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cfg80211: .stop_ap when interface is going down
[deliverable/linux.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
55682965 25
5fb628e9
JM		 26static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
27static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
30 int cipher_limit);
31
4c476991
JB		 32static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
36
55682965
JB		 37/* the netlink family */
38static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
463d0183 44 .netnsok = true,
4c476991
JB		 45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
55682965
JB		 47};
48
79c97e97 49/* internal helper: get rdev and dev */
00918d33
JB		 50static int get_rdev_dev_by_ifindex(struct net *netns, struct nlattr **attrs,
51 struct cfg80211_registered_device **rdev,
52 struct net_device **dev)
55682965
JB		 53{
54 int ifindex;
55
bba95fef 56 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 57 return -EINVAL;
58
bba95fef 59 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
00918d33 60 *dev = dev_get_by_index(netns, ifindex);
55682965
JB		 61 if (!*dev)
62 return -ENODEV;
63
00918d33 64 *rdev = cfg80211_get_dev_from_ifindex(netns, ifindex);
79c97e97 65 if (IS_ERR(*rdev)) {
55682965 66 dev_put(*dev);
79c97e97 67 return PTR_ERR(*rdev);
55682965
JB		 68 }
69
70 return 0;
71}
72
a9455408 73static struct cfg80211_registered_device *
878d9ec7 74__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 75{
7fee4778
JB		 76 struct cfg80211_registered_device *rdev = NULL, *tmp;
77 struct net_device *netdev;
a9455408
JB		 78
79 assert_cfg80211_lock();
80
878d9ec7
JB		 81 if (!attrs[NL80211_ATTR_WIPHY] &&
82 !attrs[NL80211_ATTR_IFINDEX])
7fee4778
JB		 83 return ERR_PTR(-EINVAL);
84
878d9ec7 85 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 86 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 87 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 88
878d9ec7
JB		 89 if (attrs[NL80211_ATTR_IFINDEX]) {
90 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
4f7eff10 91 netdev = dev_get_by_index(netns, ifindex);
7fee4778
JB		 92 if (netdev) {
93 if (netdev->ieee80211_ptr)
94 tmp = wiphy_to_dev(
95 netdev->ieee80211_ptr->wiphy);
96 else
97 tmp = NULL;
98
99 dev_put(netdev);
100
101 /* not wireless device -- return error */
102 if (!tmp)
103 return ERR_PTR(-EINVAL);
104
105 /* mismatch -- return error */
106 if (rdev && tmp != rdev)
107 return ERR_PTR(-EINVAL);
108
109 rdev = tmp;
a9455408 110 }
a9455408 111 }
a9455408 112
4f7eff10
JB		 113 if (!rdev)
114 return ERR_PTR(-ENODEV);
a9455408 115
4f7eff10
JB		 116 if (netns != wiphy_net(&rdev->wiphy))
117 return ERR_PTR(-ENODEV);
118
119 return rdev;
a9455408
JB		 120}
121
122/*
123 * This function returns a pointer to the driver
124 * that the genl_info item that is passed refers to.
125 * If successful, it returns non-NULL and also locks
126 * the driver's mutex!
127 *
128 * This means that you need to call cfg80211_unlock_rdev()
129 * before being allowed to acquire &cfg80211_mutex!
130 *
131 * This is necessary because we need to lock the global
132 * mutex to get an item off the list safely, and then
133 * we lock the rdev mutex so it doesn't go away under us.
134 *
135 * We don't want to keep cfg80211_mutex locked
136 * for all the time in order to allow requests on
137 * other interfaces to go through at the same time.
138 *
139 * The result of this can be a PTR_ERR and hence must
140 * be checked with IS_ERR() for errors.
141 */
142static struct cfg80211_registered_device *
4f7eff10 143cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408
JB		 144{
145 struct cfg80211_registered_device *rdev;
146
147 mutex_lock(&cfg80211_mutex);
878d9ec7 148 rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 149
150 /* if it is not an error we grab the lock on
151 * it to assure it won't be going away while
152 * we operate on it */
153 if (!IS_ERR(rdev))
154 mutex_lock(&rdev->mtx);
155
156 mutex_unlock(&cfg80211_mutex);
157
158 return rdev;
159}
160
55682965 161/* policy for the attributes */
b54452b0 162static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 163 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
164 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 165 .len = 20-1 },
31888487 166 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 167 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 168 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 169 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
170 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
171 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
172 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 173 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 174
175 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
176 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
177 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 178
e007b857
EP		 179 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
180 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 181
b9454e83 182 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 183 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
184 .len = WLAN_MAX_KEY_LEN },
185 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
186 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
187 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 188 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 189 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 190
191 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
192 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
193 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
194 .len = IEEE80211_MAX_DATA_LEN },
195 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
196 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 197 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
198 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
199 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
200 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
201 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 202 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 203 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 204 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 205 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 206 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 207 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 208
b2e1b302
LR		 209 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
210 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
211
9f1ba906
JM		 212 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
213 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
214 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 215 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
216 .len = NL80211_MAX_SUPP_RATES },
50b12f59 217 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 218
24bdd9f4 219 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 220 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 221
6c739419 222 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 223
224 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
225 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
226 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 227 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
228 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 229
230 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
231 .len = IEEE80211_MAX_SSID_LEN },
232 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
233 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 234 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 235 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 236 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 237 [NL80211_ATTR_STA_FLAGS2] = {
238 .len = sizeof(struct nl80211_sta_flag_update),
239 },
3f77316c 240 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 241 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
242 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 243 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
244 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
245 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 246 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 247 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 248 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
249 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 250 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
251 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 252 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 253 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
254 .len = IEEE80211_MAX_DATA_LEN },
255 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 256 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 257 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 258 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 259 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 260 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
261 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 262 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 263 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
264 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 265 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 266 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 267 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 268 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 269 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 270 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 271 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 272 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 273 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 274 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
275 .len = IEEE80211_MAX_DATA_LEN },
276 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
277 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 278 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 279 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 280 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 281 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
282 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
283 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
284 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
285 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 286 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 287 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
288 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 289 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 290 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
291 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
292 .len = NL80211_HT_CAPABILITY_LEN
293 },
1d9d9213 294 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 295 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 296 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
55682965
JB		 297};
298
e31b8213 299/* policy for the key attributes */
b54452b0 300static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 301 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 302 [NL80211_KEY_IDX] = { .type = NLA_U8 },
303 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 304 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 305 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
306 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 307 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 308 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
309};
310
311/* policy for the key default flags */
312static const struct nla_policy
313nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
314 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
315 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 316};
317
ff1b6e69
JB		 318/* policy for WoWLAN attributes */
319static const struct nla_policy
320nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
321 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
322 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
323 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
324 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 325 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
326 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
327 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
328 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 329};
330
e5497d76
JB		 331/* policy for GTK rekey offload attributes */
332static const struct nla_policy
333nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
334 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
335 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
336 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
337};
338
a1f1c21c
LC		 339static const struct nla_policy
340nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 341 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 342 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 343 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 344};
345
a043897a
HS		 346/* ifidx get helper */
347static int nl80211_get_ifidx(struct netlink_callback *cb)
348{
349 int res;
350
351 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
352 nl80211_fam.attrbuf, nl80211_fam.maxattr,
353 nl80211_policy);
354 if (res)
355 return res;
356
357 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
358 return -EINVAL;
359
360 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
361 if (!res)
362 return -EINVAL;
363 return res;
364}
365
67748893
JB		 366static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
367 struct netlink_callback *cb,
368 struct cfg80211_registered_device **rdev,
369 struct net_device **dev)
370{
371 int ifidx = cb->args[0];
372 int err;
373
374 if (!ifidx)
375 ifidx = nl80211_get_ifidx(cb);
376 if (ifidx < 0)
377 return ifidx;
378
379 cb->args[0] = ifidx;
380
381 rtnl_lock();
382
383 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
384 if (!*dev) {
385 err = -ENODEV;
386 goto out_rtnl;
387 }
388
389 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 390 if (IS_ERR(*rdev)) {
391 err = PTR_ERR(*rdev);
67748893
JB		 392 goto out_rtnl;
393 }
394
395 return 0;
396 out_rtnl:
397 rtnl_unlock();
398 return err;
399}
400
401static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
402{
403 cfg80211_unlock_rdev(rdev);
404 rtnl_unlock();
405}
406
f4a11bb0
JB		 407/* IE validation */
408static bool is_valid_ie_attr(const struct nlattr *attr)
409{
410 const u8 *pos;
411 int len;
412
413 if (!attr)
414 return true;
415
416 pos = nla_data(attr);
417 len = nla_len(attr);
418
419 while (len) {
420 u8 elemlen;
421
422 if (len < 2)
423 return false;
424 len -= 2;
425
426 elemlen = pos[1];
427 if (elemlen > len)
428 return false;
429
430 len -= elemlen;
431 pos += 2 + elemlen;
432 }
433
434 return true;
435}
436
55682965
JB		 437/* message building helper */
438static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
439 int flags, u8 cmd)
440{
441 /* since there is no private header just add the generic one */
442 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
443}
444
5dab3b8a
LR		 445static int nl80211_msg_put_channel(struct sk_buff *msg,
446 struct ieee80211_channel *chan)
447{
9360ffd1
DM		 448 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
449 chan->center_freq))
450 goto nla_put_failure;
5dab3b8a 451
9360ffd1
DM		 452 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
453 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
454 goto nla_put_failure;
455 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
456 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
457 goto nla_put_failure;
458 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
459 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
460 goto nla_put_failure;
461 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
462 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
463 goto nla_put_failure;
5dab3b8a 464
9360ffd1
DM		 465 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
466 DBM_TO_MBM(chan->max_power)))
467 goto nla_put_failure;
5dab3b8a
LR		 468
469 return 0;
470
471 nla_put_failure:
472 return -ENOBUFS;
473}
474
55682965
JB		 475/* netlink command implementations */
476
b9454e83
JB		 477struct key_parse {
478 struct key_params p;
479 int idx;
e31b8213 480 int type;
b9454e83 481 bool def, defmgmt;
dbd2fd65 482 bool def_uni, def_multi;
b9454e83
JB		 483};
484
485static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
486{
487 struct nlattr *tb[NL80211_KEY_MAX + 1];
488 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
489 nl80211_key_policy);
490 if (err)
491 return err;
492
493 k->def = !!tb[NL80211_KEY_DEFAULT];
494 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
495
dbd2fd65
JB		 496 if (k->def) {
497 k->def_uni = true;
498 k->def_multi = true;
499 }
500 if (k->defmgmt)
501 k->def_multi = true;
502
b9454e83
JB		 503 if (tb[NL80211_KEY_IDX])
504 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
505
506 if (tb[NL80211_KEY_DATA]) {
507 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
508 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
509 }
510
511 if (tb[NL80211_KEY_SEQ]) {
512 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
513 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
514 }
515
516 if (tb[NL80211_KEY_CIPHER])
517 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
518
e31b8213
JB		 519 if (tb[NL80211_KEY_TYPE]) {
520 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
521 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
522 return -EINVAL;
523 }
524
dbd2fd65
JB		 525 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
526 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 527 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
528 tb[NL80211_KEY_DEFAULT_TYPES],
529 nl80211_key_default_policy);
dbd2fd65
JB		 530 if (err)
531 return err;
532
533 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
534 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
535 }
536
b9454e83
JB		 537 return 0;
538}
539
540static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
541{
542 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
543 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
544 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
545 }
546
547 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
548 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
549 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
550 }
551
552 if (info->attrs[NL80211_ATTR_KEY_IDX])
553 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
554
555 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
556 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
557
558 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
559 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
560
dbd2fd65
JB		 561 if (k->def) {
562 k->def_uni = true;
563 k->def_multi = true;
564 }
565 if (k->defmgmt)
566 k->def_multi = true;
567
e31b8213
JB		 568 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
569 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
570 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
571 return -EINVAL;
572 }
573
dbd2fd65
JB		 574 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
575 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
576 int err = nla_parse_nested(
577 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
578 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
579 nl80211_key_default_policy);
580 if (err)
581 return err;
582
583 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
584 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
585 }
586
b9454e83
JB		 587 return 0;
588}
589
590static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
591{
592 int err;
593
594 memset(k, 0, sizeof(*k));
595 k->idx = -1;
e31b8213 596 k->type = -1;
b9454e83
JB		 597
598 if (info->attrs[NL80211_ATTR_KEY])
599 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
600 else
601 err = nl80211_parse_key_old(info, k);
602
603 if (err)
604 return err;
605
606 if (k->def && k->defmgmt)
607 return -EINVAL;
608
dbd2fd65
JB		 609 if (k->defmgmt) {
610 if (k->def_uni || !k->def_multi)
611 return -EINVAL;
612 }
613
b9454e83
JB		 614 if (k->idx != -1) {
615 if (k->defmgmt) {
616 if (k->idx < 4 || k->idx > 5)
617 return -EINVAL;
618 } else if (k->def) {
619 if (k->idx < 0 || k->idx > 3)
620 return -EINVAL;
621 } else {
622 if (k->idx < 0 || k->idx > 5)
623 return -EINVAL;
624 }
625 }
626
627 return 0;
628}
629
fffd0934
JB		 630static struct cfg80211_cached_keys *
631nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
632 struct nlattr *keys)
633{
634 struct key_parse parse;
635 struct nlattr *key;
636 struct cfg80211_cached_keys *result;
637 int rem, err, def = 0;
638
639 result = kzalloc(sizeof(*result), GFP_KERNEL);
640 if (!result)
641 return ERR_PTR(-ENOMEM);
642
643 result->def = -1;
644 result->defmgmt = -1;
645
646 nla_for_each_nested(key, keys, rem) {
647 memset(&parse, 0, sizeof(parse));
648 parse.idx = -1;
649
650 err = nl80211_parse_key_new(key, &parse);
651 if (err)
652 goto error;
653 err = -EINVAL;
654 if (!parse.p.key)
655 goto error;
656 if (parse.idx < 0 || parse.idx > 4)
657 goto error;
658 if (parse.def) {
659 if (def)
660 goto error;
661 def = 1;
662 result->def = parse.idx;
dbd2fd65
JB		 663 if (!parse.def_uni || !parse.def_multi)
664 goto error;
fffd0934
JB		 665 } else if (parse.defmgmt)
666 goto error;
667 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 668 parse.idx, false, NULL);
fffd0934
JB		 669 if (err)
670 goto error;
671 result->params[parse.idx].cipher = parse.p.cipher;
672 result->params[parse.idx].key_len = parse.p.key_len;
673 result->params[parse.idx].key = result->data[parse.idx];
674 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
675 }
676
677 return result;
678 error:
679 kfree(result);
680 return ERR_PTR(err);
681}
682
683static int nl80211_key_allowed(struct wireless_dev *wdev)
684{
685 ASSERT_WDEV_LOCK(wdev);
686
fffd0934
JB		 687 switch (wdev->iftype) {
688 case NL80211_IFTYPE_AP:
689 case NL80211_IFTYPE_AP_VLAN:
074ac8df 690 case NL80211_IFTYPE_P2P_GO:
ff973af7 691 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 692 break;
693 case NL80211_IFTYPE_ADHOC:
694 if (!wdev->current_bss)
695 return -ENOLINK;
696 break;
697 case NL80211_IFTYPE_STATION:
074ac8df 698 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 699 if (wdev->sme_state != CFG80211_SME_CONNECTED)
700 return -ENOLINK;
701 break;
702 default:
703 return -EINVAL;
704 }
705
706 return 0;
707}
708
7527a782
JB		 709static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
710{
711 struct nlattr *nl_modes = nla_nest_start(msg, attr);
712 int i;
713
714 if (!nl_modes)
715 goto nla_put_failure;
716
717 i = 0;
718 while (ifmodes) {
9360ffd1
DM		 719 if ((ifmodes & 1) && nla_put_flag(msg, i))
720 goto nla_put_failure;
7527a782
JB		 721 ifmodes >>= 1;
722 i++;
723 }
724
725 nla_nest_end(msg, nl_modes);
726 return 0;
727
728nla_put_failure:
729 return -ENOBUFS;
730}
731
732static int nl80211_put_iface_combinations(struct wiphy *wiphy,
733 struct sk_buff *msg)
734{
735 struct nlattr *nl_combis;
736 int i, j;
737
738 nl_combis = nla_nest_start(msg,
739 NL80211_ATTR_INTERFACE_COMBINATIONS);
740 if (!nl_combis)
741 goto nla_put_failure;
742
743 for (i = 0; i < wiphy->n_iface_combinations; i++) {
744 const struct ieee80211_iface_combination *c;
745 struct nlattr *nl_combi, *nl_limits;
746
747 c = &wiphy->iface_combinations[i];
748
749 nl_combi = nla_nest_start(msg, i + 1);
750 if (!nl_combi)
751 goto nla_put_failure;
752
753 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
754 if (!nl_limits)
755 goto nla_put_failure;
756
757 for (j = 0; j < c->n_limits; j++) {
758 struct nlattr *nl_limit;
759
760 nl_limit = nla_nest_start(msg, j + 1);
761 if (!nl_limit)
762 goto nla_put_failure;
9360ffd1
DM		 763 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
764 c->limits[j].max))
765 goto nla_put_failure;
7527a782
JB		 766 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
767 c->limits[j].types))
768 goto nla_put_failure;
769 nla_nest_end(msg, nl_limit);
770 }
771
772 nla_nest_end(msg, nl_limits);
773
9360ffd1
DM		 774 if (c->beacon_int_infra_match &&
775 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
776 goto nla_put_failure;
777 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
778 c->num_different_channels) ||
779 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
780 c->max_interfaces))
781 goto nla_put_failure;
7527a782
JB		 782
783 nla_nest_end(msg, nl_combi);
784 }
785
786 nla_nest_end(msg, nl_combis);
787
788 return 0;
789nla_put_failure:
790 return -ENOBUFS;
791}
792
55682965
JB		 793static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
794 struct cfg80211_registered_device *dev)
795{
796 void *hdr;
ee688b00
JB		 797 struct nlattr *nl_bands, *nl_band;
798 struct nlattr *nl_freqs, *nl_freq;
799 struct nlattr *nl_rates, *nl_rate;
8fdc621d 800 struct nlattr *nl_cmds;
ee688b00
JB		 801 enum ieee80211_band band;
802 struct ieee80211_channel *chan;
803 struct ieee80211_rate *rate;
804 int i;
2e161f78
JB		 805 const struct ieee80211_txrx_stypes *mgmt_stypes =
806 dev->wiphy.mgmt_stypes;
55682965
JB		 807
808 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
809 if (!hdr)
810 return -1;
811
9360ffd1
DM		 812 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
813 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
814 nla_put_u32(msg, NL80211_ATTR_GENERATION,
815 cfg80211_rdev_list_generation) ||
816 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
817 dev->wiphy.retry_short) ||
818 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
819 dev->wiphy.retry_long) ||
820 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
821 dev->wiphy.frag_threshold) ||
822 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
823 dev->wiphy.rts_threshold) ||
824 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
825 dev->wiphy.coverage_class) ||
826 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
827 dev->wiphy.max_scan_ssids) ||
828 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
829 dev->wiphy.max_sched_scan_ssids) ||
830 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
831 dev->wiphy.max_scan_ie_len) ||
832 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
833 dev->wiphy.max_sched_scan_ie_len) ||
834 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
835 dev->wiphy.max_match_sets))
836 goto nla_put_failure;
837
838 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
839 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
840 goto nla_put_failure;
841 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
842 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
843 goto nla_put_failure;
844 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
845 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
846 goto nla_put_failure;
847 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
848 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
849 goto nla_put_failure;
850 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
851 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
852 goto nla_put_failure;
853 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
854 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
855 goto nla_put_failure;
856
857 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
858 sizeof(u32) * dev->wiphy.n_cipher_suites,
859 dev->wiphy.cipher_suites))
860 goto nla_put_failure;
861
862 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
863 dev->wiphy.max_num_pmkids))
864 goto nla_put_failure;
865
866 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
867 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
868 goto nla_put_failure;
869
870 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
871 dev->wiphy.available_antennas_tx) ||
872 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
873 dev->wiphy.available_antennas_rx))
874 goto nla_put_failure;
875
876 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
877 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
878 dev->wiphy.probe_resp_offload))
879 goto nla_put_failure;
87bbbe22 880
7f531e03
BR		 881 if ((dev->wiphy.available_antennas_tx ||
882 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 883 u32 tx_ant = 0, rx_ant = 0;
884 int res;
885 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
886 if (!res) {
9360ffd1
DM		 887 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
888 tx_ant) ||
889 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
890 rx_ant))
891 goto nla_put_failure;
afe0cbf8
BR		 892 }
893 }
894
7527a782
JB		 895 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
896 dev->wiphy.interface_modes))
f59ac048
LR		 897 goto nla_put_failure;
898
ee688b00
JB		 899 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
900 if (!nl_bands)
901 goto nla_put_failure;
902
903 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
904 if (!dev->wiphy.bands[band])
905 continue;
906
907 nl_band = nla_nest_start(msg, band);
908 if (!nl_band)
909 goto nla_put_failure;
910
d51626df 911 /* add HT info */
9360ffd1
DM		 912 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
913 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
914 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
915 &dev->wiphy.bands[band]->ht_cap.mcs) ||
916 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
917 dev->wiphy.bands[band]->ht_cap.cap) ||
918 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
919 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
920 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
921 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
922 goto nla_put_failure;
d51626df 923
bf0c111e
MP		 924 /* add VHT info */
925 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
926 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
927 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
928 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
929 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
930 dev->wiphy.bands[band]->vht_cap.cap)))
931 goto nla_put_failure;
932
ee688b00
JB		 933 /* add frequencies */
934 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
935 if (!nl_freqs)
936 goto nla_put_failure;
937
938 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
939 nl_freq = nla_nest_start(msg, i);
940 if (!nl_freq)
941 goto nla_put_failure;
942
943 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 944
945 if (nl80211_msg_put_channel(msg, chan))
946 goto nla_put_failure;
e2f367f2 947
ee688b00
JB		 948 nla_nest_end(msg, nl_freq);
949 }
950
951 nla_nest_end(msg, nl_freqs);
952
953 /* add bitrates */
954 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
955 if (!nl_rates)
956 goto nla_put_failure;
957
958 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
959 nl_rate = nla_nest_start(msg, i);
960 if (!nl_rate)
961 goto nla_put_failure;
962
963 rate = &dev->wiphy.bands[band]->bitrates[i];
9360ffd1
DM		 964 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
965 rate->bitrate))
966 goto nla_put_failure;
967 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
968 nla_put_flag(msg,
969 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
970 goto nla_put_failure;
ee688b00
JB		 971
972 nla_nest_end(msg, nl_rate);
973 }
974
975 nla_nest_end(msg, nl_rates);
976
977 nla_nest_end(msg, nl_band);
978 }
979 nla_nest_end(msg, nl_bands);
980
8fdc621d
JB		 981 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
982 if (!nl_cmds)
983 goto nla_put_failure;
984
985 i = 0;
986#define CMD(op, n) \
987 do { \
988 if (dev->ops->op) { \
989 i++; \
9360ffd1
DM		 990 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
991 goto nla_put_failure; \
8fdc621d
JB		 992 } \
993 } while (0)
994
995 CMD(add_virtual_intf, NEW_INTERFACE);
996 CMD(change_virtual_intf, SET_INTERFACE);
997 CMD(add_key, NEW_KEY);
8860020e 998 CMD(start_ap, START_AP);
8fdc621d
JB		 999 CMD(add_station, NEW_STATION);
1000 CMD(add_mpath, NEW_MPATH);
24bdd9f4 1001 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 1002 CMD(change_bss, SET_BSS);
636a5d36
JM		 1003 CMD(auth, AUTHENTICATE);
1004 CMD(assoc, ASSOCIATE);
1005 CMD(deauth, DEAUTHENTICATE);
1006 CMD(disassoc, DISASSOCIATE);
04a773ad 1007 CMD(join_ibss, JOIN_IBSS);
29cbe68c 1008 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 1009 CMD(set_pmksa, SET_PMKSA);
1010 CMD(del_pmksa, DEL_PMKSA);
1011 CMD(flush_pmksa, FLUSH_PMKSA);
7c4ef712
JB		 1012 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1013 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 1014 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 1015 CMD(mgmt_tx, FRAME);
f7ca38df 1016 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 1017 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183 1018 i++;
9360ffd1
DM		 1019 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1020 goto nla_put_failure;
463d0183 1021 }
e8c9bd5b 1022 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
cc1d2806 1023 dev->ops->join_mesh) {
aa430da4
JB		 1024 i++;
1025 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1026 goto nla_put_failure;
1027 }
e8347eba 1028 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 1029 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1030 CMD(tdls_mgmt, TDLS_MGMT);
1031 CMD(tdls_oper, TDLS_OPER);
1032 }
807f8a8c
LC		 1033 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1034 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 1035 CMD(probe_client, PROBE_CLIENT);
1d9d9213 1036 CMD(set_noack_map, SET_NOACK_MAP);
5e760230
JB		 1037 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1038 i++;
9360ffd1
DM		 1039 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1040 goto nla_put_failure;
5e760230 1041 }
8fdc621d 1042
4745fc09
KV		 1043#ifdef CONFIG_NL80211_TESTMODE
1044 CMD(testmode_cmd, TESTMODE);
1045#endif
1046
8fdc621d 1047#undef CMD
b23aa676 1048
6829c878 1049 if (dev->ops->connect || dev->ops->auth) {
b23aa676 1050 i++;
9360ffd1
DM		 1051 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1052 goto nla_put_failure;
b23aa676
SO		 1053 }
1054
6829c878 1055 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676 1056 i++;
9360ffd1
DM		 1057 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1058 goto nla_put_failure;
b23aa676
SO		 1059 }
1060
8fdc621d
JB		 1061 nla_nest_end(msg, nl_cmds);
1062
7c4ef712 1063 if (dev->ops->remain_on_channel &&
9360ffd1
DM		 1064 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1065 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1066 dev->wiphy.max_remain_on_channel_duration))
1067 goto nla_put_failure;
a293911d 1068
9360ffd1
DM		 1069 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1070 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1071 goto nla_put_failure;
f7ca38df 1072
2e161f78
JB		 1073 if (mgmt_stypes) {
1074 u16 stypes;
1075 struct nlattr *nl_ftypes, *nl_ifs;
1076 enum nl80211_iftype ift;
1077
1078 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1079 if (!nl_ifs)
1080 goto nla_put_failure;
1081
1082 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1083 nl_ftypes = nla_nest_start(msg, ift);
1084 if (!nl_ftypes)
1085 goto nla_put_failure;
1086 i = 0;
1087 stypes = mgmt_stypes[ift].tx;
1088 while (stypes) {
9360ffd1
DM		 1089 if ((stypes & 1) &&
1090 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1091 (i << 4) | IEEE80211_FTYPE_MGMT))
1092 goto nla_put_failure;
2e161f78
JB		 1093 stypes >>= 1;
1094 i++;
1095 }
1096 nla_nest_end(msg, nl_ftypes);
1097 }
1098
74b70a4e
JB		 1099 nla_nest_end(msg, nl_ifs);
1100
2e161f78
JB		 1101 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1102 if (!nl_ifs)
1103 goto nla_put_failure;
1104
1105 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1106 nl_ftypes = nla_nest_start(msg, ift);
1107 if (!nl_ftypes)
1108 goto nla_put_failure;
1109 i = 0;
1110 stypes = mgmt_stypes[ift].rx;
1111 while (stypes) {
9360ffd1
DM		 1112 if ((stypes & 1) &&
1113 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1114 (i << 4) | IEEE80211_FTYPE_MGMT))
1115 goto nla_put_failure;
2e161f78
JB		 1116 stypes >>= 1;
1117 i++;
1118 }
1119 nla_nest_end(msg, nl_ftypes);
1120 }
1121 nla_nest_end(msg, nl_ifs);
1122 }
1123
dfb89c56 1124#ifdef CONFIG_PM
ff1b6e69
JB		 1125 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1126 struct nlattr *nl_wowlan;
1127
1128 nl_wowlan = nla_nest_start(msg,
1129 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1130 if (!nl_wowlan)
1131 goto nla_put_failure;
1132
9360ffd1
DM		 1133 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1134 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1135 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1136 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1137 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1138 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1139 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1140 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1141 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1142 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1143 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1144 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1145 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1146 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1147 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1148 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1149 goto nla_put_failure;
ff1b6e69
JB		 1150 if (dev->wiphy.wowlan.n_patterns) {
1151 struct nl80211_wowlan_pattern_support pat = {
1152 .max_patterns = dev->wiphy.wowlan.n_patterns,
1153 .min_pattern_len =
1154 dev->wiphy.wowlan.pattern_min_len,
1155 .max_pattern_len =
1156 dev->wiphy.wowlan.pattern_max_len,
1157 };
9360ffd1
DM		 1158 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1159 sizeof(pat), &pat))
1160 goto nla_put_failure;
ff1b6e69
JB		 1161 }
1162
1163 nla_nest_end(msg, nl_wowlan);
1164 }
dfb89c56 1165#endif
ff1b6e69 1166
7527a782
JB		 1167 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1168 dev->wiphy.software_iftypes))
1169 goto nla_put_failure;
1170
1171 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1172 goto nla_put_failure;
1173
9360ffd1
DM		 1174 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1175 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1176 dev->wiphy.ap_sme_capa))
1177 goto nla_put_failure;
562a7480 1178
9360ffd1
DM		 1179 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1180 dev->wiphy.features))
1181 goto nla_put_failure;
1f074bd8 1182
9360ffd1
DM		 1183 if (dev->wiphy.ht_capa_mod_mask &&
1184 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1185 sizeof(*dev->wiphy.ht_capa_mod_mask),
1186 dev->wiphy.ht_capa_mod_mask))
1187 goto nla_put_failure;
7e7c8926 1188
55682965
JB		 1189 return genlmsg_end(msg, hdr);
1190
1191 nla_put_failure:
bc3ed28c
TG		 1192 genlmsg_cancel(msg, hdr);
1193 return -EMSGSIZE;
55682965
JB		 1194}
1195
1196static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1197{
1198 int idx = 0;
1199 int start = cb->args[0];
1200 struct cfg80211_registered_device *dev;
1201
a1794390 1202 mutex_lock(&cfg80211_mutex);
79c97e97 1203 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1204 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1205 continue;
b4637271 1206 if (++idx <= start)
55682965
JB		 1207 continue;
1208 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1209 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1210 dev) < 0) {
1211 idx--;
55682965 1212 break;
b4637271 1213 }
55682965 1214 }
a1794390 1215 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1216
1217 cb->args[0] = idx;
1218
1219 return skb->len;
1220}
1221
1222static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1223{
1224 struct sk_buff *msg;
4c476991 1225 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1226
fd2120ca 1227 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1228 if (!msg)
4c476991 1229 return -ENOMEM;
55682965 1230
4c476991
JB		 1231 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1232 nlmsg_free(msg);
1233 return -ENOBUFS;
1234 }
55682965 1235
134e6375 1236 return genlmsg_reply(msg, info);
55682965
JB		 1237}
1238
31888487
JM		 1239static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1240 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1241 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1242 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1243 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1244 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1245};
1246
1247static int parse_txq_params(struct nlattr *tb[],
1248 struct ieee80211_txq_params *txq_params)
1249{
a3304b0a 1250 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1251 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1252 !tb[NL80211_TXQ_ATTR_AIFS])
1253 return -EINVAL;
1254
a3304b0a 1255 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1256 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1257 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1258 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1259 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1260
a3304b0a
JB		 1261 if (txq_params->ac >= NL80211_NUM_ACS)
1262 return -EINVAL;
1263
31888487
JM		 1264 return 0;
1265}
1266
f444de05
JB		 1267static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1268{
1269 /*
cc1d2806
JB		 1270 * You can only set the channel explicitly for WDS interfaces,
1271 * all others have their channel managed via their respective
1272 * "establish a connection" command (connect, join, ...)
1273 *
1274 * For AP/GO and mesh mode, the channel can be set with the
1275 * channel userspace API, but is only stored and passed to the
1276 * low-level driver when the AP starts or the mesh is joined.
1277 * This is for backward compatibility, userspace can also give
1278 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1279 *
1280 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1281 * whatever else is going on, so they have their own special
1282 * operation to set the monitor channel if possible.
f444de05
JB		 1283 */
1284 return !wdev ||
1285 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1286 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1287 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1288 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1289}
1290
cd6c6598
JB		 1291static bool nl80211_valid_channel_type(struct genl_info *info,
1292 enum nl80211_channel_type *channel_type)
1293{
1294 enum nl80211_channel_type tmp;
1295
1296 if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1297 return false;
1298
1299 tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1300 if (tmp != NL80211_CHAN_NO_HT &&
1301 tmp != NL80211_CHAN_HT20 &&
1302 tmp != NL80211_CHAN_HT40PLUS &&
1303 tmp != NL80211_CHAN_HT40MINUS)
1304 return false;
1305
1306 if (channel_type)
1307 *channel_type = tmp;
1308
1309 return true;
1310}
1311
f444de05
JB		 1312static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1313 struct wireless_dev *wdev,
1314 struct genl_info *info)
1315{
aa430da4 1316 struct ieee80211_channel *channel;
f444de05
JB		 1317 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1318 u32 freq;
1319 int result;
e8c9bd5b
JB		 1320 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1321
1322 if (wdev)
1323 iftype = wdev->iftype;
f444de05
JB		 1324
1325 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1326 return -EINVAL;
1327
1328 if (!nl80211_can_set_dev_channel(wdev))
1329 return -EOPNOTSUPP;
1330
cd6c6598
JB		 1331 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
1332 !nl80211_valid_channel_type(info, &channel_type))
1333 return -EINVAL;
f444de05
JB		 1334
1335 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1336
1337 mutex_lock(&rdev->devlist_mtx);
e8c9bd5b 1338 switch (iftype) {
aa430da4
JB		 1339 case NL80211_IFTYPE_AP:
1340 case NL80211_IFTYPE_P2P_GO:
1341 if (wdev->beacon_interval) {
1342 result = -EBUSY;
1343 break;
1344 }
1345 channel = rdev_freq_to_chan(rdev, freq, channel_type);
1346 if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
1347 channel,
1348 channel_type)) {
1349 result = -EINVAL;
1350 break;
1351 }
1352 wdev->preset_chan = channel;
1353 wdev->preset_chantype = channel_type;
1354 result = 0;
1355 break;
cc1d2806
JB		 1356 case NL80211_IFTYPE_MESH_POINT:
1357 result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type);
1358 break;
e8c9bd5b
JB		 1359 case NL80211_IFTYPE_MONITOR:
1360 result = cfg80211_set_monitor_channel(rdev, freq, channel_type);
1361 break;
aa430da4 1362 default:
e8c9bd5b 1363 result = -EINVAL;
f444de05
JB		 1364 }
1365 mutex_unlock(&rdev->devlist_mtx);
1366
1367 return result;
1368}
1369
1370static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1371{
4c476991
JB		 1372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1373 struct net_device *netdev = info->user_ptr[1];
f444de05 1374
4c476991 1375 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1376}
1377
e8347eba
BJ		 1378static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1379{
43b19952
JB		 1380 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1381 struct net_device *dev = info->user_ptr[1];
1382 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1383 const u8 *bssid;
e8347eba
BJ		 1384
1385 if (!info->attrs[NL80211_ATTR_MAC])
1386 return -EINVAL;
1387
43b19952
JB		 1388 if (netif_running(dev))
1389 return -EBUSY;
e8347eba 1390
43b19952
JB		 1391 if (!rdev->ops->set_wds_peer)
1392 return -EOPNOTSUPP;
e8347eba 1393
43b19952
JB		 1394 if (wdev->iftype != NL80211_IFTYPE_WDS)
1395 return -EOPNOTSUPP;
e8347eba
BJ		 1396
1397 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 1398 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 1399}
1400
1401
55682965
JB		 1402static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1403{
1404 struct cfg80211_registered_device *rdev;
f444de05
JB		 1405 struct net_device *netdev = NULL;
1406 struct wireless_dev *wdev;
a1e567c8 1407 int result = 0, rem_txq_params = 0;
31888487 1408 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1409 u32 changed;
1410 u8 retry_short = 0, retry_long = 0;
1411 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1412 u8 coverage_class = 0;
55682965 1413
f444de05
JB		 1414 /*
1415 * Try to find the wiphy and netdev. Normally this
1416 * function shouldn't need the netdev, but this is
1417 * done for backward compatibility -- previously
1418 * setting the channel was done per wiphy, but now
1419 * it is per netdev. Previous userland like hostapd
1420 * also passed a netdev to set_wiphy, so that it is
1421 * possible to let that go to the right netdev!
1422 */
4bbf4d56
JB		 1423 mutex_lock(&cfg80211_mutex);
1424
f444de05
JB		 1425 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1426 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1427
1428 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1429 if (netdev && netdev->ieee80211_ptr) {
1430 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1431 mutex_lock(&rdev->mtx);
1432 } else
1433 netdev = NULL;
4bbf4d56
JB		 1434 }
1435
f444de05 1436 if (!netdev) {
878d9ec7
JB		 1437 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1438 info->attrs);
f444de05
JB		 1439 if (IS_ERR(rdev)) {
1440 mutex_unlock(&cfg80211_mutex);
4c476991 1441 return PTR_ERR(rdev);
f444de05
JB		 1442 }
1443 wdev = NULL;
1444 netdev = NULL;
1445 result = 0;
1446
1447 mutex_lock(&rdev->mtx);
cc1d2806 1448 } else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
f444de05
JB		 1449 wdev = netdev->ieee80211_ptr;
1450 else
1451 wdev = NULL;
1452
1453 /*
1454 * end workaround code, by now the rdev is available
1455 * and locked, and wdev may or may not be NULL.
1456 */
4bbf4d56
JB		 1457
1458 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1459 result = cfg80211_dev_rename(
1460 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1461
1462 mutex_unlock(&cfg80211_mutex);
1463
1464 if (result)
1465 goto bad_res;
31888487
JM		 1466
1467 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1468 struct ieee80211_txq_params txq_params;
1469 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1470
1471 if (!rdev->ops->set_txq_params) {
1472 result = -EOPNOTSUPP;
1473 goto bad_res;
1474 }
1475
f70f01c2
EP		 1476 if (!netdev) {
1477 result = -EINVAL;
1478 goto bad_res;
1479 }
1480
133a3ff2
JB		 1481 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1482 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1483 result = -EINVAL;
1484 goto bad_res;
1485 }
1486
2b5f8b0b
JB		 1487 if (!netif_running(netdev)) {
1488 result = -ENETDOWN;
1489 goto bad_res;
1490 }
1491
31888487
JM		 1492 nla_for_each_nested(nl_txq_params,
1493 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1494 rem_txq_params) {
1495 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1496 nla_data(nl_txq_params),
1497 nla_len(nl_txq_params),
1498 txq_params_policy);
1499 result = parse_txq_params(tb, &txq_params);
1500 if (result)
1501 goto bad_res;
1502
1503 result = rdev->ops->set_txq_params(&rdev->wiphy,
f70f01c2 1504 netdev,
31888487
JM		 1505 &txq_params);
1506 if (result)
1507 goto bad_res;
1508 }
1509 }
55682965 1510
72bdcf34 1511 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1512 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1513 if (result)
1514 goto bad_res;
1515 }
1516
98d2ff8b
JO		 1517 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1518 enum nl80211_tx_power_setting type;
1519 int idx, mbm = 0;
1520
1521 if (!rdev->ops->set_tx_power) {
60ea385f 1522 result = -EOPNOTSUPP;
98d2ff8b
JO		 1523 goto bad_res;
1524 }
1525
1526 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1527 type = nla_get_u32(info->attrs[idx]);
1528
1529 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1530 (type != NL80211_TX_POWER_AUTOMATIC)) {
1531 result = -EINVAL;
1532 goto bad_res;
1533 }
1534
1535 if (type != NL80211_TX_POWER_AUTOMATIC) {
1536 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1537 mbm = nla_get_u32(info->attrs[idx]);
1538 }
1539
1540 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1541 if (result)
1542 goto bad_res;
1543 }
1544
afe0cbf8
BR		 1545 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1546 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1547 u32 tx_ant, rx_ant;
7f531e03
BR		 1548 if ((!rdev->wiphy.available_antennas_tx &&
1549 !rdev->wiphy.available_antennas_rx) ||
1550 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1551 result = -EOPNOTSUPP;
1552 goto bad_res;
1553 }
1554
1555 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1556 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1557
a7ffac95 1558 /* reject antenna configurations which don't match the
7f531e03
BR		 1559 * available antenna masks, except for the "all" mask */
1560 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1561 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1562 result = -EINVAL;
1563 goto bad_res;
1564 }
1565
7f531e03
BR		 1566 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1567 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1568
afe0cbf8
BR		 1569 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1570 if (result)
1571 goto bad_res;
1572 }
1573
b9a5f8ca
JM		 1574 changed = 0;
1575
1576 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1577 retry_short = nla_get_u8(
1578 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1579 if (retry_short == 0) {
1580 result = -EINVAL;
1581 goto bad_res;
1582 }
1583 changed |= WIPHY_PARAM_RETRY_SHORT;
1584 }
1585
1586 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1587 retry_long = nla_get_u8(
1588 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1589 if (retry_long == 0) {
1590 result = -EINVAL;
1591 goto bad_res;
1592 }
1593 changed |= WIPHY_PARAM_RETRY_LONG;
1594 }
1595
1596 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1597 frag_threshold = nla_get_u32(
1598 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1599 if (frag_threshold < 256) {
1600 result = -EINVAL;
1601 goto bad_res;
1602 }
1603 if (frag_threshold != (u32) -1) {
1604 /*
1605 * Fragments (apart from the last one) are required to
1606 * have even length. Make the fragmentation code
1607 * simpler by stripping LSB should someone try to use
1608 * odd threshold value.
1609 */
1610 frag_threshold &= ~0x1;
1611 }
1612 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1613 }
1614
1615 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1616 rts_threshold = nla_get_u32(
1617 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1618 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1619 }
1620
81077e82
LT		 1621 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1622 coverage_class = nla_get_u8(
1623 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1624 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1625 }
1626
b9a5f8ca
JM		 1627 if (changed) {
1628 u8 old_retry_short, old_retry_long;
1629 u32 old_frag_threshold, old_rts_threshold;
81077e82 1630 u8 old_coverage_class;
b9a5f8ca
JM		 1631
1632 if (!rdev->ops->set_wiphy_params) {
1633 result = -EOPNOTSUPP;
1634 goto bad_res;
1635 }
1636
1637 old_retry_short = rdev->wiphy.retry_short;
1638 old_retry_long = rdev->wiphy.retry_long;
1639 old_frag_threshold = rdev->wiphy.frag_threshold;
1640 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1641 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1642
1643 if (changed & WIPHY_PARAM_RETRY_SHORT)
1644 rdev->wiphy.retry_short = retry_short;
1645 if (changed & WIPHY_PARAM_RETRY_LONG)
1646 rdev->wiphy.retry_long = retry_long;
1647 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1648 rdev->wiphy.frag_threshold = frag_threshold;
1649 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1650 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1651 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1652 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1653
1654 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1655 if (result) {
1656 rdev->wiphy.retry_short = old_retry_short;
1657 rdev->wiphy.retry_long = old_retry_long;
1658 rdev->wiphy.frag_threshold = old_frag_threshold;
1659 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1660 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1661 }
1662 }
72bdcf34 1663
306d6112 1664 bad_res:
4bbf4d56 1665 mutex_unlock(&rdev->mtx);
f444de05
JB		 1666 if (netdev)
1667 dev_put(netdev);
55682965
JB		 1668 return result;
1669}
1670
1671
1672static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1673 struct cfg80211_registered_device *rdev,
55682965
JB		 1674 struct net_device *dev)
1675{
1676 void *hdr;
1677
1678 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1679 if (!hdr)
1680 return -1;
1681
9360ffd1
DM		 1682 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1683 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1684 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name) ||
1685 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1686 dev->ieee80211_ptr->iftype) ||
1687 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1688 rdev->devlist_generation ^
1689 (cfg80211_rdev_list_generation << 2)))
1690 goto nla_put_failure;
f5ea9120 1691
d91df0e3
PF		 1692 if (rdev->ops->get_channel) {
1693 struct ieee80211_channel *chan;
1694 enum nl80211_channel_type channel_type;
1695
1696 chan = rdev->ops->get_channel(&rdev->wiphy, &channel_type);
59ef43e6
JL		 1697 if (chan &&
1698 (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1699 chan->center_freq) ||
1700 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1701 channel_type)))
1702 goto nla_put_failure;
d91df0e3
PF		 1703 }
1704
55682965
JB		 1705 return genlmsg_end(msg, hdr);
1706
1707 nla_put_failure:
bc3ed28c
TG		 1708 genlmsg_cancel(msg, hdr);
1709 return -EMSGSIZE;
55682965
JB		 1710}
1711
1712static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1713{
1714 int wp_idx = 0;
1715 int if_idx = 0;
1716 int wp_start = cb->args[0];
1717 int if_start = cb->args[1];
f5ea9120 1718 struct cfg80211_registered_device *rdev;
55682965
JB		 1719 struct wireless_dev *wdev;
1720
a1794390 1721 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1722 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1723 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1724 continue;
bba95fef
JB		 1725 if (wp_idx < wp_start) {
1726 wp_idx++;
55682965 1727 continue;
bba95fef 1728 }
55682965
JB		 1729 if_idx = 0;
1730
f5ea9120
JB		 1731 mutex_lock(&rdev->devlist_mtx);
1732 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1733 if (if_idx < if_start) {
1734 if_idx++;
55682965 1735 continue;
bba95fef 1736 }
55682965
JB		 1737 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1738 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1739 rdev, wdev->netdev) < 0) {
1740 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1741 goto out;
1742 }
1743 if_idx++;
55682965 1744 }
f5ea9120 1745 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1746
1747 wp_idx++;
55682965 1748 }
bba95fef 1749 out:
a1794390 1750 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1751
1752 cb->args[0] = wp_idx;
1753 cb->args[1] = if_idx;
1754
1755 return skb->len;
1756}
1757
1758static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1759{
1760 struct sk_buff *msg;
4c476991
JB		 1761 struct cfg80211_registered_device *dev = info->user_ptr[0];
1762 struct net_device *netdev = info->user_ptr[1];
55682965 1763
fd2120ca 1764 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1765 if (!msg)
4c476991 1766 return -ENOMEM;
55682965 1767
d726405a 1768 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1769 dev, netdev) < 0) {
1770 nlmsg_free(msg);
1771 return -ENOBUFS;
1772 }
55682965 1773
134e6375 1774 return genlmsg_reply(msg, info);
55682965
JB		 1775}
1776
66f7ac50
MW		 1777static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1778 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1779 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1780 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1781 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1782 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1783};
1784
1785static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1786{
1787 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1788 int flag;
1789
1790 *mntrflags = 0;
1791
1792 if (!nla)
1793 return -EINVAL;
1794
1795 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1796 nla, mntr_flags_policy))
1797 return -EINVAL;
1798
1799 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1800 if (flags[flag])
1801 *mntrflags |= (1<<flag);
1802
1803 return 0;
1804}
1805
9bc383de 1806static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1807 struct net_device *netdev, u8 use_4addr,
1808 enum nl80211_iftype iftype)
9bc383de 1809{
ad4bb6f8 1810 if (!use_4addr) {
f350a0a8 1811 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1812 return -EBUSY;
9bc383de 1813 return 0;
ad4bb6f8 1814 }
9bc383de
JB		 1815
1816 switch (iftype) {
1817 case NL80211_IFTYPE_AP_VLAN:
1818 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1819 return 0;
1820 break;
1821 case NL80211_IFTYPE_STATION:
1822 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1823 return 0;
1824 break;
1825 default:
1826 break;
1827 }
1828
1829 return -EOPNOTSUPP;
1830}
1831
55682965
JB		 1832static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1833{
4c476991 1834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1835 struct vif_params params;
e36d56b6 1836 int err;
04a773ad 1837 enum nl80211_iftype otype, ntype;
4c476991 1838 struct net_device *dev = info->user_ptr[1];
92ffe055 1839 u32 _flags, *flags = NULL;
ac7f9cfa 1840 bool change = false;
55682965 1841
2ec600d6
LCC		 1842 memset(&params, 0, sizeof(params));
1843
04a773ad 1844 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1845
723b038d 1846 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1847 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1848 if (otype != ntype)
ac7f9cfa 1849 change = true;
4c476991
JB		 1850 if (ntype > NL80211_IFTYPE_MAX)
1851 return -EINVAL;
723b038d
JB		 1852 }
1853
92ffe055 1854 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1855 struct wireless_dev *wdev = dev->ieee80211_ptr;
1856
4c476991
JB		 1857 if (ntype != NL80211_IFTYPE_MESH_POINT)
1858 return -EINVAL;
29cbe68c
JB		 1859 if (netif_running(dev))
1860 return -EBUSY;
1861
1862 wdev_lock(wdev);
1863 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1864 IEEE80211_MAX_MESH_ID_LEN);
1865 wdev->mesh_id_up_len =
1866 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1867 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1868 wdev->mesh_id_up_len);
1869 wdev_unlock(wdev);
2ec600d6
LCC		 1870 }
1871
8b787643
FF		 1872 if (info->attrs[NL80211_ATTR_4ADDR]) {
1873 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1874 change = true;
ad4bb6f8 1875 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1876 if (err)
4c476991 1877 return err;
8b787643
FF		 1878 } else {
1879 params.use_4addr = -1;
1880 }
1881
92ffe055 1882 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1883 if (ntype != NL80211_IFTYPE_MONITOR)
1884 return -EINVAL;
92ffe055
JB		 1885 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1886 &_flags);
ac7f9cfa 1887 if (err)
4c476991 1888 return err;
ac7f9cfa
JB		 1889
1890 flags = &_flags;
1891 change = true;
92ffe055 1892 }
3b85875a 1893
ac7f9cfa 1894 if (change)
3d54d255 1895 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1896 else
1897 err = 0;
60719ffd 1898
9bc383de
JB		 1899 if (!err && params.use_4addr != -1)
1900 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1901
55682965
JB		 1902 return err;
1903}
1904
1905static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1906{
4c476991 1907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1908 struct vif_params params;
f9e10ce4 1909 struct net_device *dev;
55682965
JB		 1910 int err;
1911 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1912 u32 flags;
55682965 1913
2ec600d6
LCC		 1914 memset(&params, 0, sizeof(params));
1915
55682965
JB		 1916 if (!info->attrs[NL80211_ATTR_IFNAME])
1917 return -EINVAL;
1918
1919 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1920 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1921 if (type > NL80211_IFTYPE_MAX)
1922 return -EINVAL;
1923 }
1924
79c97e97 1925 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1926 !(rdev->wiphy.interface_modes & (1 << type)))
1927 return -EOPNOTSUPP;
55682965 1928
9bc383de 1929 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1930 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1931 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1932 if (err)
4c476991 1933 return err;
9bc383de 1934 }
8b787643 1935
66f7ac50
MW		 1936 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1937 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1938 &flags);
f9e10ce4 1939 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1940 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1941 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1942 if (IS_ERR(dev))
1943 return PTR_ERR(dev);
2ec600d6 1944
29cbe68c
JB		 1945 if (type == NL80211_IFTYPE_MESH_POINT &&
1946 info->attrs[NL80211_ATTR_MESH_ID]) {
1947 struct wireless_dev *wdev = dev->ieee80211_ptr;
1948
1949 wdev_lock(wdev);
1950 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1951 IEEE80211_MAX_MESH_ID_LEN);
1952 wdev->mesh_id_up_len =
1953 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1954 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1955 wdev->mesh_id_up_len);
1956 wdev_unlock(wdev);
1957 }
1958
f9e10ce4 1959 return 0;
55682965
JB		 1960}
1961
1962static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1963{
4c476991
JB		 1964 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1965 struct net_device *dev = info->user_ptr[1];
55682965 1966
4c476991
JB		 1967 if (!rdev->ops->del_virtual_intf)
1968 return -EOPNOTSUPP;
55682965 1969
4c476991 1970 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1971}
1972
1d9d9213
SW		 1973static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
1974{
1975 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1976 struct net_device *dev = info->user_ptr[1];
1977 u16 noack_map;
1978
1979 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
1980 return -EINVAL;
1981
1982 if (!rdev->ops->set_noack_map)
1983 return -EOPNOTSUPP;
1984
1985 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
1986
1987 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
1988}
1989
41ade00f
JB		 1990struct get_key_cookie {
1991 struct sk_buff *msg;
1992 int error;
b9454e83 1993 int idx;
41ade00f
JB		 1994};
1995
1996static void get_key_callback(void *c, struct key_params *params)
1997{
b9454e83 1998 struct nlattr *key;
41ade00f
JB		 1999 struct get_key_cookie *cookie = c;
2000
9360ffd1
DM		 2001 if ((params->key &&
2002 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2003 params->key_len, params->key)) ||
2004 (params->seq &&
2005 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2006 params->seq_len, params->seq)) ||
2007 (params->cipher &&
2008 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2009 params->cipher)))
2010 goto nla_put_failure;
41ade00f 2011
b9454e83
JB		 2012 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2013 if (!key)
2014 goto nla_put_failure;
2015
9360ffd1
DM		 2016 if ((params->key &&
2017 nla_put(cookie->msg, NL80211_KEY_DATA,
2018 params->key_len, params->key)) ||
2019 (params->seq &&
2020 nla_put(cookie->msg, NL80211_KEY_SEQ,
2021 params->seq_len, params->seq)) ||
2022 (params->cipher &&
2023 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2024 params->cipher)))
2025 goto nla_put_failure;
b9454e83 2026
9360ffd1
DM		 2027 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2028 goto nla_put_failure;
b9454e83
JB		 2029
2030 nla_nest_end(cookie->msg, key);
2031
41ade00f
JB		 2032 return;
2033 nla_put_failure:
2034 cookie->error = 1;
2035}
2036
2037static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2038{
4c476991 2039 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2040 int err;
4c476991 2041 struct net_device *dev = info->user_ptr[1];
41ade00f 2042 u8 key_idx = 0;
e31b8213
JB		 2043 const u8 *mac_addr = NULL;
2044 bool pairwise;
41ade00f
JB		 2045 struct get_key_cookie cookie = {
2046 .error = 0,
2047 };
2048 void *hdr;
2049 struct sk_buff *msg;
2050
2051 if (info->attrs[NL80211_ATTR_KEY_IDX])
2052 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2053
3cfcf6ac 2054 if (key_idx > 5)
41ade00f
JB		 2055 return -EINVAL;
2056
2057 if (info->attrs[NL80211_ATTR_MAC])
2058 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2059
e31b8213
JB		 2060 pairwise = !!mac_addr;
2061 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2062 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2063 if (kt >= NUM_NL80211_KEYTYPES)
2064 return -EINVAL;
2065 if (kt != NL80211_KEYTYPE_GROUP &&
2066 kt != NL80211_KEYTYPE_PAIRWISE)
2067 return -EINVAL;
2068 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2069 }
2070
4c476991
JB		 2071 if (!rdev->ops->get_key)
2072 return -EOPNOTSUPP;
41ade00f 2073
fd2120ca 2074 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2075 if (!msg)
2076 return -ENOMEM;
41ade00f
JB		 2077
2078 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2079 NL80211_CMD_NEW_KEY);
4c476991
JB		 2080 if (IS_ERR(hdr))
2081 return PTR_ERR(hdr);
41ade00f
JB		 2082
2083 cookie.msg = msg;
b9454e83 2084 cookie.idx = key_idx;
41ade00f 2085
9360ffd1
DM		 2086 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2087 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2088 goto nla_put_failure;
2089 if (mac_addr &&
2090 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2091 goto nla_put_failure;
41ade00f 2092
e31b8213
JB		 2093 if (pairwise && mac_addr &&
2094 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2095 return -ENOENT;
2096
2097 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
2098 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 2099
2100 if (err)
6c95e2a2 2101 goto free_msg;
41ade00f
JB		 2102
2103 if (cookie.error)
2104 goto nla_put_failure;
2105
2106 genlmsg_end(msg, hdr);
4c476991 2107 return genlmsg_reply(msg, info);
41ade00f
JB		 2108
2109 nla_put_failure:
2110 err = -ENOBUFS;
6c95e2a2 2111 free_msg:
41ade00f 2112 nlmsg_free(msg);
41ade00f
JB		 2113 return err;
2114}
2115
2116static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2117{
4c476991 2118 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2119 struct key_parse key;
41ade00f 2120 int err;
4c476991 2121 struct net_device *dev = info->user_ptr[1];
41ade00f 2122
b9454e83
JB		 2123 err = nl80211_parse_key(info, &key);
2124 if (err)
2125 return err;
41ade00f 2126
b9454e83 2127 if (key.idx < 0)
41ade00f
JB		 2128 return -EINVAL;
2129
b9454e83
JB		 2130 /* only support setting default key */
2131 if (!key.def && !key.defmgmt)
41ade00f
JB		 2132 return -EINVAL;
2133
dbd2fd65 2134 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2135
dbd2fd65
JB		 2136 if (key.def) {
2137 if (!rdev->ops->set_default_key) {
2138 err = -EOPNOTSUPP;
2139 goto out;
2140 }
41ade00f 2141
dbd2fd65
JB		 2142 err = nl80211_key_allowed(dev->ieee80211_ptr);
2143 if (err)
2144 goto out;
2145
dbd2fd65
JB		 2146 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
2147 key.def_uni, key.def_multi);
2148
2149 if (err)
2150 goto out;
fffd0934 2151
3d23e349 2152#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2153 dev->ieee80211_ptr->wext.default_key = key.idx;
2154#endif
2155 } else {
2156 if (key.def_uni || !key.def_multi) {
2157 err = -EINVAL;
2158 goto out;
2159 }
2160
2161 if (!rdev->ops->set_default_mgmt_key) {
2162 err = -EOPNOTSUPP;
2163 goto out;
2164 }
2165
2166 err = nl80211_key_allowed(dev->ieee80211_ptr);
2167 if (err)
2168 goto out;
2169
2170 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
2171 dev, key.idx);
2172 if (err)
2173 goto out;
2174
2175#ifdef CONFIG_CFG80211_WEXT
2176 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2177#endif
dbd2fd65
JB		 2178 }
2179
2180 out:
fffd0934 2181 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2182
41ade00f
JB		 2183 return err;
2184}
2185
2186static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2187{
4c476991 2188 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2189 int err;
4c476991 2190 struct net_device *dev = info->user_ptr[1];
b9454e83 2191 struct key_parse key;
e31b8213 2192 const u8 *mac_addr = NULL;
41ade00f 2193
b9454e83
JB		 2194 err = nl80211_parse_key(info, &key);
2195 if (err)
2196 return err;
41ade00f 2197
b9454e83 2198 if (!key.p.key)
41ade00f
JB		 2199 return -EINVAL;
2200
41ade00f
JB		 2201 if (info->attrs[NL80211_ATTR_MAC])
2202 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2203
e31b8213
JB		 2204 if (key.type == -1) {
2205 if (mac_addr)
2206 key.type = NL80211_KEYTYPE_PAIRWISE;
2207 else
2208 key.type = NL80211_KEYTYPE_GROUP;
2209 }
2210
2211 /* for now */
2212 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2213 key.type != NL80211_KEYTYPE_GROUP)
2214 return -EINVAL;
2215
4c476991
JB		 2216 if (!rdev->ops->add_key)
2217 return -EOPNOTSUPP;
25e47c18 2218
e31b8213
JB		 2219 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2220 key.type == NL80211_KEYTYPE_PAIRWISE,
2221 mac_addr))
4c476991 2222 return -EINVAL;
41ade00f 2223
fffd0934
JB		 2224 wdev_lock(dev->ieee80211_ptr);
2225 err = nl80211_key_allowed(dev->ieee80211_ptr);
2226 if (!err)
2227 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 2228 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 2229 mac_addr, &key.p);
2230 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2231
41ade00f
JB		 2232 return err;
2233}
2234
2235static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2236{
4c476991 2237 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2238 int err;
4c476991 2239 struct net_device *dev = info->user_ptr[1];
41ade00f 2240 u8 *mac_addr = NULL;
b9454e83 2241 struct key_parse key;
41ade00f 2242
b9454e83
JB		 2243 err = nl80211_parse_key(info, &key);
2244 if (err)
2245 return err;
41ade00f
JB		 2246
2247 if (info->attrs[NL80211_ATTR_MAC])
2248 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2249
e31b8213
JB		 2250 if (key.type == -1) {
2251 if (mac_addr)
2252 key.type = NL80211_KEYTYPE_PAIRWISE;
2253 else
2254 key.type = NL80211_KEYTYPE_GROUP;
2255 }
2256
2257 /* for now */
2258 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2259 key.type != NL80211_KEYTYPE_GROUP)
2260 return -EINVAL;
2261
4c476991
JB		 2262 if (!rdev->ops->del_key)
2263 return -EOPNOTSUPP;
41ade00f 2264
fffd0934
JB		 2265 wdev_lock(dev->ieee80211_ptr);
2266 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2267
2268 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2269 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2270 err = -ENOENT;
2271
fffd0934 2272 if (!err)
e31b8213
JB		 2273 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2274 key.type == NL80211_KEYTYPE_PAIRWISE,
2275 mac_addr);
41ade00f 2276
3d23e349 2277#ifdef CONFIG_CFG80211_WEXT
08645126 2278 if (!err) {
b9454e83 2279 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2280 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2281 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2282 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2283 }
2284#endif
fffd0934 2285 wdev_unlock(dev->ieee80211_ptr);
08645126 2286
41ade00f
JB		 2287 return err;
2288}
2289
8860020e
JB		 2290static int nl80211_parse_beacon(struct genl_info *info,
2291 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2292{
8860020e 2293 bool haveinfo = false;
ed1b6cc7 2294
9946ecfb
JM		 2295 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2296 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2297 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2298 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2299 return -EINVAL;
2300
8860020e 2301 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2302
ed1b6cc7 2303 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2304 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2305 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2306 if (!bcn->head_len)
2307 return -EINVAL;
2308 haveinfo = true;
ed1b6cc7
JB		 2309 }
2310
2311 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2312 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2313 bcn->tail_len =
ed1b6cc7 2314 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2315 haveinfo = true;
ed1b6cc7
JB		 2316 }
2317
4c476991
JB		 2318 if (!haveinfo)
2319 return -EINVAL;
3b85875a 2320
9946ecfb 2321 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2322 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2323 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2324 }
2325
2326 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2327 bcn->proberesp_ies =
9946ecfb 2328 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2329 bcn->proberesp_ies_len =
9946ecfb
JM		 2330 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2331 }
2332
2333 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2334 bcn->assocresp_ies =
9946ecfb 2335 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2336 bcn->assocresp_ies_len =
9946ecfb
JM		 2337 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2338 }
2339
00f740e1 2340 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2341 bcn->probe_resp =
00f740e1 2342 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2343 bcn->probe_resp_len =
00f740e1
AN		 2344 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2345 }
2346
8860020e
JB		 2347 return 0;
2348}
2349
46c1dd0c
FF		 2350static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2351 struct cfg80211_ap_settings *params)
2352{
2353 struct wireless_dev *wdev;
2354 bool ret = false;
2355
2356 mutex_lock(&rdev->devlist_mtx);
2357
2358 list_for_each_entry(wdev, &rdev->netdev_list, list) {
2359 if (wdev->iftype != NL80211_IFTYPE_AP &&
2360 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2361 continue;
2362
2363 if (!wdev->preset_chan)
2364 continue;
2365
2366 params->channel = wdev->preset_chan;
2367 params->channel_type = wdev->preset_chantype;
2368 ret = true;
2369 break;
2370 }
2371
2372 mutex_unlock(&rdev->devlist_mtx);
2373
2374 return ret;
2375}
2376
8860020e
JB		 2377static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2378{
2379 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2380 struct net_device *dev = info->user_ptr[1];
2381 struct wireless_dev *wdev = dev->ieee80211_ptr;
2382 struct cfg80211_ap_settings params;
2383 int err;
2384
2385 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2386 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2387 return -EOPNOTSUPP;
2388
2389 if (!rdev->ops->start_ap)
2390 return -EOPNOTSUPP;
2391
2392 if (wdev->beacon_interval)
2393 return -EALREADY;
2394
2395 memset(&params, 0, sizeof(params));
2396
2397 /* these are required for START_AP */
2398 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2399 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2400 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2401 return -EINVAL;
2402
2403 err = nl80211_parse_beacon(info, &params.beacon);
2404 if (err)
2405 return err;
2406
2407 params.beacon_interval =
2408 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2409 params.dtim_period =
2410 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2411
2412 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2413 if (err)
2414 return err;
2415
2416 /*
2417 * In theory, some of these attributes should be required here
2418 * but since they were not used when the command was originally
2419 * added, keep them optional for old user space programs to let
2420 * them continue to work with drivers that do not need the
2421 * additional information -- drivers must check!
2422 */
2423 if (info->attrs[NL80211_ATTR_SSID]) {
2424 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2425 params.ssid_len =
2426 nla_len(info->attrs[NL80211_ATTR_SSID]);
2427 if (params.ssid_len == 0 ||
2428 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2429 return -EINVAL;
2430 }
2431
2432 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2433 params.hidden_ssid = nla_get_u32(
2434 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2435 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2436 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2437 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2438 return -EINVAL;
2439 }
2440
2441 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2442
2443 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2444 params.auth_type = nla_get_u32(
2445 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2446 if (!nl80211_valid_auth_type(params.auth_type))
2447 return -EINVAL;
2448 } else
2449 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2450
2451 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2452 NL80211_MAX_NR_CIPHER_SUITES);
2453 if (err)
2454 return err;
2455
1b658f11
VT		 2456 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2457 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2458 return -EOPNOTSUPP;
2459 params.inactivity_timeout = nla_get_u16(
2460 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2461 }
2462
aa430da4
JB		 2463 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2464 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2465
2466 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2467 !nl80211_valid_channel_type(info, &channel_type))
2468 return -EINVAL;
2469
2470 params.channel = rdev_freq_to_chan(rdev,
2471 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2472 channel_type);
2473 if (!params.channel)
2474 return -EINVAL;
2475 params.channel_type = channel_type;
2476 } else if (wdev->preset_chan) {
2477 params.channel = wdev->preset_chan;
2478 params.channel_type = wdev->preset_chantype;
46c1dd0c 2479 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 2480 return -EINVAL;
2481
2482 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2483 params.channel_type))
2484 return -EINVAL;
2485
8860020e 2486 err = rdev->ops->start_ap(&rdev->wiphy, dev, &params);
46c1dd0c
FF		 2487 if (!err) {
2488 wdev->preset_chan = params.channel;
2489 wdev->preset_chantype = params.channel_type;
8860020e 2490 wdev->beacon_interval = params.beacon_interval;
46c1dd0c 2491 }
56d1893d 2492 return err;
ed1b6cc7
JB		 2493}
2494
8860020e
JB		 2495static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2496{
2497 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2498 struct net_device *dev = info->user_ptr[1];
2499 struct wireless_dev *wdev = dev->ieee80211_ptr;
2500 struct cfg80211_beacon_data params;
2501 int err;
2502
2503 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2504 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2505 return -EOPNOTSUPP;
2506
2507 if (!rdev->ops->change_beacon)
2508 return -EOPNOTSUPP;
2509
2510 if (!wdev->beacon_interval)
2511 return -EINVAL;
2512
2513 err = nl80211_parse_beacon(info, &params);
2514 if (err)
2515 return err;
2516
2517 return rdev->ops->change_beacon(&rdev->wiphy, dev, &params);
2518}
2519
2520static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 2521{
4c476991
JB		 2522 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2523 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 2524
60771780 2525 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 2526}
2527
5727ef1b
JB		 2528static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2529 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2530 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2531 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2532 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2533 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2534 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2535};
2536
eccb8e8f 2537static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2538 enum nl80211_iftype iftype,
eccb8e8f 2539 struct station_parameters *params)
5727ef1b
JB		 2540{
2541 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2542 struct nlattr *nla;
5727ef1b
JB		 2543 int flag;
2544
eccb8e8f
JB		 2545 /*
2546 * Try parsing the new attribute first so userspace
2547 * can specify both for older kernels.
2548 */
2549 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2550 if (nla) {
2551 struct nl80211_sta_flag_update *sta_flags;
2552
2553 sta_flags = nla_data(nla);
2554 params->sta_flags_mask = sta_flags->mask;
2555 params->sta_flags_set = sta_flags->set;
2556 if ((params->sta_flags_mask |
2557 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2558 return -EINVAL;
2559 return 0;
2560 }
2561
2562 /* if present, parse the old attribute */
5727ef1b 2563
eccb8e8f 2564 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2565 if (!nla)
2566 return 0;
2567
2568 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2569 nla, sta_flags_policy))
2570 return -EINVAL;
2571
bdd3ae3d
JB		 2572 /*
2573 * Only allow certain flags for interface types so that
2574 * other attributes are silently ignored. Remember that
2575 * this is backward compatibility code with old userspace
2576 * and shouldn't be hit in other cases anyway.
2577 */
2578 switch (iftype) {
2579 case NL80211_IFTYPE_AP:
2580 case NL80211_IFTYPE_AP_VLAN:
2581 case NL80211_IFTYPE_P2P_GO:
2582 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2583 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2584 BIT(NL80211_STA_FLAG_WME) |
2585 BIT(NL80211_STA_FLAG_MFP);
2586 break;
2587 case NL80211_IFTYPE_P2P_CLIENT:
2588 case NL80211_IFTYPE_STATION:
2589 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2590 BIT(NL80211_STA_FLAG_TDLS_PEER);
2591 break;
2592 case NL80211_IFTYPE_MESH_POINT:
2593 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2594 BIT(NL80211_STA_FLAG_MFP) |
2595 BIT(NL80211_STA_FLAG_AUTHORIZED);
2596 default:
2597 return -EINVAL;
2598 }
5727ef1b 2599
3383b5a6
JB		 2600 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2601 if (flags[flag]) {
eccb8e8f 2602 params->sta_flags_set |= (1<<flag);
5727ef1b 2603
3383b5a6
JB		 2604 /* no longer support new API additions in old API */
2605 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2606 return -EINVAL;
2607 }
2608 }
2609
5727ef1b
JB		 2610 return 0;
2611}
2612
c8dcfd8a
FF		 2613static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2614 int attr)
2615{
2616 struct nlattr *rate;
2617 u16 bitrate;
2618
2619 rate = nla_nest_start(msg, attr);
2620 if (!rate)
2621 goto nla_put_failure;
2622
2623 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2624 bitrate = cfg80211_calculate_bitrate(info);
9360ffd1
DM		 2625 if ((bitrate > 0 &&
2626 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate)) ||
2627 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2628 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2629 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2630 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2631 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2632 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2633 goto nla_put_failure;
c8dcfd8a
FF		 2634
2635 nla_nest_end(msg, rate);
2636 return true;
2637
2638nla_put_failure:
2639 return false;
2640}
2641
fd5b74dc 2642static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
66266b3a
JL		 2643 int flags,
2644 struct cfg80211_registered_device *rdev,
2645 struct net_device *dev,
98b62183 2646 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2647{
2648 void *hdr;
f4263c98 2649 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2650
2651 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2652 if (!hdr)
2653 return -1;
2654
9360ffd1
DM		 2655 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2656 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2657 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2658 goto nla_put_failure;
f5ea9120 2659
2ec600d6
LCC		 2660 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2661 if (!sinfoattr)
fd5b74dc 2662 goto nla_put_failure;
9360ffd1
DM		 2663 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2664 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2665 sinfo->connected_time))
2666 goto nla_put_failure;
2667 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2668 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2669 sinfo->inactive_time))
2670 goto nla_put_failure;
2671 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2672 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2673 sinfo->rx_bytes))
2674 goto nla_put_failure;
2675 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2676 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2677 sinfo->tx_bytes))
2678 goto nla_put_failure;
2679 if ((sinfo->filled & STATION_INFO_LLID) &&
2680 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2681 goto nla_put_failure;
2682 if ((sinfo->filled & STATION_INFO_PLID) &&
2683 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2684 goto nla_put_failure;
2685 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2686 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2687 sinfo->plink_state))
2688 goto nla_put_failure;
66266b3a
JL		 2689 switch (rdev->wiphy.signal_type) {
2690 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 2691 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2692 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2693 sinfo->signal))
2694 goto nla_put_failure;
2695 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2696 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2697 sinfo->signal_avg))
2698 goto nla_put_failure;
66266b3a
JL		 2699 break;
2700 default:
2701 break;
2702 }
420e7fab 2703 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2704 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2705 NL80211_STA_INFO_TX_BITRATE))
2706 goto nla_put_failure;
2707 }
2708 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2709 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2710 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2711 goto nla_put_failure;
420e7fab 2712 }
9360ffd1
DM		 2713 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2714 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2715 sinfo->rx_packets))
2716 goto nla_put_failure;
2717 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2718 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2719 sinfo->tx_packets))
2720 goto nla_put_failure;
2721 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2722 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2723 sinfo->tx_retries))
2724 goto nla_put_failure;
2725 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2726 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2727 sinfo->tx_failed))
2728 goto nla_put_failure;
2729 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2730 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2731 sinfo->beacon_loss_count))
2732 goto nla_put_failure;
f4263c98
PS		 2733 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2734 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2735 if (!bss_param)
2736 goto nla_put_failure;
2737
9360ffd1
DM		 2738 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2739 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2740 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2741 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2742 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2743 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2744 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2745 sinfo->bss_param.dtim_period) ||
2746 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2747 sinfo->bss_param.beacon_interval))
2748 goto nla_put_failure;
f4263c98
PS		 2749
2750 nla_nest_end(msg, bss_param);
2751 }
9360ffd1
DM		 2752 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2753 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2754 sizeof(struct nl80211_sta_flag_update),
2755 &sinfo->sta_flags))
2756 goto nla_put_failure;
7eab0f64
JL		 2757 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2758 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2759 sinfo->t_offset))
2760 goto nla_put_failure;
2ec600d6 2761 nla_nest_end(msg, sinfoattr);
fd5b74dc 2762
9360ffd1
DM		 2763 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2764 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2765 sinfo->assoc_req_ies))
2766 goto nla_put_failure;
50d3dfb7 2767
fd5b74dc
JB		 2768 return genlmsg_end(msg, hdr);
2769
2770 nla_put_failure:
bc3ed28c
TG		 2771 genlmsg_cancel(msg, hdr);
2772 return -EMSGSIZE;
fd5b74dc
JB		 2773}
2774
2ec600d6 2775static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2776 struct netlink_callback *cb)
2ec600d6 2777{
2ec600d6
LCC		 2778 struct station_info sinfo;
2779 struct cfg80211_registered_device *dev;
bba95fef 2780 struct net_device *netdev;
2ec600d6 2781 u8 mac_addr[ETH_ALEN];
bba95fef 2782 int sta_idx = cb->args[1];
2ec600d6 2783 int err;
2ec600d6 2784
67748893
JB		 2785 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2786 if (err)
2787 return err;
bba95fef
JB		 2788
2789 if (!dev->ops->dump_station) {
eec60b03 2790 err = -EOPNOTSUPP;
bba95fef
JB		 2791 goto out_err;
2792 }
2793
bba95fef 2794 while (1) {
f612cedf 2795 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2796 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2797 mac_addr, &sinfo);
2798 if (err == -ENOENT)
2799 break;
2800 if (err)
3b85875a 2801 goto out_err;
bba95fef
JB		 2802
2803 if (nl80211_send_station(skb,
2804 NETLINK_CB(cb->skb).pid,
2805 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 2806 dev, netdev, mac_addr,
bba95fef
JB		 2807 &sinfo) < 0)
2808 goto out;
2809
2810 sta_idx++;
2811 }
2812
2813
2814 out:
2815 cb->args[1] = sta_idx;
2816 err = skb->len;
bba95fef 2817 out_err:
67748893 2818 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2819
2820 return err;
2ec600d6 2821}
fd5b74dc 2822
5727ef1b
JB		 2823static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2824{
4c476991
JB		 2825 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2826 struct net_device *dev = info->user_ptr[1];
2ec600d6 2827 struct station_info sinfo;
fd5b74dc
JB		 2828 struct sk_buff *msg;
2829 u8 *mac_addr = NULL;
4c476991 2830 int err;
fd5b74dc 2831
2ec600d6 2832 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2833
2834 if (!info->attrs[NL80211_ATTR_MAC])
2835 return -EINVAL;
2836
2837 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2838
4c476991
JB		 2839 if (!rdev->ops->get_station)
2840 return -EOPNOTSUPP;
3b85875a 2841
4c476991 2842 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2843 if (err)
4c476991 2844 return err;
2ec600d6 2845
fd2120ca 2846 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2847 if (!msg)
4c476991 2848 return -ENOMEM;
fd5b74dc
JB		 2849
2850 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
66266b3a 2851 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 2852 nlmsg_free(msg);
2853 return -ENOBUFS;
2854 }
3b85875a 2855
4c476991 2856 return genlmsg_reply(msg, info);
5727ef1b
JB		 2857}
2858
2859/*
c258d2de 2860 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2861 */
80b99899
JB		 2862static struct net_device *get_vlan(struct genl_info *info,
2863 struct cfg80211_registered_device *rdev)
5727ef1b 2864{
463d0183 2865 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 2866 struct net_device *v;
2867 int ret;
2868
2869 if (!vlanattr)
2870 return NULL;
2871
2872 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2873 if (!v)
2874 return ERR_PTR(-ENODEV);
2875
2876 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2877 ret = -EINVAL;
2878 goto error;
5727ef1b 2879 }
80b99899
JB		 2880
2881 if (!netif_running(v)) {
2882 ret = -ENETDOWN;
2883 goto error;
2884 }
2885
2886 return v;
2887 error:
2888 dev_put(v);
2889 return ERR_PTR(ret);
5727ef1b
JB		 2890}
2891
2892static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2893{
4c476991 2894 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2895 int err;
4c476991 2896 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2897 struct station_parameters params;
2898 u8 *mac_addr = NULL;
2899
2900 memset(&params, 0, sizeof(params));
2901
2902 params.listen_interval = -1;
57cf8043 2903 params.plink_state = -1;
5727ef1b
JB		 2904
2905 if (info->attrs[NL80211_ATTR_STA_AID])
2906 return -EINVAL;
2907
2908 if (!info->attrs[NL80211_ATTR_MAC])
2909 return -EINVAL;
2910
2911 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2912
2913 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2914 params.supported_rates =
2915 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2916 params.supported_rates_len =
2917 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2918 }
2919
2920 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2921 params.listen_interval =
2922 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2923
36aedc90
JM		 2924 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2925 params.ht_capa =
2926 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2927
bdd90d5e
JB		 2928 if (!rdev->ops->change_station)
2929 return -EOPNOTSUPP;
2930
bdd3ae3d 2931 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 2932 return -EINVAL;
2933
2ec600d6
LCC		 2934 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2935 params.plink_action =
2936 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2937
9c3990aa
JC		 2938 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2939 params.plink_state =
2940 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2941
a97f4424
JB		 2942 switch (dev->ieee80211_ptr->iftype) {
2943 case NL80211_IFTYPE_AP:
2944 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2945 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2946 /* disallow mesh-specific things */
2947 if (params.plink_action)
bdd90d5e
JB		 2948 return -EINVAL;
2949
2950 /* TDLS can't be set, ... */
2951 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2952 return -EINVAL;
2953 /*
2954 * ... but don't bother the driver with it. This works around
2955 * a hostapd/wpa_supplicant issue -- it always includes the
2956 * TLDS_PEER flag in the mask even for AP mode.
2957 */
2958 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2959
2960 /* accept only the listed bits */
2961 if (params.sta_flags_mask &
2962 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2963 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2964 BIT(NL80211_STA_FLAG_WME) |
2965 BIT(NL80211_STA_FLAG_MFP)))
2966 return -EINVAL;
2967
2968 /* must be last in here for error handling */
2969 params.vlan = get_vlan(info, rdev);
2970 if (IS_ERR(params.vlan))
2971 return PTR_ERR(params.vlan);
a97f4424 2972 break;
074ac8df 2973 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 2974 case NL80211_IFTYPE_STATION:
bdd90d5e
JB		 2975 /*
2976 * Don't allow userspace to change the TDLS_PEER flag,
2977 * but silently ignore attempts to change it since we
2978 * don't have state here to verify that it doesn't try
2979 * to change the flag.
2980 */
2981 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
267335d6
AQ		 2982 /* fall through */
2983 case NL80211_IFTYPE_ADHOC:
2984 /* disallow things sta doesn't support */
2985 if (params.plink_action)
2986 return -EINVAL;
2987 if (params.ht_capa)
2988 return -EINVAL;
2989 if (params.listen_interval >= 0)
2990 return -EINVAL;
bdd90d5e
JB		 2991 /* reject any changes other than AUTHORIZED */
2992 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2993 return -EINVAL;
a97f4424
JB		 2994 break;
2995 case NL80211_IFTYPE_MESH_POINT:
2996 /* disallow things mesh doesn't support */
2997 if (params.vlan)
bdd90d5e 2998 return -EINVAL;
a97f4424 2999 if (params.ht_capa)
bdd90d5e 3000 return -EINVAL;
a97f4424 3001 if (params.listen_interval >= 0)
bdd90d5e
JB		 3002 return -EINVAL;
3003 /*
3004 * No special handling for TDLS here -- the userspace
3005 * mesh code doesn't have this bug.
3006 */
b39c48fa
JC		 3007 if (params.sta_flags_mask &
3008 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 3009 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 3010 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 3011 return -EINVAL;
a97f4424
JB		 3012 break;
3013 default:
bdd90d5e 3014 return -EOPNOTSUPP;
034d655e
JB		 3015 }
3016
bdd90d5e 3017 /* be aware of params.vlan when changing code here */
5727ef1b 3018
79c97e97 3019 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 3020
5727ef1b
JB		 3021 if (params.vlan)
3022 dev_put(params.vlan);
3b85875a 3023
5727ef1b
JB		 3024 return err;
3025}
3026
c75786c9
EP		 3027static struct nla_policy
3028nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3029 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3030 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3031};
3032
5727ef1b
JB		 3033static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3034{
4c476991 3035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3036 int err;
4c476991 3037 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3038 struct station_parameters params;
3039 u8 *mac_addr = NULL;
3040
3041 memset(&params, 0, sizeof(params));
3042
3043 if (!info->attrs[NL80211_ATTR_MAC])
3044 return -EINVAL;
3045
5727ef1b
JB		 3046 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3047 return -EINVAL;
3048
3049 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3050 return -EINVAL;
3051
0e956c13
TLSC		 3052 if (!info->attrs[NL80211_ATTR_STA_AID])
3053 return -EINVAL;
3054
5727ef1b
JB		 3055 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3056 params.supported_rates =
3057 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3058 params.supported_rates_len =
3059 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3060 params.listen_interval =
3061 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3062
0e956c13
TLSC		 3063 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3064 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3065 return -EINVAL;
51b50fbe 3066
36aedc90
JM		 3067 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3068 params.ht_capa =
3069 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3070
96b78dff
JC		 3071 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3072 params.plink_action =
3073 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3074
bdd90d5e
JB		 3075 if (!rdev->ops->add_station)
3076 return -EOPNOTSUPP;
3077
bdd3ae3d 3078 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3079 return -EINVAL;
3080
bdd90d5e
JB		 3081 switch (dev->ieee80211_ptr->iftype) {
3082 case NL80211_IFTYPE_AP:
3083 case NL80211_IFTYPE_AP_VLAN:
3084 case NL80211_IFTYPE_P2P_GO:
3085 /* parse WME attributes if sta is WME capable */
3086 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3087 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3088 info->attrs[NL80211_ATTR_STA_WME]) {
3089 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3090 struct nlattr *nla;
3091
3092 nla = info->attrs[NL80211_ATTR_STA_WME];
3093 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3094 nl80211_sta_wme_policy);
3095 if (err)
3096 return err;
3097
3098 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3099 params.uapsd_queues =
3100 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3101 if (params.uapsd_queues &
3102 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3103 return -EINVAL;
c75786c9 3104
bdd90d5e
JB		 3105 if (tb[NL80211_STA_WME_MAX_SP])
3106 params.max_sp =
3107 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 3108
bdd90d5e
JB		 3109 if (params.max_sp &
3110 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3111 return -EINVAL;
4319e193 3112
bdd90d5e
JB		 3113 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3114 }
3115 /* TDLS peers cannot be added */
3116 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 3117 return -EINVAL;
bdd90d5e
JB		 3118 /* but don't bother the driver with it */
3119 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 3120
bdd90d5e
JB		 3121 /* must be last in here for error handling */
3122 params.vlan = get_vlan(info, rdev);
3123 if (IS_ERR(params.vlan))
3124 return PTR_ERR(params.vlan);
3125 break;
3126 case NL80211_IFTYPE_MESH_POINT:
3127 /* TDLS peers cannot be added */
3128 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3129 return -EINVAL;
3130 break;
3131 case NL80211_IFTYPE_STATION:
3132 /* Only TDLS peers can be added */
3133 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3134 return -EINVAL;
3135 /* Can only add if TDLS ... */
3136 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3137 return -EOPNOTSUPP;
3138 /* ... with external setup is supported */
3139 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3140 return -EOPNOTSUPP;
3141 break;
3142 default:
3143 return -EOPNOTSUPP;
c75786c9
EP		 3144 }
3145
bdd90d5e 3146 /* be aware of params.vlan when changing code here */
5727ef1b 3147
79c97e97 3148 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 3149
5727ef1b
JB		 3150 if (params.vlan)
3151 dev_put(params.vlan);
5727ef1b
JB		 3152 return err;
3153}
3154
3155static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3156{
4c476991
JB		 3157 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3158 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3159 u8 *mac_addr = NULL;
3160
3161 if (info->attrs[NL80211_ATTR_MAC])
3162 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3163
e80cf853 3164 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 3165 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 3166 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 3167 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3168 return -EINVAL;
5727ef1b 3169
4c476991
JB		 3170 if (!rdev->ops->del_station)
3171 return -EOPNOTSUPP;
3b85875a 3172
4c476991 3173 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 3174}
3175
2ec600d6
LCC		 3176static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
3177 int flags, struct net_device *dev,
3178 u8 *dst, u8 *next_hop,
3179 struct mpath_info *pinfo)
3180{
3181 void *hdr;
3182 struct nlattr *pinfoattr;
3183
3184 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
3185 if (!hdr)
3186 return -1;
3187
9360ffd1
DM		 3188 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3189 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3190 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3191 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3192 goto nla_put_failure;
f5ea9120 3193
2ec600d6
LCC		 3194 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3195 if (!pinfoattr)
3196 goto nla_put_failure;
9360ffd1
DM		 3197 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3198 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3199 pinfo->frame_qlen))
3200 goto nla_put_failure;
3201 if (((pinfo->filled & MPATH_INFO_SN) &&
3202 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3203 ((pinfo->filled & MPATH_INFO_METRIC) &&
3204 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3205 pinfo->metric)) ||
3206 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3207 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3208 pinfo->exptime)) ||
3209 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3210 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3211 pinfo->flags)) ||
3212 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3213 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3214 pinfo->discovery_timeout)) ||
3215 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3216 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3217 pinfo->discovery_retries)))
3218 goto nla_put_failure;
2ec600d6
LCC		 3219
3220 nla_nest_end(msg, pinfoattr);
3221
3222 return genlmsg_end(msg, hdr);
3223
3224 nla_put_failure:
bc3ed28c
TG		 3225 genlmsg_cancel(msg, hdr);
3226 return -EMSGSIZE;
2ec600d6
LCC		 3227}
3228
3229static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 3230 struct netlink_callback *cb)
2ec600d6 3231{
2ec600d6
LCC		 3232 struct mpath_info pinfo;
3233 struct cfg80211_registered_device *dev;
bba95fef 3234 struct net_device *netdev;
2ec600d6
LCC		 3235 u8 dst[ETH_ALEN];
3236 u8 next_hop[ETH_ALEN];
bba95fef 3237 int path_idx = cb->args[1];
2ec600d6 3238 int err;
2ec600d6 3239
67748893
JB		 3240 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3241 if (err)
3242 return err;
bba95fef
JB		 3243
3244 if (!dev->ops->dump_mpath) {
eec60b03 3245 err = -EOPNOTSUPP;
bba95fef
JB		 3246 goto out_err;
3247 }
3248
eec60b03
JM		 3249 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3250 err = -EOPNOTSUPP;
0448b5fc 3251 goto out_err;
eec60b03
JM		 3252 }
3253
bba95fef
JB		 3254 while (1) {
3255 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3256 dst, next_hop, &pinfo);
3257 if (err == -ENOENT)
2ec600d6 3258 break;
bba95fef 3259 if (err)
3b85875a 3260 goto out_err;
2ec600d6 3261
bba95fef
JB		 3262 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3263 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3264 netdev, dst, next_hop,
3265 &pinfo) < 0)
3266 goto out;
2ec600d6 3267
bba95fef 3268 path_idx++;
2ec600d6 3269 }
2ec600d6 3270
2ec600d6 3271
bba95fef
JB		 3272 out:
3273 cb->args[1] = path_idx;
3274 err = skb->len;
bba95fef 3275 out_err:
67748893 3276 nl80211_finish_netdev_dump(dev);
bba95fef 3277 return err;
2ec600d6
LCC		 3278}
3279
3280static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3281{
4c476991 3282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3283 int err;
4c476991 3284 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3285 struct mpath_info pinfo;
3286 struct sk_buff *msg;
3287 u8 *dst = NULL;
3288 u8 next_hop[ETH_ALEN];
3289
3290 memset(&pinfo, 0, sizeof(pinfo));
3291
3292 if (!info->attrs[NL80211_ATTR_MAC])
3293 return -EINVAL;
3294
3295 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3296
4c476991
JB		 3297 if (!rdev->ops->get_mpath)
3298 return -EOPNOTSUPP;
2ec600d6 3299
4c476991
JB		 3300 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3301 return -EOPNOTSUPP;
eec60b03 3302
79c97e97 3303 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 3304 if (err)
4c476991 3305 return err;
2ec600d6 3306
fd2120ca 3307 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3308 if (!msg)
4c476991 3309 return -ENOMEM;
2ec600d6
LCC		 3310
3311 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 3312 dev, dst, next_hop, &pinfo) < 0) {
3313 nlmsg_free(msg);
3314 return -ENOBUFS;
3315 }
3b85875a 3316
4c476991 3317 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3318}
3319
3320static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3321{
4c476991
JB		 3322 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3323 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3324 u8 *dst = NULL;
3325 u8 *next_hop = NULL;
3326
3327 if (!info->attrs[NL80211_ATTR_MAC])
3328 return -EINVAL;
3329
3330 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3331 return -EINVAL;
3332
3333 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3334 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3335
4c476991
JB		 3336 if (!rdev->ops->change_mpath)
3337 return -EOPNOTSUPP;
35a8efe1 3338
4c476991
JB		 3339 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3340 return -EOPNOTSUPP;
2ec600d6 3341
4c476991 3342 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 3343}
4c476991 3344
2ec600d6
LCC		 3345static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3346{
4c476991
JB		 3347 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3348 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3349 u8 *dst = NULL;
3350 u8 *next_hop = NULL;
3351
3352 if (!info->attrs[NL80211_ATTR_MAC])
3353 return -EINVAL;
3354
3355 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3356 return -EINVAL;
3357
3358 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3359 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3360
4c476991
JB		 3361 if (!rdev->ops->add_mpath)
3362 return -EOPNOTSUPP;
35a8efe1 3363
4c476991
JB		 3364 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3365 return -EOPNOTSUPP;
2ec600d6 3366
4c476991 3367 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 3368}
3369
3370static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3371{
4c476991
JB		 3372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3373 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3374 u8 *dst = NULL;
3375
3376 if (info->attrs[NL80211_ATTR_MAC])
3377 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3378
4c476991
JB		 3379 if (!rdev->ops->del_mpath)
3380 return -EOPNOTSUPP;
3b85875a 3381
4c476991 3382 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 3383}
3384
9f1ba906
JM		 3385static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3386{
4c476991
JB		 3387 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3388 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3389 struct bss_parameters params;
3390
3391 memset(&params, 0, sizeof(params));
3392 /* default to not changing parameters */
3393 params.use_cts_prot = -1;
3394 params.use_short_preamble = -1;
3395 params.use_short_slot_time = -1;
fd8aaaf3 3396 params.ap_isolate = -1;
50b12f59 3397 params.ht_opmode = -1;
9f1ba906
JM		 3398
3399 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3400 params.use_cts_prot =
3401 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3402 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3403 params.use_short_preamble =
3404 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3405 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3406 params.use_short_slot_time =
3407 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3408 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3409 params.basic_rates =
3410 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3411 params.basic_rates_len =
3412 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3413 }
fd8aaaf3
FF		 3414 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3415 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3416 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3417 params.ht_opmode =
3418 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3419
4c476991
JB		 3420 if (!rdev->ops->change_bss)
3421 return -EOPNOTSUPP;
9f1ba906 3422
074ac8df 3423 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3424 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3425 return -EOPNOTSUPP;
3b85875a 3426
4c476991 3427 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 3428}
3429
b54452b0 3430static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3431 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3432 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3433 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3434 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3435 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3436 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3437};
3438
3439static int parse_reg_rule(struct nlattr *tb[],
3440 struct ieee80211_reg_rule *reg_rule)
3441{
3442 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3443 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3444
3445 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3446 return -EINVAL;
3447 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3448 return -EINVAL;
3449 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3450 return -EINVAL;
3451 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3452 return -EINVAL;
3453 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3454 return -EINVAL;
3455
3456 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3457
3458 freq_range->start_freq_khz =
3459 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3460 freq_range->end_freq_khz =
3461 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3462 freq_range->max_bandwidth_khz =
3463 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3464
3465 power_rule->max_eirp =
3466 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3467
3468 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3469 power_rule->max_antenna_gain =
3470 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3471
3472 return 0;
3473}
3474
3475static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3476{
3477 int r;
3478 char *data = NULL;
3479
80778f18
LR		 3480 /*
3481 * You should only get this when cfg80211 hasn't yet initialized
3482 * completely when built-in to the kernel right between the time
3483 * window between nl80211_init() and regulatory_init(), if that is
3484 * even possible.
3485 */
3486 mutex_lock(&cfg80211_mutex);
3487 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3488 mutex_unlock(&cfg80211_mutex);
3489 return -EINPROGRESS;
80778f18 3490 }
fe33eb39 3491 mutex_unlock(&cfg80211_mutex);
80778f18 3492
fe33eb39
LR		 3493 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3494 return -EINVAL;
b2e1b302
LR		 3495
3496 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3497
fe33eb39
LR		 3498 r = regulatory_hint_user(data);
3499
b2e1b302
LR		 3500 return r;
3501}
3502
24bdd9f4 3503static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3504 struct genl_info *info)
93da9cc1 3505{
4c476991 3506 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3507 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3508 struct wireless_dev *wdev = dev->ieee80211_ptr;
3509 struct mesh_config cur_params;
3510 int err = 0;
93da9cc1 3511 void *hdr;
3512 struct nlattr *pinfoattr;
3513 struct sk_buff *msg;
3514
29cbe68c
JB		 3515 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3516 return -EOPNOTSUPP;
3517
24bdd9f4 3518 if (!rdev->ops->get_mesh_config)
4c476991 3519 return -EOPNOTSUPP;
f3f92586 3520
29cbe68c
JB		 3521 wdev_lock(wdev);
3522 /* If not connected, get default parameters */
3523 if (!wdev->mesh_id_len)
3524 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3525 else
24bdd9f4 3526 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3527 &cur_params);
3528 wdev_unlock(wdev);
3529
93da9cc1 3530 if (err)
4c476991 3531 return err;
93da9cc1 3532
3533 /* Draw up a netlink message to send back */
fd2120ca 3534 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3535 if (!msg)
3536 return -ENOMEM;
93da9cc1 3537 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 3538 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3539 if (!hdr)
efe1cf0c 3540 goto out;
24bdd9f4 3541 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3542 if (!pinfoattr)
3543 goto nla_put_failure;
9360ffd1
DM		 3544 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3545 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3546 cur_params.dot11MeshRetryTimeout) ||
3547 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3548 cur_params.dot11MeshConfirmTimeout) ||
3549 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3550 cur_params.dot11MeshHoldingTimeout) ||
3551 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3552 cur_params.dot11MeshMaxPeerLinks) ||
3553 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3554 cur_params.dot11MeshMaxRetries) ||
3555 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3556 cur_params.dot11MeshTTL) ||
3557 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3558 cur_params.element_ttl) ||
3559 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3560 cur_params.auto_open_plinks) ||
7eab0f64
JL		 3561 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3562 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 3563 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3564 cur_params.dot11MeshHWMPmaxPREQretries) ||
3565 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3566 cur_params.path_refresh_time) ||
3567 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3568 cur_params.min_discovery_timeout) ||
3569 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3570 cur_params.dot11MeshHWMPactivePathTimeout) ||
3571 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3572 cur_params.dot11MeshHWMPpreqMinInterval) ||
3573 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3574 cur_params.dot11MeshHWMPperrMinInterval) ||
3575 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3576 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3577 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3578 cur_params.dot11MeshHWMPRootMode) ||
3579 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3580 cur_params.dot11MeshHWMPRannInterval) ||
3581 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3582 cur_params.dot11MeshGateAnnouncementProtocol) ||
3583 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3584 cur_params.dot11MeshForwarding) ||
3585 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 3586 cur_params.rssi_threshold) ||
3587 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3588 cur_params.ht_opmode) ||
3589 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3590 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3591 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3592 cur_params.dot11MeshHWMProotInterval) ||
3593 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3594 cur_params.dot11MeshHWMPconfirmationInterval))
9360ffd1 3595 goto nla_put_failure;
93da9cc1 3596 nla_nest_end(msg, pinfoattr);
3597 genlmsg_end(msg, hdr);
4c476991 3598 return genlmsg_reply(msg, info);
93da9cc1 3599
3b85875a 3600 nla_put_failure:
93da9cc1 3601 genlmsg_cancel(msg, hdr);
efe1cf0c 3602 out:
d080e275 3603 nlmsg_free(msg);
4c476991 3604 return -ENOBUFS;
93da9cc1 3605}
3606
b54452b0 3607static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3608 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3609 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3610 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3611 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3612 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3613 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3614 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3615 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 3616 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 3617 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3618 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3619 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3620 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3621 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3622 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3623 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3624 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3625 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3626 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 3627 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 3628 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3629 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 3630 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3631 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 3632 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3633};
3634
c80d545d
JC		 3635static const struct nla_policy
3636 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 3637 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 3638 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3639 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3640 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3641 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 3642 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3643 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3644};
3645
24bdd9f4 3646static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3647 struct mesh_config *cfg,
3648 u32 *mask_out)
93da9cc1 3649{
93da9cc1 3650 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3651 u32 mask = 0;
93da9cc1 3652
bd90fdcc
JB		 3653#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3654do {\
3655 if (table[attr_num]) {\
3656 cfg->param = nla_fn(table[attr_num]); \
3657 mask |= (1 << (attr_num - 1)); \
3658 } \
3659} while (0);\
3660
3661
24bdd9f4 3662 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3663 return -EINVAL;
3664 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3665 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3666 nl80211_meshconf_params_policy))
93da9cc1 3667 return -EINVAL;
3668
93da9cc1 3669 /* This makes sure that there aren't more than 32 mesh config
3670 * parameters (otherwise our bitfield scheme would not work.) */
3671 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3672
3673 /* Fill in the params struct */
93da9cc1 3674 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
a4f606ea
CYY		 3675 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3676 nla_get_u16);
93da9cc1 3677 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
a4f606ea
CYY		 3678 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3679 nla_get_u16);
93da9cc1 3680 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
a4f606ea
CYY		 3681 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3682 nla_get_u16);
93da9cc1 3683 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
a4f606ea
CYY		 3684 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3685 nla_get_u16);
93da9cc1 3686 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
a4f606ea
CYY		 3687 mask, NL80211_MESHCONF_MAX_RETRIES,
3688 nla_get_u8);
93da9cc1 3689 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
a4f606ea 3690 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21 3691 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
a4f606ea
CYY		 3692 mask, NL80211_MESHCONF_ELEMENT_TTL,
3693 nla_get_u8);
93da9cc1 3694 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
a4f606ea
CYY		 3695 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3696 nla_get_u8);
3697 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3698 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3699 nla_get_u32);
93da9cc1 3700 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
a4f606ea
CYY		 3701 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3702 nla_get_u8);
93da9cc1 3703 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
a4f606ea
CYY		 3704 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3705 nla_get_u32);
93da9cc1 3706 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
a4f606ea
CYY		 3707 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3708 nla_get_u16);
3709 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3710 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3711 nla_get_u32);
93da9cc1 3712 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
a4f606ea
CYY		 3713 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3714 nla_get_u16);
dca7e943 3715 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
a4f606ea
CYY		 3716 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3717 nla_get_u16);
0507e159 3718 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 3719 dot11MeshHWMPnetDiameterTraversalTime, mask,
3720 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3721 nla_get_u16);
3722 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3723 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3724 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3725 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3726 nla_get_u16);
16dd7267 3727 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 3728 dot11MeshGateAnnouncementProtocol, mask,
3729 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3730 nla_get_u8);
94f90656 3731 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
a4f606ea
CYY		 3732 mask, NL80211_MESHCONF_FORWARDING,
3733 nla_get_u8);
55335137 3734 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
a4f606ea
CYY		 3735 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3736 nla_get_u32);
70c33eaa 3737 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
a4f606ea 3738 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3739 nla_get_u16);
3740 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3741 mask,
3742 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3743 nla_get_u32);
3744 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3745 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3746 nla_get_u16);
3747 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3748 dot11MeshHWMPconfirmationInterval, mask,
3749 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 3750 nla_get_u16);
bd90fdcc
JB		 3751 if (mask_out)
3752 *mask_out = mask;
c80d545d 3753
bd90fdcc
JB		 3754 return 0;
3755
3756#undef FILL_IN_MESH_PARAM_IF_SET
3757}
3758
c80d545d
JC		 3759static int nl80211_parse_mesh_setup(struct genl_info *info,
3760 struct mesh_setup *setup)
3761{
3762 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3763
3764 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3765 return -EINVAL;
3766 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3767 info->attrs[NL80211_ATTR_MESH_SETUP],
3768 nl80211_mesh_setup_params_policy))
3769 return -EINVAL;
3770
d299a1f2
JC		 3771 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3772 setup->sync_method =
3773 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3774 IEEE80211_SYNC_METHOD_VENDOR :
3775 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3776
c80d545d
JC		 3777 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3778 setup->path_sel_proto =
3779 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3780 IEEE80211_PATH_PROTOCOL_VENDOR :
3781 IEEE80211_PATH_PROTOCOL_HWMP;
3782
3783 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3784 setup->path_metric =
3785 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3786 IEEE80211_PATH_METRIC_VENDOR :
3787 IEEE80211_PATH_METRIC_AIRTIME;
3788
581a8b0f
JC		 3789
3790 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3791 struct nlattr *ieattr =
581a8b0f 3792 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3793 if (!is_valid_ie_attr(ieattr))
3794 return -EINVAL;
581a8b0f
JC		 3795 setup->ie = nla_data(ieattr);
3796 setup->ie_len = nla_len(ieattr);
c80d545d 3797 }
b130e5ce
JC		 3798 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3799 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3800
3801 return 0;
3802}
3803
24bdd9f4 3804static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3805 struct genl_info *info)
bd90fdcc
JB		 3806{
3807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3808 struct net_device *dev = info->user_ptr[1];
29cbe68c 3809 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3810 struct mesh_config cfg;
3811 u32 mask;
3812 int err;
3813
29cbe68c
JB		 3814 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3815 return -EOPNOTSUPP;
3816
24bdd9f4 3817 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3818 return -EOPNOTSUPP;
3819
24bdd9f4 3820 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3821 if (err)
3822 return err;
3823
29cbe68c
JB		 3824 wdev_lock(wdev);
3825 if (!wdev->mesh_id_len)
3826 err = -ENOLINK;
3827
3828 if (!err)
24bdd9f4 3829 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3830 mask, &cfg);
3831
3832 wdev_unlock(wdev);
3833
3834 return err;
93da9cc1 3835}
3836
f130347c
LR		 3837static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3838{
3839 struct sk_buff *msg;
3840 void *hdr = NULL;
3841 struct nlattr *nl_reg_rules;
3842 unsigned int i;
3843 int err = -EINVAL;
3844
a1794390 3845 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3846
3847 if (!cfg80211_regdomain)
3848 goto out;
3849
fd2120ca 3850 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3851 if (!msg) {
3852 err = -ENOBUFS;
3853 goto out;
3854 }
3855
3856 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3857 NL80211_CMD_GET_REG);
3858 if (!hdr)
efe1cf0c 3859 goto put_failure;
f130347c 3860
9360ffd1
DM		 3861 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
3862 cfg80211_regdomain->alpha2) ||
3863 (cfg80211_regdomain->dfs_region &&
3864 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
3865 cfg80211_regdomain->dfs_region)))
3866 goto nla_put_failure;
f130347c
LR		 3867
3868 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3869 if (!nl_reg_rules)
3870 goto nla_put_failure;
3871
3872 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3873 struct nlattr *nl_reg_rule;
3874 const struct ieee80211_reg_rule *reg_rule;
3875 const struct ieee80211_freq_range *freq_range;
3876 const struct ieee80211_power_rule *power_rule;
3877
3878 reg_rule = &cfg80211_regdomain->reg_rules[i];
3879 freq_range = &reg_rule->freq_range;
3880 power_rule = &reg_rule->power_rule;
3881
3882 nl_reg_rule = nla_nest_start(msg, i);
3883 if (!nl_reg_rule)
3884 goto nla_put_failure;
3885
9360ffd1
DM		 3886 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3887 reg_rule->flags) ||
3888 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
3889 freq_range->start_freq_khz) ||
3890 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
3891 freq_range->end_freq_khz) ||
3892 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3893 freq_range->max_bandwidth_khz) ||
3894 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3895 power_rule->max_antenna_gain) ||
3896 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3897 power_rule->max_eirp))
3898 goto nla_put_failure;
f130347c
LR		 3899
3900 nla_nest_end(msg, nl_reg_rule);
3901 }
3902
3903 nla_nest_end(msg, nl_reg_rules);
3904
3905 genlmsg_end(msg, hdr);
134e6375 3906 err = genlmsg_reply(msg, info);
f130347c
LR		 3907 goto out;
3908
3909nla_put_failure:
3910 genlmsg_cancel(msg, hdr);
efe1cf0c 3911put_failure:
d080e275 3912 nlmsg_free(msg);
f130347c
LR		 3913 err = -EMSGSIZE;
3914out:
a1794390 3915 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3916 return err;
3917}
3918
b2e1b302
LR		 3919static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3920{
3921 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3922 struct nlattr *nl_reg_rule;
3923 char *alpha2 = NULL;
3924 int rem_reg_rules = 0, r = 0;
3925 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 3926 u8 dfs_region = 0;
b2e1b302
LR		 3927 struct ieee80211_regdomain *rd = NULL;
3928
3929 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3930 return -EINVAL;
3931
3932 if (!info->attrs[NL80211_ATTR_REG_RULES])
3933 return -EINVAL;
3934
3935 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3936
8b60b078
LR		 3937 if (info->attrs[NL80211_ATTR_DFS_REGION])
3938 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3939
b2e1b302
LR		 3940 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3941 rem_reg_rules) {
3942 num_rules++;
3943 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3944 return -EINVAL;
b2e1b302
LR		 3945 }
3946
61405e97
LR		 3947 mutex_lock(&cfg80211_mutex);
3948
d0e18f83
LR		 3949 if (!reg_is_valid_request(alpha2)) {
3950 r = -EINVAL;
3951 goto bad_reg;
3952 }
b2e1b302
LR		 3953
3954 size_of_regd = sizeof(struct ieee80211_regdomain) +
3955 (num_rules * sizeof(struct ieee80211_reg_rule));
3956
3957 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3958 if (!rd) {
3959 r = -ENOMEM;
3960 goto bad_reg;
3961 }
b2e1b302
LR		 3962
3963 rd->n_reg_rules = num_rules;
3964 rd->alpha2[0] = alpha2[0];
3965 rd->alpha2[1] = alpha2[1];
3966
8b60b078
LR		 3967 /*
3968 * Disable DFS master mode if the DFS region was
3969 * not supported or known on this kernel.
3970 */
3971 if (reg_supported_dfs_region(dfs_region))
3972 rd->dfs_region = dfs_region;
3973
b2e1b302
LR		 3974 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3975 rem_reg_rules) {
3976 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3977 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3978 reg_rule_policy);
3979 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3980 if (r)
3981 goto bad_reg;
3982
3983 rule_idx++;
3984
d0e18f83
LR		 3985 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3986 r = -EINVAL;
b2e1b302 3987 goto bad_reg;
d0e18f83 3988 }
b2e1b302
LR		 3989 }
3990
3991 BUG_ON(rule_idx != num_rules);
3992
b2e1b302 3993 r = set_regdom(rd);
61405e97 3994
a1794390 3995 mutex_unlock(&cfg80211_mutex);
d0e18f83 3996
b2e1b302
LR		 3997 return r;
3998
d2372b31 3999 bad_reg:
61405e97 4000 mutex_unlock(&cfg80211_mutex);
b2e1b302 4001 kfree(rd);
d0e18f83 4002 return r;
b2e1b302
LR		 4003}
4004
83f5e2cf
JB		 4005static int validate_scan_freqs(struct nlattr *freqs)
4006{
4007 struct nlattr *attr1, *attr2;
4008 int n_channels = 0, tmp1, tmp2;
4009
4010 nla_for_each_nested(attr1, freqs, tmp1) {
4011 n_channels++;
4012 /*
4013 * Some hardware has a limited channel list for
4014 * scanning, and it is pretty much nonsensical
4015 * to scan for a channel twice, so disallow that
4016 * and don't require drivers to check that the
4017 * channel list they get isn't longer than what
4018 * they can scan, as long as they can scan all
4019 * the channels they registered at once.
4020 */
4021 nla_for_each_nested(attr2, freqs, tmp2)
4022 if (attr1 != attr2 &&
4023 nla_get_u32(attr1) == nla_get_u32(attr2))
4024 return 0;
4025 }
4026
4027 return n_channels;
4028}
4029
2a519311
JB		 4030static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4031{
4c476991
JB		 4032 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4033 struct net_device *dev = info->user_ptr[1];
2a519311 4034 struct cfg80211_scan_request *request;
2a519311
JB		 4035 struct nlattr *attr;
4036 struct wiphy *wiphy;
83f5e2cf 4037 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 4038 size_t ie_len;
2a519311 4039
f4a11bb0
JB		 4040 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4041 return -EINVAL;
4042
79c97e97 4043 wiphy = &rdev->wiphy;
2a519311 4044
4c476991
JB		 4045 if (!rdev->ops->scan)
4046 return -EOPNOTSUPP;
2a519311 4047
4c476991
JB		 4048 if (rdev->scan_req)
4049 return -EBUSY;
2a519311
JB		 4050
4051 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 4052 n_channels = validate_scan_freqs(
4053 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 4054 if (!n_channels)
4055 return -EINVAL;
2a519311 4056 } else {
34850ab2 4057 enum ieee80211_band band;
83f5e2cf
JB		 4058 n_channels = 0;
4059
2a519311
JB		 4060 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4061 if (wiphy->bands[band])
4062 n_channels += wiphy->bands[band]->n_channels;
4063 }
4064
4065 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4066 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4067 n_ssids++;
4068
4c476991
JB		 4069 if (n_ssids > wiphy->max_scan_ssids)
4070 return -EINVAL;
2a519311 4071
70692ad2
JM		 4072 if (info->attrs[NL80211_ATTR_IE])
4073 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4074 else
4075 ie_len = 0;
4076
4c476991
JB		 4077 if (ie_len > wiphy->max_scan_ie_len)
4078 return -EINVAL;
18a83659 4079
2a519311 4080 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 4081 + sizeof(*request->ssids) * n_ssids
4082 + sizeof(*request->channels) * n_channels
70692ad2 4083 + ie_len, GFP_KERNEL);
4c476991
JB		 4084 if (!request)
4085 return -ENOMEM;
2a519311 4086
2a519311 4087 if (n_ssids)
5ba63533 4088 request->ssids = (void *)&request->channels[n_channels];
2a519311 4089 request->n_ssids = n_ssids;
70692ad2
JM		 4090 if (ie_len) {
4091 if (request->ssids)
4092 request->ie = (void *)(request->ssids + n_ssids);
4093 else
4094 request->ie = (void *)(request->channels + n_channels);
4095 }
2a519311 4096
584991dc 4097 i = 0;
2a519311
JB		 4098 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4099 /* user specified, bail out if channel not found */
2a519311 4100 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 4101 struct ieee80211_channel *chan;
4102
4103 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4104
4105 if (!chan) {
2a519311
JB		 4106 err = -EINVAL;
4107 goto out_free;
4108 }
584991dc
JB		 4109
4110 /* ignore disabled channels */
4111 if (chan->flags & IEEE80211_CHAN_DISABLED)
4112 continue;
4113
4114 request->channels[i] = chan;
2a519311
JB		 4115 i++;
4116 }
4117 } else {
34850ab2
JB		 4118 enum ieee80211_band band;
4119
2a519311 4120 /* all channels */
2a519311
JB		 4121 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4122 int j;
4123 if (!wiphy->bands[band])
4124 continue;
4125 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 4126 struct ieee80211_channel *chan;
4127
4128 chan = &wiphy->bands[band]->channels[j];
4129
4130 if (chan->flags & IEEE80211_CHAN_DISABLED)
4131 continue;
4132
4133 request->channels[i] = chan;
2a519311
JB		 4134 i++;
4135 }
4136 }
4137 }
4138
584991dc
JB		 4139 if (!i) {
4140 err = -EINVAL;
4141 goto out_free;
4142 }
4143
4144 request->n_channels = i;
4145
2a519311
JB		 4146 i = 0;
4147 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4148 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 4149 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 4150 err = -EINVAL;
4151 goto out_free;
4152 }
57a27e1d 4153 request->ssids[i].ssid_len = nla_len(attr);
2a519311 4154 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 4155 i++;
4156 }
4157 }
4158
70692ad2
JM		 4159 if (info->attrs[NL80211_ATTR_IE]) {
4160 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 4161 memcpy((void *)request->ie,
4162 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 4163 request->ie_len);
4164 }
4165
34850ab2 4166 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 4167 if (wiphy->bands[i])
4168 request->rates[i] =
4169 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 4170
4171 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4172 nla_for_each_nested(attr,
4173 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4174 tmp) {
4175 enum ieee80211_band band = nla_type(attr);
4176
84404623 4177 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 4178 err = -EINVAL;
4179 goto out_free;
4180 }
4181 err = ieee80211_get_ratemask(wiphy->bands[band],
4182 nla_data(attr),
4183 nla_len(attr),
4184 &request->rates[band]);
4185 if (err)
4186 goto out_free;
4187 }
4188 }
4189
e9f935e3
RM		 4190 request->no_cck =
4191 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4192
463d0183 4193 request->dev = dev;
79c97e97 4194 request->wiphy = &rdev->wiphy;
2a519311 4195
79c97e97
JB		 4196 rdev->scan_req = request;
4197 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 4198
463d0183 4199 if (!err) {
79c97e97 4200 nl80211_send_scan_start(rdev, dev);
463d0183 4201 dev_hold(dev);
4c476991 4202 } else {
2a519311 4203 out_free:
79c97e97 4204 rdev->scan_req = NULL;
2a519311
JB		 4205 kfree(request);
4206 }
3b85875a 4207
2a519311
JB		 4208 return err;
4209}
4210
807f8a8c
LC		 4211static int nl80211_start_sched_scan(struct sk_buff *skb,
4212 struct genl_info *info)
4213{
4214 struct cfg80211_sched_scan_request *request;
4215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4216 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 4217 struct nlattr *attr;
4218 struct wiphy *wiphy;
a1f1c21c 4219 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 4220 u32 interval;
807f8a8c
LC		 4221 enum ieee80211_band band;
4222 size_t ie_len;
a1f1c21c 4223 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 4224
4225 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4226 !rdev->ops->sched_scan_start)
4227 return -EOPNOTSUPP;
4228
4229 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4230 return -EINVAL;
4231
bbe6ad6d
LC		 4232 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4233 return -EINVAL;
4234
4235 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4236 if (interval == 0)
4237 return -EINVAL;
4238
807f8a8c
LC		 4239 wiphy = &rdev->wiphy;
4240
4241 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4242 n_channels = validate_scan_freqs(
4243 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4244 if (!n_channels)
4245 return -EINVAL;
4246 } else {
4247 n_channels = 0;
4248
4249 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4250 if (wiphy->bands[band])
4251 n_channels += wiphy->bands[band]->n_channels;
4252 }
4253
4254 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4255 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4256 tmp)
4257 n_ssids++;
4258
93b6aa69 4259 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 4260 return -EINVAL;
4261
a1f1c21c
LC		 4262 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4263 nla_for_each_nested(attr,
4264 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4265 tmp)
4266 n_match_sets++;
4267
4268 if (n_match_sets > wiphy->max_match_sets)
4269 return -EINVAL;
4270
807f8a8c
LC		 4271 if (info->attrs[NL80211_ATTR_IE])
4272 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4273 else
4274 ie_len = 0;
4275
5a865bad 4276 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 4277 return -EINVAL;
4278
c10841ca
LC		 4279 mutex_lock(&rdev->sched_scan_mtx);
4280
4281 if (rdev->sched_scan_req) {
4282 err = -EINPROGRESS;
4283 goto out;
4284 }
4285
807f8a8c 4286 request = kzalloc(sizeof(*request)
a2cd43c5 4287 + sizeof(*request->ssids) * n_ssids
a1f1c21c 4288 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 4289 + sizeof(*request->channels) * n_channels
807f8a8c 4290 + ie_len, GFP_KERNEL);
c10841ca
LC		 4291 if (!request) {
4292 err = -ENOMEM;
4293 goto out;
4294 }
807f8a8c
LC		 4295
4296 if (n_ssids)
4297 request->ssids = (void *)&request->channels[n_channels];
4298 request->n_ssids = n_ssids;
4299 if (ie_len) {
4300 if (request->ssids)
4301 request->ie = (void *)(request->ssids + n_ssids);
4302 else
4303 request->ie = (void *)(request->channels + n_channels);
4304 }
4305
a1f1c21c
LC		 4306 if (n_match_sets) {
4307 if (request->ie)
4308 request->match_sets = (void *)(request->ie + ie_len);
4309 else if (request->ssids)
4310 request->match_sets =
4311 (void *)(request->ssids + n_ssids);
4312 else
4313 request->match_sets =
4314 (void *)(request->channels + n_channels);
4315 }
4316 request->n_match_sets = n_match_sets;
4317
807f8a8c
LC		 4318 i = 0;
4319 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4320 /* user specified, bail out if channel not found */
4321 nla_for_each_nested(attr,
4322 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4323 tmp) {
4324 struct ieee80211_channel *chan;
4325
4326 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4327
4328 if (!chan) {
4329 err = -EINVAL;
4330 goto out_free;
4331 }
4332
4333 /* ignore disabled channels */
4334 if (chan->flags & IEEE80211_CHAN_DISABLED)
4335 continue;
4336
4337 request->channels[i] = chan;
4338 i++;
4339 }
4340 } else {
4341 /* all channels */
4342 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4343 int j;
4344 if (!wiphy->bands[band])
4345 continue;
4346 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4347 struct ieee80211_channel *chan;
4348
4349 chan = &wiphy->bands[band]->channels[j];
4350
4351 if (chan->flags & IEEE80211_CHAN_DISABLED)
4352 continue;
4353
4354 request->channels[i] = chan;
4355 i++;
4356 }
4357 }
4358 }
4359
4360 if (!i) {
4361 err = -EINVAL;
4362 goto out_free;
4363 }
4364
4365 request->n_channels = i;
4366
4367 i = 0;
4368 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4369 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4370 tmp) {
57a27e1d 4371 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 4372 err = -EINVAL;
4373 goto out_free;
4374 }
57a27e1d 4375 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4376 memcpy(request->ssids[i].ssid, nla_data(attr),
4377 nla_len(attr));
807f8a8c
LC		 4378 i++;
4379 }
4380 }
4381
a1f1c21c
LC		 4382 i = 0;
4383 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4384 nla_for_each_nested(attr,
4385 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4386 tmp) {
88e920b4 4387 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 4388
4389 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4390 nla_data(attr), nla_len(attr),
4391 nl80211_match_policy);
4a4ab0d7 4392 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 4393 if (ssid) {
4394 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4395 err = -EINVAL;
4396 goto out_free;
4397 }
4398 memcpy(request->match_sets[i].ssid.ssid,
4399 nla_data(ssid), nla_len(ssid));
4400 request->match_sets[i].ssid.ssid_len =
4401 nla_len(ssid);
4402 }
88e920b4
TP		 4403 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4404 if (rssi)
4405 request->rssi_thold = nla_get_u32(rssi);
4406 else
4407 request->rssi_thold =
4408 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 4409 i++;
4410 }
4411 }
4412
807f8a8c
LC		 4413 if (info->attrs[NL80211_ATTR_IE]) {
4414 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4415 memcpy((void *)request->ie,
4416 nla_data(info->attrs[NL80211_ATTR_IE]),
4417 request->ie_len);
4418 }
4419
4420 request->dev = dev;
4421 request->wiphy = &rdev->wiphy;
bbe6ad6d 4422 request->interval = interval;
807f8a8c
LC		 4423
4424 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4425 if (!err) {
4426 rdev->sched_scan_req = request;
4427 nl80211_send_sched_scan(rdev, dev,
4428 NL80211_CMD_START_SCHED_SCAN);
4429 goto out;
4430 }
4431
4432out_free:
4433 kfree(request);
4434out:
c10841ca 4435 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4436 return err;
4437}
4438
4439static int nl80211_stop_sched_scan(struct sk_buff *skb,
4440 struct genl_info *info)
4441{
4442 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4443 int err;
807f8a8c
LC		 4444
4445 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4446 !rdev->ops->sched_scan_stop)
4447 return -EOPNOTSUPP;
4448
c10841ca
LC		 4449 mutex_lock(&rdev->sched_scan_mtx);
4450 err = __cfg80211_stop_sched_scan(rdev, false);
4451 mutex_unlock(&rdev->sched_scan_mtx);
4452
4453 return err;
807f8a8c
LC		 4454}
4455
9720bb3a
JB		 4456static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4457 u32 seq, int flags,
2a519311 4458 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4459 struct wireless_dev *wdev,
4460 struct cfg80211_internal_bss *intbss)
2a519311 4461{
48ab905d 4462 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 4463 void *hdr;
4464 struct nlattr *bss;
48ab905d
JB		 4465
4466 ASSERT_WDEV_LOCK(wdev);
2a519311 4467
9720bb3a 4468 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
2a519311
JB		 4469 NL80211_CMD_NEW_SCAN_RESULTS);
4470 if (!hdr)
4471 return -1;
4472
9720bb3a
JB		 4473 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4474
9360ffd1
DM		 4475 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4476 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4477 goto nla_put_failure;
2a519311
JB		 4478
4479 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4480 if (!bss)
4481 goto nla_put_failure;
9360ffd1
DM		 4482 if ((!is_zero_ether_addr(res->bssid) &&
4483 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4484 (res->information_elements && res->len_information_elements &&
4485 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4486 res->len_information_elements,
4487 res->information_elements)) ||
4488 (res->beacon_ies && res->len_beacon_ies &&
4489 res->beacon_ies != res->information_elements &&
4490 nla_put(msg, NL80211_BSS_BEACON_IES,
4491 res->len_beacon_ies, res->beacon_ies)))
4492 goto nla_put_failure;
4493 if (res->tsf &&
4494 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4495 goto nla_put_failure;
4496 if (res->beacon_interval &&
4497 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4498 goto nla_put_failure;
4499 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4500 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4501 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4502 jiffies_to_msecs(jiffies - intbss->ts)))
4503 goto nla_put_failure;
2a519311 4504
77965c97 4505 switch (rdev->wiphy.signal_type) {
2a519311 4506 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 4507 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4508 goto nla_put_failure;
2a519311
JB		 4509 break;
4510 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 4511 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4512 goto nla_put_failure;
2a519311
JB		 4513 break;
4514 default:
4515 break;
4516 }
4517
48ab905d 4518 switch (wdev->iftype) {
074ac8df 4519 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 4520 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 4521 if (intbss == wdev->current_bss &&
4522 nla_put_u32(msg, NL80211_BSS_STATUS,
4523 NL80211_BSS_STATUS_ASSOCIATED))
4524 goto nla_put_failure;
48ab905d
JB		 4525 break;
4526 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 4527 if (intbss == wdev->current_bss &&
4528 nla_put_u32(msg, NL80211_BSS_STATUS,
4529 NL80211_BSS_STATUS_IBSS_JOINED))
4530 goto nla_put_failure;
48ab905d
JB		 4531 break;
4532 default:
4533 break;
4534 }
4535
2a519311
JB		 4536 nla_nest_end(msg, bss);
4537
4538 return genlmsg_end(msg, hdr);
4539
4540 nla_put_failure:
4541 genlmsg_cancel(msg, hdr);
4542 return -EMSGSIZE;
4543}
4544
4545static int nl80211_dump_scan(struct sk_buff *skb,
4546 struct netlink_callback *cb)
4547{
48ab905d
JB		 4548 struct cfg80211_registered_device *rdev;
4549 struct net_device *dev;
2a519311 4550 struct cfg80211_internal_bss *scan;
48ab905d 4551 struct wireless_dev *wdev;
2a519311
JB		 4552 int start = cb->args[1], idx = 0;
4553 int err;
4554
67748893
JB		 4555 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4556 if (err)
4557 return err;
2a519311 4558
48ab905d 4559 wdev = dev->ieee80211_ptr;
2a519311 4560
48ab905d
JB		 4561 wdev_lock(wdev);
4562 spin_lock_bh(&rdev->bss_lock);
4563 cfg80211_bss_expire(rdev);
4564
9720bb3a
JB		 4565 cb->seq = rdev->bss_generation;
4566
48ab905d 4567 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4568 if (++idx <= start)
4569 continue;
9720bb3a 4570 if (nl80211_send_bss(skb, cb,
2a519311 4571 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4572 rdev, wdev, scan) < 0) {
2a519311 4573 idx--;
67748893 4574 break;
2a519311
JB		 4575 }
4576 }
4577
48ab905d
JB		 4578 spin_unlock_bh(&rdev->bss_lock);
4579 wdev_unlock(wdev);
2a519311
JB		 4580
4581 cb->args[1] = idx;
67748893 4582 nl80211_finish_netdev_dump(rdev);
2a519311 4583
67748893 4584 return skb->len;
2a519311
JB		 4585}
4586
61fa713c
HS		 4587static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4588 int flags, struct net_device *dev,
4589 struct survey_info *survey)
4590{
4591 void *hdr;
4592 struct nlattr *infoattr;
4593
61fa713c
HS		 4594 hdr = nl80211hdr_put(msg, pid, seq, flags,
4595 NL80211_CMD_NEW_SURVEY_RESULTS);
4596 if (!hdr)
4597 return -ENOMEM;
4598
9360ffd1
DM		 4599 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4600 goto nla_put_failure;
61fa713c
HS		 4601
4602 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4603 if (!infoattr)
4604 goto nla_put_failure;
4605
9360ffd1
DM		 4606 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4607 survey->channel->center_freq))
4608 goto nla_put_failure;
4609
4610 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4611 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4612 goto nla_put_failure;
4613 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4614 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4615 goto nla_put_failure;
4616 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4617 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4618 survey->channel_time))
4619 goto nla_put_failure;
4620 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4621 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4622 survey->channel_time_busy))
4623 goto nla_put_failure;
4624 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4625 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4626 survey->channel_time_ext_busy))
4627 goto nla_put_failure;
4628 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4629 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4630 survey->channel_time_rx))
4631 goto nla_put_failure;
4632 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4633 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4634 survey->channel_time_tx))
4635 goto nla_put_failure;
61fa713c
HS		 4636
4637 nla_nest_end(msg, infoattr);
4638
4639 return genlmsg_end(msg, hdr);
4640
4641 nla_put_failure:
4642 genlmsg_cancel(msg, hdr);
4643 return -EMSGSIZE;
4644}
4645
4646static int nl80211_dump_survey(struct sk_buff *skb,
4647 struct netlink_callback *cb)
4648{
4649 struct survey_info survey;
4650 struct cfg80211_registered_device *dev;
4651 struct net_device *netdev;
61fa713c
HS		 4652 int survey_idx = cb->args[1];
4653 int res;
4654
67748893
JB		 4655 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4656 if (res)
4657 return res;
61fa713c
HS		 4658
4659 if (!dev->ops->dump_survey) {
4660 res = -EOPNOTSUPP;
4661 goto out_err;
4662 }
4663
4664 while (1) {
180cdc79
LR		 4665 struct ieee80211_channel *chan;
4666
61fa713c
HS		 4667 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4668 &survey);
4669 if (res == -ENOENT)
4670 break;
4671 if (res)
4672 goto out_err;
4673
180cdc79
LR		 4674 /* Survey without a channel doesn't make sense */
4675 if (!survey.channel) {
4676 res = -EINVAL;
4677 goto out;
4678 }
4679
4680 chan = ieee80211_get_channel(&dev->wiphy,
4681 survey.channel->center_freq);
4682 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4683 survey_idx++;
4684 continue;
4685 }
4686
61fa713c
HS		 4687 if (nl80211_send_survey(skb,
4688 NETLINK_CB(cb->skb).pid,
4689 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4690 netdev,
4691 &survey) < 0)
4692 goto out;
4693 survey_idx++;
4694 }
4695
4696 out:
4697 cb->args[1] = survey_idx;
4698 res = skb->len;
4699 out_err:
67748893 4700 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4701 return res;
4702}
4703
255e737e
JM		 4704static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4705{
b23aa676
SO		 4706 return auth_type <= NL80211_AUTHTYPE_MAX;
4707}
4708
4709static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4710{
4711 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4712 NL80211_WPA_VERSION_2));
4713}
4714
636a5d36
JM		 4715static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4716{
4c476991
JB		 4717 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4718 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 4719 struct ieee80211_channel *chan;
4720 const u8 *bssid, *ssid, *ie = NULL;
4721 int err, ssid_len, ie_len = 0;
4722 enum nl80211_auth_type auth_type;
fffd0934 4723 struct key_parse key;
d5cdfacb 4724 bool local_state_change;
636a5d36 4725
f4a11bb0
JB		 4726 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4727 return -EINVAL;
4728
4729 if (!info->attrs[NL80211_ATTR_MAC])
4730 return -EINVAL;
4731
1778092e
JM		 4732 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4733 return -EINVAL;
4734
19957bb3
JB		 4735 if (!info->attrs[NL80211_ATTR_SSID])
4736 return -EINVAL;
4737
4738 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4739 return -EINVAL;
4740
fffd0934
JB		 4741 err = nl80211_parse_key(info, &key);
4742 if (err)
4743 return err;
4744
4745 if (key.idx >= 0) {
e31b8213
JB		 4746 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4747 return -EINVAL;
fffd0934
JB		 4748 if (!key.p.key || !key.p.key_len)
4749 return -EINVAL;
4750 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4751 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4752 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4753 key.p.key_len != WLAN_KEY_LEN_WEP104))
4754 return -EINVAL;
4755 if (key.idx > 4)
4756 return -EINVAL;
4757 } else {
4758 key.p.key_len = 0;
4759 key.p.key = NULL;
4760 }
4761
afea0b7a
JB		 4762 if (key.idx >= 0) {
4763 int i;
4764 bool ok = false;
4765 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4766 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4767 ok = true;
4768 break;
4769 }
4770 }
4c476991
JB		 4771 if (!ok)
4772 return -EINVAL;
afea0b7a
JB		 4773 }
4774
4c476991
JB		 4775 if (!rdev->ops->auth)
4776 return -EOPNOTSUPP;
636a5d36 4777
074ac8df 4778 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4779 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4780 return -EOPNOTSUPP;
eec60b03 4781
19957bb3 4782 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4783 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4784 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4785 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4786 return -EINVAL;
636a5d36 4787
19957bb3
JB		 4788 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4789 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4790
4791 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4792 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4793 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4794 }
4795
19957bb3 4796 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4797 if (!nl80211_valid_auth_type(auth_type))
4798 return -EINVAL;
636a5d36 4799
d5cdfacb
JM		 4800 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4801
95de817b
JB		 4802 /*
4803 * Since we no longer track auth state, ignore
4804 * requests to only change local state.
4805 */
4806 if (local_state_change)
4807 return 0;
4808
4c476991
JB		 4809 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4810 ssid, ssid_len, ie, ie_len,
95de817b 4811 key.p.key, key.p.key_len, key.idx);
636a5d36
JM		 4812}
4813
c0692b8f
JB		 4814static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4815 struct genl_info *info,
3dc27d25
JB		 4816 struct cfg80211_crypto_settings *settings,
4817 int cipher_limit)
b23aa676 4818{
c0b2bbd8
JB		 4819 memset(settings, 0, sizeof(*settings));
4820
b23aa676
SO		 4821 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4822
c0692b8f
JB		 4823 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4824 u16 proto;
4825 proto = nla_get_u16(
4826 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4827 settings->control_port_ethertype = cpu_to_be16(proto);
4828 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4829 proto != ETH_P_PAE)
4830 return -EINVAL;
4831 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4832 settings->control_port_no_encrypt = true;
4833 } else
4834 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4835
b23aa676
SO		 4836 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4837 void *data;
4838 int len, i;
4839
4840 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4841 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4842 settings->n_ciphers_pairwise = len / sizeof(u32);
4843
4844 if (len % sizeof(u32))
4845 return -EINVAL;
4846
3dc27d25 4847 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4848 return -EINVAL;
4849
4850 memcpy(settings->ciphers_pairwise, data, len);
4851
4852 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 4853 if (!cfg80211_supported_cipher_suite(
4854 &rdev->wiphy,
b23aa676
SO		 4855 settings->ciphers_pairwise[i]))
4856 return -EINVAL;
4857 }
4858
4859 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4860 settings->cipher_group =
4861 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 4862 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4863 settings->cipher_group))
b23aa676
SO		 4864 return -EINVAL;
4865 }
4866
4867 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4868 settings->wpa_versions =
4869 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4870 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4871 return -EINVAL;
4872 }
4873
4874 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4875 void *data;
6d30240e 4876 int len;
b23aa676
SO		 4877
4878 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4879 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4880 settings->n_akm_suites = len / sizeof(u32);
4881
4882 if (len % sizeof(u32))
4883 return -EINVAL;
4884
1b9ca027
JM		 4885 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4886 return -EINVAL;
4887
b23aa676 4888 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 4889 }
4890
4891 return 0;
4892}
4893
636a5d36
JM		 4894static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4895{
4c476991
JB		 4896 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4897 struct net_device *dev = info->user_ptr[1];
19957bb3 4898 struct cfg80211_crypto_settings crypto;
f444de05 4899 struct ieee80211_channel *chan;
3e5d7649 4900 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4901 int err, ssid_len, ie_len = 0;
4902 bool use_mfp = false;
7e7c8926
BG		 4903 u32 flags = 0;
4904 struct ieee80211_ht_cap *ht_capa = NULL;
4905 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 4906
f4a11bb0
JB		 4907 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4908 return -EINVAL;
4909
4910 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4911 !info->attrs[NL80211_ATTR_SSID] ||
4912 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4913 return -EINVAL;
4914
4c476991
JB		 4915 if (!rdev->ops->assoc)
4916 return -EOPNOTSUPP;
636a5d36 4917
074ac8df 4918 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4919 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4920 return -EOPNOTSUPP;
eec60b03 4921
19957bb3 4922 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4923
19957bb3
JB		 4924 chan = ieee80211_get_channel(&rdev->wiphy,
4925 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4926 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4927 return -EINVAL;
636a5d36 4928
19957bb3
JB		 4929 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4930 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4931
4932 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4933 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4934 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4935 }
4936
dc6382ce 4937 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 4938 enum nl80211_mfp mfp =
dc6382ce 4939 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 4940 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 4941 use_mfp = true;
4c476991
JB		 4942 else if (mfp != NL80211_MFP_NO)
4943 return -EINVAL;
dc6382ce
JM		 4944 }
4945
3e5d7649
JB		 4946 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4947 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4948
7e7c8926
BG		 4949 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4950 flags |= ASSOC_REQ_DISABLE_HT;
4951
4952 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4953 ht_capa_mask =
4954 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4955
4956 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4957 if (!ht_capa_mask)
4958 return -EINVAL;
4959 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4960 }
4961
c0692b8f 4962 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 4963 if (!err)
3e5d7649
JB		 4964 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4965 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 4966 &crypto, flags, ht_capa,
4967 ht_capa_mask);
636a5d36 4968
636a5d36
JM		 4969 return err;
4970}
4971
4972static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4973{
4c476991
JB		 4974 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4975 struct net_device *dev = info->user_ptr[1];
19957bb3 4976 const u8 *ie = NULL, *bssid;
4c476991 4977 int ie_len = 0;
19957bb3 4978 u16 reason_code;
d5cdfacb 4979 bool local_state_change;
636a5d36 4980
f4a11bb0
JB		 4981 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4982 return -EINVAL;
4983
4984 if (!info->attrs[NL80211_ATTR_MAC])
4985 return -EINVAL;
4986
4987 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4988 return -EINVAL;
4989
4c476991
JB		 4990 if (!rdev->ops->deauth)
4991 return -EOPNOTSUPP;
636a5d36 4992
074ac8df 4993 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4994 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4995 return -EOPNOTSUPP;
eec60b03 4996
19957bb3 4997 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4998
19957bb3
JB		 4999 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5000 if (reason_code == 0) {
f4a11bb0 5001 /* Reason Code 0 is reserved */
4c476991 5002 return -EINVAL;
255e737e 5003 }
636a5d36
JM		 5004
5005 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5006 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5007 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5008 }
5009
d5cdfacb
JM		 5010 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5011
4c476991
JB		 5012 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5013 local_state_change);
636a5d36
JM		 5014}
5015
5016static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5017{
4c476991
JB		 5018 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5019 struct net_device *dev = info->user_ptr[1];
19957bb3 5020 const u8 *ie = NULL, *bssid;
4c476991 5021 int ie_len = 0;
19957bb3 5022 u16 reason_code;
d5cdfacb 5023 bool local_state_change;
636a5d36 5024
f4a11bb0
JB		 5025 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5026 return -EINVAL;
5027
5028 if (!info->attrs[NL80211_ATTR_MAC])
5029 return -EINVAL;
5030
5031 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5032 return -EINVAL;
5033
4c476991
JB		 5034 if (!rdev->ops->disassoc)
5035 return -EOPNOTSUPP;
636a5d36 5036
074ac8df 5037 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5038 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5039 return -EOPNOTSUPP;
eec60b03 5040
19957bb3 5041 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5042
19957bb3
JB		 5043 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5044 if (reason_code == 0) {
f4a11bb0 5045 /* Reason Code 0 is reserved */
4c476991 5046 return -EINVAL;
255e737e 5047 }
636a5d36
JM		 5048
5049 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5050 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5051 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5052 }
5053
d5cdfacb
JM		 5054 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5055
4c476991
JB		 5056 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5057 local_state_change);
636a5d36
JM		 5058}
5059
dd5b4cc7
FF		 5060static bool
5061nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5062 int mcast_rate[IEEE80211_NUM_BANDS],
5063 int rateval)
5064{
5065 struct wiphy *wiphy = &rdev->wiphy;
5066 bool found = false;
5067 int band, i;
5068
5069 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5070 struct ieee80211_supported_band *sband;
5071
5072 sband = wiphy->bands[band];
5073 if (!sband)
5074 continue;
5075
5076 for (i = 0; i < sband->n_bitrates; i++) {
5077 if (sband->bitrates[i].bitrate == rateval) {
5078 mcast_rate[band] = i + 1;
5079 found = true;
5080 break;
5081 }
5082 }
5083 }
5084
5085 return found;
5086}
5087
04a773ad
JB		 5088static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5089{
4c476991
JB		 5090 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5091 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 5092 struct cfg80211_ibss_params ibss;
5093 struct wiphy *wiphy;
fffd0934 5094 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 5095 int err;
5096
8e30bc55
JB		 5097 memset(&ibss, 0, sizeof(ibss));
5098
04a773ad
JB		 5099 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5100 return -EINVAL;
5101
5102 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5103 !info->attrs[NL80211_ATTR_SSID] ||
5104 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5105 return -EINVAL;
5106
8e30bc55
JB		 5107 ibss.beacon_interval = 100;
5108
5109 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5110 ibss.beacon_interval =
5111 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5112 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5113 return -EINVAL;
5114 }
5115
4c476991
JB		 5116 if (!rdev->ops->join_ibss)
5117 return -EOPNOTSUPP;
04a773ad 5118
4c476991
JB		 5119 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5120 return -EOPNOTSUPP;
04a773ad 5121
79c97e97 5122 wiphy = &rdev->wiphy;
04a773ad 5123
39193498 5124 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 5125 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 5126
5127 if (!is_valid_ether_addr(ibss.bssid))
5128 return -EINVAL;
5129 }
04a773ad
JB		 5130 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5131 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5132
5133 if (info->attrs[NL80211_ATTR_IE]) {
5134 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5135 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5136 }
5137
54858ee5
AS		 5138 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5139 enum nl80211_channel_type channel_type;
5140
cd6c6598 5141 if (!nl80211_valid_channel_type(info, &channel_type))
54858ee5
AS		 5142 return -EINVAL;
5143
5144 if (channel_type != NL80211_CHAN_NO_HT &&
5145 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5146 return -EINVAL;
5147
5148 ibss.channel_type = channel_type;
5149 } else {
5150 ibss.channel_type = NL80211_CHAN_NO_HT;
5151 }
5152
5153 ibss.channel = rdev_freq_to_chan(rdev,
5154 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5155 ibss.channel_type);
04a773ad
JB		 5156 if (!ibss.channel ||
5157 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 5158 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5159 return -EINVAL;
04a773ad 5160
54858ee5
AS		 5161 /* Both channels should be able to initiate communication */
5162 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5163 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5164 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5165 ibss.channel_type))
5166 return -EINVAL;
5167
04a773ad 5168 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 5169 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5170
fbd2c8dc
TP		 5171 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5172 u8 *rates =
5173 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5174 int n_rates =
5175 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5176 struct ieee80211_supported_band *sband =
5177 wiphy->bands[ibss.channel->band];
fbd2c8dc 5178
34850ab2
JB		 5179 err = ieee80211_get_ratemask(sband, rates, n_rates,
5180 &ibss.basic_rates);
5181 if (err)
5182 return err;
fbd2c8dc 5183 }
dd5b4cc7
FF		 5184
5185 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5186 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5187 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5188 return -EINVAL;
fbd2c8dc 5189
4c476991
JB		 5190 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5191 connkeys = nl80211_parse_connkeys(rdev,
5192 info->attrs[NL80211_ATTR_KEYS]);
5193 if (IS_ERR(connkeys))
5194 return PTR_ERR(connkeys);
5195 }
04a773ad 5196
267335d6
AQ		 5197 ibss.control_port =
5198 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5199
4c476991 5200 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 5201 if (err)
5202 kfree(connkeys);
04a773ad
JB		 5203 return err;
5204}
5205
5206static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5207{
4c476991
JB		 5208 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5209 struct net_device *dev = info->user_ptr[1];
04a773ad 5210
4c476991
JB		 5211 if (!rdev->ops->leave_ibss)
5212 return -EOPNOTSUPP;
04a773ad 5213
4c476991
JB		 5214 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5215 return -EOPNOTSUPP;
04a773ad 5216
4c476991 5217 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 5218}
5219
aff89a9b
JB		 5220#ifdef CONFIG_NL80211_TESTMODE
5221static struct genl_multicast_group nl80211_testmode_mcgrp = {
5222 .name = "testmode",
5223};
5224
5225static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5226{
4c476991 5227 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 5228 int err;
5229
5230 if (!info->attrs[NL80211_ATTR_TESTDATA])
5231 return -EINVAL;
5232
aff89a9b
JB		 5233 err = -EOPNOTSUPP;
5234 if (rdev->ops->testmode_cmd) {
5235 rdev->testmode_info = info;
5236 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5237 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5238 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5239 rdev->testmode_info = NULL;
5240 }
5241
aff89a9b
JB		 5242 return err;
5243}
5244
71063f0e
WYG		 5245static int nl80211_testmode_dump(struct sk_buff *skb,
5246 struct netlink_callback *cb)
5247{
00918d33 5248 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 5249 int err;
5250 long phy_idx;
5251 void *data = NULL;
5252 int data_len = 0;
5253
5254 if (cb->args[0]) {
5255 /*
5256 * 0 is a valid index, but not valid for args[0],
5257 * so we need to offset by 1.
5258 */
5259 phy_idx = cb->args[0] - 1;
5260 } else {
5261 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5262 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5263 nl80211_policy);
5264 if (err)
5265 return err;
00918d33 5266
2bd7e35d
JB		 5267 mutex_lock(&cfg80211_mutex);
5268 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5269 nl80211_fam.attrbuf);
5270 if (IS_ERR(rdev)) {
5271 mutex_unlock(&cfg80211_mutex);
5272 return PTR_ERR(rdev);
00918d33 5273 }
2bd7e35d
JB		 5274 phy_idx = rdev->wiphy_idx;
5275 rdev = NULL;
5276 mutex_unlock(&cfg80211_mutex);
5277
71063f0e
WYG		 5278 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5279 cb->args[1] =
5280 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5281 }
5282
5283 if (cb->args[1]) {
5284 data = nla_data((void *)cb->args[1]);
5285 data_len = nla_len((void *)cb->args[1]);
5286 }
5287
5288 mutex_lock(&cfg80211_mutex);
00918d33
JB		 5289 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5290 if (!rdev) {
71063f0e
WYG		 5291 mutex_unlock(&cfg80211_mutex);
5292 return -ENOENT;
5293 }
00918d33 5294 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 5295 mutex_unlock(&cfg80211_mutex);
5296
00918d33 5297 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 5298 err = -EOPNOTSUPP;
5299 goto out_err;
5300 }
5301
5302 while (1) {
5303 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5304 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5305 NL80211_CMD_TESTMODE);
5306 struct nlattr *tmdata;
5307
9360ffd1 5308 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 5309 genlmsg_cancel(skb, hdr);
5310 break;
5311 }
5312
5313 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5314 if (!tmdata) {
5315 genlmsg_cancel(skb, hdr);
5316 break;
5317 }
00918d33
JB		 5318 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5319 data, data_len);
71063f0e
WYG		 5320 nla_nest_end(skb, tmdata);
5321
5322 if (err == -ENOBUFS || err == -ENOENT) {
5323 genlmsg_cancel(skb, hdr);
5324 break;
5325 } else if (err) {
5326 genlmsg_cancel(skb, hdr);
5327 goto out_err;
5328 }
5329
5330 genlmsg_end(skb, hdr);
5331 }
5332
5333 err = skb->len;
5334 /* see above */
5335 cb->args[0] = phy_idx + 1;
5336 out_err:
00918d33 5337 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 5338 return err;
5339}
5340
aff89a9b
JB		 5341static struct sk_buff *
5342__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5343 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5344{
5345 struct sk_buff *skb;
5346 void *hdr;
5347 struct nlattr *data;
5348
5349 skb = nlmsg_new(approxlen + 100, gfp);
5350 if (!skb)
5351 return NULL;
5352
5353 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5354 if (!hdr) {
5355 kfree_skb(skb);
5356 return NULL;
5357 }
5358
9360ffd1
DM		 5359 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5360 goto nla_put_failure;
aff89a9b
JB		 5361 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5362
5363 ((void **)skb->cb)[0] = rdev;
5364 ((void **)skb->cb)[1] = hdr;
5365 ((void **)skb->cb)[2] = data;
5366
5367 return skb;
5368
5369 nla_put_failure:
5370 kfree_skb(skb);
5371 return NULL;
5372}
5373
5374struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5375 int approxlen)
5376{
5377 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5378
5379 if (WARN_ON(!rdev->testmode_info))
5380 return NULL;
5381
5382 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5383 rdev->testmode_info->snd_pid,
5384 rdev->testmode_info->snd_seq,
5385 GFP_KERNEL);
5386}
5387EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5388
5389int cfg80211_testmode_reply(struct sk_buff *skb)
5390{
5391 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5392 void *hdr = ((void **)skb->cb)[1];
5393 struct nlattr *data = ((void **)skb->cb)[2];
5394
5395 if (WARN_ON(!rdev->testmode_info)) {
5396 kfree_skb(skb);
5397 return -EINVAL;
5398 }
5399
5400 nla_nest_end(skb, data);
5401 genlmsg_end(skb, hdr);
5402 return genlmsg_reply(skb, rdev->testmode_info);
5403}
5404EXPORT_SYMBOL(cfg80211_testmode_reply);
5405
5406struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5407 int approxlen, gfp_t gfp)
5408{
5409 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5410
5411 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5412}
5413EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5414
5415void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5416{
5417 void *hdr = ((void **)skb->cb)[1];
5418 struct nlattr *data = ((void **)skb->cb)[2];
5419
5420 nla_nest_end(skb, data);
5421 genlmsg_end(skb, hdr);
5422 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5423}
5424EXPORT_SYMBOL(cfg80211_testmode_event);
5425#endif
5426
b23aa676
SO		 5427static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5428{
4c476991
JB		 5429 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5430 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5431 struct cfg80211_connect_params connect;
5432 struct wiphy *wiphy;
fffd0934 5433 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 5434 int err;
5435
5436 memset(&connect, 0, sizeof(connect));
5437
5438 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5439 return -EINVAL;
5440
5441 if (!info->attrs[NL80211_ATTR_SSID] ||
5442 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5443 return -EINVAL;
5444
5445 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5446 connect.auth_type =
5447 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5448 if (!nl80211_valid_auth_type(connect.auth_type))
5449 return -EINVAL;
5450 } else
5451 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5452
5453 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5454
c0692b8f 5455 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5456 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5457 if (err)
5458 return err;
b23aa676 5459
074ac8df 5460 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5461 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5462 return -EOPNOTSUPP;
b23aa676 5463
79c97e97 5464 wiphy = &rdev->wiphy;
b23aa676 5465
4486ea98
BS		 5466 connect.bg_scan_period = -1;
5467 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5468 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5469 connect.bg_scan_period =
5470 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5471 }
5472
b23aa676
SO		 5473 if (info->attrs[NL80211_ATTR_MAC])
5474 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5475 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5476 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5477
5478 if (info->attrs[NL80211_ATTR_IE]) {
5479 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5480 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5481 }
5482
5483 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5484 connect.channel =
5485 ieee80211_get_channel(wiphy,
5486 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5487 if (!connect.channel ||
4c476991
JB		 5488 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5489 return -EINVAL;
b23aa676
SO		 5490 }
5491
fffd0934
JB		 5492 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5493 connkeys = nl80211_parse_connkeys(rdev,
5494 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 5495 if (IS_ERR(connkeys))
5496 return PTR_ERR(connkeys);
fffd0934
JB		 5497 }
5498
7e7c8926
BG		 5499 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5500 connect.flags |= ASSOC_REQ_DISABLE_HT;
5501
5502 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5503 memcpy(&connect.ht_capa_mask,
5504 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5505 sizeof(connect.ht_capa_mask));
5506
5507 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5508 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5509 return -EINVAL;
5510 memcpy(&connect.ht_capa,
5511 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5512 sizeof(connect.ht_capa));
5513 }
5514
fffd0934 5515 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5516 if (err)
5517 kfree(connkeys);
b23aa676
SO		 5518 return err;
5519}
5520
5521static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5522{
4c476991
JB		 5523 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5524 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5525 u16 reason;
5526
5527 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5528 reason = WLAN_REASON_DEAUTH_LEAVING;
5529 else
5530 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5531
5532 if (reason == 0)
5533 return -EINVAL;
5534
074ac8df 5535 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5536 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5537 return -EOPNOTSUPP;
b23aa676 5538
4c476991 5539 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5540}
5541
463d0183
JB		 5542static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5543{
4c476991 5544 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5545 struct net *net;
5546 int err;
5547 u32 pid;
5548
5549 if (!info->attrs[NL80211_ATTR_PID])
5550 return -EINVAL;
5551
5552 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5553
463d0183 5554 net = get_net_ns_by_pid(pid);
4c476991
JB		 5555 if (IS_ERR(net))
5556 return PTR_ERR(net);
463d0183
JB		 5557
5558 err = 0;
5559
5560 /* check if anything to do */
4c476991
JB		 5561 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5562 err = cfg80211_switch_netns(rdev, net);
463d0183 5563
463d0183 5564 put_net(net);
463d0183
JB		 5565 return err;
5566}
5567
67fbb16b
SO		 5568static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5569{
4c476991 5570 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5571 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5572 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5573 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5574 struct cfg80211_pmksa pmksa;
5575
5576 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5577
5578 if (!info->attrs[NL80211_ATTR_MAC])
5579 return -EINVAL;
5580
5581 if (!info->attrs[NL80211_ATTR_PMKID])
5582 return -EINVAL;
5583
67fbb16b
SO		 5584 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5585 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5586
074ac8df 5587 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5588 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5589 return -EOPNOTSUPP;
67fbb16b
SO		 5590
5591 switch (info->genlhdr->cmd) {
5592 case NL80211_CMD_SET_PMKSA:
5593 rdev_ops = rdev->ops->set_pmksa;
5594 break;
5595 case NL80211_CMD_DEL_PMKSA:
5596 rdev_ops = rdev->ops->del_pmksa;
5597 break;
5598 default:
5599 WARN_ON(1);
5600 break;
5601 }
5602
4c476991
JB		 5603 if (!rdev_ops)
5604 return -EOPNOTSUPP;
67fbb16b 5605
4c476991 5606 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5607}
5608
5609static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5610{
4c476991
JB		 5611 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5612 struct net_device *dev = info->user_ptr[1];
67fbb16b 5613
074ac8df 5614 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5615 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5616 return -EOPNOTSUPP;
67fbb16b 5617
4c476991
JB		 5618 if (!rdev->ops->flush_pmksa)
5619 return -EOPNOTSUPP;
67fbb16b 5620
4c476991 5621 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 5622}
5623
109086ce
AN		 5624static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5625{
5626 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5627 struct net_device *dev = info->user_ptr[1];
5628 u8 action_code, dialog_token;
5629 u16 status_code;
5630 u8 *peer;
5631
5632 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5633 !rdev->ops->tdls_mgmt)
5634 return -EOPNOTSUPP;
5635
5636 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5637 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5638 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5639 !info->attrs[NL80211_ATTR_IE] ||
5640 !info->attrs[NL80211_ATTR_MAC])
5641 return -EINVAL;
5642
5643 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5644 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5645 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5646 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5647
5648 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5649 dialog_token, status_code,
5650 nla_data(info->attrs[NL80211_ATTR_IE]),
5651 nla_len(info->attrs[NL80211_ATTR_IE]));
5652}
5653
5654static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5655{
5656 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5657 struct net_device *dev = info->user_ptr[1];
5658 enum nl80211_tdls_operation operation;
5659 u8 *peer;
5660
5661 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5662 !rdev->ops->tdls_oper)
5663 return -EOPNOTSUPP;
5664
5665 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5666 !info->attrs[NL80211_ATTR_MAC])
5667 return -EINVAL;
5668
5669 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5670 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5671
5672 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5673}
5674
9588bbd5
JM		 5675static int nl80211_remain_on_channel(struct sk_buff *skb,
5676 struct genl_info *info)
5677{
4c476991
JB		 5678 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5679 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 5680 struct ieee80211_channel *chan;
5681 struct sk_buff *msg;
5682 void *hdr;
5683 u64 cookie;
5684 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5685 u32 freq, duration;
5686 int err;
5687
5688 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5689 !info->attrs[NL80211_ATTR_DURATION])
5690 return -EINVAL;
5691
5692 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5693
ebf348fc
JB		 5694 if (!rdev->ops->remain_on_channel ||
5695 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5696 return -EOPNOTSUPP;
5697
9588bbd5 5698 /*
ebf348fc
JB		 5699 * We should be on that channel for at least a minimum amount of
5700 * time (10ms) but no longer than the driver supports.
9588bbd5 5701 */
ebf348fc 5702 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 5703 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 5704 return -EINVAL;
5705
cd6c6598
JB		 5706 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5707 !nl80211_valid_channel_type(info, &channel_type))
5708 return -EINVAL;
9588bbd5
JM		 5709
5710 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5711 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5712 if (chan == NULL)
5713 return -EINVAL;
9588bbd5
JM		 5714
5715 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5716 if (!msg)
5717 return -ENOMEM;
9588bbd5
JM		 5718
5719 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5720 NL80211_CMD_REMAIN_ON_CHANNEL);
5721
5722 if (IS_ERR(hdr)) {
5723 err = PTR_ERR(hdr);
5724 goto free_msg;
5725 }
5726
5727 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5728 channel_type, duration, &cookie);
5729
5730 if (err)
5731 goto free_msg;
5732
9360ffd1
DM		 5733 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5734 goto nla_put_failure;
9588bbd5
JM		 5735
5736 genlmsg_end(msg, hdr);
4c476991
JB		 5737
5738 return genlmsg_reply(msg, info);
9588bbd5
JM		 5739
5740 nla_put_failure:
5741 err = -ENOBUFS;
5742 free_msg:
5743 nlmsg_free(msg);
9588bbd5
JM		 5744 return err;
5745}
5746
5747static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5748 struct genl_info *info)
5749{
4c476991
JB		 5750 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5751 struct net_device *dev = info->user_ptr[1];
9588bbd5 5752 u64 cookie;
9588bbd5
JM		 5753
5754 if (!info->attrs[NL80211_ATTR_COOKIE])
5755 return -EINVAL;
5756
4c476991
JB		 5757 if (!rdev->ops->cancel_remain_on_channel)
5758 return -EOPNOTSUPP;
9588bbd5 5759
9588bbd5
JM		 5760 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5761
4c476991 5762 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 5763}
5764
13ae75b1
JM		 5765static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5766 u8 *rates, u8 rates_len)
5767{
5768 u8 i;
5769 u32 mask = 0;
5770
5771 for (i = 0; i < rates_len; i++) {
5772 int rate = (rates[i] & 0x7f) * 5;
5773 int ridx;
5774 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5775 struct ieee80211_rate *srate =
5776 &sband->bitrates[ridx];
5777 if (rate == srate->bitrate) {
5778 mask |= 1 << ridx;
5779 break;
5780 }
5781 }
5782 if (ridx == sband->n_bitrates)
5783 return 0; /* rate not found */
5784 }
5785
5786 return mask;
5787}
5788
24db78c0
SW		 5789static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5790 u8 *rates, u8 rates_len,
5791 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5792{
5793 u8 i;
5794
5795 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5796
5797 for (i = 0; i < rates_len; i++) {
5798 int ridx, rbit;
5799
5800 ridx = rates[i] / 8;
5801 rbit = BIT(rates[i] % 8);
5802
5803 /* check validity */
910570b5 5804 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 5805 return false;
5806
5807 /* check availability */
5808 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5809 mcs[ridx] |= rbit;
5810 else
5811 return false;
5812 }
5813
5814 return true;
5815}
5816
b54452b0 5817static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 5818 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5819 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 5820 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5821 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 5822};
5823
5824static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5825 struct genl_info *info)
5826{
5827 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 5828 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 5829 struct cfg80211_bitrate_mask mask;
4c476991
JB		 5830 int rem, i;
5831 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 5832 struct nlattr *tx_rates;
5833 struct ieee80211_supported_band *sband;
5834
5835 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5836 return -EINVAL;
5837
4c476991
JB		 5838 if (!rdev->ops->set_bitrate_mask)
5839 return -EOPNOTSUPP;
13ae75b1
JM		 5840
5841 memset(&mask, 0, sizeof(mask));
5842 /* Default to all rates enabled */
5843 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5844 sband = rdev->wiphy.bands[i];
5845 mask.control[i].legacy =
5846 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 5847 if (sband)
5848 memcpy(mask.control[i].mcs,
5849 sband->ht_cap.mcs.rx_mask,
5850 sizeof(mask.control[i].mcs));
5851 else
5852 memset(mask.control[i].mcs, 0,
5853 sizeof(mask.control[i].mcs));
13ae75b1
JM		 5854 }
5855
5856 /*
5857 * The nested attribute uses enum nl80211_band as the index. This maps
5858 * directly to the enum ieee80211_band values used in cfg80211.
5859 */
24db78c0 5860 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 5861 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5862 {
5863 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 5864 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5865 return -EINVAL;
13ae75b1 5866 sband = rdev->wiphy.bands[band];
4c476991
JB		 5867 if (sband == NULL)
5868 return -EINVAL;
13ae75b1
JM		 5869 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5870 nla_len(tx_rates), nl80211_txattr_policy);
5871 if (tb[NL80211_TXRATE_LEGACY]) {
5872 mask.control[band].legacy = rateset_to_mask(
5873 sband,
5874 nla_data(tb[NL80211_TXRATE_LEGACY]),
5875 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 5876 if ((mask.control[band].legacy == 0) &&
5877 nla_len(tb[NL80211_TXRATE_LEGACY]))
5878 return -EINVAL;
24db78c0
SW		 5879 }
5880 if (tb[NL80211_TXRATE_MCS]) {
5881 if (!ht_rateset_to_mask(
5882 sband,
5883 nla_data(tb[NL80211_TXRATE_MCS]),
5884 nla_len(tb[NL80211_TXRATE_MCS]),
5885 mask.control[band].mcs))
5886 return -EINVAL;
5887 }
5888
5889 if (mask.control[band].legacy == 0) {
5890 /* don't allow empty legacy rates if HT
5891 * is not even supported. */
5892 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5893 return -EINVAL;
5894
5895 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5896 if (mask.control[band].mcs[i])
5897 break;
5898
5899 /* legacy and mcs rates may not be both empty */
5900 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 5901 return -EINVAL;
13ae75b1
JM		 5902 }
5903 }
5904
4c476991 5905 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 5906}
5907
2e161f78 5908static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5909{
4c476991
JB		 5910 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5911 struct net_device *dev = info->user_ptr[1];
2e161f78 5912 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 5913
5914 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5915 return -EINVAL;
5916
2e161f78
JB		 5917 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5918 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 5919
9d38d85d 5920 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5921 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5922 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5923 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5924 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5925 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5926 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5927 return -EOPNOTSUPP;
026331c4
JM		 5928
5929 /* not much point in registering if we can't reply */
4c476991
JB		 5930 if (!rdev->ops->mgmt_tx)
5931 return -EOPNOTSUPP;
026331c4 5932
4c476991 5933 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 5934 frame_type,
026331c4
JM		 5935 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5936 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 5937}
5938
2e161f78 5939static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5940{
4c476991
JB		 5941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5942 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 5943 struct ieee80211_channel *chan;
5944 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 5945 bool channel_type_valid = false;
026331c4
JM		 5946 u32 freq;
5947 int err;
d64d373f 5948 void *hdr = NULL;
026331c4 5949 u64 cookie;
e247bd90 5950 struct sk_buff *msg = NULL;
f7ca38df 5951 unsigned int wait = 0;
e247bd90
JB		 5952 bool offchan, no_cck, dont_wait_for_ack;
5953
5954 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4
JM		 5955
5956 if (!info->attrs[NL80211_ATTR_FRAME] ||
5957 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5958 return -EINVAL;
5959
4c476991
JB		 5960 if (!rdev->ops->mgmt_tx)
5961 return -EOPNOTSUPP;
026331c4 5962
9d38d85d 5963 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5964 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5965 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5966 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5967 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5968 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5969 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5970 return -EOPNOTSUPP;
026331c4 5971
f7ca38df 5972 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 5973 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 5974 return -EINVAL;
5975 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 5976
5977 /*
5978 * We should wait on the channel for at least a minimum amount
5979 * of time (10ms) but no longer than the driver supports.
5980 */
5981 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5982 wait > rdev->wiphy.max_remain_on_channel_duration)
5983 return -EINVAL;
5984
f7ca38df
JB		 5985 }
5986
026331c4 5987 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
cd6c6598 5988 if (!nl80211_valid_channel_type(info, &channel_type))
4c476991 5989 return -EINVAL;
252aa631 5990 channel_type_valid = true;
026331c4
JM		 5991 }
5992
f7ca38df
JB		 5993 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5994
7c4ef712
JB		 5995 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5996 return -EINVAL;
5997
e9f935e3
RM		 5998 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5999
026331c4
JM		 6000 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6001 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 6002 if (chan == NULL)
6003 return -EINVAL;
026331c4 6004
e247bd90
JB		 6005 if (!dont_wait_for_ack) {
6006 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6007 if (!msg)
6008 return -ENOMEM;
026331c4 6009
e247bd90
JB		 6010 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6011 NL80211_CMD_FRAME);
026331c4 6012
e247bd90
JB		 6013 if (IS_ERR(hdr)) {
6014 err = PTR_ERR(hdr);
6015 goto free_msg;
6016 }
026331c4 6017 }
e247bd90 6018
f7ca38df
JB		 6019 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
6020 channel_type_valid, wait,
2e161f78
JB		 6021 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6022 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 6023 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 6024 if (err)
6025 goto free_msg;
6026
e247bd90 6027 if (msg) {
9360ffd1
DM		 6028 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6029 goto nla_put_failure;
026331c4 6030
e247bd90
JB		 6031 genlmsg_end(msg, hdr);
6032 return genlmsg_reply(msg, info);
6033 }
6034
6035 return 0;
026331c4
JM		 6036
6037 nla_put_failure:
6038 err = -ENOBUFS;
6039 free_msg:
6040 nlmsg_free(msg);
026331c4
JM		 6041 return err;
6042}
6043
f7ca38df
JB		 6044static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6045{
6046 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6047 struct net_device *dev = info->user_ptr[1];
6048 u64 cookie;
6049
6050 if (!info->attrs[NL80211_ATTR_COOKIE])
6051 return -EINVAL;
6052
6053 if (!rdev->ops->mgmt_tx_cancel_wait)
6054 return -EOPNOTSUPP;
6055
6056 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6057 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6058 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
6059 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6060 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
6061 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
6062 return -EOPNOTSUPP;
6063
6064 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6065
6066 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
6067}
6068
ffb9eb3d
KV		 6069static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6070{
4c476991 6071 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 6072 struct wireless_dev *wdev;
4c476991 6073 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6074 u8 ps_state;
6075 bool state;
6076 int err;
6077
4c476991
JB		 6078 if (!info->attrs[NL80211_ATTR_PS_STATE])
6079 return -EINVAL;
ffb9eb3d
KV		 6080
6081 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6082
4c476991
JB		 6083 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6084 return -EINVAL;
ffb9eb3d
KV		 6085
6086 wdev = dev->ieee80211_ptr;
6087
4c476991
JB		 6088 if (!rdev->ops->set_power_mgmt)
6089 return -EOPNOTSUPP;
ffb9eb3d
KV		 6090
6091 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6092
6093 if (state == wdev->ps)
4c476991 6094 return 0;
ffb9eb3d 6095
4c476991
JB		 6096 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6097 wdev->ps_timeout);
6098 if (!err)
6099 wdev->ps = state;
ffb9eb3d
KV		 6100 return err;
6101}
6102
6103static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6104{
4c476991 6105 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 6106 enum nl80211_ps_state ps_state;
6107 struct wireless_dev *wdev;
4c476991 6108 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6109 struct sk_buff *msg;
6110 void *hdr;
6111 int err;
6112
ffb9eb3d
KV		 6113 wdev = dev->ieee80211_ptr;
6114
4c476991
JB		 6115 if (!rdev->ops->set_power_mgmt)
6116 return -EOPNOTSUPP;
ffb9eb3d
KV		 6117
6118 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6119 if (!msg)
6120 return -ENOMEM;
ffb9eb3d
KV		 6121
6122 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6123 NL80211_CMD_GET_POWER_SAVE);
6124 if (!hdr) {
4c476991 6125 err = -ENOBUFS;
ffb9eb3d
KV		 6126 goto free_msg;
6127 }
6128
6129 if (wdev->ps)
6130 ps_state = NL80211_PS_ENABLED;
6131 else
6132 ps_state = NL80211_PS_DISABLED;
6133
9360ffd1
DM		 6134 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6135 goto nla_put_failure;
ffb9eb3d
KV		 6136
6137 genlmsg_end(msg, hdr);
4c476991 6138 return genlmsg_reply(msg, info);
ffb9eb3d 6139
4c476991 6140 nla_put_failure:
ffb9eb3d 6141 err = -ENOBUFS;
4c476991 6142 free_msg:
ffb9eb3d 6143 nlmsg_free(msg);
ffb9eb3d
KV		 6144 return err;
6145}
6146
d6dc1a38
JO		 6147static struct nla_policy
6148nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6149 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6150 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6151 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6152};
6153
6154static int nl80211_set_cqm_rssi(struct genl_info *info,
6155 s32 threshold, u32 hysteresis)
6156{
4c476991 6157 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 6158 struct wireless_dev *wdev;
4c476991 6159 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 6160
6161 if (threshold > 0)
6162 return -EINVAL;
6163
d6dc1a38
JO		 6164 wdev = dev->ieee80211_ptr;
6165
4c476991
JB		 6166 if (!rdev->ops->set_cqm_rssi_config)
6167 return -EOPNOTSUPP;
d6dc1a38 6168
074ac8df 6169 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6170 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6171 return -EOPNOTSUPP;
d6dc1a38 6172
4c476991
JB		 6173 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6174 threshold, hysteresis);
d6dc1a38
JO		 6175}
6176
6177static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6178{
6179 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6180 struct nlattr *cqm;
6181 int err;
6182
6183 cqm = info->attrs[NL80211_ATTR_CQM];
6184 if (!cqm) {
6185 err = -EINVAL;
6186 goto out;
6187 }
6188
6189 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6190 nl80211_attr_cqm_policy);
6191 if (err)
6192 goto out;
6193
6194 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6195 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6196 s32 threshold;
6197 u32 hysteresis;
6198 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6199 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6200 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6201 } else
6202 err = -EINVAL;
6203
6204out:
6205 return err;
6206}
6207
29cbe68c
JB		 6208static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6209{
6210 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6211 struct net_device *dev = info->user_ptr[1];
6212 struct mesh_config cfg;
c80d545d 6213 struct mesh_setup setup;
29cbe68c
JB		 6214 int err;
6215
6216 /* start with default */
6217 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 6218 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 6219
24bdd9f4 6220 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 6221 /* and parse parameters if given */
24bdd9f4 6222 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 6223 if (err)
6224 return err;
6225 }
6226
6227 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6228 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6229 return -EINVAL;
6230
c80d545d
JC		 6231 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6232 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6233
4bb62344
CYY		 6234 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6235 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6236 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6237 return -EINVAL;
6238
c80d545d
JC		 6239 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6240 /* parse additional setup parameters if given */
6241 err = nl80211_parse_mesh_setup(info, &setup);
6242 if (err)
6243 return err;
6244 }
6245
cc1d2806
JB		 6246 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6247 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6248
6249 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6250 !nl80211_valid_channel_type(info, &channel_type))
6251 return -EINVAL;
6252
6253 setup.channel = rdev_freq_to_chan(rdev,
6254 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6255 channel_type);
6256 if (!setup.channel)
6257 return -EINVAL;
6258 setup.channel_type = channel_type;
6259 } else {
6260 /* cfg80211_join_mesh() will sort it out */
6261 setup.channel = NULL;
6262 }
6263
c80d545d 6264 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 6265}
6266
6267static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6268{
6269 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6270 struct net_device *dev = info->user_ptr[1];
6271
6272 return cfg80211_leave_mesh(rdev, dev);
6273}
6274
dfb89c56 6275#ifdef CONFIG_PM
ff1b6e69
JB		 6276static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6277{
6278 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6279 struct sk_buff *msg;
6280 void *hdr;
6281
6282 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6283 return -EOPNOTSUPP;
6284
6285 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6286 if (!msg)
6287 return -ENOMEM;
6288
6289 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6290 NL80211_CMD_GET_WOWLAN);
6291 if (!hdr)
6292 goto nla_put_failure;
6293
6294 if (rdev->wowlan) {
6295 struct nlattr *nl_wowlan;
6296
6297 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6298 if (!nl_wowlan)
6299 goto nla_put_failure;
6300
9360ffd1
DM		 6301 if ((rdev->wowlan->any &&
6302 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6303 (rdev->wowlan->disconnect &&
6304 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6305 (rdev->wowlan->magic_pkt &&
6306 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6307 (rdev->wowlan->gtk_rekey_failure &&
6308 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6309 (rdev->wowlan->eap_identity_req &&
6310 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6311 (rdev->wowlan->four_way_handshake &&
6312 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6313 (rdev->wowlan->rfkill_release &&
6314 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6315 goto nla_put_failure;
ff1b6e69
JB		 6316 if (rdev->wowlan->n_patterns) {
6317 struct nlattr *nl_pats, *nl_pat;
6318 int i, pat_len;
6319
6320 nl_pats = nla_nest_start(msg,
6321 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6322 if (!nl_pats)
6323 goto nla_put_failure;
6324
6325 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6326 nl_pat = nla_nest_start(msg, i + 1);
6327 if (!nl_pat)
6328 goto nla_put_failure;
6329 pat_len = rdev->wowlan->patterns[i].pattern_len;
9360ffd1
DM		 6330 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6331 DIV_ROUND_UP(pat_len, 8),
6332 rdev->wowlan->patterns[i].mask) ||
6333 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6334 pat_len,
6335 rdev->wowlan->patterns[i].pattern))
6336 goto nla_put_failure;
ff1b6e69
JB		 6337 nla_nest_end(msg, nl_pat);
6338 }
6339 nla_nest_end(msg, nl_pats);
6340 }
6341
6342 nla_nest_end(msg, nl_wowlan);
6343 }
6344
6345 genlmsg_end(msg, hdr);
6346 return genlmsg_reply(msg, info);
6347
6348nla_put_failure:
6349 nlmsg_free(msg);
6350 return -ENOBUFS;
6351}
6352
6353static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6354{
6355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6356 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6357 struct cfg80211_wowlan no_triggers = {};
6358 struct cfg80211_wowlan new_triggers = {};
6359 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6360 int err, i;
6d52563f 6361 bool prev_enabled = rdev->wowlan;
ff1b6e69
JB		 6362
6363 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6364 return -EOPNOTSUPP;
6365
6366 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6367 goto no_triggers;
6368
6369 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6370 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6371 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6372 nl80211_wowlan_policy);
6373 if (err)
6374 return err;
6375
6376 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6377 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6378 return -EINVAL;
6379 new_triggers.any = true;
6380 }
6381
6382 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6383 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6384 return -EINVAL;
6385 new_triggers.disconnect = true;
6386 }
6387
6388 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6389 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6390 return -EINVAL;
6391 new_triggers.magic_pkt = true;
6392 }
6393
77dbbb13
JB		 6394 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6395 return -EINVAL;
6396
6397 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6398 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6399 return -EINVAL;
6400 new_triggers.gtk_rekey_failure = true;
6401 }
6402
6403 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6404 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6405 return -EINVAL;
6406 new_triggers.eap_identity_req = true;
6407 }
6408
6409 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6410 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6411 return -EINVAL;
6412 new_triggers.four_way_handshake = true;
6413 }
6414
6415 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6416 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6417 return -EINVAL;
6418 new_triggers.rfkill_release = true;
6419 }
6420
ff1b6e69
JB		 6421 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6422 struct nlattr *pat;
6423 int n_patterns = 0;
6424 int rem, pat_len, mask_len;
6425 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6426
6427 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6428 rem)
6429 n_patterns++;
6430 if (n_patterns > wowlan->n_patterns)
6431 return -EINVAL;
6432
6433 new_triggers.patterns = kcalloc(n_patterns,
6434 sizeof(new_triggers.patterns[0]),
6435 GFP_KERNEL);
6436 if (!new_triggers.patterns)
6437 return -ENOMEM;
6438
6439 new_triggers.n_patterns = n_patterns;
6440 i = 0;
6441
6442 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6443 rem) {
6444 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6445 nla_data(pat), nla_len(pat), NULL);
6446 err = -EINVAL;
6447 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6448 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6449 goto error;
6450 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6451 mask_len = DIV_ROUND_UP(pat_len, 8);
6452 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6453 mask_len)
6454 goto error;
6455 if (pat_len > wowlan->pattern_max_len ||
6456 pat_len < wowlan->pattern_min_len)
6457 goto error;
6458
6459 new_triggers.patterns[i].mask =
6460 kmalloc(mask_len + pat_len, GFP_KERNEL);
6461 if (!new_triggers.patterns[i].mask) {
6462 err = -ENOMEM;
6463 goto error;
6464 }
6465 new_triggers.patterns[i].pattern =
6466 new_triggers.patterns[i].mask + mask_len;
6467 memcpy(new_triggers.patterns[i].mask,
6468 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6469 mask_len);
6470 new_triggers.patterns[i].pattern_len = pat_len;
6471 memcpy(new_triggers.patterns[i].pattern,
6472 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6473 pat_len);
6474 i++;
6475 }
6476 }
6477
6478 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6479 struct cfg80211_wowlan *ntrig;
6480 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6481 GFP_KERNEL);
6482 if (!ntrig) {
6483 err = -ENOMEM;
6484 goto error;
6485 }
6486 cfg80211_rdev_free_wowlan(rdev);
6487 rdev->wowlan = ntrig;
6488 } else {
6489 no_triggers:
6490 cfg80211_rdev_free_wowlan(rdev);
6491 rdev->wowlan = NULL;
6492 }
6493
6d52563f
JB		 6494 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6495 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6496
ff1b6e69
JB		 6497 return 0;
6498 error:
6499 for (i = 0; i < new_triggers.n_patterns; i++)
6500 kfree(new_triggers.patterns[i].mask);
6501 kfree(new_triggers.patterns);
6502 return err;
6503}
dfb89c56 6504#endif
ff1b6e69 6505
e5497d76
JB		 6506static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6507{
6508 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6509 struct net_device *dev = info->user_ptr[1];
6510 struct wireless_dev *wdev = dev->ieee80211_ptr;
6511 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6512 struct cfg80211_gtk_rekey_data rekey_data;
6513 int err;
6514
6515 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6516 return -EINVAL;
6517
6518 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6519 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6520 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6521 nl80211_rekey_policy);
6522 if (err)
6523 return err;
6524
6525 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6526 return -ERANGE;
6527 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6528 return -ERANGE;
6529 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6530 return -ERANGE;
6531
6532 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6533 NL80211_KEK_LEN);
6534 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6535 NL80211_KCK_LEN);
6536 memcpy(rekey_data.replay_ctr,
6537 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6538 NL80211_REPLAY_CTR_LEN);
6539
6540 wdev_lock(wdev);
6541 if (!wdev->current_bss) {
6542 err = -ENOTCONN;
6543 goto out;
6544 }
6545
6546 if (!rdev->ops->set_rekey_data) {
6547 err = -EOPNOTSUPP;
6548 goto out;
6549 }
6550
6551 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6552 out:
6553 wdev_unlock(wdev);
6554 return err;
6555}
6556
28946da7
JB		 6557static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6558 struct genl_info *info)
6559{
6560 struct net_device *dev = info->user_ptr[1];
6561 struct wireless_dev *wdev = dev->ieee80211_ptr;
6562
6563 if (wdev->iftype != NL80211_IFTYPE_AP &&
6564 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6565 return -EINVAL;
6566
6567 if (wdev->ap_unexpected_nlpid)
6568 return -EBUSY;
6569
6570 wdev->ap_unexpected_nlpid = info->snd_pid;
6571 return 0;
6572}
6573
7f6cf311
JB		 6574static int nl80211_probe_client(struct sk_buff *skb,
6575 struct genl_info *info)
6576{
6577 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6578 struct net_device *dev = info->user_ptr[1];
6579 struct wireless_dev *wdev = dev->ieee80211_ptr;
6580 struct sk_buff *msg;
6581 void *hdr;
6582 const u8 *addr;
6583 u64 cookie;
6584 int err;
6585
6586 if (wdev->iftype != NL80211_IFTYPE_AP &&
6587 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6588 return -EOPNOTSUPP;
6589
6590 if (!info->attrs[NL80211_ATTR_MAC])
6591 return -EINVAL;
6592
6593 if (!rdev->ops->probe_client)
6594 return -EOPNOTSUPP;
6595
6596 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6597 if (!msg)
6598 return -ENOMEM;
6599
6600 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6601 NL80211_CMD_PROBE_CLIENT);
6602
6603 if (IS_ERR(hdr)) {
6604 err = PTR_ERR(hdr);
6605 goto free_msg;
6606 }
6607
6608 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6609
6610 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6611 if (err)
6612 goto free_msg;
6613
9360ffd1
DM		 6614 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6615 goto nla_put_failure;
7f6cf311
JB		 6616
6617 genlmsg_end(msg, hdr);
6618
6619 return genlmsg_reply(msg, info);
6620
6621 nla_put_failure:
6622 err = -ENOBUFS;
6623 free_msg:
6624 nlmsg_free(msg);
6625 return err;
6626}
6627
5e760230
JB		 6628static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6629{
6630 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6631
6632 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6633 return -EOPNOTSUPP;
6634
6635 if (rdev->ap_beacons_nlpid)
6636 return -EBUSY;
6637
6638 rdev->ap_beacons_nlpid = info->snd_pid;
6639
6640 return 0;
6641}
6642
4c476991
JB		 6643#define NL80211_FLAG_NEED_WIPHY 0x01
6644#define NL80211_FLAG_NEED_NETDEV 0x02
6645#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 6646#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6647#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6648 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 6649
6650static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6651 struct genl_info *info)
6652{
6653 struct cfg80211_registered_device *rdev;
6654 struct net_device *dev;
6655 int err;
6656 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6657
6658 if (rtnl)
6659 rtnl_lock();
6660
6661 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 6662 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 6663 if (IS_ERR(rdev)) {
6664 if (rtnl)
6665 rtnl_unlock();
6666 return PTR_ERR(rdev);
6667 }
6668 info->user_ptr[0] = rdev;
6669 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
00918d33
JB		 6670 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6671 &rdev, &dev);
4c476991
JB		 6672 if (err) {
6673 if (rtnl)
6674 rtnl_unlock();
6675 return err;
6676 }
41265714
JB		 6677 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6678 !netif_running(dev)) {
d537f5fd
JB		 6679 cfg80211_unlock_rdev(rdev);
6680 dev_put(dev);
41265714
JB		 6681 if (rtnl)
6682 rtnl_unlock();
6683 return -ENETDOWN;
6684 }
4c476991
JB		 6685 info->user_ptr[0] = rdev;
6686 info->user_ptr[1] = dev;
6687 }
6688
6689 return 0;
6690}
6691
6692static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6693 struct genl_info *info)
6694{
6695 if (info->user_ptr[0])
6696 cfg80211_unlock_rdev(info->user_ptr[0]);
6697 if (info->user_ptr[1])
6698 dev_put(info->user_ptr[1]);
6699 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6700 rtnl_unlock();
6701}
6702
55682965
JB		 6703static struct genl_ops nl80211_ops[] = {
6704 {
6705 .cmd = NL80211_CMD_GET_WIPHY,
6706 .doit = nl80211_get_wiphy,
6707 .dumpit = nl80211_dump_wiphy,
6708 .policy = nl80211_policy,
6709 /* can be retrieved by unprivileged users */
4c476991 6710 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 6711 },
6712 {
6713 .cmd = NL80211_CMD_SET_WIPHY,
6714 .doit = nl80211_set_wiphy,
6715 .policy = nl80211_policy,
6716 .flags = GENL_ADMIN_PERM,
4c476991 6717 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 6718 },
6719 {
6720 .cmd = NL80211_CMD_GET_INTERFACE,
6721 .doit = nl80211_get_interface,
6722 .dumpit = nl80211_dump_interface,
6723 .policy = nl80211_policy,
6724 /* can be retrieved by unprivileged users */
4c476991 6725 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 6726 },
6727 {
6728 .cmd = NL80211_CMD_SET_INTERFACE,
6729 .doit = nl80211_set_interface,
6730 .policy = nl80211_policy,
6731 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6732 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6733 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6734 },
6735 {
6736 .cmd = NL80211_CMD_NEW_INTERFACE,
6737 .doit = nl80211_new_interface,
6738 .policy = nl80211_policy,
6739 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6740 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6741 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6742 },
6743 {
6744 .cmd = NL80211_CMD_DEL_INTERFACE,
6745 .doit = nl80211_del_interface,
6746 .policy = nl80211_policy,
41ade00f 6747 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6748 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6749 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6750 },
6751 {
6752 .cmd = NL80211_CMD_GET_KEY,
6753 .doit = nl80211_get_key,
6754 .policy = nl80211_policy,
6755 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6756 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6757 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6758 },
6759 {
6760 .cmd = NL80211_CMD_SET_KEY,
6761 .doit = nl80211_set_key,
6762 .policy = nl80211_policy,
6763 .flags = GENL_ADMIN_PERM,
41265714 6764 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6765 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6766 },
6767 {
6768 .cmd = NL80211_CMD_NEW_KEY,
6769 .doit = nl80211_new_key,
6770 .policy = nl80211_policy,
6771 .flags = GENL_ADMIN_PERM,
41265714 6772 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6773 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6774 },
6775 {
6776 .cmd = NL80211_CMD_DEL_KEY,
6777 .doit = nl80211_del_key,
6778 .policy = nl80211_policy,
55682965 6779 .flags = GENL_ADMIN_PERM,
41265714 6780 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6781 NL80211_FLAG_NEED_RTNL,
55682965 6782 },
ed1b6cc7
JB		 6783 {
6784 .cmd = NL80211_CMD_SET_BEACON,
6785 .policy = nl80211_policy,
6786 .flags = GENL_ADMIN_PERM,
8860020e 6787 .doit = nl80211_set_beacon,
2b5f8b0b 6788 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6789 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6790 },
6791 {
8860020e 6792 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 6793 .policy = nl80211_policy,
6794 .flags = GENL_ADMIN_PERM,
8860020e 6795 .doit = nl80211_start_ap,
2b5f8b0b 6796 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6797 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6798 },
6799 {
8860020e 6800 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 6801 .policy = nl80211_policy,
6802 .flags = GENL_ADMIN_PERM,
8860020e 6803 .doit = nl80211_stop_ap,
2b5f8b0b 6804 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6805 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 6806 },
5727ef1b
JB		 6807 {
6808 .cmd = NL80211_CMD_GET_STATION,
6809 .doit = nl80211_get_station,
2ec600d6 6810 .dumpit = nl80211_dump_station,
5727ef1b 6811 .policy = nl80211_policy,
4c476991
JB		 6812 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6813 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6814 },
6815 {
6816 .cmd = NL80211_CMD_SET_STATION,
6817 .doit = nl80211_set_station,
6818 .policy = nl80211_policy,
6819 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6820 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6821 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6822 },
6823 {
6824 .cmd = NL80211_CMD_NEW_STATION,
6825 .doit = nl80211_new_station,
6826 .policy = nl80211_policy,
6827 .flags = GENL_ADMIN_PERM,
41265714 6828 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6829 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6830 },
6831 {
6832 .cmd = NL80211_CMD_DEL_STATION,
6833 .doit = nl80211_del_station,
6834 .policy = nl80211_policy,
2ec600d6 6835 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6836 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6837 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6838 },
6839 {
6840 .cmd = NL80211_CMD_GET_MPATH,
6841 .doit = nl80211_get_mpath,
6842 .dumpit = nl80211_dump_mpath,
6843 .policy = nl80211_policy,
6844 .flags = GENL_ADMIN_PERM,
41265714 6845 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6846 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6847 },
6848 {
6849 .cmd = NL80211_CMD_SET_MPATH,
6850 .doit = nl80211_set_mpath,
6851 .policy = nl80211_policy,
6852 .flags = GENL_ADMIN_PERM,
41265714 6853 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6854 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6855 },
6856 {
6857 .cmd = NL80211_CMD_NEW_MPATH,
6858 .doit = nl80211_new_mpath,
6859 .policy = nl80211_policy,
6860 .flags = GENL_ADMIN_PERM,
41265714 6861 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6862 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6863 },
6864 {
6865 .cmd = NL80211_CMD_DEL_MPATH,
6866 .doit = nl80211_del_mpath,
6867 .policy = nl80211_policy,
9f1ba906 6868 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6869 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6870 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 6871 },
6872 {
6873 .cmd = NL80211_CMD_SET_BSS,
6874 .doit = nl80211_set_bss,
6875 .policy = nl80211_policy,
b2e1b302 6876 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6877 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6878 NL80211_FLAG_NEED_RTNL,
b2e1b302 6879 },
f130347c
LR		 6880 {
6881 .cmd = NL80211_CMD_GET_REG,
6882 .doit = nl80211_get_reg,
6883 .policy = nl80211_policy,
6884 /* can be retrieved by unprivileged users */
6885 },
b2e1b302
LR		 6886 {
6887 .cmd = NL80211_CMD_SET_REG,
6888 .doit = nl80211_set_reg,
6889 .policy = nl80211_policy,
6890 .flags = GENL_ADMIN_PERM,
6891 },
6892 {
6893 .cmd = NL80211_CMD_REQ_SET_REG,
6894 .doit = nl80211_req_set_reg,
6895 .policy = nl80211_policy,
93da9cc1 6896 .flags = GENL_ADMIN_PERM,
6897 },
6898 {
24bdd9f4
JC		 6899 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6900 .doit = nl80211_get_mesh_config,
93da9cc1 6901 .policy = nl80211_policy,
6902 /* can be retrieved by unprivileged users */
2b5f8b0b 6903 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6904 NL80211_FLAG_NEED_RTNL,
93da9cc1 6905 },
6906 {
24bdd9f4
JC		 6907 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6908 .doit = nl80211_update_mesh_config,
93da9cc1 6909 .policy = nl80211_policy,
9aed3cc1 6910 .flags = GENL_ADMIN_PERM,
29cbe68c 6911 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6912 NL80211_FLAG_NEED_RTNL,
9aed3cc1 6913 },
2a519311
JB		 6914 {
6915 .cmd = NL80211_CMD_TRIGGER_SCAN,
6916 .doit = nl80211_trigger_scan,
6917 .policy = nl80211_policy,
6918 .flags = GENL_ADMIN_PERM,
41265714 6919 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6920 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 6921 },
6922 {
6923 .cmd = NL80211_CMD_GET_SCAN,
6924 .policy = nl80211_policy,
6925 .dumpit = nl80211_dump_scan,
6926 },
807f8a8c
LC		 6927 {
6928 .cmd = NL80211_CMD_START_SCHED_SCAN,
6929 .doit = nl80211_start_sched_scan,
6930 .policy = nl80211_policy,
6931 .flags = GENL_ADMIN_PERM,
6932 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6933 NL80211_FLAG_NEED_RTNL,
6934 },
6935 {
6936 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6937 .doit = nl80211_stop_sched_scan,
6938 .policy = nl80211_policy,
6939 .flags = GENL_ADMIN_PERM,
6940 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6941 NL80211_FLAG_NEED_RTNL,
6942 },
636a5d36
JM		 6943 {
6944 .cmd = NL80211_CMD_AUTHENTICATE,
6945 .doit = nl80211_authenticate,
6946 .policy = nl80211_policy,
6947 .flags = GENL_ADMIN_PERM,
41265714 6948 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6949 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6950 },
6951 {
6952 .cmd = NL80211_CMD_ASSOCIATE,
6953 .doit = nl80211_associate,
6954 .policy = nl80211_policy,
6955 .flags = GENL_ADMIN_PERM,
41265714 6956 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6957 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6958 },
6959 {
6960 .cmd = NL80211_CMD_DEAUTHENTICATE,
6961 .doit = nl80211_deauthenticate,
6962 .policy = nl80211_policy,
6963 .flags = GENL_ADMIN_PERM,
41265714 6964 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6965 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6966 },
6967 {
6968 .cmd = NL80211_CMD_DISASSOCIATE,
6969 .doit = nl80211_disassociate,
6970 .policy = nl80211_policy,
6971 .flags = GENL_ADMIN_PERM,
41265714 6972 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6973 NL80211_FLAG_NEED_RTNL,
636a5d36 6974 },
04a773ad
JB		 6975 {
6976 .cmd = NL80211_CMD_JOIN_IBSS,
6977 .doit = nl80211_join_ibss,
6978 .policy = nl80211_policy,
6979 .flags = GENL_ADMIN_PERM,
41265714 6980 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6981 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 6982 },
6983 {
6984 .cmd = NL80211_CMD_LEAVE_IBSS,
6985 .doit = nl80211_leave_ibss,
6986 .policy = nl80211_policy,
6987 .flags = GENL_ADMIN_PERM,
41265714 6988 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6989 NL80211_FLAG_NEED_RTNL,
04a773ad 6990 },
aff89a9b
JB		 6991#ifdef CONFIG_NL80211_TESTMODE
6992 {
6993 .cmd = NL80211_CMD_TESTMODE,
6994 .doit = nl80211_testmode_do,
71063f0e 6995 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 6996 .policy = nl80211_policy,
6997 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6998 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6999 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 7000 },
7001#endif
b23aa676
SO		 7002 {
7003 .cmd = NL80211_CMD_CONNECT,
7004 .doit = nl80211_connect,
7005 .policy = nl80211_policy,
7006 .flags = GENL_ADMIN_PERM,
41265714 7007 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7008 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 7009 },
7010 {
7011 .cmd = NL80211_CMD_DISCONNECT,
7012 .doit = nl80211_disconnect,
7013 .policy = nl80211_policy,
7014 .flags = GENL_ADMIN_PERM,
41265714 7015 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7016 NL80211_FLAG_NEED_RTNL,
b23aa676 7017 },
463d0183
JB		 7018 {
7019 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7020 .doit = nl80211_wiphy_netns,
7021 .policy = nl80211_policy,
7022 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7023 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7024 NL80211_FLAG_NEED_RTNL,
463d0183 7025 },
61fa713c
HS		 7026 {
7027 .cmd = NL80211_CMD_GET_SURVEY,
7028 .policy = nl80211_policy,
7029 .dumpit = nl80211_dump_survey,
7030 },
67fbb16b
SO		 7031 {
7032 .cmd = NL80211_CMD_SET_PMKSA,
7033 .doit = nl80211_setdel_pmksa,
7034 .policy = nl80211_policy,
7035 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7036 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7037 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7038 },
7039 {
7040 .cmd = NL80211_CMD_DEL_PMKSA,
7041 .doit = nl80211_setdel_pmksa,
7042 .policy = nl80211_policy,
7043 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7044 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7045 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7046 },
7047 {
7048 .cmd = NL80211_CMD_FLUSH_PMKSA,
7049 .doit = nl80211_flush_pmksa,
7050 .policy = nl80211_policy,
7051 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7052 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7053 NL80211_FLAG_NEED_RTNL,
67fbb16b 7054 },
9588bbd5
JM		 7055 {
7056 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7057 .doit = nl80211_remain_on_channel,
7058 .policy = nl80211_policy,
7059 .flags = GENL_ADMIN_PERM,
41265714 7060 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7061 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 7062 },
7063 {
7064 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7065 .doit = nl80211_cancel_remain_on_channel,
7066 .policy = nl80211_policy,
7067 .flags = GENL_ADMIN_PERM,
41265714 7068 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7069 NL80211_FLAG_NEED_RTNL,
9588bbd5 7070 },
13ae75b1
JM		 7071 {
7072 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7073 .doit = nl80211_set_tx_bitrate_mask,
7074 .policy = nl80211_policy,
7075 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7076 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7077 NL80211_FLAG_NEED_RTNL,
13ae75b1 7078 },
026331c4 7079 {
2e161f78
JB		 7080 .cmd = NL80211_CMD_REGISTER_FRAME,
7081 .doit = nl80211_register_mgmt,
026331c4
JM		 7082 .policy = nl80211_policy,
7083 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7084 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7085 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 7086 },
7087 {
2e161f78
JB		 7088 .cmd = NL80211_CMD_FRAME,
7089 .doit = nl80211_tx_mgmt,
026331c4 7090 .policy = nl80211_policy,
f7ca38df
JB		 7091 .flags = GENL_ADMIN_PERM,
7092 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7093 NL80211_FLAG_NEED_RTNL,
7094 },
7095 {
7096 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7097 .doit = nl80211_tx_mgmt_cancel_wait,
7098 .policy = nl80211_policy,
026331c4 7099 .flags = GENL_ADMIN_PERM,
41265714 7100 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7101 NL80211_FLAG_NEED_RTNL,
026331c4 7102 },
ffb9eb3d
KV		 7103 {
7104 .cmd = NL80211_CMD_SET_POWER_SAVE,
7105 .doit = nl80211_set_power_save,
7106 .policy = nl80211_policy,
7107 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7108 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7109 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 7110 },
7111 {
7112 .cmd = NL80211_CMD_GET_POWER_SAVE,
7113 .doit = nl80211_get_power_save,
7114 .policy = nl80211_policy,
7115 /* can be retrieved by unprivileged users */
4c476991
JB		 7116 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7117 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 7118 },
d6dc1a38
JO		 7119 {
7120 .cmd = NL80211_CMD_SET_CQM,
7121 .doit = nl80211_set_cqm,
7122 .policy = nl80211_policy,
7123 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7124 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7125 NL80211_FLAG_NEED_RTNL,
d6dc1a38 7126 },
f444de05
JB		 7127 {
7128 .cmd = NL80211_CMD_SET_CHANNEL,
7129 .doit = nl80211_set_channel,
7130 .policy = nl80211_policy,
7131 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7132 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7133 NL80211_FLAG_NEED_RTNL,
f444de05 7134 },
e8347eba
BJ		 7135 {
7136 .cmd = NL80211_CMD_SET_WDS_PEER,
7137 .doit = nl80211_set_wds_peer,
7138 .policy = nl80211_policy,
7139 .flags = GENL_ADMIN_PERM,
43b19952
JB		 7140 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7141 NL80211_FLAG_NEED_RTNL,
e8347eba 7142 },
29cbe68c
JB		 7143 {
7144 .cmd = NL80211_CMD_JOIN_MESH,
7145 .doit = nl80211_join_mesh,
7146 .policy = nl80211_policy,
7147 .flags = GENL_ADMIN_PERM,
7148 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7149 NL80211_FLAG_NEED_RTNL,
7150 },
7151 {
7152 .cmd = NL80211_CMD_LEAVE_MESH,
7153 .doit = nl80211_leave_mesh,
7154 .policy = nl80211_policy,
7155 .flags = GENL_ADMIN_PERM,
7156 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7157 NL80211_FLAG_NEED_RTNL,
7158 },
dfb89c56 7159#ifdef CONFIG_PM
ff1b6e69
JB		 7160 {
7161 .cmd = NL80211_CMD_GET_WOWLAN,
7162 .doit = nl80211_get_wowlan,
7163 .policy = nl80211_policy,
7164 /* can be retrieved by unprivileged users */
7165 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7166 NL80211_FLAG_NEED_RTNL,
7167 },
7168 {
7169 .cmd = NL80211_CMD_SET_WOWLAN,
7170 .doit = nl80211_set_wowlan,
7171 .policy = nl80211_policy,
7172 .flags = GENL_ADMIN_PERM,
7173 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7174 NL80211_FLAG_NEED_RTNL,
7175 },
dfb89c56 7176#endif
e5497d76
JB		 7177 {
7178 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7179 .doit = nl80211_set_rekey_data,
7180 .policy = nl80211_policy,
7181 .flags = GENL_ADMIN_PERM,
7182 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7183 NL80211_FLAG_NEED_RTNL,
7184 },
109086ce
AN		 7185 {
7186 .cmd = NL80211_CMD_TDLS_MGMT,
7187 .doit = nl80211_tdls_mgmt,
7188 .policy = nl80211_policy,
7189 .flags = GENL_ADMIN_PERM,
7190 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7191 NL80211_FLAG_NEED_RTNL,
7192 },
7193 {
7194 .cmd = NL80211_CMD_TDLS_OPER,
7195 .doit = nl80211_tdls_oper,
7196 .policy = nl80211_policy,
7197 .flags = GENL_ADMIN_PERM,
7198 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7199 NL80211_FLAG_NEED_RTNL,
7200 },
28946da7
JB		 7201 {
7202 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7203 .doit = nl80211_register_unexpected_frame,
7204 .policy = nl80211_policy,
7205 .flags = GENL_ADMIN_PERM,
7206 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7207 NL80211_FLAG_NEED_RTNL,
7208 },
7f6cf311
JB		 7209 {
7210 .cmd = NL80211_CMD_PROBE_CLIENT,
7211 .doit = nl80211_probe_client,
7212 .policy = nl80211_policy,
7213 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7214 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 7215 NL80211_FLAG_NEED_RTNL,
7216 },
5e760230
JB		 7217 {
7218 .cmd = NL80211_CMD_REGISTER_BEACONS,
7219 .doit = nl80211_register_beacons,
7220 .policy = nl80211_policy,
7221 .flags = GENL_ADMIN_PERM,
7222 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7223 NL80211_FLAG_NEED_RTNL,
7224 },
1d9d9213
SW		 7225 {
7226 .cmd = NL80211_CMD_SET_NOACK_MAP,
7227 .doit = nl80211_set_noack_map,
7228 .policy = nl80211_policy,
7229 .flags = GENL_ADMIN_PERM,
7230 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7231 NL80211_FLAG_NEED_RTNL,
7232 },
7233
55682965 7234};
9588bbd5 7235
6039f6d2
JM		 7236static struct genl_multicast_group nl80211_mlme_mcgrp = {
7237 .name = "mlme",
7238};
55682965
JB		 7239
7240/* multicast groups */
7241static struct genl_multicast_group nl80211_config_mcgrp = {
7242 .name = "config",
7243};
2a519311
JB		 7244static struct genl_multicast_group nl80211_scan_mcgrp = {
7245 .name = "scan",
7246};
73d54c9e
LR		 7247static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7248 .name = "regulatory",
7249};
55682965
JB		 7250
7251/* notification functions */
7252
7253void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7254{
7255 struct sk_buff *msg;
7256
fd2120ca 7257 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 7258 if (!msg)
7259 return;
7260
7261 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7262 nlmsg_free(msg);
7263 return;
7264 }
7265
463d0183
JB		 7266 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7267 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 7268}
7269
362a415d
JB		 7270static int nl80211_add_scan_req(struct sk_buff *msg,
7271 struct cfg80211_registered_device *rdev)
7272{
7273 struct cfg80211_scan_request *req = rdev->scan_req;
7274 struct nlattr *nest;
7275 int i;
7276
667503dd
JB		 7277 ASSERT_RDEV_LOCK(rdev);
7278
362a415d
JB		 7279 if (WARN_ON(!req))
7280 return 0;
7281
7282 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7283 if (!nest)
7284 goto nla_put_failure;
9360ffd1
DM		 7285 for (i = 0; i < req->n_ssids; i++) {
7286 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7287 goto nla_put_failure;
7288 }
362a415d
JB		 7289 nla_nest_end(msg, nest);
7290
7291 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7292 if (!nest)
7293 goto nla_put_failure;
9360ffd1
DM		 7294 for (i = 0; i < req->n_channels; i++) {
7295 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7296 goto nla_put_failure;
7297 }
362a415d
JB		 7298 nla_nest_end(msg, nest);
7299
9360ffd1
DM		 7300 if (req->ie &&
7301 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7302 goto nla_put_failure;
362a415d
JB		 7303
7304 return 0;
7305 nla_put_failure:
7306 return -ENOBUFS;
7307}
7308
a538e2d5
JB		 7309static int nl80211_send_scan_msg(struct sk_buff *msg,
7310 struct cfg80211_registered_device *rdev,
7311 struct net_device *netdev,
7312 u32 pid, u32 seq, int flags,
7313 u32 cmd)
2a519311
JB		 7314{
7315 void *hdr;
7316
7317 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7318 if (!hdr)
7319 return -1;
7320
9360ffd1
DM		 7321 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7322 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7323 goto nla_put_failure;
2a519311 7324
362a415d
JB		 7325 /* ignore errors and send incomplete event anyway */
7326 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 7327
7328 return genlmsg_end(msg, hdr);
7329
7330 nla_put_failure:
7331 genlmsg_cancel(msg, hdr);
7332 return -EMSGSIZE;
7333}
7334
807f8a8c
LC		 7335static int
7336nl80211_send_sched_scan_msg(struct sk_buff *msg,
7337 struct cfg80211_registered_device *rdev,
7338 struct net_device *netdev,
7339 u32 pid, u32 seq, int flags, u32 cmd)
7340{
7341 void *hdr;
7342
7343 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7344 if (!hdr)
7345 return -1;
7346
9360ffd1
DM		 7347 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7348 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7349 goto nla_put_failure;
807f8a8c
LC		 7350
7351 return genlmsg_end(msg, hdr);
7352
7353 nla_put_failure:
7354 genlmsg_cancel(msg, hdr);
7355 return -EMSGSIZE;
7356}
7357
a538e2d5
JB		 7358void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7359 struct net_device *netdev)
7360{
7361 struct sk_buff *msg;
7362
7363 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7364 if (!msg)
7365 return;
7366
7367 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7368 NL80211_CMD_TRIGGER_SCAN) < 0) {
7369 nlmsg_free(msg);
7370 return;
7371 }
7372
463d0183
JB		 7373 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7374 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 7375}
7376
2a519311
JB		 7377void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7378 struct net_device *netdev)
7379{
7380 struct sk_buff *msg;
7381
fd2120ca 7382 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7383 if (!msg)
7384 return;
7385
a538e2d5
JB		 7386 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7387 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 7388 nlmsg_free(msg);
7389 return;
7390 }
7391
463d0183
JB		 7392 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7393 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7394}
7395
7396void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7397 struct net_device *netdev)
7398{
7399 struct sk_buff *msg;
7400
fd2120ca 7401 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7402 if (!msg)
7403 return;
7404
a538e2d5
JB		 7405 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7406 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 7407 nlmsg_free(msg);
7408 return;
7409 }
7410
463d0183
JB		 7411 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7412 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7413}
7414
807f8a8c
LC		 7415void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7416 struct net_device *netdev)
7417{
7418 struct sk_buff *msg;
7419
7420 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7421 if (!msg)
7422 return;
7423
7424 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7425 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7426 nlmsg_free(msg);
7427 return;
7428 }
7429
7430 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7431 nl80211_scan_mcgrp.id, GFP_KERNEL);
7432}
7433
7434void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7435 struct net_device *netdev, u32 cmd)
7436{
7437 struct sk_buff *msg;
7438
7439 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7440 if (!msg)
7441 return;
7442
7443 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7444 nlmsg_free(msg);
7445 return;
7446 }
7447
7448 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7449 nl80211_scan_mcgrp.id, GFP_KERNEL);
7450}
7451
73d54c9e
LR		 7452/*
7453 * This can happen on global regulatory changes or device specific settings
7454 * based on custom world regulatory domains.
7455 */
7456void nl80211_send_reg_change_event(struct regulatory_request *request)
7457{
7458 struct sk_buff *msg;
7459 void *hdr;
7460
fd2120ca 7461 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 7462 if (!msg)
7463 return;
7464
7465 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7466 if (!hdr) {
7467 nlmsg_free(msg);
7468 return;
7469 }
7470
7471 /* Userspace can always count this one always being set */
9360ffd1
DM		 7472 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7473 goto nla_put_failure;
7474
7475 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7476 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7477 NL80211_REGDOM_TYPE_WORLD))
7478 goto nla_put_failure;
7479 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7480 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7481 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7482 goto nla_put_failure;
7483 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7484 request->intersect) {
7485 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7486 NL80211_REGDOM_TYPE_INTERSECTION))
7487 goto nla_put_failure;
7488 } else {
7489 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7490 NL80211_REGDOM_TYPE_COUNTRY) ||
7491 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7492 request->alpha2))
7493 goto nla_put_failure;
7494 }
7495
7496 if (wiphy_idx_valid(request->wiphy_idx) &&
7497 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7498 goto nla_put_failure;
73d54c9e 7499
3b7b72ee 7500 genlmsg_end(msg, hdr);
73d54c9e 7501
bc43b28c 7502 rcu_read_lock();
463d0183 7503 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 7504 GFP_ATOMIC);
7505 rcu_read_unlock();
73d54c9e
LR		 7506
7507 return;
7508
7509nla_put_failure:
7510 genlmsg_cancel(msg, hdr);
7511 nlmsg_free(msg);
7512}
7513
6039f6d2
JM		 7514static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7515 struct net_device *netdev,
7516 const u8 *buf, size_t len,
e6d6e342 7517 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 7518{
7519 struct sk_buff *msg;
7520 void *hdr;
7521
e6d6e342 7522 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 7523 if (!msg)
7524 return;
7525
7526 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7527 if (!hdr) {
7528 nlmsg_free(msg);
7529 return;
7530 }
7531
9360ffd1
DM		 7532 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7533 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7534 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7535 goto nla_put_failure;
6039f6d2 7536
3b7b72ee 7537 genlmsg_end(msg, hdr);
6039f6d2 7538
463d0183
JB		 7539 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7540 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 7541 return;
7542
7543 nla_put_failure:
7544 genlmsg_cancel(msg, hdr);
7545 nlmsg_free(msg);
7546}
7547
7548void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7549 struct net_device *netdev, const u8 *buf,
7550 size_t len, gfp_t gfp)
6039f6d2
JM		 7551{
7552 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7553 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 7554}
7555
7556void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7557 struct net_device *netdev, const u8 *buf,
e6d6e342 7558 size_t len, gfp_t gfp)
6039f6d2 7559{
e6d6e342
JB		 7560 nl80211_send_mlme_event(rdev, netdev, buf, len,
7561 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 7562}
7563
53b46b84 7564void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7565 struct net_device *netdev, const u8 *buf,
7566 size_t len, gfp_t gfp)
6039f6d2
JM		 7567{
7568 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7569 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 7570}
7571
53b46b84
JM		 7572void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7573 struct net_device *netdev, const u8 *buf,
e6d6e342 7574 size_t len, gfp_t gfp)
6039f6d2
JM		 7575{
7576 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7577 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 7578}
7579
cf4e594e
JM		 7580void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7581 struct net_device *netdev, const u8 *buf,
7582 size_t len, gfp_t gfp)
7583{
7584 nl80211_send_mlme_event(rdev, netdev, buf, len,
7585 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7586}
7587
7588void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7589 struct net_device *netdev, const u8 *buf,
7590 size_t len, gfp_t gfp)
7591{
7592 nl80211_send_mlme_event(rdev, netdev, buf, len,
7593 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7594}
7595
1b06bb40
LR		 7596static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7597 struct net_device *netdev, int cmd,
e6d6e342 7598 const u8 *addr, gfp_t gfp)
1965c853
JM		 7599{
7600 struct sk_buff *msg;
7601 void *hdr;
7602
e6d6e342 7603 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 7604 if (!msg)
7605 return;
7606
7607 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7608 if (!hdr) {
7609 nlmsg_free(msg);
7610 return;
7611 }
7612
9360ffd1
DM		 7613 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7614 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7615 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7616 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7617 goto nla_put_failure;
1965c853 7618
3b7b72ee 7619 genlmsg_end(msg, hdr);
1965c853 7620
463d0183
JB		 7621 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7622 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 7623 return;
7624
7625 nla_put_failure:
7626 genlmsg_cancel(msg, hdr);
7627 nlmsg_free(msg);
7628}
7629
7630void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7631 struct net_device *netdev, const u8 *addr,
7632 gfp_t gfp)
1965c853
JM		 7633{
7634 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 7635 addr, gfp);
1965c853
JM		 7636}
7637
7638void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7639 struct net_device *netdev, const u8 *addr,
7640 gfp_t gfp)
1965c853 7641{
e6d6e342
JB		 7642 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7643 addr, gfp);
1965c853
JM		 7644}
7645
b23aa676
SO		 7646void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7647 struct net_device *netdev, const u8 *bssid,
7648 const u8 *req_ie, size_t req_ie_len,
7649 const u8 *resp_ie, size_t resp_ie_len,
7650 u16 status, gfp_t gfp)
7651{
7652 struct sk_buff *msg;
7653 void *hdr;
7654
7655 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7656 if (!msg)
7657 return;
7658
7659 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7660 if (!hdr) {
7661 nlmsg_free(msg);
7662 return;
7663 }
7664
9360ffd1
DM		 7665 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7666 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7667 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
7668 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
7669 (req_ie &&
7670 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7671 (resp_ie &&
7672 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7673 goto nla_put_failure;
b23aa676 7674
3b7b72ee 7675 genlmsg_end(msg, hdr);
b23aa676 7676
463d0183
JB		 7677 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7678 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7679 return;
7680
7681 nla_put_failure:
7682 genlmsg_cancel(msg, hdr);
7683 nlmsg_free(msg);
7684
7685}
7686
7687void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7688 struct net_device *netdev, const u8 *bssid,
7689 const u8 *req_ie, size_t req_ie_len,
7690 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7691{
7692 struct sk_buff *msg;
7693 void *hdr;
7694
7695 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7696 if (!msg)
7697 return;
7698
7699 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7700 if (!hdr) {
7701 nlmsg_free(msg);
7702 return;
7703 }
7704
9360ffd1
DM		 7705 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7706 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7707 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
7708 (req_ie &&
7709 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7710 (resp_ie &&
7711 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7712 goto nla_put_failure;
b23aa676 7713
3b7b72ee 7714 genlmsg_end(msg, hdr);
b23aa676 7715
463d0183
JB		 7716 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7717 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7718 return;
7719
7720 nla_put_failure:
7721 genlmsg_cancel(msg, hdr);
7722 nlmsg_free(msg);
7723
7724}
7725
7726void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7727 struct net_device *netdev, u16 reason,
667503dd 7728 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 7729{
7730 struct sk_buff *msg;
7731 void *hdr;
7732
667503dd 7733 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 7734 if (!msg)
7735 return;
7736
7737 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7738 if (!hdr) {
7739 nlmsg_free(msg);
7740 return;
7741 }
7742
9360ffd1
DM		 7743 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7744 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7745 (from_ap && reason &&
7746 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
7747 (from_ap &&
7748 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
7749 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
7750 goto nla_put_failure;
b23aa676 7751
3b7b72ee 7752 genlmsg_end(msg, hdr);
b23aa676 7753
463d0183
JB		 7754 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7755 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 7756 return;
7757
7758 nla_put_failure:
7759 genlmsg_cancel(msg, hdr);
7760 nlmsg_free(msg);
7761
7762}
7763
04a773ad
JB		 7764void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7765 struct net_device *netdev, const u8 *bssid,
7766 gfp_t gfp)
7767{
7768 struct sk_buff *msg;
7769 void *hdr;
7770
fd2120ca 7771 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 7772 if (!msg)
7773 return;
7774
7775 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7776 if (!hdr) {
7777 nlmsg_free(msg);
7778 return;
7779 }
7780
9360ffd1
DM		 7781 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7782 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7783 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
7784 goto nla_put_failure;
04a773ad 7785
3b7b72ee 7786 genlmsg_end(msg, hdr);
04a773ad 7787
463d0183
JB		 7788 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7789 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 7790 return;
7791
7792 nla_put_failure:
7793 genlmsg_cancel(msg, hdr);
7794 nlmsg_free(msg);
7795}
7796
c93b5e71
JC		 7797void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7798 struct net_device *netdev,
7799 const u8 *macaddr, const u8* ie, u8 ie_len,
7800 gfp_t gfp)
7801{
7802 struct sk_buff *msg;
7803 void *hdr;
7804
7805 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7806 if (!msg)
7807 return;
7808
7809 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7810 if (!hdr) {
7811 nlmsg_free(msg);
7812 return;
7813 }
7814
9360ffd1
DM		 7815 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7816 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7817 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
7818 (ie_len && ie &&
7819 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
7820 goto nla_put_failure;
c93b5e71 7821
3b7b72ee 7822 genlmsg_end(msg, hdr);
c93b5e71
JC		 7823
7824 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7825 nl80211_mlme_mcgrp.id, gfp);
7826 return;
7827
7828 nla_put_failure:
7829 genlmsg_cancel(msg, hdr);
7830 nlmsg_free(msg);
7831}
7832
a3b8b056
JM		 7833void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7834 struct net_device *netdev, const u8 *addr,
7835 enum nl80211_key_type key_type, int key_id,
e6d6e342 7836 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 7837{
7838 struct sk_buff *msg;
7839 void *hdr;
7840
e6d6e342 7841 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 7842 if (!msg)
7843 return;
7844
7845 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7846 if (!hdr) {
7847 nlmsg_free(msg);
7848 return;
7849 }
7850
9360ffd1
DM		 7851 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7852 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7853 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
7854 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
7855 (key_id != -1 &&
7856 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
7857 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
7858 goto nla_put_failure;
a3b8b056 7859
3b7b72ee 7860 genlmsg_end(msg, hdr);
a3b8b056 7861
463d0183
JB		 7862 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7863 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 7864 return;
7865
7866 nla_put_failure:
7867 genlmsg_cancel(msg, hdr);
7868 nlmsg_free(msg);
7869}
7870
6bad8766
LR		 7871void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7872 struct ieee80211_channel *channel_before,
7873 struct ieee80211_channel *channel_after)
7874{
7875 struct sk_buff *msg;
7876 void *hdr;
7877 struct nlattr *nl_freq;
7878
fd2120ca 7879 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 7880 if (!msg)
7881 return;
7882
7883 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7884 if (!hdr) {
7885 nlmsg_free(msg);
7886 return;
7887 }
7888
7889 /*
7890 * Since we are applying the beacon hint to a wiphy we know its
7891 * wiphy_idx is valid
7892 */
9360ffd1
DM		 7893 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
7894 goto nla_put_failure;
6bad8766
LR		 7895
7896 /* Before */
7897 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7898 if (!nl_freq)
7899 goto nla_put_failure;
7900 if (nl80211_msg_put_channel(msg, channel_before))
7901 goto nla_put_failure;
7902 nla_nest_end(msg, nl_freq);
7903
7904 /* After */
7905 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7906 if (!nl_freq)
7907 goto nla_put_failure;
7908 if (nl80211_msg_put_channel(msg, channel_after))
7909 goto nla_put_failure;
7910 nla_nest_end(msg, nl_freq);
7911
3b7b72ee 7912 genlmsg_end(msg, hdr);
6bad8766 7913
463d0183
JB		 7914 rcu_read_lock();
7915 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7916 GFP_ATOMIC);
7917 rcu_read_unlock();
6bad8766
LR		 7918
7919 return;
7920
7921nla_put_failure:
7922 genlmsg_cancel(msg, hdr);
7923 nlmsg_free(msg);
7924}
7925
9588bbd5
JM		 7926static void nl80211_send_remain_on_chan_event(
7927 int cmd, struct cfg80211_registered_device *rdev,
7928 struct net_device *netdev, u64 cookie,
7929 struct ieee80211_channel *chan,
7930 enum nl80211_channel_type channel_type,
7931 unsigned int duration, gfp_t gfp)
7932{
7933 struct sk_buff *msg;
7934 void *hdr;
7935
7936 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7937 if (!msg)
7938 return;
7939
7940 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7941 if (!hdr) {
7942 nlmsg_free(msg);
7943 return;
7944 }
7945
9360ffd1
DM		 7946 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7947 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7948 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
7949 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
7950 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7951 goto nla_put_failure;
9588bbd5 7952
9360ffd1
DM		 7953 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
7954 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
7955 goto nla_put_failure;
9588bbd5 7956
3b7b72ee 7957 genlmsg_end(msg, hdr);
9588bbd5
JM		 7958
7959 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7960 nl80211_mlme_mcgrp.id, gfp);
7961 return;
7962
7963 nla_put_failure:
7964 genlmsg_cancel(msg, hdr);
7965 nlmsg_free(msg);
7966}
7967
7968void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7969 struct net_device *netdev, u64 cookie,
7970 struct ieee80211_channel *chan,
7971 enum nl80211_channel_type channel_type,
7972 unsigned int duration, gfp_t gfp)
7973{
7974 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7975 rdev, netdev, cookie, chan,
7976 channel_type, duration, gfp);
7977}
7978
7979void nl80211_send_remain_on_channel_cancel(
7980 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7981 u64 cookie, struct ieee80211_channel *chan,
7982 enum nl80211_channel_type channel_type, gfp_t gfp)
7983{
7984 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7985 rdev, netdev, cookie, chan,
7986 channel_type, 0, gfp);
7987}
7988
98b62183
JB		 7989void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7990 struct net_device *dev, const u8 *mac_addr,
7991 struct station_info *sinfo, gfp_t gfp)
7992{
7993 struct sk_buff *msg;
7994
7995 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7996 if (!msg)
7997 return;
7998
66266b3a
JL		 7999 if (nl80211_send_station(msg, 0, 0, 0,
8000 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 8001 nlmsg_free(msg);
8002 return;
8003 }
8004
8005 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8006 nl80211_mlme_mcgrp.id, gfp);
8007}
8008
ec15e68b
JM		 8009void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8010 struct net_device *dev, const u8 *mac_addr,
8011 gfp_t gfp)
8012{
8013 struct sk_buff *msg;
8014 void *hdr;
8015
8016 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8017 if (!msg)
8018 return;
8019
8020 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8021 if (!hdr) {
8022 nlmsg_free(msg);
8023 return;
8024 }
8025
9360ffd1
DM		 8026 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8027 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8028 goto nla_put_failure;
ec15e68b 8029
3b7b72ee 8030 genlmsg_end(msg, hdr);
ec15e68b
JM		 8031
8032 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8033 nl80211_mlme_mcgrp.id, gfp);
8034 return;
8035
8036 nla_put_failure:
8037 genlmsg_cancel(msg, hdr);
8038 nlmsg_free(msg);
8039}
8040
b92ab5d8
JB		 8041static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8042 const u8 *addr, gfp_t gfp)
28946da7
JB		 8043{
8044 struct wireless_dev *wdev = dev->ieee80211_ptr;
8045 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8046 struct sk_buff *msg;
8047 void *hdr;
8048 int err;
8049 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
8050
8051 if (!nlpid)
8052 return false;
8053
8054 msg = nlmsg_new(100, gfp);
8055 if (!msg)
8056 return true;
8057
b92ab5d8 8058 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 8059 if (!hdr) {
8060 nlmsg_free(msg);
8061 return true;
8062 }
8063
9360ffd1
DM		 8064 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8065 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8066 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8067 goto nla_put_failure;
28946da7
JB		 8068
8069 err = genlmsg_end(msg, hdr);
8070 if (err < 0) {
8071 nlmsg_free(msg);
8072 return true;
8073 }
8074
8075 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8076 return true;
8077
8078 nla_put_failure:
8079 genlmsg_cancel(msg, hdr);
8080 nlmsg_free(msg);
8081 return true;
8082}
8083
b92ab5d8
JB		 8084bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8085{
8086 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8087 addr, gfp);
8088}
8089
8090bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8091 const u8 *addr, gfp_t gfp)
8092{
8093 return __nl80211_unexpected_frame(dev,
8094 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8095 addr, gfp);
8096}
8097
2e161f78
JB		 8098int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8099 struct net_device *netdev, u32 nlpid,
804483e9
JB		 8100 int freq, int sig_dbm,
8101 const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 8102{
8103 struct sk_buff *msg;
8104 void *hdr;
026331c4
JM		 8105
8106 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8107 if (!msg)
8108 return -ENOMEM;
8109
2e161f78 8110 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 8111 if (!hdr) {
8112 nlmsg_free(msg);
8113 return -ENOMEM;
8114 }
8115
9360ffd1
DM		 8116 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8117 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8118 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8119 (sig_dbm &&
8120 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8121 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8122 goto nla_put_failure;
026331c4 8123
3b7b72ee 8124 genlmsg_end(msg, hdr);
026331c4 8125
3b7b72ee 8126 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
026331c4
JM		 8127
8128 nla_put_failure:
8129 genlmsg_cancel(msg, hdr);
8130 nlmsg_free(msg);
8131 return -ENOBUFS;
8132}
8133
2e161f78
JB		 8134void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8135 struct net_device *netdev, u64 cookie,
8136 const u8 *buf, size_t len, bool ack,
8137 gfp_t gfp)
026331c4
JM		 8138{
8139 struct sk_buff *msg;
8140 void *hdr;
8141
8142 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8143 if (!msg)
8144 return;
8145
2e161f78 8146 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 8147 if (!hdr) {
8148 nlmsg_free(msg);
8149 return;
8150 }
8151
9360ffd1
DM		 8152 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8153 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8154 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8155 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8156 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8157 goto nla_put_failure;
026331c4 8158
3b7b72ee 8159 genlmsg_end(msg, hdr);
026331c4
JM		 8160
8161 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8162 return;
8163
8164 nla_put_failure:
8165 genlmsg_cancel(msg, hdr);
8166 nlmsg_free(msg);
8167}
8168
d6dc1a38
JO		 8169void
8170nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8171 struct net_device *netdev,
8172 enum nl80211_cqm_rssi_threshold_event rssi_event,
8173 gfp_t gfp)
8174{
8175 struct sk_buff *msg;
8176 struct nlattr *pinfoattr;
8177 void *hdr;
8178
8179 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8180 if (!msg)
8181 return;
8182
8183 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8184 if (!hdr) {
8185 nlmsg_free(msg);
8186 return;
8187 }
8188
9360ffd1
DM		 8189 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8190 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8191 goto nla_put_failure;
d6dc1a38
JO		 8192
8193 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8194 if (!pinfoattr)
8195 goto nla_put_failure;
8196
9360ffd1
DM		 8197 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8198 rssi_event))
8199 goto nla_put_failure;
d6dc1a38
JO		 8200
8201 nla_nest_end(msg, pinfoattr);
8202
3b7b72ee 8203 genlmsg_end(msg, hdr);
d6dc1a38
JO		 8204
8205 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8206 nl80211_mlme_mcgrp.id, gfp);
8207 return;
8208
8209 nla_put_failure:
8210 genlmsg_cancel(msg, hdr);
8211 nlmsg_free(msg);
8212}
8213
e5497d76
JB		 8214void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8215 struct net_device *netdev, const u8 *bssid,
8216 const u8 *replay_ctr, gfp_t gfp)
8217{
8218 struct sk_buff *msg;
8219 struct nlattr *rekey_attr;
8220 void *hdr;
8221
8222 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8223 if (!msg)
8224 return;
8225
8226 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8227 if (!hdr) {
8228 nlmsg_free(msg);
8229 return;
8230 }
8231
9360ffd1
DM		 8232 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8233 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8234 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8235 goto nla_put_failure;
e5497d76
JB		 8236
8237 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8238 if (!rekey_attr)
8239 goto nla_put_failure;
8240
9360ffd1
DM		 8241 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8242 NL80211_REPLAY_CTR_LEN, replay_ctr))
8243 goto nla_put_failure;
e5497d76
JB		 8244
8245 nla_nest_end(msg, rekey_attr);
8246
3b7b72ee 8247 genlmsg_end(msg, hdr);
e5497d76
JB		 8248
8249 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8250 nl80211_mlme_mcgrp.id, gfp);
8251 return;
8252
8253 nla_put_failure:
8254 genlmsg_cancel(msg, hdr);
8255 nlmsg_free(msg);
8256}
8257
c9df56b4
JM		 8258void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8259 struct net_device *netdev, int index,
8260 const u8 *bssid, bool preauth, gfp_t gfp)
8261{
8262 struct sk_buff *msg;
8263 struct nlattr *attr;
8264 void *hdr;
8265
8266 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8267 if (!msg)
8268 return;
8269
8270 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8271 if (!hdr) {
8272 nlmsg_free(msg);
8273 return;
8274 }
8275
9360ffd1
DM		 8276 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8277 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8278 goto nla_put_failure;
c9df56b4
JM		 8279
8280 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8281 if (!attr)
8282 goto nla_put_failure;
8283
9360ffd1
DM		 8284 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8285 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8286 (preauth &&
8287 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8288 goto nla_put_failure;
c9df56b4
JM		 8289
8290 nla_nest_end(msg, attr);
8291
3b7b72ee 8292 genlmsg_end(msg, hdr);
c9df56b4
JM		 8293
8294 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8295 nl80211_mlme_mcgrp.id, gfp);
8296 return;
8297
8298 nla_put_failure:
8299 genlmsg_cancel(msg, hdr);
8300 nlmsg_free(msg);
8301}
8302
5314526b
TP		 8303void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8304 struct net_device *netdev, int freq,
8305 enum nl80211_channel_type type, gfp_t gfp)
8306{
8307 struct sk_buff *msg;
8308 void *hdr;
8309
8310 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8311 if (!msg)
8312 return;
8313
8314 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8315 if (!hdr) {
8316 nlmsg_free(msg);
8317 return;
8318 }
8319
7eab0f64
JL		 8320 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8321 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8322 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8323 goto nla_put_failure;
5314526b
TP		 8324
8325 genlmsg_end(msg, hdr);
8326
8327 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8328 nl80211_mlme_mcgrp.id, gfp);
8329 return;
8330
8331 nla_put_failure:
8332 genlmsg_cancel(msg, hdr);
8333 nlmsg_free(msg);
8334}
8335
c063dbf5
JB		 8336void
8337nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8338 struct net_device *netdev, const u8 *peer,
8339 u32 num_packets, gfp_t gfp)
8340{
8341 struct sk_buff *msg;
8342 struct nlattr *pinfoattr;
8343 void *hdr;
8344
8345 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8346 if (!msg)
8347 return;
8348
8349 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8350 if (!hdr) {
8351 nlmsg_free(msg);
8352 return;
8353 }
8354
9360ffd1
DM		 8355 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8356 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8357 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8358 goto nla_put_failure;
c063dbf5
JB		 8359
8360 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8361 if (!pinfoattr)
8362 goto nla_put_failure;
8363
9360ffd1
DM		 8364 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8365 goto nla_put_failure;
c063dbf5
JB		 8366
8367 nla_nest_end(msg, pinfoattr);
8368
3b7b72ee 8369 genlmsg_end(msg, hdr);
c063dbf5
JB		 8370
8371 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8372 nl80211_mlme_mcgrp.id, gfp);
8373 return;
8374
8375 nla_put_failure:
8376 genlmsg_cancel(msg, hdr);
8377 nlmsg_free(msg);
8378}
8379
7f6cf311
JB		 8380void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8381 u64 cookie, bool acked, gfp_t gfp)
8382{
8383 struct wireless_dev *wdev = dev->ieee80211_ptr;
8384 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8385 struct sk_buff *msg;
8386 void *hdr;
8387 int err;
8388
8389 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8390 if (!msg)
8391 return;
8392
8393 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8394 if (!hdr) {
8395 nlmsg_free(msg);
8396 return;
8397 }
8398
9360ffd1
DM		 8399 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8400 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8401 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8402 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8403 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8404 goto nla_put_failure;
7f6cf311
JB		 8405
8406 err = genlmsg_end(msg, hdr);
8407 if (err < 0) {
8408 nlmsg_free(msg);
8409 return;
8410 }
8411
8412 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8413 nl80211_mlme_mcgrp.id, gfp);
8414 return;
8415
8416 nla_put_failure:
8417 genlmsg_cancel(msg, hdr);
8418 nlmsg_free(msg);
8419}
8420EXPORT_SYMBOL(cfg80211_probe_status);
8421
5e760230
JB		 8422void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8423 const u8 *frame, size_t len,
804483e9 8424 int freq, int sig_dbm, gfp_t gfp)
5e760230
JB		 8425{
8426 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8427 struct sk_buff *msg;
8428 void *hdr;
8429 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8430
8431 if (!nlpid)
8432 return;
8433
8434 msg = nlmsg_new(len + 100, gfp);
8435 if (!msg)
8436 return;
8437
8438 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8439 if (!hdr) {
8440 nlmsg_free(msg);
8441 return;
8442 }
8443
9360ffd1
DM		 8444 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8445 (freq &&
8446 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8447 (sig_dbm &&
8448 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8449 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8450 goto nla_put_failure;
5e760230
JB		 8451
8452 genlmsg_end(msg, hdr);
8453
8454 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8455 return;
8456
8457 nla_put_failure:
8458 genlmsg_cancel(msg, hdr);
8459 nlmsg_free(msg);
8460}
8461EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8462
026331c4
JM		 8463static int nl80211_netlink_notify(struct notifier_block * nb,
8464 unsigned long state,
8465 void *_notify)
8466{
8467 struct netlink_notify *notify = _notify;
8468 struct cfg80211_registered_device *rdev;
8469 struct wireless_dev *wdev;
8470
8471 if (state != NETLINK_URELEASE)
8472 return NOTIFY_DONE;
8473
8474 rcu_read_lock();
8475
5e760230 8476 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
026331c4 8477 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 8478 cfg80211_mlme_unregister_socket(wdev, notify->pid);
5e760230
JB		 8479 if (rdev->ap_beacons_nlpid == notify->pid)
8480 rdev->ap_beacons_nlpid = 0;
8481 }
026331c4
JM		 8482
8483 rcu_read_unlock();
8484
8485 return NOTIFY_DONE;
8486}
8487
8488static struct notifier_block nl80211_netlink_notifier = {
8489 .notifier_call = nl80211_netlink_notify,
8490};
8491
55682965
JB		 8492/* initialisation/exit functions */
8493
8494int nl80211_init(void)
8495{
0d63cbb5 8496 int err;
55682965 8497
0d63cbb5
MM		 8498 err = genl_register_family_with_ops(&nl80211_fam,
8499 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 8500 if (err)
8501 return err;
8502
55682965
JB		 8503 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8504 if (err)
8505 goto err_out;
8506
2a519311
JB		 8507 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8508 if (err)
8509 goto err_out;
8510
73d54c9e
LR		 8511 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8512 if (err)
8513 goto err_out;
8514
6039f6d2
JM		 8515 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8516 if (err)
8517 goto err_out;
8518
aff89a9b
JB		 8519#ifdef CONFIG_NL80211_TESTMODE
8520 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8521 if (err)
8522 goto err_out;
8523#endif
8524
026331c4
JM		 8525 err = netlink_register_notifier(&nl80211_netlink_notifier);
8526 if (err)
8527 goto err_out;
8528
55682965
JB		 8529 return 0;
8530 err_out:
8531 genl_unregister_family(&nl80211_fam);
8532 return err;
8533}
8534
8535void nl80211_exit(void)
8536{
026331c4 8537 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 8538 genl_unregister_family(&nl80211_fam);
8539}
Linux kernel - Deliverables
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