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cfg80211: fix locking regression in monitor channel tracking
[mirror_ubuntu-bionic-kernel.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
2e165b81
MK		 1692 if (rdev->monitor_channel) {
1693 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1694 rdev->monitor_channel->center_freq) ||
1695 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1696 rdev->monitor_channel_type))
59ef43e6 1697 goto nla_put_failure;
d91df0e3
PF		 1698 }
1699
55682965
JB		 1700 return genlmsg_end(msg, hdr);
1701
1702 nla_put_failure:
bc3ed28c
TG		 1703 genlmsg_cancel(msg, hdr);
1704 return -EMSGSIZE;
55682965
JB		 1705}
1706
1707static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1708{
1709 int wp_idx = 0;
1710 int if_idx = 0;
1711 int wp_start = cb->args[0];
1712 int if_start = cb->args[1];
f5ea9120 1713 struct cfg80211_registered_device *rdev;
55682965
JB		 1714 struct wireless_dev *wdev;
1715
a1794390 1716 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1717 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1718 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1719 continue;
bba95fef
JB		 1720 if (wp_idx < wp_start) {
1721 wp_idx++;
55682965 1722 continue;
bba95fef 1723 }
55682965
JB		 1724 if_idx = 0;
1725
f5ea9120
JB		 1726 mutex_lock(&rdev->devlist_mtx);
1727 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1728 if (if_idx < if_start) {
1729 if_idx++;
55682965 1730 continue;
bba95fef 1731 }
55682965
JB		 1732 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1733 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1734 rdev, wdev->netdev) < 0) {
1735 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1736 goto out;
1737 }
1738 if_idx++;
55682965 1739 }
f5ea9120 1740 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1741
1742 wp_idx++;
55682965 1743 }
bba95fef 1744 out:
a1794390 1745 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1746
1747 cb->args[0] = wp_idx;
1748 cb->args[1] = if_idx;
1749
1750 return skb->len;
1751}
1752
1753static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1754{
1755 struct sk_buff *msg;
4c476991
JB		 1756 struct cfg80211_registered_device *dev = info->user_ptr[0];
1757 struct net_device *netdev = info->user_ptr[1];
55682965 1758
fd2120ca 1759 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1760 if (!msg)
4c476991 1761 return -ENOMEM;
55682965 1762
d726405a 1763 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1764 dev, netdev) < 0) {
1765 nlmsg_free(msg);
1766 return -ENOBUFS;
1767 }
55682965 1768
134e6375 1769 return genlmsg_reply(msg, info);
55682965
JB		 1770}
1771
66f7ac50
MW		 1772static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1773 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1774 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1775 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1776 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1777 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1778};
1779
1780static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1781{
1782 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1783 int flag;
1784
1785 *mntrflags = 0;
1786
1787 if (!nla)
1788 return -EINVAL;
1789
1790 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1791 nla, mntr_flags_policy))
1792 return -EINVAL;
1793
1794 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1795 if (flags[flag])
1796 *mntrflags |= (1<<flag);
1797
1798 return 0;
1799}
1800
9bc383de 1801static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1802 struct net_device *netdev, u8 use_4addr,
1803 enum nl80211_iftype iftype)
9bc383de 1804{
ad4bb6f8 1805 if (!use_4addr) {
f350a0a8 1806 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1807 return -EBUSY;
9bc383de 1808 return 0;
ad4bb6f8 1809 }
9bc383de
JB		 1810
1811 switch (iftype) {
1812 case NL80211_IFTYPE_AP_VLAN:
1813 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1814 return 0;
1815 break;
1816 case NL80211_IFTYPE_STATION:
1817 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1818 return 0;
1819 break;
1820 default:
1821 break;
1822 }
1823
1824 return -EOPNOTSUPP;
1825}
1826
55682965
JB		 1827static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1828{
4c476991 1829 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1830 struct vif_params params;
e36d56b6 1831 int err;
04a773ad 1832 enum nl80211_iftype otype, ntype;
4c476991 1833 struct net_device *dev = info->user_ptr[1];
92ffe055 1834 u32 _flags, *flags = NULL;
ac7f9cfa 1835 bool change = false;
55682965 1836
2ec600d6
LCC		 1837 memset(&params, 0, sizeof(params));
1838
04a773ad 1839 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1840
723b038d 1841 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1842 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1843 if (otype != ntype)
ac7f9cfa 1844 change = true;
4c476991
JB		 1845 if (ntype > NL80211_IFTYPE_MAX)
1846 return -EINVAL;
723b038d
JB		 1847 }
1848
92ffe055 1849 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1850 struct wireless_dev *wdev = dev->ieee80211_ptr;
1851
4c476991
JB		 1852 if (ntype != NL80211_IFTYPE_MESH_POINT)
1853 return -EINVAL;
29cbe68c
JB		 1854 if (netif_running(dev))
1855 return -EBUSY;
1856
1857 wdev_lock(wdev);
1858 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1859 IEEE80211_MAX_MESH_ID_LEN);
1860 wdev->mesh_id_up_len =
1861 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1862 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1863 wdev->mesh_id_up_len);
1864 wdev_unlock(wdev);
2ec600d6
LCC		 1865 }
1866
8b787643
FF		 1867 if (info->attrs[NL80211_ATTR_4ADDR]) {
1868 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1869 change = true;
ad4bb6f8 1870 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1871 if (err)
4c476991 1872 return err;
8b787643
FF		 1873 } else {
1874 params.use_4addr = -1;
1875 }
1876
92ffe055 1877 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1878 if (ntype != NL80211_IFTYPE_MONITOR)
1879 return -EINVAL;
92ffe055
JB		 1880 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1881 &_flags);
ac7f9cfa 1882 if (err)
4c476991 1883 return err;
ac7f9cfa
JB		 1884
1885 flags = &_flags;
1886 change = true;
92ffe055 1887 }
3b85875a 1888
ac7f9cfa 1889 if (change)
3d54d255 1890 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1891 else
1892 err = 0;
60719ffd 1893
9bc383de
JB		 1894 if (!err && params.use_4addr != -1)
1895 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1896
55682965
JB		 1897 return err;
1898}
1899
1900static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1901{
4c476991 1902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1903 struct vif_params params;
f9e10ce4 1904 struct net_device *dev;
55682965
JB		 1905 int err;
1906 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1907 u32 flags;
55682965 1908
2ec600d6
LCC		 1909 memset(&params, 0, sizeof(params));
1910
55682965
JB		 1911 if (!info->attrs[NL80211_ATTR_IFNAME])
1912 return -EINVAL;
1913
1914 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1915 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1916 if (type > NL80211_IFTYPE_MAX)
1917 return -EINVAL;
1918 }
1919
79c97e97 1920 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1921 !(rdev->wiphy.interface_modes & (1 << type)))
1922 return -EOPNOTSUPP;
55682965 1923
9bc383de 1924 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1925 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1926 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1927 if (err)
4c476991 1928 return err;
9bc383de 1929 }
8b787643 1930
66f7ac50
MW		 1931 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1932 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1933 &flags);
f9e10ce4 1934 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1935 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1936 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1937 if (IS_ERR(dev))
1938 return PTR_ERR(dev);
2ec600d6 1939
29cbe68c
JB		 1940 if (type == NL80211_IFTYPE_MESH_POINT &&
1941 info->attrs[NL80211_ATTR_MESH_ID]) {
1942 struct wireless_dev *wdev = dev->ieee80211_ptr;
1943
1944 wdev_lock(wdev);
1945 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1946 IEEE80211_MAX_MESH_ID_LEN);
1947 wdev->mesh_id_up_len =
1948 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1949 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1950 wdev->mesh_id_up_len);
1951 wdev_unlock(wdev);
1952 }
1953
f9e10ce4 1954 return 0;
55682965
JB		 1955}
1956
1957static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1958{
4c476991
JB		 1959 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1960 struct net_device *dev = info->user_ptr[1];
55682965 1961
4c476991
JB		 1962 if (!rdev->ops->del_virtual_intf)
1963 return -EOPNOTSUPP;
55682965 1964
4c476991 1965 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1966}
1967
1d9d9213
SW		 1968static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
1969{
1970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1971 struct net_device *dev = info->user_ptr[1];
1972 u16 noack_map;
1973
1974 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
1975 return -EINVAL;
1976
1977 if (!rdev->ops->set_noack_map)
1978 return -EOPNOTSUPP;
1979
1980 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
1981
1982 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
1983}
1984
41ade00f
JB		 1985struct get_key_cookie {
1986 struct sk_buff *msg;
1987 int error;
b9454e83 1988 int idx;
41ade00f
JB		 1989};
1990
1991static void get_key_callback(void *c, struct key_params *params)
1992{
b9454e83 1993 struct nlattr *key;
41ade00f
JB		 1994 struct get_key_cookie *cookie = c;
1995
9360ffd1
DM		 1996 if ((params->key &&
1997 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
1998 params->key_len, params->key)) ||
1999 (params->seq &&
2000 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2001 params->seq_len, params->seq)) ||
2002 (params->cipher &&
2003 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2004 params->cipher)))
2005 goto nla_put_failure;
41ade00f 2006
b9454e83
JB		 2007 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2008 if (!key)
2009 goto nla_put_failure;
2010
9360ffd1
DM		 2011 if ((params->key &&
2012 nla_put(cookie->msg, NL80211_KEY_DATA,
2013 params->key_len, params->key)) ||
2014 (params->seq &&
2015 nla_put(cookie->msg, NL80211_KEY_SEQ,
2016 params->seq_len, params->seq)) ||
2017 (params->cipher &&
2018 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2019 params->cipher)))
2020 goto nla_put_failure;
b9454e83 2021
9360ffd1
DM		 2022 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2023 goto nla_put_failure;
b9454e83
JB		 2024
2025 nla_nest_end(cookie->msg, key);
2026
41ade00f
JB		 2027 return;
2028 nla_put_failure:
2029 cookie->error = 1;
2030}
2031
2032static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2033{
4c476991 2034 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2035 int err;
4c476991 2036 struct net_device *dev = info->user_ptr[1];
41ade00f 2037 u8 key_idx = 0;
e31b8213
JB		 2038 const u8 *mac_addr = NULL;
2039 bool pairwise;
41ade00f
JB		 2040 struct get_key_cookie cookie = {
2041 .error = 0,
2042 };
2043 void *hdr;
2044 struct sk_buff *msg;
2045
2046 if (info->attrs[NL80211_ATTR_KEY_IDX])
2047 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2048
3cfcf6ac 2049 if (key_idx > 5)
41ade00f
JB		 2050 return -EINVAL;
2051
2052 if (info->attrs[NL80211_ATTR_MAC])
2053 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2054
e31b8213
JB		 2055 pairwise = !!mac_addr;
2056 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2057 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2058 if (kt >= NUM_NL80211_KEYTYPES)
2059 return -EINVAL;
2060 if (kt != NL80211_KEYTYPE_GROUP &&
2061 kt != NL80211_KEYTYPE_PAIRWISE)
2062 return -EINVAL;
2063 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2064 }
2065
4c476991
JB		 2066 if (!rdev->ops->get_key)
2067 return -EOPNOTSUPP;
41ade00f 2068
fd2120ca 2069 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2070 if (!msg)
2071 return -ENOMEM;
41ade00f
JB		 2072
2073 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2074 NL80211_CMD_NEW_KEY);
4c476991
JB		 2075 if (IS_ERR(hdr))
2076 return PTR_ERR(hdr);
41ade00f
JB		 2077
2078 cookie.msg = msg;
b9454e83 2079 cookie.idx = key_idx;
41ade00f 2080
9360ffd1
DM		 2081 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2082 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2083 goto nla_put_failure;
2084 if (mac_addr &&
2085 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2086 goto nla_put_failure;
41ade00f 2087
e31b8213
JB		 2088 if (pairwise && mac_addr &&
2089 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2090 return -ENOENT;
2091
2092 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
2093 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 2094
2095 if (err)
6c95e2a2 2096 goto free_msg;
41ade00f
JB		 2097
2098 if (cookie.error)
2099 goto nla_put_failure;
2100
2101 genlmsg_end(msg, hdr);
4c476991 2102 return genlmsg_reply(msg, info);
41ade00f
JB		 2103
2104 nla_put_failure:
2105 err = -ENOBUFS;
6c95e2a2 2106 free_msg:
41ade00f 2107 nlmsg_free(msg);
41ade00f
JB		 2108 return err;
2109}
2110
2111static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2112{
4c476991 2113 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2114 struct key_parse key;
41ade00f 2115 int err;
4c476991 2116 struct net_device *dev = info->user_ptr[1];
41ade00f 2117
b9454e83
JB		 2118 err = nl80211_parse_key(info, &key);
2119 if (err)
2120 return err;
41ade00f 2121
b9454e83 2122 if (key.idx < 0)
41ade00f
JB		 2123 return -EINVAL;
2124
b9454e83
JB		 2125 /* only support setting default key */
2126 if (!key.def && !key.defmgmt)
41ade00f
JB		 2127 return -EINVAL;
2128
dbd2fd65 2129 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2130
dbd2fd65
JB		 2131 if (key.def) {
2132 if (!rdev->ops->set_default_key) {
2133 err = -EOPNOTSUPP;
2134 goto out;
2135 }
41ade00f 2136
dbd2fd65
JB		 2137 err = nl80211_key_allowed(dev->ieee80211_ptr);
2138 if (err)
2139 goto out;
2140
dbd2fd65
JB		 2141 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
2142 key.def_uni, key.def_multi);
2143
2144 if (err)
2145 goto out;
fffd0934 2146
3d23e349 2147#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2148 dev->ieee80211_ptr->wext.default_key = key.idx;
2149#endif
2150 } else {
2151 if (key.def_uni || !key.def_multi) {
2152 err = -EINVAL;
2153 goto out;
2154 }
2155
2156 if (!rdev->ops->set_default_mgmt_key) {
2157 err = -EOPNOTSUPP;
2158 goto out;
2159 }
2160
2161 err = nl80211_key_allowed(dev->ieee80211_ptr);
2162 if (err)
2163 goto out;
2164
2165 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
2166 dev, key.idx);
2167 if (err)
2168 goto out;
2169
2170#ifdef CONFIG_CFG80211_WEXT
2171 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2172#endif
dbd2fd65
JB		 2173 }
2174
2175 out:
fffd0934 2176 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2177
41ade00f
JB		 2178 return err;
2179}
2180
2181static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2182{
4c476991 2183 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2184 int err;
4c476991 2185 struct net_device *dev = info->user_ptr[1];
b9454e83 2186 struct key_parse key;
e31b8213 2187 const u8 *mac_addr = NULL;
41ade00f 2188
b9454e83
JB		 2189 err = nl80211_parse_key(info, &key);
2190 if (err)
2191 return err;
41ade00f 2192
b9454e83 2193 if (!key.p.key)
41ade00f
JB		 2194 return -EINVAL;
2195
41ade00f
JB		 2196 if (info->attrs[NL80211_ATTR_MAC])
2197 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2198
e31b8213
JB		 2199 if (key.type == -1) {
2200 if (mac_addr)
2201 key.type = NL80211_KEYTYPE_PAIRWISE;
2202 else
2203 key.type = NL80211_KEYTYPE_GROUP;
2204 }
2205
2206 /* for now */
2207 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2208 key.type != NL80211_KEYTYPE_GROUP)
2209 return -EINVAL;
2210
4c476991
JB		 2211 if (!rdev->ops->add_key)
2212 return -EOPNOTSUPP;
25e47c18 2213
e31b8213
JB		 2214 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2215 key.type == NL80211_KEYTYPE_PAIRWISE,
2216 mac_addr))
4c476991 2217 return -EINVAL;
41ade00f 2218
fffd0934
JB		 2219 wdev_lock(dev->ieee80211_ptr);
2220 err = nl80211_key_allowed(dev->ieee80211_ptr);
2221 if (!err)
2222 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 2223 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 2224 mac_addr, &key.p);
2225 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2226
41ade00f
JB		 2227 return err;
2228}
2229
2230static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2231{
4c476991 2232 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2233 int err;
4c476991 2234 struct net_device *dev = info->user_ptr[1];
41ade00f 2235 u8 *mac_addr = NULL;
b9454e83 2236 struct key_parse key;
41ade00f 2237
b9454e83
JB		 2238 err = nl80211_parse_key(info, &key);
2239 if (err)
2240 return err;
41ade00f
JB		 2241
2242 if (info->attrs[NL80211_ATTR_MAC])
2243 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2244
e31b8213
JB		 2245 if (key.type == -1) {
2246 if (mac_addr)
2247 key.type = NL80211_KEYTYPE_PAIRWISE;
2248 else
2249 key.type = NL80211_KEYTYPE_GROUP;
2250 }
2251
2252 /* for now */
2253 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2254 key.type != NL80211_KEYTYPE_GROUP)
2255 return -EINVAL;
2256
4c476991
JB		 2257 if (!rdev->ops->del_key)
2258 return -EOPNOTSUPP;
41ade00f 2259
fffd0934
JB		 2260 wdev_lock(dev->ieee80211_ptr);
2261 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2262
2263 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2264 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2265 err = -ENOENT;
2266
fffd0934 2267 if (!err)
e31b8213
JB		 2268 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2269 key.type == NL80211_KEYTYPE_PAIRWISE,
2270 mac_addr);
41ade00f 2271
3d23e349 2272#ifdef CONFIG_CFG80211_WEXT
08645126 2273 if (!err) {
b9454e83 2274 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2275 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2276 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2277 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2278 }
2279#endif
fffd0934 2280 wdev_unlock(dev->ieee80211_ptr);
08645126 2281
41ade00f
JB		 2282 return err;
2283}
2284
8860020e
JB		 2285static int nl80211_parse_beacon(struct genl_info *info,
2286 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2287{
8860020e 2288 bool haveinfo = false;
ed1b6cc7 2289
9946ecfb
JM		 2290 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2291 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2292 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2293 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2294 return -EINVAL;
2295
8860020e 2296 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2297
ed1b6cc7 2298 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2299 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2300 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2301 if (!bcn->head_len)
2302 return -EINVAL;
2303 haveinfo = true;
ed1b6cc7
JB		 2304 }
2305
2306 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2307 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2308 bcn->tail_len =
ed1b6cc7 2309 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2310 haveinfo = true;
ed1b6cc7
JB		 2311 }
2312
4c476991
JB		 2313 if (!haveinfo)
2314 return -EINVAL;
3b85875a 2315
9946ecfb 2316 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2317 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2318 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2319 }
2320
2321 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2322 bcn->proberesp_ies =
9946ecfb 2323 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2324 bcn->proberesp_ies_len =
9946ecfb
JM		 2325 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2326 }
2327
2328 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2329 bcn->assocresp_ies =
9946ecfb 2330 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2331 bcn->assocresp_ies_len =
9946ecfb
JM		 2332 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2333 }
2334
00f740e1 2335 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2336 bcn->probe_resp =
00f740e1 2337 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2338 bcn->probe_resp_len =
00f740e1
AN		 2339 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2340 }
2341
8860020e
JB		 2342 return 0;
2343}
2344
46c1dd0c
FF		 2345static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2346 struct cfg80211_ap_settings *params)
2347{
2348 struct wireless_dev *wdev;
2349 bool ret = false;
2350
2351 mutex_lock(&rdev->devlist_mtx);
2352
2353 list_for_each_entry(wdev, &rdev->netdev_list, list) {
2354 if (wdev->iftype != NL80211_IFTYPE_AP &&
2355 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2356 continue;
2357
2358 if (!wdev->preset_chan)
2359 continue;
2360
2361 params->channel = wdev->preset_chan;
2362 params->channel_type = wdev->preset_chantype;
2363 ret = true;
2364 break;
2365 }
2366
2367 mutex_unlock(&rdev->devlist_mtx);
2368
2369 return ret;
2370}
2371
8860020e
JB		 2372static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2373{
2374 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2375 struct net_device *dev = info->user_ptr[1];
2376 struct wireless_dev *wdev = dev->ieee80211_ptr;
2377 struct cfg80211_ap_settings params;
2378 int err;
2379
2380 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2381 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2382 return -EOPNOTSUPP;
2383
2384 if (!rdev->ops->start_ap)
2385 return -EOPNOTSUPP;
2386
2387 if (wdev->beacon_interval)
2388 return -EALREADY;
2389
2390 memset(&params, 0, sizeof(params));
2391
2392 /* these are required for START_AP */
2393 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2394 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2395 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2396 return -EINVAL;
2397
2398 err = nl80211_parse_beacon(info, &params.beacon);
2399 if (err)
2400 return err;
2401
2402 params.beacon_interval =
2403 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2404 params.dtim_period =
2405 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2406
2407 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2408 if (err)
2409 return err;
2410
2411 /*
2412 * In theory, some of these attributes should be required here
2413 * but since they were not used when the command was originally
2414 * added, keep them optional for old user space programs to let
2415 * them continue to work with drivers that do not need the
2416 * additional information -- drivers must check!
2417 */
2418 if (info->attrs[NL80211_ATTR_SSID]) {
2419 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2420 params.ssid_len =
2421 nla_len(info->attrs[NL80211_ATTR_SSID]);
2422 if (params.ssid_len == 0 ||
2423 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2424 return -EINVAL;
2425 }
2426
2427 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2428 params.hidden_ssid = nla_get_u32(
2429 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2430 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2431 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2432 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2433 return -EINVAL;
2434 }
2435
2436 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2437
2438 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2439 params.auth_type = nla_get_u32(
2440 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2441 if (!nl80211_valid_auth_type(params.auth_type))
2442 return -EINVAL;
2443 } else
2444 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2445
2446 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2447 NL80211_MAX_NR_CIPHER_SUITES);
2448 if (err)
2449 return err;
2450
1b658f11
VT		 2451 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2452 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2453 return -EOPNOTSUPP;
2454 params.inactivity_timeout = nla_get_u16(
2455 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2456 }
2457
aa430da4
JB		 2458 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2459 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2460
2461 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2462 !nl80211_valid_channel_type(info, &channel_type))
2463 return -EINVAL;
2464
2465 params.channel = rdev_freq_to_chan(rdev,
2466 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2467 channel_type);
2468 if (!params.channel)
2469 return -EINVAL;
2470 params.channel_type = channel_type;
2471 } else if (wdev->preset_chan) {
2472 params.channel = wdev->preset_chan;
2473 params.channel_type = wdev->preset_chantype;
46c1dd0c 2474 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 2475 return -EINVAL;
2476
2477 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2478 params.channel_type))
2479 return -EINVAL;
2480
e4e32459
MK		 2481 mutex_lock(&rdev->devlist_mtx);
2482 err = cfg80211_can_use_chan(rdev, wdev, params.channel,
2483 CHAN_MODE_SHARED);
2484 mutex_unlock(&rdev->devlist_mtx);
2485
2486 if (err)
2487 return err;
2488
8860020e 2489 err = rdev->ops->start_ap(&rdev->wiphy, dev, &params);
46c1dd0c
FF		 2490 if (!err) {
2491 wdev->preset_chan = params.channel;
2492 wdev->preset_chantype = params.channel_type;
8860020e 2493 wdev->beacon_interval = params.beacon_interval;
f4489ebe 2494 wdev->channel = params.channel;
46c1dd0c 2495 }
56d1893d 2496 return err;
ed1b6cc7
JB		 2497}
2498
8860020e
JB		 2499static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2500{
2501 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2502 struct net_device *dev = info->user_ptr[1];
2503 struct wireless_dev *wdev = dev->ieee80211_ptr;
2504 struct cfg80211_beacon_data params;
2505 int err;
2506
2507 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2508 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2509 return -EOPNOTSUPP;
2510
2511 if (!rdev->ops->change_beacon)
2512 return -EOPNOTSUPP;
2513
2514 if (!wdev->beacon_interval)
2515 return -EINVAL;
2516
2517 err = nl80211_parse_beacon(info, &params);
2518 if (err)
2519 return err;
2520
2521 return rdev->ops->change_beacon(&rdev->wiphy, dev, &params);
2522}
2523
2524static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 2525{
4c476991
JB		 2526 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2527 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 2528
60771780 2529 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 2530}
2531
5727ef1b
JB		 2532static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2533 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2534 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2535 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2536 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2537 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2538 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2539};
2540
eccb8e8f 2541static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2542 enum nl80211_iftype iftype,
eccb8e8f 2543 struct station_parameters *params)
5727ef1b
JB		 2544{
2545 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2546 struct nlattr *nla;
5727ef1b
JB		 2547 int flag;
2548
eccb8e8f
JB		 2549 /*
2550 * Try parsing the new attribute first so userspace
2551 * can specify both for older kernels.
2552 */
2553 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2554 if (nla) {
2555 struct nl80211_sta_flag_update *sta_flags;
2556
2557 sta_flags = nla_data(nla);
2558 params->sta_flags_mask = sta_flags->mask;
2559 params->sta_flags_set = sta_flags->set;
2560 if ((params->sta_flags_mask |
2561 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2562 return -EINVAL;
2563 return 0;
2564 }
2565
2566 /* if present, parse the old attribute */
5727ef1b 2567
eccb8e8f 2568 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2569 if (!nla)
2570 return 0;
2571
2572 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2573 nla, sta_flags_policy))
2574 return -EINVAL;
2575
bdd3ae3d
JB		 2576 /*
2577 * Only allow certain flags for interface types so that
2578 * other attributes are silently ignored. Remember that
2579 * this is backward compatibility code with old userspace
2580 * and shouldn't be hit in other cases anyway.
2581 */
2582 switch (iftype) {
2583 case NL80211_IFTYPE_AP:
2584 case NL80211_IFTYPE_AP_VLAN:
2585 case NL80211_IFTYPE_P2P_GO:
2586 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2587 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2588 BIT(NL80211_STA_FLAG_WME) |
2589 BIT(NL80211_STA_FLAG_MFP);
2590 break;
2591 case NL80211_IFTYPE_P2P_CLIENT:
2592 case NL80211_IFTYPE_STATION:
2593 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2594 BIT(NL80211_STA_FLAG_TDLS_PEER);
2595 break;
2596 case NL80211_IFTYPE_MESH_POINT:
2597 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2598 BIT(NL80211_STA_FLAG_MFP) |
2599 BIT(NL80211_STA_FLAG_AUTHORIZED);
2600 default:
2601 return -EINVAL;
2602 }
5727ef1b 2603
3383b5a6
JB		 2604 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2605 if (flags[flag]) {
eccb8e8f 2606 params->sta_flags_set |= (1<<flag);
5727ef1b 2607
3383b5a6
JB		 2608 /* no longer support new API additions in old API */
2609 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2610 return -EINVAL;
2611 }
2612 }
2613
5727ef1b
JB		 2614 return 0;
2615}
2616
c8dcfd8a
FF		 2617static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2618 int attr)
2619{
2620 struct nlattr *rate;
2621 u16 bitrate;
2622
2623 rate = nla_nest_start(msg, attr);
2624 if (!rate)
2625 goto nla_put_failure;
2626
2627 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2628 bitrate = cfg80211_calculate_bitrate(info);
9360ffd1
DM		 2629 if ((bitrate > 0 &&
2630 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate)) ||
2631 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2632 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2633 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2634 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2635 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2636 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2637 goto nla_put_failure;
c8dcfd8a
FF		 2638
2639 nla_nest_end(msg, rate);
2640 return true;
2641
2642nla_put_failure:
2643 return false;
2644}
2645
fd5b74dc 2646static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
66266b3a
JL		 2647 int flags,
2648 struct cfg80211_registered_device *rdev,
2649 struct net_device *dev,
98b62183 2650 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2651{
2652 void *hdr;
f4263c98 2653 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2654
2655 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2656 if (!hdr)
2657 return -1;
2658
9360ffd1
DM		 2659 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2660 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2661 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2662 goto nla_put_failure;
f5ea9120 2663
2ec600d6
LCC		 2664 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2665 if (!sinfoattr)
fd5b74dc 2666 goto nla_put_failure;
9360ffd1
DM		 2667 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2668 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2669 sinfo->connected_time))
2670 goto nla_put_failure;
2671 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2672 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2673 sinfo->inactive_time))
2674 goto nla_put_failure;
2675 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2676 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2677 sinfo->rx_bytes))
2678 goto nla_put_failure;
2679 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2680 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2681 sinfo->tx_bytes))
2682 goto nla_put_failure;
2683 if ((sinfo->filled & STATION_INFO_LLID) &&
2684 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2685 goto nla_put_failure;
2686 if ((sinfo->filled & STATION_INFO_PLID) &&
2687 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2688 goto nla_put_failure;
2689 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2690 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2691 sinfo->plink_state))
2692 goto nla_put_failure;
66266b3a
JL		 2693 switch (rdev->wiphy.signal_type) {
2694 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 2695 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2696 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2697 sinfo->signal))
2698 goto nla_put_failure;
2699 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2700 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2701 sinfo->signal_avg))
2702 goto nla_put_failure;
66266b3a
JL		 2703 break;
2704 default:
2705 break;
2706 }
420e7fab 2707 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2708 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2709 NL80211_STA_INFO_TX_BITRATE))
2710 goto nla_put_failure;
2711 }
2712 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2713 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2714 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2715 goto nla_put_failure;
420e7fab 2716 }
9360ffd1
DM		 2717 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2718 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2719 sinfo->rx_packets))
2720 goto nla_put_failure;
2721 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2722 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2723 sinfo->tx_packets))
2724 goto nla_put_failure;
2725 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2726 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2727 sinfo->tx_retries))
2728 goto nla_put_failure;
2729 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2730 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2731 sinfo->tx_failed))
2732 goto nla_put_failure;
2733 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2734 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2735 sinfo->beacon_loss_count))
2736 goto nla_put_failure;
f4263c98
PS		 2737 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2738 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2739 if (!bss_param)
2740 goto nla_put_failure;
2741
9360ffd1
DM		 2742 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2743 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2744 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2745 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2746 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2747 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2748 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2749 sinfo->bss_param.dtim_period) ||
2750 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2751 sinfo->bss_param.beacon_interval))
2752 goto nla_put_failure;
f4263c98
PS		 2753
2754 nla_nest_end(msg, bss_param);
2755 }
9360ffd1
DM		 2756 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2757 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2758 sizeof(struct nl80211_sta_flag_update),
2759 &sinfo->sta_flags))
2760 goto nla_put_failure;
7eab0f64
JL		 2761 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2762 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2763 sinfo->t_offset))
2764 goto nla_put_failure;
2ec600d6 2765 nla_nest_end(msg, sinfoattr);
fd5b74dc 2766
9360ffd1
DM		 2767 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2768 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2769 sinfo->assoc_req_ies))
2770 goto nla_put_failure;
50d3dfb7 2771
fd5b74dc
JB		 2772 return genlmsg_end(msg, hdr);
2773
2774 nla_put_failure:
bc3ed28c
TG		 2775 genlmsg_cancel(msg, hdr);
2776 return -EMSGSIZE;
fd5b74dc
JB		 2777}
2778
2ec600d6 2779static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2780 struct netlink_callback *cb)
2ec600d6 2781{
2ec600d6
LCC		 2782 struct station_info sinfo;
2783 struct cfg80211_registered_device *dev;
bba95fef 2784 struct net_device *netdev;
2ec600d6 2785 u8 mac_addr[ETH_ALEN];
bba95fef 2786 int sta_idx = cb->args[1];
2ec600d6 2787 int err;
2ec600d6 2788
67748893
JB		 2789 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2790 if (err)
2791 return err;
bba95fef
JB		 2792
2793 if (!dev->ops->dump_station) {
eec60b03 2794 err = -EOPNOTSUPP;
bba95fef
JB		 2795 goto out_err;
2796 }
2797
bba95fef 2798 while (1) {
f612cedf 2799 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2800 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2801 mac_addr, &sinfo);
2802 if (err == -ENOENT)
2803 break;
2804 if (err)
3b85875a 2805 goto out_err;
bba95fef
JB		 2806
2807 if (nl80211_send_station(skb,
2808 NETLINK_CB(cb->skb).pid,
2809 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 2810 dev, netdev, mac_addr,
bba95fef
JB		 2811 &sinfo) < 0)
2812 goto out;
2813
2814 sta_idx++;
2815 }
2816
2817
2818 out:
2819 cb->args[1] = sta_idx;
2820 err = skb->len;
bba95fef 2821 out_err:
67748893 2822 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2823
2824 return err;
2ec600d6 2825}
fd5b74dc 2826
5727ef1b
JB		 2827static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2828{
4c476991
JB		 2829 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2830 struct net_device *dev = info->user_ptr[1];
2ec600d6 2831 struct station_info sinfo;
fd5b74dc
JB		 2832 struct sk_buff *msg;
2833 u8 *mac_addr = NULL;
4c476991 2834 int err;
fd5b74dc 2835
2ec600d6 2836 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2837
2838 if (!info->attrs[NL80211_ATTR_MAC])
2839 return -EINVAL;
2840
2841 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2842
4c476991
JB		 2843 if (!rdev->ops->get_station)
2844 return -EOPNOTSUPP;
3b85875a 2845
4c476991 2846 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2847 if (err)
4c476991 2848 return err;
2ec600d6 2849
fd2120ca 2850 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2851 if (!msg)
4c476991 2852 return -ENOMEM;
fd5b74dc
JB		 2853
2854 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
66266b3a 2855 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 2856 nlmsg_free(msg);
2857 return -ENOBUFS;
2858 }
3b85875a 2859
4c476991 2860 return genlmsg_reply(msg, info);
5727ef1b
JB		 2861}
2862
2863/*
c258d2de 2864 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2865 */
80b99899
JB		 2866static struct net_device *get_vlan(struct genl_info *info,
2867 struct cfg80211_registered_device *rdev)
5727ef1b 2868{
463d0183 2869 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 2870 struct net_device *v;
2871 int ret;
2872
2873 if (!vlanattr)
2874 return NULL;
2875
2876 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2877 if (!v)
2878 return ERR_PTR(-ENODEV);
2879
2880 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2881 ret = -EINVAL;
2882 goto error;
5727ef1b 2883 }
80b99899
JB		 2884
2885 if (!netif_running(v)) {
2886 ret = -ENETDOWN;
2887 goto error;
2888 }
2889
2890 return v;
2891 error:
2892 dev_put(v);
2893 return ERR_PTR(ret);
5727ef1b
JB		 2894}
2895
2896static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2897{
4c476991 2898 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2899 int err;
4c476991 2900 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2901 struct station_parameters params;
2902 u8 *mac_addr = NULL;
2903
2904 memset(&params, 0, sizeof(params));
2905
2906 params.listen_interval = -1;
57cf8043 2907 params.plink_state = -1;
5727ef1b
JB		 2908
2909 if (info->attrs[NL80211_ATTR_STA_AID])
2910 return -EINVAL;
2911
2912 if (!info->attrs[NL80211_ATTR_MAC])
2913 return -EINVAL;
2914
2915 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2916
2917 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2918 params.supported_rates =
2919 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2920 params.supported_rates_len =
2921 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2922 }
2923
2924 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2925 params.listen_interval =
2926 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2927
36aedc90
JM		 2928 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2929 params.ht_capa =
2930 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2931
bdd90d5e
JB		 2932 if (!rdev->ops->change_station)
2933 return -EOPNOTSUPP;
2934
bdd3ae3d 2935 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 2936 return -EINVAL;
2937
2ec600d6
LCC		 2938 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2939 params.plink_action =
2940 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2941
9c3990aa
JC		 2942 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2943 params.plink_state =
2944 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2945
a97f4424
JB		 2946 switch (dev->ieee80211_ptr->iftype) {
2947 case NL80211_IFTYPE_AP:
2948 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2949 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2950 /* disallow mesh-specific things */
2951 if (params.plink_action)
bdd90d5e
JB		 2952 return -EINVAL;
2953
2954 /* TDLS can't be set, ... */
2955 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2956 return -EINVAL;
2957 /*
2958 * ... but don't bother the driver with it. This works around
2959 * a hostapd/wpa_supplicant issue -- it always includes the
2960 * TLDS_PEER flag in the mask even for AP mode.
2961 */
2962 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2963
2964 /* accept only the listed bits */
2965 if (params.sta_flags_mask &
2966 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2967 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2968 BIT(NL80211_STA_FLAG_WME) |
2969 BIT(NL80211_STA_FLAG_MFP)))
2970 return -EINVAL;
2971
2972 /* must be last in here for error handling */
2973 params.vlan = get_vlan(info, rdev);
2974 if (IS_ERR(params.vlan))
2975 return PTR_ERR(params.vlan);
a97f4424 2976 break;
074ac8df 2977 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 2978 case NL80211_IFTYPE_STATION:
bdd90d5e
JB		 2979 /*
2980 * Don't allow userspace to change the TDLS_PEER flag,
2981 * but silently ignore attempts to change it since we
2982 * don't have state here to verify that it doesn't try
2983 * to change the flag.
2984 */
2985 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
267335d6
AQ		 2986 /* fall through */
2987 case NL80211_IFTYPE_ADHOC:
2988 /* disallow things sta doesn't support */
2989 if (params.plink_action)
2990 return -EINVAL;
2991 if (params.ht_capa)
2992 return -EINVAL;
2993 if (params.listen_interval >= 0)
2994 return -EINVAL;
bdd90d5e
JB		 2995 /* reject any changes other than AUTHORIZED */
2996 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2997 return -EINVAL;
a97f4424
JB		 2998 break;
2999 case NL80211_IFTYPE_MESH_POINT:
3000 /* disallow things mesh doesn't support */
3001 if (params.vlan)
bdd90d5e 3002 return -EINVAL;
a97f4424 3003 if (params.ht_capa)
bdd90d5e 3004 return -EINVAL;
a97f4424 3005 if (params.listen_interval >= 0)
bdd90d5e
JB		 3006 return -EINVAL;
3007 /*
3008 * No special handling for TDLS here -- the userspace
3009 * mesh code doesn't have this bug.
3010 */
b39c48fa
JC		 3011 if (params.sta_flags_mask &
3012 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 3013 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 3014 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 3015 return -EINVAL;
a97f4424
JB		 3016 break;
3017 default:
bdd90d5e 3018 return -EOPNOTSUPP;
034d655e
JB		 3019 }
3020
bdd90d5e 3021 /* be aware of params.vlan when changing code here */
5727ef1b 3022
79c97e97 3023 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 3024
5727ef1b
JB		 3025 if (params.vlan)
3026 dev_put(params.vlan);
3b85875a 3027
5727ef1b
JB		 3028 return err;
3029}
3030
c75786c9
EP		 3031static struct nla_policy
3032nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3033 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3034 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3035};
3036
5727ef1b
JB		 3037static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3038{
4c476991 3039 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3040 int err;
4c476991 3041 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3042 struct station_parameters params;
3043 u8 *mac_addr = NULL;
3044
3045 memset(&params, 0, sizeof(params));
3046
3047 if (!info->attrs[NL80211_ATTR_MAC])
3048 return -EINVAL;
3049
5727ef1b
JB		 3050 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3051 return -EINVAL;
3052
3053 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3054 return -EINVAL;
3055
0e956c13
TLSC		 3056 if (!info->attrs[NL80211_ATTR_STA_AID])
3057 return -EINVAL;
3058
5727ef1b
JB		 3059 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3060 params.supported_rates =
3061 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3062 params.supported_rates_len =
3063 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3064 params.listen_interval =
3065 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3066
0e956c13
TLSC		 3067 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3068 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3069 return -EINVAL;
51b50fbe 3070
36aedc90
JM		 3071 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3072 params.ht_capa =
3073 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3074
96b78dff
JC		 3075 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3076 params.plink_action =
3077 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3078
bdd90d5e
JB		 3079 if (!rdev->ops->add_station)
3080 return -EOPNOTSUPP;
3081
bdd3ae3d 3082 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3083 return -EINVAL;
3084
bdd90d5e
JB		 3085 switch (dev->ieee80211_ptr->iftype) {
3086 case NL80211_IFTYPE_AP:
3087 case NL80211_IFTYPE_AP_VLAN:
3088 case NL80211_IFTYPE_P2P_GO:
3089 /* parse WME attributes if sta is WME capable */
3090 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3091 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3092 info->attrs[NL80211_ATTR_STA_WME]) {
3093 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3094 struct nlattr *nla;
3095
3096 nla = info->attrs[NL80211_ATTR_STA_WME];
3097 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3098 nl80211_sta_wme_policy);
3099 if (err)
3100 return err;
3101
3102 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3103 params.uapsd_queues =
3104 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3105 if (params.uapsd_queues &
3106 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3107 return -EINVAL;
c75786c9 3108
bdd90d5e
JB		 3109 if (tb[NL80211_STA_WME_MAX_SP])
3110 params.max_sp =
3111 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 3112
bdd90d5e
JB		 3113 if (params.max_sp &
3114 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3115 return -EINVAL;
4319e193 3116
bdd90d5e
JB		 3117 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3118 }
3119 /* TDLS peers cannot be added */
3120 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 3121 return -EINVAL;
bdd90d5e
JB		 3122 /* but don't bother the driver with it */
3123 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 3124
bdd90d5e
JB		 3125 /* must be last in here for error handling */
3126 params.vlan = get_vlan(info, rdev);
3127 if (IS_ERR(params.vlan))
3128 return PTR_ERR(params.vlan);
3129 break;
3130 case NL80211_IFTYPE_MESH_POINT:
3131 /* TDLS peers cannot be added */
3132 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3133 return -EINVAL;
3134 break;
3135 case NL80211_IFTYPE_STATION:
3136 /* Only TDLS peers can be added */
3137 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3138 return -EINVAL;
3139 /* Can only add if TDLS ... */
3140 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3141 return -EOPNOTSUPP;
3142 /* ... with external setup is supported */
3143 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3144 return -EOPNOTSUPP;
3145 break;
3146 default:
3147 return -EOPNOTSUPP;
c75786c9
EP		 3148 }
3149
bdd90d5e 3150 /* be aware of params.vlan when changing code here */
5727ef1b 3151
79c97e97 3152 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 3153
5727ef1b
JB		 3154 if (params.vlan)
3155 dev_put(params.vlan);
5727ef1b
JB		 3156 return err;
3157}
3158
3159static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3160{
4c476991
JB		 3161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3162 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3163 u8 *mac_addr = NULL;
3164
3165 if (info->attrs[NL80211_ATTR_MAC])
3166 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3167
e80cf853 3168 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 3169 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 3170 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 3171 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3172 return -EINVAL;
5727ef1b 3173
4c476991
JB		 3174 if (!rdev->ops->del_station)
3175 return -EOPNOTSUPP;
3b85875a 3176
4c476991 3177 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 3178}
3179
2ec600d6
LCC		 3180static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
3181 int flags, struct net_device *dev,
3182 u8 *dst, u8 *next_hop,
3183 struct mpath_info *pinfo)
3184{
3185 void *hdr;
3186 struct nlattr *pinfoattr;
3187
3188 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
3189 if (!hdr)
3190 return -1;
3191
9360ffd1
DM		 3192 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3193 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3194 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3195 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3196 goto nla_put_failure;
f5ea9120 3197
2ec600d6
LCC		 3198 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3199 if (!pinfoattr)
3200 goto nla_put_failure;
9360ffd1
DM		 3201 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3202 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3203 pinfo->frame_qlen))
3204 goto nla_put_failure;
3205 if (((pinfo->filled & MPATH_INFO_SN) &&
3206 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3207 ((pinfo->filled & MPATH_INFO_METRIC) &&
3208 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3209 pinfo->metric)) ||
3210 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3211 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3212 pinfo->exptime)) ||
3213 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3214 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3215 pinfo->flags)) ||
3216 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3217 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3218 pinfo->discovery_timeout)) ||
3219 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3220 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3221 pinfo->discovery_retries)))
3222 goto nla_put_failure;
2ec600d6
LCC		 3223
3224 nla_nest_end(msg, pinfoattr);
3225
3226 return genlmsg_end(msg, hdr);
3227
3228 nla_put_failure:
bc3ed28c
TG		 3229 genlmsg_cancel(msg, hdr);
3230 return -EMSGSIZE;
2ec600d6
LCC		 3231}
3232
3233static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 3234 struct netlink_callback *cb)
2ec600d6 3235{
2ec600d6
LCC		 3236 struct mpath_info pinfo;
3237 struct cfg80211_registered_device *dev;
bba95fef 3238 struct net_device *netdev;
2ec600d6
LCC		 3239 u8 dst[ETH_ALEN];
3240 u8 next_hop[ETH_ALEN];
bba95fef 3241 int path_idx = cb->args[1];
2ec600d6 3242 int err;
2ec600d6 3243
67748893
JB		 3244 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3245 if (err)
3246 return err;
bba95fef
JB		 3247
3248 if (!dev->ops->dump_mpath) {
eec60b03 3249 err = -EOPNOTSUPP;
bba95fef
JB		 3250 goto out_err;
3251 }
3252
eec60b03
JM		 3253 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3254 err = -EOPNOTSUPP;
0448b5fc 3255 goto out_err;
eec60b03
JM		 3256 }
3257
bba95fef
JB		 3258 while (1) {
3259 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3260 dst, next_hop, &pinfo);
3261 if (err == -ENOENT)
2ec600d6 3262 break;
bba95fef 3263 if (err)
3b85875a 3264 goto out_err;
2ec600d6 3265
bba95fef
JB		 3266 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3267 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3268 netdev, dst, next_hop,
3269 &pinfo) < 0)
3270 goto out;
2ec600d6 3271
bba95fef 3272 path_idx++;
2ec600d6 3273 }
2ec600d6 3274
2ec600d6 3275
bba95fef
JB		 3276 out:
3277 cb->args[1] = path_idx;
3278 err = skb->len;
bba95fef 3279 out_err:
67748893 3280 nl80211_finish_netdev_dump(dev);
bba95fef 3281 return err;
2ec600d6
LCC		 3282}
3283
3284static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3285{
4c476991 3286 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3287 int err;
4c476991 3288 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3289 struct mpath_info pinfo;
3290 struct sk_buff *msg;
3291 u8 *dst = NULL;
3292 u8 next_hop[ETH_ALEN];
3293
3294 memset(&pinfo, 0, sizeof(pinfo));
3295
3296 if (!info->attrs[NL80211_ATTR_MAC])
3297 return -EINVAL;
3298
3299 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3300
4c476991
JB		 3301 if (!rdev->ops->get_mpath)
3302 return -EOPNOTSUPP;
2ec600d6 3303
4c476991
JB		 3304 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3305 return -EOPNOTSUPP;
eec60b03 3306
79c97e97 3307 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 3308 if (err)
4c476991 3309 return err;
2ec600d6 3310
fd2120ca 3311 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3312 if (!msg)
4c476991 3313 return -ENOMEM;
2ec600d6
LCC		 3314
3315 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 3316 dev, dst, next_hop, &pinfo) < 0) {
3317 nlmsg_free(msg);
3318 return -ENOBUFS;
3319 }
3b85875a 3320
4c476991 3321 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3322}
3323
3324static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3325{
4c476991
JB		 3326 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3327 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3328 u8 *dst = NULL;
3329 u8 *next_hop = NULL;
3330
3331 if (!info->attrs[NL80211_ATTR_MAC])
3332 return -EINVAL;
3333
3334 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3335 return -EINVAL;
3336
3337 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3338 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3339
4c476991
JB		 3340 if (!rdev->ops->change_mpath)
3341 return -EOPNOTSUPP;
35a8efe1 3342
4c476991
JB		 3343 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3344 return -EOPNOTSUPP;
2ec600d6 3345
4c476991 3346 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 3347}
4c476991 3348
2ec600d6
LCC		 3349static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3350{
4c476991
JB		 3351 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3352 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3353 u8 *dst = NULL;
3354 u8 *next_hop = NULL;
3355
3356 if (!info->attrs[NL80211_ATTR_MAC])
3357 return -EINVAL;
3358
3359 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3360 return -EINVAL;
3361
3362 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3363 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3364
4c476991
JB		 3365 if (!rdev->ops->add_mpath)
3366 return -EOPNOTSUPP;
35a8efe1 3367
4c476991
JB		 3368 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3369 return -EOPNOTSUPP;
2ec600d6 3370
4c476991 3371 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 3372}
3373
3374static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3375{
4c476991
JB		 3376 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3377 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3378 u8 *dst = NULL;
3379
3380 if (info->attrs[NL80211_ATTR_MAC])
3381 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3382
4c476991
JB		 3383 if (!rdev->ops->del_mpath)
3384 return -EOPNOTSUPP;
3b85875a 3385
4c476991 3386 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 3387}
3388
9f1ba906
JM		 3389static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3390{
4c476991
JB		 3391 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3392 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3393 struct bss_parameters params;
3394
3395 memset(&params, 0, sizeof(params));
3396 /* default to not changing parameters */
3397 params.use_cts_prot = -1;
3398 params.use_short_preamble = -1;
3399 params.use_short_slot_time = -1;
fd8aaaf3 3400 params.ap_isolate = -1;
50b12f59 3401 params.ht_opmode = -1;
9f1ba906
JM		 3402
3403 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3404 params.use_cts_prot =
3405 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3406 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3407 params.use_short_preamble =
3408 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3409 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3410 params.use_short_slot_time =
3411 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3412 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3413 params.basic_rates =
3414 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3415 params.basic_rates_len =
3416 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3417 }
fd8aaaf3
FF		 3418 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3419 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3420 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3421 params.ht_opmode =
3422 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3423
4c476991
JB		 3424 if (!rdev->ops->change_bss)
3425 return -EOPNOTSUPP;
9f1ba906 3426
074ac8df 3427 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3428 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3429 return -EOPNOTSUPP;
3b85875a 3430
4c476991 3431 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 3432}
3433
b54452b0 3434static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3435 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3436 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3437 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3438 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3439 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3440 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3441};
3442
3443static int parse_reg_rule(struct nlattr *tb[],
3444 struct ieee80211_reg_rule *reg_rule)
3445{
3446 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3447 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3448
3449 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3450 return -EINVAL;
3451 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3452 return -EINVAL;
3453 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3454 return -EINVAL;
3455 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3456 return -EINVAL;
3457 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3458 return -EINVAL;
3459
3460 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3461
3462 freq_range->start_freq_khz =
3463 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3464 freq_range->end_freq_khz =
3465 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3466 freq_range->max_bandwidth_khz =
3467 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3468
3469 power_rule->max_eirp =
3470 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3471
3472 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3473 power_rule->max_antenna_gain =
3474 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3475
3476 return 0;
3477}
3478
3479static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3480{
3481 int r;
3482 char *data = NULL;
3483
80778f18
LR		 3484 /*
3485 * You should only get this when cfg80211 hasn't yet initialized
3486 * completely when built-in to the kernel right between the time
3487 * window between nl80211_init() and regulatory_init(), if that is
3488 * even possible.
3489 */
3490 mutex_lock(&cfg80211_mutex);
3491 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3492 mutex_unlock(&cfg80211_mutex);
3493 return -EINPROGRESS;
80778f18 3494 }
fe33eb39 3495 mutex_unlock(&cfg80211_mutex);
80778f18 3496
fe33eb39
LR		 3497 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3498 return -EINVAL;
b2e1b302
LR		 3499
3500 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3501
fe33eb39
LR		 3502 r = regulatory_hint_user(data);
3503
b2e1b302
LR		 3504 return r;
3505}
3506
24bdd9f4 3507static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3508 struct genl_info *info)
93da9cc1 3509{
4c476991 3510 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3511 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3512 struct wireless_dev *wdev = dev->ieee80211_ptr;
3513 struct mesh_config cur_params;
3514 int err = 0;
93da9cc1 3515 void *hdr;
3516 struct nlattr *pinfoattr;
3517 struct sk_buff *msg;
3518
29cbe68c
JB		 3519 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3520 return -EOPNOTSUPP;
3521
24bdd9f4 3522 if (!rdev->ops->get_mesh_config)
4c476991 3523 return -EOPNOTSUPP;
f3f92586 3524
29cbe68c
JB		 3525 wdev_lock(wdev);
3526 /* If not connected, get default parameters */
3527 if (!wdev->mesh_id_len)
3528 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3529 else
24bdd9f4 3530 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3531 &cur_params);
3532 wdev_unlock(wdev);
3533
93da9cc1 3534 if (err)
4c476991 3535 return err;
93da9cc1 3536
3537 /* Draw up a netlink message to send back */
fd2120ca 3538 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3539 if (!msg)
3540 return -ENOMEM;
93da9cc1 3541 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 3542 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3543 if (!hdr)
efe1cf0c 3544 goto out;
24bdd9f4 3545 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3546 if (!pinfoattr)
3547 goto nla_put_failure;
9360ffd1
DM		 3548 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3549 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3550 cur_params.dot11MeshRetryTimeout) ||
3551 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3552 cur_params.dot11MeshConfirmTimeout) ||
3553 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3554 cur_params.dot11MeshHoldingTimeout) ||
3555 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3556 cur_params.dot11MeshMaxPeerLinks) ||
3557 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3558 cur_params.dot11MeshMaxRetries) ||
3559 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3560 cur_params.dot11MeshTTL) ||
3561 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3562 cur_params.element_ttl) ||
3563 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3564 cur_params.auto_open_plinks) ||
7eab0f64
JL		 3565 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3566 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 3567 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3568 cur_params.dot11MeshHWMPmaxPREQretries) ||
3569 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3570 cur_params.path_refresh_time) ||
3571 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3572 cur_params.min_discovery_timeout) ||
3573 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3574 cur_params.dot11MeshHWMPactivePathTimeout) ||
3575 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3576 cur_params.dot11MeshHWMPpreqMinInterval) ||
3577 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3578 cur_params.dot11MeshHWMPperrMinInterval) ||
3579 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3580 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3581 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3582 cur_params.dot11MeshHWMPRootMode) ||
3583 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3584 cur_params.dot11MeshHWMPRannInterval) ||
3585 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3586 cur_params.dot11MeshGateAnnouncementProtocol) ||
3587 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3588 cur_params.dot11MeshForwarding) ||
3589 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 3590 cur_params.rssi_threshold) ||
3591 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3592 cur_params.ht_opmode) ||
3593 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3594 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3595 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3596 cur_params.dot11MeshHWMProotInterval) ||
3597 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3598 cur_params.dot11MeshHWMPconfirmationInterval))
9360ffd1 3599 goto nla_put_failure;
93da9cc1 3600 nla_nest_end(msg, pinfoattr);
3601 genlmsg_end(msg, hdr);
4c476991 3602 return genlmsg_reply(msg, info);
93da9cc1 3603
3b85875a 3604 nla_put_failure:
93da9cc1 3605 genlmsg_cancel(msg, hdr);
efe1cf0c 3606 out:
d080e275 3607 nlmsg_free(msg);
4c476991 3608 return -ENOBUFS;
93da9cc1 3609}
3610
b54452b0 3611static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3612 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3613 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3614 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3615 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3616 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3617 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3618 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3619 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 3620 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 3621 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3622 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3623 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3624 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3625 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3626 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3627 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3628 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3629 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3630 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 3631 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 3632 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3633 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 3634 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3635 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 3636 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3637};
3638
c80d545d
JC		 3639static const struct nla_policy
3640 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 3641 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 3642 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3643 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3644 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3645 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 3646 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3647 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3648};
3649
24bdd9f4 3650static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3651 struct mesh_config *cfg,
3652 u32 *mask_out)
93da9cc1 3653{
93da9cc1 3654 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3655 u32 mask = 0;
93da9cc1 3656
bd90fdcc
JB		 3657#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3658do {\
3659 if (table[attr_num]) {\
3660 cfg->param = nla_fn(table[attr_num]); \
3661 mask |= (1 << (attr_num - 1)); \
3662 } \
3663} while (0);\
3664
3665
24bdd9f4 3666 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3667 return -EINVAL;
3668 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3669 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3670 nl80211_meshconf_params_policy))
93da9cc1 3671 return -EINVAL;
3672
93da9cc1 3673 /* This makes sure that there aren't more than 32 mesh config
3674 * parameters (otherwise our bitfield scheme would not work.) */
3675 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3676
3677 /* Fill in the params struct */
93da9cc1 3678 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
a4f606ea
CYY		 3679 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3680 nla_get_u16);
93da9cc1 3681 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
a4f606ea
CYY		 3682 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3683 nla_get_u16);
93da9cc1 3684 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
a4f606ea
CYY		 3685 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3686 nla_get_u16);
93da9cc1 3687 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
a4f606ea
CYY		 3688 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3689 nla_get_u16);
93da9cc1 3690 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
a4f606ea
CYY		 3691 mask, NL80211_MESHCONF_MAX_RETRIES,
3692 nla_get_u8);
93da9cc1 3693 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
a4f606ea 3694 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21 3695 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
a4f606ea
CYY		 3696 mask, NL80211_MESHCONF_ELEMENT_TTL,
3697 nla_get_u8);
93da9cc1 3698 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
a4f606ea
CYY		 3699 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3700 nla_get_u8);
3701 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3702 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3703 nla_get_u32);
93da9cc1 3704 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
a4f606ea
CYY		 3705 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3706 nla_get_u8);
93da9cc1 3707 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
a4f606ea
CYY		 3708 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3709 nla_get_u32);
93da9cc1 3710 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
a4f606ea
CYY		 3711 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3712 nla_get_u16);
3713 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3714 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3715 nla_get_u32);
93da9cc1 3716 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
a4f606ea
CYY		 3717 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3718 nla_get_u16);
dca7e943 3719 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
a4f606ea
CYY		 3720 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3721 nla_get_u16);
0507e159 3722 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 3723 dot11MeshHWMPnetDiameterTraversalTime, mask,
3724 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3725 nla_get_u16);
3726 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3727 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3728 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3729 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3730 nla_get_u16);
16dd7267 3731 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 3732 dot11MeshGateAnnouncementProtocol, mask,
3733 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3734 nla_get_u8);
94f90656 3735 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
a4f606ea
CYY		 3736 mask, NL80211_MESHCONF_FORWARDING,
3737 nla_get_u8);
55335137 3738 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
a4f606ea
CYY		 3739 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3740 nla_get_u32);
70c33eaa 3741 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
a4f606ea 3742 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3743 nla_get_u16);
3744 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3745 mask,
3746 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3747 nla_get_u32);
3748 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3749 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3750 nla_get_u16);
3751 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3752 dot11MeshHWMPconfirmationInterval, mask,
3753 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 3754 nla_get_u16);
bd90fdcc
JB		 3755 if (mask_out)
3756 *mask_out = mask;
c80d545d 3757
bd90fdcc
JB		 3758 return 0;
3759
3760#undef FILL_IN_MESH_PARAM_IF_SET
3761}
3762
c80d545d
JC		 3763static int nl80211_parse_mesh_setup(struct genl_info *info,
3764 struct mesh_setup *setup)
3765{
3766 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3767
3768 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3769 return -EINVAL;
3770 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3771 info->attrs[NL80211_ATTR_MESH_SETUP],
3772 nl80211_mesh_setup_params_policy))
3773 return -EINVAL;
3774
d299a1f2
JC		 3775 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3776 setup->sync_method =
3777 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3778 IEEE80211_SYNC_METHOD_VENDOR :
3779 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3780
c80d545d
JC		 3781 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3782 setup->path_sel_proto =
3783 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3784 IEEE80211_PATH_PROTOCOL_VENDOR :
3785 IEEE80211_PATH_PROTOCOL_HWMP;
3786
3787 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3788 setup->path_metric =
3789 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3790 IEEE80211_PATH_METRIC_VENDOR :
3791 IEEE80211_PATH_METRIC_AIRTIME;
3792
581a8b0f
JC		 3793
3794 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3795 struct nlattr *ieattr =
581a8b0f 3796 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3797 if (!is_valid_ie_attr(ieattr))
3798 return -EINVAL;
581a8b0f
JC		 3799 setup->ie = nla_data(ieattr);
3800 setup->ie_len = nla_len(ieattr);
c80d545d 3801 }
b130e5ce
JC		 3802 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3803 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3804
3805 return 0;
3806}
3807
24bdd9f4 3808static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3809 struct genl_info *info)
bd90fdcc
JB		 3810{
3811 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3812 struct net_device *dev = info->user_ptr[1];
29cbe68c 3813 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3814 struct mesh_config cfg;
3815 u32 mask;
3816 int err;
3817
29cbe68c
JB		 3818 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3819 return -EOPNOTSUPP;
3820
24bdd9f4 3821 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3822 return -EOPNOTSUPP;
3823
24bdd9f4 3824 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3825 if (err)
3826 return err;
3827
29cbe68c
JB		 3828 wdev_lock(wdev);
3829 if (!wdev->mesh_id_len)
3830 err = -ENOLINK;
3831
3832 if (!err)
24bdd9f4 3833 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3834 mask, &cfg);
3835
3836 wdev_unlock(wdev);
3837
3838 return err;
93da9cc1 3839}
3840
f130347c
LR		 3841static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3842{
3843 struct sk_buff *msg;
3844 void *hdr = NULL;
3845 struct nlattr *nl_reg_rules;
3846 unsigned int i;
3847 int err = -EINVAL;
3848
a1794390 3849 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3850
3851 if (!cfg80211_regdomain)
3852 goto out;
3853
fd2120ca 3854 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3855 if (!msg) {
3856 err = -ENOBUFS;
3857 goto out;
3858 }
3859
3860 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3861 NL80211_CMD_GET_REG);
3862 if (!hdr)
efe1cf0c 3863 goto put_failure;
f130347c 3864
9360ffd1
DM		 3865 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
3866 cfg80211_regdomain->alpha2) ||
3867 (cfg80211_regdomain->dfs_region &&
3868 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
3869 cfg80211_regdomain->dfs_region)))
3870 goto nla_put_failure;
f130347c
LR		 3871
3872 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3873 if (!nl_reg_rules)
3874 goto nla_put_failure;
3875
3876 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3877 struct nlattr *nl_reg_rule;
3878 const struct ieee80211_reg_rule *reg_rule;
3879 const struct ieee80211_freq_range *freq_range;
3880 const struct ieee80211_power_rule *power_rule;
3881
3882 reg_rule = &cfg80211_regdomain->reg_rules[i];
3883 freq_range = &reg_rule->freq_range;
3884 power_rule = &reg_rule->power_rule;
3885
3886 nl_reg_rule = nla_nest_start(msg, i);
3887 if (!nl_reg_rule)
3888 goto nla_put_failure;
3889
9360ffd1
DM		 3890 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3891 reg_rule->flags) ||
3892 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
3893 freq_range->start_freq_khz) ||
3894 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
3895 freq_range->end_freq_khz) ||
3896 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3897 freq_range->max_bandwidth_khz) ||
3898 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3899 power_rule->max_antenna_gain) ||
3900 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3901 power_rule->max_eirp))
3902 goto nla_put_failure;
f130347c
LR		 3903
3904 nla_nest_end(msg, nl_reg_rule);
3905 }
3906
3907 nla_nest_end(msg, nl_reg_rules);
3908
3909 genlmsg_end(msg, hdr);
134e6375 3910 err = genlmsg_reply(msg, info);
f130347c
LR		 3911 goto out;
3912
3913nla_put_failure:
3914 genlmsg_cancel(msg, hdr);
efe1cf0c 3915put_failure:
d080e275 3916 nlmsg_free(msg);
f130347c
LR		 3917 err = -EMSGSIZE;
3918out:
a1794390 3919 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3920 return err;
3921}
3922
b2e1b302
LR		 3923static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3924{
3925 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3926 struct nlattr *nl_reg_rule;
3927 char *alpha2 = NULL;
3928 int rem_reg_rules = 0, r = 0;
3929 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 3930 u8 dfs_region = 0;
b2e1b302
LR		 3931 struct ieee80211_regdomain *rd = NULL;
3932
3933 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3934 return -EINVAL;
3935
3936 if (!info->attrs[NL80211_ATTR_REG_RULES])
3937 return -EINVAL;
3938
3939 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3940
8b60b078
LR		 3941 if (info->attrs[NL80211_ATTR_DFS_REGION])
3942 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3943
b2e1b302
LR		 3944 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3945 rem_reg_rules) {
3946 num_rules++;
3947 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3948 return -EINVAL;
b2e1b302
LR		 3949 }
3950
61405e97
LR		 3951 mutex_lock(&cfg80211_mutex);
3952
d0e18f83
LR		 3953 if (!reg_is_valid_request(alpha2)) {
3954 r = -EINVAL;
3955 goto bad_reg;
3956 }
b2e1b302
LR		 3957
3958 size_of_regd = sizeof(struct ieee80211_regdomain) +
3959 (num_rules * sizeof(struct ieee80211_reg_rule));
3960
3961 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3962 if (!rd) {
3963 r = -ENOMEM;
3964 goto bad_reg;
3965 }
b2e1b302
LR		 3966
3967 rd->n_reg_rules = num_rules;
3968 rd->alpha2[0] = alpha2[0];
3969 rd->alpha2[1] = alpha2[1];
3970
8b60b078
LR		 3971 /*
3972 * Disable DFS master mode if the DFS region was
3973 * not supported or known on this kernel.
3974 */
3975 if (reg_supported_dfs_region(dfs_region))
3976 rd->dfs_region = dfs_region;
3977
b2e1b302
LR		 3978 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3979 rem_reg_rules) {
3980 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3981 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3982 reg_rule_policy);
3983 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3984 if (r)
3985 goto bad_reg;
3986
3987 rule_idx++;
3988
d0e18f83
LR		 3989 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3990 r = -EINVAL;
b2e1b302 3991 goto bad_reg;
d0e18f83 3992 }
b2e1b302
LR		 3993 }
3994
3995 BUG_ON(rule_idx != num_rules);
3996
b2e1b302 3997 r = set_regdom(rd);
61405e97 3998
a1794390 3999 mutex_unlock(&cfg80211_mutex);
d0e18f83 4000
b2e1b302
LR		 4001 return r;
4002
d2372b31 4003 bad_reg:
61405e97 4004 mutex_unlock(&cfg80211_mutex);
b2e1b302 4005 kfree(rd);
d0e18f83 4006 return r;
b2e1b302
LR		 4007}
4008
83f5e2cf
JB		 4009static int validate_scan_freqs(struct nlattr *freqs)
4010{
4011 struct nlattr *attr1, *attr2;
4012 int n_channels = 0, tmp1, tmp2;
4013
4014 nla_for_each_nested(attr1, freqs, tmp1) {
4015 n_channels++;
4016 /*
4017 * Some hardware has a limited channel list for
4018 * scanning, and it is pretty much nonsensical
4019 * to scan for a channel twice, so disallow that
4020 * and don't require drivers to check that the
4021 * channel list they get isn't longer than what
4022 * they can scan, as long as they can scan all
4023 * the channels they registered at once.
4024 */
4025 nla_for_each_nested(attr2, freqs, tmp2)
4026 if (attr1 != attr2 &&
4027 nla_get_u32(attr1) == nla_get_u32(attr2))
4028 return 0;
4029 }
4030
4031 return n_channels;
4032}
4033
2a519311
JB		 4034static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4035{
4c476991
JB		 4036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4037 struct net_device *dev = info->user_ptr[1];
2a519311 4038 struct cfg80211_scan_request *request;
2a519311
JB		 4039 struct nlattr *attr;
4040 struct wiphy *wiphy;
83f5e2cf 4041 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 4042 size_t ie_len;
2a519311 4043
f4a11bb0
JB		 4044 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4045 return -EINVAL;
4046
79c97e97 4047 wiphy = &rdev->wiphy;
2a519311 4048
4c476991
JB		 4049 if (!rdev->ops->scan)
4050 return -EOPNOTSUPP;
2a519311 4051
4c476991
JB		 4052 if (rdev->scan_req)
4053 return -EBUSY;
2a519311
JB		 4054
4055 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 4056 n_channels = validate_scan_freqs(
4057 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 4058 if (!n_channels)
4059 return -EINVAL;
2a519311 4060 } else {
34850ab2 4061 enum ieee80211_band band;
83f5e2cf
JB		 4062 n_channels = 0;
4063
2a519311
JB		 4064 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4065 if (wiphy->bands[band])
4066 n_channels += wiphy->bands[band]->n_channels;
4067 }
4068
4069 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4070 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4071 n_ssids++;
4072
4c476991
JB		 4073 if (n_ssids > wiphy->max_scan_ssids)
4074 return -EINVAL;
2a519311 4075
70692ad2
JM		 4076 if (info->attrs[NL80211_ATTR_IE])
4077 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4078 else
4079 ie_len = 0;
4080
4c476991
JB		 4081 if (ie_len > wiphy->max_scan_ie_len)
4082 return -EINVAL;
18a83659 4083
2a519311 4084 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 4085 + sizeof(*request->ssids) * n_ssids
4086 + sizeof(*request->channels) * n_channels
70692ad2 4087 + ie_len, GFP_KERNEL);
4c476991
JB		 4088 if (!request)
4089 return -ENOMEM;
2a519311 4090
2a519311 4091 if (n_ssids)
5ba63533 4092 request->ssids = (void *)&request->channels[n_channels];
2a519311 4093 request->n_ssids = n_ssids;
70692ad2
JM		 4094 if (ie_len) {
4095 if (request->ssids)
4096 request->ie = (void *)(request->ssids + n_ssids);
4097 else
4098 request->ie = (void *)(request->channels + n_channels);
4099 }
2a519311 4100
584991dc 4101 i = 0;
2a519311
JB		 4102 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4103 /* user specified, bail out if channel not found */
2a519311 4104 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 4105 struct ieee80211_channel *chan;
4106
4107 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4108
4109 if (!chan) {
2a519311
JB		 4110 err = -EINVAL;
4111 goto out_free;
4112 }
584991dc
JB		 4113
4114 /* ignore disabled channels */
4115 if (chan->flags & IEEE80211_CHAN_DISABLED)
4116 continue;
4117
4118 request->channels[i] = chan;
2a519311
JB		 4119 i++;
4120 }
4121 } else {
34850ab2
JB		 4122 enum ieee80211_band band;
4123
2a519311 4124 /* all channels */
2a519311
JB		 4125 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4126 int j;
4127 if (!wiphy->bands[band])
4128 continue;
4129 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 4130 struct ieee80211_channel *chan;
4131
4132 chan = &wiphy->bands[band]->channels[j];
4133
4134 if (chan->flags & IEEE80211_CHAN_DISABLED)
4135 continue;
4136
4137 request->channels[i] = chan;
2a519311
JB		 4138 i++;
4139 }
4140 }
4141 }
4142
584991dc
JB		 4143 if (!i) {
4144 err = -EINVAL;
4145 goto out_free;
4146 }
4147
4148 request->n_channels = i;
4149
2a519311
JB		 4150 i = 0;
4151 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4152 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 4153 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 4154 err = -EINVAL;
4155 goto out_free;
4156 }
57a27e1d 4157 request->ssids[i].ssid_len = nla_len(attr);
2a519311 4158 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 4159 i++;
4160 }
4161 }
4162
70692ad2
JM		 4163 if (info->attrs[NL80211_ATTR_IE]) {
4164 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 4165 memcpy((void *)request->ie,
4166 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 4167 request->ie_len);
4168 }
4169
34850ab2 4170 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 4171 if (wiphy->bands[i])
4172 request->rates[i] =
4173 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 4174
4175 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4176 nla_for_each_nested(attr,
4177 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4178 tmp) {
4179 enum ieee80211_band band = nla_type(attr);
4180
84404623 4181 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 4182 err = -EINVAL;
4183 goto out_free;
4184 }
4185 err = ieee80211_get_ratemask(wiphy->bands[band],
4186 nla_data(attr),
4187 nla_len(attr),
4188 &request->rates[band]);
4189 if (err)
4190 goto out_free;
4191 }
4192 }
4193
e9f935e3
RM		 4194 request->no_cck =
4195 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4196
463d0183 4197 request->dev = dev;
79c97e97 4198 request->wiphy = &rdev->wiphy;
2a519311 4199
79c97e97
JB		 4200 rdev->scan_req = request;
4201 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 4202
463d0183 4203 if (!err) {
79c97e97 4204 nl80211_send_scan_start(rdev, dev);
463d0183 4205 dev_hold(dev);
4c476991 4206 } else {
2a519311 4207 out_free:
79c97e97 4208 rdev->scan_req = NULL;
2a519311
JB		 4209 kfree(request);
4210 }
3b85875a 4211
2a519311
JB		 4212 return err;
4213}
4214
807f8a8c
LC		 4215static int nl80211_start_sched_scan(struct sk_buff *skb,
4216 struct genl_info *info)
4217{
4218 struct cfg80211_sched_scan_request *request;
4219 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4220 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 4221 struct nlattr *attr;
4222 struct wiphy *wiphy;
a1f1c21c 4223 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 4224 u32 interval;
807f8a8c
LC		 4225 enum ieee80211_band band;
4226 size_t ie_len;
a1f1c21c 4227 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 4228
4229 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4230 !rdev->ops->sched_scan_start)
4231 return -EOPNOTSUPP;
4232
4233 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4234 return -EINVAL;
4235
bbe6ad6d
LC		 4236 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4237 return -EINVAL;
4238
4239 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4240 if (interval == 0)
4241 return -EINVAL;
4242
807f8a8c
LC		 4243 wiphy = &rdev->wiphy;
4244
4245 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4246 n_channels = validate_scan_freqs(
4247 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4248 if (!n_channels)
4249 return -EINVAL;
4250 } else {
4251 n_channels = 0;
4252
4253 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4254 if (wiphy->bands[band])
4255 n_channels += wiphy->bands[band]->n_channels;
4256 }
4257
4258 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4259 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4260 tmp)
4261 n_ssids++;
4262
93b6aa69 4263 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 4264 return -EINVAL;
4265
a1f1c21c
LC		 4266 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4267 nla_for_each_nested(attr,
4268 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4269 tmp)
4270 n_match_sets++;
4271
4272 if (n_match_sets > wiphy->max_match_sets)
4273 return -EINVAL;
4274
807f8a8c
LC		 4275 if (info->attrs[NL80211_ATTR_IE])
4276 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4277 else
4278 ie_len = 0;
4279
5a865bad 4280 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 4281 return -EINVAL;
4282
c10841ca
LC		 4283 mutex_lock(&rdev->sched_scan_mtx);
4284
4285 if (rdev->sched_scan_req) {
4286 err = -EINPROGRESS;
4287 goto out;
4288 }
4289
807f8a8c 4290 request = kzalloc(sizeof(*request)
a2cd43c5 4291 + sizeof(*request->ssids) * n_ssids
a1f1c21c 4292 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 4293 + sizeof(*request->channels) * n_channels
807f8a8c 4294 + ie_len, GFP_KERNEL);
c10841ca
LC		 4295 if (!request) {
4296 err = -ENOMEM;
4297 goto out;
4298 }
807f8a8c
LC		 4299
4300 if (n_ssids)
4301 request->ssids = (void *)&request->channels[n_channels];
4302 request->n_ssids = n_ssids;
4303 if (ie_len) {
4304 if (request->ssids)
4305 request->ie = (void *)(request->ssids + n_ssids);
4306 else
4307 request->ie = (void *)(request->channels + n_channels);
4308 }
4309
a1f1c21c
LC		 4310 if (n_match_sets) {
4311 if (request->ie)
4312 request->match_sets = (void *)(request->ie + ie_len);
4313 else if (request->ssids)
4314 request->match_sets =
4315 (void *)(request->ssids + n_ssids);
4316 else
4317 request->match_sets =
4318 (void *)(request->channels + n_channels);
4319 }
4320 request->n_match_sets = n_match_sets;
4321
807f8a8c
LC		 4322 i = 0;
4323 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4324 /* user specified, bail out if channel not found */
4325 nla_for_each_nested(attr,
4326 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4327 tmp) {
4328 struct ieee80211_channel *chan;
4329
4330 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4331
4332 if (!chan) {
4333 err = -EINVAL;
4334 goto out_free;
4335 }
4336
4337 /* ignore disabled channels */
4338 if (chan->flags & IEEE80211_CHAN_DISABLED)
4339 continue;
4340
4341 request->channels[i] = chan;
4342 i++;
4343 }
4344 } else {
4345 /* all channels */
4346 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4347 int j;
4348 if (!wiphy->bands[band])
4349 continue;
4350 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4351 struct ieee80211_channel *chan;
4352
4353 chan = &wiphy->bands[band]->channels[j];
4354
4355 if (chan->flags & IEEE80211_CHAN_DISABLED)
4356 continue;
4357
4358 request->channels[i] = chan;
4359 i++;
4360 }
4361 }
4362 }
4363
4364 if (!i) {
4365 err = -EINVAL;
4366 goto out_free;
4367 }
4368
4369 request->n_channels = i;
4370
4371 i = 0;
4372 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4373 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4374 tmp) {
57a27e1d 4375 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 4376 err = -EINVAL;
4377 goto out_free;
4378 }
57a27e1d 4379 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4380 memcpy(request->ssids[i].ssid, nla_data(attr),
4381 nla_len(attr));
807f8a8c
LC		 4382 i++;
4383 }
4384 }
4385
a1f1c21c
LC		 4386 i = 0;
4387 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4388 nla_for_each_nested(attr,
4389 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4390 tmp) {
88e920b4 4391 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 4392
4393 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4394 nla_data(attr), nla_len(attr),
4395 nl80211_match_policy);
4a4ab0d7 4396 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 4397 if (ssid) {
4398 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4399 err = -EINVAL;
4400 goto out_free;
4401 }
4402 memcpy(request->match_sets[i].ssid.ssid,
4403 nla_data(ssid), nla_len(ssid));
4404 request->match_sets[i].ssid.ssid_len =
4405 nla_len(ssid);
4406 }
88e920b4
TP		 4407 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4408 if (rssi)
4409 request->rssi_thold = nla_get_u32(rssi);
4410 else
4411 request->rssi_thold =
4412 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 4413 i++;
4414 }
4415 }
4416
807f8a8c
LC		 4417 if (info->attrs[NL80211_ATTR_IE]) {
4418 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4419 memcpy((void *)request->ie,
4420 nla_data(info->attrs[NL80211_ATTR_IE]),
4421 request->ie_len);
4422 }
4423
4424 request->dev = dev;
4425 request->wiphy = &rdev->wiphy;
bbe6ad6d 4426 request->interval = interval;
807f8a8c
LC		 4427
4428 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4429 if (!err) {
4430 rdev->sched_scan_req = request;
4431 nl80211_send_sched_scan(rdev, dev,
4432 NL80211_CMD_START_SCHED_SCAN);
4433 goto out;
4434 }
4435
4436out_free:
4437 kfree(request);
4438out:
c10841ca 4439 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4440 return err;
4441}
4442
4443static int nl80211_stop_sched_scan(struct sk_buff *skb,
4444 struct genl_info *info)
4445{
4446 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4447 int err;
807f8a8c
LC		 4448
4449 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4450 !rdev->ops->sched_scan_stop)
4451 return -EOPNOTSUPP;
4452
c10841ca
LC		 4453 mutex_lock(&rdev->sched_scan_mtx);
4454 err = __cfg80211_stop_sched_scan(rdev, false);
4455 mutex_unlock(&rdev->sched_scan_mtx);
4456
4457 return err;
807f8a8c
LC		 4458}
4459
9720bb3a
JB		 4460static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4461 u32 seq, int flags,
2a519311 4462 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4463 struct wireless_dev *wdev,
4464 struct cfg80211_internal_bss *intbss)
2a519311 4465{
48ab905d 4466 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 4467 void *hdr;
4468 struct nlattr *bss;
48ab905d
JB		 4469
4470 ASSERT_WDEV_LOCK(wdev);
2a519311 4471
9720bb3a 4472 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
2a519311
JB		 4473 NL80211_CMD_NEW_SCAN_RESULTS);
4474 if (!hdr)
4475 return -1;
4476
9720bb3a
JB		 4477 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4478
9360ffd1
DM		 4479 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4480 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4481 goto nla_put_failure;
2a519311
JB		 4482
4483 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4484 if (!bss)
4485 goto nla_put_failure;
9360ffd1
DM		 4486 if ((!is_zero_ether_addr(res->bssid) &&
4487 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4488 (res->information_elements && res->len_information_elements &&
4489 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4490 res->len_information_elements,
4491 res->information_elements)) ||
4492 (res->beacon_ies && res->len_beacon_ies &&
4493 res->beacon_ies != res->information_elements &&
4494 nla_put(msg, NL80211_BSS_BEACON_IES,
4495 res->len_beacon_ies, res->beacon_ies)))
4496 goto nla_put_failure;
4497 if (res->tsf &&
4498 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4499 goto nla_put_failure;
4500 if (res->beacon_interval &&
4501 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4502 goto nla_put_failure;
4503 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4504 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4505 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4506 jiffies_to_msecs(jiffies - intbss->ts)))
4507 goto nla_put_failure;
2a519311 4508
77965c97 4509 switch (rdev->wiphy.signal_type) {
2a519311 4510 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 4511 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4512 goto nla_put_failure;
2a519311
JB		 4513 break;
4514 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 4515 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4516 goto nla_put_failure;
2a519311
JB		 4517 break;
4518 default:
4519 break;
4520 }
4521
48ab905d 4522 switch (wdev->iftype) {
074ac8df 4523 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 4524 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 4525 if (intbss == wdev->current_bss &&
4526 nla_put_u32(msg, NL80211_BSS_STATUS,
4527 NL80211_BSS_STATUS_ASSOCIATED))
4528 goto nla_put_failure;
48ab905d
JB		 4529 break;
4530 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 4531 if (intbss == wdev->current_bss &&
4532 nla_put_u32(msg, NL80211_BSS_STATUS,
4533 NL80211_BSS_STATUS_IBSS_JOINED))
4534 goto nla_put_failure;
48ab905d
JB		 4535 break;
4536 default:
4537 break;
4538 }
4539
2a519311
JB		 4540 nla_nest_end(msg, bss);
4541
4542 return genlmsg_end(msg, hdr);
4543
4544 nla_put_failure:
4545 genlmsg_cancel(msg, hdr);
4546 return -EMSGSIZE;
4547}
4548
4549static int nl80211_dump_scan(struct sk_buff *skb,
4550 struct netlink_callback *cb)
4551{
48ab905d
JB		 4552 struct cfg80211_registered_device *rdev;
4553 struct net_device *dev;
2a519311 4554 struct cfg80211_internal_bss *scan;
48ab905d 4555 struct wireless_dev *wdev;
2a519311
JB		 4556 int start = cb->args[1], idx = 0;
4557 int err;
4558
67748893
JB		 4559 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4560 if (err)
4561 return err;
2a519311 4562
48ab905d 4563 wdev = dev->ieee80211_ptr;
2a519311 4564
48ab905d
JB		 4565 wdev_lock(wdev);
4566 spin_lock_bh(&rdev->bss_lock);
4567 cfg80211_bss_expire(rdev);
4568
9720bb3a
JB		 4569 cb->seq = rdev->bss_generation;
4570
48ab905d 4571 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4572 if (++idx <= start)
4573 continue;
9720bb3a 4574 if (nl80211_send_bss(skb, cb,
2a519311 4575 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4576 rdev, wdev, scan) < 0) {
2a519311 4577 idx--;
67748893 4578 break;
2a519311
JB		 4579 }
4580 }
4581
48ab905d
JB		 4582 spin_unlock_bh(&rdev->bss_lock);
4583 wdev_unlock(wdev);
2a519311
JB		 4584
4585 cb->args[1] = idx;
67748893 4586 nl80211_finish_netdev_dump(rdev);
2a519311 4587
67748893 4588 return skb->len;
2a519311
JB		 4589}
4590
61fa713c
HS		 4591static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4592 int flags, struct net_device *dev,
4593 struct survey_info *survey)
4594{
4595 void *hdr;
4596 struct nlattr *infoattr;
4597
61fa713c
HS		 4598 hdr = nl80211hdr_put(msg, pid, seq, flags,
4599 NL80211_CMD_NEW_SURVEY_RESULTS);
4600 if (!hdr)
4601 return -ENOMEM;
4602
9360ffd1
DM		 4603 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4604 goto nla_put_failure;
61fa713c
HS		 4605
4606 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4607 if (!infoattr)
4608 goto nla_put_failure;
4609
9360ffd1
DM		 4610 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4611 survey->channel->center_freq))
4612 goto nla_put_failure;
4613
4614 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4615 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4616 goto nla_put_failure;
4617 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4618 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4619 goto nla_put_failure;
4620 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4621 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4622 survey->channel_time))
4623 goto nla_put_failure;
4624 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4625 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4626 survey->channel_time_busy))
4627 goto nla_put_failure;
4628 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4629 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4630 survey->channel_time_ext_busy))
4631 goto nla_put_failure;
4632 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4633 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4634 survey->channel_time_rx))
4635 goto nla_put_failure;
4636 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4637 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4638 survey->channel_time_tx))
4639 goto nla_put_failure;
61fa713c
HS		 4640
4641 nla_nest_end(msg, infoattr);
4642
4643 return genlmsg_end(msg, hdr);
4644
4645 nla_put_failure:
4646 genlmsg_cancel(msg, hdr);
4647 return -EMSGSIZE;
4648}
4649
4650static int nl80211_dump_survey(struct sk_buff *skb,
4651 struct netlink_callback *cb)
4652{
4653 struct survey_info survey;
4654 struct cfg80211_registered_device *dev;
4655 struct net_device *netdev;
61fa713c
HS		 4656 int survey_idx = cb->args[1];
4657 int res;
4658
67748893
JB		 4659 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4660 if (res)
4661 return res;
61fa713c
HS		 4662
4663 if (!dev->ops->dump_survey) {
4664 res = -EOPNOTSUPP;
4665 goto out_err;
4666 }
4667
4668 while (1) {
180cdc79
LR		 4669 struct ieee80211_channel *chan;
4670
61fa713c
HS		 4671 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4672 &survey);
4673 if (res == -ENOENT)
4674 break;
4675 if (res)
4676 goto out_err;
4677
180cdc79
LR		 4678 /* Survey without a channel doesn't make sense */
4679 if (!survey.channel) {
4680 res = -EINVAL;
4681 goto out;
4682 }
4683
4684 chan = ieee80211_get_channel(&dev->wiphy,
4685 survey.channel->center_freq);
4686 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4687 survey_idx++;
4688 continue;
4689 }
4690
61fa713c
HS		 4691 if (nl80211_send_survey(skb,
4692 NETLINK_CB(cb->skb).pid,
4693 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4694 netdev,
4695 &survey) < 0)
4696 goto out;
4697 survey_idx++;
4698 }
4699
4700 out:
4701 cb->args[1] = survey_idx;
4702 res = skb->len;
4703 out_err:
67748893 4704 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4705 return res;
4706}
4707
255e737e
JM		 4708static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4709{
b23aa676
SO		 4710 return auth_type <= NL80211_AUTHTYPE_MAX;
4711}
4712
4713static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4714{
4715 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4716 NL80211_WPA_VERSION_2));
4717}
4718
636a5d36
JM		 4719static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4720{
4c476991
JB		 4721 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4722 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 4723 struct ieee80211_channel *chan;
4724 const u8 *bssid, *ssid, *ie = NULL;
4725 int err, ssid_len, ie_len = 0;
4726 enum nl80211_auth_type auth_type;
fffd0934 4727 struct key_parse key;
d5cdfacb 4728 bool local_state_change;
636a5d36 4729
f4a11bb0
JB		 4730 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4731 return -EINVAL;
4732
4733 if (!info->attrs[NL80211_ATTR_MAC])
4734 return -EINVAL;
4735
1778092e
JM		 4736 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4737 return -EINVAL;
4738
19957bb3
JB		 4739 if (!info->attrs[NL80211_ATTR_SSID])
4740 return -EINVAL;
4741
4742 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4743 return -EINVAL;
4744
fffd0934
JB		 4745 err = nl80211_parse_key(info, &key);
4746 if (err)
4747 return err;
4748
4749 if (key.idx >= 0) {
e31b8213
JB		 4750 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4751 return -EINVAL;
fffd0934
JB		 4752 if (!key.p.key || !key.p.key_len)
4753 return -EINVAL;
4754 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4755 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4756 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4757 key.p.key_len != WLAN_KEY_LEN_WEP104))
4758 return -EINVAL;
4759 if (key.idx > 4)
4760 return -EINVAL;
4761 } else {
4762 key.p.key_len = 0;
4763 key.p.key = NULL;
4764 }
4765
afea0b7a
JB		 4766 if (key.idx >= 0) {
4767 int i;
4768 bool ok = false;
4769 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4770 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4771 ok = true;
4772 break;
4773 }
4774 }
4c476991
JB		 4775 if (!ok)
4776 return -EINVAL;
afea0b7a
JB		 4777 }
4778
4c476991
JB		 4779 if (!rdev->ops->auth)
4780 return -EOPNOTSUPP;
636a5d36 4781
074ac8df 4782 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4783 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4784 return -EOPNOTSUPP;
eec60b03 4785
19957bb3 4786 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4787 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4788 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4789 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4790 return -EINVAL;
636a5d36 4791
19957bb3
JB		 4792 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4793 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4794
4795 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4796 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4797 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4798 }
4799
19957bb3 4800 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4801 if (!nl80211_valid_auth_type(auth_type))
4802 return -EINVAL;
636a5d36 4803
d5cdfacb
JM		 4804 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4805
95de817b
JB		 4806 /*
4807 * Since we no longer track auth state, ignore
4808 * requests to only change local state.
4809 */
4810 if (local_state_change)
4811 return 0;
4812
4c476991
JB		 4813 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4814 ssid, ssid_len, ie, ie_len,
95de817b 4815 key.p.key, key.p.key_len, key.idx);
636a5d36
JM		 4816}
4817
c0692b8f
JB		 4818static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4819 struct genl_info *info,
3dc27d25
JB		 4820 struct cfg80211_crypto_settings *settings,
4821 int cipher_limit)
b23aa676 4822{
c0b2bbd8
JB		 4823 memset(settings, 0, sizeof(*settings));
4824
b23aa676
SO		 4825 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4826
c0692b8f
JB		 4827 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4828 u16 proto;
4829 proto = nla_get_u16(
4830 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4831 settings->control_port_ethertype = cpu_to_be16(proto);
4832 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4833 proto != ETH_P_PAE)
4834 return -EINVAL;
4835 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4836 settings->control_port_no_encrypt = true;
4837 } else
4838 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4839
b23aa676
SO		 4840 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4841 void *data;
4842 int len, i;
4843
4844 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4845 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4846 settings->n_ciphers_pairwise = len / sizeof(u32);
4847
4848 if (len % sizeof(u32))
4849 return -EINVAL;
4850
3dc27d25 4851 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4852 return -EINVAL;
4853
4854 memcpy(settings->ciphers_pairwise, data, len);
4855
4856 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 4857 if (!cfg80211_supported_cipher_suite(
4858 &rdev->wiphy,
b23aa676
SO		 4859 settings->ciphers_pairwise[i]))
4860 return -EINVAL;
4861 }
4862
4863 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4864 settings->cipher_group =
4865 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 4866 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4867 settings->cipher_group))
b23aa676
SO		 4868 return -EINVAL;
4869 }
4870
4871 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4872 settings->wpa_versions =
4873 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4874 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4875 return -EINVAL;
4876 }
4877
4878 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4879 void *data;
6d30240e 4880 int len;
b23aa676
SO		 4881
4882 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4883 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4884 settings->n_akm_suites = len / sizeof(u32);
4885
4886 if (len % sizeof(u32))
4887 return -EINVAL;
4888
1b9ca027
JM		 4889 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4890 return -EINVAL;
4891
b23aa676 4892 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 4893 }
4894
4895 return 0;
4896}
4897
636a5d36
JM		 4898static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4899{
4c476991
JB		 4900 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4901 struct net_device *dev = info->user_ptr[1];
19957bb3 4902 struct cfg80211_crypto_settings crypto;
f444de05 4903 struct ieee80211_channel *chan;
3e5d7649 4904 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4905 int err, ssid_len, ie_len = 0;
4906 bool use_mfp = false;
7e7c8926
BG		 4907 u32 flags = 0;
4908 struct ieee80211_ht_cap *ht_capa = NULL;
4909 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 4910
f4a11bb0
JB		 4911 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4912 return -EINVAL;
4913
4914 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4915 !info->attrs[NL80211_ATTR_SSID] ||
4916 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4917 return -EINVAL;
4918
4c476991
JB		 4919 if (!rdev->ops->assoc)
4920 return -EOPNOTSUPP;
636a5d36 4921
074ac8df 4922 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4923 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4924 return -EOPNOTSUPP;
eec60b03 4925
19957bb3 4926 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4927
19957bb3
JB		 4928 chan = ieee80211_get_channel(&rdev->wiphy,
4929 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4930 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4931 return -EINVAL;
636a5d36 4932
19957bb3
JB		 4933 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4934 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4935
4936 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4937 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4938 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4939 }
4940
dc6382ce 4941 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 4942 enum nl80211_mfp mfp =
dc6382ce 4943 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 4944 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 4945 use_mfp = true;
4c476991
JB		 4946 else if (mfp != NL80211_MFP_NO)
4947 return -EINVAL;
dc6382ce
JM		 4948 }
4949
3e5d7649
JB		 4950 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4951 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4952
7e7c8926
BG		 4953 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4954 flags |= ASSOC_REQ_DISABLE_HT;
4955
4956 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4957 ht_capa_mask =
4958 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4959
4960 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4961 if (!ht_capa_mask)
4962 return -EINVAL;
4963 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4964 }
4965
c0692b8f 4966 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 4967 if (!err)
3e5d7649
JB		 4968 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4969 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 4970 &crypto, flags, ht_capa,
4971 ht_capa_mask);
636a5d36 4972
636a5d36
JM		 4973 return err;
4974}
4975
4976static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4977{
4c476991
JB		 4978 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4979 struct net_device *dev = info->user_ptr[1];
19957bb3 4980 const u8 *ie = NULL, *bssid;
4c476991 4981 int ie_len = 0;
19957bb3 4982 u16 reason_code;
d5cdfacb 4983 bool local_state_change;
636a5d36 4984
f4a11bb0
JB		 4985 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4986 return -EINVAL;
4987
4988 if (!info->attrs[NL80211_ATTR_MAC])
4989 return -EINVAL;
4990
4991 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4992 return -EINVAL;
4993
4c476991
JB		 4994 if (!rdev->ops->deauth)
4995 return -EOPNOTSUPP;
636a5d36 4996
074ac8df 4997 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4998 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4999 return -EOPNOTSUPP;
eec60b03 5000
19957bb3 5001 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5002
19957bb3
JB		 5003 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5004 if (reason_code == 0) {
f4a11bb0 5005 /* Reason Code 0 is reserved */
4c476991 5006 return -EINVAL;
255e737e 5007 }
636a5d36
JM		 5008
5009 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5010 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5011 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5012 }
5013
d5cdfacb
JM		 5014 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5015
4c476991
JB		 5016 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5017 local_state_change);
636a5d36
JM		 5018}
5019
5020static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5021{
4c476991
JB		 5022 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5023 struct net_device *dev = info->user_ptr[1];
19957bb3 5024 const u8 *ie = NULL, *bssid;
4c476991 5025 int ie_len = 0;
19957bb3 5026 u16 reason_code;
d5cdfacb 5027 bool local_state_change;
636a5d36 5028
f4a11bb0
JB		 5029 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5030 return -EINVAL;
5031
5032 if (!info->attrs[NL80211_ATTR_MAC])
5033 return -EINVAL;
5034
5035 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5036 return -EINVAL;
5037
4c476991
JB		 5038 if (!rdev->ops->disassoc)
5039 return -EOPNOTSUPP;
636a5d36 5040
074ac8df 5041 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5042 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5043 return -EOPNOTSUPP;
eec60b03 5044
19957bb3 5045 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5046
19957bb3
JB		 5047 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5048 if (reason_code == 0) {
f4a11bb0 5049 /* Reason Code 0 is reserved */
4c476991 5050 return -EINVAL;
255e737e 5051 }
636a5d36
JM		 5052
5053 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5054 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5055 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5056 }
5057
d5cdfacb
JM		 5058 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5059
4c476991
JB		 5060 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5061 local_state_change);
636a5d36
JM		 5062}
5063
dd5b4cc7
FF		 5064static bool
5065nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5066 int mcast_rate[IEEE80211_NUM_BANDS],
5067 int rateval)
5068{
5069 struct wiphy *wiphy = &rdev->wiphy;
5070 bool found = false;
5071 int band, i;
5072
5073 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5074 struct ieee80211_supported_band *sband;
5075
5076 sband = wiphy->bands[band];
5077 if (!sband)
5078 continue;
5079
5080 for (i = 0; i < sband->n_bitrates; i++) {
5081 if (sband->bitrates[i].bitrate == rateval) {
5082 mcast_rate[band] = i + 1;
5083 found = true;
5084 break;
5085 }
5086 }
5087 }
5088
5089 return found;
5090}
5091
04a773ad
JB		 5092static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5093{
4c476991
JB		 5094 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5095 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 5096 struct cfg80211_ibss_params ibss;
5097 struct wiphy *wiphy;
fffd0934 5098 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 5099 int err;
5100
8e30bc55
JB		 5101 memset(&ibss, 0, sizeof(ibss));
5102
04a773ad
JB		 5103 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5104 return -EINVAL;
5105
5106 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5107 !info->attrs[NL80211_ATTR_SSID] ||
5108 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5109 return -EINVAL;
5110
8e30bc55
JB		 5111 ibss.beacon_interval = 100;
5112
5113 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5114 ibss.beacon_interval =
5115 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5116 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5117 return -EINVAL;
5118 }
5119
4c476991
JB		 5120 if (!rdev->ops->join_ibss)
5121 return -EOPNOTSUPP;
04a773ad 5122
4c476991
JB		 5123 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5124 return -EOPNOTSUPP;
04a773ad 5125
79c97e97 5126 wiphy = &rdev->wiphy;
04a773ad 5127
39193498 5128 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 5129 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 5130
5131 if (!is_valid_ether_addr(ibss.bssid))
5132 return -EINVAL;
5133 }
04a773ad
JB		 5134 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5135 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5136
5137 if (info->attrs[NL80211_ATTR_IE]) {
5138 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5139 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5140 }
5141
54858ee5
AS		 5142 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5143 enum nl80211_channel_type channel_type;
5144
cd6c6598 5145 if (!nl80211_valid_channel_type(info, &channel_type))
54858ee5
AS		 5146 return -EINVAL;
5147
5148 if (channel_type != NL80211_CHAN_NO_HT &&
5149 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5150 return -EINVAL;
5151
5152 ibss.channel_type = channel_type;
5153 } else {
5154 ibss.channel_type = NL80211_CHAN_NO_HT;
5155 }
5156
5157 ibss.channel = rdev_freq_to_chan(rdev,
5158 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5159 ibss.channel_type);
04a773ad
JB		 5160 if (!ibss.channel ||
5161 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 5162 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5163 return -EINVAL;
04a773ad 5164
54858ee5
AS		 5165 /* Both channels should be able to initiate communication */
5166 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5167 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5168 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5169 ibss.channel_type))
5170 return -EINVAL;
5171
04a773ad 5172 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 5173 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5174
fbd2c8dc
TP		 5175 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5176 u8 *rates =
5177 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5178 int n_rates =
5179 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5180 struct ieee80211_supported_band *sband =
5181 wiphy->bands[ibss.channel->band];
fbd2c8dc 5182
34850ab2
JB		 5183 err = ieee80211_get_ratemask(sband, rates, n_rates,
5184 &ibss.basic_rates);
5185 if (err)
5186 return err;
fbd2c8dc 5187 }
dd5b4cc7
FF		 5188
5189 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5190 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5191 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5192 return -EINVAL;
fbd2c8dc 5193
4c476991
JB		 5194 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5195 connkeys = nl80211_parse_connkeys(rdev,
5196 info->attrs[NL80211_ATTR_KEYS]);
5197 if (IS_ERR(connkeys))
5198 return PTR_ERR(connkeys);
5199 }
04a773ad 5200
267335d6
AQ		 5201 ibss.control_port =
5202 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5203
4c476991 5204 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 5205 if (err)
5206 kfree(connkeys);
04a773ad
JB		 5207 return err;
5208}
5209
5210static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5211{
4c476991
JB		 5212 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5213 struct net_device *dev = info->user_ptr[1];
04a773ad 5214
4c476991
JB		 5215 if (!rdev->ops->leave_ibss)
5216 return -EOPNOTSUPP;
04a773ad 5217
4c476991
JB		 5218 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5219 return -EOPNOTSUPP;
04a773ad 5220
4c476991 5221 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 5222}
5223
aff89a9b
JB		 5224#ifdef CONFIG_NL80211_TESTMODE
5225static struct genl_multicast_group nl80211_testmode_mcgrp = {
5226 .name = "testmode",
5227};
5228
5229static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5230{
4c476991 5231 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 5232 int err;
5233
5234 if (!info->attrs[NL80211_ATTR_TESTDATA])
5235 return -EINVAL;
5236
aff89a9b
JB		 5237 err = -EOPNOTSUPP;
5238 if (rdev->ops->testmode_cmd) {
5239 rdev->testmode_info = info;
5240 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5241 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5242 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5243 rdev->testmode_info = NULL;
5244 }
5245
aff89a9b
JB		 5246 return err;
5247}
5248
71063f0e
WYG		 5249static int nl80211_testmode_dump(struct sk_buff *skb,
5250 struct netlink_callback *cb)
5251{
00918d33 5252 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 5253 int err;
5254 long phy_idx;
5255 void *data = NULL;
5256 int data_len = 0;
5257
5258 if (cb->args[0]) {
5259 /*
5260 * 0 is a valid index, but not valid for args[0],
5261 * so we need to offset by 1.
5262 */
5263 phy_idx = cb->args[0] - 1;
5264 } else {
5265 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5266 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5267 nl80211_policy);
5268 if (err)
5269 return err;
00918d33 5270
2bd7e35d
JB		 5271 mutex_lock(&cfg80211_mutex);
5272 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5273 nl80211_fam.attrbuf);
5274 if (IS_ERR(rdev)) {
5275 mutex_unlock(&cfg80211_mutex);
5276 return PTR_ERR(rdev);
00918d33 5277 }
2bd7e35d
JB		 5278 phy_idx = rdev->wiphy_idx;
5279 rdev = NULL;
5280 mutex_unlock(&cfg80211_mutex);
5281
71063f0e
WYG		 5282 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5283 cb->args[1] =
5284 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5285 }
5286
5287 if (cb->args[1]) {
5288 data = nla_data((void *)cb->args[1]);
5289 data_len = nla_len((void *)cb->args[1]);
5290 }
5291
5292 mutex_lock(&cfg80211_mutex);
00918d33
JB		 5293 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5294 if (!rdev) {
71063f0e
WYG		 5295 mutex_unlock(&cfg80211_mutex);
5296 return -ENOENT;
5297 }
00918d33 5298 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 5299 mutex_unlock(&cfg80211_mutex);
5300
00918d33 5301 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 5302 err = -EOPNOTSUPP;
5303 goto out_err;
5304 }
5305
5306 while (1) {
5307 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5308 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5309 NL80211_CMD_TESTMODE);
5310 struct nlattr *tmdata;
5311
9360ffd1 5312 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 5313 genlmsg_cancel(skb, hdr);
5314 break;
5315 }
5316
5317 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5318 if (!tmdata) {
5319 genlmsg_cancel(skb, hdr);
5320 break;
5321 }
00918d33
JB		 5322 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5323 data, data_len);
71063f0e
WYG		 5324 nla_nest_end(skb, tmdata);
5325
5326 if (err == -ENOBUFS || err == -ENOENT) {
5327 genlmsg_cancel(skb, hdr);
5328 break;
5329 } else if (err) {
5330 genlmsg_cancel(skb, hdr);
5331 goto out_err;
5332 }
5333
5334 genlmsg_end(skb, hdr);
5335 }
5336
5337 err = skb->len;
5338 /* see above */
5339 cb->args[0] = phy_idx + 1;
5340 out_err:
00918d33 5341 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 5342 return err;
5343}
5344
aff89a9b
JB		 5345static struct sk_buff *
5346__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5347 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5348{
5349 struct sk_buff *skb;
5350 void *hdr;
5351 struct nlattr *data;
5352
5353 skb = nlmsg_new(approxlen + 100, gfp);
5354 if (!skb)
5355 return NULL;
5356
5357 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5358 if (!hdr) {
5359 kfree_skb(skb);
5360 return NULL;
5361 }
5362
9360ffd1
DM		 5363 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5364 goto nla_put_failure;
aff89a9b
JB		 5365 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5366
5367 ((void **)skb->cb)[0] = rdev;
5368 ((void **)skb->cb)[1] = hdr;
5369 ((void **)skb->cb)[2] = data;
5370
5371 return skb;
5372
5373 nla_put_failure:
5374 kfree_skb(skb);
5375 return NULL;
5376}
5377
5378struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5379 int approxlen)
5380{
5381 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5382
5383 if (WARN_ON(!rdev->testmode_info))
5384 return NULL;
5385
5386 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5387 rdev->testmode_info->snd_pid,
5388 rdev->testmode_info->snd_seq,
5389 GFP_KERNEL);
5390}
5391EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5392
5393int cfg80211_testmode_reply(struct sk_buff *skb)
5394{
5395 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5396 void *hdr = ((void **)skb->cb)[1];
5397 struct nlattr *data = ((void **)skb->cb)[2];
5398
5399 if (WARN_ON(!rdev->testmode_info)) {
5400 kfree_skb(skb);
5401 return -EINVAL;
5402 }
5403
5404 nla_nest_end(skb, data);
5405 genlmsg_end(skb, hdr);
5406 return genlmsg_reply(skb, rdev->testmode_info);
5407}
5408EXPORT_SYMBOL(cfg80211_testmode_reply);
5409
5410struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5411 int approxlen, gfp_t gfp)
5412{
5413 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5414
5415 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5416}
5417EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5418
5419void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5420{
5421 void *hdr = ((void **)skb->cb)[1];
5422 struct nlattr *data = ((void **)skb->cb)[2];
5423
5424 nla_nest_end(skb, data);
5425 genlmsg_end(skb, hdr);
5426 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5427}
5428EXPORT_SYMBOL(cfg80211_testmode_event);
5429#endif
5430
b23aa676
SO		 5431static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5432{
4c476991
JB		 5433 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5434 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5435 struct cfg80211_connect_params connect;
5436 struct wiphy *wiphy;
fffd0934 5437 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 5438 int err;
5439
5440 memset(&connect, 0, sizeof(connect));
5441
5442 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5443 return -EINVAL;
5444
5445 if (!info->attrs[NL80211_ATTR_SSID] ||
5446 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5447 return -EINVAL;
5448
5449 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5450 connect.auth_type =
5451 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5452 if (!nl80211_valid_auth_type(connect.auth_type))
5453 return -EINVAL;
5454 } else
5455 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5456
5457 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5458
c0692b8f 5459 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5460 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5461 if (err)
5462 return err;
b23aa676 5463
074ac8df 5464 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5465 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5466 return -EOPNOTSUPP;
b23aa676 5467
79c97e97 5468 wiphy = &rdev->wiphy;
b23aa676 5469
4486ea98
BS		 5470 connect.bg_scan_period = -1;
5471 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5472 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5473 connect.bg_scan_period =
5474 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5475 }
5476
b23aa676
SO		 5477 if (info->attrs[NL80211_ATTR_MAC])
5478 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5479 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5480 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5481
5482 if (info->attrs[NL80211_ATTR_IE]) {
5483 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5484 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5485 }
5486
5487 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5488 connect.channel =
5489 ieee80211_get_channel(wiphy,
5490 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5491 if (!connect.channel ||
4c476991
JB		 5492 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5493 return -EINVAL;
b23aa676
SO		 5494 }
5495
fffd0934
JB		 5496 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5497 connkeys = nl80211_parse_connkeys(rdev,
5498 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 5499 if (IS_ERR(connkeys))
5500 return PTR_ERR(connkeys);
fffd0934
JB		 5501 }
5502
7e7c8926
BG		 5503 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5504 connect.flags |= ASSOC_REQ_DISABLE_HT;
5505
5506 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5507 memcpy(&connect.ht_capa_mask,
5508 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5509 sizeof(connect.ht_capa_mask));
5510
5511 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5512 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5513 return -EINVAL;
5514 memcpy(&connect.ht_capa,
5515 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5516 sizeof(connect.ht_capa));
5517 }
5518
fffd0934 5519 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5520 if (err)
5521 kfree(connkeys);
b23aa676
SO		 5522 return err;
5523}
5524
5525static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5526{
4c476991
JB		 5527 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5528 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5529 u16 reason;
5530
5531 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5532 reason = WLAN_REASON_DEAUTH_LEAVING;
5533 else
5534 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5535
5536 if (reason == 0)
5537 return -EINVAL;
5538
074ac8df 5539 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5540 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5541 return -EOPNOTSUPP;
b23aa676 5542
4c476991 5543 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5544}
5545
463d0183
JB		 5546static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5547{
4c476991 5548 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5549 struct net *net;
5550 int err;
5551 u32 pid;
5552
5553 if (!info->attrs[NL80211_ATTR_PID])
5554 return -EINVAL;
5555
5556 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5557
463d0183 5558 net = get_net_ns_by_pid(pid);
4c476991
JB		 5559 if (IS_ERR(net))
5560 return PTR_ERR(net);
463d0183
JB		 5561
5562 err = 0;
5563
5564 /* check if anything to do */
4c476991
JB		 5565 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5566 err = cfg80211_switch_netns(rdev, net);
463d0183 5567
463d0183 5568 put_net(net);
463d0183
JB		 5569 return err;
5570}
5571
67fbb16b
SO		 5572static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5573{
4c476991 5574 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5575 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5576 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5577 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5578 struct cfg80211_pmksa pmksa;
5579
5580 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5581
5582 if (!info->attrs[NL80211_ATTR_MAC])
5583 return -EINVAL;
5584
5585 if (!info->attrs[NL80211_ATTR_PMKID])
5586 return -EINVAL;
5587
67fbb16b
SO		 5588 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5589 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5590
074ac8df 5591 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5592 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5593 return -EOPNOTSUPP;
67fbb16b
SO		 5594
5595 switch (info->genlhdr->cmd) {
5596 case NL80211_CMD_SET_PMKSA:
5597 rdev_ops = rdev->ops->set_pmksa;
5598 break;
5599 case NL80211_CMD_DEL_PMKSA:
5600 rdev_ops = rdev->ops->del_pmksa;
5601 break;
5602 default:
5603 WARN_ON(1);
5604 break;
5605 }
5606
4c476991
JB		 5607 if (!rdev_ops)
5608 return -EOPNOTSUPP;
67fbb16b 5609
4c476991 5610 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5611}
5612
5613static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5614{
4c476991
JB		 5615 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5616 struct net_device *dev = info->user_ptr[1];
67fbb16b 5617
074ac8df 5618 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5619 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5620 return -EOPNOTSUPP;
67fbb16b 5621
4c476991
JB		 5622 if (!rdev->ops->flush_pmksa)
5623 return -EOPNOTSUPP;
67fbb16b 5624
4c476991 5625 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 5626}
5627
109086ce
AN		 5628static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5629{
5630 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5631 struct net_device *dev = info->user_ptr[1];
5632 u8 action_code, dialog_token;
5633 u16 status_code;
5634 u8 *peer;
5635
5636 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5637 !rdev->ops->tdls_mgmt)
5638 return -EOPNOTSUPP;
5639
5640 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5641 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5642 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5643 !info->attrs[NL80211_ATTR_IE] ||
5644 !info->attrs[NL80211_ATTR_MAC])
5645 return -EINVAL;
5646
5647 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5648 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5649 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5650 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5651
5652 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5653 dialog_token, status_code,
5654 nla_data(info->attrs[NL80211_ATTR_IE]),
5655 nla_len(info->attrs[NL80211_ATTR_IE]));
5656}
5657
5658static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5659{
5660 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5661 struct net_device *dev = info->user_ptr[1];
5662 enum nl80211_tdls_operation operation;
5663 u8 *peer;
5664
5665 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5666 !rdev->ops->tdls_oper)
5667 return -EOPNOTSUPP;
5668
5669 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5670 !info->attrs[NL80211_ATTR_MAC])
5671 return -EINVAL;
5672
5673 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5674 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5675
5676 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5677}
5678
9588bbd5
JM		 5679static int nl80211_remain_on_channel(struct sk_buff *skb,
5680 struct genl_info *info)
5681{
4c476991
JB		 5682 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5683 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 5684 struct ieee80211_channel *chan;
5685 struct sk_buff *msg;
5686 void *hdr;
5687 u64 cookie;
5688 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5689 u32 freq, duration;
5690 int err;
5691
5692 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5693 !info->attrs[NL80211_ATTR_DURATION])
5694 return -EINVAL;
5695
5696 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5697
ebf348fc
JB		 5698 if (!rdev->ops->remain_on_channel ||
5699 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5700 return -EOPNOTSUPP;
5701
9588bbd5 5702 /*
ebf348fc
JB		 5703 * We should be on that channel for at least a minimum amount of
5704 * time (10ms) but no longer than the driver supports.
9588bbd5 5705 */
ebf348fc 5706 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 5707 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 5708 return -EINVAL;
5709
cd6c6598
JB		 5710 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5711 !nl80211_valid_channel_type(info, &channel_type))
5712 return -EINVAL;
9588bbd5
JM		 5713
5714 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5715 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5716 if (chan == NULL)
5717 return -EINVAL;
9588bbd5
JM		 5718
5719 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5720 if (!msg)
5721 return -ENOMEM;
9588bbd5
JM		 5722
5723 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5724 NL80211_CMD_REMAIN_ON_CHANNEL);
5725
5726 if (IS_ERR(hdr)) {
5727 err = PTR_ERR(hdr);
5728 goto free_msg;
5729 }
5730
5731 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5732 channel_type, duration, &cookie);
5733
5734 if (err)
5735 goto free_msg;
5736
9360ffd1
DM		 5737 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5738 goto nla_put_failure;
9588bbd5
JM		 5739
5740 genlmsg_end(msg, hdr);
4c476991
JB		 5741
5742 return genlmsg_reply(msg, info);
9588bbd5
JM		 5743
5744 nla_put_failure:
5745 err = -ENOBUFS;
5746 free_msg:
5747 nlmsg_free(msg);
9588bbd5
JM		 5748 return err;
5749}
5750
5751static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5752 struct genl_info *info)
5753{
4c476991
JB		 5754 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5755 struct net_device *dev = info->user_ptr[1];
9588bbd5 5756 u64 cookie;
9588bbd5
JM		 5757
5758 if (!info->attrs[NL80211_ATTR_COOKIE])
5759 return -EINVAL;
5760
4c476991
JB		 5761 if (!rdev->ops->cancel_remain_on_channel)
5762 return -EOPNOTSUPP;
9588bbd5 5763
9588bbd5
JM		 5764 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5765
4c476991 5766 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 5767}
5768
13ae75b1
JM		 5769static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5770 u8 *rates, u8 rates_len)
5771{
5772 u8 i;
5773 u32 mask = 0;
5774
5775 for (i = 0; i < rates_len; i++) {
5776 int rate = (rates[i] & 0x7f) * 5;
5777 int ridx;
5778 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5779 struct ieee80211_rate *srate =
5780 &sband->bitrates[ridx];
5781 if (rate == srate->bitrate) {
5782 mask |= 1 << ridx;
5783 break;
5784 }
5785 }
5786 if (ridx == sband->n_bitrates)
5787 return 0; /* rate not found */
5788 }
5789
5790 return mask;
5791}
5792
24db78c0
SW		 5793static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5794 u8 *rates, u8 rates_len,
5795 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5796{
5797 u8 i;
5798
5799 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5800
5801 for (i = 0; i < rates_len; i++) {
5802 int ridx, rbit;
5803
5804 ridx = rates[i] / 8;
5805 rbit = BIT(rates[i] % 8);
5806
5807 /* check validity */
910570b5 5808 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 5809 return false;
5810
5811 /* check availability */
5812 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5813 mcs[ridx] |= rbit;
5814 else
5815 return false;
5816 }
5817
5818 return true;
5819}
5820
b54452b0 5821static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 5822 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5823 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 5824 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5825 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 5826};
5827
5828static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5829 struct genl_info *info)
5830{
5831 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 5832 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 5833 struct cfg80211_bitrate_mask mask;
4c476991
JB		 5834 int rem, i;
5835 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 5836 struct nlattr *tx_rates;
5837 struct ieee80211_supported_band *sband;
5838
5839 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5840 return -EINVAL;
5841
4c476991
JB		 5842 if (!rdev->ops->set_bitrate_mask)
5843 return -EOPNOTSUPP;
13ae75b1
JM		 5844
5845 memset(&mask, 0, sizeof(mask));
5846 /* Default to all rates enabled */
5847 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5848 sband = rdev->wiphy.bands[i];
5849 mask.control[i].legacy =
5850 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 5851 if (sband)
5852 memcpy(mask.control[i].mcs,
5853 sband->ht_cap.mcs.rx_mask,
5854 sizeof(mask.control[i].mcs));
5855 else
5856 memset(mask.control[i].mcs, 0,
5857 sizeof(mask.control[i].mcs));
13ae75b1
JM		 5858 }
5859
5860 /*
5861 * The nested attribute uses enum nl80211_band as the index. This maps
5862 * directly to the enum ieee80211_band values used in cfg80211.
5863 */
24db78c0 5864 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 5865 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5866 {
5867 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 5868 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5869 return -EINVAL;
13ae75b1 5870 sband = rdev->wiphy.bands[band];
4c476991
JB		 5871 if (sband == NULL)
5872 return -EINVAL;
13ae75b1
JM		 5873 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5874 nla_len(tx_rates), nl80211_txattr_policy);
5875 if (tb[NL80211_TXRATE_LEGACY]) {
5876 mask.control[band].legacy = rateset_to_mask(
5877 sband,
5878 nla_data(tb[NL80211_TXRATE_LEGACY]),
5879 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 5880 if ((mask.control[band].legacy == 0) &&
5881 nla_len(tb[NL80211_TXRATE_LEGACY]))
5882 return -EINVAL;
24db78c0
SW		 5883 }
5884 if (tb[NL80211_TXRATE_MCS]) {
5885 if (!ht_rateset_to_mask(
5886 sband,
5887 nla_data(tb[NL80211_TXRATE_MCS]),
5888 nla_len(tb[NL80211_TXRATE_MCS]),
5889 mask.control[band].mcs))
5890 return -EINVAL;
5891 }
5892
5893 if (mask.control[band].legacy == 0) {
5894 /* don't allow empty legacy rates if HT
5895 * is not even supported. */
5896 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5897 return -EINVAL;
5898
5899 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5900 if (mask.control[band].mcs[i])
5901 break;
5902
5903 /* legacy and mcs rates may not be both empty */
5904 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 5905 return -EINVAL;
13ae75b1
JM		 5906 }
5907 }
5908
4c476991 5909 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 5910}
5911
2e161f78 5912static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5913{
4c476991
JB		 5914 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5915 struct net_device *dev = info->user_ptr[1];
2e161f78 5916 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 5917
5918 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5919 return -EINVAL;
5920
2e161f78
JB		 5921 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5922 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 5923
9d38d85d 5924 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5925 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5926 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5927 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5928 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5929 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5930 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5931 return -EOPNOTSUPP;
026331c4
JM		 5932
5933 /* not much point in registering if we can't reply */
4c476991
JB		 5934 if (!rdev->ops->mgmt_tx)
5935 return -EOPNOTSUPP;
026331c4 5936
4c476991 5937 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 5938 frame_type,
026331c4
JM		 5939 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5940 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 5941}
5942
2e161f78 5943static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5944{
4c476991
JB		 5945 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5946 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 5947 struct ieee80211_channel *chan;
5948 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 5949 bool channel_type_valid = false;
026331c4
JM		 5950 u32 freq;
5951 int err;
d64d373f 5952 void *hdr = NULL;
026331c4 5953 u64 cookie;
e247bd90 5954 struct sk_buff *msg = NULL;
f7ca38df 5955 unsigned int wait = 0;
e247bd90
JB		 5956 bool offchan, no_cck, dont_wait_for_ack;
5957
5958 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4
JM		 5959
5960 if (!info->attrs[NL80211_ATTR_FRAME] ||
5961 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5962 return -EINVAL;
5963
4c476991
JB		 5964 if (!rdev->ops->mgmt_tx)
5965 return -EOPNOTSUPP;
026331c4 5966
9d38d85d 5967 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5968 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5969 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5970 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5971 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5972 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5973 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5974 return -EOPNOTSUPP;
026331c4 5975
f7ca38df 5976 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 5977 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 5978 return -EINVAL;
5979 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 5980
5981 /*
5982 * We should wait on the channel for at least a minimum amount
5983 * of time (10ms) but no longer than the driver supports.
5984 */
5985 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5986 wait > rdev->wiphy.max_remain_on_channel_duration)
5987 return -EINVAL;
5988
f7ca38df
JB		 5989 }
5990
026331c4 5991 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
cd6c6598 5992 if (!nl80211_valid_channel_type(info, &channel_type))
4c476991 5993 return -EINVAL;
252aa631 5994 channel_type_valid = true;
026331c4
JM		 5995 }
5996
f7ca38df
JB		 5997 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5998
7c4ef712
JB		 5999 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6000 return -EINVAL;
6001
e9f935e3
RM		 6002 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6003
026331c4
JM		 6004 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6005 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 6006 if (chan == NULL)
6007 return -EINVAL;
026331c4 6008
e247bd90
JB		 6009 if (!dont_wait_for_ack) {
6010 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6011 if (!msg)
6012 return -ENOMEM;
026331c4 6013
e247bd90
JB		 6014 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6015 NL80211_CMD_FRAME);
026331c4 6016
e247bd90
JB		 6017 if (IS_ERR(hdr)) {
6018 err = PTR_ERR(hdr);
6019 goto free_msg;
6020 }
026331c4 6021 }
e247bd90 6022
f7ca38df
JB		 6023 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
6024 channel_type_valid, wait,
2e161f78
JB		 6025 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6026 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 6027 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 6028 if (err)
6029 goto free_msg;
6030
e247bd90 6031 if (msg) {
9360ffd1
DM		 6032 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6033 goto nla_put_failure;
026331c4 6034
e247bd90
JB		 6035 genlmsg_end(msg, hdr);
6036 return genlmsg_reply(msg, info);
6037 }
6038
6039 return 0;
026331c4
JM		 6040
6041 nla_put_failure:
6042 err = -ENOBUFS;
6043 free_msg:
6044 nlmsg_free(msg);
026331c4
JM		 6045 return err;
6046}
6047
f7ca38df
JB		 6048static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6049{
6050 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6051 struct net_device *dev = info->user_ptr[1];
6052 u64 cookie;
6053
6054 if (!info->attrs[NL80211_ATTR_COOKIE])
6055 return -EINVAL;
6056
6057 if (!rdev->ops->mgmt_tx_cancel_wait)
6058 return -EOPNOTSUPP;
6059
6060 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6061 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6062 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
6063 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6064 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
6065 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
6066 return -EOPNOTSUPP;
6067
6068 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6069
6070 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
6071}
6072
ffb9eb3d
KV		 6073static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6074{
4c476991 6075 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 6076 struct wireless_dev *wdev;
4c476991 6077 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6078 u8 ps_state;
6079 bool state;
6080 int err;
6081
4c476991
JB		 6082 if (!info->attrs[NL80211_ATTR_PS_STATE])
6083 return -EINVAL;
ffb9eb3d
KV		 6084
6085 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6086
4c476991
JB		 6087 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6088 return -EINVAL;
ffb9eb3d
KV		 6089
6090 wdev = dev->ieee80211_ptr;
6091
4c476991
JB		 6092 if (!rdev->ops->set_power_mgmt)
6093 return -EOPNOTSUPP;
ffb9eb3d
KV		 6094
6095 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6096
6097 if (state == wdev->ps)
4c476991 6098 return 0;
ffb9eb3d 6099
4c476991
JB		 6100 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6101 wdev->ps_timeout);
6102 if (!err)
6103 wdev->ps = state;
ffb9eb3d
KV		 6104 return err;
6105}
6106
6107static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6108{
4c476991 6109 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 6110 enum nl80211_ps_state ps_state;
6111 struct wireless_dev *wdev;
4c476991 6112 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6113 struct sk_buff *msg;
6114 void *hdr;
6115 int err;
6116
ffb9eb3d
KV		 6117 wdev = dev->ieee80211_ptr;
6118
4c476991
JB		 6119 if (!rdev->ops->set_power_mgmt)
6120 return -EOPNOTSUPP;
ffb9eb3d
KV		 6121
6122 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6123 if (!msg)
6124 return -ENOMEM;
ffb9eb3d
KV		 6125
6126 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6127 NL80211_CMD_GET_POWER_SAVE);
6128 if (!hdr) {
4c476991 6129 err = -ENOBUFS;
ffb9eb3d
KV		 6130 goto free_msg;
6131 }
6132
6133 if (wdev->ps)
6134 ps_state = NL80211_PS_ENABLED;
6135 else
6136 ps_state = NL80211_PS_DISABLED;
6137
9360ffd1
DM		 6138 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6139 goto nla_put_failure;
ffb9eb3d
KV		 6140
6141 genlmsg_end(msg, hdr);
4c476991 6142 return genlmsg_reply(msg, info);
ffb9eb3d 6143
4c476991 6144 nla_put_failure:
ffb9eb3d 6145 err = -ENOBUFS;
4c476991 6146 free_msg:
ffb9eb3d 6147 nlmsg_free(msg);
ffb9eb3d
KV		 6148 return err;
6149}
6150
d6dc1a38
JO		 6151static struct nla_policy
6152nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6153 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6154 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6155 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6156};
6157
6158static int nl80211_set_cqm_rssi(struct genl_info *info,
6159 s32 threshold, u32 hysteresis)
6160{
4c476991 6161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 6162 struct wireless_dev *wdev;
4c476991 6163 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 6164
6165 if (threshold > 0)
6166 return -EINVAL;
6167
d6dc1a38
JO		 6168 wdev = dev->ieee80211_ptr;
6169
4c476991
JB		 6170 if (!rdev->ops->set_cqm_rssi_config)
6171 return -EOPNOTSUPP;
d6dc1a38 6172
074ac8df 6173 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6174 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6175 return -EOPNOTSUPP;
d6dc1a38 6176
4c476991
JB		 6177 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6178 threshold, hysteresis);
d6dc1a38
JO		 6179}
6180
6181static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6182{
6183 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6184 struct nlattr *cqm;
6185 int err;
6186
6187 cqm = info->attrs[NL80211_ATTR_CQM];
6188 if (!cqm) {
6189 err = -EINVAL;
6190 goto out;
6191 }
6192
6193 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6194 nl80211_attr_cqm_policy);
6195 if (err)
6196 goto out;
6197
6198 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6199 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6200 s32 threshold;
6201 u32 hysteresis;
6202 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6203 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6204 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6205 } else
6206 err = -EINVAL;
6207
6208out:
6209 return err;
6210}
6211
29cbe68c
JB		 6212static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6213{
6214 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6215 struct net_device *dev = info->user_ptr[1];
6216 struct mesh_config cfg;
c80d545d 6217 struct mesh_setup setup;
29cbe68c
JB		 6218 int err;
6219
6220 /* start with default */
6221 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 6222 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 6223
24bdd9f4 6224 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 6225 /* and parse parameters if given */
24bdd9f4 6226 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 6227 if (err)
6228 return err;
6229 }
6230
6231 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6232 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6233 return -EINVAL;
6234
c80d545d
JC		 6235 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6236 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6237
4bb62344
CYY		 6238 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6239 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6240 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6241 return -EINVAL;
6242
c80d545d
JC		 6243 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6244 /* parse additional setup parameters if given */
6245 err = nl80211_parse_mesh_setup(info, &setup);
6246 if (err)
6247 return err;
6248 }
6249
cc1d2806
JB		 6250 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6251 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6252
6253 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6254 !nl80211_valid_channel_type(info, &channel_type))
6255 return -EINVAL;
6256
6257 setup.channel = rdev_freq_to_chan(rdev,
6258 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6259 channel_type);
6260 if (!setup.channel)
6261 return -EINVAL;
6262 setup.channel_type = channel_type;
6263 } else {
6264 /* cfg80211_join_mesh() will sort it out */
6265 setup.channel = NULL;
6266 }
6267
c80d545d 6268 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 6269}
6270
6271static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6272{
6273 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6274 struct net_device *dev = info->user_ptr[1];
6275
6276 return cfg80211_leave_mesh(rdev, dev);
6277}
6278
dfb89c56 6279#ifdef CONFIG_PM
ff1b6e69
JB		 6280static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6281{
6282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6283 struct sk_buff *msg;
6284 void *hdr;
6285
6286 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6287 return -EOPNOTSUPP;
6288
6289 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6290 if (!msg)
6291 return -ENOMEM;
6292
6293 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6294 NL80211_CMD_GET_WOWLAN);
6295 if (!hdr)
6296 goto nla_put_failure;
6297
6298 if (rdev->wowlan) {
6299 struct nlattr *nl_wowlan;
6300
6301 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6302 if (!nl_wowlan)
6303 goto nla_put_failure;
6304
9360ffd1
DM		 6305 if ((rdev->wowlan->any &&
6306 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6307 (rdev->wowlan->disconnect &&
6308 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6309 (rdev->wowlan->magic_pkt &&
6310 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6311 (rdev->wowlan->gtk_rekey_failure &&
6312 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6313 (rdev->wowlan->eap_identity_req &&
6314 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6315 (rdev->wowlan->four_way_handshake &&
6316 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6317 (rdev->wowlan->rfkill_release &&
6318 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6319 goto nla_put_failure;
ff1b6e69
JB		 6320 if (rdev->wowlan->n_patterns) {
6321 struct nlattr *nl_pats, *nl_pat;
6322 int i, pat_len;
6323
6324 nl_pats = nla_nest_start(msg,
6325 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6326 if (!nl_pats)
6327 goto nla_put_failure;
6328
6329 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6330 nl_pat = nla_nest_start(msg, i + 1);
6331 if (!nl_pat)
6332 goto nla_put_failure;
6333 pat_len = rdev->wowlan->patterns[i].pattern_len;
9360ffd1
DM		 6334 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6335 DIV_ROUND_UP(pat_len, 8),
6336 rdev->wowlan->patterns[i].mask) ||
6337 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6338 pat_len,
6339 rdev->wowlan->patterns[i].pattern))
6340 goto nla_put_failure;
ff1b6e69
JB		 6341 nla_nest_end(msg, nl_pat);
6342 }
6343 nla_nest_end(msg, nl_pats);
6344 }
6345
6346 nla_nest_end(msg, nl_wowlan);
6347 }
6348
6349 genlmsg_end(msg, hdr);
6350 return genlmsg_reply(msg, info);
6351
6352nla_put_failure:
6353 nlmsg_free(msg);
6354 return -ENOBUFS;
6355}
6356
6357static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6358{
6359 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6360 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6361 struct cfg80211_wowlan no_triggers = {};
6362 struct cfg80211_wowlan new_triggers = {};
6363 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6364 int err, i;
6d52563f 6365 bool prev_enabled = rdev->wowlan;
ff1b6e69
JB		 6366
6367 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6368 return -EOPNOTSUPP;
6369
6370 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6371 goto no_triggers;
6372
6373 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6374 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6375 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6376 nl80211_wowlan_policy);
6377 if (err)
6378 return err;
6379
6380 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6381 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6382 return -EINVAL;
6383 new_triggers.any = true;
6384 }
6385
6386 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6387 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6388 return -EINVAL;
6389 new_triggers.disconnect = true;
6390 }
6391
6392 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6393 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6394 return -EINVAL;
6395 new_triggers.magic_pkt = true;
6396 }
6397
77dbbb13
JB		 6398 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6399 return -EINVAL;
6400
6401 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6402 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6403 return -EINVAL;
6404 new_triggers.gtk_rekey_failure = true;
6405 }
6406
6407 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6408 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6409 return -EINVAL;
6410 new_triggers.eap_identity_req = true;
6411 }
6412
6413 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6414 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6415 return -EINVAL;
6416 new_triggers.four_way_handshake = true;
6417 }
6418
6419 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6420 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6421 return -EINVAL;
6422 new_triggers.rfkill_release = true;
6423 }
6424
ff1b6e69
JB		 6425 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6426 struct nlattr *pat;
6427 int n_patterns = 0;
6428 int rem, pat_len, mask_len;
6429 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6430
6431 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6432 rem)
6433 n_patterns++;
6434 if (n_patterns > wowlan->n_patterns)
6435 return -EINVAL;
6436
6437 new_triggers.patterns = kcalloc(n_patterns,
6438 sizeof(new_triggers.patterns[0]),
6439 GFP_KERNEL);
6440 if (!new_triggers.patterns)
6441 return -ENOMEM;
6442
6443 new_triggers.n_patterns = n_patterns;
6444 i = 0;
6445
6446 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6447 rem) {
6448 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6449 nla_data(pat), nla_len(pat), NULL);
6450 err = -EINVAL;
6451 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6452 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6453 goto error;
6454 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6455 mask_len = DIV_ROUND_UP(pat_len, 8);
6456 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6457 mask_len)
6458 goto error;
6459 if (pat_len > wowlan->pattern_max_len ||
6460 pat_len < wowlan->pattern_min_len)
6461 goto error;
6462
6463 new_triggers.patterns[i].mask =
6464 kmalloc(mask_len + pat_len, GFP_KERNEL);
6465 if (!new_triggers.patterns[i].mask) {
6466 err = -ENOMEM;
6467 goto error;
6468 }
6469 new_triggers.patterns[i].pattern =
6470 new_triggers.patterns[i].mask + mask_len;
6471 memcpy(new_triggers.patterns[i].mask,
6472 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6473 mask_len);
6474 new_triggers.patterns[i].pattern_len = pat_len;
6475 memcpy(new_triggers.patterns[i].pattern,
6476 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6477 pat_len);
6478 i++;
6479 }
6480 }
6481
6482 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6483 struct cfg80211_wowlan *ntrig;
6484 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6485 GFP_KERNEL);
6486 if (!ntrig) {
6487 err = -ENOMEM;
6488 goto error;
6489 }
6490 cfg80211_rdev_free_wowlan(rdev);
6491 rdev->wowlan = ntrig;
6492 } else {
6493 no_triggers:
6494 cfg80211_rdev_free_wowlan(rdev);
6495 rdev->wowlan = NULL;
6496 }
6497
6d52563f
JB		 6498 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6499 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6500
ff1b6e69
JB		 6501 return 0;
6502 error:
6503 for (i = 0; i < new_triggers.n_patterns; i++)
6504 kfree(new_triggers.patterns[i].mask);
6505 kfree(new_triggers.patterns);
6506 return err;
6507}
dfb89c56 6508#endif
ff1b6e69 6509
e5497d76
JB		 6510static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6511{
6512 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6513 struct net_device *dev = info->user_ptr[1];
6514 struct wireless_dev *wdev = dev->ieee80211_ptr;
6515 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6516 struct cfg80211_gtk_rekey_data rekey_data;
6517 int err;
6518
6519 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6520 return -EINVAL;
6521
6522 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6523 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6524 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6525 nl80211_rekey_policy);
6526 if (err)
6527 return err;
6528
6529 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6530 return -ERANGE;
6531 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6532 return -ERANGE;
6533 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6534 return -ERANGE;
6535
6536 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6537 NL80211_KEK_LEN);
6538 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6539 NL80211_KCK_LEN);
6540 memcpy(rekey_data.replay_ctr,
6541 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6542 NL80211_REPLAY_CTR_LEN);
6543
6544 wdev_lock(wdev);
6545 if (!wdev->current_bss) {
6546 err = -ENOTCONN;
6547 goto out;
6548 }
6549
6550 if (!rdev->ops->set_rekey_data) {
6551 err = -EOPNOTSUPP;
6552 goto out;
6553 }
6554
6555 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6556 out:
6557 wdev_unlock(wdev);
6558 return err;
6559}
6560
28946da7
JB		 6561static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6562 struct genl_info *info)
6563{
6564 struct net_device *dev = info->user_ptr[1];
6565 struct wireless_dev *wdev = dev->ieee80211_ptr;
6566
6567 if (wdev->iftype != NL80211_IFTYPE_AP &&
6568 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6569 return -EINVAL;
6570
6571 if (wdev->ap_unexpected_nlpid)
6572 return -EBUSY;
6573
6574 wdev->ap_unexpected_nlpid = info->snd_pid;
6575 return 0;
6576}
6577
7f6cf311
JB		 6578static int nl80211_probe_client(struct sk_buff *skb,
6579 struct genl_info *info)
6580{
6581 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6582 struct net_device *dev = info->user_ptr[1];
6583 struct wireless_dev *wdev = dev->ieee80211_ptr;
6584 struct sk_buff *msg;
6585 void *hdr;
6586 const u8 *addr;
6587 u64 cookie;
6588 int err;
6589
6590 if (wdev->iftype != NL80211_IFTYPE_AP &&
6591 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6592 return -EOPNOTSUPP;
6593
6594 if (!info->attrs[NL80211_ATTR_MAC])
6595 return -EINVAL;
6596
6597 if (!rdev->ops->probe_client)
6598 return -EOPNOTSUPP;
6599
6600 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6601 if (!msg)
6602 return -ENOMEM;
6603
6604 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6605 NL80211_CMD_PROBE_CLIENT);
6606
6607 if (IS_ERR(hdr)) {
6608 err = PTR_ERR(hdr);
6609 goto free_msg;
6610 }
6611
6612 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6613
6614 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6615 if (err)
6616 goto free_msg;
6617
9360ffd1
DM		 6618 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6619 goto nla_put_failure;
7f6cf311
JB		 6620
6621 genlmsg_end(msg, hdr);
6622
6623 return genlmsg_reply(msg, info);
6624
6625 nla_put_failure:
6626 err = -ENOBUFS;
6627 free_msg:
6628 nlmsg_free(msg);
6629 return err;
6630}
6631
5e760230
JB		 6632static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6633{
6634 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6635
6636 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6637 return -EOPNOTSUPP;
6638
6639 if (rdev->ap_beacons_nlpid)
6640 return -EBUSY;
6641
6642 rdev->ap_beacons_nlpid = info->snd_pid;
6643
6644 return 0;
6645}
6646
4c476991
JB		 6647#define NL80211_FLAG_NEED_WIPHY 0x01
6648#define NL80211_FLAG_NEED_NETDEV 0x02
6649#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 6650#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6651#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6652 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 6653
6654static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6655 struct genl_info *info)
6656{
6657 struct cfg80211_registered_device *rdev;
6658 struct net_device *dev;
6659 int err;
6660 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6661
6662 if (rtnl)
6663 rtnl_lock();
6664
6665 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 6666 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 6667 if (IS_ERR(rdev)) {
6668 if (rtnl)
6669 rtnl_unlock();
6670 return PTR_ERR(rdev);
6671 }
6672 info->user_ptr[0] = rdev;
6673 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
00918d33
JB		 6674 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6675 &rdev, &dev);
4c476991
JB		 6676 if (err) {
6677 if (rtnl)
6678 rtnl_unlock();
6679 return err;
6680 }
41265714
JB		 6681 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6682 !netif_running(dev)) {
d537f5fd
JB		 6683 cfg80211_unlock_rdev(rdev);
6684 dev_put(dev);
41265714
JB		 6685 if (rtnl)
6686 rtnl_unlock();
6687 return -ENETDOWN;
6688 }
4c476991
JB		 6689 info->user_ptr[0] = rdev;
6690 info->user_ptr[1] = dev;
6691 }
6692
6693 return 0;
6694}
6695
6696static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6697 struct genl_info *info)
6698{
6699 if (info->user_ptr[0])
6700 cfg80211_unlock_rdev(info->user_ptr[0]);
6701 if (info->user_ptr[1])
6702 dev_put(info->user_ptr[1]);
6703 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6704 rtnl_unlock();
6705}
6706
55682965
JB		 6707static struct genl_ops nl80211_ops[] = {
6708 {
6709 .cmd = NL80211_CMD_GET_WIPHY,
6710 .doit = nl80211_get_wiphy,
6711 .dumpit = nl80211_dump_wiphy,
6712 .policy = nl80211_policy,
6713 /* can be retrieved by unprivileged users */
4c476991 6714 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 6715 },
6716 {
6717 .cmd = NL80211_CMD_SET_WIPHY,
6718 .doit = nl80211_set_wiphy,
6719 .policy = nl80211_policy,
6720 .flags = GENL_ADMIN_PERM,
4c476991 6721 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 6722 },
6723 {
6724 .cmd = NL80211_CMD_GET_INTERFACE,
6725 .doit = nl80211_get_interface,
6726 .dumpit = nl80211_dump_interface,
6727 .policy = nl80211_policy,
6728 /* can be retrieved by unprivileged users */
4c476991 6729 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 6730 },
6731 {
6732 .cmd = NL80211_CMD_SET_INTERFACE,
6733 .doit = nl80211_set_interface,
6734 .policy = nl80211_policy,
6735 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6736 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6737 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6738 },
6739 {
6740 .cmd = NL80211_CMD_NEW_INTERFACE,
6741 .doit = nl80211_new_interface,
6742 .policy = nl80211_policy,
6743 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6744 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6745 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6746 },
6747 {
6748 .cmd = NL80211_CMD_DEL_INTERFACE,
6749 .doit = nl80211_del_interface,
6750 .policy = nl80211_policy,
41ade00f 6751 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6752 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6753 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6754 },
6755 {
6756 .cmd = NL80211_CMD_GET_KEY,
6757 .doit = nl80211_get_key,
6758 .policy = nl80211_policy,
6759 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6760 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6761 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6762 },
6763 {
6764 .cmd = NL80211_CMD_SET_KEY,
6765 .doit = nl80211_set_key,
6766 .policy = nl80211_policy,
6767 .flags = GENL_ADMIN_PERM,
41265714 6768 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6769 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6770 },
6771 {
6772 .cmd = NL80211_CMD_NEW_KEY,
6773 .doit = nl80211_new_key,
6774 .policy = nl80211_policy,
6775 .flags = GENL_ADMIN_PERM,
41265714 6776 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6777 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6778 },
6779 {
6780 .cmd = NL80211_CMD_DEL_KEY,
6781 .doit = nl80211_del_key,
6782 .policy = nl80211_policy,
55682965 6783 .flags = GENL_ADMIN_PERM,
41265714 6784 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6785 NL80211_FLAG_NEED_RTNL,
55682965 6786 },
ed1b6cc7
JB		 6787 {
6788 .cmd = NL80211_CMD_SET_BEACON,
6789 .policy = nl80211_policy,
6790 .flags = GENL_ADMIN_PERM,
8860020e 6791 .doit = nl80211_set_beacon,
2b5f8b0b 6792 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6793 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6794 },
6795 {
8860020e 6796 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 6797 .policy = nl80211_policy,
6798 .flags = GENL_ADMIN_PERM,
8860020e 6799 .doit = nl80211_start_ap,
2b5f8b0b 6800 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6801 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6802 },
6803 {
8860020e 6804 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 6805 .policy = nl80211_policy,
6806 .flags = GENL_ADMIN_PERM,
8860020e 6807 .doit = nl80211_stop_ap,
2b5f8b0b 6808 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6809 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 6810 },
5727ef1b
JB		 6811 {
6812 .cmd = NL80211_CMD_GET_STATION,
6813 .doit = nl80211_get_station,
2ec600d6 6814 .dumpit = nl80211_dump_station,
5727ef1b 6815 .policy = nl80211_policy,
4c476991
JB		 6816 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6817 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6818 },
6819 {
6820 .cmd = NL80211_CMD_SET_STATION,
6821 .doit = nl80211_set_station,
6822 .policy = nl80211_policy,
6823 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6824 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6825 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6826 },
6827 {
6828 .cmd = NL80211_CMD_NEW_STATION,
6829 .doit = nl80211_new_station,
6830 .policy = nl80211_policy,
6831 .flags = GENL_ADMIN_PERM,
41265714 6832 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6833 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6834 },
6835 {
6836 .cmd = NL80211_CMD_DEL_STATION,
6837 .doit = nl80211_del_station,
6838 .policy = nl80211_policy,
2ec600d6 6839 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6840 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6841 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6842 },
6843 {
6844 .cmd = NL80211_CMD_GET_MPATH,
6845 .doit = nl80211_get_mpath,
6846 .dumpit = nl80211_dump_mpath,
6847 .policy = nl80211_policy,
6848 .flags = GENL_ADMIN_PERM,
41265714 6849 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6850 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6851 },
6852 {
6853 .cmd = NL80211_CMD_SET_MPATH,
6854 .doit = nl80211_set_mpath,
6855 .policy = nl80211_policy,
6856 .flags = GENL_ADMIN_PERM,
41265714 6857 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6858 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6859 },
6860 {
6861 .cmd = NL80211_CMD_NEW_MPATH,
6862 .doit = nl80211_new_mpath,
6863 .policy = nl80211_policy,
6864 .flags = GENL_ADMIN_PERM,
41265714 6865 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6866 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6867 },
6868 {
6869 .cmd = NL80211_CMD_DEL_MPATH,
6870 .doit = nl80211_del_mpath,
6871 .policy = nl80211_policy,
9f1ba906 6872 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6873 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6874 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 6875 },
6876 {
6877 .cmd = NL80211_CMD_SET_BSS,
6878 .doit = nl80211_set_bss,
6879 .policy = nl80211_policy,
b2e1b302 6880 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6881 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6882 NL80211_FLAG_NEED_RTNL,
b2e1b302 6883 },
f130347c
LR		 6884 {
6885 .cmd = NL80211_CMD_GET_REG,
6886 .doit = nl80211_get_reg,
6887 .policy = nl80211_policy,
6888 /* can be retrieved by unprivileged users */
6889 },
b2e1b302
LR		 6890 {
6891 .cmd = NL80211_CMD_SET_REG,
6892 .doit = nl80211_set_reg,
6893 .policy = nl80211_policy,
6894 .flags = GENL_ADMIN_PERM,
6895 },
6896 {
6897 .cmd = NL80211_CMD_REQ_SET_REG,
6898 .doit = nl80211_req_set_reg,
6899 .policy = nl80211_policy,
93da9cc1 6900 .flags = GENL_ADMIN_PERM,
6901 },
6902 {
24bdd9f4
JC		 6903 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6904 .doit = nl80211_get_mesh_config,
93da9cc1 6905 .policy = nl80211_policy,
6906 /* can be retrieved by unprivileged users */
2b5f8b0b 6907 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6908 NL80211_FLAG_NEED_RTNL,
93da9cc1 6909 },
6910 {
24bdd9f4
JC		 6911 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6912 .doit = nl80211_update_mesh_config,
93da9cc1 6913 .policy = nl80211_policy,
9aed3cc1 6914 .flags = GENL_ADMIN_PERM,
29cbe68c 6915 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6916 NL80211_FLAG_NEED_RTNL,
9aed3cc1 6917 },
2a519311
JB		 6918 {
6919 .cmd = NL80211_CMD_TRIGGER_SCAN,
6920 .doit = nl80211_trigger_scan,
6921 .policy = nl80211_policy,
6922 .flags = GENL_ADMIN_PERM,
41265714 6923 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6924 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 6925 },
6926 {
6927 .cmd = NL80211_CMD_GET_SCAN,
6928 .policy = nl80211_policy,
6929 .dumpit = nl80211_dump_scan,
6930 },
807f8a8c
LC		 6931 {
6932 .cmd = NL80211_CMD_START_SCHED_SCAN,
6933 .doit = nl80211_start_sched_scan,
6934 .policy = nl80211_policy,
6935 .flags = GENL_ADMIN_PERM,
6936 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6937 NL80211_FLAG_NEED_RTNL,
6938 },
6939 {
6940 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6941 .doit = nl80211_stop_sched_scan,
6942 .policy = nl80211_policy,
6943 .flags = GENL_ADMIN_PERM,
6944 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6945 NL80211_FLAG_NEED_RTNL,
6946 },
636a5d36
JM		 6947 {
6948 .cmd = NL80211_CMD_AUTHENTICATE,
6949 .doit = nl80211_authenticate,
6950 .policy = nl80211_policy,
6951 .flags = GENL_ADMIN_PERM,
41265714 6952 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6953 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6954 },
6955 {
6956 .cmd = NL80211_CMD_ASSOCIATE,
6957 .doit = nl80211_associate,
6958 .policy = nl80211_policy,
6959 .flags = GENL_ADMIN_PERM,
41265714 6960 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6961 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6962 },
6963 {
6964 .cmd = NL80211_CMD_DEAUTHENTICATE,
6965 .doit = nl80211_deauthenticate,
6966 .policy = nl80211_policy,
6967 .flags = GENL_ADMIN_PERM,
41265714 6968 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6969 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6970 },
6971 {
6972 .cmd = NL80211_CMD_DISASSOCIATE,
6973 .doit = nl80211_disassociate,
6974 .policy = nl80211_policy,
6975 .flags = GENL_ADMIN_PERM,
41265714 6976 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6977 NL80211_FLAG_NEED_RTNL,
636a5d36 6978 },
04a773ad
JB		 6979 {
6980 .cmd = NL80211_CMD_JOIN_IBSS,
6981 .doit = nl80211_join_ibss,
6982 .policy = nl80211_policy,
6983 .flags = GENL_ADMIN_PERM,
41265714 6984 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6985 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 6986 },
6987 {
6988 .cmd = NL80211_CMD_LEAVE_IBSS,
6989 .doit = nl80211_leave_ibss,
6990 .policy = nl80211_policy,
6991 .flags = GENL_ADMIN_PERM,
41265714 6992 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6993 NL80211_FLAG_NEED_RTNL,
04a773ad 6994 },
aff89a9b
JB		 6995#ifdef CONFIG_NL80211_TESTMODE
6996 {
6997 .cmd = NL80211_CMD_TESTMODE,
6998 .doit = nl80211_testmode_do,
71063f0e 6999 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 7000 .policy = nl80211_policy,
7001 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7002 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7003 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 7004 },
7005#endif
b23aa676
SO		 7006 {
7007 .cmd = NL80211_CMD_CONNECT,
7008 .doit = nl80211_connect,
7009 .policy = nl80211_policy,
7010 .flags = GENL_ADMIN_PERM,
41265714 7011 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7012 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 7013 },
7014 {
7015 .cmd = NL80211_CMD_DISCONNECT,
7016 .doit = nl80211_disconnect,
7017 .policy = nl80211_policy,
7018 .flags = GENL_ADMIN_PERM,
41265714 7019 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7020 NL80211_FLAG_NEED_RTNL,
b23aa676 7021 },
463d0183
JB		 7022 {
7023 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7024 .doit = nl80211_wiphy_netns,
7025 .policy = nl80211_policy,
7026 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7027 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7028 NL80211_FLAG_NEED_RTNL,
463d0183 7029 },
61fa713c
HS		 7030 {
7031 .cmd = NL80211_CMD_GET_SURVEY,
7032 .policy = nl80211_policy,
7033 .dumpit = nl80211_dump_survey,
7034 },
67fbb16b
SO		 7035 {
7036 .cmd = NL80211_CMD_SET_PMKSA,
7037 .doit = nl80211_setdel_pmksa,
7038 .policy = nl80211_policy,
7039 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7040 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7041 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7042 },
7043 {
7044 .cmd = NL80211_CMD_DEL_PMKSA,
7045 .doit = nl80211_setdel_pmksa,
7046 .policy = nl80211_policy,
7047 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7048 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7049 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7050 },
7051 {
7052 .cmd = NL80211_CMD_FLUSH_PMKSA,
7053 .doit = nl80211_flush_pmksa,
7054 .policy = nl80211_policy,
7055 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7056 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7057 NL80211_FLAG_NEED_RTNL,
67fbb16b 7058 },
9588bbd5
JM		 7059 {
7060 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7061 .doit = nl80211_remain_on_channel,
7062 .policy = nl80211_policy,
7063 .flags = GENL_ADMIN_PERM,
41265714 7064 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7065 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 7066 },
7067 {
7068 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7069 .doit = nl80211_cancel_remain_on_channel,
7070 .policy = nl80211_policy,
7071 .flags = GENL_ADMIN_PERM,
41265714 7072 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7073 NL80211_FLAG_NEED_RTNL,
9588bbd5 7074 },
13ae75b1
JM		 7075 {
7076 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7077 .doit = nl80211_set_tx_bitrate_mask,
7078 .policy = nl80211_policy,
7079 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7080 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7081 NL80211_FLAG_NEED_RTNL,
13ae75b1 7082 },
026331c4 7083 {
2e161f78
JB		 7084 .cmd = NL80211_CMD_REGISTER_FRAME,
7085 .doit = nl80211_register_mgmt,
026331c4
JM		 7086 .policy = nl80211_policy,
7087 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7088 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7089 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 7090 },
7091 {
2e161f78
JB		 7092 .cmd = NL80211_CMD_FRAME,
7093 .doit = nl80211_tx_mgmt,
026331c4 7094 .policy = nl80211_policy,
f7ca38df
JB		 7095 .flags = GENL_ADMIN_PERM,
7096 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7097 NL80211_FLAG_NEED_RTNL,
7098 },
7099 {
7100 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7101 .doit = nl80211_tx_mgmt_cancel_wait,
7102 .policy = nl80211_policy,
026331c4 7103 .flags = GENL_ADMIN_PERM,
41265714 7104 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7105 NL80211_FLAG_NEED_RTNL,
026331c4 7106 },
ffb9eb3d
KV		 7107 {
7108 .cmd = NL80211_CMD_SET_POWER_SAVE,
7109 .doit = nl80211_set_power_save,
7110 .policy = nl80211_policy,
7111 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7112 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7113 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 7114 },
7115 {
7116 .cmd = NL80211_CMD_GET_POWER_SAVE,
7117 .doit = nl80211_get_power_save,
7118 .policy = nl80211_policy,
7119 /* can be retrieved by unprivileged users */
4c476991
JB		 7120 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7121 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 7122 },
d6dc1a38
JO		 7123 {
7124 .cmd = NL80211_CMD_SET_CQM,
7125 .doit = nl80211_set_cqm,
7126 .policy = nl80211_policy,
7127 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7128 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7129 NL80211_FLAG_NEED_RTNL,
d6dc1a38 7130 },
f444de05
JB		 7131 {
7132 .cmd = NL80211_CMD_SET_CHANNEL,
7133 .doit = nl80211_set_channel,
7134 .policy = nl80211_policy,
7135 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7136 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7137 NL80211_FLAG_NEED_RTNL,
f444de05 7138 },
e8347eba
BJ		 7139 {
7140 .cmd = NL80211_CMD_SET_WDS_PEER,
7141 .doit = nl80211_set_wds_peer,
7142 .policy = nl80211_policy,
7143 .flags = GENL_ADMIN_PERM,
43b19952
JB		 7144 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7145 NL80211_FLAG_NEED_RTNL,
e8347eba 7146 },
29cbe68c
JB		 7147 {
7148 .cmd = NL80211_CMD_JOIN_MESH,
7149 .doit = nl80211_join_mesh,
7150 .policy = nl80211_policy,
7151 .flags = GENL_ADMIN_PERM,
7152 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7153 NL80211_FLAG_NEED_RTNL,
7154 },
7155 {
7156 .cmd = NL80211_CMD_LEAVE_MESH,
7157 .doit = nl80211_leave_mesh,
7158 .policy = nl80211_policy,
7159 .flags = GENL_ADMIN_PERM,
7160 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7161 NL80211_FLAG_NEED_RTNL,
7162 },
dfb89c56 7163#ifdef CONFIG_PM
ff1b6e69
JB		 7164 {
7165 .cmd = NL80211_CMD_GET_WOWLAN,
7166 .doit = nl80211_get_wowlan,
7167 .policy = nl80211_policy,
7168 /* can be retrieved by unprivileged users */
7169 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7170 NL80211_FLAG_NEED_RTNL,
7171 },
7172 {
7173 .cmd = NL80211_CMD_SET_WOWLAN,
7174 .doit = nl80211_set_wowlan,
7175 .policy = nl80211_policy,
7176 .flags = GENL_ADMIN_PERM,
7177 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7178 NL80211_FLAG_NEED_RTNL,
7179 },
dfb89c56 7180#endif
e5497d76
JB		 7181 {
7182 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7183 .doit = nl80211_set_rekey_data,
7184 .policy = nl80211_policy,
7185 .flags = GENL_ADMIN_PERM,
7186 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7187 NL80211_FLAG_NEED_RTNL,
7188 },
109086ce
AN		 7189 {
7190 .cmd = NL80211_CMD_TDLS_MGMT,
7191 .doit = nl80211_tdls_mgmt,
7192 .policy = nl80211_policy,
7193 .flags = GENL_ADMIN_PERM,
7194 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7195 NL80211_FLAG_NEED_RTNL,
7196 },
7197 {
7198 .cmd = NL80211_CMD_TDLS_OPER,
7199 .doit = nl80211_tdls_oper,
7200 .policy = nl80211_policy,
7201 .flags = GENL_ADMIN_PERM,
7202 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7203 NL80211_FLAG_NEED_RTNL,
7204 },
28946da7
JB		 7205 {
7206 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7207 .doit = nl80211_register_unexpected_frame,
7208 .policy = nl80211_policy,
7209 .flags = GENL_ADMIN_PERM,
7210 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7211 NL80211_FLAG_NEED_RTNL,
7212 },
7f6cf311
JB		 7213 {
7214 .cmd = NL80211_CMD_PROBE_CLIENT,
7215 .doit = nl80211_probe_client,
7216 .policy = nl80211_policy,
7217 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7218 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 7219 NL80211_FLAG_NEED_RTNL,
7220 },
5e760230
JB		 7221 {
7222 .cmd = NL80211_CMD_REGISTER_BEACONS,
7223 .doit = nl80211_register_beacons,
7224 .policy = nl80211_policy,
7225 .flags = GENL_ADMIN_PERM,
7226 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7227 NL80211_FLAG_NEED_RTNL,
7228 },
1d9d9213
SW		 7229 {
7230 .cmd = NL80211_CMD_SET_NOACK_MAP,
7231 .doit = nl80211_set_noack_map,
7232 .policy = nl80211_policy,
7233 .flags = GENL_ADMIN_PERM,
7234 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7235 NL80211_FLAG_NEED_RTNL,
7236 },
7237
55682965 7238};
9588bbd5 7239
6039f6d2
JM		 7240static struct genl_multicast_group nl80211_mlme_mcgrp = {
7241 .name = "mlme",
7242};
55682965
JB		 7243
7244/* multicast groups */
7245static struct genl_multicast_group nl80211_config_mcgrp = {
7246 .name = "config",
7247};
2a519311
JB		 7248static struct genl_multicast_group nl80211_scan_mcgrp = {
7249 .name = "scan",
7250};
73d54c9e
LR		 7251static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7252 .name = "regulatory",
7253};
55682965
JB		 7254
7255/* notification functions */
7256
7257void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7258{
7259 struct sk_buff *msg;
7260
fd2120ca 7261 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 7262 if (!msg)
7263 return;
7264
7265 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7266 nlmsg_free(msg);
7267 return;
7268 }
7269
463d0183
JB		 7270 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7271 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 7272}
7273
362a415d
JB		 7274static int nl80211_add_scan_req(struct sk_buff *msg,
7275 struct cfg80211_registered_device *rdev)
7276{
7277 struct cfg80211_scan_request *req = rdev->scan_req;
7278 struct nlattr *nest;
7279 int i;
7280
667503dd
JB		 7281 ASSERT_RDEV_LOCK(rdev);
7282
362a415d
JB		 7283 if (WARN_ON(!req))
7284 return 0;
7285
7286 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7287 if (!nest)
7288 goto nla_put_failure;
9360ffd1
DM		 7289 for (i = 0; i < req->n_ssids; i++) {
7290 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7291 goto nla_put_failure;
7292 }
362a415d
JB		 7293 nla_nest_end(msg, nest);
7294
7295 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7296 if (!nest)
7297 goto nla_put_failure;
9360ffd1
DM		 7298 for (i = 0; i < req->n_channels; i++) {
7299 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7300 goto nla_put_failure;
7301 }
362a415d
JB		 7302 nla_nest_end(msg, nest);
7303
9360ffd1
DM		 7304 if (req->ie &&
7305 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7306 goto nla_put_failure;
362a415d
JB		 7307
7308 return 0;
7309 nla_put_failure:
7310 return -ENOBUFS;
7311}
7312
a538e2d5
JB		 7313static int nl80211_send_scan_msg(struct sk_buff *msg,
7314 struct cfg80211_registered_device *rdev,
7315 struct net_device *netdev,
7316 u32 pid, u32 seq, int flags,
7317 u32 cmd)
2a519311
JB		 7318{
7319 void *hdr;
7320
7321 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7322 if (!hdr)
7323 return -1;
7324
9360ffd1
DM		 7325 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7326 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7327 goto nla_put_failure;
2a519311 7328
362a415d
JB		 7329 /* ignore errors and send incomplete event anyway */
7330 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 7331
7332 return genlmsg_end(msg, hdr);
7333
7334 nla_put_failure:
7335 genlmsg_cancel(msg, hdr);
7336 return -EMSGSIZE;
7337}
7338
807f8a8c
LC		 7339static int
7340nl80211_send_sched_scan_msg(struct sk_buff *msg,
7341 struct cfg80211_registered_device *rdev,
7342 struct net_device *netdev,
7343 u32 pid, u32 seq, int flags, u32 cmd)
7344{
7345 void *hdr;
7346
7347 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7348 if (!hdr)
7349 return -1;
7350
9360ffd1
DM		 7351 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7352 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7353 goto nla_put_failure;
807f8a8c
LC		 7354
7355 return genlmsg_end(msg, hdr);
7356
7357 nla_put_failure:
7358 genlmsg_cancel(msg, hdr);
7359 return -EMSGSIZE;
7360}
7361
a538e2d5
JB		 7362void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7363 struct net_device *netdev)
7364{
7365 struct sk_buff *msg;
7366
7367 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7368 if (!msg)
7369 return;
7370
7371 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7372 NL80211_CMD_TRIGGER_SCAN) < 0) {
7373 nlmsg_free(msg);
7374 return;
7375 }
7376
463d0183
JB		 7377 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7378 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 7379}
7380
2a519311
JB		 7381void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7382 struct net_device *netdev)
7383{
7384 struct sk_buff *msg;
7385
fd2120ca 7386 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7387 if (!msg)
7388 return;
7389
a538e2d5
JB		 7390 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7391 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 7392 nlmsg_free(msg);
7393 return;
7394 }
7395
463d0183
JB		 7396 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7397 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7398}
7399
7400void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7401 struct net_device *netdev)
7402{
7403 struct sk_buff *msg;
7404
fd2120ca 7405 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7406 if (!msg)
7407 return;
7408
a538e2d5
JB		 7409 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7410 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 7411 nlmsg_free(msg);
7412 return;
7413 }
7414
463d0183
JB		 7415 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7416 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7417}
7418
807f8a8c
LC		 7419void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7420 struct net_device *netdev)
7421{
7422 struct sk_buff *msg;
7423
7424 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7425 if (!msg)
7426 return;
7427
7428 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7429 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7430 nlmsg_free(msg);
7431 return;
7432 }
7433
7434 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7435 nl80211_scan_mcgrp.id, GFP_KERNEL);
7436}
7437
7438void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7439 struct net_device *netdev, u32 cmd)
7440{
7441 struct sk_buff *msg;
7442
7443 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7444 if (!msg)
7445 return;
7446
7447 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7448 nlmsg_free(msg);
7449 return;
7450 }
7451
7452 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7453 nl80211_scan_mcgrp.id, GFP_KERNEL);
7454}
7455
73d54c9e
LR		 7456/*
7457 * This can happen on global regulatory changes or device specific settings
7458 * based on custom world regulatory domains.
7459 */
7460void nl80211_send_reg_change_event(struct regulatory_request *request)
7461{
7462 struct sk_buff *msg;
7463 void *hdr;
7464
fd2120ca 7465 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 7466 if (!msg)
7467 return;
7468
7469 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7470 if (!hdr) {
7471 nlmsg_free(msg);
7472 return;
7473 }
7474
7475 /* Userspace can always count this one always being set */
9360ffd1
DM		 7476 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7477 goto nla_put_failure;
7478
7479 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7480 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7481 NL80211_REGDOM_TYPE_WORLD))
7482 goto nla_put_failure;
7483 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7484 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7485 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7486 goto nla_put_failure;
7487 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7488 request->intersect) {
7489 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7490 NL80211_REGDOM_TYPE_INTERSECTION))
7491 goto nla_put_failure;
7492 } else {
7493 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7494 NL80211_REGDOM_TYPE_COUNTRY) ||
7495 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7496 request->alpha2))
7497 goto nla_put_failure;
7498 }
7499
7500 if (wiphy_idx_valid(request->wiphy_idx) &&
7501 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7502 goto nla_put_failure;
73d54c9e 7503
3b7b72ee 7504 genlmsg_end(msg, hdr);
73d54c9e 7505
bc43b28c 7506 rcu_read_lock();
463d0183 7507 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 7508 GFP_ATOMIC);
7509 rcu_read_unlock();
73d54c9e
LR		 7510
7511 return;
7512
7513nla_put_failure:
7514 genlmsg_cancel(msg, hdr);
7515 nlmsg_free(msg);
7516}
7517
6039f6d2
JM		 7518static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7519 struct net_device *netdev,
7520 const u8 *buf, size_t len,
e6d6e342 7521 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 7522{
7523 struct sk_buff *msg;
7524 void *hdr;
7525
e6d6e342 7526 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 7527 if (!msg)
7528 return;
7529
7530 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7531 if (!hdr) {
7532 nlmsg_free(msg);
7533 return;
7534 }
7535
9360ffd1
DM		 7536 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7537 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7538 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7539 goto nla_put_failure;
6039f6d2 7540
3b7b72ee 7541 genlmsg_end(msg, hdr);
6039f6d2 7542
463d0183
JB		 7543 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7544 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 7545 return;
7546
7547 nla_put_failure:
7548 genlmsg_cancel(msg, hdr);
7549 nlmsg_free(msg);
7550}
7551
7552void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7553 struct net_device *netdev, const u8 *buf,
7554 size_t len, gfp_t gfp)
6039f6d2
JM		 7555{
7556 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7557 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 7558}
7559
7560void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7561 struct net_device *netdev, const u8 *buf,
e6d6e342 7562 size_t len, gfp_t gfp)
6039f6d2 7563{
e6d6e342
JB		 7564 nl80211_send_mlme_event(rdev, netdev, buf, len,
7565 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 7566}
7567
53b46b84 7568void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7569 struct net_device *netdev, const u8 *buf,
7570 size_t len, gfp_t gfp)
6039f6d2
JM		 7571{
7572 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7573 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 7574}
7575
53b46b84
JM		 7576void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7577 struct net_device *netdev, const u8 *buf,
e6d6e342 7578 size_t len, gfp_t gfp)
6039f6d2
JM		 7579{
7580 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7581 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 7582}
7583
cf4e594e
JM		 7584void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7585 struct net_device *netdev, const u8 *buf,
7586 size_t len, gfp_t gfp)
7587{
7588 nl80211_send_mlme_event(rdev, netdev, buf, len,
7589 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7590}
7591
7592void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7593 struct net_device *netdev, const u8 *buf,
7594 size_t len, gfp_t gfp)
7595{
7596 nl80211_send_mlme_event(rdev, netdev, buf, len,
7597 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7598}
7599
1b06bb40
LR		 7600static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7601 struct net_device *netdev, int cmd,
e6d6e342 7602 const u8 *addr, gfp_t gfp)
1965c853
JM		 7603{
7604 struct sk_buff *msg;
7605 void *hdr;
7606
e6d6e342 7607 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 7608 if (!msg)
7609 return;
7610
7611 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7612 if (!hdr) {
7613 nlmsg_free(msg);
7614 return;
7615 }
7616
9360ffd1
DM		 7617 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7618 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7619 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7620 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7621 goto nla_put_failure;
1965c853 7622
3b7b72ee 7623 genlmsg_end(msg, hdr);
1965c853 7624
463d0183
JB		 7625 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7626 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 7627 return;
7628
7629 nla_put_failure:
7630 genlmsg_cancel(msg, hdr);
7631 nlmsg_free(msg);
7632}
7633
7634void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7635 struct net_device *netdev, const u8 *addr,
7636 gfp_t gfp)
1965c853
JM		 7637{
7638 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 7639 addr, gfp);
1965c853
JM		 7640}
7641
7642void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7643 struct net_device *netdev, const u8 *addr,
7644 gfp_t gfp)
1965c853 7645{
e6d6e342
JB		 7646 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7647 addr, gfp);
1965c853
JM		 7648}
7649
b23aa676
SO		 7650void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7651 struct net_device *netdev, const u8 *bssid,
7652 const u8 *req_ie, size_t req_ie_len,
7653 const u8 *resp_ie, size_t resp_ie_len,
7654 u16 status, gfp_t gfp)
7655{
7656 struct sk_buff *msg;
7657 void *hdr;
7658
7659 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7660 if (!msg)
7661 return;
7662
7663 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7664 if (!hdr) {
7665 nlmsg_free(msg);
7666 return;
7667 }
7668
9360ffd1
DM		 7669 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7670 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7671 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
7672 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
7673 (req_ie &&
7674 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7675 (resp_ie &&
7676 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7677 goto nla_put_failure;
b23aa676 7678
3b7b72ee 7679 genlmsg_end(msg, hdr);
b23aa676 7680
463d0183
JB		 7681 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7682 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7683 return;
7684
7685 nla_put_failure:
7686 genlmsg_cancel(msg, hdr);
7687 nlmsg_free(msg);
7688
7689}
7690
7691void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7692 struct net_device *netdev, const u8 *bssid,
7693 const u8 *req_ie, size_t req_ie_len,
7694 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7695{
7696 struct sk_buff *msg;
7697 void *hdr;
7698
7699 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7700 if (!msg)
7701 return;
7702
7703 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7704 if (!hdr) {
7705 nlmsg_free(msg);
7706 return;
7707 }
7708
9360ffd1
DM		 7709 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7710 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7711 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
7712 (req_ie &&
7713 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7714 (resp_ie &&
7715 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7716 goto nla_put_failure;
b23aa676 7717
3b7b72ee 7718 genlmsg_end(msg, hdr);
b23aa676 7719
463d0183
JB		 7720 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7721 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7722 return;
7723
7724 nla_put_failure:
7725 genlmsg_cancel(msg, hdr);
7726 nlmsg_free(msg);
7727
7728}
7729
7730void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7731 struct net_device *netdev, u16 reason,
667503dd 7732 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 7733{
7734 struct sk_buff *msg;
7735 void *hdr;
7736
667503dd 7737 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 7738 if (!msg)
7739 return;
7740
7741 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7742 if (!hdr) {
7743 nlmsg_free(msg);
7744 return;
7745 }
7746
9360ffd1
DM		 7747 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7748 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7749 (from_ap && reason &&
7750 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
7751 (from_ap &&
7752 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
7753 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
7754 goto nla_put_failure;
b23aa676 7755
3b7b72ee 7756 genlmsg_end(msg, hdr);
b23aa676 7757
463d0183
JB		 7758 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7759 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 7760 return;
7761
7762 nla_put_failure:
7763 genlmsg_cancel(msg, hdr);
7764 nlmsg_free(msg);
7765
7766}
7767
04a773ad
JB		 7768void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7769 struct net_device *netdev, const u8 *bssid,
7770 gfp_t gfp)
7771{
7772 struct sk_buff *msg;
7773 void *hdr;
7774
fd2120ca 7775 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 7776 if (!msg)
7777 return;
7778
7779 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7780 if (!hdr) {
7781 nlmsg_free(msg);
7782 return;
7783 }
7784
9360ffd1
DM		 7785 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7786 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7787 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
7788 goto nla_put_failure;
04a773ad 7789
3b7b72ee 7790 genlmsg_end(msg, hdr);
04a773ad 7791
463d0183
JB		 7792 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7793 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 7794 return;
7795
7796 nla_put_failure:
7797 genlmsg_cancel(msg, hdr);
7798 nlmsg_free(msg);
7799}
7800
c93b5e71
JC		 7801void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7802 struct net_device *netdev,
7803 const u8 *macaddr, const u8* ie, u8 ie_len,
7804 gfp_t gfp)
7805{
7806 struct sk_buff *msg;
7807 void *hdr;
7808
7809 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7810 if (!msg)
7811 return;
7812
7813 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7814 if (!hdr) {
7815 nlmsg_free(msg);
7816 return;
7817 }
7818
9360ffd1
DM		 7819 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7820 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7821 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
7822 (ie_len && ie &&
7823 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
7824 goto nla_put_failure;
c93b5e71 7825
3b7b72ee 7826 genlmsg_end(msg, hdr);
c93b5e71
JC		 7827
7828 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7829 nl80211_mlme_mcgrp.id, gfp);
7830 return;
7831
7832 nla_put_failure:
7833 genlmsg_cancel(msg, hdr);
7834 nlmsg_free(msg);
7835}
7836
a3b8b056
JM		 7837void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7838 struct net_device *netdev, const u8 *addr,
7839 enum nl80211_key_type key_type, int key_id,
e6d6e342 7840 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 7841{
7842 struct sk_buff *msg;
7843 void *hdr;
7844
e6d6e342 7845 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 7846 if (!msg)
7847 return;
7848
7849 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7850 if (!hdr) {
7851 nlmsg_free(msg);
7852 return;
7853 }
7854
9360ffd1
DM		 7855 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7856 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7857 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
7858 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
7859 (key_id != -1 &&
7860 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
7861 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
7862 goto nla_put_failure;
a3b8b056 7863
3b7b72ee 7864 genlmsg_end(msg, hdr);
a3b8b056 7865
463d0183
JB		 7866 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7867 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 7868 return;
7869
7870 nla_put_failure:
7871 genlmsg_cancel(msg, hdr);
7872 nlmsg_free(msg);
7873}
7874
6bad8766
LR		 7875void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7876 struct ieee80211_channel *channel_before,
7877 struct ieee80211_channel *channel_after)
7878{
7879 struct sk_buff *msg;
7880 void *hdr;
7881 struct nlattr *nl_freq;
7882
fd2120ca 7883 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 7884 if (!msg)
7885 return;
7886
7887 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7888 if (!hdr) {
7889 nlmsg_free(msg);
7890 return;
7891 }
7892
7893 /*
7894 * Since we are applying the beacon hint to a wiphy we know its
7895 * wiphy_idx is valid
7896 */
9360ffd1
DM		 7897 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
7898 goto nla_put_failure;
6bad8766
LR		 7899
7900 /* Before */
7901 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7902 if (!nl_freq)
7903 goto nla_put_failure;
7904 if (nl80211_msg_put_channel(msg, channel_before))
7905 goto nla_put_failure;
7906 nla_nest_end(msg, nl_freq);
7907
7908 /* After */
7909 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7910 if (!nl_freq)
7911 goto nla_put_failure;
7912 if (nl80211_msg_put_channel(msg, channel_after))
7913 goto nla_put_failure;
7914 nla_nest_end(msg, nl_freq);
7915
3b7b72ee 7916 genlmsg_end(msg, hdr);
6bad8766 7917
463d0183
JB		 7918 rcu_read_lock();
7919 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7920 GFP_ATOMIC);
7921 rcu_read_unlock();
6bad8766
LR		 7922
7923 return;
7924
7925nla_put_failure:
7926 genlmsg_cancel(msg, hdr);
7927 nlmsg_free(msg);
7928}
7929
9588bbd5
JM		 7930static void nl80211_send_remain_on_chan_event(
7931 int cmd, struct cfg80211_registered_device *rdev,
7932 struct net_device *netdev, u64 cookie,
7933 struct ieee80211_channel *chan,
7934 enum nl80211_channel_type channel_type,
7935 unsigned int duration, gfp_t gfp)
7936{
7937 struct sk_buff *msg;
7938 void *hdr;
7939
7940 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7941 if (!msg)
7942 return;
7943
7944 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7945 if (!hdr) {
7946 nlmsg_free(msg);
7947 return;
7948 }
7949
9360ffd1
DM		 7950 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7951 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7952 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
7953 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
7954 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7955 goto nla_put_failure;
9588bbd5 7956
9360ffd1
DM		 7957 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
7958 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
7959 goto nla_put_failure;
9588bbd5 7960
3b7b72ee 7961 genlmsg_end(msg, hdr);
9588bbd5
JM		 7962
7963 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7964 nl80211_mlme_mcgrp.id, gfp);
7965 return;
7966
7967 nla_put_failure:
7968 genlmsg_cancel(msg, hdr);
7969 nlmsg_free(msg);
7970}
7971
7972void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7973 struct net_device *netdev, u64 cookie,
7974 struct ieee80211_channel *chan,
7975 enum nl80211_channel_type channel_type,
7976 unsigned int duration, gfp_t gfp)
7977{
7978 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7979 rdev, netdev, cookie, chan,
7980 channel_type, duration, gfp);
7981}
7982
7983void nl80211_send_remain_on_channel_cancel(
7984 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7985 u64 cookie, struct ieee80211_channel *chan,
7986 enum nl80211_channel_type channel_type, gfp_t gfp)
7987{
7988 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7989 rdev, netdev, cookie, chan,
7990 channel_type, 0, gfp);
7991}
7992
98b62183
JB		 7993void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7994 struct net_device *dev, const u8 *mac_addr,
7995 struct station_info *sinfo, gfp_t gfp)
7996{
7997 struct sk_buff *msg;
7998
7999 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8000 if (!msg)
8001 return;
8002
66266b3a
JL		 8003 if (nl80211_send_station(msg, 0, 0, 0,
8004 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 8005 nlmsg_free(msg);
8006 return;
8007 }
8008
8009 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8010 nl80211_mlme_mcgrp.id, gfp);
8011}
8012
ec15e68b
JM		 8013void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8014 struct net_device *dev, const u8 *mac_addr,
8015 gfp_t gfp)
8016{
8017 struct sk_buff *msg;
8018 void *hdr;
8019
8020 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8021 if (!msg)
8022 return;
8023
8024 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8025 if (!hdr) {
8026 nlmsg_free(msg);
8027 return;
8028 }
8029
9360ffd1
DM		 8030 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8031 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8032 goto nla_put_failure;
ec15e68b 8033
3b7b72ee 8034 genlmsg_end(msg, hdr);
ec15e68b
JM		 8035
8036 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8037 nl80211_mlme_mcgrp.id, gfp);
8038 return;
8039
8040 nla_put_failure:
8041 genlmsg_cancel(msg, hdr);
8042 nlmsg_free(msg);
8043}
8044
b92ab5d8
JB		 8045static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8046 const u8 *addr, gfp_t gfp)
28946da7
JB		 8047{
8048 struct wireless_dev *wdev = dev->ieee80211_ptr;
8049 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8050 struct sk_buff *msg;
8051 void *hdr;
8052 int err;
8053 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
8054
8055 if (!nlpid)
8056 return false;
8057
8058 msg = nlmsg_new(100, gfp);
8059 if (!msg)
8060 return true;
8061
b92ab5d8 8062 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 8063 if (!hdr) {
8064 nlmsg_free(msg);
8065 return true;
8066 }
8067
9360ffd1
DM		 8068 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8069 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8070 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8071 goto nla_put_failure;
28946da7
JB		 8072
8073 err = genlmsg_end(msg, hdr);
8074 if (err < 0) {
8075 nlmsg_free(msg);
8076 return true;
8077 }
8078
8079 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8080 return true;
8081
8082 nla_put_failure:
8083 genlmsg_cancel(msg, hdr);
8084 nlmsg_free(msg);
8085 return true;
8086}
8087
b92ab5d8
JB		 8088bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8089{
8090 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8091 addr, gfp);
8092}
8093
8094bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8095 const u8 *addr, gfp_t gfp)
8096{
8097 return __nl80211_unexpected_frame(dev,
8098 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8099 addr, gfp);
8100}
8101
2e161f78
JB		 8102int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8103 struct net_device *netdev, u32 nlpid,
804483e9
JB		 8104 int freq, int sig_dbm,
8105 const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 8106{
8107 struct sk_buff *msg;
8108 void *hdr;
026331c4
JM		 8109
8110 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8111 if (!msg)
8112 return -ENOMEM;
8113
2e161f78 8114 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 8115 if (!hdr) {
8116 nlmsg_free(msg);
8117 return -ENOMEM;
8118 }
8119
9360ffd1
DM		 8120 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8121 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8122 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8123 (sig_dbm &&
8124 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8125 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8126 goto nla_put_failure;
026331c4 8127
3b7b72ee 8128 genlmsg_end(msg, hdr);
026331c4 8129
3b7b72ee 8130 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
026331c4
JM		 8131
8132 nla_put_failure:
8133 genlmsg_cancel(msg, hdr);
8134 nlmsg_free(msg);
8135 return -ENOBUFS;
8136}
8137
2e161f78
JB		 8138void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8139 struct net_device *netdev, u64 cookie,
8140 const u8 *buf, size_t len, bool ack,
8141 gfp_t gfp)
026331c4
JM		 8142{
8143 struct sk_buff *msg;
8144 void *hdr;
8145
8146 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8147 if (!msg)
8148 return;
8149
2e161f78 8150 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 8151 if (!hdr) {
8152 nlmsg_free(msg);
8153 return;
8154 }
8155
9360ffd1
DM		 8156 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8157 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8158 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8159 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8160 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8161 goto nla_put_failure;
026331c4 8162
3b7b72ee 8163 genlmsg_end(msg, hdr);
026331c4
JM		 8164
8165 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8166 return;
8167
8168 nla_put_failure:
8169 genlmsg_cancel(msg, hdr);
8170 nlmsg_free(msg);
8171}
8172
d6dc1a38
JO		 8173void
8174nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8175 struct net_device *netdev,
8176 enum nl80211_cqm_rssi_threshold_event rssi_event,
8177 gfp_t gfp)
8178{
8179 struct sk_buff *msg;
8180 struct nlattr *pinfoattr;
8181 void *hdr;
8182
8183 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8184 if (!msg)
8185 return;
8186
8187 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8188 if (!hdr) {
8189 nlmsg_free(msg);
8190 return;
8191 }
8192
9360ffd1
DM		 8193 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8194 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8195 goto nla_put_failure;
d6dc1a38
JO		 8196
8197 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8198 if (!pinfoattr)
8199 goto nla_put_failure;
8200
9360ffd1
DM		 8201 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8202 rssi_event))
8203 goto nla_put_failure;
d6dc1a38
JO		 8204
8205 nla_nest_end(msg, pinfoattr);
8206
3b7b72ee 8207 genlmsg_end(msg, hdr);
d6dc1a38
JO		 8208
8209 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8210 nl80211_mlme_mcgrp.id, gfp);
8211 return;
8212
8213 nla_put_failure:
8214 genlmsg_cancel(msg, hdr);
8215 nlmsg_free(msg);
8216}
8217
e5497d76
JB		 8218void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8219 struct net_device *netdev, const u8 *bssid,
8220 const u8 *replay_ctr, gfp_t gfp)
8221{
8222 struct sk_buff *msg;
8223 struct nlattr *rekey_attr;
8224 void *hdr;
8225
8226 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8227 if (!msg)
8228 return;
8229
8230 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8231 if (!hdr) {
8232 nlmsg_free(msg);
8233 return;
8234 }
8235
9360ffd1
DM		 8236 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8237 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8238 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8239 goto nla_put_failure;
e5497d76
JB		 8240
8241 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8242 if (!rekey_attr)
8243 goto nla_put_failure;
8244
9360ffd1
DM		 8245 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8246 NL80211_REPLAY_CTR_LEN, replay_ctr))
8247 goto nla_put_failure;
e5497d76
JB		 8248
8249 nla_nest_end(msg, rekey_attr);
8250
3b7b72ee 8251 genlmsg_end(msg, hdr);
e5497d76
JB		 8252
8253 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8254 nl80211_mlme_mcgrp.id, gfp);
8255 return;
8256
8257 nla_put_failure:
8258 genlmsg_cancel(msg, hdr);
8259 nlmsg_free(msg);
8260}
8261
c9df56b4
JM		 8262void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8263 struct net_device *netdev, int index,
8264 const u8 *bssid, bool preauth, gfp_t gfp)
8265{
8266 struct sk_buff *msg;
8267 struct nlattr *attr;
8268 void *hdr;
8269
8270 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8271 if (!msg)
8272 return;
8273
8274 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8275 if (!hdr) {
8276 nlmsg_free(msg);
8277 return;
8278 }
8279
9360ffd1
DM		 8280 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8281 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8282 goto nla_put_failure;
c9df56b4
JM		 8283
8284 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8285 if (!attr)
8286 goto nla_put_failure;
8287
9360ffd1
DM		 8288 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8289 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8290 (preauth &&
8291 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8292 goto nla_put_failure;
c9df56b4
JM		 8293
8294 nla_nest_end(msg, attr);
8295
3b7b72ee 8296 genlmsg_end(msg, hdr);
c9df56b4
JM		 8297
8298 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8299 nl80211_mlme_mcgrp.id, gfp);
8300 return;
8301
8302 nla_put_failure:
8303 genlmsg_cancel(msg, hdr);
8304 nlmsg_free(msg);
8305}
8306
5314526b
TP		 8307void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8308 struct net_device *netdev, int freq,
8309 enum nl80211_channel_type type, gfp_t gfp)
8310{
8311 struct sk_buff *msg;
8312 void *hdr;
8313
8314 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8315 if (!msg)
8316 return;
8317
8318 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8319 if (!hdr) {
8320 nlmsg_free(msg);
8321 return;
8322 }
8323
7eab0f64
JL		 8324 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8325 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8326 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8327 goto nla_put_failure;
5314526b
TP		 8328
8329 genlmsg_end(msg, hdr);
8330
8331 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8332 nl80211_mlme_mcgrp.id, gfp);
8333 return;
8334
8335 nla_put_failure:
8336 genlmsg_cancel(msg, hdr);
8337 nlmsg_free(msg);
8338}
8339
c063dbf5
JB		 8340void
8341nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8342 struct net_device *netdev, const u8 *peer,
8343 u32 num_packets, gfp_t gfp)
8344{
8345 struct sk_buff *msg;
8346 struct nlattr *pinfoattr;
8347 void *hdr;
8348
8349 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8350 if (!msg)
8351 return;
8352
8353 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8354 if (!hdr) {
8355 nlmsg_free(msg);
8356 return;
8357 }
8358
9360ffd1
DM		 8359 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8360 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8361 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8362 goto nla_put_failure;
c063dbf5
JB		 8363
8364 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8365 if (!pinfoattr)
8366 goto nla_put_failure;
8367
9360ffd1
DM		 8368 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8369 goto nla_put_failure;
c063dbf5
JB		 8370
8371 nla_nest_end(msg, pinfoattr);
8372
3b7b72ee 8373 genlmsg_end(msg, hdr);
c063dbf5
JB		 8374
8375 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8376 nl80211_mlme_mcgrp.id, gfp);
8377 return;
8378
8379 nla_put_failure:
8380 genlmsg_cancel(msg, hdr);
8381 nlmsg_free(msg);
8382}
8383
7f6cf311
JB		 8384void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8385 u64 cookie, bool acked, gfp_t gfp)
8386{
8387 struct wireless_dev *wdev = dev->ieee80211_ptr;
8388 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8389 struct sk_buff *msg;
8390 void *hdr;
8391 int err;
8392
8393 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8394 if (!msg)
8395 return;
8396
8397 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8398 if (!hdr) {
8399 nlmsg_free(msg);
8400 return;
8401 }
8402
9360ffd1
DM		 8403 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8404 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8405 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8406 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8407 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8408 goto nla_put_failure;
7f6cf311
JB		 8409
8410 err = genlmsg_end(msg, hdr);
8411 if (err < 0) {
8412 nlmsg_free(msg);
8413 return;
8414 }
8415
8416 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8417 nl80211_mlme_mcgrp.id, gfp);
8418 return;
8419
8420 nla_put_failure:
8421 genlmsg_cancel(msg, hdr);
8422 nlmsg_free(msg);
8423}
8424EXPORT_SYMBOL(cfg80211_probe_status);
8425
5e760230
JB		 8426void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8427 const u8 *frame, size_t len,
804483e9 8428 int freq, int sig_dbm, gfp_t gfp)
5e760230
JB		 8429{
8430 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8431 struct sk_buff *msg;
8432 void *hdr;
8433 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8434
8435 if (!nlpid)
8436 return;
8437
8438 msg = nlmsg_new(len + 100, gfp);
8439 if (!msg)
8440 return;
8441
8442 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8443 if (!hdr) {
8444 nlmsg_free(msg);
8445 return;
8446 }
8447
9360ffd1
DM		 8448 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8449 (freq &&
8450 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8451 (sig_dbm &&
8452 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8453 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8454 goto nla_put_failure;
5e760230
JB		 8455
8456 genlmsg_end(msg, hdr);
8457
8458 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8459 return;
8460
8461 nla_put_failure:
8462 genlmsg_cancel(msg, hdr);
8463 nlmsg_free(msg);
8464}
8465EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8466
026331c4
JM		 8467static int nl80211_netlink_notify(struct notifier_block * nb,
8468 unsigned long state,
8469 void *_notify)
8470{
8471 struct netlink_notify *notify = _notify;
8472 struct cfg80211_registered_device *rdev;
8473 struct wireless_dev *wdev;
8474
8475 if (state != NETLINK_URELEASE)
8476 return NOTIFY_DONE;
8477
8478 rcu_read_lock();
8479
5e760230 8480 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
026331c4 8481 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 8482 cfg80211_mlme_unregister_socket(wdev, notify->pid);
5e760230
JB		 8483 if (rdev->ap_beacons_nlpid == notify->pid)
8484 rdev->ap_beacons_nlpid = 0;
8485 }
026331c4
JM		 8486
8487 rcu_read_unlock();
8488
8489 return NOTIFY_DONE;
8490}
8491
8492static struct notifier_block nl80211_netlink_notifier = {
8493 .notifier_call = nl80211_netlink_notify,
8494};
8495
55682965
JB		 8496/* initialisation/exit functions */
8497
8498int nl80211_init(void)
8499{
0d63cbb5 8500 int err;
55682965 8501
0d63cbb5
MM		 8502 err = genl_register_family_with_ops(&nl80211_fam,
8503 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 8504 if (err)
8505 return err;
8506
55682965
JB		 8507 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8508 if (err)
8509 goto err_out;
8510
2a519311
JB		 8511 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8512 if (err)
8513 goto err_out;
8514
73d54c9e
LR		 8515 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8516 if (err)
8517 goto err_out;
8518
6039f6d2
JM		 8519 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8520 if (err)
8521 goto err_out;
8522
aff89a9b
JB		 8523#ifdef CONFIG_NL80211_TESTMODE
8524 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8525 if (err)
8526 goto err_out;
8527#endif
8528
026331c4
JM		 8529 err = netlink_register_notifier(&nl80211_netlink_notifier);
8530 if (err)
8531 goto err_out;
8532
55682965
JB		 8533 return 0;
8534 err_out:
8535 genl_unregister_family(&nl80211_fam);
8536 return err;
8537}
8538
8539void nl80211_exit(void)
8540{
026331c4 8541 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 8542 genl_unregister_family(&nl80211_fam);
8543}
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