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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 }, | |
afe0cbf8 | 169 | |
2e161f78 | 170 | [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, |
afe0cbf8 BR |
171 | |
172 | [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 }, | |
173 | [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 }, | |
885a46d0 FF |
174 | |
175 | [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 }, | |
55682965 JB |
176 | }; |
177 | ||
e31b8213 | 178 | /* policy for the key attributes */ |
b54452b0 | 179 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { |
fffd0934 | 180 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
b9454e83 JB |
181 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
182 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
183 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, | |
184 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
185 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
e31b8213 | 186 | [NL80211_KEY_TYPE] = { .type = NLA_U32 }, |
b9454e83 JB |
187 | }; |
188 | ||
a043897a HS |
189 | /* ifidx get helper */ |
190 | static int nl80211_get_ifidx(struct netlink_callback *cb) | |
191 | { | |
192 | int res; | |
193 | ||
194 | res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
195 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
196 | nl80211_policy); | |
197 | if (res) | |
198 | return res; | |
199 | ||
200 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
201 | return -EINVAL; | |
202 | ||
203 | res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
204 | if (!res) | |
205 | return -EINVAL; | |
206 | return res; | |
207 | } | |
208 | ||
67748893 JB |
209 | static int nl80211_prepare_netdev_dump(struct sk_buff *skb, |
210 | struct netlink_callback *cb, | |
211 | struct cfg80211_registered_device **rdev, | |
212 | struct net_device **dev) | |
213 | { | |
214 | int ifidx = cb->args[0]; | |
215 | int err; | |
216 | ||
217 | if (!ifidx) | |
218 | ifidx = nl80211_get_ifidx(cb); | |
219 | if (ifidx < 0) | |
220 | return ifidx; | |
221 | ||
222 | cb->args[0] = ifidx; | |
223 | ||
224 | rtnl_lock(); | |
225 | ||
226 | *dev = __dev_get_by_index(sock_net(skb->sk), ifidx); | |
227 | if (!*dev) { | |
228 | err = -ENODEV; | |
229 | goto out_rtnl; | |
230 | } | |
231 | ||
232 | *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); | |
3cc25e51 FF |
233 | if (IS_ERR(*rdev)) { |
234 | err = PTR_ERR(*rdev); | |
67748893 JB |
235 | goto out_rtnl; |
236 | } | |
237 | ||
238 | return 0; | |
239 | out_rtnl: | |
240 | rtnl_unlock(); | |
241 | return err; | |
242 | } | |
243 | ||
244 | static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev) | |
245 | { | |
246 | cfg80211_unlock_rdev(rdev); | |
247 | rtnl_unlock(); | |
248 | } | |
249 | ||
f4a11bb0 JB |
250 | /* IE validation */ |
251 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
252 | { | |
253 | const u8 *pos; | |
254 | int len; | |
255 | ||
256 | if (!attr) | |
257 | return true; | |
258 | ||
259 | pos = nla_data(attr); | |
260 | len = nla_len(attr); | |
261 | ||
262 | while (len) { | |
263 | u8 elemlen; | |
264 | ||
265 | if (len < 2) | |
266 | return false; | |
267 | len -= 2; | |
268 | ||
269 | elemlen = pos[1]; | |
270 | if (elemlen > len) | |
271 | return false; | |
272 | ||
273 | len -= elemlen; | |
274 | pos += 2 + elemlen; | |
275 | } | |
276 | ||
277 | return true; | |
278 | } | |
279 | ||
55682965 JB |
280 | /* message building helper */ |
281 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
282 | int flags, u8 cmd) | |
283 | { | |
284 | /* since there is no private header just add the generic one */ | |
285 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
286 | } | |
287 | ||
5dab3b8a LR |
288 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
289 | struct ieee80211_channel *chan) | |
290 | { | |
291 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
292 | chan->center_freq); | |
293 | ||
294 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
295 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); | |
296 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
297 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); | |
298 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) | |
299 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); | |
300 | if (chan->flags & IEEE80211_CHAN_RADAR) | |
301 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); | |
302 | ||
303 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, | |
304 | DBM_TO_MBM(chan->max_power)); | |
305 | ||
306 | return 0; | |
307 | ||
308 | nla_put_failure: | |
309 | return -ENOBUFS; | |
310 | } | |
311 | ||
55682965 JB |
312 | /* netlink command implementations */ |
313 | ||
b9454e83 JB |
314 | struct key_parse { |
315 | struct key_params p; | |
316 | int idx; | |
e31b8213 | 317 | int type; |
b9454e83 JB |
318 | bool def, defmgmt; |
319 | }; | |
320 | ||
321 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
322 | { | |
323 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
324 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
325 | nl80211_key_policy); | |
326 | if (err) | |
327 | return err; | |
328 | ||
329 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
330 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
331 | ||
332 | if (tb[NL80211_KEY_IDX]) | |
333 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
334 | ||
335 | if (tb[NL80211_KEY_DATA]) { | |
336 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
337 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
338 | } | |
339 | ||
340 | if (tb[NL80211_KEY_SEQ]) { | |
341 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
342 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
343 | } | |
344 | ||
345 | if (tb[NL80211_KEY_CIPHER]) | |
346 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
347 | ||
e31b8213 JB |
348 | if (tb[NL80211_KEY_TYPE]) { |
349 | k->type = nla_get_u32(tb[NL80211_KEY_TYPE]); | |
350 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
351 | return -EINVAL; | |
352 | } | |
353 | ||
b9454e83 JB |
354 | return 0; |
355 | } | |
356 | ||
357 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
358 | { | |
359 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
360 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
361 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
362 | } | |
363 | ||
364 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
365 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
366 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
367 | } | |
368 | ||
369 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
370 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
371 | ||
372 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
373 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
374 | ||
375 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
376 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
377 | ||
e31b8213 JB |
378 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { |
379 | k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
380 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
381 | return -EINVAL; | |
382 | } | |
383 | ||
b9454e83 JB |
384 | return 0; |
385 | } | |
386 | ||
387 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
388 | { | |
389 | int err; | |
390 | ||
391 | memset(k, 0, sizeof(*k)); | |
392 | k->idx = -1; | |
e31b8213 | 393 | k->type = -1; |
b9454e83 JB |
394 | |
395 | if (info->attrs[NL80211_ATTR_KEY]) | |
396 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
397 | else | |
398 | err = nl80211_parse_key_old(info, k); | |
399 | ||
400 | if (err) | |
401 | return err; | |
402 | ||
403 | if (k->def && k->defmgmt) | |
404 | return -EINVAL; | |
405 | ||
406 | if (k->idx != -1) { | |
407 | if (k->defmgmt) { | |
408 | if (k->idx < 4 || k->idx > 5) | |
409 | return -EINVAL; | |
410 | } else if (k->def) { | |
411 | if (k->idx < 0 || k->idx > 3) | |
412 | return -EINVAL; | |
413 | } else { | |
414 | if (k->idx < 0 || k->idx > 5) | |
415 | return -EINVAL; | |
416 | } | |
417 | } | |
418 | ||
419 | return 0; | |
420 | } | |
421 | ||
fffd0934 JB |
422 | static struct cfg80211_cached_keys * |
423 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
424 | struct nlattr *keys) | |
425 | { | |
426 | struct key_parse parse; | |
427 | struct nlattr *key; | |
428 | struct cfg80211_cached_keys *result; | |
429 | int rem, err, def = 0; | |
430 | ||
431 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
432 | if (!result) | |
433 | return ERR_PTR(-ENOMEM); | |
434 | ||
435 | result->def = -1; | |
436 | result->defmgmt = -1; | |
437 | ||
438 | nla_for_each_nested(key, keys, rem) { | |
439 | memset(&parse, 0, sizeof(parse)); | |
440 | parse.idx = -1; | |
441 | ||
442 | err = nl80211_parse_key_new(key, &parse); | |
443 | if (err) | |
444 | goto error; | |
445 | err = -EINVAL; | |
446 | if (!parse.p.key) | |
447 | goto error; | |
448 | if (parse.idx < 0 || parse.idx > 4) | |
449 | goto error; | |
450 | if (parse.def) { | |
451 | if (def) | |
452 | goto error; | |
453 | def = 1; | |
454 | result->def = parse.idx; | |
455 | } else if (parse.defmgmt) | |
456 | goto error; | |
457 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
e31b8213 | 458 | parse.idx, false, NULL); |
fffd0934 JB |
459 | if (err) |
460 | goto error; | |
461 | result->params[parse.idx].cipher = parse.p.cipher; | |
462 | result->params[parse.idx].key_len = parse.p.key_len; | |
463 | result->params[parse.idx].key = result->data[parse.idx]; | |
464 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
465 | } | |
466 | ||
467 | return result; | |
468 | error: | |
469 | kfree(result); | |
470 | return ERR_PTR(err); | |
471 | } | |
472 | ||
473 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
474 | { | |
475 | ASSERT_WDEV_LOCK(wdev); | |
476 | ||
fffd0934 JB |
477 | switch (wdev->iftype) { |
478 | case NL80211_IFTYPE_AP: | |
479 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 480 | case NL80211_IFTYPE_P2P_GO: |
fffd0934 JB |
481 | break; |
482 | case NL80211_IFTYPE_ADHOC: | |
483 | if (!wdev->current_bss) | |
484 | return -ENOLINK; | |
485 | break; | |
486 | case NL80211_IFTYPE_STATION: | |
074ac8df | 487 | case NL80211_IFTYPE_P2P_CLIENT: |
fffd0934 JB |
488 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
489 | return -ENOLINK; | |
490 | break; | |
491 | default: | |
492 | return -EINVAL; | |
493 | } | |
494 | ||
495 | return 0; | |
496 | } | |
497 | ||
55682965 JB |
498 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, |
499 | struct cfg80211_registered_device *dev) | |
500 | { | |
501 | void *hdr; | |
ee688b00 JB |
502 | struct nlattr *nl_bands, *nl_band; |
503 | struct nlattr *nl_freqs, *nl_freq; | |
504 | struct nlattr *nl_rates, *nl_rate; | |
f59ac048 | 505 | struct nlattr *nl_modes; |
8fdc621d | 506 | struct nlattr *nl_cmds; |
ee688b00 JB |
507 | enum ieee80211_band band; |
508 | struct ieee80211_channel *chan; | |
509 | struct ieee80211_rate *rate; | |
510 | int i; | |
f59ac048 | 511 | u16 ifmodes = dev->wiphy.interface_modes; |
2e161f78 JB |
512 | const struct ieee80211_txrx_stypes *mgmt_stypes = |
513 | dev->wiphy.mgmt_stypes; | |
55682965 JB |
514 | |
515 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
516 | if (!hdr) | |
517 | return -1; | |
518 | ||
b5850a7a | 519 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx); |
55682965 | 520 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); |
b9a5f8ca | 521 | |
f5ea9120 JB |
522 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, |
523 | cfg80211_rdev_list_generation); | |
524 | ||
b9a5f8ca JM |
525 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, |
526 | dev->wiphy.retry_short); | |
527 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, | |
528 | dev->wiphy.retry_long); | |
529 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, | |
530 | dev->wiphy.frag_threshold); | |
531 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, | |
532 | dev->wiphy.rts_threshold); | |
81077e82 LT |
533 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, |
534 | dev->wiphy.coverage_class); | |
2a519311 JB |
535 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
536 | dev->wiphy.max_scan_ssids); | |
18a83659 JB |
537 | NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, |
538 | dev->wiphy.max_scan_ie_len); | |
ee688b00 | 539 | |
e31b8213 JB |
540 | if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) |
541 | NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN); | |
542 | ||
25e47c18 JB |
543 | NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES, |
544 | sizeof(u32) * dev->wiphy.n_cipher_suites, | |
545 | dev->wiphy.cipher_suites); | |
546 | ||
67fbb16b SO |
547 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, |
548 | dev->wiphy.max_num_pmkids); | |
549 | ||
c0692b8f JB |
550 | if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) |
551 | NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE); | |
552 | ||
afe0cbf8 BR |
553 | if (dev->ops->get_antenna) { |
554 | u32 tx_ant = 0, rx_ant = 0; | |
555 | int res; | |
556 | res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant); | |
557 | if (!res) { | |
558 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant); | |
559 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant); | |
560 | } | |
561 | } | |
562 | ||
f59ac048 LR |
563 | nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES); |
564 | if (!nl_modes) | |
565 | goto nla_put_failure; | |
566 | ||
567 | i = 0; | |
568 | while (ifmodes) { | |
569 | if (ifmodes & 1) | |
570 | NLA_PUT_FLAG(msg, i); | |
571 | ifmodes >>= 1; | |
572 | i++; | |
573 | } | |
574 | ||
575 | nla_nest_end(msg, nl_modes); | |
576 | ||
ee688b00 JB |
577 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
578 | if (!nl_bands) | |
579 | goto nla_put_failure; | |
580 | ||
581 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
582 | if (!dev->wiphy.bands[band]) | |
583 | continue; | |
584 | ||
585 | nl_band = nla_nest_start(msg, band); | |
586 | if (!nl_band) | |
587 | goto nla_put_failure; | |
588 | ||
d51626df JB |
589 | /* add HT info */ |
590 | if (dev->wiphy.bands[band]->ht_cap.ht_supported) { | |
591 | NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
592 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
593 | &dev->wiphy.bands[band]->ht_cap.mcs); | |
594 | NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
595 | dev->wiphy.bands[band]->ht_cap.cap); | |
596 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
597 | dev->wiphy.bands[band]->ht_cap.ampdu_factor); | |
598 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
599 | dev->wiphy.bands[band]->ht_cap.ampdu_density); | |
600 | } | |
601 | ||
ee688b00 JB |
602 | /* add frequencies */ |
603 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
604 | if (!nl_freqs) | |
605 | goto nla_put_failure; | |
606 | ||
607 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
608 | nl_freq = nla_nest_start(msg, i); | |
609 | if (!nl_freq) | |
610 | goto nla_put_failure; | |
611 | ||
612 | chan = &dev->wiphy.bands[band]->channels[i]; | |
5dab3b8a LR |
613 | |
614 | if (nl80211_msg_put_channel(msg, chan)) | |
615 | goto nla_put_failure; | |
e2f367f2 | 616 | |
ee688b00 JB |
617 | nla_nest_end(msg, nl_freq); |
618 | } | |
619 | ||
620 | nla_nest_end(msg, nl_freqs); | |
621 | ||
622 | /* add bitrates */ | |
623 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
624 | if (!nl_rates) | |
625 | goto nla_put_failure; | |
626 | ||
627 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
628 | nl_rate = nla_nest_start(msg, i); | |
629 | if (!nl_rate) | |
630 | goto nla_put_failure; | |
631 | ||
632 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
633 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, | |
634 | rate->bitrate); | |
635 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) | |
636 | NLA_PUT_FLAG(msg, | |
637 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); | |
638 | ||
639 | nla_nest_end(msg, nl_rate); | |
640 | } | |
641 | ||
642 | nla_nest_end(msg, nl_rates); | |
643 | ||
644 | nla_nest_end(msg, nl_band); | |
645 | } | |
646 | nla_nest_end(msg, nl_bands); | |
647 | ||
8fdc621d JB |
648 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
649 | if (!nl_cmds) | |
650 | goto nla_put_failure; | |
651 | ||
652 | i = 0; | |
653 | #define CMD(op, n) \ | |
654 | do { \ | |
655 | if (dev->ops->op) { \ | |
656 | i++; \ | |
657 | NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \ | |
658 | } \ | |
659 | } while (0) | |
660 | ||
661 | CMD(add_virtual_intf, NEW_INTERFACE); | |
662 | CMD(change_virtual_intf, SET_INTERFACE); | |
663 | CMD(add_key, NEW_KEY); | |
664 | CMD(add_beacon, NEW_BEACON); | |
665 | CMD(add_station, NEW_STATION); | |
666 | CMD(add_mpath, NEW_MPATH); | |
667 | CMD(set_mesh_params, SET_MESH_PARAMS); | |
668 | CMD(change_bss, SET_BSS); | |
636a5d36 JM |
669 | CMD(auth, AUTHENTICATE); |
670 | CMD(assoc, ASSOCIATE); | |
671 | CMD(deauth, DEAUTHENTICATE); | |
672 | CMD(disassoc, DISASSOCIATE); | |
04a773ad | 673 | CMD(join_ibss, JOIN_IBSS); |
67fbb16b SO |
674 | CMD(set_pmksa, SET_PMKSA); |
675 | CMD(del_pmksa, DEL_PMKSA); | |
676 | CMD(flush_pmksa, FLUSH_PMKSA); | |
9588bbd5 | 677 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); |
13ae75b1 | 678 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); |
2e161f78 | 679 | CMD(mgmt_tx, FRAME); |
5be83de5 | 680 | if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
463d0183 JB |
681 | i++; |
682 | NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS); | |
683 | } | |
f444de05 | 684 | CMD(set_channel, SET_CHANNEL); |
e8347eba | 685 | CMD(set_wds_peer, SET_WDS_PEER); |
8fdc621d JB |
686 | |
687 | #undef CMD | |
b23aa676 | 688 | |
6829c878 | 689 | if (dev->ops->connect || dev->ops->auth) { |
b23aa676 SO |
690 | i++; |
691 | NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT); | |
692 | } | |
693 | ||
6829c878 | 694 | if (dev->ops->disconnect || dev->ops->deauth) { |
b23aa676 SO |
695 | i++; |
696 | NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT); | |
697 | } | |
698 | ||
8fdc621d JB |
699 | nla_nest_end(msg, nl_cmds); |
700 | ||
2e161f78 JB |
701 | if (mgmt_stypes) { |
702 | u16 stypes; | |
703 | struct nlattr *nl_ftypes, *nl_ifs; | |
704 | enum nl80211_iftype ift; | |
705 | ||
706 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES); | |
707 | if (!nl_ifs) | |
708 | goto nla_put_failure; | |
709 | ||
710 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
711 | nl_ftypes = nla_nest_start(msg, ift); | |
712 | if (!nl_ftypes) | |
713 | goto nla_put_failure; | |
714 | i = 0; | |
715 | stypes = mgmt_stypes[ift].tx; | |
716 | while (stypes) { | |
717 | if (stypes & 1) | |
718 | NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, | |
719 | (i << 4) | IEEE80211_FTYPE_MGMT); | |
720 | stypes >>= 1; | |
721 | i++; | |
722 | } | |
723 | nla_nest_end(msg, nl_ftypes); | |
724 | } | |
725 | ||
74b70a4e JB |
726 | nla_nest_end(msg, nl_ifs); |
727 | ||
2e161f78 JB |
728 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES); |
729 | if (!nl_ifs) | |
730 | goto nla_put_failure; | |
731 | ||
732 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
733 | nl_ftypes = nla_nest_start(msg, ift); | |
734 | if (!nl_ftypes) | |
735 | goto nla_put_failure; | |
736 | i = 0; | |
737 | stypes = mgmt_stypes[ift].rx; | |
738 | while (stypes) { | |
739 | if (stypes & 1) | |
740 | NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, | |
741 | (i << 4) | IEEE80211_FTYPE_MGMT); | |
742 | stypes >>= 1; | |
743 | i++; | |
744 | } | |
745 | nla_nest_end(msg, nl_ftypes); | |
746 | } | |
747 | nla_nest_end(msg, nl_ifs); | |
748 | } | |
749 | ||
55682965 JB |
750 | return genlmsg_end(msg, hdr); |
751 | ||
752 | nla_put_failure: | |
bc3ed28c TG |
753 | genlmsg_cancel(msg, hdr); |
754 | return -EMSGSIZE; | |
55682965 JB |
755 | } |
756 | ||
757 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
758 | { | |
759 | int idx = 0; | |
760 | int start = cb->args[0]; | |
761 | struct cfg80211_registered_device *dev; | |
762 | ||
a1794390 | 763 | mutex_lock(&cfg80211_mutex); |
79c97e97 | 764 | list_for_each_entry(dev, &cfg80211_rdev_list, list) { |
463d0183 JB |
765 | if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk))) |
766 | continue; | |
b4637271 | 767 | if (++idx <= start) |
55682965 JB |
768 | continue; |
769 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
770 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
b4637271 JV |
771 | dev) < 0) { |
772 | idx--; | |
55682965 | 773 | break; |
b4637271 | 774 | } |
55682965 | 775 | } |
a1794390 | 776 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
777 | |
778 | cb->args[0] = idx; | |
779 | ||
780 | return skb->len; | |
781 | } | |
782 | ||
783 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
784 | { | |
785 | struct sk_buff *msg; | |
4c476991 | 786 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
55682965 | 787 | |
fd2120ca | 788 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 789 | if (!msg) |
4c476991 | 790 | return -ENOMEM; |
55682965 | 791 | |
4c476991 JB |
792 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) { |
793 | nlmsg_free(msg); | |
794 | return -ENOBUFS; | |
795 | } | |
55682965 | 796 | |
134e6375 | 797 | return genlmsg_reply(msg, info); |
55682965 JB |
798 | } |
799 | ||
31888487 JM |
800 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
801 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
802 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
803 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
804 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
805 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
806 | }; | |
807 | ||
808 | static int parse_txq_params(struct nlattr *tb[], | |
809 | struct ieee80211_txq_params *txq_params) | |
810 | { | |
811 | if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] || | |
812 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || | |
813 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
814 | return -EINVAL; | |
815 | ||
816 | txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]); | |
817 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); | |
818 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
819 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
820 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
821 | ||
822 | return 0; | |
823 | } | |
824 | ||
f444de05 JB |
825 | static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) |
826 | { | |
827 | /* | |
828 | * You can only set the channel explicitly for AP, mesh | |
829 | * and WDS type interfaces; all others have their channel | |
830 | * managed via their respective "establish a connection" | |
831 | * command (connect, join, ...) | |
832 | * | |
833 | * Monitors are special as they are normally slaved to | |
834 | * whatever else is going on, so they behave as though | |
835 | * you tried setting the wiphy channel itself. | |
836 | */ | |
837 | return !wdev || | |
838 | wdev->iftype == NL80211_IFTYPE_AP || | |
839 | wdev->iftype == NL80211_IFTYPE_WDS || | |
840 | wdev->iftype == NL80211_IFTYPE_MESH_POINT || | |
074ac8df JB |
841 | wdev->iftype == NL80211_IFTYPE_MONITOR || |
842 | wdev->iftype == NL80211_IFTYPE_P2P_GO; | |
f444de05 JB |
843 | } |
844 | ||
845 | static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, | |
846 | struct wireless_dev *wdev, | |
847 | struct genl_info *info) | |
848 | { | |
849 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
850 | u32 freq; | |
851 | int result; | |
852 | ||
853 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
854 | return -EINVAL; | |
855 | ||
856 | if (!nl80211_can_set_dev_channel(wdev)) | |
857 | return -EOPNOTSUPP; | |
858 | ||
859 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
860 | channel_type = nla_get_u32(info->attrs[ | |
861 | NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
862 | if (channel_type != NL80211_CHAN_NO_HT && | |
863 | channel_type != NL80211_CHAN_HT20 && | |
864 | channel_type != NL80211_CHAN_HT40PLUS && | |
865 | channel_type != NL80211_CHAN_HT40MINUS) | |
866 | return -EINVAL; | |
867 | } | |
868 | ||
869 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
870 | ||
871 | mutex_lock(&rdev->devlist_mtx); | |
872 | if (wdev) { | |
873 | wdev_lock(wdev); | |
874 | result = cfg80211_set_freq(rdev, wdev, freq, channel_type); | |
875 | wdev_unlock(wdev); | |
876 | } else { | |
877 | result = cfg80211_set_freq(rdev, NULL, freq, channel_type); | |
878 | } | |
879 | mutex_unlock(&rdev->devlist_mtx); | |
880 | ||
881 | return result; | |
882 | } | |
883 | ||
884 | static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) | |
885 | { | |
4c476991 JB |
886 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
887 | struct net_device *netdev = info->user_ptr[1]; | |
f444de05 | 888 | |
4c476991 | 889 | return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); |
f444de05 JB |
890 | } |
891 | ||
e8347eba BJ |
892 | static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info) |
893 | { | |
43b19952 JB |
894 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
895 | struct net_device *dev = info->user_ptr[1]; | |
896 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
388ac775 | 897 | const u8 *bssid; |
e8347eba BJ |
898 | |
899 | if (!info->attrs[NL80211_ATTR_MAC]) | |
900 | return -EINVAL; | |
901 | ||
43b19952 JB |
902 | if (netif_running(dev)) |
903 | return -EBUSY; | |
e8347eba | 904 | |
43b19952 JB |
905 | if (!rdev->ops->set_wds_peer) |
906 | return -EOPNOTSUPP; | |
e8347eba | 907 | |
43b19952 JB |
908 | if (wdev->iftype != NL80211_IFTYPE_WDS) |
909 | return -EOPNOTSUPP; | |
e8347eba BJ |
910 | |
911 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
43b19952 | 912 | return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid); |
e8347eba BJ |
913 | } |
914 | ||
915 | ||
55682965 JB |
916 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
917 | { | |
918 | struct cfg80211_registered_device *rdev; | |
f444de05 JB |
919 | struct net_device *netdev = NULL; |
920 | struct wireless_dev *wdev; | |
a1e567c8 | 921 | int result = 0, rem_txq_params = 0; |
31888487 | 922 | struct nlattr *nl_txq_params; |
b9a5f8ca JM |
923 | u32 changed; |
924 | u8 retry_short = 0, retry_long = 0; | |
925 | u32 frag_threshold = 0, rts_threshold = 0; | |
81077e82 | 926 | u8 coverage_class = 0; |
55682965 | 927 | |
f444de05 JB |
928 | /* |
929 | * Try to find the wiphy and netdev. Normally this | |
930 | * function shouldn't need the netdev, but this is | |
931 | * done for backward compatibility -- previously | |
932 | * setting the channel was done per wiphy, but now | |
933 | * it is per netdev. Previous userland like hostapd | |
934 | * also passed a netdev to set_wiphy, so that it is | |
935 | * possible to let that go to the right netdev! | |
936 | */ | |
4bbf4d56 JB |
937 | mutex_lock(&cfg80211_mutex); |
938 | ||
f444de05 JB |
939 | if (info->attrs[NL80211_ATTR_IFINDEX]) { |
940 | int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
941 | ||
942 | netdev = dev_get_by_index(genl_info_net(info), ifindex); | |
943 | if (netdev && netdev->ieee80211_ptr) { | |
944 | rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy); | |
945 | mutex_lock(&rdev->mtx); | |
946 | } else | |
947 | netdev = NULL; | |
4bbf4d56 JB |
948 | } |
949 | ||
f444de05 JB |
950 | if (!netdev) { |
951 | rdev = __cfg80211_rdev_from_info(info); | |
952 | if (IS_ERR(rdev)) { | |
953 | mutex_unlock(&cfg80211_mutex); | |
4c476991 | 954 | return PTR_ERR(rdev); |
f444de05 JB |
955 | } |
956 | wdev = NULL; | |
957 | netdev = NULL; | |
958 | result = 0; | |
959 | ||
960 | mutex_lock(&rdev->mtx); | |
961 | } else if (netif_running(netdev) && | |
962 | nl80211_can_set_dev_channel(netdev->ieee80211_ptr)) | |
963 | wdev = netdev->ieee80211_ptr; | |
964 | else | |
965 | wdev = NULL; | |
966 | ||
967 | /* | |
968 | * end workaround code, by now the rdev is available | |
969 | * and locked, and wdev may or may not be NULL. | |
970 | */ | |
4bbf4d56 JB |
971 | |
972 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
973 | result = cfg80211_dev_rename( |
974 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
975 | |
976 | mutex_unlock(&cfg80211_mutex); | |
977 | ||
978 | if (result) | |
979 | goto bad_res; | |
31888487 JM |
980 | |
981 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
982 | struct ieee80211_txq_params txq_params; | |
983 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
984 | ||
985 | if (!rdev->ops->set_txq_params) { | |
986 | result = -EOPNOTSUPP; | |
987 | goto bad_res; | |
988 | } | |
989 | ||
990 | nla_for_each_nested(nl_txq_params, | |
991 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
992 | rem_txq_params) { | |
993 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
994 | nla_data(nl_txq_params), | |
995 | nla_len(nl_txq_params), | |
996 | txq_params_policy); | |
997 | result = parse_txq_params(tb, &txq_params); | |
998 | if (result) | |
999 | goto bad_res; | |
1000 | ||
1001 | result = rdev->ops->set_txq_params(&rdev->wiphy, | |
1002 | &txq_params); | |
1003 | if (result) | |
1004 | goto bad_res; | |
1005 | } | |
1006 | } | |
55682965 | 1007 | |
72bdcf34 | 1008 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
f444de05 | 1009 | result = __nl80211_set_channel(rdev, wdev, info); |
72bdcf34 JM |
1010 | if (result) |
1011 | goto bad_res; | |
1012 | } | |
1013 | ||
98d2ff8b JO |
1014 | if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { |
1015 | enum nl80211_tx_power_setting type; | |
1016 | int idx, mbm = 0; | |
1017 | ||
1018 | if (!rdev->ops->set_tx_power) { | |
60ea385f | 1019 | result = -EOPNOTSUPP; |
98d2ff8b JO |
1020 | goto bad_res; |
1021 | } | |
1022 | ||
1023 | idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; | |
1024 | type = nla_get_u32(info->attrs[idx]); | |
1025 | ||
1026 | if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && | |
1027 | (type != NL80211_TX_POWER_AUTOMATIC)) { | |
1028 | result = -EINVAL; | |
1029 | goto bad_res; | |
1030 | } | |
1031 | ||
1032 | if (type != NL80211_TX_POWER_AUTOMATIC) { | |
1033 | idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; | |
1034 | mbm = nla_get_u32(info->attrs[idx]); | |
1035 | } | |
1036 | ||
1037 | result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm); | |
1038 | if (result) | |
1039 | goto bad_res; | |
1040 | } | |
1041 | ||
afe0cbf8 BR |
1042 | if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] && |
1043 | info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) { | |
1044 | u32 tx_ant, rx_ant; | |
1045 | if (!rdev->ops->set_antenna) { | |
1046 | result = -EOPNOTSUPP; | |
1047 | goto bad_res; | |
1048 | } | |
1049 | ||
1050 | tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]); | |
1051 | rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]); | |
1052 | ||
1053 | result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant); | |
1054 | if (result) | |
1055 | goto bad_res; | |
1056 | } | |
1057 | ||
b9a5f8ca JM |
1058 | changed = 0; |
1059 | ||
1060 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
1061 | retry_short = nla_get_u8( | |
1062 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
1063 | if (retry_short == 0) { | |
1064 | result = -EINVAL; | |
1065 | goto bad_res; | |
1066 | } | |
1067 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
1068 | } | |
1069 | ||
1070 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
1071 | retry_long = nla_get_u8( | |
1072 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
1073 | if (retry_long == 0) { | |
1074 | result = -EINVAL; | |
1075 | goto bad_res; | |
1076 | } | |
1077 | changed |= WIPHY_PARAM_RETRY_LONG; | |
1078 | } | |
1079 | ||
1080 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
1081 | frag_threshold = nla_get_u32( | |
1082 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
1083 | if (frag_threshold < 256) { | |
1084 | result = -EINVAL; | |
1085 | goto bad_res; | |
1086 | } | |
1087 | if (frag_threshold != (u32) -1) { | |
1088 | /* | |
1089 | * Fragments (apart from the last one) are required to | |
1090 | * have even length. Make the fragmentation code | |
1091 | * simpler by stripping LSB should someone try to use | |
1092 | * odd threshold value. | |
1093 | */ | |
1094 | frag_threshold &= ~0x1; | |
1095 | } | |
1096 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
1097 | } | |
1098 | ||
1099 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
1100 | rts_threshold = nla_get_u32( | |
1101 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
1102 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
1103 | } | |
1104 | ||
81077e82 LT |
1105 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { |
1106 | coverage_class = nla_get_u8( | |
1107 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
1108 | changed |= WIPHY_PARAM_COVERAGE_CLASS; | |
1109 | } | |
1110 | ||
b9a5f8ca JM |
1111 | if (changed) { |
1112 | u8 old_retry_short, old_retry_long; | |
1113 | u32 old_frag_threshold, old_rts_threshold; | |
81077e82 | 1114 | u8 old_coverage_class; |
b9a5f8ca JM |
1115 | |
1116 | if (!rdev->ops->set_wiphy_params) { | |
1117 | result = -EOPNOTSUPP; | |
1118 | goto bad_res; | |
1119 | } | |
1120 | ||
1121 | old_retry_short = rdev->wiphy.retry_short; | |
1122 | old_retry_long = rdev->wiphy.retry_long; | |
1123 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
1124 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
81077e82 | 1125 | old_coverage_class = rdev->wiphy.coverage_class; |
b9a5f8ca JM |
1126 | |
1127 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
1128 | rdev->wiphy.retry_short = retry_short; | |
1129 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
1130 | rdev->wiphy.retry_long = retry_long; | |
1131 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
1132 | rdev->wiphy.frag_threshold = frag_threshold; | |
1133 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
1134 | rdev->wiphy.rts_threshold = rts_threshold; | |
81077e82 LT |
1135 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) |
1136 | rdev->wiphy.coverage_class = coverage_class; | |
b9a5f8ca JM |
1137 | |
1138 | result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed); | |
1139 | if (result) { | |
1140 | rdev->wiphy.retry_short = old_retry_short; | |
1141 | rdev->wiphy.retry_long = old_retry_long; | |
1142 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
1143 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
81077e82 | 1144 | rdev->wiphy.coverage_class = old_coverage_class; |
b9a5f8ca JM |
1145 | } |
1146 | } | |
72bdcf34 | 1147 | |
306d6112 | 1148 | bad_res: |
4bbf4d56 | 1149 | mutex_unlock(&rdev->mtx); |
f444de05 JB |
1150 | if (netdev) |
1151 | dev_put(netdev); | |
55682965 JB |
1152 | return result; |
1153 | } | |
1154 | ||
1155 | ||
1156 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
d726405a | 1157 | struct cfg80211_registered_device *rdev, |
55682965 JB |
1158 | struct net_device *dev) |
1159 | { | |
1160 | void *hdr; | |
1161 | ||
1162 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
1163 | if (!hdr) | |
1164 | return -1; | |
1165 | ||
1166 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
d726405a | 1167 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
55682965 | 1168 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); |
60719ffd | 1169 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype); |
f5ea9120 JB |
1170 | |
1171 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, | |
1172 | rdev->devlist_generation ^ | |
1173 | (cfg80211_rdev_list_generation << 2)); | |
1174 | ||
55682965 JB |
1175 | return genlmsg_end(msg, hdr); |
1176 | ||
1177 | nla_put_failure: | |
bc3ed28c TG |
1178 | genlmsg_cancel(msg, hdr); |
1179 | return -EMSGSIZE; | |
55682965 JB |
1180 | } |
1181 | ||
1182 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
1183 | { | |
1184 | int wp_idx = 0; | |
1185 | int if_idx = 0; | |
1186 | int wp_start = cb->args[0]; | |
1187 | int if_start = cb->args[1]; | |
f5ea9120 | 1188 | struct cfg80211_registered_device *rdev; |
55682965 JB |
1189 | struct wireless_dev *wdev; |
1190 | ||
a1794390 | 1191 | mutex_lock(&cfg80211_mutex); |
f5ea9120 JB |
1192 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
1193 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 1194 | continue; |
bba95fef JB |
1195 | if (wp_idx < wp_start) { |
1196 | wp_idx++; | |
55682965 | 1197 | continue; |
bba95fef | 1198 | } |
55682965 JB |
1199 | if_idx = 0; |
1200 | ||
f5ea9120 JB |
1201 | mutex_lock(&rdev->devlist_mtx); |
1202 | list_for_each_entry(wdev, &rdev->netdev_list, list) { | |
bba95fef JB |
1203 | if (if_idx < if_start) { |
1204 | if_idx++; | |
55682965 | 1205 | continue; |
bba95fef | 1206 | } |
55682965 JB |
1207 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, |
1208 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
f5ea9120 JB |
1209 | rdev, wdev->netdev) < 0) { |
1210 | mutex_unlock(&rdev->devlist_mtx); | |
bba95fef JB |
1211 | goto out; |
1212 | } | |
1213 | if_idx++; | |
55682965 | 1214 | } |
f5ea9120 | 1215 | mutex_unlock(&rdev->devlist_mtx); |
bba95fef JB |
1216 | |
1217 | wp_idx++; | |
55682965 | 1218 | } |
bba95fef | 1219 | out: |
a1794390 | 1220 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
1221 | |
1222 | cb->args[0] = wp_idx; | |
1223 | cb->args[1] = if_idx; | |
1224 | ||
1225 | return skb->len; | |
1226 | } | |
1227 | ||
1228 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
1229 | { | |
1230 | struct sk_buff *msg; | |
4c476991 JB |
1231 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
1232 | struct net_device *netdev = info->user_ptr[1]; | |
55682965 | 1233 | |
fd2120ca | 1234 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 1235 | if (!msg) |
4c476991 | 1236 | return -ENOMEM; |
55682965 | 1237 | |
d726405a | 1238 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, |
4c476991 JB |
1239 | dev, netdev) < 0) { |
1240 | nlmsg_free(msg); | |
1241 | return -ENOBUFS; | |
1242 | } | |
55682965 | 1243 | |
134e6375 | 1244 | return genlmsg_reply(msg, info); |
55682965 JB |
1245 | } |
1246 | ||
66f7ac50 MW |
1247 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
1248 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
1249 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
1250 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
1251 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
1252 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
1253 | }; | |
1254 | ||
1255 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
1256 | { | |
1257 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
1258 | int flag; | |
1259 | ||
1260 | *mntrflags = 0; | |
1261 | ||
1262 | if (!nla) | |
1263 | return -EINVAL; | |
1264 | ||
1265 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
1266 | nla, mntr_flags_policy)) | |
1267 | return -EINVAL; | |
1268 | ||
1269 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
1270 | if (flags[flag]) | |
1271 | *mntrflags |= (1<<flag); | |
1272 | ||
1273 | return 0; | |
1274 | } | |
1275 | ||
9bc383de | 1276 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
ad4bb6f8 JB |
1277 | struct net_device *netdev, u8 use_4addr, |
1278 | enum nl80211_iftype iftype) | |
9bc383de | 1279 | { |
ad4bb6f8 | 1280 | if (!use_4addr) { |
f350a0a8 | 1281 | if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT)) |
ad4bb6f8 | 1282 | return -EBUSY; |
9bc383de | 1283 | return 0; |
ad4bb6f8 | 1284 | } |
9bc383de JB |
1285 | |
1286 | switch (iftype) { | |
1287 | case NL80211_IFTYPE_AP_VLAN: | |
1288 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
1289 | return 0; | |
1290 | break; | |
1291 | case NL80211_IFTYPE_STATION: | |
1292 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
1293 | return 0; | |
1294 | break; | |
1295 | default: | |
1296 | break; | |
1297 | } | |
1298 | ||
1299 | return -EOPNOTSUPP; | |
1300 | } | |
1301 | ||
55682965 JB |
1302 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
1303 | { | |
4c476991 | 1304 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 1305 | struct vif_params params; |
e36d56b6 | 1306 | int err; |
04a773ad | 1307 | enum nl80211_iftype otype, ntype; |
4c476991 | 1308 | struct net_device *dev = info->user_ptr[1]; |
92ffe055 | 1309 | u32 _flags, *flags = NULL; |
ac7f9cfa | 1310 | bool change = false; |
55682965 | 1311 | |
2ec600d6 LCC |
1312 | memset(¶ms, 0, sizeof(params)); |
1313 | ||
04a773ad | 1314 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 1315 | |
723b038d | 1316 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 1317 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 1318 | if (otype != ntype) |
ac7f9cfa | 1319 | change = true; |
4c476991 JB |
1320 | if (ntype > NL80211_IFTYPE_MAX) |
1321 | return -EINVAL; | |
723b038d JB |
1322 | } |
1323 | ||
92ffe055 | 1324 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
4c476991 JB |
1325 | if (ntype != NL80211_IFTYPE_MESH_POINT) |
1326 | return -EINVAL; | |
2ec600d6 LCC |
1327 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
1328 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
ac7f9cfa | 1329 | change = true; |
2ec600d6 LCC |
1330 | } |
1331 | ||
8b787643 FF |
1332 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
1333 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
1334 | change = true; | |
ad4bb6f8 | 1335 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
9bc383de | 1336 | if (err) |
4c476991 | 1337 | return err; |
8b787643 FF |
1338 | } else { |
1339 | params.use_4addr = -1; | |
1340 | } | |
1341 | ||
92ffe055 | 1342 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
4c476991 JB |
1343 | if (ntype != NL80211_IFTYPE_MONITOR) |
1344 | return -EINVAL; | |
92ffe055 JB |
1345 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], |
1346 | &_flags); | |
ac7f9cfa | 1347 | if (err) |
4c476991 | 1348 | return err; |
ac7f9cfa JB |
1349 | |
1350 | flags = &_flags; | |
1351 | change = true; | |
92ffe055 | 1352 | } |
3b85875a | 1353 | |
ac7f9cfa | 1354 | if (change) |
3d54d255 | 1355 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); |
ac7f9cfa JB |
1356 | else |
1357 | err = 0; | |
60719ffd | 1358 | |
9bc383de JB |
1359 | if (!err && params.use_4addr != -1) |
1360 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
1361 | ||
55682965 JB |
1362 | return err; |
1363 | } | |
1364 | ||
1365 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
1366 | { | |
4c476991 | 1367 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 1368 | struct vif_params params; |
55682965 JB |
1369 | int err; |
1370 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 1371 | u32 flags; |
55682965 | 1372 | |
2ec600d6 LCC |
1373 | memset(¶ms, 0, sizeof(params)); |
1374 | ||
55682965 JB |
1375 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
1376 | return -EINVAL; | |
1377 | ||
1378 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
1379 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
1380 | if (type > NL80211_IFTYPE_MAX) | |
1381 | return -EINVAL; | |
1382 | } | |
1383 | ||
79c97e97 | 1384 | if (!rdev->ops->add_virtual_intf || |
4c476991 JB |
1385 | !(rdev->wiphy.interface_modes & (1 << type))) |
1386 | return -EOPNOTSUPP; | |
55682965 | 1387 | |
2ec600d6 LCC |
1388 | if (type == NL80211_IFTYPE_MESH_POINT && |
1389 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
1390 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
1391 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
1392 | } | |
1393 | ||
9bc383de | 1394 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
8b787643 | 1395 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
ad4bb6f8 | 1396 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
9bc383de | 1397 | if (err) |
4c476991 | 1398 | return err; |
9bc383de | 1399 | } |
8b787643 | 1400 | |
66f7ac50 MW |
1401 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
1402 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
1403 | &flags); | |
79c97e97 | 1404 | err = rdev->ops->add_virtual_intf(&rdev->wiphy, |
66f7ac50 | 1405 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 1406 | type, err ? NULL : &flags, ¶ms); |
2ec600d6 | 1407 | |
55682965 JB |
1408 | return err; |
1409 | } | |
1410 | ||
1411 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
1412 | { | |
4c476991 JB |
1413 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1414 | struct net_device *dev = info->user_ptr[1]; | |
55682965 | 1415 | |
4c476991 JB |
1416 | if (!rdev->ops->del_virtual_intf) |
1417 | return -EOPNOTSUPP; | |
55682965 | 1418 | |
4c476991 | 1419 | return rdev->ops->del_virtual_intf(&rdev->wiphy, dev); |
55682965 JB |
1420 | } |
1421 | ||
41ade00f JB |
1422 | struct get_key_cookie { |
1423 | struct sk_buff *msg; | |
1424 | int error; | |
b9454e83 | 1425 | int idx; |
41ade00f JB |
1426 | }; |
1427 | ||
1428 | static void get_key_callback(void *c, struct key_params *params) | |
1429 | { | |
b9454e83 | 1430 | struct nlattr *key; |
41ade00f JB |
1431 | struct get_key_cookie *cookie = c; |
1432 | ||
1433 | if (params->key) | |
1434 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
1435 | params->key_len, params->key); | |
1436 | ||
1437 | if (params->seq) | |
1438 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
1439 | params->seq_len, params->seq); | |
1440 | ||
1441 | if (params->cipher) | |
1442 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
1443 | params->cipher); | |
1444 | ||
b9454e83 JB |
1445 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
1446 | if (!key) | |
1447 | goto nla_put_failure; | |
1448 | ||
1449 | if (params->key) | |
1450 | NLA_PUT(cookie->msg, NL80211_KEY_DATA, | |
1451 | params->key_len, params->key); | |
1452 | ||
1453 | if (params->seq) | |
1454 | NLA_PUT(cookie->msg, NL80211_KEY_SEQ, | |
1455 | params->seq_len, params->seq); | |
1456 | ||
1457 | if (params->cipher) | |
1458 | NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER, | |
1459 | params->cipher); | |
1460 | ||
1461 | NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx); | |
1462 | ||
1463 | nla_nest_end(cookie->msg, key); | |
1464 | ||
41ade00f JB |
1465 | return; |
1466 | nla_put_failure: | |
1467 | cookie->error = 1; | |
1468 | } | |
1469 | ||
1470 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
1471 | { | |
4c476991 | 1472 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 1473 | int err; |
4c476991 | 1474 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 1475 | u8 key_idx = 0; |
e31b8213 JB |
1476 | const u8 *mac_addr = NULL; |
1477 | bool pairwise; | |
41ade00f JB |
1478 | struct get_key_cookie cookie = { |
1479 | .error = 0, | |
1480 | }; | |
1481 | void *hdr; | |
1482 | struct sk_buff *msg; | |
1483 | ||
1484 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
1485 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1486 | ||
3cfcf6ac | 1487 | if (key_idx > 5) |
41ade00f JB |
1488 | return -EINVAL; |
1489 | ||
1490 | if (info->attrs[NL80211_ATTR_MAC]) | |
1491 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1492 | ||
e31b8213 JB |
1493 | pairwise = !!mac_addr; |
1494 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { | |
1495 | u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
1496 | if (kt >= NUM_NL80211_KEYTYPES) | |
1497 | return -EINVAL; | |
1498 | if (kt != NL80211_KEYTYPE_GROUP && | |
1499 | kt != NL80211_KEYTYPE_PAIRWISE) | |
1500 | return -EINVAL; | |
1501 | pairwise = kt == NL80211_KEYTYPE_PAIRWISE; | |
1502 | } | |
1503 | ||
4c476991 JB |
1504 | if (!rdev->ops->get_key) |
1505 | return -EOPNOTSUPP; | |
41ade00f | 1506 | |
fd2120ca | 1507 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
1508 | if (!msg) |
1509 | return -ENOMEM; | |
41ade00f JB |
1510 | |
1511 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
1512 | NL80211_CMD_NEW_KEY); | |
4c476991 JB |
1513 | if (IS_ERR(hdr)) |
1514 | return PTR_ERR(hdr); | |
41ade00f JB |
1515 | |
1516 | cookie.msg = msg; | |
b9454e83 | 1517 | cookie.idx = key_idx; |
41ade00f JB |
1518 | |
1519 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1520 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
1521 | if (mac_addr) | |
1522 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1523 | ||
e31b8213 JB |
1524 | if (pairwise && mac_addr && |
1525 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
1526 | return -ENOENT; | |
1527 | ||
1528 | err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise, | |
1529 | mac_addr, &cookie, get_key_callback); | |
41ade00f JB |
1530 | |
1531 | if (err) | |
6c95e2a2 | 1532 | goto free_msg; |
41ade00f JB |
1533 | |
1534 | if (cookie.error) | |
1535 | goto nla_put_failure; | |
1536 | ||
1537 | genlmsg_end(msg, hdr); | |
4c476991 | 1538 | return genlmsg_reply(msg, info); |
41ade00f JB |
1539 | |
1540 | nla_put_failure: | |
1541 | err = -ENOBUFS; | |
6c95e2a2 | 1542 | free_msg: |
41ade00f | 1543 | nlmsg_free(msg); |
41ade00f JB |
1544 | return err; |
1545 | } | |
1546 | ||
1547 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
1548 | { | |
4c476991 | 1549 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
b9454e83 | 1550 | struct key_parse key; |
41ade00f | 1551 | int err; |
4c476991 | 1552 | struct net_device *dev = info->user_ptr[1]; |
3cfcf6ac JM |
1553 | int (*func)(struct wiphy *wiphy, struct net_device *netdev, |
1554 | u8 key_index); | |
41ade00f | 1555 | |
b9454e83 JB |
1556 | err = nl80211_parse_key(info, &key); |
1557 | if (err) | |
1558 | return err; | |
41ade00f | 1559 | |
b9454e83 | 1560 | if (key.idx < 0) |
41ade00f JB |
1561 | return -EINVAL; |
1562 | ||
b9454e83 JB |
1563 | /* only support setting default key */ |
1564 | if (!key.def && !key.defmgmt) | |
41ade00f JB |
1565 | return -EINVAL; |
1566 | ||
b9454e83 | 1567 | if (key.def) |
79c97e97 | 1568 | func = rdev->ops->set_default_key; |
3cfcf6ac | 1569 | else |
79c97e97 | 1570 | func = rdev->ops->set_default_mgmt_key; |
3cfcf6ac | 1571 | |
4c476991 JB |
1572 | if (!func) |
1573 | return -EOPNOTSUPP; | |
41ade00f | 1574 | |
fffd0934 JB |
1575 | wdev_lock(dev->ieee80211_ptr); |
1576 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1577 | if (!err) | |
1578 | err = func(&rdev->wiphy, dev, key.idx); | |
1579 | ||
3d23e349 | 1580 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 1581 | if (!err) { |
79c97e97 | 1582 | if (func == rdev->ops->set_default_key) |
b9454e83 | 1583 | dev->ieee80211_ptr->wext.default_key = key.idx; |
08645126 | 1584 | else |
b9454e83 | 1585 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; |
08645126 JB |
1586 | } |
1587 | #endif | |
fffd0934 | 1588 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f | 1589 | |
41ade00f JB |
1590 | return err; |
1591 | } | |
1592 | ||
1593 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
1594 | { | |
4c476991 | 1595 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fffd0934 | 1596 | int err; |
4c476991 | 1597 | struct net_device *dev = info->user_ptr[1]; |
b9454e83 | 1598 | struct key_parse key; |
e31b8213 | 1599 | const u8 *mac_addr = NULL; |
41ade00f | 1600 | |
b9454e83 JB |
1601 | err = nl80211_parse_key(info, &key); |
1602 | if (err) | |
1603 | return err; | |
41ade00f | 1604 | |
b9454e83 | 1605 | if (!key.p.key) |
41ade00f JB |
1606 | return -EINVAL; |
1607 | ||
41ade00f JB |
1608 | if (info->attrs[NL80211_ATTR_MAC]) |
1609 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1610 | ||
e31b8213 JB |
1611 | if (key.type == -1) { |
1612 | if (mac_addr) | |
1613 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
1614 | else | |
1615 | key.type = NL80211_KEYTYPE_GROUP; | |
1616 | } | |
1617 | ||
1618 | /* for now */ | |
1619 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
1620 | key.type != NL80211_KEYTYPE_GROUP) | |
1621 | return -EINVAL; | |
1622 | ||
4c476991 JB |
1623 | if (!rdev->ops->add_key) |
1624 | return -EOPNOTSUPP; | |
25e47c18 | 1625 | |
e31b8213 JB |
1626 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, |
1627 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
1628 | mac_addr)) | |
4c476991 | 1629 | return -EINVAL; |
41ade00f | 1630 | |
fffd0934 JB |
1631 | wdev_lock(dev->ieee80211_ptr); |
1632 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1633 | if (!err) | |
1634 | err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx, | |
e31b8213 | 1635 | key.type == NL80211_KEYTYPE_PAIRWISE, |
fffd0934 JB |
1636 | mac_addr, &key.p); |
1637 | wdev_unlock(dev->ieee80211_ptr); | |
41ade00f | 1638 | |
41ade00f JB |
1639 | return err; |
1640 | } | |
1641 | ||
1642 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
1643 | { | |
4c476991 | 1644 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 1645 | int err; |
4c476991 | 1646 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 1647 | u8 *mac_addr = NULL; |
b9454e83 | 1648 | struct key_parse key; |
41ade00f | 1649 | |
b9454e83 JB |
1650 | err = nl80211_parse_key(info, &key); |
1651 | if (err) | |
1652 | return err; | |
41ade00f JB |
1653 | |
1654 | if (info->attrs[NL80211_ATTR_MAC]) | |
1655 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1656 | ||
e31b8213 JB |
1657 | if (key.type == -1) { |
1658 | if (mac_addr) | |
1659 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
1660 | else | |
1661 | key.type = NL80211_KEYTYPE_GROUP; | |
1662 | } | |
1663 | ||
1664 | /* for now */ | |
1665 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
1666 | key.type != NL80211_KEYTYPE_GROUP) | |
1667 | return -EINVAL; | |
1668 | ||
4c476991 JB |
1669 | if (!rdev->ops->del_key) |
1670 | return -EOPNOTSUPP; | |
41ade00f | 1671 | |
fffd0934 JB |
1672 | wdev_lock(dev->ieee80211_ptr); |
1673 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
e31b8213 JB |
1674 | |
1675 | if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr && | |
1676 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
1677 | err = -ENOENT; | |
1678 | ||
fffd0934 | 1679 | if (!err) |
e31b8213 JB |
1680 | err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, |
1681 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
1682 | mac_addr); | |
41ade00f | 1683 | |
3d23e349 | 1684 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 1685 | if (!err) { |
b9454e83 | 1686 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
08645126 | 1687 | dev->ieee80211_ptr->wext.default_key = -1; |
b9454e83 | 1688 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
08645126 JB |
1689 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
1690 | } | |
1691 | #endif | |
fffd0934 | 1692 | wdev_unlock(dev->ieee80211_ptr); |
08645126 | 1693 | |
41ade00f JB |
1694 | return err; |
1695 | } | |
1696 | ||
ed1b6cc7 JB |
1697 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
1698 | { | |
1699 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
1700 | struct beacon_parameters *info); | |
4c476991 JB |
1701 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1702 | struct net_device *dev = info->user_ptr[1]; | |
ed1b6cc7 JB |
1703 | struct beacon_parameters params; |
1704 | int haveinfo = 0; | |
1705 | ||
f4a11bb0 JB |
1706 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL])) |
1707 | return -EINVAL; | |
1708 | ||
074ac8df | 1709 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
1710 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
1711 | return -EOPNOTSUPP; | |
eec60b03 | 1712 | |
ed1b6cc7 JB |
1713 | switch (info->genlhdr->cmd) { |
1714 | case NL80211_CMD_NEW_BEACON: | |
1715 | /* these are required for NEW_BEACON */ | |
1716 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
1717 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
4c476991 JB |
1718 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) |
1719 | return -EINVAL; | |
ed1b6cc7 | 1720 | |
79c97e97 | 1721 | call = rdev->ops->add_beacon; |
ed1b6cc7 JB |
1722 | break; |
1723 | case NL80211_CMD_SET_BEACON: | |
79c97e97 | 1724 | call = rdev->ops->set_beacon; |
ed1b6cc7 JB |
1725 | break; |
1726 | default: | |
1727 | WARN_ON(1); | |
4c476991 | 1728 | return -EOPNOTSUPP; |
ed1b6cc7 JB |
1729 | } |
1730 | ||
4c476991 JB |
1731 | if (!call) |
1732 | return -EOPNOTSUPP; | |
ed1b6cc7 JB |
1733 | |
1734 | memset(¶ms, 0, sizeof(params)); | |
1735 | ||
1736 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
1737 | params.interval = | |
1738 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
1739 | haveinfo = 1; | |
1740 | } | |
1741 | ||
1742 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
1743 | params.dtim_period = | |
1744 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
1745 | haveinfo = 1; | |
1746 | } | |
1747 | ||
1748 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1749 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1750 | params.head_len = | |
1751 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1752 | haveinfo = 1; | |
1753 | } | |
1754 | ||
1755 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
1756 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1757 | params.tail_len = | |
1758 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1759 | haveinfo = 1; | |
1760 | } | |
1761 | ||
4c476991 JB |
1762 | if (!haveinfo) |
1763 | return -EINVAL; | |
3b85875a | 1764 | |
4c476991 | 1765 | return call(&rdev->wiphy, dev, ¶ms); |
ed1b6cc7 JB |
1766 | } |
1767 | ||
1768 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
1769 | { | |
4c476991 JB |
1770 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1771 | struct net_device *dev = info->user_ptr[1]; | |
ed1b6cc7 | 1772 | |
4c476991 JB |
1773 | if (!rdev->ops->del_beacon) |
1774 | return -EOPNOTSUPP; | |
ed1b6cc7 | 1775 | |
074ac8df | 1776 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
1777 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
1778 | return -EOPNOTSUPP; | |
3b85875a | 1779 | |
4c476991 | 1780 | return rdev->ops->del_beacon(&rdev->wiphy, dev); |
ed1b6cc7 JB |
1781 | } |
1782 | ||
5727ef1b JB |
1783 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
1784 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
1785 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
1786 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 1787 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
5727ef1b JB |
1788 | }; |
1789 | ||
eccb8e8f JB |
1790 | static int parse_station_flags(struct genl_info *info, |
1791 | struct station_parameters *params) | |
5727ef1b JB |
1792 | { |
1793 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 1794 | struct nlattr *nla; |
5727ef1b JB |
1795 | int flag; |
1796 | ||
eccb8e8f JB |
1797 | /* |
1798 | * Try parsing the new attribute first so userspace | |
1799 | * can specify both for older kernels. | |
1800 | */ | |
1801 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
1802 | if (nla) { | |
1803 | struct nl80211_sta_flag_update *sta_flags; | |
1804 | ||
1805 | sta_flags = nla_data(nla); | |
1806 | params->sta_flags_mask = sta_flags->mask; | |
1807 | params->sta_flags_set = sta_flags->set; | |
1808 | if ((params->sta_flags_mask | | |
1809 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
1810 | return -EINVAL; | |
1811 | return 0; | |
1812 | } | |
1813 | ||
1814 | /* if present, parse the old attribute */ | |
5727ef1b | 1815 | |
eccb8e8f | 1816 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
1817 | if (!nla) |
1818 | return 0; | |
1819 | ||
1820 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
1821 | nla, sta_flags_policy)) | |
1822 | return -EINVAL; | |
1823 | ||
eccb8e8f JB |
1824 | params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1; |
1825 | params->sta_flags_mask &= ~1; | |
5727ef1b JB |
1826 | |
1827 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
1828 | if (flags[flag]) | |
eccb8e8f | 1829 | params->sta_flags_set |= (1<<flag); |
5727ef1b JB |
1830 | |
1831 | return 0; | |
1832 | } | |
1833 | ||
fd5b74dc JB |
1834 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
1835 | int flags, struct net_device *dev, | |
98b62183 | 1836 | const u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
1837 | { |
1838 | void *hdr; | |
420e7fab HR |
1839 | struct nlattr *sinfoattr, *txrate; |
1840 | u16 bitrate; | |
fd5b74dc JB |
1841 | |
1842 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1843 | if (!hdr) | |
1844 | return -1; | |
1845 | ||
1846 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1847 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1848 | ||
f5ea9120 JB |
1849 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation); |
1850 | ||
2ec600d6 LCC |
1851 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
1852 | if (!sinfoattr) | |
fd5b74dc | 1853 | goto nla_put_failure; |
2ec600d6 LCC |
1854 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
1855 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
1856 | sinfo->inactive_time); | |
1857 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
1858 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
1859 | sinfo->rx_bytes); | |
1860 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
1861 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
1862 | sinfo->tx_bytes); | |
1863 | if (sinfo->filled & STATION_INFO_LLID) | |
1864 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
1865 | sinfo->llid); | |
1866 | if (sinfo->filled & STATION_INFO_PLID) | |
1867 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
1868 | sinfo->plid); | |
1869 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
1870 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
1871 | sinfo->plink_state); | |
420e7fab HR |
1872 | if (sinfo->filled & STATION_INFO_SIGNAL) |
1873 | NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, | |
1874 | sinfo->signal); | |
1875 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { | |
1876 | txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE); | |
1877 | if (!txrate) | |
1878 | goto nla_put_failure; | |
1879 | ||
254416aa JL |
1880 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ |
1881 | bitrate = cfg80211_calculate_bitrate(&sinfo->txrate); | |
420e7fab HR |
1882 | if (bitrate > 0) |
1883 | NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate); | |
2ec600d6 | 1884 | |
420e7fab HR |
1885 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS) |
1886 | NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, | |
1887 | sinfo->txrate.mcs); | |
1888 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) | |
1889 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH); | |
1890 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI) | |
1891 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI); | |
1892 | ||
1893 | nla_nest_end(msg, txrate); | |
1894 | } | |
98c8a60a JM |
1895 | if (sinfo->filled & STATION_INFO_RX_PACKETS) |
1896 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS, | |
1897 | sinfo->rx_packets); | |
1898 | if (sinfo->filled & STATION_INFO_TX_PACKETS) | |
1899 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS, | |
1900 | sinfo->tx_packets); | |
b206b4ef BR |
1901 | if (sinfo->filled & STATION_INFO_TX_RETRIES) |
1902 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES, | |
1903 | sinfo->tx_retries); | |
1904 | if (sinfo->filled & STATION_INFO_TX_FAILED) | |
1905 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED, | |
1906 | sinfo->tx_failed); | |
2ec600d6 | 1907 | nla_nest_end(msg, sinfoattr); |
fd5b74dc JB |
1908 | |
1909 | return genlmsg_end(msg, hdr); | |
1910 | ||
1911 | nla_put_failure: | |
bc3ed28c TG |
1912 | genlmsg_cancel(msg, hdr); |
1913 | return -EMSGSIZE; | |
fd5b74dc JB |
1914 | } |
1915 | ||
2ec600d6 | 1916 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 1917 | struct netlink_callback *cb) |
2ec600d6 | 1918 | { |
2ec600d6 LCC |
1919 | struct station_info sinfo; |
1920 | struct cfg80211_registered_device *dev; | |
bba95fef | 1921 | struct net_device *netdev; |
2ec600d6 | 1922 | u8 mac_addr[ETH_ALEN]; |
bba95fef | 1923 | int sta_idx = cb->args[1]; |
2ec600d6 | 1924 | int err; |
2ec600d6 | 1925 | |
67748893 JB |
1926 | err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
1927 | if (err) | |
1928 | return err; | |
bba95fef JB |
1929 | |
1930 | if (!dev->ops->dump_station) { | |
eec60b03 | 1931 | err = -EOPNOTSUPP; |
bba95fef JB |
1932 | goto out_err; |
1933 | } | |
1934 | ||
bba95fef JB |
1935 | while (1) { |
1936 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, | |
1937 | mac_addr, &sinfo); | |
1938 | if (err == -ENOENT) | |
1939 | break; | |
1940 | if (err) | |
3b85875a | 1941 | goto out_err; |
bba95fef JB |
1942 | |
1943 | if (nl80211_send_station(skb, | |
1944 | NETLINK_CB(cb->skb).pid, | |
1945 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1946 | netdev, mac_addr, | |
1947 | &sinfo) < 0) | |
1948 | goto out; | |
1949 | ||
1950 | sta_idx++; | |
1951 | } | |
1952 | ||
1953 | ||
1954 | out: | |
1955 | cb->args[1] = sta_idx; | |
1956 | err = skb->len; | |
bba95fef | 1957 | out_err: |
67748893 | 1958 | nl80211_finish_netdev_dump(dev); |
bba95fef JB |
1959 | |
1960 | return err; | |
2ec600d6 | 1961 | } |
fd5b74dc | 1962 | |
5727ef1b JB |
1963 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
1964 | { | |
4c476991 JB |
1965 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1966 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 | 1967 | struct station_info sinfo; |
fd5b74dc JB |
1968 | struct sk_buff *msg; |
1969 | u8 *mac_addr = NULL; | |
4c476991 | 1970 | int err; |
fd5b74dc | 1971 | |
2ec600d6 | 1972 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
1973 | |
1974 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1975 | return -EINVAL; | |
1976 | ||
1977 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1978 | ||
4c476991 JB |
1979 | if (!rdev->ops->get_station) |
1980 | return -EOPNOTSUPP; | |
3b85875a | 1981 | |
4c476991 | 1982 | err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo); |
fd5b74dc | 1983 | if (err) |
4c476991 | 1984 | return err; |
2ec600d6 | 1985 | |
fd2120ca | 1986 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc | 1987 | if (!msg) |
4c476991 | 1988 | return -ENOMEM; |
fd5b74dc JB |
1989 | |
1990 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
4c476991 JB |
1991 | dev, mac_addr, &sinfo) < 0) { |
1992 | nlmsg_free(msg); | |
1993 | return -ENOBUFS; | |
1994 | } | |
3b85875a | 1995 | |
4c476991 | 1996 | return genlmsg_reply(msg, info); |
5727ef1b JB |
1997 | } |
1998 | ||
1999 | /* | |
c258d2de | 2000 | * Get vlan interface making sure it is running and on the right wiphy. |
5727ef1b | 2001 | */ |
463d0183 | 2002 | static int get_vlan(struct genl_info *info, |
5727ef1b JB |
2003 | struct cfg80211_registered_device *rdev, |
2004 | struct net_device **vlan) | |
2005 | { | |
463d0183 | 2006 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
5727ef1b JB |
2007 | *vlan = NULL; |
2008 | ||
2009 | if (vlanattr) { | |
463d0183 JB |
2010 | *vlan = dev_get_by_index(genl_info_net(info), |
2011 | nla_get_u32(vlanattr)); | |
5727ef1b JB |
2012 | if (!*vlan) |
2013 | return -ENODEV; | |
2014 | if (!(*vlan)->ieee80211_ptr) | |
2015 | return -EINVAL; | |
2016 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
2017 | return -EINVAL; | |
c258d2de FF |
2018 | if (!netif_running(*vlan)) |
2019 | return -ENETDOWN; | |
5727ef1b JB |
2020 | } |
2021 | return 0; | |
2022 | } | |
2023 | ||
2024 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
2025 | { | |
4c476991 | 2026 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 2027 | int err; |
4c476991 | 2028 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
2029 | struct station_parameters params; |
2030 | u8 *mac_addr = NULL; | |
2031 | ||
2032 | memset(¶ms, 0, sizeof(params)); | |
2033 | ||
2034 | params.listen_interval = -1; | |
2035 | ||
2036 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
2037 | return -EINVAL; | |
2038 | ||
2039 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2040 | return -EINVAL; | |
2041 | ||
2042 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2043 | ||
2044 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
2045 | params.supported_rates = | |
2046 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2047 | params.supported_rates_len = | |
2048 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2049 | } | |
2050 | ||
2051 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
2052 | params.listen_interval = | |
2053 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
2054 | ||
36aedc90 JM |
2055 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2056 | params.ht_capa = | |
2057 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
2058 | ||
eccb8e8f | 2059 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
2060 | return -EINVAL; |
2061 | ||
2ec600d6 LCC |
2062 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
2063 | params.plink_action = | |
2064 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
2065 | ||
463d0183 | 2066 | err = get_vlan(info, rdev, ¶ms.vlan); |
a97f4424 | 2067 | if (err) |
034d655e | 2068 | goto out; |
a97f4424 JB |
2069 | |
2070 | /* validate settings */ | |
2071 | err = 0; | |
2072 | ||
2073 | switch (dev->ieee80211_ptr->iftype) { | |
2074 | case NL80211_IFTYPE_AP: | |
2075 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 2076 | case NL80211_IFTYPE_P2P_GO: |
a97f4424 JB |
2077 | /* disallow mesh-specific things */ |
2078 | if (params.plink_action) | |
2079 | err = -EINVAL; | |
2080 | break; | |
074ac8df | 2081 | case NL80211_IFTYPE_P2P_CLIENT: |
a97f4424 JB |
2082 | case NL80211_IFTYPE_STATION: |
2083 | /* disallow everything but AUTHORIZED flag */ | |
2084 | if (params.plink_action) | |
2085 | err = -EINVAL; | |
2086 | if (params.vlan) | |
2087 | err = -EINVAL; | |
2088 | if (params.supported_rates) | |
2089 | err = -EINVAL; | |
2090 | if (params.ht_capa) | |
2091 | err = -EINVAL; | |
2092 | if (params.listen_interval >= 0) | |
2093 | err = -EINVAL; | |
2094 | if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
2095 | err = -EINVAL; | |
2096 | break; | |
2097 | case NL80211_IFTYPE_MESH_POINT: | |
2098 | /* disallow things mesh doesn't support */ | |
2099 | if (params.vlan) | |
2100 | err = -EINVAL; | |
2101 | if (params.ht_capa) | |
2102 | err = -EINVAL; | |
2103 | if (params.listen_interval >= 0) | |
2104 | err = -EINVAL; | |
2105 | if (params.supported_rates) | |
2106 | err = -EINVAL; | |
2107 | if (params.sta_flags_mask) | |
2108 | err = -EINVAL; | |
2109 | break; | |
2110 | default: | |
2111 | err = -EINVAL; | |
034d655e JB |
2112 | } |
2113 | ||
5727ef1b JB |
2114 | if (err) |
2115 | goto out; | |
2116 | ||
79c97e97 | 2117 | if (!rdev->ops->change_station) { |
5727ef1b JB |
2118 | err = -EOPNOTSUPP; |
2119 | goto out; | |
2120 | } | |
2121 | ||
79c97e97 | 2122 | err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
2123 | |
2124 | out: | |
2125 | if (params.vlan) | |
2126 | dev_put(params.vlan); | |
3b85875a | 2127 | |
5727ef1b JB |
2128 | return err; |
2129 | } | |
2130 | ||
2131 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
2132 | { | |
4c476991 | 2133 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 2134 | int err; |
4c476991 | 2135 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
2136 | struct station_parameters params; |
2137 | u8 *mac_addr = NULL; | |
2138 | ||
2139 | memset(¶ms, 0, sizeof(params)); | |
2140 | ||
2141 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2142 | return -EINVAL; | |
2143 | ||
5727ef1b JB |
2144 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
2145 | return -EINVAL; | |
2146 | ||
2147 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
2148 | return -EINVAL; | |
2149 | ||
0e956c13 TLSC |
2150 | if (!info->attrs[NL80211_ATTR_STA_AID]) |
2151 | return -EINVAL; | |
2152 | ||
5727ef1b JB |
2153 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
2154 | params.supported_rates = | |
2155 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2156 | params.supported_rates_len = | |
2157 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2158 | params.listen_interval = | |
2159 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 2160 | |
0e956c13 TLSC |
2161 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
2162 | if (!params.aid || params.aid > IEEE80211_MAX_AID) | |
2163 | return -EINVAL; | |
51b50fbe | 2164 | |
36aedc90 JM |
2165 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2166 | params.ht_capa = | |
2167 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 2168 | |
eccb8e8f | 2169 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
2170 | return -EINVAL; |
2171 | ||
0e956c13 | 2172 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
074ac8df | 2173 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
4c476991 JB |
2174 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2175 | return -EINVAL; | |
0e956c13 | 2176 | |
463d0183 | 2177 | err = get_vlan(info, rdev, ¶ms.vlan); |
a97f4424 | 2178 | if (err) |
e80cf853 | 2179 | goto out; |
a97f4424 JB |
2180 | |
2181 | /* validate settings */ | |
2182 | err = 0; | |
2183 | ||
79c97e97 | 2184 | if (!rdev->ops->add_station) { |
5727ef1b JB |
2185 | err = -EOPNOTSUPP; |
2186 | goto out; | |
2187 | } | |
2188 | ||
79c97e97 | 2189 | err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
2190 | |
2191 | out: | |
2192 | if (params.vlan) | |
2193 | dev_put(params.vlan); | |
5727ef1b JB |
2194 | return err; |
2195 | } | |
2196 | ||
2197 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
2198 | { | |
4c476991 JB |
2199 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2200 | struct net_device *dev = info->user_ptr[1]; | |
5727ef1b JB |
2201 | u8 *mac_addr = NULL; |
2202 | ||
2203 | if (info->attrs[NL80211_ATTR_MAC]) | |
2204 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2205 | ||
e80cf853 | 2206 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
d5d9de02 | 2207 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
074ac8df | 2208 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
4c476991 JB |
2209 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2210 | return -EINVAL; | |
5727ef1b | 2211 | |
4c476991 JB |
2212 | if (!rdev->ops->del_station) |
2213 | return -EOPNOTSUPP; | |
3b85875a | 2214 | |
4c476991 | 2215 | return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr); |
5727ef1b JB |
2216 | } |
2217 | ||
2ec600d6 LCC |
2218 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
2219 | int flags, struct net_device *dev, | |
2220 | u8 *dst, u8 *next_hop, | |
2221 | struct mpath_info *pinfo) | |
2222 | { | |
2223 | void *hdr; | |
2224 | struct nlattr *pinfoattr; | |
2225 | ||
2226 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
2227 | if (!hdr) | |
2228 | return -1; | |
2229 | ||
2230 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2231 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
2232 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
2233 | ||
f5ea9120 JB |
2234 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation); |
2235 | ||
2ec600d6 LCC |
2236 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
2237 | if (!pinfoattr) | |
2238 | goto nla_put_failure; | |
2239 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
2240 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
2241 | pinfo->frame_qlen); | |
d19b3bf6 RP |
2242 | if (pinfo->filled & MPATH_INFO_SN) |
2243 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN, | |
2244 | pinfo->sn); | |
2ec600d6 LCC |
2245 | if (pinfo->filled & MPATH_INFO_METRIC) |
2246 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
2247 | pinfo->metric); | |
2248 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
2249 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
2250 | pinfo->exptime); | |
2251 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
2252 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
2253 | pinfo->flags); | |
2254 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
2255 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
2256 | pinfo->discovery_timeout); | |
2257 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
2258 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
2259 | pinfo->discovery_retries); | |
2260 | ||
2261 | nla_nest_end(msg, pinfoattr); | |
2262 | ||
2263 | return genlmsg_end(msg, hdr); | |
2264 | ||
2265 | nla_put_failure: | |
bc3ed28c TG |
2266 | genlmsg_cancel(msg, hdr); |
2267 | return -EMSGSIZE; | |
2ec600d6 LCC |
2268 | } |
2269 | ||
2270 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 2271 | struct netlink_callback *cb) |
2ec600d6 | 2272 | { |
2ec600d6 LCC |
2273 | struct mpath_info pinfo; |
2274 | struct cfg80211_registered_device *dev; | |
bba95fef | 2275 | struct net_device *netdev; |
2ec600d6 LCC |
2276 | u8 dst[ETH_ALEN]; |
2277 | u8 next_hop[ETH_ALEN]; | |
bba95fef | 2278 | int path_idx = cb->args[1]; |
2ec600d6 | 2279 | int err; |
2ec600d6 | 2280 | |
67748893 JB |
2281 | err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
2282 | if (err) | |
2283 | return err; | |
bba95fef JB |
2284 | |
2285 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 2286 | err = -EOPNOTSUPP; |
bba95fef JB |
2287 | goto out_err; |
2288 | } | |
2289 | ||
eec60b03 JM |
2290 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2291 | err = -EOPNOTSUPP; | |
0448b5fc | 2292 | goto out_err; |
eec60b03 JM |
2293 | } |
2294 | ||
bba95fef JB |
2295 | while (1) { |
2296 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, | |
2297 | dst, next_hop, &pinfo); | |
2298 | if (err == -ENOENT) | |
2ec600d6 | 2299 | break; |
bba95fef | 2300 | if (err) |
3b85875a | 2301 | goto out_err; |
2ec600d6 | 2302 | |
bba95fef JB |
2303 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, |
2304 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2305 | netdev, dst, next_hop, | |
2306 | &pinfo) < 0) | |
2307 | goto out; | |
2ec600d6 | 2308 | |
bba95fef | 2309 | path_idx++; |
2ec600d6 | 2310 | } |
2ec600d6 | 2311 | |
2ec600d6 | 2312 | |
bba95fef JB |
2313 | out: |
2314 | cb->args[1] = path_idx; | |
2315 | err = skb->len; | |
bba95fef | 2316 | out_err: |
67748893 | 2317 | nl80211_finish_netdev_dump(dev); |
bba95fef | 2318 | return err; |
2ec600d6 LCC |
2319 | } |
2320 | ||
2321 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
2322 | { | |
4c476991 | 2323 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 2324 | int err; |
4c476991 | 2325 | struct net_device *dev = info->user_ptr[1]; |
2ec600d6 LCC |
2326 | struct mpath_info pinfo; |
2327 | struct sk_buff *msg; | |
2328 | u8 *dst = NULL; | |
2329 | u8 next_hop[ETH_ALEN]; | |
2330 | ||
2331 | memset(&pinfo, 0, sizeof(pinfo)); | |
2332 | ||
2333 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2334 | return -EINVAL; | |
2335 | ||
2336 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2337 | ||
4c476991 JB |
2338 | if (!rdev->ops->get_mpath) |
2339 | return -EOPNOTSUPP; | |
2ec600d6 | 2340 | |
4c476991 JB |
2341 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
2342 | return -EOPNOTSUPP; | |
eec60b03 | 2343 | |
79c97e97 | 2344 | err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo); |
2ec600d6 | 2345 | if (err) |
4c476991 | 2346 | return err; |
2ec600d6 | 2347 | |
fd2120ca | 2348 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 | 2349 | if (!msg) |
4c476991 | 2350 | return -ENOMEM; |
2ec600d6 LCC |
2351 | |
2352 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
4c476991 JB |
2353 | dev, dst, next_hop, &pinfo) < 0) { |
2354 | nlmsg_free(msg); | |
2355 | return -ENOBUFS; | |
2356 | } | |
3b85875a | 2357 | |
4c476991 | 2358 | return genlmsg_reply(msg, info); |
2ec600d6 LCC |
2359 | } |
2360 | ||
2361 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
2362 | { | |
4c476991 JB |
2363 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2364 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
2365 | u8 *dst = NULL; |
2366 | u8 *next_hop = NULL; | |
2367 | ||
2368 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2369 | return -EINVAL; | |
2370 | ||
2371 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2372 | return -EINVAL; | |
2373 | ||
2374 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2375 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2376 | ||
4c476991 JB |
2377 | if (!rdev->ops->change_mpath) |
2378 | return -EOPNOTSUPP; | |
35a8efe1 | 2379 | |
4c476991 JB |
2380 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
2381 | return -EOPNOTSUPP; | |
2ec600d6 | 2382 | |
4c476991 | 2383 | return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 | 2384 | } |
4c476991 | 2385 | |
2ec600d6 LCC |
2386 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) |
2387 | { | |
4c476991 JB |
2388 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2389 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
2390 | u8 *dst = NULL; |
2391 | u8 *next_hop = NULL; | |
2392 | ||
2393 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2394 | return -EINVAL; | |
2395 | ||
2396 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2397 | return -EINVAL; | |
2398 | ||
2399 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2400 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2401 | ||
4c476991 JB |
2402 | if (!rdev->ops->add_mpath) |
2403 | return -EOPNOTSUPP; | |
35a8efe1 | 2404 | |
4c476991 JB |
2405 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
2406 | return -EOPNOTSUPP; | |
2ec600d6 | 2407 | |
4c476991 | 2408 | return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
2409 | } |
2410 | ||
2411 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
2412 | { | |
4c476991 JB |
2413 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2414 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
2415 | u8 *dst = NULL; |
2416 | ||
2417 | if (info->attrs[NL80211_ATTR_MAC]) | |
2418 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2419 | ||
4c476991 JB |
2420 | if (!rdev->ops->del_mpath) |
2421 | return -EOPNOTSUPP; | |
3b85875a | 2422 | |
4c476991 | 2423 | return rdev->ops->del_mpath(&rdev->wiphy, dev, dst); |
2ec600d6 LCC |
2424 | } |
2425 | ||
9f1ba906 JM |
2426 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
2427 | { | |
4c476991 JB |
2428 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2429 | struct net_device *dev = info->user_ptr[1]; | |
9f1ba906 JM |
2430 | struct bss_parameters params; |
2431 | ||
2432 | memset(¶ms, 0, sizeof(params)); | |
2433 | /* default to not changing parameters */ | |
2434 | params.use_cts_prot = -1; | |
2435 | params.use_short_preamble = -1; | |
2436 | params.use_short_slot_time = -1; | |
fd8aaaf3 | 2437 | params.ap_isolate = -1; |
9f1ba906 JM |
2438 | |
2439 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
2440 | params.use_cts_prot = | |
2441 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
2442 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
2443 | params.use_short_preamble = | |
2444 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
2445 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
2446 | params.use_short_slot_time = | |
2447 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
2448 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
2449 | params.basic_rates = | |
2450 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2451 | params.basic_rates_len = | |
2452 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2453 | } | |
fd8aaaf3 FF |
2454 | if (info->attrs[NL80211_ATTR_AP_ISOLATE]) |
2455 | params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); | |
9f1ba906 | 2456 | |
4c476991 JB |
2457 | if (!rdev->ops->change_bss) |
2458 | return -EOPNOTSUPP; | |
9f1ba906 | 2459 | |
074ac8df | 2460 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
2461 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2462 | return -EOPNOTSUPP; | |
3b85875a | 2463 | |
4c476991 | 2464 | return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms); |
9f1ba906 JM |
2465 | } |
2466 | ||
b54452b0 | 2467 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { |
b2e1b302 LR |
2468 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, |
2469 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
2470 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
2471 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
2472 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
2473 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
2474 | }; | |
2475 | ||
2476 | static int parse_reg_rule(struct nlattr *tb[], | |
2477 | struct ieee80211_reg_rule *reg_rule) | |
2478 | { | |
2479 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
2480 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
2481 | ||
2482 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
2483 | return -EINVAL; | |
2484 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
2485 | return -EINVAL; | |
2486 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
2487 | return -EINVAL; | |
2488 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
2489 | return -EINVAL; | |
2490 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
2491 | return -EINVAL; | |
2492 | ||
2493 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
2494 | ||
2495 | freq_range->start_freq_khz = | |
2496 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
2497 | freq_range->end_freq_khz = | |
2498 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
2499 | freq_range->max_bandwidth_khz = | |
2500 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
2501 | ||
2502 | power_rule->max_eirp = | |
2503 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
2504 | ||
2505 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
2506 | power_rule->max_antenna_gain = | |
2507 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
2508 | ||
2509 | return 0; | |
2510 | } | |
2511 | ||
2512 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
2513 | { | |
2514 | int r; | |
2515 | char *data = NULL; | |
2516 | ||
80778f18 LR |
2517 | /* |
2518 | * You should only get this when cfg80211 hasn't yet initialized | |
2519 | * completely when built-in to the kernel right between the time | |
2520 | * window between nl80211_init() and regulatory_init(), if that is | |
2521 | * even possible. | |
2522 | */ | |
2523 | mutex_lock(&cfg80211_mutex); | |
2524 | if (unlikely(!cfg80211_regdomain)) { | |
fe33eb39 LR |
2525 | mutex_unlock(&cfg80211_mutex); |
2526 | return -EINPROGRESS; | |
80778f18 | 2527 | } |
fe33eb39 | 2528 | mutex_unlock(&cfg80211_mutex); |
80778f18 | 2529 | |
fe33eb39 LR |
2530 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
2531 | return -EINVAL; | |
b2e1b302 LR |
2532 | |
2533 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2534 | ||
fe33eb39 LR |
2535 | r = regulatory_hint_user(data); |
2536 | ||
b2e1b302 LR |
2537 | return r; |
2538 | } | |
2539 | ||
93da9cc1 | 2540 | static int nl80211_get_mesh_params(struct sk_buff *skb, |
2541 | struct genl_info *info) | |
2542 | { | |
4c476991 | 2543 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
93da9cc1 | 2544 | struct mesh_config cur_params; |
2545 | int err; | |
4c476991 | 2546 | struct net_device *dev = info->user_ptr[1]; |
93da9cc1 | 2547 | void *hdr; |
2548 | struct nlattr *pinfoattr; | |
2549 | struct sk_buff *msg; | |
2550 | ||
4c476991 JB |
2551 | if (!rdev->ops->get_mesh_params) |
2552 | return -EOPNOTSUPP; | |
f3f92586 | 2553 | |
93da9cc1 | 2554 | /* Get the mesh params */ |
79c97e97 | 2555 | err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params); |
93da9cc1 | 2556 | if (err) |
4c476991 | 2557 | return err; |
93da9cc1 | 2558 | |
2559 | /* Draw up a netlink message to send back */ | |
fd2120ca | 2560 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
2561 | if (!msg) |
2562 | return -ENOMEM; | |
93da9cc1 | 2563 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, |
2564 | NL80211_CMD_GET_MESH_PARAMS); | |
2565 | if (!hdr) | |
2566 | goto nla_put_failure; | |
2567 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS); | |
2568 | if (!pinfoattr) | |
2569 | goto nla_put_failure; | |
2570 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2571 | NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
2572 | cur_params.dot11MeshRetryTimeout); | |
2573 | NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
2574 | cur_params.dot11MeshConfirmTimeout); | |
2575 | NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
2576 | cur_params.dot11MeshHoldingTimeout); | |
2577 | NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
2578 | cur_params.dot11MeshMaxPeerLinks); | |
2579 | NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
2580 | cur_params.dot11MeshMaxRetries); | |
2581 | NLA_PUT_U8(msg, NL80211_MESHCONF_TTL, | |
2582 | cur_params.dot11MeshTTL); | |
2583 | NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
2584 | cur_params.auto_open_plinks); | |
2585 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2586 | cur_params.dot11MeshHWMPmaxPREQretries); | |
2587 | NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
2588 | cur_params.path_refresh_time); | |
2589 | NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2590 | cur_params.min_discovery_timeout); | |
2591 | NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2592 | cur_params.dot11MeshHWMPactivePathTimeout); | |
2593 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2594 | cur_params.dot11MeshHWMPpreqMinInterval); | |
2595 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2596 | cur_params.dot11MeshHWMPnetDiameterTraversalTime); | |
63c5723b RP |
2597 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, |
2598 | cur_params.dot11MeshHWMPRootMode); | |
93da9cc1 | 2599 | nla_nest_end(msg, pinfoattr); |
2600 | genlmsg_end(msg, hdr); | |
4c476991 | 2601 | return genlmsg_reply(msg, info); |
93da9cc1 | 2602 | |
3b85875a | 2603 | nla_put_failure: |
93da9cc1 | 2604 | genlmsg_cancel(msg, hdr); |
d080e275 | 2605 | nlmsg_free(msg); |
4c476991 | 2606 | return -ENOBUFS; |
93da9cc1 | 2607 | } |
2608 | ||
2609 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ | |
2610 | do {\ | |
2611 | if (table[attr_num]) {\ | |
2612 | cfg.param = nla_fn(table[attr_num]); \ | |
2613 | mask |= (1 << (attr_num - 1)); \ | |
2614 | } \ | |
2615 | } while (0);\ | |
2616 | ||
b54452b0 | 2617 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { |
93da9cc1 | 2618 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, |
2619 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
2620 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
2621 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
2622 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
2623 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
2624 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, | |
2625 | ||
2626 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
2627 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
2628 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
2629 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
2630 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
2631 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, | |
2632 | }; | |
2633 | ||
2634 | static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info) | |
2635 | { | |
93da9cc1 | 2636 | u32 mask; |
4c476991 JB |
2637 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2638 | struct net_device *dev = info->user_ptr[1]; | |
93da9cc1 | 2639 | struct mesh_config cfg; |
2640 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; | |
2641 | struct nlattr *parent_attr; | |
2642 | ||
2643 | parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS]; | |
2644 | if (!parent_attr) | |
2645 | return -EINVAL; | |
2646 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
2647 | parent_attr, nl80211_meshconf_params_policy)) | |
2648 | return -EINVAL; | |
2649 | ||
4c476991 JB |
2650 | if (!rdev->ops->set_mesh_params) |
2651 | return -EOPNOTSUPP; | |
f3f92586 | 2652 | |
93da9cc1 | 2653 | /* This makes sure that there aren't more than 32 mesh config |
2654 | * parameters (otherwise our bitfield scheme would not work.) */ | |
2655 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
2656 | ||
2657 | /* Fill in the params struct */ | |
2658 | mask = 0; | |
2659 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, | |
2660 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); | |
2661 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, | |
2662 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16); | |
2663 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, | |
2664 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16); | |
2665 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, | |
2666 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16); | |
2667 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, | |
2668 | mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); | |
2669 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, | |
2670 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
2671 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, | |
2672 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8); | |
2673 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, | |
2674 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2675 | nla_get_u8); | |
2676 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, | |
2677 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32); | |
2678 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, | |
2679 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2680 | nla_get_u16); | |
2681 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, | |
2682 | mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2683 | nla_get_u32); | |
2684 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
2685 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2686 | nla_get_u16); | |
2687 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
2688 | dot11MeshHWMPnetDiameterTraversalTime, | |
2689 | mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2690 | nla_get_u16); | |
63c5723b RP |
2691 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
2692 | dot11MeshHWMPRootMode, mask, | |
2693 | NL80211_MESHCONF_HWMP_ROOTMODE, | |
2694 | nla_get_u8); | |
93da9cc1 | 2695 | |
2696 | /* Apply changes */ | |
4c476991 | 2697 | return rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask); |
93da9cc1 | 2698 | } |
2699 | ||
2700 | #undef FILL_IN_MESH_PARAM_IF_SET | |
2701 | ||
f130347c LR |
2702 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
2703 | { | |
2704 | struct sk_buff *msg; | |
2705 | void *hdr = NULL; | |
2706 | struct nlattr *nl_reg_rules; | |
2707 | unsigned int i; | |
2708 | int err = -EINVAL; | |
2709 | ||
a1794390 | 2710 | mutex_lock(&cfg80211_mutex); |
f130347c LR |
2711 | |
2712 | if (!cfg80211_regdomain) | |
2713 | goto out; | |
2714 | ||
fd2120ca | 2715 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
f130347c LR |
2716 | if (!msg) { |
2717 | err = -ENOBUFS; | |
2718 | goto out; | |
2719 | } | |
2720 | ||
2721 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2722 | NL80211_CMD_GET_REG); | |
2723 | if (!hdr) | |
2724 | goto nla_put_failure; | |
2725 | ||
2726 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, | |
2727 | cfg80211_regdomain->alpha2); | |
2728 | ||
2729 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); | |
2730 | if (!nl_reg_rules) | |
2731 | goto nla_put_failure; | |
2732 | ||
2733 | for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) { | |
2734 | struct nlattr *nl_reg_rule; | |
2735 | const struct ieee80211_reg_rule *reg_rule; | |
2736 | const struct ieee80211_freq_range *freq_range; | |
2737 | const struct ieee80211_power_rule *power_rule; | |
2738 | ||
2739 | reg_rule = &cfg80211_regdomain->reg_rules[i]; | |
2740 | freq_range = ®_rule->freq_range; | |
2741 | power_rule = ®_rule->power_rule; | |
2742 | ||
2743 | nl_reg_rule = nla_nest_start(msg, i); | |
2744 | if (!nl_reg_rule) | |
2745 | goto nla_put_failure; | |
2746 | ||
2747 | NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS, | |
2748 | reg_rule->flags); | |
2749 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
2750 | freq_range->start_freq_khz); | |
2751 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
2752 | freq_range->end_freq_khz); | |
2753 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
2754 | freq_range->max_bandwidth_khz); | |
2755 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
2756 | power_rule->max_antenna_gain); | |
2757 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
2758 | power_rule->max_eirp); | |
2759 | ||
2760 | nla_nest_end(msg, nl_reg_rule); | |
2761 | } | |
2762 | ||
2763 | nla_nest_end(msg, nl_reg_rules); | |
2764 | ||
2765 | genlmsg_end(msg, hdr); | |
134e6375 | 2766 | err = genlmsg_reply(msg, info); |
f130347c LR |
2767 | goto out; |
2768 | ||
2769 | nla_put_failure: | |
2770 | genlmsg_cancel(msg, hdr); | |
d080e275 | 2771 | nlmsg_free(msg); |
f130347c LR |
2772 | err = -EMSGSIZE; |
2773 | out: | |
a1794390 | 2774 | mutex_unlock(&cfg80211_mutex); |
f130347c LR |
2775 | return err; |
2776 | } | |
2777 | ||
b2e1b302 LR |
2778 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
2779 | { | |
2780 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
2781 | struct nlattr *nl_reg_rule; | |
2782 | char *alpha2 = NULL; | |
2783 | int rem_reg_rules = 0, r = 0; | |
2784 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
2785 | struct ieee80211_regdomain *rd = NULL; | |
2786 | ||
2787 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
2788 | return -EINVAL; | |
2789 | ||
2790 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
2791 | return -EINVAL; | |
2792 | ||
2793 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2794 | ||
2795 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2796 | rem_reg_rules) { | |
2797 | num_rules++; | |
2798 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4776c6e7 | 2799 | return -EINVAL; |
b2e1b302 LR |
2800 | } |
2801 | ||
61405e97 LR |
2802 | mutex_lock(&cfg80211_mutex); |
2803 | ||
d0e18f83 LR |
2804 | if (!reg_is_valid_request(alpha2)) { |
2805 | r = -EINVAL; | |
2806 | goto bad_reg; | |
2807 | } | |
b2e1b302 LR |
2808 | |
2809 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
2810 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
2811 | ||
2812 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
d0e18f83 LR |
2813 | if (!rd) { |
2814 | r = -ENOMEM; | |
2815 | goto bad_reg; | |
2816 | } | |
b2e1b302 LR |
2817 | |
2818 | rd->n_reg_rules = num_rules; | |
2819 | rd->alpha2[0] = alpha2[0]; | |
2820 | rd->alpha2[1] = alpha2[1]; | |
2821 | ||
2822 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2823 | rem_reg_rules) { | |
2824 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
2825 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
2826 | reg_rule_policy); | |
2827 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
2828 | if (r) | |
2829 | goto bad_reg; | |
2830 | ||
2831 | rule_idx++; | |
2832 | ||
d0e18f83 LR |
2833 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
2834 | r = -EINVAL; | |
b2e1b302 | 2835 | goto bad_reg; |
d0e18f83 | 2836 | } |
b2e1b302 LR |
2837 | } |
2838 | ||
2839 | BUG_ON(rule_idx != num_rules); | |
2840 | ||
b2e1b302 | 2841 | r = set_regdom(rd); |
61405e97 | 2842 | |
a1794390 | 2843 | mutex_unlock(&cfg80211_mutex); |
d0e18f83 | 2844 | |
b2e1b302 LR |
2845 | return r; |
2846 | ||
d2372b31 | 2847 | bad_reg: |
61405e97 | 2848 | mutex_unlock(&cfg80211_mutex); |
b2e1b302 | 2849 | kfree(rd); |
d0e18f83 | 2850 | return r; |
b2e1b302 LR |
2851 | } |
2852 | ||
83f5e2cf JB |
2853 | static int validate_scan_freqs(struct nlattr *freqs) |
2854 | { | |
2855 | struct nlattr *attr1, *attr2; | |
2856 | int n_channels = 0, tmp1, tmp2; | |
2857 | ||
2858 | nla_for_each_nested(attr1, freqs, tmp1) { | |
2859 | n_channels++; | |
2860 | /* | |
2861 | * Some hardware has a limited channel list for | |
2862 | * scanning, and it is pretty much nonsensical | |
2863 | * to scan for a channel twice, so disallow that | |
2864 | * and don't require drivers to check that the | |
2865 | * channel list they get isn't longer than what | |
2866 | * they can scan, as long as they can scan all | |
2867 | * the channels they registered at once. | |
2868 | */ | |
2869 | nla_for_each_nested(attr2, freqs, tmp2) | |
2870 | if (attr1 != attr2 && | |
2871 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
2872 | return 0; | |
2873 | } | |
2874 | ||
2875 | return n_channels; | |
2876 | } | |
2877 | ||
2a519311 JB |
2878 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
2879 | { | |
4c476991 JB |
2880 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2881 | struct net_device *dev = info->user_ptr[1]; | |
2a519311 JB |
2882 | struct cfg80211_scan_request *request; |
2883 | struct cfg80211_ssid *ssid; | |
2884 | struct ieee80211_channel *channel; | |
2885 | struct nlattr *attr; | |
2886 | struct wiphy *wiphy; | |
83f5e2cf | 2887 | int err, tmp, n_ssids = 0, n_channels, i; |
2a519311 | 2888 | enum ieee80211_band band; |
70692ad2 | 2889 | size_t ie_len; |
2a519311 | 2890 | |
f4a11bb0 JB |
2891 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
2892 | return -EINVAL; | |
2893 | ||
79c97e97 | 2894 | wiphy = &rdev->wiphy; |
2a519311 | 2895 | |
4c476991 JB |
2896 | if (!rdev->ops->scan) |
2897 | return -EOPNOTSUPP; | |
2a519311 | 2898 | |
4c476991 JB |
2899 | if (rdev->scan_req) |
2900 | return -EBUSY; | |
2a519311 JB |
2901 | |
2902 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
83f5e2cf JB |
2903 | n_channels = validate_scan_freqs( |
2904 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
4c476991 JB |
2905 | if (!n_channels) |
2906 | return -EINVAL; | |
2a519311 | 2907 | } else { |
83f5e2cf JB |
2908 | n_channels = 0; |
2909 | ||
2a519311 JB |
2910 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) |
2911 | if (wiphy->bands[band]) | |
2912 | n_channels += wiphy->bands[band]->n_channels; | |
2913 | } | |
2914 | ||
2915 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
2916 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
2917 | n_ssids++; | |
2918 | ||
4c476991 JB |
2919 | if (n_ssids > wiphy->max_scan_ssids) |
2920 | return -EINVAL; | |
2a519311 | 2921 | |
70692ad2 JM |
2922 | if (info->attrs[NL80211_ATTR_IE]) |
2923 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2924 | else | |
2925 | ie_len = 0; | |
2926 | ||
4c476991 JB |
2927 | if (ie_len > wiphy->max_scan_ie_len) |
2928 | return -EINVAL; | |
18a83659 | 2929 | |
2a519311 JB |
2930 | request = kzalloc(sizeof(*request) |
2931 | + sizeof(*ssid) * n_ssids | |
70692ad2 JM |
2932 | + sizeof(channel) * n_channels |
2933 | + ie_len, GFP_KERNEL); | |
4c476991 JB |
2934 | if (!request) |
2935 | return -ENOMEM; | |
2a519311 | 2936 | |
2a519311 | 2937 | if (n_ssids) |
5ba63533 | 2938 | request->ssids = (void *)&request->channels[n_channels]; |
2a519311 | 2939 | request->n_ssids = n_ssids; |
70692ad2 JM |
2940 | if (ie_len) { |
2941 | if (request->ssids) | |
2942 | request->ie = (void *)(request->ssids + n_ssids); | |
2943 | else | |
2944 | request->ie = (void *)(request->channels + n_channels); | |
2945 | } | |
2a519311 | 2946 | |
584991dc | 2947 | i = 0; |
2a519311 JB |
2948 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
2949 | /* user specified, bail out if channel not found */ | |
2a519311 | 2950 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { |
584991dc JB |
2951 | struct ieee80211_channel *chan; |
2952 | ||
2953 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
2954 | ||
2955 | if (!chan) { | |
2a519311 JB |
2956 | err = -EINVAL; |
2957 | goto out_free; | |
2958 | } | |
584991dc JB |
2959 | |
2960 | /* ignore disabled channels */ | |
2961 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
2962 | continue; | |
2963 | ||
2964 | request->channels[i] = chan; | |
2a519311 JB |
2965 | i++; |
2966 | } | |
2967 | } else { | |
2968 | /* all channels */ | |
2a519311 JB |
2969 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
2970 | int j; | |
2971 | if (!wiphy->bands[band]) | |
2972 | continue; | |
2973 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
584991dc JB |
2974 | struct ieee80211_channel *chan; |
2975 | ||
2976 | chan = &wiphy->bands[band]->channels[j]; | |
2977 | ||
2978 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
2979 | continue; | |
2980 | ||
2981 | request->channels[i] = chan; | |
2a519311 JB |
2982 | i++; |
2983 | } | |
2984 | } | |
2985 | } | |
2986 | ||
584991dc JB |
2987 | if (!i) { |
2988 | err = -EINVAL; | |
2989 | goto out_free; | |
2990 | } | |
2991 | ||
2992 | request->n_channels = i; | |
2993 | ||
2a519311 JB |
2994 | i = 0; |
2995 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
2996 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
2997 | if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) { | |
2998 | err = -EINVAL; | |
2999 | goto out_free; | |
3000 | } | |
3001 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); | |
3002 | request->ssids[i].ssid_len = nla_len(attr); | |
3003 | i++; | |
3004 | } | |
3005 | } | |
3006 | ||
70692ad2 JM |
3007 | if (info->attrs[NL80211_ATTR_IE]) { |
3008 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
3009 | memcpy((void *)request->ie, |
3010 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
3011 | request->ie_len); |
3012 | } | |
3013 | ||
463d0183 | 3014 | request->dev = dev; |
79c97e97 | 3015 | request->wiphy = &rdev->wiphy; |
2a519311 | 3016 | |
79c97e97 JB |
3017 | rdev->scan_req = request; |
3018 | err = rdev->ops->scan(&rdev->wiphy, dev, request); | |
2a519311 | 3019 | |
463d0183 | 3020 | if (!err) { |
79c97e97 | 3021 | nl80211_send_scan_start(rdev, dev); |
463d0183 | 3022 | dev_hold(dev); |
4c476991 | 3023 | } else { |
2a519311 | 3024 | out_free: |
79c97e97 | 3025 | rdev->scan_req = NULL; |
2a519311 JB |
3026 | kfree(request); |
3027 | } | |
3b85875a | 3028 | |
2a519311 JB |
3029 | return err; |
3030 | } | |
3031 | ||
3032 | static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
3033 | struct cfg80211_registered_device *rdev, | |
48ab905d JB |
3034 | struct wireless_dev *wdev, |
3035 | struct cfg80211_internal_bss *intbss) | |
2a519311 | 3036 | { |
48ab905d | 3037 | struct cfg80211_bss *res = &intbss->pub; |
2a519311 JB |
3038 | void *hdr; |
3039 | struct nlattr *bss; | |
48ab905d JB |
3040 | int i; |
3041 | ||
3042 | ASSERT_WDEV_LOCK(wdev); | |
2a519311 JB |
3043 | |
3044 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
3045 | NL80211_CMD_NEW_SCAN_RESULTS); | |
3046 | if (!hdr) | |
3047 | return -1; | |
3048 | ||
f5ea9120 | 3049 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation); |
48ab905d | 3050 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex); |
2a519311 JB |
3051 | |
3052 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
3053 | if (!bss) | |
3054 | goto nla_put_failure; | |
3055 | if (!is_zero_ether_addr(res->bssid)) | |
3056 | NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid); | |
3057 | if (res->information_elements && res->len_information_elements) | |
3058 | NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
3059 | res->len_information_elements, | |
3060 | res->information_elements); | |
34a6eddb JM |
3061 | if (res->beacon_ies && res->len_beacon_ies && |
3062 | res->beacon_ies != res->information_elements) | |
3063 | NLA_PUT(msg, NL80211_BSS_BEACON_IES, | |
3064 | res->len_beacon_ies, res->beacon_ies); | |
2a519311 JB |
3065 | if (res->tsf) |
3066 | NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf); | |
3067 | if (res->beacon_interval) | |
3068 | NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval); | |
3069 | NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability); | |
3070 | NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq); | |
7c89606e HS |
3071 | NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO, |
3072 | jiffies_to_msecs(jiffies - intbss->ts)); | |
2a519311 | 3073 | |
77965c97 | 3074 | switch (rdev->wiphy.signal_type) { |
2a519311 JB |
3075 | case CFG80211_SIGNAL_TYPE_MBM: |
3076 | NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal); | |
3077 | break; | |
3078 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
3079 | NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal); | |
3080 | break; | |
3081 | default: | |
3082 | break; | |
3083 | } | |
3084 | ||
48ab905d | 3085 | switch (wdev->iftype) { |
074ac8df | 3086 | case NL80211_IFTYPE_P2P_CLIENT: |
48ab905d JB |
3087 | case NL80211_IFTYPE_STATION: |
3088 | if (intbss == wdev->current_bss) | |
3089 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3090 | NL80211_BSS_STATUS_ASSOCIATED); | |
3091 | else for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
3092 | if (intbss != wdev->auth_bsses[i]) | |
3093 | continue; | |
3094 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3095 | NL80211_BSS_STATUS_AUTHENTICATED); | |
3096 | break; | |
3097 | } | |
3098 | break; | |
3099 | case NL80211_IFTYPE_ADHOC: | |
3100 | if (intbss == wdev->current_bss) | |
3101 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3102 | NL80211_BSS_STATUS_IBSS_JOINED); | |
3103 | break; | |
3104 | default: | |
3105 | break; | |
3106 | } | |
3107 | ||
2a519311 JB |
3108 | nla_nest_end(msg, bss); |
3109 | ||
3110 | return genlmsg_end(msg, hdr); | |
3111 | ||
3112 | nla_put_failure: | |
3113 | genlmsg_cancel(msg, hdr); | |
3114 | return -EMSGSIZE; | |
3115 | } | |
3116 | ||
3117 | static int nl80211_dump_scan(struct sk_buff *skb, | |
3118 | struct netlink_callback *cb) | |
3119 | { | |
48ab905d JB |
3120 | struct cfg80211_registered_device *rdev; |
3121 | struct net_device *dev; | |
2a519311 | 3122 | struct cfg80211_internal_bss *scan; |
48ab905d | 3123 | struct wireless_dev *wdev; |
2a519311 JB |
3124 | int start = cb->args[1], idx = 0; |
3125 | int err; | |
3126 | ||
67748893 JB |
3127 | err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev); |
3128 | if (err) | |
3129 | return err; | |
2a519311 | 3130 | |
48ab905d | 3131 | wdev = dev->ieee80211_ptr; |
2a519311 | 3132 | |
48ab905d JB |
3133 | wdev_lock(wdev); |
3134 | spin_lock_bh(&rdev->bss_lock); | |
3135 | cfg80211_bss_expire(rdev); | |
3136 | ||
3137 | list_for_each_entry(scan, &rdev->bss_list, list) { | |
2a519311 JB |
3138 | if (++idx <= start) |
3139 | continue; | |
3140 | if (nl80211_send_bss(skb, | |
3141 | NETLINK_CB(cb->skb).pid, | |
3142 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
48ab905d | 3143 | rdev, wdev, scan) < 0) { |
2a519311 | 3144 | idx--; |
67748893 | 3145 | break; |
2a519311 JB |
3146 | } |
3147 | } | |
3148 | ||
48ab905d JB |
3149 | spin_unlock_bh(&rdev->bss_lock); |
3150 | wdev_unlock(wdev); | |
2a519311 JB |
3151 | |
3152 | cb->args[1] = idx; | |
67748893 | 3153 | nl80211_finish_netdev_dump(rdev); |
2a519311 | 3154 | |
67748893 | 3155 | return skb->len; |
2a519311 JB |
3156 | } |
3157 | ||
61fa713c HS |
3158 | static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq, |
3159 | int flags, struct net_device *dev, | |
3160 | struct survey_info *survey) | |
3161 | { | |
3162 | void *hdr; | |
3163 | struct nlattr *infoattr; | |
3164 | ||
3165 | /* Survey without a channel doesn't make sense */ | |
3166 | if (!survey->channel) | |
3167 | return -EINVAL; | |
3168 | ||
3169 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
3170 | NL80211_CMD_NEW_SURVEY_RESULTS); | |
3171 | if (!hdr) | |
3172 | return -ENOMEM; | |
3173 | ||
3174 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
3175 | ||
3176 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); | |
3177 | if (!infoattr) | |
3178 | goto nla_put_failure; | |
3179 | ||
3180 | NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY, | |
3181 | survey->channel->center_freq); | |
3182 | if (survey->filled & SURVEY_INFO_NOISE_DBM) | |
3183 | NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE, | |
3184 | survey->noise); | |
17e5a808 FF |
3185 | if (survey->filled & SURVEY_INFO_IN_USE) |
3186 | NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE); | |
8610c29a FF |
3187 | if (survey->filled & SURVEY_INFO_CHANNEL_TIME) |
3188 | NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME, | |
3189 | survey->channel_time); | |
3190 | if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) | |
3191 | NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY, | |
3192 | survey->channel_time_busy); | |
3193 | if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) | |
3194 | NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY, | |
3195 | survey->channel_time_ext_busy); | |
3196 | if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) | |
3197 | NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX, | |
3198 | survey->channel_time_rx); | |
3199 | if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) | |
3200 | NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX, | |
3201 | survey->channel_time_tx); | |
61fa713c HS |
3202 | |
3203 | nla_nest_end(msg, infoattr); | |
3204 | ||
3205 | return genlmsg_end(msg, hdr); | |
3206 | ||
3207 | nla_put_failure: | |
3208 | genlmsg_cancel(msg, hdr); | |
3209 | return -EMSGSIZE; | |
3210 | } | |
3211 | ||
3212 | static int nl80211_dump_survey(struct sk_buff *skb, | |
3213 | struct netlink_callback *cb) | |
3214 | { | |
3215 | struct survey_info survey; | |
3216 | struct cfg80211_registered_device *dev; | |
3217 | struct net_device *netdev; | |
61fa713c HS |
3218 | int survey_idx = cb->args[1]; |
3219 | int res; | |
3220 | ||
67748893 JB |
3221 | res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
3222 | if (res) | |
3223 | return res; | |
61fa713c HS |
3224 | |
3225 | if (!dev->ops->dump_survey) { | |
3226 | res = -EOPNOTSUPP; | |
3227 | goto out_err; | |
3228 | } | |
3229 | ||
3230 | while (1) { | |
3231 | res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx, | |
3232 | &survey); | |
3233 | if (res == -ENOENT) | |
3234 | break; | |
3235 | if (res) | |
3236 | goto out_err; | |
3237 | ||
3238 | if (nl80211_send_survey(skb, | |
3239 | NETLINK_CB(cb->skb).pid, | |
3240 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
3241 | netdev, | |
3242 | &survey) < 0) | |
3243 | goto out; | |
3244 | survey_idx++; | |
3245 | } | |
3246 | ||
3247 | out: | |
3248 | cb->args[1] = survey_idx; | |
3249 | res = skb->len; | |
3250 | out_err: | |
67748893 | 3251 | nl80211_finish_netdev_dump(dev); |
61fa713c HS |
3252 | return res; |
3253 | } | |
3254 | ||
255e737e JM |
3255 | static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type) |
3256 | { | |
b23aa676 SO |
3257 | return auth_type <= NL80211_AUTHTYPE_MAX; |
3258 | } | |
3259 | ||
3260 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) | |
3261 | { | |
3262 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
3263 | NL80211_WPA_VERSION_2)); | |
3264 | } | |
3265 | ||
3266 | static bool nl80211_valid_akm_suite(u32 akm) | |
3267 | { | |
3268 | return akm == WLAN_AKM_SUITE_8021X || | |
3269 | akm == WLAN_AKM_SUITE_PSK; | |
3270 | } | |
3271 | ||
3272 | static bool nl80211_valid_cipher_suite(u32 cipher) | |
3273 | { | |
3274 | return cipher == WLAN_CIPHER_SUITE_WEP40 || | |
3275 | cipher == WLAN_CIPHER_SUITE_WEP104 || | |
3276 | cipher == WLAN_CIPHER_SUITE_TKIP || | |
3277 | cipher == WLAN_CIPHER_SUITE_CCMP || | |
3278 | cipher == WLAN_CIPHER_SUITE_AES_CMAC; | |
255e737e JM |
3279 | } |
3280 | ||
b23aa676 | 3281 | |
636a5d36 JM |
3282 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
3283 | { | |
4c476991 JB |
3284 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3285 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 JB |
3286 | struct ieee80211_channel *chan; |
3287 | const u8 *bssid, *ssid, *ie = NULL; | |
3288 | int err, ssid_len, ie_len = 0; | |
3289 | enum nl80211_auth_type auth_type; | |
fffd0934 | 3290 | struct key_parse key; |
d5cdfacb | 3291 | bool local_state_change; |
636a5d36 | 3292 | |
f4a11bb0 JB |
3293 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3294 | return -EINVAL; | |
3295 | ||
3296 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3297 | return -EINVAL; | |
3298 | ||
1778092e JM |
3299 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
3300 | return -EINVAL; | |
3301 | ||
19957bb3 JB |
3302 | if (!info->attrs[NL80211_ATTR_SSID]) |
3303 | return -EINVAL; | |
3304 | ||
3305 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
3306 | return -EINVAL; | |
3307 | ||
fffd0934 JB |
3308 | err = nl80211_parse_key(info, &key); |
3309 | if (err) | |
3310 | return err; | |
3311 | ||
3312 | if (key.idx >= 0) { | |
e31b8213 JB |
3313 | if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP) |
3314 | return -EINVAL; | |
fffd0934 JB |
3315 | if (!key.p.key || !key.p.key_len) |
3316 | return -EINVAL; | |
3317 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
3318 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
3319 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
3320 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
3321 | return -EINVAL; | |
3322 | if (key.idx > 4) | |
3323 | return -EINVAL; | |
3324 | } else { | |
3325 | key.p.key_len = 0; | |
3326 | key.p.key = NULL; | |
3327 | } | |
3328 | ||
afea0b7a JB |
3329 | if (key.idx >= 0) { |
3330 | int i; | |
3331 | bool ok = false; | |
3332 | for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { | |
3333 | if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { | |
3334 | ok = true; | |
3335 | break; | |
3336 | } | |
3337 | } | |
4c476991 JB |
3338 | if (!ok) |
3339 | return -EINVAL; | |
afea0b7a JB |
3340 | } |
3341 | ||
4c476991 JB |
3342 | if (!rdev->ops->auth) |
3343 | return -EOPNOTSUPP; | |
636a5d36 | 3344 | |
074ac8df | 3345 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3346 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3347 | return -EOPNOTSUPP; | |
eec60b03 | 3348 | |
19957bb3 | 3349 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
79c97e97 | 3350 | chan = ieee80211_get_channel(&rdev->wiphy, |
19957bb3 | 3351 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
4c476991 JB |
3352 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
3353 | return -EINVAL; | |
636a5d36 | 3354 | |
19957bb3 JB |
3355 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3356 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3357 | |
3358 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3359 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3360 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3361 | } |
3362 | ||
19957bb3 | 3363 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
4c476991 JB |
3364 | if (!nl80211_valid_auth_type(auth_type)) |
3365 | return -EINVAL; | |
636a5d36 | 3366 | |
d5cdfacb JM |
3367 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3368 | ||
4c476991 JB |
3369 | return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, |
3370 | ssid, ssid_len, ie, ie_len, | |
3371 | key.p.key, key.p.key_len, key.idx, | |
3372 | local_state_change); | |
636a5d36 JM |
3373 | } |
3374 | ||
c0692b8f JB |
3375 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
3376 | struct genl_info *info, | |
3dc27d25 JB |
3377 | struct cfg80211_crypto_settings *settings, |
3378 | int cipher_limit) | |
b23aa676 | 3379 | { |
c0b2bbd8 JB |
3380 | memset(settings, 0, sizeof(*settings)); |
3381 | ||
b23aa676 SO |
3382 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
3383 | ||
c0692b8f JB |
3384 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { |
3385 | u16 proto; | |
3386 | proto = nla_get_u16( | |
3387 | info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); | |
3388 | settings->control_port_ethertype = cpu_to_be16(proto); | |
3389 | if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
3390 | proto != ETH_P_PAE) | |
3391 | return -EINVAL; | |
3392 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]) | |
3393 | settings->control_port_no_encrypt = true; | |
3394 | } else | |
3395 | settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE); | |
3396 | ||
b23aa676 SO |
3397 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { |
3398 | void *data; | |
3399 | int len, i; | |
3400 | ||
3401 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3402 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3403 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
3404 | ||
3405 | if (len % sizeof(u32)) | |
3406 | return -EINVAL; | |
3407 | ||
3dc27d25 | 3408 | if (settings->n_ciphers_pairwise > cipher_limit) |
b23aa676 SO |
3409 | return -EINVAL; |
3410 | ||
3411 | memcpy(settings->ciphers_pairwise, data, len); | |
3412 | ||
3413 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3414 | if (!nl80211_valid_cipher_suite( | |
3415 | settings->ciphers_pairwise[i])) | |
3416 | return -EINVAL; | |
3417 | } | |
3418 | ||
3419 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
3420 | settings->cipher_group = | |
3421 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
3422 | if (!nl80211_valid_cipher_suite(settings->cipher_group)) | |
3423 | return -EINVAL; | |
3424 | } | |
3425 | ||
3426 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
3427 | settings->wpa_versions = | |
3428 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
3429 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
3430 | return -EINVAL; | |
3431 | } | |
3432 | ||
3433 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
3434 | void *data; | |
3435 | int len, i; | |
3436 | ||
3437 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3438 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3439 | settings->n_akm_suites = len / sizeof(u32); | |
3440 | ||
3441 | if (len % sizeof(u32)) | |
3442 | return -EINVAL; | |
3443 | ||
3444 | memcpy(settings->akm_suites, data, len); | |
3445 | ||
3446 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3447 | if (!nl80211_valid_akm_suite(settings->akm_suites[i])) | |
3448 | return -EINVAL; | |
3449 | } | |
3450 | ||
3451 | return 0; | |
3452 | } | |
3453 | ||
636a5d36 JM |
3454 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
3455 | { | |
4c476991 JB |
3456 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3457 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 3458 | struct cfg80211_crypto_settings crypto; |
f444de05 | 3459 | struct ieee80211_channel *chan; |
3e5d7649 | 3460 | const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL; |
19957bb3 JB |
3461 | int err, ssid_len, ie_len = 0; |
3462 | bool use_mfp = false; | |
636a5d36 | 3463 | |
f4a11bb0 JB |
3464 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3465 | return -EINVAL; | |
3466 | ||
3467 | if (!info->attrs[NL80211_ATTR_MAC] || | |
19957bb3 JB |
3468 | !info->attrs[NL80211_ATTR_SSID] || |
3469 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
f4a11bb0 JB |
3470 | return -EINVAL; |
3471 | ||
4c476991 JB |
3472 | if (!rdev->ops->assoc) |
3473 | return -EOPNOTSUPP; | |
636a5d36 | 3474 | |
074ac8df | 3475 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3476 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3477 | return -EOPNOTSUPP; | |
eec60b03 | 3478 | |
19957bb3 | 3479 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3480 | |
19957bb3 JB |
3481 | chan = ieee80211_get_channel(&rdev->wiphy, |
3482 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
4c476991 JB |
3483 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
3484 | return -EINVAL; | |
636a5d36 | 3485 | |
19957bb3 JB |
3486 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3487 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3488 | |
3489 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3490 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3491 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3492 | } |
3493 | ||
dc6382ce | 3494 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
4f5dadce | 3495 | enum nl80211_mfp mfp = |
dc6382ce | 3496 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
4f5dadce | 3497 | if (mfp == NL80211_MFP_REQUIRED) |
19957bb3 | 3498 | use_mfp = true; |
4c476991 JB |
3499 | else if (mfp != NL80211_MFP_NO) |
3500 | return -EINVAL; | |
dc6382ce JM |
3501 | } |
3502 | ||
3e5d7649 JB |
3503 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
3504 | prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); | |
3505 | ||
c0692b8f | 3506 | err = nl80211_crypto_settings(rdev, info, &crypto, 1); |
b23aa676 | 3507 | if (!err) |
3e5d7649 JB |
3508 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, |
3509 | ssid, ssid_len, ie, ie_len, use_mfp, | |
19957bb3 | 3510 | &crypto); |
636a5d36 | 3511 | |
636a5d36 JM |
3512 | return err; |
3513 | } | |
3514 | ||
3515 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
3516 | { | |
4c476991 JB |
3517 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3518 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 3519 | const u8 *ie = NULL, *bssid; |
4c476991 | 3520 | int ie_len = 0; |
19957bb3 | 3521 | u16 reason_code; |
d5cdfacb | 3522 | bool local_state_change; |
636a5d36 | 3523 | |
f4a11bb0 JB |
3524 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3525 | return -EINVAL; | |
3526 | ||
3527 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3528 | return -EINVAL; | |
3529 | ||
3530 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3531 | return -EINVAL; | |
3532 | ||
4c476991 JB |
3533 | if (!rdev->ops->deauth) |
3534 | return -EOPNOTSUPP; | |
636a5d36 | 3535 | |
074ac8df | 3536 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3537 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3538 | return -EOPNOTSUPP; | |
eec60b03 | 3539 | |
19957bb3 | 3540 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3541 | |
19957bb3 JB |
3542 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3543 | if (reason_code == 0) { | |
f4a11bb0 | 3544 | /* Reason Code 0 is reserved */ |
4c476991 | 3545 | return -EINVAL; |
255e737e | 3546 | } |
636a5d36 JM |
3547 | |
3548 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3549 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3550 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3551 | } |
3552 | ||
d5cdfacb JM |
3553 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3554 | ||
4c476991 JB |
3555 | return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, |
3556 | local_state_change); | |
636a5d36 JM |
3557 | } |
3558 | ||
3559 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
3560 | { | |
4c476991 JB |
3561 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3562 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 3563 | const u8 *ie = NULL, *bssid; |
4c476991 | 3564 | int ie_len = 0; |
19957bb3 | 3565 | u16 reason_code; |
d5cdfacb | 3566 | bool local_state_change; |
636a5d36 | 3567 | |
f4a11bb0 JB |
3568 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3569 | return -EINVAL; | |
3570 | ||
3571 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3572 | return -EINVAL; | |
3573 | ||
3574 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3575 | return -EINVAL; | |
3576 | ||
4c476991 JB |
3577 | if (!rdev->ops->disassoc) |
3578 | return -EOPNOTSUPP; | |
636a5d36 | 3579 | |
074ac8df | 3580 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3581 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3582 | return -EOPNOTSUPP; | |
eec60b03 | 3583 | |
19957bb3 | 3584 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3585 | |
19957bb3 JB |
3586 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3587 | if (reason_code == 0) { | |
f4a11bb0 | 3588 | /* Reason Code 0 is reserved */ |
4c476991 | 3589 | return -EINVAL; |
255e737e | 3590 | } |
636a5d36 JM |
3591 | |
3592 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3593 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3594 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3595 | } |
3596 | ||
d5cdfacb JM |
3597 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3598 | ||
4c476991 JB |
3599 | return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, |
3600 | local_state_change); | |
636a5d36 JM |
3601 | } |
3602 | ||
dd5b4cc7 FF |
3603 | static bool |
3604 | nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev, | |
3605 | int mcast_rate[IEEE80211_NUM_BANDS], | |
3606 | int rateval) | |
3607 | { | |
3608 | struct wiphy *wiphy = &rdev->wiphy; | |
3609 | bool found = false; | |
3610 | int band, i; | |
3611 | ||
3612 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
3613 | struct ieee80211_supported_band *sband; | |
3614 | ||
3615 | sband = wiphy->bands[band]; | |
3616 | if (!sband) | |
3617 | continue; | |
3618 | ||
3619 | for (i = 0; i < sband->n_bitrates; i++) { | |
3620 | if (sband->bitrates[i].bitrate == rateval) { | |
3621 | mcast_rate[band] = i + 1; | |
3622 | found = true; | |
3623 | break; | |
3624 | } | |
3625 | } | |
3626 | } | |
3627 | ||
3628 | return found; | |
3629 | } | |
3630 | ||
04a773ad JB |
3631 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
3632 | { | |
4c476991 JB |
3633 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3634 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad JB |
3635 | struct cfg80211_ibss_params ibss; |
3636 | struct wiphy *wiphy; | |
fffd0934 | 3637 | struct cfg80211_cached_keys *connkeys = NULL; |
04a773ad JB |
3638 | int err; |
3639 | ||
8e30bc55 JB |
3640 | memset(&ibss, 0, sizeof(ibss)); |
3641 | ||
04a773ad JB |
3642 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3643 | return -EINVAL; | |
3644 | ||
3645 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
3646 | !info->attrs[NL80211_ATTR_SSID] || | |
3647 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
3648 | return -EINVAL; | |
3649 | ||
8e30bc55 JB |
3650 | ibss.beacon_interval = 100; |
3651 | ||
3652 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
3653 | ibss.beacon_interval = | |
3654 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
3655 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
3656 | return -EINVAL; | |
3657 | } | |
3658 | ||
4c476991 JB |
3659 | if (!rdev->ops->join_ibss) |
3660 | return -EOPNOTSUPP; | |
04a773ad | 3661 | |
4c476991 JB |
3662 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
3663 | return -EOPNOTSUPP; | |
04a773ad | 3664 | |
79c97e97 | 3665 | wiphy = &rdev->wiphy; |
04a773ad JB |
3666 | |
3667 | if (info->attrs[NL80211_ATTR_MAC]) | |
3668 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3669 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3670 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3671 | ||
3672 | if (info->attrs[NL80211_ATTR_IE]) { | |
3673 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3674 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3675 | } | |
3676 | ||
3677 | ibss.channel = ieee80211_get_channel(wiphy, | |
3678 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3679 | if (!ibss.channel || | |
3680 | ibss.channel->flags & IEEE80211_CHAN_NO_IBSS || | |
4c476991 JB |
3681 | ibss.channel->flags & IEEE80211_CHAN_DISABLED) |
3682 | return -EINVAL; | |
04a773ad JB |
3683 | |
3684 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; | |
fffd0934 JB |
3685 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
3686 | ||
fbd2c8dc TP |
3687 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
3688 | u8 *rates = | |
3689 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3690 | int n_rates = | |
3691 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3692 | struct ieee80211_supported_band *sband = | |
3693 | wiphy->bands[ibss.channel->band]; | |
3694 | int i, j; | |
3695 | ||
4c476991 JB |
3696 | if (n_rates == 0) |
3697 | return -EINVAL; | |
fbd2c8dc TP |
3698 | |
3699 | for (i = 0; i < n_rates; i++) { | |
3700 | int rate = (rates[i] & 0x7f) * 5; | |
3701 | bool found = false; | |
3702 | ||
3703 | for (j = 0; j < sband->n_bitrates; j++) { | |
3704 | if (sband->bitrates[j].bitrate == rate) { | |
3705 | found = true; | |
3706 | ibss.basic_rates |= BIT(j); | |
3707 | break; | |
3708 | } | |
3709 | } | |
4c476991 JB |
3710 | if (!found) |
3711 | return -EINVAL; | |
fbd2c8dc | 3712 | } |
fbd2c8dc | 3713 | } |
dd5b4cc7 FF |
3714 | |
3715 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && | |
3716 | !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate, | |
3717 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
3718 | return -EINVAL; | |
fbd2c8dc | 3719 | |
4c476991 JB |
3720 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
3721 | connkeys = nl80211_parse_connkeys(rdev, | |
3722 | info->attrs[NL80211_ATTR_KEYS]); | |
3723 | if (IS_ERR(connkeys)) | |
3724 | return PTR_ERR(connkeys); | |
3725 | } | |
04a773ad | 3726 | |
4c476991 | 3727 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
fffd0934 JB |
3728 | if (err) |
3729 | kfree(connkeys); | |
04a773ad JB |
3730 | return err; |
3731 | } | |
3732 | ||
3733 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
3734 | { | |
4c476991 JB |
3735 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3736 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad | 3737 | |
4c476991 JB |
3738 | if (!rdev->ops->leave_ibss) |
3739 | return -EOPNOTSUPP; | |
04a773ad | 3740 | |
4c476991 JB |
3741 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
3742 | return -EOPNOTSUPP; | |
04a773ad | 3743 | |
4c476991 | 3744 | return cfg80211_leave_ibss(rdev, dev, false); |
04a773ad JB |
3745 | } |
3746 | ||
aff89a9b JB |
3747 | #ifdef CONFIG_NL80211_TESTMODE |
3748 | static struct genl_multicast_group nl80211_testmode_mcgrp = { | |
3749 | .name = "testmode", | |
3750 | }; | |
3751 | ||
3752 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) | |
3753 | { | |
4c476991 | 3754 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
aff89a9b JB |
3755 | int err; |
3756 | ||
3757 | if (!info->attrs[NL80211_ATTR_TESTDATA]) | |
3758 | return -EINVAL; | |
3759 | ||
aff89a9b JB |
3760 | err = -EOPNOTSUPP; |
3761 | if (rdev->ops->testmode_cmd) { | |
3762 | rdev->testmode_info = info; | |
3763 | err = rdev->ops->testmode_cmd(&rdev->wiphy, | |
3764 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), | |
3765 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
3766 | rdev->testmode_info = NULL; | |
3767 | } | |
3768 | ||
aff89a9b JB |
3769 | return err; |
3770 | } | |
3771 | ||
3772 | static struct sk_buff * | |
3773 | __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev, | |
3774 | int approxlen, u32 pid, u32 seq, gfp_t gfp) | |
3775 | { | |
3776 | struct sk_buff *skb; | |
3777 | void *hdr; | |
3778 | struct nlattr *data; | |
3779 | ||
3780 | skb = nlmsg_new(approxlen + 100, gfp); | |
3781 | if (!skb) | |
3782 | return NULL; | |
3783 | ||
3784 | hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE); | |
3785 | if (!hdr) { | |
3786 | kfree_skb(skb); | |
3787 | return NULL; | |
3788 | } | |
3789 | ||
3790 | NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
3791 | data = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
3792 | ||
3793 | ((void **)skb->cb)[0] = rdev; | |
3794 | ((void **)skb->cb)[1] = hdr; | |
3795 | ((void **)skb->cb)[2] = data; | |
3796 | ||
3797 | return skb; | |
3798 | ||
3799 | nla_put_failure: | |
3800 | kfree_skb(skb); | |
3801 | return NULL; | |
3802 | } | |
3803 | ||
3804 | struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, | |
3805 | int approxlen) | |
3806 | { | |
3807 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
3808 | ||
3809 | if (WARN_ON(!rdev->testmode_info)) | |
3810 | return NULL; | |
3811 | ||
3812 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, | |
3813 | rdev->testmode_info->snd_pid, | |
3814 | rdev->testmode_info->snd_seq, | |
3815 | GFP_KERNEL); | |
3816 | } | |
3817 | EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb); | |
3818 | ||
3819 | int cfg80211_testmode_reply(struct sk_buff *skb) | |
3820 | { | |
3821 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
3822 | void *hdr = ((void **)skb->cb)[1]; | |
3823 | struct nlattr *data = ((void **)skb->cb)[2]; | |
3824 | ||
3825 | if (WARN_ON(!rdev->testmode_info)) { | |
3826 | kfree_skb(skb); | |
3827 | return -EINVAL; | |
3828 | } | |
3829 | ||
3830 | nla_nest_end(skb, data); | |
3831 | genlmsg_end(skb, hdr); | |
3832 | return genlmsg_reply(skb, rdev->testmode_info); | |
3833 | } | |
3834 | EXPORT_SYMBOL(cfg80211_testmode_reply); | |
3835 | ||
3836 | struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, | |
3837 | int approxlen, gfp_t gfp) | |
3838 | { | |
3839 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
3840 | ||
3841 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp); | |
3842 | } | |
3843 | EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb); | |
3844 | ||
3845 | void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) | |
3846 | { | |
3847 | void *hdr = ((void **)skb->cb)[1]; | |
3848 | struct nlattr *data = ((void **)skb->cb)[2]; | |
3849 | ||
3850 | nla_nest_end(skb, data); | |
3851 | genlmsg_end(skb, hdr); | |
3852 | genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp); | |
3853 | } | |
3854 | EXPORT_SYMBOL(cfg80211_testmode_event); | |
3855 | #endif | |
3856 | ||
b23aa676 SO |
3857 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
3858 | { | |
4c476991 JB |
3859 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3860 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
3861 | struct cfg80211_connect_params connect; |
3862 | struct wiphy *wiphy; | |
fffd0934 | 3863 | struct cfg80211_cached_keys *connkeys = NULL; |
b23aa676 SO |
3864 | int err; |
3865 | ||
3866 | memset(&connect, 0, sizeof(connect)); | |
3867 | ||
3868 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
3869 | return -EINVAL; | |
3870 | ||
3871 | if (!info->attrs[NL80211_ATTR_SSID] || | |
3872 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
3873 | return -EINVAL; | |
3874 | ||
3875 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
3876 | connect.auth_type = | |
3877 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
3878 | if (!nl80211_valid_auth_type(connect.auth_type)) | |
3879 | return -EINVAL; | |
3880 | } else | |
3881 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
3882 | ||
3883 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
3884 | ||
c0692b8f | 3885 | err = nl80211_crypto_settings(rdev, info, &connect.crypto, |
3dc27d25 | 3886 | NL80211_MAX_NR_CIPHER_SUITES); |
b23aa676 SO |
3887 | if (err) |
3888 | return err; | |
b23aa676 | 3889 | |
074ac8df | 3890 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3891 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3892 | return -EOPNOTSUPP; | |
b23aa676 | 3893 | |
79c97e97 | 3894 | wiphy = &rdev->wiphy; |
b23aa676 | 3895 | |
b23aa676 SO |
3896 | if (info->attrs[NL80211_ATTR_MAC]) |
3897 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3898 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3899 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3900 | ||
3901 | if (info->attrs[NL80211_ATTR_IE]) { | |
3902 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3903 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3904 | } | |
3905 | ||
3906 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
3907 | connect.channel = | |
3908 | ieee80211_get_channel(wiphy, | |
3909 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3910 | if (!connect.channel || | |
4c476991 JB |
3911 | connect.channel->flags & IEEE80211_CHAN_DISABLED) |
3912 | return -EINVAL; | |
b23aa676 SO |
3913 | } |
3914 | ||
fffd0934 JB |
3915 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
3916 | connkeys = nl80211_parse_connkeys(rdev, | |
3917 | info->attrs[NL80211_ATTR_KEYS]); | |
4c476991 JB |
3918 | if (IS_ERR(connkeys)) |
3919 | return PTR_ERR(connkeys); | |
fffd0934 JB |
3920 | } |
3921 | ||
3922 | err = cfg80211_connect(rdev, dev, &connect, connkeys); | |
fffd0934 JB |
3923 | if (err) |
3924 | kfree(connkeys); | |
b23aa676 SO |
3925 | return err; |
3926 | } | |
3927 | ||
3928 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
3929 | { | |
4c476991 JB |
3930 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3931 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
3932 | u16 reason; |
3933 | ||
3934 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3935 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
3936 | else | |
3937 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
3938 | ||
3939 | if (reason == 0) | |
3940 | return -EINVAL; | |
3941 | ||
074ac8df | 3942 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3943 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3944 | return -EOPNOTSUPP; | |
b23aa676 | 3945 | |
4c476991 | 3946 | return cfg80211_disconnect(rdev, dev, reason, true); |
b23aa676 SO |
3947 | } |
3948 | ||
463d0183 JB |
3949 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
3950 | { | |
4c476991 | 3951 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
463d0183 JB |
3952 | struct net *net; |
3953 | int err; | |
3954 | u32 pid; | |
3955 | ||
3956 | if (!info->attrs[NL80211_ATTR_PID]) | |
3957 | return -EINVAL; | |
3958 | ||
3959 | pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
3960 | ||
463d0183 | 3961 | net = get_net_ns_by_pid(pid); |
4c476991 JB |
3962 | if (IS_ERR(net)) |
3963 | return PTR_ERR(net); | |
463d0183 JB |
3964 | |
3965 | err = 0; | |
3966 | ||
3967 | /* check if anything to do */ | |
4c476991 JB |
3968 | if (!net_eq(wiphy_net(&rdev->wiphy), net)) |
3969 | err = cfg80211_switch_netns(rdev, net); | |
463d0183 | 3970 | |
463d0183 | 3971 | put_net(net); |
463d0183 JB |
3972 | return err; |
3973 | } | |
3974 | ||
67fbb16b SO |
3975 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
3976 | { | |
4c476991 | 3977 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
67fbb16b SO |
3978 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, |
3979 | struct cfg80211_pmksa *pmksa) = NULL; | |
4c476991 | 3980 | struct net_device *dev = info->user_ptr[1]; |
67fbb16b SO |
3981 | struct cfg80211_pmksa pmksa; |
3982 | ||
3983 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
3984 | ||
3985 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3986 | return -EINVAL; | |
3987 | ||
3988 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
3989 | return -EINVAL; | |
3990 | ||
67fbb16b SO |
3991 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); |
3992 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3993 | ||
074ac8df | 3994 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3995 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3996 | return -EOPNOTSUPP; | |
67fbb16b SO |
3997 | |
3998 | switch (info->genlhdr->cmd) { | |
3999 | case NL80211_CMD_SET_PMKSA: | |
4000 | rdev_ops = rdev->ops->set_pmksa; | |
4001 | break; | |
4002 | case NL80211_CMD_DEL_PMKSA: | |
4003 | rdev_ops = rdev->ops->del_pmksa; | |
4004 | break; | |
4005 | default: | |
4006 | WARN_ON(1); | |
4007 | break; | |
4008 | } | |
4009 | ||
4c476991 JB |
4010 | if (!rdev_ops) |
4011 | return -EOPNOTSUPP; | |
67fbb16b | 4012 | |
4c476991 | 4013 | return rdev_ops(&rdev->wiphy, dev, &pmksa); |
67fbb16b SO |
4014 | } |
4015 | ||
4016 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
4017 | { | |
4c476991 JB |
4018 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4019 | struct net_device *dev = info->user_ptr[1]; | |
67fbb16b | 4020 | |
074ac8df | 4021 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
4022 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
4023 | return -EOPNOTSUPP; | |
67fbb16b | 4024 | |
4c476991 JB |
4025 | if (!rdev->ops->flush_pmksa) |
4026 | return -EOPNOTSUPP; | |
67fbb16b | 4027 | |
4c476991 | 4028 | return rdev->ops->flush_pmksa(&rdev->wiphy, dev); |
67fbb16b SO |
4029 | } |
4030 | ||
9588bbd5 JM |
4031 | static int nl80211_remain_on_channel(struct sk_buff *skb, |
4032 | struct genl_info *info) | |
4033 | { | |
4c476991 JB |
4034 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4035 | struct net_device *dev = info->user_ptr[1]; | |
9588bbd5 JM |
4036 | struct ieee80211_channel *chan; |
4037 | struct sk_buff *msg; | |
4038 | void *hdr; | |
4039 | u64 cookie; | |
4040 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
4041 | u32 freq, duration; | |
4042 | int err; | |
4043 | ||
4044 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
4045 | !info->attrs[NL80211_ATTR_DURATION]) | |
4046 | return -EINVAL; | |
4047 | ||
4048 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
4049 | ||
4050 | /* | |
4051 | * We should be on that channel for at least one jiffie, | |
4052 | * and more than 5 seconds seems excessive. | |
4053 | */ | |
4054 | if (!duration || !msecs_to_jiffies(duration) || duration > 5000) | |
4055 | return -EINVAL; | |
4056 | ||
4c476991 JB |
4057 | if (!rdev->ops->remain_on_channel) |
4058 | return -EOPNOTSUPP; | |
9588bbd5 | 4059 | |
9588bbd5 JM |
4060 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
4061 | channel_type = nla_get_u32( | |
4062 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
4063 | if (channel_type != NL80211_CHAN_NO_HT && | |
4064 | channel_type != NL80211_CHAN_HT20 && | |
4065 | channel_type != NL80211_CHAN_HT40PLUS && | |
4c476991 JB |
4066 | channel_type != NL80211_CHAN_HT40MINUS) |
4067 | return -EINVAL; | |
9588bbd5 JM |
4068 | } |
4069 | ||
4070 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
4071 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4c476991 JB |
4072 | if (chan == NULL) |
4073 | return -EINVAL; | |
9588bbd5 JM |
4074 | |
4075 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
4076 | if (!msg) |
4077 | return -ENOMEM; | |
9588bbd5 JM |
4078 | |
4079 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
4080 | NL80211_CMD_REMAIN_ON_CHANNEL); | |
4081 | ||
4082 | if (IS_ERR(hdr)) { | |
4083 | err = PTR_ERR(hdr); | |
4084 | goto free_msg; | |
4085 | } | |
4086 | ||
4087 | err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan, | |
4088 | channel_type, duration, &cookie); | |
4089 | ||
4090 | if (err) | |
4091 | goto free_msg; | |
4092 | ||
4093 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
4094 | ||
4095 | genlmsg_end(msg, hdr); | |
4c476991 JB |
4096 | |
4097 | return genlmsg_reply(msg, info); | |
9588bbd5 JM |
4098 | |
4099 | nla_put_failure: | |
4100 | err = -ENOBUFS; | |
4101 | free_msg: | |
4102 | nlmsg_free(msg); | |
9588bbd5 JM |
4103 | return err; |
4104 | } | |
4105 | ||
4106 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
4107 | struct genl_info *info) | |
4108 | { | |
4c476991 JB |
4109 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4110 | struct net_device *dev = info->user_ptr[1]; | |
9588bbd5 | 4111 | u64 cookie; |
9588bbd5 JM |
4112 | |
4113 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
4114 | return -EINVAL; | |
4115 | ||
4c476991 JB |
4116 | if (!rdev->ops->cancel_remain_on_channel) |
4117 | return -EOPNOTSUPP; | |
9588bbd5 | 4118 | |
9588bbd5 JM |
4119 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); |
4120 | ||
4c476991 | 4121 | return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie); |
9588bbd5 JM |
4122 | } |
4123 | ||
13ae75b1 JM |
4124 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, |
4125 | u8 *rates, u8 rates_len) | |
4126 | { | |
4127 | u8 i; | |
4128 | u32 mask = 0; | |
4129 | ||
4130 | for (i = 0; i < rates_len; i++) { | |
4131 | int rate = (rates[i] & 0x7f) * 5; | |
4132 | int ridx; | |
4133 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { | |
4134 | struct ieee80211_rate *srate = | |
4135 | &sband->bitrates[ridx]; | |
4136 | if (rate == srate->bitrate) { | |
4137 | mask |= 1 << ridx; | |
4138 | break; | |
4139 | } | |
4140 | } | |
4141 | if (ridx == sband->n_bitrates) | |
4142 | return 0; /* rate not found */ | |
4143 | } | |
4144 | ||
4145 | return mask; | |
4146 | } | |
4147 | ||
b54452b0 | 4148 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { |
13ae75b1 JM |
4149 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, |
4150 | .len = NL80211_MAX_SUPP_RATES }, | |
4151 | }; | |
4152 | ||
4153 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, | |
4154 | struct genl_info *info) | |
4155 | { | |
4156 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; | |
4c476991 | 4157 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
13ae75b1 | 4158 | struct cfg80211_bitrate_mask mask; |
4c476991 JB |
4159 | int rem, i; |
4160 | struct net_device *dev = info->user_ptr[1]; | |
13ae75b1 JM |
4161 | struct nlattr *tx_rates; |
4162 | struct ieee80211_supported_band *sband; | |
4163 | ||
4164 | if (info->attrs[NL80211_ATTR_TX_RATES] == NULL) | |
4165 | return -EINVAL; | |
4166 | ||
4c476991 JB |
4167 | if (!rdev->ops->set_bitrate_mask) |
4168 | return -EOPNOTSUPP; | |
13ae75b1 JM |
4169 | |
4170 | memset(&mask, 0, sizeof(mask)); | |
4171 | /* Default to all rates enabled */ | |
4172 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { | |
4173 | sband = rdev->wiphy.bands[i]; | |
4174 | mask.control[i].legacy = | |
4175 | sband ? (1 << sband->n_bitrates) - 1 : 0; | |
4176 | } | |
4177 | ||
4178 | /* | |
4179 | * The nested attribute uses enum nl80211_band as the index. This maps | |
4180 | * directly to the enum ieee80211_band values used in cfg80211. | |
4181 | */ | |
4182 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) | |
4183 | { | |
4184 | enum ieee80211_band band = nla_type(tx_rates); | |
4c476991 JB |
4185 | if (band < 0 || band >= IEEE80211_NUM_BANDS) |
4186 | return -EINVAL; | |
13ae75b1 | 4187 | sband = rdev->wiphy.bands[band]; |
4c476991 JB |
4188 | if (sband == NULL) |
4189 | return -EINVAL; | |
13ae75b1 JM |
4190 | nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), |
4191 | nla_len(tx_rates), nl80211_txattr_policy); | |
4192 | if (tb[NL80211_TXRATE_LEGACY]) { | |
4193 | mask.control[band].legacy = rateset_to_mask( | |
4194 | sband, | |
4195 | nla_data(tb[NL80211_TXRATE_LEGACY]), | |
4196 | nla_len(tb[NL80211_TXRATE_LEGACY])); | |
4c476991 JB |
4197 | if (mask.control[band].legacy == 0) |
4198 | return -EINVAL; | |
13ae75b1 JM |
4199 | } |
4200 | } | |
4201 | ||
4c476991 | 4202 | return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask); |
13ae75b1 JM |
4203 | } |
4204 | ||
2e161f78 | 4205 | static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 4206 | { |
4c476991 JB |
4207 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4208 | struct net_device *dev = info->user_ptr[1]; | |
2e161f78 | 4209 | u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; |
026331c4 JM |
4210 | |
4211 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) | |
4212 | return -EINVAL; | |
4213 | ||
2e161f78 JB |
4214 | if (info->attrs[NL80211_ATTR_FRAME_TYPE]) |
4215 | frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); | |
026331c4 | 4216 | |
9d38d85d | 4217 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
074ac8df | 4218 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && |
663fcafd JB |
4219 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT && |
4220 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
4221 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && | |
4c476991 JB |
4222 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
4223 | return -EOPNOTSUPP; | |
026331c4 JM |
4224 | |
4225 | /* not much point in registering if we can't reply */ | |
4c476991 JB |
4226 | if (!rdev->ops->mgmt_tx) |
4227 | return -EOPNOTSUPP; | |
026331c4 | 4228 | |
4c476991 | 4229 | return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid, |
2e161f78 | 4230 | frame_type, |
026331c4 JM |
4231 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), |
4232 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); | |
026331c4 JM |
4233 | } |
4234 | ||
2e161f78 | 4235 | static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 4236 | { |
4c476991 JB |
4237 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4238 | struct net_device *dev = info->user_ptr[1]; | |
026331c4 JM |
4239 | struct ieee80211_channel *chan; |
4240 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
252aa631 | 4241 | bool channel_type_valid = false; |
026331c4 JM |
4242 | u32 freq; |
4243 | int err; | |
4244 | void *hdr; | |
4245 | u64 cookie; | |
4246 | struct sk_buff *msg; | |
4247 | ||
4248 | if (!info->attrs[NL80211_ATTR_FRAME] || | |
4249 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
4250 | return -EINVAL; | |
4251 | ||
4c476991 JB |
4252 | if (!rdev->ops->mgmt_tx) |
4253 | return -EOPNOTSUPP; | |
026331c4 | 4254 | |
9d38d85d | 4255 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
074ac8df | 4256 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && |
663fcafd JB |
4257 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT && |
4258 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
4259 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && | |
4c476991 JB |
4260 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
4261 | return -EOPNOTSUPP; | |
026331c4 | 4262 | |
026331c4 JM |
4263 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
4264 | channel_type = nla_get_u32( | |
4265 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
4266 | if (channel_type != NL80211_CHAN_NO_HT && | |
4267 | channel_type != NL80211_CHAN_HT20 && | |
4268 | channel_type != NL80211_CHAN_HT40PLUS && | |
4c476991 JB |
4269 | channel_type != NL80211_CHAN_HT40MINUS) |
4270 | return -EINVAL; | |
252aa631 | 4271 | channel_type_valid = true; |
026331c4 JM |
4272 | } |
4273 | ||
4274 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
4275 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4c476991 JB |
4276 | if (chan == NULL) |
4277 | return -EINVAL; | |
026331c4 JM |
4278 | |
4279 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
4280 | if (!msg) |
4281 | return -ENOMEM; | |
026331c4 JM |
4282 | |
4283 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2e161f78 | 4284 | NL80211_CMD_FRAME); |
026331c4 JM |
4285 | |
4286 | if (IS_ERR(hdr)) { | |
4287 | err = PTR_ERR(hdr); | |
4288 | goto free_msg; | |
4289 | } | |
2e161f78 JB |
4290 | err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, channel_type, |
4291 | channel_type_valid, | |
4292 | nla_data(info->attrs[NL80211_ATTR_FRAME]), | |
4293 | nla_len(info->attrs[NL80211_ATTR_FRAME]), | |
4294 | &cookie); | |
026331c4 JM |
4295 | if (err) |
4296 | goto free_msg; | |
4297 | ||
4298 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
4299 | ||
4300 | genlmsg_end(msg, hdr); | |
4c476991 | 4301 | return genlmsg_reply(msg, info); |
026331c4 JM |
4302 | |
4303 | nla_put_failure: | |
4304 | err = -ENOBUFS; | |
4305 | free_msg: | |
4306 | nlmsg_free(msg); | |
026331c4 JM |
4307 | return err; |
4308 | } | |
4309 | ||
ffb9eb3d KV |
4310 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) |
4311 | { | |
4c476991 | 4312 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d | 4313 | struct wireless_dev *wdev; |
4c476991 | 4314 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
4315 | u8 ps_state; |
4316 | bool state; | |
4317 | int err; | |
4318 | ||
4c476991 JB |
4319 | if (!info->attrs[NL80211_ATTR_PS_STATE]) |
4320 | return -EINVAL; | |
ffb9eb3d KV |
4321 | |
4322 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); | |
4323 | ||
4c476991 JB |
4324 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) |
4325 | return -EINVAL; | |
ffb9eb3d KV |
4326 | |
4327 | wdev = dev->ieee80211_ptr; | |
4328 | ||
4c476991 JB |
4329 | if (!rdev->ops->set_power_mgmt) |
4330 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
4331 | |
4332 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; | |
4333 | ||
4334 | if (state == wdev->ps) | |
4c476991 | 4335 | return 0; |
ffb9eb3d | 4336 | |
4c476991 JB |
4337 | err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state, |
4338 | wdev->ps_timeout); | |
4339 | if (!err) | |
4340 | wdev->ps = state; | |
ffb9eb3d KV |
4341 | return err; |
4342 | } | |
4343 | ||
4344 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) | |
4345 | { | |
4c476991 | 4346 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d KV |
4347 | enum nl80211_ps_state ps_state; |
4348 | struct wireless_dev *wdev; | |
4c476991 | 4349 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
4350 | struct sk_buff *msg; |
4351 | void *hdr; | |
4352 | int err; | |
4353 | ||
ffb9eb3d KV |
4354 | wdev = dev->ieee80211_ptr; |
4355 | ||
4c476991 JB |
4356 | if (!rdev->ops->set_power_mgmt) |
4357 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
4358 | |
4359 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
4360 | if (!msg) |
4361 | return -ENOMEM; | |
ffb9eb3d KV |
4362 | |
4363 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
4364 | NL80211_CMD_GET_POWER_SAVE); | |
4365 | if (!hdr) { | |
4c476991 | 4366 | err = -ENOBUFS; |
ffb9eb3d KV |
4367 | goto free_msg; |
4368 | } | |
4369 | ||
4370 | if (wdev->ps) | |
4371 | ps_state = NL80211_PS_ENABLED; | |
4372 | else | |
4373 | ps_state = NL80211_PS_DISABLED; | |
4374 | ||
4375 | NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state); | |
4376 | ||
4377 | genlmsg_end(msg, hdr); | |
4c476991 | 4378 | return genlmsg_reply(msg, info); |
ffb9eb3d | 4379 | |
4c476991 | 4380 | nla_put_failure: |
ffb9eb3d | 4381 | err = -ENOBUFS; |
4c476991 | 4382 | free_msg: |
ffb9eb3d | 4383 | nlmsg_free(msg); |
ffb9eb3d KV |
4384 | return err; |
4385 | } | |
4386 | ||
d6dc1a38 JO |
4387 | static struct nla_policy |
4388 | nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = { | |
4389 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, | |
4390 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, | |
4391 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
4392 | }; | |
4393 | ||
4394 | static int nl80211_set_cqm_rssi(struct genl_info *info, | |
4395 | s32 threshold, u32 hysteresis) | |
4396 | { | |
4c476991 | 4397 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
d6dc1a38 | 4398 | struct wireless_dev *wdev; |
4c476991 | 4399 | struct net_device *dev = info->user_ptr[1]; |
d6dc1a38 JO |
4400 | |
4401 | if (threshold > 0) | |
4402 | return -EINVAL; | |
4403 | ||
d6dc1a38 JO |
4404 | wdev = dev->ieee80211_ptr; |
4405 | ||
4c476991 JB |
4406 | if (!rdev->ops->set_cqm_rssi_config) |
4407 | return -EOPNOTSUPP; | |
d6dc1a38 | 4408 | |
074ac8df | 4409 | if (wdev->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
4410 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) |
4411 | return -EOPNOTSUPP; | |
d6dc1a38 | 4412 | |
4c476991 JB |
4413 | return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev, |
4414 | threshold, hysteresis); | |
d6dc1a38 JO |
4415 | } |
4416 | ||
4417 | static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) | |
4418 | { | |
4419 | struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; | |
4420 | struct nlattr *cqm; | |
4421 | int err; | |
4422 | ||
4423 | cqm = info->attrs[NL80211_ATTR_CQM]; | |
4424 | if (!cqm) { | |
4425 | err = -EINVAL; | |
4426 | goto out; | |
4427 | } | |
4428 | ||
4429 | err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm, | |
4430 | nl80211_attr_cqm_policy); | |
4431 | if (err) | |
4432 | goto out; | |
4433 | ||
4434 | if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && | |
4435 | attrs[NL80211_ATTR_CQM_RSSI_HYST]) { | |
4436 | s32 threshold; | |
4437 | u32 hysteresis; | |
4438 | threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); | |
4439 | hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); | |
4440 | err = nl80211_set_cqm_rssi(info, threshold, hysteresis); | |
4441 | } else | |
4442 | err = -EINVAL; | |
4443 | ||
4444 | out: | |
4445 | return err; | |
4446 | } | |
4447 | ||
4c476991 JB |
4448 | #define NL80211_FLAG_NEED_WIPHY 0x01 |
4449 | #define NL80211_FLAG_NEED_NETDEV 0x02 | |
4450 | #define NL80211_FLAG_NEED_RTNL 0x04 | |
41265714 JB |
4451 | #define NL80211_FLAG_CHECK_NETDEV_UP 0x08 |
4452 | #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\ | |
4453 | NL80211_FLAG_CHECK_NETDEV_UP) | |
4c476991 JB |
4454 | |
4455 | static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, | |
4456 | struct genl_info *info) | |
4457 | { | |
4458 | struct cfg80211_registered_device *rdev; | |
4459 | struct net_device *dev; | |
4460 | int err; | |
4461 | bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL; | |
4462 | ||
4463 | if (rtnl) | |
4464 | rtnl_lock(); | |
4465 | ||
4466 | if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) { | |
4467 | rdev = cfg80211_get_dev_from_info(info); | |
4468 | if (IS_ERR(rdev)) { | |
4469 | if (rtnl) | |
4470 | rtnl_unlock(); | |
4471 | return PTR_ERR(rdev); | |
4472 | } | |
4473 | info->user_ptr[0] = rdev; | |
4474 | } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) { | |
4475 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4476 | if (err) { | |
4477 | if (rtnl) | |
4478 | rtnl_unlock(); | |
4479 | return err; | |
4480 | } | |
41265714 JB |
4481 | if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP && |
4482 | !netif_running(dev)) { | |
d537f5fd JB |
4483 | cfg80211_unlock_rdev(rdev); |
4484 | dev_put(dev); | |
41265714 JB |
4485 | if (rtnl) |
4486 | rtnl_unlock(); | |
4487 | return -ENETDOWN; | |
4488 | } | |
4c476991 JB |
4489 | info->user_ptr[0] = rdev; |
4490 | info->user_ptr[1] = dev; | |
4491 | } | |
4492 | ||
4493 | return 0; | |
4494 | } | |
4495 | ||
4496 | static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, | |
4497 | struct genl_info *info) | |
4498 | { | |
4499 | if (info->user_ptr[0]) | |
4500 | cfg80211_unlock_rdev(info->user_ptr[0]); | |
4501 | if (info->user_ptr[1]) | |
4502 | dev_put(info->user_ptr[1]); | |
4503 | if (ops->internal_flags & NL80211_FLAG_NEED_RTNL) | |
4504 | rtnl_unlock(); | |
4505 | } | |
4506 | ||
55682965 JB |
4507 | static struct genl_ops nl80211_ops[] = { |
4508 | { | |
4509 | .cmd = NL80211_CMD_GET_WIPHY, | |
4510 | .doit = nl80211_get_wiphy, | |
4511 | .dumpit = nl80211_dump_wiphy, | |
4512 | .policy = nl80211_policy, | |
4513 | /* can be retrieved by unprivileged users */ | |
4c476991 | 4514 | .internal_flags = NL80211_FLAG_NEED_WIPHY, |
55682965 JB |
4515 | }, |
4516 | { | |
4517 | .cmd = NL80211_CMD_SET_WIPHY, | |
4518 | .doit = nl80211_set_wiphy, | |
4519 | .policy = nl80211_policy, | |
4520 | .flags = GENL_ADMIN_PERM, | |
4c476991 | 4521 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
55682965 JB |
4522 | }, |
4523 | { | |
4524 | .cmd = NL80211_CMD_GET_INTERFACE, | |
4525 | .doit = nl80211_get_interface, | |
4526 | .dumpit = nl80211_dump_interface, | |
4527 | .policy = nl80211_policy, | |
4528 | /* can be retrieved by unprivileged users */ | |
4c476991 | 4529 | .internal_flags = NL80211_FLAG_NEED_NETDEV, |
55682965 JB |
4530 | }, |
4531 | { | |
4532 | .cmd = NL80211_CMD_SET_INTERFACE, | |
4533 | .doit = nl80211_set_interface, | |
4534 | .policy = nl80211_policy, | |
4535 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4536 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4537 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
4538 | }, |
4539 | { | |
4540 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
4541 | .doit = nl80211_new_interface, | |
4542 | .policy = nl80211_policy, | |
4543 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4544 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
4545 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
4546 | }, |
4547 | { | |
4548 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
4549 | .doit = nl80211_del_interface, | |
4550 | .policy = nl80211_policy, | |
41ade00f | 4551 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4552 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4553 | NL80211_FLAG_NEED_RTNL, | |
41ade00f JB |
4554 | }, |
4555 | { | |
4556 | .cmd = NL80211_CMD_GET_KEY, | |
4557 | .doit = nl80211_get_key, | |
4558 | .policy = nl80211_policy, | |
4559 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4560 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4561 | NL80211_FLAG_NEED_RTNL, | |
41ade00f JB |
4562 | }, |
4563 | { | |
4564 | .cmd = NL80211_CMD_SET_KEY, | |
4565 | .doit = nl80211_set_key, | |
4566 | .policy = nl80211_policy, | |
4567 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4568 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4569 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
4570 | }, |
4571 | { | |
4572 | .cmd = NL80211_CMD_NEW_KEY, | |
4573 | .doit = nl80211_new_key, | |
4574 | .policy = nl80211_policy, | |
4575 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4576 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4577 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
4578 | }, |
4579 | { | |
4580 | .cmd = NL80211_CMD_DEL_KEY, | |
4581 | .doit = nl80211_del_key, | |
4582 | .policy = nl80211_policy, | |
55682965 | 4583 | .flags = GENL_ADMIN_PERM, |
41265714 | 4584 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4585 | NL80211_FLAG_NEED_RTNL, |
55682965 | 4586 | }, |
ed1b6cc7 JB |
4587 | { |
4588 | .cmd = NL80211_CMD_SET_BEACON, | |
4589 | .policy = nl80211_policy, | |
4590 | .flags = GENL_ADMIN_PERM, | |
4591 | .doit = nl80211_addset_beacon, | |
4c476991 JB |
4592 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4593 | NL80211_FLAG_NEED_RTNL, | |
ed1b6cc7 JB |
4594 | }, |
4595 | { | |
4596 | .cmd = NL80211_CMD_NEW_BEACON, | |
4597 | .policy = nl80211_policy, | |
4598 | .flags = GENL_ADMIN_PERM, | |
4599 | .doit = nl80211_addset_beacon, | |
4c476991 JB |
4600 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4601 | NL80211_FLAG_NEED_RTNL, | |
ed1b6cc7 JB |
4602 | }, |
4603 | { | |
4604 | .cmd = NL80211_CMD_DEL_BEACON, | |
4605 | .policy = nl80211_policy, | |
4606 | .flags = GENL_ADMIN_PERM, | |
4607 | .doit = nl80211_del_beacon, | |
4c476991 JB |
4608 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4609 | NL80211_FLAG_NEED_RTNL, | |
ed1b6cc7 | 4610 | }, |
5727ef1b JB |
4611 | { |
4612 | .cmd = NL80211_CMD_GET_STATION, | |
4613 | .doit = nl80211_get_station, | |
2ec600d6 | 4614 | .dumpit = nl80211_dump_station, |
5727ef1b | 4615 | .policy = nl80211_policy, |
4c476991 JB |
4616 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4617 | NL80211_FLAG_NEED_RTNL, | |
5727ef1b JB |
4618 | }, |
4619 | { | |
4620 | .cmd = NL80211_CMD_SET_STATION, | |
4621 | .doit = nl80211_set_station, | |
4622 | .policy = nl80211_policy, | |
4623 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4624 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4625 | NL80211_FLAG_NEED_RTNL, | |
5727ef1b JB |
4626 | }, |
4627 | { | |
4628 | .cmd = NL80211_CMD_NEW_STATION, | |
4629 | .doit = nl80211_new_station, | |
4630 | .policy = nl80211_policy, | |
4631 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4632 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4633 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
4634 | }, |
4635 | { | |
4636 | .cmd = NL80211_CMD_DEL_STATION, | |
4637 | .doit = nl80211_del_station, | |
4638 | .policy = nl80211_policy, | |
2ec600d6 | 4639 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4640 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4641 | NL80211_FLAG_NEED_RTNL, | |
2ec600d6 LCC |
4642 | }, |
4643 | { | |
4644 | .cmd = NL80211_CMD_GET_MPATH, | |
4645 | .doit = nl80211_get_mpath, | |
4646 | .dumpit = nl80211_dump_mpath, | |
4647 | .policy = nl80211_policy, | |
4648 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4649 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4650 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
4651 | }, |
4652 | { | |
4653 | .cmd = NL80211_CMD_SET_MPATH, | |
4654 | .doit = nl80211_set_mpath, | |
4655 | .policy = nl80211_policy, | |
4656 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4657 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4658 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
4659 | }, |
4660 | { | |
4661 | .cmd = NL80211_CMD_NEW_MPATH, | |
4662 | .doit = nl80211_new_mpath, | |
4663 | .policy = nl80211_policy, | |
4664 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4665 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4666 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
4667 | }, |
4668 | { | |
4669 | .cmd = NL80211_CMD_DEL_MPATH, | |
4670 | .doit = nl80211_del_mpath, | |
4671 | .policy = nl80211_policy, | |
9f1ba906 | 4672 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4673 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4674 | NL80211_FLAG_NEED_RTNL, | |
9f1ba906 JM |
4675 | }, |
4676 | { | |
4677 | .cmd = NL80211_CMD_SET_BSS, | |
4678 | .doit = nl80211_set_bss, | |
4679 | .policy = nl80211_policy, | |
b2e1b302 | 4680 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4681 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4682 | NL80211_FLAG_NEED_RTNL, | |
b2e1b302 | 4683 | }, |
f130347c LR |
4684 | { |
4685 | .cmd = NL80211_CMD_GET_REG, | |
4686 | .doit = nl80211_get_reg, | |
4687 | .policy = nl80211_policy, | |
4688 | /* can be retrieved by unprivileged users */ | |
4689 | }, | |
b2e1b302 LR |
4690 | { |
4691 | .cmd = NL80211_CMD_SET_REG, | |
4692 | .doit = nl80211_set_reg, | |
4693 | .policy = nl80211_policy, | |
4694 | .flags = GENL_ADMIN_PERM, | |
4695 | }, | |
4696 | { | |
4697 | .cmd = NL80211_CMD_REQ_SET_REG, | |
4698 | .doit = nl80211_req_set_reg, | |
4699 | .policy = nl80211_policy, | |
93da9cc1 | 4700 | .flags = GENL_ADMIN_PERM, |
4701 | }, | |
4702 | { | |
4703 | .cmd = NL80211_CMD_GET_MESH_PARAMS, | |
4704 | .doit = nl80211_get_mesh_params, | |
4705 | .policy = nl80211_policy, | |
4706 | /* can be retrieved by unprivileged users */ | |
4c476991 JB |
4707 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4708 | NL80211_FLAG_NEED_RTNL, | |
93da9cc1 | 4709 | }, |
4710 | { | |
4711 | .cmd = NL80211_CMD_SET_MESH_PARAMS, | |
4712 | .doit = nl80211_set_mesh_params, | |
4713 | .policy = nl80211_policy, | |
9aed3cc1 | 4714 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4715 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4716 | NL80211_FLAG_NEED_RTNL, | |
9aed3cc1 | 4717 | }, |
2a519311 JB |
4718 | { |
4719 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
4720 | .doit = nl80211_trigger_scan, | |
4721 | .policy = nl80211_policy, | |
4722 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4723 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4724 | NL80211_FLAG_NEED_RTNL, |
2a519311 JB |
4725 | }, |
4726 | { | |
4727 | .cmd = NL80211_CMD_GET_SCAN, | |
4728 | .policy = nl80211_policy, | |
4729 | .dumpit = nl80211_dump_scan, | |
4730 | }, | |
636a5d36 JM |
4731 | { |
4732 | .cmd = NL80211_CMD_AUTHENTICATE, | |
4733 | .doit = nl80211_authenticate, | |
4734 | .policy = nl80211_policy, | |
4735 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4736 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4737 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
4738 | }, |
4739 | { | |
4740 | .cmd = NL80211_CMD_ASSOCIATE, | |
4741 | .doit = nl80211_associate, | |
4742 | .policy = nl80211_policy, | |
4743 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4744 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4745 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
4746 | }, |
4747 | { | |
4748 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
4749 | .doit = nl80211_deauthenticate, | |
4750 | .policy = nl80211_policy, | |
4751 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4752 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4753 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
4754 | }, |
4755 | { | |
4756 | .cmd = NL80211_CMD_DISASSOCIATE, | |
4757 | .doit = nl80211_disassociate, | |
4758 | .policy = nl80211_policy, | |
4759 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4760 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4761 | NL80211_FLAG_NEED_RTNL, |
636a5d36 | 4762 | }, |
04a773ad JB |
4763 | { |
4764 | .cmd = NL80211_CMD_JOIN_IBSS, | |
4765 | .doit = nl80211_join_ibss, | |
4766 | .policy = nl80211_policy, | |
4767 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4768 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4769 | NL80211_FLAG_NEED_RTNL, |
04a773ad JB |
4770 | }, |
4771 | { | |
4772 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
4773 | .doit = nl80211_leave_ibss, | |
4774 | .policy = nl80211_policy, | |
4775 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4776 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4777 | NL80211_FLAG_NEED_RTNL, |
04a773ad | 4778 | }, |
aff89a9b JB |
4779 | #ifdef CONFIG_NL80211_TESTMODE |
4780 | { | |
4781 | .cmd = NL80211_CMD_TESTMODE, | |
4782 | .doit = nl80211_testmode_do, | |
4783 | .policy = nl80211_policy, | |
4784 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4785 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
4786 | NL80211_FLAG_NEED_RTNL, | |
aff89a9b JB |
4787 | }, |
4788 | #endif | |
b23aa676 SO |
4789 | { |
4790 | .cmd = NL80211_CMD_CONNECT, | |
4791 | .doit = nl80211_connect, | |
4792 | .policy = nl80211_policy, | |
4793 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4794 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4795 | NL80211_FLAG_NEED_RTNL, |
b23aa676 SO |
4796 | }, |
4797 | { | |
4798 | .cmd = NL80211_CMD_DISCONNECT, | |
4799 | .doit = nl80211_disconnect, | |
4800 | .policy = nl80211_policy, | |
4801 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4802 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4803 | NL80211_FLAG_NEED_RTNL, |
b23aa676 | 4804 | }, |
463d0183 JB |
4805 | { |
4806 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
4807 | .doit = nl80211_wiphy_netns, | |
4808 | .policy = nl80211_policy, | |
4809 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4810 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
4811 | NL80211_FLAG_NEED_RTNL, | |
463d0183 | 4812 | }, |
61fa713c HS |
4813 | { |
4814 | .cmd = NL80211_CMD_GET_SURVEY, | |
4815 | .policy = nl80211_policy, | |
4816 | .dumpit = nl80211_dump_survey, | |
4817 | }, | |
67fbb16b SO |
4818 | { |
4819 | .cmd = NL80211_CMD_SET_PMKSA, | |
4820 | .doit = nl80211_setdel_pmksa, | |
4821 | .policy = nl80211_policy, | |
4822 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4823 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4824 | NL80211_FLAG_NEED_RTNL, | |
67fbb16b SO |
4825 | }, |
4826 | { | |
4827 | .cmd = NL80211_CMD_DEL_PMKSA, | |
4828 | .doit = nl80211_setdel_pmksa, | |
4829 | .policy = nl80211_policy, | |
4830 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4831 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4832 | NL80211_FLAG_NEED_RTNL, | |
67fbb16b SO |
4833 | }, |
4834 | { | |
4835 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
4836 | .doit = nl80211_flush_pmksa, | |
4837 | .policy = nl80211_policy, | |
4838 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4839 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4840 | NL80211_FLAG_NEED_RTNL, | |
67fbb16b | 4841 | }, |
9588bbd5 JM |
4842 | { |
4843 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
4844 | .doit = nl80211_remain_on_channel, | |
4845 | .policy = nl80211_policy, | |
4846 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4847 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4848 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 JM |
4849 | }, |
4850 | { | |
4851 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
4852 | .doit = nl80211_cancel_remain_on_channel, | |
4853 | .policy = nl80211_policy, | |
4854 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4855 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4856 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 | 4857 | }, |
13ae75b1 JM |
4858 | { |
4859 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, | |
4860 | .doit = nl80211_set_tx_bitrate_mask, | |
4861 | .policy = nl80211_policy, | |
4862 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4863 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4864 | NL80211_FLAG_NEED_RTNL, | |
13ae75b1 | 4865 | }, |
026331c4 | 4866 | { |
2e161f78 JB |
4867 | .cmd = NL80211_CMD_REGISTER_FRAME, |
4868 | .doit = nl80211_register_mgmt, | |
026331c4 JM |
4869 | .policy = nl80211_policy, |
4870 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4871 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4872 | NL80211_FLAG_NEED_RTNL, | |
026331c4 JM |
4873 | }, |
4874 | { | |
2e161f78 JB |
4875 | .cmd = NL80211_CMD_FRAME, |
4876 | .doit = nl80211_tx_mgmt, | |
026331c4 JM |
4877 | .policy = nl80211_policy, |
4878 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4879 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4880 | NL80211_FLAG_NEED_RTNL, |
026331c4 | 4881 | }, |
ffb9eb3d KV |
4882 | { |
4883 | .cmd = NL80211_CMD_SET_POWER_SAVE, | |
4884 | .doit = nl80211_set_power_save, | |
4885 | .policy = nl80211_policy, | |
4886 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4887 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4888 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d KV |
4889 | }, |
4890 | { | |
4891 | .cmd = NL80211_CMD_GET_POWER_SAVE, | |
4892 | .doit = nl80211_get_power_save, | |
4893 | .policy = nl80211_policy, | |
4894 | /* can be retrieved by unprivileged users */ | |
4c476991 JB |
4895 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4896 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d | 4897 | }, |
d6dc1a38 JO |
4898 | { |
4899 | .cmd = NL80211_CMD_SET_CQM, | |
4900 | .doit = nl80211_set_cqm, | |
4901 | .policy = nl80211_policy, | |
4902 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4903 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4904 | NL80211_FLAG_NEED_RTNL, | |
d6dc1a38 | 4905 | }, |
f444de05 JB |
4906 | { |
4907 | .cmd = NL80211_CMD_SET_CHANNEL, | |
4908 | .doit = nl80211_set_channel, | |
4909 | .policy = nl80211_policy, | |
4910 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4911 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4912 | NL80211_FLAG_NEED_RTNL, | |
f444de05 | 4913 | }, |
e8347eba BJ |
4914 | { |
4915 | .cmd = NL80211_CMD_SET_WDS_PEER, | |
4916 | .doit = nl80211_set_wds_peer, | |
4917 | .policy = nl80211_policy, | |
4918 | .flags = GENL_ADMIN_PERM, | |
43b19952 JB |
4919 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4920 | NL80211_FLAG_NEED_RTNL, | |
e8347eba | 4921 | }, |
55682965 | 4922 | }; |
9588bbd5 | 4923 | |
6039f6d2 JM |
4924 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
4925 | .name = "mlme", | |
4926 | }; | |
55682965 JB |
4927 | |
4928 | /* multicast groups */ | |
4929 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
4930 | .name = "config", | |
4931 | }; | |
2a519311 JB |
4932 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
4933 | .name = "scan", | |
4934 | }; | |
73d54c9e LR |
4935 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
4936 | .name = "regulatory", | |
4937 | }; | |
55682965 JB |
4938 | |
4939 | /* notification functions */ | |
4940 | ||
4941 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
4942 | { | |
4943 | struct sk_buff *msg; | |
4944 | ||
fd2120ca | 4945 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
4946 | if (!msg) |
4947 | return; | |
4948 | ||
4949 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
4950 | nlmsg_free(msg); | |
4951 | return; | |
4952 | } | |
4953 | ||
463d0183 JB |
4954 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
4955 | nl80211_config_mcgrp.id, GFP_KERNEL); | |
55682965 JB |
4956 | } |
4957 | ||
362a415d JB |
4958 | static int nl80211_add_scan_req(struct sk_buff *msg, |
4959 | struct cfg80211_registered_device *rdev) | |
4960 | { | |
4961 | struct cfg80211_scan_request *req = rdev->scan_req; | |
4962 | struct nlattr *nest; | |
4963 | int i; | |
4964 | ||
667503dd JB |
4965 | ASSERT_RDEV_LOCK(rdev); |
4966 | ||
362a415d JB |
4967 | if (WARN_ON(!req)) |
4968 | return 0; | |
4969 | ||
4970 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
4971 | if (!nest) | |
4972 | goto nla_put_failure; | |
4973 | for (i = 0; i < req->n_ssids; i++) | |
4974 | NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid); | |
4975 | nla_nest_end(msg, nest); | |
4976 | ||
4977 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
4978 | if (!nest) | |
4979 | goto nla_put_failure; | |
4980 | for (i = 0; i < req->n_channels; i++) | |
4981 | NLA_PUT_U32(msg, i, req->channels[i]->center_freq); | |
4982 | nla_nest_end(msg, nest); | |
4983 | ||
4984 | if (req->ie) | |
4985 | NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie); | |
4986 | ||
4987 | return 0; | |
4988 | nla_put_failure: | |
4989 | return -ENOBUFS; | |
4990 | } | |
4991 | ||
a538e2d5 JB |
4992 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
4993 | struct cfg80211_registered_device *rdev, | |
4994 | struct net_device *netdev, | |
4995 | u32 pid, u32 seq, int flags, | |
4996 | u32 cmd) | |
2a519311 JB |
4997 | { |
4998 | void *hdr; | |
4999 | ||
5000 | hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); | |
5001 | if (!hdr) | |
5002 | return -1; | |
5003 | ||
b5850a7a | 5004 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
2a519311 JB |
5005 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); |
5006 | ||
362a415d JB |
5007 | /* ignore errors and send incomplete event anyway */ |
5008 | nl80211_add_scan_req(msg, rdev); | |
2a519311 JB |
5009 | |
5010 | return genlmsg_end(msg, hdr); | |
5011 | ||
5012 | nla_put_failure: | |
5013 | genlmsg_cancel(msg, hdr); | |
5014 | return -EMSGSIZE; | |
5015 | } | |
5016 | ||
a538e2d5 JB |
5017 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
5018 | struct net_device *netdev) | |
5019 | { | |
5020 | struct sk_buff *msg; | |
5021 | ||
5022 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
5023 | if (!msg) | |
5024 | return; | |
5025 | ||
5026 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
5027 | NL80211_CMD_TRIGGER_SCAN) < 0) { | |
5028 | nlmsg_free(msg); | |
5029 | return; | |
5030 | } | |
5031 | ||
463d0183 JB |
5032 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5033 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
a538e2d5 JB |
5034 | } |
5035 | ||
2a519311 JB |
5036 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, |
5037 | struct net_device *netdev) | |
5038 | { | |
5039 | struct sk_buff *msg; | |
5040 | ||
fd2120ca | 5041 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
5042 | if (!msg) |
5043 | return; | |
5044 | ||
a538e2d5 JB |
5045 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
5046 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
2a519311 JB |
5047 | nlmsg_free(msg); |
5048 | return; | |
5049 | } | |
5050 | ||
463d0183 JB |
5051 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5052 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
5053 | } |
5054 | ||
5055 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
5056 | struct net_device *netdev) | |
5057 | { | |
5058 | struct sk_buff *msg; | |
5059 | ||
fd2120ca | 5060 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
5061 | if (!msg) |
5062 | return; | |
5063 | ||
a538e2d5 JB |
5064 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
5065 | NL80211_CMD_SCAN_ABORTED) < 0) { | |
2a519311 JB |
5066 | nlmsg_free(msg); |
5067 | return; | |
5068 | } | |
5069 | ||
463d0183 JB |
5070 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5071 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
5072 | } |
5073 | ||
73d54c9e LR |
5074 | /* |
5075 | * This can happen on global regulatory changes or device specific settings | |
5076 | * based on custom world regulatory domains. | |
5077 | */ | |
5078 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
5079 | { | |
5080 | struct sk_buff *msg; | |
5081 | void *hdr; | |
5082 | ||
fd2120ca | 5083 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
73d54c9e LR |
5084 | if (!msg) |
5085 | return; | |
5086 | ||
5087 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
5088 | if (!hdr) { | |
5089 | nlmsg_free(msg); | |
5090 | return; | |
5091 | } | |
5092 | ||
5093 | /* Userspace can always count this one always being set */ | |
5094 | NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator); | |
5095 | ||
5096 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') | |
5097 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5098 | NL80211_REGDOM_TYPE_WORLD); | |
5099 | else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') | |
5100 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5101 | NL80211_REGDOM_TYPE_CUSTOM_WORLD); | |
5102 | else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
5103 | request->intersect) | |
5104 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5105 | NL80211_REGDOM_TYPE_INTERSECTION); | |
5106 | else { | |
5107 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5108 | NL80211_REGDOM_TYPE_COUNTRY); | |
5109 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2); | |
5110 | } | |
5111 | ||
5112 | if (wiphy_idx_valid(request->wiphy_idx)) | |
5113 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx); | |
5114 | ||
5115 | if (genlmsg_end(msg, hdr) < 0) { | |
5116 | nlmsg_free(msg); | |
5117 | return; | |
5118 | } | |
5119 | ||
bc43b28c | 5120 | rcu_read_lock(); |
463d0183 | 5121 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, |
bc43b28c JB |
5122 | GFP_ATOMIC); |
5123 | rcu_read_unlock(); | |
73d54c9e LR |
5124 | |
5125 | return; | |
5126 | ||
5127 | nla_put_failure: | |
5128 | genlmsg_cancel(msg, hdr); | |
5129 | nlmsg_free(msg); | |
5130 | } | |
5131 | ||
6039f6d2 JM |
5132 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
5133 | struct net_device *netdev, | |
5134 | const u8 *buf, size_t len, | |
e6d6e342 | 5135 | enum nl80211_commands cmd, gfp_t gfp) |
6039f6d2 JM |
5136 | { |
5137 | struct sk_buff *msg; | |
5138 | void *hdr; | |
5139 | ||
e6d6e342 | 5140 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
5141 | if (!msg) |
5142 | return; | |
5143 | ||
5144 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5145 | if (!hdr) { | |
5146 | nlmsg_free(msg); | |
5147 | return; | |
5148 | } | |
5149 | ||
5150 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5151 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5152 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5153 | ||
5154 | if (genlmsg_end(msg, hdr) < 0) { | |
5155 | nlmsg_free(msg); | |
5156 | return; | |
5157 | } | |
5158 | ||
463d0183 JB |
5159 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5160 | nl80211_mlme_mcgrp.id, gfp); | |
6039f6d2 JM |
5161 | return; |
5162 | ||
5163 | nla_put_failure: | |
5164 | genlmsg_cancel(msg, hdr); | |
5165 | nlmsg_free(msg); | |
5166 | } | |
5167 | ||
5168 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5169 | struct net_device *netdev, const u8 *buf, |
5170 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
5171 | { |
5172 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5173 | NL80211_CMD_AUTHENTICATE, gfp); |
6039f6d2 JM |
5174 | } |
5175 | ||
5176 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
5177 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 5178 | size_t len, gfp_t gfp) |
6039f6d2 | 5179 | { |
e6d6e342 JB |
5180 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
5181 | NL80211_CMD_ASSOCIATE, gfp); | |
6039f6d2 JM |
5182 | } |
5183 | ||
53b46b84 | 5184 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
5185 | struct net_device *netdev, const u8 *buf, |
5186 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
5187 | { |
5188 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5189 | NL80211_CMD_DEAUTHENTICATE, gfp); |
6039f6d2 JM |
5190 | } |
5191 | ||
53b46b84 JM |
5192 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
5193 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 5194 | size_t len, gfp_t gfp) |
6039f6d2 JM |
5195 | { |
5196 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5197 | NL80211_CMD_DISASSOCIATE, gfp); |
6039f6d2 JM |
5198 | } |
5199 | ||
1b06bb40 LR |
5200 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
5201 | struct net_device *netdev, int cmd, | |
e6d6e342 | 5202 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
5203 | { |
5204 | struct sk_buff *msg; | |
5205 | void *hdr; | |
5206 | ||
e6d6e342 | 5207 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
5208 | if (!msg) |
5209 | return; | |
5210 | ||
5211 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5212 | if (!hdr) { | |
5213 | nlmsg_free(msg); | |
5214 | return; | |
5215 | } | |
5216 | ||
5217 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5218 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5219 | NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT); | |
5220 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5221 | ||
5222 | if (genlmsg_end(msg, hdr) < 0) { | |
5223 | nlmsg_free(msg); | |
5224 | return; | |
5225 | } | |
5226 | ||
463d0183 JB |
5227 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5228 | nl80211_mlme_mcgrp.id, gfp); | |
1965c853 JM |
5229 | return; |
5230 | ||
5231 | nla_put_failure: | |
5232 | genlmsg_cancel(msg, hdr); | |
5233 | nlmsg_free(msg); | |
5234 | } | |
5235 | ||
5236 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5237 | struct net_device *netdev, const u8 *addr, |
5238 | gfp_t gfp) | |
1965c853 JM |
5239 | { |
5240 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 5241 | addr, gfp); |
1965c853 JM |
5242 | } |
5243 | ||
5244 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5245 | struct net_device *netdev, const u8 *addr, |
5246 | gfp_t gfp) | |
1965c853 | 5247 | { |
e6d6e342 JB |
5248 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
5249 | addr, gfp); | |
1965c853 JM |
5250 | } |
5251 | ||
b23aa676 SO |
5252 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
5253 | struct net_device *netdev, const u8 *bssid, | |
5254 | const u8 *req_ie, size_t req_ie_len, | |
5255 | const u8 *resp_ie, size_t resp_ie_len, | |
5256 | u16 status, gfp_t gfp) | |
5257 | { | |
5258 | struct sk_buff *msg; | |
5259 | void *hdr; | |
5260 | ||
5261 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5262 | if (!msg) | |
5263 | return; | |
5264 | ||
5265 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
5266 | if (!hdr) { | |
5267 | nlmsg_free(msg); | |
5268 | return; | |
5269 | } | |
5270 | ||
5271 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5272 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5273 | if (bssid) | |
5274 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5275 | NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status); | |
5276 | if (req_ie) | |
5277 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
5278 | if (resp_ie) | |
5279 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
5280 | ||
5281 | if (genlmsg_end(msg, hdr) < 0) { | |
5282 | nlmsg_free(msg); | |
5283 | return; | |
5284 | } | |
5285 | ||
463d0183 JB |
5286 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5287 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
5288 | return; |
5289 | ||
5290 | nla_put_failure: | |
5291 | genlmsg_cancel(msg, hdr); | |
5292 | nlmsg_free(msg); | |
5293 | ||
5294 | } | |
5295 | ||
5296 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
5297 | struct net_device *netdev, const u8 *bssid, | |
5298 | const u8 *req_ie, size_t req_ie_len, | |
5299 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
5300 | { | |
5301 | struct sk_buff *msg; | |
5302 | void *hdr; | |
5303 | ||
5304 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5305 | if (!msg) | |
5306 | return; | |
5307 | ||
5308 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
5309 | if (!hdr) { | |
5310 | nlmsg_free(msg); | |
5311 | return; | |
5312 | } | |
5313 | ||
5314 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5315 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5316 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5317 | if (req_ie) | |
5318 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
5319 | if (resp_ie) | |
5320 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
5321 | ||
5322 | if (genlmsg_end(msg, hdr) < 0) { | |
5323 | nlmsg_free(msg); | |
5324 | return; | |
5325 | } | |
5326 | ||
463d0183 JB |
5327 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5328 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
5329 | return; |
5330 | ||
5331 | nla_put_failure: | |
5332 | genlmsg_cancel(msg, hdr); | |
5333 | nlmsg_free(msg); | |
5334 | ||
5335 | } | |
5336 | ||
5337 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
5338 | struct net_device *netdev, u16 reason, | |
667503dd | 5339 | const u8 *ie, size_t ie_len, bool from_ap) |
b23aa676 SO |
5340 | { |
5341 | struct sk_buff *msg; | |
5342 | void *hdr; | |
5343 | ||
667503dd | 5344 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
b23aa676 SO |
5345 | if (!msg) |
5346 | return; | |
5347 | ||
5348 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
5349 | if (!hdr) { | |
5350 | nlmsg_free(msg); | |
5351 | return; | |
5352 | } | |
5353 | ||
5354 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5355 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5356 | if (from_ap && reason) | |
5357 | NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason); | |
5358 | if (from_ap) | |
5359 | NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP); | |
5360 | if (ie) | |
5361 | NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie); | |
5362 | ||
5363 | if (genlmsg_end(msg, hdr) < 0) { | |
5364 | nlmsg_free(msg); | |
5365 | return; | |
5366 | } | |
5367 | ||
463d0183 JB |
5368 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5369 | nl80211_mlme_mcgrp.id, GFP_KERNEL); | |
b23aa676 SO |
5370 | return; |
5371 | ||
5372 | nla_put_failure: | |
5373 | genlmsg_cancel(msg, hdr); | |
5374 | nlmsg_free(msg); | |
5375 | ||
5376 | } | |
5377 | ||
04a773ad JB |
5378 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
5379 | struct net_device *netdev, const u8 *bssid, | |
5380 | gfp_t gfp) | |
5381 | { | |
5382 | struct sk_buff *msg; | |
5383 | void *hdr; | |
5384 | ||
fd2120ca | 5385 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
5386 | if (!msg) |
5387 | return; | |
5388 | ||
5389 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
5390 | if (!hdr) { | |
5391 | nlmsg_free(msg); | |
5392 | return; | |
5393 | } | |
5394 | ||
5395 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5396 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5397 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5398 | ||
5399 | if (genlmsg_end(msg, hdr) < 0) { | |
5400 | nlmsg_free(msg); | |
5401 | return; | |
5402 | } | |
5403 | ||
463d0183 JB |
5404 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5405 | nl80211_mlme_mcgrp.id, gfp); | |
04a773ad JB |
5406 | return; |
5407 | ||
5408 | nla_put_failure: | |
5409 | genlmsg_cancel(msg, hdr); | |
5410 | nlmsg_free(msg); | |
5411 | } | |
5412 | ||
a3b8b056 JM |
5413 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
5414 | struct net_device *netdev, const u8 *addr, | |
5415 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 5416 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
5417 | { |
5418 | struct sk_buff *msg; | |
5419 | void *hdr; | |
5420 | ||
e6d6e342 | 5421 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
5422 | if (!msg) |
5423 | return; | |
5424 | ||
5425 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
5426 | if (!hdr) { | |
5427 | nlmsg_free(msg); | |
5428 | return; | |
5429 | } | |
5430 | ||
5431 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5432 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5433 | if (addr) | |
5434 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5435 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type); | |
5436 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id); | |
5437 | if (tsc) | |
5438 | NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc); | |
5439 | ||
5440 | if (genlmsg_end(msg, hdr) < 0) { | |
5441 | nlmsg_free(msg); | |
5442 | return; | |
5443 | } | |
5444 | ||
463d0183 JB |
5445 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5446 | nl80211_mlme_mcgrp.id, gfp); | |
a3b8b056 JM |
5447 | return; |
5448 | ||
5449 | nla_put_failure: | |
5450 | genlmsg_cancel(msg, hdr); | |
5451 | nlmsg_free(msg); | |
5452 | } | |
5453 | ||
6bad8766 LR |
5454 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
5455 | struct ieee80211_channel *channel_before, | |
5456 | struct ieee80211_channel *channel_after) | |
5457 | { | |
5458 | struct sk_buff *msg; | |
5459 | void *hdr; | |
5460 | struct nlattr *nl_freq; | |
5461 | ||
fd2120ca | 5462 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
5463 | if (!msg) |
5464 | return; | |
5465 | ||
5466 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
5467 | if (!hdr) { | |
5468 | nlmsg_free(msg); | |
5469 | return; | |
5470 | } | |
5471 | ||
5472 | /* | |
5473 | * Since we are applying the beacon hint to a wiphy we know its | |
5474 | * wiphy_idx is valid | |
5475 | */ | |
5476 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)); | |
5477 | ||
5478 | /* Before */ | |
5479 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
5480 | if (!nl_freq) | |
5481 | goto nla_put_failure; | |
5482 | if (nl80211_msg_put_channel(msg, channel_before)) | |
5483 | goto nla_put_failure; | |
5484 | nla_nest_end(msg, nl_freq); | |
5485 | ||
5486 | /* After */ | |
5487 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
5488 | if (!nl_freq) | |
5489 | goto nla_put_failure; | |
5490 | if (nl80211_msg_put_channel(msg, channel_after)) | |
5491 | goto nla_put_failure; | |
5492 | nla_nest_end(msg, nl_freq); | |
5493 | ||
5494 | if (genlmsg_end(msg, hdr) < 0) { | |
5495 | nlmsg_free(msg); | |
5496 | return; | |
5497 | } | |
5498 | ||
463d0183 JB |
5499 | rcu_read_lock(); |
5500 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, | |
5501 | GFP_ATOMIC); | |
5502 | rcu_read_unlock(); | |
6bad8766 LR |
5503 | |
5504 | return; | |
5505 | ||
5506 | nla_put_failure: | |
5507 | genlmsg_cancel(msg, hdr); | |
5508 | nlmsg_free(msg); | |
5509 | } | |
5510 | ||
9588bbd5 JM |
5511 | static void nl80211_send_remain_on_chan_event( |
5512 | int cmd, struct cfg80211_registered_device *rdev, | |
5513 | struct net_device *netdev, u64 cookie, | |
5514 | struct ieee80211_channel *chan, | |
5515 | enum nl80211_channel_type channel_type, | |
5516 | unsigned int duration, gfp_t gfp) | |
5517 | { | |
5518 | struct sk_buff *msg; | |
5519 | void *hdr; | |
5520 | ||
5521 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
5522 | if (!msg) | |
5523 | return; | |
5524 | ||
5525 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5526 | if (!hdr) { | |
5527 | nlmsg_free(msg); | |
5528 | return; | |
5529 | } | |
5530 | ||
5531 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5532 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5533 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq); | |
5534 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type); | |
5535 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
5536 | ||
5537 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL) | |
5538 | NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); | |
5539 | ||
5540 | if (genlmsg_end(msg, hdr) < 0) { | |
5541 | nlmsg_free(msg); | |
5542 | return; | |
5543 | } | |
5544 | ||
5545 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5546 | nl80211_mlme_mcgrp.id, gfp); | |
5547 | return; | |
5548 | ||
5549 | nla_put_failure: | |
5550 | genlmsg_cancel(msg, hdr); | |
5551 | nlmsg_free(msg); | |
5552 | } | |
5553 | ||
5554 | void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev, | |
5555 | struct net_device *netdev, u64 cookie, | |
5556 | struct ieee80211_channel *chan, | |
5557 | enum nl80211_channel_type channel_type, | |
5558 | unsigned int duration, gfp_t gfp) | |
5559 | { | |
5560 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, | |
5561 | rdev, netdev, cookie, chan, | |
5562 | channel_type, duration, gfp); | |
5563 | } | |
5564 | ||
5565 | void nl80211_send_remain_on_channel_cancel( | |
5566 | struct cfg80211_registered_device *rdev, struct net_device *netdev, | |
5567 | u64 cookie, struct ieee80211_channel *chan, | |
5568 | enum nl80211_channel_type channel_type, gfp_t gfp) | |
5569 | { | |
5570 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
5571 | rdev, netdev, cookie, chan, | |
5572 | channel_type, 0, gfp); | |
5573 | } | |
5574 | ||
98b62183 JB |
5575 | void nl80211_send_sta_event(struct cfg80211_registered_device *rdev, |
5576 | struct net_device *dev, const u8 *mac_addr, | |
5577 | struct station_info *sinfo, gfp_t gfp) | |
5578 | { | |
5579 | struct sk_buff *msg; | |
5580 | ||
5581 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5582 | if (!msg) | |
5583 | return; | |
5584 | ||
5585 | if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) { | |
5586 | nlmsg_free(msg); | |
5587 | return; | |
5588 | } | |
5589 | ||
5590 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5591 | nl80211_mlme_mcgrp.id, gfp); | |
5592 | } | |
5593 | ||
2e161f78 JB |
5594 | int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, |
5595 | struct net_device *netdev, u32 nlpid, | |
5596 | int freq, const u8 *buf, size_t len, gfp_t gfp) | |
026331c4 JM |
5597 | { |
5598 | struct sk_buff *msg; | |
5599 | void *hdr; | |
5600 | int err; | |
5601 | ||
5602 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
5603 | if (!msg) | |
5604 | return -ENOMEM; | |
5605 | ||
2e161f78 | 5606 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
026331c4 JM |
5607 | if (!hdr) { |
5608 | nlmsg_free(msg); | |
5609 | return -ENOMEM; | |
5610 | } | |
5611 | ||
5612 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5613 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5614 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); | |
5615 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5616 | ||
5617 | err = genlmsg_end(msg, hdr); | |
5618 | if (err < 0) { | |
5619 | nlmsg_free(msg); | |
5620 | return err; | |
5621 | } | |
5622 | ||
5623 | err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid); | |
5624 | if (err < 0) | |
5625 | return err; | |
5626 | return 0; | |
5627 | ||
5628 | nla_put_failure: | |
5629 | genlmsg_cancel(msg, hdr); | |
5630 | nlmsg_free(msg); | |
5631 | return -ENOBUFS; | |
5632 | } | |
5633 | ||
2e161f78 JB |
5634 | void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev, |
5635 | struct net_device *netdev, u64 cookie, | |
5636 | const u8 *buf, size_t len, bool ack, | |
5637 | gfp_t gfp) | |
026331c4 JM |
5638 | { |
5639 | struct sk_buff *msg; | |
5640 | void *hdr; | |
5641 | ||
5642 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
5643 | if (!msg) | |
5644 | return; | |
5645 | ||
2e161f78 | 5646 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS); |
026331c4 JM |
5647 | if (!hdr) { |
5648 | nlmsg_free(msg); | |
5649 | return; | |
5650 | } | |
5651 | ||
5652 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5653 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5654 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5655 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
5656 | if (ack) | |
5657 | NLA_PUT_FLAG(msg, NL80211_ATTR_ACK); | |
5658 | ||
5659 | if (genlmsg_end(msg, hdr) < 0) { | |
5660 | nlmsg_free(msg); | |
5661 | return; | |
5662 | } | |
5663 | ||
5664 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); | |
5665 | return; | |
5666 | ||
5667 | nla_put_failure: | |
5668 | genlmsg_cancel(msg, hdr); | |
5669 | nlmsg_free(msg); | |
5670 | } | |
5671 | ||
d6dc1a38 JO |
5672 | void |
5673 | nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev, | |
5674 | struct net_device *netdev, | |
5675 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
5676 | gfp_t gfp) | |
5677 | { | |
5678 | struct sk_buff *msg; | |
5679 | struct nlattr *pinfoattr; | |
5680 | void *hdr; | |
5681 | ||
5682 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5683 | if (!msg) | |
5684 | return; | |
5685 | ||
5686 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
5687 | if (!hdr) { | |
5688 | nlmsg_free(msg); | |
5689 | return; | |
5690 | } | |
5691 | ||
5692 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5693 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5694 | ||
5695 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
5696 | if (!pinfoattr) | |
5697 | goto nla_put_failure; | |
5698 | ||
5699 | NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, | |
5700 | rssi_event); | |
5701 | ||
5702 | nla_nest_end(msg, pinfoattr); | |
5703 | ||
5704 | if (genlmsg_end(msg, hdr) < 0) { | |
5705 | nlmsg_free(msg); | |
5706 | return; | |
5707 | } | |
5708 | ||
5709 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5710 | nl80211_mlme_mcgrp.id, gfp); | |
5711 | return; | |
5712 | ||
5713 | nla_put_failure: | |
5714 | genlmsg_cancel(msg, hdr); | |
5715 | nlmsg_free(msg); | |
5716 | } | |
5717 | ||
c063dbf5 JB |
5718 | void |
5719 | nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev, | |
5720 | struct net_device *netdev, const u8 *peer, | |
5721 | u32 num_packets, gfp_t gfp) | |
5722 | { | |
5723 | struct sk_buff *msg; | |
5724 | struct nlattr *pinfoattr; | |
5725 | void *hdr; | |
5726 | ||
5727 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5728 | if (!msg) | |
5729 | return; | |
5730 | ||
5731 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
5732 | if (!hdr) { | |
5733 | nlmsg_free(msg); | |
5734 | return; | |
5735 | } | |
5736 | ||
5737 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5738 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5739 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); | |
5740 | ||
5741 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
5742 | if (!pinfoattr) | |
5743 | goto nla_put_failure; | |
5744 | ||
5745 | NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets); | |
5746 | ||
5747 | nla_nest_end(msg, pinfoattr); | |
5748 | ||
5749 | if (genlmsg_end(msg, hdr) < 0) { | |
5750 | nlmsg_free(msg); | |
5751 | return; | |
5752 | } | |
5753 | ||
5754 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5755 | nl80211_mlme_mcgrp.id, gfp); | |
5756 | return; | |
5757 | ||
5758 | nla_put_failure: | |
5759 | genlmsg_cancel(msg, hdr); | |
5760 | nlmsg_free(msg); | |
5761 | } | |
5762 | ||
026331c4 JM |
5763 | static int nl80211_netlink_notify(struct notifier_block * nb, |
5764 | unsigned long state, | |
5765 | void *_notify) | |
5766 | { | |
5767 | struct netlink_notify *notify = _notify; | |
5768 | struct cfg80211_registered_device *rdev; | |
5769 | struct wireless_dev *wdev; | |
5770 | ||
5771 | if (state != NETLINK_URELEASE) | |
5772 | return NOTIFY_DONE; | |
5773 | ||
5774 | rcu_read_lock(); | |
5775 | ||
5776 | list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) | |
5777 | list_for_each_entry_rcu(wdev, &rdev->netdev_list, list) | |
2e161f78 | 5778 | cfg80211_mlme_unregister_socket(wdev, notify->pid); |
026331c4 JM |
5779 | |
5780 | rcu_read_unlock(); | |
5781 | ||
5782 | return NOTIFY_DONE; | |
5783 | } | |
5784 | ||
5785 | static struct notifier_block nl80211_netlink_notifier = { | |
5786 | .notifier_call = nl80211_netlink_notify, | |
5787 | }; | |
5788 | ||
55682965 JB |
5789 | /* initialisation/exit functions */ |
5790 | ||
5791 | int nl80211_init(void) | |
5792 | { | |
0d63cbb5 | 5793 | int err; |
55682965 | 5794 | |
0d63cbb5 MM |
5795 | err = genl_register_family_with_ops(&nl80211_fam, |
5796 | nl80211_ops, ARRAY_SIZE(nl80211_ops)); | |
55682965 JB |
5797 | if (err) |
5798 | return err; | |
5799 | ||
55682965 JB |
5800 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); |
5801 | if (err) | |
5802 | goto err_out; | |
5803 | ||
2a519311 JB |
5804 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); |
5805 | if (err) | |
5806 | goto err_out; | |
5807 | ||
73d54c9e LR |
5808 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); |
5809 | if (err) | |
5810 | goto err_out; | |
5811 | ||
6039f6d2 JM |
5812 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); |
5813 | if (err) | |
5814 | goto err_out; | |
5815 | ||
aff89a9b JB |
5816 | #ifdef CONFIG_NL80211_TESTMODE |
5817 | err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp); | |
5818 | if (err) | |
5819 | goto err_out; | |
5820 | #endif | |
5821 | ||
026331c4 JM |
5822 | err = netlink_register_notifier(&nl80211_netlink_notifier); |
5823 | if (err) | |
5824 | goto err_out; | |
5825 | ||
55682965 JB |
5826 | return 0; |
5827 | err_out: | |
5828 | genl_unregister_family(&nl80211_fam); | |
5829 | return err; | |
5830 | } | |
5831 | ||
5832 | void nl80211_exit(void) | |
5833 | { | |
026331c4 | 5834 | netlink_unregister_notifier(&nl80211_netlink_notifier); |
55682965 JB |
5835 | genl_unregister_family(&nl80211_fam); |
5836 | } |