projects / linux-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge remote-tracking branch 'wireless-next/master' into mac80211-next
[linux-block.git] / net / wireless / nl80211.c
CommitLineData
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
5fb628e9
JM		 26static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
27static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
30 int cipher_limit);
31
4c476991
JB		 32static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
36
55682965
JB		 37/* the netlink family */
38static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
463d0183 44 .netnsok = true,
4c476991
JB		 45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
55682965
JB		 47};
48
79c97e97 49/* internal helper: get rdev and dev */
00918d33
JB		 50static int get_rdev_dev_by_ifindex(struct net *netns, struct nlattr **attrs,
51 struct cfg80211_registered_device **rdev,
52 struct net_device **dev)
55682965
JB		 53{
54 int ifindex;
55
bba95fef 56 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 57 return -EINVAL;
58
bba95fef 59 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
00918d33 60 *dev = dev_get_by_index(netns, ifindex);
55682965
JB		 61 if (!*dev)
62 return -ENODEV;
63
00918d33 64 *rdev = cfg80211_get_dev_from_ifindex(netns, ifindex);
79c97e97 65 if (IS_ERR(*rdev)) {
55682965 66 dev_put(*dev);
79c97e97 67 return PTR_ERR(*rdev);
55682965
JB		 68 }
69
70 return 0;
71}
72
a9455408 73static struct cfg80211_registered_device *
878d9ec7 74__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 75{
7fee4778
JB		 76 struct cfg80211_registered_device *rdev = NULL, *tmp;
77 struct net_device *netdev;
a9455408
JB		 78
79 assert_cfg80211_lock();
80
878d9ec7
JB		 81 if (!attrs[NL80211_ATTR_WIPHY] &&
82 !attrs[NL80211_ATTR_IFINDEX])
7fee4778
JB		 83 return ERR_PTR(-EINVAL);
84
878d9ec7 85 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 86 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 87 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 88
878d9ec7
JB		 89 if (attrs[NL80211_ATTR_IFINDEX]) {
90 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
4f7eff10 91 netdev = dev_get_by_index(netns, ifindex);
7fee4778
JB		 92 if (netdev) {
93 if (netdev->ieee80211_ptr)
94 tmp = wiphy_to_dev(
95 netdev->ieee80211_ptr->wiphy);
96 else
97 tmp = NULL;
98
99 dev_put(netdev);
100
101 /* not wireless device -- return error */
102 if (!tmp)
103 return ERR_PTR(-EINVAL);
104
105 /* mismatch -- return error */
106 if (rdev && tmp != rdev)
107 return ERR_PTR(-EINVAL);
108
109 rdev = tmp;
a9455408 110 }
a9455408 111 }
a9455408 112
4f7eff10
JB		 113 if (!rdev)
114 return ERR_PTR(-ENODEV);
a9455408 115
4f7eff10
JB		 116 if (netns != wiphy_net(&rdev->wiphy))
117 return ERR_PTR(-ENODEV);
118
119 return rdev;
a9455408
JB		 120}
121
122/*
123 * This function returns a pointer to the driver
124 * that the genl_info item that is passed refers to.
125 * If successful, it returns non-NULL and also locks
126 * the driver's mutex!
127 *
128 * This means that you need to call cfg80211_unlock_rdev()
129 * before being allowed to acquire &cfg80211_mutex!
130 *
131 * This is necessary because we need to lock the global
132 * mutex to get an item off the list safely, and then
133 * we lock the rdev mutex so it doesn't go away under us.
134 *
135 * We don't want to keep cfg80211_mutex locked
136 * for all the time in order to allow requests on
137 * other interfaces to go through at the same time.
138 *
139 * The result of this can be a PTR_ERR and hence must
140 * be checked with IS_ERR() for errors.
141 */
142static struct cfg80211_registered_device *
4f7eff10 143cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408
JB		 144{
145 struct cfg80211_registered_device *rdev;
146
147 mutex_lock(&cfg80211_mutex);
878d9ec7 148 rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 149
150 /* if it is not an error we grab the lock on
151 * it to assure it won't be going away while
152 * we operate on it */
153 if (!IS_ERR(rdev))
154 mutex_lock(&rdev->mtx);
155
156 mutex_unlock(&cfg80211_mutex);
157
158 return rdev;
159}
160
55682965 161/* policy for the attributes */
b54452b0 162static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 163 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
164 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 165 .len = 20-1 },
31888487 166 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 167 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 168 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 169 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
170 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
171 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
172 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 173 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 174
175 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
176 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
177 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 178
e007b857
EP		 179 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
180 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 181
b9454e83 182 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 183 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
184 .len = WLAN_MAX_KEY_LEN },
185 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
186 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
187 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 188 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 189 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 190
191 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
192 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
193 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
194 .len = IEEE80211_MAX_DATA_LEN },
195 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
196 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 197 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
198 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
199 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
200 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
201 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 202 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 203 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 204 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 205 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 206 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 207 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 208
b2e1b302
LR		 209 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
210 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
211
9f1ba906
JM		 212 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
213 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
214 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 215 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
216 .len = NL80211_MAX_SUPP_RATES },
50b12f59 217 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 218
24bdd9f4 219 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 220 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 221
6c739419 222 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 223
224 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
225 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
226 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 227 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
228 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 229
230 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
231 .len = IEEE80211_MAX_SSID_LEN },
232 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
233 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 234 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 235 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 236 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 237 [NL80211_ATTR_STA_FLAGS2] = {
238 .len = sizeof(struct nl80211_sta_flag_update),
239 },
3f77316c 240 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 241 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
242 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 243 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
244 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
245 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 246 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 247 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 248 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
249 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 250 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
251 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 252 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 253 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
254 .len = IEEE80211_MAX_DATA_LEN },
255 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 256 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 257 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 258 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 259 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 260 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
261 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 262 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 263 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
264 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 265 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 266 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 267 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 268 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 269 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 270 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 271 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 272 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 273 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 274 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
275 .len = IEEE80211_MAX_DATA_LEN },
276 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
277 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 278 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 279 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 280 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 281 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
282 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
283 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
284 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
285 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 286 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 287 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
288 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 289 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 290 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
291 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
292 .len = NL80211_HT_CAPABILITY_LEN
293 },
1d9d9213 294 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 295 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 296 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
55682965
JB		 297};
298
e31b8213 299/* policy for the key attributes */
b54452b0 300static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 301 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 302 [NL80211_KEY_IDX] = { .type = NLA_U8 },
303 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 304 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 305 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
306 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 307 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 308 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
309};
310
311/* policy for the key default flags */
312static const struct nla_policy
313nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
314 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
315 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 316};
317
ff1b6e69
JB		 318/* policy for WoWLAN attributes */
319static const struct nla_policy
320nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
321 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
322 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
323 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
324 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 325 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
326 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
327 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
328 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 329};
330
e5497d76
JB		 331/* policy for GTK rekey offload attributes */
332static const struct nla_policy
333nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
334 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
335 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
336 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
337};
338
a1f1c21c
LC		 339static const struct nla_policy
340nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 341 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 342 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 343 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 344};
345
a043897a
HS		 346/* ifidx get helper */
347static int nl80211_get_ifidx(struct netlink_callback *cb)
348{
349 int res;
350
351 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
352 nl80211_fam.attrbuf, nl80211_fam.maxattr,
353 nl80211_policy);
354 if (res)
355 return res;
356
357 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
358 return -EINVAL;
359
360 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
361 if (!res)
362 return -EINVAL;
363 return res;
364}
365
67748893
JB		 366static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
367 struct netlink_callback *cb,
368 struct cfg80211_registered_device **rdev,
369 struct net_device **dev)
370{
371 int ifidx = cb->args[0];
372 int err;
373
374 if (!ifidx)
375 ifidx = nl80211_get_ifidx(cb);
376 if (ifidx < 0)
377 return ifidx;
378
379 cb->args[0] = ifidx;
380
381 rtnl_lock();
382
383 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
384 if (!*dev) {
385 err = -ENODEV;
386 goto out_rtnl;
387 }
388
389 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 390 if (IS_ERR(*rdev)) {
391 err = PTR_ERR(*rdev);
67748893
JB		 392 goto out_rtnl;
393 }
394
395 return 0;
396 out_rtnl:
397 rtnl_unlock();
398 return err;
399}
400
401static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
402{
403 cfg80211_unlock_rdev(rdev);
404 rtnl_unlock();
405}
406
f4a11bb0
JB		 407/* IE validation */
408static bool is_valid_ie_attr(const struct nlattr *attr)
409{
410 const u8 *pos;
411 int len;
412
413 if (!attr)
414 return true;
415
416 pos = nla_data(attr);
417 len = nla_len(attr);
418
419 while (len) {
420 u8 elemlen;
421
422 if (len < 2)
423 return false;
424 len -= 2;
425
426 elemlen = pos[1];
427 if (elemlen > len)
428 return false;
429
430 len -= elemlen;
431 pos += 2 + elemlen;
432 }
433
434 return true;
435}
436
55682965
JB		 437/* message building helper */
438static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
439 int flags, u8 cmd)
440{
441 /* since there is no private header just add the generic one */
442 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
443}
444
5dab3b8a
LR		 445static int nl80211_msg_put_channel(struct sk_buff *msg,
446 struct ieee80211_channel *chan)
447{
9360ffd1
DM		 448 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
449 chan->center_freq))
450 goto nla_put_failure;
5dab3b8a 451
9360ffd1
DM		 452 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
453 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
454 goto nla_put_failure;
455 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
456 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
457 goto nla_put_failure;
458 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
459 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
460 goto nla_put_failure;
461 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
462 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
463 goto nla_put_failure;
5dab3b8a 464
9360ffd1
DM		 465 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
466 DBM_TO_MBM(chan->max_power)))
467 goto nla_put_failure;
5dab3b8a
LR		 468
469 return 0;
470
471 nla_put_failure:
472 return -ENOBUFS;
473}
474
55682965
JB		 475/* netlink command implementations */
476
b9454e83
JB		 477struct key_parse {
478 struct key_params p;
479 int idx;
e31b8213 480 int type;
b9454e83 481 bool def, defmgmt;
dbd2fd65 482 bool def_uni, def_multi;
b9454e83
JB		 483};
484
485static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
486{
487 struct nlattr *tb[NL80211_KEY_MAX + 1];
488 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
489 nl80211_key_policy);
490 if (err)
491 return err;
492
493 k->def = !!tb[NL80211_KEY_DEFAULT];
494 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
495
dbd2fd65
JB		 496 if (k->def) {
497 k->def_uni = true;
498 k->def_multi = true;
499 }
500 if (k->defmgmt)
501 k->def_multi = true;
502
b9454e83
JB		 503 if (tb[NL80211_KEY_IDX])
504 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
505
506 if (tb[NL80211_KEY_DATA]) {
507 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
508 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
509 }
510
511 if (tb[NL80211_KEY_SEQ]) {
512 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
513 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
514 }
515
516 if (tb[NL80211_KEY_CIPHER])
517 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
518
e31b8213
JB		 519 if (tb[NL80211_KEY_TYPE]) {
520 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
521 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
522 return -EINVAL;
523 }
524
dbd2fd65
JB		 525 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
526 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 527 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
528 tb[NL80211_KEY_DEFAULT_TYPES],
529 nl80211_key_default_policy);
dbd2fd65
JB		 530 if (err)
531 return err;
532
533 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
534 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
535 }
536
b9454e83
JB		 537 return 0;
538}
539
540static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
541{
542 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
543 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
544 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
545 }
546
547 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
548 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
549 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
550 }
551
552 if (info->attrs[NL80211_ATTR_KEY_IDX])
553 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
554
555 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
556 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
557
558 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
559 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
560
dbd2fd65
JB		 561 if (k->def) {
562 k->def_uni = true;
563 k->def_multi = true;
564 }
565 if (k->defmgmt)
566 k->def_multi = true;
567
e31b8213
JB		 568 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
569 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
570 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
571 return -EINVAL;
572 }
573
dbd2fd65
JB		 574 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
575 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
576 int err = nla_parse_nested(
577 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
578 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
579 nl80211_key_default_policy);
580 if (err)
581 return err;
582
583 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
584 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
585 }
586
b9454e83
JB		 587 return 0;
588}
589
590static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
591{
592 int err;
593
594 memset(k, 0, sizeof(*k));
595 k->idx = -1;
e31b8213 596 k->type = -1;
b9454e83
JB		 597
598 if (info->attrs[NL80211_ATTR_KEY])
599 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
600 else
601 err = nl80211_parse_key_old(info, k);
602
603 if (err)
604 return err;
605
606 if (k->def && k->defmgmt)
607 return -EINVAL;
608
dbd2fd65
JB		 609 if (k->defmgmt) {
610 if (k->def_uni || !k->def_multi)
611 return -EINVAL;
612 }
613
b9454e83
JB		 614 if (k->idx != -1) {
615 if (k->defmgmt) {
616 if (k->idx < 4 || k->idx > 5)
617 return -EINVAL;
618 } else if (k->def) {
619 if (k->idx < 0 || k->idx > 3)
620 return -EINVAL;
621 } else {
622 if (k->idx < 0 || k->idx > 5)
623 return -EINVAL;
624 }
625 }
626
627 return 0;
628}
629
fffd0934
JB		 630static struct cfg80211_cached_keys *
631nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
632 struct nlattr *keys)
633{
634 struct key_parse parse;
635 struct nlattr *key;
636 struct cfg80211_cached_keys *result;
637 int rem, err, def = 0;
638
639 result = kzalloc(sizeof(*result), GFP_KERNEL);
640 if (!result)
641 return ERR_PTR(-ENOMEM);
642
643 result->def = -1;
644 result->defmgmt = -1;
645
646 nla_for_each_nested(key, keys, rem) {
647 memset(&parse, 0, sizeof(parse));
648 parse.idx = -1;
649
650 err = nl80211_parse_key_new(key, &parse);
651 if (err)
652 goto error;
653 err = -EINVAL;
654 if (!parse.p.key)
655 goto error;
656 if (parse.idx < 0 || parse.idx > 4)
657 goto error;
658 if (parse.def) {
659 if (def)
660 goto error;
661 def = 1;
662 result->def = parse.idx;
dbd2fd65
JB		 663 if (!parse.def_uni || !parse.def_multi)
664 goto error;
fffd0934
JB		 665 } else if (parse.defmgmt)
666 goto error;
667 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 668 parse.idx, false, NULL);
fffd0934
JB		 669 if (err)
670 goto error;
671 result->params[parse.idx].cipher = parse.p.cipher;
672 result->params[parse.idx].key_len = parse.p.key_len;
673 result->params[parse.idx].key = result->data[parse.idx];
674 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
675 }
676
677 return result;
678 error:
679 kfree(result);
680 return ERR_PTR(err);
681}
682
683static int nl80211_key_allowed(struct wireless_dev *wdev)
684{
685 ASSERT_WDEV_LOCK(wdev);
686
fffd0934
JB		 687 switch (wdev->iftype) {
688 case NL80211_IFTYPE_AP:
689 case NL80211_IFTYPE_AP_VLAN:
074ac8df 690 case NL80211_IFTYPE_P2P_GO:
ff973af7 691 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 692 break;
693 case NL80211_IFTYPE_ADHOC:
694 if (!wdev->current_bss)
695 return -ENOLINK;
696 break;
697 case NL80211_IFTYPE_STATION:
074ac8df 698 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 699 if (wdev->sme_state != CFG80211_SME_CONNECTED)
700 return -ENOLINK;
701 break;
702 default:
703 return -EINVAL;
704 }
705
706 return 0;
707}
708
7527a782
JB		 709static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
710{
711 struct nlattr *nl_modes = nla_nest_start(msg, attr);
712 int i;
713
714 if (!nl_modes)
715 goto nla_put_failure;
716
717 i = 0;
718 while (ifmodes) {
9360ffd1
DM		 719 if ((ifmodes & 1) && nla_put_flag(msg, i))
720 goto nla_put_failure;
7527a782
JB		 721 ifmodes >>= 1;
722 i++;
723 }
724
725 nla_nest_end(msg, nl_modes);
726 return 0;
727
728nla_put_failure:
729 return -ENOBUFS;
730}
731
732static int nl80211_put_iface_combinations(struct wiphy *wiphy,
733 struct sk_buff *msg)
734{
735 struct nlattr *nl_combis;
736 int i, j;
737
738 nl_combis = nla_nest_start(msg,
739 NL80211_ATTR_INTERFACE_COMBINATIONS);
740 if (!nl_combis)
741 goto nla_put_failure;
742
743 for (i = 0; i < wiphy->n_iface_combinations; i++) {
744 const struct ieee80211_iface_combination *c;
745 struct nlattr *nl_combi, *nl_limits;
746
747 c = &wiphy->iface_combinations[i];
748
749 nl_combi = nla_nest_start(msg, i + 1);
750 if (!nl_combi)
751 goto nla_put_failure;
752
753 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
754 if (!nl_limits)
755 goto nla_put_failure;
756
757 for (j = 0; j < c->n_limits; j++) {
758 struct nlattr *nl_limit;
759
760 nl_limit = nla_nest_start(msg, j + 1);
761 if (!nl_limit)
762 goto nla_put_failure;
9360ffd1
DM		 763 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
764 c->limits[j].max))
765 goto nla_put_failure;
7527a782
JB		 766 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
767 c->limits[j].types))
768 goto nla_put_failure;
769 nla_nest_end(msg, nl_limit);
770 }
771
772 nla_nest_end(msg, nl_limits);
773
9360ffd1
DM		 774 if (c->beacon_int_infra_match &&
775 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
776 goto nla_put_failure;
777 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
778 c->num_different_channels) ||
779 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
780 c->max_interfaces))
781 goto nla_put_failure;
7527a782
JB		 782
783 nla_nest_end(msg, nl_combi);
784 }
785
786 nla_nest_end(msg, nl_combis);
787
788 return 0;
789nla_put_failure:
790 return -ENOBUFS;
791}
792
55682965
JB		 793static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
794 struct cfg80211_registered_device *dev)
795{
796 void *hdr;
ee688b00
JB		 797 struct nlattr *nl_bands, *nl_band;
798 struct nlattr *nl_freqs, *nl_freq;
799 struct nlattr *nl_rates, *nl_rate;
8fdc621d 800 struct nlattr *nl_cmds;
ee688b00
JB		 801 enum ieee80211_band band;
802 struct ieee80211_channel *chan;
803 struct ieee80211_rate *rate;
804 int i;
2e161f78
JB		 805 const struct ieee80211_txrx_stypes *mgmt_stypes =
806 dev->wiphy.mgmt_stypes;
55682965
JB		 807
808 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
809 if (!hdr)
810 return -1;
811
9360ffd1
DM		 812 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
813 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
814 nla_put_u32(msg, NL80211_ATTR_GENERATION,
815 cfg80211_rdev_list_generation) ||
816 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
817 dev->wiphy.retry_short) ||
818 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
819 dev->wiphy.retry_long) ||
820 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
821 dev->wiphy.frag_threshold) ||
822 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
823 dev->wiphy.rts_threshold) ||
824 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
825 dev->wiphy.coverage_class) ||
826 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
827 dev->wiphy.max_scan_ssids) ||
828 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
829 dev->wiphy.max_sched_scan_ssids) ||
830 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
831 dev->wiphy.max_scan_ie_len) ||
832 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
833 dev->wiphy.max_sched_scan_ie_len) ||
834 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
835 dev->wiphy.max_match_sets))
836 goto nla_put_failure;
837
838 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
839 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
840 goto nla_put_failure;
841 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
842 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
843 goto nla_put_failure;
844 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
845 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
846 goto nla_put_failure;
847 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
848 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
849 goto nla_put_failure;
850 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
851 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
852 goto nla_put_failure;
853 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
854 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
855 goto nla_put_failure;
856
857 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
858 sizeof(u32) * dev->wiphy.n_cipher_suites,
859 dev->wiphy.cipher_suites))
860 goto nla_put_failure;
861
862 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
863 dev->wiphy.max_num_pmkids))
864 goto nla_put_failure;
865
866 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
867 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
868 goto nla_put_failure;
869
870 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
871 dev->wiphy.available_antennas_tx) ||
872 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
873 dev->wiphy.available_antennas_rx))
874 goto nla_put_failure;
875
876 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
877 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
878 dev->wiphy.probe_resp_offload))
879 goto nla_put_failure;
87bbbe22 880
7f531e03
BR		 881 if ((dev->wiphy.available_antennas_tx ||
882 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 883 u32 tx_ant = 0, rx_ant = 0;
884 int res;
885 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
886 if (!res) {
9360ffd1
DM		 887 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
888 tx_ant) ||
889 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
890 rx_ant))
891 goto nla_put_failure;
afe0cbf8
BR		 892 }
893 }
894
7527a782
JB		 895 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
896 dev->wiphy.interface_modes))
f59ac048
LR		 897 goto nla_put_failure;
898
ee688b00
JB		 899 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
900 if (!nl_bands)
901 goto nla_put_failure;
902
903 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
904 if (!dev->wiphy.bands[band])
905 continue;
906
907 nl_band = nla_nest_start(msg, band);
908 if (!nl_band)
909 goto nla_put_failure;
910
d51626df 911 /* add HT info */
9360ffd1
DM		 912 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
913 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
914 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
915 &dev->wiphy.bands[band]->ht_cap.mcs) ||
916 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
917 dev->wiphy.bands[band]->ht_cap.cap) ||
918 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
919 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
920 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
921 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
922 goto nla_put_failure;
d51626df 923
bf0c111e
MP		 924 /* add VHT info */
925 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
926 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
927 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
928 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
929 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
930 dev->wiphy.bands[band]->vht_cap.cap)))
931 goto nla_put_failure;
932
ee688b00
JB		 933 /* add frequencies */
934 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
935 if (!nl_freqs)
936 goto nla_put_failure;
937
938 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
939 nl_freq = nla_nest_start(msg, i);
940 if (!nl_freq)
941 goto nla_put_failure;
942
943 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 944
945 if (nl80211_msg_put_channel(msg, chan))
946 goto nla_put_failure;
e2f367f2 947
ee688b00
JB		 948 nla_nest_end(msg, nl_freq);
949 }
950
951 nla_nest_end(msg, nl_freqs);
952
953 /* add bitrates */
954 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
955 if (!nl_rates)
956 goto nla_put_failure;
957
958 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
959 nl_rate = nla_nest_start(msg, i);
960 if (!nl_rate)
961 goto nla_put_failure;
962
963 rate = &dev->wiphy.bands[band]->bitrates[i];
9360ffd1
DM		 964 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
965 rate->bitrate))
966 goto nla_put_failure;
967 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
968 nla_put_flag(msg,
969 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
970 goto nla_put_failure;
ee688b00
JB		 971
972 nla_nest_end(msg, nl_rate);
973 }
974
975 nla_nest_end(msg, nl_rates);
976
977 nla_nest_end(msg, nl_band);
978 }
979 nla_nest_end(msg, nl_bands);
980
8fdc621d
JB		 981 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
982 if (!nl_cmds)
983 goto nla_put_failure;
984
985 i = 0;
986#define CMD(op, n) \
987 do { \
988 if (dev->ops->op) { \
989 i++; \
9360ffd1
DM		 990 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
991 goto nla_put_failure; \
8fdc621d
JB		 992 } \
993 } while (0)
994
995 CMD(add_virtual_intf, NEW_INTERFACE);
996 CMD(change_virtual_intf, SET_INTERFACE);
997 CMD(add_key, NEW_KEY);
8860020e 998 CMD(start_ap, START_AP);
8fdc621d
JB		 999 CMD(add_station, NEW_STATION);
1000 CMD(add_mpath, NEW_MPATH);
24bdd9f4 1001 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 1002 CMD(change_bss, SET_BSS);
636a5d36
JM		 1003 CMD(auth, AUTHENTICATE);
1004 CMD(assoc, ASSOCIATE);
1005 CMD(deauth, DEAUTHENTICATE);
1006 CMD(disassoc, DISASSOCIATE);
04a773ad 1007 CMD(join_ibss, JOIN_IBSS);
29cbe68c 1008 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 1009 CMD(set_pmksa, SET_PMKSA);
1010 CMD(del_pmksa, DEL_PMKSA);
1011 CMD(flush_pmksa, FLUSH_PMKSA);
7c4ef712
JB		 1012 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1013 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 1014 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 1015 CMD(mgmt_tx, FRAME);
f7ca38df 1016 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 1017 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183 1018 i++;
9360ffd1
DM		 1019 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1020 goto nla_put_failure;
463d0183 1021 }
e8c9bd5b 1022 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
cc1d2806 1023 dev->ops->join_mesh) {
aa430da4
JB		 1024 i++;
1025 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1026 goto nla_put_failure;
1027 }
e8347eba 1028 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 1029 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1030 CMD(tdls_mgmt, TDLS_MGMT);
1031 CMD(tdls_oper, TDLS_OPER);
1032 }
807f8a8c
LC		 1033 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1034 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 1035 CMD(probe_client, PROBE_CLIENT);
1d9d9213 1036 CMD(set_noack_map, SET_NOACK_MAP);
5e760230
JB		 1037 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1038 i++;
9360ffd1
DM		 1039 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1040 goto nla_put_failure;
5e760230 1041 }
8fdc621d 1042
4745fc09
KV		 1043#ifdef CONFIG_NL80211_TESTMODE
1044 CMD(testmode_cmd, TESTMODE);
1045#endif
1046
8fdc621d 1047#undef CMD
b23aa676 1048
6829c878 1049 if (dev->ops->connect || dev->ops->auth) {
b23aa676 1050 i++;
9360ffd1
DM		 1051 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1052 goto nla_put_failure;
b23aa676
SO		 1053 }
1054
6829c878 1055 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676 1056 i++;
9360ffd1
DM		 1057 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1058 goto nla_put_failure;
b23aa676
SO		 1059 }
1060
8fdc621d
JB		 1061 nla_nest_end(msg, nl_cmds);
1062
7c4ef712 1063 if (dev->ops->remain_on_channel &&
9360ffd1
DM		 1064 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1065 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1066 dev->wiphy.max_remain_on_channel_duration))
1067 goto nla_put_failure;
a293911d 1068
9360ffd1
DM		 1069 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1070 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1071 goto nla_put_failure;
f7ca38df 1072
2e161f78
JB		 1073 if (mgmt_stypes) {
1074 u16 stypes;
1075 struct nlattr *nl_ftypes, *nl_ifs;
1076 enum nl80211_iftype ift;
1077
1078 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1079 if (!nl_ifs)
1080 goto nla_put_failure;
1081
1082 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1083 nl_ftypes = nla_nest_start(msg, ift);
1084 if (!nl_ftypes)
1085 goto nla_put_failure;
1086 i = 0;
1087 stypes = mgmt_stypes[ift].tx;
1088 while (stypes) {
9360ffd1
DM		 1089 if ((stypes & 1) &&
1090 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1091 (i << 4) | IEEE80211_FTYPE_MGMT))
1092 goto nla_put_failure;
2e161f78
JB		 1093 stypes >>= 1;
1094 i++;
1095 }
1096 nla_nest_end(msg, nl_ftypes);
1097 }
1098
74b70a4e
JB		 1099 nla_nest_end(msg, nl_ifs);
1100
2e161f78
JB		 1101 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1102 if (!nl_ifs)
1103 goto nla_put_failure;
1104
1105 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1106 nl_ftypes = nla_nest_start(msg, ift);
1107 if (!nl_ftypes)
1108 goto nla_put_failure;
1109 i = 0;
1110 stypes = mgmt_stypes[ift].rx;
1111 while (stypes) {
9360ffd1
DM		 1112 if ((stypes & 1) &&
1113 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1114 (i << 4) | IEEE80211_FTYPE_MGMT))
1115 goto nla_put_failure;
2e161f78
JB		 1116 stypes >>= 1;
1117 i++;
1118 }
1119 nla_nest_end(msg, nl_ftypes);
1120 }
1121 nla_nest_end(msg, nl_ifs);
1122 }
1123
dfb89c56 1124#ifdef CONFIG_PM
ff1b6e69
JB		 1125 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1126 struct nlattr *nl_wowlan;
1127
1128 nl_wowlan = nla_nest_start(msg,
1129 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1130 if (!nl_wowlan)
1131 goto nla_put_failure;
1132
9360ffd1
DM		 1133 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1134 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1135 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1136 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1137 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1138 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1139 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1140 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1141 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1142 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1143 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1144 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1145 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1146 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1147 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1148 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1149 goto nla_put_failure;
ff1b6e69
JB		 1150 if (dev->wiphy.wowlan.n_patterns) {
1151 struct nl80211_wowlan_pattern_support pat = {
1152 .max_patterns = dev->wiphy.wowlan.n_patterns,
1153 .min_pattern_len =
1154 dev->wiphy.wowlan.pattern_min_len,
1155 .max_pattern_len =
1156 dev->wiphy.wowlan.pattern_max_len,
1157 };
9360ffd1
DM		 1158 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1159 sizeof(pat), &pat))
1160 goto nla_put_failure;
ff1b6e69
JB		 1161 }
1162
1163 nla_nest_end(msg, nl_wowlan);
1164 }
dfb89c56 1165#endif
ff1b6e69 1166
7527a782
JB		 1167 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1168 dev->wiphy.software_iftypes))
1169 goto nla_put_failure;
1170
1171 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1172 goto nla_put_failure;
1173
9360ffd1
DM		 1174 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1175 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1176 dev->wiphy.ap_sme_capa))
1177 goto nla_put_failure;
562a7480 1178
9360ffd1
DM		 1179 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1180 dev->wiphy.features))
1181 goto nla_put_failure;
1f074bd8 1182
9360ffd1
DM		 1183 if (dev->wiphy.ht_capa_mod_mask &&
1184 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1185 sizeof(*dev->wiphy.ht_capa_mod_mask),
1186 dev->wiphy.ht_capa_mod_mask))
1187 goto nla_put_failure;
7e7c8926 1188
55682965
JB		 1189 return genlmsg_end(msg, hdr);
1190
1191 nla_put_failure:
bc3ed28c
TG		 1192 genlmsg_cancel(msg, hdr);
1193 return -EMSGSIZE;
55682965
JB		 1194}
1195
1196static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1197{
1198 int idx = 0;
1199 int start = cb->args[0];
1200 struct cfg80211_registered_device *dev;
1201
a1794390 1202 mutex_lock(&cfg80211_mutex);
79c97e97 1203 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1204 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1205 continue;
b4637271 1206 if (++idx <= start)
55682965
JB		 1207 continue;
1208 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1209 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1210 dev) < 0) {
1211 idx--;
55682965 1212 break;
b4637271 1213 }
55682965 1214 }
a1794390 1215 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1216
1217 cb->args[0] = idx;
1218
1219 return skb->len;
1220}
1221
1222static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1223{
1224 struct sk_buff *msg;
4c476991 1225 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1226
fd2120ca 1227 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1228 if (!msg)
4c476991 1229 return -ENOMEM;
55682965 1230
4c476991
JB		 1231 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1232 nlmsg_free(msg);
1233 return -ENOBUFS;
1234 }
55682965 1235
134e6375 1236 return genlmsg_reply(msg, info);
55682965
JB		 1237}
1238
31888487
JM		 1239static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1240 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1241 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1242 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1243 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1244 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1245};
1246
1247static int parse_txq_params(struct nlattr *tb[],
1248 struct ieee80211_txq_params *txq_params)
1249{
a3304b0a 1250 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1251 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1252 !tb[NL80211_TXQ_ATTR_AIFS])
1253 return -EINVAL;
1254
a3304b0a 1255 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1256 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1257 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1258 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1259 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1260
a3304b0a
JB		 1261 if (txq_params->ac >= NL80211_NUM_ACS)
1262 return -EINVAL;
1263
31888487
JM		 1264 return 0;
1265}
1266
f444de05
JB		 1267static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1268{
1269 /*
cc1d2806
JB		 1270 * You can only set the channel explicitly for WDS interfaces,
1271 * all others have their channel managed via their respective
1272 * "establish a connection" command (connect, join, ...)
1273 *
1274 * For AP/GO and mesh mode, the channel can be set with the
1275 * channel userspace API, but is only stored and passed to the
1276 * low-level driver when the AP starts or the mesh is joined.
1277 * This is for backward compatibility, userspace can also give
1278 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1279 *
1280 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1281 * whatever else is going on, so they have their own special
1282 * operation to set the monitor channel if possible.
f444de05
JB		 1283 */
1284 return !wdev ||
1285 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1286 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1287 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1288 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1289}
1290
cd6c6598
JB		 1291static bool nl80211_valid_channel_type(struct genl_info *info,
1292 enum nl80211_channel_type *channel_type)
1293{
1294 enum nl80211_channel_type tmp;
1295
1296 if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1297 return false;
1298
1299 tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1300 if (tmp != NL80211_CHAN_NO_HT &&
1301 tmp != NL80211_CHAN_HT20 &&
1302 tmp != NL80211_CHAN_HT40PLUS &&
1303 tmp != NL80211_CHAN_HT40MINUS)
1304 return false;
1305
1306 if (channel_type)
1307 *channel_type = tmp;
1308
1309 return true;
1310}
1311
f444de05
JB		 1312static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1313 struct wireless_dev *wdev,
1314 struct genl_info *info)
1315{
aa430da4 1316 struct ieee80211_channel *channel;
f444de05
JB		 1317 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1318 u32 freq;
1319 int result;
e8c9bd5b
JB		 1320 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1321
1322 if (wdev)
1323 iftype = wdev->iftype;
f444de05
JB		 1324
1325 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1326 return -EINVAL;
1327
1328 if (!nl80211_can_set_dev_channel(wdev))
1329 return -EOPNOTSUPP;
1330
cd6c6598
JB		 1331 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
1332 !nl80211_valid_channel_type(info, &channel_type))
1333 return -EINVAL;
f444de05
JB		 1334
1335 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1336
1337 mutex_lock(&rdev->devlist_mtx);
e8c9bd5b 1338 switch (iftype) {
aa430da4
JB		 1339 case NL80211_IFTYPE_AP:
1340 case NL80211_IFTYPE_P2P_GO:
1341 if (wdev->beacon_interval) {
1342 result = -EBUSY;
1343 break;
1344 }
1345 channel = rdev_freq_to_chan(rdev, freq, channel_type);
1346 if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
1347 channel,
1348 channel_type)) {
1349 result = -EINVAL;
1350 break;
1351 }
1352 wdev->preset_chan = channel;
1353 wdev->preset_chantype = channel_type;
1354 result = 0;
1355 break;
cc1d2806
JB		 1356 case NL80211_IFTYPE_MESH_POINT:
1357 result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type);
1358 break;
e8c9bd5b
JB		 1359 case NL80211_IFTYPE_MONITOR:
1360 result = cfg80211_set_monitor_channel(rdev, freq, channel_type);
1361 break;
aa430da4 1362 default:
e8c9bd5b 1363 result = -EINVAL;
f444de05
JB		 1364 }
1365 mutex_unlock(&rdev->devlist_mtx);
1366
1367 return result;
1368}
1369
1370static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1371{
4c476991
JB		 1372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1373 struct net_device *netdev = info->user_ptr[1];
f444de05 1374
4c476991 1375 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1376}
1377
e8347eba
BJ		 1378static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1379{
43b19952
JB		 1380 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1381 struct net_device *dev = info->user_ptr[1];
1382 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1383 const u8 *bssid;
e8347eba
BJ		 1384
1385 if (!info->attrs[NL80211_ATTR_MAC])
1386 return -EINVAL;
1387
43b19952
JB		 1388 if (netif_running(dev))
1389 return -EBUSY;
e8347eba 1390
43b19952
JB		 1391 if (!rdev->ops->set_wds_peer)
1392 return -EOPNOTSUPP;
e8347eba 1393
43b19952
JB		 1394 if (wdev->iftype != NL80211_IFTYPE_WDS)
1395 return -EOPNOTSUPP;
e8347eba
BJ		 1396
1397 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 1398 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 1399}
1400
1401
55682965
JB		 1402static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1403{
1404 struct cfg80211_registered_device *rdev;
f444de05
JB		 1405 struct net_device *netdev = NULL;
1406 struct wireless_dev *wdev;
a1e567c8 1407 int result = 0, rem_txq_params = 0;
31888487 1408 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1409 u32 changed;
1410 u8 retry_short = 0, retry_long = 0;
1411 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1412 u8 coverage_class = 0;
55682965 1413
f444de05
JB		 1414 /*
1415 * Try to find the wiphy and netdev. Normally this
1416 * function shouldn't need the netdev, but this is
1417 * done for backward compatibility -- previously
1418 * setting the channel was done per wiphy, but now
1419 * it is per netdev. Previous userland like hostapd
1420 * also passed a netdev to set_wiphy, so that it is
1421 * possible to let that go to the right netdev!
1422 */
4bbf4d56
JB		 1423 mutex_lock(&cfg80211_mutex);
1424
f444de05
JB		 1425 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1426 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1427
1428 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1429 if (netdev && netdev->ieee80211_ptr) {
1430 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1431 mutex_lock(&rdev->mtx);
1432 } else
1433 netdev = NULL;
4bbf4d56
JB		 1434 }
1435
f444de05 1436 if (!netdev) {
878d9ec7
JB		 1437 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1438 info->attrs);
f444de05
JB		 1439 if (IS_ERR(rdev)) {
1440 mutex_unlock(&cfg80211_mutex);
4c476991 1441 return PTR_ERR(rdev);
f444de05
JB		 1442 }
1443 wdev = NULL;
1444 netdev = NULL;
1445 result = 0;
1446
1447 mutex_lock(&rdev->mtx);
cc1d2806 1448 } else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
f444de05
JB		 1449 wdev = netdev->ieee80211_ptr;
1450 else
1451 wdev = NULL;
1452
1453 /*
1454 * end workaround code, by now the rdev is available
1455 * and locked, and wdev may or may not be NULL.
1456 */
4bbf4d56
JB		 1457
1458 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1459 result = cfg80211_dev_rename(
1460 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1461
1462 mutex_unlock(&cfg80211_mutex);
1463
1464 if (result)
1465 goto bad_res;
31888487
JM		 1466
1467 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1468 struct ieee80211_txq_params txq_params;
1469 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1470
1471 if (!rdev->ops->set_txq_params) {
1472 result = -EOPNOTSUPP;
1473 goto bad_res;
1474 }
1475
f70f01c2
EP		 1476 if (!netdev) {
1477 result = -EINVAL;
1478 goto bad_res;
1479 }
1480
133a3ff2
JB		 1481 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1482 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1483 result = -EINVAL;
1484 goto bad_res;
1485 }
1486
2b5f8b0b
JB		 1487 if (!netif_running(netdev)) {
1488 result = -ENETDOWN;
1489 goto bad_res;
1490 }
1491
31888487
JM		 1492 nla_for_each_nested(nl_txq_params,
1493 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1494 rem_txq_params) {
1495 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1496 nla_data(nl_txq_params),
1497 nla_len(nl_txq_params),
1498 txq_params_policy);
1499 result = parse_txq_params(tb, &txq_params);
1500 if (result)
1501 goto bad_res;
1502
1503 result = rdev->ops->set_txq_params(&rdev->wiphy,
f70f01c2 1504 netdev,
31888487
JM		 1505 &txq_params);
1506 if (result)
1507 goto bad_res;
1508 }
1509 }
55682965 1510
72bdcf34 1511 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1512 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1513 if (result)
1514 goto bad_res;
1515 }
1516
98d2ff8b
JO		 1517 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1518 enum nl80211_tx_power_setting type;
1519 int idx, mbm = 0;
1520
1521 if (!rdev->ops->set_tx_power) {
60ea385f 1522 result = -EOPNOTSUPP;
98d2ff8b
JO		 1523 goto bad_res;
1524 }
1525
1526 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1527 type = nla_get_u32(info->attrs[idx]);
1528
1529 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1530 (type != NL80211_TX_POWER_AUTOMATIC)) {
1531 result = -EINVAL;
1532 goto bad_res;
1533 }
1534
1535 if (type != NL80211_TX_POWER_AUTOMATIC) {
1536 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1537 mbm = nla_get_u32(info->attrs[idx]);
1538 }
1539
1540 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1541 if (result)
1542 goto bad_res;
1543 }
1544
afe0cbf8
BR		 1545 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1546 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1547 u32 tx_ant, rx_ant;
7f531e03
BR		 1548 if ((!rdev->wiphy.available_antennas_tx &&
1549 !rdev->wiphy.available_antennas_rx) ||
1550 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1551 result = -EOPNOTSUPP;
1552 goto bad_res;
1553 }
1554
1555 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1556 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1557
a7ffac95 1558 /* reject antenna configurations which don't match the
7f531e03
BR		 1559 * available antenna masks, except for the "all" mask */
1560 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1561 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1562 result = -EINVAL;
1563 goto bad_res;
1564 }
1565
7f531e03
BR		 1566 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1567 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1568
afe0cbf8
BR		 1569 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1570 if (result)
1571 goto bad_res;
1572 }
1573
b9a5f8ca
JM		 1574 changed = 0;
1575
1576 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1577 retry_short = nla_get_u8(
1578 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1579 if (retry_short == 0) {
1580 result = -EINVAL;
1581 goto bad_res;
1582 }
1583 changed |= WIPHY_PARAM_RETRY_SHORT;
1584 }
1585
1586 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1587 retry_long = nla_get_u8(
1588 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1589 if (retry_long == 0) {
1590 result = -EINVAL;
1591 goto bad_res;
1592 }
1593 changed |= WIPHY_PARAM_RETRY_LONG;
1594 }
1595
1596 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1597 frag_threshold = nla_get_u32(
1598 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1599 if (frag_threshold < 256) {
1600 result = -EINVAL;
1601 goto bad_res;
1602 }
1603 if (frag_threshold != (u32) -1) {
1604 /*
1605 * Fragments (apart from the last one) are required to
1606 * have even length. Make the fragmentation code
1607 * simpler by stripping LSB should someone try to use
1608 * odd threshold value.
1609 */
1610 frag_threshold &= ~0x1;
1611 }
1612 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1613 }
1614
1615 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1616 rts_threshold = nla_get_u32(
1617 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1618 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1619 }
1620
81077e82
LT		 1621 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1622 coverage_class = nla_get_u8(
1623 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1624 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1625 }
1626
b9a5f8ca
JM		 1627 if (changed) {
1628 u8 old_retry_short, old_retry_long;
1629 u32 old_frag_threshold, old_rts_threshold;
81077e82 1630 u8 old_coverage_class;
b9a5f8ca
JM		 1631
1632 if (!rdev->ops->set_wiphy_params) {
1633 result = -EOPNOTSUPP;
1634 goto bad_res;
1635 }
1636
1637 old_retry_short = rdev->wiphy.retry_short;
1638 old_retry_long = rdev->wiphy.retry_long;
1639 old_frag_threshold = rdev->wiphy.frag_threshold;
1640 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1641 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1642
1643 if (changed & WIPHY_PARAM_RETRY_SHORT)
1644 rdev->wiphy.retry_short = retry_short;
1645 if (changed & WIPHY_PARAM_RETRY_LONG)
1646 rdev->wiphy.retry_long = retry_long;
1647 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1648 rdev->wiphy.frag_threshold = frag_threshold;
1649 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1650 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1651 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1652 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1653
1654 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1655 if (result) {
1656 rdev->wiphy.retry_short = old_retry_short;
1657 rdev->wiphy.retry_long = old_retry_long;
1658 rdev->wiphy.frag_threshold = old_frag_threshold;
1659 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1660 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1661 }
1662 }
72bdcf34 1663
306d6112 1664 bad_res:
4bbf4d56 1665 mutex_unlock(&rdev->mtx);
f444de05
JB		 1666 if (netdev)
1667 dev_put(netdev);
55682965
JB		 1668 return result;
1669}
1670
1671
1672static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1673 struct cfg80211_registered_device *rdev,
55682965
JB		 1674 struct net_device *dev)
1675{
1676 void *hdr;
1677
1678 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1679 if (!hdr)
1680 return -1;
1681
9360ffd1
DM		 1682 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1683 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1684 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name) ||
1685 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1686 dev->ieee80211_ptr->iftype) ||
1687 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1688 rdev->devlist_generation ^
1689 (cfg80211_rdev_list_generation << 2)))
1690 goto nla_put_failure;
f5ea9120 1691
d91df0e3
PF		 1692 if (rdev->ops->get_channel) {
1693 struct ieee80211_channel *chan;
1694 enum nl80211_channel_type channel_type;
1695
1696 chan = rdev->ops->get_channel(&rdev->wiphy, &channel_type);
59ef43e6
JL		 1697 if (chan &&
1698 (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1699 chan->center_freq) ||
1700 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1701 channel_type)))
1702 goto nla_put_failure;
d91df0e3
PF		 1703 }
1704
55682965
JB		 1705 return genlmsg_end(msg, hdr);
1706
1707 nla_put_failure:
bc3ed28c
TG		 1708 genlmsg_cancel(msg, hdr);
1709 return -EMSGSIZE;
55682965
JB		 1710}
1711
1712static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1713{
1714 int wp_idx = 0;
1715 int if_idx = 0;
1716 int wp_start = cb->args[0];
1717 int if_start = cb->args[1];
f5ea9120 1718 struct cfg80211_registered_device *rdev;
55682965
JB		 1719 struct wireless_dev *wdev;
1720
a1794390 1721 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1722 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1723 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1724 continue;
bba95fef
JB		 1725 if (wp_idx < wp_start) {
1726 wp_idx++;
55682965 1727 continue;
bba95fef 1728 }
55682965
JB		 1729 if_idx = 0;
1730
f5ea9120
JB		 1731 mutex_lock(&rdev->devlist_mtx);
1732 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1733 if (if_idx < if_start) {
1734 if_idx++;
55682965 1735 continue;
bba95fef 1736 }
55682965
JB		 1737 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1738 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1739 rdev, wdev->netdev) < 0) {
1740 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1741 goto out;
1742 }
1743 if_idx++;
55682965 1744 }
f5ea9120 1745 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1746
1747 wp_idx++;
55682965 1748 }
bba95fef 1749 out:
a1794390 1750 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1751
1752 cb->args[0] = wp_idx;
1753 cb->args[1] = if_idx;
1754
1755 return skb->len;
1756}
1757
1758static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1759{
1760 struct sk_buff *msg;
4c476991
JB		 1761 struct cfg80211_registered_device *dev = info->user_ptr[0];
1762 struct net_device *netdev = info->user_ptr[1];
55682965 1763
fd2120ca 1764 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1765 if (!msg)
4c476991 1766 return -ENOMEM;
55682965 1767
d726405a 1768 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1769 dev, netdev) < 0) {
1770 nlmsg_free(msg);
1771 return -ENOBUFS;
1772 }
55682965 1773
134e6375 1774 return genlmsg_reply(msg, info);
55682965
JB		 1775}
1776
66f7ac50
MW		 1777static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1778 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1779 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1780 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1781 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1782 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1783};
1784
1785static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1786{
1787 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1788 int flag;
1789
1790 *mntrflags = 0;
1791
1792 if (!nla)
1793 return -EINVAL;
1794
1795 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1796 nla, mntr_flags_policy))
1797 return -EINVAL;
1798
1799 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1800 if (flags[flag])
1801 *mntrflags |= (1<<flag);
1802
1803 return 0;
1804}
1805
9bc383de 1806static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1807 struct net_device *netdev, u8 use_4addr,
1808 enum nl80211_iftype iftype)
9bc383de 1809{
ad4bb6f8 1810 if (!use_4addr) {
f350a0a8 1811 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1812 return -EBUSY;
9bc383de 1813 return 0;
ad4bb6f8 1814 }
9bc383de
JB		 1815
1816 switch (iftype) {
1817 case NL80211_IFTYPE_AP_VLAN:
1818 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1819 return 0;
1820 break;
1821 case NL80211_IFTYPE_STATION:
1822 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1823 return 0;
1824 break;
1825 default:
1826 break;
1827 }
1828
1829 return -EOPNOTSUPP;
1830}
1831
55682965
JB		 1832static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1833{
4c476991 1834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1835 struct vif_params params;
e36d56b6 1836 int err;
04a773ad 1837 enum nl80211_iftype otype, ntype;
4c476991 1838 struct net_device *dev = info->user_ptr[1];
92ffe055 1839 u32 _flags, *flags = NULL;
ac7f9cfa 1840 bool change = false;
55682965 1841
2ec600d6
LCC		 1842 memset(&params, 0, sizeof(params));
1843
04a773ad 1844 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1845
723b038d 1846 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1847 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1848 if (otype != ntype)
ac7f9cfa 1849 change = true;
4c476991
JB		 1850 if (ntype > NL80211_IFTYPE_MAX)
1851 return -EINVAL;
723b038d
JB		 1852 }
1853
92ffe055 1854 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1855 struct wireless_dev *wdev = dev->ieee80211_ptr;
1856
4c476991
JB		 1857 if (ntype != NL80211_IFTYPE_MESH_POINT)
1858 return -EINVAL;
29cbe68c
JB		 1859 if (netif_running(dev))
1860 return -EBUSY;
1861
1862 wdev_lock(wdev);
1863 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1864 IEEE80211_MAX_MESH_ID_LEN);
1865 wdev->mesh_id_up_len =
1866 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1867 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1868 wdev->mesh_id_up_len);
1869 wdev_unlock(wdev);
2ec600d6
LCC		 1870 }
1871
8b787643
FF		 1872 if (info->attrs[NL80211_ATTR_4ADDR]) {
1873 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1874 change = true;
ad4bb6f8 1875 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1876 if (err)
4c476991 1877 return err;
8b787643
FF		 1878 } else {
1879 params.use_4addr = -1;
1880 }
1881
92ffe055 1882 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1883 if (ntype != NL80211_IFTYPE_MONITOR)
1884 return -EINVAL;
92ffe055
JB		 1885 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1886 &_flags);
ac7f9cfa 1887 if (err)
4c476991 1888 return err;
ac7f9cfa
JB		 1889
1890 flags = &_flags;
1891 change = true;
92ffe055 1892 }
3b85875a 1893
ac7f9cfa 1894 if (change)
3d54d255 1895 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1896 else
1897 err = 0;
60719ffd 1898
9bc383de
JB		 1899 if (!err && params.use_4addr != -1)
1900 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1901
55682965
JB		 1902 return err;
1903}
1904
1905static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1906{
4c476991 1907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1908 struct vif_params params;
f9e10ce4 1909 struct net_device *dev;
55682965
JB		 1910 int err;
1911 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1912 u32 flags;
55682965 1913
2ec600d6
LCC		 1914 memset(&params, 0, sizeof(params));
1915
55682965
JB		 1916 if (!info->attrs[NL80211_ATTR_IFNAME])
1917 return -EINVAL;
1918
1919 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1920 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1921 if (type > NL80211_IFTYPE_MAX)
1922 return -EINVAL;
1923 }
1924
79c97e97 1925 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1926 !(rdev->wiphy.interface_modes & (1 << type)))
1927 return -EOPNOTSUPP;
55682965 1928
9bc383de 1929 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1930 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1931 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1932 if (err)
4c476991 1933 return err;
9bc383de 1934 }
8b787643 1935
66f7ac50
MW		 1936 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1937 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1938 &flags);
f9e10ce4 1939 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1940 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1941 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1942 if (IS_ERR(dev))
1943 return PTR_ERR(dev);
2ec600d6 1944
29cbe68c
JB		 1945 if (type == NL80211_IFTYPE_MESH_POINT &&
1946 info->attrs[NL80211_ATTR_MESH_ID]) {
1947 struct wireless_dev *wdev = dev->ieee80211_ptr;
1948
1949 wdev_lock(wdev);
1950 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1951 IEEE80211_MAX_MESH_ID_LEN);
1952 wdev->mesh_id_up_len =
1953 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1954 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1955 wdev->mesh_id_up_len);
1956 wdev_unlock(wdev);
1957 }
1958
f9e10ce4 1959 return 0;
55682965
JB		 1960}
1961
1962static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1963{
4c476991
JB		 1964 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1965 struct net_device *dev = info->user_ptr[1];
55682965 1966
4c476991
JB		 1967 if (!rdev->ops->del_virtual_intf)
1968 return -EOPNOTSUPP;
55682965 1969
4c476991 1970 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1971}
1972
1d9d9213
SW		 1973static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
1974{
1975 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1976 struct net_device *dev = info->user_ptr[1];
1977 u16 noack_map;
1978
1979 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
1980 return -EINVAL;
1981
1982 if (!rdev->ops->set_noack_map)
1983 return -EOPNOTSUPP;
1984
1985 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
1986
1987 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
1988}
1989
41ade00f
JB		 1990struct get_key_cookie {
1991 struct sk_buff *msg;
1992 int error;
b9454e83 1993 int idx;
41ade00f
JB		 1994};
1995
1996static void get_key_callback(void *c, struct key_params *params)
1997{
b9454e83 1998 struct nlattr *key;
41ade00f
JB		 1999 struct get_key_cookie *cookie = c;
2000
9360ffd1
DM		 2001 if ((params->key &&
2002 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2003 params->key_len, params->key)) ||
2004 (params->seq &&
2005 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2006 params->seq_len, params->seq)) ||
2007 (params->cipher &&
2008 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2009 params->cipher)))
2010 goto nla_put_failure;
41ade00f 2011
b9454e83
JB		 2012 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2013 if (!key)
2014 goto nla_put_failure;
2015
9360ffd1
DM		 2016 if ((params->key &&
2017 nla_put(cookie->msg, NL80211_KEY_DATA,
2018 params->key_len, params->key)) ||
2019 (params->seq &&
2020 nla_put(cookie->msg, NL80211_KEY_SEQ,
2021 params->seq_len, params->seq)) ||
2022 (params->cipher &&
2023 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2024 params->cipher)))
2025 goto nla_put_failure;
b9454e83 2026
9360ffd1
DM		 2027 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2028 goto nla_put_failure;
b9454e83
JB		 2029
2030 nla_nest_end(cookie->msg, key);
2031
41ade00f
JB		 2032 return;
2033 nla_put_failure:
2034 cookie->error = 1;
2035}
2036
2037static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2038{
4c476991 2039 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2040 int err;
4c476991 2041 struct net_device *dev = info->user_ptr[1];
41ade00f 2042 u8 key_idx = 0;
e31b8213
JB		 2043 const u8 *mac_addr = NULL;
2044 bool pairwise;
41ade00f
JB		 2045 struct get_key_cookie cookie = {
2046 .error = 0,
2047 };
2048 void *hdr;
2049 struct sk_buff *msg;
2050
2051 if (info->attrs[NL80211_ATTR_KEY_IDX])
2052 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2053
3cfcf6ac 2054 if (key_idx > 5)
41ade00f
JB		 2055 return -EINVAL;
2056
2057 if (info->attrs[NL80211_ATTR_MAC])
2058 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2059
e31b8213
JB		 2060 pairwise = !!mac_addr;
2061 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2062 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2063 if (kt >= NUM_NL80211_KEYTYPES)
2064 return -EINVAL;
2065 if (kt != NL80211_KEYTYPE_GROUP &&
2066 kt != NL80211_KEYTYPE_PAIRWISE)
2067 return -EINVAL;
2068 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2069 }
2070
4c476991
JB		 2071 if (!rdev->ops->get_key)
2072 return -EOPNOTSUPP;
41ade00f 2073
fd2120ca 2074 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2075 if (!msg)
2076 return -ENOMEM;
41ade00f
JB		 2077
2078 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2079 NL80211_CMD_NEW_KEY);
4c476991
JB		 2080 if (IS_ERR(hdr))
2081 return PTR_ERR(hdr);
41ade00f
JB		 2082
2083 cookie.msg = msg;
b9454e83 2084 cookie.idx = key_idx;
41ade00f 2085
9360ffd1
DM		 2086 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2087 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2088 goto nla_put_failure;
2089 if (mac_addr &&
2090 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2091 goto nla_put_failure;
41ade00f 2092
e31b8213
JB		 2093 if (pairwise && mac_addr &&
2094 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2095 return -ENOENT;
2096
2097 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
2098 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 2099
2100 if (err)
6c95e2a2 2101 goto free_msg;
41ade00f
JB		 2102
2103 if (cookie.error)
2104 goto nla_put_failure;
2105
2106 genlmsg_end(msg, hdr);
4c476991 2107 return genlmsg_reply(msg, info);
41ade00f
JB		 2108
2109 nla_put_failure:
2110 err = -ENOBUFS;
6c95e2a2 2111 free_msg:
41ade00f 2112 nlmsg_free(msg);
41ade00f
JB		 2113 return err;
2114}
2115
2116static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2117{
4c476991 2118 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2119 struct key_parse key;
41ade00f 2120 int err;
4c476991 2121 struct net_device *dev = info->user_ptr[1];
41ade00f 2122
b9454e83
JB		 2123 err = nl80211_parse_key(info, &key);
2124 if (err)
2125 return err;
41ade00f 2126
b9454e83 2127 if (key.idx < 0)
41ade00f
JB		 2128 return -EINVAL;
2129
b9454e83
JB		 2130 /* only support setting default key */
2131 if (!key.def && !key.defmgmt)
41ade00f
JB		 2132 return -EINVAL;
2133
dbd2fd65 2134 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2135
dbd2fd65
JB		 2136 if (key.def) {
2137 if (!rdev->ops->set_default_key) {
2138 err = -EOPNOTSUPP;
2139 goto out;
2140 }
41ade00f 2141
dbd2fd65
JB		 2142 err = nl80211_key_allowed(dev->ieee80211_ptr);
2143 if (err)
2144 goto out;
2145
dbd2fd65
JB		 2146 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
2147 key.def_uni, key.def_multi);
2148
2149 if (err)
2150 goto out;
fffd0934 2151
3d23e349 2152#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2153 dev->ieee80211_ptr->wext.default_key = key.idx;
2154#endif
2155 } else {
2156 if (key.def_uni || !key.def_multi) {
2157 err = -EINVAL;
2158 goto out;
2159 }
2160
2161 if (!rdev->ops->set_default_mgmt_key) {
2162 err = -EOPNOTSUPP;
2163 goto out;
2164 }
2165
2166 err = nl80211_key_allowed(dev->ieee80211_ptr);
2167 if (err)
2168 goto out;
2169
2170 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
2171 dev, key.idx);
2172 if (err)
2173 goto out;
2174
2175#ifdef CONFIG_CFG80211_WEXT
2176 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2177#endif
dbd2fd65
JB		 2178 }
2179
2180 out:
fffd0934 2181 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2182
41ade00f
JB		 2183 return err;
2184}
2185
2186static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2187{
4c476991 2188 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2189 int err;
4c476991 2190 struct net_device *dev = info->user_ptr[1];
b9454e83 2191 struct key_parse key;
e31b8213 2192 const u8 *mac_addr = NULL;
41ade00f 2193
b9454e83
JB		 2194 err = nl80211_parse_key(info, &key);
2195 if (err)
2196 return err;
41ade00f 2197
b9454e83 2198 if (!key.p.key)
41ade00f
JB		 2199 return -EINVAL;
2200
41ade00f
JB		 2201 if (info->attrs[NL80211_ATTR_MAC])
2202 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2203
e31b8213
JB		 2204 if (key.type == -1) {
2205 if (mac_addr)
2206 key.type = NL80211_KEYTYPE_PAIRWISE;
2207 else
2208 key.type = NL80211_KEYTYPE_GROUP;
2209 }
2210
2211 /* for now */
2212 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2213 key.type != NL80211_KEYTYPE_GROUP)
2214 return -EINVAL;
2215
4c476991
JB		 2216 if (!rdev->ops->add_key)
2217 return -EOPNOTSUPP;
25e47c18 2218
e31b8213
JB		 2219 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2220 key.type == NL80211_KEYTYPE_PAIRWISE,
2221 mac_addr))
4c476991 2222 return -EINVAL;
41ade00f 2223
fffd0934
JB		 2224 wdev_lock(dev->ieee80211_ptr);
2225 err = nl80211_key_allowed(dev->ieee80211_ptr);
2226 if (!err)
2227 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 2228 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 2229 mac_addr, &key.p);
2230 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2231
41ade00f
JB		 2232 return err;
2233}
2234
2235static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2236{
4c476991 2237 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2238 int err;
4c476991 2239 struct net_device *dev = info->user_ptr[1];
41ade00f 2240 u8 *mac_addr = NULL;
b9454e83 2241 struct key_parse key;
41ade00f 2242
b9454e83
JB		 2243 err = nl80211_parse_key(info, &key);
2244 if (err)
2245 return err;
41ade00f
JB		 2246
2247 if (info->attrs[NL80211_ATTR_MAC])
2248 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2249
e31b8213
JB		 2250 if (key.type == -1) {
2251 if (mac_addr)
2252 key.type = NL80211_KEYTYPE_PAIRWISE;
2253 else
2254 key.type = NL80211_KEYTYPE_GROUP;
2255 }
2256
2257 /* for now */
2258 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2259 key.type != NL80211_KEYTYPE_GROUP)
2260 return -EINVAL;
2261
4c476991
JB		 2262 if (!rdev->ops->del_key)
2263 return -EOPNOTSUPP;
41ade00f 2264
fffd0934
JB		 2265 wdev_lock(dev->ieee80211_ptr);
2266 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2267
2268 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2269 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2270 err = -ENOENT;
2271
fffd0934 2272 if (!err)
e31b8213
JB		 2273 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2274 key.type == NL80211_KEYTYPE_PAIRWISE,
2275 mac_addr);
41ade00f 2276
3d23e349 2277#ifdef CONFIG_CFG80211_WEXT
08645126 2278 if (!err) {
b9454e83 2279 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2280 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2281 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2282 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2283 }
2284#endif
fffd0934 2285 wdev_unlock(dev->ieee80211_ptr);
08645126 2286
41ade00f
JB		 2287 return err;
2288}
2289
8860020e
JB		 2290static int nl80211_parse_beacon(struct genl_info *info,
2291 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2292{
8860020e 2293 bool haveinfo = false;
ed1b6cc7 2294
9946ecfb
JM		 2295 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2296 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2297 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2298 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2299 return -EINVAL;
2300
8860020e 2301 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2302
ed1b6cc7 2303 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2304 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2305 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2306 if (!bcn->head_len)
2307 return -EINVAL;
2308 haveinfo = true;
ed1b6cc7
JB		 2309 }
2310
2311 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2312 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2313 bcn->tail_len =
ed1b6cc7 2314 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2315 haveinfo = true;
ed1b6cc7
JB		 2316 }
2317
4c476991
JB		 2318 if (!haveinfo)
2319 return -EINVAL;
3b85875a 2320
9946ecfb 2321 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2322 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2323 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2324 }
2325
2326 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2327 bcn->proberesp_ies =
9946ecfb 2328 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2329 bcn->proberesp_ies_len =
9946ecfb
JM		 2330 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2331 }
2332
2333 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2334 bcn->assocresp_ies =
9946ecfb 2335 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2336 bcn->assocresp_ies_len =
9946ecfb
JM		 2337 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2338 }
2339
00f740e1 2340 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2341 bcn->probe_resp =
00f740e1 2342 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2343 bcn->probe_resp_len =
00f740e1
AN		 2344 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2345 }
2346
8860020e
JB		 2347 return 0;
2348}
2349
46c1dd0c
FF		 2350static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2351 struct cfg80211_ap_settings *params)
2352{
2353 struct wireless_dev *wdev;
2354 bool ret = false;
2355
2356 mutex_lock(&rdev->devlist_mtx);
2357
2358 list_for_each_entry(wdev, &rdev->netdev_list, list) {
2359 if (wdev->iftype != NL80211_IFTYPE_AP &&
2360 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2361 continue;
2362
2363 if (!wdev->preset_chan)
2364 continue;
2365
2366 params->channel = wdev->preset_chan;
2367 params->channel_type = wdev->preset_chantype;
2368 ret = true;
2369 break;
2370 }
2371
2372 mutex_unlock(&rdev->devlist_mtx);
2373
2374 return ret;
2375}
2376
8860020e
JB		 2377static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2378{
2379 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2380 struct net_device *dev = info->user_ptr[1];
2381 struct wireless_dev *wdev = dev->ieee80211_ptr;
2382 struct cfg80211_ap_settings params;
2383 int err;
2384
2385 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2386 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2387 return -EOPNOTSUPP;
2388
2389 if (!rdev->ops->start_ap)
2390 return -EOPNOTSUPP;
2391
2392 if (wdev->beacon_interval)
2393 return -EALREADY;
2394
2395 memset(&params, 0, sizeof(params));
2396
2397 /* these are required for START_AP */
2398 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2399 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2400 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2401 return -EINVAL;
2402
2403 err = nl80211_parse_beacon(info, &params.beacon);
2404 if (err)
2405 return err;
2406
2407 params.beacon_interval =
2408 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2409 params.dtim_period =
2410 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2411
2412 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2413 if (err)
2414 return err;
2415
2416 /*
2417 * In theory, some of these attributes should be required here
2418 * but since they were not used when the command was originally
2419 * added, keep them optional for old user space programs to let
2420 * them continue to work with drivers that do not need the
2421 * additional information -- drivers must check!
2422 */
2423 if (info->attrs[NL80211_ATTR_SSID]) {
2424 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2425 params.ssid_len =
2426 nla_len(info->attrs[NL80211_ATTR_SSID]);
2427 if (params.ssid_len == 0 ||
2428 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2429 return -EINVAL;
2430 }
2431
2432 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2433 params.hidden_ssid = nla_get_u32(
2434 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2435 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2436 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2437 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2438 return -EINVAL;
2439 }
2440
2441 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2442
2443 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2444 params.auth_type = nla_get_u32(
2445 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2446 if (!nl80211_valid_auth_type(params.auth_type))
2447 return -EINVAL;
2448 } else
2449 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2450
2451 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2452 NL80211_MAX_NR_CIPHER_SUITES);
2453 if (err)
2454 return err;
2455
1b658f11
VT		 2456 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2457 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2458 return -EOPNOTSUPP;
2459 params.inactivity_timeout = nla_get_u16(
2460 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2461 }
2462
aa430da4
JB		 2463 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2464 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2465
2466 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2467 !nl80211_valid_channel_type(info, &channel_type))
2468 return -EINVAL;
2469
2470 params.channel = rdev_freq_to_chan(rdev,
2471 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2472 channel_type);
2473 if (!params.channel)
2474 return -EINVAL;
2475 params.channel_type = channel_type;
2476 } else if (wdev->preset_chan) {
2477 params.channel = wdev->preset_chan;
2478 params.channel_type = wdev->preset_chantype;
46c1dd0c 2479 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 2480 return -EINVAL;
2481
2482 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2483 params.channel_type))
2484 return -EINVAL;
2485
8860020e 2486 err = rdev->ops->start_ap(&rdev->wiphy, dev, &params);
46c1dd0c
FF		 2487 if (!err) {
2488 wdev->preset_chan = params.channel;
2489 wdev->preset_chantype = params.channel_type;
8860020e 2490 wdev->beacon_interval = params.beacon_interval;
46c1dd0c 2491 }
56d1893d 2492 return err;
ed1b6cc7
JB		 2493}
2494
8860020e
JB		 2495static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2496{
2497 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2498 struct net_device *dev = info->user_ptr[1];
2499 struct wireless_dev *wdev = dev->ieee80211_ptr;
2500 struct cfg80211_beacon_data params;
2501 int err;
2502
2503 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2504 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2505 return -EOPNOTSUPP;
2506
2507 if (!rdev->ops->change_beacon)
2508 return -EOPNOTSUPP;
2509
2510 if (!wdev->beacon_interval)
2511 return -EINVAL;
2512
2513 err = nl80211_parse_beacon(info, &params);
2514 if (err)
2515 return err;
2516
2517 return rdev->ops->change_beacon(&rdev->wiphy, dev, &params);
2518}
2519
2520static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 2521{
4c476991
JB		 2522 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2523 struct net_device *dev = info->user_ptr[1];
56d1893d
JB		 2524 struct wireless_dev *wdev = dev->ieee80211_ptr;
2525 int err;
ed1b6cc7 2526
8860020e 2527 if (!rdev->ops->stop_ap)
4c476991 2528 return -EOPNOTSUPP;
ed1b6cc7 2529
074ac8df 2530 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2531 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2532 return -EOPNOTSUPP;
3b85875a 2533
8860020e
JB		 2534 if (!wdev->beacon_interval)
2535 return -ENOENT;
2536
2537 err = rdev->ops->stop_ap(&rdev->wiphy, dev);
56d1893d
JB		 2538 if (!err)
2539 wdev->beacon_interval = 0;
2540 return err;
ed1b6cc7
JB		 2541}
2542
5727ef1b
JB		 2543static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2544 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2545 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2546 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2547 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2548 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2549 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2550};
2551
eccb8e8f 2552static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2553 enum nl80211_iftype iftype,
eccb8e8f 2554 struct station_parameters *params)
5727ef1b
JB		 2555{
2556 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2557 struct nlattr *nla;
5727ef1b
JB		 2558 int flag;
2559
eccb8e8f
JB		 2560 /*
2561 * Try parsing the new attribute first so userspace
2562 * can specify both for older kernels.
2563 */
2564 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2565 if (nla) {
2566 struct nl80211_sta_flag_update *sta_flags;
2567
2568 sta_flags = nla_data(nla);
2569 params->sta_flags_mask = sta_flags->mask;
2570 params->sta_flags_set = sta_flags->set;
2571 if ((params->sta_flags_mask |
2572 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2573 return -EINVAL;
2574 return 0;
2575 }
2576
2577 /* if present, parse the old attribute */
5727ef1b 2578
eccb8e8f 2579 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2580 if (!nla)
2581 return 0;
2582
2583 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2584 nla, sta_flags_policy))
2585 return -EINVAL;
2586
bdd3ae3d
JB		 2587 /*
2588 * Only allow certain flags for interface types so that
2589 * other attributes are silently ignored. Remember that
2590 * this is backward compatibility code with old userspace
2591 * and shouldn't be hit in other cases anyway.
2592 */
2593 switch (iftype) {
2594 case NL80211_IFTYPE_AP:
2595 case NL80211_IFTYPE_AP_VLAN:
2596 case NL80211_IFTYPE_P2P_GO:
2597 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2598 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2599 BIT(NL80211_STA_FLAG_WME) |
2600 BIT(NL80211_STA_FLAG_MFP);
2601 break;
2602 case NL80211_IFTYPE_P2P_CLIENT:
2603 case NL80211_IFTYPE_STATION:
2604 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2605 BIT(NL80211_STA_FLAG_TDLS_PEER);
2606 break;
2607 case NL80211_IFTYPE_MESH_POINT:
2608 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2609 BIT(NL80211_STA_FLAG_MFP) |
2610 BIT(NL80211_STA_FLAG_AUTHORIZED);
2611 default:
2612 return -EINVAL;
2613 }
5727ef1b 2614
3383b5a6
JB		 2615 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2616 if (flags[flag]) {
eccb8e8f 2617 params->sta_flags_set |= (1<<flag);
5727ef1b 2618
3383b5a6
JB		 2619 /* no longer support new API additions in old API */
2620 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2621 return -EINVAL;
2622 }
2623 }
2624
5727ef1b
JB		 2625 return 0;
2626}
2627
c8dcfd8a
FF		 2628static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2629 int attr)
2630{
2631 struct nlattr *rate;
2632 u16 bitrate;
2633
2634 rate = nla_nest_start(msg, attr);
2635 if (!rate)
2636 goto nla_put_failure;
2637
2638 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2639 bitrate = cfg80211_calculate_bitrate(info);
9360ffd1
DM		 2640 if ((bitrate > 0 &&
2641 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate)) ||
2642 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2643 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2644 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2645 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2646 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2647 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2648 goto nla_put_failure;
c8dcfd8a
FF		 2649
2650 nla_nest_end(msg, rate);
2651 return true;
2652
2653nla_put_failure:
2654 return false;
2655}
2656
fd5b74dc 2657static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
66266b3a
JL		 2658 int flags,
2659 struct cfg80211_registered_device *rdev,
2660 struct net_device *dev,
98b62183 2661 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2662{
2663 void *hdr;
f4263c98 2664 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2665
2666 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2667 if (!hdr)
2668 return -1;
2669
9360ffd1
DM		 2670 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2671 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2672 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2673 goto nla_put_failure;
f5ea9120 2674
2ec600d6
LCC		 2675 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2676 if (!sinfoattr)
fd5b74dc 2677 goto nla_put_failure;
9360ffd1
DM		 2678 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2679 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2680 sinfo->connected_time))
2681 goto nla_put_failure;
2682 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2683 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2684 sinfo->inactive_time))
2685 goto nla_put_failure;
2686 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2687 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2688 sinfo->rx_bytes))
2689 goto nla_put_failure;
2690 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2691 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2692 sinfo->tx_bytes))
2693 goto nla_put_failure;
2694 if ((sinfo->filled & STATION_INFO_LLID) &&
2695 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2696 goto nla_put_failure;
2697 if ((sinfo->filled & STATION_INFO_PLID) &&
2698 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2699 goto nla_put_failure;
2700 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2701 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2702 sinfo->plink_state))
2703 goto nla_put_failure;
66266b3a
JL		 2704 switch (rdev->wiphy.signal_type) {
2705 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 2706 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2707 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2708 sinfo->signal))
2709 goto nla_put_failure;
2710 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2711 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2712 sinfo->signal_avg))
2713 goto nla_put_failure;
66266b3a
JL		 2714 break;
2715 default:
2716 break;
2717 }
420e7fab 2718 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2719 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2720 NL80211_STA_INFO_TX_BITRATE))
2721 goto nla_put_failure;
2722 }
2723 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2724 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2725 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2726 goto nla_put_failure;
420e7fab 2727 }
9360ffd1
DM		 2728 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2729 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2730 sinfo->rx_packets))
2731 goto nla_put_failure;
2732 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2733 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2734 sinfo->tx_packets))
2735 goto nla_put_failure;
2736 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2737 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2738 sinfo->tx_retries))
2739 goto nla_put_failure;
2740 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2741 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2742 sinfo->tx_failed))
2743 goto nla_put_failure;
2744 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2745 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2746 sinfo->beacon_loss_count))
2747 goto nla_put_failure;
f4263c98
PS		 2748 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2749 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2750 if (!bss_param)
2751 goto nla_put_failure;
2752
9360ffd1
DM		 2753 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2754 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2755 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2756 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2757 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2758 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2759 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2760 sinfo->bss_param.dtim_period) ||
2761 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2762 sinfo->bss_param.beacon_interval))
2763 goto nla_put_failure;
f4263c98
PS		 2764
2765 nla_nest_end(msg, bss_param);
2766 }
9360ffd1
DM		 2767 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2768 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2769 sizeof(struct nl80211_sta_flag_update),
2770 &sinfo->sta_flags))
2771 goto nla_put_failure;
7eab0f64
JL		 2772 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2773 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2774 sinfo->t_offset))
2775 goto nla_put_failure;
2ec600d6 2776 nla_nest_end(msg, sinfoattr);
fd5b74dc 2777
9360ffd1
DM		 2778 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2779 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2780 sinfo->assoc_req_ies))
2781 goto nla_put_failure;
50d3dfb7 2782
fd5b74dc
JB		 2783 return genlmsg_end(msg, hdr);
2784
2785 nla_put_failure:
bc3ed28c
TG		 2786 genlmsg_cancel(msg, hdr);
2787 return -EMSGSIZE;
fd5b74dc
JB		 2788}
2789
2ec600d6 2790static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2791 struct netlink_callback *cb)
2ec600d6 2792{
2ec600d6
LCC		 2793 struct station_info sinfo;
2794 struct cfg80211_registered_device *dev;
bba95fef 2795 struct net_device *netdev;
2ec600d6 2796 u8 mac_addr[ETH_ALEN];
bba95fef 2797 int sta_idx = cb->args[1];
2ec600d6 2798 int err;
2ec600d6 2799
67748893
JB		 2800 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2801 if (err)
2802 return err;
bba95fef
JB		 2803
2804 if (!dev->ops->dump_station) {
eec60b03 2805 err = -EOPNOTSUPP;
bba95fef
JB		 2806 goto out_err;
2807 }
2808
bba95fef 2809 while (1) {
f612cedf 2810 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2811 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2812 mac_addr, &sinfo);
2813 if (err == -ENOENT)
2814 break;
2815 if (err)
3b85875a 2816 goto out_err;
bba95fef
JB		 2817
2818 if (nl80211_send_station(skb,
2819 NETLINK_CB(cb->skb).pid,
2820 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 2821 dev, netdev, mac_addr,
bba95fef
JB		 2822 &sinfo) < 0)
2823 goto out;
2824
2825 sta_idx++;
2826 }
2827
2828
2829 out:
2830 cb->args[1] = sta_idx;
2831 err = skb->len;
bba95fef 2832 out_err:
67748893 2833 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2834
2835 return err;
2ec600d6 2836}
fd5b74dc 2837
5727ef1b
JB		 2838static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2839{
4c476991
JB		 2840 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2841 struct net_device *dev = info->user_ptr[1];
2ec600d6 2842 struct station_info sinfo;
fd5b74dc
JB		 2843 struct sk_buff *msg;
2844 u8 *mac_addr = NULL;
4c476991 2845 int err;
fd5b74dc 2846
2ec600d6 2847 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2848
2849 if (!info->attrs[NL80211_ATTR_MAC])
2850 return -EINVAL;
2851
2852 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2853
4c476991
JB		 2854 if (!rdev->ops->get_station)
2855 return -EOPNOTSUPP;
3b85875a 2856
4c476991 2857 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2858 if (err)
4c476991 2859 return err;
2ec600d6 2860
fd2120ca 2861 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2862 if (!msg)
4c476991 2863 return -ENOMEM;
fd5b74dc
JB		 2864
2865 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
66266b3a 2866 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 2867 nlmsg_free(msg);
2868 return -ENOBUFS;
2869 }
3b85875a 2870
4c476991 2871 return genlmsg_reply(msg, info);
5727ef1b
JB		 2872}
2873
2874/*
c258d2de 2875 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2876 */
80b99899
JB		 2877static struct net_device *get_vlan(struct genl_info *info,
2878 struct cfg80211_registered_device *rdev)
5727ef1b 2879{
463d0183 2880 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 2881 struct net_device *v;
2882 int ret;
2883
2884 if (!vlanattr)
2885 return NULL;
2886
2887 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2888 if (!v)
2889 return ERR_PTR(-ENODEV);
2890
2891 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2892 ret = -EINVAL;
2893 goto error;
5727ef1b 2894 }
80b99899
JB		 2895
2896 if (!netif_running(v)) {
2897 ret = -ENETDOWN;
2898 goto error;
2899 }
2900
2901 return v;
2902 error:
2903 dev_put(v);
2904 return ERR_PTR(ret);
5727ef1b
JB		 2905}
2906
2907static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2908{
4c476991 2909 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2910 int err;
4c476991 2911 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2912 struct station_parameters params;
2913 u8 *mac_addr = NULL;
2914
2915 memset(&params, 0, sizeof(params));
2916
2917 params.listen_interval = -1;
57cf8043 2918 params.plink_state = -1;
5727ef1b
JB		 2919
2920 if (info->attrs[NL80211_ATTR_STA_AID])
2921 return -EINVAL;
2922
2923 if (!info->attrs[NL80211_ATTR_MAC])
2924 return -EINVAL;
2925
2926 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2927
2928 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2929 params.supported_rates =
2930 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2931 params.supported_rates_len =
2932 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2933 }
2934
2935 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2936 params.listen_interval =
2937 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2938
36aedc90
JM		 2939 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2940 params.ht_capa =
2941 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2942
bdd90d5e
JB		 2943 if (!rdev->ops->change_station)
2944 return -EOPNOTSUPP;
2945
bdd3ae3d 2946 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 2947 return -EINVAL;
2948
2ec600d6
LCC		 2949 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2950 params.plink_action =
2951 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2952
9c3990aa
JC		 2953 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2954 params.plink_state =
2955 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2956
a97f4424
JB		 2957 switch (dev->ieee80211_ptr->iftype) {
2958 case NL80211_IFTYPE_AP:
2959 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2960 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2961 /* disallow mesh-specific things */
2962 if (params.plink_action)
bdd90d5e
JB		 2963 return -EINVAL;
2964
2965 /* TDLS can't be set, ... */
2966 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2967 return -EINVAL;
2968 /*
2969 * ... but don't bother the driver with it. This works around
2970 * a hostapd/wpa_supplicant issue -- it always includes the
2971 * TLDS_PEER flag in the mask even for AP mode.
2972 */
2973 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2974
2975 /* accept only the listed bits */
2976 if (params.sta_flags_mask &
2977 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2978 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2979 BIT(NL80211_STA_FLAG_WME) |
2980 BIT(NL80211_STA_FLAG_MFP)))
2981 return -EINVAL;
2982
2983 /* must be last in here for error handling */
2984 params.vlan = get_vlan(info, rdev);
2985 if (IS_ERR(params.vlan))
2986 return PTR_ERR(params.vlan);
a97f4424 2987 break;
074ac8df 2988 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 2989 case NL80211_IFTYPE_STATION:
bdd90d5e
JB		 2990 /*
2991 * Don't allow userspace to change the TDLS_PEER flag,
2992 * but silently ignore attempts to change it since we
2993 * don't have state here to verify that it doesn't try
2994 * to change the flag.
2995 */
2996 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
267335d6
AQ		 2997 /* fall through */
2998 case NL80211_IFTYPE_ADHOC:
2999 /* disallow things sta doesn't support */
3000 if (params.plink_action)
3001 return -EINVAL;
3002 if (params.ht_capa)
3003 return -EINVAL;
3004 if (params.listen_interval >= 0)
3005 return -EINVAL;
bdd90d5e
JB		 3006 /* reject any changes other than AUTHORIZED */
3007 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3008 return -EINVAL;
a97f4424
JB		 3009 break;
3010 case NL80211_IFTYPE_MESH_POINT:
3011 /* disallow things mesh doesn't support */
3012 if (params.vlan)
bdd90d5e 3013 return -EINVAL;
a97f4424 3014 if (params.ht_capa)
bdd90d5e 3015 return -EINVAL;
a97f4424 3016 if (params.listen_interval >= 0)
bdd90d5e
JB		 3017 return -EINVAL;
3018 /*
3019 * No special handling for TDLS here -- the userspace
3020 * mesh code doesn't have this bug.
3021 */
b39c48fa
JC		 3022 if (params.sta_flags_mask &
3023 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 3024 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 3025 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 3026 return -EINVAL;
a97f4424
JB		 3027 break;
3028 default:
bdd90d5e 3029 return -EOPNOTSUPP;
034d655e
JB		 3030 }
3031
bdd90d5e 3032 /* be aware of params.vlan when changing code here */
5727ef1b 3033
79c97e97 3034 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 3035
5727ef1b
JB		 3036 if (params.vlan)
3037 dev_put(params.vlan);
3b85875a 3038
5727ef1b
JB		 3039 return err;
3040}
3041
c75786c9
EP		 3042static struct nla_policy
3043nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3044 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3045 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3046};
3047
5727ef1b
JB		 3048static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3049{
4c476991 3050 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3051 int err;
4c476991 3052 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3053 struct station_parameters params;
3054 u8 *mac_addr = NULL;
3055
3056 memset(&params, 0, sizeof(params));
3057
3058 if (!info->attrs[NL80211_ATTR_MAC])
3059 return -EINVAL;
3060
5727ef1b
JB		 3061 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3062 return -EINVAL;
3063
3064 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3065 return -EINVAL;
3066
0e956c13
TLSC		 3067 if (!info->attrs[NL80211_ATTR_STA_AID])
3068 return -EINVAL;
3069
5727ef1b
JB		 3070 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3071 params.supported_rates =
3072 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3073 params.supported_rates_len =
3074 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3075 params.listen_interval =
3076 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3077
0e956c13
TLSC		 3078 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3079 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3080 return -EINVAL;
51b50fbe 3081
36aedc90
JM		 3082 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3083 params.ht_capa =
3084 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3085
96b78dff
JC		 3086 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3087 params.plink_action =
3088 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3089
bdd90d5e
JB		 3090 if (!rdev->ops->add_station)
3091 return -EOPNOTSUPP;
3092
bdd3ae3d 3093 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3094 return -EINVAL;
3095
bdd90d5e
JB		 3096 switch (dev->ieee80211_ptr->iftype) {
3097 case NL80211_IFTYPE_AP:
3098 case NL80211_IFTYPE_AP_VLAN:
3099 case NL80211_IFTYPE_P2P_GO:
3100 /* parse WME attributes if sta is WME capable */
3101 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3102 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3103 info->attrs[NL80211_ATTR_STA_WME]) {
3104 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3105 struct nlattr *nla;
3106
3107 nla = info->attrs[NL80211_ATTR_STA_WME];
3108 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3109 nl80211_sta_wme_policy);
3110 if (err)
3111 return err;
3112
3113 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3114 params.uapsd_queues =
3115 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3116 if (params.uapsd_queues &
3117 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3118 return -EINVAL;
c75786c9 3119
bdd90d5e
JB		 3120 if (tb[NL80211_STA_WME_MAX_SP])
3121 params.max_sp =
3122 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 3123
bdd90d5e
JB		 3124 if (params.max_sp &
3125 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3126 return -EINVAL;
4319e193 3127
bdd90d5e
JB		 3128 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3129 }
3130 /* TDLS peers cannot be added */
3131 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 3132 return -EINVAL;
bdd90d5e
JB		 3133 /* but don't bother the driver with it */
3134 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 3135
bdd90d5e
JB		 3136 /* must be last in here for error handling */
3137 params.vlan = get_vlan(info, rdev);
3138 if (IS_ERR(params.vlan))
3139 return PTR_ERR(params.vlan);
3140 break;
3141 case NL80211_IFTYPE_MESH_POINT:
3142 /* TDLS peers cannot be added */
3143 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3144 return -EINVAL;
3145 break;
3146 case NL80211_IFTYPE_STATION:
3147 /* Only TDLS peers can be added */
3148 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3149 return -EINVAL;
3150 /* Can only add if TDLS ... */
3151 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3152 return -EOPNOTSUPP;
3153 /* ... with external setup is supported */
3154 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3155 return -EOPNOTSUPP;
3156 break;
3157 default:
3158 return -EOPNOTSUPP;
c75786c9
EP		 3159 }
3160
bdd90d5e 3161 /* be aware of params.vlan when changing code here */
5727ef1b 3162
79c97e97 3163 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 3164
5727ef1b
JB		 3165 if (params.vlan)
3166 dev_put(params.vlan);
5727ef1b
JB		 3167 return err;
3168}
3169
3170static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3171{
4c476991
JB		 3172 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3173 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3174 u8 *mac_addr = NULL;
3175
3176 if (info->attrs[NL80211_ATTR_MAC])
3177 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3178
e80cf853 3179 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 3180 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 3181 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 3182 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3183 return -EINVAL;
5727ef1b 3184
4c476991
JB		 3185 if (!rdev->ops->del_station)
3186 return -EOPNOTSUPP;
3b85875a 3187
4c476991 3188 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 3189}
3190
2ec600d6
LCC		 3191static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
3192 int flags, struct net_device *dev,
3193 u8 *dst, u8 *next_hop,
3194 struct mpath_info *pinfo)
3195{
3196 void *hdr;
3197 struct nlattr *pinfoattr;
3198
3199 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
3200 if (!hdr)
3201 return -1;
3202
9360ffd1
DM		 3203 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3204 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3205 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3206 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3207 goto nla_put_failure;
f5ea9120 3208
2ec600d6
LCC		 3209 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3210 if (!pinfoattr)
3211 goto nla_put_failure;
9360ffd1
DM		 3212 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3213 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3214 pinfo->frame_qlen))
3215 goto nla_put_failure;
3216 if (((pinfo->filled & MPATH_INFO_SN) &&
3217 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3218 ((pinfo->filled & MPATH_INFO_METRIC) &&
3219 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3220 pinfo->metric)) ||
3221 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3222 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3223 pinfo->exptime)) ||
3224 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3225 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3226 pinfo->flags)) ||
3227 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3228 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3229 pinfo->discovery_timeout)) ||
3230 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3231 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3232 pinfo->discovery_retries)))
3233 goto nla_put_failure;
2ec600d6
LCC		 3234
3235 nla_nest_end(msg, pinfoattr);
3236
3237 return genlmsg_end(msg, hdr);
3238
3239 nla_put_failure:
bc3ed28c
TG		 3240 genlmsg_cancel(msg, hdr);
3241 return -EMSGSIZE;
2ec600d6
LCC		 3242}
3243
3244static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 3245 struct netlink_callback *cb)
2ec600d6 3246{
2ec600d6
LCC		 3247 struct mpath_info pinfo;
3248 struct cfg80211_registered_device *dev;
bba95fef 3249 struct net_device *netdev;
2ec600d6
LCC		 3250 u8 dst[ETH_ALEN];
3251 u8 next_hop[ETH_ALEN];
bba95fef 3252 int path_idx = cb->args[1];
2ec600d6 3253 int err;
2ec600d6 3254
67748893
JB		 3255 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3256 if (err)
3257 return err;
bba95fef
JB		 3258
3259 if (!dev->ops->dump_mpath) {
eec60b03 3260 err = -EOPNOTSUPP;
bba95fef
JB		 3261 goto out_err;
3262 }
3263
eec60b03
JM		 3264 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3265 err = -EOPNOTSUPP;
0448b5fc 3266 goto out_err;
eec60b03
JM		 3267 }
3268
bba95fef
JB		 3269 while (1) {
3270 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3271 dst, next_hop, &pinfo);
3272 if (err == -ENOENT)
2ec600d6 3273 break;
bba95fef 3274 if (err)
3b85875a 3275 goto out_err;
2ec600d6 3276
bba95fef
JB		 3277 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3278 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3279 netdev, dst, next_hop,
3280 &pinfo) < 0)
3281 goto out;
2ec600d6 3282
bba95fef 3283 path_idx++;
2ec600d6 3284 }
2ec600d6 3285
2ec600d6 3286
bba95fef
JB		 3287 out:
3288 cb->args[1] = path_idx;
3289 err = skb->len;
bba95fef 3290 out_err:
67748893 3291 nl80211_finish_netdev_dump(dev);
bba95fef 3292 return err;
2ec600d6
LCC		 3293}
3294
3295static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3296{
4c476991 3297 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3298 int err;
4c476991 3299 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3300 struct mpath_info pinfo;
3301 struct sk_buff *msg;
3302 u8 *dst = NULL;
3303 u8 next_hop[ETH_ALEN];
3304
3305 memset(&pinfo, 0, sizeof(pinfo));
3306
3307 if (!info->attrs[NL80211_ATTR_MAC])
3308 return -EINVAL;
3309
3310 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3311
4c476991
JB		 3312 if (!rdev->ops->get_mpath)
3313 return -EOPNOTSUPP;
2ec600d6 3314
4c476991
JB		 3315 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3316 return -EOPNOTSUPP;
eec60b03 3317
79c97e97 3318 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 3319 if (err)
4c476991 3320 return err;
2ec600d6 3321
fd2120ca 3322 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3323 if (!msg)
4c476991 3324 return -ENOMEM;
2ec600d6
LCC		 3325
3326 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 3327 dev, dst, next_hop, &pinfo) < 0) {
3328 nlmsg_free(msg);
3329 return -ENOBUFS;
3330 }
3b85875a 3331
4c476991 3332 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3333}
3334
3335static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3336{
4c476991
JB		 3337 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3338 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3339 u8 *dst = NULL;
3340 u8 *next_hop = NULL;
3341
3342 if (!info->attrs[NL80211_ATTR_MAC])
3343 return -EINVAL;
3344
3345 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3346 return -EINVAL;
3347
3348 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3349 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3350
4c476991
JB		 3351 if (!rdev->ops->change_mpath)
3352 return -EOPNOTSUPP;
35a8efe1 3353
4c476991
JB		 3354 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3355 return -EOPNOTSUPP;
2ec600d6 3356
4c476991 3357 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 3358}
4c476991 3359
2ec600d6
LCC		 3360static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3361{
4c476991
JB		 3362 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3363 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3364 u8 *dst = NULL;
3365 u8 *next_hop = NULL;
3366
3367 if (!info->attrs[NL80211_ATTR_MAC])
3368 return -EINVAL;
3369
3370 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3371 return -EINVAL;
3372
3373 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3374 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3375
4c476991
JB		 3376 if (!rdev->ops->add_mpath)
3377 return -EOPNOTSUPP;
35a8efe1 3378
4c476991
JB		 3379 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3380 return -EOPNOTSUPP;
2ec600d6 3381
4c476991 3382 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 3383}
3384
3385static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3386{
4c476991
JB		 3387 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3388 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3389 u8 *dst = NULL;
3390
3391 if (info->attrs[NL80211_ATTR_MAC])
3392 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3393
4c476991
JB		 3394 if (!rdev->ops->del_mpath)
3395 return -EOPNOTSUPP;
3b85875a 3396
4c476991 3397 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 3398}
3399
9f1ba906
JM		 3400static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3401{
4c476991
JB		 3402 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3403 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3404 struct bss_parameters params;
3405
3406 memset(&params, 0, sizeof(params));
3407 /* default to not changing parameters */
3408 params.use_cts_prot = -1;
3409 params.use_short_preamble = -1;
3410 params.use_short_slot_time = -1;
fd8aaaf3 3411 params.ap_isolate = -1;
50b12f59 3412 params.ht_opmode = -1;
9f1ba906
JM		 3413
3414 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3415 params.use_cts_prot =
3416 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3417 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3418 params.use_short_preamble =
3419 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3420 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3421 params.use_short_slot_time =
3422 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3423 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3424 params.basic_rates =
3425 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3426 params.basic_rates_len =
3427 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3428 }
fd8aaaf3
FF		 3429 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3430 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3431 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3432 params.ht_opmode =
3433 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3434
4c476991
JB		 3435 if (!rdev->ops->change_bss)
3436 return -EOPNOTSUPP;
9f1ba906 3437
074ac8df 3438 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3439 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3440 return -EOPNOTSUPP;
3b85875a 3441
4c476991 3442 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 3443}
3444
b54452b0 3445static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3446 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3447 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3448 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3449 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3450 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3451 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3452};
3453
3454static int parse_reg_rule(struct nlattr *tb[],
3455 struct ieee80211_reg_rule *reg_rule)
3456{
3457 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3458 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3459
3460 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3461 return -EINVAL;
3462 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3463 return -EINVAL;
3464 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3465 return -EINVAL;
3466 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3467 return -EINVAL;
3468 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3469 return -EINVAL;
3470
3471 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3472
3473 freq_range->start_freq_khz =
3474 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3475 freq_range->end_freq_khz =
3476 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3477 freq_range->max_bandwidth_khz =
3478 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3479
3480 power_rule->max_eirp =
3481 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3482
3483 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3484 power_rule->max_antenna_gain =
3485 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3486
3487 return 0;
3488}
3489
3490static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3491{
3492 int r;
3493 char *data = NULL;
3494
80778f18
LR		 3495 /*
3496 * You should only get this when cfg80211 hasn't yet initialized
3497 * completely when built-in to the kernel right between the time
3498 * window between nl80211_init() and regulatory_init(), if that is
3499 * even possible.
3500 */
3501 mutex_lock(&cfg80211_mutex);
3502 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3503 mutex_unlock(&cfg80211_mutex);
3504 return -EINPROGRESS;
80778f18 3505 }
fe33eb39 3506 mutex_unlock(&cfg80211_mutex);
80778f18 3507
fe33eb39
LR		 3508 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3509 return -EINVAL;
b2e1b302
LR		 3510
3511 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3512
fe33eb39
LR		 3513 r = regulatory_hint_user(data);
3514
b2e1b302
LR		 3515 return r;
3516}
3517
24bdd9f4 3518static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3519 struct genl_info *info)
93da9cc1 3520{
4c476991 3521 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3522 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3523 struct wireless_dev *wdev = dev->ieee80211_ptr;
3524 struct mesh_config cur_params;
3525 int err = 0;
93da9cc1 3526 void *hdr;
3527 struct nlattr *pinfoattr;
3528 struct sk_buff *msg;
3529
29cbe68c
JB		 3530 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3531 return -EOPNOTSUPP;
3532
24bdd9f4 3533 if (!rdev->ops->get_mesh_config)
4c476991 3534 return -EOPNOTSUPP;
f3f92586 3535
29cbe68c
JB		 3536 wdev_lock(wdev);
3537 /* If not connected, get default parameters */
3538 if (!wdev->mesh_id_len)
3539 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3540 else
24bdd9f4 3541 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3542 &cur_params);
3543 wdev_unlock(wdev);
3544
93da9cc1 3545 if (err)
4c476991 3546 return err;
93da9cc1 3547
3548 /* Draw up a netlink message to send back */
fd2120ca 3549 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3550 if (!msg)
3551 return -ENOMEM;
93da9cc1 3552 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 3553 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3554 if (!hdr)
efe1cf0c 3555 goto out;
24bdd9f4 3556 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3557 if (!pinfoattr)
3558 goto nla_put_failure;
9360ffd1
DM		 3559 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3560 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3561 cur_params.dot11MeshRetryTimeout) ||
3562 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3563 cur_params.dot11MeshConfirmTimeout) ||
3564 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3565 cur_params.dot11MeshHoldingTimeout) ||
3566 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3567 cur_params.dot11MeshMaxPeerLinks) ||
3568 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3569 cur_params.dot11MeshMaxRetries) ||
3570 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3571 cur_params.dot11MeshTTL) ||
3572 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3573 cur_params.element_ttl) ||
3574 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3575 cur_params.auto_open_plinks) ||
7eab0f64
JL		 3576 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3577 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 3578 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3579 cur_params.dot11MeshHWMPmaxPREQretries) ||
3580 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3581 cur_params.path_refresh_time) ||
3582 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3583 cur_params.min_discovery_timeout) ||
3584 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3585 cur_params.dot11MeshHWMPactivePathTimeout) ||
3586 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3587 cur_params.dot11MeshHWMPpreqMinInterval) ||
3588 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3589 cur_params.dot11MeshHWMPperrMinInterval) ||
3590 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3591 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3592 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3593 cur_params.dot11MeshHWMPRootMode) ||
3594 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3595 cur_params.dot11MeshHWMPRannInterval) ||
3596 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3597 cur_params.dot11MeshGateAnnouncementProtocol) ||
3598 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3599 cur_params.dot11MeshForwarding) ||
3600 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 3601 cur_params.rssi_threshold) ||
3602 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3603 cur_params.ht_opmode) ||
3604 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3605 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3606 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3607 cur_params.dot11MeshHWMProotInterval) ||
3608 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3609 cur_params.dot11MeshHWMPconfirmationInterval))
9360ffd1 3610 goto nla_put_failure;
93da9cc1 3611 nla_nest_end(msg, pinfoattr);
3612 genlmsg_end(msg, hdr);
4c476991 3613 return genlmsg_reply(msg, info);
93da9cc1 3614
3b85875a 3615 nla_put_failure:
93da9cc1 3616 genlmsg_cancel(msg, hdr);
efe1cf0c 3617 out:
d080e275 3618 nlmsg_free(msg);
4c476991 3619 return -ENOBUFS;
93da9cc1 3620}
3621
b54452b0 3622static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3623 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3624 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3625 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3626 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3627 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3628 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3629 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3630 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 3631 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 3632 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3633 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3634 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3635 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3636 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3637 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3638 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3639 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3640 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3641 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 3642 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 3643 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3644 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 3645 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3646 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 3647 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3648};
3649
c80d545d
JC		 3650static const struct nla_policy
3651 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 3652 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 3653 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3654 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3655 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3656 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 3657 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3658 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3659};
3660
24bdd9f4 3661static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3662 struct mesh_config *cfg,
3663 u32 *mask_out)
93da9cc1 3664{
93da9cc1 3665 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3666 u32 mask = 0;
93da9cc1 3667
bd90fdcc
JB		 3668#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3669do {\
3670 if (table[attr_num]) {\
3671 cfg->param = nla_fn(table[attr_num]); \
3672 mask |= (1 << (attr_num - 1)); \
3673 } \
3674} while (0);\
3675
3676
24bdd9f4 3677 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3678 return -EINVAL;
3679 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3680 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3681 nl80211_meshconf_params_policy))
93da9cc1 3682 return -EINVAL;
3683
93da9cc1 3684 /* This makes sure that there aren't more than 32 mesh config
3685 * parameters (otherwise our bitfield scheme would not work.) */
3686 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3687
3688 /* Fill in the params struct */
93da9cc1 3689 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
a4f606ea
CYY		 3690 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3691 nla_get_u16);
93da9cc1 3692 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
a4f606ea
CYY		 3693 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3694 nla_get_u16);
93da9cc1 3695 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
a4f606ea
CYY		 3696 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3697 nla_get_u16);
93da9cc1 3698 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
a4f606ea
CYY		 3699 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3700 nla_get_u16);
93da9cc1 3701 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
a4f606ea
CYY		 3702 mask, NL80211_MESHCONF_MAX_RETRIES,
3703 nla_get_u8);
93da9cc1 3704 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
a4f606ea 3705 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21 3706 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
a4f606ea
CYY		 3707 mask, NL80211_MESHCONF_ELEMENT_TTL,
3708 nla_get_u8);
93da9cc1 3709 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
a4f606ea
CYY		 3710 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3711 nla_get_u8);
3712 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3713 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3714 nla_get_u32);
93da9cc1 3715 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
a4f606ea
CYY		 3716 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3717 nla_get_u8);
93da9cc1 3718 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
a4f606ea
CYY		 3719 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3720 nla_get_u32);
93da9cc1 3721 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
a4f606ea
CYY		 3722 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3723 nla_get_u16);
3724 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3725 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3726 nla_get_u32);
93da9cc1 3727 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
a4f606ea
CYY		 3728 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3729 nla_get_u16);
dca7e943 3730 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
a4f606ea
CYY		 3731 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3732 nla_get_u16);
0507e159 3733 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 3734 dot11MeshHWMPnetDiameterTraversalTime, mask,
3735 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3736 nla_get_u16);
3737 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3738 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3739 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3740 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3741 nla_get_u16);
16dd7267 3742 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 3743 dot11MeshGateAnnouncementProtocol, mask,
3744 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3745 nla_get_u8);
94f90656 3746 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
a4f606ea
CYY		 3747 mask, NL80211_MESHCONF_FORWARDING,
3748 nla_get_u8);
55335137 3749 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
a4f606ea
CYY		 3750 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3751 nla_get_u32);
70c33eaa 3752 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
a4f606ea 3753 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3754 nla_get_u16);
3755 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3756 mask,
3757 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3758 nla_get_u32);
3759 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3760 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3761 nla_get_u16);
3762 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3763 dot11MeshHWMPconfirmationInterval, mask,
3764 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 3765 nla_get_u16);
bd90fdcc
JB		 3766 if (mask_out)
3767 *mask_out = mask;
c80d545d 3768
bd90fdcc
JB		 3769 return 0;
3770
3771#undef FILL_IN_MESH_PARAM_IF_SET
3772}
3773
c80d545d
JC		 3774static int nl80211_parse_mesh_setup(struct genl_info *info,
3775 struct mesh_setup *setup)
3776{
3777 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3778
3779 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3780 return -EINVAL;
3781 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3782 info->attrs[NL80211_ATTR_MESH_SETUP],
3783 nl80211_mesh_setup_params_policy))
3784 return -EINVAL;
3785
d299a1f2
JC		 3786 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3787 setup->sync_method =
3788 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3789 IEEE80211_SYNC_METHOD_VENDOR :
3790 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3791
c80d545d
JC		 3792 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3793 setup->path_sel_proto =
3794 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3795 IEEE80211_PATH_PROTOCOL_VENDOR :
3796 IEEE80211_PATH_PROTOCOL_HWMP;
3797
3798 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3799 setup->path_metric =
3800 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3801 IEEE80211_PATH_METRIC_VENDOR :
3802 IEEE80211_PATH_METRIC_AIRTIME;
3803
581a8b0f
JC		 3804
3805 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3806 struct nlattr *ieattr =
581a8b0f 3807 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3808 if (!is_valid_ie_attr(ieattr))
3809 return -EINVAL;
581a8b0f
JC		 3810 setup->ie = nla_data(ieattr);
3811 setup->ie_len = nla_len(ieattr);
c80d545d 3812 }
b130e5ce
JC		 3813 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3814 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3815
3816 return 0;
3817}
3818
24bdd9f4 3819static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3820 struct genl_info *info)
bd90fdcc
JB		 3821{
3822 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3823 struct net_device *dev = info->user_ptr[1];
29cbe68c 3824 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3825 struct mesh_config cfg;
3826 u32 mask;
3827 int err;
3828
29cbe68c
JB		 3829 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3830 return -EOPNOTSUPP;
3831
24bdd9f4 3832 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3833 return -EOPNOTSUPP;
3834
24bdd9f4 3835 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3836 if (err)
3837 return err;
3838
29cbe68c
JB		 3839 wdev_lock(wdev);
3840 if (!wdev->mesh_id_len)
3841 err = -ENOLINK;
3842
3843 if (!err)
24bdd9f4 3844 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3845 mask, &cfg);
3846
3847 wdev_unlock(wdev);
3848
3849 return err;
93da9cc1 3850}
3851
f130347c
LR		 3852static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3853{
3854 struct sk_buff *msg;
3855 void *hdr = NULL;
3856 struct nlattr *nl_reg_rules;
3857 unsigned int i;
3858 int err = -EINVAL;
3859
a1794390 3860 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3861
3862 if (!cfg80211_regdomain)
3863 goto out;
3864
fd2120ca 3865 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3866 if (!msg) {
3867 err = -ENOBUFS;
3868 goto out;
3869 }
3870
3871 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3872 NL80211_CMD_GET_REG);
3873 if (!hdr)
efe1cf0c 3874 goto put_failure;
f130347c 3875
9360ffd1
DM		 3876 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
3877 cfg80211_regdomain->alpha2) ||
3878 (cfg80211_regdomain->dfs_region &&
3879 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
3880 cfg80211_regdomain->dfs_region)))
3881 goto nla_put_failure;
f130347c
LR		 3882
3883 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3884 if (!nl_reg_rules)
3885 goto nla_put_failure;
3886
3887 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3888 struct nlattr *nl_reg_rule;
3889 const struct ieee80211_reg_rule *reg_rule;
3890 const struct ieee80211_freq_range *freq_range;
3891 const struct ieee80211_power_rule *power_rule;
3892
3893 reg_rule = &cfg80211_regdomain->reg_rules[i];
3894 freq_range = &reg_rule->freq_range;
3895 power_rule = &reg_rule->power_rule;
3896
3897 nl_reg_rule = nla_nest_start(msg, i);
3898 if (!nl_reg_rule)
3899 goto nla_put_failure;
3900
9360ffd1
DM		 3901 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3902 reg_rule->flags) ||
3903 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
3904 freq_range->start_freq_khz) ||
3905 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
3906 freq_range->end_freq_khz) ||
3907 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3908 freq_range->max_bandwidth_khz) ||
3909 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3910 power_rule->max_antenna_gain) ||
3911 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3912 power_rule->max_eirp))
3913 goto nla_put_failure;
f130347c
LR		 3914
3915 nla_nest_end(msg, nl_reg_rule);
3916 }
3917
3918 nla_nest_end(msg, nl_reg_rules);
3919
3920 genlmsg_end(msg, hdr);
134e6375 3921 err = genlmsg_reply(msg, info);
f130347c
LR		 3922 goto out;
3923
3924nla_put_failure:
3925 genlmsg_cancel(msg, hdr);
efe1cf0c 3926put_failure:
d080e275 3927 nlmsg_free(msg);
f130347c
LR		 3928 err = -EMSGSIZE;
3929out:
a1794390 3930 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3931 return err;
3932}
3933
b2e1b302
LR		 3934static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3935{
3936 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3937 struct nlattr *nl_reg_rule;
3938 char *alpha2 = NULL;
3939 int rem_reg_rules = 0, r = 0;
3940 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 3941 u8 dfs_region = 0;
b2e1b302
LR		 3942 struct ieee80211_regdomain *rd = NULL;
3943
3944 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3945 return -EINVAL;
3946
3947 if (!info->attrs[NL80211_ATTR_REG_RULES])
3948 return -EINVAL;
3949
3950 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3951
8b60b078
LR		 3952 if (info->attrs[NL80211_ATTR_DFS_REGION])
3953 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3954
b2e1b302
LR		 3955 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3956 rem_reg_rules) {
3957 num_rules++;
3958 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3959 return -EINVAL;
b2e1b302
LR		 3960 }
3961
61405e97
LR		 3962 mutex_lock(&cfg80211_mutex);
3963
d0e18f83
LR		 3964 if (!reg_is_valid_request(alpha2)) {
3965 r = -EINVAL;
3966 goto bad_reg;
3967 }
b2e1b302
LR		 3968
3969 size_of_regd = sizeof(struct ieee80211_regdomain) +
3970 (num_rules * sizeof(struct ieee80211_reg_rule));
3971
3972 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3973 if (!rd) {
3974 r = -ENOMEM;
3975 goto bad_reg;
3976 }
b2e1b302
LR		 3977
3978 rd->n_reg_rules = num_rules;
3979 rd->alpha2[0] = alpha2[0];
3980 rd->alpha2[1] = alpha2[1];
3981
8b60b078
LR		 3982 /*
3983 * Disable DFS master mode if the DFS region was
3984 * not supported or known on this kernel.
3985 */
3986 if (reg_supported_dfs_region(dfs_region))
3987 rd->dfs_region = dfs_region;
3988
b2e1b302
LR		 3989 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3990 rem_reg_rules) {
3991 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3992 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3993 reg_rule_policy);
3994 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3995 if (r)
3996 goto bad_reg;
3997
3998 rule_idx++;
3999
d0e18f83
LR		 4000 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4001 r = -EINVAL;
b2e1b302 4002 goto bad_reg;
d0e18f83 4003 }
b2e1b302
LR		 4004 }
4005
4006 BUG_ON(rule_idx != num_rules);
4007
b2e1b302 4008 r = set_regdom(rd);
61405e97 4009
a1794390 4010 mutex_unlock(&cfg80211_mutex);
d0e18f83 4011
b2e1b302
LR		 4012 return r;
4013
d2372b31 4014 bad_reg:
61405e97 4015 mutex_unlock(&cfg80211_mutex);
b2e1b302 4016 kfree(rd);
d0e18f83 4017 return r;
b2e1b302
LR		 4018}
4019
83f5e2cf
JB		 4020static int validate_scan_freqs(struct nlattr *freqs)
4021{
4022 struct nlattr *attr1, *attr2;
4023 int n_channels = 0, tmp1, tmp2;
4024
4025 nla_for_each_nested(attr1, freqs, tmp1) {
4026 n_channels++;
4027 /*
4028 * Some hardware has a limited channel list for
4029 * scanning, and it is pretty much nonsensical
4030 * to scan for a channel twice, so disallow that
4031 * and don't require drivers to check that the
4032 * channel list they get isn't longer than what
4033 * they can scan, as long as they can scan all
4034 * the channels they registered at once.
4035 */
4036 nla_for_each_nested(attr2, freqs, tmp2)
4037 if (attr1 != attr2 &&
4038 nla_get_u32(attr1) == nla_get_u32(attr2))
4039 return 0;
4040 }
4041
4042 return n_channels;
4043}
4044
2a519311
JB		 4045static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4046{
4c476991
JB		 4047 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4048 struct net_device *dev = info->user_ptr[1];
2a519311 4049 struct cfg80211_scan_request *request;
2a519311
JB		 4050 struct nlattr *attr;
4051 struct wiphy *wiphy;
83f5e2cf 4052 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 4053 size_t ie_len;
2a519311 4054
f4a11bb0
JB		 4055 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4056 return -EINVAL;
4057
79c97e97 4058 wiphy = &rdev->wiphy;
2a519311 4059
4c476991
JB		 4060 if (!rdev->ops->scan)
4061 return -EOPNOTSUPP;
2a519311 4062
4c476991
JB		 4063 if (rdev->scan_req)
4064 return -EBUSY;
2a519311
JB		 4065
4066 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 4067 n_channels = validate_scan_freqs(
4068 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 4069 if (!n_channels)
4070 return -EINVAL;
2a519311 4071 } else {
34850ab2 4072 enum ieee80211_band band;
83f5e2cf
JB		 4073 n_channels = 0;
4074
2a519311
JB		 4075 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4076 if (wiphy->bands[band])
4077 n_channels += wiphy->bands[band]->n_channels;
4078 }
4079
4080 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4081 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4082 n_ssids++;
4083
4c476991
JB		 4084 if (n_ssids > wiphy->max_scan_ssids)
4085 return -EINVAL;
2a519311 4086
70692ad2
JM		 4087 if (info->attrs[NL80211_ATTR_IE])
4088 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4089 else
4090 ie_len = 0;
4091
4c476991
JB		 4092 if (ie_len > wiphy->max_scan_ie_len)
4093 return -EINVAL;
18a83659 4094
2a519311 4095 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 4096 + sizeof(*request->ssids) * n_ssids
4097 + sizeof(*request->channels) * n_channels
70692ad2 4098 + ie_len, GFP_KERNEL);
4c476991
JB		 4099 if (!request)
4100 return -ENOMEM;
2a519311 4101
2a519311 4102 if (n_ssids)
5ba63533 4103 request->ssids = (void *)&request->channels[n_channels];
2a519311 4104 request->n_ssids = n_ssids;
70692ad2
JM		 4105 if (ie_len) {
4106 if (request->ssids)
4107 request->ie = (void *)(request->ssids + n_ssids);
4108 else
4109 request->ie = (void *)(request->channels + n_channels);
4110 }
2a519311 4111
584991dc 4112 i = 0;
2a519311
JB		 4113 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4114 /* user specified, bail out if channel not found */
2a519311 4115 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 4116 struct ieee80211_channel *chan;
4117
4118 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4119
4120 if (!chan) {
2a519311
JB		 4121 err = -EINVAL;
4122 goto out_free;
4123 }
584991dc
JB		 4124
4125 /* ignore disabled channels */
4126 if (chan->flags & IEEE80211_CHAN_DISABLED)
4127 continue;
4128
4129 request->channels[i] = chan;
2a519311
JB		 4130 i++;
4131 }
4132 } else {
34850ab2
JB		 4133 enum ieee80211_band band;
4134
2a519311 4135 /* all channels */
2a519311
JB		 4136 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4137 int j;
4138 if (!wiphy->bands[band])
4139 continue;
4140 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 4141 struct ieee80211_channel *chan;
4142
4143 chan = &wiphy->bands[band]->channels[j];
4144
4145 if (chan->flags & IEEE80211_CHAN_DISABLED)
4146 continue;
4147
4148 request->channels[i] = chan;
2a519311
JB		 4149 i++;
4150 }
4151 }
4152 }
4153
584991dc
JB		 4154 if (!i) {
4155 err = -EINVAL;
4156 goto out_free;
4157 }
4158
4159 request->n_channels = i;
4160
2a519311
JB		 4161 i = 0;
4162 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4163 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 4164 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 4165 err = -EINVAL;
4166 goto out_free;
4167 }
57a27e1d 4168 request->ssids[i].ssid_len = nla_len(attr);
2a519311 4169 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 4170 i++;
4171 }
4172 }
4173
70692ad2
JM		 4174 if (info->attrs[NL80211_ATTR_IE]) {
4175 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 4176 memcpy((void *)request->ie,
4177 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 4178 request->ie_len);
4179 }
4180
34850ab2 4181 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 4182 if (wiphy->bands[i])
4183 request->rates[i] =
4184 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 4185
4186 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4187 nla_for_each_nested(attr,
4188 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4189 tmp) {
4190 enum ieee80211_band band = nla_type(attr);
4191
84404623 4192 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 4193 err = -EINVAL;
4194 goto out_free;
4195 }
4196 err = ieee80211_get_ratemask(wiphy->bands[band],
4197 nla_data(attr),
4198 nla_len(attr),
4199 &request->rates[band]);
4200 if (err)
4201 goto out_free;
4202 }
4203 }
4204
e9f935e3
RM		 4205 request->no_cck =
4206 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4207
463d0183 4208 request->dev = dev;
79c97e97 4209 request->wiphy = &rdev->wiphy;
2a519311 4210
79c97e97
JB		 4211 rdev->scan_req = request;
4212 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 4213
463d0183 4214 if (!err) {
79c97e97 4215 nl80211_send_scan_start(rdev, dev);
463d0183 4216 dev_hold(dev);
4c476991 4217 } else {
2a519311 4218 out_free:
79c97e97 4219 rdev->scan_req = NULL;
2a519311
JB		 4220 kfree(request);
4221 }
3b85875a 4222
2a519311
JB		 4223 return err;
4224}
4225
807f8a8c
LC		 4226static int nl80211_start_sched_scan(struct sk_buff *skb,
4227 struct genl_info *info)
4228{
4229 struct cfg80211_sched_scan_request *request;
4230 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4231 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 4232 struct nlattr *attr;
4233 struct wiphy *wiphy;
a1f1c21c 4234 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 4235 u32 interval;
807f8a8c
LC		 4236 enum ieee80211_band band;
4237 size_t ie_len;
a1f1c21c 4238 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 4239
4240 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4241 !rdev->ops->sched_scan_start)
4242 return -EOPNOTSUPP;
4243
4244 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4245 return -EINVAL;
4246
bbe6ad6d
LC		 4247 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4248 return -EINVAL;
4249
4250 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4251 if (interval == 0)
4252 return -EINVAL;
4253
807f8a8c
LC		 4254 wiphy = &rdev->wiphy;
4255
4256 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4257 n_channels = validate_scan_freqs(
4258 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4259 if (!n_channels)
4260 return -EINVAL;
4261 } else {
4262 n_channels = 0;
4263
4264 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4265 if (wiphy->bands[band])
4266 n_channels += wiphy->bands[band]->n_channels;
4267 }
4268
4269 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4270 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4271 tmp)
4272 n_ssids++;
4273
93b6aa69 4274 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 4275 return -EINVAL;
4276
a1f1c21c
LC		 4277 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4278 nla_for_each_nested(attr,
4279 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4280 tmp)
4281 n_match_sets++;
4282
4283 if (n_match_sets > wiphy->max_match_sets)
4284 return -EINVAL;
4285
807f8a8c
LC		 4286 if (info->attrs[NL80211_ATTR_IE])
4287 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4288 else
4289 ie_len = 0;
4290
5a865bad 4291 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 4292 return -EINVAL;
4293
c10841ca
LC		 4294 mutex_lock(&rdev->sched_scan_mtx);
4295
4296 if (rdev->sched_scan_req) {
4297 err = -EINPROGRESS;
4298 goto out;
4299 }
4300
807f8a8c 4301 request = kzalloc(sizeof(*request)
a2cd43c5 4302 + sizeof(*request->ssids) * n_ssids
a1f1c21c 4303 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 4304 + sizeof(*request->channels) * n_channels
807f8a8c 4305 + ie_len, GFP_KERNEL);
c10841ca
LC		 4306 if (!request) {
4307 err = -ENOMEM;
4308 goto out;
4309 }
807f8a8c
LC		 4310
4311 if (n_ssids)
4312 request->ssids = (void *)&request->channels[n_channels];
4313 request->n_ssids = n_ssids;
4314 if (ie_len) {
4315 if (request->ssids)
4316 request->ie = (void *)(request->ssids + n_ssids);
4317 else
4318 request->ie = (void *)(request->channels + n_channels);
4319 }
4320
a1f1c21c
LC		 4321 if (n_match_sets) {
4322 if (request->ie)
4323 request->match_sets = (void *)(request->ie + ie_len);
4324 else if (request->ssids)
4325 request->match_sets =
4326 (void *)(request->ssids + n_ssids);
4327 else
4328 request->match_sets =
4329 (void *)(request->channels + n_channels);
4330 }
4331 request->n_match_sets = n_match_sets;
4332
807f8a8c
LC		 4333 i = 0;
4334 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4335 /* user specified, bail out if channel not found */
4336 nla_for_each_nested(attr,
4337 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4338 tmp) {
4339 struct ieee80211_channel *chan;
4340
4341 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4342
4343 if (!chan) {
4344 err = -EINVAL;
4345 goto out_free;
4346 }
4347
4348 /* ignore disabled channels */
4349 if (chan->flags & IEEE80211_CHAN_DISABLED)
4350 continue;
4351
4352 request->channels[i] = chan;
4353 i++;
4354 }
4355 } else {
4356 /* all channels */
4357 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4358 int j;
4359 if (!wiphy->bands[band])
4360 continue;
4361 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4362 struct ieee80211_channel *chan;
4363
4364 chan = &wiphy->bands[band]->channels[j];
4365
4366 if (chan->flags & IEEE80211_CHAN_DISABLED)
4367 continue;
4368
4369 request->channels[i] = chan;
4370 i++;
4371 }
4372 }
4373 }
4374
4375 if (!i) {
4376 err = -EINVAL;
4377 goto out_free;
4378 }
4379
4380 request->n_channels = i;
4381
4382 i = 0;
4383 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4384 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4385 tmp) {
57a27e1d 4386 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 4387 err = -EINVAL;
4388 goto out_free;
4389 }
57a27e1d 4390 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4391 memcpy(request->ssids[i].ssid, nla_data(attr),
4392 nla_len(attr));
807f8a8c
LC		 4393 i++;
4394 }
4395 }
4396
a1f1c21c
LC		 4397 i = 0;
4398 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4399 nla_for_each_nested(attr,
4400 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4401 tmp) {
88e920b4 4402 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 4403
4404 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4405 nla_data(attr), nla_len(attr),
4406 nl80211_match_policy);
4a4ab0d7 4407 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 4408 if (ssid) {
4409 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4410 err = -EINVAL;
4411 goto out_free;
4412 }
4413 memcpy(request->match_sets[i].ssid.ssid,
4414 nla_data(ssid), nla_len(ssid));
4415 request->match_sets[i].ssid.ssid_len =
4416 nla_len(ssid);
4417 }
88e920b4
TP		 4418 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4419 if (rssi)
4420 request->rssi_thold = nla_get_u32(rssi);
4421 else
4422 request->rssi_thold =
4423 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 4424 i++;
4425 }
4426 }
4427
807f8a8c
LC		 4428 if (info->attrs[NL80211_ATTR_IE]) {
4429 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4430 memcpy((void *)request->ie,
4431 nla_data(info->attrs[NL80211_ATTR_IE]),
4432 request->ie_len);
4433 }
4434
4435 request->dev = dev;
4436 request->wiphy = &rdev->wiphy;
bbe6ad6d 4437 request->interval = interval;
807f8a8c
LC		 4438
4439 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4440 if (!err) {
4441 rdev->sched_scan_req = request;
4442 nl80211_send_sched_scan(rdev, dev,
4443 NL80211_CMD_START_SCHED_SCAN);
4444 goto out;
4445 }
4446
4447out_free:
4448 kfree(request);
4449out:
c10841ca 4450 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4451 return err;
4452}
4453
4454static int nl80211_stop_sched_scan(struct sk_buff *skb,
4455 struct genl_info *info)
4456{
4457 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4458 int err;
807f8a8c
LC		 4459
4460 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4461 !rdev->ops->sched_scan_stop)
4462 return -EOPNOTSUPP;
4463
c10841ca
LC		 4464 mutex_lock(&rdev->sched_scan_mtx);
4465 err = __cfg80211_stop_sched_scan(rdev, false);
4466 mutex_unlock(&rdev->sched_scan_mtx);
4467
4468 return err;
807f8a8c
LC		 4469}
4470
9720bb3a
JB		 4471static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4472 u32 seq, int flags,
2a519311 4473 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4474 struct wireless_dev *wdev,
4475 struct cfg80211_internal_bss *intbss)
2a519311 4476{
48ab905d 4477 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 4478 void *hdr;
4479 struct nlattr *bss;
48ab905d
JB		 4480
4481 ASSERT_WDEV_LOCK(wdev);
2a519311 4482
9720bb3a 4483 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
2a519311
JB		 4484 NL80211_CMD_NEW_SCAN_RESULTS);
4485 if (!hdr)
4486 return -1;
4487
9720bb3a
JB		 4488 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4489
9360ffd1
DM		 4490 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4491 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4492 goto nla_put_failure;
2a519311
JB		 4493
4494 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4495 if (!bss)
4496 goto nla_put_failure;
9360ffd1
DM		 4497 if ((!is_zero_ether_addr(res->bssid) &&
4498 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4499 (res->information_elements && res->len_information_elements &&
4500 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4501 res->len_information_elements,
4502 res->information_elements)) ||
4503 (res->beacon_ies && res->len_beacon_ies &&
4504 res->beacon_ies != res->information_elements &&
4505 nla_put(msg, NL80211_BSS_BEACON_IES,
4506 res->len_beacon_ies, res->beacon_ies)))
4507 goto nla_put_failure;
4508 if (res->tsf &&
4509 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4510 goto nla_put_failure;
4511 if (res->beacon_interval &&
4512 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4513 goto nla_put_failure;
4514 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4515 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4516 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4517 jiffies_to_msecs(jiffies - intbss->ts)))
4518 goto nla_put_failure;
2a519311 4519
77965c97 4520 switch (rdev->wiphy.signal_type) {
2a519311 4521 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 4522 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4523 goto nla_put_failure;
2a519311
JB		 4524 break;
4525 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 4526 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4527 goto nla_put_failure;
2a519311
JB		 4528 break;
4529 default:
4530 break;
4531 }
4532
48ab905d 4533 switch (wdev->iftype) {
074ac8df 4534 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 4535 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 4536 if (intbss == wdev->current_bss &&
4537 nla_put_u32(msg, NL80211_BSS_STATUS,
4538 NL80211_BSS_STATUS_ASSOCIATED))
4539 goto nla_put_failure;
48ab905d
JB		 4540 break;
4541 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 4542 if (intbss == wdev->current_bss &&
4543 nla_put_u32(msg, NL80211_BSS_STATUS,
4544 NL80211_BSS_STATUS_IBSS_JOINED))
4545 goto nla_put_failure;
48ab905d
JB		 4546 break;
4547 default:
4548 break;
4549 }
4550
2a519311
JB		 4551 nla_nest_end(msg, bss);
4552
4553 return genlmsg_end(msg, hdr);
4554
4555 nla_put_failure:
4556 genlmsg_cancel(msg, hdr);
4557 return -EMSGSIZE;
4558}
4559
4560static int nl80211_dump_scan(struct sk_buff *skb,
4561 struct netlink_callback *cb)
4562{
48ab905d
JB		 4563 struct cfg80211_registered_device *rdev;
4564 struct net_device *dev;
2a519311 4565 struct cfg80211_internal_bss *scan;
48ab905d 4566 struct wireless_dev *wdev;
2a519311
JB		 4567 int start = cb->args[1], idx = 0;
4568 int err;
4569
67748893
JB		 4570 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4571 if (err)
4572 return err;
2a519311 4573
48ab905d 4574 wdev = dev->ieee80211_ptr;
2a519311 4575
48ab905d
JB		 4576 wdev_lock(wdev);
4577 spin_lock_bh(&rdev->bss_lock);
4578 cfg80211_bss_expire(rdev);
4579
9720bb3a
JB		 4580 cb->seq = rdev->bss_generation;
4581
48ab905d 4582 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4583 if (++idx <= start)
4584 continue;
9720bb3a 4585 if (nl80211_send_bss(skb, cb,
2a519311 4586 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4587 rdev, wdev, scan) < 0) {
2a519311 4588 idx--;
67748893 4589 break;
2a519311
JB		 4590 }
4591 }
4592
48ab905d
JB		 4593 spin_unlock_bh(&rdev->bss_lock);
4594 wdev_unlock(wdev);
2a519311
JB		 4595
4596 cb->args[1] = idx;
67748893 4597 nl80211_finish_netdev_dump(rdev);
2a519311 4598
67748893 4599 return skb->len;
2a519311
JB		 4600}
4601
61fa713c
HS		 4602static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4603 int flags, struct net_device *dev,
4604 struct survey_info *survey)
4605{
4606 void *hdr;
4607 struct nlattr *infoattr;
4608
61fa713c
HS		 4609 hdr = nl80211hdr_put(msg, pid, seq, flags,
4610 NL80211_CMD_NEW_SURVEY_RESULTS);
4611 if (!hdr)
4612 return -ENOMEM;
4613
9360ffd1
DM		 4614 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4615 goto nla_put_failure;
61fa713c
HS		 4616
4617 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4618 if (!infoattr)
4619 goto nla_put_failure;
4620
9360ffd1
DM		 4621 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4622 survey->channel->center_freq))
4623 goto nla_put_failure;
4624
4625 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4626 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4627 goto nla_put_failure;
4628 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4629 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4630 goto nla_put_failure;
4631 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4632 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4633 survey->channel_time))
4634 goto nla_put_failure;
4635 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4636 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4637 survey->channel_time_busy))
4638 goto nla_put_failure;
4639 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4640 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4641 survey->channel_time_ext_busy))
4642 goto nla_put_failure;
4643 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4644 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4645 survey->channel_time_rx))
4646 goto nla_put_failure;
4647 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4648 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4649 survey->channel_time_tx))
4650 goto nla_put_failure;
61fa713c
HS		 4651
4652 nla_nest_end(msg, infoattr);
4653
4654 return genlmsg_end(msg, hdr);
4655
4656 nla_put_failure:
4657 genlmsg_cancel(msg, hdr);
4658 return -EMSGSIZE;
4659}
4660
4661static int nl80211_dump_survey(struct sk_buff *skb,
4662 struct netlink_callback *cb)
4663{
4664 struct survey_info survey;
4665 struct cfg80211_registered_device *dev;
4666 struct net_device *netdev;
61fa713c
HS		 4667 int survey_idx = cb->args[1];
4668 int res;
4669
67748893
JB		 4670 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4671 if (res)
4672 return res;
61fa713c
HS		 4673
4674 if (!dev->ops->dump_survey) {
4675 res = -EOPNOTSUPP;
4676 goto out_err;
4677 }
4678
4679 while (1) {
180cdc79
LR		 4680 struct ieee80211_channel *chan;
4681
61fa713c
HS		 4682 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4683 &survey);
4684 if (res == -ENOENT)
4685 break;
4686 if (res)
4687 goto out_err;
4688
180cdc79
LR		 4689 /* Survey without a channel doesn't make sense */
4690 if (!survey.channel) {
4691 res = -EINVAL;
4692 goto out;
4693 }
4694
4695 chan = ieee80211_get_channel(&dev->wiphy,
4696 survey.channel->center_freq);
4697 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4698 survey_idx++;
4699 continue;
4700 }
4701
61fa713c
HS		 4702 if (nl80211_send_survey(skb,
4703 NETLINK_CB(cb->skb).pid,
4704 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4705 netdev,
4706 &survey) < 0)
4707 goto out;
4708 survey_idx++;
4709 }
4710
4711 out:
4712 cb->args[1] = survey_idx;
4713 res = skb->len;
4714 out_err:
67748893 4715 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4716 return res;
4717}
4718
255e737e
JM		 4719static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4720{
b23aa676
SO		 4721 return auth_type <= NL80211_AUTHTYPE_MAX;
4722}
4723
4724static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4725{
4726 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4727 NL80211_WPA_VERSION_2));
4728}
4729
636a5d36
JM		 4730static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4731{
4c476991
JB		 4732 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4733 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 4734 struct ieee80211_channel *chan;
4735 const u8 *bssid, *ssid, *ie = NULL;
4736 int err, ssid_len, ie_len = 0;
4737 enum nl80211_auth_type auth_type;
fffd0934 4738 struct key_parse key;
d5cdfacb 4739 bool local_state_change;
636a5d36 4740
f4a11bb0
JB		 4741 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4742 return -EINVAL;
4743
4744 if (!info->attrs[NL80211_ATTR_MAC])
4745 return -EINVAL;
4746
1778092e
JM		 4747 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4748 return -EINVAL;
4749
19957bb3
JB		 4750 if (!info->attrs[NL80211_ATTR_SSID])
4751 return -EINVAL;
4752
4753 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4754 return -EINVAL;
4755
fffd0934
JB		 4756 err = nl80211_parse_key(info, &key);
4757 if (err)
4758 return err;
4759
4760 if (key.idx >= 0) {
e31b8213
JB		 4761 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4762 return -EINVAL;
fffd0934
JB		 4763 if (!key.p.key || !key.p.key_len)
4764 return -EINVAL;
4765 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4766 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4767 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4768 key.p.key_len != WLAN_KEY_LEN_WEP104))
4769 return -EINVAL;
4770 if (key.idx > 4)
4771 return -EINVAL;
4772 } else {
4773 key.p.key_len = 0;
4774 key.p.key = NULL;
4775 }
4776
afea0b7a
JB		 4777 if (key.idx >= 0) {
4778 int i;
4779 bool ok = false;
4780 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4781 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4782 ok = true;
4783 break;
4784 }
4785 }
4c476991
JB		 4786 if (!ok)
4787 return -EINVAL;
afea0b7a
JB		 4788 }
4789
4c476991
JB		 4790 if (!rdev->ops->auth)
4791 return -EOPNOTSUPP;
636a5d36 4792
074ac8df 4793 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4794 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4795 return -EOPNOTSUPP;
eec60b03 4796
19957bb3 4797 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4798 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4799 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4800 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4801 return -EINVAL;
636a5d36 4802
19957bb3
JB		 4803 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4804 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4805
4806 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4807 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4808 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4809 }
4810
19957bb3 4811 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4812 if (!nl80211_valid_auth_type(auth_type))
4813 return -EINVAL;
636a5d36 4814
d5cdfacb
JM		 4815 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4816
95de817b
JB		 4817 /*
4818 * Since we no longer track auth state, ignore
4819 * requests to only change local state.
4820 */
4821 if (local_state_change)
4822 return 0;
4823
4c476991
JB		 4824 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4825 ssid, ssid_len, ie, ie_len,
95de817b 4826 key.p.key, key.p.key_len, key.idx);
636a5d36
JM		 4827}
4828
c0692b8f
JB		 4829static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4830 struct genl_info *info,
3dc27d25
JB		 4831 struct cfg80211_crypto_settings *settings,
4832 int cipher_limit)
b23aa676 4833{
c0b2bbd8
JB		 4834 memset(settings, 0, sizeof(*settings));
4835
b23aa676
SO		 4836 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4837
c0692b8f
JB		 4838 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4839 u16 proto;
4840 proto = nla_get_u16(
4841 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4842 settings->control_port_ethertype = cpu_to_be16(proto);
4843 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4844 proto != ETH_P_PAE)
4845 return -EINVAL;
4846 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4847 settings->control_port_no_encrypt = true;
4848 } else
4849 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4850
b23aa676
SO		 4851 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4852 void *data;
4853 int len, i;
4854
4855 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4856 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4857 settings->n_ciphers_pairwise = len / sizeof(u32);
4858
4859 if (len % sizeof(u32))
4860 return -EINVAL;
4861
3dc27d25 4862 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4863 return -EINVAL;
4864
4865 memcpy(settings->ciphers_pairwise, data, len);
4866
4867 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 4868 if (!cfg80211_supported_cipher_suite(
4869 &rdev->wiphy,
b23aa676
SO		 4870 settings->ciphers_pairwise[i]))
4871 return -EINVAL;
4872 }
4873
4874 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4875 settings->cipher_group =
4876 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 4877 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4878 settings->cipher_group))
b23aa676
SO		 4879 return -EINVAL;
4880 }
4881
4882 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4883 settings->wpa_versions =
4884 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4885 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4886 return -EINVAL;
4887 }
4888
4889 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4890 void *data;
6d30240e 4891 int len;
b23aa676
SO		 4892
4893 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4894 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4895 settings->n_akm_suites = len / sizeof(u32);
4896
4897 if (len % sizeof(u32))
4898 return -EINVAL;
4899
1b9ca027
JM		 4900 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4901 return -EINVAL;
4902
b23aa676 4903 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 4904 }
4905
4906 return 0;
4907}
4908
636a5d36
JM		 4909static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4910{
4c476991
JB		 4911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4912 struct net_device *dev = info->user_ptr[1];
19957bb3 4913 struct cfg80211_crypto_settings crypto;
f444de05 4914 struct ieee80211_channel *chan;
3e5d7649 4915 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4916 int err, ssid_len, ie_len = 0;
4917 bool use_mfp = false;
7e7c8926
BG		 4918 u32 flags = 0;
4919 struct ieee80211_ht_cap *ht_capa = NULL;
4920 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 4921
f4a11bb0
JB		 4922 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4923 return -EINVAL;
4924
4925 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4926 !info->attrs[NL80211_ATTR_SSID] ||
4927 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4928 return -EINVAL;
4929
4c476991
JB		 4930 if (!rdev->ops->assoc)
4931 return -EOPNOTSUPP;
636a5d36 4932
074ac8df 4933 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4934 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4935 return -EOPNOTSUPP;
eec60b03 4936
19957bb3 4937 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4938
19957bb3
JB		 4939 chan = ieee80211_get_channel(&rdev->wiphy,
4940 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4941 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4942 return -EINVAL;
636a5d36 4943
19957bb3
JB		 4944 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4945 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4946
4947 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4948 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4949 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4950 }
4951
dc6382ce 4952 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 4953 enum nl80211_mfp mfp =
dc6382ce 4954 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 4955 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 4956 use_mfp = true;
4c476991
JB		 4957 else if (mfp != NL80211_MFP_NO)
4958 return -EINVAL;
dc6382ce
JM		 4959 }
4960
3e5d7649
JB		 4961 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4962 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4963
7e7c8926
BG		 4964 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4965 flags |= ASSOC_REQ_DISABLE_HT;
4966
4967 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4968 ht_capa_mask =
4969 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4970
4971 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4972 if (!ht_capa_mask)
4973 return -EINVAL;
4974 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4975 }
4976
c0692b8f 4977 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 4978 if (!err)
3e5d7649
JB		 4979 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4980 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 4981 &crypto, flags, ht_capa,
4982 ht_capa_mask);
636a5d36 4983
636a5d36
JM		 4984 return err;
4985}
4986
4987static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4988{
4c476991
JB		 4989 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4990 struct net_device *dev = info->user_ptr[1];
19957bb3 4991 const u8 *ie = NULL, *bssid;
4c476991 4992 int ie_len = 0;
19957bb3 4993 u16 reason_code;
d5cdfacb 4994 bool local_state_change;
636a5d36 4995
f4a11bb0
JB		 4996 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4997 return -EINVAL;
4998
4999 if (!info->attrs[NL80211_ATTR_MAC])
5000 return -EINVAL;
5001
5002 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5003 return -EINVAL;
5004
4c476991
JB		 5005 if (!rdev->ops->deauth)
5006 return -EOPNOTSUPP;
636a5d36 5007
074ac8df 5008 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5009 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5010 return -EOPNOTSUPP;
eec60b03 5011
19957bb3 5012 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5013
19957bb3
JB		 5014 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5015 if (reason_code == 0) {
f4a11bb0 5016 /* Reason Code 0 is reserved */
4c476991 5017 return -EINVAL;
255e737e 5018 }
636a5d36
JM		 5019
5020 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5021 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5022 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5023 }
5024
d5cdfacb
JM		 5025 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5026
4c476991
JB		 5027 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5028 local_state_change);
636a5d36
JM		 5029}
5030
5031static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5032{
4c476991
JB		 5033 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5034 struct net_device *dev = info->user_ptr[1];
19957bb3 5035 const u8 *ie = NULL, *bssid;
4c476991 5036 int ie_len = 0;
19957bb3 5037 u16 reason_code;
d5cdfacb 5038 bool local_state_change;
636a5d36 5039
f4a11bb0
JB		 5040 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5041 return -EINVAL;
5042
5043 if (!info->attrs[NL80211_ATTR_MAC])
5044 return -EINVAL;
5045
5046 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5047 return -EINVAL;
5048
4c476991
JB		 5049 if (!rdev->ops->disassoc)
5050 return -EOPNOTSUPP;
636a5d36 5051
074ac8df 5052 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5053 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5054 return -EOPNOTSUPP;
eec60b03 5055
19957bb3 5056 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5057
19957bb3
JB		 5058 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5059 if (reason_code == 0) {
f4a11bb0 5060 /* Reason Code 0 is reserved */
4c476991 5061 return -EINVAL;
255e737e 5062 }
636a5d36
JM		 5063
5064 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5065 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5066 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5067 }
5068
d5cdfacb
JM		 5069 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5070
4c476991
JB		 5071 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5072 local_state_change);
636a5d36
JM		 5073}
5074
dd5b4cc7
FF		 5075static bool
5076nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5077 int mcast_rate[IEEE80211_NUM_BANDS],
5078 int rateval)
5079{
5080 struct wiphy *wiphy = &rdev->wiphy;
5081 bool found = false;
5082 int band, i;
5083
5084 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5085 struct ieee80211_supported_band *sband;
5086
5087 sband = wiphy->bands[band];
5088 if (!sband)
5089 continue;
5090
5091 for (i = 0; i < sband->n_bitrates; i++) {
5092 if (sband->bitrates[i].bitrate == rateval) {
5093 mcast_rate[band] = i + 1;
5094 found = true;
5095 break;
5096 }
5097 }
5098 }
5099
5100 return found;
5101}
5102
04a773ad
JB		 5103static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5104{
4c476991
JB		 5105 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5106 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 5107 struct cfg80211_ibss_params ibss;
5108 struct wiphy *wiphy;
fffd0934 5109 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 5110 int err;
5111
8e30bc55
JB		 5112 memset(&ibss, 0, sizeof(ibss));
5113
04a773ad
JB		 5114 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5115 return -EINVAL;
5116
5117 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5118 !info->attrs[NL80211_ATTR_SSID] ||
5119 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5120 return -EINVAL;
5121
8e30bc55
JB		 5122 ibss.beacon_interval = 100;
5123
5124 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5125 ibss.beacon_interval =
5126 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5127 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5128 return -EINVAL;
5129 }
5130
4c476991
JB		 5131 if (!rdev->ops->join_ibss)
5132 return -EOPNOTSUPP;
04a773ad 5133
4c476991
JB		 5134 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5135 return -EOPNOTSUPP;
04a773ad 5136
79c97e97 5137 wiphy = &rdev->wiphy;
04a773ad 5138
39193498 5139 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 5140 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 5141
5142 if (!is_valid_ether_addr(ibss.bssid))
5143 return -EINVAL;
5144 }
04a773ad
JB		 5145 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5146 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5147
5148 if (info->attrs[NL80211_ATTR_IE]) {
5149 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5150 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5151 }
5152
54858ee5
AS		 5153 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5154 enum nl80211_channel_type channel_type;
5155
cd6c6598 5156 if (!nl80211_valid_channel_type(info, &channel_type))
54858ee5
AS		 5157 return -EINVAL;
5158
5159 if (channel_type != NL80211_CHAN_NO_HT &&
5160 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5161 return -EINVAL;
5162
5163 ibss.channel_type = channel_type;
5164 } else {
5165 ibss.channel_type = NL80211_CHAN_NO_HT;
5166 }
5167
5168 ibss.channel = rdev_freq_to_chan(rdev,
5169 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5170 ibss.channel_type);
04a773ad
JB		 5171 if (!ibss.channel ||
5172 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 5173 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5174 return -EINVAL;
04a773ad 5175
54858ee5
AS		 5176 /* Both channels should be able to initiate communication */
5177 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5178 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5179 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5180 ibss.channel_type))
5181 return -EINVAL;
5182
04a773ad 5183 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 5184 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5185
fbd2c8dc
TP		 5186 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5187 u8 *rates =
5188 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5189 int n_rates =
5190 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5191 struct ieee80211_supported_band *sband =
5192 wiphy->bands[ibss.channel->band];
fbd2c8dc 5193
34850ab2
JB		 5194 err = ieee80211_get_ratemask(sband, rates, n_rates,
5195 &ibss.basic_rates);
5196 if (err)
5197 return err;
fbd2c8dc 5198 }
dd5b4cc7
FF		 5199
5200 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5201 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5202 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5203 return -EINVAL;
fbd2c8dc 5204
4c476991
JB		 5205 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5206 connkeys = nl80211_parse_connkeys(rdev,
5207 info->attrs[NL80211_ATTR_KEYS]);
5208 if (IS_ERR(connkeys))
5209 return PTR_ERR(connkeys);
5210 }
04a773ad 5211
267335d6
AQ		 5212 ibss.control_port =
5213 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5214
4c476991 5215 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 5216 if (err)
5217 kfree(connkeys);
04a773ad
JB		 5218 return err;
5219}
5220
5221static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5222{
4c476991
JB		 5223 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5224 struct net_device *dev = info->user_ptr[1];
04a773ad 5225
4c476991
JB		 5226 if (!rdev->ops->leave_ibss)
5227 return -EOPNOTSUPP;
04a773ad 5228
4c476991
JB		 5229 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5230 return -EOPNOTSUPP;
04a773ad 5231
4c476991 5232 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 5233}
5234
aff89a9b
JB		 5235#ifdef CONFIG_NL80211_TESTMODE
5236static struct genl_multicast_group nl80211_testmode_mcgrp = {
5237 .name = "testmode",
5238};
5239
5240static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5241{
4c476991 5242 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 5243 int err;
5244
5245 if (!info->attrs[NL80211_ATTR_TESTDATA])
5246 return -EINVAL;
5247
aff89a9b
JB		 5248 err = -EOPNOTSUPP;
5249 if (rdev->ops->testmode_cmd) {
5250 rdev->testmode_info = info;
5251 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5252 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5253 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5254 rdev->testmode_info = NULL;
5255 }
5256
aff89a9b
JB		 5257 return err;
5258}
5259
71063f0e
WYG		 5260static int nl80211_testmode_dump(struct sk_buff *skb,
5261 struct netlink_callback *cb)
5262{
00918d33 5263 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 5264 int err;
5265 long phy_idx;
5266 void *data = NULL;
5267 int data_len = 0;
5268
5269 if (cb->args[0]) {
5270 /*
5271 * 0 is a valid index, but not valid for args[0],
5272 * so we need to offset by 1.
5273 */
5274 phy_idx = cb->args[0] - 1;
5275 } else {
5276 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5277 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5278 nl80211_policy);
5279 if (err)
5280 return err;
00918d33 5281
2bd7e35d
JB		 5282 mutex_lock(&cfg80211_mutex);
5283 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5284 nl80211_fam.attrbuf);
5285 if (IS_ERR(rdev)) {
5286 mutex_unlock(&cfg80211_mutex);
5287 return PTR_ERR(rdev);
00918d33 5288 }
2bd7e35d
JB		 5289 phy_idx = rdev->wiphy_idx;
5290 rdev = NULL;
5291 mutex_unlock(&cfg80211_mutex);
5292
71063f0e
WYG		 5293 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5294 cb->args[1] =
5295 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5296 }
5297
5298 if (cb->args[1]) {
5299 data = nla_data((void *)cb->args[1]);
5300 data_len = nla_len((void *)cb->args[1]);
5301 }
5302
5303 mutex_lock(&cfg80211_mutex);
00918d33
JB		 5304 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5305 if (!rdev) {
71063f0e
WYG		 5306 mutex_unlock(&cfg80211_mutex);
5307 return -ENOENT;
5308 }
00918d33 5309 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 5310 mutex_unlock(&cfg80211_mutex);
5311
00918d33 5312 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 5313 err = -EOPNOTSUPP;
5314 goto out_err;
5315 }
5316
5317 while (1) {
5318 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5319 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5320 NL80211_CMD_TESTMODE);
5321 struct nlattr *tmdata;
5322
9360ffd1 5323 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 5324 genlmsg_cancel(skb, hdr);
5325 break;
5326 }
5327
5328 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5329 if (!tmdata) {
5330 genlmsg_cancel(skb, hdr);
5331 break;
5332 }
00918d33
JB		 5333 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5334 data, data_len);
71063f0e
WYG		 5335 nla_nest_end(skb, tmdata);
5336
5337 if (err == -ENOBUFS || err == -ENOENT) {
5338 genlmsg_cancel(skb, hdr);
5339 break;
5340 } else if (err) {
5341 genlmsg_cancel(skb, hdr);
5342 goto out_err;
5343 }
5344
5345 genlmsg_end(skb, hdr);
5346 }
5347
5348 err = skb->len;
5349 /* see above */
5350 cb->args[0] = phy_idx + 1;
5351 out_err:
00918d33 5352 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 5353 return err;
5354}
5355
aff89a9b
JB		 5356static struct sk_buff *
5357__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5358 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5359{
5360 struct sk_buff *skb;
5361 void *hdr;
5362 struct nlattr *data;
5363
5364 skb = nlmsg_new(approxlen + 100, gfp);
5365 if (!skb)
5366 return NULL;
5367
5368 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5369 if (!hdr) {
5370 kfree_skb(skb);
5371 return NULL;
5372 }
5373
9360ffd1
DM		 5374 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5375 goto nla_put_failure;
aff89a9b
JB		 5376 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5377
5378 ((void **)skb->cb)[0] = rdev;
5379 ((void **)skb->cb)[1] = hdr;
5380 ((void **)skb->cb)[2] = data;
5381
5382 return skb;
5383
5384 nla_put_failure:
5385 kfree_skb(skb);
5386 return NULL;
5387}
5388
5389struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5390 int approxlen)
5391{
5392 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5393
5394 if (WARN_ON(!rdev->testmode_info))
5395 return NULL;
5396
5397 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5398 rdev->testmode_info->snd_pid,
5399 rdev->testmode_info->snd_seq,
5400 GFP_KERNEL);
5401}
5402EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5403
5404int cfg80211_testmode_reply(struct sk_buff *skb)
5405{
5406 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5407 void *hdr = ((void **)skb->cb)[1];
5408 struct nlattr *data = ((void **)skb->cb)[2];
5409
5410 if (WARN_ON(!rdev->testmode_info)) {
5411 kfree_skb(skb);
5412 return -EINVAL;
5413 }
5414
5415 nla_nest_end(skb, data);
5416 genlmsg_end(skb, hdr);
5417 return genlmsg_reply(skb, rdev->testmode_info);
5418}
5419EXPORT_SYMBOL(cfg80211_testmode_reply);
5420
5421struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5422 int approxlen, gfp_t gfp)
5423{
5424 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5425
5426 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5427}
5428EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5429
5430void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5431{
5432 void *hdr = ((void **)skb->cb)[1];
5433 struct nlattr *data = ((void **)skb->cb)[2];
5434
5435 nla_nest_end(skb, data);
5436 genlmsg_end(skb, hdr);
5437 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5438}
5439EXPORT_SYMBOL(cfg80211_testmode_event);
5440#endif
5441
b23aa676
SO		 5442static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5443{
4c476991
JB		 5444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5445 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5446 struct cfg80211_connect_params connect;
5447 struct wiphy *wiphy;
fffd0934 5448 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 5449 int err;
5450
5451 memset(&connect, 0, sizeof(connect));
5452
5453 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5454 return -EINVAL;
5455
5456 if (!info->attrs[NL80211_ATTR_SSID] ||
5457 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5458 return -EINVAL;
5459
5460 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5461 connect.auth_type =
5462 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5463 if (!nl80211_valid_auth_type(connect.auth_type))
5464 return -EINVAL;
5465 } else
5466 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5467
5468 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5469
c0692b8f 5470 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5471 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5472 if (err)
5473 return err;
b23aa676 5474
074ac8df 5475 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5476 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5477 return -EOPNOTSUPP;
b23aa676 5478
79c97e97 5479 wiphy = &rdev->wiphy;
b23aa676 5480
4486ea98
BS		 5481 connect.bg_scan_period = -1;
5482 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5483 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5484 connect.bg_scan_period =
5485 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5486 }
5487
b23aa676
SO		 5488 if (info->attrs[NL80211_ATTR_MAC])
5489 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5490 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5491 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5492
5493 if (info->attrs[NL80211_ATTR_IE]) {
5494 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5495 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5496 }
5497
5498 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5499 connect.channel =
5500 ieee80211_get_channel(wiphy,
5501 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5502 if (!connect.channel ||
4c476991
JB		 5503 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5504 return -EINVAL;
b23aa676
SO		 5505 }
5506
fffd0934
JB		 5507 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5508 connkeys = nl80211_parse_connkeys(rdev,
5509 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 5510 if (IS_ERR(connkeys))
5511 return PTR_ERR(connkeys);
fffd0934
JB		 5512 }
5513
7e7c8926
BG		 5514 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5515 connect.flags |= ASSOC_REQ_DISABLE_HT;
5516
5517 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5518 memcpy(&connect.ht_capa_mask,
5519 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5520 sizeof(connect.ht_capa_mask));
5521
5522 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5523 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5524 return -EINVAL;
5525 memcpy(&connect.ht_capa,
5526 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5527 sizeof(connect.ht_capa));
5528 }
5529
fffd0934 5530 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5531 if (err)
5532 kfree(connkeys);
b23aa676
SO		 5533 return err;
5534}
5535
5536static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5537{
4c476991
JB		 5538 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5539 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5540 u16 reason;
5541
5542 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5543 reason = WLAN_REASON_DEAUTH_LEAVING;
5544 else
5545 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5546
5547 if (reason == 0)
5548 return -EINVAL;
5549
074ac8df 5550 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5551 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5552 return -EOPNOTSUPP;
b23aa676 5553
4c476991 5554 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5555}
5556
463d0183
JB		 5557static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5558{
4c476991 5559 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5560 struct net *net;
5561 int err;
5562 u32 pid;
5563
5564 if (!info->attrs[NL80211_ATTR_PID])
5565 return -EINVAL;
5566
5567 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5568
463d0183 5569 net = get_net_ns_by_pid(pid);
4c476991
JB		 5570 if (IS_ERR(net))
5571 return PTR_ERR(net);
463d0183
JB		 5572
5573 err = 0;
5574
5575 /* check if anything to do */
4c476991
JB		 5576 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5577 err = cfg80211_switch_netns(rdev, net);
463d0183 5578
463d0183 5579 put_net(net);
463d0183
JB		 5580 return err;
5581}
5582
67fbb16b
SO		 5583static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5584{
4c476991 5585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5586 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5587 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5588 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5589 struct cfg80211_pmksa pmksa;
5590
5591 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5592
5593 if (!info->attrs[NL80211_ATTR_MAC])
5594 return -EINVAL;
5595
5596 if (!info->attrs[NL80211_ATTR_PMKID])
5597 return -EINVAL;
5598
67fbb16b
SO		 5599 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5600 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5601
074ac8df 5602 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5603 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5604 return -EOPNOTSUPP;
67fbb16b
SO		 5605
5606 switch (info->genlhdr->cmd) {
5607 case NL80211_CMD_SET_PMKSA:
5608 rdev_ops = rdev->ops->set_pmksa;
5609 break;
5610 case NL80211_CMD_DEL_PMKSA:
5611 rdev_ops = rdev->ops->del_pmksa;
5612 break;
5613 default:
5614 WARN_ON(1);
5615 break;
5616 }
5617
4c476991
JB		 5618 if (!rdev_ops)
5619 return -EOPNOTSUPP;
67fbb16b 5620
4c476991 5621 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5622}
5623
5624static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5625{
4c476991
JB		 5626 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5627 struct net_device *dev = info->user_ptr[1];
67fbb16b 5628
074ac8df 5629 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5630 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5631 return -EOPNOTSUPP;
67fbb16b 5632
4c476991
JB		 5633 if (!rdev->ops->flush_pmksa)
5634 return -EOPNOTSUPP;
67fbb16b 5635
4c476991 5636 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 5637}
5638
109086ce
AN		 5639static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5640{
5641 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5642 struct net_device *dev = info->user_ptr[1];
5643 u8 action_code, dialog_token;
5644 u16 status_code;
5645 u8 *peer;
5646
5647 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5648 !rdev->ops->tdls_mgmt)
5649 return -EOPNOTSUPP;
5650
5651 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5652 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5653 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5654 !info->attrs[NL80211_ATTR_IE] ||
5655 !info->attrs[NL80211_ATTR_MAC])
5656 return -EINVAL;
5657
5658 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5659 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5660 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5661 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5662
5663 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5664 dialog_token, status_code,
5665 nla_data(info->attrs[NL80211_ATTR_IE]),
5666 nla_len(info->attrs[NL80211_ATTR_IE]));
5667}
5668
5669static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5670{
5671 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5672 struct net_device *dev = info->user_ptr[1];
5673 enum nl80211_tdls_operation operation;
5674 u8 *peer;
5675
5676 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5677 !rdev->ops->tdls_oper)
5678 return -EOPNOTSUPP;
5679
5680 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5681 !info->attrs[NL80211_ATTR_MAC])
5682 return -EINVAL;
5683
5684 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5685 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5686
5687 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5688}
5689
9588bbd5
JM		 5690static int nl80211_remain_on_channel(struct sk_buff *skb,
5691 struct genl_info *info)
5692{
4c476991
JB		 5693 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5694 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 5695 struct ieee80211_channel *chan;
5696 struct sk_buff *msg;
5697 void *hdr;
5698 u64 cookie;
5699 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5700 u32 freq, duration;
5701 int err;
5702
5703 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5704 !info->attrs[NL80211_ATTR_DURATION])
5705 return -EINVAL;
5706
5707 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5708
ebf348fc
JB		 5709 if (!rdev->ops->remain_on_channel ||
5710 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5711 return -EOPNOTSUPP;
5712
9588bbd5 5713 /*
ebf348fc
JB		 5714 * We should be on that channel for at least a minimum amount of
5715 * time (10ms) but no longer than the driver supports.
9588bbd5 5716 */
ebf348fc 5717 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 5718 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 5719 return -EINVAL;
5720
cd6c6598
JB		 5721 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5722 !nl80211_valid_channel_type(info, &channel_type))
5723 return -EINVAL;
9588bbd5
JM		 5724
5725 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5726 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5727 if (chan == NULL)
5728 return -EINVAL;
9588bbd5
JM		 5729
5730 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5731 if (!msg)
5732 return -ENOMEM;
9588bbd5
JM		 5733
5734 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5735 NL80211_CMD_REMAIN_ON_CHANNEL);
5736
5737 if (IS_ERR(hdr)) {
5738 err = PTR_ERR(hdr);
5739 goto free_msg;
5740 }
5741
5742 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5743 channel_type, duration, &cookie);
5744
5745 if (err)
5746 goto free_msg;
5747
9360ffd1
DM		 5748 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5749 goto nla_put_failure;
9588bbd5
JM		 5750
5751 genlmsg_end(msg, hdr);
4c476991
JB		 5752
5753 return genlmsg_reply(msg, info);
9588bbd5
JM		 5754
5755 nla_put_failure:
5756 err = -ENOBUFS;
5757 free_msg:
5758 nlmsg_free(msg);
9588bbd5
JM		 5759 return err;
5760}
5761
5762static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5763 struct genl_info *info)
5764{
4c476991
JB		 5765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5766 struct net_device *dev = info->user_ptr[1];
9588bbd5 5767 u64 cookie;
9588bbd5
JM		 5768
5769 if (!info->attrs[NL80211_ATTR_COOKIE])
5770 return -EINVAL;
5771
4c476991
JB		 5772 if (!rdev->ops->cancel_remain_on_channel)
5773 return -EOPNOTSUPP;
9588bbd5 5774
9588bbd5
JM		 5775 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5776
4c476991 5777 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 5778}
5779
13ae75b1
JM		 5780static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5781 u8 *rates, u8 rates_len)
5782{
5783 u8 i;
5784 u32 mask = 0;
5785
5786 for (i = 0; i < rates_len; i++) {
5787 int rate = (rates[i] & 0x7f) * 5;
5788 int ridx;
5789 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5790 struct ieee80211_rate *srate =
5791 &sband->bitrates[ridx];
5792 if (rate == srate->bitrate) {
5793 mask |= 1 << ridx;
5794 break;
5795 }
5796 }
5797 if (ridx == sband->n_bitrates)
5798 return 0; /* rate not found */
5799 }
5800
5801 return mask;
5802}
5803
24db78c0
SW		 5804static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5805 u8 *rates, u8 rates_len,
5806 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5807{
5808 u8 i;
5809
5810 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5811
5812 for (i = 0; i < rates_len; i++) {
5813 int ridx, rbit;
5814
5815 ridx = rates[i] / 8;
5816 rbit = BIT(rates[i] % 8);
5817
5818 /* check validity */
910570b5 5819 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 5820 return false;
5821
5822 /* check availability */
5823 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5824 mcs[ridx] |= rbit;
5825 else
5826 return false;
5827 }
5828
5829 return true;
5830}
5831
b54452b0 5832static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 5833 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5834 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 5835 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5836 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 5837};
5838
5839static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5840 struct genl_info *info)
5841{
5842 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 5843 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 5844 struct cfg80211_bitrate_mask mask;
4c476991
JB		 5845 int rem, i;
5846 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 5847 struct nlattr *tx_rates;
5848 struct ieee80211_supported_band *sband;
5849
5850 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5851 return -EINVAL;
5852
4c476991
JB		 5853 if (!rdev->ops->set_bitrate_mask)
5854 return -EOPNOTSUPP;
13ae75b1
JM		 5855
5856 memset(&mask, 0, sizeof(mask));
5857 /* Default to all rates enabled */
5858 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5859 sband = rdev->wiphy.bands[i];
5860 mask.control[i].legacy =
5861 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 5862 if (sband)
5863 memcpy(mask.control[i].mcs,
5864 sband->ht_cap.mcs.rx_mask,
5865 sizeof(mask.control[i].mcs));
5866 else
5867 memset(mask.control[i].mcs, 0,
5868 sizeof(mask.control[i].mcs));
13ae75b1
JM		 5869 }
5870
5871 /*
5872 * The nested attribute uses enum nl80211_band as the index. This maps
5873 * directly to the enum ieee80211_band values used in cfg80211.
5874 */
24db78c0 5875 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 5876 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5877 {
5878 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 5879 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5880 return -EINVAL;
13ae75b1 5881 sband = rdev->wiphy.bands[band];
4c476991
JB		 5882 if (sband == NULL)
5883 return -EINVAL;
13ae75b1
JM		 5884 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5885 nla_len(tx_rates), nl80211_txattr_policy);
5886 if (tb[NL80211_TXRATE_LEGACY]) {
5887 mask.control[band].legacy = rateset_to_mask(
5888 sband,
5889 nla_data(tb[NL80211_TXRATE_LEGACY]),
5890 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 5891 if ((mask.control[band].legacy == 0) &&
5892 nla_len(tb[NL80211_TXRATE_LEGACY]))
5893 return -EINVAL;
24db78c0
SW		 5894 }
5895 if (tb[NL80211_TXRATE_MCS]) {
5896 if (!ht_rateset_to_mask(
5897 sband,
5898 nla_data(tb[NL80211_TXRATE_MCS]),
5899 nla_len(tb[NL80211_TXRATE_MCS]),
5900 mask.control[band].mcs))
5901 return -EINVAL;
5902 }
5903
5904 if (mask.control[band].legacy == 0) {
5905 /* don't allow empty legacy rates if HT
5906 * is not even supported. */
5907 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5908 return -EINVAL;
5909
5910 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5911 if (mask.control[band].mcs[i])
5912 break;
5913
5914 /* legacy and mcs rates may not be both empty */
5915 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 5916 return -EINVAL;
13ae75b1
JM		 5917 }
5918 }
5919
4c476991 5920 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 5921}
5922
2e161f78 5923static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5924{
4c476991
JB		 5925 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5926 struct net_device *dev = info->user_ptr[1];
2e161f78 5927 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 5928
5929 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5930 return -EINVAL;
5931
2e161f78
JB		 5932 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5933 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 5934
9d38d85d 5935 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5936 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5937 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5938 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5939 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5940 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5941 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5942 return -EOPNOTSUPP;
026331c4
JM		 5943
5944 /* not much point in registering if we can't reply */
4c476991
JB		 5945 if (!rdev->ops->mgmt_tx)
5946 return -EOPNOTSUPP;
026331c4 5947
4c476991 5948 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 5949 frame_type,
026331c4
JM		 5950 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5951 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 5952}
5953
2e161f78 5954static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5955{
4c476991
JB		 5956 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5957 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 5958 struct ieee80211_channel *chan;
5959 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 5960 bool channel_type_valid = false;
026331c4
JM		 5961 u32 freq;
5962 int err;
d64d373f 5963 void *hdr = NULL;
026331c4 5964 u64 cookie;
e247bd90 5965 struct sk_buff *msg = NULL;
f7ca38df 5966 unsigned int wait = 0;
e247bd90
JB		 5967 bool offchan, no_cck, dont_wait_for_ack;
5968
5969 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4
JM		 5970
5971 if (!info->attrs[NL80211_ATTR_FRAME] ||
5972 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5973 return -EINVAL;
5974
4c476991
JB		 5975 if (!rdev->ops->mgmt_tx)
5976 return -EOPNOTSUPP;
026331c4 5977
9d38d85d 5978 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5979 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5980 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5981 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5982 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5983 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5984 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5985 return -EOPNOTSUPP;
026331c4 5986
f7ca38df 5987 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 5988 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 5989 return -EINVAL;
5990 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 5991
5992 /*
5993 * We should wait on the channel for at least a minimum amount
5994 * of time (10ms) but no longer than the driver supports.
5995 */
5996 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5997 wait > rdev->wiphy.max_remain_on_channel_duration)
5998 return -EINVAL;
5999
f7ca38df
JB		 6000 }
6001
026331c4 6002 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
cd6c6598 6003 if (!nl80211_valid_channel_type(info, &channel_type))
4c476991 6004 return -EINVAL;
252aa631 6005 channel_type_valid = true;
026331c4
JM		 6006 }
6007
f7ca38df
JB		 6008 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6009
7c4ef712
JB		 6010 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6011 return -EINVAL;
6012
e9f935e3
RM		 6013 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6014
026331c4
JM		 6015 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6016 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 6017 if (chan == NULL)
6018 return -EINVAL;
026331c4 6019
e247bd90
JB		 6020 if (!dont_wait_for_ack) {
6021 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6022 if (!msg)
6023 return -ENOMEM;
026331c4 6024
e247bd90
JB		 6025 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6026 NL80211_CMD_FRAME);
026331c4 6027
e247bd90
JB		 6028 if (IS_ERR(hdr)) {
6029 err = PTR_ERR(hdr);
6030 goto free_msg;
6031 }
026331c4 6032 }
e247bd90 6033
f7ca38df
JB		 6034 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
6035 channel_type_valid, wait,
2e161f78
JB		 6036 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6037 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 6038 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 6039 if (err)
6040 goto free_msg;
6041
e247bd90 6042 if (msg) {
9360ffd1
DM		 6043 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6044 goto nla_put_failure;
026331c4 6045
e247bd90
JB		 6046 genlmsg_end(msg, hdr);
6047 return genlmsg_reply(msg, info);
6048 }
6049
6050 return 0;
026331c4
JM		 6051
6052 nla_put_failure:
6053 err = -ENOBUFS;
6054 free_msg:
6055 nlmsg_free(msg);
026331c4
JM		 6056 return err;
6057}
6058
f7ca38df
JB		 6059static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6060{
6061 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6062 struct net_device *dev = info->user_ptr[1];
6063 u64 cookie;
6064
6065 if (!info->attrs[NL80211_ATTR_COOKIE])
6066 return -EINVAL;
6067
6068 if (!rdev->ops->mgmt_tx_cancel_wait)
6069 return -EOPNOTSUPP;
6070
6071 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6072 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6073 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
6074 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6075 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
6076 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
6077 return -EOPNOTSUPP;
6078
6079 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6080
6081 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
6082}
6083
ffb9eb3d
KV		 6084static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6085{
4c476991 6086 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 6087 struct wireless_dev *wdev;
4c476991 6088 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6089 u8 ps_state;
6090 bool state;
6091 int err;
6092
4c476991
JB		 6093 if (!info->attrs[NL80211_ATTR_PS_STATE])
6094 return -EINVAL;
ffb9eb3d
KV		 6095
6096 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6097
4c476991
JB		 6098 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6099 return -EINVAL;
ffb9eb3d
KV		 6100
6101 wdev = dev->ieee80211_ptr;
6102
4c476991
JB		 6103 if (!rdev->ops->set_power_mgmt)
6104 return -EOPNOTSUPP;
ffb9eb3d
KV		 6105
6106 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6107
6108 if (state == wdev->ps)
4c476991 6109 return 0;
ffb9eb3d 6110
4c476991
JB		 6111 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6112 wdev->ps_timeout);
6113 if (!err)
6114 wdev->ps = state;
ffb9eb3d
KV		 6115 return err;
6116}
6117
6118static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6119{
4c476991 6120 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 6121 enum nl80211_ps_state ps_state;
6122 struct wireless_dev *wdev;
4c476991 6123 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6124 struct sk_buff *msg;
6125 void *hdr;
6126 int err;
6127
ffb9eb3d
KV		 6128 wdev = dev->ieee80211_ptr;
6129
4c476991
JB		 6130 if (!rdev->ops->set_power_mgmt)
6131 return -EOPNOTSUPP;
ffb9eb3d
KV		 6132
6133 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6134 if (!msg)
6135 return -ENOMEM;
ffb9eb3d
KV		 6136
6137 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6138 NL80211_CMD_GET_POWER_SAVE);
6139 if (!hdr) {
4c476991 6140 err = -ENOBUFS;
ffb9eb3d
KV		 6141 goto free_msg;
6142 }
6143
6144 if (wdev->ps)
6145 ps_state = NL80211_PS_ENABLED;
6146 else
6147 ps_state = NL80211_PS_DISABLED;
6148
9360ffd1
DM		 6149 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6150 goto nla_put_failure;
ffb9eb3d
KV		 6151
6152 genlmsg_end(msg, hdr);
4c476991 6153 return genlmsg_reply(msg, info);
ffb9eb3d 6154
4c476991 6155 nla_put_failure:
ffb9eb3d 6156 err = -ENOBUFS;
4c476991 6157 free_msg:
ffb9eb3d 6158 nlmsg_free(msg);
ffb9eb3d
KV		 6159 return err;
6160}
6161
d6dc1a38
JO		 6162static struct nla_policy
6163nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6164 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6165 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6166 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6167};
6168
6169static int nl80211_set_cqm_rssi(struct genl_info *info,
6170 s32 threshold, u32 hysteresis)
6171{
4c476991 6172 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 6173 struct wireless_dev *wdev;
4c476991 6174 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 6175
6176 if (threshold > 0)
6177 return -EINVAL;
6178
d6dc1a38
JO		 6179 wdev = dev->ieee80211_ptr;
6180
4c476991
JB		 6181 if (!rdev->ops->set_cqm_rssi_config)
6182 return -EOPNOTSUPP;
d6dc1a38 6183
074ac8df 6184 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6185 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6186 return -EOPNOTSUPP;
d6dc1a38 6187
4c476991
JB		 6188 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6189 threshold, hysteresis);
d6dc1a38
JO		 6190}
6191
6192static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6193{
6194 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6195 struct nlattr *cqm;
6196 int err;
6197
6198 cqm = info->attrs[NL80211_ATTR_CQM];
6199 if (!cqm) {
6200 err = -EINVAL;
6201 goto out;
6202 }
6203
6204 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6205 nl80211_attr_cqm_policy);
6206 if (err)
6207 goto out;
6208
6209 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6210 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6211 s32 threshold;
6212 u32 hysteresis;
6213 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6214 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6215 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6216 } else
6217 err = -EINVAL;
6218
6219out:
6220 return err;
6221}
6222
29cbe68c
JB		 6223static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6224{
6225 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6226 struct net_device *dev = info->user_ptr[1];
6227 struct mesh_config cfg;
c80d545d 6228 struct mesh_setup setup;
29cbe68c
JB		 6229 int err;
6230
6231 /* start with default */
6232 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 6233 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 6234
24bdd9f4 6235 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 6236 /* and parse parameters if given */
24bdd9f4 6237 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 6238 if (err)
6239 return err;
6240 }
6241
6242 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6243 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6244 return -EINVAL;
6245
c80d545d
JC		 6246 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6247 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6248
4bb62344
CYY		 6249 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6250 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6251 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6252 return -EINVAL;
6253
c80d545d
JC		 6254 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6255 /* parse additional setup parameters if given */
6256 err = nl80211_parse_mesh_setup(info, &setup);
6257 if (err)
6258 return err;
6259 }
6260
cc1d2806
JB		 6261 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6262 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6263
6264 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6265 !nl80211_valid_channel_type(info, &channel_type))
6266 return -EINVAL;
6267
6268 setup.channel = rdev_freq_to_chan(rdev,
6269 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6270 channel_type);
6271 if (!setup.channel)
6272 return -EINVAL;
6273 setup.channel_type = channel_type;
6274 } else {
6275 /* cfg80211_join_mesh() will sort it out */
6276 setup.channel = NULL;
6277 }
6278
c80d545d 6279 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 6280}
6281
6282static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6283{
6284 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6285 struct net_device *dev = info->user_ptr[1];
6286
6287 return cfg80211_leave_mesh(rdev, dev);
6288}
6289
dfb89c56 6290#ifdef CONFIG_PM
ff1b6e69
JB		 6291static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6292{
6293 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6294 struct sk_buff *msg;
6295 void *hdr;
6296
6297 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6298 return -EOPNOTSUPP;
6299
6300 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6301 if (!msg)
6302 return -ENOMEM;
6303
6304 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6305 NL80211_CMD_GET_WOWLAN);
6306 if (!hdr)
6307 goto nla_put_failure;
6308
6309 if (rdev->wowlan) {
6310 struct nlattr *nl_wowlan;
6311
6312 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6313 if (!nl_wowlan)
6314 goto nla_put_failure;
6315
9360ffd1
DM		 6316 if ((rdev->wowlan->any &&
6317 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6318 (rdev->wowlan->disconnect &&
6319 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6320 (rdev->wowlan->magic_pkt &&
6321 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6322 (rdev->wowlan->gtk_rekey_failure &&
6323 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6324 (rdev->wowlan->eap_identity_req &&
6325 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6326 (rdev->wowlan->four_way_handshake &&
6327 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6328 (rdev->wowlan->rfkill_release &&
6329 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6330 goto nla_put_failure;
ff1b6e69
JB		 6331 if (rdev->wowlan->n_patterns) {
6332 struct nlattr *nl_pats, *nl_pat;
6333 int i, pat_len;
6334
6335 nl_pats = nla_nest_start(msg,
6336 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6337 if (!nl_pats)
6338 goto nla_put_failure;
6339
6340 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6341 nl_pat = nla_nest_start(msg, i + 1);
6342 if (!nl_pat)
6343 goto nla_put_failure;
6344 pat_len = rdev->wowlan->patterns[i].pattern_len;
9360ffd1
DM		 6345 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6346 DIV_ROUND_UP(pat_len, 8),
6347 rdev->wowlan->patterns[i].mask) ||
6348 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6349 pat_len,
6350 rdev->wowlan->patterns[i].pattern))
6351 goto nla_put_failure;
ff1b6e69
JB		 6352 nla_nest_end(msg, nl_pat);
6353 }
6354 nla_nest_end(msg, nl_pats);
6355 }
6356
6357 nla_nest_end(msg, nl_wowlan);
6358 }
6359
6360 genlmsg_end(msg, hdr);
6361 return genlmsg_reply(msg, info);
6362
6363nla_put_failure:
6364 nlmsg_free(msg);
6365 return -ENOBUFS;
6366}
6367
6368static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6369{
6370 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6371 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6372 struct cfg80211_wowlan no_triggers = {};
6373 struct cfg80211_wowlan new_triggers = {};
6374 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6375 int err, i;
6d52563f 6376 bool prev_enabled = rdev->wowlan;
ff1b6e69
JB		 6377
6378 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6379 return -EOPNOTSUPP;
6380
6381 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6382 goto no_triggers;
6383
6384 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6385 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6386 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6387 nl80211_wowlan_policy);
6388 if (err)
6389 return err;
6390
6391 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6392 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6393 return -EINVAL;
6394 new_triggers.any = true;
6395 }
6396
6397 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6398 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6399 return -EINVAL;
6400 new_triggers.disconnect = true;
6401 }
6402
6403 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6404 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6405 return -EINVAL;
6406 new_triggers.magic_pkt = true;
6407 }
6408
77dbbb13
JB		 6409 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6410 return -EINVAL;
6411
6412 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6413 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6414 return -EINVAL;
6415 new_triggers.gtk_rekey_failure = true;
6416 }
6417
6418 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6419 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6420 return -EINVAL;
6421 new_triggers.eap_identity_req = true;
6422 }
6423
6424 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6425 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6426 return -EINVAL;
6427 new_triggers.four_way_handshake = true;
6428 }
6429
6430 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6431 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6432 return -EINVAL;
6433 new_triggers.rfkill_release = true;
6434 }
6435
ff1b6e69
JB		 6436 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6437 struct nlattr *pat;
6438 int n_patterns = 0;
6439 int rem, pat_len, mask_len;
6440 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6441
6442 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6443 rem)
6444 n_patterns++;
6445 if (n_patterns > wowlan->n_patterns)
6446 return -EINVAL;
6447
6448 new_triggers.patterns = kcalloc(n_patterns,
6449 sizeof(new_triggers.patterns[0]),
6450 GFP_KERNEL);
6451 if (!new_triggers.patterns)
6452 return -ENOMEM;
6453
6454 new_triggers.n_patterns = n_patterns;
6455 i = 0;
6456
6457 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6458 rem) {
6459 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6460 nla_data(pat), nla_len(pat), NULL);
6461 err = -EINVAL;
6462 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6463 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6464 goto error;
6465 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6466 mask_len = DIV_ROUND_UP(pat_len, 8);
6467 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6468 mask_len)
6469 goto error;
6470 if (pat_len > wowlan->pattern_max_len ||
6471 pat_len < wowlan->pattern_min_len)
6472 goto error;
6473
6474 new_triggers.patterns[i].mask =
6475 kmalloc(mask_len + pat_len, GFP_KERNEL);
6476 if (!new_triggers.patterns[i].mask) {
6477 err = -ENOMEM;
6478 goto error;
6479 }
6480 new_triggers.patterns[i].pattern =
6481 new_triggers.patterns[i].mask + mask_len;
6482 memcpy(new_triggers.patterns[i].mask,
6483 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6484 mask_len);
6485 new_triggers.patterns[i].pattern_len = pat_len;
6486 memcpy(new_triggers.patterns[i].pattern,
6487 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6488 pat_len);
6489 i++;
6490 }
6491 }
6492
6493 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6494 struct cfg80211_wowlan *ntrig;
6495 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6496 GFP_KERNEL);
6497 if (!ntrig) {
6498 err = -ENOMEM;
6499 goto error;
6500 }
6501 cfg80211_rdev_free_wowlan(rdev);
6502 rdev->wowlan = ntrig;
6503 } else {
6504 no_triggers:
6505 cfg80211_rdev_free_wowlan(rdev);
6506 rdev->wowlan = NULL;
6507 }
6508
6d52563f
JB		 6509 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6510 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6511
ff1b6e69
JB		 6512 return 0;
6513 error:
6514 for (i = 0; i < new_triggers.n_patterns; i++)
6515 kfree(new_triggers.patterns[i].mask);
6516 kfree(new_triggers.patterns);
6517 return err;
6518}
dfb89c56 6519#endif
ff1b6e69 6520
e5497d76
JB		 6521static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6522{
6523 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6524 struct net_device *dev = info->user_ptr[1];
6525 struct wireless_dev *wdev = dev->ieee80211_ptr;
6526 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6527 struct cfg80211_gtk_rekey_data rekey_data;
6528 int err;
6529
6530 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6531 return -EINVAL;
6532
6533 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6534 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6535 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6536 nl80211_rekey_policy);
6537 if (err)
6538 return err;
6539
6540 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6541 return -ERANGE;
6542 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6543 return -ERANGE;
6544 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6545 return -ERANGE;
6546
6547 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6548 NL80211_KEK_LEN);
6549 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6550 NL80211_KCK_LEN);
6551 memcpy(rekey_data.replay_ctr,
6552 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6553 NL80211_REPLAY_CTR_LEN);
6554
6555 wdev_lock(wdev);
6556 if (!wdev->current_bss) {
6557 err = -ENOTCONN;
6558 goto out;
6559 }
6560
6561 if (!rdev->ops->set_rekey_data) {
6562 err = -EOPNOTSUPP;
6563 goto out;
6564 }
6565
6566 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6567 out:
6568 wdev_unlock(wdev);
6569 return err;
6570}
6571
28946da7
JB		 6572static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6573 struct genl_info *info)
6574{
6575 struct net_device *dev = info->user_ptr[1];
6576 struct wireless_dev *wdev = dev->ieee80211_ptr;
6577
6578 if (wdev->iftype != NL80211_IFTYPE_AP &&
6579 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6580 return -EINVAL;
6581
6582 if (wdev->ap_unexpected_nlpid)
6583 return -EBUSY;
6584
6585 wdev->ap_unexpected_nlpid = info->snd_pid;
6586 return 0;
6587}
6588
7f6cf311
JB		 6589static int nl80211_probe_client(struct sk_buff *skb,
6590 struct genl_info *info)
6591{
6592 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6593 struct net_device *dev = info->user_ptr[1];
6594 struct wireless_dev *wdev = dev->ieee80211_ptr;
6595 struct sk_buff *msg;
6596 void *hdr;
6597 const u8 *addr;
6598 u64 cookie;
6599 int err;
6600
6601 if (wdev->iftype != NL80211_IFTYPE_AP &&
6602 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6603 return -EOPNOTSUPP;
6604
6605 if (!info->attrs[NL80211_ATTR_MAC])
6606 return -EINVAL;
6607
6608 if (!rdev->ops->probe_client)
6609 return -EOPNOTSUPP;
6610
6611 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6612 if (!msg)
6613 return -ENOMEM;
6614
6615 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6616 NL80211_CMD_PROBE_CLIENT);
6617
6618 if (IS_ERR(hdr)) {
6619 err = PTR_ERR(hdr);
6620 goto free_msg;
6621 }
6622
6623 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6624
6625 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6626 if (err)
6627 goto free_msg;
6628
9360ffd1
DM		 6629 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6630 goto nla_put_failure;
7f6cf311
JB		 6631
6632 genlmsg_end(msg, hdr);
6633
6634 return genlmsg_reply(msg, info);
6635
6636 nla_put_failure:
6637 err = -ENOBUFS;
6638 free_msg:
6639 nlmsg_free(msg);
6640 return err;
6641}
6642
5e760230
JB		 6643static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6644{
6645 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6646
6647 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6648 return -EOPNOTSUPP;
6649
6650 if (rdev->ap_beacons_nlpid)
6651 return -EBUSY;
6652
6653 rdev->ap_beacons_nlpid = info->snd_pid;
6654
6655 return 0;
6656}
6657
4c476991
JB		 6658#define NL80211_FLAG_NEED_WIPHY 0x01
6659#define NL80211_FLAG_NEED_NETDEV 0x02
6660#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 6661#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6662#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6663 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 6664
6665static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6666 struct genl_info *info)
6667{
6668 struct cfg80211_registered_device *rdev;
6669 struct net_device *dev;
6670 int err;
6671 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6672
6673 if (rtnl)
6674 rtnl_lock();
6675
6676 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 6677 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 6678 if (IS_ERR(rdev)) {
6679 if (rtnl)
6680 rtnl_unlock();
6681 return PTR_ERR(rdev);
6682 }
6683 info->user_ptr[0] = rdev;
6684 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
00918d33
JB		 6685 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6686 &rdev, &dev);
4c476991
JB		 6687 if (err) {
6688 if (rtnl)
6689 rtnl_unlock();
6690 return err;
6691 }
41265714
JB		 6692 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6693 !netif_running(dev)) {
d537f5fd
JB		 6694 cfg80211_unlock_rdev(rdev);
6695 dev_put(dev);
41265714
JB		 6696 if (rtnl)
6697 rtnl_unlock();
6698 return -ENETDOWN;
6699 }
4c476991
JB		 6700 info->user_ptr[0] = rdev;
6701 info->user_ptr[1] = dev;
6702 }
6703
6704 return 0;
6705}
6706
6707static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6708 struct genl_info *info)
6709{
6710 if (info->user_ptr[0])
6711 cfg80211_unlock_rdev(info->user_ptr[0]);
6712 if (info->user_ptr[1])
6713 dev_put(info->user_ptr[1]);
6714 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6715 rtnl_unlock();
6716}
6717
55682965
JB		 6718static struct genl_ops nl80211_ops[] = {
6719 {
6720 .cmd = NL80211_CMD_GET_WIPHY,
6721 .doit = nl80211_get_wiphy,
6722 .dumpit = nl80211_dump_wiphy,
6723 .policy = nl80211_policy,
6724 /* can be retrieved by unprivileged users */
4c476991 6725 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 6726 },
6727 {
6728 .cmd = NL80211_CMD_SET_WIPHY,
6729 .doit = nl80211_set_wiphy,
6730 .policy = nl80211_policy,
6731 .flags = GENL_ADMIN_PERM,
4c476991 6732 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 6733 },
6734 {
6735 .cmd = NL80211_CMD_GET_INTERFACE,
6736 .doit = nl80211_get_interface,
6737 .dumpit = nl80211_dump_interface,
6738 .policy = nl80211_policy,
6739 /* can be retrieved by unprivileged users */
4c476991 6740 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 6741 },
6742 {
6743 .cmd = NL80211_CMD_SET_INTERFACE,
6744 .doit = nl80211_set_interface,
6745 .policy = nl80211_policy,
6746 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6747 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6748 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6749 },
6750 {
6751 .cmd = NL80211_CMD_NEW_INTERFACE,
6752 .doit = nl80211_new_interface,
6753 .policy = nl80211_policy,
6754 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6755 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6756 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6757 },
6758 {
6759 .cmd = NL80211_CMD_DEL_INTERFACE,
6760 .doit = nl80211_del_interface,
6761 .policy = nl80211_policy,
41ade00f 6762 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6763 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6764 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6765 },
6766 {
6767 .cmd = NL80211_CMD_GET_KEY,
6768 .doit = nl80211_get_key,
6769 .policy = nl80211_policy,
6770 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6771 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6772 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6773 },
6774 {
6775 .cmd = NL80211_CMD_SET_KEY,
6776 .doit = nl80211_set_key,
6777 .policy = nl80211_policy,
6778 .flags = GENL_ADMIN_PERM,
41265714 6779 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6780 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6781 },
6782 {
6783 .cmd = NL80211_CMD_NEW_KEY,
6784 .doit = nl80211_new_key,
6785 .policy = nl80211_policy,
6786 .flags = GENL_ADMIN_PERM,
41265714 6787 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6788 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6789 },
6790 {
6791 .cmd = NL80211_CMD_DEL_KEY,
6792 .doit = nl80211_del_key,
6793 .policy = nl80211_policy,
55682965 6794 .flags = GENL_ADMIN_PERM,
41265714 6795 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6796 NL80211_FLAG_NEED_RTNL,
55682965 6797 },
ed1b6cc7
JB		 6798 {
6799 .cmd = NL80211_CMD_SET_BEACON,
6800 .policy = nl80211_policy,
6801 .flags = GENL_ADMIN_PERM,
8860020e 6802 .doit = nl80211_set_beacon,
2b5f8b0b 6803 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6804 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6805 },
6806 {
8860020e 6807 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 6808 .policy = nl80211_policy,
6809 .flags = GENL_ADMIN_PERM,
8860020e 6810 .doit = nl80211_start_ap,
2b5f8b0b 6811 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6812 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6813 },
6814 {
8860020e 6815 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 6816 .policy = nl80211_policy,
6817 .flags = GENL_ADMIN_PERM,
8860020e 6818 .doit = nl80211_stop_ap,
2b5f8b0b 6819 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6820 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 6821 },
5727ef1b
JB		 6822 {
6823 .cmd = NL80211_CMD_GET_STATION,
6824 .doit = nl80211_get_station,
2ec600d6 6825 .dumpit = nl80211_dump_station,
5727ef1b 6826 .policy = nl80211_policy,
4c476991
JB		 6827 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6828 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6829 },
6830 {
6831 .cmd = NL80211_CMD_SET_STATION,
6832 .doit = nl80211_set_station,
6833 .policy = nl80211_policy,
6834 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6835 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6836 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6837 },
6838 {
6839 .cmd = NL80211_CMD_NEW_STATION,
6840 .doit = nl80211_new_station,
6841 .policy = nl80211_policy,
6842 .flags = GENL_ADMIN_PERM,
41265714 6843 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6844 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6845 },
6846 {
6847 .cmd = NL80211_CMD_DEL_STATION,
6848 .doit = nl80211_del_station,
6849 .policy = nl80211_policy,
2ec600d6 6850 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6851 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6852 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6853 },
6854 {
6855 .cmd = NL80211_CMD_GET_MPATH,
6856 .doit = nl80211_get_mpath,
6857 .dumpit = nl80211_dump_mpath,
6858 .policy = nl80211_policy,
6859 .flags = GENL_ADMIN_PERM,
41265714 6860 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6861 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6862 },
6863 {
6864 .cmd = NL80211_CMD_SET_MPATH,
6865 .doit = nl80211_set_mpath,
6866 .policy = nl80211_policy,
6867 .flags = GENL_ADMIN_PERM,
41265714 6868 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6869 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6870 },
6871 {
6872 .cmd = NL80211_CMD_NEW_MPATH,
6873 .doit = nl80211_new_mpath,
6874 .policy = nl80211_policy,
6875 .flags = GENL_ADMIN_PERM,
41265714 6876 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6877 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6878 },
6879 {
6880 .cmd = NL80211_CMD_DEL_MPATH,
6881 .doit = nl80211_del_mpath,
6882 .policy = nl80211_policy,
9f1ba906 6883 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6884 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6885 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 6886 },
6887 {
6888 .cmd = NL80211_CMD_SET_BSS,
6889 .doit = nl80211_set_bss,
6890 .policy = nl80211_policy,
b2e1b302 6891 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6892 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6893 NL80211_FLAG_NEED_RTNL,
b2e1b302 6894 },
f130347c
LR		 6895 {
6896 .cmd = NL80211_CMD_GET_REG,
6897 .doit = nl80211_get_reg,
6898 .policy = nl80211_policy,
6899 /* can be retrieved by unprivileged users */
6900 },
b2e1b302
LR		 6901 {
6902 .cmd = NL80211_CMD_SET_REG,
6903 .doit = nl80211_set_reg,
6904 .policy = nl80211_policy,
6905 .flags = GENL_ADMIN_PERM,
6906 },
6907 {
6908 .cmd = NL80211_CMD_REQ_SET_REG,
6909 .doit = nl80211_req_set_reg,
6910 .policy = nl80211_policy,
93da9cc1 6911 .flags = GENL_ADMIN_PERM,
6912 },
6913 {
24bdd9f4
JC		 6914 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6915 .doit = nl80211_get_mesh_config,
93da9cc1 6916 .policy = nl80211_policy,
6917 /* can be retrieved by unprivileged users */
2b5f8b0b 6918 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6919 NL80211_FLAG_NEED_RTNL,
93da9cc1 6920 },
6921 {
24bdd9f4
JC		 6922 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6923 .doit = nl80211_update_mesh_config,
93da9cc1 6924 .policy = nl80211_policy,
9aed3cc1 6925 .flags = GENL_ADMIN_PERM,
29cbe68c 6926 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6927 NL80211_FLAG_NEED_RTNL,
9aed3cc1 6928 },
2a519311
JB		 6929 {
6930 .cmd = NL80211_CMD_TRIGGER_SCAN,
6931 .doit = nl80211_trigger_scan,
6932 .policy = nl80211_policy,
6933 .flags = GENL_ADMIN_PERM,
41265714 6934 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6935 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 6936 },
6937 {
6938 .cmd = NL80211_CMD_GET_SCAN,
6939 .policy = nl80211_policy,
6940 .dumpit = nl80211_dump_scan,
6941 },
807f8a8c
LC		 6942 {
6943 .cmd = NL80211_CMD_START_SCHED_SCAN,
6944 .doit = nl80211_start_sched_scan,
6945 .policy = nl80211_policy,
6946 .flags = GENL_ADMIN_PERM,
6947 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6948 NL80211_FLAG_NEED_RTNL,
6949 },
6950 {
6951 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6952 .doit = nl80211_stop_sched_scan,
6953 .policy = nl80211_policy,
6954 .flags = GENL_ADMIN_PERM,
6955 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6956 NL80211_FLAG_NEED_RTNL,
6957 },
636a5d36
JM		 6958 {
6959 .cmd = NL80211_CMD_AUTHENTICATE,
6960 .doit = nl80211_authenticate,
6961 .policy = nl80211_policy,
6962 .flags = GENL_ADMIN_PERM,
41265714 6963 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6964 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6965 },
6966 {
6967 .cmd = NL80211_CMD_ASSOCIATE,
6968 .doit = nl80211_associate,
6969 .policy = nl80211_policy,
6970 .flags = GENL_ADMIN_PERM,
41265714 6971 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6972 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6973 },
6974 {
6975 .cmd = NL80211_CMD_DEAUTHENTICATE,
6976 .doit = nl80211_deauthenticate,
6977 .policy = nl80211_policy,
6978 .flags = GENL_ADMIN_PERM,
41265714 6979 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6980 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6981 },
6982 {
6983 .cmd = NL80211_CMD_DISASSOCIATE,
6984 .doit = nl80211_disassociate,
6985 .policy = nl80211_policy,
6986 .flags = GENL_ADMIN_PERM,
41265714 6987 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6988 NL80211_FLAG_NEED_RTNL,
636a5d36 6989 },
04a773ad
JB		 6990 {
6991 .cmd = NL80211_CMD_JOIN_IBSS,
6992 .doit = nl80211_join_ibss,
6993 .policy = nl80211_policy,
6994 .flags = GENL_ADMIN_PERM,
41265714 6995 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6996 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 6997 },
6998 {
6999 .cmd = NL80211_CMD_LEAVE_IBSS,
7000 .doit = nl80211_leave_ibss,
7001 .policy = nl80211_policy,
7002 .flags = GENL_ADMIN_PERM,
41265714 7003 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7004 NL80211_FLAG_NEED_RTNL,
04a773ad 7005 },
aff89a9b
JB		 7006#ifdef CONFIG_NL80211_TESTMODE
7007 {
7008 .cmd = NL80211_CMD_TESTMODE,
7009 .doit = nl80211_testmode_do,
71063f0e 7010 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 7011 .policy = nl80211_policy,
7012 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7013 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7014 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 7015 },
7016#endif
b23aa676
SO		 7017 {
7018 .cmd = NL80211_CMD_CONNECT,
7019 .doit = nl80211_connect,
7020 .policy = nl80211_policy,
7021 .flags = GENL_ADMIN_PERM,
41265714 7022 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7023 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 7024 },
7025 {
7026 .cmd = NL80211_CMD_DISCONNECT,
7027 .doit = nl80211_disconnect,
7028 .policy = nl80211_policy,
7029 .flags = GENL_ADMIN_PERM,
41265714 7030 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7031 NL80211_FLAG_NEED_RTNL,
b23aa676 7032 },
463d0183
JB		 7033 {
7034 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7035 .doit = nl80211_wiphy_netns,
7036 .policy = nl80211_policy,
7037 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7038 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7039 NL80211_FLAG_NEED_RTNL,
463d0183 7040 },
61fa713c
HS		 7041 {
7042 .cmd = NL80211_CMD_GET_SURVEY,
7043 .policy = nl80211_policy,
7044 .dumpit = nl80211_dump_survey,
7045 },
67fbb16b
SO		 7046 {
7047 .cmd = NL80211_CMD_SET_PMKSA,
7048 .doit = nl80211_setdel_pmksa,
7049 .policy = nl80211_policy,
7050 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7051 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7052 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7053 },
7054 {
7055 .cmd = NL80211_CMD_DEL_PMKSA,
7056 .doit = nl80211_setdel_pmksa,
7057 .policy = nl80211_policy,
7058 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7059 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7060 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7061 },
7062 {
7063 .cmd = NL80211_CMD_FLUSH_PMKSA,
7064 .doit = nl80211_flush_pmksa,
7065 .policy = nl80211_policy,
7066 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7067 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7068 NL80211_FLAG_NEED_RTNL,
67fbb16b 7069 },
9588bbd5
JM		 7070 {
7071 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7072 .doit = nl80211_remain_on_channel,
7073 .policy = nl80211_policy,
7074 .flags = GENL_ADMIN_PERM,
41265714 7075 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7076 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 7077 },
7078 {
7079 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7080 .doit = nl80211_cancel_remain_on_channel,
7081 .policy = nl80211_policy,
7082 .flags = GENL_ADMIN_PERM,
41265714 7083 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7084 NL80211_FLAG_NEED_RTNL,
9588bbd5 7085 },
13ae75b1
JM		 7086 {
7087 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7088 .doit = nl80211_set_tx_bitrate_mask,
7089 .policy = nl80211_policy,
7090 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7091 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7092 NL80211_FLAG_NEED_RTNL,
13ae75b1 7093 },
026331c4 7094 {
2e161f78
JB		 7095 .cmd = NL80211_CMD_REGISTER_FRAME,
7096 .doit = nl80211_register_mgmt,
026331c4
JM		 7097 .policy = nl80211_policy,
7098 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7099 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7100 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 7101 },
7102 {
2e161f78
JB		 7103 .cmd = NL80211_CMD_FRAME,
7104 .doit = nl80211_tx_mgmt,
026331c4 7105 .policy = nl80211_policy,
f7ca38df
JB		 7106 .flags = GENL_ADMIN_PERM,
7107 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7108 NL80211_FLAG_NEED_RTNL,
7109 },
7110 {
7111 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7112 .doit = nl80211_tx_mgmt_cancel_wait,
7113 .policy = nl80211_policy,
026331c4 7114 .flags = GENL_ADMIN_PERM,
41265714 7115 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7116 NL80211_FLAG_NEED_RTNL,
026331c4 7117 },
ffb9eb3d
KV		 7118 {
7119 .cmd = NL80211_CMD_SET_POWER_SAVE,
7120 .doit = nl80211_set_power_save,
7121 .policy = nl80211_policy,
7122 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7123 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7124 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 7125 },
7126 {
7127 .cmd = NL80211_CMD_GET_POWER_SAVE,
7128 .doit = nl80211_get_power_save,
7129 .policy = nl80211_policy,
7130 /* can be retrieved by unprivileged users */
4c476991
JB		 7131 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7132 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 7133 },
d6dc1a38
JO		 7134 {
7135 .cmd = NL80211_CMD_SET_CQM,
7136 .doit = nl80211_set_cqm,
7137 .policy = nl80211_policy,
7138 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7139 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7140 NL80211_FLAG_NEED_RTNL,
d6dc1a38 7141 },
f444de05
JB		 7142 {
7143 .cmd = NL80211_CMD_SET_CHANNEL,
7144 .doit = nl80211_set_channel,
7145 .policy = nl80211_policy,
7146 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7147 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7148 NL80211_FLAG_NEED_RTNL,
f444de05 7149 },
e8347eba
BJ		 7150 {
7151 .cmd = NL80211_CMD_SET_WDS_PEER,
7152 .doit = nl80211_set_wds_peer,
7153 .policy = nl80211_policy,
7154 .flags = GENL_ADMIN_PERM,
43b19952
JB		 7155 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7156 NL80211_FLAG_NEED_RTNL,
e8347eba 7157 },
29cbe68c
JB		 7158 {
7159 .cmd = NL80211_CMD_JOIN_MESH,
7160 .doit = nl80211_join_mesh,
7161 .policy = nl80211_policy,
7162 .flags = GENL_ADMIN_PERM,
7163 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7164 NL80211_FLAG_NEED_RTNL,
7165 },
7166 {
7167 .cmd = NL80211_CMD_LEAVE_MESH,
7168 .doit = nl80211_leave_mesh,
7169 .policy = nl80211_policy,
7170 .flags = GENL_ADMIN_PERM,
7171 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7172 NL80211_FLAG_NEED_RTNL,
7173 },
dfb89c56 7174#ifdef CONFIG_PM
ff1b6e69
JB		 7175 {
7176 .cmd = NL80211_CMD_GET_WOWLAN,
7177 .doit = nl80211_get_wowlan,
7178 .policy = nl80211_policy,
7179 /* can be retrieved by unprivileged users */
7180 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7181 NL80211_FLAG_NEED_RTNL,
7182 },
7183 {
7184 .cmd = NL80211_CMD_SET_WOWLAN,
7185 .doit = nl80211_set_wowlan,
7186 .policy = nl80211_policy,
7187 .flags = GENL_ADMIN_PERM,
7188 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7189 NL80211_FLAG_NEED_RTNL,
7190 },
dfb89c56 7191#endif
e5497d76
JB		 7192 {
7193 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7194 .doit = nl80211_set_rekey_data,
7195 .policy = nl80211_policy,
7196 .flags = GENL_ADMIN_PERM,
7197 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7198 NL80211_FLAG_NEED_RTNL,
7199 },
109086ce
AN		 7200 {
7201 .cmd = NL80211_CMD_TDLS_MGMT,
7202 .doit = nl80211_tdls_mgmt,
7203 .policy = nl80211_policy,
7204 .flags = GENL_ADMIN_PERM,
7205 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7206 NL80211_FLAG_NEED_RTNL,
7207 },
7208 {
7209 .cmd = NL80211_CMD_TDLS_OPER,
7210 .doit = nl80211_tdls_oper,
7211 .policy = nl80211_policy,
7212 .flags = GENL_ADMIN_PERM,
7213 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7214 NL80211_FLAG_NEED_RTNL,
7215 },
28946da7
JB		 7216 {
7217 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7218 .doit = nl80211_register_unexpected_frame,
7219 .policy = nl80211_policy,
7220 .flags = GENL_ADMIN_PERM,
7221 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7222 NL80211_FLAG_NEED_RTNL,
7223 },
7f6cf311
JB		 7224 {
7225 .cmd = NL80211_CMD_PROBE_CLIENT,
7226 .doit = nl80211_probe_client,
7227 .policy = nl80211_policy,
7228 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7229 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 7230 NL80211_FLAG_NEED_RTNL,
7231 },
5e760230
JB		 7232 {
7233 .cmd = NL80211_CMD_REGISTER_BEACONS,
7234 .doit = nl80211_register_beacons,
7235 .policy = nl80211_policy,
7236 .flags = GENL_ADMIN_PERM,
7237 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7238 NL80211_FLAG_NEED_RTNL,
7239 },
1d9d9213
SW		 7240 {
7241 .cmd = NL80211_CMD_SET_NOACK_MAP,
7242 .doit = nl80211_set_noack_map,
7243 .policy = nl80211_policy,
7244 .flags = GENL_ADMIN_PERM,
7245 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7246 NL80211_FLAG_NEED_RTNL,
7247 },
7248
55682965 7249};
9588bbd5 7250
6039f6d2
JM		 7251static struct genl_multicast_group nl80211_mlme_mcgrp = {
7252 .name = "mlme",
7253};
55682965
JB		 7254
7255/* multicast groups */
7256static struct genl_multicast_group nl80211_config_mcgrp = {
7257 .name = "config",
7258};
2a519311
JB		 7259static struct genl_multicast_group nl80211_scan_mcgrp = {
7260 .name = "scan",
7261};
73d54c9e
LR		 7262static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7263 .name = "regulatory",
7264};
55682965
JB		 7265
7266/* notification functions */
7267
7268void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7269{
7270 struct sk_buff *msg;
7271
fd2120ca 7272 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 7273 if (!msg)
7274 return;
7275
7276 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7277 nlmsg_free(msg);
7278 return;
7279 }
7280
463d0183
JB		 7281 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7282 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 7283}
7284
362a415d
JB		 7285static int nl80211_add_scan_req(struct sk_buff *msg,
7286 struct cfg80211_registered_device *rdev)
7287{
7288 struct cfg80211_scan_request *req = rdev->scan_req;
7289 struct nlattr *nest;
7290 int i;
7291
667503dd
JB		 7292 ASSERT_RDEV_LOCK(rdev);
7293
362a415d
JB		 7294 if (WARN_ON(!req))
7295 return 0;
7296
7297 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7298 if (!nest)
7299 goto nla_put_failure;
9360ffd1
DM		 7300 for (i = 0; i < req->n_ssids; i++) {
7301 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7302 goto nla_put_failure;
7303 }
362a415d
JB		 7304 nla_nest_end(msg, nest);
7305
7306 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7307 if (!nest)
7308 goto nla_put_failure;
9360ffd1
DM		 7309 for (i = 0; i < req->n_channels; i++) {
7310 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7311 goto nla_put_failure;
7312 }
362a415d
JB		 7313 nla_nest_end(msg, nest);
7314
9360ffd1
DM		 7315 if (req->ie &&
7316 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7317 goto nla_put_failure;
362a415d
JB		 7318
7319 return 0;
7320 nla_put_failure:
7321 return -ENOBUFS;
7322}
7323
a538e2d5
JB		 7324static int nl80211_send_scan_msg(struct sk_buff *msg,
7325 struct cfg80211_registered_device *rdev,
7326 struct net_device *netdev,
7327 u32 pid, u32 seq, int flags,
7328 u32 cmd)
2a519311
JB		 7329{
7330 void *hdr;
7331
7332 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7333 if (!hdr)
7334 return -1;
7335
9360ffd1
DM		 7336 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7337 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7338 goto nla_put_failure;
2a519311 7339
362a415d
JB		 7340 /* ignore errors and send incomplete event anyway */
7341 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 7342
7343 return genlmsg_end(msg, hdr);
7344
7345 nla_put_failure:
7346 genlmsg_cancel(msg, hdr);
7347 return -EMSGSIZE;
7348}
7349
807f8a8c
LC		 7350static int
7351nl80211_send_sched_scan_msg(struct sk_buff *msg,
7352 struct cfg80211_registered_device *rdev,
7353 struct net_device *netdev,
7354 u32 pid, u32 seq, int flags, u32 cmd)
7355{
7356 void *hdr;
7357
7358 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7359 if (!hdr)
7360 return -1;
7361
9360ffd1
DM		 7362 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7363 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7364 goto nla_put_failure;
807f8a8c
LC		 7365
7366 return genlmsg_end(msg, hdr);
7367
7368 nla_put_failure:
7369 genlmsg_cancel(msg, hdr);
7370 return -EMSGSIZE;
7371}
7372
a538e2d5
JB		 7373void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7374 struct net_device *netdev)
7375{
7376 struct sk_buff *msg;
7377
7378 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7379 if (!msg)
7380 return;
7381
7382 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7383 NL80211_CMD_TRIGGER_SCAN) < 0) {
7384 nlmsg_free(msg);
7385 return;
7386 }
7387
463d0183
JB		 7388 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7389 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 7390}
7391
2a519311
JB		 7392void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7393 struct net_device *netdev)
7394{
7395 struct sk_buff *msg;
7396
fd2120ca 7397 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7398 if (!msg)
7399 return;
7400
a538e2d5
JB		 7401 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7402 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 7403 nlmsg_free(msg);
7404 return;
7405 }
7406
463d0183
JB		 7407 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7408 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7409}
7410
7411void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7412 struct net_device *netdev)
7413{
7414 struct sk_buff *msg;
7415
fd2120ca 7416 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7417 if (!msg)
7418 return;
7419
a538e2d5
JB		 7420 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7421 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 7422 nlmsg_free(msg);
7423 return;
7424 }
7425
463d0183
JB		 7426 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7427 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7428}
7429
807f8a8c
LC		 7430void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7431 struct net_device *netdev)
7432{
7433 struct sk_buff *msg;
7434
7435 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7436 if (!msg)
7437 return;
7438
7439 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7440 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7441 nlmsg_free(msg);
7442 return;
7443 }
7444
7445 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7446 nl80211_scan_mcgrp.id, GFP_KERNEL);
7447}
7448
7449void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7450 struct net_device *netdev, u32 cmd)
7451{
7452 struct sk_buff *msg;
7453
7454 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7455 if (!msg)
7456 return;
7457
7458 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7459 nlmsg_free(msg);
7460 return;
7461 }
7462
7463 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7464 nl80211_scan_mcgrp.id, GFP_KERNEL);
7465}
7466
73d54c9e
LR		 7467/*
7468 * This can happen on global regulatory changes or device specific settings
7469 * based on custom world regulatory domains.
7470 */
7471void nl80211_send_reg_change_event(struct regulatory_request *request)
7472{
7473 struct sk_buff *msg;
7474 void *hdr;
7475
fd2120ca 7476 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 7477 if (!msg)
7478 return;
7479
7480 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7481 if (!hdr) {
7482 nlmsg_free(msg);
7483 return;
7484 }
7485
7486 /* Userspace can always count this one always being set */
9360ffd1
DM		 7487 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7488 goto nla_put_failure;
7489
7490 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7491 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7492 NL80211_REGDOM_TYPE_WORLD))
7493 goto nla_put_failure;
7494 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7495 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7496 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7497 goto nla_put_failure;
7498 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7499 request->intersect) {
7500 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7501 NL80211_REGDOM_TYPE_INTERSECTION))
7502 goto nla_put_failure;
7503 } else {
7504 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7505 NL80211_REGDOM_TYPE_COUNTRY) ||
7506 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7507 request->alpha2))
7508 goto nla_put_failure;
7509 }
7510
7511 if (wiphy_idx_valid(request->wiphy_idx) &&
7512 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7513 goto nla_put_failure;
73d54c9e 7514
3b7b72ee 7515 genlmsg_end(msg, hdr);
73d54c9e 7516
bc43b28c 7517 rcu_read_lock();
463d0183 7518 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 7519 GFP_ATOMIC);
7520 rcu_read_unlock();
73d54c9e
LR		 7521
7522 return;
7523
7524nla_put_failure:
7525 genlmsg_cancel(msg, hdr);
7526 nlmsg_free(msg);
7527}
7528
6039f6d2
JM		 7529static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7530 struct net_device *netdev,
7531 const u8 *buf, size_t len,
e6d6e342 7532 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 7533{
7534 struct sk_buff *msg;
7535 void *hdr;
7536
e6d6e342 7537 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 7538 if (!msg)
7539 return;
7540
7541 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7542 if (!hdr) {
7543 nlmsg_free(msg);
7544 return;
7545 }
7546
9360ffd1
DM		 7547 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7548 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7549 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7550 goto nla_put_failure;
6039f6d2 7551
3b7b72ee 7552 genlmsg_end(msg, hdr);
6039f6d2 7553
463d0183
JB		 7554 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7555 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 7556 return;
7557
7558 nla_put_failure:
7559 genlmsg_cancel(msg, hdr);
7560 nlmsg_free(msg);
7561}
7562
7563void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7564 struct net_device *netdev, const u8 *buf,
7565 size_t len, gfp_t gfp)
6039f6d2
JM		 7566{
7567 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7568 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 7569}
7570
7571void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7572 struct net_device *netdev, const u8 *buf,
e6d6e342 7573 size_t len, gfp_t gfp)
6039f6d2 7574{
e6d6e342
JB		 7575 nl80211_send_mlme_event(rdev, netdev, buf, len,
7576 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 7577}
7578
53b46b84 7579void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7580 struct net_device *netdev, const u8 *buf,
7581 size_t len, gfp_t gfp)
6039f6d2
JM		 7582{
7583 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7584 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 7585}
7586
53b46b84
JM		 7587void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7588 struct net_device *netdev, const u8 *buf,
e6d6e342 7589 size_t len, gfp_t gfp)
6039f6d2
JM		 7590{
7591 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7592 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 7593}
7594
cf4e594e
JM		 7595void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7596 struct net_device *netdev, const u8 *buf,
7597 size_t len, gfp_t gfp)
7598{
7599 nl80211_send_mlme_event(rdev, netdev, buf, len,
7600 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7601}
7602
7603void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7604 struct net_device *netdev, const u8 *buf,
7605 size_t len, gfp_t gfp)
7606{
7607 nl80211_send_mlme_event(rdev, netdev, buf, len,
7608 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7609}
7610
1b06bb40
LR		 7611static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7612 struct net_device *netdev, int cmd,
e6d6e342 7613 const u8 *addr, gfp_t gfp)
1965c853
JM		 7614{
7615 struct sk_buff *msg;
7616 void *hdr;
7617
e6d6e342 7618 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 7619 if (!msg)
7620 return;
7621
7622 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7623 if (!hdr) {
7624 nlmsg_free(msg);
7625 return;
7626 }
7627
9360ffd1
DM		 7628 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7629 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7630 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7631 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7632 goto nla_put_failure;
1965c853 7633
3b7b72ee 7634 genlmsg_end(msg, hdr);
1965c853 7635
463d0183
JB		 7636 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7637 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 7638 return;
7639
7640 nla_put_failure:
7641 genlmsg_cancel(msg, hdr);
7642 nlmsg_free(msg);
7643}
7644
7645void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7646 struct net_device *netdev, const u8 *addr,
7647 gfp_t gfp)
1965c853
JM		 7648{
7649 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 7650 addr, gfp);
1965c853
JM		 7651}
7652
7653void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7654 struct net_device *netdev, const u8 *addr,
7655 gfp_t gfp)
1965c853 7656{
e6d6e342
JB		 7657 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7658 addr, gfp);
1965c853
JM		 7659}
7660
b23aa676
SO		 7661void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7662 struct net_device *netdev, const u8 *bssid,
7663 const u8 *req_ie, size_t req_ie_len,
7664 const u8 *resp_ie, size_t resp_ie_len,
7665 u16 status, gfp_t gfp)
7666{
7667 struct sk_buff *msg;
7668 void *hdr;
7669
7670 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7671 if (!msg)
7672 return;
7673
7674 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7675 if (!hdr) {
7676 nlmsg_free(msg);
7677 return;
7678 }
7679
9360ffd1
DM		 7680 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7681 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7682 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
7683 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
7684 (req_ie &&
7685 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7686 (resp_ie &&
7687 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7688 goto nla_put_failure;
b23aa676 7689
3b7b72ee 7690 genlmsg_end(msg, hdr);
b23aa676 7691
463d0183
JB		 7692 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7693 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7694 return;
7695
7696 nla_put_failure:
7697 genlmsg_cancel(msg, hdr);
7698 nlmsg_free(msg);
7699
7700}
7701
7702void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7703 struct net_device *netdev, const u8 *bssid,
7704 const u8 *req_ie, size_t req_ie_len,
7705 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7706{
7707 struct sk_buff *msg;
7708 void *hdr;
7709
7710 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7711 if (!msg)
7712 return;
7713
7714 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7715 if (!hdr) {
7716 nlmsg_free(msg);
7717 return;
7718 }
7719
9360ffd1
DM		 7720 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7721 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7722 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
7723 (req_ie &&
7724 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7725 (resp_ie &&
7726 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7727 goto nla_put_failure;
b23aa676 7728
3b7b72ee 7729 genlmsg_end(msg, hdr);
b23aa676 7730
463d0183
JB		 7731 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7732 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7733 return;
7734
7735 nla_put_failure:
7736 genlmsg_cancel(msg, hdr);
7737 nlmsg_free(msg);
7738
7739}
7740
7741void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7742 struct net_device *netdev, u16 reason,
667503dd 7743 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 7744{
7745 struct sk_buff *msg;
7746 void *hdr;
7747
667503dd 7748 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 7749 if (!msg)
7750 return;
7751
7752 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7753 if (!hdr) {
7754 nlmsg_free(msg);
7755 return;
7756 }
7757
9360ffd1
DM		 7758 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7759 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7760 (from_ap && reason &&
7761 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
7762 (from_ap &&
7763 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
7764 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
7765 goto nla_put_failure;
b23aa676 7766
3b7b72ee 7767 genlmsg_end(msg, hdr);
b23aa676 7768
463d0183
JB		 7769 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7770 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 7771 return;
7772
7773 nla_put_failure:
7774 genlmsg_cancel(msg, hdr);
7775 nlmsg_free(msg);
7776
7777}
7778
04a773ad
JB		 7779void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7780 struct net_device *netdev, const u8 *bssid,
7781 gfp_t gfp)
7782{
7783 struct sk_buff *msg;
7784 void *hdr;
7785
fd2120ca 7786 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 7787 if (!msg)
7788 return;
7789
7790 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7791 if (!hdr) {
7792 nlmsg_free(msg);
7793 return;
7794 }
7795
9360ffd1
DM		 7796 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7797 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7798 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
7799 goto nla_put_failure;
04a773ad 7800
3b7b72ee 7801 genlmsg_end(msg, hdr);
04a773ad 7802
463d0183
JB		 7803 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7804 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 7805 return;
7806
7807 nla_put_failure:
7808 genlmsg_cancel(msg, hdr);
7809 nlmsg_free(msg);
7810}
7811
c93b5e71
JC		 7812void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7813 struct net_device *netdev,
7814 const u8 *macaddr, const u8* ie, u8 ie_len,
7815 gfp_t gfp)
7816{
7817 struct sk_buff *msg;
7818 void *hdr;
7819
7820 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7821 if (!msg)
7822 return;
7823
7824 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7825 if (!hdr) {
7826 nlmsg_free(msg);
7827 return;
7828 }
7829
9360ffd1
DM		 7830 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7831 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7832 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
7833 (ie_len && ie &&
7834 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
7835 goto nla_put_failure;
c93b5e71 7836
3b7b72ee 7837 genlmsg_end(msg, hdr);
c93b5e71
JC		 7838
7839 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7840 nl80211_mlme_mcgrp.id, gfp);
7841 return;
7842
7843 nla_put_failure:
7844 genlmsg_cancel(msg, hdr);
7845 nlmsg_free(msg);
7846}
7847
a3b8b056
JM		 7848void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7849 struct net_device *netdev, const u8 *addr,
7850 enum nl80211_key_type key_type, int key_id,
e6d6e342 7851 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 7852{
7853 struct sk_buff *msg;
7854 void *hdr;
7855
e6d6e342 7856 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 7857 if (!msg)
7858 return;
7859
7860 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7861 if (!hdr) {
7862 nlmsg_free(msg);
7863 return;
7864 }
7865
9360ffd1
DM		 7866 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7867 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7868 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
7869 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
7870 (key_id != -1 &&
7871 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
7872 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
7873 goto nla_put_failure;
a3b8b056 7874
3b7b72ee 7875 genlmsg_end(msg, hdr);
a3b8b056 7876
463d0183
JB		 7877 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7878 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 7879 return;
7880
7881 nla_put_failure:
7882 genlmsg_cancel(msg, hdr);
7883 nlmsg_free(msg);
7884}
7885
6bad8766
LR		 7886void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7887 struct ieee80211_channel *channel_before,
7888 struct ieee80211_channel *channel_after)
7889{
7890 struct sk_buff *msg;
7891 void *hdr;
7892 struct nlattr *nl_freq;
7893
fd2120ca 7894 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 7895 if (!msg)
7896 return;
7897
7898 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7899 if (!hdr) {
7900 nlmsg_free(msg);
7901 return;
7902 }
7903
7904 /*
7905 * Since we are applying the beacon hint to a wiphy we know its
7906 * wiphy_idx is valid
7907 */
9360ffd1
DM		 7908 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
7909 goto nla_put_failure;
6bad8766
LR		 7910
7911 /* Before */
7912 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7913 if (!nl_freq)
7914 goto nla_put_failure;
7915 if (nl80211_msg_put_channel(msg, channel_before))
7916 goto nla_put_failure;
7917 nla_nest_end(msg, nl_freq);
7918
7919 /* After */
7920 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7921 if (!nl_freq)
7922 goto nla_put_failure;
7923 if (nl80211_msg_put_channel(msg, channel_after))
7924 goto nla_put_failure;
7925 nla_nest_end(msg, nl_freq);
7926
3b7b72ee 7927 genlmsg_end(msg, hdr);
6bad8766 7928
463d0183
JB		 7929 rcu_read_lock();
7930 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7931 GFP_ATOMIC);
7932 rcu_read_unlock();
6bad8766
LR		 7933
7934 return;
7935
7936nla_put_failure:
7937 genlmsg_cancel(msg, hdr);
7938 nlmsg_free(msg);
7939}
7940
9588bbd5
JM		 7941static void nl80211_send_remain_on_chan_event(
7942 int cmd, struct cfg80211_registered_device *rdev,
7943 struct net_device *netdev, u64 cookie,
7944 struct ieee80211_channel *chan,
7945 enum nl80211_channel_type channel_type,
7946 unsigned int duration, gfp_t gfp)
7947{
7948 struct sk_buff *msg;
7949 void *hdr;
7950
7951 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7952 if (!msg)
7953 return;
7954
7955 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7956 if (!hdr) {
7957 nlmsg_free(msg);
7958 return;
7959 }
7960
9360ffd1
DM		 7961 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7962 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7963 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
7964 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
7965 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7966 goto nla_put_failure;
9588bbd5 7967
9360ffd1
DM		 7968 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
7969 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
7970 goto nla_put_failure;
9588bbd5 7971
3b7b72ee 7972 genlmsg_end(msg, hdr);
9588bbd5
JM		 7973
7974 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7975 nl80211_mlme_mcgrp.id, gfp);
7976 return;
7977
7978 nla_put_failure:
7979 genlmsg_cancel(msg, hdr);
7980 nlmsg_free(msg);
7981}
7982
7983void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7984 struct net_device *netdev, u64 cookie,
7985 struct ieee80211_channel *chan,
7986 enum nl80211_channel_type channel_type,
7987 unsigned int duration, gfp_t gfp)
7988{
7989 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7990 rdev, netdev, cookie, chan,
7991 channel_type, duration, gfp);
7992}
7993
7994void nl80211_send_remain_on_channel_cancel(
7995 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7996 u64 cookie, struct ieee80211_channel *chan,
7997 enum nl80211_channel_type channel_type, gfp_t gfp)
7998{
7999 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8000 rdev, netdev, cookie, chan,
8001 channel_type, 0, gfp);
8002}
8003
98b62183
JB		 8004void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8005 struct net_device *dev, const u8 *mac_addr,
8006 struct station_info *sinfo, gfp_t gfp)
8007{
8008 struct sk_buff *msg;
8009
8010 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8011 if (!msg)
8012 return;
8013
66266b3a
JL		 8014 if (nl80211_send_station(msg, 0, 0, 0,
8015 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 8016 nlmsg_free(msg);
8017 return;
8018 }
8019
8020 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8021 nl80211_mlme_mcgrp.id, gfp);
8022}
8023
ec15e68b
JM		 8024void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8025 struct net_device *dev, const u8 *mac_addr,
8026 gfp_t gfp)
8027{
8028 struct sk_buff *msg;
8029 void *hdr;
8030
8031 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8032 if (!msg)
8033 return;
8034
8035 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8036 if (!hdr) {
8037 nlmsg_free(msg);
8038 return;
8039 }
8040
9360ffd1
DM		 8041 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8042 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8043 goto nla_put_failure;
ec15e68b 8044
3b7b72ee 8045 genlmsg_end(msg, hdr);
ec15e68b
JM		 8046
8047 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8048 nl80211_mlme_mcgrp.id, gfp);
8049 return;
8050
8051 nla_put_failure:
8052 genlmsg_cancel(msg, hdr);
8053 nlmsg_free(msg);
8054}
8055
b92ab5d8
JB		 8056static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8057 const u8 *addr, gfp_t gfp)
28946da7
JB		 8058{
8059 struct wireless_dev *wdev = dev->ieee80211_ptr;
8060 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8061 struct sk_buff *msg;
8062 void *hdr;
8063 int err;
8064 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
8065
8066 if (!nlpid)
8067 return false;
8068
8069 msg = nlmsg_new(100, gfp);
8070 if (!msg)
8071 return true;
8072
b92ab5d8 8073 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 8074 if (!hdr) {
8075 nlmsg_free(msg);
8076 return true;
8077 }
8078
9360ffd1
DM		 8079 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8080 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8081 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8082 goto nla_put_failure;
28946da7
JB		 8083
8084 err = genlmsg_end(msg, hdr);
8085 if (err < 0) {
8086 nlmsg_free(msg);
8087 return true;
8088 }
8089
8090 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8091 return true;
8092
8093 nla_put_failure:
8094 genlmsg_cancel(msg, hdr);
8095 nlmsg_free(msg);
8096 return true;
8097}
8098
b92ab5d8
JB		 8099bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8100{
8101 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8102 addr, gfp);
8103}
8104
8105bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8106 const u8 *addr, gfp_t gfp)
8107{
8108 return __nl80211_unexpected_frame(dev,
8109 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8110 addr, gfp);
8111}
8112
2e161f78
JB		 8113int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8114 struct net_device *netdev, u32 nlpid,
804483e9
JB		 8115 int freq, int sig_dbm,
8116 const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 8117{
8118 struct sk_buff *msg;
8119 void *hdr;
026331c4
JM		 8120
8121 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8122 if (!msg)
8123 return -ENOMEM;
8124
2e161f78 8125 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 8126 if (!hdr) {
8127 nlmsg_free(msg);
8128 return -ENOMEM;
8129 }
8130
9360ffd1
DM		 8131 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8132 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8133 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8134 (sig_dbm &&
8135 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8136 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8137 goto nla_put_failure;
026331c4 8138
3b7b72ee 8139 genlmsg_end(msg, hdr);
026331c4 8140
3b7b72ee 8141 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
026331c4
JM		 8142
8143 nla_put_failure:
8144 genlmsg_cancel(msg, hdr);
8145 nlmsg_free(msg);
8146 return -ENOBUFS;
8147}
8148
2e161f78
JB		 8149void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8150 struct net_device *netdev, u64 cookie,
8151 const u8 *buf, size_t len, bool ack,
8152 gfp_t gfp)
026331c4
JM		 8153{
8154 struct sk_buff *msg;
8155 void *hdr;
8156
8157 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8158 if (!msg)
8159 return;
8160
2e161f78 8161 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 8162 if (!hdr) {
8163 nlmsg_free(msg);
8164 return;
8165 }
8166
9360ffd1
DM		 8167 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8168 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8169 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8170 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8171 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8172 goto nla_put_failure;
026331c4 8173
3b7b72ee 8174 genlmsg_end(msg, hdr);
026331c4
JM		 8175
8176 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8177 return;
8178
8179 nla_put_failure:
8180 genlmsg_cancel(msg, hdr);
8181 nlmsg_free(msg);
8182}
8183
d6dc1a38
JO		 8184void
8185nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8186 struct net_device *netdev,
8187 enum nl80211_cqm_rssi_threshold_event rssi_event,
8188 gfp_t gfp)
8189{
8190 struct sk_buff *msg;
8191 struct nlattr *pinfoattr;
8192 void *hdr;
8193
8194 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8195 if (!msg)
8196 return;
8197
8198 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8199 if (!hdr) {
8200 nlmsg_free(msg);
8201 return;
8202 }
8203
9360ffd1
DM		 8204 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8205 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8206 goto nla_put_failure;
d6dc1a38
JO		 8207
8208 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8209 if (!pinfoattr)
8210 goto nla_put_failure;
8211
9360ffd1
DM		 8212 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8213 rssi_event))
8214 goto nla_put_failure;
d6dc1a38
JO		 8215
8216 nla_nest_end(msg, pinfoattr);
8217
3b7b72ee 8218 genlmsg_end(msg, hdr);
d6dc1a38
JO		 8219
8220 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8221 nl80211_mlme_mcgrp.id, gfp);
8222 return;
8223
8224 nla_put_failure:
8225 genlmsg_cancel(msg, hdr);
8226 nlmsg_free(msg);
8227}
8228
e5497d76
JB		 8229void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8230 struct net_device *netdev, const u8 *bssid,
8231 const u8 *replay_ctr, gfp_t gfp)
8232{
8233 struct sk_buff *msg;
8234 struct nlattr *rekey_attr;
8235 void *hdr;
8236
8237 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8238 if (!msg)
8239 return;
8240
8241 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8242 if (!hdr) {
8243 nlmsg_free(msg);
8244 return;
8245 }
8246
9360ffd1
DM		 8247 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8248 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8249 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8250 goto nla_put_failure;
e5497d76
JB		 8251
8252 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8253 if (!rekey_attr)
8254 goto nla_put_failure;
8255
9360ffd1
DM		 8256 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8257 NL80211_REPLAY_CTR_LEN, replay_ctr))
8258 goto nla_put_failure;
e5497d76
JB		 8259
8260 nla_nest_end(msg, rekey_attr);
8261
3b7b72ee 8262 genlmsg_end(msg, hdr);
e5497d76
JB		 8263
8264 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8265 nl80211_mlme_mcgrp.id, gfp);
8266 return;
8267
8268 nla_put_failure:
8269 genlmsg_cancel(msg, hdr);
8270 nlmsg_free(msg);
8271}
8272
c9df56b4
JM		 8273void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8274 struct net_device *netdev, int index,
8275 const u8 *bssid, bool preauth, gfp_t gfp)
8276{
8277 struct sk_buff *msg;
8278 struct nlattr *attr;
8279 void *hdr;
8280
8281 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8282 if (!msg)
8283 return;
8284
8285 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8286 if (!hdr) {
8287 nlmsg_free(msg);
8288 return;
8289 }
8290
9360ffd1
DM		 8291 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8292 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8293 goto nla_put_failure;
c9df56b4
JM		 8294
8295 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8296 if (!attr)
8297 goto nla_put_failure;
8298
9360ffd1
DM		 8299 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8300 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8301 (preauth &&
8302 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8303 goto nla_put_failure;
c9df56b4
JM		 8304
8305 nla_nest_end(msg, attr);
8306
3b7b72ee 8307 genlmsg_end(msg, hdr);
c9df56b4
JM		 8308
8309 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8310 nl80211_mlme_mcgrp.id, gfp);
8311 return;
8312
8313 nla_put_failure:
8314 genlmsg_cancel(msg, hdr);
8315 nlmsg_free(msg);
8316}
8317
5314526b
TP		 8318void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8319 struct net_device *netdev, int freq,
8320 enum nl80211_channel_type type, gfp_t gfp)
8321{
8322 struct sk_buff *msg;
8323 void *hdr;
8324
8325 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8326 if (!msg)
8327 return;
8328
8329 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8330 if (!hdr) {
8331 nlmsg_free(msg);
8332 return;
8333 }
8334
7eab0f64
JL		 8335 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8336 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8337 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8338 goto nla_put_failure;
5314526b
TP		 8339
8340 genlmsg_end(msg, hdr);
8341
8342 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8343 nl80211_mlme_mcgrp.id, gfp);
8344 return;
8345
8346 nla_put_failure:
8347 genlmsg_cancel(msg, hdr);
8348 nlmsg_free(msg);
8349}
8350
c063dbf5
JB		 8351void
8352nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8353 struct net_device *netdev, const u8 *peer,
8354 u32 num_packets, gfp_t gfp)
8355{
8356 struct sk_buff *msg;
8357 struct nlattr *pinfoattr;
8358 void *hdr;
8359
8360 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8361 if (!msg)
8362 return;
8363
8364 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8365 if (!hdr) {
8366 nlmsg_free(msg);
8367 return;
8368 }
8369
9360ffd1
DM		 8370 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8371 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8372 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8373 goto nla_put_failure;
c063dbf5
JB		 8374
8375 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8376 if (!pinfoattr)
8377 goto nla_put_failure;
8378
9360ffd1
DM		 8379 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8380 goto nla_put_failure;
c063dbf5
JB		 8381
8382 nla_nest_end(msg, pinfoattr);
8383
3b7b72ee 8384 genlmsg_end(msg, hdr);
c063dbf5
JB		 8385
8386 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8387 nl80211_mlme_mcgrp.id, gfp);
8388 return;
8389
8390 nla_put_failure:
8391 genlmsg_cancel(msg, hdr);
8392 nlmsg_free(msg);
8393}
8394
7f6cf311
JB		 8395void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8396 u64 cookie, bool acked, gfp_t gfp)
8397{
8398 struct wireless_dev *wdev = dev->ieee80211_ptr;
8399 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8400 struct sk_buff *msg;
8401 void *hdr;
8402 int err;
8403
8404 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8405 if (!msg)
8406 return;
8407
8408 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8409 if (!hdr) {
8410 nlmsg_free(msg);
8411 return;
8412 }
8413
9360ffd1
DM		 8414 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8415 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8416 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8417 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8418 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8419 goto nla_put_failure;
7f6cf311
JB		 8420
8421 err = genlmsg_end(msg, hdr);
8422 if (err < 0) {
8423 nlmsg_free(msg);
8424 return;
8425 }
8426
8427 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8428 nl80211_mlme_mcgrp.id, gfp);
8429 return;
8430
8431 nla_put_failure:
8432 genlmsg_cancel(msg, hdr);
8433 nlmsg_free(msg);
8434}
8435EXPORT_SYMBOL(cfg80211_probe_status);
8436
5e760230
JB		 8437void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8438 const u8 *frame, size_t len,
804483e9 8439 int freq, int sig_dbm, gfp_t gfp)
5e760230
JB		 8440{
8441 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8442 struct sk_buff *msg;
8443 void *hdr;
8444 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8445
8446 if (!nlpid)
8447 return;
8448
8449 msg = nlmsg_new(len + 100, gfp);
8450 if (!msg)
8451 return;
8452
8453 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8454 if (!hdr) {
8455 nlmsg_free(msg);
8456 return;
8457 }
8458
9360ffd1
DM		 8459 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8460 (freq &&
8461 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8462 (sig_dbm &&
8463 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8464 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8465 goto nla_put_failure;
5e760230
JB		 8466
8467 genlmsg_end(msg, hdr);
8468
8469 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8470 return;
8471
8472 nla_put_failure:
8473 genlmsg_cancel(msg, hdr);
8474 nlmsg_free(msg);
8475}
8476EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8477
026331c4
JM		 8478static int nl80211_netlink_notify(struct notifier_block * nb,
8479 unsigned long state,
8480 void *_notify)
8481{
8482 struct netlink_notify *notify = _notify;
8483 struct cfg80211_registered_device *rdev;
8484 struct wireless_dev *wdev;
8485
8486 if (state != NETLINK_URELEASE)
8487 return NOTIFY_DONE;
8488
8489 rcu_read_lock();
8490
5e760230 8491 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
026331c4 8492 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 8493 cfg80211_mlme_unregister_socket(wdev, notify->pid);
5e760230
JB		 8494 if (rdev->ap_beacons_nlpid == notify->pid)
8495 rdev->ap_beacons_nlpid = 0;
8496 }
026331c4
JM		 8497
8498 rcu_read_unlock();
8499
8500 return NOTIFY_DONE;
8501}
8502
8503static struct notifier_block nl80211_netlink_notifier = {
8504 .notifier_call = nl80211_netlink_notify,
8505};
8506
55682965
JB		 8507/* initialisation/exit functions */
8508
8509int nl80211_init(void)
8510{
0d63cbb5 8511 int err;
55682965 8512
0d63cbb5
MM		 8513 err = genl_register_family_with_ops(&nl80211_fam,
8514 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 8515 if (err)
8516 return err;
8517
55682965
JB		 8518 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8519 if (err)
8520 goto err_out;
8521
2a519311
JB		 8522 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8523 if (err)
8524 goto err_out;
8525
73d54c9e
LR		 8526 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8527 if (err)
8528 goto err_out;
8529
6039f6d2
JM		 8530 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8531 if (err)
8532 goto err_out;
8533
aff89a9b
JB		 8534#ifdef CONFIG_NL80211_TESTMODE
8535 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8536 if (err)
8537 goto err_out;
8538#endif
8539
026331c4
JM		 8540 err = netlink_register_notifier(&nl80211_netlink_notifier);
8541 if (err)
8542 goto err_out;
8543
55682965
JB		 8544 return 0;
8545 err_out:
8546 genl_unregister_family(&nl80211_fam);
8547 return err;
8548}
8549
8550void nl80211_exit(void)
8551{
026331c4 8552 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 8553 genl_unregister_family(&nl80211_fam);
8554}
Linux 6.x block layer and io_uring tree(s)