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Merge tag 'mac80211-next-for-davem-2016-09-16' of git://git.kernel.org/pub/scm/linux...
[mirror_ubuntu-focal-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
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
53873f13 106 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
89a54e48
JB		 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 */
53873f13 152 list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
89a54e48
JB		 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]);
7a087e74 170
7f2b8562 171 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 172 if (netdev) {
173 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 174 tmp = wiphy_to_rdev(
175 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 176 else
177 tmp = NULL;
178
7fee4778
JB		 179 /* not wireless device -- return error */
180 if (!tmp)
181 return ERR_PTR(-EINVAL);
182
183 /* mismatch -- return error */
184 if (rdev && tmp != rdev)
185 return ERR_PTR(-EINVAL);
186
187 rdev = tmp;
a9455408 188 }
a9455408 189 }
a9455408 190
4f7eff10
JB		 191 if (!rdev)
192 return ERR_PTR(-ENODEV);
a9455408 193
4f7eff10
JB		 194 if (netns != wiphy_net(&rdev->wiphy))
195 return ERR_PTR(-ENODEV);
196
197 return rdev;
a9455408
JB		 198}
199
200/*
201 * This function returns a pointer to the driver
202 * that the genl_info item that is passed refers to.
a9455408
JB		 203 *
204 * The result of this can be a PTR_ERR and hence must
205 * be checked with IS_ERR() for errors.
206 */
207static struct cfg80211_registered_device *
4f7eff10 208cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 209{
5fe231e8 210 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 211}
212
55682965 213/* policy for the attributes */
8cd4d456 214static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 215 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
216 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 217 .len = 20-1 },
31888487 218 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 219
72bdcf34 220 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 221 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 222 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
223 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
224 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
225
b9a5f8ca
JM		 226 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
227 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
228 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
229 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 230 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 231 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 232
233 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
234 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
235 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 236
e007b857
EP		 237 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
238 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 239
b9454e83 240 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 241 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
242 .len = WLAN_MAX_KEY_LEN },
243 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
244 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
245 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 246 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 247 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 248
249 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
250 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
251 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_DATA_LEN },
253 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
254 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 255 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
256 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
257 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
258 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
259 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 260 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 261 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 262 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 263 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 264 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 265 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 266
b2e1b302
LR		 267 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
268 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
269
9f1ba906
JM		 270 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
271 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
272 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 273 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
274 .len = NL80211_MAX_SUPP_RATES },
50b12f59 275 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 276
24bdd9f4 277 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 278 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 279
6c739419 280 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 281
282 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
283 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
284 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 285 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
286 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 287
288 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
289 .len = IEEE80211_MAX_SSID_LEN },
290 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
291 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 292 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 293 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 294 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 295 [NL80211_ATTR_STA_FLAGS2] = {
296 .len = sizeof(struct nl80211_sta_flag_update),
297 },
3f77316c 298 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 299 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
300 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 301 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
302 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
303 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 304 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 305 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 306 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
307 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 308 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
309 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 310 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 311 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
312 .len = IEEE80211_MAX_DATA_LEN },
313 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 314 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 315 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 316 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 317 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 318 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
319 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 320 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 321 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
322 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 323 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 324 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 325 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 326 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 327 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 328 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 329 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 330 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 331 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 332 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
333 .len = IEEE80211_MAX_DATA_LEN },
334 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
335 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 336 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 337 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 338 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 339 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
341 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
342 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
343 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 344 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 345 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 346 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
347 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 348 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 349 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
350 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
351 .len = NL80211_HT_CAPABILITY_LEN
352 },
1d9d9213 353 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 354 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 355 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 356 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 357 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 358 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 359 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 360 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 361 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
362 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 363 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
364 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 365 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
366 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 367 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 368 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
369 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
370 .len = NL80211_VHT_CAPABILITY_LEN,
371 },
355199e0
JM		 372 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
373 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
374 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 375 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 376 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
377 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
378 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 379 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
380 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 381 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
382 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 383 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 384 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 385 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
386 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
387 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 388 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
389 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 390 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
391 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 392 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
18e5ca65 393 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 394 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 395 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 396 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
397 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
398 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 399 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 400 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 401 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
4b681c82 402 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
9c748934 403 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
05050753 404 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
34d50519 405 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
38de03d2 406 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
17b94247 407 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
c6e6a0c8
AE		 408 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
409 .len = VHT_MUMIMO_GROUPS_DATA_LEN
410 },
411 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
55682965
JB		 412};
413
e31b8213 414/* policy for the key attributes */
b54452b0 415static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 416 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 417 [NL80211_KEY_IDX] = { .type = NLA_U8 },
418 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 419 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 420 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
421 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 422 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 423 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
424};
425
426/* policy for the key default flags */
427static const struct nla_policy
428nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
429 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
430 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 431};
432
ff1b6e69
JB		 433/* policy for WoWLAN attributes */
434static const struct nla_policy
435nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
436 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
437 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
438 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
439 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 440 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
441 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
442 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
443 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 444 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 445 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 446};
447
448static const struct nla_policy
449nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
450 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
451 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
452 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
453 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
454 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
455 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
456 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
457 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
458 },
459 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
460 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
461 },
462 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
463 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
464 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 465};
466
be29b99a
AK		 467/* policy for coalesce rule attributes */
468static const struct nla_policy
469nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
470 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
471 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
472 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
473};
474
e5497d76
JB		 475/* policy for GTK rekey offload attributes */
476static const struct nla_policy
477nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
478 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
479 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
480 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
481};
482
a1f1c21c
LC		 483static const struct nla_policy
484nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 485 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 486 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 487 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 488};
489
3b06d277
AS		 490static const struct nla_policy
491nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
492 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
493 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
494};
495
38de03d2
AS		 496static const struct nla_policy
497nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
498 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
499 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
500 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
501 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
502 },
503};
504
97990a06
JB		 505static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
506 struct netlink_callback *cb,
507 struct cfg80211_registered_device **rdev,
508 struct wireless_dev **wdev)
a043897a 509{
97990a06 510 int err;
a043897a 511
97990a06 512 rtnl_lock();
a043897a 513
97990a06
JB		 514 if (!cb->args[0]) {
515 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
516 nl80211_fam.attrbuf, nl80211_fam.maxattr,
517 nl80211_policy);
518 if (err)
519 goto out_unlock;
67748893 520
97990a06
JB		 521 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
522 nl80211_fam.attrbuf);
523 if (IS_ERR(*wdev)) {
524 err = PTR_ERR(*wdev);
525 goto out_unlock;
526 }
f26cbf40 527 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 528 /* 0 is the first index - add 1 to parse only once */
529 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 530 cb->args[1] = (*wdev)->identifier;
531 } else {
c319d50b
JB		 532 /* subtract the 1 again here */
533 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 534 struct wireless_dev *tmp;
67748893 535
97990a06
JB		 536 if (!wiphy) {
537 err = -ENODEV;
538 goto out_unlock;
539 }
f26cbf40 540 *rdev = wiphy_to_rdev(wiphy);
97990a06 541 *wdev = NULL;
67748893 542
53873f13 543 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
97990a06
JB		 544 if (tmp->identifier == cb->args[1]) {
545 *wdev = tmp;
546 break;
547 }
548 }
67748893 549
97990a06
JB		 550 if (!*wdev) {
551 err = -ENODEV;
552 goto out_unlock;
553 }
67748893
JB		 554 }
555
67748893 556 return 0;
97990a06 557 out_unlock:
67748893
JB		 558 rtnl_unlock();
559 return err;
560}
561
97990a06 562static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 563{
67748893
JB		 564 rtnl_unlock();
565}
566
f4a11bb0
JB		 567/* IE validation */
568static bool is_valid_ie_attr(const struct nlattr *attr)
569{
570 const u8 *pos;
571 int len;
572
573 if (!attr)
574 return true;
575
576 pos = nla_data(attr);
577 len = nla_len(attr);
578
579 while (len) {
580 u8 elemlen;
581
582 if (len < 2)
583 return false;
584 len -= 2;
585
586 elemlen = pos[1];
587 if (elemlen > len)
588 return false;
589
590 len -= elemlen;
591 pos += 2 + elemlen;
592 }
593
594 return true;
595}
596
55682965 597/* message building helper */
15e47304 598static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 599 int flags, u8 cmd)
600{
601 /* since there is no private header just add the generic one */
15e47304 602 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 603}
604
5dab3b8a 605static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 606 struct ieee80211_channel *chan,
607 bool large)
5dab3b8a 608{
ea077c1c
RL		 609 /* Some channels must be completely excluded from the
610 * list to protect old user-space tools from breaking
611 */
612 if (!large && chan->flags &
613 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
614 return 0;
615
9360ffd1
DM		 616 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
617 chan->center_freq))
618 goto nla_put_failure;
5dab3b8a 619
9360ffd1
DM		 620 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
621 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
622 goto nla_put_failure;
8fe02e16
LR		 623 if (chan->flags & IEEE80211_CHAN_NO_IR) {
624 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
625 goto nla_put_failure;
626 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
627 goto nla_put_failure;
628 }
cdc89b97
JB		 629 if (chan->flags & IEEE80211_CHAN_RADAR) {
630 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
631 goto nla_put_failure;
632 if (large) {
633 u32 time;
634
635 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
636
637 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
638 chan->dfs_state))
639 goto nla_put_failure;
640 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
641 time))
642 goto nla_put_failure;
089027e5
JD		 643 if (nla_put_u32(msg,
644 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
645 chan->dfs_cac_ms))
646 goto nla_put_failure;
cdc89b97
JB		 647 }
648 }
5dab3b8a 649
fe1abafd
JB		 650 if (large) {
651 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
652 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
653 goto nla_put_failure;
654 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
655 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
656 goto nla_put_failure;
657 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
658 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
659 goto nla_put_failure;
660 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
661 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
662 goto nla_put_failure;
570dbde1
DS		 663 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
664 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
665 goto nla_put_failure;
06f207fc
AN		 666 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
667 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 668 goto nla_put_failure;
ea077c1c
RL		 669 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
670 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
671 goto nla_put_failure;
672 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
673 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
674 goto nla_put_failure;
fe1abafd
JB		 675 }
676
9360ffd1
DM		 677 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
678 DBM_TO_MBM(chan->max_power)))
679 goto nla_put_failure;
5dab3b8a
LR		 680
681 return 0;
682
683 nla_put_failure:
684 return -ENOBUFS;
685}
686
55682965
JB		 687/* netlink command implementations */
688
b9454e83
JB		 689struct key_parse {
690 struct key_params p;
691 int idx;
e31b8213 692 int type;
b9454e83 693 bool def, defmgmt;
dbd2fd65 694 bool def_uni, def_multi;
b9454e83
JB		 695};
696
697static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
698{
699 struct nlattr *tb[NL80211_KEY_MAX + 1];
700 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
701 nl80211_key_policy);
702 if (err)
703 return err;
704
705 k->def = !!tb[NL80211_KEY_DEFAULT];
706 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
707
dbd2fd65
JB		 708 if (k->def) {
709 k->def_uni = true;
710 k->def_multi = true;
711 }
712 if (k->defmgmt)
713 k->def_multi = true;
714
b9454e83
JB		 715 if (tb[NL80211_KEY_IDX])
716 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
717
718 if (tb[NL80211_KEY_DATA]) {
719 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
720 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
721 }
722
723 if (tb[NL80211_KEY_SEQ]) {
724 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
725 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
726 }
727
728 if (tb[NL80211_KEY_CIPHER])
729 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
730
e31b8213
JB		 731 if (tb[NL80211_KEY_TYPE]) {
732 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
733 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
734 return -EINVAL;
735 }
736
dbd2fd65
JB		 737 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
738 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
7a087e74 739
2da8f419
JB		 740 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
741 tb[NL80211_KEY_DEFAULT_TYPES],
742 nl80211_key_default_policy);
dbd2fd65
JB		 743 if (err)
744 return err;
745
746 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
747 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
748 }
749
b9454e83
JB		 750 return 0;
751}
752
753static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
754{
755 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
756 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
757 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
758 }
759
760 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
761 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
762 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
763 }
764
765 if (info->attrs[NL80211_ATTR_KEY_IDX])
766 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
767
768 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
769 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
770
771 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
772 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
773
dbd2fd65
JB		 774 if (k->def) {
775 k->def_uni = true;
776 k->def_multi = true;
777 }
778 if (k->defmgmt)
779 k->def_multi = true;
780
e31b8213
JB		 781 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
782 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
783 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
784 return -EINVAL;
785 }
786
dbd2fd65
JB		 787 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
788 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
789 int err = nla_parse_nested(
790 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
791 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
792 nl80211_key_default_policy);
793 if (err)
794 return err;
795
796 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
797 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
798 }
799
b9454e83
JB		 800 return 0;
801}
802
803static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
804{
805 int err;
806
807 memset(k, 0, sizeof(*k));
808 k->idx = -1;
e31b8213 809 k->type = -1;
b9454e83
JB		 810
811 if (info->attrs[NL80211_ATTR_KEY])
812 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
813 else
814 err = nl80211_parse_key_old(info, k);
815
816 if (err)
817 return err;
818
819 if (k->def && k->defmgmt)
820 return -EINVAL;
821
dbd2fd65
JB		 822 if (k->defmgmt) {
823 if (k->def_uni || !k->def_multi)
824 return -EINVAL;
825 }
826
b9454e83
JB		 827 if (k->idx != -1) {
828 if (k->defmgmt) {
829 if (k->idx < 4 || k->idx > 5)
830 return -EINVAL;
831 } else if (k->def) {
832 if (k->idx < 0 || k->idx > 3)
833 return -EINVAL;
834 } else {
835 if (k->idx < 0 || k->idx > 5)
836 return -EINVAL;
837 }
838 }
839
840 return 0;
841}
842
fffd0934
JB		 843static struct cfg80211_cached_keys *
844nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 845 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 846{
847 struct key_parse parse;
848 struct nlattr *key;
849 struct cfg80211_cached_keys *result;
850 int rem, err, def = 0;
f1c1f17a
JB		 851 bool have_key = false;
852
853 nla_for_each_nested(key, keys, rem) {
854 have_key = true;
855 break;
856 }
857
858 if (!have_key)
859 return NULL;
fffd0934
JB		 860
861 result = kzalloc(sizeof(*result), GFP_KERNEL);
862 if (!result)
863 return ERR_PTR(-ENOMEM);
864
865 result->def = -1;
fffd0934
JB		 866
867 nla_for_each_nested(key, keys, rem) {
868 memset(&parse, 0, sizeof(parse));
869 parse.idx = -1;
870
871 err = nl80211_parse_key_new(key, &parse);
872 if (err)
873 goto error;
874 err = -EINVAL;
875 if (!parse.p.key)
876 goto error;
42ee231c 877 if (parse.idx < 0 || parse.idx > 3)
fffd0934
JB		 878 goto error;
879 if (parse.def) {
880 if (def)
881 goto error;
882 def = 1;
883 result->def = parse.idx;
dbd2fd65
JB		 884 if (!parse.def_uni || !parse.def_multi)
885 goto error;
fffd0934
JB		 886 } else if (parse.defmgmt)
887 goto error;
888 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 889 parse.idx, false, NULL);
fffd0934
JB		 890 if (err)
891 goto error;
386b1f27
JB		 892 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
893 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
894 err = -EINVAL;
895 goto error;
896 }
fffd0934
JB		 897 result->params[parse.idx].cipher = parse.p.cipher;
898 result->params[parse.idx].key_len = parse.p.key_len;
899 result->params[parse.idx].key = result->data[parse.idx];
900 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee 901
386b1f27
JB		 902 /* must be WEP key if we got here */
903 if (no_ht)
904 *no_ht = true;
fffd0934
JB		 905 }
906
f1c1f17a
JB		 907 if (result->def < 0) {
908 err = -EINVAL;
909 goto error;
910 }
911
fffd0934
JB		 912 return result;
913 error:
914 kfree(result);
915 return ERR_PTR(err);
916}
917
918static int nl80211_key_allowed(struct wireless_dev *wdev)
919{
920 ASSERT_WDEV_LOCK(wdev);
921
fffd0934
JB		 922 switch (wdev->iftype) {
923 case NL80211_IFTYPE_AP:
924 case NL80211_IFTYPE_AP_VLAN:
074ac8df 925 case NL80211_IFTYPE_P2P_GO:
ff973af7 926 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 927 break;
928 case NL80211_IFTYPE_ADHOC:
fffd0934 929 case NL80211_IFTYPE_STATION:
074ac8df 930 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 931 if (!wdev->current_bss)
fffd0934
JB		 932 return -ENOLINK;
933 break;
de4fcbad 934 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 935 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 936 case NL80211_IFTYPE_MONITOR:
937 case NL80211_IFTYPE_P2P_DEVICE:
938 case NL80211_IFTYPE_WDS:
939 case NUM_NL80211_IFTYPES:
fffd0934
JB		 940 return -EINVAL;
941 }
942
943 return 0;
944}
945
664834de
JM		 946static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
947 struct nlattr *tb)
948{
949 struct ieee80211_channel *chan;
950
951 if (tb == NULL)
952 return NULL;
953 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
954 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
955 return NULL;
956 return chan;
957}
958
7527a782
JB		 959static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
960{
961 struct nlattr *nl_modes = nla_nest_start(msg, attr);
962 int i;
963
964 if (!nl_modes)
965 goto nla_put_failure;
966
967 i = 0;
968 while (ifmodes) {
9360ffd1
DM		 969 if ((ifmodes & 1) && nla_put_flag(msg, i))
970 goto nla_put_failure;
7527a782
JB		 971 ifmodes >>= 1;
972 i++;
973 }
974
975 nla_nest_end(msg, nl_modes);
976 return 0;
977
978nla_put_failure:
979 return -ENOBUFS;
980}
981
982static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 983 struct sk_buff *msg,
984 bool large)
7527a782
JB		 985{
986 struct nlattr *nl_combis;
987 int i, j;
988
989 nl_combis = nla_nest_start(msg,
990 NL80211_ATTR_INTERFACE_COMBINATIONS);
991 if (!nl_combis)
992 goto nla_put_failure;
993
994 for (i = 0; i < wiphy->n_iface_combinations; i++) {
995 const struct ieee80211_iface_combination *c;
996 struct nlattr *nl_combi, *nl_limits;
997
998 c = &wiphy->iface_combinations[i];
999
1000 nl_combi = nla_nest_start(msg, i + 1);
1001 if (!nl_combi)
1002 goto nla_put_failure;
1003
1004 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1005 if (!nl_limits)
1006 goto nla_put_failure;
1007
1008 for (j = 0; j < c->n_limits; j++) {
1009 struct nlattr *nl_limit;
1010
1011 nl_limit = nla_nest_start(msg, j + 1);
1012 if (!nl_limit)
1013 goto nla_put_failure;
9360ffd1
DM		 1014 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1015 c->limits[j].max))
1016 goto nla_put_failure;
7527a782
JB		 1017 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1018 c->limits[j].types))
1019 goto nla_put_failure;
1020 nla_nest_end(msg, nl_limit);
1021 }
1022
1023 nla_nest_end(msg, nl_limits);
1024
9360ffd1
DM		 1025 if (c->beacon_int_infra_match &&
1026 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1027 goto nla_put_failure;
1028 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1029 c->num_different_channels) ||
1030 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1031 c->max_interfaces))
1032 goto nla_put_failure;
cdc89b97 1033 if (large &&
8c48b50a
FF		 1034 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1035 c->radar_detect_widths) ||
1036 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1037 c->radar_detect_regions)))
cdc89b97 1038 goto nla_put_failure;
7527a782
JB		 1039
1040 nla_nest_end(msg, nl_combi);
1041 }
1042
1043 nla_nest_end(msg, nl_combis);
1044
1045 return 0;
1046nla_put_failure:
1047 return -ENOBUFS;
1048}
1049
3713b4e3 1050#ifdef CONFIG_PM
b56cf720
JB		 1051static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1052 struct sk_buff *msg)
1053{
964dc9e2 1054 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1055 struct nlattr *nl_tcp;
1056
1057 if (!tcp)
1058 return 0;
1059
1060 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1061 if (!nl_tcp)
1062 return -ENOBUFS;
1063
1064 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1065 tcp->data_payload_max))
1066 return -ENOBUFS;
1067
1068 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1069 tcp->data_payload_max))
1070 return -ENOBUFS;
1071
1072 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1073 return -ENOBUFS;
1074
1075 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1076 sizeof(*tcp->tok), tcp->tok))
1077 return -ENOBUFS;
1078
1079 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1080 tcp->data_interval_max))
1081 return -ENOBUFS;
1082
1083 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1084 tcp->wake_payload_max))
1085 return -ENOBUFS;
1086
1087 nla_nest_end(msg, nl_tcp);
1088 return 0;
1089}
1090
3713b4e3 1091static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1092 struct cfg80211_registered_device *rdev,
b56cf720 1093 bool large)
55682965 1094{
3713b4e3 1095 struct nlattr *nl_wowlan;
55682965 1096
1b8ec87a 1097 if (!rdev->wiphy.wowlan)
3713b4e3 1098 return 0;
55682965 1099
3713b4e3
JB		 1100 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1101 if (!nl_wowlan)
1102 return -ENOBUFS;
9360ffd1 1103
1b8ec87a 1104 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1105 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1106 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1107 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1108 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1109 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1110 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1111 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1112 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1113 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1114 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1115 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1116 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1117 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1118 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1119 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1120 return -ENOBUFS;
9360ffd1 1121
1b8ec87a 1122 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1123 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1124 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1125 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1126 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1127 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1128 };
9360ffd1 1129
3713b4e3
JB		 1130 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1131 sizeof(pat), &pat))
1132 return -ENOBUFS;
1133 }
9360ffd1 1134
75453ccb
LC		 1135 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1136 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1137 rdev->wiphy.wowlan->max_nd_match_sets))
1138 return -ENOBUFS;
1139
1b8ec87a 1140 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1141 return -ENOBUFS;
1142
3713b4e3 1143 nla_nest_end(msg, nl_wowlan);
9360ffd1 1144
3713b4e3
JB		 1145 return 0;
1146}
1147#endif
9360ffd1 1148
be29b99a 1149static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1150 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1151{
1152 struct nl80211_coalesce_rule_support rule;
1153
1b8ec87a 1154 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1155 return 0;
1156
1b8ec87a
ZG		 1157 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1158 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1159 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1160 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1161 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1162 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1163
1164 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1165 return -ENOBUFS;
1166
1167 return 0;
1168}
1169
3713b4e3
JB		 1170static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1171 struct ieee80211_supported_band *sband)
1172{
1173 struct nlattr *nl_rates, *nl_rate;
1174 struct ieee80211_rate *rate;
1175 int i;
87bbbe22 1176
3713b4e3
JB		 1177 /* add HT info */
1178 if (sband->ht_cap.ht_supported &&
1179 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1180 sizeof(sband->ht_cap.mcs),
1181 &sband->ht_cap.mcs) ||
1182 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1183 sband->ht_cap.cap) ||
1184 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1185 sband->ht_cap.ampdu_factor) ||
1186 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1187 sband->ht_cap.ampdu_density)))
1188 return -ENOBUFS;
afe0cbf8 1189
3713b4e3
JB		 1190 /* add VHT info */
1191 if (sband->vht_cap.vht_supported &&
1192 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1193 sizeof(sband->vht_cap.vht_mcs),
1194 &sband->vht_cap.vht_mcs) ||
1195 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1196 sband->vht_cap.cap)))
1197 return -ENOBUFS;
f59ac048 1198
3713b4e3
JB		 1199 /* add bitrates */
1200 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1201 if (!nl_rates)
1202 return -ENOBUFS;
ee688b00 1203
3713b4e3
JB		 1204 for (i = 0; i < sband->n_bitrates; i++) {
1205 nl_rate = nla_nest_start(msg, i);
1206 if (!nl_rate)
1207 return -ENOBUFS;
ee688b00 1208
3713b4e3
JB		 1209 rate = &sband->bitrates[i];
1210 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1211 rate->bitrate))
1212 return -ENOBUFS;
1213 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1214 nla_put_flag(msg,
1215 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1216 return -ENOBUFS;
ee688b00 1217
3713b4e3
JB		 1218 nla_nest_end(msg, nl_rate);
1219 }
d51626df 1220
3713b4e3 1221 nla_nest_end(msg, nl_rates);
bf0c111e 1222
3713b4e3
JB		 1223 return 0;
1224}
ee688b00 1225
3713b4e3
JB		 1226static int
1227nl80211_send_mgmt_stypes(struct sk_buff *msg,
1228 const struct ieee80211_txrx_stypes *mgmt_stypes)
1229{
1230 u16 stypes;
1231 struct nlattr *nl_ftypes, *nl_ifs;
1232 enum nl80211_iftype ift;
1233 int i;
ee688b00 1234
3713b4e3
JB		 1235 if (!mgmt_stypes)
1236 return 0;
5dab3b8a 1237
3713b4e3
JB		 1238 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1239 if (!nl_ifs)
1240 return -ENOBUFS;
e2f367f2 1241
3713b4e3
JB		 1242 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1243 nl_ftypes = nla_nest_start(msg, ift);
1244 if (!nl_ftypes)
1245 return -ENOBUFS;
1246 i = 0;
1247 stypes = mgmt_stypes[ift].tx;
1248 while (stypes) {
1249 if ((stypes & 1) &&
1250 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1251 (i << 4) | IEEE80211_FTYPE_MGMT))
1252 return -ENOBUFS;
1253 stypes >>= 1;
1254 i++;
ee688b00 1255 }
3713b4e3
JB		 1256 nla_nest_end(msg, nl_ftypes);
1257 }
ee688b00 1258
3713b4e3 1259 nla_nest_end(msg, nl_ifs);
ee688b00 1260
3713b4e3
JB		 1261 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1262 if (!nl_ifs)
1263 return -ENOBUFS;
ee688b00 1264
3713b4e3
JB		 1265 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1266 nl_ftypes = nla_nest_start(msg, ift);
1267 if (!nl_ftypes)
1268 return -ENOBUFS;
1269 i = 0;
1270 stypes = mgmt_stypes[ift].rx;
1271 while (stypes) {
1272 if ((stypes & 1) &&
1273 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1274 (i << 4) | IEEE80211_FTYPE_MGMT))
1275 return -ENOBUFS;
1276 stypes >>= 1;
1277 i++;
1278 }
1279 nla_nest_end(msg, nl_ftypes);
1280 }
1281 nla_nest_end(msg, nl_ifs);
ee688b00 1282
3713b4e3
JB		 1283 return 0;
1284}
ee688b00 1285
86e8cf98
JB		 1286struct nl80211_dump_wiphy_state {
1287 s64 filter_wiphy;
1288 long start;
019ae3a9 1289 long split_start, band_start, chan_start, capa_start;
86e8cf98
JB		 1290 bool split;
1291};
1292
1b8ec87a 1293static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1294 enum nl80211_commands cmd,
3713b4e3 1295 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1296 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1297{
1298 void *hdr;
1299 struct nlattr *nl_bands, *nl_band;
1300 struct nlattr *nl_freqs, *nl_freq;
1301 struct nlattr *nl_cmds;
57fbcce3 1302 enum nl80211_band band;
3713b4e3
JB		 1303 struct ieee80211_channel *chan;
1304 int i;
1305 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1306 rdev->wiphy.mgmt_stypes;
fe1abafd 1307 u32 features;
ee688b00 1308
3bb20556 1309 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1310 if (!hdr)
1311 return -ENOBUFS;
ee688b00 1312
86e8cf98
JB		 1313 if (WARN_ON(!state))
1314 return -EINVAL;
ee688b00 1315
1b8ec87a 1316 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1317 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1318 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1319 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1320 cfg80211_rdev_list_generation))
8fdc621d
JB		 1321 goto nla_put_failure;
1322
3bb20556
JB		 1323 if (cmd != NL80211_CMD_NEW_WIPHY)
1324 goto finish;
1325
86e8cf98 1326 switch (state->split_start) {
3713b4e3
JB		 1327 case 0:
1328 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1329 rdev->wiphy.retry_short) ||
3713b4e3 1330 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1331 rdev->wiphy.retry_long) ||
3713b4e3 1332 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1333 rdev->wiphy.frag_threshold) ||
3713b4e3 1334 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1335 rdev->wiphy.rts_threshold) ||
3713b4e3 1336 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1337 rdev->wiphy.coverage_class) ||
3713b4e3 1338 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1339 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1340 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1341 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1342 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1343 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1344 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1345 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1346 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1347 rdev->wiphy.max_match_sets) ||
1348 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1349 rdev->wiphy.max_sched_scan_plans) ||
1350 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1351 rdev->wiphy.max_sched_scan_plan_interval) ||
1352 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1353 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1354 goto nla_put_failure;
3713b4e3 1355
1b8ec87a 1356 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1357 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1358 goto nla_put_failure;
1b8ec87a 1359 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1360 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1361 goto nla_put_failure;
1b8ec87a 1362 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1363 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1364 goto nla_put_failure;
1b8ec87a 1365 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1366 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1367 goto nla_put_failure;
1b8ec87a 1368 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1369 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1370 goto nla_put_failure;
1b8ec87a 1371 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1372 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1373 goto nla_put_failure;
86e8cf98
JB		 1374 state->split_start++;
1375 if (state->split)
3713b4e3
JB		 1376 break;
1377 case 1:
1378 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1379 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1380 rdev->wiphy.cipher_suites))
3713b4e3 1381 goto nla_put_failure;
4745fc09 1382
3713b4e3 1383 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1384 rdev->wiphy.max_num_pmkids))
3713b4e3 1385 goto nla_put_failure;
b23aa676 1386
1b8ec87a 1387 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1388 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1389 goto nla_put_failure;
b23aa676 1390
3713b4e3 1391 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1392 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1393 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1394 rdev->wiphy.available_antennas_rx))
9360ffd1 1395 goto nla_put_failure;
b23aa676 1396
1b8ec87a 1397 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1398 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1399 rdev->wiphy.probe_resp_offload))
3713b4e3 1400 goto nla_put_failure;
8fdc621d 1401
1b8ec87a
ZG		 1402 if ((rdev->wiphy.available_antennas_tx ||
1403 rdev->wiphy.available_antennas_rx) &&
1404 rdev->ops->get_antenna) {
3713b4e3
JB		 1405 u32 tx_ant = 0, rx_ant = 0;
1406 int res;
7a087e74 1407
1b8ec87a 1408 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1409 if (!res) {
1410 if (nla_put_u32(msg,
1411 NL80211_ATTR_WIPHY_ANTENNA_TX,
1412 tx_ant) ||
1413 nla_put_u32(msg,
1414 NL80211_ATTR_WIPHY_ANTENNA_RX,
1415 rx_ant))
1416 goto nla_put_failure;
1417 }
1418 }
a293911d 1419
86e8cf98
JB		 1420 state->split_start++;
1421 if (state->split)
3713b4e3
JB		 1422 break;
1423 case 2:
1424 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1425 rdev->wiphy.interface_modes))
3713b4e3 1426 goto nla_put_failure;
86e8cf98
JB		 1427 state->split_start++;
1428 if (state->split)
3713b4e3
JB		 1429 break;
1430 case 3:
1431 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1432 if (!nl_bands)
1433 goto nla_put_failure;
f7ca38df 1434
86e8cf98 1435 for (band = state->band_start;
57fbcce3 1436 band < NUM_NL80211_BANDS; band++) {
3713b4e3 1437 struct ieee80211_supported_band *sband;
2e161f78 1438
1b8ec87a 1439 sband = rdev->wiphy.bands[band];
2e161f78 1440
3713b4e3
JB		 1441 if (!sband)
1442 continue;
1443
1444 nl_band = nla_nest_start(msg, band);
1445 if (!nl_band)
2e161f78 1446 goto nla_put_failure;
3713b4e3 1447
86e8cf98 1448 switch (state->chan_start) {
3713b4e3
JB		 1449 case 0:
1450 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1451 goto nla_put_failure;
86e8cf98
JB		 1452 state->chan_start++;
1453 if (state->split)
3713b4e3
JB		 1454 break;
1455 default:
1456 /* add frequencies */
1457 nl_freqs = nla_nest_start(
1458 msg, NL80211_BAND_ATTR_FREQS);
1459 if (!nl_freqs)
1460 goto nla_put_failure;
1461
86e8cf98 1462 for (i = state->chan_start - 1;
3713b4e3
JB		 1463 i < sband->n_channels;
1464 i++) {
1465 nl_freq = nla_nest_start(msg, i);
1466 if (!nl_freq)
1467 goto nla_put_failure;
1468
1469 chan = &sband->channels[i];
1470
86e8cf98
JB		 1471 if (nl80211_msg_put_channel(
1472 msg, chan,
1473 state->split))
3713b4e3
JB		 1474 goto nla_put_failure;
1475
1476 nla_nest_end(msg, nl_freq);
86e8cf98 1477 if (state->split)
3713b4e3
JB		 1478 break;
1479 }
1480 if (i < sband->n_channels)
86e8cf98 1481 state->chan_start = i + 2;
3713b4e3 1482 else
86e8cf98 1483 state->chan_start = 0;
3713b4e3
JB		 1484 nla_nest_end(msg, nl_freqs);
1485 }
1486
1487 nla_nest_end(msg, nl_band);
1488
86e8cf98 1489 if (state->split) {
3713b4e3 1490 /* start again here */
86e8cf98 1491 if (state->chan_start)
3713b4e3
JB		 1492 band--;
1493 break;
2e161f78 1494 }
2e161f78 1495 }
3713b4e3 1496 nla_nest_end(msg, nl_bands);
2e161f78 1497
57fbcce3 1498 if (band < NUM_NL80211_BANDS)
86e8cf98 1499 state->band_start = band + 1;
3713b4e3 1500 else
86e8cf98 1501 state->band_start = 0;
74b70a4e 1502
3713b4e3 1503 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1504 if (state->band_start == 0 && state->chan_start == 0)
1505 state->split_start++;
1506 if (state->split)
3713b4e3
JB		 1507 break;
1508 case 4:
1509 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1510 if (!nl_cmds)
2e161f78
JB		 1511 goto nla_put_failure;
1512
3713b4e3
JB		 1513 i = 0;
1514#define CMD(op, n) \
1515 do { \
1b8ec87a 1516 if (rdev->ops->op) { \
3713b4e3
JB		 1517 i++; \
1518 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1519 goto nla_put_failure; \
1520 } \
1521 } while (0)
1522
1523 CMD(add_virtual_intf, NEW_INTERFACE);
1524 CMD(change_virtual_intf, SET_INTERFACE);
1525 CMD(add_key, NEW_KEY);
1526 CMD(start_ap, START_AP);
1527 CMD(add_station, NEW_STATION);
1528 CMD(add_mpath, NEW_MPATH);
1529 CMD(update_mesh_config, SET_MESH_CONFIG);
1530 CMD(change_bss, SET_BSS);
1531 CMD(auth, AUTHENTICATE);
1532 CMD(assoc, ASSOCIATE);
1533 CMD(deauth, DEAUTHENTICATE);
1534 CMD(disassoc, DISASSOCIATE);
1535 CMD(join_ibss, JOIN_IBSS);
1536 CMD(join_mesh, JOIN_MESH);
1537 CMD(set_pmksa, SET_PMKSA);
1538 CMD(del_pmksa, DEL_PMKSA);
1539 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1540 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1541 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1542 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1543 CMD(mgmt_tx, FRAME);
1544 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1545 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1546 i++;
1547 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1548 goto nla_put_failure;
2e161f78 1549 }
1b8ec87a
ZG		 1550 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1551 rdev->ops->join_mesh) {
3713b4e3
JB		 1552 i++;
1553 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1554 goto nla_put_failure;
1555 }
1556 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1557 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1558 CMD(tdls_mgmt, TDLS_MGMT);
1559 CMD(tdls_oper, TDLS_OPER);
1560 }
1b8ec87a 1561 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1562 CMD(sched_scan_start, START_SCHED_SCAN);
1563 CMD(probe_client, PROBE_CLIENT);
1564 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1565 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1566 i++;
1567 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1568 goto nla_put_failure;
1569 }
1570 CMD(start_p2p_device, START_P2P_DEVICE);
1571 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1572#ifdef CONFIG_NL80211_TESTMODE
1573 CMD(testmode_cmd, TESTMODE);
1574#endif
86e8cf98 1575 if (state->split) {
5de17984
AS		 1576 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1577 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1578 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1579 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1580 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1581 if (rdev->wiphy.features &
1582 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1583 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1584 }
02df00eb 1585 /* add into the if now */
3713b4e3 1586#undef CMD
ff1b6e69 1587
1b8ec87a 1588 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1589 i++;
1590 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1591 goto nla_put_failure;
ff1b6e69
JB		 1592 }
1593
1b8ec87a 1594 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1595 i++;
1596 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1597 goto nla_put_failure;
1598 }
1599
1600 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1601 state->split_start++;
1602 if (state->split)
3713b4e3
JB		 1603 break;
1604 case 5:
1b8ec87a
ZG		 1605 if (rdev->ops->remain_on_channel &&
1606 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1607 nla_put_u32(msg,
1608 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1609 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1610 goto nla_put_failure;
1611
1b8ec87a 1612 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1613 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1614 goto nla_put_failure;
1615
1616 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1617 goto nla_put_failure;
86e8cf98
JB		 1618 state->split_start++;
1619 if (state->split)
3713b4e3
JB		 1620 break;
1621 case 6:
1622#ifdef CONFIG_PM
1b8ec87a 1623 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1624 goto nla_put_failure;
86e8cf98
JB		 1625 state->split_start++;
1626 if (state->split)
3713b4e3
JB		 1627 break;
1628#else
86e8cf98 1629 state->split_start++;
dfb89c56 1630#endif
3713b4e3
JB		 1631 case 7:
1632 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1633 rdev->wiphy.software_iftypes))
3713b4e3 1634 goto nla_put_failure;
ff1b6e69 1635
1b8ec87a 1636 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1637 state->split))
3713b4e3 1638 goto nla_put_failure;
7527a782 1639
86e8cf98
JB		 1640 state->split_start++;
1641 if (state->split)
3713b4e3
JB		 1642 break;
1643 case 8:
1b8ec87a 1644 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1645 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1646 rdev->wiphy.ap_sme_capa))
3713b4e3 1647 goto nla_put_failure;
7527a782 1648
1b8ec87a 1649 features = rdev->wiphy.features;
fe1abafd
JB		 1650 /*
1651 * We can only add the per-channel limit information if the
1652 * dump is split, otherwise it makes it too big. Therefore
1653 * only advertise it in that case.
1654 */
86e8cf98 1655 if (state->split)
fe1abafd
JB		 1656 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1657 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1658 goto nla_put_failure;
562a7480 1659
1b8ec87a 1660 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1661 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1662 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1663 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1664 goto nla_put_failure;
1f074bd8 1665
1b8ec87a
ZG		 1666 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1667 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1668 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1669 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1670 goto nla_put_failure;
7e7c8926 1671
3713b4e3
JB		 1672 /*
1673 * Any information below this point is only available to
1674 * applications that can deal with it being split. This
1675 * helps ensure that newly added capabilities don't break
1676 * older tools by overrunning their buffers.
1677 *
1678 * We still increment split_start so that in the split
1679 * case we'll continue with more data in the next round,
1680 * but break unconditionally so unsplit data stops here.
1681 */
86e8cf98 1682 state->split_start++;
3713b4e3
JB		 1683 break;
1684 case 9:
1b8ec87a 1685 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1686 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1687 rdev->wiphy.extended_capabilities_len,
1688 rdev->wiphy.extended_capabilities) ||
fe1abafd 1689 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1690 rdev->wiphy.extended_capabilities_len,
1691 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1692 goto nla_put_failure;
a50df0c4 1693
1b8ec87a 1694 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1695 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1696 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1697 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1698 goto nla_put_failure;
1699
be29b99a
AK		 1700 state->split_start++;
1701 break;
1702 case 10:
1b8ec87a 1703 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1704 goto nla_put_failure;
1705
1b8ec87a 1706 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1707 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1708 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1709 goto nla_put_failure;
b43504cf 1710
1b8ec87a 1711 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1712 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1713 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1714 goto nla_put_failure;
1715
ad7e718c
JB		 1716 state->split_start++;
1717 break;
1718 case 11:
1b8ec87a 1719 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1720 const struct nl80211_vendor_cmd_info *info;
1721 struct nlattr *nested;
1722
1723 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1724 if (!nested)
1725 goto nla_put_failure;
1726
1b8ec87a
ZG		 1727 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1728 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1729 if (nla_put(msg, i + 1, sizeof(*info), info))
1730 goto nla_put_failure;
1731 }
1732 nla_nest_end(msg, nested);
1733 }
1734
1b8ec87a 1735 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1736 const struct nl80211_vendor_cmd_info *info;
1737 struct nlattr *nested;
ad7e718c 1738
567ffc35
JB		 1739 nested = nla_nest_start(msg,
1740 NL80211_ATTR_VENDOR_EVENTS);
1741 if (!nested)
ad7e718c 1742 goto nla_put_failure;
567ffc35 1743
1b8ec87a
ZG		 1744 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1745 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1746 if (nla_put(msg, i + 1, sizeof(*info), info))
1747 goto nla_put_failure;
1748 }
1749 nla_nest_end(msg, nested);
1750 }
9a774c78
AO		 1751 state->split_start++;
1752 break;
1753 case 12:
1754 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1755 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1756 rdev->wiphy.max_num_csa_counters))
1757 goto nla_put_failure;
01e0daa4 1758
1bdd716c
AN		 1759 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1760 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1761 goto nla_put_failure;
1762
d75bb06b
GKS		 1763 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1764 sizeof(rdev->wiphy.ext_features),
1765 rdev->wiphy.ext_features))
1766 goto nla_put_failure;
1767
38de03d2
AS		 1768 if (rdev->wiphy.bss_select_support) {
1769 struct nlattr *nested;
1770 u32 bss_select_support = rdev->wiphy.bss_select_support;
1771
1772 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1773 if (!nested)
1774 goto nla_put_failure;
1775
1776 i = 0;
1777 while (bss_select_support) {
1778 if ((bss_select_support & 1) &&
1779 nla_put_flag(msg, i))
1780 goto nla_put_failure;
1781 i++;
1782 bss_select_support >>= 1;
1783 }
1784 nla_nest_end(msg, nested);
1785 }
1786
019ae3a9
KV		 1787 state->split_start++;
1788 break;
1789 case 13:
1790 if (rdev->wiphy.num_iftype_ext_capab &&
1791 rdev->wiphy.iftype_ext_capab) {
1792 struct nlattr *nested_ext_capab, *nested;
1793
1794 nested = nla_nest_start(msg,
1795 NL80211_ATTR_IFTYPE_EXT_CAPA);
1796 if (!nested)
1797 goto nla_put_failure;
1798
1799 for (i = state->capa_start;
1800 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1801 const struct wiphy_iftype_ext_capab *capab;
1802
1803 capab = &rdev->wiphy.iftype_ext_capab[i];
1804
1805 nested_ext_capab = nla_nest_start(msg, i);
1806 if (!nested_ext_capab ||
1807 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1808 capab->iftype) ||
1809 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1810 capab->extended_capabilities_len,
1811 capab->extended_capabilities) ||
1812 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1813 capab->extended_capabilities_len,
1814 capab->extended_capabilities_mask))
1815 goto nla_put_failure;
1816
1817 nla_nest_end(msg, nested_ext_capab);
1818 if (state->split)
1819 break;
1820 }
1821 nla_nest_end(msg, nested);
1822 if (i < rdev->wiphy.num_iftype_ext_capab) {
1823 state->capa_start = i + 1;
1824 break;
1825 }
1826 }
1827
3713b4e3 1828 /* done */
86e8cf98 1829 state->split_start = 0;
3713b4e3
JB		 1830 break;
1831 }
3bb20556 1832 finish:
053c095a
JB		 1833 genlmsg_end(msg, hdr);
1834 return 0;
55682965
JB		 1835
1836 nla_put_failure:
bc3ed28c
TG		 1837 genlmsg_cancel(msg, hdr);
1838 return -EMSGSIZE;
55682965
JB		 1839}
1840
86e8cf98
JB		 1841static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1842 struct netlink_callback *cb,
1843 struct nl80211_dump_wiphy_state *state)
1844{
1845 struct nlattr **tb = nl80211_fam.attrbuf;
1846 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1847 tb, nl80211_fam.maxattr, nl80211_policy);
1848 /* ignore parse errors for backward compatibility */
1849 if (ret)
1850 return 0;
1851
1852 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1853 if (tb[NL80211_ATTR_WIPHY])
1854 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1855 if (tb[NL80211_ATTR_WDEV])
1856 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1857 if (tb[NL80211_ATTR_IFINDEX]) {
1858 struct net_device *netdev;
1859 struct cfg80211_registered_device *rdev;
1860 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1861
7f2b8562 1862 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1863 if (!netdev)
1864 return -ENODEV;
1865 if (netdev->ieee80211_ptr) {
f26cbf40 1866 rdev = wiphy_to_rdev(
86e8cf98
JB		 1867 netdev->ieee80211_ptr->wiphy);
1868 state->filter_wiphy = rdev->wiphy_idx;
1869 }
86e8cf98
JB		 1870 }
1871
1872 return 0;
1873}
1874
55682965
JB		 1875static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1876{
645e77de 1877 int idx = 0, ret;
86e8cf98 1878 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1879 struct cfg80211_registered_device *rdev;
3a5a423b 1880
5fe231e8 1881 rtnl_lock();
86e8cf98
JB		 1882 if (!state) {
1883 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1884 if (!state) {
1885 rtnl_unlock();
86e8cf98 1886 return -ENOMEM;
3713b4e3 1887 }
86e8cf98
JB		 1888 state->filter_wiphy = -1;
1889 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1890 if (ret) {
1891 kfree(state);
1892 rtnl_unlock();
1893 return ret;
3713b4e3 1894 }
86e8cf98 1895 cb->args[0] = (long)state;
3713b4e3
JB		 1896 }
1897
1b8ec87a
ZG		 1898 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1899 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1900 continue;
86e8cf98 1901 if (++idx <= state->start)
55682965 1902 continue;
86e8cf98 1903 if (state->filter_wiphy != -1 &&
1b8ec87a 1904 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1905 continue;
1906 /* attempt to fit multiple wiphy data chunks into the skb */
1907 do {
3bb20556
JB		 1908 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1909 skb,
3713b4e3
JB		 1910 NETLINK_CB(cb->skb).portid,
1911 cb->nlh->nlmsg_seq,
86e8cf98 1912 NLM_F_MULTI, state);
3713b4e3
JB		 1913 if (ret < 0) {
1914 /*
1915 * If sending the wiphy data didn't fit (ENOBUFS
1916 * or EMSGSIZE returned), this SKB is still
1917 * empty (so it's not too big because another
1918 * wiphy dataset is already in the skb) and
1919 * we've not tried to adjust the dump allocation
1920 * yet ... then adjust the alloc size to be
1921 * bigger, and return 1 but with the empty skb.
1922 * This results in an empty message being RX'ed
1923 * in userspace, but that is ignored.
1924 *
1925 * We can then retry with the larger buffer.
1926 */
1927 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1928 !skb->len && !state->split &&
3713b4e3
JB		 1929 cb->min_dump_alloc < 4096) {
1930 cb->min_dump_alloc = 4096;
f12cb289 1931 state->split_start = 0;
d98cae64 1932 rtnl_unlock();
3713b4e3
JB		 1933 return 1;
1934 }
1935 idx--;
1936 break;
645e77de 1937 }
86e8cf98 1938 } while (state->split_start > 0);
3713b4e3 1939 break;
55682965 1940 }
5fe231e8 1941 rtnl_unlock();
55682965 1942
86e8cf98 1943 state->start = idx;
55682965
JB		 1944
1945 return skb->len;
1946}
1947
86e8cf98
JB		 1948static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1949{
1950 kfree((void *)cb->args[0]);
1951 return 0;
1952}
1953
55682965
JB		 1954static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1955{
1956 struct sk_buff *msg;
1b8ec87a 1957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1958 struct nl80211_dump_wiphy_state state = {};
55682965 1959
645e77de 1960 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1961 if (!msg)
4c476991 1962 return -ENOMEM;
55682965 1963
3bb20556
JB		 1964 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1965 info->snd_portid, info->snd_seq, 0,
86e8cf98 1966 &state) < 0) {
4c476991
JB		 1967 nlmsg_free(msg);
1968 return -ENOBUFS;
1969 }
55682965 1970
134e6375 1971 return genlmsg_reply(msg, info);
55682965
JB		 1972}
1973
31888487
JM		 1974static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1975 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1976 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1977 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1978 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1979 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1980};
1981
1982static int parse_txq_params(struct nlattr *tb[],
1983 struct ieee80211_txq_params *txq_params)
1984{
a3304b0a 1985 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1986 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1987 !tb[NL80211_TXQ_ATTR_AIFS])
1988 return -EINVAL;
1989
a3304b0a 1990 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1991 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1992 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1993 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1994 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1995
a3304b0a
JB		 1996 if (txq_params->ac >= NL80211_NUM_ACS)
1997 return -EINVAL;
1998
31888487
JM		 1999 return 0;
2000}
2001
f444de05
JB		 2002static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2003{
2004 /*
cc1d2806
JB		 2005 * You can only set the channel explicitly for WDS interfaces,
2006 * all others have their channel managed via their respective
2007 * "establish a connection" command (connect, join, ...)
2008 *
2009 * For AP/GO and mesh mode, the channel can be set with the
2010 * channel userspace API, but is only stored and passed to the
2011 * low-level driver when the AP starts or the mesh is joined.
2012 * This is for backward compatibility, userspace can also give
2013 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 2014 *
2015 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 2016 * whatever else is going on, so they have their own special
2017 * operation to set the monitor channel if possible.
f444de05
JB		 2018 */
2019 return !wdev ||
2020 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 2021 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 2022 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2023 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 2024}
2025
683b6d3b
JB		 2026static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2027 struct genl_info *info,
2028 struct cfg80211_chan_def *chandef)
2029{
dbeca2ea 2030 u32 control_freq;
683b6d3b
JB		 2031
2032 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2033 return -EINVAL;
2034
2035 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2036
2037 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 2038 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2039 chandef->center_freq1 = control_freq;
2040 chandef->center_freq2 = 0;
683b6d3b
JB		 2041
2042 /* Primary channel not allowed */
2043 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2044 return -EINVAL;
2045
3d9d1d66
JB		 2046 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2047 enum nl80211_channel_type chantype;
2048
2049 chantype = nla_get_u32(
2050 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2051
2052 switch (chantype) {
2053 case NL80211_CHAN_NO_HT:
2054 case NL80211_CHAN_HT20:
2055 case NL80211_CHAN_HT40PLUS:
2056 case NL80211_CHAN_HT40MINUS:
2057 cfg80211_chandef_create(chandef, chandef->chan,
2058 chantype);
2059 break;
2060 default:
2061 return -EINVAL;
2062 }
2063 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2064 chandef->width =
2065 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2066 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2067 chandef->center_freq1 =
2068 nla_get_u32(
2069 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2070 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2071 chandef->center_freq2 =
2072 nla_get_u32(
2073 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2074 }
2075
9f5e8f6e 2076 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 2077 return -EINVAL;
2078
9f5e8f6e
JB		 2079 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2080 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 2081 return -EINVAL;
2082
2f301ab2
SW		 2083 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2084 chandef->width == NL80211_CHAN_WIDTH_10) &&
2085 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2086 return -EINVAL;
2087
683b6d3b
JB		 2088 return 0;
2089}
2090
f444de05 2091static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 2092 struct net_device *dev,
f444de05
JB		 2093 struct genl_info *info)
2094{
683b6d3b 2095 struct cfg80211_chan_def chandef;
f444de05 2096 int result;
e8c9bd5b 2097 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2098 struct wireless_dev *wdev = NULL;
e8c9bd5b 2099
e16821bc
JM		 2100 if (dev)
2101 wdev = dev->ieee80211_ptr;
f444de05
JB		 2102 if (!nl80211_can_set_dev_channel(wdev))
2103 return -EOPNOTSUPP;
e16821bc
JM		 2104 if (wdev)
2105 iftype = wdev->iftype;
f444de05 2106
683b6d3b
JB		 2107 result = nl80211_parse_chandef(rdev, info, &chandef);
2108 if (result)
2109 return result;
f444de05 2110
e8c9bd5b 2111 switch (iftype) {
aa430da4
JB		 2112 case NL80211_IFTYPE_AP:
2113 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2114 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2115 iftype)) {
aa430da4
JB		 2116 result = -EINVAL;
2117 break;
2118 }
e16821bc
JM		 2119 if (wdev->beacon_interval) {
2120 if (!dev || !rdev->ops->set_ap_chanwidth ||
2121 !(rdev->wiphy.features &
2122 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2123 result = -EBUSY;
2124 break;
2125 }
2126
2127 /* Only allow dynamic channel width changes */
2128 if (chandef.chan != wdev->preset_chandef.chan) {
2129 result = -EBUSY;
2130 break;
2131 }
2132 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2133 if (result)
2134 break;
2135 }
683b6d3b 2136 wdev->preset_chandef = chandef;
aa430da4
JB		 2137 result = 0;
2138 break;
cc1d2806 2139 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2140 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2141 break;
e8c9bd5b 2142 case NL80211_IFTYPE_MONITOR:
683b6d3b 2143 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2144 break;
aa430da4 2145 default:
e8c9bd5b 2146 result = -EINVAL;
f444de05 2147 }
f444de05
JB		 2148
2149 return result;
2150}
2151
2152static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2153{
4c476991
JB		 2154 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2155 struct net_device *netdev = info->user_ptr[1];
f444de05 2156
e16821bc 2157 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2158}
2159
e8347eba
BJ		 2160static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2161{
43b19952
JB		 2162 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2163 struct net_device *dev = info->user_ptr[1];
2164 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2165 const u8 *bssid;
e8347eba
BJ		 2166
2167 if (!info->attrs[NL80211_ATTR_MAC])
2168 return -EINVAL;
2169
43b19952
JB		 2170 if (netif_running(dev))
2171 return -EBUSY;
e8347eba 2172
43b19952
JB		 2173 if (!rdev->ops->set_wds_peer)
2174 return -EOPNOTSUPP;
e8347eba 2175
43b19952
JB		 2176 if (wdev->iftype != NL80211_IFTYPE_WDS)
2177 return -EOPNOTSUPP;
e8347eba
BJ		 2178
2179 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2180 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2181}
2182
55682965
JB		 2183static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2184{
2185 struct cfg80211_registered_device *rdev;
f444de05
JB		 2186 struct net_device *netdev = NULL;
2187 struct wireless_dev *wdev;
a1e567c8 2188 int result = 0, rem_txq_params = 0;
31888487 2189 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2190 u32 changed;
2191 u8 retry_short = 0, retry_long = 0;
2192 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2193 u8 coverage_class = 0;
55682965 2194
5fe231e8
JB		 2195 ASSERT_RTNL();
2196
f444de05
JB		 2197 /*
2198 * Try to find the wiphy and netdev. Normally this
2199 * function shouldn't need the netdev, but this is
2200 * done for backward compatibility -- previously
2201 * setting the channel was done per wiphy, but now
2202 * it is per netdev. Previous userland like hostapd
2203 * also passed a netdev to set_wiphy, so that it is
2204 * possible to let that go to the right netdev!
2205 */
4bbf4d56 2206
f444de05
JB		 2207 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2208 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2209
7f2b8562 2210 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2211 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2212 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2213 else
f444de05 2214 netdev = NULL;
4bbf4d56
JB		 2215 }
2216
f444de05 2217 if (!netdev) {
878d9ec7
JB		 2218 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2219 info->attrs);
5fe231e8 2220 if (IS_ERR(rdev))
4c476991 2221 return PTR_ERR(rdev);
f444de05
JB		 2222 wdev = NULL;
2223 netdev = NULL;
2224 result = 0;
71fe96bf 2225 } else
f444de05 2226 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2227
2228 /*
2229 * end workaround code, by now the rdev is available
2230 * and locked, and wdev may or may not be NULL.
2231 */
4bbf4d56
JB		 2232
2233 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2234 result = cfg80211_dev_rename(
2235 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2236
4bbf4d56 2237 if (result)
7f2b8562 2238 return result;
31888487
JM		 2239
2240 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2241 struct ieee80211_txq_params txq_params;
2242 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2243
7f2b8562
YX		 2244 if (!rdev->ops->set_txq_params)
2245 return -EOPNOTSUPP;
31888487 2246
7f2b8562
YX		 2247 if (!netdev)
2248 return -EINVAL;
f70f01c2 2249
133a3ff2 2250 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2251 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2252 return -EINVAL;
133a3ff2 2253
7f2b8562
YX		 2254 if (!netif_running(netdev))
2255 return -ENETDOWN;
2b5f8b0b 2256
31888487
JM		 2257 nla_for_each_nested(nl_txq_params,
2258 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2259 rem_txq_params) {
ae811e21
JB		 2260 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2261 nla_data(nl_txq_params),
2262 nla_len(nl_txq_params),
2263 txq_params_policy);
2264 if (result)
2265 return result;
31888487
JM		 2266 result = parse_txq_params(tb, &txq_params);
2267 if (result)
7f2b8562 2268 return result;
31888487 2269
e35e4d28
HG		 2270 result = rdev_set_txq_params(rdev, netdev,
2271 &txq_params);
31888487 2272 if (result)
7f2b8562 2273 return result;
31888487
JM		 2274 }
2275 }
55682965 2276
72bdcf34 2277 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2278 result = __nl80211_set_channel(
2279 rdev,
2280 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2281 info);
72bdcf34 2282 if (result)
7f2b8562 2283 return result;
72bdcf34
JM		 2284 }
2285
98d2ff8b 2286 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2287 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2288 enum nl80211_tx_power_setting type;
2289 int idx, mbm = 0;
2290
c8442118
JB		 2291 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2292 txp_wdev = NULL;
2293
7f2b8562
YX		 2294 if (!rdev->ops->set_tx_power)
2295 return -EOPNOTSUPP;
98d2ff8b
JO		 2296
2297 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2298 type = nla_get_u32(info->attrs[idx]);
2299
2300 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2301 (type != NL80211_TX_POWER_AUTOMATIC))
2302 return -EINVAL;
98d2ff8b
JO		 2303
2304 if (type != NL80211_TX_POWER_AUTOMATIC) {
2305 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2306 mbm = nla_get_u32(info->attrs[idx]);
2307 }
2308
c8442118 2309 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2310 if (result)
7f2b8562 2311 return result;
98d2ff8b
JO		 2312 }
2313
afe0cbf8
BR		 2314 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2315 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2316 u32 tx_ant, rx_ant;
7a087e74 2317
7f531e03
BR		 2318 if ((!rdev->wiphy.available_antennas_tx &&
2319 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2320 !rdev->ops->set_antenna)
2321 return -EOPNOTSUPP;
afe0cbf8
BR		 2322
2323 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2324 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2325
a7ffac95 2326 /* reject antenna configurations which don't match the
7f531e03
BR		 2327 * available antenna masks, except for the "all" mask */
2328 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2329 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2330 return -EINVAL;
a7ffac95 2331
7f531e03
BR		 2332 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2333 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2334
e35e4d28 2335 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2336 if (result)
7f2b8562 2337 return result;
afe0cbf8
BR		 2338 }
2339
b9a5f8ca
JM		 2340 changed = 0;
2341
2342 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2343 retry_short = nla_get_u8(
2344 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2345 if (retry_short == 0)
2346 return -EINVAL;
2347
b9a5f8ca
JM		 2348 changed |= WIPHY_PARAM_RETRY_SHORT;
2349 }
2350
2351 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2352 retry_long = nla_get_u8(
2353 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2354 if (retry_long == 0)
2355 return -EINVAL;
2356
b9a5f8ca
JM		 2357 changed |= WIPHY_PARAM_RETRY_LONG;
2358 }
2359
2360 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2361 frag_threshold = nla_get_u32(
2362 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2363 if (frag_threshold < 256)
2364 return -EINVAL;
2365
b9a5f8ca
JM		 2366 if (frag_threshold != (u32) -1) {
2367 /*
2368 * Fragments (apart from the last one) are required to
2369 * have even length. Make the fragmentation code
2370 * simpler by stripping LSB should someone try to use
2371 * odd threshold value.
2372 */
2373 frag_threshold &= ~0x1;
2374 }
2375 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2376 }
2377
2378 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2379 rts_threshold = nla_get_u32(
2380 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2381 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2382 }
2383
81077e82 2384 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2385 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2386 return -EINVAL;
2387
81077e82
LT		 2388 coverage_class = nla_get_u8(
2389 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2390 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2391 }
2392
3057dbfd
LB		 2393 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2394 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2395 return -EOPNOTSUPP;
2396
2397 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2398 }
2399
b9a5f8ca
JM		 2400 if (changed) {
2401 u8 old_retry_short, old_retry_long;
2402 u32 old_frag_threshold, old_rts_threshold;
81077e82 2403 u8 old_coverage_class;
b9a5f8ca 2404
7f2b8562
YX		 2405 if (!rdev->ops->set_wiphy_params)
2406 return -EOPNOTSUPP;
b9a5f8ca
JM		 2407
2408 old_retry_short = rdev->wiphy.retry_short;
2409 old_retry_long = rdev->wiphy.retry_long;
2410 old_frag_threshold = rdev->wiphy.frag_threshold;
2411 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2412 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2413
2414 if (changed & WIPHY_PARAM_RETRY_SHORT)
2415 rdev->wiphy.retry_short = retry_short;
2416 if (changed & WIPHY_PARAM_RETRY_LONG)
2417 rdev->wiphy.retry_long = retry_long;
2418 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2419 rdev->wiphy.frag_threshold = frag_threshold;
2420 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2421 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2422 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2423 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2424
e35e4d28 2425 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2426 if (result) {
2427 rdev->wiphy.retry_short = old_retry_short;
2428 rdev->wiphy.retry_long = old_retry_long;
2429 rdev->wiphy.frag_threshold = old_frag_threshold;
2430 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2431 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2432 return result;
b9a5f8ca
JM		 2433 }
2434 }
7f2b8562 2435 return 0;
55682965
JB		 2436}
2437
71bbc994
JB		 2438static inline u64 wdev_id(struct wireless_dev *wdev)
2439{
2440 return (u64)wdev->identifier |
f26cbf40 2441 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2442}
55682965 2443
683b6d3b 2444static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2445 const struct cfg80211_chan_def *chandef)
683b6d3b 2446{
601555cd
JB		 2447 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2448 return -EINVAL;
3d9d1d66 2449
683b6d3b
JB		 2450 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2451 chandef->chan->center_freq))
2452 return -ENOBUFS;
3d9d1d66
JB		 2453 switch (chandef->width) {
2454 case NL80211_CHAN_WIDTH_20_NOHT:
2455 case NL80211_CHAN_WIDTH_20:
2456 case NL80211_CHAN_WIDTH_40:
2457 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2458 cfg80211_get_chandef_type(chandef)))
2459 return -ENOBUFS;
2460 break;
2461 default:
2462 break;
2463 }
2464 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2465 return -ENOBUFS;
2466 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2467 return -ENOBUFS;
2468 if (chandef->center_freq2 &&
2469 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2470 return -ENOBUFS;
2471 return 0;
2472}
2473
15e47304 2474static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2475 struct cfg80211_registered_device *rdev,
8f894be2 2476 struct wireless_dev *wdev, bool removal)
55682965 2477{
72fb2abc 2478 struct net_device *dev = wdev->netdev;
8f894be2 2479 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2480 void *hdr;
2481
8f894be2
TB		 2482 if (removal)
2483 cmd = NL80211_CMD_DEL_INTERFACE;
2484
2485 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2486 if (!hdr)
2487 return -1;
2488
72fb2abc
JB		 2489 if (dev &&
2490 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2491 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2492 goto nla_put_failure;
2493
2494 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2495 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2dad624e
ND		 2496 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2497 NL80211_ATTR_PAD) ||
98104fde 2498 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2499 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2500 rdev->devlist_generation ^
2501 (cfg80211_rdev_list_generation << 2)))
2502 goto nla_put_failure;
f5ea9120 2503
5b7ccaf3 2504 if (rdev->ops->get_channel) {
683b6d3b
JB		 2505 int ret;
2506 struct cfg80211_chan_def chandef;
2507
2508 ret = rdev_get_channel(rdev, wdev, &chandef);
2509 if (ret == 0) {
2510 if (nl80211_send_chandef(msg, &chandef))
2511 goto nla_put_failure;
2512 }
d91df0e3
PF		 2513 }
2514
d55d0d59
RM		 2515 if (rdev->ops->get_tx_power) {
2516 int dbm, ret;
2517
2518 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2519 if (ret == 0 &&
2520 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2521 DBM_TO_MBM(dbm)))
2522 goto nla_put_failure;
2523 }
2524
b84e7a05
AQ		 2525 if (wdev->ssid_len) {
2526 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2527 goto nla_put_failure;
2528 }
2529
053c095a
JB		 2530 genlmsg_end(msg, hdr);
2531 return 0;
55682965
JB		 2532
2533 nla_put_failure:
bc3ed28c
TG		 2534 genlmsg_cancel(msg, hdr);
2535 return -EMSGSIZE;
55682965
JB		 2536}
2537
2538static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2539{
2540 int wp_idx = 0;
2541 int if_idx = 0;
2542 int wp_start = cb->args[0];
2543 int if_start = cb->args[1];
b7fb44da 2544 int filter_wiphy = -1;
f5ea9120 2545 struct cfg80211_registered_device *rdev;
55682965
JB		 2546 struct wireless_dev *wdev;
2547
5fe231e8 2548 rtnl_lock();
b7fb44da
DK		 2549 if (!cb->args[2]) {
2550 struct nl80211_dump_wiphy_state state = {
2551 .filter_wiphy = -1,
2552 };
2553 int ret;
2554
2555 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2556 if (ret)
2557 return ret;
2558
2559 filter_wiphy = state.filter_wiphy;
2560
2561 /*
2562 * if filtering, set cb->args[2] to +1 since 0 is the default
2563 * value needed to determine that parsing is necessary.
2564 */
2565 if (filter_wiphy >= 0)
2566 cb->args[2] = filter_wiphy + 1;
2567 else
2568 cb->args[2] = -1;
2569 } else if (cb->args[2] > 0) {
2570 filter_wiphy = cb->args[2] - 1;
2571 }
2572
f5ea9120
JB		 2573 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2574 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2575 continue;
bba95fef
JB		 2576 if (wp_idx < wp_start) {
2577 wp_idx++;
55682965 2578 continue;
bba95fef 2579 }
b7fb44da
DK		 2580
2581 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2582 continue;
2583
55682965
JB		 2584 if_idx = 0;
2585
53873f13 2586 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
bba95fef
JB		 2587 if (if_idx < if_start) {
2588 if_idx++;
55682965 2589 continue;
bba95fef 2590 }
15e47304 2591 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2592 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2593 rdev, wdev, false) < 0) {
bba95fef
JB		 2594 goto out;
2595 }
2596 if_idx++;
55682965 2597 }
bba95fef
JB		 2598
2599 wp_idx++;
55682965 2600 }
bba95fef 2601 out:
5fe231e8 2602 rtnl_unlock();
55682965
JB		 2603
2604 cb->args[0] = wp_idx;
2605 cb->args[1] = if_idx;
2606
2607 return skb->len;
2608}
2609
2610static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2611{
2612 struct sk_buff *msg;
1b8ec87a 2613 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2614 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2615
fd2120ca 2616 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2617 if (!msg)
4c476991 2618 return -ENOMEM;
55682965 2619
15e47304 2620 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2621 rdev, wdev, false) < 0) {
4c476991
JB		 2622 nlmsg_free(msg);
2623 return -ENOBUFS;
2624 }
55682965 2625
134e6375 2626 return genlmsg_reply(msg, info);
55682965
JB		 2627}
2628
66f7ac50
MW		 2629static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2630 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2631 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2632 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2633 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2634 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2635 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2636};
2637
2638static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2639{
2640 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2641 int flag;
2642
2643 *mntrflags = 0;
2644
2645 if (!nla)
2646 return -EINVAL;
2647
2648 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2649 nla, mntr_flags_policy))
2650 return -EINVAL;
2651
2652 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2653 if (flags[flag])
2654 *mntrflags |= (1<<flag);
2655
2656 return 0;
2657}
2658
9bc383de 2659static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2660 struct net_device *netdev, u8 use_4addr,
2661 enum nl80211_iftype iftype)
9bc383de 2662{
ad4bb6f8 2663 if (!use_4addr) {
f350a0a8 2664 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2665 return -EBUSY;
9bc383de 2666 return 0;
ad4bb6f8 2667 }
9bc383de
JB		 2668
2669 switch (iftype) {
2670 case NL80211_IFTYPE_AP_VLAN:
2671 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2672 return 0;
2673 break;
2674 case NL80211_IFTYPE_STATION:
2675 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2676 return 0;
2677 break;
2678 default:
2679 break;
2680 }
2681
2682 return -EOPNOTSUPP;
2683}
2684
55682965
JB		 2685static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2686{
4c476991 2687 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2688 struct vif_params params;
e36d56b6 2689 int err;
04a773ad 2690 enum nl80211_iftype otype, ntype;
4c476991 2691 struct net_device *dev = info->user_ptr[1];
92ffe055 2692 u32 _flags, *flags = NULL;
ac7f9cfa 2693 bool change = false;
55682965 2694
2ec600d6
LCC		 2695 memset(&params, 0, sizeof(params));
2696
04a773ad 2697 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2698
723b038d 2699 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2700 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2701 if (otype != ntype)
ac7f9cfa 2702 change = true;
4c476991
JB		 2703 if (ntype > NL80211_IFTYPE_MAX)
2704 return -EINVAL;
723b038d
JB		 2705 }
2706
92ffe055 2707 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2708 struct wireless_dev *wdev = dev->ieee80211_ptr;
2709
4c476991
JB		 2710 if (ntype != NL80211_IFTYPE_MESH_POINT)
2711 return -EINVAL;
29cbe68c
JB		 2712 if (netif_running(dev))
2713 return -EBUSY;
2714
2715 wdev_lock(wdev);
2716 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2717 IEEE80211_MAX_MESH_ID_LEN);
2718 wdev->mesh_id_up_len =
2719 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2720 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2721 wdev->mesh_id_up_len);
2722 wdev_unlock(wdev);
2ec600d6
LCC		 2723 }
2724
8b787643
FF		 2725 if (info->attrs[NL80211_ATTR_4ADDR]) {
2726 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2727 change = true;
ad4bb6f8 2728 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2729 if (err)
4c476991 2730 return err;
8b787643
FF		 2731 } else {
2732 params.use_4addr = -1;
2733 }
2734
92ffe055 2735 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2736 if (ntype != NL80211_IFTYPE_MONITOR)
2737 return -EINVAL;
92ffe055
JB		 2738 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2739 &_flags);
ac7f9cfa 2740 if (err)
4c476991 2741 return err;
ac7f9cfa
JB		 2742
2743 flags = &_flags;
2744 change = true;
92ffe055 2745 }
3b85875a 2746
c6e6a0c8
AE		 2747 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2748 const u8 *mumimo_groups;
2749 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2750
2751 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2752 return -EOPNOTSUPP;
2753
2754 mumimo_groups =
2755 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2756
2757 /* bits 0 and 63 are reserved and must be zero */
2758 if ((mumimo_groups[0] & BIT(7)) ||
2759 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(0)))
2760 return -EINVAL;
2761
2762 memcpy(params.vht_mumimo_groups, mumimo_groups,
2763 VHT_MUMIMO_GROUPS_DATA_LEN);
2764 change = true;
2765 }
2766
2767 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2768 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2769
2770 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2771 return -EOPNOTSUPP;
2772
2773 nla_memcpy(params.macaddr,
2774 info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR],
2775 ETH_ALEN);
2776 change = true;
2777 }
2778
18003297 2779 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2780 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2781 return -EOPNOTSUPP;
2782
ac7f9cfa 2783 if (change)
3d54d255 2784 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2785 else
2786 err = 0;
60719ffd 2787
9bc383de
JB		 2788 if (!err && params.use_4addr != -1)
2789 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2790
55682965
JB		 2791 return err;
2792}
2793
2794static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2795{
4c476991 2796 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2797 struct vif_params params;
84efbb84 2798 struct wireless_dev *wdev;
896ff063 2799 struct sk_buff *msg;
55682965
JB		 2800 int err;
2801 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2802 u32 flags;
55682965 2803
78f22b6a
JB		 2804 /* to avoid failing a new interface creation due to pending removal */
2805 cfg80211_destroy_ifaces(rdev);
2806
2ec600d6
LCC		 2807 memset(&params, 0, sizeof(params));
2808
55682965
JB		 2809 if (!info->attrs[NL80211_ATTR_IFNAME])
2810 return -EINVAL;
2811
2812 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2813 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2814 if (type > NL80211_IFTYPE_MAX)
2815 return -EINVAL;
2816 }
2817
79c97e97 2818 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2819 !(rdev->wiphy.interface_modes & (1 << type)))
2820 return -EOPNOTSUPP;
55682965 2821
e8f479b1
BG		 2822 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2823 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2824 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2825 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2826 ETH_ALEN);
2827 if (!is_valid_ether_addr(params.macaddr))
2828 return -EADDRNOTAVAIL;
2829 }
2830
9bc383de 2831 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2832 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2833 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2834 if (err)
4c476991 2835 return err;
9bc383de 2836 }
8b787643 2837
66f7ac50
MW		 2838 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2839 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2840 &flags);
e057d3c3 2841
18003297 2842 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2843 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2844 return -EOPNOTSUPP;
2845
a18c7192
JB		 2846 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2847 if (!msg)
2848 return -ENOMEM;
2849
e35e4d28
HG		 2850 wdev = rdev_add_virtual_intf(rdev,
2851 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2852 NET_NAME_USER, type, err ? NULL : &flags,
2853 &params);
d687cbb7
RM		 2854 if (WARN_ON(!wdev)) {
2855 nlmsg_free(msg);
2856 return -EPROTO;
2857 } else if (IS_ERR(wdev)) {
1c90f9d4 2858 nlmsg_free(msg);
84efbb84 2859 return PTR_ERR(wdev);
1c90f9d4 2860 }
2ec600d6 2861
18e5ca65 2862 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2863 wdev->owner_nlportid = info->snd_portid;
2864
98104fde
JB		 2865 switch (type) {
2866 case NL80211_IFTYPE_MESH_POINT:
2867 if (!info->attrs[NL80211_ATTR_MESH_ID])
2868 break;
29cbe68c
JB		 2869 wdev_lock(wdev);
2870 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2871 IEEE80211_MAX_MESH_ID_LEN);
2872 wdev->mesh_id_up_len =
2873 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2874 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2875 wdev->mesh_id_up_len);
2876 wdev_unlock(wdev);
98104fde
JB		 2877 break;
2878 case NL80211_IFTYPE_P2P_DEVICE:
2879 /*
2880 * P2P Device doesn't have a netdev, so doesn't go
2881 * through the netdev notifier and must be added here
2882 */
2883 mutex_init(&wdev->mtx);
2884 INIT_LIST_HEAD(&wdev->event_list);
2885 spin_lock_init(&wdev->event_lock);
2886 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2887 spin_lock_init(&wdev->mgmt_registrations_lock);
2888
98104fde 2889 wdev->identifier = ++rdev->wdev_id;
53873f13 2890 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
98104fde 2891 rdev->devlist_generation++;
98104fde
JB		 2892 break;
2893 default:
2894 break;
29cbe68c
JB		 2895 }
2896
15e47304 2897 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2898 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2899 nlmsg_free(msg);
2900 return -ENOBUFS;
2901 }
2902
896ff063
DK		 2903 /*
2904 * For wdevs which have no associated netdev object (e.g. of type
2905 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
2906 * For all other types, the event will be generated from the
2907 * netdev notifier
2908 */
2909 if (!wdev->netdev)
2910 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
8f894be2 2911
1c90f9d4 2912 return genlmsg_reply(msg, info);
55682965
JB		 2913}
2914
2915static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2916{
4c476991 2917 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2918 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2919
4c476991
JB		 2920 if (!rdev->ops->del_virtual_intf)
2921 return -EOPNOTSUPP;
55682965 2922
84efbb84
JB		 2923 /*
2924 * If we remove a wireless device without a netdev then clear
2925 * user_ptr[1] so that nl80211_post_doit won't dereference it
2926 * to check if it needs to do dev_put(). Otherwise it crashes
2927 * since the wdev has been freed, unlike with a netdev where
2928 * we need the dev_put() for the netdev to really be freed.
2929 */
2930 if (!wdev->netdev)
2931 info->user_ptr[1] = NULL;
2932
7f8ed01e 2933 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2934}
2935
1d9d9213
SW		 2936static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2937{
2938 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2939 struct net_device *dev = info->user_ptr[1];
2940 u16 noack_map;
2941
2942 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2943 return -EINVAL;
2944
2945 if (!rdev->ops->set_noack_map)
2946 return -EOPNOTSUPP;
2947
2948 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2949
e35e4d28 2950 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2951}
2952
41ade00f
JB		 2953struct get_key_cookie {
2954 struct sk_buff *msg;
2955 int error;
b9454e83 2956 int idx;
41ade00f
JB		 2957};
2958
2959static void get_key_callback(void *c, struct key_params *params)
2960{
b9454e83 2961 struct nlattr *key;
41ade00f
JB		 2962 struct get_key_cookie *cookie = c;
2963
9360ffd1
DM		 2964 if ((params->key &&
2965 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2966 params->key_len, params->key)) ||
2967 (params->seq &&
2968 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2969 params->seq_len, params->seq)) ||
2970 (params->cipher &&
2971 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2972 params->cipher)))
2973 goto nla_put_failure;
41ade00f 2974
b9454e83
JB		 2975 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2976 if (!key)
2977 goto nla_put_failure;
2978
9360ffd1
DM		 2979 if ((params->key &&
2980 nla_put(cookie->msg, NL80211_KEY_DATA,
2981 params->key_len, params->key)) ||
2982 (params->seq &&
2983 nla_put(cookie->msg, NL80211_KEY_SEQ,
2984 params->seq_len, params->seq)) ||
2985 (params->cipher &&
2986 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2987 params->cipher)))
2988 goto nla_put_failure;
b9454e83 2989
9360ffd1
DM		 2990 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2991 goto nla_put_failure;
b9454e83
JB		 2992
2993 nla_nest_end(cookie->msg, key);
2994
41ade00f
JB		 2995 return;
2996 nla_put_failure:
2997 cookie->error = 1;
2998}
2999
3000static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3001{
4c476991 3002 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3003 int err;
4c476991 3004 struct net_device *dev = info->user_ptr[1];
41ade00f 3005 u8 key_idx = 0;
e31b8213
JB		 3006 const u8 *mac_addr = NULL;
3007 bool pairwise;
41ade00f
JB		 3008 struct get_key_cookie cookie = {
3009 .error = 0,
3010 };
3011 void *hdr;
3012 struct sk_buff *msg;
3013
3014 if (info->attrs[NL80211_ATTR_KEY_IDX])
3015 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3016
3cfcf6ac 3017 if (key_idx > 5)
41ade00f
JB		 3018 return -EINVAL;
3019
3020 if (info->attrs[NL80211_ATTR_MAC])
3021 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3022
e31b8213
JB		 3023 pairwise = !!mac_addr;
3024 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3025 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
7a087e74 3026
e31b8213
JB		 3027 if (kt >= NUM_NL80211_KEYTYPES)
3028 return -EINVAL;
3029 if (kt != NL80211_KEYTYPE_GROUP &&
3030 kt != NL80211_KEYTYPE_PAIRWISE)
3031 return -EINVAL;
3032 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3033 }
3034
4c476991
JB		 3035 if (!rdev->ops->get_key)
3036 return -EOPNOTSUPP;
41ade00f 3037
0fa7b391
JB		 3038 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3039 return -ENOENT;
3040
fd2120ca 3041 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3042 if (!msg)
3043 return -ENOMEM;
41ade00f 3044
15e47304 3045 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 3046 NL80211_CMD_NEW_KEY);
cb35fba3 3047 if (!hdr)
9fe271af 3048 goto nla_put_failure;
41ade00f
JB		 3049
3050 cookie.msg = msg;
b9454e83 3051 cookie.idx = key_idx;
41ade00f 3052
9360ffd1
DM		 3053 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3054 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3055 goto nla_put_failure;
3056 if (mac_addr &&
3057 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3058 goto nla_put_failure;
41ade00f 3059
e35e4d28
HG		 3060 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3061 get_key_callback);
41ade00f
JB		 3062
3063 if (err)
6c95e2a2 3064 goto free_msg;
41ade00f
JB		 3065
3066 if (cookie.error)
3067 goto nla_put_failure;
3068
3069 genlmsg_end(msg, hdr);
4c476991 3070 return genlmsg_reply(msg, info);
41ade00f
JB		 3071
3072 nla_put_failure:
3073 err = -ENOBUFS;
6c95e2a2 3074 free_msg:
41ade00f 3075 nlmsg_free(msg);
41ade00f
JB		 3076 return err;
3077}
3078
3079static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3080{
4c476991 3081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 3082 struct key_parse key;
41ade00f 3083 int err;
4c476991 3084 struct net_device *dev = info->user_ptr[1];
41ade00f 3085
b9454e83
JB		 3086 err = nl80211_parse_key(info, &key);
3087 if (err)
3088 return err;
41ade00f 3089
b9454e83 3090 if (key.idx < 0)
41ade00f
JB		 3091 return -EINVAL;
3092
b9454e83
JB		 3093 /* only support setting default key */
3094 if (!key.def && !key.defmgmt)
41ade00f
JB		 3095 return -EINVAL;
3096
dbd2fd65 3097 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 3098
dbd2fd65
JB		 3099 if (key.def) {
3100 if (!rdev->ops->set_default_key) {
3101 err = -EOPNOTSUPP;
3102 goto out;
3103 }
41ade00f 3104
dbd2fd65
JB		 3105 err = nl80211_key_allowed(dev->ieee80211_ptr);
3106 if (err)
3107 goto out;
3108
e35e4d28 3109 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 3110 key.def_uni, key.def_multi);
3111
3112 if (err)
3113 goto out;
fffd0934 3114
3d23e349 3115#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 3116 dev->ieee80211_ptr->wext.default_key = key.idx;
3117#endif
3118 } else {
3119 if (key.def_uni || !key.def_multi) {
3120 err = -EINVAL;
3121 goto out;
3122 }
3123
3124 if (!rdev->ops->set_default_mgmt_key) {
3125 err = -EOPNOTSUPP;
3126 goto out;
3127 }
3128
3129 err = nl80211_key_allowed(dev->ieee80211_ptr);
3130 if (err)
3131 goto out;
3132
e35e4d28 3133 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 3134 if (err)
3135 goto out;
3136
3137#ifdef CONFIG_CFG80211_WEXT
3138 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3139#endif
dbd2fd65
JB		 3140 }
3141
3142 out:
fffd0934 3143 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3144
41ade00f
JB		 3145 return err;
3146}
3147
3148static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3149{
4c476991 3150 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3151 int err;
4c476991 3152 struct net_device *dev = info->user_ptr[1];
b9454e83 3153 struct key_parse key;
e31b8213 3154 const u8 *mac_addr = NULL;
41ade00f 3155
b9454e83
JB		 3156 err = nl80211_parse_key(info, &key);
3157 if (err)
3158 return err;
41ade00f 3159
b9454e83 3160 if (!key.p.key)
41ade00f
JB		 3161 return -EINVAL;
3162
41ade00f
JB		 3163 if (info->attrs[NL80211_ATTR_MAC])
3164 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3165
e31b8213
JB		 3166 if (key.type == -1) {
3167 if (mac_addr)
3168 key.type = NL80211_KEYTYPE_PAIRWISE;
3169 else
3170 key.type = NL80211_KEYTYPE_GROUP;
3171 }
3172
3173 /* for now */
3174 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3175 key.type != NL80211_KEYTYPE_GROUP)
3176 return -EINVAL;
3177
4c476991
JB		 3178 if (!rdev->ops->add_key)
3179 return -EOPNOTSUPP;
25e47c18 3180
e31b8213
JB		 3181 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3182 key.type == NL80211_KEYTYPE_PAIRWISE,
3183 mac_addr))
4c476991 3184 return -EINVAL;
41ade00f 3185
fffd0934
JB		 3186 wdev_lock(dev->ieee80211_ptr);
3187 err = nl80211_key_allowed(dev->ieee80211_ptr);
3188 if (!err)
e35e4d28
HG		 3189 err = rdev_add_key(rdev, dev, key.idx,
3190 key.type == NL80211_KEYTYPE_PAIRWISE,
3191 mac_addr, &key.p);
fffd0934 3192 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3193
41ade00f
JB		 3194 return err;
3195}
3196
3197static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3198{
4c476991 3199 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3200 int err;
4c476991 3201 struct net_device *dev = info->user_ptr[1];
41ade00f 3202 u8 *mac_addr = NULL;
b9454e83 3203 struct key_parse key;
41ade00f 3204
b9454e83
JB		 3205 err = nl80211_parse_key(info, &key);
3206 if (err)
3207 return err;
41ade00f
JB		 3208
3209 if (info->attrs[NL80211_ATTR_MAC])
3210 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3211
e31b8213
JB		 3212 if (key.type == -1) {
3213 if (mac_addr)
3214 key.type = NL80211_KEYTYPE_PAIRWISE;
3215 else
3216 key.type = NL80211_KEYTYPE_GROUP;
3217 }
3218
3219 /* for now */
3220 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3221 key.type != NL80211_KEYTYPE_GROUP)
3222 return -EINVAL;
3223
4c476991
JB		 3224 if (!rdev->ops->del_key)
3225 return -EOPNOTSUPP;
41ade00f 3226
fffd0934
JB		 3227 wdev_lock(dev->ieee80211_ptr);
3228 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3229
0fa7b391 3230 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3231 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3232 err = -ENOENT;
3233
fffd0934 3234 if (!err)
e35e4d28
HG		 3235 err = rdev_del_key(rdev, dev, key.idx,
3236 key.type == NL80211_KEYTYPE_PAIRWISE,
3237 mac_addr);
41ade00f 3238
3d23e349 3239#ifdef CONFIG_CFG80211_WEXT
08645126 3240 if (!err) {
b9454e83 3241 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3242 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3243 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3244 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3245 }
3246#endif
fffd0934 3247 wdev_unlock(dev->ieee80211_ptr);
08645126 3248
41ade00f
JB		 3249 return err;
3250}
3251
77765eaf
VT		 3252/* This function returns an error or the number of nested attributes */
3253static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3254{
3255 struct nlattr *attr;
3256 int n_entries = 0, tmp;
3257
3258 nla_for_each_nested(attr, nl_attr, tmp) {
3259 if (nla_len(attr) != ETH_ALEN)
3260 return -EINVAL;
3261
3262 n_entries++;
3263 }
3264
3265 return n_entries;
3266}
3267
3268/*
3269 * This function parses ACL information and allocates memory for ACL data.
3270 * On successful return, the calling function is responsible to free the
3271 * ACL buffer returned by this function.
3272 */
3273static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3274 struct genl_info *info)
3275{
3276 enum nl80211_acl_policy acl_policy;
3277 struct nlattr *attr;
3278 struct cfg80211_acl_data *acl;
3279 int i = 0, n_entries, tmp;
3280
3281 if (!wiphy->max_acl_mac_addrs)
3282 return ERR_PTR(-EOPNOTSUPP);
3283
3284 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3285 return ERR_PTR(-EINVAL);
3286
3287 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3288 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3289 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3290 return ERR_PTR(-EINVAL);
3291
3292 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3293 return ERR_PTR(-EINVAL);
3294
3295 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3296 if (n_entries < 0)
3297 return ERR_PTR(n_entries);
3298
3299 if (n_entries > wiphy->max_acl_mac_addrs)
3300 return ERR_PTR(-ENOTSUPP);
3301
3302 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3303 GFP_KERNEL);
3304 if (!acl)
3305 return ERR_PTR(-ENOMEM);
3306
3307 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3308 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3309 i++;
3310 }
3311
3312 acl->n_acl_entries = n_entries;
3313 acl->acl_policy = acl_policy;
3314
3315 return acl;
3316}
3317
3318static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3319{
3320 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3321 struct net_device *dev = info->user_ptr[1];
3322 struct cfg80211_acl_data *acl;
3323 int err;
3324
3325 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3326 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3327 return -EOPNOTSUPP;
3328
3329 if (!dev->ieee80211_ptr->beacon_interval)
3330 return -EINVAL;
3331
3332 acl = parse_acl_data(&rdev->wiphy, info);
3333 if (IS_ERR(acl))
3334 return PTR_ERR(acl);
3335
3336 err = rdev_set_mac_acl(rdev, dev, acl);
3337
3338 kfree(acl);
3339
3340 return err;
3341}
3342
a1193be8 3343static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3344 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3345{
8860020e 3346 bool haveinfo = false;
ed1b6cc7 3347
a1193be8
SW		 3348 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3349 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3350 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3351 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3352 return -EINVAL;
3353
8860020e 3354 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3355
a1193be8
SW		 3356 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3357 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3358 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3359 if (!bcn->head_len)
3360 return -EINVAL;
3361 haveinfo = true;
ed1b6cc7
JB		 3362 }
3363
a1193be8
SW		 3364 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3365 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3366 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3367 haveinfo = true;
ed1b6cc7
JB		 3368 }
3369
4c476991
JB		 3370 if (!haveinfo)
3371 return -EINVAL;
3b85875a 3372
a1193be8
SW		 3373 if (attrs[NL80211_ATTR_IE]) {
3374 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3375 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3376 }
3377
a1193be8 3378 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3379 bcn->proberesp_ies =
a1193be8 3380 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3381 bcn->proberesp_ies_len =
a1193be8 3382 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3383 }
3384
a1193be8 3385 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3386 bcn->assocresp_ies =
a1193be8 3387 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3388 bcn->assocresp_ies_len =
a1193be8 3389 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3390 }
3391
a1193be8
SW		 3392 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3393 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3394 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3395 }
3396
8860020e
JB		 3397 return 0;
3398}
3399
46c1dd0c
FF		 3400static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3401 struct cfg80211_ap_settings *params)
3402{
3403 struct wireless_dev *wdev;
3404 bool ret = false;
3405
53873f13 3406 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
46c1dd0c
FF		 3407 if (wdev->iftype != NL80211_IFTYPE_AP &&
3408 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3409 continue;
3410
683b6d3b 3411 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3412 continue;
3413
683b6d3b 3414 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3415 ret = true;
3416 break;
3417 }
3418
46c1dd0c
FF		 3419 return ret;
3420}
3421
e39e5b5e
JM		 3422static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3423 enum nl80211_auth_type auth_type,
3424 enum nl80211_commands cmd)
3425{
3426 if (auth_type > NL80211_AUTHTYPE_MAX)
3427 return false;
3428
3429 switch (cmd) {
3430 case NL80211_CMD_AUTHENTICATE:
3431 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3432 auth_type == NL80211_AUTHTYPE_SAE)
3433 return false;
3434 return true;
3435 case NL80211_CMD_CONNECT:
3436 case NL80211_CMD_START_AP:
3437 /* SAE not supported yet */
3438 if (auth_type == NL80211_AUTHTYPE_SAE)
3439 return false;
3440 return true;
3441 default:
3442 return false;
3443 }
3444}
3445
8860020e
JB		 3446static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3447{
3448 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3449 struct net_device *dev = info->user_ptr[1];
3450 struct wireless_dev *wdev = dev->ieee80211_ptr;
3451 struct cfg80211_ap_settings params;
3452 int err;
3453
3454 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3455 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3456 return -EOPNOTSUPP;
3457
3458 if (!rdev->ops->start_ap)
3459 return -EOPNOTSUPP;
3460
3461 if (wdev->beacon_interval)
3462 return -EALREADY;
3463
3464 memset(&params, 0, sizeof(params));
3465
3466 /* these are required for START_AP */
3467 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3468 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3469 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3470 return -EINVAL;
3471
a1193be8 3472 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3473 if (err)
3474 return err;
3475
3476 params.beacon_interval =
3477 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3478 params.dtim_period =
3479 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3480
3481 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3482 if (err)
3483 return err;
3484
3485 /*
3486 * In theory, some of these attributes should be required here
3487 * but since they were not used when the command was originally
3488 * added, keep them optional for old user space programs to let
3489 * them continue to work with drivers that do not need the
3490 * additional information -- drivers must check!
3491 */
3492 if (info->attrs[NL80211_ATTR_SSID]) {
3493 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3494 params.ssid_len =
3495 nla_len(info->attrs[NL80211_ATTR_SSID]);
3496 if (params.ssid_len == 0 ||
3497 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3498 return -EINVAL;
3499 }
3500
3501 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3502 params.hidden_ssid = nla_get_u32(
3503 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3504 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3505 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3506 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3507 return -EINVAL;
3508 }
3509
3510 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3511
3512 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3513 params.auth_type = nla_get_u32(
3514 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3515 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3516 NL80211_CMD_START_AP))
8860020e
JB		 3517 return -EINVAL;
3518 } else
3519 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3520
3521 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3522 NL80211_MAX_NR_CIPHER_SUITES);
3523 if (err)
3524 return err;
3525
1b658f11
VT		 3526 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3527 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3528 return -EOPNOTSUPP;
3529 params.inactivity_timeout = nla_get_u16(
3530 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3531 }
3532
53cabad7
JB		 3533 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3534 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3535 return -EINVAL;
3536 params.p2p_ctwindow =
3537 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3538 if (params.p2p_ctwindow > 127)
3539 return -EINVAL;
3540 if (params.p2p_ctwindow != 0 &&
3541 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3542 return -EINVAL;
3543 }
3544
3545 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3546 u8 tmp;
3547
3548 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3549 return -EINVAL;
3550 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3551 if (tmp > 1)
3552 return -EINVAL;
3553 params.p2p_opp_ps = tmp;
3554 if (params.p2p_opp_ps != 0 &&
3555 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3556 return -EINVAL;
3557 }
3558
aa430da4 3559 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3560 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3561 if (err)
3562 return err;
3563 } else if (wdev->preset_chandef.chan) {
3564 params.chandef = wdev->preset_chandef;
46c1dd0c 3565 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3566 return -EINVAL;
3567
923b352f
AN		 3568 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3569 wdev->iftype))
aa430da4
JB		 3570 return -EINVAL;
3571
18998c38
EP		 3572 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3573 params.smps_mode =
3574 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3575 switch (params.smps_mode) {
3576 case NL80211_SMPS_OFF:
3577 break;
3578 case NL80211_SMPS_STATIC:
3579 if (!(rdev->wiphy.features &
3580 NL80211_FEATURE_STATIC_SMPS))
3581 return -EINVAL;
3582 break;
3583 case NL80211_SMPS_DYNAMIC:
3584 if (!(rdev->wiphy.features &
3585 NL80211_FEATURE_DYNAMIC_SMPS))
3586 return -EINVAL;
3587 break;
3588 default:
3589 return -EINVAL;
3590 }
3591 } else {
3592 params.smps_mode = NL80211_SMPS_OFF;
3593 }
3594
6e8ef842
PK		 3595 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
3596 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
3597 return -EOPNOTSUPP;
3598
4baf6bea
OO		 3599 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3600 params.acl = parse_acl_data(&rdev->wiphy, info);
3601 if (IS_ERR(params.acl))
3602 return PTR_ERR(params.acl);
3603 }
3604
c56589ed 3605 wdev_lock(wdev);
e35e4d28 3606 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3607 if (!err) {
683b6d3b 3608 wdev->preset_chandef = params.chandef;
8860020e 3609 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3610 wdev->chandef = params.chandef;
06e191e2
AQ		 3611 wdev->ssid_len = params.ssid_len;
3612 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3613 }
c56589ed 3614 wdev_unlock(wdev);
77765eaf
VT		 3615
3616 kfree(params.acl);
3617
56d1893d 3618 return err;
ed1b6cc7
JB		 3619}
3620
8860020e
JB		 3621static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3622{
3623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3624 struct net_device *dev = info->user_ptr[1];
3625 struct wireless_dev *wdev = dev->ieee80211_ptr;
3626 struct cfg80211_beacon_data params;
3627 int err;
3628
3629 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3630 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3631 return -EOPNOTSUPP;
3632
3633 if (!rdev->ops->change_beacon)
3634 return -EOPNOTSUPP;
3635
3636 if (!wdev->beacon_interval)
3637 return -EINVAL;
3638
a1193be8 3639 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3640 if (err)
3641 return err;
3642
c56589ed
SW		 3643 wdev_lock(wdev);
3644 err = rdev_change_beacon(rdev, dev, &params);
3645 wdev_unlock(wdev);
3646
3647 return err;
8860020e
JB		 3648}
3649
3650static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3651{
4c476991
JB		 3652 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3653 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3654
7c8d5e03 3655 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3656}
3657
5727ef1b
JB		 3658static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3659 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3660 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3661 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3662 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3663 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3664 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3665};
3666
eccb8e8f 3667static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3668 enum nl80211_iftype iftype,
eccb8e8f 3669 struct station_parameters *params)
5727ef1b
JB		 3670{
3671 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3672 struct nlattr *nla;
5727ef1b
JB		 3673 int flag;
3674
eccb8e8f
JB		 3675 /*
3676 * Try parsing the new attribute first so userspace
3677 * can specify both for older kernels.
3678 */
3679 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3680 if (nla) {
3681 struct nl80211_sta_flag_update *sta_flags;
3682
3683 sta_flags = nla_data(nla);
3684 params->sta_flags_mask = sta_flags->mask;
3685 params->sta_flags_set = sta_flags->set;
77ee7c89 3686 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3687 if ((params->sta_flags_mask |
3688 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3689 return -EINVAL;
3690 return 0;
3691 }
3692
3693 /* if present, parse the old attribute */
5727ef1b 3694
eccb8e8f 3695 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3696 if (!nla)
3697 return 0;
3698
3699 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3700 nla, sta_flags_policy))
3701 return -EINVAL;
3702
bdd3ae3d
JB		 3703 /*
3704 * Only allow certain flags for interface types so that
3705 * other attributes are silently ignored. Remember that
3706 * this is backward compatibility code with old userspace
3707 * and shouldn't be hit in other cases anyway.
3708 */
3709 switch (iftype) {
3710 case NL80211_IFTYPE_AP:
3711 case NL80211_IFTYPE_AP_VLAN:
3712 case NL80211_IFTYPE_P2P_GO:
3713 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3714 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3715 BIT(NL80211_STA_FLAG_WME) |
3716 BIT(NL80211_STA_FLAG_MFP);
3717 break;
3718 case NL80211_IFTYPE_P2P_CLIENT:
3719 case NL80211_IFTYPE_STATION:
3720 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3721 BIT(NL80211_STA_FLAG_TDLS_PEER);
3722 break;
3723 case NL80211_IFTYPE_MESH_POINT:
3724 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3725 BIT(NL80211_STA_FLAG_MFP) |
3726 BIT(NL80211_STA_FLAG_AUTHORIZED);
3727 default:
3728 return -EINVAL;
3729 }
5727ef1b 3730
3383b5a6
JB		 3731 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3732 if (flags[flag]) {
eccb8e8f 3733 params->sta_flags_set |= (1<<flag);
5727ef1b 3734
3383b5a6
JB		 3735 /* no longer support new API additions in old API */
3736 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3737 return -EINVAL;
3738 }
3739 }
3740
5727ef1b
JB		 3741 return 0;
3742}
3743
c8dcfd8a
FF		 3744static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3745 int attr)
3746{
3747 struct nlattr *rate;
8eb41c8d
VK		 3748 u32 bitrate;
3749 u16 bitrate_compat;
b51f3bee 3750 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 3751
3752 rate = nla_nest_start(msg, attr);
3753 if (!rate)
db9c64cf 3754 return false;
c8dcfd8a
FF		 3755
3756 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3757 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3758 /* report 16-bit bitrate only if we can */
3759 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3760 if (bitrate > 0 &&
3761 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3762 return false;
3763 if (bitrate_compat > 0 &&
3764 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3765 return false;
3766
b51f3bee
JB		 3767 switch (info->bw) {
3768 case RATE_INFO_BW_5:
3769 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3770 break;
3771 case RATE_INFO_BW_10:
3772 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3773 break;
3774 default:
3775 WARN_ON(1);
3776 /* fall through */
3777 case RATE_INFO_BW_20:
3778 rate_flg = 0;
3779 break;
3780 case RATE_INFO_BW_40:
3781 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3782 break;
3783 case RATE_INFO_BW_80:
3784 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3785 break;
3786 case RATE_INFO_BW_160:
3787 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3788 break;
3789 }
3790
3791 if (rate_flg && nla_put_flag(msg, rate_flg))
3792 return false;
3793
db9c64cf
JB		 3794 if (info->flags & RATE_INFO_FLAGS_MCS) {
3795 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3796 return false;
db9c64cf
JB		 3797 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3798 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3799 return false;
3800 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3801 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3802 return false;
3803 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3804 return false;
db9c64cf
JB		 3805 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3806 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3807 return false;
3808 }
c8dcfd8a
FF		 3809
3810 nla_nest_end(msg, rate);
3811 return true;
c8dcfd8a
FF		 3812}
3813
119363c7
FF		 3814static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3815 int id)
3816{
3817 void *attr;
3818 int i = 0;
3819
3820 if (!mask)
3821 return true;
3822
3823 attr = nla_nest_start(msg, id);
3824 if (!attr)
3825 return false;
3826
3827 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3828 if (!(mask & BIT(i)))
3829 continue;
3830
3831 if (nla_put_u8(msg, i, signal[i]))
3832 return false;
3833 }
3834
3835 nla_nest_end(msg, attr);
3836
3837 return true;
3838}
3839
cf5ead82
JB		 3840static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3841 u32 seq, int flags,
66266b3a
JL		 3842 struct cfg80211_registered_device *rdev,
3843 struct net_device *dev,
98b62183 3844 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3845{
3846 void *hdr;
f4263c98 3847 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3848
cf5ead82 3849 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 3850 if (!hdr)
3851 return -1;
3852
9360ffd1
DM		 3853 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3854 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3855 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3856 goto nla_put_failure;
f5ea9120 3857
2ec600d6
LCC		 3858 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3859 if (!sinfoattr)
fd5b74dc 3860 goto nla_put_failure;
319090bf
JB		 3861
3862#define PUT_SINFO(attr, memb, type) do { \
d686b920 3863 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
739960f1 3864 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
319090bf
JB		 3865 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3866 sinfo->memb)) \
3867 goto nla_put_failure; \
3868 } while (0)
d686b920
JB		 3869#define PUT_SINFO_U64(attr, memb) do { \
3870 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
3871 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
3872 sinfo->memb, NL80211_STA_INFO_PAD)) \
3873 goto nla_put_failure; \
3874 } while (0)
319090bf
JB		 3875
3876 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3877 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3878
3879 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3880 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 3881 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3882 (u32)sinfo->rx_bytes))
9360ffd1 3883 goto nla_put_failure;
319090bf
JB		 3884
3885 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3886 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3887 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3888 (u32)sinfo->tx_bytes))
3889 goto nla_put_failure;
319090bf 3890
d686b920
JB		 3891 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
3892 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
319090bf
JB		 3893 PUT_SINFO(LLID, llid, u16);
3894 PUT_SINFO(PLID, plid, u16);
3895 PUT_SINFO(PLINK_STATE, plink_state, u8);
d686b920 3896 PUT_SINFO_U64(RX_DURATION, rx_duration);
319090bf 3897
66266b3a
JL		 3898 switch (rdev->wiphy.signal_type) {
3899 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 3900 PUT_SINFO(SIGNAL, signal, u8);
3901 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 3902 break;
3903 default:
3904 break;
3905 }
319090bf 3906 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 3907 if (!nl80211_put_signal(msg, sinfo->chains,
3908 sinfo->chain_signal,
3909 NL80211_STA_INFO_CHAIN_SIGNAL))
3910 goto nla_put_failure;
3911 }
319090bf 3912 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 3913 if (!nl80211_put_signal(msg, sinfo->chains,
3914 sinfo->chain_signal_avg,
3915 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3916 goto nla_put_failure;
3917 }
319090bf 3918 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 3919 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3920 NL80211_STA_INFO_TX_BITRATE))
3921 goto nla_put_failure;
3922 }
319090bf 3923 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 3924 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3925 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3926 goto nla_put_failure;
420e7fab 3927 }
319090bf
JB		 3928
3929 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3930 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3931 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3932 PUT_SINFO(TX_FAILED, tx_failed, u32);
3933 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3934 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3935 PUT_SINFO(LOCAL_PM, local_pm, u32);
3936 PUT_SINFO(PEER_PM, peer_pm, u32);
3937 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3938
3939 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 3940 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3941 if (!bss_param)
3942 goto nla_put_failure;
3943
9360ffd1
DM		 3944 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3945 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3946 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3947 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3948 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3949 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3950 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3951 sinfo->bss_param.dtim_period) ||
3952 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3953 sinfo->bss_param.beacon_interval))
3954 goto nla_put_failure;
f4263c98
PS		 3955
3956 nla_nest_end(msg, bss_param);
3957 }
319090bf 3958 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 3959 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3960 sizeof(struct nl80211_sta_flag_update),
3961 &sinfo->sta_flags))
3962 goto nla_put_failure;
319090bf 3963
d686b920
JB		 3964 PUT_SINFO_U64(T_OFFSET, t_offset);
3965 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
3966 PUT_SINFO_U64(BEACON_RX, rx_beacon);
a76b1942 3967 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 3968
3969#undef PUT_SINFO
d686b920 3970#undef PUT_SINFO_U64
6de39808
JB		 3971
3972 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3973 struct nlattr *tidsattr;
3974 int tid;
3975
3976 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3977 if (!tidsattr)
3978 goto nla_put_failure;
3979
3980 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3981 struct cfg80211_tid_stats *tidstats;
3982 struct nlattr *tidattr;
3983
3984 tidstats = &sinfo->pertid[tid];
3985
3986 if (!tidstats->filled)
3987 continue;
3988
3989 tidattr = nla_nest_start(msg, tid + 1);
3990 if (!tidattr)
3991 goto nla_put_failure;
3992
d686b920 3993#define PUT_TIDVAL_U64(attr, memb) do { \
6de39808 3994 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
d686b920
JB		 3995 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
3996 tidstats->memb, NL80211_TID_STATS_PAD)) \
6de39808
JB		 3997 goto nla_put_failure; \
3998 } while (0)
3999
d686b920
JB		 4000 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4001 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4002 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4003 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
6de39808 4004
d686b920 4005#undef PUT_TIDVAL_U64
6de39808
JB		 4006 nla_nest_end(msg, tidattr);
4007 }
4008
4009 nla_nest_end(msg, tidsattr);
4010 }
4011
2ec600d6 4012 nla_nest_end(msg, sinfoattr);
fd5b74dc 4013
319090bf 4014 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 4015 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4016 sinfo->assoc_req_ies))
4017 goto nla_put_failure;
50d3dfb7 4018
053c095a
JB		 4019 genlmsg_end(msg, hdr);
4020 return 0;
fd5b74dc
JB		 4021
4022 nla_put_failure:
bc3ed28c
TG		 4023 genlmsg_cancel(msg, hdr);
4024 return -EMSGSIZE;
fd5b74dc
JB		 4025}
4026
2ec600d6 4027static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 4028 struct netlink_callback *cb)
2ec600d6 4029{
2ec600d6 4030 struct station_info sinfo;
1b8ec87a 4031 struct cfg80211_registered_device *rdev;
97990a06 4032 struct wireless_dev *wdev;
2ec600d6 4033 u8 mac_addr[ETH_ALEN];
97990a06 4034 int sta_idx = cb->args[2];
2ec600d6 4035 int err;
2ec600d6 4036
1b8ec87a 4037 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4038 if (err)
4039 return err;
bba95fef 4040
97990a06
JB		 4041 if (!wdev->netdev) {
4042 err = -EINVAL;
4043 goto out_err;
4044 }
4045
1b8ec87a 4046 if (!rdev->ops->dump_station) {
eec60b03 4047 err = -EOPNOTSUPP;
bba95fef
JB		 4048 goto out_err;
4049 }
4050
bba95fef 4051 while (1) {
f612cedf 4052 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 4053 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 4054 mac_addr, &sinfo);
bba95fef
JB		 4055 if (err == -ENOENT)
4056 break;
4057 if (err)
3b85875a 4058 goto out_err;
bba95fef 4059
cf5ead82 4060 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 4061 NETLINK_CB(cb->skb).portid,
bba95fef 4062 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 4063 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 4064 &sinfo) < 0)
4065 goto out;
4066
4067 sta_idx++;
4068 }
4069
bba95fef 4070 out:
97990a06 4071 cb->args[2] = sta_idx;
bba95fef 4072 err = skb->len;
bba95fef 4073 out_err:
1b8ec87a 4074 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 4075
4076 return err;
2ec600d6 4077}
fd5b74dc 4078
5727ef1b
JB		 4079static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4080{
4c476991
JB		 4081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4082 struct net_device *dev = info->user_ptr[1];
2ec600d6 4083 struct station_info sinfo;
fd5b74dc
JB		 4084 struct sk_buff *msg;
4085 u8 *mac_addr = NULL;
4c476991 4086 int err;
fd5b74dc 4087
2ec600d6 4088 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 4089
4090 if (!info->attrs[NL80211_ATTR_MAC])
4091 return -EINVAL;
4092
4093 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4094
4c476991
JB		 4095 if (!rdev->ops->get_station)
4096 return -EOPNOTSUPP;
3b85875a 4097
e35e4d28 4098 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 4099 if (err)
4c476991 4100 return err;
2ec600d6 4101
fd2120ca 4102 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 4103 if (!msg)
4c476991 4104 return -ENOMEM;
fd5b74dc 4105
cf5ead82
JB		 4106 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4107 info->snd_portid, info->snd_seq, 0,
66266b3a 4108 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 4109 nlmsg_free(msg);
4110 return -ENOBUFS;
4111 }
3b85875a 4112
4c476991 4113 return genlmsg_reply(msg, info);
5727ef1b
JB		 4114}
4115
77ee7c89
JB		 4116int cfg80211_check_station_change(struct wiphy *wiphy,
4117 struct station_parameters *params,
4118 enum cfg80211_station_type statype)
4119{
e4208427
AB		 4120 if (params->listen_interval != -1 &&
4121 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4122 return -EINVAL;
e4208427 4123
17b94247
AB		 4124 if (params->support_p2p_ps != -1 &&
4125 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4126 return -EINVAL;
4127
c72e1140 4128 if (params->aid &&
e4208427
AB		 4129 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4130 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4131 return -EINVAL;
4132
4133 /* When you run into this, adjust the code below for the new flag */
4134 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4135
4136 switch (statype) {
eef941e6
TP		 4137 case CFG80211_STA_MESH_PEER_KERNEL:
4138 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4139 /*
4140 * No ignoring the TDLS flag here -- the userspace mesh
4141 * code doesn't have the bug of including TDLS in the
4142 * mask everywhere.
4143 */
4144 if (params->sta_flags_mask &
4145 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4146 BIT(NL80211_STA_FLAG_MFP) |
4147 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4148 return -EINVAL;
4149 break;
4150 case CFG80211_STA_TDLS_PEER_SETUP:
4151 case CFG80211_STA_TDLS_PEER_ACTIVE:
4152 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4153 return -EINVAL;
4154 /* ignore since it can't change */
4155 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4156 break;
4157 default:
4158 /* disallow mesh-specific things */
4159 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4160 return -EINVAL;
4161 if (params->local_pm)
4162 return -EINVAL;
4163 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4164 return -EINVAL;
4165 }
4166
4167 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4168 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4169 /* TDLS can't be set, ... */
4170 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4171 return -EINVAL;
4172 /*
4173 * ... but don't bother the driver with it. This works around
4174 * a hostapd/wpa_supplicant issue -- it always includes the
4175 * TLDS_PEER flag in the mask even for AP mode.
4176 */
4177 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4178 }
4179
47edb11b
AB		 4180 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4181 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4182 /* reject other things that can't change */
4183 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4184 return -EINVAL;
4185 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4186 return -EINVAL;
4187 if (params->supported_rates)
4188 return -EINVAL;
4189 if (params->ext_capab || params->ht_capa || params->vht_capa)
4190 return -EINVAL;
4191 }
4192
47edb11b
AB		 4193 if (statype != CFG80211_STA_AP_CLIENT &&
4194 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4195 if (params->vlan)
4196 return -EINVAL;
4197 }
4198
4199 switch (statype) {
4200 case CFG80211_STA_AP_MLME_CLIENT:
4201 /* Use this only for authorizing/unauthorizing a station */
4202 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4203 return -EOPNOTSUPP;
4204 break;
4205 case CFG80211_STA_AP_CLIENT:
47edb11b 4206 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4207 /* accept only the listed bits */
4208 if (params->sta_flags_mask &
4209 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4210 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4211 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4212 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4213 BIT(NL80211_STA_FLAG_WME) |
4214 BIT(NL80211_STA_FLAG_MFP)))
4215 return -EINVAL;
4216
4217 /* but authenticated/associated only if driver handles it */
4218 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4219 params->sta_flags_mask &
4220 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4221 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4222 return -EINVAL;
4223 break;
4224 case CFG80211_STA_IBSS:
4225 case CFG80211_STA_AP_STA:
4226 /* reject any changes other than AUTHORIZED */
4227 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4228 return -EINVAL;
4229 break;
4230 case CFG80211_STA_TDLS_PEER_SETUP:
4231 /* reject any changes other than AUTHORIZED or WME */
4232 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4233 BIT(NL80211_STA_FLAG_WME)))
4234 return -EINVAL;
4235 /* force (at least) rates when authorizing */
4236 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4237 !params->supported_rates)
4238 return -EINVAL;
4239 break;
4240 case CFG80211_STA_TDLS_PEER_ACTIVE:
4241 /* reject any changes */
4242 return -EINVAL;
eef941e6 4243 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4244 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4245 return -EINVAL;
4246 break;
eef941e6 4247 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4248 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4249 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4250 return -EINVAL;
4251 break;
4252 }
4253
4254 return 0;
4255}
4256EXPORT_SYMBOL(cfg80211_check_station_change);
4257
5727ef1b 4258/*
c258d2de 4259 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4260 */
80b99899
JB		 4261static struct net_device *get_vlan(struct genl_info *info,
4262 struct cfg80211_registered_device *rdev)
5727ef1b 4263{
463d0183 4264 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4265 struct net_device *v;
4266 int ret;
4267
4268 if (!vlanattr)
4269 return NULL;
4270
4271 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4272 if (!v)
4273 return ERR_PTR(-ENODEV);
4274
4275 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4276 ret = -EINVAL;
4277 goto error;
5727ef1b 4278 }
80b99899 4279
77ee7c89
JB		 4280 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4281 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4282 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4283 ret = -EINVAL;
4284 goto error;
4285 }
4286
80b99899
JB		 4287 if (!netif_running(v)) {
4288 ret = -ENETDOWN;
4289 goto error;
4290 }
4291
4292 return v;
4293 error:
4294 dev_put(v);
4295 return ERR_PTR(ret);
5727ef1b
JB		 4296}
4297
94e860f1
JB		 4298static const struct nla_policy
4299nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4300 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4301 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4302};
4303
ff276691
JB		 4304static int nl80211_parse_sta_wme(struct genl_info *info,
4305 struct station_parameters *params)
df881293 4306{
df881293
JM		 4307 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4308 struct nlattr *nla;
4309 int err;
4310
df881293
JM		 4311 /* parse WME attributes if present */
4312 if (!info->attrs[NL80211_ATTR_STA_WME])
4313 return 0;
4314
4315 nla = info->attrs[NL80211_ATTR_STA_WME];
4316 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4317 nl80211_sta_wme_policy);
4318 if (err)
4319 return err;
4320
4321 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4322 params->uapsd_queues = nla_get_u8(
4323 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4324 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4325 return -EINVAL;
4326
4327 if (tb[NL80211_STA_WME_MAX_SP])
4328 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4329
4330 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4331 return -EINVAL;
4332
4333 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4334
4335 return 0;
4336}
4337
c01fc9ad
SD		 4338static int nl80211_parse_sta_channel_info(struct genl_info *info,
4339 struct station_parameters *params)
4340{
4341 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4342 params->supported_channels =
4343 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4344 params->supported_channels_len =
4345 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4346 /*
4347 * Need to include at least one (first channel, number of
4348 * channels) tuple for each subband, and must have proper
4349 * tuples for the rest of the data as well.
4350 */
4351 if (params->supported_channels_len < 2)
4352 return -EINVAL;
4353 if (params->supported_channels_len % 2)
4354 return -EINVAL;
4355 }
4356
4357 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4358 params->supported_oper_classes =
4359 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4360 params->supported_oper_classes_len =
4361 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4362 /*
4363 * The value of the Length field of the Supported Operating
4364 * Classes element is between 2 and 253.
4365 */
4366 if (params->supported_oper_classes_len < 2 ||
4367 params->supported_oper_classes_len > 253)
4368 return -EINVAL;
4369 }
4370 return 0;
4371}
4372
ff276691
JB		 4373static int nl80211_set_station_tdls(struct genl_info *info,
4374 struct station_parameters *params)
4375{
c01fc9ad 4376 int err;
ff276691 4377 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4378 if (info->attrs[NL80211_ATTR_PEER_AID])
4379 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4380 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4381 params->ht_capa =
4382 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4383 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4384 params->vht_capa =
4385 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4386
c01fc9ad
SD		 4387 err = nl80211_parse_sta_channel_info(info, params);
4388 if (err)
4389 return err;
4390
ff276691
JB		 4391 return nl80211_parse_sta_wme(info, params);
4392}
4393
5727ef1b
JB		 4394static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4395{
4c476991 4396 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4397 struct net_device *dev = info->user_ptr[1];
5727ef1b 4398 struct station_parameters params;
77ee7c89
JB		 4399 u8 *mac_addr;
4400 int err;
5727ef1b
JB		 4401
4402 memset(&params, 0, sizeof(params));
4403
77ee7c89
JB		 4404 if (!rdev->ops->change_station)
4405 return -EOPNOTSUPP;
4406
e4208427
AB		 4407 /*
4408 * AID and listen_interval properties can be set only for unassociated
4409 * station. Include these parameters here and will check them in
4410 * cfg80211_check_station_change().
4411 */
a9bc31e4
AB		 4412 if (info->attrs[NL80211_ATTR_STA_AID])
4413 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4414
4415 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4416 params.listen_interval =
4417 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4418 else
4419 params.listen_interval = -1;
5727ef1b 4420
17b94247
AB		 4421 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4422 u8 tmp;
4423
4424 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4425 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4426 return -EINVAL;
4427
4428 params.support_p2p_ps = tmp;
4429 } else {
4430 params.support_p2p_ps = -1;
4431 }
4432
5727ef1b
JB		 4433 if (!info->attrs[NL80211_ATTR_MAC])
4434 return -EINVAL;
4435
4436 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4437
4438 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4439 params.supported_rates =
4440 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4441 params.supported_rates_len =
4442 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4443 }
4444
9d62a986
JM		 4445 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4446 params.capability =
4447 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4448 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4449 }
4450
4451 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4452 params.ext_capab =
4453 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4454 params.ext_capab_len =
4455 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4456 }
4457
bdd3ae3d 4458 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4459 return -EINVAL;
4460
f8bacc21 4461 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4462 params.plink_action =
f8bacc21
JB		 4463 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4464 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4465 return -EINVAL;
4466 }
2ec600d6 4467
f8bacc21 4468 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4469 params.plink_state =
f8bacc21
JB		 4470 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4471 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4472 return -EINVAL;
7d27a0ba
MH		 4473 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4474 params.peer_aid = nla_get_u16(
4475 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4476 if (params.peer_aid > IEEE80211_MAX_AID)
4477 return -EINVAL;
4478 }
f8bacc21
JB		 4479 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4480 }
9c3990aa 4481
3b1c5a53
MP		 4482 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4483 enum nl80211_mesh_power_mode pm = nla_get_u32(
4484 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4485
4486 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4487 pm > NL80211_MESH_POWER_MAX)
4488 return -EINVAL;
4489
4490 params.local_pm = pm;
4491 }
4492
77ee7c89
JB		 4493 /* Include parameters for TDLS peer (will check later) */
4494 err = nl80211_set_station_tdls(info, &params);
4495 if (err)
4496 return err;
4497
4498 params.vlan = get_vlan(info, rdev);
4499 if (IS_ERR(params.vlan))
4500 return PTR_ERR(params.vlan);
4501
a97f4424
JB		 4502 switch (dev->ieee80211_ptr->iftype) {
4503 case NL80211_IFTYPE_AP:
4504 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4505 case NL80211_IFTYPE_P2P_GO:
074ac8df 4506 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4507 case NL80211_IFTYPE_STATION:
267335d6 4508 case NL80211_IFTYPE_ADHOC:
a97f4424 4509 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4510 break;
4511 default:
77ee7c89
JB		 4512 err = -EOPNOTSUPP;
4513 goto out_put_vlan;
034d655e
JB		 4514 }
4515
77ee7c89 4516 /* driver will call cfg80211_check_station_change() */
e35e4d28 4517 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4518
77ee7c89 4519 out_put_vlan:
5727ef1b
JB		 4520 if (params.vlan)
4521 dev_put(params.vlan);
3b85875a 4522
5727ef1b
JB		 4523 return err;
4524}
4525
4526static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4527{
4c476991 4528 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4529 int err;
4c476991 4530 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4531 struct station_parameters params;
4532 u8 *mac_addr = NULL;
bda95eb1
JB		 4533 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4534 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 4535
4536 memset(&params, 0, sizeof(params));
4537
984c311b
JB		 4538 if (!rdev->ops->add_station)
4539 return -EOPNOTSUPP;
4540
5727ef1b
JB		 4541 if (!info->attrs[NL80211_ATTR_MAC])
4542 return -EINVAL;
4543
5727ef1b
JB		 4544 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4545 return -EINVAL;
4546
4547 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4548 return -EINVAL;
4549
5e4b6f56
JM		 4550 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4551 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4552 return -EINVAL;
4553
5727ef1b
JB		 4554 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4555 params.supported_rates =
4556 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4557 params.supported_rates_len =
4558 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4559 params.listen_interval =
4560 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4561
17b94247
AB		 4562 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4563 u8 tmp;
4564
4565 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4566 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4567 return -EINVAL;
4568
4569 params.support_p2p_ps = tmp;
4570 } else {
4571 /*
4572 * if not specified, assume it's supported for P2P GO interface,
4573 * and is NOT supported for AP interface
4574 */
4575 params.support_p2p_ps =
4576 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
4577 }
4578
3d124ea2 4579 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4580 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4581 else
4582 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4583 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4584 return -EINVAL;
51b50fbe 4585
9d62a986
JM		 4586 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4587 params.capability =
4588 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4589 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4590 }
4591
4592 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4593 params.ext_capab =
4594 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4595 params.ext_capab_len =
4596 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4597 }
4598
36aedc90
JM		 4599 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4600 params.ht_capa =
4601 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4602
f461be3e
MP		 4603 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4604 params.vht_capa =
4605 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4606
60f4a7b1
MK		 4607 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4608 params.opmode_notif_used = true;
4609 params.opmode_notif =
4610 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4611 }
4612
f8bacc21 4613 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4614 params.plink_action =
f8bacc21
JB		 4615 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4616 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4617 return -EINVAL;
4618 }
96b78dff 4619
c01fc9ad
SD		 4620 err = nl80211_parse_sta_channel_info(info, &params);
4621 if (err)
4622 return err;
4623
ff276691
JB		 4624 err = nl80211_parse_sta_wme(info, &params);
4625 if (err)
4626 return err;
bdd90d5e 4627
bdd3ae3d 4628 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4629 return -EINVAL;
4630
496fcc29
JB		 4631 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4632 * as userspace might just pass through the capabilities from the IEs
4633 * directly, rather than enforcing this restriction and returning an
4634 * error in this case.
4635 */
4636 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4637 params.ht_capa = NULL;
4638 params.vht_capa = NULL;
4639 }
4640
77ee7c89
JB		 4641 /* When you run into this, adjust the code below for the new flag */
4642 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4643
bdd90d5e
JB		 4644 switch (dev->ieee80211_ptr->iftype) {
4645 case NL80211_IFTYPE_AP:
4646 case NL80211_IFTYPE_AP_VLAN:
4647 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4648 /* ignore WME attributes if iface/sta is not capable */
4649 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4650 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4651 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4652
bdd90d5e 4653 /* TDLS peers cannot be added */
3d124ea2
JM		 4654 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4655 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4656 return -EINVAL;
bdd90d5e
JB		 4657 /* but don't bother the driver with it */
4658 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4659
d582cffb
JB		 4660 /* allow authenticated/associated only if driver handles it */
4661 if (!(rdev->wiphy.features &
4662 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 4663 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 4664 return -EINVAL;
4665
bda95eb1
JB		 4666 /* Older userspace, or userspace wanting to be compatible with
4667 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
4668 * and assoc flags in the mask, but assumes the station will be
4669 * added as associated anyway since this was the required driver
4670 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
4671 * introduced.
4672 * In order to not bother drivers with this quirk in the API
4673 * set the flags in both the mask and set for new stations in
4674 * this case.
4675 */
4676 if (!(params.sta_flags_mask & auth_assoc)) {
4677 params.sta_flags_mask |= auth_assoc;
4678 params.sta_flags_set |= auth_assoc;
4679 }
4680
bdd90d5e
JB		 4681 /* must be last in here for error handling */
4682 params.vlan = get_vlan(info, rdev);
4683 if (IS_ERR(params.vlan))
4684 return PTR_ERR(params.vlan);
4685 break;
4686 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4687 /* ignore uAPSD data */
4688 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4689
d582cffb
JB		 4690 /* associated is disallowed */
4691 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4692 return -EINVAL;
bdd90d5e 4693 /* TDLS peers cannot be added */
3d124ea2
JM		 4694 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4695 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4696 return -EINVAL;
4697 break;
4698 case NL80211_IFTYPE_STATION:
93d08f0b 4699 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4700 /* ignore uAPSD data */
4701 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4702
77ee7c89
JB		 4703 /* these are disallowed */
4704 if (params.sta_flags_mask &
4705 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4706 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4707 return -EINVAL;
bdd90d5e
JB		 4708 /* Only TDLS peers can be added */
4709 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4710 return -EINVAL;
4711 /* Can only add if TDLS ... */
4712 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4713 return -EOPNOTSUPP;
4714 /* ... with external setup is supported */
4715 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4716 return -EOPNOTSUPP;
77ee7c89
JB		 4717 /*
4718 * Older wpa_supplicant versions always mark the TDLS peer
4719 * as authorized, but it shouldn't yet be.
4720 */
4721 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4722 break;
4723 default:
4724 return -EOPNOTSUPP;
c75786c9
EP		 4725 }
4726
bdd90d5e 4727 /* be aware of params.vlan when changing code here */
5727ef1b 4728
e35e4d28 4729 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4730
5727ef1b
JB		 4731 if (params.vlan)
4732 dev_put(params.vlan);
5727ef1b
JB		 4733 return err;
4734}
4735
4736static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4737{
4c476991
JB		 4738 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4739 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4740 struct station_del_parameters params;
4741
4742 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4743
4744 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4745 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4746
e80cf853 4747 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4748 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4749 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4750 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4751 return -EINVAL;
5727ef1b 4752
4c476991
JB		 4753 if (!rdev->ops->del_station)
4754 return -EOPNOTSUPP;
3b85875a 4755
98856866
JM		 4756 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4757 params.subtype =
4758 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4759 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4760 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4761 return -EINVAL;
4762 } else {
4763 /* Default to Deauthentication frame */
4764 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4765 }
4766
4767 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4768 params.reason_code =
4769 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4770 if (params.reason_code == 0)
4771 return -EINVAL; /* 0 is reserved */
4772 } else {
4773 /* Default to reason code 2 */
4774 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4775 }
4776
89c771e5 4777 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4778}
4779
15e47304 4780static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4781 int flags, struct net_device *dev,
4782 u8 *dst, u8 *next_hop,
4783 struct mpath_info *pinfo)
4784{
4785 void *hdr;
4786 struct nlattr *pinfoattr;
4787
1ef4c850 4788 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4789 if (!hdr)
4790 return -1;
4791
9360ffd1
DM		 4792 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4793 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4794 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4795 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4796 goto nla_put_failure;
f5ea9120 4797
2ec600d6
LCC		 4798 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4799 if (!pinfoattr)
4800 goto nla_put_failure;
9360ffd1
DM		 4801 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4802 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4803 pinfo->frame_qlen))
4804 goto nla_put_failure;
4805 if (((pinfo->filled & MPATH_INFO_SN) &&
4806 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4807 ((pinfo->filled & MPATH_INFO_METRIC) &&
4808 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4809 pinfo->metric)) ||
4810 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4811 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4812 pinfo->exptime)) ||
4813 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4814 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4815 pinfo->flags)) ||
4816 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4817 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4818 pinfo->discovery_timeout)) ||
4819 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4820 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4821 pinfo->discovery_retries)))
4822 goto nla_put_failure;
2ec600d6
LCC		 4823
4824 nla_nest_end(msg, pinfoattr);
4825
053c095a
JB		 4826 genlmsg_end(msg, hdr);
4827 return 0;
2ec600d6
LCC		 4828
4829 nla_put_failure:
bc3ed28c
TG		 4830 genlmsg_cancel(msg, hdr);
4831 return -EMSGSIZE;
2ec600d6
LCC		 4832}
4833
4834static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4835 struct netlink_callback *cb)
2ec600d6 4836{
2ec600d6 4837 struct mpath_info pinfo;
1b8ec87a 4838 struct cfg80211_registered_device *rdev;
97990a06 4839 struct wireless_dev *wdev;
2ec600d6
LCC		 4840 u8 dst[ETH_ALEN];
4841 u8 next_hop[ETH_ALEN];
97990a06 4842 int path_idx = cb->args[2];
2ec600d6 4843 int err;
2ec600d6 4844
1b8ec87a 4845 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4846 if (err)
4847 return err;
bba95fef 4848
1b8ec87a 4849 if (!rdev->ops->dump_mpath) {
eec60b03 4850 err = -EOPNOTSUPP;
bba95fef
JB		 4851 goto out_err;
4852 }
4853
97990a06 4854 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4855 err = -EOPNOTSUPP;
0448b5fc 4856 goto out_err;
eec60b03
JM		 4857 }
4858
bba95fef 4859 while (1) {
1b8ec87a 4860 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4861 next_hop, &pinfo);
bba95fef 4862 if (err == -ENOENT)
2ec600d6 4863 break;
bba95fef 4864 if (err)
3b85875a 4865 goto out_err;
2ec600d6 4866
15e47304 4867 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4868 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4869 wdev->netdev, dst, next_hop,
bba95fef
JB		 4870 &pinfo) < 0)
4871 goto out;
2ec600d6 4872
bba95fef 4873 path_idx++;
2ec600d6 4874 }
2ec600d6 4875
bba95fef 4876 out:
97990a06 4877 cb->args[2] = path_idx;
bba95fef 4878 err = skb->len;
bba95fef 4879 out_err:
1b8ec87a 4880 nl80211_finish_wdev_dump(rdev);
bba95fef 4881 return err;
2ec600d6
LCC		 4882}
4883
4884static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4885{
4c476991 4886 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4887 int err;
4c476991 4888 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4889 struct mpath_info pinfo;
4890 struct sk_buff *msg;
4891 u8 *dst = NULL;
4892 u8 next_hop[ETH_ALEN];
4893
4894 memset(&pinfo, 0, sizeof(pinfo));
4895
4896 if (!info->attrs[NL80211_ATTR_MAC])
4897 return -EINVAL;
4898
4899 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4900
4c476991
JB		 4901 if (!rdev->ops->get_mpath)
4902 return -EOPNOTSUPP;
2ec600d6 4903
4c476991
JB		 4904 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4905 return -EOPNOTSUPP;
eec60b03 4906
e35e4d28 4907 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4908 if (err)
4c476991 4909 return err;
2ec600d6 4910
fd2120ca 4911 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4912 if (!msg)
4c476991 4913 return -ENOMEM;
2ec600d6 4914
15e47304 4915 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4916 dev, dst, next_hop, &pinfo) < 0) {
4917 nlmsg_free(msg);
4918 return -ENOBUFS;
4919 }
3b85875a 4920
4c476991 4921 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4922}
4923
4924static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4925{
4c476991
JB		 4926 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4927 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4928 u8 *dst = NULL;
4929 u8 *next_hop = NULL;
4930
4931 if (!info->attrs[NL80211_ATTR_MAC])
4932 return -EINVAL;
4933
4934 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4935 return -EINVAL;
4936
4937 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4938 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4939
4c476991
JB		 4940 if (!rdev->ops->change_mpath)
4941 return -EOPNOTSUPP;
35a8efe1 4942
4c476991
JB		 4943 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4944 return -EOPNOTSUPP;
2ec600d6 4945
e35e4d28 4946 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4947}
4c476991 4948
2ec600d6
LCC		 4949static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4950{
4c476991
JB		 4951 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4952 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4953 u8 *dst = NULL;
4954 u8 *next_hop = NULL;
4955
4956 if (!info->attrs[NL80211_ATTR_MAC])
4957 return -EINVAL;
4958
4959 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4960 return -EINVAL;
4961
4962 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4963 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4964
4c476991
JB		 4965 if (!rdev->ops->add_mpath)
4966 return -EOPNOTSUPP;
35a8efe1 4967
4c476991
JB		 4968 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4969 return -EOPNOTSUPP;
2ec600d6 4970
e35e4d28 4971 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4972}
4973
4974static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4975{
4c476991
JB		 4976 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4977 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4978 u8 *dst = NULL;
4979
4980 if (info->attrs[NL80211_ATTR_MAC])
4981 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4982
4c476991
JB		 4983 if (!rdev->ops->del_mpath)
4984 return -EOPNOTSUPP;
3b85875a 4985
e35e4d28 4986 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4987}
4988
66be7d2b
HR		 4989static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4990{
4991 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4992 int err;
4993 struct net_device *dev = info->user_ptr[1];
4994 struct mpath_info pinfo;
4995 struct sk_buff *msg;
4996 u8 *dst = NULL;
4997 u8 mpp[ETH_ALEN];
4998
4999 memset(&pinfo, 0, sizeof(pinfo));
5000
5001 if (!info->attrs[NL80211_ATTR_MAC])
5002 return -EINVAL;
5003
5004 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5005
5006 if (!rdev->ops->get_mpp)
5007 return -EOPNOTSUPP;
5008
5009 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5010 return -EOPNOTSUPP;
5011
5012 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5013 if (err)
5014 return err;
5015
5016 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5017 if (!msg)
5018 return -ENOMEM;
5019
5020 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5021 dev, dst, mpp, &pinfo) < 0) {
5022 nlmsg_free(msg);
5023 return -ENOBUFS;
5024 }
5025
5026 return genlmsg_reply(msg, info);
5027}
5028
5029static int nl80211_dump_mpp(struct sk_buff *skb,
5030 struct netlink_callback *cb)
5031{
5032 struct mpath_info pinfo;
5033 struct cfg80211_registered_device *rdev;
5034 struct wireless_dev *wdev;
5035 u8 dst[ETH_ALEN];
5036 u8 mpp[ETH_ALEN];
5037 int path_idx = cb->args[2];
5038 int err;
5039
5040 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5041 if (err)
5042 return err;
5043
5044 if (!rdev->ops->dump_mpp) {
5045 err = -EOPNOTSUPP;
5046 goto out_err;
5047 }
5048
5049 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5050 err = -EOPNOTSUPP;
5051 goto out_err;
5052 }
5053
5054 while (1) {
5055 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5056 mpp, &pinfo);
5057 if (err == -ENOENT)
5058 break;
5059 if (err)
5060 goto out_err;
5061
5062 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5063 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5064 wdev->netdev, dst, mpp,
5065 &pinfo) < 0)
5066 goto out;
5067
5068 path_idx++;
5069 }
5070
5071 out:
5072 cb->args[2] = path_idx;
5073 err = skb->len;
5074 out_err:
5075 nl80211_finish_wdev_dump(rdev);
5076 return err;
5077}
5078
9f1ba906
JM		 5079static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5080{
4c476991
JB		 5081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5082 struct net_device *dev = info->user_ptr[1];
c56589ed 5083 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 5084 struct bss_parameters params;
c56589ed 5085 int err;
9f1ba906
JM		 5086
5087 memset(&params, 0, sizeof(params));
5088 /* default to not changing parameters */
5089 params.use_cts_prot = -1;
5090 params.use_short_preamble = -1;
5091 params.use_short_slot_time = -1;
fd8aaaf3 5092 params.ap_isolate = -1;
50b12f59 5093 params.ht_opmode = -1;
53cabad7
JB		 5094 params.p2p_ctwindow = -1;
5095 params.p2p_opp_ps = -1;
9f1ba906
JM		 5096
5097 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5098 params.use_cts_prot =
5099 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5100 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5101 params.use_short_preamble =
5102 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5103 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5104 params.use_short_slot_time =
5105 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 5106 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5107 params.basic_rates =
5108 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5109 params.basic_rates_len =
5110 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5111 }
fd8aaaf3
FF		 5112 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5113 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 5114 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5115 params.ht_opmode =
5116 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 5117
53cabad7
JB		 5118 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5119 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5120 return -EINVAL;
5121 params.p2p_ctwindow =
5122 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5123 if (params.p2p_ctwindow < 0)
5124 return -EINVAL;
5125 if (params.p2p_ctwindow != 0 &&
5126 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5127 return -EINVAL;
5128 }
5129
5130 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5131 u8 tmp;
5132
5133 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5134 return -EINVAL;
5135 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5136 if (tmp > 1)
5137 return -EINVAL;
5138 params.p2p_opp_ps = tmp;
5139 if (params.p2p_opp_ps &&
5140 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5141 return -EINVAL;
5142 }
5143
4c476991
JB		 5144 if (!rdev->ops->change_bss)
5145 return -EOPNOTSUPP;
9f1ba906 5146
074ac8df 5147 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5148 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5149 return -EOPNOTSUPP;
3b85875a 5150
c56589ed
SW		 5151 wdev_lock(wdev);
5152 err = rdev_change_bss(rdev, dev, &params);
5153 wdev_unlock(wdev);
5154
5155 return err;
9f1ba906
JM		 5156}
5157
b2e1b302
LR		 5158static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5159{
b2e1b302 5160 char *data = NULL;
05050753 5161 bool is_indoor;
57b5ce07 5162 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5163 u32 owner_nlportid;
5164
80778f18
LR		 5165 /*
5166 * You should only get this when cfg80211 hasn't yet initialized
5167 * completely when built-in to the kernel right between the time
5168 * window between nl80211_init() and regulatory_init(), if that is
5169 * even possible.
5170 */
458f4f9e 5171 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5172 return -EINPROGRESS;
80778f18 5173
57b5ce07
LR		 5174 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5175 user_reg_hint_type =
5176 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5177 else
5178 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5179
5180 switch (user_reg_hint_type) {
5181 case NL80211_USER_REG_HINT_USER:
5182 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5183 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5184 return -EINVAL;
5185
5186 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5187 return regulatory_hint_user(data, user_reg_hint_type);
5188 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5189 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5190 owner_nlportid = info->snd_portid;
5191 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5192 } else {
5193 owner_nlportid = 0;
5194 is_indoor = true;
5195 }
5196
5197 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5198 default:
5199 return -EINVAL;
5200 }
b2e1b302
LR		 5201}
5202
24bdd9f4 5203static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5204 struct genl_info *info)
93da9cc1 5205{
4c476991 5206 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5207 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5208 struct wireless_dev *wdev = dev->ieee80211_ptr;
5209 struct mesh_config cur_params;
5210 int err = 0;
93da9cc1 5211 void *hdr;
5212 struct nlattr *pinfoattr;
5213 struct sk_buff *msg;
5214
29cbe68c
JB		 5215 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5216 return -EOPNOTSUPP;
5217
24bdd9f4 5218 if (!rdev->ops->get_mesh_config)
4c476991 5219 return -EOPNOTSUPP;
f3f92586 5220
29cbe68c
JB		 5221 wdev_lock(wdev);
5222 /* If not connected, get default parameters */
5223 if (!wdev->mesh_id_len)
5224 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5225 else
e35e4d28 5226 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5227 wdev_unlock(wdev);
5228
93da9cc1 5229 if (err)
4c476991 5230 return err;
93da9cc1 5231
5232 /* Draw up a netlink message to send back */
fd2120ca 5233 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5234 if (!msg)
5235 return -ENOMEM;
15e47304 5236 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5237 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5238 if (!hdr)
efe1cf0c 5239 goto out;
24bdd9f4 5240 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5241 if (!pinfoattr)
5242 goto nla_put_failure;
9360ffd1
DM		 5243 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5244 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5245 cur_params.dot11MeshRetryTimeout) ||
5246 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5247 cur_params.dot11MeshConfirmTimeout) ||
5248 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5249 cur_params.dot11MeshHoldingTimeout) ||
5250 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5251 cur_params.dot11MeshMaxPeerLinks) ||
5252 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5253 cur_params.dot11MeshMaxRetries) ||
5254 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5255 cur_params.dot11MeshTTL) ||
5256 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5257 cur_params.element_ttl) ||
5258 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5259 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5260 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5261 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5262 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5263 cur_params.dot11MeshHWMPmaxPREQretries) ||
5264 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5265 cur_params.path_refresh_time) ||
5266 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5267 cur_params.min_discovery_timeout) ||
5268 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5269 cur_params.dot11MeshHWMPactivePathTimeout) ||
5270 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5271 cur_params.dot11MeshHWMPpreqMinInterval) ||
5272 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5273 cur_params.dot11MeshHWMPperrMinInterval) ||
5274 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5275 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5276 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5277 cur_params.dot11MeshHWMPRootMode) ||
5278 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5279 cur_params.dot11MeshHWMPRannInterval) ||
5280 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5281 cur_params.dot11MeshGateAnnouncementProtocol) ||
5282 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5283 cur_params.dot11MeshForwarding) ||
5284 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5285 cur_params.rssi_threshold) ||
5286 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5287 cur_params.ht_opmode) ||
5288 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5289 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5290 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5291 cur_params.dot11MeshHWMProotInterval) ||
5292 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5293 cur_params.dot11MeshHWMPconfirmationInterval) ||
5294 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5295 cur_params.power_mode) ||
5296 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5297 cur_params.dot11MeshAwakeWindowDuration) ||
5298 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5299 cur_params.plink_timeout))
9360ffd1 5300 goto nla_put_failure;
93da9cc1 5301 nla_nest_end(msg, pinfoattr);
5302 genlmsg_end(msg, hdr);
4c476991 5303 return genlmsg_reply(msg, info);
93da9cc1 5304
3b85875a 5305 nla_put_failure:
93da9cc1 5306 genlmsg_cancel(msg, hdr);
efe1cf0c 5307 out:
d080e275 5308 nlmsg_free(msg);
4c476991 5309 return -ENOBUFS;
93da9cc1 5310}
5311
b54452b0 5312static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5313 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5314 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5315 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5316 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5317 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5318 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5319 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5320 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5321 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5322 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5323 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5324 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5325 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5326 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5327 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5328 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5329 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5330 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5331 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5332 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5333 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5334 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5335 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5336 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5337 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5338 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5339 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5340 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5341};
5342
c80d545d
JC		 5343static const struct nla_policy
5344 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5345 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5346 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5347 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5348 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5349 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5350 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5351 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5352 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5353 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5354};
5355
f151d9db
AB		 5356static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5357{
5358 u8 val = nla_get_u8(nla);
5359 if (val < min || val > max)
5360 return -EINVAL;
5361 *out = val;
5362 return 0;
5363}
5364
5365static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5366{
5367 u8 val = nla_get_u8(nla);
5368 if (val < min || val > max)
5369 return -EINVAL;
5370 *out = val;
5371 return 0;
5372}
5373
5374static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5375{
5376 u16 val = nla_get_u16(nla);
5377 if (val < min || val > max)
5378 return -EINVAL;
5379 *out = val;
5380 return 0;
5381}
5382
5383static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5384{
5385 u32 val = nla_get_u32(nla);
5386 if (val < min || val > max)
5387 return -EINVAL;
5388 *out = val;
5389 return 0;
5390}
5391
5392static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5393{
5394 s32 val = nla_get_s32(nla);
5395 if (val < min || val > max)
5396 return -EINVAL;
5397 *out = val;
5398 return 0;
5399}
5400
ff9a71af
JB		 5401static int nl80211_check_power_mode(const struct nlattr *nla,
5402 enum nl80211_mesh_power_mode min,
5403 enum nl80211_mesh_power_mode max,
5404 enum nl80211_mesh_power_mode *out)
5405{
5406 u32 val = nla_get_u32(nla);
5407 if (val < min || val > max)
5408 return -EINVAL;
5409 *out = val;
5410 return 0;
5411}
5412
24bdd9f4 5413static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5414 struct mesh_config *cfg,
5415 u32 *mask_out)
93da9cc1 5416{
93da9cc1 5417 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5418 u32 mask = 0;
9757235f 5419 u16 ht_opmode;
93da9cc1 5420
ea54fba2
MP		 5421#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5422do { \
5423 if (tb[attr]) { \
f151d9db 5424 if (fn(tb[attr], min, max, &cfg->param)) \
ea54fba2 5425 return -EINVAL; \
ea54fba2
MP		 5426 mask |= (1 << (attr - 1)); \
5427 } \
5428} while (0)
bd90fdcc 5429
24bdd9f4 5430 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5431 return -EINVAL;
5432 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5433 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5434 nl80211_meshconf_params_policy))
93da9cc1 5435 return -EINVAL;
5436
93da9cc1 5437 /* This makes sure that there aren't more than 32 mesh config
5438 * parameters (otherwise our bitfield scheme would not work.) */
5439 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5440
5441 /* Fill in the params struct */
ea54fba2 5442 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea 5443 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
f151d9db 5444 nl80211_check_u16);
ea54fba2 5445 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea 5446 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
f151d9db 5447 nl80211_check_u16);
ea54fba2 5448 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea 5449 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
f151d9db 5450 nl80211_check_u16);
ea54fba2 5451 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea 5452 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
f151d9db 5453 nl80211_check_u16);
ea54fba2 5454 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea 5455 mask, NL80211_MESHCONF_MAX_RETRIES,
f151d9db 5456 nl80211_check_u8);
ea54fba2 5457 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
f151d9db 5458 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
ea54fba2 5459 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea 5460 mask, NL80211_MESHCONF_ELEMENT_TTL,
f151d9db 5461 nl80211_check_u8);
ea54fba2 5462 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea 5463 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
f151d9db 5464 nl80211_check_bool);
ea54fba2
MP		 5465 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5466 1, 255, mask,
a4f606ea 5467 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
f151d9db 5468 nl80211_check_u32);
ea54fba2 5469 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea 5470 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
f151d9db 5471 nl80211_check_u8);
ea54fba2 5472 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea 5473 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
f151d9db 5474 nl80211_check_u32);
ea54fba2 5475 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea 5476 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
f151d9db 5477 nl80211_check_u16);
ea54fba2
MP		 5478 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5479 1, 65535, mask,
a4f606ea 5480 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
f151d9db 5481 nl80211_check_u32);
93da9cc1 5482 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5483 1, 65535, mask,
5484 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
f151d9db 5485 nl80211_check_u16);
dca7e943 5486 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5487 1, 65535, mask,
5488 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
f151d9db 5489 nl80211_check_u16);
93da9cc1 5490 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5491 dot11MeshHWMPnetDiameterTraversalTime,
5492 1, 65535, mask,
a4f606ea 5493 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
f151d9db 5494 nl80211_check_u16);
ea54fba2
MP		 5495 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5496 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
f151d9db 5497 nl80211_check_u8);
ea54fba2
MP		 5498 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5499 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
f151d9db 5500 nl80211_check_u16);
63c5723b 5501 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5502 dot11MeshGateAnnouncementProtocol, 0, 1,
5503 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
f151d9db 5504 nl80211_check_bool);
ea54fba2 5505 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea 5506 mask, NL80211_MESHCONF_FORWARDING,
f151d9db 5507 nl80211_check_bool);
83374fe9 5508 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5509 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
f151d9db 5510 nl80211_check_s32);
9757235f
MH		 5511 /*
5512 * Check HT operation mode based on
5513 * IEEE 802.11 2012 8.4.2.59 HT Operation element.
5514 */
5515 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
5516 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
5517
5518 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
5519 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
5520 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5521 return -EINVAL;
5522
5523 if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
5524 (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5525 return -EINVAL;
5526
5527 switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
5528 case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
5529 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
5530 if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
5531 return -EINVAL;
5532 break;
5533 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
5534 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
5535 if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5536 return -EINVAL;
5537 break;
5538 }
5539 cfg->ht_opmode = ht_opmode;
5540 }
ac1073a6 5541 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5542 1, 65535, mask,
ac1073a6 5543 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
f151d9db 5544 nl80211_check_u32);
ea54fba2 5545 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5546 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
f151d9db 5547 nl80211_check_u16);
728b19e5 5548 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5549 dot11MeshHWMPconfirmationInterval,
5550 1, 65535, mask,
728b19e5 5551 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
f151d9db 5552 nl80211_check_u16);
3b1c5a53
MP		 5553 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5554 NL80211_MESH_POWER_ACTIVE,
5555 NL80211_MESH_POWER_MAX,
5556 mask, NL80211_MESHCONF_POWER_MODE,
ff9a71af 5557 nl80211_check_power_mode);
3b1c5a53
MP		 5558 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5559 0, 65535, mask,
f151d9db 5560 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
31f909a2 5561 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538 5562 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
f151d9db 5563 nl80211_check_u32);
bd90fdcc
JB		 5564 if (mask_out)
5565 *mask_out = mask;
c80d545d 5566
bd90fdcc
JB		 5567 return 0;
5568
5569#undef FILL_IN_MESH_PARAM_IF_SET
5570}
5571
c80d545d
JC		 5572static int nl80211_parse_mesh_setup(struct genl_info *info,
5573 struct mesh_setup *setup)
5574{
bb2798d4 5575 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5576 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5577
5578 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5579 return -EINVAL;
5580 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5581 info->attrs[NL80211_ATTR_MESH_SETUP],
5582 nl80211_mesh_setup_params_policy))
5583 return -EINVAL;
5584
d299a1f2
JC		 5585 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5586 setup->sync_method =
5587 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5588 IEEE80211_SYNC_METHOD_VENDOR :
5589 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5590
c80d545d
JC		 5591 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5592 setup->path_sel_proto =
5593 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5594 IEEE80211_PATH_PROTOCOL_VENDOR :
5595 IEEE80211_PATH_PROTOCOL_HWMP;
5596
5597 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5598 setup->path_metric =
5599 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5600 IEEE80211_PATH_METRIC_VENDOR :
5601 IEEE80211_PATH_METRIC_AIRTIME;
5602
581a8b0f 5603 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5604 struct nlattr *ieattr =
581a8b0f 5605 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5606 if (!is_valid_ie_attr(ieattr))
5607 return -EINVAL;
581a8b0f
JC		 5608 setup->ie = nla_data(ieattr);
5609 setup->ie_len = nla_len(ieattr);
c80d545d 5610 }
bb2798d4
TP		 5611 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5612 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5613 return -EINVAL;
5614 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5615 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5616 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5617 if (setup->is_secure)
5618 setup->user_mpm = true;
c80d545d 5619
6e16d90b
CT		 5620 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5621 if (!setup->user_mpm)
5622 return -EINVAL;
5623 setup->auth_id =
5624 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5625 }
5626
c80d545d
JC		 5627 return 0;
5628}
5629
24bdd9f4 5630static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5631 struct genl_info *info)
bd90fdcc
JB		 5632{
5633 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5634 struct net_device *dev = info->user_ptr[1];
29cbe68c 5635 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5636 struct mesh_config cfg;
5637 u32 mask;
5638 int err;
5639
29cbe68c
JB		 5640 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5641 return -EOPNOTSUPP;
5642
24bdd9f4 5643 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5644 return -EOPNOTSUPP;
5645
24bdd9f4 5646 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5647 if (err)
5648 return err;
5649
29cbe68c
JB		 5650 wdev_lock(wdev);
5651 if (!wdev->mesh_id_len)
5652 err = -ENOLINK;
5653
5654 if (!err)
e35e4d28 5655 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5656
5657 wdev_unlock(wdev);
5658
5659 return err;
93da9cc1 5660}
5661
ad30ca2c
AN		 5662static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5663 struct sk_buff *msg)
f130347c 5664{
f130347c
LR		 5665 struct nlattr *nl_reg_rules;
5666 unsigned int i;
f130347c 5667
458f4f9e
JB		 5668 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5669 (regdom->dfs_region &&
5670 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5671 goto nla_put_failure;
458f4f9e 5672
f130347c
LR		 5673 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5674 if (!nl_reg_rules)
ad30ca2c 5675 goto nla_put_failure;
f130347c 5676
458f4f9e 5677 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5678 struct nlattr *nl_reg_rule;
5679 const struct ieee80211_reg_rule *reg_rule;
5680 const struct ieee80211_freq_range *freq_range;
5681 const struct ieee80211_power_rule *power_rule;
97524820 5682 unsigned int max_bandwidth_khz;
f130347c 5683
458f4f9e 5684 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5685 freq_range = &reg_rule->freq_range;
5686 power_rule = &reg_rule->power_rule;
5687
5688 nl_reg_rule = nla_nest_start(msg, i);
5689 if (!nl_reg_rule)
ad30ca2c 5690 goto nla_put_failure;
f130347c 5691
97524820
JD		 5692 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5693 if (!max_bandwidth_khz)
5694 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5695 reg_rule);
5696
9360ffd1
DM		 5697 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5698 reg_rule->flags) ||
5699 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5700 freq_range->start_freq_khz) ||
5701 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5702 freq_range->end_freq_khz) ||
5703 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5704 max_bandwidth_khz) ||
9360ffd1
DM		 5705 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5706 power_rule->max_antenna_gain) ||
5707 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5708 power_rule->max_eirp) ||
5709 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5710 reg_rule->dfs_cac_ms))
ad30ca2c 5711 goto nla_put_failure;
f130347c
LR		 5712
5713 nla_nest_end(msg, nl_reg_rule);
5714 }
5715
5716 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5717 return 0;
5718
5719nla_put_failure:
5720 return -EMSGSIZE;
5721}
5722
5723static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5724{
5725 const struct ieee80211_regdomain *regdom = NULL;
5726 struct cfg80211_registered_device *rdev;
5727 struct wiphy *wiphy = NULL;
5728 struct sk_buff *msg;
5729 void *hdr;
5730
5731 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5732 if (!msg)
5733 return -ENOBUFS;
5734
5735 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5736 NL80211_CMD_GET_REG);
5737 if (!hdr)
5738 goto put_failure;
5739
5740 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5741 bool self_managed;
5742
ad30ca2c
AN		 5743 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5744 if (IS_ERR(rdev)) {
5745 nlmsg_free(msg);
5746 return PTR_ERR(rdev);
5747 }
5748
5749 wiphy = &rdev->wiphy;
1bdd716c
AN		 5750 self_managed = wiphy->regulatory_flags &
5751 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5752 regdom = get_wiphy_regdom(wiphy);
5753
1bdd716c
AN		 5754 /* a self-managed-reg device must have a private regdom */
5755 if (WARN_ON(!regdom && self_managed)) {
5756 nlmsg_free(msg);
5757 return -EINVAL;
5758 }
5759
ad30ca2c
AN		 5760 if (regdom &&
5761 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5762 goto nla_put_failure;
5763 }
5764
5765 if (!wiphy && reg_last_request_cell_base() &&
5766 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5767 NL80211_USER_REG_HINT_CELL_BASE))
5768 goto nla_put_failure;
5769
5770 rcu_read_lock();
5771
5772 if (!regdom)
5773 regdom = rcu_dereference(cfg80211_regdomain);
5774
5775 if (nl80211_put_regdom(regdom, msg))
5776 goto nla_put_failure_rcu;
5777
5778 rcu_read_unlock();
f130347c
LR		 5779
5780 genlmsg_end(msg, hdr);
5fe231e8 5781 return genlmsg_reply(msg, info);
f130347c 5782
458f4f9e
JB		 5783nla_put_failure_rcu:
5784 rcu_read_unlock();
f130347c
LR		 5785nla_put_failure:
5786 genlmsg_cancel(msg, hdr);
efe1cf0c 5787put_failure:
d080e275 5788 nlmsg_free(msg);
5fe231e8 5789 return -EMSGSIZE;
f130347c
LR		 5790}
5791
ad30ca2c
AN		 5792static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5793 u32 seq, int flags, struct wiphy *wiphy,
5794 const struct ieee80211_regdomain *regdom)
5795{
5796 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5797 NL80211_CMD_GET_REG);
5798
5799 if (!hdr)
5800 return -1;
5801
5802 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5803
5804 if (nl80211_put_regdom(regdom, msg))
5805 goto nla_put_failure;
5806
5807 if (!wiphy && reg_last_request_cell_base() &&
5808 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5809 NL80211_USER_REG_HINT_CELL_BASE))
5810 goto nla_put_failure;
5811
5812 if (wiphy &&
5813 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5814 goto nla_put_failure;
5815
1bdd716c
AN		 5816 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5817 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5818 goto nla_put_failure;
5819
053c095a
JB		 5820 genlmsg_end(msg, hdr);
5821 return 0;
ad30ca2c
AN		 5822
5823nla_put_failure:
5824 genlmsg_cancel(msg, hdr);
5825 return -EMSGSIZE;
5826}
5827
5828static int nl80211_get_reg_dump(struct sk_buff *skb,
5829 struct netlink_callback *cb)
5830{
5831 const struct ieee80211_regdomain *regdom = NULL;
5832 struct cfg80211_registered_device *rdev;
5833 int err, reg_idx, start = cb->args[2];
5834
5835 rtnl_lock();
5836
5837 if (cfg80211_regdomain && start == 0) {
5838 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5839 NLM_F_MULTI, NULL,
5840 rtnl_dereference(cfg80211_regdomain));
5841 if (err < 0)
5842 goto out_err;
5843 }
5844
5845 /* the global regdom is idx 0 */
5846 reg_idx = 1;
5847 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5848 regdom = get_wiphy_regdom(&rdev->wiphy);
5849 if (!regdom)
5850 continue;
5851
5852 if (++reg_idx <= start)
5853 continue;
5854
5855 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5856 NLM_F_MULTI, &rdev->wiphy, regdom);
5857 if (err < 0) {
5858 reg_idx--;
5859 break;
5860 }
5861 }
5862
5863 cb->args[2] = reg_idx;
5864 err = skb->len;
5865out_err:
5866 rtnl_unlock();
5867 return err;
5868}
5869
b6863036
JB		 5870#ifdef CONFIG_CFG80211_CRDA_SUPPORT
5871static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
5872 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5873 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5874 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5875 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5876 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5877 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5878 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
5879};
5880
5881static int parse_reg_rule(struct nlattr *tb[],
5882 struct ieee80211_reg_rule *reg_rule)
5883{
5884 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
5885 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
5886
5887 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
5888 return -EINVAL;
5889 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
5890 return -EINVAL;
5891 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
5892 return -EINVAL;
5893 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
5894 return -EINVAL;
5895 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
5896 return -EINVAL;
5897
5898 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
5899
5900 freq_range->start_freq_khz =
5901 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
5902 freq_range->end_freq_khz =
5903 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
5904 freq_range->max_bandwidth_khz =
5905 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
5906
5907 power_rule->max_eirp =
5908 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
5909
5910 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
5911 power_rule->max_antenna_gain =
5912 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
5913
5914 if (tb[NL80211_ATTR_DFS_CAC_TIME])
5915 reg_rule->dfs_cac_ms =
5916 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
5917
5918 return 0;
5919}
5920
b2e1b302
LR		 5921static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5922{
5923 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5924 struct nlattr *nl_reg_rule;
ea372c54
JB		 5925 char *alpha2;
5926 int rem_reg_rules, r;
b2e1b302 5927 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5928 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5929 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5930
5931 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5932 return -EINVAL;
5933
5934 if (!info->attrs[NL80211_ATTR_REG_RULES])
5935 return -EINVAL;
5936
5937 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5938
8b60b078
LR		 5939 if (info->attrs[NL80211_ATTR_DFS_REGION])
5940 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5941
b2e1b302 5942 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5943 rem_reg_rules) {
b2e1b302
LR		 5944 num_rules++;
5945 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5946 return -EINVAL;
b2e1b302
LR		 5947 }
5948
e438768f
LR		 5949 if (!reg_is_valid_request(alpha2))
5950 return -EINVAL;
5951
b2e1b302 5952 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5953 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5954
5955 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5956 if (!rd)
5957 return -ENOMEM;
b2e1b302
LR		 5958
5959 rd->n_reg_rules = num_rules;
5960 rd->alpha2[0] = alpha2[0];
5961 rd->alpha2[1] = alpha2[1];
5962
8b60b078
LR		 5963 /*
5964 * Disable DFS master mode if the DFS region was
5965 * not supported or known on this kernel.
5966 */
5967 if (reg_supported_dfs_region(dfs_region))
5968 rd->dfs_region = dfs_region;
5969
b2e1b302 5970 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5971 rem_reg_rules) {
ae811e21
JB		 5972 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5973 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5974 reg_rule_policy);
5975 if (r)
5976 goto bad_reg;
b2e1b302
LR		 5977 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5978 if (r)
5979 goto bad_reg;
5980
5981 rule_idx++;
5982
d0e18f83
LR		 5983 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5984 r = -EINVAL;
b2e1b302 5985 goto bad_reg;
d0e18f83 5986 }
b2e1b302
LR		 5987 }
5988
06627990
JB		 5989 /* set_regdom takes ownership of rd */
5990 return set_regdom(rd, REGD_SOURCE_CRDA);
d2372b31 5991 bad_reg:
b2e1b302 5992 kfree(rd);
d0e18f83 5993 return r;
b2e1b302 5994}
b6863036 5995#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 5996
83f5e2cf
JB		 5997static int validate_scan_freqs(struct nlattr *freqs)
5998{
5999 struct nlattr *attr1, *attr2;
6000 int n_channels = 0, tmp1, tmp2;
6001
6002 nla_for_each_nested(attr1, freqs, tmp1) {
6003 n_channels++;
6004 /*
6005 * Some hardware has a limited channel list for
6006 * scanning, and it is pretty much nonsensical
6007 * to scan for a channel twice, so disallow that
6008 * and don't require drivers to check that the
6009 * channel list they get isn't longer than what
6010 * they can scan, as long as they can scan all
6011 * the channels they registered at once.
6012 */
6013 nla_for_each_nested(attr2, freqs, tmp2)
6014 if (attr1 != attr2 &&
6015 nla_get_u32(attr1) == nla_get_u32(attr2))
6016 return 0;
6017 }
6018
6019 return n_channels;
6020}
6021
57fbcce3 6022static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
38de03d2 6023{
57fbcce3 6024 return b < NUM_NL80211_BANDS && wiphy->bands[b];
38de03d2
AS		 6025}
6026
6027static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6028 struct cfg80211_bss_selection *bss_select)
6029{
6030 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6031 struct nlattr *nest;
6032 int err;
6033 bool found = false;
6034 int i;
6035
6036 /* only process one nested attribute */
6037 nest = nla_data(nla);
6038 if (!nla_ok(nest, nla_len(nest)))
6039 return -EINVAL;
6040
6041 err = nla_parse(attr, NL80211_BSS_SELECT_ATTR_MAX, nla_data(nest),
6042 nla_len(nest), nl80211_bss_select_policy);
6043 if (err)
6044 return err;
6045
6046 /* only one attribute may be given */
6047 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6048 if (attr[i]) {
6049 if (found)
6050 return -EINVAL;
6051 found = true;
6052 }
6053 }
6054
6055 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6056
6057 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6058 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6059
6060 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6061 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6062 bss_select->param.band_pref =
6063 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6064 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6065 return -EINVAL;
6066 }
6067
6068 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6069 struct nl80211_bss_select_rssi_adjust *adj_param;
6070
6071 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6072 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6073 bss_select->param.adjust.band = adj_param->band;
6074 bss_select->param.adjust.delta = adj_param->delta;
6075 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6076 return -EINVAL;
6077 }
6078
6079 /* user-space did not provide behaviour attribute */
6080 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6081 return -EINVAL;
6082
6083 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6084 return -EINVAL;
6085
6086 return 0;
6087}
6088
ad2b26ab
JB		 6089static int nl80211_parse_random_mac(struct nlattr **attrs,
6090 u8 *mac_addr, u8 *mac_addr_mask)
6091{
6092 int i;
6093
6094 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 6095 eth_zero_addr(mac_addr);
6096 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 6097 mac_addr[0] = 0x2;
6098 mac_addr_mask[0] = 0x3;
6099
6100 return 0;
6101 }
6102
6103 /* need both or none */
6104 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6105 return -EINVAL;
6106
6107 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6108 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6109
6110 /* don't allow or configure an mcast address */
6111 if (!is_multicast_ether_addr(mac_addr_mask) ||
6112 is_multicast_ether_addr(mac_addr))
6113 return -EINVAL;
6114
6115 /*
6116 * allow users to pass a MAC address that has bits set outside
6117 * of the mask, but don't bother drivers with having to deal
6118 * with such bits
6119 */
6120 for (i = 0; i < ETH_ALEN; i++)
6121 mac_addr[i] &= mac_addr_mask[i];
6122
6123 return 0;
6124}
6125
2a519311
JB		 6126static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6127{
4c476991 6128 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 6129 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 6130 struct cfg80211_scan_request *request;
2a519311
JB		 6131 struct nlattr *attr;
6132 struct wiphy *wiphy;
83f5e2cf 6133 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 6134 size_t ie_len;
2a519311 6135
f4a11bb0
JB		 6136 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6137 return -EINVAL;
6138
79c97e97 6139 wiphy = &rdev->wiphy;
2a519311 6140
4c476991
JB		 6141 if (!rdev->ops->scan)
6142 return -EOPNOTSUPP;
2a519311 6143
f9d15d16 6144 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 6145 err = -EBUSY;
6146 goto unlock;
6147 }
2a519311
JB		 6148
6149 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 6150 n_channels = validate_scan_freqs(
6151 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 6152 if (!n_channels) {
6153 err = -EINVAL;
6154 goto unlock;
6155 }
2a519311 6156 } else {
bdfbec2d 6157 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 6158 }
6159
6160 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6161 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6162 n_ssids++;
6163
f9f47529
JB		 6164 if (n_ssids > wiphy->max_scan_ssids) {
6165 err = -EINVAL;
6166 goto unlock;
6167 }
2a519311 6168
70692ad2
JM		 6169 if (info->attrs[NL80211_ATTR_IE])
6170 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6171 else
6172 ie_len = 0;
6173
f9f47529
JB		 6174 if (ie_len > wiphy->max_scan_ie_len) {
6175 err = -EINVAL;
6176 goto unlock;
6177 }
18a83659 6178
2a519311 6179 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 6180 + sizeof(*request->ssids) * n_ssids
6181 + sizeof(*request->channels) * n_channels
70692ad2 6182 + ie_len, GFP_KERNEL);
f9f47529
JB		 6183 if (!request) {
6184 err = -ENOMEM;
6185 goto unlock;
6186 }
2a519311 6187
2a519311 6188 if (n_ssids)
5ba63533 6189 request->ssids = (void *)&request->channels[n_channels];
2a519311 6190 request->n_ssids = n_ssids;
70692ad2 6191 if (ie_len) {
13874e4b 6192 if (n_ssids)
70692ad2
JM		 6193 request->ie = (void *)(request->ssids + n_ssids);
6194 else
6195 request->ie = (void *)(request->channels + n_channels);
6196 }
2a519311 6197
584991dc 6198 i = 0;
2a519311
JB		 6199 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6200 /* user specified, bail out if channel not found */
2a519311 6201 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6202 struct ieee80211_channel *chan;
6203
6204 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6205
6206 if (!chan) {
2a519311
JB		 6207 err = -EINVAL;
6208 goto out_free;
6209 }
584991dc
JB		 6210
6211 /* ignore disabled channels */
6212 if (chan->flags & IEEE80211_CHAN_DISABLED)
6213 continue;
6214
6215 request->channels[i] = chan;
2a519311
JB		 6216 i++;
6217 }
6218 } else {
57fbcce3 6219 enum nl80211_band band;
34850ab2 6220
2a519311 6221 /* all channels */
57fbcce3 6222 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2a519311 6223 int j;
7a087e74 6224
2a519311
JB		 6225 if (!wiphy->bands[band])
6226 continue;
6227 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6228 struct ieee80211_channel *chan;
6229
6230 chan = &wiphy->bands[band]->channels[j];
6231
6232 if (chan->flags & IEEE80211_CHAN_DISABLED)
6233 continue;
6234
6235 request->channels[i] = chan;
2a519311
JB		 6236 i++;
6237 }
6238 }
6239 }
6240
584991dc
JB		 6241 if (!i) {
6242 err = -EINVAL;
6243 goto out_free;
6244 }
6245
6246 request->n_channels = i;
6247
2a519311 6248 i = 0;
13874e4b 6249 if (n_ssids) {
2a519311 6250 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6251 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6252 err = -EINVAL;
6253 goto out_free;
6254 }
57a27e1d 6255 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6256 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6257 i++;
6258 }
6259 }
6260
70692ad2
JM		 6261 if (info->attrs[NL80211_ATTR_IE]) {
6262 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6263 memcpy((void *)request->ie,
6264 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6265 request->ie_len);
6266 }
6267
57fbcce3 6268 for (i = 0; i < NUM_NL80211_BANDS; i++)
a401d2bb
JB		 6269 if (wiphy->bands[i])
6270 request->rates[i] =
6271 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6272
6273 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6274 nla_for_each_nested(attr,
6275 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6276 tmp) {
57fbcce3 6277 enum nl80211_band band = nla_type(attr);
34850ab2 6278
57fbcce3 6279 if (band < 0 || band >= NUM_NL80211_BANDS) {
34850ab2
JB		 6280 err = -EINVAL;
6281 goto out_free;
6282 }
1b09cd82
FF		 6283
6284 if (!wiphy->bands[band])
6285 continue;
6286
34850ab2
JB		 6287 err = ieee80211_get_ratemask(wiphy->bands[band],
6288 nla_data(attr),
6289 nla_len(attr),
6290 &request->rates[band]);
6291 if (err)
6292 goto out_free;
6293 }
6294 }
6295
1d76250b
AS		 6296 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6297 if (!wiphy_ext_feature_isset(wiphy,
6298 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6299 err = -EOPNOTSUPP;
6300 goto out_free;
6301 }
6302
6303 request->duration =
6304 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6305 request->duration_mandatory =
6306 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6307 }
6308
46856bbf 6309 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 6310 request->flags = nla_get_u32(
6311 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6312 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6313 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6314 err = -EOPNOTSUPP;
6315 goto out_free;
6316 }
ad2b26ab
JB		 6317
6318 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6319 if (!(wiphy->features &
6320 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6321 err = -EOPNOTSUPP;
6322 goto out_free;
6323 }
6324
6325 if (wdev->current_bss) {
6326 err = -EOPNOTSUPP;
6327 goto out_free;
6328 }
6329
6330 err = nl80211_parse_random_mac(info->attrs,
6331 request->mac_addr,
6332 request->mac_addr_mask);
6333 if (err)
6334 goto out_free;
6335 }
46856bbf 6336 }
ed473771 6337
e9f935e3
RM		 6338 request->no_cck =
6339 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6340
818965d3
JM		 6341 if (info->attrs[NL80211_ATTR_MAC])
6342 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6343 ETH_ALEN);
6344 else
6345 eth_broadcast_addr(request->bssid);
6346
fd014284 6347 request->wdev = wdev;
79c97e97 6348 request->wiphy = &rdev->wiphy;
15d6030b 6349 request->scan_start = jiffies;
2a519311 6350
79c97e97 6351 rdev->scan_req = request;
e35e4d28 6352 err = rdev_scan(rdev, request);
2a519311 6353
463d0183 6354 if (!err) {
fd014284
JB		 6355 nl80211_send_scan_start(rdev, wdev);
6356 if (wdev->netdev)
6357 dev_hold(wdev->netdev);
4c476991 6358 } else {
2a519311 6359 out_free:
79c97e97 6360 rdev->scan_req = NULL;
2a519311
JB		 6361 kfree(request);
6362 }
3b85875a 6363
f9f47529 6364 unlock:
2a519311
JB		 6365 return err;
6366}
6367
91d3ab46
VK		 6368static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6369{
6370 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6371 struct wireless_dev *wdev = info->user_ptr[1];
6372
6373 if (!rdev->ops->abort_scan)
6374 return -EOPNOTSUPP;
6375
6376 if (rdev->scan_msg)
6377 return 0;
6378
6379 if (!rdev->scan_req)
6380 return -ENOENT;
6381
6382 rdev_abort_scan(rdev, wdev);
6383 return 0;
6384}
6385
3b06d277
AS		 6386static int
6387nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6388 struct cfg80211_sched_scan_request *request,
6389 struct nlattr **attrs)
6390{
6391 int tmp, err, i = 0;
6392 struct nlattr *attr;
6393
6394 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6395 u32 interval;
6396
6397 /*
6398 * If scan plans are not specified,
6399 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6400 * case one scan plan will be set with the specified scan
6401 * interval and infinite number of iterations.
6402 */
6403 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6404 return -EINVAL;
6405
6406 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6407 if (!interval)
6408 return -EINVAL;
6409
6410 request->scan_plans[0].interval =
6411 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6412 if (!request->scan_plans[0].interval)
6413 return -EINVAL;
6414
6415 if (request->scan_plans[0].interval >
6416 wiphy->max_sched_scan_plan_interval)
6417 request->scan_plans[0].interval =
6418 wiphy->max_sched_scan_plan_interval;
6419
6420 return 0;
6421 }
6422
6423 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6424 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6425
6426 if (WARN_ON(i >= n_plans))
6427 return -EINVAL;
6428
6429 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6430 nla_data(attr), nla_len(attr),
6431 nl80211_plan_policy);
6432 if (err)
6433 return err;
6434
6435 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6436 return -EINVAL;
6437
6438 request->scan_plans[i].interval =
6439 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6440 if (!request->scan_plans[i].interval ||
6441 request->scan_plans[i].interval >
6442 wiphy->max_sched_scan_plan_interval)
6443 return -EINVAL;
6444
6445 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6446 request->scan_plans[i].iterations =
6447 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6448 if (!request->scan_plans[i].iterations ||
6449 (request->scan_plans[i].iterations >
6450 wiphy->max_sched_scan_plan_iterations))
6451 return -EINVAL;
6452 } else if (i < n_plans - 1) {
6453 /*
6454 * All scan plans but the last one must specify
6455 * a finite number of iterations
6456 */
6457 return -EINVAL;
6458 }
6459
6460 i++;
6461 }
6462
6463 /*
6464 * The last scan plan must not specify the number of
6465 * iterations, it is supposed to run infinitely
6466 */
6467 if (request->scan_plans[n_plans - 1].iterations)
6468 return -EINVAL;
6469
6470 return 0;
6471}
6472
256da02d 6473static struct cfg80211_sched_scan_request *
ad2b26ab 6474nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 6475 struct nlattr **attrs)
807f8a8c
LC		 6476{
6477 struct cfg80211_sched_scan_request *request;
807f8a8c 6478 struct nlattr *attr;
3b06d277 6479 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
57fbcce3 6480 enum nl80211_band band;
807f8a8c 6481 size_t ie_len;
a1f1c21c 6482 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6483 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6484
256da02d
LC		 6485 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6486 return ERR_PTR(-EINVAL);
807f8a8c 6487
256da02d 6488 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6489 n_channels = validate_scan_freqs(
256da02d 6490 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6491 if (!n_channels)
256da02d 6492 return ERR_PTR(-EINVAL);
807f8a8c 6493 } else {
bdfbec2d 6494 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6495 }
6496
256da02d
LC		 6497 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6498 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6499 tmp)
6500 n_ssids++;
6501
93b6aa69 6502 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6503 return ERR_PTR(-EINVAL);
807f8a8c 6504
ea73cbce
JB		 6505 /*
6506 * First, count the number of 'real' matchsets. Due to an issue with
6507 * the old implementation, matchsets containing only the RSSI attribute
6508 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6509 * RSSI for all matchsets, rather than their own matchset for reporting
6510 * all APs with a strong RSSI. This is needed to be compatible with
6511 * older userspace that treated a matchset with only the RSSI as the
6512 * global RSSI for all other matchsets - if there are other matchsets.
6513 */
256da02d 6514 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6515 nla_for_each_nested(attr,
256da02d 6516 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6517 tmp) {
6518 struct nlattr *rssi;
6519
6520 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6521 nla_data(attr), nla_len(attr),
6522 nl80211_match_policy);
6523 if (err)
256da02d 6524 return ERR_PTR(err);
ea73cbce
JB		 6525 /* add other standalone attributes here */
6526 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6527 n_match_sets++;
6528 continue;
6529 }
6530 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6531 if (rssi)
6532 default_match_rssi = nla_get_s32(rssi);
6533 }
6534 }
6535
6536 /* However, if there's no other matchset, add the RSSI one */
6537 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6538 n_match_sets = 1;
a1f1c21c
LC		 6539
6540 if (n_match_sets > wiphy->max_match_sets)
256da02d 6541 return ERR_PTR(-EINVAL);
a1f1c21c 6542
256da02d
LC		 6543 if (attrs[NL80211_ATTR_IE])
6544 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6545 else
6546 ie_len = 0;
6547
5a865bad 6548 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6549 return ERR_PTR(-EINVAL);
c10841ca 6550
3b06d277
AS		 6551 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6552 /*
6553 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6554 * each scan plan already specifies its own interval
6555 */
6556 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6557 return ERR_PTR(-EINVAL);
6558
6559 nla_for_each_nested(attr,
6560 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6561 n_plans++;
6562 } else {
6563 /*
6564 * The scan interval attribute is kept for backward
6565 * compatibility. If no scan plans are specified and sched scan
6566 * interval is specified, one scan plan will be set with this
6567 * scan interval and infinite number of iterations.
6568 */
6569 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6570 return ERR_PTR(-EINVAL);
6571
6572 n_plans = 1;
6573 }
6574
6575 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6576 return ERR_PTR(-EINVAL);
6577
807f8a8c 6578 request = kzalloc(sizeof(*request)
a2cd43c5 6579 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6580 + sizeof(*request->match_sets) * n_match_sets
3b06d277 6581 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 6582 + sizeof(*request->channels) * n_channels
807f8a8c 6583 + ie_len, GFP_KERNEL);
256da02d
LC		 6584 if (!request)
6585 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6586
6587 if (n_ssids)
6588 request->ssids = (void *)&request->channels[n_channels];
6589 request->n_ssids = n_ssids;
6590 if (ie_len) {
13874e4b 6591 if (n_ssids)
807f8a8c
LC		 6592 request->ie = (void *)(request->ssids + n_ssids);
6593 else
6594 request->ie = (void *)(request->channels + n_channels);
6595 }
6596
a1f1c21c
LC		 6597 if (n_match_sets) {
6598 if (request->ie)
6599 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6600 else if (n_ssids)
a1f1c21c
LC		 6601 request->match_sets =
6602 (void *)(request->ssids + n_ssids);
6603 else
6604 request->match_sets =
6605 (void *)(request->channels + n_channels);
6606 }
6607 request->n_match_sets = n_match_sets;
6608
3b06d277
AS		 6609 if (n_match_sets)
6610 request->scan_plans = (void *)(request->match_sets +
6611 n_match_sets);
6612 else if (request->ie)
6613 request->scan_plans = (void *)(request->ie + ie_len);
6614 else if (n_ssids)
6615 request->scan_plans = (void *)(request->ssids + n_ssids);
6616 else
6617 request->scan_plans = (void *)(request->channels + n_channels);
6618
6619 request->n_scan_plans = n_plans;
6620
807f8a8c 6621 i = 0;
256da02d 6622 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6623 /* user specified, bail out if channel not found */
6624 nla_for_each_nested(attr,
256da02d 6625 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6626 tmp) {
6627 struct ieee80211_channel *chan;
6628
6629 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6630
6631 if (!chan) {
6632 err = -EINVAL;
6633 goto out_free;
6634 }
6635
6636 /* ignore disabled channels */
6637 if (chan->flags & IEEE80211_CHAN_DISABLED)
6638 continue;
6639
6640 request->channels[i] = chan;
6641 i++;
6642 }
6643 } else {
6644 /* all channels */
57fbcce3 6645 for (band = 0; band < NUM_NL80211_BANDS; band++) {
807f8a8c 6646 int j;
7a087e74 6647
807f8a8c
LC		 6648 if (!wiphy->bands[band])
6649 continue;
6650 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6651 struct ieee80211_channel *chan;
6652
6653 chan = &wiphy->bands[band]->channels[j];
6654
6655 if (chan->flags & IEEE80211_CHAN_DISABLED)
6656 continue;
6657
6658 request->channels[i] = chan;
6659 i++;
6660 }
6661 }
6662 }
6663
6664 if (!i) {
6665 err = -EINVAL;
6666 goto out_free;
6667 }
6668
6669 request->n_channels = i;
6670
6671 i = 0;
13874e4b 6672 if (n_ssids) {
256da02d 6673 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6674 tmp) {
57a27e1d 6675 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6676 err = -EINVAL;
6677 goto out_free;
6678 }
57a27e1d 6679 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6680 memcpy(request->ssids[i].ssid, nla_data(attr),
6681 nla_len(attr));
807f8a8c
LC		 6682 i++;
6683 }
6684 }
6685
a1f1c21c 6686 i = 0;
256da02d 6687 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6688 nla_for_each_nested(attr,
256da02d 6689 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6690 tmp) {
88e920b4 6691 struct nlattr *ssid, *rssi;
a1f1c21c 6692
ae811e21
JB		 6693 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6694 nla_data(attr), nla_len(attr),
6695 nl80211_match_policy);
6696 if (err)
6697 goto out_free;
4a4ab0d7 6698 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6699 if (ssid) {
ea73cbce
JB		 6700 if (WARN_ON(i >= n_match_sets)) {
6701 /* this indicates a programming error,
6702 * the loop above should have verified
6703 * things properly
6704 */
6705 err = -EINVAL;
6706 goto out_free;
6707 }
6708
a1f1c21c
LC		 6709 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6710 err = -EINVAL;
6711 goto out_free;
6712 }
6713 memcpy(request->match_sets[i].ssid.ssid,
6714 nla_data(ssid), nla_len(ssid));
6715 request->match_sets[i].ssid.ssid_len =
6716 nla_len(ssid);
56ab364f 6717 /* special attribute - old implementation w/a */
ea73cbce
JB		 6718 request->match_sets[i].rssi_thold =
6719 default_match_rssi;
6720 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6721 if (rssi)
6722 request->match_sets[i].rssi_thold =
6723 nla_get_s32(rssi);
a1f1c21c
LC		 6724 }
6725 i++;
6726 }
ea73cbce
JB		 6727
6728 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6729 if (i == 0 && n_match_sets)
ea73cbce
JB		 6730 request->match_sets[0].rssi_thold = default_match_rssi;
6731
6732 request->min_rssi_thold = INT_MAX;
6733 for (i = 0; i < n_match_sets; i++)
6734 request->min_rssi_thold =
6735 min(request->match_sets[i].rssi_thold,
6736 request->min_rssi_thold);
6737 } else {
6738 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6739 }
6740
9900e484
JB		 6741 if (ie_len) {
6742 request->ie_len = ie_len;
807f8a8c 6743 memcpy((void *)request->ie,
256da02d 6744 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6745 request->ie_len);
6746 }
6747
256da02d 6748 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6749 request->flags = nla_get_u32(
256da02d 6750 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6751 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6752 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6753 err = -EOPNOTSUPP;
6754 goto out_free;
6755 }
ad2b26ab
JB		 6756
6757 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6758 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6759
6760 if (!wdev) /* must be net-detect */
6761 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6762
6763 if (!(wiphy->features & flg)) {
6764 err = -EOPNOTSUPP;
6765 goto out_free;
6766 }
6767
6768 if (wdev && wdev->current_bss) {
6769 err = -EOPNOTSUPP;
6770 goto out_free;
6771 }
6772
6773 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6774 request->mac_addr_mask);
6775 if (err)
6776 goto out_free;
6777 }
46856bbf 6778 }
ed473771 6779
9c748934
LC		 6780 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6781 request->delay =
6782 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6783
3b06d277
AS		 6784 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6785 if (err)
6786 goto out_free;
6787
15d6030b 6788 request->scan_start = jiffies;
807f8a8c 6789
256da02d 6790 return request;
807f8a8c
LC		 6791
6792out_free:
6793 kfree(request);
256da02d
LC		 6794 return ERR_PTR(err);
6795}
6796
6797static int nl80211_start_sched_scan(struct sk_buff *skb,
6798 struct genl_info *info)
6799{
6800 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6801 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6802 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6803 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6804 int err;
6805
6806 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6807 !rdev->ops->sched_scan_start)
6808 return -EOPNOTSUPP;
6809
6810 if (rdev->sched_scan_req)
6811 return -EINPROGRESS;
6812
31a60ed1
JR		 6813 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6814 info->attrs);
6815
6816 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6817 if (err)
6818 goto out_err;
6819
31a60ed1 6820 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6821 if (err)
6822 goto out_free;
6823
31a60ed1
JR		 6824 sched_scan_req->dev = dev;
6825 sched_scan_req->wiphy = &rdev->wiphy;
6826
93a1e86c
JR		 6827 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6828 sched_scan_req->owner_nlportid = info->snd_portid;
6829
31a60ed1 6830 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6831
6832 nl80211_send_sched_scan(rdev, dev,
6833 NL80211_CMD_START_SCHED_SCAN);
6834 return 0;
6835
6836out_free:
31a60ed1 6837 kfree(sched_scan_req);
256da02d 6838out_err:
807f8a8c
LC		 6839 return err;
6840}
6841
6842static int nl80211_stop_sched_scan(struct sk_buff *skb,
6843 struct genl_info *info)
6844{
6845 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6846
6847 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6848 !rdev->ops->sched_scan_stop)
6849 return -EOPNOTSUPP;
6850
5fe231e8 6851 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6852}
6853
04f39047
SW		 6854static int nl80211_start_radar_detection(struct sk_buff *skb,
6855 struct genl_info *info)
6856{
6857 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6858 struct net_device *dev = info->user_ptr[1];
6859 struct wireless_dev *wdev = dev->ieee80211_ptr;
6860 struct cfg80211_chan_def chandef;
55f7435c 6861 enum nl80211_dfs_regions dfs_region;
31559f35 6862 unsigned int cac_time_ms;
04f39047
SW		 6863 int err;
6864
55f7435c
LR		 6865 dfs_region = reg_get_dfs_region(wdev->wiphy);
6866 if (dfs_region == NL80211_DFS_UNSET)
6867 return -EINVAL;
6868
04f39047
SW		 6869 err = nl80211_parse_chandef(rdev, info, &chandef);
6870 if (err)
6871 return err;
6872
ff311bc1
SW		 6873 if (netif_carrier_ok(dev))
6874 return -EBUSY;
6875
04f39047
SW		 6876 if (wdev->cac_started)
6877 return -EBUSY;
6878
2beb6dab 6879 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6880 wdev->iftype);
04f39047
SW		 6881 if (err < 0)
6882 return err;
6883
6884 if (err == 0)
6885 return -EINVAL;
6886
fe7c3a1f 6887 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6888 return -EINVAL;
6889
6890 if (!rdev->ops->start_radar_detection)
6891 return -EOPNOTSUPP;
6892
31559f35
JD		 6893 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6894 if (WARN_ON(!cac_time_ms))
6895 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6896
a1056b1b 6897 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 6898 if (!err) {
9e0e2961 6899 wdev->chandef = chandef;
04f39047
SW		 6900 wdev->cac_started = true;
6901 wdev->cac_start_time = jiffies;
31559f35 6902 wdev->cac_time_ms = cac_time_ms;
04f39047 6903 }
04f39047
SW		 6904 return err;
6905}
6906
16ef1fe2
SW		 6907static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6908{
6909 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6910 struct net_device *dev = info->user_ptr[1];
6911 struct wireless_dev *wdev = dev->ieee80211_ptr;
6912 struct cfg80211_csa_settings params;
6913 /* csa_attrs is defined static to avoid waste of stack size - this
6914 * function is called under RTNL lock, so this should not be a problem.
6915 */
6916 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6917 int err;
ee4bc9e7 6918 bool need_new_beacon = false;
9a774c78 6919 int len, i;
252e07ca 6920 u32 cs_count;
16ef1fe2
SW		 6921
6922 if (!rdev->ops->channel_switch ||
6923 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6924 return -EOPNOTSUPP;
6925
ee4bc9e7
SW		 6926 switch (dev->ieee80211_ptr->iftype) {
6927 case NL80211_IFTYPE_AP:
6928 case NL80211_IFTYPE_P2P_GO:
6929 need_new_beacon = true;
6930
6931 /* useless if AP is not running */
6932 if (!wdev->beacon_interval)
1ff79dfa 6933 return -ENOTCONN;
ee4bc9e7
SW		 6934 break;
6935 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6936 if (!wdev->ssid_len)
6937 return -ENOTCONN;
6938 break;
c6da674a 6939 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6940 if (!wdev->mesh_id_len)
6941 return -ENOTCONN;
ee4bc9e7
SW		 6942 break;
6943 default:
16ef1fe2 6944 return -EOPNOTSUPP;
ee4bc9e7 6945 }
16ef1fe2
SW		 6946
6947 memset(&params, 0, sizeof(params));
6948
6949 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6950 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6951 return -EINVAL;
6952
6953 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6954 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6955 return -EINVAL;
6956
252e07ca
LC		 6957 /* Even though the attribute is u32, the specification says
6958 * u8, so let's make sure we don't overflow.
6959 */
6960 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6961 if (cs_count > 255)
6962 return -EINVAL;
6963
6964 params.count = cs_count;
16ef1fe2 6965
ee4bc9e7
SW		 6966 if (!need_new_beacon)
6967 goto skip_beacons;
6968
16ef1fe2
SW		 6969 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6970 if (err)
6971 return err;
6972
6973 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6974 info->attrs[NL80211_ATTR_CSA_IES],
6975 nl80211_policy);
6976 if (err)
6977 return err;
6978
6979 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6980 if (err)
6981 return err;
6982
6983 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6984 return -EINVAL;
6985
9a774c78
AO		 6986 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6987 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6988 return -EINVAL;
6989
9a774c78
AO		 6990 params.n_counter_offsets_beacon = len / sizeof(u16);
6991 if (rdev->wiphy.max_num_csa_counters &&
6992 (params.n_counter_offsets_beacon >
6993 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6994 return -EINVAL;
6995
9a774c78
AO		 6996 params.counter_offsets_beacon =
6997 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6998
6999 /* sanity checks - counters should fit and be the same */
7000 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7001 u16 offset = params.counter_offsets_beacon[i];
7002
7003 if (offset >= params.beacon_csa.tail_len)
7004 return -EINVAL;
7005
7006 if (params.beacon_csa.tail[offset] != params.count)
7007 return -EINVAL;
7008 }
7009
16ef1fe2 7010 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 7011 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7012 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7013 return -EINVAL;
7014
9a774c78
AO		 7015 params.n_counter_offsets_presp = len / sizeof(u16);
7016 if (rdev->wiphy.max_num_csa_counters &&
7017 (params.n_counter_offsets_beacon >
7018 rdev->wiphy.max_num_csa_counters))
16ef1fe2 7019 return -EINVAL;
9a774c78
AO		 7020
7021 params.counter_offsets_presp =
7022 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7023
7024 /* sanity checks - counters should fit and be the same */
7025 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7026 u16 offset = params.counter_offsets_presp[i];
7027
7028 if (offset >= params.beacon_csa.probe_resp_len)
7029 return -EINVAL;
7030
7031 if (params.beacon_csa.probe_resp[offset] !=
7032 params.count)
7033 return -EINVAL;
7034 }
16ef1fe2
SW		 7035 }
7036
ee4bc9e7 7037skip_beacons:
16ef1fe2
SW		 7038 err = nl80211_parse_chandef(rdev, info, &params.chandef);
7039 if (err)
7040 return err;
7041
923b352f
AN		 7042 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
7043 wdev->iftype))
16ef1fe2
SW		 7044 return -EINVAL;
7045
2beb6dab
LC		 7046 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7047 &params.chandef,
7048 wdev->iftype);
7049 if (err < 0)
7050 return err;
7051
dcc6c2f5 7052 if (err > 0)
2beb6dab 7053 params.radar_required = true;
16ef1fe2 7054
16ef1fe2
SW		 7055 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7056 params.block_tx = true;
7057
c56589ed
SW		 7058 wdev_lock(wdev);
7059 err = rdev_channel_switch(rdev, dev, &params);
7060 wdev_unlock(wdev);
7061
7062 return err;
16ef1fe2
SW		 7063}
7064
9720bb3a
JB		 7065static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7066 u32 seq, int flags,
2a519311 7067 struct cfg80211_registered_device *rdev,
48ab905d
JB		 7068 struct wireless_dev *wdev,
7069 struct cfg80211_internal_bss *intbss)
2a519311 7070{
48ab905d 7071 struct cfg80211_bss *res = &intbss->pub;
9caf0364 7072 const struct cfg80211_bss_ies *ies;
2a519311
JB		 7073 void *hdr;
7074 struct nlattr *bss;
48ab905d
JB		 7075
7076 ASSERT_WDEV_LOCK(wdev);
2a519311 7077
15e47304 7078 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 7079 NL80211_CMD_NEW_SCAN_RESULTS);
7080 if (!hdr)
7081 return -1;
7082
9720bb3a
JB		 7083 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7084
97990a06
JB		 7085 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7086 goto nla_put_failure;
7087 if (wdev->netdev &&
9360ffd1
DM		 7088 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7089 goto nla_put_failure;
2dad624e
ND		 7090 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7091 NL80211_ATTR_PAD))
97990a06 7092 goto nla_put_failure;
2a519311
JB		 7093
7094 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7095 if (!bss)
7096 goto nla_put_failure;
9360ffd1 7097 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 7098 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 7099 goto nla_put_failure;
9caf0364
JB		 7100
7101 rcu_read_lock();
0e227084
JB		 7102 /* indicate whether we have probe response data or not */
7103 if (rcu_access_pointer(res->proberesp_ies) &&
7104 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7105 goto fail_unlock_rcu;
7106
7107 /* this pointer prefers to be pointed to probe response data
7108 * but is always valid
7109 */
9caf0364 7110 ies = rcu_dereference(res->ies);
8cef2c9d 7111 if (ies) {
2dad624e
ND		 7112 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7113 NL80211_BSS_PAD))
8cef2c9d 7114 goto fail_unlock_rcu;
8cef2c9d
JB		 7115 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7116 ies->len, ies->data))
7117 goto fail_unlock_rcu;
9caf0364 7118 }
0e227084
JB		 7119
7120 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 7121 ies = rcu_dereference(res->beacon_ies);
0e227084 7122 if (ies && ies->from_beacon) {
2dad624e
ND		 7123 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7124 NL80211_BSS_PAD))
8cef2c9d
JB		 7125 goto fail_unlock_rcu;
7126 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7127 ies->len, ies->data))
7128 goto fail_unlock_rcu;
9caf0364
JB		 7129 }
7130 rcu_read_unlock();
7131
9360ffd1
DM		 7132 if (res->beacon_interval &&
7133 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7134 goto nla_put_failure;
7135 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7136 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 7137 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 7138 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7139 jiffies_to_msecs(jiffies - intbss->ts)))
7140 goto nla_put_failure;
2a519311 7141
1d76250b
AS		 7142 if (intbss->parent_tsf &&
7143 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7144 intbss->parent_tsf, NL80211_BSS_PAD) ||
7145 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7146 intbss->parent_bssid)))
7147 goto nla_put_failure;
7148
6e19bc4b 7149 if (intbss->ts_boottime &&
2dad624e
ND		 7150 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7151 intbss->ts_boottime, NL80211_BSS_PAD))
6e19bc4b
DS		 7152 goto nla_put_failure;
7153
77965c97 7154 switch (rdev->wiphy.signal_type) {
2a519311 7155 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 7156 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7157 goto nla_put_failure;
2a519311
JB		 7158 break;
7159 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 7160 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7161 goto nla_put_failure;
2a519311
JB		 7162 break;
7163 default:
7164 break;
7165 }
7166
48ab905d 7167 switch (wdev->iftype) {
074ac8df 7168 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 7169 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 7170 if (intbss == wdev->current_bss &&
7171 nla_put_u32(msg, NL80211_BSS_STATUS,
7172 NL80211_BSS_STATUS_ASSOCIATED))
7173 goto nla_put_failure;
48ab905d
JB		 7174 break;
7175 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 7176 if (intbss == wdev->current_bss &&
7177 nla_put_u32(msg, NL80211_BSS_STATUS,
7178 NL80211_BSS_STATUS_IBSS_JOINED))
7179 goto nla_put_failure;
48ab905d
JB		 7180 break;
7181 default:
7182 break;
7183 }
7184
2a519311
JB		 7185 nla_nest_end(msg, bss);
7186
053c095a
JB		 7187 genlmsg_end(msg, hdr);
7188 return 0;
2a519311 7189
8cef2c9d
JB		 7190 fail_unlock_rcu:
7191 rcu_read_unlock();
2a519311
JB		 7192 nla_put_failure:
7193 genlmsg_cancel(msg, hdr);
7194 return -EMSGSIZE;
7195}
7196
97990a06 7197static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 7198{
48ab905d 7199 struct cfg80211_registered_device *rdev;
2a519311 7200 struct cfg80211_internal_bss *scan;
48ab905d 7201 struct wireless_dev *wdev;
97990a06 7202 int start = cb->args[2], idx = 0;
2a519311
JB		 7203 int err;
7204
97990a06 7205 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7206 if (err)
7207 return err;
2a519311 7208
48ab905d
JB		 7209 wdev_lock(wdev);
7210 spin_lock_bh(&rdev->bss_lock);
7211 cfg80211_bss_expire(rdev);
7212
9720bb3a
JB		 7213 cb->seq = rdev->bss_generation;
7214
48ab905d 7215 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 7216 if (++idx <= start)
7217 continue;
9720bb3a 7218 if (nl80211_send_bss(skb, cb,
2a519311 7219 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 7220 rdev, wdev, scan) < 0) {
2a519311 7221 idx--;
67748893 7222 break;
2a519311
JB		 7223 }
7224 }
7225
48ab905d
JB		 7226 spin_unlock_bh(&rdev->bss_lock);
7227 wdev_unlock(wdev);
2a519311 7228
97990a06
JB		 7229 cb->args[2] = idx;
7230 nl80211_finish_wdev_dump(rdev);
2a519311 7231
67748893 7232 return skb->len;
2a519311
JB		 7233}
7234
15e47304 7235static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7236 int flags, struct net_device *dev,
7237 bool allow_radio_stats,
7238 struct survey_info *survey)
61fa713c
HS		 7239{
7240 void *hdr;
7241 struct nlattr *infoattr;
7242
11f78ac3
JB		 7243 /* skip radio stats if userspace didn't request them */
7244 if (!survey->channel && !allow_radio_stats)
7245 return 0;
7246
15e47304 7247 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7248 NL80211_CMD_NEW_SURVEY_RESULTS);
7249 if (!hdr)
7250 return -ENOMEM;
7251
9360ffd1
DM		 7252 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7253 goto nla_put_failure;
61fa713c
HS		 7254
7255 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7256 if (!infoattr)
7257 goto nla_put_failure;
7258
11f78ac3
JB		 7259 if (survey->channel &&
7260 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7261 survey->channel->center_freq))
7262 goto nla_put_failure;
7263
7264 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7265 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7266 goto nla_put_failure;
7267 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7268 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7269 goto nla_put_failure;
4ed20beb 7270 if ((survey->filled & SURVEY_INFO_TIME) &&
2dad624e
ND		 7271 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7272 survey->time, NL80211_SURVEY_INFO_PAD))
9360ffd1 7273 goto nla_put_failure;
4ed20beb 7274 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
2dad624e
ND		 7275 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7276 survey->time_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7277 goto nla_put_failure;
4ed20beb 7278 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
2dad624e
ND		 7279 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7280 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7281 goto nla_put_failure;
4ed20beb 7282 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
2dad624e
ND		 7283 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7284 survey->time_rx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7285 goto nla_put_failure;
4ed20beb 7286 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
2dad624e
ND		 7287 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7288 survey->time_tx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7289 goto nla_put_failure;
052536ab 7290 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
2dad624e
ND		 7291 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7292 survey->time_scan, NL80211_SURVEY_INFO_PAD))
052536ab 7293 goto nla_put_failure;
61fa713c
HS		 7294
7295 nla_nest_end(msg, infoattr);
7296
053c095a
JB		 7297 genlmsg_end(msg, hdr);
7298 return 0;
61fa713c
HS		 7299
7300 nla_put_failure:
7301 genlmsg_cancel(msg, hdr);
7302 return -EMSGSIZE;
7303}
7304
11f78ac3 7305static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 7306{
7307 struct survey_info survey;
1b8ec87a 7308 struct cfg80211_registered_device *rdev;
97990a06
JB		 7309 struct wireless_dev *wdev;
7310 int survey_idx = cb->args[2];
61fa713c 7311 int res;
11f78ac3 7312 bool radio_stats;
61fa713c 7313
1b8ec87a 7314 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7315 if (res)
7316 return res;
61fa713c 7317
11f78ac3
JB		 7318 /* prepare_wdev_dump parsed the attributes */
7319 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
7320
97990a06
JB		 7321 if (!wdev->netdev) {
7322 res = -EINVAL;
7323 goto out_err;
7324 }
7325
1b8ec87a 7326 if (!rdev->ops->dump_survey) {
61fa713c
HS		 7327 res = -EOPNOTSUPP;
7328 goto out_err;
7329 }
7330
7331 while (1) {
1b8ec87a 7332 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 7333 if (res == -ENOENT)
7334 break;
7335 if (res)
7336 goto out_err;
7337
11f78ac3
JB		 7338 /* don't send disabled channels, but do send non-channel data */
7339 if (survey.channel &&
7340 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 7341 survey_idx++;
7342 continue;
7343 }
7344
61fa713c 7345 if (nl80211_send_survey(skb,
15e47304 7346 NETLINK_CB(cb->skb).portid,
61fa713c 7347 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 7348 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 7349 goto out;
7350 survey_idx++;
7351 }
7352
7353 out:
97990a06 7354 cb->args[2] = survey_idx;
61fa713c
HS		 7355 res = skb->len;
7356 out_err:
1b8ec87a 7357 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 7358 return res;
7359}
7360
b23aa676
SO		 7361static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7362{
7363 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7364 NL80211_WPA_VERSION_2));
7365}
7366
636a5d36
JM		 7367static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7368{
4c476991
JB		 7369 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7370 struct net_device *dev = info->user_ptr[1];
19957bb3 7371 struct ieee80211_channel *chan;
e39e5b5e
JM		 7372 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7373 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 7374 enum nl80211_auth_type auth_type;
fffd0934 7375 struct key_parse key;
d5cdfacb 7376 bool local_state_change;
636a5d36 7377
f4a11bb0
JB		 7378 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7379 return -EINVAL;
7380
7381 if (!info->attrs[NL80211_ATTR_MAC])
7382 return -EINVAL;
7383
1778092e
JM		 7384 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7385 return -EINVAL;
7386
19957bb3
JB		 7387 if (!info->attrs[NL80211_ATTR_SSID])
7388 return -EINVAL;
7389
7390 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7391 return -EINVAL;
7392
fffd0934
JB		 7393 err = nl80211_parse_key(info, &key);
7394 if (err)
7395 return err;
7396
7397 if (key.idx >= 0) {
e31b8213
JB		 7398 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7399 return -EINVAL;
fffd0934
JB		 7400 if (!key.p.key || !key.p.key_len)
7401 return -EINVAL;
7402 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7403 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7404 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7405 key.p.key_len != WLAN_KEY_LEN_WEP104))
7406 return -EINVAL;
b6b5555b 7407 if (key.idx > 3)
fffd0934
JB		 7408 return -EINVAL;
7409 } else {
7410 key.p.key_len = 0;
7411 key.p.key = NULL;
7412 }
7413
afea0b7a
JB		 7414 if (key.idx >= 0) {
7415 int i;
7416 bool ok = false;
7a087e74 7417
afea0b7a
JB		 7418 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7419 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7420 ok = true;
7421 break;
7422 }
7423 }
4c476991
JB		 7424 if (!ok)
7425 return -EINVAL;
afea0b7a
JB		 7426 }
7427
4c476991
JB		 7428 if (!rdev->ops->auth)
7429 return -EOPNOTSUPP;
636a5d36 7430
074ac8df 7431 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7432 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7433 return -EOPNOTSUPP;
eec60b03 7434
19957bb3 7435 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7436 chan = nl80211_get_valid_chan(&rdev->wiphy,
7437 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7438 if (!chan)
4c476991 7439 return -EINVAL;
636a5d36 7440
19957bb3
JB		 7441 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7442 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7443
7444 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7445 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7446 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7447 }
7448
19957bb3 7449 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7450 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7451 return -EINVAL;
636a5d36 7452
e39e5b5e
JM		 7453 if (auth_type == NL80211_AUTHTYPE_SAE &&
7454 !info->attrs[NL80211_ATTR_SAE_DATA])
7455 return -EINVAL;
7456
7457 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7458 if (auth_type != NL80211_AUTHTYPE_SAE)
7459 return -EINVAL;
7460 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7461 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7462 /* need to include at least Auth Transaction and Status Code */
7463 if (sae_data_len < 4)
7464 return -EINVAL;
7465 }
7466
d5cdfacb
JM		 7467 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7468
95de817b
JB		 7469 /*
7470 * Since we no longer track auth state, ignore
7471 * requests to only change local state.
7472 */
7473 if (local_state_change)
7474 return 0;
7475
91bf9b26
JB		 7476 wdev_lock(dev->ieee80211_ptr);
7477 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7478 ssid, ssid_len, ie, ie_len,
7479 key.p.key, key.p.key_len, key.idx,
7480 sae_data, sae_data_len);
7481 wdev_unlock(dev->ieee80211_ptr);
7482 return err;
636a5d36
JM		 7483}
7484
c0692b8f
JB		 7485static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7486 struct genl_info *info,
3dc27d25
JB		 7487 struct cfg80211_crypto_settings *settings,
7488 int cipher_limit)
b23aa676 7489{
c0b2bbd8
JB		 7490 memset(settings, 0, sizeof(*settings));
7491
b23aa676
SO		 7492 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7493
c0692b8f
JB		 7494 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7495 u16 proto;
7a087e74 7496
c0692b8f
JB		 7497 proto = nla_get_u16(
7498 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7499 settings->control_port_ethertype = cpu_to_be16(proto);
7500 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7501 proto != ETH_P_PAE)
7502 return -EINVAL;
7503 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7504 settings->control_port_no_encrypt = true;
7505 } else
7506 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7507
b23aa676
SO		 7508 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7509 void *data;
7510 int len, i;
7511
7512 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7513 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7514 settings->n_ciphers_pairwise = len / sizeof(u32);
7515
7516 if (len % sizeof(u32))
7517 return -EINVAL;
7518
3dc27d25 7519 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 7520 return -EINVAL;
7521
7522 memcpy(settings->ciphers_pairwise, data, len);
7523
7524 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 7525 if (!cfg80211_supported_cipher_suite(
7526 &rdev->wiphy,
b23aa676
SO		 7527 settings->ciphers_pairwise[i]))
7528 return -EINVAL;
7529 }
7530
7531 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7532 settings->cipher_group =
7533 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 7534 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7535 settings->cipher_group))
b23aa676
SO		 7536 return -EINVAL;
7537 }
7538
7539 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7540 settings->wpa_versions =
7541 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7542 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7543 return -EINVAL;
7544 }
7545
7546 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7547 void *data;
6d30240e 7548 int len;
b23aa676
SO		 7549
7550 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7551 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7552 settings->n_akm_suites = len / sizeof(u32);
7553
7554 if (len % sizeof(u32))
7555 return -EINVAL;
7556
1b9ca027
JM		 7557 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7558 return -EINVAL;
7559
b23aa676 7560 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 7561 }
7562
7563 return 0;
7564}
7565
636a5d36
JM		 7566static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7567{
4c476991
JB		 7568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7569 struct net_device *dev = info->user_ptr[1];
f444de05 7570 struct ieee80211_channel *chan;
f62fab73
JB		 7571 struct cfg80211_assoc_request req = {};
7572 const u8 *bssid, *ssid;
7573 int err, ssid_len = 0;
636a5d36 7574
f4a11bb0
JB		 7575 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7576 return -EINVAL;
7577
7578 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7579 !info->attrs[NL80211_ATTR_SSID] ||
7580 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7581 return -EINVAL;
7582
4c476991
JB		 7583 if (!rdev->ops->assoc)
7584 return -EOPNOTSUPP;
636a5d36 7585
074ac8df 7586 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7587 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7588 return -EOPNOTSUPP;
eec60b03 7589
19957bb3 7590 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7591
664834de
JM		 7592 chan = nl80211_get_valid_chan(&rdev->wiphy,
7593 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7594 if (!chan)
4c476991 7595 return -EINVAL;
636a5d36 7596
19957bb3
JB		 7597 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7598 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7599
7600 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7601 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7602 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7603 }
7604
dc6382ce 7605 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7606 enum nl80211_mfp mfp =
dc6382ce 7607 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7608 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7609 req.use_mfp = true;
4c476991
JB		 7610 else if (mfp != NL80211_MFP_NO)
7611 return -EINVAL;
dc6382ce
JM		 7612 }
7613
3e5d7649 7614 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7615 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7616
7e7c8926 7617 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7618 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7619
7620 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7621 memcpy(&req.ht_capa_mask,
7622 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7623 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7624
7625 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7626 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7627 return -EINVAL;
f62fab73
JB		 7628 memcpy(&req.ht_capa,
7629 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7630 sizeof(req.ht_capa));
7e7c8926
BG		 7631 }
7632
ee2aca34 7633 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7634 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7635
7636 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7637 memcpy(&req.vht_capa_mask,
7638 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7639 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7640
7641 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7642 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7643 return -EINVAL;
f62fab73
JB		 7644 memcpy(&req.vht_capa,
7645 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7646 sizeof(req.vht_capa));
ee2aca34
JB		 7647 }
7648
bab5ab7d 7649 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 7650 if (!((rdev->wiphy.features &
7651 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
7652 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
7653 !wiphy_ext_feature_isset(&rdev->wiphy,
7654 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 7655 return -EINVAL;
7656 req.flags |= ASSOC_REQ_USE_RRM;
7657 }
7658
f62fab73 7659 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7660 if (!err) {
7661 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7662 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7663 ssid, ssid_len, &req);
91bf9b26
JB		 7664 wdev_unlock(dev->ieee80211_ptr);
7665 }
636a5d36 7666
636a5d36
JM		 7667 return err;
7668}
7669
7670static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7671{
4c476991
JB		 7672 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7673 struct net_device *dev = info->user_ptr[1];
19957bb3 7674 const u8 *ie = NULL, *bssid;
91bf9b26 7675 int ie_len = 0, err;
19957bb3 7676 u16 reason_code;
d5cdfacb 7677 bool local_state_change;
636a5d36 7678
f4a11bb0
JB		 7679 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7680 return -EINVAL;
7681
7682 if (!info->attrs[NL80211_ATTR_MAC])
7683 return -EINVAL;
7684
7685 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7686 return -EINVAL;
7687
4c476991
JB		 7688 if (!rdev->ops->deauth)
7689 return -EOPNOTSUPP;
636a5d36 7690
074ac8df 7691 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7692 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7693 return -EOPNOTSUPP;
eec60b03 7694
19957bb3 7695 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7696
19957bb3
JB		 7697 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7698 if (reason_code == 0) {
f4a11bb0 7699 /* Reason Code 0 is reserved */
4c476991 7700 return -EINVAL;
255e737e 7701 }
636a5d36
JM		 7702
7703 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7704 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7705 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7706 }
7707
d5cdfacb
JM		 7708 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7709
91bf9b26
JB		 7710 wdev_lock(dev->ieee80211_ptr);
7711 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7712 local_state_change);
7713 wdev_unlock(dev->ieee80211_ptr);
7714 return err;
636a5d36
JM		 7715}
7716
7717static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7718{
4c476991
JB		 7719 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7720 struct net_device *dev = info->user_ptr[1];
19957bb3 7721 const u8 *ie = NULL, *bssid;
91bf9b26 7722 int ie_len = 0, err;
19957bb3 7723 u16 reason_code;
d5cdfacb 7724 bool local_state_change;
636a5d36 7725
f4a11bb0
JB		 7726 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7727 return -EINVAL;
7728
7729 if (!info->attrs[NL80211_ATTR_MAC])
7730 return -EINVAL;
7731
7732 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7733 return -EINVAL;
7734
4c476991
JB		 7735 if (!rdev->ops->disassoc)
7736 return -EOPNOTSUPP;
636a5d36 7737
074ac8df 7738 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7739 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7740 return -EOPNOTSUPP;
eec60b03 7741
19957bb3 7742 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7743
19957bb3
JB		 7744 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7745 if (reason_code == 0) {
f4a11bb0 7746 /* Reason Code 0 is reserved */
4c476991 7747 return -EINVAL;
255e737e 7748 }
636a5d36
JM		 7749
7750 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7751 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7752 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7753 }
7754
d5cdfacb
JM		 7755 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7756
91bf9b26
JB		 7757 wdev_lock(dev->ieee80211_ptr);
7758 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7759 local_state_change);
7760 wdev_unlock(dev->ieee80211_ptr);
7761 return err;
636a5d36
JM		 7762}
7763
dd5b4cc7
FF		 7764static bool
7765nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
57fbcce3 7766 int mcast_rate[NUM_NL80211_BANDS],
dd5b4cc7
FF		 7767 int rateval)
7768{
7769 struct wiphy *wiphy = &rdev->wiphy;
7770 bool found = false;
7771 int band, i;
7772
57fbcce3 7773 for (band = 0; band < NUM_NL80211_BANDS; band++) {
dd5b4cc7
FF		 7774 struct ieee80211_supported_band *sband;
7775
7776 sband = wiphy->bands[band];
7777 if (!sband)
7778 continue;
7779
7780 for (i = 0; i < sband->n_bitrates; i++) {
7781 if (sband->bitrates[i].bitrate == rateval) {
7782 mcast_rate[band] = i + 1;
7783 found = true;
7784 break;
7785 }
7786 }
7787 }
7788
7789 return found;
7790}
7791
04a773ad
JB		 7792static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7793{
4c476991
JB		 7794 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7795 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7796 struct cfg80211_ibss_params ibss;
7797 struct wiphy *wiphy;
fffd0934 7798 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7799 int err;
7800
8e30bc55
JB		 7801 memset(&ibss, 0, sizeof(ibss));
7802
04a773ad
JB		 7803 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7804 return -EINVAL;
7805
683b6d3b 7806 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7807 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7808 return -EINVAL;
7809
8e30bc55
JB		 7810 ibss.beacon_interval = 100;
7811
12d20fc9 7812 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8e30bc55
JB		 7813 ibss.beacon_interval =
7814 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9
PK		 7815
7816 err = cfg80211_validate_beacon_int(rdev, ibss.beacon_interval);
7817 if (err)
7818 return err;
8e30bc55 7819
4c476991
JB		 7820 if (!rdev->ops->join_ibss)
7821 return -EOPNOTSUPP;
04a773ad 7822
4c476991
JB		 7823 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7824 return -EOPNOTSUPP;
04a773ad 7825
79c97e97 7826 wiphy = &rdev->wiphy;
04a773ad 7827
39193498 7828 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7829 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7830
7831 if (!is_valid_ether_addr(ibss.bssid))
7832 return -EINVAL;
7833 }
04a773ad
JB		 7834 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7835 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7836
7837 if (info->attrs[NL80211_ATTR_IE]) {
7838 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7839 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7840 }
7841
683b6d3b
JB		 7842 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7843 if (err)
7844 return err;
04a773ad 7845
174e0cd2
IP		 7846 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7847 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7848 return -EINVAL;
7849
2f301ab2 7850 switch (ibss.chandef.width) {
bf372645
SW		 7851 case NL80211_CHAN_WIDTH_5:
7852 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7853 case NL80211_CHAN_WIDTH_20_NOHT:
7854 break;
7855 case NL80211_CHAN_WIDTH_20:
7856 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 7857 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7858 return -EINVAL;
7859 break;
7860 case NL80211_CHAN_WIDTH_80:
7861 case NL80211_CHAN_WIDTH_80P80:
7862 case NL80211_CHAN_WIDTH_160:
7863 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7864 return -EINVAL;
7865 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7866 NL80211_EXT_FEATURE_VHT_IBSS))
7867 return -EINVAL;
7868 break;
2f301ab2 7869 default:
c04d6150 7870 return -EINVAL;
2f301ab2 7871 }
db9c64cf 7872
04a773ad 7873 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7874 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7875
fbd2c8dc
TP		 7876 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7877 u8 *rates =
7878 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7879 int n_rates =
7880 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7881 struct ieee80211_supported_band *sband =
683b6d3b 7882 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7883
34850ab2
JB		 7884 err = ieee80211_get_ratemask(sband, rates, n_rates,
7885 &ibss.basic_rates);
7886 if (err)
7887 return err;
fbd2c8dc 7888 }
dd5b4cc7 7889
803768f5
SW		 7890 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7891 memcpy(&ibss.ht_capa_mask,
7892 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7893 sizeof(ibss.ht_capa_mask));
7894
7895 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7896 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7897 return -EINVAL;
7898 memcpy(&ibss.ht_capa,
7899 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7900 sizeof(ibss.ht_capa));
7901 }
7902
dd5b4cc7
FF		 7903 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7904 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7905 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7906 return -EINVAL;
fbd2c8dc 7907
4c476991 7908 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7909 bool no_ht = false;
7910
4c476991 7911 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7912 info->attrs[NL80211_ATTR_KEYS],
7913 &no_ht);
4c476991
JB		 7914 if (IS_ERR(connkeys))
7915 return PTR_ERR(connkeys);
de7044ee 7916
3d9d1d66
JB		 7917 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7918 no_ht) {
5e950a78 7919 kzfree(connkeys);
de7044ee
SM		 7920 return -EINVAL;
7921 }
4c476991 7922 }
04a773ad 7923
267335d6
AQ		 7924 ibss.control_port =
7925 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7926
5336fa88
SW		 7927 ibss.userspace_handles_dfs =
7928 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7929
4c476991 7930 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7931 if (err)
b47f610b 7932 kzfree(connkeys);
04a773ad
JB		 7933 return err;
7934}
7935
7936static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7937{
4c476991
JB		 7938 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7939 struct net_device *dev = info->user_ptr[1];
04a773ad 7940
4c476991
JB		 7941 if (!rdev->ops->leave_ibss)
7942 return -EOPNOTSUPP;
04a773ad 7943
4c476991
JB		 7944 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7945 return -EOPNOTSUPP;
04a773ad 7946
4c476991 7947 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7948}
7949
f4e583c8
AQ		 7950static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7951{
7952 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7953 struct net_device *dev = info->user_ptr[1];
57fbcce3 7954 int mcast_rate[NUM_NL80211_BANDS];
f4e583c8
AQ		 7955 u32 nla_rate;
7956 int err;
7957
7958 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 7959 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7960 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 7961 return -EOPNOTSUPP;
7962
7963 if (!rdev->ops->set_mcast_rate)
7964 return -EOPNOTSUPP;
7965
7966 memset(mcast_rate, 0, sizeof(mcast_rate));
7967
7968 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7969 return -EINVAL;
7970
7971 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7972 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7973 return -EINVAL;
7974
a1056b1b 7975 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 7976
7977 return err;
7978}
7979
ad7e718c
JB		 7980static struct sk_buff *
7981__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 7982 struct wireless_dev *wdev, int approxlen,
7983 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 7984 enum nl80211_attrs attr,
7985 const struct nl80211_vendor_cmd_info *info,
7986 gfp_t gfp)
ad7e718c
JB		 7987{
7988 struct sk_buff *skb;
7989 void *hdr;
7990 struct nlattr *data;
7991
7992 skb = nlmsg_new(approxlen + 100, gfp);
7993 if (!skb)
7994 return NULL;
7995
7996 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7997 if (!hdr) {
7998 kfree_skb(skb);
7999 return NULL;
8000 }
8001
8002 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
8003 goto nla_put_failure;
567ffc35
JB		 8004
8005 if (info) {
8006 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
8007 info->vendor_id))
8008 goto nla_put_failure;
8009 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
8010 info->subcmd))
8011 goto nla_put_failure;
8012 }
8013
6c09e791 8014 if (wdev) {
2dad624e
ND		 8015 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
8016 wdev_id(wdev), NL80211_ATTR_PAD))
6c09e791
AK		 8017 goto nla_put_failure;
8018 if (wdev->netdev &&
8019 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
8020 wdev->netdev->ifindex))
8021 goto nla_put_failure;
8022 }
8023
ad7e718c 8024 data = nla_nest_start(skb, attr);
76e1fb4b
JB		 8025 if (!data)
8026 goto nla_put_failure;
ad7e718c
JB		 8027
8028 ((void **)skb->cb)[0] = rdev;
8029 ((void **)skb->cb)[1] = hdr;
8030 ((void **)skb->cb)[2] = data;
8031
8032 return skb;
8033
8034 nla_put_failure:
8035 kfree_skb(skb);
8036 return NULL;
8037}
f4e583c8 8038
e03ad6ea 8039struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 8040 struct wireless_dev *wdev,
e03ad6ea
JB		 8041 enum nl80211_commands cmd,
8042 enum nl80211_attrs attr,
8043 int vendor_event_idx,
8044 int approxlen, gfp_t gfp)
8045{
f26cbf40 8046 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 8047 const struct nl80211_vendor_cmd_info *info;
8048
8049 switch (cmd) {
8050 case NL80211_CMD_TESTMODE:
8051 if (WARN_ON(vendor_event_idx != -1))
8052 return NULL;
8053 info = NULL;
8054 break;
8055 case NL80211_CMD_VENDOR:
8056 if (WARN_ON(vendor_event_idx < 0 ||
8057 vendor_event_idx >= wiphy->n_vendor_events))
8058 return NULL;
8059 info = &wiphy->vendor_events[vendor_event_idx];
8060 break;
8061 default:
8062 WARN_ON(1);
8063 return NULL;
8064 }
8065
6c09e791 8066 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 8067 cmd, attr, info, gfp);
8068}
8069EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8070
8071void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8072{
8073 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8074 void *hdr = ((void **)skb->cb)[1];
8075 struct nlattr *data = ((void **)skb->cb)[2];
8076 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8077
bd8c78e7
JB		 8078 /* clear CB data for netlink core to own from now on */
8079 memset(skb->cb, 0, sizeof(skb->cb));
8080
e03ad6ea
JB		 8081 nla_nest_end(skb, data);
8082 genlmsg_end(skb, hdr);
8083
8084 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8085 mcgrp = NL80211_MCGRP_VENDOR;
8086
8087 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8088 mcgrp, gfp);
8089}
8090EXPORT_SYMBOL(__cfg80211_send_event_skb);
8091
aff89a9b 8092#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 8093static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8094{
4c476991 8095 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 8096 struct wireless_dev *wdev =
8097 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 8098 int err;
8099
fc73f11f
DS		 8100 if (!rdev->ops->testmode_cmd)
8101 return -EOPNOTSUPP;
8102
8103 if (IS_ERR(wdev)) {
8104 err = PTR_ERR(wdev);
8105 if (err != -EINVAL)
8106 return err;
8107 wdev = NULL;
8108 } else if (wdev->wiphy != &rdev->wiphy) {
8109 return -EINVAL;
8110 }
8111
aff89a9b
JB		 8112 if (!info->attrs[NL80211_ATTR_TESTDATA])
8113 return -EINVAL;
8114
ad7e718c 8115 rdev->cur_cmd_info = info;
fc73f11f 8116 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 8117 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8118 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 8119 rdev->cur_cmd_info = NULL;
aff89a9b 8120
aff89a9b
JB		 8121 return err;
8122}
8123
71063f0e
WYG		 8124static int nl80211_testmode_dump(struct sk_buff *skb,
8125 struct netlink_callback *cb)
8126{
00918d33 8127 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 8128 int err;
8129 long phy_idx;
8130 void *data = NULL;
8131 int data_len = 0;
8132
5fe231e8
JB		 8133 rtnl_lock();
8134
71063f0e
WYG		 8135 if (cb->args[0]) {
8136 /*
8137 * 0 is a valid index, but not valid for args[0],
8138 * so we need to offset by 1.
8139 */
8140 phy_idx = cb->args[0] - 1;
8141 } else {
8142 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
8143 nl80211_fam.attrbuf, nl80211_fam.maxattr,
8144 nl80211_policy);
8145 if (err)
5fe231e8 8146 goto out_err;
00918d33 8147
2bd7e35d
JB		 8148 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
8149 nl80211_fam.attrbuf);
8150 if (IS_ERR(rdev)) {
5fe231e8
JB		 8151 err = PTR_ERR(rdev);
8152 goto out_err;
00918d33 8153 }
2bd7e35d
JB		 8154 phy_idx = rdev->wiphy_idx;
8155 rdev = NULL;
2bd7e35d 8156
71063f0e
WYG		 8157 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
8158 cb->args[1] =
8159 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
8160 }
8161
8162 if (cb->args[1]) {
8163 data = nla_data((void *)cb->args[1]);
8164 data_len = nla_len((void *)cb->args[1]);
8165 }
8166
00918d33
JB		 8167 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8168 if (!rdev) {
5fe231e8
JB		 8169 err = -ENOENT;
8170 goto out_err;
71063f0e 8171 }
71063f0e 8172
00918d33 8173 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 8174 err = -EOPNOTSUPP;
8175 goto out_err;
8176 }
8177
8178 while (1) {
15e47304 8179 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 8180 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8181 NL80211_CMD_TESTMODE);
8182 struct nlattr *tmdata;
8183
cb35fba3
DC		 8184 if (!hdr)
8185 break;
8186
9360ffd1 8187 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 8188 genlmsg_cancel(skb, hdr);
8189 break;
8190 }
8191
8192 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8193 if (!tmdata) {
8194 genlmsg_cancel(skb, hdr);
8195 break;
8196 }
e35e4d28 8197 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 8198 nla_nest_end(skb, tmdata);
8199
8200 if (err == -ENOBUFS || err == -ENOENT) {
8201 genlmsg_cancel(skb, hdr);
8202 break;
8203 } else if (err) {
8204 genlmsg_cancel(skb, hdr);
8205 goto out_err;
8206 }
8207
8208 genlmsg_end(skb, hdr);
8209 }
8210
8211 err = skb->len;
8212 /* see above */
8213 cb->args[0] = phy_idx + 1;
8214 out_err:
5fe231e8 8215 rtnl_unlock();
71063f0e
WYG		 8216 return err;
8217}
aff89a9b
JB		 8218#endif
8219
b23aa676
SO		 8220static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8221{
4c476991
JB		 8222 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8223 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 8224 struct cfg80211_connect_params connect;
8225 struct wiphy *wiphy;
fffd0934 8226 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 8227 int err;
8228
8229 memset(&connect, 0, sizeof(connect));
8230
8231 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8232 return -EINVAL;
8233
8234 if (!info->attrs[NL80211_ATTR_SSID] ||
8235 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8236 return -EINVAL;
8237
8238 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8239 connect.auth_type =
8240 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8241 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8242 NL80211_CMD_CONNECT))
b23aa676
SO		 8243 return -EINVAL;
8244 } else
8245 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8246
8247 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8248
c0692b8f 8249 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8250 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8251 if (err)
8252 return err;
b23aa676 8253
074ac8df 8254 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8255 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8256 return -EOPNOTSUPP;
b23aa676 8257
79c97e97 8258 wiphy = &rdev->wiphy;
b23aa676 8259
4486ea98
BS		 8260 connect.bg_scan_period = -1;
8261 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8262 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8263 connect.bg_scan_period =
8264 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8265 }
8266
b23aa676
SO		 8267 if (info->attrs[NL80211_ATTR_MAC])
8268 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8269 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8270 connect.bssid_hint =
8271 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8272 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8273 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8274
8275 if (info->attrs[NL80211_ATTR_IE]) {
8276 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8277 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8278 }
8279
cee00a95
JM		 8280 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8281 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8282 if (connect.mfp != NL80211_MFP_REQUIRED &&
8283 connect.mfp != NL80211_MFP_NO)
8284 return -EINVAL;
8285 } else {
8286 connect.mfp = NL80211_MFP_NO;
8287 }
8288
ba6fbacf
JM		 8289 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8290 connect.prev_bssid =
8291 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8292
b23aa676 8293 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 8294 connect.channel = nl80211_get_valid_chan(
8295 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8296 if (!connect.channel)
1df4a510
JM		 8297 return -EINVAL;
8298 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 8299 connect.channel_hint = nl80211_get_valid_chan(
8300 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8301 if (!connect.channel_hint)
4c476991 8302 return -EINVAL;
b23aa676
SO		 8303 }
8304
fffd0934
JB		 8305 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8306 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 8307 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 8308 if (IS_ERR(connkeys))
8309 return PTR_ERR(connkeys);
fffd0934
JB		 8310 }
8311
7e7c8926
BG		 8312 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8313 connect.flags |= ASSOC_REQ_DISABLE_HT;
8314
8315 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8316 memcpy(&connect.ht_capa_mask,
8317 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8318 sizeof(connect.ht_capa_mask));
8319
8320 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 8321 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 8322 kzfree(connkeys);
7e7c8926 8323 return -EINVAL;
b4e4f47e 8324 }
7e7c8926
BG		 8325 memcpy(&connect.ht_capa,
8326 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8327 sizeof(connect.ht_capa));
8328 }
8329
ee2aca34
JB		 8330 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8331 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8332
8333 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8334 memcpy(&connect.vht_capa_mask,
8335 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8336 sizeof(connect.vht_capa_mask));
8337
8338 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8339 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 8340 kzfree(connkeys);
ee2aca34
JB		 8341 return -EINVAL;
8342 }
8343 memcpy(&connect.vht_capa,
8344 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8345 sizeof(connect.vht_capa));
8346 }
8347
bab5ab7d 8348 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8349 if (!((rdev->wiphy.features &
8350 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8351 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8352 !wiphy_ext_feature_isset(&rdev->wiphy,
8353 NL80211_EXT_FEATURE_RRM)) {
707554b4 8354 kzfree(connkeys);
bab5ab7d 8355 return -EINVAL;
707554b4 8356 }
bab5ab7d
AK		 8357 connect.flags |= ASSOC_REQ_USE_RRM;
8358 }
8359
34d50519 8360 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 8361 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
34d50519
LD		 8362 kzfree(connkeys);
8363 return -EOPNOTSUPP;
8364 }
8365
38de03d2
AS		 8366 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8367 /* bss selection makes no sense if bssid is set */
8368 if (connect.bssid) {
8369 kzfree(connkeys);
8370 return -EINVAL;
8371 }
8372
8373 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8374 wiphy, &connect.bss_select);
8375 if (err) {
8376 kzfree(connkeys);
8377 return err;
8378 }
8379 }
8380
83739b03 8381 wdev_lock(dev->ieee80211_ptr);
4ce2bd9c
JM		 8382 err = cfg80211_connect(rdev, dev, &connect, connkeys,
8383 connect.prev_bssid);
83739b03 8384 wdev_unlock(dev->ieee80211_ptr);
fffd0934 8385 if (err)
b47f610b 8386 kzfree(connkeys);
b23aa676
SO		 8387 return err;
8388}
8389
8390static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8391{
4c476991
JB		 8392 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8393 struct net_device *dev = info->user_ptr[1];
b23aa676 8394 u16 reason;
83739b03 8395 int ret;
b23aa676
SO		 8396
8397 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8398 reason = WLAN_REASON_DEAUTH_LEAVING;
8399 else
8400 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8401
8402 if (reason == 0)
8403 return -EINVAL;
8404
074ac8df 8405 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8406 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8407 return -EOPNOTSUPP;
b23aa676 8408
83739b03
JB		 8409 wdev_lock(dev->ieee80211_ptr);
8410 ret = cfg80211_disconnect(rdev, dev, reason, true);
8411 wdev_unlock(dev->ieee80211_ptr);
8412 return ret;
b23aa676
SO		 8413}
8414
463d0183
JB		 8415static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8416{
4c476991 8417 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 8418 struct net *net;
8419 int err;
463d0183 8420
4b681c82
VK		 8421 if (info->attrs[NL80211_ATTR_PID]) {
8422 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8423
8424 net = get_net_ns_by_pid(pid);
8425 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8426 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 8427
4b681c82
VK		 8428 net = get_net_ns_by_fd(fd);
8429 } else {
8430 return -EINVAL;
8431 }
463d0183 8432
4c476991
JB		 8433 if (IS_ERR(net))
8434 return PTR_ERR(net);
463d0183
JB		 8435
8436 err = 0;
8437
8438 /* check if anything to do */
4c476991
JB		 8439 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8440 err = cfg80211_switch_netns(rdev, net);
463d0183 8441
463d0183 8442 put_net(net);
463d0183
JB		 8443 return err;
8444}
8445
67fbb16b
SO		 8446static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8447{
4c476991 8448 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 8449 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8450 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 8451 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 8452 struct cfg80211_pmksa pmksa;
8453
8454 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8455
8456 if (!info->attrs[NL80211_ATTR_MAC])
8457 return -EINVAL;
8458
8459 if (!info->attrs[NL80211_ATTR_PMKID])
8460 return -EINVAL;
8461
67fbb16b
SO		 8462 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8463 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8464
074ac8df 8465 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8466 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8467 return -EOPNOTSUPP;
67fbb16b
SO		 8468
8469 switch (info->genlhdr->cmd) {
8470 case NL80211_CMD_SET_PMKSA:
8471 rdev_ops = rdev->ops->set_pmksa;
8472 break;
8473 case NL80211_CMD_DEL_PMKSA:
8474 rdev_ops = rdev->ops->del_pmksa;
8475 break;
8476 default:
8477 WARN_ON(1);
8478 break;
8479 }
8480
4c476991
JB		 8481 if (!rdev_ops)
8482 return -EOPNOTSUPP;
67fbb16b 8483
4c476991 8484 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 8485}
8486
8487static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8488{
4c476991
JB		 8489 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8490 struct net_device *dev = info->user_ptr[1];
67fbb16b 8491
074ac8df 8492 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8493 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8494 return -EOPNOTSUPP;
67fbb16b 8495
4c476991
JB		 8496 if (!rdev->ops->flush_pmksa)
8497 return -EOPNOTSUPP;
67fbb16b 8498
e35e4d28 8499 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 8500}
8501
109086ce
AN		 8502static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8503{
8504 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8505 struct net_device *dev = info->user_ptr[1];
8506 u8 action_code, dialog_token;
df942e7b 8507 u32 peer_capability = 0;
109086ce
AN		 8508 u16 status_code;
8509 u8 *peer;
31fa97c5 8510 bool initiator;
109086ce
AN		 8511
8512 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8513 !rdev->ops->tdls_mgmt)
8514 return -EOPNOTSUPP;
8515
8516 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8517 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8518 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8519 !info->attrs[NL80211_ATTR_IE] ||
8520 !info->attrs[NL80211_ATTR_MAC])
8521 return -EINVAL;
8522
8523 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8524 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8525 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8526 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 8527 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 8528 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8529 peer_capability =
8530 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 8531
e35e4d28 8532 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 8533 dialog_token, status_code, peer_capability,
31fa97c5 8534 initiator,
e35e4d28
HG		 8535 nla_data(info->attrs[NL80211_ATTR_IE]),
8536 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 8537}
8538
8539static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8540{
8541 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8542 struct net_device *dev = info->user_ptr[1];
8543 enum nl80211_tdls_operation operation;
8544 u8 *peer;
8545
8546 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8547 !rdev->ops->tdls_oper)
8548 return -EOPNOTSUPP;
8549
8550 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8551 !info->attrs[NL80211_ATTR_MAC])
8552 return -EINVAL;
8553
8554 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8555 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8556
e35e4d28 8557 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 8558}
8559
9588bbd5
JM		 8560static int nl80211_remain_on_channel(struct sk_buff *skb,
8561 struct genl_info *info)
8562{
4c476991 8563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8564 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8565 struct cfg80211_chan_def chandef;
9588bbd5
JM		 8566 struct sk_buff *msg;
8567 void *hdr;
8568 u64 cookie;
683b6d3b 8569 u32 duration;
9588bbd5
JM		 8570 int err;
8571
8572 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8573 !info->attrs[NL80211_ATTR_DURATION])
8574 return -EINVAL;
8575
8576 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8577
ebf348fc
JB		 8578 if (!rdev->ops->remain_on_channel ||
8579 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8580 return -EOPNOTSUPP;
8581
9588bbd5 8582 /*
ebf348fc
JB		 8583 * We should be on that channel for at least a minimum amount of
8584 * time (10ms) but no longer than the driver supports.
9588bbd5 8585 */
ebf348fc 8586 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 8587 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 8588 return -EINVAL;
8589
683b6d3b
JB		 8590 err = nl80211_parse_chandef(rdev, info, &chandef);
8591 if (err)
8592 return err;
9588bbd5
JM		 8593
8594 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8595 if (!msg)
8596 return -ENOMEM;
9588bbd5 8597
15e47304 8598 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 8599 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 8600 if (!hdr) {
8601 err = -ENOBUFS;
9588bbd5
JM		 8602 goto free_msg;
8603 }
8604
683b6d3b
JB		 8605 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8606 duration, &cookie);
9588bbd5
JM		 8607
8608 if (err)
8609 goto free_msg;
8610
2dad624e
ND		 8611 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
8612 NL80211_ATTR_PAD))
9360ffd1 8613 goto nla_put_failure;
9588bbd5
JM		 8614
8615 genlmsg_end(msg, hdr);
4c476991
JB		 8616
8617 return genlmsg_reply(msg, info);
9588bbd5
JM		 8618
8619 nla_put_failure:
8620 err = -ENOBUFS;
8621 free_msg:
8622 nlmsg_free(msg);
9588bbd5
JM		 8623 return err;
8624}
8625
8626static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8627 struct genl_info *info)
8628{
4c476991 8629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8630 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8631 u64 cookie;
9588bbd5
JM		 8632
8633 if (!info->attrs[NL80211_ATTR_COOKIE])
8634 return -EINVAL;
8635
4c476991
JB		 8636 if (!rdev->ops->cancel_remain_on_channel)
8637 return -EOPNOTSUPP;
9588bbd5 8638
9588bbd5
JM		 8639 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8640
e35e4d28 8641 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8642}
8643
13ae75b1
JM		 8644static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8645 u8 *rates, u8 rates_len)
8646{
8647 u8 i;
8648 u32 mask = 0;
8649
8650 for (i = 0; i < rates_len; i++) {
8651 int rate = (rates[i] & 0x7f) * 5;
8652 int ridx;
7a087e74 8653
13ae75b1
JM		 8654 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8655 struct ieee80211_rate *srate =
8656 &sband->bitrates[ridx];
8657 if (rate == srate->bitrate) {
8658 mask |= 1 << ridx;
8659 break;
8660 }
8661 }
8662 if (ridx == sband->n_bitrates)
8663 return 0; /* rate not found */
8664 }
8665
8666 return mask;
8667}
8668
24db78c0
SW		 8669static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8670 u8 *rates, u8 rates_len,
8671 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8672{
8673 u8 i;
8674
8675 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8676
8677 for (i = 0; i < rates_len; i++) {
8678 int ridx, rbit;
8679
8680 ridx = rates[i] / 8;
8681 rbit = BIT(rates[i] % 8);
8682
8683 /* check validity */
910570b5 8684 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8685 return false;
8686
8687 /* check availability */
8688 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8689 mcs[ridx] |= rbit;
8690 else
8691 return false;
8692 }
8693
8694 return true;
8695}
8696
204e35a9
JD		 8697static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8698{
8699 u16 mcs_mask = 0;
8700
8701 switch (vht_mcs_map) {
8702 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8703 break;
8704 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8705 mcs_mask = 0x00FF;
8706 break;
8707 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8708 mcs_mask = 0x01FF;
8709 break;
8710 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8711 mcs_mask = 0x03FF;
8712 break;
8713 default:
8714 break;
8715 }
8716
8717 return mcs_mask;
8718}
8719
8720static void vht_build_mcs_mask(u16 vht_mcs_map,
8721 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8722{
8723 u8 nss;
8724
8725 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8726 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8727 vht_mcs_map >>= 2;
8728 }
8729}
8730
8731static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8732 struct nl80211_txrate_vht *txrate,
8733 u16 mcs[NL80211_VHT_NSS_MAX])
8734{
8735 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8736 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8737 u8 i;
8738
8739 if (!sband->vht_cap.vht_supported)
8740 return false;
8741
8742 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8743
8744 /* Build vht_mcs_mask from VHT capabilities */
8745 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8746
8747 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8748 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8749 mcs[i] = txrate->mcs[i];
8750 else
8751 return false;
8752 }
8753
8754 return true;
8755}
8756
b54452b0 8757static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8758 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8759 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8760 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8761 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8762 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8763 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8764};
8765
8766static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8767 struct genl_info *info)
8768{
8769 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8770 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8771 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8772 int rem, i;
8773 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8774 struct nlattr *tx_rates;
8775 struct ieee80211_supported_band *sband;
204e35a9 8776 u16 vht_tx_mcs_map;
13ae75b1 8777
4c476991
JB		 8778 if (!rdev->ops->set_bitrate_mask)
8779 return -EOPNOTSUPP;
13ae75b1
JM		 8780
8781 memset(&mask, 0, sizeof(mask));
8782 /* Default to all rates enabled */
57fbcce3 8783 for (i = 0; i < NUM_NL80211_BANDS; i++) {
13ae75b1 8784 sband = rdev->wiphy.bands[i];
7869303b
JD		 8785
8786 if (!sband)
8787 continue;
8788
8789 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8790 memcpy(mask.control[i].ht_mcs,
7869303b 8791 sband->ht_cap.mcs.rx_mask,
d1e33e65 8792 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8793
8794 if (!sband->vht_cap.vht_supported)
8795 continue;
8796
8797 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8798 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8799 }
8800
b9243ab0
JD		 8801 /* if no rates are given set it back to the defaults */
8802 if (!info->attrs[NL80211_ATTR_TX_RATES])
8803 goto out;
8804
13ae75b1
JM		 8805 /*
8806 * The nested attribute uses enum nl80211_band as the index. This maps
57fbcce3 8807 * directly to the enum nl80211_band values used in cfg80211.
13ae75b1 8808 */
24db78c0 8809 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8810 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
57fbcce3 8811 enum nl80211_band band = nla_type(tx_rates);
ae811e21
JB		 8812 int err;
8813
57fbcce3 8814 if (band < 0 || band >= NUM_NL80211_BANDS)
4c476991 8815 return -EINVAL;
13ae75b1 8816 sband = rdev->wiphy.bands[band];
4c476991
JB		 8817 if (sband == NULL)
8818 return -EINVAL;
ae811e21
JB		 8819 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8820 nla_len(tx_rates), nl80211_txattr_policy);
8821 if (err)
8822 return err;
13ae75b1
JM		 8823 if (tb[NL80211_TXRATE_LEGACY]) {
8824 mask.control[band].legacy = rateset_to_mask(
8825 sband,
8826 nla_data(tb[NL80211_TXRATE_LEGACY]),
8827 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8828 if ((mask.control[band].legacy == 0) &&
8829 nla_len(tb[NL80211_TXRATE_LEGACY]))
8830 return -EINVAL;
24db78c0 8831 }
d1e33e65 8832 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8833 if (!ht_rateset_to_mask(
8834 sband,
d1e33e65
JD		 8835 nla_data(tb[NL80211_TXRATE_HT]),
8836 nla_len(tb[NL80211_TXRATE_HT]),
8837 mask.control[band].ht_mcs))
24db78c0
SW		 8838 return -EINVAL;
8839 }
204e35a9
JD		 8840 if (tb[NL80211_TXRATE_VHT]) {
8841 if (!vht_set_mcs_mask(
8842 sband,
8843 nla_data(tb[NL80211_TXRATE_VHT]),
8844 mask.control[band].vht_mcs))
8845 return -EINVAL;
8846 }
0b9323f6
JD		 8847 if (tb[NL80211_TXRATE_GI]) {
8848 mask.control[band].gi =
8849 nla_get_u8(tb[NL80211_TXRATE_GI]);
8850 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8851 return -EINVAL;
8852 }
24db78c0
SW		 8853
8854 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8855 /* don't allow empty legacy rates if HT or VHT
8856 * are not even supported.
8857 */
8858 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8859 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8860 return -EINVAL;
8861
8862 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8863 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8864 goto out;
8865
8866 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8867 if (mask.control[band].vht_mcs[i])
8868 goto out;
24db78c0
SW		 8869
8870 /* legacy and mcs rates may not be both empty */
204e35a9 8871 return -EINVAL;
13ae75b1
JM		 8872 }
8873 }
8874
b9243ab0 8875out:
e35e4d28 8876 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8877}
8878
2e161f78 8879static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8880{
4c476991 8881 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8882 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8883 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8884
8885 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8886 return -EINVAL;
8887
2e161f78
JB		 8888 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8889 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8890
71bbc994
JB		 8891 switch (wdev->iftype) {
8892 case NL80211_IFTYPE_STATION:
8893 case NL80211_IFTYPE_ADHOC:
8894 case NL80211_IFTYPE_P2P_CLIENT:
8895 case NL80211_IFTYPE_AP:
8896 case NL80211_IFTYPE_AP_VLAN:
8897 case NL80211_IFTYPE_MESH_POINT:
8898 case NL80211_IFTYPE_P2P_GO:
98104fde 8899 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8900 break;
8901 default:
4c476991 8902 return -EOPNOTSUPP;
71bbc994 8903 }
026331c4
JM		 8904
8905 /* not much point in registering if we can't reply */
4c476991
JB		 8906 if (!rdev->ops->mgmt_tx)
8907 return -EOPNOTSUPP;
026331c4 8908
15e47304 8909 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8910 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8911 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8912}
8913
2e161f78 8914static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8915{
4c476991 8916 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8917 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8918 struct cfg80211_chan_def chandef;
026331c4 8919 int err;
d64d373f 8920 void *hdr = NULL;
026331c4 8921 u64 cookie;
e247bd90 8922 struct sk_buff *msg = NULL;
b176e629
AO		 8923 struct cfg80211_mgmt_tx_params params = {
8924 .dont_wait_for_ack =
8925 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8926 };
026331c4 8927
683b6d3b 8928 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8929 return -EINVAL;
8930
4c476991
JB		 8931 if (!rdev->ops->mgmt_tx)
8932 return -EOPNOTSUPP;
026331c4 8933
71bbc994 8934 switch (wdev->iftype) {
ea141b75
AQ		 8935 case NL80211_IFTYPE_P2P_DEVICE:
8936 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8937 return -EINVAL;
71bbc994
JB		 8938 case NL80211_IFTYPE_STATION:
8939 case NL80211_IFTYPE_ADHOC:
8940 case NL80211_IFTYPE_P2P_CLIENT:
8941 case NL80211_IFTYPE_AP:
8942 case NL80211_IFTYPE_AP_VLAN:
8943 case NL80211_IFTYPE_MESH_POINT:
8944 case NL80211_IFTYPE_P2P_GO:
8945 break;
8946 default:
4c476991 8947 return -EOPNOTSUPP;
71bbc994 8948 }
026331c4 8949
f7ca38df 8950 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8951 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8952 return -EINVAL;
b176e629 8953 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8954
8955 /*
8956 * We should wait on the channel for at least a minimum amount
8957 * of time (10ms) but no longer than the driver supports.
8958 */
b176e629
AO		 8959 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8960 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc 8961 return -EINVAL;
f7ca38df
JB		 8962 }
8963
b176e629 8964 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8965
b176e629 8966 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8967 return -EINVAL;
8968
b176e629 8969 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8970
ea141b75
AQ		 8971 /* get the channel if any has been specified, otherwise pass NULL to
8972 * the driver. The latter will use the current one
8973 */
8974 chandef.chan = NULL;
8975 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8976 err = nl80211_parse_chandef(rdev, info, &chandef);
8977 if (err)
8978 return err;
8979 }
8980
b176e629 8981 if (!chandef.chan && params.offchan)
ea141b75 8982 return -EINVAL;
026331c4 8983
34d22ce2
AO		 8984 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8985 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8986
8987 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8988 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8989 int i;
8990
8991 if (len % sizeof(u16))
8992 return -EINVAL;
8993
8994 params.n_csa_offsets = len / sizeof(u16);
8995 params.csa_offsets =
8996 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8997
8998 /* check that all the offsets fit the frame */
8999 for (i = 0; i < params.n_csa_offsets; i++) {
9000 if (params.csa_offsets[i] >= params.len)
9001 return -EINVAL;
9002 }
9003 }
9004
b176e629 9005 if (!params.dont_wait_for_ack) {
e247bd90
JB		 9006 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9007 if (!msg)
9008 return -ENOMEM;
026331c4 9009
15e47304 9010 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 9011 NL80211_CMD_FRAME);
cb35fba3
DC		 9012 if (!hdr) {
9013 err = -ENOBUFS;
e247bd90
JB		 9014 goto free_msg;
9015 }
026331c4 9016 }
e247bd90 9017
b176e629
AO		 9018 params.chan = chandef.chan;
9019 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 9020 if (err)
9021 goto free_msg;
9022
e247bd90 9023 if (msg) {
2dad624e
ND		 9024 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9025 NL80211_ATTR_PAD))
9360ffd1 9026 goto nla_put_failure;
026331c4 9027
e247bd90
JB		 9028 genlmsg_end(msg, hdr);
9029 return genlmsg_reply(msg, info);
9030 }
9031
9032 return 0;
026331c4
JM		 9033
9034 nla_put_failure:
9035 err = -ENOBUFS;
9036 free_msg:
9037 nlmsg_free(msg);
026331c4
JM		 9038 return err;
9039}
9040
f7ca38df
JB		 9041static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
9042{
9043 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9044 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 9045 u64 cookie;
9046
9047 if (!info->attrs[NL80211_ATTR_COOKIE])
9048 return -EINVAL;
9049
9050 if (!rdev->ops->mgmt_tx_cancel_wait)
9051 return -EOPNOTSUPP;
9052
71bbc994
JB		 9053 switch (wdev->iftype) {
9054 case NL80211_IFTYPE_STATION:
9055 case NL80211_IFTYPE_ADHOC:
9056 case NL80211_IFTYPE_P2P_CLIENT:
9057 case NL80211_IFTYPE_AP:
9058 case NL80211_IFTYPE_AP_VLAN:
9059 case NL80211_IFTYPE_P2P_GO:
98104fde 9060 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 9061 break;
9062 default:
f7ca38df 9063 return -EOPNOTSUPP;
71bbc994 9064 }
f7ca38df
JB		 9065
9066 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9067
e35e4d28 9068 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 9069}
9070
ffb9eb3d
KV		 9071static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9072{
4c476991 9073 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 9074 struct wireless_dev *wdev;
4c476991 9075 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9076 u8 ps_state;
9077 bool state;
9078 int err;
9079
4c476991
JB		 9080 if (!info->attrs[NL80211_ATTR_PS_STATE])
9081 return -EINVAL;
ffb9eb3d
KV		 9082
9083 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9084
4c476991
JB		 9085 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9086 return -EINVAL;
ffb9eb3d
KV		 9087
9088 wdev = dev->ieee80211_ptr;
9089
4c476991
JB		 9090 if (!rdev->ops->set_power_mgmt)
9091 return -EOPNOTSUPP;
ffb9eb3d
KV		 9092
9093 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9094
9095 if (state == wdev->ps)
4c476991 9096 return 0;
ffb9eb3d 9097
e35e4d28 9098 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 9099 if (!err)
9100 wdev->ps = state;
ffb9eb3d
KV		 9101 return err;
9102}
9103
9104static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9105{
4c476991 9106 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 9107 enum nl80211_ps_state ps_state;
9108 struct wireless_dev *wdev;
4c476991 9109 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9110 struct sk_buff *msg;
9111 void *hdr;
9112 int err;
9113
ffb9eb3d
KV		 9114 wdev = dev->ieee80211_ptr;
9115
4c476991
JB		 9116 if (!rdev->ops->set_power_mgmt)
9117 return -EOPNOTSUPP;
ffb9eb3d
KV		 9118
9119 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9120 if (!msg)
9121 return -ENOMEM;
ffb9eb3d 9122
15e47304 9123 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 9124 NL80211_CMD_GET_POWER_SAVE);
9125 if (!hdr) {
4c476991 9126 err = -ENOBUFS;
ffb9eb3d
KV		 9127 goto free_msg;
9128 }
9129
9130 if (wdev->ps)
9131 ps_state = NL80211_PS_ENABLED;
9132 else
9133 ps_state = NL80211_PS_DISABLED;
9134
9360ffd1
DM		 9135 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9136 goto nla_put_failure;
ffb9eb3d
KV		 9137
9138 genlmsg_end(msg, hdr);
4c476991 9139 return genlmsg_reply(msg, info);
ffb9eb3d 9140
4c476991 9141 nla_put_failure:
ffb9eb3d 9142 err = -ENOBUFS;
4c476991 9143 free_msg:
ffb9eb3d 9144 nlmsg_free(msg);
ffb9eb3d
KV		 9145 return err;
9146}
9147
94e860f1
JB		 9148static const struct nla_policy
9149nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 9150 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
9151 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9152 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 9153 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9154 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9155 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 9156};
9157
84f10708 9158static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 9159 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 9160{
9161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 9162 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9163 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 9164
d9d8b019 9165 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 9166 return -EINVAL;
9167
84f10708
TP		 9168 if (!rdev->ops->set_cqm_txe_config)
9169 return -EOPNOTSUPP;
9170
9171 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9172 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9173 return -EOPNOTSUPP;
9174
e35e4d28 9175 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 9176}
9177
d6dc1a38
JO		 9178static int nl80211_set_cqm_rssi(struct genl_info *info,
9179 s32 threshold, u32 hysteresis)
9180{
4c476991 9181 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9182 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9183 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 9184
9185 if (threshold > 0)
9186 return -EINVAL;
9187
1da5fcc8
JB		 9188 /* disabling - hysteresis should also be zero then */
9189 if (threshold == 0)
9190 hysteresis = 0;
d6dc1a38 9191
4c476991
JB		 9192 if (!rdev->ops->set_cqm_rssi_config)
9193 return -EOPNOTSUPP;
d6dc1a38 9194
074ac8df 9195 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9196 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9197 return -EOPNOTSUPP;
d6dc1a38 9198
e35e4d28 9199 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 9200}
9201
9202static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9203{
9204 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9205 struct nlattr *cqm;
9206 int err;
9207
9208 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 9209 if (!cqm)
9210 return -EINVAL;
d6dc1a38
JO		 9211
9212 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
9213 nl80211_attr_cqm_policy);
9214 if (err)
1da5fcc8 9215 return err;
d6dc1a38
JO		 9216
9217 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9218 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 9219 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9220 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 9221
1da5fcc8
JB		 9222 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
9223 }
9224
9225 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9226 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9227 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9228 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9229 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9230 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9231
9232 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9233 }
9234
9235 return -EINVAL;
d6dc1a38
JO		 9236}
9237
6e0bd6c3
RL		 9238static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9239{
9240 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9241 struct net_device *dev = info->user_ptr[1];
9242 struct ocb_setup setup = {};
9243 int err;
9244
9245 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9246 if (err)
9247 return err;
9248
9249 return cfg80211_join_ocb(rdev, dev, &setup);
9250}
9251
9252static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9253{
9254 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9255 struct net_device *dev = info->user_ptr[1];
9256
9257 return cfg80211_leave_ocb(rdev, dev);
9258}
9259
29cbe68c
JB		 9260static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9261{
9262 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9263 struct net_device *dev = info->user_ptr[1];
9264 struct mesh_config cfg;
c80d545d 9265 struct mesh_setup setup;
29cbe68c
JB		 9266 int err;
9267
9268 /* start with default */
9269 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9270 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9271
24bdd9f4 9272 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9273 /* and parse parameters if given */
24bdd9f4 9274 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9275 if (err)
9276 return err;
9277 }
9278
9279 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9280 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9281 return -EINVAL;
9282
c80d545d
JC		 9283 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9284 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9285
4bb62344
CYY		 9286 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9287 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9288 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9289 return -EINVAL;
9290
9bdbf04d
MP		 9291 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9292 setup.beacon_interval =
9293 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9
PK		 9294
9295 err = cfg80211_validate_beacon_int(rdev, setup.beacon_interval);
9296 if (err)
9297 return err;
9bdbf04d
MP		 9298 }
9299
9300 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9301 setup.dtim_period =
9302 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9303 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9304 return -EINVAL;
9305 }
9306
c80d545d
JC		 9307 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9308 /* parse additional setup parameters if given */
9309 err = nl80211_parse_mesh_setup(info, &setup);
9310 if (err)
9311 return err;
9312 }
9313
d37bb18a
TP		 9314 if (setup.user_mpm)
9315 cfg.auto_open_plinks = false;
9316
cc1d2806 9317 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 9318 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9319 if (err)
9320 return err;
cc1d2806
JB		 9321 } else {
9322 /* cfg80211_join_mesh() will sort it out */
683b6d3b 9323 setup.chandef.chan = NULL;
cc1d2806
JB		 9324 }
9325
ffb3cf30
AN		 9326 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9327 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9328 int n_rates =
9329 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9330 struct ieee80211_supported_band *sband;
9331
9332 if (!setup.chandef.chan)
9333 return -EINVAL;
9334
9335 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9336
9337 err = ieee80211_get_ratemask(sband, rates, n_rates,
9338 &setup.basic_rates);
9339 if (err)
9340 return err;
9341 }
9342
c80d545d 9343 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 9344}
9345
9346static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9347{
9348 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9349 struct net_device *dev = info->user_ptr[1];
9350
9351 return cfg80211_leave_mesh(rdev, dev);
9352}
9353
dfb89c56 9354#ifdef CONFIG_PM
bb92d199
AK		 9355static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9356 struct cfg80211_registered_device *rdev)
9357{
6abb9cb9 9358 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 9359 struct nlattr *nl_pats, *nl_pat;
9360 int i, pat_len;
9361
6abb9cb9 9362 if (!wowlan->n_patterns)
bb92d199
AK		 9363 return 0;
9364
9365 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9366 if (!nl_pats)
9367 return -ENOBUFS;
9368
6abb9cb9 9369 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 9370 nl_pat = nla_nest_start(msg, i + 1);
9371 if (!nl_pat)
9372 return -ENOBUFS;
6abb9cb9 9373 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 9374 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 9375 wowlan->patterns[i].mask) ||
50ac6607
AK		 9376 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9377 wowlan->patterns[i].pattern) ||
9378 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 9379 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 9380 return -ENOBUFS;
9381 nla_nest_end(msg, nl_pat);
9382 }
9383 nla_nest_end(msg, nl_pats);
9384
9385 return 0;
9386}
9387
2a0e047e
JB		 9388static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9389 struct cfg80211_wowlan_tcp *tcp)
9390{
9391 struct nlattr *nl_tcp;
9392
9393 if (!tcp)
9394 return 0;
9395
9396 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9397 if (!nl_tcp)
9398 return -ENOBUFS;
9399
930345ea
JB		 9400 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9401 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 9402 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9403 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9404 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9405 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9406 tcp->payload_len, tcp->payload) ||
9407 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9408 tcp->data_interval) ||
9409 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9410 tcp->wake_len, tcp->wake_data) ||
9411 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9412 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9413 return -ENOBUFS;
9414
9415 if (tcp->payload_seq.len &&
9416 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9417 sizeof(tcp->payload_seq), &tcp->payload_seq))
9418 return -ENOBUFS;
9419
9420 if (tcp->payload_tok.len &&
9421 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9422 sizeof(tcp->payload_tok) + tcp->tokens_size,
9423 &tcp->payload_tok))
9424 return -ENOBUFS;
9425
e248ad30
JB		 9426 nla_nest_end(msg, nl_tcp);
9427
2a0e047e
JB		 9428 return 0;
9429}
9430
75453ccb
LC		 9431static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9432 struct cfg80211_sched_scan_request *req)
9433{
3b06d277 9434 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 9435 int i;
9436
9437 if (!req)
9438 return 0;
9439
9440 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9441 if (!nd)
9442 return -ENOBUFS;
9443
3b06d277
AS		 9444 if (req->n_scan_plans == 1 &&
9445 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9446 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9447 return -ENOBUFS;
9448
21fea567
LC		 9449 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9450 return -ENOBUFS;
9451
75453ccb
LC		 9452 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9453 if (!freqs)
9454 return -ENOBUFS;
9455
53b18980
JB		 9456 for (i = 0; i < req->n_channels; i++) {
9457 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9458 return -ENOBUFS;
9459 }
75453ccb
LC		 9460
9461 nla_nest_end(msg, freqs);
9462
9463 if (req->n_match_sets) {
9464 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
76e1fb4b
JB		 9465 if (!matches)
9466 return -ENOBUFS;
9467
75453ccb
LC		 9468 for (i = 0; i < req->n_match_sets; i++) {
9469 match = nla_nest_start(msg, i);
76e1fb4b
JB		 9470 if (!match)
9471 return -ENOBUFS;
9472
53b18980
JB		 9473 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9474 req->match_sets[i].ssid.ssid_len,
9475 req->match_sets[i].ssid.ssid))
9476 return -ENOBUFS;
75453ccb
LC		 9477 nla_nest_end(msg, match);
9478 }
9479 nla_nest_end(msg, matches);
9480 }
9481
3b06d277
AS		 9482 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9483 if (!scan_plans)
9484 return -ENOBUFS;
9485
9486 for (i = 0; i < req->n_scan_plans; i++) {
9487 scan_plan = nla_nest_start(msg, i + 1);
76e1fb4b
JB		 9488 if (!scan_plan)
9489 return -ENOBUFS;
9490
3b06d277
AS		 9491 if (!scan_plan ||
9492 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9493 req->scan_plans[i].interval) ||
9494 (req->scan_plans[i].iterations &&
9495 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9496 req->scan_plans[i].iterations)))
9497 return -ENOBUFS;
9498 nla_nest_end(msg, scan_plan);
9499 }
9500 nla_nest_end(msg, scan_plans);
9501
75453ccb
LC		 9502 nla_nest_end(msg, nd);
9503
9504 return 0;
9505}
9506
ff1b6e69
JB		 9507static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9508{
9509 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9510 struct sk_buff *msg;
9511 void *hdr;
2a0e047e 9512 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 9513
964dc9e2 9514 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 9515 return -EOPNOTSUPP;
9516
6abb9cb9 9517 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 9518 /* adjust size to have room for all the data */
6abb9cb9
JB		 9519 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9520 rdev->wiphy.wowlan_config->tcp->payload_len +
9521 rdev->wiphy.wowlan_config->tcp->wake_len +
9522 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 9523 }
9524
9525 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 9526 if (!msg)
9527 return -ENOMEM;
9528
15e47304 9529 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 9530 NL80211_CMD_GET_WOWLAN);
9531 if (!hdr)
9532 goto nla_put_failure;
9533
6abb9cb9 9534 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 9535 struct nlattr *nl_wowlan;
9536
9537 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9538 if (!nl_wowlan)
9539 goto nla_put_failure;
9540
6abb9cb9 9541 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 9542 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 9543 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 9544 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 9545 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 9546 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 9547 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 9548 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 9549 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 9550 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 9551 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 9552 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 9553 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 9554 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9555 goto nla_put_failure;
2a0e047e 9556
bb92d199
AK		 9557 if (nl80211_send_wowlan_patterns(msg, rdev))
9558 goto nla_put_failure;
2a0e047e 9559
6abb9cb9
JB		 9560 if (nl80211_send_wowlan_tcp(msg,
9561 rdev->wiphy.wowlan_config->tcp))
2a0e047e 9562 goto nla_put_failure;
75453ccb
LC		 9563
9564 if (nl80211_send_wowlan_nd(
9565 msg,
9566 rdev->wiphy.wowlan_config->nd_config))
9567 goto nla_put_failure;
2a0e047e 9568
ff1b6e69
JB		 9569 nla_nest_end(msg, nl_wowlan);
9570 }
9571
9572 genlmsg_end(msg, hdr);
9573 return genlmsg_reply(msg, info);
9574
9575nla_put_failure:
9576 nlmsg_free(msg);
9577 return -ENOBUFS;
9578}
9579
2a0e047e
JB		 9580static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9581 struct nlattr *attr,
9582 struct cfg80211_wowlan *trig)
9583{
9584 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9585 struct cfg80211_wowlan_tcp *cfg;
9586 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9587 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9588 u32 size;
9589 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9590 int err, port;
9591
964dc9e2 9592 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 9593 return -EINVAL;
9594
9595 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9596 nla_data(attr), nla_len(attr),
9597 nl80211_wowlan_tcp_policy);
9598 if (err)
9599 return err;
9600
9601 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9602 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9603 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9604 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9605 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9606 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9607 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9608 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9609 return -EINVAL;
9610
9611 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 9612 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 9613 return -EINVAL;
9614
9615 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 9616 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 9617 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 9618 return -EINVAL;
9619
9620 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9621 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9622 return -EINVAL;
9623
9624 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9625 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9626 return -EINVAL;
9627
9628 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9629 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9630
9631 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9632 tokens_size = tokln - sizeof(*tok);
9633
9634 if (!tok->len || tokens_size % tok->len)
9635 return -EINVAL;
964dc9e2 9636 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9637 return -EINVAL;
964dc9e2 9638 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9639 return -EINVAL;
964dc9e2 9640 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9641 return -EINVAL;
964dc9e2 9642 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9643 return -EINVAL;
9644 if (tok->offset + tok->len > data_size)
9645 return -EINVAL;
9646 }
9647
9648 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9649 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9650 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9651 return -EINVAL;
9652 if (seq->len == 0 || seq->len > 4)
9653 return -EINVAL;
9654 if (seq->len + seq->offset > data_size)
9655 return -EINVAL;
9656 }
9657
9658 size = sizeof(*cfg);
9659 size += data_size;
9660 size += wake_size + wake_mask_size;
9661 size += tokens_size;
9662
9663 cfg = kzalloc(size, GFP_KERNEL);
9664 if (!cfg)
9665 return -ENOMEM;
67b61f6c
JB		 9666 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9667 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 9668 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9669 ETH_ALEN);
9670 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9671 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9672 else
9673 port = 0;
9674#ifdef CONFIG_INET
9675 /* allocate a socket and port for it and use it */
9676 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9677 IPPROTO_TCP, &cfg->sock, 1);
9678 if (err) {
9679 kfree(cfg);
9680 return err;
9681 }
9682 if (inet_csk_get_port(cfg->sock->sk, port)) {
9683 sock_release(cfg->sock);
9684 kfree(cfg);
9685 return -EADDRINUSE;
9686 }
9687 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9688#else
9689 if (!port) {
9690 kfree(cfg);
9691 return -EINVAL;
9692 }
9693 cfg->src_port = port;
9694#endif
9695
9696 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9697 cfg->payload_len = data_size;
9698 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9699 memcpy((void *)cfg->payload,
9700 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9701 data_size);
9702 if (seq)
9703 cfg->payload_seq = *seq;
9704 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9705 cfg->wake_len = wake_size;
9706 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9707 memcpy((void *)cfg->wake_data,
9708 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9709 wake_size);
9710 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9711 data_size + wake_size;
9712 memcpy((void *)cfg->wake_mask,
9713 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9714 wake_mask_size);
9715 if (tok) {
9716 cfg->tokens_size = tokens_size;
9717 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9718 }
9719
9720 trig->tcp = cfg;
9721
9722 return 0;
9723}
9724
8cd4d456
LC		 9725static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9726 const struct wiphy_wowlan_support *wowlan,
9727 struct nlattr *attr,
9728 struct cfg80211_wowlan *trig)
9729{
9730 struct nlattr **tb;
9731 int err;
9732
9733 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9734 if (!tb)
9735 return -ENOMEM;
9736
9737 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9738 err = -EOPNOTSUPP;
9739 goto out;
9740 }
9741
9742 err = nla_parse(tb, NL80211_ATTR_MAX,
9743 nla_data(attr), nla_len(attr),
9744 nl80211_policy);
9745 if (err)
9746 goto out;
9747
ad2b26ab 9748 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9749 err = PTR_ERR_OR_ZERO(trig->nd_config);
9750 if (err)
9751 trig->nd_config = NULL;
9752
9753out:
9754 kfree(tb);
9755 return err;
9756}
9757
ff1b6e69
JB		 9758static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9759{
9760 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9761 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9762 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9763 struct cfg80211_wowlan *ntrig;
964dc9e2 9764 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9765 int err, i;
6abb9cb9 9766 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 9767 bool regular = false;
ff1b6e69 9768
964dc9e2 9769 if (!wowlan)
ff1b6e69
JB		 9770 return -EOPNOTSUPP;
9771
ae33bd81
JB		 9772 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9773 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9774 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9775 goto set_wakeup;
9776 }
ff1b6e69
JB		 9777
9778 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9779 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9780 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9781 nl80211_wowlan_policy);
9782 if (err)
9783 return err;
9784
9785 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9786 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9787 return -EINVAL;
9788 new_triggers.any = true;
9789 }
9790
9791 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9792 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9793 return -EINVAL;
9794 new_triggers.disconnect = true;
98fc4386 9795 regular = true;
ff1b6e69
JB		 9796 }
9797
9798 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9799 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9800 return -EINVAL;
9801 new_triggers.magic_pkt = true;
98fc4386 9802 regular = true;
ff1b6e69
JB		 9803 }
9804
77dbbb13
JB		 9805 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9806 return -EINVAL;
9807
9808 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9809 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9810 return -EINVAL;
9811 new_triggers.gtk_rekey_failure = true;
98fc4386 9812 regular = true;
77dbbb13
JB		 9813 }
9814
9815 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9816 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9817 return -EINVAL;
9818 new_triggers.eap_identity_req = true;
98fc4386 9819 regular = true;
77dbbb13
JB		 9820 }
9821
9822 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9823 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9824 return -EINVAL;
9825 new_triggers.four_way_handshake = true;
98fc4386 9826 regular = true;
77dbbb13
JB		 9827 }
9828
9829 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9830 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9831 return -EINVAL;
9832 new_triggers.rfkill_release = true;
98fc4386 9833 regular = true;
77dbbb13
JB		 9834 }
9835
ff1b6e69
JB		 9836 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9837 struct nlattr *pat;
9838 int n_patterns = 0;
bb92d199 9839 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9840 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 9841
98fc4386
JB		 9842 regular = true;
9843
ff1b6e69
JB		 9844 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9845 rem)
9846 n_patterns++;
9847 if (n_patterns > wowlan->n_patterns)
9848 return -EINVAL;
9849
9850 new_triggers.patterns = kcalloc(n_patterns,
9851 sizeof(new_triggers.patterns[0]),
9852 GFP_KERNEL);
9853 if (!new_triggers.patterns)
9854 return -ENOMEM;
9855
9856 new_triggers.n_patterns = n_patterns;
9857 i = 0;
9858
9859 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9860 rem) {
922bd80f
JB		 9861 u8 *mask_pat;
9862
50ac6607
AK		 9863 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9864 nla_len(pat), NULL);
ff1b6e69 9865 err = -EINVAL;
50ac6607
AK		 9866 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9867 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9868 goto error;
50ac6607 9869 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9870 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9871 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9872 goto error;
9873 if (pat_len > wowlan->pattern_max_len ||
9874 pat_len < wowlan->pattern_min_len)
9875 goto error;
9876
50ac6607 9877 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9878 pkt_offset = 0;
9879 else
9880 pkt_offset = nla_get_u32(
50ac6607 9881 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9882 if (pkt_offset > wowlan->max_pkt_offset)
9883 goto error;
9884 new_triggers.patterns[i].pkt_offset = pkt_offset;
9885
922bd80f
JB		 9886 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9887 if (!mask_pat) {
ff1b6e69
JB		 9888 err = -ENOMEM;
9889 goto error;
9890 }
922bd80f
JB		 9891 new_triggers.patterns[i].mask = mask_pat;
9892 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9893 mask_len);
922bd80f
JB		 9894 mask_pat += mask_len;
9895 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9896 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9897 memcpy(mask_pat,
50ac6607 9898 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9899 pat_len);
9900 i++;
9901 }
9902 }
9903
2a0e047e 9904 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 9905 regular = true;
2a0e047e
JB		 9906 err = nl80211_parse_wowlan_tcp(
9907 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9908 &new_triggers);
9909 if (err)
9910 goto error;
9911 }
9912
8cd4d456 9913 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 9914 regular = true;
8cd4d456
LC		 9915 err = nl80211_parse_wowlan_nd(
9916 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9917 &new_triggers);
9918 if (err)
9919 goto error;
9920 }
9921
98fc4386
JB		 9922 /* The 'any' trigger means the device continues operating more or less
9923 * as in its normal operation mode and wakes up the host on most of the
9924 * normal interrupts (like packet RX, ...)
9925 * It therefore makes little sense to combine with the more constrained
9926 * wakeup trigger modes.
9927 */
9928 if (new_triggers.any && regular) {
9929 err = -EINVAL;
9930 goto error;
9931 }
9932
ae33bd81
JB		 9933 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9934 if (!ntrig) {
9935 err = -ENOMEM;
9936 goto error;
ff1b6e69 9937 }
ae33bd81 9938 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9939 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9940
ae33bd81 9941 set_wakeup:
6abb9cb9
JB		 9942 if (rdev->ops->set_wakeup &&
9943 prev_enabled != !!rdev->wiphy.wowlan_config)
9944 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9945
ff1b6e69
JB		 9946 return 0;
9947 error:
9948 for (i = 0; i < new_triggers.n_patterns; i++)
9949 kfree(new_triggers.patterns[i].mask);
9950 kfree(new_triggers.patterns);
2a0e047e
JB		 9951 if (new_triggers.tcp && new_triggers.tcp->sock)
9952 sock_release(new_triggers.tcp->sock);
9953 kfree(new_triggers.tcp);
e5dbe070 9954 kfree(new_triggers.nd_config);
ff1b6e69
JB		 9955 return err;
9956}
dfb89c56 9957#endif
ff1b6e69 9958
be29b99a
AK		 9959static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9960 struct cfg80211_registered_device *rdev)
9961{
9962 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9963 int i, j, pat_len;
9964 struct cfg80211_coalesce_rules *rule;
9965
9966 if (!rdev->coalesce->n_rules)
9967 return 0;
9968
9969 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9970 if (!nl_rules)
9971 return -ENOBUFS;
9972
9973 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9974 nl_rule = nla_nest_start(msg, i + 1);
9975 if (!nl_rule)
9976 return -ENOBUFS;
9977
9978 rule = &rdev->coalesce->rules[i];
9979 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9980 rule->delay))
9981 return -ENOBUFS;
9982
9983 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9984 rule->condition))
9985 return -ENOBUFS;
9986
9987 nl_pats = nla_nest_start(msg,
9988 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9989 if (!nl_pats)
9990 return -ENOBUFS;
9991
9992 for (j = 0; j < rule->n_patterns; j++) {
9993 nl_pat = nla_nest_start(msg, j + 1);
9994 if (!nl_pat)
9995 return -ENOBUFS;
9996 pat_len = rule->patterns[j].pattern_len;
9997 if (nla_put(msg, NL80211_PKTPAT_MASK,
9998 DIV_ROUND_UP(pat_len, 8),
9999 rule->patterns[j].mask) ||
10000 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10001 rule->patterns[j].pattern) ||
10002 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10003 rule->patterns[j].pkt_offset))
10004 return -ENOBUFS;
10005 nla_nest_end(msg, nl_pat);
10006 }
10007 nla_nest_end(msg, nl_pats);
10008 nla_nest_end(msg, nl_rule);
10009 }
10010 nla_nest_end(msg, nl_rules);
10011
10012 return 0;
10013}
10014
10015static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
10016{
10017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10018 struct sk_buff *msg;
10019 void *hdr;
10020
10021 if (!rdev->wiphy.coalesce)
10022 return -EOPNOTSUPP;
10023
10024 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10025 if (!msg)
10026 return -ENOMEM;
10027
10028 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10029 NL80211_CMD_GET_COALESCE);
10030 if (!hdr)
10031 goto nla_put_failure;
10032
10033 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
10034 goto nla_put_failure;
10035
10036 genlmsg_end(msg, hdr);
10037 return genlmsg_reply(msg, info);
10038
10039nla_put_failure:
10040 nlmsg_free(msg);
10041 return -ENOBUFS;
10042}
10043
10044void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
10045{
10046 struct cfg80211_coalesce *coalesce = rdev->coalesce;
10047 int i, j;
10048 struct cfg80211_coalesce_rules *rule;
10049
10050 if (!coalesce)
10051 return;
10052
10053 for (i = 0; i < coalesce->n_rules; i++) {
10054 rule = &coalesce->rules[i];
10055 for (j = 0; j < rule->n_patterns; j++)
10056 kfree(rule->patterns[j].mask);
10057 kfree(rule->patterns);
10058 }
10059 kfree(coalesce->rules);
10060 kfree(coalesce);
10061 rdev->coalesce = NULL;
10062}
10063
10064static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10065 struct nlattr *rule,
10066 struct cfg80211_coalesce_rules *new_rule)
10067{
10068 int err, i;
10069 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10070 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10071 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10072 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10073
10074 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
10075 nla_len(rule), nl80211_coalesce_policy);
10076 if (err)
10077 return err;
10078
10079 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10080 new_rule->delay =
10081 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10082 if (new_rule->delay > coalesce->max_delay)
10083 return -EINVAL;
10084
10085 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10086 new_rule->condition =
10087 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10088 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10089 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10090 return -EINVAL;
10091
10092 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10093 return -EINVAL;
10094
10095 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10096 rem)
10097 n_patterns++;
10098 if (n_patterns > coalesce->n_patterns)
10099 return -EINVAL;
10100
10101 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10102 GFP_KERNEL);
10103 if (!new_rule->patterns)
10104 return -ENOMEM;
10105
10106 new_rule->n_patterns = n_patterns;
10107 i = 0;
10108
10109 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10110 rem) {
922bd80f
JB		 10111 u8 *mask_pat;
10112
be29b99a
AK		 10113 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
10114 nla_len(pat), NULL);
10115 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10116 !pat_tb[NL80211_PKTPAT_PATTERN])
10117 return -EINVAL;
10118 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10119 mask_len = DIV_ROUND_UP(pat_len, 8);
10120 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10121 return -EINVAL;
10122 if (pat_len > coalesce->pattern_max_len ||
10123 pat_len < coalesce->pattern_min_len)
10124 return -EINVAL;
10125
10126 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10127 pkt_offset = 0;
10128 else
10129 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10130 if (pkt_offset > coalesce->max_pkt_offset)
10131 return -EINVAL;
10132 new_rule->patterns[i].pkt_offset = pkt_offset;
10133
922bd80f
JB		 10134 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10135 if (!mask_pat)
be29b99a 10136 return -ENOMEM;
922bd80f
JB		 10137
10138 new_rule->patterns[i].mask = mask_pat;
10139 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10140 mask_len);
10141
10142 mask_pat += mask_len;
10143 new_rule->patterns[i].pattern = mask_pat;
be29b99a 10144 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 10145 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10146 pat_len);
be29b99a
AK		 10147 i++;
10148 }
10149
10150 return 0;
10151}
10152
10153static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10154{
10155 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10156 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10157 struct cfg80211_coalesce new_coalesce = {};
10158 struct cfg80211_coalesce *n_coalesce;
10159 int err, rem_rule, n_rules = 0, i, j;
10160 struct nlattr *rule;
10161 struct cfg80211_coalesce_rules *tmp_rule;
10162
10163 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10164 return -EOPNOTSUPP;
10165
10166 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10167 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 10168 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 10169 return 0;
10170 }
10171
10172 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10173 rem_rule)
10174 n_rules++;
10175 if (n_rules > coalesce->n_rules)
10176 return -EINVAL;
10177
10178 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10179 GFP_KERNEL);
10180 if (!new_coalesce.rules)
10181 return -ENOMEM;
10182
10183 new_coalesce.n_rules = n_rules;
10184 i = 0;
10185
10186 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10187 rem_rule) {
10188 err = nl80211_parse_coalesce_rule(rdev, rule,
10189 &new_coalesce.rules[i]);
10190 if (err)
10191 goto error;
10192
10193 i++;
10194 }
10195
a1056b1b 10196 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 10197 if (err)
10198 goto error;
10199
10200 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10201 if (!n_coalesce) {
10202 err = -ENOMEM;
10203 goto error;
10204 }
10205 cfg80211_rdev_free_coalesce(rdev);
10206 rdev->coalesce = n_coalesce;
10207
10208 return 0;
10209error:
10210 for (i = 0; i < new_coalesce.n_rules; i++) {
10211 tmp_rule = &new_coalesce.rules[i];
10212 for (j = 0; j < tmp_rule->n_patterns; j++)
10213 kfree(tmp_rule->patterns[j].mask);
10214 kfree(tmp_rule->patterns);
10215 }
10216 kfree(new_coalesce.rules);
10217
10218 return err;
10219}
10220
e5497d76
JB		 10221static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10222{
10223 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10224 struct net_device *dev = info->user_ptr[1];
10225 struct wireless_dev *wdev = dev->ieee80211_ptr;
10226 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10227 struct cfg80211_gtk_rekey_data rekey_data;
10228 int err;
10229
10230 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10231 return -EINVAL;
10232
10233 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
10234 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
10235 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
10236 nl80211_rekey_policy);
10237 if (err)
10238 return err;
10239
10240 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10241 return -ERANGE;
10242 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10243 return -ERANGE;
10244 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10245 return -ERANGE;
10246
78f686ca
JB		 10247 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10248 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10249 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 10250
10251 wdev_lock(wdev);
10252 if (!wdev->current_bss) {
10253 err = -ENOTCONN;
10254 goto out;
10255 }
10256
10257 if (!rdev->ops->set_rekey_data) {
10258 err = -EOPNOTSUPP;
10259 goto out;
10260 }
10261
e35e4d28 10262 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 10263 out:
10264 wdev_unlock(wdev);
10265 return err;
10266}
10267
28946da7
JB		 10268static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10269 struct genl_info *info)
10270{
10271 struct net_device *dev = info->user_ptr[1];
10272 struct wireless_dev *wdev = dev->ieee80211_ptr;
10273
10274 if (wdev->iftype != NL80211_IFTYPE_AP &&
10275 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10276 return -EINVAL;
10277
15e47304 10278 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 10279 return -EBUSY;
10280
15e47304 10281 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 10282 return 0;
10283}
10284
7f6cf311
JB		 10285static int nl80211_probe_client(struct sk_buff *skb,
10286 struct genl_info *info)
10287{
10288 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10289 struct net_device *dev = info->user_ptr[1];
10290 struct wireless_dev *wdev = dev->ieee80211_ptr;
10291 struct sk_buff *msg;
10292 void *hdr;
10293 const u8 *addr;
10294 u64 cookie;
10295 int err;
10296
10297 if (wdev->iftype != NL80211_IFTYPE_AP &&
10298 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10299 return -EOPNOTSUPP;
10300
10301 if (!info->attrs[NL80211_ATTR_MAC])
10302 return -EINVAL;
10303
10304 if (!rdev->ops->probe_client)
10305 return -EOPNOTSUPP;
10306
10307 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10308 if (!msg)
10309 return -ENOMEM;
10310
15e47304 10311 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 10312 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 10313 if (!hdr) {
10314 err = -ENOBUFS;
7f6cf311
JB		 10315 goto free_msg;
10316 }
10317
10318 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10319
e35e4d28 10320 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 10321 if (err)
10322 goto free_msg;
10323
2dad624e
ND		 10324 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10325 NL80211_ATTR_PAD))
9360ffd1 10326 goto nla_put_failure;
7f6cf311
JB		 10327
10328 genlmsg_end(msg, hdr);
10329
10330 return genlmsg_reply(msg, info);
10331
10332 nla_put_failure:
10333 err = -ENOBUFS;
10334 free_msg:
10335 nlmsg_free(msg);
10336 return err;
10337}
10338
5e760230
JB		 10339static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10340{
10341 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 10342 struct cfg80211_beacon_registration *reg, *nreg;
10343 int rv;
5e760230
JB		 10344
10345 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10346 return -EOPNOTSUPP;
10347
37c73b5f
BG		 10348 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10349 if (!nreg)
10350 return -ENOMEM;
10351
10352 /* First, check if already registered. */
10353 spin_lock_bh(&rdev->beacon_registrations_lock);
10354 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10355 if (reg->nlportid == info->snd_portid) {
10356 rv = -EALREADY;
10357 goto out_err;
10358 }
10359 }
10360 /* Add it to the list */
10361 nreg->nlportid = info->snd_portid;
10362 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 10363
37c73b5f 10364 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10365
10366 return 0;
37c73b5f
BG		 10367out_err:
10368 spin_unlock_bh(&rdev->beacon_registrations_lock);
10369 kfree(nreg);
10370 return rv;
5e760230
JB		 10371}
10372
98104fde
JB		 10373static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10374{
10375 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10376 struct wireless_dev *wdev = info->user_ptr[1];
10377 int err;
10378
10379 if (!rdev->ops->start_p2p_device)
10380 return -EOPNOTSUPP;
10381
10382 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10383 return -EOPNOTSUPP;
10384
10385 if (wdev->p2p_started)
10386 return 0;
10387
b6a55015
LC		 10388 if (rfkill_blocked(rdev->rfkill))
10389 return -ERFKILL;
98104fde 10390
eeb126e9 10391 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 10392 if (err)
10393 return err;
10394
10395 wdev->p2p_started = true;
98104fde 10396 rdev->opencount++;
98104fde
JB		 10397
10398 return 0;
10399}
10400
10401static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10402{
10403 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10404 struct wireless_dev *wdev = info->user_ptr[1];
10405
10406 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10407 return -EOPNOTSUPP;
10408
10409 if (!rdev->ops->stop_p2p_device)
10410 return -EOPNOTSUPP;
10411
f9f47529 10412 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 10413
10414 return 0;
10415}
10416
3713b4e3
JB		 10417static int nl80211_get_protocol_features(struct sk_buff *skb,
10418 struct genl_info *info)
10419{
10420 void *hdr;
10421 struct sk_buff *msg;
10422
10423 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10424 if (!msg)
10425 return -ENOMEM;
10426
10427 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10428 NL80211_CMD_GET_PROTOCOL_FEATURES);
10429 if (!hdr)
10430 goto nla_put_failure;
10431
10432 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
10433 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
10434 goto nla_put_failure;
10435
10436 genlmsg_end(msg, hdr);
10437 return genlmsg_reply(msg, info);
10438
10439 nla_put_failure:
10440 kfree_skb(msg);
10441 return -ENOBUFS;
10442}
10443
355199e0
JM		 10444static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
10445{
10446 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10447 struct cfg80211_update_ft_ies_params ft_params;
10448 struct net_device *dev = info->user_ptr[1];
10449
10450 if (!rdev->ops->update_ft_ies)
10451 return -EOPNOTSUPP;
10452
10453 if (!info->attrs[NL80211_ATTR_MDID] ||
10454 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
10455 return -EINVAL;
10456
10457 memset(&ft_params, 0, sizeof(ft_params));
10458 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10459 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10460 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10461
10462 return rdev_update_ft_ies(rdev, dev, &ft_params);
10463}
10464
5de17984
AS		 10465static int nl80211_crit_protocol_start(struct sk_buff *skb,
10466 struct genl_info *info)
10467{
10468 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10469 struct wireless_dev *wdev = info->user_ptr[1];
10470 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10471 u16 duration;
10472 int ret;
10473
10474 if (!rdev->ops->crit_proto_start)
10475 return -EOPNOTSUPP;
10476
10477 if (WARN_ON(!rdev->ops->crit_proto_stop))
10478 return -EINVAL;
10479
10480 if (rdev->crit_proto_nlportid)
10481 return -EBUSY;
10482
10483 /* determine protocol if provided */
10484 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10485 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10486
10487 if (proto >= NUM_NL80211_CRIT_PROTO)
10488 return -EINVAL;
10489
10490 /* timeout must be provided */
10491 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10492 return -EINVAL;
10493
10494 duration =
10495 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10496
10497 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10498 return -ERANGE;
10499
10500 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10501 if (!ret)
10502 rdev->crit_proto_nlportid = info->snd_portid;
10503
10504 return ret;
10505}
10506
10507static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10508 struct genl_info *info)
10509{
10510 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10511 struct wireless_dev *wdev = info->user_ptr[1];
10512
10513 if (!rdev->ops->crit_proto_stop)
10514 return -EOPNOTSUPP;
10515
10516 if (rdev->crit_proto_nlportid) {
10517 rdev->crit_proto_nlportid = 0;
10518 rdev_crit_proto_stop(rdev, wdev);
10519 }
10520 return 0;
10521}
10522
ad7e718c
JB		 10523static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10524{
10525 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10526 struct wireless_dev *wdev =
10527 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10528 int i, err;
10529 u32 vid, subcmd;
10530
10531 if (!rdev->wiphy.vendor_commands)
10532 return -EOPNOTSUPP;
10533
10534 if (IS_ERR(wdev)) {
10535 err = PTR_ERR(wdev);
10536 if (err != -EINVAL)
10537 return err;
10538 wdev = NULL;
10539 } else if (wdev->wiphy != &rdev->wiphy) {
10540 return -EINVAL;
10541 }
10542
10543 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10544 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10545 return -EINVAL;
10546
10547 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10548 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10549 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10550 const struct wiphy_vendor_command *vcmd;
10551 void *data = NULL;
10552 int len = 0;
10553
10554 vcmd = &rdev->wiphy.vendor_commands[i];
10555
10556 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10557 continue;
10558
10559 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10560 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10561 if (!wdev)
10562 return -EINVAL;
10563 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10564 !wdev->netdev)
10565 return -EINVAL;
10566
10567 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10568 if (wdev->netdev &&
10569 !netif_running(wdev->netdev))
10570 return -ENETDOWN;
10571 if (!wdev->netdev && !wdev->p2p_started)
10572 return -ENETDOWN;
10573 }
7bdbe400
JB		 10574
10575 if (!vcmd->doit)
10576 return -EOPNOTSUPP;
ad7e718c
JB		 10577 } else {
10578 wdev = NULL;
10579 }
10580
10581 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10582 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10583 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10584 }
10585
10586 rdev->cur_cmd_info = info;
10587 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10588 data, len);
10589 rdev->cur_cmd_info = NULL;
10590 return err;
10591 }
10592
10593 return -EOPNOTSUPP;
10594}
10595
7bdbe400
JB		 10596static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10597 struct netlink_callback *cb,
10598 struct cfg80211_registered_device **rdev,
10599 struct wireless_dev **wdev)
10600{
10601 u32 vid, subcmd;
10602 unsigned int i;
10603 int vcmd_idx = -1;
10604 int err;
10605 void *data = NULL;
10606 unsigned int data_len = 0;
10607
10608 rtnl_lock();
10609
10610 if (cb->args[0]) {
10611 /* subtract the 1 again here */
10612 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10613 struct wireless_dev *tmp;
10614
10615 if (!wiphy) {
10616 err = -ENODEV;
10617 goto out_unlock;
10618 }
10619 *rdev = wiphy_to_rdev(wiphy);
10620 *wdev = NULL;
10621
10622 if (cb->args[1]) {
53873f13 10623 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
7bdbe400
JB		 10624 if (tmp->identifier == cb->args[1] - 1) {
10625 *wdev = tmp;
10626 break;
10627 }
10628 }
10629 }
10630
10631 /* keep rtnl locked in successful case */
10632 return 0;
10633 }
10634
10635 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10636 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10637 nl80211_policy);
10638 if (err)
10639 goto out_unlock;
10640
10641 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10642 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10643 err = -EINVAL;
10644 goto out_unlock;
10645 }
10646
10647 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10648 nl80211_fam.attrbuf);
10649 if (IS_ERR(*wdev))
10650 *wdev = NULL;
10651
10652 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10653 nl80211_fam.attrbuf);
10654 if (IS_ERR(*rdev)) {
10655 err = PTR_ERR(*rdev);
10656 goto out_unlock;
10657 }
10658
10659 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10660 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10661
10662 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10663 const struct wiphy_vendor_command *vcmd;
10664
10665 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10666
10667 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10668 continue;
10669
10670 if (!vcmd->dumpit) {
10671 err = -EOPNOTSUPP;
10672 goto out_unlock;
10673 }
10674
10675 vcmd_idx = i;
10676 break;
10677 }
10678
10679 if (vcmd_idx < 0) {
10680 err = -EOPNOTSUPP;
10681 goto out_unlock;
10682 }
10683
10684 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10685 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10686 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10687 }
10688
10689 /* 0 is the first index - add 1 to parse only once */
10690 cb->args[0] = (*rdev)->wiphy_idx + 1;
10691 /* add 1 to know if it was NULL */
10692 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10693 cb->args[2] = vcmd_idx;
10694 cb->args[3] = (unsigned long)data;
10695 cb->args[4] = data_len;
10696
10697 /* keep rtnl locked in successful case */
10698 return 0;
10699 out_unlock:
10700 rtnl_unlock();
10701 return err;
10702}
10703
10704static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10705 struct netlink_callback *cb)
10706{
10707 struct cfg80211_registered_device *rdev;
10708 struct wireless_dev *wdev;
10709 unsigned int vcmd_idx;
10710 const struct wiphy_vendor_command *vcmd;
10711 void *data;
10712 int data_len;
10713 int err;
10714 struct nlattr *vendor_data;
10715
10716 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10717 if (err)
10718 return err;
10719
10720 vcmd_idx = cb->args[2];
10721 data = (void *)cb->args[3];
10722 data_len = cb->args[4];
10723 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10724
10725 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10726 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10727 if (!wdev)
10728 return -EINVAL;
10729 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10730 !wdev->netdev)
10731 return -EINVAL;
10732
10733 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10734 if (wdev->netdev &&
10735 !netif_running(wdev->netdev))
10736 return -ENETDOWN;
10737 if (!wdev->netdev && !wdev->p2p_started)
10738 return -ENETDOWN;
10739 }
10740 }
10741
10742 while (1) {
10743 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10744 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10745 NL80211_CMD_VENDOR);
10746 if (!hdr)
10747 break;
10748
10749 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 10750 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
10751 wdev_id(wdev),
10752 NL80211_ATTR_PAD))) {
7bdbe400
JB		 10753 genlmsg_cancel(skb, hdr);
10754 break;
10755 }
10756
10757 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10758 if (!vendor_data) {
10759 genlmsg_cancel(skb, hdr);
10760 break;
10761 }
10762
10763 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10764 (unsigned long *)&cb->args[5]);
10765 nla_nest_end(skb, vendor_data);
10766
10767 if (err == -ENOBUFS || err == -ENOENT) {
10768 genlmsg_cancel(skb, hdr);
10769 break;
10770 } else if (err) {
10771 genlmsg_cancel(skb, hdr);
10772 goto out;
10773 }
10774
10775 genlmsg_end(skb, hdr);
10776 }
10777
10778 err = skb->len;
10779 out:
10780 rtnl_unlock();
10781 return err;
10782}
10783
ad7e718c
JB		 10784struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10785 enum nl80211_commands cmd,
10786 enum nl80211_attrs attr,
10787 int approxlen)
10788{
f26cbf40 10789 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 10790
10791 if (WARN_ON(!rdev->cur_cmd_info))
10792 return NULL;
10793
6c09e791 10794 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 10795 rdev->cur_cmd_info->snd_portid,
10796 rdev->cur_cmd_info->snd_seq,
567ffc35 10797 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 10798}
10799EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10800
10801int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10802{
10803 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10804 void *hdr = ((void **)skb->cb)[1];
10805 struct nlattr *data = ((void **)skb->cb)[2];
10806
bd8c78e7
JB		 10807 /* clear CB data for netlink core to own from now on */
10808 memset(skb->cb, 0, sizeof(skb->cb));
10809
ad7e718c
JB		 10810 if (WARN_ON(!rdev->cur_cmd_info)) {
10811 kfree_skb(skb);
10812 return -EINVAL;
10813 }
10814
10815 nla_nest_end(skb, data);
10816 genlmsg_end(skb, hdr);
10817 return genlmsg_reply(skb, rdev->cur_cmd_info);
10818}
10819EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10820
fa9ffc74
KP		 10821static int nl80211_set_qos_map(struct sk_buff *skb,
10822 struct genl_info *info)
10823{
10824 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10825 struct cfg80211_qos_map *qos_map = NULL;
10826 struct net_device *dev = info->user_ptr[1];
10827 u8 *pos, len, num_des, des_len, des;
10828 int ret;
10829
10830 if (!rdev->ops->set_qos_map)
10831 return -EOPNOTSUPP;
10832
10833 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10834 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10835 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10836
10837 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10838 len > IEEE80211_QOS_MAP_LEN_MAX)
10839 return -EINVAL;
10840
10841 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10842 if (!qos_map)
10843 return -ENOMEM;
10844
10845 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10846 if (num_des) {
10847 des_len = num_des *
10848 sizeof(struct cfg80211_dscp_exception);
10849 memcpy(qos_map->dscp_exception, pos, des_len);
10850 qos_map->num_des = num_des;
10851 for (des = 0; des < num_des; des++) {
10852 if (qos_map->dscp_exception[des].up > 7) {
10853 kfree(qos_map);
10854 return -EINVAL;
10855 }
10856 }
10857 pos += des_len;
10858 }
10859 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10860 }
10861
10862 wdev_lock(dev->ieee80211_ptr);
10863 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10864 if (!ret)
10865 ret = rdev_set_qos_map(rdev, dev, qos_map);
10866 wdev_unlock(dev->ieee80211_ptr);
10867
10868 kfree(qos_map);
10869 return ret;
10870}
10871
960d01ac
JB		 10872static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10873{
10874 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10875 struct net_device *dev = info->user_ptr[1];
10876 struct wireless_dev *wdev = dev->ieee80211_ptr;
10877 const u8 *peer;
10878 u8 tsid, up;
10879 u16 admitted_time = 0;
10880 int err;
10881
723e73ac 10882 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 10883 return -EOPNOTSUPP;
10884
10885 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10886 !info->attrs[NL80211_ATTR_USER_PRIO])
10887 return -EINVAL;
10888
10889 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10890 if (tsid >= IEEE80211_NUM_TIDS)
10891 return -EINVAL;
10892
10893 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10894 if (up >= IEEE80211_NUM_UPS)
10895 return -EINVAL;
10896
10897 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 10898 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 10899 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 10900 * need more attributes for that (e.g. BA session requirement);
10901 * change the WMM adminssion test above to allow both then
960d01ac
JB		 10902 */
10903 return -EINVAL;
10904 }
10905
10906 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10907
10908 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10909 admitted_time =
10910 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10911 if (!admitted_time)
10912 return -EINVAL;
10913 }
10914
10915 wdev_lock(wdev);
10916 switch (wdev->iftype) {
10917 case NL80211_IFTYPE_STATION:
10918 case NL80211_IFTYPE_P2P_CLIENT:
10919 if (wdev->current_bss)
10920 break;
10921 err = -ENOTCONN;
10922 goto out;
10923 default:
10924 err = -EOPNOTSUPP;
10925 goto out;
10926 }
10927
10928 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10929
10930 out:
10931 wdev_unlock(wdev);
10932 return err;
10933}
10934
10935static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10936{
10937 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10938 struct net_device *dev = info->user_ptr[1];
10939 struct wireless_dev *wdev = dev->ieee80211_ptr;
10940 const u8 *peer;
10941 u8 tsid;
10942 int err;
10943
10944 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10945 return -EINVAL;
10946
10947 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10948 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10949
10950 wdev_lock(wdev);
10951 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10952 wdev_unlock(wdev);
10953
10954 return err;
10955}
10956
1057d35e
AN		 10957static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10958 struct genl_info *info)
10959{
10960 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10961 struct net_device *dev = info->user_ptr[1];
10962 struct wireless_dev *wdev = dev->ieee80211_ptr;
10963 struct cfg80211_chan_def chandef = {};
10964 const u8 *addr;
10965 u8 oper_class;
10966 int err;
10967
10968 if (!rdev->ops->tdls_channel_switch ||
10969 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10970 return -EOPNOTSUPP;
10971
10972 switch (dev->ieee80211_ptr->iftype) {
10973 case NL80211_IFTYPE_STATION:
10974 case NL80211_IFTYPE_P2P_CLIENT:
10975 break;
10976 default:
10977 return -EOPNOTSUPP;
10978 }
10979
10980 if (!info->attrs[NL80211_ATTR_MAC] ||
10981 !info->attrs[NL80211_ATTR_OPER_CLASS])
10982 return -EINVAL;
10983
10984 err = nl80211_parse_chandef(rdev, info, &chandef);
10985 if (err)
10986 return err;
10987
10988 /*
10989 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10990 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10991 * specification is not defined for them.
10992 */
57fbcce3 10993 if (chandef.chan->band == NL80211_BAND_2GHZ &&
1057d35e
AN		 10994 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10995 chandef.width != NL80211_CHAN_WIDTH_20)
10996 return -EINVAL;
10997
10998 /* we will be active on the TDLS link */
923b352f
AN		 10999 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
11000 wdev->iftype))
1057d35e
AN		 11001 return -EINVAL;
11002
11003 /* don't allow switching to DFS channels */
11004 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
11005 return -EINVAL;
11006
11007 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11008 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
11009
11010 wdev_lock(wdev);
11011 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
11012 wdev_unlock(wdev);
11013
11014 return err;
11015}
11016
11017static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
11018 struct genl_info *info)
11019{
11020 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11021 struct net_device *dev = info->user_ptr[1];
11022 struct wireless_dev *wdev = dev->ieee80211_ptr;
11023 const u8 *addr;
11024
11025 if (!rdev->ops->tdls_channel_switch ||
11026 !rdev->ops->tdls_cancel_channel_switch ||
11027 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
11028 return -EOPNOTSUPP;
11029
11030 switch (dev->ieee80211_ptr->iftype) {
11031 case NL80211_IFTYPE_STATION:
11032 case NL80211_IFTYPE_P2P_CLIENT:
11033 break;
11034 default:
11035 return -EOPNOTSUPP;
11036 }
11037
11038 if (!info->attrs[NL80211_ATTR_MAC])
11039 return -EINVAL;
11040
11041 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11042
11043 wdev_lock(wdev);
11044 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
11045 wdev_unlock(wdev);
11046
11047 return 0;
11048}
11049
4c476991
JB		 11050#define NL80211_FLAG_NEED_WIPHY 0x01
11051#define NL80211_FLAG_NEED_NETDEV 0x02
11052#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 11053#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
11054#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
11055 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 11056#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 11057/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 11058#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
11059 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 11060#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 11061
f84f771d 11062static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 11063 struct genl_info *info)
11064{
11065 struct cfg80211_registered_device *rdev;
89a54e48 11066 struct wireless_dev *wdev;
4c476991 11067 struct net_device *dev;
4c476991
JB		 11068 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
11069
11070 if (rtnl)
11071 rtnl_lock();
11072
11073 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 11074 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 11075 if (IS_ERR(rdev)) {
11076 if (rtnl)
11077 rtnl_unlock();
11078 return PTR_ERR(rdev);
11079 }
11080 info->user_ptr[0] = rdev;
1bf614ef
JB		 11081 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
11082 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 11083 ASSERT_RTNL();
11084
89a54e48
JB		 11085 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
11086 info->attrs);
11087 if (IS_ERR(wdev)) {
4c476991
JB		 11088 if (rtnl)
11089 rtnl_unlock();
89a54e48 11090 return PTR_ERR(wdev);
4c476991 11091 }
89a54e48 11092
89a54e48 11093 dev = wdev->netdev;
f26cbf40 11094 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 11095
1bf614ef
JB		 11096 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
11097 if (!dev) {
1bf614ef
JB		 11098 if (rtnl)
11099 rtnl_unlock();
11100 return -EINVAL;
11101 }
11102
11103 info->user_ptr[1] = dev;
11104 } else {
11105 info->user_ptr[1] = wdev;
41265714 11106 }
1bf614ef
JB		 11107
11108 if (dev) {
11109 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
11110 !netif_running(dev)) {
1bf614ef
JB		 11111 if (rtnl)
11112 rtnl_unlock();
11113 return -ENETDOWN;
11114 }
11115
11116 dev_hold(dev);
98104fde
JB		 11117 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
11118 if (!wdev->p2p_started) {
98104fde
JB		 11119 if (rtnl)
11120 rtnl_unlock();
11121 return -ENETDOWN;
11122 }
41265714 11123 }
89a54e48 11124
4c476991 11125 info->user_ptr[0] = rdev;
4c476991
JB		 11126 }
11127
11128 return 0;
11129}
11130
f84f771d 11131static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 11132 struct genl_info *info)
11133{
1bf614ef
JB		 11134 if (info->user_ptr[1]) {
11135 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
11136 struct wireless_dev *wdev = info->user_ptr[1];
11137
11138 if (wdev->netdev)
11139 dev_put(wdev->netdev);
11140 } else {
11141 dev_put(info->user_ptr[1]);
11142 }
11143 }
5393b917 11144
4c476991
JB		 11145 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
11146 rtnl_unlock();
5393b917
JB		 11147
11148 /* If needed, clear the netlink message payload from the SKB
11149 * as it might contain key data that shouldn't stick around on
11150 * the heap after the SKB is freed. The netlink message header
11151 * is still needed for further processing, so leave it intact.
11152 */
11153 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
11154 struct nlmsghdr *nlh = nlmsg_hdr(skb);
11155
11156 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
11157 }
4c476991
JB		 11158}
11159
4534de83 11160static const struct genl_ops nl80211_ops[] = {
55682965
JB		 11161 {
11162 .cmd = NL80211_CMD_GET_WIPHY,
11163 .doit = nl80211_get_wiphy,
11164 .dumpit = nl80211_dump_wiphy,
86e8cf98 11165 .done = nl80211_dump_wiphy_done,
55682965
JB		 11166 .policy = nl80211_policy,
11167 /* can be retrieved by unprivileged users */
5fe231e8
JB		 11168 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11169 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11170 },
11171 {
11172 .cmd = NL80211_CMD_SET_WIPHY,
11173 .doit = nl80211_set_wiphy,
11174 .policy = nl80211_policy,
5617c6cd 11175 .flags = GENL_UNS_ADMIN_PERM,
4c476991 11176 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 11177 },
11178 {
11179 .cmd = NL80211_CMD_GET_INTERFACE,
11180 .doit = nl80211_get_interface,
11181 .dumpit = nl80211_dump_interface,
11182 .policy = nl80211_policy,
11183 /* can be retrieved by unprivileged users */
5fe231e8
JB		 11184 .internal_flags = NL80211_FLAG_NEED_WDEV |
11185 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11186 },
11187 {
11188 .cmd = NL80211_CMD_SET_INTERFACE,
11189 .doit = nl80211_set_interface,
11190 .policy = nl80211_policy,
5617c6cd 11191 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11192 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11193 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11194 },
11195 {
11196 .cmd = NL80211_CMD_NEW_INTERFACE,
11197 .doit = nl80211_new_interface,
11198 .policy = nl80211_policy,
5617c6cd 11199 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11200 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11201 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11202 },
11203 {
11204 .cmd = NL80211_CMD_DEL_INTERFACE,
11205 .doit = nl80211_del_interface,
11206 .policy = nl80211_policy,
5617c6cd 11207 .flags = GENL_UNS_ADMIN_PERM,
84efbb84 11208 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11209 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11210 },
11211 {
11212 .cmd = NL80211_CMD_GET_KEY,
11213 .doit = nl80211_get_key,
11214 .policy = nl80211_policy,
5617c6cd 11215 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11216 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11217 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11218 },
11219 {
11220 .cmd = NL80211_CMD_SET_KEY,
11221 .doit = nl80211_set_key,
11222 .policy = nl80211_policy,
5617c6cd 11223 .flags = GENL_UNS_ADMIN_PERM,
41265714 11224 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11225 NL80211_FLAG_NEED_RTNL |
11226 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 11227 },
11228 {
11229 .cmd = NL80211_CMD_NEW_KEY,
11230 .doit = nl80211_new_key,
11231 .policy = nl80211_policy,
5617c6cd 11232 .flags = GENL_UNS_ADMIN_PERM,
41265714 11233 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11234 NL80211_FLAG_NEED_RTNL |
11235 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 11236 },
11237 {
11238 .cmd = NL80211_CMD_DEL_KEY,
11239 .doit = nl80211_del_key,
11240 .policy = nl80211_policy,
5617c6cd 11241 .flags = GENL_UNS_ADMIN_PERM,
41265714 11242 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11243 NL80211_FLAG_NEED_RTNL,
55682965 11244 },
ed1b6cc7
JB		 11245 {
11246 .cmd = NL80211_CMD_SET_BEACON,
11247 .policy = nl80211_policy,
5617c6cd 11248 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11249 .doit = nl80211_set_beacon,
2b5f8b0b 11250 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11251 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11252 },
11253 {
8860020e 11254 .cmd = NL80211_CMD_START_AP,
ed1b6cc7 11255 .policy = nl80211_policy,
5617c6cd 11256 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11257 .doit = nl80211_start_ap,
2b5f8b0b 11258 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11259 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11260 },
11261 {
8860020e 11262 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7 11263 .policy = nl80211_policy,
5617c6cd 11264 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11265 .doit = nl80211_stop_ap,
2b5f8b0b 11266 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11267 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 11268 },
5727ef1b
JB		 11269 {
11270 .cmd = NL80211_CMD_GET_STATION,
11271 .doit = nl80211_get_station,
2ec600d6 11272 .dumpit = nl80211_dump_station,
5727ef1b 11273 .policy = nl80211_policy,
4c476991
JB		 11274 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11275 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11276 },
11277 {
11278 .cmd = NL80211_CMD_SET_STATION,
11279 .doit = nl80211_set_station,
11280 .policy = nl80211_policy,
5617c6cd 11281 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11282 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11283 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11284 },
11285 {
11286 .cmd = NL80211_CMD_NEW_STATION,
11287 .doit = nl80211_new_station,
11288 .policy = nl80211_policy,
5617c6cd 11289 .flags = GENL_UNS_ADMIN_PERM,
41265714 11290 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11291 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11292 },
11293 {
11294 .cmd = NL80211_CMD_DEL_STATION,
11295 .doit = nl80211_del_station,
11296 .policy = nl80211_policy,
5617c6cd 11297 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11298 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11299 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11300 },
11301 {
11302 .cmd = NL80211_CMD_GET_MPATH,
11303 .doit = nl80211_get_mpath,
11304 .dumpit = nl80211_dump_mpath,
11305 .policy = nl80211_policy,
5617c6cd 11306 .flags = GENL_UNS_ADMIN_PERM,
41265714 11307 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11308 NL80211_FLAG_NEED_RTNL,
2ec600d6 11309 },
66be7d2b
HR		 11310 {
11311 .cmd = NL80211_CMD_GET_MPP,
11312 .doit = nl80211_get_mpp,
11313 .dumpit = nl80211_dump_mpp,
11314 .policy = nl80211_policy,
5617c6cd 11315 .flags = GENL_UNS_ADMIN_PERM,
66be7d2b
HR		 11316 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11317 NL80211_FLAG_NEED_RTNL,
11318 },
2ec600d6
LCC		 11319 {
11320 .cmd = NL80211_CMD_SET_MPATH,
11321 .doit = nl80211_set_mpath,
11322 .policy = nl80211_policy,
5617c6cd 11323 .flags = GENL_UNS_ADMIN_PERM,
41265714 11324 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11325 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11326 },
11327 {
11328 .cmd = NL80211_CMD_NEW_MPATH,
11329 .doit = nl80211_new_mpath,
11330 .policy = nl80211_policy,
5617c6cd 11331 .flags = GENL_UNS_ADMIN_PERM,
41265714 11332 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11333 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11334 },
11335 {
11336 .cmd = NL80211_CMD_DEL_MPATH,
11337 .doit = nl80211_del_mpath,
11338 .policy = nl80211_policy,
5617c6cd 11339 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11340 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11341 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 11342 },
11343 {
11344 .cmd = NL80211_CMD_SET_BSS,
11345 .doit = nl80211_set_bss,
11346 .policy = nl80211_policy,
5617c6cd 11347 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11348 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11349 NL80211_FLAG_NEED_RTNL,
b2e1b302 11350 },
f130347c
LR		 11351 {
11352 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 11353 .doit = nl80211_get_reg_do,
11354 .dumpit = nl80211_get_reg_dump,
f130347c 11355 .policy = nl80211_policy,
5fe231e8 11356 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 11357 /* can be retrieved by unprivileged users */
11358 },
b6863036 11359#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 11360 {
11361 .cmd = NL80211_CMD_SET_REG,
11362 .doit = nl80211_set_reg,
11363 .policy = nl80211_policy,
11364 .flags = GENL_ADMIN_PERM,
5fe231e8 11365 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 11366 },
b6863036 11367#endif
b2e1b302
LR		 11368 {
11369 .cmd = NL80211_CMD_REQ_SET_REG,
11370 .doit = nl80211_req_set_reg,
11371 .policy = nl80211_policy,
93da9cc1 11372 .flags = GENL_ADMIN_PERM,
11373 },
11374 {
24bdd9f4
JC		 11375 .cmd = NL80211_CMD_GET_MESH_CONFIG,
11376 .doit = nl80211_get_mesh_config,
93da9cc1 11377 .policy = nl80211_policy,
11378 /* can be retrieved by unprivileged users */
2b5f8b0b 11379 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11380 NL80211_FLAG_NEED_RTNL,
93da9cc1 11381 },
11382 {
24bdd9f4
JC		 11383 .cmd = NL80211_CMD_SET_MESH_CONFIG,
11384 .doit = nl80211_update_mesh_config,
93da9cc1 11385 .policy = nl80211_policy,
5617c6cd 11386 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c 11387 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11388 NL80211_FLAG_NEED_RTNL,
9aed3cc1 11389 },
2a519311
JB		 11390 {
11391 .cmd = NL80211_CMD_TRIGGER_SCAN,
11392 .doit = nl80211_trigger_scan,
11393 .policy = nl80211_policy,
5617c6cd 11394 .flags = GENL_UNS_ADMIN_PERM,
fd014284 11395 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11396 NL80211_FLAG_NEED_RTNL,
2a519311 11397 },
91d3ab46
VK		 11398 {
11399 .cmd = NL80211_CMD_ABORT_SCAN,
11400 .doit = nl80211_abort_scan,
11401 .policy = nl80211_policy,
5617c6cd 11402 .flags = GENL_UNS_ADMIN_PERM,
91d3ab46
VK		 11403 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11404 NL80211_FLAG_NEED_RTNL,
11405 },
2a519311
JB		 11406 {
11407 .cmd = NL80211_CMD_GET_SCAN,
11408 .policy = nl80211_policy,
11409 .dumpit = nl80211_dump_scan,
11410 },
807f8a8c
LC		 11411 {
11412 .cmd = NL80211_CMD_START_SCHED_SCAN,
11413 .doit = nl80211_start_sched_scan,
11414 .policy = nl80211_policy,
5617c6cd 11415 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 11416 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11417 NL80211_FLAG_NEED_RTNL,
11418 },
11419 {
11420 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
11421 .doit = nl80211_stop_sched_scan,
11422 .policy = nl80211_policy,
5617c6cd 11423 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 11424 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11425 NL80211_FLAG_NEED_RTNL,
11426 },
636a5d36
JM		 11427 {
11428 .cmd = NL80211_CMD_AUTHENTICATE,
11429 .doit = nl80211_authenticate,
11430 .policy = nl80211_policy,
5617c6cd 11431 .flags = GENL_UNS_ADMIN_PERM,
41265714 11432 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11433 NL80211_FLAG_NEED_RTNL |
11434 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 11435 },
11436 {
11437 .cmd = NL80211_CMD_ASSOCIATE,
11438 .doit = nl80211_associate,
11439 .policy = nl80211_policy,
5617c6cd 11440 .flags = GENL_UNS_ADMIN_PERM,
41265714 11441 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11442 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11443 },
11444 {
11445 .cmd = NL80211_CMD_DEAUTHENTICATE,
11446 .doit = nl80211_deauthenticate,
11447 .policy = nl80211_policy,
5617c6cd 11448 .flags = GENL_UNS_ADMIN_PERM,
41265714 11449 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11450 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11451 },
11452 {
11453 .cmd = NL80211_CMD_DISASSOCIATE,
11454 .doit = nl80211_disassociate,
11455 .policy = nl80211_policy,
5617c6cd 11456 .flags = GENL_UNS_ADMIN_PERM,
41265714 11457 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11458 NL80211_FLAG_NEED_RTNL,
636a5d36 11459 },
04a773ad
JB		 11460 {
11461 .cmd = NL80211_CMD_JOIN_IBSS,
11462 .doit = nl80211_join_ibss,
11463 .policy = nl80211_policy,
5617c6cd 11464 .flags = GENL_UNS_ADMIN_PERM,
41265714 11465 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11466 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 11467 },
11468 {
11469 .cmd = NL80211_CMD_LEAVE_IBSS,
11470 .doit = nl80211_leave_ibss,
11471 .policy = nl80211_policy,
5617c6cd 11472 .flags = GENL_UNS_ADMIN_PERM,
41265714 11473 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11474 NL80211_FLAG_NEED_RTNL,
04a773ad 11475 },
aff89a9b
JB		 11476#ifdef CONFIG_NL80211_TESTMODE
11477 {
11478 .cmd = NL80211_CMD_TESTMODE,
11479 .doit = nl80211_testmode_do,
71063f0e 11480 .dumpit = nl80211_testmode_dump,
aff89a9b 11481 .policy = nl80211_policy,
5617c6cd 11482 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11483 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11484 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 11485 },
11486#endif
b23aa676
SO		 11487 {
11488 .cmd = NL80211_CMD_CONNECT,
11489 .doit = nl80211_connect,
11490 .policy = nl80211_policy,
5617c6cd 11491 .flags = GENL_UNS_ADMIN_PERM,
41265714 11492 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11493 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 11494 },
11495 {
11496 .cmd = NL80211_CMD_DISCONNECT,
11497 .doit = nl80211_disconnect,
11498 .policy = nl80211_policy,
5617c6cd 11499 .flags = GENL_UNS_ADMIN_PERM,
41265714 11500 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11501 NL80211_FLAG_NEED_RTNL,
b23aa676 11502 },
463d0183
JB		 11503 {
11504 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11505 .doit = nl80211_wiphy_netns,
11506 .policy = nl80211_policy,
5617c6cd 11507 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11508 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11509 NL80211_FLAG_NEED_RTNL,
463d0183 11510 },
61fa713c
HS		 11511 {
11512 .cmd = NL80211_CMD_GET_SURVEY,
11513 .policy = nl80211_policy,
11514 .dumpit = nl80211_dump_survey,
11515 },
67fbb16b
SO		 11516 {
11517 .cmd = NL80211_CMD_SET_PMKSA,
11518 .doit = nl80211_setdel_pmksa,
11519 .policy = nl80211_policy,
5617c6cd 11520 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11521 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11522 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11523 },
11524 {
11525 .cmd = NL80211_CMD_DEL_PMKSA,
11526 .doit = nl80211_setdel_pmksa,
11527 .policy = nl80211_policy,
5617c6cd 11528 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11529 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11530 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11531 },
11532 {
11533 .cmd = NL80211_CMD_FLUSH_PMKSA,
11534 .doit = nl80211_flush_pmksa,
11535 .policy = nl80211_policy,
5617c6cd 11536 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11537 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11538 NL80211_FLAG_NEED_RTNL,
67fbb16b 11539 },
9588bbd5
JM		 11540 {
11541 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11542 .doit = nl80211_remain_on_channel,
11543 .policy = nl80211_policy,
5617c6cd 11544 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11545 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11546 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 11547 },
11548 {
11549 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11550 .doit = nl80211_cancel_remain_on_channel,
11551 .policy = nl80211_policy,
5617c6cd 11552 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11553 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11554 NL80211_FLAG_NEED_RTNL,
9588bbd5 11555 },
13ae75b1
JM		 11556 {
11557 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11558 .doit = nl80211_set_tx_bitrate_mask,
11559 .policy = nl80211_policy,
5617c6cd 11560 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11561 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11562 NL80211_FLAG_NEED_RTNL,
13ae75b1 11563 },
026331c4 11564 {
2e161f78
JB		 11565 .cmd = NL80211_CMD_REGISTER_FRAME,
11566 .doit = nl80211_register_mgmt,
026331c4 11567 .policy = nl80211_policy,
5617c6cd 11568 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11569 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11570 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 11571 },
11572 {
2e161f78
JB		 11573 .cmd = NL80211_CMD_FRAME,
11574 .doit = nl80211_tx_mgmt,
026331c4 11575 .policy = nl80211_policy,
5617c6cd 11576 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11577 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 11578 NL80211_FLAG_NEED_RTNL,
11579 },
11580 {
11581 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11582 .doit = nl80211_tx_mgmt_cancel_wait,
11583 .policy = nl80211_policy,
5617c6cd 11584 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11585 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11586 NL80211_FLAG_NEED_RTNL,
026331c4 11587 },
ffb9eb3d
KV		 11588 {
11589 .cmd = NL80211_CMD_SET_POWER_SAVE,
11590 .doit = nl80211_set_power_save,
11591 .policy = nl80211_policy,
5617c6cd 11592 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11593 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11594 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 11595 },
11596 {
11597 .cmd = NL80211_CMD_GET_POWER_SAVE,
11598 .doit = nl80211_get_power_save,
11599 .policy = nl80211_policy,
11600 /* can be retrieved by unprivileged users */
4c476991
JB		 11601 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11602 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 11603 },
d6dc1a38
JO		 11604 {
11605 .cmd = NL80211_CMD_SET_CQM,
11606 .doit = nl80211_set_cqm,
11607 .policy = nl80211_policy,
5617c6cd 11608 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11609 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11610 NL80211_FLAG_NEED_RTNL,
d6dc1a38 11611 },
f444de05
JB		 11612 {
11613 .cmd = NL80211_CMD_SET_CHANNEL,
11614 .doit = nl80211_set_channel,
11615 .policy = nl80211_policy,
5617c6cd 11616 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11617 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11618 NL80211_FLAG_NEED_RTNL,
f444de05 11619 },
e8347eba
BJ		 11620 {
11621 .cmd = NL80211_CMD_SET_WDS_PEER,
11622 .doit = nl80211_set_wds_peer,
11623 .policy = nl80211_policy,
5617c6cd 11624 .flags = GENL_UNS_ADMIN_PERM,
43b19952
JB		 11625 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11626 NL80211_FLAG_NEED_RTNL,
e8347eba 11627 },
29cbe68c
JB		 11628 {
11629 .cmd = NL80211_CMD_JOIN_MESH,
11630 .doit = nl80211_join_mesh,
11631 .policy = nl80211_policy,
5617c6cd 11632 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 11633 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11634 NL80211_FLAG_NEED_RTNL,
11635 },
11636 {
11637 .cmd = NL80211_CMD_LEAVE_MESH,
11638 .doit = nl80211_leave_mesh,
11639 .policy = nl80211_policy,
5617c6cd 11640 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 11641 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11642 NL80211_FLAG_NEED_RTNL,
11643 },
6e0bd6c3
RL		 11644 {
11645 .cmd = NL80211_CMD_JOIN_OCB,
11646 .doit = nl80211_join_ocb,
11647 .policy = nl80211_policy,
5617c6cd 11648 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 11649 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11650 NL80211_FLAG_NEED_RTNL,
11651 },
11652 {
11653 .cmd = NL80211_CMD_LEAVE_OCB,
11654 .doit = nl80211_leave_ocb,
11655 .policy = nl80211_policy,
5617c6cd 11656 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 11657 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11658 NL80211_FLAG_NEED_RTNL,
11659 },
dfb89c56 11660#ifdef CONFIG_PM
ff1b6e69
JB		 11661 {
11662 .cmd = NL80211_CMD_GET_WOWLAN,
11663 .doit = nl80211_get_wowlan,
11664 .policy = nl80211_policy,
11665 /* can be retrieved by unprivileged users */
11666 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11667 NL80211_FLAG_NEED_RTNL,
11668 },
11669 {
11670 .cmd = NL80211_CMD_SET_WOWLAN,
11671 .doit = nl80211_set_wowlan,
11672 .policy = nl80211_policy,
5617c6cd 11673 .flags = GENL_UNS_ADMIN_PERM,
ff1b6e69
JB		 11674 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11675 NL80211_FLAG_NEED_RTNL,
11676 },
dfb89c56 11677#endif
e5497d76
JB		 11678 {
11679 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11680 .doit = nl80211_set_rekey_data,
11681 .policy = nl80211_policy,
5617c6cd 11682 .flags = GENL_UNS_ADMIN_PERM,
e5497d76 11683 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11684 NL80211_FLAG_NEED_RTNL |
11685 NL80211_FLAG_CLEAR_SKB,
e5497d76 11686 },
109086ce
AN		 11687 {
11688 .cmd = NL80211_CMD_TDLS_MGMT,
11689 .doit = nl80211_tdls_mgmt,
11690 .policy = nl80211_policy,
5617c6cd 11691 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 11692 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11693 NL80211_FLAG_NEED_RTNL,
11694 },
11695 {
11696 .cmd = NL80211_CMD_TDLS_OPER,
11697 .doit = nl80211_tdls_oper,
11698 .policy = nl80211_policy,
5617c6cd 11699 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 11700 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11701 NL80211_FLAG_NEED_RTNL,
11702 },
28946da7
JB		 11703 {
11704 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11705 .doit = nl80211_register_unexpected_frame,
11706 .policy = nl80211_policy,
5617c6cd 11707 .flags = GENL_UNS_ADMIN_PERM,
28946da7
JB		 11708 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11709 NL80211_FLAG_NEED_RTNL,
11710 },
7f6cf311
JB		 11711 {
11712 .cmd = NL80211_CMD_PROBE_CLIENT,
11713 .doit = nl80211_probe_client,
11714 .policy = nl80211_policy,
5617c6cd 11715 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11716 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 11717 NL80211_FLAG_NEED_RTNL,
11718 },
5e760230
JB		 11719 {
11720 .cmd = NL80211_CMD_REGISTER_BEACONS,
11721 .doit = nl80211_register_beacons,
11722 .policy = nl80211_policy,
5617c6cd 11723 .flags = GENL_UNS_ADMIN_PERM,
5e760230
JB		 11724 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11725 NL80211_FLAG_NEED_RTNL,
11726 },
1d9d9213
SW		 11727 {
11728 .cmd = NL80211_CMD_SET_NOACK_MAP,
11729 .doit = nl80211_set_noack_map,
11730 .policy = nl80211_policy,
5617c6cd 11731 .flags = GENL_UNS_ADMIN_PERM,
1d9d9213
SW		 11732 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11733 NL80211_FLAG_NEED_RTNL,
11734 },
98104fde
JB		 11735 {
11736 .cmd = NL80211_CMD_START_P2P_DEVICE,
11737 .doit = nl80211_start_p2p_device,
11738 .policy = nl80211_policy,
5617c6cd 11739 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 11740 .internal_flags = NL80211_FLAG_NEED_WDEV |
11741 NL80211_FLAG_NEED_RTNL,
11742 },
11743 {
11744 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11745 .doit = nl80211_stop_p2p_device,
11746 .policy = nl80211_policy,
5617c6cd 11747 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 11748 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11749 NL80211_FLAG_NEED_RTNL,
11750 },
f4e583c8
AQ		 11751 {
11752 .cmd = NL80211_CMD_SET_MCAST_RATE,
11753 .doit = nl80211_set_mcast_rate,
77765eaf 11754 .policy = nl80211_policy,
5617c6cd 11755 .flags = GENL_UNS_ADMIN_PERM,
77765eaf
VT		 11756 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11757 NL80211_FLAG_NEED_RTNL,
11758 },
11759 {
11760 .cmd = NL80211_CMD_SET_MAC_ACL,
11761 .doit = nl80211_set_mac_acl,
f4e583c8 11762 .policy = nl80211_policy,
5617c6cd 11763 .flags = GENL_UNS_ADMIN_PERM,
f4e583c8
AQ		 11764 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11765 NL80211_FLAG_NEED_RTNL,
11766 },
04f39047
SW		 11767 {
11768 .cmd = NL80211_CMD_RADAR_DETECT,
11769 .doit = nl80211_start_radar_detection,
11770 .policy = nl80211_policy,
5617c6cd 11771 .flags = GENL_UNS_ADMIN_PERM,
04f39047
SW		 11772 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11773 NL80211_FLAG_NEED_RTNL,
11774 },
3713b4e3
JB		 11775 {
11776 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11777 .doit = nl80211_get_protocol_features,
11778 .policy = nl80211_policy,
11779 },
355199e0
JM		 11780 {
11781 .cmd = NL80211_CMD_UPDATE_FT_IES,
11782 .doit = nl80211_update_ft_ies,
11783 .policy = nl80211_policy,
5617c6cd 11784 .flags = GENL_UNS_ADMIN_PERM,
355199e0
JM		 11785 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11786 NL80211_FLAG_NEED_RTNL,
11787 },
5de17984
AS		 11788 {
11789 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11790 .doit = nl80211_crit_protocol_start,
11791 .policy = nl80211_policy,
5617c6cd 11792 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 11793 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11794 NL80211_FLAG_NEED_RTNL,
11795 },
11796 {
11797 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11798 .doit = nl80211_crit_protocol_stop,
11799 .policy = nl80211_policy,
5617c6cd 11800 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 11801 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11802 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 11803 },
11804 {
11805 .cmd = NL80211_CMD_GET_COALESCE,
11806 .doit = nl80211_get_coalesce,
11807 .policy = nl80211_policy,
11808 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11809 NL80211_FLAG_NEED_RTNL,
11810 },
11811 {
11812 .cmd = NL80211_CMD_SET_COALESCE,
11813 .doit = nl80211_set_coalesce,
11814 .policy = nl80211_policy,
5617c6cd 11815 .flags = GENL_UNS_ADMIN_PERM,
be29b99a
AK		 11816 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11817 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 11818 },
11819 {
11820 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11821 .doit = nl80211_channel_switch,
11822 .policy = nl80211_policy,
5617c6cd 11823 .flags = GENL_UNS_ADMIN_PERM,
16ef1fe2
SW		 11824 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11825 NL80211_FLAG_NEED_RTNL,
11826 },
ad7e718c
JB		 11827 {
11828 .cmd = NL80211_CMD_VENDOR,
11829 .doit = nl80211_vendor_cmd,
7bdbe400 11830 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c 11831 .policy = nl80211_policy,
5617c6cd 11832 .flags = GENL_UNS_ADMIN_PERM,
ad7e718c
JB		 11833 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11834 NL80211_FLAG_NEED_RTNL,
11835 },
fa9ffc74
KP		 11836 {
11837 .cmd = NL80211_CMD_SET_QOS_MAP,
11838 .doit = nl80211_set_qos_map,
11839 .policy = nl80211_policy,
5617c6cd 11840 .flags = GENL_UNS_ADMIN_PERM,
fa9ffc74
KP		 11841 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11842 NL80211_FLAG_NEED_RTNL,
11843 },
960d01ac
JB		 11844 {
11845 .cmd = NL80211_CMD_ADD_TX_TS,
11846 .doit = nl80211_add_tx_ts,
11847 .policy = nl80211_policy,
5617c6cd 11848 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 11849 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11850 NL80211_FLAG_NEED_RTNL,
11851 },
11852 {
11853 .cmd = NL80211_CMD_DEL_TX_TS,
11854 .doit = nl80211_del_tx_ts,
11855 .policy = nl80211_policy,
5617c6cd 11856 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 11857 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11858 NL80211_FLAG_NEED_RTNL,
11859 },
1057d35e
AN		 11860 {
11861 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11862 .doit = nl80211_tdls_channel_switch,
11863 .policy = nl80211_policy,
5617c6cd 11864 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 11865 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11866 NL80211_FLAG_NEED_RTNL,
11867 },
11868 {
11869 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11870 .doit = nl80211_tdls_cancel_channel_switch,
11871 .policy = nl80211_policy,
5617c6cd 11872 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 11873 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11874 NL80211_FLAG_NEED_RTNL,
11875 },
55682965 11876};
9588bbd5 11877
55682965
JB		 11878/* notification functions */
11879
3bb20556
JB		 11880void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11881 enum nl80211_commands cmd)
55682965
JB		 11882{
11883 struct sk_buff *msg;
86e8cf98 11884 struct nl80211_dump_wiphy_state state = {};
55682965 11885
3bb20556
JB		 11886 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11887 cmd != NL80211_CMD_DEL_WIPHY);
11888
fd2120ca 11889 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 11890 if (!msg)
11891 return;
11892
3bb20556 11893 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 11894 nlmsg_free(msg);
11895 return;
11896 }
11897
68eb5503 11898 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11899 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 11900}
11901
896ff063
DK		 11902void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
11903 struct wireless_dev *wdev,
11904 enum nl80211_commands cmd)
11905{
11906 struct sk_buff *msg;
11907
11908 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
11909 cmd != NL80211_CMD_DEL_INTERFACE);
11910
11911 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11912 if (!msg)
11913 return;
11914
11915 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
11916 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
11917 nlmsg_free(msg);
11918 return;
11919 }
11920
11921 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11922 NL80211_MCGRP_CONFIG, GFP_KERNEL);
11923}
11924
362a415d
JB		 11925static int nl80211_add_scan_req(struct sk_buff *msg,
11926 struct cfg80211_registered_device *rdev)
11927{
11928 struct cfg80211_scan_request *req = rdev->scan_req;
11929 struct nlattr *nest;
11930 int i;
11931
11932 if (WARN_ON(!req))
11933 return 0;
11934
11935 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11936 if (!nest)
11937 goto nla_put_failure;
9360ffd1
DM		 11938 for (i = 0; i < req->n_ssids; i++) {
11939 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11940 goto nla_put_failure;
11941 }
362a415d
JB		 11942 nla_nest_end(msg, nest);
11943
11944 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11945 if (!nest)
11946 goto nla_put_failure;
9360ffd1
DM		 11947 for (i = 0; i < req->n_channels; i++) {
11948 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11949 goto nla_put_failure;
11950 }
362a415d
JB		 11951 nla_nest_end(msg, nest);
11952
9360ffd1
DM		 11953 if (req->ie &&
11954 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11955 goto nla_put_failure;
362a415d 11956
ae917c9f
JB		 11957 if (req->flags &&
11958 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11959 goto nla_put_failure;
ed473771 11960
1d76250b
AS		 11961 if (req->info.scan_start_tsf &&
11962 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
11963 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
11964 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
11965 req->info.tsf_bssid)))
11966 goto nla_put_failure;
11967
362a415d
JB		 11968 return 0;
11969 nla_put_failure:
11970 return -ENOBUFS;
11971}
11972
a538e2d5
JB		 11973static int nl80211_send_scan_msg(struct sk_buff *msg,
11974 struct cfg80211_registered_device *rdev,
fd014284 11975 struct wireless_dev *wdev,
15e47304 11976 u32 portid, u32 seq, int flags,
a538e2d5 11977 u32 cmd)
2a519311
JB		 11978{
11979 void *hdr;
11980
15e47304 11981 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11982 if (!hdr)
11983 return -1;
11984
9360ffd1 11985 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11986 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11987 wdev->netdev->ifindex)) ||
2dad624e
ND		 11988 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11989 NL80211_ATTR_PAD))
9360ffd1 11990 goto nla_put_failure;
2a519311 11991
362a415d
JB		 11992 /* ignore errors and send incomplete event anyway */
11993 nl80211_add_scan_req(msg, rdev);
2a519311 11994
053c095a
JB		 11995 genlmsg_end(msg, hdr);
11996 return 0;
2a519311
JB		 11997
11998 nla_put_failure:
11999 genlmsg_cancel(msg, hdr);
12000 return -EMSGSIZE;
12001}
12002
807f8a8c
LC		 12003static int
12004nl80211_send_sched_scan_msg(struct sk_buff *msg,
12005 struct cfg80211_registered_device *rdev,
12006 struct net_device *netdev,
15e47304 12007 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 12008{
12009 void *hdr;
12010
15e47304 12011 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 12012 if (!hdr)
12013 return -1;
12014
9360ffd1
DM		 12015 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12016 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12017 goto nla_put_failure;
807f8a8c 12018
053c095a
JB		 12019 genlmsg_end(msg, hdr);
12020 return 0;
807f8a8c
LC		 12021
12022 nla_put_failure:
12023 genlmsg_cancel(msg, hdr);
12024 return -EMSGSIZE;
12025}
12026
a538e2d5 12027void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 12028 struct wireless_dev *wdev)
a538e2d5
JB		 12029{
12030 struct sk_buff *msg;
12031
58050fce 12032 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 12033 if (!msg)
12034 return;
12035
fd014284 12036 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 12037 NL80211_CMD_TRIGGER_SCAN) < 0) {
12038 nlmsg_free(msg);
12039 return;
12040 }
12041
68eb5503 12042 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12043 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 12044}
12045
f9d15d16
JB		 12046struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
12047 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 12048{
12049 struct sk_buff *msg;
12050
fd2120ca 12051 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 12052 if (!msg)
f9d15d16 12053 return NULL;
2a519311 12054
fd014284 12055 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 12056 aborted ? NL80211_CMD_SCAN_ABORTED :
12057 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 12058 nlmsg_free(msg);
f9d15d16 12059 return NULL;
2a519311
JB		 12060 }
12061
f9d15d16 12062 return msg;
2a519311
JB		 12063}
12064
f9d15d16
JB		 12065void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
12066 struct sk_buff *msg)
2a519311 12067{
2a519311
JB		 12068 if (!msg)
12069 return;
12070
68eb5503 12071 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12072 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 12073}
12074
807f8a8c
LC		 12075void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
12076 struct net_device *netdev)
12077{
12078 struct sk_buff *msg;
12079
12080 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12081 if (!msg)
12082 return;
12083
12084 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
12085 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
12086 nlmsg_free(msg);
12087 return;
12088 }
12089
68eb5503 12090 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12091 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 12092}
12093
12094void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
12095 struct net_device *netdev, u32 cmd)
12096{
12097 struct sk_buff *msg;
12098
58050fce 12099 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 12100 if (!msg)
12101 return;
12102
12103 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
12104 nlmsg_free(msg);
12105 return;
12106 }
12107
68eb5503 12108 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12109 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 12110}
12111
b0d7aa59
JD		 12112static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
12113 struct regulatory_request *request)
73d54c9e 12114{
73d54c9e 12115 /* Userspace can always count this one always being set */
9360ffd1
DM		 12116 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
12117 goto nla_put_failure;
12118
12119 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
12120 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12121 NL80211_REGDOM_TYPE_WORLD))
12122 goto nla_put_failure;
12123 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
12124 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12125 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
12126 goto nla_put_failure;
12127 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
12128 request->intersect) {
12129 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12130 NL80211_REGDOM_TYPE_INTERSECTION))
12131 goto nla_put_failure;
12132 } else {
12133 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12134 NL80211_REGDOM_TYPE_COUNTRY) ||
12135 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
12136 request->alpha2))
12137 goto nla_put_failure;
12138 }
12139
ad30ca2c
AN		 12140 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
12141 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
12142
12143 if (wiphy &&
12144 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
12145 goto nla_put_failure;
1bdd716c
AN		 12146
12147 if (wiphy &&
12148 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
12149 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
12150 goto nla_put_failure;
ad30ca2c 12151 }
73d54c9e 12152
b0d7aa59
JD		 12153 return true;
12154
12155nla_put_failure:
12156 return false;
12157}
12158
12159/*
12160 * This can happen on global regulatory changes or device specific settings
12161 * based on custom regulatory domains.
12162 */
12163void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
12164 struct regulatory_request *request)
12165{
12166 struct sk_buff *msg;
12167 void *hdr;
12168
12169 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12170 if (!msg)
12171 return;
12172
12173 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
12174 if (!hdr) {
12175 nlmsg_free(msg);
12176 return;
12177 }
12178
12179 if (nl80211_reg_change_event_fill(msg, request) == false)
12180 goto nla_put_failure;
12181
3b7b72ee 12182 genlmsg_end(msg, hdr);
73d54c9e 12183
bc43b28c 12184 rcu_read_lock();
68eb5503 12185 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12186 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 12187 rcu_read_unlock();
73d54c9e
LR		 12188
12189 return;
12190
12191nla_put_failure:
12192 genlmsg_cancel(msg, hdr);
12193 nlmsg_free(msg);
12194}
12195
6039f6d2
JM		 12196static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
12197 struct net_device *netdev,
12198 const u8 *buf, size_t len,
b0b6aa2c
EP		 12199 enum nl80211_commands cmd, gfp_t gfp,
12200 int uapsd_queues)
6039f6d2
JM		 12201{
12202 struct sk_buff *msg;
12203 void *hdr;
12204
e6d6e342 12205 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 12206 if (!msg)
12207 return;
12208
12209 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12210 if (!hdr) {
12211 nlmsg_free(msg);
12212 return;
12213 }
12214
9360ffd1
DM		 12215 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12216 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12217 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
12218 goto nla_put_failure;
6039f6d2 12219
b0b6aa2c
EP		 12220 if (uapsd_queues >= 0) {
12221 struct nlattr *nla_wmm =
12222 nla_nest_start(msg, NL80211_ATTR_STA_WME);
12223 if (!nla_wmm)
12224 goto nla_put_failure;
12225
12226 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
12227 uapsd_queues))
12228 goto nla_put_failure;
12229
12230 nla_nest_end(msg, nla_wmm);
12231 }
12232
3b7b72ee 12233 genlmsg_end(msg, hdr);
6039f6d2 12234
68eb5503 12235 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12236 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 12237 return;
12238
12239 nla_put_failure:
12240 genlmsg_cancel(msg, hdr);
12241 nlmsg_free(msg);
12242}
12243
12244void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12245 struct net_device *netdev, const u8 *buf,
12246 size_t len, gfp_t gfp)
6039f6d2
JM		 12247{
12248 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12249 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 12250}
12251
12252void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
12253 struct net_device *netdev, const u8 *buf,
b0b6aa2c 12254 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 12255{
e6d6e342 12256 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12257 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 12258}
12259
53b46b84 12260void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12261 struct net_device *netdev, const u8 *buf,
12262 size_t len, gfp_t gfp)
6039f6d2
JM		 12263{
12264 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12265 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 12266}
12267
53b46b84
JM		 12268void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
12269 struct net_device *netdev, const u8 *buf,
e6d6e342 12270 size_t len, gfp_t gfp)
6039f6d2
JM		 12271{
12272 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12273 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 12274}
12275
6ff57cf8
JB		 12276void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
12277 size_t len)
cf4e594e 12278{
947add36
JB		 12279 struct wireless_dev *wdev = dev->ieee80211_ptr;
12280 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12281 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 12282 const struct ieee80211_mgmt *mgmt = (void *)buf;
12283 u32 cmd;
947add36 12284
6ff57cf8
JB		 12285 if (WARN_ON(len < 2))
12286 return;
cf4e594e 12287
6ff57cf8
JB		 12288 if (ieee80211_is_deauth(mgmt->frame_control))
12289 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
12290 else
12291 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 12292
6ff57cf8 12293 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 12294 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 12295}
6ff57cf8 12296EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 12297
1b06bb40
LR		 12298static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
12299 struct net_device *netdev, int cmd,
e6d6e342 12300 const u8 *addr, gfp_t gfp)
1965c853
JM		 12301{
12302 struct sk_buff *msg;
12303 void *hdr;
12304
e6d6e342 12305 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 12306 if (!msg)
12307 return;
12308
12309 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12310 if (!hdr) {
12311 nlmsg_free(msg);
12312 return;
12313 }
12314
9360ffd1
DM		 12315 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12316 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12317 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
12318 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12319 goto nla_put_failure;
1965c853 12320
3b7b72ee 12321 genlmsg_end(msg, hdr);
1965c853 12322
68eb5503 12323 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12324 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 12325 return;
12326
12327 nla_put_failure:
12328 genlmsg_cancel(msg, hdr);
12329 nlmsg_free(msg);
12330}
12331
12332void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12333 struct net_device *netdev, const u8 *addr,
12334 gfp_t gfp)
1965c853
JM		 12335{
12336 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 12337 addr, gfp);
1965c853
JM		 12338}
12339
12340void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12341 struct net_device *netdev, const u8 *addr,
12342 gfp_t gfp)
1965c853 12343{
e6d6e342
JB		 12344 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
12345 addr, gfp);
1965c853
JM		 12346}
12347
b23aa676
SO		 12348void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
12349 struct net_device *netdev, const u8 *bssid,
12350 const u8 *req_ie, size_t req_ie_len,
12351 const u8 *resp_ie, size_t resp_ie_len,
bf1ecd21 12352 int status, gfp_t gfp)
b23aa676
SO		 12353{
12354 struct sk_buff *msg;
12355 void *hdr;
12356
58050fce 12357 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12358 if (!msg)
12359 return;
12360
12361 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
12362 if (!hdr) {
12363 nlmsg_free(msg);
12364 return;
12365 }
12366
9360ffd1
DM		 12367 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12368 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12369 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
bf1ecd21
JM		 12370 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
12371 status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
12372 status) ||
12373 (status < 0 && nla_put_flag(msg, NL80211_ATTR_TIMED_OUT)) ||
9360ffd1
DM		 12374 (req_ie &&
12375 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12376 (resp_ie &&
12377 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12378 goto nla_put_failure;
b23aa676 12379
3b7b72ee 12380 genlmsg_end(msg, hdr);
b23aa676 12381
68eb5503 12382 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12383 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12384 return;
12385
12386 nla_put_failure:
12387 genlmsg_cancel(msg, hdr);
12388 nlmsg_free(msg);
b23aa676
SO		 12389}
12390
12391void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
12392 struct net_device *netdev, const u8 *bssid,
12393 const u8 *req_ie, size_t req_ie_len,
12394 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
12395{
12396 struct sk_buff *msg;
12397 void *hdr;
12398
58050fce 12399 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12400 if (!msg)
12401 return;
12402
12403 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
12404 if (!hdr) {
12405 nlmsg_free(msg);
12406 return;
12407 }
12408
9360ffd1
DM		 12409 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12410 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12411 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
12412 (req_ie &&
12413 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12414 (resp_ie &&
12415 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12416 goto nla_put_failure;
b23aa676 12417
3b7b72ee 12418 genlmsg_end(msg, hdr);
b23aa676 12419
68eb5503 12420 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12421 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12422 return;
12423
12424 nla_put_failure:
12425 genlmsg_cancel(msg, hdr);
12426 nlmsg_free(msg);
b23aa676
SO		 12427}
12428
12429void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
12430 struct net_device *netdev, u16 reason,
667503dd 12431 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 12432{
12433 struct sk_buff *msg;
12434 void *hdr;
12435
58050fce 12436 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 12437 if (!msg)
12438 return;
12439
12440 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
12441 if (!hdr) {
12442 nlmsg_free(msg);
12443 return;
12444 }
12445
9360ffd1
DM		 12446 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12447 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12448 (from_ap && reason &&
12449 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
12450 (from_ap &&
12451 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
12452 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
12453 goto nla_put_failure;
b23aa676 12454
3b7b72ee 12455 genlmsg_end(msg, hdr);
b23aa676 12456
68eb5503 12457 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12458 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 12459 return;
12460
12461 nla_put_failure:
12462 genlmsg_cancel(msg, hdr);
12463 nlmsg_free(msg);
b23aa676
SO		 12464}
12465
04a773ad
JB		 12466void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
12467 struct net_device *netdev, const u8 *bssid,
12468 gfp_t gfp)
12469{
12470 struct sk_buff *msg;
12471 void *hdr;
12472
fd2120ca 12473 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 12474 if (!msg)
12475 return;
12476
12477 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
12478 if (!hdr) {
12479 nlmsg_free(msg);
12480 return;
12481 }
12482
9360ffd1
DM		 12483 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12484 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12485 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12486 goto nla_put_failure;
04a773ad 12487
3b7b72ee 12488 genlmsg_end(msg, hdr);
04a773ad 12489
68eb5503 12490 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12491 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 12492 return;
12493
12494 nla_put_failure:
12495 genlmsg_cancel(msg, hdr);
12496 nlmsg_free(msg);
12497}
12498
947add36
JB		 12499void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12500 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 12501{
947add36 12502 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12503 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 12504 struct sk_buff *msg;
12505 void *hdr;
12506
947add36
JB		 12507 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12508 return;
12509
12510 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12511
c93b5e71
JC		 12512 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12513 if (!msg)
12514 return;
12515
12516 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12517 if (!hdr) {
12518 nlmsg_free(msg);
12519 return;
12520 }
12521
9360ffd1 12522 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 12523 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12524 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 12525 (ie_len && ie &&
12526 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12527 goto nla_put_failure;
c93b5e71 12528
3b7b72ee 12529 genlmsg_end(msg, hdr);
c93b5e71 12530
68eb5503 12531 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12532 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 12533 return;
12534
12535 nla_put_failure:
12536 genlmsg_cancel(msg, hdr);
12537 nlmsg_free(msg);
12538}
947add36 12539EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 12540
a3b8b056
JM		 12541void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12542 struct net_device *netdev, const u8 *addr,
12543 enum nl80211_key_type key_type, int key_id,
e6d6e342 12544 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 12545{
12546 struct sk_buff *msg;
12547 void *hdr;
12548
e6d6e342 12549 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 12550 if (!msg)
12551 return;
12552
12553 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12554 if (!hdr) {
12555 nlmsg_free(msg);
12556 return;
12557 }
12558
9360ffd1
DM		 12559 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12560 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12561 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12562 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12563 (key_id != -1 &&
12564 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12565 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12566 goto nla_put_failure;
a3b8b056 12567
3b7b72ee 12568 genlmsg_end(msg, hdr);
a3b8b056 12569
68eb5503 12570 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12571 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 12572 return;
12573
12574 nla_put_failure:
12575 genlmsg_cancel(msg, hdr);
12576 nlmsg_free(msg);
12577}
12578
6bad8766
LR		 12579void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12580 struct ieee80211_channel *channel_before,
12581 struct ieee80211_channel *channel_after)
12582{
12583 struct sk_buff *msg;
12584 void *hdr;
12585 struct nlattr *nl_freq;
12586
fd2120ca 12587 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 12588 if (!msg)
12589 return;
12590
12591 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12592 if (!hdr) {
12593 nlmsg_free(msg);
12594 return;
12595 }
12596
12597 /*
12598 * Since we are applying the beacon hint to a wiphy we know its
12599 * wiphy_idx is valid
12600 */
9360ffd1
DM		 12601 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12602 goto nla_put_failure;
6bad8766
LR		 12603
12604 /* Before */
12605 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12606 if (!nl_freq)
12607 goto nla_put_failure;
cdc89b97 12608 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 12609 goto nla_put_failure;
12610 nla_nest_end(msg, nl_freq);
12611
12612 /* After */
12613 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12614 if (!nl_freq)
12615 goto nla_put_failure;
cdc89b97 12616 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 12617 goto nla_put_failure;
12618 nla_nest_end(msg, nl_freq);
12619
3b7b72ee 12620 genlmsg_end(msg, hdr);
6bad8766 12621
463d0183 12622 rcu_read_lock();
68eb5503 12623 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12624 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 12625 rcu_read_unlock();
6bad8766
LR		 12626
12627 return;
12628
12629nla_put_failure:
12630 genlmsg_cancel(msg, hdr);
12631 nlmsg_free(msg);
12632}
12633
9588bbd5
JM		 12634static void nl80211_send_remain_on_chan_event(
12635 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 12636 struct wireless_dev *wdev, u64 cookie,
9588bbd5 12637 struct ieee80211_channel *chan,
9588bbd5
JM		 12638 unsigned int duration, gfp_t gfp)
12639{
12640 struct sk_buff *msg;
12641 void *hdr;
12642
12643 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12644 if (!msg)
12645 return;
12646
12647 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12648 if (!hdr) {
12649 nlmsg_free(msg);
12650 return;
12651 }
12652
9360ffd1 12653 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12654 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12655 wdev->netdev->ifindex)) ||
2dad624e
ND		 12656 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12657 NL80211_ATTR_PAD) ||
9360ffd1 12658 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 12659 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12660 NL80211_CHAN_NO_HT) ||
2dad624e
ND		 12661 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12662 NL80211_ATTR_PAD))
9360ffd1 12663 goto nla_put_failure;
9588bbd5 12664
9360ffd1
DM		 12665 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12666 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12667 goto nla_put_failure;
9588bbd5 12668
3b7b72ee 12669 genlmsg_end(msg, hdr);
9588bbd5 12670
68eb5503 12671 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12672 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 12673 return;
12674
12675 nla_put_failure:
12676 genlmsg_cancel(msg, hdr);
12677 nlmsg_free(msg);
12678}
12679
947add36
JB		 12680void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12681 struct ieee80211_channel *chan,
12682 unsigned int duration, gfp_t gfp)
9588bbd5 12683{
947add36 12684 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12685 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12686
12687 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 12688 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 12689 rdev, wdev, cookie, chan,
42d97a59 12690 duration, gfp);
9588bbd5 12691}
947add36 12692EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 12693
947add36
JB		 12694void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12695 struct ieee80211_channel *chan,
12696 gfp_t gfp)
9588bbd5 12697{
947add36 12698 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12699 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12700
12701 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 12702 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 12703 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 12704}
947add36 12705EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 12706
947add36
JB		 12707void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12708 struct station_info *sinfo, gfp_t gfp)
98b62183 12709{
947add36 12710 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12711 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 12712 struct sk_buff *msg;
12713
947add36
JB		 12714 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12715
58050fce 12716 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 12717 if (!msg)
12718 return;
12719
cf5ead82 12720 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 12721 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 12722 nlmsg_free(msg);
12723 return;
12724 }
12725
68eb5503 12726 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12727 NL80211_MCGRP_MLME, gfp);
98b62183 12728}
947add36 12729EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 12730
cf5ead82
JB		 12731void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12732 struct station_info *sinfo, gfp_t gfp)
ec15e68b 12733{
947add36 12734 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12735 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 12736 struct sk_buff *msg;
cf5ead82
JB		 12737 struct station_info empty_sinfo = {};
12738
12739 if (!sinfo)
12740 sinfo = &empty_sinfo;
ec15e68b 12741
947add36
JB		 12742 trace_cfg80211_del_sta(dev, mac_addr);
12743
58050fce 12744 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 12745 if (!msg)
12746 return;
12747
cf5ead82 12748 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 12749 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 12750 nlmsg_free(msg);
12751 return;
12752 }
12753
68eb5503 12754 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12755 NL80211_MCGRP_MLME, gfp);
ec15e68b 12756}
cf5ead82 12757EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 12758
947add36
JB		 12759void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12760 enum nl80211_connect_failed_reason reason,
12761 gfp_t gfp)
ed44a951 12762{
947add36 12763 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12764 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 12765 struct sk_buff *msg;
12766 void *hdr;
12767
12768 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12769 if (!msg)
12770 return;
12771
12772 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12773 if (!hdr) {
12774 nlmsg_free(msg);
12775 return;
12776 }
12777
12778 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12779 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12780 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12781 goto nla_put_failure;
12782
12783 genlmsg_end(msg, hdr);
12784
68eb5503 12785 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12786 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 12787 return;
12788
12789 nla_put_failure:
12790 genlmsg_cancel(msg, hdr);
12791 nlmsg_free(msg);
12792}
947add36 12793EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 12794
b92ab5d8
JB		 12795static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12796 const u8 *addr, gfp_t gfp)
28946da7
JB		 12797{
12798 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12799 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 12800 struct sk_buff *msg;
12801 void *hdr;
15e47304 12802 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 12803
15e47304 12804 if (!nlportid)
28946da7
JB		 12805 return false;
12806
12807 msg = nlmsg_new(100, gfp);
12808 if (!msg)
12809 return true;
12810
b92ab5d8 12811 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 12812 if (!hdr) {
12813 nlmsg_free(msg);
12814 return true;
12815 }
12816
9360ffd1
DM		 12817 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12818 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12819 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12820 goto nla_put_failure;
28946da7 12821
9c90a9f6 12822 genlmsg_end(msg, hdr);
15e47304 12823 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 12824 return true;
12825
12826 nla_put_failure:
12827 genlmsg_cancel(msg, hdr);
12828 nlmsg_free(msg);
12829 return true;
12830}
12831
947add36
JB		 12832bool cfg80211_rx_spurious_frame(struct net_device *dev,
12833 const u8 *addr, gfp_t gfp)
b92ab5d8 12834{
947add36
JB		 12835 struct wireless_dev *wdev = dev->ieee80211_ptr;
12836 bool ret;
12837
12838 trace_cfg80211_rx_spurious_frame(dev, addr);
12839
12840 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12841 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12842 trace_cfg80211_return_bool(false);
12843 return false;
12844 }
12845 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12846 addr, gfp);
12847 trace_cfg80211_return_bool(ret);
12848 return ret;
b92ab5d8 12849}
947add36 12850EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 12851
947add36
JB		 12852bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12853 const u8 *addr, gfp_t gfp)
b92ab5d8 12854{
947add36
JB		 12855 struct wireless_dev *wdev = dev->ieee80211_ptr;
12856 bool ret;
12857
12858 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12859
12860 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12861 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12862 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12863 trace_cfg80211_return_bool(false);
12864 return false;
12865 }
12866 ret = __nl80211_unexpected_frame(dev,
12867 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12868 addr, gfp);
12869 trace_cfg80211_return_bool(ret);
12870 return ret;
b92ab5d8 12871}
947add36 12872EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 12873
2e161f78 12874int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 12875 struct wireless_dev *wdev, u32 nlportid,
804483e9 12876 int freq, int sig_dbm,
19504cf5 12877 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 12878{
71bbc994 12879 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12880 struct sk_buff *msg;
12881 void *hdr;
026331c4
JM		 12882
12883 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12884 if (!msg)
12885 return -ENOMEM;
12886
2e161f78 12887 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 12888 if (!hdr) {
12889 nlmsg_free(msg);
12890 return -ENOMEM;
12891 }
12892
9360ffd1 12893 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12894 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12895 netdev->ifindex)) ||
2dad624e
ND		 12896 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12897 NL80211_ATTR_PAD) ||
9360ffd1
DM		 12898 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12899 (sig_dbm &&
12900 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 12901 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12902 (flags &&
12903 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 12904 goto nla_put_failure;
026331c4 12905
3b7b72ee 12906 genlmsg_end(msg, hdr);
026331c4 12907
15e47304 12908 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 12909
12910 nla_put_failure:
12911 genlmsg_cancel(msg, hdr);
12912 nlmsg_free(msg);
12913 return -ENOBUFS;
12914}
12915
947add36
JB		 12916void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12917 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 12918{
947add36 12919 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12920 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 12921 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12922 struct sk_buff *msg;
12923 void *hdr;
12924
947add36
JB		 12925 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12926
026331c4
JM		 12927 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12928 if (!msg)
12929 return;
12930
2e161f78 12931 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 12932 if (!hdr) {
12933 nlmsg_free(msg);
12934 return;
12935 }
12936
9360ffd1 12937 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12938 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12939 netdev->ifindex)) ||
2dad624e
ND		 12940 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12941 NL80211_ATTR_PAD) ||
9360ffd1 12942 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
2dad624e
ND		 12943 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12944 NL80211_ATTR_PAD) ||
9360ffd1
DM		 12945 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12946 goto nla_put_failure;
026331c4 12947
3b7b72ee 12948 genlmsg_end(msg, hdr);
026331c4 12949
68eb5503 12950 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12951 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 12952 return;
12953
12954 nla_put_failure:
12955 genlmsg_cancel(msg, hdr);
12956 nlmsg_free(msg);
12957}
947add36 12958EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 12959
5b97f49d
JB		 12960static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12961 const char *mac, gfp_t gfp)
d6dc1a38 12962{
947add36 12963 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12964 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12965 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12966 void **cb;
947add36 12967
d6dc1a38 12968 if (!msg)
5b97f49d 12969 return NULL;
d6dc1a38 12970
5b97f49d
JB		 12971 cb = (void **)msg->cb;
12972
12973 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12974 if (!cb[0]) {
d6dc1a38 12975 nlmsg_free(msg);
5b97f49d 12976 return NULL;
d6dc1a38
JO		 12977 }
12978
9360ffd1 12979 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12980 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12981 goto nla_put_failure;
d6dc1a38 12982
5b97f49d 12983 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12984 goto nla_put_failure;
12985
5b97f49d
JB		 12986 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12987 if (!cb[1])
9360ffd1 12988 goto nla_put_failure;
d6dc1a38 12989
5b97f49d 12990 cb[2] = rdev;
d6dc1a38 12991
5b97f49d
JB		 12992 return msg;
12993 nla_put_failure:
12994 nlmsg_free(msg);
12995 return NULL;
12996}
12997
12998static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12999{
13000 void **cb = (void **)msg->cb;
13001 struct cfg80211_registered_device *rdev = cb[2];
13002
13003 nla_nest_end(msg, cb[1]);
13004 genlmsg_end(msg, cb[0]);
13005
13006 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 13007
68eb5503 13008 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13009 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 13010}
13011
13012void cfg80211_cqm_rssi_notify(struct net_device *dev,
13013 enum nl80211_cqm_rssi_threshold_event rssi_event,
13014 gfp_t gfp)
13015{
13016 struct sk_buff *msg;
13017
13018 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
13019
98f03342
JB		 13020 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
13021 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
13022 return;
13023
5b97f49d
JB		 13024 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13025 if (!msg)
13026 return;
13027
13028 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
13029 rssi_event))
13030 goto nla_put_failure;
13031
13032 cfg80211_send_cqm(msg, gfp);
13033
d6dc1a38
JO		 13034 return;
13035
13036 nla_put_failure:
d6dc1a38
JO		 13037 nlmsg_free(msg);
13038}
947add36 13039EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 13040
5b97f49d
JB		 13041void cfg80211_cqm_txe_notify(struct net_device *dev,
13042 const u8 *peer, u32 num_packets,
13043 u32 rate, u32 intvl, gfp_t gfp)
13044{
13045 struct sk_buff *msg;
13046
13047 msg = cfg80211_prepare_cqm(dev, peer, gfp);
13048 if (!msg)
13049 return;
13050
13051 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
13052 goto nla_put_failure;
13053
13054 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
13055 goto nla_put_failure;
13056
13057 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
13058 goto nla_put_failure;
13059
13060 cfg80211_send_cqm(msg, gfp);
13061 return;
13062
13063 nla_put_failure:
13064 nlmsg_free(msg);
13065}
13066EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
13067
13068void cfg80211_cqm_pktloss_notify(struct net_device *dev,
13069 const u8 *peer, u32 num_packets, gfp_t gfp)
13070{
13071 struct sk_buff *msg;
13072
13073 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
13074
13075 msg = cfg80211_prepare_cqm(dev, peer, gfp);
13076 if (!msg)
13077 return;
13078
13079 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
13080 goto nla_put_failure;
13081
13082 cfg80211_send_cqm(msg, gfp);
13083 return;
13084
13085 nla_put_failure:
13086 nlmsg_free(msg);
13087}
13088EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
13089
98f03342
JB		 13090void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
13091{
13092 struct sk_buff *msg;
13093
13094 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13095 if (!msg)
13096 return;
13097
13098 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
13099 goto nla_put_failure;
13100
13101 cfg80211_send_cqm(msg, gfp);
13102 return;
13103
13104 nla_put_failure:
13105 nlmsg_free(msg);
13106}
13107EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
13108
947add36
JB		 13109static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
13110 struct net_device *netdev, const u8 *bssid,
13111 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 13112{
13113 struct sk_buff *msg;
13114 struct nlattr *rekey_attr;
13115 void *hdr;
13116
58050fce 13117 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 13118 if (!msg)
13119 return;
13120
13121 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
13122 if (!hdr) {
13123 nlmsg_free(msg);
13124 return;
13125 }
13126
9360ffd1
DM		 13127 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13128 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13129 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13130 goto nla_put_failure;
e5497d76
JB		 13131
13132 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
13133 if (!rekey_attr)
13134 goto nla_put_failure;
13135
9360ffd1
DM		 13136 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
13137 NL80211_REPLAY_CTR_LEN, replay_ctr))
13138 goto nla_put_failure;
e5497d76
JB		 13139
13140 nla_nest_end(msg, rekey_attr);
13141
3b7b72ee 13142 genlmsg_end(msg, hdr);
e5497d76 13143
68eb5503 13144 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13145 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 13146 return;
13147
13148 nla_put_failure:
13149 genlmsg_cancel(msg, hdr);
13150 nlmsg_free(msg);
13151}
13152
947add36
JB		 13153void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
13154 const u8 *replay_ctr, gfp_t gfp)
13155{
13156 struct wireless_dev *wdev = dev->ieee80211_ptr;
13157 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13158 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13159
13160 trace_cfg80211_gtk_rekey_notify(dev, bssid);
13161 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
13162}
13163EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
13164
13165static void
13166nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
13167 struct net_device *netdev, int index,
13168 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 13169{
13170 struct sk_buff *msg;
13171 struct nlattr *attr;
13172 void *hdr;
13173
58050fce 13174 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 13175 if (!msg)
13176 return;
13177
13178 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
13179 if (!hdr) {
13180 nlmsg_free(msg);
13181 return;
13182 }
13183
9360ffd1
DM		 13184 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13185 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13186 goto nla_put_failure;
c9df56b4
JM		 13187
13188 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
13189 if (!attr)
13190 goto nla_put_failure;
13191
9360ffd1
DM		 13192 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
13193 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
13194 (preauth &&
13195 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
13196 goto nla_put_failure;
c9df56b4
JM		 13197
13198 nla_nest_end(msg, attr);
13199
3b7b72ee 13200 genlmsg_end(msg, hdr);
c9df56b4 13201
68eb5503 13202 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13203 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 13204 return;
13205
13206 nla_put_failure:
13207 genlmsg_cancel(msg, hdr);
13208 nlmsg_free(msg);
13209}
13210
947add36
JB		 13211void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
13212 const u8 *bssid, bool preauth, gfp_t gfp)
13213{
13214 struct wireless_dev *wdev = dev->ieee80211_ptr;
13215 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13216 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13217
13218 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
13219 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
13220}
13221EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
13222
13223static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
13224 struct net_device *netdev,
13225 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 13226 gfp_t gfp,
13227 enum nl80211_commands notif,
13228 u8 count)
5314526b
TP		 13229{
13230 struct sk_buff *msg;
13231 void *hdr;
13232
58050fce 13233 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 13234 if (!msg)
13235 return;
13236
f8d7552e 13237 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 13238 if (!hdr) {
13239 nlmsg_free(msg);
13240 return;
13241 }
13242
683b6d3b
JB		 13243 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13244 goto nla_put_failure;
13245
13246 if (nl80211_send_chandef(msg, chandef))
7eab0f64 13247 goto nla_put_failure;
5314526b 13248
f8d7552e
LC		 13249 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
13250 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
13251 goto nla_put_failure;
13252
5314526b
TP		 13253 genlmsg_end(msg, hdr);
13254
68eb5503 13255 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13256 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 13257 return;
13258
13259 nla_put_failure:
13260 genlmsg_cancel(msg, hdr);
13261 nlmsg_free(msg);
13262}
13263
947add36
JB		 13264void cfg80211_ch_switch_notify(struct net_device *dev,
13265 struct cfg80211_chan_def *chandef)
84f10708 13266{
947add36
JB		 13267 struct wireless_dev *wdev = dev->ieee80211_ptr;
13268 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13269 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 13270
e487eaeb 13271 ASSERT_WDEV_LOCK(wdev);
947add36 13272
e487eaeb 13273 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 13274
9e0e2961 13275 wdev->chandef = *chandef;
96f55f12 13276 wdev->preset_chandef = *chandef;
f8d7552e
LC		 13277 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13278 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 13279}
13280EXPORT_SYMBOL(cfg80211_ch_switch_notify);
13281
f8d7552e
LC		 13282void cfg80211_ch_switch_started_notify(struct net_device *dev,
13283 struct cfg80211_chan_def *chandef,
13284 u8 count)
13285{
13286 struct wireless_dev *wdev = dev->ieee80211_ptr;
13287 struct wiphy *wiphy = wdev->wiphy;
13288 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13289
13290 trace_cfg80211_ch_switch_started_notify(dev, chandef);
13291
13292 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13293 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
13294}
13295EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
13296
04f39047
SW		 13297void
13298nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 13299 const struct cfg80211_chan_def *chandef,
04f39047
SW		 13300 enum nl80211_radar_event event,
13301 struct net_device *netdev, gfp_t gfp)
13302{
13303 struct sk_buff *msg;
13304 void *hdr;
13305
13306 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13307 if (!msg)
13308 return;
13309
13310 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
13311 if (!hdr) {
13312 nlmsg_free(msg);
13313 return;
13314 }
13315
13316 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
13317 goto nla_put_failure;
13318
13319 /* NOP and radar events don't need a netdev parameter */
13320 if (netdev) {
13321 struct wireless_dev *wdev = netdev->ieee80211_ptr;
13322
13323 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
2dad624e
ND		 13324 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13325 NL80211_ATTR_PAD))
04f39047
SW		 13326 goto nla_put_failure;
13327 }
13328
13329 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
13330 goto nla_put_failure;
13331
13332 if (nl80211_send_chandef(msg, chandef))
13333 goto nla_put_failure;
13334
9c90a9f6 13335 genlmsg_end(msg, hdr);
04f39047 13336
68eb5503 13337 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13338 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 13339 return;
13340
13341 nla_put_failure:
13342 genlmsg_cancel(msg, hdr);
13343 nlmsg_free(msg);
13344}
13345
7f6cf311
JB		 13346void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
13347 u64 cookie, bool acked, gfp_t gfp)
13348{
13349 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13350 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 13351 struct sk_buff *msg;
13352 void *hdr;
7f6cf311 13353
4ee3e063
BL		 13354 trace_cfg80211_probe_status(dev, addr, cookie, acked);
13355
58050fce 13356 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 13357
7f6cf311
JB		 13358 if (!msg)
13359 return;
13360
13361 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
13362 if (!hdr) {
13363 nlmsg_free(msg);
13364 return;
13365 }
13366
9360ffd1
DM		 13367 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13368 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13369 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2dad624e
ND		 13370 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13371 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13372 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
13373 goto nla_put_failure;
7f6cf311 13374
9c90a9f6 13375 genlmsg_end(msg, hdr);
7f6cf311 13376
68eb5503 13377 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13378 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 13379 return;
13380
13381 nla_put_failure:
13382 genlmsg_cancel(msg, hdr);
13383 nlmsg_free(msg);
13384}
13385EXPORT_SYMBOL(cfg80211_probe_status);
13386
5e760230
JB		 13387void cfg80211_report_obss_beacon(struct wiphy *wiphy,
13388 const u8 *frame, size_t len,
37c73b5f 13389 int freq, int sig_dbm)
5e760230 13390{
f26cbf40 13391 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 13392 struct sk_buff *msg;
13393 void *hdr;
37c73b5f 13394 struct cfg80211_beacon_registration *reg;
5e760230 13395
4ee3e063
BL		 13396 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
13397
37c73b5f
BG		 13398 spin_lock_bh(&rdev->beacon_registrations_lock);
13399 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
13400 msg = nlmsg_new(len + 100, GFP_ATOMIC);
13401 if (!msg) {
13402 spin_unlock_bh(&rdev->beacon_registrations_lock);
13403 return;
13404 }
5e760230 13405
37c73b5f
BG		 13406 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
13407 if (!hdr)
13408 goto nla_put_failure;
5e760230 13409
37c73b5f
BG		 13410 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13411 (freq &&
13412 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
13413 (sig_dbm &&
13414 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
13415 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
13416 goto nla_put_failure;
5e760230 13417
37c73b5f 13418 genlmsg_end(msg, hdr);
5e760230 13419
37c73b5f
BG		 13420 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
13421 }
13422 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 13423 return;
13424
13425 nla_put_failure:
37c73b5f
BG		 13426 spin_unlock_bh(&rdev->beacon_registrations_lock);
13427 if (hdr)
13428 genlmsg_cancel(msg, hdr);
5e760230
JB		 13429 nlmsg_free(msg);
13430}
13431EXPORT_SYMBOL(cfg80211_report_obss_beacon);
13432
cd8f7cb4 13433#ifdef CONFIG_PM
8cd4d456
LC		 13434static int cfg80211_net_detect_results(struct sk_buff *msg,
13435 struct cfg80211_wowlan_wakeup *wakeup)
13436{
13437 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
13438 struct nlattr *nl_results, *nl_match, *nl_freqs;
13439 int i, j;
13440
13441 nl_results = nla_nest_start(
13442 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
13443 if (!nl_results)
13444 return -EMSGSIZE;
13445
13446 for (i = 0; i < nd->n_matches; i++) {
13447 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
13448
13449 nl_match = nla_nest_start(msg, i);
13450 if (!nl_match)
13451 break;
13452
13453 /* The SSID attribute is optional in nl80211, but for
13454 * simplicity reasons it's always present in the
13455 * cfg80211 structure. If a driver can't pass the
13456 * SSID, that needs to be changed. A zero length SSID
13457 * is still a valid SSID (wildcard), so it cannot be
13458 * used for this purpose.
13459 */
13460 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
13461 match->ssid.ssid)) {
13462 nla_nest_cancel(msg, nl_match);
13463 goto out;
13464 }
13465
13466 if (match->n_channels) {
13467 nl_freqs = nla_nest_start(
13468 msg, NL80211_ATTR_SCAN_FREQUENCIES);
13469 if (!nl_freqs) {
13470 nla_nest_cancel(msg, nl_match);
13471 goto out;
13472 }
13473
13474 for (j = 0; j < match->n_channels; j++) {
5528fae8 13475 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 13476 nla_nest_cancel(msg, nl_freqs);
13477 nla_nest_cancel(msg, nl_match);
13478 goto out;
13479 }
13480 }
13481
13482 nla_nest_end(msg, nl_freqs);
13483 }
13484
13485 nla_nest_end(msg, nl_match);
13486 }
13487
13488out:
13489 nla_nest_end(msg, nl_results);
13490 return 0;
13491}
13492
cd8f7cb4
JB		 13493void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
13494 struct cfg80211_wowlan_wakeup *wakeup,
13495 gfp_t gfp)
13496{
f26cbf40 13497 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 13498 struct sk_buff *msg;
13499 void *hdr;
9c90a9f6 13500 int size = 200;
cd8f7cb4
JB		 13501
13502 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13503
13504 if (wakeup)
13505 size += wakeup->packet_present_len;
13506
13507 msg = nlmsg_new(size, gfp);
13508 if (!msg)
13509 return;
13510
13511 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13512 if (!hdr)
13513 goto free_msg;
13514
13515 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 13516 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13517 NL80211_ATTR_PAD))
cd8f7cb4
JB		 13518 goto free_msg;
13519
13520 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13521 wdev->netdev->ifindex))
13522 goto free_msg;
13523
13524 if (wakeup) {
13525 struct nlattr *reasons;
13526
13527 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 13528 if (!reasons)
13529 goto free_msg;
cd8f7cb4
JB		 13530
13531 if (wakeup->disconnect &&
13532 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13533 goto free_msg;
13534 if (wakeup->magic_pkt &&
13535 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13536 goto free_msg;
13537 if (wakeup->gtk_rekey_failure &&
13538 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13539 goto free_msg;
13540 if (wakeup->eap_identity_req &&
13541 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13542 goto free_msg;
13543 if (wakeup->four_way_handshake &&
13544 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13545 goto free_msg;
13546 if (wakeup->rfkill_release &&
13547 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13548 goto free_msg;
13549
13550 if (wakeup->pattern_idx >= 0 &&
13551 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13552 wakeup->pattern_idx))
13553 goto free_msg;
13554
ae917c9f
JB		 13555 if (wakeup->tcp_match &&
13556 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13557 goto free_msg;
2a0e047e 13558
ae917c9f
JB		 13559 if (wakeup->tcp_connlost &&
13560 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13561 goto free_msg;
2a0e047e 13562
ae917c9f
JB		 13563 if (wakeup->tcp_nomoretokens &&
13564 nla_put_flag(msg,
13565 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13566 goto free_msg;
2a0e047e 13567
cd8f7cb4
JB		 13568 if (wakeup->packet) {
13569 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13570 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13571
13572 if (!wakeup->packet_80211) {
13573 pkt_attr =
13574 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13575 len_attr =
13576 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13577 }
13578
13579 if (wakeup->packet_len &&
13580 nla_put_u32(msg, len_attr, wakeup->packet_len))
13581 goto free_msg;
13582
13583 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13584 wakeup->packet))
13585 goto free_msg;
13586 }
13587
8cd4d456
LC		 13588 if (wakeup->net_detect &&
13589 cfg80211_net_detect_results(msg, wakeup))
13590 goto free_msg;
13591
cd8f7cb4
JB		 13592 nla_nest_end(msg, reasons);
13593 }
13594
9c90a9f6 13595 genlmsg_end(msg, hdr);
cd8f7cb4 13596
68eb5503 13597 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13598 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 13599 return;
13600
13601 free_msg:
13602 nlmsg_free(msg);
13603}
13604EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13605#endif
13606
3475b094
JM		 13607void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13608 enum nl80211_tdls_operation oper,
13609 u16 reason_code, gfp_t gfp)
13610{
13611 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13612 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 13613 struct sk_buff *msg;
13614 void *hdr;
3475b094
JM		 13615
13616 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13617 reason_code);
13618
13619 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13620 if (!msg)
13621 return;
13622
13623 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13624 if (!hdr) {
13625 nlmsg_free(msg);
13626 return;
13627 }
13628
13629 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13630 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13631 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13632 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13633 (reason_code > 0 &&
13634 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13635 goto nla_put_failure;
13636
9c90a9f6 13637 genlmsg_end(msg, hdr);
3475b094 13638
68eb5503 13639 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13640 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 13641 return;
13642
13643 nla_put_failure:
13644 genlmsg_cancel(msg, hdr);
13645 nlmsg_free(msg);
13646}
13647EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13648
026331c4
JM		 13649static int nl80211_netlink_notify(struct notifier_block * nb,
13650 unsigned long state,
13651 void *_notify)
13652{
13653 struct netlink_notify *notify = _notify;
13654 struct cfg80211_registered_device *rdev;
13655 struct wireless_dev *wdev;
37c73b5f 13656 struct cfg80211_beacon_registration *reg, *tmp;
026331c4 13657
8f815cdd 13658 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
026331c4
JM		 13659 return NOTIFY_DONE;
13660
13661 rcu_read_lock();
13662
5e760230 13663 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 13664 bool schedule_destroy_work = false;
93a1e86c
JR		 13665 bool schedule_scan_stop = false;
13666 struct cfg80211_sched_scan_request *sched_scan_req =
13667 rcu_dereference(rdev->sched_scan_req);
13668
13669 if (sched_scan_req && notify->portid &&
13670 sched_scan_req->owner_nlportid == notify->portid)
13671 schedule_scan_stop = true;
78f22b6a 13672
53873f13 13673 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15e47304 13674 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 13675
78f22b6a
JB		 13676 if (wdev->owner_nlportid == notify->portid)
13677 schedule_destroy_work = true;
13678 }
13679
37c73b5f
BG		 13680 spin_lock_bh(&rdev->beacon_registrations_lock);
13681 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13682 list) {
13683 if (reg->nlportid == notify->portid) {
13684 list_del(&reg->list);
13685 kfree(reg);
13686 break;
13687 }
13688 }
13689 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 13690
13691 if (schedule_destroy_work) {
13692 struct cfg80211_iface_destroy *destroy;
13693
13694 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13695 if (destroy) {
13696 destroy->nlportid = notify->portid;
13697 spin_lock(&rdev->destroy_list_lock);
13698 list_add(&destroy->list, &rdev->destroy_list);
13699 spin_unlock(&rdev->destroy_list_lock);
13700 schedule_work(&rdev->destroy_work);
13701 }
93a1e86c
JR		 13702 } else if (schedule_scan_stop) {
13703 sched_scan_req->owner_nlportid = 0;
13704
13705 if (rdev->ops->sched_scan_stop &&
13706 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13707 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 13708 }
5e760230 13709 }
026331c4
JM		 13710
13711 rcu_read_unlock();
13712
05050753
I		 13713 /*
13714 * It is possible that the user space process that is controlling the
13715 * indoor setting disappeared, so notify the regulatory core.
13716 */
13717 regulatory_netlink_notify(notify->portid);
6784c7db 13718 return NOTIFY_OK;
026331c4
JM		 13719}
13720
13721static struct notifier_block nl80211_netlink_notifier = {
13722 .notifier_call = nl80211_netlink_notify,
13723};
13724
355199e0
JM		 13725void cfg80211_ft_event(struct net_device *netdev,
13726 struct cfg80211_ft_event_params *ft_event)
13727{
13728 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 13729 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 13730 struct sk_buff *msg;
13731 void *hdr;
355199e0
JM		 13732
13733 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13734
13735 if (!ft_event->target_ap)
13736 return;
13737
13738 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13739 if (!msg)
13740 return;
13741
13742 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 13743 if (!hdr)
13744 goto out;
355199e0 13745
ae917c9f
JB		 13746 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13747 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13748 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13749 goto out;
355199e0 13750
ae917c9f
JB		 13751 if (ft_event->ies &&
13752 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13753 goto out;
13754 if (ft_event->ric_ies &&
13755 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13756 ft_event->ric_ies))
13757 goto out;
355199e0 13758
9c90a9f6 13759 genlmsg_end(msg, hdr);
355199e0 13760
68eb5503 13761 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13762 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 13763 return;
13764 out:
13765 nlmsg_free(msg);
355199e0
JM		 13766}
13767EXPORT_SYMBOL(cfg80211_ft_event);
13768
5de17984
AS		 13769void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13770{
13771 struct cfg80211_registered_device *rdev;
13772 struct sk_buff *msg;
13773 void *hdr;
13774 u32 nlportid;
13775
f26cbf40 13776 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 13777 if (!rdev->crit_proto_nlportid)
13778 return;
13779
13780 nlportid = rdev->crit_proto_nlportid;
13781 rdev->crit_proto_nlportid = 0;
13782
13783 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13784 if (!msg)
13785 return;
13786
13787 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13788 if (!hdr)
13789 goto nla_put_failure;
13790
13791 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 13792 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13793 NL80211_ATTR_PAD))
5de17984
AS		 13794 goto nla_put_failure;
13795
13796 genlmsg_end(msg, hdr);
13797
13798 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13799 return;
13800
13801 nla_put_failure:
13802 if (hdr)
13803 genlmsg_cancel(msg, hdr);
13804 nlmsg_free(msg);
5de17984
AS		 13805}
13806EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13807
348baf0e
JB		 13808void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13809{
13810 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13811 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 13812 struct sk_buff *msg;
13813 void *hdr;
13814
13815 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13816 if (!msg)
13817 return;
13818
13819 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13820 if (!hdr)
13821 goto out;
13822
13823 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13824 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
2dad624e
ND		 13825 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13826 NL80211_ATTR_PAD))
348baf0e
JB		 13827 goto out;
13828
13829 genlmsg_end(msg, hdr);
13830
13831 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13832 NL80211_MCGRP_MLME, GFP_KERNEL);
13833 return;
13834 out:
13835 nlmsg_free(msg);
13836}
13837
55682965
JB		 13838/* initialisation/exit functions */
13839
13840int nl80211_init(void)
13841{
0d63cbb5 13842 int err;
55682965 13843
2a94fe48
JB		 13844 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13845 nl80211_mcgrps);
55682965
JB		 13846 if (err)
13847 return err;
13848
026331c4
JM		 13849 err = netlink_register_notifier(&nl80211_netlink_notifier);
13850 if (err)
13851 goto err_out;
13852
55682965
JB		 13853 return 0;
13854 err_out:
13855 genl_unregister_family(&nl80211_fam);
13856 return err;
13857}
13858
13859void nl80211_exit(void)
13860{
026331c4 13861 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 13862 genl_unregister_family(&nl80211_fam);
13863}
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