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cfg80211: Add option to specify previous BSSID for Connect command
[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>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
0c9ca11b 6 * Copyright 2015-2016 Intel Deutschland GmbH
55682965
JB		 7 */
8
9#include <linux/if.h>
10#include <linux/module.h>
11#include <linux/err.h>
5a0e3ad6 12#include <linux/slab.h>
55682965
JB		 13#include <linux/list.h>
14#include <linux/if_ether.h>
15#include <linux/ieee80211.h>
16#include <linux/nl80211.h>
17#include <linux/rtnetlink.h>
18#include <linux/netlink.h>
2a519311 19#include <linux/etherdevice.h>
463d0183 20#include <net/net_namespace.h>
55682965
JB		 21#include <net/genetlink.h>
22#include <net/cfg80211.h>
463d0183 23#include <net/sock.h>
2a0e047e 24#include <net/inet_connection_sock.h>
55682965
JB		 25#include "core.h"
26#include "nl80211.h"
b2e1b302 27#include "reg.h"
e35e4d28 28#include "rdev-ops.h"
55682965 29
5fb628e9
JM		 30static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
31 struct genl_info *info,
32 struct cfg80211_crypto_settings *settings,
33 int cipher_limit);
34
f84f771d 35static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 36 struct genl_info *info);
f84f771d 37static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 38 struct genl_info *info);
39
55682965
JB		 40/* the netlink family */
41static struct genl_family nl80211_fam = {
fb4e1568
MH		 42 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
43 .name = NL80211_GENL_NAME, /* have users key off the name instead */
44 .hdrsize = 0, /* no private header */
45 .version = 1, /* no particular meaning now */
55682965 46 .maxattr = NL80211_ATTR_MAX,
463d0183 47 .netnsok = true,
4c476991
JB		 48 .pre_doit = nl80211_pre_doit,
49 .post_doit = nl80211_post_doit,
55682965
JB		 50};
51
2a94fe48
JB		 52/* multicast groups */
53enum nl80211_multicast_groups {
54 NL80211_MCGRP_CONFIG,
55 NL80211_MCGRP_SCAN,
56 NL80211_MCGRP_REGULATORY,
57 NL80211_MCGRP_MLME,
567ffc35 58 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 59 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
60};
61
62static const struct genl_multicast_group nl80211_mcgrps[] = {
71b836ec
JB		 63 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
64 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
65 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
66 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
67 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
2a94fe48 68#ifdef CONFIG_NL80211_TESTMODE
71b836ec 69 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
2a94fe48
JB		 70#endif
71};
72
89a54e48
JB		 73/* returns ERR_PTR values */
74static struct wireless_dev *
75__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 76{
89a54e48
JB		 77 struct cfg80211_registered_device *rdev;
78 struct wireless_dev *result = NULL;
79 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
80 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
81 u64 wdev_id;
82 int wiphy_idx = -1;
83 int ifidx = -1;
55682965 84
5fe231e8 85 ASSERT_RTNL();
55682965 86
89a54e48
JB		 87 if (!have_ifidx && !have_wdev_id)
88 return ERR_PTR(-EINVAL);
55682965 89
89a54e48
JB		 90 if (have_ifidx)
91 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
92 if (have_wdev_id) {
93 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
94 wiphy_idx = wdev_id >> 32;
55682965
JB		 95 }
96
89a54e48
JB		 97 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
98 struct wireless_dev *wdev;
99
100 if (wiphy_net(&rdev->wiphy) != netns)
101 continue;
102
103 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
104 continue;
105
89a54e48
JB		 106 list_for_each_entry(wdev, &rdev->wdev_list, list) {
107 if (have_ifidx && wdev->netdev &&
108 wdev->netdev->ifindex == ifidx) {
109 result = wdev;
110 break;
111 }
112 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
113 result = wdev;
114 break;
115 }
116 }
89a54e48
JB		 117
118 if (result)
119 break;
120 }
121
122 if (result)
123 return result;
124 return ERR_PTR(-ENODEV);
55682965
JB		 125}
126
a9455408 127static struct cfg80211_registered_device *
878d9ec7 128__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 129{
7fee4778
JB		 130 struct cfg80211_registered_device *rdev = NULL, *tmp;
131 struct net_device *netdev;
a9455408 132
5fe231e8 133 ASSERT_RTNL();
a9455408 134
878d9ec7 135 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 136 !attrs[NL80211_ATTR_IFINDEX] &&
137 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 138 return ERR_PTR(-EINVAL);
139
878d9ec7 140 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 141 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 142 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 143
89a54e48
JB		 144 if (attrs[NL80211_ATTR_WDEV]) {
145 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
146 struct wireless_dev *wdev;
147 bool found = false;
148
149 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
150 if (tmp) {
151 /* make sure wdev exists */
89a54e48
JB		 152 list_for_each_entry(wdev, &tmp->wdev_list, list) {
153 if (wdev->identifier != (u32)wdev_id)
154 continue;
155 found = true;
156 break;
157 }
89a54e48
JB		 158
159 if (!found)
160 tmp = NULL;
161
162 if (rdev && tmp != rdev)
163 return ERR_PTR(-EINVAL);
164 rdev = tmp;
165 }
166 }
167
878d9ec7
JB		 168 if (attrs[NL80211_ATTR_IFINDEX]) {
169 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7f2b8562 170 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 171 if (netdev) {
172 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 173 tmp = wiphy_to_rdev(
174 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 175 else
176 tmp = NULL;
177
7fee4778
JB		 178 /* not wireless device -- return error */
179 if (!tmp)
180 return ERR_PTR(-EINVAL);
181
182 /* mismatch -- return error */
183 if (rdev && tmp != rdev)
184 return ERR_PTR(-EINVAL);
185
186 rdev = tmp;
a9455408 187 }
a9455408 188 }
a9455408 189
4f7eff10
JB		 190 if (!rdev)
191 return ERR_PTR(-ENODEV);
a9455408 192
4f7eff10
JB		 193 if (netns != wiphy_net(&rdev->wiphy))
194 return ERR_PTR(-ENODEV);
195
196 return rdev;
a9455408
JB		 197}
198
199/*
200 * This function returns a pointer to the driver
201 * that the genl_info item that is passed refers to.
a9455408
JB		 202 *
203 * The result of this can be a PTR_ERR and hence must
204 * be checked with IS_ERR() for errors.
205 */
206static struct cfg80211_registered_device *
4f7eff10 207cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 208{
5fe231e8 209 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 210}
211
55682965 212/* policy for the attributes */
8cd4d456 213static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 214 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
215 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 216 .len = 20-1 },
31888487 217 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 218
72bdcf34 219 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 220 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 221 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
222 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
223 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
224
b9a5f8ca
JM		 225 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
226 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
227 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
228 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 229 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 230 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 231
232 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
233 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
234 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 235
e007b857
EP		 236 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
237 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 238
b9454e83 239 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 240 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
241 .len = WLAN_MAX_KEY_LEN },
242 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
243 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
244 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 245 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 246 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 247
248 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
249 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
250 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
251 .len = IEEE80211_MAX_DATA_LEN },
252 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
253 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 254 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
255 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
256 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
257 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
258 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 259 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 260 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 261 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 262 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 263 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 264 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 265
b2e1b302
LR		 266 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
267 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
268
9f1ba906
JM		 269 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
270 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
271 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 272 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
273 .len = NL80211_MAX_SUPP_RATES },
50b12f59 274 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 275
24bdd9f4 276 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 277 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 278
6c739419 279 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 280
281 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
282 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
283 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 284 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
285 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 286
287 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
288 .len = IEEE80211_MAX_SSID_LEN },
289 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
290 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 291 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 292 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 293 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 294 [NL80211_ATTR_STA_FLAGS2] = {
295 .len = sizeof(struct nl80211_sta_flag_update),
296 },
3f77316c 297 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 298 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
299 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 300 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
301 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
302 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 303 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 304 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 305 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
306 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 307 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
308 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 309 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 310 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
311 .len = IEEE80211_MAX_DATA_LEN },
312 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 313 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 314 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 315 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 316 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 317 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
318 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 319 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 320 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
321 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 322 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 323 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 324 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 325 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 326 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 327 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 328 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 329 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 330 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 331 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
332 .len = IEEE80211_MAX_DATA_LEN },
333 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
334 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 335 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 336 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 337 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 338 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
341 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
342 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 343 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 344 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 345 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
346 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 347 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 348 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
349 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
350 .len = NL80211_HT_CAPABILITY_LEN
351 },
1d9d9213 352 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 353 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 354 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 355 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 356 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 357 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 358 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 359 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 360 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
361 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 362 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
363 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 364 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
365 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 366 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 367 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
368 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
369 .len = NL80211_VHT_CAPABILITY_LEN,
370 },
355199e0
JM		 371 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
372 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
373 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 374 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 375 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
376 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
377 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 378 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
379 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 380 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
381 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 382 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 383 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 384 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
386 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 387 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
388 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 389 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
390 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 391 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
18e5ca65 392 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 393 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 394 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 395 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
396 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
397 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 398 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 399 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 400 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
4b681c82 401 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
9c748934 402 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
05050753 403 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
34d50519 404 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
38de03d2 405 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
17b94247 406 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
55682965
JB		 407};
408
e31b8213 409/* policy for the key attributes */
b54452b0 410static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 411 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 412 [NL80211_KEY_IDX] = { .type = NLA_U8 },
413 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 414 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 415 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
416 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 417 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 418 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
419};
420
421/* policy for the key default flags */
422static const struct nla_policy
423nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
424 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
425 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 426};
427
ff1b6e69
JB		 428/* policy for WoWLAN attributes */
429static const struct nla_policy
430nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
431 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
432 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
433 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
434 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 435 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
436 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
437 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
438 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 439 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 440 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 441};
442
443static const struct nla_policy
444nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
445 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
446 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
447 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
448 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
449 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
450 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
451 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
452 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
453 },
454 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
455 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
456 },
457 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
458 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
459 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 460};
461
be29b99a
AK		 462/* policy for coalesce rule attributes */
463static const struct nla_policy
464nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
465 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
466 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
467 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
468};
469
e5497d76
JB		 470/* policy for GTK rekey offload attributes */
471static const struct nla_policy
472nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
473 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
474 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
475 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
476};
477
a1f1c21c
LC		 478static const struct nla_policy
479nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 480 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 481 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 482 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 483};
484
3b06d277
AS		 485static const struct nla_policy
486nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
487 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
488 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
489};
490
38de03d2
AS		 491static const struct nla_policy
492nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
493 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
494 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
495 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
496 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
497 },
498};
499
97990a06
JB		 500static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
501 struct netlink_callback *cb,
502 struct cfg80211_registered_device **rdev,
503 struct wireless_dev **wdev)
a043897a 504{
97990a06 505 int err;
a043897a 506
97990a06 507 rtnl_lock();
a043897a 508
97990a06
JB		 509 if (!cb->args[0]) {
510 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
511 nl80211_fam.attrbuf, nl80211_fam.maxattr,
512 nl80211_policy);
513 if (err)
514 goto out_unlock;
67748893 515
97990a06
JB		 516 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
517 nl80211_fam.attrbuf);
518 if (IS_ERR(*wdev)) {
519 err = PTR_ERR(*wdev);
520 goto out_unlock;
521 }
f26cbf40 522 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 523 /* 0 is the first index - add 1 to parse only once */
524 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 525 cb->args[1] = (*wdev)->identifier;
526 } else {
c319d50b
JB		 527 /* subtract the 1 again here */
528 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 529 struct wireless_dev *tmp;
67748893 530
97990a06
JB		 531 if (!wiphy) {
532 err = -ENODEV;
533 goto out_unlock;
534 }
f26cbf40 535 *rdev = wiphy_to_rdev(wiphy);
97990a06 536 *wdev = NULL;
67748893 537
97990a06
JB		 538 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
539 if (tmp->identifier == cb->args[1]) {
540 *wdev = tmp;
541 break;
542 }
543 }
67748893 544
97990a06
JB		 545 if (!*wdev) {
546 err = -ENODEV;
547 goto out_unlock;
548 }
67748893
JB		 549 }
550
67748893 551 return 0;
97990a06 552 out_unlock:
67748893
JB		 553 rtnl_unlock();
554 return err;
555}
556
97990a06 557static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 558{
67748893
JB		 559 rtnl_unlock();
560}
561
f4a11bb0
JB		 562/* IE validation */
563static bool is_valid_ie_attr(const struct nlattr *attr)
564{
565 const u8 *pos;
566 int len;
567
568 if (!attr)
569 return true;
570
571 pos = nla_data(attr);
572 len = nla_len(attr);
573
574 while (len) {
575 u8 elemlen;
576
577 if (len < 2)
578 return false;
579 len -= 2;
580
581 elemlen = pos[1];
582 if (elemlen > len)
583 return false;
584
585 len -= elemlen;
586 pos += 2 + elemlen;
587 }
588
589 return true;
590}
591
55682965 592/* message building helper */
15e47304 593static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 594 int flags, u8 cmd)
595{
596 /* since there is no private header just add the generic one */
15e47304 597 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 598}
599
5dab3b8a 600static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 601 struct ieee80211_channel *chan,
602 bool large)
5dab3b8a 603{
ea077c1c
RL		 604 /* Some channels must be completely excluded from the
605 * list to protect old user-space tools from breaking
606 */
607 if (!large && chan->flags &
608 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
609 return 0;
610
9360ffd1
DM		 611 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
612 chan->center_freq))
613 goto nla_put_failure;
5dab3b8a 614
9360ffd1
DM		 615 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
616 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
617 goto nla_put_failure;
8fe02e16
LR		 618 if (chan->flags & IEEE80211_CHAN_NO_IR) {
619 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
620 goto nla_put_failure;
621 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
622 goto nla_put_failure;
623 }
cdc89b97
JB		 624 if (chan->flags & IEEE80211_CHAN_RADAR) {
625 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
626 goto nla_put_failure;
627 if (large) {
628 u32 time;
629
630 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
631
632 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
633 chan->dfs_state))
634 goto nla_put_failure;
635 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
636 time))
637 goto nla_put_failure;
089027e5
JD		 638 if (nla_put_u32(msg,
639 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
640 chan->dfs_cac_ms))
641 goto nla_put_failure;
cdc89b97
JB		 642 }
643 }
5dab3b8a 644
fe1abafd
JB		 645 if (large) {
646 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
647 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
648 goto nla_put_failure;
649 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
650 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
651 goto nla_put_failure;
652 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
653 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
654 goto nla_put_failure;
655 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
656 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
657 goto nla_put_failure;
570dbde1
DS		 658 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
659 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
660 goto nla_put_failure;
06f207fc
AN		 661 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
662 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 663 goto nla_put_failure;
ea077c1c
RL		 664 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
665 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
666 goto nla_put_failure;
667 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
668 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
669 goto nla_put_failure;
fe1abafd
JB		 670 }
671
9360ffd1
DM		 672 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
673 DBM_TO_MBM(chan->max_power)))
674 goto nla_put_failure;
5dab3b8a
LR		 675
676 return 0;
677
678 nla_put_failure:
679 return -ENOBUFS;
680}
681
55682965
JB		 682/* netlink command implementations */
683
b9454e83
JB		 684struct key_parse {
685 struct key_params p;
686 int idx;
e31b8213 687 int type;
b9454e83 688 bool def, defmgmt;
dbd2fd65 689 bool def_uni, def_multi;
b9454e83
JB		 690};
691
692static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
693{
694 struct nlattr *tb[NL80211_KEY_MAX + 1];
695 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
696 nl80211_key_policy);
697 if (err)
698 return err;
699
700 k->def = !!tb[NL80211_KEY_DEFAULT];
701 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
702
dbd2fd65
JB		 703 if (k->def) {
704 k->def_uni = true;
705 k->def_multi = true;
706 }
707 if (k->defmgmt)
708 k->def_multi = true;
709
b9454e83
JB		 710 if (tb[NL80211_KEY_IDX])
711 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
712
713 if (tb[NL80211_KEY_DATA]) {
714 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
715 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
716 }
717
718 if (tb[NL80211_KEY_SEQ]) {
719 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
720 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
721 }
722
723 if (tb[NL80211_KEY_CIPHER])
724 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
725
e31b8213
JB		 726 if (tb[NL80211_KEY_TYPE]) {
727 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
728 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
729 return -EINVAL;
730 }
731
dbd2fd65
JB		 732 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
733 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 734 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
735 tb[NL80211_KEY_DEFAULT_TYPES],
736 nl80211_key_default_policy);
dbd2fd65
JB		 737 if (err)
738 return err;
739
740 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
741 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
742 }
743
b9454e83
JB		 744 return 0;
745}
746
747static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
748{
749 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
750 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
751 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
752 }
753
754 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
755 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
756 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
757 }
758
759 if (info->attrs[NL80211_ATTR_KEY_IDX])
760 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
761
762 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
763 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
764
765 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
766 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
767
dbd2fd65
JB		 768 if (k->def) {
769 k->def_uni = true;
770 k->def_multi = true;
771 }
772 if (k->defmgmt)
773 k->def_multi = true;
774
e31b8213
JB		 775 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
776 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
777 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
778 return -EINVAL;
779 }
780
dbd2fd65
JB		 781 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
782 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
783 int err = nla_parse_nested(
784 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
785 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
786 nl80211_key_default_policy);
787 if (err)
788 return err;
789
790 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
791 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
792 }
793
b9454e83
JB		 794 return 0;
795}
796
797static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
798{
799 int err;
800
801 memset(k, 0, sizeof(*k));
802 k->idx = -1;
e31b8213 803 k->type = -1;
b9454e83
JB		 804
805 if (info->attrs[NL80211_ATTR_KEY])
806 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
807 else
808 err = nl80211_parse_key_old(info, k);
809
810 if (err)
811 return err;
812
813 if (k->def && k->defmgmt)
814 return -EINVAL;
815
dbd2fd65
JB		 816 if (k->defmgmt) {
817 if (k->def_uni || !k->def_multi)
818 return -EINVAL;
819 }
820
b9454e83
JB		 821 if (k->idx != -1) {
822 if (k->defmgmt) {
823 if (k->idx < 4 || k->idx > 5)
824 return -EINVAL;
825 } else if (k->def) {
826 if (k->idx < 0 || k->idx > 3)
827 return -EINVAL;
828 } else {
829 if (k->idx < 0 || k->idx > 5)
830 return -EINVAL;
831 }
832 }
833
834 return 0;
835}
836
fffd0934
JB		 837static struct cfg80211_cached_keys *
838nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 839 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 840{
841 struct key_parse parse;
842 struct nlattr *key;
843 struct cfg80211_cached_keys *result;
844 int rem, err, def = 0;
845
846 result = kzalloc(sizeof(*result), GFP_KERNEL);
847 if (!result)
848 return ERR_PTR(-ENOMEM);
849
850 result->def = -1;
851 result->defmgmt = -1;
852
853 nla_for_each_nested(key, keys, rem) {
854 memset(&parse, 0, sizeof(parse));
855 parse.idx = -1;
856
857 err = nl80211_parse_key_new(key, &parse);
858 if (err)
859 goto error;
860 err = -EINVAL;
861 if (!parse.p.key)
862 goto error;
863 if (parse.idx < 0 || parse.idx > 4)
864 goto error;
865 if (parse.def) {
866 if (def)
867 goto error;
868 def = 1;
869 result->def = parse.idx;
dbd2fd65
JB		 870 if (!parse.def_uni || !parse.def_multi)
871 goto error;
fffd0934
JB		 872 } else if (parse.defmgmt)
873 goto error;
874 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 875 parse.idx, false, NULL);
fffd0934
JB		 876 if (err)
877 goto error;
878 result->params[parse.idx].cipher = parse.p.cipher;
879 result->params[parse.idx].key_len = parse.p.key_len;
880 result->params[parse.idx].key = result->data[parse.idx];
881 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 882
883 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
884 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
885 if (no_ht)
886 *no_ht = true;
887 }
fffd0934
JB		 888 }
889
890 return result;
891 error:
892 kfree(result);
893 return ERR_PTR(err);
894}
895
896static int nl80211_key_allowed(struct wireless_dev *wdev)
897{
898 ASSERT_WDEV_LOCK(wdev);
899
fffd0934
JB		 900 switch (wdev->iftype) {
901 case NL80211_IFTYPE_AP:
902 case NL80211_IFTYPE_AP_VLAN:
074ac8df 903 case NL80211_IFTYPE_P2P_GO:
ff973af7 904 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 905 break;
906 case NL80211_IFTYPE_ADHOC:
fffd0934 907 case NL80211_IFTYPE_STATION:
074ac8df 908 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 909 if (!wdev->current_bss)
fffd0934
JB		 910 return -ENOLINK;
911 break;
de4fcbad 912 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 913 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 914 case NL80211_IFTYPE_MONITOR:
915 case NL80211_IFTYPE_P2P_DEVICE:
916 case NL80211_IFTYPE_WDS:
917 case NUM_NL80211_IFTYPES:
fffd0934
JB		 918 return -EINVAL;
919 }
920
921 return 0;
922}
923
664834de
JM		 924static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
925 struct nlattr *tb)
926{
927 struct ieee80211_channel *chan;
928
929 if (tb == NULL)
930 return NULL;
931 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
932 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
933 return NULL;
934 return chan;
935}
936
7527a782
JB		 937static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
938{
939 struct nlattr *nl_modes = nla_nest_start(msg, attr);
940 int i;
941
942 if (!nl_modes)
943 goto nla_put_failure;
944
945 i = 0;
946 while (ifmodes) {
9360ffd1
DM		 947 if ((ifmodes & 1) && nla_put_flag(msg, i))
948 goto nla_put_failure;
7527a782
JB		 949 ifmodes >>= 1;
950 i++;
951 }
952
953 nla_nest_end(msg, nl_modes);
954 return 0;
955
956nla_put_failure:
957 return -ENOBUFS;
958}
959
960static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 961 struct sk_buff *msg,
962 bool large)
7527a782
JB		 963{
964 struct nlattr *nl_combis;
965 int i, j;
966
967 nl_combis = nla_nest_start(msg,
968 NL80211_ATTR_INTERFACE_COMBINATIONS);
969 if (!nl_combis)
970 goto nla_put_failure;
971
972 for (i = 0; i < wiphy->n_iface_combinations; i++) {
973 const struct ieee80211_iface_combination *c;
974 struct nlattr *nl_combi, *nl_limits;
975
976 c = &wiphy->iface_combinations[i];
977
978 nl_combi = nla_nest_start(msg, i + 1);
979 if (!nl_combi)
980 goto nla_put_failure;
981
982 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
983 if (!nl_limits)
984 goto nla_put_failure;
985
986 for (j = 0; j < c->n_limits; j++) {
987 struct nlattr *nl_limit;
988
989 nl_limit = nla_nest_start(msg, j + 1);
990 if (!nl_limit)
991 goto nla_put_failure;
9360ffd1
DM		 992 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
993 c->limits[j].max))
994 goto nla_put_failure;
7527a782
JB		 995 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
996 c->limits[j].types))
997 goto nla_put_failure;
998 nla_nest_end(msg, nl_limit);
999 }
1000
1001 nla_nest_end(msg, nl_limits);
1002
9360ffd1
DM		 1003 if (c->beacon_int_infra_match &&
1004 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1005 goto nla_put_failure;
1006 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1007 c->num_different_channels) ||
1008 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1009 c->max_interfaces))
1010 goto nla_put_failure;
cdc89b97 1011 if (large &&
8c48b50a
FF		 1012 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1013 c->radar_detect_widths) ||
1014 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1015 c->radar_detect_regions)))
cdc89b97 1016 goto nla_put_failure;
7527a782
JB		 1017
1018 nla_nest_end(msg, nl_combi);
1019 }
1020
1021 nla_nest_end(msg, nl_combis);
1022
1023 return 0;
1024nla_put_failure:
1025 return -ENOBUFS;
1026}
1027
3713b4e3 1028#ifdef CONFIG_PM
b56cf720
JB		 1029static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1030 struct sk_buff *msg)
1031{
964dc9e2 1032 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1033 struct nlattr *nl_tcp;
1034
1035 if (!tcp)
1036 return 0;
1037
1038 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1039 if (!nl_tcp)
1040 return -ENOBUFS;
1041
1042 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1043 tcp->data_payload_max))
1044 return -ENOBUFS;
1045
1046 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1047 tcp->data_payload_max))
1048 return -ENOBUFS;
1049
1050 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1051 return -ENOBUFS;
1052
1053 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1054 sizeof(*tcp->tok), tcp->tok))
1055 return -ENOBUFS;
1056
1057 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1058 tcp->data_interval_max))
1059 return -ENOBUFS;
1060
1061 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1062 tcp->wake_payload_max))
1063 return -ENOBUFS;
1064
1065 nla_nest_end(msg, nl_tcp);
1066 return 0;
1067}
1068
3713b4e3 1069static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1070 struct cfg80211_registered_device *rdev,
b56cf720 1071 bool large)
55682965 1072{
3713b4e3 1073 struct nlattr *nl_wowlan;
55682965 1074
1b8ec87a 1075 if (!rdev->wiphy.wowlan)
3713b4e3 1076 return 0;
55682965 1077
3713b4e3
JB		 1078 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1079 if (!nl_wowlan)
1080 return -ENOBUFS;
9360ffd1 1081
1b8ec87a 1082 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1083 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1084 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1085 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1086 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1087 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1088 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1089 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1090 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1091 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1092 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1093 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1094 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1095 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1096 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1097 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1098 return -ENOBUFS;
9360ffd1 1099
1b8ec87a 1100 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1101 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1102 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1103 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1104 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1105 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1106 };
9360ffd1 1107
3713b4e3
JB		 1108 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1109 sizeof(pat), &pat))
1110 return -ENOBUFS;
1111 }
9360ffd1 1112
75453ccb
LC		 1113 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1114 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1115 rdev->wiphy.wowlan->max_nd_match_sets))
1116 return -ENOBUFS;
1117
1b8ec87a 1118 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1119 return -ENOBUFS;
1120
3713b4e3 1121 nla_nest_end(msg, nl_wowlan);
9360ffd1 1122
3713b4e3
JB		 1123 return 0;
1124}
1125#endif
9360ffd1 1126
be29b99a 1127static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1128 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1129{
1130 struct nl80211_coalesce_rule_support rule;
1131
1b8ec87a 1132 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1133 return 0;
1134
1b8ec87a
ZG		 1135 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1136 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1137 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1138 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1139 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1140 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1141
1142 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1143 return -ENOBUFS;
1144
1145 return 0;
1146}
1147
3713b4e3
JB		 1148static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1149 struct ieee80211_supported_band *sband)
1150{
1151 struct nlattr *nl_rates, *nl_rate;
1152 struct ieee80211_rate *rate;
1153 int i;
87bbbe22 1154
3713b4e3
JB		 1155 /* add HT info */
1156 if (sband->ht_cap.ht_supported &&
1157 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1158 sizeof(sband->ht_cap.mcs),
1159 &sband->ht_cap.mcs) ||
1160 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1161 sband->ht_cap.cap) ||
1162 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1163 sband->ht_cap.ampdu_factor) ||
1164 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1165 sband->ht_cap.ampdu_density)))
1166 return -ENOBUFS;
afe0cbf8 1167
3713b4e3
JB		 1168 /* add VHT info */
1169 if (sband->vht_cap.vht_supported &&
1170 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1171 sizeof(sband->vht_cap.vht_mcs),
1172 &sband->vht_cap.vht_mcs) ||
1173 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1174 sband->vht_cap.cap)))
1175 return -ENOBUFS;
f59ac048 1176
3713b4e3
JB		 1177 /* add bitrates */
1178 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1179 if (!nl_rates)
1180 return -ENOBUFS;
ee688b00 1181
3713b4e3
JB		 1182 for (i = 0; i < sband->n_bitrates; i++) {
1183 nl_rate = nla_nest_start(msg, i);
1184 if (!nl_rate)
1185 return -ENOBUFS;
ee688b00 1186
3713b4e3
JB		 1187 rate = &sband->bitrates[i];
1188 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1189 rate->bitrate))
1190 return -ENOBUFS;
1191 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1192 nla_put_flag(msg,
1193 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1194 return -ENOBUFS;
ee688b00 1195
3713b4e3
JB		 1196 nla_nest_end(msg, nl_rate);
1197 }
d51626df 1198
3713b4e3 1199 nla_nest_end(msg, nl_rates);
bf0c111e 1200
3713b4e3
JB		 1201 return 0;
1202}
ee688b00 1203
3713b4e3
JB		 1204static int
1205nl80211_send_mgmt_stypes(struct sk_buff *msg,
1206 const struct ieee80211_txrx_stypes *mgmt_stypes)
1207{
1208 u16 stypes;
1209 struct nlattr *nl_ftypes, *nl_ifs;
1210 enum nl80211_iftype ift;
1211 int i;
ee688b00 1212
3713b4e3
JB		 1213 if (!mgmt_stypes)
1214 return 0;
5dab3b8a 1215
3713b4e3
JB		 1216 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1217 if (!nl_ifs)
1218 return -ENOBUFS;
e2f367f2 1219
3713b4e3
JB		 1220 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1221 nl_ftypes = nla_nest_start(msg, ift);
1222 if (!nl_ftypes)
1223 return -ENOBUFS;
1224 i = 0;
1225 stypes = mgmt_stypes[ift].tx;
1226 while (stypes) {
1227 if ((stypes & 1) &&
1228 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1229 (i << 4) | IEEE80211_FTYPE_MGMT))
1230 return -ENOBUFS;
1231 stypes >>= 1;
1232 i++;
ee688b00 1233 }
3713b4e3
JB		 1234 nla_nest_end(msg, nl_ftypes);
1235 }
ee688b00 1236
3713b4e3 1237 nla_nest_end(msg, nl_ifs);
ee688b00 1238
3713b4e3
JB		 1239 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1240 if (!nl_ifs)
1241 return -ENOBUFS;
ee688b00 1242
3713b4e3
JB		 1243 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1244 nl_ftypes = nla_nest_start(msg, ift);
1245 if (!nl_ftypes)
1246 return -ENOBUFS;
1247 i = 0;
1248 stypes = mgmt_stypes[ift].rx;
1249 while (stypes) {
1250 if ((stypes & 1) &&
1251 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1252 (i << 4) | IEEE80211_FTYPE_MGMT))
1253 return -ENOBUFS;
1254 stypes >>= 1;
1255 i++;
1256 }
1257 nla_nest_end(msg, nl_ftypes);
1258 }
1259 nla_nest_end(msg, nl_ifs);
ee688b00 1260
3713b4e3
JB		 1261 return 0;
1262}
ee688b00 1263
86e8cf98
JB		 1264struct nl80211_dump_wiphy_state {
1265 s64 filter_wiphy;
1266 long start;
1267 long split_start, band_start, chan_start;
1268 bool split;
1269};
1270
1b8ec87a 1271static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1272 enum nl80211_commands cmd,
3713b4e3 1273 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1274 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1275{
1276 void *hdr;
1277 struct nlattr *nl_bands, *nl_band;
1278 struct nlattr *nl_freqs, *nl_freq;
1279 struct nlattr *nl_cmds;
1280 enum ieee80211_band band;
1281 struct ieee80211_channel *chan;
1282 int i;
1283 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1284 rdev->wiphy.mgmt_stypes;
fe1abafd 1285 u32 features;
ee688b00 1286
3bb20556 1287 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1288 if (!hdr)
1289 return -ENOBUFS;
ee688b00 1290
86e8cf98
JB		 1291 if (WARN_ON(!state))
1292 return -EINVAL;
ee688b00 1293
1b8ec87a 1294 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1295 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1296 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1297 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1298 cfg80211_rdev_list_generation))
8fdc621d
JB		 1299 goto nla_put_failure;
1300
3bb20556
JB		 1301 if (cmd != NL80211_CMD_NEW_WIPHY)
1302 goto finish;
1303
86e8cf98 1304 switch (state->split_start) {
3713b4e3
JB		 1305 case 0:
1306 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1307 rdev->wiphy.retry_short) ||
3713b4e3 1308 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1309 rdev->wiphy.retry_long) ||
3713b4e3 1310 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1311 rdev->wiphy.frag_threshold) ||
3713b4e3 1312 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1313 rdev->wiphy.rts_threshold) ||
3713b4e3 1314 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1315 rdev->wiphy.coverage_class) ||
3713b4e3 1316 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1317 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1318 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1319 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1320 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1321 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1322 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1323 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1324 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1325 rdev->wiphy.max_match_sets) ||
1326 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1327 rdev->wiphy.max_sched_scan_plans) ||
1328 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1329 rdev->wiphy.max_sched_scan_plan_interval) ||
1330 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1331 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1332 goto nla_put_failure;
3713b4e3 1333
1b8ec87a 1334 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1335 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1336 goto nla_put_failure;
1b8ec87a 1337 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1338 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1339 goto nla_put_failure;
1b8ec87a 1340 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1341 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1342 goto nla_put_failure;
1b8ec87a 1343 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1344 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1345 goto nla_put_failure;
1b8ec87a 1346 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1347 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1348 goto nla_put_failure;
1b8ec87a 1349 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1350 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1351 goto nla_put_failure;
86e8cf98
JB		 1352 state->split_start++;
1353 if (state->split)
3713b4e3
JB		 1354 break;
1355 case 1:
1356 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1357 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1358 rdev->wiphy.cipher_suites))
3713b4e3 1359 goto nla_put_failure;
4745fc09 1360
3713b4e3 1361 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1362 rdev->wiphy.max_num_pmkids))
3713b4e3 1363 goto nla_put_failure;
b23aa676 1364
1b8ec87a 1365 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1366 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1367 goto nla_put_failure;
b23aa676 1368
3713b4e3 1369 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1370 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1371 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1372 rdev->wiphy.available_antennas_rx))
9360ffd1 1373 goto nla_put_failure;
b23aa676 1374
1b8ec87a 1375 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1376 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1377 rdev->wiphy.probe_resp_offload))
3713b4e3 1378 goto nla_put_failure;
8fdc621d 1379
1b8ec87a
ZG		 1380 if ((rdev->wiphy.available_antennas_tx ||
1381 rdev->wiphy.available_antennas_rx) &&
1382 rdev->ops->get_antenna) {
3713b4e3
JB		 1383 u32 tx_ant = 0, rx_ant = 0;
1384 int res;
1b8ec87a 1385 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1386 if (!res) {
1387 if (nla_put_u32(msg,
1388 NL80211_ATTR_WIPHY_ANTENNA_TX,
1389 tx_ant) ||
1390 nla_put_u32(msg,
1391 NL80211_ATTR_WIPHY_ANTENNA_RX,
1392 rx_ant))
1393 goto nla_put_failure;
1394 }
1395 }
a293911d 1396
86e8cf98
JB		 1397 state->split_start++;
1398 if (state->split)
3713b4e3
JB		 1399 break;
1400 case 2:
1401 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1402 rdev->wiphy.interface_modes))
3713b4e3 1403 goto nla_put_failure;
86e8cf98
JB		 1404 state->split_start++;
1405 if (state->split)
3713b4e3
JB		 1406 break;
1407 case 3:
1408 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1409 if (!nl_bands)
1410 goto nla_put_failure;
f7ca38df 1411
86e8cf98
JB		 1412 for (band = state->band_start;
1413 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1414 struct ieee80211_supported_band *sband;
2e161f78 1415
1b8ec87a 1416 sband = rdev->wiphy.bands[band];
2e161f78 1417
3713b4e3
JB		 1418 if (!sband)
1419 continue;
1420
1421 nl_band = nla_nest_start(msg, band);
1422 if (!nl_band)
2e161f78 1423 goto nla_put_failure;
3713b4e3 1424
86e8cf98 1425 switch (state->chan_start) {
3713b4e3
JB		 1426 case 0:
1427 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1428 goto nla_put_failure;
86e8cf98
JB		 1429 state->chan_start++;
1430 if (state->split)
3713b4e3
JB		 1431 break;
1432 default:
1433 /* add frequencies */
1434 nl_freqs = nla_nest_start(
1435 msg, NL80211_BAND_ATTR_FREQS);
1436 if (!nl_freqs)
1437 goto nla_put_failure;
1438
86e8cf98 1439 for (i = state->chan_start - 1;
3713b4e3
JB		 1440 i < sband->n_channels;
1441 i++) {
1442 nl_freq = nla_nest_start(msg, i);
1443 if (!nl_freq)
1444 goto nla_put_failure;
1445
1446 chan = &sband->channels[i];
1447
86e8cf98
JB		 1448 if (nl80211_msg_put_channel(
1449 msg, chan,
1450 state->split))
3713b4e3
JB		 1451 goto nla_put_failure;
1452
1453 nla_nest_end(msg, nl_freq);
86e8cf98 1454 if (state->split)
3713b4e3
JB		 1455 break;
1456 }
1457 if (i < sband->n_channels)
86e8cf98 1458 state->chan_start = i + 2;
3713b4e3 1459 else
86e8cf98 1460 state->chan_start = 0;
3713b4e3
JB		 1461 nla_nest_end(msg, nl_freqs);
1462 }
1463
1464 nla_nest_end(msg, nl_band);
1465
86e8cf98 1466 if (state->split) {
3713b4e3 1467 /* start again here */
86e8cf98 1468 if (state->chan_start)
3713b4e3
JB		 1469 band--;
1470 break;
2e161f78 1471 }
2e161f78 1472 }
3713b4e3 1473 nla_nest_end(msg, nl_bands);
2e161f78 1474
3713b4e3 1475 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1476 state->band_start = band + 1;
3713b4e3 1477 else
86e8cf98 1478 state->band_start = 0;
74b70a4e 1479
3713b4e3 1480 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1481 if (state->band_start == 0 && state->chan_start == 0)
1482 state->split_start++;
1483 if (state->split)
3713b4e3
JB		 1484 break;
1485 case 4:
1486 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1487 if (!nl_cmds)
2e161f78
JB		 1488 goto nla_put_failure;
1489
3713b4e3
JB		 1490 i = 0;
1491#define CMD(op, n) \
1492 do { \
1b8ec87a 1493 if (rdev->ops->op) { \
3713b4e3
JB		 1494 i++; \
1495 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1496 goto nla_put_failure; \
1497 } \
1498 } while (0)
1499
1500 CMD(add_virtual_intf, NEW_INTERFACE);
1501 CMD(change_virtual_intf, SET_INTERFACE);
1502 CMD(add_key, NEW_KEY);
1503 CMD(start_ap, START_AP);
1504 CMD(add_station, NEW_STATION);
1505 CMD(add_mpath, NEW_MPATH);
1506 CMD(update_mesh_config, SET_MESH_CONFIG);
1507 CMD(change_bss, SET_BSS);
1508 CMD(auth, AUTHENTICATE);
1509 CMD(assoc, ASSOCIATE);
1510 CMD(deauth, DEAUTHENTICATE);
1511 CMD(disassoc, DISASSOCIATE);
1512 CMD(join_ibss, JOIN_IBSS);
1513 CMD(join_mesh, JOIN_MESH);
1514 CMD(set_pmksa, SET_PMKSA);
1515 CMD(del_pmksa, DEL_PMKSA);
1516 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1517 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1518 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1519 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1520 CMD(mgmt_tx, FRAME);
1521 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1522 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1523 i++;
1524 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1525 goto nla_put_failure;
2e161f78 1526 }
1b8ec87a
ZG		 1527 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1528 rdev->ops->join_mesh) {
3713b4e3
JB		 1529 i++;
1530 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1531 goto nla_put_failure;
1532 }
1533 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1534 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1535 CMD(tdls_mgmt, TDLS_MGMT);
1536 CMD(tdls_oper, TDLS_OPER);
1537 }
1b8ec87a 1538 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1539 CMD(sched_scan_start, START_SCHED_SCAN);
1540 CMD(probe_client, PROBE_CLIENT);
1541 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1542 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1543 i++;
1544 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1545 goto nla_put_failure;
1546 }
1547 CMD(start_p2p_device, START_P2P_DEVICE);
1548 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1549#ifdef CONFIG_NL80211_TESTMODE
1550 CMD(testmode_cmd, TESTMODE);
1551#endif
86e8cf98 1552 if (state->split) {
5de17984
AS		 1553 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1554 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1555 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1556 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1557 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1558 if (rdev->wiphy.features &
1559 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1560 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1561 }
02df00eb 1562 /* add into the if now */
3713b4e3 1563#undef CMD
ff1b6e69 1564
1b8ec87a 1565 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1566 i++;
1567 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1568 goto nla_put_failure;
ff1b6e69
JB		 1569 }
1570
1b8ec87a 1571 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1572 i++;
1573 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1574 goto nla_put_failure;
1575 }
1576
1577 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1578 state->split_start++;
1579 if (state->split)
3713b4e3
JB		 1580 break;
1581 case 5:
1b8ec87a
ZG		 1582 if (rdev->ops->remain_on_channel &&
1583 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1584 nla_put_u32(msg,
1585 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1586 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1587 goto nla_put_failure;
1588
1b8ec87a 1589 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1590 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1591 goto nla_put_failure;
1592
1593 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1594 goto nla_put_failure;
86e8cf98
JB		 1595 state->split_start++;
1596 if (state->split)
3713b4e3
JB		 1597 break;
1598 case 6:
1599#ifdef CONFIG_PM
1b8ec87a 1600 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1601 goto nla_put_failure;
86e8cf98
JB		 1602 state->split_start++;
1603 if (state->split)
3713b4e3
JB		 1604 break;
1605#else
86e8cf98 1606 state->split_start++;
dfb89c56 1607#endif
3713b4e3
JB		 1608 case 7:
1609 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1610 rdev->wiphy.software_iftypes))
3713b4e3 1611 goto nla_put_failure;
ff1b6e69 1612
1b8ec87a 1613 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1614 state->split))
3713b4e3 1615 goto nla_put_failure;
7527a782 1616
86e8cf98
JB		 1617 state->split_start++;
1618 if (state->split)
3713b4e3
JB		 1619 break;
1620 case 8:
1b8ec87a 1621 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1622 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1623 rdev->wiphy.ap_sme_capa))
3713b4e3 1624 goto nla_put_failure;
7527a782 1625
1b8ec87a 1626 features = rdev->wiphy.features;
fe1abafd
JB		 1627 /*
1628 * We can only add the per-channel limit information if the
1629 * dump is split, otherwise it makes it too big. Therefore
1630 * only advertise it in that case.
1631 */
86e8cf98 1632 if (state->split)
fe1abafd
JB		 1633 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1634 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1635 goto nla_put_failure;
562a7480 1636
1b8ec87a 1637 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1638 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1639 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1640 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1641 goto nla_put_failure;
1f074bd8 1642
1b8ec87a
ZG		 1643 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1644 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1645 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1646 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1647 goto nla_put_failure;
7e7c8926 1648
3713b4e3
JB		 1649 /*
1650 * Any information below this point is only available to
1651 * applications that can deal with it being split. This
1652 * helps ensure that newly added capabilities don't break
1653 * older tools by overrunning their buffers.
1654 *
1655 * We still increment split_start so that in the split
1656 * case we'll continue with more data in the next round,
1657 * but break unconditionally so unsplit data stops here.
1658 */
86e8cf98 1659 state->split_start++;
3713b4e3
JB		 1660 break;
1661 case 9:
1b8ec87a 1662 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1663 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1664 rdev->wiphy.extended_capabilities_len,
1665 rdev->wiphy.extended_capabilities) ||
fe1abafd 1666 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1667 rdev->wiphy.extended_capabilities_len,
1668 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1669 goto nla_put_failure;
a50df0c4 1670
1b8ec87a 1671 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1672 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1673 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1674 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1675 goto nla_put_failure;
1676
be29b99a
AK		 1677 state->split_start++;
1678 break;
1679 case 10:
1b8ec87a 1680 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1681 goto nla_put_failure;
1682
1b8ec87a 1683 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1684 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1685 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1686 goto nla_put_failure;
b43504cf 1687
1b8ec87a 1688 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1689 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1690 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1691 goto nla_put_failure;
1692
ad7e718c
JB		 1693 state->split_start++;
1694 break;
1695 case 11:
1b8ec87a 1696 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1697 const struct nl80211_vendor_cmd_info *info;
1698 struct nlattr *nested;
1699
1700 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1701 if (!nested)
1702 goto nla_put_failure;
1703
1b8ec87a
ZG		 1704 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1705 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1706 if (nla_put(msg, i + 1, sizeof(*info), info))
1707 goto nla_put_failure;
1708 }
1709 nla_nest_end(msg, nested);
1710 }
1711
1b8ec87a 1712 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1713 const struct nl80211_vendor_cmd_info *info;
1714 struct nlattr *nested;
ad7e718c 1715
567ffc35
JB		 1716 nested = nla_nest_start(msg,
1717 NL80211_ATTR_VENDOR_EVENTS);
1718 if (!nested)
ad7e718c 1719 goto nla_put_failure;
567ffc35 1720
1b8ec87a
ZG		 1721 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1722 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1723 if (nla_put(msg, i + 1, sizeof(*info), info))
1724 goto nla_put_failure;
1725 }
1726 nla_nest_end(msg, nested);
1727 }
9a774c78
AO		 1728 state->split_start++;
1729 break;
1730 case 12:
1731 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1732 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1733 rdev->wiphy.max_num_csa_counters))
1734 goto nla_put_failure;
01e0daa4 1735
1bdd716c
AN		 1736 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1737 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1738 goto nla_put_failure;
1739
d75bb06b
GKS		 1740 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1741 sizeof(rdev->wiphy.ext_features),
1742 rdev->wiphy.ext_features))
1743 goto nla_put_failure;
1744
38de03d2
AS		 1745 if (rdev->wiphy.bss_select_support) {
1746 struct nlattr *nested;
1747 u32 bss_select_support = rdev->wiphy.bss_select_support;
1748
1749 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1750 if (!nested)
1751 goto nla_put_failure;
1752
1753 i = 0;
1754 while (bss_select_support) {
1755 if ((bss_select_support & 1) &&
1756 nla_put_flag(msg, i))
1757 goto nla_put_failure;
1758 i++;
1759 bss_select_support >>= 1;
1760 }
1761 nla_nest_end(msg, nested);
1762 }
1763
3713b4e3 1764 /* done */
86e8cf98 1765 state->split_start = 0;
3713b4e3
JB		 1766 break;
1767 }
3bb20556 1768 finish:
053c095a
JB		 1769 genlmsg_end(msg, hdr);
1770 return 0;
55682965
JB		 1771
1772 nla_put_failure:
bc3ed28c
TG		 1773 genlmsg_cancel(msg, hdr);
1774 return -EMSGSIZE;
55682965
JB		 1775}
1776
86e8cf98
JB		 1777static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1778 struct netlink_callback *cb,
1779 struct nl80211_dump_wiphy_state *state)
1780{
1781 struct nlattr **tb = nl80211_fam.attrbuf;
1782 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1783 tb, nl80211_fam.maxattr, nl80211_policy);
1784 /* ignore parse errors for backward compatibility */
1785 if (ret)
1786 return 0;
1787
1788 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1789 if (tb[NL80211_ATTR_WIPHY])
1790 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1791 if (tb[NL80211_ATTR_WDEV])
1792 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1793 if (tb[NL80211_ATTR_IFINDEX]) {
1794 struct net_device *netdev;
1795 struct cfg80211_registered_device *rdev;
1796 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1797
7f2b8562 1798 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1799 if (!netdev)
1800 return -ENODEV;
1801 if (netdev->ieee80211_ptr) {
f26cbf40 1802 rdev = wiphy_to_rdev(
86e8cf98
JB		 1803 netdev->ieee80211_ptr->wiphy);
1804 state->filter_wiphy = rdev->wiphy_idx;
1805 }
86e8cf98
JB		 1806 }
1807
1808 return 0;
1809}
1810
55682965
JB		 1811static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1812{
645e77de 1813 int idx = 0, ret;
86e8cf98 1814 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1815 struct cfg80211_registered_device *rdev;
3a5a423b 1816
5fe231e8 1817 rtnl_lock();
86e8cf98
JB		 1818 if (!state) {
1819 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1820 if (!state) {
1821 rtnl_unlock();
86e8cf98 1822 return -ENOMEM;
3713b4e3 1823 }
86e8cf98
JB		 1824 state->filter_wiphy = -1;
1825 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1826 if (ret) {
1827 kfree(state);
1828 rtnl_unlock();
1829 return ret;
3713b4e3 1830 }
86e8cf98 1831 cb->args[0] = (long)state;
3713b4e3
JB		 1832 }
1833
1b8ec87a
ZG		 1834 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1835 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1836 continue;
86e8cf98 1837 if (++idx <= state->start)
55682965 1838 continue;
86e8cf98 1839 if (state->filter_wiphy != -1 &&
1b8ec87a 1840 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1841 continue;
1842 /* attempt to fit multiple wiphy data chunks into the skb */
1843 do {
3bb20556
JB		 1844 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1845 skb,
3713b4e3
JB		 1846 NETLINK_CB(cb->skb).portid,
1847 cb->nlh->nlmsg_seq,
86e8cf98 1848 NLM_F_MULTI, state);
3713b4e3
JB		 1849 if (ret < 0) {
1850 /*
1851 * If sending the wiphy data didn't fit (ENOBUFS
1852 * or EMSGSIZE returned), this SKB is still
1853 * empty (so it's not too big because another
1854 * wiphy dataset is already in the skb) and
1855 * we've not tried to adjust the dump allocation
1856 * yet ... then adjust the alloc size to be
1857 * bigger, and return 1 but with the empty skb.
1858 * This results in an empty message being RX'ed
1859 * in userspace, but that is ignored.
1860 *
1861 * We can then retry with the larger buffer.
1862 */
1863 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1864 !skb->len && !state->split &&
3713b4e3
JB		 1865 cb->min_dump_alloc < 4096) {
1866 cb->min_dump_alloc = 4096;
f12cb289 1867 state->split_start = 0;
d98cae64 1868 rtnl_unlock();
3713b4e3
JB		 1869 return 1;
1870 }
1871 idx--;
1872 break;
645e77de 1873 }
86e8cf98 1874 } while (state->split_start > 0);
3713b4e3 1875 break;
55682965 1876 }
5fe231e8 1877 rtnl_unlock();
55682965 1878
86e8cf98 1879 state->start = idx;
55682965
JB		 1880
1881 return skb->len;
1882}
1883
86e8cf98
JB		 1884static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1885{
1886 kfree((void *)cb->args[0]);
1887 return 0;
1888}
1889
55682965
JB		 1890static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1891{
1892 struct sk_buff *msg;
1b8ec87a 1893 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1894 struct nl80211_dump_wiphy_state state = {};
55682965 1895
645e77de 1896 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1897 if (!msg)
4c476991 1898 return -ENOMEM;
55682965 1899
3bb20556
JB		 1900 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1901 info->snd_portid, info->snd_seq, 0,
86e8cf98 1902 &state) < 0) {
4c476991
JB		 1903 nlmsg_free(msg);
1904 return -ENOBUFS;
1905 }
55682965 1906
134e6375 1907 return genlmsg_reply(msg, info);
55682965
JB		 1908}
1909
31888487
JM		 1910static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1911 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1912 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1913 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1914 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1915 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1916};
1917
1918static int parse_txq_params(struct nlattr *tb[],
1919 struct ieee80211_txq_params *txq_params)
1920{
a3304b0a 1921 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1922 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1923 !tb[NL80211_TXQ_ATTR_AIFS])
1924 return -EINVAL;
1925
a3304b0a 1926 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1927 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1928 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1929 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1930 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1931
a3304b0a
JB		 1932 if (txq_params->ac >= NL80211_NUM_ACS)
1933 return -EINVAL;
1934
31888487
JM		 1935 return 0;
1936}
1937
f444de05
JB		 1938static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1939{
1940 /*
cc1d2806
JB		 1941 * You can only set the channel explicitly for WDS interfaces,
1942 * all others have their channel managed via their respective
1943 * "establish a connection" command (connect, join, ...)
1944 *
1945 * For AP/GO and mesh mode, the channel can be set with the
1946 * channel userspace API, but is only stored and passed to the
1947 * low-level driver when the AP starts or the mesh is joined.
1948 * This is for backward compatibility, userspace can also give
1949 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1950 *
1951 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1952 * whatever else is going on, so they have their own special
1953 * operation to set the monitor channel if possible.
f444de05
JB		 1954 */
1955 return !wdev ||
1956 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1957 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1958 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1959 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1960}
1961
683b6d3b
JB		 1962static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1963 struct genl_info *info,
1964 struct cfg80211_chan_def *chandef)
1965{
dbeca2ea 1966 u32 control_freq;
683b6d3b
JB		 1967
1968 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1969 return -EINVAL;
1970
1971 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1972
1973 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1974 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1975 chandef->center_freq1 = control_freq;
1976 chandef->center_freq2 = 0;
683b6d3b
JB		 1977
1978 /* Primary channel not allowed */
1979 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1980 return -EINVAL;
1981
3d9d1d66
JB		 1982 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1983 enum nl80211_channel_type chantype;
1984
1985 chantype = nla_get_u32(
1986 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1987
1988 switch (chantype) {
1989 case NL80211_CHAN_NO_HT:
1990 case NL80211_CHAN_HT20:
1991 case NL80211_CHAN_HT40PLUS:
1992 case NL80211_CHAN_HT40MINUS:
1993 cfg80211_chandef_create(chandef, chandef->chan,
1994 chantype);
1995 break;
1996 default:
1997 return -EINVAL;
1998 }
1999 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2000 chandef->width =
2001 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2002 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2003 chandef->center_freq1 =
2004 nla_get_u32(
2005 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2006 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2007 chandef->center_freq2 =
2008 nla_get_u32(
2009 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2010 }
2011
9f5e8f6e 2012 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 2013 return -EINVAL;
2014
9f5e8f6e
JB		 2015 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2016 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 2017 return -EINVAL;
2018
2f301ab2
SW		 2019 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2020 chandef->width == NL80211_CHAN_WIDTH_10) &&
2021 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2022 return -EINVAL;
2023
683b6d3b
JB		 2024 return 0;
2025}
2026
f444de05 2027static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 2028 struct net_device *dev,
f444de05
JB		 2029 struct genl_info *info)
2030{
683b6d3b 2031 struct cfg80211_chan_def chandef;
f444de05 2032 int result;
e8c9bd5b 2033 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2034 struct wireless_dev *wdev = NULL;
e8c9bd5b 2035
e16821bc
JM		 2036 if (dev)
2037 wdev = dev->ieee80211_ptr;
f444de05
JB		 2038 if (!nl80211_can_set_dev_channel(wdev))
2039 return -EOPNOTSUPP;
e16821bc
JM		 2040 if (wdev)
2041 iftype = wdev->iftype;
f444de05 2042
683b6d3b
JB		 2043 result = nl80211_parse_chandef(rdev, info, &chandef);
2044 if (result)
2045 return result;
f444de05 2046
e8c9bd5b 2047 switch (iftype) {
aa430da4
JB		 2048 case NL80211_IFTYPE_AP:
2049 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2050 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2051 iftype)) {
aa430da4
JB		 2052 result = -EINVAL;
2053 break;
2054 }
e16821bc
JM		 2055 if (wdev->beacon_interval) {
2056 if (!dev || !rdev->ops->set_ap_chanwidth ||
2057 !(rdev->wiphy.features &
2058 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2059 result = -EBUSY;
2060 break;
2061 }
2062
2063 /* Only allow dynamic channel width changes */
2064 if (chandef.chan != wdev->preset_chandef.chan) {
2065 result = -EBUSY;
2066 break;
2067 }
2068 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2069 if (result)
2070 break;
2071 }
683b6d3b 2072 wdev->preset_chandef = chandef;
aa430da4
JB		 2073 result = 0;
2074 break;
cc1d2806 2075 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2076 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2077 break;
e8c9bd5b 2078 case NL80211_IFTYPE_MONITOR:
683b6d3b 2079 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2080 break;
aa430da4 2081 default:
e8c9bd5b 2082 result = -EINVAL;
f444de05 2083 }
f444de05
JB		 2084
2085 return result;
2086}
2087
2088static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2089{
4c476991
JB		 2090 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2091 struct net_device *netdev = info->user_ptr[1];
f444de05 2092
e16821bc 2093 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2094}
2095
e8347eba
BJ		 2096static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2097{
43b19952
JB		 2098 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2099 struct net_device *dev = info->user_ptr[1];
2100 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2101 const u8 *bssid;
e8347eba
BJ		 2102
2103 if (!info->attrs[NL80211_ATTR_MAC])
2104 return -EINVAL;
2105
43b19952
JB		 2106 if (netif_running(dev))
2107 return -EBUSY;
e8347eba 2108
43b19952
JB		 2109 if (!rdev->ops->set_wds_peer)
2110 return -EOPNOTSUPP;
e8347eba 2111
43b19952
JB		 2112 if (wdev->iftype != NL80211_IFTYPE_WDS)
2113 return -EOPNOTSUPP;
e8347eba
BJ		 2114
2115 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2116 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2117}
2118
2119
55682965
JB		 2120static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2121{
2122 struct cfg80211_registered_device *rdev;
f444de05
JB		 2123 struct net_device *netdev = NULL;
2124 struct wireless_dev *wdev;
a1e567c8 2125 int result = 0, rem_txq_params = 0;
31888487 2126 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2127 u32 changed;
2128 u8 retry_short = 0, retry_long = 0;
2129 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2130 u8 coverage_class = 0;
55682965 2131
5fe231e8
JB		 2132 ASSERT_RTNL();
2133
f444de05
JB		 2134 /*
2135 * Try to find the wiphy and netdev. Normally this
2136 * function shouldn't need the netdev, but this is
2137 * done for backward compatibility -- previously
2138 * setting the channel was done per wiphy, but now
2139 * it is per netdev. Previous userland like hostapd
2140 * also passed a netdev to set_wiphy, so that it is
2141 * possible to let that go to the right netdev!
2142 */
4bbf4d56 2143
f444de05
JB		 2144 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2145 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2146
7f2b8562 2147 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2148 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2149 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2150 else
f444de05 2151 netdev = NULL;
4bbf4d56
JB		 2152 }
2153
f444de05 2154 if (!netdev) {
878d9ec7
JB		 2155 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2156 info->attrs);
5fe231e8 2157 if (IS_ERR(rdev))
4c476991 2158 return PTR_ERR(rdev);
f444de05
JB		 2159 wdev = NULL;
2160 netdev = NULL;
2161 result = 0;
71fe96bf 2162 } else
f444de05 2163 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2164
2165 /*
2166 * end workaround code, by now the rdev is available
2167 * and locked, and wdev may or may not be NULL.
2168 */
4bbf4d56
JB		 2169
2170 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2171 result = cfg80211_dev_rename(
2172 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2173
4bbf4d56 2174 if (result)
7f2b8562 2175 return result;
31888487
JM		 2176
2177 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2178 struct ieee80211_txq_params txq_params;
2179 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2180
7f2b8562
YX		 2181 if (!rdev->ops->set_txq_params)
2182 return -EOPNOTSUPP;
31888487 2183
7f2b8562
YX		 2184 if (!netdev)
2185 return -EINVAL;
f70f01c2 2186
133a3ff2 2187 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2188 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2189 return -EINVAL;
133a3ff2 2190
7f2b8562
YX		 2191 if (!netif_running(netdev))
2192 return -ENETDOWN;
2b5f8b0b 2193
31888487
JM		 2194 nla_for_each_nested(nl_txq_params,
2195 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2196 rem_txq_params) {
ae811e21
JB		 2197 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2198 nla_data(nl_txq_params),
2199 nla_len(nl_txq_params),
2200 txq_params_policy);
2201 if (result)
2202 return result;
31888487
JM		 2203 result = parse_txq_params(tb, &txq_params);
2204 if (result)
7f2b8562 2205 return result;
31888487 2206
e35e4d28
HG		 2207 result = rdev_set_txq_params(rdev, netdev,
2208 &txq_params);
31888487 2209 if (result)
7f2b8562 2210 return result;
31888487
JM		 2211 }
2212 }
55682965 2213
72bdcf34 2214 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2215 result = __nl80211_set_channel(
2216 rdev,
2217 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2218 info);
72bdcf34 2219 if (result)
7f2b8562 2220 return result;
72bdcf34
JM		 2221 }
2222
98d2ff8b 2223 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2224 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2225 enum nl80211_tx_power_setting type;
2226 int idx, mbm = 0;
2227
c8442118
JB		 2228 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2229 txp_wdev = NULL;
2230
7f2b8562
YX		 2231 if (!rdev->ops->set_tx_power)
2232 return -EOPNOTSUPP;
98d2ff8b
JO		 2233
2234 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2235 type = nla_get_u32(info->attrs[idx]);
2236
2237 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2238 (type != NL80211_TX_POWER_AUTOMATIC))
2239 return -EINVAL;
98d2ff8b
JO		 2240
2241 if (type != NL80211_TX_POWER_AUTOMATIC) {
2242 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2243 mbm = nla_get_u32(info->attrs[idx]);
2244 }
2245
c8442118 2246 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2247 if (result)
7f2b8562 2248 return result;
98d2ff8b
JO		 2249 }
2250
afe0cbf8
BR		 2251 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2252 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2253 u32 tx_ant, rx_ant;
7f531e03
BR		 2254 if ((!rdev->wiphy.available_antennas_tx &&
2255 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2256 !rdev->ops->set_antenna)
2257 return -EOPNOTSUPP;
afe0cbf8
BR		 2258
2259 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2260 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2261
a7ffac95 2262 /* reject antenna configurations which don't match the
7f531e03
BR		 2263 * available antenna masks, except for the "all" mask */
2264 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2265 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2266 return -EINVAL;
a7ffac95 2267
7f531e03
BR		 2268 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2269 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2270
e35e4d28 2271 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2272 if (result)
7f2b8562 2273 return result;
afe0cbf8
BR		 2274 }
2275
b9a5f8ca
JM		 2276 changed = 0;
2277
2278 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2279 retry_short = nla_get_u8(
2280 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2281 if (retry_short == 0)
2282 return -EINVAL;
2283
b9a5f8ca
JM		 2284 changed |= WIPHY_PARAM_RETRY_SHORT;
2285 }
2286
2287 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2288 retry_long = nla_get_u8(
2289 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2290 if (retry_long == 0)
2291 return -EINVAL;
2292
b9a5f8ca
JM		 2293 changed |= WIPHY_PARAM_RETRY_LONG;
2294 }
2295
2296 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2297 frag_threshold = nla_get_u32(
2298 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2299 if (frag_threshold < 256)
2300 return -EINVAL;
2301
b9a5f8ca
JM		 2302 if (frag_threshold != (u32) -1) {
2303 /*
2304 * Fragments (apart from the last one) are required to
2305 * have even length. Make the fragmentation code
2306 * simpler by stripping LSB should someone try to use
2307 * odd threshold value.
2308 */
2309 frag_threshold &= ~0x1;
2310 }
2311 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2312 }
2313
2314 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2315 rts_threshold = nla_get_u32(
2316 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2317 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2318 }
2319
81077e82 2320 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2321 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2322 return -EINVAL;
2323
81077e82
LT		 2324 coverage_class = nla_get_u8(
2325 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2326 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2327 }
2328
3057dbfd
LB		 2329 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2330 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2331 return -EOPNOTSUPP;
2332
2333 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2334 }
2335
b9a5f8ca
JM		 2336 if (changed) {
2337 u8 old_retry_short, old_retry_long;
2338 u32 old_frag_threshold, old_rts_threshold;
81077e82 2339 u8 old_coverage_class;
b9a5f8ca 2340
7f2b8562
YX		 2341 if (!rdev->ops->set_wiphy_params)
2342 return -EOPNOTSUPP;
b9a5f8ca
JM		 2343
2344 old_retry_short = rdev->wiphy.retry_short;
2345 old_retry_long = rdev->wiphy.retry_long;
2346 old_frag_threshold = rdev->wiphy.frag_threshold;
2347 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2348 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2349
2350 if (changed & WIPHY_PARAM_RETRY_SHORT)
2351 rdev->wiphy.retry_short = retry_short;
2352 if (changed & WIPHY_PARAM_RETRY_LONG)
2353 rdev->wiphy.retry_long = retry_long;
2354 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2355 rdev->wiphy.frag_threshold = frag_threshold;
2356 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2357 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2358 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2359 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2360
e35e4d28 2361 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2362 if (result) {
2363 rdev->wiphy.retry_short = old_retry_short;
2364 rdev->wiphy.retry_long = old_retry_long;
2365 rdev->wiphy.frag_threshold = old_frag_threshold;
2366 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2367 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2368 return result;
b9a5f8ca
JM		 2369 }
2370 }
7f2b8562 2371 return 0;
55682965
JB		 2372}
2373
71bbc994
JB		 2374static inline u64 wdev_id(struct wireless_dev *wdev)
2375{
2376 return (u64)wdev->identifier |
f26cbf40 2377 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2378}
55682965 2379
683b6d3b 2380static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2381 const struct cfg80211_chan_def *chandef)
683b6d3b 2382{
601555cd
JB		 2383 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2384 return -EINVAL;
3d9d1d66 2385
683b6d3b
JB		 2386 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2387 chandef->chan->center_freq))
2388 return -ENOBUFS;
3d9d1d66
JB		 2389 switch (chandef->width) {
2390 case NL80211_CHAN_WIDTH_20_NOHT:
2391 case NL80211_CHAN_WIDTH_20:
2392 case NL80211_CHAN_WIDTH_40:
2393 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2394 cfg80211_get_chandef_type(chandef)))
2395 return -ENOBUFS;
2396 break;
2397 default:
2398 break;
2399 }
2400 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2401 return -ENOBUFS;
2402 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2403 return -ENOBUFS;
2404 if (chandef->center_freq2 &&
2405 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2406 return -ENOBUFS;
2407 return 0;
2408}
2409
15e47304 2410static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2411 struct cfg80211_registered_device *rdev,
8f894be2 2412 struct wireless_dev *wdev, bool removal)
55682965 2413{
72fb2abc 2414 struct net_device *dev = wdev->netdev;
8f894be2 2415 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2416 void *hdr;
2417
8f894be2
TB		 2418 if (removal)
2419 cmd = NL80211_CMD_DEL_INTERFACE;
2420
2421 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2422 if (!hdr)
2423 return -1;
2424
72fb2abc
JB		 2425 if (dev &&
2426 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2427 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2428 goto nla_put_failure;
2429
2430 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2431 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2432 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2433 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2434 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2435 rdev->devlist_generation ^
2436 (cfg80211_rdev_list_generation << 2)))
2437 goto nla_put_failure;
f5ea9120 2438
5b7ccaf3 2439 if (rdev->ops->get_channel) {
683b6d3b
JB		 2440 int ret;
2441 struct cfg80211_chan_def chandef;
2442
2443 ret = rdev_get_channel(rdev, wdev, &chandef);
2444 if (ret == 0) {
2445 if (nl80211_send_chandef(msg, &chandef))
2446 goto nla_put_failure;
2447 }
d91df0e3
PF		 2448 }
2449
d55d0d59
RM		 2450 if (rdev->ops->get_tx_power) {
2451 int dbm, ret;
2452
2453 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2454 if (ret == 0 &&
2455 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2456 DBM_TO_MBM(dbm)))
2457 goto nla_put_failure;
2458 }
2459
b84e7a05
AQ		 2460 if (wdev->ssid_len) {
2461 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2462 goto nla_put_failure;
2463 }
2464
053c095a
JB		 2465 genlmsg_end(msg, hdr);
2466 return 0;
55682965
JB		 2467
2468 nla_put_failure:
bc3ed28c
TG		 2469 genlmsg_cancel(msg, hdr);
2470 return -EMSGSIZE;
55682965
JB		 2471}
2472
2473static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2474{
2475 int wp_idx = 0;
2476 int if_idx = 0;
2477 int wp_start = cb->args[0];
2478 int if_start = cb->args[1];
f5ea9120 2479 struct cfg80211_registered_device *rdev;
55682965
JB		 2480 struct wireless_dev *wdev;
2481
5fe231e8 2482 rtnl_lock();
f5ea9120
JB		 2483 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2484 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2485 continue;
bba95fef
JB		 2486 if (wp_idx < wp_start) {
2487 wp_idx++;
55682965 2488 continue;
bba95fef 2489 }
55682965
JB		 2490 if_idx = 0;
2491
89a54e48 2492 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2493 if (if_idx < if_start) {
2494 if_idx++;
55682965 2495 continue;
bba95fef 2496 }
15e47304 2497 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2498 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2499 rdev, wdev, false) < 0) {
bba95fef
JB		 2500 goto out;
2501 }
2502 if_idx++;
55682965 2503 }
bba95fef
JB		 2504
2505 wp_idx++;
55682965 2506 }
bba95fef 2507 out:
5fe231e8 2508 rtnl_unlock();
55682965
JB		 2509
2510 cb->args[0] = wp_idx;
2511 cb->args[1] = if_idx;
2512
2513 return skb->len;
2514}
2515
2516static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2517{
2518 struct sk_buff *msg;
1b8ec87a 2519 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2520 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2521
fd2120ca 2522 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2523 if (!msg)
4c476991 2524 return -ENOMEM;
55682965 2525
15e47304 2526 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2527 rdev, wdev, false) < 0) {
4c476991
JB		 2528 nlmsg_free(msg);
2529 return -ENOBUFS;
2530 }
55682965 2531
134e6375 2532 return genlmsg_reply(msg, info);
55682965
JB		 2533}
2534
66f7ac50
MW		 2535static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2536 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2537 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2538 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2539 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2540 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2541 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2542};
2543
2544static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2545{
2546 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2547 int flag;
2548
2549 *mntrflags = 0;
2550
2551 if (!nla)
2552 return -EINVAL;
2553
2554 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2555 nla, mntr_flags_policy))
2556 return -EINVAL;
2557
2558 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2559 if (flags[flag])
2560 *mntrflags |= (1<<flag);
2561
2562 return 0;
2563}
2564
9bc383de 2565static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2566 struct net_device *netdev, u8 use_4addr,
2567 enum nl80211_iftype iftype)
9bc383de 2568{
ad4bb6f8 2569 if (!use_4addr) {
f350a0a8 2570 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2571 return -EBUSY;
9bc383de 2572 return 0;
ad4bb6f8 2573 }
9bc383de
JB		 2574
2575 switch (iftype) {
2576 case NL80211_IFTYPE_AP_VLAN:
2577 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2578 return 0;
2579 break;
2580 case NL80211_IFTYPE_STATION:
2581 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2582 return 0;
2583 break;
2584 default:
2585 break;
2586 }
2587
2588 return -EOPNOTSUPP;
2589}
2590
55682965
JB		 2591static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2592{
4c476991 2593 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2594 struct vif_params params;
e36d56b6 2595 int err;
04a773ad 2596 enum nl80211_iftype otype, ntype;
4c476991 2597 struct net_device *dev = info->user_ptr[1];
92ffe055 2598 u32 _flags, *flags = NULL;
ac7f9cfa 2599 bool change = false;
55682965 2600
2ec600d6
LCC		 2601 memset(&params, 0, sizeof(params));
2602
04a773ad 2603 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2604
723b038d 2605 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2606 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2607 if (otype != ntype)
ac7f9cfa 2608 change = true;
4c476991
JB		 2609 if (ntype > NL80211_IFTYPE_MAX)
2610 return -EINVAL;
723b038d
JB		 2611 }
2612
92ffe055 2613 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2614 struct wireless_dev *wdev = dev->ieee80211_ptr;
2615
4c476991
JB		 2616 if (ntype != NL80211_IFTYPE_MESH_POINT)
2617 return -EINVAL;
29cbe68c
JB		 2618 if (netif_running(dev))
2619 return -EBUSY;
2620
2621 wdev_lock(wdev);
2622 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2623 IEEE80211_MAX_MESH_ID_LEN);
2624 wdev->mesh_id_up_len =
2625 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2626 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2627 wdev->mesh_id_up_len);
2628 wdev_unlock(wdev);
2ec600d6
LCC		 2629 }
2630
8b787643
FF		 2631 if (info->attrs[NL80211_ATTR_4ADDR]) {
2632 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2633 change = true;
ad4bb6f8 2634 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2635 if (err)
4c476991 2636 return err;
8b787643
FF		 2637 } else {
2638 params.use_4addr = -1;
2639 }
2640
92ffe055 2641 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2642 if (ntype != NL80211_IFTYPE_MONITOR)
2643 return -EINVAL;
92ffe055
JB		 2644 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2645 &_flags);
ac7f9cfa 2646 if (err)
4c476991 2647 return err;
ac7f9cfa
JB		 2648
2649 flags = &_flags;
2650 change = true;
92ffe055 2651 }
3b85875a 2652
18003297 2653 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2654 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2655 return -EOPNOTSUPP;
2656
ac7f9cfa 2657 if (change)
3d54d255 2658 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2659 else
2660 err = 0;
60719ffd 2661
9bc383de
JB		 2662 if (!err && params.use_4addr != -1)
2663 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2664
55682965
JB		 2665 return err;
2666}
2667
2668static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2669{
4c476991 2670 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2671 struct vif_params params;
84efbb84 2672 struct wireless_dev *wdev;
8f894be2 2673 struct sk_buff *msg, *event;
55682965
JB		 2674 int err;
2675 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2676 u32 flags;
55682965 2677
78f22b6a
JB		 2678 /* to avoid failing a new interface creation due to pending removal */
2679 cfg80211_destroy_ifaces(rdev);
2680
2ec600d6
LCC		 2681 memset(&params, 0, sizeof(params));
2682
55682965
JB		 2683 if (!info->attrs[NL80211_ATTR_IFNAME])
2684 return -EINVAL;
2685
2686 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2687 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2688 if (type > NL80211_IFTYPE_MAX)
2689 return -EINVAL;
2690 }
2691
79c97e97 2692 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2693 !(rdev->wiphy.interface_modes & (1 << type)))
2694 return -EOPNOTSUPP;
55682965 2695
e8f479b1
BG		 2696 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2697 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2698 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2699 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2700 ETH_ALEN);
2701 if (!is_valid_ether_addr(params.macaddr))
2702 return -EADDRNOTAVAIL;
2703 }
2704
9bc383de 2705 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2706 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2707 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2708 if (err)
4c476991 2709 return err;
9bc383de 2710 }
8b787643 2711
66f7ac50
MW		 2712 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2713 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2714 &flags);
e057d3c3 2715
18003297 2716 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2717 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2718 return -EOPNOTSUPP;
2719
a18c7192
JB		 2720 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2721 if (!msg)
2722 return -ENOMEM;
2723
e35e4d28
HG		 2724 wdev = rdev_add_virtual_intf(rdev,
2725 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2726 NET_NAME_USER, type, err ? NULL : &flags,
2727 &params);
d687cbb7
RM		 2728 if (WARN_ON(!wdev)) {
2729 nlmsg_free(msg);
2730 return -EPROTO;
2731 } else if (IS_ERR(wdev)) {
1c90f9d4 2732 nlmsg_free(msg);
84efbb84 2733 return PTR_ERR(wdev);
1c90f9d4 2734 }
2ec600d6 2735
18e5ca65 2736 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2737 wdev->owner_nlportid = info->snd_portid;
2738
98104fde
JB		 2739 switch (type) {
2740 case NL80211_IFTYPE_MESH_POINT:
2741 if (!info->attrs[NL80211_ATTR_MESH_ID])
2742 break;
29cbe68c
JB		 2743 wdev_lock(wdev);
2744 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2745 IEEE80211_MAX_MESH_ID_LEN);
2746 wdev->mesh_id_up_len =
2747 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2748 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2749 wdev->mesh_id_up_len);
2750 wdev_unlock(wdev);
98104fde
JB		 2751 break;
2752 case NL80211_IFTYPE_P2P_DEVICE:
2753 /*
2754 * P2P Device doesn't have a netdev, so doesn't go
2755 * through the netdev notifier and must be added here
2756 */
2757 mutex_init(&wdev->mtx);
2758 INIT_LIST_HEAD(&wdev->event_list);
2759 spin_lock_init(&wdev->event_lock);
2760 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2761 spin_lock_init(&wdev->mgmt_registrations_lock);
2762
98104fde
JB		 2763 wdev->identifier = ++rdev->wdev_id;
2764 list_add_rcu(&wdev->list, &rdev->wdev_list);
2765 rdev->devlist_generation++;
98104fde
JB		 2766 break;
2767 default:
2768 break;
29cbe68c
JB		 2769 }
2770
15e47304 2771 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2772 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2773 nlmsg_free(msg);
2774 return -ENOBUFS;
2775 }
2776
8f894be2
TB		 2777 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2778 if (event) {
2779 if (nl80211_send_iface(event, 0, 0, 0,
2780 rdev, wdev, false) < 0) {
2781 nlmsg_free(event);
2782 goto out;
2783 }
2784
2785 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2786 event, 0, NL80211_MCGRP_CONFIG,
2787 GFP_KERNEL);
2788 }
2789
2790out:
1c90f9d4 2791 return genlmsg_reply(msg, info);
55682965
JB		 2792}
2793
2794static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2795{
4c476991 2796 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2797 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2798 struct sk_buff *msg;
2799 int status;
55682965 2800
4c476991
JB		 2801 if (!rdev->ops->del_virtual_intf)
2802 return -EOPNOTSUPP;
55682965 2803
8f894be2
TB		 2804 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2805 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2806 nlmsg_free(msg);
2807 msg = NULL;
2808 }
2809
84efbb84
JB		 2810 /*
2811 * If we remove a wireless device without a netdev then clear
2812 * user_ptr[1] so that nl80211_post_doit won't dereference it
2813 * to check if it needs to do dev_put(). Otherwise it crashes
2814 * since the wdev has been freed, unlike with a netdev where
2815 * we need the dev_put() for the netdev to really be freed.
2816 */
2817 if (!wdev->netdev)
2818 info->user_ptr[1] = NULL;
2819
8f894be2
TB		 2820 status = rdev_del_virtual_intf(rdev, wdev);
2821 if (status >= 0 && msg)
2822 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2823 msg, 0, NL80211_MCGRP_CONFIG,
2824 GFP_KERNEL);
2825 else
2826 nlmsg_free(msg);
2827
2828 return status;
55682965
JB		 2829}
2830
1d9d9213
SW		 2831static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2832{
2833 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2834 struct net_device *dev = info->user_ptr[1];
2835 u16 noack_map;
2836
2837 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2838 return -EINVAL;
2839
2840 if (!rdev->ops->set_noack_map)
2841 return -EOPNOTSUPP;
2842
2843 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2844
e35e4d28 2845 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2846}
2847
41ade00f
JB		 2848struct get_key_cookie {
2849 struct sk_buff *msg;
2850 int error;
b9454e83 2851 int idx;
41ade00f
JB		 2852};
2853
2854static void get_key_callback(void *c, struct key_params *params)
2855{
b9454e83 2856 struct nlattr *key;
41ade00f
JB		 2857 struct get_key_cookie *cookie = c;
2858
9360ffd1
DM		 2859 if ((params->key &&
2860 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2861 params->key_len, params->key)) ||
2862 (params->seq &&
2863 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2864 params->seq_len, params->seq)) ||
2865 (params->cipher &&
2866 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2867 params->cipher)))
2868 goto nla_put_failure;
41ade00f 2869
b9454e83
JB		 2870 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2871 if (!key)
2872 goto nla_put_failure;
2873
9360ffd1
DM		 2874 if ((params->key &&
2875 nla_put(cookie->msg, NL80211_KEY_DATA,
2876 params->key_len, params->key)) ||
2877 (params->seq &&
2878 nla_put(cookie->msg, NL80211_KEY_SEQ,
2879 params->seq_len, params->seq)) ||
2880 (params->cipher &&
2881 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2882 params->cipher)))
2883 goto nla_put_failure;
b9454e83 2884
9360ffd1
DM		 2885 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2886 goto nla_put_failure;
b9454e83
JB		 2887
2888 nla_nest_end(cookie->msg, key);
2889
41ade00f
JB		 2890 return;
2891 nla_put_failure:
2892 cookie->error = 1;
2893}
2894
2895static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2896{
4c476991 2897 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2898 int err;
4c476991 2899 struct net_device *dev = info->user_ptr[1];
41ade00f 2900 u8 key_idx = 0;
e31b8213
JB		 2901 const u8 *mac_addr = NULL;
2902 bool pairwise;
41ade00f
JB		 2903 struct get_key_cookie cookie = {
2904 .error = 0,
2905 };
2906 void *hdr;
2907 struct sk_buff *msg;
2908
2909 if (info->attrs[NL80211_ATTR_KEY_IDX])
2910 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2911
3cfcf6ac 2912 if (key_idx > 5)
41ade00f
JB		 2913 return -EINVAL;
2914
2915 if (info->attrs[NL80211_ATTR_MAC])
2916 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2917
e31b8213
JB		 2918 pairwise = !!mac_addr;
2919 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2920 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2921 if (kt >= NUM_NL80211_KEYTYPES)
2922 return -EINVAL;
2923 if (kt != NL80211_KEYTYPE_GROUP &&
2924 kt != NL80211_KEYTYPE_PAIRWISE)
2925 return -EINVAL;
2926 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2927 }
2928
4c476991
JB		 2929 if (!rdev->ops->get_key)
2930 return -EOPNOTSUPP;
41ade00f 2931
0fa7b391
JB		 2932 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2933 return -ENOENT;
2934
fd2120ca 2935 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2936 if (!msg)
2937 return -ENOMEM;
41ade00f 2938
15e47304 2939 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2940 NL80211_CMD_NEW_KEY);
cb35fba3 2941 if (!hdr)
9fe271af 2942 goto nla_put_failure;
41ade00f
JB		 2943
2944 cookie.msg = msg;
b9454e83 2945 cookie.idx = key_idx;
41ade00f 2946
9360ffd1
DM		 2947 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2948 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2949 goto nla_put_failure;
2950 if (mac_addr &&
2951 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2952 goto nla_put_failure;
41ade00f 2953
e35e4d28
HG		 2954 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2955 get_key_callback);
41ade00f
JB		 2956
2957 if (err)
6c95e2a2 2958 goto free_msg;
41ade00f
JB		 2959
2960 if (cookie.error)
2961 goto nla_put_failure;
2962
2963 genlmsg_end(msg, hdr);
4c476991 2964 return genlmsg_reply(msg, info);
41ade00f
JB		 2965
2966 nla_put_failure:
2967 err = -ENOBUFS;
6c95e2a2 2968 free_msg:
41ade00f 2969 nlmsg_free(msg);
41ade00f
JB		 2970 return err;
2971}
2972
2973static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2974{
4c476991 2975 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2976 struct key_parse key;
41ade00f 2977 int err;
4c476991 2978 struct net_device *dev = info->user_ptr[1];
41ade00f 2979
b9454e83
JB		 2980 err = nl80211_parse_key(info, &key);
2981 if (err)
2982 return err;
41ade00f 2983
b9454e83 2984 if (key.idx < 0)
41ade00f
JB		 2985 return -EINVAL;
2986
b9454e83
JB		 2987 /* only support setting default key */
2988 if (!key.def && !key.defmgmt)
41ade00f
JB		 2989 return -EINVAL;
2990
dbd2fd65 2991 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2992
dbd2fd65
JB		 2993 if (key.def) {
2994 if (!rdev->ops->set_default_key) {
2995 err = -EOPNOTSUPP;
2996 goto out;
2997 }
41ade00f 2998
dbd2fd65
JB		 2999 err = nl80211_key_allowed(dev->ieee80211_ptr);
3000 if (err)
3001 goto out;
3002
e35e4d28 3003 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 3004 key.def_uni, key.def_multi);
3005
3006 if (err)
3007 goto out;
fffd0934 3008
3d23e349 3009#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 3010 dev->ieee80211_ptr->wext.default_key = key.idx;
3011#endif
3012 } else {
3013 if (key.def_uni || !key.def_multi) {
3014 err = -EINVAL;
3015 goto out;
3016 }
3017
3018 if (!rdev->ops->set_default_mgmt_key) {
3019 err = -EOPNOTSUPP;
3020 goto out;
3021 }
3022
3023 err = nl80211_key_allowed(dev->ieee80211_ptr);
3024 if (err)
3025 goto out;
3026
e35e4d28 3027 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 3028 if (err)
3029 goto out;
3030
3031#ifdef CONFIG_CFG80211_WEXT
3032 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3033#endif
dbd2fd65
JB		 3034 }
3035
3036 out:
fffd0934 3037 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3038
41ade00f
JB		 3039 return err;
3040}
3041
3042static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3043{
4c476991 3044 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3045 int err;
4c476991 3046 struct net_device *dev = info->user_ptr[1];
b9454e83 3047 struct key_parse key;
e31b8213 3048 const u8 *mac_addr = NULL;
41ade00f 3049
b9454e83
JB		 3050 err = nl80211_parse_key(info, &key);
3051 if (err)
3052 return err;
41ade00f 3053
b9454e83 3054 if (!key.p.key)
41ade00f
JB		 3055 return -EINVAL;
3056
41ade00f
JB		 3057 if (info->attrs[NL80211_ATTR_MAC])
3058 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3059
e31b8213
JB		 3060 if (key.type == -1) {
3061 if (mac_addr)
3062 key.type = NL80211_KEYTYPE_PAIRWISE;
3063 else
3064 key.type = NL80211_KEYTYPE_GROUP;
3065 }
3066
3067 /* for now */
3068 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3069 key.type != NL80211_KEYTYPE_GROUP)
3070 return -EINVAL;
3071
4c476991
JB		 3072 if (!rdev->ops->add_key)
3073 return -EOPNOTSUPP;
25e47c18 3074
e31b8213
JB		 3075 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3076 key.type == NL80211_KEYTYPE_PAIRWISE,
3077 mac_addr))
4c476991 3078 return -EINVAL;
41ade00f 3079
fffd0934
JB		 3080 wdev_lock(dev->ieee80211_ptr);
3081 err = nl80211_key_allowed(dev->ieee80211_ptr);
3082 if (!err)
e35e4d28
HG		 3083 err = rdev_add_key(rdev, dev, key.idx,
3084 key.type == NL80211_KEYTYPE_PAIRWISE,
3085 mac_addr, &key.p);
fffd0934 3086 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3087
41ade00f
JB		 3088 return err;
3089}
3090
3091static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3092{
4c476991 3093 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3094 int err;
4c476991 3095 struct net_device *dev = info->user_ptr[1];
41ade00f 3096 u8 *mac_addr = NULL;
b9454e83 3097 struct key_parse key;
41ade00f 3098
b9454e83
JB		 3099 err = nl80211_parse_key(info, &key);
3100 if (err)
3101 return err;
41ade00f
JB		 3102
3103 if (info->attrs[NL80211_ATTR_MAC])
3104 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3105
e31b8213
JB		 3106 if (key.type == -1) {
3107 if (mac_addr)
3108 key.type = NL80211_KEYTYPE_PAIRWISE;
3109 else
3110 key.type = NL80211_KEYTYPE_GROUP;
3111 }
3112
3113 /* for now */
3114 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3115 key.type != NL80211_KEYTYPE_GROUP)
3116 return -EINVAL;
3117
4c476991
JB		 3118 if (!rdev->ops->del_key)
3119 return -EOPNOTSUPP;
41ade00f 3120
fffd0934
JB		 3121 wdev_lock(dev->ieee80211_ptr);
3122 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3123
0fa7b391 3124 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3125 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3126 err = -ENOENT;
3127
fffd0934 3128 if (!err)
e35e4d28
HG		 3129 err = rdev_del_key(rdev, dev, key.idx,
3130 key.type == NL80211_KEYTYPE_PAIRWISE,
3131 mac_addr);
41ade00f 3132
3d23e349 3133#ifdef CONFIG_CFG80211_WEXT
08645126 3134 if (!err) {
b9454e83 3135 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3136 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3137 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3138 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3139 }
3140#endif
fffd0934 3141 wdev_unlock(dev->ieee80211_ptr);
08645126 3142
41ade00f
JB		 3143 return err;
3144}
3145
77765eaf
VT		 3146/* This function returns an error or the number of nested attributes */
3147static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3148{
3149 struct nlattr *attr;
3150 int n_entries = 0, tmp;
3151
3152 nla_for_each_nested(attr, nl_attr, tmp) {
3153 if (nla_len(attr) != ETH_ALEN)
3154 return -EINVAL;
3155
3156 n_entries++;
3157 }
3158
3159 return n_entries;
3160}
3161
3162/*
3163 * This function parses ACL information and allocates memory for ACL data.
3164 * On successful return, the calling function is responsible to free the
3165 * ACL buffer returned by this function.
3166 */
3167static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3168 struct genl_info *info)
3169{
3170 enum nl80211_acl_policy acl_policy;
3171 struct nlattr *attr;
3172 struct cfg80211_acl_data *acl;
3173 int i = 0, n_entries, tmp;
3174
3175 if (!wiphy->max_acl_mac_addrs)
3176 return ERR_PTR(-EOPNOTSUPP);
3177
3178 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3179 return ERR_PTR(-EINVAL);
3180
3181 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3182 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3183 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3184 return ERR_PTR(-EINVAL);
3185
3186 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3187 return ERR_PTR(-EINVAL);
3188
3189 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3190 if (n_entries < 0)
3191 return ERR_PTR(n_entries);
3192
3193 if (n_entries > wiphy->max_acl_mac_addrs)
3194 return ERR_PTR(-ENOTSUPP);
3195
3196 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3197 GFP_KERNEL);
3198 if (!acl)
3199 return ERR_PTR(-ENOMEM);
3200
3201 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3202 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3203 i++;
3204 }
3205
3206 acl->n_acl_entries = n_entries;
3207 acl->acl_policy = acl_policy;
3208
3209 return acl;
3210}
3211
3212static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3213{
3214 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3215 struct net_device *dev = info->user_ptr[1];
3216 struct cfg80211_acl_data *acl;
3217 int err;
3218
3219 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3220 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3221 return -EOPNOTSUPP;
3222
3223 if (!dev->ieee80211_ptr->beacon_interval)
3224 return -EINVAL;
3225
3226 acl = parse_acl_data(&rdev->wiphy, info);
3227 if (IS_ERR(acl))
3228 return PTR_ERR(acl);
3229
3230 err = rdev_set_mac_acl(rdev, dev, acl);
3231
3232 kfree(acl);
3233
3234 return err;
3235}
3236
a1193be8 3237static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3238 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3239{
8860020e 3240 bool haveinfo = false;
ed1b6cc7 3241
a1193be8
SW		 3242 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3243 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3244 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3245 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3246 return -EINVAL;
3247
8860020e 3248 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3249
a1193be8
SW		 3250 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3251 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3252 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3253 if (!bcn->head_len)
3254 return -EINVAL;
3255 haveinfo = true;
ed1b6cc7
JB		 3256 }
3257
a1193be8
SW		 3258 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3259 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3260 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3261 haveinfo = true;
ed1b6cc7
JB		 3262 }
3263
4c476991
JB		 3264 if (!haveinfo)
3265 return -EINVAL;
3b85875a 3266
a1193be8
SW		 3267 if (attrs[NL80211_ATTR_IE]) {
3268 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3269 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3270 }
3271
a1193be8 3272 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3273 bcn->proberesp_ies =
a1193be8 3274 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3275 bcn->proberesp_ies_len =
a1193be8 3276 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3277 }
3278
a1193be8 3279 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3280 bcn->assocresp_ies =
a1193be8 3281 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3282 bcn->assocresp_ies_len =
a1193be8 3283 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3284 }
3285
a1193be8
SW		 3286 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3287 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3288 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3289 }
3290
8860020e
JB		 3291 return 0;
3292}
3293
46c1dd0c
FF		 3294static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3295 struct cfg80211_ap_settings *params)
3296{
3297 struct wireless_dev *wdev;
3298 bool ret = false;
3299
89a54e48 3300 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3301 if (wdev->iftype != NL80211_IFTYPE_AP &&
3302 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3303 continue;
3304
683b6d3b 3305 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3306 continue;
3307
683b6d3b 3308 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3309 ret = true;
3310 break;
3311 }
3312
46c1dd0c
FF		 3313 return ret;
3314}
3315
e39e5b5e
JM		 3316static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3317 enum nl80211_auth_type auth_type,
3318 enum nl80211_commands cmd)
3319{
3320 if (auth_type > NL80211_AUTHTYPE_MAX)
3321 return false;
3322
3323 switch (cmd) {
3324 case NL80211_CMD_AUTHENTICATE:
3325 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3326 auth_type == NL80211_AUTHTYPE_SAE)
3327 return false;
3328 return true;
3329 case NL80211_CMD_CONNECT:
3330 case NL80211_CMD_START_AP:
3331 /* SAE not supported yet */
3332 if (auth_type == NL80211_AUTHTYPE_SAE)
3333 return false;
3334 return true;
3335 default:
3336 return false;
3337 }
3338}
3339
8860020e
JB		 3340static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3341{
3342 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3343 struct net_device *dev = info->user_ptr[1];
3344 struct wireless_dev *wdev = dev->ieee80211_ptr;
3345 struct cfg80211_ap_settings params;
3346 int err;
3347
3348 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3349 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3350 return -EOPNOTSUPP;
3351
3352 if (!rdev->ops->start_ap)
3353 return -EOPNOTSUPP;
3354
3355 if (wdev->beacon_interval)
3356 return -EALREADY;
3357
3358 memset(&params, 0, sizeof(params));
3359
3360 /* these are required for START_AP */
3361 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3362 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3363 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3364 return -EINVAL;
3365
a1193be8 3366 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3367 if (err)
3368 return err;
3369
3370 params.beacon_interval =
3371 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3372 params.dtim_period =
3373 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3374
3375 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3376 if (err)
3377 return err;
3378
3379 /*
3380 * In theory, some of these attributes should be required here
3381 * but since they were not used when the command was originally
3382 * added, keep them optional for old user space programs to let
3383 * them continue to work with drivers that do not need the
3384 * additional information -- drivers must check!
3385 */
3386 if (info->attrs[NL80211_ATTR_SSID]) {
3387 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3388 params.ssid_len =
3389 nla_len(info->attrs[NL80211_ATTR_SSID]);
3390 if (params.ssid_len == 0 ||
3391 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3392 return -EINVAL;
3393 }
3394
3395 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3396 params.hidden_ssid = nla_get_u32(
3397 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3398 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3399 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3400 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3401 return -EINVAL;
3402 }
3403
3404 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3405
3406 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3407 params.auth_type = nla_get_u32(
3408 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3409 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3410 NL80211_CMD_START_AP))
8860020e
JB		 3411 return -EINVAL;
3412 } else
3413 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3414
3415 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3416 NL80211_MAX_NR_CIPHER_SUITES);
3417 if (err)
3418 return err;
3419
1b658f11
VT		 3420 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3421 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3422 return -EOPNOTSUPP;
3423 params.inactivity_timeout = nla_get_u16(
3424 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3425 }
3426
53cabad7
JB		 3427 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3428 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3429 return -EINVAL;
3430 params.p2p_ctwindow =
3431 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3432 if (params.p2p_ctwindow > 127)
3433 return -EINVAL;
3434 if (params.p2p_ctwindow != 0 &&
3435 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3436 return -EINVAL;
3437 }
3438
3439 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3440 u8 tmp;
3441
3442 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3443 return -EINVAL;
3444 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3445 if (tmp > 1)
3446 return -EINVAL;
3447 params.p2p_opp_ps = tmp;
3448 if (params.p2p_opp_ps != 0 &&
3449 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3450 return -EINVAL;
3451 }
3452
aa430da4 3453 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3454 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3455 if (err)
3456 return err;
3457 } else if (wdev->preset_chandef.chan) {
3458 params.chandef = wdev->preset_chandef;
46c1dd0c 3459 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3460 return -EINVAL;
3461
923b352f
AN		 3462 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3463 wdev->iftype))
aa430da4
JB		 3464 return -EINVAL;
3465
18998c38
EP		 3466 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3467 params.smps_mode =
3468 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3469 switch (params.smps_mode) {
3470 case NL80211_SMPS_OFF:
3471 break;
3472 case NL80211_SMPS_STATIC:
3473 if (!(rdev->wiphy.features &
3474 NL80211_FEATURE_STATIC_SMPS))
3475 return -EINVAL;
3476 break;
3477 case NL80211_SMPS_DYNAMIC:
3478 if (!(rdev->wiphy.features &
3479 NL80211_FEATURE_DYNAMIC_SMPS))
3480 return -EINVAL;
3481 break;
3482 default:
3483 return -EINVAL;
3484 }
3485 } else {
3486 params.smps_mode = NL80211_SMPS_OFF;
3487 }
3488
4baf6bea
OO		 3489 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3490 params.acl = parse_acl_data(&rdev->wiphy, info);
3491 if (IS_ERR(params.acl))
3492 return PTR_ERR(params.acl);
3493 }
3494
34d50519
LD		 3495 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
3496 if (params.pbss && !rdev->wiphy.bands[IEEE80211_BAND_60GHZ])
3497 return -EOPNOTSUPP;
3498
c56589ed 3499 wdev_lock(wdev);
e35e4d28 3500 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3501 if (!err) {
683b6d3b 3502 wdev->preset_chandef = params.chandef;
8860020e 3503 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3504 wdev->chandef = params.chandef;
06e191e2
AQ		 3505 wdev->ssid_len = params.ssid_len;
3506 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3507 }
c56589ed 3508 wdev_unlock(wdev);
77765eaf
VT		 3509
3510 kfree(params.acl);
3511
56d1893d 3512 return err;
ed1b6cc7
JB		 3513}
3514
8860020e
JB		 3515static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3516{
3517 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3518 struct net_device *dev = info->user_ptr[1];
3519 struct wireless_dev *wdev = dev->ieee80211_ptr;
3520 struct cfg80211_beacon_data params;
3521 int err;
3522
3523 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3524 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3525 return -EOPNOTSUPP;
3526
3527 if (!rdev->ops->change_beacon)
3528 return -EOPNOTSUPP;
3529
3530 if (!wdev->beacon_interval)
3531 return -EINVAL;
3532
a1193be8 3533 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3534 if (err)
3535 return err;
3536
c56589ed
SW		 3537 wdev_lock(wdev);
3538 err = rdev_change_beacon(rdev, dev, &params);
3539 wdev_unlock(wdev);
3540
3541 return err;
8860020e
JB		 3542}
3543
3544static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3545{
4c476991
JB		 3546 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3547 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3548
7c8d5e03 3549 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3550}
3551
5727ef1b
JB		 3552static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3553 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3554 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3555 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3556 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3557 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3558 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3559};
3560
eccb8e8f 3561static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3562 enum nl80211_iftype iftype,
eccb8e8f 3563 struct station_parameters *params)
5727ef1b
JB		 3564{
3565 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3566 struct nlattr *nla;
5727ef1b
JB		 3567 int flag;
3568
eccb8e8f
JB		 3569 /*
3570 * Try parsing the new attribute first so userspace
3571 * can specify both for older kernels.
3572 */
3573 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3574 if (nla) {
3575 struct nl80211_sta_flag_update *sta_flags;
3576
3577 sta_flags = nla_data(nla);
3578 params->sta_flags_mask = sta_flags->mask;
3579 params->sta_flags_set = sta_flags->set;
77ee7c89 3580 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3581 if ((params->sta_flags_mask |
3582 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3583 return -EINVAL;
3584 return 0;
3585 }
3586
3587 /* if present, parse the old attribute */
5727ef1b 3588
eccb8e8f 3589 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3590 if (!nla)
3591 return 0;
3592
3593 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3594 nla, sta_flags_policy))
3595 return -EINVAL;
3596
bdd3ae3d
JB		 3597 /*
3598 * Only allow certain flags for interface types so that
3599 * other attributes are silently ignored. Remember that
3600 * this is backward compatibility code with old userspace
3601 * and shouldn't be hit in other cases anyway.
3602 */
3603 switch (iftype) {
3604 case NL80211_IFTYPE_AP:
3605 case NL80211_IFTYPE_AP_VLAN:
3606 case NL80211_IFTYPE_P2P_GO:
3607 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3608 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3609 BIT(NL80211_STA_FLAG_WME) |
3610 BIT(NL80211_STA_FLAG_MFP);
3611 break;
3612 case NL80211_IFTYPE_P2P_CLIENT:
3613 case NL80211_IFTYPE_STATION:
3614 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3615 BIT(NL80211_STA_FLAG_TDLS_PEER);
3616 break;
3617 case NL80211_IFTYPE_MESH_POINT:
3618 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3619 BIT(NL80211_STA_FLAG_MFP) |
3620 BIT(NL80211_STA_FLAG_AUTHORIZED);
3621 default:
3622 return -EINVAL;
3623 }
5727ef1b 3624
3383b5a6
JB		 3625 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3626 if (flags[flag]) {
eccb8e8f 3627 params->sta_flags_set |= (1<<flag);
5727ef1b 3628
3383b5a6
JB		 3629 /* no longer support new API additions in old API */
3630 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3631 return -EINVAL;
3632 }
3633 }
3634
5727ef1b
JB		 3635 return 0;
3636}
3637
c8dcfd8a
FF		 3638static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3639 int attr)
3640{
3641 struct nlattr *rate;
8eb41c8d
VK		 3642 u32 bitrate;
3643 u16 bitrate_compat;
b51f3bee 3644 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 3645
3646 rate = nla_nest_start(msg, attr);
3647 if (!rate)
db9c64cf 3648 return false;
c8dcfd8a
FF		 3649
3650 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3651 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3652 /* report 16-bit bitrate only if we can */
3653 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3654 if (bitrate > 0 &&
3655 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3656 return false;
3657 if (bitrate_compat > 0 &&
3658 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3659 return false;
3660
b51f3bee
JB		 3661 switch (info->bw) {
3662 case RATE_INFO_BW_5:
3663 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3664 break;
3665 case RATE_INFO_BW_10:
3666 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3667 break;
3668 default:
3669 WARN_ON(1);
3670 /* fall through */
3671 case RATE_INFO_BW_20:
3672 rate_flg = 0;
3673 break;
3674 case RATE_INFO_BW_40:
3675 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3676 break;
3677 case RATE_INFO_BW_80:
3678 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3679 break;
3680 case RATE_INFO_BW_160:
3681 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3682 break;
3683 }
3684
3685 if (rate_flg && nla_put_flag(msg, rate_flg))
3686 return false;
3687
db9c64cf
JB		 3688 if (info->flags & RATE_INFO_FLAGS_MCS) {
3689 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3690 return false;
db9c64cf
JB		 3691 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3692 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3693 return false;
3694 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3695 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3696 return false;
3697 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3698 return false;
db9c64cf
JB		 3699 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3700 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3701 return false;
3702 }
c8dcfd8a
FF		 3703
3704 nla_nest_end(msg, rate);
3705 return true;
c8dcfd8a
FF		 3706}
3707
119363c7
FF		 3708static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3709 int id)
3710{
3711 void *attr;
3712 int i = 0;
3713
3714 if (!mask)
3715 return true;
3716
3717 attr = nla_nest_start(msg, id);
3718 if (!attr)
3719 return false;
3720
3721 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3722 if (!(mask & BIT(i)))
3723 continue;
3724
3725 if (nla_put_u8(msg, i, signal[i]))
3726 return false;
3727 }
3728
3729 nla_nest_end(msg, attr);
3730
3731 return true;
3732}
3733
cf5ead82
JB		 3734static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3735 u32 seq, int flags,
66266b3a
JL		 3736 struct cfg80211_registered_device *rdev,
3737 struct net_device *dev,
98b62183 3738 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3739{
3740 void *hdr;
f4263c98 3741 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3742
cf5ead82 3743 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 3744 if (!hdr)
3745 return -1;
3746
9360ffd1
DM		 3747 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3748 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3749 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3750 goto nla_put_failure;
f5ea9120 3751
2ec600d6
LCC		 3752 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3753 if (!sinfoattr)
fd5b74dc 3754 goto nla_put_failure;
319090bf
JB		 3755
3756#define PUT_SINFO(attr, memb, type) do { \
3757 if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \
3758 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3759 sinfo->memb)) \
3760 goto nla_put_failure; \
3761 } while (0)
3762
3763 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3764 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3765
3766 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3767 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 3768 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3769 (u32)sinfo->rx_bytes))
9360ffd1 3770 goto nla_put_failure;
319090bf
JB		 3771
3772 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3773 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3774 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3775 (u32)sinfo->tx_bytes))
3776 goto nla_put_failure;
319090bf
JB		 3777
3778 PUT_SINFO(RX_BYTES64, rx_bytes, u64);
3779 PUT_SINFO(TX_BYTES64, tx_bytes, u64);
3780 PUT_SINFO(LLID, llid, u16);
3781 PUT_SINFO(PLID, plid, u16);
3782 PUT_SINFO(PLINK_STATE, plink_state, u8);
3783
66266b3a
JL		 3784 switch (rdev->wiphy.signal_type) {
3785 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 3786 PUT_SINFO(SIGNAL, signal, u8);
3787 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 3788 break;
3789 default:
3790 break;
3791 }
319090bf 3792 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 3793 if (!nl80211_put_signal(msg, sinfo->chains,
3794 sinfo->chain_signal,
3795 NL80211_STA_INFO_CHAIN_SIGNAL))
3796 goto nla_put_failure;
3797 }
319090bf 3798 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 3799 if (!nl80211_put_signal(msg, sinfo->chains,
3800 sinfo->chain_signal_avg,
3801 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3802 goto nla_put_failure;
3803 }
319090bf 3804 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 3805 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3806 NL80211_STA_INFO_TX_BITRATE))
3807 goto nla_put_failure;
3808 }
319090bf 3809 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 3810 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3811 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3812 goto nla_put_failure;
420e7fab 3813 }
319090bf
JB		 3814
3815 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3816 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3817 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3818 PUT_SINFO(TX_FAILED, tx_failed, u32);
3819 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3820 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3821 PUT_SINFO(LOCAL_PM, local_pm, u32);
3822 PUT_SINFO(PEER_PM, peer_pm, u32);
3823 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3824
3825 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 3826 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3827 if (!bss_param)
3828 goto nla_put_failure;
3829
9360ffd1
DM		 3830 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3831 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3832 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3833 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3834 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3835 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3836 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3837 sinfo->bss_param.dtim_period) ||
3838 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3839 sinfo->bss_param.beacon_interval))
3840 goto nla_put_failure;
f4263c98
PS		 3841
3842 nla_nest_end(msg, bss_param);
3843 }
319090bf 3844 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 3845 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3846 sizeof(struct nl80211_sta_flag_update),
3847 &sinfo->sta_flags))
3848 goto nla_put_failure;
319090bf
JB		 3849
3850 PUT_SINFO(T_OFFSET, t_offset, u64);
3851 PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64);
a76b1942
JB		 3852 PUT_SINFO(BEACON_RX, rx_beacon, u64);
3853 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 3854
3855#undef PUT_SINFO
6de39808
JB		 3856
3857 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3858 struct nlattr *tidsattr;
3859 int tid;
3860
3861 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3862 if (!tidsattr)
3863 goto nla_put_failure;
3864
3865 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3866 struct cfg80211_tid_stats *tidstats;
3867 struct nlattr *tidattr;
3868
3869 tidstats = &sinfo->pertid[tid];
3870
3871 if (!tidstats->filled)
3872 continue;
3873
3874 tidattr = nla_nest_start(msg, tid + 1);
3875 if (!tidattr)
3876 goto nla_put_failure;
3877
3878#define PUT_TIDVAL(attr, memb, type) do { \
3879 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3880 nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
3881 tidstats->memb)) \
3882 goto nla_put_failure; \
3883 } while (0)
3884
3885 PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
3886 PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
3887 PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
3888 PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
3889
3890#undef PUT_TIDVAL
3891 nla_nest_end(msg, tidattr);
3892 }
3893
3894 nla_nest_end(msg, tidsattr);
3895 }
3896
2ec600d6 3897 nla_nest_end(msg, sinfoattr);
fd5b74dc 3898
319090bf 3899 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 3900 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3901 sinfo->assoc_req_ies))
3902 goto nla_put_failure;
50d3dfb7 3903
053c095a
JB		 3904 genlmsg_end(msg, hdr);
3905 return 0;
fd5b74dc
JB		 3906
3907 nla_put_failure:
bc3ed28c
TG		 3908 genlmsg_cancel(msg, hdr);
3909 return -EMSGSIZE;
fd5b74dc
JB		 3910}
3911
2ec600d6 3912static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3913 struct netlink_callback *cb)
2ec600d6 3914{
2ec600d6 3915 struct station_info sinfo;
1b8ec87a 3916 struct cfg80211_registered_device *rdev;
97990a06 3917 struct wireless_dev *wdev;
2ec600d6 3918 u8 mac_addr[ETH_ALEN];
97990a06 3919 int sta_idx = cb->args[2];
2ec600d6 3920 int err;
2ec600d6 3921
1b8ec87a 3922 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3923 if (err)
3924 return err;
bba95fef 3925
97990a06
JB		 3926 if (!wdev->netdev) {
3927 err = -EINVAL;
3928 goto out_err;
3929 }
3930
1b8ec87a 3931 if (!rdev->ops->dump_station) {
eec60b03 3932 err = -EOPNOTSUPP;
bba95fef
JB		 3933 goto out_err;
3934 }
3935
bba95fef 3936 while (1) {
f612cedf 3937 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3938 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3939 mac_addr, &sinfo);
bba95fef
JB		 3940 if (err == -ENOENT)
3941 break;
3942 if (err)
3b85875a 3943 goto out_err;
bba95fef 3944
cf5ead82 3945 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 3946 NETLINK_CB(cb->skb).portid,
bba95fef 3947 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3948 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3949 &sinfo) < 0)
3950 goto out;
3951
3952 sta_idx++;
3953 }
3954
3955
3956 out:
97990a06 3957 cb->args[2] = sta_idx;
bba95fef 3958 err = skb->len;
bba95fef 3959 out_err:
1b8ec87a 3960 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3961
3962 return err;
2ec600d6 3963}
fd5b74dc 3964
5727ef1b
JB		 3965static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3966{
4c476991
JB		 3967 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3968 struct net_device *dev = info->user_ptr[1];
2ec600d6 3969 struct station_info sinfo;
fd5b74dc
JB		 3970 struct sk_buff *msg;
3971 u8 *mac_addr = NULL;
4c476991 3972 int err;
fd5b74dc 3973
2ec600d6 3974 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3975
3976 if (!info->attrs[NL80211_ATTR_MAC])
3977 return -EINVAL;
3978
3979 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3980
4c476991
JB		 3981 if (!rdev->ops->get_station)
3982 return -EOPNOTSUPP;
3b85875a 3983
e35e4d28 3984 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3985 if (err)
4c476991 3986 return err;
2ec600d6 3987
fd2120ca 3988 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3989 if (!msg)
4c476991 3990 return -ENOMEM;
fd5b74dc 3991
cf5ead82
JB		 3992 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
3993 info->snd_portid, info->snd_seq, 0,
66266b3a 3994 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3995 nlmsg_free(msg);
3996 return -ENOBUFS;
3997 }
3b85875a 3998
4c476991 3999 return genlmsg_reply(msg, info);
5727ef1b
JB		 4000}
4001
77ee7c89
JB		 4002int cfg80211_check_station_change(struct wiphy *wiphy,
4003 struct station_parameters *params,
4004 enum cfg80211_station_type statype)
4005{
e4208427
AB		 4006 if (params->listen_interval != -1 &&
4007 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4008 return -EINVAL;
e4208427 4009
17b94247
AB		 4010 if (params->support_p2p_ps != -1 &&
4011 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4012 return -EINVAL;
4013
c72e1140 4014 if (params->aid &&
e4208427
AB		 4015 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4016 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4017 return -EINVAL;
4018
4019 /* When you run into this, adjust the code below for the new flag */
4020 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4021
4022 switch (statype) {
eef941e6
TP		 4023 case CFG80211_STA_MESH_PEER_KERNEL:
4024 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4025 /*
4026 * No ignoring the TDLS flag here -- the userspace mesh
4027 * code doesn't have the bug of including TDLS in the
4028 * mask everywhere.
4029 */
4030 if (params->sta_flags_mask &
4031 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4032 BIT(NL80211_STA_FLAG_MFP) |
4033 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4034 return -EINVAL;
4035 break;
4036 case CFG80211_STA_TDLS_PEER_SETUP:
4037 case CFG80211_STA_TDLS_PEER_ACTIVE:
4038 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4039 return -EINVAL;
4040 /* ignore since it can't change */
4041 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4042 break;
4043 default:
4044 /* disallow mesh-specific things */
4045 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4046 return -EINVAL;
4047 if (params->local_pm)
4048 return -EINVAL;
4049 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4050 return -EINVAL;
4051 }
4052
4053 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4054 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4055 /* TDLS can't be set, ... */
4056 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4057 return -EINVAL;
4058 /*
4059 * ... but don't bother the driver with it. This works around
4060 * a hostapd/wpa_supplicant issue -- it always includes the
4061 * TLDS_PEER flag in the mask even for AP mode.
4062 */
4063 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4064 }
4065
47edb11b
AB		 4066 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4067 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4068 /* reject other things that can't change */
4069 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4070 return -EINVAL;
4071 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4072 return -EINVAL;
4073 if (params->supported_rates)
4074 return -EINVAL;
4075 if (params->ext_capab || params->ht_capa || params->vht_capa)
4076 return -EINVAL;
4077 }
4078
47edb11b
AB		 4079 if (statype != CFG80211_STA_AP_CLIENT &&
4080 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4081 if (params->vlan)
4082 return -EINVAL;
4083 }
4084
4085 switch (statype) {
4086 case CFG80211_STA_AP_MLME_CLIENT:
4087 /* Use this only for authorizing/unauthorizing a station */
4088 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4089 return -EOPNOTSUPP;
4090 break;
4091 case CFG80211_STA_AP_CLIENT:
47edb11b 4092 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4093 /* accept only the listed bits */
4094 if (params->sta_flags_mask &
4095 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4096 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4097 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4098 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4099 BIT(NL80211_STA_FLAG_WME) |
4100 BIT(NL80211_STA_FLAG_MFP)))
4101 return -EINVAL;
4102
4103 /* but authenticated/associated only if driver handles it */
4104 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4105 params->sta_flags_mask &
4106 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4107 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4108 return -EINVAL;
4109 break;
4110 case CFG80211_STA_IBSS:
4111 case CFG80211_STA_AP_STA:
4112 /* reject any changes other than AUTHORIZED */
4113 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4114 return -EINVAL;
4115 break;
4116 case CFG80211_STA_TDLS_PEER_SETUP:
4117 /* reject any changes other than AUTHORIZED or WME */
4118 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4119 BIT(NL80211_STA_FLAG_WME)))
4120 return -EINVAL;
4121 /* force (at least) rates when authorizing */
4122 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4123 !params->supported_rates)
4124 return -EINVAL;
4125 break;
4126 case CFG80211_STA_TDLS_PEER_ACTIVE:
4127 /* reject any changes */
4128 return -EINVAL;
eef941e6 4129 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4130 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4131 return -EINVAL;
4132 break;
eef941e6 4133 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4134 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4135 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4136 return -EINVAL;
4137 break;
4138 }
4139
4140 return 0;
4141}
4142EXPORT_SYMBOL(cfg80211_check_station_change);
4143
5727ef1b 4144/*
c258d2de 4145 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4146 */
80b99899
JB		 4147static struct net_device *get_vlan(struct genl_info *info,
4148 struct cfg80211_registered_device *rdev)
5727ef1b 4149{
463d0183 4150 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4151 struct net_device *v;
4152 int ret;
4153
4154 if (!vlanattr)
4155 return NULL;
4156
4157 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4158 if (!v)
4159 return ERR_PTR(-ENODEV);
4160
4161 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4162 ret = -EINVAL;
4163 goto error;
5727ef1b 4164 }
80b99899 4165
77ee7c89
JB		 4166 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4167 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4168 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4169 ret = -EINVAL;
4170 goto error;
4171 }
4172
80b99899
JB		 4173 if (!netif_running(v)) {
4174 ret = -ENETDOWN;
4175 goto error;
4176 }
4177
4178 return v;
4179 error:
4180 dev_put(v);
4181 return ERR_PTR(ret);
5727ef1b
JB		 4182}
4183
94e860f1
JB		 4184static const struct nla_policy
4185nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4186 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4187 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4188};
4189
ff276691
JB		 4190static int nl80211_parse_sta_wme(struct genl_info *info,
4191 struct station_parameters *params)
df881293 4192{
df881293
JM		 4193 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4194 struct nlattr *nla;
4195 int err;
4196
df881293
JM		 4197 /* parse WME attributes if present */
4198 if (!info->attrs[NL80211_ATTR_STA_WME])
4199 return 0;
4200
4201 nla = info->attrs[NL80211_ATTR_STA_WME];
4202 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4203 nl80211_sta_wme_policy);
4204 if (err)
4205 return err;
4206
4207 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4208 params->uapsd_queues = nla_get_u8(
4209 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4210 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4211 return -EINVAL;
4212
4213 if (tb[NL80211_STA_WME_MAX_SP])
4214 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4215
4216 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4217 return -EINVAL;
4218
4219 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4220
4221 return 0;
4222}
4223
c01fc9ad
SD		 4224static int nl80211_parse_sta_channel_info(struct genl_info *info,
4225 struct station_parameters *params)
4226{
4227 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4228 params->supported_channels =
4229 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4230 params->supported_channels_len =
4231 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4232 /*
4233 * Need to include at least one (first channel, number of
4234 * channels) tuple for each subband, and must have proper
4235 * tuples for the rest of the data as well.
4236 */
4237 if (params->supported_channels_len < 2)
4238 return -EINVAL;
4239 if (params->supported_channels_len % 2)
4240 return -EINVAL;
4241 }
4242
4243 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4244 params->supported_oper_classes =
4245 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4246 params->supported_oper_classes_len =
4247 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4248 /*
4249 * The value of the Length field of the Supported Operating
4250 * Classes element is between 2 and 253.
4251 */
4252 if (params->supported_oper_classes_len < 2 ||
4253 params->supported_oper_classes_len > 253)
4254 return -EINVAL;
4255 }
4256 return 0;
4257}
4258
ff276691
JB		 4259static int nl80211_set_station_tdls(struct genl_info *info,
4260 struct station_parameters *params)
4261{
c01fc9ad 4262 int err;
ff276691 4263 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4264 if (info->attrs[NL80211_ATTR_PEER_AID])
4265 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4266 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4267 params->ht_capa =
4268 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4269 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4270 params->vht_capa =
4271 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4272
c01fc9ad
SD		 4273 err = nl80211_parse_sta_channel_info(info, params);
4274 if (err)
4275 return err;
4276
ff276691
JB		 4277 return nl80211_parse_sta_wme(info, params);
4278}
4279
5727ef1b
JB		 4280static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4281{
4c476991 4282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4283 struct net_device *dev = info->user_ptr[1];
5727ef1b 4284 struct station_parameters params;
77ee7c89
JB		 4285 u8 *mac_addr;
4286 int err;
5727ef1b
JB		 4287
4288 memset(&params, 0, sizeof(params));
4289
77ee7c89
JB		 4290 if (!rdev->ops->change_station)
4291 return -EOPNOTSUPP;
4292
e4208427
AB		 4293 /*
4294 * AID and listen_interval properties can be set only for unassociated
4295 * station. Include these parameters here and will check them in
4296 * cfg80211_check_station_change().
4297 */
a9bc31e4
AB		 4298 if (info->attrs[NL80211_ATTR_STA_AID])
4299 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4300
4301 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4302 params.listen_interval =
4303 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4304 else
4305 params.listen_interval = -1;
5727ef1b 4306
17b94247
AB		 4307 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4308 u8 tmp;
4309
4310 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4311 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4312 return -EINVAL;
4313
4314 params.support_p2p_ps = tmp;
4315 } else {
4316 params.support_p2p_ps = -1;
4317 }
4318
5727ef1b
JB		 4319 if (!info->attrs[NL80211_ATTR_MAC])
4320 return -EINVAL;
4321
4322 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4323
4324 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4325 params.supported_rates =
4326 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4327 params.supported_rates_len =
4328 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4329 }
4330
9d62a986
JM		 4331 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4332 params.capability =
4333 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4334 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4335 }
4336
4337 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4338 params.ext_capab =
4339 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4340 params.ext_capab_len =
4341 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4342 }
4343
bdd3ae3d 4344 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4345 return -EINVAL;
4346
f8bacc21 4347 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4348 params.plink_action =
f8bacc21
JB		 4349 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4350 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4351 return -EINVAL;
4352 }
2ec600d6 4353
f8bacc21 4354 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4355 params.plink_state =
f8bacc21
JB		 4356 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4357 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4358 return -EINVAL;
4359 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4360 }
9c3990aa 4361
3b1c5a53
MP		 4362 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4363 enum nl80211_mesh_power_mode pm = nla_get_u32(
4364 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4365
4366 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4367 pm > NL80211_MESH_POWER_MAX)
4368 return -EINVAL;
4369
4370 params.local_pm = pm;
4371 }
4372
77ee7c89
JB		 4373 /* Include parameters for TDLS peer (will check later) */
4374 err = nl80211_set_station_tdls(info, &params);
4375 if (err)
4376 return err;
4377
4378 params.vlan = get_vlan(info, rdev);
4379 if (IS_ERR(params.vlan))
4380 return PTR_ERR(params.vlan);
4381
a97f4424
JB		 4382 switch (dev->ieee80211_ptr->iftype) {
4383 case NL80211_IFTYPE_AP:
4384 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4385 case NL80211_IFTYPE_P2P_GO:
074ac8df 4386 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4387 case NL80211_IFTYPE_STATION:
267335d6 4388 case NL80211_IFTYPE_ADHOC:
a97f4424 4389 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4390 break;
4391 default:
77ee7c89
JB		 4392 err = -EOPNOTSUPP;
4393 goto out_put_vlan;
034d655e
JB		 4394 }
4395
77ee7c89 4396 /* driver will call cfg80211_check_station_change() */
e35e4d28 4397 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4398
77ee7c89 4399 out_put_vlan:
5727ef1b
JB		 4400 if (params.vlan)
4401 dev_put(params.vlan);
3b85875a 4402
5727ef1b
JB		 4403 return err;
4404}
4405
4406static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4407{
4c476991 4408 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4409 int err;
4c476991 4410 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4411 struct station_parameters params;
4412 u8 *mac_addr = NULL;
bda95eb1
JB		 4413 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4414 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 4415
4416 memset(&params, 0, sizeof(params));
4417
984c311b
JB		 4418 if (!rdev->ops->add_station)
4419 return -EOPNOTSUPP;
4420
5727ef1b
JB		 4421 if (!info->attrs[NL80211_ATTR_MAC])
4422 return -EINVAL;
4423
5727ef1b
JB		 4424 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4425 return -EINVAL;
4426
4427 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4428 return -EINVAL;
4429
5e4b6f56
JM		 4430 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4431 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4432 return -EINVAL;
4433
5727ef1b
JB		 4434 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4435 params.supported_rates =
4436 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4437 params.supported_rates_len =
4438 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4439 params.listen_interval =
4440 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4441
17b94247
AB		 4442 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4443 u8 tmp;
4444
4445 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4446 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4447 return -EINVAL;
4448
4449 params.support_p2p_ps = tmp;
4450 } else {
4451 /*
4452 * if not specified, assume it's supported for P2P GO interface,
4453 * and is NOT supported for AP interface
4454 */
4455 params.support_p2p_ps =
4456 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
4457 }
4458
3d124ea2 4459 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4460 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4461 else
4462 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4463 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4464 return -EINVAL;
51b50fbe 4465
9d62a986
JM		 4466 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4467 params.capability =
4468 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4469 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4470 }
4471
4472 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4473 params.ext_capab =
4474 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4475 params.ext_capab_len =
4476 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4477 }
4478
36aedc90
JM		 4479 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4480 params.ht_capa =
4481 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4482
f461be3e
MP		 4483 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4484 params.vht_capa =
4485 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4486
60f4a7b1
MK		 4487 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4488 params.opmode_notif_used = true;
4489 params.opmode_notif =
4490 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4491 }
4492
f8bacc21 4493 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4494 params.plink_action =
f8bacc21
JB		 4495 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4496 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4497 return -EINVAL;
4498 }
96b78dff 4499
c01fc9ad
SD		 4500 err = nl80211_parse_sta_channel_info(info, &params);
4501 if (err)
4502 return err;
4503
ff276691
JB		 4504 err = nl80211_parse_sta_wme(info, &params);
4505 if (err)
4506 return err;
bdd90d5e 4507
bdd3ae3d 4508 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4509 return -EINVAL;
4510
496fcc29
JB		 4511 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4512 * as userspace might just pass through the capabilities from the IEs
4513 * directly, rather than enforcing this restriction and returning an
4514 * error in this case.
4515 */
4516 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4517 params.ht_capa = NULL;
4518 params.vht_capa = NULL;
4519 }
4520
77ee7c89
JB		 4521 /* When you run into this, adjust the code below for the new flag */
4522 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4523
bdd90d5e
JB		 4524 switch (dev->ieee80211_ptr->iftype) {
4525 case NL80211_IFTYPE_AP:
4526 case NL80211_IFTYPE_AP_VLAN:
4527 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4528 /* ignore WME attributes if iface/sta is not capable */
4529 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4530 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4531 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4532
bdd90d5e 4533 /* TDLS peers cannot be added */
3d124ea2
JM		 4534 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4535 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4536 return -EINVAL;
bdd90d5e
JB		 4537 /* but don't bother the driver with it */
4538 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4539
d582cffb
JB		 4540 /* allow authenticated/associated only if driver handles it */
4541 if (!(rdev->wiphy.features &
4542 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 4543 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 4544 return -EINVAL;
4545
bda95eb1
JB		 4546 /* Older userspace, or userspace wanting to be compatible with
4547 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
4548 * and assoc flags in the mask, but assumes the station will be
4549 * added as associated anyway since this was the required driver
4550 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
4551 * introduced.
4552 * In order to not bother drivers with this quirk in the API
4553 * set the flags in both the mask and set for new stations in
4554 * this case.
4555 */
4556 if (!(params.sta_flags_mask & auth_assoc)) {
4557 params.sta_flags_mask |= auth_assoc;
4558 params.sta_flags_set |= auth_assoc;
4559 }
4560
bdd90d5e
JB		 4561 /* must be last in here for error handling */
4562 params.vlan = get_vlan(info, rdev);
4563 if (IS_ERR(params.vlan))
4564 return PTR_ERR(params.vlan);
4565 break;
4566 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4567 /* ignore uAPSD data */
4568 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4569
d582cffb
JB		 4570 /* associated is disallowed */
4571 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4572 return -EINVAL;
bdd90d5e 4573 /* TDLS peers cannot be added */
3d124ea2
JM		 4574 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4575 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4576 return -EINVAL;
4577 break;
4578 case NL80211_IFTYPE_STATION:
93d08f0b 4579 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4580 /* ignore uAPSD data */
4581 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4582
77ee7c89
JB		 4583 /* these are disallowed */
4584 if (params.sta_flags_mask &
4585 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4586 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4587 return -EINVAL;
bdd90d5e
JB		 4588 /* Only TDLS peers can be added */
4589 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4590 return -EINVAL;
4591 /* Can only add if TDLS ... */
4592 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4593 return -EOPNOTSUPP;
4594 /* ... with external setup is supported */
4595 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4596 return -EOPNOTSUPP;
77ee7c89
JB		 4597 /*
4598 * Older wpa_supplicant versions always mark the TDLS peer
4599 * as authorized, but it shouldn't yet be.
4600 */
4601 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4602 break;
4603 default:
4604 return -EOPNOTSUPP;
c75786c9
EP		 4605 }
4606
bdd90d5e 4607 /* be aware of params.vlan when changing code here */
5727ef1b 4608
e35e4d28 4609 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4610
5727ef1b
JB		 4611 if (params.vlan)
4612 dev_put(params.vlan);
5727ef1b
JB		 4613 return err;
4614}
4615
4616static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4617{
4c476991
JB		 4618 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4619 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4620 struct station_del_parameters params;
4621
4622 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4623
4624 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4625 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4626
e80cf853 4627 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4628 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4629 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4630 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4631 return -EINVAL;
5727ef1b 4632
4c476991
JB		 4633 if (!rdev->ops->del_station)
4634 return -EOPNOTSUPP;
3b85875a 4635
98856866
JM		 4636 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4637 params.subtype =
4638 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4639 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4640 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4641 return -EINVAL;
4642 } else {
4643 /* Default to Deauthentication frame */
4644 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4645 }
4646
4647 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4648 params.reason_code =
4649 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4650 if (params.reason_code == 0)
4651 return -EINVAL; /* 0 is reserved */
4652 } else {
4653 /* Default to reason code 2 */
4654 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4655 }
4656
89c771e5 4657 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4658}
4659
15e47304 4660static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4661 int flags, struct net_device *dev,
4662 u8 *dst, u8 *next_hop,
4663 struct mpath_info *pinfo)
4664{
4665 void *hdr;
4666 struct nlattr *pinfoattr;
4667
1ef4c850 4668 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4669 if (!hdr)
4670 return -1;
4671
9360ffd1
DM		 4672 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4673 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4674 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4675 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4676 goto nla_put_failure;
f5ea9120 4677
2ec600d6
LCC		 4678 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4679 if (!pinfoattr)
4680 goto nla_put_failure;
9360ffd1
DM		 4681 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4682 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4683 pinfo->frame_qlen))
4684 goto nla_put_failure;
4685 if (((pinfo->filled & MPATH_INFO_SN) &&
4686 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4687 ((pinfo->filled & MPATH_INFO_METRIC) &&
4688 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4689 pinfo->metric)) ||
4690 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4691 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4692 pinfo->exptime)) ||
4693 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4694 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4695 pinfo->flags)) ||
4696 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4697 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4698 pinfo->discovery_timeout)) ||
4699 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4700 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4701 pinfo->discovery_retries)))
4702 goto nla_put_failure;
2ec600d6
LCC		 4703
4704 nla_nest_end(msg, pinfoattr);
4705
053c095a
JB		 4706 genlmsg_end(msg, hdr);
4707 return 0;
2ec600d6
LCC		 4708
4709 nla_put_failure:
bc3ed28c
TG		 4710 genlmsg_cancel(msg, hdr);
4711 return -EMSGSIZE;
2ec600d6
LCC		 4712}
4713
4714static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4715 struct netlink_callback *cb)
2ec600d6 4716{
2ec600d6 4717 struct mpath_info pinfo;
1b8ec87a 4718 struct cfg80211_registered_device *rdev;
97990a06 4719 struct wireless_dev *wdev;
2ec600d6
LCC		 4720 u8 dst[ETH_ALEN];
4721 u8 next_hop[ETH_ALEN];
97990a06 4722 int path_idx = cb->args[2];
2ec600d6 4723 int err;
2ec600d6 4724
1b8ec87a 4725 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4726 if (err)
4727 return err;
bba95fef 4728
1b8ec87a 4729 if (!rdev->ops->dump_mpath) {
eec60b03 4730 err = -EOPNOTSUPP;
bba95fef
JB		 4731 goto out_err;
4732 }
4733
97990a06 4734 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4735 err = -EOPNOTSUPP;
0448b5fc 4736 goto out_err;
eec60b03
JM		 4737 }
4738
bba95fef 4739 while (1) {
1b8ec87a 4740 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4741 next_hop, &pinfo);
bba95fef 4742 if (err == -ENOENT)
2ec600d6 4743 break;
bba95fef 4744 if (err)
3b85875a 4745 goto out_err;
2ec600d6 4746
15e47304 4747 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4748 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4749 wdev->netdev, dst, next_hop,
bba95fef
JB		 4750 &pinfo) < 0)
4751 goto out;
2ec600d6 4752
bba95fef 4753 path_idx++;
2ec600d6 4754 }
2ec600d6 4755
2ec600d6 4756
bba95fef 4757 out:
97990a06 4758 cb->args[2] = path_idx;
bba95fef 4759 err = skb->len;
bba95fef 4760 out_err:
1b8ec87a 4761 nl80211_finish_wdev_dump(rdev);
bba95fef 4762 return err;
2ec600d6
LCC		 4763}
4764
4765static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4766{
4c476991 4767 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4768 int err;
4c476991 4769 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4770 struct mpath_info pinfo;
4771 struct sk_buff *msg;
4772 u8 *dst = NULL;
4773 u8 next_hop[ETH_ALEN];
4774
4775 memset(&pinfo, 0, sizeof(pinfo));
4776
4777 if (!info->attrs[NL80211_ATTR_MAC])
4778 return -EINVAL;
4779
4780 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4781
4c476991
JB		 4782 if (!rdev->ops->get_mpath)
4783 return -EOPNOTSUPP;
2ec600d6 4784
4c476991
JB		 4785 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4786 return -EOPNOTSUPP;
eec60b03 4787
e35e4d28 4788 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4789 if (err)
4c476991 4790 return err;
2ec600d6 4791
fd2120ca 4792 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4793 if (!msg)
4c476991 4794 return -ENOMEM;
2ec600d6 4795
15e47304 4796 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4797 dev, dst, next_hop, &pinfo) < 0) {
4798 nlmsg_free(msg);
4799 return -ENOBUFS;
4800 }
3b85875a 4801
4c476991 4802 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4803}
4804
4805static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4806{
4c476991
JB		 4807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4808 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4809 u8 *dst = NULL;
4810 u8 *next_hop = NULL;
4811
4812 if (!info->attrs[NL80211_ATTR_MAC])
4813 return -EINVAL;
4814
4815 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4816 return -EINVAL;
4817
4818 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4819 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4820
4c476991
JB		 4821 if (!rdev->ops->change_mpath)
4822 return -EOPNOTSUPP;
35a8efe1 4823
4c476991
JB		 4824 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4825 return -EOPNOTSUPP;
2ec600d6 4826
e35e4d28 4827 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4828}
4c476991 4829
2ec600d6
LCC		 4830static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4831{
4c476991
JB		 4832 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4833 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4834 u8 *dst = NULL;
4835 u8 *next_hop = NULL;
4836
4837 if (!info->attrs[NL80211_ATTR_MAC])
4838 return -EINVAL;
4839
4840 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4841 return -EINVAL;
4842
4843 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4844 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4845
4c476991
JB		 4846 if (!rdev->ops->add_mpath)
4847 return -EOPNOTSUPP;
35a8efe1 4848
4c476991
JB		 4849 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4850 return -EOPNOTSUPP;
2ec600d6 4851
e35e4d28 4852 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4853}
4854
4855static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4856{
4c476991
JB		 4857 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4858 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4859 u8 *dst = NULL;
4860
4861 if (info->attrs[NL80211_ATTR_MAC])
4862 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4863
4c476991
JB		 4864 if (!rdev->ops->del_mpath)
4865 return -EOPNOTSUPP;
3b85875a 4866
e35e4d28 4867 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4868}
4869
66be7d2b
HR		 4870static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4871{
4872 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4873 int err;
4874 struct net_device *dev = info->user_ptr[1];
4875 struct mpath_info pinfo;
4876 struct sk_buff *msg;
4877 u8 *dst = NULL;
4878 u8 mpp[ETH_ALEN];
4879
4880 memset(&pinfo, 0, sizeof(pinfo));
4881
4882 if (!info->attrs[NL80211_ATTR_MAC])
4883 return -EINVAL;
4884
4885 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4886
4887 if (!rdev->ops->get_mpp)
4888 return -EOPNOTSUPP;
4889
4890 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4891 return -EOPNOTSUPP;
4892
4893 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4894 if (err)
4895 return err;
4896
4897 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4898 if (!msg)
4899 return -ENOMEM;
4900
4901 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4902 dev, dst, mpp, &pinfo) < 0) {
4903 nlmsg_free(msg);
4904 return -ENOBUFS;
4905 }
4906
4907 return genlmsg_reply(msg, info);
4908}
4909
4910static int nl80211_dump_mpp(struct sk_buff *skb,
4911 struct netlink_callback *cb)
4912{
4913 struct mpath_info pinfo;
4914 struct cfg80211_registered_device *rdev;
4915 struct wireless_dev *wdev;
4916 u8 dst[ETH_ALEN];
4917 u8 mpp[ETH_ALEN];
4918 int path_idx = cb->args[2];
4919 int err;
4920
4921 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4922 if (err)
4923 return err;
4924
4925 if (!rdev->ops->dump_mpp) {
4926 err = -EOPNOTSUPP;
4927 goto out_err;
4928 }
4929
4930 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4931 err = -EOPNOTSUPP;
4932 goto out_err;
4933 }
4934
4935 while (1) {
4936 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4937 mpp, &pinfo);
4938 if (err == -ENOENT)
4939 break;
4940 if (err)
4941 goto out_err;
4942
4943 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4944 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4945 wdev->netdev, dst, mpp,
4946 &pinfo) < 0)
4947 goto out;
4948
4949 path_idx++;
4950 }
4951
4952 out:
4953 cb->args[2] = path_idx;
4954 err = skb->len;
4955 out_err:
4956 nl80211_finish_wdev_dump(rdev);
4957 return err;
4958}
4959
9f1ba906
JM		 4960static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4961{
4c476991
JB		 4962 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4963 struct net_device *dev = info->user_ptr[1];
c56589ed 4964 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4965 struct bss_parameters params;
c56589ed 4966 int err;
9f1ba906
JM		 4967
4968 memset(&params, 0, sizeof(params));
4969 /* default to not changing parameters */
4970 params.use_cts_prot = -1;
4971 params.use_short_preamble = -1;
4972 params.use_short_slot_time = -1;
fd8aaaf3 4973 params.ap_isolate = -1;
50b12f59 4974 params.ht_opmode = -1;
53cabad7
JB		 4975 params.p2p_ctwindow = -1;
4976 params.p2p_opp_ps = -1;
9f1ba906
JM		 4977
4978 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4979 params.use_cts_prot =
4980 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4981 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4982 params.use_short_preamble =
4983 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4984 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4985 params.use_short_slot_time =
4986 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4987 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4988 params.basic_rates =
4989 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4990 params.basic_rates_len =
4991 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4992 }
fd8aaaf3
FF		 4993 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4994 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4995 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4996 params.ht_opmode =
4997 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4998
53cabad7
JB		 4999 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5000 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5001 return -EINVAL;
5002 params.p2p_ctwindow =
5003 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5004 if (params.p2p_ctwindow < 0)
5005 return -EINVAL;
5006 if (params.p2p_ctwindow != 0 &&
5007 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5008 return -EINVAL;
5009 }
5010
5011 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5012 u8 tmp;
5013
5014 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5015 return -EINVAL;
5016 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5017 if (tmp > 1)
5018 return -EINVAL;
5019 params.p2p_opp_ps = tmp;
5020 if (params.p2p_opp_ps &&
5021 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5022 return -EINVAL;
5023 }
5024
4c476991
JB		 5025 if (!rdev->ops->change_bss)
5026 return -EOPNOTSUPP;
9f1ba906 5027
074ac8df 5028 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5029 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5030 return -EOPNOTSUPP;
3b85875a 5031
c56589ed
SW		 5032 wdev_lock(wdev);
5033 err = rdev_change_bss(rdev, dev, &params);
5034 wdev_unlock(wdev);
5035
5036 return err;
9f1ba906
JM		 5037}
5038
b2e1b302
LR		 5039static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5040{
b2e1b302 5041 char *data = NULL;
05050753 5042 bool is_indoor;
57b5ce07 5043 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5044 u32 owner_nlportid;
5045
b2e1b302 5046
80778f18
LR		 5047 /*
5048 * You should only get this when cfg80211 hasn't yet initialized
5049 * completely when built-in to the kernel right between the time
5050 * window between nl80211_init() and regulatory_init(), if that is
5051 * even possible.
5052 */
458f4f9e 5053 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5054 return -EINPROGRESS;
80778f18 5055
57b5ce07
LR		 5056 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5057 user_reg_hint_type =
5058 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5059 else
5060 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5061
5062 switch (user_reg_hint_type) {
5063 case NL80211_USER_REG_HINT_USER:
5064 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5065 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5066 return -EINVAL;
5067
5068 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5069 return regulatory_hint_user(data, user_reg_hint_type);
5070 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5071 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5072 owner_nlportid = info->snd_portid;
5073 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5074 } else {
5075 owner_nlportid = 0;
5076 is_indoor = true;
5077 }
5078
5079 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5080 default:
5081 return -EINVAL;
5082 }
b2e1b302
LR		 5083}
5084
24bdd9f4 5085static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5086 struct genl_info *info)
93da9cc1 5087{
4c476991 5088 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5089 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5090 struct wireless_dev *wdev = dev->ieee80211_ptr;
5091 struct mesh_config cur_params;
5092 int err = 0;
93da9cc1 5093 void *hdr;
5094 struct nlattr *pinfoattr;
5095 struct sk_buff *msg;
5096
29cbe68c
JB		 5097 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5098 return -EOPNOTSUPP;
5099
24bdd9f4 5100 if (!rdev->ops->get_mesh_config)
4c476991 5101 return -EOPNOTSUPP;
f3f92586 5102
29cbe68c
JB		 5103 wdev_lock(wdev);
5104 /* If not connected, get default parameters */
5105 if (!wdev->mesh_id_len)
5106 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5107 else
e35e4d28 5108 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5109 wdev_unlock(wdev);
5110
93da9cc1 5111 if (err)
4c476991 5112 return err;
93da9cc1 5113
5114 /* Draw up a netlink message to send back */
fd2120ca 5115 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5116 if (!msg)
5117 return -ENOMEM;
15e47304 5118 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5119 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5120 if (!hdr)
efe1cf0c 5121 goto out;
24bdd9f4 5122 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5123 if (!pinfoattr)
5124 goto nla_put_failure;
9360ffd1
DM		 5125 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5126 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5127 cur_params.dot11MeshRetryTimeout) ||
5128 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5129 cur_params.dot11MeshConfirmTimeout) ||
5130 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5131 cur_params.dot11MeshHoldingTimeout) ||
5132 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5133 cur_params.dot11MeshMaxPeerLinks) ||
5134 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5135 cur_params.dot11MeshMaxRetries) ||
5136 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5137 cur_params.dot11MeshTTL) ||
5138 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5139 cur_params.element_ttl) ||
5140 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5141 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5142 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5143 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5144 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5145 cur_params.dot11MeshHWMPmaxPREQretries) ||
5146 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5147 cur_params.path_refresh_time) ||
5148 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5149 cur_params.min_discovery_timeout) ||
5150 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5151 cur_params.dot11MeshHWMPactivePathTimeout) ||
5152 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5153 cur_params.dot11MeshHWMPpreqMinInterval) ||
5154 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5155 cur_params.dot11MeshHWMPperrMinInterval) ||
5156 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5157 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5158 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5159 cur_params.dot11MeshHWMPRootMode) ||
5160 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5161 cur_params.dot11MeshHWMPRannInterval) ||
5162 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5163 cur_params.dot11MeshGateAnnouncementProtocol) ||
5164 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5165 cur_params.dot11MeshForwarding) ||
5166 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5167 cur_params.rssi_threshold) ||
5168 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5169 cur_params.ht_opmode) ||
5170 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5171 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5172 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5173 cur_params.dot11MeshHWMProotInterval) ||
5174 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5175 cur_params.dot11MeshHWMPconfirmationInterval) ||
5176 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5177 cur_params.power_mode) ||
5178 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5179 cur_params.dot11MeshAwakeWindowDuration) ||
5180 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5181 cur_params.plink_timeout))
9360ffd1 5182 goto nla_put_failure;
93da9cc1 5183 nla_nest_end(msg, pinfoattr);
5184 genlmsg_end(msg, hdr);
4c476991 5185 return genlmsg_reply(msg, info);
93da9cc1 5186
3b85875a 5187 nla_put_failure:
93da9cc1 5188 genlmsg_cancel(msg, hdr);
efe1cf0c 5189 out:
d080e275 5190 nlmsg_free(msg);
4c476991 5191 return -ENOBUFS;
93da9cc1 5192}
5193
b54452b0 5194static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5195 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5196 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5197 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5198 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5199 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5200 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5201 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5202 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5203 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5204 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5205 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5206 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5207 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5208 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5209 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5210 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5211 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5212 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5213 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5214 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5215 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5216 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5217 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5218 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5219 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5220 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5221 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5222 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5223};
5224
c80d545d
JC		 5225static const struct nla_policy
5226 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5227 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5228 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5229 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5230 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5231 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5232 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5233 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5234 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5235 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5236};
5237
24bdd9f4 5238static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5239 struct mesh_config *cfg,
5240 u32 *mask_out)
93da9cc1 5241{
93da9cc1 5242 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5243 u32 mask = 0;
93da9cc1 5244
ea54fba2
MP		 5245#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5246do { \
5247 if (tb[attr]) { \
5248 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5249 return -EINVAL; \
5250 cfg->param = fn(tb[attr]); \
5251 mask |= (1 << (attr - 1)); \
5252 } \
5253} while (0)
bd90fdcc
JB		 5254
5255
24bdd9f4 5256 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5257 return -EINVAL;
5258 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5259 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5260 nl80211_meshconf_params_policy))
93da9cc1 5261 return -EINVAL;
5262
93da9cc1 5263 /* This makes sure that there aren't more than 32 mesh config
5264 * parameters (otherwise our bitfield scheme would not work.) */
5265 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5266
5267 /* Fill in the params struct */
ea54fba2 5268 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5269 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5270 nla_get_u16);
ea54fba2 5271 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5272 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5273 nla_get_u16);
ea54fba2 5274 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5275 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5276 nla_get_u16);
ea54fba2 5277 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5278 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5279 nla_get_u16);
ea54fba2 5280 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5281 mask, NL80211_MESHCONF_MAX_RETRIES,
5282 nla_get_u8);
ea54fba2 5283 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5284 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5285 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5286 mask, NL80211_MESHCONF_ELEMENT_TTL,
5287 nla_get_u8);
ea54fba2 5288 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5289 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5290 nla_get_u8);
ea54fba2
MP		 5291 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5292 1, 255, mask,
a4f606ea
CYY		 5293 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5294 nla_get_u32);
ea54fba2 5295 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5296 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5297 nla_get_u8);
ea54fba2 5298 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5299 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5300 nla_get_u32);
ea54fba2 5301 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5302 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5303 nla_get_u16);
ea54fba2
MP		 5304 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5305 1, 65535, mask,
a4f606ea
CYY		 5306 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5307 nla_get_u32);
93da9cc1 5308 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5309 1, 65535, mask,
5310 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5311 nla_get_u16);
dca7e943 5312 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5313 1, 65535, mask,
5314 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5315 nla_get_u16);
93da9cc1 5316 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5317 dot11MeshHWMPnetDiameterTraversalTime,
5318 1, 65535, mask,
a4f606ea
CYY		 5319 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5320 nla_get_u16);
ea54fba2
MP		 5321 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5322 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5323 nla_get_u8);
5324 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5325 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5326 nla_get_u16);
63c5723b 5327 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5328 dot11MeshGateAnnouncementProtocol, 0, 1,
5329 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5330 nla_get_u8);
ea54fba2 5331 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5332 mask, NL80211_MESHCONF_FORWARDING,
5333 nla_get_u8);
83374fe9 5334 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5335 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5336 nla_get_s32);
ea54fba2 5337 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5338 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5339 nla_get_u16);
5340 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5341 1, 65535, mask,
ac1073a6
CYY		 5342 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5343 nla_get_u32);
ea54fba2 5344 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5345 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5346 nla_get_u16);
5347 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5348 dot11MeshHWMPconfirmationInterval,
5349 1, 65535, mask,
728b19e5 5350 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5351 nla_get_u16);
3b1c5a53
MP		 5352 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5353 NL80211_MESH_POWER_ACTIVE,
5354 NL80211_MESH_POWER_MAX,
5355 mask, NL80211_MESHCONF_POWER_MODE,
5356 nla_get_u32);
5357 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5358 0, 65535, mask,
5359 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
31f909a2 5360 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538
CT		 5361 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5362 nla_get_u32);
bd90fdcc
JB		 5363 if (mask_out)
5364 *mask_out = mask;
c80d545d 5365
bd90fdcc
JB		 5366 return 0;
5367
5368#undef FILL_IN_MESH_PARAM_IF_SET
5369}
5370
c80d545d
JC		 5371static int nl80211_parse_mesh_setup(struct genl_info *info,
5372 struct mesh_setup *setup)
5373{
bb2798d4 5374 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5375 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5376
5377 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5378 return -EINVAL;
5379 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5380 info->attrs[NL80211_ATTR_MESH_SETUP],
5381 nl80211_mesh_setup_params_policy))
5382 return -EINVAL;
5383
d299a1f2
JC		 5384 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5385 setup->sync_method =
5386 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5387 IEEE80211_SYNC_METHOD_VENDOR :
5388 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5389
c80d545d
JC		 5390 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5391 setup->path_sel_proto =
5392 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5393 IEEE80211_PATH_PROTOCOL_VENDOR :
5394 IEEE80211_PATH_PROTOCOL_HWMP;
5395
5396 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5397 setup->path_metric =
5398 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5399 IEEE80211_PATH_METRIC_VENDOR :
5400 IEEE80211_PATH_METRIC_AIRTIME;
5401
581a8b0f
JC		 5402
5403 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5404 struct nlattr *ieattr =
581a8b0f 5405 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5406 if (!is_valid_ie_attr(ieattr))
5407 return -EINVAL;
581a8b0f
JC		 5408 setup->ie = nla_data(ieattr);
5409 setup->ie_len = nla_len(ieattr);
c80d545d 5410 }
bb2798d4
TP		 5411 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5412 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5413 return -EINVAL;
5414 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5415 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5416 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5417 if (setup->is_secure)
5418 setup->user_mpm = true;
c80d545d 5419
6e16d90b
CT		 5420 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5421 if (!setup->user_mpm)
5422 return -EINVAL;
5423 setup->auth_id =
5424 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5425 }
5426
c80d545d
JC		 5427 return 0;
5428}
5429
24bdd9f4 5430static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5431 struct genl_info *info)
bd90fdcc
JB		 5432{
5433 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5434 struct net_device *dev = info->user_ptr[1];
29cbe68c 5435 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5436 struct mesh_config cfg;
5437 u32 mask;
5438 int err;
5439
29cbe68c
JB		 5440 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5441 return -EOPNOTSUPP;
5442
24bdd9f4 5443 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5444 return -EOPNOTSUPP;
5445
24bdd9f4 5446 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5447 if (err)
5448 return err;
5449
29cbe68c
JB		 5450 wdev_lock(wdev);
5451 if (!wdev->mesh_id_len)
5452 err = -ENOLINK;
5453
5454 if (!err)
e35e4d28 5455 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5456
5457 wdev_unlock(wdev);
5458
5459 return err;
93da9cc1 5460}
5461
ad30ca2c
AN		 5462static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5463 struct sk_buff *msg)
f130347c 5464{
f130347c
LR		 5465 struct nlattr *nl_reg_rules;
5466 unsigned int i;
f130347c 5467
458f4f9e
JB		 5468 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5469 (regdom->dfs_region &&
5470 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5471 goto nla_put_failure;
458f4f9e 5472
f130347c
LR		 5473 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5474 if (!nl_reg_rules)
ad30ca2c 5475 goto nla_put_failure;
f130347c 5476
458f4f9e 5477 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5478 struct nlattr *nl_reg_rule;
5479 const struct ieee80211_reg_rule *reg_rule;
5480 const struct ieee80211_freq_range *freq_range;
5481 const struct ieee80211_power_rule *power_rule;
97524820 5482 unsigned int max_bandwidth_khz;
f130347c 5483
458f4f9e 5484 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5485 freq_range = &reg_rule->freq_range;
5486 power_rule = &reg_rule->power_rule;
5487
5488 nl_reg_rule = nla_nest_start(msg, i);
5489 if (!nl_reg_rule)
ad30ca2c 5490 goto nla_put_failure;
f130347c 5491
97524820
JD		 5492 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5493 if (!max_bandwidth_khz)
5494 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5495 reg_rule);
5496
9360ffd1
DM		 5497 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5498 reg_rule->flags) ||
5499 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5500 freq_range->start_freq_khz) ||
5501 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5502 freq_range->end_freq_khz) ||
5503 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5504 max_bandwidth_khz) ||
9360ffd1
DM		 5505 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5506 power_rule->max_antenna_gain) ||
5507 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5508 power_rule->max_eirp) ||
5509 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5510 reg_rule->dfs_cac_ms))
ad30ca2c 5511 goto nla_put_failure;
f130347c
LR		 5512
5513 nla_nest_end(msg, nl_reg_rule);
5514 }
5515
5516 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5517 return 0;
5518
5519nla_put_failure:
5520 return -EMSGSIZE;
5521}
5522
5523static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5524{
5525 const struct ieee80211_regdomain *regdom = NULL;
5526 struct cfg80211_registered_device *rdev;
5527 struct wiphy *wiphy = NULL;
5528 struct sk_buff *msg;
5529 void *hdr;
5530
5531 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5532 if (!msg)
5533 return -ENOBUFS;
5534
5535 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5536 NL80211_CMD_GET_REG);
5537 if (!hdr)
5538 goto put_failure;
5539
5540 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5541 bool self_managed;
5542
ad30ca2c
AN		 5543 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5544 if (IS_ERR(rdev)) {
5545 nlmsg_free(msg);
5546 return PTR_ERR(rdev);
5547 }
5548
5549 wiphy = &rdev->wiphy;
1bdd716c
AN		 5550 self_managed = wiphy->regulatory_flags &
5551 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5552 regdom = get_wiphy_regdom(wiphy);
5553
1bdd716c
AN		 5554 /* a self-managed-reg device must have a private regdom */
5555 if (WARN_ON(!regdom && self_managed)) {
5556 nlmsg_free(msg);
5557 return -EINVAL;
5558 }
5559
ad30ca2c
AN		 5560 if (regdom &&
5561 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5562 goto nla_put_failure;
5563 }
5564
5565 if (!wiphy && reg_last_request_cell_base() &&
5566 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5567 NL80211_USER_REG_HINT_CELL_BASE))
5568 goto nla_put_failure;
5569
5570 rcu_read_lock();
5571
5572 if (!regdom)
5573 regdom = rcu_dereference(cfg80211_regdomain);
5574
5575 if (nl80211_put_regdom(regdom, msg))
5576 goto nla_put_failure_rcu;
5577
5578 rcu_read_unlock();
f130347c
LR		 5579
5580 genlmsg_end(msg, hdr);
5fe231e8 5581 return genlmsg_reply(msg, info);
f130347c 5582
458f4f9e
JB		 5583nla_put_failure_rcu:
5584 rcu_read_unlock();
f130347c
LR		 5585nla_put_failure:
5586 genlmsg_cancel(msg, hdr);
efe1cf0c 5587put_failure:
d080e275 5588 nlmsg_free(msg);
5fe231e8 5589 return -EMSGSIZE;
f130347c
LR		 5590}
5591
ad30ca2c
AN		 5592static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5593 u32 seq, int flags, struct wiphy *wiphy,
5594 const struct ieee80211_regdomain *regdom)
5595{
5596 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5597 NL80211_CMD_GET_REG);
5598
5599 if (!hdr)
5600 return -1;
5601
5602 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5603
5604 if (nl80211_put_regdom(regdom, msg))
5605 goto nla_put_failure;
5606
5607 if (!wiphy && reg_last_request_cell_base() &&
5608 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5609 NL80211_USER_REG_HINT_CELL_BASE))
5610 goto nla_put_failure;
5611
5612 if (wiphy &&
5613 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5614 goto nla_put_failure;
5615
1bdd716c
AN		 5616 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5617 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5618 goto nla_put_failure;
5619
053c095a
JB		 5620 genlmsg_end(msg, hdr);
5621 return 0;
ad30ca2c
AN		 5622
5623nla_put_failure:
5624 genlmsg_cancel(msg, hdr);
5625 return -EMSGSIZE;
5626}
5627
5628static int nl80211_get_reg_dump(struct sk_buff *skb,
5629 struct netlink_callback *cb)
5630{
5631 const struct ieee80211_regdomain *regdom = NULL;
5632 struct cfg80211_registered_device *rdev;
5633 int err, reg_idx, start = cb->args[2];
5634
5635 rtnl_lock();
5636
5637 if (cfg80211_regdomain && start == 0) {
5638 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5639 NLM_F_MULTI, NULL,
5640 rtnl_dereference(cfg80211_regdomain));
5641 if (err < 0)
5642 goto out_err;
5643 }
5644
5645 /* the global regdom is idx 0 */
5646 reg_idx = 1;
5647 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5648 regdom = get_wiphy_regdom(&rdev->wiphy);
5649 if (!regdom)
5650 continue;
5651
5652 if (++reg_idx <= start)
5653 continue;
5654
5655 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5656 NLM_F_MULTI, &rdev->wiphy, regdom);
5657 if (err < 0) {
5658 reg_idx--;
5659 break;
5660 }
5661 }
5662
5663 cb->args[2] = reg_idx;
5664 err = skb->len;
5665out_err:
5666 rtnl_unlock();
5667 return err;
5668}
5669
b6863036
JB		 5670#ifdef CONFIG_CFG80211_CRDA_SUPPORT
5671static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
5672 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5673 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5674 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5675 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5676 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5677 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5678 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
5679};
5680
5681static int parse_reg_rule(struct nlattr *tb[],
5682 struct ieee80211_reg_rule *reg_rule)
5683{
5684 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
5685 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
5686
5687 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
5688 return -EINVAL;
5689 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
5690 return -EINVAL;
5691 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
5692 return -EINVAL;
5693 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
5694 return -EINVAL;
5695 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
5696 return -EINVAL;
5697
5698 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
5699
5700 freq_range->start_freq_khz =
5701 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
5702 freq_range->end_freq_khz =
5703 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
5704 freq_range->max_bandwidth_khz =
5705 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
5706
5707 power_rule->max_eirp =
5708 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
5709
5710 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
5711 power_rule->max_antenna_gain =
5712 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
5713
5714 if (tb[NL80211_ATTR_DFS_CAC_TIME])
5715 reg_rule->dfs_cac_ms =
5716 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
5717
5718 return 0;
5719}
5720
b2e1b302
LR		 5721static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5722{
5723 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5724 struct nlattr *nl_reg_rule;
ea372c54
JB		 5725 char *alpha2;
5726 int rem_reg_rules, r;
b2e1b302 5727 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5728 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5729 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5730
5731 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5732 return -EINVAL;
5733
5734 if (!info->attrs[NL80211_ATTR_REG_RULES])
5735 return -EINVAL;
5736
5737 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5738
8b60b078
LR		 5739 if (info->attrs[NL80211_ATTR_DFS_REGION])
5740 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5741
b2e1b302 5742 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5743 rem_reg_rules) {
b2e1b302
LR		 5744 num_rules++;
5745 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5746 return -EINVAL;
b2e1b302
LR		 5747 }
5748
e438768f
LR		 5749 if (!reg_is_valid_request(alpha2))
5750 return -EINVAL;
5751
b2e1b302 5752 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5753 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5754
5755 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5756 if (!rd)
5757 return -ENOMEM;
b2e1b302
LR		 5758
5759 rd->n_reg_rules = num_rules;
5760 rd->alpha2[0] = alpha2[0];
5761 rd->alpha2[1] = alpha2[1];
5762
8b60b078
LR		 5763 /*
5764 * Disable DFS master mode if the DFS region was
5765 * not supported or known on this kernel.
5766 */
5767 if (reg_supported_dfs_region(dfs_region))
5768 rd->dfs_region = dfs_region;
5769
b2e1b302 5770 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5771 rem_reg_rules) {
ae811e21
JB		 5772 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5773 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5774 reg_rule_policy);
5775 if (r)
5776 goto bad_reg;
b2e1b302
LR		 5777 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5778 if (r)
5779 goto bad_reg;
5780
5781 rule_idx++;
5782
d0e18f83
LR		 5783 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5784 r = -EINVAL;
b2e1b302 5785 goto bad_reg;
d0e18f83 5786 }
b2e1b302
LR		 5787 }
5788
c37722bd 5789 r = set_regdom(rd, REGD_SOURCE_CRDA);
6913b49a 5790 /* set_regdom took ownership */
1a919318 5791 rd = NULL;
b2e1b302 5792
d2372b31 5793 bad_reg:
b2e1b302 5794 kfree(rd);
d0e18f83 5795 return r;
b2e1b302 5796}
b6863036 5797#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 5798
83f5e2cf
JB		 5799static int validate_scan_freqs(struct nlattr *freqs)
5800{
5801 struct nlattr *attr1, *attr2;
5802 int n_channels = 0, tmp1, tmp2;
5803
5804 nla_for_each_nested(attr1, freqs, tmp1) {
5805 n_channels++;
5806 /*
5807 * Some hardware has a limited channel list for
5808 * scanning, and it is pretty much nonsensical
5809 * to scan for a channel twice, so disallow that
5810 * and don't require drivers to check that the
5811 * channel list they get isn't longer than what
5812 * they can scan, as long as they can scan all
5813 * the channels they registered at once.
5814 */
5815 nla_for_each_nested(attr2, freqs, tmp2)
5816 if (attr1 != attr2 &&
5817 nla_get_u32(attr1) == nla_get_u32(attr2))
5818 return 0;
5819 }
5820
5821 return n_channels;
5822}
5823
38de03d2
AS		 5824static bool is_band_valid(struct wiphy *wiphy, enum ieee80211_band b)
5825{
5826 return b < IEEE80211_NUM_BANDS && wiphy->bands[b];
5827}
5828
5829static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
5830 struct cfg80211_bss_selection *bss_select)
5831{
5832 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
5833 struct nlattr *nest;
5834 int err;
5835 bool found = false;
5836 int i;
5837
5838 /* only process one nested attribute */
5839 nest = nla_data(nla);
5840 if (!nla_ok(nest, nla_len(nest)))
5841 return -EINVAL;
5842
5843 err = nla_parse(attr, NL80211_BSS_SELECT_ATTR_MAX, nla_data(nest),
5844 nla_len(nest), nl80211_bss_select_policy);
5845 if (err)
5846 return err;
5847
5848 /* only one attribute may be given */
5849 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
5850 if (attr[i]) {
5851 if (found)
5852 return -EINVAL;
5853 found = true;
5854 }
5855 }
5856
5857 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
5858
5859 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
5860 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
5861
5862 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
5863 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
5864 bss_select->param.band_pref =
5865 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
5866 if (!is_band_valid(wiphy, bss_select->param.band_pref))
5867 return -EINVAL;
5868 }
5869
5870 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
5871 struct nl80211_bss_select_rssi_adjust *adj_param;
5872
5873 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
5874 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
5875 bss_select->param.adjust.band = adj_param->band;
5876 bss_select->param.adjust.delta = adj_param->delta;
5877 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
5878 return -EINVAL;
5879 }
5880
5881 /* user-space did not provide behaviour attribute */
5882 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
5883 return -EINVAL;
5884
5885 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
5886 return -EINVAL;
5887
5888 return 0;
5889}
5890
ad2b26ab
JB		 5891static int nl80211_parse_random_mac(struct nlattr **attrs,
5892 u8 *mac_addr, u8 *mac_addr_mask)
5893{
5894 int i;
5895
5896 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 5897 eth_zero_addr(mac_addr);
5898 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 5899 mac_addr[0] = 0x2;
5900 mac_addr_mask[0] = 0x3;
5901
5902 return 0;
5903 }
5904
5905 /* need both or none */
5906 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5907 return -EINVAL;
5908
5909 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5910 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5911
5912 /* don't allow or configure an mcast address */
5913 if (!is_multicast_ether_addr(mac_addr_mask) ||
5914 is_multicast_ether_addr(mac_addr))
5915 return -EINVAL;
5916
5917 /*
5918 * allow users to pass a MAC address that has bits set outside
5919 * of the mask, but don't bother drivers with having to deal
5920 * with such bits
5921 */
5922 for (i = 0; i < ETH_ALEN; i++)
5923 mac_addr[i] &= mac_addr_mask[i];
5924
5925 return 0;
5926}
5927
2a519311
JB		 5928static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5929{
4c476991 5930 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5931 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5932 struct cfg80211_scan_request *request;
2a519311
JB		 5933 struct nlattr *attr;
5934 struct wiphy *wiphy;
83f5e2cf 5935 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5936 size_t ie_len;
2a519311 5937
f4a11bb0
JB		 5938 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5939 return -EINVAL;
5940
79c97e97 5941 wiphy = &rdev->wiphy;
2a519311 5942
4c476991
JB		 5943 if (!rdev->ops->scan)
5944 return -EOPNOTSUPP;
2a519311 5945
f9d15d16 5946 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5947 err = -EBUSY;
5948 goto unlock;
5949 }
2a519311
JB		 5950
5951 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5952 n_channels = validate_scan_freqs(
5953 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5954 if (!n_channels) {
5955 err = -EINVAL;
5956 goto unlock;
5957 }
2a519311 5958 } else {
bdfbec2d 5959 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5960 }
5961
5962 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5963 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5964 n_ssids++;
5965
f9f47529
JB		 5966 if (n_ssids > wiphy->max_scan_ssids) {
5967 err = -EINVAL;
5968 goto unlock;
5969 }
2a519311 5970
70692ad2
JM		 5971 if (info->attrs[NL80211_ATTR_IE])
5972 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5973 else
5974 ie_len = 0;
5975
f9f47529
JB		 5976 if (ie_len > wiphy->max_scan_ie_len) {
5977 err = -EINVAL;
5978 goto unlock;
5979 }
18a83659 5980
2a519311 5981 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5982 + sizeof(*request->ssids) * n_ssids
5983 + sizeof(*request->channels) * n_channels
70692ad2 5984 + ie_len, GFP_KERNEL);
f9f47529
JB		 5985 if (!request) {
5986 err = -ENOMEM;
5987 goto unlock;
5988 }
2a519311 5989
2a519311 5990 if (n_ssids)
5ba63533 5991 request->ssids = (void *)&request->channels[n_channels];
2a519311 5992 request->n_ssids = n_ssids;
70692ad2 5993 if (ie_len) {
13874e4b 5994 if (n_ssids)
70692ad2
JM		 5995 request->ie = (void *)(request->ssids + n_ssids);
5996 else
5997 request->ie = (void *)(request->channels + n_channels);
5998 }
2a519311 5999
584991dc 6000 i = 0;
2a519311
JB		 6001 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6002 /* user specified, bail out if channel not found */
2a519311 6003 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6004 struct ieee80211_channel *chan;
6005
6006 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6007
6008 if (!chan) {
2a519311
JB		 6009 err = -EINVAL;
6010 goto out_free;
6011 }
584991dc
JB		 6012
6013 /* ignore disabled channels */
6014 if (chan->flags & IEEE80211_CHAN_DISABLED)
6015 continue;
6016
6017 request->channels[i] = chan;
2a519311
JB		 6018 i++;
6019 }
6020 } else {
34850ab2
JB		 6021 enum ieee80211_band band;
6022
2a519311 6023 /* all channels */
2a519311
JB		 6024 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6025 int j;
6026 if (!wiphy->bands[band])
6027 continue;
6028 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6029 struct ieee80211_channel *chan;
6030
6031 chan = &wiphy->bands[band]->channels[j];
6032
6033 if (chan->flags & IEEE80211_CHAN_DISABLED)
6034 continue;
6035
6036 request->channels[i] = chan;
2a519311
JB		 6037 i++;
6038 }
6039 }
6040 }
6041
584991dc
JB		 6042 if (!i) {
6043 err = -EINVAL;
6044 goto out_free;
6045 }
6046
6047 request->n_channels = i;
6048
2a519311 6049 i = 0;
13874e4b 6050 if (n_ssids) {
2a519311 6051 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6052 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6053 err = -EINVAL;
6054 goto out_free;
6055 }
57a27e1d 6056 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6057 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6058 i++;
6059 }
6060 }
6061
70692ad2
JM		 6062 if (info->attrs[NL80211_ATTR_IE]) {
6063 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6064 memcpy((void *)request->ie,
6065 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6066 request->ie_len);
6067 }
6068
34850ab2 6069 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 6070 if (wiphy->bands[i])
6071 request->rates[i] =
6072 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6073
6074 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6075 nla_for_each_nested(attr,
6076 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6077 tmp) {
6078 enum ieee80211_band band = nla_type(attr);
6079
84404623 6080 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 6081 err = -EINVAL;
6082 goto out_free;
6083 }
1b09cd82
FF		 6084
6085 if (!wiphy->bands[band])
6086 continue;
6087
34850ab2
JB		 6088 err = ieee80211_get_ratemask(wiphy->bands[band],
6089 nla_data(attr),
6090 nla_len(attr),
6091 &request->rates[band]);
6092 if (err)
6093 goto out_free;
6094 }
6095 }
6096
46856bbf 6097 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 6098 request->flags = nla_get_u32(
6099 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6100 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6101 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6102 err = -EOPNOTSUPP;
6103 goto out_free;
6104 }
ad2b26ab
JB		 6105
6106 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6107 if (!(wiphy->features &
6108 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6109 err = -EOPNOTSUPP;
6110 goto out_free;
6111 }
6112
6113 if (wdev->current_bss) {
6114 err = -EOPNOTSUPP;
6115 goto out_free;
6116 }
6117
6118 err = nl80211_parse_random_mac(info->attrs,
6119 request->mac_addr,
6120 request->mac_addr_mask);
6121 if (err)
6122 goto out_free;
6123 }
46856bbf 6124 }
ed473771 6125
e9f935e3
RM		 6126 request->no_cck =
6127 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6128
818965d3
JM		 6129 if (info->attrs[NL80211_ATTR_MAC])
6130 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6131 ETH_ALEN);
6132 else
6133 eth_broadcast_addr(request->bssid);
6134
fd014284 6135 request->wdev = wdev;
79c97e97 6136 request->wiphy = &rdev->wiphy;
15d6030b 6137 request->scan_start = jiffies;
2a519311 6138
79c97e97 6139 rdev->scan_req = request;
e35e4d28 6140 err = rdev_scan(rdev, request);
2a519311 6141
463d0183 6142 if (!err) {
fd014284
JB		 6143 nl80211_send_scan_start(rdev, wdev);
6144 if (wdev->netdev)
6145 dev_hold(wdev->netdev);
4c476991 6146 } else {
2a519311 6147 out_free:
79c97e97 6148 rdev->scan_req = NULL;
2a519311
JB		 6149 kfree(request);
6150 }
3b85875a 6151
f9f47529 6152 unlock:
2a519311
JB		 6153 return err;
6154}
6155
91d3ab46
VK		 6156static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6157{
6158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6159 struct wireless_dev *wdev = info->user_ptr[1];
6160
6161 if (!rdev->ops->abort_scan)
6162 return -EOPNOTSUPP;
6163
6164 if (rdev->scan_msg)
6165 return 0;
6166
6167 if (!rdev->scan_req)
6168 return -ENOENT;
6169
6170 rdev_abort_scan(rdev, wdev);
6171 return 0;
6172}
6173
3b06d277
AS		 6174static int
6175nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6176 struct cfg80211_sched_scan_request *request,
6177 struct nlattr **attrs)
6178{
6179 int tmp, err, i = 0;
6180 struct nlattr *attr;
6181
6182 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6183 u32 interval;
6184
6185 /*
6186 * If scan plans are not specified,
6187 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6188 * case one scan plan will be set with the specified scan
6189 * interval and infinite number of iterations.
6190 */
6191 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6192 return -EINVAL;
6193
6194 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6195 if (!interval)
6196 return -EINVAL;
6197
6198 request->scan_plans[0].interval =
6199 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6200 if (!request->scan_plans[0].interval)
6201 return -EINVAL;
6202
6203 if (request->scan_plans[0].interval >
6204 wiphy->max_sched_scan_plan_interval)
6205 request->scan_plans[0].interval =
6206 wiphy->max_sched_scan_plan_interval;
6207
6208 return 0;
6209 }
6210
6211 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6212 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6213
6214 if (WARN_ON(i >= n_plans))
6215 return -EINVAL;
6216
6217 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6218 nla_data(attr), nla_len(attr),
6219 nl80211_plan_policy);
6220 if (err)
6221 return err;
6222
6223 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6224 return -EINVAL;
6225
6226 request->scan_plans[i].interval =
6227 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6228 if (!request->scan_plans[i].interval ||
6229 request->scan_plans[i].interval >
6230 wiphy->max_sched_scan_plan_interval)
6231 return -EINVAL;
6232
6233 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6234 request->scan_plans[i].iterations =
6235 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6236 if (!request->scan_plans[i].iterations ||
6237 (request->scan_plans[i].iterations >
6238 wiphy->max_sched_scan_plan_iterations))
6239 return -EINVAL;
6240 } else if (i < n_plans - 1) {
6241 /*
6242 * All scan plans but the last one must specify
6243 * a finite number of iterations
6244 */
6245 return -EINVAL;
6246 }
6247
6248 i++;
6249 }
6250
6251 /*
6252 * The last scan plan must not specify the number of
6253 * iterations, it is supposed to run infinitely
6254 */
6255 if (request->scan_plans[n_plans - 1].iterations)
6256 return -EINVAL;
6257
6258 return 0;
6259}
6260
256da02d 6261static struct cfg80211_sched_scan_request *
ad2b26ab 6262nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 6263 struct nlattr **attrs)
807f8a8c
LC		 6264{
6265 struct cfg80211_sched_scan_request *request;
807f8a8c 6266 struct nlattr *attr;
3b06d277 6267 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
807f8a8c
LC		 6268 enum ieee80211_band band;
6269 size_t ie_len;
a1f1c21c 6270 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6271 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6272
256da02d
LC		 6273 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6274 return ERR_PTR(-EINVAL);
807f8a8c 6275
256da02d 6276 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6277 n_channels = validate_scan_freqs(
256da02d 6278 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6279 if (!n_channels)
256da02d 6280 return ERR_PTR(-EINVAL);
807f8a8c 6281 } else {
bdfbec2d 6282 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6283 }
6284
256da02d
LC		 6285 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6286 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6287 tmp)
6288 n_ssids++;
6289
93b6aa69 6290 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6291 return ERR_PTR(-EINVAL);
807f8a8c 6292
ea73cbce
JB		 6293 /*
6294 * First, count the number of 'real' matchsets. Due to an issue with
6295 * the old implementation, matchsets containing only the RSSI attribute
6296 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6297 * RSSI for all matchsets, rather than their own matchset for reporting
6298 * all APs with a strong RSSI. This is needed to be compatible with
6299 * older userspace that treated a matchset with only the RSSI as the
6300 * global RSSI for all other matchsets - if there are other matchsets.
6301 */
256da02d 6302 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6303 nla_for_each_nested(attr,
256da02d 6304 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6305 tmp) {
6306 struct nlattr *rssi;
6307
6308 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6309 nla_data(attr), nla_len(attr),
6310 nl80211_match_policy);
6311 if (err)
256da02d 6312 return ERR_PTR(err);
ea73cbce
JB		 6313 /* add other standalone attributes here */
6314 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6315 n_match_sets++;
6316 continue;
6317 }
6318 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6319 if (rssi)
6320 default_match_rssi = nla_get_s32(rssi);
6321 }
6322 }
6323
6324 /* However, if there's no other matchset, add the RSSI one */
6325 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6326 n_match_sets = 1;
a1f1c21c
LC		 6327
6328 if (n_match_sets > wiphy->max_match_sets)
256da02d 6329 return ERR_PTR(-EINVAL);
a1f1c21c 6330
256da02d
LC		 6331 if (attrs[NL80211_ATTR_IE])
6332 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6333 else
6334 ie_len = 0;
6335
5a865bad 6336 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6337 return ERR_PTR(-EINVAL);
c10841ca 6338
3b06d277
AS		 6339 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6340 /*
6341 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6342 * each scan plan already specifies its own interval
6343 */
6344 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6345 return ERR_PTR(-EINVAL);
6346
6347 nla_for_each_nested(attr,
6348 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6349 n_plans++;
6350 } else {
6351 /*
6352 * The scan interval attribute is kept for backward
6353 * compatibility. If no scan plans are specified and sched scan
6354 * interval is specified, one scan plan will be set with this
6355 * scan interval and infinite number of iterations.
6356 */
6357 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6358 return ERR_PTR(-EINVAL);
6359
6360 n_plans = 1;
6361 }
6362
6363 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6364 return ERR_PTR(-EINVAL);
6365
807f8a8c 6366 request = kzalloc(sizeof(*request)
a2cd43c5 6367 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6368 + sizeof(*request->match_sets) * n_match_sets
3b06d277 6369 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 6370 + sizeof(*request->channels) * n_channels
807f8a8c 6371 + ie_len, GFP_KERNEL);
256da02d
LC		 6372 if (!request)
6373 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6374
6375 if (n_ssids)
6376 request->ssids = (void *)&request->channels[n_channels];
6377 request->n_ssids = n_ssids;
6378 if (ie_len) {
13874e4b 6379 if (n_ssids)
807f8a8c
LC		 6380 request->ie = (void *)(request->ssids + n_ssids);
6381 else
6382 request->ie = (void *)(request->channels + n_channels);
6383 }
6384
a1f1c21c
LC		 6385 if (n_match_sets) {
6386 if (request->ie)
6387 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6388 else if (n_ssids)
a1f1c21c
LC		 6389 request->match_sets =
6390 (void *)(request->ssids + n_ssids);
6391 else
6392 request->match_sets =
6393 (void *)(request->channels + n_channels);
6394 }
6395 request->n_match_sets = n_match_sets;
6396
3b06d277
AS		 6397 if (n_match_sets)
6398 request->scan_plans = (void *)(request->match_sets +
6399 n_match_sets);
6400 else if (request->ie)
6401 request->scan_plans = (void *)(request->ie + ie_len);
6402 else if (n_ssids)
6403 request->scan_plans = (void *)(request->ssids + n_ssids);
6404 else
6405 request->scan_plans = (void *)(request->channels + n_channels);
6406
6407 request->n_scan_plans = n_plans;
6408
807f8a8c 6409 i = 0;
256da02d 6410 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6411 /* user specified, bail out if channel not found */
6412 nla_for_each_nested(attr,
256da02d 6413 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6414 tmp) {
6415 struct ieee80211_channel *chan;
6416
6417 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6418
6419 if (!chan) {
6420 err = -EINVAL;
6421 goto out_free;
6422 }
6423
6424 /* ignore disabled channels */
6425 if (chan->flags & IEEE80211_CHAN_DISABLED)
6426 continue;
6427
6428 request->channels[i] = chan;
6429 i++;
6430 }
6431 } else {
6432 /* all channels */
6433 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6434 int j;
6435 if (!wiphy->bands[band])
6436 continue;
6437 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6438 struct ieee80211_channel *chan;
6439
6440 chan = &wiphy->bands[band]->channels[j];
6441
6442 if (chan->flags & IEEE80211_CHAN_DISABLED)
6443 continue;
6444
6445 request->channels[i] = chan;
6446 i++;
6447 }
6448 }
6449 }
6450
6451 if (!i) {
6452 err = -EINVAL;
6453 goto out_free;
6454 }
6455
6456 request->n_channels = i;
6457
6458 i = 0;
13874e4b 6459 if (n_ssids) {
256da02d 6460 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6461 tmp) {
57a27e1d 6462 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6463 err = -EINVAL;
6464 goto out_free;
6465 }
57a27e1d 6466 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6467 memcpy(request->ssids[i].ssid, nla_data(attr),
6468 nla_len(attr));
807f8a8c
LC		 6469 i++;
6470 }
6471 }
6472
a1f1c21c 6473 i = 0;
256da02d 6474 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6475 nla_for_each_nested(attr,
256da02d 6476 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6477 tmp) {
88e920b4 6478 struct nlattr *ssid, *rssi;
a1f1c21c 6479
ae811e21
JB		 6480 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6481 nla_data(attr), nla_len(attr),
6482 nl80211_match_policy);
6483 if (err)
6484 goto out_free;
4a4ab0d7 6485 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6486 if (ssid) {
ea73cbce
JB		 6487 if (WARN_ON(i >= n_match_sets)) {
6488 /* this indicates a programming error,
6489 * the loop above should have verified
6490 * things properly
6491 */
6492 err = -EINVAL;
6493 goto out_free;
6494 }
6495
a1f1c21c
LC		 6496 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6497 err = -EINVAL;
6498 goto out_free;
6499 }
6500 memcpy(request->match_sets[i].ssid.ssid,
6501 nla_data(ssid), nla_len(ssid));
6502 request->match_sets[i].ssid.ssid_len =
6503 nla_len(ssid);
ea73cbce
JB		 6504 /* special attribute - old implemenation w/a */
6505 request->match_sets[i].rssi_thold =
6506 default_match_rssi;
6507 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6508 if (rssi)
6509 request->match_sets[i].rssi_thold =
6510 nla_get_s32(rssi);
a1f1c21c
LC		 6511 }
6512 i++;
6513 }
ea73cbce
JB		 6514
6515 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6516 if (i == 0 && n_match_sets)
ea73cbce
JB		 6517 request->match_sets[0].rssi_thold = default_match_rssi;
6518
6519 request->min_rssi_thold = INT_MAX;
6520 for (i = 0; i < n_match_sets; i++)
6521 request->min_rssi_thold =
6522 min(request->match_sets[i].rssi_thold,
6523 request->min_rssi_thold);
6524 } else {
6525 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6526 }
6527
9900e484
JB		 6528 if (ie_len) {
6529 request->ie_len = ie_len;
807f8a8c 6530 memcpy((void *)request->ie,
256da02d 6531 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6532 request->ie_len);
6533 }
6534
256da02d 6535 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6536 request->flags = nla_get_u32(
256da02d 6537 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6538 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6539 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6540 err = -EOPNOTSUPP;
6541 goto out_free;
6542 }
ad2b26ab
JB		 6543
6544 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6545 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6546
6547 if (!wdev) /* must be net-detect */
6548 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6549
6550 if (!(wiphy->features & flg)) {
6551 err = -EOPNOTSUPP;
6552 goto out_free;
6553 }
6554
6555 if (wdev && wdev->current_bss) {
6556 err = -EOPNOTSUPP;
6557 goto out_free;
6558 }
6559
6560 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6561 request->mac_addr_mask);
6562 if (err)
6563 goto out_free;
6564 }
46856bbf 6565 }
ed473771 6566
9c748934
LC		 6567 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6568 request->delay =
6569 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6570
3b06d277
AS		 6571 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6572 if (err)
6573 goto out_free;
6574
15d6030b 6575 request->scan_start = jiffies;
807f8a8c 6576
256da02d 6577 return request;
807f8a8c
LC		 6578
6579out_free:
6580 kfree(request);
256da02d
LC		 6581 return ERR_PTR(err);
6582}
6583
6584static int nl80211_start_sched_scan(struct sk_buff *skb,
6585 struct genl_info *info)
6586{
6587 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6588 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6589 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6590 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6591 int err;
6592
6593 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6594 !rdev->ops->sched_scan_start)
6595 return -EOPNOTSUPP;
6596
6597 if (rdev->sched_scan_req)
6598 return -EINPROGRESS;
6599
31a60ed1
JR		 6600 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6601 info->attrs);
6602
6603 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6604 if (err)
6605 goto out_err;
6606
31a60ed1 6607 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6608 if (err)
6609 goto out_free;
6610
31a60ed1
JR		 6611 sched_scan_req->dev = dev;
6612 sched_scan_req->wiphy = &rdev->wiphy;
6613
93a1e86c
JR		 6614 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6615 sched_scan_req->owner_nlportid = info->snd_portid;
6616
31a60ed1 6617 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6618
6619 nl80211_send_sched_scan(rdev, dev,
6620 NL80211_CMD_START_SCHED_SCAN);
6621 return 0;
6622
6623out_free:
31a60ed1 6624 kfree(sched_scan_req);
256da02d 6625out_err:
807f8a8c
LC		 6626 return err;
6627}
6628
6629static int nl80211_stop_sched_scan(struct sk_buff *skb,
6630 struct genl_info *info)
6631{
6632 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6633
6634 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6635 !rdev->ops->sched_scan_stop)
6636 return -EOPNOTSUPP;
6637
5fe231e8 6638 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6639}
6640
04f39047
SW		 6641static int nl80211_start_radar_detection(struct sk_buff *skb,
6642 struct genl_info *info)
6643{
6644 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6645 struct net_device *dev = info->user_ptr[1];
6646 struct wireless_dev *wdev = dev->ieee80211_ptr;
6647 struct cfg80211_chan_def chandef;
55f7435c 6648 enum nl80211_dfs_regions dfs_region;
31559f35 6649 unsigned int cac_time_ms;
04f39047
SW		 6650 int err;
6651
55f7435c
LR		 6652 dfs_region = reg_get_dfs_region(wdev->wiphy);
6653 if (dfs_region == NL80211_DFS_UNSET)
6654 return -EINVAL;
6655
04f39047
SW		 6656 err = nl80211_parse_chandef(rdev, info, &chandef);
6657 if (err)
6658 return err;
6659
ff311bc1
SW		 6660 if (netif_carrier_ok(dev))
6661 return -EBUSY;
6662
04f39047
SW		 6663 if (wdev->cac_started)
6664 return -EBUSY;
6665
2beb6dab 6666 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6667 wdev->iftype);
04f39047
SW		 6668 if (err < 0)
6669 return err;
6670
6671 if (err == 0)
6672 return -EINVAL;
6673
fe7c3a1f 6674 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6675 return -EINVAL;
6676
6677 if (!rdev->ops->start_radar_detection)
6678 return -EOPNOTSUPP;
6679
31559f35
JD		 6680 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6681 if (WARN_ON(!cac_time_ms))
6682 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6683
a1056b1b 6684 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 6685 if (!err) {
9e0e2961 6686 wdev->chandef = chandef;
04f39047
SW		 6687 wdev->cac_started = true;
6688 wdev->cac_start_time = jiffies;
31559f35 6689 wdev->cac_time_ms = cac_time_ms;
04f39047 6690 }
04f39047
SW		 6691 return err;
6692}
6693
16ef1fe2
SW		 6694static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6695{
6696 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6697 struct net_device *dev = info->user_ptr[1];
6698 struct wireless_dev *wdev = dev->ieee80211_ptr;
6699 struct cfg80211_csa_settings params;
6700 /* csa_attrs is defined static to avoid waste of stack size - this
6701 * function is called under RTNL lock, so this should not be a problem.
6702 */
6703 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6704 int err;
ee4bc9e7 6705 bool need_new_beacon = false;
9a774c78 6706 int len, i;
252e07ca 6707 u32 cs_count;
16ef1fe2
SW		 6708
6709 if (!rdev->ops->channel_switch ||
6710 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6711 return -EOPNOTSUPP;
6712
ee4bc9e7
SW		 6713 switch (dev->ieee80211_ptr->iftype) {
6714 case NL80211_IFTYPE_AP:
6715 case NL80211_IFTYPE_P2P_GO:
6716 need_new_beacon = true;
6717
6718 /* useless if AP is not running */
6719 if (!wdev->beacon_interval)
1ff79dfa 6720 return -ENOTCONN;
ee4bc9e7
SW		 6721 break;
6722 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6723 if (!wdev->ssid_len)
6724 return -ENOTCONN;
6725 break;
c6da674a 6726 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6727 if (!wdev->mesh_id_len)
6728 return -ENOTCONN;
ee4bc9e7
SW		 6729 break;
6730 default:
16ef1fe2 6731 return -EOPNOTSUPP;
ee4bc9e7 6732 }
16ef1fe2
SW		 6733
6734 memset(&params, 0, sizeof(params));
6735
6736 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6737 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6738 return -EINVAL;
6739
6740 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6741 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6742 return -EINVAL;
6743
252e07ca
LC		 6744 /* Even though the attribute is u32, the specification says
6745 * u8, so let's make sure we don't overflow.
6746 */
6747 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6748 if (cs_count > 255)
6749 return -EINVAL;
6750
6751 params.count = cs_count;
16ef1fe2 6752
ee4bc9e7
SW		 6753 if (!need_new_beacon)
6754 goto skip_beacons;
6755
16ef1fe2
SW		 6756 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6757 if (err)
6758 return err;
6759
6760 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6761 info->attrs[NL80211_ATTR_CSA_IES],
6762 nl80211_policy);
6763 if (err)
6764 return err;
6765
6766 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6767 if (err)
6768 return err;
6769
6770 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6771 return -EINVAL;
6772
9a774c78
AO		 6773 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6774 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6775 return -EINVAL;
6776
9a774c78
AO		 6777 params.n_counter_offsets_beacon = len / sizeof(u16);
6778 if (rdev->wiphy.max_num_csa_counters &&
6779 (params.n_counter_offsets_beacon >
6780 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6781 return -EINVAL;
6782
9a774c78
AO		 6783 params.counter_offsets_beacon =
6784 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6785
6786 /* sanity checks - counters should fit and be the same */
6787 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6788 u16 offset = params.counter_offsets_beacon[i];
6789
6790 if (offset >= params.beacon_csa.tail_len)
6791 return -EINVAL;
6792
6793 if (params.beacon_csa.tail[offset] != params.count)
6794 return -EINVAL;
6795 }
6796
16ef1fe2 6797 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6798 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6799 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6800 return -EINVAL;
6801
9a774c78
AO		 6802 params.n_counter_offsets_presp = len / sizeof(u16);
6803 if (rdev->wiphy.max_num_csa_counters &&
6804 (params.n_counter_offsets_beacon >
6805 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6806 return -EINVAL;
9a774c78
AO		 6807
6808 params.counter_offsets_presp =
6809 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6810
6811 /* sanity checks - counters should fit and be the same */
6812 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6813 u16 offset = params.counter_offsets_presp[i];
6814
6815 if (offset >= params.beacon_csa.probe_resp_len)
6816 return -EINVAL;
6817
6818 if (params.beacon_csa.probe_resp[offset] !=
6819 params.count)
6820 return -EINVAL;
6821 }
16ef1fe2
SW		 6822 }
6823
ee4bc9e7 6824skip_beacons:
16ef1fe2
SW		 6825 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6826 if (err)
6827 return err;
6828
923b352f
AN		 6829 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
6830 wdev->iftype))
16ef1fe2
SW		 6831 return -EINVAL;
6832
2beb6dab
LC		 6833 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6834 &params.chandef,
6835 wdev->iftype);
6836 if (err < 0)
6837 return err;
6838
dcc6c2f5 6839 if (err > 0)
2beb6dab 6840 params.radar_required = true;
16ef1fe2 6841
16ef1fe2
SW		 6842 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6843 params.block_tx = true;
6844
c56589ed
SW		 6845 wdev_lock(wdev);
6846 err = rdev_channel_switch(rdev, dev, &params);
6847 wdev_unlock(wdev);
6848
6849 return err;
16ef1fe2
SW		 6850}
6851
9720bb3a
JB		 6852static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6853 u32 seq, int flags,
2a519311 6854 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6855 struct wireless_dev *wdev,
6856 struct cfg80211_internal_bss *intbss)
2a519311 6857{
48ab905d 6858 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6859 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6860 void *hdr;
6861 struct nlattr *bss;
48ab905d
JB		 6862
6863 ASSERT_WDEV_LOCK(wdev);
2a519311 6864
15e47304 6865 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6866 NL80211_CMD_NEW_SCAN_RESULTS);
6867 if (!hdr)
6868 return -1;
6869
9720bb3a
JB		 6870 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6871
97990a06
JB		 6872 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6873 goto nla_put_failure;
6874 if (wdev->netdev &&
9360ffd1
DM		 6875 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6876 goto nla_put_failure;
97990a06
JB		 6877 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6878 goto nla_put_failure;
2a519311
JB		 6879
6880 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6881 if (!bss)
6882 goto nla_put_failure;
9360ffd1 6883 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6884 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6885 goto nla_put_failure;
9caf0364
JB		 6886
6887 rcu_read_lock();
0e227084
JB		 6888 /* indicate whether we have probe response data or not */
6889 if (rcu_access_pointer(res->proberesp_ies) &&
6890 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6891 goto fail_unlock_rcu;
6892
6893 /* this pointer prefers to be pointed to probe response data
6894 * but is always valid
6895 */
9caf0364 6896 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6897 if (ies) {
6898 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6899 goto fail_unlock_rcu;
8cef2c9d
JB		 6900 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6901 ies->len, ies->data))
6902 goto fail_unlock_rcu;
9caf0364 6903 }
0e227084
JB		 6904
6905 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6906 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6907 if (ies && ies->from_beacon) {
6908 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6909 goto fail_unlock_rcu;
6910 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6911 ies->len, ies->data))
6912 goto fail_unlock_rcu;
9caf0364
JB		 6913 }
6914 rcu_read_unlock();
6915
9360ffd1
DM		 6916 if (res->beacon_interval &&
6917 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6918 goto nla_put_failure;
6919 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6920 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6921 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6922 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6923 jiffies_to_msecs(jiffies - intbss->ts)))
6924 goto nla_put_failure;
2a519311 6925
6e19bc4b
DS		 6926 if (intbss->ts_boottime &&
6927 nla_put_u64(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
6928 intbss->ts_boottime))
6929 goto nla_put_failure;
6930
77965c97 6931 switch (rdev->wiphy.signal_type) {
2a519311 6932 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6933 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6934 goto nla_put_failure;
2a519311
JB		 6935 break;
6936 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6937 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6938 goto nla_put_failure;
2a519311
JB		 6939 break;
6940 default:
6941 break;
6942 }
6943
48ab905d 6944 switch (wdev->iftype) {
074ac8df 6945 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6946 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6947 if (intbss == wdev->current_bss &&
6948 nla_put_u32(msg, NL80211_BSS_STATUS,
6949 NL80211_BSS_STATUS_ASSOCIATED))
6950 goto nla_put_failure;
48ab905d
JB		 6951 break;
6952 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6953 if (intbss == wdev->current_bss &&
6954 nla_put_u32(msg, NL80211_BSS_STATUS,
6955 NL80211_BSS_STATUS_IBSS_JOINED))
6956 goto nla_put_failure;
48ab905d
JB		 6957 break;
6958 default:
6959 break;
6960 }
6961
2a519311
JB		 6962 nla_nest_end(msg, bss);
6963
053c095a
JB		 6964 genlmsg_end(msg, hdr);
6965 return 0;
2a519311 6966
8cef2c9d
JB		 6967 fail_unlock_rcu:
6968 rcu_read_unlock();
2a519311
JB		 6969 nla_put_failure:
6970 genlmsg_cancel(msg, hdr);
6971 return -EMSGSIZE;
6972}
6973
97990a06 6974static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6975{
48ab905d 6976 struct cfg80211_registered_device *rdev;
2a519311 6977 struct cfg80211_internal_bss *scan;
48ab905d 6978 struct wireless_dev *wdev;
97990a06 6979 int start = cb->args[2], idx = 0;
2a519311
JB		 6980 int err;
6981
97990a06 6982 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6983 if (err)
6984 return err;
2a519311 6985
48ab905d
JB		 6986 wdev_lock(wdev);
6987 spin_lock_bh(&rdev->bss_lock);
6988 cfg80211_bss_expire(rdev);
6989
9720bb3a
JB		 6990 cb->seq = rdev->bss_generation;
6991
48ab905d 6992 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6993 if (++idx <= start)
6994 continue;
9720bb3a 6995 if (nl80211_send_bss(skb, cb,
2a519311 6996 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6997 rdev, wdev, scan) < 0) {
2a519311 6998 idx--;
67748893 6999 break;
2a519311
JB		 7000 }
7001 }
7002
48ab905d
JB		 7003 spin_unlock_bh(&rdev->bss_lock);
7004 wdev_unlock(wdev);
2a519311 7005
97990a06
JB		 7006 cb->args[2] = idx;
7007 nl80211_finish_wdev_dump(rdev);
2a519311 7008
67748893 7009 return skb->len;
2a519311
JB		 7010}
7011
15e47304 7012static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7013 int flags, struct net_device *dev,
7014 bool allow_radio_stats,
7015 struct survey_info *survey)
61fa713c
HS		 7016{
7017 void *hdr;
7018 struct nlattr *infoattr;
7019
11f78ac3
JB		 7020 /* skip radio stats if userspace didn't request them */
7021 if (!survey->channel && !allow_radio_stats)
7022 return 0;
7023
15e47304 7024 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7025 NL80211_CMD_NEW_SURVEY_RESULTS);
7026 if (!hdr)
7027 return -ENOMEM;
7028
9360ffd1
DM		 7029 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7030 goto nla_put_failure;
61fa713c
HS		 7031
7032 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7033 if (!infoattr)
7034 goto nla_put_failure;
7035
11f78ac3
JB		 7036 if (survey->channel &&
7037 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7038 survey->channel->center_freq))
7039 goto nla_put_failure;
7040
7041 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7042 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7043 goto nla_put_failure;
7044 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7045 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7046 goto nla_put_failure;
4ed20beb
JB		 7047 if ((survey->filled & SURVEY_INFO_TIME) &&
7048 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
7049 survey->time))
9360ffd1 7050 goto nla_put_failure;
4ed20beb
JB		 7051 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
7052 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7053 survey->time_busy))
9360ffd1 7054 goto nla_put_failure;
4ed20beb
JB		 7055 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
7056 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7057 survey->time_ext_busy))
9360ffd1 7058 goto nla_put_failure;
4ed20beb
JB		 7059 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
7060 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
7061 survey->time_rx))
9360ffd1 7062 goto nla_put_failure;
4ed20beb
JB		 7063 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
7064 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
7065 survey->time_tx))
9360ffd1 7066 goto nla_put_failure;
052536ab
JB		 7067 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
7068 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7069 survey->time_scan))
7070 goto nla_put_failure;
61fa713c
HS		 7071
7072 nla_nest_end(msg, infoattr);
7073
053c095a
JB		 7074 genlmsg_end(msg, hdr);
7075 return 0;
61fa713c
HS		 7076
7077 nla_put_failure:
7078 genlmsg_cancel(msg, hdr);
7079 return -EMSGSIZE;
7080}
7081
11f78ac3 7082static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 7083{
7084 struct survey_info survey;
1b8ec87a 7085 struct cfg80211_registered_device *rdev;
97990a06
JB		 7086 struct wireless_dev *wdev;
7087 int survey_idx = cb->args[2];
61fa713c 7088 int res;
11f78ac3 7089 bool radio_stats;
61fa713c 7090
1b8ec87a 7091 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7092 if (res)
7093 return res;
61fa713c 7094
11f78ac3
JB		 7095 /* prepare_wdev_dump parsed the attributes */
7096 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
7097
97990a06
JB		 7098 if (!wdev->netdev) {
7099 res = -EINVAL;
7100 goto out_err;
7101 }
7102
1b8ec87a 7103 if (!rdev->ops->dump_survey) {
61fa713c
HS		 7104 res = -EOPNOTSUPP;
7105 goto out_err;
7106 }
7107
7108 while (1) {
1b8ec87a 7109 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 7110 if (res == -ENOENT)
7111 break;
7112 if (res)
7113 goto out_err;
7114
11f78ac3
JB		 7115 /* don't send disabled channels, but do send non-channel data */
7116 if (survey.channel &&
7117 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 7118 survey_idx++;
7119 continue;
7120 }
7121
61fa713c 7122 if (nl80211_send_survey(skb,
15e47304 7123 NETLINK_CB(cb->skb).portid,
61fa713c 7124 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 7125 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 7126 goto out;
7127 survey_idx++;
7128 }
7129
7130 out:
97990a06 7131 cb->args[2] = survey_idx;
61fa713c
HS		 7132 res = skb->len;
7133 out_err:
1b8ec87a 7134 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 7135 return res;
7136}
7137
b23aa676
SO		 7138static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7139{
7140 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7141 NL80211_WPA_VERSION_2));
7142}
7143
636a5d36
JM		 7144static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7145{
4c476991
JB		 7146 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7147 struct net_device *dev = info->user_ptr[1];
19957bb3 7148 struct ieee80211_channel *chan;
e39e5b5e
JM		 7149 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7150 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 7151 enum nl80211_auth_type auth_type;
fffd0934 7152 struct key_parse key;
d5cdfacb 7153 bool local_state_change;
636a5d36 7154
f4a11bb0
JB		 7155 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7156 return -EINVAL;
7157
7158 if (!info->attrs[NL80211_ATTR_MAC])
7159 return -EINVAL;
7160
1778092e
JM		 7161 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7162 return -EINVAL;
7163
19957bb3
JB		 7164 if (!info->attrs[NL80211_ATTR_SSID])
7165 return -EINVAL;
7166
7167 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7168 return -EINVAL;
7169
fffd0934
JB		 7170 err = nl80211_parse_key(info, &key);
7171 if (err)
7172 return err;
7173
7174 if (key.idx >= 0) {
e31b8213
JB		 7175 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7176 return -EINVAL;
fffd0934
JB		 7177 if (!key.p.key || !key.p.key_len)
7178 return -EINVAL;
7179 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7180 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7181 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7182 key.p.key_len != WLAN_KEY_LEN_WEP104))
7183 return -EINVAL;
7184 if (key.idx > 4)
7185 return -EINVAL;
7186 } else {
7187 key.p.key_len = 0;
7188 key.p.key = NULL;
7189 }
7190
afea0b7a
JB		 7191 if (key.idx >= 0) {
7192 int i;
7193 bool ok = false;
7194 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7195 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7196 ok = true;
7197 break;
7198 }
7199 }
4c476991
JB		 7200 if (!ok)
7201 return -EINVAL;
afea0b7a
JB		 7202 }
7203
4c476991
JB		 7204 if (!rdev->ops->auth)
7205 return -EOPNOTSUPP;
636a5d36 7206
074ac8df 7207 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7208 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7209 return -EOPNOTSUPP;
eec60b03 7210
19957bb3 7211 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7212 chan = nl80211_get_valid_chan(&rdev->wiphy,
7213 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7214 if (!chan)
4c476991 7215 return -EINVAL;
636a5d36 7216
19957bb3
JB		 7217 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7218 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7219
7220 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7221 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7222 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7223 }
7224
19957bb3 7225 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7226 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7227 return -EINVAL;
636a5d36 7228
e39e5b5e
JM		 7229 if (auth_type == NL80211_AUTHTYPE_SAE &&
7230 !info->attrs[NL80211_ATTR_SAE_DATA])
7231 return -EINVAL;
7232
7233 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7234 if (auth_type != NL80211_AUTHTYPE_SAE)
7235 return -EINVAL;
7236 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7237 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7238 /* need to include at least Auth Transaction and Status Code */
7239 if (sae_data_len < 4)
7240 return -EINVAL;
7241 }
7242
d5cdfacb
JM		 7243 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7244
95de817b
JB		 7245 /*
7246 * Since we no longer track auth state, ignore
7247 * requests to only change local state.
7248 */
7249 if (local_state_change)
7250 return 0;
7251
91bf9b26
JB		 7252 wdev_lock(dev->ieee80211_ptr);
7253 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7254 ssid, ssid_len, ie, ie_len,
7255 key.p.key, key.p.key_len, key.idx,
7256 sae_data, sae_data_len);
7257 wdev_unlock(dev->ieee80211_ptr);
7258 return err;
636a5d36
JM		 7259}
7260
c0692b8f
JB		 7261static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7262 struct genl_info *info,
3dc27d25
JB		 7263 struct cfg80211_crypto_settings *settings,
7264 int cipher_limit)
b23aa676 7265{
c0b2bbd8
JB		 7266 memset(settings, 0, sizeof(*settings));
7267
b23aa676
SO		 7268 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7269
c0692b8f
JB		 7270 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7271 u16 proto;
7272 proto = nla_get_u16(
7273 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7274 settings->control_port_ethertype = cpu_to_be16(proto);
7275 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7276 proto != ETH_P_PAE)
7277 return -EINVAL;
7278 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7279 settings->control_port_no_encrypt = true;
7280 } else
7281 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7282
b23aa676
SO		 7283 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7284 void *data;
7285 int len, i;
7286
7287 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7288 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7289 settings->n_ciphers_pairwise = len / sizeof(u32);
7290
7291 if (len % sizeof(u32))
7292 return -EINVAL;
7293
3dc27d25 7294 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 7295 return -EINVAL;
7296
7297 memcpy(settings->ciphers_pairwise, data, len);
7298
7299 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 7300 if (!cfg80211_supported_cipher_suite(
7301 &rdev->wiphy,
b23aa676
SO		 7302 settings->ciphers_pairwise[i]))
7303 return -EINVAL;
7304 }
7305
7306 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7307 settings->cipher_group =
7308 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 7309 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7310 settings->cipher_group))
b23aa676
SO		 7311 return -EINVAL;
7312 }
7313
7314 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7315 settings->wpa_versions =
7316 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7317 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7318 return -EINVAL;
7319 }
7320
7321 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7322 void *data;
6d30240e 7323 int len;
b23aa676
SO		 7324
7325 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7326 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7327 settings->n_akm_suites = len / sizeof(u32);
7328
7329 if (len % sizeof(u32))
7330 return -EINVAL;
7331
1b9ca027
JM		 7332 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7333 return -EINVAL;
7334
b23aa676 7335 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 7336 }
7337
7338 return 0;
7339}
7340
636a5d36
JM		 7341static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7342{
4c476991
JB		 7343 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7344 struct net_device *dev = info->user_ptr[1];
f444de05 7345 struct ieee80211_channel *chan;
f62fab73
JB		 7346 struct cfg80211_assoc_request req = {};
7347 const u8 *bssid, *ssid;
7348 int err, ssid_len = 0;
636a5d36 7349
f4a11bb0
JB		 7350 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7351 return -EINVAL;
7352
7353 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7354 !info->attrs[NL80211_ATTR_SSID] ||
7355 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7356 return -EINVAL;
7357
4c476991
JB		 7358 if (!rdev->ops->assoc)
7359 return -EOPNOTSUPP;
636a5d36 7360
074ac8df 7361 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7362 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7363 return -EOPNOTSUPP;
eec60b03 7364
19957bb3 7365 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7366
664834de
JM		 7367 chan = nl80211_get_valid_chan(&rdev->wiphy,
7368 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7369 if (!chan)
4c476991 7370 return -EINVAL;
636a5d36 7371
19957bb3
JB		 7372 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7373 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7374
7375 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7376 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7377 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7378 }
7379
dc6382ce 7380 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7381 enum nl80211_mfp mfp =
dc6382ce 7382 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7383 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7384 req.use_mfp = true;
4c476991
JB		 7385 else if (mfp != NL80211_MFP_NO)
7386 return -EINVAL;
dc6382ce
JM		 7387 }
7388
3e5d7649 7389 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7390 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7391
7e7c8926 7392 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7393 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7394
7395 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7396 memcpy(&req.ht_capa_mask,
7397 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7398 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7399
7400 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7401 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7402 return -EINVAL;
f62fab73
JB		 7403 memcpy(&req.ht_capa,
7404 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7405 sizeof(req.ht_capa));
7e7c8926
BG		 7406 }
7407
ee2aca34 7408 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7409 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7410
7411 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7412 memcpy(&req.vht_capa_mask,
7413 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7414 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7415
7416 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7417 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7418 return -EINVAL;
f62fab73
JB		 7419 memcpy(&req.vht_capa,
7420 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7421 sizeof(req.vht_capa));
ee2aca34
JB		 7422 }
7423
bab5ab7d 7424 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 7425 if (!((rdev->wiphy.features &
7426 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
7427 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
7428 !wiphy_ext_feature_isset(&rdev->wiphy,
7429 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 7430 return -EINVAL;
7431 req.flags |= ASSOC_REQ_USE_RRM;
7432 }
7433
f62fab73 7434 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7435 if (!err) {
7436 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7437 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7438 ssid, ssid_len, &req);
91bf9b26
JB		 7439 wdev_unlock(dev->ieee80211_ptr);
7440 }
636a5d36 7441
636a5d36
JM		 7442 return err;
7443}
7444
7445static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7446{
4c476991
JB		 7447 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7448 struct net_device *dev = info->user_ptr[1];
19957bb3 7449 const u8 *ie = NULL, *bssid;
91bf9b26 7450 int ie_len = 0, err;
19957bb3 7451 u16 reason_code;
d5cdfacb 7452 bool local_state_change;
636a5d36 7453
f4a11bb0
JB		 7454 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7455 return -EINVAL;
7456
7457 if (!info->attrs[NL80211_ATTR_MAC])
7458 return -EINVAL;
7459
7460 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7461 return -EINVAL;
7462
4c476991
JB		 7463 if (!rdev->ops->deauth)
7464 return -EOPNOTSUPP;
636a5d36 7465
074ac8df 7466 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7467 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7468 return -EOPNOTSUPP;
eec60b03 7469
19957bb3 7470 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7471
19957bb3
JB		 7472 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7473 if (reason_code == 0) {
f4a11bb0 7474 /* Reason Code 0 is reserved */
4c476991 7475 return -EINVAL;
255e737e 7476 }
636a5d36
JM		 7477
7478 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7479 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7480 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7481 }
7482
d5cdfacb
JM		 7483 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7484
91bf9b26
JB		 7485 wdev_lock(dev->ieee80211_ptr);
7486 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7487 local_state_change);
7488 wdev_unlock(dev->ieee80211_ptr);
7489 return err;
636a5d36
JM		 7490}
7491
7492static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7493{
4c476991
JB		 7494 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7495 struct net_device *dev = info->user_ptr[1];
19957bb3 7496 const u8 *ie = NULL, *bssid;
91bf9b26 7497 int ie_len = 0, err;
19957bb3 7498 u16 reason_code;
d5cdfacb 7499 bool local_state_change;
636a5d36 7500
f4a11bb0
JB		 7501 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7502 return -EINVAL;
7503
7504 if (!info->attrs[NL80211_ATTR_MAC])
7505 return -EINVAL;
7506
7507 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7508 return -EINVAL;
7509
4c476991
JB		 7510 if (!rdev->ops->disassoc)
7511 return -EOPNOTSUPP;
636a5d36 7512
074ac8df 7513 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7514 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7515 return -EOPNOTSUPP;
eec60b03 7516
19957bb3 7517 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7518
19957bb3
JB		 7519 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7520 if (reason_code == 0) {
f4a11bb0 7521 /* Reason Code 0 is reserved */
4c476991 7522 return -EINVAL;
255e737e 7523 }
636a5d36
JM		 7524
7525 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7526 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7527 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7528 }
7529
d5cdfacb
JM		 7530 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7531
91bf9b26
JB		 7532 wdev_lock(dev->ieee80211_ptr);
7533 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7534 local_state_change);
7535 wdev_unlock(dev->ieee80211_ptr);
7536 return err;
636a5d36
JM		 7537}
7538
dd5b4cc7
FF		 7539static bool
7540nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7541 int mcast_rate[IEEE80211_NUM_BANDS],
7542 int rateval)
7543{
7544 struct wiphy *wiphy = &rdev->wiphy;
7545 bool found = false;
7546 int band, i;
7547
7548 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7549 struct ieee80211_supported_band *sband;
7550
7551 sband = wiphy->bands[band];
7552 if (!sband)
7553 continue;
7554
7555 for (i = 0; i < sband->n_bitrates; i++) {
7556 if (sband->bitrates[i].bitrate == rateval) {
7557 mcast_rate[band] = i + 1;
7558 found = true;
7559 break;
7560 }
7561 }
7562 }
7563
7564 return found;
7565}
7566
04a773ad
JB		 7567static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7568{
4c476991
JB		 7569 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7570 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7571 struct cfg80211_ibss_params ibss;
7572 struct wiphy *wiphy;
fffd0934 7573 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7574 int err;
7575
8e30bc55
JB		 7576 memset(&ibss, 0, sizeof(ibss));
7577
04a773ad
JB		 7578 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7579 return -EINVAL;
7580
683b6d3b 7581 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7582 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7583 return -EINVAL;
7584
8e30bc55
JB		 7585 ibss.beacon_interval = 100;
7586
7587 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7588 ibss.beacon_interval =
7589 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7590 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7591 return -EINVAL;
7592 }
7593
4c476991
JB		 7594 if (!rdev->ops->join_ibss)
7595 return -EOPNOTSUPP;
04a773ad 7596
4c476991
JB		 7597 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7598 return -EOPNOTSUPP;
04a773ad 7599
79c97e97 7600 wiphy = &rdev->wiphy;
04a773ad 7601
39193498 7602 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7603 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7604
7605 if (!is_valid_ether_addr(ibss.bssid))
7606 return -EINVAL;
7607 }
04a773ad
JB		 7608 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7609 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7610
7611 if (info->attrs[NL80211_ATTR_IE]) {
7612 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7613 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7614 }
7615
683b6d3b
JB		 7616 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7617 if (err)
7618 return err;
04a773ad 7619
174e0cd2
IP		 7620 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7621 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7622 return -EINVAL;
7623
2f301ab2 7624 switch (ibss.chandef.width) {
bf372645
SW		 7625 case NL80211_CHAN_WIDTH_5:
7626 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7627 case NL80211_CHAN_WIDTH_20_NOHT:
7628 break;
7629 case NL80211_CHAN_WIDTH_20:
7630 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 7631 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7632 return -EINVAL;
7633 break;
7634 case NL80211_CHAN_WIDTH_80:
7635 case NL80211_CHAN_WIDTH_80P80:
7636 case NL80211_CHAN_WIDTH_160:
7637 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7638 return -EINVAL;
7639 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7640 NL80211_EXT_FEATURE_VHT_IBSS))
7641 return -EINVAL;
7642 break;
2f301ab2 7643 default:
c04d6150 7644 return -EINVAL;
2f301ab2 7645 }
db9c64cf 7646
04a773ad 7647 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7648 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7649
fbd2c8dc
TP		 7650 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7651 u8 *rates =
7652 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7653 int n_rates =
7654 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7655 struct ieee80211_supported_band *sband =
683b6d3b 7656 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7657
34850ab2
JB		 7658 err = ieee80211_get_ratemask(sband, rates, n_rates,
7659 &ibss.basic_rates);
7660 if (err)
7661 return err;
fbd2c8dc 7662 }
dd5b4cc7 7663
803768f5
SW		 7664 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7665 memcpy(&ibss.ht_capa_mask,
7666 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7667 sizeof(ibss.ht_capa_mask));
7668
7669 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7670 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7671 return -EINVAL;
7672 memcpy(&ibss.ht_capa,
7673 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7674 sizeof(ibss.ht_capa));
7675 }
7676
dd5b4cc7
FF		 7677 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7678 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7679 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7680 return -EINVAL;
fbd2c8dc 7681
4c476991 7682 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7683 bool no_ht = false;
7684
4c476991 7685 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7686 info->attrs[NL80211_ATTR_KEYS],
7687 &no_ht);
4c476991
JB		 7688 if (IS_ERR(connkeys))
7689 return PTR_ERR(connkeys);
de7044ee 7690
3d9d1d66
JB		 7691 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7692 no_ht) {
5e950a78 7693 kzfree(connkeys);
de7044ee
SM		 7694 return -EINVAL;
7695 }
4c476991 7696 }
04a773ad 7697
267335d6
AQ		 7698 ibss.control_port =
7699 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7700
5336fa88
SW		 7701 ibss.userspace_handles_dfs =
7702 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7703
4c476991 7704 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7705 if (err)
b47f610b 7706 kzfree(connkeys);
04a773ad
JB		 7707 return err;
7708}
7709
7710static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7711{
4c476991
JB		 7712 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7713 struct net_device *dev = info->user_ptr[1];
04a773ad 7714
4c476991
JB		 7715 if (!rdev->ops->leave_ibss)
7716 return -EOPNOTSUPP;
04a773ad 7717
4c476991
JB		 7718 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7719 return -EOPNOTSUPP;
04a773ad 7720
4c476991 7721 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7722}
7723
f4e583c8
AQ		 7724static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7725{
7726 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7727 struct net_device *dev = info->user_ptr[1];
7728 int mcast_rate[IEEE80211_NUM_BANDS];
7729 u32 nla_rate;
7730 int err;
7731
7732 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 7733 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7734 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 7735 return -EOPNOTSUPP;
7736
7737 if (!rdev->ops->set_mcast_rate)
7738 return -EOPNOTSUPP;
7739
7740 memset(mcast_rate, 0, sizeof(mcast_rate));
7741
7742 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7743 return -EINVAL;
7744
7745 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7746 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7747 return -EINVAL;
7748
a1056b1b 7749 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 7750
7751 return err;
7752}
7753
ad7e718c
JB		 7754static struct sk_buff *
7755__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 7756 struct wireless_dev *wdev, int approxlen,
7757 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 7758 enum nl80211_attrs attr,
7759 const struct nl80211_vendor_cmd_info *info,
7760 gfp_t gfp)
ad7e718c
JB		 7761{
7762 struct sk_buff *skb;
7763 void *hdr;
7764 struct nlattr *data;
7765
7766 skb = nlmsg_new(approxlen + 100, gfp);
7767 if (!skb)
7768 return NULL;
7769
7770 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7771 if (!hdr) {
7772 kfree_skb(skb);
7773 return NULL;
7774 }
7775
7776 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7777 goto nla_put_failure;
567ffc35
JB		 7778
7779 if (info) {
7780 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7781 info->vendor_id))
7782 goto nla_put_failure;
7783 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7784 info->subcmd))
7785 goto nla_put_failure;
7786 }
7787
6c09e791
AK		 7788 if (wdev) {
7789 if (nla_put_u64(skb, NL80211_ATTR_WDEV,
7790 wdev_id(wdev)))
7791 goto nla_put_failure;
7792 if (wdev->netdev &&
7793 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7794 wdev->netdev->ifindex))
7795 goto nla_put_failure;
7796 }
7797
ad7e718c
JB		 7798 data = nla_nest_start(skb, attr);
7799
7800 ((void **)skb->cb)[0] = rdev;
7801 ((void **)skb->cb)[1] = hdr;
7802 ((void **)skb->cb)[2] = data;
7803
7804 return skb;
7805
7806 nla_put_failure:
7807 kfree_skb(skb);
7808 return NULL;
7809}
f4e583c8 7810
e03ad6ea 7811struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 7812 struct wireless_dev *wdev,
e03ad6ea
JB		 7813 enum nl80211_commands cmd,
7814 enum nl80211_attrs attr,
7815 int vendor_event_idx,
7816 int approxlen, gfp_t gfp)
7817{
f26cbf40 7818 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7819 const struct nl80211_vendor_cmd_info *info;
7820
7821 switch (cmd) {
7822 case NL80211_CMD_TESTMODE:
7823 if (WARN_ON(vendor_event_idx != -1))
7824 return NULL;
7825 info = NULL;
7826 break;
7827 case NL80211_CMD_VENDOR:
7828 if (WARN_ON(vendor_event_idx < 0 ||
7829 vendor_event_idx >= wiphy->n_vendor_events))
7830 return NULL;
7831 info = &wiphy->vendor_events[vendor_event_idx];
7832 break;
7833 default:
7834 WARN_ON(1);
7835 return NULL;
7836 }
7837
6c09e791 7838 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 7839 cmd, attr, info, gfp);
7840}
7841EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7842
7843void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7844{
7845 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7846 void *hdr = ((void **)skb->cb)[1];
7847 struct nlattr *data = ((void **)skb->cb)[2];
7848 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7849
bd8c78e7
JB		 7850 /* clear CB data for netlink core to own from now on */
7851 memset(skb->cb, 0, sizeof(skb->cb));
7852
e03ad6ea
JB		 7853 nla_nest_end(skb, data);
7854 genlmsg_end(skb, hdr);
7855
7856 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7857 mcgrp = NL80211_MCGRP_VENDOR;
7858
7859 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7860 mcgrp, gfp);
7861}
7862EXPORT_SYMBOL(__cfg80211_send_event_skb);
7863
aff89a9b 7864#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7865static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7866{
4c476991 7867 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7868 struct wireless_dev *wdev =
7869 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7870 int err;
7871
fc73f11f
DS		 7872 if (!rdev->ops->testmode_cmd)
7873 return -EOPNOTSUPP;
7874
7875 if (IS_ERR(wdev)) {
7876 err = PTR_ERR(wdev);
7877 if (err != -EINVAL)
7878 return err;
7879 wdev = NULL;
7880 } else if (wdev->wiphy != &rdev->wiphy) {
7881 return -EINVAL;
7882 }
7883
aff89a9b
JB		 7884 if (!info->attrs[NL80211_ATTR_TESTDATA])
7885 return -EINVAL;
7886
ad7e718c 7887 rdev->cur_cmd_info = info;
fc73f11f 7888 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7889 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7890 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7891 rdev->cur_cmd_info = NULL;
aff89a9b 7892
aff89a9b
JB		 7893 return err;
7894}
7895
71063f0e
WYG		 7896static int nl80211_testmode_dump(struct sk_buff *skb,
7897 struct netlink_callback *cb)
7898{
00918d33 7899 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7900 int err;
7901 long phy_idx;
7902 void *data = NULL;
7903 int data_len = 0;
7904
5fe231e8
JB		 7905 rtnl_lock();
7906
71063f0e
WYG		 7907 if (cb->args[0]) {
7908 /*
7909 * 0 is a valid index, but not valid for args[0],
7910 * so we need to offset by 1.
7911 */
7912 phy_idx = cb->args[0] - 1;
7913 } else {
7914 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7915 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7916 nl80211_policy);
7917 if (err)
5fe231e8 7918 goto out_err;
00918d33 7919
2bd7e35d
JB		 7920 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7921 nl80211_fam.attrbuf);
7922 if (IS_ERR(rdev)) {
5fe231e8
JB		 7923 err = PTR_ERR(rdev);
7924 goto out_err;
00918d33 7925 }
2bd7e35d
JB		 7926 phy_idx = rdev->wiphy_idx;
7927 rdev = NULL;
2bd7e35d 7928
71063f0e
WYG		 7929 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7930 cb->args[1] =
7931 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7932 }
7933
7934 if (cb->args[1]) {
7935 data = nla_data((void *)cb->args[1]);
7936 data_len = nla_len((void *)cb->args[1]);
7937 }
7938
00918d33
JB		 7939 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7940 if (!rdev) {
5fe231e8
JB		 7941 err = -ENOENT;
7942 goto out_err;
71063f0e 7943 }
71063f0e 7944
00918d33 7945 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7946 err = -EOPNOTSUPP;
7947 goto out_err;
7948 }
7949
7950 while (1) {
15e47304 7951 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7952 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7953 NL80211_CMD_TESTMODE);
7954 struct nlattr *tmdata;
7955
cb35fba3
DC		 7956 if (!hdr)
7957 break;
7958
9360ffd1 7959 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7960 genlmsg_cancel(skb, hdr);
7961 break;
7962 }
7963
7964 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7965 if (!tmdata) {
7966 genlmsg_cancel(skb, hdr);
7967 break;
7968 }
e35e4d28 7969 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7970 nla_nest_end(skb, tmdata);
7971
7972 if (err == -ENOBUFS || err == -ENOENT) {
7973 genlmsg_cancel(skb, hdr);
7974 break;
7975 } else if (err) {
7976 genlmsg_cancel(skb, hdr);
7977 goto out_err;
7978 }
7979
7980 genlmsg_end(skb, hdr);
7981 }
7982
7983 err = skb->len;
7984 /* see above */
7985 cb->args[0] = phy_idx + 1;
7986 out_err:
5fe231e8 7987 rtnl_unlock();
71063f0e
WYG		 7988 return err;
7989}
aff89a9b
JB		 7990#endif
7991
b23aa676
SO		 7992static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7993{
4c476991
JB		 7994 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7995 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7996 struct cfg80211_connect_params connect;
7997 struct wiphy *wiphy;
fffd0934 7998 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7999 int err;
8000
8001 memset(&connect, 0, sizeof(connect));
8002
8003 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8004 return -EINVAL;
8005
8006 if (!info->attrs[NL80211_ATTR_SSID] ||
8007 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8008 return -EINVAL;
8009
8010 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8011 connect.auth_type =
8012 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8013 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8014 NL80211_CMD_CONNECT))
b23aa676
SO		 8015 return -EINVAL;
8016 } else
8017 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8018
8019 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8020
c0692b8f 8021 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8022 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8023 if (err)
8024 return err;
b23aa676 8025
074ac8df 8026 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8027 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8028 return -EOPNOTSUPP;
b23aa676 8029
79c97e97 8030 wiphy = &rdev->wiphy;
b23aa676 8031
4486ea98
BS		 8032 connect.bg_scan_period = -1;
8033 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8034 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8035 connect.bg_scan_period =
8036 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8037 }
8038
b23aa676
SO		 8039 if (info->attrs[NL80211_ATTR_MAC])
8040 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8041 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8042 connect.bssid_hint =
8043 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8044 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8045 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8046
8047 if (info->attrs[NL80211_ATTR_IE]) {
8048 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8049 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8050 }
8051
cee00a95
JM		 8052 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8053 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8054 if (connect.mfp != NL80211_MFP_REQUIRED &&
8055 connect.mfp != NL80211_MFP_NO)
8056 return -EINVAL;
8057 } else {
8058 connect.mfp = NL80211_MFP_NO;
8059 }
8060
ba6fbacf
JM		 8061 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8062 connect.prev_bssid =
8063 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8064
b23aa676 8065 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 8066 connect.channel = nl80211_get_valid_chan(
8067 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8068 if (!connect.channel)
1df4a510
JM		 8069 return -EINVAL;
8070 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 8071 connect.channel_hint = nl80211_get_valid_chan(
8072 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8073 if (!connect.channel_hint)
4c476991 8074 return -EINVAL;
b23aa676
SO		 8075 }
8076
fffd0934
JB		 8077 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8078 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 8079 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 8080 if (IS_ERR(connkeys))
8081 return PTR_ERR(connkeys);
fffd0934
JB		 8082 }
8083
7e7c8926
BG		 8084 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8085 connect.flags |= ASSOC_REQ_DISABLE_HT;
8086
8087 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8088 memcpy(&connect.ht_capa_mask,
8089 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8090 sizeof(connect.ht_capa_mask));
8091
8092 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 8093 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 8094 kzfree(connkeys);
7e7c8926 8095 return -EINVAL;
b4e4f47e 8096 }
7e7c8926
BG		 8097 memcpy(&connect.ht_capa,
8098 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8099 sizeof(connect.ht_capa));
8100 }
8101
ee2aca34
JB		 8102 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8103 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8104
8105 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8106 memcpy(&connect.vht_capa_mask,
8107 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8108 sizeof(connect.vht_capa_mask));
8109
8110 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8111 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 8112 kzfree(connkeys);
ee2aca34
JB		 8113 return -EINVAL;
8114 }
8115 memcpy(&connect.vht_capa,
8116 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8117 sizeof(connect.vht_capa));
8118 }
8119
bab5ab7d 8120 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8121 if (!((rdev->wiphy.features &
8122 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8123 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8124 !wiphy_ext_feature_isset(&rdev->wiphy,
8125 NL80211_EXT_FEATURE_RRM)) {
707554b4 8126 kzfree(connkeys);
bab5ab7d 8127 return -EINVAL;
707554b4 8128 }
bab5ab7d
AK		 8129 connect.flags |= ASSOC_REQ_USE_RRM;
8130 }
8131
34d50519
LD		 8132 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
8133 if (connect.pbss && !rdev->wiphy.bands[IEEE80211_BAND_60GHZ]) {
8134 kzfree(connkeys);
8135 return -EOPNOTSUPP;
8136 }
8137
38de03d2
AS		 8138 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8139 /* bss selection makes no sense if bssid is set */
8140 if (connect.bssid) {
8141 kzfree(connkeys);
8142 return -EINVAL;
8143 }
8144
8145 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8146 wiphy, &connect.bss_select);
8147 if (err) {
8148 kzfree(connkeys);
8149 return err;
8150 }
8151 }
8152
83739b03
JB		 8153 wdev_lock(dev->ieee80211_ptr);
8154 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
8155 wdev_unlock(dev->ieee80211_ptr);
fffd0934 8156 if (err)
b47f610b 8157 kzfree(connkeys);
b23aa676
SO		 8158 return err;
8159}
8160
8161static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8162{
4c476991
JB		 8163 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8164 struct net_device *dev = info->user_ptr[1];
b23aa676 8165 u16 reason;
83739b03 8166 int ret;
b23aa676
SO		 8167
8168 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8169 reason = WLAN_REASON_DEAUTH_LEAVING;
8170 else
8171 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8172
8173 if (reason == 0)
8174 return -EINVAL;
8175
074ac8df 8176 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8177 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8178 return -EOPNOTSUPP;
b23aa676 8179
83739b03
JB		 8180 wdev_lock(dev->ieee80211_ptr);
8181 ret = cfg80211_disconnect(rdev, dev, reason, true);
8182 wdev_unlock(dev->ieee80211_ptr);
8183 return ret;
b23aa676
SO		 8184}
8185
463d0183
JB		 8186static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8187{
4c476991 8188 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 8189 struct net *net;
8190 int err;
463d0183 8191
4b681c82
VK		 8192 if (info->attrs[NL80211_ATTR_PID]) {
8193 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8194
8195 net = get_net_ns_by_pid(pid);
8196 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8197 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 8198
4b681c82
VK		 8199 net = get_net_ns_by_fd(fd);
8200 } else {
8201 return -EINVAL;
8202 }
463d0183 8203
4c476991
JB		 8204 if (IS_ERR(net))
8205 return PTR_ERR(net);
463d0183
JB		 8206
8207 err = 0;
8208
8209 /* check if anything to do */
4c476991
JB		 8210 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8211 err = cfg80211_switch_netns(rdev, net);
463d0183 8212
463d0183 8213 put_net(net);
463d0183
JB		 8214 return err;
8215}
8216
67fbb16b
SO		 8217static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8218{
4c476991 8219 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 8220 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8221 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 8222 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 8223 struct cfg80211_pmksa pmksa;
8224
8225 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8226
8227 if (!info->attrs[NL80211_ATTR_MAC])
8228 return -EINVAL;
8229
8230 if (!info->attrs[NL80211_ATTR_PMKID])
8231 return -EINVAL;
8232
67fbb16b
SO		 8233 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8234 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8235
074ac8df 8236 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8237 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8238 return -EOPNOTSUPP;
67fbb16b
SO		 8239
8240 switch (info->genlhdr->cmd) {
8241 case NL80211_CMD_SET_PMKSA:
8242 rdev_ops = rdev->ops->set_pmksa;
8243 break;
8244 case NL80211_CMD_DEL_PMKSA:
8245 rdev_ops = rdev->ops->del_pmksa;
8246 break;
8247 default:
8248 WARN_ON(1);
8249 break;
8250 }
8251
4c476991
JB		 8252 if (!rdev_ops)
8253 return -EOPNOTSUPP;
67fbb16b 8254
4c476991 8255 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 8256}
8257
8258static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8259{
4c476991
JB		 8260 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8261 struct net_device *dev = info->user_ptr[1];
67fbb16b 8262
074ac8df 8263 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8264 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8265 return -EOPNOTSUPP;
67fbb16b 8266
4c476991
JB		 8267 if (!rdev->ops->flush_pmksa)
8268 return -EOPNOTSUPP;
67fbb16b 8269
e35e4d28 8270 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 8271}
8272
109086ce
AN		 8273static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8274{
8275 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8276 struct net_device *dev = info->user_ptr[1];
8277 u8 action_code, dialog_token;
df942e7b 8278 u32 peer_capability = 0;
109086ce
AN		 8279 u16 status_code;
8280 u8 *peer;
31fa97c5 8281 bool initiator;
109086ce
AN		 8282
8283 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8284 !rdev->ops->tdls_mgmt)
8285 return -EOPNOTSUPP;
8286
8287 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8288 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8289 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8290 !info->attrs[NL80211_ATTR_IE] ||
8291 !info->attrs[NL80211_ATTR_MAC])
8292 return -EINVAL;
8293
8294 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8295 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8296 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8297 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 8298 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 8299 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8300 peer_capability =
8301 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 8302
e35e4d28 8303 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 8304 dialog_token, status_code, peer_capability,
31fa97c5 8305 initiator,
e35e4d28
HG		 8306 nla_data(info->attrs[NL80211_ATTR_IE]),
8307 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 8308}
8309
8310static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8311{
8312 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8313 struct net_device *dev = info->user_ptr[1];
8314 enum nl80211_tdls_operation operation;
8315 u8 *peer;
8316
8317 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8318 !rdev->ops->tdls_oper)
8319 return -EOPNOTSUPP;
8320
8321 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8322 !info->attrs[NL80211_ATTR_MAC])
8323 return -EINVAL;
8324
8325 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8326 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8327
e35e4d28 8328 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 8329}
8330
9588bbd5
JM		 8331static int nl80211_remain_on_channel(struct sk_buff *skb,
8332 struct genl_info *info)
8333{
4c476991 8334 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8335 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8336 struct cfg80211_chan_def chandef;
9588bbd5
JM		 8337 struct sk_buff *msg;
8338 void *hdr;
8339 u64 cookie;
683b6d3b 8340 u32 duration;
9588bbd5
JM		 8341 int err;
8342
8343 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8344 !info->attrs[NL80211_ATTR_DURATION])
8345 return -EINVAL;
8346
8347 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8348
ebf348fc
JB		 8349 if (!rdev->ops->remain_on_channel ||
8350 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8351 return -EOPNOTSUPP;
8352
9588bbd5 8353 /*
ebf348fc
JB		 8354 * We should be on that channel for at least a minimum amount of
8355 * time (10ms) but no longer than the driver supports.
9588bbd5 8356 */
ebf348fc 8357 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 8358 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 8359 return -EINVAL;
8360
683b6d3b
JB		 8361 err = nl80211_parse_chandef(rdev, info, &chandef);
8362 if (err)
8363 return err;
9588bbd5
JM		 8364
8365 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8366 if (!msg)
8367 return -ENOMEM;
9588bbd5 8368
15e47304 8369 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 8370 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 8371 if (!hdr) {
8372 err = -ENOBUFS;
9588bbd5
JM		 8373 goto free_msg;
8374 }
8375
683b6d3b
JB		 8376 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8377 duration, &cookie);
9588bbd5
JM		 8378
8379 if (err)
8380 goto free_msg;
8381
9360ffd1
DM		 8382 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8383 goto nla_put_failure;
9588bbd5
JM		 8384
8385 genlmsg_end(msg, hdr);
4c476991
JB		 8386
8387 return genlmsg_reply(msg, info);
9588bbd5
JM		 8388
8389 nla_put_failure:
8390 err = -ENOBUFS;
8391 free_msg:
8392 nlmsg_free(msg);
9588bbd5
JM		 8393 return err;
8394}
8395
8396static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8397 struct genl_info *info)
8398{
4c476991 8399 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8400 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8401 u64 cookie;
9588bbd5
JM		 8402
8403 if (!info->attrs[NL80211_ATTR_COOKIE])
8404 return -EINVAL;
8405
4c476991
JB		 8406 if (!rdev->ops->cancel_remain_on_channel)
8407 return -EOPNOTSUPP;
9588bbd5 8408
9588bbd5
JM		 8409 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8410
e35e4d28 8411 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8412}
8413
13ae75b1
JM		 8414static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8415 u8 *rates, u8 rates_len)
8416{
8417 u8 i;
8418 u32 mask = 0;
8419
8420 for (i = 0; i < rates_len; i++) {
8421 int rate = (rates[i] & 0x7f) * 5;
8422 int ridx;
8423 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8424 struct ieee80211_rate *srate =
8425 &sband->bitrates[ridx];
8426 if (rate == srate->bitrate) {
8427 mask |= 1 << ridx;
8428 break;
8429 }
8430 }
8431 if (ridx == sband->n_bitrates)
8432 return 0; /* rate not found */
8433 }
8434
8435 return mask;
8436}
8437
24db78c0
SW		 8438static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8439 u8 *rates, u8 rates_len,
8440 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8441{
8442 u8 i;
8443
8444 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8445
8446 for (i = 0; i < rates_len; i++) {
8447 int ridx, rbit;
8448
8449 ridx = rates[i] / 8;
8450 rbit = BIT(rates[i] % 8);
8451
8452 /* check validity */
910570b5 8453 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8454 return false;
8455
8456 /* check availability */
8457 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8458 mcs[ridx] |= rbit;
8459 else
8460 return false;
8461 }
8462
8463 return true;
8464}
8465
204e35a9
JD		 8466static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8467{
8468 u16 mcs_mask = 0;
8469
8470 switch (vht_mcs_map) {
8471 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8472 break;
8473 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8474 mcs_mask = 0x00FF;
8475 break;
8476 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8477 mcs_mask = 0x01FF;
8478 break;
8479 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8480 mcs_mask = 0x03FF;
8481 break;
8482 default:
8483 break;
8484 }
8485
8486 return mcs_mask;
8487}
8488
8489static void vht_build_mcs_mask(u16 vht_mcs_map,
8490 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8491{
8492 u8 nss;
8493
8494 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8495 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8496 vht_mcs_map >>= 2;
8497 }
8498}
8499
8500static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8501 struct nl80211_txrate_vht *txrate,
8502 u16 mcs[NL80211_VHT_NSS_MAX])
8503{
8504 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8505 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8506 u8 i;
8507
8508 if (!sband->vht_cap.vht_supported)
8509 return false;
8510
8511 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8512
8513 /* Build vht_mcs_mask from VHT capabilities */
8514 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8515
8516 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8517 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8518 mcs[i] = txrate->mcs[i];
8519 else
8520 return false;
8521 }
8522
8523 return true;
8524}
8525
b54452b0 8526static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8527 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8528 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8529 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8530 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8531 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8532 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8533};
8534
8535static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8536 struct genl_info *info)
8537{
8538 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8539 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8540 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8541 int rem, i;
8542 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8543 struct nlattr *tx_rates;
8544 struct ieee80211_supported_band *sband;
204e35a9 8545 u16 vht_tx_mcs_map;
13ae75b1 8546
4c476991
JB		 8547 if (!rdev->ops->set_bitrate_mask)
8548 return -EOPNOTSUPP;
13ae75b1
JM		 8549
8550 memset(&mask, 0, sizeof(mask));
8551 /* Default to all rates enabled */
8552 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8553 sband = rdev->wiphy.bands[i];
7869303b
JD		 8554
8555 if (!sband)
8556 continue;
8557
8558 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8559 memcpy(mask.control[i].ht_mcs,
7869303b 8560 sband->ht_cap.mcs.rx_mask,
d1e33e65 8561 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8562
8563 if (!sband->vht_cap.vht_supported)
8564 continue;
8565
8566 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8567 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8568 }
8569
b9243ab0
JD		 8570 /* if no rates are given set it back to the defaults */
8571 if (!info->attrs[NL80211_ATTR_TX_RATES])
8572 goto out;
8573
13ae75b1
JM		 8574 /*
8575 * The nested attribute uses enum nl80211_band as the index. This maps
8576 * directly to the enum ieee80211_band values used in cfg80211.
8577 */
24db78c0 8578 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8579 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 8580 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 8581 int err;
8582
4c476991
JB		 8583 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8584 return -EINVAL;
13ae75b1 8585 sband = rdev->wiphy.bands[band];
4c476991
JB		 8586 if (sband == NULL)
8587 return -EINVAL;
ae811e21
JB		 8588 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8589 nla_len(tx_rates), nl80211_txattr_policy);
8590 if (err)
8591 return err;
13ae75b1
JM		 8592 if (tb[NL80211_TXRATE_LEGACY]) {
8593 mask.control[band].legacy = rateset_to_mask(
8594 sband,
8595 nla_data(tb[NL80211_TXRATE_LEGACY]),
8596 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8597 if ((mask.control[band].legacy == 0) &&
8598 nla_len(tb[NL80211_TXRATE_LEGACY]))
8599 return -EINVAL;
24db78c0 8600 }
d1e33e65 8601 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8602 if (!ht_rateset_to_mask(
8603 sband,
d1e33e65
JD		 8604 nla_data(tb[NL80211_TXRATE_HT]),
8605 nla_len(tb[NL80211_TXRATE_HT]),
8606 mask.control[band].ht_mcs))
24db78c0
SW		 8607 return -EINVAL;
8608 }
204e35a9
JD		 8609 if (tb[NL80211_TXRATE_VHT]) {
8610 if (!vht_set_mcs_mask(
8611 sband,
8612 nla_data(tb[NL80211_TXRATE_VHT]),
8613 mask.control[band].vht_mcs))
8614 return -EINVAL;
8615 }
0b9323f6
JD		 8616 if (tb[NL80211_TXRATE_GI]) {
8617 mask.control[band].gi =
8618 nla_get_u8(tb[NL80211_TXRATE_GI]);
8619 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8620 return -EINVAL;
8621 }
24db78c0
SW		 8622
8623 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8624 /* don't allow empty legacy rates if HT or VHT
8625 * are not even supported.
8626 */
8627 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8628 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8629 return -EINVAL;
8630
8631 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8632 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8633 goto out;
8634
8635 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8636 if (mask.control[band].vht_mcs[i])
8637 goto out;
24db78c0
SW		 8638
8639 /* legacy and mcs rates may not be both empty */
204e35a9 8640 return -EINVAL;
13ae75b1
JM		 8641 }
8642 }
8643
b9243ab0 8644out:
e35e4d28 8645 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8646}
8647
2e161f78 8648static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8649{
4c476991 8650 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8651 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8652 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8653
8654 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8655 return -EINVAL;
8656
2e161f78
JB		 8657 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8658 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8659
71bbc994
JB		 8660 switch (wdev->iftype) {
8661 case NL80211_IFTYPE_STATION:
8662 case NL80211_IFTYPE_ADHOC:
8663 case NL80211_IFTYPE_P2P_CLIENT:
8664 case NL80211_IFTYPE_AP:
8665 case NL80211_IFTYPE_AP_VLAN:
8666 case NL80211_IFTYPE_MESH_POINT:
8667 case NL80211_IFTYPE_P2P_GO:
98104fde 8668 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8669 break;
8670 default:
4c476991 8671 return -EOPNOTSUPP;
71bbc994 8672 }
026331c4
JM		 8673
8674 /* not much point in registering if we can't reply */
4c476991
JB		 8675 if (!rdev->ops->mgmt_tx)
8676 return -EOPNOTSUPP;
026331c4 8677
15e47304 8678 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8679 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8680 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8681}
8682
2e161f78 8683static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8684{
4c476991 8685 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8686 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8687 struct cfg80211_chan_def chandef;
026331c4 8688 int err;
d64d373f 8689 void *hdr = NULL;
026331c4 8690 u64 cookie;
e247bd90 8691 struct sk_buff *msg = NULL;
b176e629
AO		 8692 struct cfg80211_mgmt_tx_params params = {
8693 .dont_wait_for_ack =
8694 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8695 };
026331c4 8696
683b6d3b 8697 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8698 return -EINVAL;
8699
4c476991
JB		 8700 if (!rdev->ops->mgmt_tx)
8701 return -EOPNOTSUPP;
026331c4 8702
71bbc994 8703 switch (wdev->iftype) {
ea141b75
AQ		 8704 case NL80211_IFTYPE_P2P_DEVICE:
8705 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8706 return -EINVAL;
71bbc994
JB		 8707 case NL80211_IFTYPE_STATION:
8708 case NL80211_IFTYPE_ADHOC:
8709 case NL80211_IFTYPE_P2P_CLIENT:
8710 case NL80211_IFTYPE_AP:
8711 case NL80211_IFTYPE_AP_VLAN:
8712 case NL80211_IFTYPE_MESH_POINT:
8713 case NL80211_IFTYPE_P2P_GO:
8714 break;
8715 default:
4c476991 8716 return -EOPNOTSUPP;
71bbc994 8717 }
026331c4 8718
f7ca38df 8719 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8720 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8721 return -EINVAL;
b176e629 8722 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8723
8724 /*
8725 * We should wait on the channel for at least a minimum amount
8726 * of time (10ms) but no longer than the driver supports.
8727 */
b176e629
AO		 8728 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8729 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8730 return -EINVAL;
8731
f7ca38df
JB		 8732 }
8733
b176e629 8734 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8735
b176e629 8736 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8737 return -EINVAL;
8738
b176e629 8739 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8740
ea141b75
AQ		 8741 /* get the channel if any has been specified, otherwise pass NULL to
8742 * the driver. The latter will use the current one
8743 */
8744 chandef.chan = NULL;
8745 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8746 err = nl80211_parse_chandef(rdev, info, &chandef);
8747 if (err)
8748 return err;
8749 }
8750
b176e629 8751 if (!chandef.chan && params.offchan)
ea141b75 8752 return -EINVAL;
026331c4 8753
34d22ce2
AO		 8754 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8755 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8756
8757 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8758 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8759 int i;
8760
8761 if (len % sizeof(u16))
8762 return -EINVAL;
8763
8764 params.n_csa_offsets = len / sizeof(u16);
8765 params.csa_offsets =
8766 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8767
8768 /* check that all the offsets fit the frame */
8769 for (i = 0; i < params.n_csa_offsets; i++) {
8770 if (params.csa_offsets[i] >= params.len)
8771 return -EINVAL;
8772 }
8773 }
8774
b176e629 8775 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8776 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8777 if (!msg)
8778 return -ENOMEM;
026331c4 8779
15e47304 8780 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8781 NL80211_CMD_FRAME);
cb35fba3
DC		 8782 if (!hdr) {
8783 err = -ENOBUFS;
e247bd90
JB		 8784 goto free_msg;
8785 }
026331c4 8786 }
e247bd90 8787
b176e629
AO		 8788 params.chan = chandef.chan;
8789 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8790 if (err)
8791 goto free_msg;
8792
e247bd90 8793 if (msg) {
9360ffd1
DM		 8794 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8795 goto nla_put_failure;
026331c4 8796
e247bd90
JB		 8797 genlmsg_end(msg, hdr);
8798 return genlmsg_reply(msg, info);
8799 }
8800
8801 return 0;
026331c4
JM		 8802
8803 nla_put_failure:
8804 err = -ENOBUFS;
8805 free_msg:
8806 nlmsg_free(msg);
026331c4
JM		 8807 return err;
8808}
8809
f7ca38df
JB		 8810static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8811{
8812 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8813 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8814 u64 cookie;
8815
8816 if (!info->attrs[NL80211_ATTR_COOKIE])
8817 return -EINVAL;
8818
8819 if (!rdev->ops->mgmt_tx_cancel_wait)
8820 return -EOPNOTSUPP;
8821
71bbc994
JB		 8822 switch (wdev->iftype) {
8823 case NL80211_IFTYPE_STATION:
8824 case NL80211_IFTYPE_ADHOC:
8825 case NL80211_IFTYPE_P2P_CLIENT:
8826 case NL80211_IFTYPE_AP:
8827 case NL80211_IFTYPE_AP_VLAN:
8828 case NL80211_IFTYPE_P2P_GO:
98104fde 8829 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8830 break;
8831 default:
f7ca38df 8832 return -EOPNOTSUPP;
71bbc994 8833 }
f7ca38df
JB		 8834
8835 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8836
e35e4d28 8837 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8838}
8839
ffb9eb3d
KV		 8840static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8841{
4c476991 8842 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8843 struct wireless_dev *wdev;
4c476991 8844 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8845 u8 ps_state;
8846 bool state;
8847 int err;
8848
4c476991
JB		 8849 if (!info->attrs[NL80211_ATTR_PS_STATE])
8850 return -EINVAL;
ffb9eb3d
KV		 8851
8852 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8853
4c476991
JB		 8854 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8855 return -EINVAL;
ffb9eb3d
KV		 8856
8857 wdev = dev->ieee80211_ptr;
8858
4c476991
JB		 8859 if (!rdev->ops->set_power_mgmt)
8860 return -EOPNOTSUPP;
ffb9eb3d
KV		 8861
8862 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8863
8864 if (state == wdev->ps)
4c476991 8865 return 0;
ffb9eb3d 8866
e35e4d28 8867 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8868 if (!err)
8869 wdev->ps = state;
ffb9eb3d
KV		 8870 return err;
8871}
8872
8873static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8874{
4c476991 8875 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8876 enum nl80211_ps_state ps_state;
8877 struct wireless_dev *wdev;
4c476991 8878 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8879 struct sk_buff *msg;
8880 void *hdr;
8881 int err;
8882
ffb9eb3d
KV		 8883 wdev = dev->ieee80211_ptr;
8884
4c476991
JB		 8885 if (!rdev->ops->set_power_mgmt)
8886 return -EOPNOTSUPP;
ffb9eb3d
KV		 8887
8888 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8889 if (!msg)
8890 return -ENOMEM;
ffb9eb3d 8891
15e47304 8892 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8893 NL80211_CMD_GET_POWER_SAVE);
8894 if (!hdr) {
4c476991 8895 err = -ENOBUFS;
ffb9eb3d
KV		 8896 goto free_msg;
8897 }
8898
8899 if (wdev->ps)
8900 ps_state = NL80211_PS_ENABLED;
8901 else
8902 ps_state = NL80211_PS_DISABLED;
8903
9360ffd1
DM		 8904 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8905 goto nla_put_failure;
ffb9eb3d
KV		 8906
8907 genlmsg_end(msg, hdr);
4c476991 8908 return genlmsg_reply(msg, info);
ffb9eb3d 8909
4c476991 8910 nla_put_failure:
ffb9eb3d 8911 err = -ENOBUFS;
4c476991 8912 free_msg:
ffb9eb3d 8913 nlmsg_free(msg);
ffb9eb3d
KV		 8914 return err;
8915}
8916
94e860f1
JB		 8917static const struct nla_policy
8918nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8919 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8920 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8921 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8922 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8923 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8924 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8925};
8926
84f10708 8927static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8928 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8929{
8930 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8931 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8932 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8933
d9d8b019 8934 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8935 return -EINVAL;
8936
84f10708
TP		 8937 if (!rdev->ops->set_cqm_txe_config)
8938 return -EOPNOTSUPP;
8939
8940 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8941 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8942 return -EOPNOTSUPP;
8943
e35e4d28 8944 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8945}
8946
d6dc1a38
JO		 8947static int nl80211_set_cqm_rssi(struct genl_info *info,
8948 s32 threshold, u32 hysteresis)
8949{
4c476991 8950 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8951 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8952 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8953
8954 if (threshold > 0)
8955 return -EINVAL;
8956
1da5fcc8
JB		 8957 /* disabling - hysteresis should also be zero then */
8958 if (threshold == 0)
8959 hysteresis = 0;
d6dc1a38 8960
4c476991
JB		 8961 if (!rdev->ops->set_cqm_rssi_config)
8962 return -EOPNOTSUPP;
d6dc1a38 8963
074ac8df 8964 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8965 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8966 return -EOPNOTSUPP;
d6dc1a38 8967
e35e4d28 8968 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8969}
8970
8971static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8972{
8973 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8974 struct nlattr *cqm;
8975 int err;
8976
8977 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8978 if (!cqm)
8979 return -EINVAL;
d6dc1a38
JO		 8980
8981 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8982 nl80211_attr_cqm_policy);
8983 if (err)
1da5fcc8 8984 return err;
d6dc1a38
JO		 8985
8986 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8987 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8988 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8989 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8990
1da5fcc8
JB		 8991 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8992 }
8993
8994 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8995 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8996 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8997 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8998 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8999 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9000
9001 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9002 }
9003
9004 return -EINVAL;
d6dc1a38
JO		 9005}
9006
6e0bd6c3
RL		 9007static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9008{
9009 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9010 struct net_device *dev = info->user_ptr[1];
9011 struct ocb_setup setup = {};
9012 int err;
9013
9014 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9015 if (err)
9016 return err;
9017
9018 return cfg80211_join_ocb(rdev, dev, &setup);
9019}
9020
9021static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9022{
9023 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9024 struct net_device *dev = info->user_ptr[1];
9025
9026 return cfg80211_leave_ocb(rdev, dev);
9027}
9028
29cbe68c
JB		 9029static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9030{
9031 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9032 struct net_device *dev = info->user_ptr[1];
9033 struct mesh_config cfg;
c80d545d 9034 struct mesh_setup setup;
29cbe68c
JB		 9035 int err;
9036
9037 /* start with default */
9038 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9039 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9040
24bdd9f4 9041 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9042 /* and parse parameters if given */
24bdd9f4 9043 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9044 if (err)
9045 return err;
9046 }
9047
9048 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9049 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9050 return -EINVAL;
9051
c80d545d
JC		 9052 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9053 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9054
4bb62344
CYY		 9055 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9056 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9057 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9058 return -EINVAL;
9059
9bdbf04d
MP		 9060 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9061 setup.beacon_interval =
9062 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
9063 if (setup.beacon_interval < 10 ||
9064 setup.beacon_interval > 10000)
9065 return -EINVAL;
9066 }
9067
9068 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9069 setup.dtim_period =
9070 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9071 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9072 return -EINVAL;
9073 }
9074
c80d545d
JC		 9075 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9076 /* parse additional setup parameters if given */
9077 err = nl80211_parse_mesh_setup(info, &setup);
9078 if (err)
9079 return err;
9080 }
9081
d37bb18a
TP		 9082 if (setup.user_mpm)
9083 cfg.auto_open_plinks = false;
9084
cc1d2806 9085 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 9086 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9087 if (err)
9088 return err;
cc1d2806
JB		 9089 } else {
9090 /* cfg80211_join_mesh() will sort it out */
683b6d3b 9091 setup.chandef.chan = NULL;
cc1d2806
JB		 9092 }
9093
ffb3cf30
AN		 9094 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9095 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9096 int n_rates =
9097 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9098 struct ieee80211_supported_band *sband;
9099
9100 if (!setup.chandef.chan)
9101 return -EINVAL;
9102
9103 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9104
9105 err = ieee80211_get_ratemask(sband, rates, n_rates,
9106 &setup.basic_rates);
9107 if (err)
9108 return err;
9109 }
9110
c80d545d 9111 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 9112}
9113
9114static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9115{
9116 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9117 struct net_device *dev = info->user_ptr[1];
9118
9119 return cfg80211_leave_mesh(rdev, dev);
9120}
9121
dfb89c56 9122#ifdef CONFIG_PM
bb92d199
AK		 9123static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9124 struct cfg80211_registered_device *rdev)
9125{
6abb9cb9 9126 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 9127 struct nlattr *nl_pats, *nl_pat;
9128 int i, pat_len;
9129
6abb9cb9 9130 if (!wowlan->n_patterns)
bb92d199
AK		 9131 return 0;
9132
9133 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9134 if (!nl_pats)
9135 return -ENOBUFS;
9136
6abb9cb9 9137 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 9138 nl_pat = nla_nest_start(msg, i + 1);
9139 if (!nl_pat)
9140 return -ENOBUFS;
6abb9cb9 9141 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 9142 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 9143 wowlan->patterns[i].mask) ||
50ac6607
AK		 9144 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9145 wowlan->patterns[i].pattern) ||
9146 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 9147 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 9148 return -ENOBUFS;
9149 nla_nest_end(msg, nl_pat);
9150 }
9151 nla_nest_end(msg, nl_pats);
9152
9153 return 0;
9154}
9155
2a0e047e
JB		 9156static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9157 struct cfg80211_wowlan_tcp *tcp)
9158{
9159 struct nlattr *nl_tcp;
9160
9161 if (!tcp)
9162 return 0;
9163
9164 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9165 if (!nl_tcp)
9166 return -ENOBUFS;
9167
930345ea
JB		 9168 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9169 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 9170 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9171 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9172 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9173 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9174 tcp->payload_len, tcp->payload) ||
9175 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9176 tcp->data_interval) ||
9177 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9178 tcp->wake_len, tcp->wake_data) ||
9179 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9180 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9181 return -ENOBUFS;
9182
9183 if (tcp->payload_seq.len &&
9184 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9185 sizeof(tcp->payload_seq), &tcp->payload_seq))
9186 return -ENOBUFS;
9187
9188 if (tcp->payload_tok.len &&
9189 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9190 sizeof(tcp->payload_tok) + tcp->tokens_size,
9191 &tcp->payload_tok))
9192 return -ENOBUFS;
9193
e248ad30
JB		 9194 nla_nest_end(msg, nl_tcp);
9195
2a0e047e
JB		 9196 return 0;
9197}
9198
75453ccb
LC		 9199static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9200 struct cfg80211_sched_scan_request *req)
9201{
3b06d277 9202 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 9203 int i;
9204
9205 if (!req)
9206 return 0;
9207
9208 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9209 if (!nd)
9210 return -ENOBUFS;
9211
3b06d277
AS		 9212 if (req->n_scan_plans == 1 &&
9213 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9214 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9215 return -ENOBUFS;
9216
21fea567
LC		 9217 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9218 return -ENOBUFS;
9219
75453ccb
LC		 9220 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9221 if (!freqs)
9222 return -ENOBUFS;
9223
9224 for (i = 0; i < req->n_channels; i++)
9225 nla_put_u32(msg, i, req->channels[i]->center_freq);
9226
9227 nla_nest_end(msg, freqs);
9228
9229 if (req->n_match_sets) {
9230 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9231 for (i = 0; i < req->n_match_sets; i++) {
9232 match = nla_nest_start(msg, i);
9233 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9234 req->match_sets[i].ssid.ssid_len,
9235 req->match_sets[i].ssid.ssid);
9236 nla_nest_end(msg, match);
9237 }
9238 nla_nest_end(msg, matches);
9239 }
9240
3b06d277
AS		 9241 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9242 if (!scan_plans)
9243 return -ENOBUFS;
9244
9245 for (i = 0; i < req->n_scan_plans; i++) {
9246 scan_plan = nla_nest_start(msg, i + 1);
9247 if (!scan_plan ||
9248 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9249 req->scan_plans[i].interval) ||
9250 (req->scan_plans[i].iterations &&
9251 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9252 req->scan_plans[i].iterations)))
9253 return -ENOBUFS;
9254 nla_nest_end(msg, scan_plan);
9255 }
9256 nla_nest_end(msg, scan_plans);
9257
75453ccb
LC		 9258 nla_nest_end(msg, nd);
9259
9260 return 0;
9261}
9262
ff1b6e69
JB		 9263static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9264{
9265 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9266 struct sk_buff *msg;
9267 void *hdr;
2a0e047e 9268 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 9269
964dc9e2 9270 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 9271 return -EOPNOTSUPP;
9272
6abb9cb9 9273 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 9274 /* adjust size to have room for all the data */
6abb9cb9
JB		 9275 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9276 rdev->wiphy.wowlan_config->tcp->payload_len +
9277 rdev->wiphy.wowlan_config->tcp->wake_len +
9278 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 9279 }
9280
9281 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 9282 if (!msg)
9283 return -ENOMEM;
9284
15e47304 9285 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 9286 NL80211_CMD_GET_WOWLAN);
9287 if (!hdr)
9288 goto nla_put_failure;
9289
6abb9cb9 9290 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 9291 struct nlattr *nl_wowlan;
9292
9293 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9294 if (!nl_wowlan)
9295 goto nla_put_failure;
9296
6abb9cb9 9297 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 9298 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 9299 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 9300 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 9301 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 9302 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 9303 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 9304 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 9305 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 9306 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 9307 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 9308 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 9309 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 9310 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9311 goto nla_put_failure;
2a0e047e 9312
bb92d199
AK		 9313 if (nl80211_send_wowlan_patterns(msg, rdev))
9314 goto nla_put_failure;
2a0e047e 9315
6abb9cb9
JB		 9316 if (nl80211_send_wowlan_tcp(msg,
9317 rdev->wiphy.wowlan_config->tcp))
2a0e047e 9318 goto nla_put_failure;
75453ccb
LC		 9319
9320 if (nl80211_send_wowlan_nd(
9321 msg,
9322 rdev->wiphy.wowlan_config->nd_config))
9323 goto nla_put_failure;
2a0e047e 9324
ff1b6e69
JB		 9325 nla_nest_end(msg, nl_wowlan);
9326 }
9327
9328 genlmsg_end(msg, hdr);
9329 return genlmsg_reply(msg, info);
9330
9331nla_put_failure:
9332 nlmsg_free(msg);
9333 return -ENOBUFS;
9334}
9335
2a0e047e
JB		 9336static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9337 struct nlattr *attr,
9338 struct cfg80211_wowlan *trig)
9339{
9340 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9341 struct cfg80211_wowlan_tcp *cfg;
9342 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9343 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9344 u32 size;
9345 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9346 int err, port;
9347
964dc9e2 9348 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 9349 return -EINVAL;
9350
9351 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9352 nla_data(attr), nla_len(attr),
9353 nl80211_wowlan_tcp_policy);
9354 if (err)
9355 return err;
9356
9357 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9358 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9359 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9360 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9361 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9362 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9363 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9364 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9365 return -EINVAL;
9366
9367 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 9368 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 9369 return -EINVAL;
9370
9371 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 9372 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 9373 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 9374 return -EINVAL;
9375
9376 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9377 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9378 return -EINVAL;
9379
9380 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9381 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9382 return -EINVAL;
9383
9384 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9385 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9386
9387 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9388 tokens_size = tokln - sizeof(*tok);
9389
9390 if (!tok->len || tokens_size % tok->len)
9391 return -EINVAL;
964dc9e2 9392 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9393 return -EINVAL;
964dc9e2 9394 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9395 return -EINVAL;
964dc9e2 9396 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9397 return -EINVAL;
964dc9e2 9398 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9399 return -EINVAL;
9400 if (tok->offset + tok->len > data_size)
9401 return -EINVAL;
9402 }
9403
9404 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9405 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9406 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9407 return -EINVAL;
9408 if (seq->len == 0 || seq->len > 4)
9409 return -EINVAL;
9410 if (seq->len + seq->offset > data_size)
9411 return -EINVAL;
9412 }
9413
9414 size = sizeof(*cfg);
9415 size += data_size;
9416 size += wake_size + wake_mask_size;
9417 size += tokens_size;
9418
9419 cfg = kzalloc(size, GFP_KERNEL);
9420 if (!cfg)
9421 return -ENOMEM;
67b61f6c
JB		 9422 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9423 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 9424 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9425 ETH_ALEN);
9426 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9427 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9428 else
9429 port = 0;
9430#ifdef CONFIG_INET
9431 /* allocate a socket and port for it and use it */
9432 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9433 IPPROTO_TCP, &cfg->sock, 1);
9434 if (err) {
9435 kfree(cfg);
9436 return err;
9437 }
9438 if (inet_csk_get_port(cfg->sock->sk, port)) {
9439 sock_release(cfg->sock);
9440 kfree(cfg);
9441 return -EADDRINUSE;
9442 }
9443 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9444#else
9445 if (!port) {
9446 kfree(cfg);
9447 return -EINVAL;
9448 }
9449 cfg->src_port = port;
9450#endif
9451
9452 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9453 cfg->payload_len = data_size;
9454 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9455 memcpy((void *)cfg->payload,
9456 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9457 data_size);
9458 if (seq)
9459 cfg->payload_seq = *seq;
9460 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9461 cfg->wake_len = wake_size;
9462 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9463 memcpy((void *)cfg->wake_data,
9464 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9465 wake_size);
9466 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9467 data_size + wake_size;
9468 memcpy((void *)cfg->wake_mask,
9469 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9470 wake_mask_size);
9471 if (tok) {
9472 cfg->tokens_size = tokens_size;
9473 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9474 }
9475
9476 trig->tcp = cfg;
9477
9478 return 0;
9479}
9480
8cd4d456
LC		 9481static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9482 const struct wiphy_wowlan_support *wowlan,
9483 struct nlattr *attr,
9484 struct cfg80211_wowlan *trig)
9485{
9486 struct nlattr **tb;
9487 int err;
9488
9489 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9490 if (!tb)
9491 return -ENOMEM;
9492
9493 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9494 err = -EOPNOTSUPP;
9495 goto out;
9496 }
9497
9498 err = nla_parse(tb, NL80211_ATTR_MAX,
9499 nla_data(attr), nla_len(attr),
9500 nl80211_policy);
9501 if (err)
9502 goto out;
9503
ad2b26ab 9504 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9505 err = PTR_ERR_OR_ZERO(trig->nd_config);
9506 if (err)
9507 trig->nd_config = NULL;
9508
9509out:
9510 kfree(tb);
9511 return err;
9512}
9513
ff1b6e69
JB		 9514static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9515{
9516 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9517 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9518 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9519 struct cfg80211_wowlan *ntrig;
964dc9e2 9520 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9521 int err, i;
6abb9cb9 9522 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 9523 bool regular = false;
ff1b6e69 9524
964dc9e2 9525 if (!wowlan)
ff1b6e69
JB		 9526 return -EOPNOTSUPP;
9527
ae33bd81
JB		 9528 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9529 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9530 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9531 goto set_wakeup;
9532 }
ff1b6e69
JB		 9533
9534 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9535 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9536 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9537 nl80211_wowlan_policy);
9538 if (err)
9539 return err;
9540
9541 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9542 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9543 return -EINVAL;
9544 new_triggers.any = true;
9545 }
9546
9547 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9548 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9549 return -EINVAL;
9550 new_triggers.disconnect = true;
98fc4386 9551 regular = true;
ff1b6e69
JB		 9552 }
9553
9554 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9555 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9556 return -EINVAL;
9557 new_triggers.magic_pkt = true;
98fc4386 9558 regular = true;
ff1b6e69
JB		 9559 }
9560
77dbbb13
JB		 9561 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9562 return -EINVAL;
9563
9564 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9565 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9566 return -EINVAL;
9567 new_triggers.gtk_rekey_failure = true;
98fc4386 9568 regular = true;
77dbbb13
JB		 9569 }
9570
9571 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9572 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9573 return -EINVAL;
9574 new_triggers.eap_identity_req = true;
98fc4386 9575 regular = true;
77dbbb13
JB		 9576 }
9577
9578 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9579 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9580 return -EINVAL;
9581 new_triggers.four_way_handshake = true;
98fc4386 9582 regular = true;
77dbbb13
JB		 9583 }
9584
9585 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9586 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9587 return -EINVAL;
9588 new_triggers.rfkill_release = true;
98fc4386 9589 regular = true;
77dbbb13
JB		 9590 }
9591
ff1b6e69
JB		 9592 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9593 struct nlattr *pat;
9594 int n_patterns = 0;
bb92d199 9595 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9596 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 9597
98fc4386
JB		 9598 regular = true;
9599
ff1b6e69
JB		 9600 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9601 rem)
9602 n_patterns++;
9603 if (n_patterns > wowlan->n_patterns)
9604 return -EINVAL;
9605
9606 new_triggers.patterns = kcalloc(n_patterns,
9607 sizeof(new_triggers.patterns[0]),
9608 GFP_KERNEL);
9609 if (!new_triggers.patterns)
9610 return -ENOMEM;
9611
9612 new_triggers.n_patterns = n_patterns;
9613 i = 0;
9614
9615 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9616 rem) {
922bd80f
JB		 9617 u8 *mask_pat;
9618
50ac6607
AK		 9619 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9620 nla_len(pat), NULL);
ff1b6e69 9621 err = -EINVAL;
50ac6607
AK		 9622 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9623 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9624 goto error;
50ac6607 9625 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9626 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9627 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9628 goto error;
9629 if (pat_len > wowlan->pattern_max_len ||
9630 pat_len < wowlan->pattern_min_len)
9631 goto error;
9632
50ac6607 9633 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9634 pkt_offset = 0;
9635 else
9636 pkt_offset = nla_get_u32(
50ac6607 9637 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9638 if (pkt_offset > wowlan->max_pkt_offset)
9639 goto error;
9640 new_triggers.patterns[i].pkt_offset = pkt_offset;
9641
922bd80f
JB		 9642 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9643 if (!mask_pat) {
ff1b6e69
JB		 9644 err = -ENOMEM;
9645 goto error;
9646 }
922bd80f
JB		 9647 new_triggers.patterns[i].mask = mask_pat;
9648 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9649 mask_len);
922bd80f
JB		 9650 mask_pat += mask_len;
9651 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9652 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9653 memcpy(mask_pat,
50ac6607 9654 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9655 pat_len);
9656 i++;
9657 }
9658 }
9659
2a0e047e 9660 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 9661 regular = true;
2a0e047e
JB		 9662 err = nl80211_parse_wowlan_tcp(
9663 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9664 &new_triggers);
9665 if (err)
9666 goto error;
9667 }
9668
8cd4d456 9669 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 9670 regular = true;
8cd4d456
LC		 9671 err = nl80211_parse_wowlan_nd(
9672 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9673 &new_triggers);
9674 if (err)
9675 goto error;
9676 }
9677
98fc4386
JB		 9678 /* The 'any' trigger means the device continues operating more or less
9679 * as in its normal operation mode and wakes up the host on most of the
9680 * normal interrupts (like packet RX, ...)
9681 * It therefore makes little sense to combine with the more constrained
9682 * wakeup trigger modes.
9683 */
9684 if (new_triggers.any && regular) {
9685 err = -EINVAL;
9686 goto error;
9687 }
9688
ae33bd81
JB		 9689 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9690 if (!ntrig) {
9691 err = -ENOMEM;
9692 goto error;
ff1b6e69 9693 }
ae33bd81 9694 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9695 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9696
ae33bd81 9697 set_wakeup:
6abb9cb9
JB		 9698 if (rdev->ops->set_wakeup &&
9699 prev_enabled != !!rdev->wiphy.wowlan_config)
9700 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9701
ff1b6e69
JB		 9702 return 0;
9703 error:
9704 for (i = 0; i < new_triggers.n_patterns; i++)
9705 kfree(new_triggers.patterns[i].mask);
9706 kfree(new_triggers.patterns);
2a0e047e
JB		 9707 if (new_triggers.tcp && new_triggers.tcp->sock)
9708 sock_release(new_triggers.tcp->sock);
9709 kfree(new_triggers.tcp);
e5dbe070 9710 kfree(new_triggers.nd_config);
ff1b6e69
JB		 9711 return err;
9712}
dfb89c56 9713#endif
ff1b6e69 9714
be29b99a
AK		 9715static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9716 struct cfg80211_registered_device *rdev)
9717{
9718 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9719 int i, j, pat_len;
9720 struct cfg80211_coalesce_rules *rule;
9721
9722 if (!rdev->coalesce->n_rules)
9723 return 0;
9724
9725 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9726 if (!nl_rules)
9727 return -ENOBUFS;
9728
9729 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9730 nl_rule = nla_nest_start(msg, i + 1);
9731 if (!nl_rule)
9732 return -ENOBUFS;
9733
9734 rule = &rdev->coalesce->rules[i];
9735 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9736 rule->delay))
9737 return -ENOBUFS;
9738
9739 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9740 rule->condition))
9741 return -ENOBUFS;
9742
9743 nl_pats = nla_nest_start(msg,
9744 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9745 if (!nl_pats)
9746 return -ENOBUFS;
9747
9748 for (j = 0; j < rule->n_patterns; j++) {
9749 nl_pat = nla_nest_start(msg, j + 1);
9750 if (!nl_pat)
9751 return -ENOBUFS;
9752 pat_len = rule->patterns[j].pattern_len;
9753 if (nla_put(msg, NL80211_PKTPAT_MASK,
9754 DIV_ROUND_UP(pat_len, 8),
9755 rule->patterns[j].mask) ||
9756 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9757 rule->patterns[j].pattern) ||
9758 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9759 rule->patterns[j].pkt_offset))
9760 return -ENOBUFS;
9761 nla_nest_end(msg, nl_pat);
9762 }
9763 nla_nest_end(msg, nl_pats);
9764 nla_nest_end(msg, nl_rule);
9765 }
9766 nla_nest_end(msg, nl_rules);
9767
9768 return 0;
9769}
9770
9771static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9772{
9773 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9774 struct sk_buff *msg;
9775 void *hdr;
9776
9777 if (!rdev->wiphy.coalesce)
9778 return -EOPNOTSUPP;
9779
9780 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9781 if (!msg)
9782 return -ENOMEM;
9783
9784 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9785 NL80211_CMD_GET_COALESCE);
9786 if (!hdr)
9787 goto nla_put_failure;
9788
9789 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9790 goto nla_put_failure;
9791
9792 genlmsg_end(msg, hdr);
9793 return genlmsg_reply(msg, info);
9794
9795nla_put_failure:
9796 nlmsg_free(msg);
9797 return -ENOBUFS;
9798}
9799
9800void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9801{
9802 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9803 int i, j;
9804 struct cfg80211_coalesce_rules *rule;
9805
9806 if (!coalesce)
9807 return;
9808
9809 for (i = 0; i < coalesce->n_rules; i++) {
9810 rule = &coalesce->rules[i];
9811 for (j = 0; j < rule->n_patterns; j++)
9812 kfree(rule->patterns[j].mask);
9813 kfree(rule->patterns);
9814 }
9815 kfree(coalesce->rules);
9816 kfree(coalesce);
9817 rdev->coalesce = NULL;
9818}
9819
9820static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9821 struct nlattr *rule,
9822 struct cfg80211_coalesce_rules *new_rule)
9823{
9824 int err, i;
9825 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9826 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9827 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9828 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9829
9830 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9831 nla_len(rule), nl80211_coalesce_policy);
9832 if (err)
9833 return err;
9834
9835 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9836 new_rule->delay =
9837 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9838 if (new_rule->delay > coalesce->max_delay)
9839 return -EINVAL;
9840
9841 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9842 new_rule->condition =
9843 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9844 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9845 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9846 return -EINVAL;
9847
9848 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9849 return -EINVAL;
9850
9851 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9852 rem)
9853 n_patterns++;
9854 if (n_patterns > coalesce->n_patterns)
9855 return -EINVAL;
9856
9857 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9858 GFP_KERNEL);
9859 if (!new_rule->patterns)
9860 return -ENOMEM;
9861
9862 new_rule->n_patterns = n_patterns;
9863 i = 0;
9864
9865 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9866 rem) {
922bd80f
JB		 9867 u8 *mask_pat;
9868
be29b99a
AK		 9869 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9870 nla_len(pat), NULL);
9871 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9872 !pat_tb[NL80211_PKTPAT_PATTERN])
9873 return -EINVAL;
9874 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9875 mask_len = DIV_ROUND_UP(pat_len, 8);
9876 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9877 return -EINVAL;
9878 if (pat_len > coalesce->pattern_max_len ||
9879 pat_len < coalesce->pattern_min_len)
9880 return -EINVAL;
9881
9882 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9883 pkt_offset = 0;
9884 else
9885 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9886 if (pkt_offset > coalesce->max_pkt_offset)
9887 return -EINVAL;
9888 new_rule->patterns[i].pkt_offset = pkt_offset;
9889
922bd80f
JB		 9890 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9891 if (!mask_pat)
be29b99a 9892 return -ENOMEM;
922bd80f
JB		 9893
9894 new_rule->patterns[i].mask = mask_pat;
9895 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9896 mask_len);
9897
9898 mask_pat += mask_len;
9899 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9900 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9901 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9902 pat_len);
be29b99a
AK		 9903 i++;
9904 }
9905
9906 return 0;
9907}
9908
9909static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9910{
9911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9912 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9913 struct cfg80211_coalesce new_coalesce = {};
9914 struct cfg80211_coalesce *n_coalesce;
9915 int err, rem_rule, n_rules = 0, i, j;
9916 struct nlattr *rule;
9917 struct cfg80211_coalesce_rules *tmp_rule;
9918
9919 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9920 return -EOPNOTSUPP;
9921
9922 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9923 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 9924 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 9925 return 0;
9926 }
9927
9928 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9929 rem_rule)
9930 n_rules++;
9931 if (n_rules > coalesce->n_rules)
9932 return -EINVAL;
9933
9934 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9935 GFP_KERNEL);
9936 if (!new_coalesce.rules)
9937 return -ENOMEM;
9938
9939 new_coalesce.n_rules = n_rules;
9940 i = 0;
9941
9942 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9943 rem_rule) {
9944 err = nl80211_parse_coalesce_rule(rdev, rule,
9945 &new_coalesce.rules[i]);
9946 if (err)
9947 goto error;
9948
9949 i++;
9950 }
9951
a1056b1b 9952 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 9953 if (err)
9954 goto error;
9955
9956 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9957 if (!n_coalesce) {
9958 err = -ENOMEM;
9959 goto error;
9960 }
9961 cfg80211_rdev_free_coalesce(rdev);
9962 rdev->coalesce = n_coalesce;
9963
9964 return 0;
9965error:
9966 for (i = 0; i < new_coalesce.n_rules; i++) {
9967 tmp_rule = &new_coalesce.rules[i];
9968 for (j = 0; j < tmp_rule->n_patterns; j++)
9969 kfree(tmp_rule->patterns[j].mask);
9970 kfree(tmp_rule->patterns);
9971 }
9972 kfree(new_coalesce.rules);
9973
9974 return err;
9975}
9976
e5497d76
JB		 9977static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9978{
9979 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9980 struct net_device *dev = info->user_ptr[1];
9981 struct wireless_dev *wdev = dev->ieee80211_ptr;
9982 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9983 struct cfg80211_gtk_rekey_data rekey_data;
9984 int err;
9985
9986 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9987 return -EINVAL;
9988
9989 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9990 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9991 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9992 nl80211_rekey_policy);
9993 if (err)
9994 return err;
9995
9996 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9997 return -ERANGE;
9998 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9999 return -ERANGE;
10000 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10001 return -ERANGE;
10002
78f686ca
JB		 10003 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10004 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10005 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 10006
10007 wdev_lock(wdev);
10008 if (!wdev->current_bss) {
10009 err = -ENOTCONN;
10010 goto out;
10011 }
10012
10013 if (!rdev->ops->set_rekey_data) {
10014 err = -EOPNOTSUPP;
10015 goto out;
10016 }
10017
e35e4d28 10018 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 10019 out:
10020 wdev_unlock(wdev);
10021 return err;
10022}
10023
28946da7
JB		 10024static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10025 struct genl_info *info)
10026{
10027 struct net_device *dev = info->user_ptr[1];
10028 struct wireless_dev *wdev = dev->ieee80211_ptr;
10029
10030 if (wdev->iftype != NL80211_IFTYPE_AP &&
10031 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10032 return -EINVAL;
10033
15e47304 10034 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 10035 return -EBUSY;
10036
15e47304 10037 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 10038 return 0;
10039}
10040
7f6cf311
JB		 10041static int nl80211_probe_client(struct sk_buff *skb,
10042 struct genl_info *info)
10043{
10044 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10045 struct net_device *dev = info->user_ptr[1];
10046 struct wireless_dev *wdev = dev->ieee80211_ptr;
10047 struct sk_buff *msg;
10048 void *hdr;
10049 const u8 *addr;
10050 u64 cookie;
10051 int err;
10052
10053 if (wdev->iftype != NL80211_IFTYPE_AP &&
10054 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10055 return -EOPNOTSUPP;
10056
10057 if (!info->attrs[NL80211_ATTR_MAC])
10058 return -EINVAL;
10059
10060 if (!rdev->ops->probe_client)
10061 return -EOPNOTSUPP;
10062
10063 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10064 if (!msg)
10065 return -ENOMEM;
10066
15e47304 10067 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 10068 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 10069 if (!hdr) {
10070 err = -ENOBUFS;
7f6cf311
JB		 10071 goto free_msg;
10072 }
10073
10074 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10075
e35e4d28 10076 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 10077 if (err)
10078 goto free_msg;
10079
9360ffd1
DM		 10080 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10081 goto nla_put_failure;
7f6cf311
JB		 10082
10083 genlmsg_end(msg, hdr);
10084
10085 return genlmsg_reply(msg, info);
10086
10087 nla_put_failure:
10088 err = -ENOBUFS;
10089 free_msg:
10090 nlmsg_free(msg);
10091 return err;
10092}
10093
5e760230
JB		 10094static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10095{
10096 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 10097 struct cfg80211_beacon_registration *reg, *nreg;
10098 int rv;
5e760230
JB		 10099
10100 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10101 return -EOPNOTSUPP;
10102
37c73b5f
BG		 10103 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10104 if (!nreg)
10105 return -ENOMEM;
10106
10107 /* First, check if already registered. */
10108 spin_lock_bh(&rdev->beacon_registrations_lock);
10109 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10110 if (reg->nlportid == info->snd_portid) {
10111 rv = -EALREADY;
10112 goto out_err;
10113 }
10114 }
10115 /* Add it to the list */
10116 nreg->nlportid = info->snd_portid;
10117 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 10118
37c73b5f 10119 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10120
10121 return 0;
37c73b5f
BG		 10122out_err:
10123 spin_unlock_bh(&rdev->beacon_registrations_lock);
10124 kfree(nreg);
10125 return rv;
5e760230
JB		 10126}
10127
98104fde
JB		 10128static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10129{
10130 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10131 struct wireless_dev *wdev = info->user_ptr[1];
10132 int err;
10133
10134 if (!rdev->ops->start_p2p_device)
10135 return -EOPNOTSUPP;
10136
10137 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10138 return -EOPNOTSUPP;
10139
10140 if (wdev->p2p_started)
10141 return 0;
10142
b6a55015
LC		 10143 if (rfkill_blocked(rdev->rfkill))
10144 return -ERFKILL;
98104fde 10145
eeb126e9 10146 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 10147 if (err)
10148 return err;
10149
10150 wdev->p2p_started = true;
98104fde 10151 rdev->opencount++;
98104fde
JB		 10152
10153 return 0;
10154}
10155
10156static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10157{
10158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10159 struct wireless_dev *wdev = info->user_ptr[1];
10160
10161 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10162 return -EOPNOTSUPP;
10163
10164 if (!rdev->ops->stop_p2p_device)
10165 return -EOPNOTSUPP;
10166
f9f47529 10167 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 10168
10169 return 0;
10170}
10171
3713b4e3
JB		 10172static int nl80211_get_protocol_features(struct sk_buff *skb,
10173 struct genl_info *info)
10174{
10175 void *hdr;
10176 struct sk_buff *msg;
10177
10178 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10179 if (!msg)
10180 return -ENOMEM;
10181
10182 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10183 NL80211_CMD_GET_PROTOCOL_FEATURES);
10184 if (!hdr)
10185 goto nla_put_failure;
10186
10187 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
10188 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
10189 goto nla_put_failure;
10190
10191 genlmsg_end(msg, hdr);
10192 return genlmsg_reply(msg, info);
10193
10194 nla_put_failure:
10195 kfree_skb(msg);
10196 return -ENOBUFS;
10197}
10198
355199e0
JM		 10199static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
10200{
10201 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10202 struct cfg80211_update_ft_ies_params ft_params;
10203 struct net_device *dev = info->user_ptr[1];
10204
10205 if (!rdev->ops->update_ft_ies)
10206 return -EOPNOTSUPP;
10207
10208 if (!info->attrs[NL80211_ATTR_MDID] ||
10209 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
10210 return -EINVAL;
10211
10212 memset(&ft_params, 0, sizeof(ft_params));
10213 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10214 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10215 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10216
10217 return rdev_update_ft_ies(rdev, dev, &ft_params);
10218}
10219
5de17984
AS		 10220static int nl80211_crit_protocol_start(struct sk_buff *skb,
10221 struct genl_info *info)
10222{
10223 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10224 struct wireless_dev *wdev = info->user_ptr[1];
10225 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10226 u16 duration;
10227 int ret;
10228
10229 if (!rdev->ops->crit_proto_start)
10230 return -EOPNOTSUPP;
10231
10232 if (WARN_ON(!rdev->ops->crit_proto_stop))
10233 return -EINVAL;
10234
10235 if (rdev->crit_proto_nlportid)
10236 return -EBUSY;
10237
10238 /* determine protocol if provided */
10239 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10240 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10241
10242 if (proto >= NUM_NL80211_CRIT_PROTO)
10243 return -EINVAL;
10244
10245 /* timeout must be provided */
10246 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10247 return -EINVAL;
10248
10249 duration =
10250 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10251
10252 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10253 return -ERANGE;
10254
10255 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10256 if (!ret)
10257 rdev->crit_proto_nlportid = info->snd_portid;
10258
10259 return ret;
10260}
10261
10262static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10263 struct genl_info *info)
10264{
10265 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10266 struct wireless_dev *wdev = info->user_ptr[1];
10267
10268 if (!rdev->ops->crit_proto_stop)
10269 return -EOPNOTSUPP;
10270
10271 if (rdev->crit_proto_nlportid) {
10272 rdev->crit_proto_nlportid = 0;
10273 rdev_crit_proto_stop(rdev, wdev);
10274 }
10275 return 0;
10276}
10277
ad7e718c
JB		 10278static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10279{
10280 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10281 struct wireless_dev *wdev =
10282 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10283 int i, err;
10284 u32 vid, subcmd;
10285
10286 if (!rdev->wiphy.vendor_commands)
10287 return -EOPNOTSUPP;
10288
10289 if (IS_ERR(wdev)) {
10290 err = PTR_ERR(wdev);
10291 if (err != -EINVAL)
10292 return err;
10293 wdev = NULL;
10294 } else if (wdev->wiphy != &rdev->wiphy) {
10295 return -EINVAL;
10296 }
10297
10298 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10299 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10300 return -EINVAL;
10301
10302 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10303 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10304 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10305 const struct wiphy_vendor_command *vcmd;
10306 void *data = NULL;
10307 int len = 0;
10308
10309 vcmd = &rdev->wiphy.vendor_commands[i];
10310
10311 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10312 continue;
10313
10314 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10315 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10316 if (!wdev)
10317 return -EINVAL;
10318 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10319 !wdev->netdev)
10320 return -EINVAL;
10321
10322 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10323 if (wdev->netdev &&
10324 !netif_running(wdev->netdev))
10325 return -ENETDOWN;
10326 if (!wdev->netdev && !wdev->p2p_started)
10327 return -ENETDOWN;
10328 }
7bdbe400
JB		 10329
10330 if (!vcmd->doit)
10331 return -EOPNOTSUPP;
ad7e718c
JB		 10332 } else {
10333 wdev = NULL;
10334 }
10335
10336 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10337 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10338 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10339 }
10340
10341 rdev->cur_cmd_info = info;
10342 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10343 data, len);
10344 rdev->cur_cmd_info = NULL;
10345 return err;
10346 }
10347
10348 return -EOPNOTSUPP;
10349}
10350
7bdbe400
JB		 10351static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10352 struct netlink_callback *cb,
10353 struct cfg80211_registered_device **rdev,
10354 struct wireless_dev **wdev)
10355{
10356 u32 vid, subcmd;
10357 unsigned int i;
10358 int vcmd_idx = -1;
10359 int err;
10360 void *data = NULL;
10361 unsigned int data_len = 0;
10362
10363 rtnl_lock();
10364
10365 if (cb->args[0]) {
10366 /* subtract the 1 again here */
10367 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10368 struct wireless_dev *tmp;
10369
10370 if (!wiphy) {
10371 err = -ENODEV;
10372 goto out_unlock;
10373 }
10374 *rdev = wiphy_to_rdev(wiphy);
10375 *wdev = NULL;
10376
10377 if (cb->args[1]) {
10378 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
10379 if (tmp->identifier == cb->args[1] - 1) {
10380 *wdev = tmp;
10381 break;
10382 }
10383 }
10384 }
10385
10386 /* keep rtnl locked in successful case */
10387 return 0;
10388 }
10389
10390 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10391 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10392 nl80211_policy);
10393 if (err)
10394 goto out_unlock;
10395
10396 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10397 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10398 err = -EINVAL;
10399 goto out_unlock;
10400 }
10401
10402 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10403 nl80211_fam.attrbuf);
10404 if (IS_ERR(*wdev))
10405 *wdev = NULL;
10406
10407 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10408 nl80211_fam.attrbuf);
10409 if (IS_ERR(*rdev)) {
10410 err = PTR_ERR(*rdev);
10411 goto out_unlock;
10412 }
10413
10414 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10415 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10416
10417 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10418 const struct wiphy_vendor_command *vcmd;
10419
10420 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10421
10422 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10423 continue;
10424
10425 if (!vcmd->dumpit) {
10426 err = -EOPNOTSUPP;
10427 goto out_unlock;
10428 }
10429
10430 vcmd_idx = i;
10431 break;
10432 }
10433
10434 if (vcmd_idx < 0) {
10435 err = -EOPNOTSUPP;
10436 goto out_unlock;
10437 }
10438
10439 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10440 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10441 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10442 }
10443
10444 /* 0 is the first index - add 1 to parse only once */
10445 cb->args[0] = (*rdev)->wiphy_idx + 1;
10446 /* add 1 to know if it was NULL */
10447 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10448 cb->args[2] = vcmd_idx;
10449 cb->args[3] = (unsigned long)data;
10450 cb->args[4] = data_len;
10451
10452 /* keep rtnl locked in successful case */
10453 return 0;
10454 out_unlock:
10455 rtnl_unlock();
10456 return err;
10457}
10458
10459static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10460 struct netlink_callback *cb)
10461{
10462 struct cfg80211_registered_device *rdev;
10463 struct wireless_dev *wdev;
10464 unsigned int vcmd_idx;
10465 const struct wiphy_vendor_command *vcmd;
10466 void *data;
10467 int data_len;
10468 int err;
10469 struct nlattr *vendor_data;
10470
10471 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10472 if (err)
10473 return err;
10474
10475 vcmd_idx = cb->args[2];
10476 data = (void *)cb->args[3];
10477 data_len = cb->args[4];
10478 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10479
10480 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10481 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10482 if (!wdev)
10483 return -EINVAL;
10484 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10485 !wdev->netdev)
10486 return -EINVAL;
10487
10488 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10489 if (wdev->netdev &&
10490 !netif_running(wdev->netdev))
10491 return -ENETDOWN;
10492 if (!wdev->netdev && !wdev->p2p_started)
10493 return -ENETDOWN;
10494 }
10495 }
10496
10497 while (1) {
10498 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10499 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10500 NL80211_CMD_VENDOR);
10501 if (!hdr)
10502 break;
10503
10504 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10505 (wdev && nla_put_u64(skb, NL80211_ATTR_WDEV,
10506 wdev_id(wdev)))) {
10507 genlmsg_cancel(skb, hdr);
10508 break;
10509 }
10510
10511 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10512 if (!vendor_data) {
10513 genlmsg_cancel(skb, hdr);
10514 break;
10515 }
10516
10517 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10518 (unsigned long *)&cb->args[5]);
10519 nla_nest_end(skb, vendor_data);
10520
10521 if (err == -ENOBUFS || err == -ENOENT) {
10522 genlmsg_cancel(skb, hdr);
10523 break;
10524 } else if (err) {
10525 genlmsg_cancel(skb, hdr);
10526 goto out;
10527 }
10528
10529 genlmsg_end(skb, hdr);
10530 }
10531
10532 err = skb->len;
10533 out:
10534 rtnl_unlock();
10535 return err;
10536}
10537
ad7e718c
JB		 10538struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10539 enum nl80211_commands cmd,
10540 enum nl80211_attrs attr,
10541 int approxlen)
10542{
f26cbf40 10543 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 10544
10545 if (WARN_ON(!rdev->cur_cmd_info))
10546 return NULL;
10547
6c09e791 10548 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 10549 rdev->cur_cmd_info->snd_portid,
10550 rdev->cur_cmd_info->snd_seq,
567ffc35 10551 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 10552}
10553EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10554
10555int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10556{
10557 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10558 void *hdr = ((void **)skb->cb)[1];
10559 struct nlattr *data = ((void **)skb->cb)[2];
10560
bd8c78e7
JB		 10561 /* clear CB data for netlink core to own from now on */
10562 memset(skb->cb, 0, sizeof(skb->cb));
10563
ad7e718c
JB		 10564 if (WARN_ON(!rdev->cur_cmd_info)) {
10565 kfree_skb(skb);
10566 return -EINVAL;
10567 }
10568
10569 nla_nest_end(skb, data);
10570 genlmsg_end(skb, hdr);
10571 return genlmsg_reply(skb, rdev->cur_cmd_info);
10572}
10573EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10574
10575
fa9ffc74
KP		 10576static int nl80211_set_qos_map(struct sk_buff *skb,
10577 struct genl_info *info)
10578{
10579 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10580 struct cfg80211_qos_map *qos_map = NULL;
10581 struct net_device *dev = info->user_ptr[1];
10582 u8 *pos, len, num_des, des_len, des;
10583 int ret;
10584
10585 if (!rdev->ops->set_qos_map)
10586 return -EOPNOTSUPP;
10587
10588 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10589 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10590 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10591
10592 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10593 len > IEEE80211_QOS_MAP_LEN_MAX)
10594 return -EINVAL;
10595
10596 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10597 if (!qos_map)
10598 return -ENOMEM;
10599
10600 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10601 if (num_des) {
10602 des_len = num_des *
10603 sizeof(struct cfg80211_dscp_exception);
10604 memcpy(qos_map->dscp_exception, pos, des_len);
10605 qos_map->num_des = num_des;
10606 for (des = 0; des < num_des; des++) {
10607 if (qos_map->dscp_exception[des].up > 7) {
10608 kfree(qos_map);
10609 return -EINVAL;
10610 }
10611 }
10612 pos += des_len;
10613 }
10614 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10615 }
10616
10617 wdev_lock(dev->ieee80211_ptr);
10618 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10619 if (!ret)
10620 ret = rdev_set_qos_map(rdev, dev, qos_map);
10621 wdev_unlock(dev->ieee80211_ptr);
10622
10623 kfree(qos_map);
10624 return ret;
10625}
10626
960d01ac
JB		 10627static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10628{
10629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10630 struct net_device *dev = info->user_ptr[1];
10631 struct wireless_dev *wdev = dev->ieee80211_ptr;
10632 const u8 *peer;
10633 u8 tsid, up;
10634 u16 admitted_time = 0;
10635 int err;
10636
723e73ac 10637 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 10638 return -EOPNOTSUPP;
10639
10640 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10641 !info->attrs[NL80211_ATTR_USER_PRIO])
10642 return -EINVAL;
10643
10644 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10645 if (tsid >= IEEE80211_NUM_TIDS)
10646 return -EINVAL;
10647
10648 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10649 if (up >= IEEE80211_NUM_UPS)
10650 return -EINVAL;
10651
10652 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 10653 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 10654 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 10655 * need more attributes for that (e.g. BA session requirement);
10656 * change the WMM adminssion test above to allow both then
960d01ac
JB		 10657 */
10658 return -EINVAL;
10659 }
10660
10661 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10662
10663 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10664 admitted_time =
10665 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10666 if (!admitted_time)
10667 return -EINVAL;
10668 }
10669
10670 wdev_lock(wdev);
10671 switch (wdev->iftype) {
10672 case NL80211_IFTYPE_STATION:
10673 case NL80211_IFTYPE_P2P_CLIENT:
10674 if (wdev->current_bss)
10675 break;
10676 err = -ENOTCONN;
10677 goto out;
10678 default:
10679 err = -EOPNOTSUPP;
10680 goto out;
10681 }
10682
10683 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10684
10685 out:
10686 wdev_unlock(wdev);
10687 return err;
10688}
10689
10690static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10691{
10692 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10693 struct net_device *dev = info->user_ptr[1];
10694 struct wireless_dev *wdev = dev->ieee80211_ptr;
10695 const u8 *peer;
10696 u8 tsid;
10697 int err;
10698
10699 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10700 return -EINVAL;
10701
10702 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10703 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10704
10705 wdev_lock(wdev);
10706 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10707 wdev_unlock(wdev);
10708
10709 return err;
10710}
10711
1057d35e
AN		 10712static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10713 struct genl_info *info)
10714{
10715 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10716 struct net_device *dev = info->user_ptr[1];
10717 struct wireless_dev *wdev = dev->ieee80211_ptr;
10718 struct cfg80211_chan_def chandef = {};
10719 const u8 *addr;
10720 u8 oper_class;
10721 int err;
10722
10723 if (!rdev->ops->tdls_channel_switch ||
10724 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10725 return -EOPNOTSUPP;
10726
10727 switch (dev->ieee80211_ptr->iftype) {
10728 case NL80211_IFTYPE_STATION:
10729 case NL80211_IFTYPE_P2P_CLIENT:
10730 break;
10731 default:
10732 return -EOPNOTSUPP;
10733 }
10734
10735 if (!info->attrs[NL80211_ATTR_MAC] ||
10736 !info->attrs[NL80211_ATTR_OPER_CLASS])
10737 return -EINVAL;
10738
10739 err = nl80211_parse_chandef(rdev, info, &chandef);
10740 if (err)
10741 return err;
10742
10743 /*
10744 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10745 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10746 * specification is not defined for them.
10747 */
10748 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10749 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10750 chandef.width != NL80211_CHAN_WIDTH_20)
10751 return -EINVAL;
10752
10753 /* we will be active on the TDLS link */
923b352f
AN		 10754 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10755 wdev->iftype))
1057d35e
AN		 10756 return -EINVAL;
10757
10758 /* don't allow switching to DFS channels */
10759 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10760 return -EINVAL;
10761
10762 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10763 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10764
10765 wdev_lock(wdev);
10766 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10767 wdev_unlock(wdev);
10768
10769 return err;
10770}
10771
10772static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10773 struct genl_info *info)
10774{
10775 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10776 struct net_device *dev = info->user_ptr[1];
10777 struct wireless_dev *wdev = dev->ieee80211_ptr;
10778 const u8 *addr;
10779
10780 if (!rdev->ops->tdls_channel_switch ||
10781 !rdev->ops->tdls_cancel_channel_switch ||
10782 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10783 return -EOPNOTSUPP;
10784
10785 switch (dev->ieee80211_ptr->iftype) {
10786 case NL80211_IFTYPE_STATION:
10787 case NL80211_IFTYPE_P2P_CLIENT:
10788 break;
10789 default:
10790 return -EOPNOTSUPP;
10791 }
10792
10793 if (!info->attrs[NL80211_ATTR_MAC])
10794 return -EINVAL;
10795
10796 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10797
10798 wdev_lock(wdev);
10799 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10800 wdev_unlock(wdev);
10801
10802 return 0;
10803}
10804
4c476991
JB		 10805#define NL80211_FLAG_NEED_WIPHY 0x01
10806#define NL80211_FLAG_NEED_NETDEV 0x02
10807#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10808#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10809#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10810 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10811#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10812/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10813#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10814 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10815#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10816
f84f771d 10817static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10818 struct genl_info *info)
10819{
10820 struct cfg80211_registered_device *rdev;
89a54e48 10821 struct wireless_dev *wdev;
4c476991 10822 struct net_device *dev;
4c476991
JB		 10823 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10824
10825 if (rtnl)
10826 rtnl_lock();
10827
10828 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10829 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10830 if (IS_ERR(rdev)) {
10831 if (rtnl)
10832 rtnl_unlock();
10833 return PTR_ERR(rdev);
10834 }
10835 info->user_ptr[0] = rdev;
1bf614ef
JB		 10836 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10837 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 10838 ASSERT_RTNL();
10839
89a54e48
JB		 10840 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10841 info->attrs);
10842 if (IS_ERR(wdev)) {
4c476991
JB		 10843 if (rtnl)
10844 rtnl_unlock();
89a54e48 10845 return PTR_ERR(wdev);
4c476991 10846 }
89a54e48 10847
89a54e48 10848 dev = wdev->netdev;
f26cbf40 10849 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 10850
1bf614ef
JB		 10851 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10852 if (!dev) {
1bf614ef
JB		 10853 if (rtnl)
10854 rtnl_unlock();
10855 return -EINVAL;
10856 }
10857
10858 info->user_ptr[1] = dev;
10859 } else {
10860 info->user_ptr[1] = wdev;
41265714 10861 }
1bf614ef
JB		 10862
10863 if (dev) {
10864 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10865 !netif_running(dev)) {
1bf614ef
JB		 10866 if (rtnl)
10867 rtnl_unlock();
10868 return -ENETDOWN;
10869 }
10870
10871 dev_hold(dev);
98104fde
JB		 10872 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10873 if (!wdev->p2p_started) {
98104fde
JB		 10874 if (rtnl)
10875 rtnl_unlock();
10876 return -ENETDOWN;
10877 }
41265714 10878 }
89a54e48 10879
4c476991 10880 info->user_ptr[0] = rdev;
4c476991
JB		 10881 }
10882
10883 return 0;
10884}
10885
f84f771d 10886static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10887 struct genl_info *info)
10888{
1bf614ef
JB		 10889 if (info->user_ptr[1]) {
10890 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10891 struct wireless_dev *wdev = info->user_ptr[1];
10892
10893 if (wdev->netdev)
10894 dev_put(wdev->netdev);
10895 } else {
10896 dev_put(info->user_ptr[1]);
10897 }
10898 }
5393b917 10899
4c476991
JB		 10900 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10901 rtnl_unlock();
5393b917
JB		 10902
10903 /* If needed, clear the netlink message payload from the SKB
10904 * as it might contain key data that shouldn't stick around on
10905 * the heap after the SKB is freed. The netlink message header
10906 * is still needed for further processing, so leave it intact.
10907 */
10908 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10909 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10910
10911 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10912 }
4c476991
JB		 10913}
10914
4534de83 10915static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10916 {
10917 .cmd = NL80211_CMD_GET_WIPHY,
10918 .doit = nl80211_get_wiphy,
10919 .dumpit = nl80211_dump_wiphy,
86e8cf98 10920 .done = nl80211_dump_wiphy_done,
55682965
JB		 10921 .policy = nl80211_policy,
10922 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10923 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10924 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10925 },
10926 {
10927 .cmd = NL80211_CMD_SET_WIPHY,
10928 .doit = nl80211_set_wiphy,
10929 .policy = nl80211_policy,
10930 .flags = GENL_ADMIN_PERM,
4c476991 10931 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10932 },
10933 {
10934 .cmd = NL80211_CMD_GET_INTERFACE,
10935 .doit = nl80211_get_interface,
10936 .dumpit = nl80211_dump_interface,
10937 .policy = nl80211_policy,
10938 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10939 .internal_flags = NL80211_FLAG_NEED_WDEV |
10940 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10941 },
10942 {
10943 .cmd = NL80211_CMD_SET_INTERFACE,
10944 .doit = nl80211_set_interface,
10945 .policy = nl80211_policy,
10946 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10947 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10948 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10949 },
10950 {
10951 .cmd = NL80211_CMD_NEW_INTERFACE,
10952 .doit = nl80211_new_interface,
10953 .policy = nl80211_policy,
10954 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10955 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10956 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10957 },
10958 {
10959 .cmd = NL80211_CMD_DEL_INTERFACE,
10960 .doit = nl80211_del_interface,
10961 .policy = nl80211_policy,
41ade00f 10962 .flags = GENL_ADMIN_PERM,
84efbb84 10963 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10964 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10965 },
10966 {
10967 .cmd = NL80211_CMD_GET_KEY,
10968 .doit = nl80211_get_key,
10969 .policy = nl80211_policy,
10970 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10971 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10972 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10973 },
10974 {
10975 .cmd = NL80211_CMD_SET_KEY,
10976 .doit = nl80211_set_key,
10977 .policy = nl80211_policy,
10978 .flags = GENL_ADMIN_PERM,
41265714 10979 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10980 NL80211_FLAG_NEED_RTNL |
10981 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10982 },
10983 {
10984 .cmd = NL80211_CMD_NEW_KEY,
10985 .doit = nl80211_new_key,
10986 .policy = nl80211_policy,
10987 .flags = GENL_ADMIN_PERM,
41265714 10988 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10989 NL80211_FLAG_NEED_RTNL |
10990 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10991 },
10992 {
10993 .cmd = NL80211_CMD_DEL_KEY,
10994 .doit = nl80211_del_key,
10995 .policy = nl80211_policy,
55682965 10996 .flags = GENL_ADMIN_PERM,
41265714 10997 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10998 NL80211_FLAG_NEED_RTNL,
55682965 10999 },
ed1b6cc7
JB		 11000 {
11001 .cmd = NL80211_CMD_SET_BEACON,
11002 .policy = nl80211_policy,
11003 .flags = GENL_ADMIN_PERM,
8860020e 11004 .doit = nl80211_set_beacon,
2b5f8b0b 11005 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11006 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11007 },
11008 {
8860020e 11009 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 11010 .policy = nl80211_policy,
11011 .flags = GENL_ADMIN_PERM,
8860020e 11012 .doit = nl80211_start_ap,
2b5f8b0b 11013 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11014 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11015 },
11016 {
8860020e 11017 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 11018 .policy = nl80211_policy,
11019 .flags = GENL_ADMIN_PERM,
8860020e 11020 .doit = nl80211_stop_ap,
2b5f8b0b 11021 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11022 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 11023 },
5727ef1b
JB		 11024 {
11025 .cmd = NL80211_CMD_GET_STATION,
11026 .doit = nl80211_get_station,
2ec600d6 11027 .dumpit = nl80211_dump_station,
5727ef1b 11028 .policy = nl80211_policy,
4c476991
JB		 11029 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11030 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11031 },
11032 {
11033 .cmd = NL80211_CMD_SET_STATION,
11034 .doit = nl80211_set_station,
11035 .policy = nl80211_policy,
11036 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11037 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11038 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11039 },
11040 {
11041 .cmd = NL80211_CMD_NEW_STATION,
11042 .doit = nl80211_new_station,
11043 .policy = nl80211_policy,
11044 .flags = GENL_ADMIN_PERM,
41265714 11045 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11046 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11047 },
11048 {
11049 .cmd = NL80211_CMD_DEL_STATION,
11050 .doit = nl80211_del_station,
11051 .policy = nl80211_policy,
2ec600d6 11052 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11053 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11054 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11055 },
11056 {
11057 .cmd = NL80211_CMD_GET_MPATH,
11058 .doit = nl80211_get_mpath,
11059 .dumpit = nl80211_dump_mpath,
11060 .policy = nl80211_policy,
11061 .flags = GENL_ADMIN_PERM,
41265714 11062 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11063 NL80211_FLAG_NEED_RTNL,
2ec600d6 11064 },
66be7d2b
HR		 11065 {
11066 .cmd = NL80211_CMD_GET_MPP,
11067 .doit = nl80211_get_mpp,
11068 .dumpit = nl80211_dump_mpp,
11069 .policy = nl80211_policy,
11070 .flags = GENL_ADMIN_PERM,
11071 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11072 NL80211_FLAG_NEED_RTNL,
11073 },
2ec600d6
LCC		 11074 {
11075 .cmd = NL80211_CMD_SET_MPATH,
11076 .doit = nl80211_set_mpath,
11077 .policy = nl80211_policy,
11078 .flags = GENL_ADMIN_PERM,
41265714 11079 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11080 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11081 },
11082 {
11083 .cmd = NL80211_CMD_NEW_MPATH,
11084 .doit = nl80211_new_mpath,
11085 .policy = nl80211_policy,
11086 .flags = GENL_ADMIN_PERM,
41265714 11087 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11088 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11089 },
11090 {
11091 .cmd = NL80211_CMD_DEL_MPATH,
11092 .doit = nl80211_del_mpath,
11093 .policy = nl80211_policy,
9f1ba906 11094 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11095 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11096 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 11097 },
11098 {
11099 .cmd = NL80211_CMD_SET_BSS,
11100 .doit = nl80211_set_bss,
11101 .policy = nl80211_policy,
b2e1b302 11102 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11103 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11104 NL80211_FLAG_NEED_RTNL,
b2e1b302 11105 },
f130347c
LR		 11106 {
11107 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 11108 .doit = nl80211_get_reg_do,
11109 .dumpit = nl80211_get_reg_dump,
f130347c 11110 .policy = nl80211_policy,
5fe231e8 11111 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 11112 /* can be retrieved by unprivileged users */
11113 },
b6863036 11114#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 11115 {
11116 .cmd = NL80211_CMD_SET_REG,
11117 .doit = nl80211_set_reg,
11118 .policy = nl80211_policy,
11119 .flags = GENL_ADMIN_PERM,
5fe231e8 11120 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 11121 },
b6863036 11122#endif
b2e1b302
LR		 11123 {
11124 .cmd = NL80211_CMD_REQ_SET_REG,
11125 .doit = nl80211_req_set_reg,
11126 .policy = nl80211_policy,
93da9cc1 11127 .flags = GENL_ADMIN_PERM,
11128 },
11129 {
24bdd9f4
JC		 11130 .cmd = NL80211_CMD_GET_MESH_CONFIG,
11131 .doit = nl80211_get_mesh_config,
93da9cc1 11132 .policy = nl80211_policy,
11133 /* can be retrieved by unprivileged users */
2b5f8b0b 11134 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11135 NL80211_FLAG_NEED_RTNL,
93da9cc1 11136 },
11137 {
24bdd9f4
JC		 11138 .cmd = NL80211_CMD_SET_MESH_CONFIG,
11139 .doit = nl80211_update_mesh_config,
93da9cc1 11140 .policy = nl80211_policy,
9aed3cc1 11141 .flags = GENL_ADMIN_PERM,
29cbe68c 11142 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11143 NL80211_FLAG_NEED_RTNL,
9aed3cc1 11144 },
2a519311
JB		 11145 {
11146 .cmd = NL80211_CMD_TRIGGER_SCAN,
11147 .doit = nl80211_trigger_scan,
11148 .policy = nl80211_policy,
11149 .flags = GENL_ADMIN_PERM,
fd014284 11150 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11151 NL80211_FLAG_NEED_RTNL,
2a519311 11152 },
91d3ab46
VK		 11153 {
11154 .cmd = NL80211_CMD_ABORT_SCAN,
11155 .doit = nl80211_abort_scan,
11156 .policy = nl80211_policy,
11157 .flags = GENL_ADMIN_PERM,
11158 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11159 NL80211_FLAG_NEED_RTNL,
11160 },
2a519311
JB		 11161 {
11162 .cmd = NL80211_CMD_GET_SCAN,
11163 .policy = nl80211_policy,
11164 .dumpit = nl80211_dump_scan,
11165 },
807f8a8c
LC		 11166 {
11167 .cmd = NL80211_CMD_START_SCHED_SCAN,
11168 .doit = nl80211_start_sched_scan,
11169 .policy = nl80211_policy,
11170 .flags = GENL_ADMIN_PERM,
11171 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11172 NL80211_FLAG_NEED_RTNL,
11173 },
11174 {
11175 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
11176 .doit = nl80211_stop_sched_scan,
11177 .policy = nl80211_policy,
11178 .flags = GENL_ADMIN_PERM,
11179 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11180 NL80211_FLAG_NEED_RTNL,
11181 },
636a5d36
JM		 11182 {
11183 .cmd = NL80211_CMD_AUTHENTICATE,
11184 .doit = nl80211_authenticate,
11185 .policy = nl80211_policy,
11186 .flags = GENL_ADMIN_PERM,
41265714 11187 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11188 NL80211_FLAG_NEED_RTNL |
11189 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 11190 },
11191 {
11192 .cmd = NL80211_CMD_ASSOCIATE,
11193 .doit = nl80211_associate,
11194 .policy = nl80211_policy,
11195 .flags = GENL_ADMIN_PERM,
41265714 11196 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11197 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11198 },
11199 {
11200 .cmd = NL80211_CMD_DEAUTHENTICATE,
11201 .doit = nl80211_deauthenticate,
11202 .policy = nl80211_policy,
11203 .flags = GENL_ADMIN_PERM,
41265714 11204 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11205 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11206 },
11207 {
11208 .cmd = NL80211_CMD_DISASSOCIATE,
11209 .doit = nl80211_disassociate,
11210 .policy = nl80211_policy,
11211 .flags = GENL_ADMIN_PERM,
41265714 11212 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11213 NL80211_FLAG_NEED_RTNL,
636a5d36 11214 },
04a773ad
JB		 11215 {
11216 .cmd = NL80211_CMD_JOIN_IBSS,
11217 .doit = nl80211_join_ibss,
11218 .policy = nl80211_policy,
11219 .flags = GENL_ADMIN_PERM,
41265714 11220 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11221 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 11222 },
11223 {
11224 .cmd = NL80211_CMD_LEAVE_IBSS,
11225 .doit = nl80211_leave_ibss,
11226 .policy = nl80211_policy,
11227 .flags = GENL_ADMIN_PERM,
41265714 11228 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11229 NL80211_FLAG_NEED_RTNL,
04a773ad 11230 },
aff89a9b
JB		 11231#ifdef CONFIG_NL80211_TESTMODE
11232 {
11233 .cmd = NL80211_CMD_TESTMODE,
11234 .doit = nl80211_testmode_do,
71063f0e 11235 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 11236 .policy = nl80211_policy,
11237 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11238 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11239 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 11240 },
11241#endif
b23aa676
SO		 11242 {
11243 .cmd = NL80211_CMD_CONNECT,
11244 .doit = nl80211_connect,
11245 .policy = nl80211_policy,
11246 .flags = GENL_ADMIN_PERM,
41265714 11247 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11248 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 11249 },
11250 {
11251 .cmd = NL80211_CMD_DISCONNECT,
11252 .doit = nl80211_disconnect,
11253 .policy = nl80211_policy,
11254 .flags = GENL_ADMIN_PERM,
41265714 11255 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11256 NL80211_FLAG_NEED_RTNL,
b23aa676 11257 },
463d0183
JB		 11258 {
11259 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11260 .doit = nl80211_wiphy_netns,
11261 .policy = nl80211_policy,
11262 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11263 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11264 NL80211_FLAG_NEED_RTNL,
463d0183 11265 },
61fa713c
HS		 11266 {
11267 .cmd = NL80211_CMD_GET_SURVEY,
11268 .policy = nl80211_policy,
11269 .dumpit = nl80211_dump_survey,
11270 },
67fbb16b
SO		 11271 {
11272 .cmd = NL80211_CMD_SET_PMKSA,
11273 .doit = nl80211_setdel_pmksa,
11274 .policy = nl80211_policy,
11275 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11276 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11277 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11278 },
11279 {
11280 .cmd = NL80211_CMD_DEL_PMKSA,
11281 .doit = nl80211_setdel_pmksa,
11282 .policy = nl80211_policy,
11283 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11284 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11285 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11286 },
11287 {
11288 .cmd = NL80211_CMD_FLUSH_PMKSA,
11289 .doit = nl80211_flush_pmksa,
11290 .policy = nl80211_policy,
11291 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11292 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11293 NL80211_FLAG_NEED_RTNL,
67fbb16b 11294 },
9588bbd5
JM		 11295 {
11296 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11297 .doit = nl80211_remain_on_channel,
11298 .policy = nl80211_policy,
11299 .flags = GENL_ADMIN_PERM,
71bbc994 11300 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11301 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 11302 },
11303 {
11304 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11305 .doit = nl80211_cancel_remain_on_channel,
11306 .policy = nl80211_policy,
11307 .flags = GENL_ADMIN_PERM,
71bbc994 11308 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11309 NL80211_FLAG_NEED_RTNL,
9588bbd5 11310 },
13ae75b1
JM		 11311 {
11312 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11313 .doit = nl80211_set_tx_bitrate_mask,
11314 .policy = nl80211_policy,
11315 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11316 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11317 NL80211_FLAG_NEED_RTNL,
13ae75b1 11318 },
026331c4 11319 {
2e161f78
JB		 11320 .cmd = NL80211_CMD_REGISTER_FRAME,
11321 .doit = nl80211_register_mgmt,
026331c4
JM		 11322 .policy = nl80211_policy,
11323 .flags = GENL_ADMIN_PERM,
71bbc994 11324 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11325 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 11326 },
11327 {
2e161f78
JB		 11328 .cmd = NL80211_CMD_FRAME,
11329 .doit = nl80211_tx_mgmt,
026331c4 11330 .policy = nl80211_policy,
f7ca38df 11331 .flags = GENL_ADMIN_PERM,
71bbc994 11332 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 11333 NL80211_FLAG_NEED_RTNL,
11334 },
11335 {
11336 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11337 .doit = nl80211_tx_mgmt_cancel_wait,
11338 .policy = nl80211_policy,
026331c4 11339 .flags = GENL_ADMIN_PERM,
71bbc994 11340 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11341 NL80211_FLAG_NEED_RTNL,
026331c4 11342 },
ffb9eb3d
KV		 11343 {
11344 .cmd = NL80211_CMD_SET_POWER_SAVE,
11345 .doit = nl80211_set_power_save,
11346 .policy = nl80211_policy,
11347 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11348 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11349 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 11350 },
11351 {
11352 .cmd = NL80211_CMD_GET_POWER_SAVE,
11353 .doit = nl80211_get_power_save,
11354 .policy = nl80211_policy,
11355 /* can be retrieved by unprivileged users */
4c476991
JB		 11356 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11357 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 11358 },
d6dc1a38
JO		 11359 {
11360 .cmd = NL80211_CMD_SET_CQM,
11361 .doit = nl80211_set_cqm,
11362 .policy = nl80211_policy,
11363 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11364 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11365 NL80211_FLAG_NEED_RTNL,
d6dc1a38 11366 },
f444de05
JB		 11367 {
11368 .cmd = NL80211_CMD_SET_CHANNEL,
11369 .doit = nl80211_set_channel,
11370 .policy = nl80211_policy,
11371 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11372 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11373 NL80211_FLAG_NEED_RTNL,
f444de05 11374 },
e8347eba
BJ		 11375 {
11376 .cmd = NL80211_CMD_SET_WDS_PEER,
11377 .doit = nl80211_set_wds_peer,
11378 .policy = nl80211_policy,
11379 .flags = GENL_ADMIN_PERM,
43b19952
JB		 11380 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11381 NL80211_FLAG_NEED_RTNL,
e8347eba 11382 },
29cbe68c
JB		 11383 {
11384 .cmd = NL80211_CMD_JOIN_MESH,
11385 .doit = nl80211_join_mesh,
11386 .policy = nl80211_policy,
11387 .flags = GENL_ADMIN_PERM,
11388 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11389 NL80211_FLAG_NEED_RTNL,
11390 },
11391 {
11392 .cmd = NL80211_CMD_LEAVE_MESH,
11393 .doit = nl80211_leave_mesh,
11394 .policy = nl80211_policy,
11395 .flags = GENL_ADMIN_PERM,
11396 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11397 NL80211_FLAG_NEED_RTNL,
11398 },
6e0bd6c3
RL		 11399 {
11400 .cmd = NL80211_CMD_JOIN_OCB,
11401 .doit = nl80211_join_ocb,
11402 .policy = nl80211_policy,
11403 .flags = GENL_ADMIN_PERM,
11404 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11405 NL80211_FLAG_NEED_RTNL,
11406 },
11407 {
11408 .cmd = NL80211_CMD_LEAVE_OCB,
11409 .doit = nl80211_leave_ocb,
11410 .policy = nl80211_policy,
11411 .flags = GENL_ADMIN_PERM,
11412 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11413 NL80211_FLAG_NEED_RTNL,
11414 },
dfb89c56 11415#ifdef CONFIG_PM
ff1b6e69
JB		 11416 {
11417 .cmd = NL80211_CMD_GET_WOWLAN,
11418 .doit = nl80211_get_wowlan,
11419 .policy = nl80211_policy,
11420 /* can be retrieved by unprivileged users */
11421 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11422 NL80211_FLAG_NEED_RTNL,
11423 },
11424 {
11425 .cmd = NL80211_CMD_SET_WOWLAN,
11426 .doit = nl80211_set_wowlan,
11427 .policy = nl80211_policy,
11428 .flags = GENL_ADMIN_PERM,
11429 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11430 NL80211_FLAG_NEED_RTNL,
11431 },
dfb89c56 11432#endif
e5497d76
JB		 11433 {
11434 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11435 .doit = nl80211_set_rekey_data,
11436 .policy = nl80211_policy,
11437 .flags = GENL_ADMIN_PERM,
11438 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11439 NL80211_FLAG_NEED_RTNL |
11440 NL80211_FLAG_CLEAR_SKB,
e5497d76 11441 },
109086ce
AN		 11442 {
11443 .cmd = NL80211_CMD_TDLS_MGMT,
11444 .doit = nl80211_tdls_mgmt,
11445 .policy = nl80211_policy,
11446 .flags = GENL_ADMIN_PERM,
11447 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11448 NL80211_FLAG_NEED_RTNL,
11449 },
11450 {
11451 .cmd = NL80211_CMD_TDLS_OPER,
11452 .doit = nl80211_tdls_oper,
11453 .policy = nl80211_policy,
11454 .flags = GENL_ADMIN_PERM,
11455 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11456 NL80211_FLAG_NEED_RTNL,
11457 },
28946da7
JB		 11458 {
11459 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11460 .doit = nl80211_register_unexpected_frame,
11461 .policy = nl80211_policy,
11462 .flags = GENL_ADMIN_PERM,
11463 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11464 NL80211_FLAG_NEED_RTNL,
11465 },
7f6cf311
JB		 11466 {
11467 .cmd = NL80211_CMD_PROBE_CLIENT,
11468 .doit = nl80211_probe_client,
11469 .policy = nl80211_policy,
11470 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11471 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 11472 NL80211_FLAG_NEED_RTNL,
11473 },
5e760230
JB		 11474 {
11475 .cmd = NL80211_CMD_REGISTER_BEACONS,
11476 .doit = nl80211_register_beacons,
11477 .policy = nl80211_policy,
11478 .flags = GENL_ADMIN_PERM,
11479 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11480 NL80211_FLAG_NEED_RTNL,
11481 },
1d9d9213
SW		 11482 {
11483 .cmd = NL80211_CMD_SET_NOACK_MAP,
11484 .doit = nl80211_set_noack_map,
11485 .policy = nl80211_policy,
11486 .flags = GENL_ADMIN_PERM,
11487 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11488 NL80211_FLAG_NEED_RTNL,
11489 },
98104fde
JB		 11490 {
11491 .cmd = NL80211_CMD_START_P2P_DEVICE,
11492 .doit = nl80211_start_p2p_device,
11493 .policy = nl80211_policy,
11494 .flags = GENL_ADMIN_PERM,
11495 .internal_flags = NL80211_FLAG_NEED_WDEV |
11496 NL80211_FLAG_NEED_RTNL,
11497 },
11498 {
11499 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11500 .doit = nl80211_stop_p2p_device,
11501 .policy = nl80211_policy,
11502 .flags = GENL_ADMIN_PERM,
11503 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11504 NL80211_FLAG_NEED_RTNL,
11505 },
f4e583c8
AQ		 11506 {
11507 .cmd = NL80211_CMD_SET_MCAST_RATE,
11508 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 11509 .policy = nl80211_policy,
11510 .flags = GENL_ADMIN_PERM,
11511 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11512 NL80211_FLAG_NEED_RTNL,
11513 },
11514 {
11515 .cmd = NL80211_CMD_SET_MAC_ACL,
11516 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 11517 .policy = nl80211_policy,
11518 .flags = GENL_ADMIN_PERM,
11519 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11520 NL80211_FLAG_NEED_RTNL,
11521 },
04f39047
SW		 11522 {
11523 .cmd = NL80211_CMD_RADAR_DETECT,
11524 .doit = nl80211_start_radar_detection,
11525 .policy = nl80211_policy,
11526 .flags = GENL_ADMIN_PERM,
11527 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11528 NL80211_FLAG_NEED_RTNL,
11529 },
3713b4e3
JB		 11530 {
11531 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11532 .doit = nl80211_get_protocol_features,
11533 .policy = nl80211_policy,
11534 },
355199e0
JM		 11535 {
11536 .cmd = NL80211_CMD_UPDATE_FT_IES,
11537 .doit = nl80211_update_ft_ies,
11538 .policy = nl80211_policy,
11539 .flags = GENL_ADMIN_PERM,
11540 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11541 NL80211_FLAG_NEED_RTNL,
11542 },
5de17984
AS		 11543 {
11544 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11545 .doit = nl80211_crit_protocol_start,
11546 .policy = nl80211_policy,
11547 .flags = GENL_ADMIN_PERM,
11548 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11549 NL80211_FLAG_NEED_RTNL,
11550 },
11551 {
11552 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11553 .doit = nl80211_crit_protocol_stop,
11554 .policy = nl80211_policy,
11555 .flags = GENL_ADMIN_PERM,
11556 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11557 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 11558 },
11559 {
11560 .cmd = NL80211_CMD_GET_COALESCE,
11561 .doit = nl80211_get_coalesce,
11562 .policy = nl80211_policy,
11563 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11564 NL80211_FLAG_NEED_RTNL,
11565 },
11566 {
11567 .cmd = NL80211_CMD_SET_COALESCE,
11568 .doit = nl80211_set_coalesce,
11569 .policy = nl80211_policy,
11570 .flags = GENL_ADMIN_PERM,
11571 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11572 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 11573 },
11574 {
11575 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11576 .doit = nl80211_channel_switch,
11577 .policy = nl80211_policy,
11578 .flags = GENL_ADMIN_PERM,
11579 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11580 NL80211_FLAG_NEED_RTNL,
11581 },
ad7e718c
JB		 11582 {
11583 .cmd = NL80211_CMD_VENDOR,
11584 .doit = nl80211_vendor_cmd,
7bdbe400 11585 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c
JB		 11586 .policy = nl80211_policy,
11587 .flags = GENL_ADMIN_PERM,
11588 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11589 NL80211_FLAG_NEED_RTNL,
11590 },
fa9ffc74
KP		 11591 {
11592 .cmd = NL80211_CMD_SET_QOS_MAP,
11593 .doit = nl80211_set_qos_map,
11594 .policy = nl80211_policy,
11595 .flags = GENL_ADMIN_PERM,
11596 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11597 NL80211_FLAG_NEED_RTNL,
11598 },
960d01ac
JB		 11599 {
11600 .cmd = NL80211_CMD_ADD_TX_TS,
11601 .doit = nl80211_add_tx_ts,
11602 .policy = nl80211_policy,
11603 .flags = GENL_ADMIN_PERM,
11604 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11605 NL80211_FLAG_NEED_RTNL,
11606 },
11607 {
11608 .cmd = NL80211_CMD_DEL_TX_TS,
11609 .doit = nl80211_del_tx_ts,
11610 .policy = nl80211_policy,
11611 .flags = GENL_ADMIN_PERM,
11612 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11613 NL80211_FLAG_NEED_RTNL,
11614 },
1057d35e
AN		 11615 {
11616 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11617 .doit = nl80211_tdls_channel_switch,
11618 .policy = nl80211_policy,
11619 .flags = GENL_ADMIN_PERM,
11620 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11621 NL80211_FLAG_NEED_RTNL,
11622 },
11623 {
11624 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11625 .doit = nl80211_tdls_cancel_channel_switch,
11626 .policy = nl80211_policy,
11627 .flags = GENL_ADMIN_PERM,
11628 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11629 NL80211_FLAG_NEED_RTNL,
11630 },
55682965 11631};
9588bbd5 11632
55682965
JB		 11633/* notification functions */
11634
3bb20556
JB		 11635void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11636 enum nl80211_commands cmd)
55682965
JB		 11637{
11638 struct sk_buff *msg;
86e8cf98 11639 struct nl80211_dump_wiphy_state state = {};
55682965 11640
3bb20556
JB		 11641 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11642 cmd != NL80211_CMD_DEL_WIPHY);
11643
fd2120ca 11644 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 11645 if (!msg)
11646 return;
11647
3bb20556 11648 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 11649 nlmsg_free(msg);
11650 return;
11651 }
11652
68eb5503 11653 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11654 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 11655}
11656
362a415d
JB		 11657static int nl80211_add_scan_req(struct sk_buff *msg,
11658 struct cfg80211_registered_device *rdev)
11659{
11660 struct cfg80211_scan_request *req = rdev->scan_req;
11661 struct nlattr *nest;
11662 int i;
11663
11664 if (WARN_ON(!req))
11665 return 0;
11666
11667 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11668 if (!nest)
11669 goto nla_put_failure;
9360ffd1
DM		 11670 for (i = 0; i < req->n_ssids; i++) {
11671 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11672 goto nla_put_failure;
11673 }
362a415d
JB		 11674 nla_nest_end(msg, nest);
11675
11676 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11677 if (!nest)
11678 goto nla_put_failure;
9360ffd1
DM		 11679 for (i = 0; i < req->n_channels; i++) {
11680 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11681 goto nla_put_failure;
11682 }
362a415d
JB		 11683 nla_nest_end(msg, nest);
11684
9360ffd1
DM		 11685 if (req->ie &&
11686 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11687 goto nla_put_failure;
362a415d 11688
ae917c9f
JB		 11689 if (req->flags &&
11690 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11691 goto nla_put_failure;
ed473771 11692
362a415d
JB		 11693 return 0;
11694 nla_put_failure:
11695 return -ENOBUFS;
11696}
11697
a538e2d5
JB		 11698static int nl80211_send_scan_msg(struct sk_buff *msg,
11699 struct cfg80211_registered_device *rdev,
fd014284 11700 struct wireless_dev *wdev,
15e47304 11701 u32 portid, u32 seq, int flags,
a538e2d5 11702 u32 cmd)
2a519311
JB		 11703{
11704 void *hdr;
11705
15e47304 11706 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11707 if (!hdr)
11708 return -1;
11709
9360ffd1 11710 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11711 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11712 wdev->netdev->ifindex)) ||
11713 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 11714 goto nla_put_failure;
2a519311 11715
362a415d
JB		 11716 /* ignore errors and send incomplete event anyway */
11717 nl80211_add_scan_req(msg, rdev);
2a519311 11718
053c095a
JB		 11719 genlmsg_end(msg, hdr);
11720 return 0;
2a519311
JB		 11721
11722 nla_put_failure:
11723 genlmsg_cancel(msg, hdr);
11724 return -EMSGSIZE;
11725}
11726
807f8a8c
LC		 11727static int
11728nl80211_send_sched_scan_msg(struct sk_buff *msg,
11729 struct cfg80211_registered_device *rdev,
11730 struct net_device *netdev,
15e47304 11731 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 11732{
11733 void *hdr;
11734
15e47304 11735 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 11736 if (!hdr)
11737 return -1;
11738
9360ffd1
DM		 11739 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11740 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11741 goto nla_put_failure;
807f8a8c 11742
053c095a
JB		 11743 genlmsg_end(msg, hdr);
11744 return 0;
807f8a8c
LC		 11745
11746 nla_put_failure:
11747 genlmsg_cancel(msg, hdr);
11748 return -EMSGSIZE;
11749}
11750
a538e2d5 11751void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 11752 struct wireless_dev *wdev)
a538e2d5
JB		 11753{
11754 struct sk_buff *msg;
11755
58050fce 11756 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 11757 if (!msg)
11758 return;
11759
fd014284 11760 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11761 NL80211_CMD_TRIGGER_SCAN) < 0) {
11762 nlmsg_free(msg);
11763 return;
11764 }
11765
68eb5503 11766 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11767 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11768}
11769
f9d15d16
JB		 11770struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11771 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11772{
11773 struct sk_buff *msg;
11774
fd2120ca 11775 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11776 if (!msg)
f9d15d16 11777 return NULL;
2a519311 11778
fd014284 11779 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11780 aborted ? NL80211_CMD_SCAN_ABORTED :
11781 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11782 nlmsg_free(msg);
f9d15d16 11783 return NULL;
2a519311
JB		 11784 }
11785
f9d15d16 11786 return msg;
2a519311
JB		 11787}
11788
f9d15d16
JB		 11789void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11790 struct sk_buff *msg)
2a519311 11791{
2a519311
JB		 11792 if (!msg)
11793 return;
11794
68eb5503 11795 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11796 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11797}
11798
807f8a8c
LC		 11799void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11800 struct net_device *netdev)
11801{
11802 struct sk_buff *msg;
11803
11804 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11805 if (!msg)
11806 return;
11807
11808 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11809 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11810 nlmsg_free(msg);
11811 return;
11812 }
11813
68eb5503 11814 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11815 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11816}
11817
11818void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11819 struct net_device *netdev, u32 cmd)
11820{
11821 struct sk_buff *msg;
11822
58050fce 11823 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11824 if (!msg)
11825 return;
11826
11827 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11828 nlmsg_free(msg);
11829 return;
11830 }
11831
68eb5503 11832 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11833 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11834}
11835
b0d7aa59
JD		 11836static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11837 struct regulatory_request *request)
73d54c9e 11838{
73d54c9e 11839 /* Userspace can always count this one always being set */
9360ffd1
DM		 11840 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11841 goto nla_put_failure;
11842
11843 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11844 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11845 NL80211_REGDOM_TYPE_WORLD))
11846 goto nla_put_failure;
11847 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11848 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11849 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11850 goto nla_put_failure;
11851 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11852 request->intersect) {
11853 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11854 NL80211_REGDOM_TYPE_INTERSECTION))
11855 goto nla_put_failure;
11856 } else {
11857 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11858 NL80211_REGDOM_TYPE_COUNTRY) ||
11859 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11860 request->alpha2))
11861 goto nla_put_failure;
11862 }
11863
ad30ca2c
AN		 11864 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11865 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11866
11867 if (wiphy &&
11868 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11869 goto nla_put_failure;
1bdd716c
AN		 11870
11871 if (wiphy &&
11872 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11873 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11874 goto nla_put_failure;
ad30ca2c 11875 }
73d54c9e 11876
b0d7aa59
JD		 11877 return true;
11878
11879nla_put_failure:
11880 return false;
11881}
11882
11883/*
11884 * This can happen on global regulatory changes or device specific settings
11885 * based on custom regulatory domains.
11886 */
11887void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11888 struct regulatory_request *request)
11889{
11890 struct sk_buff *msg;
11891 void *hdr;
11892
11893 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11894 if (!msg)
11895 return;
11896
11897 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11898 if (!hdr) {
11899 nlmsg_free(msg);
11900 return;
11901 }
11902
11903 if (nl80211_reg_change_event_fill(msg, request) == false)
11904 goto nla_put_failure;
11905
3b7b72ee 11906 genlmsg_end(msg, hdr);
73d54c9e 11907
bc43b28c 11908 rcu_read_lock();
68eb5503 11909 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11910 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 11911 rcu_read_unlock();
73d54c9e
LR		 11912
11913 return;
11914
11915nla_put_failure:
11916 genlmsg_cancel(msg, hdr);
11917 nlmsg_free(msg);
11918}
11919
6039f6d2
JM		 11920static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11921 struct net_device *netdev,
11922 const u8 *buf, size_t len,
b0b6aa2c
EP		 11923 enum nl80211_commands cmd, gfp_t gfp,
11924 int uapsd_queues)
6039f6d2
JM		 11925{
11926 struct sk_buff *msg;
11927 void *hdr;
11928
e6d6e342 11929 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 11930 if (!msg)
11931 return;
11932
11933 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11934 if (!hdr) {
11935 nlmsg_free(msg);
11936 return;
11937 }
11938
9360ffd1
DM		 11939 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11940 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11941 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11942 goto nla_put_failure;
6039f6d2 11943
b0b6aa2c
EP		 11944 if (uapsd_queues >= 0) {
11945 struct nlattr *nla_wmm =
11946 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11947 if (!nla_wmm)
11948 goto nla_put_failure;
11949
11950 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11951 uapsd_queues))
11952 goto nla_put_failure;
11953
11954 nla_nest_end(msg, nla_wmm);
11955 }
11956
3b7b72ee 11957 genlmsg_end(msg, hdr);
6039f6d2 11958
68eb5503 11959 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11960 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 11961 return;
11962
11963 nla_put_failure:
11964 genlmsg_cancel(msg, hdr);
11965 nlmsg_free(msg);
11966}
11967
11968void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11969 struct net_device *netdev, const u8 *buf,
11970 size_t len, gfp_t gfp)
6039f6d2
JM		 11971{
11972 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11973 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 11974}
11975
11976void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11977 struct net_device *netdev, const u8 *buf,
b0b6aa2c 11978 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 11979{
e6d6e342 11980 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11981 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 11982}
11983
53b46b84 11984void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11985 struct net_device *netdev, const u8 *buf,
11986 size_t len, gfp_t gfp)
6039f6d2
JM		 11987{
11988 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11989 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 11990}
11991
53b46b84
JM		 11992void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11993 struct net_device *netdev, const u8 *buf,
e6d6e342 11994 size_t len, gfp_t gfp)
6039f6d2
JM		 11995{
11996 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11997 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 11998}
11999
6ff57cf8
JB		 12000void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
12001 size_t len)
cf4e594e 12002{
947add36
JB		 12003 struct wireless_dev *wdev = dev->ieee80211_ptr;
12004 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12005 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 12006 const struct ieee80211_mgmt *mgmt = (void *)buf;
12007 u32 cmd;
947add36 12008
6ff57cf8
JB		 12009 if (WARN_ON(len < 2))
12010 return;
cf4e594e 12011
6ff57cf8
JB		 12012 if (ieee80211_is_deauth(mgmt->frame_control))
12013 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
12014 else
12015 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 12016
6ff57cf8 12017 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 12018 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 12019}
6ff57cf8 12020EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 12021
1b06bb40
LR		 12022static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
12023 struct net_device *netdev, int cmd,
e6d6e342 12024 const u8 *addr, gfp_t gfp)
1965c853
JM		 12025{
12026 struct sk_buff *msg;
12027 void *hdr;
12028
e6d6e342 12029 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 12030 if (!msg)
12031 return;
12032
12033 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12034 if (!hdr) {
12035 nlmsg_free(msg);
12036 return;
12037 }
12038
9360ffd1
DM		 12039 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12040 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12041 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
12042 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12043 goto nla_put_failure;
1965c853 12044
3b7b72ee 12045 genlmsg_end(msg, hdr);
1965c853 12046
68eb5503 12047 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12048 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 12049 return;
12050
12051 nla_put_failure:
12052 genlmsg_cancel(msg, hdr);
12053 nlmsg_free(msg);
12054}
12055
12056void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12057 struct net_device *netdev, const u8 *addr,
12058 gfp_t gfp)
1965c853
JM		 12059{
12060 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 12061 addr, gfp);
1965c853
JM		 12062}
12063
12064void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12065 struct net_device *netdev, const u8 *addr,
12066 gfp_t gfp)
1965c853 12067{
e6d6e342
JB		 12068 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
12069 addr, gfp);
1965c853
JM		 12070}
12071
b23aa676
SO		 12072void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
12073 struct net_device *netdev, const u8 *bssid,
12074 const u8 *req_ie, size_t req_ie_len,
12075 const u8 *resp_ie, size_t resp_ie_len,
12076 u16 status, gfp_t gfp)
12077{
12078 struct sk_buff *msg;
12079 void *hdr;
12080
58050fce 12081 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12082 if (!msg)
12083 return;
12084
12085 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
12086 if (!hdr) {
12087 nlmsg_free(msg);
12088 return;
12089 }
12090
9360ffd1
DM		 12091 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12092 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12093 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
12094 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
12095 (req_ie &&
12096 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12097 (resp_ie &&
12098 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12099 goto nla_put_failure;
b23aa676 12100
3b7b72ee 12101 genlmsg_end(msg, hdr);
b23aa676 12102
68eb5503 12103 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12104 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12105 return;
12106
12107 nla_put_failure:
12108 genlmsg_cancel(msg, hdr);
12109 nlmsg_free(msg);
12110
12111}
12112
12113void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
12114 struct net_device *netdev, const u8 *bssid,
12115 const u8 *req_ie, size_t req_ie_len,
12116 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
12117{
12118 struct sk_buff *msg;
12119 void *hdr;
12120
58050fce 12121 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12122 if (!msg)
12123 return;
12124
12125 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
12126 if (!hdr) {
12127 nlmsg_free(msg);
12128 return;
12129 }
12130
9360ffd1
DM		 12131 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12132 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12133 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
12134 (req_ie &&
12135 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12136 (resp_ie &&
12137 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12138 goto nla_put_failure;
b23aa676 12139
3b7b72ee 12140 genlmsg_end(msg, hdr);
b23aa676 12141
68eb5503 12142 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12143 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12144 return;
12145
12146 nla_put_failure:
12147 genlmsg_cancel(msg, hdr);
12148 nlmsg_free(msg);
12149
12150}
12151
12152void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
12153 struct net_device *netdev, u16 reason,
667503dd 12154 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 12155{
12156 struct sk_buff *msg;
12157 void *hdr;
12158
58050fce 12159 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 12160 if (!msg)
12161 return;
12162
12163 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
12164 if (!hdr) {
12165 nlmsg_free(msg);
12166 return;
12167 }
12168
9360ffd1
DM		 12169 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12170 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12171 (from_ap && reason &&
12172 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
12173 (from_ap &&
12174 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
12175 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
12176 goto nla_put_failure;
b23aa676 12177
3b7b72ee 12178 genlmsg_end(msg, hdr);
b23aa676 12179
68eb5503 12180 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12181 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 12182 return;
12183
12184 nla_put_failure:
12185 genlmsg_cancel(msg, hdr);
12186 nlmsg_free(msg);
12187
12188}
12189
04a773ad
JB		 12190void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
12191 struct net_device *netdev, const u8 *bssid,
12192 gfp_t gfp)
12193{
12194 struct sk_buff *msg;
12195 void *hdr;
12196
fd2120ca 12197 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 12198 if (!msg)
12199 return;
12200
12201 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
12202 if (!hdr) {
12203 nlmsg_free(msg);
12204 return;
12205 }
12206
9360ffd1
DM		 12207 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12208 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12209 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12210 goto nla_put_failure;
04a773ad 12211
3b7b72ee 12212 genlmsg_end(msg, hdr);
04a773ad 12213
68eb5503 12214 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12215 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 12216 return;
12217
12218 nla_put_failure:
12219 genlmsg_cancel(msg, hdr);
12220 nlmsg_free(msg);
12221}
12222
947add36
JB		 12223void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12224 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 12225{
947add36 12226 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12227 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 12228 struct sk_buff *msg;
12229 void *hdr;
12230
947add36
JB		 12231 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12232 return;
12233
12234 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12235
c93b5e71
JC		 12236 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12237 if (!msg)
12238 return;
12239
12240 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12241 if (!hdr) {
12242 nlmsg_free(msg);
12243 return;
12244 }
12245
9360ffd1 12246 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 12247 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12248 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 12249 (ie_len && ie &&
12250 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12251 goto nla_put_failure;
c93b5e71 12252
3b7b72ee 12253 genlmsg_end(msg, hdr);
c93b5e71 12254
68eb5503 12255 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12256 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 12257 return;
12258
12259 nla_put_failure:
12260 genlmsg_cancel(msg, hdr);
12261 nlmsg_free(msg);
12262}
947add36 12263EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 12264
a3b8b056
JM		 12265void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12266 struct net_device *netdev, const u8 *addr,
12267 enum nl80211_key_type key_type, int key_id,
e6d6e342 12268 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 12269{
12270 struct sk_buff *msg;
12271 void *hdr;
12272
e6d6e342 12273 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 12274 if (!msg)
12275 return;
12276
12277 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12278 if (!hdr) {
12279 nlmsg_free(msg);
12280 return;
12281 }
12282
9360ffd1
DM		 12283 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12284 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12285 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12286 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12287 (key_id != -1 &&
12288 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12289 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12290 goto nla_put_failure;
a3b8b056 12291
3b7b72ee 12292 genlmsg_end(msg, hdr);
a3b8b056 12293
68eb5503 12294 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12295 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 12296 return;
12297
12298 nla_put_failure:
12299 genlmsg_cancel(msg, hdr);
12300 nlmsg_free(msg);
12301}
12302
6bad8766
LR		 12303void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12304 struct ieee80211_channel *channel_before,
12305 struct ieee80211_channel *channel_after)
12306{
12307 struct sk_buff *msg;
12308 void *hdr;
12309 struct nlattr *nl_freq;
12310
fd2120ca 12311 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 12312 if (!msg)
12313 return;
12314
12315 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12316 if (!hdr) {
12317 nlmsg_free(msg);
12318 return;
12319 }
12320
12321 /*
12322 * Since we are applying the beacon hint to a wiphy we know its
12323 * wiphy_idx is valid
12324 */
9360ffd1
DM		 12325 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12326 goto nla_put_failure;
6bad8766
LR		 12327
12328 /* Before */
12329 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12330 if (!nl_freq)
12331 goto nla_put_failure;
cdc89b97 12332 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 12333 goto nla_put_failure;
12334 nla_nest_end(msg, nl_freq);
12335
12336 /* After */
12337 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12338 if (!nl_freq)
12339 goto nla_put_failure;
cdc89b97 12340 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 12341 goto nla_put_failure;
12342 nla_nest_end(msg, nl_freq);
12343
3b7b72ee 12344 genlmsg_end(msg, hdr);
6bad8766 12345
463d0183 12346 rcu_read_lock();
68eb5503 12347 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12348 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 12349 rcu_read_unlock();
6bad8766
LR		 12350
12351 return;
12352
12353nla_put_failure:
12354 genlmsg_cancel(msg, hdr);
12355 nlmsg_free(msg);
12356}
12357
9588bbd5
JM		 12358static void nl80211_send_remain_on_chan_event(
12359 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 12360 struct wireless_dev *wdev, u64 cookie,
9588bbd5 12361 struct ieee80211_channel *chan,
9588bbd5
JM		 12362 unsigned int duration, gfp_t gfp)
12363{
12364 struct sk_buff *msg;
12365 void *hdr;
12366
12367 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12368 if (!msg)
12369 return;
12370
12371 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12372 if (!hdr) {
12373 nlmsg_free(msg);
12374 return;
12375 }
12376
9360ffd1 12377 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12378 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12379 wdev->netdev->ifindex)) ||
00f53350 12380 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 12381 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 12382 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12383 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 12384 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
12385 goto nla_put_failure;
9588bbd5 12386
9360ffd1
DM		 12387 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12388 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12389 goto nla_put_failure;
9588bbd5 12390
3b7b72ee 12391 genlmsg_end(msg, hdr);
9588bbd5 12392
68eb5503 12393 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12394 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 12395 return;
12396
12397 nla_put_failure:
12398 genlmsg_cancel(msg, hdr);
12399 nlmsg_free(msg);
12400}
12401
947add36
JB		 12402void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12403 struct ieee80211_channel *chan,
12404 unsigned int duration, gfp_t gfp)
9588bbd5 12405{
947add36 12406 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12407 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12408
12409 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 12410 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 12411 rdev, wdev, cookie, chan,
42d97a59 12412 duration, gfp);
9588bbd5 12413}
947add36 12414EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 12415
947add36
JB		 12416void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12417 struct ieee80211_channel *chan,
12418 gfp_t gfp)
9588bbd5 12419{
947add36 12420 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12421 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12422
12423 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 12424 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 12425 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 12426}
947add36 12427EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 12428
947add36
JB		 12429void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12430 struct station_info *sinfo, gfp_t gfp)
98b62183 12431{
947add36 12432 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12433 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 12434 struct sk_buff *msg;
12435
947add36
JB		 12436 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12437
58050fce 12438 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 12439 if (!msg)
12440 return;
12441
cf5ead82 12442 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 12443 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 12444 nlmsg_free(msg);
12445 return;
12446 }
12447
68eb5503 12448 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12449 NL80211_MCGRP_MLME, gfp);
98b62183 12450}
947add36 12451EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 12452
cf5ead82
JB		 12453void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12454 struct station_info *sinfo, gfp_t gfp)
ec15e68b 12455{
947add36 12456 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12457 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 12458 struct sk_buff *msg;
cf5ead82
JB		 12459 struct station_info empty_sinfo = {};
12460
12461 if (!sinfo)
12462 sinfo = &empty_sinfo;
ec15e68b 12463
947add36
JB		 12464 trace_cfg80211_del_sta(dev, mac_addr);
12465
58050fce 12466 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 12467 if (!msg)
12468 return;
12469
cf5ead82 12470 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 12471 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 12472 nlmsg_free(msg);
12473 return;
12474 }
12475
68eb5503 12476 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12477 NL80211_MCGRP_MLME, gfp);
ec15e68b 12478}
cf5ead82 12479EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 12480
947add36
JB		 12481void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12482 enum nl80211_connect_failed_reason reason,
12483 gfp_t gfp)
ed44a951 12484{
947add36 12485 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12486 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 12487 struct sk_buff *msg;
12488 void *hdr;
12489
12490 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12491 if (!msg)
12492 return;
12493
12494 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12495 if (!hdr) {
12496 nlmsg_free(msg);
12497 return;
12498 }
12499
12500 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12501 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12502 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12503 goto nla_put_failure;
12504
12505 genlmsg_end(msg, hdr);
12506
68eb5503 12507 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12508 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 12509 return;
12510
12511 nla_put_failure:
12512 genlmsg_cancel(msg, hdr);
12513 nlmsg_free(msg);
12514}
947add36 12515EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 12516
b92ab5d8
JB		 12517static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12518 const u8 *addr, gfp_t gfp)
28946da7
JB		 12519{
12520 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12521 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 12522 struct sk_buff *msg;
12523 void *hdr;
15e47304 12524 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 12525
15e47304 12526 if (!nlportid)
28946da7
JB		 12527 return false;
12528
12529 msg = nlmsg_new(100, gfp);
12530 if (!msg)
12531 return true;
12532
b92ab5d8 12533 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 12534 if (!hdr) {
12535 nlmsg_free(msg);
12536 return true;
12537 }
12538
9360ffd1
DM		 12539 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12540 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12541 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12542 goto nla_put_failure;
28946da7 12543
9c90a9f6 12544 genlmsg_end(msg, hdr);
15e47304 12545 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 12546 return true;
12547
12548 nla_put_failure:
12549 genlmsg_cancel(msg, hdr);
12550 nlmsg_free(msg);
12551 return true;
12552}
12553
947add36
JB		 12554bool cfg80211_rx_spurious_frame(struct net_device *dev,
12555 const u8 *addr, gfp_t gfp)
b92ab5d8 12556{
947add36
JB		 12557 struct wireless_dev *wdev = dev->ieee80211_ptr;
12558 bool ret;
12559
12560 trace_cfg80211_rx_spurious_frame(dev, addr);
12561
12562 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12563 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12564 trace_cfg80211_return_bool(false);
12565 return false;
12566 }
12567 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12568 addr, gfp);
12569 trace_cfg80211_return_bool(ret);
12570 return ret;
b92ab5d8 12571}
947add36 12572EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 12573
947add36
JB		 12574bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12575 const u8 *addr, gfp_t gfp)
b92ab5d8 12576{
947add36
JB		 12577 struct wireless_dev *wdev = dev->ieee80211_ptr;
12578 bool ret;
12579
12580 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12581
12582 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12583 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12584 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12585 trace_cfg80211_return_bool(false);
12586 return false;
12587 }
12588 ret = __nl80211_unexpected_frame(dev,
12589 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12590 addr, gfp);
12591 trace_cfg80211_return_bool(ret);
12592 return ret;
b92ab5d8 12593}
947add36 12594EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 12595
2e161f78 12596int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 12597 struct wireless_dev *wdev, u32 nlportid,
804483e9 12598 int freq, int sig_dbm,
19504cf5 12599 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 12600{
71bbc994 12601 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12602 struct sk_buff *msg;
12603 void *hdr;
026331c4
JM		 12604
12605 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12606 if (!msg)
12607 return -ENOMEM;
12608
2e161f78 12609 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 12610 if (!hdr) {
12611 nlmsg_free(msg);
12612 return -ENOMEM;
12613 }
12614
9360ffd1 12615 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12616 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12617 netdev->ifindex)) ||
a838490b 12618 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12619 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12620 (sig_dbm &&
12621 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 12622 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12623 (flags &&
12624 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 12625 goto nla_put_failure;
026331c4 12626
3b7b72ee 12627 genlmsg_end(msg, hdr);
026331c4 12628
15e47304 12629 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 12630
12631 nla_put_failure:
12632 genlmsg_cancel(msg, hdr);
12633 nlmsg_free(msg);
12634 return -ENOBUFS;
12635}
12636
947add36
JB		 12637void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12638 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 12639{
947add36 12640 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12641 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 12642 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12643 struct sk_buff *msg;
12644 void *hdr;
12645
947add36
JB		 12646 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12647
026331c4
JM		 12648 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12649 if (!msg)
12650 return;
12651
2e161f78 12652 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 12653 if (!hdr) {
12654 nlmsg_free(msg);
12655 return;
12656 }
12657
9360ffd1 12658 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12659 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12660 netdev->ifindex)) ||
a838490b 12661 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12662 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12663 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12664 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12665 goto nla_put_failure;
026331c4 12666
3b7b72ee 12667 genlmsg_end(msg, hdr);
026331c4 12668
68eb5503 12669 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12670 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 12671 return;
12672
12673 nla_put_failure:
12674 genlmsg_cancel(msg, hdr);
12675 nlmsg_free(msg);
12676}
947add36 12677EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 12678
5b97f49d
JB		 12679static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12680 const char *mac, gfp_t gfp)
d6dc1a38 12681{
947add36 12682 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12683 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12684 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12685 void **cb;
947add36 12686
d6dc1a38 12687 if (!msg)
5b97f49d 12688 return NULL;
d6dc1a38 12689
5b97f49d
JB		 12690 cb = (void **)msg->cb;
12691
12692 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12693 if (!cb[0]) {
d6dc1a38 12694 nlmsg_free(msg);
5b97f49d 12695 return NULL;
d6dc1a38
JO		 12696 }
12697
9360ffd1 12698 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12699 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12700 goto nla_put_failure;
d6dc1a38 12701
5b97f49d 12702 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12703 goto nla_put_failure;
12704
5b97f49d
JB		 12705 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12706 if (!cb[1])
9360ffd1 12707 goto nla_put_failure;
d6dc1a38 12708
5b97f49d 12709 cb[2] = rdev;
d6dc1a38 12710
5b97f49d
JB		 12711 return msg;
12712 nla_put_failure:
12713 nlmsg_free(msg);
12714 return NULL;
12715}
12716
12717static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12718{
12719 void **cb = (void **)msg->cb;
12720 struct cfg80211_registered_device *rdev = cb[2];
12721
12722 nla_nest_end(msg, cb[1]);
12723 genlmsg_end(msg, cb[0]);
12724
12725 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 12726
68eb5503 12727 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12728 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 12729}
12730
12731void cfg80211_cqm_rssi_notify(struct net_device *dev,
12732 enum nl80211_cqm_rssi_threshold_event rssi_event,
12733 gfp_t gfp)
12734{
12735 struct sk_buff *msg;
12736
12737 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12738
98f03342
JB		 12739 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12740 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12741 return;
12742
5b97f49d
JB		 12743 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12744 if (!msg)
12745 return;
12746
12747 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12748 rssi_event))
12749 goto nla_put_failure;
12750
12751 cfg80211_send_cqm(msg, gfp);
12752
d6dc1a38
JO		 12753 return;
12754
12755 nla_put_failure:
d6dc1a38
JO		 12756 nlmsg_free(msg);
12757}
947add36 12758EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12759
5b97f49d
JB		 12760void cfg80211_cqm_txe_notify(struct net_device *dev,
12761 const u8 *peer, u32 num_packets,
12762 u32 rate, u32 intvl, gfp_t gfp)
12763{
12764 struct sk_buff *msg;
12765
12766 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12767 if (!msg)
12768 return;
12769
12770 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12771 goto nla_put_failure;
12772
12773 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12774 goto nla_put_failure;
12775
12776 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12777 goto nla_put_failure;
12778
12779 cfg80211_send_cqm(msg, gfp);
12780 return;
12781
12782 nla_put_failure:
12783 nlmsg_free(msg);
12784}
12785EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12786
12787void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12788 const u8 *peer, u32 num_packets, gfp_t gfp)
12789{
12790 struct sk_buff *msg;
12791
12792 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12793
12794 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12795 if (!msg)
12796 return;
12797
12798 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12799 goto nla_put_failure;
12800
12801 cfg80211_send_cqm(msg, gfp);
12802 return;
12803
12804 nla_put_failure:
12805 nlmsg_free(msg);
12806}
12807EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12808
98f03342
JB		 12809void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12810{
12811 struct sk_buff *msg;
12812
12813 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12814 if (!msg)
12815 return;
12816
12817 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12818 goto nla_put_failure;
12819
12820 cfg80211_send_cqm(msg, gfp);
12821 return;
12822
12823 nla_put_failure:
12824 nlmsg_free(msg);
12825}
12826EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12827
947add36
JB		 12828static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12829 struct net_device *netdev, const u8 *bssid,
12830 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 12831{
12832 struct sk_buff *msg;
12833 struct nlattr *rekey_attr;
12834 void *hdr;
12835
58050fce 12836 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 12837 if (!msg)
12838 return;
12839
12840 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12841 if (!hdr) {
12842 nlmsg_free(msg);
12843 return;
12844 }
12845
9360ffd1
DM		 12846 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12847 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12848 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12849 goto nla_put_failure;
e5497d76
JB		 12850
12851 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12852 if (!rekey_attr)
12853 goto nla_put_failure;
12854
9360ffd1
DM		 12855 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12856 NL80211_REPLAY_CTR_LEN, replay_ctr))
12857 goto nla_put_failure;
e5497d76
JB		 12858
12859 nla_nest_end(msg, rekey_attr);
12860
3b7b72ee 12861 genlmsg_end(msg, hdr);
e5497d76 12862
68eb5503 12863 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12864 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 12865 return;
12866
12867 nla_put_failure:
12868 genlmsg_cancel(msg, hdr);
12869 nlmsg_free(msg);
12870}
12871
947add36
JB		 12872void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12873 const u8 *replay_ctr, gfp_t gfp)
12874{
12875 struct wireless_dev *wdev = dev->ieee80211_ptr;
12876 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12877 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12878
12879 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12880 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12881}
12882EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12883
12884static void
12885nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12886 struct net_device *netdev, int index,
12887 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 12888{
12889 struct sk_buff *msg;
12890 struct nlattr *attr;
12891 void *hdr;
12892
58050fce 12893 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 12894 if (!msg)
12895 return;
12896
12897 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12898 if (!hdr) {
12899 nlmsg_free(msg);
12900 return;
12901 }
12902
9360ffd1
DM		 12903 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12904 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12905 goto nla_put_failure;
c9df56b4
JM		 12906
12907 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12908 if (!attr)
12909 goto nla_put_failure;
12910
9360ffd1
DM		 12911 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12912 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12913 (preauth &&
12914 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12915 goto nla_put_failure;
c9df56b4
JM		 12916
12917 nla_nest_end(msg, attr);
12918
3b7b72ee 12919 genlmsg_end(msg, hdr);
c9df56b4 12920
68eb5503 12921 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12922 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 12923 return;
12924
12925 nla_put_failure:
12926 genlmsg_cancel(msg, hdr);
12927 nlmsg_free(msg);
12928}
12929
947add36
JB		 12930void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12931 const u8 *bssid, bool preauth, gfp_t gfp)
12932{
12933 struct wireless_dev *wdev = dev->ieee80211_ptr;
12934 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12935 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12936
12937 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12938 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12939}
12940EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12941
12942static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12943 struct net_device *netdev,
12944 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 12945 gfp_t gfp,
12946 enum nl80211_commands notif,
12947 u8 count)
5314526b
TP		 12948{
12949 struct sk_buff *msg;
12950 void *hdr;
12951
58050fce 12952 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 12953 if (!msg)
12954 return;
12955
f8d7552e 12956 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 12957 if (!hdr) {
12958 nlmsg_free(msg);
12959 return;
12960 }
12961
683b6d3b
JB		 12962 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12963 goto nla_put_failure;
12964
12965 if (nl80211_send_chandef(msg, chandef))
7eab0f64 12966 goto nla_put_failure;
5314526b 12967
f8d7552e
LC		 12968 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12969 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12970 goto nla_put_failure;
12971
5314526b
TP		 12972 genlmsg_end(msg, hdr);
12973
68eb5503 12974 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12975 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 12976 return;
12977
12978 nla_put_failure:
12979 genlmsg_cancel(msg, hdr);
12980 nlmsg_free(msg);
12981}
12982
947add36
JB		 12983void cfg80211_ch_switch_notify(struct net_device *dev,
12984 struct cfg80211_chan_def *chandef)
84f10708 12985{
947add36
JB		 12986 struct wireless_dev *wdev = dev->ieee80211_ptr;
12987 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12988 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 12989
e487eaeb 12990 ASSERT_WDEV_LOCK(wdev);
947add36 12991
e487eaeb 12992 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 12993
9e0e2961 12994 wdev->chandef = *chandef;
96f55f12 12995 wdev->preset_chandef = *chandef;
f8d7552e
LC		 12996 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12997 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 12998}
12999EXPORT_SYMBOL(cfg80211_ch_switch_notify);
13000
f8d7552e
LC		 13001void cfg80211_ch_switch_started_notify(struct net_device *dev,
13002 struct cfg80211_chan_def *chandef,
13003 u8 count)
13004{
13005 struct wireless_dev *wdev = dev->ieee80211_ptr;
13006 struct wiphy *wiphy = wdev->wiphy;
13007 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13008
13009 trace_cfg80211_ch_switch_started_notify(dev, chandef);
13010
13011 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13012 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
13013}
13014EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
13015
04f39047
SW		 13016void
13017nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 13018 const struct cfg80211_chan_def *chandef,
04f39047
SW		 13019 enum nl80211_radar_event event,
13020 struct net_device *netdev, gfp_t gfp)
13021{
13022 struct sk_buff *msg;
13023 void *hdr;
13024
13025 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13026 if (!msg)
13027 return;
13028
13029 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
13030 if (!hdr) {
13031 nlmsg_free(msg);
13032 return;
13033 }
13034
13035 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
13036 goto nla_put_failure;
13037
13038 /* NOP and radar events don't need a netdev parameter */
13039 if (netdev) {
13040 struct wireless_dev *wdev = netdev->ieee80211_ptr;
13041
13042 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13043 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13044 goto nla_put_failure;
13045 }
13046
13047 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
13048 goto nla_put_failure;
13049
13050 if (nl80211_send_chandef(msg, chandef))
13051 goto nla_put_failure;
13052
9c90a9f6 13053 genlmsg_end(msg, hdr);
04f39047 13054
68eb5503 13055 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13056 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 13057 return;
13058
13059 nla_put_failure:
13060 genlmsg_cancel(msg, hdr);
13061 nlmsg_free(msg);
13062}
13063
7f6cf311
JB		 13064void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
13065 u64 cookie, bool acked, gfp_t gfp)
13066{
13067 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13068 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 13069 struct sk_buff *msg;
13070 void *hdr;
7f6cf311 13071
4ee3e063
BL		 13072 trace_cfg80211_probe_status(dev, addr, cookie, acked);
13073
58050fce 13074 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 13075
7f6cf311
JB		 13076 if (!msg)
13077 return;
13078
13079 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
13080 if (!hdr) {
13081 nlmsg_free(msg);
13082 return;
13083 }
13084
9360ffd1
DM		 13085 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13086 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13087 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
13088 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
13089 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
13090 goto nla_put_failure;
7f6cf311 13091
9c90a9f6 13092 genlmsg_end(msg, hdr);
7f6cf311 13093
68eb5503 13094 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13095 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 13096 return;
13097
13098 nla_put_failure:
13099 genlmsg_cancel(msg, hdr);
13100 nlmsg_free(msg);
13101}
13102EXPORT_SYMBOL(cfg80211_probe_status);
13103
5e760230
JB		 13104void cfg80211_report_obss_beacon(struct wiphy *wiphy,
13105 const u8 *frame, size_t len,
37c73b5f 13106 int freq, int sig_dbm)
5e760230 13107{
f26cbf40 13108 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 13109 struct sk_buff *msg;
13110 void *hdr;
37c73b5f 13111 struct cfg80211_beacon_registration *reg;
5e760230 13112
4ee3e063
BL		 13113 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
13114
37c73b5f
BG		 13115 spin_lock_bh(&rdev->beacon_registrations_lock);
13116 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
13117 msg = nlmsg_new(len + 100, GFP_ATOMIC);
13118 if (!msg) {
13119 spin_unlock_bh(&rdev->beacon_registrations_lock);
13120 return;
13121 }
5e760230 13122
37c73b5f
BG		 13123 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
13124 if (!hdr)
13125 goto nla_put_failure;
5e760230 13126
37c73b5f
BG		 13127 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13128 (freq &&
13129 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
13130 (sig_dbm &&
13131 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
13132 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
13133 goto nla_put_failure;
5e760230 13134
37c73b5f 13135 genlmsg_end(msg, hdr);
5e760230 13136
37c73b5f
BG		 13137 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
13138 }
13139 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 13140 return;
13141
13142 nla_put_failure:
37c73b5f
BG		 13143 spin_unlock_bh(&rdev->beacon_registrations_lock);
13144 if (hdr)
13145 genlmsg_cancel(msg, hdr);
5e760230
JB		 13146 nlmsg_free(msg);
13147}
13148EXPORT_SYMBOL(cfg80211_report_obss_beacon);
13149
cd8f7cb4 13150#ifdef CONFIG_PM
8cd4d456
LC		 13151static int cfg80211_net_detect_results(struct sk_buff *msg,
13152 struct cfg80211_wowlan_wakeup *wakeup)
13153{
13154 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
13155 struct nlattr *nl_results, *nl_match, *nl_freqs;
13156 int i, j;
13157
13158 nl_results = nla_nest_start(
13159 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
13160 if (!nl_results)
13161 return -EMSGSIZE;
13162
13163 for (i = 0; i < nd->n_matches; i++) {
13164 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
13165
13166 nl_match = nla_nest_start(msg, i);
13167 if (!nl_match)
13168 break;
13169
13170 /* The SSID attribute is optional in nl80211, but for
13171 * simplicity reasons it's always present in the
13172 * cfg80211 structure. If a driver can't pass the
13173 * SSID, that needs to be changed. A zero length SSID
13174 * is still a valid SSID (wildcard), so it cannot be
13175 * used for this purpose.
13176 */
13177 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
13178 match->ssid.ssid)) {
13179 nla_nest_cancel(msg, nl_match);
13180 goto out;
13181 }
13182
13183 if (match->n_channels) {
13184 nl_freqs = nla_nest_start(
13185 msg, NL80211_ATTR_SCAN_FREQUENCIES);
13186 if (!nl_freqs) {
13187 nla_nest_cancel(msg, nl_match);
13188 goto out;
13189 }
13190
13191 for (j = 0; j < match->n_channels; j++) {
5528fae8 13192 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 13193 nla_nest_cancel(msg, nl_freqs);
13194 nla_nest_cancel(msg, nl_match);
13195 goto out;
13196 }
13197 }
13198
13199 nla_nest_end(msg, nl_freqs);
13200 }
13201
13202 nla_nest_end(msg, nl_match);
13203 }
13204
13205out:
13206 nla_nest_end(msg, nl_results);
13207 return 0;
13208}
13209
cd8f7cb4
JB		 13210void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
13211 struct cfg80211_wowlan_wakeup *wakeup,
13212 gfp_t gfp)
13213{
f26cbf40 13214 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 13215 struct sk_buff *msg;
13216 void *hdr;
9c90a9f6 13217 int size = 200;
cd8f7cb4
JB		 13218
13219 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13220
13221 if (wakeup)
13222 size += wakeup->packet_present_len;
13223
13224 msg = nlmsg_new(size, gfp);
13225 if (!msg)
13226 return;
13227
13228 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13229 if (!hdr)
13230 goto free_msg;
13231
13232 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13233 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13234 goto free_msg;
13235
13236 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13237 wdev->netdev->ifindex))
13238 goto free_msg;
13239
13240 if (wakeup) {
13241 struct nlattr *reasons;
13242
13243 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 13244 if (!reasons)
13245 goto free_msg;
cd8f7cb4
JB		 13246
13247 if (wakeup->disconnect &&
13248 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13249 goto free_msg;
13250 if (wakeup->magic_pkt &&
13251 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13252 goto free_msg;
13253 if (wakeup->gtk_rekey_failure &&
13254 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13255 goto free_msg;
13256 if (wakeup->eap_identity_req &&
13257 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13258 goto free_msg;
13259 if (wakeup->four_way_handshake &&
13260 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13261 goto free_msg;
13262 if (wakeup->rfkill_release &&
13263 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13264 goto free_msg;
13265
13266 if (wakeup->pattern_idx >= 0 &&
13267 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13268 wakeup->pattern_idx))
13269 goto free_msg;
13270
ae917c9f
JB		 13271 if (wakeup->tcp_match &&
13272 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13273 goto free_msg;
2a0e047e 13274
ae917c9f
JB		 13275 if (wakeup->tcp_connlost &&
13276 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13277 goto free_msg;
2a0e047e 13278
ae917c9f
JB		 13279 if (wakeup->tcp_nomoretokens &&
13280 nla_put_flag(msg,
13281 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13282 goto free_msg;
2a0e047e 13283
cd8f7cb4
JB		 13284 if (wakeup->packet) {
13285 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13286 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13287
13288 if (!wakeup->packet_80211) {
13289 pkt_attr =
13290 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13291 len_attr =
13292 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13293 }
13294
13295 if (wakeup->packet_len &&
13296 nla_put_u32(msg, len_attr, wakeup->packet_len))
13297 goto free_msg;
13298
13299 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13300 wakeup->packet))
13301 goto free_msg;
13302 }
13303
8cd4d456
LC		 13304 if (wakeup->net_detect &&
13305 cfg80211_net_detect_results(msg, wakeup))
13306 goto free_msg;
13307
cd8f7cb4
JB		 13308 nla_nest_end(msg, reasons);
13309 }
13310
9c90a9f6 13311 genlmsg_end(msg, hdr);
cd8f7cb4 13312
68eb5503 13313 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13314 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 13315 return;
13316
13317 free_msg:
13318 nlmsg_free(msg);
13319}
13320EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13321#endif
13322
3475b094
JM		 13323void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13324 enum nl80211_tdls_operation oper,
13325 u16 reason_code, gfp_t gfp)
13326{
13327 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13328 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 13329 struct sk_buff *msg;
13330 void *hdr;
3475b094
JM		 13331
13332 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13333 reason_code);
13334
13335 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13336 if (!msg)
13337 return;
13338
13339 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13340 if (!hdr) {
13341 nlmsg_free(msg);
13342 return;
13343 }
13344
13345 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13346 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13347 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13348 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13349 (reason_code > 0 &&
13350 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13351 goto nla_put_failure;
13352
9c90a9f6 13353 genlmsg_end(msg, hdr);
3475b094 13354
68eb5503 13355 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13356 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 13357 return;
13358
13359 nla_put_failure:
13360 genlmsg_cancel(msg, hdr);
13361 nlmsg_free(msg);
13362}
13363EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13364
026331c4
JM		 13365static int nl80211_netlink_notify(struct notifier_block * nb,
13366 unsigned long state,
13367 void *_notify)
13368{
13369 struct netlink_notify *notify = _notify;
13370 struct cfg80211_registered_device *rdev;
13371 struct wireless_dev *wdev;
37c73b5f 13372 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 13373
13374 if (state != NETLINK_URELEASE)
13375 return NOTIFY_DONE;
13376
13377 rcu_read_lock();
13378
5e760230 13379 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 13380 bool schedule_destroy_work = false;
93a1e86c
JR		 13381 bool schedule_scan_stop = false;
13382 struct cfg80211_sched_scan_request *sched_scan_req =
13383 rcu_dereference(rdev->sched_scan_req);
13384
13385 if (sched_scan_req && notify->portid &&
13386 sched_scan_req->owner_nlportid == notify->portid)
13387 schedule_scan_stop = true;
78f22b6a
JB		 13388
13389 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 13390 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 13391
78f22b6a
JB		 13392 if (wdev->owner_nlportid == notify->portid)
13393 schedule_destroy_work = true;
13394 }
13395
37c73b5f
BG		 13396 spin_lock_bh(&rdev->beacon_registrations_lock);
13397 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13398 list) {
13399 if (reg->nlportid == notify->portid) {
13400 list_del(&reg->list);
13401 kfree(reg);
13402 break;
13403 }
13404 }
13405 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 13406
13407 if (schedule_destroy_work) {
13408 struct cfg80211_iface_destroy *destroy;
13409
13410 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13411 if (destroy) {
13412 destroy->nlportid = notify->portid;
13413 spin_lock(&rdev->destroy_list_lock);
13414 list_add(&destroy->list, &rdev->destroy_list);
13415 spin_unlock(&rdev->destroy_list_lock);
13416 schedule_work(&rdev->destroy_work);
13417 }
93a1e86c
JR		 13418 } else if (schedule_scan_stop) {
13419 sched_scan_req->owner_nlportid = 0;
13420
13421 if (rdev->ops->sched_scan_stop &&
13422 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13423 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 13424 }
5e760230 13425 }
026331c4
JM		 13426
13427 rcu_read_unlock();
13428
05050753
I		 13429 /*
13430 * It is possible that the user space process that is controlling the
13431 * indoor setting disappeared, so notify the regulatory core.
13432 */
13433 regulatory_netlink_notify(notify->portid);
6784c7db 13434 return NOTIFY_OK;
026331c4
JM		 13435}
13436
13437static struct notifier_block nl80211_netlink_notifier = {
13438 .notifier_call = nl80211_netlink_notify,
13439};
13440
355199e0
JM		 13441void cfg80211_ft_event(struct net_device *netdev,
13442 struct cfg80211_ft_event_params *ft_event)
13443{
13444 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 13445 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 13446 struct sk_buff *msg;
13447 void *hdr;
355199e0
JM		 13448
13449 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13450
13451 if (!ft_event->target_ap)
13452 return;
13453
13454 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13455 if (!msg)
13456 return;
13457
13458 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 13459 if (!hdr)
13460 goto out;
355199e0 13461
ae917c9f
JB		 13462 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13463 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13464 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13465 goto out;
355199e0 13466
ae917c9f
JB		 13467 if (ft_event->ies &&
13468 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13469 goto out;
13470 if (ft_event->ric_ies &&
13471 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13472 ft_event->ric_ies))
13473 goto out;
355199e0 13474
9c90a9f6 13475 genlmsg_end(msg, hdr);
355199e0 13476
68eb5503 13477 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13478 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 13479 return;
13480 out:
13481 nlmsg_free(msg);
355199e0
JM		 13482}
13483EXPORT_SYMBOL(cfg80211_ft_event);
13484
5de17984
AS		 13485void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13486{
13487 struct cfg80211_registered_device *rdev;
13488 struct sk_buff *msg;
13489 void *hdr;
13490 u32 nlportid;
13491
f26cbf40 13492 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 13493 if (!rdev->crit_proto_nlportid)
13494 return;
13495
13496 nlportid = rdev->crit_proto_nlportid;
13497 rdev->crit_proto_nlportid = 0;
13498
13499 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13500 if (!msg)
13501 return;
13502
13503 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13504 if (!hdr)
13505 goto nla_put_failure;
13506
13507 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13508 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13509 goto nla_put_failure;
13510
13511 genlmsg_end(msg, hdr);
13512
13513 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13514 return;
13515
13516 nla_put_failure:
13517 if (hdr)
13518 genlmsg_cancel(msg, hdr);
13519 nlmsg_free(msg);
13520
13521}
13522EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13523
348baf0e
JB		 13524void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13525{
13526 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13527 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 13528 struct sk_buff *msg;
13529 void *hdr;
13530
13531 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13532 if (!msg)
13533 return;
13534
13535 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13536 if (!hdr)
13537 goto out;
13538
13539 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13540 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
13541 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13542 goto out;
13543
13544 genlmsg_end(msg, hdr);
13545
13546 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13547 NL80211_MCGRP_MLME, GFP_KERNEL);
13548 return;
13549 out:
13550 nlmsg_free(msg);
13551}
13552
55682965
JB		 13553/* initialisation/exit functions */
13554
13555int nl80211_init(void)
13556{
0d63cbb5 13557 int err;
55682965 13558
2a94fe48
JB		 13559 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13560 nl80211_mcgrps);
55682965
JB		 13561 if (err)
13562 return err;
13563
026331c4
JM		 13564 err = netlink_register_notifier(&nl80211_netlink_notifier);
13565 if (err)
13566 goto err_out;
13567
55682965
JB		 13568 return 0;
13569 err_out:
13570 genl_unregister_family(&nl80211_fam);
13571 return err;
13572}
13573
13574void nl80211_exit(void)
13575{
026331c4 13576 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 13577 genl_unregister_family(&nl80211_fam);
13578}
Linux kernel - Deliverables
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