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nl80211: Fix possible Spectre-v1 for NL80211_TXRATE_HT
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
66cd794e 6 * Copyright 2015-2017 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>
c7cb043b 19#include <linux/nospec.h>
2a519311 20#include <linux/etherdevice.h>
463d0183 21#include <net/net_namespace.h>
55682965
JB		 22#include <net/genetlink.h>
23#include <net/cfg80211.h>
463d0183 24#include <net/sock.h>
2a0e047e 25#include <net/inet_connection_sock.h>
55682965
JB		 26#include "core.h"
27#include "nl80211.h"
b2e1b302 28#include "reg.h"
e35e4d28 29#include "rdev-ops.h"
55682965 30
5fb628e9
JM		 31static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
32 struct genl_info *info,
33 struct cfg80211_crypto_settings *settings,
34 int cipher_limit);
35
55682965 36/* the netlink family */
489111e5 37static struct genl_family nl80211_fam;
55682965 38
2a94fe48
JB		 39/* multicast groups */
40enum nl80211_multicast_groups {
41 NL80211_MCGRP_CONFIG,
42 NL80211_MCGRP_SCAN,
43 NL80211_MCGRP_REGULATORY,
44 NL80211_MCGRP_MLME,
567ffc35 45 NL80211_MCGRP_VENDOR,
50bcd31d 46 NL80211_MCGRP_NAN,
2a94fe48
JB		 47 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
48};
49
50static const struct genl_multicast_group nl80211_mcgrps[] = {
71b836ec
JB		 51 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
52 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
53 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
54 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
55 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
50bcd31d 56 [NL80211_MCGRP_NAN] = { .name = NL80211_MULTICAST_GROUP_NAN },
2a94fe48 57#ifdef CONFIG_NL80211_TESTMODE
71b836ec 58 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
2a94fe48
JB		 59#endif
60};
61
89a54e48
JB		 62/* returns ERR_PTR values */
63static struct wireless_dev *
64__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 65{
89a54e48
JB		 66 struct cfg80211_registered_device *rdev;
67 struct wireless_dev *result = NULL;
68 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
69 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
70 u64 wdev_id;
71 int wiphy_idx = -1;
72 int ifidx = -1;
55682965 73
5fe231e8 74 ASSERT_RTNL();
55682965 75
89a54e48
JB		 76 if (!have_ifidx && !have_wdev_id)
77 return ERR_PTR(-EINVAL);
55682965 78
89a54e48
JB		 79 if (have_ifidx)
80 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
81 if (have_wdev_id) {
82 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
83 wiphy_idx = wdev_id >> 32;
55682965
JB		 84 }
85
89a54e48
JB		 86 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
87 struct wireless_dev *wdev;
88
89 if (wiphy_net(&rdev->wiphy) != netns)
90 continue;
91
92 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
93 continue;
94
53873f13 95 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
89a54e48
JB		 96 if (have_ifidx && wdev->netdev &&
97 wdev->netdev->ifindex == ifidx) {
98 result = wdev;
99 break;
100 }
101 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
102 result = wdev;
103 break;
104 }
105 }
89a54e48
JB		 106
107 if (result)
108 break;
109 }
110
111 if (result)
112 return result;
113 return ERR_PTR(-ENODEV);
55682965
JB		 114}
115
a9455408 116static struct cfg80211_registered_device *
878d9ec7 117__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 118{
7fee4778
JB		 119 struct cfg80211_registered_device *rdev = NULL, *tmp;
120 struct net_device *netdev;
a9455408 121
5fe231e8 122 ASSERT_RTNL();
a9455408 123
878d9ec7 124 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 125 !attrs[NL80211_ATTR_IFINDEX] &&
126 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 127 return ERR_PTR(-EINVAL);
128
878d9ec7 129 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 130 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 131 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 132
89a54e48
JB		 133 if (attrs[NL80211_ATTR_WDEV]) {
134 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
135 struct wireless_dev *wdev;
136 bool found = false;
137
138 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
139 if (tmp) {
140 /* make sure wdev exists */
53873f13 141 list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
89a54e48
JB		 142 if (wdev->identifier != (u32)wdev_id)
143 continue;
144 found = true;
145 break;
146 }
89a54e48
JB		 147
148 if (!found)
149 tmp = NULL;
150
151 if (rdev && tmp != rdev)
152 return ERR_PTR(-EINVAL);
153 rdev = tmp;
154 }
155 }
156
878d9ec7
JB		 157 if (attrs[NL80211_ATTR_IFINDEX]) {
158 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7a087e74 159
7f2b8562 160 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 161 if (netdev) {
162 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 163 tmp = wiphy_to_rdev(
164 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 165 else
166 tmp = NULL;
167
7fee4778
JB		 168 /* not wireless device -- return error */
169 if (!tmp)
170 return ERR_PTR(-EINVAL);
171
172 /* mismatch -- return error */
173 if (rdev && tmp != rdev)
174 return ERR_PTR(-EINVAL);
175
176 rdev = tmp;
a9455408 177 }
a9455408 178 }
a9455408 179
4f7eff10
JB		 180 if (!rdev)
181 return ERR_PTR(-ENODEV);
a9455408 182
4f7eff10
JB		 183 if (netns != wiphy_net(&rdev->wiphy))
184 return ERR_PTR(-ENODEV);
185
186 return rdev;
a9455408
JB		 187}
188
189/*
190 * This function returns a pointer to the driver
191 * that the genl_info item that is passed refers to.
a9455408
JB		 192 *
193 * The result of this can be a PTR_ERR and hence must
194 * be checked with IS_ERR() for errors.
195 */
196static struct cfg80211_registered_device *
4f7eff10 197cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 198{
5fe231e8 199 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 200}
201
55682965 202/* policy for the attributes */
8cd4d456 203static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 204 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
205 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 206 .len = 20-1 },
31888487 207 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 208
72bdcf34 209 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 210 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 211 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
212 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
213 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
214
b9a5f8ca
JM		 215 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
216 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
217 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
218 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 219 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 220 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 221
222 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
223 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
224 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 225
e007b857
EP		 226 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
227 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 228
b9454e83 229 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 230 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
231 .len = WLAN_MAX_KEY_LEN },
232 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
233 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
234 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 235 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 236 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 237
238 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
239 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
240 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
241 .len = IEEE80211_MAX_DATA_LEN },
242 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
243 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 244 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
245 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
246 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
247 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
248 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 249 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 250 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 251 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 252 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 253 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 254 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 255
b2e1b302
LR		 256 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
257 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
258
9f1ba906
JM		 259 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
260 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
261 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 262 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
263 .len = NL80211_MAX_SUPP_RATES },
50b12f59 264 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 265
24bdd9f4 266 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 267 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 268
6c739419 269 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 270
271 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
272 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
273 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 274 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
275 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 276
277 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
278 .len = IEEE80211_MAX_SSID_LEN },
279 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
280 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 281 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 282 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 283 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 284 [NL80211_ATTR_STA_FLAGS2] = {
285 .len = sizeof(struct nl80211_sta_flag_update),
286 },
3f77316c 287 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 288 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
289 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 290 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
291 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
292 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 293 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 294 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
9361df14 295 [NL80211_ATTR_PMKID] = { .len = WLAN_PMKID_LEN },
9588bbd5
JM		 296 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
297 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 298 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 299 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
300 .len = IEEE80211_MAX_DATA_LEN },
301 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 302 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 303 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 304 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 305 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 306 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
307 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 308 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 309 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
310 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 311 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 312 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 313 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 314 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 315 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 316 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 317 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 318 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 319 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 320 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
321 .len = IEEE80211_MAX_DATA_LEN },
322 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
323 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 324 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 325 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 326 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 327 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
328 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
329 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
330 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
331 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 332 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 333 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 334 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
335 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 336 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 337 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
338 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
339 .len = NL80211_HT_CAPABILITY_LEN
340 },
1d9d9213 341 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 342 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 343 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 344 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 345 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
11b6b5a4 346 [NL80211_ATTR_AUTH_DATA] = { .type = NLA_BINARY, },
f461be3e 347 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 348 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 349 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
350 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
8feb69c7 351 [NL80211_ATTR_LOCAL_MESH_POWER_MODE] = {. type = NLA_U32 },
77765eaf
VT		 352 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
353 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 354 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
355 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 356 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 357 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
358 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
359 .len = NL80211_VHT_CAPABILITY_LEN,
360 },
355199e0
JM		 361 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
362 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
363 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 364 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 365 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
366 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
367 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 368 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
369 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 370 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
371 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 372 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 373 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 374 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
375 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
376 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 377 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
378 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 379 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
380 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 381 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
18e5ca65 382 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 383 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 384 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 385 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
386 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
387 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 388 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 389 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 390 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
4b681c82 391 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
9c748934 392 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
05050753 393 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
34d50519 394 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
38de03d2 395 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
17b94247 396 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
c6e6a0c8
AE		 397 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
398 .len = VHT_MUMIMO_GROUPS_DATA_LEN
399 },
400 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
cb3b7d87 401 [NL80211_ATTR_NAN_MASTER_PREF] = { .type = NLA_U8 },
8585989d 402 [NL80211_ATTR_BANDS] = { .type = NLA_U32 },
a442b761 403 [NL80211_ATTR_NAN_FUNC] = { .type = NLA_NESTED },
348bd456
JM		 404 [NL80211_ATTR_FILS_KEK] = { .type = NLA_BINARY,
405 .len = FILS_MAX_KEK_LEN },
406 [NL80211_ATTR_FILS_NONCES] = { .len = 2 * FILS_NONCE_LEN },
ce0ce13a 407 [NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED] = { .type = NLA_FLAG, },
2fa436b3 408 [NL80211_ATTR_BSSID] = { .len = ETH_ALEN },
bf95ecdb 409 [NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] = { .type = NLA_S8 },
410 [NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST] = {
411 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
412 },
3093ebbe 413 [NL80211_ATTR_TIMEOUT_REASON] = { .type = NLA_U32 },
a3caf744
VK		 414 [NL80211_ATTR_FILS_ERP_USERNAME] = { .type = NLA_BINARY,
415 .len = FILS_ERP_MAX_USERNAME_LEN },
416 [NL80211_ATTR_FILS_ERP_REALM] = { .type = NLA_BINARY,
417 .len = FILS_ERP_MAX_REALM_LEN },
418 [NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] = { .type = NLA_U16 },
419 [NL80211_ATTR_FILS_ERP_RRK] = { .type = NLA_BINARY,
420 .len = FILS_ERP_MAX_RRK_LEN },
421 [NL80211_ATTR_FILS_CACHE_ID] = { .len = 2 },
422 [NL80211_ATTR_PMK] = { .type = NLA_BINARY, .len = PMK_MAX_LEN },
ca986ad9 423 [NL80211_ATTR_SCHED_SCAN_MULTI] = { .type = NLA_FLAG },
55682965
JB		 424};
425
e31b8213 426/* policy for the key attributes */
b54452b0 427static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 428 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 429 [NL80211_KEY_IDX] = { .type = NLA_U8 },
430 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 431 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 432 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
433 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 434 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 435 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
436};
437
438/* policy for the key default flags */
439static const struct nla_policy
440nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
441 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
442 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 443};
444
f83ace3b 445#ifdef CONFIG_PM
ff1b6e69
JB		 446/* policy for WoWLAN attributes */
447static const struct nla_policy
448nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
449 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
450 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
451 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
452 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 453 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
454 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
455 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
456 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 457 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 458 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 459};
460
461static const struct nla_policy
462nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
463 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
464 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
465 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
466 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
467 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
468 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
469 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
470 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
471 },
472 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
473 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
474 },
475 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
476 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
477 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69 478};
f83ace3b 479#endif /* CONFIG_PM */
ff1b6e69 480
be29b99a
AK		 481/* policy for coalesce rule attributes */
482static const struct nla_policy
483nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
484 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
485 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
486 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
487};
488
e5497d76
JB		 489/* policy for GTK rekey offload attributes */
490static const struct nla_policy
491nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
492 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
493 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
494 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
495};
496
a1f1c21c
LC		 497static const struct nla_policy
498nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 499 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 500 .len = IEEE80211_MAX_SSID_LEN },
3007e352 501 [NL80211_SCHED_SCAN_MATCH_ATTR_BSSID] = { .len = ETH_ALEN },
88e920b4 502 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 503};
504
3b06d277
AS		 505static const struct nla_policy
506nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
507 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
508 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
509};
510
38de03d2
AS		 511static const struct nla_policy
512nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
513 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
514 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
515 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
516 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
517 },
518};
519
a442b761
AB		 520/* policy for NAN function attributes */
521static const struct nla_policy
522nl80211_nan_func_policy[NL80211_NAN_FUNC_ATTR_MAX + 1] = {
523 [NL80211_NAN_FUNC_TYPE] = { .type = NLA_U8 },
0a27844c 524 [NL80211_NAN_FUNC_SERVICE_ID] = {
a442b761
AB		 525 .len = NL80211_NAN_FUNC_SERVICE_ID_LEN },
526 [NL80211_NAN_FUNC_PUBLISH_TYPE] = { .type = NLA_U8 },
527 [NL80211_NAN_FUNC_PUBLISH_BCAST] = { .type = NLA_FLAG },
528 [NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE] = { .type = NLA_FLAG },
529 [NL80211_NAN_FUNC_FOLLOW_UP_ID] = { .type = NLA_U8 },
530 [NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] = { .type = NLA_U8 },
531 [NL80211_NAN_FUNC_FOLLOW_UP_DEST] = { .len = ETH_ALEN },
532 [NL80211_NAN_FUNC_CLOSE_RANGE] = { .type = NLA_FLAG },
533 [NL80211_NAN_FUNC_TTL] = { .type = NLA_U32 },
534 [NL80211_NAN_FUNC_SERVICE_INFO] = { .type = NLA_BINARY,
535 .len = NL80211_NAN_FUNC_SERVICE_SPEC_INFO_MAX_LEN },
536 [NL80211_NAN_FUNC_SRF] = { .type = NLA_NESTED },
537 [NL80211_NAN_FUNC_RX_MATCH_FILTER] = { .type = NLA_NESTED },
538 [NL80211_NAN_FUNC_TX_MATCH_FILTER] = { .type = NLA_NESTED },
539 [NL80211_NAN_FUNC_INSTANCE_ID] = { .type = NLA_U8 },
540 [NL80211_NAN_FUNC_TERM_REASON] = { .type = NLA_U8 },
541};
542
543/* policy for Service Response Filter attributes */
544static const struct nla_policy
545nl80211_nan_srf_policy[NL80211_NAN_SRF_ATTR_MAX + 1] = {
546 [NL80211_NAN_SRF_INCLUDE] = { .type = NLA_FLAG },
547 [NL80211_NAN_SRF_BF] = { .type = NLA_BINARY,
548 .len = NL80211_NAN_FUNC_SRF_MAX_LEN },
549 [NL80211_NAN_SRF_BF_IDX] = { .type = NLA_U8 },
550 [NL80211_NAN_SRF_MAC_ADDRS] = { .type = NLA_NESTED },
551};
552
ad670233
PX		 553/* policy for packet pattern attributes */
554static const struct nla_policy
555nl80211_packet_pattern_policy[MAX_NL80211_PKTPAT + 1] = {
556 [NL80211_PKTPAT_MASK] = { .type = NLA_BINARY, },
557 [NL80211_PKTPAT_PATTERN] = { .type = NLA_BINARY, },
558 [NL80211_PKTPAT_OFFSET] = { .type = NLA_U32 },
559};
560
97990a06
JB		 561static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
562 struct netlink_callback *cb,
563 struct cfg80211_registered_device **rdev,
564 struct wireless_dev **wdev)
a043897a 565{
97990a06 566 int err;
a043897a 567
97990a06
JB		 568 if (!cb->args[0]) {
569 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
c90c39da 570 genl_family_attrbuf(&nl80211_fam),
fceb6435 571 nl80211_fam.maxattr, nl80211_policy, NULL);
97990a06 572 if (err)
ea90e0dc 573 return err;
67748893 574
c90c39da
JB		 575 *wdev = __cfg80211_wdev_from_attrs(
576 sock_net(skb->sk),
577 genl_family_attrbuf(&nl80211_fam));
ea90e0dc
JB		 578 if (IS_ERR(*wdev))
579 return PTR_ERR(*wdev);
f26cbf40 580 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 581 /* 0 is the first index - add 1 to parse only once */
582 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 583 cb->args[1] = (*wdev)->identifier;
584 } else {
c319d50b
JB		 585 /* subtract the 1 again here */
586 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 587 struct wireless_dev *tmp;
67748893 588
ea90e0dc
JB		 589 if (!wiphy)
590 return -ENODEV;
f26cbf40 591 *rdev = wiphy_to_rdev(wiphy);
97990a06 592 *wdev = NULL;
67748893 593
53873f13 594 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
97990a06
JB		 595 if (tmp->identifier == cb->args[1]) {
596 *wdev = tmp;
597 break;
598 }
599 }
67748893 600
ea90e0dc
JB		 601 if (!*wdev)
602 return -ENODEV;
67748893
JB		 603 }
604
67748893 605 return 0;
67748893
JB		 606}
607
f4a11bb0
JB		 608/* IE validation */
609static bool is_valid_ie_attr(const struct nlattr *attr)
610{
611 const u8 *pos;
612 int len;
613
614 if (!attr)
615 return true;
616
617 pos = nla_data(attr);
618 len = nla_len(attr);
619
620 while (len) {
621 u8 elemlen;
622
623 if (len < 2)
624 return false;
625 len -= 2;
626
627 elemlen = pos[1];
628 if (elemlen > len)
629 return false;
630
631 len -= elemlen;
632 pos += 2 + elemlen;
633 }
634
635 return true;
636}
637
55682965 638/* message building helper */
15e47304 639static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 640 int flags, u8 cmd)
641{
642 /* since there is no private header just add the generic one */
15e47304 643 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 644}
645
5dab3b8a 646static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 647 struct ieee80211_channel *chan,
648 bool large)
5dab3b8a 649{
ea077c1c
RL		 650 /* Some channels must be completely excluded from the
651 * list to protect old user-space tools from breaking
652 */
653 if (!large && chan->flags &
654 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
655 return 0;
656
9360ffd1
DM		 657 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
658 chan->center_freq))
659 goto nla_put_failure;
5dab3b8a 660
9360ffd1
DM		 661 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
662 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
663 goto nla_put_failure;
8fe02e16
LR		 664 if (chan->flags & IEEE80211_CHAN_NO_IR) {
665 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
666 goto nla_put_failure;
667 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
668 goto nla_put_failure;
669 }
cdc89b97
JB		 670 if (chan->flags & IEEE80211_CHAN_RADAR) {
671 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
672 goto nla_put_failure;
673 if (large) {
674 u32 time;
675
676 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
677
678 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
679 chan->dfs_state))
680 goto nla_put_failure;
681 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
682 time))
683 goto nla_put_failure;
089027e5
JD		 684 if (nla_put_u32(msg,
685 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
686 chan->dfs_cac_ms))
687 goto nla_put_failure;
cdc89b97
JB		 688 }
689 }
5dab3b8a 690
fe1abafd
JB		 691 if (large) {
692 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
693 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
694 goto nla_put_failure;
695 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
696 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
697 goto nla_put_failure;
698 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
699 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
700 goto nla_put_failure;
701 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
702 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
703 goto nla_put_failure;
570dbde1
DS		 704 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
705 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
706 goto nla_put_failure;
06f207fc
AN		 707 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
708 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 709 goto nla_put_failure;
ea077c1c
RL		 710 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
711 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
712 goto nla_put_failure;
713 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
714 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
715 goto nla_put_failure;
fe1abafd
JB		 716 }
717
9360ffd1
DM		 718 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
719 DBM_TO_MBM(chan->max_power)))
720 goto nla_put_failure;
5dab3b8a
LR		 721
722 return 0;
723
724 nla_put_failure:
725 return -ENOBUFS;
726}
727
55682965
JB		 728/* netlink command implementations */
729
b9454e83
JB		 730struct key_parse {
731 struct key_params p;
732 int idx;
e31b8213 733 int type;
b9454e83 734 bool def, defmgmt;
dbd2fd65 735 bool def_uni, def_multi;
b9454e83
JB		 736};
737
738static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
739{
740 struct nlattr *tb[NL80211_KEY_MAX + 1];
741 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
fceb6435 742 nl80211_key_policy, NULL);
b9454e83
JB		 743 if (err)
744 return err;
745
746 k->def = !!tb[NL80211_KEY_DEFAULT];
747 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
748
dbd2fd65
JB		 749 if (k->def) {
750 k->def_uni = true;
751 k->def_multi = true;
752 }
753 if (k->defmgmt)
754 k->def_multi = true;
755
b9454e83
JB		 756 if (tb[NL80211_KEY_IDX])
757 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
758
759 if (tb[NL80211_KEY_DATA]) {
760 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
761 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
762 }
763
764 if (tb[NL80211_KEY_SEQ]) {
765 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
766 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
767 }
768
769 if (tb[NL80211_KEY_CIPHER])
770 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
771
e31b8213
JB		 772 if (tb[NL80211_KEY_TYPE]) {
773 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
774 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
775 return -EINVAL;
776 }
777
dbd2fd65
JB		 778 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
779 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
7a087e74 780
2da8f419
JB		 781 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
782 tb[NL80211_KEY_DEFAULT_TYPES],
fceb6435 783 nl80211_key_default_policy, NULL);
dbd2fd65
JB		 784 if (err)
785 return err;
786
787 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
788 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
789 }
790
b9454e83
JB		 791 return 0;
792}
793
794static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
795{
796 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
797 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
798 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
799 }
800
801 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
802 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
803 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
804 }
805
806 if (info->attrs[NL80211_ATTR_KEY_IDX])
807 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
808
809 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
810 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
811
812 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
813 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
814
dbd2fd65
JB		 815 if (k->def) {
816 k->def_uni = true;
817 k->def_multi = true;
818 }
819 if (k->defmgmt)
820 k->def_multi = true;
821
e31b8213
JB		 822 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
823 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
824 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
825 return -EINVAL;
826 }
827
dbd2fd65
JB		 828 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
829 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
fceb6435
JB		 830 int err = nla_parse_nested(kdt,
831 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
832 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
fe52145f
JB		 833 nl80211_key_default_policy,
834 info->extack);
dbd2fd65
JB		 835 if (err)
836 return err;
837
838 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
839 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
840 }
841
b9454e83
JB		 842 return 0;
843}
844
845static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
846{
847 int err;
848
849 memset(k, 0, sizeof(*k));
850 k->idx = -1;
e31b8213 851 k->type = -1;
b9454e83
JB		 852
853 if (info->attrs[NL80211_ATTR_KEY])
854 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
855 else
856 err = nl80211_parse_key_old(info, k);
857
858 if (err)
859 return err;
860
861 if (k->def && k->defmgmt)
862 return -EINVAL;
863
dbd2fd65
JB		 864 if (k->defmgmt) {
865 if (k->def_uni || !k->def_multi)
866 return -EINVAL;
867 }
868
b9454e83
JB		 869 if (k->idx != -1) {
870 if (k->defmgmt) {
871 if (k->idx < 4 || k->idx > 5)
872 return -EINVAL;
873 } else if (k->def) {
874 if (k->idx < 0 || k->idx > 3)
875 return -EINVAL;
876 } else {
877 if (k->idx < 0 || k->idx > 5)
878 return -EINVAL;
879 }
880 }
881
882 return 0;
883}
884
fffd0934
JB		 885static struct cfg80211_cached_keys *
886nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 887 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 888{
889 struct key_parse parse;
890 struct nlattr *key;
891 struct cfg80211_cached_keys *result;
892 int rem, err, def = 0;
f1c1f17a
JB		 893 bool have_key = false;
894
895 nla_for_each_nested(key, keys, rem) {
896 have_key = true;
897 break;
898 }
899
900 if (!have_key)
901 return NULL;
fffd0934
JB		 902
903 result = kzalloc(sizeof(*result), GFP_KERNEL);
904 if (!result)
905 return ERR_PTR(-ENOMEM);
906
907 result->def = -1;
fffd0934
JB		 908
909 nla_for_each_nested(key, keys, rem) {
910 memset(&parse, 0, sizeof(parse));
911 parse.idx = -1;
912
913 err = nl80211_parse_key_new(key, &parse);
914 if (err)
915 goto error;
916 err = -EINVAL;
917 if (!parse.p.key)
918 goto error;
42ee231c 919 if (parse.idx < 0 || parse.idx > 3)
fffd0934
JB		 920 goto error;
921 if (parse.def) {
922 if (def)
923 goto error;
924 def = 1;
925 result->def = parse.idx;
dbd2fd65
JB		 926 if (!parse.def_uni || !parse.def_multi)
927 goto error;
fffd0934
JB		 928 } else if (parse.defmgmt)
929 goto error;
930 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 931 parse.idx, false, NULL);
fffd0934
JB		 932 if (err)
933 goto error;
386b1f27
JB		 934 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
935 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
936 err = -EINVAL;
937 goto error;
938 }
fffd0934
JB		 939 result->params[parse.idx].cipher = parse.p.cipher;
940 result->params[parse.idx].key_len = parse.p.key_len;
941 result->params[parse.idx].key = result->data[parse.idx];
942 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee 943
386b1f27
JB		 944 /* must be WEP key if we got here */
945 if (no_ht)
946 *no_ht = true;
fffd0934
JB		 947 }
948
f1c1f17a
JB		 949 if (result->def < 0) {
950 err = -EINVAL;
951 goto error;
952 }
953
fffd0934
JB		 954 return result;
955 error:
956 kfree(result);
957 return ERR_PTR(err);
958}
959
960static int nl80211_key_allowed(struct wireless_dev *wdev)
961{
962 ASSERT_WDEV_LOCK(wdev);
963
fffd0934
JB		 964 switch (wdev->iftype) {
965 case NL80211_IFTYPE_AP:
966 case NL80211_IFTYPE_AP_VLAN:
074ac8df 967 case NL80211_IFTYPE_P2P_GO:
ff973af7 968 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 969 break;
970 case NL80211_IFTYPE_ADHOC:
fffd0934 971 case NL80211_IFTYPE_STATION:
074ac8df 972 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 973 if (!wdev->current_bss)
fffd0934
JB		 974 return -ENOLINK;
975 break;
de4fcbad 976 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 977 case NL80211_IFTYPE_OCB:
de4fcbad 978 case NL80211_IFTYPE_MONITOR:
cb3b7d87 979 case NL80211_IFTYPE_NAN:
de4fcbad
JB		 980 case NL80211_IFTYPE_P2P_DEVICE:
981 case NL80211_IFTYPE_WDS:
982 case NUM_NL80211_IFTYPES:
fffd0934
JB		 983 return -EINVAL;
984 }
985
986 return 0;
987}
988
664834de
JM		 989static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
990 struct nlattr *tb)
991{
992 struct ieee80211_channel *chan;
993
994 if (tb == NULL)
995 return NULL;
996 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
997 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
998 return NULL;
999 return chan;
1000}
1001
7527a782
JB		 1002static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
1003{
1004 struct nlattr *nl_modes = nla_nest_start(msg, attr);
1005 int i;
1006
1007 if (!nl_modes)
1008 goto nla_put_failure;
1009
1010 i = 0;
1011 while (ifmodes) {
9360ffd1
DM		 1012 if ((ifmodes & 1) && nla_put_flag(msg, i))
1013 goto nla_put_failure;
7527a782
JB		 1014 ifmodes >>= 1;
1015 i++;
1016 }
1017
1018 nla_nest_end(msg, nl_modes);
1019 return 0;
1020
1021nla_put_failure:
1022 return -ENOBUFS;
1023}
1024
1025static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 1026 struct sk_buff *msg,
1027 bool large)
7527a782
JB		 1028{
1029 struct nlattr *nl_combis;
1030 int i, j;
1031
1032 nl_combis = nla_nest_start(msg,
1033 NL80211_ATTR_INTERFACE_COMBINATIONS);
1034 if (!nl_combis)
1035 goto nla_put_failure;
1036
1037 for (i = 0; i < wiphy->n_iface_combinations; i++) {
1038 const struct ieee80211_iface_combination *c;
1039 struct nlattr *nl_combi, *nl_limits;
1040
1041 c = &wiphy->iface_combinations[i];
1042
1043 nl_combi = nla_nest_start(msg, i + 1);
1044 if (!nl_combi)
1045 goto nla_put_failure;
1046
1047 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1048 if (!nl_limits)
1049 goto nla_put_failure;
1050
1051 for (j = 0; j < c->n_limits; j++) {
1052 struct nlattr *nl_limit;
1053
1054 nl_limit = nla_nest_start(msg, j + 1);
1055 if (!nl_limit)
1056 goto nla_put_failure;
9360ffd1
DM		 1057 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1058 c->limits[j].max))
1059 goto nla_put_failure;
7527a782
JB		 1060 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1061 c->limits[j].types))
1062 goto nla_put_failure;
1063 nla_nest_end(msg, nl_limit);
1064 }
1065
1066 nla_nest_end(msg, nl_limits);
1067
9360ffd1
DM		 1068 if (c->beacon_int_infra_match &&
1069 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1070 goto nla_put_failure;
1071 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1072 c->num_different_channels) ||
1073 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1074 c->max_interfaces))
1075 goto nla_put_failure;
cdc89b97 1076 if (large &&
8c48b50a
FF		 1077 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1078 c->radar_detect_widths) ||
1079 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1080 c->radar_detect_regions)))
cdc89b97 1081 goto nla_put_failure;
0c317a02
PK		 1082 if (c->beacon_int_min_gcd &&
1083 nla_put_u32(msg, NL80211_IFACE_COMB_BI_MIN_GCD,
1084 c->beacon_int_min_gcd))
1085 goto nla_put_failure;
7527a782
JB		 1086
1087 nla_nest_end(msg, nl_combi);
1088 }
1089
1090 nla_nest_end(msg, nl_combis);
1091
1092 return 0;
1093nla_put_failure:
1094 return -ENOBUFS;
1095}
1096
3713b4e3 1097#ifdef CONFIG_PM
b56cf720
JB		 1098static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1099 struct sk_buff *msg)
1100{
964dc9e2 1101 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1102 struct nlattr *nl_tcp;
1103
1104 if (!tcp)
1105 return 0;
1106
1107 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1108 if (!nl_tcp)
1109 return -ENOBUFS;
1110
1111 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1112 tcp->data_payload_max))
1113 return -ENOBUFS;
1114
1115 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1116 tcp->data_payload_max))
1117 return -ENOBUFS;
1118
1119 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1120 return -ENOBUFS;
1121
1122 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1123 sizeof(*tcp->tok), tcp->tok))
1124 return -ENOBUFS;
1125
1126 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1127 tcp->data_interval_max))
1128 return -ENOBUFS;
1129
1130 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1131 tcp->wake_payload_max))
1132 return -ENOBUFS;
1133
1134 nla_nest_end(msg, nl_tcp);
1135 return 0;
1136}
1137
3713b4e3 1138static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1139 struct cfg80211_registered_device *rdev,
b56cf720 1140 bool large)
55682965 1141{
3713b4e3 1142 struct nlattr *nl_wowlan;
55682965 1143
1b8ec87a 1144 if (!rdev->wiphy.wowlan)
3713b4e3 1145 return 0;
55682965 1146
3713b4e3
JB		 1147 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1148 if (!nl_wowlan)
1149 return -ENOBUFS;
9360ffd1 1150
1b8ec87a 1151 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1152 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1153 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1154 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1155 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1156 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1157 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1158 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1159 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1160 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1161 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1162 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1163 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1164 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1165 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1166 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1167 return -ENOBUFS;
9360ffd1 1168
1b8ec87a 1169 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1170 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1171 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1172 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1173 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1174 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1175 };
9360ffd1 1176
3713b4e3
JB		 1177 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1178 sizeof(pat), &pat))
1179 return -ENOBUFS;
1180 }
9360ffd1 1181
75453ccb
LC		 1182 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1183 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1184 rdev->wiphy.wowlan->max_nd_match_sets))
1185 return -ENOBUFS;
1186
1b8ec87a 1187 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1188 return -ENOBUFS;
1189
3713b4e3 1190 nla_nest_end(msg, nl_wowlan);
9360ffd1 1191
3713b4e3
JB		 1192 return 0;
1193}
1194#endif
9360ffd1 1195
be29b99a 1196static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1197 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1198{
1199 struct nl80211_coalesce_rule_support rule;
1200
1b8ec87a 1201 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1202 return 0;
1203
1b8ec87a
ZG		 1204 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1205 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1206 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1207 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1208 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1209 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1210
1211 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1212 return -ENOBUFS;
1213
1214 return 0;
1215}
1216
3713b4e3
JB		 1217static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1218 struct ieee80211_supported_band *sband)
1219{
1220 struct nlattr *nl_rates, *nl_rate;
1221 struct ieee80211_rate *rate;
1222 int i;
87bbbe22 1223
3713b4e3
JB		 1224 /* add HT info */
1225 if (sband->ht_cap.ht_supported &&
1226 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1227 sizeof(sband->ht_cap.mcs),
1228 &sband->ht_cap.mcs) ||
1229 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1230 sband->ht_cap.cap) ||
1231 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1232 sband->ht_cap.ampdu_factor) ||
1233 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1234 sband->ht_cap.ampdu_density)))
1235 return -ENOBUFS;
afe0cbf8 1236
3713b4e3
JB		 1237 /* add VHT info */
1238 if (sband->vht_cap.vht_supported &&
1239 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1240 sizeof(sband->vht_cap.vht_mcs),
1241 &sband->vht_cap.vht_mcs) ||
1242 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1243 sband->vht_cap.cap)))
1244 return -ENOBUFS;
f59ac048 1245
3713b4e3
JB		 1246 /* add bitrates */
1247 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1248 if (!nl_rates)
1249 return -ENOBUFS;
ee688b00 1250
3713b4e3
JB		 1251 for (i = 0; i < sband->n_bitrates; i++) {
1252 nl_rate = nla_nest_start(msg, i);
1253 if (!nl_rate)
1254 return -ENOBUFS;
ee688b00 1255
3713b4e3
JB		 1256 rate = &sband->bitrates[i];
1257 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1258 rate->bitrate))
1259 return -ENOBUFS;
1260 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1261 nla_put_flag(msg,
1262 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1263 return -ENOBUFS;
ee688b00 1264
3713b4e3
JB		 1265 nla_nest_end(msg, nl_rate);
1266 }
d51626df 1267
3713b4e3 1268 nla_nest_end(msg, nl_rates);
bf0c111e 1269
3713b4e3
JB		 1270 return 0;
1271}
ee688b00 1272
3713b4e3
JB		 1273static int
1274nl80211_send_mgmt_stypes(struct sk_buff *msg,
1275 const struct ieee80211_txrx_stypes *mgmt_stypes)
1276{
1277 u16 stypes;
1278 struct nlattr *nl_ftypes, *nl_ifs;
1279 enum nl80211_iftype ift;
1280 int i;
ee688b00 1281
3713b4e3
JB		 1282 if (!mgmt_stypes)
1283 return 0;
5dab3b8a 1284
3713b4e3
JB		 1285 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1286 if (!nl_ifs)
1287 return -ENOBUFS;
e2f367f2 1288
3713b4e3
JB		 1289 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1290 nl_ftypes = nla_nest_start(msg, ift);
1291 if (!nl_ftypes)
1292 return -ENOBUFS;
1293 i = 0;
1294 stypes = mgmt_stypes[ift].tx;
1295 while (stypes) {
1296 if ((stypes & 1) &&
1297 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1298 (i << 4) | IEEE80211_FTYPE_MGMT))
1299 return -ENOBUFS;
1300 stypes >>= 1;
1301 i++;
ee688b00 1302 }
3713b4e3
JB		 1303 nla_nest_end(msg, nl_ftypes);
1304 }
ee688b00 1305
3713b4e3 1306 nla_nest_end(msg, nl_ifs);
ee688b00 1307
3713b4e3
JB		 1308 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1309 if (!nl_ifs)
1310 return -ENOBUFS;
ee688b00 1311
3713b4e3
JB		 1312 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1313 nl_ftypes = nla_nest_start(msg, ift);
1314 if (!nl_ftypes)
1315 return -ENOBUFS;
1316 i = 0;
1317 stypes = mgmt_stypes[ift].rx;
1318 while (stypes) {
1319 if ((stypes & 1) &&
1320 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1321 (i << 4) | IEEE80211_FTYPE_MGMT))
1322 return -ENOBUFS;
1323 stypes >>= 1;
1324 i++;
1325 }
1326 nla_nest_end(msg, nl_ftypes);
1327 }
1328 nla_nest_end(msg, nl_ifs);
ee688b00 1329
3713b4e3
JB		 1330 return 0;
1331}
ee688b00 1332
1794899e
JB		 1333#define CMD(op, n) \
1334 do { \
1335 if (rdev->ops->op) { \
1336 i++; \
1337 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1338 goto nla_put_failure; \
1339 } \
1340 } while (0)
1341
1342static int nl80211_add_commands_unsplit(struct cfg80211_registered_device *rdev,
1343 struct sk_buff *msg)
1344{
1345 int i = 0;
1346
1347 /*
1348 * do *NOT* add anything into this function, new things need to be
1349 * advertised only to new versions of userspace that can deal with
1350 * the split (and they can't possibly care about new features...
1351 */
1352 CMD(add_virtual_intf, NEW_INTERFACE);
1353 CMD(change_virtual_intf, SET_INTERFACE);
1354 CMD(add_key, NEW_KEY);
1355 CMD(start_ap, START_AP);
1356 CMD(add_station, NEW_STATION);
1357 CMD(add_mpath, NEW_MPATH);
1358 CMD(update_mesh_config, SET_MESH_CONFIG);
1359 CMD(change_bss, SET_BSS);
1360 CMD(auth, AUTHENTICATE);
1361 CMD(assoc, ASSOCIATE);
1362 CMD(deauth, DEAUTHENTICATE);
1363 CMD(disassoc, DISASSOCIATE);
1364 CMD(join_ibss, JOIN_IBSS);
1365 CMD(join_mesh, JOIN_MESH);
1366 CMD(set_pmksa, SET_PMKSA);
1367 CMD(del_pmksa, DEL_PMKSA);
1368 CMD(flush_pmksa, FLUSH_PMKSA);
1369 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1370 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1371 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1372 CMD(mgmt_tx, FRAME);
1373 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1374 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1375 i++;
1376 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1377 goto nla_put_failure;
1378 }
1379 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1380 rdev->ops->join_mesh) {
1381 i++;
1382 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1383 goto nla_put_failure;
1384 }
1385 CMD(set_wds_peer, SET_WDS_PEER);
1386 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1387 CMD(tdls_mgmt, TDLS_MGMT);
1388 CMD(tdls_oper, TDLS_OPER);
1389 }
ca986ad9 1390 if (rdev->wiphy.max_sched_scan_reqs)
1794899e
JB		 1391 CMD(sched_scan_start, START_SCHED_SCAN);
1392 CMD(probe_client, PROBE_CLIENT);
1393 CMD(set_noack_map, SET_NOACK_MAP);
1394 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1395 i++;
1396 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1397 goto nla_put_failure;
1398 }
1399 CMD(start_p2p_device, START_P2P_DEVICE);
1400 CMD(set_mcast_rate, SET_MCAST_RATE);
1401#ifdef CONFIG_NL80211_TESTMODE
1402 CMD(testmode_cmd, TESTMODE);
1403#endif
1404
1405 if (rdev->ops->connect || rdev->ops->auth) {
1406 i++;
1407 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1408 goto nla_put_failure;
1409 }
1410
1411 if (rdev->ops->disconnect || rdev->ops->deauth) {
1412 i++;
1413 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1414 goto nla_put_failure;
1415 }
1416
1417 return i;
1418 nla_put_failure:
1419 return -ENOBUFS;
1420}
1421
86e8cf98
JB		 1422struct nl80211_dump_wiphy_state {
1423 s64 filter_wiphy;
1424 long start;
019ae3a9 1425 long split_start, band_start, chan_start, capa_start;
86e8cf98
JB		 1426 bool split;
1427};
1428
1b8ec87a 1429static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1430 enum nl80211_commands cmd,
3713b4e3 1431 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1432 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1433{
1434 void *hdr;
1435 struct nlattr *nl_bands, *nl_band;
1436 struct nlattr *nl_freqs, *nl_freq;
1437 struct nlattr *nl_cmds;
57fbcce3 1438 enum nl80211_band band;
3713b4e3
JB		 1439 struct ieee80211_channel *chan;
1440 int i;
1441 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1442 rdev->wiphy.mgmt_stypes;
fe1abafd 1443 u32 features;
ee688b00 1444
3bb20556 1445 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1446 if (!hdr)
1447 return -ENOBUFS;
ee688b00 1448
86e8cf98
JB		 1449 if (WARN_ON(!state))
1450 return -EINVAL;
ee688b00 1451
1b8ec87a 1452 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1453 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1454 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1455 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1456 cfg80211_rdev_list_generation))
8fdc621d
JB		 1457 goto nla_put_failure;
1458
3bb20556
JB		 1459 if (cmd != NL80211_CMD_NEW_WIPHY)
1460 goto finish;
1461
86e8cf98 1462 switch (state->split_start) {
3713b4e3
JB		 1463 case 0:
1464 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1465 rdev->wiphy.retry_short) ||
3713b4e3 1466 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1467 rdev->wiphy.retry_long) ||
3713b4e3 1468 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1469 rdev->wiphy.frag_threshold) ||
3713b4e3 1470 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1471 rdev->wiphy.rts_threshold) ||
3713b4e3 1472 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1473 rdev->wiphy.coverage_class) ||
3713b4e3 1474 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1475 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1476 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1477 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1478 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1479 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1480 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1481 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1482 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1483 rdev->wiphy.max_match_sets) ||
1484 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1485 rdev->wiphy.max_sched_scan_plans) ||
1486 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1487 rdev->wiphy.max_sched_scan_plan_interval) ||
1488 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1489 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1490 goto nla_put_failure;
3713b4e3 1491
1b8ec87a 1492 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1493 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1494 goto nla_put_failure;
1b8ec87a 1495 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1496 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1497 goto nla_put_failure;
1b8ec87a 1498 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1499 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1500 goto nla_put_failure;
1b8ec87a 1501 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1502 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1503 goto nla_put_failure;
1b8ec87a 1504 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1505 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1506 goto nla_put_failure;
1b8ec87a 1507 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1508 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1509 goto nla_put_failure;
86e8cf98
JB		 1510 state->split_start++;
1511 if (state->split)
3713b4e3
JB		 1512 break;
1513 case 1:
1514 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1515 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1516 rdev->wiphy.cipher_suites))
3713b4e3 1517 goto nla_put_failure;
4745fc09 1518
3713b4e3 1519 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1520 rdev->wiphy.max_num_pmkids))
3713b4e3 1521 goto nla_put_failure;
b23aa676 1522
1b8ec87a 1523 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1524 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1525 goto nla_put_failure;
b23aa676 1526
3713b4e3 1527 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1528 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1529 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1530 rdev->wiphy.available_antennas_rx))
9360ffd1 1531 goto nla_put_failure;
b23aa676 1532
1b8ec87a 1533 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1534 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1535 rdev->wiphy.probe_resp_offload))
3713b4e3 1536 goto nla_put_failure;
8fdc621d 1537
1b8ec87a
ZG		 1538 if ((rdev->wiphy.available_antennas_tx ||
1539 rdev->wiphy.available_antennas_rx) &&
1540 rdev->ops->get_antenna) {
3713b4e3
JB		 1541 u32 tx_ant = 0, rx_ant = 0;
1542 int res;
7a087e74 1543
1b8ec87a 1544 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1545 if (!res) {
1546 if (nla_put_u32(msg,
1547 NL80211_ATTR_WIPHY_ANTENNA_TX,
1548 tx_ant) ||
1549 nla_put_u32(msg,
1550 NL80211_ATTR_WIPHY_ANTENNA_RX,
1551 rx_ant))
1552 goto nla_put_failure;
1553 }
1554 }
a293911d 1555
86e8cf98
JB		 1556 state->split_start++;
1557 if (state->split)
3713b4e3
JB		 1558 break;
1559 case 2:
1560 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1561 rdev->wiphy.interface_modes))
3713b4e3 1562 goto nla_put_failure;
86e8cf98
JB		 1563 state->split_start++;
1564 if (state->split)
3713b4e3
JB		 1565 break;
1566 case 3:
1567 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1568 if (!nl_bands)
1569 goto nla_put_failure;
f7ca38df 1570
86e8cf98 1571 for (band = state->band_start;
57fbcce3 1572 band < NUM_NL80211_BANDS; band++) {
3713b4e3 1573 struct ieee80211_supported_band *sband;
2e161f78 1574
1b8ec87a 1575 sband = rdev->wiphy.bands[band];
2e161f78 1576
3713b4e3
JB		 1577 if (!sband)
1578 continue;
1579
1580 nl_band = nla_nest_start(msg, band);
1581 if (!nl_band)
2e161f78 1582 goto nla_put_failure;
3713b4e3 1583
86e8cf98 1584 switch (state->chan_start) {
3713b4e3
JB		 1585 case 0:
1586 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1587 goto nla_put_failure;
86e8cf98
JB		 1588 state->chan_start++;
1589 if (state->split)
3713b4e3
JB		 1590 break;
1591 default:
1592 /* add frequencies */
1593 nl_freqs = nla_nest_start(
1594 msg, NL80211_BAND_ATTR_FREQS);
1595 if (!nl_freqs)
1596 goto nla_put_failure;
1597
86e8cf98 1598 for (i = state->chan_start - 1;
3713b4e3
JB		 1599 i < sband->n_channels;
1600 i++) {
1601 nl_freq = nla_nest_start(msg, i);
1602 if (!nl_freq)
1603 goto nla_put_failure;
1604
1605 chan = &sband->channels[i];
1606
86e8cf98
JB		 1607 if (nl80211_msg_put_channel(
1608 msg, chan,
1609 state->split))
3713b4e3
JB		 1610 goto nla_put_failure;
1611
1612 nla_nest_end(msg, nl_freq);
86e8cf98 1613 if (state->split)
3713b4e3
JB		 1614 break;
1615 }
1616 if (i < sband->n_channels)
86e8cf98 1617 state->chan_start = i + 2;
3713b4e3 1618 else
86e8cf98 1619 state->chan_start = 0;
3713b4e3
JB		 1620 nla_nest_end(msg, nl_freqs);
1621 }
1622
1623 nla_nest_end(msg, nl_band);
1624
86e8cf98 1625 if (state->split) {
3713b4e3 1626 /* start again here */
86e8cf98 1627 if (state->chan_start)
3713b4e3
JB		 1628 band--;
1629 break;
2e161f78 1630 }
2e161f78 1631 }
3713b4e3 1632 nla_nest_end(msg, nl_bands);
2e161f78 1633
57fbcce3 1634 if (band < NUM_NL80211_BANDS)
86e8cf98 1635 state->band_start = band + 1;
3713b4e3 1636 else
86e8cf98 1637 state->band_start = 0;
74b70a4e 1638
3713b4e3 1639 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1640 if (state->band_start == 0 && state->chan_start == 0)
1641 state->split_start++;
1642 if (state->split)
3713b4e3
JB		 1643 break;
1644 case 4:
1645 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1646 if (!nl_cmds)
2e161f78
JB		 1647 goto nla_put_failure;
1648
1794899e
JB		 1649 i = nl80211_add_commands_unsplit(rdev, msg);
1650 if (i < 0)
1651 goto nla_put_failure;
86e8cf98 1652 if (state->split) {
5de17984
AS		 1653 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1654 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1655 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1656 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1657 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1658 if (rdev->wiphy.features &
1659 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1660 CMD(add_tx_ts, ADD_TX_TS);
ce0ce13a 1661 CMD(set_multicast_to_unicast, SET_MULTICAST_TO_UNICAST);
088e8df8 1662 CMD(update_connect_params, UPDATE_CONNECT_PARAMS);
5de17984 1663 }
3713b4e3 1664#undef CMD
ff1b6e69 1665
3713b4e3 1666 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1667 state->split_start++;
1668 if (state->split)
3713b4e3
JB		 1669 break;
1670 case 5:
1b8ec87a
ZG		 1671 if (rdev->ops->remain_on_channel &&
1672 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1673 nla_put_u32(msg,
1674 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1675 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1676 goto nla_put_failure;
1677
1b8ec87a 1678 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1679 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1680 goto nla_put_failure;
1681
1682 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1683 goto nla_put_failure;
86e8cf98
JB		 1684 state->split_start++;
1685 if (state->split)
3713b4e3
JB		 1686 break;
1687 case 6:
1688#ifdef CONFIG_PM
1b8ec87a 1689 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1690 goto nla_put_failure;
86e8cf98
JB		 1691 state->split_start++;
1692 if (state->split)
3713b4e3
JB		 1693 break;
1694#else
86e8cf98 1695 state->split_start++;
dfb89c56 1696#endif
3713b4e3
JB		 1697 case 7:
1698 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1699 rdev->wiphy.software_iftypes))
3713b4e3 1700 goto nla_put_failure;
ff1b6e69 1701
1b8ec87a 1702 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1703 state->split))
3713b4e3 1704 goto nla_put_failure;
7527a782 1705
86e8cf98
JB		 1706 state->split_start++;
1707 if (state->split)
3713b4e3
JB		 1708 break;
1709 case 8:
1b8ec87a 1710 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1711 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1712 rdev->wiphy.ap_sme_capa))
3713b4e3 1713 goto nla_put_failure;
7527a782 1714
1b8ec87a 1715 features = rdev->wiphy.features;
fe1abafd
JB		 1716 /*
1717 * We can only add the per-channel limit information if the
1718 * dump is split, otherwise it makes it too big. Therefore
1719 * only advertise it in that case.
1720 */
86e8cf98 1721 if (state->split)
fe1abafd
JB		 1722 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1723 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1724 goto nla_put_failure;
562a7480 1725
1b8ec87a 1726 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1727 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1728 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1729 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1730 goto nla_put_failure;
1f074bd8 1731
1b8ec87a
ZG		 1732 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1733 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1734 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1735 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1736 goto nla_put_failure;
7e7c8926 1737
3713b4e3
JB		 1738 /*
1739 * Any information below this point is only available to
1740 * applications that can deal with it being split. This
1741 * helps ensure that newly added capabilities don't break
1742 * older tools by overrunning their buffers.
1743 *
1744 * We still increment split_start so that in the split
1745 * case we'll continue with more data in the next round,
1746 * but break unconditionally so unsplit data stops here.
1747 */
86e8cf98 1748 state->split_start++;
3713b4e3
JB		 1749 break;
1750 case 9:
1b8ec87a 1751 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1752 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1753 rdev->wiphy.extended_capabilities_len,
1754 rdev->wiphy.extended_capabilities) ||
fe1abafd 1755 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1756 rdev->wiphy.extended_capabilities_len,
1757 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1758 goto nla_put_failure;
a50df0c4 1759
1b8ec87a 1760 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1761 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1762 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1763 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1764 goto nla_put_failure;
1765
be29b99a
AK		 1766 state->split_start++;
1767 break;
1768 case 10:
1b8ec87a 1769 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1770 goto nla_put_failure;
1771
1b8ec87a 1772 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1773 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1774 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1775 goto nla_put_failure;
b43504cf 1776
1b8ec87a 1777 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1778 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1779 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1780 goto nla_put_failure;
1781
ad7e718c
JB		 1782 state->split_start++;
1783 break;
1784 case 11:
1b8ec87a 1785 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1786 const struct nl80211_vendor_cmd_info *info;
1787 struct nlattr *nested;
1788
1789 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1790 if (!nested)
1791 goto nla_put_failure;
1792
1b8ec87a
ZG		 1793 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1794 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1795 if (nla_put(msg, i + 1, sizeof(*info), info))
1796 goto nla_put_failure;
1797 }
1798 nla_nest_end(msg, nested);
1799 }
1800
1b8ec87a 1801 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1802 const struct nl80211_vendor_cmd_info *info;
1803 struct nlattr *nested;
ad7e718c 1804
567ffc35
JB		 1805 nested = nla_nest_start(msg,
1806 NL80211_ATTR_VENDOR_EVENTS);
1807 if (!nested)
ad7e718c 1808 goto nla_put_failure;
567ffc35 1809
1b8ec87a
ZG		 1810 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1811 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1812 if (nla_put(msg, i + 1, sizeof(*info), info))
1813 goto nla_put_failure;
1814 }
1815 nla_nest_end(msg, nested);
1816 }
9a774c78
AO		 1817 state->split_start++;
1818 break;
1819 case 12:
1820 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1821 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1822 rdev->wiphy.max_num_csa_counters))
1823 goto nla_put_failure;
01e0daa4 1824
1bdd716c
AN		 1825 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1826 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1827 goto nla_put_failure;
1828
ca986ad9
AVS		 1829 if (rdev->wiphy.max_sched_scan_reqs &&
1830 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_MAX_REQS,
1831 rdev->wiphy.max_sched_scan_reqs))
1832 goto nla_put_failure;
1833
d75bb06b
GKS		 1834 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1835 sizeof(rdev->wiphy.ext_features),
1836 rdev->wiphy.ext_features))
1837 goto nla_put_failure;
1838
38de03d2
AS		 1839 if (rdev->wiphy.bss_select_support) {
1840 struct nlattr *nested;
1841 u32 bss_select_support = rdev->wiphy.bss_select_support;
1842
1843 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1844 if (!nested)
1845 goto nla_put_failure;
1846
1847 i = 0;
1848 while (bss_select_support) {
1849 if ((bss_select_support & 1) &&
1850 nla_put_flag(msg, i))
1851 goto nla_put_failure;
1852 i++;
1853 bss_select_support >>= 1;
1854 }
1855 nla_nest_end(msg, nested);
1856 }
1857
019ae3a9
KV		 1858 state->split_start++;
1859 break;
1860 case 13:
1861 if (rdev->wiphy.num_iftype_ext_capab &&
1862 rdev->wiphy.iftype_ext_capab) {
1863 struct nlattr *nested_ext_capab, *nested;
1864
1865 nested = nla_nest_start(msg,
1866 NL80211_ATTR_IFTYPE_EXT_CAPA);
1867 if (!nested)
1868 goto nla_put_failure;
1869
1870 for (i = state->capa_start;
1871 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1872 const struct wiphy_iftype_ext_capab *capab;
1873
1874 capab = &rdev->wiphy.iftype_ext_capab[i];
1875
1876 nested_ext_capab = nla_nest_start(msg, i);
1877 if (!nested_ext_capab ||
1878 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1879 capab->iftype) ||
1880 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1881 capab->extended_capabilities_len,
1882 capab->extended_capabilities) ||
1883 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1884 capab->extended_capabilities_len,
1885 capab->extended_capabilities_mask))
1886 goto nla_put_failure;
1887
1888 nla_nest_end(msg, nested_ext_capab);
1889 if (state->split)
1890 break;
1891 }
1892 nla_nest_end(msg, nested);
1893 if (i < rdev->wiphy.num_iftype_ext_capab) {
1894 state->capa_start = i + 1;
1895 break;
1896 }
1897 }
1898
8585989d
LC		 1899 if (nla_put_u32(msg, NL80211_ATTR_BANDS,
1900 rdev->wiphy.nan_supported_bands))
1901 goto nla_put_failure;
1902
3713b4e3 1903 /* done */
86e8cf98 1904 state->split_start = 0;
3713b4e3
JB		 1905 break;
1906 }
3bb20556 1907 finish:
053c095a
JB		 1908 genlmsg_end(msg, hdr);
1909 return 0;
55682965
JB		 1910
1911 nla_put_failure:
bc3ed28c
TG		 1912 genlmsg_cancel(msg, hdr);
1913 return -EMSGSIZE;
55682965
JB		 1914}
1915
86e8cf98
JB		 1916static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1917 struct netlink_callback *cb,
1918 struct nl80211_dump_wiphy_state *state)
1919{
c90c39da 1920 struct nlattr **tb = genl_family_attrbuf(&nl80211_fam);
fceb6435
JB		 1921 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, tb,
1922 nl80211_fam.maxattr, nl80211_policy, NULL);
86e8cf98
JB		 1923 /* ignore parse errors for backward compatibility */
1924 if (ret)
1925 return 0;
1926
1927 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1928 if (tb[NL80211_ATTR_WIPHY])
1929 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1930 if (tb[NL80211_ATTR_WDEV])
1931 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1932 if (tb[NL80211_ATTR_IFINDEX]) {
1933 struct net_device *netdev;
1934 struct cfg80211_registered_device *rdev;
1935 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1936
7f2b8562 1937 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1938 if (!netdev)
1939 return -ENODEV;
1940 if (netdev->ieee80211_ptr) {
f26cbf40 1941 rdev = wiphy_to_rdev(
86e8cf98
JB		 1942 netdev->ieee80211_ptr->wiphy);
1943 state->filter_wiphy = rdev->wiphy_idx;
1944 }
86e8cf98
JB		 1945 }
1946
1947 return 0;
1948}
1949
55682965
JB		 1950static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1951{
645e77de 1952 int idx = 0, ret;
86e8cf98 1953 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1954 struct cfg80211_registered_device *rdev;
3a5a423b 1955
5fe231e8 1956 rtnl_lock();
86e8cf98
JB		 1957 if (!state) {
1958 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1959 if (!state) {
1960 rtnl_unlock();
86e8cf98 1961 return -ENOMEM;
3713b4e3 1962 }
86e8cf98
JB		 1963 state->filter_wiphy = -1;
1964 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1965 if (ret) {
1966 kfree(state);
1967 rtnl_unlock();
1968 return ret;
3713b4e3 1969 }
86e8cf98 1970 cb->args[0] = (long)state;
3713b4e3
JB		 1971 }
1972
1b8ec87a
ZG		 1973 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1974 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1975 continue;
86e8cf98 1976 if (++idx <= state->start)
55682965 1977 continue;
86e8cf98 1978 if (state->filter_wiphy != -1 &&
1b8ec87a 1979 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1980 continue;
1981 /* attempt to fit multiple wiphy data chunks into the skb */
1982 do {
3bb20556
JB		 1983 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1984 skb,
3713b4e3
JB		 1985 NETLINK_CB(cb->skb).portid,
1986 cb->nlh->nlmsg_seq,
86e8cf98 1987 NLM_F_MULTI, state);
3713b4e3
JB		 1988 if (ret < 0) {
1989 /*
1990 * If sending the wiphy data didn't fit (ENOBUFS
1991 * or EMSGSIZE returned), this SKB is still
1992 * empty (so it's not too big because another
1993 * wiphy dataset is already in the skb) and
1994 * we've not tried to adjust the dump allocation
1995 * yet ... then adjust the alloc size to be
1996 * bigger, and return 1 but with the empty skb.
1997 * This results in an empty message being RX'ed
1998 * in userspace, but that is ignored.
1999 *
2000 * We can then retry with the larger buffer.
2001 */
2002 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 2003 !skb->len && !state->split &&
3713b4e3
JB		 2004 cb->min_dump_alloc < 4096) {
2005 cb->min_dump_alloc = 4096;
f12cb289 2006 state->split_start = 0;
d98cae64 2007 rtnl_unlock();
3713b4e3
JB		 2008 return 1;
2009 }
2010 idx--;
2011 break;
645e77de 2012 }
86e8cf98 2013 } while (state->split_start > 0);
3713b4e3 2014 break;
55682965 2015 }
5fe231e8 2016 rtnl_unlock();
55682965 2017
86e8cf98 2018 state->start = idx;
55682965
JB		 2019
2020 return skb->len;
2021}
2022
86e8cf98
JB		 2023static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
2024{
2025 kfree((void *)cb->args[0]);
2026 return 0;
2027}
2028
55682965
JB		 2029static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
2030{
2031 struct sk_buff *msg;
1b8ec87a 2032 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 2033 struct nl80211_dump_wiphy_state state = {};
55682965 2034
645e77de 2035 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 2036 if (!msg)
4c476991 2037 return -ENOMEM;
55682965 2038
3bb20556
JB		 2039 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
2040 info->snd_portid, info->snd_seq, 0,
86e8cf98 2041 &state) < 0) {
4c476991
JB		 2042 nlmsg_free(msg);
2043 return -ENOBUFS;
2044 }
55682965 2045
134e6375 2046 return genlmsg_reply(msg, info);
55682965
JB		 2047}
2048
31888487
JM		 2049static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
2050 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
2051 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
2052 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
2053 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
2054 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
2055};
2056
2057static int parse_txq_params(struct nlattr *tb[],
2058 struct ieee80211_txq_params *txq_params)
2059{
c7cb043b
DW		 2060 u8 ac;
2061
a3304b0a 2062 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 2063 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
2064 !tb[NL80211_TXQ_ATTR_AIFS])
2065 return -EINVAL;
2066
c7cb043b 2067 ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 2068 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
2069 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
2070 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
2071 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
2072
c7cb043b 2073 if (ac >= NL80211_NUM_ACS)
a3304b0a 2074 return -EINVAL;
c7cb043b 2075 txq_params->ac = array_index_nospec(ac, NL80211_NUM_ACS);
31888487
JM		 2076 return 0;
2077}
2078
f444de05
JB		 2079static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2080{
2081 /*
cc1d2806
JB		 2082 * You can only set the channel explicitly for WDS interfaces,
2083 * all others have their channel managed via their respective
2084 * "establish a connection" command (connect, join, ...)
2085 *
2086 * For AP/GO and mesh mode, the channel can be set with the
2087 * channel userspace API, but is only stored and passed to the
2088 * low-level driver when the AP starts or the mesh is joined.
2089 * This is for backward compatibility, userspace can also give
2090 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 2091 *
2092 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 2093 * whatever else is going on, so they have their own special
2094 * operation to set the monitor channel if possible.
f444de05
JB		 2095 */
2096 return !wdev ||
2097 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 2098 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 2099 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2100 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 2101}
2102
683b6d3b
JB		 2103static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2104 struct genl_info *info,
2105 struct cfg80211_chan_def *chandef)
2106{
dbeca2ea 2107 u32 control_freq;
683b6d3b
JB		 2108
2109 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2110 return -EINVAL;
2111
2112 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2113
2114 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 2115 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2116 chandef->center_freq1 = control_freq;
2117 chandef->center_freq2 = 0;
683b6d3b
JB		 2118
2119 /* Primary channel not allowed */
2120 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2121 return -EINVAL;
2122
3d9d1d66
JB		 2123 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2124 enum nl80211_channel_type chantype;
2125
2126 chantype = nla_get_u32(
2127 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2128
2129 switch (chantype) {
2130 case NL80211_CHAN_NO_HT:
2131 case NL80211_CHAN_HT20:
2132 case NL80211_CHAN_HT40PLUS:
2133 case NL80211_CHAN_HT40MINUS:
2134 cfg80211_chandef_create(chandef, chandef->chan,
2135 chantype);
ffa4629e
TM		 2136 /* user input for center_freq is incorrect */
2137 if (info->attrs[NL80211_ATTR_CENTER_FREQ1] &&
2138 chandef->center_freq1 != nla_get_u32(
2139 info->attrs[NL80211_ATTR_CENTER_FREQ1]))
2140 return -EINVAL;
2141 /* center_freq2 must be zero */
2142 if (info->attrs[NL80211_ATTR_CENTER_FREQ2] &&
2143 nla_get_u32(info->attrs[NL80211_ATTR_CENTER_FREQ2]))
2144 return -EINVAL;
3d9d1d66
JB		 2145 break;
2146 default:
2147 return -EINVAL;
2148 }
2149 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2150 chandef->width =
2151 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2152 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2153 chandef->center_freq1 =
2154 nla_get_u32(
2155 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2156 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2157 chandef->center_freq2 =
2158 nla_get_u32(
2159 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2160 }
2161
9f5e8f6e 2162 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 2163 return -EINVAL;
2164
9f5e8f6e
JB		 2165 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2166 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 2167 return -EINVAL;
2168
2f301ab2
SW		 2169 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2170 chandef->width == NL80211_CHAN_WIDTH_10) &&
2171 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2172 return -EINVAL;
2173
683b6d3b
JB		 2174 return 0;
2175}
2176
f444de05 2177static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 2178 struct net_device *dev,
f444de05
JB		 2179 struct genl_info *info)
2180{
683b6d3b 2181 struct cfg80211_chan_def chandef;
f444de05 2182 int result;
e8c9bd5b 2183 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2184 struct wireless_dev *wdev = NULL;
e8c9bd5b 2185
e16821bc
JM		 2186 if (dev)
2187 wdev = dev->ieee80211_ptr;
f444de05
JB		 2188 if (!nl80211_can_set_dev_channel(wdev))
2189 return -EOPNOTSUPP;
e16821bc
JM		 2190 if (wdev)
2191 iftype = wdev->iftype;
f444de05 2192
683b6d3b
JB		 2193 result = nl80211_parse_chandef(rdev, info, &chandef);
2194 if (result)
2195 return result;
f444de05 2196
e8c9bd5b 2197 switch (iftype) {
aa430da4
JB		 2198 case NL80211_IFTYPE_AP:
2199 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2200 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2201 iftype)) {
aa430da4
JB		 2202 result = -EINVAL;
2203 break;
2204 }
e16821bc
JM		 2205 if (wdev->beacon_interval) {
2206 if (!dev || !rdev->ops->set_ap_chanwidth ||
2207 !(rdev->wiphy.features &
2208 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2209 result = -EBUSY;
2210 break;
2211 }
2212
2213 /* Only allow dynamic channel width changes */
2214 if (chandef.chan != wdev->preset_chandef.chan) {
2215 result = -EBUSY;
2216 break;
2217 }
2218 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2219 if (result)
2220 break;
2221 }
683b6d3b 2222 wdev->preset_chandef = chandef;
aa430da4
JB		 2223 result = 0;
2224 break;
cc1d2806 2225 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2226 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2227 break;
e8c9bd5b 2228 case NL80211_IFTYPE_MONITOR:
683b6d3b 2229 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2230 break;
aa430da4 2231 default:
e8c9bd5b 2232 result = -EINVAL;
f444de05 2233 }
f444de05
JB		 2234
2235 return result;
2236}
2237
2238static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2239{
4c476991
JB		 2240 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2241 struct net_device *netdev = info->user_ptr[1];
f444de05 2242
e16821bc 2243 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2244}
2245
e8347eba
BJ		 2246static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2247{
43b19952
JB		 2248 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2249 struct net_device *dev = info->user_ptr[1];
2250 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2251 const u8 *bssid;
e8347eba
BJ		 2252
2253 if (!info->attrs[NL80211_ATTR_MAC])
2254 return -EINVAL;
2255
43b19952
JB		 2256 if (netif_running(dev))
2257 return -EBUSY;
e8347eba 2258
43b19952
JB		 2259 if (!rdev->ops->set_wds_peer)
2260 return -EOPNOTSUPP;
e8347eba 2261
43b19952
JB		 2262 if (wdev->iftype != NL80211_IFTYPE_WDS)
2263 return -EOPNOTSUPP;
e8347eba
BJ		 2264
2265 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2266 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2267}
2268
55682965
JB		 2269static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2270{
2271 struct cfg80211_registered_device *rdev;
f444de05
JB		 2272 struct net_device *netdev = NULL;
2273 struct wireless_dev *wdev;
a1e567c8 2274 int result = 0, rem_txq_params = 0;
31888487 2275 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2276 u32 changed;
2277 u8 retry_short = 0, retry_long = 0;
2278 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2279 u8 coverage_class = 0;
55682965 2280
5fe231e8
JB		 2281 ASSERT_RTNL();
2282
f444de05
JB		 2283 /*
2284 * Try to find the wiphy and netdev. Normally this
2285 * function shouldn't need the netdev, but this is
2286 * done for backward compatibility -- previously
2287 * setting the channel was done per wiphy, but now
2288 * it is per netdev. Previous userland like hostapd
2289 * also passed a netdev to set_wiphy, so that it is
2290 * possible to let that go to the right netdev!
2291 */
4bbf4d56 2292
f444de05
JB		 2293 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2294 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2295
7f2b8562 2296 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2297 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2298 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2299 else
f444de05 2300 netdev = NULL;
4bbf4d56
JB		 2301 }
2302
f444de05 2303 if (!netdev) {
878d9ec7
JB		 2304 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2305 info->attrs);
5fe231e8 2306 if (IS_ERR(rdev))
4c476991 2307 return PTR_ERR(rdev);
f444de05
JB		 2308 wdev = NULL;
2309 netdev = NULL;
2310 result = 0;
71fe96bf 2311 } else
f444de05 2312 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2313
2314 /*
2315 * end workaround code, by now the rdev is available
2316 * and locked, and wdev may or may not be NULL.
2317 */
4bbf4d56
JB		 2318
2319 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2320 result = cfg80211_dev_rename(
2321 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2322
4bbf4d56 2323 if (result)
7f2b8562 2324 return result;
31888487
JM		 2325
2326 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2327 struct ieee80211_txq_params txq_params;
2328 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2329
7f2b8562
YX		 2330 if (!rdev->ops->set_txq_params)
2331 return -EOPNOTSUPP;
31888487 2332
7f2b8562
YX		 2333 if (!netdev)
2334 return -EINVAL;
f70f01c2 2335
133a3ff2 2336 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2337 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2338 return -EINVAL;
133a3ff2 2339
7f2b8562
YX		 2340 if (!netif_running(netdev))
2341 return -ENETDOWN;
2b5f8b0b 2342
31888487
JM		 2343 nla_for_each_nested(nl_txq_params,
2344 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2345 rem_txq_params) {
bfe2c7b1
JB		 2346 result = nla_parse_nested(tb, NL80211_TXQ_ATTR_MAX,
2347 nl_txq_params,
fe52145f
JB		 2348 txq_params_policy,
2349 info->extack);
ae811e21
JB		 2350 if (result)
2351 return result;
31888487
JM		 2352 result = parse_txq_params(tb, &txq_params);
2353 if (result)
7f2b8562 2354 return result;
31888487 2355
e35e4d28
HG		 2356 result = rdev_set_txq_params(rdev, netdev,
2357 &txq_params);
31888487 2358 if (result)
7f2b8562 2359 return result;
31888487
JM		 2360 }
2361 }
55682965 2362
72bdcf34 2363 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2364 result = __nl80211_set_channel(
2365 rdev,
2366 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2367 info);
72bdcf34 2368 if (result)
7f2b8562 2369 return result;
72bdcf34
JM		 2370 }
2371
98d2ff8b 2372 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2373 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2374 enum nl80211_tx_power_setting type;
2375 int idx, mbm = 0;
2376
c8442118
JB		 2377 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2378 txp_wdev = NULL;
2379
7f2b8562
YX		 2380 if (!rdev->ops->set_tx_power)
2381 return -EOPNOTSUPP;
98d2ff8b
JO		 2382
2383 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2384 type = nla_get_u32(info->attrs[idx]);
2385
2386 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2387 (type != NL80211_TX_POWER_AUTOMATIC))
2388 return -EINVAL;
98d2ff8b
JO		 2389
2390 if (type != NL80211_TX_POWER_AUTOMATIC) {
2391 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2392 mbm = nla_get_u32(info->attrs[idx]);
2393 }
2394
c8442118 2395 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2396 if (result)
7f2b8562 2397 return result;
98d2ff8b
JO		 2398 }
2399
afe0cbf8
BR		 2400 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2401 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2402 u32 tx_ant, rx_ant;
7a087e74 2403
7f531e03
BR		 2404 if ((!rdev->wiphy.available_antennas_tx &&
2405 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2406 !rdev->ops->set_antenna)
2407 return -EOPNOTSUPP;
afe0cbf8
BR		 2408
2409 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2410 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2411
a7ffac95 2412 /* reject antenna configurations which don't match the
7f531e03
BR		 2413 * available antenna masks, except for the "all" mask */
2414 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2415 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2416 return -EINVAL;
a7ffac95 2417
7f531e03
BR		 2418 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2419 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2420
e35e4d28 2421 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2422 if (result)
7f2b8562 2423 return result;
afe0cbf8
BR		 2424 }
2425
b9a5f8ca
JM		 2426 changed = 0;
2427
2428 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2429 retry_short = nla_get_u8(
2430 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2431 if (retry_short == 0)
2432 return -EINVAL;
2433
b9a5f8ca
JM		 2434 changed |= WIPHY_PARAM_RETRY_SHORT;
2435 }
2436
2437 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2438 retry_long = nla_get_u8(
2439 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2440 if (retry_long == 0)
2441 return -EINVAL;
2442
b9a5f8ca
JM		 2443 changed |= WIPHY_PARAM_RETRY_LONG;
2444 }
2445
2446 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2447 frag_threshold = nla_get_u32(
2448 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2449 if (frag_threshold < 256)
2450 return -EINVAL;
2451
b9a5f8ca
JM		 2452 if (frag_threshold != (u32) -1) {
2453 /*
2454 * Fragments (apart from the last one) are required to
2455 * have even length. Make the fragmentation code
2456 * simpler by stripping LSB should someone try to use
2457 * odd threshold value.
2458 */
2459 frag_threshold &= ~0x1;
2460 }
2461 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2462 }
2463
2464 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2465 rts_threshold = nla_get_u32(
2466 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2467 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2468 }
2469
81077e82 2470 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2471 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2472 return -EINVAL;
2473
81077e82
LT		 2474 coverage_class = nla_get_u8(
2475 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2476 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2477 }
2478
3057dbfd
LB		 2479 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2480 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2481 return -EOPNOTSUPP;
2482
2483 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2484 }
2485
b9a5f8ca
JM		 2486 if (changed) {
2487 u8 old_retry_short, old_retry_long;
2488 u32 old_frag_threshold, old_rts_threshold;
81077e82 2489 u8 old_coverage_class;
b9a5f8ca 2490
7f2b8562
YX		 2491 if (!rdev->ops->set_wiphy_params)
2492 return -EOPNOTSUPP;
b9a5f8ca
JM		 2493
2494 old_retry_short = rdev->wiphy.retry_short;
2495 old_retry_long = rdev->wiphy.retry_long;
2496 old_frag_threshold = rdev->wiphy.frag_threshold;
2497 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2498 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2499
2500 if (changed & WIPHY_PARAM_RETRY_SHORT)
2501 rdev->wiphy.retry_short = retry_short;
2502 if (changed & WIPHY_PARAM_RETRY_LONG)
2503 rdev->wiphy.retry_long = retry_long;
2504 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2505 rdev->wiphy.frag_threshold = frag_threshold;
2506 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2507 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2508 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2509 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2510
e35e4d28 2511 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2512 if (result) {
2513 rdev->wiphy.retry_short = old_retry_short;
2514 rdev->wiphy.retry_long = old_retry_long;
2515 rdev->wiphy.frag_threshold = old_frag_threshold;
2516 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2517 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2518 return result;
b9a5f8ca
JM		 2519 }
2520 }
7f2b8562 2521 return 0;
55682965
JB		 2522}
2523
71bbc994
JB		 2524static inline u64 wdev_id(struct wireless_dev *wdev)
2525{
2526 return (u64)wdev->identifier |
f26cbf40 2527 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2528}
55682965 2529
683b6d3b 2530static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2531 const struct cfg80211_chan_def *chandef)
683b6d3b 2532{
601555cd
JB		 2533 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2534 return -EINVAL;
3d9d1d66 2535
683b6d3b
JB		 2536 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2537 chandef->chan->center_freq))
2538 return -ENOBUFS;
3d9d1d66
JB		 2539 switch (chandef->width) {
2540 case NL80211_CHAN_WIDTH_20_NOHT:
2541 case NL80211_CHAN_WIDTH_20:
2542 case NL80211_CHAN_WIDTH_40:
2543 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2544 cfg80211_get_chandef_type(chandef)))
2545 return -ENOBUFS;
2546 break;
2547 default:
2548 break;
2549 }
2550 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2551 return -ENOBUFS;
2552 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2553 return -ENOBUFS;
2554 if (chandef->center_freq2 &&
2555 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2556 return -ENOBUFS;
2557 return 0;
2558}
2559
15e47304 2560static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2561 struct cfg80211_registered_device *rdev,
8f894be2 2562 struct wireless_dev *wdev, bool removal)
55682965 2563{
72fb2abc 2564 struct net_device *dev = wdev->netdev;
8f894be2 2565 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2566 void *hdr;
2567
8f894be2
TB		 2568 if (removal)
2569 cmd = NL80211_CMD_DEL_INTERFACE;
2570
2571 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2572 if (!hdr)
2573 return -1;
2574
72fb2abc
JB		 2575 if (dev &&
2576 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2577 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2578 goto nla_put_failure;
2579
2580 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2581 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2dad624e
ND		 2582 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2583 NL80211_ATTR_PAD) ||
98104fde 2584 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2585 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2586 rdev->devlist_generation ^
2587 (cfg80211_rdev_list_generation << 2)))
2588 goto nla_put_failure;
f5ea9120 2589
5b7ccaf3 2590 if (rdev->ops->get_channel) {
683b6d3b
JB		 2591 int ret;
2592 struct cfg80211_chan_def chandef;
2593
2594 ret = rdev_get_channel(rdev, wdev, &chandef);
2595 if (ret == 0) {
2596 if (nl80211_send_chandef(msg, &chandef))
2597 goto nla_put_failure;
2598 }
d91df0e3
PF		 2599 }
2600
d55d0d59
RM		 2601 if (rdev->ops->get_tx_power) {
2602 int dbm, ret;
2603
2604 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2605 if (ret == 0 &&
2606 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2607 DBM_TO_MBM(dbm)))
2608 goto nla_put_failure;
2609 }
2610
44905265
JB		 2611 wdev_lock(wdev);
2612 switch (wdev->iftype) {
2613 case NL80211_IFTYPE_AP:
2614 if (wdev->ssid_len &&
2615 nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
4564b187 2616 goto nla_put_failure_locked;
44905265
JB		 2617 break;
2618 case NL80211_IFTYPE_STATION:
2619 case NL80211_IFTYPE_P2P_CLIENT:
2620 case NL80211_IFTYPE_ADHOC: {
2621 const u8 *ssid_ie;
2622 if (!wdev->current_bss)
2623 break;
7a94b8c2 2624 rcu_read_lock();
44905265
JB		 2625 ssid_ie = ieee80211_bss_get_ie(&wdev->current_bss->pub,
2626 WLAN_EID_SSID);
7a94b8c2
DB		 2627 if (ssid_ie &&
2628 nla_put(msg, NL80211_ATTR_SSID, ssid_ie[1], ssid_ie + 2))
2629 goto nla_put_failure_rcu_locked;
2630 rcu_read_unlock();
44905265
JB		 2631 break;
2632 }
2633 default:
2634 /* nothing */
2635 break;
b84e7a05 2636 }
44905265 2637 wdev_unlock(wdev);
b84e7a05 2638
053c095a
JB		 2639 genlmsg_end(msg, hdr);
2640 return 0;
55682965 2641
7a94b8c2
DB		 2642 nla_put_failure_rcu_locked:
2643 rcu_read_unlock();
4564b187
JB		 2644 nla_put_failure_locked:
2645 wdev_unlock(wdev);
55682965 2646 nla_put_failure:
bc3ed28c
TG		 2647 genlmsg_cancel(msg, hdr);
2648 return -EMSGSIZE;
55682965
JB		 2649}
2650
2651static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2652{
2653 int wp_idx = 0;
2654 int if_idx = 0;
2655 int wp_start = cb->args[0];
2656 int if_start = cb->args[1];
b7fb44da 2657 int filter_wiphy = -1;
f5ea9120 2658 struct cfg80211_registered_device *rdev;
55682965 2659 struct wireless_dev *wdev;
ea90e0dc 2660 int ret;
55682965 2661
5fe231e8 2662 rtnl_lock();
b7fb44da
DK		 2663 if (!cb->args[2]) {
2664 struct nl80211_dump_wiphy_state state = {
2665 .filter_wiphy = -1,
2666 };
b7fb44da
DK		 2667
2668 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2669 if (ret)
ea90e0dc 2670 goto out_unlock;
b7fb44da
DK		 2671
2672 filter_wiphy = state.filter_wiphy;
2673
2674 /*
2675 * if filtering, set cb->args[2] to +1 since 0 is the default
2676 * value needed to determine that parsing is necessary.
2677 */
2678 if (filter_wiphy >= 0)
2679 cb->args[2] = filter_wiphy + 1;
2680 else
2681 cb->args[2] = -1;
2682 } else if (cb->args[2] > 0) {
2683 filter_wiphy = cb->args[2] - 1;
2684 }
2685
f5ea9120
JB		 2686 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2687 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2688 continue;
bba95fef
JB		 2689 if (wp_idx < wp_start) {
2690 wp_idx++;
55682965 2691 continue;
bba95fef 2692 }
b7fb44da
DK		 2693
2694 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2695 continue;
2696
55682965
JB		 2697 if_idx = 0;
2698
53873f13 2699 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
bba95fef
JB		 2700 if (if_idx < if_start) {
2701 if_idx++;
55682965 2702 continue;
bba95fef 2703 }
15e47304 2704 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2705 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2706 rdev, wdev, false) < 0) {
bba95fef
JB		 2707 goto out;
2708 }
2709 if_idx++;
55682965 2710 }
bba95fef
JB		 2711
2712 wp_idx++;
55682965 2713 }
bba95fef 2714 out:
55682965
JB		 2715 cb->args[0] = wp_idx;
2716 cb->args[1] = if_idx;
2717
ea90e0dc
JB		 2718 ret = skb->len;
2719 out_unlock:
2720 rtnl_unlock();
2721
2722 return ret;
55682965
JB		 2723}
2724
2725static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2726{
2727 struct sk_buff *msg;
1b8ec87a 2728 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2729 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2730
fd2120ca 2731 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2732 if (!msg)
4c476991 2733 return -ENOMEM;
55682965 2734
15e47304 2735 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2736 rdev, wdev, false) < 0) {
4c476991
JB		 2737 nlmsg_free(msg);
2738 return -ENOBUFS;
2739 }
55682965 2740
134e6375 2741 return genlmsg_reply(msg, info);
55682965
JB		 2742}
2743
66f7ac50
MW		 2744static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2745 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2746 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2747 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2748 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2749 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2750 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2751};
2752
2753static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2754{
2755 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2756 int flag;
2757
2758 *mntrflags = 0;
2759
2760 if (!nla)
2761 return -EINVAL;
2762
fceb6435
JB		 2763 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, nla,
2764 mntr_flags_policy, NULL))
66f7ac50
MW		 2765 return -EINVAL;
2766
2767 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2768 if (flags[flag])
2769 *mntrflags |= (1<<flag);
2770
818a986e
JB		 2771 *mntrflags |= MONITOR_FLAG_CHANGED;
2772
66f7ac50
MW		 2773 return 0;
2774}
2775
1db77596
JB		 2776static int nl80211_parse_mon_options(struct cfg80211_registered_device *rdev,
2777 enum nl80211_iftype type,
2778 struct genl_info *info,
2779 struct vif_params *params)
2780{
2781 bool change = false;
2782 int err;
2783
2784 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2785 if (type != NL80211_IFTYPE_MONITOR)
2786 return -EINVAL;
2787
2788 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2789 &params->flags);
2790 if (err)
2791 return err;
2792
2793 change = true;
2794 }
2795
2796 if (params->flags & MONITOR_FLAG_ACTIVE &&
2797 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2798 return -EOPNOTSUPP;
2799
2800 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2801 const u8 *mumimo_groups;
2802 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2803
2804 if (type != NL80211_IFTYPE_MONITOR)
2805 return -EINVAL;
2806
2807 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2808 return -EOPNOTSUPP;
2809
2810 mumimo_groups =
2811 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2812
2813 /* bits 0 and 63 are reserved and must be zero */
4954601f
JB		 2814 if ((mumimo_groups[0] & BIT(0)) ||
2815 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(7)))
1db77596
JB		 2816 return -EINVAL;
2817
2818 params->vht_mumimo_groups = mumimo_groups;
2819 change = true;
2820 }
2821
2822 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2823 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2824
2825 if (type != NL80211_IFTYPE_MONITOR)
2826 return -EINVAL;
2827
2828 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2829 return -EOPNOTSUPP;
2830
2831 params->vht_mumimo_follow_addr =
2832 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]);
2833 change = true;
2834 }
2835
2836 return change ? 1 : 0;
2837}
2838
9bc383de 2839static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2840 struct net_device *netdev, u8 use_4addr,
2841 enum nl80211_iftype iftype)
9bc383de 2842{
ad4bb6f8 2843 if (!use_4addr) {
f350a0a8 2844 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2845 return -EBUSY;
9bc383de 2846 return 0;
ad4bb6f8 2847 }
9bc383de
JB		 2848
2849 switch (iftype) {
2850 case NL80211_IFTYPE_AP_VLAN:
2851 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2852 return 0;
2853 break;
2854 case NL80211_IFTYPE_STATION:
2855 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2856 return 0;
2857 break;
2858 default:
2859 break;
2860 }
2861
2862 return -EOPNOTSUPP;
2863}
2864
55682965
JB		 2865static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2866{
4c476991 2867 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2868 struct vif_params params;
e36d56b6 2869 int err;
04a773ad 2870 enum nl80211_iftype otype, ntype;
4c476991 2871 struct net_device *dev = info->user_ptr[1];
ac7f9cfa 2872 bool change = false;
55682965 2873
2ec600d6
LCC		 2874 memset(&params, 0, sizeof(params));
2875
04a773ad 2876 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2877
723b038d 2878 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2879 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2880 if (otype != ntype)
ac7f9cfa 2881 change = true;
4c476991
JB		 2882 if (ntype > NL80211_IFTYPE_MAX)
2883 return -EINVAL;
723b038d
JB		 2884 }
2885
92ffe055 2886 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2887 struct wireless_dev *wdev = dev->ieee80211_ptr;
2888
4c476991
JB		 2889 if (ntype != NL80211_IFTYPE_MESH_POINT)
2890 return -EINVAL;
29cbe68c
JB		 2891 if (netif_running(dev))
2892 return -EBUSY;
2893
2894 wdev_lock(wdev);
2895 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2896 IEEE80211_MAX_MESH_ID_LEN);
2897 wdev->mesh_id_up_len =
2898 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2899 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2900 wdev->mesh_id_up_len);
2901 wdev_unlock(wdev);
2ec600d6
LCC		 2902 }
2903
8b787643
FF		 2904 if (info->attrs[NL80211_ATTR_4ADDR]) {
2905 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2906 change = true;
ad4bb6f8 2907 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2908 if (err)
4c476991 2909 return err;
8b787643
FF		 2910 } else {
2911 params.use_4addr = -1;
2912 }
2913
1db77596
JB		 2914 err = nl80211_parse_mon_options(rdev, ntype, info, &params);
2915 if (err < 0)
2916 return err;
2917 if (err > 0)
c6e6a0c8 2918 change = true;
e057d3c3 2919
ac7f9cfa 2920 if (change)
818a986e 2921 err = cfg80211_change_iface(rdev, dev, ntype, &params);
ac7f9cfa
JB		 2922 else
2923 err = 0;
60719ffd 2924
9bc383de
JB		 2925 if (!err && params.use_4addr != -1)
2926 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2927
55682965
JB		 2928 return err;
2929}
2930
2931static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2932{
4c476991 2933 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2934 struct vif_params params;
84efbb84 2935 struct wireless_dev *wdev;
896ff063 2936 struct sk_buff *msg;
55682965
JB		 2937 int err;
2938 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2939
78f22b6a
JB		 2940 /* to avoid failing a new interface creation due to pending removal */
2941 cfg80211_destroy_ifaces(rdev);
2942
2ec600d6
LCC		 2943 memset(&params, 0, sizeof(params));
2944
55682965
JB		 2945 if (!info->attrs[NL80211_ATTR_IFNAME])
2946 return -EINVAL;
2947
2948 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2949 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2950 if (type > NL80211_IFTYPE_MAX)
2951 return -EINVAL;
2952 }
2953
79c97e97 2954 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2955 !(rdev->wiphy.interface_modes & (1 << type)))
2956 return -EOPNOTSUPP;
55682965 2957
cb3b7d87 2958 if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
e8f479b1
BG		 2959 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2960 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2961 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2962 ETH_ALEN);
2963 if (!is_valid_ether_addr(params.macaddr))
2964 return -EADDRNOTAVAIL;
2965 }
2966
9bc383de 2967 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2968 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2969 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2970 if (err)
4c476991 2971 return err;
9bc383de 2972 }
8b787643 2973
1db77596
JB		 2974 err = nl80211_parse_mon_options(rdev, type, info, &params);
2975 if (err < 0)
2976 return err;
e057d3c3 2977
a18c7192
JB		 2978 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2979 if (!msg)
2980 return -ENOMEM;
2981
e35e4d28
HG		 2982 wdev = rdev_add_virtual_intf(rdev,
2983 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
818a986e 2984 NET_NAME_USER, type, &params);
d687cbb7
RM		 2985 if (WARN_ON(!wdev)) {
2986 nlmsg_free(msg);
2987 return -EPROTO;
2988 } else if (IS_ERR(wdev)) {
1c90f9d4 2989 nlmsg_free(msg);
84efbb84 2990 return PTR_ERR(wdev);
1c90f9d4 2991 }
2ec600d6 2992
18e5ca65 2993 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2994 wdev->owner_nlportid = info->snd_portid;
2995
98104fde
JB		 2996 switch (type) {
2997 case NL80211_IFTYPE_MESH_POINT:
2998 if (!info->attrs[NL80211_ATTR_MESH_ID])
2999 break;
29cbe68c
JB		 3000 wdev_lock(wdev);
3001 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
3002 IEEE80211_MAX_MESH_ID_LEN);
3003 wdev->mesh_id_up_len =
3004 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
3005 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
3006 wdev->mesh_id_up_len);
3007 wdev_unlock(wdev);
98104fde 3008 break;
cb3b7d87 3009 case NL80211_IFTYPE_NAN:
98104fde
JB		 3010 case NL80211_IFTYPE_P2P_DEVICE:
3011 /*
cb3b7d87 3012 * P2P Device and NAN do not have a netdev, so don't go
98104fde
JB		 3013 * through the netdev notifier and must be added here
3014 */
3015 mutex_init(&wdev->mtx);
3016 INIT_LIST_HEAD(&wdev->event_list);
3017 spin_lock_init(&wdev->event_lock);
3018 INIT_LIST_HEAD(&wdev->mgmt_registrations);
3019 spin_lock_init(&wdev->mgmt_registrations_lock);
3020
98104fde 3021 wdev->identifier = ++rdev->wdev_id;
53873f13 3022 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
98104fde 3023 rdev->devlist_generation++;
98104fde
JB		 3024 break;
3025 default:
3026 break;
29cbe68c
JB		 3027 }
3028
15e47304 3029 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 3030 rdev, wdev, false) < 0) {
1c90f9d4
JB		 3031 nlmsg_free(msg);
3032 return -ENOBUFS;
3033 }
3034
896ff063
DK		 3035 /*
3036 * For wdevs which have no associated netdev object (e.g. of type
3037 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
3038 * For all other types, the event will be generated from the
3039 * netdev notifier
3040 */
3041 if (!wdev->netdev)
3042 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
8f894be2 3043
1c90f9d4 3044 return genlmsg_reply(msg, info);
55682965
JB		 3045}
3046
3047static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
3048{
4c476991 3049 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 3050 struct wireless_dev *wdev = info->user_ptr[1];
55682965 3051
4c476991
JB		 3052 if (!rdev->ops->del_virtual_intf)
3053 return -EOPNOTSUPP;
55682965 3054
84efbb84
JB		 3055 /*
3056 * If we remove a wireless device without a netdev then clear
3057 * user_ptr[1] so that nl80211_post_doit won't dereference it
3058 * to check if it needs to do dev_put(). Otherwise it crashes
3059 * since the wdev has been freed, unlike with a netdev where
3060 * we need the dev_put() for the netdev to really be freed.
3061 */
3062 if (!wdev->netdev)
3063 info->user_ptr[1] = NULL;
3064
7f8ed01e 3065 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 3066}
3067
1d9d9213
SW		 3068static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
3069{
3070 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3071 struct net_device *dev = info->user_ptr[1];
3072 u16 noack_map;
3073
3074 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
3075 return -EINVAL;
3076
3077 if (!rdev->ops->set_noack_map)
3078 return -EOPNOTSUPP;
3079
3080 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
3081
e35e4d28 3082 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 3083}
3084
41ade00f
JB		 3085struct get_key_cookie {
3086 struct sk_buff *msg;
3087 int error;
b9454e83 3088 int idx;
41ade00f
JB		 3089};
3090
3091static void get_key_callback(void *c, struct key_params *params)
3092{
b9454e83 3093 struct nlattr *key;
41ade00f
JB		 3094 struct get_key_cookie *cookie = c;
3095
9360ffd1
DM		 3096 if ((params->key &&
3097 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
3098 params->key_len, params->key)) ||
3099 (params->seq &&
3100 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
3101 params->seq_len, params->seq)) ||
3102 (params->cipher &&
3103 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
3104 params->cipher)))
3105 goto nla_put_failure;
41ade00f 3106
b9454e83
JB		 3107 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
3108 if (!key)
3109 goto nla_put_failure;
3110
9360ffd1
DM		 3111 if ((params->key &&
3112 nla_put(cookie->msg, NL80211_KEY_DATA,
3113 params->key_len, params->key)) ||
3114 (params->seq &&
3115 nla_put(cookie->msg, NL80211_KEY_SEQ,
3116 params->seq_len, params->seq)) ||
3117 (params->cipher &&
3118 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
3119 params->cipher)))
3120 goto nla_put_failure;
b9454e83 3121
9360ffd1
DM		 3122 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
3123 goto nla_put_failure;
b9454e83
JB		 3124
3125 nla_nest_end(cookie->msg, key);
3126
41ade00f
JB		 3127 return;
3128 nla_put_failure:
3129 cookie->error = 1;
3130}
3131
3132static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3133{
4c476991 3134 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3135 int err;
4c476991 3136 struct net_device *dev = info->user_ptr[1];
41ade00f 3137 u8 key_idx = 0;
e31b8213
JB		 3138 const u8 *mac_addr = NULL;
3139 bool pairwise;
41ade00f
JB		 3140 struct get_key_cookie cookie = {
3141 .error = 0,
3142 };
3143 void *hdr;
3144 struct sk_buff *msg;
3145
3146 if (info->attrs[NL80211_ATTR_KEY_IDX])
3147 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3148
3cfcf6ac 3149 if (key_idx > 5)
41ade00f
JB		 3150 return -EINVAL;
3151
3152 if (info->attrs[NL80211_ATTR_MAC])
3153 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3154
e31b8213
JB		 3155 pairwise = !!mac_addr;
3156 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3157 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
7a087e74 3158
e31b8213
JB		 3159 if (kt >= NUM_NL80211_KEYTYPES)
3160 return -EINVAL;
3161 if (kt != NL80211_KEYTYPE_GROUP &&
3162 kt != NL80211_KEYTYPE_PAIRWISE)
3163 return -EINVAL;
3164 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3165 }
3166
4c476991
JB		 3167 if (!rdev->ops->get_key)
3168 return -EOPNOTSUPP;
41ade00f 3169
0fa7b391
JB		 3170 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3171 return -ENOENT;
3172
fd2120ca 3173 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3174 if (!msg)
3175 return -ENOMEM;
41ade00f 3176
15e47304 3177 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 3178 NL80211_CMD_NEW_KEY);
cb35fba3 3179 if (!hdr)
9fe271af 3180 goto nla_put_failure;
41ade00f
JB		 3181
3182 cookie.msg = msg;
b9454e83 3183 cookie.idx = key_idx;
41ade00f 3184
9360ffd1
DM		 3185 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3186 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3187 goto nla_put_failure;
3188 if (mac_addr &&
3189 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3190 goto nla_put_failure;
41ade00f 3191
e35e4d28
HG		 3192 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3193 get_key_callback);
41ade00f
JB		 3194
3195 if (err)
6c95e2a2 3196 goto free_msg;
41ade00f
JB		 3197
3198 if (cookie.error)
3199 goto nla_put_failure;
3200
3201 genlmsg_end(msg, hdr);
4c476991 3202 return genlmsg_reply(msg, info);
41ade00f
JB		 3203
3204 nla_put_failure:
3205 err = -ENOBUFS;
6c95e2a2 3206 free_msg:
41ade00f 3207 nlmsg_free(msg);
41ade00f
JB		 3208 return err;
3209}
3210
3211static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3212{
4c476991 3213 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 3214 struct key_parse key;
41ade00f 3215 int err;
4c476991 3216 struct net_device *dev = info->user_ptr[1];
41ade00f 3217
b9454e83
JB		 3218 err = nl80211_parse_key(info, &key);
3219 if (err)
3220 return err;
41ade00f 3221
b9454e83 3222 if (key.idx < 0)
41ade00f
JB		 3223 return -EINVAL;
3224
b9454e83
JB		 3225 /* only support setting default key */
3226 if (!key.def && !key.defmgmt)
41ade00f
JB		 3227 return -EINVAL;
3228
dbd2fd65 3229 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 3230
dbd2fd65
JB		 3231 if (key.def) {
3232 if (!rdev->ops->set_default_key) {
3233 err = -EOPNOTSUPP;
3234 goto out;
3235 }
41ade00f 3236
dbd2fd65
JB		 3237 err = nl80211_key_allowed(dev->ieee80211_ptr);
3238 if (err)
3239 goto out;
3240
e35e4d28 3241 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 3242 key.def_uni, key.def_multi);
3243
3244 if (err)
3245 goto out;
fffd0934 3246
3d23e349 3247#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 3248 dev->ieee80211_ptr->wext.default_key = key.idx;
3249#endif
3250 } else {
3251 if (key.def_uni || !key.def_multi) {
3252 err = -EINVAL;
3253 goto out;
3254 }
3255
3256 if (!rdev->ops->set_default_mgmt_key) {
3257 err = -EOPNOTSUPP;
3258 goto out;
3259 }
3260
3261 err = nl80211_key_allowed(dev->ieee80211_ptr);
3262 if (err)
3263 goto out;
3264
e35e4d28 3265 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 3266 if (err)
3267 goto out;
3268
3269#ifdef CONFIG_CFG80211_WEXT
3270 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3271#endif
dbd2fd65
JB		 3272 }
3273
3274 out:
fffd0934 3275 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3276
41ade00f
JB		 3277 return err;
3278}
3279
3280static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3281{
4c476991 3282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3283 int err;
4c476991 3284 struct net_device *dev = info->user_ptr[1];
b9454e83 3285 struct key_parse key;
e31b8213 3286 const u8 *mac_addr = NULL;
41ade00f 3287
b9454e83
JB		 3288 err = nl80211_parse_key(info, &key);
3289 if (err)
3290 return err;
41ade00f 3291
b9454e83 3292 if (!key.p.key)
41ade00f
JB		 3293 return -EINVAL;
3294
41ade00f
JB		 3295 if (info->attrs[NL80211_ATTR_MAC])
3296 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3297
e31b8213
JB		 3298 if (key.type == -1) {
3299 if (mac_addr)
3300 key.type = NL80211_KEYTYPE_PAIRWISE;
3301 else
3302 key.type = NL80211_KEYTYPE_GROUP;
3303 }
3304
3305 /* for now */
3306 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3307 key.type != NL80211_KEYTYPE_GROUP)
3308 return -EINVAL;
3309
4c476991
JB		 3310 if (!rdev->ops->add_key)
3311 return -EOPNOTSUPP;
25e47c18 3312
e31b8213
JB		 3313 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3314 key.type == NL80211_KEYTYPE_PAIRWISE,
3315 mac_addr))
4c476991 3316 return -EINVAL;
41ade00f 3317
fffd0934
JB		 3318 wdev_lock(dev->ieee80211_ptr);
3319 err = nl80211_key_allowed(dev->ieee80211_ptr);
3320 if (!err)
e35e4d28
HG		 3321 err = rdev_add_key(rdev, dev, key.idx,
3322 key.type == NL80211_KEYTYPE_PAIRWISE,
3323 mac_addr, &key.p);
fffd0934 3324 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3325
41ade00f
JB		 3326 return err;
3327}
3328
3329static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3330{
4c476991 3331 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3332 int err;
4c476991 3333 struct net_device *dev = info->user_ptr[1];
41ade00f 3334 u8 *mac_addr = NULL;
b9454e83 3335 struct key_parse key;
41ade00f 3336
b9454e83
JB		 3337 err = nl80211_parse_key(info, &key);
3338 if (err)
3339 return err;
41ade00f
JB		 3340
3341 if (info->attrs[NL80211_ATTR_MAC])
3342 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3343
e31b8213
JB		 3344 if (key.type == -1) {
3345 if (mac_addr)
3346 key.type = NL80211_KEYTYPE_PAIRWISE;
3347 else
3348 key.type = NL80211_KEYTYPE_GROUP;
3349 }
3350
3351 /* for now */
3352 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3353 key.type != NL80211_KEYTYPE_GROUP)
3354 return -EINVAL;
3355
4c476991
JB		 3356 if (!rdev->ops->del_key)
3357 return -EOPNOTSUPP;
41ade00f 3358
fffd0934
JB		 3359 wdev_lock(dev->ieee80211_ptr);
3360 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3361
0fa7b391 3362 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3363 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3364 err = -ENOENT;
3365
fffd0934 3366 if (!err)
e35e4d28
HG		 3367 err = rdev_del_key(rdev, dev, key.idx,
3368 key.type == NL80211_KEYTYPE_PAIRWISE,
3369 mac_addr);
41ade00f 3370
3d23e349 3371#ifdef CONFIG_CFG80211_WEXT
08645126 3372 if (!err) {
b9454e83 3373 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3374 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3375 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3376 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3377 }
3378#endif
fffd0934 3379 wdev_unlock(dev->ieee80211_ptr);
08645126 3380
41ade00f
JB		 3381 return err;
3382}
3383
77765eaf
VT		 3384/* This function returns an error or the number of nested attributes */
3385static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3386{
3387 struct nlattr *attr;
3388 int n_entries = 0, tmp;
3389
3390 nla_for_each_nested(attr, nl_attr, tmp) {
3391 if (nla_len(attr) != ETH_ALEN)
3392 return -EINVAL;
3393
3394 n_entries++;
3395 }
3396
3397 return n_entries;
3398}
3399
3400/*
3401 * This function parses ACL information and allocates memory for ACL data.
3402 * On successful return, the calling function is responsible to free the
3403 * ACL buffer returned by this function.
3404 */
3405static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3406 struct genl_info *info)
3407{
3408 enum nl80211_acl_policy acl_policy;
3409 struct nlattr *attr;
3410 struct cfg80211_acl_data *acl;
3411 int i = 0, n_entries, tmp;
3412
3413 if (!wiphy->max_acl_mac_addrs)
3414 return ERR_PTR(-EOPNOTSUPP);
3415
3416 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3417 return ERR_PTR(-EINVAL);
3418
3419 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3420 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3421 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3422 return ERR_PTR(-EINVAL);
3423
3424 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3425 return ERR_PTR(-EINVAL);
3426
3427 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3428 if (n_entries < 0)
3429 return ERR_PTR(n_entries);
3430
3431 if (n_entries > wiphy->max_acl_mac_addrs)
3432 return ERR_PTR(-ENOTSUPP);
3433
3434 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3435 GFP_KERNEL);
3436 if (!acl)
3437 return ERR_PTR(-ENOMEM);
3438
3439 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3440 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3441 i++;
3442 }
3443
3444 acl->n_acl_entries = n_entries;
3445 acl->acl_policy = acl_policy;
3446
3447 return acl;
3448}
3449
3450static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3451{
3452 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3453 struct net_device *dev = info->user_ptr[1];
3454 struct cfg80211_acl_data *acl;
3455 int err;
3456
3457 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3458 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3459 return -EOPNOTSUPP;
3460
3461 if (!dev->ieee80211_ptr->beacon_interval)
3462 return -EINVAL;
3463
3464 acl = parse_acl_data(&rdev->wiphy, info);
3465 if (IS_ERR(acl))
3466 return PTR_ERR(acl);
3467
3468 err = rdev_set_mac_acl(rdev, dev, acl);
3469
3470 kfree(acl);
3471
3472 return err;
3473}
3474
a7c7fbff
PK		 3475static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
3476 u8 *rates, u8 rates_len)
3477{
3478 u8 i;
3479 u32 mask = 0;
3480
3481 for (i = 0; i < rates_len; i++) {
3482 int rate = (rates[i] & 0x7f) * 5;
3483 int ridx;
3484
3485 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
3486 struct ieee80211_rate *srate =
3487 &sband->bitrates[ridx];
3488 if (rate == srate->bitrate) {
3489 mask |= 1 << ridx;
3490 break;
3491 }
3492 }
3493 if (ridx == sband->n_bitrates)
3494 return 0; /* rate not found */
3495 }
3496
3497 return mask;
3498}
3499
3500static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
3501 u8 *rates, u8 rates_len,
3502 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
3503{
3504 u8 i;
3505
3506 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
3507
3508 for (i = 0; i < rates_len; i++) {
3509 int ridx, rbit;
3510
3511 ridx = rates[i] / 8;
3512 rbit = BIT(rates[i] % 8);
3513
3514 /* check validity */
3515 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
3516 return false;
3517
3518 /* check availability */
434a30a6 3519 ridx = array_index_nospec(ridx, IEEE80211_HT_MCS_MASK_LEN);
a7c7fbff
PK		 3520 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
3521 mcs[ridx] |= rbit;
3522 else
3523 return false;
3524 }
3525
3526 return true;
3527}
3528
3529static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
3530{
3531 u16 mcs_mask = 0;
3532
3533 switch (vht_mcs_map) {
3534 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
3535 break;
3536 case IEEE80211_VHT_MCS_SUPPORT_0_7:
3537 mcs_mask = 0x00FF;
3538 break;
3539 case IEEE80211_VHT_MCS_SUPPORT_0_8:
3540 mcs_mask = 0x01FF;
3541 break;
3542 case IEEE80211_VHT_MCS_SUPPORT_0_9:
3543 mcs_mask = 0x03FF;
3544 break;
3545 default:
3546 break;
3547 }
3548
3549 return mcs_mask;
3550}
3551
3552static void vht_build_mcs_mask(u16 vht_mcs_map,
3553 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
3554{
3555 u8 nss;
3556
3557 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
3558 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
3559 vht_mcs_map >>= 2;
3560 }
3561}
3562
3563static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
3564 struct nl80211_txrate_vht *txrate,
3565 u16 mcs[NL80211_VHT_NSS_MAX])
3566{
3567 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3568 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
3569 u8 i;
3570
3571 if (!sband->vht_cap.vht_supported)
3572 return false;
3573
3574 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
3575
3576 /* Build vht_mcs_mask from VHT capabilities */
3577 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
3578
3579 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3580 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
3581 mcs[i] = txrate->mcs[i];
3582 else
3583 return false;
3584 }
3585
3586 return true;
3587}
3588
3589static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
3590 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
3591 .len = NL80211_MAX_SUPP_RATES },
3592 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
3593 .len = NL80211_MAX_SUPP_HT_RATES },
3594 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
3595 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
3596};
3597
3598static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
3599 struct cfg80211_bitrate_mask *mask)
3600{
3601 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
3602 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3603 int rem, i;
3604 struct nlattr *tx_rates;
3605 struct ieee80211_supported_band *sband;
3606 u16 vht_tx_mcs_map;
3607
3608 memset(mask, 0, sizeof(*mask));
3609 /* Default to all rates enabled */
3610 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3611 sband = rdev->wiphy.bands[i];
3612
3613 if (!sband)
3614 continue;
3615
3616 mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
3617 memcpy(mask->control[i].ht_mcs,
3618 sband->ht_cap.mcs.rx_mask,
3619 sizeof(mask->control[i].ht_mcs));
3620
3621 if (!sband->vht_cap.vht_supported)
3622 continue;
3623
3624 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3625 vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
3626 }
3627
3628 /* if no rates are given set it back to the defaults */
3629 if (!info->attrs[NL80211_ATTR_TX_RATES])
3630 goto out;
3631
3632 /* The nested attribute uses enum nl80211_band as the index. This maps
3633 * directly to the enum nl80211_band values used in cfg80211.
3634 */
3635 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
3636 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
3637 enum nl80211_band band = nla_type(tx_rates);
3638 int err;
3639
3640 if (band < 0 || band >= NUM_NL80211_BANDS)
3641 return -EINVAL;
3642 sband = rdev->wiphy.bands[band];
3643 if (sband == NULL)
3644 return -EINVAL;
bfe2c7b1 3645 err = nla_parse_nested(tb, NL80211_TXRATE_MAX, tx_rates,
fe52145f 3646 nl80211_txattr_policy, info->extack);
a7c7fbff
PK		 3647 if (err)
3648 return err;
3649 if (tb[NL80211_TXRATE_LEGACY]) {
3650 mask->control[band].legacy = rateset_to_mask(
3651 sband,
3652 nla_data(tb[NL80211_TXRATE_LEGACY]),
3653 nla_len(tb[NL80211_TXRATE_LEGACY]));
3654 if ((mask->control[band].legacy == 0) &&
3655 nla_len(tb[NL80211_TXRATE_LEGACY]))
3656 return -EINVAL;
3657 }
3658 if (tb[NL80211_TXRATE_HT]) {
3659 if (!ht_rateset_to_mask(
3660 sband,
3661 nla_data(tb[NL80211_TXRATE_HT]),
3662 nla_len(tb[NL80211_TXRATE_HT]),
3663 mask->control[band].ht_mcs))
3664 return -EINVAL;
3665 }
3666 if (tb[NL80211_TXRATE_VHT]) {
3667 if (!vht_set_mcs_mask(
3668 sband,
3669 nla_data(tb[NL80211_TXRATE_VHT]),
3670 mask->control[band].vht_mcs))
3671 return -EINVAL;
3672 }
3673 if (tb[NL80211_TXRATE_GI]) {
3674 mask->control[band].gi =
3675 nla_get_u8(tb[NL80211_TXRATE_GI]);
3676 if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
3677 return -EINVAL;
3678 }
3679
3680 if (mask->control[band].legacy == 0) {
3681 /* don't allow empty legacy rates if HT or VHT
3682 * are not even supported.
3683 */
3684 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
3685 rdev->wiphy.bands[band]->vht_cap.vht_supported))
3686 return -EINVAL;
3687
3688 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
3689 if (mask->control[band].ht_mcs[i])
3690 goto out;
3691
3692 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
3693 if (mask->control[band].vht_mcs[i])
3694 goto out;
3695
3696 /* legacy and mcs rates may not be both empty */
3697 return -EINVAL;
3698 }
3699 }
3700
3701out:
3702 return 0;
3703}
3704
8564e382
JB		 3705static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
3706 enum nl80211_band band,
3707 struct cfg80211_bitrate_mask *beacon_rate)
a7c7fbff 3708{
8564e382
JB		 3709 u32 count_ht, count_vht, i;
3710 u32 rate = beacon_rate->control[band].legacy;
a7c7fbff
PK		 3711
3712 /* Allow only one rate */
3713 if (hweight32(rate) > 1)
3714 return -EINVAL;
3715
3716 count_ht = 0;
3717 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
8564e382 3718 if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
a7c7fbff 3719 return -EINVAL;
8564e382 3720 } else if (beacon_rate->control[band].ht_mcs[i]) {
a7c7fbff
PK		 3721 count_ht++;
3722 if (count_ht > 1)
3723 return -EINVAL;
3724 }
3725 if (count_ht && rate)
3726 return -EINVAL;
3727 }
3728
3729 count_vht = 0;
3730 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8564e382 3731 if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
a7c7fbff 3732 return -EINVAL;
8564e382 3733 } else if (beacon_rate->control[band].vht_mcs[i]) {
a7c7fbff
PK		 3734 count_vht++;
3735 if (count_vht > 1)
3736 return -EINVAL;
3737 }
3738 if (count_vht && rate)
3739 return -EINVAL;
3740 }
3741
3742 if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
3743 return -EINVAL;
3744
8564e382
JB		 3745 if (rate &&
3746 !wiphy_ext_feature_isset(&rdev->wiphy,
3747 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
3748 return -EINVAL;
3749 if (count_ht &&
3750 !wiphy_ext_feature_isset(&rdev->wiphy,
3751 NL80211_EXT_FEATURE_BEACON_RATE_HT))
3752 return -EINVAL;
3753 if (count_vht &&
3754 !wiphy_ext_feature_isset(&rdev->wiphy,
3755 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
3756 return -EINVAL;
3757
a7c7fbff
PK		 3758 return 0;
3759}
3760
a1193be8 3761static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3762 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3763{
8860020e 3764 bool haveinfo = false;
ed1b6cc7 3765
a1193be8
SW		 3766 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3767 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3768 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3769 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3770 return -EINVAL;
3771
8860020e 3772 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3773
a1193be8
SW		 3774 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3775 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3776 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3777 if (!bcn->head_len)
3778 return -EINVAL;
3779 haveinfo = true;
ed1b6cc7
JB		 3780 }
3781
a1193be8
SW		 3782 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3783 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3784 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3785 haveinfo = true;
ed1b6cc7
JB		 3786 }
3787
4c476991
JB		 3788 if (!haveinfo)
3789 return -EINVAL;
3b85875a 3790
a1193be8
SW		 3791 if (attrs[NL80211_ATTR_IE]) {
3792 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3793 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3794 }
3795
a1193be8 3796 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3797 bcn->proberesp_ies =
a1193be8 3798 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3799 bcn->proberesp_ies_len =
a1193be8 3800 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3801 }
3802
a1193be8 3803 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3804 bcn->assocresp_ies =
a1193be8 3805 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3806 bcn->assocresp_ies_len =
a1193be8 3807 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3808 }
3809
a1193be8
SW		 3810 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3811 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3812 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3813 }
3814
8860020e
JB		 3815 return 0;
3816}
3817
66cd794e
JB		 3818static void nl80211_check_ap_rate_selectors(struct cfg80211_ap_settings *params,
3819 const u8 *rates)
3820{
3821 int i;
3822
3823 if (!rates)
3824 return;
3825
3826 for (i = 0; i < rates[1]; i++) {
3827 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_HT_PHY)
3828 params->ht_required = true;
3829 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_VHT_PHY)
3830 params->vht_required = true;
3831 }
3832}
3833
3834/*
3835 * Since the nl80211 API didn't include, from the beginning, attributes about
3836 * HT/VHT requirements/capabilities, we parse them out of the IEs for the
3837 * benefit of drivers that rebuild IEs in the firmware.
3838 */
3839static void nl80211_calculate_ap_params(struct cfg80211_ap_settings *params)
3840{
3841 const struct cfg80211_beacon_data *bcn = &params->beacon;
ba83bfb1
IM		 3842 size_t ies_len = bcn->tail_len;
3843 const u8 *ies = bcn->tail;
66cd794e
JB		 3844 const u8 *rates;
3845 const u8 *cap;
3846
3847 rates = cfg80211_find_ie(WLAN_EID_SUPP_RATES, ies, ies_len);
3848 nl80211_check_ap_rate_selectors(params, rates);
3849
3850 rates = cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES, ies, ies_len);
3851 nl80211_check_ap_rate_selectors(params, rates);
3852
3853 cap = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, ies_len);
3854 if (cap && cap[1] >= sizeof(*params->ht_cap))
3855 params->ht_cap = (void *)(cap + 2);
3856 cap = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, ies, ies_len);
3857 if (cap && cap[1] >= sizeof(*params->vht_cap))
3858 params->vht_cap = (void *)(cap + 2);
3859}
3860
46c1dd0c
FF		 3861static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3862 struct cfg80211_ap_settings *params)
3863{
3864 struct wireless_dev *wdev;
3865 bool ret = false;
3866
53873f13 3867 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
46c1dd0c
FF		 3868 if (wdev->iftype != NL80211_IFTYPE_AP &&
3869 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3870 continue;
3871
683b6d3b 3872 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3873 continue;
3874
683b6d3b 3875 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3876 ret = true;
3877 break;
3878 }
3879
46c1dd0c
FF		 3880 return ret;
3881}
3882
e39e5b5e
JM		 3883static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3884 enum nl80211_auth_type auth_type,
3885 enum nl80211_commands cmd)
3886{
3887 if (auth_type > NL80211_AUTHTYPE_MAX)
3888 return false;
3889
3890 switch (cmd) {
3891 case NL80211_CMD_AUTHENTICATE:
3892 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3893 auth_type == NL80211_AUTHTYPE_SAE)
3894 return false;
63181060
JM		 3895 if (!wiphy_ext_feature_isset(&rdev->wiphy,
3896 NL80211_EXT_FEATURE_FILS_STA) &&
3897 (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3898 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3899 auth_type == NL80211_AUTHTYPE_FILS_PK))
3900 return false;
e39e5b5e
JM		 3901 return true;
3902 case NL80211_CMD_CONNECT:
a3caf744
VK		 3903 /* SAE not supported yet */
3904 if (auth_type == NL80211_AUTHTYPE_SAE)
3905 return false;
3906 /* FILS with SK PFS or PK not supported yet */
3907 if (auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3908 auth_type == NL80211_AUTHTYPE_FILS_PK)
3909 return false;
3910 if (!wiphy_ext_feature_isset(
3911 &rdev->wiphy,
3912 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
3913 auth_type == NL80211_AUTHTYPE_FILS_SK)
3914 return false;
3915 return true;
e39e5b5e
JM		 3916 case NL80211_CMD_START_AP:
3917 /* SAE not supported yet */
3918 if (auth_type == NL80211_AUTHTYPE_SAE)
3919 return false;
63181060
JM		 3920 /* FILS not supported yet */
3921 if (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3922 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3923 auth_type == NL80211_AUTHTYPE_FILS_PK)
3924 return false;
e39e5b5e
JM		 3925 return true;
3926 default:
3927 return false;
3928 }
3929}
3930
8860020e
JB		 3931static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3932{
3933 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3934 struct net_device *dev = info->user_ptr[1];
3935 struct wireless_dev *wdev = dev->ieee80211_ptr;
3936 struct cfg80211_ap_settings params;
3937 int err;
3938
3939 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3940 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3941 return -EOPNOTSUPP;
3942
3943 if (!rdev->ops->start_ap)
3944 return -EOPNOTSUPP;
3945
3946 if (wdev->beacon_interval)
3947 return -EALREADY;
3948
3949 memset(&params, 0, sizeof(params));
3950
3951 /* these are required for START_AP */
3952 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3953 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3954 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3955 return -EINVAL;
3956
a1193be8 3957 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3958 if (err)
3959 return err;
3960
3961 params.beacon_interval =
3962 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3963 params.dtim_period =
3964 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3965
0c317a02
PK		 3966 err = cfg80211_validate_beacon_int(rdev, dev->ieee80211_ptr->iftype,
3967 params.beacon_interval);
8860020e
JB		 3968 if (err)
3969 return err;
3970
3971 /*
3972 * In theory, some of these attributes should be required here
3973 * but since they were not used when the command was originally
3974 * added, keep them optional for old user space programs to let
3975 * them continue to work with drivers that do not need the
3976 * additional information -- drivers must check!
3977 */
3978 if (info->attrs[NL80211_ATTR_SSID]) {
3979 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3980 params.ssid_len =
3981 nla_len(info->attrs[NL80211_ATTR_SSID]);
3982 if (params.ssid_len == 0 ||
3983 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3984 return -EINVAL;
3985 }
3986
3987 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3988 params.hidden_ssid = nla_get_u32(
3989 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3990 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3991 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3992 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3993 return -EINVAL;
3994 }
3995
3996 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3997
3998 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3999 params.auth_type = nla_get_u32(
4000 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 4001 if (!nl80211_valid_auth_type(rdev, params.auth_type,
4002 NL80211_CMD_START_AP))
8860020e
JB		 4003 return -EINVAL;
4004 } else
4005 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4006
4007 err = nl80211_crypto_settings(rdev, info, &params.crypto,
4008 NL80211_MAX_NR_CIPHER_SUITES);
4009 if (err)
4010 return err;
4011
1b658f11
VT		 4012 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
4013 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
4014 return -EOPNOTSUPP;
4015 params.inactivity_timeout = nla_get_u16(
4016 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
4017 }
4018
53cabad7
JB		 4019 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4020 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4021 return -EINVAL;
4022 params.p2p_ctwindow =
4023 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4024 if (params.p2p_ctwindow > 127)
4025 return -EINVAL;
4026 if (params.p2p_ctwindow != 0 &&
4027 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4028 return -EINVAL;
4029 }
4030
4031 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4032 u8 tmp;
4033
4034 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4035 return -EINVAL;
4036 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4037 if (tmp > 1)
4038 return -EINVAL;
4039 params.p2p_opp_ps = tmp;
4040 if (params.p2p_opp_ps != 0 &&
4041 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4042 return -EINVAL;
4043 }
4044
aa430da4 4045 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 4046 err = nl80211_parse_chandef(rdev, info, &params.chandef);
4047 if (err)
4048 return err;
4049 } else if (wdev->preset_chandef.chan) {
4050 params.chandef = wdev->preset_chandef;
46c1dd0c 4051 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 4052 return -EINVAL;
4053
923b352f
AN		 4054 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
4055 wdev->iftype))
aa430da4
JB		 4056 return -EINVAL;
4057
a7c7fbff
PK		 4058 if (info->attrs[NL80211_ATTR_TX_RATES]) {
4059 err = nl80211_parse_tx_bitrate_mask(info, &params.beacon_rate);
4060 if (err)
4061 return err;
4062
8564e382
JB		 4063 err = validate_beacon_tx_rate(rdev, params.chandef.chan->band,
4064 &params.beacon_rate);
a7c7fbff
PK		 4065 if (err)
4066 return err;
4067 }
4068
18998c38
EP		 4069 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
4070 params.smps_mode =
4071 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
4072 switch (params.smps_mode) {
4073 case NL80211_SMPS_OFF:
4074 break;
4075 case NL80211_SMPS_STATIC:
4076 if (!(rdev->wiphy.features &
4077 NL80211_FEATURE_STATIC_SMPS))
4078 return -EINVAL;
4079 break;
4080 case NL80211_SMPS_DYNAMIC:
4081 if (!(rdev->wiphy.features &
4082 NL80211_FEATURE_DYNAMIC_SMPS))
4083 return -EINVAL;
4084 break;
4085 default:
4086 return -EINVAL;
4087 }
4088 } else {
4089 params.smps_mode = NL80211_SMPS_OFF;
4090 }
4091
6e8ef842
PK		 4092 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
4093 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
4094 return -EOPNOTSUPP;
4095
4baf6bea
OO		 4096 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
4097 params.acl = parse_acl_data(&rdev->wiphy, info);
4098 if (IS_ERR(params.acl))
4099 return PTR_ERR(params.acl);
4100 }
4101
66cd794e
JB		 4102 nl80211_calculate_ap_params(&params);
4103
c56589ed 4104 wdev_lock(wdev);
e35e4d28 4105 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 4106 if (!err) {
683b6d3b 4107 wdev->preset_chandef = params.chandef;
8860020e 4108 wdev->beacon_interval = params.beacon_interval;
9e0e2961 4109 wdev->chandef = params.chandef;
06e191e2
AQ		 4110 wdev->ssid_len = params.ssid_len;
4111 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 4112 }
c56589ed 4113 wdev_unlock(wdev);
77765eaf
VT		 4114
4115 kfree(params.acl);
4116
56d1893d 4117 return err;
ed1b6cc7
JB		 4118}
4119
8860020e
JB		 4120static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
4121{
4122 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4123 struct net_device *dev = info->user_ptr[1];
4124 struct wireless_dev *wdev = dev->ieee80211_ptr;
4125 struct cfg80211_beacon_data params;
4126 int err;
4127
4128 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4129 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4130 return -EOPNOTSUPP;
4131
4132 if (!rdev->ops->change_beacon)
4133 return -EOPNOTSUPP;
4134
4135 if (!wdev->beacon_interval)
4136 return -EINVAL;
4137
a1193be8 4138 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 4139 if (err)
4140 return err;
4141
c56589ed
SW		 4142 wdev_lock(wdev);
4143 err = rdev_change_beacon(rdev, dev, &params);
4144 wdev_unlock(wdev);
4145
4146 return err;
8860020e
JB		 4147}
4148
4149static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 4150{
4c476991
JB		 4151 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4152 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 4153
7c8d5e03 4154 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 4155}
4156
5727ef1b
JB		 4157static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
4158 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
4159 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
4160 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 4161 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 4162 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 4163 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 4164};
4165
eccb8e8f 4166static int parse_station_flags(struct genl_info *info,
bdd3ae3d 4167 enum nl80211_iftype iftype,
eccb8e8f 4168 struct station_parameters *params)
5727ef1b
JB		 4169{
4170 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 4171 struct nlattr *nla;
5727ef1b
JB		 4172 int flag;
4173
eccb8e8f
JB		 4174 /*
4175 * Try parsing the new attribute first so userspace
4176 * can specify both for older kernels.
4177 */
4178 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
4179 if (nla) {
4180 struct nl80211_sta_flag_update *sta_flags;
4181
4182 sta_flags = nla_data(nla);
4183 params->sta_flags_mask = sta_flags->mask;
4184 params->sta_flags_set = sta_flags->set;
77ee7c89 4185 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 4186 if ((params->sta_flags_mask |
4187 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
4188 return -EINVAL;
4189 return 0;
4190 }
4191
4192 /* if present, parse the old attribute */
5727ef1b 4193
eccb8e8f 4194 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 4195 if (!nla)
4196 return 0;
4197
fceb6435 4198 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, nla,
fe52145f 4199 sta_flags_policy, info->extack))
5727ef1b
JB		 4200 return -EINVAL;
4201
bdd3ae3d
JB		 4202 /*
4203 * Only allow certain flags for interface types so that
4204 * other attributes are silently ignored. Remember that
4205 * this is backward compatibility code with old userspace
4206 * and shouldn't be hit in other cases anyway.
4207 */
4208 switch (iftype) {
4209 case NL80211_IFTYPE_AP:
4210 case NL80211_IFTYPE_AP_VLAN:
4211 case NL80211_IFTYPE_P2P_GO:
4212 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4213 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4214 BIT(NL80211_STA_FLAG_WME) |
4215 BIT(NL80211_STA_FLAG_MFP);
4216 break;
4217 case NL80211_IFTYPE_P2P_CLIENT:
4218 case NL80211_IFTYPE_STATION:
4219 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4220 BIT(NL80211_STA_FLAG_TDLS_PEER);
4221 break;
4222 case NL80211_IFTYPE_MESH_POINT:
4223 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4224 BIT(NL80211_STA_FLAG_MFP) |
4225 BIT(NL80211_STA_FLAG_AUTHORIZED);
4226 default:
4227 return -EINVAL;
4228 }
5727ef1b 4229
3383b5a6
JB		 4230 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
4231 if (flags[flag]) {
eccb8e8f 4232 params->sta_flags_set |= (1<<flag);
5727ef1b 4233
3383b5a6
JB		 4234 /* no longer support new API additions in old API */
4235 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
4236 return -EINVAL;
4237 }
4238 }
4239
5727ef1b
JB		 4240 return 0;
4241}
4242
c8dcfd8a
FF		 4243static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
4244 int attr)
4245{
4246 struct nlattr *rate;
8eb41c8d
VK		 4247 u32 bitrate;
4248 u16 bitrate_compat;
bbf67e45 4249 enum nl80211_rate_info rate_flg;
c8dcfd8a
FF		 4250
4251 rate = nla_nest_start(msg, attr);
4252 if (!rate)
db9c64cf 4253 return false;
c8dcfd8a
FF		 4254
4255 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
4256 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 4257 /* report 16-bit bitrate only if we can */
4258 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 4259 if (bitrate > 0 &&
4260 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
4261 return false;
4262 if (bitrate_compat > 0 &&
4263 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
4264 return false;
4265
b51f3bee
JB		 4266 switch (info->bw) {
4267 case RATE_INFO_BW_5:
4268 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
4269 break;
4270 case RATE_INFO_BW_10:
4271 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
4272 break;
4273 default:
4274 WARN_ON(1);
4275 /* fall through */
4276 case RATE_INFO_BW_20:
4277 rate_flg = 0;
4278 break;
4279 case RATE_INFO_BW_40:
4280 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
4281 break;
4282 case RATE_INFO_BW_80:
4283 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
4284 break;
4285 case RATE_INFO_BW_160:
4286 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
4287 break;
4288 }
4289
4290 if (rate_flg && nla_put_flag(msg, rate_flg))
4291 return false;
4292
db9c64cf
JB		 4293 if (info->flags & RATE_INFO_FLAGS_MCS) {
4294 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
4295 return false;
db9c64cf
JB		 4296 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4297 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4298 return false;
4299 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
4300 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
4301 return false;
4302 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
4303 return false;
db9c64cf
JB		 4304 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4305 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4306 return false;
4307 }
c8dcfd8a
FF		 4308
4309 nla_nest_end(msg, rate);
4310 return true;
c8dcfd8a
FF		 4311}
4312
119363c7
FF		 4313static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
4314 int id)
4315{
4316 void *attr;
4317 int i = 0;
4318
4319 if (!mask)
4320 return true;
4321
4322 attr = nla_nest_start(msg, id);
4323 if (!attr)
4324 return false;
4325
4326 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
4327 if (!(mask & BIT(i)))
4328 continue;
4329
4330 if (nla_put_u8(msg, i, signal[i]))
4331 return false;
4332 }
4333
4334 nla_nest_end(msg, attr);
4335
4336 return true;
4337}
4338
cf5ead82
JB		 4339static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
4340 u32 seq, int flags,
66266b3a
JL		 4341 struct cfg80211_registered_device *rdev,
4342 struct net_device *dev,
98b62183 4343 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 4344{
4345 void *hdr;
f4263c98 4346 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 4347
cf5ead82 4348 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 4349 if (!hdr)
4350 return -1;
4351
9360ffd1
DM		 4352 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4353 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
4354 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
4355 goto nla_put_failure;
f5ea9120 4356
2ec600d6
LCC		 4357 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
4358 if (!sinfoattr)
fd5b74dc 4359 goto nla_put_failure;
319090bf
JB		 4360
4361#define PUT_SINFO(attr, memb, type) do { \
d686b920 4362 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
739960f1 4363 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
319090bf
JB		 4364 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
4365 sinfo->memb)) \
4366 goto nla_put_failure; \
4367 } while (0)
d686b920
JB		 4368#define PUT_SINFO_U64(attr, memb) do { \
4369 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4370 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
4371 sinfo->memb, NL80211_STA_INFO_PAD)) \
4372 goto nla_put_failure; \
4373 } while (0)
319090bf
JB		 4374
4375 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
4376 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
4377
4378 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
4379 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 4380 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 4381 (u32)sinfo->rx_bytes))
9360ffd1 4382 goto nla_put_failure;
319090bf
JB		 4383
4384 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
4385 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 4386 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 4387 (u32)sinfo->tx_bytes))
4388 goto nla_put_failure;
319090bf 4389
d686b920
JB		 4390 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
4391 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
319090bf
JB		 4392 PUT_SINFO(LLID, llid, u16);
4393 PUT_SINFO(PLID, plid, u16);
4394 PUT_SINFO(PLINK_STATE, plink_state, u8);
d686b920 4395 PUT_SINFO_U64(RX_DURATION, rx_duration);
319090bf 4396
66266b3a
JL		 4397 switch (rdev->wiphy.signal_type) {
4398 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 4399 PUT_SINFO(SIGNAL, signal, u8);
4400 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 4401 break;
4402 default:
4403 break;
4404 }
319090bf 4405 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 4406 if (!nl80211_put_signal(msg, sinfo->chains,
4407 sinfo->chain_signal,
4408 NL80211_STA_INFO_CHAIN_SIGNAL))
4409 goto nla_put_failure;
4410 }
319090bf 4411 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 4412 if (!nl80211_put_signal(msg, sinfo->chains,
4413 sinfo->chain_signal_avg,
4414 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
4415 goto nla_put_failure;
4416 }
319090bf 4417 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 4418 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
4419 NL80211_STA_INFO_TX_BITRATE))
4420 goto nla_put_failure;
4421 }
319090bf 4422 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 4423 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
4424 NL80211_STA_INFO_RX_BITRATE))
420e7fab 4425 goto nla_put_failure;
420e7fab 4426 }
319090bf
JB		 4427
4428 PUT_SINFO(RX_PACKETS, rx_packets, u32);
4429 PUT_SINFO(TX_PACKETS, tx_packets, u32);
4430 PUT_SINFO(TX_RETRIES, tx_retries, u32);
4431 PUT_SINFO(TX_FAILED, tx_failed, u32);
4432 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
4433 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
4434 PUT_SINFO(LOCAL_PM, local_pm, u32);
4435 PUT_SINFO(PEER_PM, peer_pm, u32);
4436 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
4437
4438 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 4439 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
4440 if (!bss_param)
4441 goto nla_put_failure;
4442
9360ffd1
DM		 4443 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
4444 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
4445 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
4446 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
4447 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
4448 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
4449 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
4450 sinfo->bss_param.dtim_period) ||
4451 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
4452 sinfo->bss_param.beacon_interval))
4453 goto nla_put_failure;
f4263c98
PS		 4454
4455 nla_nest_end(msg, bss_param);
4456 }
319090bf 4457 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 4458 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
4459 sizeof(struct nl80211_sta_flag_update),
4460 &sinfo->sta_flags))
4461 goto nla_put_failure;
319090bf 4462
d686b920
JB		 4463 PUT_SINFO_U64(T_OFFSET, t_offset);
4464 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
4465 PUT_SINFO_U64(BEACON_RX, rx_beacon);
a76b1942 4466 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 4467
4468#undef PUT_SINFO
d686b920 4469#undef PUT_SINFO_U64
6de39808
JB		 4470
4471 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
4472 struct nlattr *tidsattr;
4473 int tid;
4474
4475 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
4476 if (!tidsattr)
4477 goto nla_put_failure;
4478
4479 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
4480 struct cfg80211_tid_stats *tidstats;
4481 struct nlattr *tidattr;
4482
4483 tidstats = &sinfo->pertid[tid];
4484
4485 if (!tidstats->filled)
4486 continue;
4487
4488 tidattr = nla_nest_start(msg, tid + 1);
4489 if (!tidattr)
4490 goto nla_put_failure;
4491
d686b920 4492#define PUT_TIDVAL_U64(attr, memb) do { \
6de39808 4493 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
d686b920
JB		 4494 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
4495 tidstats->memb, NL80211_TID_STATS_PAD)) \
6de39808
JB		 4496 goto nla_put_failure; \
4497 } while (0)
4498
d686b920
JB		 4499 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4500 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4501 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4502 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
6de39808 4503
d686b920 4504#undef PUT_TIDVAL_U64
6de39808
JB		 4505 nla_nest_end(msg, tidattr);
4506 }
4507
4508 nla_nest_end(msg, tidsattr);
4509 }
4510
2ec600d6 4511 nla_nest_end(msg, sinfoattr);
fd5b74dc 4512
319090bf 4513 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 4514 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4515 sinfo->assoc_req_ies))
4516 goto nla_put_failure;
50d3dfb7 4517
053c095a
JB		 4518 genlmsg_end(msg, hdr);
4519 return 0;
fd5b74dc
JB		 4520
4521 nla_put_failure:
bc3ed28c
TG		 4522 genlmsg_cancel(msg, hdr);
4523 return -EMSGSIZE;
fd5b74dc
JB		 4524}
4525
2ec600d6 4526static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 4527 struct netlink_callback *cb)
2ec600d6 4528{
2ec600d6 4529 struct station_info sinfo;
1b8ec87a 4530 struct cfg80211_registered_device *rdev;
97990a06 4531 struct wireless_dev *wdev;
2ec600d6 4532 u8 mac_addr[ETH_ALEN];
97990a06 4533 int sta_idx = cb->args[2];
2ec600d6 4534 int err;
2ec600d6 4535
ea90e0dc 4536 rtnl_lock();
1b8ec87a 4537 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893 4538 if (err)
ea90e0dc 4539 goto out_err;
bba95fef 4540
97990a06
JB		 4541 if (!wdev->netdev) {
4542 err = -EINVAL;
4543 goto out_err;
4544 }
4545
1b8ec87a 4546 if (!rdev->ops->dump_station) {
eec60b03 4547 err = -EOPNOTSUPP;
bba95fef
JB		 4548 goto out_err;
4549 }
4550
bba95fef 4551 while (1) {
f612cedf 4552 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 4553 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 4554 mac_addr, &sinfo);
bba95fef
JB		 4555 if (err == -ENOENT)
4556 break;
4557 if (err)
3b85875a 4558 goto out_err;
bba95fef 4559
cf5ead82 4560 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 4561 NETLINK_CB(cb->skb).portid,
bba95fef 4562 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 4563 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 4564 &sinfo) < 0)
4565 goto out;
4566
4567 sta_idx++;
4568 }
4569
bba95fef 4570 out:
97990a06 4571 cb->args[2] = sta_idx;
bba95fef 4572 err = skb->len;
bba95fef 4573 out_err:
ea90e0dc 4574 rtnl_unlock();
bba95fef
JB		 4575
4576 return err;
2ec600d6 4577}
fd5b74dc 4578
5727ef1b
JB		 4579static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4580{
4c476991
JB		 4581 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4582 struct net_device *dev = info->user_ptr[1];
2ec600d6 4583 struct station_info sinfo;
fd5b74dc
JB		 4584 struct sk_buff *msg;
4585 u8 *mac_addr = NULL;
4c476991 4586 int err;
fd5b74dc 4587
2ec600d6 4588 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 4589
4590 if (!info->attrs[NL80211_ATTR_MAC])
4591 return -EINVAL;
4592
4593 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4594
4c476991
JB		 4595 if (!rdev->ops->get_station)
4596 return -EOPNOTSUPP;
3b85875a 4597
e35e4d28 4598 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 4599 if (err)
4c476991 4600 return err;
2ec600d6 4601
fd2120ca 4602 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 4603 if (!msg)
4c476991 4604 return -ENOMEM;
fd5b74dc 4605
cf5ead82
JB		 4606 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4607 info->snd_portid, info->snd_seq, 0,
66266b3a 4608 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 4609 nlmsg_free(msg);
4610 return -ENOBUFS;
4611 }
3b85875a 4612
4c476991 4613 return genlmsg_reply(msg, info);
5727ef1b
JB		 4614}
4615
77ee7c89
JB		 4616int cfg80211_check_station_change(struct wiphy *wiphy,
4617 struct station_parameters *params,
4618 enum cfg80211_station_type statype)
4619{
e4208427
AB		 4620 if (params->listen_interval != -1 &&
4621 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4622 return -EINVAL;
e4208427 4623
17b94247
AB		 4624 if (params->support_p2p_ps != -1 &&
4625 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4626 return -EINVAL;
4627
c72e1140 4628 if (params->aid &&
e4208427
AB		 4629 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4630 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4631 return -EINVAL;
4632
4633 /* When you run into this, adjust the code below for the new flag */
4634 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4635
4636 switch (statype) {
eef941e6
TP		 4637 case CFG80211_STA_MESH_PEER_KERNEL:
4638 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4639 /*
4640 * No ignoring the TDLS flag here -- the userspace mesh
4641 * code doesn't have the bug of including TDLS in the
4642 * mask everywhere.
4643 */
4644 if (params->sta_flags_mask &
4645 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4646 BIT(NL80211_STA_FLAG_MFP) |
4647 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4648 return -EINVAL;
4649 break;
4650 case CFG80211_STA_TDLS_PEER_SETUP:
4651 case CFG80211_STA_TDLS_PEER_ACTIVE:
4652 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4653 return -EINVAL;
4654 /* ignore since it can't change */
4655 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4656 break;
4657 default:
4658 /* disallow mesh-specific things */
4659 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4660 return -EINVAL;
4661 if (params->local_pm)
4662 return -EINVAL;
4663 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4664 return -EINVAL;
4665 }
4666
4667 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4668 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4669 /* TDLS can't be set, ... */
4670 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4671 return -EINVAL;
4672 /*
4673 * ... but don't bother the driver with it. This works around
4674 * a hostapd/wpa_supplicant issue -- it always includes the
4675 * TLDS_PEER flag in the mask even for AP mode.
4676 */
4677 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4678 }
4679
47edb11b
AB		 4680 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4681 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4682 /* reject other things that can't change */
4683 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4684 return -EINVAL;
4685 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4686 return -EINVAL;
4687 if (params->supported_rates)
4688 return -EINVAL;
4689 if (params->ext_capab || params->ht_capa || params->vht_capa)
4690 return -EINVAL;
4691 }
4692
47edb11b
AB		 4693 if (statype != CFG80211_STA_AP_CLIENT &&
4694 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4695 if (params->vlan)
4696 return -EINVAL;
4697 }
4698
4699 switch (statype) {
4700 case CFG80211_STA_AP_MLME_CLIENT:
4701 /* Use this only for authorizing/unauthorizing a station */
4702 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4703 return -EOPNOTSUPP;
4704 break;
4705 case CFG80211_STA_AP_CLIENT:
47edb11b 4706 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4707 /* accept only the listed bits */
4708 if (params->sta_flags_mask &
4709 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4710 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4711 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4712 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4713 BIT(NL80211_STA_FLAG_WME) |
4714 BIT(NL80211_STA_FLAG_MFP)))
4715 return -EINVAL;
4716
4717 /* but authenticated/associated only if driver handles it */
4718 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4719 params->sta_flags_mask &
4720 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4721 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4722 return -EINVAL;
4723 break;
4724 case CFG80211_STA_IBSS:
4725 case CFG80211_STA_AP_STA:
4726 /* reject any changes other than AUTHORIZED */
4727 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4728 return -EINVAL;
4729 break;
4730 case CFG80211_STA_TDLS_PEER_SETUP:
4731 /* reject any changes other than AUTHORIZED or WME */
4732 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4733 BIT(NL80211_STA_FLAG_WME)))
4734 return -EINVAL;
4735 /* force (at least) rates when authorizing */
4736 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4737 !params->supported_rates)
4738 return -EINVAL;
4739 break;
4740 case CFG80211_STA_TDLS_PEER_ACTIVE:
4741 /* reject any changes */
4742 return -EINVAL;
eef941e6 4743 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4744 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4745 return -EINVAL;
4746 break;
eef941e6 4747 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4748 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4749 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4750 return -EINVAL;
4751 break;
4752 }
4753
06f7c88c
BL		 4754 /*
4755 * Older kernel versions ignored this attribute entirely, so don't
4756 * reject attempts to update it but mark it as unused instead so the
4757 * driver won't look at the data.
4758 */
4759 if (statype != CFG80211_STA_AP_CLIENT_UNASSOC &&
4760 statype != CFG80211_STA_TDLS_PEER_SETUP)
4761 params->opmode_notif_used = false;
4762
77ee7c89
JB		 4763 return 0;
4764}
4765EXPORT_SYMBOL(cfg80211_check_station_change);
4766
5727ef1b 4767/*
c258d2de 4768 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4769 */
80b99899
JB		 4770static struct net_device *get_vlan(struct genl_info *info,
4771 struct cfg80211_registered_device *rdev)
5727ef1b 4772{
463d0183 4773 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4774 struct net_device *v;
4775 int ret;
4776
4777 if (!vlanattr)
4778 return NULL;
4779
4780 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4781 if (!v)
4782 return ERR_PTR(-ENODEV);
4783
4784 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4785 ret = -EINVAL;
4786 goto error;
5727ef1b 4787 }
80b99899 4788
77ee7c89
JB		 4789 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4790 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4791 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4792 ret = -EINVAL;
4793 goto error;
4794 }
4795
80b99899
JB		 4796 if (!netif_running(v)) {
4797 ret = -ENETDOWN;
4798 goto error;
4799 }
4800
4801 return v;
4802 error:
4803 dev_put(v);
4804 return ERR_PTR(ret);
5727ef1b
JB		 4805}
4806
94e860f1
JB		 4807static const struct nla_policy
4808nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4809 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4810 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4811};
4812
ff276691
JB		 4813static int nl80211_parse_sta_wme(struct genl_info *info,
4814 struct station_parameters *params)
df881293 4815{
df881293
JM		 4816 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4817 struct nlattr *nla;
4818 int err;
4819
df881293
JM		 4820 /* parse WME attributes if present */
4821 if (!info->attrs[NL80211_ATTR_STA_WME])
4822 return 0;
4823
4824 nla = info->attrs[NL80211_ATTR_STA_WME];
4825 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
fe52145f 4826 nl80211_sta_wme_policy, info->extack);
df881293
JM		 4827 if (err)
4828 return err;
4829
4830 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4831 params->uapsd_queues = nla_get_u8(
4832 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4833 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4834 return -EINVAL;
4835
4836 if (tb[NL80211_STA_WME_MAX_SP])
4837 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4838
4839 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4840 return -EINVAL;
4841
4842 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4843
4844 return 0;
4845}
4846
c01fc9ad
SD		 4847static int nl80211_parse_sta_channel_info(struct genl_info *info,
4848 struct station_parameters *params)
4849{
4850 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4851 params->supported_channels =
4852 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4853 params->supported_channels_len =
4854 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4855 /*
4856 * Need to include at least one (first channel, number of
4857 * channels) tuple for each subband, and must have proper
4858 * tuples for the rest of the data as well.
4859 */
4860 if (params->supported_channels_len < 2)
4861 return -EINVAL;
4862 if (params->supported_channels_len % 2)
4863 return -EINVAL;
4864 }
4865
4866 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4867 params->supported_oper_classes =
4868 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4869 params->supported_oper_classes_len =
4870 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4871 /*
4872 * The value of the Length field of the Supported Operating
4873 * Classes element is between 2 and 253.
4874 */
4875 if (params->supported_oper_classes_len < 2 ||
4876 params->supported_oper_classes_len > 253)
4877 return -EINVAL;
4878 }
4879 return 0;
4880}
4881
ff276691
JB		 4882static int nl80211_set_station_tdls(struct genl_info *info,
4883 struct station_parameters *params)
4884{
c01fc9ad 4885 int err;
ff276691 4886 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4887 if (info->attrs[NL80211_ATTR_PEER_AID])
4888 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4889 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4890 params->ht_capa =
4891 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4892 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4893 params->vht_capa =
4894 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4895
c01fc9ad
SD		 4896 err = nl80211_parse_sta_channel_info(info, params);
4897 if (err)
4898 return err;
4899
ff276691
JB		 4900 return nl80211_parse_sta_wme(info, params);
4901}
4902
5727ef1b
JB		 4903static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4904{
4c476991 4905 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4906 struct net_device *dev = info->user_ptr[1];
5727ef1b 4907 struct station_parameters params;
77ee7c89
JB		 4908 u8 *mac_addr;
4909 int err;
5727ef1b
JB		 4910
4911 memset(&params, 0, sizeof(params));
4912
77ee7c89
JB		 4913 if (!rdev->ops->change_station)
4914 return -EOPNOTSUPP;
4915
e4208427
AB		 4916 /*
4917 * AID and listen_interval properties can be set only for unassociated
4918 * station. Include these parameters here and will check them in
4919 * cfg80211_check_station_change().
4920 */
a9bc31e4
AB		 4921 if (info->attrs[NL80211_ATTR_STA_AID])
4922 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4923
4924 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4925 params.listen_interval =
4926 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4927 else
4928 params.listen_interval = -1;
5727ef1b 4929
17b94247
AB		 4930 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4931 u8 tmp;
4932
4933 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4934 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4935 return -EINVAL;
4936
4937 params.support_p2p_ps = tmp;
4938 } else {
4939 params.support_p2p_ps = -1;
4940 }
4941
5727ef1b
JB		 4942 if (!info->attrs[NL80211_ATTR_MAC])
4943 return -EINVAL;
4944
4945 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4946
4947 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4948 params.supported_rates =
4949 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4950 params.supported_rates_len =
4951 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4952 }
4953
9d62a986
JM		 4954 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4955 params.capability =
4956 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4957 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4958 }
4959
4960 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4961 params.ext_capab =
4962 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4963 params.ext_capab_len =
4964 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4965 }
4966
bdd3ae3d 4967 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4968 return -EINVAL;
4969
f8bacc21 4970 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4971 params.plink_action =
f8bacc21
JB		 4972 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4973 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4974 return -EINVAL;
4975 }
2ec600d6 4976
f8bacc21 4977 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4978 params.plink_state =
f8bacc21
JB		 4979 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4980 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4981 return -EINVAL;
7d27a0ba
MH		 4982 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4983 params.peer_aid = nla_get_u16(
4984 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4985 if (params.peer_aid > IEEE80211_MAX_AID)
4986 return -EINVAL;
4987 }
f8bacc21
JB		 4988 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4989 }
9c3990aa 4990
3b1c5a53
MP		 4991 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4992 enum nl80211_mesh_power_mode pm = nla_get_u32(
4993 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4994
4995 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4996 pm > NL80211_MESH_POWER_MAX)
4997 return -EINVAL;
4998
4999 params.local_pm = pm;
5000 }
5001
06f7c88c
BL		 5002 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5003 params.opmode_notif_used = true;
5004 params.opmode_notif =
5005 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5006 }
5007
77ee7c89
JB		 5008 /* Include parameters for TDLS peer (will check later) */
5009 err = nl80211_set_station_tdls(info, &params);
5010 if (err)
5011 return err;
5012
5013 params.vlan = get_vlan(info, rdev);
5014 if (IS_ERR(params.vlan))
5015 return PTR_ERR(params.vlan);
5016
a97f4424
JB		 5017 switch (dev->ieee80211_ptr->iftype) {
5018 case NL80211_IFTYPE_AP:
5019 case NL80211_IFTYPE_AP_VLAN:
074ac8df 5020 case NL80211_IFTYPE_P2P_GO:
074ac8df 5021 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 5022 case NL80211_IFTYPE_STATION:
267335d6 5023 case NL80211_IFTYPE_ADHOC:
a97f4424 5024 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 5025 break;
5026 default:
77ee7c89
JB		 5027 err = -EOPNOTSUPP;
5028 goto out_put_vlan;
034d655e
JB		 5029 }
5030
77ee7c89 5031 /* driver will call cfg80211_check_station_change() */
e35e4d28 5032 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 5033
77ee7c89 5034 out_put_vlan:
5727ef1b
JB		 5035 if (params.vlan)
5036 dev_put(params.vlan);
3b85875a 5037
5727ef1b
JB		 5038 return err;
5039}
5040
5041static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
5042{
4c476991 5043 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 5044 int err;
4c476991 5045 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 5046 struct station_parameters params;
5047 u8 *mac_addr = NULL;
bda95eb1
JB		 5048 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
5049 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 5050
5051 memset(&params, 0, sizeof(params));
5052
984c311b
JB		 5053 if (!rdev->ops->add_station)
5054 return -EOPNOTSUPP;
5055
5727ef1b
JB		 5056 if (!info->attrs[NL80211_ATTR_MAC])
5057 return -EINVAL;
5058
5727ef1b
JB		 5059 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
5060 return -EINVAL;
5061
5062 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
5063 return -EINVAL;
5064
5e4b6f56
JM		 5065 if (!info->attrs[NL80211_ATTR_STA_AID] &&
5066 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 5067 return -EINVAL;
5068
5727ef1b
JB		 5069 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
5070 params.supported_rates =
5071 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5072 params.supported_rates_len =
5073 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5074 params.listen_interval =
5075 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 5076
17b94247
AB		 5077 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
5078 u8 tmp;
5079
5080 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
5081 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
5082 return -EINVAL;
5083
5084 params.support_p2p_ps = tmp;
5085 } else {
5086 /*
5087 * if not specified, assume it's supported for P2P GO interface,
5088 * and is NOT supported for AP interface
5089 */
5090 params.support_p2p_ps =
5091 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
5092 }
5093
3d124ea2 5094 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 5095 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 5096 else
5097 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 5098 if (!params.aid || params.aid > IEEE80211_MAX_AID)
5099 return -EINVAL;
51b50fbe 5100
9d62a986
JM		 5101 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
5102 params.capability =
5103 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
5104 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
5105 }
5106
5107 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
5108 params.ext_capab =
5109 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5110 params.ext_capab_len =
5111 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5112 }
5113
36aedc90
JM		 5114 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
5115 params.ht_capa =
5116 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 5117
f461be3e
MP		 5118 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
5119 params.vht_capa =
5120 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
5121
60f4a7b1
MK		 5122 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5123 params.opmode_notif_used = true;
5124 params.opmode_notif =
5125 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5126 }
5127
f8bacc21 5128 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 5129 params.plink_action =
f8bacc21
JB		 5130 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
5131 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
5132 return -EINVAL;
5133 }
96b78dff 5134
c01fc9ad
SD		 5135 err = nl80211_parse_sta_channel_info(info, &params);
5136 if (err)
5137 return err;
5138
ff276691
JB		 5139 err = nl80211_parse_sta_wme(info, &params);
5140 if (err)
5141 return err;
bdd90d5e 5142
bdd3ae3d 5143 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 5144 return -EINVAL;
5145
496fcc29
JB		 5146 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
5147 * as userspace might just pass through the capabilities from the IEs
5148 * directly, rather than enforcing this restriction and returning an
5149 * error in this case.
5150 */
5151 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
5152 params.ht_capa = NULL;
5153 params.vht_capa = NULL;
5154 }
5155
77ee7c89
JB		 5156 /* When you run into this, adjust the code below for the new flag */
5157 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
5158
bdd90d5e
JB		 5159 switch (dev->ieee80211_ptr->iftype) {
5160 case NL80211_IFTYPE_AP:
5161 case NL80211_IFTYPE_AP_VLAN:
5162 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 5163 /* ignore WME attributes if iface/sta is not capable */
5164 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
5165 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
5166 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 5167
bdd90d5e 5168 /* TDLS peers cannot be added */
3d124ea2
JM		 5169 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5170 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 5171 return -EINVAL;
bdd90d5e
JB		 5172 /* but don't bother the driver with it */
5173 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 5174
d582cffb
JB		 5175 /* allow authenticated/associated only if driver handles it */
5176 if (!(rdev->wiphy.features &
5177 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 5178 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 5179 return -EINVAL;
5180
bda95eb1
JB		 5181 /* Older userspace, or userspace wanting to be compatible with
5182 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
5183 * and assoc flags in the mask, but assumes the station will be
5184 * added as associated anyway since this was the required driver
5185 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
5186 * introduced.
5187 * In order to not bother drivers with this quirk in the API
5188 * set the flags in both the mask and set for new stations in
5189 * this case.
5190 */
5191 if (!(params.sta_flags_mask & auth_assoc)) {
5192 params.sta_flags_mask |= auth_assoc;
5193 params.sta_flags_set |= auth_assoc;
5194 }
5195
bdd90d5e
JB		 5196 /* must be last in here for error handling */
5197 params.vlan = get_vlan(info, rdev);
5198 if (IS_ERR(params.vlan))
5199 return PTR_ERR(params.vlan);
5200 break;
5201 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 5202 /* ignore uAPSD data */
5203 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5204
d582cffb
JB		 5205 /* associated is disallowed */
5206 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
5207 return -EINVAL;
bdd90d5e 5208 /* TDLS peers cannot be added */
3d124ea2
JM		 5209 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5210 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 5211 return -EINVAL;
5212 break;
5213 case NL80211_IFTYPE_STATION:
93d08f0b 5214 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 5215 /* ignore uAPSD data */
5216 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5217
77ee7c89
JB		 5218 /* these are disallowed */
5219 if (params.sta_flags_mask &
5220 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
5221 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 5222 return -EINVAL;
bdd90d5e
JB		 5223 /* Only TDLS peers can be added */
5224 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
5225 return -EINVAL;
5226 /* Can only add if TDLS ... */
5227 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
5228 return -EOPNOTSUPP;
5229 /* ... with external setup is supported */
5230 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
5231 return -EOPNOTSUPP;
77ee7c89
JB		 5232 /*
5233 * Older wpa_supplicant versions always mark the TDLS peer
5234 * as authorized, but it shouldn't yet be.
5235 */
5236 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 5237 break;
5238 default:
5239 return -EOPNOTSUPP;
c75786c9
EP		 5240 }
5241
bdd90d5e 5242 /* be aware of params.vlan when changing code here */
5727ef1b 5243
e35e4d28 5244 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 5245
5727ef1b
JB		 5246 if (params.vlan)
5247 dev_put(params.vlan);
5727ef1b
JB		 5248 return err;
5249}
5250
5251static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
5252{
4c476991
JB		 5253 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5254 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 5255 struct station_del_parameters params;
5256
5257 memset(&params, 0, sizeof(params));
5727ef1b
JB		 5258
5259 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 5260 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 5261
e80cf853 5262 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 5263 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 5264 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5265 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5266 return -EINVAL;
5727ef1b 5267
4c476991
JB		 5268 if (!rdev->ops->del_station)
5269 return -EOPNOTSUPP;
3b85875a 5270
98856866
JM		 5271 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
5272 params.subtype =
5273 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
5274 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
5275 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
5276 return -EINVAL;
5277 } else {
5278 /* Default to Deauthentication frame */
5279 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
5280 }
5281
5282 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
5283 params.reason_code =
5284 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5285 if (params.reason_code == 0)
5286 return -EINVAL; /* 0 is reserved */
5287 } else {
5288 /* Default to reason code 2 */
5289 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
5290 }
5291
89c771e5 5292 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 5293}
5294
15e47304 5295static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 5296 int flags, struct net_device *dev,
5297 u8 *dst, u8 *next_hop,
5298 struct mpath_info *pinfo)
5299{
5300 void *hdr;
5301 struct nlattr *pinfoattr;
5302
1ef4c850 5303 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 5304 if (!hdr)
5305 return -1;
5306
9360ffd1
DM		 5307 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5308 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
5309 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
5310 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
5311 goto nla_put_failure;
f5ea9120 5312
2ec600d6
LCC		 5313 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
5314 if (!pinfoattr)
5315 goto nla_put_failure;
9360ffd1
DM		 5316 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
5317 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
5318 pinfo->frame_qlen))
5319 goto nla_put_failure;
5320 if (((pinfo->filled & MPATH_INFO_SN) &&
5321 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
5322 ((pinfo->filled & MPATH_INFO_METRIC) &&
5323 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
5324 pinfo->metric)) ||
5325 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
5326 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
5327 pinfo->exptime)) ||
5328 ((pinfo->filled & MPATH_INFO_FLAGS) &&
5329 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
5330 pinfo->flags)) ||
5331 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
5332 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
5333 pinfo->discovery_timeout)) ||
5334 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
5335 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
5336 pinfo->discovery_retries)))
5337 goto nla_put_failure;
2ec600d6
LCC		 5338
5339 nla_nest_end(msg, pinfoattr);
5340
053c095a
JB		 5341 genlmsg_end(msg, hdr);
5342 return 0;
2ec600d6
LCC		 5343
5344 nla_put_failure:
bc3ed28c
TG		 5345 genlmsg_cancel(msg, hdr);
5346 return -EMSGSIZE;
2ec600d6
LCC		 5347}
5348
5349static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 5350 struct netlink_callback *cb)
2ec600d6 5351{
2ec600d6 5352 struct mpath_info pinfo;
1b8ec87a 5353 struct cfg80211_registered_device *rdev;
97990a06 5354 struct wireless_dev *wdev;
2ec600d6
LCC		 5355 u8 dst[ETH_ALEN];
5356 u8 next_hop[ETH_ALEN];
97990a06 5357 int path_idx = cb->args[2];
2ec600d6 5358 int err;
2ec600d6 5359
ea90e0dc 5360 rtnl_lock();
1b8ec87a 5361 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893 5362 if (err)
ea90e0dc 5363 goto out_err;
bba95fef 5364
1b8ec87a 5365 if (!rdev->ops->dump_mpath) {
eec60b03 5366 err = -EOPNOTSUPP;
bba95fef
JB		 5367 goto out_err;
5368 }
5369
97990a06 5370 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 5371 err = -EOPNOTSUPP;
0448b5fc 5372 goto out_err;
eec60b03
JM		 5373 }
5374
bba95fef 5375 while (1) {
1b8ec87a 5376 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 5377 next_hop, &pinfo);
bba95fef 5378 if (err == -ENOENT)
2ec600d6 5379 break;
bba95fef 5380 if (err)
3b85875a 5381 goto out_err;
2ec600d6 5382
15e47304 5383 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 5384 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5385 wdev->netdev, dst, next_hop,
bba95fef
JB		 5386 &pinfo) < 0)
5387 goto out;
2ec600d6 5388
bba95fef 5389 path_idx++;
2ec600d6 5390 }
2ec600d6 5391
bba95fef 5392 out:
97990a06 5393 cb->args[2] = path_idx;
bba95fef 5394 err = skb->len;
bba95fef 5395 out_err:
ea90e0dc 5396 rtnl_unlock();
bba95fef 5397 return err;
2ec600d6
LCC		 5398}
5399
5400static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
5401{
4c476991 5402 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 5403 int err;
4c476991 5404 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5405 struct mpath_info pinfo;
5406 struct sk_buff *msg;
5407 u8 *dst = NULL;
5408 u8 next_hop[ETH_ALEN];
5409
5410 memset(&pinfo, 0, sizeof(pinfo));
5411
5412 if (!info->attrs[NL80211_ATTR_MAC])
5413 return -EINVAL;
5414
5415 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5416
4c476991
JB		 5417 if (!rdev->ops->get_mpath)
5418 return -EOPNOTSUPP;
2ec600d6 5419
4c476991
JB		 5420 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5421 return -EOPNOTSUPP;
eec60b03 5422
e35e4d28 5423 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 5424 if (err)
4c476991 5425 return err;
2ec600d6 5426
fd2120ca 5427 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 5428 if (!msg)
4c476991 5429 return -ENOMEM;
2ec600d6 5430
15e47304 5431 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 5432 dev, dst, next_hop, &pinfo) < 0) {
5433 nlmsg_free(msg);
5434 return -ENOBUFS;
5435 }
3b85875a 5436
4c476991 5437 return genlmsg_reply(msg, info);
2ec600d6
LCC		 5438}
5439
5440static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
5441{
4c476991
JB		 5442 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5443 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5444 u8 *dst = NULL;
5445 u8 *next_hop = NULL;
5446
5447 if (!info->attrs[NL80211_ATTR_MAC])
5448 return -EINVAL;
5449
5450 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5451 return -EINVAL;
5452
5453 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5454 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5455
4c476991
JB		 5456 if (!rdev->ops->change_mpath)
5457 return -EOPNOTSUPP;
35a8efe1 5458
4c476991
JB		 5459 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5460 return -EOPNOTSUPP;
2ec600d6 5461
e35e4d28 5462 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 5463}
4c476991 5464
2ec600d6
LCC		 5465static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
5466{
4c476991
JB		 5467 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5468 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5469 u8 *dst = NULL;
5470 u8 *next_hop = NULL;
5471
5472 if (!info->attrs[NL80211_ATTR_MAC])
5473 return -EINVAL;
5474
5475 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5476 return -EINVAL;
5477
5478 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5479 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5480
4c476991
JB		 5481 if (!rdev->ops->add_mpath)
5482 return -EOPNOTSUPP;
35a8efe1 5483
4c476991
JB		 5484 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5485 return -EOPNOTSUPP;
2ec600d6 5486
e35e4d28 5487 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 5488}
5489
5490static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
5491{
4c476991
JB		 5492 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5493 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5494 u8 *dst = NULL;
5495
5496 if (info->attrs[NL80211_ATTR_MAC])
5497 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5498
4c476991
JB		 5499 if (!rdev->ops->del_mpath)
5500 return -EOPNOTSUPP;
3b85875a 5501
e35e4d28 5502 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 5503}
5504
66be7d2b
HR		 5505static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
5506{
5507 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5508 int err;
5509 struct net_device *dev = info->user_ptr[1];
5510 struct mpath_info pinfo;
5511 struct sk_buff *msg;
5512 u8 *dst = NULL;
5513 u8 mpp[ETH_ALEN];
5514
5515 memset(&pinfo, 0, sizeof(pinfo));
5516
5517 if (!info->attrs[NL80211_ATTR_MAC])
5518 return -EINVAL;
5519
5520 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5521
5522 if (!rdev->ops->get_mpp)
5523 return -EOPNOTSUPP;
5524
5525 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5526 return -EOPNOTSUPP;
5527
5528 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5529 if (err)
5530 return err;
5531
5532 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5533 if (!msg)
5534 return -ENOMEM;
5535
5536 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5537 dev, dst, mpp, &pinfo) < 0) {
5538 nlmsg_free(msg);
5539 return -ENOBUFS;
5540 }
5541
5542 return genlmsg_reply(msg, info);
5543}
5544
5545static int nl80211_dump_mpp(struct sk_buff *skb,
5546 struct netlink_callback *cb)
5547{
5548 struct mpath_info pinfo;
5549 struct cfg80211_registered_device *rdev;
5550 struct wireless_dev *wdev;
5551 u8 dst[ETH_ALEN];
5552 u8 mpp[ETH_ALEN];
5553 int path_idx = cb->args[2];
5554 int err;
5555
ea90e0dc 5556 rtnl_lock();
66be7d2b
HR		 5557 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5558 if (err)
ea90e0dc 5559 goto out_err;
66be7d2b
HR		 5560
5561 if (!rdev->ops->dump_mpp) {
5562 err = -EOPNOTSUPP;
5563 goto out_err;
5564 }
5565
5566 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5567 err = -EOPNOTSUPP;
5568 goto out_err;
5569 }
5570
5571 while (1) {
5572 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5573 mpp, &pinfo);
5574 if (err == -ENOENT)
5575 break;
5576 if (err)
5577 goto out_err;
5578
5579 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5580 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5581 wdev->netdev, dst, mpp,
5582 &pinfo) < 0)
5583 goto out;
5584
5585 path_idx++;
5586 }
5587
5588 out:
5589 cb->args[2] = path_idx;
5590 err = skb->len;
5591 out_err:
ea90e0dc 5592 rtnl_unlock();
66be7d2b
HR		 5593 return err;
5594}
5595
9f1ba906
JM		 5596static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5597{
4c476991
JB		 5598 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5599 struct net_device *dev = info->user_ptr[1];
c56589ed 5600 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 5601 struct bss_parameters params;
c56589ed 5602 int err;
9f1ba906
JM		 5603
5604 memset(&params, 0, sizeof(params));
5605 /* default to not changing parameters */
5606 params.use_cts_prot = -1;
5607 params.use_short_preamble = -1;
5608 params.use_short_slot_time = -1;
fd8aaaf3 5609 params.ap_isolate = -1;
50b12f59 5610 params.ht_opmode = -1;
53cabad7
JB		 5611 params.p2p_ctwindow = -1;
5612 params.p2p_opp_ps = -1;
9f1ba906
JM		 5613
5614 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5615 params.use_cts_prot =
5616 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5617 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5618 params.use_short_preamble =
5619 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5620 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5621 params.use_short_slot_time =
5622 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 5623 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5624 params.basic_rates =
5625 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5626 params.basic_rates_len =
5627 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5628 }
fd8aaaf3
FF		 5629 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5630 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 5631 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5632 params.ht_opmode =
5633 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 5634
53cabad7
JB		 5635 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5636 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5637 return -EINVAL;
5638 params.p2p_ctwindow =
5639 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5640 if (params.p2p_ctwindow < 0)
5641 return -EINVAL;
5642 if (params.p2p_ctwindow != 0 &&
5643 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5644 return -EINVAL;
5645 }
5646
5647 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5648 u8 tmp;
5649
5650 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5651 return -EINVAL;
5652 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5653 if (tmp > 1)
5654 return -EINVAL;
5655 params.p2p_opp_ps = tmp;
5656 if (params.p2p_opp_ps &&
5657 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5658 return -EINVAL;
5659 }
5660
4c476991
JB		 5661 if (!rdev->ops->change_bss)
5662 return -EOPNOTSUPP;
9f1ba906 5663
074ac8df 5664 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5665 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5666 return -EOPNOTSUPP;
3b85875a 5667
c56589ed
SW		 5668 wdev_lock(wdev);
5669 err = rdev_change_bss(rdev, dev, &params);
5670 wdev_unlock(wdev);
5671
5672 return err;
9f1ba906
JM		 5673}
5674
b2e1b302
LR		 5675static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5676{
b2e1b302 5677 char *data = NULL;
05050753 5678 bool is_indoor;
57b5ce07 5679 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5680 u32 owner_nlportid;
5681
80778f18
LR		 5682 /*
5683 * You should only get this when cfg80211 hasn't yet initialized
5684 * completely when built-in to the kernel right between the time
5685 * window between nl80211_init() and regulatory_init(), if that is
5686 * even possible.
5687 */
458f4f9e 5688 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5689 return -EINPROGRESS;
80778f18 5690
57b5ce07
LR		 5691 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5692 user_reg_hint_type =
5693 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5694 else
5695 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5696
5697 switch (user_reg_hint_type) {
5698 case NL80211_USER_REG_HINT_USER:
5699 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5700 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5701 return -EINVAL;
5702
5703 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5704 return regulatory_hint_user(data, user_reg_hint_type);
5705 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5706 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5707 owner_nlportid = info->snd_portid;
5708 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5709 } else {
5710 owner_nlportid = 0;
5711 is_indoor = true;
5712 }
5713
5714 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5715 default:
5716 return -EINVAL;
5717 }
b2e1b302
LR		 5718}
5719
1ea4ff3e
JB		 5720static int nl80211_reload_regdb(struct sk_buff *skb, struct genl_info *info)
5721{
5722 return reg_reload_regdb();
5723}
5724
24bdd9f4 5725static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5726 struct genl_info *info)
93da9cc1 5727{
4c476991 5728 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5729 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5730 struct wireless_dev *wdev = dev->ieee80211_ptr;
5731 struct mesh_config cur_params;
5732 int err = 0;
93da9cc1 5733 void *hdr;
5734 struct nlattr *pinfoattr;
5735 struct sk_buff *msg;
5736
29cbe68c
JB		 5737 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5738 return -EOPNOTSUPP;
5739
24bdd9f4 5740 if (!rdev->ops->get_mesh_config)
4c476991 5741 return -EOPNOTSUPP;
f3f92586 5742
29cbe68c
JB		 5743 wdev_lock(wdev);
5744 /* If not connected, get default parameters */
5745 if (!wdev->mesh_id_len)
5746 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5747 else
e35e4d28 5748 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5749 wdev_unlock(wdev);
5750
93da9cc1 5751 if (err)
4c476991 5752 return err;
93da9cc1 5753
5754 /* Draw up a netlink message to send back */
fd2120ca 5755 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5756 if (!msg)
5757 return -ENOMEM;
15e47304 5758 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5759 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5760 if (!hdr)
efe1cf0c 5761 goto out;
24bdd9f4 5762 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5763 if (!pinfoattr)
5764 goto nla_put_failure;
9360ffd1
DM		 5765 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5766 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5767 cur_params.dot11MeshRetryTimeout) ||
5768 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5769 cur_params.dot11MeshConfirmTimeout) ||
5770 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5771 cur_params.dot11MeshHoldingTimeout) ||
5772 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5773 cur_params.dot11MeshMaxPeerLinks) ||
5774 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5775 cur_params.dot11MeshMaxRetries) ||
5776 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5777 cur_params.dot11MeshTTL) ||
5778 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5779 cur_params.element_ttl) ||
5780 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5781 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5782 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5783 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5784 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5785 cur_params.dot11MeshHWMPmaxPREQretries) ||
5786 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5787 cur_params.path_refresh_time) ||
5788 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5789 cur_params.min_discovery_timeout) ||
5790 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5791 cur_params.dot11MeshHWMPactivePathTimeout) ||
5792 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5793 cur_params.dot11MeshHWMPpreqMinInterval) ||
5794 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5795 cur_params.dot11MeshHWMPperrMinInterval) ||
5796 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5797 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5798 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5799 cur_params.dot11MeshHWMPRootMode) ||
5800 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5801 cur_params.dot11MeshHWMPRannInterval) ||
5802 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5803 cur_params.dot11MeshGateAnnouncementProtocol) ||
5804 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5805 cur_params.dot11MeshForwarding) ||
335d5349 5806 nla_put_s32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5807 cur_params.rssi_threshold) ||
5808 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5809 cur_params.ht_opmode) ||
5810 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5811 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5812 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5813 cur_params.dot11MeshHWMProotInterval) ||
5814 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5815 cur_params.dot11MeshHWMPconfirmationInterval) ||
5816 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5817 cur_params.power_mode) ||
5818 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5819 cur_params.dot11MeshAwakeWindowDuration) ||
5820 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5821 cur_params.plink_timeout))
9360ffd1 5822 goto nla_put_failure;
93da9cc1 5823 nla_nest_end(msg, pinfoattr);
5824 genlmsg_end(msg, hdr);
4c476991 5825 return genlmsg_reply(msg, info);
93da9cc1 5826
3b85875a 5827 nla_put_failure:
93da9cc1 5828 genlmsg_cancel(msg, hdr);
efe1cf0c 5829 out:
d080e275 5830 nlmsg_free(msg);
4c476991 5831 return -ENOBUFS;
93da9cc1 5832}
5833
b54452b0 5834static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5835 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5836 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5837 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5838 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5839 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5840 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5841 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5842 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5843 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5844 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5845 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5846 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5847 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5848 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5849 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5850 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5851 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5852 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5853 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5854 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5855 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5856 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5857 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5858 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5859 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5860 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5861 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5862 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5863};
5864
c80d545d
JC		 5865static const struct nla_policy
5866 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5867 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5868 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5869 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5870 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5871 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5872 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5873 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5874 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5875 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5876};
5877
f151d9db
AB		 5878static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5879{
5880 u8 val = nla_get_u8(nla);
5881 if (val < min || val > max)
5882 return -EINVAL;
5883 *out = val;
5884 return 0;
5885}
5886
5887static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5888{
5889 u8 val = nla_get_u8(nla);
5890 if (val < min || val > max)
5891 return -EINVAL;
5892 *out = val;
5893 return 0;
5894}
5895
5896static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5897{
5898 u16 val = nla_get_u16(nla);
5899 if (val < min || val > max)
5900 return -EINVAL;
5901 *out = val;
5902 return 0;
5903}
5904
5905static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5906{
5907 u32 val = nla_get_u32(nla);
5908 if (val < min || val > max)
5909 return -EINVAL;
5910 *out = val;
5911 return 0;
5912}
5913
5914static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5915{
5916 s32 val = nla_get_s32(nla);
5917 if (val < min || val > max)
5918 return -EINVAL;
5919 *out = val;
5920 return 0;
5921}
5922
ff9a71af
JB		 5923static int nl80211_check_power_mode(const struct nlattr *nla,
5924 enum nl80211_mesh_power_mode min,
5925 enum nl80211_mesh_power_mode max,
5926 enum nl80211_mesh_power_mode *out)
5927{
5928 u32 val = nla_get_u32(nla);
5929 if (val < min || val > max)
5930 return -EINVAL;
5931 *out = val;
5932 return 0;
5933}
5934
24bdd9f4 5935static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5936 struct mesh_config *cfg,
5937 u32 *mask_out)
93da9cc1 5938{
93da9cc1 5939 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5940 u32 mask = 0;
9757235f 5941 u16 ht_opmode;
93da9cc1 5942
ea54fba2
MP		 5943#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5944do { \
5945 if (tb[attr]) { \
f151d9db 5946 if (fn(tb[attr], min, max, &cfg->param)) \
ea54fba2 5947 return -EINVAL; \
ea54fba2
MP		 5948 mask |= (1 << (attr - 1)); \
5949 } \
5950} while (0)
bd90fdcc 5951
24bdd9f4 5952 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5953 return -EINVAL;
5954 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5955 info->attrs[NL80211_ATTR_MESH_CONFIG],
fe52145f 5956 nl80211_meshconf_params_policy, info->extack))
93da9cc1 5957 return -EINVAL;
5958
93da9cc1 5959 /* This makes sure that there aren't more than 32 mesh config
5960 * parameters (otherwise our bitfield scheme would not work.) */
5961 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5962
5963 /* Fill in the params struct */
ea54fba2 5964 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea 5965 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
f151d9db 5966 nl80211_check_u16);
ea54fba2 5967 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea 5968 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
f151d9db 5969 nl80211_check_u16);
ea54fba2 5970 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea 5971 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
f151d9db 5972 nl80211_check_u16);
ea54fba2 5973 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea 5974 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
f151d9db 5975 nl80211_check_u16);
ea54fba2 5976 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea 5977 mask, NL80211_MESHCONF_MAX_RETRIES,
f151d9db 5978 nl80211_check_u8);
ea54fba2 5979 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
f151d9db 5980 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
ea54fba2 5981 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea 5982 mask, NL80211_MESHCONF_ELEMENT_TTL,
f151d9db 5983 nl80211_check_u8);
ea54fba2 5984 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea 5985 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
f151d9db 5986 nl80211_check_bool);
ea54fba2
MP		 5987 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5988 1, 255, mask,
a4f606ea 5989 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
f151d9db 5990 nl80211_check_u32);
ea54fba2 5991 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea 5992 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
f151d9db 5993 nl80211_check_u8);
ea54fba2 5994 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea 5995 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
f151d9db 5996 nl80211_check_u32);
ea54fba2 5997 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea 5998 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
f151d9db 5999 nl80211_check_u16);
ea54fba2
MP		 6000 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
6001 1, 65535, mask,
a4f606ea 6002 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
f151d9db 6003 nl80211_check_u32);
93da9cc1 6004 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 6005 1, 65535, mask,
6006 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
f151d9db 6007 nl80211_check_u16);
dca7e943 6008 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 6009 1, 65535, mask,
6010 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
f151d9db 6011 nl80211_check_u16);
93da9cc1 6012 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 6013 dot11MeshHWMPnetDiameterTraversalTime,
6014 1, 65535, mask,
a4f606ea 6015 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
f151d9db 6016 nl80211_check_u16);
ea54fba2
MP		 6017 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
6018 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
f151d9db 6019 nl80211_check_u8);
ea54fba2
MP		 6020 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
6021 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
f151d9db 6022 nl80211_check_u16);
63c5723b 6023 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 6024 dot11MeshGateAnnouncementProtocol, 0, 1,
6025 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
f151d9db 6026 nl80211_check_bool);
ea54fba2 6027 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea 6028 mask, NL80211_MESHCONF_FORWARDING,
f151d9db 6029 nl80211_check_bool);
83374fe9 6030 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 6031 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
f151d9db 6032 nl80211_check_s32);
9757235f
MH		 6033 /*
6034 * Check HT operation mode based on
6035 * IEEE 802.11 2012 8.4.2.59 HT Operation element.
6036 */
6037 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
6038 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
6039
6040 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
6041 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
6042 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
6043 return -EINVAL;
6044
6045 if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
6046 (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
6047 return -EINVAL;
6048
6049 switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
6050 case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
6051 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
6052 if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
6053 return -EINVAL;
6054 break;
6055 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
6056 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
6057 if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
6058 return -EINVAL;
6059 break;
6060 }
6061 cfg->ht_opmode = ht_opmode;
fd551bac 6062 mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
9757235f 6063 }
ac1073a6 6064 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 6065 1, 65535, mask,
ac1073a6 6066 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
f151d9db 6067 nl80211_check_u32);
ea54fba2 6068 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 6069 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
f151d9db 6070 nl80211_check_u16);
728b19e5 6071 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 6072 dot11MeshHWMPconfirmationInterval,
6073 1, 65535, mask,
728b19e5 6074 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
f151d9db 6075 nl80211_check_u16);
3b1c5a53
MP		 6076 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
6077 NL80211_MESH_POWER_ACTIVE,
6078 NL80211_MESH_POWER_MAX,
6079 mask, NL80211_MESHCONF_POWER_MODE,
ff9a71af 6080 nl80211_check_power_mode);
3b1c5a53
MP		 6081 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
6082 0, 65535, mask,
f151d9db 6083 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
31f909a2 6084 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538 6085 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
f151d9db 6086 nl80211_check_u32);
bd90fdcc
JB		 6087 if (mask_out)
6088 *mask_out = mask;
c80d545d 6089
bd90fdcc
JB		 6090 return 0;
6091
6092#undef FILL_IN_MESH_PARAM_IF_SET
6093}
6094
c80d545d
JC		 6095static int nl80211_parse_mesh_setup(struct genl_info *info,
6096 struct mesh_setup *setup)
6097{
bb2798d4 6098 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 6099 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
6100
6101 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
6102 return -EINVAL;
6103 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
6104 info->attrs[NL80211_ATTR_MESH_SETUP],
fe52145f 6105 nl80211_mesh_setup_params_policy, info->extack))
c80d545d
JC		 6106 return -EINVAL;
6107
d299a1f2
JC		 6108 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
6109 setup->sync_method =
6110 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
6111 IEEE80211_SYNC_METHOD_VENDOR :
6112 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
6113
c80d545d
JC		 6114 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
6115 setup->path_sel_proto =
6116 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
6117 IEEE80211_PATH_PROTOCOL_VENDOR :
6118 IEEE80211_PATH_PROTOCOL_HWMP;
6119
6120 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
6121 setup->path_metric =
6122 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
6123 IEEE80211_PATH_METRIC_VENDOR :
6124 IEEE80211_PATH_METRIC_AIRTIME;
6125
581a8b0f 6126 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 6127 struct nlattr *ieattr =
581a8b0f 6128 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 6129 if (!is_valid_ie_attr(ieattr))
6130 return -EINVAL;
581a8b0f
JC		 6131 setup->ie = nla_data(ieattr);
6132 setup->ie_len = nla_len(ieattr);
c80d545d 6133 }
bb2798d4
TP		 6134 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
6135 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
6136 return -EINVAL;
6137 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 6138 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
6139 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 6140 if (setup->is_secure)
6141 setup->user_mpm = true;
c80d545d 6142
6e16d90b
CT		 6143 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
6144 if (!setup->user_mpm)
6145 return -EINVAL;
6146 setup->auth_id =
6147 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
6148 }
6149
c80d545d
JC		 6150 return 0;
6151}
6152
24bdd9f4 6153static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 6154 struct genl_info *info)
bd90fdcc
JB		 6155{
6156 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6157 struct net_device *dev = info->user_ptr[1];
29cbe68c 6158 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 6159 struct mesh_config cfg;
6160 u32 mask;
6161 int err;
6162
29cbe68c
JB		 6163 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
6164 return -EOPNOTSUPP;
6165
24bdd9f4 6166 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 6167 return -EOPNOTSUPP;
6168
24bdd9f4 6169 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 6170 if (err)
6171 return err;
6172
29cbe68c
JB		 6173 wdev_lock(wdev);
6174 if (!wdev->mesh_id_len)
6175 err = -ENOLINK;
6176
6177 if (!err)
e35e4d28 6178 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 6179
6180 wdev_unlock(wdev);
6181
6182 return err;
93da9cc1 6183}
6184
ad30ca2c
AN		 6185static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
6186 struct sk_buff *msg)
f130347c 6187{
f130347c
LR		 6188 struct nlattr *nl_reg_rules;
6189 unsigned int i;
f130347c 6190
458f4f9e
JB		 6191 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
6192 (regdom->dfs_region &&
6193 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 6194 goto nla_put_failure;
458f4f9e 6195
f130347c
LR		 6196 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
6197 if (!nl_reg_rules)
ad30ca2c 6198 goto nla_put_failure;
f130347c 6199
458f4f9e 6200 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 6201 struct nlattr *nl_reg_rule;
6202 const struct ieee80211_reg_rule *reg_rule;
6203 const struct ieee80211_freq_range *freq_range;
6204 const struct ieee80211_power_rule *power_rule;
97524820 6205 unsigned int max_bandwidth_khz;
f130347c 6206
458f4f9e 6207 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 6208 freq_range = &reg_rule->freq_range;
6209 power_rule = &reg_rule->power_rule;
6210
6211 nl_reg_rule = nla_nest_start(msg, i);
6212 if (!nl_reg_rule)
ad30ca2c 6213 goto nla_put_failure;
f130347c 6214
97524820
JD		 6215 max_bandwidth_khz = freq_range->max_bandwidth_khz;
6216 if (!max_bandwidth_khz)
6217 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
6218 reg_rule);
6219
9360ffd1
DM		 6220 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
6221 reg_rule->flags) ||
6222 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
6223 freq_range->start_freq_khz) ||
6224 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
6225 freq_range->end_freq_khz) ||
6226 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 6227 max_bandwidth_khz) ||
9360ffd1
DM		 6228 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
6229 power_rule->max_antenna_gain) ||
6230 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 6231 power_rule->max_eirp) ||
6232 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
6233 reg_rule->dfs_cac_ms))
ad30ca2c 6234 goto nla_put_failure;
f130347c
LR		 6235
6236 nla_nest_end(msg, nl_reg_rule);
6237 }
6238
6239 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 6240 return 0;
6241
6242nla_put_failure:
6243 return -EMSGSIZE;
6244}
6245
6246static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
6247{
6248 const struct ieee80211_regdomain *regdom = NULL;
6249 struct cfg80211_registered_device *rdev;
6250 struct wiphy *wiphy = NULL;
6251 struct sk_buff *msg;
6252 void *hdr;
6253
6254 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6255 if (!msg)
6256 return -ENOBUFS;
6257
6258 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6259 NL80211_CMD_GET_REG);
6260 if (!hdr)
6261 goto put_failure;
6262
6263 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 6264 bool self_managed;
6265
ad30ca2c
AN		 6266 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6267 if (IS_ERR(rdev)) {
6268 nlmsg_free(msg);
6269 return PTR_ERR(rdev);
6270 }
6271
6272 wiphy = &rdev->wiphy;
1bdd716c
AN		 6273 self_managed = wiphy->regulatory_flags &
6274 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 6275 regdom = get_wiphy_regdom(wiphy);
6276
1bdd716c
AN		 6277 /* a self-managed-reg device must have a private regdom */
6278 if (WARN_ON(!regdom && self_managed)) {
6279 nlmsg_free(msg);
6280 return -EINVAL;
6281 }
6282
ad30ca2c
AN		 6283 if (regdom &&
6284 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6285 goto nla_put_failure;
6286 }
6287
6288 if (!wiphy && reg_last_request_cell_base() &&
6289 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6290 NL80211_USER_REG_HINT_CELL_BASE))
6291 goto nla_put_failure;
6292
6293 rcu_read_lock();
6294
6295 if (!regdom)
6296 regdom = rcu_dereference(cfg80211_regdomain);
6297
6298 if (nl80211_put_regdom(regdom, msg))
6299 goto nla_put_failure_rcu;
6300
6301 rcu_read_unlock();
f130347c
LR		 6302
6303 genlmsg_end(msg, hdr);
5fe231e8 6304 return genlmsg_reply(msg, info);
f130347c 6305
458f4f9e
JB		 6306nla_put_failure_rcu:
6307 rcu_read_unlock();
f130347c
LR		 6308nla_put_failure:
6309 genlmsg_cancel(msg, hdr);
efe1cf0c 6310put_failure:
d080e275 6311 nlmsg_free(msg);
5fe231e8 6312 return -EMSGSIZE;
f130347c
LR		 6313}
6314
ad30ca2c
AN		 6315static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
6316 u32 seq, int flags, struct wiphy *wiphy,
6317 const struct ieee80211_regdomain *regdom)
6318{
6319 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6320 NL80211_CMD_GET_REG);
6321
6322 if (!hdr)
6323 return -1;
6324
0a833c29 6325 genl_dump_check_consistent(cb, hdr);
ad30ca2c
AN		 6326
6327 if (nl80211_put_regdom(regdom, msg))
6328 goto nla_put_failure;
6329
6330 if (!wiphy && reg_last_request_cell_base() &&
6331 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6332 NL80211_USER_REG_HINT_CELL_BASE))
6333 goto nla_put_failure;
6334
6335 if (wiphy &&
6336 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6337 goto nla_put_failure;
6338
1bdd716c
AN		 6339 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
6340 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
6341 goto nla_put_failure;
6342
053c095a
JB		 6343 genlmsg_end(msg, hdr);
6344 return 0;
ad30ca2c
AN		 6345
6346nla_put_failure:
6347 genlmsg_cancel(msg, hdr);
6348 return -EMSGSIZE;
6349}
6350
6351static int nl80211_get_reg_dump(struct sk_buff *skb,
6352 struct netlink_callback *cb)
6353{
6354 const struct ieee80211_regdomain *regdom = NULL;
6355 struct cfg80211_registered_device *rdev;
6356 int err, reg_idx, start = cb->args[2];
6357
6358 rtnl_lock();
6359
6360 if (cfg80211_regdomain && start == 0) {
6361 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6362 NLM_F_MULTI, NULL,
6363 rtnl_dereference(cfg80211_regdomain));
6364 if (err < 0)
6365 goto out_err;
6366 }
6367
6368 /* the global regdom is idx 0 */
6369 reg_idx = 1;
6370 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
6371 regdom = get_wiphy_regdom(&rdev->wiphy);
6372 if (!regdom)
6373 continue;
6374
6375 if (++reg_idx <= start)
6376 continue;
6377
6378 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6379 NLM_F_MULTI, &rdev->wiphy, regdom);
6380 if (err < 0) {
6381 reg_idx--;
6382 break;
6383 }
6384 }
6385
6386 cb->args[2] = reg_idx;
6387 err = skb->len;
6388out_err:
6389 rtnl_unlock();
6390 return err;
6391}
6392
b6863036
JB		 6393#ifdef CONFIG_CFG80211_CRDA_SUPPORT
6394static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
6395 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6396 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6397 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6398 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6399 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6400 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6401 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
6402};
6403
6404static int parse_reg_rule(struct nlattr *tb[],
6405 struct ieee80211_reg_rule *reg_rule)
6406{
6407 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
6408 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
6409
6410 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
6411 return -EINVAL;
6412 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
6413 return -EINVAL;
6414 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
6415 return -EINVAL;
6416 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6417 return -EINVAL;
6418 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6419 return -EINVAL;
6420
6421 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
6422
6423 freq_range->start_freq_khz =
6424 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
6425 freq_range->end_freq_khz =
6426 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
6427 freq_range->max_bandwidth_khz =
6428 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
6429
6430 power_rule->max_eirp =
6431 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
6432
6433 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
6434 power_rule->max_antenna_gain =
6435 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
6436
6437 if (tb[NL80211_ATTR_DFS_CAC_TIME])
6438 reg_rule->dfs_cac_ms =
6439 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
6440
6441 return 0;
6442}
6443
b2e1b302
LR		 6444static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
6445{
6446 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
6447 struct nlattr *nl_reg_rule;
ea372c54
JB		 6448 char *alpha2;
6449 int rem_reg_rules, r;
b2e1b302 6450 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 6451 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 6452 struct ieee80211_regdomain *rd;
b2e1b302
LR		 6453
6454 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6455 return -EINVAL;
6456
6457 if (!info->attrs[NL80211_ATTR_REG_RULES])
6458 return -EINVAL;
6459
6460 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6461
8b60b078
LR		 6462 if (info->attrs[NL80211_ATTR_DFS_REGION])
6463 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
6464
b2e1b302 6465 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6466 rem_reg_rules) {
b2e1b302
LR		 6467 num_rules++;
6468 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 6469 return -EINVAL;
b2e1b302
LR		 6470 }
6471
e438768f
LR		 6472 if (!reg_is_valid_request(alpha2))
6473 return -EINVAL;
6474
b2e1b302 6475 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 6476 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 6477
6478 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 6479 if (!rd)
6480 return -ENOMEM;
b2e1b302
LR		 6481
6482 rd->n_reg_rules = num_rules;
6483 rd->alpha2[0] = alpha2[0];
6484 rd->alpha2[1] = alpha2[1];
6485
8b60b078
LR		 6486 /*
6487 * Disable DFS master mode if the DFS region was
6488 * not supported or known on this kernel.
6489 */
6490 if (reg_supported_dfs_region(dfs_region))
6491 rd->dfs_region = dfs_region;
6492
b2e1b302 6493 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6494 rem_reg_rules) {
bfe2c7b1 6495 r = nla_parse_nested(tb, NL80211_REG_RULE_ATTR_MAX,
fe52145f
JB		 6496 nl_reg_rule, reg_rule_policy,
6497 info->extack);
ae811e21
JB		 6498 if (r)
6499 goto bad_reg;
b2e1b302
LR		 6500 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
6501 if (r)
6502 goto bad_reg;
6503
6504 rule_idx++;
6505
d0e18f83
LR		 6506 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
6507 r = -EINVAL;
b2e1b302 6508 goto bad_reg;
d0e18f83 6509 }
b2e1b302
LR		 6510 }
6511
06627990
JB		 6512 /* set_regdom takes ownership of rd */
6513 return set_regdom(rd, REGD_SOURCE_CRDA);
d2372b31 6514 bad_reg:
b2e1b302 6515 kfree(rd);
d0e18f83 6516 return r;
b2e1b302 6517}
b6863036 6518#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 6519
83f5e2cf
JB		 6520static int validate_scan_freqs(struct nlattr *freqs)
6521{
6522 struct nlattr *attr1, *attr2;
6523 int n_channels = 0, tmp1, tmp2;
6524
d7f13f74
SD		 6525 nla_for_each_nested(attr1, freqs, tmp1)
6526 if (nla_len(attr1) != sizeof(u32))
6527 return 0;
6528
83f5e2cf
JB		 6529 nla_for_each_nested(attr1, freqs, tmp1) {
6530 n_channels++;
6531 /*
6532 * Some hardware has a limited channel list for
6533 * scanning, and it is pretty much nonsensical
6534 * to scan for a channel twice, so disallow that
6535 * and don't require drivers to check that the
6536 * channel list they get isn't longer than what
6537 * they can scan, as long as they can scan all
6538 * the channels they registered at once.
6539 */
6540 nla_for_each_nested(attr2, freqs, tmp2)
6541 if (attr1 != attr2 &&
6542 nla_get_u32(attr1) == nla_get_u32(attr2))
6543 return 0;
6544 }
6545
6546 return n_channels;
6547}
6548
57fbcce3 6549static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
38de03d2 6550{
57fbcce3 6551 return b < NUM_NL80211_BANDS && wiphy->bands[b];
38de03d2
AS		 6552}
6553
6554static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6555 struct cfg80211_bss_selection *bss_select)
6556{
6557 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6558 struct nlattr *nest;
6559 int err;
6560 bool found = false;
6561 int i;
6562
6563 /* only process one nested attribute */
6564 nest = nla_data(nla);
6565 if (!nla_ok(nest, nla_len(nest)))
6566 return -EINVAL;
6567
bfe2c7b1 6568 err = nla_parse_nested(attr, NL80211_BSS_SELECT_ATTR_MAX, nest,
fceb6435 6569 nl80211_bss_select_policy, NULL);
38de03d2
AS		 6570 if (err)
6571 return err;
6572
6573 /* only one attribute may be given */
6574 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6575 if (attr[i]) {
6576 if (found)
6577 return -EINVAL;
6578 found = true;
6579 }
6580 }
6581
6582 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6583
6584 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6585 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6586
6587 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6588 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6589 bss_select->param.band_pref =
6590 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6591 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6592 return -EINVAL;
6593 }
6594
6595 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6596 struct nl80211_bss_select_rssi_adjust *adj_param;
6597
6598 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6599 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6600 bss_select->param.adjust.band = adj_param->band;
6601 bss_select->param.adjust.delta = adj_param->delta;
6602 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6603 return -EINVAL;
6604 }
6605
6606 /* user-space did not provide behaviour attribute */
6607 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6608 return -EINVAL;
6609
6610 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6611 return -EINVAL;
6612
6613 return 0;
6614}
6615
ad2b26ab
JB		 6616static int nl80211_parse_random_mac(struct nlattr **attrs,
6617 u8 *mac_addr, u8 *mac_addr_mask)
6618{
6619 int i;
6620
6621 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 6622 eth_zero_addr(mac_addr);
6623 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 6624 mac_addr[0] = 0x2;
6625 mac_addr_mask[0] = 0x3;
6626
6627 return 0;
6628 }
6629
6630 /* need both or none */
6631 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6632 return -EINVAL;
6633
6634 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6635 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6636
6637 /* don't allow or configure an mcast address */
6638 if (!is_multicast_ether_addr(mac_addr_mask) ||
6639 is_multicast_ether_addr(mac_addr))
6640 return -EINVAL;
6641
6642 /*
6643 * allow users to pass a MAC address that has bits set outside
6644 * of the mask, but don't bother drivers with having to deal
6645 * with such bits
6646 */
6647 for (i = 0; i < ETH_ALEN; i++)
6648 mac_addr[i] &= mac_addr_mask[i];
6649
6650 return 0;
6651}
6652
34373d12
VT		 6653static bool cfg80211_off_channel_oper_allowed(struct wireless_dev *wdev)
6654{
6655 ASSERT_WDEV_LOCK(wdev);
6656
6657 if (!cfg80211_beaconing_iface_active(wdev))
6658 return true;
6659
6660 if (!(wdev->chandef.chan->flags & IEEE80211_CHAN_RADAR))
6661 return true;
6662
6663 return regulatory_pre_cac_allowed(wdev->wiphy);
6664}
6665
2d23d073
RZ		 6666static int
6667nl80211_check_scan_flags(struct wiphy *wiphy, struct wireless_dev *wdev,
6668 void *request, struct nlattr **attrs,
6669 bool is_sched_scan)
6670{
6671 u8 *mac_addr, *mac_addr_mask;
6672 u32 *flags;
6673 enum nl80211_feature_flags randomness_flag;
6674
6675 if (!attrs[NL80211_ATTR_SCAN_FLAGS])
6676 return 0;
6677
6678 if (is_sched_scan) {
6679 struct cfg80211_sched_scan_request *req = request;
6680
6681 randomness_flag = wdev ?
6682 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR :
6683 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6684 flags = &req->flags;
6685 mac_addr = req->mac_addr;
6686 mac_addr_mask = req->mac_addr_mask;
6687 } else {
6688 struct cfg80211_scan_request *req = request;
6689
6690 randomness_flag = NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
6691 flags = &req->flags;
6692 mac_addr = req->mac_addr;
6693 mac_addr_mask = req->mac_addr_mask;
6694 }
6695
6696 *flags = nla_get_u32(attrs[NL80211_ATTR_SCAN_FLAGS]);
6697
6698 if ((*flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6699 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN))
6700 return -EOPNOTSUPP;
6701
6702 if (*flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6703 int err;
6704
6705 if (!(wiphy->features & randomness_flag) ||
6706 (wdev && wdev->current_bss))
6707 return -EOPNOTSUPP;
6708
6709 err = nl80211_parse_random_mac(attrs, mac_addr, mac_addr_mask);
6710 if (err)
6711 return err;
6712 }
6713
6714 if ((*flags & NL80211_SCAN_FLAG_FILS_MAX_CHANNEL_TIME) &&
6715 !wiphy_ext_feature_isset(wiphy,
6716 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME))
6717 return -EOPNOTSUPP;
6718
6719 if ((*flags & NL80211_SCAN_FLAG_ACCEPT_BCAST_PROBE_RESP) &&
6720 !wiphy_ext_feature_isset(wiphy,
6721 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP))
6722 return -EOPNOTSUPP;
6723
6724 if ((*flags & NL80211_SCAN_FLAG_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION) &&
6725 !wiphy_ext_feature_isset(wiphy,
6726 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION))
6727 return -EOPNOTSUPP;
6728
6729 if ((*flags & NL80211_SCAN_FLAG_OCE_PROBE_REQ_HIGH_TX_RATE) &&
6730 !wiphy_ext_feature_isset(wiphy,
6731 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE))
6732 return -EOPNOTSUPP;
6733
6734 return 0;
6735}
6736
2a519311
JB		 6737static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6738{
4c476991 6739 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 6740 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 6741 struct cfg80211_scan_request *request;
2a519311
JB		 6742 struct nlattr *attr;
6743 struct wiphy *wiphy;
83f5e2cf 6744 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 6745 size_t ie_len;
2a519311 6746
f4a11bb0
JB		 6747 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6748 return -EINVAL;
6749
79c97e97 6750 wiphy = &rdev->wiphy;
2a519311 6751
cb3b7d87
AB		 6752 if (wdev->iftype == NL80211_IFTYPE_NAN)
6753 return -EOPNOTSUPP;
6754
4c476991
JB		 6755 if (!rdev->ops->scan)
6756 return -EOPNOTSUPP;
2a519311 6757
f9d15d16 6758 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 6759 err = -EBUSY;
6760 goto unlock;
6761 }
2a519311
JB		 6762
6763 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 6764 n_channels = validate_scan_freqs(
6765 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 6766 if (!n_channels) {
6767 err = -EINVAL;
6768 goto unlock;
6769 }
2a519311 6770 } else {
bdfbec2d 6771 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 6772 }
6773
6774 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6775 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6776 n_ssids++;
6777
f9f47529
JB		 6778 if (n_ssids > wiphy->max_scan_ssids) {
6779 err = -EINVAL;
6780 goto unlock;
6781 }
2a519311 6782
70692ad2
JM		 6783 if (info->attrs[NL80211_ATTR_IE])
6784 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6785 else
6786 ie_len = 0;
6787
f9f47529
JB		 6788 if (ie_len > wiphy->max_scan_ie_len) {
6789 err = -EINVAL;
6790 goto unlock;
6791 }
18a83659 6792
2a519311 6793 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 6794 + sizeof(*request->ssids) * n_ssids
6795 + sizeof(*request->channels) * n_channels
70692ad2 6796 + ie_len, GFP_KERNEL);
f9f47529
JB		 6797 if (!request) {
6798 err = -ENOMEM;
6799 goto unlock;
6800 }
2a519311 6801
2a519311 6802 if (n_ssids)
5ba63533 6803 request->ssids = (void *)&request->channels[n_channels];
2a519311 6804 request->n_ssids = n_ssids;
70692ad2 6805 if (ie_len) {
13874e4b 6806 if (n_ssids)
70692ad2
JM		 6807 request->ie = (void *)(request->ssids + n_ssids);
6808 else
6809 request->ie = (void *)(request->channels + n_channels);
6810 }
2a519311 6811
584991dc 6812 i = 0;
2a519311
JB		 6813 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6814 /* user specified, bail out if channel not found */
2a519311 6815 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6816 struct ieee80211_channel *chan;
6817
6818 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6819
6820 if (!chan) {
2a519311
JB		 6821 err = -EINVAL;
6822 goto out_free;
6823 }
584991dc
JB		 6824
6825 /* ignore disabled channels */
6826 if (chan->flags & IEEE80211_CHAN_DISABLED)
6827 continue;
6828
6829 request->channels[i] = chan;
2a519311
JB		 6830 i++;
6831 }
6832 } else {
57fbcce3 6833 enum nl80211_band band;
34850ab2 6834
2a519311 6835 /* all channels */
57fbcce3 6836 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2a519311 6837 int j;
7a087e74 6838
2a519311
JB		 6839 if (!wiphy->bands[band])
6840 continue;
6841 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6842 struct ieee80211_channel *chan;
6843
6844 chan = &wiphy->bands[band]->channels[j];
6845
6846 if (chan->flags & IEEE80211_CHAN_DISABLED)
6847 continue;
6848
6849 request->channels[i] = chan;
2a519311
JB		 6850 i++;
6851 }
6852 }
6853 }
6854
584991dc
JB		 6855 if (!i) {
6856 err = -EINVAL;
6857 goto out_free;
6858 }
6859
6860 request->n_channels = i;
6861
34373d12
VT		 6862 wdev_lock(wdev);
6863 if (!cfg80211_off_channel_oper_allowed(wdev)) {
6864 struct ieee80211_channel *chan;
6865
6866 if (request->n_channels != 1) {
6867 wdev_unlock(wdev);
6868 err = -EBUSY;
6869 goto out_free;
6870 }
6871
6872 chan = request->channels[0];
6873 if (chan->center_freq != wdev->chandef.chan->center_freq) {
6874 wdev_unlock(wdev);
6875 err = -EBUSY;
6876 goto out_free;
6877 }
6878 }
6879 wdev_unlock(wdev);
6880
2a519311 6881 i = 0;
13874e4b 6882 if (n_ssids) {
2a519311 6883 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6884 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6885 err = -EINVAL;
6886 goto out_free;
6887 }
57a27e1d 6888 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6889 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6890 i++;
6891 }
6892 }
6893
70692ad2
JM		 6894 if (info->attrs[NL80211_ATTR_IE]) {
6895 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6896 memcpy((void *)request->ie,
6897 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6898 request->ie_len);
6899 }
6900
57fbcce3 6901 for (i = 0; i < NUM_NL80211_BANDS; i++)
a401d2bb
JB		 6902 if (wiphy->bands[i])
6903 request->rates[i] =
6904 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6905
6906 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6907 nla_for_each_nested(attr,
6908 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6909 tmp) {
57fbcce3 6910 enum nl80211_band band = nla_type(attr);
34850ab2 6911
57fbcce3 6912 if (band < 0 || band >= NUM_NL80211_BANDS) {
34850ab2
JB		 6913 err = -EINVAL;
6914 goto out_free;
6915 }
1b09cd82
FF		 6916
6917 if (!wiphy->bands[band])
6918 continue;
6919
34850ab2
JB		 6920 err = ieee80211_get_ratemask(wiphy->bands[band],
6921 nla_data(attr),
6922 nla_len(attr),
6923 &request->rates[band]);
6924 if (err)
6925 goto out_free;
6926 }
6927 }
6928
1d76250b
AS		 6929 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6930 if (!wiphy_ext_feature_isset(wiphy,
6931 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6932 err = -EOPNOTSUPP;
6933 goto out_free;
6934 }
6935
6936 request->duration =
6937 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6938 request->duration_mandatory =
6939 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6940 }
6941
2d23d073
RZ		 6942 err = nl80211_check_scan_flags(wiphy, wdev, request, info->attrs,
6943 false);
6944 if (err)
6945 goto out_free;
ed473771 6946
e9f935e3
RM		 6947 request->no_cck =
6948 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6949
2fa436b3
VK		 6950 /* Initial implementation used NL80211_ATTR_MAC to set the specific
6951 * BSSID to scan for. This was problematic because that same attribute
6952 * was already used for another purpose (local random MAC address). The
6953 * NL80211_ATTR_BSSID attribute was added to fix this. For backwards
6954 * compatibility with older userspace components, also use the
6955 * NL80211_ATTR_MAC value here if it can be determined to be used for
6956 * the specific BSSID use case instead of the random MAC address
6957 * (NL80211_ATTR_SCAN_FLAGS is used to enable random MAC address use).
6958 */
6959 if (info->attrs[NL80211_ATTR_BSSID])
6960 memcpy(request->bssid,
6961 nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN);
6962 else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) &&
6963 info->attrs[NL80211_ATTR_MAC])
818965d3
JM		 6964 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6965 ETH_ALEN);
6966 else
6967 eth_broadcast_addr(request->bssid);
6968
fd014284 6969 request->wdev = wdev;
79c97e97 6970 request->wiphy = &rdev->wiphy;
15d6030b 6971 request->scan_start = jiffies;
2a519311 6972
79c97e97 6973 rdev->scan_req = request;
e35e4d28 6974 err = rdev_scan(rdev, request);
2a519311 6975
463d0183 6976 if (!err) {
fd014284
JB		 6977 nl80211_send_scan_start(rdev, wdev);
6978 if (wdev->netdev)
6979 dev_hold(wdev->netdev);
4c476991 6980 } else {
2a519311 6981 out_free:
79c97e97 6982 rdev->scan_req = NULL;
2a519311
JB		 6983 kfree(request);
6984 }
3b85875a 6985
f9f47529 6986 unlock:
2a519311
JB		 6987 return err;
6988}
6989
91d3ab46
VK		 6990static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6991{
6992 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6993 struct wireless_dev *wdev = info->user_ptr[1];
6994
6995 if (!rdev->ops->abort_scan)
6996 return -EOPNOTSUPP;
6997
6998 if (rdev->scan_msg)
6999 return 0;
7000
7001 if (!rdev->scan_req)
7002 return -ENOENT;
7003
7004 rdev_abort_scan(rdev, wdev);
7005 return 0;
7006}
7007
3b06d277
AS		 7008static int
7009nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
7010 struct cfg80211_sched_scan_request *request,
7011 struct nlattr **attrs)
7012{
7013 int tmp, err, i = 0;
7014 struct nlattr *attr;
7015
7016 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
7017 u32 interval;
7018
7019 /*
7020 * If scan plans are not specified,
5a88de53 7021 * %NL80211_ATTR_SCHED_SCAN_INTERVAL will be specified. In this
3b06d277
AS		 7022 * case one scan plan will be set with the specified scan
7023 * interval and infinite number of iterations.
7024 */
3b06d277
AS		 7025 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
7026 if (!interval)
7027 return -EINVAL;
7028
7029 request->scan_plans[0].interval =
7030 DIV_ROUND_UP(interval, MSEC_PER_SEC);
7031 if (!request->scan_plans[0].interval)
7032 return -EINVAL;
7033
7034 if (request->scan_plans[0].interval >
7035 wiphy->max_sched_scan_plan_interval)
7036 request->scan_plans[0].interval =
7037 wiphy->max_sched_scan_plan_interval;
7038
7039 return 0;
7040 }
7041
7042 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
7043 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
7044
7045 if (WARN_ON(i >= n_plans))
7046 return -EINVAL;
7047
bfe2c7b1 7048 err = nla_parse_nested(plan, NL80211_SCHED_SCAN_PLAN_MAX,
fceb6435 7049 attr, nl80211_plan_policy, NULL);
3b06d277
AS		 7050 if (err)
7051 return err;
7052
7053 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
7054 return -EINVAL;
7055
7056 request->scan_plans[i].interval =
7057 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
7058 if (!request->scan_plans[i].interval ||
7059 request->scan_plans[i].interval >
7060 wiphy->max_sched_scan_plan_interval)
7061 return -EINVAL;
7062
7063 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
7064 request->scan_plans[i].iterations =
7065 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
7066 if (!request->scan_plans[i].iterations ||
7067 (request->scan_plans[i].iterations >
7068 wiphy->max_sched_scan_plan_iterations))
7069 return -EINVAL;
7070 } else if (i < n_plans - 1) {
7071 /*
7072 * All scan plans but the last one must specify
7073 * a finite number of iterations
7074 */
7075 return -EINVAL;
7076 }
7077
7078 i++;
7079 }
7080
7081 /*
7082 * The last scan plan must not specify the number of
7083 * iterations, it is supposed to run infinitely
7084 */
7085 if (request->scan_plans[n_plans - 1].iterations)
7086 return -EINVAL;
7087
7088 return 0;
7089}
7090
256da02d 7091static struct cfg80211_sched_scan_request *
ad2b26ab 7092nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
aad1e812 7093 struct nlattr **attrs, int max_match_sets)
807f8a8c
LC		 7094{
7095 struct cfg80211_sched_scan_request *request;
807f8a8c 7096 struct nlattr *attr;
3b06d277 7097 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
57fbcce3 7098 enum nl80211_band band;
807f8a8c 7099 size_t ie_len;
a1f1c21c 7100 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 7101 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 7102
256da02d
LC		 7103 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
7104 return ERR_PTR(-EINVAL);
807f8a8c 7105
256da02d 7106 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 7107 n_channels = validate_scan_freqs(
256da02d 7108 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 7109 if (!n_channels)
256da02d 7110 return ERR_PTR(-EINVAL);
807f8a8c 7111 } else {
bdfbec2d 7112 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 7113 }
7114
256da02d
LC		 7115 if (attrs[NL80211_ATTR_SCAN_SSIDS])
7116 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 7117 tmp)
7118 n_ssids++;
7119
93b6aa69 7120 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 7121 return ERR_PTR(-EINVAL);
807f8a8c 7122
ea73cbce
JB		 7123 /*
7124 * First, count the number of 'real' matchsets. Due to an issue with
7125 * the old implementation, matchsets containing only the RSSI attribute
7126 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
7127 * RSSI for all matchsets, rather than their own matchset for reporting
7128 * all APs with a strong RSSI. This is needed to be compatible with
7129 * older userspace that treated a matchset with only the RSSI as the
7130 * global RSSI for all other matchsets - if there are other matchsets.
7131 */
256da02d 7132 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 7133 nla_for_each_nested(attr,
256da02d 7134 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 7135 tmp) {
7136 struct nlattr *rssi;
7137
bfe2c7b1
JB		 7138 err = nla_parse_nested(tb,
7139 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
fceb6435
JB		 7140 attr, nl80211_match_policy,
7141 NULL);
ea73cbce 7142 if (err)
256da02d 7143 return ERR_PTR(err);
3007e352
AVS		 7144
7145 /* SSID and BSSID are mutually exclusive */
7146 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] &&
7147 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID])
7148 return ERR_PTR(-EINVAL);
7149
ea73cbce 7150 /* add other standalone attributes here */
3007e352
AVS		 7151 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] ||
7152 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID]) {
ea73cbce
JB		 7153 n_match_sets++;
7154 continue;
7155 }
7156 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7157 if (rssi)
7158 default_match_rssi = nla_get_s32(rssi);
7159 }
7160 }
7161
7162 /* However, if there's no other matchset, add the RSSI one */
7163 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
7164 n_match_sets = 1;
a1f1c21c 7165
aad1e812 7166 if (n_match_sets > max_match_sets)
256da02d 7167 return ERR_PTR(-EINVAL);
a1f1c21c 7168
256da02d
LC		 7169 if (attrs[NL80211_ATTR_IE])
7170 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 7171 else
7172 ie_len = 0;
7173
5a865bad 7174 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 7175 return ERR_PTR(-EINVAL);
c10841ca 7176
3b06d277
AS		 7177 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
7178 /*
7179 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
7180 * each scan plan already specifies its own interval
7181 */
7182 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7183 return ERR_PTR(-EINVAL);
7184
7185 nla_for_each_nested(attr,
7186 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
7187 n_plans++;
7188 } else {
7189 /*
7190 * The scan interval attribute is kept for backward
7191 * compatibility. If no scan plans are specified and sched scan
7192 * interval is specified, one scan plan will be set with this
7193 * scan interval and infinite number of iterations.
7194 */
7195 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7196 return ERR_PTR(-EINVAL);
7197
7198 n_plans = 1;
7199 }
7200
7201 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
7202 return ERR_PTR(-EINVAL);
7203
bf95ecdb 7204 if (!wiphy_ext_feature_isset(
7205 wiphy, NL80211_EXT_FEATURE_SCHED_SCAN_RELATIVE_RSSI) &&
7206 (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] ||
7207 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]))
7208 return ERR_PTR(-EINVAL);
7209
807f8a8c 7210 request = kzalloc(sizeof(*request)
a2cd43c5 7211 + sizeof(*request->ssids) * n_ssids
a1f1c21c 7212 + sizeof(*request->match_sets) * n_match_sets
3b06d277 7213 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 7214 + sizeof(*request->channels) * n_channels
807f8a8c 7215 + ie_len, GFP_KERNEL);
256da02d
LC		 7216 if (!request)
7217 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 7218
7219 if (n_ssids)
7220 request->ssids = (void *)&request->channels[n_channels];
7221 request->n_ssids = n_ssids;
7222 if (ie_len) {
13874e4b 7223 if (n_ssids)
807f8a8c
LC		 7224 request->ie = (void *)(request->ssids + n_ssids);
7225 else
7226 request->ie = (void *)(request->channels + n_channels);
7227 }
7228
a1f1c21c
LC		 7229 if (n_match_sets) {
7230 if (request->ie)
7231 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 7232 else if (n_ssids)
a1f1c21c
LC		 7233 request->match_sets =
7234 (void *)(request->ssids + n_ssids);
7235 else
7236 request->match_sets =
7237 (void *)(request->channels + n_channels);
7238 }
7239 request->n_match_sets = n_match_sets;
7240
3b06d277
AS		 7241 if (n_match_sets)
7242 request->scan_plans = (void *)(request->match_sets +
7243 n_match_sets);
7244 else if (request->ie)
7245 request->scan_plans = (void *)(request->ie + ie_len);
7246 else if (n_ssids)
7247 request->scan_plans = (void *)(request->ssids + n_ssids);
7248 else
7249 request->scan_plans = (void *)(request->channels + n_channels);
7250
7251 request->n_scan_plans = n_plans;
7252
807f8a8c 7253 i = 0;
256da02d 7254 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 7255 /* user specified, bail out if channel not found */
7256 nla_for_each_nested(attr,
256da02d 7257 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 7258 tmp) {
7259 struct ieee80211_channel *chan;
7260
7261 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
7262
7263 if (!chan) {
7264 err = -EINVAL;
7265 goto out_free;
7266 }
7267
7268 /* ignore disabled channels */
7269 if (chan->flags & IEEE80211_CHAN_DISABLED)
7270 continue;
7271
7272 request->channels[i] = chan;
7273 i++;
7274 }
7275 } else {
7276 /* all channels */
57fbcce3 7277 for (band = 0; band < NUM_NL80211_BANDS; band++) {
807f8a8c 7278 int j;
7a087e74 7279
807f8a8c
LC		 7280 if (!wiphy->bands[band])
7281 continue;
7282 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
7283 struct ieee80211_channel *chan;
7284
7285 chan = &wiphy->bands[band]->channels[j];
7286
7287 if (chan->flags & IEEE80211_CHAN_DISABLED)
7288 continue;
7289
7290 request->channels[i] = chan;
7291 i++;
7292 }
7293 }
7294 }
7295
7296 if (!i) {
7297 err = -EINVAL;
7298 goto out_free;
7299 }
7300
7301 request->n_channels = i;
7302
7303 i = 0;
13874e4b 7304 if (n_ssids) {
256da02d 7305 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 7306 tmp) {
57a27e1d 7307 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 7308 err = -EINVAL;
7309 goto out_free;
7310 }
57a27e1d 7311 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 7312 memcpy(request->ssids[i].ssid, nla_data(attr),
7313 nla_len(attr));
807f8a8c
LC		 7314 i++;
7315 }
7316 }
7317
a1f1c21c 7318 i = 0;
256da02d 7319 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 7320 nla_for_each_nested(attr,
256da02d 7321 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 7322 tmp) {
3007e352 7323 struct nlattr *ssid, *bssid, *rssi;
a1f1c21c 7324
bfe2c7b1
JB		 7325 err = nla_parse_nested(tb,
7326 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
fceb6435
JB		 7327 attr, nl80211_match_policy,
7328 NULL);
ae811e21
JB		 7329 if (err)
7330 goto out_free;
4a4ab0d7 7331 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
3007e352
AVS		 7332 bssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID];
7333 if (ssid || bssid) {
ea73cbce
JB		 7334 if (WARN_ON(i >= n_match_sets)) {
7335 /* this indicates a programming error,
7336 * the loop above should have verified
7337 * things properly
7338 */
7339 err = -EINVAL;
7340 goto out_free;
7341 }
7342
3007e352
AVS		 7343 if (ssid) {
7344 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
7345 err = -EINVAL;
7346 goto out_free;
7347 }
7348 memcpy(request->match_sets[i].ssid.ssid,
7349 nla_data(ssid), nla_len(ssid));
7350 request->match_sets[i].ssid.ssid_len =
7351 nla_len(ssid);
7352 }
7353 if (bssid) {
7354 if (nla_len(bssid) != ETH_ALEN) {
7355 err = -EINVAL;
7356 goto out_free;
7357 }
7358 memcpy(request->match_sets[i].bssid,
7359 nla_data(bssid), ETH_ALEN);
a1f1c21c 7360 }
3007e352 7361
56ab364f 7362 /* special attribute - old implementation w/a */
ea73cbce
JB		 7363 request->match_sets[i].rssi_thold =
7364 default_match_rssi;
7365 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7366 if (rssi)
7367 request->match_sets[i].rssi_thold =
7368 nla_get_s32(rssi);
a1f1c21c
LC		 7369 }
7370 i++;
7371 }
ea73cbce
JB		 7372
7373 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 7374 if (i == 0 && n_match_sets)
ea73cbce
JB		 7375 request->match_sets[0].rssi_thold = default_match_rssi;
7376
7377 request->min_rssi_thold = INT_MAX;
7378 for (i = 0; i < n_match_sets; i++)
7379 request->min_rssi_thold =
7380 min(request->match_sets[i].rssi_thold,
7381 request->min_rssi_thold);
7382 } else {
7383 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 7384 }
7385
9900e484
JB		 7386 if (ie_len) {
7387 request->ie_len = ie_len;
807f8a8c 7388 memcpy((void *)request->ie,
256da02d 7389 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 7390 request->ie_len);
7391 }
7392
2d23d073
RZ		 7393 err = nl80211_check_scan_flags(wiphy, wdev, request, attrs, true);
7394 if (err)
7395 goto out_free;
ed473771 7396
9c748934
LC		 7397 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
7398 request->delay =
7399 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
7400
bf95ecdb 7401 if (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]) {
7402 request->relative_rssi = nla_get_s8(
7403 attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]);
7404 request->relative_rssi_set = true;
7405 }
7406
7407 if (request->relative_rssi_set &&
7408 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]) {
7409 struct nl80211_bss_select_rssi_adjust *rssi_adjust;
7410
7411 rssi_adjust = nla_data(
7412 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]);
7413 request->rssi_adjust.band = rssi_adjust->band;
7414 request->rssi_adjust.delta = rssi_adjust->delta;
7415 if (!is_band_valid(wiphy, request->rssi_adjust.band)) {
7416 err = -EINVAL;
7417 goto out_free;
7418 }
7419 }
7420
3b06d277
AS		 7421 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
7422 if (err)
7423 goto out_free;
7424
15d6030b 7425 request->scan_start = jiffies;
807f8a8c 7426
256da02d 7427 return request;
807f8a8c
LC		 7428
7429out_free:
7430 kfree(request);
256da02d
LC		 7431 return ERR_PTR(err);
7432}
7433
7434static int nl80211_start_sched_scan(struct sk_buff *skb,
7435 struct genl_info *info)
7436{
7437 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7438 struct net_device *dev = info->user_ptr[1];
ad2b26ab 7439 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 7440 struct cfg80211_sched_scan_request *sched_scan_req;
ca986ad9 7441 bool want_multi;
256da02d
LC		 7442 int err;
7443
ca986ad9 7444 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_start)
256da02d
LC		 7445 return -EOPNOTSUPP;
7446
ca986ad9
AVS		 7447 want_multi = info->attrs[NL80211_ATTR_SCHED_SCAN_MULTI];
7448 err = cfg80211_sched_scan_req_possible(rdev, want_multi);
7449 if (err)
7450 return err;
256da02d 7451
31a60ed1 7452 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
aad1e812
AVS		 7453 info->attrs,
7454 rdev->wiphy.max_match_sets);
31a60ed1
JR		 7455
7456 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 7457 if (err)
7458 goto out_err;
7459
ca986ad9
AVS		 7460 /* leave request id zero for legacy request
7461 * or if driver does not support multi-scheduled scan
7462 */
7463 if (want_multi && rdev->wiphy.max_sched_scan_reqs > 1) {
7464 while (!sched_scan_req->reqid)
7465 sched_scan_req->reqid = rdev->wiphy.cookie_counter++;
7466 }
7467
31a60ed1 7468 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 7469 if (err)
7470 goto out_free;
7471
31a60ed1
JR		 7472 sched_scan_req->dev = dev;
7473 sched_scan_req->wiphy = &rdev->wiphy;
7474
93a1e86c
JR		 7475 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
7476 sched_scan_req->owner_nlportid = info->snd_portid;
7477
ca986ad9 7478 cfg80211_add_sched_scan_req(rdev, sched_scan_req);
256da02d 7479
96b08fd6 7480 nl80211_send_sched_scan(sched_scan_req, NL80211_CMD_START_SCHED_SCAN);
256da02d
LC		 7481 return 0;
7482
7483out_free:
31a60ed1 7484 kfree(sched_scan_req);
256da02d 7485out_err:
807f8a8c
LC		 7486 return err;
7487}
7488
7489static int nl80211_stop_sched_scan(struct sk_buff *skb,
7490 struct genl_info *info)
7491{
ca986ad9 7492 struct cfg80211_sched_scan_request *req;
807f8a8c 7493 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ca986ad9 7494 u64 cookie;
807f8a8c 7495
ca986ad9 7496 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_stop)
807f8a8c
LC		 7497 return -EOPNOTSUPP;
7498
ca986ad9
AVS		 7499 if (info->attrs[NL80211_ATTR_COOKIE]) {
7500 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7501 return __cfg80211_stop_sched_scan(rdev, cookie, false);
7502 }
7503
7504 req = list_first_or_null_rcu(&rdev->sched_scan_req_list,
7505 struct cfg80211_sched_scan_request,
7506 list);
7507 if (!req || req->reqid ||
7508 (req->owner_nlportid &&
7509 req->owner_nlportid != info->snd_portid))
7510 return -ENOENT;
7511
7512 return cfg80211_stop_sched_scan_req(rdev, req, false);
807f8a8c
LC		 7513}
7514
04f39047
SW		 7515static int nl80211_start_radar_detection(struct sk_buff *skb,
7516 struct genl_info *info)
7517{
7518 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7519 struct net_device *dev = info->user_ptr[1];
7520 struct wireless_dev *wdev = dev->ieee80211_ptr;
7521 struct cfg80211_chan_def chandef;
55f7435c 7522 enum nl80211_dfs_regions dfs_region;
31559f35 7523 unsigned int cac_time_ms;
04f39047
SW		 7524 int err;
7525
55f7435c
LR		 7526 dfs_region = reg_get_dfs_region(wdev->wiphy);
7527 if (dfs_region == NL80211_DFS_UNSET)
7528 return -EINVAL;
7529
04f39047
SW		 7530 err = nl80211_parse_chandef(rdev, info, &chandef);
7531 if (err)
7532 return err;
7533
ff311bc1
SW		 7534 if (netif_carrier_ok(dev))
7535 return -EBUSY;
7536
04f39047
SW		 7537 if (wdev->cac_started)
7538 return -EBUSY;
7539
2beb6dab 7540 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 7541 wdev->iftype);
04f39047
SW		 7542 if (err < 0)
7543 return err;
7544
7545 if (err == 0)
7546 return -EINVAL;
7547
fe7c3a1f 7548 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 7549 return -EINVAL;
7550
7551 if (!rdev->ops->start_radar_detection)
7552 return -EOPNOTSUPP;
7553
31559f35
JD		 7554 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
7555 if (WARN_ON(!cac_time_ms))
7556 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
7557
a1056b1b 7558 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 7559 if (!err) {
9e0e2961 7560 wdev->chandef = chandef;
04f39047
SW		 7561 wdev->cac_started = true;
7562 wdev->cac_start_time = jiffies;
31559f35 7563 wdev->cac_time_ms = cac_time_ms;
04f39047 7564 }
04f39047
SW		 7565 return err;
7566}
7567
16ef1fe2
SW		 7568static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
7569{
7570 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7571 struct net_device *dev = info->user_ptr[1];
7572 struct wireless_dev *wdev = dev->ieee80211_ptr;
7573 struct cfg80211_csa_settings params;
7574 /* csa_attrs is defined static to avoid waste of stack size - this
7575 * function is called under RTNL lock, so this should not be a problem.
7576 */
7577 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 7578 int err;
ee4bc9e7 7579 bool need_new_beacon = false;
8d9de16f 7580 bool need_handle_dfs_flag = true;
9a774c78 7581 int len, i;
252e07ca 7582 u32 cs_count;
16ef1fe2
SW		 7583
7584 if (!rdev->ops->channel_switch ||
7585 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
7586 return -EOPNOTSUPP;
7587
ee4bc9e7
SW		 7588 switch (dev->ieee80211_ptr->iftype) {
7589 case NL80211_IFTYPE_AP:
7590 case NL80211_IFTYPE_P2P_GO:
7591 need_new_beacon = true;
8d9de16f
BB		 7592 /* For all modes except AP the handle_dfs flag needs to be
7593 * supplied to tell the kernel that userspace will handle radar
7594 * events when they happen. Otherwise a switch to a channel
7595 * requiring DFS will be rejected.
7596 */
7597 need_handle_dfs_flag = false;
ee4bc9e7
SW		 7598
7599 /* useless if AP is not running */
7600 if (!wdev->beacon_interval)
1ff79dfa 7601 return -ENOTCONN;
ee4bc9e7
SW		 7602 break;
7603 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 7604 if (!wdev->ssid_len)
7605 return -ENOTCONN;
7606 break;
c6da674a 7607 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 7608 if (!wdev->mesh_id_len)
7609 return -ENOTCONN;
ee4bc9e7
SW		 7610 break;
7611 default:
16ef1fe2 7612 return -EOPNOTSUPP;
ee4bc9e7 7613 }
16ef1fe2
SW		 7614
7615 memset(&params, 0, sizeof(params));
7616
7617 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7618 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
7619 return -EINVAL;
7620
7621 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 7622 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 7623 return -EINVAL;
7624
252e07ca
LC		 7625 /* Even though the attribute is u32, the specification says
7626 * u8, so let's make sure we don't overflow.
7627 */
7628 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
7629 if (cs_count > 255)
7630 return -EINVAL;
7631
7632 params.count = cs_count;
16ef1fe2 7633
ee4bc9e7
SW		 7634 if (!need_new_beacon)
7635 goto skip_beacons;
7636
16ef1fe2
SW		 7637 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
7638 if (err)
7639 return err;
7640
7641 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
7642 info->attrs[NL80211_ATTR_CSA_IES],
fe52145f 7643 nl80211_policy, info->extack);
16ef1fe2
SW		 7644 if (err)
7645 return err;
7646
7647 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
7648 if (err)
7649 return err;
7650
7651 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
7652 return -EINVAL;
7653
9a774c78
AO		 7654 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7655 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7656 return -EINVAL;
7657
9a774c78
AO		 7658 params.n_counter_offsets_beacon = len / sizeof(u16);
7659 if (rdev->wiphy.max_num_csa_counters &&
7660 (params.n_counter_offsets_beacon >
7661 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 7662 return -EINVAL;
7663
9a774c78
AO		 7664 params.counter_offsets_beacon =
7665 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7666
7667 /* sanity checks - counters should fit and be the same */
7668 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7669 u16 offset = params.counter_offsets_beacon[i];
7670
7671 if (offset >= params.beacon_csa.tail_len)
7672 return -EINVAL;
7673
7674 if (params.beacon_csa.tail[offset] != params.count)
7675 return -EINVAL;
7676 }
7677
16ef1fe2 7678 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 7679 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7680 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7681 return -EINVAL;
7682
9a774c78
AO		 7683 params.n_counter_offsets_presp = len / sizeof(u16);
7684 if (rdev->wiphy.max_num_csa_counters &&
ad5987b4 7685 (params.n_counter_offsets_presp >
9a774c78 7686 rdev->wiphy.max_num_csa_counters))
16ef1fe2 7687 return -EINVAL;
9a774c78
AO		 7688
7689 params.counter_offsets_presp =
7690 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7691
7692 /* sanity checks - counters should fit and be the same */
7693 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7694 u16 offset = params.counter_offsets_presp[i];
7695
7696 if (offset >= params.beacon_csa.probe_resp_len)
7697 return -EINVAL;
7698
7699 if (params.beacon_csa.probe_resp[offset] !=
7700 params.count)
7701 return -EINVAL;
7702 }
16ef1fe2
SW		 7703 }
7704
ee4bc9e7 7705skip_beacons:
16ef1fe2
SW		 7706 err = nl80211_parse_chandef(rdev, info, &params.chandef);
7707 if (err)
7708 return err;
7709
923b352f
AN		 7710 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
7711 wdev->iftype))
16ef1fe2
SW		 7712 return -EINVAL;
7713
2beb6dab
LC		 7714 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7715 &params.chandef,
7716 wdev->iftype);
7717 if (err < 0)
7718 return err;
7719
8d9de16f 7720 if (err > 0) {
2beb6dab 7721 params.radar_required = true;
8d9de16f
BB		 7722 if (need_handle_dfs_flag &&
7723 !nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS])) {
7724 return -EINVAL;
7725 }
7726 }
16ef1fe2 7727
16ef1fe2
SW		 7728 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7729 params.block_tx = true;
7730
c56589ed
SW		 7731 wdev_lock(wdev);
7732 err = rdev_channel_switch(rdev, dev, &params);
7733 wdev_unlock(wdev);
7734
7735 return err;
16ef1fe2
SW		 7736}
7737
9720bb3a
JB		 7738static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7739 u32 seq, int flags,
2a519311 7740 struct cfg80211_registered_device *rdev,
48ab905d
JB		 7741 struct wireless_dev *wdev,
7742 struct cfg80211_internal_bss *intbss)
2a519311 7743{
48ab905d 7744 struct cfg80211_bss *res = &intbss->pub;
9caf0364 7745 const struct cfg80211_bss_ies *ies;
2a519311
JB		 7746 void *hdr;
7747 struct nlattr *bss;
48ab905d
JB		 7748
7749 ASSERT_WDEV_LOCK(wdev);
2a519311 7750
15e47304 7751 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 7752 NL80211_CMD_NEW_SCAN_RESULTS);
7753 if (!hdr)
7754 return -1;
7755
0a833c29 7756 genl_dump_check_consistent(cb, hdr);
9720bb3a 7757
97990a06
JB		 7758 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7759 goto nla_put_failure;
7760 if (wdev->netdev &&
9360ffd1
DM		 7761 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7762 goto nla_put_failure;
2dad624e
ND		 7763 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7764 NL80211_ATTR_PAD))
97990a06 7765 goto nla_put_failure;
2a519311
JB		 7766
7767 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7768 if (!bss)
7769 goto nla_put_failure;
9360ffd1 7770 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 7771 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 7772 goto nla_put_failure;
9caf0364
JB		 7773
7774 rcu_read_lock();
0e227084
JB		 7775 /* indicate whether we have probe response data or not */
7776 if (rcu_access_pointer(res->proberesp_ies) &&
7777 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7778 goto fail_unlock_rcu;
7779
7780 /* this pointer prefers to be pointed to probe response data
7781 * but is always valid
7782 */
9caf0364 7783 ies = rcu_dereference(res->ies);
8cef2c9d 7784 if (ies) {
2dad624e
ND		 7785 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7786 NL80211_BSS_PAD))
8cef2c9d 7787 goto fail_unlock_rcu;
8cef2c9d
JB		 7788 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7789 ies->len, ies->data))
7790 goto fail_unlock_rcu;
9caf0364 7791 }
0e227084
JB		 7792
7793 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 7794 ies = rcu_dereference(res->beacon_ies);
0e227084 7795 if (ies && ies->from_beacon) {
2dad624e
ND		 7796 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7797 NL80211_BSS_PAD))
8cef2c9d
JB		 7798 goto fail_unlock_rcu;
7799 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7800 ies->len, ies->data))
7801 goto fail_unlock_rcu;
9caf0364
JB		 7802 }
7803 rcu_read_unlock();
7804
9360ffd1
DM		 7805 if (res->beacon_interval &&
7806 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7807 goto nla_put_failure;
7808 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7809 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 7810 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 7811 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7812 jiffies_to_msecs(jiffies - intbss->ts)))
7813 goto nla_put_failure;
2a519311 7814
1d76250b
AS		 7815 if (intbss->parent_tsf &&
7816 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7817 intbss->parent_tsf, NL80211_BSS_PAD) ||
7818 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7819 intbss->parent_bssid)))
7820 goto nla_put_failure;
7821
6e19bc4b 7822 if (intbss->ts_boottime &&
2dad624e
ND		 7823 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7824 intbss->ts_boottime, NL80211_BSS_PAD))
6e19bc4b
DS		 7825 goto nla_put_failure;
7826
77965c97 7827 switch (rdev->wiphy.signal_type) {
2a519311 7828 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 7829 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7830 goto nla_put_failure;
2a519311
JB		 7831 break;
7832 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 7833 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7834 goto nla_put_failure;
2a519311
JB		 7835 break;
7836 default:
7837 break;
7838 }
7839
48ab905d 7840 switch (wdev->iftype) {
074ac8df 7841 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 7842 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 7843 if (intbss == wdev->current_bss &&
7844 nla_put_u32(msg, NL80211_BSS_STATUS,
7845 NL80211_BSS_STATUS_ASSOCIATED))
7846 goto nla_put_failure;
48ab905d
JB		 7847 break;
7848 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 7849 if (intbss == wdev->current_bss &&
7850 nla_put_u32(msg, NL80211_BSS_STATUS,
7851 NL80211_BSS_STATUS_IBSS_JOINED))
7852 goto nla_put_failure;
48ab905d
JB		 7853 break;
7854 default:
7855 break;
7856 }
7857
2a519311
JB		 7858 nla_nest_end(msg, bss);
7859
053c095a
JB		 7860 genlmsg_end(msg, hdr);
7861 return 0;
2a519311 7862
8cef2c9d
JB		 7863 fail_unlock_rcu:
7864 rcu_read_unlock();
2a519311
JB		 7865 nla_put_failure:
7866 genlmsg_cancel(msg, hdr);
7867 return -EMSGSIZE;
7868}
7869
97990a06 7870static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 7871{
48ab905d 7872 struct cfg80211_registered_device *rdev;
2a519311 7873 struct cfg80211_internal_bss *scan;
48ab905d 7874 struct wireless_dev *wdev;
97990a06 7875 int start = cb->args[2], idx = 0;
2a519311
JB		 7876 int err;
7877
ea90e0dc 7878 rtnl_lock();
97990a06 7879 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
ea90e0dc
JB		 7880 if (err) {
7881 rtnl_unlock();
67748893 7882 return err;
ea90e0dc 7883 }
2a519311 7884
48ab905d
JB		 7885 wdev_lock(wdev);
7886 spin_lock_bh(&rdev->bss_lock);
7887 cfg80211_bss_expire(rdev);
7888
9720bb3a
JB		 7889 cb->seq = rdev->bss_generation;
7890
48ab905d 7891 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 7892 if (++idx <= start)
7893 continue;
9720bb3a 7894 if (nl80211_send_bss(skb, cb,
2a519311 7895 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 7896 rdev, wdev, scan) < 0) {
2a519311 7897 idx--;
67748893 7898 break;
2a519311
JB		 7899 }
7900 }
7901
48ab905d
JB		 7902 spin_unlock_bh(&rdev->bss_lock);
7903 wdev_unlock(wdev);
2a519311 7904
97990a06 7905 cb->args[2] = idx;
ea90e0dc 7906 rtnl_unlock();
2a519311 7907
67748893 7908 return skb->len;
2a519311
JB		 7909}
7910
15e47304 7911static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7912 int flags, struct net_device *dev,
7913 bool allow_radio_stats,
7914 struct survey_info *survey)
61fa713c
HS		 7915{
7916 void *hdr;
7917 struct nlattr *infoattr;
7918
11f78ac3
JB		 7919 /* skip radio stats if userspace didn't request them */
7920 if (!survey->channel && !allow_radio_stats)
7921 return 0;
7922
15e47304 7923 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7924 NL80211_CMD_NEW_SURVEY_RESULTS);
7925 if (!hdr)
7926 return -ENOMEM;
7927
9360ffd1
DM		 7928 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7929 goto nla_put_failure;
61fa713c
HS		 7930
7931 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7932 if (!infoattr)
7933 goto nla_put_failure;
7934
11f78ac3
JB		 7935 if (survey->channel &&
7936 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7937 survey->channel->center_freq))
7938 goto nla_put_failure;
7939
7940 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7941 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7942 goto nla_put_failure;
7943 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7944 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7945 goto nla_put_failure;
4ed20beb 7946 if ((survey->filled & SURVEY_INFO_TIME) &&
2dad624e
ND		 7947 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7948 survey->time, NL80211_SURVEY_INFO_PAD))
9360ffd1 7949 goto nla_put_failure;
4ed20beb 7950 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
2dad624e
ND		 7951 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7952 survey->time_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7953 goto nla_put_failure;
4ed20beb 7954 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
2dad624e
ND		 7955 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7956 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7957 goto nla_put_failure;
4ed20beb 7958 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
2dad624e
ND		 7959 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7960 survey->time_rx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7961 goto nla_put_failure;
4ed20beb 7962 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
2dad624e
ND		 7963 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7964 survey->time_tx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7965 goto nla_put_failure;
052536ab 7966 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
2dad624e
ND		 7967 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7968 survey->time_scan, NL80211_SURVEY_INFO_PAD))
052536ab 7969 goto nla_put_failure;
61fa713c
HS		 7970
7971 nla_nest_end(msg, infoattr);
7972
053c095a
JB		 7973 genlmsg_end(msg, hdr);
7974 return 0;
61fa713c
HS		 7975
7976 nla_put_failure:
7977 genlmsg_cancel(msg, hdr);
7978 return -EMSGSIZE;
7979}
7980
11f78ac3 7981static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c 7982{
c90c39da 7983 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
61fa713c 7984 struct survey_info survey;
1b8ec87a 7985 struct cfg80211_registered_device *rdev;
97990a06
JB		 7986 struct wireless_dev *wdev;
7987 int survey_idx = cb->args[2];
61fa713c 7988 int res;
11f78ac3 7989 bool radio_stats;
61fa713c 7990
ea90e0dc 7991 rtnl_lock();
1b8ec87a 7992 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893 7993 if (res)
ea90e0dc 7994 goto out_err;
61fa713c 7995
11f78ac3 7996 /* prepare_wdev_dump parsed the attributes */
c90c39da 7997 radio_stats = attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
11f78ac3 7998
97990a06
JB		 7999 if (!wdev->netdev) {
8000 res = -EINVAL;
8001 goto out_err;
8002 }
8003
1b8ec87a 8004 if (!rdev->ops->dump_survey) {
61fa713c
HS		 8005 res = -EOPNOTSUPP;
8006 goto out_err;
8007 }
8008
8009 while (1) {
1b8ec87a 8010 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 8011 if (res == -ENOENT)
8012 break;
8013 if (res)
8014 goto out_err;
8015
11f78ac3
JB		 8016 /* don't send disabled channels, but do send non-channel data */
8017 if (survey.channel &&
8018 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 8019 survey_idx++;
8020 continue;
8021 }
8022
61fa713c 8023 if (nl80211_send_survey(skb,
15e47304 8024 NETLINK_CB(cb->skb).portid,
61fa713c 8025 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 8026 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 8027 goto out;
8028 survey_idx++;
8029 }
8030
8031 out:
97990a06 8032 cb->args[2] = survey_idx;
61fa713c
HS		 8033 res = skb->len;
8034 out_err:
ea90e0dc 8035 rtnl_unlock();
61fa713c
HS		 8036 return res;
8037}
8038
b23aa676
SO		 8039static bool nl80211_valid_wpa_versions(u32 wpa_versions)
8040{
8041 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
8042 NL80211_WPA_VERSION_2));
8043}
8044
636a5d36
JM		 8045static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
8046{
4c476991
JB		 8047 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8048 struct net_device *dev = info->user_ptr[1];
19957bb3 8049 struct ieee80211_channel *chan;
11b6b5a4
JM		 8050 const u8 *bssid, *ssid, *ie = NULL, *auth_data = NULL;
8051 int err, ssid_len, ie_len = 0, auth_data_len = 0;
19957bb3 8052 enum nl80211_auth_type auth_type;
fffd0934 8053 struct key_parse key;
d5cdfacb 8054 bool local_state_change;
636a5d36 8055
f4a11bb0
JB		 8056 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8057 return -EINVAL;
8058
8059 if (!info->attrs[NL80211_ATTR_MAC])
8060 return -EINVAL;
8061
1778092e
JM		 8062 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
8063 return -EINVAL;
8064
19957bb3
JB		 8065 if (!info->attrs[NL80211_ATTR_SSID])
8066 return -EINVAL;
8067
8068 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8069 return -EINVAL;
8070
fffd0934
JB		 8071 err = nl80211_parse_key(info, &key);
8072 if (err)
8073 return err;
8074
8075 if (key.idx >= 0) {
e31b8213
JB		 8076 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
8077 return -EINVAL;
fffd0934
JB		 8078 if (!key.p.key || !key.p.key_len)
8079 return -EINVAL;
8080 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
8081 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
8082 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
8083 key.p.key_len != WLAN_KEY_LEN_WEP104))
8084 return -EINVAL;
b6b5555b 8085 if (key.idx > 3)
fffd0934
JB		 8086 return -EINVAL;
8087 } else {
8088 key.p.key_len = 0;
8089 key.p.key = NULL;
8090 }
8091
afea0b7a
JB		 8092 if (key.idx >= 0) {
8093 int i;
8094 bool ok = false;
7a087e74 8095
afea0b7a
JB		 8096 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
8097 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
8098 ok = true;
8099 break;
8100 }
8101 }
4c476991
JB		 8102 if (!ok)
8103 return -EINVAL;
afea0b7a
JB		 8104 }
8105
4c476991
JB		 8106 if (!rdev->ops->auth)
8107 return -EOPNOTSUPP;
636a5d36 8108
074ac8df 8109 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8110 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8111 return -EOPNOTSUPP;
eec60b03 8112
19957bb3 8113 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 8114 chan = nl80211_get_valid_chan(&rdev->wiphy,
8115 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8116 if (!chan)
4c476991 8117 return -EINVAL;
636a5d36 8118
19957bb3
JB		 8119 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8120 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 8121
8122 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8123 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8124 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8125 }
8126
19957bb3 8127 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 8128 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 8129 return -EINVAL;
636a5d36 8130
63181060
JM		 8131 if ((auth_type == NL80211_AUTHTYPE_SAE ||
8132 auth_type == NL80211_AUTHTYPE_FILS_SK ||
8133 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
8134 auth_type == NL80211_AUTHTYPE_FILS_PK) &&
11b6b5a4 8135 !info->attrs[NL80211_ATTR_AUTH_DATA])
e39e5b5e
JM		 8136 return -EINVAL;
8137
11b6b5a4 8138 if (info->attrs[NL80211_ATTR_AUTH_DATA]) {
63181060
JM		 8139 if (auth_type != NL80211_AUTHTYPE_SAE &&
8140 auth_type != NL80211_AUTHTYPE_FILS_SK &&
8141 auth_type != NL80211_AUTHTYPE_FILS_SK_PFS &&
8142 auth_type != NL80211_AUTHTYPE_FILS_PK)
e39e5b5e 8143 return -EINVAL;
11b6b5a4
JM		 8144 auth_data = nla_data(info->attrs[NL80211_ATTR_AUTH_DATA]);
8145 auth_data_len = nla_len(info->attrs[NL80211_ATTR_AUTH_DATA]);
e39e5b5e 8146 /* need to include at least Auth Transaction and Status Code */
11b6b5a4 8147 if (auth_data_len < 4)
e39e5b5e
JM		 8148 return -EINVAL;
8149 }
8150
d5cdfacb
JM		 8151 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8152
95de817b
JB		 8153 /*
8154 * Since we no longer track auth state, ignore
8155 * requests to only change local state.
8156 */
8157 if (local_state_change)
8158 return 0;
8159
91bf9b26
JB		 8160 wdev_lock(dev->ieee80211_ptr);
8161 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
8162 ssid, ssid_len, ie, ie_len,
8163 key.p.key, key.p.key_len, key.idx,
11b6b5a4 8164 auth_data, auth_data_len);
91bf9b26
JB		 8165 wdev_unlock(dev->ieee80211_ptr);
8166 return err;
636a5d36
JM		 8167}
8168
c0692b8f
JB		 8169static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
8170 struct genl_info *info,
3dc27d25
JB		 8171 struct cfg80211_crypto_settings *settings,
8172 int cipher_limit)
b23aa676 8173{
c0b2bbd8
JB		 8174 memset(settings, 0, sizeof(*settings));
8175
b23aa676
SO		 8176 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
8177
c0692b8f
JB		 8178 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
8179 u16 proto;
7a087e74 8180
c0692b8f
JB		 8181 proto = nla_get_u16(
8182 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
8183 settings->control_port_ethertype = cpu_to_be16(proto);
8184 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
8185 proto != ETH_P_PAE)
8186 return -EINVAL;
8187 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
8188 settings->control_port_no_encrypt = true;
8189 } else
8190 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
8191
b23aa676
SO		 8192 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
8193 void *data;
8194 int len, i;
8195
8196 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8197 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8198 settings->n_ciphers_pairwise = len / sizeof(u32);
8199
8200 if (len % sizeof(u32))
8201 return -EINVAL;
8202
3dc27d25 8203 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 8204 return -EINVAL;
8205
8206 memcpy(settings->ciphers_pairwise, data, len);
8207
8208 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 8209 if (!cfg80211_supported_cipher_suite(
8210 &rdev->wiphy,
b23aa676
SO		 8211 settings->ciphers_pairwise[i]))
8212 return -EINVAL;
8213 }
8214
8215 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
8216 settings->cipher_group =
8217 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 8218 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
8219 settings->cipher_group))
b23aa676
SO		 8220 return -EINVAL;
8221 }
8222
8223 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
8224 settings->wpa_versions =
8225 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
8226 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
8227 return -EINVAL;
8228 }
8229
8230 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
8231 void *data;
6d30240e 8232 int len;
b23aa676
SO		 8233
8234 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
8235 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
8236 settings->n_akm_suites = len / sizeof(u32);
8237
8238 if (len % sizeof(u32))
8239 return -EINVAL;
8240
1b9ca027
JM		 8241 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
8242 return -EINVAL;
8243
b23aa676 8244 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 8245 }
8246
91b5ab62
EP		 8247 if (info->attrs[NL80211_ATTR_PMK]) {
8248 if (nla_len(info->attrs[NL80211_ATTR_PMK]) != WLAN_PMK_LEN)
8249 return -EINVAL;
8250 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8251 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK))
8252 return -EINVAL;
8253 settings->psk = nla_data(info->attrs[NL80211_ATTR_PMK]);
8254 }
8255
b23aa676
SO		 8256 return 0;
8257}
8258
636a5d36
JM		 8259static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
8260{
4c476991
JB		 8261 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8262 struct net_device *dev = info->user_ptr[1];
f444de05 8263 struct ieee80211_channel *chan;
f62fab73
JB		 8264 struct cfg80211_assoc_request req = {};
8265 const u8 *bssid, *ssid;
8266 int err, ssid_len = 0;
636a5d36 8267
f4a11bb0
JB		 8268 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8269 return -EINVAL;
8270
8271 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 8272 !info->attrs[NL80211_ATTR_SSID] ||
8273 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 8274 return -EINVAL;
8275
4c476991
JB		 8276 if (!rdev->ops->assoc)
8277 return -EOPNOTSUPP;
636a5d36 8278
074ac8df 8279 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8280 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8281 return -EOPNOTSUPP;
eec60b03 8282
19957bb3 8283 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8284
664834de
JM		 8285 chan = nl80211_get_valid_chan(&rdev->wiphy,
8286 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8287 if (!chan)
4c476991 8288 return -EINVAL;
636a5d36 8289
19957bb3
JB		 8290 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8291 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 8292
8293 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 8294 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8295 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8296 }
8297
dc6382ce 8298 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 8299 enum nl80211_mfp mfp =
dc6382ce 8300 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 8301 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 8302 req.use_mfp = true;
4c476991
JB		 8303 else if (mfp != NL80211_MFP_NO)
8304 return -EINVAL;
dc6382ce
JM		 8305 }
8306
3e5d7649 8307 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 8308 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 8309
7e7c8926 8310 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 8311 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 8312
8313 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 8314 memcpy(&req.ht_capa_mask,
8315 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8316 sizeof(req.ht_capa_mask));
7e7c8926
BG		 8317
8318 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 8319 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 8320 return -EINVAL;
f62fab73
JB		 8321 memcpy(&req.ht_capa,
8322 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8323 sizeof(req.ht_capa));
7e7c8926
BG		 8324 }
8325
ee2aca34 8326 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 8327 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 8328
8329 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 8330 memcpy(&req.vht_capa_mask,
8331 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8332 sizeof(req.vht_capa_mask));
ee2aca34
JB		 8333
8334 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 8335 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 8336 return -EINVAL;
f62fab73
JB		 8337 memcpy(&req.vht_capa,
8338 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8339 sizeof(req.vht_capa));
ee2aca34
JB		 8340 }
8341
bab5ab7d 8342 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8343 if (!((rdev->wiphy.features &
8344 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8345 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8346 !wiphy_ext_feature_isset(&rdev->wiphy,
8347 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 8348 return -EINVAL;
8349 req.flags |= ASSOC_REQ_USE_RRM;
8350 }
8351
348bd456
JM		 8352 if (info->attrs[NL80211_ATTR_FILS_KEK]) {
8353 req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
8354 req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
8355 if (!info->attrs[NL80211_ATTR_FILS_NONCES])
8356 return -EINVAL;
8357 req.fils_nonces =
8358 nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
8359 }
8360
f62fab73 8361 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 8362 if (!err) {
8363 wdev_lock(dev->ieee80211_ptr);
bd2522b1 8364
f62fab73
JB		 8365 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
8366 ssid, ssid_len, &req);
bd2522b1
AZ		 8367
8368 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8369 dev->ieee80211_ptr->conn_owner_nlportid =
8370 info->snd_portid;
8371 memcpy(dev->ieee80211_ptr->disconnect_bssid,
8372 bssid, ETH_ALEN);
8373 }
8374
91bf9b26
JB		 8375 wdev_unlock(dev->ieee80211_ptr);
8376 }
636a5d36 8377
636a5d36
JM		 8378 return err;
8379}
8380
8381static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
8382{
4c476991
JB		 8383 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8384 struct net_device *dev = info->user_ptr[1];
19957bb3 8385 const u8 *ie = NULL, *bssid;
91bf9b26 8386 int ie_len = 0, err;
19957bb3 8387 u16 reason_code;
d5cdfacb 8388 bool local_state_change;
636a5d36 8389
f4a11bb0
JB		 8390 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8391 return -EINVAL;
8392
8393 if (!info->attrs[NL80211_ATTR_MAC])
8394 return -EINVAL;
8395
8396 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8397 return -EINVAL;
8398
4c476991
JB		 8399 if (!rdev->ops->deauth)
8400 return -EOPNOTSUPP;
636a5d36 8401
074ac8df 8402 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8403 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8404 return -EOPNOTSUPP;
eec60b03 8405
19957bb3 8406 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8407
19957bb3
JB		 8408 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8409 if (reason_code == 0) {
f4a11bb0 8410 /* Reason Code 0 is reserved */
4c476991 8411 return -EINVAL;
255e737e 8412 }
636a5d36
JM		 8413
8414 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8415 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8416 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8417 }
8418
d5cdfacb
JM		 8419 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8420
91bf9b26
JB		 8421 wdev_lock(dev->ieee80211_ptr);
8422 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
8423 local_state_change);
8424 wdev_unlock(dev->ieee80211_ptr);
8425 return err;
636a5d36
JM		 8426}
8427
8428static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
8429{
4c476991
JB		 8430 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8431 struct net_device *dev = info->user_ptr[1];
19957bb3 8432 const u8 *ie = NULL, *bssid;
91bf9b26 8433 int ie_len = 0, err;
19957bb3 8434 u16 reason_code;
d5cdfacb 8435 bool local_state_change;
636a5d36 8436
f4a11bb0
JB		 8437 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8438 return -EINVAL;
8439
8440 if (!info->attrs[NL80211_ATTR_MAC])
8441 return -EINVAL;
8442
8443 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8444 return -EINVAL;
8445
4c476991
JB		 8446 if (!rdev->ops->disassoc)
8447 return -EOPNOTSUPP;
636a5d36 8448
074ac8df 8449 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8450 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8451 return -EOPNOTSUPP;
eec60b03 8452
19957bb3 8453 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8454
19957bb3
JB		 8455 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8456 if (reason_code == 0) {
f4a11bb0 8457 /* Reason Code 0 is reserved */
4c476991 8458 return -EINVAL;
255e737e 8459 }
636a5d36
JM		 8460
8461 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8462 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8463 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8464 }
8465
d5cdfacb
JM		 8466 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8467
91bf9b26
JB		 8468 wdev_lock(dev->ieee80211_ptr);
8469 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
8470 local_state_change);
8471 wdev_unlock(dev->ieee80211_ptr);
8472 return err;
636a5d36
JM		 8473}
8474
dd5b4cc7
FF		 8475static bool
8476nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
57fbcce3 8477 int mcast_rate[NUM_NL80211_BANDS],
dd5b4cc7
FF		 8478 int rateval)
8479{
8480 struct wiphy *wiphy = &rdev->wiphy;
8481 bool found = false;
8482 int band, i;
8483
57fbcce3 8484 for (band = 0; band < NUM_NL80211_BANDS; band++) {
dd5b4cc7
FF		 8485 struct ieee80211_supported_band *sband;
8486
8487 sband = wiphy->bands[band];
8488 if (!sband)
8489 continue;
8490
8491 for (i = 0; i < sband->n_bitrates; i++) {
8492 if (sband->bitrates[i].bitrate == rateval) {
8493 mcast_rate[band] = i + 1;
8494 found = true;
8495 break;
8496 }
8497 }
8498 }
8499
8500 return found;
8501}
8502
04a773ad
JB		 8503static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
8504{
4c476991
JB		 8505 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8506 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 8507 struct cfg80211_ibss_params ibss;
8508 struct wiphy *wiphy;
fffd0934 8509 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 8510 int err;
8511
8e30bc55
JB		 8512 memset(&ibss, 0, sizeof(ibss));
8513
04a773ad
JB		 8514 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8515 return -EINVAL;
8516
683b6d3b 8517 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 8518 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8519 return -EINVAL;
8520
8e30bc55
JB		 8521 ibss.beacon_interval = 100;
8522
12d20fc9 8523 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8e30bc55
JB		 8524 ibss.beacon_interval =
8525 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9 8526
0c317a02
PK		 8527 err = cfg80211_validate_beacon_int(rdev, NL80211_IFTYPE_ADHOC,
8528 ibss.beacon_interval);
12d20fc9
PK		 8529 if (err)
8530 return err;
8e30bc55 8531
4c476991
JB		 8532 if (!rdev->ops->join_ibss)
8533 return -EOPNOTSUPP;
04a773ad 8534
4c476991
JB		 8535 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8536 return -EOPNOTSUPP;
04a773ad 8537
79c97e97 8538 wiphy = &rdev->wiphy;
04a773ad 8539
39193498 8540 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 8541 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 8542
8543 if (!is_valid_ether_addr(ibss.bssid))
8544 return -EINVAL;
8545 }
04a773ad
JB		 8546 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8547 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8548
8549 if (info->attrs[NL80211_ATTR_IE]) {
8550 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8551 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8552 }
8553
683b6d3b
JB		 8554 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
8555 if (err)
8556 return err;
04a773ad 8557
174e0cd2
IP		 8558 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
8559 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 8560 return -EINVAL;
8561
2f301ab2 8562 switch (ibss.chandef.width) {
bf372645
SW		 8563 case NL80211_CHAN_WIDTH_5:
8564 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 8565 case NL80211_CHAN_WIDTH_20_NOHT:
8566 break;
8567 case NL80211_CHAN_WIDTH_20:
8568 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 8569 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8570 return -EINVAL;
8571 break;
8572 case NL80211_CHAN_WIDTH_80:
8573 case NL80211_CHAN_WIDTH_80P80:
8574 case NL80211_CHAN_WIDTH_160:
8575 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8576 return -EINVAL;
8577 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8578 NL80211_EXT_FEATURE_VHT_IBSS))
8579 return -EINVAL;
8580 break;
2f301ab2 8581 default:
c04d6150 8582 return -EINVAL;
2f301ab2 8583 }
db9c64cf 8584
04a773ad 8585 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 8586 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
8587
fbd2c8dc
TP		 8588 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8589 u8 *rates =
8590 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8591 int n_rates =
8592 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8593 struct ieee80211_supported_band *sband =
683b6d3b 8594 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 8595
34850ab2
JB		 8596 err = ieee80211_get_ratemask(sband, rates, n_rates,
8597 &ibss.basic_rates);
8598 if (err)
8599 return err;
fbd2c8dc 8600 }
dd5b4cc7 8601
803768f5
SW		 8602 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8603 memcpy(&ibss.ht_capa_mask,
8604 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8605 sizeof(ibss.ht_capa_mask));
8606
8607 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8608 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8609 return -EINVAL;
8610 memcpy(&ibss.ht_capa,
8611 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8612 sizeof(ibss.ht_capa));
8613 }
8614
dd5b4cc7
FF		 8615 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8616 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
8617 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8618 return -EINVAL;
fbd2c8dc 8619
4c476991 8620 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 8621 bool no_ht = false;
8622
4c476991 8623 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 8624 info->attrs[NL80211_ATTR_KEYS],
8625 &no_ht);
4c476991
JB		 8626 if (IS_ERR(connkeys))
8627 return PTR_ERR(connkeys);
de7044ee 8628
3d9d1d66
JB		 8629 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
8630 no_ht) {
5e950a78 8631 kzfree(connkeys);
de7044ee
SM		 8632 return -EINVAL;
8633 }
4c476991 8634 }
04a773ad 8635
267335d6
AQ		 8636 ibss.control_port =
8637 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
8638
5336fa88
SW		 8639 ibss.userspace_handles_dfs =
8640 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
8641
4c476991 8642 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 8643 if (err)
b47f610b 8644 kzfree(connkeys);
04a773ad
JB		 8645 return err;
8646}
8647
8648static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
8649{
4c476991
JB		 8650 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8651 struct net_device *dev = info->user_ptr[1];
04a773ad 8652
4c476991
JB		 8653 if (!rdev->ops->leave_ibss)
8654 return -EOPNOTSUPP;
04a773ad 8655
4c476991
JB		 8656 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8657 return -EOPNOTSUPP;
04a773ad 8658
4c476991 8659 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 8660}
8661
f4e583c8
AQ		 8662static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
8663{
8664 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8665 struct net_device *dev = info->user_ptr[1];
57fbcce3 8666 int mcast_rate[NUM_NL80211_BANDS];
f4e583c8
AQ		 8667 u32 nla_rate;
8668 int err;
8669
8670 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 8671 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
8672 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 8673 return -EOPNOTSUPP;
8674
8675 if (!rdev->ops->set_mcast_rate)
8676 return -EOPNOTSUPP;
8677
8678 memset(mcast_rate, 0, sizeof(mcast_rate));
8679
8680 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
8681 return -EINVAL;
8682
8683 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
8684 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
8685 return -EINVAL;
8686
a1056b1b 8687 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 8688
8689 return err;
8690}
8691
ad7e718c
JB		 8692static struct sk_buff *
8693__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 8694 struct wireless_dev *wdev, int approxlen,
8695 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 8696 enum nl80211_attrs attr,
8697 const struct nl80211_vendor_cmd_info *info,
8698 gfp_t gfp)
ad7e718c
JB		 8699{
8700 struct sk_buff *skb;
8701 void *hdr;
8702 struct nlattr *data;
8703
8704 skb = nlmsg_new(approxlen + 100, gfp);
8705 if (!skb)
8706 return NULL;
8707
8708 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
8709 if (!hdr) {
8710 kfree_skb(skb);
8711 return NULL;
8712 }
8713
8714 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
8715 goto nla_put_failure;
567ffc35
JB		 8716
8717 if (info) {
8718 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
8719 info->vendor_id))
8720 goto nla_put_failure;
8721 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
8722 info->subcmd))
8723 goto nla_put_failure;
8724 }
8725
6c09e791 8726 if (wdev) {
2dad624e
ND		 8727 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
8728 wdev_id(wdev), NL80211_ATTR_PAD))
6c09e791
AK		 8729 goto nla_put_failure;
8730 if (wdev->netdev &&
8731 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
8732 wdev->netdev->ifindex))
8733 goto nla_put_failure;
8734 }
8735
ad7e718c 8736 data = nla_nest_start(skb, attr);
76e1fb4b
JB		 8737 if (!data)
8738 goto nla_put_failure;
ad7e718c
JB		 8739
8740 ((void **)skb->cb)[0] = rdev;
8741 ((void **)skb->cb)[1] = hdr;
8742 ((void **)skb->cb)[2] = data;
8743
8744 return skb;
8745
8746 nla_put_failure:
8747 kfree_skb(skb);
8748 return NULL;
8749}
f4e583c8 8750
e03ad6ea 8751struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 8752 struct wireless_dev *wdev,
e03ad6ea
JB		 8753 enum nl80211_commands cmd,
8754 enum nl80211_attrs attr,
8755 int vendor_event_idx,
8756 int approxlen, gfp_t gfp)
8757{
f26cbf40 8758 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 8759 const struct nl80211_vendor_cmd_info *info;
8760
8761 switch (cmd) {
8762 case NL80211_CMD_TESTMODE:
8763 if (WARN_ON(vendor_event_idx != -1))
8764 return NULL;
8765 info = NULL;
8766 break;
8767 case NL80211_CMD_VENDOR:
8768 if (WARN_ON(vendor_event_idx < 0 ||
8769 vendor_event_idx >= wiphy->n_vendor_events))
8770 return NULL;
8771 info = &wiphy->vendor_events[vendor_event_idx];
8772 break;
8773 default:
8774 WARN_ON(1);
8775 return NULL;
8776 }
8777
6c09e791 8778 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 8779 cmd, attr, info, gfp);
8780}
8781EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8782
8783void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8784{
8785 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8786 void *hdr = ((void **)skb->cb)[1];
8787 struct nlattr *data = ((void **)skb->cb)[2];
8788 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8789
bd8c78e7
JB		 8790 /* clear CB data for netlink core to own from now on */
8791 memset(skb->cb, 0, sizeof(skb->cb));
8792
e03ad6ea
JB		 8793 nla_nest_end(skb, data);
8794 genlmsg_end(skb, hdr);
8795
8796 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8797 mcgrp = NL80211_MCGRP_VENDOR;
8798
8799 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8800 mcgrp, gfp);
8801}
8802EXPORT_SYMBOL(__cfg80211_send_event_skb);
8803
aff89a9b 8804#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 8805static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8806{
4c476991 8807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 8808 struct wireless_dev *wdev =
8809 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 8810 int err;
8811
fc73f11f
DS		 8812 if (!rdev->ops->testmode_cmd)
8813 return -EOPNOTSUPP;
8814
8815 if (IS_ERR(wdev)) {
8816 err = PTR_ERR(wdev);
8817 if (err != -EINVAL)
8818 return err;
8819 wdev = NULL;
8820 } else if (wdev->wiphy != &rdev->wiphy) {
8821 return -EINVAL;
8822 }
8823
aff89a9b
JB		 8824 if (!info->attrs[NL80211_ATTR_TESTDATA])
8825 return -EINVAL;
8826
ad7e718c 8827 rdev->cur_cmd_info = info;
fc73f11f 8828 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 8829 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8830 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 8831 rdev->cur_cmd_info = NULL;
aff89a9b 8832
aff89a9b
JB		 8833 return err;
8834}
8835
71063f0e
WYG		 8836static int nl80211_testmode_dump(struct sk_buff *skb,
8837 struct netlink_callback *cb)
8838{
00918d33 8839 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 8840 int err;
8841 long phy_idx;
8842 void *data = NULL;
8843 int data_len = 0;
8844
5fe231e8
JB		 8845 rtnl_lock();
8846
71063f0e
WYG		 8847 if (cb->args[0]) {
8848 /*
8849 * 0 is a valid index, but not valid for args[0],
8850 * so we need to offset by 1.
8851 */
8852 phy_idx = cb->args[0] - 1;
a4956dca
LC		 8853
8854 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8855 if (!rdev) {
8856 err = -ENOENT;
8857 goto out_err;
8858 }
71063f0e 8859 } else {
c90c39da
JB		 8860 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
8861
71063f0e 8862 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
fceb6435
JB		 8863 attrbuf, nl80211_fam.maxattr,
8864 nl80211_policy, NULL);
71063f0e 8865 if (err)
5fe231e8 8866 goto out_err;
00918d33 8867
c90c39da 8868 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
2bd7e35d 8869 if (IS_ERR(rdev)) {
5fe231e8
JB		 8870 err = PTR_ERR(rdev);
8871 goto out_err;
00918d33 8872 }
2bd7e35d 8873 phy_idx = rdev->wiphy_idx;
2bd7e35d 8874
c90c39da
JB		 8875 if (attrbuf[NL80211_ATTR_TESTDATA])
8876 cb->args[1] = (long)attrbuf[NL80211_ATTR_TESTDATA];
71063f0e
WYG		 8877 }
8878
8879 if (cb->args[1]) {
8880 data = nla_data((void *)cb->args[1]);
8881 data_len = nla_len((void *)cb->args[1]);
8882 }
8883
00918d33 8884 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 8885 err = -EOPNOTSUPP;
8886 goto out_err;
8887 }
8888
8889 while (1) {
15e47304 8890 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 8891 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8892 NL80211_CMD_TESTMODE);
8893 struct nlattr *tmdata;
8894
cb35fba3
DC		 8895 if (!hdr)
8896 break;
8897
9360ffd1 8898 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 8899 genlmsg_cancel(skb, hdr);
8900 break;
8901 }
8902
8903 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8904 if (!tmdata) {
8905 genlmsg_cancel(skb, hdr);
8906 break;
8907 }
e35e4d28 8908 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 8909 nla_nest_end(skb, tmdata);
8910
8911 if (err == -ENOBUFS || err == -ENOENT) {
8912 genlmsg_cancel(skb, hdr);
8913 break;
8914 } else if (err) {
8915 genlmsg_cancel(skb, hdr);
8916 goto out_err;
8917 }
8918
8919 genlmsg_end(skb, hdr);
8920 }
8921
8922 err = skb->len;
8923 /* see above */
8924 cb->args[0] = phy_idx + 1;
8925 out_err:
5fe231e8 8926 rtnl_unlock();
71063f0e
WYG		 8927 return err;
8928}
aff89a9b
JB		 8929#endif
8930
b23aa676
SO		 8931static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8932{
4c476991
JB		 8933 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8934 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 8935 struct cfg80211_connect_params connect;
8936 struct wiphy *wiphy;
fffd0934 8937 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 8938 int err;
8939
8940 memset(&connect, 0, sizeof(connect));
8941
8942 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8943 return -EINVAL;
8944
8945 if (!info->attrs[NL80211_ATTR_SSID] ||
8946 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8947 return -EINVAL;
8948
8949 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8950 connect.auth_type =
8951 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8952 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8953 NL80211_CMD_CONNECT))
b23aa676
SO		 8954 return -EINVAL;
8955 } else
8956 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8957
8958 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8959
3a00df57
AS		 8960 if (info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS] &&
8961 !wiphy_ext_feature_isset(&rdev->wiphy,
8962 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
8963 return -EINVAL;
8964 connect.want_1x = info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS];
8965
c0692b8f 8966 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8967 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8968 if (err)
8969 return err;
b23aa676 8970
074ac8df 8971 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8972 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8973 return -EOPNOTSUPP;
b23aa676 8974
79c97e97 8975 wiphy = &rdev->wiphy;
b23aa676 8976
4486ea98
BS		 8977 connect.bg_scan_period = -1;
8978 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8979 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8980 connect.bg_scan_period =
8981 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8982 }
8983
b23aa676
SO		 8984 if (info->attrs[NL80211_ATTR_MAC])
8985 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8986 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8987 connect.bssid_hint =
8988 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8989 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8990 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8991
8992 if (info->attrs[NL80211_ATTR_IE]) {
8993 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8994 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8995 }
8996
cee00a95
JM		 8997 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8998 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
65026002
EG		 8999 if (connect.mfp == NL80211_MFP_OPTIONAL &&
9000 !wiphy_ext_feature_isset(&rdev->wiphy,
9001 NL80211_EXT_FEATURE_MFP_OPTIONAL))
9002 return -EOPNOTSUPP;
9003
cee00a95 9004 if (connect.mfp != NL80211_MFP_REQUIRED &&
65026002
EG		 9005 connect.mfp != NL80211_MFP_NO &&
9006 connect.mfp != NL80211_MFP_OPTIONAL)
cee00a95
JM		 9007 return -EINVAL;
9008 } else {
9009 connect.mfp = NL80211_MFP_NO;
9010 }
9011
ba6fbacf
JM		 9012 if (info->attrs[NL80211_ATTR_PREV_BSSID])
9013 connect.prev_bssid =
9014 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
9015
b23aa676 9016 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 9017 connect.channel = nl80211_get_valid_chan(
9018 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
9019 if (!connect.channel)
1df4a510
JM		 9020 return -EINVAL;
9021 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 9022 connect.channel_hint = nl80211_get_valid_chan(
9023 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
9024 if (!connect.channel_hint)
4c476991 9025 return -EINVAL;
b23aa676
SO		 9026 }
9027
fffd0934
JB		 9028 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
9029 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 9030 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 9031 if (IS_ERR(connkeys))
9032 return PTR_ERR(connkeys);
fffd0934
JB		 9033 }
9034
7e7c8926
BG		 9035 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
9036 connect.flags |= ASSOC_REQ_DISABLE_HT;
9037
9038 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
9039 memcpy(&connect.ht_capa_mask,
9040 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
9041 sizeof(connect.ht_capa_mask));
9042
9043 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 9044 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 9045 kzfree(connkeys);
7e7c8926 9046 return -EINVAL;
b4e4f47e 9047 }
7e7c8926
BG		 9048 memcpy(&connect.ht_capa,
9049 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
9050 sizeof(connect.ht_capa));
9051 }
9052
ee2aca34
JB		 9053 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
9054 connect.flags |= ASSOC_REQ_DISABLE_VHT;
9055
9056 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
9057 memcpy(&connect.vht_capa_mask,
9058 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
9059 sizeof(connect.vht_capa_mask));
9060
9061 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
9062 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 9063 kzfree(connkeys);
ee2aca34
JB		 9064 return -EINVAL;
9065 }
9066 memcpy(&connect.vht_capa,
9067 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
9068 sizeof(connect.vht_capa));
9069 }
9070
bab5ab7d 9071 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 9072 if (!((rdev->wiphy.features &
9073 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
9074 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
9075 !wiphy_ext_feature_isset(&rdev->wiphy,
9076 NL80211_EXT_FEATURE_RRM)) {
707554b4 9077 kzfree(connkeys);
bab5ab7d 9078 return -EINVAL;
707554b4 9079 }
bab5ab7d
AK		 9080 connect.flags |= ASSOC_REQ_USE_RRM;
9081 }
9082
34d50519 9083 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 9084 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
34d50519
LD		 9085 kzfree(connkeys);
9086 return -EOPNOTSUPP;
9087 }
9088
38de03d2
AS		 9089 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
9090 /* bss selection makes no sense if bssid is set */
9091 if (connect.bssid) {
9092 kzfree(connkeys);
9093 return -EINVAL;
9094 }
9095
9096 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
9097 wiphy, &connect.bss_select);
9098 if (err) {
9099 kzfree(connkeys);
9100 return err;
9101 }
9102 }
9103
a3caf744
VK		 9104 if (wiphy_ext_feature_isset(&rdev->wiphy,
9105 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
9106 info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] &&
9107 info->attrs[NL80211_ATTR_FILS_ERP_REALM] &&
9108 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] &&
9109 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9110 connect.fils_erp_username =
9111 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9112 connect.fils_erp_username_len =
9113 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9114 connect.fils_erp_realm =
9115 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9116 connect.fils_erp_realm_len =
9117 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9118 connect.fils_erp_next_seq_num =
9119 nla_get_u16(
9120 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM]);
9121 connect.fils_erp_rrk =
9122 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9123 connect.fils_erp_rrk_len =
9124 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9125 } else if (info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] ||
9126 info->attrs[NL80211_ATTR_FILS_ERP_REALM] ||
9127 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] ||
9128 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9129 kzfree(connkeys);
9130 return -EINVAL;
9131 }
9132
83739b03 9133 wdev_lock(dev->ieee80211_ptr);
bd2522b1 9134
4ce2bd9c
JM		 9135 err = cfg80211_connect(rdev, dev, &connect, connkeys,
9136 connect.prev_bssid);
fffd0934 9137 if (err)
b47f610b 9138 kzfree(connkeys);
bd2522b1
AZ		 9139
9140 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
9141 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
9142 if (connect.bssid)
9143 memcpy(dev->ieee80211_ptr->disconnect_bssid,
9144 connect.bssid, ETH_ALEN);
9145 else
9146 memset(dev->ieee80211_ptr->disconnect_bssid,
9147 0, ETH_ALEN);
9148 }
9149
9150 wdev_unlock(dev->ieee80211_ptr);
9151
b23aa676
SO		 9152 return err;
9153}
9154
088e8df8 9155static int nl80211_update_connect_params(struct sk_buff *skb,
9156 struct genl_info *info)
9157{
9158 struct cfg80211_connect_params connect = {};
9159 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9160 struct net_device *dev = info->user_ptr[1];
9161 struct wireless_dev *wdev = dev->ieee80211_ptr;
9162 u32 changed = 0;
9163 int ret;
9164
9165 if (!rdev->ops->update_connect_params)
9166 return -EOPNOTSUPP;
9167
9168 if (info->attrs[NL80211_ATTR_IE]) {
9169 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9170 return -EINVAL;
9171 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9172 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9173 changed |= UPDATE_ASSOC_IES;
9174 }
9175
9176 wdev_lock(dev->ieee80211_ptr);
9177 if (!wdev->current_bss)
9178 ret = -ENOLINK;
9179 else
9180 ret = rdev_update_connect_params(rdev, dev, &connect, changed);
9181 wdev_unlock(dev->ieee80211_ptr);
9182
9183 return ret;
9184}
9185
b23aa676
SO		 9186static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
9187{
4c476991
JB		 9188 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9189 struct net_device *dev = info->user_ptr[1];
b23aa676 9190 u16 reason;
83739b03 9191 int ret;
b23aa676
SO		 9192
9193 if (!info->attrs[NL80211_ATTR_REASON_CODE])
9194 reason = WLAN_REASON_DEAUTH_LEAVING;
9195 else
9196 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
9197
9198 if (reason == 0)
9199 return -EINVAL;
9200
074ac8df 9201 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9202 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9203 return -EOPNOTSUPP;
b23aa676 9204
83739b03
JB		 9205 wdev_lock(dev->ieee80211_ptr);
9206 ret = cfg80211_disconnect(rdev, dev, reason, true);
9207 wdev_unlock(dev->ieee80211_ptr);
9208 return ret;
b23aa676
SO		 9209}
9210
463d0183
JB		 9211static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
9212{
4c476991 9213 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 9214 struct net *net;
9215 int err;
463d0183 9216
4b681c82
VK		 9217 if (info->attrs[NL80211_ATTR_PID]) {
9218 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
9219
9220 net = get_net_ns_by_pid(pid);
9221 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
9222 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 9223
4b681c82
VK		 9224 net = get_net_ns_by_fd(fd);
9225 } else {
9226 return -EINVAL;
9227 }
463d0183 9228
4c476991
JB		 9229 if (IS_ERR(net))
9230 return PTR_ERR(net);
463d0183
JB		 9231
9232 err = 0;
9233
9234 /* check if anything to do */
4c476991
JB		 9235 if (!net_eq(wiphy_net(&rdev->wiphy), net))
9236 err = cfg80211_switch_netns(rdev, net);
463d0183 9237
463d0183 9238 put_net(net);
463d0183
JB		 9239 return err;
9240}
9241
67fbb16b
SO		 9242static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
9243{
4c476991 9244 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 9245 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
9246 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 9247 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 9248 struct cfg80211_pmksa pmksa;
9249
9250 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
9251
67fbb16b
SO		 9252 if (!info->attrs[NL80211_ATTR_PMKID])
9253 return -EINVAL;
9254
67fbb16b 9255 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
a3caf744
VK		 9256
9257 if (info->attrs[NL80211_ATTR_MAC]) {
9258 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
9259 } else if (info->attrs[NL80211_ATTR_SSID] &&
9260 info->attrs[NL80211_ATTR_FILS_CACHE_ID] &&
9261 (info->genlhdr->cmd == NL80211_CMD_DEL_PMKSA ||
9262 info->attrs[NL80211_ATTR_PMK])) {
9263 pmksa.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
9264 pmksa.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
9265 pmksa.cache_id =
9266 nla_data(info->attrs[NL80211_ATTR_FILS_CACHE_ID]);
9267 } else {
9268 return -EINVAL;
9269 }
9270 if (info->attrs[NL80211_ATTR_PMK]) {
9271 pmksa.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
9272 pmksa.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
9273 }
67fbb16b 9274
074ac8df 9275 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9276 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9277 return -EOPNOTSUPP;
67fbb16b
SO		 9278
9279 switch (info->genlhdr->cmd) {
9280 case NL80211_CMD_SET_PMKSA:
9281 rdev_ops = rdev->ops->set_pmksa;
9282 break;
9283 case NL80211_CMD_DEL_PMKSA:
9284 rdev_ops = rdev->ops->del_pmksa;
9285 break;
9286 default:
9287 WARN_ON(1);
9288 break;
9289 }
9290
4c476991
JB		 9291 if (!rdev_ops)
9292 return -EOPNOTSUPP;
67fbb16b 9293
4c476991 9294 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 9295}
9296
9297static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
9298{
4c476991
JB		 9299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9300 struct net_device *dev = info->user_ptr[1];
67fbb16b 9301
074ac8df 9302 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9303 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9304 return -EOPNOTSUPP;
67fbb16b 9305
4c476991
JB		 9306 if (!rdev->ops->flush_pmksa)
9307 return -EOPNOTSUPP;
67fbb16b 9308
e35e4d28 9309 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 9310}
9311
109086ce
AN		 9312static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
9313{
9314 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9315 struct net_device *dev = info->user_ptr[1];
9316 u8 action_code, dialog_token;
df942e7b 9317 u32 peer_capability = 0;
109086ce
AN		 9318 u16 status_code;
9319 u8 *peer;
31fa97c5 9320 bool initiator;
109086ce
AN		 9321
9322 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9323 !rdev->ops->tdls_mgmt)
9324 return -EOPNOTSUPP;
9325
9326 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
9327 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
9328 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
9329 !info->attrs[NL80211_ATTR_IE] ||
9330 !info->attrs[NL80211_ATTR_MAC])
9331 return -EINVAL;
9332
9333 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9334 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
9335 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
9336 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 9337 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 9338 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
9339 peer_capability =
9340 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 9341
e35e4d28 9342 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 9343 dialog_token, status_code, peer_capability,
31fa97c5 9344 initiator,
e35e4d28
HG		 9345 nla_data(info->attrs[NL80211_ATTR_IE]),
9346 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 9347}
9348
9349static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
9350{
9351 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9352 struct net_device *dev = info->user_ptr[1];
9353 enum nl80211_tdls_operation operation;
9354 u8 *peer;
9355
9356 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9357 !rdev->ops->tdls_oper)
9358 return -EOPNOTSUPP;
9359
9360 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
9361 !info->attrs[NL80211_ATTR_MAC])
9362 return -EINVAL;
9363
9364 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
9365 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9366
e35e4d28 9367 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 9368}
9369
9588bbd5
JM		 9370static int nl80211_remain_on_channel(struct sk_buff *skb,
9371 struct genl_info *info)
9372{
4c476991 9373 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9374 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 9375 struct cfg80211_chan_def chandef;
34373d12 9376 const struct cfg80211_chan_def *compat_chandef;
9588bbd5
JM		 9377 struct sk_buff *msg;
9378 void *hdr;
9379 u64 cookie;
683b6d3b 9380 u32 duration;
9588bbd5
JM		 9381 int err;
9382
9383 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
9384 !info->attrs[NL80211_ATTR_DURATION])
9385 return -EINVAL;
9386
9387 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9388
ebf348fc
JB		 9389 if (!rdev->ops->remain_on_channel ||
9390 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
9391 return -EOPNOTSUPP;
9392
9588bbd5 9393 /*
ebf348fc
JB		 9394 * We should be on that channel for at least a minimum amount of
9395 * time (10ms) but no longer than the driver supports.
9588bbd5 9396 */
ebf348fc 9397 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 9398 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 9399 return -EINVAL;
9400
683b6d3b
JB		 9401 err = nl80211_parse_chandef(rdev, info, &chandef);
9402 if (err)
9403 return err;
9588bbd5 9404
34373d12
VT		 9405 wdev_lock(wdev);
9406 if (!cfg80211_off_channel_oper_allowed(wdev) &&
9407 !cfg80211_chandef_identical(&wdev->chandef, &chandef)) {
9408 compat_chandef = cfg80211_chandef_compatible(&wdev->chandef,
9409 &chandef);
9410 if (compat_chandef != &chandef) {
9411 wdev_unlock(wdev);
9412 return -EBUSY;
9413 }
9414 }
9415 wdev_unlock(wdev);
9416
9588bbd5 9417 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9418 if (!msg)
9419 return -ENOMEM;
9588bbd5 9420
15e47304 9421 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 9422 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 9423 if (!hdr) {
9424 err = -ENOBUFS;
9588bbd5
JM		 9425 goto free_msg;
9426 }
9427
683b6d3b
JB		 9428 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
9429 duration, &cookie);
9588bbd5
JM		 9430
9431 if (err)
9432 goto free_msg;
9433
2dad624e
ND		 9434 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9435 NL80211_ATTR_PAD))
9360ffd1 9436 goto nla_put_failure;
9588bbd5
JM		 9437
9438 genlmsg_end(msg, hdr);
4c476991
JB		 9439
9440 return genlmsg_reply(msg, info);
9588bbd5
JM		 9441
9442 nla_put_failure:
9443 err = -ENOBUFS;
9444 free_msg:
9445 nlmsg_free(msg);
9588bbd5
JM		 9446 return err;
9447}
9448
9449static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
9450 struct genl_info *info)
9451{
4c476991 9452 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9453 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 9454 u64 cookie;
9588bbd5
JM		 9455
9456 if (!info->attrs[NL80211_ATTR_COOKIE])
9457 return -EINVAL;
9458
4c476991
JB		 9459 if (!rdev->ops->cancel_remain_on_channel)
9460 return -EOPNOTSUPP;
9588bbd5 9461
9588bbd5
JM		 9462 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9463
e35e4d28 9464 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 9465}
9466
13ae75b1
JM		 9467static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
9468 struct genl_info *info)
9469{
13ae75b1 9470 struct cfg80211_bitrate_mask mask;
a7c7fbff 9471 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9472 struct net_device *dev = info->user_ptr[1];
a7c7fbff 9473 int err;
13ae75b1 9474
4c476991
JB		 9475 if (!rdev->ops->set_bitrate_mask)
9476 return -EOPNOTSUPP;
13ae75b1 9477
a7c7fbff
PK		 9478 err = nl80211_parse_tx_bitrate_mask(info, &mask);
9479 if (err)
9480 return err;
13ae75b1 9481
e35e4d28 9482 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 9483}
9484
2e161f78 9485static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9486{
4c476991 9487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9488 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 9489 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 9490
9491 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
9492 return -EINVAL;
9493
2e161f78
JB		 9494 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
9495 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 9496
71bbc994
JB		 9497 switch (wdev->iftype) {
9498 case NL80211_IFTYPE_STATION:
9499 case NL80211_IFTYPE_ADHOC:
9500 case NL80211_IFTYPE_P2P_CLIENT:
9501 case NL80211_IFTYPE_AP:
9502 case NL80211_IFTYPE_AP_VLAN:
9503 case NL80211_IFTYPE_MESH_POINT:
9504 case NL80211_IFTYPE_P2P_GO:
98104fde 9505 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9506 break;
cb3b7d87 9507 case NL80211_IFTYPE_NAN:
71bbc994 9508 default:
4c476991 9509 return -EOPNOTSUPP;
71bbc994 9510 }
026331c4
JM		 9511
9512 /* not much point in registering if we can't reply */
4c476991
JB		 9513 if (!rdev->ops->mgmt_tx)
9514 return -EOPNOTSUPP;
026331c4 9515
15e47304 9516 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 9517 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
9518 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 9519}
9520
2e161f78 9521static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9522{
4c476991 9523 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9524 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 9525 struct cfg80211_chan_def chandef;
026331c4 9526 int err;
d64d373f 9527 void *hdr = NULL;
026331c4 9528 u64 cookie;
e247bd90 9529 struct sk_buff *msg = NULL;
b176e629
AO		 9530 struct cfg80211_mgmt_tx_params params = {
9531 .dont_wait_for_ack =
9532 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
9533 };
026331c4 9534
683b6d3b 9535 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 9536 return -EINVAL;
9537
4c476991
JB		 9538 if (!rdev->ops->mgmt_tx)
9539 return -EOPNOTSUPP;
026331c4 9540
71bbc994 9541 switch (wdev->iftype) {
ea141b75
AQ		 9542 case NL80211_IFTYPE_P2P_DEVICE:
9543 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
9544 return -EINVAL;
71bbc994
JB		 9545 case NL80211_IFTYPE_STATION:
9546 case NL80211_IFTYPE_ADHOC:
9547 case NL80211_IFTYPE_P2P_CLIENT:
9548 case NL80211_IFTYPE_AP:
9549 case NL80211_IFTYPE_AP_VLAN:
9550 case NL80211_IFTYPE_MESH_POINT:
9551 case NL80211_IFTYPE_P2P_GO:
9552 break;
cb3b7d87 9553 case NL80211_IFTYPE_NAN:
71bbc994 9554 default:
4c476991 9555 return -EOPNOTSUPP;
71bbc994 9556 }
026331c4 9557
f7ca38df 9558 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 9559 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 9560 return -EINVAL;
b176e629 9561 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 9562
9563 /*
9564 * We should wait on the channel for at least a minimum amount
9565 * of time (10ms) but no longer than the driver supports.
9566 */
b176e629
AO		 9567 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9568 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc 9569 return -EINVAL;
f7ca38df
JB		 9570 }
9571
b176e629 9572 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 9573
b176e629 9574 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 9575 return -EINVAL;
9576
b176e629 9577 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 9578
ea141b75
AQ		 9579 /* get the channel if any has been specified, otherwise pass NULL to
9580 * the driver. The latter will use the current one
9581 */
9582 chandef.chan = NULL;
9583 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9584 err = nl80211_parse_chandef(rdev, info, &chandef);
9585 if (err)
9586 return err;
9587 }
9588
b176e629 9589 if (!chandef.chan && params.offchan)
ea141b75 9590 return -EINVAL;
026331c4 9591
34373d12
VT		 9592 wdev_lock(wdev);
9593 if (params.offchan && !cfg80211_off_channel_oper_allowed(wdev)) {
9594 wdev_unlock(wdev);
9595 return -EBUSY;
9596 }
9597 wdev_unlock(wdev);
9598
34d22ce2
AO		 9599 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
9600 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
9601
9602 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
9603 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9604 int i;
9605
9606 if (len % sizeof(u16))
9607 return -EINVAL;
9608
9609 params.n_csa_offsets = len / sizeof(u16);
9610 params.csa_offsets =
9611 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9612
9613 /* check that all the offsets fit the frame */
9614 for (i = 0; i < params.n_csa_offsets; i++) {
9615 if (params.csa_offsets[i] >= params.len)
9616 return -EINVAL;
9617 }
9618 }
9619
b176e629 9620 if (!params.dont_wait_for_ack) {
e247bd90
JB		 9621 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9622 if (!msg)
9623 return -ENOMEM;
026331c4 9624
15e47304 9625 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 9626 NL80211_CMD_FRAME);
cb35fba3
DC		 9627 if (!hdr) {
9628 err = -ENOBUFS;
e247bd90
JB		 9629 goto free_msg;
9630 }
026331c4 9631 }
e247bd90 9632
b176e629
AO		 9633 params.chan = chandef.chan;
9634 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 9635 if (err)
9636 goto free_msg;
9637
e247bd90 9638 if (msg) {
2dad624e
ND		 9639 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9640 NL80211_ATTR_PAD))
9360ffd1 9641 goto nla_put_failure;
026331c4 9642
e247bd90
JB		 9643 genlmsg_end(msg, hdr);
9644 return genlmsg_reply(msg, info);
9645 }
9646
9647 return 0;
026331c4
JM		 9648
9649 nla_put_failure:
9650 err = -ENOBUFS;
9651 free_msg:
9652 nlmsg_free(msg);
026331c4
JM		 9653 return err;
9654}
9655
f7ca38df
JB		 9656static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
9657{
9658 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9659 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 9660 u64 cookie;
9661
9662 if (!info->attrs[NL80211_ATTR_COOKIE])
9663 return -EINVAL;
9664
9665 if (!rdev->ops->mgmt_tx_cancel_wait)
9666 return -EOPNOTSUPP;
9667
71bbc994
JB		 9668 switch (wdev->iftype) {
9669 case NL80211_IFTYPE_STATION:
9670 case NL80211_IFTYPE_ADHOC:
9671 case NL80211_IFTYPE_P2P_CLIENT:
9672 case NL80211_IFTYPE_AP:
9673 case NL80211_IFTYPE_AP_VLAN:
9674 case NL80211_IFTYPE_P2P_GO:
98104fde 9675 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9676 break;
cb3b7d87 9677 case NL80211_IFTYPE_NAN:
71bbc994 9678 default:
f7ca38df 9679 return -EOPNOTSUPP;
71bbc994 9680 }
f7ca38df
JB		 9681
9682 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9683
e35e4d28 9684 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 9685}
9686
ffb9eb3d
KV		 9687static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9688{
4c476991 9689 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 9690 struct wireless_dev *wdev;
4c476991 9691 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9692 u8 ps_state;
9693 bool state;
9694 int err;
9695
4c476991
JB		 9696 if (!info->attrs[NL80211_ATTR_PS_STATE])
9697 return -EINVAL;
ffb9eb3d
KV		 9698
9699 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9700
4c476991
JB		 9701 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9702 return -EINVAL;
ffb9eb3d
KV		 9703
9704 wdev = dev->ieee80211_ptr;
9705
4c476991
JB		 9706 if (!rdev->ops->set_power_mgmt)
9707 return -EOPNOTSUPP;
ffb9eb3d
KV		 9708
9709 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9710
9711 if (state == wdev->ps)
4c476991 9712 return 0;
ffb9eb3d 9713
e35e4d28 9714 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 9715 if (!err)
9716 wdev->ps = state;
ffb9eb3d
KV		 9717 return err;
9718}
9719
9720static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9721{
4c476991 9722 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 9723 enum nl80211_ps_state ps_state;
9724 struct wireless_dev *wdev;
4c476991 9725 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9726 struct sk_buff *msg;
9727 void *hdr;
9728 int err;
9729
ffb9eb3d
KV		 9730 wdev = dev->ieee80211_ptr;
9731
4c476991
JB		 9732 if (!rdev->ops->set_power_mgmt)
9733 return -EOPNOTSUPP;
ffb9eb3d
KV		 9734
9735 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9736 if (!msg)
9737 return -ENOMEM;
ffb9eb3d 9738
15e47304 9739 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 9740 NL80211_CMD_GET_POWER_SAVE);
9741 if (!hdr) {
4c476991 9742 err = -ENOBUFS;
ffb9eb3d
KV		 9743 goto free_msg;
9744 }
9745
9746 if (wdev->ps)
9747 ps_state = NL80211_PS_ENABLED;
9748 else
9749 ps_state = NL80211_PS_DISABLED;
9750
9360ffd1
DM		 9751 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9752 goto nla_put_failure;
ffb9eb3d
KV		 9753
9754 genlmsg_end(msg, hdr);
4c476991 9755 return genlmsg_reply(msg, info);
ffb9eb3d 9756
4c476991 9757 nla_put_failure:
ffb9eb3d 9758 err = -ENOBUFS;
4c476991 9759 free_msg:
ffb9eb3d 9760 nlmsg_free(msg);
ffb9eb3d
KV		 9761 return err;
9762}
9763
94e860f1
JB		 9764static const struct nla_policy
9765nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
4a4b8169 9766 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_BINARY },
d6dc1a38
JO		 9767 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9768 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 9769 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9770 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9771 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
bee427b8 9772 [NL80211_ATTR_CQM_RSSI_LEVEL] = { .type = NLA_S32 },
d6dc1a38
JO		 9773};
9774
84f10708 9775static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 9776 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 9777{
9778 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 9779 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9780 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 9781
d9d8b019 9782 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 9783 return -EINVAL;
9784
84f10708
TP		 9785 if (!rdev->ops->set_cqm_txe_config)
9786 return -EOPNOTSUPP;
9787
9788 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9789 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9790 return -EOPNOTSUPP;
9791
e35e4d28 9792 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 9793}
9794
4a4b8169
AZ		 9795static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev,
9796 struct net_device *dev)
9797{
9798 struct wireless_dev *wdev = dev->ieee80211_ptr;
9799 s32 last, low, high;
9800 u32 hyst;
9801 int i, n;
9802 int err;
9803
9804 /* RSSI reporting disabled? */
9805 if (!wdev->cqm_config)
9806 return rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0);
9807
9808 /*
9809 * Obtain current RSSI value if possible, if not and no RSSI threshold
9810 * event has been received yet, we should receive an event after a
9811 * connection is established and enough beacons received to calculate
9812 * the average.
9813 */
9814 if (!wdev->cqm_config->last_rssi_event_value && wdev->current_bss &&
9815 rdev->ops->get_station) {
5762d7d3 9816 struct station_info sinfo = {};
4a4b8169
AZ		 9817 u8 *mac_addr;
9818
9819 mac_addr = wdev->current_bss->pub.bssid;
9820
9821 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
9822 if (err)
9823 return err;
9824
9825 if (sinfo.filled & BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG))
9826 wdev->cqm_config->last_rssi_event_value =
9827 (s8) sinfo.rx_beacon_signal_avg;
9828 }
9829
9830 last = wdev->cqm_config->last_rssi_event_value;
9831 hyst = wdev->cqm_config->rssi_hyst;
9832 n = wdev->cqm_config->n_rssi_thresholds;
9833
9834 for (i = 0; i < n; i++)
9835 if (last < wdev->cqm_config->rssi_thresholds[i])
9836 break;
9837
9838 low = i > 0 ?
9839 (wdev->cqm_config->rssi_thresholds[i - 1] - hyst) : S32_MIN;
9840 high = i < n ?
9841 (wdev->cqm_config->rssi_thresholds[i] + hyst - 1) : S32_MAX;
9842
9843 return rdev_set_cqm_rssi_range_config(rdev, dev, low, high);
9844}
9845
d6dc1a38 9846static int nl80211_set_cqm_rssi(struct genl_info *info,
4a4b8169
AZ		 9847 const s32 *thresholds, int n_thresholds,
9848 u32 hysteresis)
d6dc1a38 9849{
4c476991 9850 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9851 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9852 struct wireless_dev *wdev = dev->ieee80211_ptr;
4a4b8169
AZ		 9853 int i, err;
9854 s32 prev = S32_MIN;
d6dc1a38 9855
4a4b8169
AZ		 9856 /* Check all values negative and sorted */
9857 for (i = 0; i < n_thresholds; i++) {
9858 if (thresholds[i] > 0 || thresholds[i] <= prev)
9859 return -EINVAL;
d6dc1a38 9860
4a4b8169
AZ		 9861 prev = thresholds[i];
9862 }
d6dc1a38 9863
074ac8df 9864 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9865 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9866 return -EOPNOTSUPP;
d6dc1a38 9867
4a4b8169
AZ		 9868 wdev_lock(wdev);
9869 cfg80211_cqm_config_free(wdev);
9870 wdev_unlock(wdev);
9871
9872 if (n_thresholds <= 1 && rdev->ops->set_cqm_rssi_config) {
9873 if (n_thresholds == 0 || thresholds[0] == 0) /* Disabling */
9874 return rdev_set_cqm_rssi_config(rdev, dev, 0, 0);
9875
9876 return rdev_set_cqm_rssi_config(rdev, dev,
9877 thresholds[0], hysteresis);
9878 }
9879
9880 if (!wiphy_ext_feature_isset(&rdev->wiphy,
9881 NL80211_EXT_FEATURE_CQM_RSSI_LIST))
9882 return -EOPNOTSUPP;
9883
9884 if (n_thresholds == 1 && thresholds[0] == 0) /* Disabling */
9885 n_thresholds = 0;
9886
9887 wdev_lock(wdev);
9888 if (n_thresholds) {
9889 struct cfg80211_cqm_config *cqm_config;
9890
9891 cqm_config = kzalloc(sizeof(struct cfg80211_cqm_config) +
9892 n_thresholds * sizeof(s32), GFP_KERNEL);
9893 if (!cqm_config) {
9894 err = -ENOMEM;
9895 goto unlock;
9896 }
9897
9898 cqm_config->rssi_hyst = hysteresis;
9899 cqm_config->n_rssi_thresholds = n_thresholds;
9900 memcpy(cqm_config->rssi_thresholds, thresholds,
9901 n_thresholds * sizeof(s32));
9902
9903 wdev->cqm_config = cqm_config;
9904 }
9905
9906 err = cfg80211_cqm_rssi_update(rdev, dev);
9907
9908unlock:
9909 wdev_unlock(wdev);
9910
9911 return err;
d6dc1a38
JO		 9912}
9913
9914static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9915{
9916 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9917 struct nlattr *cqm;
9918 int err;
9919
9920 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 9921 if (!cqm)
9922 return -EINVAL;
d6dc1a38
JO		 9923
9924 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
fe52145f 9925 nl80211_attr_cqm_policy, info->extack);
d6dc1a38 9926 if (err)
1da5fcc8 9927 return err;
d6dc1a38
JO		 9928
9929 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9930 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
4a4b8169
AZ		 9931 const s32 *thresholds =
9932 nla_data(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9933 int len = nla_len(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
1da5fcc8 9934 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 9935
4a4b8169
AZ		 9936 if (len % 4)
9937 return -EINVAL;
9938
9939 return nl80211_set_cqm_rssi(info, thresholds, len / 4,
9940 hysteresis);
1da5fcc8
JB		 9941 }
9942
9943 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9944 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9945 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9946 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9947 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9948 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9949
9950 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9951 }
9952
9953 return -EINVAL;
d6dc1a38
JO		 9954}
9955
6e0bd6c3
RL		 9956static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9957{
9958 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9959 struct net_device *dev = info->user_ptr[1];
9960 struct ocb_setup setup = {};
9961 int err;
9962
9963 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9964 if (err)
9965 return err;
9966
9967 return cfg80211_join_ocb(rdev, dev, &setup);
9968}
9969
9970static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9971{
9972 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9973 struct net_device *dev = info->user_ptr[1];
9974
9975 return cfg80211_leave_ocb(rdev, dev);
9976}
9977
29cbe68c
JB		 9978static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9979{
9980 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9981 struct net_device *dev = info->user_ptr[1];
9982 struct mesh_config cfg;
c80d545d 9983 struct mesh_setup setup;
29cbe68c
JB		 9984 int err;
9985
9986 /* start with default */
9987 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9988 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9989
24bdd9f4 9990 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9991 /* and parse parameters if given */
24bdd9f4 9992 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9993 if (err)
9994 return err;
9995 }
9996
9997 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9998 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9999 return -EINVAL;
10000
c80d545d
JC		 10001 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
10002 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
10003
4bb62344
CYY		 10004 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
10005 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
10006 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
10007 return -EINVAL;
10008
9bdbf04d
MP		 10009 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
10010 setup.beacon_interval =
10011 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9 10012
0c317a02
PK		 10013 err = cfg80211_validate_beacon_int(rdev,
10014 NL80211_IFTYPE_MESH_POINT,
10015 setup.beacon_interval);
12d20fc9
PK		 10016 if (err)
10017 return err;
9bdbf04d
MP		 10018 }
10019
10020 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
10021 setup.dtim_period =
10022 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
10023 if (setup.dtim_period < 1 || setup.dtim_period > 100)
10024 return -EINVAL;
10025 }
10026
c80d545d
JC		 10027 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
10028 /* parse additional setup parameters if given */
10029 err = nl80211_parse_mesh_setup(info, &setup);
10030 if (err)
10031 return err;
10032 }
10033
d37bb18a
TP		 10034 if (setup.user_mpm)
10035 cfg.auto_open_plinks = false;
10036
cc1d2806 10037 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 10038 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
10039 if (err)
10040 return err;
cc1d2806
JB		 10041 } else {
10042 /* cfg80211_join_mesh() will sort it out */
683b6d3b 10043 setup.chandef.chan = NULL;
cc1d2806
JB		 10044 }
10045
ffb3cf30
AN		 10046 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
10047 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
10048 int n_rates =
10049 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
10050 struct ieee80211_supported_band *sband;
10051
10052 if (!setup.chandef.chan)
10053 return -EINVAL;
10054
10055 sband = rdev->wiphy.bands[setup.chandef.chan->band];
10056
10057 err = ieee80211_get_ratemask(sband, rates, n_rates,
10058 &setup.basic_rates);
10059 if (err)
10060 return err;
10061 }
10062
8564e382
JB		 10063 if (info->attrs[NL80211_ATTR_TX_RATES]) {
10064 err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
10065 if (err)
10066 return err;
10067
265698d7
JB		 10068 if (!setup.chandef.chan)
10069 return -EINVAL;
10070
8564e382
JB		 10071 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
10072 &setup.beacon_rate);
10073 if (err)
10074 return err;
10075 }
10076
d37d49c2
BB		 10077 setup.userspace_handles_dfs =
10078 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
10079
c80d545d 10080 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 10081}
10082
10083static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
10084{
10085 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10086 struct net_device *dev = info->user_ptr[1];
10087
10088 return cfg80211_leave_mesh(rdev, dev);
10089}
10090
dfb89c56 10091#ifdef CONFIG_PM
bb92d199
AK		 10092static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
10093 struct cfg80211_registered_device *rdev)
10094{
6abb9cb9 10095 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 10096 struct nlattr *nl_pats, *nl_pat;
10097 int i, pat_len;
10098
6abb9cb9 10099 if (!wowlan->n_patterns)
bb92d199
AK		 10100 return 0;
10101
10102 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
10103 if (!nl_pats)
10104 return -ENOBUFS;
10105
6abb9cb9 10106 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 10107 nl_pat = nla_nest_start(msg, i + 1);
10108 if (!nl_pat)
10109 return -ENOBUFS;
6abb9cb9 10110 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 10111 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 10112 wowlan->patterns[i].mask) ||
50ac6607
AK		 10113 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10114 wowlan->patterns[i].pattern) ||
10115 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 10116 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 10117 return -ENOBUFS;
10118 nla_nest_end(msg, nl_pat);
10119 }
10120 nla_nest_end(msg, nl_pats);
10121
10122 return 0;
10123}
10124
2a0e047e
JB		 10125static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
10126 struct cfg80211_wowlan_tcp *tcp)
10127{
10128 struct nlattr *nl_tcp;
10129
10130 if (!tcp)
10131 return 0;
10132
10133 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
10134 if (!nl_tcp)
10135 return -ENOBUFS;
10136
930345ea
JB		 10137 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
10138 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 10139 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
10140 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
10141 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
10142 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
10143 tcp->payload_len, tcp->payload) ||
10144 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
10145 tcp->data_interval) ||
10146 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
10147 tcp->wake_len, tcp->wake_data) ||
10148 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
10149 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
10150 return -ENOBUFS;
10151
10152 if (tcp->payload_seq.len &&
10153 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
10154 sizeof(tcp->payload_seq), &tcp->payload_seq))
10155 return -ENOBUFS;
10156
10157 if (tcp->payload_tok.len &&
10158 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
10159 sizeof(tcp->payload_tok) + tcp->tokens_size,
10160 &tcp->payload_tok))
10161 return -ENOBUFS;
10162
e248ad30
JB		 10163 nla_nest_end(msg, nl_tcp);
10164
2a0e047e
JB		 10165 return 0;
10166}
10167
75453ccb
LC		 10168static int nl80211_send_wowlan_nd(struct sk_buff *msg,
10169 struct cfg80211_sched_scan_request *req)
10170{
3b06d277 10171 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 10172 int i;
10173
10174 if (!req)
10175 return 0;
10176
10177 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
10178 if (!nd)
10179 return -ENOBUFS;
10180
3b06d277
AS		 10181 if (req->n_scan_plans == 1 &&
10182 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
10183 req->scan_plans[0].interval * 1000))
75453ccb
LC		 10184 return -ENOBUFS;
10185
21fea567
LC		 10186 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
10187 return -ENOBUFS;
10188
bf95ecdb 10189 if (req->relative_rssi_set) {
10190 struct nl80211_bss_select_rssi_adjust rssi_adjust;
10191
10192 if (nla_put_s8(msg, NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI,
10193 req->relative_rssi))
10194 return -ENOBUFS;
10195
10196 rssi_adjust.band = req->rssi_adjust.band;
10197 rssi_adjust.delta = req->rssi_adjust.delta;
10198 if (nla_put(msg, NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST,
10199 sizeof(rssi_adjust), &rssi_adjust))
10200 return -ENOBUFS;
10201 }
10202
75453ccb
LC		 10203 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10204 if (!freqs)
10205 return -ENOBUFS;
10206
53b18980
JB		 10207 for (i = 0; i < req->n_channels; i++) {
10208 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10209 return -ENOBUFS;
10210 }
75453ccb
LC		 10211
10212 nla_nest_end(msg, freqs);
10213
10214 if (req->n_match_sets) {
10215 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
76e1fb4b
JB		 10216 if (!matches)
10217 return -ENOBUFS;
10218
75453ccb
LC		 10219 for (i = 0; i < req->n_match_sets; i++) {
10220 match = nla_nest_start(msg, i);
76e1fb4b
JB		 10221 if (!match)
10222 return -ENOBUFS;
10223
53b18980
JB		 10224 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
10225 req->match_sets[i].ssid.ssid_len,
10226 req->match_sets[i].ssid.ssid))
10227 return -ENOBUFS;
75453ccb
LC		 10228 nla_nest_end(msg, match);
10229 }
10230 nla_nest_end(msg, matches);
10231 }
10232
3b06d277
AS		 10233 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
10234 if (!scan_plans)
10235 return -ENOBUFS;
10236
10237 for (i = 0; i < req->n_scan_plans; i++) {
10238 scan_plan = nla_nest_start(msg, i + 1);
76e1fb4b
JB		 10239 if (!scan_plan)
10240 return -ENOBUFS;
10241
3b06d277
AS		 10242 if (!scan_plan ||
10243 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
10244 req->scan_plans[i].interval) ||
10245 (req->scan_plans[i].iterations &&
10246 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
10247 req->scan_plans[i].iterations)))
10248 return -ENOBUFS;
10249 nla_nest_end(msg, scan_plan);
10250 }
10251 nla_nest_end(msg, scan_plans);
10252
75453ccb
LC		 10253 nla_nest_end(msg, nd);
10254
10255 return 0;
10256}
10257
ff1b6e69
JB		 10258static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
10259{
10260 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10261 struct sk_buff *msg;
10262 void *hdr;
2a0e047e 10263 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 10264
964dc9e2 10265 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 10266 return -EOPNOTSUPP;
10267
6abb9cb9 10268 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 10269 /* adjust size to have room for all the data */
6abb9cb9
JB		 10270 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
10271 rdev->wiphy.wowlan_config->tcp->payload_len +
10272 rdev->wiphy.wowlan_config->tcp->wake_len +
10273 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 10274 }
10275
10276 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 10277 if (!msg)
10278 return -ENOMEM;
10279
15e47304 10280 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 10281 NL80211_CMD_GET_WOWLAN);
10282 if (!hdr)
10283 goto nla_put_failure;
10284
6abb9cb9 10285 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 10286 struct nlattr *nl_wowlan;
10287
10288 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10289 if (!nl_wowlan)
10290 goto nla_put_failure;
10291
6abb9cb9 10292 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 10293 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 10294 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 10295 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 10296 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 10297 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 10298 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 10299 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 10300 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 10301 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 10302 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 10303 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 10304 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 10305 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
10306 goto nla_put_failure;
2a0e047e 10307
bb92d199
AK		 10308 if (nl80211_send_wowlan_patterns(msg, rdev))
10309 goto nla_put_failure;
2a0e047e 10310
6abb9cb9
JB		 10311 if (nl80211_send_wowlan_tcp(msg,
10312 rdev->wiphy.wowlan_config->tcp))
2a0e047e 10313 goto nla_put_failure;
75453ccb
LC		 10314
10315 if (nl80211_send_wowlan_nd(
10316 msg,
10317 rdev->wiphy.wowlan_config->nd_config))
10318 goto nla_put_failure;
2a0e047e 10319
ff1b6e69
JB		 10320 nla_nest_end(msg, nl_wowlan);
10321 }
10322
10323 genlmsg_end(msg, hdr);
10324 return genlmsg_reply(msg, info);
10325
10326nla_put_failure:
10327 nlmsg_free(msg);
10328 return -ENOBUFS;
10329}
10330
2a0e047e
JB		 10331static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
10332 struct nlattr *attr,
10333 struct cfg80211_wowlan *trig)
10334{
10335 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
10336 struct cfg80211_wowlan_tcp *cfg;
10337 struct nl80211_wowlan_tcp_data_token *tok = NULL;
10338 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
10339 u32 size;
10340 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
10341 int err, port;
10342
964dc9e2 10343 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 10344 return -EINVAL;
10345
bfe2c7b1 10346 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TCP, attr,
fceb6435 10347 nl80211_wowlan_tcp_policy, NULL);
2a0e047e
JB		 10348 if (err)
10349 return err;
10350
10351 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
10352 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
10353 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
10354 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
10355 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
10356 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
10357 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
10358 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
10359 return -EINVAL;
10360
10361 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 10362 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 10363 return -EINVAL;
10364
10365 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 10366 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 10367 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 10368 return -EINVAL;
10369
10370 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 10371 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 10372 return -EINVAL;
10373
10374 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
10375 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
10376 return -EINVAL;
10377
10378 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
10379 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10380
10381 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10382 tokens_size = tokln - sizeof(*tok);
10383
10384 if (!tok->len || tokens_size % tok->len)
10385 return -EINVAL;
964dc9e2 10386 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 10387 return -EINVAL;
964dc9e2 10388 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 10389 return -EINVAL;
964dc9e2 10390 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 10391 return -EINVAL;
964dc9e2 10392 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 10393 return -EINVAL;
10394 if (tok->offset + tok->len > data_size)
10395 return -EINVAL;
10396 }
10397
10398 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
10399 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 10400 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 10401 return -EINVAL;
10402 if (seq->len == 0 || seq->len > 4)
10403 return -EINVAL;
10404 if (seq->len + seq->offset > data_size)
10405 return -EINVAL;
10406 }
10407
10408 size = sizeof(*cfg);
10409 size += data_size;
10410 size += wake_size + wake_mask_size;
10411 size += tokens_size;
10412
10413 cfg = kzalloc(size, GFP_KERNEL);
10414 if (!cfg)
10415 return -ENOMEM;
67b61f6c
JB		 10416 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
10417 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 10418 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
10419 ETH_ALEN);
10420 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
10421 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
10422 else
10423 port = 0;
10424#ifdef CONFIG_INET
10425 /* allocate a socket and port for it and use it */
10426 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
10427 IPPROTO_TCP, &cfg->sock, 1);
10428 if (err) {
10429 kfree(cfg);
10430 return err;
10431 }
10432 if (inet_csk_get_port(cfg->sock->sk, port)) {
10433 sock_release(cfg->sock);
10434 kfree(cfg);
10435 return -EADDRINUSE;
10436 }
10437 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
10438#else
10439 if (!port) {
10440 kfree(cfg);
10441 return -EINVAL;
10442 }
10443 cfg->src_port = port;
10444#endif
10445
10446 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
10447 cfg->payload_len = data_size;
10448 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
10449 memcpy((void *)cfg->payload,
10450 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
10451 data_size);
10452 if (seq)
10453 cfg->payload_seq = *seq;
10454 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
10455 cfg->wake_len = wake_size;
10456 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
10457 memcpy((void *)cfg->wake_data,
10458 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
10459 wake_size);
10460 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
10461 data_size + wake_size;
10462 memcpy((void *)cfg->wake_mask,
10463 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
10464 wake_mask_size);
10465 if (tok) {
10466 cfg->tokens_size = tokens_size;
10467 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
10468 }
10469
10470 trig->tcp = cfg;
10471
10472 return 0;
10473}
10474
8cd4d456
LC		 10475static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
10476 const struct wiphy_wowlan_support *wowlan,
10477 struct nlattr *attr,
10478 struct cfg80211_wowlan *trig)
10479{
10480 struct nlattr **tb;
10481 int err;
10482
10483 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
10484 if (!tb)
10485 return -ENOMEM;
10486
10487 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
10488 err = -EOPNOTSUPP;
10489 goto out;
10490 }
10491
fceb6435
JB		 10492 err = nla_parse_nested(tb, NL80211_ATTR_MAX, attr, nl80211_policy,
10493 NULL);
8cd4d456
LC		 10494 if (err)
10495 goto out;
10496
aad1e812
AVS		 10497 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb,
10498 wowlan->max_nd_match_sets);
8cd4d456
LC		 10499 err = PTR_ERR_OR_ZERO(trig->nd_config);
10500 if (err)
10501 trig->nd_config = NULL;
10502
10503out:
10504 kfree(tb);
10505 return err;
10506}
10507
ff1b6e69
JB		 10508static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
10509{
10510 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10511 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 10512 struct cfg80211_wowlan new_triggers = {};
ae33bd81 10513 struct cfg80211_wowlan *ntrig;
964dc9e2 10514 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 10515 int err, i;
6abb9cb9 10516 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 10517 bool regular = false;
ff1b6e69 10518
964dc9e2 10519 if (!wowlan)
ff1b6e69
JB		 10520 return -EOPNOTSUPP;
10521
ae33bd81
JB		 10522 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
10523 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 10524 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 10525 goto set_wakeup;
10526 }
ff1b6e69 10527
bfe2c7b1
JB		 10528 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TRIG,
10529 info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS],
fe52145f 10530 nl80211_wowlan_policy, info->extack);
ff1b6e69
JB		 10531 if (err)
10532 return err;
10533
10534 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
10535 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
10536 return -EINVAL;
10537 new_triggers.any = true;
10538 }
10539
10540 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
10541 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
10542 return -EINVAL;
10543 new_triggers.disconnect = true;
98fc4386 10544 regular = true;
ff1b6e69
JB		 10545 }
10546
10547 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
10548 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
10549 return -EINVAL;
10550 new_triggers.magic_pkt = true;
98fc4386 10551 regular = true;
ff1b6e69
JB		 10552 }
10553
77dbbb13
JB		 10554 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
10555 return -EINVAL;
10556
10557 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
10558 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
10559 return -EINVAL;
10560 new_triggers.gtk_rekey_failure = true;
98fc4386 10561 regular = true;
77dbbb13
JB		 10562 }
10563
10564 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
10565 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
10566 return -EINVAL;
10567 new_triggers.eap_identity_req = true;
98fc4386 10568 regular = true;
77dbbb13
JB		 10569 }
10570
10571 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
10572 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
10573 return -EINVAL;
10574 new_triggers.four_way_handshake = true;
98fc4386 10575 regular = true;
77dbbb13
JB		 10576 }
10577
10578 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
10579 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
10580 return -EINVAL;
10581 new_triggers.rfkill_release = true;
98fc4386 10582 regular = true;
77dbbb13
JB		 10583 }
10584
ff1b6e69
JB		 10585 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
10586 struct nlattr *pat;
10587 int n_patterns = 0;
bb92d199 10588 int rem, pat_len, mask_len, pkt_offset;
50ac6607 10589 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 10590
98fc4386
JB		 10591 regular = true;
10592
ff1b6e69
JB		 10593 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10594 rem)
10595 n_patterns++;
10596 if (n_patterns > wowlan->n_patterns)
10597 return -EINVAL;
10598
10599 new_triggers.patterns = kcalloc(n_patterns,
10600 sizeof(new_triggers.patterns[0]),
10601 GFP_KERNEL);
10602 if (!new_triggers.patterns)
10603 return -ENOMEM;
10604
10605 new_triggers.n_patterns = n_patterns;
10606 i = 0;
10607
10608 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10609 rem) {
922bd80f
JB		 10610 u8 *mask_pat;
10611
bfe2c7b1 10612 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
ad670233
PX		 10613 nl80211_packet_pattern_policy,
10614 info->extack);
ff1b6e69 10615 err = -EINVAL;
50ac6607
AK		 10616 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10617 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 10618 goto error;
50ac6607 10619 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 10620 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 10621 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 10622 goto error;
10623 if (pat_len > wowlan->pattern_max_len ||
10624 pat_len < wowlan->pattern_min_len)
10625 goto error;
10626
50ac6607 10627 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 10628 pkt_offset = 0;
10629 else
10630 pkt_offset = nla_get_u32(
50ac6607 10631 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 10632 if (pkt_offset > wowlan->max_pkt_offset)
10633 goto error;
10634 new_triggers.patterns[i].pkt_offset = pkt_offset;
10635
922bd80f
JB		 10636 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10637 if (!mask_pat) {
ff1b6e69
JB		 10638 err = -ENOMEM;
10639 goto error;
10640 }
922bd80f
JB		 10641 new_triggers.patterns[i].mask = mask_pat;
10642 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 10643 mask_len);
922bd80f
JB		 10644 mask_pat += mask_len;
10645 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 10646 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 10647 memcpy(mask_pat,
50ac6607 10648 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 10649 pat_len);
10650 i++;
10651 }
10652 }
10653
2a0e047e 10654 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 10655 regular = true;
2a0e047e
JB		 10656 err = nl80211_parse_wowlan_tcp(
10657 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
10658 &new_triggers);
10659 if (err)
10660 goto error;
10661 }
10662
8cd4d456 10663 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 10664 regular = true;
8cd4d456
LC		 10665 err = nl80211_parse_wowlan_nd(
10666 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
10667 &new_triggers);
10668 if (err)
10669 goto error;
10670 }
10671
98fc4386
JB		 10672 /* The 'any' trigger means the device continues operating more or less
10673 * as in its normal operation mode and wakes up the host on most of the
10674 * normal interrupts (like packet RX, ...)
10675 * It therefore makes little sense to combine with the more constrained
10676 * wakeup trigger modes.
10677 */
10678 if (new_triggers.any && regular) {
10679 err = -EINVAL;
10680 goto error;
10681 }
10682
ae33bd81
JB		 10683 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
10684 if (!ntrig) {
10685 err = -ENOMEM;
10686 goto error;
ff1b6e69 10687 }
ae33bd81 10688 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 10689 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 10690
ae33bd81 10691 set_wakeup:
6abb9cb9
JB		 10692 if (rdev->ops->set_wakeup &&
10693 prev_enabled != !!rdev->wiphy.wowlan_config)
10694 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 10695
ff1b6e69
JB		 10696 return 0;
10697 error:
10698 for (i = 0; i < new_triggers.n_patterns; i++)
10699 kfree(new_triggers.patterns[i].mask);
10700 kfree(new_triggers.patterns);
2a0e047e
JB		 10701 if (new_triggers.tcp && new_triggers.tcp->sock)
10702 sock_release(new_triggers.tcp->sock);
10703 kfree(new_triggers.tcp);
e5dbe070 10704 kfree(new_triggers.nd_config);
ff1b6e69
JB		 10705 return err;
10706}
dfb89c56 10707#endif
ff1b6e69 10708
be29b99a
AK		 10709static int nl80211_send_coalesce_rules(struct sk_buff *msg,
10710 struct cfg80211_registered_device *rdev)
10711{
10712 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
10713 int i, j, pat_len;
10714 struct cfg80211_coalesce_rules *rule;
10715
10716 if (!rdev->coalesce->n_rules)
10717 return 0;
10718
10719 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
10720 if (!nl_rules)
10721 return -ENOBUFS;
10722
10723 for (i = 0; i < rdev->coalesce->n_rules; i++) {
10724 nl_rule = nla_nest_start(msg, i + 1);
10725 if (!nl_rule)
10726 return -ENOBUFS;
10727
10728 rule = &rdev->coalesce->rules[i];
10729 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
10730 rule->delay))
10731 return -ENOBUFS;
10732
10733 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
10734 rule->condition))
10735 return -ENOBUFS;
10736
10737 nl_pats = nla_nest_start(msg,
10738 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
10739 if (!nl_pats)
10740 return -ENOBUFS;
10741
10742 for (j = 0; j < rule->n_patterns; j++) {
10743 nl_pat = nla_nest_start(msg, j + 1);
10744 if (!nl_pat)
10745 return -ENOBUFS;
10746 pat_len = rule->patterns[j].pattern_len;
10747 if (nla_put(msg, NL80211_PKTPAT_MASK,
10748 DIV_ROUND_UP(pat_len, 8),
10749 rule->patterns[j].mask) ||
10750 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10751 rule->patterns[j].pattern) ||
10752 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10753 rule->patterns[j].pkt_offset))
10754 return -ENOBUFS;
10755 nla_nest_end(msg, nl_pat);
10756 }
10757 nla_nest_end(msg, nl_pats);
10758 nla_nest_end(msg, nl_rule);
10759 }
10760 nla_nest_end(msg, nl_rules);
10761
10762 return 0;
10763}
10764
10765static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
10766{
10767 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10768 struct sk_buff *msg;
10769 void *hdr;
10770
10771 if (!rdev->wiphy.coalesce)
10772 return -EOPNOTSUPP;
10773
10774 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10775 if (!msg)
10776 return -ENOMEM;
10777
10778 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10779 NL80211_CMD_GET_COALESCE);
10780 if (!hdr)
10781 goto nla_put_failure;
10782
10783 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
10784 goto nla_put_failure;
10785
10786 genlmsg_end(msg, hdr);
10787 return genlmsg_reply(msg, info);
10788
10789nla_put_failure:
10790 nlmsg_free(msg);
10791 return -ENOBUFS;
10792}
10793
10794void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
10795{
10796 struct cfg80211_coalesce *coalesce = rdev->coalesce;
10797 int i, j;
10798 struct cfg80211_coalesce_rules *rule;
10799
10800 if (!coalesce)
10801 return;
10802
10803 for (i = 0; i < coalesce->n_rules; i++) {
10804 rule = &coalesce->rules[i];
10805 for (j = 0; j < rule->n_patterns; j++)
10806 kfree(rule->patterns[j].mask);
10807 kfree(rule->patterns);
10808 }
10809 kfree(coalesce->rules);
10810 kfree(coalesce);
10811 rdev->coalesce = NULL;
10812}
10813
10814static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10815 struct nlattr *rule,
10816 struct cfg80211_coalesce_rules *new_rule)
10817{
10818 int err, i;
10819 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10820 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10821 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10822 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10823
bfe2c7b1 10824 err = nla_parse_nested(tb, NL80211_ATTR_COALESCE_RULE_MAX, rule,
fceb6435 10825 nl80211_coalesce_policy, NULL);
be29b99a
AK		 10826 if (err)
10827 return err;
10828
10829 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10830 new_rule->delay =
10831 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10832 if (new_rule->delay > coalesce->max_delay)
10833 return -EINVAL;
10834
10835 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10836 new_rule->condition =
10837 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10838 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10839 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10840 return -EINVAL;
10841
10842 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10843 return -EINVAL;
10844
10845 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10846 rem)
10847 n_patterns++;
10848 if (n_patterns > coalesce->n_patterns)
10849 return -EINVAL;
10850
10851 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10852 GFP_KERNEL);
10853 if (!new_rule->patterns)
10854 return -ENOMEM;
10855
10856 new_rule->n_patterns = n_patterns;
10857 i = 0;
10858
10859 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10860 rem) {
922bd80f
JB		 10861 u8 *mask_pat;
10862
ad670233
PX		 10863 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
10864 nl80211_packet_pattern_policy, NULL);
be29b99a
AK		 10865 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10866 !pat_tb[NL80211_PKTPAT_PATTERN])
10867 return -EINVAL;
10868 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10869 mask_len = DIV_ROUND_UP(pat_len, 8);
10870 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10871 return -EINVAL;
10872 if (pat_len > coalesce->pattern_max_len ||
10873 pat_len < coalesce->pattern_min_len)
10874 return -EINVAL;
10875
10876 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10877 pkt_offset = 0;
10878 else
10879 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10880 if (pkt_offset > coalesce->max_pkt_offset)
10881 return -EINVAL;
10882 new_rule->patterns[i].pkt_offset = pkt_offset;
10883
922bd80f
JB		 10884 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10885 if (!mask_pat)
be29b99a 10886 return -ENOMEM;
922bd80f
JB		 10887
10888 new_rule->patterns[i].mask = mask_pat;
10889 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10890 mask_len);
10891
10892 mask_pat += mask_len;
10893 new_rule->patterns[i].pattern = mask_pat;
be29b99a 10894 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 10895 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10896 pat_len);
be29b99a
AK		 10897 i++;
10898 }
10899
10900 return 0;
10901}
10902
10903static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10904{
10905 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10906 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10907 struct cfg80211_coalesce new_coalesce = {};
10908 struct cfg80211_coalesce *n_coalesce;
10909 int err, rem_rule, n_rules = 0, i, j;
10910 struct nlattr *rule;
10911 struct cfg80211_coalesce_rules *tmp_rule;
10912
10913 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10914 return -EOPNOTSUPP;
10915
10916 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10917 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 10918 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 10919 return 0;
10920 }
10921
10922 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10923 rem_rule)
10924 n_rules++;
10925 if (n_rules > coalesce->n_rules)
10926 return -EINVAL;
10927
10928 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10929 GFP_KERNEL);
10930 if (!new_coalesce.rules)
10931 return -ENOMEM;
10932
10933 new_coalesce.n_rules = n_rules;
10934 i = 0;
10935
10936 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10937 rem_rule) {
10938 err = nl80211_parse_coalesce_rule(rdev, rule,
10939 &new_coalesce.rules[i]);
10940 if (err)
10941 goto error;
10942
10943 i++;
10944 }
10945
a1056b1b 10946 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 10947 if (err)
10948 goto error;
10949
10950 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10951 if (!n_coalesce) {
10952 err = -ENOMEM;
10953 goto error;
10954 }
10955 cfg80211_rdev_free_coalesce(rdev);
10956 rdev->coalesce = n_coalesce;
10957
10958 return 0;
10959error:
10960 for (i = 0; i < new_coalesce.n_rules; i++) {
10961 tmp_rule = &new_coalesce.rules[i];
10962 for (j = 0; j < tmp_rule->n_patterns; j++)
10963 kfree(tmp_rule->patterns[j].mask);
10964 kfree(tmp_rule->patterns);
10965 }
10966 kfree(new_coalesce.rules);
10967
10968 return err;
10969}
10970
e5497d76
JB		 10971static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10972{
10973 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10974 struct net_device *dev = info->user_ptr[1];
10975 struct wireless_dev *wdev = dev->ieee80211_ptr;
10976 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10977 struct cfg80211_gtk_rekey_data rekey_data;
10978 int err;
10979
10980 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10981 return -EINVAL;
10982
bfe2c7b1
JB		 10983 err = nla_parse_nested(tb, MAX_NL80211_REKEY_DATA,
10984 info->attrs[NL80211_ATTR_REKEY_DATA],
fe52145f 10985 nl80211_rekey_policy, info->extack);
e5497d76
JB		 10986 if (err)
10987 return err;
10988
e785fa0a
VD		 10989 if (!tb[NL80211_REKEY_DATA_REPLAY_CTR] || !tb[NL80211_REKEY_DATA_KEK] ||
10990 !tb[NL80211_REKEY_DATA_KCK])
10991 return -EINVAL;
e5497d76
JB		 10992 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10993 return -ERANGE;
10994 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10995 return -ERANGE;
10996 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10997 return -ERANGE;
10998
78f686ca
JB		 10999 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
11000 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
11001 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 11002
11003 wdev_lock(wdev);
11004 if (!wdev->current_bss) {
11005 err = -ENOTCONN;
11006 goto out;
11007 }
11008
11009 if (!rdev->ops->set_rekey_data) {
11010 err = -EOPNOTSUPP;
11011 goto out;
11012 }
11013
e35e4d28 11014 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 11015 out:
11016 wdev_unlock(wdev);
11017 return err;
11018}
11019
28946da7
JB		 11020static int nl80211_register_unexpected_frame(struct sk_buff *skb,
11021 struct genl_info *info)
11022{
11023 struct net_device *dev = info->user_ptr[1];
11024 struct wireless_dev *wdev = dev->ieee80211_ptr;
11025
11026 if (wdev->iftype != NL80211_IFTYPE_AP &&
11027 wdev->iftype != NL80211_IFTYPE_P2P_GO)
11028 return -EINVAL;
11029
15e47304 11030 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 11031 return -EBUSY;
11032
15e47304 11033 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 11034 return 0;
11035}
11036
7f6cf311
JB		 11037static int nl80211_probe_client(struct sk_buff *skb,
11038 struct genl_info *info)
11039{
11040 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11041 struct net_device *dev = info->user_ptr[1];
11042 struct wireless_dev *wdev = dev->ieee80211_ptr;
11043 struct sk_buff *msg;
11044 void *hdr;
11045 const u8 *addr;
11046 u64 cookie;
11047 int err;
11048
11049 if (wdev->iftype != NL80211_IFTYPE_AP &&
11050 wdev->iftype != NL80211_IFTYPE_P2P_GO)
11051 return -EOPNOTSUPP;
11052
11053 if (!info->attrs[NL80211_ATTR_MAC])
11054 return -EINVAL;
11055
11056 if (!rdev->ops->probe_client)
11057 return -EOPNOTSUPP;
11058
11059 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11060 if (!msg)
11061 return -ENOMEM;
11062
15e47304 11063 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 11064 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 11065 if (!hdr) {
11066 err = -ENOBUFS;
7f6cf311
JB		 11067 goto free_msg;
11068 }
11069
11070 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11071
e35e4d28 11072 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 11073 if (err)
11074 goto free_msg;
11075
2dad624e
ND		 11076 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11077 NL80211_ATTR_PAD))
9360ffd1 11078 goto nla_put_failure;
7f6cf311
JB		 11079
11080 genlmsg_end(msg, hdr);
11081
11082 return genlmsg_reply(msg, info);
11083
11084 nla_put_failure:
11085 err = -ENOBUFS;
11086 free_msg:
11087 nlmsg_free(msg);
11088 return err;
11089}
11090
5e760230
JB		 11091static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
11092{
11093 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 11094 struct cfg80211_beacon_registration *reg, *nreg;
11095 int rv;
5e760230
JB		 11096
11097 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
11098 return -EOPNOTSUPP;
11099
37c73b5f
BG		 11100 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
11101 if (!nreg)
11102 return -ENOMEM;
11103
11104 /* First, check if already registered. */
11105 spin_lock_bh(&rdev->beacon_registrations_lock);
11106 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11107 if (reg->nlportid == info->snd_portid) {
11108 rv = -EALREADY;
11109 goto out_err;
11110 }
11111 }
11112 /* Add it to the list */
11113 nreg->nlportid = info->snd_portid;
11114 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 11115
37c73b5f 11116 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11117
11118 return 0;
37c73b5f
BG		 11119out_err:
11120 spin_unlock_bh(&rdev->beacon_registrations_lock);
11121 kfree(nreg);
11122 return rv;
5e760230
JB		 11123}
11124
98104fde
JB		 11125static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
11126{
11127 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11128 struct wireless_dev *wdev = info->user_ptr[1];
11129 int err;
11130
11131 if (!rdev->ops->start_p2p_device)
11132 return -EOPNOTSUPP;
11133
11134 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
11135 return -EOPNOTSUPP;
11136
73c7da3d 11137 if (wdev_running(wdev))
98104fde
JB		 11138 return 0;
11139
b6a55015
LC		 11140 if (rfkill_blocked(rdev->rfkill))
11141 return -ERFKILL;
98104fde 11142
eeb126e9 11143 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 11144 if (err)
11145 return err;
11146
73c7da3d 11147 wdev->is_running = true;
98104fde 11148 rdev->opencount++;
98104fde
JB		 11149
11150 return 0;
11151}
11152
11153static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
11154{
11155 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11156 struct wireless_dev *wdev = info->user_ptr[1];
11157
11158 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
11159 return -EOPNOTSUPP;
11160
11161 if (!rdev->ops->stop_p2p_device)
11162 return -EOPNOTSUPP;
11163
f9f47529 11164 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 11165
11166 return 0;
11167}
11168
cb3b7d87
AB		 11169static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
11170{
11171 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11172 struct wireless_dev *wdev = info->user_ptr[1];
11173 struct cfg80211_nan_conf conf = {};
11174 int err;
11175
11176 if (wdev->iftype != NL80211_IFTYPE_NAN)
11177 return -EOPNOTSUPP;
11178
eeb04a96 11179 if (wdev_running(wdev))
cb3b7d87
AB		 11180 return -EEXIST;
11181
11182 if (rfkill_blocked(rdev->rfkill))
11183 return -ERFKILL;
11184
11185 if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
11186 return -EINVAL;
11187
cb3b7d87
AB		 11188 conf.master_pref =
11189 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11190 if (!conf.master_pref)
11191 return -EINVAL;
11192
8585989d
LC		 11193 if (info->attrs[NL80211_ATTR_BANDS]) {
11194 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11195
11196 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11197 return -EOPNOTSUPP;
11198
11199 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11200 return -EINVAL;
11201
11202 conf.bands = bands;
11203 }
cb3b7d87
AB		 11204
11205 err = rdev_start_nan(rdev, wdev, &conf);
11206 if (err)
11207 return err;
11208
73c7da3d 11209 wdev->is_running = true;
cb3b7d87
AB		 11210 rdev->opencount++;
11211
11212 return 0;
11213}
11214
11215static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
11216{
11217 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11218 struct wireless_dev *wdev = info->user_ptr[1];
11219
11220 if (wdev->iftype != NL80211_IFTYPE_NAN)
11221 return -EOPNOTSUPP;
11222
11223 cfg80211_stop_nan(rdev, wdev);
11224
11225 return 0;
11226}
11227
a442b761
AB		 11228static int validate_nan_filter(struct nlattr *filter_attr)
11229{
11230 struct nlattr *attr;
11231 int len = 0, n_entries = 0, rem;
11232
11233 nla_for_each_nested(attr, filter_attr, rem) {
11234 len += nla_len(attr);
11235 n_entries++;
11236 }
11237
11238 if (len >= U8_MAX)
11239 return -EINVAL;
11240
11241 return n_entries;
11242}
11243
11244static int handle_nan_filter(struct nlattr *attr_filter,
11245 struct cfg80211_nan_func *func,
11246 bool tx)
11247{
11248 struct nlattr *attr;
11249 int n_entries, rem, i;
11250 struct cfg80211_nan_func_filter *filter;
11251
11252 n_entries = validate_nan_filter(attr_filter);
11253 if (n_entries < 0)
11254 return n_entries;
11255
11256 BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters));
11257
11258 filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL);
11259 if (!filter)
11260 return -ENOMEM;
11261
11262 i = 0;
11263 nla_for_each_nested(attr, attr_filter, rem) {
b15ca182 11264 filter[i].filter = nla_memdup(attr, GFP_KERNEL);
a442b761
AB		 11265 filter[i].len = nla_len(attr);
11266 i++;
11267 }
11268 if (tx) {
11269 func->num_tx_filters = n_entries;
11270 func->tx_filters = filter;
11271 } else {
11272 func->num_rx_filters = n_entries;
11273 func->rx_filters = filter;
11274 }
11275
11276 return 0;
11277}
11278
11279static int nl80211_nan_add_func(struct sk_buff *skb,
11280 struct genl_info *info)
11281{
11282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11283 struct wireless_dev *wdev = info->user_ptr[1];
11284 struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr;
11285 struct cfg80211_nan_func *func;
11286 struct sk_buff *msg = NULL;
11287 void *hdr = NULL;
11288 int err = 0;
11289
11290 if (wdev->iftype != NL80211_IFTYPE_NAN)
11291 return -EOPNOTSUPP;
11292
73c7da3d 11293 if (!wdev_running(wdev))
a442b761
AB		 11294 return -ENOTCONN;
11295
11296 if (!info->attrs[NL80211_ATTR_NAN_FUNC])
11297 return -EINVAL;
11298
bfe2c7b1
JB		 11299 err = nla_parse_nested(tb, NL80211_NAN_FUNC_ATTR_MAX,
11300 info->attrs[NL80211_ATTR_NAN_FUNC],
fe52145f 11301 nl80211_nan_func_policy, info->extack);
a442b761
AB		 11302 if (err)
11303 return err;
11304
11305 func = kzalloc(sizeof(*func), GFP_KERNEL);
11306 if (!func)
11307 return -ENOMEM;
11308
11309 func->cookie = wdev->wiphy->cookie_counter++;
11310
11311 if (!tb[NL80211_NAN_FUNC_TYPE] ||
11312 nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]) > NL80211_NAN_FUNC_MAX_TYPE) {
11313 err = -EINVAL;
11314 goto out;
11315 }
11316
11317
11318 func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]);
11319
11320 if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) {
11321 err = -EINVAL;
11322 goto out;
11323 }
11324
11325 memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]),
11326 sizeof(func->service_id));
11327
11328 func->close_range =
11329 nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]);
11330
11331 if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) {
11332 func->serv_spec_info_len =
11333 nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]);
11334 func->serv_spec_info =
11335 kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]),
11336 func->serv_spec_info_len,
11337 GFP_KERNEL);
11338 if (!func->serv_spec_info) {
11339 err = -ENOMEM;
11340 goto out;
11341 }
11342 }
11343
11344 if (tb[NL80211_NAN_FUNC_TTL])
11345 func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]);
11346
11347 switch (func->type) {
11348 case NL80211_NAN_FUNC_PUBLISH:
11349 if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) {
11350 err = -EINVAL;
11351 goto out;
11352 }
11353
11354 func->publish_type =
11355 nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]);
11356 func->publish_bcast =
11357 nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]);
11358
11359 if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) &&
11360 func->publish_bcast) {
11361 err = -EINVAL;
11362 goto out;
11363 }
11364 break;
11365 case NL80211_NAN_FUNC_SUBSCRIBE:
11366 func->subscribe_active =
11367 nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]);
11368 break;
11369 case NL80211_NAN_FUNC_FOLLOW_UP:
11370 if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] ||
3ea15452
HC		 11371 !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] ||
11372 !tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]) {
a442b761
AB		 11373 err = -EINVAL;
11374 goto out;
11375 }
11376
11377 func->followup_id =
11378 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]);
11379 func->followup_reqid =
11380 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]);
11381 memcpy(func->followup_dest.addr,
11382 nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]),
11383 sizeof(func->followup_dest.addr));
11384 if (func->ttl) {
11385 err = -EINVAL;
11386 goto out;
11387 }
11388 break;
11389 default:
11390 err = -EINVAL;
11391 goto out;
11392 }
11393
11394 if (tb[NL80211_NAN_FUNC_SRF]) {
11395 struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR];
11396
bfe2c7b1
JB		 11397 err = nla_parse_nested(srf_tb, NL80211_NAN_SRF_ATTR_MAX,
11398 tb[NL80211_NAN_FUNC_SRF],
fe52145f 11399 nl80211_nan_srf_policy, info->extack);
a442b761
AB		 11400 if (err)
11401 goto out;
11402
11403 func->srf_include =
11404 nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]);
11405
11406 if (srf_tb[NL80211_NAN_SRF_BF]) {
11407 if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] ||
11408 !srf_tb[NL80211_NAN_SRF_BF_IDX]) {
11409 err = -EINVAL;
11410 goto out;
11411 }
11412
11413 func->srf_bf_len =
11414 nla_len(srf_tb[NL80211_NAN_SRF_BF]);
11415 func->srf_bf =
11416 kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]),
11417 func->srf_bf_len, GFP_KERNEL);
11418 if (!func->srf_bf) {
11419 err = -ENOMEM;
11420 goto out;
11421 }
11422
11423 func->srf_bf_idx =
11424 nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]);
11425 } else {
11426 struct nlattr *attr, *mac_attr =
11427 srf_tb[NL80211_NAN_SRF_MAC_ADDRS];
11428 int n_entries, rem, i = 0;
11429
11430 if (!mac_attr) {
11431 err = -EINVAL;
11432 goto out;
11433 }
11434
11435 n_entries = validate_acl_mac_addrs(mac_attr);
11436 if (n_entries <= 0) {
11437 err = -EINVAL;
11438 goto out;
11439 }
11440
11441 func->srf_num_macs = n_entries;
11442 func->srf_macs =
11443 kzalloc(sizeof(*func->srf_macs) * n_entries,
11444 GFP_KERNEL);
11445 if (!func->srf_macs) {
11446 err = -ENOMEM;
11447 goto out;
11448 }
11449
11450 nla_for_each_nested(attr, mac_attr, rem)
11451 memcpy(func->srf_macs[i++].addr, nla_data(attr),
11452 sizeof(*func->srf_macs));
11453 }
11454 }
11455
11456 if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) {
11457 err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER],
11458 func, true);
11459 if (err)
11460 goto out;
11461 }
11462
11463 if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) {
11464 err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER],
11465 func, false);
11466 if (err)
11467 goto out;
11468 }
11469
11470 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11471 if (!msg) {
11472 err = -ENOMEM;
11473 goto out;
11474 }
11475
11476 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11477 NL80211_CMD_ADD_NAN_FUNCTION);
11478 /* This can't really happen - we just allocated 4KB */
11479 if (WARN_ON(!hdr)) {
11480 err = -ENOMEM;
11481 goto out;
11482 }
11483
11484 err = rdev_add_nan_func(rdev, wdev, func);
11485out:
11486 if (err < 0) {
11487 cfg80211_free_nan_func(func);
11488 nlmsg_free(msg);
11489 return err;
11490 }
11491
11492 /* propagate the instance id and cookie to userspace */
11493 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie,
11494 NL80211_ATTR_PAD))
11495 goto nla_put_failure;
11496
11497 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11498 if (!func_attr)
11499 goto nla_put_failure;
11500
11501 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID,
11502 func->instance_id))
11503 goto nla_put_failure;
11504
11505 nla_nest_end(msg, func_attr);
11506
11507 genlmsg_end(msg, hdr);
11508 return genlmsg_reply(msg, info);
11509
11510nla_put_failure:
11511 nlmsg_free(msg);
11512 return -ENOBUFS;
11513}
11514
11515static int nl80211_nan_del_func(struct sk_buff *skb,
11516 struct genl_info *info)
11517{
11518 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11519 struct wireless_dev *wdev = info->user_ptr[1];
11520 u64 cookie;
11521
11522 if (wdev->iftype != NL80211_IFTYPE_NAN)
11523 return -EOPNOTSUPP;
11524
73c7da3d 11525 if (!wdev_running(wdev))
a442b761
AB		 11526 return -ENOTCONN;
11527
11528 if (!info->attrs[NL80211_ATTR_COOKIE])
11529 return -EINVAL;
11530
a442b761
AB		 11531 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
11532
11533 rdev_del_nan_func(rdev, wdev, cookie);
11534
11535 return 0;
11536}
11537
a5a9dcf2
AB		 11538static int nl80211_nan_change_config(struct sk_buff *skb,
11539 struct genl_info *info)
11540{
11541 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11542 struct wireless_dev *wdev = info->user_ptr[1];
11543 struct cfg80211_nan_conf conf = {};
11544 u32 changed = 0;
11545
11546 if (wdev->iftype != NL80211_IFTYPE_NAN)
11547 return -EOPNOTSUPP;
11548
73c7da3d 11549 if (!wdev_running(wdev))
a5a9dcf2
AB		 11550 return -ENOTCONN;
11551
11552 if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) {
11553 conf.master_pref =
11554 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11555 if (conf.master_pref <= 1 || conf.master_pref == 255)
11556 return -EINVAL;
11557
11558 changed |= CFG80211_NAN_CONF_CHANGED_PREF;
11559 }
11560
8585989d
LC		 11561 if (info->attrs[NL80211_ATTR_BANDS]) {
11562 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11563
11564 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11565 return -EOPNOTSUPP;
11566
11567 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11568 return -EINVAL;
11569
11570 conf.bands = bands;
11571 changed |= CFG80211_NAN_CONF_CHANGED_BANDS;
a5a9dcf2
AB		 11572 }
11573
11574 if (!changed)
11575 return -EINVAL;
11576
11577 return rdev_nan_change_conf(rdev, wdev, &conf, changed);
11578}
11579
50bcd31d
AB		 11580void cfg80211_nan_match(struct wireless_dev *wdev,
11581 struct cfg80211_nan_match_params *match, gfp_t gfp)
11582{
11583 struct wiphy *wiphy = wdev->wiphy;
11584 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11585 struct nlattr *match_attr, *local_func_attr, *peer_func_attr;
11586 struct sk_buff *msg;
11587 void *hdr;
11588
11589 if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr))
11590 return;
11591
11592 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11593 if (!msg)
11594 return;
11595
11596 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH);
11597 if (!hdr) {
11598 nlmsg_free(msg);
11599 return;
11600 }
11601
11602 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11603 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11604 wdev->netdev->ifindex)) ||
11605 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11606 NL80211_ATTR_PAD))
11607 goto nla_put_failure;
11608
11609 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie,
11610 NL80211_ATTR_PAD) ||
11611 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr))
11612 goto nla_put_failure;
11613
11614 match_attr = nla_nest_start(msg, NL80211_ATTR_NAN_MATCH);
11615 if (!match_attr)
11616 goto nla_put_failure;
11617
11618 local_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_LOCAL);
11619 if (!local_func_attr)
11620 goto nla_put_failure;
11621
11622 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id))
11623 goto nla_put_failure;
11624
11625 nla_nest_end(msg, local_func_attr);
11626
11627 peer_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_PEER);
11628 if (!peer_func_attr)
11629 goto nla_put_failure;
11630
11631 if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) ||
11632 nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id))
11633 goto nla_put_failure;
11634
11635 if (match->info && match->info_len &&
11636 nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len,
11637 match->info))
11638 goto nla_put_failure;
11639
11640 nla_nest_end(msg, peer_func_attr);
11641 nla_nest_end(msg, match_attr);
11642 genlmsg_end(msg, hdr);
11643
11644 if (!wdev->owner_nlportid)
11645 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11646 msg, 0, NL80211_MCGRP_NAN, gfp);
11647 else
11648 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11649 wdev->owner_nlportid);
11650
11651 return;
11652
11653nla_put_failure:
11654 nlmsg_free(msg);
11655}
11656EXPORT_SYMBOL(cfg80211_nan_match);
11657
368e5a7b
AB		 11658void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
11659 u8 inst_id,
11660 enum nl80211_nan_func_term_reason reason,
11661 u64 cookie, gfp_t gfp)
11662{
11663 struct wiphy *wiphy = wdev->wiphy;
11664 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11665 struct sk_buff *msg;
11666 struct nlattr *func_attr;
11667 void *hdr;
11668
11669 if (WARN_ON(!inst_id))
11670 return;
11671
11672 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11673 if (!msg)
11674 return;
11675
11676 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION);
11677 if (!hdr) {
11678 nlmsg_free(msg);
11679 return;
11680 }
11681
11682 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11683 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11684 wdev->netdev->ifindex)) ||
11685 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11686 NL80211_ATTR_PAD))
11687 goto nla_put_failure;
11688
11689 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11690 NL80211_ATTR_PAD))
11691 goto nla_put_failure;
11692
11693 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11694 if (!func_attr)
11695 goto nla_put_failure;
11696
11697 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) ||
11698 nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason))
11699 goto nla_put_failure;
11700
11701 nla_nest_end(msg, func_attr);
11702 genlmsg_end(msg, hdr);
11703
11704 if (!wdev->owner_nlportid)
11705 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11706 msg, 0, NL80211_MCGRP_NAN, gfp);
11707 else
11708 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11709 wdev->owner_nlportid);
11710
11711 return;
11712
11713nla_put_failure:
11714 nlmsg_free(msg);
11715}
11716EXPORT_SYMBOL(cfg80211_nan_func_terminated);
11717
3713b4e3
JB		 11718static int nl80211_get_protocol_features(struct sk_buff *skb,
11719 struct genl_info *info)
11720{
11721 void *hdr;
11722 struct sk_buff *msg;
11723
11724 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11725 if (!msg)
11726 return -ENOMEM;
11727
11728 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11729 NL80211_CMD_GET_PROTOCOL_FEATURES);
11730 if (!hdr)
11731 goto nla_put_failure;
11732
11733 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
11734 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
11735 goto nla_put_failure;
11736
11737 genlmsg_end(msg, hdr);
11738 return genlmsg_reply(msg, info);
11739
11740 nla_put_failure:
11741 kfree_skb(msg);
11742 return -ENOBUFS;
11743}
11744
355199e0
JM		 11745static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
11746{
11747 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11748 struct cfg80211_update_ft_ies_params ft_params;
11749 struct net_device *dev = info->user_ptr[1];
11750
11751 if (!rdev->ops->update_ft_ies)
11752 return -EOPNOTSUPP;
11753
11754 if (!info->attrs[NL80211_ATTR_MDID] ||
11755 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
11756 return -EINVAL;
11757
11758 memset(&ft_params, 0, sizeof(ft_params));
11759 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
11760 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
11761 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
11762
11763 return rdev_update_ft_ies(rdev, dev, &ft_params);
11764}
11765
5de17984
AS		 11766static int nl80211_crit_protocol_start(struct sk_buff *skb,
11767 struct genl_info *info)
11768{
11769 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11770 struct wireless_dev *wdev = info->user_ptr[1];
11771 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
11772 u16 duration;
11773 int ret;
11774
11775 if (!rdev->ops->crit_proto_start)
11776 return -EOPNOTSUPP;
11777
11778 if (WARN_ON(!rdev->ops->crit_proto_stop))
11779 return -EINVAL;
11780
11781 if (rdev->crit_proto_nlportid)
11782 return -EBUSY;
11783
11784 /* determine protocol if provided */
11785 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
11786 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
11787
11788 if (proto >= NUM_NL80211_CRIT_PROTO)
11789 return -EINVAL;
11790
11791 /* timeout must be provided */
11792 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
11793 return -EINVAL;
11794
11795 duration =
11796 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
11797
11798 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
11799 return -ERANGE;
11800
11801 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
11802 if (!ret)
11803 rdev->crit_proto_nlportid = info->snd_portid;
11804
11805 return ret;
11806}
11807
11808static int nl80211_crit_protocol_stop(struct sk_buff *skb,
11809 struct genl_info *info)
11810{
11811 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11812 struct wireless_dev *wdev = info->user_ptr[1];
11813
11814 if (!rdev->ops->crit_proto_stop)
11815 return -EOPNOTSUPP;
11816
11817 if (rdev->crit_proto_nlportid) {
11818 rdev->crit_proto_nlportid = 0;
11819 rdev_crit_proto_stop(rdev, wdev);
11820 }
11821 return 0;
11822}
11823
ad7e718c
JB		 11824static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
11825{
11826 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11827 struct wireless_dev *wdev =
11828 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
11829 int i, err;
11830 u32 vid, subcmd;
11831
11832 if (!rdev->wiphy.vendor_commands)
11833 return -EOPNOTSUPP;
11834
11835 if (IS_ERR(wdev)) {
11836 err = PTR_ERR(wdev);
11837 if (err != -EINVAL)
11838 return err;
11839 wdev = NULL;
11840 } else if (wdev->wiphy != &rdev->wiphy) {
11841 return -EINVAL;
11842 }
11843
11844 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
11845 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
11846 return -EINVAL;
11847
11848 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
11849 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
11850 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
11851 const struct wiphy_vendor_command *vcmd;
11852 void *data = NULL;
11853 int len = 0;
11854
11855 vcmd = &rdev->wiphy.vendor_commands[i];
11856
11857 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11858 continue;
11859
11860 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11861 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11862 if (!wdev)
11863 return -EINVAL;
11864 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11865 !wdev->netdev)
11866 return -EINVAL;
11867
11868 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
73c7da3d 11869 if (!wdev_running(wdev))
ad7e718c
JB		 11870 return -ENETDOWN;
11871 }
7bdbe400
JB		 11872
11873 if (!vcmd->doit)
11874 return -EOPNOTSUPP;
ad7e718c
JB		 11875 } else {
11876 wdev = NULL;
11877 }
11878
11879 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
11880 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11881 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11882 }
11883
11884 rdev->cur_cmd_info = info;
11885 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
11886 data, len);
11887 rdev->cur_cmd_info = NULL;
11888 return err;
11889 }
11890
11891 return -EOPNOTSUPP;
11892}
11893
7bdbe400
JB		 11894static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
11895 struct netlink_callback *cb,
11896 struct cfg80211_registered_device **rdev,
11897 struct wireless_dev **wdev)
11898{
c90c39da 11899 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
7bdbe400
JB		 11900 u32 vid, subcmd;
11901 unsigned int i;
11902 int vcmd_idx = -1;
11903 int err;
11904 void *data = NULL;
11905 unsigned int data_len = 0;
11906
7bdbe400
JB		 11907 if (cb->args[0]) {
11908 /* subtract the 1 again here */
11909 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
11910 struct wireless_dev *tmp;
11911
ea90e0dc
JB		 11912 if (!wiphy)
11913 return -ENODEV;
7bdbe400
JB		 11914 *rdev = wiphy_to_rdev(wiphy);
11915 *wdev = NULL;
11916
11917 if (cb->args[1]) {
53873f13 11918 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
7bdbe400
JB		 11919 if (tmp->identifier == cb->args[1] - 1) {
11920 *wdev = tmp;
11921 break;
11922 }
11923 }
11924 }
11925
11926 /* keep rtnl locked in successful case */
11927 return 0;
11928 }
11929
fceb6435
JB		 11930 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, attrbuf,
11931 nl80211_fam.maxattr, nl80211_policy, NULL);
7bdbe400 11932 if (err)
ea90e0dc 11933 return err;
7bdbe400 11934
c90c39da 11935 if (!attrbuf[NL80211_ATTR_VENDOR_ID] ||
ea90e0dc
JB		 11936 !attrbuf[NL80211_ATTR_VENDOR_SUBCMD])
11937 return -EINVAL;
7bdbe400 11938
c90c39da 11939 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), attrbuf);
7bdbe400
JB		 11940 if (IS_ERR(*wdev))
11941 *wdev = NULL;
11942
c90c39da 11943 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
ea90e0dc
JB		 11944 if (IS_ERR(*rdev))
11945 return PTR_ERR(*rdev);
7bdbe400 11946
c90c39da
JB		 11947 vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]);
11948 subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
7bdbe400
JB		 11949
11950 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
11951 const struct wiphy_vendor_command *vcmd;
11952
11953 vcmd = &(*rdev)->wiphy.vendor_commands[i];
11954
11955 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11956 continue;
11957
ea90e0dc
JB		 11958 if (!vcmd->dumpit)
11959 return -EOPNOTSUPP;
7bdbe400
JB		 11960
11961 vcmd_idx = i;
11962 break;
11963 }
11964
ea90e0dc
JB		 11965 if (vcmd_idx < 0)
11966 return -EOPNOTSUPP;
7bdbe400 11967
c90c39da
JB		 11968 if (attrbuf[NL80211_ATTR_VENDOR_DATA]) {
11969 data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]);
11970 data_len = nla_len(attrbuf[NL80211_ATTR_VENDOR_DATA]);
7bdbe400
JB		 11971 }
11972
11973 /* 0 is the first index - add 1 to parse only once */
11974 cb->args[0] = (*rdev)->wiphy_idx + 1;
11975 /* add 1 to know if it was NULL */
11976 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
11977 cb->args[2] = vcmd_idx;
11978 cb->args[3] = (unsigned long)data;
11979 cb->args[4] = data_len;
11980
11981 /* keep rtnl locked in successful case */
11982 return 0;
7bdbe400
JB		 11983}
11984
11985static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
11986 struct netlink_callback *cb)
11987{
11988 struct cfg80211_registered_device *rdev;
11989 struct wireless_dev *wdev;
11990 unsigned int vcmd_idx;
11991 const struct wiphy_vendor_command *vcmd;
11992 void *data;
11993 int data_len;
11994 int err;
11995 struct nlattr *vendor_data;
11996
ea90e0dc 11997 rtnl_lock();
7bdbe400
JB		 11998 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
11999 if (err)
ea90e0dc 12000 goto out;
7bdbe400
JB		 12001
12002 vcmd_idx = cb->args[2];
12003 data = (void *)cb->args[3];
12004 data_len = cb->args[4];
12005 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
12006
12007 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
12008 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
ea90e0dc
JB		 12009 if (!wdev) {
12010 err = -EINVAL;
12011 goto out;
12012 }
7bdbe400 12013 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
ea90e0dc
JB		 12014 !wdev->netdev) {
12015 err = -EINVAL;
12016 goto out;
12017 }
7bdbe400
JB		 12018
12019 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
ea90e0dc
JB		 12020 if (!wdev_running(wdev)) {
12021 err = -ENETDOWN;
12022 goto out;
12023 }
7bdbe400
JB		 12024 }
12025 }
12026
12027 while (1) {
12028 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
12029 cb->nlh->nlmsg_seq, NLM_F_MULTI,
12030 NL80211_CMD_VENDOR);
12031 if (!hdr)
12032 break;
12033
12034 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 12035 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
12036 wdev_id(wdev),
12037 NL80211_ATTR_PAD))) {
7bdbe400
JB		 12038 genlmsg_cancel(skb, hdr);
12039 break;
12040 }
12041
12042 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
12043 if (!vendor_data) {
12044 genlmsg_cancel(skb, hdr);
12045 break;
12046 }
12047
12048 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
12049 (unsigned long *)&cb->args[5]);
12050 nla_nest_end(skb, vendor_data);
12051
12052 if (err == -ENOBUFS || err == -ENOENT) {
12053 genlmsg_cancel(skb, hdr);
12054 break;
12055 } else if (err) {
12056 genlmsg_cancel(skb, hdr);
12057 goto out;
12058 }
12059
12060 genlmsg_end(skb, hdr);
12061 }
12062
12063 err = skb->len;
12064 out:
12065 rtnl_unlock();
12066 return err;
12067}
12068
ad7e718c
JB		 12069struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
12070 enum nl80211_commands cmd,
12071 enum nl80211_attrs attr,
12072 int approxlen)
12073{
f26cbf40 12074 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 12075
12076 if (WARN_ON(!rdev->cur_cmd_info))
12077 return NULL;
12078
6c09e791 12079 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 12080 rdev->cur_cmd_info->snd_portid,
12081 rdev->cur_cmd_info->snd_seq,
567ffc35 12082 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 12083}
12084EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
12085
12086int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
12087{
12088 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
12089 void *hdr = ((void **)skb->cb)[1];
12090 struct nlattr *data = ((void **)skb->cb)[2];
12091
bd8c78e7
JB		 12092 /* clear CB data for netlink core to own from now on */
12093 memset(skb->cb, 0, sizeof(skb->cb));
12094
ad7e718c
JB		 12095 if (WARN_ON(!rdev->cur_cmd_info)) {
12096 kfree_skb(skb);
12097 return -EINVAL;
12098 }
12099
12100 nla_nest_end(skb, data);
12101 genlmsg_end(skb, hdr);
12102 return genlmsg_reply(skb, rdev->cur_cmd_info);
12103}
12104EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
12105
fa9ffc74
KP		 12106static int nl80211_set_qos_map(struct sk_buff *skb,
12107 struct genl_info *info)
12108{
12109 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12110 struct cfg80211_qos_map *qos_map = NULL;
12111 struct net_device *dev = info->user_ptr[1];
12112 u8 *pos, len, num_des, des_len, des;
12113 int ret;
12114
12115 if (!rdev->ops->set_qos_map)
12116 return -EOPNOTSUPP;
12117
12118 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
12119 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
12120 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
12121
12122 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
12123 len > IEEE80211_QOS_MAP_LEN_MAX)
12124 return -EINVAL;
12125
12126 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
12127 if (!qos_map)
12128 return -ENOMEM;
12129
12130 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
12131 if (num_des) {
12132 des_len = num_des *
12133 sizeof(struct cfg80211_dscp_exception);
12134 memcpy(qos_map->dscp_exception, pos, des_len);
12135 qos_map->num_des = num_des;
12136 for (des = 0; des < num_des; des++) {
12137 if (qos_map->dscp_exception[des].up > 7) {
12138 kfree(qos_map);
12139 return -EINVAL;
12140 }
12141 }
12142 pos += des_len;
12143 }
12144 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
12145 }
12146
12147 wdev_lock(dev->ieee80211_ptr);
12148 ret = nl80211_key_allowed(dev->ieee80211_ptr);
12149 if (!ret)
12150 ret = rdev_set_qos_map(rdev, dev, qos_map);
12151 wdev_unlock(dev->ieee80211_ptr);
12152
12153 kfree(qos_map);
12154 return ret;
12155}
12156
960d01ac
JB		 12157static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
12158{
12159 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12160 struct net_device *dev = info->user_ptr[1];
12161 struct wireless_dev *wdev = dev->ieee80211_ptr;
12162 const u8 *peer;
12163 u8 tsid, up;
12164 u16 admitted_time = 0;
12165 int err;
12166
723e73ac 12167 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 12168 return -EOPNOTSUPP;
12169
12170 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
12171 !info->attrs[NL80211_ATTR_USER_PRIO])
12172 return -EINVAL;
12173
12174 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
12175 if (tsid >= IEEE80211_NUM_TIDS)
12176 return -EINVAL;
12177
12178 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
12179 if (up >= IEEE80211_NUM_UPS)
12180 return -EINVAL;
12181
12182 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 12183 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 12184 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 12185 * need more attributes for that (e.g. BA session requirement);
12186 * change the WMM adminssion test above to allow both then
960d01ac
JB		 12187 */
12188 return -EINVAL;
12189 }
12190
12191 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
12192
12193 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
12194 admitted_time =
12195 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
12196 if (!admitted_time)
12197 return -EINVAL;
12198 }
12199
12200 wdev_lock(wdev);
12201 switch (wdev->iftype) {
12202 case NL80211_IFTYPE_STATION:
12203 case NL80211_IFTYPE_P2P_CLIENT:
12204 if (wdev->current_bss)
12205 break;
12206 err = -ENOTCONN;
12207 goto out;
12208 default:
12209 err = -EOPNOTSUPP;
12210 goto out;
12211 }
12212
12213 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
12214
12215 out:
12216 wdev_unlock(wdev);
12217 return err;
12218}
12219
12220static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
12221{
12222 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12223 struct net_device *dev = info->user_ptr[1];
12224 struct wireless_dev *wdev = dev->ieee80211_ptr;
12225 const u8 *peer;
12226 u8 tsid;
12227 int err;
12228
12229 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
12230 return -EINVAL;
12231
12232 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
12233 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
12234
12235 wdev_lock(wdev);
12236 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
12237 wdev_unlock(wdev);
12238
12239 return err;
12240}
12241
1057d35e
AN		 12242static int nl80211_tdls_channel_switch(struct sk_buff *skb,
12243 struct genl_info *info)
12244{
12245 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12246 struct net_device *dev = info->user_ptr[1];
12247 struct wireless_dev *wdev = dev->ieee80211_ptr;
12248 struct cfg80211_chan_def chandef = {};
12249 const u8 *addr;
12250 u8 oper_class;
12251 int err;
12252
12253 if (!rdev->ops->tdls_channel_switch ||
12254 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12255 return -EOPNOTSUPP;
12256
12257 switch (dev->ieee80211_ptr->iftype) {
12258 case NL80211_IFTYPE_STATION:
12259 case NL80211_IFTYPE_P2P_CLIENT:
12260 break;
12261 default:
12262 return -EOPNOTSUPP;
12263 }
12264
12265 if (!info->attrs[NL80211_ATTR_MAC] ||
12266 !info->attrs[NL80211_ATTR_OPER_CLASS])
12267 return -EINVAL;
12268
12269 err = nl80211_parse_chandef(rdev, info, &chandef);
12270 if (err)
12271 return err;
12272
12273 /*
12274 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
12275 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
12276 * specification is not defined for them.
12277 */
57fbcce3 12278 if (chandef.chan->band == NL80211_BAND_2GHZ &&
1057d35e
AN		 12279 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
12280 chandef.width != NL80211_CHAN_WIDTH_20)
12281 return -EINVAL;
12282
12283 /* we will be active on the TDLS link */
923b352f
AN		 12284 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
12285 wdev->iftype))
1057d35e
AN		 12286 return -EINVAL;
12287
12288 /* don't allow switching to DFS channels */
12289 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
12290 return -EINVAL;
12291
12292 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12293 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
12294
12295 wdev_lock(wdev);
12296 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
12297 wdev_unlock(wdev);
12298
12299 return err;
12300}
12301
12302static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
12303 struct genl_info *info)
12304{
12305 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12306 struct net_device *dev = info->user_ptr[1];
12307 struct wireless_dev *wdev = dev->ieee80211_ptr;
12308 const u8 *addr;
12309
12310 if (!rdev->ops->tdls_channel_switch ||
12311 !rdev->ops->tdls_cancel_channel_switch ||
12312 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12313 return -EOPNOTSUPP;
12314
12315 switch (dev->ieee80211_ptr->iftype) {
12316 case NL80211_IFTYPE_STATION:
12317 case NL80211_IFTYPE_P2P_CLIENT:
12318 break;
12319 default:
12320 return -EOPNOTSUPP;
12321 }
12322
12323 if (!info->attrs[NL80211_ATTR_MAC])
12324 return -EINVAL;
12325
12326 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12327
12328 wdev_lock(wdev);
12329 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
12330 wdev_unlock(wdev);
12331
12332 return 0;
12333}
12334
ce0ce13a
MB		 12335static int nl80211_set_multicast_to_unicast(struct sk_buff *skb,
12336 struct genl_info *info)
12337{
12338 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12339 struct net_device *dev = info->user_ptr[1];
12340 struct wireless_dev *wdev = dev->ieee80211_ptr;
12341 const struct nlattr *nla;
12342 bool enabled;
12343
ce0ce13a
MB		 12344 if (!rdev->ops->set_multicast_to_unicast)
12345 return -EOPNOTSUPP;
12346
12347 if (wdev->iftype != NL80211_IFTYPE_AP &&
12348 wdev->iftype != NL80211_IFTYPE_P2P_GO)
12349 return -EOPNOTSUPP;
12350
12351 nla = info->attrs[NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED];
12352 enabled = nla_get_flag(nla);
12353
12354 return rdev_set_multicast_to_unicast(rdev, dev, enabled);
12355}
12356
3a00df57
AS		 12357static int nl80211_set_pmk(struct sk_buff *skb, struct genl_info *info)
12358{
12359 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12360 struct net_device *dev = info->user_ptr[1];
12361 struct wireless_dev *wdev = dev->ieee80211_ptr;
12362 struct cfg80211_pmk_conf pmk_conf = {};
12363 int ret;
12364
12365 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12366 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12367 return -EOPNOTSUPP;
12368
12369 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12370 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
12371 return -EOPNOTSUPP;
12372
12373 if (!info->attrs[NL80211_ATTR_MAC] || !info->attrs[NL80211_ATTR_PMK])
12374 return -EINVAL;
12375
12376 wdev_lock(wdev);
12377 if (!wdev->current_bss) {
12378 ret = -ENOTCONN;
12379 goto out;
12380 }
12381
12382 pmk_conf.aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
12383 if (memcmp(pmk_conf.aa, wdev->current_bss->pub.bssid, ETH_ALEN)) {
12384 ret = -EINVAL;
12385 goto out;
12386 }
12387
12388 pmk_conf.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
12389 pmk_conf.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
12390 if (pmk_conf.pmk_len != WLAN_PMK_LEN &&
12391 pmk_conf.pmk_len != WLAN_PMK_LEN_SUITE_B_192) {
12392 ret = -EINVAL;
12393 goto out;
12394 }
12395
12396 if (info->attrs[NL80211_ATTR_PMKR0_NAME]) {
12397 int r0_name_len = nla_len(info->attrs[NL80211_ATTR_PMKR0_NAME]);
12398
12399 if (r0_name_len != WLAN_PMK_NAME_LEN) {
12400 ret = -EINVAL;
12401 goto out;
12402 }
12403
12404 pmk_conf.pmk_r0_name =
12405 nla_data(info->attrs[NL80211_ATTR_PMKR0_NAME]);
12406 }
12407
12408 ret = rdev_set_pmk(rdev, dev, &pmk_conf);
12409out:
12410 wdev_unlock(wdev);
12411 return ret;
12412}
12413
12414static int nl80211_del_pmk(struct sk_buff *skb, struct genl_info *info)
12415{
12416 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12417 struct net_device *dev = info->user_ptr[1];
12418 struct wireless_dev *wdev = dev->ieee80211_ptr;
12419 const u8 *aa;
12420 int ret;
12421
12422 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12423 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12424 return -EOPNOTSUPP;
12425
12426 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12427 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
12428 return -EOPNOTSUPP;
12429
12430 if (!info->attrs[NL80211_ATTR_MAC])
12431 return -EINVAL;
12432
12433 wdev_lock(wdev);
12434 aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
12435 ret = rdev_del_pmk(rdev, dev, aa);
12436 wdev_unlock(wdev);
12437
12438 return ret;
12439}
12440
4c476991
JB		 12441#define NL80211_FLAG_NEED_WIPHY 0x01
12442#define NL80211_FLAG_NEED_NETDEV 0x02
12443#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 12444#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
12445#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
12446 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 12447#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 12448/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 12449#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
12450 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 12451#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 12452
f84f771d 12453static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 12454 struct genl_info *info)
12455{
12456 struct cfg80211_registered_device *rdev;
89a54e48 12457 struct wireless_dev *wdev;
4c476991 12458 struct net_device *dev;
4c476991
JB		 12459 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
12460
12461 if (rtnl)
12462 rtnl_lock();
12463
12464 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 12465 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 12466 if (IS_ERR(rdev)) {
12467 if (rtnl)
12468 rtnl_unlock();
12469 return PTR_ERR(rdev);
12470 }
12471 info->user_ptr[0] = rdev;
1bf614ef
JB		 12472 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
12473 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 12474 ASSERT_RTNL();
12475
89a54e48
JB		 12476 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
12477 info->attrs);
12478 if (IS_ERR(wdev)) {
4c476991
JB		 12479 if (rtnl)
12480 rtnl_unlock();
89a54e48 12481 return PTR_ERR(wdev);
4c476991 12482 }
89a54e48 12483
89a54e48 12484 dev = wdev->netdev;
f26cbf40 12485 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 12486
1bf614ef
JB		 12487 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
12488 if (!dev) {
1bf614ef
JB		 12489 if (rtnl)
12490 rtnl_unlock();
12491 return -EINVAL;
12492 }
12493
12494 info->user_ptr[1] = dev;
12495 } else {
12496 info->user_ptr[1] = wdev;
41265714 12497 }
1bf614ef 12498
73c7da3d
AVS		 12499 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
12500 !wdev_running(wdev)) {
12501 if (rtnl)
12502 rtnl_unlock();
12503 return -ENETDOWN;
12504 }
1bf614ef 12505
73c7da3d 12506 if (dev)
1bf614ef 12507 dev_hold(dev);
89a54e48 12508
4c476991 12509 info->user_ptr[0] = rdev;
4c476991
JB		 12510 }
12511
12512 return 0;
12513}
12514
f84f771d 12515static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 12516 struct genl_info *info)
12517{
1bf614ef
JB		 12518 if (info->user_ptr[1]) {
12519 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
12520 struct wireless_dev *wdev = info->user_ptr[1];
12521
12522 if (wdev->netdev)
12523 dev_put(wdev->netdev);
12524 } else {
12525 dev_put(info->user_ptr[1]);
12526 }
12527 }
5393b917 12528
4c476991
JB		 12529 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
12530 rtnl_unlock();
5393b917
JB		 12531
12532 /* If needed, clear the netlink message payload from the SKB
12533 * as it might contain key data that shouldn't stick around on
12534 * the heap after the SKB is freed. The netlink message header
12535 * is still needed for further processing, so leave it intact.
12536 */
12537 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
12538 struct nlmsghdr *nlh = nlmsg_hdr(skb);
12539
12540 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
12541 }
4c476991
JB		 12542}
12543
4534de83 12544static const struct genl_ops nl80211_ops[] = {
55682965
JB		 12545 {
12546 .cmd = NL80211_CMD_GET_WIPHY,
12547 .doit = nl80211_get_wiphy,
12548 .dumpit = nl80211_dump_wiphy,
86e8cf98 12549 .done = nl80211_dump_wiphy_done,
55682965
JB		 12550 .policy = nl80211_policy,
12551 /* can be retrieved by unprivileged users */
5fe231e8
JB		 12552 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12553 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12554 },
12555 {
12556 .cmd = NL80211_CMD_SET_WIPHY,
12557 .doit = nl80211_set_wiphy,
12558 .policy = nl80211_policy,
5617c6cd 12559 .flags = GENL_UNS_ADMIN_PERM,
4c476991 12560 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 12561 },
12562 {
12563 .cmd = NL80211_CMD_GET_INTERFACE,
12564 .doit = nl80211_get_interface,
12565 .dumpit = nl80211_dump_interface,
12566 .policy = nl80211_policy,
12567 /* can be retrieved by unprivileged users */
5fe231e8
JB		 12568 .internal_flags = NL80211_FLAG_NEED_WDEV |
12569 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12570 },
12571 {
12572 .cmd = NL80211_CMD_SET_INTERFACE,
12573 .doit = nl80211_set_interface,
12574 .policy = nl80211_policy,
5617c6cd 12575 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12576 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12577 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12578 },
12579 {
12580 .cmd = NL80211_CMD_NEW_INTERFACE,
12581 .doit = nl80211_new_interface,
12582 .policy = nl80211_policy,
5617c6cd 12583 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12584 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12585 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12586 },
12587 {
12588 .cmd = NL80211_CMD_DEL_INTERFACE,
12589 .doit = nl80211_del_interface,
12590 .policy = nl80211_policy,
5617c6cd 12591 .flags = GENL_UNS_ADMIN_PERM,
84efbb84 12592 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 12593 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 12594 },
12595 {
12596 .cmd = NL80211_CMD_GET_KEY,
12597 .doit = nl80211_get_key,
12598 .policy = nl80211_policy,
5617c6cd 12599 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12600 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12601 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 12602 },
12603 {
12604 .cmd = NL80211_CMD_SET_KEY,
12605 .doit = nl80211_set_key,
12606 .policy = nl80211_policy,
5617c6cd 12607 .flags = GENL_UNS_ADMIN_PERM,
41265714 12608 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12609 NL80211_FLAG_NEED_RTNL |
12610 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 12611 },
12612 {
12613 .cmd = NL80211_CMD_NEW_KEY,
12614 .doit = nl80211_new_key,
12615 .policy = nl80211_policy,
5617c6cd 12616 .flags = GENL_UNS_ADMIN_PERM,
41265714 12617 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12618 NL80211_FLAG_NEED_RTNL |
12619 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 12620 },
12621 {
12622 .cmd = NL80211_CMD_DEL_KEY,
12623 .doit = nl80211_del_key,
12624 .policy = nl80211_policy,
5617c6cd 12625 .flags = GENL_UNS_ADMIN_PERM,
41265714 12626 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12627 NL80211_FLAG_NEED_RTNL,
55682965 12628 },
ed1b6cc7
JB		 12629 {
12630 .cmd = NL80211_CMD_SET_BEACON,
12631 .policy = nl80211_policy,
5617c6cd 12632 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12633 .doit = nl80211_set_beacon,
2b5f8b0b 12634 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12635 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 12636 },
12637 {
8860020e 12638 .cmd = NL80211_CMD_START_AP,
ed1b6cc7 12639 .policy = nl80211_policy,
5617c6cd 12640 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12641 .doit = nl80211_start_ap,
2b5f8b0b 12642 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12643 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 12644 },
12645 {
8860020e 12646 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7 12647 .policy = nl80211_policy,
5617c6cd 12648 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12649 .doit = nl80211_stop_ap,
2b5f8b0b 12650 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12651 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 12652 },
5727ef1b
JB		 12653 {
12654 .cmd = NL80211_CMD_GET_STATION,
12655 .doit = nl80211_get_station,
2ec600d6 12656 .dumpit = nl80211_dump_station,
5727ef1b 12657 .policy = nl80211_policy,
4c476991
JB		 12658 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12659 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12660 },
12661 {
12662 .cmd = NL80211_CMD_SET_STATION,
12663 .doit = nl80211_set_station,
12664 .policy = nl80211_policy,
5617c6cd 12665 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12666 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12667 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12668 },
12669 {
12670 .cmd = NL80211_CMD_NEW_STATION,
12671 .doit = nl80211_new_station,
12672 .policy = nl80211_policy,
5617c6cd 12673 .flags = GENL_UNS_ADMIN_PERM,
41265714 12674 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12675 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12676 },
12677 {
12678 .cmd = NL80211_CMD_DEL_STATION,
12679 .doit = nl80211_del_station,
12680 .policy = nl80211_policy,
5617c6cd 12681 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12682 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12683 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12684 },
12685 {
12686 .cmd = NL80211_CMD_GET_MPATH,
12687 .doit = nl80211_get_mpath,
12688 .dumpit = nl80211_dump_mpath,
12689 .policy = nl80211_policy,
5617c6cd 12690 .flags = GENL_UNS_ADMIN_PERM,
41265714 12691 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12692 NL80211_FLAG_NEED_RTNL,
2ec600d6 12693 },
66be7d2b
HR		 12694 {
12695 .cmd = NL80211_CMD_GET_MPP,
12696 .doit = nl80211_get_mpp,
12697 .dumpit = nl80211_dump_mpp,
12698 .policy = nl80211_policy,
5617c6cd 12699 .flags = GENL_UNS_ADMIN_PERM,
66be7d2b
HR		 12700 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12701 NL80211_FLAG_NEED_RTNL,
12702 },
2ec600d6
LCC		 12703 {
12704 .cmd = NL80211_CMD_SET_MPATH,
12705 .doit = nl80211_set_mpath,
12706 .policy = nl80211_policy,
5617c6cd 12707 .flags = GENL_UNS_ADMIN_PERM,
41265714 12708 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12709 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12710 },
12711 {
12712 .cmd = NL80211_CMD_NEW_MPATH,
12713 .doit = nl80211_new_mpath,
12714 .policy = nl80211_policy,
5617c6cd 12715 .flags = GENL_UNS_ADMIN_PERM,
41265714 12716 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12717 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12718 },
12719 {
12720 .cmd = NL80211_CMD_DEL_MPATH,
12721 .doit = nl80211_del_mpath,
12722 .policy = nl80211_policy,
5617c6cd 12723 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12724 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12725 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 12726 },
12727 {
12728 .cmd = NL80211_CMD_SET_BSS,
12729 .doit = nl80211_set_bss,
12730 .policy = nl80211_policy,
5617c6cd 12731 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12732 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12733 NL80211_FLAG_NEED_RTNL,
b2e1b302 12734 },
f130347c
LR		 12735 {
12736 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 12737 .doit = nl80211_get_reg_do,
12738 .dumpit = nl80211_get_reg_dump,
f130347c 12739 .policy = nl80211_policy,
5fe231e8 12740 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 12741 /* can be retrieved by unprivileged users */
12742 },
b6863036 12743#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 12744 {
12745 .cmd = NL80211_CMD_SET_REG,
12746 .doit = nl80211_set_reg,
12747 .policy = nl80211_policy,
12748 .flags = GENL_ADMIN_PERM,
5fe231e8 12749 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 12750 },
b6863036 12751#endif
b2e1b302
LR		 12752 {
12753 .cmd = NL80211_CMD_REQ_SET_REG,
12754 .doit = nl80211_req_set_reg,
12755 .policy = nl80211_policy,
93da9cc1 12756 .flags = GENL_ADMIN_PERM,
12757 },
1ea4ff3e
JB		 12758 {
12759 .cmd = NL80211_CMD_RELOAD_REGDB,
12760 .doit = nl80211_reload_regdb,
12761 .policy = nl80211_policy,
12762 .flags = GENL_ADMIN_PERM,
12763 },
93da9cc1 12764 {
24bdd9f4
JC		 12765 .cmd = NL80211_CMD_GET_MESH_CONFIG,
12766 .doit = nl80211_get_mesh_config,
93da9cc1 12767 .policy = nl80211_policy,
12768 /* can be retrieved by unprivileged users */
2b5f8b0b 12769 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12770 NL80211_FLAG_NEED_RTNL,
93da9cc1 12771 },
12772 {
24bdd9f4
JC		 12773 .cmd = NL80211_CMD_SET_MESH_CONFIG,
12774 .doit = nl80211_update_mesh_config,
93da9cc1 12775 .policy = nl80211_policy,
5617c6cd 12776 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c 12777 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12778 NL80211_FLAG_NEED_RTNL,
9aed3cc1 12779 },
2a519311
JB		 12780 {
12781 .cmd = NL80211_CMD_TRIGGER_SCAN,
12782 .doit = nl80211_trigger_scan,
12783 .policy = nl80211_policy,
5617c6cd 12784 .flags = GENL_UNS_ADMIN_PERM,
fd014284 12785 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12786 NL80211_FLAG_NEED_RTNL,
2a519311 12787 },
91d3ab46
VK		 12788 {
12789 .cmd = NL80211_CMD_ABORT_SCAN,
12790 .doit = nl80211_abort_scan,
12791 .policy = nl80211_policy,
5617c6cd 12792 .flags = GENL_UNS_ADMIN_PERM,
91d3ab46
VK		 12793 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12794 NL80211_FLAG_NEED_RTNL,
12795 },
2a519311
JB		 12796 {
12797 .cmd = NL80211_CMD_GET_SCAN,
12798 .policy = nl80211_policy,
12799 .dumpit = nl80211_dump_scan,
12800 },
807f8a8c
LC		 12801 {
12802 .cmd = NL80211_CMD_START_SCHED_SCAN,
12803 .doit = nl80211_start_sched_scan,
12804 .policy = nl80211_policy,
5617c6cd 12805 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 12806 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12807 NL80211_FLAG_NEED_RTNL,
12808 },
12809 {
12810 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
12811 .doit = nl80211_stop_sched_scan,
12812 .policy = nl80211_policy,
5617c6cd 12813 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 12814 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12815 NL80211_FLAG_NEED_RTNL,
12816 },
636a5d36
JM		 12817 {
12818 .cmd = NL80211_CMD_AUTHENTICATE,
12819 .doit = nl80211_authenticate,
12820 .policy = nl80211_policy,
5617c6cd 12821 .flags = GENL_UNS_ADMIN_PERM,
41265714 12822 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12823 NL80211_FLAG_NEED_RTNL |
12824 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 12825 },
12826 {
12827 .cmd = NL80211_CMD_ASSOCIATE,
12828 .doit = nl80211_associate,
12829 .policy = nl80211_policy,
5617c6cd 12830 .flags = GENL_UNS_ADMIN_PERM,
41265714 12831 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12832 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 12833 },
12834 {
12835 .cmd = NL80211_CMD_DEAUTHENTICATE,
12836 .doit = nl80211_deauthenticate,
12837 .policy = nl80211_policy,
5617c6cd 12838 .flags = GENL_UNS_ADMIN_PERM,
41265714 12839 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12840 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 12841 },
12842 {
12843 .cmd = NL80211_CMD_DISASSOCIATE,
12844 .doit = nl80211_disassociate,
12845 .policy = nl80211_policy,
5617c6cd 12846 .flags = GENL_UNS_ADMIN_PERM,
41265714 12847 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12848 NL80211_FLAG_NEED_RTNL,
636a5d36 12849 },
04a773ad
JB		 12850 {
12851 .cmd = NL80211_CMD_JOIN_IBSS,
12852 .doit = nl80211_join_ibss,
12853 .policy = nl80211_policy,
5617c6cd 12854 .flags = GENL_UNS_ADMIN_PERM,
41265714 12855 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12856 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 12857 },
12858 {
12859 .cmd = NL80211_CMD_LEAVE_IBSS,
12860 .doit = nl80211_leave_ibss,
12861 .policy = nl80211_policy,
5617c6cd 12862 .flags = GENL_UNS_ADMIN_PERM,
41265714 12863 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12864 NL80211_FLAG_NEED_RTNL,
04a773ad 12865 },
aff89a9b
JB		 12866#ifdef CONFIG_NL80211_TESTMODE
12867 {
12868 .cmd = NL80211_CMD_TESTMODE,
12869 .doit = nl80211_testmode_do,
71063f0e 12870 .dumpit = nl80211_testmode_dump,
aff89a9b 12871 .policy = nl80211_policy,
5617c6cd 12872 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12873 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12874 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 12875 },
12876#endif
b23aa676
SO		 12877 {
12878 .cmd = NL80211_CMD_CONNECT,
12879 .doit = nl80211_connect,
12880 .policy = nl80211_policy,
5617c6cd 12881 .flags = GENL_UNS_ADMIN_PERM,
41265714 12882 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12883 NL80211_FLAG_NEED_RTNL,
b23aa676 12884 },
088e8df8 12885 {
12886 .cmd = NL80211_CMD_UPDATE_CONNECT_PARAMS,
12887 .doit = nl80211_update_connect_params,
12888 .policy = nl80211_policy,
12889 .flags = GENL_ADMIN_PERM,
12890 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12891 NL80211_FLAG_NEED_RTNL,
12892 },
b23aa676
SO		 12893 {
12894 .cmd = NL80211_CMD_DISCONNECT,
12895 .doit = nl80211_disconnect,
12896 .policy = nl80211_policy,
5617c6cd 12897 .flags = GENL_UNS_ADMIN_PERM,
41265714 12898 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12899 NL80211_FLAG_NEED_RTNL,
b23aa676 12900 },
463d0183
JB		 12901 {
12902 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
12903 .doit = nl80211_wiphy_netns,
12904 .policy = nl80211_policy,
5617c6cd 12905 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12906 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12907 NL80211_FLAG_NEED_RTNL,
463d0183 12908 },
61fa713c
HS		 12909 {
12910 .cmd = NL80211_CMD_GET_SURVEY,
12911 .policy = nl80211_policy,
12912 .dumpit = nl80211_dump_survey,
12913 },
67fbb16b
SO		 12914 {
12915 .cmd = NL80211_CMD_SET_PMKSA,
12916 .doit = nl80211_setdel_pmksa,
12917 .policy = nl80211_policy,
5617c6cd 12918 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12919 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12920 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 12921 },
12922 {
12923 .cmd = NL80211_CMD_DEL_PMKSA,
12924 .doit = nl80211_setdel_pmksa,
12925 .policy = nl80211_policy,
5617c6cd 12926 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12927 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12928 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 12929 },
12930 {
12931 .cmd = NL80211_CMD_FLUSH_PMKSA,
12932 .doit = nl80211_flush_pmksa,
12933 .policy = nl80211_policy,
5617c6cd 12934 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12935 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12936 NL80211_FLAG_NEED_RTNL,
67fbb16b 12937 },
9588bbd5
JM		 12938 {
12939 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
12940 .doit = nl80211_remain_on_channel,
12941 .policy = nl80211_policy,
5617c6cd 12942 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12943 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12944 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 12945 },
12946 {
12947 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12948 .doit = nl80211_cancel_remain_on_channel,
12949 .policy = nl80211_policy,
5617c6cd 12950 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12951 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12952 NL80211_FLAG_NEED_RTNL,
9588bbd5 12953 },
13ae75b1
JM		 12954 {
12955 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
12956 .doit = nl80211_set_tx_bitrate_mask,
12957 .policy = nl80211_policy,
5617c6cd 12958 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12959 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12960 NL80211_FLAG_NEED_RTNL,
13ae75b1 12961 },
026331c4 12962 {
2e161f78
JB		 12963 .cmd = NL80211_CMD_REGISTER_FRAME,
12964 .doit = nl80211_register_mgmt,
026331c4 12965 .policy = nl80211_policy,
5617c6cd 12966 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12967 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 12968 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 12969 },
12970 {
2e161f78
JB		 12971 .cmd = NL80211_CMD_FRAME,
12972 .doit = nl80211_tx_mgmt,
026331c4 12973 .policy = nl80211_policy,
5617c6cd 12974 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12975 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 12976 NL80211_FLAG_NEED_RTNL,
12977 },
12978 {
12979 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
12980 .doit = nl80211_tx_mgmt_cancel_wait,
12981 .policy = nl80211_policy,
5617c6cd 12982 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12983 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12984 NL80211_FLAG_NEED_RTNL,
026331c4 12985 },
ffb9eb3d
KV		 12986 {
12987 .cmd = NL80211_CMD_SET_POWER_SAVE,
12988 .doit = nl80211_set_power_save,
12989 .policy = nl80211_policy,
5617c6cd 12990 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12991 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12992 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 12993 },
12994 {
12995 .cmd = NL80211_CMD_GET_POWER_SAVE,
12996 .doit = nl80211_get_power_save,
12997 .policy = nl80211_policy,
12998 /* can be retrieved by unprivileged users */
4c476991
JB		 12999 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13000 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 13001 },
d6dc1a38
JO		 13002 {
13003 .cmd = NL80211_CMD_SET_CQM,
13004 .doit = nl80211_set_cqm,
13005 .policy = nl80211_policy,
5617c6cd 13006 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 13007 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13008 NL80211_FLAG_NEED_RTNL,
d6dc1a38 13009 },
f444de05
JB		 13010 {
13011 .cmd = NL80211_CMD_SET_CHANNEL,
13012 .doit = nl80211_set_channel,
13013 .policy = nl80211_policy,
5617c6cd 13014 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 13015 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13016 NL80211_FLAG_NEED_RTNL,
f444de05 13017 },
e8347eba
BJ		 13018 {
13019 .cmd = NL80211_CMD_SET_WDS_PEER,
13020 .doit = nl80211_set_wds_peer,
13021 .policy = nl80211_policy,
5617c6cd 13022 .flags = GENL_UNS_ADMIN_PERM,
43b19952
JB		 13023 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13024 NL80211_FLAG_NEED_RTNL,
e8347eba 13025 },
29cbe68c
JB		 13026 {
13027 .cmd = NL80211_CMD_JOIN_MESH,
13028 .doit = nl80211_join_mesh,
13029 .policy = nl80211_policy,
5617c6cd 13030 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 13031 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13032 NL80211_FLAG_NEED_RTNL,
13033 },
13034 {
13035 .cmd = NL80211_CMD_LEAVE_MESH,
13036 .doit = nl80211_leave_mesh,
13037 .policy = nl80211_policy,
5617c6cd 13038 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 13039 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13040 NL80211_FLAG_NEED_RTNL,
13041 },
6e0bd6c3
RL		 13042 {
13043 .cmd = NL80211_CMD_JOIN_OCB,
13044 .doit = nl80211_join_ocb,
13045 .policy = nl80211_policy,
5617c6cd 13046 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 13047 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13048 NL80211_FLAG_NEED_RTNL,
13049 },
13050 {
13051 .cmd = NL80211_CMD_LEAVE_OCB,
13052 .doit = nl80211_leave_ocb,
13053 .policy = nl80211_policy,
5617c6cd 13054 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 13055 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13056 NL80211_FLAG_NEED_RTNL,
13057 },
dfb89c56 13058#ifdef CONFIG_PM
ff1b6e69
JB		 13059 {
13060 .cmd = NL80211_CMD_GET_WOWLAN,
13061 .doit = nl80211_get_wowlan,
13062 .policy = nl80211_policy,
13063 /* can be retrieved by unprivileged users */
13064 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13065 NL80211_FLAG_NEED_RTNL,
13066 },
13067 {
13068 .cmd = NL80211_CMD_SET_WOWLAN,
13069 .doit = nl80211_set_wowlan,
13070 .policy = nl80211_policy,
5617c6cd 13071 .flags = GENL_UNS_ADMIN_PERM,
ff1b6e69
JB		 13072 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13073 NL80211_FLAG_NEED_RTNL,
13074 },
dfb89c56 13075#endif
e5497d76
JB		 13076 {
13077 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
13078 .doit = nl80211_set_rekey_data,
13079 .policy = nl80211_policy,
5617c6cd 13080 .flags = GENL_UNS_ADMIN_PERM,
e5497d76 13081 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 13082 NL80211_FLAG_NEED_RTNL |
13083 NL80211_FLAG_CLEAR_SKB,
e5497d76 13084 },
109086ce
AN		 13085 {
13086 .cmd = NL80211_CMD_TDLS_MGMT,
13087 .doit = nl80211_tdls_mgmt,
13088 .policy = nl80211_policy,
5617c6cd 13089 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 13090 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13091 NL80211_FLAG_NEED_RTNL,
13092 },
13093 {
13094 .cmd = NL80211_CMD_TDLS_OPER,
13095 .doit = nl80211_tdls_oper,
13096 .policy = nl80211_policy,
5617c6cd 13097 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 13098 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13099 NL80211_FLAG_NEED_RTNL,
13100 },
28946da7
JB		 13101 {
13102 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
13103 .doit = nl80211_register_unexpected_frame,
13104 .policy = nl80211_policy,
5617c6cd 13105 .flags = GENL_UNS_ADMIN_PERM,
28946da7
JB		 13106 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13107 NL80211_FLAG_NEED_RTNL,
13108 },
7f6cf311
JB		 13109 {
13110 .cmd = NL80211_CMD_PROBE_CLIENT,
13111 .doit = nl80211_probe_client,
13112 .policy = nl80211_policy,
5617c6cd 13113 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 13114 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 13115 NL80211_FLAG_NEED_RTNL,
13116 },
5e760230
JB		 13117 {
13118 .cmd = NL80211_CMD_REGISTER_BEACONS,
13119 .doit = nl80211_register_beacons,
13120 .policy = nl80211_policy,
5617c6cd 13121 .flags = GENL_UNS_ADMIN_PERM,
5e760230
JB		 13122 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13123 NL80211_FLAG_NEED_RTNL,
13124 },
1d9d9213
SW		 13125 {
13126 .cmd = NL80211_CMD_SET_NOACK_MAP,
13127 .doit = nl80211_set_noack_map,
13128 .policy = nl80211_policy,
5617c6cd 13129 .flags = GENL_UNS_ADMIN_PERM,
1d9d9213
SW		 13130 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13131 NL80211_FLAG_NEED_RTNL,
13132 },
98104fde
JB		 13133 {
13134 .cmd = NL80211_CMD_START_P2P_DEVICE,
13135 .doit = nl80211_start_p2p_device,
13136 .policy = nl80211_policy,
5617c6cd 13137 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 13138 .internal_flags = NL80211_FLAG_NEED_WDEV |
13139 NL80211_FLAG_NEED_RTNL,
13140 },
13141 {
13142 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
13143 .doit = nl80211_stop_p2p_device,
13144 .policy = nl80211_policy,
5617c6cd 13145 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 13146 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13147 NL80211_FLAG_NEED_RTNL,
cb3b7d87
AB		 13148 },
13149 {
13150 .cmd = NL80211_CMD_START_NAN,
13151 .doit = nl80211_start_nan,
13152 .policy = nl80211_policy,
13153 .flags = GENL_ADMIN_PERM,
13154 .internal_flags = NL80211_FLAG_NEED_WDEV |
13155 NL80211_FLAG_NEED_RTNL,
13156 },
13157 {
13158 .cmd = NL80211_CMD_STOP_NAN,
13159 .doit = nl80211_stop_nan,
13160 .policy = nl80211_policy,
13161 .flags = GENL_ADMIN_PERM,
13162 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13163 NL80211_FLAG_NEED_RTNL,
a442b761
AB		 13164 },
13165 {
13166 .cmd = NL80211_CMD_ADD_NAN_FUNCTION,
13167 .doit = nl80211_nan_add_func,
13168 .policy = nl80211_policy,
13169 .flags = GENL_ADMIN_PERM,
13170 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13171 NL80211_FLAG_NEED_RTNL,
13172 },
13173 {
13174 .cmd = NL80211_CMD_DEL_NAN_FUNCTION,
13175 .doit = nl80211_nan_del_func,
13176 .policy = nl80211_policy,
13177 .flags = GENL_ADMIN_PERM,
13178 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13179 NL80211_FLAG_NEED_RTNL,
a5a9dcf2
AB		 13180 },
13181 {
13182 .cmd = NL80211_CMD_CHANGE_NAN_CONFIG,
13183 .doit = nl80211_nan_change_config,
13184 .policy = nl80211_policy,
13185 .flags = GENL_ADMIN_PERM,
13186 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13187 NL80211_FLAG_NEED_RTNL,
98104fde 13188 },
f4e583c8
AQ		 13189 {
13190 .cmd = NL80211_CMD_SET_MCAST_RATE,
13191 .doit = nl80211_set_mcast_rate,
77765eaf 13192 .policy = nl80211_policy,
5617c6cd 13193 .flags = GENL_UNS_ADMIN_PERM,
77765eaf
VT		 13194 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13195 NL80211_FLAG_NEED_RTNL,
13196 },
13197 {
13198 .cmd = NL80211_CMD_SET_MAC_ACL,
13199 .doit = nl80211_set_mac_acl,
f4e583c8 13200 .policy = nl80211_policy,
5617c6cd 13201 .flags = GENL_UNS_ADMIN_PERM,
f4e583c8
AQ		 13202 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13203 NL80211_FLAG_NEED_RTNL,
13204 },
04f39047
SW		 13205 {
13206 .cmd = NL80211_CMD_RADAR_DETECT,
13207 .doit = nl80211_start_radar_detection,
13208 .policy = nl80211_policy,
5617c6cd 13209 .flags = GENL_UNS_ADMIN_PERM,
04f39047
SW		 13210 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13211 NL80211_FLAG_NEED_RTNL,
13212 },
3713b4e3
JB		 13213 {
13214 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
13215 .doit = nl80211_get_protocol_features,
13216 .policy = nl80211_policy,
13217 },
355199e0
JM		 13218 {
13219 .cmd = NL80211_CMD_UPDATE_FT_IES,
13220 .doit = nl80211_update_ft_ies,
13221 .policy = nl80211_policy,
5617c6cd 13222 .flags = GENL_UNS_ADMIN_PERM,
355199e0
JM		 13223 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13224 NL80211_FLAG_NEED_RTNL,
13225 },
5de17984
AS		 13226 {
13227 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
13228 .doit = nl80211_crit_protocol_start,
13229 .policy = nl80211_policy,
5617c6cd 13230 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 13231 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13232 NL80211_FLAG_NEED_RTNL,
13233 },
13234 {
13235 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
13236 .doit = nl80211_crit_protocol_stop,
13237 .policy = nl80211_policy,
5617c6cd 13238 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 13239 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13240 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 13241 },
13242 {
13243 .cmd = NL80211_CMD_GET_COALESCE,
13244 .doit = nl80211_get_coalesce,
13245 .policy = nl80211_policy,
13246 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13247 NL80211_FLAG_NEED_RTNL,
13248 },
13249 {
13250 .cmd = NL80211_CMD_SET_COALESCE,
13251 .doit = nl80211_set_coalesce,
13252 .policy = nl80211_policy,
5617c6cd 13253 .flags = GENL_UNS_ADMIN_PERM,
be29b99a
AK		 13254 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13255 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 13256 },
13257 {
13258 .cmd = NL80211_CMD_CHANNEL_SWITCH,
13259 .doit = nl80211_channel_switch,
13260 .policy = nl80211_policy,
5617c6cd 13261 .flags = GENL_UNS_ADMIN_PERM,
16ef1fe2
SW		 13262 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13263 NL80211_FLAG_NEED_RTNL,
13264 },
ad7e718c
JB		 13265 {
13266 .cmd = NL80211_CMD_VENDOR,
13267 .doit = nl80211_vendor_cmd,
7bdbe400 13268 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c 13269 .policy = nl80211_policy,
5617c6cd 13270 .flags = GENL_UNS_ADMIN_PERM,
ad7e718c
JB		 13271 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13272 NL80211_FLAG_NEED_RTNL,
13273 },
fa9ffc74
KP		 13274 {
13275 .cmd = NL80211_CMD_SET_QOS_MAP,
13276 .doit = nl80211_set_qos_map,
13277 .policy = nl80211_policy,
5617c6cd 13278 .flags = GENL_UNS_ADMIN_PERM,
fa9ffc74
KP		 13279 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13280 NL80211_FLAG_NEED_RTNL,
13281 },
960d01ac
JB		 13282 {
13283 .cmd = NL80211_CMD_ADD_TX_TS,
13284 .doit = nl80211_add_tx_ts,
13285 .policy = nl80211_policy,
5617c6cd 13286 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 13287 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13288 NL80211_FLAG_NEED_RTNL,
13289 },
13290 {
13291 .cmd = NL80211_CMD_DEL_TX_TS,
13292 .doit = nl80211_del_tx_ts,
13293 .policy = nl80211_policy,
5617c6cd 13294 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 13295 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13296 NL80211_FLAG_NEED_RTNL,
13297 },
1057d35e
AN		 13298 {
13299 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
13300 .doit = nl80211_tdls_channel_switch,
13301 .policy = nl80211_policy,
5617c6cd 13302 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 13303 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13304 NL80211_FLAG_NEED_RTNL,
13305 },
13306 {
13307 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
13308 .doit = nl80211_tdls_cancel_channel_switch,
13309 .policy = nl80211_policy,
5617c6cd 13310 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 13311 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13312 NL80211_FLAG_NEED_RTNL,
13313 },
ce0ce13a
MB		 13314 {
13315 .cmd = NL80211_CMD_SET_MULTICAST_TO_UNICAST,
13316 .doit = nl80211_set_multicast_to_unicast,
13317 .policy = nl80211_policy,
13318 .flags = GENL_UNS_ADMIN_PERM,
13319 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13320 NL80211_FLAG_NEED_RTNL,
13321 },
3a00df57
AS		 13322 {
13323 .cmd = NL80211_CMD_SET_PMK,
13324 .doit = nl80211_set_pmk,
13325 .policy = nl80211_policy,
13326 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13327 NL80211_FLAG_NEED_RTNL,
13328 },
13329 {
13330 .cmd = NL80211_CMD_DEL_PMK,
13331 .doit = nl80211_del_pmk,
13332 .policy = nl80211_policy,
13333 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13334 NL80211_FLAG_NEED_RTNL,
13335 },
13336
55682965 13337};
9588bbd5 13338
56989f6d 13339static struct genl_family nl80211_fam __ro_after_init = {
489111e5
JB		 13340 .name = NL80211_GENL_NAME, /* have users key off the name instead */
13341 .hdrsize = 0, /* no private header */
13342 .version = 1, /* no particular meaning now */
13343 .maxattr = NL80211_ATTR_MAX,
13344 .netnsok = true,
13345 .pre_doit = nl80211_pre_doit,
13346 .post_doit = nl80211_post_doit,
13347 .module = THIS_MODULE,
13348 .ops = nl80211_ops,
13349 .n_ops = ARRAY_SIZE(nl80211_ops),
13350 .mcgrps = nl80211_mcgrps,
13351 .n_mcgrps = ARRAY_SIZE(nl80211_mcgrps),
13352};
13353
55682965
JB		 13354/* notification functions */
13355
3bb20556
JB		 13356void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
13357 enum nl80211_commands cmd)
55682965
JB		 13358{
13359 struct sk_buff *msg;
86e8cf98 13360 struct nl80211_dump_wiphy_state state = {};
55682965 13361
3bb20556
JB		 13362 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
13363 cmd != NL80211_CMD_DEL_WIPHY);
13364
fd2120ca 13365 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 13366 if (!msg)
13367 return;
13368
3bb20556 13369 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 13370 nlmsg_free(msg);
13371 return;
13372 }
13373
68eb5503 13374 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13375 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 13376}
13377
896ff063
DK		 13378void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
13379 struct wireless_dev *wdev,
13380 enum nl80211_commands cmd)
13381{
13382 struct sk_buff *msg;
13383
13384 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
13385 cmd != NL80211_CMD_DEL_INTERFACE);
13386
13387 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13388 if (!msg)
13389 return;
13390
13391 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
13392 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
13393 nlmsg_free(msg);
13394 return;
13395 }
13396
13397 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13398 NL80211_MCGRP_CONFIG, GFP_KERNEL);
13399}
13400
362a415d
JB		 13401static int nl80211_add_scan_req(struct sk_buff *msg,
13402 struct cfg80211_registered_device *rdev)
13403{
13404 struct cfg80211_scan_request *req = rdev->scan_req;
13405 struct nlattr *nest;
13406 int i;
13407
13408 if (WARN_ON(!req))
13409 return 0;
13410
13411 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
13412 if (!nest)
13413 goto nla_put_failure;
9360ffd1
DM		 13414 for (i = 0; i < req->n_ssids; i++) {
13415 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
13416 goto nla_put_failure;
13417 }
362a415d
JB		 13418 nla_nest_end(msg, nest);
13419
13420 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
13421 if (!nest)
13422 goto nla_put_failure;
9360ffd1
DM		 13423 for (i = 0; i < req->n_channels; i++) {
13424 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
13425 goto nla_put_failure;
13426 }
362a415d
JB		 13427 nla_nest_end(msg, nest);
13428
9360ffd1
DM		 13429 if (req->ie &&
13430 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
13431 goto nla_put_failure;
362a415d 13432
ae917c9f
JB		 13433 if (req->flags &&
13434 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
13435 goto nla_put_failure;
ed473771 13436
1d76250b
AS		 13437 if (req->info.scan_start_tsf &&
13438 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
13439 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
13440 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
13441 req->info.tsf_bssid)))
13442 goto nla_put_failure;
13443
362a415d
JB		 13444 return 0;
13445 nla_put_failure:
13446 return -ENOBUFS;
13447}
13448
505a2e88 13449static int nl80211_prep_scan_msg(struct sk_buff *msg,
a538e2d5 13450 struct cfg80211_registered_device *rdev,
fd014284 13451 struct wireless_dev *wdev,
15e47304 13452 u32 portid, u32 seq, int flags,
a538e2d5 13453 u32 cmd)
2a519311
JB		 13454{
13455 void *hdr;
13456
15e47304 13457 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 13458 if (!hdr)
13459 return -1;
13460
9360ffd1 13461 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 13462 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13463 wdev->netdev->ifindex)) ||
2dad624e
ND		 13464 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13465 NL80211_ATTR_PAD))
9360ffd1 13466 goto nla_put_failure;
2a519311 13467
362a415d
JB		 13468 /* ignore errors and send incomplete event anyway */
13469 nl80211_add_scan_req(msg, rdev);
2a519311 13470
053c095a
JB		 13471 genlmsg_end(msg, hdr);
13472 return 0;
2a519311
JB		 13473
13474 nla_put_failure:
13475 genlmsg_cancel(msg, hdr);
13476 return -EMSGSIZE;
13477}
13478
807f8a8c 13479static int
505a2e88 13480nl80211_prep_sched_scan_msg(struct sk_buff *msg,
96b08fd6 13481 struct cfg80211_sched_scan_request *req, u32 cmd)
807f8a8c
LC		 13482{
13483 void *hdr;
13484
96b08fd6 13485 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
807f8a8c
LC		 13486 if (!hdr)
13487 return -1;
13488
96b08fd6
AVS		 13489 if (nla_put_u32(msg, NL80211_ATTR_WIPHY,
13490 wiphy_to_rdev(req->wiphy)->wiphy_idx) ||
13491 nla_put_u32(msg, NL80211_ATTR_IFINDEX, req->dev->ifindex) ||
13492 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, req->reqid,
13493 NL80211_ATTR_PAD))
9360ffd1 13494 goto nla_put_failure;
807f8a8c 13495
053c095a
JB		 13496 genlmsg_end(msg, hdr);
13497 return 0;
807f8a8c
LC		 13498
13499 nla_put_failure:
13500 genlmsg_cancel(msg, hdr);
13501 return -EMSGSIZE;
13502}
13503
a538e2d5 13504void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 13505 struct wireless_dev *wdev)
a538e2d5
JB		 13506{
13507 struct sk_buff *msg;
13508
58050fce 13509 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 13510 if (!msg)
13511 return;
13512
505a2e88 13513 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 13514 NL80211_CMD_TRIGGER_SCAN) < 0) {
13515 nlmsg_free(msg);
13516 return;
13517 }
13518
68eb5503 13519 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13520 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 13521}
13522
f9d15d16
JB		 13523struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
13524 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 13525{
13526 struct sk_buff *msg;
13527
fd2120ca 13528 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 13529 if (!msg)
f9d15d16 13530 return NULL;
2a519311 13531
505a2e88 13532 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 13533 aborted ? NL80211_CMD_SCAN_ABORTED :
13534 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 13535 nlmsg_free(msg);
f9d15d16 13536 return NULL;
2a519311
JB		 13537 }
13538
f9d15d16 13539 return msg;
2a519311
JB		 13540}
13541
505a2e88
AVS		 13542/* send message created by nl80211_build_scan_msg() */
13543void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev,
13544 struct sk_buff *msg)
807f8a8c 13545{
807f8a8c
LC		 13546 if (!msg)
13547 return;
13548
68eb5503 13549 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13550 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 13551}
13552
96b08fd6 13553void nl80211_send_sched_scan(struct cfg80211_sched_scan_request *req, u32 cmd)
807f8a8c
LC		 13554{
13555 struct sk_buff *msg;
13556
58050fce 13557 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 13558 if (!msg)
13559 return;
13560
96b08fd6 13561 if (nl80211_prep_sched_scan_msg(msg, req, cmd) < 0) {
807f8a8c
LC		 13562 nlmsg_free(msg);
13563 return;
13564 }
13565
96b08fd6 13566 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(req->wiphy), msg, 0,
2a94fe48 13567 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 13568}
13569
b0d7aa59
JD		 13570static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
13571 struct regulatory_request *request)
73d54c9e 13572{
73d54c9e 13573 /* Userspace can always count this one always being set */
9360ffd1
DM		 13574 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
13575 goto nla_put_failure;
13576
13577 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
13578 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13579 NL80211_REGDOM_TYPE_WORLD))
13580 goto nla_put_failure;
13581 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
13582 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13583 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
13584 goto nla_put_failure;
13585 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
13586 request->intersect) {
13587 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13588 NL80211_REGDOM_TYPE_INTERSECTION))
13589 goto nla_put_failure;
13590 } else {
13591 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13592 NL80211_REGDOM_TYPE_COUNTRY) ||
13593 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
13594 request->alpha2))
13595 goto nla_put_failure;
13596 }
13597
ad30ca2c
AN		 13598 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
13599 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
13600
13601 if (wiphy &&
13602 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
13603 goto nla_put_failure;
1bdd716c
AN		 13604
13605 if (wiphy &&
13606 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
13607 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
13608 goto nla_put_failure;
ad30ca2c 13609 }
73d54c9e 13610
b0d7aa59
JD		 13611 return true;
13612
13613nla_put_failure:
13614 return false;
13615}
13616
13617/*
13618 * This can happen on global regulatory changes or device specific settings
13619 * based on custom regulatory domains.
13620 */
13621void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
13622 struct regulatory_request *request)
13623{
13624 struct sk_buff *msg;
13625 void *hdr;
13626
13627 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13628 if (!msg)
13629 return;
13630
13631 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
13632 if (!hdr) {
13633 nlmsg_free(msg);
13634 return;
13635 }
13636
13637 if (nl80211_reg_change_event_fill(msg, request) == false)
13638 goto nla_put_failure;
13639
3b7b72ee 13640 genlmsg_end(msg, hdr);
73d54c9e 13641
bc43b28c 13642 rcu_read_lock();
68eb5503 13643 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 13644 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 13645 rcu_read_unlock();
73d54c9e
LR		 13646
13647 return;
13648
13649nla_put_failure:
13650 genlmsg_cancel(msg, hdr);
13651 nlmsg_free(msg);
13652}
13653
6039f6d2
JM		 13654static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
13655 struct net_device *netdev,
13656 const u8 *buf, size_t len,
b0b6aa2c
EP		 13657 enum nl80211_commands cmd, gfp_t gfp,
13658 int uapsd_queues)
6039f6d2
JM		 13659{
13660 struct sk_buff *msg;
13661 void *hdr;
13662
4ef8c1c9 13663 msg = nlmsg_new(100 + len, gfp);
6039f6d2
JM		 13664 if (!msg)
13665 return;
13666
13667 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13668 if (!hdr) {
13669 nlmsg_free(msg);
13670 return;
13671 }
13672
9360ffd1
DM		 13673 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13674 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13675 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
13676 goto nla_put_failure;
6039f6d2 13677
b0b6aa2c
EP		 13678 if (uapsd_queues >= 0) {
13679 struct nlattr *nla_wmm =
13680 nla_nest_start(msg, NL80211_ATTR_STA_WME);
13681 if (!nla_wmm)
13682 goto nla_put_failure;
13683
13684 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
13685 uapsd_queues))
13686 goto nla_put_failure;
13687
13688 nla_nest_end(msg, nla_wmm);
13689 }
13690
3b7b72ee 13691 genlmsg_end(msg, hdr);
6039f6d2 13692
68eb5503 13693 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13694 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 13695 return;
13696
13697 nla_put_failure:
13698 genlmsg_cancel(msg, hdr);
13699 nlmsg_free(msg);
13700}
13701
13702void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13703 struct net_device *netdev, const u8 *buf,
13704 size_t len, gfp_t gfp)
6039f6d2
JM		 13705{
13706 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13707 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 13708}
13709
13710void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
13711 struct net_device *netdev, const u8 *buf,
b0b6aa2c 13712 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 13713{
e6d6e342 13714 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13715 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 13716}
13717
53b46b84 13718void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13719 struct net_device *netdev, const u8 *buf,
13720 size_t len, gfp_t gfp)
6039f6d2
JM		 13721{
13722 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13723 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 13724}
13725
53b46b84
JM		 13726void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
13727 struct net_device *netdev, const u8 *buf,
e6d6e342 13728 size_t len, gfp_t gfp)
6039f6d2
JM		 13729{
13730 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13731 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 13732}
13733
6ff57cf8
JB		 13734void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
13735 size_t len)
cf4e594e 13736{
947add36
JB		 13737 struct wireless_dev *wdev = dev->ieee80211_ptr;
13738 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13739 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 13740 const struct ieee80211_mgmt *mgmt = (void *)buf;
13741 u32 cmd;
947add36 13742
6ff57cf8
JB		 13743 if (WARN_ON(len < 2))
13744 return;
cf4e594e 13745
6ff57cf8
JB		 13746 if (ieee80211_is_deauth(mgmt->frame_control))
13747 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
13748 else
13749 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 13750
6ff57cf8 13751 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 13752 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 13753}
6ff57cf8 13754EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 13755
1b06bb40
LR		 13756static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
13757 struct net_device *netdev, int cmd,
e6d6e342 13758 const u8 *addr, gfp_t gfp)
1965c853
JM		 13759{
13760 struct sk_buff *msg;
13761 void *hdr;
13762
e6d6e342 13763 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 13764 if (!msg)
13765 return;
13766
13767 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13768 if (!hdr) {
13769 nlmsg_free(msg);
13770 return;
13771 }
13772
9360ffd1
DM		 13773 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13774 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13775 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13776 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13777 goto nla_put_failure;
1965c853 13778
3b7b72ee 13779 genlmsg_end(msg, hdr);
1965c853 13780
68eb5503 13781 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13782 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 13783 return;
13784
13785 nla_put_failure:
13786 genlmsg_cancel(msg, hdr);
13787 nlmsg_free(msg);
13788}
13789
13790void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13791 struct net_device *netdev, const u8 *addr,
13792 gfp_t gfp)
1965c853
JM		 13793{
13794 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 13795 addr, gfp);
1965c853
JM		 13796}
13797
13798void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13799 struct net_device *netdev, const u8 *addr,
13800 gfp_t gfp)
1965c853 13801{
e6d6e342
JB		 13802 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
13803 addr, gfp);
1965c853
JM		 13804}
13805
b23aa676 13806void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5349a0f7
VK		 13807 struct net_device *netdev,
13808 struct cfg80211_connect_resp_params *cr,
3093ebbe 13809 gfp_t gfp)
b23aa676
SO		 13810{
13811 struct sk_buff *msg;
13812 void *hdr;
13813
a3caf744
VK		 13814 msg = nlmsg_new(100 + cr->req_ie_len + cr->resp_ie_len +
13815 cr->fils_kek_len + cr->pmk_len +
13816 (cr->pmkid ? WLAN_PMKID_LEN : 0), gfp);
b23aa676
SO		 13817 if (!msg)
13818 return;
13819
13820 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
13821 if (!hdr) {
13822 nlmsg_free(msg);
13823 return;
13824 }
13825
9360ffd1
DM		 13826 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13827 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
5349a0f7
VK		 13828 (cr->bssid &&
13829 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, cr->bssid)) ||
bf1ecd21 13830 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
5349a0f7
VK		 13831 cr->status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
13832 cr->status) ||
13833 (cr->status < 0 &&
3093ebbe 13834 (nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
5349a0f7
VK		 13835 nla_put_u32(msg, NL80211_ATTR_TIMEOUT_REASON,
13836 cr->timeout_reason))) ||
13837 (cr->req_ie &&
13838 nla_put(msg, NL80211_ATTR_REQ_IE, cr->req_ie_len, cr->req_ie)) ||
13839 (cr->resp_ie &&
13840 nla_put(msg, NL80211_ATTR_RESP_IE, cr->resp_ie_len,
a3caf744
VK		 13841 cr->resp_ie)) ||
13842 (cr->update_erp_next_seq_num &&
13843 nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM,
13844 cr->fils_erp_next_seq_num)) ||
13845 (cr->status == WLAN_STATUS_SUCCESS &&
13846 ((cr->fils_kek &&
13847 nla_put(msg, NL80211_ATTR_FILS_KEK, cr->fils_kek_len,
13848 cr->fils_kek)) ||
13849 (cr->pmk &&
13850 nla_put(msg, NL80211_ATTR_PMK, cr->pmk_len, cr->pmk)) ||
13851 (cr->pmkid &&
13852 nla_put(msg, NL80211_ATTR_PMKID, WLAN_PMKID_LEN, cr->pmkid)))))
9360ffd1 13853 goto nla_put_failure;
b23aa676 13854
3b7b72ee 13855 genlmsg_end(msg, hdr);
b23aa676 13856
68eb5503 13857 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13858 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 13859 return;
13860
13861 nla_put_failure:
13862 genlmsg_cancel(msg, hdr);
13863 nlmsg_free(msg);
b23aa676
SO		 13864}
13865
13866void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
29ce6ecb
AS		 13867 struct net_device *netdev,
13868 struct cfg80211_roam_info *info, gfp_t gfp)
b23aa676
SO		 13869{
13870 struct sk_buff *msg;
13871 void *hdr;
29ce6ecb 13872 const u8 *bssid = info->bss ? info->bss->bssid : info->bssid;
b23aa676 13873
29ce6ecb 13874 msg = nlmsg_new(100 + info->req_ie_len + info->resp_ie_len, gfp);
b23aa676
SO		 13875 if (!msg)
13876 return;
13877
13878 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
13879 if (!hdr) {
13880 nlmsg_free(msg);
13881 return;
13882 }
13883
9360ffd1
DM		 13884 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13885 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13886 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
29ce6ecb
AS		 13887 (info->req_ie &&
13888 nla_put(msg, NL80211_ATTR_REQ_IE, info->req_ie_len,
13889 info->req_ie)) ||
13890 (info->resp_ie &&
13891 nla_put(msg, NL80211_ATTR_RESP_IE, info->resp_ie_len,
503c1fb9 13892 info->resp_ie)))
9360ffd1 13893 goto nla_put_failure;
b23aa676 13894
3b7b72ee 13895 genlmsg_end(msg, hdr);
b23aa676 13896
68eb5503 13897 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13898 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 13899 return;
13900
503c1fb9
AS		 13901 nla_put_failure:
13902 genlmsg_cancel(msg, hdr);
13903 nlmsg_free(msg);
13904}
13905
13906void nl80211_send_port_authorized(struct cfg80211_registered_device *rdev,
13907 struct net_device *netdev, const u8 *bssid)
13908{
13909 struct sk_buff *msg;
13910 void *hdr;
13911
13912 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13913 if (!msg)
13914 return;
13915
13916 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PORT_AUTHORIZED);
13917 if (!hdr) {
13918 nlmsg_free(msg);
13919 return;
13920 }
13921
13922 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13923 goto nla_put_failure;
13924
13925 genlmsg_end(msg, hdr);
13926
13927 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13928 NL80211_MCGRP_MLME, GFP_KERNEL);
13929 return;
13930
b23aa676
SO		 13931 nla_put_failure:
13932 genlmsg_cancel(msg, hdr);
13933 nlmsg_free(msg);
b23aa676
SO		 13934}
13935
13936void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
13937 struct net_device *netdev, u16 reason,
667503dd 13938 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 13939{
13940 struct sk_buff *msg;
13941 void *hdr;
13942
4ef8c1c9 13943 msg = nlmsg_new(100 + ie_len, GFP_KERNEL);
b23aa676
SO		 13944 if (!msg)
13945 return;
13946
13947 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
13948 if (!hdr) {
13949 nlmsg_free(msg);
13950 return;
13951 }
13952
9360ffd1
DM		 13953 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13954 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13955 (from_ap && reason &&
13956 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
13957 (from_ap &&
13958 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
13959 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
13960 goto nla_put_failure;
b23aa676 13961
3b7b72ee 13962 genlmsg_end(msg, hdr);
b23aa676 13963
68eb5503 13964 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13965 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 13966 return;
13967
13968 nla_put_failure:
13969 genlmsg_cancel(msg, hdr);
13970 nlmsg_free(msg);
b23aa676
SO		 13971}
13972
04a773ad
JB		 13973void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
13974 struct net_device *netdev, const u8 *bssid,
13975 gfp_t gfp)
13976{
13977 struct sk_buff *msg;
13978 void *hdr;
13979
fd2120ca 13980 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 13981 if (!msg)
13982 return;
13983
13984 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
13985 if (!hdr) {
13986 nlmsg_free(msg);
13987 return;
13988 }
13989
9360ffd1
DM		 13990 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13991 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13992 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13993 goto nla_put_failure;
04a773ad 13994
3b7b72ee 13995 genlmsg_end(msg, hdr);
04a773ad 13996
68eb5503 13997 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13998 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 13999 return;
14000
14001 nla_put_failure:
14002 genlmsg_cancel(msg, hdr);
14003 nlmsg_free(msg);
14004}
14005
947add36
JB		 14006void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
14007 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 14008{
947add36 14009 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14010 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 14011 struct sk_buff *msg;
14012 void *hdr;
14013
947add36
JB		 14014 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
14015 return;
14016
14017 trace_cfg80211_notify_new_peer_candidate(dev, addr);
14018
4ef8c1c9 14019 msg = nlmsg_new(100 + ie_len, gfp);
c93b5e71
JC		 14020 if (!msg)
14021 return;
14022
14023 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
14024 if (!hdr) {
14025 nlmsg_free(msg);
14026 return;
14027 }
14028
9360ffd1 14029 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 14030 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14031 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 14032 (ie_len && ie &&
14033 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
14034 goto nla_put_failure;
c93b5e71 14035
3b7b72ee 14036 genlmsg_end(msg, hdr);
c93b5e71 14037
68eb5503 14038 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14039 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 14040 return;
14041
14042 nla_put_failure:
14043 genlmsg_cancel(msg, hdr);
14044 nlmsg_free(msg);
14045}
947add36 14046EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 14047
a3b8b056
JM		 14048void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
14049 struct net_device *netdev, const u8 *addr,
14050 enum nl80211_key_type key_type, int key_id,
e6d6e342 14051 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 14052{
14053 struct sk_buff *msg;
14054 void *hdr;
14055
e6d6e342 14056 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 14057 if (!msg)
14058 return;
14059
14060 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
14061 if (!hdr) {
14062 nlmsg_free(msg);
14063 return;
14064 }
14065
9360ffd1
DM		 14066 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14067 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14068 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
14069 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
14070 (key_id != -1 &&
14071 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
14072 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
14073 goto nla_put_failure;
a3b8b056 14074
3b7b72ee 14075 genlmsg_end(msg, hdr);
a3b8b056 14076
68eb5503 14077 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14078 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 14079 return;
14080
14081 nla_put_failure:
14082 genlmsg_cancel(msg, hdr);
14083 nlmsg_free(msg);
14084}
14085
6bad8766
LR		 14086void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
14087 struct ieee80211_channel *channel_before,
14088 struct ieee80211_channel *channel_after)
14089{
14090 struct sk_buff *msg;
14091 void *hdr;
14092 struct nlattr *nl_freq;
14093
fd2120ca 14094 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 14095 if (!msg)
14096 return;
14097
14098 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
14099 if (!hdr) {
14100 nlmsg_free(msg);
14101 return;
14102 }
14103
14104 /*
14105 * Since we are applying the beacon hint to a wiphy we know its
14106 * wiphy_idx is valid
14107 */
9360ffd1
DM		 14108 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
14109 goto nla_put_failure;
6bad8766
LR		 14110
14111 /* Before */
14112 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
14113 if (!nl_freq)
14114 goto nla_put_failure;
cdc89b97 14115 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 14116 goto nla_put_failure;
14117 nla_nest_end(msg, nl_freq);
14118
14119 /* After */
14120 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
14121 if (!nl_freq)
14122 goto nla_put_failure;
cdc89b97 14123 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 14124 goto nla_put_failure;
14125 nla_nest_end(msg, nl_freq);
14126
3b7b72ee 14127 genlmsg_end(msg, hdr);
6bad8766 14128
463d0183 14129 rcu_read_lock();
68eb5503 14130 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 14131 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 14132 rcu_read_unlock();
6bad8766
LR		 14133
14134 return;
14135
14136nla_put_failure:
14137 genlmsg_cancel(msg, hdr);
14138 nlmsg_free(msg);
14139}
14140
9588bbd5
JM		 14141static void nl80211_send_remain_on_chan_event(
14142 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 14143 struct wireless_dev *wdev, u64 cookie,
9588bbd5 14144 struct ieee80211_channel *chan,
9588bbd5
JM		 14145 unsigned int duration, gfp_t gfp)
14146{
14147 struct sk_buff *msg;
14148 void *hdr;
14149
14150 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14151 if (!msg)
14152 return;
14153
14154 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14155 if (!hdr) {
14156 nlmsg_free(msg);
14157 return;
14158 }
14159
9360ffd1 14160 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 14161 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14162 wdev->netdev->ifindex)) ||
2dad624e
ND		 14163 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14164 NL80211_ATTR_PAD) ||
9360ffd1 14165 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 14166 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
14167 NL80211_CHAN_NO_HT) ||
2dad624e
ND		 14168 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14169 NL80211_ATTR_PAD))
9360ffd1 14170 goto nla_put_failure;
9588bbd5 14171
9360ffd1
DM		 14172 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
14173 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
14174 goto nla_put_failure;
9588bbd5 14175
3b7b72ee 14176 genlmsg_end(msg, hdr);
9588bbd5 14177
68eb5503 14178 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14179 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 14180 return;
14181
14182 nla_put_failure:
14183 genlmsg_cancel(msg, hdr);
14184 nlmsg_free(msg);
14185}
14186
947add36
JB		 14187void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
14188 struct ieee80211_channel *chan,
14189 unsigned int duration, gfp_t gfp)
9588bbd5 14190{
947add36 14191 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14192 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14193
14194 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 14195 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 14196 rdev, wdev, cookie, chan,
42d97a59 14197 duration, gfp);
9588bbd5 14198}
947add36 14199EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 14200
947add36
JB		 14201void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
14202 struct ieee80211_channel *chan,
14203 gfp_t gfp)
9588bbd5 14204{
947add36 14205 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14206 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14207
14208 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 14209 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 14210 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 14211}
947add36 14212EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 14213
947add36
JB		 14214void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
14215 struct station_info *sinfo, gfp_t gfp)
98b62183 14216{
947add36 14217 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 14218 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 14219 struct sk_buff *msg;
14220
947add36
JB		 14221 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
14222
58050fce 14223 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 14224 if (!msg)
14225 return;
14226
cf5ead82 14227 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 14228 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 14229 nlmsg_free(msg);
14230 return;
14231 }
14232
68eb5503 14233 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14234 NL80211_MCGRP_MLME, gfp);
98b62183 14235}
947add36 14236EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 14237
cf5ead82
JB		 14238void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
14239 struct station_info *sinfo, gfp_t gfp)
ec15e68b 14240{
947add36 14241 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 14242 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 14243 struct sk_buff *msg;
cf5ead82
JB		 14244 struct station_info empty_sinfo = {};
14245
14246 if (!sinfo)
14247 sinfo = &empty_sinfo;
ec15e68b 14248
947add36
JB		 14249 trace_cfg80211_del_sta(dev, mac_addr);
14250
58050fce 14251 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 14252 if (!msg)
14253 return;
14254
cf5ead82 14255 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 14256 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 14257 nlmsg_free(msg);
14258 return;
14259 }
14260
68eb5503 14261 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14262 NL80211_MCGRP_MLME, gfp);
ec15e68b 14263}
cf5ead82 14264EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 14265
947add36
JB		 14266void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
14267 enum nl80211_connect_failed_reason reason,
14268 gfp_t gfp)
ed44a951 14269{
947add36 14270 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 14271 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 14272 struct sk_buff *msg;
14273 void *hdr;
14274
14275 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
14276 if (!msg)
14277 return;
14278
14279 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
14280 if (!hdr) {
14281 nlmsg_free(msg);
14282 return;
14283 }
14284
14285 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14286 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
14287 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
14288 goto nla_put_failure;
14289
14290 genlmsg_end(msg, hdr);
14291
68eb5503 14292 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14293 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 14294 return;
14295
14296 nla_put_failure:
14297 genlmsg_cancel(msg, hdr);
14298 nlmsg_free(msg);
14299}
947add36 14300EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 14301
b92ab5d8
JB		 14302static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
14303 const u8 *addr, gfp_t gfp)
28946da7
JB		 14304{
14305 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14306 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 14307 struct sk_buff *msg;
14308 void *hdr;
6aa7de05 14309 u32 nlportid = READ_ONCE(wdev->ap_unexpected_nlportid);
28946da7 14310
15e47304 14311 if (!nlportid)
28946da7
JB		 14312 return false;
14313
14314 msg = nlmsg_new(100, gfp);
14315 if (!msg)
14316 return true;
14317
b92ab5d8 14318 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 14319 if (!hdr) {
14320 nlmsg_free(msg);
14321 return true;
14322 }
14323
9360ffd1
DM		 14324 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14325 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14326 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
14327 goto nla_put_failure;
28946da7 14328
9c90a9f6 14329 genlmsg_end(msg, hdr);
15e47304 14330 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 14331 return true;
14332
14333 nla_put_failure:
14334 genlmsg_cancel(msg, hdr);
14335 nlmsg_free(msg);
14336 return true;
14337}
14338
947add36
JB		 14339bool cfg80211_rx_spurious_frame(struct net_device *dev,
14340 const u8 *addr, gfp_t gfp)
b92ab5d8 14341{
947add36
JB		 14342 struct wireless_dev *wdev = dev->ieee80211_ptr;
14343 bool ret;
14344
14345 trace_cfg80211_rx_spurious_frame(dev, addr);
14346
14347 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
14348 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
14349 trace_cfg80211_return_bool(false);
14350 return false;
14351 }
14352 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
14353 addr, gfp);
14354 trace_cfg80211_return_bool(ret);
14355 return ret;
b92ab5d8 14356}
947add36 14357EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 14358
947add36
JB		 14359bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
14360 const u8 *addr, gfp_t gfp)
b92ab5d8 14361{
947add36
JB		 14362 struct wireless_dev *wdev = dev->ieee80211_ptr;
14363 bool ret;
14364
14365 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
14366
14367 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
14368 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
14369 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
14370 trace_cfg80211_return_bool(false);
14371 return false;
14372 }
14373 ret = __nl80211_unexpected_frame(dev,
14374 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
14375 addr, gfp);
14376 trace_cfg80211_return_bool(ret);
14377 return ret;
b92ab5d8 14378}
947add36 14379EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 14380
2e161f78 14381int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 14382 struct wireless_dev *wdev, u32 nlportid,
804483e9 14383 int freq, int sig_dbm,
19504cf5 14384 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 14385{
71bbc994 14386 struct net_device *netdev = wdev->netdev;
026331c4
JM		 14387 struct sk_buff *msg;
14388 void *hdr;
026331c4 14389
4ef8c1c9 14390 msg = nlmsg_new(100 + len, gfp);
026331c4
JM		 14391 if (!msg)
14392 return -ENOMEM;
14393
2e161f78 14394 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 14395 if (!hdr) {
14396 nlmsg_free(msg);
14397 return -ENOMEM;
14398 }
14399
9360ffd1 14400 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 14401 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14402 netdev->ifindex)) ||
2dad624e
ND		 14403 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14404 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14405 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
14406 (sig_dbm &&
14407 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 14408 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
14409 (flags &&
14410 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 14411 goto nla_put_failure;
026331c4 14412
3b7b72ee 14413 genlmsg_end(msg, hdr);
026331c4 14414
15e47304 14415 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 14416
14417 nla_put_failure:
14418 genlmsg_cancel(msg, hdr);
14419 nlmsg_free(msg);
14420 return -ENOBUFS;
14421}
14422
947add36
JB		 14423void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
14424 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 14425{
947add36 14426 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14427 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 14428 struct net_device *netdev = wdev->netdev;
026331c4
JM		 14429 struct sk_buff *msg;
14430 void *hdr;
14431
947add36
JB		 14432 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
14433
4ef8c1c9 14434 msg = nlmsg_new(100 + len, gfp);
026331c4
JM		 14435 if (!msg)
14436 return;
14437
2e161f78 14438 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 14439 if (!hdr) {
14440 nlmsg_free(msg);
14441 return;
14442 }
14443
9360ffd1 14444 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 14445 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14446 netdev->ifindex)) ||
2dad624e
ND		 14447 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14448 NL80211_ATTR_PAD) ||
9360ffd1 14449 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
2dad624e
ND		 14450 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14451 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14452 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
14453 goto nla_put_failure;
026331c4 14454
3b7b72ee 14455 genlmsg_end(msg, hdr);
026331c4 14456
68eb5503 14457 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14458 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 14459 return;
14460
14461 nla_put_failure:
14462 genlmsg_cancel(msg, hdr);
14463 nlmsg_free(msg);
14464}
947add36 14465EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 14466
5b97f49d
JB		 14467static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
14468 const char *mac, gfp_t gfp)
d6dc1a38 14469{
947add36 14470 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 14471 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14472 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14473 void **cb;
947add36 14474
d6dc1a38 14475 if (!msg)
5b97f49d 14476 return NULL;
d6dc1a38 14477
5b97f49d
JB		 14478 cb = (void **)msg->cb;
14479
14480 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
14481 if (!cb[0]) {
d6dc1a38 14482 nlmsg_free(msg);
5b97f49d 14483 return NULL;
d6dc1a38
JO		 14484 }
14485
9360ffd1 14486 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 14487 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 14488 goto nla_put_failure;
d6dc1a38 14489
5b97f49d 14490 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 14491 goto nla_put_failure;
14492
5b97f49d
JB		 14493 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
14494 if (!cb[1])
9360ffd1 14495 goto nla_put_failure;
d6dc1a38 14496
5b97f49d 14497 cb[2] = rdev;
d6dc1a38 14498
5b97f49d
JB		 14499 return msg;
14500 nla_put_failure:
14501 nlmsg_free(msg);
14502 return NULL;
14503}
14504
14505static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
14506{
14507 void **cb = (void **)msg->cb;
14508 struct cfg80211_registered_device *rdev = cb[2];
14509
14510 nla_nest_end(msg, cb[1]);
14511 genlmsg_end(msg, cb[0]);
14512
14513 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 14514
68eb5503 14515 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14516 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 14517}
14518
14519void cfg80211_cqm_rssi_notify(struct net_device *dev,
14520 enum nl80211_cqm_rssi_threshold_event rssi_event,
bee427b8 14521 s32 rssi_level, gfp_t gfp)
5b97f49d
JB		 14522{
14523 struct sk_buff *msg;
4a4b8169
AZ		 14524 struct wireless_dev *wdev = dev->ieee80211_ptr;
14525 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
5b97f49d 14526
bee427b8 14527 trace_cfg80211_cqm_rssi_notify(dev, rssi_event, rssi_level);
5b97f49d 14528
98f03342
JB		 14529 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
14530 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
14531 return;
14532
4a4b8169
AZ		 14533 if (wdev->cqm_config) {
14534 wdev->cqm_config->last_rssi_event_value = rssi_level;
14535
14536 cfg80211_cqm_rssi_update(rdev, dev);
14537
14538 if (rssi_level == 0)
14539 rssi_level = wdev->cqm_config->last_rssi_event_value;
14540 }
14541
5b97f49d
JB		 14542 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14543 if (!msg)
14544 return;
14545
14546 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
14547 rssi_event))
14548 goto nla_put_failure;
14549
bee427b8
AZ		 14550 if (rssi_level && nla_put_s32(msg, NL80211_ATTR_CQM_RSSI_LEVEL,
14551 rssi_level))
14552 goto nla_put_failure;
14553
5b97f49d
JB		 14554 cfg80211_send_cqm(msg, gfp);
14555
d6dc1a38
JO		 14556 return;
14557
14558 nla_put_failure:
d6dc1a38
JO		 14559 nlmsg_free(msg);
14560}
947add36 14561EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 14562
5b97f49d
JB		 14563void cfg80211_cqm_txe_notify(struct net_device *dev,
14564 const u8 *peer, u32 num_packets,
14565 u32 rate, u32 intvl, gfp_t gfp)
14566{
14567 struct sk_buff *msg;
14568
14569 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14570 if (!msg)
14571 return;
14572
14573 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
14574 goto nla_put_failure;
14575
14576 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
14577 goto nla_put_failure;
14578
14579 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
14580 goto nla_put_failure;
14581
14582 cfg80211_send_cqm(msg, gfp);
14583 return;
14584
14585 nla_put_failure:
14586 nlmsg_free(msg);
14587}
14588EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
14589
14590void cfg80211_cqm_pktloss_notify(struct net_device *dev,
14591 const u8 *peer, u32 num_packets, gfp_t gfp)
14592{
14593 struct sk_buff *msg;
14594
14595 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
14596
14597 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14598 if (!msg)
14599 return;
14600
14601 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
14602 goto nla_put_failure;
14603
14604 cfg80211_send_cqm(msg, gfp);
14605 return;
14606
14607 nla_put_failure:
14608 nlmsg_free(msg);
14609}
14610EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
14611
98f03342
JB		 14612void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
14613{
14614 struct sk_buff *msg;
14615
14616 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14617 if (!msg)
14618 return;
14619
14620 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
14621 goto nla_put_failure;
14622
14623 cfg80211_send_cqm(msg, gfp);
14624 return;
14625
14626 nla_put_failure:
14627 nlmsg_free(msg);
14628}
14629EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
14630
947add36
JB		 14631static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
14632 struct net_device *netdev, const u8 *bssid,
14633 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 14634{
14635 struct sk_buff *msg;
14636 struct nlattr *rekey_attr;
14637 void *hdr;
14638
58050fce 14639 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 14640 if (!msg)
14641 return;
14642
14643 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
14644 if (!hdr) {
14645 nlmsg_free(msg);
14646 return;
14647 }
14648
9360ffd1
DM		 14649 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14650 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14651 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14652 goto nla_put_failure;
e5497d76
JB		 14653
14654 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
14655 if (!rekey_attr)
14656 goto nla_put_failure;
14657
9360ffd1
DM		 14658 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
14659 NL80211_REPLAY_CTR_LEN, replay_ctr))
14660 goto nla_put_failure;
e5497d76
JB		 14661
14662 nla_nest_end(msg, rekey_attr);
14663
3b7b72ee 14664 genlmsg_end(msg, hdr);
e5497d76 14665
68eb5503 14666 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14667 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 14668 return;
14669
14670 nla_put_failure:
14671 genlmsg_cancel(msg, hdr);
14672 nlmsg_free(msg);
14673}
14674
947add36
JB		 14675void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
14676 const u8 *replay_ctr, gfp_t gfp)
14677{
14678 struct wireless_dev *wdev = dev->ieee80211_ptr;
14679 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14680 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14681
14682 trace_cfg80211_gtk_rekey_notify(dev, bssid);
14683 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
14684}
14685EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
14686
14687static void
14688nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
14689 struct net_device *netdev, int index,
14690 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 14691{
14692 struct sk_buff *msg;
14693 struct nlattr *attr;
14694 void *hdr;
14695
58050fce 14696 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 14697 if (!msg)
14698 return;
14699
14700 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
14701 if (!hdr) {
14702 nlmsg_free(msg);
14703 return;
14704 }
14705
9360ffd1
DM		 14706 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14707 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14708 goto nla_put_failure;
c9df56b4
JM		 14709
14710 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
14711 if (!attr)
14712 goto nla_put_failure;
14713
9360ffd1
DM		 14714 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
14715 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
14716 (preauth &&
14717 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
14718 goto nla_put_failure;
c9df56b4
JM		 14719
14720 nla_nest_end(msg, attr);
14721
3b7b72ee 14722 genlmsg_end(msg, hdr);
c9df56b4 14723
68eb5503 14724 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14725 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 14726 return;
14727
14728 nla_put_failure:
14729 genlmsg_cancel(msg, hdr);
14730 nlmsg_free(msg);
14731}
14732
947add36
JB		 14733void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
14734 const u8 *bssid, bool preauth, gfp_t gfp)
14735{
14736 struct wireless_dev *wdev = dev->ieee80211_ptr;
14737 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14738 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14739
14740 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
14741 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
14742}
14743EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
14744
14745static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
14746 struct net_device *netdev,
14747 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 14748 gfp_t gfp,
14749 enum nl80211_commands notif,
14750 u8 count)
5314526b
TP		 14751{
14752 struct sk_buff *msg;
14753 void *hdr;
14754
58050fce 14755 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 14756 if (!msg)
14757 return;
14758
f8d7552e 14759 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 14760 if (!hdr) {
14761 nlmsg_free(msg);
14762 return;
14763 }
14764
683b6d3b
JB		 14765 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14766 goto nla_put_failure;
14767
14768 if (nl80211_send_chandef(msg, chandef))
7eab0f64 14769 goto nla_put_failure;
5314526b 14770
f8d7552e
LC		 14771 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
14772 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
14773 goto nla_put_failure;
14774
5314526b
TP		 14775 genlmsg_end(msg, hdr);
14776
68eb5503 14777 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14778 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 14779 return;
14780
14781 nla_put_failure:
14782 genlmsg_cancel(msg, hdr);
14783 nlmsg_free(msg);
14784}
14785
947add36
JB		 14786void cfg80211_ch_switch_notify(struct net_device *dev,
14787 struct cfg80211_chan_def *chandef)
84f10708 14788{
947add36
JB		 14789 struct wireless_dev *wdev = dev->ieee80211_ptr;
14790 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14791 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 14792
e487eaeb 14793 ASSERT_WDEV_LOCK(wdev);
947add36 14794
e487eaeb 14795 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 14796
9e0e2961 14797 wdev->chandef = *chandef;
96f55f12 14798 wdev->preset_chandef = *chandef;
f8d7552e
LC		 14799 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14800 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 14801}
14802EXPORT_SYMBOL(cfg80211_ch_switch_notify);
14803
f8d7552e
LC		 14804void cfg80211_ch_switch_started_notify(struct net_device *dev,
14805 struct cfg80211_chan_def *chandef,
14806 u8 count)
14807{
14808 struct wireless_dev *wdev = dev->ieee80211_ptr;
14809 struct wiphy *wiphy = wdev->wiphy;
14810 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14811
14812 trace_cfg80211_ch_switch_started_notify(dev, chandef);
14813
14814 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14815 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
14816}
14817EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
14818
04f39047
SW		 14819void
14820nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 14821 const struct cfg80211_chan_def *chandef,
04f39047
SW		 14822 enum nl80211_radar_event event,
14823 struct net_device *netdev, gfp_t gfp)
14824{
14825 struct sk_buff *msg;
14826 void *hdr;
14827
14828 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14829 if (!msg)
14830 return;
14831
14832 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
14833 if (!hdr) {
14834 nlmsg_free(msg);
14835 return;
14836 }
14837
14838 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
14839 goto nla_put_failure;
14840
14841 /* NOP and radar events don't need a netdev parameter */
14842 if (netdev) {
14843 struct wireless_dev *wdev = netdev->ieee80211_ptr;
14844
14845 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
2dad624e
ND		 14846 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14847 NL80211_ATTR_PAD))
04f39047
SW		 14848 goto nla_put_failure;
14849 }
14850
14851 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
14852 goto nla_put_failure;
14853
14854 if (nl80211_send_chandef(msg, chandef))
14855 goto nla_put_failure;
14856
9c90a9f6 14857 genlmsg_end(msg, hdr);
04f39047 14858
68eb5503 14859 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14860 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 14861 return;
14862
14863 nla_put_failure:
14864 genlmsg_cancel(msg, hdr);
14865 nlmsg_free(msg);
14866}
14867
7f6cf311
JB		 14868void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
14869 u64 cookie, bool acked, gfp_t gfp)
14870{
14871 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14872 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 14873 struct sk_buff *msg;
14874 void *hdr;
7f6cf311 14875
4ee3e063
BL		 14876 trace_cfg80211_probe_status(dev, addr, cookie, acked);
14877
58050fce 14878 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 14879
7f6cf311
JB		 14880 if (!msg)
14881 return;
14882
14883 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
14884 if (!hdr) {
14885 nlmsg_free(msg);
14886 return;
14887 }
14888
9360ffd1
DM		 14889 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14890 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14891 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2dad624e
ND		 14892 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14893 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14894 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
14895 goto nla_put_failure;
7f6cf311 14896
9c90a9f6 14897 genlmsg_end(msg, hdr);
7f6cf311 14898
68eb5503 14899 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14900 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 14901 return;
14902
14903 nla_put_failure:
14904 genlmsg_cancel(msg, hdr);
14905 nlmsg_free(msg);
14906}
14907EXPORT_SYMBOL(cfg80211_probe_status);
14908
5e760230
JB		 14909void cfg80211_report_obss_beacon(struct wiphy *wiphy,
14910 const u8 *frame, size_t len,
37c73b5f 14911 int freq, int sig_dbm)
5e760230 14912{
f26cbf40 14913 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 14914 struct sk_buff *msg;
14915 void *hdr;
37c73b5f 14916 struct cfg80211_beacon_registration *reg;
5e760230 14917
4ee3e063
BL		 14918 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
14919
37c73b5f
BG		 14920 spin_lock_bh(&rdev->beacon_registrations_lock);
14921 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
14922 msg = nlmsg_new(len + 100, GFP_ATOMIC);
14923 if (!msg) {
14924 spin_unlock_bh(&rdev->beacon_registrations_lock);
14925 return;
14926 }
5e760230 14927
37c73b5f
BG		 14928 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
14929 if (!hdr)
14930 goto nla_put_failure;
5e760230 14931
37c73b5f
BG		 14932 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14933 (freq &&
14934 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
14935 (sig_dbm &&
14936 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
14937 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
14938 goto nla_put_failure;
5e760230 14939
37c73b5f 14940 genlmsg_end(msg, hdr);
5e760230 14941
37c73b5f
BG		 14942 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
14943 }
14944 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 14945 return;
14946
14947 nla_put_failure:
37c73b5f
BG		 14948 spin_unlock_bh(&rdev->beacon_registrations_lock);
14949 if (hdr)
14950 genlmsg_cancel(msg, hdr);
5e760230
JB		 14951 nlmsg_free(msg);
14952}
14953EXPORT_SYMBOL(cfg80211_report_obss_beacon);
14954
cd8f7cb4 14955#ifdef CONFIG_PM
8cd4d456
LC		 14956static int cfg80211_net_detect_results(struct sk_buff *msg,
14957 struct cfg80211_wowlan_wakeup *wakeup)
14958{
14959 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
14960 struct nlattr *nl_results, *nl_match, *nl_freqs;
14961 int i, j;
14962
14963 nl_results = nla_nest_start(
14964 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
14965 if (!nl_results)
14966 return -EMSGSIZE;
14967
14968 for (i = 0; i < nd->n_matches; i++) {
14969 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
14970
14971 nl_match = nla_nest_start(msg, i);
14972 if (!nl_match)
14973 break;
14974
14975 /* The SSID attribute is optional in nl80211, but for
14976 * simplicity reasons it's always present in the
14977 * cfg80211 structure. If a driver can't pass the
14978 * SSID, that needs to be changed. A zero length SSID
14979 * is still a valid SSID (wildcard), so it cannot be
14980 * used for this purpose.
14981 */
14982 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
14983 match->ssid.ssid)) {
14984 nla_nest_cancel(msg, nl_match);
14985 goto out;
14986 }
14987
14988 if (match->n_channels) {
14989 nl_freqs = nla_nest_start(
14990 msg, NL80211_ATTR_SCAN_FREQUENCIES);
14991 if (!nl_freqs) {
14992 nla_nest_cancel(msg, nl_match);
14993 goto out;
14994 }
14995
14996 for (j = 0; j < match->n_channels; j++) {
5528fae8 14997 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 14998 nla_nest_cancel(msg, nl_freqs);
14999 nla_nest_cancel(msg, nl_match);
15000 goto out;
15001 }
15002 }
15003
15004 nla_nest_end(msg, nl_freqs);
15005 }
15006
15007 nla_nest_end(msg, nl_match);
15008 }
15009
15010out:
15011 nla_nest_end(msg, nl_results);
15012 return 0;
15013}
15014
cd8f7cb4
JB		 15015void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
15016 struct cfg80211_wowlan_wakeup *wakeup,
15017 gfp_t gfp)
15018{
f26cbf40 15019 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 15020 struct sk_buff *msg;
15021 void *hdr;
9c90a9f6 15022 int size = 200;
cd8f7cb4
JB		 15023
15024 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
15025
15026 if (wakeup)
15027 size += wakeup->packet_present_len;
15028
15029 msg = nlmsg_new(size, gfp);
15030 if (!msg)
15031 return;
15032
15033 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
15034 if (!hdr)
15035 goto free_msg;
15036
15037 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 15038 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15039 NL80211_ATTR_PAD))
cd8f7cb4
JB		 15040 goto free_msg;
15041
15042 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
15043 wdev->netdev->ifindex))
15044 goto free_msg;
15045
15046 if (wakeup) {
15047 struct nlattr *reasons;
15048
15049 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 15050 if (!reasons)
15051 goto free_msg;
cd8f7cb4
JB		 15052
15053 if (wakeup->disconnect &&
15054 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
15055 goto free_msg;
15056 if (wakeup->magic_pkt &&
15057 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
15058 goto free_msg;
15059 if (wakeup->gtk_rekey_failure &&
15060 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
15061 goto free_msg;
15062 if (wakeup->eap_identity_req &&
15063 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
15064 goto free_msg;
15065 if (wakeup->four_way_handshake &&
15066 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
15067 goto free_msg;
15068 if (wakeup->rfkill_release &&
15069 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
15070 goto free_msg;
15071
15072 if (wakeup->pattern_idx >= 0 &&
15073 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
15074 wakeup->pattern_idx))
15075 goto free_msg;
15076
ae917c9f
JB		 15077 if (wakeup->tcp_match &&
15078 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
15079 goto free_msg;
2a0e047e 15080
ae917c9f
JB		 15081 if (wakeup->tcp_connlost &&
15082 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
15083 goto free_msg;
2a0e047e 15084
ae917c9f
JB		 15085 if (wakeup->tcp_nomoretokens &&
15086 nla_put_flag(msg,
15087 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
15088 goto free_msg;
2a0e047e 15089
cd8f7cb4
JB		 15090 if (wakeup->packet) {
15091 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
15092 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
15093
15094 if (!wakeup->packet_80211) {
15095 pkt_attr =
15096 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
15097 len_attr =
15098 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
15099 }
15100
15101 if (wakeup->packet_len &&
15102 nla_put_u32(msg, len_attr, wakeup->packet_len))
15103 goto free_msg;
15104
15105 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
15106 wakeup->packet))
15107 goto free_msg;
15108 }
15109
8cd4d456
LC		 15110 if (wakeup->net_detect &&
15111 cfg80211_net_detect_results(msg, wakeup))
15112 goto free_msg;
15113
cd8f7cb4
JB		 15114 nla_nest_end(msg, reasons);
15115 }
15116
9c90a9f6 15117 genlmsg_end(msg, hdr);
cd8f7cb4 15118
68eb5503 15119 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 15120 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 15121 return;
15122
15123 free_msg:
15124 nlmsg_free(msg);
15125}
15126EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
15127#endif
15128
3475b094
JM		 15129void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
15130 enum nl80211_tdls_operation oper,
15131 u16 reason_code, gfp_t gfp)
15132{
15133 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 15134 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 15135 struct sk_buff *msg;
15136 void *hdr;
3475b094
JM		 15137
15138 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
15139 reason_code);
15140
15141 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15142 if (!msg)
15143 return;
15144
15145 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
15146 if (!hdr) {
15147 nlmsg_free(msg);
15148 return;
15149 }
15150
15151 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15152 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
15153 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
15154 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
15155 (reason_code > 0 &&
15156 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
15157 goto nla_put_failure;
15158
9c90a9f6 15159 genlmsg_end(msg, hdr);
3475b094 15160
68eb5503 15161 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 15162 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 15163 return;
15164
15165 nla_put_failure:
15166 genlmsg_cancel(msg, hdr);
15167 nlmsg_free(msg);
15168}
15169EXPORT_SYMBOL(cfg80211_tdls_oper_request);
15170
026331c4
JM		 15171static int nl80211_netlink_notify(struct notifier_block * nb,
15172 unsigned long state,
15173 void *_notify)
15174{
15175 struct netlink_notify *notify = _notify;
15176 struct cfg80211_registered_device *rdev;
15177 struct wireless_dev *wdev;
37c73b5f 15178 struct cfg80211_beacon_registration *reg, *tmp;
026331c4 15179
8f815cdd 15180 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
026331c4
JM		 15181 return NOTIFY_DONE;
15182
15183 rcu_read_lock();
15184
5e760230 15185 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
ca986ad9 15186 struct cfg80211_sched_scan_request *sched_scan_req;
753aacfd 15187
ca986ad9
AVS		 15188 list_for_each_entry_rcu(sched_scan_req,
15189 &rdev->sched_scan_req_list,
15190 list) {
15191 if (sched_scan_req->owner_nlportid == notify->portid) {
15192 sched_scan_req->nl_owner_dead = true;
753aacfd 15193 schedule_work(&rdev->sched_scan_stop_wk);
ca986ad9 15194 }
753aacfd 15195 }
78f22b6a 15196
53873f13 15197 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15e47304 15198 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 15199
ab81007a
JB		 15200 if (wdev->owner_nlportid == notify->portid) {
15201 wdev->nl_owner_dead = true;
15202 schedule_work(&rdev->destroy_work);
15203 } else if (wdev->conn_owner_nlportid == notify->portid) {
bd2522b1 15204 schedule_work(&wdev->disconnect_wk);
ab81007a 15205 }
78f22b6a
JB		 15206 }
15207
37c73b5f
BG		 15208 spin_lock_bh(&rdev->beacon_registrations_lock);
15209 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
15210 list) {
15211 if (reg->nlportid == notify->portid) {
15212 list_del(&reg->list);
15213 kfree(reg);
15214 break;
15215 }
15216 }
15217 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 15218 }
026331c4
JM		 15219
15220 rcu_read_unlock();
15221
05050753
I		 15222 /*
15223 * It is possible that the user space process that is controlling the
15224 * indoor setting disappeared, so notify the regulatory core.
15225 */
15226 regulatory_netlink_notify(notify->portid);
6784c7db 15227 return NOTIFY_OK;
026331c4
JM		 15228}
15229
15230static struct notifier_block nl80211_netlink_notifier = {
15231 .notifier_call = nl80211_netlink_notify,
15232};
15233
355199e0
JM		 15234void cfg80211_ft_event(struct net_device *netdev,
15235 struct cfg80211_ft_event_params *ft_event)
15236{
15237 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 15238 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 15239 struct sk_buff *msg;
15240 void *hdr;
355199e0
JM		 15241
15242 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
15243
15244 if (!ft_event->target_ap)
15245 return;
15246
4ef8c1c9 15247 msg = nlmsg_new(100 + ft_event->ric_ies_len, GFP_KERNEL);
355199e0
JM		 15248 if (!msg)
15249 return;
15250
15251 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 15252 if (!hdr)
15253 goto out;
355199e0 15254
ae917c9f
JB		 15255 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15256 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
15257 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
15258 goto out;
355199e0 15259
ae917c9f
JB		 15260 if (ft_event->ies &&
15261 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
15262 goto out;
15263 if (ft_event->ric_ies &&
15264 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
15265 ft_event->ric_ies))
15266 goto out;
355199e0 15267
9c90a9f6 15268 genlmsg_end(msg, hdr);
355199e0 15269
68eb5503 15270 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 15271 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 15272 return;
15273 out:
15274 nlmsg_free(msg);
355199e0
JM		 15275}
15276EXPORT_SYMBOL(cfg80211_ft_event);
15277
5de17984
AS		 15278void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
15279{
15280 struct cfg80211_registered_device *rdev;
15281 struct sk_buff *msg;
15282 void *hdr;
15283 u32 nlportid;
15284
f26cbf40 15285 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 15286 if (!rdev->crit_proto_nlportid)
15287 return;
15288
15289 nlportid = rdev->crit_proto_nlportid;
15290 rdev->crit_proto_nlportid = 0;
15291
15292 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15293 if (!msg)
15294 return;
15295
15296 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
15297 if (!hdr)
15298 goto nla_put_failure;
15299
15300 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 15301 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15302 NL80211_ATTR_PAD))
5de17984
AS		 15303 goto nla_put_failure;
15304
15305 genlmsg_end(msg, hdr);
15306
15307 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
15308 return;
15309
15310 nla_put_failure:
15311 if (hdr)
15312 genlmsg_cancel(msg, hdr);
15313 nlmsg_free(msg);
5de17984
AS		 15314}
15315EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
15316
348baf0e
JB		 15317void nl80211_send_ap_stopped(struct wireless_dev *wdev)
15318{
15319 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 15320 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 15321 struct sk_buff *msg;
15322 void *hdr;
15323
15324 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
15325 if (!msg)
15326 return;
15327
15328 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
15329 if (!hdr)
15330 goto out;
15331
15332 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15333 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
2dad624e
ND		 15334 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15335 NL80211_ATTR_PAD))
348baf0e
JB		 15336 goto out;
15337
15338 genlmsg_end(msg, hdr);
15339
15340 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
15341 NL80211_MCGRP_MLME, GFP_KERNEL);
15342 return;
15343 out:
15344 nlmsg_free(msg);
15345}
15346
55682965
JB		 15347/* initialisation/exit functions */
15348
56989f6d 15349int __init nl80211_init(void)
55682965 15350{
0d63cbb5 15351 int err;
55682965 15352
489111e5 15353 err = genl_register_family(&nl80211_fam);
55682965
JB		 15354 if (err)
15355 return err;
15356
026331c4
JM		 15357 err = netlink_register_notifier(&nl80211_netlink_notifier);
15358 if (err)
15359 goto err_out;
15360
55682965
JB		 15361 return 0;
15362 err_out:
15363 genl_unregister_family(&nl80211_fam);
15364 return err;
15365}
15366
15367void nl80211_exit(void)
15368{
026331c4 15369 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 15370 genl_unregister_family(&nl80211_fam);
15371}
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