]> 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
cfg80211: remove unused function ieee80211_data_from_8023()
[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>
2a519311 19#include <linux/etherdevice.h>
463d0183 20#include <net/net_namespace.h>
55682965
JB		 21#include <net/genetlink.h>
22#include <net/cfg80211.h>
463d0183 23#include <net/sock.h>
2a0e047e 24#include <net/inet_connection_sock.h>
55682965
JB		 25#include "core.h"
26#include "nl80211.h"
b2e1b302 27#include "reg.h"
e35e4d28 28#include "rdev-ops.h"
55682965 29
5fb628e9
JM		 30static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
31 struct genl_info *info,
32 struct cfg80211_crypto_settings *settings,
33 int cipher_limit);
34
55682965 35/* the netlink family */
489111e5 36static struct genl_family nl80211_fam;
55682965 37
2a94fe48
JB		 38/* multicast groups */
39enum nl80211_multicast_groups {
40 NL80211_MCGRP_CONFIG,
41 NL80211_MCGRP_SCAN,
42 NL80211_MCGRP_REGULATORY,
43 NL80211_MCGRP_MLME,
567ffc35 44 NL80211_MCGRP_VENDOR,
50bcd31d 45 NL80211_MCGRP_NAN,
2a94fe48
JB		 46 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
47};
48
49static const struct genl_multicast_group nl80211_mcgrps[] = {
71b836ec
JB		 50 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
51 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
52 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
53 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
54 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
50bcd31d 55 [NL80211_MCGRP_NAN] = { .name = NL80211_MULTICAST_GROUP_NAN },
2a94fe48 56#ifdef CONFIG_NL80211_TESTMODE
71b836ec 57 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
2a94fe48
JB		 58#endif
59};
60
89a54e48
JB		 61/* returns ERR_PTR values */
62static struct wireless_dev *
63__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 64{
89a54e48
JB		 65 struct cfg80211_registered_device *rdev;
66 struct wireless_dev *result = NULL;
67 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
68 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
69 u64 wdev_id;
70 int wiphy_idx = -1;
71 int ifidx = -1;
55682965 72
5fe231e8 73 ASSERT_RTNL();
55682965 74
89a54e48
JB		 75 if (!have_ifidx && !have_wdev_id)
76 return ERR_PTR(-EINVAL);
55682965 77
89a54e48
JB		 78 if (have_ifidx)
79 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
80 if (have_wdev_id) {
81 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
82 wiphy_idx = wdev_id >> 32;
55682965
JB		 83 }
84
89a54e48
JB		 85 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
86 struct wireless_dev *wdev;
87
88 if (wiphy_net(&rdev->wiphy) != netns)
89 continue;
90
91 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
92 continue;
93
53873f13 94 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
89a54e48
JB		 95 if (have_ifidx && wdev->netdev &&
96 wdev->netdev->ifindex == ifidx) {
97 result = wdev;
98 break;
99 }
100 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
101 result = wdev;
102 break;
103 }
104 }
89a54e48
JB		 105
106 if (result)
107 break;
108 }
109
110 if (result)
111 return result;
112 return ERR_PTR(-ENODEV);
55682965
JB		 113}
114
a9455408 115static struct cfg80211_registered_device *
878d9ec7 116__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 117{
7fee4778
JB		 118 struct cfg80211_registered_device *rdev = NULL, *tmp;
119 struct net_device *netdev;
a9455408 120
5fe231e8 121 ASSERT_RTNL();
a9455408 122
878d9ec7 123 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 124 !attrs[NL80211_ATTR_IFINDEX] &&
125 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 126 return ERR_PTR(-EINVAL);
127
878d9ec7 128 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 129 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 130 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 131
89a54e48
JB		 132 if (attrs[NL80211_ATTR_WDEV]) {
133 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
134 struct wireless_dev *wdev;
135 bool found = false;
136
137 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
138 if (tmp) {
139 /* make sure wdev exists */
53873f13 140 list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
89a54e48
JB		 141 if (wdev->identifier != (u32)wdev_id)
142 continue;
143 found = true;
144 break;
145 }
89a54e48
JB		 146
147 if (!found)
148 tmp = NULL;
149
150 if (rdev && tmp != rdev)
151 return ERR_PTR(-EINVAL);
152 rdev = tmp;
153 }
154 }
155
878d9ec7
JB		 156 if (attrs[NL80211_ATTR_IFINDEX]) {
157 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7a087e74 158
7f2b8562 159 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 160 if (netdev) {
161 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 162 tmp = wiphy_to_rdev(
163 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 164 else
165 tmp = NULL;
166
7fee4778
JB		 167 /* not wireless device -- return error */
168 if (!tmp)
169 return ERR_PTR(-EINVAL);
170
171 /* mismatch -- return error */
172 if (rdev && tmp != rdev)
173 return ERR_PTR(-EINVAL);
174
175 rdev = tmp;
a9455408 176 }
a9455408 177 }
a9455408 178
4f7eff10
JB		 179 if (!rdev)
180 return ERR_PTR(-ENODEV);
a9455408 181
4f7eff10
JB		 182 if (netns != wiphy_net(&rdev->wiphy))
183 return ERR_PTR(-ENODEV);
184
185 return rdev;
a9455408
JB		 186}
187
188/*
189 * This function returns a pointer to the driver
190 * that the genl_info item that is passed refers to.
a9455408
JB		 191 *
192 * The result of this can be a PTR_ERR and hence must
193 * be checked with IS_ERR() for errors.
194 */
195static struct cfg80211_registered_device *
4f7eff10 196cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 197{
5fe231e8 198 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 199}
200
55682965 201/* policy for the attributes */
8cd4d456 202static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 203 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
204 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 205 .len = 20-1 },
31888487 206 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 207
72bdcf34 208 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 209 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 210 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
211 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
212 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
213
b9a5f8ca
JM		 214 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
215 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
216 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
217 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 218 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 219 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 220
221 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
222 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
223 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 224
e007b857
EP		 225 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
226 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 227
b9454e83 228 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 229 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
230 .len = WLAN_MAX_KEY_LEN },
231 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
232 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
233 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 234 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 235 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 236
237 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
238 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
239 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
240 .len = IEEE80211_MAX_DATA_LEN },
241 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
242 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 243 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
244 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
245 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
246 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
247 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 248 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 249 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 250 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 251 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 252 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 253 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 254
b2e1b302
LR		 255 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
256 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
257
9f1ba906
JM		 258 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
259 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
260 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 261 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
262 .len = NL80211_MAX_SUPP_RATES },
50b12f59 263 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 264
24bdd9f4 265 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 266 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 267
6c739419 268 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 269
270 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
271 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
272 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 273 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
274 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 275
276 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
277 .len = IEEE80211_MAX_SSID_LEN },
278 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
279 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 280 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 281 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 282 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 283 [NL80211_ATTR_STA_FLAGS2] = {
284 .len = sizeof(struct nl80211_sta_flag_update),
285 },
3f77316c 286 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 287 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
288 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 289 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
290 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
291 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 292 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 293 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
9361df14 294 [NL80211_ATTR_PMKID] = { .len = WLAN_PMKID_LEN },
9588bbd5
JM		 295 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
296 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 297 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 298 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
299 .len = IEEE80211_MAX_DATA_LEN },
300 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 301 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 302 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 303 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 304 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 305 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
306 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 307 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 308 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
309 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 310 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 311 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 312 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 313 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 314 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 315 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 316 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 317 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 318 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 319 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
320 .len = IEEE80211_MAX_DATA_LEN },
321 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
322 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 323 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 324 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 325 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 326 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
327 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
328 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
329 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
330 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 331 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 332 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 333 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
334 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 335 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 336 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
337 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
338 .len = NL80211_HT_CAPABILITY_LEN
339 },
1d9d9213 340 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 341 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 342 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 343 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 344 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
11b6b5a4 345 [NL80211_ATTR_AUTH_DATA] = { .type = NLA_BINARY, },
f461be3e 346 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 347 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 348 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
349 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
8feb69c7 350 [NL80211_ATTR_LOCAL_MESH_POWER_MODE] = {. type = NLA_U32 },
77765eaf
VT		 351 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
352 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 353 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
354 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 355 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 356 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
357 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
358 .len = NL80211_VHT_CAPABILITY_LEN,
359 },
355199e0
JM		 360 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
361 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
362 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 363 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 364 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
365 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
366 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 367 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
368 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 369 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
370 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 371 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 372 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 373 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
374 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
375 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 376 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
377 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 378 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
379 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 380 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
18e5ca65 381 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 382 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 383 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 384 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
385 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
386 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 387 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 388 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 389 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
4b681c82 390 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
9c748934 391 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
05050753 392 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
34d50519 393 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
38de03d2 394 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
17b94247 395 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
c6e6a0c8
AE		 396 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
397 .len = VHT_MUMIMO_GROUPS_DATA_LEN
398 },
399 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
cb3b7d87 400 [NL80211_ATTR_NAN_MASTER_PREF] = { .type = NLA_U8 },
8585989d 401 [NL80211_ATTR_BANDS] = { .type = NLA_U32 },
a442b761 402 [NL80211_ATTR_NAN_FUNC] = { .type = NLA_NESTED },
348bd456
JM		 403 [NL80211_ATTR_FILS_KEK] = { .type = NLA_BINARY,
404 .len = FILS_MAX_KEK_LEN },
405 [NL80211_ATTR_FILS_NONCES] = { .len = 2 * FILS_NONCE_LEN },
ce0ce13a 406 [NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED] = { .type = NLA_FLAG, },
2fa436b3 407 [NL80211_ATTR_BSSID] = { .len = ETH_ALEN },
bf95ecdb 408 [NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] = { .type = NLA_S8 },
409 [NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST] = {
410 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
411 },
3093ebbe 412 [NL80211_ATTR_TIMEOUT_REASON] = { .type = NLA_U32 },
a3caf744
VK		 413 [NL80211_ATTR_FILS_ERP_USERNAME] = { .type = NLA_BINARY,
414 .len = FILS_ERP_MAX_USERNAME_LEN },
415 [NL80211_ATTR_FILS_ERP_REALM] = { .type = NLA_BINARY,
416 .len = FILS_ERP_MAX_REALM_LEN },
417 [NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] = { .type = NLA_U16 },
418 [NL80211_ATTR_FILS_ERP_RRK] = { .type = NLA_BINARY,
419 .len = FILS_ERP_MAX_RRK_LEN },
420 [NL80211_ATTR_FILS_CACHE_ID] = { .len = 2 },
421 [NL80211_ATTR_PMK] = { .type = NLA_BINARY, .len = PMK_MAX_LEN },
ca986ad9 422 [NL80211_ATTR_SCHED_SCAN_MULTI] = { .type = NLA_FLAG },
55682965
JB		 423};
424
e31b8213 425/* policy for the key attributes */
b54452b0 426static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 427 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 428 [NL80211_KEY_IDX] = { .type = NLA_U8 },
429 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 430 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 431 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
432 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 433 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 434 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
435};
436
437/* policy for the key default flags */
438static const struct nla_policy
439nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
440 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
441 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 442};
443
f83ace3b 444#ifdef CONFIG_PM
ff1b6e69
JB		 445/* policy for WoWLAN attributes */
446static const struct nla_policy
447nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
448 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
449 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
450 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
451 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 452 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
453 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
454 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
455 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 456 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 457 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 458};
459
460static const struct nla_policy
461nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
462 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
463 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
464 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
465 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
466 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
467 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
468 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
469 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
470 },
471 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
472 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
473 },
474 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
475 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
476 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69 477};
f83ace3b 478#endif /* CONFIG_PM */
ff1b6e69 479
be29b99a
AK		 480/* policy for coalesce rule attributes */
481static const struct nla_policy
482nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
483 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
484 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
485 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
486};
487
e5497d76
JB		 488/* policy for GTK rekey offload attributes */
489static const struct nla_policy
490nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
491 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
492 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
493 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
494};
495
a1f1c21c
LC		 496static const struct nla_policy
497nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 498 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 499 .len = IEEE80211_MAX_SSID_LEN },
3007e352 500 [NL80211_SCHED_SCAN_MATCH_ATTR_BSSID] = { .len = ETH_ALEN },
88e920b4 501 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 502};
503
3b06d277
AS		 504static const struct nla_policy
505nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
506 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
507 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
508};
509
38de03d2
AS		 510static const struct nla_policy
511nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
512 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
513 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
514 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
515 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
516 },
517};
518
a442b761
AB		 519/* policy for NAN function attributes */
520static const struct nla_policy
521nl80211_nan_func_policy[NL80211_NAN_FUNC_ATTR_MAX + 1] = {
522 [NL80211_NAN_FUNC_TYPE] = { .type = NLA_U8 },
0a27844c 523 [NL80211_NAN_FUNC_SERVICE_ID] = {
a442b761
AB		 524 .len = NL80211_NAN_FUNC_SERVICE_ID_LEN },
525 [NL80211_NAN_FUNC_PUBLISH_TYPE] = { .type = NLA_U8 },
526 [NL80211_NAN_FUNC_PUBLISH_BCAST] = { .type = NLA_FLAG },
527 [NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE] = { .type = NLA_FLAG },
528 [NL80211_NAN_FUNC_FOLLOW_UP_ID] = { .type = NLA_U8 },
529 [NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] = { .type = NLA_U8 },
530 [NL80211_NAN_FUNC_FOLLOW_UP_DEST] = { .len = ETH_ALEN },
531 [NL80211_NAN_FUNC_CLOSE_RANGE] = { .type = NLA_FLAG },
532 [NL80211_NAN_FUNC_TTL] = { .type = NLA_U32 },
533 [NL80211_NAN_FUNC_SERVICE_INFO] = { .type = NLA_BINARY,
534 .len = NL80211_NAN_FUNC_SERVICE_SPEC_INFO_MAX_LEN },
535 [NL80211_NAN_FUNC_SRF] = { .type = NLA_NESTED },
536 [NL80211_NAN_FUNC_RX_MATCH_FILTER] = { .type = NLA_NESTED },
537 [NL80211_NAN_FUNC_TX_MATCH_FILTER] = { .type = NLA_NESTED },
538 [NL80211_NAN_FUNC_INSTANCE_ID] = { .type = NLA_U8 },
539 [NL80211_NAN_FUNC_TERM_REASON] = { .type = NLA_U8 },
540};
541
542/* policy for Service Response Filter attributes */
543static const struct nla_policy
544nl80211_nan_srf_policy[NL80211_NAN_SRF_ATTR_MAX + 1] = {
545 [NL80211_NAN_SRF_INCLUDE] = { .type = NLA_FLAG },
546 [NL80211_NAN_SRF_BF] = { .type = NLA_BINARY,
547 .len = NL80211_NAN_FUNC_SRF_MAX_LEN },
548 [NL80211_NAN_SRF_BF_IDX] = { .type = NLA_U8 },
549 [NL80211_NAN_SRF_MAC_ADDRS] = { .type = NLA_NESTED },
550};
551
97990a06
JB		 552static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
553 struct netlink_callback *cb,
554 struct cfg80211_registered_device **rdev,
555 struct wireless_dev **wdev)
a043897a 556{
97990a06 557 int err;
a043897a 558
97990a06
JB		 559 if (!cb->args[0]) {
560 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
c90c39da 561 genl_family_attrbuf(&nl80211_fam),
fceb6435 562 nl80211_fam.maxattr, nl80211_policy, NULL);
97990a06 563 if (err)
ea90e0dc 564 return err;
67748893 565
c90c39da
JB		 566 *wdev = __cfg80211_wdev_from_attrs(
567 sock_net(skb->sk),
568 genl_family_attrbuf(&nl80211_fam));
ea90e0dc
JB		 569 if (IS_ERR(*wdev))
570 return PTR_ERR(*wdev);
f26cbf40 571 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 572 /* 0 is the first index - add 1 to parse only once */
573 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 574 cb->args[1] = (*wdev)->identifier;
575 } else {
c319d50b
JB		 576 /* subtract the 1 again here */
577 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 578 struct wireless_dev *tmp;
67748893 579
ea90e0dc
JB		 580 if (!wiphy)
581 return -ENODEV;
f26cbf40 582 *rdev = wiphy_to_rdev(wiphy);
97990a06 583 *wdev = NULL;
67748893 584
53873f13 585 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
97990a06
JB		 586 if (tmp->identifier == cb->args[1]) {
587 *wdev = tmp;
588 break;
589 }
590 }
67748893 591
ea90e0dc
JB		 592 if (!*wdev)
593 return -ENODEV;
67748893
JB		 594 }
595
67748893 596 return 0;
67748893
JB		 597}
598
f4a11bb0
JB		 599/* IE validation */
600static bool is_valid_ie_attr(const struct nlattr *attr)
601{
602 const u8 *pos;
603 int len;
604
605 if (!attr)
606 return true;
607
608 pos = nla_data(attr);
609 len = nla_len(attr);
610
611 while (len) {
612 u8 elemlen;
613
614 if (len < 2)
615 return false;
616 len -= 2;
617
618 elemlen = pos[1];
619 if (elemlen > len)
620 return false;
621
622 len -= elemlen;
623 pos += 2 + elemlen;
624 }
625
626 return true;
627}
628
55682965 629/* message building helper */
15e47304 630static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 631 int flags, u8 cmd)
632{
633 /* since there is no private header just add the generic one */
15e47304 634 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 635}
636
5dab3b8a 637static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 638 struct ieee80211_channel *chan,
639 bool large)
5dab3b8a 640{
ea077c1c
RL		 641 /* Some channels must be completely excluded from the
642 * list to protect old user-space tools from breaking
643 */
644 if (!large && chan->flags &
645 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
646 return 0;
647
9360ffd1
DM		 648 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
649 chan->center_freq))
650 goto nla_put_failure;
5dab3b8a 651
9360ffd1
DM		 652 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
653 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
654 goto nla_put_failure;
8fe02e16
LR		 655 if (chan->flags & IEEE80211_CHAN_NO_IR) {
656 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
657 goto nla_put_failure;
658 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
659 goto nla_put_failure;
660 }
cdc89b97
JB		 661 if (chan->flags & IEEE80211_CHAN_RADAR) {
662 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
663 goto nla_put_failure;
664 if (large) {
665 u32 time;
666
667 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
668
669 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
670 chan->dfs_state))
671 goto nla_put_failure;
672 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
673 time))
674 goto nla_put_failure;
089027e5
JD		 675 if (nla_put_u32(msg,
676 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
677 chan->dfs_cac_ms))
678 goto nla_put_failure;
cdc89b97
JB		 679 }
680 }
5dab3b8a 681
fe1abafd
JB		 682 if (large) {
683 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
684 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
685 goto nla_put_failure;
686 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
687 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
688 goto nla_put_failure;
689 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
690 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
691 goto nla_put_failure;
692 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
693 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
694 goto nla_put_failure;
570dbde1
DS		 695 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
696 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
697 goto nla_put_failure;
06f207fc
AN		 698 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
699 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 700 goto nla_put_failure;
ea077c1c
RL		 701 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
702 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
703 goto nla_put_failure;
704 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
705 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
706 goto nla_put_failure;
fe1abafd
JB		 707 }
708
9360ffd1
DM		 709 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
710 DBM_TO_MBM(chan->max_power)))
711 goto nla_put_failure;
5dab3b8a
LR		 712
713 return 0;
714
715 nla_put_failure:
716 return -ENOBUFS;
717}
718
55682965
JB		 719/* netlink command implementations */
720
b9454e83
JB		 721struct key_parse {
722 struct key_params p;
723 int idx;
e31b8213 724 int type;
b9454e83 725 bool def, defmgmt;
dbd2fd65 726 bool def_uni, def_multi;
b9454e83
JB		 727};
728
729static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
730{
731 struct nlattr *tb[NL80211_KEY_MAX + 1];
732 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
fceb6435 733 nl80211_key_policy, NULL);
b9454e83
JB		 734 if (err)
735 return err;
736
737 k->def = !!tb[NL80211_KEY_DEFAULT];
738 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
739
dbd2fd65
JB		 740 if (k->def) {
741 k->def_uni = true;
742 k->def_multi = true;
743 }
744 if (k->defmgmt)
745 k->def_multi = true;
746
b9454e83
JB		 747 if (tb[NL80211_KEY_IDX])
748 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
749
750 if (tb[NL80211_KEY_DATA]) {
751 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
752 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
753 }
754
755 if (tb[NL80211_KEY_SEQ]) {
756 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
757 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
758 }
759
760 if (tb[NL80211_KEY_CIPHER])
761 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
762
e31b8213
JB		 763 if (tb[NL80211_KEY_TYPE]) {
764 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
765 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
766 return -EINVAL;
767 }
768
dbd2fd65
JB		 769 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
770 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
7a087e74 771
2da8f419
JB		 772 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
773 tb[NL80211_KEY_DEFAULT_TYPES],
fceb6435 774 nl80211_key_default_policy, NULL);
dbd2fd65
JB		 775 if (err)
776 return err;
777
778 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
779 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
780 }
781
b9454e83
JB		 782 return 0;
783}
784
785static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
786{
787 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
788 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
789 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
790 }
791
792 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
793 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
794 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
795 }
796
797 if (info->attrs[NL80211_ATTR_KEY_IDX])
798 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
799
800 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
801 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
802
803 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
804 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
805
dbd2fd65
JB		 806 if (k->def) {
807 k->def_uni = true;
808 k->def_multi = true;
809 }
810 if (k->defmgmt)
811 k->def_multi = true;
812
e31b8213
JB		 813 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
814 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
815 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
816 return -EINVAL;
817 }
818
dbd2fd65
JB		 819 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
820 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
fceb6435
JB		 821 int err = nla_parse_nested(kdt,
822 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
823 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
fe52145f
JB		 824 nl80211_key_default_policy,
825 info->extack);
dbd2fd65
JB		 826 if (err)
827 return err;
828
829 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
830 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
831 }
832
b9454e83
JB		 833 return 0;
834}
835
836static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
837{
838 int err;
839
840 memset(k, 0, sizeof(*k));
841 k->idx = -1;
e31b8213 842 k->type = -1;
b9454e83
JB		 843
844 if (info->attrs[NL80211_ATTR_KEY])
845 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
846 else
847 err = nl80211_parse_key_old(info, k);
848
849 if (err)
850 return err;
851
852 if (k->def && k->defmgmt)
853 return -EINVAL;
854
dbd2fd65
JB		 855 if (k->defmgmt) {
856 if (k->def_uni || !k->def_multi)
857 return -EINVAL;
858 }
859
b9454e83
JB		 860 if (k->idx != -1) {
861 if (k->defmgmt) {
862 if (k->idx < 4 || k->idx > 5)
863 return -EINVAL;
864 } else if (k->def) {
865 if (k->idx < 0 || k->idx > 3)
866 return -EINVAL;
867 } else {
868 if (k->idx < 0 || k->idx > 5)
869 return -EINVAL;
870 }
871 }
872
873 return 0;
874}
875
fffd0934
JB		 876static struct cfg80211_cached_keys *
877nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 878 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 879{
880 struct key_parse parse;
881 struct nlattr *key;
882 struct cfg80211_cached_keys *result;
883 int rem, err, def = 0;
f1c1f17a
JB		 884 bool have_key = false;
885
886 nla_for_each_nested(key, keys, rem) {
887 have_key = true;
888 break;
889 }
890
891 if (!have_key)
892 return NULL;
fffd0934
JB		 893
894 result = kzalloc(sizeof(*result), GFP_KERNEL);
895 if (!result)
896 return ERR_PTR(-ENOMEM);
897
898 result->def = -1;
fffd0934
JB		 899
900 nla_for_each_nested(key, keys, rem) {
901 memset(&parse, 0, sizeof(parse));
902 parse.idx = -1;
903
904 err = nl80211_parse_key_new(key, &parse);
905 if (err)
906 goto error;
907 err = -EINVAL;
908 if (!parse.p.key)
909 goto error;
42ee231c 910 if (parse.idx < 0 || parse.idx > 3)
fffd0934
JB		 911 goto error;
912 if (parse.def) {
913 if (def)
914 goto error;
915 def = 1;
916 result->def = parse.idx;
dbd2fd65
JB		 917 if (!parse.def_uni || !parse.def_multi)
918 goto error;
fffd0934
JB		 919 } else if (parse.defmgmt)
920 goto error;
921 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 922 parse.idx, false, NULL);
fffd0934
JB		 923 if (err)
924 goto error;
386b1f27
JB		 925 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
926 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
927 err = -EINVAL;
928 goto error;
929 }
fffd0934
JB		 930 result->params[parse.idx].cipher = parse.p.cipher;
931 result->params[parse.idx].key_len = parse.p.key_len;
932 result->params[parse.idx].key = result->data[parse.idx];
933 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee 934
386b1f27
JB		 935 /* must be WEP key if we got here */
936 if (no_ht)
937 *no_ht = true;
fffd0934
JB		 938 }
939
f1c1f17a
JB		 940 if (result->def < 0) {
941 err = -EINVAL;
942 goto error;
943 }
944
fffd0934
JB		 945 return result;
946 error:
947 kfree(result);
948 return ERR_PTR(err);
949}
950
951static int nl80211_key_allowed(struct wireless_dev *wdev)
952{
953 ASSERT_WDEV_LOCK(wdev);
954
fffd0934
JB		 955 switch (wdev->iftype) {
956 case NL80211_IFTYPE_AP:
957 case NL80211_IFTYPE_AP_VLAN:
074ac8df 958 case NL80211_IFTYPE_P2P_GO:
ff973af7 959 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 960 break;
961 case NL80211_IFTYPE_ADHOC:
fffd0934 962 case NL80211_IFTYPE_STATION:
074ac8df 963 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 964 if (!wdev->current_bss)
fffd0934
JB		 965 return -ENOLINK;
966 break;
de4fcbad 967 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 968 case NL80211_IFTYPE_OCB:
de4fcbad 969 case NL80211_IFTYPE_MONITOR:
cb3b7d87 970 case NL80211_IFTYPE_NAN:
de4fcbad
JB		 971 case NL80211_IFTYPE_P2P_DEVICE:
972 case NL80211_IFTYPE_WDS:
973 case NUM_NL80211_IFTYPES:
fffd0934
JB		 974 return -EINVAL;
975 }
976
977 return 0;
978}
979
664834de
JM		 980static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
981 struct nlattr *tb)
982{
983 struct ieee80211_channel *chan;
984
985 if (tb == NULL)
986 return NULL;
987 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
988 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
989 return NULL;
990 return chan;
991}
992
7527a782
JB		 993static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
994{
995 struct nlattr *nl_modes = nla_nest_start(msg, attr);
996 int i;
997
998 if (!nl_modes)
999 goto nla_put_failure;
1000
1001 i = 0;
1002 while (ifmodes) {
9360ffd1
DM		 1003 if ((ifmodes & 1) && nla_put_flag(msg, i))
1004 goto nla_put_failure;
7527a782
JB		 1005 ifmodes >>= 1;
1006 i++;
1007 }
1008
1009 nla_nest_end(msg, nl_modes);
1010 return 0;
1011
1012nla_put_failure:
1013 return -ENOBUFS;
1014}
1015
1016static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 1017 struct sk_buff *msg,
1018 bool large)
7527a782
JB		 1019{
1020 struct nlattr *nl_combis;
1021 int i, j;
1022
1023 nl_combis = nla_nest_start(msg,
1024 NL80211_ATTR_INTERFACE_COMBINATIONS);
1025 if (!nl_combis)
1026 goto nla_put_failure;
1027
1028 for (i = 0; i < wiphy->n_iface_combinations; i++) {
1029 const struct ieee80211_iface_combination *c;
1030 struct nlattr *nl_combi, *nl_limits;
1031
1032 c = &wiphy->iface_combinations[i];
1033
1034 nl_combi = nla_nest_start(msg, i + 1);
1035 if (!nl_combi)
1036 goto nla_put_failure;
1037
1038 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1039 if (!nl_limits)
1040 goto nla_put_failure;
1041
1042 for (j = 0; j < c->n_limits; j++) {
1043 struct nlattr *nl_limit;
1044
1045 nl_limit = nla_nest_start(msg, j + 1);
1046 if (!nl_limit)
1047 goto nla_put_failure;
9360ffd1
DM		 1048 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1049 c->limits[j].max))
1050 goto nla_put_failure;
7527a782
JB		 1051 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1052 c->limits[j].types))
1053 goto nla_put_failure;
1054 nla_nest_end(msg, nl_limit);
1055 }
1056
1057 nla_nest_end(msg, nl_limits);
1058
9360ffd1
DM		 1059 if (c->beacon_int_infra_match &&
1060 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1061 goto nla_put_failure;
1062 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1063 c->num_different_channels) ||
1064 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1065 c->max_interfaces))
1066 goto nla_put_failure;
cdc89b97 1067 if (large &&
8c48b50a
FF		 1068 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1069 c->radar_detect_widths) ||
1070 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1071 c->radar_detect_regions)))
cdc89b97 1072 goto nla_put_failure;
0c317a02
PK		 1073 if (c->beacon_int_min_gcd &&
1074 nla_put_u32(msg, NL80211_IFACE_COMB_BI_MIN_GCD,
1075 c->beacon_int_min_gcd))
1076 goto nla_put_failure;
7527a782
JB		 1077
1078 nla_nest_end(msg, nl_combi);
1079 }
1080
1081 nla_nest_end(msg, nl_combis);
1082
1083 return 0;
1084nla_put_failure:
1085 return -ENOBUFS;
1086}
1087
3713b4e3 1088#ifdef CONFIG_PM
b56cf720
JB		 1089static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1090 struct sk_buff *msg)
1091{
964dc9e2 1092 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1093 struct nlattr *nl_tcp;
1094
1095 if (!tcp)
1096 return 0;
1097
1098 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1099 if (!nl_tcp)
1100 return -ENOBUFS;
1101
1102 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1103 tcp->data_payload_max))
1104 return -ENOBUFS;
1105
1106 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1107 tcp->data_payload_max))
1108 return -ENOBUFS;
1109
1110 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1111 return -ENOBUFS;
1112
1113 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1114 sizeof(*tcp->tok), tcp->tok))
1115 return -ENOBUFS;
1116
1117 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1118 tcp->data_interval_max))
1119 return -ENOBUFS;
1120
1121 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1122 tcp->wake_payload_max))
1123 return -ENOBUFS;
1124
1125 nla_nest_end(msg, nl_tcp);
1126 return 0;
1127}
1128
3713b4e3 1129static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1130 struct cfg80211_registered_device *rdev,
b56cf720 1131 bool large)
55682965 1132{
3713b4e3 1133 struct nlattr *nl_wowlan;
55682965 1134
1b8ec87a 1135 if (!rdev->wiphy.wowlan)
3713b4e3 1136 return 0;
55682965 1137
3713b4e3
JB		 1138 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1139 if (!nl_wowlan)
1140 return -ENOBUFS;
9360ffd1 1141
1b8ec87a 1142 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1143 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1144 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1145 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1146 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1147 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1148 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1149 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1150 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1151 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1152 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1153 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1154 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1155 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1156 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1157 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1158 return -ENOBUFS;
9360ffd1 1159
1b8ec87a 1160 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1161 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1162 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1163 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1164 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1165 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1166 };
9360ffd1 1167
3713b4e3
JB		 1168 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1169 sizeof(pat), &pat))
1170 return -ENOBUFS;
1171 }
9360ffd1 1172
75453ccb
LC		 1173 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1174 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1175 rdev->wiphy.wowlan->max_nd_match_sets))
1176 return -ENOBUFS;
1177
1b8ec87a 1178 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1179 return -ENOBUFS;
1180
3713b4e3 1181 nla_nest_end(msg, nl_wowlan);
9360ffd1 1182
3713b4e3
JB		 1183 return 0;
1184}
1185#endif
9360ffd1 1186
be29b99a 1187static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1188 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1189{
1190 struct nl80211_coalesce_rule_support rule;
1191
1b8ec87a 1192 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1193 return 0;
1194
1b8ec87a
ZG		 1195 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1196 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1197 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1198 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1199 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1200 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1201
1202 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1203 return -ENOBUFS;
1204
1205 return 0;
1206}
1207
3713b4e3
JB		 1208static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1209 struct ieee80211_supported_band *sband)
1210{
1211 struct nlattr *nl_rates, *nl_rate;
1212 struct ieee80211_rate *rate;
1213 int i;
87bbbe22 1214
3713b4e3
JB		 1215 /* add HT info */
1216 if (sband->ht_cap.ht_supported &&
1217 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1218 sizeof(sband->ht_cap.mcs),
1219 &sband->ht_cap.mcs) ||
1220 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1221 sband->ht_cap.cap) ||
1222 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1223 sband->ht_cap.ampdu_factor) ||
1224 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1225 sband->ht_cap.ampdu_density)))
1226 return -ENOBUFS;
afe0cbf8 1227
3713b4e3
JB		 1228 /* add VHT info */
1229 if (sband->vht_cap.vht_supported &&
1230 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1231 sizeof(sband->vht_cap.vht_mcs),
1232 &sband->vht_cap.vht_mcs) ||
1233 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1234 sband->vht_cap.cap)))
1235 return -ENOBUFS;
f59ac048 1236
3713b4e3
JB		 1237 /* add bitrates */
1238 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1239 if (!nl_rates)
1240 return -ENOBUFS;
ee688b00 1241
3713b4e3
JB		 1242 for (i = 0; i < sband->n_bitrates; i++) {
1243 nl_rate = nla_nest_start(msg, i);
1244 if (!nl_rate)
1245 return -ENOBUFS;
ee688b00 1246
3713b4e3
JB		 1247 rate = &sband->bitrates[i];
1248 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1249 rate->bitrate))
1250 return -ENOBUFS;
1251 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1252 nla_put_flag(msg,
1253 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1254 return -ENOBUFS;
ee688b00 1255
3713b4e3
JB		 1256 nla_nest_end(msg, nl_rate);
1257 }
d51626df 1258
3713b4e3 1259 nla_nest_end(msg, nl_rates);
bf0c111e 1260
3713b4e3
JB		 1261 return 0;
1262}
ee688b00 1263
3713b4e3
JB		 1264static int
1265nl80211_send_mgmt_stypes(struct sk_buff *msg,
1266 const struct ieee80211_txrx_stypes *mgmt_stypes)
1267{
1268 u16 stypes;
1269 struct nlattr *nl_ftypes, *nl_ifs;
1270 enum nl80211_iftype ift;
1271 int i;
ee688b00 1272
3713b4e3
JB		 1273 if (!mgmt_stypes)
1274 return 0;
5dab3b8a 1275
3713b4e3
JB		 1276 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1277 if (!nl_ifs)
1278 return -ENOBUFS;
e2f367f2 1279
3713b4e3
JB		 1280 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1281 nl_ftypes = nla_nest_start(msg, ift);
1282 if (!nl_ftypes)
1283 return -ENOBUFS;
1284 i = 0;
1285 stypes = mgmt_stypes[ift].tx;
1286 while (stypes) {
1287 if ((stypes & 1) &&
1288 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1289 (i << 4) | IEEE80211_FTYPE_MGMT))
1290 return -ENOBUFS;
1291 stypes >>= 1;
1292 i++;
ee688b00 1293 }
3713b4e3
JB		 1294 nla_nest_end(msg, nl_ftypes);
1295 }
ee688b00 1296
3713b4e3 1297 nla_nest_end(msg, nl_ifs);
ee688b00 1298
3713b4e3
JB		 1299 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1300 if (!nl_ifs)
1301 return -ENOBUFS;
ee688b00 1302
3713b4e3
JB		 1303 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1304 nl_ftypes = nla_nest_start(msg, ift);
1305 if (!nl_ftypes)
1306 return -ENOBUFS;
1307 i = 0;
1308 stypes = mgmt_stypes[ift].rx;
1309 while (stypes) {
1310 if ((stypes & 1) &&
1311 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1312 (i << 4) | IEEE80211_FTYPE_MGMT))
1313 return -ENOBUFS;
1314 stypes >>= 1;
1315 i++;
1316 }
1317 nla_nest_end(msg, nl_ftypes);
1318 }
1319 nla_nest_end(msg, nl_ifs);
ee688b00 1320
3713b4e3
JB		 1321 return 0;
1322}
ee688b00 1323
1794899e
JB		 1324#define CMD(op, n) \
1325 do { \
1326 if (rdev->ops->op) { \
1327 i++; \
1328 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1329 goto nla_put_failure; \
1330 } \
1331 } while (0)
1332
1333static int nl80211_add_commands_unsplit(struct cfg80211_registered_device *rdev,
1334 struct sk_buff *msg)
1335{
1336 int i = 0;
1337
1338 /*
1339 * do *NOT* add anything into this function, new things need to be
1340 * advertised only to new versions of userspace that can deal with
1341 * the split (and they can't possibly care about new features...
1342 */
1343 CMD(add_virtual_intf, NEW_INTERFACE);
1344 CMD(change_virtual_intf, SET_INTERFACE);
1345 CMD(add_key, NEW_KEY);
1346 CMD(start_ap, START_AP);
1347 CMD(add_station, NEW_STATION);
1348 CMD(add_mpath, NEW_MPATH);
1349 CMD(update_mesh_config, SET_MESH_CONFIG);
1350 CMD(change_bss, SET_BSS);
1351 CMD(auth, AUTHENTICATE);
1352 CMD(assoc, ASSOCIATE);
1353 CMD(deauth, DEAUTHENTICATE);
1354 CMD(disassoc, DISASSOCIATE);
1355 CMD(join_ibss, JOIN_IBSS);
1356 CMD(join_mesh, JOIN_MESH);
1357 CMD(set_pmksa, SET_PMKSA);
1358 CMD(del_pmksa, DEL_PMKSA);
1359 CMD(flush_pmksa, FLUSH_PMKSA);
1360 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1361 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1362 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1363 CMD(mgmt_tx, FRAME);
1364 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1365 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1366 i++;
1367 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1368 goto nla_put_failure;
1369 }
1370 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1371 rdev->ops->join_mesh) {
1372 i++;
1373 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1374 goto nla_put_failure;
1375 }
1376 CMD(set_wds_peer, SET_WDS_PEER);
1377 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1378 CMD(tdls_mgmt, TDLS_MGMT);
1379 CMD(tdls_oper, TDLS_OPER);
1380 }
ca986ad9 1381 if (rdev->wiphy.max_sched_scan_reqs)
1794899e
JB		 1382 CMD(sched_scan_start, START_SCHED_SCAN);
1383 CMD(probe_client, PROBE_CLIENT);
1384 CMD(set_noack_map, SET_NOACK_MAP);
1385 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1386 i++;
1387 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1388 goto nla_put_failure;
1389 }
1390 CMD(start_p2p_device, START_P2P_DEVICE);
1391 CMD(set_mcast_rate, SET_MCAST_RATE);
1392#ifdef CONFIG_NL80211_TESTMODE
1393 CMD(testmode_cmd, TESTMODE);
1394#endif
1395
1396 if (rdev->ops->connect || rdev->ops->auth) {
1397 i++;
1398 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1399 goto nla_put_failure;
1400 }
1401
1402 if (rdev->ops->disconnect || rdev->ops->deauth) {
1403 i++;
1404 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1405 goto nla_put_failure;
1406 }
1407
1408 return i;
1409 nla_put_failure:
1410 return -ENOBUFS;
1411}
1412
86e8cf98
JB		 1413struct nl80211_dump_wiphy_state {
1414 s64 filter_wiphy;
1415 long start;
019ae3a9 1416 long split_start, band_start, chan_start, capa_start;
86e8cf98
JB		 1417 bool split;
1418};
1419
1b8ec87a 1420static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1421 enum nl80211_commands cmd,
3713b4e3 1422 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1423 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1424{
1425 void *hdr;
1426 struct nlattr *nl_bands, *nl_band;
1427 struct nlattr *nl_freqs, *nl_freq;
1428 struct nlattr *nl_cmds;
57fbcce3 1429 enum nl80211_band band;
3713b4e3
JB		 1430 struct ieee80211_channel *chan;
1431 int i;
1432 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1433 rdev->wiphy.mgmt_stypes;
fe1abafd 1434 u32 features;
ee688b00 1435
3bb20556 1436 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1437 if (!hdr)
1438 return -ENOBUFS;
ee688b00 1439
86e8cf98
JB		 1440 if (WARN_ON(!state))
1441 return -EINVAL;
ee688b00 1442
1b8ec87a 1443 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1444 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1445 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1446 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1447 cfg80211_rdev_list_generation))
8fdc621d
JB		 1448 goto nla_put_failure;
1449
3bb20556
JB		 1450 if (cmd != NL80211_CMD_NEW_WIPHY)
1451 goto finish;
1452
86e8cf98 1453 switch (state->split_start) {
3713b4e3
JB		 1454 case 0:
1455 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1456 rdev->wiphy.retry_short) ||
3713b4e3 1457 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1458 rdev->wiphy.retry_long) ||
3713b4e3 1459 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1460 rdev->wiphy.frag_threshold) ||
3713b4e3 1461 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1462 rdev->wiphy.rts_threshold) ||
3713b4e3 1463 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1464 rdev->wiphy.coverage_class) ||
3713b4e3 1465 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1466 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1467 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1468 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1469 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1470 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1471 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1472 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1473 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1474 rdev->wiphy.max_match_sets) ||
1475 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1476 rdev->wiphy.max_sched_scan_plans) ||
1477 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1478 rdev->wiphy.max_sched_scan_plan_interval) ||
1479 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1480 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1481 goto nla_put_failure;
3713b4e3 1482
1b8ec87a 1483 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1484 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1485 goto nla_put_failure;
1b8ec87a 1486 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1487 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1488 goto nla_put_failure;
1b8ec87a 1489 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1490 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1491 goto nla_put_failure;
1b8ec87a 1492 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1493 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1494 goto nla_put_failure;
1b8ec87a 1495 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1496 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1497 goto nla_put_failure;
1b8ec87a 1498 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1499 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1500 goto nla_put_failure;
86e8cf98
JB		 1501 state->split_start++;
1502 if (state->split)
3713b4e3
JB		 1503 break;
1504 case 1:
1505 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1506 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1507 rdev->wiphy.cipher_suites))
3713b4e3 1508 goto nla_put_failure;
4745fc09 1509
3713b4e3 1510 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1511 rdev->wiphy.max_num_pmkids))
3713b4e3 1512 goto nla_put_failure;
b23aa676 1513
1b8ec87a 1514 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1515 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1516 goto nla_put_failure;
b23aa676 1517
3713b4e3 1518 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1519 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1520 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1521 rdev->wiphy.available_antennas_rx))
9360ffd1 1522 goto nla_put_failure;
b23aa676 1523
1b8ec87a 1524 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1525 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1526 rdev->wiphy.probe_resp_offload))
3713b4e3 1527 goto nla_put_failure;
8fdc621d 1528
1b8ec87a
ZG		 1529 if ((rdev->wiphy.available_antennas_tx ||
1530 rdev->wiphy.available_antennas_rx) &&
1531 rdev->ops->get_antenna) {
3713b4e3
JB		 1532 u32 tx_ant = 0, rx_ant = 0;
1533 int res;
7a087e74 1534
1b8ec87a 1535 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1536 if (!res) {
1537 if (nla_put_u32(msg,
1538 NL80211_ATTR_WIPHY_ANTENNA_TX,
1539 tx_ant) ||
1540 nla_put_u32(msg,
1541 NL80211_ATTR_WIPHY_ANTENNA_RX,
1542 rx_ant))
1543 goto nla_put_failure;
1544 }
1545 }
a293911d 1546
86e8cf98
JB		 1547 state->split_start++;
1548 if (state->split)
3713b4e3
JB		 1549 break;
1550 case 2:
1551 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1552 rdev->wiphy.interface_modes))
3713b4e3 1553 goto nla_put_failure;
86e8cf98
JB		 1554 state->split_start++;
1555 if (state->split)
3713b4e3
JB		 1556 break;
1557 case 3:
1558 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1559 if (!nl_bands)
1560 goto nla_put_failure;
f7ca38df 1561
86e8cf98 1562 for (band = state->band_start;
57fbcce3 1563 band < NUM_NL80211_BANDS; band++) {
3713b4e3 1564 struct ieee80211_supported_band *sband;
2e161f78 1565
1b8ec87a 1566 sband = rdev->wiphy.bands[band];
2e161f78 1567
3713b4e3
JB		 1568 if (!sband)
1569 continue;
1570
1571 nl_band = nla_nest_start(msg, band);
1572 if (!nl_band)
2e161f78 1573 goto nla_put_failure;
3713b4e3 1574
86e8cf98 1575 switch (state->chan_start) {
3713b4e3
JB		 1576 case 0:
1577 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1578 goto nla_put_failure;
86e8cf98
JB		 1579 state->chan_start++;
1580 if (state->split)
3713b4e3
JB		 1581 break;
1582 default:
1583 /* add frequencies */
1584 nl_freqs = nla_nest_start(
1585 msg, NL80211_BAND_ATTR_FREQS);
1586 if (!nl_freqs)
1587 goto nla_put_failure;
1588
86e8cf98 1589 for (i = state->chan_start - 1;
3713b4e3
JB		 1590 i < sband->n_channels;
1591 i++) {
1592 nl_freq = nla_nest_start(msg, i);
1593 if (!nl_freq)
1594 goto nla_put_failure;
1595
1596 chan = &sband->channels[i];
1597
86e8cf98
JB		 1598 if (nl80211_msg_put_channel(
1599 msg, chan,
1600 state->split))
3713b4e3
JB		 1601 goto nla_put_failure;
1602
1603 nla_nest_end(msg, nl_freq);
86e8cf98 1604 if (state->split)
3713b4e3
JB		 1605 break;
1606 }
1607 if (i < sband->n_channels)
86e8cf98 1608 state->chan_start = i + 2;
3713b4e3 1609 else
86e8cf98 1610 state->chan_start = 0;
3713b4e3
JB		 1611 nla_nest_end(msg, nl_freqs);
1612 }
1613
1614 nla_nest_end(msg, nl_band);
1615
86e8cf98 1616 if (state->split) {
3713b4e3 1617 /* start again here */
86e8cf98 1618 if (state->chan_start)
3713b4e3
JB		 1619 band--;
1620 break;
2e161f78 1621 }
2e161f78 1622 }
3713b4e3 1623 nla_nest_end(msg, nl_bands);
2e161f78 1624
57fbcce3 1625 if (band < NUM_NL80211_BANDS)
86e8cf98 1626 state->band_start = band + 1;
3713b4e3 1627 else
86e8cf98 1628 state->band_start = 0;
74b70a4e 1629
3713b4e3 1630 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1631 if (state->band_start == 0 && state->chan_start == 0)
1632 state->split_start++;
1633 if (state->split)
3713b4e3
JB		 1634 break;
1635 case 4:
1636 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1637 if (!nl_cmds)
2e161f78
JB		 1638 goto nla_put_failure;
1639
1794899e
JB		 1640 i = nl80211_add_commands_unsplit(rdev, msg);
1641 if (i < 0)
1642 goto nla_put_failure;
86e8cf98 1643 if (state->split) {
5de17984
AS		 1644 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1645 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1646 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1647 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1648 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1649 if (rdev->wiphy.features &
1650 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1651 CMD(add_tx_ts, ADD_TX_TS);
ce0ce13a 1652 CMD(set_multicast_to_unicast, SET_MULTICAST_TO_UNICAST);
088e8df8 1653 CMD(update_connect_params, UPDATE_CONNECT_PARAMS);
5de17984 1654 }
3713b4e3 1655#undef CMD
ff1b6e69 1656
3713b4e3 1657 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1658 state->split_start++;
1659 if (state->split)
3713b4e3
JB		 1660 break;
1661 case 5:
1b8ec87a
ZG		 1662 if (rdev->ops->remain_on_channel &&
1663 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1664 nla_put_u32(msg,
1665 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1666 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1667 goto nla_put_failure;
1668
1b8ec87a 1669 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1670 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1671 goto nla_put_failure;
1672
1673 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1674 goto nla_put_failure;
86e8cf98
JB		 1675 state->split_start++;
1676 if (state->split)
3713b4e3
JB		 1677 break;
1678 case 6:
1679#ifdef CONFIG_PM
1b8ec87a 1680 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1681 goto nla_put_failure;
86e8cf98
JB		 1682 state->split_start++;
1683 if (state->split)
3713b4e3
JB		 1684 break;
1685#else
86e8cf98 1686 state->split_start++;
dfb89c56 1687#endif
3713b4e3
JB		 1688 case 7:
1689 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1690 rdev->wiphy.software_iftypes))
3713b4e3 1691 goto nla_put_failure;
ff1b6e69 1692
1b8ec87a 1693 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1694 state->split))
3713b4e3 1695 goto nla_put_failure;
7527a782 1696
86e8cf98
JB		 1697 state->split_start++;
1698 if (state->split)
3713b4e3
JB		 1699 break;
1700 case 8:
1b8ec87a 1701 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1702 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1703 rdev->wiphy.ap_sme_capa))
3713b4e3 1704 goto nla_put_failure;
7527a782 1705
1b8ec87a 1706 features = rdev->wiphy.features;
fe1abafd
JB		 1707 /*
1708 * We can only add the per-channel limit information if the
1709 * dump is split, otherwise it makes it too big. Therefore
1710 * only advertise it in that case.
1711 */
86e8cf98 1712 if (state->split)
fe1abafd
JB		 1713 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1714 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1715 goto nla_put_failure;
562a7480 1716
1b8ec87a 1717 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1718 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1719 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1720 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1721 goto nla_put_failure;
1f074bd8 1722
1b8ec87a
ZG		 1723 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1724 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1725 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1726 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1727 goto nla_put_failure;
7e7c8926 1728
3713b4e3
JB		 1729 /*
1730 * Any information below this point is only available to
1731 * applications that can deal with it being split. This
1732 * helps ensure that newly added capabilities don't break
1733 * older tools by overrunning their buffers.
1734 *
1735 * We still increment split_start so that in the split
1736 * case we'll continue with more data in the next round,
1737 * but break unconditionally so unsplit data stops here.
1738 */
86e8cf98 1739 state->split_start++;
3713b4e3
JB		 1740 break;
1741 case 9:
1b8ec87a 1742 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1743 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1744 rdev->wiphy.extended_capabilities_len,
1745 rdev->wiphy.extended_capabilities) ||
fe1abafd 1746 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1747 rdev->wiphy.extended_capabilities_len,
1748 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1749 goto nla_put_failure;
a50df0c4 1750
1b8ec87a 1751 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1752 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1753 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1754 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1755 goto nla_put_failure;
1756
be29b99a
AK		 1757 state->split_start++;
1758 break;
1759 case 10:
1b8ec87a 1760 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1761 goto nla_put_failure;
1762
1b8ec87a 1763 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1764 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1765 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1766 goto nla_put_failure;
b43504cf 1767
1b8ec87a 1768 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1769 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1770 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1771 goto nla_put_failure;
1772
ad7e718c
JB		 1773 state->split_start++;
1774 break;
1775 case 11:
1b8ec87a 1776 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1777 const struct nl80211_vendor_cmd_info *info;
1778 struct nlattr *nested;
1779
1780 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1781 if (!nested)
1782 goto nla_put_failure;
1783
1b8ec87a
ZG		 1784 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1785 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1786 if (nla_put(msg, i + 1, sizeof(*info), info))
1787 goto nla_put_failure;
1788 }
1789 nla_nest_end(msg, nested);
1790 }
1791
1b8ec87a 1792 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1793 const struct nl80211_vendor_cmd_info *info;
1794 struct nlattr *nested;
ad7e718c 1795
567ffc35
JB		 1796 nested = nla_nest_start(msg,
1797 NL80211_ATTR_VENDOR_EVENTS);
1798 if (!nested)
ad7e718c 1799 goto nla_put_failure;
567ffc35 1800
1b8ec87a
ZG		 1801 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1802 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1803 if (nla_put(msg, i + 1, sizeof(*info), info))
1804 goto nla_put_failure;
1805 }
1806 nla_nest_end(msg, nested);
1807 }
9a774c78
AO		 1808 state->split_start++;
1809 break;
1810 case 12:
1811 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1812 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1813 rdev->wiphy.max_num_csa_counters))
1814 goto nla_put_failure;
01e0daa4 1815
1bdd716c
AN		 1816 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1817 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1818 goto nla_put_failure;
1819
ca986ad9
AVS		 1820 if (rdev->wiphy.max_sched_scan_reqs &&
1821 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_MAX_REQS,
1822 rdev->wiphy.max_sched_scan_reqs))
1823 goto nla_put_failure;
1824
d75bb06b
GKS		 1825 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1826 sizeof(rdev->wiphy.ext_features),
1827 rdev->wiphy.ext_features))
1828 goto nla_put_failure;
1829
38de03d2
AS		 1830 if (rdev->wiphy.bss_select_support) {
1831 struct nlattr *nested;
1832 u32 bss_select_support = rdev->wiphy.bss_select_support;
1833
1834 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1835 if (!nested)
1836 goto nla_put_failure;
1837
1838 i = 0;
1839 while (bss_select_support) {
1840 if ((bss_select_support & 1) &&
1841 nla_put_flag(msg, i))
1842 goto nla_put_failure;
1843 i++;
1844 bss_select_support >>= 1;
1845 }
1846 nla_nest_end(msg, nested);
1847 }
1848
019ae3a9
KV		 1849 state->split_start++;
1850 break;
1851 case 13:
1852 if (rdev->wiphy.num_iftype_ext_capab &&
1853 rdev->wiphy.iftype_ext_capab) {
1854 struct nlattr *nested_ext_capab, *nested;
1855
1856 nested = nla_nest_start(msg,
1857 NL80211_ATTR_IFTYPE_EXT_CAPA);
1858 if (!nested)
1859 goto nla_put_failure;
1860
1861 for (i = state->capa_start;
1862 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1863 const struct wiphy_iftype_ext_capab *capab;
1864
1865 capab = &rdev->wiphy.iftype_ext_capab[i];
1866
1867 nested_ext_capab = nla_nest_start(msg, i);
1868 if (!nested_ext_capab ||
1869 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1870 capab->iftype) ||
1871 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1872 capab->extended_capabilities_len,
1873 capab->extended_capabilities) ||
1874 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1875 capab->extended_capabilities_len,
1876 capab->extended_capabilities_mask))
1877 goto nla_put_failure;
1878
1879 nla_nest_end(msg, nested_ext_capab);
1880 if (state->split)
1881 break;
1882 }
1883 nla_nest_end(msg, nested);
1884 if (i < rdev->wiphy.num_iftype_ext_capab) {
1885 state->capa_start = i + 1;
1886 break;
1887 }
1888 }
1889
8585989d
LC		 1890 if (nla_put_u32(msg, NL80211_ATTR_BANDS,
1891 rdev->wiphy.nan_supported_bands))
1892 goto nla_put_failure;
1893
3713b4e3 1894 /* done */
86e8cf98 1895 state->split_start = 0;
3713b4e3
JB		 1896 break;
1897 }
3bb20556 1898 finish:
053c095a
JB		 1899 genlmsg_end(msg, hdr);
1900 return 0;
55682965
JB		 1901
1902 nla_put_failure:
bc3ed28c
TG		 1903 genlmsg_cancel(msg, hdr);
1904 return -EMSGSIZE;
55682965
JB		 1905}
1906
86e8cf98
JB		 1907static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1908 struct netlink_callback *cb,
1909 struct nl80211_dump_wiphy_state *state)
1910{
c90c39da 1911 struct nlattr **tb = genl_family_attrbuf(&nl80211_fam);
fceb6435
JB		 1912 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, tb,
1913 nl80211_fam.maxattr, nl80211_policy, NULL);
86e8cf98
JB		 1914 /* ignore parse errors for backward compatibility */
1915 if (ret)
1916 return 0;
1917
1918 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1919 if (tb[NL80211_ATTR_WIPHY])
1920 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1921 if (tb[NL80211_ATTR_WDEV])
1922 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1923 if (tb[NL80211_ATTR_IFINDEX]) {
1924 struct net_device *netdev;
1925 struct cfg80211_registered_device *rdev;
1926 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1927
7f2b8562 1928 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1929 if (!netdev)
1930 return -ENODEV;
1931 if (netdev->ieee80211_ptr) {
f26cbf40 1932 rdev = wiphy_to_rdev(
86e8cf98
JB		 1933 netdev->ieee80211_ptr->wiphy);
1934 state->filter_wiphy = rdev->wiphy_idx;
1935 }
86e8cf98
JB		 1936 }
1937
1938 return 0;
1939}
1940
55682965
JB		 1941static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1942{
645e77de 1943 int idx = 0, ret;
86e8cf98 1944 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1945 struct cfg80211_registered_device *rdev;
3a5a423b 1946
5fe231e8 1947 rtnl_lock();
86e8cf98
JB		 1948 if (!state) {
1949 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1950 if (!state) {
1951 rtnl_unlock();
86e8cf98 1952 return -ENOMEM;
3713b4e3 1953 }
86e8cf98
JB		 1954 state->filter_wiphy = -1;
1955 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1956 if (ret) {
1957 kfree(state);
1958 rtnl_unlock();
1959 return ret;
3713b4e3 1960 }
86e8cf98 1961 cb->args[0] = (long)state;
3713b4e3
JB		 1962 }
1963
1b8ec87a
ZG		 1964 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1965 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1966 continue;
86e8cf98 1967 if (++idx <= state->start)
55682965 1968 continue;
86e8cf98 1969 if (state->filter_wiphy != -1 &&
1b8ec87a 1970 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1971 continue;
1972 /* attempt to fit multiple wiphy data chunks into the skb */
1973 do {
3bb20556
JB		 1974 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1975 skb,
3713b4e3
JB		 1976 NETLINK_CB(cb->skb).portid,
1977 cb->nlh->nlmsg_seq,
86e8cf98 1978 NLM_F_MULTI, state);
3713b4e3
JB		 1979 if (ret < 0) {
1980 /*
1981 * If sending the wiphy data didn't fit (ENOBUFS
1982 * or EMSGSIZE returned), this SKB is still
1983 * empty (so it's not too big because another
1984 * wiphy dataset is already in the skb) and
1985 * we've not tried to adjust the dump allocation
1986 * yet ... then adjust the alloc size to be
1987 * bigger, and return 1 but with the empty skb.
1988 * This results in an empty message being RX'ed
1989 * in userspace, but that is ignored.
1990 *
1991 * We can then retry with the larger buffer.
1992 */
1993 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1994 !skb->len && !state->split &&
3713b4e3
JB		 1995 cb->min_dump_alloc < 4096) {
1996 cb->min_dump_alloc = 4096;
f12cb289 1997 state->split_start = 0;
d98cae64 1998 rtnl_unlock();
3713b4e3
JB		 1999 return 1;
2000 }
2001 idx--;
2002 break;
645e77de 2003 }
86e8cf98 2004 } while (state->split_start > 0);
3713b4e3 2005 break;
55682965 2006 }
5fe231e8 2007 rtnl_unlock();
55682965 2008
86e8cf98 2009 state->start = idx;
55682965
JB		 2010
2011 return skb->len;
2012}
2013
86e8cf98
JB		 2014static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
2015{
2016 kfree((void *)cb->args[0]);
2017 return 0;
2018}
2019
55682965
JB		 2020static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
2021{
2022 struct sk_buff *msg;
1b8ec87a 2023 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 2024 struct nl80211_dump_wiphy_state state = {};
55682965 2025
645e77de 2026 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 2027 if (!msg)
4c476991 2028 return -ENOMEM;
55682965 2029
3bb20556
JB		 2030 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
2031 info->snd_portid, info->snd_seq, 0,
86e8cf98 2032 &state) < 0) {
4c476991
JB		 2033 nlmsg_free(msg);
2034 return -ENOBUFS;
2035 }
55682965 2036
134e6375 2037 return genlmsg_reply(msg, info);
55682965
JB		 2038}
2039
31888487
JM		 2040static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
2041 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
2042 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
2043 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
2044 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
2045 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
2046};
2047
2048static int parse_txq_params(struct nlattr *tb[],
2049 struct ieee80211_txq_params *txq_params)
2050{
a3304b0a 2051 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 2052 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
2053 !tb[NL80211_TXQ_ATTR_AIFS])
2054 return -EINVAL;
2055
a3304b0a 2056 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 2057 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
2058 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
2059 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
2060 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
2061
a3304b0a
JB		 2062 if (txq_params->ac >= NL80211_NUM_ACS)
2063 return -EINVAL;
2064
31888487
JM		 2065 return 0;
2066}
2067
f444de05
JB		 2068static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2069{
2070 /*
cc1d2806
JB		 2071 * You can only set the channel explicitly for WDS interfaces,
2072 * all others have their channel managed via their respective
2073 * "establish a connection" command (connect, join, ...)
2074 *
2075 * For AP/GO and mesh mode, the channel can be set with the
2076 * channel userspace API, but is only stored and passed to the
2077 * low-level driver when the AP starts or the mesh is joined.
2078 * This is for backward compatibility, userspace can also give
2079 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 2080 *
2081 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 2082 * whatever else is going on, so they have their own special
2083 * operation to set the monitor channel if possible.
f444de05
JB		 2084 */
2085 return !wdev ||
2086 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 2087 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 2088 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2089 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 2090}
2091
683b6d3b
JB		 2092static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2093 struct genl_info *info,
2094 struct cfg80211_chan_def *chandef)
2095{
dbeca2ea 2096 u32 control_freq;
683b6d3b
JB		 2097
2098 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2099 return -EINVAL;
2100
2101 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2102
2103 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 2104 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2105 chandef->center_freq1 = control_freq;
2106 chandef->center_freq2 = 0;
683b6d3b
JB		 2107
2108 /* Primary channel not allowed */
2109 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2110 return -EINVAL;
2111
3d9d1d66
JB		 2112 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2113 enum nl80211_channel_type chantype;
2114
2115 chantype = nla_get_u32(
2116 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2117
2118 switch (chantype) {
2119 case NL80211_CHAN_NO_HT:
2120 case NL80211_CHAN_HT20:
2121 case NL80211_CHAN_HT40PLUS:
2122 case NL80211_CHAN_HT40MINUS:
2123 cfg80211_chandef_create(chandef, chandef->chan,
2124 chantype);
ffa4629e
TM		 2125 /* user input for center_freq is incorrect */
2126 if (info->attrs[NL80211_ATTR_CENTER_FREQ1] &&
2127 chandef->center_freq1 != nla_get_u32(
2128 info->attrs[NL80211_ATTR_CENTER_FREQ1]))
2129 return -EINVAL;
2130 /* center_freq2 must be zero */
2131 if (info->attrs[NL80211_ATTR_CENTER_FREQ2] &&
2132 nla_get_u32(info->attrs[NL80211_ATTR_CENTER_FREQ2]))
2133 return -EINVAL;
3d9d1d66
JB		 2134 break;
2135 default:
2136 return -EINVAL;
2137 }
2138 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2139 chandef->width =
2140 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2141 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2142 chandef->center_freq1 =
2143 nla_get_u32(
2144 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2145 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2146 chandef->center_freq2 =
2147 nla_get_u32(
2148 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2149 }
2150
9f5e8f6e 2151 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 2152 return -EINVAL;
2153
9f5e8f6e
JB		 2154 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2155 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 2156 return -EINVAL;
2157
2f301ab2
SW		 2158 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2159 chandef->width == NL80211_CHAN_WIDTH_10) &&
2160 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2161 return -EINVAL;
2162
683b6d3b
JB		 2163 return 0;
2164}
2165
f444de05 2166static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 2167 struct net_device *dev,
f444de05
JB		 2168 struct genl_info *info)
2169{
683b6d3b 2170 struct cfg80211_chan_def chandef;
f444de05 2171 int result;
e8c9bd5b 2172 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2173 struct wireless_dev *wdev = NULL;
e8c9bd5b 2174
e16821bc
JM		 2175 if (dev)
2176 wdev = dev->ieee80211_ptr;
f444de05
JB		 2177 if (!nl80211_can_set_dev_channel(wdev))
2178 return -EOPNOTSUPP;
e16821bc
JM		 2179 if (wdev)
2180 iftype = wdev->iftype;
f444de05 2181
683b6d3b
JB		 2182 result = nl80211_parse_chandef(rdev, info, &chandef);
2183 if (result)
2184 return result;
f444de05 2185
e8c9bd5b 2186 switch (iftype) {
aa430da4
JB		 2187 case NL80211_IFTYPE_AP:
2188 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2189 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2190 iftype)) {
aa430da4
JB		 2191 result = -EINVAL;
2192 break;
2193 }
e16821bc
JM		 2194 if (wdev->beacon_interval) {
2195 if (!dev || !rdev->ops->set_ap_chanwidth ||
2196 !(rdev->wiphy.features &
2197 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2198 result = -EBUSY;
2199 break;
2200 }
2201
2202 /* Only allow dynamic channel width changes */
2203 if (chandef.chan != wdev->preset_chandef.chan) {
2204 result = -EBUSY;
2205 break;
2206 }
2207 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2208 if (result)
2209 break;
2210 }
683b6d3b 2211 wdev->preset_chandef = chandef;
aa430da4
JB		 2212 result = 0;
2213 break;
cc1d2806 2214 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2215 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2216 break;
e8c9bd5b 2217 case NL80211_IFTYPE_MONITOR:
683b6d3b 2218 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2219 break;
aa430da4 2220 default:
e8c9bd5b 2221 result = -EINVAL;
f444de05 2222 }
f444de05
JB		 2223
2224 return result;
2225}
2226
2227static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2228{
4c476991
JB		 2229 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2230 struct net_device *netdev = info->user_ptr[1];
f444de05 2231
e16821bc 2232 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2233}
2234
e8347eba
BJ		 2235static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2236{
43b19952
JB		 2237 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2238 struct net_device *dev = info->user_ptr[1];
2239 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2240 const u8 *bssid;
e8347eba
BJ		 2241
2242 if (!info->attrs[NL80211_ATTR_MAC])
2243 return -EINVAL;
2244
43b19952
JB		 2245 if (netif_running(dev))
2246 return -EBUSY;
e8347eba 2247
43b19952
JB		 2248 if (!rdev->ops->set_wds_peer)
2249 return -EOPNOTSUPP;
e8347eba 2250
43b19952
JB		 2251 if (wdev->iftype != NL80211_IFTYPE_WDS)
2252 return -EOPNOTSUPP;
e8347eba
BJ		 2253
2254 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2255 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2256}
2257
55682965
JB		 2258static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2259{
2260 struct cfg80211_registered_device *rdev;
f444de05
JB		 2261 struct net_device *netdev = NULL;
2262 struct wireless_dev *wdev;
a1e567c8 2263 int result = 0, rem_txq_params = 0;
31888487 2264 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2265 u32 changed;
2266 u8 retry_short = 0, retry_long = 0;
2267 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2268 u8 coverage_class = 0;
55682965 2269
5fe231e8
JB		 2270 ASSERT_RTNL();
2271
f444de05
JB		 2272 /*
2273 * Try to find the wiphy and netdev. Normally this
2274 * function shouldn't need the netdev, but this is
2275 * done for backward compatibility -- previously
2276 * setting the channel was done per wiphy, but now
2277 * it is per netdev. Previous userland like hostapd
2278 * also passed a netdev to set_wiphy, so that it is
2279 * possible to let that go to the right netdev!
2280 */
4bbf4d56 2281
f444de05
JB		 2282 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2283 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2284
7f2b8562 2285 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2286 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2287 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2288 else
f444de05 2289 netdev = NULL;
4bbf4d56
JB		 2290 }
2291
f444de05 2292 if (!netdev) {
878d9ec7
JB		 2293 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2294 info->attrs);
5fe231e8 2295 if (IS_ERR(rdev))
4c476991 2296 return PTR_ERR(rdev);
f444de05
JB		 2297 wdev = NULL;
2298 netdev = NULL;
2299 result = 0;
71fe96bf 2300 } else
f444de05 2301 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2302
2303 /*
2304 * end workaround code, by now the rdev is available
2305 * and locked, and wdev may or may not be NULL.
2306 */
4bbf4d56
JB		 2307
2308 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2309 result = cfg80211_dev_rename(
2310 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2311
4bbf4d56 2312 if (result)
7f2b8562 2313 return result;
31888487
JM		 2314
2315 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2316 struct ieee80211_txq_params txq_params;
2317 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2318
7f2b8562
YX		 2319 if (!rdev->ops->set_txq_params)
2320 return -EOPNOTSUPP;
31888487 2321
7f2b8562
YX		 2322 if (!netdev)
2323 return -EINVAL;
f70f01c2 2324
133a3ff2 2325 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2326 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2327 return -EINVAL;
133a3ff2 2328
7f2b8562
YX		 2329 if (!netif_running(netdev))
2330 return -ENETDOWN;
2b5f8b0b 2331
31888487
JM		 2332 nla_for_each_nested(nl_txq_params,
2333 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2334 rem_txq_params) {
bfe2c7b1
JB		 2335 result = nla_parse_nested(tb, NL80211_TXQ_ATTR_MAX,
2336 nl_txq_params,
fe52145f
JB		 2337 txq_params_policy,
2338 info->extack);
ae811e21
JB		 2339 if (result)
2340 return result;
31888487
JM		 2341 result = parse_txq_params(tb, &txq_params);
2342 if (result)
7f2b8562 2343 return result;
31888487 2344
e35e4d28
HG		 2345 result = rdev_set_txq_params(rdev, netdev,
2346 &txq_params);
31888487 2347 if (result)
7f2b8562 2348 return result;
31888487
JM		 2349 }
2350 }
55682965 2351
72bdcf34 2352 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2353 result = __nl80211_set_channel(
2354 rdev,
2355 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2356 info);
72bdcf34 2357 if (result)
7f2b8562 2358 return result;
72bdcf34
JM		 2359 }
2360
98d2ff8b 2361 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2362 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2363 enum nl80211_tx_power_setting type;
2364 int idx, mbm = 0;
2365
c8442118
JB		 2366 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2367 txp_wdev = NULL;
2368
7f2b8562
YX		 2369 if (!rdev->ops->set_tx_power)
2370 return -EOPNOTSUPP;
98d2ff8b
JO		 2371
2372 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2373 type = nla_get_u32(info->attrs[idx]);
2374
2375 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2376 (type != NL80211_TX_POWER_AUTOMATIC))
2377 return -EINVAL;
98d2ff8b
JO		 2378
2379 if (type != NL80211_TX_POWER_AUTOMATIC) {
2380 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2381 mbm = nla_get_u32(info->attrs[idx]);
2382 }
2383
c8442118 2384 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2385 if (result)
7f2b8562 2386 return result;
98d2ff8b
JO		 2387 }
2388
afe0cbf8
BR		 2389 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2390 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2391 u32 tx_ant, rx_ant;
7a087e74 2392
7f531e03
BR		 2393 if ((!rdev->wiphy.available_antennas_tx &&
2394 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2395 !rdev->ops->set_antenna)
2396 return -EOPNOTSUPP;
afe0cbf8
BR		 2397
2398 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2399 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2400
a7ffac95 2401 /* reject antenna configurations which don't match the
7f531e03
BR		 2402 * available antenna masks, except for the "all" mask */
2403 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2404 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2405 return -EINVAL;
a7ffac95 2406
7f531e03
BR		 2407 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2408 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2409
e35e4d28 2410 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2411 if (result)
7f2b8562 2412 return result;
afe0cbf8
BR		 2413 }
2414
b9a5f8ca
JM		 2415 changed = 0;
2416
2417 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2418 retry_short = nla_get_u8(
2419 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2420 if (retry_short == 0)
2421 return -EINVAL;
2422
b9a5f8ca
JM		 2423 changed |= WIPHY_PARAM_RETRY_SHORT;
2424 }
2425
2426 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2427 retry_long = nla_get_u8(
2428 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2429 if (retry_long == 0)
2430 return -EINVAL;
2431
b9a5f8ca
JM		 2432 changed |= WIPHY_PARAM_RETRY_LONG;
2433 }
2434
2435 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2436 frag_threshold = nla_get_u32(
2437 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2438 if (frag_threshold < 256)
2439 return -EINVAL;
2440
b9a5f8ca
JM		 2441 if (frag_threshold != (u32) -1) {
2442 /*
2443 * Fragments (apart from the last one) are required to
2444 * have even length. Make the fragmentation code
2445 * simpler by stripping LSB should someone try to use
2446 * odd threshold value.
2447 */
2448 frag_threshold &= ~0x1;
2449 }
2450 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2451 }
2452
2453 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2454 rts_threshold = nla_get_u32(
2455 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2456 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2457 }
2458
81077e82 2459 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2460 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2461 return -EINVAL;
2462
81077e82
LT		 2463 coverage_class = nla_get_u8(
2464 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2465 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2466 }
2467
3057dbfd
LB		 2468 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2469 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2470 return -EOPNOTSUPP;
2471
2472 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2473 }
2474
b9a5f8ca
JM		 2475 if (changed) {
2476 u8 old_retry_short, old_retry_long;
2477 u32 old_frag_threshold, old_rts_threshold;
81077e82 2478 u8 old_coverage_class;
b9a5f8ca 2479
7f2b8562
YX		 2480 if (!rdev->ops->set_wiphy_params)
2481 return -EOPNOTSUPP;
b9a5f8ca
JM		 2482
2483 old_retry_short = rdev->wiphy.retry_short;
2484 old_retry_long = rdev->wiphy.retry_long;
2485 old_frag_threshold = rdev->wiphy.frag_threshold;
2486 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2487 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2488
2489 if (changed & WIPHY_PARAM_RETRY_SHORT)
2490 rdev->wiphy.retry_short = retry_short;
2491 if (changed & WIPHY_PARAM_RETRY_LONG)
2492 rdev->wiphy.retry_long = retry_long;
2493 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2494 rdev->wiphy.frag_threshold = frag_threshold;
2495 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2496 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2497 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2498 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2499
e35e4d28 2500 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2501 if (result) {
2502 rdev->wiphy.retry_short = old_retry_short;
2503 rdev->wiphy.retry_long = old_retry_long;
2504 rdev->wiphy.frag_threshold = old_frag_threshold;
2505 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2506 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2507 return result;
b9a5f8ca
JM		 2508 }
2509 }
7f2b8562 2510 return 0;
55682965
JB		 2511}
2512
71bbc994
JB		 2513static inline u64 wdev_id(struct wireless_dev *wdev)
2514{
2515 return (u64)wdev->identifier |
f26cbf40 2516 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2517}
55682965 2518
683b6d3b 2519static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2520 const struct cfg80211_chan_def *chandef)
683b6d3b 2521{
601555cd
JB		 2522 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2523 return -EINVAL;
3d9d1d66 2524
683b6d3b
JB		 2525 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2526 chandef->chan->center_freq))
2527 return -ENOBUFS;
3d9d1d66
JB		 2528 switch (chandef->width) {
2529 case NL80211_CHAN_WIDTH_20_NOHT:
2530 case NL80211_CHAN_WIDTH_20:
2531 case NL80211_CHAN_WIDTH_40:
2532 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2533 cfg80211_get_chandef_type(chandef)))
2534 return -ENOBUFS;
2535 break;
2536 default:
2537 break;
2538 }
2539 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2540 return -ENOBUFS;
2541 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2542 return -ENOBUFS;
2543 if (chandef->center_freq2 &&
2544 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2545 return -ENOBUFS;
2546 return 0;
2547}
2548
15e47304 2549static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2550 struct cfg80211_registered_device *rdev,
8f894be2 2551 struct wireless_dev *wdev, bool removal)
55682965 2552{
72fb2abc 2553 struct net_device *dev = wdev->netdev;
8f894be2 2554 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2555 void *hdr;
2556
8f894be2
TB		 2557 if (removal)
2558 cmd = NL80211_CMD_DEL_INTERFACE;
2559
2560 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2561 if (!hdr)
2562 return -1;
2563
72fb2abc
JB		 2564 if (dev &&
2565 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2566 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2567 goto nla_put_failure;
2568
2569 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2570 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2dad624e
ND		 2571 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2572 NL80211_ATTR_PAD) ||
98104fde 2573 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2574 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2575 rdev->devlist_generation ^
2576 (cfg80211_rdev_list_generation << 2)))
2577 goto nla_put_failure;
f5ea9120 2578
5b7ccaf3 2579 if (rdev->ops->get_channel) {
683b6d3b
JB		 2580 int ret;
2581 struct cfg80211_chan_def chandef;
2582
2583 ret = rdev_get_channel(rdev, wdev, &chandef);
2584 if (ret == 0) {
2585 if (nl80211_send_chandef(msg, &chandef))
2586 goto nla_put_failure;
2587 }
d91df0e3
PF		 2588 }
2589
d55d0d59
RM		 2590 if (rdev->ops->get_tx_power) {
2591 int dbm, ret;
2592
2593 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2594 if (ret == 0 &&
2595 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2596 DBM_TO_MBM(dbm)))
2597 goto nla_put_failure;
2598 }
2599
b84e7a05
AQ		 2600 if (wdev->ssid_len) {
2601 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2602 goto nla_put_failure;
2603 }
2604
053c095a
JB		 2605 genlmsg_end(msg, hdr);
2606 return 0;
55682965
JB		 2607
2608 nla_put_failure:
bc3ed28c
TG		 2609 genlmsg_cancel(msg, hdr);
2610 return -EMSGSIZE;
55682965
JB		 2611}
2612
2613static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2614{
2615 int wp_idx = 0;
2616 int if_idx = 0;
2617 int wp_start = cb->args[0];
2618 int if_start = cb->args[1];
b7fb44da 2619 int filter_wiphy = -1;
f5ea9120 2620 struct cfg80211_registered_device *rdev;
55682965 2621 struct wireless_dev *wdev;
ea90e0dc 2622 int ret;
55682965 2623
5fe231e8 2624 rtnl_lock();
b7fb44da
DK		 2625 if (!cb->args[2]) {
2626 struct nl80211_dump_wiphy_state state = {
2627 .filter_wiphy = -1,
2628 };
b7fb44da
DK		 2629
2630 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2631 if (ret)
ea90e0dc 2632 goto out_unlock;
b7fb44da
DK		 2633
2634 filter_wiphy = state.filter_wiphy;
2635
2636 /*
2637 * if filtering, set cb->args[2] to +1 since 0 is the default
2638 * value needed to determine that parsing is necessary.
2639 */
2640 if (filter_wiphy >= 0)
2641 cb->args[2] = filter_wiphy + 1;
2642 else
2643 cb->args[2] = -1;
2644 } else if (cb->args[2] > 0) {
2645 filter_wiphy = cb->args[2] - 1;
2646 }
2647
f5ea9120
JB		 2648 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2649 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2650 continue;
bba95fef
JB		 2651 if (wp_idx < wp_start) {
2652 wp_idx++;
55682965 2653 continue;
bba95fef 2654 }
b7fb44da
DK		 2655
2656 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2657 continue;
2658
55682965
JB		 2659 if_idx = 0;
2660
53873f13 2661 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
bba95fef
JB		 2662 if (if_idx < if_start) {
2663 if_idx++;
55682965 2664 continue;
bba95fef 2665 }
15e47304 2666 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2667 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2668 rdev, wdev, false) < 0) {
bba95fef
JB		 2669 goto out;
2670 }
2671 if_idx++;
55682965 2672 }
bba95fef
JB		 2673
2674 wp_idx++;
55682965 2675 }
bba95fef 2676 out:
55682965
JB		 2677 cb->args[0] = wp_idx;
2678 cb->args[1] = if_idx;
2679
ea90e0dc
JB		 2680 ret = skb->len;
2681 out_unlock:
2682 rtnl_unlock();
2683
2684 return ret;
55682965
JB		 2685}
2686
2687static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2688{
2689 struct sk_buff *msg;
1b8ec87a 2690 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2691 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2692
fd2120ca 2693 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2694 if (!msg)
4c476991 2695 return -ENOMEM;
55682965 2696
15e47304 2697 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2698 rdev, wdev, false) < 0) {
4c476991
JB		 2699 nlmsg_free(msg);
2700 return -ENOBUFS;
2701 }
55682965 2702
134e6375 2703 return genlmsg_reply(msg, info);
55682965
JB		 2704}
2705
66f7ac50
MW		 2706static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2707 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2708 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2709 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2710 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2711 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2712 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2713};
2714
2715static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2716{
2717 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2718 int flag;
2719
2720 *mntrflags = 0;
2721
2722 if (!nla)
2723 return -EINVAL;
2724
fceb6435
JB		 2725 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, nla,
2726 mntr_flags_policy, NULL))
66f7ac50
MW		 2727 return -EINVAL;
2728
2729 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2730 if (flags[flag])
2731 *mntrflags |= (1<<flag);
2732
818a986e
JB		 2733 *mntrflags |= MONITOR_FLAG_CHANGED;
2734
66f7ac50
MW		 2735 return 0;
2736}
2737
1db77596
JB		 2738static int nl80211_parse_mon_options(struct cfg80211_registered_device *rdev,
2739 enum nl80211_iftype type,
2740 struct genl_info *info,
2741 struct vif_params *params)
2742{
2743 bool change = false;
2744 int err;
2745
2746 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2747 if (type != NL80211_IFTYPE_MONITOR)
2748 return -EINVAL;
2749
2750 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2751 &params->flags);
2752 if (err)
2753 return err;
2754
2755 change = true;
2756 }
2757
2758 if (params->flags & MONITOR_FLAG_ACTIVE &&
2759 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2760 return -EOPNOTSUPP;
2761
2762 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2763 const u8 *mumimo_groups;
2764 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2765
2766 if (type != NL80211_IFTYPE_MONITOR)
2767 return -EINVAL;
2768
2769 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2770 return -EOPNOTSUPP;
2771
2772 mumimo_groups =
2773 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2774
2775 /* bits 0 and 63 are reserved and must be zero */
4954601f
JB		 2776 if ((mumimo_groups[0] & BIT(0)) ||
2777 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(7)))
1db77596
JB		 2778 return -EINVAL;
2779
2780 params->vht_mumimo_groups = mumimo_groups;
2781 change = true;
2782 }
2783
2784 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2785 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2786
2787 if (type != NL80211_IFTYPE_MONITOR)
2788 return -EINVAL;
2789
2790 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2791 return -EOPNOTSUPP;
2792
2793 params->vht_mumimo_follow_addr =
2794 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]);
2795 change = true;
2796 }
2797
2798 return change ? 1 : 0;
2799}
2800
9bc383de 2801static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2802 struct net_device *netdev, u8 use_4addr,
2803 enum nl80211_iftype iftype)
9bc383de 2804{
ad4bb6f8 2805 if (!use_4addr) {
f350a0a8 2806 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2807 return -EBUSY;
9bc383de 2808 return 0;
ad4bb6f8 2809 }
9bc383de
JB		 2810
2811 switch (iftype) {
2812 case NL80211_IFTYPE_AP_VLAN:
2813 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2814 return 0;
2815 break;
2816 case NL80211_IFTYPE_STATION:
2817 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2818 return 0;
2819 break;
2820 default:
2821 break;
2822 }
2823
2824 return -EOPNOTSUPP;
2825}
2826
55682965
JB		 2827static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2828{
4c476991 2829 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2830 struct vif_params params;
e36d56b6 2831 int err;
04a773ad 2832 enum nl80211_iftype otype, ntype;
4c476991 2833 struct net_device *dev = info->user_ptr[1];
ac7f9cfa 2834 bool change = false;
55682965 2835
2ec600d6
LCC		 2836 memset(&params, 0, sizeof(params));
2837
04a773ad 2838 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2839
723b038d 2840 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2841 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2842 if (otype != ntype)
ac7f9cfa 2843 change = true;
4c476991
JB		 2844 if (ntype > NL80211_IFTYPE_MAX)
2845 return -EINVAL;
723b038d
JB		 2846 }
2847
92ffe055 2848 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2849 struct wireless_dev *wdev = dev->ieee80211_ptr;
2850
4c476991
JB		 2851 if (ntype != NL80211_IFTYPE_MESH_POINT)
2852 return -EINVAL;
29cbe68c
JB		 2853 if (netif_running(dev))
2854 return -EBUSY;
2855
2856 wdev_lock(wdev);
2857 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2858 IEEE80211_MAX_MESH_ID_LEN);
2859 wdev->mesh_id_up_len =
2860 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2861 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2862 wdev->mesh_id_up_len);
2863 wdev_unlock(wdev);
2ec600d6
LCC		 2864 }
2865
8b787643
FF		 2866 if (info->attrs[NL80211_ATTR_4ADDR]) {
2867 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2868 change = true;
ad4bb6f8 2869 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2870 if (err)
4c476991 2871 return err;
8b787643
FF		 2872 } else {
2873 params.use_4addr = -1;
2874 }
2875
1db77596
JB		 2876 err = nl80211_parse_mon_options(rdev, ntype, info, &params);
2877 if (err < 0)
2878 return err;
2879 if (err > 0)
c6e6a0c8 2880 change = true;
e057d3c3 2881
ac7f9cfa 2882 if (change)
818a986e 2883 err = cfg80211_change_iface(rdev, dev, ntype, &params);
ac7f9cfa
JB		 2884 else
2885 err = 0;
60719ffd 2886
9bc383de
JB		 2887 if (!err && params.use_4addr != -1)
2888 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2889
55682965
JB		 2890 return err;
2891}
2892
2893static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2894{
4c476991 2895 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2896 struct vif_params params;
84efbb84 2897 struct wireless_dev *wdev;
896ff063 2898 struct sk_buff *msg;
55682965
JB		 2899 int err;
2900 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2901
78f22b6a
JB		 2902 /* to avoid failing a new interface creation due to pending removal */
2903 cfg80211_destroy_ifaces(rdev);
2904
2ec600d6
LCC		 2905 memset(&params, 0, sizeof(params));
2906
55682965
JB		 2907 if (!info->attrs[NL80211_ATTR_IFNAME])
2908 return -EINVAL;
2909
2910 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2911 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2912 if (type > NL80211_IFTYPE_MAX)
2913 return -EINVAL;
2914 }
2915
79c97e97 2916 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2917 !(rdev->wiphy.interface_modes & (1 << type)))
2918 return -EOPNOTSUPP;
55682965 2919
cb3b7d87 2920 if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
e8f479b1
BG		 2921 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2922 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2923 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2924 ETH_ALEN);
2925 if (!is_valid_ether_addr(params.macaddr))
2926 return -EADDRNOTAVAIL;
2927 }
2928
9bc383de 2929 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2930 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2931 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2932 if (err)
4c476991 2933 return err;
9bc383de 2934 }
8b787643 2935
1db77596
JB		 2936 err = nl80211_parse_mon_options(rdev, type, info, &params);
2937 if (err < 0)
2938 return err;
e057d3c3 2939
a18c7192
JB		 2940 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2941 if (!msg)
2942 return -ENOMEM;
2943
e35e4d28
HG		 2944 wdev = rdev_add_virtual_intf(rdev,
2945 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
818a986e 2946 NET_NAME_USER, type, &params);
d687cbb7
RM		 2947 if (WARN_ON(!wdev)) {
2948 nlmsg_free(msg);
2949 return -EPROTO;
2950 } else if (IS_ERR(wdev)) {
1c90f9d4 2951 nlmsg_free(msg);
84efbb84 2952 return PTR_ERR(wdev);
1c90f9d4 2953 }
2ec600d6 2954
18e5ca65 2955 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2956 wdev->owner_nlportid = info->snd_portid;
2957
98104fde
JB		 2958 switch (type) {
2959 case NL80211_IFTYPE_MESH_POINT:
2960 if (!info->attrs[NL80211_ATTR_MESH_ID])
2961 break;
29cbe68c
JB		 2962 wdev_lock(wdev);
2963 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2964 IEEE80211_MAX_MESH_ID_LEN);
2965 wdev->mesh_id_up_len =
2966 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2967 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2968 wdev->mesh_id_up_len);
2969 wdev_unlock(wdev);
98104fde 2970 break;
cb3b7d87 2971 case NL80211_IFTYPE_NAN:
98104fde
JB		 2972 case NL80211_IFTYPE_P2P_DEVICE:
2973 /*
cb3b7d87 2974 * P2P Device and NAN do not have a netdev, so don't go
98104fde
JB		 2975 * through the netdev notifier and must be added here
2976 */
2977 mutex_init(&wdev->mtx);
2978 INIT_LIST_HEAD(&wdev->event_list);
2979 spin_lock_init(&wdev->event_lock);
2980 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2981 spin_lock_init(&wdev->mgmt_registrations_lock);
2982
98104fde 2983 wdev->identifier = ++rdev->wdev_id;
53873f13 2984 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
98104fde 2985 rdev->devlist_generation++;
98104fde
JB		 2986 break;
2987 default:
2988 break;
29cbe68c
JB		 2989 }
2990
15e47304 2991 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2992 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2993 nlmsg_free(msg);
2994 return -ENOBUFS;
2995 }
2996
896ff063
DK		 2997 /*
2998 * For wdevs which have no associated netdev object (e.g. of type
2999 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
3000 * For all other types, the event will be generated from the
3001 * netdev notifier
3002 */
3003 if (!wdev->netdev)
3004 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
8f894be2 3005
1c90f9d4 3006 return genlmsg_reply(msg, info);
55682965
JB		 3007}
3008
3009static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
3010{
4c476991 3011 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 3012 struct wireless_dev *wdev = info->user_ptr[1];
55682965 3013
4c476991
JB		 3014 if (!rdev->ops->del_virtual_intf)
3015 return -EOPNOTSUPP;
55682965 3016
84efbb84
JB		 3017 /*
3018 * If we remove a wireless device without a netdev then clear
3019 * user_ptr[1] so that nl80211_post_doit won't dereference it
3020 * to check if it needs to do dev_put(). Otherwise it crashes
3021 * since the wdev has been freed, unlike with a netdev where
3022 * we need the dev_put() for the netdev to really be freed.
3023 */
3024 if (!wdev->netdev)
3025 info->user_ptr[1] = NULL;
3026
7f8ed01e 3027 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 3028}
3029
1d9d9213
SW		 3030static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
3031{
3032 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3033 struct net_device *dev = info->user_ptr[1];
3034 u16 noack_map;
3035
3036 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
3037 return -EINVAL;
3038
3039 if (!rdev->ops->set_noack_map)
3040 return -EOPNOTSUPP;
3041
3042 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
3043
e35e4d28 3044 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 3045}
3046
41ade00f
JB		 3047struct get_key_cookie {
3048 struct sk_buff *msg;
3049 int error;
b9454e83 3050 int idx;
41ade00f
JB		 3051};
3052
3053static void get_key_callback(void *c, struct key_params *params)
3054{
b9454e83 3055 struct nlattr *key;
41ade00f
JB		 3056 struct get_key_cookie *cookie = c;
3057
9360ffd1
DM		 3058 if ((params->key &&
3059 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
3060 params->key_len, params->key)) ||
3061 (params->seq &&
3062 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
3063 params->seq_len, params->seq)) ||
3064 (params->cipher &&
3065 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
3066 params->cipher)))
3067 goto nla_put_failure;
41ade00f 3068
b9454e83
JB		 3069 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
3070 if (!key)
3071 goto nla_put_failure;
3072
9360ffd1
DM		 3073 if ((params->key &&
3074 nla_put(cookie->msg, NL80211_KEY_DATA,
3075 params->key_len, params->key)) ||
3076 (params->seq &&
3077 nla_put(cookie->msg, NL80211_KEY_SEQ,
3078 params->seq_len, params->seq)) ||
3079 (params->cipher &&
3080 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
3081 params->cipher)))
3082 goto nla_put_failure;
b9454e83 3083
9360ffd1
DM		 3084 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
3085 goto nla_put_failure;
b9454e83
JB		 3086
3087 nla_nest_end(cookie->msg, key);
3088
41ade00f
JB		 3089 return;
3090 nla_put_failure:
3091 cookie->error = 1;
3092}
3093
3094static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3095{
4c476991 3096 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3097 int err;
4c476991 3098 struct net_device *dev = info->user_ptr[1];
41ade00f 3099 u8 key_idx = 0;
e31b8213
JB		 3100 const u8 *mac_addr = NULL;
3101 bool pairwise;
41ade00f
JB		 3102 struct get_key_cookie cookie = {
3103 .error = 0,
3104 };
3105 void *hdr;
3106 struct sk_buff *msg;
3107
3108 if (info->attrs[NL80211_ATTR_KEY_IDX])
3109 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3110
3cfcf6ac 3111 if (key_idx > 5)
41ade00f
JB		 3112 return -EINVAL;
3113
3114 if (info->attrs[NL80211_ATTR_MAC])
3115 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3116
e31b8213
JB		 3117 pairwise = !!mac_addr;
3118 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3119 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
7a087e74 3120
e31b8213
JB		 3121 if (kt >= NUM_NL80211_KEYTYPES)
3122 return -EINVAL;
3123 if (kt != NL80211_KEYTYPE_GROUP &&
3124 kt != NL80211_KEYTYPE_PAIRWISE)
3125 return -EINVAL;
3126 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3127 }
3128
4c476991
JB		 3129 if (!rdev->ops->get_key)
3130 return -EOPNOTSUPP;
41ade00f 3131
0fa7b391
JB		 3132 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3133 return -ENOENT;
3134
fd2120ca 3135 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3136 if (!msg)
3137 return -ENOMEM;
41ade00f 3138
15e47304 3139 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 3140 NL80211_CMD_NEW_KEY);
cb35fba3 3141 if (!hdr)
9fe271af 3142 goto nla_put_failure;
41ade00f
JB		 3143
3144 cookie.msg = msg;
b9454e83 3145 cookie.idx = key_idx;
41ade00f 3146
9360ffd1
DM		 3147 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3148 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3149 goto nla_put_failure;
3150 if (mac_addr &&
3151 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3152 goto nla_put_failure;
41ade00f 3153
e35e4d28
HG		 3154 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3155 get_key_callback);
41ade00f
JB		 3156
3157 if (err)
6c95e2a2 3158 goto free_msg;
41ade00f
JB		 3159
3160 if (cookie.error)
3161 goto nla_put_failure;
3162
3163 genlmsg_end(msg, hdr);
4c476991 3164 return genlmsg_reply(msg, info);
41ade00f
JB		 3165
3166 nla_put_failure:
3167 err = -ENOBUFS;
6c95e2a2 3168 free_msg:
41ade00f 3169 nlmsg_free(msg);
41ade00f
JB		 3170 return err;
3171}
3172
3173static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3174{
4c476991 3175 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 3176 struct key_parse key;
41ade00f 3177 int err;
4c476991 3178 struct net_device *dev = info->user_ptr[1];
41ade00f 3179
b9454e83
JB		 3180 err = nl80211_parse_key(info, &key);
3181 if (err)
3182 return err;
41ade00f 3183
b9454e83 3184 if (key.idx < 0)
41ade00f
JB		 3185 return -EINVAL;
3186
b9454e83
JB		 3187 /* only support setting default key */
3188 if (!key.def && !key.defmgmt)
41ade00f
JB		 3189 return -EINVAL;
3190
dbd2fd65 3191 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 3192
dbd2fd65
JB		 3193 if (key.def) {
3194 if (!rdev->ops->set_default_key) {
3195 err = -EOPNOTSUPP;
3196 goto out;
3197 }
41ade00f 3198
dbd2fd65
JB		 3199 err = nl80211_key_allowed(dev->ieee80211_ptr);
3200 if (err)
3201 goto out;
3202
e35e4d28 3203 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 3204 key.def_uni, key.def_multi);
3205
3206 if (err)
3207 goto out;
fffd0934 3208
3d23e349 3209#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 3210 dev->ieee80211_ptr->wext.default_key = key.idx;
3211#endif
3212 } else {
3213 if (key.def_uni || !key.def_multi) {
3214 err = -EINVAL;
3215 goto out;
3216 }
3217
3218 if (!rdev->ops->set_default_mgmt_key) {
3219 err = -EOPNOTSUPP;
3220 goto out;
3221 }
3222
3223 err = nl80211_key_allowed(dev->ieee80211_ptr);
3224 if (err)
3225 goto out;
3226
e35e4d28 3227 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 3228 if (err)
3229 goto out;
3230
3231#ifdef CONFIG_CFG80211_WEXT
3232 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3233#endif
dbd2fd65
JB		 3234 }
3235
3236 out:
fffd0934 3237 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3238
41ade00f
JB		 3239 return err;
3240}
3241
3242static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3243{
4c476991 3244 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3245 int err;
4c476991 3246 struct net_device *dev = info->user_ptr[1];
b9454e83 3247 struct key_parse key;
e31b8213 3248 const u8 *mac_addr = NULL;
41ade00f 3249
b9454e83
JB		 3250 err = nl80211_parse_key(info, &key);
3251 if (err)
3252 return err;
41ade00f 3253
b9454e83 3254 if (!key.p.key)
41ade00f
JB		 3255 return -EINVAL;
3256
41ade00f
JB		 3257 if (info->attrs[NL80211_ATTR_MAC])
3258 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3259
e31b8213
JB		 3260 if (key.type == -1) {
3261 if (mac_addr)
3262 key.type = NL80211_KEYTYPE_PAIRWISE;
3263 else
3264 key.type = NL80211_KEYTYPE_GROUP;
3265 }
3266
3267 /* for now */
3268 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3269 key.type != NL80211_KEYTYPE_GROUP)
3270 return -EINVAL;
3271
4c476991
JB		 3272 if (!rdev->ops->add_key)
3273 return -EOPNOTSUPP;
25e47c18 3274
e31b8213
JB		 3275 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3276 key.type == NL80211_KEYTYPE_PAIRWISE,
3277 mac_addr))
4c476991 3278 return -EINVAL;
41ade00f 3279
fffd0934
JB		 3280 wdev_lock(dev->ieee80211_ptr);
3281 err = nl80211_key_allowed(dev->ieee80211_ptr);
3282 if (!err)
e35e4d28
HG		 3283 err = rdev_add_key(rdev, dev, key.idx,
3284 key.type == NL80211_KEYTYPE_PAIRWISE,
3285 mac_addr, &key.p);
fffd0934 3286 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3287
41ade00f
JB		 3288 return err;
3289}
3290
3291static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3292{
4c476991 3293 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3294 int err;
4c476991 3295 struct net_device *dev = info->user_ptr[1];
41ade00f 3296 u8 *mac_addr = NULL;
b9454e83 3297 struct key_parse key;
41ade00f 3298
b9454e83
JB		 3299 err = nl80211_parse_key(info, &key);
3300 if (err)
3301 return err;
41ade00f
JB		 3302
3303 if (info->attrs[NL80211_ATTR_MAC])
3304 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3305
e31b8213
JB		 3306 if (key.type == -1) {
3307 if (mac_addr)
3308 key.type = NL80211_KEYTYPE_PAIRWISE;
3309 else
3310 key.type = NL80211_KEYTYPE_GROUP;
3311 }
3312
3313 /* for now */
3314 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3315 key.type != NL80211_KEYTYPE_GROUP)
3316 return -EINVAL;
3317
4c476991
JB		 3318 if (!rdev->ops->del_key)
3319 return -EOPNOTSUPP;
41ade00f 3320
fffd0934
JB		 3321 wdev_lock(dev->ieee80211_ptr);
3322 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3323
0fa7b391 3324 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3325 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3326 err = -ENOENT;
3327
fffd0934 3328 if (!err)
e35e4d28
HG		 3329 err = rdev_del_key(rdev, dev, key.idx,
3330 key.type == NL80211_KEYTYPE_PAIRWISE,
3331 mac_addr);
41ade00f 3332
3d23e349 3333#ifdef CONFIG_CFG80211_WEXT
08645126 3334 if (!err) {
b9454e83 3335 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3336 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3337 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3338 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3339 }
3340#endif
fffd0934 3341 wdev_unlock(dev->ieee80211_ptr);
08645126 3342
41ade00f
JB		 3343 return err;
3344}
3345
77765eaf
VT		 3346/* This function returns an error or the number of nested attributes */
3347static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3348{
3349 struct nlattr *attr;
3350 int n_entries = 0, tmp;
3351
3352 nla_for_each_nested(attr, nl_attr, tmp) {
3353 if (nla_len(attr) != ETH_ALEN)
3354 return -EINVAL;
3355
3356 n_entries++;
3357 }
3358
3359 return n_entries;
3360}
3361
3362/*
3363 * This function parses ACL information and allocates memory for ACL data.
3364 * On successful return, the calling function is responsible to free the
3365 * ACL buffer returned by this function.
3366 */
3367static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3368 struct genl_info *info)
3369{
3370 enum nl80211_acl_policy acl_policy;
3371 struct nlattr *attr;
3372 struct cfg80211_acl_data *acl;
3373 int i = 0, n_entries, tmp;
3374
3375 if (!wiphy->max_acl_mac_addrs)
3376 return ERR_PTR(-EOPNOTSUPP);
3377
3378 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3379 return ERR_PTR(-EINVAL);
3380
3381 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3382 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3383 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3384 return ERR_PTR(-EINVAL);
3385
3386 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3387 return ERR_PTR(-EINVAL);
3388
3389 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3390 if (n_entries < 0)
3391 return ERR_PTR(n_entries);
3392
3393 if (n_entries > wiphy->max_acl_mac_addrs)
3394 return ERR_PTR(-ENOTSUPP);
3395
3396 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3397 GFP_KERNEL);
3398 if (!acl)
3399 return ERR_PTR(-ENOMEM);
3400
3401 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3402 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3403 i++;
3404 }
3405
3406 acl->n_acl_entries = n_entries;
3407 acl->acl_policy = acl_policy;
3408
3409 return acl;
3410}
3411
3412static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3413{
3414 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3415 struct net_device *dev = info->user_ptr[1];
3416 struct cfg80211_acl_data *acl;
3417 int err;
3418
3419 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3420 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3421 return -EOPNOTSUPP;
3422
3423 if (!dev->ieee80211_ptr->beacon_interval)
3424 return -EINVAL;
3425
3426 acl = parse_acl_data(&rdev->wiphy, info);
3427 if (IS_ERR(acl))
3428 return PTR_ERR(acl);
3429
3430 err = rdev_set_mac_acl(rdev, dev, acl);
3431
3432 kfree(acl);
3433
3434 return err;
3435}
3436
a7c7fbff
PK		 3437static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
3438 u8 *rates, u8 rates_len)
3439{
3440 u8 i;
3441 u32 mask = 0;
3442
3443 for (i = 0; i < rates_len; i++) {
3444 int rate = (rates[i] & 0x7f) * 5;
3445 int ridx;
3446
3447 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
3448 struct ieee80211_rate *srate =
3449 &sband->bitrates[ridx];
3450 if (rate == srate->bitrate) {
3451 mask |= 1 << ridx;
3452 break;
3453 }
3454 }
3455 if (ridx == sband->n_bitrates)
3456 return 0; /* rate not found */
3457 }
3458
3459 return mask;
3460}
3461
3462static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
3463 u8 *rates, u8 rates_len,
3464 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
3465{
3466 u8 i;
3467
3468 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
3469
3470 for (i = 0; i < rates_len; i++) {
3471 int ridx, rbit;
3472
3473 ridx = rates[i] / 8;
3474 rbit = BIT(rates[i] % 8);
3475
3476 /* check validity */
3477 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
3478 return false;
3479
3480 /* check availability */
3481 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
3482 mcs[ridx] |= rbit;
3483 else
3484 return false;
3485 }
3486
3487 return true;
3488}
3489
3490static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
3491{
3492 u16 mcs_mask = 0;
3493
3494 switch (vht_mcs_map) {
3495 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
3496 break;
3497 case IEEE80211_VHT_MCS_SUPPORT_0_7:
3498 mcs_mask = 0x00FF;
3499 break;
3500 case IEEE80211_VHT_MCS_SUPPORT_0_8:
3501 mcs_mask = 0x01FF;
3502 break;
3503 case IEEE80211_VHT_MCS_SUPPORT_0_9:
3504 mcs_mask = 0x03FF;
3505 break;
3506 default:
3507 break;
3508 }
3509
3510 return mcs_mask;
3511}
3512
3513static void vht_build_mcs_mask(u16 vht_mcs_map,
3514 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
3515{
3516 u8 nss;
3517
3518 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
3519 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
3520 vht_mcs_map >>= 2;
3521 }
3522}
3523
3524static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
3525 struct nl80211_txrate_vht *txrate,
3526 u16 mcs[NL80211_VHT_NSS_MAX])
3527{
3528 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3529 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
3530 u8 i;
3531
3532 if (!sband->vht_cap.vht_supported)
3533 return false;
3534
3535 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
3536
3537 /* Build vht_mcs_mask from VHT capabilities */
3538 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
3539
3540 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3541 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
3542 mcs[i] = txrate->mcs[i];
3543 else
3544 return false;
3545 }
3546
3547 return true;
3548}
3549
3550static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
3551 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
3552 .len = NL80211_MAX_SUPP_RATES },
3553 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
3554 .len = NL80211_MAX_SUPP_HT_RATES },
3555 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
3556 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
3557};
3558
3559static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
3560 struct cfg80211_bitrate_mask *mask)
3561{
3562 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
3563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3564 int rem, i;
3565 struct nlattr *tx_rates;
3566 struct ieee80211_supported_band *sband;
3567 u16 vht_tx_mcs_map;
3568
3569 memset(mask, 0, sizeof(*mask));
3570 /* Default to all rates enabled */
3571 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3572 sband = rdev->wiphy.bands[i];
3573
3574 if (!sband)
3575 continue;
3576
3577 mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
3578 memcpy(mask->control[i].ht_mcs,
3579 sband->ht_cap.mcs.rx_mask,
3580 sizeof(mask->control[i].ht_mcs));
3581
3582 if (!sband->vht_cap.vht_supported)
3583 continue;
3584
3585 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3586 vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
3587 }
3588
3589 /* if no rates are given set it back to the defaults */
3590 if (!info->attrs[NL80211_ATTR_TX_RATES])
3591 goto out;
3592
3593 /* The nested attribute uses enum nl80211_band as the index. This maps
3594 * directly to the enum nl80211_band values used in cfg80211.
3595 */
3596 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
3597 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
3598 enum nl80211_band band = nla_type(tx_rates);
3599 int err;
3600
3601 if (band < 0 || band >= NUM_NL80211_BANDS)
3602 return -EINVAL;
3603 sband = rdev->wiphy.bands[band];
3604 if (sband == NULL)
3605 return -EINVAL;
bfe2c7b1 3606 err = nla_parse_nested(tb, NL80211_TXRATE_MAX, tx_rates,
fe52145f 3607 nl80211_txattr_policy, info->extack);
a7c7fbff
PK		 3608 if (err)
3609 return err;
3610 if (tb[NL80211_TXRATE_LEGACY]) {
3611 mask->control[band].legacy = rateset_to_mask(
3612 sband,
3613 nla_data(tb[NL80211_TXRATE_LEGACY]),
3614 nla_len(tb[NL80211_TXRATE_LEGACY]));
3615 if ((mask->control[band].legacy == 0) &&
3616 nla_len(tb[NL80211_TXRATE_LEGACY]))
3617 return -EINVAL;
3618 }
3619 if (tb[NL80211_TXRATE_HT]) {
3620 if (!ht_rateset_to_mask(
3621 sband,
3622 nla_data(tb[NL80211_TXRATE_HT]),
3623 nla_len(tb[NL80211_TXRATE_HT]),
3624 mask->control[band].ht_mcs))
3625 return -EINVAL;
3626 }
3627 if (tb[NL80211_TXRATE_VHT]) {
3628 if (!vht_set_mcs_mask(
3629 sband,
3630 nla_data(tb[NL80211_TXRATE_VHT]),
3631 mask->control[band].vht_mcs))
3632 return -EINVAL;
3633 }
3634 if (tb[NL80211_TXRATE_GI]) {
3635 mask->control[band].gi =
3636 nla_get_u8(tb[NL80211_TXRATE_GI]);
3637 if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
3638 return -EINVAL;
3639 }
3640
3641 if (mask->control[band].legacy == 0) {
3642 /* don't allow empty legacy rates if HT or VHT
3643 * are not even supported.
3644 */
3645 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
3646 rdev->wiphy.bands[band]->vht_cap.vht_supported))
3647 return -EINVAL;
3648
3649 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
3650 if (mask->control[band].ht_mcs[i])
3651 goto out;
3652
3653 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
3654 if (mask->control[band].vht_mcs[i])
3655 goto out;
3656
3657 /* legacy and mcs rates may not be both empty */
3658 return -EINVAL;
3659 }
3660 }
3661
3662out:
3663 return 0;
3664}
3665
8564e382
JB		 3666static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
3667 enum nl80211_band band,
3668 struct cfg80211_bitrate_mask *beacon_rate)
a7c7fbff 3669{
8564e382
JB		 3670 u32 count_ht, count_vht, i;
3671 u32 rate = beacon_rate->control[band].legacy;
a7c7fbff
PK		 3672
3673 /* Allow only one rate */
3674 if (hweight32(rate) > 1)
3675 return -EINVAL;
3676
3677 count_ht = 0;
3678 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
8564e382 3679 if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
a7c7fbff 3680 return -EINVAL;
8564e382 3681 } else if (beacon_rate->control[band].ht_mcs[i]) {
a7c7fbff
PK		 3682 count_ht++;
3683 if (count_ht > 1)
3684 return -EINVAL;
3685 }
3686 if (count_ht && rate)
3687 return -EINVAL;
3688 }
3689
3690 count_vht = 0;
3691 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8564e382 3692 if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
a7c7fbff 3693 return -EINVAL;
8564e382 3694 } else if (beacon_rate->control[band].vht_mcs[i]) {
a7c7fbff
PK		 3695 count_vht++;
3696 if (count_vht > 1)
3697 return -EINVAL;
3698 }
3699 if (count_vht && rate)
3700 return -EINVAL;
3701 }
3702
3703 if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
3704 return -EINVAL;
3705
8564e382
JB		 3706 if (rate &&
3707 !wiphy_ext_feature_isset(&rdev->wiphy,
3708 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
3709 return -EINVAL;
3710 if (count_ht &&
3711 !wiphy_ext_feature_isset(&rdev->wiphy,
3712 NL80211_EXT_FEATURE_BEACON_RATE_HT))
3713 return -EINVAL;
3714 if (count_vht &&
3715 !wiphy_ext_feature_isset(&rdev->wiphy,
3716 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
3717 return -EINVAL;
3718
a7c7fbff
PK		 3719 return 0;
3720}
3721
a1193be8 3722static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3723 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3724{
8860020e 3725 bool haveinfo = false;
ed1b6cc7 3726
a1193be8
SW		 3727 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3728 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3729 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3730 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3731 return -EINVAL;
3732
8860020e 3733 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3734
a1193be8
SW		 3735 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3736 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3737 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3738 if (!bcn->head_len)
3739 return -EINVAL;
3740 haveinfo = true;
ed1b6cc7
JB		 3741 }
3742
a1193be8
SW		 3743 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3744 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3745 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3746 haveinfo = true;
ed1b6cc7
JB		 3747 }
3748
4c476991
JB		 3749 if (!haveinfo)
3750 return -EINVAL;
3b85875a 3751
a1193be8
SW		 3752 if (attrs[NL80211_ATTR_IE]) {
3753 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3754 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3755 }
3756
a1193be8 3757 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3758 bcn->proberesp_ies =
a1193be8 3759 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3760 bcn->proberesp_ies_len =
a1193be8 3761 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3762 }
3763
a1193be8 3764 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3765 bcn->assocresp_ies =
a1193be8 3766 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3767 bcn->assocresp_ies_len =
a1193be8 3768 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3769 }
3770
a1193be8
SW		 3771 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3772 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3773 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3774 }
3775
8860020e
JB		 3776 return 0;
3777}
3778
66cd794e
JB		 3779static void nl80211_check_ap_rate_selectors(struct cfg80211_ap_settings *params,
3780 const u8 *rates)
3781{
3782 int i;
3783
3784 if (!rates)
3785 return;
3786
3787 for (i = 0; i < rates[1]; i++) {
3788 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_HT_PHY)
3789 params->ht_required = true;
3790 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_VHT_PHY)
3791 params->vht_required = true;
3792 }
3793}
3794
3795/*
3796 * Since the nl80211 API didn't include, from the beginning, attributes about
3797 * HT/VHT requirements/capabilities, we parse them out of the IEs for the
3798 * benefit of drivers that rebuild IEs in the firmware.
3799 */
3800static void nl80211_calculate_ap_params(struct cfg80211_ap_settings *params)
3801{
3802 const struct cfg80211_beacon_data *bcn = &params->beacon;
ba83bfb1
IM		 3803 size_t ies_len = bcn->tail_len;
3804 const u8 *ies = bcn->tail;
66cd794e
JB		 3805 const u8 *rates;
3806 const u8 *cap;
3807
3808 rates = cfg80211_find_ie(WLAN_EID_SUPP_RATES, ies, ies_len);
3809 nl80211_check_ap_rate_selectors(params, rates);
3810
3811 rates = cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES, ies, ies_len);
3812 nl80211_check_ap_rate_selectors(params, rates);
3813
3814 cap = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, ies_len);
3815 if (cap && cap[1] >= sizeof(*params->ht_cap))
3816 params->ht_cap = (void *)(cap + 2);
3817 cap = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, ies, ies_len);
3818 if (cap && cap[1] >= sizeof(*params->vht_cap))
3819 params->vht_cap = (void *)(cap + 2);
3820}
3821
46c1dd0c
FF		 3822static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3823 struct cfg80211_ap_settings *params)
3824{
3825 struct wireless_dev *wdev;
3826 bool ret = false;
3827
53873f13 3828 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
46c1dd0c
FF		 3829 if (wdev->iftype != NL80211_IFTYPE_AP &&
3830 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3831 continue;
3832
683b6d3b 3833 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3834 continue;
3835
683b6d3b 3836 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3837 ret = true;
3838 break;
3839 }
3840
46c1dd0c
FF		 3841 return ret;
3842}
3843
e39e5b5e
JM		 3844static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3845 enum nl80211_auth_type auth_type,
3846 enum nl80211_commands cmd)
3847{
3848 if (auth_type > NL80211_AUTHTYPE_MAX)
3849 return false;
3850
3851 switch (cmd) {
3852 case NL80211_CMD_AUTHENTICATE:
3853 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3854 auth_type == NL80211_AUTHTYPE_SAE)
3855 return false;
63181060
JM		 3856 if (!wiphy_ext_feature_isset(&rdev->wiphy,
3857 NL80211_EXT_FEATURE_FILS_STA) &&
3858 (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3859 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3860 auth_type == NL80211_AUTHTYPE_FILS_PK))
3861 return false;
e39e5b5e
JM		 3862 return true;
3863 case NL80211_CMD_CONNECT:
a3caf744
VK		 3864 /* SAE not supported yet */
3865 if (auth_type == NL80211_AUTHTYPE_SAE)
3866 return false;
3867 /* FILS with SK PFS or PK not supported yet */
3868 if (auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3869 auth_type == NL80211_AUTHTYPE_FILS_PK)
3870 return false;
3871 if (!wiphy_ext_feature_isset(
3872 &rdev->wiphy,
3873 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
3874 auth_type == NL80211_AUTHTYPE_FILS_SK)
3875 return false;
3876 return true;
e39e5b5e
JM		 3877 case NL80211_CMD_START_AP:
3878 /* SAE not supported yet */
3879 if (auth_type == NL80211_AUTHTYPE_SAE)
3880 return false;
63181060
JM		 3881 /* FILS not supported yet */
3882 if (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3883 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3884 auth_type == NL80211_AUTHTYPE_FILS_PK)
3885 return false;
e39e5b5e
JM		 3886 return true;
3887 default:
3888 return false;
3889 }
3890}
3891
8860020e
JB		 3892static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3893{
3894 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3895 struct net_device *dev = info->user_ptr[1];
3896 struct wireless_dev *wdev = dev->ieee80211_ptr;
3897 struct cfg80211_ap_settings params;
3898 int err;
3899
3900 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3901 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3902 return -EOPNOTSUPP;
3903
3904 if (!rdev->ops->start_ap)
3905 return -EOPNOTSUPP;
3906
3907 if (wdev->beacon_interval)
3908 return -EALREADY;
3909
3910 memset(&params, 0, sizeof(params));
3911
3912 /* these are required for START_AP */
3913 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3914 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3915 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3916 return -EINVAL;
3917
a1193be8 3918 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3919 if (err)
3920 return err;
3921
3922 params.beacon_interval =
3923 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3924 params.dtim_period =
3925 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3926
0c317a02
PK		 3927 err = cfg80211_validate_beacon_int(rdev, dev->ieee80211_ptr->iftype,
3928 params.beacon_interval);
8860020e
JB		 3929 if (err)
3930 return err;
3931
3932 /*
3933 * In theory, some of these attributes should be required here
3934 * but since they were not used when the command was originally
3935 * added, keep them optional for old user space programs to let
3936 * them continue to work with drivers that do not need the
3937 * additional information -- drivers must check!
3938 */
3939 if (info->attrs[NL80211_ATTR_SSID]) {
3940 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3941 params.ssid_len =
3942 nla_len(info->attrs[NL80211_ATTR_SSID]);
3943 if (params.ssid_len == 0 ||
3944 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3945 return -EINVAL;
3946 }
3947
3948 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3949 params.hidden_ssid = nla_get_u32(
3950 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3951 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3952 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3953 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3954 return -EINVAL;
3955 }
3956
3957 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3958
3959 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3960 params.auth_type = nla_get_u32(
3961 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3962 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3963 NL80211_CMD_START_AP))
8860020e
JB		 3964 return -EINVAL;
3965 } else
3966 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3967
3968 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3969 NL80211_MAX_NR_CIPHER_SUITES);
3970 if (err)
3971 return err;
3972
1b658f11
VT		 3973 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3974 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3975 return -EOPNOTSUPP;
3976 params.inactivity_timeout = nla_get_u16(
3977 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3978 }
3979
53cabad7
JB		 3980 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3981 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3982 return -EINVAL;
3983 params.p2p_ctwindow =
3984 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3985 if (params.p2p_ctwindow > 127)
3986 return -EINVAL;
3987 if (params.p2p_ctwindow != 0 &&
3988 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3989 return -EINVAL;
3990 }
3991
3992 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3993 u8 tmp;
3994
3995 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3996 return -EINVAL;
3997 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3998 if (tmp > 1)
3999 return -EINVAL;
4000 params.p2p_opp_ps = tmp;
4001 if (params.p2p_opp_ps != 0 &&
4002 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4003 return -EINVAL;
4004 }
4005
aa430da4 4006 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 4007 err = nl80211_parse_chandef(rdev, info, &params.chandef);
4008 if (err)
4009 return err;
4010 } else if (wdev->preset_chandef.chan) {
4011 params.chandef = wdev->preset_chandef;
46c1dd0c 4012 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 4013 return -EINVAL;
4014
923b352f
AN		 4015 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
4016 wdev->iftype))
aa430da4
JB		 4017 return -EINVAL;
4018
a7c7fbff
PK		 4019 if (info->attrs[NL80211_ATTR_TX_RATES]) {
4020 err = nl80211_parse_tx_bitrate_mask(info, &params.beacon_rate);
4021 if (err)
4022 return err;
4023
8564e382
JB		 4024 err = validate_beacon_tx_rate(rdev, params.chandef.chan->band,
4025 &params.beacon_rate);
a7c7fbff
PK		 4026 if (err)
4027 return err;
4028 }
4029
18998c38
EP		 4030 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
4031 params.smps_mode =
4032 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
4033 switch (params.smps_mode) {
4034 case NL80211_SMPS_OFF:
4035 break;
4036 case NL80211_SMPS_STATIC:
4037 if (!(rdev->wiphy.features &
4038 NL80211_FEATURE_STATIC_SMPS))
4039 return -EINVAL;
4040 break;
4041 case NL80211_SMPS_DYNAMIC:
4042 if (!(rdev->wiphy.features &
4043 NL80211_FEATURE_DYNAMIC_SMPS))
4044 return -EINVAL;
4045 break;
4046 default:
4047 return -EINVAL;
4048 }
4049 } else {
4050 params.smps_mode = NL80211_SMPS_OFF;
4051 }
4052
6e8ef842
PK		 4053 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
4054 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
4055 return -EOPNOTSUPP;
4056
4baf6bea
OO		 4057 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
4058 params.acl = parse_acl_data(&rdev->wiphy, info);
4059 if (IS_ERR(params.acl))
4060 return PTR_ERR(params.acl);
4061 }
4062
66cd794e
JB		 4063 nl80211_calculate_ap_params(&params);
4064
c56589ed 4065 wdev_lock(wdev);
e35e4d28 4066 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 4067 if (!err) {
683b6d3b 4068 wdev->preset_chandef = params.chandef;
8860020e 4069 wdev->beacon_interval = params.beacon_interval;
9e0e2961 4070 wdev->chandef = params.chandef;
06e191e2
AQ		 4071 wdev->ssid_len = params.ssid_len;
4072 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 4073 }
c56589ed 4074 wdev_unlock(wdev);
77765eaf
VT		 4075
4076 kfree(params.acl);
4077
56d1893d 4078 return err;
ed1b6cc7
JB		 4079}
4080
8860020e
JB		 4081static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
4082{
4083 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4084 struct net_device *dev = info->user_ptr[1];
4085 struct wireless_dev *wdev = dev->ieee80211_ptr;
4086 struct cfg80211_beacon_data params;
4087 int err;
4088
4089 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4090 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4091 return -EOPNOTSUPP;
4092
4093 if (!rdev->ops->change_beacon)
4094 return -EOPNOTSUPP;
4095
4096 if (!wdev->beacon_interval)
4097 return -EINVAL;
4098
a1193be8 4099 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 4100 if (err)
4101 return err;
4102
c56589ed
SW		 4103 wdev_lock(wdev);
4104 err = rdev_change_beacon(rdev, dev, &params);
4105 wdev_unlock(wdev);
4106
4107 return err;
8860020e
JB		 4108}
4109
4110static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 4111{
4c476991
JB		 4112 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4113 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 4114
7c8d5e03 4115 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 4116}
4117
5727ef1b
JB		 4118static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
4119 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
4120 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
4121 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 4122 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 4123 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 4124 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 4125};
4126
eccb8e8f 4127static int parse_station_flags(struct genl_info *info,
bdd3ae3d 4128 enum nl80211_iftype iftype,
eccb8e8f 4129 struct station_parameters *params)
5727ef1b
JB		 4130{
4131 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 4132 struct nlattr *nla;
5727ef1b
JB		 4133 int flag;
4134
eccb8e8f
JB		 4135 /*
4136 * Try parsing the new attribute first so userspace
4137 * can specify both for older kernels.
4138 */
4139 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
4140 if (nla) {
4141 struct nl80211_sta_flag_update *sta_flags;
4142
4143 sta_flags = nla_data(nla);
4144 params->sta_flags_mask = sta_flags->mask;
4145 params->sta_flags_set = sta_flags->set;
77ee7c89 4146 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 4147 if ((params->sta_flags_mask |
4148 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
4149 return -EINVAL;
4150 return 0;
4151 }
4152
4153 /* if present, parse the old attribute */
5727ef1b 4154
eccb8e8f 4155 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 4156 if (!nla)
4157 return 0;
4158
fceb6435 4159 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, nla,
fe52145f 4160 sta_flags_policy, info->extack))
5727ef1b
JB		 4161 return -EINVAL;
4162
bdd3ae3d
JB		 4163 /*
4164 * Only allow certain flags for interface types so that
4165 * other attributes are silently ignored. Remember that
4166 * this is backward compatibility code with old userspace
4167 * and shouldn't be hit in other cases anyway.
4168 */
4169 switch (iftype) {
4170 case NL80211_IFTYPE_AP:
4171 case NL80211_IFTYPE_AP_VLAN:
4172 case NL80211_IFTYPE_P2P_GO:
4173 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4174 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4175 BIT(NL80211_STA_FLAG_WME) |
4176 BIT(NL80211_STA_FLAG_MFP);
4177 break;
4178 case NL80211_IFTYPE_P2P_CLIENT:
4179 case NL80211_IFTYPE_STATION:
4180 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4181 BIT(NL80211_STA_FLAG_TDLS_PEER);
4182 break;
4183 case NL80211_IFTYPE_MESH_POINT:
4184 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4185 BIT(NL80211_STA_FLAG_MFP) |
4186 BIT(NL80211_STA_FLAG_AUTHORIZED);
4187 default:
4188 return -EINVAL;
4189 }
5727ef1b 4190
3383b5a6
JB		 4191 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
4192 if (flags[flag]) {
eccb8e8f 4193 params->sta_flags_set |= (1<<flag);
5727ef1b 4194
3383b5a6
JB		 4195 /* no longer support new API additions in old API */
4196 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
4197 return -EINVAL;
4198 }
4199 }
4200
5727ef1b
JB		 4201 return 0;
4202}
4203
c8dcfd8a
FF		 4204static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
4205 int attr)
4206{
4207 struct nlattr *rate;
8eb41c8d
VK		 4208 u32 bitrate;
4209 u16 bitrate_compat;
bbf67e45 4210 enum nl80211_rate_info rate_flg;
c8dcfd8a
FF		 4211
4212 rate = nla_nest_start(msg, attr);
4213 if (!rate)
db9c64cf 4214 return false;
c8dcfd8a
FF		 4215
4216 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
4217 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 4218 /* report 16-bit bitrate only if we can */
4219 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 4220 if (bitrate > 0 &&
4221 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
4222 return false;
4223 if (bitrate_compat > 0 &&
4224 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
4225 return false;
4226
b51f3bee
JB		 4227 switch (info->bw) {
4228 case RATE_INFO_BW_5:
4229 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
4230 break;
4231 case RATE_INFO_BW_10:
4232 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
4233 break;
4234 default:
4235 WARN_ON(1);
4236 /* fall through */
4237 case RATE_INFO_BW_20:
4238 rate_flg = 0;
4239 break;
4240 case RATE_INFO_BW_40:
4241 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
4242 break;
4243 case RATE_INFO_BW_80:
4244 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
4245 break;
4246 case RATE_INFO_BW_160:
4247 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
4248 break;
4249 }
4250
4251 if (rate_flg && nla_put_flag(msg, rate_flg))
4252 return false;
4253
db9c64cf
JB		 4254 if (info->flags & RATE_INFO_FLAGS_MCS) {
4255 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
4256 return false;
db9c64cf
JB		 4257 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4258 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4259 return false;
4260 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
4261 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
4262 return false;
4263 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
4264 return false;
db9c64cf
JB		 4265 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4266 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4267 return false;
4268 }
c8dcfd8a
FF		 4269
4270 nla_nest_end(msg, rate);
4271 return true;
c8dcfd8a
FF		 4272}
4273
119363c7
FF		 4274static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
4275 int id)
4276{
4277 void *attr;
4278 int i = 0;
4279
4280 if (!mask)
4281 return true;
4282
4283 attr = nla_nest_start(msg, id);
4284 if (!attr)
4285 return false;
4286
4287 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
4288 if (!(mask & BIT(i)))
4289 continue;
4290
4291 if (nla_put_u8(msg, i, signal[i]))
4292 return false;
4293 }
4294
4295 nla_nest_end(msg, attr);
4296
4297 return true;
4298}
4299
cf5ead82
JB		 4300static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
4301 u32 seq, int flags,
66266b3a
JL		 4302 struct cfg80211_registered_device *rdev,
4303 struct net_device *dev,
98b62183 4304 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 4305{
4306 void *hdr;
f4263c98 4307 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 4308
cf5ead82 4309 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 4310 if (!hdr)
4311 return -1;
4312
9360ffd1
DM		 4313 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4314 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
4315 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
4316 goto nla_put_failure;
f5ea9120 4317
2ec600d6
LCC		 4318 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
4319 if (!sinfoattr)
fd5b74dc 4320 goto nla_put_failure;
319090bf
JB		 4321
4322#define PUT_SINFO(attr, memb, type) do { \
d686b920 4323 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
739960f1 4324 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
319090bf
JB		 4325 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
4326 sinfo->memb)) \
4327 goto nla_put_failure; \
4328 } while (0)
d686b920
JB		 4329#define PUT_SINFO_U64(attr, memb) do { \
4330 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4331 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
4332 sinfo->memb, NL80211_STA_INFO_PAD)) \
4333 goto nla_put_failure; \
4334 } while (0)
319090bf
JB		 4335
4336 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
4337 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
4338
4339 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
4340 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 4341 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 4342 (u32)sinfo->rx_bytes))
9360ffd1 4343 goto nla_put_failure;
319090bf
JB		 4344
4345 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
4346 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 4347 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 4348 (u32)sinfo->tx_bytes))
4349 goto nla_put_failure;
319090bf 4350
d686b920
JB		 4351 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
4352 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
319090bf
JB		 4353 PUT_SINFO(LLID, llid, u16);
4354 PUT_SINFO(PLID, plid, u16);
4355 PUT_SINFO(PLINK_STATE, plink_state, u8);
d686b920 4356 PUT_SINFO_U64(RX_DURATION, rx_duration);
319090bf 4357
66266b3a
JL		 4358 switch (rdev->wiphy.signal_type) {
4359 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 4360 PUT_SINFO(SIGNAL, signal, u8);
4361 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 4362 break;
4363 default:
4364 break;
4365 }
319090bf 4366 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 4367 if (!nl80211_put_signal(msg, sinfo->chains,
4368 sinfo->chain_signal,
4369 NL80211_STA_INFO_CHAIN_SIGNAL))
4370 goto nla_put_failure;
4371 }
319090bf 4372 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 4373 if (!nl80211_put_signal(msg, sinfo->chains,
4374 sinfo->chain_signal_avg,
4375 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
4376 goto nla_put_failure;
4377 }
319090bf 4378 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 4379 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
4380 NL80211_STA_INFO_TX_BITRATE))
4381 goto nla_put_failure;
4382 }
319090bf 4383 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 4384 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
4385 NL80211_STA_INFO_RX_BITRATE))
420e7fab 4386 goto nla_put_failure;
420e7fab 4387 }
319090bf
JB		 4388
4389 PUT_SINFO(RX_PACKETS, rx_packets, u32);
4390 PUT_SINFO(TX_PACKETS, tx_packets, u32);
4391 PUT_SINFO(TX_RETRIES, tx_retries, u32);
4392 PUT_SINFO(TX_FAILED, tx_failed, u32);
4393 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
4394 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
4395 PUT_SINFO(LOCAL_PM, local_pm, u32);
4396 PUT_SINFO(PEER_PM, peer_pm, u32);
4397 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
4398
4399 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 4400 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
4401 if (!bss_param)
4402 goto nla_put_failure;
4403
9360ffd1
DM		 4404 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
4405 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
4406 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
4407 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
4408 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
4409 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
4410 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
4411 sinfo->bss_param.dtim_period) ||
4412 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
4413 sinfo->bss_param.beacon_interval))
4414 goto nla_put_failure;
f4263c98
PS		 4415
4416 nla_nest_end(msg, bss_param);
4417 }
319090bf 4418 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 4419 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
4420 sizeof(struct nl80211_sta_flag_update),
4421 &sinfo->sta_flags))
4422 goto nla_put_failure;
319090bf 4423
d686b920
JB		 4424 PUT_SINFO_U64(T_OFFSET, t_offset);
4425 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
4426 PUT_SINFO_U64(BEACON_RX, rx_beacon);
a76b1942 4427 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 4428
4429#undef PUT_SINFO
d686b920 4430#undef PUT_SINFO_U64
6de39808
JB		 4431
4432 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
4433 struct nlattr *tidsattr;
4434 int tid;
4435
4436 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
4437 if (!tidsattr)
4438 goto nla_put_failure;
4439
4440 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
4441 struct cfg80211_tid_stats *tidstats;
4442 struct nlattr *tidattr;
4443
4444 tidstats = &sinfo->pertid[tid];
4445
4446 if (!tidstats->filled)
4447 continue;
4448
4449 tidattr = nla_nest_start(msg, tid + 1);
4450 if (!tidattr)
4451 goto nla_put_failure;
4452
d686b920 4453#define PUT_TIDVAL_U64(attr, memb) do { \
6de39808 4454 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
d686b920
JB		 4455 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
4456 tidstats->memb, NL80211_TID_STATS_PAD)) \
6de39808
JB		 4457 goto nla_put_failure; \
4458 } while (0)
4459
d686b920
JB		 4460 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4461 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4462 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4463 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
6de39808 4464
d686b920 4465#undef PUT_TIDVAL_U64
6de39808
JB		 4466 nla_nest_end(msg, tidattr);
4467 }
4468
4469 nla_nest_end(msg, tidsattr);
4470 }
4471
2ec600d6 4472 nla_nest_end(msg, sinfoattr);
fd5b74dc 4473
319090bf 4474 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 4475 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4476 sinfo->assoc_req_ies))
4477 goto nla_put_failure;
50d3dfb7 4478
053c095a
JB		 4479 genlmsg_end(msg, hdr);
4480 return 0;
fd5b74dc
JB		 4481
4482 nla_put_failure:
bc3ed28c
TG		 4483 genlmsg_cancel(msg, hdr);
4484 return -EMSGSIZE;
fd5b74dc
JB		 4485}
4486
2ec600d6 4487static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 4488 struct netlink_callback *cb)
2ec600d6 4489{
2ec600d6 4490 struct station_info sinfo;
1b8ec87a 4491 struct cfg80211_registered_device *rdev;
97990a06 4492 struct wireless_dev *wdev;
2ec600d6 4493 u8 mac_addr[ETH_ALEN];
97990a06 4494 int sta_idx = cb->args[2];
2ec600d6 4495 int err;
2ec600d6 4496
ea90e0dc 4497 rtnl_lock();
1b8ec87a 4498 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893 4499 if (err)
ea90e0dc 4500 goto out_err;
bba95fef 4501
97990a06
JB		 4502 if (!wdev->netdev) {
4503 err = -EINVAL;
4504 goto out_err;
4505 }
4506
1b8ec87a 4507 if (!rdev->ops->dump_station) {
eec60b03 4508 err = -EOPNOTSUPP;
bba95fef
JB		 4509 goto out_err;
4510 }
4511
bba95fef 4512 while (1) {
f612cedf 4513 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 4514 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 4515 mac_addr, &sinfo);
bba95fef
JB		 4516 if (err == -ENOENT)
4517 break;
4518 if (err)
3b85875a 4519 goto out_err;
bba95fef 4520
cf5ead82 4521 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 4522 NETLINK_CB(cb->skb).portid,
bba95fef 4523 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 4524 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 4525 &sinfo) < 0)
4526 goto out;
4527
4528 sta_idx++;
4529 }
4530
bba95fef 4531 out:
97990a06 4532 cb->args[2] = sta_idx;
bba95fef 4533 err = skb->len;
bba95fef 4534 out_err:
ea90e0dc 4535 rtnl_unlock();
bba95fef
JB		 4536
4537 return err;
2ec600d6 4538}
fd5b74dc 4539
5727ef1b
JB		 4540static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4541{
4c476991
JB		 4542 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4543 struct net_device *dev = info->user_ptr[1];
2ec600d6 4544 struct station_info sinfo;
fd5b74dc
JB		 4545 struct sk_buff *msg;
4546 u8 *mac_addr = NULL;
4c476991 4547 int err;
fd5b74dc 4548
2ec600d6 4549 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 4550
4551 if (!info->attrs[NL80211_ATTR_MAC])
4552 return -EINVAL;
4553
4554 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4555
4c476991
JB		 4556 if (!rdev->ops->get_station)
4557 return -EOPNOTSUPP;
3b85875a 4558
e35e4d28 4559 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 4560 if (err)
4c476991 4561 return err;
2ec600d6 4562
fd2120ca 4563 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 4564 if (!msg)
4c476991 4565 return -ENOMEM;
fd5b74dc 4566
cf5ead82
JB		 4567 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4568 info->snd_portid, info->snd_seq, 0,
66266b3a 4569 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 4570 nlmsg_free(msg);
4571 return -ENOBUFS;
4572 }
3b85875a 4573
4c476991 4574 return genlmsg_reply(msg, info);
5727ef1b
JB		 4575}
4576
77ee7c89
JB		 4577int cfg80211_check_station_change(struct wiphy *wiphy,
4578 struct station_parameters *params,
4579 enum cfg80211_station_type statype)
4580{
e4208427
AB		 4581 if (params->listen_interval != -1 &&
4582 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4583 return -EINVAL;
e4208427 4584
17b94247
AB		 4585 if (params->support_p2p_ps != -1 &&
4586 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4587 return -EINVAL;
4588
c72e1140 4589 if (params->aid &&
e4208427
AB		 4590 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4591 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4592 return -EINVAL;
4593
4594 /* When you run into this, adjust the code below for the new flag */
4595 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4596
4597 switch (statype) {
eef941e6
TP		 4598 case CFG80211_STA_MESH_PEER_KERNEL:
4599 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4600 /*
4601 * No ignoring the TDLS flag here -- the userspace mesh
4602 * code doesn't have the bug of including TDLS in the
4603 * mask everywhere.
4604 */
4605 if (params->sta_flags_mask &
4606 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4607 BIT(NL80211_STA_FLAG_MFP) |
4608 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4609 return -EINVAL;
4610 break;
4611 case CFG80211_STA_TDLS_PEER_SETUP:
4612 case CFG80211_STA_TDLS_PEER_ACTIVE:
4613 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4614 return -EINVAL;
4615 /* ignore since it can't change */
4616 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4617 break;
4618 default:
4619 /* disallow mesh-specific things */
4620 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4621 return -EINVAL;
4622 if (params->local_pm)
4623 return -EINVAL;
4624 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4625 return -EINVAL;
4626 }
4627
4628 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4629 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4630 /* TDLS can't be set, ... */
4631 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4632 return -EINVAL;
4633 /*
4634 * ... but don't bother the driver with it. This works around
4635 * a hostapd/wpa_supplicant issue -- it always includes the
4636 * TLDS_PEER flag in the mask even for AP mode.
4637 */
4638 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4639 }
4640
47edb11b
AB		 4641 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4642 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4643 /* reject other things that can't change */
4644 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4645 return -EINVAL;
4646 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4647 return -EINVAL;
4648 if (params->supported_rates)
4649 return -EINVAL;
4650 if (params->ext_capab || params->ht_capa || params->vht_capa)
4651 return -EINVAL;
4652 }
4653
47edb11b
AB		 4654 if (statype != CFG80211_STA_AP_CLIENT &&
4655 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4656 if (params->vlan)
4657 return -EINVAL;
4658 }
4659
4660 switch (statype) {
4661 case CFG80211_STA_AP_MLME_CLIENT:
4662 /* Use this only for authorizing/unauthorizing a station */
4663 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4664 return -EOPNOTSUPP;
4665 break;
4666 case CFG80211_STA_AP_CLIENT:
47edb11b 4667 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4668 /* accept only the listed bits */
4669 if (params->sta_flags_mask &
4670 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4671 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4672 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4673 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4674 BIT(NL80211_STA_FLAG_WME) |
4675 BIT(NL80211_STA_FLAG_MFP)))
4676 return -EINVAL;
4677
4678 /* but authenticated/associated only if driver handles it */
4679 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4680 params->sta_flags_mask &
4681 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4682 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4683 return -EINVAL;
4684 break;
4685 case CFG80211_STA_IBSS:
4686 case CFG80211_STA_AP_STA:
4687 /* reject any changes other than AUTHORIZED */
4688 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4689 return -EINVAL;
4690 break;
4691 case CFG80211_STA_TDLS_PEER_SETUP:
4692 /* reject any changes other than AUTHORIZED or WME */
4693 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4694 BIT(NL80211_STA_FLAG_WME)))
4695 return -EINVAL;
4696 /* force (at least) rates when authorizing */
4697 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4698 !params->supported_rates)
4699 return -EINVAL;
4700 break;
4701 case CFG80211_STA_TDLS_PEER_ACTIVE:
4702 /* reject any changes */
4703 return -EINVAL;
eef941e6 4704 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4705 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4706 return -EINVAL;
4707 break;
eef941e6 4708 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4709 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4710 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4711 return -EINVAL;
4712 break;
4713 }
4714
06f7c88c
BL		 4715 /*
4716 * Older kernel versions ignored this attribute entirely, so don't
4717 * reject attempts to update it but mark it as unused instead so the
4718 * driver won't look at the data.
4719 */
4720 if (statype != CFG80211_STA_AP_CLIENT_UNASSOC &&
4721 statype != CFG80211_STA_TDLS_PEER_SETUP)
4722 params->opmode_notif_used = false;
4723
77ee7c89
JB		 4724 return 0;
4725}
4726EXPORT_SYMBOL(cfg80211_check_station_change);
4727
5727ef1b 4728/*
c258d2de 4729 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4730 */
80b99899
JB		 4731static struct net_device *get_vlan(struct genl_info *info,
4732 struct cfg80211_registered_device *rdev)
5727ef1b 4733{
463d0183 4734 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4735 struct net_device *v;
4736 int ret;
4737
4738 if (!vlanattr)
4739 return NULL;
4740
4741 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4742 if (!v)
4743 return ERR_PTR(-ENODEV);
4744
4745 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4746 ret = -EINVAL;
4747 goto error;
5727ef1b 4748 }
80b99899 4749
77ee7c89
JB		 4750 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4751 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4752 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4753 ret = -EINVAL;
4754 goto error;
4755 }
4756
80b99899
JB		 4757 if (!netif_running(v)) {
4758 ret = -ENETDOWN;
4759 goto error;
4760 }
4761
4762 return v;
4763 error:
4764 dev_put(v);
4765 return ERR_PTR(ret);
5727ef1b
JB		 4766}
4767
94e860f1
JB		 4768static const struct nla_policy
4769nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4770 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4771 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4772};
4773
ff276691
JB		 4774static int nl80211_parse_sta_wme(struct genl_info *info,
4775 struct station_parameters *params)
df881293 4776{
df881293
JM		 4777 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4778 struct nlattr *nla;
4779 int err;
4780
df881293
JM		 4781 /* parse WME attributes if present */
4782 if (!info->attrs[NL80211_ATTR_STA_WME])
4783 return 0;
4784
4785 nla = info->attrs[NL80211_ATTR_STA_WME];
4786 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
fe52145f 4787 nl80211_sta_wme_policy, info->extack);
df881293
JM		 4788 if (err)
4789 return err;
4790
4791 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4792 params->uapsd_queues = nla_get_u8(
4793 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4794 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4795 return -EINVAL;
4796
4797 if (tb[NL80211_STA_WME_MAX_SP])
4798 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4799
4800 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4801 return -EINVAL;
4802
4803 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4804
4805 return 0;
4806}
4807
c01fc9ad
SD		 4808static int nl80211_parse_sta_channel_info(struct genl_info *info,
4809 struct station_parameters *params)
4810{
4811 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4812 params->supported_channels =
4813 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4814 params->supported_channels_len =
4815 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4816 /*
4817 * Need to include at least one (first channel, number of
4818 * channels) tuple for each subband, and must have proper
4819 * tuples for the rest of the data as well.
4820 */
4821 if (params->supported_channels_len < 2)
4822 return -EINVAL;
4823 if (params->supported_channels_len % 2)
4824 return -EINVAL;
4825 }
4826
4827 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4828 params->supported_oper_classes =
4829 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4830 params->supported_oper_classes_len =
4831 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4832 /*
4833 * The value of the Length field of the Supported Operating
4834 * Classes element is between 2 and 253.
4835 */
4836 if (params->supported_oper_classes_len < 2 ||
4837 params->supported_oper_classes_len > 253)
4838 return -EINVAL;
4839 }
4840 return 0;
4841}
4842
ff276691
JB		 4843static int nl80211_set_station_tdls(struct genl_info *info,
4844 struct station_parameters *params)
4845{
c01fc9ad 4846 int err;
ff276691 4847 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4848 if (info->attrs[NL80211_ATTR_PEER_AID])
4849 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4850 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4851 params->ht_capa =
4852 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4853 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4854 params->vht_capa =
4855 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4856
c01fc9ad
SD		 4857 err = nl80211_parse_sta_channel_info(info, params);
4858 if (err)
4859 return err;
4860
ff276691
JB		 4861 return nl80211_parse_sta_wme(info, params);
4862}
4863
5727ef1b
JB		 4864static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4865{
4c476991 4866 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4867 struct net_device *dev = info->user_ptr[1];
5727ef1b 4868 struct station_parameters params;
77ee7c89
JB		 4869 u8 *mac_addr;
4870 int err;
5727ef1b
JB		 4871
4872 memset(&params, 0, sizeof(params));
4873
77ee7c89
JB		 4874 if (!rdev->ops->change_station)
4875 return -EOPNOTSUPP;
4876
e4208427
AB		 4877 /*
4878 * AID and listen_interval properties can be set only for unassociated
4879 * station. Include these parameters here and will check them in
4880 * cfg80211_check_station_change().
4881 */
a9bc31e4
AB		 4882 if (info->attrs[NL80211_ATTR_STA_AID])
4883 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4884
4885 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4886 params.listen_interval =
4887 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4888 else
4889 params.listen_interval = -1;
5727ef1b 4890
17b94247
AB		 4891 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4892 u8 tmp;
4893
4894 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4895 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4896 return -EINVAL;
4897
4898 params.support_p2p_ps = tmp;
4899 } else {
4900 params.support_p2p_ps = -1;
4901 }
4902
5727ef1b
JB		 4903 if (!info->attrs[NL80211_ATTR_MAC])
4904 return -EINVAL;
4905
4906 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4907
4908 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4909 params.supported_rates =
4910 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4911 params.supported_rates_len =
4912 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4913 }
4914
9d62a986
JM		 4915 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4916 params.capability =
4917 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4918 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4919 }
4920
4921 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4922 params.ext_capab =
4923 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4924 params.ext_capab_len =
4925 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4926 }
4927
bdd3ae3d 4928 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4929 return -EINVAL;
4930
f8bacc21 4931 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4932 params.plink_action =
f8bacc21
JB		 4933 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4934 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4935 return -EINVAL;
4936 }
2ec600d6 4937
f8bacc21 4938 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4939 params.plink_state =
f8bacc21
JB		 4940 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4941 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4942 return -EINVAL;
7d27a0ba
MH		 4943 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4944 params.peer_aid = nla_get_u16(
4945 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4946 if (params.peer_aid > IEEE80211_MAX_AID)
4947 return -EINVAL;
4948 }
f8bacc21
JB		 4949 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4950 }
9c3990aa 4951
3b1c5a53
MP		 4952 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4953 enum nl80211_mesh_power_mode pm = nla_get_u32(
4954 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4955
4956 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4957 pm > NL80211_MESH_POWER_MAX)
4958 return -EINVAL;
4959
4960 params.local_pm = pm;
4961 }
4962
06f7c88c
BL		 4963 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4964 params.opmode_notif_used = true;
4965 params.opmode_notif =
4966 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4967 }
4968
77ee7c89
JB		 4969 /* Include parameters for TDLS peer (will check later) */
4970 err = nl80211_set_station_tdls(info, &params);
4971 if (err)
4972 return err;
4973
4974 params.vlan = get_vlan(info, rdev);
4975 if (IS_ERR(params.vlan))
4976 return PTR_ERR(params.vlan);
4977
a97f4424
JB		 4978 switch (dev->ieee80211_ptr->iftype) {
4979 case NL80211_IFTYPE_AP:
4980 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4981 case NL80211_IFTYPE_P2P_GO:
074ac8df 4982 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4983 case NL80211_IFTYPE_STATION:
267335d6 4984 case NL80211_IFTYPE_ADHOC:
a97f4424 4985 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4986 break;
4987 default:
77ee7c89
JB		 4988 err = -EOPNOTSUPP;
4989 goto out_put_vlan;
034d655e
JB		 4990 }
4991
77ee7c89 4992 /* driver will call cfg80211_check_station_change() */
e35e4d28 4993 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4994
77ee7c89 4995 out_put_vlan:
5727ef1b
JB		 4996 if (params.vlan)
4997 dev_put(params.vlan);
3b85875a 4998
5727ef1b
JB		 4999 return err;
5000}
5001
5002static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
5003{
4c476991 5004 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 5005 int err;
4c476991 5006 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 5007 struct station_parameters params;
5008 u8 *mac_addr = NULL;
bda95eb1
JB		 5009 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
5010 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 5011
5012 memset(&params, 0, sizeof(params));
5013
984c311b
JB		 5014 if (!rdev->ops->add_station)
5015 return -EOPNOTSUPP;
5016
5727ef1b
JB		 5017 if (!info->attrs[NL80211_ATTR_MAC])
5018 return -EINVAL;
5019
5727ef1b
JB		 5020 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
5021 return -EINVAL;
5022
5023 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
5024 return -EINVAL;
5025
5e4b6f56
JM		 5026 if (!info->attrs[NL80211_ATTR_STA_AID] &&
5027 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 5028 return -EINVAL;
5029
5727ef1b
JB		 5030 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
5031 params.supported_rates =
5032 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5033 params.supported_rates_len =
5034 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5035 params.listen_interval =
5036 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 5037
17b94247
AB		 5038 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
5039 u8 tmp;
5040
5041 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
5042 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
5043 return -EINVAL;
5044
5045 params.support_p2p_ps = tmp;
5046 } else {
5047 /*
5048 * if not specified, assume it's supported for P2P GO interface,
5049 * and is NOT supported for AP interface
5050 */
5051 params.support_p2p_ps =
5052 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
5053 }
5054
3d124ea2 5055 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 5056 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 5057 else
5058 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 5059 if (!params.aid || params.aid > IEEE80211_MAX_AID)
5060 return -EINVAL;
51b50fbe 5061
9d62a986
JM		 5062 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
5063 params.capability =
5064 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
5065 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
5066 }
5067
5068 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
5069 params.ext_capab =
5070 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5071 params.ext_capab_len =
5072 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5073 }
5074
36aedc90
JM		 5075 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
5076 params.ht_capa =
5077 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 5078
f461be3e
MP		 5079 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
5080 params.vht_capa =
5081 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
5082
60f4a7b1
MK		 5083 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5084 params.opmode_notif_used = true;
5085 params.opmode_notif =
5086 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5087 }
5088
f8bacc21 5089 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 5090 params.plink_action =
f8bacc21
JB		 5091 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
5092 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
5093 return -EINVAL;
5094 }
96b78dff 5095
c01fc9ad
SD		 5096 err = nl80211_parse_sta_channel_info(info, &params);
5097 if (err)
5098 return err;
5099
ff276691
JB		 5100 err = nl80211_parse_sta_wme(info, &params);
5101 if (err)
5102 return err;
bdd90d5e 5103
bdd3ae3d 5104 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 5105 return -EINVAL;
5106
496fcc29
JB		 5107 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
5108 * as userspace might just pass through the capabilities from the IEs
5109 * directly, rather than enforcing this restriction and returning an
5110 * error in this case.
5111 */
5112 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
5113 params.ht_capa = NULL;
5114 params.vht_capa = NULL;
5115 }
5116
77ee7c89
JB		 5117 /* When you run into this, adjust the code below for the new flag */
5118 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
5119
bdd90d5e
JB		 5120 switch (dev->ieee80211_ptr->iftype) {
5121 case NL80211_IFTYPE_AP:
5122 case NL80211_IFTYPE_AP_VLAN:
5123 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 5124 /* ignore WME attributes if iface/sta is not capable */
5125 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
5126 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
5127 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 5128
bdd90d5e 5129 /* TDLS peers cannot be added */
3d124ea2
JM		 5130 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5131 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 5132 return -EINVAL;
bdd90d5e
JB		 5133 /* but don't bother the driver with it */
5134 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 5135
d582cffb
JB		 5136 /* allow authenticated/associated only if driver handles it */
5137 if (!(rdev->wiphy.features &
5138 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 5139 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 5140 return -EINVAL;
5141
bda95eb1
JB		 5142 /* Older userspace, or userspace wanting to be compatible with
5143 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
5144 * and assoc flags in the mask, but assumes the station will be
5145 * added as associated anyway since this was the required driver
5146 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
5147 * introduced.
5148 * In order to not bother drivers with this quirk in the API
5149 * set the flags in both the mask and set for new stations in
5150 * this case.
5151 */
5152 if (!(params.sta_flags_mask & auth_assoc)) {
5153 params.sta_flags_mask |= auth_assoc;
5154 params.sta_flags_set |= auth_assoc;
5155 }
5156
bdd90d5e
JB		 5157 /* must be last in here for error handling */
5158 params.vlan = get_vlan(info, rdev);
5159 if (IS_ERR(params.vlan))
5160 return PTR_ERR(params.vlan);
5161 break;
5162 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 5163 /* ignore uAPSD data */
5164 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5165
d582cffb
JB		 5166 /* associated is disallowed */
5167 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
5168 return -EINVAL;
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])
bdd90d5e
JB		 5172 return -EINVAL;
5173 break;
5174 case NL80211_IFTYPE_STATION:
93d08f0b 5175 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 5176 /* ignore uAPSD data */
5177 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5178
77ee7c89
JB		 5179 /* these are disallowed */
5180 if (params.sta_flags_mask &
5181 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
5182 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 5183 return -EINVAL;
bdd90d5e
JB		 5184 /* Only TDLS peers can be added */
5185 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
5186 return -EINVAL;
5187 /* Can only add if TDLS ... */
5188 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
5189 return -EOPNOTSUPP;
5190 /* ... with external setup is supported */
5191 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
5192 return -EOPNOTSUPP;
77ee7c89
JB		 5193 /*
5194 * Older wpa_supplicant versions always mark the TDLS peer
5195 * as authorized, but it shouldn't yet be.
5196 */
5197 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 5198 break;
5199 default:
5200 return -EOPNOTSUPP;
c75786c9
EP		 5201 }
5202
bdd90d5e 5203 /* be aware of params.vlan when changing code here */
5727ef1b 5204
e35e4d28 5205 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 5206
5727ef1b
JB		 5207 if (params.vlan)
5208 dev_put(params.vlan);
5727ef1b
JB		 5209 return err;
5210}
5211
5212static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
5213{
4c476991
JB		 5214 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5215 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 5216 struct station_del_parameters params;
5217
5218 memset(&params, 0, sizeof(params));
5727ef1b
JB		 5219
5220 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 5221 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 5222
e80cf853 5223 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 5224 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 5225 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5226 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5227 return -EINVAL;
5727ef1b 5228
4c476991
JB		 5229 if (!rdev->ops->del_station)
5230 return -EOPNOTSUPP;
3b85875a 5231
98856866
JM		 5232 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
5233 params.subtype =
5234 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
5235 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
5236 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
5237 return -EINVAL;
5238 } else {
5239 /* Default to Deauthentication frame */
5240 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
5241 }
5242
5243 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
5244 params.reason_code =
5245 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5246 if (params.reason_code == 0)
5247 return -EINVAL; /* 0 is reserved */
5248 } else {
5249 /* Default to reason code 2 */
5250 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
5251 }
5252
89c771e5 5253 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 5254}
5255
15e47304 5256static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 5257 int flags, struct net_device *dev,
5258 u8 *dst, u8 *next_hop,
5259 struct mpath_info *pinfo)
5260{
5261 void *hdr;
5262 struct nlattr *pinfoattr;
5263
1ef4c850 5264 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 5265 if (!hdr)
5266 return -1;
5267
9360ffd1
DM		 5268 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5269 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
5270 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
5271 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
5272 goto nla_put_failure;
f5ea9120 5273
2ec600d6
LCC		 5274 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
5275 if (!pinfoattr)
5276 goto nla_put_failure;
9360ffd1
DM		 5277 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
5278 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
5279 pinfo->frame_qlen))
5280 goto nla_put_failure;
5281 if (((pinfo->filled & MPATH_INFO_SN) &&
5282 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
5283 ((pinfo->filled & MPATH_INFO_METRIC) &&
5284 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
5285 pinfo->metric)) ||
5286 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
5287 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
5288 pinfo->exptime)) ||
5289 ((pinfo->filled & MPATH_INFO_FLAGS) &&
5290 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
5291 pinfo->flags)) ||
5292 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
5293 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
5294 pinfo->discovery_timeout)) ||
5295 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
5296 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
5297 pinfo->discovery_retries)))
5298 goto nla_put_failure;
2ec600d6
LCC		 5299
5300 nla_nest_end(msg, pinfoattr);
5301
053c095a
JB		 5302 genlmsg_end(msg, hdr);
5303 return 0;
2ec600d6
LCC		 5304
5305 nla_put_failure:
bc3ed28c
TG		 5306 genlmsg_cancel(msg, hdr);
5307 return -EMSGSIZE;
2ec600d6
LCC		 5308}
5309
5310static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 5311 struct netlink_callback *cb)
2ec600d6 5312{
2ec600d6 5313 struct mpath_info pinfo;
1b8ec87a 5314 struct cfg80211_registered_device *rdev;
97990a06 5315 struct wireless_dev *wdev;
2ec600d6
LCC		 5316 u8 dst[ETH_ALEN];
5317 u8 next_hop[ETH_ALEN];
97990a06 5318 int path_idx = cb->args[2];
2ec600d6 5319 int err;
2ec600d6 5320
ea90e0dc 5321 rtnl_lock();
1b8ec87a 5322 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893 5323 if (err)
ea90e0dc 5324 goto out_err;
bba95fef 5325
1b8ec87a 5326 if (!rdev->ops->dump_mpath) {
eec60b03 5327 err = -EOPNOTSUPP;
bba95fef
JB		 5328 goto out_err;
5329 }
5330
97990a06 5331 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 5332 err = -EOPNOTSUPP;
0448b5fc 5333 goto out_err;
eec60b03
JM		 5334 }
5335
bba95fef 5336 while (1) {
1b8ec87a 5337 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 5338 next_hop, &pinfo);
bba95fef 5339 if (err == -ENOENT)
2ec600d6 5340 break;
bba95fef 5341 if (err)
3b85875a 5342 goto out_err;
2ec600d6 5343
15e47304 5344 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 5345 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5346 wdev->netdev, dst, next_hop,
bba95fef
JB		 5347 &pinfo) < 0)
5348 goto out;
2ec600d6 5349
bba95fef 5350 path_idx++;
2ec600d6 5351 }
2ec600d6 5352
bba95fef 5353 out:
97990a06 5354 cb->args[2] = path_idx;
bba95fef 5355 err = skb->len;
bba95fef 5356 out_err:
ea90e0dc 5357 rtnl_unlock();
bba95fef 5358 return err;
2ec600d6
LCC		 5359}
5360
5361static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
5362{
4c476991 5363 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 5364 int err;
4c476991 5365 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5366 struct mpath_info pinfo;
5367 struct sk_buff *msg;
5368 u8 *dst = NULL;
5369 u8 next_hop[ETH_ALEN];
5370
5371 memset(&pinfo, 0, sizeof(pinfo));
5372
5373 if (!info->attrs[NL80211_ATTR_MAC])
5374 return -EINVAL;
5375
5376 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5377
4c476991
JB		 5378 if (!rdev->ops->get_mpath)
5379 return -EOPNOTSUPP;
2ec600d6 5380
4c476991
JB		 5381 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5382 return -EOPNOTSUPP;
eec60b03 5383
e35e4d28 5384 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 5385 if (err)
4c476991 5386 return err;
2ec600d6 5387
fd2120ca 5388 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 5389 if (!msg)
4c476991 5390 return -ENOMEM;
2ec600d6 5391
15e47304 5392 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 5393 dev, dst, next_hop, &pinfo) < 0) {
5394 nlmsg_free(msg);
5395 return -ENOBUFS;
5396 }
3b85875a 5397
4c476991 5398 return genlmsg_reply(msg, info);
2ec600d6
LCC		 5399}
5400
5401static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
5402{
4c476991
JB		 5403 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5404 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5405 u8 *dst = NULL;
5406 u8 *next_hop = NULL;
5407
5408 if (!info->attrs[NL80211_ATTR_MAC])
5409 return -EINVAL;
5410
5411 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5412 return -EINVAL;
5413
5414 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5415 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5416
4c476991
JB		 5417 if (!rdev->ops->change_mpath)
5418 return -EOPNOTSUPP;
35a8efe1 5419
4c476991
JB		 5420 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5421 return -EOPNOTSUPP;
2ec600d6 5422
e35e4d28 5423 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 5424}
4c476991 5425
2ec600d6
LCC		 5426static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
5427{
4c476991
JB		 5428 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5429 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5430 u8 *dst = NULL;
5431 u8 *next_hop = NULL;
5432
5433 if (!info->attrs[NL80211_ATTR_MAC])
5434 return -EINVAL;
5435
5436 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5437 return -EINVAL;
5438
5439 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5440 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5441
4c476991
JB		 5442 if (!rdev->ops->add_mpath)
5443 return -EOPNOTSUPP;
35a8efe1 5444
4c476991
JB		 5445 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5446 return -EOPNOTSUPP;
2ec600d6 5447
e35e4d28 5448 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 5449}
5450
5451static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
5452{
4c476991
JB		 5453 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5454 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5455 u8 *dst = NULL;
5456
5457 if (info->attrs[NL80211_ATTR_MAC])
5458 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5459
4c476991
JB		 5460 if (!rdev->ops->del_mpath)
5461 return -EOPNOTSUPP;
3b85875a 5462
e35e4d28 5463 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 5464}
5465
66be7d2b
HR		 5466static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
5467{
5468 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5469 int err;
5470 struct net_device *dev = info->user_ptr[1];
5471 struct mpath_info pinfo;
5472 struct sk_buff *msg;
5473 u8 *dst = NULL;
5474 u8 mpp[ETH_ALEN];
5475
5476 memset(&pinfo, 0, sizeof(pinfo));
5477
5478 if (!info->attrs[NL80211_ATTR_MAC])
5479 return -EINVAL;
5480
5481 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5482
5483 if (!rdev->ops->get_mpp)
5484 return -EOPNOTSUPP;
5485
5486 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5487 return -EOPNOTSUPP;
5488
5489 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5490 if (err)
5491 return err;
5492
5493 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5494 if (!msg)
5495 return -ENOMEM;
5496
5497 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5498 dev, dst, mpp, &pinfo) < 0) {
5499 nlmsg_free(msg);
5500 return -ENOBUFS;
5501 }
5502
5503 return genlmsg_reply(msg, info);
5504}
5505
5506static int nl80211_dump_mpp(struct sk_buff *skb,
5507 struct netlink_callback *cb)
5508{
5509 struct mpath_info pinfo;
5510 struct cfg80211_registered_device *rdev;
5511 struct wireless_dev *wdev;
5512 u8 dst[ETH_ALEN];
5513 u8 mpp[ETH_ALEN];
5514 int path_idx = cb->args[2];
5515 int err;
5516
ea90e0dc 5517 rtnl_lock();
66be7d2b
HR		 5518 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5519 if (err)
ea90e0dc 5520 goto out_err;
66be7d2b
HR		 5521
5522 if (!rdev->ops->dump_mpp) {
5523 err = -EOPNOTSUPP;
5524 goto out_err;
5525 }
5526
5527 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5528 err = -EOPNOTSUPP;
5529 goto out_err;
5530 }
5531
5532 while (1) {
5533 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5534 mpp, &pinfo);
5535 if (err == -ENOENT)
5536 break;
5537 if (err)
5538 goto out_err;
5539
5540 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5541 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5542 wdev->netdev, dst, mpp,
5543 &pinfo) < 0)
5544 goto out;
5545
5546 path_idx++;
5547 }
5548
5549 out:
5550 cb->args[2] = path_idx;
5551 err = skb->len;
5552 out_err:
ea90e0dc 5553 rtnl_unlock();
66be7d2b
HR		 5554 return err;
5555}
5556
9f1ba906
JM		 5557static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5558{
4c476991
JB		 5559 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5560 struct net_device *dev = info->user_ptr[1];
c56589ed 5561 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 5562 struct bss_parameters params;
c56589ed 5563 int err;
9f1ba906
JM		 5564
5565 memset(&params, 0, sizeof(params));
5566 /* default to not changing parameters */
5567 params.use_cts_prot = -1;
5568 params.use_short_preamble = -1;
5569 params.use_short_slot_time = -1;
fd8aaaf3 5570 params.ap_isolate = -1;
50b12f59 5571 params.ht_opmode = -1;
53cabad7
JB		 5572 params.p2p_ctwindow = -1;
5573 params.p2p_opp_ps = -1;
9f1ba906
JM		 5574
5575 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5576 params.use_cts_prot =
5577 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5578 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5579 params.use_short_preamble =
5580 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5581 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5582 params.use_short_slot_time =
5583 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 5584 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5585 params.basic_rates =
5586 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5587 params.basic_rates_len =
5588 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5589 }
fd8aaaf3
FF		 5590 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5591 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 5592 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5593 params.ht_opmode =
5594 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 5595
53cabad7
JB		 5596 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5597 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5598 return -EINVAL;
5599 params.p2p_ctwindow =
5600 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5601 if (params.p2p_ctwindow < 0)
5602 return -EINVAL;
5603 if (params.p2p_ctwindow != 0 &&
5604 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5605 return -EINVAL;
5606 }
5607
5608 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5609 u8 tmp;
5610
5611 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5612 return -EINVAL;
5613 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5614 if (tmp > 1)
5615 return -EINVAL;
5616 params.p2p_opp_ps = tmp;
5617 if (params.p2p_opp_ps &&
5618 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5619 return -EINVAL;
5620 }
5621
4c476991
JB		 5622 if (!rdev->ops->change_bss)
5623 return -EOPNOTSUPP;
9f1ba906 5624
074ac8df 5625 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5626 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5627 return -EOPNOTSUPP;
3b85875a 5628
c56589ed
SW		 5629 wdev_lock(wdev);
5630 err = rdev_change_bss(rdev, dev, &params);
5631 wdev_unlock(wdev);
5632
5633 return err;
9f1ba906
JM		 5634}
5635
b2e1b302
LR		 5636static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5637{
b2e1b302 5638 char *data = NULL;
05050753 5639 bool is_indoor;
57b5ce07 5640 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5641 u32 owner_nlportid;
5642
80778f18
LR		 5643 /*
5644 * You should only get this when cfg80211 hasn't yet initialized
5645 * completely when built-in to the kernel right between the time
5646 * window between nl80211_init() and regulatory_init(), if that is
5647 * even possible.
5648 */
458f4f9e 5649 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5650 return -EINPROGRESS;
80778f18 5651
57b5ce07
LR		 5652 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5653 user_reg_hint_type =
5654 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5655 else
5656 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5657
5658 switch (user_reg_hint_type) {
5659 case NL80211_USER_REG_HINT_USER:
5660 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5661 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5662 return -EINVAL;
5663
5664 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5665 return regulatory_hint_user(data, user_reg_hint_type);
5666 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5667 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5668 owner_nlportid = info->snd_portid;
5669 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5670 } else {
5671 owner_nlportid = 0;
5672 is_indoor = true;
5673 }
5674
5675 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5676 default:
5677 return -EINVAL;
5678 }
b2e1b302
LR		 5679}
5680
24bdd9f4 5681static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5682 struct genl_info *info)
93da9cc1 5683{
4c476991 5684 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5685 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5686 struct wireless_dev *wdev = dev->ieee80211_ptr;
5687 struct mesh_config cur_params;
5688 int err = 0;
93da9cc1 5689 void *hdr;
5690 struct nlattr *pinfoattr;
5691 struct sk_buff *msg;
5692
29cbe68c
JB		 5693 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5694 return -EOPNOTSUPP;
5695
24bdd9f4 5696 if (!rdev->ops->get_mesh_config)
4c476991 5697 return -EOPNOTSUPP;
f3f92586 5698
29cbe68c
JB		 5699 wdev_lock(wdev);
5700 /* If not connected, get default parameters */
5701 if (!wdev->mesh_id_len)
5702 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5703 else
e35e4d28 5704 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5705 wdev_unlock(wdev);
5706
93da9cc1 5707 if (err)
4c476991 5708 return err;
93da9cc1 5709
5710 /* Draw up a netlink message to send back */
fd2120ca 5711 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5712 if (!msg)
5713 return -ENOMEM;
15e47304 5714 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5715 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5716 if (!hdr)
efe1cf0c 5717 goto out;
24bdd9f4 5718 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5719 if (!pinfoattr)
5720 goto nla_put_failure;
9360ffd1
DM		 5721 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5722 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5723 cur_params.dot11MeshRetryTimeout) ||
5724 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5725 cur_params.dot11MeshConfirmTimeout) ||
5726 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5727 cur_params.dot11MeshHoldingTimeout) ||
5728 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5729 cur_params.dot11MeshMaxPeerLinks) ||
5730 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5731 cur_params.dot11MeshMaxRetries) ||
5732 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5733 cur_params.dot11MeshTTL) ||
5734 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5735 cur_params.element_ttl) ||
5736 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5737 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5738 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5739 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5740 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5741 cur_params.dot11MeshHWMPmaxPREQretries) ||
5742 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5743 cur_params.path_refresh_time) ||
5744 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5745 cur_params.min_discovery_timeout) ||
5746 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5747 cur_params.dot11MeshHWMPactivePathTimeout) ||
5748 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5749 cur_params.dot11MeshHWMPpreqMinInterval) ||
5750 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5751 cur_params.dot11MeshHWMPperrMinInterval) ||
5752 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5753 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5754 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5755 cur_params.dot11MeshHWMPRootMode) ||
5756 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5757 cur_params.dot11MeshHWMPRannInterval) ||
5758 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5759 cur_params.dot11MeshGateAnnouncementProtocol) ||
5760 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5761 cur_params.dot11MeshForwarding) ||
335d5349 5762 nla_put_s32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5763 cur_params.rssi_threshold) ||
5764 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5765 cur_params.ht_opmode) ||
5766 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5767 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5768 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5769 cur_params.dot11MeshHWMProotInterval) ||
5770 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5771 cur_params.dot11MeshHWMPconfirmationInterval) ||
5772 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5773 cur_params.power_mode) ||
5774 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5775 cur_params.dot11MeshAwakeWindowDuration) ||
5776 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5777 cur_params.plink_timeout))
9360ffd1 5778 goto nla_put_failure;
93da9cc1 5779 nla_nest_end(msg, pinfoattr);
5780 genlmsg_end(msg, hdr);
4c476991 5781 return genlmsg_reply(msg, info);
93da9cc1 5782
3b85875a 5783 nla_put_failure:
93da9cc1 5784 genlmsg_cancel(msg, hdr);
efe1cf0c 5785 out:
d080e275 5786 nlmsg_free(msg);
4c476991 5787 return -ENOBUFS;
93da9cc1 5788}
5789
b54452b0 5790static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5791 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5792 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5793 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5794 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5795 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5796 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5797 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5798 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5799 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5800 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5801 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5802 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5803 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5804 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5805 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5806 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5807 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5808 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5809 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5810 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5811 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5812 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5813 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5814 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5815 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5816 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5817 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5818 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5819};
5820
c80d545d
JC		 5821static const struct nla_policy
5822 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5823 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5824 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5825 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5826 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5827 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5828 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5829 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5830 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5831 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5832};
5833
f151d9db
AB		 5834static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5835{
5836 u8 val = nla_get_u8(nla);
5837 if (val < min || val > max)
5838 return -EINVAL;
5839 *out = val;
5840 return 0;
5841}
5842
5843static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5844{
5845 u8 val = nla_get_u8(nla);
5846 if (val < min || val > max)
5847 return -EINVAL;
5848 *out = val;
5849 return 0;
5850}
5851
5852static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5853{
5854 u16 val = nla_get_u16(nla);
5855 if (val < min || val > max)
5856 return -EINVAL;
5857 *out = val;
5858 return 0;
5859}
5860
5861static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5862{
5863 u32 val = nla_get_u32(nla);
5864 if (val < min || val > max)
5865 return -EINVAL;
5866 *out = val;
5867 return 0;
5868}
5869
5870static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5871{
5872 s32 val = nla_get_s32(nla);
5873 if (val < min || val > max)
5874 return -EINVAL;
5875 *out = val;
5876 return 0;
5877}
5878
ff9a71af
JB		 5879static int nl80211_check_power_mode(const struct nlattr *nla,
5880 enum nl80211_mesh_power_mode min,
5881 enum nl80211_mesh_power_mode max,
5882 enum nl80211_mesh_power_mode *out)
5883{
5884 u32 val = nla_get_u32(nla);
5885 if (val < min || val > max)
5886 return -EINVAL;
5887 *out = val;
5888 return 0;
5889}
5890
24bdd9f4 5891static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5892 struct mesh_config *cfg,
5893 u32 *mask_out)
93da9cc1 5894{
93da9cc1 5895 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5896 u32 mask = 0;
9757235f 5897 u16 ht_opmode;
93da9cc1 5898
ea54fba2
MP		 5899#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5900do { \
5901 if (tb[attr]) { \
f151d9db 5902 if (fn(tb[attr], min, max, &cfg->param)) \
ea54fba2 5903 return -EINVAL; \
ea54fba2
MP		 5904 mask |= (1 << (attr - 1)); \
5905 } \
5906} while (0)
bd90fdcc 5907
24bdd9f4 5908 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5909 return -EINVAL;
5910 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5911 info->attrs[NL80211_ATTR_MESH_CONFIG],
fe52145f 5912 nl80211_meshconf_params_policy, info->extack))
93da9cc1 5913 return -EINVAL;
5914
93da9cc1 5915 /* This makes sure that there aren't more than 32 mesh config
5916 * parameters (otherwise our bitfield scheme would not work.) */
5917 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5918
5919 /* Fill in the params struct */
ea54fba2 5920 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea 5921 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
f151d9db 5922 nl80211_check_u16);
ea54fba2 5923 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea 5924 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
f151d9db 5925 nl80211_check_u16);
ea54fba2 5926 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea 5927 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
f151d9db 5928 nl80211_check_u16);
ea54fba2 5929 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea 5930 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
f151d9db 5931 nl80211_check_u16);
ea54fba2 5932 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea 5933 mask, NL80211_MESHCONF_MAX_RETRIES,
f151d9db 5934 nl80211_check_u8);
ea54fba2 5935 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
f151d9db 5936 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
ea54fba2 5937 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea 5938 mask, NL80211_MESHCONF_ELEMENT_TTL,
f151d9db 5939 nl80211_check_u8);
ea54fba2 5940 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea 5941 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
f151d9db 5942 nl80211_check_bool);
ea54fba2
MP		 5943 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5944 1, 255, mask,
a4f606ea 5945 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
f151d9db 5946 nl80211_check_u32);
ea54fba2 5947 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea 5948 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
f151d9db 5949 nl80211_check_u8);
ea54fba2 5950 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea 5951 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
f151d9db 5952 nl80211_check_u32);
ea54fba2 5953 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea 5954 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
f151d9db 5955 nl80211_check_u16);
ea54fba2
MP		 5956 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5957 1, 65535, mask,
a4f606ea 5958 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
f151d9db 5959 nl80211_check_u32);
93da9cc1 5960 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5961 1, 65535, mask,
5962 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
f151d9db 5963 nl80211_check_u16);
dca7e943 5964 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5965 1, 65535, mask,
5966 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
f151d9db 5967 nl80211_check_u16);
93da9cc1 5968 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5969 dot11MeshHWMPnetDiameterTraversalTime,
5970 1, 65535, mask,
a4f606ea 5971 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
f151d9db 5972 nl80211_check_u16);
ea54fba2
MP		 5973 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5974 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
f151d9db 5975 nl80211_check_u8);
ea54fba2
MP		 5976 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5977 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
f151d9db 5978 nl80211_check_u16);
63c5723b 5979 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5980 dot11MeshGateAnnouncementProtocol, 0, 1,
5981 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
f151d9db 5982 nl80211_check_bool);
ea54fba2 5983 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea 5984 mask, NL80211_MESHCONF_FORWARDING,
f151d9db 5985 nl80211_check_bool);
83374fe9 5986 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5987 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
f151d9db 5988 nl80211_check_s32);
9757235f
MH		 5989 /*
5990 * Check HT operation mode based on
5991 * IEEE 802.11 2012 8.4.2.59 HT Operation element.
5992 */
5993 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
5994 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
5995
5996 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
5997 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
5998 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5999 return -EINVAL;
6000
6001 if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
6002 (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
6003 return -EINVAL;
6004
6005 switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
6006 case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
6007 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
6008 if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
6009 return -EINVAL;
6010 break;
6011 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
6012 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
6013 if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
6014 return -EINVAL;
6015 break;
6016 }
6017 cfg->ht_opmode = ht_opmode;
fd551bac 6018 mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
9757235f 6019 }
ac1073a6 6020 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 6021 1, 65535, mask,
ac1073a6 6022 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
f151d9db 6023 nl80211_check_u32);
ea54fba2 6024 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 6025 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
f151d9db 6026 nl80211_check_u16);
728b19e5 6027 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 6028 dot11MeshHWMPconfirmationInterval,
6029 1, 65535, mask,
728b19e5 6030 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
f151d9db 6031 nl80211_check_u16);
3b1c5a53
MP		 6032 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
6033 NL80211_MESH_POWER_ACTIVE,
6034 NL80211_MESH_POWER_MAX,
6035 mask, NL80211_MESHCONF_POWER_MODE,
ff9a71af 6036 nl80211_check_power_mode);
3b1c5a53
MP		 6037 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
6038 0, 65535, mask,
f151d9db 6039 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
31f909a2 6040 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538 6041 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
f151d9db 6042 nl80211_check_u32);
bd90fdcc
JB		 6043 if (mask_out)
6044 *mask_out = mask;
c80d545d 6045
bd90fdcc
JB		 6046 return 0;
6047
6048#undef FILL_IN_MESH_PARAM_IF_SET
6049}
6050
c80d545d
JC		 6051static int nl80211_parse_mesh_setup(struct genl_info *info,
6052 struct mesh_setup *setup)
6053{
bb2798d4 6054 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 6055 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
6056
6057 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
6058 return -EINVAL;
6059 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
6060 info->attrs[NL80211_ATTR_MESH_SETUP],
fe52145f 6061 nl80211_mesh_setup_params_policy, info->extack))
c80d545d
JC		 6062 return -EINVAL;
6063
d299a1f2
JC		 6064 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
6065 setup->sync_method =
6066 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
6067 IEEE80211_SYNC_METHOD_VENDOR :
6068 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
6069
c80d545d
JC		 6070 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
6071 setup->path_sel_proto =
6072 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
6073 IEEE80211_PATH_PROTOCOL_VENDOR :
6074 IEEE80211_PATH_PROTOCOL_HWMP;
6075
6076 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
6077 setup->path_metric =
6078 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
6079 IEEE80211_PATH_METRIC_VENDOR :
6080 IEEE80211_PATH_METRIC_AIRTIME;
6081
581a8b0f 6082 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 6083 struct nlattr *ieattr =
581a8b0f 6084 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 6085 if (!is_valid_ie_attr(ieattr))
6086 return -EINVAL;
581a8b0f
JC		 6087 setup->ie = nla_data(ieattr);
6088 setup->ie_len = nla_len(ieattr);
c80d545d 6089 }
bb2798d4
TP		 6090 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
6091 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
6092 return -EINVAL;
6093 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 6094 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
6095 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 6096 if (setup->is_secure)
6097 setup->user_mpm = true;
c80d545d 6098
6e16d90b
CT		 6099 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
6100 if (!setup->user_mpm)
6101 return -EINVAL;
6102 setup->auth_id =
6103 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
6104 }
6105
c80d545d
JC		 6106 return 0;
6107}
6108
24bdd9f4 6109static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 6110 struct genl_info *info)
bd90fdcc
JB		 6111{
6112 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6113 struct net_device *dev = info->user_ptr[1];
29cbe68c 6114 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 6115 struct mesh_config cfg;
6116 u32 mask;
6117 int err;
6118
29cbe68c
JB		 6119 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
6120 return -EOPNOTSUPP;
6121
24bdd9f4 6122 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 6123 return -EOPNOTSUPP;
6124
24bdd9f4 6125 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 6126 if (err)
6127 return err;
6128
29cbe68c
JB		 6129 wdev_lock(wdev);
6130 if (!wdev->mesh_id_len)
6131 err = -ENOLINK;
6132
6133 if (!err)
e35e4d28 6134 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 6135
6136 wdev_unlock(wdev);
6137
6138 return err;
93da9cc1 6139}
6140
ad30ca2c
AN		 6141static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
6142 struct sk_buff *msg)
f130347c 6143{
f130347c
LR		 6144 struct nlattr *nl_reg_rules;
6145 unsigned int i;
f130347c 6146
458f4f9e
JB		 6147 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
6148 (regdom->dfs_region &&
6149 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 6150 goto nla_put_failure;
458f4f9e 6151
f130347c
LR		 6152 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
6153 if (!nl_reg_rules)
ad30ca2c 6154 goto nla_put_failure;
f130347c 6155
458f4f9e 6156 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 6157 struct nlattr *nl_reg_rule;
6158 const struct ieee80211_reg_rule *reg_rule;
6159 const struct ieee80211_freq_range *freq_range;
6160 const struct ieee80211_power_rule *power_rule;
97524820 6161 unsigned int max_bandwidth_khz;
f130347c 6162
458f4f9e 6163 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 6164 freq_range = &reg_rule->freq_range;
6165 power_rule = &reg_rule->power_rule;
6166
6167 nl_reg_rule = nla_nest_start(msg, i);
6168 if (!nl_reg_rule)
ad30ca2c 6169 goto nla_put_failure;
f130347c 6170
97524820
JD		 6171 max_bandwidth_khz = freq_range->max_bandwidth_khz;
6172 if (!max_bandwidth_khz)
6173 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
6174 reg_rule);
6175
9360ffd1
DM		 6176 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
6177 reg_rule->flags) ||
6178 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
6179 freq_range->start_freq_khz) ||
6180 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
6181 freq_range->end_freq_khz) ||
6182 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 6183 max_bandwidth_khz) ||
9360ffd1
DM		 6184 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
6185 power_rule->max_antenna_gain) ||
6186 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 6187 power_rule->max_eirp) ||
6188 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
6189 reg_rule->dfs_cac_ms))
ad30ca2c 6190 goto nla_put_failure;
f130347c
LR		 6191
6192 nla_nest_end(msg, nl_reg_rule);
6193 }
6194
6195 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 6196 return 0;
6197
6198nla_put_failure:
6199 return -EMSGSIZE;
6200}
6201
6202static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
6203{
6204 const struct ieee80211_regdomain *regdom = NULL;
6205 struct cfg80211_registered_device *rdev;
6206 struct wiphy *wiphy = NULL;
6207 struct sk_buff *msg;
6208 void *hdr;
6209
6210 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6211 if (!msg)
6212 return -ENOBUFS;
6213
6214 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6215 NL80211_CMD_GET_REG);
6216 if (!hdr)
6217 goto put_failure;
6218
6219 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 6220 bool self_managed;
6221
ad30ca2c
AN		 6222 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6223 if (IS_ERR(rdev)) {
6224 nlmsg_free(msg);
6225 return PTR_ERR(rdev);
6226 }
6227
6228 wiphy = &rdev->wiphy;
1bdd716c
AN		 6229 self_managed = wiphy->regulatory_flags &
6230 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 6231 regdom = get_wiphy_regdom(wiphy);
6232
1bdd716c
AN		 6233 /* a self-managed-reg device must have a private regdom */
6234 if (WARN_ON(!regdom && self_managed)) {
6235 nlmsg_free(msg);
6236 return -EINVAL;
6237 }
6238
ad30ca2c
AN		 6239 if (regdom &&
6240 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6241 goto nla_put_failure;
6242 }
6243
6244 if (!wiphy && reg_last_request_cell_base() &&
6245 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6246 NL80211_USER_REG_HINT_CELL_BASE))
6247 goto nla_put_failure;
6248
6249 rcu_read_lock();
6250
6251 if (!regdom)
6252 regdom = rcu_dereference(cfg80211_regdomain);
6253
6254 if (nl80211_put_regdom(regdom, msg))
6255 goto nla_put_failure_rcu;
6256
6257 rcu_read_unlock();
f130347c
LR		 6258
6259 genlmsg_end(msg, hdr);
5fe231e8 6260 return genlmsg_reply(msg, info);
f130347c 6261
458f4f9e
JB		 6262nla_put_failure_rcu:
6263 rcu_read_unlock();
f130347c
LR		 6264nla_put_failure:
6265 genlmsg_cancel(msg, hdr);
efe1cf0c 6266put_failure:
d080e275 6267 nlmsg_free(msg);
5fe231e8 6268 return -EMSGSIZE;
f130347c
LR		 6269}
6270
ad30ca2c
AN		 6271static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
6272 u32 seq, int flags, struct wiphy *wiphy,
6273 const struct ieee80211_regdomain *regdom)
6274{
6275 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6276 NL80211_CMD_GET_REG);
6277
6278 if (!hdr)
6279 return -1;
6280
6281 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6282
6283 if (nl80211_put_regdom(regdom, msg))
6284 goto nla_put_failure;
6285
6286 if (!wiphy && reg_last_request_cell_base() &&
6287 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6288 NL80211_USER_REG_HINT_CELL_BASE))
6289 goto nla_put_failure;
6290
6291 if (wiphy &&
6292 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6293 goto nla_put_failure;
6294
1bdd716c
AN		 6295 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
6296 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
6297 goto nla_put_failure;
6298
053c095a
JB		 6299 genlmsg_end(msg, hdr);
6300 return 0;
ad30ca2c
AN		 6301
6302nla_put_failure:
6303 genlmsg_cancel(msg, hdr);
6304 return -EMSGSIZE;
6305}
6306
6307static int nl80211_get_reg_dump(struct sk_buff *skb,
6308 struct netlink_callback *cb)
6309{
6310 const struct ieee80211_regdomain *regdom = NULL;
6311 struct cfg80211_registered_device *rdev;
6312 int err, reg_idx, start = cb->args[2];
6313
6314 rtnl_lock();
6315
6316 if (cfg80211_regdomain && start == 0) {
6317 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6318 NLM_F_MULTI, NULL,
6319 rtnl_dereference(cfg80211_regdomain));
6320 if (err < 0)
6321 goto out_err;
6322 }
6323
6324 /* the global regdom is idx 0 */
6325 reg_idx = 1;
6326 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
6327 regdom = get_wiphy_regdom(&rdev->wiphy);
6328 if (!regdom)
6329 continue;
6330
6331 if (++reg_idx <= start)
6332 continue;
6333
6334 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6335 NLM_F_MULTI, &rdev->wiphy, regdom);
6336 if (err < 0) {
6337 reg_idx--;
6338 break;
6339 }
6340 }
6341
6342 cb->args[2] = reg_idx;
6343 err = skb->len;
6344out_err:
6345 rtnl_unlock();
6346 return err;
6347}
6348
b6863036
JB		 6349#ifdef CONFIG_CFG80211_CRDA_SUPPORT
6350static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
6351 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6352 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6353 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6354 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6355 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6356 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6357 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
6358};
6359
6360static int parse_reg_rule(struct nlattr *tb[],
6361 struct ieee80211_reg_rule *reg_rule)
6362{
6363 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
6364 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
6365
6366 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
6367 return -EINVAL;
6368 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
6369 return -EINVAL;
6370 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
6371 return -EINVAL;
6372 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6373 return -EINVAL;
6374 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6375 return -EINVAL;
6376
6377 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
6378
6379 freq_range->start_freq_khz =
6380 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
6381 freq_range->end_freq_khz =
6382 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
6383 freq_range->max_bandwidth_khz =
6384 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
6385
6386 power_rule->max_eirp =
6387 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
6388
6389 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
6390 power_rule->max_antenna_gain =
6391 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
6392
6393 if (tb[NL80211_ATTR_DFS_CAC_TIME])
6394 reg_rule->dfs_cac_ms =
6395 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
6396
6397 return 0;
6398}
6399
b2e1b302
LR		 6400static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
6401{
6402 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
6403 struct nlattr *nl_reg_rule;
ea372c54
JB		 6404 char *alpha2;
6405 int rem_reg_rules, r;
b2e1b302 6406 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 6407 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 6408 struct ieee80211_regdomain *rd;
b2e1b302
LR		 6409
6410 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6411 return -EINVAL;
6412
6413 if (!info->attrs[NL80211_ATTR_REG_RULES])
6414 return -EINVAL;
6415
6416 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6417
8b60b078
LR		 6418 if (info->attrs[NL80211_ATTR_DFS_REGION])
6419 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
6420
b2e1b302 6421 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6422 rem_reg_rules) {
b2e1b302
LR		 6423 num_rules++;
6424 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 6425 return -EINVAL;
b2e1b302
LR		 6426 }
6427
e438768f
LR		 6428 if (!reg_is_valid_request(alpha2))
6429 return -EINVAL;
6430
b2e1b302 6431 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 6432 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 6433
6434 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 6435 if (!rd)
6436 return -ENOMEM;
b2e1b302
LR		 6437
6438 rd->n_reg_rules = num_rules;
6439 rd->alpha2[0] = alpha2[0];
6440 rd->alpha2[1] = alpha2[1];
6441
8b60b078
LR		 6442 /*
6443 * Disable DFS master mode if the DFS region was
6444 * not supported or known on this kernel.
6445 */
6446 if (reg_supported_dfs_region(dfs_region))
6447 rd->dfs_region = dfs_region;
6448
b2e1b302 6449 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6450 rem_reg_rules) {
bfe2c7b1 6451 r = nla_parse_nested(tb, NL80211_REG_RULE_ATTR_MAX,
fe52145f
JB		 6452 nl_reg_rule, reg_rule_policy,
6453 info->extack);
ae811e21
JB		 6454 if (r)
6455 goto bad_reg;
b2e1b302
LR		 6456 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
6457 if (r)
6458 goto bad_reg;
6459
6460 rule_idx++;
6461
d0e18f83
LR		 6462 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
6463 r = -EINVAL;
b2e1b302 6464 goto bad_reg;
d0e18f83 6465 }
b2e1b302
LR		 6466 }
6467
06627990
JB		 6468 /* set_regdom takes ownership of rd */
6469 return set_regdom(rd, REGD_SOURCE_CRDA);
d2372b31 6470 bad_reg:
b2e1b302 6471 kfree(rd);
d0e18f83 6472 return r;
b2e1b302 6473}
b6863036 6474#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 6475
83f5e2cf
JB		 6476static int validate_scan_freqs(struct nlattr *freqs)
6477{
6478 struct nlattr *attr1, *attr2;
6479 int n_channels = 0, tmp1, tmp2;
6480
d7f13f74
SD		 6481 nla_for_each_nested(attr1, freqs, tmp1)
6482 if (nla_len(attr1) != sizeof(u32))
6483 return 0;
6484
83f5e2cf
JB		 6485 nla_for_each_nested(attr1, freqs, tmp1) {
6486 n_channels++;
6487 /*
6488 * Some hardware has a limited channel list for
6489 * scanning, and it is pretty much nonsensical
6490 * to scan for a channel twice, so disallow that
6491 * and don't require drivers to check that the
6492 * channel list they get isn't longer than what
6493 * they can scan, as long as they can scan all
6494 * the channels they registered at once.
6495 */
6496 nla_for_each_nested(attr2, freqs, tmp2)
6497 if (attr1 != attr2 &&
6498 nla_get_u32(attr1) == nla_get_u32(attr2))
6499 return 0;
6500 }
6501
6502 return n_channels;
6503}
6504
57fbcce3 6505static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
38de03d2 6506{
57fbcce3 6507 return b < NUM_NL80211_BANDS && wiphy->bands[b];
38de03d2
AS		 6508}
6509
6510static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6511 struct cfg80211_bss_selection *bss_select)
6512{
6513 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6514 struct nlattr *nest;
6515 int err;
6516 bool found = false;
6517 int i;
6518
6519 /* only process one nested attribute */
6520 nest = nla_data(nla);
6521 if (!nla_ok(nest, nla_len(nest)))
6522 return -EINVAL;
6523
bfe2c7b1 6524 err = nla_parse_nested(attr, NL80211_BSS_SELECT_ATTR_MAX, nest,
fceb6435 6525 nl80211_bss_select_policy, NULL);
38de03d2
AS		 6526 if (err)
6527 return err;
6528
6529 /* only one attribute may be given */
6530 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6531 if (attr[i]) {
6532 if (found)
6533 return -EINVAL;
6534 found = true;
6535 }
6536 }
6537
6538 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6539
6540 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6541 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6542
6543 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6544 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6545 bss_select->param.band_pref =
6546 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6547 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6548 return -EINVAL;
6549 }
6550
6551 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6552 struct nl80211_bss_select_rssi_adjust *adj_param;
6553
6554 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6555 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6556 bss_select->param.adjust.band = adj_param->band;
6557 bss_select->param.adjust.delta = adj_param->delta;
6558 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6559 return -EINVAL;
6560 }
6561
6562 /* user-space did not provide behaviour attribute */
6563 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6564 return -EINVAL;
6565
6566 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6567 return -EINVAL;
6568
6569 return 0;
6570}
6571
ad2b26ab
JB		 6572static int nl80211_parse_random_mac(struct nlattr **attrs,
6573 u8 *mac_addr, u8 *mac_addr_mask)
6574{
6575 int i;
6576
6577 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 6578 eth_zero_addr(mac_addr);
6579 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 6580 mac_addr[0] = 0x2;
6581 mac_addr_mask[0] = 0x3;
6582
6583 return 0;
6584 }
6585
6586 /* need both or none */
6587 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6588 return -EINVAL;
6589
6590 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6591 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6592
6593 /* don't allow or configure an mcast address */
6594 if (!is_multicast_ether_addr(mac_addr_mask) ||
6595 is_multicast_ether_addr(mac_addr))
6596 return -EINVAL;
6597
6598 /*
6599 * allow users to pass a MAC address that has bits set outside
6600 * of the mask, but don't bother drivers with having to deal
6601 * with such bits
6602 */
6603 for (i = 0; i < ETH_ALEN; i++)
6604 mac_addr[i] &= mac_addr_mask[i];
6605
6606 return 0;
6607}
6608
34373d12
VT		 6609static bool cfg80211_off_channel_oper_allowed(struct wireless_dev *wdev)
6610{
6611 ASSERT_WDEV_LOCK(wdev);
6612
6613 if (!cfg80211_beaconing_iface_active(wdev))
6614 return true;
6615
6616 if (!(wdev->chandef.chan->flags & IEEE80211_CHAN_RADAR))
6617 return true;
6618
6619 return regulatory_pre_cac_allowed(wdev->wiphy);
6620}
6621
2d23d073
RZ		 6622static int
6623nl80211_check_scan_flags(struct wiphy *wiphy, struct wireless_dev *wdev,
6624 void *request, struct nlattr **attrs,
6625 bool is_sched_scan)
6626{
6627 u8 *mac_addr, *mac_addr_mask;
6628 u32 *flags;
6629 enum nl80211_feature_flags randomness_flag;
6630
6631 if (!attrs[NL80211_ATTR_SCAN_FLAGS])
6632 return 0;
6633
6634 if (is_sched_scan) {
6635 struct cfg80211_sched_scan_request *req = request;
6636
6637 randomness_flag = wdev ?
6638 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR :
6639 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6640 flags = &req->flags;
6641 mac_addr = req->mac_addr;
6642 mac_addr_mask = req->mac_addr_mask;
6643 } else {
6644 struct cfg80211_scan_request *req = request;
6645
6646 randomness_flag = NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
6647 flags = &req->flags;
6648 mac_addr = req->mac_addr;
6649 mac_addr_mask = req->mac_addr_mask;
6650 }
6651
6652 *flags = nla_get_u32(attrs[NL80211_ATTR_SCAN_FLAGS]);
6653
6654 if ((*flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6655 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN))
6656 return -EOPNOTSUPP;
6657
6658 if (*flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6659 int err;
6660
6661 if (!(wiphy->features & randomness_flag) ||
6662 (wdev && wdev->current_bss))
6663 return -EOPNOTSUPP;
6664
6665 err = nl80211_parse_random_mac(attrs, mac_addr, mac_addr_mask);
6666 if (err)
6667 return err;
6668 }
6669
6670 if ((*flags & NL80211_SCAN_FLAG_FILS_MAX_CHANNEL_TIME) &&
6671 !wiphy_ext_feature_isset(wiphy,
6672 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME))
6673 return -EOPNOTSUPP;
6674
6675 if ((*flags & NL80211_SCAN_FLAG_ACCEPT_BCAST_PROBE_RESP) &&
6676 !wiphy_ext_feature_isset(wiphy,
6677 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP))
6678 return -EOPNOTSUPP;
6679
6680 if ((*flags & NL80211_SCAN_FLAG_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION) &&
6681 !wiphy_ext_feature_isset(wiphy,
6682 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION))
6683 return -EOPNOTSUPP;
6684
6685 if ((*flags & NL80211_SCAN_FLAG_OCE_PROBE_REQ_HIGH_TX_RATE) &&
6686 !wiphy_ext_feature_isset(wiphy,
6687 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE))
6688 return -EOPNOTSUPP;
6689
6690 return 0;
6691}
6692
2a519311
JB		 6693static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6694{
4c476991 6695 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 6696 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 6697 struct cfg80211_scan_request *request;
2a519311
JB		 6698 struct nlattr *attr;
6699 struct wiphy *wiphy;
83f5e2cf 6700 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 6701 size_t ie_len;
2a519311 6702
f4a11bb0
JB		 6703 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6704 return -EINVAL;
6705
79c97e97 6706 wiphy = &rdev->wiphy;
2a519311 6707
cb3b7d87
AB		 6708 if (wdev->iftype == NL80211_IFTYPE_NAN)
6709 return -EOPNOTSUPP;
6710
4c476991
JB		 6711 if (!rdev->ops->scan)
6712 return -EOPNOTSUPP;
2a519311 6713
f9d15d16 6714 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 6715 err = -EBUSY;
6716 goto unlock;
6717 }
2a519311
JB		 6718
6719 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 6720 n_channels = validate_scan_freqs(
6721 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 6722 if (!n_channels) {
6723 err = -EINVAL;
6724 goto unlock;
6725 }
2a519311 6726 } else {
bdfbec2d 6727 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 6728 }
6729
6730 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6731 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6732 n_ssids++;
6733
f9f47529
JB		 6734 if (n_ssids > wiphy->max_scan_ssids) {
6735 err = -EINVAL;
6736 goto unlock;
6737 }
2a519311 6738
70692ad2
JM		 6739 if (info->attrs[NL80211_ATTR_IE])
6740 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6741 else
6742 ie_len = 0;
6743
f9f47529
JB		 6744 if (ie_len > wiphy->max_scan_ie_len) {
6745 err = -EINVAL;
6746 goto unlock;
6747 }
18a83659 6748
2a519311 6749 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 6750 + sizeof(*request->ssids) * n_ssids
6751 + sizeof(*request->channels) * n_channels
70692ad2 6752 + ie_len, GFP_KERNEL);
f9f47529
JB		 6753 if (!request) {
6754 err = -ENOMEM;
6755 goto unlock;
6756 }
2a519311 6757
2a519311 6758 if (n_ssids)
5ba63533 6759 request->ssids = (void *)&request->channels[n_channels];
2a519311 6760 request->n_ssids = n_ssids;
70692ad2 6761 if (ie_len) {
13874e4b 6762 if (n_ssids)
70692ad2
JM		 6763 request->ie = (void *)(request->ssids + n_ssids);
6764 else
6765 request->ie = (void *)(request->channels + n_channels);
6766 }
2a519311 6767
584991dc 6768 i = 0;
2a519311
JB		 6769 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6770 /* user specified, bail out if channel not found */
2a519311 6771 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6772 struct ieee80211_channel *chan;
6773
6774 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6775
6776 if (!chan) {
2a519311
JB		 6777 err = -EINVAL;
6778 goto out_free;
6779 }
584991dc
JB		 6780
6781 /* ignore disabled channels */
6782 if (chan->flags & IEEE80211_CHAN_DISABLED)
6783 continue;
6784
6785 request->channels[i] = chan;
2a519311
JB		 6786 i++;
6787 }
6788 } else {
57fbcce3 6789 enum nl80211_band band;
34850ab2 6790
2a519311 6791 /* all channels */
57fbcce3 6792 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2a519311 6793 int j;
7a087e74 6794
2a519311
JB		 6795 if (!wiphy->bands[band])
6796 continue;
6797 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6798 struct ieee80211_channel *chan;
6799
6800 chan = &wiphy->bands[band]->channels[j];
6801
6802 if (chan->flags & IEEE80211_CHAN_DISABLED)
6803 continue;
6804
6805 request->channels[i] = chan;
2a519311
JB		 6806 i++;
6807 }
6808 }
6809 }
6810
584991dc
JB		 6811 if (!i) {
6812 err = -EINVAL;
6813 goto out_free;
6814 }
6815
6816 request->n_channels = i;
6817
34373d12
VT		 6818 wdev_lock(wdev);
6819 if (!cfg80211_off_channel_oper_allowed(wdev)) {
6820 struct ieee80211_channel *chan;
6821
6822 if (request->n_channels != 1) {
6823 wdev_unlock(wdev);
6824 err = -EBUSY;
6825 goto out_free;
6826 }
6827
6828 chan = request->channels[0];
6829 if (chan->center_freq != wdev->chandef.chan->center_freq) {
6830 wdev_unlock(wdev);
6831 err = -EBUSY;
6832 goto out_free;
6833 }
6834 }
6835 wdev_unlock(wdev);
6836
2a519311 6837 i = 0;
13874e4b 6838 if (n_ssids) {
2a519311 6839 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6840 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6841 err = -EINVAL;
6842 goto out_free;
6843 }
57a27e1d 6844 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6845 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6846 i++;
6847 }
6848 }
6849
70692ad2
JM		 6850 if (info->attrs[NL80211_ATTR_IE]) {
6851 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6852 memcpy((void *)request->ie,
6853 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6854 request->ie_len);
6855 }
6856
57fbcce3 6857 for (i = 0; i < NUM_NL80211_BANDS; i++)
a401d2bb
JB		 6858 if (wiphy->bands[i])
6859 request->rates[i] =
6860 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6861
6862 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6863 nla_for_each_nested(attr,
6864 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6865 tmp) {
57fbcce3 6866 enum nl80211_band band = nla_type(attr);
34850ab2 6867
57fbcce3 6868 if (band < 0 || band >= NUM_NL80211_BANDS) {
34850ab2
JB		 6869 err = -EINVAL;
6870 goto out_free;
6871 }
1b09cd82
FF		 6872
6873 if (!wiphy->bands[band])
6874 continue;
6875
34850ab2
JB		 6876 err = ieee80211_get_ratemask(wiphy->bands[band],
6877 nla_data(attr),
6878 nla_len(attr),
6879 &request->rates[band]);
6880 if (err)
6881 goto out_free;
6882 }
6883 }
6884
1d76250b
AS		 6885 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6886 if (!wiphy_ext_feature_isset(wiphy,
6887 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6888 err = -EOPNOTSUPP;
6889 goto out_free;
6890 }
6891
6892 request->duration =
6893 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6894 request->duration_mandatory =
6895 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6896 }
6897
2d23d073
RZ		 6898 err = nl80211_check_scan_flags(wiphy, wdev, request, info->attrs,
6899 false);
6900 if (err)
6901 goto out_free;
ed473771 6902
e9f935e3
RM		 6903 request->no_cck =
6904 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6905
2fa436b3
VK		 6906 /* Initial implementation used NL80211_ATTR_MAC to set the specific
6907 * BSSID to scan for. This was problematic because that same attribute
6908 * was already used for another purpose (local random MAC address). The
6909 * NL80211_ATTR_BSSID attribute was added to fix this. For backwards
6910 * compatibility with older userspace components, also use the
6911 * NL80211_ATTR_MAC value here if it can be determined to be used for
6912 * the specific BSSID use case instead of the random MAC address
6913 * (NL80211_ATTR_SCAN_FLAGS is used to enable random MAC address use).
6914 */
6915 if (info->attrs[NL80211_ATTR_BSSID])
6916 memcpy(request->bssid,
6917 nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN);
6918 else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) &&
6919 info->attrs[NL80211_ATTR_MAC])
818965d3
JM		 6920 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6921 ETH_ALEN);
6922 else
6923 eth_broadcast_addr(request->bssid);
6924
fd014284 6925 request->wdev = wdev;
79c97e97 6926 request->wiphy = &rdev->wiphy;
15d6030b 6927 request->scan_start = jiffies;
2a519311 6928
79c97e97 6929 rdev->scan_req = request;
e35e4d28 6930 err = rdev_scan(rdev, request);
2a519311 6931
463d0183 6932 if (!err) {
fd014284
JB		 6933 nl80211_send_scan_start(rdev, wdev);
6934 if (wdev->netdev)
6935 dev_hold(wdev->netdev);
4c476991 6936 } else {
2a519311 6937 out_free:
79c97e97 6938 rdev->scan_req = NULL;
2a519311
JB		 6939 kfree(request);
6940 }
3b85875a 6941
f9f47529 6942 unlock:
2a519311
JB		 6943 return err;
6944}
6945
91d3ab46
VK		 6946static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6947{
6948 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6949 struct wireless_dev *wdev = info->user_ptr[1];
6950
6951 if (!rdev->ops->abort_scan)
6952 return -EOPNOTSUPP;
6953
6954 if (rdev->scan_msg)
6955 return 0;
6956
6957 if (!rdev->scan_req)
6958 return -ENOENT;
6959
6960 rdev_abort_scan(rdev, wdev);
6961 return 0;
6962}
6963
3b06d277
AS		 6964static int
6965nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6966 struct cfg80211_sched_scan_request *request,
6967 struct nlattr **attrs)
6968{
6969 int tmp, err, i = 0;
6970 struct nlattr *attr;
6971
6972 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6973 u32 interval;
6974
6975 /*
6976 * If scan plans are not specified,
5a88de53 6977 * %NL80211_ATTR_SCHED_SCAN_INTERVAL will be specified. In this
3b06d277
AS		 6978 * case one scan plan will be set with the specified scan
6979 * interval and infinite number of iterations.
6980 */
3b06d277
AS		 6981 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6982 if (!interval)
6983 return -EINVAL;
6984
6985 request->scan_plans[0].interval =
6986 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6987 if (!request->scan_plans[0].interval)
6988 return -EINVAL;
6989
6990 if (request->scan_plans[0].interval >
6991 wiphy->max_sched_scan_plan_interval)
6992 request->scan_plans[0].interval =
6993 wiphy->max_sched_scan_plan_interval;
6994
6995 return 0;
6996 }
6997
6998 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6999 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
7000
7001 if (WARN_ON(i >= n_plans))
7002 return -EINVAL;
7003
bfe2c7b1 7004 err = nla_parse_nested(plan, NL80211_SCHED_SCAN_PLAN_MAX,
fceb6435 7005 attr, nl80211_plan_policy, NULL);
3b06d277
AS		 7006 if (err)
7007 return err;
7008
7009 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
7010 return -EINVAL;
7011
7012 request->scan_plans[i].interval =
7013 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
7014 if (!request->scan_plans[i].interval ||
7015 request->scan_plans[i].interval >
7016 wiphy->max_sched_scan_plan_interval)
7017 return -EINVAL;
7018
7019 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
7020 request->scan_plans[i].iterations =
7021 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
7022 if (!request->scan_plans[i].iterations ||
7023 (request->scan_plans[i].iterations >
7024 wiphy->max_sched_scan_plan_iterations))
7025 return -EINVAL;
7026 } else if (i < n_plans - 1) {
7027 /*
7028 * All scan plans but the last one must specify
7029 * a finite number of iterations
7030 */
7031 return -EINVAL;
7032 }
7033
7034 i++;
7035 }
7036
7037 /*
7038 * The last scan plan must not specify the number of
7039 * iterations, it is supposed to run infinitely
7040 */
7041 if (request->scan_plans[n_plans - 1].iterations)
7042 return -EINVAL;
7043
7044 return 0;
7045}
7046
256da02d 7047static struct cfg80211_sched_scan_request *
ad2b26ab 7048nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
aad1e812 7049 struct nlattr **attrs, int max_match_sets)
807f8a8c
LC		 7050{
7051 struct cfg80211_sched_scan_request *request;
807f8a8c 7052 struct nlattr *attr;
3b06d277 7053 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
57fbcce3 7054 enum nl80211_band band;
807f8a8c 7055 size_t ie_len;
a1f1c21c 7056 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 7057 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 7058
256da02d
LC		 7059 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
7060 return ERR_PTR(-EINVAL);
807f8a8c 7061
256da02d 7062 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 7063 n_channels = validate_scan_freqs(
256da02d 7064 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 7065 if (!n_channels)
256da02d 7066 return ERR_PTR(-EINVAL);
807f8a8c 7067 } else {
bdfbec2d 7068 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 7069 }
7070
256da02d
LC		 7071 if (attrs[NL80211_ATTR_SCAN_SSIDS])
7072 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 7073 tmp)
7074 n_ssids++;
7075
93b6aa69 7076 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 7077 return ERR_PTR(-EINVAL);
807f8a8c 7078
ea73cbce
JB		 7079 /*
7080 * First, count the number of 'real' matchsets. Due to an issue with
7081 * the old implementation, matchsets containing only the RSSI attribute
7082 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
7083 * RSSI for all matchsets, rather than their own matchset for reporting
7084 * all APs with a strong RSSI. This is needed to be compatible with
7085 * older userspace that treated a matchset with only the RSSI as the
7086 * global RSSI for all other matchsets - if there are other matchsets.
7087 */
256da02d 7088 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 7089 nla_for_each_nested(attr,
256da02d 7090 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 7091 tmp) {
7092 struct nlattr *rssi;
7093
bfe2c7b1
JB		 7094 err = nla_parse_nested(tb,
7095 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
fceb6435
JB		 7096 attr, nl80211_match_policy,
7097 NULL);
ea73cbce 7098 if (err)
256da02d 7099 return ERR_PTR(err);
3007e352
AVS		 7100
7101 /* SSID and BSSID are mutually exclusive */
7102 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] &&
7103 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID])
7104 return ERR_PTR(-EINVAL);
7105
ea73cbce 7106 /* add other standalone attributes here */
3007e352
AVS		 7107 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] ||
7108 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID]) {
ea73cbce
JB		 7109 n_match_sets++;
7110 continue;
7111 }
7112 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7113 if (rssi)
7114 default_match_rssi = nla_get_s32(rssi);
7115 }
7116 }
7117
7118 /* However, if there's no other matchset, add the RSSI one */
7119 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
7120 n_match_sets = 1;
a1f1c21c 7121
aad1e812 7122 if (n_match_sets > max_match_sets)
256da02d 7123 return ERR_PTR(-EINVAL);
a1f1c21c 7124
256da02d
LC		 7125 if (attrs[NL80211_ATTR_IE])
7126 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 7127 else
7128 ie_len = 0;
7129
5a865bad 7130 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 7131 return ERR_PTR(-EINVAL);
c10841ca 7132
3b06d277
AS		 7133 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
7134 /*
7135 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
7136 * each scan plan already specifies its own interval
7137 */
7138 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7139 return ERR_PTR(-EINVAL);
7140
7141 nla_for_each_nested(attr,
7142 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
7143 n_plans++;
7144 } else {
7145 /*
7146 * The scan interval attribute is kept for backward
7147 * compatibility. If no scan plans are specified and sched scan
7148 * interval is specified, one scan plan will be set with this
7149 * scan interval and infinite number of iterations.
7150 */
7151 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7152 return ERR_PTR(-EINVAL);
7153
7154 n_plans = 1;
7155 }
7156
7157 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
7158 return ERR_PTR(-EINVAL);
7159
bf95ecdb 7160 if (!wiphy_ext_feature_isset(
7161 wiphy, NL80211_EXT_FEATURE_SCHED_SCAN_RELATIVE_RSSI) &&
7162 (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] ||
7163 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]))
7164 return ERR_PTR(-EINVAL);
7165
807f8a8c 7166 request = kzalloc(sizeof(*request)
a2cd43c5 7167 + sizeof(*request->ssids) * n_ssids
a1f1c21c 7168 + sizeof(*request->match_sets) * n_match_sets
3b06d277 7169 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 7170 + sizeof(*request->channels) * n_channels
807f8a8c 7171 + ie_len, GFP_KERNEL);
256da02d
LC		 7172 if (!request)
7173 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 7174
7175 if (n_ssids)
7176 request->ssids = (void *)&request->channels[n_channels];
7177 request->n_ssids = n_ssids;
7178 if (ie_len) {
13874e4b 7179 if (n_ssids)
807f8a8c
LC		 7180 request->ie = (void *)(request->ssids + n_ssids);
7181 else
7182 request->ie = (void *)(request->channels + n_channels);
7183 }
7184
a1f1c21c
LC		 7185 if (n_match_sets) {
7186 if (request->ie)
7187 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 7188 else if (n_ssids)
a1f1c21c
LC		 7189 request->match_sets =
7190 (void *)(request->ssids + n_ssids);
7191 else
7192 request->match_sets =
7193 (void *)(request->channels + n_channels);
7194 }
7195 request->n_match_sets = n_match_sets;
7196
3b06d277
AS		 7197 if (n_match_sets)
7198 request->scan_plans = (void *)(request->match_sets +
7199 n_match_sets);
7200 else if (request->ie)
7201 request->scan_plans = (void *)(request->ie + ie_len);
7202 else if (n_ssids)
7203 request->scan_plans = (void *)(request->ssids + n_ssids);
7204 else
7205 request->scan_plans = (void *)(request->channels + n_channels);
7206
7207 request->n_scan_plans = n_plans;
7208
807f8a8c 7209 i = 0;
256da02d 7210 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 7211 /* user specified, bail out if channel not found */
7212 nla_for_each_nested(attr,
256da02d 7213 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 7214 tmp) {
7215 struct ieee80211_channel *chan;
7216
7217 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
7218
7219 if (!chan) {
7220 err = -EINVAL;
7221 goto out_free;
7222 }
7223
7224 /* ignore disabled channels */
7225 if (chan->flags & IEEE80211_CHAN_DISABLED)
7226 continue;
7227
7228 request->channels[i] = chan;
7229 i++;
7230 }
7231 } else {
7232 /* all channels */
57fbcce3 7233 for (band = 0; band < NUM_NL80211_BANDS; band++) {
807f8a8c 7234 int j;
7a087e74 7235
807f8a8c
LC		 7236 if (!wiphy->bands[band])
7237 continue;
7238 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
7239 struct ieee80211_channel *chan;
7240
7241 chan = &wiphy->bands[band]->channels[j];
7242
7243 if (chan->flags & IEEE80211_CHAN_DISABLED)
7244 continue;
7245
7246 request->channels[i] = chan;
7247 i++;
7248 }
7249 }
7250 }
7251
7252 if (!i) {
7253 err = -EINVAL;
7254 goto out_free;
7255 }
7256
7257 request->n_channels = i;
7258
7259 i = 0;
13874e4b 7260 if (n_ssids) {
256da02d 7261 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 7262 tmp) {
57a27e1d 7263 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 7264 err = -EINVAL;
7265 goto out_free;
7266 }
57a27e1d 7267 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 7268 memcpy(request->ssids[i].ssid, nla_data(attr),
7269 nla_len(attr));
807f8a8c
LC		 7270 i++;
7271 }
7272 }
7273
a1f1c21c 7274 i = 0;
256da02d 7275 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 7276 nla_for_each_nested(attr,
256da02d 7277 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 7278 tmp) {
3007e352 7279 struct nlattr *ssid, *bssid, *rssi;
a1f1c21c 7280
bfe2c7b1
JB		 7281 err = nla_parse_nested(tb,
7282 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
fceb6435
JB		 7283 attr, nl80211_match_policy,
7284 NULL);
ae811e21
JB		 7285 if (err)
7286 goto out_free;
4a4ab0d7 7287 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
3007e352
AVS		 7288 bssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID];
7289 if (ssid || bssid) {
ea73cbce
JB		 7290 if (WARN_ON(i >= n_match_sets)) {
7291 /* this indicates a programming error,
7292 * the loop above should have verified
7293 * things properly
7294 */
7295 err = -EINVAL;
7296 goto out_free;
7297 }
7298
3007e352
AVS		 7299 if (ssid) {
7300 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
7301 err = -EINVAL;
7302 goto out_free;
7303 }
7304 memcpy(request->match_sets[i].ssid.ssid,
7305 nla_data(ssid), nla_len(ssid));
7306 request->match_sets[i].ssid.ssid_len =
7307 nla_len(ssid);
7308 }
7309 if (bssid) {
7310 if (nla_len(bssid) != ETH_ALEN) {
7311 err = -EINVAL;
7312 goto out_free;
7313 }
7314 memcpy(request->match_sets[i].bssid,
7315 nla_data(bssid), ETH_ALEN);
a1f1c21c 7316 }
3007e352 7317
56ab364f 7318 /* special attribute - old implementation w/a */
ea73cbce
JB		 7319 request->match_sets[i].rssi_thold =
7320 default_match_rssi;
7321 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7322 if (rssi)
7323 request->match_sets[i].rssi_thold =
7324 nla_get_s32(rssi);
a1f1c21c
LC		 7325 }
7326 i++;
7327 }
ea73cbce
JB		 7328
7329 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 7330 if (i == 0 && n_match_sets)
ea73cbce
JB		 7331 request->match_sets[0].rssi_thold = default_match_rssi;
7332
7333 request->min_rssi_thold = INT_MAX;
7334 for (i = 0; i < n_match_sets; i++)
7335 request->min_rssi_thold =
7336 min(request->match_sets[i].rssi_thold,
7337 request->min_rssi_thold);
7338 } else {
7339 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 7340 }
7341
9900e484
JB		 7342 if (ie_len) {
7343 request->ie_len = ie_len;
807f8a8c 7344 memcpy((void *)request->ie,
256da02d 7345 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 7346 request->ie_len);
7347 }
7348
2d23d073
RZ		 7349 err = nl80211_check_scan_flags(wiphy, wdev, request, attrs, true);
7350 if (err)
7351 goto out_free;
ed473771 7352
9c748934
LC		 7353 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
7354 request->delay =
7355 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
7356
bf95ecdb 7357 if (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]) {
7358 request->relative_rssi = nla_get_s8(
7359 attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]);
7360 request->relative_rssi_set = true;
7361 }
7362
7363 if (request->relative_rssi_set &&
7364 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]) {
7365 struct nl80211_bss_select_rssi_adjust *rssi_adjust;
7366
7367 rssi_adjust = nla_data(
7368 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]);
7369 request->rssi_adjust.band = rssi_adjust->band;
7370 request->rssi_adjust.delta = rssi_adjust->delta;
7371 if (!is_band_valid(wiphy, request->rssi_adjust.band)) {
7372 err = -EINVAL;
7373 goto out_free;
7374 }
7375 }
7376
3b06d277
AS		 7377 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
7378 if (err)
7379 goto out_free;
7380
15d6030b 7381 request->scan_start = jiffies;
807f8a8c 7382
256da02d 7383 return request;
807f8a8c
LC		 7384
7385out_free:
7386 kfree(request);
256da02d
LC		 7387 return ERR_PTR(err);
7388}
7389
7390static int nl80211_start_sched_scan(struct sk_buff *skb,
7391 struct genl_info *info)
7392{
7393 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7394 struct net_device *dev = info->user_ptr[1];
ad2b26ab 7395 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 7396 struct cfg80211_sched_scan_request *sched_scan_req;
ca986ad9 7397 bool want_multi;
256da02d
LC		 7398 int err;
7399
ca986ad9 7400 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_start)
256da02d
LC		 7401 return -EOPNOTSUPP;
7402
ca986ad9
AVS		 7403 want_multi = info->attrs[NL80211_ATTR_SCHED_SCAN_MULTI];
7404 err = cfg80211_sched_scan_req_possible(rdev, want_multi);
7405 if (err)
7406 return err;
256da02d 7407
31a60ed1 7408 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
aad1e812
AVS		 7409 info->attrs,
7410 rdev->wiphy.max_match_sets);
31a60ed1
JR		 7411
7412 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 7413 if (err)
7414 goto out_err;
7415
ca986ad9
AVS		 7416 /* leave request id zero for legacy request
7417 * or if driver does not support multi-scheduled scan
7418 */
7419 if (want_multi && rdev->wiphy.max_sched_scan_reqs > 1) {
7420 while (!sched_scan_req->reqid)
7421 sched_scan_req->reqid = rdev->wiphy.cookie_counter++;
7422 }
7423
31a60ed1 7424 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 7425 if (err)
7426 goto out_free;
7427
31a60ed1
JR		 7428 sched_scan_req->dev = dev;
7429 sched_scan_req->wiphy = &rdev->wiphy;
7430
93a1e86c
JR		 7431 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
7432 sched_scan_req->owner_nlportid = info->snd_portid;
7433
ca986ad9 7434 cfg80211_add_sched_scan_req(rdev, sched_scan_req);
256da02d 7435
96b08fd6 7436 nl80211_send_sched_scan(sched_scan_req, NL80211_CMD_START_SCHED_SCAN);
256da02d
LC		 7437 return 0;
7438
7439out_free:
31a60ed1 7440 kfree(sched_scan_req);
256da02d 7441out_err:
807f8a8c
LC		 7442 return err;
7443}
7444
7445static int nl80211_stop_sched_scan(struct sk_buff *skb,
7446 struct genl_info *info)
7447{
ca986ad9 7448 struct cfg80211_sched_scan_request *req;
807f8a8c 7449 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ca986ad9 7450 u64 cookie;
807f8a8c 7451
ca986ad9 7452 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_stop)
807f8a8c
LC		 7453 return -EOPNOTSUPP;
7454
ca986ad9
AVS		 7455 if (info->attrs[NL80211_ATTR_COOKIE]) {
7456 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7457 return __cfg80211_stop_sched_scan(rdev, cookie, false);
7458 }
7459
7460 req = list_first_or_null_rcu(&rdev->sched_scan_req_list,
7461 struct cfg80211_sched_scan_request,
7462 list);
7463 if (!req || req->reqid ||
7464 (req->owner_nlportid &&
7465 req->owner_nlportid != info->snd_portid))
7466 return -ENOENT;
7467
7468 return cfg80211_stop_sched_scan_req(rdev, req, false);
807f8a8c
LC		 7469}
7470
04f39047
SW		 7471static int nl80211_start_radar_detection(struct sk_buff *skb,
7472 struct genl_info *info)
7473{
7474 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7475 struct net_device *dev = info->user_ptr[1];
7476 struct wireless_dev *wdev = dev->ieee80211_ptr;
7477 struct cfg80211_chan_def chandef;
55f7435c 7478 enum nl80211_dfs_regions dfs_region;
31559f35 7479 unsigned int cac_time_ms;
04f39047
SW		 7480 int err;
7481
55f7435c
LR		 7482 dfs_region = reg_get_dfs_region(wdev->wiphy);
7483 if (dfs_region == NL80211_DFS_UNSET)
7484 return -EINVAL;
7485
04f39047
SW		 7486 err = nl80211_parse_chandef(rdev, info, &chandef);
7487 if (err)
7488 return err;
7489
ff311bc1
SW		 7490 if (netif_carrier_ok(dev))
7491 return -EBUSY;
7492
04f39047
SW		 7493 if (wdev->cac_started)
7494 return -EBUSY;
7495
2beb6dab 7496 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 7497 wdev->iftype);
04f39047
SW		 7498 if (err < 0)
7499 return err;
7500
7501 if (err == 0)
7502 return -EINVAL;
7503
fe7c3a1f 7504 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 7505 return -EINVAL;
7506
7507 if (!rdev->ops->start_radar_detection)
7508 return -EOPNOTSUPP;
7509
31559f35
JD		 7510 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
7511 if (WARN_ON(!cac_time_ms))
7512 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
7513
a1056b1b 7514 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 7515 if (!err) {
9e0e2961 7516 wdev->chandef = chandef;
04f39047
SW		 7517 wdev->cac_started = true;
7518 wdev->cac_start_time = jiffies;
31559f35 7519 wdev->cac_time_ms = cac_time_ms;
04f39047 7520 }
04f39047
SW		 7521 return err;
7522}
7523
16ef1fe2
SW		 7524static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
7525{
7526 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7527 struct net_device *dev = info->user_ptr[1];
7528 struct wireless_dev *wdev = dev->ieee80211_ptr;
7529 struct cfg80211_csa_settings params;
7530 /* csa_attrs is defined static to avoid waste of stack size - this
7531 * function is called under RTNL lock, so this should not be a problem.
7532 */
7533 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 7534 int err;
ee4bc9e7 7535 bool need_new_beacon = false;
8d9de16f 7536 bool need_handle_dfs_flag = true;
9a774c78 7537 int len, i;
252e07ca 7538 u32 cs_count;
16ef1fe2
SW		 7539
7540 if (!rdev->ops->channel_switch ||
7541 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
7542 return -EOPNOTSUPP;
7543
ee4bc9e7
SW		 7544 switch (dev->ieee80211_ptr->iftype) {
7545 case NL80211_IFTYPE_AP:
7546 case NL80211_IFTYPE_P2P_GO:
7547 need_new_beacon = true;
8d9de16f
BB		 7548 /* For all modes except AP the handle_dfs flag needs to be
7549 * supplied to tell the kernel that userspace will handle radar
7550 * events when they happen. Otherwise a switch to a channel
7551 * requiring DFS will be rejected.
7552 */
7553 need_handle_dfs_flag = false;
ee4bc9e7
SW		 7554
7555 /* useless if AP is not running */
7556 if (!wdev->beacon_interval)
1ff79dfa 7557 return -ENOTCONN;
ee4bc9e7
SW		 7558 break;
7559 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 7560 if (!wdev->ssid_len)
7561 return -ENOTCONN;
7562 break;
c6da674a 7563 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 7564 if (!wdev->mesh_id_len)
7565 return -ENOTCONN;
ee4bc9e7
SW		 7566 break;
7567 default:
16ef1fe2 7568 return -EOPNOTSUPP;
ee4bc9e7 7569 }
16ef1fe2
SW		 7570
7571 memset(&params, 0, sizeof(params));
7572
7573 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7574 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
7575 return -EINVAL;
7576
7577 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 7578 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 7579 return -EINVAL;
7580
252e07ca
LC		 7581 /* Even though the attribute is u32, the specification says
7582 * u8, so let's make sure we don't overflow.
7583 */
7584 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
7585 if (cs_count > 255)
7586 return -EINVAL;
7587
7588 params.count = cs_count;
16ef1fe2 7589
ee4bc9e7
SW		 7590 if (!need_new_beacon)
7591 goto skip_beacons;
7592
16ef1fe2
SW		 7593 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
7594 if (err)
7595 return err;
7596
7597 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
7598 info->attrs[NL80211_ATTR_CSA_IES],
fe52145f 7599 nl80211_policy, info->extack);
16ef1fe2
SW		 7600 if (err)
7601 return err;
7602
7603 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
7604 if (err)
7605 return err;
7606
7607 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
7608 return -EINVAL;
7609
9a774c78
AO		 7610 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7611 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7612 return -EINVAL;
7613
9a774c78
AO		 7614 params.n_counter_offsets_beacon = len / sizeof(u16);
7615 if (rdev->wiphy.max_num_csa_counters &&
7616 (params.n_counter_offsets_beacon >
7617 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 7618 return -EINVAL;
7619
9a774c78
AO		 7620 params.counter_offsets_beacon =
7621 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7622
7623 /* sanity checks - counters should fit and be the same */
7624 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7625 u16 offset = params.counter_offsets_beacon[i];
7626
7627 if (offset >= params.beacon_csa.tail_len)
7628 return -EINVAL;
7629
7630 if (params.beacon_csa.tail[offset] != params.count)
7631 return -EINVAL;
7632 }
7633
16ef1fe2 7634 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 7635 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7636 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7637 return -EINVAL;
7638
9a774c78
AO		 7639 params.n_counter_offsets_presp = len / sizeof(u16);
7640 if (rdev->wiphy.max_num_csa_counters &&
ad5987b4 7641 (params.n_counter_offsets_presp >
9a774c78 7642 rdev->wiphy.max_num_csa_counters))
16ef1fe2 7643 return -EINVAL;
9a774c78
AO		 7644
7645 params.counter_offsets_presp =
7646 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7647
7648 /* sanity checks - counters should fit and be the same */
7649 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7650 u16 offset = params.counter_offsets_presp[i];
7651
7652 if (offset >= params.beacon_csa.probe_resp_len)
7653 return -EINVAL;
7654
7655 if (params.beacon_csa.probe_resp[offset] !=
7656 params.count)
7657 return -EINVAL;
7658 }
16ef1fe2
SW		 7659 }
7660
ee4bc9e7 7661skip_beacons:
16ef1fe2
SW		 7662 err = nl80211_parse_chandef(rdev, info, &params.chandef);
7663 if (err)
7664 return err;
7665
923b352f
AN		 7666 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
7667 wdev->iftype))
16ef1fe2
SW		 7668 return -EINVAL;
7669
2beb6dab
LC		 7670 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7671 &params.chandef,
7672 wdev->iftype);
7673 if (err < 0)
7674 return err;
7675
8d9de16f 7676 if (err > 0) {
2beb6dab 7677 params.radar_required = true;
8d9de16f
BB		 7678 if (need_handle_dfs_flag &&
7679 !nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS])) {
7680 return -EINVAL;
7681 }
7682 }
16ef1fe2 7683
16ef1fe2
SW		 7684 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7685 params.block_tx = true;
7686
c56589ed
SW		 7687 wdev_lock(wdev);
7688 err = rdev_channel_switch(rdev, dev, &params);
7689 wdev_unlock(wdev);
7690
7691 return err;
16ef1fe2
SW		 7692}
7693
9720bb3a
JB		 7694static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7695 u32 seq, int flags,
2a519311 7696 struct cfg80211_registered_device *rdev,
48ab905d
JB		 7697 struct wireless_dev *wdev,
7698 struct cfg80211_internal_bss *intbss)
2a519311 7699{
48ab905d 7700 struct cfg80211_bss *res = &intbss->pub;
9caf0364 7701 const struct cfg80211_bss_ies *ies;
2a519311
JB		 7702 void *hdr;
7703 struct nlattr *bss;
48ab905d
JB		 7704
7705 ASSERT_WDEV_LOCK(wdev);
2a519311 7706
15e47304 7707 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 7708 NL80211_CMD_NEW_SCAN_RESULTS);
7709 if (!hdr)
7710 return -1;
7711
9720bb3a
JB		 7712 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7713
97990a06
JB		 7714 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7715 goto nla_put_failure;
7716 if (wdev->netdev &&
9360ffd1
DM		 7717 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7718 goto nla_put_failure;
2dad624e
ND		 7719 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7720 NL80211_ATTR_PAD))
97990a06 7721 goto nla_put_failure;
2a519311
JB		 7722
7723 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7724 if (!bss)
7725 goto nla_put_failure;
9360ffd1 7726 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 7727 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 7728 goto nla_put_failure;
9caf0364
JB		 7729
7730 rcu_read_lock();
0e227084
JB		 7731 /* indicate whether we have probe response data or not */
7732 if (rcu_access_pointer(res->proberesp_ies) &&
7733 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7734 goto fail_unlock_rcu;
7735
7736 /* this pointer prefers to be pointed to probe response data
7737 * but is always valid
7738 */
9caf0364 7739 ies = rcu_dereference(res->ies);
8cef2c9d 7740 if (ies) {
2dad624e
ND		 7741 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7742 NL80211_BSS_PAD))
8cef2c9d 7743 goto fail_unlock_rcu;
8cef2c9d
JB		 7744 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7745 ies->len, ies->data))
7746 goto fail_unlock_rcu;
9caf0364 7747 }
0e227084
JB		 7748
7749 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 7750 ies = rcu_dereference(res->beacon_ies);
0e227084 7751 if (ies && ies->from_beacon) {
2dad624e
ND		 7752 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7753 NL80211_BSS_PAD))
8cef2c9d
JB		 7754 goto fail_unlock_rcu;
7755 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7756 ies->len, ies->data))
7757 goto fail_unlock_rcu;
9caf0364
JB		 7758 }
7759 rcu_read_unlock();
7760
9360ffd1
DM		 7761 if (res->beacon_interval &&
7762 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7763 goto nla_put_failure;
7764 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7765 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 7766 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 7767 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7768 jiffies_to_msecs(jiffies - intbss->ts)))
7769 goto nla_put_failure;
2a519311 7770
1d76250b
AS		 7771 if (intbss->parent_tsf &&
7772 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7773 intbss->parent_tsf, NL80211_BSS_PAD) ||
7774 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7775 intbss->parent_bssid)))
7776 goto nla_put_failure;
7777
6e19bc4b 7778 if (intbss->ts_boottime &&
2dad624e
ND		 7779 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7780 intbss->ts_boottime, NL80211_BSS_PAD))
6e19bc4b
DS		 7781 goto nla_put_failure;
7782
77965c97 7783 switch (rdev->wiphy.signal_type) {
2a519311 7784 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 7785 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7786 goto nla_put_failure;
2a519311
JB		 7787 break;
7788 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 7789 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7790 goto nla_put_failure;
2a519311
JB		 7791 break;
7792 default:
7793 break;
7794 }
7795
48ab905d 7796 switch (wdev->iftype) {
074ac8df 7797 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 7798 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 7799 if (intbss == wdev->current_bss &&
7800 nla_put_u32(msg, NL80211_BSS_STATUS,
7801 NL80211_BSS_STATUS_ASSOCIATED))
7802 goto nla_put_failure;
48ab905d
JB		 7803 break;
7804 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 7805 if (intbss == wdev->current_bss &&
7806 nla_put_u32(msg, NL80211_BSS_STATUS,
7807 NL80211_BSS_STATUS_IBSS_JOINED))
7808 goto nla_put_failure;
48ab905d
JB		 7809 break;
7810 default:
7811 break;
7812 }
7813
2a519311
JB		 7814 nla_nest_end(msg, bss);
7815
053c095a
JB		 7816 genlmsg_end(msg, hdr);
7817 return 0;
2a519311 7818
8cef2c9d
JB		 7819 fail_unlock_rcu:
7820 rcu_read_unlock();
2a519311
JB		 7821 nla_put_failure:
7822 genlmsg_cancel(msg, hdr);
7823 return -EMSGSIZE;
7824}
7825
97990a06 7826static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 7827{
48ab905d 7828 struct cfg80211_registered_device *rdev;
2a519311 7829 struct cfg80211_internal_bss *scan;
48ab905d 7830 struct wireless_dev *wdev;
97990a06 7831 int start = cb->args[2], idx = 0;
2a519311
JB		 7832 int err;
7833
ea90e0dc 7834 rtnl_lock();
97990a06 7835 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
ea90e0dc
JB		 7836 if (err) {
7837 rtnl_unlock();
67748893 7838 return err;
ea90e0dc 7839 }
2a519311 7840
48ab905d
JB		 7841 wdev_lock(wdev);
7842 spin_lock_bh(&rdev->bss_lock);
7843 cfg80211_bss_expire(rdev);
7844
9720bb3a
JB		 7845 cb->seq = rdev->bss_generation;
7846
48ab905d 7847 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 7848 if (++idx <= start)
7849 continue;
9720bb3a 7850 if (nl80211_send_bss(skb, cb,
2a519311 7851 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 7852 rdev, wdev, scan) < 0) {
2a519311 7853 idx--;
67748893 7854 break;
2a519311
JB		 7855 }
7856 }
7857
48ab905d
JB		 7858 spin_unlock_bh(&rdev->bss_lock);
7859 wdev_unlock(wdev);
2a519311 7860
97990a06 7861 cb->args[2] = idx;
ea90e0dc 7862 rtnl_unlock();
2a519311 7863
67748893 7864 return skb->len;
2a519311
JB		 7865}
7866
15e47304 7867static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7868 int flags, struct net_device *dev,
7869 bool allow_radio_stats,
7870 struct survey_info *survey)
61fa713c
HS		 7871{
7872 void *hdr;
7873 struct nlattr *infoattr;
7874
11f78ac3
JB		 7875 /* skip radio stats if userspace didn't request them */
7876 if (!survey->channel && !allow_radio_stats)
7877 return 0;
7878
15e47304 7879 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7880 NL80211_CMD_NEW_SURVEY_RESULTS);
7881 if (!hdr)
7882 return -ENOMEM;
7883
9360ffd1
DM		 7884 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7885 goto nla_put_failure;
61fa713c
HS		 7886
7887 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7888 if (!infoattr)
7889 goto nla_put_failure;
7890
11f78ac3
JB		 7891 if (survey->channel &&
7892 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7893 survey->channel->center_freq))
7894 goto nla_put_failure;
7895
7896 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7897 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7898 goto nla_put_failure;
7899 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7900 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7901 goto nla_put_failure;
4ed20beb 7902 if ((survey->filled & SURVEY_INFO_TIME) &&
2dad624e
ND		 7903 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7904 survey->time, NL80211_SURVEY_INFO_PAD))
9360ffd1 7905 goto nla_put_failure;
4ed20beb 7906 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
2dad624e
ND		 7907 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7908 survey->time_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7909 goto nla_put_failure;
4ed20beb 7910 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
2dad624e
ND		 7911 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7912 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7913 goto nla_put_failure;
4ed20beb 7914 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
2dad624e
ND		 7915 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7916 survey->time_rx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7917 goto nla_put_failure;
4ed20beb 7918 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
2dad624e
ND		 7919 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7920 survey->time_tx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7921 goto nla_put_failure;
052536ab 7922 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
2dad624e
ND		 7923 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7924 survey->time_scan, NL80211_SURVEY_INFO_PAD))
052536ab 7925 goto nla_put_failure;
61fa713c
HS		 7926
7927 nla_nest_end(msg, infoattr);
7928
053c095a
JB		 7929 genlmsg_end(msg, hdr);
7930 return 0;
61fa713c
HS		 7931
7932 nla_put_failure:
7933 genlmsg_cancel(msg, hdr);
7934 return -EMSGSIZE;
7935}
7936
11f78ac3 7937static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c 7938{
c90c39da 7939 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
61fa713c 7940 struct survey_info survey;
1b8ec87a 7941 struct cfg80211_registered_device *rdev;
97990a06
JB		 7942 struct wireless_dev *wdev;
7943 int survey_idx = cb->args[2];
61fa713c 7944 int res;
11f78ac3 7945 bool radio_stats;
61fa713c 7946
ea90e0dc 7947 rtnl_lock();
1b8ec87a 7948 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893 7949 if (res)
ea90e0dc 7950 goto out_err;
61fa713c 7951
11f78ac3 7952 /* prepare_wdev_dump parsed the attributes */
c90c39da 7953 radio_stats = attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
11f78ac3 7954
97990a06
JB		 7955 if (!wdev->netdev) {
7956 res = -EINVAL;
7957 goto out_err;
7958 }
7959
1b8ec87a 7960 if (!rdev->ops->dump_survey) {
61fa713c
HS		 7961 res = -EOPNOTSUPP;
7962 goto out_err;
7963 }
7964
7965 while (1) {
1b8ec87a 7966 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 7967 if (res == -ENOENT)
7968 break;
7969 if (res)
7970 goto out_err;
7971
11f78ac3
JB		 7972 /* don't send disabled channels, but do send non-channel data */
7973 if (survey.channel &&
7974 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 7975 survey_idx++;
7976 continue;
7977 }
7978
61fa713c 7979 if (nl80211_send_survey(skb,
15e47304 7980 NETLINK_CB(cb->skb).portid,
61fa713c 7981 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 7982 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 7983 goto out;
7984 survey_idx++;
7985 }
7986
7987 out:
97990a06 7988 cb->args[2] = survey_idx;
61fa713c
HS		 7989 res = skb->len;
7990 out_err:
ea90e0dc 7991 rtnl_unlock();
61fa713c
HS		 7992 return res;
7993}
7994
b23aa676
SO		 7995static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7996{
7997 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7998 NL80211_WPA_VERSION_2));
7999}
8000
636a5d36
JM		 8001static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
8002{
4c476991
JB		 8003 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8004 struct net_device *dev = info->user_ptr[1];
19957bb3 8005 struct ieee80211_channel *chan;
11b6b5a4
JM		 8006 const u8 *bssid, *ssid, *ie = NULL, *auth_data = NULL;
8007 int err, ssid_len, ie_len = 0, auth_data_len = 0;
19957bb3 8008 enum nl80211_auth_type auth_type;
fffd0934 8009 struct key_parse key;
d5cdfacb 8010 bool local_state_change;
636a5d36 8011
f4a11bb0
JB		 8012 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8013 return -EINVAL;
8014
8015 if (!info->attrs[NL80211_ATTR_MAC])
8016 return -EINVAL;
8017
1778092e
JM		 8018 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
8019 return -EINVAL;
8020
19957bb3
JB		 8021 if (!info->attrs[NL80211_ATTR_SSID])
8022 return -EINVAL;
8023
8024 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8025 return -EINVAL;
8026
fffd0934
JB		 8027 err = nl80211_parse_key(info, &key);
8028 if (err)
8029 return err;
8030
8031 if (key.idx >= 0) {
e31b8213
JB		 8032 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
8033 return -EINVAL;
fffd0934
JB		 8034 if (!key.p.key || !key.p.key_len)
8035 return -EINVAL;
8036 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
8037 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
8038 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
8039 key.p.key_len != WLAN_KEY_LEN_WEP104))
8040 return -EINVAL;
b6b5555b 8041 if (key.idx > 3)
fffd0934
JB		 8042 return -EINVAL;
8043 } else {
8044 key.p.key_len = 0;
8045 key.p.key = NULL;
8046 }
8047
afea0b7a
JB		 8048 if (key.idx >= 0) {
8049 int i;
8050 bool ok = false;
7a087e74 8051
afea0b7a
JB		 8052 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
8053 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
8054 ok = true;
8055 break;
8056 }
8057 }
4c476991
JB		 8058 if (!ok)
8059 return -EINVAL;
afea0b7a
JB		 8060 }
8061
4c476991
JB		 8062 if (!rdev->ops->auth)
8063 return -EOPNOTSUPP;
636a5d36 8064
074ac8df 8065 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8066 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8067 return -EOPNOTSUPP;
eec60b03 8068
19957bb3 8069 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 8070 chan = nl80211_get_valid_chan(&rdev->wiphy,
8071 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8072 if (!chan)
4c476991 8073 return -EINVAL;
636a5d36 8074
19957bb3
JB		 8075 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8076 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 8077
8078 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8079 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8080 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8081 }
8082
19957bb3 8083 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 8084 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 8085 return -EINVAL;
636a5d36 8086
63181060
JM		 8087 if ((auth_type == NL80211_AUTHTYPE_SAE ||
8088 auth_type == NL80211_AUTHTYPE_FILS_SK ||
8089 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
8090 auth_type == NL80211_AUTHTYPE_FILS_PK) &&
11b6b5a4 8091 !info->attrs[NL80211_ATTR_AUTH_DATA])
e39e5b5e
JM		 8092 return -EINVAL;
8093
11b6b5a4 8094 if (info->attrs[NL80211_ATTR_AUTH_DATA]) {
63181060
JM		 8095 if (auth_type != NL80211_AUTHTYPE_SAE &&
8096 auth_type != NL80211_AUTHTYPE_FILS_SK &&
8097 auth_type != NL80211_AUTHTYPE_FILS_SK_PFS &&
8098 auth_type != NL80211_AUTHTYPE_FILS_PK)
e39e5b5e 8099 return -EINVAL;
11b6b5a4
JM		 8100 auth_data = nla_data(info->attrs[NL80211_ATTR_AUTH_DATA]);
8101 auth_data_len = nla_len(info->attrs[NL80211_ATTR_AUTH_DATA]);
e39e5b5e 8102 /* need to include at least Auth Transaction and Status Code */
11b6b5a4 8103 if (auth_data_len < 4)
e39e5b5e
JM		 8104 return -EINVAL;
8105 }
8106
d5cdfacb
JM		 8107 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8108
95de817b
JB		 8109 /*
8110 * Since we no longer track auth state, ignore
8111 * requests to only change local state.
8112 */
8113 if (local_state_change)
8114 return 0;
8115
91bf9b26
JB		 8116 wdev_lock(dev->ieee80211_ptr);
8117 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
8118 ssid, ssid_len, ie, ie_len,
8119 key.p.key, key.p.key_len, key.idx,
11b6b5a4 8120 auth_data, auth_data_len);
91bf9b26
JB		 8121 wdev_unlock(dev->ieee80211_ptr);
8122 return err;
636a5d36
JM		 8123}
8124
c0692b8f
JB		 8125static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
8126 struct genl_info *info,
3dc27d25
JB		 8127 struct cfg80211_crypto_settings *settings,
8128 int cipher_limit)
b23aa676 8129{
c0b2bbd8
JB		 8130 memset(settings, 0, sizeof(*settings));
8131
b23aa676
SO		 8132 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
8133
c0692b8f
JB		 8134 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
8135 u16 proto;
7a087e74 8136
c0692b8f
JB		 8137 proto = nla_get_u16(
8138 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
8139 settings->control_port_ethertype = cpu_to_be16(proto);
8140 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
8141 proto != ETH_P_PAE)
8142 return -EINVAL;
8143 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
8144 settings->control_port_no_encrypt = true;
8145 } else
8146 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
8147
b23aa676
SO		 8148 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
8149 void *data;
8150 int len, i;
8151
8152 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8153 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8154 settings->n_ciphers_pairwise = len / sizeof(u32);
8155
8156 if (len % sizeof(u32))
8157 return -EINVAL;
8158
3dc27d25 8159 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 8160 return -EINVAL;
8161
8162 memcpy(settings->ciphers_pairwise, data, len);
8163
8164 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 8165 if (!cfg80211_supported_cipher_suite(
8166 &rdev->wiphy,
b23aa676
SO		 8167 settings->ciphers_pairwise[i]))
8168 return -EINVAL;
8169 }
8170
8171 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
8172 settings->cipher_group =
8173 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 8174 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
8175 settings->cipher_group))
b23aa676
SO		 8176 return -EINVAL;
8177 }
8178
8179 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
8180 settings->wpa_versions =
8181 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
8182 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
8183 return -EINVAL;
8184 }
8185
8186 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
8187 void *data;
6d30240e 8188 int len;
b23aa676
SO		 8189
8190 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
8191 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
8192 settings->n_akm_suites = len / sizeof(u32);
8193
8194 if (len % sizeof(u32))
8195 return -EINVAL;
8196
1b9ca027
JM		 8197 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
8198 return -EINVAL;
8199
b23aa676 8200 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 8201 }
8202
91b5ab62
EP		 8203 if (info->attrs[NL80211_ATTR_PMK]) {
8204 if (nla_len(info->attrs[NL80211_ATTR_PMK]) != WLAN_PMK_LEN)
8205 return -EINVAL;
8206 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8207 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK))
8208 return -EINVAL;
8209 settings->psk = nla_data(info->attrs[NL80211_ATTR_PMK]);
8210 }
8211
b23aa676
SO		 8212 return 0;
8213}
8214
636a5d36
JM		 8215static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
8216{
4c476991
JB		 8217 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8218 struct net_device *dev = info->user_ptr[1];
f444de05 8219 struct ieee80211_channel *chan;
f62fab73
JB		 8220 struct cfg80211_assoc_request req = {};
8221 const u8 *bssid, *ssid;
8222 int err, ssid_len = 0;
636a5d36 8223
f4a11bb0
JB		 8224 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8225 return -EINVAL;
8226
8227 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 8228 !info->attrs[NL80211_ATTR_SSID] ||
8229 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 8230 return -EINVAL;
8231
4c476991
JB		 8232 if (!rdev->ops->assoc)
8233 return -EOPNOTSUPP;
636a5d36 8234
074ac8df 8235 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8236 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8237 return -EOPNOTSUPP;
eec60b03 8238
19957bb3 8239 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8240
664834de
JM		 8241 chan = nl80211_get_valid_chan(&rdev->wiphy,
8242 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8243 if (!chan)
4c476991 8244 return -EINVAL;
636a5d36 8245
19957bb3
JB		 8246 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8247 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 8248
8249 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 8250 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8251 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8252 }
8253
dc6382ce 8254 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 8255 enum nl80211_mfp mfp =
dc6382ce 8256 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 8257 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 8258 req.use_mfp = true;
4c476991
JB		 8259 else if (mfp != NL80211_MFP_NO)
8260 return -EINVAL;
dc6382ce
JM		 8261 }
8262
3e5d7649 8263 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 8264 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 8265
7e7c8926 8266 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 8267 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 8268
8269 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 8270 memcpy(&req.ht_capa_mask,
8271 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8272 sizeof(req.ht_capa_mask));
7e7c8926
BG		 8273
8274 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 8275 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 8276 return -EINVAL;
f62fab73
JB		 8277 memcpy(&req.ht_capa,
8278 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8279 sizeof(req.ht_capa));
7e7c8926
BG		 8280 }
8281
ee2aca34 8282 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 8283 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 8284
8285 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 8286 memcpy(&req.vht_capa_mask,
8287 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8288 sizeof(req.vht_capa_mask));
ee2aca34
JB		 8289
8290 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 8291 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 8292 return -EINVAL;
f62fab73
JB		 8293 memcpy(&req.vht_capa,
8294 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8295 sizeof(req.vht_capa));
ee2aca34
JB		 8296 }
8297
bab5ab7d 8298 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8299 if (!((rdev->wiphy.features &
8300 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8301 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8302 !wiphy_ext_feature_isset(&rdev->wiphy,
8303 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 8304 return -EINVAL;
8305 req.flags |= ASSOC_REQ_USE_RRM;
8306 }
8307
348bd456
JM		 8308 if (info->attrs[NL80211_ATTR_FILS_KEK]) {
8309 req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
8310 req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
8311 if (!info->attrs[NL80211_ATTR_FILS_NONCES])
8312 return -EINVAL;
8313 req.fils_nonces =
8314 nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
8315 }
8316
f62fab73 8317 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 8318 if (!err) {
8319 wdev_lock(dev->ieee80211_ptr);
bd2522b1 8320
f62fab73
JB		 8321 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
8322 ssid, ssid_len, &req);
bd2522b1
AZ		 8323
8324 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8325 dev->ieee80211_ptr->conn_owner_nlportid =
8326 info->snd_portid;
8327 memcpy(dev->ieee80211_ptr->disconnect_bssid,
8328 bssid, ETH_ALEN);
8329 }
8330
91bf9b26
JB		 8331 wdev_unlock(dev->ieee80211_ptr);
8332 }
636a5d36 8333
636a5d36
JM		 8334 return err;
8335}
8336
8337static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
8338{
4c476991
JB		 8339 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8340 struct net_device *dev = info->user_ptr[1];
19957bb3 8341 const u8 *ie = NULL, *bssid;
91bf9b26 8342 int ie_len = 0, err;
19957bb3 8343 u16 reason_code;
d5cdfacb 8344 bool local_state_change;
636a5d36 8345
f4a11bb0
JB		 8346 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8347 return -EINVAL;
8348
8349 if (!info->attrs[NL80211_ATTR_MAC])
8350 return -EINVAL;
8351
8352 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8353 return -EINVAL;
8354
4c476991
JB		 8355 if (!rdev->ops->deauth)
8356 return -EOPNOTSUPP;
636a5d36 8357
074ac8df 8358 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8359 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8360 return -EOPNOTSUPP;
eec60b03 8361
19957bb3 8362 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8363
19957bb3
JB		 8364 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8365 if (reason_code == 0) {
f4a11bb0 8366 /* Reason Code 0 is reserved */
4c476991 8367 return -EINVAL;
255e737e 8368 }
636a5d36
JM		 8369
8370 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8371 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8372 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8373 }
8374
d5cdfacb
JM		 8375 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8376
91bf9b26
JB		 8377 wdev_lock(dev->ieee80211_ptr);
8378 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
8379 local_state_change);
8380 wdev_unlock(dev->ieee80211_ptr);
8381 return err;
636a5d36
JM		 8382}
8383
8384static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
8385{
4c476991
JB		 8386 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8387 struct net_device *dev = info->user_ptr[1];
19957bb3 8388 const u8 *ie = NULL, *bssid;
91bf9b26 8389 int ie_len = 0, err;
19957bb3 8390 u16 reason_code;
d5cdfacb 8391 bool local_state_change;
636a5d36 8392
f4a11bb0
JB		 8393 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8394 return -EINVAL;
8395
8396 if (!info->attrs[NL80211_ATTR_MAC])
8397 return -EINVAL;
8398
8399 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8400 return -EINVAL;
8401
4c476991
JB		 8402 if (!rdev->ops->disassoc)
8403 return -EOPNOTSUPP;
636a5d36 8404
074ac8df 8405 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8406 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8407 return -EOPNOTSUPP;
eec60b03 8408
19957bb3 8409 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8410
19957bb3
JB		 8411 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8412 if (reason_code == 0) {
f4a11bb0 8413 /* Reason Code 0 is reserved */
4c476991 8414 return -EINVAL;
255e737e 8415 }
636a5d36
JM		 8416
8417 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8418 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8419 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8420 }
8421
d5cdfacb
JM		 8422 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8423
91bf9b26
JB		 8424 wdev_lock(dev->ieee80211_ptr);
8425 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
8426 local_state_change);
8427 wdev_unlock(dev->ieee80211_ptr);
8428 return err;
636a5d36
JM		 8429}
8430
dd5b4cc7
FF		 8431static bool
8432nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
57fbcce3 8433 int mcast_rate[NUM_NL80211_BANDS],
dd5b4cc7
FF		 8434 int rateval)
8435{
8436 struct wiphy *wiphy = &rdev->wiphy;
8437 bool found = false;
8438 int band, i;
8439
57fbcce3 8440 for (band = 0; band < NUM_NL80211_BANDS; band++) {
dd5b4cc7
FF		 8441 struct ieee80211_supported_band *sband;
8442
8443 sband = wiphy->bands[band];
8444 if (!sband)
8445 continue;
8446
8447 for (i = 0; i < sband->n_bitrates; i++) {
8448 if (sband->bitrates[i].bitrate == rateval) {
8449 mcast_rate[band] = i + 1;
8450 found = true;
8451 break;
8452 }
8453 }
8454 }
8455
8456 return found;
8457}
8458
04a773ad
JB		 8459static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
8460{
4c476991
JB		 8461 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8462 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 8463 struct cfg80211_ibss_params ibss;
8464 struct wiphy *wiphy;
fffd0934 8465 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 8466 int err;
8467
8e30bc55
JB		 8468 memset(&ibss, 0, sizeof(ibss));
8469
04a773ad
JB		 8470 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8471 return -EINVAL;
8472
683b6d3b 8473 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 8474 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8475 return -EINVAL;
8476
8e30bc55
JB		 8477 ibss.beacon_interval = 100;
8478
12d20fc9 8479 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8e30bc55
JB		 8480 ibss.beacon_interval =
8481 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9 8482
0c317a02
PK		 8483 err = cfg80211_validate_beacon_int(rdev, NL80211_IFTYPE_ADHOC,
8484 ibss.beacon_interval);
12d20fc9
PK		 8485 if (err)
8486 return err;
8e30bc55 8487
4c476991
JB		 8488 if (!rdev->ops->join_ibss)
8489 return -EOPNOTSUPP;
04a773ad 8490
4c476991
JB		 8491 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8492 return -EOPNOTSUPP;
04a773ad 8493
79c97e97 8494 wiphy = &rdev->wiphy;
04a773ad 8495
39193498 8496 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 8497 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 8498
8499 if (!is_valid_ether_addr(ibss.bssid))
8500 return -EINVAL;
8501 }
04a773ad
JB		 8502 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8503 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8504
8505 if (info->attrs[NL80211_ATTR_IE]) {
8506 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8507 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8508 }
8509
683b6d3b
JB		 8510 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
8511 if (err)
8512 return err;
04a773ad 8513
174e0cd2
IP		 8514 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
8515 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 8516 return -EINVAL;
8517
2f301ab2 8518 switch (ibss.chandef.width) {
bf372645
SW		 8519 case NL80211_CHAN_WIDTH_5:
8520 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 8521 case NL80211_CHAN_WIDTH_20_NOHT:
8522 break;
8523 case NL80211_CHAN_WIDTH_20:
8524 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 8525 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8526 return -EINVAL;
8527 break;
8528 case NL80211_CHAN_WIDTH_80:
8529 case NL80211_CHAN_WIDTH_80P80:
8530 case NL80211_CHAN_WIDTH_160:
8531 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8532 return -EINVAL;
8533 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8534 NL80211_EXT_FEATURE_VHT_IBSS))
8535 return -EINVAL;
8536 break;
2f301ab2 8537 default:
c04d6150 8538 return -EINVAL;
2f301ab2 8539 }
db9c64cf 8540
04a773ad 8541 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 8542 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
8543
fbd2c8dc
TP		 8544 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8545 u8 *rates =
8546 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8547 int n_rates =
8548 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8549 struct ieee80211_supported_band *sband =
683b6d3b 8550 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 8551
34850ab2
JB		 8552 err = ieee80211_get_ratemask(sband, rates, n_rates,
8553 &ibss.basic_rates);
8554 if (err)
8555 return err;
fbd2c8dc 8556 }
dd5b4cc7 8557
803768f5
SW		 8558 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8559 memcpy(&ibss.ht_capa_mask,
8560 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8561 sizeof(ibss.ht_capa_mask));
8562
8563 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8564 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8565 return -EINVAL;
8566 memcpy(&ibss.ht_capa,
8567 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8568 sizeof(ibss.ht_capa));
8569 }
8570
dd5b4cc7
FF		 8571 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8572 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
8573 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8574 return -EINVAL;
fbd2c8dc 8575
4c476991 8576 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 8577 bool no_ht = false;
8578
4c476991 8579 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 8580 info->attrs[NL80211_ATTR_KEYS],
8581 &no_ht);
4c476991
JB		 8582 if (IS_ERR(connkeys))
8583 return PTR_ERR(connkeys);
de7044ee 8584
3d9d1d66
JB		 8585 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
8586 no_ht) {
5e950a78 8587 kzfree(connkeys);
de7044ee
SM		 8588 return -EINVAL;
8589 }
4c476991 8590 }
04a773ad 8591
267335d6
AQ		 8592 ibss.control_port =
8593 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
8594
5336fa88
SW		 8595 ibss.userspace_handles_dfs =
8596 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
8597
4c476991 8598 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 8599 if (err)
b47f610b 8600 kzfree(connkeys);
04a773ad
JB		 8601 return err;
8602}
8603
8604static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
8605{
4c476991
JB		 8606 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8607 struct net_device *dev = info->user_ptr[1];
04a773ad 8608
4c476991
JB		 8609 if (!rdev->ops->leave_ibss)
8610 return -EOPNOTSUPP;
04a773ad 8611
4c476991
JB		 8612 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8613 return -EOPNOTSUPP;
04a773ad 8614
4c476991 8615 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 8616}
8617
f4e583c8
AQ		 8618static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
8619{
8620 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8621 struct net_device *dev = info->user_ptr[1];
57fbcce3 8622 int mcast_rate[NUM_NL80211_BANDS];
f4e583c8
AQ		 8623 u32 nla_rate;
8624 int err;
8625
8626 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 8627 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
8628 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 8629 return -EOPNOTSUPP;
8630
8631 if (!rdev->ops->set_mcast_rate)
8632 return -EOPNOTSUPP;
8633
8634 memset(mcast_rate, 0, sizeof(mcast_rate));
8635
8636 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
8637 return -EINVAL;
8638
8639 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
8640 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
8641 return -EINVAL;
8642
a1056b1b 8643 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 8644
8645 return err;
8646}
8647
ad7e718c
JB		 8648static struct sk_buff *
8649__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 8650 struct wireless_dev *wdev, int approxlen,
8651 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 8652 enum nl80211_attrs attr,
8653 const struct nl80211_vendor_cmd_info *info,
8654 gfp_t gfp)
ad7e718c
JB		 8655{
8656 struct sk_buff *skb;
8657 void *hdr;
8658 struct nlattr *data;
8659
8660 skb = nlmsg_new(approxlen + 100, gfp);
8661 if (!skb)
8662 return NULL;
8663
8664 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
8665 if (!hdr) {
8666 kfree_skb(skb);
8667 return NULL;
8668 }
8669
8670 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
8671 goto nla_put_failure;
567ffc35
JB		 8672
8673 if (info) {
8674 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
8675 info->vendor_id))
8676 goto nla_put_failure;
8677 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
8678 info->subcmd))
8679 goto nla_put_failure;
8680 }
8681
6c09e791 8682 if (wdev) {
2dad624e
ND		 8683 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
8684 wdev_id(wdev), NL80211_ATTR_PAD))
6c09e791
AK		 8685 goto nla_put_failure;
8686 if (wdev->netdev &&
8687 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
8688 wdev->netdev->ifindex))
8689 goto nla_put_failure;
8690 }
8691
ad7e718c 8692 data = nla_nest_start(skb, attr);
76e1fb4b
JB		 8693 if (!data)
8694 goto nla_put_failure;
ad7e718c
JB		 8695
8696 ((void **)skb->cb)[0] = rdev;
8697 ((void **)skb->cb)[1] = hdr;
8698 ((void **)skb->cb)[2] = data;
8699
8700 return skb;
8701
8702 nla_put_failure:
8703 kfree_skb(skb);
8704 return NULL;
8705}
f4e583c8 8706
e03ad6ea 8707struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 8708 struct wireless_dev *wdev,
e03ad6ea
JB		 8709 enum nl80211_commands cmd,
8710 enum nl80211_attrs attr,
8711 int vendor_event_idx,
8712 int approxlen, gfp_t gfp)
8713{
f26cbf40 8714 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 8715 const struct nl80211_vendor_cmd_info *info;
8716
8717 switch (cmd) {
8718 case NL80211_CMD_TESTMODE:
8719 if (WARN_ON(vendor_event_idx != -1))
8720 return NULL;
8721 info = NULL;
8722 break;
8723 case NL80211_CMD_VENDOR:
8724 if (WARN_ON(vendor_event_idx < 0 ||
8725 vendor_event_idx >= wiphy->n_vendor_events))
8726 return NULL;
8727 info = &wiphy->vendor_events[vendor_event_idx];
8728 break;
8729 default:
8730 WARN_ON(1);
8731 return NULL;
8732 }
8733
6c09e791 8734 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 8735 cmd, attr, info, gfp);
8736}
8737EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8738
8739void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8740{
8741 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8742 void *hdr = ((void **)skb->cb)[1];
8743 struct nlattr *data = ((void **)skb->cb)[2];
8744 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8745
bd8c78e7
JB		 8746 /* clear CB data for netlink core to own from now on */
8747 memset(skb->cb, 0, sizeof(skb->cb));
8748
e03ad6ea
JB		 8749 nla_nest_end(skb, data);
8750 genlmsg_end(skb, hdr);
8751
8752 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8753 mcgrp = NL80211_MCGRP_VENDOR;
8754
8755 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8756 mcgrp, gfp);
8757}
8758EXPORT_SYMBOL(__cfg80211_send_event_skb);
8759
aff89a9b 8760#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 8761static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8762{
4c476991 8763 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 8764 struct wireless_dev *wdev =
8765 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 8766 int err;
8767
fc73f11f
DS		 8768 if (!rdev->ops->testmode_cmd)
8769 return -EOPNOTSUPP;
8770
8771 if (IS_ERR(wdev)) {
8772 err = PTR_ERR(wdev);
8773 if (err != -EINVAL)
8774 return err;
8775 wdev = NULL;
8776 } else if (wdev->wiphy != &rdev->wiphy) {
8777 return -EINVAL;
8778 }
8779
aff89a9b
JB		 8780 if (!info->attrs[NL80211_ATTR_TESTDATA])
8781 return -EINVAL;
8782
ad7e718c 8783 rdev->cur_cmd_info = info;
fc73f11f 8784 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 8785 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8786 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 8787 rdev->cur_cmd_info = NULL;
aff89a9b 8788
aff89a9b
JB		 8789 return err;
8790}
8791
71063f0e
WYG		 8792static int nl80211_testmode_dump(struct sk_buff *skb,
8793 struct netlink_callback *cb)
8794{
00918d33 8795 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 8796 int err;
8797 long phy_idx;
8798 void *data = NULL;
8799 int data_len = 0;
8800
5fe231e8
JB		 8801 rtnl_lock();
8802
71063f0e
WYG		 8803 if (cb->args[0]) {
8804 /*
8805 * 0 is a valid index, but not valid for args[0],
8806 * so we need to offset by 1.
8807 */
8808 phy_idx = cb->args[0] - 1;
a4956dca
LC		 8809
8810 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8811 if (!rdev) {
8812 err = -ENOENT;
8813 goto out_err;
8814 }
71063f0e 8815 } else {
c90c39da
JB		 8816 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
8817
71063f0e 8818 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
fceb6435
JB		 8819 attrbuf, nl80211_fam.maxattr,
8820 nl80211_policy, NULL);
71063f0e 8821 if (err)
5fe231e8 8822 goto out_err;
00918d33 8823
c90c39da 8824 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
2bd7e35d 8825 if (IS_ERR(rdev)) {
5fe231e8
JB		 8826 err = PTR_ERR(rdev);
8827 goto out_err;
00918d33 8828 }
2bd7e35d 8829 phy_idx = rdev->wiphy_idx;
2bd7e35d 8830
c90c39da
JB		 8831 if (attrbuf[NL80211_ATTR_TESTDATA])
8832 cb->args[1] = (long)attrbuf[NL80211_ATTR_TESTDATA];
71063f0e
WYG		 8833 }
8834
8835 if (cb->args[1]) {
8836 data = nla_data((void *)cb->args[1]);
8837 data_len = nla_len((void *)cb->args[1]);
8838 }
8839
00918d33 8840 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 8841 err = -EOPNOTSUPP;
8842 goto out_err;
8843 }
8844
8845 while (1) {
15e47304 8846 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 8847 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8848 NL80211_CMD_TESTMODE);
8849 struct nlattr *tmdata;
8850
cb35fba3
DC		 8851 if (!hdr)
8852 break;
8853
9360ffd1 8854 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 8855 genlmsg_cancel(skb, hdr);
8856 break;
8857 }
8858
8859 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8860 if (!tmdata) {
8861 genlmsg_cancel(skb, hdr);
8862 break;
8863 }
e35e4d28 8864 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 8865 nla_nest_end(skb, tmdata);
8866
8867 if (err == -ENOBUFS || err == -ENOENT) {
8868 genlmsg_cancel(skb, hdr);
8869 break;
8870 } else if (err) {
8871 genlmsg_cancel(skb, hdr);
8872 goto out_err;
8873 }
8874
8875 genlmsg_end(skb, hdr);
8876 }
8877
8878 err = skb->len;
8879 /* see above */
8880 cb->args[0] = phy_idx + 1;
8881 out_err:
5fe231e8 8882 rtnl_unlock();
71063f0e
WYG		 8883 return err;
8884}
aff89a9b
JB		 8885#endif
8886
b23aa676
SO		 8887static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8888{
4c476991
JB		 8889 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8890 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 8891 struct cfg80211_connect_params connect;
8892 struct wiphy *wiphy;
fffd0934 8893 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 8894 int err;
8895
8896 memset(&connect, 0, sizeof(connect));
8897
8898 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8899 return -EINVAL;
8900
8901 if (!info->attrs[NL80211_ATTR_SSID] ||
8902 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8903 return -EINVAL;
8904
8905 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8906 connect.auth_type =
8907 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8908 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8909 NL80211_CMD_CONNECT))
b23aa676
SO		 8910 return -EINVAL;
8911 } else
8912 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8913
8914 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8915
3a00df57
AS		 8916 if (info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS] &&
8917 !wiphy_ext_feature_isset(&rdev->wiphy,
8918 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
8919 return -EINVAL;
8920 connect.want_1x = info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS];
8921
c0692b8f 8922 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8923 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8924 if (err)
8925 return err;
b23aa676 8926
074ac8df 8927 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8928 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8929 return -EOPNOTSUPP;
b23aa676 8930
79c97e97 8931 wiphy = &rdev->wiphy;
b23aa676 8932
4486ea98
BS		 8933 connect.bg_scan_period = -1;
8934 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8935 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8936 connect.bg_scan_period =
8937 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8938 }
8939
b23aa676
SO		 8940 if (info->attrs[NL80211_ATTR_MAC])
8941 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8942 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8943 connect.bssid_hint =
8944 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8945 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8946 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8947
8948 if (info->attrs[NL80211_ATTR_IE]) {
8949 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8950 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8951 }
8952
cee00a95
JM		 8953 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8954 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8955 if (connect.mfp != NL80211_MFP_REQUIRED &&
8956 connect.mfp != NL80211_MFP_NO)
8957 return -EINVAL;
8958 } else {
8959 connect.mfp = NL80211_MFP_NO;
8960 }
8961
ba6fbacf
JM		 8962 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8963 connect.prev_bssid =
8964 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8965
b23aa676 8966 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 8967 connect.channel = nl80211_get_valid_chan(
8968 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8969 if (!connect.channel)
1df4a510
JM		 8970 return -EINVAL;
8971 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 8972 connect.channel_hint = nl80211_get_valid_chan(
8973 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8974 if (!connect.channel_hint)
4c476991 8975 return -EINVAL;
b23aa676
SO		 8976 }
8977
fffd0934
JB		 8978 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8979 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 8980 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 8981 if (IS_ERR(connkeys))
8982 return PTR_ERR(connkeys);
fffd0934
JB		 8983 }
8984
7e7c8926
BG		 8985 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8986 connect.flags |= ASSOC_REQ_DISABLE_HT;
8987
8988 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8989 memcpy(&connect.ht_capa_mask,
8990 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8991 sizeof(connect.ht_capa_mask));
8992
8993 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 8994 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 8995 kzfree(connkeys);
7e7c8926 8996 return -EINVAL;
b4e4f47e 8997 }
7e7c8926
BG		 8998 memcpy(&connect.ht_capa,
8999 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
9000 sizeof(connect.ht_capa));
9001 }
9002
ee2aca34
JB		 9003 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
9004 connect.flags |= ASSOC_REQ_DISABLE_VHT;
9005
9006 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
9007 memcpy(&connect.vht_capa_mask,
9008 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
9009 sizeof(connect.vht_capa_mask));
9010
9011 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
9012 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 9013 kzfree(connkeys);
ee2aca34
JB		 9014 return -EINVAL;
9015 }
9016 memcpy(&connect.vht_capa,
9017 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
9018 sizeof(connect.vht_capa));
9019 }
9020
bab5ab7d 9021 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 9022 if (!((rdev->wiphy.features &
9023 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
9024 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
9025 !wiphy_ext_feature_isset(&rdev->wiphy,
9026 NL80211_EXT_FEATURE_RRM)) {
707554b4 9027 kzfree(connkeys);
bab5ab7d 9028 return -EINVAL;
707554b4 9029 }
bab5ab7d
AK		 9030 connect.flags |= ASSOC_REQ_USE_RRM;
9031 }
9032
34d50519 9033 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 9034 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
34d50519
LD		 9035 kzfree(connkeys);
9036 return -EOPNOTSUPP;
9037 }
9038
38de03d2
AS		 9039 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
9040 /* bss selection makes no sense if bssid is set */
9041 if (connect.bssid) {
9042 kzfree(connkeys);
9043 return -EINVAL;
9044 }
9045
9046 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
9047 wiphy, &connect.bss_select);
9048 if (err) {
9049 kzfree(connkeys);
9050 return err;
9051 }
9052 }
9053
a3caf744
VK		 9054 if (wiphy_ext_feature_isset(&rdev->wiphy,
9055 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
9056 info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] &&
9057 info->attrs[NL80211_ATTR_FILS_ERP_REALM] &&
9058 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] &&
9059 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9060 connect.fils_erp_username =
9061 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9062 connect.fils_erp_username_len =
9063 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9064 connect.fils_erp_realm =
9065 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9066 connect.fils_erp_realm_len =
9067 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9068 connect.fils_erp_next_seq_num =
9069 nla_get_u16(
9070 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM]);
9071 connect.fils_erp_rrk =
9072 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9073 connect.fils_erp_rrk_len =
9074 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9075 } else if (info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] ||
9076 info->attrs[NL80211_ATTR_FILS_ERP_REALM] ||
9077 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] ||
9078 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9079 kzfree(connkeys);
9080 return -EINVAL;
9081 }
9082
83739b03 9083 wdev_lock(dev->ieee80211_ptr);
bd2522b1 9084
4ce2bd9c
JM		 9085 err = cfg80211_connect(rdev, dev, &connect, connkeys,
9086 connect.prev_bssid);
fffd0934 9087 if (err)
b47f610b 9088 kzfree(connkeys);
bd2522b1
AZ		 9089
9090 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
9091 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
9092 if (connect.bssid)
9093 memcpy(dev->ieee80211_ptr->disconnect_bssid,
9094 connect.bssid, ETH_ALEN);
9095 else
9096 memset(dev->ieee80211_ptr->disconnect_bssid,
9097 0, ETH_ALEN);
9098 }
9099
9100 wdev_unlock(dev->ieee80211_ptr);
9101
b23aa676
SO		 9102 return err;
9103}
9104
088e8df8 9105static int nl80211_update_connect_params(struct sk_buff *skb,
9106 struct genl_info *info)
9107{
9108 struct cfg80211_connect_params connect = {};
9109 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9110 struct net_device *dev = info->user_ptr[1];
9111 struct wireless_dev *wdev = dev->ieee80211_ptr;
9112 u32 changed = 0;
9113 int ret;
9114
9115 if (!rdev->ops->update_connect_params)
9116 return -EOPNOTSUPP;
9117
9118 if (info->attrs[NL80211_ATTR_IE]) {
9119 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9120 return -EINVAL;
9121 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9122 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9123 changed |= UPDATE_ASSOC_IES;
9124 }
9125
9126 wdev_lock(dev->ieee80211_ptr);
9127 if (!wdev->current_bss)
9128 ret = -ENOLINK;
9129 else
9130 ret = rdev_update_connect_params(rdev, dev, &connect, changed);
9131 wdev_unlock(dev->ieee80211_ptr);
9132
9133 return ret;
9134}
9135
b23aa676
SO		 9136static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
9137{
4c476991
JB		 9138 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9139 struct net_device *dev = info->user_ptr[1];
b23aa676 9140 u16 reason;
83739b03 9141 int ret;
b23aa676
SO		 9142
9143 if (!info->attrs[NL80211_ATTR_REASON_CODE])
9144 reason = WLAN_REASON_DEAUTH_LEAVING;
9145 else
9146 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
9147
9148 if (reason == 0)
9149 return -EINVAL;
9150
074ac8df 9151 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9152 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9153 return -EOPNOTSUPP;
b23aa676 9154
83739b03
JB		 9155 wdev_lock(dev->ieee80211_ptr);
9156 ret = cfg80211_disconnect(rdev, dev, reason, true);
9157 wdev_unlock(dev->ieee80211_ptr);
9158 return ret;
b23aa676
SO		 9159}
9160
463d0183
JB		 9161static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
9162{
4c476991 9163 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 9164 struct net *net;
9165 int err;
463d0183 9166
4b681c82
VK		 9167 if (info->attrs[NL80211_ATTR_PID]) {
9168 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
9169
9170 net = get_net_ns_by_pid(pid);
9171 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
9172 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 9173
4b681c82
VK		 9174 net = get_net_ns_by_fd(fd);
9175 } else {
9176 return -EINVAL;
9177 }
463d0183 9178
4c476991
JB		 9179 if (IS_ERR(net))
9180 return PTR_ERR(net);
463d0183
JB		 9181
9182 err = 0;
9183
9184 /* check if anything to do */
4c476991
JB		 9185 if (!net_eq(wiphy_net(&rdev->wiphy), net))
9186 err = cfg80211_switch_netns(rdev, net);
463d0183 9187
463d0183 9188 put_net(net);
463d0183
JB		 9189 return err;
9190}
9191
67fbb16b
SO		 9192static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
9193{
4c476991 9194 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 9195 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
9196 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 9197 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 9198 struct cfg80211_pmksa pmksa;
9199
9200 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
9201
67fbb16b
SO		 9202 if (!info->attrs[NL80211_ATTR_PMKID])
9203 return -EINVAL;
9204
67fbb16b 9205 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
a3caf744
VK		 9206
9207 if (info->attrs[NL80211_ATTR_MAC]) {
9208 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
9209 } else if (info->attrs[NL80211_ATTR_SSID] &&
9210 info->attrs[NL80211_ATTR_FILS_CACHE_ID] &&
9211 (info->genlhdr->cmd == NL80211_CMD_DEL_PMKSA ||
9212 info->attrs[NL80211_ATTR_PMK])) {
9213 pmksa.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
9214 pmksa.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
9215 pmksa.cache_id =
9216 nla_data(info->attrs[NL80211_ATTR_FILS_CACHE_ID]);
9217 } else {
9218 return -EINVAL;
9219 }
9220 if (info->attrs[NL80211_ATTR_PMK]) {
9221 pmksa.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
9222 pmksa.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
9223 }
67fbb16b 9224
074ac8df 9225 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9226 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9227 return -EOPNOTSUPP;
67fbb16b
SO		 9228
9229 switch (info->genlhdr->cmd) {
9230 case NL80211_CMD_SET_PMKSA:
9231 rdev_ops = rdev->ops->set_pmksa;
9232 break;
9233 case NL80211_CMD_DEL_PMKSA:
9234 rdev_ops = rdev->ops->del_pmksa;
9235 break;
9236 default:
9237 WARN_ON(1);
9238 break;
9239 }
9240
4c476991
JB		 9241 if (!rdev_ops)
9242 return -EOPNOTSUPP;
67fbb16b 9243
4c476991 9244 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 9245}
9246
9247static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
9248{
4c476991
JB		 9249 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9250 struct net_device *dev = info->user_ptr[1];
67fbb16b 9251
074ac8df 9252 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9253 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9254 return -EOPNOTSUPP;
67fbb16b 9255
4c476991
JB		 9256 if (!rdev->ops->flush_pmksa)
9257 return -EOPNOTSUPP;
67fbb16b 9258
e35e4d28 9259 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 9260}
9261
109086ce
AN		 9262static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
9263{
9264 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9265 struct net_device *dev = info->user_ptr[1];
9266 u8 action_code, dialog_token;
df942e7b 9267 u32 peer_capability = 0;
109086ce
AN		 9268 u16 status_code;
9269 u8 *peer;
31fa97c5 9270 bool initiator;
109086ce
AN		 9271
9272 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9273 !rdev->ops->tdls_mgmt)
9274 return -EOPNOTSUPP;
9275
9276 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
9277 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
9278 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
9279 !info->attrs[NL80211_ATTR_IE] ||
9280 !info->attrs[NL80211_ATTR_MAC])
9281 return -EINVAL;
9282
9283 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9284 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
9285 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
9286 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 9287 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 9288 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
9289 peer_capability =
9290 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 9291
e35e4d28 9292 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 9293 dialog_token, status_code, peer_capability,
31fa97c5 9294 initiator,
e35e4d28
HG		 9295 nla_data(info->attrs[NL80211_ATTR_IE]),
9296 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 9297}
9298
9299static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
9300{
9301 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9302 struct net_device *dev = info->user_ptr[1];
9303 enum nl80211_tdls_operation operation;
9304 u8 *peer;
9305
9306 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9307 !rdev->ops->tdls_oper)
9308 return -EOPNOTSUPP;
9309
9310 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
9311 !info->attrs[NL80211_ATTR_MAC])
9312 return -EINVAL;
9313
9314 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
9315 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9316
e35e4d28 9317 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 9318}
9319
9588bbd5
JM		 9320static int nl80211_remain_on_channel(struct sk_buff *skb,
9321 struct genl_info *info)
9322{
4c476991 9323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9324 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 9325 struct cfg80211_chan_def chandef;
34373d12 9326 const struct cfg80211_chan_def *compat_chandef;
9588bbd5
JM		 9327 struct sk_buff *msg;
9328 void *hdr;
9329 u64 cookie;
683b6d3b 9330 u32 duration;
9588bbd5
JM		 9331 int err;
9332
9333 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
9334 !info->attrs[NL80211_ATTR_DURATION])
9335 return -EINVAL;
9336
9337 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9338
ebf348fc
JB		 9339 if (!rdev->ops->remain_on_channel ||
9340 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
9341 return -EOPNOTSUPP;
9342
9588bbd5 9343 /*
ebf348fc
JB		 9344 * We should be on that channel for at least a minimum amount of
9345 * time (10ms) but no longer than the driver supports.
9588bbd5 9346 */
ebf348fc 9347 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 9348 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 9349 return -EINVAL;
9350
683b6d3b
JB		 9351 err = nl80211_parse_chandef(rdev, info, &chandef);
9352 if (err)
9353 return err;
9588bbd5 9354
34373d12
VT		 9355 wdev_lock(wdev);
9356 if (!cfg80211_off_channel_oper_allowed(wdev) &&
9357 !cfg80211_chandef_identical(&wdev->chandef, &chandef)) {
9358 compat_chandef = cfg80211_chandef_compatible(&wdev->chandef,
9359 &chandef);
9360 if (compat_chandef != &chandef) {
9361 wdev_unlock(wdev);
9362 return -EBUSY;
9363 }
9364 }
9365 wdev_unlock(wdev);
9366
9588bbd5 9367 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9368 if (!msg)
9369 return -ENOMEM;
9588bbd5 9370
15e47304 9371 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 9372 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 9373 if (!hdr) {
9374 err = -ENOBUFS;
9588bbd5
JM		 9375 goto free_msg;
9376 }
9377
683b6d3b
JB		 9378 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
9379 duration, &cookie);
9588bbd5
JM		 9380
9381 if (err)
9382 goto free_msg;
9383
2dad624e
ND		 9384 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9385 NL80211_ATTR_PAD))
9360ffd1 9386 goto nla_put_failure;
9588bbd5
JM		 9387
9388 genlmsg_end(msg, hdr);
4c476991
JB		 9389
9390 return genlmsg_reply(msg, info);
9588bbd5
JM		 9391
9392 nla_put_failure:
9393 err = -ENOBUFS;
9394 free_msg:
9395 nlmsg_free(msg);
9588bbd5
JM		 9396 return err;
9397}
9398
9399static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
9400 struct genl_info *info)
9401{
4c476991 9402 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9403 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 9404 u64 cookie;
9588bbd5
JM		 9405
9406 if (!info->attrs[NL80211_ATTR_COOKIE])
9407 return -EINVAL;
9408
4c476991
JB		 9409 if (!rdev->ops->cancel_remain_on_channel)
9410 return -EOPNOTSUPP;
9588bbd5 9411
9588bbd5
JM		 9412 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9413
e35e4d28 9414 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 9415}
9416
13ae75b1
JM		 9417static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
9418 struct genl_info *info)
9419{
13ae75b1 9420 struct cfg80211_bitrate_mask mask;
a7c7fbff 9421 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9422 struct net_device *dev = info->user_ptr[1];
a7c7fbff 9423 int err;
13ae75b1 9424
4c476991
JB		 9425 if (!rdev->ops->set_bitrate_mask)
9426 return -EOPNOTSUPP;
13ae75b1 9427
a7c7fbff
PK		 9428 err = nl80211_parse_tx_bitrate_mask(info, &mask);
9429 if (err)
9430 return err;
13ae75b1 9431
e35e4d28 9432 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 9433}
9434
2e161f78 9435static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9436{
4c476991 9437 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9438 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 9439 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 9440
9441 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
9442 return -EINVAL;
9443
2e161f78
JB		 9444 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
9445 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 9446
71bbc994
JB		 9447 switch (wdev->iftype) {
9448 case NL80211_IFTYPE_STATION:
9449 case NL80211_IFTYPE_ADHOC:
9450 case NL80211_IFTYPE_P2P_CLIENT:
9451 case NL80211_IFTYPE_AP:
9452 case NL80211_IFTYPE_AP_VLAN:
9453 case NL80211_IFTYPE_MESH_POINT:
9454 case NL80211_IFTYPE_P2P_GO:
98104fde 9455 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9456 break;
cb3b7d87 9457 case NL80211_IFTYPE_NAN:
71bbc994 9458 default:
4c476991 9459 return -EOPNOTSUPP;
71bbc994 9460 }
026331c4
JM		 9461
9462 /* not much point in registering if we can't reply */
4c476991
JB		 9463 if (!rdev->ops->mgmt_tx)
9464 return -EOPNOTSUPP;
026331c4 9465
15e47304 9466 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 9467 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
9468 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 9469}
9470
2e161f78 9471static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9472{
4c476991 9473 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9474 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 9475 struct cfg80211_chan_def chandef;
026331c4 9476 int err;
d64d373f 9477 void *hdr = NULL;
026331c4 9478 u64 cookie;
e247bd90 9479 struct sk_buff *msg = NULL;
b176e629
AO		 9480 struct cfg80211_mgmt_tx_params params = {
9481 .dont_wait_for_ack =
9482 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
9483 };
026331c4 9484
683b6d3b 9485 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 9486 return -EINVAL;
9487
4c476991
JB		 9488 if (!rdev->ops->mgmt_tx)
9489 return -EOPNOTSUPP;
026331c4 9490
71bbc994 9491 switch (wdev->iftype) {
ea141b75
AQ		 9492 case NL80211_IFTYPE_P2P_DEVICE:
9493 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
9494 return -EINVAL;
71bbc994
JB		 9495 case NL80211_IFTYPE_STATION:
9496 case NL80211_IFTYPE_ADHOC:
9497 case NL80211_IFTYPE_P2P_CLIENT:
9498 case NL80211_IFTYPE_AP:
9499 case NL80211_IFTYPE_AP_VLAN:
9500 case NL80211_IFTYPE_MESH_POINT:
9501 case NL80211_IFTYPE_P2P_GO:
9502 break;
cb3b7d87 9503 case NL80211_IFTYPE_NAN:
71bbc994 9504 default:
4c476991 9505 return -EOPNOTSUPP;
71bbc994 9506 }
026331c4 9507
f7ca38df 9508 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 9509 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 9510 return -EINVAL;
b176e629 9511 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 9512
9513 /*
9514 * We should wait on the channel for at least a minimum amount
9515 * of time (10ms) but no longer than the driver supports.
9516 */
b176e629
AO		 9517 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9518 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc 9519 return -EINVAL;
f7ca38df
JB		 9520 }
9521
b176e629 9522 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 9523
b176e629 9524 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 9525 return -EINVAL;
9526
b176e629 9527 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 9528
ea141b75
AQ		 9529 /* get the channel if any has been specified, otherwise pass NULL to
9530 * the driver. The latter will use the current one
9531 */
9532 chandef.chan = NULL;
9533 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9534 err = nl80211_parse_chandef(rdev, info, &chandef);
9535 if (err)
9536 return err;
9537 }
9538
b176e629 9539 if (!chandef.chan && params.offchan)
ea141b75 9540 return -EINVAL;
026331c4 9541
34373d12
VT		 9542 wdev_lock(wdev);
9543 if (params.offchan && !cfg80211_off_channel_oper_allowed(wdev)) {
9544 wdev_unlock(wdev);
9545 return -EBUSY;
9546 }
9547 wdev_unlock(wdev);
9548
34d22ce2
AO		 9549 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
9550 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
9551
9552 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
9553 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9554 int i;
9555
9556 if (len % sizeof(u16))
9557 return -EINVAL;
9558
9559 params.n_csa_offsets = len / sizeof(u16);
9560 params.csa_offsets =
9561 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9562
9563 /* check that all the offsets fit the frame */
9564 for (i = 0; i < params.n_csa_offsets; i++) {
9565 if (params.csa_offsets[i] >= params.len)
9566 return -EINVAL;
9567 }
9568 }
9569
b176e629 9570 if (!params.dont_wait_for_ack) {
e247bd90
JB		 9571 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9572 if (!msg)
9573 return -ENOMEM;
026331c4 9574
15e47304 9575 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 9576 NL80211_CMD_FRAME);
cb35fba3
DC		 9577 if (!hdr) {
9578 err = -ENOBUFS;
e247bd90
JB		 9579 goto free_msg;
9580 }
026331c4 9581 }
e247bd90 9582
b176e629
AO		 9583 params.chan = chandef.chan;
9584 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 9585 if (err)
9586 goto free_msg;
9587
e247bd90 9588 if (msg) {
2dad624e
ND		 9589 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9590 NL80211_ATTR_PAD))
9360ffd1 9591 goto nla_put_failure;
026331c4 9592
e247bd90
JB		 9593 genlmsg_end(msg, hdr);
9594 return genlmsg_reply(msg, info);
9595 }
9596
9597 return 0;
026331c4
JM		 9598
9599 nla_put_failure:
9600 err = -ENOBUFS;
9601 free_msg:
9602 nlmsg_free(msg);
026331c4
JM		 9603 return err;
9604}
9605
f7ca38df
JB		 9606static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
9607{
9608 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9609 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 9610 u64 cookie;
9611
9612 if (!info->attrs[NL80211_ATTR_COOKIE])
9613 return -EINVAL;
9614
9615 if (!rdev->ops->mgmt_tx_cancel_wait)
9616 return -EOPNOTSUPP;
9617
71bbc994
JB		 9618 switch (wdev->iftype) {
9619 case NL80211_IFTYPE_STATION:
9620 case NL80211_IFTYPE_ADHOC:
9621 case NL80211_IFTYPE_P2P_CLIENT:
9622 case NL80211_IFTYPE_AP:
9623 case NL80211_IFTYPE_AP_VLAN:
9624 case NL80211_IFTYPE_P2P_GO:
98104fde 9625 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9626 break;
cb3b7d87 9627 case NL80211_IFTYPE_NAN:
71bbc994 9628 default:
f7ca38df 9629 return -EOPNOTSUPP;
71bbc994 9630 }
f7ca38df
JB		 9631
9632 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9633
e35e4d28 9634 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 9635}
9636
ffb9eb3d
KV		 9637static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9638{
4c476991 9639 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 9640 struct wireless_dev *wdev;
4c476991 9641 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9642 u8 ps_state;
9643 bool state;
9644 int err;
9645
4c476991
JB		 9646 if (!info->attrs[NL80211_ATTR_PS_STATE])
9647 return -EINVAL;
ffb9eb3d
KV		 9648
9649 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9650
4c476991
JB		 9651 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9652 return -EINVAL;
ffb9eb3d
KV		 9653
9654 wdev = dev->ieee80211_ptr;
9655
4c476991
JB		 9656 if (!rdev->ops->set_power_mgmt)
9657 return -EOPNOTSUPP;
ffb9eb3d
KV		 9658
9659 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9660
9661 if (state == wdev->ps)
4c476991 9662 return 0;
ffb9eb3d 9663
e35e4d28 9664 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 9665 if (!err)
9666 wdev->ps = state;
ffb9eb3d
KV		 9667 return err;
9668}
9669
9670static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9671{
4c476991 9672 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 9673 enum nl80211_ps_state ps_state;
9674 struct wireless_dev *wdev;
4c476991 9675 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9676 struct sk_buff *msg;
9677 void *hdr;
9678 int err;
9679
ffb9eb3d
KV		 9680 wdev = dev->ieee80211_ptr;
9681
4c476991
JB		 9682 if (!rdev->ops->set_power_mgmt)
9683 return -EOPNOTSUPP;
ffb9eb3d
KV		 9684
9685 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9686 if (!msg)
9687 return -ENOMEM;
ffb9eb3d 9688
15e47304 9689 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 9690 NL80211_CMD_GET_POWER_SAVE);
9691 if (!hdr) {
4c476991 9692 err = -ENOBUFS;
ffb9eb3d
KV		 9693 goto free_msg;
9694 }
9695
9696 if (wdev->ps)
9697 ps_state = NL80211_PS_ENABLED;
9698 else
9699 ps_state = NL80211_PS_DISABLED;
9700
9360ffd1
DM		 9701 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9702 goto nla_put_failure;
ffb9eb3d
KV		 9703
9704 genlmsg_end(msg, hdr);
4c476991 9705 return genlmsg_reply(msg, info);
ffb9eb3d 9706
4c476991 9707 nla_put_failure:
ffb9eb3d 9708 err = -ENOBUFS;
4c476991 9709 free_msg:
ffb9eb3d 9710 nlmsg_free(msg);
ffb9eb3d
KV		 9711 return err;
9712}
9713
94e860f1
JB		 9714static const struct nla_policy
9715nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
4a4b8169 9716 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_BINARY },
d6dc1a38
JO		 9717 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9718 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 9719 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9720 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9721 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
bee427b8 9722 [NL80211_ATTR_CQM_RSSI_LEVEL] = { .type = NLA_S32 },
d6dc1a38
JO		 9723};
9724
84f10708 9725static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 9726 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 9727{
9728 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 9729 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9730 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 9731
d9d8b019 9732 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 9733 return -EINVAL;
9734
84f10708
TP		 9735 if (!rdev->ops->set_cqm_txe_config)
9736 return -EOPNOTSUPP;
9737
9738 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9739 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9740 return -EOPNOTSUPP;
9741
e35e4d28 9742 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 9743}
9744
4a4b8169
AZ		 9745static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev,
9746 struct net_device *dev)
9747{
9748 struct wireless_dev *wdev = dev->ieee80211_ptr;
9749 s32 last, low, high;
9750 u32 hyst;
9751 int i, n;
9752 int err;
9753
9754 /* RSSI reporting disabled? */
9755 if (!wdev->cqm_config)
9756 return rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0);
9757
9758 /*
9759 * Obtain current RSSI value if possible, if not and no RSSI threshold
9760 * event has been received yet, we should receive an event after a
9761 * connection is established and enough beacons received to calculate
9762 * the average.
9763 */
9764 if (!wdev->cqm_config->last_rssi_event_value && wdev->current_bss &&
9765 rdev->ops->get_station) {
9766 struct station_info sinfo;
9767 u8 *mac_addr;
9768
9769 mac_addr = wdev->current_bss->pub.bssid;
9770
9771 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
9772 if (err)
9773 return err;
9774
9775 if (sinfo.filled & BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG))
9776 wdev->cqm_config->last_rssi_event_value =
9777 (s8) sinfo.rx_beacon_signal_avg;
9778 }
9779
9780 last = wdev->cqm_config->last_rssi_event_value;
9781 hyst = wdev->cqm_config->rssi_hyst;
9782 n = wdev->cqm_config->n_rssi_thresholds;
9783
9784 for (i = 0; i < n; i++)
9785 if (last < wdev->cqm_config->rssi_thresholds[i])
9786 break;
9787
9788 low = i > 0 ?
9789 (wdev->cqm_config->rssi_thresholds[i - 1] - hyst) : S32_MIN;
9790 high = i < n ?
9791 (wdev->cqm_config->rssi_thresholds[i] + hyst - 1) : S32_MAX;
9792
9793 return rdev_set_cqm_rssi_range_config(rdev, dev, low, high);
9794}
9795
d6dc1a38 9796static int nl80211_set_cqm_rssi(struct genl_info *info,
4a4b8169
AZ		 9797 const s32 *thresholds, int n_thresholds,
9798 u32 hysteresis)
d6dc1a38 9799{
4c476991 9800 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9801 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9802 struct wireless_dev *wdev = dev->ieee80211_ptr;
4a4b8169
AZ		 9803 int i, err;
9804 s32 prev = S32_MIN;
d6dc1a38 9805
4a4b8169
AZ		 9806 /* Check all values negative and sorted */
9807 for (i = 0; i < n_thresholds; i++) {
9808 if (thresholds[i] > 0 || thresholds[i] <= prev)
9809 return -EINVAL;
d6dc1a38 9810
4a4b8169
AZ		 9811 prev = thresholds[i];
9812 }
d6dc1a38 9813
074ac8df 9814 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9815 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9816 return -EOPNOTSUPP;
d6dc1a38 9817
4a4b8169
AZ		 9818 wdev_lock(wdev);
9819 cfg80211_cqm_config_free(wdev);
9820 wdev_unlock(wdev);
9821
9822 if (n_thresholds <= 1 && rdev->ops->set_cqm_rssi_config) {
9823 if (n_thresholds == 0 || thresholds[0] == 0) /* Disabling */
9824 return rdev_set_cqm_rssi_config(rdev, dev, 0, 0);
9825
9826 return rdev_set_cqm_rssi_config(rdev, dev,
9827 thresholds[0], hysteresis);
9828 }
9829
9830 if (!wiphy_ext_feature_isset(&rdev->wiphy,
9831 NL80211_EXT_FEATURE_CQM_RSSI_LIST))
9832 return -EOPNOTSUPP;
9833
9834 if (n_thresholds == 1 && thresholds[0] == 0) /* Disabling */
9835 n_thresholds = 0;
9836
9837 wdev_lock(wdev);
9838 if (n_thresholds) {
9839 struct cfg80211_cqm_config *cqm_config;
9840
9841 cqm_config = kzalloc(sizeof(struct cfg80211_cqm_config) +
9842 n_thresholds * sizeof(s32), GFP_KERNEL);
9843 if (!cqm_config) {
9844 err = -ENOMEM;
9845 goto unlock;
9846 }
9847
9848 cqm_config->rssi_hyst = hysteresis;
9849 cqm_config->n_rssi_thresholds = n_thresholds;
9850 memcpy(cqm_config->rssi_thresholds, thresholds,
9851 n_thresholds * sizeof(s32));
9852
9853 wdev->cqm_config = cqm_config;
9854 }
9855
9856 err = cfg80211_cqm_rssi_update(rdev, dev);
9857
9858unlock:
9859 wdev_unlock(wdev);
9860
9861 return err;
d6dc1a38
JO		 9862}
9863
9864static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9865{
9866 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9867 struct nlattr *cqm;
9868 int err;
9869
9870 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 9871 if (!cqm)
9872 return -EINVAL;
d6dc1a38
JO		 9873
9874 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
fe52145f 9875 nl80211_attr_cqm_policy, info->extack);
d6dc1a38 9876 if (err)
1da5fcc8 9877 return err;
d6dc1a38
JO		 9878
9879 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9880 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
4a4b8169
AZ		 9881 const s32 *thresholds =
9882 nla_data(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9883 int len = nla_len(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
1da5fcc8 9884 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 9885
4a4b8169
AZ		 9886 if (len % 4)
9887 return -EINVAL;
9888
9889 return nl80211_set_cqm_rssi(info, thresholds, len / 4,
9890 hysteresis);
1da5fcc8
JB		 9891 }
9892
9893 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9894 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9895 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9896 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9897 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9898 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9899
9900 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9901 }
9902
9903 return -EINVAL;
d6dc1a38
JO		 9904}
9905
6e0bd6c3
RL		 9906static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9907{
9908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9909 struct net_device *dev = info->user_ptr[1];
9910 struct ocb_setup setup = {};
9911 int err;
9912
9913 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9914 if (err)
9915 return err;
9916
9917 return cfg80211_join_ocb(rdev, dev, &setup);
9918}
9919
9920static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9921{
9922 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9923 struct net_device *dev = info->user_ptr[1];
9924
9925 return cfg80211_leave_ocb(rdev, dev);
9926}
9927
29cbe68c
JB		 9928static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9929{
9930 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9931 struct net_device *dev = info->user_ptr[1];
9932 struct mesh_config cfg;
c80d545d 9933 struct mesh_setup setup;
29cbe68c
JB		 9934 int err;
9935
9936 /* start with default */
9937 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9938 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9939
24bdd9f4 9940 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9941 /* and parse parameters if given */
24bdd9f4 9942 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9943 if (err)
9944 return err;
9945 }
9946
9947 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9948 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9949 return -EINVAL;
9950
c80d545d
JC		 9951 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9952 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9953
4bb62344
CYY		 9954 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9955 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9956 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9957 return -EINVAL;
9958
9bdbf04d
MP		 9959 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9960 setup.beacon_interval =
9961 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9 9962
0c317a02
PK		 9963 err = cfg80211_validate_beacon_int(rdev,
9964 NL80211_IFTYPE_MESH_POINT,
9965 setup.beacon_interval);
12d20fc9
PK		 9966 if (err)
9967 return err;
9bdbf04d
MP		 9968 }
9969
9970 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9971 setup.dtim_period =
9972 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9973 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9974 return -EINVAL;
9975 }
9976
c80d545d
JC		 9977 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9978 /* parse additional setup parameters if given */
9979 err = nl80211_parse_mesh_setup(info, &setup);
9980 if (err)
9981 return err;
9982 }
9983
d37bb18a
TP		 9984 if (setup.user_mpm)
9985 cfg.auto_open_plinks = false;
9986
cc1d2806 9987 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 9988 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9989 if (err)
9990 return err;
cc1d2806
JB		 9991 } else {
9992 /* cfg80211_join_mesh() will sort it out */
683b6d3b 9993 setup.chandef.chan = NULL;
cc1d2806
JB		 9994 }
9995
ffb3cf30
AN		 9996 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9997 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9998 int n_rates =
9999 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
10000 struct ieee80211_supported_band *sband;
10001
10002 if (!setup.chandef.chan)
10003 return -EINVAL;
10004
10005 sband = rdev->wiphy.bands[setup.chandef.chan->band];
10006
10007 err = ieee80211_get_ratemask(sband, rates, n_rates,
10008 &setup.basic_rates);
10009 if (err)
10010 return err;
10011 }
10012
8564e382
JB		 10013 if (info->attrs[NL80211_ATTR_TX_RATES]) {
10014 err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
10015 if (err)
10016 return err;
10017
10018 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
10019 &setup.beacon_rate);
10020 if (err)
10021 return err;
10022 }
10023
d37d49c2
BB		 10024 setup.userspace_handles_dfs =
10025 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
10026
c80d545d 10027 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 10028}
10029
10030static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
10031{
10032 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10033 struct net_device *dev = info->user_ptr[1];
10034
10035 return cfg80211_leave_mesh(rdev, dev);
10036}
10037
dfb89c56 10038#ifdef CONFIG_PM
bb92d199
AK		 10039static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
10040 struct cfg80211_registered_device *rdev)
10041{
6abb9cb9 10042 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 10043 struct nlattr *nl_pats, *nl_pat;
10044 int i, pat_len;
10045
6abb9cb9 10046 if (!wowlan->n_patterns)
bb92d199
AK		 10047 return 0;
10048
10049 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
10050 if (!nl_pats)
10051 return -ENOBUFS;
10052
6abb9cb9 10053 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 10054 nl_pat = nla_nest_start(msg, i + 1);
10055 if (!nl_pat)
10056 return -ENOBUFS;
6abb9cb9 10057 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 10058 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 10059 wowlan->patterns[i].mask) ||
50ac6607
AK		 10060 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10061 wowlan->patterns[i].pattern) ||
10062 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 10063 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 10064 return -ENOBUFS;
10065 nla_nest_end(msg, nl_pat);
10066 }
10067 nla_nest_end(msg, nl_pats);
10068
10069 return 0;
10070}
10071
2a0e047e
JB		 10072static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
10073 struct cfg80211_wowlan_tcp *tcp)
10074{
10075 struct nlattr *nl_tcp;
10076
10077 if (!tcp)
10078 return 0;
10079
10080 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
10081 if (!nl_tcp)
10082 return -ENOBUFS;
10083
930345ea
JB		 10084 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
10085 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 10086 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
10087 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
10088 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
10089 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
10090 tcp->payload_len, tcp->payload) ||
10091 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
10092 tcp->data_interval) ||
10093 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
10094 tcp->wake_len, tcp->wake_data) ||
10095 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
10096 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
10097 return -ENOBUFS;
10098
10099 if (tcp->payload_seq.len &&
10100 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
10101 sizeof(tcp->payload_seq), &tcp->payload_seq))
10102 return -ENOBUFS;
10103
10104 if (tcp->payload_tok.len &&
10105 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
10106 sizeof(tcp->payload_tok) + tcp->tokens_size,
10107 &tcp->payload_tok))
10108 return -ENOBUFS;
10109
e248ad30
JB		 10110 nla_nest_end(msg, nl_tcp);
10111
2a0e047e
JB		 10112 return 0;
10113}
10114
75453ccb
LC		 10115static int nl80211_send_wowlan_nd(struct sk_buff *msg,
10116 struct cfg80211_sched_scan_request *req)
10117{
3b06d277 10118 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 10119 int i;
10120
10121 if (!req)
10122 return 0;
10123
10124 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
10125 if (!nd)
10126 return -ENOBUFS;
10127
3b06d277
AS		 10128 if (req->n_scan_plans == 1 &&
10129 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
10130 req->scan_plans[0].interval * 1000))
75453ccb
LC		 10131 return -ENOBUFS;
10132
21fea567
LC		 10133 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
10134 return -ENOBUFS;
10135
bf95ecdb 10136 if (req->relative_rssi_set) {
10137 struct nl80211_bss_select_rssi_adjust rssi_adjust;
10138
10139 if (nla_put_s8(msg, NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI,
10140 req->relative_rssi))
10141 return -ENOBUFS;
10142
10143 rssi_adjust.band = req->rssi_adjust.band;
10144 rssi_adjust.delta = req->rssi_adjust.delta;
10145 if (nla_put(msg, NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST,
10146 sizeof(rssi_adjust), &rssi_adjust))
10147 return -ENOBUFS;
10148 }
10149
75453ccb
LC		 10150 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10151 if (!freqs)
10152 return -ENOBUFS;
10153
53b18980
JB		 10154 for (i = 0; i < req->n_channels; i++) {
10155 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10156 return -ENOBUFS;
10157 }
75453ccb
LC		 10158
10159 nla_nest_end(msg, freqs);
10160
10161 if (req->n_match_sets) {
10162 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
76e1fb4b
JB		 10163 if (!matches)
10164 return -ENOBUFS;
10165
75453ccb
LC		 10166 for (i = 0; i < req->n_match_sets; i++) {
10167 match = nla_nest_start(msg, i);
76e1fb4b
JB		 10168 if (!match)
10169 return -ENOBUFS;
10170
53b18980
JB		 10171 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
10172 req->match_sets[i].ssid.ssid_len,
10173 req->match_sets[i].ssid.ssid))
10174 return -ENOBUFS;
75453ccb
LC		 10175 nla_nest_end(msg, match);
10176 }
10177 nla_nest_end(msg, matches);
10178 }
10179
3b06d277
AS		 10180 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
10181 if (!scan_plans)
10182 return -ENOBUFS;
10183
10184 for (i = 0; i < req->n_scan_plans; i++) {
10185 scan_plan = nla_nest_start(msg, i + 1);
76e1fb4b
JB		 10186 if (!scan_plan)
10187 return -ENOBUFS;
10188
3b06d277
AS		 10189 if (!scan_plan ||
10190 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
10191 req->scan_plans[i].interval) ||
10192 (req->scan_plans[i].iterations &&
10193 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
10194 req->scan_plans[i].iterations)))
10195 return -ENOBUFS;
10196 nla_nest_end(msg, scan_plan);
10197 }
10198 nla_nest_end(msg, scan_plans);
10199
75453ccb
LC		 10200 nla_nest_end(msg, nd);
10201
10202 return 0;
10203}
10204
ff1b6e69
JB		 10205static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
10206{
10207 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10208 struct sk_buff *msg;
10209 void *hdr;
2a0e047e 10210 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 10211
964dc9e2 10212 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 10213 return -EOPNOTSUPP;
10214
6abb9cb9 10215 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 10216 /* adjust size to have room for all the data */
6abb9cb9
JB		 10217 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
10218 rdev->wiphy.wowlan_config->tcp->payload_len +
10219 rdev->wiphy.wowlan_config->tcp->wake_len +
10220 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 10221 }
10222
10223 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 10224 if (!msg)
10225 return -ENOMEM;
10226
15e47304 10227 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 10228 NL80211_CMD_GET_WOWLAN);
10229 if (!hdr)
10230 goto nla_put_failure;
10231
6abb9cb9 10232 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 10233 struct nlattr *nl_wowlan;
10234
10235 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10236 if (!nl_wowlan)
10237 goto nla_put_failure;
10238
6abb9cb9 10239 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 10240 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 10241 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 10242 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 10243 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 10244 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 10245 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 10246 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 10247 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 10248 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 10249 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 10250 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 10251 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 10252 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
10253 goto nla_put_failure;
2a0e047e 10254
bb92d199
AK		 10255 if (nl80211_send_wowlan_patterns(msg, rdev))
10256 goto nla_put_failure;
2a0e047e 10257
6abb9cb9
JB		 10258 if (nl80211_send_wowlan_tcp(msg,
10259 rdev->wiphy.wowlan_config->tcp))
2a0e047e 10260 goto nla_put_failure;
75453ccb
LC		 10261
10262 if (nl80211_send_wowlan_nd(
10263 msg,
10264 rdev->wiphy.wowlan_config->nd_config))
10265 goto nla_put_failure;
2a0e047e 10266
ff1b6e69
JB		 10267 nla_nest_end(msg, nl_wowlan);
10268 }
10269
10270 genlmsg_end(msg, hdr);
10271 return genlmsg_reply(msg, info);
10272
10273nla_put_failure:
10274 nlmsg_free(msg);
10275 return -ENOBUFS;
10276}
10277
2a0e047e
JB		 10278static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
10279 struct nlattr *attr,
10280 struct cfg80211_wowlan *trig)
10281{
10282 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
10283 struct cfg80211_wowlan_tcp *cfg;
10284 struct nl80211_wowlan_tcp_data_token *tok = NULL;
10285 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
10286 u32 size;
10287 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
10288 int err, port;
10289
964dc9e2 10290 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 10291 return -EINVAL;
10292
bfe2c7b1 10293 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TCP, attr,
fceb6435 10294 nl80211_wowlan_tcp_policy, NULL);
2a0e047e
JB		 10295 if (err)
10296 return err;
10297
10298 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
10299 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
10300 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
10301 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
10302 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
10303 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
10304 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
10305 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
10306 return -EINVAL;
10307
10308 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 10309 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 10310 return -EINVAL;
10311
10312 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 10313 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 10314 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 10315 return -EINVAL;
10316
10317 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 10318 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 10319 return -EINVAL;
10320
10321 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
10322 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
10323 return -EINVAL;
10324
10325 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
10326 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10327
10328 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10329 tokens_size = tokln - sizeof(*tok);
10330
10331 if (!tok->len || tokens_size % tok->len)
10332 return -EINVAL;
964dc9e2 10333 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 10334 return -EINVAL;
964dc9e2 10335 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 10336 return -EINVAL;
964dc9e2 10337 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 10338 return -EINVAL;
964dc9e2 10339 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 10340 return -EINVAL;
10341 if (tok->offset + tok->len > data_size)
10342 return -EINVAL;
10343 }
10344
10345 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
10346 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 10347 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 10348 return -EINVAL;
10349 if (seq->len == 0 || seq->len > 4)
10350 return -EINVAL;
10351 if (seq->len + seq->offset > data_size)
10352 return -EINVAL;
10353 }
10354
10355 size = sizeof(*cfg);
10356 size += data_size;
10357 size += wake_size + wake_mask_size;
10358 size += tokens_size;
10359
10360 cfg = kzalloc(size, GFP_KERNEL);
10361 if (!cfg)
10362 return -ENOMEM;
67b61f6c
JB		 10363 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
10364 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 10365 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
10366 ETH_ALEN);
10367 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
10368 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
10369 else
10370 port = 0;
10371#ifdef CONFIG_INET
10372 /* allocate a socket and port for it and use it */
10373 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
10374 IPPROTO_TCP, &cfg->sock, 1);
10375 if (err) {
10376 kfree(cfg);
10377 return err;
10378 }
10379 if (inet_csk_get_port(cfg->sock->sk, port)) {
10380 sock_release(cfg->sock);
10381 kfree(cfg);
10382 return -EADDRINUSE;
10383 }
10384 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
10385#else
10386 if (!port) {
10387 kfree(cfg);
10388 return -EINVAL;
10389 }
10390 cfg->src_port = port;
10391#endif
10392
10393 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
10394 cfg->payload_len = data_size;
10395 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
10396 memcpy((void *)cfg->payload,
10397 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
10398 data_size);
10399 if (seq)
10400 cfg->payload_seq = *seq;
10401 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
10402 cfg->wake_len = wake_size;
10403 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
10404 memcpy((void *)cfg->wake_data,
10405 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
10406 wake_size);
10407 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
10408 data_size + wake_size;
10409 memcpy((void *)cfg->wake_mask,
10410 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
10411 wake_mask_size);
10412 if (tok) {
10413 cfg->tokens_size = tokens_size;
10414 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
10415 }
10416
10417 trig->tcp = cfg;
10418
10419 return 0;
10420}
10421
8cd4d456
LC		 10422static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
10423 const struct wiphy_wowlan_support *wowlan,
10424 struct nlattr *attr,
10425 struct cfg80211_wowlan *trig)
10426{
10427 struct nlattr **tb;
10428 int err;
10429
10430 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
10431 if (!tb)
10432 return -ENOMEM;
10433
10434 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
10435 err = -EOPNOTSUPP;
10436 goto out;
10437 }
10438
fceb6435
JB		 10439 err = nla_parse_nested(tb, NL80211_ATTR_MAX, attr, nl80211_policy,
10440 NULL);
8cd4d456
LC		 10441 if (err)
10442 goto out;
10443
aad1e812
AVS		 10444 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb,
10445 wowlan->max_nd_match_sets);
8cd4d456
LC		 10446 err = PTR_ERR_OR_ZERO(trig->nd_config);
10447 if (err)
10448 trig->nd_config = NULL;
10449
10450out:
10451 kfree(tb);
10452 return err;
10453}
10454
ff1b6e69
JB		 10455static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
10456{
10457 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10458 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 10459 struct cfg80211_wowlan new_triggers = {};
ae33bd81 10460 struct cfg80211_wowlan *ntrig;
964dc9e2 10461 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 10462 int err, i;
6abb9cb9 10463 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 10464 bool regular = false;
ff1b6e69 10465
964dc9e2 10466 if (!wowlan)
ff1b6e69
JB		 10467 return -EOPNOTSUPP;
10468
ae33bd81
JB		 10469 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
10470 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 10471 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 10472 goto set_wakeup;
10473 }
ff1b6e69 10474
bfe2c7b1
JB		 10475 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TRIG,
10476 info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS],
fe52145f 10477 nl80211_wowlan_policy, info->extack);
ff1b6e69
JB		 10478 if (err)
10479 return err;
10480
10481 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
10482 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
10483 return -EINVAL;
10484 new_triggers.any = true;
10485 }
10486
10487 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
10488 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
10489 return -EINVAL;
10490 new_triggers.disconnect = true;
98fc4386 10491 regular = true;
ff1b6e69
JB		 10492 }
10493
10494 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
10495 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
10496 return -EINVAL;
10497 new_triggers.magic_pkt = true;
98fc4386 10498 regular = true;
ff1b6e69
JB		 10499 }
10500
77dbbb13
JB		 10501 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
10502 return -EINVAL;
10503
10504 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
10505 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
10506 return -EINVAL;
10507 new_triggers.gtk_rekey_failure = true;
98fc4386 10508 regular = true;
77dbbb13
JB		 10509 }
10510
10511 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
10512 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
10513 return -EINVAL;
10514 new_triggers.eap_identity_req = true;
98fc4386 10515 regular = true;
77dbbb13
JB		 10516 }
10517
10518 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
10519 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
10520 return -EINVAL;
10521 new_triggers.four_way_handshake = true;
98fc4386 10522 regular = true;
77dbbb13
JB		 10523 }
10524
10525 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
10526 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
10527 return -EINVAL;
10528 new_triggers.rfkill_release = true;
98fc4386 10529 regular = true;
77dbbb13
JB		 10530 }
10531
ff1b6e69
JB		 10532 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
10533 struct nlattr *pat;
10534 int n_patterns = 0;
bb92d199 10535 int rem, pat_len, mask_len, pkt_offset;
50ac6607 10536 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 10537
98fc4386
JB		 10538 regular = true;
10539
ff1b6e69
JB		 10540 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10541 rem)
10542 n_patterns++;
10543 if (n_patterns > wowlan->n_patterns)
10544 return -EINVAL;
10545
10546 new_triggers.patterns = kcalloc(n_patterns,
10547 sizeof(new_triggers.patterns[0]),
10548 GFP_KERNEL);
10549 if (!new_triggers.patterns)
10550 return -ENOMEM;
10551
10552 new_triggers.n_patterns = n_patterns;
10553 i = 0;
10554
10555 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10556 rem) {
922bd80f
JB		 10557 u8 *mask_pat;
10558
bfe2c7b1 10559 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
fe52145f 10560 NULL, info->extack);
ff1b6e69 10561 err = -EINVAL;
50ac6607
AK		 10562 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10563 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 10564 goto error;
50ac6607 10565 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 10566 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 10567 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 10568 goto error;
10569 if (pat_len > wowlan->pattern_max_len ||
10570 pat_len < wowlan->pattern_min_len)
10571 goto error;
10572
50ac6607 10573 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 10574 pkt_offset = 0;
10575 else
10576 pkt_offset = nla_get_u32(
50ac6607 10577 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 10578 if (pkt_offset > wowlan->max_pkt_offset)
10579 goto error;
10580 new_triggers.patterns[i].pkt_offset = pkt_offset;
10581
922bd80f
JB		 10582 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10583 if (!mask_pat) {
ff1b6e69
JB		 10584 err = -ENOMEM;
10585 goto error;
10586 }
922bd80f
JB		 10587 new_triggers.patterns[i].mask = mask_pat;
10588 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 10589 mask_len);
922bd80f
JB		 10590 mask_pat += mask_len;
10591 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 10592 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 10593 memcpy(mask_pat,
50ac6607 10594 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 10595 pat_len);
10596 i++;
10597 }
10598 }
10599
2a0e047e 10600 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 10601 regular = true;
2a0e047e
JB		 10602 err = nl80211_parse_wowlan_tcp(
10603 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
10604 &new_triggers);
10605 if (err)
10606 goto error;
10607 }
10608
8cd4d456 10609 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 10610 regular = true;
8cd4d456
LC		 10611 err = nl80211_parse_wowlan_nd(
10612 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
10613 &new_triggers);
10614 if (err)
10615 goto error;
10616 }
10617
98fc4386
JB		 10618 /* The 'any' trigger means the device continues operating more or less
10619 * as in its normal operation mode and wakes up the host on most of the
10620 * normal interrupts (like packet RX, ...)
10621 * It therefore makes little sense to combine with the more constrained
10622 * wakeup trigger modes.
10623 */
10624 if (new_triggers.any && regular) {
10625 err = -EINVAL;
10626 goto error;
10627 }
10628
ae33bd81
JB		 10629 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
10630 if (!ntrig) {
10631 err = -ENOMEM;
10632 goto error;
ff1b6e69 10633 }
ae33bd81 10634 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 10635 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 10636
ae33bd81 10637 set_wakeup:
6abb9cb9
JB		 10638 if (rdev->ops->set_wakeup &&
10639 prev_enabled != !!rdev->wiphy.wowlan_config)
10640 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 10641
ff1b6e69
JB		 10642 return 0;
10643 error:
10644 for (i = 0; i < new_triggers.n_patterns; i++)
10645 kfree(new_triggers.patterns[i].mask);
10646 kfree(new_triggers.patterns);
2a0e047e
JB		 10647 if (new_triggers.tcp && new_triggers.tcp->sock)
10648 sock_release(new_triggers.tcp->sock);
10649 kfree(new_triggers.tcp);
e5dbe070 10650 kfree(new_triggers.nd_config);
ff1b6e69
JB		 10651 return err;
10652}
dfb89c56 10653#endif
ff1b6e69 10654
be29b99a
AK		 10655static int nl80211_send_coalesce_rules(struct sk_buff *msg,
10656 struct cfg80211_registered_device *rdev)
10657{
10658 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
10659 int i, j, pat_len;
10660 struct cfg80211_coalesce_rules *rule;
10661
10662 if (!rdev->coalesce->n_rules)
10663 return 0;
10664
10665 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
10666 if (!nl_rules)
10667 return -ENOBUFS;
10668
10669 for (i = 0; i < rdev->coalesce->n_rules; i++) {
10670 nl_rule = nla_nest_start(msg, i + 1);
10671 if (!nl_rule)
10672 return -ENOBUFS;
10673
10674 rule = &rdev->coalesce->rules[i];
10675 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
10676 rule->delay))
10677 return -ENOBUFS;
10678
10679 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
10680 rule->condition))
10681 return -ENOBUFS;
10682
10683 nl_pats = nla_nest_start(msg,
10684 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
10685 if (!nl_pats)
10686 return -ENOBUFS;
10687
10688 for (j = 0; j < rule->n_patterns; j++) {
10689 nl_pat = nla_nest_start(msg, j + 1);
10690 if (!nl_pat)
10691 return -ENOBUFS;
10692 pat_len = rule->patterns[j].pattern_len;
10693 if (nla_put(msg, NL80211_PKTPAT_MASK,
10694 DIV_ROUND_UP(pat_len, 8),
10695 rule->patterns[j].mask) ||
10696 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10697 rule->patterns[j].pattern) ||
10698 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10699 rule->patterns[j].pkt_offset))
10700 return -ENOBUFS;
10701 nla_nest_end(msg, nl_pat);
10702 }
10703 nla_nest_end(msg, nl_pats);
10704 nla_nest_end(msg, nl_rule);
10705 }
10706 nla_nest_end(msg, nl_rules);
10707
10708 return 0;
10709}
10710
10711static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
10712{
10713 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10714 struct sk_buff *msg;
10715 void *hdr;
10716
10717 if (!rdev->wiphy.coalesce)
10718 return -EOPNOTSUPP;
10719
10720 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10721 if (!msg)
10722 return -ENOMEM;
10723
10724 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10725 NL80211_CMD_GET_COALESCE);
10726 if (!hdr)
10727 goto nla_put_failure;
10728
10729 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
10730 goto nla_put_failure;
10731
10732 genlmsg_end(msg, hdr);
10733 return genlmsg_reply(msg, info);
10734
10735nla_put_failure:
10736 nlmsg_free(msg);
10737 return -ENOBUFS;
10738}
10739
10740void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
10741{
10742 struct cfg80211_coalesce *coalesce = rdev->coalesce;
10743 int i, j;
10744 struct cfg80211_coalesce_rules *rule;
10745
10746 if (!coalesce)
10747 return;
10748
10749 for (i = 0; i < coalesce->n_rules; i++) {
10750 rule = &coalesce->rules[i];
10751 for (j = 0; j < rule->n_patterns; j++)
10752 kfree(rule->patterns[j].mask);
10753 kfree(rule->patterns);
10754 }
10755 kfree(coalesce->rules);
10756 kfree(coalesce);
10757 rdev->coalesce = NULL;
10758}
10759
10760static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10761 struct nlattr *rule,
10762 struct cfg80211_coalesce_rules *new_rule)
10763{
10764 int err, i;
10765 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10766 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10767 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10768 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10769
bfe2c7b1 10770 err = nla_parse_nested(tb, NL80211_ATTR_COALESCE_RULE_MAX, rule,
fceb6435 10771 nl80211_coalesce_policy, NULL);
be29b99a
AK		 10772 if (err)
10773 return err;
10774
10775 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10776 new_rule->delay =
10777 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10778 if (new_rule->delay > coalesce->max_delay)
10779 return -EINVAL;
10780
10781 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10782 new_rule->condition =
10783 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10784 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10785 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10786 return -EINVAL;
10787
10788 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10789 return -EINVAL;
10790
10791 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10792 rem)
10793 n_patterns++;
10794 if (n_patterns > coalesce->n_patterns)
10795 return -EINVAL;
10796
10797 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10798 GFP_KERNEL);
10799 if (!new_rule->patterns)
10800 return -ENOMEM;
10801
10802 new_rule->n_patterns = n_patterns;
10803 i = 0;
10804
10805 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10806 rem) {
922bd80f
JB		 10807 u8 *mask_pat;
10808
fceb6435 10809 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat, NULL, NULL);
be29b99a
AK		 10810 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10811 !pat_tb[NL80211_PKTPAT_PATTERN])
10812 return -EINVAL;
10813 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10814 mask_len = DIV_ROUND_UP(pat_len, 8);
10815 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10816 return -EINVAL;
10817 if (pat_len > coalesce->pattern_max_len ||
10818 pat_len < coalesce->pattern_min_len)
10819 return -EINVAL;
10820
10821 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10822 pkt_offset = 0;
10823 else
10824 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10825 if (pkt_offset > coalesce->max_pkt_offset)
10826 return -EINVAL;
10827 new_rule->patterns[i].pkt_offset = pkt_offset;
10828
922bd80f
JB		 10829 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10830 if (!mask_pat)
be29b99a 10831 return -ENOMEM;
922bd80f
JB		 10832
10833 new_rule->patterns[i].mask = mask_pat;
10834 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10835 mask_len);
10836
10837 mask_pat += mask_len;
10838 new_rule->patterns[i].pattern = mask_pat;
be29b99a 10839 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 10840 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10841 pat_len);
be29b99a
AK		 10842 i++;
10843 }
10844
10845 return 0;
10846}
10847
10848static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10849{
10850 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10851 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10852 struct cfg80211_coalesce new_coalesce = {};
10853 struct cfg80211_coalesce *n_coalesce;
10854 int err, rem_rule, n_rules = 0, i, j;
10855 struct nlattr *rule;
10856 struct cfg80211_coalesce_rules *tmp_rule;
10857
10858 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10859 return -EOPNOTSUPP;
10860
10861 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10862 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 10863 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 10864 return 0;
10865 }
10866
10867 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10868 rem_rule)
10869 n_rules++;
10870 if (n_rules > coalesce->n_rules)
10871 return -EINVAL;
10872
10873 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10874 GFP_KERNEL);
10875 if (!new_coalesce.rules)
10876 return -ENOMEM;
10877
10878 new_coalesce.n_rules = n_rules;
10879 i = 0;
10880
10881 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10882 rem_rule) {
10883 err = nl80211_parse_coalesce_rule(rdev, rule,
10884 &new_coalesce.rules[i]);
10885 if (err)
10886 goto error;
10887
10888 i++;
10889 }
10890
a1056b1b 10891 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 10892 if (err)
10893 goto error;
10894
10895 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10896 if (!n_coalesce) {
10897 err = -ENOMEM;
10898 goto error;
10899 }
10900 cfg80211_rdev_free_coalesce(rdev);
10901 rdev->coalesce = n_coalesce;
10902
10903 return 0;
10904error:
10905 for (i = 0; i < new_coalesce.n_rules; i++) {
10906 tmp_rule = &new_coalesce.rules[i];
10907 for (j = 0; j < tmp_rule->n_patterns; j++)
10908 kfree(tmp_rule->patterns[j].mask);
10909 kfree(tmp_rule->patterns);
10910 }
10911 kfree(new_coalesce.rules);
10912
10913 return err;
10914}
10915
e5497d76
JB		 10916static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10917{
10918 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10919 struct net_device *dev = info->user_ptr[1];
10920 struct wireless_dev *wdev = dev->ieee80211_ptr;
10921 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10922 struct cfg80211_gtk_rekey_data rekey_data;
10923 int err;
10924
10925 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10926 return -EINVAL;
10927
bfe2c7b1
JB		 10928 err = nla_parse_nested(tb, MAX_NL80211_REKEY_DATA,
10929 info->attrs[NL80211_ATTR_REKEY_DATA],
fe52145f 10930 nl80211_rekey_policy, info->extack);
e5497d76
JB		 10931 if (err)
10932 return err;
10933
10934 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10935 return -ERANGE;
10936 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10937 return -ERANGE;
10938 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10939 return -ERANGE;
10940
78f686ca
JB		 10941 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10942 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10943 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 10944
10945 wdev_lock(wdev);
10946 if (!wdev->current_bss) {
10947 err = -ENOTCONN;
10948 goto out;
10949 }
10950
10951 if (!rdev->ops->set_rekey_data) {
10952 err = -EOPNOTSUPP;
10953 goto out;
10954 }
10955
e35e4d28 10956 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 10957 out:
10958 wdev_unlock(wdev);
10959 return err;
10960}
10961
28946da7
JB		 10962static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10963 struct genl_info *info)
10964{
10965 struct net_device *dev = info->user_ptr[1];
10966 struct wireless_dev *wdev = dev->ieee80211_ptr;
10967
10968 if (wdev->iftype != NL80211_IFTYPE_AP &&
10969 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10970 return -EINVAL;
10971
15e47304 10972 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 10973 return -EBUSY;
10974
15e47304 10975 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 10976 return 0;
10977}
10978
7f6cf311
JB		 10979static int nl80211_probe_client(struct sk_buff *skb,
10980 struct genl_info *info)
10981{
10982 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10983 struct net_device *dev = info->user_ptr[1];
10984 struct wireless_dev *wdev = dev->ieee80211_ptr;
10985 struct sk_buff *msg;
10986 void *hdr;
10987 const u8 *addr;
10988 u64 cookie;
10989 int err;
10990
10991 if (wdev->iftype != NL80211_IFTYPE_AP &&
10992 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10993 return -EOPNOTSUPP;
10994
10995 if (!info->attrs[NL80211_ATTR_MAC])
10996 return -EINVAL;
10997
10998 if (!rdev->ops->probe_client)
10999 return -EOPNOTSUPP;
11000
11001 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11002 if (!msg)
11003 return -ENOMEM;
11004
15e47304 11005 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 11006 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 11007 if (!hdr) {
11008 err = -ENOBUFS;
7f6cf311
JB		 11009 goto free_msg;
11010 }
11011
11012 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11013
e35e4d28 11014 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 11015 if (err)
11016 goto free_msg;
11017
2dad624e
ND		 11018 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11019 NL80211_ATTR_PAD))
9360ffd1 11020 goto nla_put_failure;
7f6cf311
JB		 11021
11022 genlmsg_end(msg, hdr);
11023
11024 return genlmsg_reply(msg, info);
11025
11026 nla_put_failure:
11027 err = -ENOBUFS;
11028 free_msg:
11029 nlmsg_free(msg);
11030 return err;
11031}
11032
5e760230
JB		 11033static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
11034{
11035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 11036 struct cfg80211_beacon_registration *reg, *nreg;
11037 int rv;
5e760230
JB		 11038
11039 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
11040 return -EOPNOTSUPP;
11041
37c73b5f
BG		 11042 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
11043 if (!nreg)
11044 return -ENOMEM;
11045
11046 /* First, check if already registered. */
11047 spin_lock_bh(&rdev->beacon_registrations_lock);
11048 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11049 if (reg->nlportid == info->snd_portid) {
11050 rv = -EALREADY;
11051 goto out_err;
11052 }
11053 }
11054 /* Add it to the list */
11055 nreg->nlportid = info->snd_portid;
11056 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 11057
37c73b5f 11058 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11059
11060 return 0;
37c73b5f
BG		 11061out_err:
11062 spin_unlock_bh(&rdev->beacon_registrations_lock);
11063 kfree(nreg);
11064 return rv;
5e760230
JB		 11065}
11066
98104fde
JB		 11067static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
11068{
11069 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11070 struct wireless_dev *wdev = info->user_ptr[1];
11071 int err;
11072
11073 if (!rdev->ops->start_p2p_device)
11074 return -EOPNOTSUPP;
11075
11076 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
11077 return -EOPNOTSUPP;
11078
73c7da3d 11079 if (wdev_running(wdev))
98104fde
JB		 11080 return 0;
11081
b6a55015
LC		 11082 if (rfkill_blocked(rdev->rfkill))
11083 return -ERFKILL;
98104fde 11084
eeb126e9 11085 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 11086 if (err)
11087 return err;
11088
73c7da3d 11089 wdev->is_running = true;
98104fde 11090 rdev->opencount++;
98104fde
JB		 11091
11092 return 0;
11093}
11094
11095static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
11096{
11097 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11098 struct wireless_dev *wdev = info->user_ptr[1];
11099
11100 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
11101 return -EOPNOTSUPP;
11102
11103 if (!rdev->ops->stop_p2p_device)
11104 return -EOPNOTSUPP;
11105
f9f47529 11106 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 11107
11108 return 0;
11109}
11110
cb3b7d87
AB		 11111static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
11112{
11113 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11114 struct wireless_dev *wdev = info->user_ptr[1];
11115 struct cfg80211_nan_conf conf = {};
11116 int err;
11117
11118 if (wdev->iftype != NL80211_IFTYPE_NAN)
11119 return -EOPNOTSUPP;
11120
eeb04a96 11121 if (wdev_running(wdev))
cb3b7d87
AB		 11122 return -EEXIST;
11123
11124 if (rfkill_blocked(rdev->rfkill))
11125 return -ERFKILL;
11126
11127 if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
11128 return -EINVAL;
11129
cb3b7d87
AB		 11130 conf.master_pref =
11131 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11132 if (!conf.master_pref)
11133 return -EINVAL;
11134
8585989d
LC		 11135 if (info->attrs[NL80211_ATTR_BANDS]) {
11136 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11137
11138 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11139 return -EOPNOTSUPP;
11140
11141 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11142 return -EINVAL;
11143
11144 conf.bands = bands;
11145 }
cb3b7d87
AB		 11146
11147 err = rdev_start_nan(rdev, wdev, &conf);
11148 if (err)
11149 return err;
11150
73c7da3d 11151 wdev->is_running = true;
cb3b7d87
AB		 11152 rdev->opencount++;
11153
11154 return 0;
11155}
11156
11157static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
11158{
11159 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11160 struct wireless_dev *wdev = info->user_ptr[1];
11161
11162 if (wdev->iftype != NL80211_IFTYPE_NAN)
11163 return -EOPNOTSUPP;
11164
11165 cfg80211_stop_nan(rdev, wdev);
11166
11167 return 0;
11168}
11169
a442b761
AB		 11170static int validate_nan_filter(struct nlattr *filter_attr)
11171{
11172 struct nlattr *attr;
11173 int len = 0, n_entries = 0, rem;
11174
11175 nla_for_each_nested(attr, filter_attr, rem) {
11176 len += nla_len(attr);
11177 n_entries++;
11178 }
11179
11180 if (len >= U8_MAX)
11181 return -EINVAL;
11182
11183 return n_entries;
11184}
11185
11186static int handle_nan_filter(struct nlattr *attr_filter,
11187 struct cfg80211_nan_func *func,
11188 bool tx)
11189{
11190 struct nlattr *attr;
11191 int n_entries, rem, i;
11192 struct cfg80211_nan_func_filter *filter;
11193
11194 n_entries = validate_nan_filter(attr_filter);
11195 if (n_entries < 0)
11196 return n_entries;
11197
11198 BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters));
11199
11200 filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL);
11201 if (!filter)
11202 return -ENOMEM;
11203
11204 i = 0;
11205 nla_for_each_nested(attr, attr_filter, rem) {
b15ca182 11206 filter[i].filter = nla_memdup(attr, GFP_KERNEL);
a442b761
AB		 11207 filter[i].len = nla_len(attr);
11208 i++;
11209 }
11210 if (tx) {
11211 func->num_tx_filters = n_entries;
11212 func->tx_filters = filter;
11213 } else {
11214 func->num_rx_filters = n_entries;
11215 func->rx_filters = filter;
11216 }
11217
11218 return 0;
11219}
11220
11221static int nl80211_nan_add_func(struct sk_buff *skb,
11222 struct genl_info *info)
11223{
11224 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11225 struct wireless_dev *wdev = info->user_ptr[1];
11226 struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr;
11227 struct cfg80211_nan_func *func;
11228 struct sk_buff *msg = NULL;
11229 void *hdr = NULL;
11230 int err = 0;
11231
11232 if (wdev->iftype != NL80211_IFTYPE_NAN)
11233 return -EOPNOTSUPP;
11234
73c7da3d 11235 if (!wdev_running(wdev))
a442b761
AB		 11236 return -ENOTCONN;
11237
11238 if (!info->attrs[NL80211_ATTR_NAN_FUNC])
11239 return -EINVAL;
11240
bfe2c7b1
JB		 11241 err = nla_parse_nested(tb, NL80211_NAN_FUNC_ATTR_MAX,
11242 info->attrs[NL80211_ATTR_NAN_FUNC],
fe52145f 11243 nl80211_nan_func_policy, info->extack);
a442b761
AB		 11244 if (err)
11245 return err;
11246
11247 func = kzalloc(sizeof(*func), GFP_KERNEL);
11248 if (!func)
11249 return -ENOMEM;
11250
11251 func->cookie = wdev->wiphy->cookie_counter++;
11252
11253 if (!tb[NL80211_NAN_FUNC_TYPE] ||
11254 nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]) > NL80211_NAN_FUNC_MAX_TYPE) {
11255 err = -EINVAL;
11256 goto out;
11257 }
11258
11259
11260 func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]);
11261
11262 if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) {
11263 err = -EINVAL;
11264 goto out;
11265 }
11266
11267 memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]),
11268 sizeof(func->service_id));
11269
11270 func->close_range =
11271 nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]);
11272
11273 if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) {
11274 func->serv_spec_info_len =
11275 nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]);
11276 func->serv_spec_info =
11277 kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]),
11278 func->serv_spec_info_len,
11279 GFP_KERNEL);
11280 if (!func->serv_spec_info) {
11281 err = -ENOMEM;
11282 goto out;
11283 }
11284 }
11285
11286 if (tb[NL80211_NAN_FUNC_TTL])
11287 func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]);
11288
11289 switch (func->type) {
11290 case NL80211_NAN_FUNC_PUBLISH:
11291 if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) {
11292 err = -EINVAL;
11293 goto out;
11294 }
11295
11296 func->publish_type =
11297 nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]);
11298 func->publish_bcast =
11299 nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]);
11300
11301 if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) &&
11302 func->publish_bcast) {
11303 err = -EINVAL;
11304 goto out;
11305 }
11306 break;
11307 case NL80211_NAN_FUNC_SUBSCRIBE:
11308 func->subscribe_active =
11309 nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]);
11310 break;
11311 case NL80211_NAN_FUNC_FOLLOW_UP:
11312 if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] ||
11313 !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]) {
11314 err = -EINVAL;
11315 goto out;
11316 }
11317
11318 func->followup_id =
11319 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]);
11320 func->followup_reqid =
11321 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]);
11322 memcpy(func->followup_dest.addr,
11323 nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]),
11324 sizeof(func->followup_dest.addr));
11325 if (func->ttl) {
11326 err = -EINVAL;
11327 goto out;
11328 }
11329 break;
11330 default:
11331 err = -EINVAL;
11332 goto out;
11333 }
11334
11335 if (tb[NL80211_NAN_FUNC_SRF]) {
11336 struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR];
11337
bfe2c7b1
JB		 11338 err = nla_parse_nested(srf_tb, NL80211_NAN_SRF_ATTR_MAX,
11339 tb[NL80211_NAN_FUNC_SRF],
fe52145f 11340 nl80211_nan_srf_policy, info->extack);
a442b761
AB		 11341 if (err)
11342 goto out;
11343
11344 func->srf_include =
11345 nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]);
11346
11347 if (srf_tb[NL80211_NAN_SRF_BF]) {
11348 if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] ||
11349 !srf_tb[NL80211_NAN_SRF_BF_IDX]) {
11350 err = -EINVAL;
11351 goto out;
11352 }
11353
11354 func->srf_bf_len =
11355 nla_len(srf_tb[NL80211_NAN_SRF_BF]);
11356 func->srf_bf =
11357 kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]),
11358 func->srf_bf_len, GFP_KERNEL);
11359 if (!func->srf_bf) {
11360 err = -ENOMEM;
11361 goto out;
11362 }
11363
11364 func->srf_bf_idx =
11365 nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]);
11366 } else {
11367 struct nlattr *attr, *mac_attr =
11368 srf_tb[NL80211_NAN_SRF_MAC_ADDRS];
11369 int n_entries, rem, i = 0;
11370
11371 if (!mac_attr) {
11372 err = -EINVAL;
11373 goto out;
11374 }
11375
11376 n_entries = validate_acl_mac_addrs(mac_attr);
11377 if (n_entries <= 0) {
11378 err = -EINVAL;
11379 goto out;
11380 }
11381
11382 func->srf_num_macs = n_entries;
11383 func->srf_macs =
11384 kzalloc(sizeof(*func->srf_macs) * n_entries,
11385 GFP_KERNEL);
11386 if (!func->srf_macs) {
11387 err = -ENOMEM;
11388 goto out;
11389 }
11390
11391 nla_for_each_nested(attr, mac_attr, rem)
11392 memcpy(func->srf_macs[i++].addr, nla_data(attr),
11393 sizeof(*func->srf_macs));
11394 }
11395 }
11396
11397 if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) {
11398 err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER],
11399 func, true);
11400 if (err)
11401 goto out;
11402 }
11403
11404 if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) {
11405 err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER],
11406 func, false);
11407 if (err)
11408 goto out;
11409 }
11410
11411 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11412 if (!msg) {
11413 err = -ENOMEM;
11414 goto out;
11415 }
11416
11417 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11418 NL80211_CMD_ADD_NAN_FUNCTION);
11419 /* This can't really happen - we just allocated 4KB */
11420 if (WARN_ON(!hdr)) {
11421 err = -ENOMEM;
11422 goto out;
11423 }
11424
11425 err = rdev_add_nan_func(rdev, wdev, func);
11426out:
11427 if (err < 0) {
11428 cfg80211_free_nan_func(func);
11429 nlmsg_free(msg);
11430 return err;
11431 }
11432
11433 /* propagate the instance id and cookie to userspace */
11434 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie,
11435 NL80211_ATTR_PAD))
11436 goto nla_put_failure;
11437
11438 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11439 if (!func_attr)
11440 goto nla_put_failure;
11441
11442 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID,
11443 func->instance_id))
11444 goto nla_put_failure;
11445
11446 nla_nest_end(msg, func_attr);
11447
11448 genlmsg_end(msg, hdr);
11449 return genlmsg_reply(msg, info);
11450
11451nla_put_failure:
11452 nlmsg_free(msg);
11453 return -ENOBUFS;
11454}
11455
11456static int nl80211_nan_del_func(struct sk_buff *skb,
11457 struct genl_info *info)
11458{
11459 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11460 struct wireless_dev *wdev = info->user_ptr[1];
11461 u64 cookie;
11462
11463 if (wdev->iftype != NL80211_IFTYPE_NAN)
11464 return -EOPNOTSUPP;
11465
73c7da3d 11466 if (!wdev_running(wdev))
a442b761
AB		 11467 return -ENOTCONN;
11468
11469 if (!info->attrs[NL80211_ATTR_COOKIE])
11470 return -EINVAL;
11471
a442b761
AB		 11472 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
11473
11474 rdev_del_nan_func(rdev, wdev, cookie);
11475
11476 return 0;
11477}
11478
a5a9dcf2
AB		 11479static int nl80211_nan_change_config(struct sk_buff *skb,
11480 struct genl_info *info)
11481{
11482 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11483 struct wireless_dev *wdev = info->user_ptr[1];
11484 struct cfg80211_nan_conf conf = {};
11485 u32 changed = 0;
11486
11487 if (wdev->iftype != NL80211_IFTYPE_NAN)
11488 return -EOPNOTSUPP;
11489
73c7da3d 11490 if (!wdev_running(wdev))
a5a9dcf2
AB		 11491 return -ENOTCONN;
11492
11493 if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) {
11494 conf.master_pref =
11495 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11496 if (conf.master_pref <= 1 || conf.master_pref == 255)
11497 return -EINVAL;
11498
11499 changed |= CFG80211_NAN_CONF_CHANGED_PREF;
11500 }
11501
8585989d
LC		 11502 if (info->attrs[NL80211_ATTR_BANDS]) {
11503 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11504
11505 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11506 return -EOPNOTSUPP;
11507
11508 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11509 return -EINVAL;
11510
11511 conf.bands = bands;
11512 changed |= CFG80211_NAN_CONF_CHANGED_BANDS;
a5a9dcf2
AB		 11513 }
11514
11515 if (!changed)
11516 return -EINVAL;
11517
11518 return rdev_nan_change_conf(rdev, wdev, &conf, changed);
11519}
11520
50bcd31d
AB		 11521void cfg80211_nan_match(struct wireless_dev *wdev,
11522 struct cfg80211_nan_match_params *match, gfp_t gfp)
11523{
11524 struct wiphy *wiphy = wdev->wiphy;
11525 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11526 struct nlattr *match_attr, *local_func_attr, *peer_func_attr;
11527 struct sk_buff *msg;
11528 void *hdr;
11529
11530 if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr))
11531 return;
11532
11533 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11534 if (!msg)
11535 return;
11536
11537 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH);
11538 if (!hdr) {
11539 nlmsg_free(msg);
11540 return;
11541 }
11542
11543 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11544 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11545 wdev->netdev->ifindex)) ||
11546 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11547 NL80211_ATTR_PAD))
11548 goto nla_put_failure;
11549
11550 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie,
11551 NL80211_ATTR_PAD) ||
11552 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr))
11553 goto nla_put_failure;
11554
11555 match_attr = nla_nest_start(msg, NL80211_ATTR_NAN_MATCH);
11556 if (!match_attr)
11557 goto nla_put_failure;
11558
11559 local_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_LOCAL);
11560 if (!local_func_attr)
11561 goto nla_put_failure;
11562
11563 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id))
11564 goto nla_put_failure;
11565
11566 nla_nest_end(msg, local_func_attr);
11567
11568 peer_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_PEER);
11569 if (!peer_func_attr)
11570 goto nla_put_failure;
11571
11572 if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) ||
11573 nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id))
11574 goto nla_put_failure;
11575
11576 if (match->info && match->info_len &&
11577 nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len,
11578 match->info))
11579 goto nla_put_failure;
11580
11581 nla_nest_end(msg, peer_func_attr);
11582 nla_nest_end(msg, match_attr);
11583 genlmsg_end(msg, hdr);
11584
11585 if (!wdev->owner_nlportid)
11586 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11587 msg, 0, NL80211_MCGRP_NAN, gfp);
11588 else
11589 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11590 wdev->owner_nlportid);
11591
11592 return;
11593
11594nla_put_failure:
11595 nlmsg_free(msg);
11596}
11597EXPORT_SYMBOL(cfg80211_nan_match);
11598
368e5a7b
AB		 11599void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
11600 u8 inst_id,
11601 enum nl80211_nan_func_term_reason reason,
11602 u64 cookie, gfp_t gfp)
11603{
11604 struct wiphy *wiphy = wdev->wiphy;
11605 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11606 struct sk_buff *msg;
11607 struct nlattr *func_attr;
11608 void *hdr;
11609
11610 if (WARN_ON(!inst_id))
11611 return;
11612
11613 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11614 if (!msg)
11615 return;
11616
11617 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION);
11618 if (!hdr) {
11619 nlmsg_free(msg);
11620 return;
11621 }
11622
11623 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11624 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11625 wdev->netdev->ifindex)) ||
11626 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11627 NL80211_ATTR_PAD))
11628 goto nla_put_failure;
11629
11630 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11631 NL80211_ATTR_PAD))
11632 goto nla_put_failure;
11633
11634 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11635 if (!func_attr)
11636 goto nla_put_failure;
11637
11638 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) ||
11639 nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason))
11640 goto nla_put_failure;
11641
11642 nla_nest_end(msg, func_attr);
11643 genlmsg_end(msg, hdr);
11644
11645 if (!wdev->owner_nlportid)
11646 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11647 msg, 0, NL80211_MCGRP_NAN, gfp);
11648 else
11649 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11650 wdev->owner_nlportid);
11651
11652 return;
11653
11654nla_put_failure:
11655 nlmsg_free(msg);
11656}
11657EXPORT_SYMBOL(cfg80211_nan_func_terminated);
11658
3713b4e3
JB		 11659static int nl80211_get_protocol_features(struct sk_buff *skb,
11660 struct genl_info *info)
11661{
11662 void *hdr;
11663 struct sk_buff *msg;
11664
11665 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11666 if (!msg)
11667 return -ENOMEM;
11668
11669 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11670 NL80211_CMD_GET_PROTOCOL_FEATURES);
11671 if (!hdr)
11672 goto nla_put_failure;
11673
11674 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
11675 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
11676 goto nla_put_failure;
11677
11678 genlmsg_end(msg, hdr);
11679 return genlmsg_reply(msg, info);
11680
11681 nla_put_failure:
11682 kfree_skb(msg);
11683 return -ENOBUFS;
11684}
11685
355199e0
JM		 11686static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
11687{
11688 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11689 struct cfg80211_update_ft_ies_params ft_params;
11690 struct net_device *dev = info->user_ptr[1];
11691
11692 if (!rdev->ops->update_ft_ies)
11693 return -EOPNOTSUPP;
11694
11695 if (!info->attrs[NL80211_ATTR_MDID] ||
11696 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
11697 return -EINVAL;
11698
11699 memset(&ft_params, 0, sizeof(ft_params));
11700 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
11701 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
11702 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
11703
11704 return rdev_update_ft_ies(rdev, dev, &ft_params);
11705}
11706
5de17984
AS		 11707static int nl80211_crit_protocol_start(struct sk_buff *skb,
11708 struct genl_info *info)
11709{
11710 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11711 struct wireless_dev *wdev = info->user_ptr[1];
11712 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
11713 u16 duration;
11714 int ret;
11715
11716 if (!rdev->ops->crit_proto_start)
11717 return -EOPNOTSUPP;
11718
11719 if (WARN_ON(!rdev->ops->crit_proto_stop))
11720 return -EINVAL;
11721
11722 if (rdev->crit_proto_nlportid)
11723 return -EBUSY;
11724
11725 /* determine protocol if provided */
11726 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
11727 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
11728
11729 if (proto >= NUM_NL80211_CRIT_PROTO)
11730 return -EINVAL;
11731
11732 /* timeout must be provided */
11733 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
11734 return -EINVAL;
11735
11736 duration =
11737 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
11738
11739 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
11740 return -ERANGE;
11741
11742 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
11743 if (!ret)
11744 rdev->crit_proto_nlportid = info->snd_portid;
11745
11746 return ret;
11747}
11748
11749static int nl80211_crit_protocol_stop(struct sk_buff *skb,
11750 struct genl_info *info)
11751{
11752 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11753 struct wireless_dev *wdev = info->user_ptr[1];
11754
11755 if (!rdev->ops->crit_proto_stop)
11756 return -EOPNOTSUPP;
11757
11758 if (rdev->crit_proto_nlportid) {
11759 rdev->crit_proto_nlportid = 0;
11760 rdev_crit_proto_stop(rdev, wdev);
11761 }
11762 return 0;
11763}
11764
ad7e718c
JB		 11765static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
11766{
11767 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11768 struct wireless_dev *wdev =
11769 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
11770 int i, err;
11771 u32 vid, subcmd;
11772
11773 if (!rdev->wiphy.vendor_commands)
11774 return -EOPNOTSUPP;
11775
11776 if (IS_ERR(wdev)) {
11777 err = PTR_ERR(wdev);
11778 if (err != -EINVAL)
11779 return err;
11780 wdev = NULL;
11781 } else if (wdev->wiphy != &rdev->wiphy) {
11782 return -EINVAL;
11783 }
11784
11785 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
11786 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
11787 return -EINVAL;
11788
11789 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
11790 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
11791 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
11792 const struct wiphy_vendor_command *vcmd;
11793 void *data = NULL;
11794 int len = 0;
11795
11796 vcmd = &rdev->wiphy.vendor_commands[i];
11797
11798 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11799 continue;
11800
11801 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11802 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11803 if (!wdev)
11804 return -EINVAL;
11805 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11806 !wdev->netdev)
11807 return -EINVAL;
11808
11809 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
73c7da3d 11810 if (!wdev_running(wdev))
ad7e718c
JB		 11811 return -ENETDOWN;
11812 }
7bdbe400
JB		 11813
11814 if (!vcmd->doit)
11815 return -EOPNOTSUPP;
ad7e718c
JB		 11816 } else {
11817 wdev = NULL;
11818 }
11819
11820 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
11821 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11822 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11823 }
11824
11825 rdev->cur_cmd_info = info;
11826 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
11827 data, len);
11828 rdev->cur_cmd_info = NULL;
11829 return err;
11830 }
11831
11832 return -EOPNOTSUPP;
11833}
11834
7bdbe400
JB		 11835static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
11836 struct netlink_callback *cb,
11837 struct cfg80211_registered_device **rdev,
11838 struct wireless_dev **wdev)
11839{
c90c39da 11840 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
7bdbe400
JB		 11841 u32 vid, subcmd;
11842 unsigned int i;
11843 int vcmd_idx = -1;
11844 int err;
11845 void *data = NULL;
11846 unsigned int data_len = 0;
11847
7bdbe400
JB		 11848 if (cb->args[0]) {
11849 /* subtract the 1 again here */
11850 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
11851 struct wireless_dev *tmp;
11852
ea90e0dc
JB		 11853 if (!wiphy)
11854 return -ENODEV;
7bdbe400
JB		 11855 *rdev = wiphy_to_rdev(wiphy);
11856 *wdev = NULL;
11857
11858 if (cb->args[1]) {
53873f13 11859 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
7bdbe400
JB		 11860 if (tmp->identifier == cb->args[1] - 1) {
11861 *wdev = tmp;
11862 break;
11863 }
11864 }
11865 }
11866
11867 /* keep rtnl locked in successful case */
11868 return 0;
11869 }
11870
fceb6435
JB		 11871 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, attrbuf,
11872 nl80211_fam.maxattr, nl80211_policy, NULL);
7bdbe400 11873 if (err)
ea90e0dc 11874 return err;
7bdbe400 11875
c90c39da 11876 if (!attrbuf[NL80211_ATTR_VENDOR_ID] ||
ea90e0dc
JB		 11877 !attrbuf[NL80211_ATTR_VENDOR_SUBCMD])
11878 return -EINVAL;
7bdbe400 11879
c90c39da 11880 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), attrbuf);
7bdbe400
JB		 11881 if (IS_ERR(*wdev))
11882 *wdev = NULL;
11883
c90c39da 11884 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
ea90e0dc
JB		 11885 if (IS_ERR(*rdev))
11886 return PTR_ERR(*rdev);
7bdbe400 11887
c90c39da
JB		 11888 vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]);
11889 subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
7bdbe400
JB		 11890
11891 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
11892 const struct wiphy_vendor_command *vcmd;
11893
11894 vcmd = &(*rdev)->wiphy.vendor_commands[i];
11895
11896 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11897 continue;
11898
ea90e0dc
JB		 11899 if (!vcmd->dumpit)
11900 return -EOPNOTSUPP;
7bdbe400
JB		 11901
11902 vcmd_idx = i;
11903 break;
11904 }
11905
ea90e0dc
JB		 11906 if (vcmd_idx < 0)
11907 return -EOPNOTSUPP;
7bdbe400 11908
c90c39da
JB		 11909 if (attrbuf[NL80211_ATTR_VENDOR_DATA]) {
11910 data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]);
11911 data_len = nla_len(attrbuf[NL80211_ATTR_VENDOR_DATA]);
7bdbe400
JB		 11912 }
11913
11914 /* 0 is the first index - add 1 to parse only once */
11915 cb->args[0] = (*rdev)->wiphy_idx + 1;
11916 /* add 1 to know if it was NULL */
11917 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
11918 cb->args[2] = vcmd_idx;
11919 cb->args[3] = (unsigned long)data;
11920 cb->args[4] = data_len;
11921
11922 /* keep rtnl locked in successful case */
11923 return 0;
7bdbe400
JB		 11924}
11925
11926static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
11927 struct netlink_callback *cb)
11928{
11929 struct cfg80211_registered_device *rdev;
11930 struct wireless_dev *wdev;
11931 unsigned int vcmd_idx;
11932 const struct wiphy_vendor_command *vcmd;
11933 void *data;
11934 int data_len;
11935 int err;
11936 struct nlattr *vendor_data;
11937
ea90e0dc 11938 rtnl_lock();
7bdbe400
JB		 11939 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
11940 if (err)
ea90e0dc 11941 goto out;
7bdbe400
JB		 11942
11943 vcmd_idx = cb->args[2];
11944 data = (void *)cb->args[3];
11945 data_len = cb->args[4];
11946 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
11947
11948 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11949 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
ea90e0dc
JB		 11950 if (!wdev) {
11951 err = -EINVAL;
11952 goto out;
11953 }
7bdbe400 11954 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
ea90e0dc
JB		 11955 !wdev->netdev) {
11956 err = -EINVAL;
11957 goto out;
11958 }
7bdbe400
JB		 11959
11960 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
ea90e0dc
JB		 11961 if (!wdev_running(wdev)) {
11962 err = -ENETDOWN;
11963 goto out;
11964 }
7bdbe400
JB		 11965 }
11966 }
11967
11968 while (1) {
11969 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
11970 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11971 NL80211_CMD_VENDOR);
11972 if (!hdr)
11973 break;
11974
11975 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 11976 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
11977 wdev_id(wdev),
11978 NL80211_ATTR_PAD))) {
7bdbe400
JB		 11979 genlmsg_cancel(skb, hdr);
11980 break;
11981 }
11982
11983 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
11984 if (!vendor_data) {
11985 genlmsg_cancel(skb, hdr);
11986 break;
11987 }
11988
11989 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
11990 (unsigned long *)&cb->args[5]);
11991 nla_nest_end(skb, vendor_data);
11992
11993 if (err == -ENOBUFS || err == -ENOENT) {
11994 genlmsg_cancel(skb, hdr);
11995 break;
11996 } else if (err) {
11997 genlmsg_cancel(skb, hdr);
11998 goto out;
11999 }
12000
12001 genlmsg_end(skb, hdr);
12002 }
12003
12004 err = skb->len;
12005 out:
12006 rtnl_unlock();
12007 return err;
12008}
12009
ad7e718c
JB		 12010struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
12011 enum nl80211_commands cmd,
12012 enum nl80211_attrs attr,
12013 int approxlen)
12014{
f26cbf40 12015 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 12016
12017 if (WARN_ON(!rdev->cur_cmd_info))
12018 return NULL;
12019
6c09e791 12020 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 12021 rdev->cur_cmd_info->snd_portid,
12022 rdev->cur_cmd_info->snd_seq,
567ffc35 12023 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 12024}
12025EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
12026
12027int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
12028{
12029 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
12030 void *hdr = ((void **)skb->cb)[1];
12031 struct nlattr *data = ((void **)skb->cb)[2];
12032
bd8c78e7
JB		 12033 /* clear CB data for netlink core to own from now on */
12034 memset(skb->cb, 0, sizeof(skb->cb));
12035
ad7e718c
JB		 12036 if (WARN_ON(!rdev->cur_cmd_info)) {
12037 kfree_skb(skb);
12038 return -EINVAL;
12039 }
12040
12041 nla_nest_end(skb, data);
12042 genlmsg_end(skb, hdr);
12043 return genlmsg_reply(skb, rdev->cur_cmd_info);
12044}
12045EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
12046
fa9ffc74
KP		 12047static int nl80211_set_qos_map(struct sk_buff *skb,
12048 struct genl_info *info)
12049{
12050 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12051 struct cfg80211_qos_map *qos_map = NULL;
12052 struct net_device *dev = info->user_ptr[1];
12053 u8 *pos, len, num_des, des_len, des;
12054 int ret;
12055
12056 if (!rdev->ops->set_qos_map)
12057 return -EOPNOTSUPP;
12058
12059 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
12060 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
12061 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
12062
12063 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
12064 len > IEEE80211_QOS_MAP_LEN_MAX)
12065 return -EINVAL;
12066
12067 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
12068 if (!qos_map)
12069 return -ENOMEM;
12070
12071 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
12072 if (num_des) {
12073 des_len = num_des *
12074 sizeof(struct cfg80211_dscp_exception);
12075 memcpy(qos_map->dscp_exception, pos, des_len);
12076 qos_map->num_des = num_des;
12077 for (des = 0; des < num_des; des++) {
12078 if (qos_map->dscp_exception[des].up > 7) {
12079 kfree(qos_map);
12080 return -EINVAL;
12081 }
12082 }
12083 pos += des_len;
12084 }
12085 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
12086 }
12087
12088 wdev_lock(dev->ieee80211_ptr);
12089 ret = nl80211_key_allowed(dev->ieee80211_ptr);
12090 if (!ret)
12091 ret = rdev_set_qos_map(rdev, dev, qos_map);
12092 wdev_unlock(dev->ieee80211_ptr);
12093
12094 kfree(qos_map);
12095 return ret;
12096}
12097
960d01ac
JB		 12098static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
12099{
12100 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12101 struct net_device *dev = info->user_ptr[1];
12102 struct wireless_dev *wdev = dev->ieee80211_ptr;
12103 const u8 *peer;
12104 u8 tsid, up;
12105 u16 admitted_time = 0;
12106 int err;
12107
723e73ac 12108 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 12109 return -EOPNOTSUPP;
12110
12111 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
12112 !info->attrs[NL80211_ATTR_USER_PRIO])
12113 return -EINVAL;
12114
12115 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
12116 if (tsid >= IEEE80211_NUM_TIDS)
12117 return -EINVAL;
12118
12119 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
12120 if (up >= IEEE80211_NUM_UPS)
12121 return -EINVAL;
12122
12123 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 12124 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 12125 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 12126 * need more attributes for that (e.g. BA session requirement);
12127 * change the WMM adminssion test above to allow both then
960d01ac
JB		 12128 */
12129 return -EINVAL;
12130 }
12131
12132 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
12133
12134 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
12135 admitted_time =
12136 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
12137 if (!admitted_time)
12138 return -EINVAL;
12139 }
12140
12141 wdev_lock(wdev);
12142 switch (wdev->iftype) {
12143 case NL80211_IFTYPE_STATION:
12144 case NL80211_IFTYPE_P2P_CLIENT:
12145 if (wdev->current_bss)
12146 break;
12147 err = -ENOTCONN;
12148 goto out;
12149 default:
12150 err = -EOPNOTSUPP;
12151 goto out;
12152 }
12153
12154 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
12155
12156 out:
12157 wdev_unlock(wdev);
12158 return err;
12159}
12160
12161static int nl80211_del_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;
12168 int err;
12169
12170 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
12171 return -EINVAL;
12172
12173 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
12174 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
12175
12176 wdev_lock(wdev);
12177 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
12178 wdev_unlock(wdev);
12179
12180 return err;
12181}
12182
1057d35e
AN		 12183static int nl80211_tdls_channel_switch(struct sk_buff *skb,
12184 struct genl_info *info)
12185{
12186 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12187 struct net_device *dev = info->user_ptr[1];
12188 struct wireless_dev *wdev = dev->ieee80211_ptr;
12189 struct cfg80211_chan_def chandef = {};
12190 const u8 *addr;
12191 u8 oper_class;
12192 int err;
12193
12194 if (!rdev->ops->tdls_channel_switch ||
12195 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12196 return -EOPNOTSUPP;
12197
12198 switch (dev->ieee80211_ptr->iftype) {
12199 case NL80211_IFTYPE_STATION:
12200 case NL80211_IFTYPE_P2P_CLIENT:
12201 break;
12202 default:
12203 return -EOPNOTSUPP;
12204 }
12205
12206 if (!info->attrs[NL80211_ATTR_MAC] ||
12207 !info->attrs[NL80211_ATTR_OPER_CLASS])
12208 return -EINVAL;
12209
12210 err = nl80211_parse_chandef(rdev, info, &chandef);
12211 if (err)
12212 return err;
12213
12214 /*
12215 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
12216 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
12217 * specification is not defined for them.
12218 */
57fbcce3 12219 if (chandef.chan->band == NL80211_BAND_2GHZ &&
1057d35e
AN		 12220 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
12221 chandef.width != NL80211_CHAN_WIDTH_20)
12222 return -EINVAL;
12223
12224 /* we will be active on the TDLS link */
923b352f
AN		 12225 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
12226 wdev->iftype))
1057d35e
AN		 12227 return -EINVAL;
12228
12229 /* don't allow switching to DFS channels */
12230 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
12231 return -EINVAL;
12232
12233 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12234 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
12235
12236 wdev_lock(wdev);
12237 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
12238 wdev_unlock(wdev);
12239
12240 return err;
12241}
12242
12243static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
12244 struct genl_info *info)
12245{
12246 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12247 struct net_device *dev = info->user_ptr[1];
12248 struct wireless_dev *wdev = dev->ieee80211_ptr;
12249 const u8 *addr;
12250
12251 if (!rdev->ops->tdls_channel_switch ||
12252 !rdev->ops->tdls_cancel_channel_switch ||
12253 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12254 return -EOPNOTSUPP;
12255
12256 switch (dev->ieee80211_ptr->iftype) {
12257 case NL80211_IFTYPE_STATION:
12258 case NL80211_IFTYPE_P2P_CLIENT:
12259 break;
12260 default:
12261 return -EOPNOTSUPP;
12262 }
12263
12264 if (!info->attrs[NL80211_ATTR_MAC])
12265 return -EINVAL;
12266
12267 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12268
12269 wdev_lock(wdev);
12270 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
12271 wdev_unlock(wdev);
12272
12273 return 0;
12274}
12275
ce0ce13a
MB		 12276static int nl80211_set_multicast_to_unicast(struct sk_buff *skb,
12277 struct genl_info *info)
12278{
12279 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12280 struct net_device *dev = info->user_ptr[1];
12281 struct wireless_dev *wdev = dev->ieee80211_ptr;
12282 const struct nlattr *nla;
12283 bool enabled;
12284
ce0ce13a
MB		 12285 if (!rdev->ops->set_multicast_to_unicast)
12286 return -EOPNOTSUPP;
12287
12288 if (wdev->iftype != NL80211_IFTYPE_AP &&
12289 wdev->iftype != NL80211_IFTYPE_P2P_GO)
12290 return -EOPNOTSUPP;
12291
12292 nla = info->attrs[NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED];
12293 enabled = nla_get_flag(nla);
12294
12295 return rdev_set_multicast_to_unicast(rdev, dev, enabled);
12296}
12297
3a00df57
AS		 12298static int nl80211_set_pmk(struct sk_buff *skb, struct genl_info *info)
12299{
12300 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12301 struct net_device *dev = info->user_ptr[1];
12302 struct wireless_dev *wdev = dev->ieee80211_ptr;
12303 struct cfg80211_pmk_conf pmk_conf = {};
12304 int ret;
12305
12306 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12307 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12308 return -EOPNOTSUPP;
12309
12310 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12311 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
12312 return -EOPNOTSUPP;
12313
12314 if (!info->attrs[NL80211_ATTR_MAC] || !info->attrs[NL80211_ATTR_PMK])
12315 return -EINVAL;
12316
12317 wdev_lock(wdev);
12318 if (!wdev->current_bss) {
12319 ret = -ENOTCONN;
12320 goto out;
12321 }
12322
12323 pmk_conf.aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
12324 if (memcmp(pmk_conf.aa, wdev->current_bss->pub.bssid, ETH_ALEN)) {
12325 ret = -EINVAL;
12326 goto out;
12327 }
12328
12329 pmk_conf.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
12330 pmk_conf.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
12331 if (pmk_conf.pmk_len != WLAN_PMK_LEN &&
12332 pmk_conf.pmk_len != WLAN_PMK_LEN_SUITE_B_192) {
12333 ret = -EINVAL;
12334 goto out;
12335 }
12336
12337 if (info->attrs[NL80211_ATTR_PMKR0_NAME]) {
12338 int r0_name_len = nla_len(info->attrs[NL80211_ATTR_PMKR0_NAME]);
12339
12340 if (r0_name_len != WLAN_PMK_NAME_LEN) {
12341 ret = -EINVAL;
12342 goto out;
12343 }
12344
12345 pmk_conf.pmk_r0_name =
12346 nla_data(info->attrs[NL80211_ATTR_PMKR0_NAME]);
12347 }
12348
12349 ret = rdev_set_pmk(rdev, dev, &pmk_conf);
12350out:
12351 wdev_unlock(wdev);
12352 return ret;
12353}
12354
12355static int nl80211_del_pmk(struct sk_buff *skb, struct genl_info *info)
12356{
12357 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12358 struct net_device *dev = info->user_ptr[1];
12359 struct wireless_dev *wdev = dev->ieee80211_ptr;
12360 const u8 *aa;
12361 int ret;
12362
12363 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12364 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12365 return -EOPNOTSUPP;
12366
12367 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12368 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
12369 return -EOPNOTSUPP;
12370
12371 if (!info->attrs[NL80211_ATTR_MAC])
12372 return -EINVAL;
12373
12374 wdev_lock(wdev);
12375 aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
12376 ret = rdev_del_pmk(rdev, dev, aa);
12377 wdev_unlock(wdev);
12378
12379 return ret;
12380}
12381
4c476991
JB		 12382#define NL80211_FLAG_NEED_WIPHY 0x01
12383#define NL80211_FLAG_NEED_NETDEV 0x02
12384#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 12385#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
12386#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
12387 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 12388#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 12389/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 12390#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
12391 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 12392#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 12393
f84f771d 12394static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 12395 struct genl_info *info)
12396{
12397 struct cfg80211_registered_device *rdev;
89a54e48 12398 struct wireless_dev *wdev;
4c476991 12399 struct net_device *dev;
4c476991
JB		 12400 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
12401
12402 if (rtnl)
12403 rtnl_lock();
12404
12405 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 12406 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 12407 if (IS_ERR(rdev)) {
12408 if (rtnl)
12409 rtnl_unlock();
12410 return PTR_ERR(rdev);
12411 }
12412 info->user_ptr[0] = rdev;
1bf614ef
JB		 12413 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
12414 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 12415 ASSERT_RTNL();
12416
89a54e48
JB		 12417 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
12418 info->attrs);
12419 if (IS_ERR(wdev)) {
4c476991
JB		 12420 if (rtnl)
12421 rtnl_unlock();
89a54e48 12422 return PTR_ERR(wdev);
4c476991 12423 }
89a54e48 12424
89a54e48 12425 dev = wdev->netdev;
f26cbf40 12426 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 12427
1bf614ef
JB		 12428 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
12429 if (!dev) {
1bf614ef
JB		 12430 if (rtnl)
12431 rtnl_unlock();
12432 return -EINVAL;
12433 }
12434
12435 info->user_ptr[1] = dev;
12436 } else {
12437 info->user_ptr[1] = wdev;
41265714 12438 }
1bf614ef 12439
73c7da3d
AVS		 12440 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
12441 !wdev_running(wdev)) {
12442 if (rtnl)
12443 rtnl_unlock();
12444 return -ENETDOWN;
12445 }
1bf614ef 12446
73c7da3d 12447 if (dev)
1bf614ef 12448 dev_hold(dev);
89a54e48 12449
4c476991 12450 info->user_ptr[0] = rdev;
4c476991
JB		 12451 }
12452
12453 return 0;
12454}
12455
f84f771d 12456static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 12457 struct genl_info *info)
12458{
1bf614ef
JB		 12459 if (info->user_ptr[1]) {
12460 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
12461 struct wireless_dev *wdev = info->user_ptr[1];
12462
12463 if (wdev->netdev)
12464 dev_put(wdev->netdev);
12465 } else {
12466 dev_put(info->user_ptr[1]);
12467 }
12468 }
5393b917 12469
4c476991
JB		 12470 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
12471 rtnl_unlock();
5393b917
JB		 12472
12473 /* If needed, clear the netlink message payload from the SKB
12474 * as it might contain key data that shouldn't stick around on
12475 * the heap after the SKB is freed. The netlink message header
12476 * is still needed for further processing, so leave it intact.
12477 */
12478 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
12479 struct nlmsghdr *nlh = nlmsg_hdr(skb);
12480
12481 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
12482 }
4c476991
JB		 12483}
12484
4534de83 12485static const struct genl_ops nl80211_ops[] = {
55682965
JB		 12486 {
12487 .cmd = NL80211_CMD_GET_WIPHY,
12488 .doit = nl80211_get_wiphy,
12489 .dumpit = nl80211_dump_wiphy,
86e8cf98 12490 .done = nl80211_dump_wiphy_done,
55682965
JB		 12491 .policy = nl80211_policy,
12492 /* can be retrieved by unprivileged users */
5fe231e8
JB		 12493 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12494 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12495 },
12496 {
12497 .cmd = NL80211_CMD_SET_WIPHY,
12498 .doit = nl80211_set_wiphy,
12499 .policy = nl80211_policy,
5617c6cd 12500 .flags = GENL_UNS_ADMIN_PERM,
4c476991 12501 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 12502 },
12503 {
12504 .cmd = NL80211_CMD_GET_INTERFACE,
12505 .doit = nl80211_get_interface,
12506 .dumpit = nl80211_dump_interface,
12507 .policy = nl80211_policy,
12508 /* can be retrieved by unprivileged users */
5fe231e8
JB		 12509 .internal_flags = NL80211_FLAG_NEED_WDEV |
12510 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12511 },
12512 {
12513 .cmd = NL80211_CMD_SET_INTERFACE,
12514 .doit = nl80211_set_interface,
12515 .policy = nl80211_policy,
5617c6cd 12516 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12517 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12518 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12519 },
12520 {
12521 .cmd = NL80211_CMD_NEW_INTERFACE,
12522 .doit = nl80211_new_interface,
12523 .policy = nl80211_policy,
5617c6cd 12524 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12525 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12526 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12527 },
12528 {
12529 .cmd = NL80211_CMD_DEL_INTERFACE,
12530 .doit = nl80211_del_interface,
12531 .policy = nl80211_policy,
5617c6cd 12532 .flags = GENL_UNS_ADMIN_PERM,
84efbb84 12533 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 12534 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 12535 },
12536 {
12537 .cmd = NL80211_CMD_GET_KEY,
12538 .doit = nl80211_get_key,
12539 .policy = nl80211_policy,
5617c6cd 12540 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12541 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12542 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 12543 },
12544 {
12545 .cmd = NL80211_CMD_SET_KEY,
12546 .doit = nl80211_set_key,
12547 .policy = nl80211_policy,
5617c6cd 12548 .flags = GENL_UNS_ADMIN_PERM,
41265714 12549 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12550 NL80211_FLAG_NEED_RTNL |
12551 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 12552 },
12553 {
12554 .cmd = NL80211_CMD_NEW_KEY,
12555 .doit = nl80211_new_key,
12556 .policy = nl80211_policy,
5617c6cd 12557 .flags = GENL_UNS_ADMIN_PERM,
41265714 12558 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12559 NL80211_FLAG_NEED_RTNL |
12560 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 12561 },
12562 {
12563 .cmd = NL80211_CMD_DEL_KEY,
12564 .doit = nl80211_del_key,
12565 .policy = nl80211_policy,
5617c6cd 12566 .flags = GENL_UNS_ADMIN_PERM,
41265714 12567 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12568 NL80211_FLAG_NEED_RTNL,
55682965 12569 },
ed1b6cc7
JB		 12570 {
12571 .cmd = NL80211_CMD_SET_BEACON,
12572 .policy = nl80211_policy,
5617c6cd 12573 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12574 .doit = nl80211_set_beacon,
2b5f8b0b 12575 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12576 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 12577 },
12578 {
8860020e 12579 .cmd = NL80211_CMD_START_AP,
ed1b6cc7 12580 .policy = nl80211_policy,
5617c6cd 12581 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12582 .doit = nl80211_start_ap,
2b5f8b0b 12583 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12584 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 12585 },
12586 {
8860020e 12587 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7 12588 .policy = nl80211_policy,
5617c6cd 12589 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12590 .doit = nl80211_stop_ap,
2b5f8b0b 12591 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12592 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 12593 },
5727ef1b
JB		 12594 {
12595 .cmd = NL80211_CMD_GET_STATION,
12596 .doit = nl80211_get_station,
2ec600d6 12597 .dumpit = nl80211_dump_station,
5727ef1b 12598 .policy = nl80211_policy,
4c476991
JB		 12599 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12600 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12601 },
12602 {
12603 .cmd = NL80211_CMD_SET_STATION,
12604 .doit = nl80211_set_station,
12605 .policy = nl80211_policy,
5617c6cd 12606 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12607 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12608 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12609 },
12610 {
12611 .cmd = NL80211_CMD_NEW_STATION,
12612 .doit = nl80211_new_station,
12613 .policy = nl80211_policy,
5617c6cd 12614 .flags = GENL_UNS_ADMIN_PERM,
41265714 12615 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12616 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12617 },
12618 {
12619 .cmd = NL80211_CMD_DEL_STATION,
12620 .doit = nl80211_del_station,
12621 .policy = nl80211_policy,
5617c6cd 12622 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12623 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12624 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12625 },
12626 {
12627 .cmd = NL80211_CMD_GET_MPATH,
12628 .doit = nl80211_get_mpath,
12629 .dumpit = nl80211_dump_mpath,
12630 .policy = nl80211_policy,
5617c6cd 12631 .flags = GENL_UNS_ADMIN_PERM,
41265714 12632 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12633 NL80211_FLAG_NEED_RTNL,
2ec600d6 12634 },
66be7d2b
HR		 12635 {
12636 .cmd = NL80211_CMD_GET_MPP,
12637 .doit = nl80211_get_mpp,
12638 .dumpit = nl80211_dump_mpp,
12639 .policy = nl80211_policy,
5617c6cd 12640 .flags = GENL_UNS_ADMIN_PERM,
66be7d2b
HR		 12641 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12642 NL80211_FLAG_NEED_RTNL,
12643 },
2ec600d6
LCC		 12644 {
12645 .cmd = NL80211_CMD_SET_MPATH,
12646 .doit = nl80211_set_mpath,
12647 .policy = nl80211_policy,
5617c6cd 12648 .flags = GENL_UNS_ADMIN_PERM,
41265714 12649 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12650 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12651 },
12652 {
12653 .cmd = NL80211_CMD_NEW_MPATH,
12654 .doit = nl80211_new_mpath,
12655 .policy = nl80211_policy,
5617c6cd 12656 .flags = GENL_UNS_ADMIN_PERM,
41265714 12657 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12658 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12659 },
12660 {
12661 .cmd = NL80211_CMD_DEL_MPATH,
12662 .doit = nl80211_del_mpath,
12663 .policy = nl80211_policy,
5617c6cd 12664 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12665 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12666 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 12667 },
12668 {
12669 .cmd = NL80211_CMD_SET_BSS,
12670 .doit = nl80211_set_bss,
12671 .policy = nl80211_policy,
5617c6cd 12672 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12673 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12674 NL80211_FLAG_NEED_RTNL,
b2e1b302 12675 },
f130347c
LR		 12676 {
12677 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 12678 .doit = nl80211_get_reg_do,
12679 .dumpit = nl80211_get_reg_dump,
f130347c 12680 .policy = nl80211_policy,
5fe231e8 12681 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 12682 /* can be retrieved by unprivileged users */
12683 },
b6863036 12684#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 12685 {
12686 .cmd = NL80211_CMD_SET_REG,
12687 .doit = nl80211_set_reg,
12688 .policy = nl80211_policy,
12689 .flags = GENL_ADMIN_PERM,
5fe231e8 12690 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 12691 },
b6863036 12692#endif
b2e1b302
LR		 12693 {
12694 .cmd = NL80211_CMD_REQ_SET_REG,
12695 .doit = nl80211_req_set_reg,
12696 .policy = nl80211_policy,
93da9cc1 12697 .flags = GENL_ADMIN_PERM,
12698 },
12699 {
24bdd9f4
JC		 12700 .cmd = NL80211_CMD_GET_MESH_CONFIG,
12701 .doit = nl80211_get_mesh_config,
93da9cc1 12702 .policy = nl80211_policy,
12703 /* can be retrieved by unprivileged users */
2b5f8b0b 12704 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12705 NL80211_FLAG_NEED_RTNL,
93da9cc1 12706 },
12707 {
24bdd9f4
JC		 12708 .cmd = NL80211_CMD_SET_MESH_CONFIG,
12709 .doit = nl80211_update_mesh_config,
93da9cc1 12710 .policy = nl80211_policy,
5617c6cd 12711 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c 12712 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12713 NL80211_FLAG_NEED_RTNL,
9aed3cc1 12714 },
2a519311
JB		 12715 {
12716 .cmd = NL80211_CMD_TRIGGER_SCAN,
12717 .doit = nl80211_trigger_scan,
12718 .policy = nl80211_policy,
5617c6cd 12719 .flags = GENL_UNS_ADMIN_PERM,
fd014284 12720 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12721 NL80211_FLAG_NEED_RTNL,
2a519311 12722 },
91d3ab46
VK		 12723 {
12724 .cmd = NL80211_CMD_ABORT_SCAN,
12725 .doit = nl80211_abort_scan,
12726 .policy = nl80211_policy,
5617c6cd 12727 .flags = GENL_UNS_ADMIN_PERM,
91d3ab46
VK		 12728 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12729 NL80211_FLAG_NEED_RTNL,
12730 },
2a519311
JB		 12731 {
12732 .cmd = NL80211_CMD_GET_SCAN,
12733 .policy = nl80211_policy,
12734 .dumpit = nl80211_dump_scan,
12735 },
807f8a8c
LC		 12736 {
12737 .cmd = NL80211_CMD_START_SCHED_SCAN,
12738 .doit = nl80211_start_sched_scan,
12739 .policy = nl80211_policy,
5617c6cd 12740 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 12741 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12742 NL80211_FLAG_NEED_RTNL,
12743 },
12744 {
12745 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
12746 .doit = nl80211_stop_sched_scan,
12747 .policy = nl80211_policy,
5617c6cd 12748 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 12749 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12750 NL80211_FLAG_NEED_RTNL,
12751 },
636a5d36
JM		 12752 {
12753 .cmd = NL80211_CMD_AUTHENTICATE,
12754 .doit = nl80211_authenticate,
12755 .policy = nl80211_policy,
5617c6cd 12756 .flags = GENL_UNS_ADMIN_PERM,
41265714 12757 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12758 NL80211_FLAG_NEED_RTNL |
12759 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 12760 },
12761 {
12762 .cmd = NL80211_CMD_ASSOCIATE,
12763 .doit = nl80211_associate,
12764 .policy = nl80211_policy,
5617c6cd 12765 .flags = GENL_UNS_ADMIN_PERM,
41265714 12766 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12767 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 12768 },
12769 {
12770 .cmd = NL80211_CMD_DEAUTHENTICATE,
12771 .doit = nl80211_deauthenticate,
12772 .policy = nl80211_policy,
5617c6cd 12773 .flags = GENL_UNS_ADMIN_PERM,
41265714 12774 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12775 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 12776 },
12777 {
12778 .cmd = NL80211_CMD_DISASSOCIATE,
12779 .doit = nl80211_disassociate,
12780 .policy = nl80211_policy,
5617c6cd 12781 .flags = GENL_UNS_ADMIN_PERM,
41265714 12782 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12783 NL80211_FLAG_NEED_RTNL,
636a5d36 12784 },
04a773ad
JB		 12785 {
12786 .cmd = NL80211_CMD_JOIN_IBSS,
12787 .doit = nl80211_join_ibss,
12788 .policy = nl80211_policy,
5617c6cd 12789 .flags = GENL_UNS_ADMIN_PERM,
41265714 12790 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12791 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 12792 },
12793 {
12794 .cmd = NL80211_CMD_LEAVE_IBSS,
12795 .doit = nl80211_leave_ibss,
12796 .policy = nl80211_policy,
5617c6cd 12797 .flags = GENL_UNS_ADMIN_PERM,
41265714 12798 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12799 NL80211_FLAG_NEED_RTNL,
04a773ad 12800 },
aff89a9b
JB		 12801#ifdef CONFIG_NL80211_TESTMODE
12802 {
12803 .cmd = NL80211_CMD_TESTMODE,
12804 .doit = nl80211_testmode_do,
71063f0e 12805 .dumpit = nl80211_testmode_dump,
aff89a9b 12806 .policy = nl80211_policy,
5617c6cd 12807 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12808 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12809 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 12810 },
12811#endif
b23aa676
SO		 12812 {
12813 .cmd = NL80211_CMD_CONNECT,
12814 .doit = nl80211_connect,
12815 .policy = nl80211_policy,
5617c6cd 12816 .flags = GENL_UNS_ADMIN_PERM,
41265714 12817 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12818 NL80211_FLAG_NEED_RTNL,
b23aa676 12819 },
088e8df8 12820 {
12821 .cmd = NL80211_CMD_UPDATE_CONNECT_PARAMS,
12822 .doit = nl80211_update_connect_params,
12823 .policy = nl80211_policy,
12824 .flags = GENL_ADMIN_PERM,
12825 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12826 NL80211_FLAG_NEED_RTNL,
12827 },
b23aa676
SO		 12828 {
12829 .cmd = NL80211_CMD_DISCONNECT,
12830 .doit = nl80211_disconnect,
12831 .policy = nl80211_policy,
5617c6cd 12832 .flags = GENL_UNS_ADMIN_PERM,
41265714 12833 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12834 NL80211_FLAG_NEED_RTNL,
b23aa676 12835 },
463d0183
JB		 12836 {
12837 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
12838 .doit = nl80211_wiphy_netns,
12839 .policy = nl80211_policy,
5617c6cd 12840 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12841 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12842 NL80211_FLAG_NEED_RTNL,
463d0183 12843 },
61fa713c
HS		 12844 {
12845 .cmd = NL80211_CMD_GET_SURVEY,
12846 .policy = nl80211_policy,
12847 .dumpit = nl80211_dump_survey,
12848 },
67fbb16b
SO		 12849 {
12850 .cmd = NL80211_CMD_SET_PMKSA,
12851 .doit = nl80211_setdel_pmksa,
12852 .policy = nl80211_policy,
5617c6cd 12853 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12854 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12855 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 12856 },
12857 {
12858 .cmd = NL80211_CMD_DEL_PMKSA,
12859 .doit = nl80211_setdel_pmksa,
12860 .policy = nl80211_policy,
5617c6cd 12861 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12862 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12863 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 12864 },
12865 {
12866 .cmd = NL80211_CMD_FLUSH_PMKSA,
12867 .doit = nl80211_flush_pmksa,
12868 .policy = nl80211_policy,
5617c6cd 12869 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12870 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12871 NL80211_FLAG_NEED_RTNL,
67fbb16b 12872 },
9588bbd5
JM		 12873 {
12874 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
12875 .doit = nl80211_remain_on_channel,
12876 .policy = nl80211_policy,
5617c6cd 12877 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12878 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12879 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 12880 },
12881 {
12882 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12883 .doit = nl80211_cancel_remain_on_channel,
12884 .policy = nl80211_policy,
5617c6cd 12885 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12886 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12887 NL80211_FLAG_NEED_RTNL,
9588bbd5 12888 },
13ae75b1
JM		 12889 {
12890 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
12891 .doit = nl80211_set_tx_bitrate_mask,
12892 .policy = nl80211_policy,
5617c6cd 12893 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12894 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12895 NL80211_FLAG_NEED_RTNL,
13ae75b1 12896 },
026331c4 12897 {
2e161f78
JB		 12898 .cmd = NL80211_CMD_REGISTER_FRAME,
12899 .doit = nl80211_register_mgmt,
026331c4 12900 .policy = nl80211_policy,
5617c6cd 12901 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12902 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 12903 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 12904 },
12905 {
2e161f78
JB		 12906 .cmd = NL80211_CMD_FRAME,
12907 .doit = nl80211_tx_mgmt,
026331c4 12908 .policy = nl80211_policy,
5617c6cd 12909 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12910 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 12911 NL80211_FLAG_NEED_RTNL,
12912 },
12913 {
12914 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
12915 .doit = nl80211_tx_mgmt_cancel_wait,
12916 .policy = nl80211_policy,
5617c6cd 12917 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12918 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12919 NL80211_FLAG_NEED_RTNL,
026331c4 12920 },
ffb9eb3d
KV		 12921 {
12922 .cmd = NL80211_CMD_SET_POWER_SAVE,
12923 .doit = nl80211_set_power_save,
12924 .policy = nl80211_policy,
5617c6cd 12925 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12926 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12927 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 12928 },
12929 {
12930 .cmd = NL80211_CMD_GET_POWER_SAVE,
12931 .doit = nl80211_get_power_save,
12932 .policy = nl80211_policy,
12933 /* can be retrieved by unprivileged users */
4c476991
JB		 12934 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12935 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 12936 },
d6dc1a38
JO		 12937 {
12938 .cmd = NL80211_CMD_SET_CQM,
12939 .doit = nl80211_set_cqm,
12940 .policy = nl80211_policy,
5617c6cd 12941 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12942 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12943 NL80211_FLAG_NEED_RTNL,
d6dc1a38 12944 },
f444de05
JB		 12945 {
12946 .cmd = NL80211_CMD_SET_CHANNEL,
12947 .doit = nl80211_set_channel,
12948 .policy = nl80211_policy,
5617c6cd 12949 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12950 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12951 NL80211_FLAG_NEED_RTNL,
f444de05 12952 },
e8347eba
BJ		 12953 {
12954 .cmd = NL80211_CMD_SET_WDS_PEER,
12955 .doit = nl80211_set_wds_peer,
12956 .policy = nl80211_policy,
5617c6cd 12957 .flags = GENL_UNS_ADMIN_PERM,
43b19952
JB		 12958 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12959 NL80211_FLAG_NEED_RTNL,
e8347eba 12960 },
29cbe68c
JB		 12961 {
12962 .cmd = NL80211_CMD_JOIN_MESH,
12963 .doit = nl80211_join_mesh,
12964 .policy = nl80211_policy,
5617c6cd 12965 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 12966 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12967 NL80211_FLAG_NEED_RTNL,
12968 },
12969 {
12970 .cmd = NL80211_CMD_LEAVE_MESH,
12971 .doit = nl80211_leave_mesh,
12972 .policy = nl80211_policy,
5617c6cd 12973 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 12974 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12975 NL80211_FLAG_NEED_RTNL,
12976 },
6e0bd6c3
RL		 12977 {
12978 .cmd = NL80211_CMD_JOIN_OCB,
12979 .doit = nl80211_join_ocb,
12980 .policy = nl80211_policy,
5617c6cd 12981 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 12982 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12983 NL80211_FLAG_NEED_RTNL,
12984 },
12985 {
12986 .cmd = NL80211_CMD_LEAVE_OCB,
12987 .doit = nl80211_leave_ocb,
12988 .policy = nl80211_policy,
5617c6cd 12989 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 12990 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12991 NL80211_FLAG_NEED_RTNL,
12992 },
dfb89c56 12993#ifdef CONFIG_PM
ff1b6e69
JB		 12994 {
12995 .cmd = NL80211_CMD_GET_WOWLAN,
12996 .doit = nl80211_get_wowlan,
12997 .policy = nl80211_policy,
12998 /* can be retrieved by unprivileged users */
12999 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13000 NL80211_FLAG_NEED_RTNL,
13001 },
13002 {
13003 .cmd = NL80211_CMD_SET_WOWLAN,
13004 .doit = nl80211_set_wowlan,
13005 .policy = nl80211_policy,
5617c6cd 13006 .flags = GENL_UNS_ADMIN_PERM,
ff1b6e69
JB		 13007 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13008 NL80211_FLAG_NEED_RTNL,
13009 },
dfb89c56 13010#endif
e5497d76
JB		 13011 {
13012 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
13013 .doit = nl80211_set_rekey_data,
13014 .policy = nl80211_policy,
5617c6cd 13015 .flags = GENL_UNS_ADMIN_PERM,
e5497d76 13016 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 13017 NL80211_FLAG_NEED_RTNL |
13018 NL80211_FLAG_CLEAR_SKB,
e5497d76 13019 },
109086ce
AN		 13020 {
13021 .cmd = NL80211_CMD_TDLS_MGMT,
13022 .doit = nl80211_tdls_mgmt,
13023 .policy = nl80211_policy,
5617c6cd 13024 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 13025 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13026 NL80211_FLAG_NEED_RTNL,
13027 },
13028 {
13029 .cmd = NL80211_CMD_TDLS_OPER,
13030 .doit = nl80211_tdls_oper,
13031 .policy = nl80211_policy,
5617c6cd 13032 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 13033 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13034 NL80211_FLAG_NEED_RTNL,
13035 },
28946da7
JB		 13036 {
13037 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
13038 .doit = nl80211_register_unexpected_frame,
13039 .policy = nl80211_policy,
5617c6cd 13040 .flags = GENL_UNS_ADMIN_PERM,
28946da7
JB		 13041 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13042 NL80211_FLAG_NEED_RTNL,
13043 },
7f6cf311
JB		 13044 {
13045 .cmd = NL80211_CMD_PROBE_CLIENT,
13046 .doit = nl80211_probe_client,
13047 .policy = nl80211_policy,
5617c6cd 13048 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 13049 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 13050 NL80211_FLAG_NEED_RTNL,
13051 },
5e760230
JB		 13052 {
13053 .cmd = NL80211_CMD_REGISTER_BEACONS,
13054 .doit = nl80211_register_beacons,
13055 .policy = nl80211_policy,
5617c6cd 13056 .flags = GENL_UNS_ADMIN_PERM,
5e760230
JB		 13057 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13058 NL80211_FLAG_NEED_RTNL,
13059 },
1d9d9213
SW		 13060 {
13061 .cmd = NL80211_CMD_SET_NOACK_MAP,
13062 .doit = nl80211_set_noack_map,
13063 .policy = nl80211_policy,
5617c6cd 13064 .flags = GENL_UNS_ADMIN_PERM,
1d9d9213
SW		 13065 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13066 NL80211_FLAG_NEED_RTNL,
13067 },
98104fde
JB		 13068 {
13069 .cmd = NL80211_CMD_START_P2P_DEVICE,
13070 .doit = nl80211_start_p2p_device,
13071 .policy = nl80211_policy,
5617c6cd 13072 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 13073 .internal_flags = NL80211_FLAG_NEED_WDEV |
13074 NL80211_FLAG_NEED_RTNL,
13075 },
13076 {
13077 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
13078 .doit = nl80211_stop_p2p_device,
13079 .policy = nl80211_policy,
5617c6cd 13080 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 13081 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13082 NL80211_FLAG_NEED_RTNL,
cb3b7d87
AB		 13083 },
13084 {
13085 .cmd = NL80211_CMD_START_NAN,
13086 .doit = nl80211_start_nan,
13087 .policy = nl80211_policy,
13088 .flags = GENL_ADMIN_PERM,
13089 .internal_flags = NL80211_FLAG_NEED_WDEV |
13090 NL80211_FLAG_NEED_RTNL,
13091 },
13092 {
13093 .cmd = NL80211_CMD_STOP_NAN,
13094 .doit = nl80211_stop_nan,
13095 .policy = nl80211_policy,
13096 .flags = GENL_ADMIN_PERM,
13097 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13098 NL80211_FLAG_NEED_RTNL,
a442b761
AB		 13099 },
13100 {
13101 .cmd = NL80211_CMD_ADD_NAN_FUNCTION,
13102 .doit = nl80211_nan_add_func,
13103 .policy = nl80211_policy,
13104 .flags = GENL_ADMIN_PERM,
13105 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13106 NL80211_FLAG_NEED_RTNL,
13107 },
13108 {
13109 .cmd = NL80211_CMD_DEL_NAN_FUNCTION,
13110 .doit = nl80211_nan_del_func,
13111 .policy = nl80211_policy,
13112 .flags = GENL_ADMIN_PERM,
13113 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13114 NL80211_FLAG_NEED_RTNL,
a5a9dcf2
AB		 13115 },
13116 {
13117 .cmd = NL80211_CMD_CHANGE_NAN_CONFIG,
13118 .doit = nl80211_nan_change_config,
13119 .policy = nl80211_policy,
13120 .flags = GENL_ADMIN_PERM,
13121 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13122 NL80211_FLAG_NEED_RTNL,
98104fde 13123 },
f4e583c8
AQ		 13124 {
13125 .cmd = NL80211_CMD_SET_MCAST_RATE,
13126 .doit = nl80211_set_mcast_rate,
77765eaf 13127 .policy = nl80211_policy,
5617c6cd 13128 .flags = GENL_UNS_ADMIN_PERM,
77765eaf
VT		 13129 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13130 NL80211_FLAG_NEED_RTNL,
13131 },
13132 {
13133 .cmd = NL80211_CMD_SET_MAC_ACL,
13134 .doit = nl80211_set_mac_acl,
f4e583c8 13135 .policy = nl80211_policy,
5617c6cd 13136 .flags = GENL_UNS_ADMIN_PERM,
f4e583c8
AQ		 13137 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13138 NL80211_FLAG_NEED_RTNL,
13139 },
04f39047
SW		 13140 {
13141 .cmd = NL80211_CMD_RADAR_DETECT,
13142 .doit = nl80211_start_radar_detection,
13143 .policy = nl80211_policy,
5617c6cd 13144 .flags = GENL_UNS_ADMIN_PERM,
04f39047
SW		 13145 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13146 NL80211_FLAG_NEED_RTNL,
13147 },
3713b4e3
JB		 13148 {
13149 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
13150 .doit = nl80211_get_protocol_features,
13151 .policy = nl80211_policy,
13152 },
355199e0
JM		 13153 {
13154 .cmd = NL80211_CMD_UPDATE_FT_IES,
13155 .doit = nl80211_update_ft_ies,
13156 .policy = nl80211_policy,
5617c6cd 13157 .flags = GENL_UNS_ADMIN_PERM,
355199e0
JM		 13158 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13159 NL80211_FLAG_NEED_RTNL,
13160 },
5de17984
AS		 13161 {
13162 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
13163 .doit = nl80211_crit_protocol_start,
13164 .policy = nl80211_policy,
5617c6cd 13165 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 13166 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13167 NL80211_FLAG_NEED_RTNL,
13168 },
13169 {
13170 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
13171 .doit = nl80211_crit_protocol_stop,
13172 .policy = nl80211_policy,
5617c6cd 13173 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 13174 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13175 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 13176 },
13177 {
13178 .cmd = NL80211_CMD_GET_COALESCE,
13179 .doit = nl80211_get_coalesce,
13180 .policy = nl80211_policy,
13181 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13182 NL80211_FLAG_NEED_RTNL,
13183 },
13184 {
13185 .cmd = NL80211_CMD_SET_COALESCE,
13186 .doit = nl80211_set_coalesce,
13187 .policy = nl80211_policy,
5617c6cd 13188 .flags = GENL_UNS_ADMIN_PERM,
be29b99a
AK		 13189 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13190 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 13191 },
13192 {
13193 .cmd = NL80211_CMD_CHANNEL_SWITCH,
13194 .doit = nl80211_channel_switch,
13195 .policy = nl80211_policy,
5617c6cd 13196 .flags = GENL_UNS_ADMIN_PERM,
16ef1fe2
SW		 13197 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13198 NL80211_FLAG_NEED_RTNL,
13199 },
ad7e718c
JB		 13200 {
13201 .cmd = NL80211_CMD_VENDOR,
13202 .doit = nl80211_vendor_cmd,
7bdbe400 13203 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c 13204 .policy = nl80211_policy,
5617c6cd 13205 .flags = GENL_UNS_ADMIN_PERM,
ad7e718c
JB		 13206 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13207 NL80211_FLAG_NEED_RTNL,
13208 },
fa9ffc74
KP		 13209 {
13210 .cmd = NL80211_CMD_SET_QOS_MAP,
13211 .doit = nl80211_set_qos_map,
13212 .policy = nl80211_policy,
5617c6cd 13213 .flags = GENL_UNS_ADMIN_PERM,
fa9ffc74
KP		 13214 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13215 NL80211_FLAG_NEED_RTNL,
13216 },
960d01ac
JB		 13217 {
13218 .cmd = NL80211_CMD_ADD_TX_TS,
13219 .doit = nl80211_add_tx_ts,
13220 .policy = nl80211_policy,
5617c6cd 13221 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 13222 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13223 NL80211_FLAG_NEED_RTNL,
13224 },
13225 {
13226 .cmd = NL80211_CMD_DEL_TX_TS,
13227 .doit = nl80211_del_tx_ts,
13228 .policy = nl80211_policy,
5617c6cd 13229 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 13230 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13231 NL80211_FLAG_NEED_RTNL,
13232 },
1057d35e
AN		 13233 {
13234 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
13235 .doit = nl80211_tdls_channel_switch,
13236 .policy = nl80211_policy,
5617c6cd 13237 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 13238 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13239 NL80211_FLAG_NEED_RTNL,
13240 },
13241 {
13242 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
13243 .doit = nl80211_tdls_cancel_channel_switch,
13244 .policy = nl80211_policy,
5617c6cd 13245 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 13246 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13247 NL80211_FLAG_NEED_RTNL,
13248 },
ce0ce13a
MB		 13249 {
13250 .cmd = NL80211_CMD_SET_MULTICAST_TO_UNICAST,
13251 .doit = nl80211_set_multicast_to_unicast,
13252 .policy = nl80211_policy,
13253 .flags = GENL_UNS_ADMIN_PERM,
13254 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13255 NL80211_FLAG_NEED_RTNL,
13256 },
3a00df57
AS		 13257 {
13258 .cmd = NL80211_CMD_SET_PMK,
13259 .doit = nl80211_set_pmk,
13260 .policy = nl80211_policy,
13261 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13262 NL80211_FLAG_NEED_RTNL,
13263 },
13264 {
13265 .cmd = NL80211_CMD_DEL_PMK,
13266 .doit = nl80211_del_pmk,
13267 .policy = nl80211_policy,
13268 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13269 NL80211_FLAG_NEED_RTNL,
13270 },
13271
55682965 13272};
9588bbd5 13273
56989f6d 13274static struct genl_family nl80211_fam __ro_after_init = {
489111e5
JB		 13275 .name = NL80211_GENL_NAME, /* have users key off the name instead */
13276 .hdrsize = 0, /* no private header */
13277 .version = 1, /* no particular meaning now */
13278 .maxattr = NL80211_ATTR_MAX,
13279 .netnsok = true,
13280 .pre_doit = nl80211_pre_doit,
13281 .post_doit = nl80211_post_doit,
13282 .module = THIS_MODULE,
13283 .ops = nl80211_ops,
13284 .n_ops = ARRAY_SIZE(nl80211_ops),
13285 .mcgrps = nl80211_mcgrps,
13286 .n_mcgrps = ARRAY_SIZE(nl80211_mcgrps),
13287};
13288
55682965
JB		 13289/* notification functions */
13290
3bb20556
JB		 13291void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
13292 enum nl80211_commands cmd)
55682965
JB		 13293{
13294 struct sk_buff *msg;
86e8cf98 13295 struct nl80211_dump_wiphy_state state = {};
55682965 13296
3bb20556
JB		 13297 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
13298 cmd != NL80211_CMD_DEL_WIPHY);
13299
fd2120ca 13300 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 13301 if (!msg)
13302 return;
13303
3bb20556 13304 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 13305 nlmsg_free(msg);
13306 return;
13307 }
13308
68eb5503 13309 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13310 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 13311}
13312
896ff063
DK		 13313void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
13314 struct wireless_dev *wdev,
13315 enum nl80211_commands cmd)
13316{
13317 struct sk_buff *msg;
13318
13319 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
13320 cmd != NL80211_CMD_DEL_INTERFACE);
13321
13322 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13323 if (!msg)
13324 return;
13325
13326 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
13327 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
13328 nlmsg_free(msg);
13329 return;
13330 }
13331
13332 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13333 NL80211_MCGRP_CONFIG, GFP_KERNEL);
13334}
13335
362a415d
JB		 13336static int nl80211_add_scan_req(struct sk_buff *msg,
13337 struct cfg80211_registered_device *rdev)
13338{
13339 struct cfg80211_scan_request *req = rdev->scan_req;
13340 struct nlattr *nest;
13341 int i;
13342
13343 if (WARN_ON(!req))
13344 return 0;
13345
13346 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
13347 if (!nest)
13348 goto nla_put_failure;
9360ffd1
DM		 13349 for (i = 0; i < req->n_ssids; i++) {
13350 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
13351 goto nla_put_failure;
13352 }
362a415d
JB		 13353 nla_nest_end(msg, nest);
13354
13355 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
13356 if (!nest)
13357 goto nla_put_failure;
9360ffd1
DM		 13358 for (i = 0; i < req->n_channels; i++) {
13359 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
13360 goto nla_put_failure;
13361 }
362a415d
JB		 13362 nla_nest_end(msg, nest);
13363
9360ffd1
DM		 13364 if (req->ie &&
13365 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
13366 goto nla_put_failure;
362a415d 13367
ae917c9f
JB		 13368 if (req->flags &&
13369 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
13370 goto nla_put_failure;
ed473771 13371
1d76250b
AS		 13372 if (req->info.scan_start_tsf &&
13373 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
13374 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
13375 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
13376 req->info.tsf_bssid)))
13377 goto nla_put_failure;
13378
362a415d
JB		 13379 return 0;
13380 nla_put_failure:
13381 return -ENOBUFS;
13382}
13383
505a2e88 13384static int nl80211_prep_scan_msg(struct sk_buff *msg,
a538e2d5 13385 struct cfg80211_registered_device *rdev,
fd014284 13386 struct wireless_dev *wdev,
15e47304 13387 u32 portid, u32 seq, int flags,
a538e2d5 13388 u32 cmd)
2a519311
JB		 13389{
13390 void *hdr;
13391
15e47304 13392 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 13393 if (!hdr)
13394 return -1;
13395
9360ffd1 13396 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 13397 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13398 wdev->netdev->ifindex)) ||
2dad624e
ND		 13399 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13400 NL80211_ATTR_PAD))
9360ffd1 13401 goto nla_put_failure;
2a519311 13402
362a415d
JB		 13403 /* ignore errors and send incomplete event anyway */
13404 nl80211_add_scan_req(msg, rdev);
2a519311 13405
053c095a
JB		 13406 genlmsg_end(msg, hdr);
13407 return 0;
2a519311
JB		 13408
13409 nla_put_failure:
13410 genlmsg_cancel(msg, hdr);
13411 return -EMSGSIZE;
13412}
13413
807f8a8c 13414static int
505a2e88 13415nl80211_prep_sched_scan_msg(struct sk_buff *msg,
96b08fd6 13416 struct cfg80211_sched_scan_request *req, u32 cmd)
807f8a8c
LC		 13417{
13418 void *hdr;
13419
96b08fd6 13420 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
807f8a8c
LC		 13421 if (!hdr)
13422 return -1;
13423
96b08fd6
AVS		 13424 if (nla_put_u32(msg, NL80211_ATTR_WIPHY,
13425 wiphy_to_rdev(req->wiphy)->wiphy_idx) ||
13426 nla_put_u32(msg, NL80211_ATTR_IFINDEX, req->dev->ifindex) ||
13427 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, req->reqid,
13428 NL80211_ATTR_PAD))
9360ffd1 13429 goto nla_put_failure;
807f8a8c 13430
053c095a
JB		 13431 genlmsg_end(msg, hdr);
13432 return 0;
807f8a8c
LC		 13433
13434 nla_put_failure:
13435 genlmsg_cancel(msg, hdr);
13436 return -EMSGSIZE;
13437}
13438
a538e2d5 13439void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 13440 struct wireless_dev *wdev)
a538e2d5
JB		 13441{
13442 struct sk_buff *msg;
13443
58050fce 13444 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 13445 if (!msg)
13446 return;
13447
505a2e88 13448 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 13449 NL80211_CMD_TRIGGER_SCAN) < 0) {
13450 nlmsg_free(msg);
13451 return;
13452 }
13453
68eb5503 13454 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13455 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 13456}
13457
f9d15d16
JB		 13458struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
13459 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 13460{
13461 struct sk_buff *msg;
13462
fd2120ca 13463 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 13464 if (!msg)
f9d15d16 13465 return NULL;
2a519311 13466
505a2e88 13467 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 13468 aborted ? NL80211_CMD_SCAN_ABORTED :
13469 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 13470 nlmsg_free(msg);
f9d15d16 13471 return NULL;
2a519311
JB		 13472 }
13473
f9d15d16 13474 return msg;
2a519311
JB		 13475}
13476
505a2e88
AVS		 13477/* send message created by nl80211_build_scan_msg() */
13478void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev,
13479 struct sk_buff *msg)
807f8a8c 13480{
807f8a8c
LC		 13481 if (!msg)
13482 return;
13483
68eb5503 13484 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13485 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 13486}
13487
96b08fd6 13488void nl80211_send_sched_scan(struct cfg80211_sched_scan_request *req, u32 cmd)
807f8a8c
LC		 13489{
13490 struct sk_buff *msg;
13491
58050fce 13492 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 13493 if (!msg)
13494 return;
13495
96b08fd6 13496 if (nl80211_prep_sched_scan_msg(msg, req, cmd) < 0) {
807f8a8c
LC		 13497 nlmsg_free(msg);
13498 return;
13499 }
13500
96b08fd6 13501 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(req->wiphy), msg, 0,
2a94fe48 13502 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 13503}
13504
b0d7aa59
JD		 13505static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
13506 struct regulatory_request *request)
73d54c9e 13507{
73d54c9e 13508 /* Userspace can always count this one always being set */
9360ffd1
DM		 13509 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
13510 goto nla_put_failure;
13511
13512 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
13513 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13514 NL80211_REGDOM_TYPE_WORLD))
13515 goto nla_put_failure;
13516 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
13517 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13518 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
13519 goto nla_put_failure;
13520 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
13521 request->intersect) {
13522 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13523 NL80211_REGDOM_TYPE_INTERSECTION))
13524 goto nla_put_failure;
13525 } else {
13526 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13527 NL80211_REGDOM_TYPE_COUNTRY) ||
13528 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
13529 request->alpha2))
13530 goto nla_put_failure;
13531 }
13532
ad30ca2c
AN		 13533 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
13534 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
13535
13536 if (wiphy &&
13537 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
13538 goto nla_put_failure;
1bdd716c
AN		 13539
13540 if (wiphy &&
13541 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
13542 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
13543 goto nla_put_failure;
ad30ca2c 13544 }
73d54c9e 13545
b0d7aa59
JD		 13546 return true;
13547
13548nla_put_failure:
13549 return false;
13550}
13551
13552/*
13553 * This can happen on global regulatory changes or device specific settings
13554 * based on custom regulatory domains.
13555 */
13556void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
13557 struct regulatory_request *request)
13558{
13559 struct sk_buff *msg;
13560 void *hdr;
13561
13562 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13563 if (!msg)
13564 return;
13565
13566 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
13567 if (!hdr) {
13568 nlmsg_free(msg);
13569 return;
13570 }
13571
13572 if (nl80211_reg_change_event_fill(msg, request) == false)
13573 goto nla_put_failure;
13574
3b7b72ee 13575 genlmsg_end(msg, hdr);
73d54c9e 13576
bc43b28c 13577 rcu_read_lock();
68eb5503 13578 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 13579 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 13580 rcu_read_unlock();
73d54c9e
LR		 13581
13582 return;
13583
13584nla_put_failure:
13585 genlmsg_cancel(msg, hdr);
13586 nlmsg_free(msg);
13587}
13588
6039f6d2
JM		 13589static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
13590 struct net_device *netdev,
13591 const u8 *buf, size_t len,
b0b6aa2c
EP		 13592 enum nl80211_commands cmd, gfp_t gfp,
13593 int uapsd_queues)
6039f6d2
JM		 13594{
13595 struct sk_buff *msg;
13596 void *hdr;
13597
4ef8c1c9 13598 msg = nlmsg_new(100 + len, gfp);
6039f6d2
JM		 13599 if (!msg)
13600 return;
13601
13602 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13603 if (!hdr) {
13604 nlmsg_free(msg);
13605 return;
13606 }
13607
9360ffd1
DM		 13608 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13609 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13610 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
13611 goto nla_put_failure;
6039f6d2 13612
b0b6aa2c
EP		 13613 if (uapsd_queues >= 0) {
13614 struct nlattr *nla_wmm =
13615 nla_nest_start(msg, NL80211_ATTR_STA_WME);
13616 if (!nla_wmm)
13617 goto nla_put_failure;
13618
13619 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
13620 uapsd_queues))
13621 goto nla_put_failure;
13622
13623 nla_nest_end(msg, nla_wmm);
13624 }
13625
3b7b72ee 13626 genlmsg_end(msg, hdr);
6039f6d2 13627
68eb5503 13628 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13629 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 13630 return;
13631
13632 nla_put_failure:
13633 genlmsg_cancel(msg, hdr);
13634 nlmsg_free(msg);
13635}
13636
13637void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13638 struct net_device *netdev, const u8 *buf,
13639 size_t len, gfp_t gfp)
6039f6d2
JM		 13640{
13641 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13642 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 13643}
13644
13645void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
13646 struct net_device *netdev, const u8 *buf,
b0b6aa2c 13647 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 13648{
e6d6e342 13649 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13650 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 13651}
13652
53b46b84 13653void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13654 struct net_device *netdev, const u8 *buf,
13655 size_t len, gfp_t gfp)
6039f6d2
JM		 13656{
13657 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13658 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 13659}
13660
53b46b84
JM		 13661void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
13662 struct net_device *netdev, const u8 *buf,
e6d6e342 13663 size_t len, gfp_t gfp)
6039f6d2
JM		 13664{
13665 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13666 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 13667}
13668
6ff57cf8
JB		 13669void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
13670 size_t len)
cf4e594e 13671{
947add36
JB		 13672 struct wireless_dev *wdev = dev->ieee80211_ptr;
13673 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13674 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 13675 const struct ieee80211_mgmt *mgmt = (void *)buf;
13676 u32 cmd;
947add36 13677
6ff57cf8
JB		 13678 if (WARN_ON(len < 2))
13679 return;
cf4e594e 13680
6ff57cf8
JB		 13681 if (ieee80211_is_deauth(mgmt->frame_control))
13682 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
13683 else
13684 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 13685
6ff57cf8 13686 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 13687 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 13688}
6ff57cf8 13689EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 13690
1b06bb40
LR		 13691static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
13692 struct net_device *netdev, int cmd,
e6d6e342 13693 const u8 *addr, gfp_t gfp)
1965c853
JM		 13694{
13695 struct sk_buff *msg;
13696 void *hdr;
13697
e6d6e342 13698 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 13699 if (!msg)
13700 return;
13701
13702 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13703 if (!hdr) {
13704 nlmsg_free(msg);
13705 return;
13706 }
13707
9360ffd1
DM		 13708 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13709 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13710 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13711 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13712 goto nla_put_failure;
1965c853 13713
3b7b72ee 13714 genlmsg_end(msg, hdr);
1965c853 13715
68eb5503 13716 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13717 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 13718 return;
13719
13720 nla_put_failure:
13721 genlmsg_cancel(msg, hdr);
13722 nlmsg_free(msg);
13723}
13724
13725void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13726 struct net_device *netdev, const u8 *addr,
13727 gfp_t gfp)
1965c853
JM		 13728{
13729 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 13730 addr, gfp);
1965c853
JM		 13731}
13732
13733void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13734 struct net_device *netdev, const u8 *addr,
13735 gfp_t gfp)
1965c853 13736{
e6d6e342
JB		 13737 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
13738 addr, gfp);
1965c853
JM		 13739}
13740
b23aa676 13741void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5349a0f7
VK		 13742 struct net_device *netdev,
13743 struct cfg80211_connect_resp_params *cr,
3093ebbe 13744 gfp_t gfp)
b23aa676
SO		 13745{
13746 struct sk_buff *msg;
13747 void *hdr;
13748
a3caf744
VK		 13749 msg = nlmsg_new(100 + cr->req_ie_len + cr->resp_ie_len +
13750 cr->fils_kek_len + cr->pmk_len +
13751 (cr->pmkid ? WLAN_PMKID_LEN : 0), gfp);
b23aa676
SO		 13752 if (!msg)
13753 return;
13754
13755 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
13756 if (!hdr) {
13757 nlmsg_free(msg);
13758 return;
13759 }
13760
9360ffd1
DM		 13761 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13762 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
5349a0f7
VK		 13763 (cr->bssid &&
13764 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, cr->bssid)) ||
bf1ecd21 13765 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
5349a0f7
VK		 13766 cr->status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
13767 cr->status) ||
13768 (cr->status < 0 &&
3093ebbe 13769 (nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
5349a0f7
VK		 13770 nla_put_u32(msg, NL80211_ATTR_TIMEOUT_REASON,
13771 cr->timeout_reason))) ||
13772 (cr->req_ie &&
13773 nla_put(msg, NL80211_ATTR_REQ_IE, cr->req_ie_len, cr->req_ie)) ||
13774 (cr->resp_ie &&
13775 nla_put(msg, NL80211_ATTR_RESP_IE, cr->resp_ie_len,
a3caf744
VK		 13776 cr->resp_ie)) ||
13777 (cr->update_erp_next_seq_num &&
13778 nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM,
13779 cr->fils_erp_next_seq_num)) ||
13780 (cr->status == WLAN_STATUS_SUCCESS &&
13781 ((cr->fils_kek &&
13782 nla_put(msg, NL80211_ATTR_FILS_KEK, cr->fils_kek_len,
13783 cr->fils_kek)) ||
13784 (cr->pmk &&
13785 nla_put(msg, NL80211_ATTR_PMK, cr->pmk_len, cr->pmk)) ||
13786 (cr->pmkid &&
13787 nla_put(msg, NL80211_ATTR_PMKID, WLAN_PMKID_LEN, cr->pmkid)))))
9360ffd1 13788 goto nla_put_failure;
b23aa676 13789
3b7b72ee 13790 genlmsg_end(msg, hdr);
b23aa676 13791
68eb5503 13792 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13793 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 13794 return;
13795
13796 nla_put_failure:
13797 genlmsg_cancel(msg, hdr);
13798 nlmsg_free(msg);
b23aa676
SO		 13799}
13800
13801void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
29ce6ecb
AS		 13802 struct net_device *netdev,
13803 struct cfg80211_roam_info *info, gfp_t gfp)
b23aa676
SO		 13804{
13805 struct sk_buff *msg;
13806 void *hdr;
29ce6ecb 13807 const u8 *bssid = info->bss ? info->bss->bssid : info->bssid;
b23aa676 13808
29ce6ecb 13809 msg = nlmsg_new(100 + info->req_ie_len + info->resp_ie_len, gfp);
b23aa676
SO		 13810 if (!msg)
13811 return;
13812
13813 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
13814 if (!hdr) {
13815 nlmsg_free(msg);
13816 return;
13817 }
13818
9360ffd1
DM		 13819 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13820 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13821 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
29ce6ecb
AS		 13822 (info->req_ie &&
13823 nla_put(msg, NL80211_ATTR_REQ_IE, info->req_ie_len,
13824 info->req_ie)) ||
13825 (info->resp_ie &&
13826 nla_put(msg, NL80211_ATTR_RESP_IE, info->resp_ie_len,
f45cbe6e
AS		 13827 info->resp_ie)) ||
13828 (info->authorized &&
13829 nla_put_flag(msg, NL80211_ATTR_PORT_AUTHORIZED)))
9360ffd1 13830 goto nla_put_failure;
b23aa676 13831
3b7b72ee 13832 genlmsg_end(msg, hdr);
b23aa676 13833
68eb5503 13834 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13835 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 13836 return;
13837
13838 nla_put_failure:
13839 genlmsg_cancel(msg, hdr);
13840 nlmsg_free(msg);
b23aa676
SO		 13841}
13842
13843void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
13844 struct net_device *netdev, u16 reason,
667503dd 13845 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 13846{
13847 struct sk_buff *msg;
13848 void *hdr;
13849
4ef8c1c9 13850 msg = nlmsg_new(100 + ie_len, GFP_KERNEL);
b23aa676
SO		 13851 if (!msg)
13852 return;
13853
13854 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
13855 if (!hdr) {
13856 nlmsg_free(msg);
13857 return;
13858 }
13859
9360ffd1
DM		 13860 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13861 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13862 (from_ap && reason &&
13863 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
13864 (from_ap &&
13865 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
13866 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
13867 goto nla_put_failure;
b23aa676 13868
3b7b72ee 13869 genlmsg_end(msg, hdr);
b23aa676 13870
68eb5503 13871 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13872 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 13873 return;
13874
13875 nla_put_failure:
13876 genlmsg_cancel(msg, hdr);
13877 nlmsg_free(msg);
b23aa676
SO		 13878}
13879
04a773ad
JB		 13880void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
13881 struct net_device *netdev, const u8 *bssid,
13882 gfp_t gfp)
13883{
13884 struct sk_buff *msg;
13885 void *hdr;
13886
fd2120ca 13887 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 13888 if (!msg)
13889 return;
13890
13891 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
13892 if (!hdr) {
13893 nlmsg_free(msg);
13894 return;
13895 }
13896
9360ffd1
DM		 13897 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13898 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13899 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13900 goto nla_put_failure;
04a773ad 13901
3b7b72ee 13902 genlmsg_end(msg, hdr);
04a773ad 13903
68eb5503 13904 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13905 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 13906 return;
13907
13908 nla_put_failure:
13909 genlmsg_cancel(msg, hdr);
13910 nlmsg_free(msg);
13911}
13912
947add36
JB		 13913void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
13914 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 13915{
947add36 13916 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13917 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 13918 struct sk_buff *msg;
13919 void *hdr;
13920
947add36
JB		 13921 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
13922 return;
13923
13924 trace_cfg80211_notify_new_peer_candidate(dev, addr);
13925
4ef8c1c9 13926 msg = nlmsg_new(100 + ie_len, gfp);
c93b5e71
JC		 13927 if (!msg)
13928 return;
13929
13930 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
13931 if (!hdr) {
13932 nlmsg_free(msg);
13933 return;
13934 }
13935
9360ffd1 13936 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 13937 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13938 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 13939 (ie_len && ie &&
13940 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
13941 goto nla_put_failure;
c93b5e71 13942
3b7b72ee 13943 genlmsg_end(msg, hdr);
c93b5e71 13944
68eb5503 13945 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13946 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 13947 return;
13948
13949 nla_put_failure:
13950 genlmsg_cancel(msg, hdr);
13951 nlmsg_free(msg);
13952}
947add36 13953EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 13954
a3b8b056
JM		 13955void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
13956 struct net_device *netdev, const u8 *addr,
13957 enum nl80211_key_type key_type, int key_id,
e6d6e342 13958 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 13959{
13960 struct sk_buff *msg;
13961 void *hdr;
13962
e6d6e342 13963 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 13964 if (!msg)
13965 return;
13966
13967 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
13968 if (!hdr) {
13969 nlmsg_free(msg);
13970 return;
13971 }
13972
9360ffd1
DM		 13973 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13974 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13975 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
13976 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
13977 (key_id != -1 &&
13978 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
13979 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
13980 goto nla_put_failure;
a3b8b056 13981
3b7b72ee 13982 genlmsg_end(msg, hdr);
a3b8b056 13983
68eb5503 13984 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13985 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 13986 return;
13987
13988 nla_put_failure:
13989 genlmsg_cancel(msg, hdr);
13990 nlmsg_free(msg);
13991}
13992
6bad8766
LR		 13993void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
13994 struct ieee80211_channel *channel_before,
13995 struct ieee80211_channel *channel_after)
13996{
13997 struct sk_buff *msg;
13998 void *hdr;
13999 struct nlattr *nl_freq;
14000
fd2120ca 14001 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 14002 if (!msg)
14003 return;
14004
14005 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
14006 if (!hdr) {
14007 nlmsg_free(msg);
14008 return;
14009 }
14010
14011 /*
14012 * Since we are applying the beacon hint to a wiphy we know its
14013 * wiphy_idx is valid
14014 */
9360ffd1
DM		 14015 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
14016 goto nla_put_failure;
6bad8766
LR		 14017
14018 /* Before */
14019 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
14020 if (!nl_freq)
14021 goto nla_put_failure;
cdc89b97 14022 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 14023 goto nla_put_failure;
14024 nla_nest_end(msg, nl_freq);
14025
14026 /* After */
14027 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
14028 if (!nl_freq)
14029 goto nla_put_failure;
cdc89b97 14030 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 14031 goto nla_put_failure;
14032 nla_nest_end(msg, nl_freq);
14033
3b7b72ee 14034 genlmsg_end(msg, hdr);
6bad8766 14035
463d0183 14036 rcu_read_lock();
68eb5503 14037 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 14038 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 14039 rcu_read_unlock();
6bad8766
LR		 14040
14041 return;
14042
14043nla_put_failure:
14044 genlmsg_cancel(msg, hdr);
14045 nlmsg_free(msg);
14046}
14047
9588bbd5
JM		 14048static void nl80211_send_remain_on_chan_event(
14049 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 14050 struct wireless_dev *wdev, u64 cookie,
9588bbd5 14051 struct ieee80211_channel *chan,
9588bbd5
JM		 14052 unsigned int duration, gfp_t gfp)
14053{
14054 struct sk_buff *msg;
14055 void *hdr;
14056
14057 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14058 if (!msg)
14059 return;
14060
14061 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14062 if (!hdr) {
14063 nlmsg_free(msg);
14064 return;
14065 }
14066
9360ffd1 14067 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 14068 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14069 wdev->netdev->ifindex)) ||
2dad624e
ND		 14070 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14071 NL80211_ATTR_PAD) ||
9360ffd1 14072 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 14073 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
14074 NL80211_CHAN_NO_HT) ||
2dad624e
ND		 14075 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14076 NL80211_ATTR_PAD))
9360ffd1 14077 goto nla_put_failure;
9588bbd5 14078
9360ffd1
DM		 14079 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
14080 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
14081 goto nla_put_failure;
9588bbd5 14082
3b7b72ee 14083 genlmsg_end(msg, hdr);
9588bbd5 14084
68eb5503 14085 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14086 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 14087 return;
14088
14089 nla_put_failure:
14090 genlmsg_cancel(msg, hdr);
14091 nlmsg_free(msg);
14092}
14093
947add36
JB		 14094void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
14095 struct ieee80211_channel *chan,
14096 unsigned int duration, gfp_t gfp)
9588bbd5 14097{
947add36 14098 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14099 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14100
14101 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 14102 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 14103 rdev, wdev, cookie, chan,
42d97a59 14104 duration, gfp);
9588bbd5 14105}
947add36 14106EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 14107
947add36
JB		 14108void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
14109 struct ieee80211_channel *chan,
14110 gfp_t gfp)
9588bbd5 14111{
947add36 14112 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14113 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14114
14115 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 14116 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 14117 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 14118}
947add36 14119EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 14120
947add36
JB		 14121void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
14122 struct station_info *sinfo, gfp_t gfp)
98b62183 14123{
947add36 14124 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 14125 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 14126 struct sk_buff *msg;
14127
947add36
JB		 14128 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
14129
58050fce 14130 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 14131 if (!msg)
14132 return;
14133
cf5ead82 14134 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 14135 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 14136 nlmsg_free(msg);
14137 return;
14138 }
14139
68eb5503 14140 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14141 NL80211_MCGRP_MLME, gfp);
98b62183 14142}
947add36 14143EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 14144
cf5ead82
JB		 14145void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
14146 struct station_info *sinfo, gfp_t gfp)
ec15e68b 14147{
947add36 14148 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 14149 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 14150 struct sk_buff *msg;
cf5ead82
JB		 14151 struct station_info empty_sinfo = {};
14152
14153 if (!sinfo)
14154 sinfo = &empty_sinfo;
ec15e68b 14155
947add36
JB		 14156 trace_cfg80211_del_sta(dev, mac_addr);
14157
58050fce 14158 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 14159 if (!msg)
14160 return;
14161
cf5ead82 14162 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 14163 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 14164 nlmsg_free(msg);
14165 return;
14166 }
14167
68eb5503 14168 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14169 NL80211_MCGRP_MLME, gfp);
ec15e68b 14170}
cf5ead82 14171EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 14172
947add36
JB		 14173void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
14174 enum nl80211_connect_failed_reason reason,
14175 gfp_t gfp)
ed44a951 14176{
947add36 14177 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 14178 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 14179 struct sk_buff *msg;
14180 void *hdr;
14181
14182 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
14183 if (!msg)
14184 return;
14185
14186 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
14187 if (!hdr) {
14188 nlmsg_free(msg);
14189 return;
14190 }
14191
14192 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14193 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
14194 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
14195 goto nla_put_failure;
14196
14197 genlmsg_end(msg, hdr);
14198
68eb5503 14199 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14200 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 14201 return;
14202
14203 nla_put_failure:
14204 genlmsg_cancel(msg, hdr);
14205 nlmsg_free(msg);
14206}
947add36 14207EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 14208
b92ab5d8
JB		 14209static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
14210 const u8 *addr, gfp_t gfp)
28946da7
JB		 14211{
14212 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14213 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 14214 struct sk_buff *msg;
14215 void *hdr;
15e47304 14216 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 14217
15e47304 14218 if (!nlportid)
28946da7
JB		 14219 return false;
14220
14221 msg = nlmsg_new(100, gfp);
14222 if (!msg)
14223 return true;
14224
b92ab5d8 14225 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 14226 if (!hdr) {
14227 nlmsg_free(msg);
14228 return true;
14229 }
14230
9360ffd1
DM		 14231 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14232 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14233 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
14234 goto nla_put_failure;
28946da7 14235
9c90a9f6 14236 genlmsg_end(msg, hdr);
15e47304 14237 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 14238 return true;
14239
14240 nla_put_failure:
14241 genlmsg_cancel(msg, hdr);
14242 nlmsg_free(msg);
14243 return true;
14244}
14245
947add36
JB		 14246bool cfg80211_rx_spurious_frame(struct net_device *dev,
14247 const u8 *addr, gfp_t gfp)
b92ab5d8 14248{
947add36
JB		 14249 struct wireless_dev *wdev = dev->ieee80211_ptr;
14250 bool ret;
14251
14252 trace_cfg80211_rx_spurious_frame(dev, addr);
14253
14254 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
14255 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
14256 trace_cfg80211_return_bool(false);
14257 return false;
14258 }
14259 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
14260 addr, gfp);
14261 trace_cfg80211_return_bool(ret);
14262 return ret;
b92ab5d8 14263}
947add36 14264EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 14265
947add36
JB		 14266bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
14267 const u8 *addr, gfp_t gfp)
b92ab5d8 14268{
947add36
JB		 14269 struct wireless_dev *wdev = dev->ieee80211_ptr;
14270 bool ret;
14271
14272 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
14273
14274 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
14275 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
14276 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
14277 trace_cfg80211_return_bool(false);
14278 return false;
14279 }
14280 ret = __nl80211_unexpected_frame(dev,
14281 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
14282 addr, gfp);
14283 trace_cfg80211_return_bool(ret);
14284 return ret;
b92ab5d8 14285}
947add36 14286EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 14287
2e161f78 14288int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 14289 struct wireless_dev *wdev, u32 nlportid,
804483e9 14290 int freq, int sig_dbm,
19504cf5 14291 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 14292{
71bbc994 14293 struct net_device *netdev = wdev->netdev;
026331c4
JM		 14294 struct sk_buff *msg;
14295 void *hdr;
026331c4 14296
4ef8c1c9 14297 msg = nlmsg_new(100 + len, gfp);
026331c4
JM		 14298 if (!msg)
14299 return -ENOMEM;
14300
2e161f78 14301 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 14302 if (!hdr) {
14303 nlmsg_free(msg);
14304 return -ENOMEM;
14305 }
14306
9360ffd1 14307 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 14308 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14309 netdev->ifindex)) ||
2dad624e
ND		 14310 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14311 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14312 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
14313 (sig_dbm &&
14314 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 14315 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
14316 (flags &&
14317 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 14318 goto nla_put_failure;
026331c4 14319
3b7b72ee 14320 genlmsg_end(msg, hdr);
026331c4 14321
15e47304 14322 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 14323
14324 nla_put_failure:
14325 genlmsg_cancel(msg, hdr);
14326 nlmsg_free(msg);
14327 return -ENOBUFS;
14328}
14329
947add36
JB		 14330void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
14331 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 14332{
947add36 14333 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14334 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 14335 struct net_device *netdev = wdev->netdev;
026331c4
JM		 14336 struct sk_buff *msg;
14337 void *hdr;
14338
947add36
JB		 14339 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
14340
4ef8c1c9 14341 msg = nlmsg_new(100 + len, gfp);
026331c4
JM		 14342 if (!msg)
14343 return;
14344
2e161f78 14345 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 14346 if (!hdr) {
14347 nlmsg_free(msg);
14348 return;
14349 }
14350
9360ffd1 14351 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 14352 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14353 netdev->ifindex)) ||
2dad624e
ND		 14354 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14355 NL80211_ATTR_PAD) ||
9360ffd1 14356 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
2dad624e
ND		 14357 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14358 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14359 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
14360 goto nla_put_failure;
026331c4 14361
3b7b72ee 14362 genlmsg_end(msg, hdr);
026331c4 14363
68eb5503 14364 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14365 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 14366 return;
14367
14368 nla_put_failure:
14369 genlmsg_cancel(msg, hdr);
14370 nlmsg_free(msg);
14371}
947add36 14372EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 14373
5b97f49d
JB		 14374static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
14375 const char *mac, gfp_t gfp)
d6dc1a38 14376{
947add36 14377 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 14378 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14379 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14380 void **cb;
947add36 14381
d6dc1a38 14382 if (!msg)
5b97f49d 14383 return NULL;
d6dc1a38 14384
5b97f49d
JB		 14385 cb = (void **)msg->cb;
14386
14387 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
14388 if (!cb[0]) {
d6dc1a38 14389 nlmsg_free(msg);
5b97f49d 14390 return NULL;
d6dc1a38
JO		 14391 }
14392
9360ffd1 14393 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 14394 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 14395 goto nla_put_failure;
d6dc1a38 14396
5b97f49d 14397 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 14398 goto nla_put_failure;
14399
5b97f49d
JB		 14400 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
14401 if (!cb[1])
9360ffd1 14402 goto nla_put_failure;
d6dc1a38 14403
5b97f49d 14404 cb[2] = rdev;
d6dc1a38 14405
5b97f49d
JB		 14406 return msg;
14407 nla_put_failure:
14408 nlmsg_free(msg);
14409 return NULL;
14410}
14411
14412static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
14413{
14414 void **cb = (void **)msg->cb;
14415 struct cfg80211_registered_device *rdev = cb[2];
14416
14417 nla_nest_end(msg, cb[1]);
14418 genlmsg_end(msg, cb[0]);
14419
14420 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 14421
68eb5503 14422 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14423 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 14424}
14425
14426void cfg80211_cqm_rssi_notify(struct net_device *dev,
14427 enum nl80211_cqm_rssi_threshold_event rssi_event,
bee427b8 14428 s32 rssi_level, gfp_t gfp)
5b97f49d
JB		 14429{
14430 struct sk_buff *msg;
4a4b8169
AZ		 14431 struct wireless_dev *wdev = dev->ieee80211_ptr;
14432 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
5b97f49d 14433
bee427b8 14434 trace_cfg80211_cqm_rssi_notify(dev, rssi_event, rssi_level);
5b97f49d 14435
98f03342
JB		 14436 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
14437 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
14438 return;
14439
4a4b8169
AZ		 14440 if (wdev->cqm_config) {
14441 wdev->cqm_config->last_rssi_event_value = rssi_level;
14442
14443 cfg80211_cqm_rssi_update(rdev, dev);
14444
14445 if (rssi_level == 0)
14446 rssi_level = wdev->cqm_config->last_rssi_event_value;
14447 }
14448
5b97f49d
JB		 14449 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14450 if (!msg)
14451 return;
14452
14453 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
14454 rssi_event))
14455 goto nla_put_failure;
14456
bee427b8
AZ		 14457 if (rssi_level && nla_put_s32(msg, NL80211_ATTR_CQM_RSSI_LEVEL,
14458 rssi_level))
14459 goto nla_put_failure;
14460
5b97f49d
JB		 14461 cfg80211_send_cqm(msg, gfp);
14462
d6dc1a38
JO		 14463 return;
14464
14465 nla_put_failure:
d6dc1a38
JO		 14466 nlmsg_free(msg);
14467}
947add36 14468EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 14469
5b97f49d
JB		 14470void cfg80211_cqm_txe_notify(struct net_device *dev,
14471 const u8 *peer, u32 num_packets,
14472 u32 rate, u32 intvl, gfp_t gfp)
14473{
14474 struct sk_buff *msg;
14475
14476 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14477 if (!msg)
14478 return;
14479
14480 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
14481 goto nla_put_failure;
14482
14483 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
14484 goto nla_put_failure;
14485
14486 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
14487 goto nla_put_failure;
14488
14489 cfg80211_send_cqm(msg, gfp);
14490 return;
14491
14492 nla_put_failure:
14493 nlmsg_free(msg);
14494}
14495EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
14496
14497void cfg80211_cqm_pktloss_notify(struct net_device *dev,
14498 const u8 *peer, u32 num_packets, gfp_t gfp)
14499{
14500 struct sk_buff *msg;
14501
14502 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
14503
14504 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14505 if (!msg)
14506 return;
14507
14508 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
14509 goto nla_put_failure;
14510
14511 cfg80211_send_cqm(msg, gfp);
14512 return;
14513
14514 nla_put_failure:
14515 nlmsg_free(msg);
14516}
14517EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
14518
98f03342
JB		 14519void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
14520{
14521 struct sk_buff *msg;
14522
14523 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14524 if (!msg)
14525 return;
14526
14527 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
14528 goto nla_put_failure;
14529
14530 cfg80211_send_cqm(msg, gfp);
14531 return;
14532
14533 nla_put_failure:
14534 nlmsg_free(msg);
14535}
14536EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
14537
947add36
JB		 14538static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
14539 struct net_device *netdev, const u8 *bssid,
14540 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 14541{
14542 struct sk_buff *msg;
14543 struct nlattr *rekey_attr;
14544 void *hdr;
14545
58050fce 14546 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 14547 if (!msg)
14548 return;
14549
14550 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
14551 if (!hdr) {
14552 nlmsg_free(msg);
14553 return;
14554 }
14555
9360ffd1
DM		 14556 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14557 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14558 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14559 goto nla_put_failure;
e5497d76
JB		 14560
14561 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
14562 if (!rekey_attr)
14563 goto nla_put_failure;
14564
9360ffd1
DM		 14565 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
14566 NL80211_REPLAY_CTR_LEN, replay_ctr))
14567 goto nla_put_failure;
e5497d76
JB		 14568
14569 nla_nest_end(msg, rekey_attr);
14570
3b7b72ee 14571 genlmsg_end(msg, hdr);
e5497d76 14572
68eb5503 14573 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14574 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 14575 return;
14576
14577 nla_put_failure:
14578 genlmsg_cancel(msg, hdr);
14579 nlmsg_free(msg);
14580}
14581
947add36
JB		 14582void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
14583 const u8 *replay_ctr, gfp_t gfp)
14584{
14585 struct wireless_dev *wdev = dev->ieee80211_ptr;
14586 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14587 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14588
14589 trace_cfg80211_gtk_rekey_notify(dev, bssid);
14590 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
14591}
14592EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
14593
14594static void
14595nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
14596 struct net_device *netdev, int index,
14597 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 14598{
14599 struct sk_buff *msg;
14600 struct nlattr *attr;
14601 void *hdr;
14602
58050fce 14603 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 14604 if (!msg)
14605 return;
14606
14607 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
14608 if (!hdr) {
14609 nlmsg_free(msg);
14610 return;
14611 }
14612
9360ffd1
DM		 14613 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14614 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14615 goto nla_put_failure;
c9df56b4
JM		 14616
14617 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
14618 if (!attr)
14619 goto nla_put_failure;
14620
9360ffd1
DM		 14621 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
14622 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
14623 (preauth &&
14624 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
14625 goto nla_put_failure;
c9df56b4
JM		 14626
14627 nla_nest_end(msg, attr);
14628
3b7b72ee 14629 genlmsg_end(msg, hdr);
c9df56b4 14630
68eb5503 14631 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14632 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 14633 return;
14634
14635 nla_put_failure:
14636 genlmsg_cancel(msg, hdr);
14637 nlmsg_free(msg);
14638}
14639
947add36
JB		 14640void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
14641 const u8 *bssid, bool preauth, gfp_t gfp)
14642{
14643 struct wireless_dev *wdev = dev->ieee80211_ptr;
14644 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14645 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14646
14647 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
14648 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
14649}
14650EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
14651
14652static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
14653 struct net_device *netdev,
14654 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 14655 gfp_t gfp,
14656 enum nl80211_commands notif,
14657 u8 count)
5314526b
TP		 14658{
14659 struct sk_buff *msg;
14660 void *hdr;
14661
58050fce 14662 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 14663 if (!msg)
14664 return;
14665
f8d7552e 14666 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 14667 if (!hdr) {
14668 nlmsg_free(msg);
14669 return;
14670 }
14671
683b6d3b
JB		 14672 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14673 goto nla_put_failure;
14674
14675 if (nl80211_send_chandef(msg, chandef))
7eab0f64 14676 goto nla_put_failure;
5314526b 14677
f8d7552e
LC		 14678 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
14679 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
14680 goto nla_put_failure;
14681
5314526b
TP		 14682 genlmsg_end(msg, hdr);
14683
68eb5503 14684 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14685 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 14686 return;
14687
14688 nla_put_failure:
14689 genlmsg_cancel(msg, hdr);
14690 nlmsg_free(msg);
14691}
14692
947add36
JB		 14693void cfg80211_ch_switch_notify(struct net_device *dev,
14694 struct cfg80211_chan_def *chandef)
84f10708 14695{
947add36
JB		 14696 struct wireless_dev *wdev = dev->ieee80211_ptr;
14697 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14698 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 14699
e487eaeb 14700 ASSERT_WDEV_LOCK(wdev);
947add36 14701
e487eaeb 14702 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 14703
9e0e2961 14704 wdev->chandef = *chandef;
96f55f12 14705 wdev->preset_chandef = *chandef;
f8d7552e
LC		 14706 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14707 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 14708}
14709EXPORT_SYMBOL(cfg80211_ch_switch_notify);
14710
f8d7552e
LC		 14711void cfg80211_ch_switch_started_notify(struct net_device *dev,
14712 struct cfg80211_chan_def *chandef,
14713 u8 count)
14714{
14715 struct wireless_dev *wdev = dev->ieee80211_ptr;
14716 struct wiphy *wiphy = wdev->wiphy;
14717 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14718
14719 trace_cfg80211_ch_switch_started_notify(dev, chandef);
14720
14721 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14722 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
14723}
14724EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
14725
04f39047
SW		 14726void
14727nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 14728 const struct cfg80211_chan_def *chandef,
04f39047
SW		 14729 enum nl80211_radar_event event,
14730 struct net_device *netdev, gfp_t gfp)
14731{
14732 struct sk_buff *msg;
14733 void *hdr;
14734
14735 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14736 if (!msg)
14737 return;
14738
14739 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
14740 if (!hdr) {
14741 nlmsg_free(msg);
14742 return;
14743 }
14744
14745 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
14746 goto nla_put_failure;
14747
14748 /* NOP and radar events don't need a netdev parameter */
14749 if (netdev) {
14750 struct wireless_dev *wdev = netdev->ieee80211_ptr;
14751
14752 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
2dad624e
ND		 14753 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14754 NL80211_ATTR_PAD))
04f39047
SW		 14755 goto nla_put_failure;
14756 }
14757
14758 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
14759 goto nla_put_failure;
14760
14761 if (nl80211_send_chandef(msg, chandef))
14762 goto nla_put_failure;
14763
9c90a9f6 14764 genlmsg_end(msg, hdr);
04f39047 14765
68eb5503 14766 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14767 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 14768 return;
14769
14770 nla_put_failure:
14771 genlmsg_cancel(msg, hdr);
14772 nlmsg_free(msg);
14773}
14774
7f6cf311
JB		 14775void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
14776 u64 cookie, bool acked, gfp_t gfp)
14777{
14778 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14779 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 14780 struct sk_buff *msg;
14781 void *hdr;
7f6cf311 14782
4ee3e063
BL		 14783 trace_cfg80211_probe_status(dev, addr, cookie, acked);
14784
58050fce 14785 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 14786
7f6cf311
JB		 14787 if (!msg)
14788 return;
14789
14790 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
14791 if (!hdr) {
14792 nlmsg_free(msg);
14793 return;
14794 }
14795
9360ffd1
DM		 14796 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14797 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14798 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2dad624e
ND		 14799 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14800 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14801 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
14802 goto nla_put_failure;
7f6cf311 14803
9c90a9f6 14804 genlmsg_end(msg, hdr);
7f6cf311 14805
68eb5503 14806 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14807 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 14808 return;
14809
14810 nla_put_failure:
14811 genlmsg_cancel(msg, hdr);
14812 nlmsg_free(msg);
14813}
14814EXPORT_SYMBOL(cfg80211_probe_status);
14815
5e760230
JB		 14816void cfg80211_report_obss_beacon(struct wiphy *wiphy,
14817 const u8 *frame, size_t len,
37c73b5f 14818 int freq, int sig_dbm)
5e760230 14819{
f26cbf40 14820 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 14821 struct sk_buff *msg;
14822 void *hdr;
37c73b5f 14823 struct cfg80211_beacon_registration *reg;
5e760230 14824
4ee3e063
BL		 14825 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
14826
37c73b5f
BG		 14827 spin_lock_bh(&rdev->beacon_registrations_lock);
14828 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
14829 msg = nlmsg_new(len + 100, GFP_ATOMIC);
14830 if (!msg) {
14831 spin_unlock_bh(&rdev->beacon_registrations_lock);
14832 return;
14833 }
5e760230 14834
37c73b5f
BG		 14835 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
14836 if (!hdr)
14837 goto nla_put_failure;
5e760230 14838
37c73b5f
BG		 14839 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14840 (freq &&
14841 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
14842 (sig_dbm &&
14843 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
14844 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
14845 goto nla_put_failure;
5e760230 14846
37c73b5f 14847 genlmsg_end(msg, hdr);
5e760230 14848
37c73b5f
BG		 14849 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
14850 }
14851 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 14852 return;
14853
14854 nla_put_failure:
37c73b5f
BG		 14855 spin_unlock_bh(&rdev->beacon_registrations_lock);
14856 if (hdr)
14857 genlmsg_cancel(msg, hdr);
5e760230
JB		 14858 nlmsg_free(msg);
14859}
14860EXPORT_SYMBOL(cfg80211_report_obss_beacon);
14861
cd8f7cb4 14862#ifdef CONFIG_PM
8cd4d456
LC		 14863static int cfg80211_net_detect_results(struct sk_buff *msg,
14864 struct cfg80211_wowlan_wakeup *wakeup)
14865{
14866 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
14867 struct nlattr *nl_results, *nl_match, *nl_freqs;
14868 int i, j;
14869
14870 nl_results = nla_nest_start(
14871 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
14872 if (!nl_results)
14873 return -EMSGSIZE;
14874
14875 for (i = 0; i < nd->n_matches; i++) {
14876 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
14877
14878 nl_match = nla_nest_start(msg, i);
14879 if (!nl_match)
14880 break;
14881
14882 /* The SSID attribute is optional in nl80211, but for
14883 * simplicity reasons it's always present in the
14884 * cfg80211 structure. If a driver can't pass the
14885 * SSID, that needs to be changed. A zero length SSID
14886 * is still a valid SSID (wildcard), so it cannot be
14887 * used for this purpose.
14888 */
14889 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
14890 match->ssid.ssid)) {
14891 nla_nest_cancel(msg, nl_match);
14892 goto out;
14893 }
14894
14895 if (match->n_channels) {
14896 nl_freqs = nla_nest_start(
14897 msg, NL80211_ATTR_SCAN_FREQUENCIES);
14898 if (!nl_freqs) {
14899 nla_nest_cancel(msg, nl_match);
14900 goto out;
14901 }
14902
14903 for (j = 0; j < match->n_channels; j++) {
5528fae8 14904 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 14905 nla_nest_cancel(msg, nl_freqs);
14906 nla_nest_cancel(msg, nl_match);
14907 goto out;
14908 }
14909 }
14910
14911 nla_nest_end(msg, nl_freqs);
14912 }
14913
14914 nla_nest_end(msg, nl_match);
14915 }
14916
14917out:
14918 nla_nest_end(msg, nl_results);
14919 return 0;
14920}
14921
cd8f7cb4
JB		 14922void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
14923 struct cfg80211_wowlan_wakeup *wakeup,
14924 gfp_t gfp)
14925{
f26cbf40 14926 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 14927 struct sk_buff *msg;
14928 void *hdr;
9c90a9f6 14929 int size = 200;
cd8f7cb4
JB		 14930
14931 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
14932
14933 if (wakeup)
14934 size += wakeup->packet_present_len;
14935
14936 msg = nlmsg_new(size, gfp);
14937 if (!msg)
14938 return;
14939
14940 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
14941 if (!hdr)
14942 goto free_msg;
14943
14944 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 14945 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14946 NL80211_ATTR_PAD))
cd8f7cb4
JB		 14947 goto free_msg;
14948
14949 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14950 wdev->netdev->ifindex))
14951 goto free_msg;
14952
14953 if (wakeup) {
14954 struct nlattr *reasons;
14955
14956 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 14957 if (!reasons)
14958 goto free_msg;
cd8f7cb4
JB		 14959
14960 if (wakeup->disconnect &&
14961 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
14962 goto free_msg;
14963 if (wakeup->magic_pkt &&
14964 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
14965 goto free_msg;
14966 if (wakeup->gtk_rekey_failure &&
14967 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
14968 goto free_msg;
14969 if (wakeup->eap_identity_req &&
14970 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
14971 goto free_msg;
14972 if (wakeup->four_way_handshake &&
14973 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
14974 goto free_msg;
14975 if (wakeup->rfkill_release &&
14976 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
14977 goto free_msg;
14978
14979 if (wakeup->pattern_idx >= 0 &&
14980 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
14981 wakeup->pattern_idx))
14982 goto free_msg;
14983
ae917c9f
JB		 14984 if (wakeup->tcp_match &&
14985 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
14986 goto free_msg;
2a0e047e 14987
ae917c9f
JB		 14988 if (wakeup->tcp_connlost &&
14989 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
14990 goto free_msg;
2a0e047e 14991
ae917c9f
JB		 14992 if (wakeup->tcp_nomoretokens &&
14993 nla_put_flag(msg,
14994 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
14995 goto free_msg;
2a0e047e 14996
cd8f7cb4
JB		 14997 if (wakeup->packet) {
14998 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
14999 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
15000
15001 if (!wakeup->packet_80211) {
15002 pkt_attr =
15003 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
15004 len_attr =
15005 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
15006 }
15007
15008 if (wakeup->packet_len &&
15009 nla_put_u32(msg, len_attr, wakeup->packet_len))
15010 goto free_msg;
15011
15012 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
15013 wakeup->packet))
15014 goto free_msg;
15015 }
15016
8cd4d456
LC		 15017 if (wakeup->net_detect &&
15018 cfg80211_net_detect_results(msg, wakeup))
15019 goto free_msg;
15020
cd8f7cb4
JB		 15021 nla_nest_end(msg, reasons);
15022 }
15023
9c90a9f6 15024 genlmsg_end(msg, hdr);
cd8f7cb4 15025
68eb5503 15026 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 15027 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 15028 return;
15029
15030 free_msg:
15031 nlmsg_free(msg);
15032}
15033EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
15034#endif
15035
3475b094
JM		 15036void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
15037 enum nl80211_tdls_operation oper,
15038 u16 reason_code, gfp_t gfp)
15039{
15040 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 15041 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 15042 struct sk_buff *msg;
15043 void *hdr;
3475b094
JM		 15044
15045 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
15046 reason_code);
15047
15048 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15049 if (!msg)
15050 return;
15051
15052 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
15053 if (!hdr) {
15054 nlmsg_free(msg);
15055 return;
15056 }
15057
15058 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15059 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
15060 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
15061 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
15062 (reason_code > 0 &&
15063 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
15064 goto nla_put_failure;
15065
9c90a9f6 15066 genlmsg_end(msg, hdr);
3475b094 15067
68eb5503 15068 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 15069 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 15070 return;
15071
15072 nla_put_failure:
15073 genlmsg_cancel(msg, hdr);
15074 nlmsg_free(msg);
15075}
15076EXPORT_SYMBOL(cfg80211_tdls_oper_request);
15077
026331c4
JM		 15078static int nl80211_netlink_notify(struct notifier_block * nb,
15079 unsigned long state,
15080 void *_notify)
15081{
15082 struct netlink_notify *notify = _notify;
15083 struct cfg80211_registered_device *rdev;
15084 struct wireless_dev *wdev;
37c73b5f 15085 struct cfg80211_beacon_registration *reg, *tmp;
026331c4 15086
8f815cdd 15087 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
026331c4
JM		 15088 return NOTIFY_DONE;
15089
15090 rcu_read_lock();
15091
5e760230 15092 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
ca986ad9 15093 struct cfg80211_sched_scan_request *sched_scan_req;
753aacfd 15094
ca986ad9
AVS		 15095 list_for_each_entry_rcu(sched_scan_req,
15096 &rdev->sched_scan_req_list,
15097 list) {
15098 if (sched_scan_req->owner_nlportid == notify->portid) {
15099 sched_scan_req->nl_owner_dead = true;
753aacfd 15100 schedule_work(&rdev->sched_scan_stop_wk);
ca986ad9 15101 }
753aacfd 15102 }
78f22b6a 15103
53873f13 15104 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15e47304 15105 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 15106
ab81007a
JB		 15107 if (wdev->owner_nlportid == notify->portid) {
15108 wdev->nl_owner_dead = true;
15109 schedule_work(&rdev->destroy_work);
15110 } else if (wdev->conn_owner_nlportid == notify->portid) {
bd2522b1 15111 schedule_work(&wdev->disconnect_wk);
ab81007a 15112 }
78f22b6a
JB		 15113 }
15114
37c73b5f
BG		 15115 spin_lock_bh(&rdev->beacon_registrations_lock);
15116 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
15117 list) {
15118 if (reg->nlportid == notify->portid) {
15119 list_del(&reg->list);
15120 kfree(reg);
15121 break;
15122 }
15123 }
15124 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 15125 }
026331c4
JM		 15126
15127 rcu_read_unlock();
15128
05050753
I		 15129 /*
15130 * It is possible that the user space process that is controlling the
15131 * indoor setting disappeared, so notify the regulatory core.
15132 */
15133 regulatory_netlink_notify(notify->portid);
6784c7db 15134 return NOTIFY_OK;
026331c4
JM		 15135}
15136
15137static struct notifier_block nl80211_netlink_notifier = {
15138 .notifier_call = nl80211_netlink_notify,
15139};
15140
355199e0
JM		 15141void cfg80211_ft_event(struct net_device *netdev,
15142 struct cfg80211_ft_event_params *ft_event)
15143{
15144 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 15145 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 15146 struct sk_buff *msg;
15147 void *hdr;
355199e0
JM		 15148
15149 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
15150
15151 if (!ft_event->target_ap)
15152 return;
15153
4ef8c1c9 15154 msg = nlmsg_new(100 + ft_event->ric_ies_len, GFP_KERNEL);
355199e0
JM		 15155 if (!msg)
15156 return;
15157
15158 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 15159 if (!hdr)
15160 goto out;
355199e0 15161
ae917c9f
JB		 15162 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15163 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
15164 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
15165 goto out;
355199e0 15166
ae917c9f
JB		 15167 if (ft_event->ies &&
15168 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
15169 goto out;
15170 if (ft_event->ric_ies &&
15171 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
15172 ft_event->ric_ies))
15173 goto out;
355199e0 15174
9c90a9f6 15175 genlmsg_end(msg, hdr);
355199e0 15176
68eb5503 15177 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 15178 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 15179 return;
15180 out:
15181 nlmsg_free(msg);
355199e0
JM		 15182}
15183EXPORT_SYMBOL(cfg80211_ft_event);
15184
5de17984
AS		 15185void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
15186{
15187 struct cfg80211_registered_device *rdev;
15188 struct sk_buff *msg;
15189 void *hdr;
15190 u32 nlportid;
15191
f26cbf40 15192 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 15193 if (!rdev->crit_proto_nlportid)
15194 return;
15195
15196 nlportid = rdev->crit_proto_nlportid;
15197 rdev->crit_proto_nlportid = 0;
15198
15199 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15200 if (!msg)
15201 return;
15202
15203 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
15204 if (!hdr)
15205 goto nla_put_failure;
15206
15207 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 15208 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15209 NL80211_ATTR_PAD))
5de17984
AS		 15210 goto nla_put_failure;
15211
15212 genlmsg_end(msg, hdr);
15213
15214 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
15215 return;
15216
15217 nla_put_failure:
15218 if (hdr)
15219 genlmsg_cancel(msg, hdr);
15220 nlmsg_free(msg);
5de17984
AS		 15221}
15222EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
15223
348baf0e
JB		 15224void nl80211_send_ap_stopped(struct wireless_dev *wdev)
15225{
15226 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 15227 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 15228 struct sk_buff *msg;
15229 void *hdr;
15230
15231 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
15232 if (!msg)
15233 return;
15234
15235 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
15236 if (!hdr)
15237 goto out;
15238
15239 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15240 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
2dad624e
ND		 15241 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15242 NL80211_ATTR_PAD))
348baf0e
JB		 15243 goto out;
15244
15245 genlmsg_end(msg, hdr);
15246
15247 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
15248 NL80211_MCGRP_MLME, GFP_KERNEL);
15249 return;
15250 out:
15251 nlmsg_free(msg);
15252}
15253
55682965
JB		 15254/* initialisation/exit functions */
15255
56989f6d 15256int __init nl80211_init(void)
55682965 15257{
0d63cbb5 15258 int err;
55682965 15259
489111e5 15260 err = genl_register_family(&nl80211_fam);
55682965
JB		 15261 if (err)
15262 return err;
15263
026331c4
JM		 15264 err = netlink_register_notifier(&nl80211_netlink_notifier);
15265 if (err)
15266 goto err_out;
15267
55682965
JB		 15268 return 0;
15269 err_out:
15270 genl_unregister_family(&nl80211_fam);
15271 return err;
15272}
15273
15274void nl80211_exit(void)
15275{
026331c4 15276 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 15277 genl_unregister_family(&nl80211_fam);
15278}
ubuntu-bionic-kernel mirror