]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blame - net/wireless/nl80211.c
projects / mirror_ubuntu-bionic-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
drm/vmwgfx: Use the backdoor port if the HB port is not available
[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);
a1e91aab 4226 break;
bdd3ae3d
JB		 4227 default:
4228 return -EINVAL;
4229 }
5727ef1b 4230
3383b5a6
JB		 4231 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
4232 if (flags[flag]) {
eccb8e8f 4233 params->sta_flags_set |= (1<<flag);
5727ef1b 4234
3383b5a6
JB		 4235 /* no longer support new API additions in old API */
4236 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
4237 return -EINVAL;
4238 }
4239 }
4240
5727ef1b
JB		 4241 return 0;
4242}
4243
c8dcfd8a
FF		 4244static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
4245 int attr)
4246{
4247 struct nlattr *rate;
8eb41c8d
VK		 4248 u32 bitrate;
4249 u16 bitrate_compat;
bbf67e45 4250 enum nl80211_rate_info rate_flg;
c8dcfd8a
FF		 4251
4252 rate = nla_nest_start(msg, attr);
4253 if (!rate)
db9c64cf 4254 return false;
c8dcfd8a
FF		 4255
4256 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
4257 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 4258 /* report 16-bit bitrate only if we can */
4259 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 4260 if (bitrate > 0 &&
4261 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
4262 return false;
4263 if (bitrate_compat > 0 &&
4264 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
4265 return false;
4266
b51f3bee
JB		 4267 switch (info->bw) {
4268 case RATE_INFO_BW_5:
4269 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
4270 break;
4271 case RATE_INFO_BW_10:
4272 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
4273 break;
4274 default:
4275 WARN_ON(1);
4276 /* fall through */
4277 case RATE_INFO_BW_20:
4278 rate_flg = 0;
4279 break;
4280 case RATE_INFO_BW_40:
4281 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
4282 break;
4283 case RATE_INFO_BW_80:
4284 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
4285 break;
4286 case RATE_INFO_BW_160:
4287 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
4288 break;
4289 }
4290
4291 if (rate_flg && nla_put_flag(msg, rate_flg))
4292 return false;
4293
db9c64cf
JB		 4294 if (info->flags & RATE_INFO_FLAGS_MCS) {
4295 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
4296 return false;
db9c64cf
JB		 4297 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4298 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4299 return false;
4300 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
4301 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
4302 return false;
4303 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
4304 return false;
db9c64cf
JB		 4305 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4306 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4307 return false;
4308 }
c8dcfd8a
FF		 4309
4310 nla_nest_end(msg, rate);
4311 return true;
c8dcfd8a
FF		 4312}
4313
119363c7
FF		 4314static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
4315 int id)
4316{
4317 void *attr;
4318 int i = 0;
4319
4320 if (!mask)
4321 return true;
4322
4323 attr = nla_nest_start(msg, id);
4324 if (!attr)
4325 return false;
4326
4327 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
4328 if (!(mask & BIT(i)))
4329 continue;
4330
4331 if (nla_put_u8(msg, i, signal[i]))
4332 return false;
4333 }
4334
4335 nla_nest_end(msg, attr);
4336
4337 return true;
4338}
4339
cf5ead82
JB		 4340static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
4341 u32 seq, int flags,
66266b3a
JL		 4342 struct cfg80211_registered_device *rdev,
4343 struct net_device *dev,
98b62183 4344 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 4345{
4346 void *hdr;
f4263c98 4347 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 4348
cf5ead82 4349 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 4350 if (!hdr)
4351 return -1;
4352
9360ffd1
DM		 4353 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4354 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
4355 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
4356 goto nla_put_failure;
f5ea9120 4357
2ec600d6
LCC		 4358 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
4359 if (!sinfoattr)
fd5b74dc 4360 goto nla_put_failure;
319090bf
JB		 4361
4362#define PUT_SINFO(attr, memb, type) do { \
d686b920 4363 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
739960f1 4364 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
319090bf
JB		 4365 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
4366 sinfo->memb)) \
4367 goto nla_put_failure; \
4368 } while (0)
d686b920
JB		 4369#define PUT_SINFO_U64(attr, memb) do { \
4370 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4371 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
4372 sinfo->memb, NL80211_STA_INFO_PAD)) \
4373 goto nla_put_failure; \
4374 } while (0)
319090bf
JB		 4375
4376 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
4377 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
4378
4379 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
4380 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 4381 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 4382 (u32)sinfo->rx_bytes))
9360ffd1 4383 goto nla_put_failure;
319090bf
JB		 4384
4385 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
4386 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 4387 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 4388 (u32)sinfo->tx_bytes))
4389 goto nla_put_failure;
319090bf 4390
d686b920
JB		 4391 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
4392 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
319090bf
JB		 4393 PUT_SINFO(LLID, llid, u16);
4394 PUT_SINFO(PLID, plid, u16);
4395 PUT_SINFO(PLINK_STATE, plink_state, u8);
d686b920 4396 PUT_SINFO_U64(RX_DURATION, rx_duration);
319090bf 4397
66266b3a
JL		 4398 switch (rdev->wiphy.signal_type) {
4399 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 4400 PUT_SINFO(SIGNAL, signal, u8);
4401 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 4402 break;
4403 default:
4404 break;
4405 }
319090bf 4406 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 4407 if (!nl80211_put_signal(msg, sinfo->chains,
4408 sinfo->chain_signal,
4409 NL80211_STA_INFO_CHAIN_SIGNAL))
4410 goto nla_put_failure;
4411 }
319090bf 4412 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 4413 if (!nl80211_put_signal(msg, sinfo->chains,
4414 sinfo->chain_signal_avg,
4415 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
4416 goto nla_put_failure;
4417 }
319090bf 4418 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 4419 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
4420 NL80211_STA_INFO_TX_BITRATE))
4421 goto nla_put_failure;
4422 }
319090bf 4423 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 4424 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
4425 NL80211_STA_INFO_RX_BITRATE))
420e7fab 4426 goto nla_put_failure;
420e7fab 4427 }
319090bf
JB		 4428
4429 PUT_SINFO(RX_PACKETS, rx_packets, u32);
4430 PUT_SINFO(TX_PACKETS, tx_packets, u32);
4431 PUT_SINFO(TX_RETRIES, tx_retries, u32);
4432 PUT_SINFO(TX_FAILED, tx_failed, u32);
4433 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
4434 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
4435 PUT_SINFO(LOCAL_PM, local_pm, u32);
4436 PUT_SINFO(PEER_PM, peer_pm, u32);
4437 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
4438
4439 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 4440 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
4441 if (!bss_param)
4442 goto nla_put_failure;
4443
9360ffd1
DM		 4444 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
4445 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
4446 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
4447 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
4448 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
4449 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
4450 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
4451 sinfo->bss_param.dtim_period) ||
4452 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
4453 sinfo->bss_param.beacon_interval))
4454 goto nla_put_failure;
f4263c98
PS		 4455
4456 nla_nest_end(msg, bss_param);
4457 }
319090bf 4458 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 4459 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
4460 sizeof(struct nl80211_sta_flag_update),
4461 &sinfo->sta_flags))
4462 goto nla_put_failure;
319090bf 4463
d686b920
JB		 4464 PUT_SINFO_U64(T_OFFSET, t_offset);
4465 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
4466 PUT_SINFO_U64(BEACON_RX, rx_beacon);
a76b1942 4467 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 4468
4469#undef PUT_SINFO
d686b920 4470#undef PUT_SINFO_U64
6de39808
JB		 4471
4472 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
4473 struct nlattr *tidsattr;
4474 int tid;
4475
4476 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
4477 if (!tidsattr)
4478 goto nla_put_failure;
4479
4480 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
4481 struct cfg80211_tid_stats *tidstats;
4482 struct nlattr *tidattr;
4483
4484 tidstats = &sinfo->pertid[tid];
4485
4486 if (!tidstats->filled)
4487 continue;
4488
4489 tidattr = nla_nest_start(msg, tid + 1);
4490 if (!tidattr)
4491 goto nla_put_failure;
4492
d686b920 4493#define PUT_TIDVAL_U64(attr, memb) do { \
6de39808 4494 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
d686b920
JB		 4495 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
4496 tidstats->memb, NL80211_TID_STATS_PAD)) \
6de39808
JB		 4497 goto nla_put_failure; \
4498 } while (0)
4499
d686b920
JB		 4500 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4501 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4502 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4503 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
6de39808 4504
d686b920 4505#undef PUT_TIDVAL_U64
6de39808
JB		 4506 nla_nest_end(msg, tidattr);
4507 }
4508
4509 nla_nest_end(msg, tidsattr);
4510 }
4511
2ec600d6 4512 nla_nest_end(msg, sinfoattr);
fd5b74dc 4513
319090bf 4514 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 4515 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4516 sinfo->assoc_req_ies))
4517 goto nla_put_failure;
50d3dfb7 4518
053c095a
JB		 4519 genlmsg_end(msg, hdr);
4520 return 0;
fd5b74dc
JB		 4521
4522 nla_put_failure:
bc3ed28c
TG		 4523 genlmsg_cancel(msg, hdr);
4524 return -EMSGSIZE;
fd5b74dc
JB		 4525}
4526
2ec600d6 4527static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 4528 struct netlink_callback *cb)
2ec600d6 4529{
2ec600d6 4530 struct station_info sinfo;
1b8ec87a 4531 struct cfg80211_registered_device *rdev;
97990a06 4532 struct wireless_dev *wdev;
2ec600d6 4533 u8 mac_addr[ETH_ALEN];
97990a06 4534 int sta_idx = cb->args[2];
2ec600d6 4535 int err;
2ec600d6 4536
ea90e0dc 4537 rtnl_lock();
1b8ec87a 4538 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893 4539 if (err)
ea90e0dc 4540 goto out_err;
bba95fef 4541
97990a06
JB		 4542 if (!wdev->netdev) {
4543 err = -EINVAL;
4544 goto out_err;
4545 }
4546
1b8ec87a 4547 if (!rdev->ops->dump_station) {
eec60b03 4548 err = -EOPNOTSUPP;
bba95fef
JB		 4549 goto out_err;
4550 }
4551
bba95fef 4552 while (1) {
f612cedf 4553 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 4554 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 4555 mac_addr, &sinfo);
bba95fef
JB		 4556 if (err == -ENOENT)
4557 break;
4558 if (err)
3b85875a 4559 goto out_err;
bba95fef 4560
cf5ead82 4561 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 4562 NETLINK_CB(cb->skb).portid,
bba95fef 4563 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 4564 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 4565 &sinfo) < 0)
4566 goto out;
4567
4568 sta_idx++;
4569 }
4570
bba95fef 4571 out:
97990a06 4572 cb->args[2] = sta_idx;
bba95fef 4573 err = skb->len;
bba95fef 4574 out_err:
ea90e0dc 4575 rtnl_unlock();
bba95fef
JB		 4576
4577 return err;
2ec600d6 4578}
fd5b74dc 4579
5727ef1b
JB		 4580static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4581{
4c476991
JB		 4582 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4583 struct net_device *dev = info->user_ptr[1];
2ec600d6 4584 struct station_info sinfo;
fd5b74dc
JB		 4585 struct sk_buff *msg;
4586 u8 *mac_addr = NULL;
4c476991 4587 int err;
fd5b74dc 4588
2ec600d6 4589 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 4590
4591 if (!info->attrs[NL80211_ATTR_MAC])
4592 return -EINVAL;
4593
4594 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4595
4c476991
JB		 4596 if (!rdev->ops->get_station)
4597 return -EOPNOTSUPP;
3b85875a 4598
e35e4d28 4599 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 4600 if (err)
4c476991 4601 return err;
2ec600d6 4602
fd2120ca 4603 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 4604 if (!msg)
4c476991 4605 return -ENOMEM;
fd5b74dc 4606
cf5ead82
JB		 4607 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4608 info->snd_portid, info->snd_seq, 0,
66266b3a 4609 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 4610 nlmsg_free(msg);
4611 return -ENOBUFS;
4612 }
3b85875a 4613
4c476991 4614 return genlmsg_reply(msg, info);
5727ef1b
JB		 4615}
4616
77ee7c89
JB		 4617int cfg80211_check_station_change(struct wiphy *wiphy,
4618 struct station_parameters *params,
4619 enum cfg80211_station_type statype)
4620{
e4208427
AB		 4621 if (params->listen_interval != -1 &&
4622 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4623 return -EINVAL;
e4208427 4624
17b94247
AB		 4625 if (params->support_p2p_ps != -1 &&
4626 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4627 return -EINVAL;
4628
c72e1140 4629 if (params->aid &&
e4208427
AB		 4630 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4631 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4632 return -EINVAL;
4633
4634 /* When you run into this, adjust the code below for the new flag */
4635 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4636
4637 switch (statype) {
eef941e6
TP		 4638 case CFG80211_STA_MESH_PEER_KERNEL:
4639 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4640 /*
4641 * No ignoring the TDLS flag here -- the userspace mesh
4642 * code doesn't have the bug of including TDLS in the
4643 * mask everywhere.
4644 */
4645 if (params->sta_flags_mask &
4646 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4647 BIT(NL80211_STA_FLAG_MFP) |
4648 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4649 return -EINVAL;
4650 break;
4651 case CFG80211_STA_TDLS_PEER_SETUP:
4652 case CFG80211_STA_TDLS_PEER_ACTIVE:
4653 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4654 return -EINVAL;
4655 /* ignore since it can't change */
4656 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4657 break;
4658 default:
4659 /* disallow mesh-specific things */
4660 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4661 return -EINVAL;
4662 if (params->local_pm)
4663 return -EINVAL;
4664 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4665 return -EINVAL;
4666 }
4667
4668 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4669 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4670 /* TDLS can't be set, ... */
4671 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4672 return -EINVAL;
4673 /*
4674 * ... but don't bother the driver with it. This works around
4675 * a hostapd/wpa_supplicant issue -- it always includes the
4676 * TLDS_PEER flag in the mask even for AP mode.
4677 */
4678 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4679 }
4680
47edb11b
AB		 4681 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4682 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4683 /* reject other things that can't change */
4684 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4685 return -EINVAL;
4686 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4687 return -EINVAL;
4688 if (params->supported_rates)
4689 return -EINVAL;
4690 if (params->ext_capab || params->ht_capa || params->vht_capa)
4691 return -EINVAL;
4692 }
4693
47edb11b
AB		 4694 if (statype != CFG80211_STA_AP_CLIENT &&
4695 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4696 if (params->vlan)
4697 return -EINVAL;
4698 }
4699
4700 switch (statype) {
4701 case CFG80211_STA_AP_MLME_CLIENT:
4702 /* Use this only for authorizing/unauthorizing a station */
4703 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4704 return -EOPNOTSUPP;
4705 break;
4706 case CFG80211_STA_AP_CLIENT:
47edb11b 4707 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4708 /* accept only the listed bits */
4709 if (params->sta_flags_mask &
4710 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4711 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4712 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4713 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4714 BIT(NL80211_STA_FLAG_WME) |
4715 BIT(NL80211_STA_FLAG_MFP)))
4716 return -EINVAL;
4717
4718 /* but authenticated/associated only if driver handles it */
4719 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4720 params->sta_flags_mask &
4721 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4722 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4723 return -EINVAL;
4724 break;
4725 case CFG80211_STA_IBSS:
4726 case CFG80211_STA_AP_STA:
4727 /* reject any changes other than AUTHORIZED */
4728 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4729 return -EINVAL;
4730 break;
4731 case CFG80211_STA_TDLS_PEER_SETUP:
4732 /* reject any changes other than AUTHORIZED or WME */
4733 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4734 BIT(NL80211_STA_FLAG_WME)))
4735 return -EINVAL;
4736 /* force (at least) rates when authorizing */
4737 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4738 !params->supported_rates)
4739 return -EINVAL;
4740 break;
4741 case CFG80211_STA_TDLS_PEER_ACTIVE:
4742 /* reject any changes */
4743 return -EINVAL;
eef941e6 4744 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4745 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4746 return -EINVAL;
4747 break;
eef941e6 4748 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4749 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4750 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4751 return -EINVAL;
4752 break;
4753 }
4754
06f7c88c
BL		 4755 /*
4756 * Older kernel versions ignored this attribute entirely, so don't
4757 * reject attempts to update it but mark it as unused instead so the
4758 * driver won't look at the data.
4759 */
4760 if (statype != CFG80211_STA_AP_CLIENT_UNASSOC &&
4761 statype != CFG80211_STA_TDLS_PEER_SETUP)
4762 params->opmode_notif_used = false;
4763
77ee7c89
JB		 4764 return 0;
4765}
4766EXPORT_SYMBOL(cfg80211_check_station_change);
4767
5727ef1b 4768/*
c258d2de 4769 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4770 */
80b99899
JB		 4771static struct net_device *get_vlan(struct genl_info *info,
4772 struct cfg80211_registered_device *rdev)
5727ef1b 4773{
463d0183 4774 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4775 struct net_device *v;
4776 int ret;
4777
4778 if (!vlanattr)
4779 return NULL;
4780
4781 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4782 if (!v)
4783 return ERR_PTR(-ENODEV);
4784
4785 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4786 ret = -EINVAL;
4787 goto error;
5727ef1b 4788 }
80b99899 4789
77ee7c89
JB		 4790 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4791 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4792 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4793 ret = -EINVAL;
4794 goto error;
4795 }
4796
80b99899
JB		 4797 if (!netif_running(v)) {
4798 ret = -ENETDOWN;
4799 goto error;
4800 }
4801
4802 return v;
4803 error:
4804 dev_put(v);
4805 return ERR_PTR(ret);
5727ef1b
JB		 4806}
4807
94e860f1
JB		 4808static const struct nla_policy
4809nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4810 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4811 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4812};
4813
ff276691
JB		 4814static int nl80211_parse_sta_wme(struct genl_info *info,
4815 struct station_parameters *params)
df881293 4816{
df881293
JM		 4817 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4818 struct nlattr *nla;
4819 int err;
4820
df881293
JM		 4821 /* parse WME attributes if present */
4822 if (!info->attrs[NL80211_ATTR_STA_WME])
4823 return 0;
4824
4825 nla = info->attrs[NL80211_ATTR_STA_WME];
4826 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
fe52145f 4827 nl80211_sta_wme_policy, info->extack);
df881293
JM		 4828 if (err)
4829 return err;
4830
4831 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4832 params->uapsd_queues = nla_get_u8(
4833 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4834 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4835 return -EINVAL;
4836
4837 if (tb[NL80211_STA_WME_MAX_SP])
4838 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4839
4840 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4841 return -EINVAL;
4842
4843 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4844
4845 return 0;
4846}
4847
c01fc9ad
SD		 4848static int nl80211_parse_sta_channel_info(struct genl_info *info,
4849 struct station_parameters *params)
4850{
4851 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4852 params->supported_channels =
4853 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4854 params->supported_channels_len =
4855 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4856 /*
4857 * Need to include at least one (first channel, number of
4858 * channels) tuple for each subband, and must have proper
4859 * tuples for the rest of the data as well.
4860 */
4861 if (params->supported_channels_len < 2)
4862 return -EINVAL;
4863 if (params->supported_channels_len % 2)
4864 return -EINVAL;
4865 }
4866
4867 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4868 params->supported_oper_classes =
4869 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4870 params->supported_oper_classes_len =
4871 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4872 /*
4873 * The value of the Length field of the Supported Operating
4874 * Classes element is between 2 and 253.
4875 */
4876 if (params->supported_oper_classes_len < 2 ||
4877 params->supported_oper_classes_len > 253)
4878 return -EINVAL;
4879 }
4880 return 0;
4881}
4882
ff276691
JB		 4883static int nl80211_set_station_tdls(struct genl_info *info,
4884 struct station_parameters *params)
4885{
c01fc9ad 4886 int err;
ff276691 4887 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4888 if (info->attrs[NL80211_ATTR_PEER_AID])
4889 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4890 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4891 params->ht_capa =
4892 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4893 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4894 params->vht_capa =
4895 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4896
c01fc9ad
SD		 4897 err = nl80211_parse_sta_channel_info(info, params);
4898 if (err)
4899 return err;
4900
ff276691
JB		 4901 return nl80211_parse_sta_wme(info, params);
4902}
4903
5727ef1b
JB		 4904static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4905{
4c476991 4906 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4907 struct net_device *dev = info->user_ptr[1];
5727ef1b 4908 struct station_parameters params;
77ee7c89
JB		 4909 u8 *mac_addr;
4910 int err;
5727ef1b
JB		 4911
4912 memset(&params, 0, sizeof(params));
4913
77ee7c89
JB		 4914 if (!rdev->ops->change_station)
4915 return -EOPNOTSUPP;
4916
e4208427
AB		 4917 /*
4918 * AID and listen_interval properties can be set only for unassociated
4919 * station. Include these parameters here and will check them in
4920 * cfg80211_check_station_change().
4921 */
a9bc31e4
AB		 4922 if (info->attrs[NL80211_ATTR_STA_AID])
4923 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4924
4925 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4926 params.listen_interval =
4927 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4928 else
4929 params.listen_interval = -1;
5727ef1b 4930
17b94247
AB		 4931 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4932 u8 tmp;
4933
4934 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4935 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4936 return -EINVAL;
4937
4938 params.support_p2p_ps = tmp;
4939 } else {
4940 params.support_p2p_ps = -1;
4941 }
4942
5727ef1b
JB		 4943 if (!info->attrs[NL80211_ATTR_MAC])
4944 return -EINVAL;
4945
4946 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4947
4948 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4949 params.supported_rates =
4950 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4951 params.supported_rates_len =
4952 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4953 }
4954
9d62a986
JM		 4955 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4956 params.capability =
4957 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4958 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4959 }
4960
4961 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4962 params.ext_capab =
4963 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4964 params.ext_capab_len =
4965 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4966 }
4967
bdd3ae3d 4968 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4969 return -EINVAL;
4970
f8bacc21 4971 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4972 params.plink_action =
f8bacc21
JB		 4973 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4974 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4975 return -EINVAL;
4976 }
2ec600d6 4977
f8bacc21 4978 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4979 params.plink_state =
f8bacc21
JB		 4980 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4981 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4982 return -EINVAL;
7d27a0ba
MH		 4983 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4984 params.peer_aid = nla_get_u16(
4985 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4986 if (params.peer_aid > IEEE80211_MAX_AID)
4987 return -EINVAL;
4988 }
f8bacc21
JB		 4989 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4990 }
9c3990aa 4991
3b1c5a53
MP		 4992 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4993 enum nl80211_mesh_power_mode pm = nla_get_u32(
4994 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4995
4996 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4997 pm > NL80211_MESH_POWER_MAX)
4998 return -EINVAL;
4999
5000 params.local_pm = pm;
5001 }
5002
06f7c88c
BL		 5003 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5004 params.opmode_notif_used = true;
5005 params.opmode_notif =
5006 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5007 }
5008
77ee7c89
JB		 5009 /* Include parameters for TDLS peer (will check later) */
5010 err = nl80211_set_station_tdls(info, &params);
5011 if (err)
5012 return err;
5013
5014 params.vlan = get_vlan(info, rdev);
5015 if (IS_ERR(params.vlan))
5016 return PTR_ERR(params.vlan);
5017
a97f4424
JB		 5018 switch (dev->ieee80211_ptr->iftype) {
5019 case NL80211_IFTYPE_AP:
5020 case NL80211_IFTYPE_AP_VLAN:
074ac8df 5021 case NL80211_IFTYPE_P2P_GO:
074ac8df 5022 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 5023 case NL80211_IFTYPE_STATION:
267335d6 5024 case NL80211_IFTYPE_ADHOC:
a97f4424 5025 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 5026 break;
5027 default:
77ee7c89
JB		 5028 err = -EOPNOTSUPP;
5029 goto out_put_vlan;
034d655e
JB		 5030 }
5031
77ee7c89 5032 /* driver will call cfg80211_check_station_change() */
e35e4d28 5033 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 5034
77ee7c89 5035 out_put_vlan:
5727ef1b
JB		 5036 if (params.vlan)
5037 dev_put(params.vlan);
3b85875a 5038
5727ef1b
JB		 5039 return err;
5040}
5041
5042static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
5043{
4c476991 5044 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 5045 int err;
4c476991 5046 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 5047 struct station_parameters params;
5048 u8 *mac_addr = NULL;
bda95eb1
JB		 5049 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
5050 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 5051
5052 memset(&params, 0, sizeof(params));
5053
984c311b
JB		 5054 if (!rdev->ops->add_station)
5055 return -EOPNOTSUPP;
5056
5727ef1b
JB		 5057 if (!info->attrs[NL80211_ATTR_MAC])
5058 return -EINVAL;
5059
5727ef1b
JB		 5060 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
5061 return -EINVAL;
5062
5063 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
5064 return -EINVAL;
5065
5e4b6f56
JM		 5066 if (!info->attrs[NL80211_ATTR_STA_AID] &&
5067 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 5068 return -EINVAL;
5069
5727ef1b
JB		 5070 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
5071 params.supported_rates =
5072 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5073 params.supported_rates_len =
5074 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5075 params.listen_interval =
5076 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 5077
17b94247
AB		 5078 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
5079 u8 tmp;
5080
5081 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
5082 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
5083 return -EINVAL;
5084
5085 params.support_p2p_ps = tmp;
5086 } else {
5087 /*
5088 * if not specified, assume it's supported for P2P GO interface,
5089 * and is NOT supported for AP interface
5090 */
5091 params.support_p2p_ps =
5092 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
5093 }
5094
3d124ea2 5095 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 5096 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 5097 else
5098 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 5099 if (!params.aid || params.aid > IEEE80211_MAX_AID)
5100 return -EINVAL;
51b50fbe 5101
9d62a986
JM		 5102 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
5103 params.capability =
5104 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
5105 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
5106 }
5107
5108 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
5109 params.ext_capab =
5110 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5111 params.ext_capab_len =
5112 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5113 }
5114
36aedc90
JM		 5115 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
5116 params.ht_capa =
5117 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 5118
f461be3e
MP		 5119 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
5120 params.vht_capa =
5121 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
5122
60f4a7b1
MK		 5123 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5124 params.opmode_notif_used = true;
5125 params.opmode_notif =
5126 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5127 }
5128
f8bacc21 5129 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 5130 params.plink_action =
f8bacc21
JB		 5131 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
5132 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
5133 return -EINVAL;
5134 }
96b78dff 5135
c01fc9ad
SD		 5136 err = nl80211_parse_sta_channel_info(info, &params);
5137 if (err)
5138 return err;
5139
ff276691
JB		 5140 err = nl80211_parse_sta_wme(info, &params);
5141 if (err)
5142 return err;
bdd90d5e 5143
bdd3ae3d 5144 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 5145 return -EINVAL;
5146
496fcc29
JB		 5147 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
5148 * as userspace might just pass through the capabilities from the IEs
5149 * directly, rather than enforcing this restriction and returning an
5150 * error in this case.
5151 */
5152 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
5153 params.ht_capa = NULL;
5154 params.vht_capa = NULL;
5155 }
5156
77ee7c89
JB		 5157 /* When you run into this, adjust the code below for the new flag */
5158 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
5159
bdd90d5e
JB		 5160 switch (dev->ieee80211_ptr->iftype) {
5161 case NL80211_IFTYPE_AP:
5162 case NL80211_IFTYPE_AP_VLAN:
5163 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 5164 /* ignore WME attributes if iface/sta is not capable */
5165 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
5166 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
5167 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 5168
bdd90d5e 5169 /* TDLS peers cannot be added */
3d124ea2
JM		 5170 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5171 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 5172 return -EINVAL;
bdd90d5e
JB		 5173 /* but don't bother the driver with it */
5174 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 5175
d582cffb
JB		 5176 /* allow authenticated/associated only if driver handles it */
5177 if (!(rdev->wiphy.features &
5178 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 5179 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 5180 return -EINVAL;
5181
bda95eb1
JB		 5182 /* Older userspace, or userspace wanting to be compatible with
5183 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
5184 * and assoc flags in the mask, but assumes the station will be
5185 * added as associated anyway since this was the required driver
5186 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
5187 * introduced.
5188 * In order to not bother drivers with this quirk in the API
5189 * set the flags in both the mask and set for new stations in
5190 * this case.
5191 */
5192 if (!(params.sta_flags_mask & auth_assoc)) {
5193 params.sta_flags_mask |= auth_assoc;
5194 params.sta_flags_set |= auth_assoc;
5195 }
5196
bdd90d5e
JB		 5197 /* must be last in here for error handling */
5198 params.vlan = get_vlan(info, rdev);
5199 if (IS_ERR(params.vlan))
5200 return PTR_ERR(params.vlan);
5201 break;
5202 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 5203 /* ignore uAPSD data */
5204 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5205
d582cffb
JB		 5206 /* associated is disallowed */
5207 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
5208 return -EINVAL;
bdd90d5e 5209 /* TDLS peers cannot be added */
3d124ea2
JM		 5210 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5211 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 5212 return -EINVAL;
5213 break;
5214 case NL80211_IFTYPE_STATION:
93d08f0b 5215 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 5216 /* ignore uAPSD data */
5217 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5218
77ee7c89
JB		 5219 /* these are disallowed */
5220 if (params.sta_flags_mask &
5221 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
5222 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 5223 return -EINVAL;
bdd90d5e
JB		 5224 /* Only TDLS peers can be added */
5225 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
5226 return -EINVAL;
5227 /* Can only add if TDLS ... */
5228 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
5229 return -EOPNOTSUPP;
5230 /* ... with external setup is supported */
5231 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
5232 return -EOPNOTSUPP;
77ee7c89
JB		 5233 /*
5234 * Older wpa_supplicant versions always mark the TDLS peer
5235 * as authorized, but it shouldn't yet be.
5236 */
5237 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 5238 break;
5239 default:
5240 return -EOPNOTSUPP;
c75786c9
EP		 5241 }
5242
bdd90d5e 5243 /* be aware of params.vlan when changing code here */
5727ef1b 5244
e35e4d28 5245 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 5246
5727ef1b
JB		 5247 if (params.vlan)
5248 dev_put(params.vlan);
5727ef1b
JB		 5249 return err;
5250}
5251
5252static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
5253{
4c476991
JB		 5254 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5255 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 5256 struct station_del_parameters params;
5257
5258 memset(&params, 0, sizeof(params));
5727ef1b
JB		 5259
5260 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 5261 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 5262
e80cf853 5263 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 5264 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 5265 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5266 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5267 return -EINVAL;
5727ef1b 5268
4c476991
JB		 5269 if (!rdev->ops->del_station)
5270 return -EOPNOTSUPP;
3b85875a 5271
98856866
JM		 5272 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
5273 params.subtype =
5274 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
5275 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
5276 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
5277 return -EINVAL;
5278 } else {
5279 /* Default to Deauthentication frame */
5280 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
5281 }
5282
5283 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
5284 params.reason_code =
5285 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5286 if (params.reason_code == 0)
5287 return -EINVAL; /* 0 is reserved */
5288 } else {
5289 /* Default to reason code 2 */
5290 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
5291 }
5292
89c771e5 5293 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 5294}
5295
15e47304 5296static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 5297 int flags, struct net_device *dev,
5298 u8 *dst, u8 *next_hop,
5299 struct mpath_info *pinfo)
5300{
5301 void *hdr;
5302 struct nlattr *pinfoattr;
5303
1ef4c850 5304 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 5305 if (!hdr)
5306 return -1;
5307
9360ffd1
DM		 5308 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5309 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
5310 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
5311 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
5312 goto nla_put_failure;
f5ea9120 5313
2ec600d6
LCC		 5314 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
5315 if (!pinfoattr)
5316 goto nla_put_failure;
9360ffd1
DM		 5317 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
5318 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
5319 pinfo->frame_qlen))
5320 goto nla_put_failure;
5321 if (((pinfo->filled & MPATH_INFO_SN) &&
5322 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
5323 ((pinfo->filled & MPATH_INFO_METRIC) &&
5324 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
5325 pinfo->metric)) ||
5326 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
5327 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
5328 pinfo->exptime)) ||
5329 ((pinfo->filled & MPATH_INFO_FLAGS) &&
5330 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
5331 pinfo->flags)) ||
5332 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
5333 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
5334 pinfo->discovery_timeout)) ||
5335 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
5336 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
5337 pinfo->discovery_retries)))
5338 goto nla_put_failure;
2ec600d6
LCC		 5339
5340 nla_nest_end(msg, pinfoattr);
5341
053c095a
JB		 5342 genlmsg_end(msg, hdr);
5343 return 0;
2ec600d6
LCC		 5344
5345 nla_put_failure:
bc3ed28c
TG		 5346 genlmsg_cancel(msg, hdr);
5347 return -EMSGSIZE;
2ec600d6
LCC		 5348}
5349
5350static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 5351 struct netlink_callback *cb)
2ec600d6 5352{
2ec600d6 5353 struct mpath_info pinfo;
1b8ec87a 5354 struct cfg80211_registered_device *rdev;
97990a06 5355 struct wireless_dev *wdev;
2ec600d6
LCC		 5356 u8 dst[ETH_ALEN];
5357 u8 next_hop[ETH_ALEN];
97990a06 5358 int path_idx = cb->args[2];
2ec600d6 5359 int err;
2ec600d6 5360
ea90e0dc 5361 rtnl_lock();
1b8ec87a 5362 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893 5363 if (err)
ea90e0dc 5364 goto out_err;
bba95fef 5365
1b8ec87a 5366 if (!rdev->ops->dump_mpath) {
eec60b03 5367 err = -EOPNOTSUPP;
bba95fef
JB		 5368 goto out_err;
5369 }
5370
97990a06 5371 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 5372 err = -EOPNOTSUPP;
0448b5fc 5373 goto out_err;
eec60b03
JM		 5374 }
5375
bba95fef 5376 while (1) {
1b8ec87a 5377 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 5378 next_hop, &pinfo);
bba95fef 5379 if (err == -ENOENT)
2ec600d6 5380 break;
bba95fef 5381 if (err)
3b85875a 5382 goto out_err;
2ec600d6 5383
15e47304 5384 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 5385 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5386 wdev->netdev, dst, next_hop,
bba95fef
JB		 5387 &pinfo) < 0)
5388 goto out;
2ec600d6 5389
bba95fef 5390 path_idx++;
2ec600d6 5391 }
2ec600d6 5392
bba95fef 5393 out:
97990a06 5394 cb->args[2] = path_idx;
bba95fef 5395 err = skb->len;
bba95fef 5396 out_err:
ea90e0dc 5397 rtnl_unlock();
bba95fef 5398 return err;
2ec600d6
LCC		 5399}
5400
5401static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
5402{
4c476991 5403 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 5404 int err;
4c476991 5405 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5406 struct mpath_info pinfo;
5407 struct sk_buff *msg;
5408 u8 *dst = NULL;
5409 u8 next_hop[ETH_ALEN];
5410
5411 memset(&pinfo, 0, sizeof(pinfo));
5412
5413 if (!info->attrs[NL80211_ATTR_MAC])
5414 return -EINVAL;
5415
5416 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5417
4c476991
JB		 5418 if (!rdev->ops->get_mpath)
5419 return -EOPNOTSUPP;
2ec600d6 5420
4c476991
JB		 5421 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5422 return -EOPNOTSUPP;
eec60b03 5423
e35e4d28 5424 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 5425 if (err)
4c476991 5426 return err;
2ec600d6 5427
fd2120ca 5428 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 5429 if (!msg)
4c476991 5430 return -ENOMEM;
2ec600d6 5431
15e47304 5432 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 5433 dev, dst, next_hop, &pinfo) < 0) {
5434 nlmsg_free(msg);
5435 return -ENOBUFS;
5436 }
3b85875a 5437
4c476991 5438 return genlmsg_reply(msg, info);
2ec600d6
LCC		 5439}
5440
5441static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
5442{
4c476991
JB		 5443 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5444 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5445 u8 *dst = NULL;
5446 u8 *next_hop = NULL;
5447
5448 if (!info->attrs[NL80211_ATTR_MAC])
5449 return -EINVAL;
5450
5451 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5452 return -EINVAL;
5453
5454 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5455 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5456
4c476991
JB		 5457 if (!rdev->ops->change_mpath)
5458 return -EOPNOTSUPP;
35a8efe1 5459
4c476991
JB		 5460 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5461 return -EOPNOTSUPP;
2ec600d6 5462
e35e4d28 5463 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 5464}
4c476991 5465
2ec600d6
LCC		 5466static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
5467{
4c476991
JB		 5468 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5469 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5470 u8 *dst = NULL;
5471 u8 *next_hop = NULL;
5472
5473 if (!info->attrs[NL80211_ATTR_MAC])
5474 return -EINVAL;
5475
5476 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5477 return -EINVAL;
5478
5479 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5480 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5481
4c476991
JB		 5482 if (!rdev->ops->add_mpath)
5483 return -EOPNOTSUPP;
35a8efe1 5484
4c476991
JB		 5485 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5486 return -EOPNOTSUPP;
2ec600d6 5487
e35e4d28 5488 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 5489}
5490
5491static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
5492{
4c476991
JB		 5493 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5494 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5495 u8 *dst = NULL;
5496
5497 if (info->attrs[NL80211_ATTR_MAC])
5498 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5499
4c476991
JB		 5500 if (!rdev->ops->del_mpath)
5501 return -EOPNOTSUPP;
3b85875a 5502
e35e4d28 5503 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 5504}
5505
66be7d2b
HR		 5506static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
5507{
5508 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5509 int err;
5510 struct net_device *dev = info->user_ptr[1];
5511 struct mpath_info pinfo;
5512 struct sk_buff *msg;
5513 u8 *dst = NULL;
5514 u8 mpp[ETH_ALEN];
5515
5516 memset(&pinfo, 0, sizeof(pinfo));
5517
5518 if (!info->attrs[NL80211_ATTR_MAC])
5519 return -EINVAL;
5520
5521 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5522
5523 if (!rdev->ops->get_mpp)
5524 return -EOPNOTSUPP;
5525
5526 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5527 return -EOPNOTSUPP;
5528
5529 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5530 if (err)
5531 return err;
5532
5533 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5534 if (!msg)
5535 return -ENOMEM;
5536
5537 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5538 dev, dst, mpp, &pinfo) < 0) {
5539 nlmsg_free(msg);
5540 return -ENOBUFS;
5541 }
5542
5543 return genlmsg_reply(msg, info);
5544}
5545
5546static int nl80211_dump_mpp(struct sk_buff *skb,
5547 struct netlink_callback *cb)
5548{
5549 struct mpath_info pinfo;
5550 struct cfg80211_registered_device *rdev;
5551 struct wireless_dev *wdev;
5552 u8 dst[ETH_ALEN];
5553 u8 mpp[ETH_ALEN];
5554 int path_idx = cb->args[2];
5555 int err;
5556
ea90e0dc 5557 rtnl_lock();
66be7d2b
HR		 5558 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5559 if (err)
ea90e0dc 5560 goto out_err;
66be7d2b
HR		 5561
5562 if (!rdev->ops->dump_mpp) {
5563 err = -EOPNOTSUPP;
5564 goto out_err;
5565 }
5566
5567 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5568 err = -EOPNOTSUPP;
5569 goto out_err;
5570 }
5571
5572 while (1) {
5573 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5574 mpp, &pinfo);
5575 if (err == -ENOENT)
5576 break;
5577 if (err)
5578 goto out_err;
5579
5580 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5581 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5582 wdev->netdev, dst, mpp,
5583 &pinfo) < 0)
5584 goto out;
5585
5586 path_idx++;
5587 }
5588
5589 out:
5590 cb->args[2] = path_idx;
5591 err = skb->len;
5592 out_err:
ea90e0dc 5593 rtnl_unlock();
66be7d2b
HR		 5594 return err;
5595}
5596
9f1ba906
JM		 5597static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5598{
4c476991
JB		 5599 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5600 struct net_device *dev = info->user_ptr[1];
c56589ed 5601 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 5602 struct bss_parameters params;
c56589ed 5603 int err;
9f1ba906
JM		 5604
5605 memset(&params, 0, sizeof(params));
5606 /* default to not changing parameters */
5607 params.use_cts_prot = -1;
5608 params.use_short_preamble = -1;
5609 params.use_short_slot_time = -1;
fd8aaaf3 5610 params.ap_isolate = -1;
50b12f59 5611 params.ht_opmode = -1;
53cabad7
JB		 5612 params.p2p_ctwindow = -1;
5613 params.p2p_opp_ps = -1;
9f1ba906
JM		 5614
5615 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5616 params.use_cts_prot =
5617 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5618 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5619 params.use_short_preamble =
5620 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5621 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5622 params.use_short_slot_time =
5623 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 5624 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5625 params.basic_rates =
5626 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5627 params.basic_rates_len =
5628 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5629 }
fd8aaaf3
FF		 5630 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5631 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 5632 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5633 params.ht_opmode =
5634 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 5635
53cabad7
JB		 5636 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5637 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5638 return -EINVAL;
5639 params.p2p_ctwindow =
5640 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5641 if (params.p2p_ctwindow < 0)
5642 return -EINVAL;
5643 if (params.p2p_ctwindow != 0 &&
5644 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5645 return -EINVAL;
5646 }
5647
5648 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5649 u8 tmp;
5650
5651 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5652 return -EINVAL;
5653 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5654 if (tmp > 1)
5655 return -EINVAL;
5656 params.p2p_opp_ps = tmp;
5657 if (params.p2p_opp_ps &&
5658 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5659 return -EINVAL;
5660 }
5661
4c476991
JB		 5662 if (!rdev->ops->change_bss)
5663 return -EOPNOTSUPP;
9f1ba906 5664
074ac8df 5665 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5666 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5667 return -EOPNOTSUPP;
3b85875a 5668
c56589ed
SW		 5669 wdev_lock(wdev);
5670 err = rdev_change_bss(rdev, dev, &params);
5671 wdev_unlock(wdev);
5672
5673 return err;
9f1ba906
JM		 5674}
5675
b2e1b302
LR		 5676static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5677{
b2e1b302 5678 char *data = NULL;
05050753 5679 bool is_indoor;
57b5ce07 5680 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5681 u32 owner_nlportid;
5682
80778f18
LR		 5683 /*
5684 * You should only get this when cfg80211 hasn't yet initialized
5685 * completely when built-in to the kernel right between the time
5686 * window between nl80211_init() and regulatory_init(), if that is
5687 * even possible.
5688 */
458f4f9e 5689 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5690 return -EINPROGRESS;
80778f18 5691
57b5ce07
LR		 5692 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5693 user_reg_hint_type =
5694 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5695 else
5696 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5697
5698 switch (user_reg_hint_type) {
5699 case NL80211_USER_REG_HINT_USER:
5700 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5701 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5702 return -EINVAL;
5703
5704 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5705 return regulatory_hint_user(data, user_reg_hint_type);
5706 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5707 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5708 owner_nlportid = info->snd_portid;
5709 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5710 } else {
5711 owner_nlportid = 0;
5712 is_indoor = true;
5713 }
5714
5715 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5716 default:
5717 return -EINVAL;
5718 }
b2e1b302
LR		 5719}
5720
1ea4ff3e
JB		 5721static int nl80211_reload_regdb(struct sk_buff *skb, struct genl_info *info)
5722{
5723 return reg_reload_regdb();
5724}
5725
24bdd9f4 5726static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5727 struct genl_info *info)
93da9cc1 5728{
4c476991 5729 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5730 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5731 struct wireless_dev *wdev = dev->ieee80211_ptr;
5732 struct mesh_config cur_params;
5733 int err = 0;
93da9cc1 5734 void *hdr;
5735 struct nlattr *pinfoattr;
5736 struct sk_buff *msg;
5737
29cbe68c
JB		 5738 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5739 return -EOPNOTSUPP;
5740
24bdd9f4 5741 if (!rdev->ops->get_mesh_config)
4c476991 5742 return -EOPNOTSUPP;
f3f92586 5743
29cbe68c
JB		 5744 wdev_lock(wdev);
5745 /* If not connected, get default parameters */
5746 if (!wdev->mesh_id_len)
5747 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5748 else
e35e4d28 5749 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5750 wdev_unlock(wdev);
5751
93da9cc1 5752 if (err)
4c476991 5753 return err;
93da9cc1 5754
5755 /* Draw up a netlink message to send back */
fd2120ca 5756 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5757 if (!msg)
5758 return -ENOMEM;
15e47304 5759 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5760 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5761 if (!hdr)
efe1cf0c 5762 goto out;
24bdd9f4 5763 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5764 if (!pinfoattr)
5765 goto nla_put_failure;
9360ffd1
DM		 5766 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5767 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5768 cur_params.dot11MeshRetryTimeout) ||
5769 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5770 cur_params.dot11MeshConfirmTimeout) ||
5771 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5772 cur_params.dot11MeshHoldingTimeout) ||
5773 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5774 cur_params.dot11MeshMaxPeerLinks) ||
5775 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5776 cur_params.dot11MeshMaxRetries) ||
5777 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5778 cur_params.dot11MeshTTL) ||
5779 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5780 cur_params.element_ttl) ||
5781 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5782 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5783 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5784 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5785 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5786 cur_params.dot11MeshHWMPmaxPREQretries) ||
5787 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5788 cur_params.path_refresh_time) ||
5789 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5790 cur_params.min_discovery_timeout) ||
5791 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5792 cur_params.dot11MeshHWMPactivePathTimeout) ||
5793 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5794 cur_params.dot11MeshHWMPpreqMinInterval) ||
5795 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5796 cur_params.dot11MeshHWMPperrMinInterval) ||
5797 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5798 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5799 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5800 cur_params.dot11MeshHWMPRootMode) ||
5801 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5802 cur_params.dot11MeshHWMPRannInterval) ||
5803 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5804 cur_params.dot11MeshGateAnnouncementProtocol) ||
5805 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5806 cur_params.dot11MeshForwarding) ||
335d5349 5807 nla_put_s32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5808 cur_params.rssi_threshold) ||
5809 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5810 cur_params.ht_opmode) ||
5811 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5812 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5813 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5814 cur_params.dot11MeshHWMProotInterval) ||
5815 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5816 cur_params.dot11MeshHWMPconfirmationInterval) ||
5817 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5818 cur_params.power_mode) ||
5819 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5820 cur_params.dot11MeshAwakeWindowDuration) ||
5821 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5822 cur_params.plink_timeout))
9360ffd1 5823 goto nla_put_failure;
93da9cc1 5824 nla_nest_end(msg, pinfoattr);
5825 genlmsg_end(msg, hdr);
4c476991 5826 return genlmsg_reply(msg, info);
93da9cc1 5827
3b85875a 5828 nla_put_failure:
93da9cc1 5829 genlmsg_cancel(msg, hdr);
efe1cf0c 5830 out:
d080e275 5831 nlmsg_free(msg);
4c476991 5832 return -ENOBUFS;
93da9cc1 5833}
5834
b54452b0 5835static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5836 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5837 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5838 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5839 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5840 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5841 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5842 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5843 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5844 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5845 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5846 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5847 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5848 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5849 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5850 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5851 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5852 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5853 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5854 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5855 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5856 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5857 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5858 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5859 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5860 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5861 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5862 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5863 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5864};
5865
c80d545d
JC		 5866static const struct nla_policy
5867 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5868 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5869 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5870 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5871 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5872 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5873 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5874 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5875 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5876 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5877};
5878
f151d9db
AB		 5879static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5880{
5881 u8 val = nla_get_u8(nla);
5882 if (val < min || val > max)
5883 return -EINVAL;
5884 *out = val;
5885 return 0;
5886}
5887
5888static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5889{
5890 u8 val = nla_get_u8(nla);
5891 if (val < min || val > max)
5892 return -EINVAL;
5893 *out = val;
5894 return 0;
5895}
5896
5897static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5898{
5899 u16 val = nla_get_u16(nla);
5900 if (val < min || val > max)
5901 return -EINVAL;
5902 *out = val;
5903 return 0;
5904}
5905
5906static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5907{
5908 u32 val = nla_get_u32(nla);
5909 if (val < min || val > max)
5910 return -EINVAL;
5911 *out = val;
5912 return 0;
5913}
5914
5915static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5916{
5917 s32 val = nla_get_s32(nla);
5918 if (val < min || val > max)
5919 return -EINVAL;
5920 *out = val;
5921 return 0;
5922}
5923
ff9a71af
JB		 5924static int nl80211_check_power_mode(const struct nlattr *nla,
5925 enum nl80211_mesh_power_mode min,
5926 enum nl80211_mesh_power_mode max,
5927 enum nl80211_mesh_power_mode *out)
5928{
5929 u32 val = nla_get_u32(nla);
5930 if (val < min || val > max)
5931 return -EINVAL;
5932 *out = val;
5933 return 0;
5934}
5935
24bdd9f4 5936static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5937 struct mesh_config *cfg,
5938 u32 *mask_out)
93da9cc1 5939{
93da9cc1 5940 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5941 u32 mask = 0;
9757235f 5942 u16 ht_opmode;
93da9cc1 5943
ea54fba2
MP		 5944#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5945do { \
5946 if (tb[attr]) { \
f151d9db 5947 if (fn(tb[attr], min, max, &cfg->param)) \
ea54fba2 5948 return -EINVAL; \
ea54fba2
MP		 5949 mask |= (1 << (attr - 1)); \
5950 } \
5951} while (0)
bd90fdcc 5952
24bdd9f4 5953 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5954 return -EINVAL;
5955 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5956 info->attrs[NL80211_ATTR_MESH_CONFIG],
fe52145f 5957 nl80211_meshconf_params_policy, info->extack))
93da9cc1 5958 return -EINVAL;
5959
93da9cc1 5960 /* This makes sure that there aren't more than 32 mesh config
5961 * parameters (otherwise our bitfield scheme would not work.) */
5962 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5963
5964 /* Fill in the params struct */
ea54fba2 5965 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea 5966 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
f151d9db 5967 nl80211_check_u16);
ea54fba2 5968 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea 5969 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
f151d9db 5970 nl80211_check_u16);
ea54fba2 5971 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea 5972 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
f151d9db 5973 nl80211_check_u16);
ea54fba2 5974 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea 5975 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
f151d9db 5976 nl80211_check_u16);
ea54fba2 5977 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea 5978 mask, NL80211_MESHCONF_MAX_RETRIES,
f151d9db 5979 nl80211_check_u8);
ea54fba2 5980 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
f151d9db 5981 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
ea54fba2 5982 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea 5983 mask, NL80211_MESHCONF_ELEMENT_TTL,
f151d9db 5984 nl80211_check_u8);
ea54fba2 5985 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea 5986 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
f151d9db 5987 nl80211_check_bool);
ea54fba2
MP		 5988 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5989 1, 255, mask,
a4f606ea 5990 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
f151d9db 5991 nl80211_check_u32);
ea54fba2 5992 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea 5993 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
f151d9db 5994 nl80211_check_u8);
ea54fba2 5995 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea 5996 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
f151d9db 5997 nl80211_check_u32);
ea54fba2 5998 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea 5999 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
f151d9db 6000 nl80211_check_u16);
ea54fba2
MP		 6001 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
6002 1, 65535, mask,
a4f606ea 6003 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
f151d9db 6004 nl80211_check_u32);
93da9cc1 6005 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 6006 1, 65535, mask,
6007 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
f151d9db 6008 nl80211_check_u16);
dca7e943 6009 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 6010 1, 65535, mask,
6011 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
f151d9db 6012 nl80211_check_u16);
93da9cc1 6013 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 6014 dot11MeshHWMPnetDiameterTraversalTime,
6015 1, 65535, mask,
a4f606ea 6016 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
f151d9db 6017 nl80211_check_u16);
ea54fba2
MP		 6018 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
6019 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
f151d9db 6020 nl80211_check_u8);
ea54fba2
MP		 6021 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
6022 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
f151d9db 6023 nl80211_check_u16);
63c5723b 6024 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 6025 dot11MeshGateAnnouncementProtocol, 0, 1,
6026 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
f151d9db 6027 nl80211_check_bool);
ea54fba2 6028 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea 6029 mask, NL80211_MESHCONF_FORWARDING,
f151d9db 6030 nl80211_check_bool);
83374fe9 6031 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 6032 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
f151d9db 6033 nl80211_check_s32);
9757235f
MH		 6034 /*
6035 * Check HT operation mode based on
6cc9111f 6036 * IEEE 802.11-2016 9.4.2.57 HT Operation element.
9757235f
MH		 6037 */
6038 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
6039 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
6040
6041 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
6042 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
6043 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
6044 return -EINVAL;
6045
6cc9111f
BC		 6046 /* NON_HT_STA bit is reserved, but some programs set it */
6047 ht_opmode &= ~IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT;
9757235f 6048
9757235f 6049 cfg->ht_opmode = ht_opmode;
fd551bac 6050 mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
9757235f 6051 }
ac1073a6 6052 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 6053 1, 65535, mask,
ac1073a6 6054 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
f151d9db 6055 nl80211_check_u32);
ea54fba2 6056 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 6057 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
f151d9db 6058 nl80211_check_u16);
728b19e5 6059 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 6060 dot11MeshHWMPconfirmationInterval,
6061 1, 65535, mask,
728b19e5 6062 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
f151d9db 6063 nl80211_check_u16);
3b1c5a53
MP		 6064 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
6065 NL80211_MESH_POWER_ACTIVE,
6066 NL80211_MESH_POWER_MAX,
6067 mask, NL80211_MESHCONF_POWER_MODE,
ff9a71af 6068 nl80211_check_power_mode);
3b1c5a53
MP		 6069 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
6070 0, 65535, mask,
f151d9db 6071 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
31f909a2 6072 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538 6073 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
f151d9db 6074 nl80211_check_u32);
bd90fdcc
JB		 6075 if (mask_out)
6076 *mask_out = mask;
c80d545d 6077
bd90fdcc
JB		 6078 return 0;
6079
6080#undef FILL_IN_MESH_PARAM_IF_SET
6081}
6082
c80d545d
JC		 6083static int nl80211_parse_mesh_setup(struct genl_info *info,
6084 struct mesh_setup *setup)
6085{
bb2798d4 6086 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 6087 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
6088
6089 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
6090 return -EINVAL;
6091 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
6092 info->attrs[NL80211_ATTR_MESH_SETUP],
fe52145f 6093 nl80211_mesh_setup_params_policy, info->extack))
c80d545d
JC		 6094 return -EINVAL;
6095
d299a1f2
JC		 6096 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
6097 setup->sync_method =
6098 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
6099 IEEE80211_SYNC_METHOD_VENDOR :
6100 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
6101
c80d545d
JC		 6102 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
6103 setup->path_sel_proto =
6104 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
6105 IEEE80211_PATH_PROTOCOL_VENDOR :
6106 IEEE80211_PATH_PROTOCOL_HWMP;
6107
6108 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
6109 setup->path_metric =
6110 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
6111 IEEE80211_PATH_METRIC_VENDOR :
6112 IEEE80211_PATH_METRIC_AIRTIME;
6113
581a8b0f 6114 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 6115 struct nlattr *ieattr =
581a8b0f 6116 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 6117 if (!is_valid_ie_attr(ieattr))
6118 return -EINVAL;
581a8b0f
JC		 6119 setup->ie = nla_data(ieattr);
6120 setup->ie_len = nla_len(ieattr);
c80d545d 6121 }
bb2798d4
TP		 6122 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
6123 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
6124 return -EINVAL;
6125 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 6126 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
6127 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 6128 if (setup->is_secure)
6129 setup->user_mpm = true;
c80d545d 6130
6e16d90b
CT		 6131 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
6132 if (!setup->user_mpm)
6133 return -EINVAL;
6134 setup->auth_id =
6135 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
6136 }
6137
c80d545d
JC		 6138 return 0;
6139}
6140
24bdd9f4 6141static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 6142 struct genl_info *info)
bd90fdcc
JB		 6143{
6144 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6145 struct net_device *dev = info->user_ptr[1];
29cbe68c 6146 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 6147 struct mesh_config cfg;
6148 u32 mask;
6149 int err;
6150
29cbe68c
JB		 6151 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
6152 return -EOPNOTSUPP;
6153
24bdd9f4 6154 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 6155 return -EOPNOTSUPP;
6156
24bdd9f4 6157 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 6158 if (err)
6159 return err;
6160
29cbe68c
JB		 6161 wdev_lock(wdev);
6162 if (!wdev->mesh_id_len)
6163 err = -ENOLINK;
6164
6165 if (!err)
e35e4d28 6166 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 6167
6168 wdev_unlock(wdev);
6169
6170 return err;
93da9cc1 6171}
6172
ad30ca2c
AN		 6173static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
6174 struct sk_buff *msg)
f130347c 6175{
f130347c
LR		 6176 struct nlattr *nl_reg_rules;
6177 unsigned int i;
f130347c 6178
458f4f9e
JB		 6179 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
6180 (regdom->dfs_region &&
6181 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 6182 goto nla_put_failure;
458f4f9e 6183
f130347c
LR		 6184 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
6185 if (!nl_reg_rules)
ad30ca2c 6186 goto nla_put_failure;
f130347c 6187
458f4f9e 6188 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 6189 struct nlattr *nl_reg_rule;
6190 const struct ieee80211_reg_rule *reg_rule;
6191 const struct ieee80211_freq_range *freq_range;
6192 const struct ieee80211_power_rule *power_rule;
97524820 6193 unsigned int max_bandwidth_khz;
f130347c 6194
458f4f9e 6195 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 6196 freq_range = &reg_rule->freq_range;
6197 power_rule = &reg_rule->power_rule;
6198
6199 nl_reg_rule = nla_nest_start(msg, i);
6200 if (!nl_reg_rule)
ad30ca2c 6201 goto nla_put_failure;
f130347c 6202
97524820
JD		 6203 max_bandwidth_khz = freq_range->max_bandwidth_khz;
6204 if (!max_bandwidth_khz)
6205 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
6206 reg_rule);
6207
9360ffd1
DM		 6208 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
6209 reg_rule->flags) ||
6210 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
6211 freq_range->start_freq_khz) ||
6212 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
6213 freq_range->end_freq_khz) ||
6214 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 6215 max_bandwidth_khz) ||
9360ffd1
DM		 6216 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
6217 power_rule->max_antenna_gain) ||
6218 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 6219 power_rule->max_eirp) ||
6220 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
6221 reg_rule->dfs_cac_ms))
ad30ca2c 6222 goto nla_put_failure;
f130347c
LR		 6223
6224 nla_nest_end(msg, nl_reg_rule);
6225 }
6226
6227 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 6228 return 0;
6229
6230nla_put_failure:
6231 return -EMSGSIZE;
6232}
6233
6234static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
6235{
6236 const struct ieee80211_regdomain *regdom = NULL;
6237 struct cfg80211_registered_device *rdev;
6238 struct wiphy *wiphy = NULL;
6239 struct sk_buff *msg;
6240 void *hdr;
6241
6242 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6243 if (!msg)
6244 return -ENOBUFS;
6245
6246 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6247 NL80211_CMD_GET_REG);
6248 if (!hdr)
6249 goto put_failure;
6250
6251 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 6252 bool self_managed;
6253
ad30ca2c
AN		 6254 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6255 if (IS_ERR(rdev)) {
6256 nlmsg_free(msg);
6257 return PTR_ERR(rdev);
6258 }
6259
6260 wiphy = &rdev->wiphy;
1bdd716c
AN		 6261 self_managed = wiphy->regulatory_flags &
6262 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 6263 regdom = get_wiphy_regdom(wiphy);
6264
1bdd716c
AN		 6265 /* a self-managed-reg device must have a private regdom */
6266 if (WARN_ON(!regdom && self_managed)) {
6267 nlmsg_free(msg);
6268 return -EINVAL;
6269 }
6270
ad30ca2c
AN		 6271 if (regdom &&
6272 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6273 goto nla_put_failure;
6274 }
6275
6276 if (!wiphy && reg_last_request_cell_base() &&
6277 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6278 NL80211_USER_REG_HINT_CELL_BASE))
6279 goto nla_put_failure;
6280
6281 rcu_read_lock();
6282
6283 if (!regdom)
6284 regdom = rcu_dereference(cfg80211_regdomain);
6285
6286 if (nl80211_put_regdom(regdom, msg))
6287 goto nla_put_failure_rcu;
6288
6289 rcu_read_unlock();
f130347c
LR		 6290
6291 genlmsg_end(msg, hdr);
5fe231e8 6292 return genlmsg_reply(msg, info);
f130347c 6293
458f4f9e
JB		 6294nla_put_failure_rcu:
6295 rcu_read_unlock();
f130347c
LR		 6296nla_put_failure:
6297 genlmsg_cancel(msg, hdr);
efe1cf0c 6298put_failure:
d080e275 6299 nlmsg_free(msg);
5fe231e8 6300 return -EMSGSIZE;
f130347c
LR		 6301}
6302
ad30ca2c
AN		 6303static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
6304 u32 seq, int flags, struct wiphy *wiphy,
6305 const struct ieee80211_regdomain *regdom)
6306{
6307 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6308 NL80211_CMD_GET_REG);
6309
6310 if (!hdr)
6311 return -1;
6312
0a833c29 6313 genl_dump_check_consistent(cb, hdr);
ad30ca2c
AN		 6314
6315 if (nl80211_put_regdom(regdom, msg))
6316 goto nla_put_failure;
6317
6318 if (!wiphy && reg_last_request_cell_base() &&
6319 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6320 NL80211_USER_REG_HINT_CELL_BASE))
6321 goto nla_put_failure;
6322
6323 if (wiphy &&
6324 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6325 goto nla_put_failure;
6326
1bdd716c
AN		 6327 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
6328 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
6329 goto nla_put_failure;
6330
053c095a
JB		 6331 genlmsg_end(msg, hdr);
6332 return 0;
ad30ca2c
AN		 6333
6334nla_put_failure:
6335 genlmsg_cancel(msg, hdr);
6336 return -EMSGSIZE;
6337}
6338
6339static int nl80211_get_reg_dump(struct sk_buff *skb,
6340 struct netlink_callback *cb)
6341{
6342 const struct ieee80211_regdomain *regdom = NULL;
6343 struct cfg80211_registered_device *rdev;
6344 int err, reg_idx, start = cb->args[2];
6345
6346 rtnl_lock();
6347
6348 if (cfg80211_regdomain && start == 0) {
6349 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6350 NLM_F_MULTI, NULL,
6351 rtnl_dereference(cfg80211_regdomain));
6352 if (err < 0)
6353 goto out_err;
6354 }
6355
6356 /* the global regdom is idx 0 */
6357 reg_idx = 1;
6358 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
6359 regdom = get_wiphy_regdom(&rdev->wiphy);
6360 if (!regdom)
6361 continue;
6362
6363 if (++reg_idx <= start)
6364 continue;
6365
6366 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6367 NLM_F_MULTI, &rdev->wiphy, regdom);
6368 if (err < 0) {
6369 reg_idx--;
6370 break;
6371 }
6372 }
6373
6374 cb->args[2] = reg_idx;
6375 err = skb->len;
6376out_err:
6377 rtnl_unlock();
6378 return err;
6379}
6380
b6863036
JB		 6381#ifdef CONFIG_CFG80211_CRDA_SUPPORT
6382static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
6383 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6384 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6385 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6386 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6387 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6388 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6389 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
6390};
6391
6392static int parse_reg_rule(struct nlattr *tb[],
6393 struct ieee80211_reg_rule *reg_rule)
6394{
6395 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
6396 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
6397
6398 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
6399 return -EINVAL;
6400 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
6401 return -EINVAL;
6402 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
6403 return -EINVAL;
6404 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6405 return -EINVAL;
6406 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6407 return -EINVAL;
6408
6409 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
6410
6411 freq_range->start_freq_khz =
6412 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
6413 freq_range->end_freq_khz =
6414 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
6415 freq_range->max_bandwidth_khz =
6416 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
6417
6418 power_rule->max_eirp =
6419 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
6420
6421 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
6422 power_rule->max_antenna_gain =
6423 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
6424
6425 if (tb[NL80211_ATTR_DFS_CAC_TIME])
6426 reg_rule->dfs_cac_ms =
6427 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
6428
6429 return 0;
6430}
6431
b2e1b302
LR		 6432static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
6433{
6434 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
6435 struct nlattr *nl_reg_rule;
ea372c54
JB		 6436 char *alpha2;
6437 int rem_reg_rules, r;
b2e1b302 6438 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 6439 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 6440 struct ieee80211_regdomain *rd;
b2e1b302
LR		 6441
6442 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6443 return -EINVAL;
6444
6445 if (!info->attrs[NL80211_ATTR_REG_RULES])
6446 return -EINVAL;
6447
6448 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6449
8b60b078
LR		 6450 if (info->attrs[NL80211_ATTR_DFS_REGION])
6451 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
6452
b2e1b302 6453 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6454 rem_reg_rules) {
b2e1b302
LR		 6455 num_rules++;
6456 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 6457 return -EINVAL;
b2e1b302
LR		 6458 }
6459
e438768f
LR		 6460 if (!reg_is_valid_request(alpha2))
6461 return -EINVAL;
6462
b2e1b302 6463 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 6464 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 6465
6466 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 6467 if (!rd)
6468 return -ENOMEM;
b2e1b302
LR		 6469
6470 rd->n_reg_rules = num_rules;
6471 rd->alpha2[0] = alpha2[0];
6472 rd->alpha2[1] = alpha2[1];
6473
8b60b078
LR		 6474 /*
6475 * Disable DFS master mode if the DFS region was
6476 * not supported or known on this kernel.
6477 */
6478 if (reg_supported_dfs_region(dfs_region))
6479 rd->dfs_region = dfs_region;
6480
b2e1b302 6481 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6482 rem_reg_rules) {
bfe2c7b1 6483 r = nla_parse_nested(tb, NL80211_REG_RULE_ATTR_MAX,
fe52145f
JB		 6484 nl_reg_rule, reg_rule_policy,
6485 info->extack);
ae811e21
JB		 6486 if (r)
6487 goto bad_reg;
b2e1b302
LR		 6488 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
6489 if (r)
6490 goto bad_reg;
6491
6492 rule_idx++;
6493
d0e18f83
LR		 6494 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
6495 r = -EINVAL;
b2e1b302 6496 goto bad_reg;
d0e18f83 6497 }
b2e1b302
LR		 6498 }
6499
06627990
JB		 6500 /* set_regdom takes ownership of rd */
6501 return set_regdom(rd, REGD_SOURCE_CRDA);
d2372b31 6502 bad_reg:
b2e1b302 6503 kfree(rd);
d0e18f83 6504 return r;
b2e1b302 6505}
b6863036 6506#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 6507
83f5e2cf
JB		 6508static int validate_scan_freqs(struct nlattr *freqs)
6509{
6510 struct nlattr *attr1, *attr2;
6511 int n_channels = 0, tmp1, tmp2;
6512
d7f13f74
SD		 6513 nla_for_each_nested(attr1, freqs, tmp1)
6514 if (nla_len(attr1) != sizeof(u32))
6515 return 0;
6516
83f5e2cf
JB		 6517 nla_for_each_nested(attr1, freqs, tmp1) {
6518 n_channels++;
6519 /*
6520 * Some hardware has a limited channel list for
6521 * scanning, and it is pretty much nonsensical
6522 * to scan for a channel twice, so disallow that
6523 * and don't require drivers to check that the
6524 * channel list they get isn't longer than what
6525 * they can scan, as long as they can scan all
6526 * the channels they registered at once.
6527 */
6528 nla_for_each_nested(attr2, freqs, tmp2)
6529 if (attr1 != attr2 &&
6530 nla_get_u32(attr1) == nla_get_u32(attr2))
6531 return 0;
6532 }
6533
6534 return n_channels;
6535}
6536
57fbcce3 6537static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
38de03d2 6538{
57fbcce3 6539 return b < NUM_NL80211_BANDS && wiphy->bands[b];
38de03d2
AS		 6540}
6541
6542static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6543 struct cfg80211_bss_selection *bss_select)
6544{
6545 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6546 struct nlattr *nest;
6547 int err;
6548 bool found = false;
6549 int i;
6550
6551 /* only process one nested attribute */
6552 nest = nla_data(nla);
6553 if (!nla_ok(nest, nla_len(nest)))
6554 return -EINVAL;
6555
bfe2c7b1 6556 err = nla_parse_nested(attr, NL80211_BSS_SELECT_ATTR_MAX, nest,
fceb6435 6557 nl80211_bss_select_policy, NULL);
38de03d2
AS		 6558 if (err)
6559 return err;
6560
6561 /* only one attribute may be given */
6562 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6563 if (attr[i]) {
6564 if (found)
6565 return -EINVAL;
6566 found = true;
6567 }
6568 }
6569
6570 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6571
6572 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6573 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6574
6575 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6576 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6577 bss_select->param.band_pref =
6578 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6579 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6580 return -EINVAL;
6581 }
6582
6583 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6584 struct nl80211_bss_select_rssi_adjust *adj_param;
6585
6586 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6587 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6588 bss_select->param.adjust.band = adj_param->band;
6589 bss_select->param.adjust.delta = adj_param->delta;
6590 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6591 return -EINVAL;
6592 }
6593
6594 /* user-space did not provide behaviour attribute */
6595 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6596 return -EINVAL;
6597
6598 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6599 return -EINVAL;
6600
6601 return 0;
6602}
6603
ad2b26ab
JB		 6604static int nl80211_parse_random_mac(struct nlattr **attrs,
6605 u8 *mac_addr, u8 *mac_addr_mask)
6606{
6607 int i;
6608
6609 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 6610 eth_zero_addr(mac_addr);
6611 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 6612 mac_addr[0] = 0x2;
6613 mac_addr_mask[0] = 0x3;
6614
6615 return 0;
6616 }
6617
6618 /* need both or none */
6619 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6620 return -EINVAL;
6621
6622 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6623 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6624
6625 /* don't allow or configure an mcast address */
6626 if (!is_multicast_ether_addr(mac_addr_mask) ||
6627 is_multicast_ether_addr(mac_addr))
6628 return -EINVAL;
6629
6630 /*
6631 * allow users to pass a MAC address that has bits set outside
6632 * of the mask, but don't bother drivers with having to deal
6633 * with such bits
6634 */
6635 for (i = 0; i < ETH_ALEN; i++)
6636 mac_addr[i] &= mac_addr_mask[i];
6637
6638 return 0;
6639}
6640
34373d12
VT		 6641static bool cfg80211_off_channel_oper_allowed(struct wireless_dev *wdev)
6642{
6643 ASSERT_WDEV_LOCK(wdev);
6644
6645 if (!cfg80211_beaconing_iface_active(wdev))
6646 return true;
6647
6648 if (!(wdev->chandef.chan->flags & IEEE80211_CHAN_RADAR))
6649 return true;
6650
6651 return regulatory_pre_cac_allowed(wdev->wiphy);
6652}
6653
2d23d073
RZ		 6654static int
6655nl80211_check_scan_flags(struct wiphy *wiphy, struct wireless_dev *wdev,
6656 void *request, struct nlattr **attrs,
6657 bool is_sched_scan)
6658{
6659 u8 *mac_addr, *mac_addr_mask;
6660 u32 *flags;
6661 enum nl80211_feature_flags randomness_flag;
6662
6663 if (!attrs[NL80211_ATTR_SCAN_FLAGS])
6664 return 0;
6665
6666 if (is_sched_scan) {
6667 struct cfg80211_sched_scan_request *req = request;
6668
6669 randomness_flag = wdev ?
6670 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR :
6671 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6672 flags = &req->flags;
6673 mac_addr = req->mac_addr;
6674 mac_addr_mask = req->mac_addr_mask;
6675 } else {
6676 struct cfg80211_scan_request *req = request;
6677
6678 randomness_flag = NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
6679 flags = &req->flags;
6680 mac_addr = req->mac_addr;
6681 mac_addr_mask = req->mac_addr_mask;
6682 }
6683
6684 *flags = nla_get_u32(attrs[NL80211_ATTR_SCAN_FLAGS]);
6685
6686 if ((*flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6687 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN))
6688 return -EOPNOTSUPP;
6689
6690 if (*flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6691 int err;
6692
6693 if (!(wiphy->features & randomness_flag) ||
6694 (wdev && wdev->current_bss))
6695 return -EOPNOTSUPP;
6696
6697 err = nl80211_parse_random_mac(attrs, mac_addr, mac_addr_mask);
6698 if (err)
6699 return err;
6700 }
6701
6702 if ((*flags & NL80211_SCAN_FLAG_FILS_MAX_CHANNEL_TIME) &&
6703 !wiphy_ext_feature_isset(wiphy,
6704 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME))
6705 return -EOPNOTSUPP;
6706
6707 if ((*flags & NL80211_SCAN_FLAG_ACCEPT_BCAST_PROBE_RESP) &&
6708 !wiphy_ext_feature_isset(wiphy,
6709 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP))
6710 return -EOPNOTSUPP;
6711
6712 if ((*flags & NL80211_SCAN_FLAG_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION) &&
6713 !wiphy_ext_feature_isset(wiphy,
6714 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION))
6715 return -EOPNOTSUPP;
6716
6717 if ((*flags & NL80211_SCAN_FLAG_OCE_PROBE_REQ_HIGH_TX_RATE) &&
6718 !wiphy_ext_feature_isset(wiphy,
6719 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE))
6720 return -EOPNOTSUPP;
6721
6722 return 0;
6723}
6724
2a519311
JB		 6725static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6726{
4c476991 6727 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 6728 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 6729 struct cfg80211_scan_request *request;
2a519311
JB		 6730 struct nlattr *attr;
6731 struct wiphy *wiphy;
83f5e2cf 6732 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 6733 size_t ie_len;
2a519311 6734
f4a11bb0
JB		 6735 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6736 return -EINVAL;
6737
79c97e97 6738 wiphy = &rdev->wiphy;
2a519311 6739
cb3b7d87
AB		 6740 if (wdev->iftype == NL80211_IFTYPE_NAN)
6741 return -EOPNOTSUPP;
6742
4c476991
JB		 6743 if (!rdev->ops->scan)
6744 return -EOPNOTSUPP;
2a519311 6745
f9d15d16 6746 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 6747 err = -EBUSY;
6748 goto unlock;
6749 }
2a519311
JB		 6750
6751 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 6752 n_channels = validate_scan_freqs(
6753 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 6754 if (!n_channels) {
6755 err = -EINVAL;
6756 goto unlock;
6757 }
2a519311 6758 } else {
bdfbec2d 6759 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 6760 }
6761
6762 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6763 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6764 n_ssids++;
6765
f9f47529
JB		 6766 if (n_ssids > wiphy->max_scan_ssids) {
6767 err = -EINVAL;
6768 goto unlock;
6769 }
2a519311 6770
70692ad2
JM		 6771 if (info->attrs[NL80211_ATTR_IE])
6772 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6773 else
6774 ie_len = 0;
6775
f9f47529
JB		 6776 if (ie_len > wiphy->max_scan_ie_len) {
6777 err = -EINVAL;
6778 goto unlock;
6779 }
18a83659 6780
2a519311 6781 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 6782 + sizeof(*request->ssids) * n_ssids
6783 + sizeof(*request->channels) * n_channels
70692ad2 6784 + ie_len, GFP_KERNEL);
f9f47529
JB		 6785 if (!request) {
6786 err = -ENOMEM;
6787 goto unlock;
6788 }
2a519311 6789
2a519311 6790 if (n_ssids)
5ba63533 6791 request->ssids = (void *)&request->channels[n_channels];
2a519311 6792 request->n_ssids = n_ssids;
70692ad2 6793 if (ie_len) {
13874e4b 6794 if (n_ssids)
70692ad2
JM		 6795 request->ie = (void *)(request->ssids + n_ssids);
6796 else
6797 request->ie = (void *)(request->channels + n_channels);
6798 }
2a519311 6799
584991dc 6800 i = 0;
2a519311
JB		 6801 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6802 /* user specified, bail out if channel not found */
2a519311 6803 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6804 struct ieee80211_channel *chan;
6805
6806 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6807
6808 if (!chan) {
2a519311
JB		 6809 err = -EINVAL;
6810 goto out_free;
6811 }
584991dc
JB		 6812
6813 /* ignore disabled channels */
6814 if (chan->flags & IEEE80211_CHAN_DISABLED)
6815 continue;
6816
6817 request->channels[i] = chan;
2a519311
JB		 6818 i++;
6819 }
6820 } else {
57fbcce3 6821 enum nl80211_band band;
34850ab2 6822
2a519311 6823 /* all channels */
57fbcce3 6824 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2a519311 6825 int j;
7a087e74 6826
2a519311
JB		 6827 if (!wiphy->bands[band])
6828 continue;
6829 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6830 struct ieee80211_channel *chan;
6831
6832 chan = &wiphy->bands[band]->channels[j];
6833
6834 if (chan->flags & IEEE80211_CHAN_DISABLED)
6835 continue;
6836
6837 request->channels[i] = chan;
2a519311
JB		 6838 i++;
6839 }
6840 }
6841 }
6842
584991dc
JB		 6843 if (!i) {
6844 err = -EINVAL;
6845 goto out_free;
6846 }
6847
6848 request->n_channels = i;
6849
34373d12
VT		 6850 wdev_lock(wdev);
6851 if (!cfg80211_off_channel_oper_allowed(wdev)) {
6852 struct ieee80211_channel *chan;
6853
6854 if (request->n_channels != 1) {
6855 wdev_unlock(wdev);
6856 err = -EBUSY;
6857 goto out_free;
6858 }
6859
6860 chan = request->channels[0];
6861 if (chan->center_freq != wdev->chandef.chan->center_freq) {
6862 wdev_unlock(wdev);
6863 err = -EBUSY;
6864 goto out_free;
6865 }
6866 }
6867 wdev_unlock(wdev);
6868
2a519311 6869 i = 0;
13874e4b 6870 if (n_ssids) {
2a519311 6871 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6872 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6873 err = -EINVAL;
6874 goto out_free;
6875 }
57a27e1d 6876 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6877 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6878 i++;
6879 }
6880 }
6881
70692ad2
JM		 6882 if (info->attrs[NL80211_ATTR_IE]) {
6883 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6884 memcpy((void *)request->ie,
6885 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6886 request->ie_len);
6887 }
6888
57fbcce3 6889 for (i = 0; i < NUM_NL80211_BANDS; i++)
a401d2bb
JB		 6890 if (wiphy->bands[i])
6891 request->rates[i] =
6892 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6893
6894 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6895 nla_for_each_nested(attr,
6896 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6897 tmp) {
57fbcce3 6898 enum nl80211_band band = nla_type(attr);
34850ab2 6899
57fbcce3 6900 if (band < 0 || band >= NUM_NL80211_BANDS) {
34850ab2
JB		 6901 err = -EINVAL;
6902 goto out_free;
6903 }
1b09cd82
FF		 6904
6905 if (!wiphy->bands[band])
6906 continue;
6907
34850ab2
JB		 6908 err = ieee80211_get_ratemask(wiphy->bands[band],
6909 nla_data(attr),
6910 nla_len(attr),
6911 &request->rates[band]);
6912 if (err)
6913 goto out_free;
6914 }
6915 }
6916
1d76250b
AS		 6917 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6918 if (!wiphy_ext_feature_isset(wiphy,
6919 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6920 err = -EOPNOTSUPP;
6921 goto out_free;
6922 }
6923
6924 request->duration =
6925 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6926 request->duration_mandatory =
6927 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6928 }
6929
2d23d073
RZ		 6930 err = nl80211_check_scan_flags(wiphy, wdev, request, info->attrs,
6931 false);
6932 if (err)
6933 goto out_free;
ed473771 6934
e9f935e3
RM		 6935 request->no_cck =
6936 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6937
2fa436b3
VK		 6938 /* Initial implementation used NL80211_ATTR_MAC to set the specific
6939 * BSSID to scan for. This was problematic because that same attribute
6940 * was already used for another purpose (local random MAC address). The
6941 * NL80211_ATTR_BSSID attribute was added to fix this. For backwards
6942 * compatibility with older userspace components, also use the
6943 * NL80211_ATTR_MAC value here if it can be determined to be used for
6944 * the specific BSSID use case instead of the random MAC address
6945 * (NL80211_ATTR_SCAN_FLAGS is used to enable random MAC address use).
6946 */
6947 if (info->attrs[NL80211_ATTR_BSSID])
6948 memcpy(request->bssid,
6949 nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN);
6950 else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) &&
6951 info->attrs[NL80211_ATTR_MAC])
818965d3
JM		 6952 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6953 ETH_ALEN);
6954 else
6955 eth_broadcast_addr(request->bssid);
6956
fd014284 6957 request->wdev = wdev;
79c97e97 6958 request->wiphy = &rdev->wiphy;
15d6030b 6959 request->scan_start = jiffies;
2a519311 6960
79c97e97 6961 rdev->scan_req = request;
e35e4d28 6962 err = rdev_scan(rdev, request);
2a519311 6963
463d0183 6964 if (!err) {
fd014284
JB		 6965 nl80211_send_scan_start(rdev, wdev);
6966 if (wdev->netdev)
6967 dev_hold(wdev->netdev);
4c476991 6968 } else {
2a519311 6969 out_free:
79c97e97 6970 rdev->scan_req = NULL;
2a519311
JB		 6971 kfree(request);
6972 }
3b85875a 6973
f9f47529 6974 unlock:
2a519311
JB		 6975 return err;
6976}
6977
91d3ab46
VK		 6978static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6979{
6980 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6981 struct wireless_dev *wdev = info->user_ptr[1];
6982
6983 if (!rdev->ops->abort_scan)
6984 return -EOPNOTSUPP;
6985
6986 if (rdev->scan_msg)
6987 return 0;
6988
6989 if (!rdev->scan_req)
6990 return -ENOENT;
6991
6992 rdev_abort_scan(rdev, wdev);
6993 return 0;
6994}
6995
3b06d277
AS		 6996static int
6997nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6998 struct cfg80211_sched_scan_request *request,
6999 struct nlattr **attrs)
7000{
7001 int tmp, err, i = 0;
7002 struct nlattr *attr;
7003
7004 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
7005 u32 interval;
7006
7007 /*
7008 * If scan plans are not specified,
5a88de53 7009 * %NL80211_ATTR_SCHED_SCAN_INTERVAL will be specified. In this
3b06d277
AS		 7010 * case one scan plan will be set with the specified scan
7011 * interval and infinite number of iterations.
7012 */
3b06d277
AS		 7013 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
7014 if (!interval)
7015 return -EINVAL;
7016
7017 request->scan_plans[0].interval =
7018 DIV_ROUND_UP(interval, MSEC_PER_SEC);
7019 if (!request->scan_plans[0].interval)
7020 return -EINVAL;
7021
7022 if (request->scan_plans[0].interval >
7023 wiphy->max_sched_scan_plan_interval)
7024 request->scan_plans[0].interval =
7025 wiphy->max_sched_scan_plan_interval;
7026
7027 return 0;
7028 }
7029
7030 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
7031 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
7032
7033 if (WARN_ON(i >= n_plans))
7034 return -EINVAL;
7035
bfe2c7b1 7036 err = nla_parse_nested(plan, NL80211_SCHED_SCAN_PLAN_MAX,
fceb6435 7037 attr, nl80211_plan_policy, NULL);
3b06d277
AS		 7038 if (err)
7039 return err;
7040
7041 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
7042 return -EINVAL;
7043
7044 request->scan_plans[i].interval =
7045 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
7046 if (!request->scan_plans[i].interval ||
7047 request->scan_plans[i].interval >
7048 wiphy->max_sched_scan_plan_interval)
7049 return -EINVAL;
7050
7051 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
7052 request->scan_plans[i].iterations =
7053 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
7054 if (!request->scan_plans[i].iterations ||
7055 (request->scan_plans[i].iterations >
7056 wiphy->max_sched_scan_plan_iterations))
7057 return -EINVAL;
7058 } else if (i < n_plans - 1) {
7059 /*
7060 * All scan plans but the last one must specify
7061 * a finite number of iterations
7062 */
7063 return -EINVAL;
7064 }
7065
7066 i++;
7067 }
7068
7069 /*
7070 * The last scan plan must not specify the number of
7071 * iterations, it is supposed to run infinitely
7072 */
7073 if (request->scan_plans[n_plans - 1].iterations)
7074 return -EINVAL;
7075
7076 return 0;
7077}
7078
256da02d 7079static struct cfg80211_sched_scan_request *
ad2b26ab 7080nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
aad1e812 7081 struct nlattr **attrs, int max_match_sets)
807f8a8c
LC		 7082{
7083 struct cfg80211_sched_scan_request *request;
807f8a8c 7084 struct nlattr *attr;
3b06d277 7085 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
57fbcce3 7086 enum nl80211_band band;
807f8a8c 7087 size_t ie_len;
a1f1c21c 7088 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 7089 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 7090
256da02d
LC		 7091 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
7092 return ERR_PTR(-EINVAL);
807f8a8c 7093
256da02d 7094 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 7095 n_channels = validate_scan_freqs(
256da02d 7096 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 7097 if (!n_channels)
256da02d 7098 return ERR_PTR(-EINVAL);
807f8a8c 7099 } else {
bdfbec2d 7100 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 7101 }
7102
256da02d
LC		 7103 if (attrs[NL80211_ATTR_SCAN_SSIDS])
7104 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 7105 tmp)
7106 n_ssids++;
7107
93b6aa69 7108 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 7109 return ERR_PTR(-EINVAL);
807f8a8c 7110
ea73cbce
JB		 7111 /*
7112 * First, count the number of 'real' matchsets. Due to an issue with
7113 * the old implementation, matchsets containing only the RSSI attribute
7114 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
7115 * RSSI for all matchsets, rather than their own matchset for reporting
7116 * all APs with a strong RSSI. This is needed to be compatible with
7117 * older userspace that treated a matchset with only the RSSI as the
7118 * global RSSI for all other matchsets - if there are other matchsets.
7119 */
256da02d 7120 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 7121 nla_for_each_nested(attr,
256da02d 7122 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 7123 tmp) {
7124 struct nlattr *rssi;
7125
bfe2c7b1
JB		 7126 err = nla_parse_nested(tb,
7127 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
fceb6435
JB		 7128 attr, nl80211_match_policy,
7129 NULL);
ea73cbce 7130 if (err)
256da02d 7131 return ERR_PTR(err);
3007e352
AVS		 7132
7133 /* SSID and BSSID are mutually exclusive */
7134 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] &&
7135 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID])
7136 return ERR_PTR(-EINVAL);
7137
ea73cbce 7138 /* add other standalone attributes here */
3007e352
AVS		 7139 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] ||
7140 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID]) {
ea73cbce
JB		 7141 n_match_sets++;
7142 continue;
7143 }
7144 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7145 if (rssi)
7146 default_match_rssi = nla_get_s32(rssi);
7147 }
7148 }
7149
7150 /* However, if there's no other matchset, add the RSSI one */
7151 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
7152 n_match_sets = 1;
a1f1c21c 7153
aad1e812 7154 if (n_match_sets > max_match_sets)
256da02d 7155 return ERR_PTR(-EINVAL);
a1f1c21c 7156
256da02d
LC		 7157 if (attrs[NL80211_ATTR_IE])
7158 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 7159 else
7160 ie_len = 0;
7161
5a865bad 7162 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 7163 return ERR_PTR(-EINVAL);
c10841ca 7164
3b06d277
AS		 7165 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
7166 /*
7167 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
7168 * each scan plan already specifies its own interval
7169 */
7170 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7171 return ERR_PTR(-EINVAL);
7172
7173 nla_for_each_nested(attr,
7174 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
7175 n_plans++;
7176 } else {
7177 /*
7178 * The scan interval attribute is kept for backward
7179 * compatibility. If no scan plans are specified and sched scan
7180 * interval is specified, one scan plan will be set with this
7181 * scan interval and infinite number of iterations.
7182 */
7183 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7184 return ERR_PTR(-EINVAL);
7185
7186 n_plans = 1;
7187 }
7188
7189 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
7190 return ERR_PTR(-EINVAL);
7191
bf95ecdb 7192 if (!wiphy_ext_feature_isset(
7193 wiphy, NL80211_EXT_FEATURE_SCHED_SCAN_RELATIVE_RSSI) &&
7194 (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] ||
7195 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]))
7196 return ERR_PTR(-EINVAL);
7197
807f8a8c 7198 request = kzalloc(sizeof(*request)
a2cd43c5 7199 + sizeof(*request->ssids) * n_ssids
a1f1c21c 7200 + sizeof(*request->match_sets) * n_match_sets
3b06d277 7201 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 7202 + sizeof(*request->channels) * n_channels
807f8a8c 7203 + ie_len, GFP_KERNEL);
256da02d
LC		 7204 if (!request)
7205 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 7206
7207 if (n_ssids)
7208 request->ssids = (void *)&request->channels[n_channels];
7209 request->n_ssids = n_ssids;
7210 if (ie_len) {
13874e4b 7211 if (n_ssids)
807f8a8c
LC		 7212 request->ie = (void *)(request->ssids + n_ssids);
7213 else
7214 request->ie = (void *)(request->channels + n_channels);
7215 }
7216
a1f1c21c
LC		 7217 if (n_match_sets) {
7218 if (request->ie)
7219 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 7220 else if (n_ssids)
a1f1c21c
LC		 7221 request->match_sets =
7222 (void *)(request->ssids + n_ssids);
7223 else
7224 request->match_sets =
7225 (void *)(request->channels + n_channels);
7226 }
7227 request->n_match_sets = n_match_sets;
7228
3b06d277
AS		 7229 if (n_match_sets)
7230 request->scan_plans = (void *)(request->match_sets +
7231 n_match_sets);
7232 else if (request->ie)
7233 request->scan_plans = (void *)(request->ie + ie_len);
7234 else if (n_ssids)
7235 request->scan_plans = (void *)(request->ssids + n_ssids);
7236 else
7237 request->scan_plans = (void *)(request->channels + n_channels);
7238
7239 request->n_scan_plans = n_plans;
7240
807f8a8c 7241 i = 0;
256da02d 7242 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 7243 /* user specified, bail out if channel not found */
7244 nla_for_each_nested(attr,
256da02d 7245 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 7246 tmp) {
7247 struct ieee80211_channel *chan;
7248
7249 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
7250
7251 if (!chan) {
7252 err = -EINVAL;
7253 goto out_free;
7254 }
7255
7256 /* ignore disabled channels */
7257 if (chan->flags & IEEE80211_CHAN_DISABLED)
7258 continue;
7259
7260 request->channels[i] = chan;
7261 i++;
7262 }
7263 } else {
7264 /* all channels */
57fbcce3 7265 for (band = 0; band < NUM_NL80211_BANDS; band++) {
807f8a8c 7266 int j;
7a087e74 7267
807f8a8c
LC		 7268 if (!wiphy->bands[band])
7269 continue;
7270 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
7271 struct ieee80211_channel *chan;
7272
7273 chan = &wiphy->bands[band]->channels[j];
7274
7275 if (chan->flags & IEEE80211_CHAN_DISABLED)
7276 continue;
7277
7278 request->channels[i] = chan;
7279 i++;
7280 }
7281 }
7282 }
7283
7284 if (!i) {
7285 err = -EINVAL;
7286 goto out_free;
7287 }
7288
7289 request->n_channels = i;
7290
7291 i = 0;
13874e4b 7292 if (n_ssids) {
256da02d 7293 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 7294 tmp) {
57a27e1d 7295 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 7296 err = -EINVAL;
7297 goto out_free;
7298 }
57a27e1d 7299 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 7300 memcpy(request->ssids[i].ssid, nla_data(attr),
7301 nla_len(attr));
807f8a8c
LC		 7302 i++;
7303 }
7304 }
7305
a1f1c21c 7306 i = 0;
256da02d 7307 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 7308 nla_for_each_nested(attr,
256da02d 7309 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 7310 tmp) {
3007e352 7311 struct nlattr *ssid, *bssid, *rssi;
a1f1c21c 7312
bfe2c7b1
JB		 7313 err = nla_parse_nested(tb,
7314 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
fceb6435
JB		 7315 attr, nl80211_match_policy,
7316 NULL);
ae811e21
JB		 7317 if (err)
7318 goto out_free;
4a4ab0d7 7319 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
3007e352
AVS		 7320 bssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID];
7321 if (ssid || bssid) {
ea73cbce
JB		 7322 if (WARN_ON(i >= n_match_sets)) {
7323 /* this indicates a programming error,
7324 * the loop above should have verified
7325 * things properly
7326 */
7327 err = -EINVAL;
7328 goto out_free;
7329 }
7330
3007e352
AVS		 7331 if (ssid) {
7332 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
7333 err = -EINVAL;
7334 goto out_free;
7335 }
7336 memcpy(request->match_sets[i].ssid.ssid,
7337 nla_data(ssid), nla_len(ssid));
7338 request->match_sets[i].ssid.ssid_len =
7339 nla_len(ssid);
7340 }
7341 if (bssid) {
7342 if (nla_len(bssid) != ETH_ALEN) {
7343 err = -EINVAL;
7344 goto out_free;
7345 }
7346 memcpy(request->match_sets[i].bssid,
7347 nla_data(bssid), ETH_ALEN);
a1f1c21c 7348 }
3007e352 7349
56ab364f 7350 /* special attribute - old implementation w/a */
ea73cbce
JB		 7351 request->match_sets[i].rssi_thold =
7352 default_match_rssi;
7353 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7354 if (rssi)
7355 request->match_sets[i].rssi_thold =
7356 nla_get_s32(rssi);
a1f1c21c
LC		 7357 }
7358 i++;
7359 }
ea73cbce
JB		 7360
7361 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 7362 if (i == 0 && n_match_sets)
ea73cbce
JB		 7363 request->match_sets[0].rssi_thold = default_match_rssi;
7364
7365 request->min_rssi_thold = INT_MAX;
7366 for (i = 0; i < n_match_sets; i++)
7367 request->min_rssi_thold =
7368 min(request->match_sets[i].rssi_thold,
7369 request->min_rssi_thold);
7370 } else {
7371 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 7372 }
7373
9900e484
JB		 7374 if (ie_len) {
7375 request->ie_len = ie_len;
807f8a8c 7376 memcpy((void *)request->ie,
256da02d 7377 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 7378 request->ie_len);
7379 }
7380
2d23d073
RZ		 7381 err = nl80211_check_scan_flags(wiphy, wdev, request, attrs, true);
7382 if (err)
7383 goto out_free;
ed473771 7384
9c748934
LC		 7385 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
7386 request->delay =
7387 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
7388
bf95ecdb 7389 if (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]) {
7390 request->relative_rssi = nla_get_s8(
7391 attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]);
7392 request->relative_rssi_set = true;
7393 }
7394
7395 if (request->relative_rssi_set &&
7396 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]) {
7397 struct nl80211_bss_select_rssi_adjust *rssi_adjust;
7398
7399 rssi_adjust = nla_data(
7400 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]);
7401 request->rssi_adjust.band = rssi_adjust->band;
7402 request->rssi_adjust.delta = rssi_adjust->delta;
7403 if (!is_band_valid(wiphy, request->rssi_adjust.band)) {
7404 err = -EINVAL;
7405 goto out_free;
7406 }
7407 }
7408
3b06d277
AS		 7409 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
7410 if (err)
7411 goto out_free;
7412
15d6030b 7413 request->scan_start = jiffies;
807f8a8c 7414
256da02d 7415 return request;
807f8a8c
LC		 7416
7417out_free:
7418 kfree(request);
256da02d
LC		 7419 return ERR_PTR(err);
7420}
7421
7422static int nl80211_start_sched_scan(struct sk_buff *skb,
7423 struct genl_info *info)
7424{
7425 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7426 struct net_device *dev = info->user_ptr[1];
ad2b26ab 7427 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 7428 struct cfg80211_sched_scan_request *sched_scan_req;
ca986ad9 7429 bool want_multi;
256da02d
LC		 7430 int err;
7431
ca986ad9 7432 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_start)
256da02d
LC		 7433 return -EOPNOTSUPP;
7434
ca986ad9
AVS		 7435 want_multi = info->attrs[NL80211_ATTR_SCHED_SCAN_MULTI];
7436 err = cfg80211_sched_scan_req_possible(rdev, want_multi);
7437 if (err)
7438 return err;
256da02d 7439
31a60ed1 7440 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
aad1e812
AVS		 7441 info->attrs,
7442 rdev->wiphy.max_match_sets);
31a60ed1
JR		 7443
7444 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 7445 if (err)
7446 goto out_err;
7447
ca986ad9
AVS		 7448 /* leave request id zero for legacy request
7449 * or if driver does not support multi-scheduled scan
7450 */
7451 if (want_multi && rdev->wiphy.max_sched_scan_reqs > 1) {
7452 while (!sched_scan_req->reqid)
7453 sched_scan_req->reqid = rdev->wiphy.cookie_counter++;
7454 }
7455
31a60ed1 7456 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 7457 if (err)
7458 goto out_free;
7459
31a60ed1
JR		 7460 sched_scan_req->dev = dev;
7461 sched_scan_req->wiphy = &rdev->wiphy;
7462
93a1e86c
JR		 7463 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
7464 sched_scan_req->owner_nlportid = info->snd_portid;
7465
ca986ad9 7466 cfg80211_add_sched_scan_req(rdev, sched_scan_req);
256da02d 7467
96b08fd6 7468 nl80211_send_sched_scan(sched_scan_req, NL80211_CMD_START_SCHED_SCAN);
256da02d
LC		 7469 return 0;
7470
7471out_free:
31a60ed1 7472 kfree(sched_scan_req);
256da02d 7473out_err:
807f8a8c
LC		 7474 return err;
7475}
7476
7477static int nl80211_stop_sched_scan(struct sk_buff *skb,
7478 struct genl_info *info)
7479{
ca986ad9 7480 struct cfg80211_sched_scan_request *req;
807f8a8c 7481 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ca986ad9 7482 u64 cookie;
807f8a8c 7483
ca986ad9 7484 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_stop)
807f8a8c
LC		 7485 return -EOPNOTSUPP;
7486
ca986ad9
AVS		 7487 if (info->attrs[NL80211_ATTR_COOKIE]) {
7488 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7489 return __cfg80211_stop_sched_scan(rdev, cookie, false);
7490 }
7491
7492 req = list_first_or_null_rcu(&rdev->sched_scan_req_list,
7493 struct cfg80211_sched_scan_request,
7494 list);
7495 if (!req || req->reqid ||
7496 (req->owner_nlportid &&
7497 req->owner_nlportid != info->snd_portid))
7498 return -ENOENT;
7499
7500 return cfg80211_stop_sched_scan_req(rdev, req, false);
807f8a8c
LC		 7501}
7502
04f39047
SW		 7503static int nl80211_start_radar_detection(struct sk_buff *skb,
7504 struct genl_info *info)
7505{
7506 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7507 struct net_device *dev = info->user_ptr[1];
7508 struct wireless_dev *wdev = dev->ieee80211_ptr;
7509 struct cfg80211_chan_def chandef;
55f7435c 7510 enum nl80211_dfs_regions dfs_region;
31559f35 7511 unsigned int cac_time_ms;
04f39047
SW		 7512 int err;
7513
55f7435c
LR		 7514 dfs_region = reg_get_dfs_region(wdev->wiphy);
7515 if (dfs_region == NL80211_DFS_UNSET)
7516 return -EINVAL;
7517
04f39047
SW		 7518 err = nl80211_parse_chandef(rdev, info, &chandef);
7519 if (err)
7520 return err;
7521
ff311bc1
SW		 7522 if (netif_carrier_ok(dev))
7523 return -EBUSY;
7524
04f39047
SW		 7525 if (wdev->cac_started)
7526 return -EBUSY;
7527
2beb6dab 7528 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 7529 wdev->iftype);
04f39047
SW		 7530 if (err < 0)
7531 return err;
7532
7533 if (err == 0)
7534 return -EINVAL;
7535
fe7c3a1f 7536 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 7537 return -EINVAL;
7538
7539 if (!rdev->ops->start_radar_detection)
7540 return -EOPNOTSUPP;
7541
31559f35
JD		 7542 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
7543 if (WARN_ON(!cac_time_ms))
7544 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
7545
a1056b1b 7546 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 7547 if (!err) {
9e0e2961 7548 wdev->chandef = chandef;
04f39047
SW		 7549 wdev->cac_started = true;
7550 wdev->cac_start_time = jiffies;
31559f35 7551 wdev->cac_time_ms = cac_time_ms;
04f39047 7552 }
04f39047
SW		 7553 return err;
7554}
7555
16ef1fe2
SW		 7556static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
7557{
7558 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7559 struct net_device *dev = info->user_ptr[1];
7560 struct wireless_dev *wdev = dev->ieee80211_ptr;
7561 struct cfg80211_csa_settings params;
7562 /* csa_attrs is defined static to avoid waste of stack size - this
7563 * function is called under RTNL lock, so this should not be a problem.
7564 */
7565 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 7566 int err;
ee4bc9e7 7567 bool need_new_beacon = false;
8d9de16f 7568 bool need_handle_dfs_flag = true;
9a774c78 7569 int len, i;
252e07ca 7570 u32 cs_count;
16ef1fe2
SW		 7571
7572 if (!rdev->ops->channel_switch ||
7573 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
7574 return -EOPNOTSUPP;
7575
ee4bc9e7
SW		 7576 switch (dev->ieee80211_ptr->iftype) {
7577 case NL80211_IFTYPE_AP:
7578 case NL80211_IFTYPE_P2P_GO:
7579 need_new_beacon = true;
8d9de16f
BB		 7580 /* For all modes except AP the handle_dfs flag needs to be
7581 * supplied to tell the kernel that userspace will handle radar
7582 * events when they happen. Otherwise a switch to a channel
7583 * requiring DFS will be rejected.
7584 */
7585 need_handle_dfs_flag = false;
ee4bc9e7
SW		 7586
7587 /* useless if AP is not running */
7588 if (!wdev->beacon_interval)
1ff79dfa 7589 return -ENOTCONN;
ee4bc9e7
SW		 7590 break;
7591 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 7592 if (!wdev->ssid_len)
7593 return -ENOTCONN;
7594 break;
c6da674a 7595 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 7596 if (!wdev->mesh_id_len)
7597 return -ENOTCONN;
ee4bc9e7
SW		 7598 break;
7599 default:
16ef1fe2 7600 return -EOPNOTSUPP;
ee4bc9e7 7601 }
16ef1fe2
SW		 7602
7603 memset(&params, 0, sizeof(params));
7604
7605 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7606 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
7607 return -EINVAL;
7608
7609 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 7610 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 7611 return -EINVAL;
7612
252e07ca
LC		 7613 /* Even though the attribute is u32, the specification says
7614 * u8, so let's make sure we don't overflow.
7615 */
7616 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
7617 if (cs_count > 255)
7618 return -EINVAL;
7619
7620 params.count = cs_count;
16ef1fe2 7621
ee4bc9e7
SW		 7622 if (!need_new_beacon)
7623 goto skip_beacons;
7624
16ef1fe2
SW		 7625 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
7626 if (err)
7627 return err;
7628
7629 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
7630 info->attrs[NL80211_ATTR_CSA_IES],
fe52145f 7631 nl80211_policy, info->extack);
16ef1fe2
SW		 7632 if (err)
7633 return err;
7634
7635 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
7636 if (err)
7637 return err;
7638
7639 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
7640 return -EINVAL;
7641
9a774c78
AO		 7642 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7643 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7644 return -EINVAL;
7645
9a774c78
AO		 7646 params.n_counter_offsets_beacon = len / sizeof(u16);
7647 if (rdev->wiphy.max_num_csa_counters &&
7648 (params.n_counter_offsets_beacon >
7649 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 7650 return -EINVAL;
7651
9a774c78
AO		 7652 params.counter_offsets_beacon =
7653 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7654
7655 /* sanity checks - counters should fit and be the same */
7656 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7657 u16 offset = params.counter_offsets_beacon[i];
7658
7659 if (offset >= params.beacon_csa.tail_len)
7660 return -EINVAL;
7661
7662 if (params.beacon_csa.tail[offset] != params.count)
7663 return -EINVAL;
7664 }
7665
16ef1fe2 7666 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 7667 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7668 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7669 return -EINVAL;
7670
9a774c78
AO		 7671 params.n_counter_offsets_presp = len / sizeof(u16);
7672 if (rdev->wiphy.max_num_csa_counters &&
ad5987b4 7673 (params.n_counter_offsets_presp >
9a774c78 7674 rdev->wiphy.max_num_csa_counters))
16ef1fe2 7675 return -EINVAL;
9a774c78
AO		 7676
7677 params.counter_offsets_presp =
7678 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7679
7680 /* sanity checks - counters should fit and be the same */
7681 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7682 u16 offset = params.counter_offsets_presp[i];
7683
7684 if (offset >= params.beacon_csa.probe_resp_len)
7685 return -EINVAL;
7686
7687 if (params.beacon_csa.probe_resp[offset] !=
7688 params.count)
7689 return -EINVAL;
7690 }
16ef1fe2
SW		 7691 }
7692
ee4bc9e7 7693skip_beacons:
16ef1fe2
SW		 7694 err = nl80211_parse_chandef(rdev, info, &params.chandef);
7695 if (err)
7696 return err;
7697
923b352f
AN		 7698 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
7699 wdev->iftype))
16ef1fe2
SW		 7700 return -EINVAL;
7701
2beb6dab
LC		 7702 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7703 &params.chandef,
7704 wdev->iftype);
7705 if (err < 0)
7706 return err;
7707
8d9de16f 7708 if (err > 0) {
2beb6dab 7709 params.radar_required = true;
8d9de16f
BB		 7710 if (need_handle_dfs_flag &&
7711 !nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS])) {
7712 return -EINVAL;
7713 }
7714 }
16ef1fe2 7715
16ef1fe2
SW		 7716 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7717 params.block_tx = true;
7718
c56589ed
SW		 7719 wdev_lock(wdev);
7720 err = rdev_channel_switch(rdev, dev, &params);
7721 wdev_unlock(wdev);
7722
7723 return err;
16ef1fe2
SW		 7724}
7725
9720bb3a
JB		 7726static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7727 u32 seq, int flags,
2a519311 7728 struct cfg80211_registered_device *rdev,
48ab905d
JB		 7729 struct wireless_dev *wdev,
7730 struct cfg80211_internal_bss *intbss)
2a519311 7731{
48ab905d 7732 struct cfg80211_bss *res = &intbss->pub;
9caf0364 7733 const struct cfg80211_bss_ies *ies;
2a519311
JB		 7734 void *hdr;
7735 struct nlattr *bss;
48ab905d
JB		 7736
7737 ASSERT_WDEV_LOCK(wdev);
2a519311 7738
15e47304 7739 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 7740 NL80211_CMD_NEW_SCAN_RESULTS);
7741 if (!hdr)
7742 return -1;
7743
0a833c29 7744 genl_dump_check_consistent(cb, hdr);
9720bb3a 7745
97990a06
JB		 7746 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7747 goto nla_put_failure;
7748 if (wdev->netdev &&
9360ffd1
DM		 7749 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7750 goto nla_put_failure;
2dad624e
ND		 7751 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7752 NL80211_ATTR_PAD))
97990a06 7753 goto nla_put_failure;
2a519311
JB		 7754
7755 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7756 if (!bss)
7757 goto nla_put_failure;
9360ffd1 7758 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 7759 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 7760 goto nla_put_failure;
9caf0364
JB		 7761
7762 rcu_read_lock();
0e227084
JB		 7763 /* indicate whether we have probe response data or not */
7764 if (rcu_access_pointer(res->proberesp_ies) &&
7765 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7766 goto fail_unlock_rcu;
7767
7768 /* this pointer prefers to be pointed to probe response data
7769 * but is always valid
7770 */
9caf0364 7771 ies = rcu_dereference(res->ies);
8cef2c9d 7772 if (ies) {
2dad624e
ND		 7773 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7774 NL80211_BSS_PAD))
8cef2c9d 7775 goto fail_unlock_rcu;
8cef2c9d
JB		 7776 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7777 ies->len, ies->data))
7778 goto fail_unlock_rcu;
9caf0364 7779 }
0e227084
JB		 7780
7781 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 7782 ies = rcu_dereference(res->beacon_ies);
0e227084 7783 if (ies && ies->from_beacon) {
2dad624e
ND		 7784 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7785 NL80211_BSS_PAD))
8cef2c9d
JB		 7786 goto fail_unlock_rcu;
7787 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7788 ies->len, ies->data))
7789 goto fail_unlock_rcu;
9caf0364
JB		 7790 }
7791 rcu_read_unlock();
7792
9360ffd1
DM		 7793 if (res->beacon_interval &&
7794 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7795 goto nla_put_failure;
7796 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7797 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 7798 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 7799 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7800 jiffies_to_msecs(jiffies - intbss->ts)))
7801 goto nla_put_failure;
2a519311 7802
1d76250b
AS		 7803 if (intbss->parent_tsf &&
7804 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7805 intbss->parent_tsf, NL80211_BSS_PAD) ||
7806 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7807 intbss->parent_bssid)))
7808 goto nla_put_failure;
7809
6e19bc4b 7810 if (intbss->ts_boottime &&
2dad624e
ND		 7811 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7812 intbss->ts_boottime, NL80211_BSS_PAD))
6e19bc4b
DS		 7813 goto nla_put_failure;
7814
77965c97 7815 switch (rdev->wiphy.signal_type) {
2a519311 7816 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 7817 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7818 goto nla_put_failure;
2a519311
JB		 7819 break;
7820 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 7821 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7822 goto nla_put_failure;
2a519311
JB		 7823 break;
7824 default:
7825 break;
7826 }
7827
48ab905d 7828 switch (wdev->iftype) {
074ac8df 7829 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 7830 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 7831 if (intbss == wdev->current_bss &&
7832 nla_put_u32(msg, NL80211_BSS_STATUS,
7833 NL80211_BSS_STATUS_ASSOCIATED))
7834 goto nla_put_failure;
48ab905d
JB		 7835 break;
7836 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 7837 if (intbss == wdev->current_bss &&
7838 nla_put_u32(msg, NL80211_BSS_STATUS,
7839 NL80211_BSS_STATUS_IBSS_JOINED))
7840 goto nla_put_failure;
48ab905d
JB		 7841 break;
7842 default:
7843 break;
7844 }
7845
2a519311
JB		 7846 nla_nest_end(msg, bss);
7847
053c095a
JB		 7848 genlmsg_end(msg, hdr);
7849 return 0;
2a519311 7850
8cef2c9d
JB		 7851 fail_unlock_rcu:
7852 rcu_read_unlock();
2a519311
JB		 7853 nla_put_failure:
7854 genlmsg_cancel(msg, hdr);
7855 return -EMSGSIZE;
7856}
7857
97990a06 7858static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 7859{
48ab905d 7860 struct cfg80211_registered_device *rdev;
2a519311 7861 struct cfg80211_internal_bss *scan;
48ab905d 7862 struct wireless_dev *wdev;
97990a06 7863 int start = cb->args[2], idx = 0;
2a519311
JB		 7864 int err;
7865
ea90e0dc 7866 rtnl_lock();
97990a06 7867 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
ea90e0dc
JB		 7868 if (err) {
7869 rtnl_unlock();
67748893 7870 return err;
ea90e0dc 7871 }
2a519311 7872
48ab905d
JB		 7873 wdev_lock(wdev);
7874 spin_lock_bh(&rdev->bss_lock);
7875 cfg80211_bss_expire(rdev);
7876
9720bb3a
JB		 7877 cb->seq = rdev->bss_generation;
7878
48ab905d 7879 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 7880 if (++idx <= start)
7881 continue;
9720bb3a 7882 if (nl80211_send_bss(skb, cb,
2a519311 7883 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 7884 rdev, wdev, scan) < 0) {
2a519311 7885 idx--;
67748893 7886 break;
2a519311
JB		 7887 }
7888 }
7889
48ab905d
JB		 7890 spin_unlock_bh(&rdev->bss_lock);
7891 wdev_unlock(wdev);
2a519311 7892
97990a06 7893 cb->args[2] = idx;
ea90e0dc 7894 rtnl_unlock();
2a519311 7895
67748893 7896 return skb->len;
2a519311
JB		 7897}
7898
15e47304 7899static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7900 int flags, struct net_device *dev,
7901 bool allow_radio_stats,
7902 struct survey_info *survey)
61fa713c
HS		 7903{
7904 void *hdr;
7905 struct nlattr *infoattr;
7906
11f78ac3
JB		 7907 /* skip radio stats if userspace didn't request them */
7908 if (!survey->channel && !allow_radio_stats)
7909 return 0;
7910
15e47304 7911 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7912 NL80211_CMD_NEW_SURVEY_RESULTS);
7913 if (!hdr)
7914 return -ENOMEM;
7915
9360ffd1
DM		 7916 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7917 goto nla_put_failure;
61fa713c
HS		 7918
7919 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7920 if (!infoattr)
7921 goto nla_put_failure;
7922
11f78ac3
JB		 7923 if (survey->channel &&
7924 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7925 survey->channel->center_freq))
7926 goto nla_put_failure;
7927
7928 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7929 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7930 goto nla_put_failure;
7931 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7932 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7933 goto nla_put_failure;
4ed20beb 7934 if ((survey->filled & SURVEY_INFO_TIME) &&
2dad624e
ND		 7935 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7936 survey->time, NL80211_SURVEY_INFO_PAD))
9360ffd1 7937 goto nla_put_failure;
4ed20beb 7938 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
2dad624e
ND		 7939 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7940 survey->time_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7941 goto nla_put_failure;
4ed20beb 7942 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
2dad624e
ND		 7943 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7944 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7945 goto nla_put_failure;
4ed20beb 7946 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
2dad624e
ND		 7947 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7948 survey->time_rx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7949 goto nla_put_failure;
4ed20beb 7950 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
2dad624e
ND		 7951 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7952 survey->time_tx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7953 goto nla_put_failure;
052536ab 7954 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
2dad624e
ND		 7955 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7956 survey->time_scan, NL80211_SURVEY_INFO_PAD))
052536ab 7957 goto nla_put_failure;
61fa713c
HS		 7958
7959 nla_nest_end(msg, infoattr);
7960
053c095a
JB		 7961 genlmsg_end(msg, hdr);
7962 return 0;
61fa713c
HS		 7963
7964 nla_put_failure:
7965 genlmsg_cancel(msg, hdr);
7966 return -EMSGSIZE;
7967}
7968
11f78ac3 7969static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c 7970{
c90c39da 7971 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
61fa713c 7972 struct survey_info survey;
1b8ec87a 7973 struct cfg80211_registered_device *rdev;
97990a06
JB		 7974 struct wireless_dev *wdev;
7975 int survey_idx = cb->args[2];
61fa713c 7976 int res;
11f78ac3 7977 bool radio_stats;
61fa713c 7978
ea90e0dc 7979 rtnl_lock();
1b8ec87a 7980 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893 7981 if (res)
ea90e0dc 7982 goto out_err;
61fa713c 7983
11f78ac3 7984 /* prepare_wdev_dump parsed the attributes */
c90c39da 7985 radio_stats = attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
11f78ac3 7986
97990a06
JB		 7987 if (!wdev->netdev) {
7988 res = -EINVAL;
7989 goto out_err;
7990 }
7991
1b8ec87a 7992 if (!rdev->ops->dump_survey) {
61fa713c
HS		 7993 res = -EOPNOTSUPP;
7994 goto out_err;
7995 }
7996
7997 while (1) {
1b8ec87a 7998 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 7999 if (res == -ENOENT)
8000 break;
8001 if (res)
8002 goto out_err;
8003
11f78ac3
JB		 8004 /* don't send disabled channels, but do send non-channel data */
8005 if (survey.channel &&
8006 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 8007 survey_idx++;
8008 continue;
8009 }
8010
61fa713c 8011 if (nl80211_send_survey(skb,
15e47304 8012 NETLINK_CB(cb->skb).portid,
61fa713c 8013 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 8014 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 8015 goto out;
8016 survey_idx++;
8017 }
8018
8019 out:
97990a06 8020 cb->args[2] = survey_idx;
61fa713c
HS		 8021 res = skb->len;
8022 out_err:
ea90e0dc 8023 rtnl_unlock();
61fa713c
HS		 8024 return res;
8025}
8026
b23aa676
SO		 8027static bool nl80211_valid_wpa_versions(u32 wpa_versions)
8028{
8029 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
8030 NL80211_WPA_VERSION_2));
8031}
8032
636a5d36
JM		 8033static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
8034{
4c476991
JB		 8035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8036 struct net_device *dev = info->user_ptr[1];
19957bb3 8037 struct ieee80211_channel *chan;
11b6b5a4
JM		 8038 const u8 *bssid, *ssid, *ie = NULL, *auth_data = NULL;
8039 int err, ssid_len, ie_len = 0, auth_data_len = 0;
19957bb3 8040 enum nl80211_auth_type auth_type;
fffd0934 8041 struct key_parse key;
d5cdfacb 8042 bool local_state_change;
636a5d36 8043
f4a11bb0
JB		 8044 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8045 return -EINVAL;
8046
8047 if (!info->attrs[NL80211_ATTR_MAC])
8048 return -EINVAL;
8049
1778092e
JM		 8050 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
8051 return -EINVAL;
8052
19957bb3
JB		 8053 if (!info->attrs[NL80211_ATTR_SSID])
8054 return -EINVAL;
8055
8056 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8057 return -EINVAL;
8058
fffd0934
JB		 8059 err = nl80211_parse_key(info, &key);
8060 if (err)
8061 return err;
8062
8063 if (key.idx >= 0) {
e31b8213
JB		 8064 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
8065 return -EINVAL;
fffd0934
JB		 8066 if (!key.p.key || !key.p.key_len)
8067 return -EINVAL;
8068 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
8069 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
8070 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
8071 key.p.key_len != WLAN_KEY_LEN_WEP104))
8072 return -EINVAL;
b6b5555b 8073 if (key.idx > 3)
fffd0934
JB		 8074 return -EINVAL;
8075 } else {
8076 key.p.key_len = 0;
8077 key.p.key = NULL;
8078 }
8079
afea0b7a
JB		 8080 if (key.idx >= 0) {
8081 int i;
8082 bool ok = false;
7a087e74 8083
afea0b7a
JB		 8084 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
8085 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
8086 ok = true;
8087 break;
8088 }
8089 }
4c476991
JB		 8090 if (!ok)
8091 return -EINVAL;
afea0b7a
JB		 8092 }
8093
4c476991
JB		 8094 if (!rdev->ops->auth)
8095 return -EOPNOTSUPP;
636a5d36 8096
074ac8df 8097 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8098 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8099 return -EOPNOTSUPP;
eec60b03 8100
19957bb3 8101 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 8102 chan = nl80211_get_valid_chan(&rdev->wiphy,
8103 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8104 if (!chan)
4c476991 8105 return -EINVAL;
636a5d36 8106
19957bb3
JB		 8107 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8108 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 8109
8110 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8111 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8112 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8113 }
8114
19957bb3 8115 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 8116 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 8117 return -EINVAL;
636a5d36 8118
63181060
JM		 8119 if ((auth_type == NL80211_AUTHTYPE_SAE ||
8120 auth_type == NL80211_AUTHTYPE_FILS_SK ||
8121 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
8122 auth_type == NL80211_AUTHTYPE_FILS_PK) &&
11b6b5a4 8123 !info->attrs[NL80211_ATTR_AUTH_DATA])
e39e5b5e
JM		 8124 return -EINVAL;
8125
11b6b5a4 8126 if (info->attrs[NL80211_ATTR_AUTH_DATA]) {
63181060
JM		 8127 if (auth_type != NL80211_AUTHTYPE_SAE &&
8128 auth_type != NL80211_AUTHTYPE_FILS_SK &&
8129 auth_type != NL80211_AUTHTYPE_FILS_SK_PFS &&
8130 auth_type != NL80211_AUTHTYPE_FILS_PK)
e39e5b5e 8131 return -EINVAL;
11b6b5a4
JM		 8132 auth_data = nla_data(info->attrs[NL80211_ATTR_AUTH_DATA]);
8133 auth_data_len = nla_len(info->attrs[NL80211_ATTR_AUTH_DATA]);
e39e5b5e 8134 /* need to include at least Auth Transaction and Status Code */
11b6b5a4 8135 if (auth_data_len < 4)
e39e5b5e
JM		 8136 return -EINVAL;
8137 }
8138
d5cdfacb
JM		 8139 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8140
95de817b
JB		 8141 /*
8142 * Since we no longer track auth state, ignore
8143 * requests to only change local state.
8144 */
8145 if (local_state_change)
8146 return 0;
8147
91bf9b26
JB		 8148 wdev_lock(dev->ieee80211_ptr);
8149 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
8150 ssid, ssid_len, ie, ie_len,
8151 key.p.key, key.p.key_len, key.idx,
11b6b5a4 8152 auth_data, auth_data_len);
91bf9b26
JB		 8153 wdev_unlock(dev->ieee80211_ptr);
8154 return err;
636a5d36
JM		 8155}
8156
c0692b8f
JB		 8157static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
8158 struct genl_info *info,
3dc27d25
JB		 8159 struct cfg80211_crypto_settings *settings,
8160 int cipher_limit)
b23aa676 8161{
c0b2bbd8
JB		 8162 memset(settings, 0, sizeof(*settings));
8163
b23aa676
SO		 8164 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
8165
c0692b8f
JB		 8166 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
8167 u16 proto;
7a087e74 8168
c0692b8f
JB		 8169 proto = nla_get_u16(
8170 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
8171 settings->control_port_ethertype = cpu_to_be16(proto);
8172 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
8173 proto != ETH_P_PAE)
8174 return -EINVAL;
8175 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
8176 settings->control_port_no_encrypt = true;
8177 } else
8178 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
8179
b23aa676
SO		 8180 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
8181 void *data;
8182 int len, i;
8183
8184 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8185 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8186 settings->n_ciphers_pairwise = len / sizeof(u32);
8187
8188 if (len % sizeof(u32))
8189 return -EINVAL;
8190
3dc27d25 8191 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 8192 return -EINVAL;
8193
8194 memcpy(settings->ciphers_pairwise, data, len);
8195
8196 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 8197 if (!cfg80211_supported_cipher_suite(
8198 &rdev->wiphy,
b23aa676
SO		 8199 settings->ciphers_pairwise[i]))
8200 return -EINVAL;
8201 }
8202
8203 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
8204 settings->cipher_group =
8205 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 8206 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
8207 settings->cipher_group))
b23aa676
SO		 8208 return -EINVAL;
8209 }
8210
8211 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
8212 settings->wpa_versions =
8213 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
8214 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
8215 return -EINVAL;
8216 }
8217
8218 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
8219 void *data;
6d30240e 8220 int len;
b23aa676
SO		 8221
8222 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
8223 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
8224 settings->n_akm_suites = len / sizeof(u32);
8225
8226 if (len % sizeof(u32))
8227 return -EINVAL;
8228
1b9ca027
JM		 8229 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
8230 return -EINVAL;
8231
b23aa676 8232 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 8233 }
8234
91b5ab62
EP		 8235 if (info->attrs[NL80211_ATTR_PMK]) {
8236 if (nla_len(info->attrs[NL80211_ATTR_PMK]) != WLAN_PMK_LEN)
8237 return -EINVAL;
8238 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8239 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK))
8240 return -EINVAL;
8241 settings->psk = nla_data(info->attrs[NL80211_ATTR_PMK]);
8242 }
8243
b23aa676
SO		 8244 return 0;
8245}
8246
636a5d36
JM		 8247static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
8248{
4c476991
JB		 8249 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8250 struct net_device *dev = info->user_ptr[1];
f444de05 8251 struct ieee80211_channel *chan;
f62fab73
JB		 8252 struct cfg80211_assoc_request req = {};
8253 const u8 *bssid, *ssid;
8254 int err, ssid_len = 0;
636a5d36 8255
f4a11bb0
JB		 8256 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8257 return -EINVAL;
8258
8259 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 8260 !info->attrs[NL80211_ATTR_SSID] ||
8261 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 8262 return -EINVAL;
8263
4c476991
JB		 8264 if (!rdev->ops->assoc)
8265 return -EOPNOTSUPP;
636a5d36 8266
074ac8df 8267 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8268 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8269 return -EOPNOTSUPP;
eec60b03 8270
19957bb3 8271 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8272
664834de
JM		 8273 chan = nl80211_get_valid_chan(&rdev->wiphy,
8274 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8275 if (!chan)
4c476991 8276 return -EINVAL;
636a5d36 8277
19957bb3
JB		 8278 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8279 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 8280
8281 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 8282 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8283 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8284 }
8285
dc6382ce 8286 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 8287 enum nl80211_mfp mfp =
dc6382ce 8288 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 8289 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 8290 req.use_mfp = true;
4c476991
JB		 8291 else if (mfp != NL80211_MFP_NO)
8292 return -EINVAL;
dc6382ce
JM		 8293 }
8294
3e5d7649 8295 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 8296 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 8297
7e7c8926 8298 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 8299 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 8300
8301 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 8302 memcpy(&req.ht_capa_mask,
8303 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8304 sizeof(req.ht_capa_mask));
7e7c8926
BG		 8305
8306 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 8307 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 8308 return -EINVAL;
f62fab73
JB		 8309 memcpy(&req.ht_capa,
8310 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8311 sizeof(req.ht_capa));
7e7c8926
BG		 8312 }
8313
ee2aca34 8314 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 8315 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 8316
8317 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 8318 memcpy(&req.vht_capa_mask,
8319 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8320 sizeof(req.vht_capa_mask));
ee2aca34
JB		 8321
8322 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 8323 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 8324 return -EINVAL;
f62fab73
JB		 8325 memcpy(&req.vht_capa,
8326 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8327 sizeof(req.vht_capa));
ee2aca34
JB		 8328 }
8329
bab5ab7d 8330 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8331 if (!((rdev->wiphy.features &
8332 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8333 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8334 !wiphy_ext_feature_isset(&rdev->wiphy,
8335 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 8336 return -EINVAL;
8337 req.flags |= ASSOC_REQ_USE_RRM;
8338 }
8339
348bd456
JM		 8340 if (info->attrs[NL80211_ATTR_FILS_KEK]) {
8341 req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
8342 req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
8343 if (!info->attrs[NL80211_ATTR_FILS_NONCES])
8344 return -EINVAL;
8345 req.fils_nonces =
8346 nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
8347 }
8348
f62fab73 8349 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 8350 if (!err) {
8351 wdev_lock(dev->ieee80211_ptr);
bd2522b1 8352
f62fab73
JB		 8353 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
8354 ssid, ssid_len, &req);
bd2522b1
AZ		 8355
8356 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8357 dev->ieee80211_ptr->conn_owner_nlportid =
8358 info->snd_portid;
8359 memcpy(dev->ieee80211_ptr->disconnect_bssid,
8360 bssid, ETH_ALEN);
8361 }
8362
91bf9b26
JB		 8363 wdev_unlock(dev->ieee80211_ptr);
8364 }
636a5d36 8365
636a5d36
JM		 8366 return err;
8367}
8368
8369static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
8370{
4c476991
JB		 8371 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8372 struct net_device *dev = info->user_ptr[1];
19957bb3 8373 const u8 *ie = NULL, *bssid;
91bf9b26 8374 int ie_len = 0, err;
19957bb3 8375 u16 reason_code;
d5cdfacb 8376 bool local_state_change;
636a5d36 8377
f4a11bb0
JB		 8378 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8379 return -EINVAL;
8380
8381 if (!info->attrs[NL80211_ATTR_MAC])
8382 return -EINVAL;
8383
8384 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8385 return -EINVAL;
8386
4c476991
JB		 8387 if (!rdev->ops->deauth)
8388 return -EOPNOTSUPP;
636a5d36 8389
074ac8df 8390 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8391 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8392 return -EOPNOTSUPP;
eec60b03 8393
19957bb3 8394 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8395
19957bb3
JB		 8396 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8397 if (reason_code == 0) {
f4a11bb0 8398 /* Reason Code 0 is reserved */
4c476991 8399 return -EINVAL;
255e737e 8400 }
636a5d36
JM		 8401
8402 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8403 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8404 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8405 }
8406
d5cdfacb
JM		 8407 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8408
91bf9b26
JB		 8409 wdev_lock(dev->ieee80211_ptr);
8410 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
8411 local_state_change);
8412 wdev_unlock(dev->ieee80211_ptr);
8413 return err;
636a5d36
JM		 8414}
8415
8416static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
8417{
4c476991
JB		 8418 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8419 struct net_device *dev = info->user_ptr[1];
19957bb3 8420 const u8 *ie = NULL, *bssid;
91bf9b26 8421 int ie_len = 0, err;
19957bb3 8422 u16 reason_code;
d5cdfacb 8423 bool local_state_change;
636a5d36 8424
f4a11bb0
JB		 8425 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8426 return -EINVAL;
8427
8428 if (!info->attrs[NL80211_ATTR_MAC])
8429 return -EINVAL;
8430
8431 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8432 return -EINVAL;
8433
4c476991
JB		 8434 if (!rdev->ops->disassoc)
8435 return -EOPNOTSUPP;
636a5d36 8436
074ac8df 8437 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8438 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8439 return -EOPNOTSUPP;
eec60b03 8440
19957bb3 8441 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8442
19957bb3
JB		 8443 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8444 if (reason_code == 0) {
f4a11bb0 8445 /* Reason Code 0 is reserved */
4c476991 8446 return -EINVAL;
255e737e 8447 }
636a5d36
JM		 8448
8449 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8450 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8451 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8452 }
8453
d5cdfacb
JM		 8454 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8455
91bf9b26
JB		 8456 wdev_lock(dev->ieee80211_ptr);
8457 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
8458 local_state_change);
8459 wdev_unlock(dev->ieee80211_ptr);
8460 return err;
636a5d36
JM		 8461}
8462
dd5b4cc7
FF		 8463static bool
8464nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
57fbcce3 8465 int mcast_rate[NUM_NL80211_BANDS],
dd5b4cc7
FF		 8466 int rateval)
8467{
8468 struct wiphy *wiphy = &rdev->wiphy;
8469 bool found = false;
8470 int band, i;
8471
57fbcce3 8472 for (band = 0; band < NUM_NL80211_BANDS; band++) {
dd5b4cc7
FF		 8473 struct ieee80211_supported_band *sband;
8474
8475 sband = wiphy->bands[band];
8476 if (!sband)
8477 continue;
8478
8479 for (i = 0; i < sband->n_bitrates; i++) {
8480 if (sband->bitrates[i].bitrate == rateval) {
8481 mcast_rate[band] = i + 1;
8482 found = true;
8483 break;
8484 }
8485 }
8486 }
8487
8488 return found;
8489}
8490
04a773ad
JB		 8491static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
8492{
4c476991
JB		 8493 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8494 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 8495 struct cfg80211_ibss_params ibss;
8496 struct wiphy *wiphy;
fffd0934 8497 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 8498 int err;
8499
8e30bc55
JB		 8500 memset(&ibss, 0, sizeof(ibss));
8501
04a773ad
JB		 8502 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8503 return -EINVAL;
8504
683b6d3b 8505 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 8506 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8507 return -EINVAL;
8508
8e30bc55
JB		 8509 ibss.beacon_interval = 100;
8510
12d20fc9 8511 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8e30bc55
JB		 8512 ibss.beacon_interval =
8513 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9 8514
0c317a02
PK		 8515 err = cfg80211_validate_beacon_int(rdev, NL80211_IFTYPE_ADHOC,
8516 ibss.beacon_interval);
12d20fc9
PK		 8517 if (err)
8518 return err;
8e30bc55 8519
4c476991
JB		 8520 if (!rdev->ops->join_ibss)
8521 return -EOPNOTSUPP;
04a773ad 8522
4c476991
JB		 8523 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8524 return -EOPNOTSUPP;
04a773ad 8525
79c97e97 8526 wiphy = &rdev->wiphy;
04a773ad 8527
39193498 8528 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 8529 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 8530
8531 if (!is_valid_ether_addr(ibss.bssid))
8532 return -EINVAL;
8533 }
04a773ad
JB		 8534 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8535 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8536
8537 if (info->attrs[NL80211_ATTR_IE]) {
8538 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8539 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8540 }
8541
683b6d3b
JB		 8542 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
8543 if (err)
8544 return err;
04a773ad 8545
174e0cd2
IP		 8546 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
8547 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 8548 return -EINVAL;
8549
2f301ab2 8550 switch (ibss.chandef.width) {
bf372645
SW		 8551 case NL80211_CHAN_WIDTH_5:
8552 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 8553 case NL80211_CHAN_WIDTH_20_NOHT:
8554 break;
8555 case NL80211_CHAN_WIDTH_20:
8556 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 8557 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8558 return -EINVAL;
8559 break;
8560 case NL80211_CHAN_WIDTH_80:
8561 case NL80211_CHAN_WIDTH_80P80:
8562 case NL80211_CHAN_WIDTH_160:
8563 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8564 return -EINVAL;
8565 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8566 NL80211_EXT_FEATURE_VHT_IBSS))
8567 return -EINVAL;
8568 break;
2f301ab2 8569 default:
c04d6150 8570 return -EINVAL;
2f301ab2 8571 }
db9c64cf 8572
04a773ad 8573 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 8574 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
8575
fbd2c8dc
TP		 8576 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8577 u8 *rates =
8578 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8579 int n_rates =
8580 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8581 struct ieee80211_supported_band *sband =
683b6d3b 8582 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 8583
34850ab2
JB		 8584 err = ieee80211_get_ratemask(sband, rates, n_rates,
8585 &ibss.basic_rates);
8586 if (err)
8587 return err;
fbd2c8dc 8588 }
dd5b4cc7 8589
803768f5
SW		 8590 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8591 memcpy(&ibss.ht_capa_mask,
8592 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8593 sizeof(ibss.ht_capa_mask));
8594
8595 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8596 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8597 return -EINVAL;
8598 memcpy(&ibss.ht_capa,
8599 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8600 sizeof(ibss.ht_capa));
8601 }
8602
dd5b4cc7
FF		 8603 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8604 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
8605 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8606 return -EINVAL;
fbd2c8dc 8607
4c476991 8608 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 8609 bool no_ht = false;
8610
4c476991 8611 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 8612 info->attrs[NL80211_ATTR_KEYS],
8613 &no_ht);
4c476991
JB		 8614 if (IS_ERR(connkeys))
8615 return PTR_ERR(connkeys);
de7044ee 8616
3d9d1d66
JB		 8617 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
8618 no_ht) {
5e950a78 8619 kzfree(connkeys);
de7044ee
SM		 8620 return -EINVAL;
8621 }
4c476991 8622 }
04a773ad 8623
267335d6
AQ		 8624 ibss.control_port =
8625 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
8626
5336fa88
SW		 8627 ibss.userspace_handles_dfs =
8628 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
8629
4c476991 8630 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 8631 if (err)
b47f610b 8632 kzfree(connkeys);
04a773ad
JB		 8633 return err;
8634}
8635
8636static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
8637{
4c476991
JB		 8638 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8639 struct net_device *dev = info->user_ptr[1];
04a773ad 8640
4c476991
JB		 8641 if (!rdev->ops->leave_ibss)
8642 return -EOPNOTSUPP;
04a773ad 8643
4c476991
JB		 8644 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8645 return -EOPNOTSUPP;
04a773ad 8646
4c476991 8647 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 8648}
8649
f4e583c8
AQ		 8650static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
8651{
8652 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8653 struct net_device *dev = info->user_ptr[1];
57fbcce3 8654 int mcast_rate[NUM_NL80211_BANDS];
f4e583c8
AQ		 8655 u32 nla_rate;
8656 int err;
8657
8658 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 8659 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
8660 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 8661 return -EOPNOTSUPP;
8662
8663 if (!rdev->ops->set_mcast_rate)
8664 return -EOPNOTSUPP;
8665
8666 memset(mcast_rate, 0, sizeof(mcast_rate));
8667
8668 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
8669 return -EINVAL;
8670
8671 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
8672 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
8673 return -EINVAL;
8674
a1056b1b 8675 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 8676
8677 return err;
8678}
8679
ad7e718c
JB		 8680static struct sk_buff *
8681__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 8682 struct wireless_dev *wdev, int approxlen,
8683 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 8684 enum nl80211_attrs attr,
8685 const struct nl80211_vendor_cmd_info *info,
8686 gfp_t gfp)
ad7e718c
JB		 8687{
8688 struct sk_buff *skb;
8689 void *hdr;
8690 struct nlattr *data;
8691
8692 skb = nlmsg_new(approxlen + 100, gfp);
8693 if (!skb)
8694 return NULL;
8695
8696 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
8697 if (!hdr) {
8698 kfree_skb(skb);
8699 return NULL;
8700 }
8701
8702 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
8703 goto nla_put_failure;
567ffc35
JB		 8704
8705 if (info) {
8706 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
8707 info->vendor_id))
8708 goto nla_put_failure;
8709 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
8710 info->subcmd))
8711 goto nla_put_failure;
8712 }
8713
6c09e791 8714 if (wdev) {
2dad624e
ND		 8715 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
8716 wdev_id(wdev), NL80211_ATTR_PAD))
6c09e791
AK		 8717 goto nla_put_failure;
8718 if (wdev->netdev &&
8719 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
8720 wdev->netdev->ifindex))
8721 goto nla_put_failure;
8722 }
8723
ad7e718c 8724 data = nla_nest_start(skb, attr);
76e1fb4b
JB		 8725 if (!data)
8726 goto nla_put_failure;
ad7e718c
JB		 8727
8728 ((void **)skb->cb)[0] = rdev;
8729 ((void **)skb->cb)[1] = hdr;
8730 ((void **)skb->cb)[2] = data;
8731
8732 return skb;
8733
8734 nla_put_failure:
8735 kfree_skb(skb);
8736 return NULL;
8737}
f4e583c8 8738
e03ad6ea 8739struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 8740 struct wireless_dev *wdev,
e03ad6ea
JB		 8741 enum nl80211_commands cmd,
8742 enum nl80211_attrs attr,
8743 int vendor_event_idx,
8744 int approxlen, gfp_t gfp)
8745{
f26cbf40 8746 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 8747 const struct nl80211_vendor_cmd_info *info;
8748
8749 switch (cmd) {
8750 case NL80211_CMD_TESTMODE:
8751 if (WARN_ON(vendor_event_idx != -1))
8752 return NULL;
8753 info = NULL;
8754 break;
8755 case NL80211_CMD_VENDOR:
8756 if (WARN_ON(vendor_event_idx < 0 ||
8757 vendor_event_idx >= wiphy->n_vendor_events))
8758 return NULL;
8759 info = &wiphy->vendor_events[vendor_event_idx];
8760 break;
8761 default:
8762 WARN_ON(1);
8763 return NULL;
8764 }
8765
6c09e791 8766 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 8767 cmd, attr, info, gfp);
8768}
8769EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8770
8771void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8772{
8773 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8774 void *hdr = ((void **)skb->cb)[1];
8775 struct nlattr *data = ((void **)skb->cb)[2];
8776 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8777
bd8c78e7
JB		 8778 /* clear CB data for netlink core to own from now on */
8779 memset(skb->cb, 0, sizeof(skb->cb));
8780
e03ad6ea
JB		 8781 nla_nest_end(skb, data);
8782 genlmsg_end(skb, hdr);
8783
8784 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8785 mcgrp = NL80211_MCGRP_VENDOR;
8786
8787 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8788 mcgrp, gfp);
8789}
8790EXPORT_SYMBOL(__cfg80211_send_event_skb);
8791
aff89a9b 8792#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 8793static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8794{
4c476991 8795 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 8796 struct wireless_dev *wdev =
8797 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 8798 int err;
8799
fc73f11f
DS		 8800 if (!rdev->ops->testmode_cmd)
8801 return -EOPNOTSUPP;
8802
8803 if (IS_ERR(wdev)) {
8804 err = PTR_ERR(wdev);
8805 if (err != -EINVAL)
8806 return err;
8807 wdev = NULL;
8808 } else if (wdev->wiphy != &rdev->wiphy) {
8809 return -EINVAL;
8810 }
8811
aff89a9b
JB		 8812 if (!info->attrs[NL80211_ATTR_TESTDATA])
8813 return -EINVAL;
8814
ad7e718c 8815 rdev->cur_cmd_info = info;
fc73f11f 8816 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 8817 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8818 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 8819 rdev->cur_cmd_info = NULL;
aff89a9b 8820
aff89a9b
JB		 8821 return err;
8822}
8823
71063f0e
WYG		 8824static int nl80211_testmode_dump(struct sk_buff *skb,
8825 struct netlink_callback *cb)
8826{
00918d33 8827 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 8828 int err;
8829 long phy_idx;
8830 void *data = NULL;
8831 int data_len = 0;
8832
5fe231e8
JB		 8833 rtnl_lock();
8834
71063f0e
WYG		 8835 if (cb->args[0]) {
8836 /*
8837 * 0 is a valid index, but not valid for args[0],
8838 * so we need to offset by 1.
8839 */
8840 phy_idx = cb->args[0] - 1;
a4956dca
LC		 8841
8842 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8843 if (!rdev) {
8844 err = -ENOENT;
8845 goto out_err;
8846 }
71063f0e 8847 } else {
c90c39da
JB		 8848 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
8849
71063f0e 8850 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
fceb6435
JB		 8851 attrbuf, nl80211_fam.maxattr,
8852 nl80211_policy, NULL);
71063f0e 8853 if (err)
5fe231e8 8854 goto out_err;
00918d33 8855
c90c39da 8856 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
2bd7e35d 8857 if (IS_ERR(rdev)) {
5fe231e8
JB		 8858 err = PTR_ERR(rdev);
8859 goto out_err;
00918d33 8860 }
2bd7e35d 8861 phy_idx = rdev->wiphy_idx;
2bd7e35d 8862
c90c39da
JB		 8863 if (attrbuf[NL80211_ATTR_TESTDATA])
8864 cb->args[1] = (long)attrbuf[NL80211_ATTR_TESTDATA];
71063f0e
WYG		 8865 }
8866
8867 if (cb->args[1]) {
8868 data = nla_data((void *)cb->args[1]);
8869 data_len = nla_len((void *)cb->args[1]);
8870 }
8871
00918d33 8872 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 8873 err = -EOPNOTSUPP;
8874 goto out_err;
8875 }
8876
8877 while (1) {
15e47304 8878 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 8879 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8880 NL80211_CMD_TESTMODE);
8881 struct nlattr *tmdata;
8882
cb35fba3
DC		 8883 if (!hdr)
8884 break;
8885
9360ffd1 8886 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 8887 genlmsg_cancel(skb, hdr);
8888 break;
8889 }
8890
8891 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8892 if (!tmdata) {
8893 genlmsg_cancel(skb, hdr);
8894 break;
8895 }
e35e4d28 8896 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 8897 nla_nest_end(skb, tmdata);
8898
8899 if (err == -ENOBUFS || err == -ENOENT) {
8900 genlmsg_cancel(skb, hdr);
8901 break;
8902 } else if (err) {
8903 genlmsg_cancel(skb, hdr);
8904 goto out_err;
8905 }
8906
8907 genlmsg_end(skb, hdr);
8908 }
8909
8910 err = skb->len;
8911 /* see above */
8912 cb->args[0] = phy_idx + 1;
8913 out_err:
5fe231e8 8914 rtnl_unlock();
71063f0e
WYG		 8915 return err;
8916}
aff89a9b
JB		 8917#endif
8918
b23aa676
SO		 8919static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8920{
4c476991
JB		 8921 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8922 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 8923 struct cfg80211_connect_params connect;
8924 struct wiphy *wiphy;
fffd0934 8925 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 8926 int err;
8927
8928 memset(&connect, 0, sizeof(connect));
8929
8930 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8931 return -EINVAL;
8932
8933 if (!info->attrs[NL80211_ATTR_SSID] ||
8934 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8935 return -EINVAL;
8936
8937 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8938 connect.auth_type =
8939 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8940 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8941 NL80211_CMD_CONNECT))
b23aa676
SO		 8942 return -EINVAL;
8943 } else
8944 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8945
8946 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8947
3a00df57
AS		 8948 if (info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS] &&
8949 !wiphy_ext_feature_isset(&rdev->wiphy,
8950 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
8951 return -EINVAL;
8952 connect.want_1x = info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS];
8953
c0692b8f 8954 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8955 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8956 if (err)
8957 return err;
b23aa676 8958
074ac8df 8959 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8960 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8961 return -EOPNOTSUPP;
b23aa676 8962
79c97e97 8963 wiphy = &rdev->wiphy;
b23aa676 8964
4486ea98
BS		 8965 connect.bg_scan_period = -1;
8966 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8967 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8968 connect.bg_scan_period =
8969 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8970 }
8971
b23aa676
SO		 8972 if (info->attrs[NL80211_ATTR_MAC])
8973 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8974 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8975 connect.bssid_hint =
8976 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8977 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8978 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8979
8980 if (info->attrs[NL80211_ATTR_IE]) {
8981 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8982 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8983 }
8984
cee00a95
JM		 8985 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8986 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
65026002
EG		 8987 if (connect.mfp == NL80211_MFP_OPTIONAL &&
8988 !wiphy_ext_feature_isset(&rdev->wiphy,
8989 NL80211_EXT_FEATURE_MFP_OPTIONAL))
8990 return -EOPNOTSUPP;
8991
cee00a95 8992 if (connect.mfp != NL80211_MFP_REQUIRED &&
65026002
EG		 8993 connect.mfp != NL80211_MFP_NO &&
8994 connect.mfp != NL80211_MFP_OPTIONAL)
cee00a95
JM		 8995 return -EINVAL;
8996 } else {
8997 connect.mfp = NL80211_MFP_NO;
8998 }
8999
ba6fbacf
JM		 9000 if (info->attrs[NL80211_ATTR_PREV_BSSID])
9001 connect.prev_bssid =
9002 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
9003
b23aa676 9004 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 9005 connect.channel = nl80211_get_valid_chan(
9006 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
9007 if (!connect.channel)
1df4a510
JM		 9008 return -EINVAL;
9009 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 9010 connect.channel_hint = nl80211_get_valid_chan(
9011 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
9012 if (!connect.channel_hint)
4c476991 9013 return -EINVAL;
b23aa676
SO		 9014 }
9015
fffd0934
JB		 9016 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
9017 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 9018 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 9019 if (IS_ERR(connkeys))
9020 return PTR_ERR(connkeys);
fffd0934
JB		 9021 }
9022
7e7c8926
BG		 9023 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
9024 connect.flags |= ASSOC_REQ_DISABLE_HT;
9025
9026 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
9027 memcpy(&connect.ht_capa_mask,
9028 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
9029 sizeof(connect.ht_capa_mask));
9030
9031 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 9032 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 9033 kzfree(connkeys);
7e7c8926 9034 return -EINVAL;
b4e4f47e 9035 }
7e7c8926
BG		 9036 memcpy(&connect.ht_capa,
9037 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
9038 sizeof(connect.ht_capa));
9039 }
9040
ee2aca34
JB		 9041 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
9042 connect.flags |= ASSOC_REQ_DISABLE_VHT;
9043
9044 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
9045 memcpy(&connect.vht_capa_mask,
9046 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
9047 sizeof(connect.vht_capa_mask));
9048
9049 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
9050 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 9051 kzfree(connkeys);
ee2aca34
JB		 9052 return -EINVAL;
9053 }
9054 memcpy(&connect.vht_capa,
9055 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
9056 sizeof(connect.vht_capa));
9057 }
9058
bab5ab7d 9059 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 9060 if (!((rdev->wiphy.features &
9061 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
9062 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
9063 !wiphy_ext_feature_isset(&rdev->wiphy,
9064 NL80211_EXT_FEATURE_RRM)) {
707554b4 9065 kzfree(connkeys);
bab5ab7d 9066 return -EINVAL;
707554b4 9067 }
bab5ab7d
AK		 9068 connect.flags |= ASSOC_REQ_USE_RRM;
9069 }
9070
34d50519 9071 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 9072 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
34d50519
LD		 9073 kzfree(connkeys);
9074 return -EOPNOTSUPP;
9075 }
9076
38de03d2
AS		 9077 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
9078 /* bss selection makes no sense if bssid is set */
9079 if (connect.bssid) {
9080 kzfree(connkeys);
9081 return -EINVAL;
9082 }
9083
9084 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
9085 wiphy, &connect.bss_select);
9086 if (err) {
9087 kzfree(connkeys);
9088 return err;
9089 }
9090 }
9091
a3caf744
VK		 9092 if (wiphy_ext_feature_isset(&rdev->wiphy,
9093 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
9094 info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] &&
9095 info->attrs[NL80211_ATTR_FILS_ERP_REALM] &&
9096 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] &&
9097 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9098 connect.fils_erp_username =
9099 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9100 connect.fils_erp_username_len =
9101 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9102 connect.fils_erp_realm =
9103 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9104 connect.fils_erp_realm_len =
9105 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9106 connect.fils_erp_next_seq_num =
9107 nla_get_u16(
9108 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM]);
9109 connect.fils_erp_rrk =
9110 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9111 connect.fils_erp_rrk_len =
9112 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9113 } else if (info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] ||
9114 info->attrs[NL80211_ATTR_FILS_ERP_REALM] ||
9115 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] ||
9116 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9117 kzfree(connkeys);
9118 return -EINVAL;
9119 }
9120
83739b03 9121 wdev_lock(dev->ieee80211_ptr);
bd2522b1 9122
4ce2bd9c
JM		 9123 err = cfg80211_connect(rdev, dev, &connect, connkeys,
9124 connect.prev_bssid);
fffd0934 9125 if (err)
b47f610b 9126 kzfree(connkeys);
bd2522b1
AZ		 9127
9128 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
9129 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
9130 if (connect.bssid)
9131 memcpy(dev->ieee80211_ptr->disconnect_bssid,
9132 connect.bssid, ETH_ALEN);
9133 else
9134 memset(dev->ieee80211_ptr->disconnect_bssid,
9135 0, ETH_ALEN);
9136 }
9137
9138 wdev_unlock(dev->ieee80211_ptr);
9139
b23aa676
SO		 9140 return err;
9141}
9142
088e8df8 9143static int nl80211_update_connect_params(struct sk_buff *skb,
9144 struct genl_info *info)
9145{
9146 struct cfg80211_connect_params connect = {};
9147 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9148 struct net_device *dev = info->user_ptr[1];
9149 struct wireless_dev *wdev = dev->ieee80211_ptr;
9150 u32 changed = 0;
9151 int ret;
9152
9153 if (!rdev->ops->update_connect_params)
9154 return -EOPNOTSUPP;
9155
9156 if (info->attrs[NL80211_ATTR_IE]) {
9157 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9158 return -EINVAL;
9159 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9160 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9161 changed |= UPDATE_ASSOC_IES;
9162 }
9163
9164 wdev_lock(dev->ieee80211_ptr);
9165 if (!wdev->current_bss)
9166 ret = -ENOLINK;
9167 else
9168 ret = rdev_update_connect_params(rdev, dev, &connect, changed);
9169 wdev_unlock(dev->ieee80211_ptr);
9170
9171 return ret;
9172}
9173
b23aa676
SO		 9174static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
9175{
4c476991
JB		 9176 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9177 struct net_device *dev = info->user_ptr[1];
b23aa676 9178 u16 reason;
83739b03 9179 int ret;
b23aa676
SO		 9180
9181 if (!info->attrs[NL80211_ATTR_REASON_CODE])
9182 reason = WLAN_REASON_DEAUTH_LEAVING;
9183 else
9184 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
9185
9186 if (reason == 0)
9187 return -EINVAL;
9188
074ac8df 9189 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9190 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9191 return -EOPNOTSUPP;
b23aa676 9192
83739b03
JB		 9193 wdev_lock(dev->ieee80211_ptr);
9194 ret = cfg80211_disconnect(rdev, dev, reason, true);
9195 wdev_unlock(dev->ieee80211_ptr);
9196 return ret;
b23aa676
SO		 9197}
9198
463d0183
JB		 9199static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
9200{
4c476991 9201 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 9202 struct net *net;
9203 int err;
463d0183 9204
4b681c82
VK		 9205 if (info->attrs[NL80211_ATTR_PID]) {
9206 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
9207
9208 net = get_net_ns_by_pid(pid);
9209 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
9210 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 9211
4b681c82
VK		 9212 net = get_net_ns_by_fd(fd);
9213 } else {
9214 return -EINVAL;
9215 }
463d0183 9216
4c476991
JB		 9217 if (IS_ERR(net))
9218 return PTR_ERR(net);
463d0183
JB		 9219
9220 err = 0;
9221
9222 /* check if anything to do */
4c476991
JB		 9223 if (!net_eq(wiphy_net(&rdev->wiphy), net))
9224 err = cfg80211_switch_netns(rdev, net);
463d0183 9225
463d0183 9226 put_net(net);
463d0183
JB		 9227 return err;
9228}
9229
67fbb16b
SO		 9230static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
9231{
4c476991 9232 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 9233 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
9234 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 9235 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 9236 struct cfg80211_pmksa pmksa;
9237
9238 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
9239
67fbb16b
SO		 9240 if (!info->attrs[NL80211_ATTR_PMKID])
9241 return -EINVAL;
9242
67fbb16b 9243 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
a3caf744
VK		 9244
9245 if (info->attrs[NL80211_ATTR_MAC]) {
9246 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
9247 } else if (info->attrs[NL80211_ATTR_SSID] &&
9248 info->attrs[NL80211_ATTR_FILS_CACHE_ID] &&
9249 (info->genlhdr->cmd == NL80211_CMD_DEL_PMKSA ||
9250 info->attrs[NL80211_ATTR_PMK])) {
9251 pmksa.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
9252 pmksa.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
9253 pmksa.cache_id =
9254 nla_data(info->attrs[NL80211_ATTR_FILS_CACHE_ID]);
9255 } else {
9256 return -EINVAL;
9257 }
9258 if (info->attrs[NL80211_ATTR_PMK]) {
9259 pmksa.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
9260 pmksa.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
9261 }
67fbb16b 9262
074ac8df 9263 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9264 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9265 return -EOPNOTSUPP;
67fbb16b
SO		 9266
9267 switch (info->genlhdr->cmd) {
9268 case NL80211_CMD_SET_PMKSA:
9269 rdev_ops = rdev->ops->set_pmksa;
9270 break;
9271 case NL80211_CMD_DEL_PMKSA:
9272 rdev_ops = rdev->ops->del_pmksa;
9273 break;
9274 default:
9275 WARN_ON(1);
9276 break;
9277 }
9278
4c476991
JB		 9279 if (!rdev_ops)
9280 return -EOPNOTSUPP;
67fbb16b 9281
4c476991 9282 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 9283}
9284
9285static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
9286{
4c476991
JB		 9287 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9288 struct net_device *dev = info->user_ptr[1];
67fbb16b 9289
074ac8df 9290 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9291 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9292 return -EOPNOTSUPP;
67fbb16b 9293
4c476991
JB		 9294 if (!rdev->ops->flush_pmksa)
9295 return -EOPNOTSUPP;
67fbb16b 9296
e35e4d28 9297 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 9298}
9299
109086ce
AN		 9300static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
9301{
9302 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9303 struct net_device *dev = info->user_ptr[1];
9304 u8 action_code, dialog_token;
df942e7b 9305 u32 peer_capability = 0;
109086ce
AN		 9306 u16 status_code;
9307 u8 *peer;
31fa97c5 9308 bool initiator;
109086ce
AN		 9309
9310 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9311 !rdev->ops->tdls_mgmt)
9312 return -EOPNOTSUPP;
9313
9314 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
9315 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
9316 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
9317 !info->attrs[NL80211_ATTR_IE] ||
9318 !info->attrs[NL80211_ATTR_MAC])
9319 return -EINVAL;
9320
9321 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9322 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
9323 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
9324 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 9325 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 9326 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
9327 peer_capability =
9328 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 9329
e35e4d28 9330 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 9331 dialog_token, status_code, peer_capability,
31fa97c5 9332 initiator,
e35e4d28
HG		 9333 nla_data(info->attrs[NL80211_ATTR_IE]),
9334 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 9335}
9336
9337static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
9338{
9339 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9340 struct net_device *dev = info->user_ptr[1];
9341 enum nl80211_tdls_operation operation;
9342 u8 *peer;
9343
9344 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9345 !rdev->ops->tdls_oper)
9346 return -EOPNOTSUPP;
9347
9348 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
9349 !info->attrs[NL80211_ATTR_MAC])
9350 return -EINVAL;
9351
9352 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
9353 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9354
e35e4d28 9355 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 9356}
9357
9588bbd5
JM		 9358static int nl80211_remain_on_channel(struct sk_buff *skb,
9359 struct genl_info *info)
9360{
4c476991 9361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9362 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 9363 struct cfg80211_chan_def chandef;
34373d12 9364 const struct cfg80211_chan_def *compat_chandef;
9588bbd5
JM		 9365 struct sk_buff *msg;
9366 void *hdr;
9367 u64 cookie;
683b6d3b 9368 u32 duration;
9588bbd5
JM		 9369 int err;
9370
9371 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
9372 !info->attrs[NL80211_ATTR_DURATION])
9373 return -EINVAL;
9374
9375 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9376
ebf348fc
JB		 9377 if (!rdev->ops->remain_on_channel ||
9378 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
9379 return -EOPNOTSUPP;
9380
9588bbd5 9381 /*
ebf348fc
JB		 9382 * We should be on that channel for at least a minimum amount of
9383 * time (10ms) but no longer than the driver supports.
9588bbd5 9384 */
ebf348fc 9385 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 9386 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 9387 return -EINVAL;
9388
683b6d3b
JB		 9389 err = nl80211_parse_chandef(rdev, info, &chandef);
9390 if (err)
9391 return err;
9588bbd5 9392
34373d12
VT		 9393 wdev_lock(wdev);
9394 if (!cfg80211_off_channel_oper_allowed(wdev) &&
9395 !cfg80211_chandef_identical(&wdev->chandef, &chandef)) {
9396 compat_chandef = cfg80211_chandef_compatible(&wdev->chandef,
9397 &chandef);
9398 if (compat_chandef != &chandef) {
9399 wdev_unlock(wdev);
9400 return -EBUSY;
9401 }
9402 }
9403 wdev_unlock(wdev);
9404
9588bbd5 9405 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9406 if (!msg)
9407 return -ENOMEM;
9588bbd5 9408
15e47304 9409 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 9410 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 9411 if (!hdr) {
9412 err = -ENOBUFS;
9588bbd5
JM		 9413 goto free_msg;
9414 }
9415
683b6d3b
JB		 9416 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
9417 duration, &cookie);
9588bbd5
JM		 9418
9419 if (err)
9420 goto free_msg;
9421
2dad624e
ND		 9422 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9423 NL80211_ATTR_PAD))
9360ffd1 9424 goto nla_put_failure;
9588bbd5
JM		 9425
9426 genlmsg_end(msg, hdr);
4c476991
JB		 9427
9428 return genlmsg_reply(msg, info);
9588bbd5
JM		 9429
9430 nla_put_failure:
9431 err = -ENOBUFS;
9432 free_msg:
9433 nlmsg_free(msg);
9588bbd5
JM		 9434 return err;
9435}
9436
9437static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
9438 struct genl_info *info)
9439{
4c476991 9440 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9441 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 9442 u64 cookie;
9588bbd5
JM		 9443
9444 if (!info->attrs[NL80211_ATTR_COOKIE])
9445 return -EINVAL;
9446
4c476991
JB		 9447 if (!rdev->ops->cancel_remain_on_channel)
9448 return -EOPNOTSUPP;
9588bbd5 9449
9588bbd5
JM		 9450 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9451
e35e4d28 9452 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 9453}
9454
13ae75b1
JM		 9455static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
9456 struct genl_info *info)
9457{
13ae75b1 9458 struct cfg80211_bitrate_mask mask;
a7c7fbff 9459 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9460 struct net_device *dev = info->user_ptr[1];
a7c7fbff 9461 int err;
13ae75b1 9462
4c476991
JB		 9463 if (!rdev->ops->set_bitrate_mask)
9464 return -EOPNOTSUPP;
13ae75b1 9465
a7c7fbff
PK		 9466 err = nl80211_parse_tx_bitrate_mask(info, &mask);
9467 if (err)
9468 return err;
13ae75b1 9469
e35e4d28 9470 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 9471}
9472
2e161f78 9473static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9474{
4c476991 9475 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9476 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 9477 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 9478
9479 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
9480 return -EINVAL;
9481
2e161f78
JB		 9482 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
9483 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 9484
71bbc994
JB		 9485 switch (wdev->iftype) {
9486 case NL80211_IFTYPE_STATION:
9487 case NL80211_IFTYPE_ADHOC:
9488 case NL80211_IFTYPE_P2P_CLIENT:
9489 case NL80211_IFTYPE_AP:
9490 case NL80211_IFTYPE_AP_VLAN:
9491 case NL80211_IFTYPE_MESH_POINT:
9492 case NL80211_IFTYPE_P2P_GO:
98104fde 9493 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9494 break;
cb3b7d87 9495 case NL80211_IFTYPE_NAN:
71bbc994 9496 default:
4c476991 9497 return -EOPNOTSUPP;
71bbc994 9498 }
026331c4
JM		 9499
9500 /* not much point in registering if we can't reply */
4c476991
JB		 9501 if (!rdev->ops->mgmt_tx)
9502 return -EOPNOTSUPP;
026331c4 9503
15e47304 9504 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 9505 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
9506 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 9507}
9508
2e161f78 9509static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9510{
4c476991 9511 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9512 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 9513 struct cfg80211_chan_def chandef;
026331c4 9514 int err;
d64d373f 9515 void *hdr = NULL;
026331c4 9516 u64 cookie;
e247bd90 9517 struct sk_buff *msg = NULL;
b176e629
AO		 9518 struct cfg80211_mgmt_tx_params params = {
9519 .dont_wait_for_ack =
9520 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
9521 };
026331c4 9522
683b6d3b 9523 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 9524 return -EINVAL;
9525
4c476991
JB		 9526 if (!rdev->ops->mgmt_tx)
9527 return -EOPNOTSUPP;
026331c4 9528
71bbc994 9529 switch (wdev->iftype) {
ea141b75
AQ		 9530 case NL80211_IFTYPE_P2P_DEVICE:
9531 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
9532 return -EINVAL;
71bbc994
JB		 9533 case NL80211_IFTYPE_STATION:
9534 case NL80211_IFTYPE_ADHOC:
9535 case NL80211_IFTYPE_P2P_CLIENT:
9536 case NL80211_IFTYPE_AP:
9537 case NL80211_IFTYPE_AP_VLAN:
9538 case NL80211_IFTYPE_MESH_POINT:
9539 case NL80211_IFTYPE_P2P_GO:
9540 break;
cb3b7d87 9541 case NL80211_IFTYPE_NAN:
71bbc994 9542 default:
4c476991 9543 return -EOPNOTSUPP;
71bbc994 9544 }
026331c4 9545
f7ca38df 9546 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 9547 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 9548 return -EINVAL;
b176e629 9549 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 9550
9551 /*
9552 * We should wait on the channel for at least a minimum amount
9553 * of time (10ms) but no longer than the driver supports.
9554 */
b176e629
AO		 9555 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9556 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc 9557 return -EINVAL;
f7ca38df
JB		 9558 }
9559
b176e629 9560 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 9561
b176e629 9562 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 9563 return -EINVAL;
9564
b176e629 9565 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 9566
ea141b75
AQ		 9567 /* get the channel if any has been specified, otherwise pass NULL to
9568 * the driver. The latter will use the current one
9569 */
9570 chandef.chan = NULL;
9571 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9572 err = nl80211_parse_chandef(rdev, info, &chandef);
9573 if (err)
9574 return err;
9575 }
9576
b176e629 9577 if (!chandef.chan && params.offchan)
ea141b75 9578 return -EINVAL;
026331c4 9579
34373d12
VT		 9580 wdev_lock(wdev);
9581 if (params.offchan && !cfg80211_off_channel_oper_allowed(wdev)) {
9582 wdev_unlock(wdev);
9583 return -EBUSY;
9584 }
9585 wdev_unlock(wdev);
9586
34d22ce2
AO		 9587 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
9588 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
9589
9590 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
9591 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9592 int i;
9593
9594 if (len % sizeof(u16))
9595 return -EINVAL;
9596
9597 params.n_csa_offsets = len / sizeof(u16);
9598 params.csa_offsets =
9599 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9600
9601 /* check that all the offsets fit the frame */
9602 for (i = 0; i < params.n_csa_offsets; i++) {
9603 if (params.csa_offsets[i] >= params.len)
9604 return -EINVAL;
9605 }
9606 }
9607
b176e629 9608 if (!params.dont_wait_for_ack) {
e247bd90
JB		 9609 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9610 if (!msg)
9611 return -ENOMEM;
026331c4 9612
15e47304 9613 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 9614 NL80211_CMD_FRAME);
cb35fba3
DC		 9615 if (!hdr) {
9616 err = -ENOBUFS;
e247bd90
JB		 9617 goto free_msg;
9618 }
026331c4 9619 }
e247bd90 9620
b176e629
AO		 9621 params.chan = chandef.chan;
9622 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 9623 if (err)
9624 goto free_msg;
9625
e247bd90 9626 if (msg) {
2dad624e
ND		 9627 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9628 NL80211_ATTR_PAD))
9360ffd1 9629 goto nla_put_failure;
026331c4 9630
e247bd90
JB		 9631 genlmsg_end(msg, hdr);
9632 return genlmsg_reply(msg, info);
9633 }
9634
9635 return 0;
026331c4
JM		 9636
9637 nla_put_failure:
9638 err = -ENOBUFS;
9639 free_msg:
9640 nlmsg_free(msg);
026331c4
JM		 9641 return err;
9642}
9643
f7ca38df
JB		 9644static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
9645{
9646 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9647 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 9648 u64 cookie;
9649
9650 if (!info->attrs[NL80211_ATTR_COOKIE])
9651 return -EINVAL;
9652
9653 if (!rdev->ops->mgmt_tx_cancel_wait)
9654 return -EOPNOTSUPP;
9655
71bbc994
JB		 9656 switch (wdev->iftype) {
9657 case NL80211_IFTYPE_STATION:
9658 case NL80211_IFTYPE_ADHOC:
9659 case NL80211_IFTYPE_P2P_CLIENT:
9660 case NL80211_IFTYPE_AP:
9661 case NL80211_IFTYPE_AP_VLAN:
9662 case NL80211_IFTYPE_P2P_GO:
98104fde 9663 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9664 break;
cb3b7d87 9665 case NL80211_IFTYPE_NAN:
71bbc994 9666 default:
f7ca38df 9667 return -EOPNOTSUPP;
71bbc994 9668 }
f7ca38df
JB		 9669
9670 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9671
e35e4d28 9672 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 9673}
9674
ffb9eb3d
KV		 9675static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9676{
4c476991 9677 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 9678 struct wireless_dev *wdev;
4c476991 9679 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9680 u8 ps_state;
9681 bool state;
9682 int err;
9683
4c476991
JB		 9684 if (!info->attrs[NL80211_ATTR_PS_STATE])
9685 return -EINVAL;
ffb9eb3d
KV		 9686
9687 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9688
4c476991
JB		 9689 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9690 return -EINVAL;
ffb9eb3d
KV		 9691
9692 wdev = dev->ieee80211_ptr;
9693
4c476991
JB		 9694 if (!rdev->ops->set_power_mgmt)
9695 return -EOPNOTSUPP;
ffb9eb3d
KV		 9696
9697 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9698
9699 if (state == wdev->ps)
4c476991 9700 return 0;
ffb9eb3d 9701
e35e4d28 9702 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 9703 if (!err)
9704 wdev->ps = state;
ffb9eb3d
KV		 9705 return err;
9706}
9707
9708static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9709{
4c476991 9710 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 9711 enum nl80211_ps_state ps_state;
9712 struct wireless_dev *wdev;
4c476991 9713 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9714 struct sk_buff *msg;
9715 void *hdr;
9716 int err;
9717
ffb9eb3d
KV		 9718 wdev = dev->ieee80211_ptr;
9719
4c476991
JB		 9720 if (!rdev->ops->set_power_mgmt)
9721 return -EOPNOTSUPP;
ffb9eb3d
KV		 9722
9723 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9724 if (!msg)
9725 return -ENOMEM;
ffb9eb3d 9726
15e47304 9727 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 9728 NL80211_CMD_GET_POWER_SAVE);
9729 if (!hdr) {
4c476991 9730 err = -ENOBUFS;
ffb9eb3d
KV		 9731 goto free_msg;
9732 }
9733
9734 if (wdev->ps)
9735 ps_state = NL80211_PS_ENABLED;
9736 else
9737 ps_state = NL80211_PS_DISABLED;
9738
9360ffd1
DM		 9739 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9740 goto nla_put_failure;
ffb9eb3d
KV		 9741
9742 genlmsg_end(msg, hdr);
4c476991 9743 return genlmsg_reply(msg, info);
ffb9eb3d 9744
4c476991 9745 nla_put_failure:
ffb9eb3d 9746 err = -ENOBUFS;
4c476991 9747 free_msg:
ffb9eb3d 9748 nlmsg_free(msg);
ffb9eb3d
KV		 9749 return err;
9750}
9751
94e860f1
JB		 9752static const struct nla_policy
9753nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
4a4b8169 9754 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_BINARY },
d6dc1a38
JO		 9755 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9756 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 9757 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9758 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9759 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
bee427b8 9760 [NL80211_ATTR_CQM_RSSI_LEVEL] = { .type = NLA_S32 },
d6dc1a38
JO		 9761};
9762
84f10708 9763static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 9764 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 9765{
9766 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 9767 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9768 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 9769
d9d8b019 9770 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 9771 return -EINVAL;
9772
84f10708
TP		 9773 if (!rdev->ops->set_cqm_txe_config)
9774 return -EOPNOTSUPP;
9775
9776 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9777 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9778 return -EOPNOTSUPP;
9779
e35e4d28 9780 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 9781}
9782
4a4b8169
AZ		 9783static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev,
9784 struct net_device *dev)
9785{
9786 struct wireless_dev *wdev = dev->ieee80211_ptr;
9787 s32 last, low, high;
9788 u32 hyst;
45c6bc6c 9789 int i, n, low_index;
4a4b8169
AZ		 9790 int err;
9791
9792 /* RSSI reporting disabled? */
9793 if (!wdev->cqm_config)
9794 return rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0);
9795
9796 /*
9797 * Obtain current RSSI value if possible, if not and no RSSI threshold
9798 * event has been received yet, we should receive an event after a
9799 * connection is established and enough beacons received to calculate
9800 * the average.
9801 */
9802 if (!wdev->cqm_config->last_rssi_event_value && wdev->current_bss &&
9803 rdev->ops->get_station) {
5762d7d3 9804 struct station_info sinfo = {};
4a4b8169
AZ		 9805 u8 *mac_addr;
9806
9807 mac_addr = wdev->current_bss->pub.bssid;
9808
9809 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
9810 if (err)
9811 return err;
9812
9813 if (sinfo.filled & BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG))
9814 wdev->cqm_config->last_rssi_event_value =
9815 (s8) sinfo.rx_beacon_signal_avg;
9816 }
9817
9818 last = wdev->cqm_config->last_rssi_event_value;
9819 hyst = wdev->cqm_config->rssi_hyst;
9820 n = wdev->cqm_config->n_rssi_thresholds;
9821
9822 for (i = 0; i < n; i++)
9823 if (last < wdev->cqm_config->rssi_thresholds[i])
9824 break;
9825
45c6bc6c
MH		 9826 low_index = i - 1;
9827 if (low_index >= 0) {
9828 low_index = array_index_nospec(low_index, n);
9829 low = wdev->cqm_config->rssi_thresholds[low_index] - hyst;
9830 } else {
9831 low = S32_MIN;
9832 }
9833 if (i < n) {
9834 i = array_index_nospec(i, n);
9835 high = wdev->cqm_config->rssi_thresholds[i] + hyst - 1;
9836 } else {
9837 high = S32_MAX;
9838 }
4a4b8169
AZ		 9839
9840 return rdev_set_cqm_rssi_range_config(rdev, dev, low, high);
9841}
9842
d6dc1a38 9843static int nl80211_set_cqm_rssi(struct genl_info *info,
4a4b8169
AZ		 9844 const s32 *thresholds, int n_thresholds,
9845 u32 hysteresis)
d6dc1a38 9846{
4c476991 9847 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9848 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9849 struct wireless_dev *wdev = dev->ieee80211_ptr;
4a4b8169
AZ		 9850 int i, err;
9851 s32 prev = S32_MIN;
d6dc1a38 9852
4a4b8169
AZ		 9853 /* Check all values negative and sorted */
9854 for (i = 0; i < n_thresholds; i++) {
9855 if (thresholds[i] > 0 || thresholds[i] <= prev)
9856 return -EINVAL;
d6dc1a38 9857
4a4b8169
AZ		 9858 prev = thresholds[i];
9859 }
d6dc1a38 9860
074ac8df 9861 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9862 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9863 return -EOPNOTSUPP;
d6dc1a38 9864
4a4b8169
AZ		 9865 wdev_lock(wdev);
9866 cfg80211_cqm_config_free(wdev);
9867 wdev_unlock(wdev);
9868
9869 if (n_thresholds <= 1 && rdev->ops->set_cqm_rssi_config) {
9870 if (n_thresholds == 0 || thresholds[0] == 0) /* Disabling */
9871 return rdev_set_cqm_rssi_config(rdev, dev, 0, 0);
9872
9873 return rdev_set_cqm_rssi_config(rdev, dev,
9874 thresholds[0], hysteresis);
9875 }
9876
9877 if (!wiphy_ext_feature_isset(&rdev->wiphy,
9878 NL80211_EXT_FEATURE_CQM_RSSI_LIST))
9879 return -EOPNOTSUPP;
9880
9881 if (n_thresholds == 1 && thresholds[0] == 0) /* Disabling */
9882 n_thresholds = 0;
9883
9884 wdev_lock(wdev);
9885 if (n_thresholds) {
9886 struct cfg80211_cqm_config *cqm_config;
9887
9888 cqm_config = kzalloc(sizeof(struct cfg80211_cqm_config) +
9889 n_thresholds * sizeof(s32), GFP_KERNEL);
9890 if (!cqm_config) {
9891 err = -ENOMEM;
9892 goto unlock;
9893 }
9894
9895 cqm_config->rssi_hyst = hysteresis;
9896 cqm_config->n_rssi_thresholds = n_thresholds;
9897 memcpy(cqm_config->rssi_thresholds, thresholds,
9898 n_thresholds * sizeof(s32));
9899
9900 wdev->cqm_config = cqm_config;
9901 }
9902
9903 err = cfg80211_cqm_rssi_update(rdev, dev);
9904
9905unlock:
9906 wdev_unlock(wdev);
9907
9908 return err;
d6dc1a38
JO		 9909}
9910
9911static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9912{
9913 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9914 struct nlattr *cqm;
9915 int err;
9916
9917 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 9918 if (!cqm)
9919 return -EINVAL;
d6dc1a38
JO		 9920
9921 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
fe52145f 9922 nl80211_attr_cqm_policy, info->extack);
d6dc1a38 9923 if (err)
1da5fcc8 9924 return err;
d6dc1a38
JO		 9925
9926 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9927 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
4a4b8169
AZ		 9928 const s32 *thresholds =
9929 nla_data(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9930 int len = nla_len(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
1da5fcc8 9931 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 9932
4a4b8169
AZ		 9933 if (len % 4)
9934 return -EINVAL;
9935
9936 return nl80211_set_cqm_rssi(info, thresholds, len / 4,
9937 hysteresis);
1da5fcc8
JB		 9938 }
9939
9940 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9941 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9942 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9943 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9944 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9945 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9946
9947 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9948 }
9949
9950 return -EINVAL;
d6dc1a38
JO		 9951}
9952
6e0bd6c3
RL		 9953static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9954{
9955 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9956 struct net_device *dev = info->user_ptr[1];
9957 struct ocb_setup setup = {};
9958 int err;
9959
9960 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9961 if (err)
9962 return err;
9963
9964 return cfg80211_join_ocb(rdev, dev, &setup);
9965}
9966
9967static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9968{
9969 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9970 struct net_device *dev = info->user_ptr[1];
9971
9972 return cfg80211_leave_ocb(rdev, dev);
9973}
9974
29cbe68c
JB		 9975static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9976{
9977 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9978 struct net_device *dev = info->user_ptr[1];
9979 struct mesh_config cfg;
c80d545d 9980 struct mesh_setup setup;
29cbe68c
JB		 9981 int err;
9982
9983 /* start with default */
9984 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9985 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9986
24bdd9f4 9987 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9988 /* and parse parameters if given */
24bdd9f4 9989 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9990 if (err)
9991 return err;
9992 }
9993
9994 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9995 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9996 return -EINVAL;
9997
c80d545d
JC		 9998 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9999 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
10000
4bb62344
CYY		 10001 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
10002 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
10003 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
10004 return -EINVAL;
10005
9bdbf04d
MP		 10006 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
10007 setup.beacon_interval =
10008 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9 10009
0c317a02
PK		 10010 err = cfg80211_validate_beacon_int(rdev,
10011 NL80211_IFTYPE_MESH_POINT,
10012 setup.beacon_interval);
12d20fc9
PK		 10013 if (err)
10014 return err;
9bdbf04d
MP		 10015 }
10016
10017 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
10018 setup.dtim_period =
10019 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
10020 if (setup.dtim_period < 1 || setup.dtim_period > 100)
10021 return -EINVAL;
10022 }
10023
c80d545d
JC		 10024 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
10025 /* parse additional setup parameters if given */
10026 err = nl80211_parse_mesh_setup(info, &setup);
10027 if (err)
10028 return err;
10029 }
10030
d37bb18a
TP		 10031 if (setup.user_mpm)
10032 cfg.auto_open_plinks = false;
10033
cc1d2806 10034 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 10035 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
10036 if (err)
10037 return err;
cc1d2806
JB		 10038 } else {
10039 /* cfg80211_join_mesh() will sort it out */
683b6d3b 10040 setup.chandef.chan = NULL;
cc1d2806
JB		 10041 }
10042
ffb3cf30
AN		 10043 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
10044 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
10045 int n_rates =
10046 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
10047 struct ieee80211_supported_band *sband;
10048
10049 if (!setup.chandef.chan)
10050 return -EINVAL;
10051
10052 sband = rdev->wiphy.bands[setup.chandef.chan->band];
10053
10054 err = ieee80211_get_ratemask(sband, rates, n_rates,
10055 &setup.basic_rates);
10056 if (err)
10057 return err;
10058 }
10059
8564e382
JB		 10060 if (info->attrs[NL80211_ATTR_TX_RATES]) {
10061 err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
10062 if (err)
10063 return err;
10064
265698d7
JB		 10065 if (!setup.chandef.chan)
10066 return -EINVAL;
10067
8564e382
JB		 10068 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
10069 &setup.beacon_rate);
10070 if (err)
10071 return err;
10072 }
10073
d37d49c2
BB		 10074 setup.userspace_handles_dfs =
10075 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
10076
c80d545d 10077 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 10078}
10079
10080static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
10081{
10082 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10083 struct net_device *dev = info->user_ptr[1];
10084
10085 return cfg80211_leave_mesh(rdev, dev);
10086}
10087
dfb89c56 10088#ifdef CONFIG_PM
bb92d199
AK		 10089static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
10090 struct cfg80211_registered_device *rdev)
10091{
6abb9cb9 10092 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 10093 struct nlattr *nl_pats, *nl_pat;
10094 int i, pat_len;
10095
6abb9cb9 10096 if (!wowlan->n_patterns)
bb92d199
AK		 10097 return 0;
10098
10099 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
10100 if (!nl_pats)
10101 return -ENOBUFS;
10102
6abb9cb9 10103 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 10104 nl_pat = nla_nest_start(msg, i + 1);
10105 if (!nl_pat)
10106 return -ENOBUFS;
6abb9cb9 10107 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 10108 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 10109 wowlan->patterns[i].mask) ||
50ac6607
AK		 10110 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10111 wowlan->patterns[i].pattern) ||
10112 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 10113 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 10114 return -ENOBUFS;
10115 nla_nest_end(msg, nl_pat);
10116 }
10117 nla_nest_end(msg, nl_pats);
10118
10119 return 0;
10120}
10121
2a0e047e
JB		 10122static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
10123 struct cfg80211_wowlan_tcp *tcp)
10124{
10125 struct nlattr *nl_tcp;
10126
10127 if (!tcp)
10128 return 0;
10129
10130 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
10131 if (!nl_tcp)
10132 return -ENOBUFS;
10133
930345ea
JB		 10134 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
10135 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 10136 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
10137 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
10138 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
10139 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
10140 tcp->payload_len, tcp->payload) ||
10141 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
10142 tcp->data_interval) ||
10143 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
10144 tcp->wake_len, tcp->wake_data) ||
10145 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
10146 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
10147 return -ENOBUFS;
10148
10149 if (tcp->payload_seq.len &&
10150 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
10151 sizeof(tcp->payload_seq), &tcp->payload_seq))
10152 return -ENOBUFS;
10153
10154 if (tcp->payload_tok.len &&
10155 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
10156 sizeof(tcp->payload_tok) + tcp->tokens_size,
10157 &tcp->payload_tok))
10158 return -ENOBUFS;
10159
e248ad30
JB		 10160 nla_nest_end(msg, nl_tcp);
10161
2a0e047e
JB		 10162 return 0;
10163}
10164
75453ccb
LC		 10165static int nl80211_send_wowlan_nd(struct sk_buff *msg,
10166 struct cfg80211_sched_scan_request *req)
10167{
3b06d277 10168 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 10169 int i;
10170
10171 if (!req)
10172 return 0;
10173
10174 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
10175 if (!nd)
10176 return -ENOBUFS;
10177
3b06d277
AS		 10178 if (req->n_scan_plans == 1 &&
10179 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
10180 req->scan_plans[0].interval * 1000))
75453ccb
LC		 10181 return -ENOBUFS;
10182
21fea567
LC		 10183 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
10184 return -ENOBUFS;
10185
bf95ecdb 10186 if (req->relative_rssi_set) {
10187 struct nl80211_bss_select_rssi_adjust rssi_adjust;
10188
10189 if (nla_put_s8(msg, NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI,
10190 req->relative_rssi))
10191 return -ENOBUFS;
10192
10193 rssi_adjust.band = req->rssi_adjust.band;
10194 rssi_adjust.delta = req->rssi_adjust.delta;
10195 if (nla_put(msg, NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST,
10196 sizeof(rssi_adjust), &rssi_adjust))
10197 return -ENOBUFS;
10198 }
10199
75453ccb
LC		 10200 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10201 if (!freqs)
10202 return -ENOBUFS;
10203
53b18980
JB		 10204 for (i = 0; i < req->n_channels; i++) {
10205 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10206 return -ENOBUFS;
10207 }
75453ccb
LC		 10208
10209 nla_nest_end(msg, freqs);
10210
10211 if (req->n_match_sets) {
10212 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
76e1fb4b
JB		 10213 if (!matches)
10214 return -ENOBUFS;
10215
75453ccb
LC		 10216 for (i = 0; i < req->n_match_sets; i++) {
10217 match = nla_nest_start(msg, i);
76e1fb4b
JB		 10218 if (!match)
10219 return -ENOBUFS;
10220
53b18980
JB		 10221 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
10222 req->match_sets[i].ssid.ssid_len,
10223 req->match_sets[i].ssid.ssid))
10224 return -ENOBUFS;
75453ccb
LC		 10225 nla_nest_end(msg, match);
10226 }
10227 nla_nest_end(msg, matches);
10228 }
10229
3b06d277
AS		 10230 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
10231 if (!scan_plans)
10232 return -ENOBUFS;
10233
10234 for (i = 0; i < req->n_scan_plans; i++) {
10235 scan_plan = nla_nest_start(msg, i + 1);
76e1fb4b
JB		 10236 if (!scan_plan)
10237 return -ENOBUFS;
10238
3b06d277
AS		 10239 if (!scan_plan ||
10240 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
10241 req->scan_plans[i].interval) ||
10242 (req->scan_plans[i].iterations &&
10243 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
10244 req->scan_plans[i].iterations)))
10245 return -ENOBUFS;
10246 nla_nest_end(msg, scan_plan);
10247 }
10248 nla_nest_end(msg, scan_plans);
10249
75453ccb
LC		 10250 nla_nest_end(msg, nd);
10251
10252 return 0;
10253}
10254
ff1b6e69
JB		 10255static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
10256{
10257 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10258 struct sk_buff *msg;
10259 void *hdr;
2a0e047e 10260 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 10261
964dc9e2 10262 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 10263 return -EOPNOTSUPP;
10264
6abb9cb9 10265 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 10266 /* adjust size to have room for all the data */
6abb9cb9
JB		 10267 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
10268 rdev->wiphy.wowlan_config->tcp->payload_len +
10269 rdev->wiphy.wowlan_config->tcp->wake_len +
10270 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 10271 }
10272
10273 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 10274 if (!msg)
10275 return -ENOMEM;
10276
15e47304 10277 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 10278 NL80211_CMD_GET_WOWLAN);
10279 if (!hdr)
10280 goto nla_put_failure;
10281
6abb9cb9 10282 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 10283 struct nlattr *nl_wowlan;
10284
10285 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10286 if (!nl_wowlan)
10287 goto nla_put_failure;
10288
6abb9cb9 10289 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 10290 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 10291 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 10292 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 10293 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 10294 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 10295 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 10296 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 10297 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 10298 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 10299 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 10300 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 10301 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 10302 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
10303 goto nla_put_failure;
2a0e047e 10304
bb92d199
AK		 10305 if (nl80211_send_wowlan_patterns(msg, rdev))
10306 goto nla_put_failure;
2a0e047e 10307
6abb9cb9
JB		 10308 if (nl80211_send_wowlan_tcp(msg,
10309 rdev->wiphy.wowlan_config->tcp))
2a0e047e 10310 goto nla_put_failure;
75453ccb
LC		 10311
10312 if (nl80211_send_wowlan_nd(
10313 msg,
10314 rdev->wiphy.wowlan_config->nd_config))
10315 goto nla_put_failure;
2a0e047e 10316
ff1b6e69
JB		 10317 nla_nest_end(msg, nl_wowlan);
10318 }
10319
10320 genlmsg_end(msg, hdr);
10321 return genlmsg_reply(msg, info);
10322
10323nla_put_failure:
10324 nlmsg_free(msg);
10325 return -ENOBUFS;
10326}
10327
2a0e047e
JB		 10328static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
10329 struct nlattr *attr,
10330 struct cfg80211_wowlan *trig)
10331{
10332 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
10333 struct cfg80211_wowlan_tcp *cfg;
10334 struct nl80211_wowlan_tcp_data_token *tok = NULL;
10335 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
10336 u32 size;
10337 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
10338 int err, port;
10339
964dc9e2 10340 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 10341 return -EINVAL;
10342
bfe2c7b1 10343 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TCP, attr,
fceb6435 10344 nl80211_wowlan_tcp_policy, NULL);
2a0e047e
JB		 10345 if (err)
10346 return err;
10347
10348 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
10349 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
10350 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
10351 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
10352 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
10353 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
10354 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
10355 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
10356 return -EINVAL;
10357
10358 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 10359 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 10360 return -EINVAL;
10361
10362 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 10363 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 10364 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 10365 return -EINVAL;
10366
10367 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 10368 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 10369 return -EINVAL;
10370
10371 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
10372 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
10373 return -EINVAL;
10374
10375 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
10376 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10377
10378 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10379 tokens_size = tokln - sizeof(*tok);
10380
10381 if (!tok->len || tokens_size % tok->len)
10382 return -EINVAL;
964dc9e2 10383 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 10384 return -EINVAL;
964dc9e2 10385 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 10386 return -EINVAL;
964dc9e2 10387 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 10388 return -EINVAL;
964dc9e2 10389 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 10390 return -EINVAL;
10391 if (tok->offset + tok->len > data_size)
10392 return -EINVAL;
10393 }
10394
10395 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
10396 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 10397 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 10398 return -EINVAL;
10399 if (seq->len == 0 || seq->len > 4)
10400 return -EINVAL;
10401 if (seq->len + seq->offset > data_size)
10402 return -EINVAL;
10403 }
10404
10405 size = sizeof(*cfg);
10406 size += data_size;
10407 size += wake_size + wake_mask_size;
10408 size += tokens_size;
10409
10410 cfg = kzalloc(size, GFP_KERNEL);
10411 if (!cfg)
10412 return -ENOMEM;
67b61f6c
JB		 10413 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
10414 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 10415 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
10416 ETH_ALEN);
10417 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
10418 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
10419 else
10420 port = 0;
10421#ifdef CONFIG_INET
10422 /* allocate a socket and port for it and use it */
10423 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
10424 IPPROTO_TCP, &cfg->sock, 1);
10425 if (err) {
10426 kfree(cfg);
10427 return err;
10428 }
10429 if (inet_csk_get_port(cfg->sock->sk, port)) {
10430 sock_release(cfg->sock);
10431 kfree(cfg);
10432 return -EADDRINUSE;
10433 }
10434 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
10435#else
10436 if (!port) {
10437 kfree(cfg);
10438 return -EINVAL;
10439 }
10440 cfg->src_port = port;
10441#endif
10442
10443 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
10444 cfg->payload_len = data_size;
10445 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
10446 memcpy((void *)cfg->payload,
10447 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
10448 data_size);
10449 if (seq)
10450 cfg->payload_seq = *seq;
10451 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
10452 cfg->wake_len = wake_size;
10453 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
10454 memcpy((void *)cfg->wake_data,
10455 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
10456 wake_size);
10457 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
10458 data_size + wake_size;
10459 memcpy((void *)cfg->wake_mask,
10460 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
10461 wake_mask_size);
10462 if (tok) {
10463 cfg->tokens_size = tokens_size;
10464 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
10465 }
10466
10467 trig->tcp = cfg;
10468
10469 return 0;
10470}
10471
8cd4d456
LC		 10472static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
10473 const struct wiphy_wowlan_support *wowlan,
10474 struct nlattr *attr,
10475 struct cfg80211_wowlan *trig)
10476{
10477 struct nlattr **tb;
10478 int err;
10479
10480 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
10481 if (!tb)
10482 return -ENOMEM;
10483
10484 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
10485 err = -EOPNOTSUPP;
10486 goto out;
10487 }
10488
fceb6435
JB		 10489 err = nla_parse_nested(tb, NL80211_ATTR_MAX, attr, nl80211_policy,
10490 NULL);
8cd4d456
LC		 10491 if (err)
10492 goto out;
10493
aad1e812
AVS		 10494 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb,
10495 wowlan->max_nd_match_sets);
8cd4d456
LC		 10496 err = PTR_ERR_OR_ZERO(trig->nd_config);
10497 if (err)
10498 trig->nd_config = NULL;
10499
10500out:
10501 kfree(tb);
10502 return err;
10503}
10504
ff1b6e69
JB		 10505static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
10506{
10507 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10508 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 10509 struct cfg80211_wowlan new_triggers = {};
ae33bd81 10510 struct cfg80211_wowlan *ntrig;
964dc9e2 10511 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 10512 int err, i;
6abb9cb9 10513 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 10514 bool regular = false;
ff1b6e69 10515
964dc9e2 10516 if (!wowlan)
ff1b6e69
JB		 10517 return -EOPNOTSUPP;
10518
ae33bd81
JB		 10519 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
10520 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 10521 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 10522 goto set_wakeup;
10523 }
ff1b6e69 10524
bfe2c7b1
JB		 10525 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TRIG,
10526 info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS],
fe52145f 10527 nl80211_wowlan_policy, info->extack);
ff1b6e69
JB		 10528 if (err)
10529 return err;
10530
10531 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
10532 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
10533 return -EINVAL;
10534 new_triggers.any = true;
10535 }
10536
10537 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
10538 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
10539 return -EINVAL;
10540 new_triggers.disconnect = true;
98fc4386 10541 regular = true;
ff1b6e69
JB		 10542 }
10543
10544 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
10545 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
10546 return -EINVAL;
10547 new_triggers.magic_pkt = true;
98fc4386 10548 regular = true;
ff1b6e69
JB		 10549 }
10550
77dbbb13
JB		 10551 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
10552 return -EINVAL;
10553
10554 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
10555 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
10556 return -EINVAL;
10557 new_triggers.gtk_rekey_failure = true;
98fc4386 10558 regular = true;
77dbbb13
JB		 10559 }
10560
10561 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
10562 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
10563 return -EINVAL;
10564 new_triggers.eap_identity_req = true;
98fc4386 10565 regular = true;
77dbbb13
JB		 10566 }
10567
10568 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
10569 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
10570 return -EINVAL;
10571 new_triggers.four_way_handshake = true;
98fc4386 10572 regular = true;
77dbbb13
JB		 10573 }
10574
10575 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
10576 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
10577 return -EINVAL;
10578 new_triggers.rfkill_release = true;
98fc4386 10579 regular = true;
77dbbb13
JB		 10580 }
10581
ff1b6e69
JB		 10582 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
10583 struct nlattr *pat;
10584 int n_patterns = 0;
bb92d199 10585 int rem, pat_len, mask_len, pkt_offset;
50ac6607 10586 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 10587
98fc4386
JB		 10588 regular = true;
10589
ff1b6e69
JB		 10590 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10591 rem)
10592 n_patterns++;
10593 if (n_patterns > wowlan->n_patterns)
10594 return -EINVAL;
10595
10596 new_triggers.patterns = kcalloc(n_patterns,
10597 sizeof(new_triggers.patterns[0]),
10598 GFP_KERNEL);
10599 if (!new_triggers.patterns)
10600 return -ENOMEM;
10601
10602 new_triggers.n_patterns = n_patterns;
10603 i = 0;
10604
10605 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10606 rem) {
922bd80f
JB		 10607 u8 *mask_pat;
10608
6d40e985
JB		 10609 err = nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
10610 nl80211_packet_pattern_policy,
10611 info->extack);
10612 if (err)
10613 goto error;
10614
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
6d40e985
JB		 10863 err = nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
10864 nl80211_packet_pattern_policy, NULL);
10865 if (err)
10866 return err;
10867
be29b99a
AK		 10868 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10869 !pat_tb[NL80211_PKTPAT_PATTERN])
10870 return -EINVAL;
10871 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10872 mask_len = DIV_ROUND_UP(pat_len, 8);
10873 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10874 return -EINVAL;
10875 if (pat_len > coalesce->pattern_max_len ||
10876 pat_len < coalesce->pattern_min_len)
10877 return -EINVAL;
10878
10879 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10880 pkt_offset = 0;
10881 else
10882 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10883 if (pkt_offset > coalesce->max_pkt_offset)
10884 return -EINVAL;
10885 new_rule->patterns[i].pkt_offset = pkt_offset;
10886
922bd80f
JB		 10887 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10888 if (!mask_pat)
be29b99a 10889 return -ENOMEM;
922bd80f
JB		 10890
10891 new_rule->patterns[i].mask = mask_pat;
10892 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10893 mask_len);
10894
10895 mask_pat += mask_len;
10896 new_rule->patterns[i].pattern = mask_pat;
be29b99a 10897 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 10898 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10899 pat_len);
be29b99a
AK		 10900 i++;
10901 }
10902
10903 return 0;
10904}
10905
10906static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10907{
10908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10909 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10910 struct cfg80211_coalesce new_coalesce = {};
10911 struct cfg80211_coalesce *n_coalesce;
10912 int err, rem_rule, n_rules = 0, i, j;
10913 struct nlattr *rule;
10914 struct cfg80211_coalesce_rules *tmp_rule;
10915
10916 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10917 return -EOPNOTSUPP;
10918
10919 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10920 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 10921 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 10922 return 0;
10923 }
10924
10925 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10926 rem_rule)
10927 n_rules++;
10928 if (n_rules > coalesce->n_rules)
10929 return -EINVAL;
10930
10931 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10932 GFP_KERNEL);
10933 if (!new_coalesce.rules)
10934 return -ENOMEM;
10935
10936 new_coalesce.n_rules = n_rules;
10937 i = 0;
10938
10939 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10940 rem_rule) {
10941 err = nl80211_parse_coalesce_rule(rdev, rule,
10942 &new_coalesce.rules[i]);
10943 if (err)
10944 goto error;
10945
10946 i++;
10947 }
10948
a1056b1b 10949 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 10950 if (err)
10951 goto error;
10952
10953 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10954 if (!n_coalesce) {
10955 err = -ENOMEM;
10956 goto error;
10957 }
10958 cfg80211_rdev_free_coalesce(rdev);
10959 rdev->coalesce = n_coalesce;
10960
10961 return 0;
10962error:
10963 for (i = 0; i < new_coalesce.n_rules; i++) {
10964 tmp_rule = &new_coalesce.rules[i];
10965 for (j = 0; j < tmp_rule->n_patterns; j++)
10966 kfree(tmp_rule->patterns[j].mask);
10967 kfree(tmp_rule->patterns);
10968 }
10969 kfree(new_coalesce.rules);
10970
10971 return err;
10972}
10973
e5497d76
JB		 10974static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10975{
10976 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10977 struct net_device *dev = info->user_ptr[1];
10978 struct wireless_dev *wdev = dev->ieee80211_ptr;
10979 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10980 struct cfg80211_gtk_rekey_data rekey_data;
10981 int err;
10982
10983 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10984 return -EINVAL;
10985
bfe2c7b1
JB		 10986 err = nla_parse_nested(tb, MAX_NL80211_REKEY_DATA,
10987 info->attrs[NL80211_ATTR_REKEY_DATA],
fe52145f 10988 nl80211_rekey_policy, info->extack);
e5497d76
JB		 10989 if (err)
10990 return err;
10991
e785fa0a
VD		 10992 if (!tb[NL80211_REKEY_DATA_REPLAY_CTR] || !tb[NL80211_REKEY_DATA_KEK] ||
10993 !tb[NL80211_REKEY_DATA_KCK])
10994 return -EINVAL;
e5497d76
JB		 10995 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10996 return -ERANGE;
10997 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10998 return -ERANGE;
10999 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
11000 return -ERANGE;
11001
78f686ca
JB		 11002 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
11003 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
11004 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 11005
11006 wdev_lock(wdev);
11007 if (!wdev->current_bss) {
11008 err = -ENOTCONN;
11009 goto out;
11010 }
11011
11012 if (!rdev->ops->set_rekey_data) {
11013 err = -EOPNOTSUPP;
11014 goto out;
11015 }
11016
e35e4d28 11017 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 11018 out:
11019 wdev_unlock(wdev);
11020 return err;
11021}
11022
28946da7
JB		 11023static int nl80211_register_unexpected_frame(struct sk_buff *skb,
11024 struct genl_info *info)
11025{
11026 struct net_device *dev = info->user_ptr[1];
11027 struct wireless_dev *wdev = dev->ieee80211_ptr;
11028
11029 if (wdev->iftype != NL80211_IFTYPE_AP &&
11030 wdev->iftype != NL80211_IFTYPE_P2P_GO)
11031 return -EINVAL;
11032
15e47304 11033 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 11034 return -EBUSY;
11035
15e47304 11036 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 11037 return 0;
11038}
11039
7f6cf311
JB		 11040static int nl80211_probe_client(struct sk_buff *skb,
11041 struct genl_info *info)
11042{
11043 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11044 struct net_device *dev = info->user_ptr[1];
11045 struct wireless_dev *wdev = dev->ieee80211_ptr;
11046 struct sk_buff *msg;
11047 void *hdr;
11048 const u8 *addr;
11049 u64 cookie;
11050 int err;
11051
11052 if (wdev->iftype != NL80211_IFTYPE_AP &&
11053 wdev->iftype != NL80211_IFTYPE_P2P_GO)
11054 return -EOPNOTSUPP;
11055
11056 if (!info->attrs[NL80211_ATTR_MAC])
11057 return -EINVAL;
11058
11059 if (!rdev->ops->probe_client)
11060 return -EOPNOTSUPP;
11061
11062 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11063 if (!msg)
11064 return -ENOMEM;
11065
15e47304 11066 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 11067 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 11068 if (!hdr) {
11069 err = -ENOBUFS;
7f6cf311
JB		 11070 goto free_msg;
11071 }
11072
11073 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11074
e35e4d28 11075 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 11076 if (err)
11077 goto free_msg;
11078
2dad624e
ND		 11079 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11080 NL80211_ATTR_PAD))
9360ffd1 11081 goto nla_put_failure;
7f6cf311
JB		 11082
11083 genlmsg_end(msg, hdr);
11084
11085 return genlmsg_reply(msg, info);
11086
11087 nla_put_failure:
11088 err = -ENOBUFS;
11089 free_msg:
11090 nlmsg_free(msg);
11091 return err;
11092}
11093
5e760230
JB		 11094static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
11095{
11096 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 11097 struct cfg80211_beacon_registration *reg, *nreg;
11098 int rv;
5e760230
JB		 11099
11100 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
11101 return -EOPNOTSUPP;
11102
37c73b5f
BG		 11103 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
11104 if (!nreg)
11105 return -ENOMEM;
11106
11107 /* First, check if already registered. */
11108 spin_lock_bh(&rdev->beacon_registrations_lock);
11109 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11110 if (reg->nlportid == info->snd_portid) {
11111 rv = -EALREADY;
11112 goto out_err;
11113 }
11114 }
11115 /* Add it to the list */
11116 nreg->nlportid = info->snd_portid;
11117 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 11118
37c73b5f 11119 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11120
11121 return 0;
37c73b5f
BG		 11122out_err:
11123 spin_unlock_bh(&rdev->beacon_registrations_lock);
11124 kfree(nreg);
11125 return rv;
5e760230
JB		 11126}
11127
98104fde
JB		 11128static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
11129{
11130 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11131 struct wireless_dev *wdev = info->user_ptr[1];
11132 int err;
11133
11134 if (!rdev->ops->start_p2p_device)
11135 return -EOPNOTSUPP;
11136
11137 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
11138 return -EOPNOTSUPP;
11139
73c7da3d 11140 if (wdev_running(wdev))
98104fde
JB		 11141 return 0;
11142
b6a55015
LC		 11143 if (rfkill_blocked(rdev->rfkill))
11144 return -ERFKILL;
98104fde 11145
eeb126e9 11146 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 11147 if (err)
11148 return err;
11149
73c7da3d 11150 wdev->is_running = true;
98104fde 11151 rdev->opencount++;
98104fde
JB		 11152
11153 return 0;
11154}
11155
11156static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
11157{
11158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11159 struct wireless_dev *wdev = info->user_ptr[1];
11160
11161 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
11162 return -EOPNOTSUPP;
11163
11164 if (!rdev->ops->stop_p2p_device)
11165 return -EOPNOTSUPP;
11166
f9f47529 11167 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 11168
11169 return 0;
11170}
11171
cb3b7d87
AB		 11172static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
11173{
11174 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11175 struct wireless_dev *wdev = info->user_ptr[1];
11176 struct cfg80211_nan_conf conf = {};
11177 int err;
11178
11179 if (wdev->iftype != NL80211_IFTYPE_NAN)
11180 return -EOPNOTSUPP;
11181
eeb04a96 11182 if (wdev_running(wdev))
cb3b7d87
AB		 11183 return -EEXIST;
11184
11185 if (rfkill_blocked(rdev->rfkill))
11186 return -ERFKILL;
11187
11188 if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
11189 return -EINVAL;
11190
cb3b7d87
AB		 11191 conf.master_pref =
11192 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11193 if (!conf.master_pref)
11194 return -EINVAL;
11195
8585989d
LC		 11196 if (info->attrs[NL80211_ATTR_BANDS]) {
11197 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11198
11199 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11200 return -EOPNOTSUPP;
11201
11202 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11203 return -EINVAL;
11204
11205 conf.bands = bands;
11206 }
cb3b7d87
AB		 11207
11208 err = rdev_start_nan(rdev, wdev, &conf);
11209 if (err)
11210 return err;
11211
73c7da3d 11212 wdev->is_running = true;
cb3b7d87
AB		 11213 rdev->opencount++;
11214
11215 return 0;
11216}
11217
11218static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
11219{
11220 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11221 struct wireless_dev *wdev = info->user_ptr[1];
11222
11223 if (wdev->iftype != NL80211_IFTYPE_NAN)
11224 return -EOPNOTSUPP;
11225
11226 cfg80211_stop_nan(rdev, wdev);
11227
11228 return 0;
11229}
11230
a442b761
AB		 11231static int validate_nan_filter(struct nlattr *filter_attr)
11232{
11233 struct nlattr *attr;
11234 int len = 0, n_entries = 0, rem;
11235
11236 nla_for_each_nested(attr, filter_attr, rem) {
11237 len += nla_len(attr);
11238 n_entries++;
11239 }
11240
11241 if (len >= U8_MAX)
11242 return -EINVAL;
11243
11244 return n_entries;
11245}
11246
11247static int handle_nan_filter(struct nlattr *attr_filter,
11248 struct cfg80211_nan_func *func,
11249 bool tx)
11250{
11251 struct nlattr *attr;
11252 int n_entries, rem, i;
11253 struct cfg80211_nan_func_filter *filter;
11254
11255 n_entries = validate_nan_filter(attr_filter);
11256 if (n_entries < 0)
11257 return n_entries;
11258
11259 BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters));
11260
11261 filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL);
11262 if (!filter)
11263 return -ENOMEM;
11264
11265 i = 0;
11266 nla_for_each_nested(attr, attr_filter, rem) {
b15ca182 11267 filter[i].filter = nla_memdup(attr, GFP_KERNEL);
a442b761
AB		 11268 filter[i].len = nla_len(attr);
11269 i++;
11270 }
11271 if (tx) {
11272 func->num_tx_filters = n_entries;
11273 func->tx_filters = filter;
11274 } else {
11275 func->num_rx_filters = n_entries;
11276 func->rx_filters = filter;
11277 }
11278
11279 return 0;
11280}
11281
11282static int nl80211_nan_add_func(struct sk_buff *skb,
11283 struct genl_info *info)
11284{
11285 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11286 struct wireless_dev *wdev = info->user_ptr[1];
11287 struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr;
11288 struct cfg80211_nan_func *func;
11289 struct sk_buff *msg = NULL;
11290 void *hdr = NULL;
11291 int err = 0;
11292
11293 if (wdev->iftype != NL80211_IFTYPE_NAN)
11294 return -EOPNOTSUPP;
11295
73c7da3d 11296 if (!wdev_running(wdev))
a442b761
AB		 11297 return -ENOTCONN;
11298
11299 if (!info->attrs[NL80211_ATTR_NAN_FUNC])
11300 return -EINVAL;
11301
bfe2c7b1
JB		 11302 err = nla_parse_nested(tb, NL80211_NAN_FUNC_ATTR_MAX,
11303 info->attrs[NL80211_ATTR_NAN_FUNC],
fe52145f 11304 nl80211_nan_func_policy, info->extack);
a442b761
AB		 11305 if (err)
11306 return err;
11307
11308 func = kzalloc(sizeof(*func), GFP_KERNEL);
11309 if (!func)
11310 return -ENOMEM;
11311
11312 func->cookie = wdev->wiphy->cookie_counter++;
11313
11314 if (!tb[NL80211_NAN_FUNC_TYPE] ||
11315 nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]) > NL80211_NAN_FUNC_MAX_TYPE) {
11316 err = -EINVAL;
11317 goto out;
11318 }
11319
11320
11321 func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]);
11322
11323 if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) {
11324 err = -EINVAL;
11325 goto out;
11326 }
11327
11328 memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]),
11329 sizeof(func->service_id));
11330
11331 func->close_range =
11332 nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]);
11333
11334 if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) {
11335 func->serv_spec_info_len =
11336 nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]);
11337 func->serv_spec_info =
11338 kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]),
11339 func->serv_spec_info_len,
11340 GFP_KERNEL);
11341 if (!func->serv_spec_info) {
11342 err = -ENOMEM;
11343 goto out;
11344 }
11345 }
11346
11347 if (tb[NL80211_NAN_FUNC_TTL])
11348 func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]);
11349
11350 switch (func->type) {
11351 case NL80211_NAN_FUNC_PUBLISH:
11352 if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) {
11353 err = -EINVAL;
11354 goto out;
11355 }
11356
11357 func->publish_type =
11358 nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]);
11359 func->publish_bcast =
11360 nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]);
11361
11362 if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) &&
11363 func->publish_bcast) {
11364 err = -EINVAL;
11365 goto out;
11366 }
11367 break;
11368 case NL80211_NAN_FUNC_SUBSCRIBE:
11369 func->subscribe_active =
11370 nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]);
11371 break;
11372 case NL80211_NAN_FUNC_FOLLOW_UP:
11373 if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] ||
3ea15452
HC		 11374 !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] ||
11375 !tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]) {
a442b761
AB		 11376 err = -EINVAL;
11377 goto out;
11378 }
11379
11380 func->followup_id =
11381 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]);
11382 func->followup_reqid =
11383 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]);
11384 memcpy(func->followup_dest.addr,
11385 nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]),
11386 sizeof(func->followup_dest.addr));
11387 if (func->ttl) {
11388 err = -EINVAL;
11389 goto out;
11390 }
11391 break;
11392 default:
11393 err = -EINVAL;
11394 goto out;
11395 }
11396
11397 if (tb[NL80211_NAN_FUNC_SRF]) {
11398 struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR];
11399
bfe2c7b1
JB		 11400 err = nla_parse_nested(srf_tb, NL80211_NAN_SRF_ATTR_MAX,
11401 tb[NL80211_NAN_FUNC_SRF],
fe52145f 11402 nl80211_nan_srf_policy, info->extack);
a442b761
AB		 11403 if (err)
11404 goto out;
11405
11406 func->srf_include =
11407 nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]);
11408
11409 if (srf_tb[NL80211_NAN_SRF_BF]) {
11410 if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] ||
11411 !srf_tb[NL80211_NAN_SRF_BF_IDX]) {
11412 err = -EINVAL;
11413 goto out;
11414 }
11415
11416 func->srf_bf_len =
11417 nla_len(srf_tb[NL80211_NAN_SRF_BF]);
11418 func->srf_bf =
11419 kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]),
11420 func->srf_bf_len, GFP_KERNEL);
11421 if (!func->srf_bf) {
11422 err = -ENOMEM;
11423 goto out;
11424 }
11425
11426 func->srf_bf_idx =
11427 nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]);
11428 } else {
11429 struct nlattr *attr, *mac_attr =
11430 srf_tb[NL80211_NAN_SRF_MAC_ADDRS];
11431 int n_entries, rem, i = 0;
11432
11433 if (!mac_attr) {
11434 err = -EINVAL;
11435 goto out;
11436 }
11437
11438 n_entries = validate_acl_mac_addrs(mac_attr);
11439 if (n_entries <= 0) {
11440 err = -EINVAL;
11441 goto out;
11442 }
11443
11444 func->srf_num_macs = n_entries;
11445 func->srf_macs =
11446 kzalloc(sizeof(*func->srf_macs) * n_entries,
11447 GFP_KERNEL);
11448 if (!func->srf_macs) {
11449 err = -ENOMEM;
11450 goto out;
11451 }
11452
11453 nla_for_each_nested(attr, mac_attr, rem)
11454 memcpy(func->srf_macs[i++].addr, nla_data(attr),
11455 sizeof(*func->srf_macs));
11456 }
11457 }
11458
11459 if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) {
11460 err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER],
11461 func, true);
11462 if (err)
11463 goto out;
11464 }
11465
11466 if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) {
11467 err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER],
11468 func, false);
11469 if (err)
11470 goto out;
11471 }
11472
11473 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11474 if (!msg) {
11475 err = -ENOMEM;
11476 goto out;
11477 }
11478
11479 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11480 NL80211_CMD_ADD_NAN_FUNCTION);
11481 /* This can't really happen - we just allocated 4KB */
11482 if (WARN_ON(!hdr)) {
11483 err = -ENOMEM;
11484 goto out;
11485 }
11486
11487 err = rdev_add_nan_func(rdev, wdev, func);
11488out:
11489 if (err < 0) {
11490 cfg80211_free_nan_func(func);
11491 nlmsg_free(msg);
11492 return err;
11493 }
11494
11495 /* propagate the instance id and cookie to userspace */
11496 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie,
11497 NL80211_ATTR_PAD))
11498 goto nla_put_failure;
11499
11500 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11501 if (!func_attr)
11502 goto nla_put_failure;
11503
11504 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID,
11505 func->instance_id))
11506 goto nla_put_failure;
11507
11508 nla_nest_end(msg, func_attr);
11509
11510 genlmsg_end(msg, hdr);
11511 return genlmsg_reply(msg, info);
11512
11513nla_put_failure:
11514 nlmsg_free(msg);
11515 return -ENOBUFS;
11516}
11517
11518static int nl80211_nan_del_func(struct sk_buff *skb,
11519 struct genl_info *info)
11520{
11521 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11522 struct wireless_dev *wdev = info->user_ptr[1];
11523 u64 cookie;
11524
11525 if (wdev->iftype != NL80211_IFTYPE_NAN)
11526 return -EOPNOTSUPP;
11527
73c7da3d 11528 if (!wdev_running(wdev))
a442b761
AB		 11529 return -ENOTCONN;
11530
11531 if (!info->attrs[NL80211_ATTR_COOKIE])
11532 return -EINVAL;
11533
a442b761
AB		 11534 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
11535
11536 rdev_del_nan_func(rdev, wdev, cookie);
11537
11538 return 0;
11539}
11540
a5a9dcf2
AB		 11541static int nl80211_nan_change_config(struct sk_buff *skb,
11542 struct genl_info *info)
11543{
11544 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11545 struct wireless_dev *wdev = info->user_ptr[1];
11546 struct cfg80211_nan_conf conf = {};
11547 u32 changed = 0;
11548
11549 if (wdev->iftype != NL80211_IFTYPE_NAN)
11550 return -EOPNOTSUPP;
11551
73c7da3d 11552 if (!wdev_running(wdev))
a5a9dcf2
AB		 11553 return -ENOTCONN;
11554
11555 if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) {
11556 conf.master_pref =
11557 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11558 if (conf.master_pref <= 1 || conf.master_pref == 255)
11559 return -EINVAL;
11560
11561 changed |= CFG80211_NAN_CONF_CHANGED_PREF;
11562 }
11563
8585989d
LC		 11564 if (info->attrs[NL80211_ATTR_BANDS]) {
11565 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11566
11567 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11568 return -EOPNOTSUPP;
11569
11570 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11571 return -EINVAL;
11572
11573 conf.bands = bands;
11574 changed |= CFG80211_NAN_CONF_CHANGED_BANDS;
a5a9dcf2
AB		 11575 }
11576
11577 if (!changed)
11578 return -EINVAL;
11579
11580 return rdev_nan_change_conf(rdev, wdev, &conf, changed);
11581}
11582
50bcd31d
AB		 11583void cfg80211_nan_match(struct wireless_dev *wdev,
11584 struct cfg80211_nan_match_params *match, gfp_t gfp)
11585{
11586 struct wiphy *wiphy = wdev->wiphy;
11587 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11588 struct nlattr *match_attr, *local_func_attr, *peer_func_attr;
11589 struct sk_buff *msg;
11590 void *hdr;
11591
11592 if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr))
11593 return;
11594
11595 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11596 if (!msg)
11597 return;
11598
11599 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH);
11600 if (!hdr) {
11601 nlmsg_free(msg);
11602 return;
11603 }
11604
11605 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11606 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11607 wdev->netdev->ifindex)) ||
11608 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11609 NL80211_ATTR_PAD))
11610 goto nla_put_failure;
11611
11612 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie,
11613 NL80211_ATTR_PAD) ||
11614 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr))
11615 goto nla_put_failure;
11616
11617 match_attr = nla_nest_start(msg, NL80211_ATTR_NAN_MATCH);
11618 if (!match_attr)
11619 goto nla_put_failure;
11620
11621 local_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_LOCAL);
11622 if (!local_func_attr)
11623 goto nla_put_failure;
11624
11625 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id))
11626 goto nla_put_failure;
11627
11628 nla_nest_end(msg, local_func_attr);
11629
11630 peer_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_PEER);
11631 if (!peer_func_attr)
11632 goto nla_put_failure;
11633
11634 if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) ||
11635 nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id))
11636 goto nla_put_failure;
11637
11638 if (match->info && match->info_len &&
11639 nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len,
11640 match->info))
11641 goto nla_put_failure;
11642
11643 nla_nest_end(msg, peer_func_attr);
11644 nla_nest_end(msg, match_attr);
11645 genlmsg_end(msg, hdr);
11646
11647 if (!wdev->owner_nlportid)
11648 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11649 msg, 0, NL80211_MCGRP_NAN, gfp);
11650 else
11651 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11652 wdev->owner_nlportid);
11653
11654 return;
11655
11656nla_put_failure:
11657 nlmsg_free(msg);
11658}
11659EXPORT_SYMBOL(cfg80211_nan_match);
11660
368e5a7b
AB		 11661void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
11662 u8 inst_id,
11663 enum nl80211_nan_func_term_reason reason,
11664 u64 cookie, gfp_t gfp)
11665{
11666 struct wiphy *wiphy = wdev->wiphy;
11667 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11668 struct sk_buff *msg;
11669 struct nlattr *func_attr;
11670 void *hdr;
11671
11672 if (WARN_ON(!inst_id))
11673 return;
11674
11675 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11676 if (!msg)
11677 return;
11678
11679 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION);
11680 if (!hdr) {
11681 nlmsg_free(msg);
11682 return;
11683 }
11684
11685 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11686 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11687 wdev->netdev->ifindex)) ||
11688 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11689 NL80211_ATTR_PAD))
11690 goto nla_put_failure;
11691
11692 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11693 NL80211_ATTR_PAD))
11694 goto nla_put_failure;
11695
11696 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11697 if (!func_attr)
11698 goto nla_put_failure;
11699
11700 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) ||
11701 nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason))
11702 goto nla_put_failure;
11703
11704 nla_nest_end(msg, func_attr);
11705 genlmsg_end(msg, hdr);
11706
11707 if (!wdev->owner_nlportid)
11708 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11709 msg, 0, NL80211_MCGRP_NAN, gfp);
11710 else
11711 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11712 wdev->owner_nlportid);
11713
11714 return;
11715
11716nla_put_failure:
11717 nlmsg_free(msg);
11718}
11719EXPORT_SYMBOL(cfg80211_nan_func_terminated);
11720
3713b4e3
JB		 11721static int nl80211_get_protocol_features(struct sk_buff *skb,
11722 struct genl_info *info)
11723{
11724 void *hdr;
11725 struct sk_buff *msg;
11726
11727 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11728 if (!msg)
11729 return -ENOMEM;
11730
11731 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11732 NL80211_CMD_GET_PROTOCOL_FEATURES);
11733 if (!hdr)
11734 goto nla_put_failure;
11735
11736 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
11737 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
11738 goto nla_put_failure;
11739
11740 genlmsg_end(msg, hdr);
11741 return genlmsg_reply(msg, info);
11742
11743 nla_put_failure:
11744 kfree_skb(msg);
11745 return -ENOBUFS;
11746}
11747
355199e0
JM		 11748static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
11749{
11750 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11751 struct cfg80211_update_ft_ies_params ft_params;
11752 struct net_device *dev = info->user_ptr[1];
11753
11754 if (!rdev->ops->update_ft_ies)
11755 return -EOPNOTSUPP;
11756
11757 if (!info->attrs[NL80211_ATTR_MDID] ||
3f6d3db5 11758 !info->attrs[NL80211_ATTR_IE] ||
355199e0
JM		 11759 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
11760 return -EINVAL;
11761
11762 memset(&ft_params, 0, sizeof(ft_params));
11763 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
11764 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
11765 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
11766
11767 return rdev_update_ft_ies(rdev, dev, &ft_params);
11768}
11769
5de17984
AS		 11770static int nl80211_crit_protocol_start(struct sk_buff *skb,
11771 struct genl_info *info)
11772{
11773 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11774 struct wireless_dev *wdev = info->user_ptr[1];
11775 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
11776 u16 duration;
11777 int ret;
11778
11779 if (!rdev->ops->crit_proto_start)
11780 return -EOPNOTSUPP;
11781
11782 if (WARN_ON(!rdev->ops->crit_proto_stop))
11783 return -EINVAL;
11784
11785 if (rdev->crit_proto_nlportid)
11786 return -EBUSY;
11787
11788 /* determine protocol if provided */
11789 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
11790 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
11791
11792 if (proto >= NUM_NL80211_CRIT_PROTO)
11793 return -EINVAL;
11794
11795 /* timeout must be provided */
11796 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
11797 return -EINVAL;
11798
11799 duration =
11800 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
11801
11802 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
11803 return -ERANGE;
11804
11805 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
11806 if (!ret)
11807 rdev->crit_proto_nlportid = info->snd_portid;
11808
11809 return ret;
11810}
11811
11812static int nl80211_crit_protocol_stop(struct sk_buff *skb,
11813 struct genl_info *info)
11814{
11815 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11816 struct wireless_dev *wdev = info->user_ptr[1];
11817
11818 if (!rdev->ops->crit_proto_stop)
11819 return -EOPNOTSUPP;
11820
11821 if (rdev->crit_proto_nlportid) {
11822 rdev->crit_proto_nlportid = 0;
11823 rdev_crit_proto_stop(rdev, wdev);
11824 }
11825 return 0;
11826}
11827
ad7e718c
JB		 11828static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
11829{
11830 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11831 struct wireless_dev *wdev =
11832 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
11833 int i, err;
11834 u32 vid, subcmd;
11835
11836 if (!rdev->wiphy.vendor_commands)
11837 return -EOPNOTSUPP;
11838
11839 if (IS_ERR(wdev)) {
11840 err = PTR_ERR(wdev);
11841 if (err != -EINVAL)
11842 return err;
11843 wdev = NULL;
11844 } else if (wdev->wiphy != &rdev->wiphy) {
11845 return -EINVAL;
11846 }
11847
11848 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
11849 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
11850 return -EINVAL;
11851
11852 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
11853 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
11854 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
11855 const struct wiphy_vendor_command *vcmd;
11856 void *data = NULL;
11857 int len = 0;
11858
11859 vcmd = &rdev->wiphy.vendor_commands[i];
11860
11861 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11862 continue;
11863
11864 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11865 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11866 if (!wdev)
11867 return -EINVAL;
11868 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11869 !wdev->netdev)
11870 return -EINVAL;
11871
11872 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
73c7da3d 11873 if (!wdev_running(wdev))
ad7e718c
JB		 11874 return -ENETDOWN;
11875 }
7bdbe400
JB		 11876
11877 if (!vcmd->doit)
11878 return -EOPNOTSUPP;
ad7e718c
JB		 11879 } else {
11880 wdev = NULL;
11881 }
11882
11883 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
11884 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11885 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11886 }
11887
11888 rdev->cur_cmd_info = info;
11889 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
11890 data, len);
11891 rdev->cur_cmd_info = NULL;
11892 return err;
11893 }
11894
11895 return -EOPNOTSUPP;
11896}
11897
7bdbe400
JB		 11898static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
11899 struct netlink_callback *cb,
11900 struct cfg80211_registered_device **rdev,
11901 struct wireless_dev **wdev)
11902{
c90c39da 11903 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
7bdbe400
JB		 11904 u32 vid, subcmd;
11905 unsigned int i;
11906 int vcmd_idx = -1;
11907 int err;
11908 void *data = NULL;
11909 unsigned int data_len = 0;
11910
7bdbe400
JB		 11911 if (cb->args[0]) {
11912 /* subtract the 1 again here */
11913 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
11914 struct wireless_dev *tmp;
11915
ea90e0dc
JB		 11916 if (!wiphy)
11917 return -ENODEV;
7bdbe400
JB		 11918 *rdev = wiphy_to_rdev(wiphy);
11919 *wdev = NULL;
11920
11921 if (cb->args[1]) {
53873f13 11922 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
7bdbe400
JB		 11923 if (tmp->identifier == cb->args[1] - 1) {
11924 *wdev = tmp;
11925 break;
11926 }
11927 }
11928 }
11929
11930 /* keep rtnl locked in successful case */
11931 return 0;
11932 }
11933
fceb6435
JB		 11934 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, attrbuf,
11935 nl80211_fam.maxattr, nl80211_policy, NULL);
7bdbe400 11936 if (err)
ea90e0dc 11937 return err;
7bdbe400 11938
c90c39da 11939 if (!attrbuf[NL80211_ATTR_VENDOR_ID] ||
ea90e0dc
JB		 11940 !attrbuf[NL80211_ATTR_VENDOR_SUBCMD])
11941 return -EINVAL;
7bdbe400 11942
c90c39da 11943 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), attrbuf);
7bdbe400
JB		 11944 if (IS_ERR(*wdev))
11945 *wdev = NULL;
11946
c90c39da 11947 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
ea90e0dc
JB		 11948 if (IS_ERR(*rdev))
11949 return PTR_ERR(*rdev);
7bdbe400 11950
c90c39da
JB		 11951 vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]);
11952 subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
7bdbe400
JB		 11953
11954 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
11955 const struct wiphy_vendor_command *vcmd;
11956
11957 vcmd = &(*rdev)->wiphy.vendor_commands[i];
11958
11959 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11960 continue;
11961
ea90e0dc
JB		 11962 if (!vcmd->dumpit)
11963 return -EOPNOTSUPP;
7bdbe400
JB		 11964
11965 vcmd_idx = i;
11966 break;
11967 }
11968
ea90e0dc
JB		 11969 if (vcmd_idx < 0)
11970 return -EOPNOTSUPP;
7bdbe400 11971
c90c39da
JB		 11972 if (attrbuf[NL80211_ATTR_VENDOR_DATA]) {
11973 data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]);
11974 data_len = nla_len(attrbuf[NL80211_ATTR_VENDOR_DATA]);
7bdbe400
JB		 11975 }
11976
11977 /* 0 is the first index - add 1 to parse only once */
11978 cb->args[0] = (*rdev)->wiphy_idx + 1;
11979 /* add 1 to know if it was NULL */
11980 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
11981 cb->args[2] = vcmd_idx;
11982 cb->args[3] = (unsigned long)data;
11983 cb->args[4] = data_len;
11984
11985 /* keep rtnl locked in successful case */
11986 return 0;
7bdbe400
JB		 11987}
11988
11989static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
11990 struct netlink_callback *cb)
11991{
11992 struct cfg80211_registered_device *rdev;
11993 struct wireless_dev *wdev;
11994 unsigned int vcmd_idx;
11995 const struct wiphy_vendor_command *vcmd;
11996 void *data;
11997 int data_len;
11998 int err;
11999 struct nlattr *vendor_data;
12000
ea90e0dc 12001 rtnl_lock();
7bdbe400
JB		 12002 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
12003 if (err)
ea90e0dc 12004 goto out;
7bdbe400
JB		 12005
12006 vcmd_idx = cb->args[2];
12007 data = (void *)cb->args[3];
12008 data_len = cb->args[4];
12009 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
12010
12011 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
12012 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
ea90e0dc
JB		 12013 if (!wdev) {
12014 err = -EINVAL;
12015 goto out;
12016 }
7bdbe400 12017 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
ea90e0dc
JB		 12018 !wdev->netdev) {
12019 err = -EINVAL;
12020 goto out;
12021 }
7bdbe400
JB		 12022
12023 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
ea90e0dc
JB		 12024 if (!wdev_running(wdev)) {
12025 err = -ENETDOWN;
12026 goto out;
12027 }
7bdbe400
JB		 12028 }
12029 }
12030
12031 while (1) {
12032 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
12033 cb->nlh->nlmsg_seq, NLM_F_MULTI,
12034 NL80211_CMD_VENDOR);
12035 if (!hdr)
12036 break;
12037
12038 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 12039 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
12040 wdev_id(wdev),
12041 NL80211_ATTR_PAD))) {
7bdbe400
JB		 12042 genlmsg_cancel(skb, hdr);
12043 break;
12044 }
12045
12046 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
12047 if (!vendor_data) {
12048 genlmsg_cancel(skb, hdr);
12049 break;
12050 }
12051
12052 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
12053 (unsigned long *)&cb->args[5]);
12054 nla_nest_end(skb, vendor_data);
12055
12056 if (err == -ENOBUFS || err == -ENOENT) {
12057 genlmsg_cancel(skb, hdr);
12058 break;
12059 } else if (err) {
12060 genlmsg_cancel(skb, hdr);
12061 goto out;
12062 }
12063
12064 genlmsg_end(skb, hdr);
12065 }
12066
12067 err = skb->len;
12068 out:
12069 rtnl_unlock();
12070 return err;
12071}
12072
ad7e718c
JB		 12073struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
12074 enum nl80211_commands cmd,
12075 enum nl80211_attrs attr,
12076 int approxlen)
12077{
f26cbf40 12078 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 12079
12080 if (WARN_ON(!rdev->cur_cmd_info))
12081 return NULL;
12082
6c09e791 12083 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 12084 rdev->cur_cmd_info->snd_portid,
12085 rdev->cur_cmd_info->snd_seq,
567ffc35 12086 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 12087}
12088EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
12089
12090int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
12091{
12092 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
12093 void *hdr = ((void **)skb->cb)[1];
12094 struct nlattr *data = ((void **)skb->cb)[2];
12095
bd8c78e7
JB		 12096 /* clear CB data for netlink core to own from now on */
12097 memset(skb->cb, 0, sizeof(skb->cb));
12098
ad7e718c
JB		 12099 if (WARN_ON(!rdev->cur_cmd_info)) {
12100 kfree_skb(skb);
12101 return -EINVAL;
12102 }
12103
12104 nla_nest_end(skb, data);
12105 genlmsg_end(skb, hdr);
12106 return genlmsg_reply(skb, rdev->cur_cmd_info);
12107}
12108EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
12109
fa9ffc74
KP		 12110static int nl80211_set_qos_map(struct sk_buff *skb,
12111 struct genl_info *info)
12112{
12113 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12114 struct cfg80211_qos_map *qos_map = NULL;
12115 struct net_device *dev = info->user_ptr[1];
12116 u8 *pos, len, num_des, des_len, des;
12117 int ret;
12118
12119 if (!rdev->ops->set_qos_map)
12120 return -EOPNOTSUPP;
12121
12122 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
12123 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
12124 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
12125
12126 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
12127 len > IEEE80211_QOS_MAP_LEN_MAX)
12128 return -EINVAL;
12129
12130 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
12131 if (!qos_map)
12132 return -ENOMEM;
12133
12134 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
12135 if (num_des) {
12136 des_len = num_des *
12137 sizeof(struct cfg80211_dscp_exception);
12138 memcpy(qos_map->dscp_exception, pos, des_len);
12139 qos_map->num_des = num_des;
12140 for (des = 0; des < num_des; des++) {
12141 if (qos_map->dscp_exception[des].up > 7) {
12142 kfree(qos_map);
12143 return -EINVAL;
12144 }
12145 }
12146 pos += des_len;
12147 }
12148 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
12149 }
12150
12151 wdev_lock(dev->ieee80211_ptr);
12152 ret = nl80211_key_allowed(dev->ieee80211_ptr);
12153 if (!ret)
12154 ret = rdev_set_qos_map(rdev, dev, qos_map);
12155 wdev_unlock(dev->ieee80211_ptr);
12156
12157 kfree(qos_map);
12158 return ret;
12159}
12160
960d01ac
JB		 12161static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
12162{
12163 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12164 struct net_device *dev = info->user_ptr[1];
12165 struct wireless_dev *wdev = dev->ieee80211_ptr;
12166 const u8 *peer;
12167 u8 tsid, up;
12168 u16 admitted_time = 0;
12169 int err;
12170
723e73ac 12171 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 12172 return -EOPNOTSUPP;
12173
12174 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
12175 !info->attrs[NL80211_ATTR_USER_PRIO])
12176 return -EINVAL;
12177
12178 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
12179 if (tsid >= IEEE80211_NUM_TIDS)
12180 return -EINVAL;
12181
12182 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
12183 if (up >= IEEE80211_NUM_UPS)
12184 return -EINVAL;
12185
12186 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 12187 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 12188 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 12189 * need more attributes for that (e.g. BA session requirement);
12190 * change the WMM adminssion test above to allow both then
960d01ac
JB		 12191 */
12192 return -EINVAL;
12193 }
12194
12195 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
12196
12197 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
12198 admitted_time =
12199 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
12200 if (!admitted_time)
12201 return -EINVAL;
12202 }
12203
12204 wdev_lock(wdev);
12205 switch (wdev->iftype) {
12206 case NL80211_IFTYPE_STATION:
12207 case NL80211_IFTYPE_P2P_CLIENT:
12208 if (wdev->current_bss)
12209 break;
12210 err = -ENOTCONN;
12211 goto out;
12212 default:
12213 err = -EOPNOTSUPP;
12214 goto out;
12215 }
12216
12217 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
12218
12219 out:
12220 wdev_unlock(wdev);
12221 return err;
12222}
12223
12224static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
12225{
12226 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12227 struct net_device *dev = info->user_ptr[1];
12228 struct wireless_dev *wdev = dev->ieee80211_ptr;
12229 const u8 *peer;
12230 u8 tsid;
12231 int err;
12232
12233 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
12234 return -EINVAL;
12235
12236 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
12237 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
12238
12239 wdev_lock(wdev);
12240 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
12241 wdev_unlock(wdev);
12242
12243 return err;
12244}
12245
1057d35e
AN		 12246static int nl80211_tdls_channel_switch(struct sk_buff *skb,
12247 struct genl_info *info)
12248{
12249 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12250 struct net_device *dev = info->user_ptr[1];
12251 struct wireless_dev *wdev = dev->ieee80211_ptr;
12252 struct cfg80211_chan_def chandef = {};
12253 const u8 *addr;
12254 u8 oper_class;
12255 int err;
12256
12257 if (!rdev->ops->tdls_channel_switch ||
12258 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12259 return -EOPNOTSUPP;
12260
12261 switch (dev->ieee80211_ptr->iftype) {
12262 case NL80211_IFTYPE_STATION:
12263 case NL80211_IFTYPE_P2P_CLIENT:
12264 break;
12265 default:
12266 return -EOPNOTSUPP;
12267 }
12268
12269 if (!info->attrs[NL80211_ATTR_MAC] ||
12270 !info->attrs[NL80211_ATTR_OPER_CLASS])
12271 return -EINVAL;
12272
12273 err = nl80211_parse_chandef(rdev, info, &chandef);
12274 if (err)
12275 return err;
12276
12277 /*
12278 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
12279 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
12280 * specification is not defined for them.
12281 */
57fbcce3 12282 if (chandef.chan->band == NL80211_BAND_2GHZ &&
1057d35e
AN		 12283 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
12284 chandef.width != NL80211_CHAN_WIDTH_20)
12285 return -EINVAL;
12286
12287 /* we will be active on the TDLS link */
923b352f
AN		 12288 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
12289 wdev->iftype))
1057d35e
AN		 12290 return -EINVAL;
12291
12292 /* don't allow switching to DFS channels */
12293 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
12294 return -EINVAL;
12295
12296 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12297 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
12298
12299 wdev_lock(wdev);
12300 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
12301 wdev_unlock(wdev);
12302
12303 return err;
12304}
12305
12306static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
12307 struct genl_info *info)
12308{
12309 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12310 struct net_device *dev = info->user_ptr[1];
12311 struct wireless_dev *wdev = dev->ieee80211_ptr;
12312 const u8 *addr;
12313
12314 if (!rdev->ops->tdls_channel_switch ||
12315 !rdev->ops->tdls_cancel_channel_switch ||
12316 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12317 return -EOPNOTSUPP;
12318
12319 switch (dev->ieee80211_ptr->iftype) {
12320 case NL80211_IFTYPE_STATION:
12321 case NL80211_IFTYPE_P2P_CLIENT:
12322 break;
12323 default:
12324 return -EOPNOTSUPP;
12325 }
12326
12327 if (!info->attrs[NL80211_ATTR_MAC])
12328 return -EINVAL;
12329
12330 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12331
12332 wdev_lock(wdev);
12333 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
12334 wdev_unlock(wdev);
12335
12336 return 0;
12337}
12338
ce0ce13a
MB		 12339static int nl80211_set_multicast_to_unicast(struct sk_buff *skb,
12340 struct genl_info *info)
12341{
12342 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12343 struct net_device *dev = info->user_ptr[1];
12344 struct wireless_dev *wdev = dev->ieee80211_ptr;
12345 const struct nlattr *nla;
12346 bool enabled;
12347
ce0ce13a
MB		 12348 if (!rdev->ops->set_multicast_to_unicast)
12349 return -EOPNOTSUPP;
12350
12351 if (wdev->iftype != NL80211_IFTYPE_AP &&
12352 wdev->iftype != NL80211_IFTYPE_P2P_GO)
12353 return -EOPNOTSUPP;
12354
12355 nla = info->attrs[NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED];
12356 enabled = nla_get_flag(nla);
12357
12358 return rdev_set_multicast_to_unicast(rdev, dev, enabled);
12359}
12360
3a00df57
AS		 12361static int nl80211_set_pmk(struct sk_buff *skb, struct genl_info *info)
12362{
12363 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12364 struct net_device *dev = info->user_ptr[1];
12365 struct wireless_dev *wdev = dev->ieee80211_ptr;
12366 struct cfg80211_pmk_conf pmk_conf = {};
12367 int ret;
12368
12369 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12370 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12371 return -EOPNOTSUPP;
12372
12373 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12374 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
12375 return -EOPNOTSUPP;
12376
12377 if (!info->attrs[NL80211_ATTR_MAC] || !info->attrs[NL80211_ATTR_PMK])
12378 return -EINVAL;
12379
12380 wdev_lock(wdev);
12381 if (!wdev->current_bss) {
12382 ret = -ENOTCONN;
12383 goto out;
12384 }
12385
12386 pmk_conf.aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
12387 if (memcmp(pmk_conf.aa, wdev->current_bss->pub.bssid, ETH_ALEN)) {
12388 ret = -EINVAL;
12389 goto out;
12390 }
12391
12392 pmk_conf.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
12393 pmk_conf.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
12394 if (pmk_conf.pmk_len != WLAN_PMK_LEN &&
12395 pmk_conf.pmk_len != WLAN_PMK_LEN_SUITE_B_192) {
12396 ret = -EINVAL;
12397 goto out;
12398 }
12399
12400 if (info->attrs[NL80211_ATTR_PMKR0_NAME]) {
12401 int r0_name_len = nla_len(info->attrs[NL80211_ATTR_PMKR0_NAME]);
12402
12403 if (r0_name_len != WLAN_PMK_NAME_LEN) {
12404 ret = -EINVAL;
12405 goto out;
12406 }
12407
12408 pmk_conf.pmk_r0_name =
12409 nla_data(info->attrs[NL80211_ATTR_PMKR0_NAME]);
12410 }
12411
12412 ret = rdev_set_pmk(rdev, dev, &pmk_conf);
12413out:
12414 wdev_unlock(wdev);
12415 return ret;
12416}
12417
12418static int nl80211_del_pmk(struct sk_buff *skb, struct genl_info *info)
12419{
12420 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12421 struct net_device *dev = info->user_ptr[1];
12422 struct wireless_dev *wdev = dev->ieee80211_ptr;
12423 const u8 *aa;
12424 int ret;
12425
12426 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12427 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12428 return -EOPNOTSUPP;
12429
12430 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12431 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
12432 return -EOPNOTSUPP;
12433
12434 if (!info->attrs[NL80211_ATTR_MAC])
12435 return -EINVAL;
12436
12437 wdev_lock(wdev);
12438 aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
12439 ret = rdev_del_pmk(rdev, dev, aa);
12440 wdev_unlock(wdev);
12441
12442 return ret;
12443}
12444
4c476991
JB		 12445#define NL80211_FLAG_NEED_WIPHY 0x01
12446#define NL80211_FLAG_NEED_NETDEV 0x02
12447#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 12448#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
12449#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
12450 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 12451#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 12452/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 12453#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
12454 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 12455#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 12456
f84f771d 12457static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 12458 struct genl_info *info)
12459{
12460 struct cfg80211_registered_device *rdev;
89a54e48 12461 struct wireless_dev *wdev;
4c476991 12462 struct net_device *dev;
4c476991
JB		 12463 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
12464
12465 if (rtnl)
12466 rtnl_lock();
12467
12468 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 12469 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 12470 if (IS_ERR(rdev)) {
12471 if (rtnl)
12472 rtnl_unlock();
12473 return PTR_ERR(rdev);
12474 }
12475 info->user_ptr[0] = rdev;
1bf614ef
JB		 12476 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
12477 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 12478 ASSERT_RTNL();
12479
89a54e48
JB		 12480 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
12481 info->attrs);
12482 if (IS_ERR(wdev)) {
4c476991
JB		 12483 if (rtnl)
12484 rtnl_unlock();
89a54e48 12485 return PTR_ERR(wdev);
4c476991 12486 }
89a54e48 12487
89a54e48 12488 dev = wdev->netdev;
f26cbf40 12489 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 12490
1bf614ef
JB		 12491 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
12492 if (!dev) {
1bf614ef
JB		 12493 if (rtnl)
12494 rtnl_unlock();
12495 return -EINVAL;
12496 }
12497
12498 info->user_ptr[1] = dev;
12499 } else {
12500 info->user_ptr[1] = wdev;
41265714 12501 }
1bf614ef 12502
73c7da3d
AVS		 12503 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
12504 !wdev_running(wdev)) {
12505 if (rtnl)
12506 rtnl_unlock();
12507 return -ENETDOWN;
12508 }
1bf614ef 12509
73c7da3d 12510 if (dev)
1bf614ef 12511 dev_hold(dev);
89a54e48 12512
4c476991 12513 info->user_ptr[0] = rdev;
4c476991
JB		 12514 }
12515
12516 return 0;
12517}
12518
f84f771d 12519static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 12520 struct genl_info *info)
12521{
1bf614ef
JB		 12522 if (info->user_ptr[1]) {
12523 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
12524 struct wireless_dev *wdev = info->user_ptr[1];
12525
12526 if (wdev->netdev)
12527 dev_put(wdev->netdev);
12528 } else {
12529 dev_put(info->user_ptr[1]);
12530 }
12531 }
5393b917 12532
4c476991
JB		 12533 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
12534 rtnl_unlock();
5393b917
JB		 12535
12536 /* If needed, clear the netlink message payload from the SKB
12537 * as it might contain key data that shouldn't stick around on
12538 * the heap after the SKB is freed. The netlink message header
12539 * is still needed for further processing, so leave it intact.
12540 */
12541 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
12542 struct nlmsghdr *nlh = nlmsg_hdr(skb);
12543
12544 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
12545 }
4c476991
JB		 12546}
12547
4534de83 12548static const struct genl_ops nl80211_ops[] = {
55682965
JB		 12549 {
12550 .cmd = NL80211_CMD_GET_WIPHY,
12551 .doit = nl80211_get_wiphy,
12552 .dumpit = nl80211_dump_wiphy,
86e8cf98 12553 .done = nl80211_dump_wiphy_done,
55682965
JB		 12554 .policy = nl80211_policy,
12555 /* can be retrieved by unprivileged users */
5fe231e8
JB		 12556 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12557 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12558 },
12559 {
12560 .cmd = NL80211_CMD_SET_WIPHY,
12561 .doit = nl80211_set_wiphy,
12562 .policy = nl80211_policy,
5617c6cd 12563 .flags = GENL_UNS_ADMIN_PERM,
4c476991 12564 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 12565 },
12566 {
12567 .cmd = NL80211_CMD_GET_INTERFACE,
12568 .doit = nl80211_get_interface,
12569 .dumpit = nl80211_dump_interface,
12570 .policy = nl80211_policy,
12571 /* can be retrieved by unprivileged users */
5fe231e8
JB		 12572 .internal_flags = NL80211_FLAG_NEED_WDEV |
12573 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12574 },
12575 {
12576 .cmd = NL80211_CMD_SET_INTERFACE,
12577 .doit = nl80211_set_interface,
12578 .policy = nl80211_policy,
5617c6cd 12579 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12580 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12581 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12582 },
12583 {
12584 .cmd = NL80211_CMD_NEW_INTERFACE,
12585 .doit = nl80211_new_interface,
12586 .policy = nl80211_policy,
5617c6cd 12587 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12588 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12589 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12590 },
12591 {
12592 .cmd = NL80211_CMD_DEL_INTERFACE,
12593 .doit = nl80211_del_interface,
12594 .policy = nl80211_policy,
5617c6cd 12595 .flags = GENL_UNS_ADMIN_PERM,
84efbb84 12596 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 12597 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 12598 },
12599 {
12600 .cmd = NL80211_CMD_GET_KEY,
12601 .doit = nl80211_get_key,
12602 .policy = nl80211_policy,
5617c6cd 12603 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12604 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12605 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 12606 },
12607 {
12608 .cmd = NL80211_CMD_SET_KEY,
12609 .doit = nl80211_set_key,
12610 .policy = nl80211_policy,
5617c6cd 12611 .flags = GENL_UNS_ADMIN_PERM,
41265714 12612 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12613 NL80211_FLAG_NEED_RTNL |
12614 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 12615 },
12616 {
12617 .cmd = NL80211_CMD_NEW_KEY,
12618 .doit = nl80211_new_key,
12619 .policy = nl80211_policy,
5617c6cd 12620 .flags = GENL_UNS_ADMIN_PERM,
41265714 12621 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12622 NL80211_FLAG_NEED_RTNL |
12623 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 12624 },
12625 {
12626 .cmd = NL80211_CMD_DEL_KEY,
12627 .doit = nl80211_del_key,
12628 .policy = nl80211_policy,
5617c6cd 12629 .flags = GENL_UNS_ADMIN_PERM,
41265714 12630 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12631 NL80211_FLAG_NEED_RTNL,
55682965 12632 },
ed1b6cc7
JB		 12633 {
12634 .cmd = NL80211_CMD_SET_BEACON,
12635 .policy = nl80211_policy,
5617c6cd 12636 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12637 .doit = nl80211_set_beacon,
2b5f8b0b 12638 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12639 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 12640 },
12641 {
8860020e 12642 .cmd = NL80211_CMD_START_AP,
ed1b6cc7 12643 .policy = nl80211_policy,
5617c6cd 12644 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12645 .doit = nl80211_start_ap,
2b5f8b0b 12646 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12647 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 12648 },
12649 {
8860020e 12650 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7 12651 .policy = nl80211_policy,
5617c6cd 12652 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12653 .doit = nl80211_stop_ap,
2b5f8b0b 12654 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12655 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 12656 },
5727ef1b
JB		 12657 {
12658 .cmd = NL80211_CMD_GET_STATION,
12659 .doit = nl80211_get_station,
2ec600d6 12660 .dumpit = nl80211_dump_station,
5727ef1b 12661 .policy = nl80211_policy,
4c476991
JB		 12662 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12663 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12664 },
12665 {
12666 .cmd = NL80211_CMD_SET_STATION,
12667 .doit = nl80211_set_station,
12668 .policy = nl80211_policy,
5617c6cd 12669 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12670 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12671 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12672 },
12673 {
12674 .cmd = NL80211_CMD_NEW_STATION,
12675 .doit = nl80211_new_station,
12676 .policy = nl80211_policy,
5617c6cd 12677 .flags = GENL_UNS_ADMIN_PERM,
41265714 12678 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12679 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12680 },
12681 {
12682 .cmd = NL80211_CMD_DEL_STATION,
12683 .doit = nl80211_del_station,
12684 .policy = nl80211_policy,
5617c6cd 12685 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12686 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12687 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12688 },
12689 {
12690 .cmd = NL80211_CMD_GET_MPATH,
12691 .doit = nl80211_get_mpath,
12692 .dumpit = nl80211_dump_mpath,
12693 .policy = nl80211_policy,
5617c6cd 12694 .flags = GENL_UNS_ADMIN_PERM,
41265714 12695 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12696 NL80211_FLAG_NEED_RTNL,
2ec600d6 12697 },
66be7d2b
HR		 12698 {
12699 .cmd = NL80211_CMD_GET_MPP,
12700 .doit = nl80211_get_mpp,
12701 .dumpit = nl80211_dump_mpp,
12702 .policy = nl80211_policy,
5617c6cd 12703 .flags = GENL_UNS_ADMIN_PERM,
66be7d2b
HR		 12704 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12705 NL80211_FLAG_NEED_RTNL,
12706 },
2ec600d6
LCC		 12707 {
12708 .cmd = NL80211_CMD_SET_MPATH,
12709 .doit = nl80211_set_mpath,
12710 .policy = nl80211_policy,
5617c6cd 12711 .flags = GENL_UNS_ADMIN_PERM,
41265714 12712 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12713 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12714 },
12715 {
12716 .cmd = NL80211_CMD_NEW_MPATH,
12717 .doit = nl80211_new_mpath,
12718 .policy = nl80211_policy,
5617c6cd 12719 .flags = GENL_UNS_ADMIN_PERM,
41265714 12720 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12721 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12722 },
12723 {
12724 .cmd = NL80211_CMD_DEL_MPATH,
12725 .doit = nl80211_del_mpath,
12726 .policy = nl80211_policy,
5617c6cd 12727 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12728 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12729 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 12730 },
12731 {
12732 .cmd = NL80211_CMD_SET_BSS,
12733 .doit = nl80211_set_bss,
12734 .policy = nl80211_policy,
5617c6cd 12735 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12736 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12737 NL80211_FLAG_NEED_RTNL,
b2e1b302 12738 },
f130347c
LR		 12739 {
12740 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 12741 .doit = nl80211_get_reg_do,
12742 .dumpit = nl80211_get_reg_dump,
f130347c 12743 .policy = nl80211_policy,
5fe231e8 12744 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 12745 /* can be retrieved by unprivileged users */
12746 },
b6863036 12747#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 12748 {
12749 .cmd = NL80211_CMD_SET_REG,
12750 .doit = nl80211_set_reg,
12751 .policy = nl80211_policy,
12752 .flags = GENL_ADMIN_PERM,
5fe231e8 12753 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 12754 },
b6863036 12755#endif
b2e1b302
LR		 12756 {
12757 .cmd = NL80211_CMD_REQ_SET_REG,
12758 .doit = nl80211_req_set_reg,
12759 .policy = nl80211_policy,
93da9cc1 12760 .flags = GENL_ADMIN_PERM,
12761 },
1ea4ff3e
JB		 12762 {
12763 .cmd = NL80211_CMD_RELOAD_REGDB,
12764 .doit = nl80211_reload_regdb,
12765 .policy = nl80211_policy,
12766 .flags = GENL_ADMIN_PERM,
12767 },
93da9cc1 12768 {
24bdd9f4
JC		 12769 .cmd = NL80211_CMD_GET_MESH_CONFIG,
12770 .doit = nl80211_get_mesh_config,
93da9cc1 12771 .policy = nl80211_policy,
12772 /* can be retrieved by unprivileged users */
2b5f8b0b 12773 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12774 NL80211_FLAG_NEED_RTNL,
93da9cc1 12775 },
12776 {
24bdd9f4
JC		 12777 .cmd = NL80211_CMD_SET_MESH_CONFIG,
12778 .doit = nl80211_update_mesh_config,
93da9cc1 12779 .policy = nl80211_policy,
5617c6cd 12780 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c 12781 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12782 NL80211_FLAG_NEED_RTNL,
9aed3cc1 12783 },
2a519311
JB		 12784 {
12785 .cmd = NL80211_CMD_TRIGGER_SCAN,
12786 .doit = nl80211_trigger_scan,
12787 .policy = nl80211_policy,
5617c6cd 12788 .flags = GENL_UNS_ADMIN_PERM,
fd014284 12789 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12790 NL80211_FLAG_NEED_RTNL,
2a519311 12791 },
91d3ab46
VK		 12792 {
12793 .cmd = NL80211_CMD_ABORT_SCAN,
12794 .doit = nl80211_abort_scan,
12795 .policy = nl80211_policy,
5617c6cd 12796 .flags = GENL_UNS_ADMIN_PERM,
91d3ab46
VK		 12797 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12798 NL80211_FLAG_NEED_RTNL,
12799 },
2a519311
JB		 12800 {
12801 .cmd = NL80211_CMD_GET_SCAN,
12802 .policy = nl80211_policy,
12803 .dumpit = nl80211_dump_scan,
12804 },
807f8a8c
LC		 12805 {
12806 .cmd = NL80211_CMD_START_SCHED_SCAN,
12807 .doit = nl80211_start_sched_scan,
12808 .policy = nl80211_policy,
5617c6cd 12809 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 12810 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12811 NL80211_FLAG_NEED_RTNL,
12812 },
12813 {
12814 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
12815 .doit = nl80211_stop_sched_scan,
12816 .policy = nl80211_policy,
5617c6cd 12817 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 12818 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12819 NL80211_FLAG_NEED_RTNL,
12820 },
636a5d36
JM		 12821 {
12822 .cmd = NL80211_CMD_AUTHENTICATE,
12823 .doit = nl80211_authenticate,
12824 .policy = nl80211_policy,
5617c6cd 12825 .flags = GENL_UNS_ADMIN_PERM,
41265714 12826 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12827 NL80211_FLAG_NEED_RTNL |
12828 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 12829 },
12830 {
12831 .cmd = NL80211_CMD_ASSOCIATE,
12832 .doit = nl80211_associate,
12833 .policy = nl80211_policy,
5617c6cd 12834 .flags = GENL_UNS_ADMIN_PERM,
41265714 12835 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
a55d0b3d
SD		 12836 NL80211_FLAG_NEED_RTNL |
12837 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 12838 },
12839 {
12840 .cmd = NL80211_CMD_DEAUTHENTICATE,
12841 .doit = nl80211_deauthenticate,
12842 .policy = nl80211_policy,
5617c6cd 12843 .flags = GENL_UNS_ADMIN_PERM,
41265714 12844 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12845 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 12846 },
12847 {
12848 .cmd = NL80211_CMD_DISASSOCIATE,
12849 .doit = nl80211_disassociate,
12850 .policy = nl80211_policy,
5617c6cd 12851 .flags = GENL_UNS_ADMIN_PERM,
41265714 12852 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12853 NL80211_FLAG_NEED_RTNL,
636a5d36 12854 },
04a773ad
JB		 12855 {
12856 .cmd = NL80211_CMD_JOIN_IBSS,
12857 .doit = nl80211_join_ibss,
12858 .policy = nl80211_policy,
5617c6cd 12859 .flags = GENL_UNS_ADMIN_PERM,
41265714 12860 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12861 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 12862 },
12863 {
12864 .cmd = NL80211_CMD_LEAVE_IBSS,
12865 .doit = nl80211_leave_ibss,
12866 .policy = nl80211_policy,
5617c6cd 12867 .flags = GENL_UNS_ADMIN_PERM,
41265714 12868 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12869 NL80211_FLAG_NEED_RTNL,
04a773ad 12870 },
aff89a9b
JB		 12871#ifdef CONFIG_NL80211_TESTMODE
12872 {
12873 .cmd = NL80211_CMD_TESTMODE,
12874 .doit = nl80211_testmode_do,
71063f0e 12875 .dumpit = nl80211_testmode_dump,
aff89a9b 12876 .policy = nl80211_policy,
5617c6cd 12877 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12878 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12879 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 12880 },
12881#endif
b23aa676
SO		 12882 {
12883 .cmd = NL80211_CMD_CONNECT,
12884 .doit = nl80211_connect,
12885 .policy = nl80211_policy,
5617c6cd 12886 .flags = GENL_UNS_ADMIN_PERM,
41265714 12887 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
a55d0b3d
SD		 12888 NL80211_FLAG_NEED_RTNL |
12889 NL80211_FLAG_CLEAR_SKB,
b23aa676 12890 },
088e8df8 12891 {
12892 .cmd = NL80211_CMD_UPDATE_CONNECT_PARAMS,
12893 .doit = nl80211_update_connect_params,
12894 .policy = nl80211_policy,
12895 .flags = GENL_ADMIN_PERM,
12896 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
a55d0b3d
SD		 12897 NL80211_FLAG_NEED_RTNL |
12898 NL80211_FLAG_CLEAR_SKB,
088e8df8 12899 },
b23aa676
SO		 12900 {
12901 .cmd = NL80211_CMD_DISCONNECT,
12902 .doit = nl80211_disconnect,
12903 .policy = nl80211_policy,
5617c6cd 12904 .flags = GENL_UNS_ADMIN_PERM,
41265714 12905 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12906 NL80211_FLAG_NEED_RTNL,
b23aa676 12907 },
463d0183
JB		 12908 {
12909 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
12910 .doit = nl80211_wiphy_netns,
12911 .policy = nl80211_policy,
5617c6cd 12912 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12913 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12914 NL80211_FLAG_NEED_RTNL,
463d0183 12915 },
61fa713c
HS		 12916 {
12917 .cmd = NL80211_CMD_GET_SURVEY,
12918 .policy = nl80211_policy,
12919 .dumpit = nl80211_dump_survey,
12920 },
67fbb16b
SO		 12921 {
12922 .cmd = NL80211_CMD_SET_PMKSA,
12923 .doit = nl80211_setdel_pmksa,
12924 .policy = nl80211_policy,
5617c6cd 12925 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12926 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
a55d0b3d
SD		 12927 NL80211_FLAG_NEED_RTNL |
12928 NL80211_FLAG_CLEAR_SKB,
67fbb16b
SO		 12929 },
12930 {
12931 .cmd = NL80211_CMD_DEL_PMKSA,
12932 .doit = nl80211_setdel_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
SO		 12937 },
12938 {
12939 .cmd = NL80211_CMD_FLUSH_PMKSA,
12940 .doit = nl80211_flush_pmksa,
12941 .policy = nl80211_policy,
5617c6cd 12942 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12943 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12944 NL80211_FLAG_NEED_RTNL,
67fbb16b 12945 },
9588bbd5
JM		 12946 {
12947 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
12948 .doit = nl80211_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
JM		 12953 },
12954 {
12955 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12956 .doit = nl80211_cancel_remain_on_channel,
12957 .policy = nl80211_policy,
5617c6cd 12958 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12959 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12960 NL80211_FLAG_NEED_RTNL,
9588bbd5 12961 },
13ae75b1
JM		 12962 {
12963 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
12964 .doit = nl80211_set_tx_bitrate_mask,
12965 .policy = nl80211_policy,
5617c6cd 12966 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12967 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12968 NL80211_FLAG_NEED_RTNL,
13ae75b1 12969 },
026331c4 12970 {
2e161f78
JB		 12971 .cmd = NL80211_CMD_REGISTER_FRAME,
12972 .doit = nl80211_register_mgmt,
026331c4 12973 .policy = nl80211_policy,
5617c6cd 12974 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12975 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 12976 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 12977 },
12978 {
2e161f78
JB		 12979 .cmd = NL80211_CMD_FRAME,
12980 .doit = nl80211_tx_mgmt,
026331c4 12981 .policy = nl80211_policy,
5617c6cd 12982 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12983 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 12984 NL80211_FLAG_NEED_RTNL,
12985 },
12986 {
12987 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
12988 .doit = nl80211_tx_mgmt_cancel_wait,
12989 .policy = nl80211_policy,
5617c6cd 12990 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12991 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12992 NL80211_FLAG_NEED_RTNL,
026331c4 12993 },
ffb9eb3d
KV		 12994 {
12995 .cmd = NL80211_CMD_SET_POWER_SAVE,
12996 .doit = nl80211_set_power_save,
12997 .policy = nl80211_policy,
5617c6cd 12998 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12999 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13000 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 13001 },
13002 {
13003 .cmd = NL80211_CMD_GET_POWER_SAVE,
13004 .doit = nl80211_get_power_save,
13005 .policy = nl80211_policy,
13006 /* can be retrieved by unprivileged users */
4c476991
JB		 13007 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13008 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 13009 },
d6dc1a38
JO		 13010 {
13011 .cmd = NL80211_CMD_SET_CQM,
13012 .doit = nl80211_set_cqm,
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,
d6dc1a38 13017 },
f444de05
JB		 13018 {
13019 .cmd = NL80211_CMD_SET_CHANNEL,
13020 .doit = nl80211_set_channel,
13021 .policy = nl80211_policy,
5617c6cd 13022 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 13023 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13024 NL80211_FLAG_NEED_RTNL,
f444de05 13025 },
e8347eba
BJ		 13026 {
13027 .cmd = NL80211_CMD_SET_WDS_PEER,
13028 .doit = nl80211_set_wds_peer,
13029 .policy = nl80211_policy,
5617c6cd 13030 .flags = GENL_UNS_ADMIN_PERM,
43b19952
JB		 13031 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13032 NL80211_FLAG_NEED_RTNL,
e8347eba 13033 },
29cbe68c
JB		 13034 {
13035 .cmd = NL80211_CMD_JOIN_MESH,
13036 .doit = nl80211_join_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 },
13042 {
13043 .cmd = NL80211_CMD_LEAVE_MESH,
13044 .doit = nl80211_leave_mesh,
13045 .policy = nl80211_policy,
5617c6cd 13046 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 13047 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13048 NL80211_FLAG_NEED_RTNL,
13049 },
6e0bd6c3
RL		 13050 {
13051 .cmd = NL80211_CMD_JOIN_OCB,
13052 .doit = nl80211_join_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 },
13058 {
13059 .cmd = NL80211_CMD_LEAVE_OCB,
13060 .doit = nl80211_leave_ocb,
13061 .policy = nl80211_policy,
5617c6cd 13062 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 13063 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13064 NL80211_FLAG_NEED_RTNL,
13065 },
dfb89c56 13066#ifdef CONFIG_PM
ff1b6e69
JB		 13067 {
13068 .cmd = NL80211_CMD_GET_WOWLAN,
13069 .doit = nl80211_get_wowlan,
13070 .policy = nl80211_policy,
13071 /* can be retrieved by unprivileged users */
13072 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13073 NL80211_FLAG_NEED_RTNL,
13074 },
13075 {
13076 .cmd = NL80211_CMD_SET_WOWLAN,
13077 .doit = nl80211_set_wowlan,
13078 .policy = nl80211_policy,
5617c6cd 13079 .flags = GENL_UNS_ADMIN_PERM,
ff1b6e69
JB		 13080 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13081 NL80211_FLAG_NEED_RTNL,
13082 },
dfb89c56 13083#endif
e5497d76
JB		 13084 {
13085 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
13086 .doit = nl80211_set_rekey_data,
13087 .policy = nl80211_policy,
5617c6cd 13088 .flags = GENL_UNS_ADMIN_PERM,
e5497d76 13089 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 13090 NL80211_FLAG_NEED_RTNL |
13091 NL80211_FLAG_CLEAR_SKB,
e5497d76 13092 },
109086ce
AN		 13093 {
13094 .cmd = NL80211_CMD_TDLS_MGMT,
13095 .doit = nl80211_tdls_mgmt,
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 },
13101 {
13102 .cmd = NL80211_CMD_TDLS_OPER,
13103 .doit = nl80211_tdls_oper,
13104 .policy = nl80211_policy,
5617c6cd 13105 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 13106 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13107 NL80211_FLAG_NEED_RTNL,
13108 },
28946da7
JB		 13109 {
13110 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
13111 .doit = nl80211_register_unexpected_frame,
13112 .policy = nl80211_policy,
5617c6cd 13113 .flags = GENL_UNS_ADMIN_PERM,
28946da7
JB		 13114 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13115 NL80211_FLAG_NEED_RTNL,
13116 },
7f6cf311
JB		 13117 {
13118 .cmd = NL80211_CMD_PROBE_CLIENT,
13119 .doit = nl80211_probe_client,
13120 .policy = nl80211_policy,
5617c6cd 13121 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 13122 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 13123 NL80211_FLAG_NEED_RTNL,
13124 },
5e760230
JB		 13125 {
13126 .cmd = NL80211_CMD_REGISTER_BEACONS,
13127 .doit = nl80211_register_beacons,
13128 .policy = nl80211_policy,
5617c6cd 13129 .flags = GENL_UNS_ADMIN_PERM,
5e760230
JB		 13130 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13131 NL80211_FLAG_NEED_RTNL,
13132 },
1d9d9213
SW		 13133 {
13134 .cmd = NL80211_CMD_SET_NOACK_MAP,
13135 .doit = nl80211_set_noack_map,
13136 .policy = nl80211_policy,
5617c6cd 13137 .flags = GENL_UNS_ADMIN_PERM,
1d9d9213
SW		 13138 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13139 NL80211_FLAG_NEED_RTNL,
13140 },
98104fde
JB		 13141 {
13142 .cmd = NL80211_CMD_START_P2P_DEVICE,
13143 .doit = nl80211_start_p2p_device,
13144 .policy = nl80211_policy,
5617c6cd 13145 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 13146 .internal_flags = NL80211_FLAG_NEED_WDEV |
13147 NL80211_FLAG_NEED_RTNL,
13148 },
13149 {
13150 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
13151 .doit = nl80211_stop_p2p_device,
13152 .policy = nl80211_policy,
5617c6cd 13153 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 13154 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13155 NL80211_FLAG_NEED_RTNL,
cb3b7d87
AB		 13156 },
13157 {
13158 .cmd = NL80211_CMD_START_NAN,
13159 .doit = nl80211_start_nan,
13160 .policy = nl80211_policy,
13161 .flags = GENL_ADMIN_PERM,
13162 .internal_flags = NL80211_FLAG_NEED_WDEV |
13163 NL80211_FLAG_NEED_RTNL,
13164 },
13165 {
13166 .cmd = NL80211_CMD_STOP_NAN,
13167 .doit = nl80211_stop_nan,
13168 .policy = nl80211_policy,
13169 .flags = GENL_ADMIN_PERM,
13170 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13171 NL80211_FLAG_NEED_RTNL,
a442b761
AB		 13172 },
13173 {
13174 .cmd = NL80211_CMD_ADD_NAN_FUNCTION,
13175 .doit = nl80211_nan_add_func,
13176 .policy = nl80211_policy,
13177 .flags = GENL_ADMIN_PERM,
13178 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13179 NL80211_FLAG_NEED_RTNL,
13180 },
13181 {
13182 .cmd = NL80211_CMD_DEL_NAN_FUNCTION,
13183 .doit = nl80211_nan_del_func,
13184 .policy = nl80211_policy,
13185 .flags = GENL_ADMIN_PERM,
13186 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13187 NL80211_FLAG_NEED_RTNL,
a5a9dcf2
AB		 13188 },
13189 {
13190 .cmd = NL80211_CMD_CHANGE_NAN_CONFIG,
13191 .doit = nl80211_nan_change_config,
13192 .policy = nl80211_policy,
13193 .flags = GENL_ADMIN_PERM,
13194 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13195 NL80211_FLAG_NEED_RTNL,
98104fde 13196 },
f4e583c8
AQ		 13197 {
13198 .cmd = NL80211_CMD_SET_MCAST_RATE,
13199 .doit = nl80211_set_mcast_rate,
77765eaf 13200 .policy = nl80211_policy,
5617c6cd 13201 .flags = GENL_UNS_ADMIN_PERM,
77765eaf
VT		 13202 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13203 NL80211_FLAG_NEED_RTNL,
13204 },
13205 {
13206 .cmd = NL80211_CMD_SET_MAC_ACL,
13207 .doit = nl80211_set_mac_acl,
f4e583c8 13208 .policy = nl80211_policy,
5617c6cd 13209 .flags = GENL_UNS_ADMIN_PERM,
f4e583c8
AQ		 13210 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13211 NL80211_FLAG_NEED_RTNL,
13212 },
04f39047
SW		 13213 {
13214 .cmd = NL80211_CMD_RADAR_DETECT,
13215 .doit = nl80211_start_radar_detection,
13216 .policy = nl80211_policy,
5617c6cd 13217 .flags = GENL_UNS_ADMIN_PERM,
04f39047
SW		 13218 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13219 NL80211_FLAG_NEED_RTNL,
13220 },
3713b4e3
JB		 13221 {
13222 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
13223 .doit = nl80211_get_protocol_features,
13224 .policy = nl80211_policy,
13225 },
355199e0
JM		 13226 {
13227 .cmd = NL80211_CMD_UPDATE_FT_IES,
13228 .doit = nl80211_update_ft_ies,
13229 .policy = nl80211_policy,
5617c6cd 13230 .flags = GENL_UNS_ADMIN_PERM,
355199e0
JM		 13231 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13232 NL80211_FLAG_NEED_RTNL,
13233 },
5de17984
AS		 13234 {
13235 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
13236 .doit = nl80211_crit_protocol_start,
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,
13241 },
13242 {
13243 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
13244 .doit = nl80211_crit_protocol_stop,
13245 .policy = nl80211_policy,
5617c6cd 13246 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 13247 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13248 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 13249 },
13250 {
13251 .cmd = NL80211_CMD_GET_COALESCE,
13252 .doit = nl80211_get_coalesce,
13253 .policy = nl80211_policy,
13254 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13255 NL80211_FLAG_NEED_RTNL,
13256 },
13257 {
13258 .cmd = NL80211_CMD_SET_COALESCE,
13259 .doit = nl80211_set_coalesce,
13260 .policy = nl80211_policy,
5617c6cd 13261 .flags = GENL_UNS_ADMIN_PERM,
be29b99a
AK		 13262 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13263 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 13264 },
13265 {
13266 .cmd = NL80211_CMD_CHANNEL_SWITCH,
13267 .doit = nl80211_channel_switch,
13268 .policy = nl80211_policy,
5617c6cd 13269 .flags = GENL_UNS_ADMIN_PERM,
16ef1fe2
SW		 13270 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13271 NL80211_FLAG_NEED_RTNL,
13272 },
ad7e718c
JB		 13273 {
13274 .cmd = NL80211_CMD_VENDOR,
13275 .doit = nl80211_vendor_cmd,
7bdbe400 13276 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c 13277 .policy = nl80211_policy,
5617c6cd 13278 .flags = GENL_UNS_ADMIN_PERM,
ad7e718c 13279 .internal_flags = NL80211_FLAG_NEED_WIPHY |
a55d0b3d
SD		 13280 NL80211_FLAG_NEED_RTNL |
13281 NL80211_FLAG_CLEAR_SKB,
ad7e718c 13282 },
fa9ffc74
KP		 13283 {
13284 .cmd = NL80211_CMD_SET_QOS_MAP,
13285 .doit = nl80211_set_qos_map,
13286 .policy = nl80211_policy,
5617c6cd 13287 .flags = GENL_UNS_ADMIN_PERM,
fa9ffc74
KP		 13288 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13289 NL80211_FLAG_NEED_RTNL,
13290 },
960d01ac
JB		 13291 {
13292 .cmd = NL80211_CMD_ADD_TX_TS,
13293 .doit = nl80211_add_tx_ts,
13294 .policy = nl80211_policy,
5617c6cd 13295 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 13296 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13297 NL80211_FLAG_NEED_RTNL,
13298 },
13299 {
13300 .cmd = NL80211_CMD_DEL_TX_TS,
13301 .doit = nl80211_del_tx_ts,
13302 .policy = nl80211_policy,
5617c6cd 13303 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 13304 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13305 NL80211_FLAG_NEED_RTNL,
13306 },
1057d35e
AN		 13307 {
13308 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
13309 .doit = nl80211_tdls_channel_switch,
13310 .policy = nl80211_policy,
5617c6cd 13311 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 13312 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13313 NL80211_FLAG_NEED_RTNL,
13314 },
13315 {
13316 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
13317 .doit = nl80211_tdls_cancel_channel_switch,
13318 .policy = nl80211_policy,
5617c6cd 13319 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 13320 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13321 NL80211_FLAG_NEED_RTNL,
13322 },
ce0ce13a
MB		 13323 {
13324 .cmd = NL80211_CMD_SET_MULTICAST_TO_UNICAST,
13325 .doit = nl80211_set_multicast_to_unicast,
13326 .policy = nl80211_policy,
13327 .flags = GENL_UNS_ADMIN_PERM,
13328 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13329 NL80211_FLAG_NEED_RTNL,
13330 },
3a00df57
AS		 13331 {
13332 .cmd = NL80211_CMD_SET_PMK,
13333 .doit = nl80211_set_pmk,
13334 .policy = nl80211_policy,
13335 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
a55d0b3d
SD		 13336 NL80211_FLAG_NEED_RTNL |
13337 NL80211_FLAG_CLEAR_SKB,
3a00df57
AS		 13338 },
13339 {
13340 .cmd = NL80211_CMD_DEL_PMK,
13341 .doit = nl80211_del_pmk,
13342 .policy = nl80211_policy,
13343 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13344 NL80211_FLAG_NEED_RTNL,
13345 },
13346
55682965 13347};
9588bbd5 13348
56989f6d 13349static struct genl_family nl80211_fam __ro_after_init = {
489111e5
JB		 13350 .name = NL80211_GENL_NAME, /* have users key off the name instead */
13351 .hdrsize = 0, /* no private header */
13352 .version = 1, /* no particular meaning now */
13353 .maxattr = NL80211_ATTR_MAX,
13354 .netnsok = true,
13355 .pre_doit = nl80211_pre_doit,
13356 .post_doit = nl80211_post_doit,
13357 .module = THIS_MODULE,
13358 .ops = nl80211_ops,
13359 .n_ops = ARRAY_SIZE(nl80211_ops),
13360 .mcgrps = nl80211_mcgrps,
13361 .n_mcgrps = ARRAY_SIZE(nl80211_mcgrps),
13362};
13363
55682965
JB		 13364/* notification functions */
13365
3bb20556
JB		 13366void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
13367 enum nl80211_commands cmd)
55682965
JB		 13368{
13369 struct sk_buff *msg;
86e8cf98 13370 struct nl80211_dump_wiphy_state state = {};
55682965 13371
3bb20556
JB		 13372 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
13373 cmd != NL80211_CMD_DEL_WIPHY);
13374
fd2120ca 13375 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 13376 if (!msg)
13377 return;
13378
3bb20556 13379 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 13380 nlmsg_free(msg);
13381 return;
13382 }
13383
68eb5503 13384 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13385 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 13386}
13387
896ff063
DK		 13388void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
13389 struct wireless_dev *wdev,
13390 enum nl80211_commands cmd)
13391{
13392 struct sk_buff *msg;
13393
13394 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
13395 cmd != NL80211_CMD_DEL_INTERFACE);
13396
13397 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13398 if (!msg)
13399 return;
13400
13401 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
13402 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
13403 nlmsg_free(msg);
13404 return;
13405 }
13406
13407 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13408 NL80211_MCGRP_CONFIG, GFP_KERNEL);
13409}
13410
362a415d
JB		 13411static int nl80211_add_scan_req(struct sk_buff *msg,
13412 struct cfg80211_registered_device *rdev)
13413{
13414 struct cfg80211_scan_request *req = rdev->scan_req;
13415 struct nlattr *nest;
13416 int i;
13417
13418 if (WARN_ON(!req))
13419 return 0;
13420
13421 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
13422 if (!nest)
13423 goto nla_put_failure;
9360ffd1
DM		 13424 for (i = 0; i < req->n_ssids; i++) {
13425 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
13426 goto nla_put_failure;
13427 }
362a415d
JB		 13428 nla_nest_end(msg, nest);
13429
13430 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
13431 if (!nest)
13432 goto nla_put_failure;
9360ffd1
DM		 13433 for (i = 0; i < req->n_channels; i++) {
13434 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
13435 goto nla_put_failure;
13436 }
362a415d
JB		 13437 nla_nest_end(msg, nest);
13438
9360ffd1
DM		 13439 if (req->ie &&
13440 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
13441 goto nla_put_failure;
362a415d 13442
ae917c9f
JB		 13443 if (req->flags &&
13444 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
13445 goto nla_put_failure;
ed473771 13446
1d76250b
AS		 13447 if (req->info.scan_start_tsf &&
13448 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
13449 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
13450 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
13451 req->info.tsf_bssid)))
13452 goto nla_put_failure;
13453
362a415d
JB		 13454 return 0;
13455 nla_put_failure:
13456 return -ENOBUFS;
13457}
13458
505a2e88 13459static int nl80211_prep_scan_msg(struct sk_buff *msg,
a538e2d5 13460 struct cfg80211_registered_device *rdev,
fd014284 13461 struct wireless_dev *wdev,
15e47304 13462 u32 portid, u32 seq, int flags,
a538e2d5 13463 u32 cmd)
2a519311
JB		 13464{
13465 void *hdr;
13466
15e47304 13467 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 13468 if (!hdr)
13469 return -1;
13470
9360ffd1 13471 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 13472 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13473 wdev->netdev->ifindex)) ||
2dad624e
ND		 13474 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13475 NL80211_ATTR_PAD))
9360ffd1 13476 goto nla_put_failure;
2a519311 13477
362a415d
JB		 13478 /* ignore errors and send incomplete event anyway */
13479 nl80211_add_scan_req(msg, rdev);
2a519311 13480
053c095a
JB		 13481 genlmsg_end(msg, hdr);
13482 return 0;
2a519311
JB		 13483
13484 nla_put_failure:
13485 genlmsg_cancel(msg, hdr);
13486 return -EMSGSIZE;
13487}
13488
807f8a8c 13489static int
505a2e88 13490nl80211_prep_sched_scan_msg(struct sk_buff *msg,
96b08fd6 13491 struct cfg80211_sched_scan_request *req, u32 cmd)
807f8a8c
LC		 13492{
13493 void *hdr;
13494
96b08fd6 13495 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
807f8a8c
LC		 13496 if (!hdr)
13497 return -1;
13498
96b08fd6
AVS		 13499 if (nla_put_u32(msg, NL80211_ATTR_WIPHY,
13500 wiphy_to_rdev(req->wiphy)->wiphy_idx) ||
13501 nla_put_u32(msg, NL80211_ATTR_IFINDEX, req->dev->ifindex) ||
13502 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, req->reqid,
13503 NL80211_ATTR_PAD))
9360ffd1 13504 goto nla_put_failure;
807f8a8c 13505
053c095a
JB		 13506 genlmsg_end(msg, hdr);
13507 return 0;
807f8a8c
LC		 13508
13509 nla_put_failure:
13510 genlmsg_cancel(msg, hdr);
13511 return -EMSGSIZE;
13512}
13513
a538e2d5 13514void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 13515 struct wireless_dev *wdev)
a538e2d5
JB		 13516{
13517 struct sk_buff *msg;
13518
58050fce 13519 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 13520 if (!msg)
13521 return;
13522
505a2e88 13523 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 13524 NL80211_CMD_TRIGGER_SCAN) < 0) {
13525 nlmsg_free(msg);
13526 return;
13527 }
13528
68eb5503 13529 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13530 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 13531}
13532
f9d15d16
JB		 13533struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
13534 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 13535{
13536 struct sk_buff *msg;
13537
fd2120ca 13538 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 13539 if (!msg)
f9d15d16 13540 return NULL;
2a519311 13541
505a2e88 13542 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 13543 aborted ? NL80211_CMD_SCAN_ABORTED :
13544 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 13545 nlmsg_free(msg);
f9d15d16 13546 return NULL;
2a519311
JB		 13547 }
13548
f9d15d16 13549 return msg;
2a519311
JB		 13550}
13551
505a2e88
AVS		 13552/* send message created by nl80211_build_scan_msg() */
13553void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev,
13554 struct sk_buff *msg)
807f8a8c 13555{
807f8a8c
LC		 13556 if (!msg)
13557 return;
13558
68eb5503 13559 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13560 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 13561}
13562
96b08fd6 13563void nl80211_send_sched_scan(struct cfg80211_sched_scan_request *req, u32 cmd)
807f8a8c
LC		 13564{
13565 struct sk_buff *msg;
13566
58050fce 13567 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 13568 if (!msg)
13569 return;
13570
96b08fd6 13571 if (nl80211_prep_sched_scan_msg(msg, req, cmd) < 0) {
807f8a8c
LC		 13572 nlmsg_free(msg);
13573 return;
13574 }
13575
96b08fd6 13576 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(req->wiphy), msg, 0,
2a94fe48 13577 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 13578}
13579
b0d7aa59
JD		 13580static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
13581 struct regulatory_request *request)
73d54c9e 13582{
73d54c9e 13583 /* Userspace can always count this one always being set */
9360ffd1
DM		 13584 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
13585 goto nla_put_failure;
13586
13587 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
13588 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13589 NL80211_REGDOM_TYPE_WORLD))
13590 goto nla_put_failure;
13591 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
13592 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13593 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
13594 goto nla_put_failure;
13595 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
13596 request->intersect) {
13597 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13598 NL80211_REGDOM_TYPE_INTERSECTION))
13599 goto nla_put_failure;
13600 } else {
13601 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13602 NL80211_REGDOM_TYPE_COUNTRY) ||
13603 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
13604 request->alpha2))
13605 goto nla_put_failure;
13606 }
13607
ad30ca2c
AN		 13608 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
13609 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
13610
13611 if (wiphy &&
13612 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
13613 goto nla_put_failure;
1bdd716c
AN		 13614
13615 if (wiphy &&
13616 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
13617 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
13618 goto nla_put_failure;
ad30ca2c 13619 }
73d54c9e 13620
b0d7aa59
JD		 13621 return true;
13622
13623nla_put_failure:
13624 return false;
13625}
13626
13627/*
13628 * This can happen on global regulatory changes or device specific settings
13629 * based on custom regulatory domains.
13630 */
13631void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
13632 struct regulatory_request *request)
13633{
13634 struct sk_buff *msg;
13635 void *hdr;
13636
13637 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13638 if (!msg)
13639 return;
13640
13641 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
13642 if (!hdr) {
13643 nlmsg_free(msg);
13644 return;
13645 }
13646
13647 if (nl80211_reg_change_event_fill(msg, request) == false)
13648 goto nla_put_failure;
13649
3b7b72ee 13650 genlmsg_end(msg, hdr);
73d54c9e 13651
bc43b28c 13652 rcu_read_lock();
68eb5503 13653 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 13654 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 13655 rcu_read_unlock();
73d54c9e
LR		 13656
13657 return;
13658
13659nla_put_failure:
13660 genlmsg_cancel(msg, hdr);
13661 nlmsg_free(msg);
13662}
13663
6039f6d2
JM		 13664static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
13665 struct net_device *netdev,
13666 const u8 *buf, size_t len,
b0b6aa2c
EP		 13667 enum nl80211_commands cmd, gfp_t gfp,
13668 int uapsd_queues)
6039f6d2
JM		 13669{
13670 struct sk_buff *msg;
13671 void *hdr;
13672
4ef8c1c9 13673 msg = nlmsg_new(100 + len, gfp);
6039f6d2
JM		 13674 if (!msg)
13675 return;
13676
13677 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13678 if (!hdr) {
13679 nlmsg_free(msg);
13680 return;
13681 }
13682
9360ffd1
DM		 13683 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13684 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13685 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
13686 goto nla_put_failure;
6039f6d2 13687
b0b6aa2c
EP		 13688 if (uapsd_queues >= 0) {
13689 struct nlattr *nla_wmm =
13690 nla_nest_start(msg, NL80211_ATTR_STA_WME);
13691 if (!nla_wmm)
13692 goto nla_put_failure;
13693
13694 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
13695 uapsd_queues))
13696 goto nla_put_failure;
13697
13698 nla_nest_end(msg, nla_wmm);
13699 }
13700
3b7b72ee 13701 genlmsg_end(msg, hdr);
6039f6d2 13702
68eb5503 13703 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13704 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 13705 return;
13706
13707 nla_put_failure:
13708 genlmsg_cancel(msg, hdr);
13709 nlmsg_free(msg);
13710}
13711
13712void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13713 struct net_device *netdev, const u8 *buf,
13714 size_t len, gfp_t gfp)
6039f6d2
JM		 13715{
13716 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13717 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 13718}
13719
13720void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
13721 struct net_device *netdev, const u8 *buf,
b0b6aa2c 13722 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 13723{
e6d6e342 13724 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13725 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 13726}
13727
53b46b84 13728void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13729 struct net_device *netdev, const u8 *buf,
13730 size_t len, gfp_t gfp)
6039f6d2
JM		 13731{
13732 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13733 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 13734}
13735
53b46b84
JM		 13736void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
13737 struct net_device *netdev, const u8 *buf,
e6d6e342 13738 size_t len, gfp_t gfp)
6039f6d2
JM		 13739{
13740 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13741 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 13742}
13743
6ff57cf8
JB		 13744void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
13745 size_t len)
cf4e594e 13746{
947add36
JB		 13747 struct wireless_dev *wdev = dev->ieee80211_ptr;
13748 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13749 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 13750 const struct ieee80211_mgmt *mgmt = (void *)buf;
13751 u32 cmd;
947add36 13752
6ff57cf8
JB		 13753 if (WARN_ON(len < 2))
13754 return;
cf4e594e 13755
6ff57cf8
JB		 13756 if (ieee80211_is_deauth(mgmt->frame_control))
13757 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
13758 else
13759 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 13760
6ff57cf8 13761 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 13762 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 13763}
6ff57cf8 13764EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 13765
1b06bb40
LR		 13766static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
13767 struct net_device *netdev, int cmd,
e6d6e342 13768 const u8 *addr, gfp_t gfp)
1965c853
JM		 13769{
13770 struct sk_buff *msg;
13771 void *hdr;
13772
e6d6e342 13773 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 13774 if (!msg)
13775 return;
13776
13777 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13778 if (!hdr) {
13779 nlmsg_free(msg);
13780 return;
13781 }
13782
9360ffd1
DM		 13783 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13784 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13785 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13786 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13787 goto nla_put_failure;
1965c853 13788
3b7b72ee 13789 genlmsg_end(msg, hdr);
1965c853 13790
68eb5503 13791 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13792 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 13793 return;
13794
13795 nla_put_failure:
13796 genlmsg_cancel(msg, hdr);
13797 nlmsg_free(msg);
13798}
13799
13800void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13801 struct net_device *netdev, const u8 *addr,
13802 gfp_t gfp)
1965c853
JM		 13803{
13804 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 13805 addr, gfp);
1965c853
JM		 13806}
13807
13808void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13809 struct net_device *netdev, const u8 *addr,
13810 gfp_t gfp)
1965c853 13811{
e6d6e342
JB		 13812 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
13813 addr, gfp);
1965c853
JM		 13814}
13815
b23aa676 13816void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5349a0f7
VK		 13817 struct net_device *netdev,
13818 struct cfg80211_connect_resp_params *cr,
3093ebbe 13819 gfp_t gfp)
b23aa676
SO		 13820{
13821 struct sk_buff *msg;
13822 void *hdr;
13823
a3caf744
VK		 13824 msg = nlmsg_new(100 + cr->req_ie_len + cr->resp_ie_len +
13825 cr->fils_kek_len + cr->pmk_len +
13826 (cr->pmkid ? WLAN_PMKID_LEN : 0), gfp);
b23aa676
SO		 13827 if (!msg)
13828 return;
13829
13830 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
13831 if (!hdr) {
13832 nlmsg_free(msg);
13833 return;
13834 }
13835
9360ffd1
DM		 13836 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13837 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
5349a0f7
VK		 13838 (cr->bssid &&
13839 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, cr->bssid)) ||
bf1ecd21 13840 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
5349a0f7
VK		 13841 cr->status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
13842 cr->status) ||
13843 (cr->status < 0 &&
3093ebbe 13844 (nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
5349a0f7
VK		 13845 nla_put_u32(msg, NL80211_ATTR_TIMEOUT_REASON,
13846 cr->timeout_reason))) ||
13847 (cr->req_ie &&
13848 nla_put(msg, NL80211_ATTR_REQ_IE, cr->req_ie_len, cr->req_ie)) ||
13849 (cr->resp_ie &&
13850 nla_put(msg, NL80211_ATTR_RESP_IE, cr->resp_ie_len,
a3caf744
VK		 13851 cr->resp_ie)) ||
13852 (cr->update_erp_next_seq_num &&
13853 nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM,
13854 cr->fils_erp_next_seq_num)) ||
13855 (cr->status == WLAN_STATUS_SUCCESS &&
13856 ((cr->fils_kek &&
13857 nla_put(msg, NL80211_ATTR_FILS_KEK, cr->fils_kek_len,
13858 cr->fils_kek)) ||
13859 (cr->pmk &&
13860 nla_put(msg, NL80211_ATTR_PMK, cr->pmk_len, cr->pmk)) ||
13861 (cr->pmkid &&
13862 nla_put(msg, NL80211_ATTR_PMKID, WLAN_PMKID_LEN, cr->pmkid)))))
9360ffd1 13863 goto nla_put_failure;
b23aa676 13864
3b7b72ee 13865 genlmsg_end(msg, hdr);
b23aa676 13866
68eb5503 13867 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13868 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 13869 return;
13870
13871 nla_put_failure:
13872 genlmsg_cancel(msg, hdr);
13873 nlmsg_free(msg);
b23aa676
SO		 13874}
13875
13876void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
29ce6ecb
AS		 13877 struct net_device *netdev,
13878 struct cfg80211_roam_info *info, gfp_t gfp)
b23aa676
SO		 13879{
13880 struct sk_buff *msg;
13881 void *hdr;
29ce6ecb 13882 const u8 *bssid = info->bss ? info->bss->bssid : info->bssid;
b23aa676 13883
29ce6ecb 13884 msg = nlmsg_new(100 + info->req_ie_len + info->resp_ie_len, gfp);
b23aa676
SO		 13885 if (!msg)
13886 return;
13887
13888 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
13889 if (!hdr) {
13890 nlmsg_free(msg);
13891 return;
13892 }
13893
9360ffd1
DM		 13894 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13895 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13896 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
29ce6ecb
AS		 13897 (info->req_ie &&
13898 nla_put(msg, NL80211_ATTR_REQ_IE, info->req_ie_len,
13899 info->req_ie)) ||
13900 (info->resp_ie &&
13901 nla_put(msg, NL80211_ATTR_RESP_IE, info->resp_ie_len,
503c1fb9 13902 info->resp_ie)))
9360ffd1 13903 goto nla_put_failure;
b23aa676 13904
3b7b72ee 13905 genlmsg_end(msg, hdr);
b23aa676 13906
68eb5503 13907 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13908 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 13909 return;
13910
503c1fb9
AS		 13911 nla_put_failure:
13912 genlmsg_cancel(msg, hdr);
13913 nlmsg_free(msg);
13914}
13915
13916void nl80211_send_port_authorized(struct cfg80211_registered_device *rdev,
13917 struct net_device *netdev, const u8 *bssid)
13918{
13919 struct sk_buff *msg;
13920 void *hdr;
13921
13922 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13923 if (!msg)
13924 return;
13925
13926 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PORT_AUTHORIZED);
13927 if (!hdr) {
13928 nlmsg_free(msg);
13929 return;
13930 }
13931
13932 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13933 goto nla_put_failure;
13934
13935 genlmsg_end(msg, hdr);
13936
13937 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13938 NL80211_MCGRP_MLME, GFP_KERNEL);
13939 return;
13940
b23aa676
SO		 13941 nla_put_failure:
13942 genlmsg_cancel(msg, hdr);
13943 nlmsg_free(msg);
b23aa676
SO		 13944}
13945
13946void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
13947 struct net_device *netdev, u16 reason,
667503dd 13948 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 13949{
13950 struct sk_buff *msg;
13951 void *hdr;
13952
4ef8c1c9 13953 msg = nlmsg_new(100 + ie_len, GFP_KERNEL);
b23aa676
SO		 13954 if (!msg)
13955 return;
13956
13957 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
13958 if (!hdr) {
13959 nlmsg_free(msg);
13960 return;
13961 }
13962
9360ffd1
DM		 13963 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13964 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13965 (from_ap && reason &&
13966 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
13967 (from_ap &&
13968 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
13969 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
13970 goto nla_put_failure;
b23aa676 13971
3b7b72ee 13972 genlmsg_end(msg, hdr);
b23aa676 13973
68eb5503 13974 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13975 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 13976 return;
13977
13978 nla_put_failure:
13979 genlmsg_cancel(msg, hdr);
13980 nlmsg_free(msg);
b23aa676
SO		 13981}
13982
04a773ad
JB		 13983void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
13984 struct net_device *netdev, const u8 *bssid,
13985 gfp_t gfp)
13986{
13987 struct sk_buff *msg;
13988 void *hdr;
13989
fd2120ca 13990 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 13991 if (!msg)
13992 return;
13993
13994 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
13995 if (!hdr) {
13996 nlmsg_free(msg);
13997 return;
13998 }
13999
9360ffd1
DM		 14000 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14001 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14002 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14003 goto nla_put_failure;
04a773ad 14004
3b7b72ee 14005 genlmsg_end(msg, hdr);
04a773ad 14006
68eb5503 14007 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14008 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 14009 return;
14010
14011 nla_put_failure:
14012 genlmsg_cancel(msg, hdr);
14013 nlmsg_free(msg);
14014}
14015
947add36
JB		 14016void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
14017 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 14018{
947add36 14019 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14020 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 14021 struct sk_buff *msg;
14022 void *hdr;
14023
947add36
JB		 14024 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
14025 return;
14026
14027 trace_cfg80211_notify_new_peer_candidate(dev, addr);
14028
4ef8c1c9 14029 msg = nlmsg_new(100 + ie_len, gfp);
c93b5e71
JC		 14030 if (!msg)
14031 return;
14032
14033 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
14034 if (!hdr) {
14035 nlmsg_free(msg);
14036 return;
14037 }
14038
9360ffd1 14039 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 14040 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14041 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 14042 (ie_len && ie &&
14043 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
14044 goto nla_put_failure;
c93b5e71 14045
3b7b72ee 14046 genlmsg_end(msg, hdr);
c93b5e71 14047
68eb5503 14048 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14049 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 14050 return;
14051
14052 nla_put_failure:
14053 genlmsg_cancel(msg, hdr);
14054 nlmsg_free(msg);
14055}
947add36 14056EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 14057
a3b8b056
JM		 14058void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
14059 struct net_device *netdev, const u8 *addr,
14060 enum nl80211_key_type key_type, int key_id,
e6d6e342 14061 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 14062{
14063 struct sk_buff *msg;
14064 void *hdr;
14065
e6d6e342 14066 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 14067 if (!msg)
14068 return;
14069
14070 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
14071 if (!hdr) {
14072 nlmsg_free(msg);
14073 return;
14074 }
14075
9360ffd1
DM		 14076 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14077 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14078 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
14079 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
14080 (key_id != -1 &&
14081 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
14082 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
14083 goto nla_put_failure;
a3b8b056 14084
3b7b72ee 14085 genlmsg_end(msg, hdr);
a3b8b056 14086
68eb5503 14087 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14088 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 14089 return;
14090
14091 nla_put_failure:
14092 genlmsg_cancel(msg, hdr);
14093 nlmsg_free(msg);
14094}
14095
6bad8766
LR		 14096void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
14097 struct ieee80211_channel *channel_before,
14098 struct ieee80211_channel *channel_after)
14099{
14100 struct sk_buff *msg;
14101 void *hdr;
14102 struct nlattr *nl_freq;
14103
fd2120ca 14104 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 14105 if (!msg)
14106 return;
14107
14108 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
14109 if (!hdr) {
14110 nlmsg_free(msg);
14111 return;
14112 }
14113
14114 /*
14115 * Since we are applying the beacon hint to a wiphy we know its
14116 * wiphy_idx is valid
14117 */
9360ffd1
DM		 14118 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
14119 goto nla_put_failure;
6bad8766
LR		 14120
14121 /* Before */
14122 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
14123 if (!nl_freq)
14124 goto nla_put_failure;
cdc89b97 14125 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 14126 goto nla_put_failure;
14127 nla_nest_end(msg, nl_freq);
14128
14129 /* After */
14130 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
14131 if (!nl_freq)
14132 goto nla_put_failure;
cdc89b97 14133 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 14134 goto nla_put_failure;
14135 nla_nest_end(msg, nl_freq);
14136
3b7b72ee 14137 genlmsg_end(msg, hdr);
6bad8766 14138
463d0183 14139 rcu_read_lock();
68eb5503 14140 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 14141 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 14142 rcu_read_unlock();
6bad8766
LR		 14143
14144 return;
14145
14146nla_put_failure:
14147 genlmsg_cancel(msg, hdr);
14148 nlmsg_free(msg);
14149}
14150
9588bbd5
JM		 14151static void nl80211_send_remain_on_chan_event(
14152 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 14153 struct wireless_dev *wdev, u64 cookie,
9588bbd5 14154 struct ieee80211_channel *chan,
9588bbd5
JM		 14155 unsigned int duration, gfp_t gfp)
14156{
14157 struct sk_buff *msg;
14158 void *hdr;
14159
14160 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14161 if (!msg)
14162 return;
14163
14164 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14165 if (!hdr) {
14166 nlmsg_free(msg);
14167 return;
14168 }
14169
9360ffd1 14170 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 14171 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14172 wdev->netdev->ifindex)) ||
2dad624e
ND		 14173 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14174 NL80211_ATTR_PAD) ||
9360ffd1 14175 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 14176 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
14177 NL80211_CHAN_NO_HT) ||
2dad624e
ND		 14178 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14179 NL80211_ATTR_PAD))
9360ffd1 14180 goto nla_put_failure;
9588bbd5 14181
9360ffd1
DM		 14182 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
14183 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
14184 goto nla_put_failure;
9588bbd5 14185
3b7b72ee 14186 genlmsg_end(msg, hdr);
9588bbd5 14187
68eb5503 14188 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14189 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 14190 return;
14191
14192 nla_put_failure:
14193 genlmsg_cancel(msg, hdr);
14194 nlmsg_free(msg);
14195}
14196
947add36
JB		 14197void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
14198 struct ieee80211_channel *chan,
14199 unsigned int duration, gfp_t gfp)
9588bbd5 14200{
947add36 14201 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14202 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14203
14204 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 14205 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 14206 rdev, wdev, cookie, chan,
42d97a59 14207 duration, gfp);
9588bbd5 14208}
947add36 14209EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 14210
947add36
JB		 14211void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
14212 struct ieee80211_channel *chan,
14213 gfp_t gfp)
9588bbd5 14214{
947add36 14215 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14216 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14217
14218 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 14219 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 14220 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 14221}
947add36 14222EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 14223
947add36
JB		 14224void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
14225 struct station_info *sinfo, gfp_t gfp)
98b62183 14226{
947add36 14227 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 14228 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 14229 struct sk_buff *msg;
14230
947add36
JB		 14231 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
14232
58050fce 14233 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 14234 if (!msg)
14235 return;
14236
cf5ead82 14237 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 14238 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 14239 nlmsg_free(msg);
14240 return;
14241 }
14242
68eb5503 14243 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14244 NL80211_MCGRP_MLME, gfp);
98b62183 14245}
947add36 14246EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 14247
cf5ead82
JB		 14248void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
14249 struct station_info *sinfo, gfp_t gfp)
ec15e68b 14250{
947add36 14251 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 14252 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 14253 struct sk_buff *msg;
cf5ead82
JB		 14254 struct station_info empty_sinfo = {};
14255
14256 if (!sinfo)
14257 sinfo = &empty_sinfo;
ec15e68b 14258
947add36
JB		 14259 trace_cfg80211_del_sta(dev, mac_addr);
14260
58050fce 14261 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 14262 if (!msg)
14263 return;
14264
cf5ead82 14265 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 14266 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 14267 nlmsg_free(msg);
14268 return;
14269 }
14270
68eb5503 14271 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14272 NL80211_MCGRP_MLME, gfp);
ec15e68b 14273}
cf5ead82 14274EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 14275
947add36
JB		 14276void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
14277 enum nl80211_connect_failed_reason reason,
14278 gfp_t gfp)
ed44a951 14279{
947add36 14280 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 14281 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 14282 struct sk_buff *msg;
14283 void *hdr;
14284
14285 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
14286 if (!msg)
14287 return;
14288
14289 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
14290 if (!hdr) {
14291 nlmsg_free(msg);
14292 return;
14293 }
14294
14295 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14296 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
14297 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
14298 goto nla_put_failure;
14299
14300 genlmsg_end(msg, hdr);
14301
68eb5503 14302 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14303 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 14304 return;
14305
14306 nla_put_failure:
14307 genlmsg_cancel(msg, hdr);
14308 nlmsg_free(msg);
14309}
947add36 14310EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 14311
b92ab5d8
JB		 14312static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
14313 const u8 *addr, gfp_t gfp)
28946da7
JB		 14314{
14315 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14316 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 14317 struct sk_buff *msg;
14318 void *hdr;
6aa7de05 14319 u32 nlportid = READ_ONCE(wdev->ap_unexpected_nlportid);
28946da7 14320
15e47304 14321 if (!nlportid)
28946da7
JB		 14322 return false;
14323
14324 msg = nlmsg_new(100, gfp);
14325 if (!msg)
14326 return true;
14327
b92ab5d8 14328 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 14329 if (!hdr) {
14330 nlmsg_free(msg);
14331 return true;
14332 }
14333
9360ffd1
DM		 14334 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14335 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14336 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
14337 goto nla_put_failure;
28946da7 14338
9c90a9f6 14339 genlmsg_end(msg, hdr);
15e47304 14340 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 14341 return true;
14342
14343 nla_put_failure:
14344 genlmsg_cancel(msg, hdr);
14345 nlmsg_free(msg);
14346 return true;
14347}
14348
947add36
JB		 14349bool cfg80211_rx_spurious_frame(struct net_device *dev,
14350 const u8 *addr, gfp_t gfp)
b92ab5d8 14351{
947add36
JB		 14352 struct wireless_dev *wdev = dev->ieee80211_ptr;
14353 bool ret;
14354
14355 trace_cfg80211_rx_spurious_frame(dev, addr);
14356
14357 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
14358 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
14359 trace_cfg80211_return_bool(false);
14360 return false;
14361 }
14362 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
14363 addr, gfp);
14364 trace_cfg80211_return_bool(ret);
14365 return ret;
b92ab5d8 14366}
947add36 14367EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 14368
947add36
JB		 14369bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
14370 const u8 *addr, gfp_t gfp)
b92ab5d8 14371{
947add36
JB		 14372 struct wireless_dev *wdev = dev->ieee80211_ptr;
14373 bool ret;
14374
14375 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
14376
14377 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
14378 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
14379 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
14380 trace_cfg80211_return_bool(false);
14381 return false;
14382 }
14383 ret = __nl80211_unexpected_frame(dev,
14384 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
14385 addr, gfp);
14386 trace_cfg80211_return_bool(ret);
14387 return ret;
b92ab5d8 14388}
947add36 14389EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 14390
2e161f78 14391int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 14392 struct wireless_dev *wdev, u32 nlportid,
804483e9 14393 int freq, int sig_dbm,
19504cf5 14394 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 14395{
71bbc994 14396 struct net_device *netdev = wdev->netdev;
026331c4
JM		 14397 struct sk_buff *msg;
14398 void *hdr;
026331c4 14399
4ef8c1c9 14400 msg = nlmsg_new(100 + len, gfp);
026331c4
JM		 14401 if (!msg)
14402 return -ENOMEM;
14403
2e161f78 14404 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 14405 if (!hdr) {
14406 nlmsg_free(msg);
14407 return -ENOMEM;
14408 }
14409
9360ffd1 14410 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 14411 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14412 netdev->ifindex)) ||
2dad624e
ND		 14413 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14414 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14415 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
14416 (sig_dbm &&
14417 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 14418 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
14419 (flags &&
14420 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 14421 goto nla_put_failure;
026331c4 14422
3b7b72ee 14423 genlmsg_end(msg, hdr);
026331c4 14424
15e47304 14425 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 14426
14427 nla_put_failure:
14428 genlmsg_cancel(msg, hdr);
14429 nlmsg_free(msg);
14430 return -ENOBUFS;
14431}
14432
947add36
JB		 14433void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
14434 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 14435{
947add36 14436 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14437 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 14438 struct net_device *netdev = wdev->netdev;
026331c4
JM		 14439 struct sk_buff *msg;
14440 void *hdr;
14441
947add36
JB		 14442 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
14443
4ef8c1c9 14444 msg = nlmsg_new(100 + len, gfp);
026331c4
JM		 14445 if (!msg)
14446 return;
14447
2e161f78 14448 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 14449 if (!hdr) {
14450 nlmsg_free(msg);
14451 return;
14452 }
14453
9360ffd1 14454 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 14455 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14456 netdev->ifindex)) ||
2dad624e
ND		 14457 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14458 NL80211_ATTR_PAD) ||
9360ffd1 14459 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
2dad624e
ND		 14460 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14461 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14462 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
14463 goto nla_put_failure;
026331c4 14464
3b7b72ee 14465 genlmsg_end(msg, hdr);
026331c4 14466
68eb5503 14467 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14468 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 14469 return;
14470
14471 nla_put_failure:
14472 genlmsg_cancel(msg, hdr);
14473 nlmsg_free(msg);
14474}
947add36 14475EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 14476
5b97f49d
JB		 14477static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
14478 const char *mac, gfp_t gfp)
d6dc1a38 14479{
947add36 14480 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 14481 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14482 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14483 void **cb;
947add36 14484
d6dc1a38 14485 if (!msg)
5b97f49d 14486 return NULL;
d6dc1a38 14487
5b97f49d
JB		 14488 cb = (void **)msg->cb;
14489
14490 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
14491 if (!cb[0]) {
d6dc1a38 14492 nlmsg_free(msg);
5b97f49d 14493 return NULL;
d6dc1a38
JO		 14494 }
14495
9360ffd1 14496 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 14497 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 14498 goto nla_put_failure;
d6dc1a38 14499
5b97f49d 14500 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 14501 goto nla_put_failure;
14502
5b97f49d
JB		 14503 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
14504 if (!cb[1])
9360ffd1 14505 goto nla_put_failure;
d6dc1a38 14506
5b97f49d 14507 cb[2] = rdev;
d6dc1a38 14508
5b97f49d
JB		 14509 return msg;
14510 nla_put_failure:
14511 nlmsg_free(msg);
14512 return NULL;
14513}
14514
14515static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
14516{
14517 void **cb = (void **)msg->cb;
14518 struct cfg80211_registered_device *rdev = cb[2];
14519
14520 nla_nest_end(msg, cb[1]);
14521 genlmsg_end(msg, cb[0]);
14522
14523 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 14524
68eb5503 14525 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14526 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 14527}
14528
14529void cfg80211_cqm_rssi_notify(struct net_device *dev,
14530 enum nl80211_cqm_rssi_threshold_event rssi_event,
bee427b8 14531 s32 rssi_level, gfp_t gfp)
5b97f49d
JB		 14532{
14533 struct sk_buff *msg;
4a4b8169
AZ		 14534 struct wireless_dev *wdev = dev->ieee80211_ptr;
14535 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
5b97f49d 14536
bee427b8 14537 trace_cfg80211_cqm_rssi_notify(dev, rssi_event, rssi_level);
5b97f49d 14538
98f03342
JB		 14539 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
14540 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
14541 return;
14542
4a4b8169
AZ		 14543 if (wdev->cqm_config) {
14544 wdev->cqm_config->last_rssi_event_value = rssi_level;
14545
14546 cfg80211_cqm_rssi_update(rdev, dev);
14547
14548 if (rssi_level == 0)
14549 rssi_level = wdev->cqm_config->last_rssi_event_value;
14550 }
14551
5b97f49d
JB		 14552 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14553 if (!msg)
14554 return;
14555
14556 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
14557 rssi_event))
14558 goto nla_put_failure;
14559
bee427b8
AZ		 14560 if (rssi_level && nla_put_s32(msg, NL80211_ATTR_CQM_RSSI_LEVEL,
14561 rssi_level))
14562 goto nla_put_failure;
14563
5b97f49d
JB		 14564 cfg80211_send_cqm(msg, gfp);
14565
d6dc1a38
JO		 14566 return;
14567
14568 nla_put_failure:
d6dc1a38
JO		 14569 nlmsg_free(msg);
14570}
947add36 14571EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 14572
5b97f49d
JB		 14573void cfg80211_cqm_txe_notify(struct net_device *dev,
14574 const u8 *peer, u32 num_packets,
14575 u32 rate, u32 intvl, gfp_t gfp)
14576{
14577 struct sk_buff *msg;
14578
14579 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14580 if (!msg)
14581 return;
14582
14583 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
14584 goto nla_put_failure;
14585
14586 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
14587 goto nla_put_failure;
14588
14589 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
14590 goto nla_put_failure;
14591
14592 cfg80211_send_cqm(msg, gfp);
14593 return;
14594
14595 nla_put_failure:
14596 nlmsg_free(msg);
14597}
14598EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
14599
14600void cfg80211_cqm_pktloss_notify(struct net_device *dev,
14601 const u8 *peer, u32 num_packets, gfp_t gfp)
14602{
14603 struct sk_buff *msg;
14604
14605 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
14606
14607 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14608 if (!msg)
14609 return;
14610
14611 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
14612 goto nla_put_failure;
14613
14614 cfg80211_send_cqm(msg, gfp);
14615 return;
14616
14617 nla_put_failure:
14618 nlmsg_free(msg);
14619}
14620EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
14621
98f03342
JB		 14622void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
14623{
14624 struct sk_buff *msg;
14625
14626 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14627 if (!msg)
14628 return;
14629
14630 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
14631 goto nla_put_failure;
14632
14633 cfg80211_send_cqm(msg, gfp);
14634 return;
14635
14636 nla_put_failure:
14637 nlmsg_free(msg);
14638}
14639EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
14640
947add36
JB		 14641static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
14642 struct net_device *netdev, const u8 *bssid,
14643 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 14644{
14645 struct sk_buff *msg;
14646 struct nlattr *rekey_attr;
14647 void *hdr;
14648
58050fce 14649 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 14650 if (!msg)
14651 return;
14652
14653 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
14654 if (!hdr) {
14655 nlmsg_free(msg);
14656 return;
14657 }
14658
9360ffd1
DM		 14659 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14660 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14661 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14662 goto nla_put_failure;
e5497d76
JB		 14663
14664 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
14665 if (!rekey_attr)
14666 goto nla_put_failure;
14667
9360ffd1
DM		 14668 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
14669 NL80211_REPLAY_CTR_LEN, replay_ctr))
14670 goto nla_put_failure;
e5497d76
JB		 14671
14672 nla_nest_end(msg, rekey_attr);
14673
3b7b72ee 14674 genlmsg_end(msg, hdr);
e5497d76 14675
68eb5503 14676 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14677 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 14678 return;
14679
14680 nla_put_failure:
14681 genlmsg_cancel(msg, hdr);
14682 nlmsg_free(msg);
14683}
14684
947add36
JB		 14685void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
14686 const u8 *replay_ctr, gfp_t gfp)
14687{
14688 struct wireless_dev *wdev = dev->ieee80211_ptr;
14689 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14690 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14691
14692 trace_cfg80211_gtk_rekey_notify(dev, bssid);
14693 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
14694}
14695EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
14696
14697static void
14698nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
14699 struct net_device *netdev, int index,
14700 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 14701{
14702 struct sk_buff *msg;
14703 struct nlattr *attr;
14704 void *hdr;
14705
58050fce 14706 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 14707 if (!msg)
14708 return;
14709
14710 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
14711 if (!hdr) {
14712 nlmsg_free(msg);
14713 return;
14714 }
14715
9360ffd1
DM		 14716 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14717 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14718 goto nla_put_failure;
c9df56b4
JM		 14719
14720 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
14721 if (!attr)
14722 goto nla_put_failure;
14723
9360ffd1
DM		 14724 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
14725 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
14726 (preauth &&
14727 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
14728 goto nla_put_failure;
c9df56b4
JM		 14729
14730 nla_nest_end(msg, attr);
14731
3b7b72ee 14732 genlmsg_end(msg, hdr);
c9df56b4 14733
68eb5503 14734 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14735 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 14736 return;
14737
14738 nla_put_failure:
14739 genlmsg_cancel(msg, hdr);
14740 nlmsg_free(msg);
14741}
14742
947add36
JB		 14743void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
14744 const u8 *bssid, bool preauth, gfp_t gfp)
14745{
14746 struct wireless_dev *wdev = dev->ieee80211_ptr;
14747 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14748 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14749
14750 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
14751 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
14752}
14753EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
14754
14755static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
14756 struct net_device *netdev,
14757 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 14758 gfp_t gfp,
14759 enum nl80211_commands notif,
14760 u8 count)
5314526b
TP		 14761{
14762 struct sk_buff *msg;
14763 void *hdr;
14764
58050fce 14765 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 14766 if (!msg)
14767 return;
14768
f8d7552e 14769 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 14770 if (!hdr) {
14771 nlmsg_free(msg);
14772 return;
14773 }
14774
683b6d3b
JB		 14775 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14776 goto nla_put_failure;
14777
14778 if (nl80211_send_chandef(msg, chandef))
7eab0f64 14779 goto nla_put_failure;
5314526b 14780
f8d7552e
LC		 14781 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
14782 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
14783 goto nla_put_failure;
14784
5314526b
TP		 14785 genlmsg_end(msg, hdr);
14786
68eb5503 14787 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14788 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 14789 return;
14790
14791 nla_put_failure:
14792 genlmsg_cancel(msg, hdr);
14793 nlmsg_free(msg);
14794}
14795
947add36
JB		 14796void cfg80211_ch_switch_notify(struct net_device *dev,
14797 struct cfg80211_chan_def *chandef)
84f10708 14798{
947add36
JB		 14799 struct wireless_dev *wdev = dev->ieee80211_ptr;
14800 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14801 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 14802
e487eaeb 14803 ASSERT_WDEV_LOCK(wdev);
947add36 14804
e487eaeb 14805 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 14806
9e0e2961 14807 wdev->chandef = *chandef;
96f55f12 14808 wdev->preset_chandef = *chandef;
10b56e14
SM		 14809
14810 if (wdev->iftype == NL80211_IFTYPE_STATION &&
14811 !WARN_ON(!wdev->current_bss))
14812 wdev->current_bss->pub.channel = chandef->chan;
14813
f8d7552e
LC		 14814 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14815 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 14816}
14817EXPORT_SYMBOL(cfg80211_ch_switch_notify);
14818
f8d7552e
LC		 14819void cfg80211_ch_switch_started_notify(struct net_device *dev,
14820 struct cfg80211_chan_def *chandef,
14821 u8 count)
14822{
14823 struct wireless_dev *wdev = dev->ieee80211_ptr;
14824 struct wiphy *wiphy = wdev->wiphy;
14825 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14826
14827 trace_cfg80211_ch_switch_started_notify(dev, chandef);
14828
14829 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14830 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
14831}
14832EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
14833
04f39047
SW		 14834void
14835nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 14836 const struct cfg80211_chan_def *chandef,
04f39047
SW		 14837 enum nl80211_radar_event event,
14838 struct net_device *netdev, gfp_t gfp)
14839{
14840 struct sk_buff *msg;
14841 void *hdr;
14842
14843 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14844 if (!msg)
14845 return;
14846
14847 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
14848 if (!hdr) {
14849 nlmsg_free(msg);
14850 return;
14851 }
14852
14853 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
14854 goto nla_put_failure;
14855
14856 /* NOP and radar events don't need a netdev parameter */
14857 if (netdev) {
14858 struct wireless_dev *wdev = netdev->ieee80211_ptr;
14859
14860 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
2dad624e
ND		 14861 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14862 NL80211_ATTR_PAD))
04f39047
SW		 14863 goto nla_put_failure;
14864 }
14865
14866 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
14867 goto nla_put_failure;
14868
14869 if (nl80211_send_chandef(msg, chandef))
14870 goto nla_put_failure;
14871
9c90a9f6 14872 genlmsg_end(msg, hdr);
04f39047 14873
68eb5503 14874 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14875 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 14876 return;
14877
14878 nla_put_failure:
14879 genlmsg_cancel(msg, hdr);
14880 nlmsg_free(msg);
14881}
14882
7f6cf311
JB		 14883void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
14884 u64 cookie, bool acked, gfp_t gfp)
14885{
14886 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14887 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 14888 struct sk_buff *msg;
14889 void *hdr;
7f6cf311 14890
4ee3e063
BL		 14891 trace_cfg80211_probe_status(dev, addr, cookie, acked);
14892
58050fce 14893 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 14894
7f6cf311
JB		 14895 if (!msg)
14896 return;
14897
14898 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
14899 if (!hdr) {
14900 nlmsg_free(msg);
14901 return;
14902 }
14903
9360ffd1
DM		 14904 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14905 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14906 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2dad624e
ND		 14907 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14908 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14909 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
14910 goto nla_put_failure;
7f6cf311 14911
9c90a9f6 14912 genlmsg_end(msg, hdr);
7f6cf311 14913
68eb5503 14914 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14915 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 14916 return;
14917
14918 nla_put_failure:
14919 genlmsg_cancel(msg, hdr);
14920 nlmsg_free(msg);
14921}
14922EXPORT_SYMBOL(cfg80211_probe_status);
14923
5e760230
JB		 14924void cfg80211_report_obss_beacon(struct wiphy *wiphy,
14925 const u8 *frame, size_t len,
37c73b5f 14926 int freq, int sig_dbm)
5e760230 14927{
f26cbf40 14928 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 14929 struct sk_buff *msg;
14930 void *hdr;
37c73b5f 14931 struct cfg80211_beacon_registration *reg;
5e760230 14932
4ee3e063
BL		 14933 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
14934
37c73b5f
BG		 14935 spin_lock_bh(&rdev->beacon_registrations_lock);
14936 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
14937 msg = nlmsg_new(len + 100, GFP_ATOMIC);
14938 if (!msg) {
14939 spin_unlock_bh(&rdev->beacon_registrations_lock);
14940 return;
14941 }
5e760230 14942
37c73b5f
BG		 14943 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
14944 if (!hdr)
14945 goto nla_put_failure;
5e760230 14946
37c73b5f
BG		 14947 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14948 (freq &&
14949 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
14950 (sig_dbm &&
14951 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
14952 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
14953 goto nla_put_failure;
5e760230 14954
37c73b5f 14955 genlmsg_end(msg, hdr);
5e760230 14956
37c73b5f
BG		 14957 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
14958 }
14959 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 14960 return;
14961
14962 nla_put_failure:
37c73b5f
BG		 14963 spin_unlock_bh(&rdev->beacon_registrations_lock);
14964 if (hdr)
14965 genlmsg_cancel(msg, hdr);
5e760230
JB		 14966 nlmsg_free(msg);
14967}
14968EXPORT_SYMBOL(cfg80211_report_obss_beacon);
14969
cd8f7cb4 14970#ifdef CONFIG_PM
8cd4d456
LC		 14971static int cfg80211_net_detect_results(struct sk_buff *msg,
14972 struct cfg80211_wowlan_wakeup *wakeup)
14973{
14974 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
14975 struct nlattr *nl_results, *nl_match, *nl_freqs;
14976 int i, j;
14977
14978 nl_results = nla_nest_start(
14979 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
14980 if (!nl_results)
14981 return -EMSGSIZE;
14982
14983 for (i = 0; i < nd->n_matches; i++) {
14984 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
14985
14986 nl_match = nla_nest_start(msg, i);
14987 if (!nl_match)
14988 break;
14989
14990 /* The SSID attribute is optional in nl80211, but for
14991 * simplicity reasons it's always present in the
14992 * cfg80211 structure. If a driver can't pass the
14993 * SSID, that needs to be changed. A zero length SSID
14994 * is still a valid SSID (wildcard), so it cannot be
14995 * used for this purpose.
14996 */
14997 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
14998 match->ssid.ssid)) {
14999 nla_nest_cancel(msg, nl_match);
15000 goto out;
15001 }
15002
15003 if (match->n_channels) {
15004 nl_freqs = nla_nest_start(
15005 msg, NL80211_ATTR_SCAN_FREQUENCIES);
15006 if (!nl_freqs) {
15007 nla_nest_cancel(msg, nl_match);
15008 goto out;
15009 }
15010
15011 for (j = 0; j < match->n_channels; j++) {
5528fae8 15012 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 15013 nla_nest_cancel(msg, nl_freqs);
15014 nla_nest_cancel(msg, nl_match);
15015 goto out;
15016 }
15017 }
15018
15019 nla_nest_end(msg, nl_freqs);
15020 }
15021
15022 nla_nest_end(msg, nl_match);
15023 }
15024
15025out:
15026 nla_nest_end(msg, nl_results);
15027 return 0;
15028}
15029
cd8f7cb4
JB		 15030void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
15031 struct cfg80211_wowlan_wakeup *wakeup,
15032 gfp_t gfp)
15033{
f26cbf40 15034 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 15035 struct sk_buff *msg;
15036 void *hdr;
9c90a9f6 15037 int size = 200;
cd8f7cb4
JB		 15038
15039 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
15040
15041 if (wakeup)
15042 size += wakeup->packet_present_len;
15043
15044 msg = nlmsg_new(size, gfp);
15045 if (!msg)
15046 return;
15047
15048 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
15049 if (!hdr)
15050 goto free_msg;
15051
15052 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 15053 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15054 NL80211_ATTR_PAD))
cd8f7cb4
JB		 15055 goto free_msg;
15056
15057 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
15058 wdev->netdev->ifindex))
15059 goto free_msg;
15060
15061 if (wakeup) {
15062 struct nlattr *reasons;
15063
15064 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 15065 if (!reasons)
15066 goto free_msg;
cd8f7cb4
JB		 15067
15068 if (wakeup->disconnect &&
15069 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
15070 goto free_msg;
15071 if (wakeup->magic_pkt &&
15072 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
15073 goto free_msg;
15074 if (wakeup->gtk_rekey_failure &&
15075 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
15076 goto free_msg;
15077 if (wakeup->eap_identity_req &&
15078 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
15079 goto free_msg;
15080 if (wakeup->four_way_handshake &&
15081 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
15082 goto free_msg;
15083 if (wakeup->rfkill_release &&
15084 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
15085 goto free_msg;
15086
15087 if (wakeup->pattern_idx >= 0 &&
15088 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
15089 wakeup->pattern_idx))
15090 goto free_msg;
15091
ae917c9f
JB		 15092 if (wakeup->tcp_match &&
15093 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
15094 goto free_msg;
2a0e047e 15095
ae917c9f
JB		 15096 if (wakeup->tcp_connlost &&
15097 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
15098 goto free_msg;
2a0e047e 15099
ae917c9f
JB		 15100 if (wakeup->tcp_nomoretokens &&
15101 nla_put_flag(msg,
15102 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
15103 goto free_msg;
2a0e047e 15104
cd8f7cb4
JB		 15105 if (wakeup->packet) {
15106 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
15107 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
15108
15109 if (!wakeup->packet_80211) {
15110 pkt_attr =
15111 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
15112 len_attr =
15113 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
15114 }
15115
15116 if (wakeup->packet_len &&
15117 nla_put_u32(msg, len_attr, wakeup->packet_len))
15118 goto free_msg;
15119
15120 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
15121 wakeup->packet))
15122 goto free_msg;
15123 }
15124
8cd4d456
LC		 15125 if (wakeup->net_detect &&
15126 cfg80211_net_detect_results(msg, wakeup))
15127 goto free_msg;
15128
cd8f7cb4
JB		 15129 nla_nest_end(msg, reasons);
15130 }
15131
9c90a9f6 15132 genlmsg_end(msg, hdr);
cd8f7cb4 15133
68eb5503 15134 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 15135 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 15136 return;
15137
15138 free_msg:
15139 nlmsg_free(msg);
15140}
15141EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
15142#endif
15143
3475b094
JM		 15144void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
15145 enum nl80211_tdls_operation oper,
15146 u16 reason_code, gfp_t gfp)
15147{
15148 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 15149 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 15150 struct sk_buff *msg;
15151 void *hdr;
3475b094
JM		 15152
15153 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
15154 reason_code);
15155
15156 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15157 if (!msg)
15158 return;
15159
15160 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
15161 if (!hdr) {
15162 nlmsg_free(msg);
15163 return;
15164 }
15165
15166 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15167 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
15168 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
15169 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
15170 (reason_code > 0 &&
15171 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
15172 goto nla_put_failure;
15173
9c90a9f6 15174 genlmsg_end(msg, hdr);
3475b094 15175
68eb5503 15176 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 15177 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 15178 return;
15179
15180 nla_put_failure:
15181 genlmsg_cancel(msg, hdr);
15182 nlmsg_free(msg);
15183}
15184EXPORT_SYMBOL(cfg80211_tdls_oper_request);
15185
026331c4
JM		 15186static int nl80211_netlink_notify(struct notifier_block * nb,
15187 unsigned long state,
15188 void *_notify)
15189{
15190 struct netlink_notify *notify = _notify;
15191 struct cfg80211_registered_device *rdev;
15192 struct wireless_dev *wdev;
37c73b5f 15193 struct cfg80211_beacon_registration *reg, *tmp;
026331c4 15194
8f815cdd 15195 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
026331c4
JM		 15196 return NOTIFY_DONE;
15197
15198 rcu_read_lock();
15199
5e760230 15200 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
ca986ad9 15201 struct cfg80211_sched_scan_request *sched_scan_req;
753aacfd 15202
ca986ad9
AVS		 15203 list_for_each_entry_rcu(sched_scan_req,
15204 &rdev->sched_scan_req_list,
15205 list) {
15206 if (sched_scan_req->owner_nlportid == notify->portid) {
15207 sched_scan_req->nl_owner_dead = true;
753aacfd 15208 schedule_work(&rdev->sched_scan_stop_wk);
ca986ad9 15209 }
753aacfd 15210 }
78f22b6a 15211
53873f13 15212 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15e47304 15213 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 15214
ab81007a
JB		 15215 if (wdev->owner_nlportid == notify->portid) {
15216 wdev->nl_owner_dead = true;
15217 schedule_work(&rdev->destroy_work);
15218 } else if (wdev->conn_owner_nlportid == notify->portid) {
bd2522b1 15219 schedule_work(&wdev->disconnect_wk);
ab81007a 15220 }
78f22b6a
JB		 15221 }
15222
37c73b5f
BG		 15223 spin_lock_bh(&rdev->beacon_registrations_lock);
15224 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
15225 list) {
15226 if (reg->nlportid == notify->portid) {
15227 list_del(&reg->list);
15228 kfree(reg);
15229 break;
15230 }
15231 }
15232 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 15233 }
026331c4
JM		 15234
15235 rcu_read_unlock();
15236
05050753
I		 15237 /*
15238 * It is possible that the user space process that is controlling the
15239 * indoor setting disappeared, so notify the regulatory core.
15240 */
15241 regulatory_netlink_notify(notify->portid);
6784c7db 15242 return NOTIFY_OK;
026331c4
JM		 15243}
15244
15245static struct notifier_block nl80211_netlink_notifier = {
15246 .notifier_call = nl80211_netlink_notify,
15247};
15248
355199e0
JM		 15249void cfg80211_ft_event(struct net_device *netdev,
15250 struct cfg80211_ft_event_params *ft_event)
15251{
15252 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 15253 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 15254 struct sk_buff *msg;
15255 void *hdr;
355199e0
JM		 15256
15257 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
15258
15259 if (!ft_event->target_ap)
15260 return;
15261
4ef8c1c9 15262 msg = nlmsg_new(100 + ft_event->ric_ies_len, GFP_KERNEL);
355199e0
JM		 15263 if (!msg)
15264 return;
15265
15266 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 15267 if (!hdr)
15268 goto out;
355199e0 15269
ae917c9f
JB		 15270 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15271 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
15272 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
15273 goto out;
355199e0 15274
ae917c9f
JB		 15275 if (ft_event->ies &&
15276 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
15277 goto out;
15278 if (ft_event->ric_ies &&
15279 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
15280 ft_event->ric_ies))
15281 goto out;
355199e0 15282
9c90a9f6 15283 genlmsg_end(msg, hdr);
355199e0 15284
68eb5503 15285 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 15286 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 15287 return;
15288 out:
15289 nlmsg_free(msg);
355199e0
JM		 15290}
15291EXPORT_SYMBOL(cfg80211_ft_event);
15292
5de17984
AS		 15293void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
15294{
15295 struct cfg80211_registered_device *rdev;
15296 struct sk_buff *msg;
15297 void *hdr;
15298 u32 nlportid;
15299
f26cbf40 15300 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 15301 if (!rdev->crit_proto_nlportid)
15302 return;
15303
15304 nlportid = rdev->crit_proto_nlportid;
15305 rdev->crit_proto_nlportid = 0;
15306
15307 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15308 if (!msg)
15309 return;
15310
15311 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
15312 if (!hdr)
15313 goto nla_put_failure;
15314
15315 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 15316 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15317 NL80211_ATTR_PAD))
5de17984
AS		 15318 goto nla_put_failure;
15319
15320 genlmsg_end(msg, hdr);
15321
15322 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
15323 return;
15324
15325 nla_put_failure:
15326 if (hdr)
15327 genlmsg_cancel(msg, hdr);
15328 nlmsg_free(msg);
5de17984
AS		 15329}
15330EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
15331
348baf0e
JB		 15332void nl80211_send_ap_stopped(struct wireless_dev *wdev)
15333{
15334 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 15335 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 15336 struct sk_buff *msg;
15337 void *hdr;
15338
15339 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
15340 if (!msg)
15341 return;
15342
15343 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
15344 if (!hdr)
15345 goto out;
15346
15347 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15348 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
2dad624e
ND		 15349 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15350 NL80211_ATTR_PAD))
348baf0e
JB		 15351 goto out;
15352
15353 genlmsg_end(msg, hdr);
15354
15355 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
15356 NL80211_MCGRP_MLME, GFP_KERNEL);
15357 return;
15358 out:
15359 nlmsg_free(msg);
15360}
15361
55682965
JB		 15362/* initialisation/exit functions */
15363
56989f6d 15364int __init nl80211_init(void)
55682965 15365{
0d63cbb5 15366 int err;
55682965 15367
489111e5 15368 err = genl_register_family(&nl80211_fam);
55682965
JB		 15369 if (err)
15370 return err;
15371
026331c4
JM		 15372 err = netlink_register_notifier(&nl80211_netlink_notifier);
15373 if (err)
15374 goto err_out;
15375
55682965
JB		 15376 return 0;
15377 err_out:
15378 genl_unregister_family(&nl80211_fam);
15379 return err;
15380}
15381
15382void nl80211_exit(void)
15383{
026331c4 15384 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 15385 genl_unregister_family(&nl80211_fam);
15386}
ubuntu-bionic-kernel mirror