]> 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
nl80211: add HT/VHT capabilities to AP parameters
[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 },
67fbb16b
SO		 294 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
295 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 296 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
297 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 298 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 299 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
300 .len = IEEE80211_MAX_DATA_LEN },
301 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 302 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 303 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 304 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 305 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 306 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
307 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 308 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 309 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
310 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 311 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 312 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 313 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 314 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 315 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 316 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 317 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 318 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 319 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 320 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
321 .len = IEEE80211_MAX_DATA_LEN },
322 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
323 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 324 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 325 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 326 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 327 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
328 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
329 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
330 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
331 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 332 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 333 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 334 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
335 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 336 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 337 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
338 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
339 .len = NL80211_HT_CAPABILITY_LEN
340 },
1d9d9213 341 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 342 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 343 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 344 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 345 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
11b6b5a4 346 [NL80211_ATTR_AUTH_DATA] = { .type = NLA_BINARY, },
f461be3e 347 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 348 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 349 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
350 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
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
AB		 400 [NL80211_ATTR_NAN_MASTER_PREF] = { .type = NLA_U8 },
401 [NL80211_ATTR_NAN_DUAL] = { .type = NLA_U8 },
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 },
55682965
JB		 413};
414
e31b8213 415/* policy for the key attributes */
b54452b0 416static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 417 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 418 [NL80211_KEY_IDX] = { .type = NLA_U8 },
419 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 420 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 421 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
422 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 423 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 424 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
425};
426
427/* policy for the key default flags */
428static const struct nla_policy
429nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
430 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
431 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 432};
433
f83ace3b 434#ifdef CONFIG_PM
ff1b6e69
JB		 435/* policy for WoWLAN attributes */
436static const struct nla_policy
437nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
438 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
439 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
440 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
441 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 442 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
443 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
444 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
445 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 446 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 447 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 448};
449
450static const struct nla_policy
451nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
452 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
453 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
454 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
455 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
456 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
457 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
458 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
459 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
460 },
461 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
462 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
463 },
464 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
465 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
466 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69 467};
f83ace3b 468#endif /* CONFIG_PM */
ff1b6e69 469
be29b99a
AK		 470/* policy for coalesce rule attributes */
471static const struct nla_policy
472nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
473 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
474 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
475 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
476};
477
e5497d76
JB		 478/* policy for GTK rekey offload attributes */
479static const struct nla_policy
480nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
481 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
482 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
483 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
484};
485
a1f1c21c
LC		 486static const struct nla_policy
487nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 488 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 489 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 490 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 491};
492
3b06d277
AS		 493static const struct nla_policy
494nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
495 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
496 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
497};
498
38de03d2
AS		 499static const struct nla_policy
500nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
501 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
502 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
503 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
504 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
505 },
506};
507
a442b761
AB		 508/* policy for NAN function attributes */
509static const struct nla_policy
510nl80211_nan_func_policy[NL80211_NAN_FUNC_ATTR_MAX + 1] = {
511 [NL80211_NAN_FUNC_TYPE] = { .type = NLA_U8 },
512 [NL80211_NAN_FUNC_SERVICE_ID] = { .type = NLA_BINARY,
513 .len = NL80211_NAN_FUNC_SERVICE_ID_LEN },
514 [NL80211_NAN_FUNC_PUBLISH_TYPE] = { .type = NLA_U8 },
515 [NL80211_NAN_FUNC_PUBLISH_BCAST] = { .type = NLA_FLAG },
516 [NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE] = { .type = NLA_FLAG },
517 [NL80211_NAN_FUNC_FOLLOW_UP_ID] = { .type = NLA_U8 },
518 [NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] = { .type = NLA_U8 },
519 [NL80211_NAN_FUNC_FOLLOW_UP_DEST] = { .len = ETH_ALEN },
520 [NL80211_NAN_FUNC_CLOSE_RANGE] = { .type = NLA_FLAG },
521 [NL80211_NAN_FUNC_TTL] = { .type = NLA_U32 },
522 [NL80211_NAN_FUNC_SERVICE_INFO] = { .type = NLA_BINARY,
523 .len = NL80211_NAN_FUNC_SERVICE_SPEC_INFO_MAX_LEN },
524 [NL80211_NAN_FUNC_SRF] = { .type = NLA_NESTED },
525 [NL80211_NAN_FUNC_RX_MATCH_FILTER] = { .type = NLA_NESTED },
526 [NL80211_NAN_FUNC_TX_MATCH_FILTER] = { .type = NLA_NESTED },
527 [NL80211_NAN_FUNC_INSTANCE_ID] = { .type = NLA_U8 },
528 [NL80211_NAN_FUNC_TERM_REASON] = { .type = NLA_U8 },
529};
530
531/* policy for Service Response Filter attributes */
532static const struct nla_policy
533nl80211_nan_srf_policy[NL80211_NAN_SRF_ATTR_MAX + 1] = {
534 [NL80211_NAN_SRF_INCLUDE] = { .type = NLA_FLAG },
535 [NL80211_NAN_SRF_BF] = { .type = NLA_BINARY,
536 .len = NL80211_NAN_FUNC_SRF_MAX_LEN },
537 [NL80211_NAN_SRF_BF_IDX] = { .type = NLA_U8 },
538 [NL80211_NAN_SRF_MAC_ADDRS] = { .type = NLA_NESTED },
539};
540
97990a06
JB		 541static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
542 struct netlink_callback *cb,
543 struct cfg80211_registered_device **rdev,
544 struct wireless_dev **wdev)
a043897a 545{
97990a06 546 int err;
a043897a 547
97990a06 548 rtnl_lock();
a043897a 549
97990a06
JB		 550 if (!cb->args[0]) {
551 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
c90c39da
JB		 552 genl_family_attrbuf(&nl80211_fam),
553 nl80211_fam.maxattr, nl80211_policy);
97990a06
JB		 554 if (err)
555 goto out_unlock;
67748893 556
c90c39da
JB		 557 *wdev = __cfg80211_wdev_from_attrs(
558 sock_net(skb->sk),
559 genl_family_attrbuf(&nl80211_fam));
97990a06
JB		 560 if (IS_ERR(*wdev)) {
561 err = PTR_ERR(*wdev);
562 goto out_unlock;
563 }
f26cbf40 564 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 565 /* 0 is the first index - add 1 to parse only once */
566 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 567 cb->args[1] = (*wdev)->identifier;
568 } else {
c319d50b
JB		 569 /* subtract the 1 again here */
570 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 571 struct wireless_dev *tmp;
67748893 572
97990a06
JB		 573 if (!wiphy) {
574 err = -ENODEV;
575 goto out_unlock;
576 }
f26cbf40 577 *rdev = wiphy_to_rdev(wiphy);
97990a06 578 *wdev = NULL;
67748893 579
53873f13 580 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
97990a06
JB		 581 if (tmp->identifier == cb->args[1]) {
582 *wdev = tmp;
583 break;
584 }
585 }
67748893 586
97990a06
JB		 587 if (!*wdev) {
588 err = -ENODEV;
589 goto out_unlock;
590 }
67748893
JB		 591 }
592
67748893 593 return 0;
97990a06 594 out_unlock:
67748893
JB		 595 rtnl_unlock();
596 return err;
597}
598
97990a06 599static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 600{
67748893
JB		 601 rtnl_unlock();
602}
603
f4a11bb0
JB		 604/* IE validation */
605static bool is_valid_ie_attr(const struct nlattr *attr)
606{
607 const u8 *pos;
608 int len;
609
610 if (!attr)
611 return true;
612
613 pos = nla_data(attr);
614 len = nla_len(attr);
615
616 while (len) {
617 u8 elemlen;
618
619 if (len < 2)
620 return false;
621 len -= 2;
622
623 elemlen = pos[1];
624 if (elemlen > len)
625 return false;
626
627 len -= elemlen;
628 pos += 2 + elemlen;
629 }
630
631 return true;
632}
633
55682965 634/* message building helper */
15e47304 635static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 636 int flags, u8 cmd)
637{
638 /* since there is no private header just add the generic one */
15e47304 639 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 640}
641
5dab3b8a 642static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 643 struct ieee80211_channel *chan,
644 bool large)
5dab3b8a 645{
ea077c1c
RL		 646 /* Some channels must be completely excluded from the
647 * list to protect old user-space tools from breaking
648 */
649 if (!large && chan->flags &
650 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
651 return 0;
652
9360ffd1
DM		 653 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
654 chan->center_freq))
655 goto nla_put_failure;
5dab3b8a 656
9360ffd1
DM		 657 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
658 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
659 goto nla_put_failure;
8fe02e16
LR		 660 if (chan->flags & IEEE80211_CHAN_NO_IR) {
661 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
662 goto nla_put_failure;
663 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
664 goto nla_put_failure;
665 }
cdc89b97
JB		 666 if (chan->flags & IEEE80211_CHAN_RADAR) {
667 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
668 goto nla_put_failure;
669 if (large) {
670 u32 time;
671
672 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
673
674 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
675 chan->dfs_state))
676 goto nla_put_failure;
677 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
678 time))
679 goto nla_put_failure;
089027e5
JD		 680 if (nla_put_u32(msg,
681 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
682 chan->dfs_cac_ms))
683 goto nla_put_failure;
cdc89b97
JB		 684 }
685 }
5dab3b8a 686
fe1abafd
JB		 687 if (large) {
688 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
689 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
690 goto nla_put_failure;
691 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
692 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
693 goto nla_put_failure;
694 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
695 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
696 goto nla_put_failure;
697 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
698 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
699 goto nla_put_failure;
570dbde1
DS		 700 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
701 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
702 goto nla_put_failure;
06f207fc
AN		 703 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
704 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 705 goto nla_put_failure;
ea077c1c
RL		 706 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
707 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
708 goto nla_put_failure;
709 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
710 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
711 goto nla_put_failure;
fe1abafd
JB		 712 }
713
9360ffd1
DM		 714 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
715 DBM_TO_MBM(chan->max_power)))
716 goto nla_put_failure;
5dab3b8a
LR		 717
718 return 0;
719
720 nla_put_failure:
721 return -ENOBUFS;
722}
723
55682965
JB		 724/* netlink command implementations */
725
b9454e83
JB		 726struct key_parse {
727 struct key_params p;
728 int idx;
e31b8213 729 int type;
b9454e83 730 bool def, defmgmt;
dbd2fd65 731 bool def_uni, def_multi;
b9454e83
JB		 732};
733
734static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
735{
736 struct nlattr *tb[NL80211_KEY_MAX + 1];
737 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
738 nl80211_key_policy);
739 if (err)
740 return err;
741
742 k->def = !!tb[NL80211_KEY_DEFAULT];
743 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
744
dbd2fd65
JB		 745 if (k->def) {
746 k->def_uni = true;
747 k->def_multi = true;
748 }
749 if (k->defmgmt)
750 k->def_multi = true;
751
b9454e83
JB		 752 if (tb[NL80211_KEY_IDX])
753 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
754
755 if (tb[NL80211_KEY_DATA]) {
756 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
757 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
758 }
759
760 if (tb[NL80211_KEY_SEQ]) {
761 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
762 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
763 }
764
765 if (tb[NL80211_KEY_CIPHER])
766 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
767
e31b8213
JB		 768 if (tb[NL80211_KEY_TYPE]) {
769 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
770 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
771 return -EINVAL;
772 }
773
dbd2fd65
JB		 774 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
775 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
7a087e74 776
2da8f419
JB		 777 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
778 tb[NL80211_KEY_DEFAULT_TYPES],
779 nl80211_key_default_policy);
dbd2fd65
JB		 780 if (err)
781 return err;
782
783 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
784 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
785 }
786
b9454e83
JB		 787 return 0;
788}
789
790static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
791{
792 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
793 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
794 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
795 }
796
797 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
798 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
799 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
800 }
801
802 if (info->attrs[NL80211_ATTR_KEY_IDX])
803 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
804
805 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
806 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
807
808 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
809 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
810
dbd2fd65
JB		 811 if (k->def) {
812 k->def_uni = true;
813 k->def_multi = true;
814 }
815 if (k->defmgmt)
816 k->def_multi = true;
817
e31b8213
JB		 818 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
819 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
820 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
821 return -EINVAL;
822 }
823
dbd2fd65
JB		 824 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
825 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
826 int err = nla_parse_nested(
827 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
828 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
829 nl80211_key_default_policy);
830 if (err)
831 return err;
832
833 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
834 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
835 }
836
b9454e83
JB		 837 return 0;
838}
839
840static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
841{
842 int err;
843
844 memset(k, 0, sizeof(*k));
845 k->idx = -1;
e31b8213 846 k->type = -1;
b9454e83
JB		 847
848 if (info->attrs[NL80211_ATTR_KEY])
849 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
850 else
851 err = nl80211_parse_key_old(info, k);
852
853 if (err)
854 return err;
855
856 if (k->def && k->defmgmt)
857 return -EINVAL;
858
dbd2fd65
JB		 859 if (k->defmgmt) {
860 if (k->def_uni || !k->def_multi)
861 return -EINVAL;
862 }
863
b9454e83
JB		 864 if (k->idx != -1) {
865 if (k->defmgmt) {
866 if (k->idx < 4 || k->idx > 5)
867 return -EINVAL;
868 } else if (k->def) {
869 if (k->idx < 0 || k->idx > 3)
870 return -EINVAL;
871 } else {
872 if (k->idx < 0 || k->idx > 5)
873 return -EINVAL;
874 }
875 }
876
877 return 0;
878}
879
fffd0934
JB		 880static struct cfg80211_cached_keys *
881nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 882 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 883{
884 struct key_parse parse;
885 struct nlattr *key;
886 struct cfg80211_cached_keys *result;
887 int rem, err, def = 0;
f1c1f17a
JB		 888 bool have_key = false;
889
890 nla_for_each_nested(key, keys, rem) {
891 have_key = true;
892 break;
893 }
894
895 if (!have_key)
896 return NULL;
fffd0934
JB		 897
898 result = kzalloc(sizeof(*result), GFP_KERNEL);
899 if (!result)
900 return ERR_PTR(-ENOMEM);
901
902 result->def = -1;
fffd0934
JB		 903
904 nla_for_each_nested(key, keys, rem) {
905 memset(&parse, 0, sizeof(parse));
906 parse.idx = -1;
907
908 err = nl80211_parse_key_new(key, &parse);
909 if (err)
910 goto error;
911 err = -EINVAL;
912 if (!parse.p.key)
913 goto error;
42ee231c 914 if (parse.idx < 0 || parse.idx > 3)
fffd0934
JB		 915 goto error;
916 if (parse.def) {
917 if (def)
918 goto error;
919 def = 1;
920 result->def = parse.idx;
dbd2fd65
JB		 921 if (!parse.def_uni || !parse.def_multi)
922 goto error;
fffd0934
JB		 923 } else if (parse.defmgmt)
924 goto error;
925 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 926 parse.idx, false, NULL);
fffd0934
JB		 927 if (err)
928 goto error;
386b1f27
JB		 929 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
930 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
931 err = -EINVAL;
932 goto error;
933 }
fffd0934
JB		 934 result->params[parse.idx].cipher = parse.p.cipher;
935 result->params[parse.idx].key_len = parse.p.key_len;
936 result->params[parse.idx].key = result->data[parse.idx];
937 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee 938
386b1f27
JB		 939 /* must be WEP key if we got here */
940 if (no_ht)
941 *no_ht = true;
fffd0934
JB		 942 }
943
f1c1f17a
JB		 944 if (result->def < 0) {
945 err = -EINVAL;
946 goto error;
947 }
948
fffd0934
JB		 949 return result;
950 error:
951 kfree(result);
952 return ERR_PTR(err);
953}
954
955static int nl80211_key_allowed(struct wireless_dev *wdev)
956{
957 ASSERT_WDEV_LOCK(wdev);
958
fffd0934
JB		 959 switch (wdev->iftype) {
960 case NL80211_IFTYPE_AP:
961 case NL80211_IFTYPE_AP_VLAN:
074ac8df 962 case NL80211_IFTYPE_P2P_GO:
ff973af7 963 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 964 break;
965 case NL80211_IFTYPE_ADHOC:
fffd0934 966 case NL80211_IFTYPE_STATION:
074ac8df 967 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 968 if (!wdev->current_bss)
fffd0934
JB		 969 return -ENOLINK;
970 break;
de4fcbad 971 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 972 case NL80211_IFTYPE_OCB:
de4fcbad 973 case NL80211_IFTYPE_MONITOR:
cb3b7d87 974 case NL80211_IFTYPE_NAN:
de4fcbad
JB		 975 case NL80211_IFTYPE_P2P_DEVICE:
976 case NL80211_IFTYPE_WDS:
977 case NUM_NL80211_IFTYPES:
fffd0934
JB		 978 return -EINVAL;
979 }
980
981 return 0;
982}
983
664834de
JM		 984static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
985 struct nlattr *tb)
986{
987 struct ieee80211_channel *chan;
988
989 if (tb == NULL)
990 return NULL;
991 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
992 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
993 return NULL;
994 return chan;
995}
996
7527a782
JB		 997static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
998{
999 struct nlattr *nl_modes = nla_nest_start(msg, attr);
1000 int i;
1001
1002 if (!nl_modes)
1003 goto nla_put_failure;
1004
1005 i = 0;
1006 while (ifmodes) {
9360ffd1
DM		 1007 if ((ifmodes & 1) && nla_put_flag(msg, i))
1008 goto nla_put_failure;
7527a782
JB		 1009 ifmodes >>= 1;
1010 i++;
1011 }
1012
1013 nla_nest_end(msg, nl_modes);
1014 return 0;
1015
1016nla_put_failure:
1017 return -ENOBUFS;
1018}
1019
1020static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 1021 struct sk_buff *msg,
1022 bool large)
7527a782
JB		 1023{
1024 struct nlattr *nl_combis;
1025 int i, j;
1026
1027 nl_combis = nla_nest_start(msg,
1028 NL80211_ATTR_INTERFACE_COMBINATIONS);
1029 if (!nl_combis)
1030 goto nla_put_failure;
1031
1032 for (i = 0; i < wiphy->n_iface_combinations; i++) {
1033 const struct ieee80211_iface_combination *c;
1034 struct nlattr *nl_combi, *nl_limits;
1035
1036 c = &wiphy->iface_combinations[i];
1037
1038 nl_combi = nla_nest_start(msg, i + 1);
1039 if (!nl_combi)
1040 goto nla_put_failure;
1041
1042 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1043 if (!nl_limits)
1044 goto nla_put_failure;
1045
1046 for (j = 0; j < c->n_limits; j++) {
1047 struct nlattr *nl_limit;
1048
1049 nl_limit = nla_nest_start(msg, j + 1);
1050 if (!nl_limit)
1051 goto nla_put_failure;
9360ffd1
DM		 1052 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1053 c->limits[j].max))
1054 goto nla_put_failure;
7527a782
JB		 1055 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1056 c->limits[j].types))
1057 goto nla_put_failure;
1058 nla_nest_end(msg, nl_limit);
1059 }
1060
1061 nla_nest_end(msg, nl_limits);
1062
9360ffd1
DM		 1063 if (c->beacon_int_infra_match &&
1064 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1065 goto nla_put_failure;
1066 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1067 c->num_different_channels) ||
1068 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1069 c->max_interfaces))
1070 goto nla_put_failure;
cdc89b97 1071 if (large &&
8c48b50a
FF		 1072 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1073 c->radar_detect_widths) ||
1074 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1075 c->radar_detect_regions)))
cdc89b97 1076 goto nla_put_failure;
0c317a02
PK		 1077 if (c->beacon_int_min_gcd &&
1078 nla_put_u32(msg, NL80211_IFACE_COMB_BI_MIN_GCD,
1079 c->beacon_int_min_gcd))
1080 goto nla_put_failure;
7527a782
JB		 1081
1082 nla_nest_end(msg, nl_combi);
1083 }
1084
1085 nla_nest_end(msg, nl_combis);
1086
1087 return 0;
1088nla_put_failure:
1089 return -ENOBUFS;
1090}
1091
3713b4e3 1092#ifdef CONFIG_PM
b56cf720
JB		 1093static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1094 struct sk_buff *msg)
1095{
964dc9e2 1096 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1097 struct nlattr *nl_tcp;
1098
1099 if (!tcp)
1100 return 0;
1101
1102 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1103 if (!nl_tcp)
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 (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1111 tcp->data_payload_max))
1112 return -ENOBUFS;
1113
1114 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1115 return -ENOBUFS;
1116
1117 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1118 sizeof(*tcp->tok), tcp->tok))
1119 return -ENOBUFS;
1120
1121 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1122 tcp->data_interval_max))
1123 return -ENOBUFS;
1124
1125 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1126 tcp->wake_payload_max))
1127 return -ENOBUFS;
1128
1129 nla_nest_end(msg, nl_tcp);
1130 return 0;
1131}
1132
3713b4e3 1133static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1134 struct cfg80211_registered_device *rdev,
b56cf720 1135 bool large)
55682965 1136{
3713b4e3 1137 struct nlattr *nl_wowlan;
55682965 1138
1b8ec87a 1139 if (!rdev->wiphy.wowlan)
3713b4e3 1140 return 0;
55682965 1141
3713b4e3
JB		 1142 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1143 if (!nl_wowlan)
1144 return -ENOBUFS;
9360ffd1 1145
1b8ec87a 1146 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1147 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1148 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1149 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1150 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1151 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1152 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1153 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1154 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1155 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1156 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1157 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1158 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1159 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1160 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1161 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1162 return -ENOBUFS;
9360ffd1 1163
1b8ec87a 1164 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1165 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1166 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1167 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1168 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1169 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1170 };
9360ffd1 1171
3713b4e3
JB		 1172 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1173 sizeof(pat), &pat))
1174 return -ENOBUFS;
1175 }
9360ffd1 1176
75453ccb
LC		 1177 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1178 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1179 rdev->wiphy.wowlan->max_nd_match_sets))
1180 return -ENOBUFS;
1181
1b8ec87a 1182 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1183 return -ENOBUFS;
1184
3713b4e3 1185 nla_nest_end(msg, nl_wowlan);
9360ffd1 1186
3713b4e3
JB		 1187 return 0;
1188}
1189#endif
9360ffd1 1190
be29b99a 1191static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1192 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1193{
1194 struct nl80211_coalesce_rule_support rule;
1195
1b8ec87a 1196 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1197 return 0;
1198
1b8ec87a
ZG		 1199 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1200 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1201 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1202 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1203 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1204 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1205
1206 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1207 return -ENOBUFS;
1208
1209 return 0;
1210}
1211
3713b4e3
JB		 1212static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1213 struct ieee80211_supported_band *sband)
1214{
1215 struct nlattr *nl_rates, *nl_rate;
1216 struct ieee80211_rate *rate;
1217 int i;
87bbbe22 1218
3713b4e3
JB		 1219 /* add HT info */
1220 if (sband->ht_cap.ht_supported &&
1221 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1222 sizeof(sband->ht_cap.mcs),
1223 &sband->ht_cap.mcs) ||
1224 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1225 sband->ht_cap.cap) ||
1226 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1227 sband->ht_cap.ampdu_factor) ||
1228 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1229 sband->ht_cap.ampdu_density)))
1230 return -ENOBUFS;
afe0cbf8 1231
3713b4e3
JB		 1232 /* add VHT info */
1233 if (sband->vht_cap.vht_supported &&
1234 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1235 sizeof(sband->vht_cap.vht_mcs),
1236 &sband->vht_cap.vht_mcs) ||
1237 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1238 sband->vht_cap.cap)))
1239 return -ENOBUFS;
f59ac048 1240
3713b4e3
JB		 1241 /* add bitrates */
1242 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1243 if (!nl_rates)
1244 return -ENOBUFS;
ee688b00 1245
3713b4e3
JB		 1246 for (i = 0; i < sband->n_bitrates; i++) {
1247 nl_rate = nla_nest_start(msg, i);
1248 if (!nl_rate)
1249 return -ENOBUFS;
ee688b00 1250
3713b4e3
JB		 1251 rate = &sband->bitrates[i];
1252 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1253 rate->bitrate))
1254 return -ENOBUFS;
1255 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1256 nla_put_flag(msg,
1257 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1258 return -ENOBUFS;
ee688b00 1259
3713b4e3
JB		 1260 nla_nest_end(msg, nl_rate);
1261 }
d51626df 1262
3713b4e3 1263 nla_nest_end(msg, nl_rates);
bf0c111e 1264
3713b4e3
JB		 1265 return 0;
1266}
ee688b00 1267
3713b4e3
JB		 1268static int
1269nl80211_send_mgmt_stypes(struct sk_buff *msg,
1270 const struct ieee80211_txrx_stypes *mgmt_stypes)
1271{
1272 u16 stypes;
1273 struct nlattr *nl_ftypes, *nl_ifs;
1274 enum nl80211_iftype ift;
1275 int i;
ee688b00 1276
3713b4e3
JB		 1277 if (!mgmt_stypes)
1278 return 0;
5dab3b8a 1279
3713b4e3
JB		 1280 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1281 if (!nl_ifs)
1282 return -ENOBUFS;
e2f367f2 1283
3713b4e3
JB		 1284 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1285 nl_ftypes = nla_nest_start(msg, ift);
1286 if (!nl_ftypes)
1287 return -ENOBUFS;
1288 i = 0;
1289 stypes = mgmt_stypes[ift].tx;
1290 while (stypes) {
1291 if ((stypes & 1) &&
1292 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1293 (i << 4) | IEEE80211_FTYPE_MGMT))
1294 return -ENOBUFS;
1295 stypes >>= 1;
1296 i++;
ee688b00 1297 }
3713b4e3
JB		 1298 nla_nest_end(msg, nl_ftypes);
1299 }
ee688b00 1300
3713b4e3 1301 nla_nest_end(msg, nl_ifs);
ee688b00 1302
3713b4e3
JB		 1303 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1304 if (!nl_ifs)
1305 return -ENOBUFS;
ee688b00 1306
3713b4e3
JB		 1307 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1308 nl_ftypes = nla_nest_start(msg, ift);
1309 if (!nl_ftypes)
1310 return -ENOBUFS;
1311 i = 0;
1312 stypes = mgmt_stypes[ift].rx;
1313 while (stypes) {
1314 if ((stypes & 1) &&
1315 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1316 (i << 4) | IEEE80211_FTYPE_MGMT))
1317 return -ENOBUFS;
1318 stypes >>= 1;
1319 i++;
1320 }
1321 nla_nest_end(msg, nl_ftypes);
1322 }
1323 nla_nest_end(msg, nl_ifs);
ee688b00 1324
3713b4e3
JB		 1325 return 0;
1326}
ee688b00 1327
1794899e
JB		 1328#define CMD(op, n) \
1329 do { \
1330 if (rdev->ops->op) { \
1331 i++; \
1332 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1333 goto nla_put_failure; \
1334 } \
1335 } while (0)
1336
1337static int nl80211_add_commands_unsplit(struct cfg80211_registered_device *rdev,
1338 struct sk_buff *msg)
1339{
1340 int i = 0;
1341
1342 /*
1343 * do *NOT* add anything into this function, new things need to be
1344 * advertised only to new versions of userspace that can deal with
1345 * the split (and they can't possibly care about new features...
1346 */
1347 CMD(add_virtual_intf, NEW_INTERFACE);
1348 CMD(change_virtual_intf, SET_INTERFACE);
1349 CMD(add_key, NEW_KEY);
1350 CMD(start_ap, START_AP);
1351 CMD(add_station, NEW_STATION);
1352 CMD(add_mpath, NEW_MPATH);
1353 CMD(update_mesh_config, SET_MESH_CONFIG);
1354 CMD(change_bss, SET_BSS);
1355 CMD(auth, AUTHENTICATE);
1356 CMD(assoc, ASSOCIATE);
1357 CMD(deauth, DEAUTHENTICATE);
1358 CMD(disassoc, DISASSOCIATE);
1359 CMD(join_ibss, JOIN_IBSS);
1360 CMD(join_mesh, JOIN_MESH);
1361 CMD(set_pmksa, SET_PMKSA);
1362 CMD(del_pmksa, DEL_PMKSA);
1363 CMD(flush_pmksa, FLUSH_PMKSA);
1364 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1365 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1366 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1367 CMD(mgmt_tx, FRAME);
1368 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1369 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1370 i++;
1371 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1372 goto nla_put_failure;
1373 }
1374 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1375 rdev->ops->join_mesh) {
1376 i++;
1377 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1378 goto nla_put_failure;
1379 }
1380 CMD(set_wds_peer, SET_WDS_PEER);
1381 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1382 CMD(tdls_mgmt, TDLS_MGMT);
1383 CMD(tdls_oper, TDLS_OPER);
1384 }
1385 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1386 CMD(sched_scan_start, START_SCHED_SCAN);
1387 CMD(probe_client, PROBE_CLIENT);
1388 CMD(set_noack_map, SET_NOACK_MAP);
1389 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1390 i++;
1391 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1392 goto nla_put_failure;
1393 }
1394 CMD(start_p2p_device, START_P2P_DEVICE);
1395 CMD(set_mcast_rate, SET_MCAST_RATE);
1396#ifdef CONFIG_NL80211_TESTMODE
1397 CMD(testmode_cmd, TESTMODE);
1398#endif
1399
1400 if (rdev->ops->connect || rdev->ops->auth) {
1401 i++;
1402 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1403 goto nla_put_failure;
1404 }
1405
1406 if (rdev->ops->disconnect || rdev->ops->deauth) {
1407 i++;
1408 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1409 goto nla_put_failure;
1410 }
1411
1412 return i;
1413 nla_put_failure:
1414 return -ENOBUFS;
1415}
1416
86e8cf98
JB		 1417struct nl80211_dump_wiphy_state {
1418 s64 filter_wiphy;
1419 long start;
019ae3a9 1420 long split_start, band_start, chan_start, capa_start;
86e8cf98
JB		 1421 bool split;
1422};
1423
1b8ec87a 1424static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1425 enum nl80211_commands cmd,
3713b4e3 1426 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1427 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1428{
1429 void *hdr;
1430 struct nlattr *nl_bands, *nl_band;
1431 struct nlattr *nl_freqs, *nl_freq;
1432 struct nlattr *nl_cmds;
57fbcce3 1433 enum nl80211_band band;
3713b4e3
JB		 1434 struct ieee80211_channel *chan;
1435 int i;
1436 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1437 rdev->wiphy.mgmt_stypes;
fe1abafd 1438 u32 features;
ee688b00 1439
3bb20556 1440 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1441 if (!hdr)
1442 return -ENOBUFS;
ee688b00 1443
86e8cf98
JB		 1444 if (WARN_ON(!state))
1445 return -EINVAL;
ee688b00 1446
1b8ec87a 1447 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1448 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1449 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1450 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1451 cfg80211_rdev_list_generation))
8fdc621d
JB		 1452 goto nla_put_failure;
1453
3bb20556
JB		 1454 if (cmd != NL80211_CMD_NEW_WIPHY)
1455 goto finish;
1456
86e8cf98 1457 switch (state->split_start) {
3713b4e3
JB		 1458 case 0:
1459 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1460 rdev->wiphy.retry_short) ||
3713b4e3 1461 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1462 rdev->wiphy.retry_long) ||
3713b4e3 1463 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1464 rdev->wiphy.frag_threshold) ||
3713b4e3 1465 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1466 rdev->wiphy.rts_threshold) ||
3713b4e3 1467 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1468 rdev->wiphy.coverage_class) ||
3713b4e3 1469 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1470 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1471 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1472 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1473 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1474 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1475 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1476 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1477 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1478 rdev->wiphy.max_match_sets) ||
1479 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1480 rdev->wiphy.max_sched_scan_plans) ||
1481 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1482 rdev->wiphy.max_sched_scan_plan_interval) ||
1483 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1484 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1485 goto nla_put_failure;
3713b4e3 1486
1b8ec87a 1487 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1488 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1489 goto nla_put_failure;
1b8ec87a 1490 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1491 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1492 goto nla_put_failure;
1b8ec87a 1493 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1494 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1495 goto nla_put_failure;
1b8ec87a 1496 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1497 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1498 goto nla_put_failure;
1b8ec87a 1499 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1500 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1501 goto nla_put_failure;
1b8ec87a 1502 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1503 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1504 goto nla_put_failure;
86e8cf98
JB		 1505 state->split_start++;
1506 if (state->split)
3713b4e3
JB		 1507 break;
1508 case 1:
1509 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1510 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1511 rdev->wiphy.cipher_suites))
3713b4e3 1512 goto nla_put_failure;
4745fc09 1513
3713b4e3 1514 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1515 rdev->wiphy.max_num_pmkids))
3713b4e3 1516 goto nla_put_failure;
b23aa676 1517
1b8ec87a 1518 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1519 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1520 goto nla_put_failure;
b23aa676 1521
3713b4e3 1522 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1523 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1524 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1525 rdev->wiphy.available_antennas_rx))
9360ffd1 1526 goto nla_put_failure;
b23aa676 1527
1b8ec87a 1528 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1529 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1530 rdev->wiphy.probe_resp_offload))
3713b4e3 1531 goto nla_put_failure;
8fdc621d 1532
1b8ec87a
ZG		 1533 if ((rdev->wiphy.available_antennas_tx ||
1534 rdev->wiphy.available_antennas_rx) &&
1535 rdev->ops->get_antenna) {
3713b4e3
JB		 1536 u32 tx_ant = 0, rx_ant = 0;
1537 int res;
7a087e74 1538
1b8ec87a 1539 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1540 if (!res) {
1541 if (nla_put_u32(msg,
1542 NL80211_ATTR_WIPHY_ANTENNA_TX,
1543 tx_ant) ||
1544 nla_put_u32(msg,
1545 NL80211_ATTR_WIPHY_ANTENNA_RX,
1546 rx_ant))
1547 goto nla_put_failure;
1548 }
1549 }
a293911d 1550
86e8cf98
JB		 1551 state->split_start++;
1552 if (state->split)
3713b4e3
JB		 1553 break;
1554 case 2:
1555 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1556 rdev->wiphy.interface_modes))
3713b4e3 1557 goto nla_put_failure;
86e8cf98
JB		 1558 state->split_start++;
1559 if (state->split)
3713b4e3
JB		 1560 break;
1561 case 3:
1562 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1563 if (!nl_bands)
1564 goto nla_put_failure;
f7ca38df 1565
86e8cf98 1566 for (band = state->band_start;
57fbcce3 1567 band < NUM_NL80211_BANDS; band++) {
3713b4e3 1568 struct ieee80211_supported_band *sband;
2e161f78 1569
1b8ec87a 1570 sband = rdev->wiphy.bands[band];
2e161f78 1571
3713b4e3
JB		 1572 if (!sband)
1573 continue;
1574
1575 nl_band = nla_nest_start(msg, band);
1576 if (!nl_band)
2e161f78 1577 goto nla_put_failure;
3713b4e3 1578
86e8cf98 1579 switch (state->chan_start) {
3713b4e3
JB		 1580 case 0:
1581 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1582 goto nla_put_failure;
86e8cf98
JB		 1583 state->chan_start++;
1584 if (state->split)
3713b4e3
JB		 1585 break;
1586 default:
1587 /* add frequencies */
1588 nl_freqs = nla_nest_start(
1589 msg, NL80211_BAND_ATTR_FREQS);
1590 if (!nl_freqs)
1591 goto nla_put_failure;
1592
86e8cf98 1593 for (i = state->chan_start - 1;
3713b4e3
JB		 1594 i < sband->n_channels;
1595 i++) {
1596 nl_freq = nla_nest_start(msg, i);
1597 if (!nl_freq)
1598 goto nla_put_failure;
1599
1600 chan = &sband->channels[i];
1601
86e8cf98
JB		 1602 if (nl80211_msg_put_channel(
1603 msg, chan,
1604 state->split))
3713b4e3
JB		 1605 goto nla_put_failure;
1606
1607 nla_nest_end(msg, nl_freq);
86e8cf98 1608 if (state->split)
3713b4e3
JB		 1609 break;
1610 }
1611 if (i < sband->n_channels)
86e8cf98 1612 state->chan_start = i + 2;
3713b4e3 1613 else
86e8cf98 1614 state->chan_start = 0;
3713b4e3
JB		 1615 nla_nest_end(msg, nl_freqs);
1616 }
1617
1618 nla_nest_end(msg, nl_band);
1619
86e8cf98 1620 if (state->split) {
3713b4e3 1621 /* start again here */
86e8cf98 1622 if (state->chan_start)
3713b4e3
JB		 1623 band--;
1624 break;
2e161f78 1625 }
2e161f78 1626 }
3713b4e3 1627 nla_nest_end(msg, nl_bands);
2e161f78 1628
57fbcce3 1629 if (band < NUM_NL80211_BANDS)
86e8cf98 1630 state->band_start = band + 1;
3713b4e3 1631 else
86e8cf98 1632 state->band_start = 0;
74b70a4e 1633
3713b4e3 1634 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1635 if (state->band_start == 0 && state->chan_start == 0)
1636 state->split_start++;
1637 if (state->split)
3713b4e3
JB		 1638 break;
1639 case 4:
1640 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1641 if (!nl_cmds)
2e161f78
JB		 1642 goto nla_put_failure;
1643
1794899e
JB		 1644 i = nl80211_add_commands_unsplit(rdev, msg);
1645 if (i < 0)
1646 goto nla_put_failure;
86e8cf98 1647 if (state->split) {
5de17984
AS		 1648 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1649 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1650 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1651 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1652 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1653 if (rdev->wiphy.features &
1654 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1655 CMD(add_tx_ts, ADD_TX_TS);
ce0ce13a 1656 CMD(set_multicast_to_unicast, SET_MULTICAST_TO_UNICAST);
088e8df8 1657 CMD(update_connect_params, UPDATE_CONNECT_PARAMS);
5de17984 1658 }
3713b4e3 1659#undef CMD
ff1b6e69 1660
3713b4e3 1661 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1662 state->split_start++;
1663 if (state->split)
3713b4e3
JB		 1664 break;
1665 case 5:
1b8ec87a
ZG		 1666 if (rdev->ops->remain_on_channel &&
1667 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1668 nla_put_u32(msg,
1669 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1670 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1671 goto nla_put_failure;
1672
1b8ec87a 1673 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1674 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1675 goto nla_put_failure;
1676
1677 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1678 goto nla_put_failure;
86e8cf98
JB		 1679 state->split_start++;
1680 if (state->split)
3713b4e3
JB		 1681 break;
1682 case 6:
1683#ifdef CONFIG_PM
1b8ec87a 1684 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1685 goto nla_put_failure;
86e8cf98
JB		 1686 state->split_start++;
1687 if (state->split)
3713b4e3
JB		 1688 break;
1689#else
86e8cf98 1690 state->split_start++;
dfb89c56 1691#endif
3713b4e3
JB		 1692 case 7:
1693 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1694 rdev->wiphy.software_iftypes))
3713b4e3 1695 goto nla_put_failure;
ff1b6e69 1696
1b8ec87a 1697 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1698 state->split))
3713b4e3 1699 goto nla_put_failure;
7527a782 1700
86e8cf98
JB		 1701 state->split_start++;
1702 if (state->split)
3713b4e3
JB		 1703 break;
1704 case 8:
1b8ec87a 1705 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1706 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1707 rdev->wiphy.ap_sme_capa))
3713b4e3 1708 goto nla_put_failure;
7527a782 1709
1b8ec87a 1710 features = rdev->wiphy.features;
fe1abafd
JB		 1711 /*
1712 * We can only add the per-channel limit information if the
1713 * dump is split, otherwise it makes it too big. Therefore
1714 * only advertise it in that case.
1715 */
86e8cf98 1716 if (state->split)
fe1abafd
JB		 1717 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1718 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1719 goto nla_put_failure;
562a7480 1720
1b8ec87a 1721 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1722 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1723 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1724 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1725 goto nla_put_failure;
1f074bd8 1726
1b8ec87a
ZG		 1727 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1728 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1729 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1730 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1731 goto nla_put_failure;
7e7c8926 1732
3713b4e3
JB		 1733 /*
1734 * Any information below this point is only available to
1735 * applications that can deal with it being split. This
1736 * helps ensure that newly added capabilities don't break
1737 * older tools by overrunning their buffers.
1738 *
1739 * We still increment split_start so that in the split
1740 * case we'll continue with more data in the next round,
1741 * but break unconditionally so unsplit data stops here.
1742 */
86e8cf98 1743 state->split_start++;
3713b4e3
JB		 1744 break;
1745 case 9:
1b8ec87a 1746 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1747 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1748 rdev->wiphy.extended_capabilities_len,
1749 rdev->wiphy.extended_capabilities) ||
fe1abafd 1750 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1751 rdev->wiphy.extended_capabilities_len,
1752 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1753 goto nla_put_failure;
a50df0c4 1754
1b8ec87a 1755 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1756 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1757 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1758 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1759 goto nla_put_failure;
1760
be29b99a
AK		 1761 state->split_start++;
1762 break;
1763 case 10:
1b8ec87a 1764 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1765 goto nla_put_failure;
1766
1b8ec87a 1767 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1768 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1769 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1770 goto nla_put_failure;
b43504cf 1771
1b8ec87a 1772 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1773 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1774 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1775 goto nla_put_failure;
1776
ad7e718c
JB		 1777 state->split_start++;
1778 break;
1779 case 11:
1b8ec87a 1780 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1781 const struct nl80211_vendor_cmd_info *info;
1782 struct nlattr *nested;
1783
1784 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1785 if (!nested)
1786 goto nla_put_failure;
1787
1b8ec87a
ZG		 1788 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1789 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1790 if (nla_put(msg, i + 1, sizeof(*info), info))
1791 goto nla_put_failure;
1792 }
1793 nla_nest_end(msg, nested);
1794 }
1795
1b8ec87a 1796 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1797 const struct nl80211_vendor_cmd_info *info;
1798 struct nlattr *nested;
ad7e718c 1799
567ffc35
JB		 1800 nested = nla_nest_start(msg,
1801 NL80211_ATTR_VENDOR_EVENTS);
1802 if (!nested)
ad7e718c 1803 goto nla_put_failure;
567ffc35 1804
1b8ec87a
ZG		 1805 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1806 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1807 if (nla_put(msg, i + 1, sizeof(*info), info))
1808 goto nla_put_failure;
1809 }
1810 nla_nest_end(msg, nested);
1811 }
9a774c78
AO		 1812 state->split_start++;
1813 break;
1814 case 12:
1815 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1816 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1817 rdev->wiphy.max_num_csa_counters))
1818 goto nla_put_failure;
01e0daa4 1819
1bdd716c
AN		 1820 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1821 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1822 goto nla_put_failure;
1823
d75bb06b
GKS		 1824 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1825 sizeof(rdev->wiphy.ext_features),
1826 rdev->wiphy.ext_features))
1827 goto nla_put_failure;
1828
38de03d2
AS		 1829 if (rdev->wiphy.bss_select_support) {
1830 struct nlattr *nested;
1831 u32 bss_select_support = rdev->wiphy.bss_select_support;
1832
1833 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1834 if (!nested)
1835 goto nla_put_failure;
1836
1837 i = 0;
1838 while (bss_select_support) {
1839 if ((bss_select_support & 1) &&
1840 nla_put_flag(msg, i))
1841 goto nla_put_failure;
1842 i++;
1843 bss_select_support >>= 1;
1844 }
1845 nla_nest_end(msg, nested);
1846 }
1847
019ae3a9
KV		 1848 state->split_start++;
1849 break;
1850 case 13:
1851 if (rdev->wiphy.num_iftype_ext_capab &&
1852 rdev->wiphy.iftype_ext_capab) {
1853 struct nlattr *nested_ext_capab, *nested;
1854
1855 nested = nla_nest_start(msg,
1856 NL80211_ATTR_IFTYPE_EXT_CAPA);
1857 if (!nested)
1858 goto nla_put_failure;
1859
1860 for (i = state->capa_start;
1861 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1862 const struct wiphy_iftype_ext_capab *capab;
1863
1864 capab = &rdev->wiphy.iftype_ext_capab[i];
1865
1866 nested_ext_capab = nla_nest_start(msg, i);
1867 if (!nested_ext_capab ||
1868 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1869 capab->iftype) ||
1870 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1871 capab->extended_capabilities_len,
1872 capab->extended_capabilities) ||
1873 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1874 capab->extended_capabilities_len,
1875 capab->extended_capabilities_mask))
1876 goto nla_put_failure;
1877
1878 nla_nest_end(msg, nested_ext_capab);
1879 if (state->split)
1880 break;
1881 }
1882 nla_nest_end(msg, nested);
1883 if (i < rdev->wiphy.num_iftype_ext_capab) {
1884 state->capa_start = i + 1;
1885 break;
1886 }
1887 }
1888
3713b4e3 1889 /* done */
86e8cf98 1890 state->split_start = 0;
3713b4e3
JB		 1891 break;
1892 }
3bb20556 1893 finish:
053c095a
JB		 1894 genlmsg_end(msg, hdr);
1895 return 0;
55682965
JB		 1896
1897 nla_put_failure:
bc3ed28c
TG		 1898 genlmsg_cancel(msg, hdr);
1899 return -EMSGSIZE;
55682965
JB		 1900}
1901
86e8cf98
JB		 1902static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1903 struct netlink_callback *cb,
1904 struct nl80211_dump_wiphy_state *state)
1905{
c90c39da 1906 struct nlattr **tb = genl_family_attrbuf(&nl80211_fam);
86e8cf98
JB		 1907 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1908 tb, nl80211_fam.maxattr, nl80211_policy);
1909 /* ignore parse errors for backward compatibility */
1910 if (ret)
1911 return 0;
1912
1913 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1914 if (tb[NL80211_ATTR_WIPHY])
1915 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1916 if (tb[NL80211_ATTR_WDEV])
1917 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1918 if (tb[NL80211_ATTR_IFINDEX]) {
1919 struct net_device *netdev;
1920 struct cfg80211_registered_device *rdev;
1921 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1922
7f2b8562 1923 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1924 if (!netdev)
1925 return -ENODEV;
1926 if (netdev->ieee80211_ptr) {
f26cbf40 1927 rdev = wiphy_to_rdev(
86e8cf98
JB		 1928 netdev->ieee80211_ptr->wiphy);
1929 state->filter_wiphy = rdev->wiphy_idx;
1930 }
86e8cf98
JB		 1931 }
1932
1933 return 0;
1934}
1935
55682965
JB		 1936static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1937{
645e77de 1938 int idx = 0, ret;
86e8cf98 1939 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1940 struct cfg80211_registered_device *rdev;
3a5a423b 1941
5fe231e8 1942 rtnl_lock();
86e8cf98
JB		 1943 if (!state) {
1944 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1945 if (!state) {
1946 rtnl_unlock();
86e8cf98 1947 return -ENOMEM;
3713b4e3 1948 }
86e8cf98
JB		 1949 state->filter_wiphy = -1;
1950 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1951 if (ret) {
1952 kfree(state);
1953 rtnl_unlock();
1954 return ret;
3713b4e3 1955 }
86e8cf98 1956 cb->args[0] = (long)state;
3713b4e3
JB		 1957 }
1958
1b8ec87a
ZG		 1959 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1960 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1961 continue;
86e8cf98 1962 if (++idx <= state->start)
55682965 1963 continue;
86e8cf98 1964 if (state->filter_wiphy != -1 &&
1b8ec87a 1965 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1966 continue;
1967 /* attempt to fit multiple wiphy data chunks into the skb */
1968 do {
3bb20556
JB		 1969 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1970 skb,
3713b4e3
JB		 1971 NETLINK_CB(cb->skb).portid,
1972 cb->nlh->nlmsg_seq,
86e8cf98 1973 NLM_F_MULTI, state);
3713b4e3
JB		 1974 if (ret < 0) {
1975 /*
1976 * If sending the wiphy data didn't fit (ENOBUFS
1977 * or EMSGSIZE returned), this SKB is still
1978 * empty (so it's not too big because another
1979 * wiphy dataset is already in the skb) and
1980 * we've not tried to adjust the dump allocation
1981 * yet ... then adjust the alloc size to be
1982 * bigger, and return 1 but with the empty skb.
1983 * This results in an empty message being RX'ed
1984 * in userspace, but that is ignored.
1985 *
1986 * We can then retry with the larger buffer.
1987 */
1988 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1989 !skb->len && !state->split &&
3713b4e3
JB		 1990 cb->min_dump_alloc < 4096) {
1991 cb->min_dump_alloc = 4096;
f12cb289 1992 state->split_start = 0;
d98cae64 1993 rtnl_unlock();
3713b4e3
JB		 1994 return 1;
1995 }
1996 idx--;
1997 break;
645e77de 1998 }
86e8cf98 1999 } while (state->split_start > 0);
3713b4e3 2000 break;
55682965 2001 }
5fe231e8 2002 rtnl_unlock();
55682965 2003
86e8cf98 2004 state->start = idx;
55682965
JB		 2005
2006 return skb->len;
2007}
2008
86e8cf98
JB		 2009static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
2010{
2011 kfree((void *)cb->args[0]);
2012 return 0;
2013}
2014
55682965
JB		 2015static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
2016{
2017 struct sk_buff *msg;
1b8ec87a 2018 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 2019 struct nl80211_dump_wiphy_state state = {};
55682965 2020
645e77de 2021 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 2022 if (!msg)
4c476991 2023 return -ENOMEM;
55682965 2024
3bb20556
JB		 2025 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
2026 info->snd_portid, info->snd_seq, 0,
86e8cf98 2027 &state) < 0) {
4c476991
JB		 2028 nlmsg_free(msg);
2029 return -ENOBUFS;
2030 }
55682965 2031
134e6375 2032 return genlmsg_reply(msg, info);
55682965
JB		 2033}
2034
31888487
JM		 2035static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
2036 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
2037 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
2038 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
2039 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
2040 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
2041};
2042
2043static int parse_txq_params(struct nlattr *tb[],
2044 struct ieee80211_txq_params *txq_params)
2045{
a3304b0a 2046 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 2047 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
2048 !tb[NL80211_TXQ_ATTR_AIFS])
2049 return -EINVAL;
2050
a3304b0a 2051 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 2052 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
2053 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
2054 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
2055 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
2056
a3304b0a
JB		 2057 if (txq_params->ac >= NL80211_NUM_ACS)
2058 return -EINVAL;
2059
31888487
JM		 2060 return 0;
2061}
2062
f444de05
JB		 2063static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2064{
2065 /*
cc1d2806
JB		 2066 * You can only set the channel explicitly for WDS interfaces,
2067 * all others have their channel managed via their respective
2068 * "establish a connection" command (connect, join, ...)
2069 *
2070 * For AP/GO and mesh mode, the channel can be set with the
2071 * channel userspace API, but is only stored and passed to the
2072 * low-level driver when the AP starts or the mesh is joined.
2073 * This is for backward compatibility, userspace can also give
2074 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 2075 *
2076 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 2077 * whatever else is going on, so they have their own special
2078 * operation to set the monitor channel if possible.
f444de05
JB		 2079 */
2080 return !wdev ||
2081 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 2082 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 2083 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2084 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 2085}
2086
683b6d3b
JB		 2087static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2088 struct genl_info *info,
2089 struct cfg80211_chan_def *chandef)
2090{
dbeca2ea 2091 u32 control_freq;
683b6d3b
JB		 2092
2093 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2094 return -EINVAL;
2095
2096 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2097
2098 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 2099 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2100 chandef->center_freq1 = control_freq;
2101 chandef->center_freq2 = 0;
683b6d3b
JB		 2102
2103 /* Primary channel not allowed */
2104 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2105 return -EINVAL;
2106
3d9d1d66
JB		 2107 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2108 enum nl80211_channel_type chantype;
2109
2110 chantype = nla_get_u32(
2111 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2112
2113 switch (chantype) {
2114 case NL80211_CHAN_NO_HT:
2115 case NL80211_CHAN_HT20:
2116 case NL80211_CHAN_HT40PLUS:
2117 case NL80211_CHAN_HT40MINUS:
2118 cfg80211_chandef_create(chandef, chandef->chan,
2119 chantype);
2120 break;
2121 default:
2122 return -EINVAL;
2123 }
2124 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2125 chandef->width =
2126 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2127 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2128 chandef->center_freq1 =
2129 nla_get_u32(
2130 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2131 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2132 chandef->center_freq2 =
2133 nla_get_u32(
2134 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2135 }
2136
9f5e8f6e 2137 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 2138 return -EINVAL;
2139
9f5e8f6e
JB		 2140 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2141 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 2142 return -EINVAL;
2143
2f301ab2
SW		 2144 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2145 chandef->width == NL80211_CHAN_WIDTH_10) &&
2146 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2147 return -EINVAL;
2148
683b6d3b
JB		 2149 return 0;
2150}
2151
f444de05 2152static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 2153 struct net_device *dev,
f444de05
JB		 2154 struct genl_info *info)
2155{
683b6d3b 2156 struct cfg80211_chan_def chandef;
f444de05 2157 int result;
e8c9bd5b 2158 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2159 struct wireless_dev *wdev = NULL;
e8c9bd5b 2160
e16821bc
JM		 2161 if (dev)
2162 wdev = dev->ieee80211_ptr;
f444de05
JB		 2163 if (!nl80211_can_set_dev_channel(wdev))
2164 return -EOPNOTSUPP;
e16821bc
JM		 2165 if (wdev)
2166 iftype = wdev->iftype;
f444de05 2167
683b6d3b
JB		 2168 result = nl80211_parse_chandef(rdev, info, &chandef);
2169 if (result)
2170 return result;
f444de05 2171
e8c9bd5b 2172 switch (iftype) {
aa430da4
JB		 2173 case NL80211_IFTYPE_AP:
2174 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2175 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2176 iftype)) {
aa430da4
JB		 2177 result = -EINVAL;
2178 break;
2179 }
e16821bc
JM		 2180 if (wdev->beacon_interval) {
2181 if (!dev || !rdev->ops->set_ap_chanwidth ||
2182 !(rdev->wiphy.features &
2183 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2184 result = -EBUSY;
2185 break;
2186 }
2187
2188 /* Only allow dynamic channel width changes */
2189 if (chandef.chan != wdev->preset_chandef.chan) {
2190 result = -EBUSY;
2191 break;
2192 }
2193 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2194 if (result)
2195 break;
2196 }
683b6d3b 2197 wdev->preset_chandef = chandef;
aa430da4
JB		 2198 result = 0;
2199 break;
cc1d2806 2200 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2201 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2202 break;
e8c9bd5b 2203 case NL80211_IFTYPE_MONITOR:
683b6d3b 2204 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2205 break;
aa430da4 2206 default:
e8c9bd5b 2207 result = -EINVAL;
f444de05 2208 }
f444de05
JB		 2209
2210 return result;
2211}
2212
2213static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2214{
4c476991
JB		 2215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2216 struct net_device *netdev = info->user_ptr[1];
f444de05 2217
e16821bc 2218 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2219}
2220
e8347eba
BJ		 2221static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2222{
43b19952
JB		 2223 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2224 struct net_device *dev = info->user_ptr[1];
2225 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2226 const u8 *bssid;
e8347eba
BJ		 2227
2228 if (!info->attrs[NL80211_ATTR_MAC])
2229 return -EINVAL;
2230
43b19952
JB		 2231 if (netif_running(dev))
2232 return -EBUSY;
e8347eba 2233
43b19952
JB		 2234 if (!rdev->ops->set_wds_peer)
2235 return -EOPNOTSUPP;
e8347eba 2236
43b19952
JB		 2237 if (wdev->iftype != NL80211_IFTYPE_WDS)
2238 return -EOPNOTSUPP;
e8347eba
BJ		 2239
2240 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2241 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2242}
2243
55682965
JB		 2244static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2245{
2246 struct cfg80211_registered_device *rdev;
f444de05
JB		 2247 struct net_device *netdev = NULL;
2248 struct wireless_dev *wdev;
a1e567c8 2249 int result = 0, rem_txq_params = 0;
31888487 2250 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2251 u32 changed;
2252 u8 retry_short = 0, retry_long = 0;
2253 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2254 u8 coverage_class = 0;
55682965 2255
5fe231e8
JB		 2256 ASSERT_RTNL();
2257
f444de05
JB		 2258 /*
2259 * Try to find the wiphy and netdev. Normally this
2260 * function shouldn't need the netdev, but this is
2261 * done for backward compatibility -- previously
2262 * setting the channel was done per wiphy, but now
2263 * it is per netdev. Previous userland like hostapd
2264 * also passed a netdev to set_wiphy, so that it is
2265 * possible to let that go to the right netdev!
2266 */
4bbf4d56 2267
f444de05
JB		 2268 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2269 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2270
7f2b8562 2271 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2272 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2273 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2274 else
f444de05 2275 netdev = NULL;
4bbf4d56
JB		 2276 }
2277
f444de05 2278 if (!netdev) {
878d9ec7
JB		 2279 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2280 info->attrs);
5fe231e8 2281 if (IS_ERR(rdev))
4c476991 2282 return PTR_ERR(rdev);
f444de05
JB		 2283 wdev = NULL;
2284 netdev = NULL;
2285 result = 0;
71fe96bf 2286 } else
f444de05 2287 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2288
2289 /*
2290 * end workaround code, by now the rdev is available
2291 * and locked, and wdev may or may not be NULL.
2292 */
4bbf4d56
JB		 2293
2294 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2295 result = cfg80211_dev_rename(
2296 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2297
4bbf4d56 2298 if (result)
7f2b8562 2299 return result;
31888487
JM		 2300
2301 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2302 struct ieee80211_txq_params txq_params;
2303 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2304
7f2b8562
YX		 2305 if (!rdev->ops->set_txq_params)
2306 return -EOPNOTSUPP;
31888487 2307
7f2b8562
YX		 2308 if (!netdev)
2309 return -EINVAL;
f70f01c2 2310
133a3ff2 2311 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2312 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2313 return -EINVAL;
133a3ff2 2314
7f2b8562
YX		 2315 if (!netif_running(netdev))
2316 return -ENETDOWN;
2b5f8b0b 2317
31888487
JM		 2318 nla_for_each_nested(nl_txq_params,
2319 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2320 rem_txq_params) {
bfe2c7b1
JB		 2321 result = nla_parse_nested(tb, NL80211_TXQ_ATTR_MAX,
2322 nl_txq_params,
2323 txq_params_policy);
ae811e21
JB		 2324 if (result)
2325 return result;
31888487
JM		 2326 result = parse_txq_params(tb, &txq_params);
2327 if (result)
7f2b8562 2328 return result;
31888487 2329
e35e4d28
HG		 2330 result = rdev_set_txq_params(rdev, netdev,
2331 &txq_params);
31888487 2332 if (result)
7f2b8562 2333 return result;
31888487
JM		 2334 }
2335 }
55682965 2336
72bdcf34 2337 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2338 result = __nl80211_set_channel(
2339 rdev,
2340 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2341 info);
72bdcf34 2342 if (result)
7f2b8562 2343 return result;
72bdcf34
JM		 2344 }
2345
98d2ff8b 2346 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2347 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2348 enum nl80211_tx_power_setting type;
2349 int idx, mbm = 0;
2350
c8442118
JB		 2351 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2352 txp_wdev = NULL;
2353
7f2b8562
YX		 2354 if (!rdev->ops->set_tx_power)
2355 return -EOPNOTSUPP;
98d2ff8b
JO		 2356
2357 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2358 type = nla_get_u32(info->attrs[idx]);
2359
2360 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2361 (type != NL80211_TX_POWER_AUTOMATIC))
2362 return -EINVAL;
98d2ff8b
JO		 2363
2364 if (type != NL80211_TX_POWER_AUTOMATIC) {
2365 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2366 mbm = nla_get_u32(info->attrs[idx]);
2367 }
2368
c8442118 2369 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2370 if (result)
7f2b8562 2371 return result;
98d2ff8b
JO		 2372 }
2373
afe0cbf8
BR		 2374 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2375 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2376 u32 tx_ant, rx_ant;
7a087e74 2377
7f531e03
BR		 2378 if ((!rdev->wiphy.available_antennas_tx &&
2379 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2380 !rdev->ops->set_antenna)
2381 return -EOPNOTSUPP;
afe0cbf8
BR		 2382
2383 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2384 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2385
a7ffac95 2386 /* reject antenna configurations which don't match the
7f531e03
BR		 2387 * available antenna masks, except for the "all" mask */
2388 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2389 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2390 return -EINVAL;
a7ffac95 2391
7f531e03
BR		 2392 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2393 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2394
e35e4d28 2395 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2396 if (result)
7f2b8562 2397 return result;
afe0cbf8
BR		 2398 }
2399
b9a5f8ca
JM		 2400 changed = 0;
2401
2402 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2403 retry_short = nla_get_u8(
2404 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2405 if (retry_short == 0)
2406 return -EINVAL;
2407
b9a5f8ca
JM		 2408 changed |= WIPHY_PARAM_RETRY_SHORT;
2409 }
2410
2411 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2412 retry_long = nla_get_u8(
2413 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2414 if (retry_long == 0)
2415 return -EINVAL;
2416
b9a5f8ca
JM		 2417 changed |= WIPHY_PARAM_RETRY_LONG;
2418 }
2419
2420 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2421 frag_threshold = nla_get_u32(
2422 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2423 if (frag_threshold < 256)
2424 return -EINVAL;
2425
b9a5f8ca
JM		 2426 if (frag_threshold != (u32) -1) {
2427 /*
2428 * Fragments (apart from the last one) are required to
2429 * have even length. Make the fragmentation code
2430 * simpler by stripping LSB should someone try to use
2431 * odd threshold value.
2432 */
2433 frag_threshold &= ~0x1;
2434 }
2435 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2436 }
2437
2438 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2439 rts_threshold = nla_get_u32(
2440 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2441 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2442 }
2443
81077e82 2444 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2445 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2446 return -EINVAL;
2447
81077e82
LT		 2448 coverage_class = nla_get_u8(
2449 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2450 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2451 }
2452
3057dbfd
LB		 2453 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2454 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2455 return -EOPNOTSUPP;
2456
2457 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2458 }
2459
b9a5f8ca
JM		 2460 if (changed) {
2461 u8 old_retry_short, old_retry_long;
2462 u32 old_frag_threshold, old_rts_threshold;
81077e82 2463 u8 old_coverage_class;
b9a5f8ca 2464
7f2b8562
YX		 2465 if (!rdev->ops->set_wiphy_params)
2466 return -EOPNOTSUPP;
b9a5f8ca
JM		 2467
2468 old_retry_short = rdev->wiphy.retry_short;
2469 old_retry_long = rdev->wiphy.retry_long;
2470 old_frag_threshold = rdev->wiphy.frag_threshold;
2471 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2472 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2473
2474 if (changed & WIPHY_PARAM_RETRY_SHORT)
2475 rdev->wiphy.retry_short = retry_short;
2476 if (changed & WIPHY_PARAM_RETRY_LONG)
2477 rdev->wiphy.retry_long = retry_long;
2478 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2479 rdev->wiphy.frag_threshold = frag_threshold;
2480 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2481 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2482 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2483 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2484
e35e4d28 2485 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2486 if (result) {
2487 rdev->wiphy.retry_short = old_retry_short;
2488 rdev->wiphy.retry_long = old_retry_long;
2489 rdev->wiphy.frag_threshold = old_frag_threshold;
2490 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2491 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2492 return result;
b9a5f8ca
JM		 2493 }
2494 }
7f2b8562 2495 return 0;
55682965
JB		 2496}
2497
71bbc994
JB		 2498static inline u64 wdev_id(struct wireless_dev *wdev)
2499{
2500 return (u64)wdev->identifier |
f26cbf40 2501 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2502}
55682965 2503
683b6d3b 2504static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2505 const struct cfg80211_chan_def *chandef)
683b6d3b 2506{
601555cd
JB		 2507 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2508 return -EINVAL;
3d9d1d66 2509
683b6d3b
JB		 2510 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2511 chandef->chan->center_freq))
2512 return -ENOBUFS;
3d9d1d66
JB		 2513 switch (chandef->width) {
2514 case NL80211_CHAN_WIDTH_20_NOHT:
2515 case NL80211_CHAN_WIDTH_20:
2516 case NL80211_CHAN_WIDTH_40:
2517 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2518 cfg80211_get_chandef_type(chandef)))
2519 return -ENOBUFS;
2520 break;
2521 default:
2522 break;
2523 }
2524 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2525 return -ENOBUFS;
2526 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2527 return -ENOBUFS;
2528 if (chandef->center_freq2 &&
2529 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2530 return -ENOBUFS;
2531 return 0;
2532}
2533
15e47304 2534static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2535 struct cfg80211_registered_device *rdev,
8f894be2 2536 struct wireless_dev *wdev, bool removal)
55682965 2537{
72fb2abc 2538 struct net_device *dev = wdev->netdev;
8f894be2 2539 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2540 void *hdr;
2541
8f894be2
TB		 2542 if (removal)
2543 cmd = NL80211_CMD_DEL_INTERFACE;
2544
2545 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2546 if (!hdr)
2547 return -1;
2548
72fb2abc
JB		 2549 if (dev &&
2550 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2551 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2552 goto nla_put_failure;
2553
2554 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2555 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2dad624e
ND		 2556 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2557 NL80211_ATTR_PAD) ||
98104fde 2558 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2559 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2560 rdev->devlist_generation ^
2561 (cfg80211_rdev_list_generation << 2)))
2562 goto nla_put_failure;
f5ea9120 2563
5b7ccaf3 2564 if (rdev->ops->get_channel) {
683b6d3b
JB		 2565 int ret;
2566 struct cfg80211_chan_def chandef;
2567
2568 ret = rdev_get_channel(rdev, wdev, &chandef);
2569 if (ret == 0) {
2570 if (nl80211_send_chandef(msg, &chandef))
2571 goto nla_put_failure;
2572 }
d91df0e3
PF		 2573 }
2574
d55d0d59
RM		 2575 if (rdev->ops->get_tx_power) {
2576 int dbm, ret;
2577
2578 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2579 if (ret == 0 &&
2580 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2581 DBM_TO_MBM(dbm)))
2582 goto nla_put_failure;
2583 }
2584
b84e7a05
AQ		 2585 if (wdev->ssid_len) {
2586 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2587 goto nla_put_failure;
2588 }
2589
053c095a
JB		 2590 genlmsg_end(msg, hdr);
2591 return 0;
55682965
JB		 2592
2593 nla_put_failure:
bc3ed28c
TG		 2594 genlmsg_cancel(msg, hdr);
2595 return -EMSGSIZE;
55682965
JB		 2596}
2597
2598static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2599{
2600 int wp_idx = 0;
2601 int if_idx = 0;
2602 int wp_start = cb->args[0];
2603 int if_start = cb->args[1];
b7fb44da 2604 int filter_wiphy = -1;
f5ea9120 2605 struct cfg80211_registered_device *rdev;
55682965
JB		 2606 struct wireless_dev *wdev;
2607
5fe231e8 2608 rtnl_lock();
b7fb44da
DK		 2609 if (!cb->args[2]) {
2610 struct nl80211_dump_wiphy_state state = {
2611 .filter_wiphy = -1,
2612 };
2613 int ret;
2614
2615 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2616 if (ret)
2617 return ret;
2618
2619 filter_wiphy = state.filter_wiphy;
2620
2621 /*
2622 * if filtering, set cb->args[2] to +1 since 0 is the default
2623 * value needed to determine that parsing is necessary.
2624 */
2625 if (filter_wiphy >= 0)
2626 cb->args[2] = filter_wiphy + 1;
2627 else
2628 cb->args[2] = -1;
2629 } else if (cb->args[2] > 0) {
2630 filter_wiphy = cb->args[2] - 1;
2631 }
2632
f5ea9120
JB		 2633 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2634 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2635 continue;
bba95fef
JB		 2636 if (wp_idx < wp_start) {
2637 wp_idx++;
55682965 2638 continue;
bba95fef 2639 }
b7fb44da
DK		 2640
2641 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2642 continue;
2643
55682965
JB		 2644 if_idx = 0;
2645
53873f13 2646 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
bba95fef
JB		 2647 if (if_idx < if_start) {
2648 if_idx++;
55682965 2649 continue;
bba95fef 2650 }
15e47304 2651 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2652 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2653 rdev, wdev, false) < 0) {
bba95fef
JB		 2654 goto out;
2655 }
2656 if_idx++;
55682965 2657 }
bba95fef
JB		 2658
2659 wp_idx++;
55682965 2660 }
bba95fef 2661 out:
5fe231e8 2662 rtnl_unlock();
55682965
JB		 2663
2664 cb->args[0] = wp_idx;
2665 cb->args[1] = if_idx;
2666
2667 return skb->len;
2668}
2669
2670static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2671{
2672 struct sk_buff *msg;
1b8ec87a 2673 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2674 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2675
fd2120ca 2676 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2677 if (!msg)
4c476991 2678 return -ENOMEM;
55682965 2679
15e47304 2680 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2681 rdev, wdev, false) < 0) {
4c476991
JB		 2682 nlmsg_free(msg);
2683 return -ENOBUFS;
2684 }
55682965 2685
134e6375 2686 return genlmsg_reply(msg, info);
55682965
JB		 2687}
2688
66f7ac50
MW		 2689static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2690 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2691 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2692 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2693 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2694 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2695 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2696};
2697
2698static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2699{
2700 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2701 int flag;
2702
2703 *mntrflags = 0;
2704
2705 if (!nla)
2706 return -EINVAL;
2707
2708 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2709 nla, mntr_flags_policy))
2710 return -EINVAL;
2711
2712 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2713 if (flags[flag])
2714 *mntrflags |= (1<<flag);
2715
2716 return 0;
2717}
2718
9bc383de 2719static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2720 struct net_device *netdev, u8 use_4addr,
2721 enum nl80211_iftype iftype)
9bc383de 2722{
ad4bb6f8 2723 if (!use_4addr) {
f350a0a8 2724 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2725 return -EBUSY;
9bc383de 2726 return 0;
ad4bb6f8 2727 }
9bc383de
JB		 2728
2729 switch (iftype) {
2730 case NL80211_IFTYPE_AP_VLAN:
2731 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2732 return 0;
2733 break;
2734 case NL80211_IFTYPE_STATION:
2735 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2736 return 0;
2737 break;
2738 default:
2739 break;
2740 }
2741
2742 return -EOPNOTSUPP;
2743}
2744
55682965
JB		 2745static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2746{
4c476991 2747 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2748 struct vif_params params;
e36d56b6 2749 int err;
04a773ad 2750 enum nl80211_iftype otype, ntype;
4c476991 2751 struct net_device *dev = info->user_ptr[1];
92ffe055 2752 u32 _flags, *flags = NULL;
ac7f9cfa 2753 bool change = false;
55682965 2754
2ec600d6
LCC		 2755 memset(&params, 0, sizeof(params));
2756
04a773ad 2757 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2758
723b038d 2759 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2760 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2761 if (otype != ntype)
ac7f9cfa 2762 change = true;
4c476991
JB		 2763 if (ntype > NL80211_IFTYPE_MAX)
2764 return -EINVAL;
723b038d
JB		 2765 }
2766
92ffe055 2767 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2768 struct wireless_dev *wdev = dev->ieee80211_ptr;
2769
4c476991
JB		 2770 if (ntype != NL80211_IFTYPE_MESH_POINT)
2771 return -EINVAL;
29cbe68c
JB		 2772 if (netif_running(dev))
2773 return -EBUSY;
2774
2775 wdev_lock(wdev);
2776 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2777 IEEE80211_MAX_MESH_ID_LEN);
2778 wdev->mesh_id_up_len =
2779 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2780 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2781 wdev->mesh_id_up_len);
2782 wdev_unlock(wdev);
2ec600d6
LCC		 2783 }
2784
8b787643
FF		 2785 if (info->attrs[NL80211_ATTR_4ADDR]) {
2786 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2787 change = true;
ad4bb6f8 2788 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2789 if (err)
4c476991 2790 return err;
8b787643
FF		 2791 } else {
2792 params.use_4addr = -1;
2793 }
2794
92ffe055 2795 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2796 if (ntype != NL80211_IFTYPE_MONITOR)
2797 return -EINVAL;
92ffe055
JB		 2798 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2799 &_flags);
ac7f9cfa 2800 if (err)
4c476991 2801 return err;
ac7f9cfa
JB		 2802
2803 flags = &_flags;
2804 change = true;
92ffe055 2805 }
3b85875a 2806
c6e6a0c8
AE		 2807 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2808 const u8 *mumimo_groups;
2809 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2810
2811 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2812 return -EOPNOTSUPP;
2813
2814 mumimo_groups =
2815 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2816
2817 /* bits 0 and 63 are reserved and must be zero */
2818 if ((mumimo_groups[0] & BIT(7)) ||
2819 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(0)))
2820 return -EINVAL;
2821
2822 memcpy(params.vht_mumimo_groups, mumimo_groups,
2823 VHT_MUMIMO_GROUPS_DATA_LEN);
2824 change = true;
2825 }
2826
2827 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2828 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2829
2830 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2831 return -EOPNOTSUPP;
2832
2833 nla_memcpy(params.macaddr,
2834 info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR],
2835 ETH_ALEN);
2836 change = true;
2837 }
2838
18003297 2839 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2840 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2841 return -EOPNOTSUPP;
2842
ac7f9cfa 2843 if (change)
3d54d255 2844 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2845 else
2846 err = 0;
60719ffd 2847
9bc383de
JB		 2848 if (!err && params.use_4addr != -1)
2849 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2850
55682965
JB		 2851 return err;
2852}
2853
2854static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2855{
4c476991 2856 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2857 struct vif_params params;
84efbb84 2858 struct wireless_dev *wdev;
896ff063 2859 struct sk_buff *msg;
55682965
JB		 2860 int err;
2861 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2862 u32 flags;
55682965 2863
78f22b6a
JB		 2864 /* to avoid failing a new interface creation due to pending removal */
2865 cfg80211_destroy_ifaces(rdev);
2866
2ec600d6
LCC		 2867 memset(&params, 0, sizeof(params));
2868
55682965
JB		 2869 if (!info->attrs[NL80211_ATTR_IFNAME])
2870 return -EINVAL;
2871
2872 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2873 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2874 if (type > NL80211_IFTYPE_MAX)
2875 return -EINVAL;
2876 }
2877
79c97e97 2878 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2879 !(rdev->wiphy.interface_modes & (1 << type)))
2880 return -EOPNOTSUPP;
55682965 2881
cb3b7d87 2882 if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
e8f479b1
BG		 2883 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2884 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2885 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2886 ETH_ALEN);
2887 if (!is_valid_ether_addr(params.macaddr))
2888 return -EADDRNOTAVAIL;
2889 }
2890
9bc383de 2891 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2892 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2893 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2894 if (err)
4c476991 2895 return err;
9bc383de 2896 }
8b787643 2897
66f7ac50
MW		 2898 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2899 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2900 &flags);
e057d3c3 2901
18003297 2902 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2903 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2904 return -EOPNOTSUPP;
2905
a18c7192
JB		 2906 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2907 if (!msg)
2908 return -ENOMEM;
2909
e35e4d28
HG		 2910 wdev = rdev_add_virtual_intf(rdev,
2911 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2912 NET_NAME_USER, type, err ? NULL : &flags,
2913 &params);
d687cbb7
RM		 2914 if (WARN_ON(!wdev)) {
2915 nlmsg_free(msg);
2916 return -EPROTO;
2917 } else if (IS_ERR(wdev)) {
1c90f9d4 2918 nlmsg_free(msg);
84efbb84 2919 return PTR_ERR(wdev);
1c90f9d4 2920 }
2ec600d6 2921
18e5ca65 2922 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2923 wdev->owner_nlportid = info->snd_portid;
2924
98104fde
JB		 2925 switch (type) {
2926 case NL80211_IFTYPE_MESH_POINT:
2927 if (!info->attrs[NL80211_ATTR_MESH_ID])
2928 break;
29cbe68c
JB		 2929 wdev_lock(wdev);
2930 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2931 IEEE80211_MAX_MESH_ID_LEN);
2932 wdev->mesh_id_up_len =
2933 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2934 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2935 wdev->mesh_id_up_len);
2936 wdev_unlock(wdev);
98104fde 2937 break;
cb3b7d87 2938 case NL80211_IFTYPE_NAN:
98104fde
JB		 2939 case NL80211_IFTYPE_P2P_DEVICE:
2940 /*
cb3b7d87 2941 * P2P Device and NAN do not have a netdev, so don't go
98104fde
JB		 2942 * through the netdev notifier and must be added here
2943 */
2944 mutex_init(&wdev->mtx);
2945 INIT_LIST_HEAD(&wdev->event_list);
2946 spin_lock_init(&wdev->event_lock);
2947 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2948 spin_lock_init(&wdev->mgmt_registrations_lock);
2949
98104fde 2950 wdev->identifier = ++rdev->wdev_id;
53873f13 2951 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
98104fde 2952 rdev->devlist_generation++;
98104fde
JB		 2953 break;
2954 default:
2955 break;
29cbe68c
JB		 2956 }
2957
15e47304 2958 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2959 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2960 nlmsg_free(msg);
2961 return -ENOBUFS;
2962 }
2963
896ff063
DK		 2964 /*
2965 * For wdevs which have no associated netdev object (e.g. of type
2966 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
2967 * For all other types, the event will be generated from the
2968 * netdev notifier
2969 */
2970 if (!wdev->netdev)
2971 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
8f894be2 2972
1c90f9d4 2973 return genlmsg_reply(msg, info);
55682965
JB		 2974}
2975
2976static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2977{
4c476991 2978 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2979 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2980
4c476991
JB		 2981 if (!rdev->ops->del_virtual_intf)
2982 return -EOPNOTSUPP;
55682965 2983
84efbb84
JB		 2984 /*
2985 * If we remove a wireless device without a netdev then clear
2986 * user_ptr[1] so that nl80211_post_doit won't dereference it
2987 * to check if it needs to do dev_put(). Otherwise it crashes
2988 * since the wdev has been freed, unlike with a netdev where
2989 * we need the dev_put() for the netdev to really be freed.
2990 */
2991 if (!wdev->netdev)
2992 info->user_ptr[1] = NULL;
2993
7f8ed01e 2994 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2995}
2996
1d9d9213
SW		 2997static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2998{
2999 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3000 struct net_device *dev = info->user_ptr[1];
3001 u16 noack_map;
3002
3003 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
3004 return -EINVAL;
3005
3006 if (!rdev->ops->set_noack_map)
3007 return -EOPNOTSUPP;
3008
3009 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
3010
e35e4d28 3011 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 3012}
3013
41ade00f
JB		 3014struct get_key_cookie {
3015 struct sk_buff *msg;
3016 int error;
b9454e83 3017 int idx;
41ade00f
JB		 3018};
3019
3020static void get_key_callback(void *c, struct key_params *params)
3021{
b9454e83 3022 struct nlattr *key;
41ade00f
JB		 3023 struct get_key_cookie *cookie = c;
3024
9360ffd1
DM		 3025 if ((params->key &&
3026 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
3027 params->key_len, params->key)) ||
3028 (params->seq &&
3029 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
3030 params->seq_len, params->seq)) ||
3031 (params->cipher &&
3032 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
3033 params->cipher)))
3034 goto nla_put_failure;
41ade00f 3035
b9454e83
JB		 3036 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
3037 if (!key)
3038 goto nla_put_failure;
3039
9360ffd1
DM		 3040 if ((params->key &&
3041 nla_put(cookie->msg, NL80211_KEY_DATA,
3042 params->key_len, params->key)) ||
3043 (params->seq &&
3044 nla_put(cookie->msg, NL80211_KEY_SEQ,
3045 params->seq_len, params->seq)) ||
3046 (params->cipher &&
3047 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
3048 params->cipher)))
3049 goto nla_put_failure;
b9454e83 3050
9360ffd1
DM		 3051 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
3052 goto nla_put_failure;
b9454e83
JB		 3053
3054 nla_nest_end(cookie->msg, key);
3055
41ade00f
JB		 3056 return;
3057 nla_put_failure:
3058 cookie->error = 1;
3059}
3060
3061static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3062{
4c476991 3063 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3064 int err;
4c476991 3065 struct net_device *dev = info->user_ptr[1];
41ade00f 3066 u8 key_idx = 0;
e31b8213
JB		 3067 const u8 *mac_addr = NULL;
3068 bool pairwise;
41ade00f
JB		 3069 struct get_key_cookie cookie = {
3070 .error = 0,
3071 };
3072 void *hdr;
3073 struct sk_buff *msg;
3074
3075 if (info->attrs[NL80211_ATTR_KEY_IDX])
3076 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3077
3cfcf6ac 3078 if (key_idx > 5)
41ade00f
JB		 3079 return -EINVAL;
3080
3081 if (info->attrs[NL80211_ATTR_MAC])
3082 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3083
e31b8213
JB		 3084 pairwise = !!mac_addr;
3085 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3086 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
7a087e74 3087
e31b8213
JB		 3088 if (kt >= NUM_NL80211_KEYTYPES)
3089 return -EINVAL;
3090 if (kt != NL80211_KEYTYPE_GROUP &&
3091 kt != NL80211_KEYTYPE_PAIRWISE)
3092 return -EINVAL;
3093 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3094 }
3095
4c476991
JB		 3096 if (!rdev->ops->get_key)
3097 return -EOPNOTSUPP;
41ade00f 3098
0fa7b391
JB		 3099 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3100 return -ENOENT;
3101
fd2120ca 3102 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3103 if (!msg)
3104 return -ENOMEM;
41ade00f 3105
15e47304 3106 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 3107 NL80211_CMD_NEW_KEY);
cb35fba3 3108 if (!hdr)
9fe271af 3109 goto nla_put_failure;
41ade00f
JB		 3110
3111 cookie.msg = msg;
b9454e83 3112 cookie.idx = key_idx;
41ade00f 3113
9360ffd1
DM		 3114 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3115 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3116 goto nla_put_failure;
3117 if (mac_addr &&
3118 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3119 goto nla_put_failure;
41ade00f 3120
e35e4d28
HG		 3121 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3122 get_key_callback);
41ade00f
JB		 3123
3124 if (err)
6c95e2a2 3125 goto free_msg;
41ade00f
JB		 3126
3127 if (cookie.error)
3128 goto nla_put_failure;
3129
3130 genlmsg_end(msg, hdr);
4c476991 3131 return genlmsg_reply(msg, info);
41ade00f
JB		 3132
3133 nla_put_failure:
3134 err = -ENOBUFS;
6c95e2a2 3135 free_msg:
41ade00f 3136 nlmsg_free(msg);
41ade00f
JB		 3137 return err;
3138}
3139
3140static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3141{
4c476991 3142 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 3143 struct key_parse key;
41ade00f 3144 int err;
4c476991 3145 struct net_device *dev = info->user_ptr[1];
41ade00f 3146
b9454e83
JB		 3147 err = nl80211_parse_key(info, &key);
3148 if (err)
3149 return err;
41ade00f 3150
b9454e83 3151 if (key.idx < 0)
41ade00f
JB		 3152 return -EINVAL;
3153
b9454e83
JB		 3154 /* only support setting default key */
3155 if (!key.def && !key.defmgmt)
41ade00f
JB		 3156 return -EINVAL;
3157
dbd2fd65 3158 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 3159
dbd2fd65
JB		 3160 if (key.def) {
3161 if (!rdev->ops->set_default_key) {
3162 err = -EOPNOTSUPP;
3163 goto out;
3164 }
41ade00f 3165
dbd2fd65
JB		 3166 err = nl80211_key_allowed(dev->ieee80211_ptr);
3167 if (err)
3168 goto out;
3169
e35e4d28 3170 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 3171 key.def_uni, key.def_multi);
3172
3173 if (err)
3174 goto out;
fffd0934 3175
3d23e349 3176#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 3177 dev->ieee80211_ptr->wext.default_key = key.idx;
3178#endif
3179 } else {
3180 if (key.def_uni || !key.def_multi) {
3181 err = -EINVAL;
3182 goto out;
3183 }
3184
3185 if (!rdev->ops->set_default_mgmt_key) {
3186 err = -EOPNOTSUPP;
3187 goto out;
3188 }
3189
3190 err = nl80211_key_allowed(dev->ieee80211_ptr);
3191 if (err)
3192 goto out;
3193
e35e4d28 3194 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 3195 if (err)
3196 goto out;
3197
3198#ifdef CONFIG_CFG80211_WEXT
3199 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3200#endif
dbd2fd65
JB		 3201 }
3202
3203 out:
fffd0934 3204 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3205
41ade00f
JB		 3206 return err;
3207}
3208
3209static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3210{
4c476991 3211 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3212 int err;
4c476991 3213 struct net_device *dev = info->user_ptr[1];
b9454e83 3214 struct key_parse key;
e31b8213 3215 const u8 *mac_addr = NULL;
41ade00f 3216
b9454e83
JB		 3217 err = nl80211_parse_key(info, &key);
3218 if (err)
3219 return err;
41ade00f 3220
b9454e83 3221 if (!key.p.key)
41ade00f
JB		 3222 return -EINVAL;
3223
41ade00f
JB		 3224 if (info->attrs[NL80211_ATTR_MAC])
3225 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3226
e31b8213
JB		 3227 if (key.type == -1) {
3228 if (mac_addr)
3229 key.type = NL80211_KEYTYPE_PAIRWISE;
3230 else
3231 key.type = NL80211_KEYTYPE_GROUP;
3232 }
3233
3234 /* for now */
3235 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3236 key.type != NL80211_KEYTYPE_GROUP)
3237 return -EINVAL;
3238
4c476991
JB		 3239 if (!rdev->ops->add_key)
3240 return -EOPNOTSUPP;
25e47c18 3241
e31b8213
JB		 3242 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3243 key.type == NL80211_KEYTYPE_PAIRWISE,
3244 mac_addr))
4c476991 3245 return -EINVAL;
41ade00f 3246
fffd0934
JB		 3247 wdev_lock(dev->ieee80211_ptr);
3248 err = nl80211_key_allowed(dev->ieee80211_ptr);
3249 if (!err)
e35e4d28
HG		 3250 err = rdev_add_key(rdev, dev, key.idx,
3251 key.type == NL80211_KEYTYPE_PAIRWISE,
3252 mac_addr, &key.p);
fffd0934 3253 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3254
41ade00f
JB		 3255 return err;
3256}
3257
3258static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3259{
4c476991 3260 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3261 int err;
4c476991 3262 struct net_device *dev = info->user_ptr[1];
41ade00f 3263 u8 *mac_addr = NULL;
b9454e83 3264 struct key_parse key;
41ade00f 3265
b9454e83
JB		 3266 err = nl80211_parse_key(info, &key);
3267 if (err)
3268 return err;
41ade00f
JB		 3269
3270 if (info->attrs[NL80211_ATTR_MAC])
3271 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3272
e31b8213
JB		 3273 if (key.type == -1) {
3274 if (mac_addr)
3275 key.type = NL80211_KEYTYPE_PAIRWISE;
3276 else
3277 key.type = NL80211_KEYTYPE_GROUP;
3278 }
3279
3280 /* for now */
3281 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3282 key.type != NL80211_KEYTYPE_GROUP)
3283 return -EINVAL;
3284
4c476991
JB		 3285 if (!rdev->ops->del_key)
3286 return -EOPNOTSUPP;
41ade00f 3287
fffd0934
JB		 3288 wdev_lock(dev->ieee80211_ptr);
3289 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3290
0fa7b391 3291 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3292 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3293 err = -ENOENT;
3294
fffd0934 3295 if (!err)
e35e4d28
HG		 3296 err = rdev_del_key(rdev, dev, key.idx,
3297 key.type == NL80211_KEYTYPE_PAIRWISE,
3298 mac_addr);
41ade00f 3299
3d23e349 3300#ifdef CONFIG_CFG80211_WEXT
08645126 3301 if (!err) {
b9454e83 3302 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3303 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3304 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3305 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3306 }
3307#endif
fffd0934 3308 wdev_unlock(dev->ieee80211_ptr);
08645126 3309
41ade00f
JB		 3310 return err;
3311}
3312
77765eaf
VT		 3313/* This function returns an error or the number of nested attributes */
3314static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3315{
3316 struct nlattr *attr;
3317 int n_entries = 0, tmp;
3318
3319 nla_for_each_nested(attr, nl_attr, tmp) {
3320 if (nla_len(attr) != ETH_ALEN)
3321 return -EINVAL;
3322
3323 n_entries++;
3324 }
3325
3326 return n_entries;
3327}
3328
3329/*
3330 * This function parses ACL information and allocates memory for ACL data.
3331 * On successful return, the calling function is responsible to free the
3332 * ACL buffer returned by this function.
3333 */
3334static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3335 struct genl_info *info)
3336{
3337 enum nl80211_acl_policy acl_policy;
3338 struct nlattr *attr;
3339 struct cfg80211_acl_data *acl;
3340 int i = 0, n_entries, tmp;
3341
3342 if (!wiphy->max_acl_mac_addrs)
3343 return ERR_PTR(-EOPNOTSUPP);
3344
3345 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3346 return ERR_PTR(-EINVAL);
3347
3348 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3349 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3350 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3351 return ERR_PTR(-EINVAL);
3352
3353 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3354 return ERR_PTR(-EINVAL);
3355
3356 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3357 if (n_entries < 0)
3358 return ERR_PTR(n_entries);
3359
3360 if (n_entries > wiphy->max_acl_mac_addrs)
3361 return ERR_PTR(-ENOTSUPP);
3362
3363 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3364 GFP_KERNEL);
3365 if (!acl)
3366 return ERR_PTR(-ENOMEM);
3367
3368 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3369 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3370 i++;
3371 }
3372
3373 acl->n_acl_entries = n_entries;
3374 acl->acl_policy = acl_policy;
3375
3376 return acl;
3377}
3378
3379static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3380{
3381 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3382 struct net_device *dev = info->user_ptr[1];
3383 struct cfg80211_acl_data *acl;
3384 int err;
3385
3386 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3387 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3388 return -EOPNOTSUPP;
3389
3390 if (!dev->ieee80211_ptr->beacon_interval)
3391 return -EINVAL;
3392
3393 acl = parse_acl_data(&rdev->wiphy, info);
3394 if (IS_ERR(acl))
3395 return PTR_ERR(acl);
3396
3397 err = rdev_set_mac_acl(rdev, dev, acl);
3398
3399 kfree(acl);
3400
3401 return err;
3402}
3403
a7c7fbff
PK		 3404static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
3405 u8 *rates, u8 rates_len)
3406{
3407 u8 i;
3408 u32 mask = 0;
3409
3410 for (i = 0; i < rates_len; i++) {
3411 int rate = (rates[i] & 0x7f) * 5;
3412 int ridx;
3413
3414 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
3415 struct ieee80211_rate *srate =
3416 &sband->bitrates[ridx];
3417 if (rate == srate->bitrate) {
3418 mask |= 1 << ridx;
3419 break;
3420 }
3421 }
3422 if (ridx == sband->n_bitrates)
3423 return 0; /* rate not found */
3424 }
3425
3426 return mask;
3427}
3428
3429static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
3430 u8 *rates, u8 rates_len,
3431 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
3432{
3433 u8 i;
3434
3435 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
3436
3437 for (i = 0; i < rates_len; i++) {
3438 int ridx, rbit;
3439
3440 ridx = rates[i] / 8;
3441 rbit = BIT(rates[i] % 8);
3442
3443 /* check validity */
3444 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
3445 return false;
3446
3447 /* check availability */
3448 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
3449 mcs[ridx] |= rbit;
3450 else
3451 return false;
3452 }
3453
3454 return true;
3455}
3456
3457static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
3458{
3459 u16 mcs_mask = 0;
3460
3461 switch (vht_mcs_map) {
3462 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
3463 break;
3464 case IEEE80211_VHT_MCS_SUPPORT_0_7:
3465 mcs_mask = 0x00FF;
3466 break;
3467 case IEEE80211_VHT_MCS_SUPPORT_0_8:
3468 mcs_mask = 0x01FF;
3469 break;
3470 case IEEE80211_VHT_MCS_SUPPORT_0_9:
3471 mcs_mask = 0x03FF;
3472 break;
3473 default:
3474 break;
3475 }
3476
3477 return mcs_mask;
3478}
3479
3480static void vht_build_mcs_mask(u16 vht_mcs_map,
3481 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
3482{
3483 u8 nss;
3484
3485 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
3486 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
3487 vht_mcs_map >>= 2;
3488 }
3489}
3490
3491static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
3492 struct nl80211_txrate_vht *txrate,
3493 u16 mcs[NL80211_VHT_NSS_MAX])
3494{
3495 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3496 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
3497 u8 i;
3498
3499 if (!sband->vht_cap.vht_supported)
3500 return false;
3501
3502 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
3503
3504 /* Build vht_mcs_mask from VHT capabilities */
3505 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
3506
3507 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3508 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
3509 mcs[i] = txrate->mcs[i];
3510 else
3511 return false;
3512 }
3513
3514 return true;
3515}
3516
3517static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
3518 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
3519 .len = NL80211_MAX_SUPP_RATES },
3520 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
3521 .len = NL80211_MAX_SUPP_HT_RATES },
3522 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
3523 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
3524};
3525
3526static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
3527 struct cfg80211_bitrate_mask *mask)
3528{
3529 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
3530 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3531 int rem, i;
3532 struct nlattr *tx_rates;
3533 struct ieee80211_supported_band *sband;
3534 u16 vht_tx_mcs_map;
3535
3536 memset(mask, 0, sizeof(*mask));
3537 /* Default to all rates enabled */
3538 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3539 sband = rdev->wiphy.bands[i];
3540
3541 if (!sband)
3542 continue;
3543
3544 mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
3545 memcpy(mask->control[i].ht_mcs,
3546 sband->ht_cap.mcs.rx_mask,
3547 sizeof(mask->control[i].ht_mcs));
3548
3549 if (!sband->vht_cap.vht_supported)
3550 continue;
3551
3552 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3553 vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
3554 }
3555
3556 /* if no rates are given set it back to the defaults */
3557 if (!info->attrs[NL80211_ATTR_TX_RATES])
3558 goto out;
3559
3560 /* The nested attribute uses enum nl80211_band as the index. This maps
3561 * directly to the enum nl80211_band values used in cfg80211.
3562 */
3563 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
3564 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
3565 enum nl80211_band band = nla_type(tx_rates);
3566 int err;
3567
3568 if (band < 0 || band >= NUM_NL80211_BANDS)
3569 return -EINVAL;
3570 sband = rdev->wiphy.bands[band];
3571 if (sband == NULL)
3572 return -EINVAL;
bfe2c7b1
JB		 3573 err = nla_parse_nested(tb, NL80211_TXRATE_MAX, tx_rates,
3574 nl80211_txattr_policy);
a7c7fbff
PK		 3575 if (err)
3576 return err;
3577 if (tb[NL80211_TXRATE_LEGACY]) {
3578 mask->control[band].legacy = rateset_to_mask(
3579 sband,
3580 nla_data(tb[NL80211_TXRATE_LEGACY]),
3581 nla_len(tb[NL80211_TXRATE_LEGACY]));
3582 if ((mask->control[band].legacy == 0) &&
3583 nla_len(tb[NL80211_TXRATE_LEGACY]))
3584 return -EINVAL;
3585 }
3586 if (tb[NL80211_TXRATE_HT]) {
3587 if (!ht_rateset_to_mask(
3588 sband,
3589 nla_data(tb[NL80211_TXRATE_HT]),
3590 nla_len(tb[NL80211_TXRATE_HT]),
3591 mask->control[band].ht_mcs))
3592 return -EINVAL;
3593 }
3594 if (tb[NL80211_TXRATE_VHT]) {
3595 if (!vht_set_mcs_mask(
3596 sband,
3597 nla_data(tb[NL80211_TXRATE_VHT]),
3598 mask->control[band].vht_mcs))
3599 return -EINVAL;
3600 }
3601 if (tb[NL80211_TXRATE_GI]) {
3602 mask->control[band].gi =
3603 nla_get_u8(tb[NL80211_TXRATE_GI]);
3604 if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
3605 return -EINVAL;
3606 }
3607
3608 if (mask->control[band].legacy == 0) {
3609 /* don't allow empty legacy rates if HT or VHT
3610 * are not even supported.
3611 */
3612 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
3613 rdev->wiphy.bands[band]->vht_cap.vht_supported))
3614 return -EINVAL;
3615
3616 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
3617 if (mask->control[band].ht_mcs[i])
3618 goto out;
3619
3620 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
3621 if (mask->control[band].vht_mcs[i])
3622 goto out;
3623
3624 /* legacy and mcs rates may not be both empty */
3625 return -EINVAL;
3626 }
3627 }
3628
3629out:
3630 return 0;
3631}
3632
8564e382
JB		 3633static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
3634 enum nl80211_band band,
3635 struct cfg80211_bitrate_mask *beacon_rate)
a7c7fbff 3636{
8564e382
JB		 3637 u32 count_ht, count_vht, i;
3638 u32 rate = beacon_rate->control[band].legacy;
a7c7fbff
PK		 3639
3640 /* Allow only one rate */
3641 if (hweight32(rate) > 1)
3642 return -EINVAL;
3643
3644 count_ht = 0;
3645 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
8564e382 3646 if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
a7c7fbff 3647 return -EINVAL;
8564e382 3648 } else if (beacon_rate->control[band].ht_mcs[i]) {
a7c7fbff
PK		 3649 count_ht++;
3650 if (count_ht > 1)
3651 return -EINVAL;
3652 }
3653 if (count_ht && rate)
3654 return -EINVAL;
3655 }
3656
3657 count_vht = 0;
3658 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8564e382 3659 if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
a7c7fbff 3660 return -EINVAL;
8564e382 3661 } else if (beacon_rate->control[band].vht_mcs[i]) {
a7c7fbff
PK		 3662 count_vht++;
3663 if (count_vht > 1)
3664 return -EINVAL;
3665 }
3666 if (count_vht && rate)
3667 return -EINVAL;
3668 }
3669
3670 if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
3671 return -EINVAL;
3672
8564e382
JB		 3673 if (rate &&
3674 !wiphy_ext_feature_isset(&rdev->wiphy,
3675 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
3676 return -EINVAL;
3677 if (count_ht &&
3678 !wiphy_ext_feature_isset(&rdev->wiphy,
3679 NL80211_EXT_FEATURE_BEACON_RATE_HT))
3680 return -EINVAL;
3681 if (count_vht &&
3682 !wiphy_ext_feature_isset(&rdev->wiphy,
3683 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
3684 return -EINVAL;
3685
a7c7fbff
PK		 3686 return 0;
3687}
3688
a1193be8 3689static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3690 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3691{
8860020e 3692 bool haveinfo = false;
ed1b6cc7 3693
a1193be8
SW		 3694 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3695 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3696 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3697 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3698 return -EINVAL;
3699
8860020e 3700 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3701
a1193be8
SW		 3702 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3703 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3704 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3705 if (!bcn->head_len)
3706 return -EINVAL;
3707 haveinfo = true;
ed1b6cc7
JB		 3708 }
3709
a1193be8
SW		 3710 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3711 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3712 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3713 haveinfo = true;
ed1b6cc7
JB		 3714 }
3715
4c476991
JB		 3716 if (!haveinfo)
3717 return -EINVAL;
3b85875a 3718
a1193be8
SW		 3719 if (attrs[NL80211_ATTR_IE]) {
3720 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3721 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3722 }
3723
a1193be8 3724 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3725 bcn->proberesp_ies =
a1193be8 3726 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3727 bcn->proberesp_ies_len =
a1193be8 3728 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3729 }
3730
a1193be8 3731 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3732 bcn->assocresp_ies =
a1193be8 3733 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3734 bcn->assocresp_ies_len =
a1193be8 3735 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3736 }
3737
a1193be8
SW		 3738 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3739 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3740 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3741 }
3742
8860020e
JB		 3743 return 0;
3744}
3745
66cd794e
JB		 3746static void nl80211_check_ap_rate_selectors(struct cfg80211_ap_settings *params,
3747 const u8 *rates)
3748{
3749 int i;
3750
3751 if (!rates)
3752 return;
3753
3754 for (i = 0; i < rates[1]; i++) {
3755 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_HT_PHY)
3756 params->ht_required = true;
3757 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_VHT_PHY)
3758 params->vht_required = true;
3759 }
3760}
3761
3762/*
3763 * Since the nl80211 API didn't include, from the beginning, attributes about
3764 * HT/VHT requirements/capabilities, we parse them out of the IEs for the
3765 * benefit of drivers that rebuild IEs in the firmware.
3766 */
3767static void nl80211_calculate_ap_params(struct cfg80211_ap_settings *params)
3768{
3769 const struct cfg80211_beacon_data *bcn = &params->beacon;
3770 size_t ies_len = bcn->beacon_ies_len;
3771 const u8 *ies = bcn->beacon_ies;
3772 const u8 *rates;
3773 const u8 *cap;
3774
3775 rates = cfg80211_find_ie(WLAN_EID_SUPP_RATES, ies, ies_len);
3776 nl80211_check_ap_rate_selectors(params, rates);
3777
3778 rates = cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES, ies, ies_len);
3779 nl80211_check_ap_rate_selectors(params, rates);
3780
3781 cap = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, ies_len);
3782 if (cap && cap[1] >= sizeof(*params->ht_cap))
3783 params->ht_cap = (void *)(cap + 2);
3784 cap = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, ies, ies_len);
3785 if (cap && cap[1] >= sizeof(*params->vht_cap))
3786 params->vht_cap = (void *)(cap + 2);
3787}
3788
46c1dd0c
FF		 3789static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3790 struct cfg80211_ap_settings *params)
3791{
3792 struct wireless_dev *wdev;
3793 bool ret = false;
3794
53873f13 3795 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
46c1dd0c
FF		 3796 if (wdev->iftype != NL80211_IFTYPE_AP &&
3797 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3798 continue;
3799
683b6d3b 3800 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3801 continue;
3802
683b6d3b 3803 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3804 ret = true;
3805 break;
3806 }
3807
46c1dd0c
FF		 3808 return ret;
3809}
3810
e39e5b5e
JM		 3811static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3812 enum nl80211_auth_type auth_type,
3813 enum nl80211_commands cmd)
3814{
3815 if (auth_type > NL80211_AUTHTYPE_MAX)
3816 return false;
3817
3818 switch (cmd) {
3819 case NL80211_CMD_AUTHENTICATE:
3820 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3821 auth_type == NL80211_AUTHTYPE_SAE)
3822 return false;
63181060
JM		 3823 if (!wiphy_ext_feature_isset(&rdev->wiphy,
3824 NL80211_EXT_FEATURE_FILS_STA) &&
3825 (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3826 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3827 auth_type == NL80211_AUTHTYPE_FILS_PK))
3828 return false;
e39e5b5e
JM		 3829 return true;
3830 case NL80211_CMD_CONNECT:
3831 case NL80211_CMD_START_AP:
3832 /* SAE not supported yet */
3833 if (auth_type == NL80211_AUTHTYPE_SAE)
3834 return false;
63181060
JM		 3835 /* FILS not supported yet */
3836 if (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3837 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3838 auth_type == NL80211_AUTHTYPE_FILS_PK)
3839 return false;
e39e5b5e
JM		 3840 return true;
3841 default:
3842 return false;
3843 }
3844}
3845
8860020e
JB		 3846static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3847{
3848 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3849 struct net_device *dev = info->user_ptr[1];
3850 struct wireless_dev *wdev = dev->ieee80211_ptr;
3851 struct cfg80211_ap_settings params;
3852 int err;
3853
3854 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3855 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3856 return -EOPNOTSUPP;
3857
3858 if (!rdev->ops->start_ap)
3859 return -EOPNOTSUPP;
3860
3861 if (wdev->beacon_interval)
3862 return -EALREADY;
3863
3864 memset(&params, 0, sizeof(params));
3865
3866 /* these are required for START_AP */
3867 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3868 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3869 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3870 return -EINVAL;
3871
a1193be8 3872 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3873 if (err)
3874 return err;
3875
3876 params.beacon_interval =
3877 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3878 params.dtim_period =
3879 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3880
0c317a02
PK		 3881 err = cfg80211_validate_beacon_int(rdev, dev->ieee80211_ptr->iftype,
3882 params.beacon_interval);
8860020e
JB		 3883 if (err)
3884 return err;
3885
3886 /*
3887 * In theory, some of these attributes should be required here
3888 * but since they were not used when the command was originally
3889 * added, keep them optional for old user space programs to let
3890 * them continue to work with drivers that do not need the
3891 * additional information -- drivers must check!
3892 */
3893 if (info->attrs[NL80211_ATTR_SSID]) {
3894 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3895 params.ssid_len =
3896 nla_len(info->attrs[NL80211_ATTR_SSID]);
3897 if (params.ssid_len == 0 ||
3898 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3899 return -EINVAL;
3900 }
3901
3902 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3903 params.hidden_ssid = nla_get_u32(
3904 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3905 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3906 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3907 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3908 return -EINVAL;
3909 }
3910
3911 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3912
3913 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3914 params.auth_type = nla_get_u32(
3915 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3916 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3917 NL80211_CMD_START_AP))
8860020e
JB		 3918 return -EINVAL;
3919 } else
3920 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3921
3922 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3923 NL80211_MAX_NR_CIPHER_SUITES);
3924 if (err)
3925 return err;
3926
1b658f11
VT		 3927 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3928 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3929 return -EOPNOTSUPP;
3930 params.inactivity_timeout = nla_get_u16(
3931 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3932 }
3933
53cabad7
JB		 3934 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3935 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3936 return -EINVAL;
3937 params.p2p_ctwindow =
3938 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3939 if (params.p2p_ctwindow > 127)
3940 return -EINVAL;
3941 if (params.p2p_ctwindow != 0 &&
3942 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3943 return -EINVAL;
3944 }
3945
3946 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3947 u8 tmp;
3948
3949 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3950 return -EINVAL;
3951 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3952 if (tmp > 1)
3953 return -EINVAL;
3954 params.p2p_opp_ps = tmp;
3955 if (params.p2p_opp_ps != 0 &&
3956 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3957 return -EINVAL;
3958 }
3959
aa430da4 3960 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3961 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3962 if (err)
3963 return err;
3964 } else if (wdev->preset_chandef.chan) {
3965 params.chandef = wdev->preset_chandef;
46c1dd0c 3966 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3967 return -EINVAL;
3968
923b352f
AN		 3969 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3970 wdev->iftype))
aa430da4
JB		 3971 return -EINVAL;
3972
a7c7fbff
PK		 3973 if (info->attrs[NL80211_ATTR_TX_RATES]) {
3974 err = nl80211_parse_tx_bitrate_mask(info, &params.beacon_rate);
3975 if (err)
3976 return err;
3977
8564e382
JB		 3978 err = validate_beacon_tx_rate(rdev, params.chandef.chan->band,
3979 &params.beacon_rate);
a7c7fbff
PK		 3980 if (err)
3981 return err;
3982 }
3983
18998c38
EP		 3984 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3985 params.smps_mode =
3986 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3987 switch (params.smps_mode) {
3988 case NL80211_SMPS_OFF:
3989 break;
3990 case NL80211_SMPS_STATIC:
3991 if (!(rdev->wiphy.features &
3992 NL80211_FEATURE_STATIC_SMPS))
3993 return -EINVAL;
3994 break;
3995 case NL80211_SMPS_DYNAMIC:
3996 if (!(rdev->wiphy.features &
3997 NL80211_FEATURE_DYNAMIC_SMPS))
3998 return -EINVAL;
3999 break;
4000 default:
4001 return -EINVAL;
4002 }
4003 } else {
4004 params.smps_mode = NL80211_SMPS_OFF;
4005 }
4006
6e8ef842
PK		 4007 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
4008 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
4009 return -EOPNOTSUPP;
4010
4baf6bea
OO		 4011 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
4012 params.acl = parse_acl_data(&rdev->wiphy, info);
4013 if (IS_ERR(params.acl))
4014 return PTR_ERR(params.acl);
4015 }
4016
66cd794e
JB		 4017 nl80211_calculate_ap_params(&params);
4018
c56589ed 4019 wdev_lock(wdev);
e35e4d28 4020 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 4021 if (!err) {
683b6d3b 4022 wdev->preset_chandef = params.chandef;
8860020e 4023 wdev->beacon_interval = params.beacon_interval;
9e0e2961 4024 wdev->chandef = params.chandef;
06e191e2
AQ		 4025 wdev->ssid_len = params.ssid_len;
4026 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 4027 }
c56589ed 4028 wdev_unlock(wdev);
77765eaf
VT		 4029
4030 kfree(params.acl);
4031
56d1893d 4032 return err;
ed1b6cc7
JB		 4033}
4034
8860020e
JB		 4035static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
4036{
4037 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4038 struct net_device *dev = info->user_ptr[1];
4039 struct wireless_dev *wdev = dev->ieee80211_ptr;
4040 struct cfg80211_beacon_data params;
4041 int err;
4042
4043 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4044 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4045 return -EOPNOTSUPP;
4046
4047 if (!rdev->ops->change_beacon)
4048 return -EOPNOTSUPP;
4049
4050 if (!wdev->beacon_interval)
4051 return -EINVAL;
4052
a1193be8 4053 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 4054 if (err)
4055 return err;
4056
c56589ed
SW		 4057 wdev_lock(wdev);
4058 err = rdev_change_beacon(rdev, dev, &params);
4059 wdev_unlock(wdev);
4060
4061 return err;
8860020e
JB		 4062}
4063
4064static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 4065{
4c476991
JB		 4066 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4067 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 4068
7c8d5e03 4069 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 4070}
4071
5727ef1b
JB		 4072static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
4073 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
4074 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
4075 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 4076 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 4077 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 4078 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 4079};
4080
eccb8e8f 4081static int parse_station_flags(struct genl_info *info,
bdd3ae3d 4082 enum nl80211_iftype iftype,
eccb8e8f 4083 struct station_parameters *params)
5727ef1b
JB		 4084{
4085 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 4086 struct nlattr *nla;
5727ef1b
JB		 4087 int flag;
4088
eccb8e8f
JB		 4089 /*
4090 * Try parsing the new attribute first so userspace
4091 * can specify both for older kernels.
4092 */
4093 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
4094 if (nla) {
4095 struct nl80211_sta_flag_update *sta_flags;
4096
4097 sta_flags = nla_data(nla);
4098 params->sta_flags_mask = sta_flags->mask;
4099 params->sta_flags_set = sta_flags->set;
77ee7c89 4100 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 4101 if ((params->sta_flags_mask |
4102 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
4103 return -EINVAL;
4104 return 0;
4105 }
4106
4107 /* if present, parse the old attribute */
5727ef1b 4108
eccb8e8f 4109 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 4110 if (!nla)
4111 return 0;
4112
4113 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
4114 nla, sta_flags_policy))
4115 return -EINVAL;
4116
bdd3ae3d
JB		 4117 /*
4118 * Only allow certain flags for interface types so that
4119 * other attributes are silently ignored. Remember that
4120 * this is backward compatibility code with old userspace
4121 * and shouldn't be hit in other cases anyway.
4122 */
4123 switch (iftype) {
4124 case NL80211_IFTYPE_AP:
4125 case NL80211_IFTYPE_AP_VLAN:
4126 case NL80211_IFTYPE_P2P_GO:
4127 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4128 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4129 BIT(NL80211_STA_FLAG_WME) |
4130 BIT(NL80211_STA_FLAG_MFP);
4131 break;
4132 case NL80211_IFTYPE_P2P_CLIENT:
4133 case NL80211_IFTYPE_STATION:
4134 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4135 BIT(NL80211_STA_FLAG_TDLS_PEER);
4136 break;
4137 case NL80211_IFTYPE_MESH_POINT:
4138 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4139 BIT(NL80211_STA_FLAG_MFP) |
4140 BIT(NL80211_STA_FLAG_AUTHORIZED);
4141 default:
4142 return -EINVAL;
4143 }
5727ef1b 4144
3383b5a6
JB		 4145 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
4146 if (flags[flag]) {
eccb8e8f 4147 params->sta_flags_set |= (1<<flag);
5727ef1b 4148
3383b5a6
JB		 4149 /* no longer support new API additions in old API */
4150 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
4151 return -EINVAL;
4152 }
4153 }
4154
5727ef1b
JB		 4155 return 0;
4156}
4157
c8dcfd8a
FF		 4158static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
4159 int attr)
4160{
4161 struct nlattr *rate;
8eb41c8d
VK		 4162 u32 bitrate;
4163 u16 bitrate_compat;
b51f3bee 4164 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 4165
4166 rate = nla_nest_start(msg, attr);
4167 if (!rate)
db9c64cf 4168 return false;
c8dcfd8a
FF		 4169
4170 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
4171 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 4172 /* report 16-bit bitrate only if we can */
4173 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 4174 if (bitrate > 0 &&
4175 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
4176 return false;
4177 if (bitrate_compat > 0 &&
4178 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
4179 return false;
4180
b51f3bee
JB		 4181 switch (info->bw) {
4182 case RATE_INFO_BW_5:
4183 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
4184 break;
4185 case RATE_INFO_BW_10:
4186 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
4187 break;
4188 default:
4189 WARN_ON(1);
4190 /* fall through */
4191 case RATE_INFO_BW_20:
4192 rate_flg = 0;
4193 break;
4194 case RATE_INFO_BW_40:
4195 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
4196 break;
4197 case RATE_INFO_BW_80:
4198 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
4199 break;
4200 case RATE_INFO_BW_160:
4201 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
4202 break;
4203 }
4204
4205 if (rate_flg && nla_put_flag(msg, rate_flg))
4206 return false;
4207
db9c64cf
JB		 4208 if (info->flags & RATE_INFO_FLAGS_MCS) {
4209 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
4210 return false;
db9c64cf
JB		 4211 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4212 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4213 return false;
4214 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
4215 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
4216 return false;
4217 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
4218 return false;
db9c64cf
JB		 4219 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4220 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4221 return false;
4222 }
c8dcfd8a
FF		 4223
4224 nla_nest_end(msg, rate);
4225 return true;
c8dcfd8a
FF		 4226}
4227
119363c7
FF		 4228static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
4229 int id)
4230{
4231 void *attr;
4232 int i = 0;
4233
4234 if (!mask)
4235 return true;
4236
4237 attr = nla_nest_start(msg, id);
4238 if (!attr)
4239 return false;
4240
4241 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
4242 if (!(mask & BIT(i)))
4243 continue;
4244
4245 if (nla_put_u8(msg, i, signal[i]))
4246 return false;
4247 }
4248
4249 nla_nest_end(msg, attr);
4250
4251 return true;
4252}
4253
cf5ead82
JB		 4254static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
4255 u32 seq, int flags,
66266b3a
JL		 4256 struct cfg80211_registered_device *rdev,
4257 struct net_device *dev,
98b62183 4258 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 4259{
4260 void *hdr;
f4263c98 4261 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 4262
cf5ead82 4263 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 4264 if (!hdr)
4265 return -1;
4266
9360ffd1
DM		 4267 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4268 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
4269 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
4270 goto nla_put_failure;
f5ea9120 4271
2ec600d6
LCC		 4272 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
4273 if (!sinfoattr)
fd5b74dc 4274 goto nla_put_failure;
319090bf
JB		 4275
4276#define PUT_SINFO(attr, memb, type) do { \
d686b920 4277 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
739960f1 4278 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
319090bf
JB		 4279 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
4280 sinfo->memb)) \
4281 goto nla_put_failure; \
4282 } while (0)
d686b920
JB		 4283#define PUT_SINFO_U64(attr, memb) do { \
4284 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4285 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
4286 sinfo->memb, NL80211_STA_INFO_PAD)) \
4287 goto nla_put_failure; \
4288 } while (0)
319090bf
JB		 4289
4290 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
4291 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
4292
4293 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
4294 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 4295 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 4296 (u32)sinfo->rx_bytes))
9360ffd1 4297 goto nla_put_failure;
319090bf
JB		 4298
4299 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
4300 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 4301 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 4302 (u32)sinfo->tx_bytes))
4303 goto nla_put_failure;
319090bf 4304
d686b920
JB		 4305 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
4306 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
319090bf
JB		 4307 PUT_SINFO(LLID, llid, u16);
4308 PUT_SINFO(PLID, plid, u16);
4309 PUT_SINFO(PLINK_STATE, plink_state, u8);
d686b920 4310 PUT_SINFO_U64(RX_DURATION, rx_duration);
319090bf 4311
66266b3a
JL		 4312 switch (rdev->wiphy.signal_type) {
4313 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 4314 PUT_SINFO(SIGNAL, signal, u8);
4315 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 4316 break;
4317 default:
4318 break;
4319 }
319090bf 4320 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 4321 if (!nl80211_put_signal(msg, sinfo->chains,
4322 sinfo->chain_signal,
4323 NL80211_STA_INFO_CHAIN_SIGNAL))
4324 goto nla_put_failure;
4325 }
319090bf 4326 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 4327 if (!nl80211_put_signal(msg, sinfo->chains,
4328 sinfo->chain_signal_avg,
4329 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
4330 goto nla_put_failure;
4331 }
319090bf 4332 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 4333 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
4334 NL80211_STA_INFO_TX_BITRATE))
4335 goto nla_put_failure;
4336 }
319090bf 4337 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 4338 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
4339 NL80211_STA_INFO_RX_BITRATE))
420e7fab 4340 goto nla_put_failure;
420e7fab 4341 }
319090bf
JB		 4342
4343 PUT_SINFO(RX_PACKETS, rx_packets, u32);
4344 PUT_SINFO(TX_PACKETS, tx_packets, u32);
4345 PUT_SINFO(TX_RETRIES, tx_retries, u32);
4346 PUT_SINFO(TX_FAILED, tx_failed, u32);
4347 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
4348 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
4349 PUT_SINFO(LOCAL_PM, local_pm, u32);
4350 PUT_SINFO(PEER_PM, peer_pm, u32);
4351 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
4352
4353 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 4354 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
4355 if (!bss_param)
4356 goto nla_put_failure;
4357
9360ffd1
DM		 4358 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
4359 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
4360 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
4361 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
4362 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
4363 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
4364 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
4365 sinfo->bss_param.dtim_period) ||
4366 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
4367 sinfo->bss_param.beacon_interval))
4368 goto nla_put_failure;
f4263c98
PS		 4369
4370 nla_nest_end(msg, bss_param);
4371 }
319090bf 4372 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 4373 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
4374 sizeof(struct nl80211_sta_flag_update),
4375 &sinfo->sta_flags))
4376 goto nla_put_failure;
319090bf 4377
d686b920
JB		 4378 PUT_SINFO_U64(T_OFFSET, t_offset);
4379 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
4380 PUT_SINFO_U64(BEACON_RX, rx_beacon);
a76b1942 4381 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 4382
4383#undef PUT_SINFO
d686b920 4384#undef PUT_SINFO_U64
6de39808
JB		 4385
4386 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
4387 struct nlattr *tidsattr;
4388 int tid;
4389
4390 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
4391 if (!tidsattr)
4392 goto nla_put_failure;
4393
4394 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
4395 struct cfg80211_tid_stats *tidstats;
4396 struct nlattr *tidattr;
4397
4398 tidstats = &sinfo->pertid[tid];
4399
4400 if (!tidstats->filled)
4401 continue;
4402
4403 tidattr = nla_nest_start(msg, tid + 1);
4404 if (!tidattr)
4405 goto nla_put_failure;
4406
d686b920 4407#define PUT_TIDVAL_U64(attr, memb) do { \
6de39808 4408 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
d686b920
JB		 4409 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
4410 tidstats->memb, NL80211_TID_STATS_PAD)) \
6de39808
JB		 4411 goto nla_put_failure; \
4412 } while (0)
4413
d686b920
JB		 4414 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4415 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4416 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4417 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
6de39808 4418
d686b920 4419#undef PUT_TIDVAL_U64
6de39808
JB		 4420 nla_nest_end(msg, tidattr);
4421 }
4422
4423 nla_nest_end(msg, tidsattr);
4424 }
4425
2ec600d6 4426 nla_nest_end(msg, sinfoattr);
fd5b74dc 4427
319090bf 4428 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 4429 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4430 sinfo->assoc_req_ies))
4431 goto nla_put_failure;
50d3dfb7 4432
053c095a
JB		 4433 genlmsg_end(msg, hdr);
4434 return 0;
fd5b74dc
JB		 4435
4436 nla_put_failure:
bc3ed28c
TG		 4437 genlmsg_cancel(msg, hdr);
4438 return -EMSGSIZE;
fd5b74dc
JB		 4439}
4440
2ec600d6 4441static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 4442 struct netlink_callback *cb)
2ec600d6 4443{
2ec600d6 4444 struct station_info sinfo;
1b8ec87a 4445 struct cfg80211_registered_device *rdev;
97990a06 4446 struct wireless_dev *wdev;
2ec600d6 4447 u8 mac_addr[ETH_ALEN];
97990a06 4448 int sta_idx = cb->args[2];
2ec600d6 4449 int err;
2ec600d6 4450
1b8ec87a 4451 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4452 if (err)
4453 return err;
bba95fef 4454
97990a06
JB		 4455 if (!wdev->netdev) {
4456 err = -EINVAL;
4457 goto out_err;
4458 }
4459
1b8ec87a 4460 if (!rdev->ops->dump_station) {
eec60b03 4461 err = -EOPNOTSUPP;
bba95fef
JB		 4462 goto out_err;
4463 }
4464
bba95fef 4465 while (1) {
f612cedf 4466 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 4467 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 4468 mac_addr, &sinfo);
bba95fef
JB		 4469 if (err == -ENOENT)
4470 break;
4471 if (err)
3b85875a 4472 goto out_err;
bba95fef 4473
cf5ead82 4474 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 4475 NETLINK_CB(cb->skb).portid,
bba95fef 4476 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 4477 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 4478 &sinfo) < 0)
4479 goto out;
4480
4481 sta_idx++;
4482 }
4483
bba95fef 4484 out:
97990a06 4485 cb->args[2] = sta_idx;
bba95fef 4486 err = skb->len;
bba95fef 4487 out_err:
1b8ec87a 4488 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 4489
4490 return err;
2ec600d6 4491}
fd5b74dc 4492
5727ef1b
JB		 4493static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4494{
4c476991
JB		 4495 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4496 struct net_device *dev = info->user_ptr[1];
2ec600d6 4497 struct station_info sinfo;
fd5b74dc
JB		 4498 struct sk_buff *msg;
4499 u8 *mac_addr = NULL;
4c476991 4500 int err;
fd5b74dc 4501
2ec600d6 4502 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 4503
4504 if (!info->attrs[NL80211_ATTR_MAC])
4505 return -EINVAL;
4506
4507 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4508
4c476991
JB		 4509 if (!rdev->ops->get_station)
4510 return -EOPNOTSUPP;
3b85875a 4511
e35e4d28 4512 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 4513 if (err)
4c476991 4514 return err;
2ec600d6 4515
fd2120ca 4516 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 4517 if (!msg)
4c476991 4518 return -ENOMEM;
fd5b74dc 4519
cf5ead82
JB		 4520 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4521 info->snd_portid, info->snd_seq, 0,
66266b3a 4522 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 4523 nlmsg_free(msg);
4524 return -ENOBUFS;
4525 }
3b85875a 4526
4c476991 4527 return genlmsg_reply(msg, info);
5727ef1b
JB		 4528}
4529
77ee7c89
JB		 4530int cfg80211_check_station_change(struct wiphy *wiphy,
4531 struct station_parameters *params,
4532 enum cfg80211_station_type statype)
4533{
e4208427
AB		 4534 if (params->listen_interval != -1 &&
4535 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4536 return -EINVAL;
e4208427 4537
17b94247
AB		 4538 if (params->support_p2p_ps != -1 &&
4539 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4540 return -EINVAL;
4541
c72e1140 4542 if (params->aid &&
e4208427
AB		 4543 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4544 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4545 return -EINVAL;
4546
4547 /* When you run into this, adjust the code below for the new flag */
4548 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4549
4550 switch (statype) {
eef941e6
TP		 4551 case CFG80211_STA_MESH_PEER_KERNEL:
4552 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4553 /*
4554 * No ignoring the TDLS flag here -- the userspace mesh
4555 * code doesn't have the bug of including TDLS in the
4556 * mask everywhere.
4557 */
4558 if (params->sta_flags_mask &
4559 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4560 BIT(NL80211_STA_FLAG_MFP) |
4561 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4562 return -EINVAL;
4563 break;
4564 case CFG80211_STA_TDLS_PEER_SETUP:
4565 case CFG80211_STA_TDLS_PEER_ACTIVE:
4566 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4567 return -EINVAL;
4568 /* ignore since it can't change */
4569 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4570 break;
4571 default:
4572 /* disallow mesh-specific things */
4573 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4574 return -EINVAL;
4575 if (params->local_pm)
4576 return -EINVAL;
4577 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4578 return -EINVAL;
4579 }
4580
4581 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4582 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4583 /* TDLS can't be set, ... */
4584 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4585 return -EINVAL;
4586 /*
4587 * ... but don't bother the driver with it. This works around
4588 * a hostapd/wpa_supplicant issue -- it always includes the
4589 * TLDS_PEER flag in the mask even for AP mode.
4590 */
4591 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4592 }
4593
47edb11b
AB		 4594 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4595 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4596 /* reject other things that can't change */
4597 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4598 return -EINVAL;
4599 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4600 return -EINVAL;
4601 if (params->supported_rates)
4602 return -EINVAL;
4603 if (params->ext_capab || params->ht_capa || params->vht_capa)
4604 return -EINVAL;
4605 }
4606
47edb11b
AB		 4607 if (statype != CFG80211_STA_AP_CLIENT &&
4608 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4609 if (params->vlan)
4610 return -EINVAL;
4611 }
4612
4613 switch (statype) {
4614 case CFG80211_STA_AP_MLME_CLIENT:
4615 /* Use this only for authorizing/unauthorizing a station */
4616 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4617 return -EOPNOTSUPP;
4618 break;
4619 case CFG80211_STA_AP_CLIENT:
47edb11b 4620 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4621 /* accept only the listed bits */
4622 if (params->sta_flags_mask &
4623 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4624 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4625 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4626 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4627 BIT(NL80211_STA_FLAG_WME) |
4628 BIT(NL80211_STA_FLAG_MFP)))
4629 return -EINVAL;
4630
4631 /* but authenticated/associated only if driver handles it */
4632 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4633 params->sta_flags_mask &
4634 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4635 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4636 return -EINVAL;
4637 break;
4638 case CFG80211_STA_IBSS:
4639 case CFG80211_STA_AP_STA:
4640 /* reject any changes other than AUTHORIZED */
4641 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4642 return -EINVAL;
4643 break;
4644 case CFG80211_STA_TDLS_PEER_SETUP:
4645 /* reject any changes other than AUTHORIZED or WME */
4646 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4647 BIT(NL80211_STA_FLAG_WME)))
4648 return -EINVAL;
4649 /* force (at least) rates when authorizing */
4650 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4651 !params->supported_rates)
4652 return -EINVAL;
4653 break;
4654 case CFG80211_STA_TDLS_PEER_ACTIVE:
4655 /* reject any changes */
4656 return -EINVAL;
eef941e6 4657 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4658 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4659 return -EINVAL;
4660 break;
eef941e6 4661 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4662 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4663 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4664 return -EINVAL;
4665 break;
4666 }
4667
06f7c88c
BL		 4668 /*
4669 * Older kernel versions ignored this attribute entirely, so don't
4670 * reject attempts to update it but mark it as unused instead so the
4671 * driver won't look at the data.
4672 */
4673 if (statype != CFG80211_STA_AP_CLIENT_UNASSOC &&
4674 statype != CFG80211_STA_TDLS_PEER_SETUP)
4675 params->opmode_notif_used = false;
4676
77ee7c89
JB		 4677 return 0;
4678}
4679EXPORT_SYMBOL(cfg80211_check_station_change);
4680
5727ef1b 4681/*
c258d2de 4682 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4683 */
80b99899
JB		 4684static struct net_device *get_vlan(struct genl_info *info,
4685 struct cfg80211_registered_device *rdev)
5727ef1b 4686{
463d0183 4687 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4688 struct net_device *v;
4689 int ret;
4690
4691 if (!vlanattr)
4692 return NULL;
4693
4694 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4695 if (!v)
4696 return ERR_PTR(-ENODEV);
4697
4698 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4699 ret = -EINVAL;
4700 goto error;
5727ef1b 4701 }
80b99899 4702
77ee7c89
JB		 4703 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4704 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4705 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4706 ret = -EINVAL;
4707 goto error;
4708 }
4709
80b99899
JB		 4710 if (!netif_running(v)) {
4711 ret = -ENETDOWN;
4712 goto error;
4713 }
4714
4715 return v;
4716 error:
4717 dev_put(v);
4718 return ERR_PTR(ret);
5727ef1b
JB		 4719}
4720
94e860f1
JB		 4721static const struct nla_policy
4722nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4723 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4724 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4725};
4726
ff276691
JB		 4727static int nl80211_parse_sta_wme(struct genl_info *info,
4728 struct station_parameters *params)
df881293 4729{
df881293
JM		 4730 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4731 struct nlattr *nla;
4732 int err;
4733
df881293
JM		 4734 /* parse WME attributes if present */
4735 if (!info->attrs[NL80211_ATTR_STA_WME])
4736 return 0;
4737
4738 nla = info->attrs[NL80211_ATTR_STA_WME];
4739 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4740 nl80211_sta_wme_policy);
4741 if (err)
4742 return err;
4743
4744 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4745 params->uapsd_queues = nla_get_u8(
4746 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4747 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4748 return -EINVAL;
4749
4750 if (tb[NL80211_STA_WME_MAX_SP])
4751 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4752
4753 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4754 return -EINVAL;
4755
4756 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4757
4758 return 0;
4759}
4760
c01fc9ad
SD		 4761static int nl80211_parse_sta_channel_info(struct genl_info *info,
4762 struct station_parameters *params)
4763{
4764 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4765 params->supported_channels =
4766 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4767 params->supported_channels_len =
4768 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4769 /*
4770 * Need to include at least one (first channel, number of
4771 * channels) tuple for each subband, and must have proper
4772 * tuples for the rest of the data as well.
4773 */
4774 if (params->supported_channels_len < 2)
4775 return -EINVAL;
4776 if (params->supported_channels_len % 2)
4777 return -EINVAL;
4778 }
4779
4780 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4781 params->supported_oper_classes =
4782 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4783 params->supported_oper_classes_len =
4784 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4785 /*
4786 * The value of the Length field of the Supported Operating
4787 * Classes element is between 2 and 253.
4788 */
4789 if (params->supported_oper_classes_len < 2 ||
4790 params->supported_oper_classes_len > 253)
4791 return -EINVAL;
4792 }
4793 return 0;
4794}
4795
ff276691
JB		 4796static int nl80211_set_station_tdls(struct genl_info *info,
4797 struct station_parameters *params)
4798{
c01fc9ad 4799 int err;
ff276691 4800 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4801 if (info->attrs[NL80211_ATTR_PEER_AID])
4802 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4803 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4804 params->ht_capa =
4805 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4806 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4807 params->vht_capa =
4808 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4809
c01fc9ad
SD		 4810 err = nl80211_parse_sta_channel_info(info, params);
4811 if (err)
4812 return err;
4813
ff276691
JB		 4814 return nl80211_parse_sta_wme(info, params);
4815}
4816
5727ef1b
JB		 4817static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4818{
4c476991 4819 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4820 struct net_device *dev = info->user_ptr[1];
5727ef1b 4821 struct station_parameters params;
77ee7c89
JB		 4822 u8 *mac_addr;
4823 int err;
5727ef1b
JB		 4824
4825 memset(&params, 0, sizeof(params));
4826
77ee7c89
JB		 4827 if (!rdev->ops->change_station)
4828 return -EOPNOTSUPP;
4829
e4208427
AB		 4830 /*
4831 * AID and listen_interval properties can be set only for unassociated
4832 * station. Include these parameters here and will check them in
4833 * cfg80211_check_station_change().
4834 */
a9bc31e4
AB		 4835 if (info->attrs[NL80211_ATTR_STA_AID])
4836 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4837
4838 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4839 params.listen_interval =
4840 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4841 else
4842 params.listen_interval = -1;
5727ef1b 4843
17b94247
AB		 4844 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4845 u8 tmp;
4846
4847 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4848 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4849 return -EINVAL;
4850
4851 params.support_p2p_ps = tmp;
4852 } else {
4853 params.support_p2p_ps = -1;
4854 }
4855
5727ef1b
JB		 4856 if (!info->attrs[NL80211_ATTR_MAC])
4857 return -EINVAL;
4858
4859 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4860
4861 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4862 params.supported_rates =
4863 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4864 params.supported_rates_len =
4865 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4866 }
4867
9d62a986
JM		 4868 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4869 params.capability =
4870 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4871 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4872 }
4873
4874 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4875 params.ext_capab =
4876 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4877 params.ext_capab_len =
4878 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4879 }
4880
bdd3ae3d 4881 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4882 return -EINVAL;
4883
f8bacc21 4884 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4885 params.plink_action =
f8bacc21
JB		 4886 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4887 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4888 return -EINVAL;
4889 }
2ec600d6 4890
f8bacc21 4891 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4892 params.plink_state =
f8bacc21
JB		 4893 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4894 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4895 return -EINVAL;
7d27a0ba
MH		 4896 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4897 params.peer_aid = nla_get_u16(
4898 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4899 if (params.peer_aid > IEEE80211_MAX_AID)
4900 return -EINVAL;
4901 }
f8bacc21
JB		 4902 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4903 }
9c3990aa 4904
3b1c5a53
MP		 4905 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4906 enum nl80211_mesh_power_mode pm = nla_get_u32(
4907 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4908
4909 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4910 pm > NL80211_MESH_POWER_MAX)
4911 return -EINVAL;
4912
4913 params.local_pm = pm;
4914 }
4915
06f7c88c
BL		 4916 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4917 params.opmode_notif_used = true;
4918 params.opmode_notif =
4919 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4920 }
4921
77ee7c89
JB		 4922 /* Include parameters for TDLS peer (will check later) */
4923 err = nl80211_set_station_tdls(info, &params);
4924 if (err)
4925 return err;
4926
4927 params.vlan = get_vlan(info, rdev);
4928 if (IS_ERR(params.vlan))
4929 return PTR_ERR(params.vlan);
4930
a97f4424
JB		 4931 switch (dev->ieee80211_ptr->iftype) {
4932 case NL80211_IFTYPE_AP:
4933 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4934 case NL80211_IFTYPE_P2P_GO:
074ac8df 4935 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4936 case NL80211_IFTYPE_STATION:
267335d6 4937 case NL80211_IFTYPE_ADHOC:
a97f4424 4938 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4939 break;
4940 default:
77ee7c89
JB		 4941 err = -EOPNOTSUPP;
4942 goto out_put_vlan;
034d655e
JB		 4943 }
4944
77ee7c89 4945 /* driver will call cfg80211_check_station_change() */
e35e4d28 4946 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4947
77ee7c89 4948 out_put_vlan:
5727ef1b
JB		 4949 if (params.vlan)
4950 dev_put(params.vlan);
3b85875a 4951
5727ef1b
JB		 4952 return err;
4953}
4954
4955static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4956{
4c476991 4957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4958 int err;
4c476991 4959 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4960 struct station_parameters params;
4961 u8 *mac_addr = NULL;
bda95eb1
JB		 4962 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4963 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 4964
4965 memset(&params, 0, sizeof(params));
4966
984c311b
JB		 4967 if (!rdev->ops->add_station)
4968 return -EOPNOTSUPP;
4969
5727ef1b
JB		 4970 if (!info->attrs[NL80211_ATTR_MAC])
4971 return -EINVAL;
4972
5727ef1b
JB		 4973 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4974 return -EINVAL;
4975
4976 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4977 return -EINVAL;
4978
5e4b6f56
JM		 4979 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4980 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4981 return -EINVAL;
4982
5727ef1b
JB		 4983 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4984 params.supported_rates =
4985 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4986 params.supported_rates_len =
4987 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4988 params.listen_interval =
4989 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4990
17b94247
AB		 4991 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4992 u8 tmp;
4993
4994 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4995 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4996 return -EINVAL;
4997
4998 params.support_p2p_ps = tmp;
4999 } else {
5000 /*
5001 * if not specified, assume it's supported for P2P GO interface,
5002 * and is NOT supported for AP interface
5003 */
5004 params.support_p2p_ps =
5005 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
5006 }
5007
3d124ea2 5008 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 5009 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 5010 else
5011 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 5012 if (!params.aid || params.aid > IEEE80211_MAX_AID)
5013 return -EINVAL;
51b50fbe 5014
9d62a986
JM		 5015 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
5016 params.capability =
5017 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
5018 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
5019 }
5020
5021 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
5022 params.ext_capab =
5023 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5024 params.ext_capab_len =
5025 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5026 }
5027
36aedc90
JM		 5028 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
5029 params.ht_capa =
5030 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 5031
f461be3e
MP		 5032 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
5033 params.vht_capa =
5034 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
5035
60f4a7b1
MK		 5036 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5037 params.opmode_notif_used = true;
5038 params.opmode_notif =
5039 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5040 }
5041
f8bacc21 5042 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 5043 params.plink_action =
f8bacc21
JB		 5044 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
5045 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
5046 return -EINVAL;
5047 }
96b78dff 5048
c01fc9ad
SD		 5049 err = nl80211_parse_sta_channel_info(info, &params);
5050 if (err)
5051 return err;
5052
ff276691
JB		 5053 err = nl80211_parse_sta_wme(info, &params);
5054 if (err)
5055 return err;
bdd90d5e 5056
bdd3ae3d 5057 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 5058 return -EINVAL;
5059
496fcc29
JB		 5060 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
5061 * as userspace might just pass through the capabilities from the IEs
5062 * directly, rather than enforcing this restriction and returning an
5063 * error in this case.
5064 */
5065 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
5066 params.ht_capa = NULL;
5067 params.vht_capa = NULL;
5068 }
5069
77ee7c89
JB		 5070 /* When you run into this, adjust the code below for the new flag */
5071 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
5072
bdd90d5e
JB		 5073 switch (dev->ieee80211_ptr->iftype) {
5074 case NL80211_IFTYPE_AP:
5075 case NL80211_IFTYPE_AP_VLAN:
5076 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 5077 /* ignore WME attributes if iface/sta is not capable */
5078 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
5079 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
5080 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 5081
bdd90d5e 5082 /* TDLS peers cannot be added */
3d124ea2
JM		 5083 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5084 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 5085 return -EINVAL;
bdd90d5e
JB		 5086 /* but don't bother the driver with it */
5087 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 5088
d582cffb
JB		 5089 /* allow authenticated/associated only if driver handles it */
5090 if (!(rdev->wiphy.features &
5091 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 5092 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 5093 return -EINVAL;
5094
bda95eb1
JB		 5095 /* Older userspace, or userspace wanting to be compatible with
5096 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
5097 * and assoc flags in the mask, but assumes the station will be
5098 * added as associated anyway since this was the required driver
5099 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
5100 * introduced.
5101 * In order to not bother drivers with this quirk in the API
5102 * set the flags in both the mask and set for new stations in
5103 * this case.
5104 */
5105 if (!(params.sta_flags_mask & auth_assoc)) {
5106 params.sta_flags_mask |= auth_assoc;
5107 params.sta_flags_set |= auth_assoc;
5108 }
5109
bdd90d5e
JB		 5110 /* must be last in here for error handling */
5111 params.vlan = get_vlan(info, rdev);
5112 if (IS_ERR(params.vlan))
5113 return PTR_ERR(params.vlan);
5114 break;
5115 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 5116 /* ignore uAPSD data */
5117 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5118
d582cffb
JB		 5119 /* associated is disallowed */
5120 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
5121 return -EINVAL;
bdd90d5e 5122 /* TDLS peers cannot be added */
3d124ea2
JM		 5123 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5124 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 5125 return -EINVAL;
5126 break;
5127 case NL80211_IFTYPE_STATION:
93d08f0b 5128 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 5129 /* ignore uAPSD data */
5130 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5131
77ee7c89
JB		 5132 /* these are disallowed */
5133 if (params.sta_flags_mask &
5134 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
5135 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 5136 return -EINVAL;
bdd90d5e
JB		 5137 /* Only TDLS peers can be added */
5138 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
5139 return -EINVAL;
5140 /* Can only add if TDLS ... */
5141 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
5142 return -EOPNOTSUPP;
5143 /* ... with external setup is supported */
5144 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
5145 return -EOPNOTSUPP;
77ee7c89
JB		 5146 /*
5147 * Older wpa_supplicant versions always mark the TDLS peer
5148 * as authorized, but it shouldn't yet be.
5149 */
5150 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 5151 break;
5152 default:
5153 return -EOPNOTSUPP;
c75786c9
EP		 5154 }
5155
bdd90d5e 5156 /* be aware of params.vlan when changing code here */
5727ef1b 5157
e35e4d28 5158 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 5159
5727ef1b
JB		 5160 if (params.vlan)
5161 dev_put(params.vlan);
5727ef1b
JB		 5162 return err;
5163}
5164
5165static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
5166{
4c476991
JB		 5167 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5168 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 5169 struct station_del_parameters params;
5170
5171 memset(&params, 0, sizeof(params));
5727ef1b
JB		 5172
5173 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 5174 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 5175
e80cf853 5176 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 5177 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 5178 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5179 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5180 return -EINVAL;
5727ef1b 5181
4c476991
JB		 5182 if (!rdev->ops->del_station)
5183 return -EOPNOTSUPP;
3b85875a 5184
98856866
JM		 5185 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
5186 params.subtype =
5187 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
5188 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
5189 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
5190 return -EINVAL;
5191 } else {
5192 /* Default to Deauthentication frame */
5193 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
5194 }
5195
5196 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
5197 params.reason_code =
5198 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5199 if (params.reason_code == 0)
5200 return -EINVAL; /* 0 is reserved */
5201 } else {
5202 /* Default to reason code 2 */
5203 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
5204 }
5205
89c771e5 5206 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 5207}
5208
15e47304 5209static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 5210 int flags, struct net_device *dev,
5211 u8 *dst, u8 *next_hop,
5212 struct mpath_info *pinfo)
5213{
5214 void *hdr;
5215 struct nlattr *pinfoattr;
5216
1ef4c850 5217 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 5218 if (!hdr)
5219 return -1;
5220
9360ffd1
DM		 5221 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5222 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
5223 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
5224 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
5225 goto nla_put_failure;
f5ea9120 5226
2ec600d6
LCC		 5227 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
5228 if (!pinfoattr)
5229 goto nla_put_failure;
9360ffd1
DM		 5230 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
5231 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
5232 pinfo->frame_qlen))
5233 goto nla_put_failure;
5234 if (((pinfo->filled & MPATH_INFO_SN) &&
5235 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
5236 ((pinfo->filled & MPATH_INFO_METRIC) &&
5237 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
5238 pinfo->metric)) ||
5239 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
5240 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
5241 pinfo->exptime)) ||
5242 ((pinfo->filled & MPATH_INFO_FLAGS) &&
5243 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
5244 pinfo->flags)) ||
5245 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
5246 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
5247 pinfo->discovery_timeout)) ||
5248 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
5249 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
5250 pinfo->discovery_retries)))
5251 goto nla_put_failure;
2ec600d6
LCC		 5252
5253 nla_nest_end(msg, pinfoattr);
5254
053c095a
JB		 5255 genlmsg_end(msg, hdr);
5256 return 0;
2ec600d6
LCC		 5257
5258 nla_put_failure:
bc3ed28c
TG		 5259 genlmsg_cancel(msg, hdr);
5260 return -EMSGSIZE;
2ec600d6
LCC		 5261}
5262
5263static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 5264 struct netlink_callback *cb)
2ec600d6 5265{
2ec600d6 5266 struct mpath_info pinfo;
1b8ec87a 5267 struct cfg80211_registered_device *rdev;
97990a06 5268 struct wireless_dev *wdev;
2ec600d6
LCC		 5269 u8 dst[ETH_ALEN];
5270 u8 next_hop[ETH_ALEN];
97990a06 5271 int path_idx = cb->args[2];
2ec600d6 5272 int err;
2ec600d6 5273
1b8ec87a 5274 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5275 if (err)
5276 return err;
bba95fef 5277
1b8ec87a 5278 if (!rdev->ops->dump_mpath) {
eec60b03 5279 err = -EOPNOTSUPP;
bba95fef
JB		 5280 goto out_err;
5281 }
5282
97990a06 5283 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 5284 err = -EOPNOTSUPP;
0448b5fc 5285 goto out_err;
eec60b03
JM		 5286 }
5287
bba95fef 5288 while (1) {
1b8ec87a 5289 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 5290 next_hop, &pinfo);
bba95fef 5291 if (err == -ENOENT)
2ec600d6 5292 break;
bba95fef 5293 if (err)
3b85875a 5294 goto out_err;
2ec600d6 5295
15e47304 5296 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 5297 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5298 wdev->netdev, dst, next_hop,
bba95fef
JB		 5299 &pinfo) < 0)
5300 goto out;
2ec600d6 5301
bba95fef 5302 path_idx++;
2ec600d6 5303 }
2ec600d6 5304
bba95fef 5305 out:
97990a06 5306 cb->args[2] = path_idx;
bba95fef 5307 err = skb->len;
bba95fef 5308 out_err:
1b8ec87a 5309 nl80211_finish_wdev_dump(rdev);
bba95fef 5310 return err;
2ec600d6
LCC		 5311}
5312
5313static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
5314{
4c476991 5315 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 5316 int err;
4c476991 5317 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5318 struct mpath_info pinfo;
5319 struct sk_buff *msg;
5320 u8 *dst = NULL;
5321 u8 next_hop[ETH_ALEN];
5322
5323 memset(&pinfo, 0, sizeof(pinfo));
5324
5325 if (!info->attrs[NL80211_ATTR_MAC])
5326 return -EINVAL;
5327
5328 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5329
4c476991
JB		 5330 if (!rdev->ops->get_mpath)
5331 return -EOPNOTSUPP;
2ec600d6 5332
4c476991
JB		 5333 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5334 return -EOPNOTSUPP;
eec60b03 5335
e35e4d28 5336 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 5337 if (err)
4c476991 5338 return err;
2ec600d6 5339
fd2120ca 5340 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 5341 if (!msg)
4c476991 5342 return -ENOMEM;
2ec600d6 5343
15e47304 5344 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 5345 dev, dst, next_hop, &pinfo) < 0) {
5346 nlmsg_free(msg);
5347 return -ENOBUFS;
5348 }
3b85875a 5349
4c476991 5350 return genlmsg_reply(msg, info);
2ec600d6
LCC		 5351}
5352
5353static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
5354{
4c476991
JB		 5355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5356 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5357 u8 *dst = NULL;
5358 u8 *next_hop = NULL;
5359
5360 if (!info->attrs[NL80211_ATTR_MAC])
5361 return -EINVAL;
5362
5363 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5364 return -EINVAL;
5365
5366 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5367 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5368
4c476991
JB		 5369 if (!rdev->ops->change_mpath)
5370 return -EOPNOTSUPP;
35a8efe1 5371
4c476991
JB		 5372 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5373 return -EOPNOTSUPP;
2ec600d6 5374
e35e4d28 5375 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 5376}
4c476991 5377
2ec600d6
LCC		 5378static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
5379{
4c476991
JB		 5380 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5381 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5382 u8 *dst = NULL;
5383 u8 *next_hop = NULL;
5384
5385 if (!info->attrs[NL80211_ATTR_MAC])
5386 return -EINVAL;
5387
5388 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5389 return -EINVAL;
5390
5391 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5392 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5393
4c476991
JB		 5394 if (!rdev->ops->add_mpath)
5395 return -EOPNOTSUPP;
35a8efe1 5396
4c476991
JB		 5397 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5398 return -EOPNOTSUPP;
2ec600d6 5399
e35e4d28 5400 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 5401}
5402
5403static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
5404{
4c476991
JB		 5405 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5406 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5407 u8 *dst = NULL;
5408
5409 if (info->attrs[NL80211_ATTR_MAC])
5410 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5411
4c476991
JB		 5412 if (!rdev->ops->del_mpath)
5413 return -EOPNOTSUPP;
3b85875a 5414
e35e4d28 5415 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 5416}
5417
66be7d2b
HR		 5418static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
5419{
5420 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5421 int err;
5422 struct net_device *dev = info->user_ptr[1];
5423 struct mpath_info pinfo;
5424 struct sk_buff *msg;
5425 u8 *dst = NULL;
5426 u8 mpp[ETH_ALEN];
5427
5428 memset(&pinfo, 0, sizeof(pinfo));
5429
5430 if (!info->attrs[NL80211_ATTR_MAC])
5431 return -EINVAL;
5432
5433 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5434
5435 if (!rdev->ops->get_mpp)
5436 return -EOPNOTSUPP;
5437
5438 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5439 return -EOPNOTSUPP;
5440
5441 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5442 if (err)
5443 return err;
5444
5445 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5446 if (!msg)
5447 return -ENOMEM;
5448
5449 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5450 dev, dst, mpp, &pinfo) < 0) {
5451 nlmsg_free(msg);
5452 return -ENOBUFS;
5453 }
5454
5455 return genlmsg_reply(msg, info);
5456}
5457
5458static int nl80211_dump_mpp(struct sk_buff *skb,
5459 struct netlink_callback *cb)
5460{
5461 struct mpath_info pinfo;
5462 struct cfg80211_registered_device *rdev;
5463 struct wireless_dev *wdev;
5464 u8 dst[ETH_ALEN];
5465 u8 mpp[ETH_ALEN];
5466 int path_idx = cb->args[2];
5467 int err;
5468
5469 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5470 if (err)
5471 return err;
5472
5473 if (!rdev->ops->dump_mpp) {
5474 err = -EOPNOTSUPP;
5475 goto out_err;
5476 }
5477
5478 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5479 err = -EOPNOTSUPP;
5480 goto out_err;
5481 }
5482
5483 while (1) {
5484 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5485 mpp, &pinfo);
5486 if (err == -ENOENT)
5487 break;
5488 if (err)
5489 goto out_err;
5490
5491 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5492 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5493 wdev->netdev, dst, mpp,
5494 &pinfo) < 0)
5495 goto out;
5496
5497 path_idx++;
5498 }
5499
5500 out:
5501 cb->args[2] = path_idx;
5502 err = skb->len;
5503 out_err:
5504 nl80211_finish_wdev_dump(rdev);
5505 return err;
5506}
5507
9f1ba906
JM		 5508static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5509{
4c476991
JB		 5510 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5511 struct net_device *dev = info->user_ptr[1];
c56589ed 5512 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 5513 struct bss_parameters params;
c56589ed 5514 int err;
9f1ba906
JM		 5515
5516 memset(&params, 0, sizeof(params));
5517 /* default to not changing parameters */
5518 params.use_cts_prot = -1;
5519 params.use_short_preamble = -1;
5520 params.use_short_slot_time = -1;
fd8aaaf3 5521 params.ap_isolate = -1;
50b12f59 5522 params.ht_opmode = -1;
53cabad7
JB		 5523 params.p2p_ctwindow = -1;
5524 params.p2p_opp_ps = -1;
9f1ba906
JM		 5525
5526 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5527 params.use_cts_prot =
5528 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5529 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5530 params.use_short_preamble =
5531 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5532 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5533 params.use_short_slot_time =
5534 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 5535 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5536 params.basic_rates =
5537 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5538 params.basic_rates_len =
5539 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5540 }
fd8aaaf3
FF		 5541 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5542 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 5543 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5544 params.ht_opmode =
5545 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 5546
53cabad7
JB		 5547 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5548 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5549 return -EINVAL;
5550 params.p2p_ctwindow =
5551 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5552 if (params.p2p_ctwindow < 0)
5553 return -EINVAL;
5554 if (params.p2p_ctwindow != 0 &&
5555 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5556 return -EINVAL;
5557 }
5558
5559 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5560 u8 tmp;
5561
5562 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5563 return -EINVAL;
5564 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5565 if (tmp > 1)
5566 return -EINVAL;
5567 params.p2p_opp_ps = tmp;
5568 if (params.p2p_opp_ps &&
5569 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5570 return -EINVAL;
5571 }
5572
4c476991
JB		 5573 if (!rdev->ops->change_bss)
5574 return -EOPNOTSUPP;
9f1ba906 5575
074ac8df 5576 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5577 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5578 return -EOPNOTSUPP;
3b85875a 5579
c56589ed
SW		 5580 wdev_lock(wdev);
5581 err = rdev_change_bss(rdev, dev, &params);
5582 wdev_unlock(wdev);
5583
5584 return err;
9f1ba906
JM		 5585}
5586
b2e1b302
LR		 5587static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5588{
b2e1b302 5589 char *data = NULL;
05050753 5590 bool is_indoor;
57b5ce07 5591 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5592 u32 owner_nlportid;
5593
80778f18
LR		 5594 /*
5595 * You should only get this when cfg80211 hasn't yet initialized
5596 * completely when built-in to the kernel right between the time
5597 * window between nl80211_init() and regulatory_init(), if that is
5598 * even possible.
5599 */
458f4f9e 5600 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5601 return -EINPROGRESS;
80778f18 5602
57b5ce07
LR		 5603 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5604 user_reg_hint_type =
5605 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5606 else
5607 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5608
5609 switch (user_reg_hint_type) {
5610 case NL80211_USER_REG_HINT_USER:
5611 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5612 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5613 return -EINVAL;
5614
5615 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5616 return regulatory_hint_user(data, user_reg_hint_type);
5617 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5618 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5619 owner_nlportid = info->snd_portid;
5620 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5621 } else {
5622 owner_nlportid = 0;
5623 is_indoor = true;
5624 }
5625
5626 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5627 default:
5628 return -EINVAL;
5629 }
b2e1b302
LR		 5630}
5631
24bdd9f4 5632static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5633 struct genl_info *info)
93da9cc1 5634{
4c476991 5635 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5636 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5637 struct wireless_dev *wdev = dev->ieee80211_ptr;
5638 struct mesh_config cur_params;
5639 int err = 0;
93da9cc1 5640 void *hdr;
5641 struct nlattr *pinfoattr;
5642 struct sk_buff *msg;
5643
29cbe68c
JB		 5644 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5645 return -EOPNOTSUPP;
5646
24bdd9f4 5647 if (!rdev->ops->get_mesh_config)
4c476991 5648 return -EOPNOTSUPP;
f3f92586 5649
29cbe68c
JB		 5650 wdev_lock(wdev);
5651 /* If not connected, get default parameters */
5652 if (!wdev->mesh_id_len)
5653 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5654 else
e35e4d28 5655 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5656 wdev_unlock(wdev);
5657
93da9cc1 5658 if (err)
4c476991 5659 return err;
93da9cc1 5660
5661 /* Draw up a netlink message to send back */
fd2120ca 5662 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5663 if (!msg)
5664 return -ENOMEM;
15e47304 5665 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5666 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5667 if (!hdr)
efe1cf0c 5668 goto out;
24bdd9f4 5669 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5670 if (!pinfoattr)
5671 goto nla_put_failure;
9360ffd1
DM		 5672 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5673 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5674 cur_params.dot11MeshRetryTimeout) ||
5675 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5676 cur_params.dot11MeshConfirmTimeout) ||
5677 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5678 cur_params.dot11MeshHoldingTimeout) ||
5679 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5680 cur_params.dot11MeshMaxPeerLinks) ||
5681 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5682 cur_params.dot11MeshMaxRetries) ||
5683 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5684 cur_params.dot11MeshTTL) ||
5685 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5686 cur_params.element_ttl) ||
5687 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5688 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5689 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5690 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5691 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5692 cur_params.dot11MeshHWMPmaxPREQretries) ||
5693 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5694 cur_params.path_refresh_time) ||
5695 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5696 cur_params.min_discovery_timeout) ||
5697 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5698 cur_params.dot11MeshHWMPactivePathTimeout) ||
5699 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5700 cur_params.dot11MeshHWMPpreqMinInterval) ||
5701 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5702 cur_params.dot11MeshHWMPperrMinInterval) ||
5703 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5704 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5705 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5706 cur_params.dot11MeshHWMPRootMode) ||
5707 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5708 cur_params.dot11MeshHWMPRannInterval) ||
5709 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5710 cur_params.dot11MeshGateAnnouncementProtocol) ||
5711 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5712 cur_params.dot11MeshForwarding) ||
5713 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5714 cur_params.rssi_threshold) ||
5715 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5716 cur_params.ht_opmode) ||
5717 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5718 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5719 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5720 cur_params.dot11MeshHWMProotInterval) ||
5721 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5722 cur_params.dot11MeshHWMPconfirmationInterval) ||
5723 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5724 cur_params.power_mode) ||
5725 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5726 cur_params.dot11MeshAwakeWindowDuration) ||
5727 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5728 cur_params.plink_timeout))
9360ffd1 5729 goto nla_put_failure;
93da9cc1 5730 nla_nest_end(msg, pinfoattr);
5731 genlmsg_end(msg, hdr);
4c476991 5732 return genlmsg_reply(msg, info);
93da9cc1 5733
3b85875a 5734 nla_put_failure:
93da9cc1 5735 genlmsg_cancel(msg, hdr);
efe1cf0c 5736 out:
d080e275 5737 nlmsg_free(msg);
4c476991 5738 return -ENOBUFS;
93da9cc1 5739}
5740
b54452b0 5741static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5742 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5743 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5744 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5745 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5746 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5747 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5748 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5749 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5750 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5751 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5752 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5753 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5754 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5755 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5756 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5757 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5758 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5759 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5760 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5761 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5762 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5763 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5764 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5765 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5766 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5767 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5768 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5769 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5770};
5771
c80d545d
JC		 5772static const struct nla_policy
5773 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5774 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5775 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5776 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5777 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5778 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5779 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5780 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5781 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5782 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5783};
5784
f151d9db
AB		 5785static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5786{
5787 u8 val = nla_get_u8(nla);
5788 if (val < min || val > max)
5789 return -EINVAL;
5790 *out = val;
5791 return 0;
5792}
5793
5794static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5795{
5796 u8 val = nla_get_u8(nla);
5797 if (val < min || val > max)
5798 return -EINVAL;
5799 *out = val;
5800 return 0;
5801}
5802
5803static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5804{
5805 u16 val = nla_get_u16(nla);
5806 if (val < min || val > max)
5807 return -EINVAL;
5808 *out = val;
5809 return 0;
5810}
5811
5812static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5813{
5814 u32 val = nla_get_u32(nla);
5815 if (val < min || val > max)
5816 return -EINVAL;
5817 *out = val;
5818 return 0;
5819}
5820
5821static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5822{
5823 s32 val = nla_get_s32(nla);
5824 if (val < min || val > max)
5825 return -EINVAL;
5826 *out = val;
5827 return 0;
5828}
5829
ff9a71af
JB		 5830static int nl80211_check_power_mode(const struct nlattr *nla,
5831 enum nl80211_mesh_power_mode min,
5832 enum nl80211_mesh_power_mode max,
5833 enum nl80211_mesh_power_mode *out)
5834{
5835 u32 val = nla_get_u32(nla);
5836 if (val < min || val > max)
5837 return -EINVAL;
5838 *out = val;
5839 return 0;
5840}
5841
24bdd9f4 5842static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5843 struct mesh_config *cfg,
5844 u32 *mask_out)
93da9cc1 5845{
93da9cc1 5846 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5847 u32 mask = 0;
9757235f 5848 u16 ht_opmode;
93da9cc1 5849
ea54fba2
MP		 5850#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5851do { \
5852 if (tb[attr]) { \
f151d9db 5853 if (fn(tb[attr], min, max, &cfg->param)) \
ea54fba2 5854 return -EINVAL; \
ea54fba2
MP		 5855 mask |= (1 << (attr - 1)); \
5856 } \
5857} while (0)
bd90fdcc 5858
24bdd9f4 5859 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5860 return -EINVAL;
5861 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5862 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5863 nl80211_meshconf_params_policy))
93da9cc1 5864 return -EINVAL;
5865
93da9cc1 5866 /* This makes sure that there aren't more than 32 mesh config
5867 * parameters (otherwise our bitfield scheme would not work.) */
5868 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5869
5870 /* Fill in the params struct */
ea54fba2 5871 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea 5872 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
f151d9db 5873 nl80211_check_u16);
ea54fba2 5874 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea 5875 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
f151d9db 5876 nl80211_check_u16);
ea54fba2 5877 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea 5878 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
f151d9db 5879 nl80211_check_u16);
ea54fba2 5880 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea 5881 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
f151d9db 5882 nl80211_check_u16);
ea54fba2 5883 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea 5884 mask, NL80211_MESHCONF_MAX_RETRIES,
f151d9db 5885 nl80211_check_u8);
ea54fba2 5886 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
f151d9db 5887 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
ea54fba2 5888 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea 5889 mask, NL80211_MESHCONF_ELEMENT_TTL,
f151d9db 5890 nl80211_check_u8);
ea54fba2 5891 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea 5892 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
f151d9db 5893 nl80211_check_bool);
ea54fba2
MP		 5894 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5895 1, 255, mask,
a4f606ea 5896 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
f151d9db 5897 nl80211_check_u32);
ea54fba2 5898 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea 5899 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
f151d9db 5900 nl80211_check_u8);
ea54fba2 5901 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea 5902 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
f151d9db 5903 nl80211_check_u32);
ea54fba2 5904 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea 5905 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
f151d9db 5906 nl80211_check_u16);
ea54fba2
MP		 5907 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5908 1, 65535, mask,
a4f606ea 5909 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
f151d9db 5910 nl80211_check_u32);
93da9cc1 5911 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5912 1, 65535, mask,
5913 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
f151d9db 5914 nl80211_check_u16);
dca7e943 5915 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5916 1, 65535, mask,
5917 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
f151d9db 5918 nl80211_check_u16);
93da9cc1 5919 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5920 dot11MeshHWMPnetDiameterTraversalTime,
5921 1, 65535, mask,
a4f606ea 5922 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
f151d9db 5923 nl80211_check_u16);
ea54fba2
MP		 5924 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5925 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
f151d9db 5926 nl80211_check_u8);
ea54fba2
MP		 5927 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5928 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
f151d9db 5929 nl80211_check_u16);
63c5723b 5930 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5931 dot11MeshGateAnnouncementProtocol, 0, 1,
5932 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
f151d9db 5933 nl80211_check_bool);
ea54fba2 5934 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea 5935 mask, NL80211_MESHCONF_FORWARDING,
f151d9db 5936 nl80211_check_bool);
83374fe9 5937 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5938 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
f151d9db 5939 nl80211_check_s32);
9757235f
MH		 5940 /*
5941 * Check HT operation mode based on
5942 * IEEE 802.11 2012 8.4.2.59 HT Operation element.
5943 */
5944 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
5945 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
5946
5947 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
5948 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
5949 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5950 return -EINVAL;
5951
5952 if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
5953 (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5954 return -EINVAL;
5955
5956 switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
5957 case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
5958 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
5959 if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
5960 return -EINVAL;
5961 break;
5962 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
5963 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
5964 if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5965 return -EINVAL;
5966 break;
5967 }
5968 cfg->ht_opmode = ht_opmode;
5969 }
ac1073a6 5970 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5971 1, 65535, mask,
ac1073a6 5972 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
f151d9db 5973 nl80211_check_u32);
ea54fba2 5974 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5975 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
f151d9db 5976 nl80211_check_u16);
728b19e5 5977 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5978 dot11MeshHWMPconfirmationInterval,
5979 1, 65535, mask,
728b19e5 5980 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
f151d9db 5981 nl80211_check_u16);
3b1c5a53
MP		 5982 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5983 NL80211_MESH_POWER_ACTIVE,
5984 NL80211_MESH_POWER_MAX,
5985 mask, NL80211_MESHCONF_POWER_MODE,
ff9a71af 5986 nl80211_check_power_mode);
3b1c5a53
MP		 5987 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5988 0, 65535, mask,
f151d9db 5989 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
31f909a2 5990 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538 5991 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
f151d9db 5992 nl80211_check_u32);
bd90fdcc
JB		 5993 if (mask_out)
5994 *mask_out = mask;
c80d545d 5995
bd90fdcc
JB		 5996 return 0;
5997
5998#undef FILL_IN_MESH_PARAM_IF_SET
5999}
6000
c80d545d
JC		 6001static int nl80211_parse_mesh_setup(struct genl_info *info,
6002 struct mesh_setup *setup)
6003{
bb2798d4 6004 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 6005 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
6006
6007 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
6008 return -EINVAL;
6009 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
6010 info->attrs[NL80211_ATTR_MESH_SETUP],
6011 nl80211_mesh_setup_params_policy))
6012 return -EINVAL;
6013
d299a1f2
JC		 6014 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
6015 setup->sync_method =
6016 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
6017 IEEE80211_SYNC_METHOD_VENDOR :
6018 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
6019
c80d545d
JC		 6020 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
6021 setup->path_sel_proto =
6022 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
6023 IEEE80211_PATH_PROTOCOL_VENDOR :
6024 IEEE80211_PATH_PROTOCOL_HWMP;
6025
6026 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
6027 setup->path_metric =
6028 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
6029 IEEE80211_PATH_METRIC_VENDOR :
6030 IEEE80211_PATH_METRIC_AIRTIME;
6031
581a8b0f 6032 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 6033 struct nlattr *ieattr =
581a8b0f 6034 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 6035 if (!is_valid_ie_attr(ieattr))
6036 return -EINVAL;
581a8b0f
JC		 6037 setup->ie = nla_data(ieattr);
6038 setup->ie_len = nla_len(ieattr);
c80d545d 6039 }
bb2798d4
TP		 6040 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
6041 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
6042 return -EINVAL;
6043 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 6044 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
6045 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 6046 if (setup->is_secure)
6047 setup->user_mpm = true;
c80d545d 6048
6e16d90b
CT		 6049 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
6050 if (!setup->user_mpm)
6051 return -EINVAL;
6052 setup->auth_id =
6053 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
6054 }
6055
c80d545d
JC		 6056 return 0;
6057}
6058
24bdd9f4 6059static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 6060 struct genl_info *info)
bd90fdcc
JB		 6061{
6062 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6063 struct net_device *dev = info->user_ptr[1];
29cbe68c 6064 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 6065 struct mesh_config cfg;
6066 u32 mask;
6067 int err;
6068
29cbe68c
JB		 6069 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
6070 return -EOPNOTSUPP;
6071
24bdd9f4 6072 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 6073 return -EOPNOTSUPP;
6074
24bdd9f4 6075 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 6076 if (err)
6077 return err;
6078
29cbe68c
JB		 6079 wdev_lock(wdev);
6080 if (!wdev->mesh_id_len)
6081 err = -ENOLINK;
6082
6083 if (!err)
e35e4d28 6084 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 6085
6086 wdev_unlock(wdev);
6087
6088 return err;
93da9cc1 6089}
6090
ad30ca2c
AN		 6091static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
6092 struct sk_buff *msg)
f130347c 6093{
f130347c
LR		 6094 struct nlattr *nl_reg_rules;
6095 unsigned int i;
f130347c 6096
458f4f9e
JB		 6097 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
6098 (regdom->dfs_region &&
6099 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 6100 goto nla_put_failure;
458f4f9e 6101
f130347c
LR		 6102 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
6103 if (!nl_reg_rules)
ad30ca2c 6104 goto nla_put_failure;
f130347c 6105
458f4f9e 6106 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 6107 struct nlattr *nl_reg_rule;
6108 const struct ieee80211_reg_rule *reg_rule;
6109 const struct ieee80211_freq_range *freq_range;
6110 const struct ieee80211_power_rule *power_rule;
97524820 6111 unsigned int max_bandwidth_khz;
f130347c 6112
458f4f9e 6113 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 6114 freq_range = &reg_rule->freq_range;
6115 power_rule = &reg_rule->power_rule;
6116
6117 nl_reg_rule = nla_nest_start(msg, i);
6118 if (!nl_reg_rule)
ad30ca2c 6119 goto nla_put_failure;
f130347c 6120
97524820
JD		 6121 max_bandwidth_khz = freq_range->max_bandwidth_khz;
6122 if (!max_bandwidth_khz)
6123 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
6124 reg_rule);
6125
9360ffd1
DM		 6126 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
6127 reg_rule->flags) ||
6128 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
6129 freq_range->start_freq_khz) ||
6130 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
6131 freq_range->end_freq_khz) ||
6132 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 6133 max_bandwidth_khz) ||
9360ffd1
DM		 6134 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
6135 power_rule->max_antenna_gain) ||
6136 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 6137 power_rule->max_eirp) ||
6138 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
6139 reg_rule->dfs_cac_ms))
ad30ca2c 6140 goto nla_put_failure;
f130347c
LR		 6141
6142 nla_nest_end(msg, nl_reg_rule);
6143 }
6144
6145 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 6146 return 0;
6147
6148nla_put_failure:
6149 return -EMSGSIZE;
6150}
6151
6152static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
6153{
6154 const struct ieee80211_regdomain *regdom = NULL;
6155 struct cfg80211_registered_device *rdev;
6156 struct wiphy *wiphy = NULL;
6157 struct sk_buff *msg;
6158 void *hdr;
6159
6160 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6161 if (!msg)
6162 return -ENOBUFS;
6163
6164 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6165 NL80211_CMD_GET_REG);
6166 if (!hdr)
6167 goto put_failure;
6168
6169 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 6170 bool self_managed;
6171
ad30ca2c
AN		 6172 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6173 if (IS_ERR(rdev)) {
6174 nlmsg_free(msg);
6175 return PTR_ERR(rdev);
6176 }
6177
6178 wiphy = &rdev->wiphy;
1bdd716c
AN		 6179 self_managed = wiphy->regulatory_flags &
6180 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 6181 regdom = get_wiphy_regdom(wiphy);
6182
1bdd716c
AN		 6183 /* a self-managed-reg device must have a private regdom */
6184 if (WARN_ON(!regdom && self_managed)) {
6185 nlmsg_free(msg);
6186 return -EINVAL;
6187 }
6188
ad30ca2c
AN		 6189 if (regdom &&
6190 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6191 goto nla_put_failure;
6192 }
6193
6194 if (!wiphy && reg_last_request_cell_base() &&
6195 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6196 NL80211_USER_REG_HINT_CELL_BASE))
6197 goto nla_put_failure;
6198
6199 rcu_read_lock();
6200
6201 if (!regdom)
6202 regdom = rcu_dereference(cfg80211_regdomain);
6203
6204 if (nl80211_put_regdom(regdom, msg))
6205 goto nla_put_failure_rcu;
6206
6207 rcu_read_unlock();
f130347c
LR		 6208
6209 genlmsg_end(msg, hdr);
5fe231e8 6210 return genlmsg_reply(msg, info);
f130347c 6211
458f4f9e
JB		 6212nla_put_failure_rcu:
6213 rcu_read_unlock();
f130347c
LR		 6214nla_put_failure:
6215 genlmsg_cancel(msg, hdr);
efe1cf0c 6216put_failure:
d080e275 6217 nlmsg_free(msg);
5fe231e8 6218 return -EMSGSIZE;
f130347c
LR		 6219}
6220
ad30ca2c
AN		 6221static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
6222 u32 seq, int flags, struct wiphy *wiphy,
6223 const struct ieee80211_regdomain *regdom)
6224{
6225 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6226 NL80211_CMD_GET_REG);
6227
6228 if (!hdr)
6229 return -1;
6230
6231 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6232
6233 if (nl80211_put_regdom(regdom, msg))
6234 goto nla_put_failure;
6235
6236 if (!wiphy && reg_last_request_cell_base() &&
6237 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6238 NL80211_USER_REG_HINT_CELL_BASE))
6239 goto nla_put_failure;
6240
6241 if (wiphy &&
6242 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6243 goto nla_put_failure;
6244
1bdd716c
AN		 6245 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
6246 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
6247 goto nla_put_failure;
6248
053c095a
JB		 6249 genlmsg_end(msg, hdr);
6250 return 0;
ad30ca2c
AN		 6251
6252nla_put_failure:
6253 genlmsg_cancel(msg, hdr);
6254 return -EMSGSIZE;
6255}
6256
6257static int nl80211_get_reg_dump(struct sk_buff *skb,
6258 struct netlink_callback *cb)
6259{
6260 const struct ieee80211_regdomain *regdom = NULL;
6261 struct cfg80211_registered_device *rdev;
6262 int err, reg_idx, start = cb->args[2];
6263
6264 rtnl_lock();
6265
6266 if (cfg80211_regdomain && start == 0) {
6267 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6268 NLM_F_MULTI, NULL,
6269 rtnl_dereference(cfg80211_regdomain));
6270 if (err < 0)
6271 goto out_err;
6272 }
6273
6274 /* the global regdom is idx 0 */
6275 reg_idx = 1;
6276 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
6277 regdom = get_wiphy_regdom(&rdev->wiphy);
6278 if (!regdom)
6279 continue;
6280
6281 if (++reg_idx <= start)
6282 continue;
6283
6284 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6285 NLM_F_MULTI, &rdev->wiphy, regdom);
6286 if (err < 0) {
6287 reg_idx--;
6288 break;
6289 }
6290 }
6291
6292 cb->args[2] = reg_idx;
6293 err = skb->len;
6294out_err:
6295 rtnl_unlock();
6296 return err;
6297}
6298
b6863036
JB		 6299#ifdef CONFIG_CFG80211_CRDA_SUPPORT
6300static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
6301 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6302 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6303 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6304 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6305 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6306 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6307 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
6308};
6309
6310static int parse_reg_rule(struct nlattr *tb[],
6311 struct ieee80211_reg_rule *reg_rule)
6312{
6313 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
6314 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
6315
6316 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
6317 return -EINVAL;
6318 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
6319 return -EINVAL;
6320 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
6321 return -EINVAL;
6322 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6323 return -EINVAL;
6324 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6325 return -EINVAL;
6326
6327 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
6328
6329 freq_range->start_freq_khz =
6330 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
6331 freq_range->end_freq_khz =
6332 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
6333 freq_range->max_bandwidth_khz =
6334 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
6335
6336 power_rule->max_eirp =
6337 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
6338
6339 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
6340 power_rule->max_antenna_gain =
6341 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
6342
6343 if (tb[NL80211_ATTR_DFS_CAC_TIME])
6344 reg_rule->dfs_cac_ms =
6345 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
6346
6347 return 0;
6348}
6349
b2e1b302
LR		 6350static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
6351{
6352 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
6353 struct nlattr *nl_reg_rule;
ea372c54
JB		 6354 char *alpha2;
6355 int rem_reg_rules, r;
b2e1b302 6356 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 6357 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 6358 struct ieee80211_regdomain *rd;
b2e1b302
LR		 6359
6360 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6361 return -EINVAL;
6362
6363 if (!info->attrs[NL80211_ATTR_REG_RULES])
6364 return -EINVAL;
6365
6366 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6367
8b60b078
LR		 6368 if (info->attrs[NL80211_ATTR_DFS_REGION])
6369 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
6370
b2e1b302 6371 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6372 rem_reg_rules) {
b2e1b302
LR		 6373 num_rules++;
6374 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 6375 return -EINVAL;
b2e1b302
LR		 6376 }
6377
e438768f
LR		 6378 if (!reg_is_valid_request(alpha2))
6379 return -EINVAL;
6380
b2e1b302 6381 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 6382 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 6383
6384 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 6385 if (!rd)
6386 return -ENOMEM;
b2e1b302
LR		 6387
6388 rd->n_reg_rules = num_rules;
6389 rd->alpha2[0] = alpha2[0];
6390 rd->alpha2[1] = alpha2[1];
6391
8b60b078
LR		 6392 /*
6393 * Disable DFS master mode if the DFS region was
6394 * not supported or known on this kernel.
6395 */
6396 if (reg_supported_dfs_region(dfs_region))
6397 rd->dfs_region = dfs_region;
6398
b2e1b302 6399 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6400 rem_reg_rules) {
bfe2c7b1
JB		 6401 r = nla_parse_nested(tb, NL80211_REG_RULE_ATTR_MAX,
6402 nl_reg_rule, reg_rule_policy);
ae811e21
JB		 6403 if (r)
6404 goto bad_reg;
b2e1b302
LR		 6405 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
6406 if (r)
6407 goto bad_reg;
6408
6409 rule_idx++;
6410
d0e18f83
LR		 6411 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
6412 r = -EINVAL;
b2e1b302 6413 goto bad_reg;
d0e18f83 6414 }
b2e1b302
LR		 6415 }
6416
06627990
JB		 6417 /* set_regdom takes ownership of rd */
6418 return set_regdom(rd, REGD_SOURCE_CRDA);
d2372b31 6419 bad_reg:
b2e1b302 6420 kfree(rd);
d0e18f83 6421 return r;
b2e1b302 6422}
b6863036 6423#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 6424
83f5e2cf
JB		 6425static int validate_scan_freqs(struct nlattr *freqs)
6426{
6427 struct nlattr *attr1, *attr2;
6428 int n_channels = 0, tmp1, tmp2;
6429
6430 nla_for_each_nested(attr1, freqs, tmp1) {
6431 n_channels++;
6432 /*
6433 * Some hardware has a limited channel list for
6434 * scanning, and it is pretty much nonsensical
6435 * to scan for a channel twice, so disallow that
6436 * and don't require drivers to check that the
6437 * channel list they get isn't longer than what
6438 * they can scan, as long as they can scan all
6439 * the channels they registered at once.
6440 */
6441 nla_for_each_nested(attr2, freqs, tmp2)
6442 if (attr1 != attr2 &&
6443 nla_get_u32(attr1) == nla_get_u32(attr2))
6444 return 0;
6445 }
6446
6447 return n_channels;
6448}
6449
57fbcce3 6450static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
38de03d2 6451{
57fbcce3 6452 return b < NUM_NL80211_BANDS && wiphy->bands[b];
38de03d2
AS		 6453}
6454
6455static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6456 struct cfg80211_bss_selection *bss_select)
6457{
6458 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6459 struct nlattr *nest;
6460 int err;
6461 bool found = false;
6462 int i;
6463
6464 /* only process one nested attribute */
6465 nest = nla_data(nla);
6466 if (!nla_ok(nest, nla_len(nest)))
6467 return -EINVAL;
6468
bfe2c7b1
JB		 6469 err = nla_parse_nested(attr, NL80211_BSS_SELECT_ATTR_MAX, nest,
6470 nl80211_bss_select_policy);
38de03d2
AS		 6471 if (err)
6472 return err;
6473
6474 /* only one attribute may be given */
6475 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6476 if (attr[i]) {
6477 if (found)
6478 return -EINVAL;
6479 found = true;
6480 }
6481 }
6482
6483 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6484
6485 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6486 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6487
6488 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6489 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6490 bss_select->param.band_pref =
6491 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6492 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6493 return -EINVAL;
6494 }
6495
6496 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6497 struct nl80211_bss_select_rssi_adjust *adj_param;
6498
6499 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6500 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6501 bss_select->param.adjust.band = adj_param->band;
6502 bss_select->param.adjust.delta = adj_param->delta;
6503 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6504 return -EINVAL;
6505 }
6506
6507 /* user-space did not provide behaviour attribute */
6508 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6509 return -EINVAL;
6510
6511 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6512 return -EINVAL;
6513
6514 return 0;
6515}
6516
ad2b26ab
JB		 6517static int nl80211_parse_random_mac(struct nlattr **attrs,
6518 u8 *mac_addr, u8 *mac_addr_mask)
6519{
6520 int i;
6521
6522 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 6523 eth_zero_addr(mac_addr);
6524 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 6525 mac_addr[0] = 0x2;
6526 mac_addr_mask[0] = 0x3;
6527
6528 return 0;
6529 }
6530
6531 /* need both or none */
6532 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6533 return -EINVAL;
6534
6535 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6536 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6537
6538 /* don't allow or configure an mcast address */
6539 if (!is_multicast_ether_addr(mac_addr_mask) ||
6540 is_multicast_ether_addr(mac_addr))
6541 return -EINVAL;
6542
6543 /*
6544 * allow users to pass a MAC address that has bits set outside
6545 * of the mask, but don't bother drivers with having to deal
6546 * with such bits
6547 */
6548 for (i = 0; i < ETH_ALEN; i++)
6549 mac_addr[i] &= mac_addr_mask[i];
6550
6551 return 0;
6552}
6553
2a519311
JB		 6554static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6555{
4c476991 6556 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 6557 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 6558 struct cfg80211_scan_request *request;
2a519311
JB		 6559 struct nlattr *attr;
6560 struct wiphy *wiphy;
83f5e2cf 6561 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 6562 size_t ie_len;
2a519311 6563
f4a11bb0
JB		 6564 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6565 return -EINVAL;
6566
79c97e97 6567 wiphy = &rdev->wiphy;
2a519311 6568
cb3b7d87
AB		 6569 if (wdev->iftype == NL80211_IFTYPE_NAN)
6570 return -EOPNOTSUPP;
6571
4c476991
JB		 6572 if (!rdev->ops->scan)
6573 return -EOPNOTSUPP;
2a519311 6574
f9d15d16 6575 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 6576 err = -EBUSY;
6577 goto unlock;
6578 }
2a519311
JB		 6579
6580 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 6581 n_channels = validate_scan_freqs(
6582 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 6583 if (!n_channels) {
6584 err = -EINVAL;
6585 goto unlock;
6586 }
2a519311 6587 } else {
bdfbec2d 6588 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 6589 }
6590
6591 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6592 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6593 n_ssids++;
6594
f9f47529
JB		 6595 if (n_ssids > wiphy->max_scan_ssids) {
6596 err = -EINVAL;
6597 goto unlock;
6598 }
2a519311 6599
70692ad2
JM		 6600 if (info->attrs[NL80211_ATTR_IE])
6601 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6602 else
6603 ie_len = 0;
6604
f9f47529
JB		 6605 if (ie_len > wiphy->max_scan_ie_len) {
6606 err = -EINVAL;
6607 goto unlock;
6608 }
18a83659 6609
2a519311 6610 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 6611 + sizeof(*request->ssids) * n_ssids
6612 + sizeof(*request->channels) * n_channels
70692ad2 6613 + ie_len, GFP_KERNEL);
f9f47529
JB		 6614 if (!request) {
6615 err = -ENOMEM;
6616 goto unlock;
6617 }
2a519311 6618
2a519311 6619 if (n_ssids)
5ba63533 6620 request->ssids = (void *)&request->channels[n_channels];
2a519311 6621 request->n_ssids = n_ssids;
70692ad2 6622 if (ie_len) {
13874e4b 6623 if (n_ssids)
70692ad2
JM		 6624 request->ie = (void *)(request->ssids + n_ssids);
6625 else
6626 request->ie = (void *)(request->channels + n_channels);
6627 }
2a519311 6628
584991dc 6629 i = 0;
2a519311
JB		 6630 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6631 /* user specified, bail out if channel not found */
2a519311 6632 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6633 struct ieee80211_channel *chan;
6634
6635 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6636
6637 if (!chan) {
2a519311
JB		 6638 err = -EINVAL;
6639 goto out_free;
6640 }
584991dc
JB		 6641
6642 /* ignore disabled channels */
6643 if (chan->flags & IEEE80211_CHAN_DISABLED)
6644 continue;
6645
6646 request->channels[i] = chan;
2a519311
JB		 6647 i++;
6648 }
6649 } else {
57fbcce3 6650 enum nl80211_band band;
34850ab2 6651
2a519311 6652 /* all channels */
57fbcce3 6653 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2a519311 6654 int j;
7a087e74 6655
2a519311
JB		 6656 if (!wiphy->bands[band])
6657 continue;
6658 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6659 struct ieee80211_channel *chan;
6660
6661 chan = &wiphy->bands[band]->channels[j];
6662
6663 if (chan->flags & IEEE80211_CHAN_DISABLED)
6664 continue;
6665
6666 request->channels[i] = chan;
2a519311
JB		 6667 i++;
6668 }
6669 }
6670 }
6671
584991dc
JB		 6672 if (!i) {
6673 err = -EINVAL;
6674 goto out_free;
6675 }
6676
6677 request->n_channels = i;
6678
2a519311 6679 i = 0;
13874e4b 6680 if (n_ssids) {
2a519311 6681 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6682 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6683 err = -EINVAL;
6684 goto out_free;
6685 }
57a27e1d 6686 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6687 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6688 i++;
6689 }
6690 }
6691
70692ad2
JM		 6692 if (info->attrs[NL80211_ATTR_IE]) {
6693 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6694 memcpy((void *)request->ie,
6695 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6696 request->ie_len);
6697 }
6698
57fbcce3 6699 for (i = 0; i < NUM_NL80211_BANDS; i++)
a401d2bb
JB		 6700 if (wiphy->bands[i])
6701 request->rates[i] =
6702 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6703
6704 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6705 nla_for_each_nested(attr,
6706 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6707 tmp) {
57fbcce3 6708 enum nl80211_band band = nla_type(attr);
34850ab2 6709
57fbcce3 6710 if (band < 0 || band >= NUM_NL80211_BANDS) {
34850ab2
JB		 6711 err = -EINVAL;
6712 goto out_free;
6713 }
1b09cd82
FF		 6714
6715 if (!wiphy->bands[band])
6716 continue;
6717
34850ab2
JB		 6718 err = ieee80211_get_ratemask(wiphy->bands[band],
6719 nla_data(attr),
6720 nla_len(attr),
6721 &request->rates[band]);
6722 if (err)
6723 goto out_free;
6724 }
6725 }
6726
1d76250b
AS		 6727 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6728 if (!wiphy_ext_feature_isset(wiphy,
6729 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6730 err = -EOPNOTSUPP;
6731 goto out_free;
6732 }
6733
6734 request->duration =
6735 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6736 request->duration_mandatory =
6737 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6738 }
6739
46856bbf 6740 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 6741 request->flags = nla_get_u32(
6742 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6743 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6744 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6745 err = -EOPNOTSUPP;
6746 goto out_free;
6747 }
ad2b26ab
JB		 6748
6749 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6750 if (!(wiphy->features &
6751 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6752 err = -EOPNOTSUPP;
6753 goto out_free;
6754 }
6755
6756 if (wdev->current_bss) {
6757 err = -EOPNOTSUPP;
6758 goto out_free;
6759 }
6760
6761 err = nl80211_parse_random_mac(info->attrs,
6762 request->mac_addr,
6763 request->mac_addr_mask);
6764 if (err)
6765 goto out_free;
6766 }
46856bbf 6767 }
ed473771 6768
e9f935e3
RM		 6769 request->no_cck =
6770 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6771
2fa436b3
VK		 6772 /* Initial implementation used NL80211_ATTR_MAC to set the specific
6773 * BSSID to scan for. This was problematic because that same attribute
6774 * was already used for another purpose (local random MAC address). The
6775 * NL80211_ATTR_BSSID attribute was added to fix this. For backwards
6776 * compatibility with older userspace components, also use the
6777 * NL80211_ATTR_MAC value here if it can be determined to be used for
6778 * the specific BSSID use case instead of the random MAC address
6779 * (NL80211_ATTR_SCAN_FLAGS is used to enable random MAC address use).
6780 */
6781 if (info->attrs[NL80211_ATTR_BSSID])
6782 memcpy(request->bssid,
6783 nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN);
6784 else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) &&
6785 info->attrs[NL80211_ATTR_MAC])
818965d3
JM		 6786 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6787 ETH_ALEN);
6788 else
6789 eth_broadcast_addr(request->bssid);
6790
fd014284 6791 request->wdev = wdev;
79c97e97 6792 request->wiphy = &rdev->wiphy;
15d6030b 6793 request->scan_start = jiffies;
2a519311 6794
79c97e97 6795 rdev->scan_req = request;
e35e4d28 6796 err = rdev_scan(rdev, request);
2a519311 6797
463d0183 6798 if (!err) {
fd014284
JB		 6799 nl80211_send_scan_start(rdev, wdev);
6800 if (wdev->netdev)
6801 dev_hold(wdev->netdev);
4c476991 6802 } else {
2a519311 6803 out_free:
79c97e97 6804 rdev->scan_req = NULL;
2a519311
JB		 6805 kfree(request);
6806 }
3b85875a 6807
f9f47529 6808 unlock:
2a519311
JB		 6809 return err;
6810}
6811
91d3ab46
VK		 6812static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6813{
6814 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6815 struct wireless_dev *wdev = info->user_ptr[1];
6816
6817 if (!rdev->ops->abort_scan)
6818 return -EOPNOTSUPP;
6819
6820 if (rdev->scan_msg)
6821 return 0;
6822
6823 if (!rdev->scan_req)
6824 return -ENOENT;
6825
6826 rdev_abort_scan(rdev, wdev);
6827 return 0;
6828}
6829
3b06d277
AS		 6830static int
6831nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6832 struct cfg80211_sched_scan_request *request,
6833 struct nlattr **attrs)
6834{
6835 int tmp, err, i = 0;
6836 struct nlattr *attr;
6837
6838 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6839 u32 interval;
6840
6841 /*
6842 * If scan plans are not specified,
5a88de53 6843 * %NL80211_ATTR_SCHED_SCAN_INTERVAL will be specified. In this
3b06d277
AS		 6844 * case one scan plan will be set with the specified scan
6845 * interval and infinite number of iterations.
6846 */
3b06d277
AS		 6847 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6848 if (!interval)
6849 return -EINVAL;
6850
6851 request->scan_plans[0].interval =
6852 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6853 if (!request->scan_plans[0].interval)
6854 return -EINVAL;
6855
6856 if (request->scan_plans[0].interval >
6857 wiphy->max_sched_scan_plan_interval)
6858 request->scan_plans[0].interval =
6859 wiphy->max_sched_scan_plan_interval;
6860
6861 return 0;
6862 }
6863
6864 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6865 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6866
6867 if (WARN_ON(i >= n_plans))
6868 return -EINVAL;
6869
bfe2c7b1
JB		 6870 err = nla_parse_nested(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6871 attr, nl80211_plan_policy);
3b06d277
AS		 6872 if (err)
6873 return err;
6874
6875 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6876 return -EINVAL;
6877
6878 request->scan_plans[i].interval =
6879 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6880 if (!request->scan_plans[i].interval ||
6881 request->scan_plans[i].interval >
6882 wiphy->max_sched_scan_plan_interval)
6883 return -EINVAL;
6884
6885 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6886 request->scan_plans[i].iterations =
6887 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6888 if (!request->scan_plans[i].iterations ||
6889 (request->scan_plans[i].iterations >
6890 wiphy->max_sched_scan_plan_iterations))
6891 return -EINVAL;
6892 } else if (i < n_plans - 1) {
6893 /*
6894 * All scan plans but the last one must specify
6895 * a finite number of iterations
6896 */
6897 return -EINVAL;
6898 }
6899
6900 i++;
6901 }
6902
6903 /*
6904 * The last scan plan must not specify the number of
6905 * iterations, it is supposed to run infinitely
6906 */
6907 if (request->scan_plans[n_plans - 1].iterations)
6908 return -EINVAL;
6909
6910 return 0;
6911}
6912
256da02d 6913static struct cfg80211_sched_scan_request *
ad2b26ab 6914nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 6915 struct nlattr **attrs)
807f8a8c
LC		 6916{
6917 struct cfg80211_sched_scan_request *request;
807f8a8c 6918 struct nlattr *attr;
3b06d277 6919 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
57fbcce3 6920 enum nl80211_band band;
807f8a8c 6921 size_t ie_len;
a1f1c21c 6922 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6923 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6924
256da02d
LC		 6925 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6926 return ERR_PTR(-EINVAL);
807f8a8c 6927
256da02d 6928 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6929 n_channels = validate_scan_freqs(
256da02d 6930 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6931 if (!n_channels)
256da02d 6932 return ERR_PTR(-EINVAL);
807f8a8c 6933 } else {
bdfbec2d 6934 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6935 }
6936
256da02d
LC		 6937 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6938 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6939 tmp)
6940 n_ssids++;
6941
93b6aa69 6942 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6943 return ERR_PTR(-EINVAL);
807f8a8c 6944
ea73cbce
JB		 6945 /*
6946 * First, count the number of 'real' matchsets. Due to an issue with
6947 * the old implementation, matchsets containing only the RSSI attribute
6948 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6949 * RSSI for all matchsets, rather than their own matchset for reporting
6950 * all APs with a strong RSSI. This is needed to be compatible with
6951 * older userspace that treated a matchset with only the RSSI as the
6952 * global RSSI for all other matchsets - if there are other matchsets.
6953 */
256da02d 6954 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6955 nla_for_each_nested(attr,
256da02d 6956 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6957 tmp) {
6958 struct nlattr *rssi;
6959
bfe2c7b1
JB		 6960 err = nla_parse_nested(tb,
6961 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6962 attr, nl80211_match_policy);
ea73cbce 6963 if (err)
256da02d 6964 return ERR_PTR(err);
ea73cbce
JB		 6965 /* add other standalone attributes here */
6966 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6967 n_match_sets++;
6968 continue;
6969 }
6970 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6971 if (rssi)
6972 default_match_rssi = nla_get_s32(rssi);
6973 }
6974 }
6975
6976 /* However, if there's no other matchset, add the RSSI one */
6977 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6978 n_match_sets = 1;
a1f1c21c
LC		 6979
6980 if (n_match_sets > wiphy->max_match_sets)
256da02d 6981 return ERR_PTR(-EINVAL);
a1f1c21c 6982
256da02d
LC		 6983 if (attrs[NL80211_ATTR_IE])
6984 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6985 else
6986 ie_len = 0;
6987
5a865bad 6988 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6989 return ERR_PTR(-EINVAL);
c10841ca 6990
3b06d277
AS		 6991 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6992 /*
6993 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6994 * each scan plan already specifies its own interval
6995 */
6996 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6997 return ERR_PTR(-EINVAL);
6998
6999 nla_for_each_nested(attr,
7000 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
7001 n_plans++;
7002 } else {
7003 /*
7004 * The scan interval attribute is kept for backward
7005 * compatibility. If no scan plans are specified and sched scan
7006 * interval is specified, one scan plan will be set with this
7007 * scan interval and infinite number of iterations.
7008 */
7009 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7010 return ERR_PTR(-EINVAL);
7011
7012 n_plans = 1;
7013 }
7014
7015 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
7016 return ERR_PTR(-EINVAL);
7017
bf95ecdb 7018 if (!wiphy_ext_feature_isset(
7019 wiphy, NL80211_EXT_FEATURE_SCHED_SCAN_RELATIVE_RSSI) &&
7020 (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] ||
7021 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]))
7022 return ERR_PTR(-EINVAL);
7023
807f8a8c 7024 request = kzalloc(sizeof(*request)
a2cd43c5 7025 + sizeof(*request->ssids) * n_ssids
a1f1c21c 7026 + sizeof(*request->match_sets) * n_match_sets
3b06d277 7027 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 7028 + sizeof(*request->channels) * n_channels
807f8a8c 7029 + ie_len, GFP_KERNEL);
256da02d
LC		 7030 if (!request)
7031 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 7032
7033 if (n_ssids)
7034 request->ssids = (void *)&request->channels[n_channels];
7035 request->n_ssids = n_ssids;
7036 if (ie_len) {
13874e4b 7037 if (n_ssids)
807f8a8c
LC		 7038 request->ie = (void *)(request->ssids + n_ssids);
7039 else
7040 request->ie = (void *)(request->channels + n_channels);
7041 }
7042
a1f1c21c
LC		 7043 if (n_match_sets) {
7044 if (request->ie)
7045 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 7046 else if (n_ssids)
a1f1c21c
LC		 7047 request->match_sets =
7048 (void *)(request->ssids + n_ssids);
7049 else
7050 request->match_sets =
7051 (void *)(request->channels + n_channels);
7052 }
7053 request->n_match_sets = n_match_sets;
7054
3b06d277
AS		 7055 if (n_match_sets)
7056 request->scan_plans = (void *)(request->match_sets +
7057 n_match_sets);
7058 else if (request->ie)
7059 request->scan_plans = (void *)(request->ie + ie_len);
7060 else if (n_ssids)
7061 request->scan_plans = (void *)(request->ssids + n_ssids);
7062 else
7063 request->scan_plans = (void *)(request->channels + n_channels);
7064
7065 request->n_scan_plans = n_plans;
7066
807f8a8c 7067 i = 0;
256da02d 7068 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 7069 /* user specified, bail out if channel not found */
7070 nla_for_each_nested(attr,
256da02d 7071 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 7072 tmp) {
7073 struct ieee80211_channel *chan;
7074
7075 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
7076
7077 if (!chan) {
7078 err = -EINVAL;
7079 goto out_free;
7080 }
7081
7082 /* ignore disabled channels */
7083 if (chan->flags & IEEE80211_CHAN_DISABLED)
7084 continue;
7085
7086 request->channels[i] = chan;
7087 i++;
7088 }
7089 } else {
7090 /* all channels */
57fbcce3 7091 for (band = 0; band < NUM_NL80211_BANDS; band++) {
807f8a8c 7092 int j;
7a087e74 7093
807f8a8c
LC		 7094 if (!wiphy->bands[band])
7095 continue;
7096 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
7097 struct ieee80211_channel *chan;
7098
7099 chan = &wiphy->bands[band]->channels[j];
7100
7101 if (chan->flags & IEEE80211_CHAN_DISABLED)
7102 continue;
7103
7104 request->channels[i] = chan;
7105 i++;
7106 }
7107 }
7108 }
7109
7110 if (!i) {
7111 err = -EINVAL;
7112 goto out_free;
7113 }
7114
7115 request->n_channels = i;
7116
7117 i = 0;
13874e4b 7118 if (n_ssids) {
256da02d 7119 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 7120 tmp) {
57a27e1d 7121 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 7122 err = -EINVAL;
7123 goto out_free;
7124 }
57a27e1d 7125 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 7126 memcpy(request->ssids[i].ssid, nla_data(attr),
7127 nla_len(attr));
807f8a8c
LC		 7128 i++;
7129 }
7130 }
7131
a1f1c21c 7132 i = 0;
256da02d 7133 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 7134 nla_for_each_nested(attr,
256da02d 7135 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 7136 tmp) {
88e920b4 7137 struct nlattr *ssid, *rssi;
a1f1c21c 7138
bfe2c7b1
JB		 7139 err = nla_parse_nested(tb,
7140 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
7141 attr, nl80211_match_policy);
ae811e21
JB		 7142 if (err)
7143 goto out_free;
4a4ab0d7 7144 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 7145 if (ssid) {
ea73cbce
JB		 7146 if (WARN_ON(i >= n_match_sets)) {
7147 /* this indicates a programming error,
7148 * the loop above should have verified
7149 * things properly
7150 */
7151 err = -EINVAL;
7152 goto out_free;
7153 }
7154
a1f1c21c
LC		 7155 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
7156 err = -EINVAL;
7157 goto out_free;
7158 }
7159 memcpy(request->match_sets[i].ssid.ssid,
7160 nla_data(ssid), nla_len(ssid));
7161 request->match_sets[i].ssid.ssid_len =
7162 nla_len(ssid);
56ab364f 7163 /* special attribute - old implementation w/a */
ea73cbce
JB		 7164 request->match_sets[i].rssi_thold =
7165 default_match_rssi;
7166 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7167 if (rssi)
7168 request->match_sets[i].rssi_thold =
7169 nla_get_s32(rssi);
a1f1c21c
LC		 7170 }
7171 i++;
7172 }
ea73cbce
JB		 7173
7174 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 7175 if (i == 0 && n_match_sets)
ea73cbce
JB		 7176 request->match_sets[0].rssi_thold = default_match_rssi;
7177
7178 request->min_rssi_thold = INT_MAX;
7179 for (i = 0; i < n_match_sets; i++)
7180 request->min_rssi_thold =
7181 min(request->match_sets[i].rssi_thold,
7182 request->min_rssi_thold);
7183 } else {
7184 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 7185 }
7186
9900e484
JB		 7187 if (ie_len) {
7188 request->ie_len = ie_len;
807f8a8c 7189 memcpy((void *)request->ie,
256da02d 7190 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 7191 request->ie_len);
7192 }
7193
256da02d 7194 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 7195 request->flags = nla_get_u32(
256da02d 7196 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 7197 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
7198 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 7199 err = -EOPNOTSUPP;
7200 goto out_free;
7201 }
ad2b26ab
JB		 7202
7203 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
7204 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
7205
7206 if (!wdev) /* must be net-detect */
7207 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
7208
7209 if (!(wiphy->features & flg)) {
7210 err = -EOPNOTSUPP;
7211 goto out_free;
7212 }
7213
7214 if (wdev && wdev->current_bss) {
7215 err = -EOPNOTSUPP;
7216 goto out_free;
7217 }
7218
7219 err = nl80211_parse_random_mac(attrs, request->mac_addr,
7220 request->mac_addr_mask);
7221 if (err)
7222 goto out_free;
7223 }
46856bbf 7224 }
ed473771 7225
9c748934
LC		 7226 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
7227 request->delay =
7228 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
7229
bf95ecdb 7230 if (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]) {
7231 request->relative_rssi = nla_get_s8(
7232 attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]);
7233 request->relative_rssi_set = true;
7234 }
7235
7236 if (request->relative_rssi_set &&
7237 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]) {
7238 struct nl80211_bss_select_rssi_adjust *rssi_adjust;
7239
7240 rssi_adjust = nla_data(
7241 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]);
7242 request->rssi_adjust.band = rssi_adjust->band;
7243 request->rssi_adjust.delta = rssi_adjust->delta;
7244 if (!is_band_valid(wiphy, request->rssi_adjust.band)) {
7245 err = -EINVAL;
7246 goto out_free;
7247 }
7248 }
7249
3b06d277
AS		 7250 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
7251 if (err)
7252 goto out_free;
7253
15d6030b 7254 request->scan_start = jiffies;
807f8a8c 7255
256da02d 7256 return request;
807f8a8c
LC		 7257
7258out_free:
7259 kfree(request);
256da02d
LC		 7260 return ERR_PTR(err);
7261}
7262
7263static int nl80211_start_sched_scan(struct sk_buff *skb,
7264 struct genl_info *info)
7265{
7266 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7267 struct net_device *dev = info->user_ptr[1];
ad2b26ab 7268 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 7269 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 7270 int err;
7271
7272 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
7273 !rdev->ops->sched_scan_start)
7274 return -EOPNOTSUPP;
7275
7276 if (rdev->sched_scan_req)
7277 return -EINPROGRESS;
7278
31a60ed1
JR		 7279 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
7280 info->attrs);
7281
7282 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 7283 if (err)
7284 goto out_err;
7285
31a60ed1 7286 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 7287 if (err)
7288 goto out_free;
7289
31a60ed1
JR		 7290 sched_scan_req->dev = dev;
7291 sched_scan_req->wiphy = &rdev->wiphy;
7292
93a1e86c
JR		 7293 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
7294 sched_scan_req->owner_nlportid = info->snd_portid;
7295
31a60ed1 7296 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 7297
7298 nl80211_send_sched_scan(rdev, dev,
7299 NL80211_CMD_START_SCHED_SCAN);
7300 return 0;
7301
7302out_free:
31a60ed1 7303 kfree(sched_scan_req);
256da02d 7304out_err:
807f8a8c
LC		 7305 return err;
7306}
7307
7308static int nl80211_stop_sched_scan(struct sk_buff *skb,
7309 struct genl_info *info)
7310{
7311 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7312
7313 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
7314 !rdev->ops->sched_scan_stop)
7315 return -EOPNOTSUPP;
7316
5fe231e8 7317 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 7318}
7319
04f39047
SW		 7320static int nl80211_start_radar_detection(struct sk_buff *skb,
7321 struct genl_info *info)
7322{
7323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7324 struct net_device *dev = info->user_ptr[1];
7325 struct wireless_dev *wdev = dev->ieee80211_ptr;
7326 struct cfg80211_chan_def chandef;
55f7435c 7327 enum nl80211_dfs_regions dfs_region;
31559f35 7328 unsigned int cac_time_ms;
04f39047
SW		 7329 int err;
7330
55f7435c
LR		 7331 dfs_region = reg_get_dfs_region(wdev->wiphy);
7332 if (dfs_region == NL80211_DFS_UNSET)
7333 return -EINVAL;
7334
04f39047
SW		 7335 err = nl80211_parse_chandef(rdev, info, &chandef);
7336 if (err)
7337 return err;
7338
ff311bc1
SW		 7339 if (netif_carrier_ok(dev))
7340 return -EBUSY;
7341
04f39047
SW		 7342 if (wdev->cac_started)
7343 return -EBUSY;
7344
2beb6dab 7345 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 7346 wdev->iftype);
04f39047
SW		 7347 if (err < 0)
7348 return err;
7349
7350 if (err == 0)
7351 return -EINVAL;
7352
fe7c3a1f 7353 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 7354 return -EINVAL;
7355
7356 if (!rdev->ops->start_radar_detection)
7357 return -EOPNOTSUPP;
7358
31559f35
JD		 7359 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
7360 if (WARN_ON(!cac_time_ms))
7361 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
7362
a1056b1b 7363 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 7364 if (!err) {
9e0e2961 7365 wdev->chandef = chandef;
04f39047
SW		 7366 wdev->cac_started = true;
7367 wdev->cac_start_time = jiffies;
31559f35 7368 wdev->cac_time_ms = cac_time_ms;
04f39047 7369 }
04f39047
SW		 7370 return err;
7371}
7372
16ef1fe2
SW		 7373static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
7374{
7375 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7376 struct net_device *dev = info->user_ptr[1];
7377 struct wireless_dev *wdev = dev->ieee80211_ptr;
7378 struct cfg80211_csa_settings params;
7379 /* csa_attrs is defined static to avoid waste of stack size - this
7380 * function is called under RTNL lock, so this should not be a problem.
7381 */
7382 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 7383 int err;
ee4bc9e7 7384 bool need_new_beacon = false;
9a774c78 7385 int len, i;
252e07ca 7386 u32 cs_count;
16ef1fe2
SW		 7387
7388 if (!rdev->ops->channel_switch ||
7389 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
7390 return -EOPNOTSUPP;
7391
ee4bc9e7
SW		 7392 switch (dev->ieee80211_ptr->iftype) {
7393 case NL80211_IFTYPE_AP:
7394 case NL80211_IFTYPE_P2P_GO:
7395 need_new_beacon = true;
7396
7397 /* useless if AP is not running */
7398 if (!wdev->beacon_interval)
1ff79dfa 7399 return -ENOTCONN;
ee4bc9e7
SW		 7400 break;
7401 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 7402 if (!wdev->ssid_len)
7403 return -ENOTCONN;
7404 break;
c6da674a 7405 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 7406 if (!wdev->mesh_id_len)
7407 return -ENOTCONN;
ee4bc9e7
SW		 7408 break;
7409 default:
16ef1fe2 7410 return -EOPNOTSUPP;
ee4bc9e7 7411 }
16ef1fe2
SW		 7412
7413 memset(&params, 0, sizeof(params));
7414
7415 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7416 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
7417 return -EINVAL;
7418
7419 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 7420 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 7421 return -EINVAL;
7422
252e07ca
LC		 7423 /* Even though the attribute is u32, the specification says
7424 * u8, so let's make sure we don't overflow.
7425 */
7426 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
7427 if (cs_count > 255)
7428 return -EINVAL;
7429
7430 params.count = cs_count;
16ef1fe2 7431
ee4bc9e7
SW		 7432 if (!need_new_beacon)
7433 goto skip_beacons;
7434
16ef1fe2
SW		 7435 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
7436 if (err)
7437 return err;
7438
7439 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
7440 info->attrs[NL80211_ATTR_CSA_IES],
7441 nl80211_policy);
7442 if (err)
7443 return err;
7444
7445 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
7446 if (err)
7447 return err;
7448
7449 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
7450 return -EINVAL;
7451
9a774c78
AO		 7452 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7453 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7454 return -EINVAL;
7455
9a774c78
AO		 7456 params.n_counter_offsets_beacon = len / sizeof(u16);
7457 if (rdev->wiphy.max_num_csa_counters &&
7458 (params.n_counter_offsets_beacon >
7459 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 7460 return -EINVAL;
7461
9a774c78
AO		 7462 params.counter_offsets_beacon =
7463 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7464
7465 /* sanity checks - counters should fit and be the same */
7466 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7467 u16 offset = params.counter_offsets_beacon[i];
7468
7469 if (offset >= params.beacon_csa.tail_len)
7470 return -EINVAL;
7471
7472 if (params.beacon_csa.tail[offset] != params.count)
7473 return -EINVAL;
7474 }
7475
16ef1fe2 7476 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 7477 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7478 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7479 return -EINVAL;
7480
9a774c78
AO		 7481 params.n_counter_offsets_presp = len / sizeof(u16);
7482 if (rdev->wiphy.max_num_csa_counters &&
ad5987b4 7483 (params.n_counter_offsets_presp >
9a774c78 7484 rdev->wiphy.max_num_csa_counters))
16ef1fe2 7485 return -EINVAL;
9a774c78
AO		 7486
7487 params.counter_offsets_presp =
7488 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7489
7490 /* sanity checks - counters should fit and be the same */
7491 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7492 u16 offset = params.counter_offsets_presp[i];
7493
7494 if (offset >= params.beacon_csa.probe_resp_len)
7495 return -EINVAL;
7496
7497 if (params.beacon_csa.probe_resp[offset] !=
7498 params.count)
7499 return -EINVAL;
7500 }
16ef1fe2
SW		 7501 }
7502
ee4bc9e7 7503skip_beacons:
16ef1fe2
SW		 7504 err = nl80211_parse_chandef(rdev, info, &params.chandef);
7505 if (err)
7506 return err;
7507
923b352f
AN		 7508 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
7509 wdev->iftype))
16ef1fe2
SW		 7510 return -EINVAL;
7511
2beb6dab
LC		 7512 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7513 &params.chandef,
7514 wdev->iftype);
7515 if (err < 0)
7516 return err;
7517
dcc6c2f5 7518 if (err > 0)
2beb6dab 7519 params.radar_required = true;
16ef1fe2 7520
16ef1fe2
SW		 7521 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7522 params.block_tx = true;
7523
c56589ed
SW		 7524 wdev_lock(wdev);
7525 err = rdev_channel_switch(rdev, dev, &params);
7526 wdev_unlock(wdev);
7527
7528 return err;
16ef1fe2
SW		 7529}
7530
9720bb3a
JB		 7531static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7532 u32 seq, int flags,
2a519311 7533 struct cfg80211_registered_device *rdev,
48ab905d
JB		 7534 struct wireless_dev *wdev,
7535 struct cfg80211_internal_bss *intbss)
2a519311 7536{
48ab905d 7537 struct cfg80211_bss *res = &intbss->pub;
9caf0364 7538 const struct cfg80211_bss_ies *ies;
2a519311
JB		 7539 void *hdr;
7540 struct nlattr *bss;
48ab905d
JB		 7541
7542 ASSERT_WDEV_LOCK(wdev);
2a519311 7543
15e47304 7544 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 7545 NL80211_CMD_NEW_SCAN_RESULTS);
7546 if (!hdr)
7547 return -1;
7548
9720bb3a
JB		 7549 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7550
97990a06
JB		 7551 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7552 goto nla_put_failure;
7553 if (wdev->netdev &&
9360ffd1
DM		 7554 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7555 goto nla_put_failure;
2dad624e
ND		 7556 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7557 NL80211_ATTR_PAD))
97990a06 7558 goto nla_put_failure;
2a519311
JB		 7559
7560 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7561 if (!bss)
7562 goto nla_put_failure;
9360ffd1 7563 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 7564 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 7565 goto nla_put_failure;
9caf0364
JB		 7566
7567 rcu_read_lock();
0e227084
JB		 7568 /* indicate whether we have probe response data or not */
7569 if (rcu_access_pointer(res->proberesp_ies) &&
7570 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7571 goto fail_unlock_rcu;
7572
7573 /* this pointer prefers to be pointed to probe response data
7574 * but is always valid
7575 */
9caf0364 7576 ies = rcu_dereference(res->ies);
8cef2c9d 7577 if (ies) {
2dad624e
ND		 7578 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7579 NL80211_BSS_PAD))
8cef2c9d 7580 goto fail_unlock_rcu;
8cef2c9d
JB		 7581 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7582 ies->len, ies->data))
7583 goto fail_unlock_rcu;
9caf0364 7584 }
0e227084
JB		 7585
7586 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 7587 ies = rcu_dereference(res->beacon_ies);
0e227084 7588 if (ies && ies->from_beacon) {
2dad624e
ND		 7589 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7590 NL80211_BSS_PAD))
8cef2c9d
JB		 7591 goto fail_unlock_rcu;
7592 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7593 ies->len, ies->data))
7594 goto fail_unlock_rcu;
9caf0364
JB		 7595 }
7596 rcu_read_unlock();
7597
9360ffd1
DM		 7598 if (res->beacon_interval &&
7599 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7600 goto nla_put_failure;
7601 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7602 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 7603 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 7604 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7605 jiffies_to_msecs(jiffies - intbss->ts)))
7606 goto nla_put_failure;
2a519311 7607
1d76250b
AS		 7608 if (intbss->parent_tsf &&
7609 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7610 intbss->parent_tsf, NL80211_BSS_PAD) ||
7611 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7612 intbss->parent_bssid)))
7613 goto nla_put_failure;
7614
6e19bc4b 7615 if (intbss->ts_boottime &&
2dad624e
ND		 7616 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7617 intbss->ts_boottime, NL80211_BSS_PAD))
6e19bc4b
DS		 7618 goto nla_put_failure;
7619
77965c97 7620 switch (rdev->wiphy.signal_type) {
2a519311 7621 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 7622 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7623 goto nla_put_failure;
2a519311
JB		 7624 break;
7625 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 7626 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7627 goto nla_put_failure;
2a519311
JB		 7628 break;
7629 default:
7630 break;
7631 }
7632
48ab905d 7633 switch (wdev->iftype) {
074ac8df 7634 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 7635 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 7636 if (intbss == wdev->current_bss &&
7637 nla_put_u32(msg, NL80211_BSS_STATUS,
7638 NL80211_BSS_STATUS_ASSOCIATED))
7639 goto nla_put_failure;
48ab905d
JB		 7640 break;
7641 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 7642 if (intbss == wdev->current_bss &&
7643 nla_put_u32(msg, NL80211_BSS_STATUS,
7644 NL80211_BSS_STATUS_IBSS_JOINED))
7645 goto nla_put_failure;
48ab905d
JB		 7646 break;
7647 default:
7648 break;
7649 }
7650
2a519311
JB		 7651 nla_nest_end(msg, bss);
7652
053c095a
JB		 7653 genlmsg_end(msg, hdr);
7654 return 0;
2a519311 7655
8cef2c9d
JB		 7656 fail_unlock_rcu:
7657 rcu_read_unlock();
2a519311
JB		 7658 nla_put_failure:
7659 genlmsg_cancel(msg, hdr);
7660 return -EMSGSIZE;
7661}
7662
97990a06 7663static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 7664{
48ab905d 7665 struct cfg80211_registered_device *rdev;
2a519311 7666 struct cfg80211_internal_bss *scan;
48ab905d 7667 struct wireless_dev *wdev;
97990a06 7668 int start = cb->args[2], idx = 0;
2a519311
JB		 7669 int err;
7670
97990a06 7671 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7672 if (err)
7673 return err;
2a519311 7674
48ab905d
JB		 7675 wdev_lock(wdev);
7676 spin_lock_bh(&rdev->bss_lock);
7677 cfg80211_bss_expire(rdev);
7678
9720bb3a
JB		 7679 cb->seq = rdev->bss_generation;
7680
48ab905d 7681 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 7682 if (++idx <= start)
7683 continue;
9720bb3a 7684 if (nl80211_send_bss(skb, cb,
2a519311 7685 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 7686 rdev, wdev, scan) < 0) {
2a519311 7687 idx--;
67748893 7688 break;
2a519311
JB		 7689 }
7690 }
7691
48ab905d
JB		 7692 spin_unlock_bh(&rdev->bss_lock);
7693 wdev_unlock(wdev);
2a519311 7694
97990a06
JB		 7695 cb->args[2] = idx;
7696 nl80211_finish_wdev_dump(rdev);
2a519311 7697
67748893 7698 return skb->len;
2a519311
JB		 7699}
7700
15e47304 7701static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7702 int flags, struct net_device *dev,
7703 bool allow_radio_stats,
7704 struct survey_info *survey)
61fa713c
HS		 7705{
7706 void *hdr;
7707 struct nlattr *infoattr;
7708
11f78ac3
JB		 7709 /* skip radio stats if userspace didn't request them */
7710 if (!survey->channel && !allow_radio_stats)
7711 return 0;
7712
15e47304 7713 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7714 NL80211_CMD_NEW_SURVEY_RESULTS);
7715 if (!hdr)
7716 return -ENOMEM;
7717
9360ffd1
DM		 7718 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7719 goto nla_put_failure;
61fa713c
HS		 7720
7721 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7722 if (!infoattr)
7723 goto nla_put_failure;
7724
11f78ac3
JB		 7725 if (survey->channel &&
7726 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7727 survey->channel->center_freq))
7728 goto nla_put_failure;
7729
7730 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7731 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7732 goto nla_put_failure;
7733 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7734 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7735 goto nla_put_failure;
4ed20beb 7736 if ((survey->filled & SURVEY_INFO_TIME) &&
2dad624e
ND		 7737 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7738 survey->time, NL80211_SURVEY_INFO_PAD))
9360ffd1 7739 goto nla_put_failure;
4ed20beb 7740 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
2dad624e
ND		 7741 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7742 survey->time_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7743 goto nla_put_failure;
4ed20beb 7744 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
2dad624e
ND		 7745 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7746 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7747 goto nla_put_failure;
4ed20beb 7748 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
2dad624e
ND		 7749 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7750 survey->time_rx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7751 goto nla_put_failure;
4ed20beb 7752 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
2dad624e
ND		 7753 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7754 survey->time_tx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7755 goto nla_put_failure;
052536ab 7756 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
2dad624e
ND		 7757 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7758 survey->time_scan, NL80211_SURVEY_INFO_PAD))
052536ab 7759 goto nla_put_failure;
61fa713c
HS		 7760
7761 nla_nest_end(msg, infoattr);
7762
053c095a
JB		 7763 genlmsg_end(msg, hdr);
7764 return 0;
61fa713c
HS		 7765
7766 nla_put_failure:
7767 genlmsg_cancel(msg, hdr);
7768 return -EMSGSIZE;
7769}
7770
11f78ac3 7771static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c 7772{
c90c39da 7773 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
61fa713c 7774 struct survey_info survey;
1b8ec87a 7775 struct cfg80211_registered_device *rdev;
97990a06
JB		 7776 struct wireless_dev *wdev;
7777 int survey_idx = cb->args[2];
61fa713c 7778 int res;
11f78ac3 7779 bool radio_stats;
61fa713c 7780
1b8ec87a 7781 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7782 if (res)
7783 return res;
61fa713c 7784
11f78ac3 7785 /* prepare_wdev_dump parsed the attributes */
c90c39da 7786 radio_stats = attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
11f78ac3 7787
97990a06
JB		 7788 if (!wdev->netdev) {
7789 res = -EINVAL;
7790 goto out_err;
7791 }
7792
1b8ec87a 7793 if (!rdev->ops->dump_survey) {
61fa713c
HS		 7794 res = -EOPNOTSUPP;
7795 goto out_err;
7796 }
7797
7798 while (1) {
1b8ec87a 7799 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 7800 if (res == -ENOENT)
7801 break;
7802 if (res)
7803 goto out_err;
7804
11f78ac3
JB		 7805 /* don't send disabled channels, but do send non-channel data */
7806 if (survey.channel &&
7807 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 7808 survey_idx++;
7809 continue;
7810 }
7811
61fa713c 7812 if (nl80211_send_survey(skb,
15e47304 7813 NETLINK_CB(cb->skb).portid,
61fa713c 7814 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 7815 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 7816 goto out;
7817 survey_idx++;
7818 }
7819
7820 out:
97990a06 7821 cb->args[2] = survey_idx;
61fa713c
HS		 7822 res = skb->len;
7823 out_err:
1b8ec87a 7824 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 7825 return res;
7826}
7827
b23aa676
SO		 7828static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7829{
7830 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7831 NL80211_WPA_VERSION_2));
7832}
7833
636a5d36
JM		 7834static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7835{
4c476991
JB		 7836 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7837 struct net_device *dev = info->user_ptr[1];
19957bb3 7838 struct ieee80211_channel *chan;
11b6b5a4
JM		 7839 const u8 *bssid, *ssid, *ie = NULL, *auth_data = NULL;
7840 int err, ssid_len, ie_len = 0, auth_data_len = 0;
19957bb3 7841 enum nl80211_auth_type auth_type;
fffd0934 7842 struct key_parse key;
d5cdfacb 7843 bool local_state_change;
636a5d36 7844
f4a11bb0
JB		 7845 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7846 return -EINVAL;
7847
7848 if (!info->attrs[NL80211_ATTR_MAC])
7849 return -EINVAL;
7850
1778092e
JM		 7851 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7852 return -EINVAL;
7853
19957bb3
JB		 7854 if (!info->attrs[NL80211_ATTR_SSID])
7855 return -EINVAL;
7856
7857 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7858 return -EINVAL;
7859
fffd0934
JB		 7860 err = nl80211_parse_key(info, &key);
7861 if (err)
7862 return err;
7863
7864 if (key.idx >= 0) {
e31b8213
JB		 7865 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7866 return -EINVAL;
fffd0934
JB		 7867 if (!key.p.key || !key.p.key_len)
7868 return -EINVAL;
7869 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7870 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7871 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7872 key.p.key_len != WLAN_KEY_LEN_WEP104))
7873 return -EINVAL;
b6b5555b 7874 if (key.idx > 3)
fffd0934
JB		 7875 return -EINVAL;
7876 } else {
7877 key.p.key_len = 0;
7878 key.p.key = NULL;
7879 }
7880
afea0b7a
JB		 7881 if (key.idx >= 0) {
7882 int i;
7883 bool ok = false;
7a087e74 7884
afea0b7a
JB		 7885 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7886 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7887 ok = true;
7888 break;
7889 }
7890 }
4c476991
JB		 7891 if (!ok)
7892 return -EINVAL;
afea0b7a
JB		 7893 }
7894
4c476991
JB		 7895 if (!rdev->ops->auth)
7896 return -EOPNOTSUPP;
636a5d36 7897
074ac8df 7898 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7899 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7900 return -EOPNOTSUPP;
eec60b03 7901
19957bb3 7902 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7903 chan = nl80211_get_valid_chan(&rdev->wiphy,
7904 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7905 if (!chan)
4c476991 7906 return -EINVAL;
636a5d36 7907
19957bb3
JB		 7908 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7909 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7910
7911 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7912 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7913 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7914 }
7915
19957bb3 7916 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7917 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7918 return -EINVAL;
636a5d36 7919
63181060
JM		 7920 if ((auth_type == NL80211_AUTHTYPE_SAE ||
7921 auth_type == NL80211_AUTHTYPE_FILS_SK ||
7922 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
7923 auth_type == NL80211_AUTHTYPE_FILS_PK) &&
11b6b5a4 7924 !info->attrs[NL80211_ATTR_AUTH_DATA])
e39e5b5e
JM		 7925 return -EINVAL;
7926
11b6b5a4 7927 if (info->attrs[NL80211_ATTR_AUTH_DATA]) {
63181060
JM		 7928 if (auth_type != NL80211_AUTHTYPE_SAE &&
7929 auth_type != NL80211_AUTHTYPE_FILS_SK &&
7930 auth_type != NL80211_AUTHTYPE_FILS_SK_PFS &&
7931 auth_type != NL80211_AUTHTYPE_FILS_PK)
e39e5b5e 7932 return -EINVAL;
11b6b5a4
JM		 7933 auth_data = nla_data(info->attrs[NL80211_ATTR_AUTH_DATA]);
7934 auth_data_len = nla_len(info->attrs[NL80211_ATTR_AUTH_DATA]);
e39e5b5e 7935 /* need to include at least Auth Transaction and Status Code */
11b6b5a4 7936 if (auth_data_len < 4)
e39e5b5e
JM		 7937 return -EINVAL;
7938 }
7939
d5cdfacb
JM		 7940 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7941
95de817b
JB		 7942 /*
7943 * Since we no longer track auth state, ignore
7944 * requests to only change local state.
7945 */
7946 if (local_state_change)
7947 return 0;
7948
91bf9b26
JB		 7949 wdev_lock(dev->ieee80211_ptr);
7950 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7951 ssid, ssid_len, ie, ie_len,
7952 key.p.key, key.p.key_len, key.idx,
11b6b5a4 7953 auth_data, auth_data_len);
91bf9b26
JB		 7954 wdev_unlock(dev->ieee80211_ptr);
7955 return err;
636a5d36
JM		 7956}
7957
c0692b8f
JB		 7958static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7959 struct genl_info *info,
3dc27d25
JB		 7960 struct cfg80211_crypto_settings *settings,
7961 int cipher_limit)
b23aa676 7962{
c0b2bbd8
JB		 7963 memset(settings, 0, sizeof(*settings));
7964
b23aa676
SO		 7965 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7966
c0692b8f
JB		 7967 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7968 u16 proto;
7a087e74 7969
c0692b8f
JB		 7970 proto = nla_get_u16(
7971 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7972 settings->control_port_ethertype = cpu_to_be16(proto);
7973 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7974 proto != ETH_P_PAE)
7975 return -EINVAL;
7976 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7977 settings->control_port_no_encrypt = true;
7978 } else
7979 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7980
b23aa676
SO		 7981 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7982 void *data;
7983 int len, i;
7984
7985 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7986 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7987 settings->n_ciphers_pairwise = len / sizeof(u32);
7988
7989 if (len % sizeof(u32))
7990 return -EINVAL;
7991
3dc27d25 7992 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 7993 return -EINVAL;
7994
7995 memcpy(settings->ciphers_pairwise, data, len);
7996
7997 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 7998 if (!cfg80211_supported_cipher_suite(
7999 &rdev->wiphy,
b23aa676
SO		 8000 settings->ciphers_pairwise[i]))
8001 return -EINVAL;
8002 }
8003
8004 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
8005 settings->cipher_group =
8006 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 8007 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
8008 settings->cipher_group))
b23aa676
SO		 8009 return -EINVAL;
8010 }
8011
8012 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
8013 settings->wpa_versions =
8014 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
8015 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
8016 return -EINVAL;
8017 }
8018
8019 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
8020 void *data;
6d30240e 8021 int len;
b23aa676
SO		 8022
8023 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
8024 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
8025 settings->n_akm_suites = len / sizeof(u32);
8026
8027 if (len % sizeof(u32))
8028 return -EINVAL;
8029
1b9ca027
JM		 8030 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
8031 return -EINVAL;
8032
b23aa676 8033 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 8034 }
8035
8036 return 0;
8037}
8038
636a5d36
JM		 8039static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
8040{
4c476991
JB		 8041 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8042 struct net_device *dev = info->user_ptr[1];
f444de05 8043 struct ieee80211_channel *chan;
f62fab73
JB		 8044 struct cfg80211_assoc_request req = {};
8045 const u8 *bssid, *ssid;
8046 int err, ssid_len = 0;
636a5d36 8047
f4a11bb0
JB		 8048 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8049 return -EINVAL;
8050
8051 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 8052 !info->attrs[NL80211_ATTR_SSID] ||
8053 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 8054 return -EINVAL;
8055
4c476991
JB		 8056 if (!rdev->ops->assoc)
8057 return -EOPNOTSUPP;
636a5d36 8058
074ac8df 8059 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8060 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8061 return -EOPNOTSUPP;
eec60b03 8062
19957bb3 8063 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8064
664834de
JM		 8065 chan = nl80211_get_valid_chan(&rdev->wiphy,
8066 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8067 if (!chan)
4c476991 8068 return -EINVAL;
636a5d36 8069
19957bb3
JB		 8070 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8071 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 8072
8073 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 8074 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8075 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8076 }
8077
dc6382ce 8078 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 8079 enum nl80211_mfp mfp =
dc6382ce 8080 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 8081 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 8082 req.use_mfp = true;
4c476991
JB		 8083 else if (mfp != NL80211_MFP_NO)
8084 return -EINVAL;
dc6382ce
JM		 8085 }
8086
3e5d7649 8087 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 8088 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 8089
7e7c8926 8090 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 8091 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 8092
8093 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 8094 memcpy(&req.ht_capa_mask,
8095 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8096 sizeof(req.ht_capa_mask));
7e7c8926
BG		 8097
8098 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 8099 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 8100 return -EINVAL;
f62fab73
JB		 8101 memcpy(&req.ht_capa,
8102 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8103 sizeof(req.ht_capa));
7e7c8926
BG		 8104 }
8105
ee2aca34 8106 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 8107 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 8108
8109 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 8110 memcpy(&req.vht_capa_mask,
8111 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8112 sizeof(req.vht_capa_mask));
ee2aca34
JB		 8113
8114 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 8115 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 8116 return -EINVAL;
f62fab73
JB		 8117 memcpy(&req.vht_capa,
8118 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8119 sizeof(req.vht_capa));
ee2aca34
JB		 8120 }
8121
bab5ab7d 8122 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8123 if (!((rdev->wiphy.features &
8124 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8125 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8126 !wiphy_ext_feature_isset(&rdev->wiphy,
8127 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 8128 return -EINVAL;
8129 req.flags |= ASSOC_REQ_USE_RRM;
8130 }
8131
348bd456
JM		 8132 if (info->attrs[NL80211_ATTR_FILS_KEK]) {
8133 req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
8134 req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
8135 if (!info->attrs[NL80211_ATTR_FILS_NONCES])
8136 return -EINVAL;
8137 req.fils_nonces =
8138 nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
8139 }
8140
f62fab73 8141 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 8142 if (!err) {
8143 wdev_lock(dev->ieee80211_ptr);
bd2522b1 8144
f62fab73
JB		 8145 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
8146 ssid, ssid_len, &req);
bd2522b1
AZ		 8147
8148 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8149 dev->ieee80211_ptr->conn_owner_nlportid =
8150 info->snd_portid;
8151 memcpy(dev->ieee80211_ptr->disconnect_bssid,
8152 bssid, ETH_ALEN);
8153 }
8154
91bf9b26
JB		 8155 wdev_unlock(dev->ieee80211_ptr);
8156 }
636a5d36 8157
636a5d36
JM		 8158 return err;
8159}
8160
8161static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
8162{
4c476991
JB		 8163 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8164 struct net_device *dev = info->user_ptr[1];
19957bb3 8165 const u8 *ie = NULL, *bssid;
91bf9b26 8166 int ie_len = 0, err;
19957bb3 8167 u16 reason_code;
d5cdfacb 8168 bool local_state_change;
636a5d36 8169
f4a11bb0
JB		 8170 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8171 return -EINVAL;
8172
8173 if (!info->attrs[NL80211_ATTR_MAC])
8174 return -EINVAL;
8175
8176 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8177 return -EINVAL;
8178
4c476991
JB		 8179 if (!rdev->ops->deauth)
8180 return -EOPNOTSUPP;
636a5d36 8181
074ac8df 8182 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8183 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8184 return -EOPNOTSUPP;
eec60b03 8185
19957bb3 8186 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8187
19957bb3
JB		 8188 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8189 if (reason_code == 0) {
f4a11bb0 8190 /* Reason Code 0 is reserved */
4c476991 8191 return -EINVAL;
255e737e 8192 }
636a5d36
JM		 8193
8194 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8195 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8196 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8197 }
8198
d5cdfacb
JM		 8199 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8200
91bf9b26
JB		 8201 wdev_lock(dev->ieee80211_ptr);
8202 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
8203 local_state_change);
8204 wdev_unlock(dev->ieee80211_ptr);
8205 return err;
636a5d36
JM		 8206}
8207
8208static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
8209{
4c476991
JB		 8210 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8211 struct net_device *dev = info->user_ptr[1];
19957bb3 8212 const u8 *ie = NULL, *bssid;
91bf9b26 8213 int ie_len = 0, err;
19957bb3 8214 u16 reason_code;
d5cdfacb 8215 bool local_state_change;
636a5d36 8216
f4a11bb0
JB		 8217 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8218 return -EINVAL;
8219
8220 if (!info->attrs[NL80211_ATTR_MAC])
8221 return -EINVAL;
8222
8223 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8224 return -EINVAL;
8225
4c476991
JB		 8226 if (!rdev->ops->disassoc)
8227 return -EOPNOTSUPP;
636a5d36 8228
074ac8df 8229 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8230 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8231 return -EOPNOTSUPP;
eec60b03 8232
19957bb3 8233 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8234
19957bb3
JB		 8235 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8236 if (reason_code == 0) {
f4a11bb0 8237 /* Reason Code 0 is reserved */
4c476991 8238 return -EINVAL;
255e737e 8239 }
636a5d36
JM		 8240
8241 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8242 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8243 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8244 }
8245
d5cdfacb
JM		 8246 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8247
91bf9b26
JB		 8248 wdev_lock(dev->ieee80211_ptr);
8249 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
8250 local_state_change);
8251 wdev_unlock(dev->ieee80211_ptr);
8252 return err;
636a5d36
JM		 8253}
8254
dd5b4cc7
FF		 8255static bool
8256nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
57fbcce3 8257 int mcast_rate[NUM_NL80211_BANDS],
dd5b4cc7
FF		 8258 int rateval)
8259{
8260 struct wiphy *wiphy = &rdev->wiphy;
8261 bool found = false;
8262 int band, i;
8263
57fbcce3 8264 for (band = 0; band < NUM_NL80211_BANDS; band++) {
dd5b4cc7
FF		 8265 struct ieee80211_supported_band *sband;
8266
8267 sband = wiphy->bands[band];
8268 if (!sband)
8269 continue;
8270
8271 for (i = 0; i < sband->n_bitrates; i++) {
8272 if (sband->bitrates[i].bitrate == rateval) {
8273 mcast_rate[band] = i + 1;
8274 found = true;
8275 break;
8276 }
8277 }
8278 }
8279
8280 return found;
8281}
8282
04a773ad
JB		 8283static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
8284{
4c476991
JB		 8285 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8286 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 8287 struct cfg80211_ibss_params ibss;
8288 struct wiphy *wiphy;
fffd0934 8289 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 8290 int err;
8291
8e30bc55
JB		 8292 memset(&ibss, 0, sizeof(ibss));
8293
04a773ad
JB		 8294 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8295 return -EINVAL;
8296
683b6d3b 8297 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 8298 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8299 return -EINVAL;
8300
8e30bc55
JB		 8301 ibss.beacon_interval = 100;
8302
12d20fc9 8303 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8e30bc55
JB		 8304 ibss.beacon_interval =
8305 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9 8306
0c317a02
PK		 8307 err = cfg80211_validate_beacon_int(rdev, NL80211_IFTYPE_ADHOC,
8308 ibss.beacon_interval);
12d20fc9
PK		 8309 if (err)
8310 return err;
8e30bc55 8311
4c476991
JB		 8312 if (!rdev->ops->join_ibss)
8313 return -EOPNOTSUPP;
04a773ad 8314
4c476991
JB		 8315 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8316 return -EOPNOTSUPP;
04a773ad 8317
79c97e97 8318 wiphy = &rdev->wiphy;
04a773ad 8319
39193498 8320 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 8321 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 8322
8323 if (!is_valid_ether_addr(ibss.bssid))
8324 return -EINVAL;
8325 }
04a773ad
JB		 8326 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8327 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8328
8329 if (info->attrs[NL80211_ATTR_IE]) {
8330 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8331 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8332 }
8333
683b6d3b
JB		 8334 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
8335 if (err)
8336 return err;
04a773ad 8337
174e0cd2
IP		 8338 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
8339 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 8340 return -EINVAL;
8341
2f301ab2 8342 switch (ibss.chandef.width) {
bf372645
SW		 8343 case NL80211_CHAN_WIDTH_5:
8344 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 8345 case NL80211_CHAN_WIDTH_20_NOHT:
8346 break;
8347 case NL80211_CHAN_WIDTH_20:
8348 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 8349 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8350 return -EINVAL;
8351 break;
8352 case NL80211_CHAN_WIDTH_80:
8353 case NL80211_CHAN_WIDTH_80P80:
8354 case NL80211_CHAN_WIDTH_160:
8355 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8356 return -EINVAL;
8357 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8358 NL80211_EXT_FEATURE_VHT_IBSS))
8359 return -EINVAL;
8360 break;
2f301ab2 8361 default:
c04d6150 8362 return -EINVAL;
2f301ab2 8363 }
db9c64cf 8364
04a773ad 8365 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 8366 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
8367
fbd2c8dc
TP		 8368 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8369 u8 *rates =
8370 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8371 int n_rates =
8372 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8373 struct ieee80211_supported_band *sband =
683b6d3b 8374 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 8375
34850ab2
JB		 8376 err = ieee80211_get_ratemask(sband, rates, n_rates,
8377 &ibss.basic_rates);
8378 if (err)
8379 return err;
fbd2c8dc 8380 }
dd5b4cc7 8381
803768f5
SW		 8382 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8383 memcpy(&ibss.ht_capa_mask,
8384 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8385 sizeof(ibss.ht_capa_mask));
8386
8387 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8388 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8389 return -EINVAL;
8390 memcpy(&ibss.ht_capa,
8391 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8392 sizeof(ibss.ht_capa));
8393 }
8394
dd5b4cc7
FF		 8395 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8396 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
8397 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8398 return -EINVAL;
fbd2c8dc 8399
4c476991 8400 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 8401 bool no_ht = false;
8402
4c476991 8403 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 8404 info->attrs[NL80211_ATTR_KEYS],
8405 &no_ht);
4c476991
JB		 8406 if (IS_ERR(connkeys))
8407 return PTR_ERR(connkeys);
de7044ee 8408
3d9d1d66
JB		 8409 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
8410 no_ht) {
5e950a78 8411 kzfree(connkeys);
de7044ee
SM		 8412 return -EINVAL;
8413 }
4c476991 8414 }
04a773ad 8415
267335d6
AQ		 8416 ibss.control_port =
8417 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
8418
5336fa88
SW		 8419 ibss.userspace_handles_dfs =
8420 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
8421
4c476991 8422 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 8423 if (err)
b47f610b 8424 kzfree(connkeys);
04a773ad
JB		 8425 return err;
8426}
8427
8428static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
8429{
4c476991
JB		 8430 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8431 struct net_device *dev = info->user_ptr[1];
04a773ad 8432
4c476991
JB		 8433 if (!rdev->ops->leave_ibss)
8434 return -EOPNOTSUPP;
04a773ad 8435
4c476991
JB		 8436 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8437 return -EOPNOTSUPP;
04a773ad 8438
4c476991 8439 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 8440}
8441
f4e583c8
AQ		 8442static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
8443{
8444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8445 struct net_device *dev = info->user_ptr[1];
57fbcce3 8446 int mcast_rate[NUM_NL80211_BANDS];
f4e583c8
AQ		 8447 u32 nla_rate;
8448 int err;
8449
8450 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 8451 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
8452 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 8453 return -EOPNOTSUPP;
8454
8455 if (!rdev->ops->set_mcast_rate)
8456 return -EOPNOTSUPP;
8457
8458 memset(mcast_rate, 0, sizeof(mcast_rate));
8459
8460 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
8461 return -EINVAL;
8462
8463 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
8464 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
8465 return -EINVAL;
8466
a1056b1b 8467 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 8468
8469 return err;
8470}
8471
ad7e718c
JB		 8472static struct sk_buff *
8473__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 8474 struct wireless_dev *wdev, int approxlen,
8475 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 8476 enum nl80211_attrs attr,
8477 const struct nl80211_vendor_cmd_info *info,
8478 gfp_t gfp)
ad7e718c
JB		 8479{
8480 struct sk_buff *skb;
8481 void *hdr;
8482 struct nlattr *data;
8483
8484 skb = nlmsg_new(approxlen + 100, gfp);
8485 if (!skb)
8486 return NULL;
8487
8488 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
8489 if (!hdr) {
8490 kfree_skb(skb);
8491 return NULL;
8492 }
8493
8494 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
8495 goto nla_put_failure;
567ffc35
JB		 8496
8497 if (info) {
8498 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
8499 info->vendor_id))
8500 goto nla_put_failure;
8501 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
8502 info->subcmd))
8503 goto nla_put_failure;
8504 }
8505
6c09e791 8506 if (wdev) {
2dad624e
ND		 8507 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
8508 wdev_id(wdev), NL80211_ATTR_PAD))
6c09e791
AK		 8509 goto nla_put_failure;
8510 if (wdev->netdev &&
8511 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
8512 wdev->netdev->ifindex))
8513 goto nla_put_failure;
8514 }
8515
ad7e718c 8516 data = nla_nest_start(skb, attr);
76e1fb4b
JB		 8517 if (!data)
8518 goto nla_put_failure;
ad7e718c
JB		 8519
8520 ((void **)skb->cb)[0] = rdev;
8521 ((void **)skb->cb)[1] = hdr;
8522 ((void **)skb->cb)[2] = data;
8523
8524 return skb;
8525
8526 nla_put_failure:
8527 kfree_skb(skb);
8528 return NULL;
8529}
f4e583c8 8530
e03ad6ea 8531struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 8532 struct wireless_dev *wdev,
e03ad6ea
JB		 8533 enum nl80211_commands cmd,
8534 enum nl80211_attrs attr,
8535 int vendor_event_idx,
8536 int approxlen, gfp_t gfp)
8537{
f26cbf40 8538 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 8539 const struct nl80211_vendor_cmd_info *info;
8540
8541 switch (cmd) {
8542 case NL80211_CMD_TESTMODE:
8543 if (WARN_ON(vendor_event_idx != -1))
8544 return NULL;
8545 info = NULL;
8546 break;
8547 case NL80211_CMD_VENDOR:
8548 if (WARN_ON(vendor_event_idx < 0 ||
8549 vendor_event_idx >= wiphy->n_vendor_events))
8550 return NULL;
8551 info = &wiphy->vendor_events[vendor_event_idx];
8552 break;
8553 default:
8554 WARN_ON(1);
8555 return NULL;
8556 }
8557
6c09e791 8558 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 8559 cmd, attr, info, gfp);
8560}
8561EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8562
8563void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8564{
8565 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8566 void *hdr = ((void **)skb->cb)[1];
8567 struct nlattr *data = ((void **)skb->cb)[2];
8568 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8569
bd8c78e7
JB		 8570 /* clear CB data for netlink core to own from now on */
8571 memset(skb->cb, 0, sizeof(skb->cb));
8572
e03ad6ea
JB		 8573 nla_nest_end(skb, data);
8574 genlmsg_end(skb, hdr);
8575
8576 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8577 mcgrp = NL80211_MCGRP_VENDOR;
8578
8579 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8580 mcgrp, gfp);
8581}
8582EXPORT_SYMBOL(__cfg80211_send_event_skb);
8583
aff89a9b 8584#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 8585static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8586{
4c476991 8587 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 8588 struct wireless_dev *wdev =
8589 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 8590 int err;
8591
fc73f11f
DS		 8592 if (!rdev->ops->testmode_cmd)
8593 return -EOPNOTSUPP;
8594
8595 if (IS_ERR(wdev)) {
8596 err = PTR_ERR(wdev);
8597 if (err != -EINVAL)
8598 return err;
8599 wdev = NULL;
8600 } else if (wdev->wiphy != &rdev->wiphy) {
8601 return -EINVAL;
8602 }
8603
aff89a9b
JB		 8604 if (!info->attrs[NL80211_ATTR_TESTDATA])
8605 return -EINVAL;
8606
ad7e718c 8607 rdev->cur_cmd_info = info;
fc73f11f 8608 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 8609 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8610 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 8611 rdev->cur_cmd_info = NULL;
aff89a9b 8612
aff89a9b
JB		 8613 return err;
8614}
8615
71063f0e
WYG		 8616static int nl80211_testmode_dump(struct sk_buff *skb,
8617 struct netlink_callback *cb)
8618{
00918d33 8619 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 8620 int err;
8621 long phy_idx;
8622 void *data = NULL;
8623 int data_len = 0;
8624
5fe231e8
JB		 8625 rtnl_lock();
8626
71063f0e
WYG		 8627 if (cb->args[0]) {
8628 /*
8629 * 0 is a valid index, but not valid for args[0],
8630 * so we need to offset by 1.
8631 */
8632 phy_idx = cb->args[0] - 1;
a4956dca
LC		 8633
8634 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8635 if (!rdev) {
8636 err = -ENOENT;
8637 goto out_err;
8638 }
71063f0e 8639 } else {
c90c39da
JB		 8640 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
8641
71063f0e 8642 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
c90c39da 8643 attrbuf, nl80211_fam.maxattr, nl80211_policy);
71063f0e 8644 if (err)
5fe231e8 8645 goto out_err;
00918d33 8646
c90c39da 8647 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
2bd7e35d 8648 if (IS_ERR(rdev)) {
5fe231e8
JB		 8649 err = PTR_ERR(rdev);
8650 goto out_err;
00918d33 8651 }
2bd7e35d 8652 phy_idx = rdev->wiphy_idx;
2bd7e35d 8653
c90c39da
JB		 8654 if (attrbuf[NL80211_ATTR_TESTDATA])
8655 cb->args[1] = (long)attrbuf[NL80211_ATTR_TESTDATA];
71063f0e
WYG		 8656 }
8657
8658 if (cb->args[1]) {
8659 data = nla_data((void *)cb->args[1]);
8660 data_len = nla_len((void *)cb->args[1]);
8661 }
8662
00918d33 8663 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 8664 err = -EOPNOTSUPP;
8665 goto out_err;
8666 }
8667
8668 while (1) {
15e47304 8669 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 8670 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8671 NL80211_CMD_TESTMODE);
8672 struct nlattr *tmdata;
8673
cb35fba3
DC		 8674 if (!hdr)
8675 break;
8676
9360ffd1 8677 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 8678 genlmsg_cancel(skb, hdr);
8679 break;
8680 }
8681
8682 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8683 if (!tmdata) {
8684 genlmsg_cancel(skb, hdr);
8685 break;
8686 }
e35e4d28 8687 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 8688 nla_nest_end(skb, tmdata);
8689
8690 if (err == -ENOBUFS || err == -ENOENT) {
8691 genlmsg_cancel(skb, hdr);
8692 break;
8693 } else if (err) {
8694 genlmsg_cancel(skb, hdr);
8695 goto out_err;
8696 }
8697
8698 genlmsg_end(skb, hdr);
8699 }
8700
8701 err = skb->len;
8702 /* see above */
8703 cb->args[0] = phy_idx + 1;
8704 out_err:
5fe231e8 8705 rtnl_unlock();
71063f0e
WYG		 8706 return err;
8707}
aff89a9b
JB		 8708#endif
8709
b23aa676
SO		 8710static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8711{
4c476991
JB		 8712 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8713 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 8714 struct cfg80211_connect_params connect;
8715 struct wiphy *wiphy;
fffd0934 8716 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 8717 int err;
8718
8719 memset(&connect, 0, sizeof(connect));
8720
8721 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8722 return -EINVAL;
8723
8724 if (!info->attrs[NL80211_ATTR_SSID] ||
8725 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8726 return -EINVAL;
8727
8728 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8729 connect.auth_type =
8730 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8731 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8732 NL80211_CMD_CONNECT))
b23aa676
SO		 8733 return -EINVAL;
8734 } else
8735 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8736
8737 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8738
c0692b8f 8739 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8740 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8741 if (err)
8742 return err;
b23aa676 8743
074ac8df 8744 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8745 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8746 return -EOPNOTSUPP;
b23aa676 8747
79c97e97 8748 wiphy = &rdev->wiphy;
b23aa676 8749
4486ea98
BS		 8750 connect.bg_scan_period = -1;
8751 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8752 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8753 connect.bg_scan_period =
8754 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8755 }
8756
b23aa676
SO		 8757 if (info->attrs[NL80211_ATTR_MAC])
8758 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8759 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8760 connect.bssid_hint =
8761 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8762 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8763 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8764
8765 if (info->attrs[NL80211_ATTR_IE]) {
8766 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8767 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8768 }
8769
cee00a95
JM		 8770 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8771 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8772 if (connect.mfp != NL80211_MFP_REQUIRED &&
8773 connect.mfp != NL80211_MFP_NO)
8774 return -EINVAL;
8775 } else {
8776 connect.mfp = NL80211_MFP_NO;
8777 }
8778
ba6fbacf
JM		 8779 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8780 connect.prev_bssid =
8781 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8782
b23aa676 8783 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 8784 connect.channel = nl80211_get_valid_chan(
8785 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8786 if (!connect.channel)
1df4a510
JM		 8787 return -EINVAL;
8788 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 8789 connect.channel_hint = nl80211_get_valid_chan(
8790 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8791 if (!connect.channel_hint)
4c476991 8792 return -EINVAL;
b23aa676
SO		 8793 }
8794
fffd0934
JB		 8795 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8796 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 8797 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 8798 if (IS_ERR(connkeys))
8799 return PTR_ERR(connkeys);
fffd0934
JB		 8800 }
8801
7e7c8926
BG		 8802 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8803 connect.flags |= ASSOC_REQ_DISABLE_HT;
8804
8805 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8806 memcpy(&connect.ht_capa_mask,
8807 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8808 sizeof(connect.ht_capa_mask));
8809
8810 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 8811 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 8812 kzfree(connkeys);
7e7c8926 8813 return -EINVAL;
b4e4f47e 8814 }
7e7c8926
BG		 8815 memcpy(&connect.ht_capa,
8816 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8817 sizeof(connect.ht_capa));
8818 }
8819
ee2aca34
JB		 8820 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8821 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8822
8823 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8824 memcpy(&connect.vht_capa_mask,
8825 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8826 sizeof(connect.vht_capa_mask));
8827
8828 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8829 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 8830 kzfree(connkeys);
ee2aca34
JB		 8831 return -EINVAL;
8832 }
8833 memcpy(&connect.vht_capa,
8834 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8835 sizeof(connect.vht_capa));
8836 }
8837
bab5ab7d 8838 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8839 if (!((rdev->wiphy.features &
8840 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8841 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8842 !wiphy_ext_feature_isset(&rdev->wiphy,
8843 NL80211_EXT_FEATURE_RRM)) {
707554b4 8844 kzfree(connkeys);
bab5ab7d 8845 return -EINVAL;
707554b4 8846 }
bab5ab7d
AK		 8847 connect.flags |= ASSOC_REQ_USE_RRM;
8848 }
8849
34d50519 8850 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 8851 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
34d50519
LD		 8852 kzfree(connkeys);
8853 return -EOPNOTSUPP;
8854 }
8855
38de03d2
AS		 8856 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8857 /* bss selection makes no sense if bssid is set */
8858 if (connect.bssid) {
8859 kzfree(connkeys);
8860 return -EINVAL;
8861 }
8862
8863 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8864 wiphy, &connect.bss_select);
8865 if (err) {
8866 kzfree(connkeys);
8867 return err;
8868 }
8869 }
8870
83739b03 8871 wdev_lock(dev->ieee80211_ptr);
bd2522b1 8872
4ce2bd9c
JM		 8873 err = cfg80211_connect(rdev, dev, &connect, connkeys,
8874 connect.prev_bssid);
fffd0934 8875 if (err)
b47f610b 8876 kzfree(connkeys);
bd2522b1
AZ		 8877
8878 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8879 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
8880 if (connect.bssid)
8881 memcpy(dev->ieee80211_ptr->disconnect_bssid,
8882 connect.bssid, ETH_ALEN);
8883 else
8884 memset(dev->ieee80211_ptr->disconnect_bssid,
8885 0, ETH_ALEN);
8886 }
8887
8888 wdev_unlock(dev->ieee80211_ptr);
8889
b23aa676
SO		 8890 return err;
8891}
8892
088e8df8 8893static int nl80211_update_connect_params(struct sk_buff *skb,
8894 struct genl_info *info)
8895{
8896 struct cfg80211_connect_params connect = {};
8897 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8898 struct net_device *dev = info->user_ptr[1];
8899 struct wireless_dev *wdev = dev->ieee80211_ptr;
8900 u32 changed = 0;
8901 int ret;
8902
8903 if (!rdev->ops->update_connect_params)
8904 return -EOPNOTSUPP;
8905
8906 if (info->attrs[NL80211_ATTR_IE]) {
8907 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8908 return -EINVAL;
8909 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8910 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8911 changed |= UPDATE_ASSOC_IES;
8912 }
8913
8914 wdev_lock(dev->ieee80211_ptr);
8915 if (!wdev->current_bss)
8916 ret = -ENOLINK;
8917 else
8918 ret = rdev_update_connect_params(rdev, dev, &connect, changed);
8919 wdev_unlock(dev->ieee80211_ptr);
8920
8921 return ret;
8922}
8923
b23aa676
SO		 8924static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8925{
4c476991
JB		 8926 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8927 struct net_device *dev = info->user_ptr[1];
b23aa676 8928 u16 reason;
83739b03 8929 int ret;
b23aa676
SO		 8930
8931 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8932 reason = WLAN_REASON_DEAUTH_LEAVING;
8933 else
8934 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8935
8936 if (reason == 0)
8937 return -EINVAL;
8938
074ac8df 8939 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8940 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8941 return -EOPNOTSUPP;
b23aa676 8942
83739b03
JB		 8943 wdev_lock(dev->ieee80211_ptr);
8944 ret = cfg80211_disconnect(rdev, dev, reason, true);
8945 wdev_unlock(dev->ieee80211_ptr);
8946 return ret;
b23aa676
SO		 8947}
8948
463d0183
JB		 8949static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8950{
4c476991 8951 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 8952 struct net *net;
8953 int err;
463d0183 8954
4b681c82
VK		 8955 if (info->attrs[NL80211_ATTR_PID]) {
8956 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8957
8958 net = get_net_ns_by_pid(pid);
8959 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8960 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 8961
4b681c82
VK		 8962 net = get_net_ns_by_fd(fd);
8963 } else {
8964 return -EINVAL;
8965 }
463d0183 8966
4c476991
JB		 8967 if (IS_ERR(net))
8968 return PTR_ERR(net);
463d0183
JB		 8969
8970 err = 0;
8971
8972 /* check if anything to do */
4c476991
JB		 8973 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8974 err = cfg80211_switch_netns(rdev, net);
463d0183 8975
463d0183 8976 put_net(net);
463d0183
JB		 8977 return err;
8978}
8979
67fbb16b
SO		 8980static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8981{
4c476991 8982 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 8983 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8984 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 8985 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 8986 struct cfg80211_pmksa pmksa;
8987
8988 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8989
8990 if (!info->attrs[NL80211_ATTR_MAC])
8991 return -EINVAL;
8992
8993 if (!info->attrs[NL80211_ATTR_PMKID])
8994 return -EINVAL;
8995
67fbb16b
SO		 8996 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8997 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8998
074ac8df 8999 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9000 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9001 return -EOPNOTSUPP;
67fbb16b
SO		 9002
9003 switch (info->genlhdr->cmd) {
9004 case NL80211_CMD_SET_PMKSA:
9005 rdev_ops = rdev->ops->set_pmksa;
9006 break;
9007 case NL80211_CMD_DEL_PMKSA:
9008 rdev_ops = rdev->ops->del_pmksa;
9009 break;
9010 default:
9011 WARN_ON(1);
9012 break;
9013 }
9014
4c476991
JB		 9015 if (!rdev_ops)
9016 return -EOPNOTSUPP;
67fbb16b 9017
4c476991 9018 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 9019}
9020
9021static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
9022{
4c476991
JB		 9023 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9024 struct net_device *dev = info->user_ptr[1];
67fbb16b 9025
074ac8df 9026 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9027 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9028 return -EOPNOTSUPP;
67fbb16b 9029
4c476991
JB		 9030 if (!rdev->ops->flush_pmksa)
9031 return -EOPNOTSUPP;
67fbb16b 9032
e35e4d28 9033 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 9034}
9035
109086ce
AN		 9036static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
9037{
9038 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9039 struct net_device *dev = info->user_ptr[1];
9040 u8 action_code, dialog_token;
df942e7b 9041 u32 peer_capability = 0;
109086ce
AN		 9042 u16 status_code;
9043 u8 *peer;
31fa97c5 9044 bool initiator;
109086ce
AN		 9045
9046 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9047 !rdev->ops->tdls_mgmt)
9048 return -EOPNOTSUPP;
9049
9050 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
9051 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
9052 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
9053 !info->attrs[NL80211_ATTR_IE] ||
9054 !info->attrs[NL80211_ATTR_MAC])
9055 return -EINVAL;
9056
9057 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9058 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
9059 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
9060 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 9061 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 9062 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
9063 peer_capability =
9064 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 9065
e35e4d28 9066 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 9067 dialog_token, status_code, peer_capability,
31fa97c5 9068 initiator,
e35e4d28
HG		 9069 nla_data(info->attrs[NL80211_ATTR_IE]),
9070 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 9071}
9072
9073static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
9074{
9075 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9076 struct net_device *dev = info->user_ptr[1];
9077 enum nl80211_tdls_operation operation;
9078 u8 *peer;
9079
9080 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9081 !rdev->ops->tdls_oper)
9082 return -EOPNOTSUPP;
9083
9084 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
9085 !info->attrs[NL80211_ATTR_MAC])
9086 return -EINVAL;
9087
9088 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
9089 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9090
e35e4d28 9091 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 9092}
9093
9588bbd5
JM		 9094static int nl80211_remain_on_channel(struct sk_buff *skb,
9095 struct genl_info *info)
9096{
4c476991 9097 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9098 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 9099 struct cfg80211_chan_def chandef;
9588bbd5
JM		 9100 struct sk_buff *msg;
9101 void *hdr;
9102 u64 cookie;
683b6d3b 9103 u32 duration;
9588bbd5
JM		 9104 int err;
9105
9106 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
9107 !info->attrs[NL80211_ATTR_DURATION])
9108 return -EINVAL;
9109
9110 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9111
ebf348fc
JB		 9112 if (!rdev->ops->remain_on_channel ||
9113 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
9114 return -EOPNOTSUPP;
9115
9588bbd5 9116 /*
ebf348fc
JB		 9117 * We should be on that channel for at least a minimum amount of
9118 * time (10ms) but no longer than the driver supports.
9588bbd5 9119 */
ebf348fc 9120 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 9121 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 9122 return -EINVAL;
9123
683b6d3b
JB		 9124 err = nl80211_parse_chandef(rdev, info, &chandef);
9125 if (err)
9126 return err;
9588bbd5
JM		 9127
9128 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9129 if (!msg)
9130 return -ENOMEM;
9588bbd5 9131
15e47304 9132 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 9133 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 9134 if (!hdr) {
9135 err = -ENOBUFS;
9588bbd5
JM		 9136 goto free_msg;
9137 }
9138
683b6d3b
JB		 9139 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
9140 duration, &cookie);
9588bbd5
JM		 9141
9142 if (err)
9143 goto free_msg;
9144
2dad624e
ND		 9145 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9146 NL80211_ATTR_PAD))
9360ffd1 9147 goto nla_put_failure;
9588bbd5
JM		 9148
9149 genlmsg_end(msg, hdr);
4c476991
JB		 9150
9151 return genlmsg_reply(msg, info);
9588bbd5
JM		 9152
9153 nla_put_failure:
9154 err = -ENOBUFS;
9155 free_msg:
9156 nlmsg_free(msg);
9588bbd5
JM		 9157 return err;
9158}
9159
9160static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
9161 struct genl_info *info)
9162{
4c476991 9163 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9164 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 9165 u64 cookie;
9588bbd5
JM		 9166
9167 if (!info->attrs[NL80211_ATTR_COOKIE])
9168 return -EINVAL;
9169
4c476991
JB		 9170 if (!rdev->ops->cancel_remain_on_channel)
9171 return -EOPNOTSUPP;
9588bbd5 9172
9588bbd5
JM		 9173 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9174
e35e4d28 9175 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 9176}
9177
13ae75b1
JM		 9178static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
9179 struct genl_info *info)
9180{
13ae75b1 9181 struct cfg80211_bitrate_mask mask;
a7c7fbff 9182 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9183 struct net_device *dev = info->user_ptr[1];
a7c7fbff 9184 int err;
13ae75b1 9185
4c476991
JB		 9186 if (!rdev->ops->set_bitrate_mask)
9187 return -EOPNOTSUPP;
13ae75b1 9188
a7c7fbff
PK		 9189 err = nl80211_parse_tx_bitrate_mask(info, &mask);
9190 if (err)
9191 return err;
13ae75b1 9192
e35e4d28 9193 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 9194}
9195
2e161f78 9196static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9197{
4c476991 9198 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9199 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 9200 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 9201
9202 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
9203 return -EINVAL;
9204
2e161f78
JB		 9205 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
9206 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 9207
71bbc994
JB		 9208 switch (wdev->iftype) {
9209 case NL80211_IFTYPE_STATION:
9210 case NL80211_IFTYPE_ADHOC:
9211 case NL80211_IFTYPE_P2P_CLIENT:
9212 case NL80211_IFTYPE_AP:
9213 case NL80211_IFTYPE_AP_VLAN:
9214 case NL80211_IFTYPE_MESH_POINT:
9215 case NL80211_IFTYPE_P2P_GO:
98104fde 9216 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9217 break;
cb3b7d87 9218 case NL80211_IFTYPE_NAN:
71bbc994 9219 default:
4c476991 9220 return -EOPNOTSUPP;
71bbc994 9221 }
026331c4
JM		 9222
9223 /* not much point in registering if we can't reply */
4c476991
JB		 9224 if (!rdev->ops->mgmt_tx)
9225 return -EOPNOTSUPP;
026331c4 9226
15e47304 9227 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 9228 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
9229 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 9230}
9231
2e161f78 9232static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9233{
4c476991 9234 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9235 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 9236 struct cfg80211_chan_def chandef;
026331c4 9237 int err;
d64d373f 9238 void *hdr = NULL;
026331c4 9239 u64 cookie;
e247bd90 9240 struct sk_buff *msg = NULL;
b176e629
AO		 9241 struct cfg80211_mgmt_tx_params params = {
9242 .dont_wait_for_ack =
9243 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
9244 };
026331c4 9245
683b6d3b 9246 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 9247 return -EINVAL;
9248
4c476991
JB		 9249 if (!rdev->ops->mgmt_tx)
9250 return -EOPNOTSUPP;
026331c4 9251
71bbc994 9252 switch (wdev->iftype) {
ea141b75
AQ		 9253 case NL80211_IFTYPE_P2P_DEVICE:
9254 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
9255 return -EINVAL;
71bbc994
JB		 9256 case NL80211_IFTYPE_STATION:
9257 case NL80211_IFTYPE_ADHOC:
9258 case NL80211_IFTYPE_P2P_CLIENT:
9259 case NL80211_IFTYPE_AP:
9260 case NL80211_IFTYPE_AP_VLAN:
9261 case NL80211_IFTYPE_MESH_POINT:
9262 case NL80211_IFTYPE_P2P_GO:
9263 break;
cb3b7d87 9264 case NL80211_IFTYPE_NAN:
71bbc994 9265 default:
4c476991 9266 return -EOPNOTSUPP;
71bbc994 9267 }
026331c4 9268
f7ca38df 9269 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 9270 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 9271 return -EINVAL;
b176e629 9272 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 9273
9274 /*
9275 * We should wait on the channel for at least a minimum amount
9276 * of time (10ms) but no longer than the driver supports.
9277 */
b176e629
AO		 9278 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9279 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc 9280 return -EINVAL;
f7ca38df
JB		 9281 }
9282
b176e629 9283 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 9284
b176e629 9285 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 9286 return -EINVAL;
9287
b176e629 9288 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 9289
ea141b75
AQ		 9290 /* get the channel if any has been specified, otherwise pass NULL to
9291 * the driver. The latter will use the current one
9292 */
9293 chandef.chan = NULL;
9294 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9295 err = nl80211_parse_chandef(rdev, info, &chandef);
9296 if (err)
9297 return err;
9298 }
9299
b176e629 9300 if (!chandef.chan && params.offchan)
ea141b75 9301 return -EINVAL;
026331c4 9302
34d22ce2
AO		 9303 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
9304 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
9305
9306 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
9307 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9308 int i;
9309
9310 if (len % sizeof(u16))
9311 return -EINVAL;
9312
9313 params.n_csa_offsets = len / sizeof(u16);
9314 params.csa_offsets =
9315 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9316
9317 /* check that all the offsets fit the frame */
9318 for (i = 0; i < params.n_csa_offsets; i++) {
9319 if (params.csa_offsets[i] >= params.len)
9320 return -EINVAL;
9321 }
9322 }
9323
b176e629 9324 if (!params.dont_wait_for_ack) {
e247bd90
JB		 9325 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9326 if (!msg)
9327 return -ENOMEM;
026331c4 9328
15e47304 9329 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 9330 NL80211_CMD_FRAME);
cb35fba3
DC		 9331 if (!hdr) {
9332 err = -ENOBUFS;
e247bd90
JB		 9333 goto free_msg;
9334 }
026331c4 9335 }
e247bd90 9336
b176e629
AO		 9337 params.chan = chandef.chan;
9338 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 9339 if (err)
9340 goto free_msg;
9341
e247bd90 9342 if (msg) {
2dad624e
ND		 9343 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9344 NL80211_ATTR_PAD))
9360ffd1 9345 goto nla_put_failure;
026331c4 9346
e247bd90
JB		 9347 genlmsg_end(msg, hdr);
9348 return genlmsg_reply(msg, info);
9349 }
9350
9351 return 0;
026331c4
JM		 9352
9353 nla_put_failure:
9354 err = -ENOBUFS;
9355 free_msg:
9356 nlmsg_free(msg);
026331c4
JM		 9357 return err;
9358}
9359
f7ca38df
JB		 9360static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
9361{
9362 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9363 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 9364 u64 cookie;
9365
9366 if (!info->attrs[NL80211_ATTR_COOKIE])
9367 return -EINVAL;
9368
9369 if (!rdev->ops->mgmt_tx_cancel_wait)
9370 return -EOPNOTSUPP;
9371
71bbc994
JB		 9372 switch (wdev->iftype) {
9373 case NL80211_IFTYPE_STATION:
9374 case NL80211_IFTYPE_ADHOC:
9375 case NL80211_IFTYPE_P2P_CLIENT:
9376 case NL80211_IFTYPE_AP:
9377 case NL80211_IFTYPE_AP_VLAN:
9378 case NL80211_IFTYPE_P2P_GO:
98104fde 9379 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9380 break;
cb3b7d87 9381 case NL80211_IFTYPE_NAN:
71bbc994 9382 default:
f7ca38df 9383 return -EOPNOTSUPP;
71bbc994 9384 }
f7ca38df
JB		 9385
9386 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9387
e35e4d28 9388 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 9389}
9390
ffb9eb3d
KV		 9391static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9392{
4c476991 9393 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 9394 struct wireless_dev *wdev;
4c476991 9395 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9396 u8 ps_state;
9397 bool state;
9398 int err;
9399
4c476991
JB		 9400 if (!info->attrs[NL80211_ATTR_PS_STATE])
9401 return -EINVAL;
ffb9eb3d
KV		 9402
9403 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9404
4c476991
JB		 9405 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9406 return -EINVAL;
ffb9eb3d
KV		 9407
9408 wdev = dev->ieee80211_ptr;
9409
4c476991
JB		 9410 if (!rdev->ops->set_power_mgmt)
9411 return -EOPNOTSUPP;
ffb9eb3d
KV		 9412
9413 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9414
9415 if (state == wdev->ps)
4c476991 9416 return 0;
ffb9eb3d 9417
e35e4d28 9418 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 9419 if (!err)
9420 wdev->ps = state;
ffb9eb3d
KV		 9421 return err;
9422}
9423
9424static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9425{
4c476991 9426 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 9427 enum nl80211_ps_state ps_state;
9428 struct wireless_dev *wdev;
4c476991 9429 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9430 struct sk_buff *msg;
9431 void *hdr;
9432 int err;
9433
ffb9eb3d
KV		 9434 wdev = dev->ieee80211_ptr;
9435
4c476991
JB		 9436 if (!rdev->ops->set_power_mgmt)
9437 return -EOPNOTSUPP;
ffb9eb3d
KV		 9438
9439 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9440 if (!msg)
9441 return -ENOMEM;
ffb9eb3d 9442
15e47304 9443 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 9444 NL80211_CMD_GET_POWER_SAVE);
9445 if (!hdr) {
4c476991 9446 err = -ENOBUFS;
ffb9eb3d
KV		 9447 goto free_msg;
9448 }
9449
9450 if (wdev->ps)
9451 ps_state = NL80211_PS_ENABLED;
9452 else
9453 ps_state = NL80211_PS_DISABLED;
9454
9360ffd1
DM		 9455 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9456 goto nla_put_failure;
ffb9eb3d
KV		 9457
9458 genlmsg_end(msg, hdr);
4c476991 9459 return genlmsg_reply(msg, info);
ffb9eb3d 9460
4c476991 9461 nla_put_failure:
ffb9eb3d 9462 err = -ENOBUFS;
4c476991 9463 free_msg:
ffb9eb3d 9464 nlmsg_free(msg);
ffb9eb3d
KV		 9465 return err;
9466}
9467
94e860f1
JB		 9468static const struct nla_policy
9469nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 9470 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
9471 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9472 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 9473 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9474 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9475 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 9476};
9477
84f10708 9478static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 9479 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 9480{
9481 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 9482 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9483 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 9484
d9d8b019 9485 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 9486 return -EINVAL;
9487
84f10708
TP		 9488 if (!rdev->ops->set_cqm_txe_config)
9489 return -EOPNOTSUPP;
9490
9491 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9492 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9493 return -EOPNOTSUPP;
9494
e35e4d28 9495 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 9496}
9497
d6dc1a38
JO		 9498static int nl80211_set_cqm_rssi(struct genl_info *info,
9499 s32 threshold, u32 hysteresis)
9500{
4c476991 9501 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9502 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9503 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 9504
9505 if (threshold > 0)
9506 return -EINVAL;
9507
1da5fcc8
JB		 9508 /* disabling - hysteresis should also be zero then */
9509 if (threshold == 0)
9510 hysteresis = 0;
d6dc1a38 9511
4c476991
JB		 9512 if (!rdev->ops->set_cqm_rssi_config)
9513 return -EOPNOTSUPP;
d6dc1a38 9514
074ac8df 9515 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9516 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9517 return -EOPNOTSUPP;
d6dc1a38 9518
e35e4d28 9519 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 9520}
9521
9522static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9523{
9524 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9525 struct nlattr *cqm;
9526 int err;
9527
9528 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 9529 if (!cqm)
9530 return -EINVAL;
d6dc1a38
JO		 9531
9532 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
9533 nl80211_attr_cqm_policy);
9534 if (err)
1da5fcc8 9535 return err;
d6dc1a38
JO		 9536
9537 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9538 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 9539 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9540 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 9541
1da5fcc8
JB		 9542 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
9543 }
9544
9545 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9546 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9547 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9548 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9549 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9550 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9551
9552 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9553 }
9554
9555 return -EINVAL;
d6dc1a38
JO		 9556}
9557
6e0bd6c3
RL		 9558static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9559{
9560 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9561 struct net_device *dev = info->user_ptr[1];
9562 struct ocb_setup setup = {};
9563 int err;
9564
9565 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9566 if (err)
9567 return err;
9568
9569 return cfg80211_join_ocb(rdev, dev, &setup);
9570}
9571
9572static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9573{
9574 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9575 struct net_device *dev = info->user_ptr[1];
9576
9577 return cfg80211_leave_ocb(rdev, dev);
9578}
9579
29cbe68c
JB		 9580static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9581{
9582 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9583 struct net_device *dev = info->user_ptr[1];
9584 struct mesh_config cfg;
c80d545d 9585 struct mesh_setup setup;
29cbe68c
JB		 9586 int err;
9587
9588 /* start with default */
9589 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9590 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9591
24bdd9f4 9592 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9593 /* and parse parameters if given */
24bdd9f4 9594 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9595 if (err)
9596 return err;
9597 }
9598
9599 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9600 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9601 return -EINVAL;
9602
c80d545d
JC		 9603 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9604 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9605
4bb62344
CYY		 9606 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9607 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9608 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9609 return -EINVAL;
9610
9bdbf04d
MP		 9611 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9612 setup.beacon_interval =
9613 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9 9614
0c317a02
PK		 9615 err = cfg80211_validate_beacon_int(rdev,
9616 NL80211_IFTYPE_MESH_POINT,
9617 setup.beacon_interval);
12d20fc9
PK		 9618 if (err)
9619 return err;
9bdbf04d
MP		 9620 }
9621
9622 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9623 setup.dtim_period =
9624 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9625 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9626 return -EINVAL;
9627 }
9628
c80d545d
JC		 9629 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9630 /* parse additional setup parameters if given */
9631 err = nl80211_parse_mesh_setup(info, &setup);
9632 if (err)
9633 return err;
9634 }
9635
d37bb18a
TP		 9636 if (setup.user_mpm)
9637 cfg.auto_open_plinks = false;
9638
cc1d2806 9639 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 9640 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9641 if (err)
9642 return err;
cc1d2806
JB		 9643 } else {
9644 /* cfg80211_join_mesh() will sort it out */
683b6d3b 9645 setup.chandef.chan = NULL;
cc1d2806
JB		 9646 }
9647
ffb3cf30
AN		 9648 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9649 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9650 int n_rates =
9651 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9652 struct ieee80211_supported_band *sband;
9653
9654 if (!setup.chandef.chan)
9655 return -EINVAL;
9656
9657 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9658
9659 err = ieee80211_get_ratemask(sband, rates, n_rates,
9660 &setup.basic_rates);
9661 if (err)
9662 return err;
9663 }
9664
8564e382
JB		 9665 if (info->attrs[NL80211_ATTR_TX_RATES]) {
9666 err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
9667 if (err)
9668 return err;
9669
9670 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
9671 &setup.beacon_rate);
9672 if (err)
9673 return err;
9674 }
9675
c80d545d 9676 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 9677}
9678
9679static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9680{
9681 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9682 struct net_device *dev = info->user_ptr[1];
9683
9684 return cfg80211_leave_mesh(rdev, dev);
9685}
9686
dfb89c56 9687#ifdef CONFIG_PM
bb92d199
AK		 9688static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9689 struct cfg80211_registered_device *rdev)
9690{
6abb9cb9 9691 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 9692 struct nlattr *nl_pats, *nl_pat;
9693 int i, pat_len;
9694
6abb9cb9 9695 if (!wowlan->n_patterns)
bb92d199
AK		 9696 return 0;
9697
9698 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9699 if (!nl_pats)
9700 return -ENOBUFS;
9701
6abb9cb9 9702 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 9703 nl_pat = nla_nest_start(msg, i + 1);
9704 if (!nl_pat)
9705 return -ENOBUFS;
6abb9cb9 9706 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 9707 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 9708 wowlan->patterns[i].mask) ||
50ac6607
AK		 9709 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9710 wowlan->patterns[i].pattern) ||
9711 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 9712 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 9713 return -ENOBUFS;
9714 nla_nest_end(msg, nl_pat);
9715 }
9716 nla_nest_end(msg, nl_pats);
9717
9718 return 0;
9719}
9720
2a0e047e
JB		 9721static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9722 struct cfg80211_wowlan_tcp *tcp)
9723{
9724 struct nlattr *nl_tcp;
9725
9726 if (!tcp)
9727 return 0;
9728
9729 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9730 if (!nl_tcp)
9731 return -ENOBUFS;
9732
930345ea
JB		 9733 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9734 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 9735 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9736 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9737 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9738 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9739 tcp->payload_len, tcp->payload) ||
9740 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9741 tcp->data_interval) ||
9742 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9743 tcp->wake_len, tcp->wake_data) ||
9744 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9745 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9746 return -ENOBUFS;
9747
9748 if (tcp->payload_seq.len &&
9749 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9750 sizeof(tcp->payload_seq), &tcp->payload_seq))
9751 return -ENOBUFS;
9752
9753 if (tcp->payload_tok.len &&
9754 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9755 sizeof(tcp->payload_tok) + tcp->tokens_size,
9756 &tcp->payload_tok))
9757 return -ENOBUFS;
9758
e248ad30
JB		 9759 nla_nest_end(msg, nl_tcp);
9760
2a0e047e
JB		 9761 return 0;
9762}
9763
75453ccb
LC		 9764static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9765 struct cfg80211_sched_scan_request *req)
9766{
3b06d277 9767 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 9768 int i;
9769
9770 if (!req)
9771 return 0;
9772
9773 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9774 if (!nd)
9775 return -ENOBUFS;
9776
3b06d277
AS		 9777 if (req->n_scan_plans == 1 &&
9778 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9779 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9780 return -ENOBUFS;
9781
21fea567
LC		 9782 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9783 return -ENOBUFS;
9784
bf95ecdb 9785 if (req->relative_rssi_set) {
9786 struct nl80211_bss_select_rssi_adjust rssi_adjust;
9787
9788 if (nla_put_s8(msg, NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI,
9789 req->relative_rssi))
9790 return -ENOBUFS;
9791
9792 rssi_adjust.band = req->rssi_adjust.band;
9793 rssi_adjust.delta = req->rssi_adjust.delta;
9794 if (nla_put(msg, NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST,
9795 sizeof(rssi_adjust), &rssi_adjust))
9796 return -ENOBUFS;
9797 }
9798
75453ccb
LC		 9799 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9800 if (!freqs)
9801 return -ENOBUFS;
9802
53b18980
JB		 9803 for (i = 0; i < req->n_channels; i++) {
9804 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9805 return -ENOBUFS;
9806 }
75453ccb
LC		 9807
9808 nla_nest_end(msg, freqs);
9809
9810 if (req->n_match_sets) {
9811 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
76e1fb4b
JB		 9812 if (!matches)
9813 return -ENOBUFS;
9814
75453ccb
LC		 9815 for (i = 0; i < req->n_match_sets; i++) {
9816 match = nla_nest_start(msg, i);
76e1fb4b
JB		 9817 if (!match)
9818 return -ENOBUFS;
9819
53b18980
JB		 9820 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9821 req->match_sets[i].ssid.ssid_len,
9822 req->match_sets[i].ssid.ssid))
9823 return -ENOBUFS;
75453ccb
LC		 9824 nla_nest_end(msg, match);
9825 }
9826 nla_nest_end(msg, matches);
9827 }
9828
3b06d277
AS		 9829 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9830 if (!scan_plans)
9831 return -ENOBUFS;
9832
9833 for (i = 0; i < req->n_scan_plans; i++) {
9834 scan_plan = nla_nest_start(msg, i + 1);
76e1fb4b
JB		 9835 if (!scan_plan)
9836 return -ENOBUFS;
9837
3b06d277
AS		 9838 if (!scan_plan ||
9839 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9840 req->scan_plans[i].interval) ||
9841 (req->scan_plans[i].iterations &&
9842 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9843 req->scan_plans[i].iterations)))
9844 return -ENOBUFS;
9845 nla_nest_end(msg, scan_plan);
9846 }
9847 nla_nest_end(msg, scan_plans);
9848
75453ccb
LC		 9849 nla_nest_end(msg, nd);
9850
9851 return 0;
9852}
9853
ff1b6e69
JB		 9854static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9855{
9856 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9857 struct sk_buff *msg;
9858 void *hdr;
2a0e047e 9859 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 9860
964dc9e2 9861 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 9862 return -EOPNOTSUPP;
9863
6abb9cb9 9864 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 9865 /* adjust size to have room for all the data */
6abb9cb9
JB		 9866 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9867 rdev->wiphy.wowlan_config->tcp->payload_len +
9868 rdev->wiphy.wowlan_config->tcp->wake_len +
9869 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 9870 }
9871
9872 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 9873 if (!msg)
9874 return -ENOMEM;
9875
15e47304 9876 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 9877 NL80211_CMD_GET_WOWLAN);
9878 if (!hdr)
9879 goto nla_put_failure;
9880
6abb9cb9 9881 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 9882 struct nlattr *nl_wowlan;
9883
9884 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9885 if (!nl_wowlan)
9886 goto nla_put_failure;
9887
6abb9cb9 9888 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 9889 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 9890 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 9891 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 9892 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 9893 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 9894 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 9895 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 9896 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 9897 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 9898 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 9899 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 9900 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 9901 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9902 goto nla_put_failure;
2a0e047e 9903
bb92d199
AK		 9904 if (nl80211_send_wowlan_patterns(msg, rdev))
9905 goto nla_put_failure;
2a0e047e 9906
6abb9cb9
JB		 9907 if (nl80211_send_wowlan_tcp(msg,
9908 rdev->wiphy.wowlan_config->tcp))
2a0e047e 9909 goto nla_put_failure;
75453ccb
LC		 9910
9911 if (nl80211_send_wowlan_nd(
9912 msg,
9913 rdev->wiphy.wowlan_config->nd_config))
9914 goto nla_put_failure;
2a0e047e 9915
ff1b6e69
JB		 9916 nla_nest_end(msg, nl_wowlan);
9917 }
9918
9919 genlmsg_end(msg, hdr);
9920 return genlmsg_reply(msg, info);
9921
9922nla_put_failure:
9923 nlmsg_free(msg);
9924 return -ENOBUFS;
9925}
9926
2a0e047e
JB		 9927static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9928 struct nlattr *attr,
9929 struct cfg80211_wowlan *trig)
9930{
9931 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9932 struct cfg80211_wowlan_tcp *cfg;
9933 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9934 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9935 u32 size;
9936 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9937 int err, port;
9938
964dc9e2 9939 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 9940 return -EINVAL;
9941
bfe2c7b1
JB		 9942 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TCP, attr,
9943 nl80211_wowlan_tcp_policy);
2a0e047e
JB		 9944 if (err)
9945 return err;
9946
9947 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9948 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9949 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9950 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9951 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9952 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9953 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9954 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9955 return -EINVAL;
9956
9957 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 9958 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 9959 return -EINVAL;
9960
9961 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 9962 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 9963 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 9964 return -EINVAL;
9965
9966 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9967 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9968 return -EINVAL;
9969
9970 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9971 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9972 return -EINVAL;
9973
9974 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9975 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9976
9977 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9978 tokens_size = tokln - sizeof(*tok);
9979
9980 if (!tok->len || tokens_size % tok->len)
9981 return -EINVAL;
964dc9e2 9982 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9983 return -EINVAL;
964dc9e2 9984 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9985 return -EINVAL;
964dc9e2 9986 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9987 return -EINVAL;
964dc9e2 9988 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9989 return -EINVAL;
9990 if (tok->offset + tok->len > data_size)
9991 return -EINVAL;
9992 }
9993
9994 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9995 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9996 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9997 return -EINVAL;
9998 if (seq->len == 0 || seq->len > 4)
9999 return -EINVAL;
10000 if (seq->len + seq->offset > data_size)
10001 return -EINVAL;
10002 }
10003
10004 size = sizeof(*cfg);
10005 size += data_size;
10006 size += wake_size + wake_mask_size;
10007 size += tokens_size;
10008
10009 cfg = kzalloc(size, GFP_KERNEL);
10010 if (!cfg)
10011 return -ENOMEM;
67b61f6c
JB		 10012 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
10013 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 10014 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
10015 ETH_ALEN);
10016 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
10017 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
10018 else
10019 port = 0;
10020#ifdef CONFIG_INET
10021 /* allocate a socket and port for it and use it */
10022 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
10023 IPPROTO_TCP, &cfg->sock, 1);
10024 if (err) {
10025 kfree(cfg);
10026 return err;
10027 }
10028 if (inet_csk_get_port(cfg->sock->sk, port)) {
10029 sock_release(cfg->sock);
10030 kfree(cfg);
10031 return -EADDRINUSE;
10032 }
10033 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
10034#else
10035 if (!port) {
10036 kfree(cfg);
10037 return -EINVAL;
10038 }
10039 cfg->src_port = port;
10040#endif
10041
10042 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
10043 cfg->payload_len = data_size;
10044 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
10045 memcpy((void *)cfg->payload,
10046 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
10047 data_size);
10048 if (seq)
10049 cfg->payload_seq = *seq;
10050 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
10051 cfg->wake_len = wake_size;
10052 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
10053 memcpy((void *)cfg->wake_data,
10054 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
10055 wake_size);
10056 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
10057 data_size + wake_size;
10058 memcpy((void *)cfg->wake_mask,
10059 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
10060 wake_mask_size);
10061 if (tok) {
10062 cfg->tokens_size = tokens_size;
10063 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
10064 }
10065
10066 trig->tcp = cfg;
10067
10068 return 0;
10069}
10070
8cd4d456
LC		 10071static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
10072 const struct wiphy_wowlan_support *wowlan,
10073 struct nlattr *attr,
10074 struct cfg80211_wowlan *trig)
10075{
10076 struct nlattr **tb;
10077 int err;
10078
10079 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
10080 if (!tb)
10081 return -ENOMEM;
10082
10083 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
10084 err = -EOPNOTSUPP;
10085 goto out;
10086 }
10087
bfe2c7b1 10088 err = nla_parse_nested(tb, NL80211_ATTR_MAX, attr, nl80211_policy);
8cd4d456
LC		 10089 if (err)
10090 goto out;
10091
ad2b26ab 10092 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 10093 err = PTR_ERR_OR_ZERO(trig->nd_config);
10094 if (err)
10095 trig->nd_config = NULL;
10096
10097out:
10098 kfree(tb);
10099 return err;
10100}
10101
ff1b6e69
JB		 10102static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
10103{
10104 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10105 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 10106 struct cfg80211_wowlan new_triggers = {};
ae33bd81 10107 struct cfg80211_wowlan *ntrig;
964dc9e2 10108 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 10109 int err, i;
6abb9cb9 10110 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 10111 bool regular = false;
ff1b6e69 10112
964dc9e2 10113 if (!wowlan)
ff1b6e69
JB		 10114 return -EOPNOTSUPP;
10115
ae33bd81
JB		 10116 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
10117 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 10118 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 10119 goto set_wakeup;
10120 }
ff1b6e69 10121
bfe2c7b1
JB		 10122 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TRIG,
10123 info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS],
10124 nl80211_wowlan_policy);
ff1b6e69
JB		 10125 if (err)
10126 return err;
10127
10128 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
10129 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
10130 return -EINVAL;
10131 new_triggers.any = true;
10132 }
10133
10134 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
10135 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
10136 return -EINVAL;
10137 new_triggers.disconnect = true;
98fc4386 10138 regular = true;
ff1b6e69
JB		 10139 }
10140
10141 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
10142 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
10143 return -EINVAL;
10144 new_triggers.magic_pkt = true;
98fc4386 10145 regular = true;
ff1b6e69
JB		 10146 }
10147
77dbbb13
JB		 10148 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
10149 return -EINVAL;
10150
10151 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
10152 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
10153 return -EINVAL;
10154 new_triggers.gtk_rekey_failure = true;
98fc4386 10155 regular = true;
77dbbb13
JB		 10156 }
10157
10158 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
10159 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
10160 return -EINVAL;
10161 new_triggers.eap_identity_req = true;
98fc4386 10162 regular = true;
77dbbb13
JB		 10163 }
10164
10165 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
10166 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
10167 return -EINVAL;
10168 new_triggers.four_way_handshake = true;
98fc4386 10169 regular = true;
77dbbb13
JB		 10170 }
10171
10172 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
10173 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
10174 return -EINVAL;
10175 new_triggers.rfkill_release = true;
98fc4386 10176 regular = true;
77dbbb13
JB		 10177 }
10178
ff1b6e69
JB		 10179 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
10180 struct nlattr *pat;
10181 int n_patterns = 0;
bb92d199 10182 int rem, pat_len, mask_len, pkt_offset;
50ac6607 10183 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 10184
98fc4386
JB		 10185 regular = true;
10186
ff1b6e69
JB		 10187 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10188 rem)
10189 n_patterns++;
10190 if (n_patterns > wowlan->n_patterns)
10191 return -EINVAL;
10192
10193 new_triggers.patterns = kcalloc(n_patterns,
10194 sizeof(new_triggers.patterns[0]),
10195 GFP_KERNEL);
10196 if (!new_triggers.patterns)
10197 return -ENOMEM;
10198
10199 new_triggers.n_patterns = n_patterns;
10200 i = 0;
10201
10202 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10203 rem) {
922bd80f
JB		 10204 u8 *mask_pat;
10205
bfe2c7b1
JB		 10206 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
10207 NULL);
ff1b6e69 10208 err = -EINVAL;
50ac6607
AK		 10209 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10210 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 10211 goto error;
50ac6607 10212 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 10213 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 10214 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 10215 goto error;
10216 if (pat_len > wowlan->pattern_max_len ||
10217 pat_len < wowlan->pattern_min_len)
10218 goto error;
10219
50ac6607 10220 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 10221 pkt_offset = 0;
10222 else
10223 pkt_offset = nla_get_u32(
50ac6607 10224 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 10225 if (pkt_offset > wowlan->max_pkt_offset)
10226 goto error;
10227 new_triggers.patterns[i].pkt_offset = pkt_offset;
10228
922bd80f
JB		 10229 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10230 if (!mask_pat) {
ff1b6e69
JB		 10231 err = -ENOMEM;
10232 goto error;
10233 }
922bd80f
JB		 10234 new_triggers.patterns[i].mask = mask_pat;
10235 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 10236 mask_len);
922bd80f
JB		 10237 mask_pat += mask_len;
10238 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 10239 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 10240 memcpy(mask_pat,
50ac6607 10241 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 10242 pat_len);
10243 i++;
10244 }
10245 }
10246
2a0e047e 10247 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 10248 regular = true;
2a0e047e
JB		 10249 err = nl80211_parse_wowlan_tcp(
10250 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
10251 &new_triggers);
10252 if (err)
10253 goto error;
10254 }
10255
8cd4d456 10256 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 10257 regular = true;
8cd4d456
LC		 10258 err = nl80211_parse_wowlan_nd(
10259 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
10260 &new_triggers);
10261 if (err)
10262 goto error;
10263 }
10264
98fc4386
JB		 10265 /* The 'any' trigger means the device continues operating more or less
10266 * as in its normal operation mode and wakes up the host on most of the
10267 * normal interrupts (like packet RX, ...)
10268 * It therefore makes little sense to combine with the more constrained
10269 * wakeup trigger modes.
10270 */
10271 if (new_triggers.any && regular) {
10272 err = -EINVAL;
10273 goto error;
10274 }
10275
ae33bd81
JB		 10276 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
10277 if (!ntrig) {
10278 err = -ENOMEM;
10279 goto error;
ff1b6e69 10280 }
ae33bd81 10281 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 10282 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 10283
ae33bd81 10284 set_wakeup:
6abb9cb9
JB		 10285 if (rdev->ops->set_wakeup &&
10286 prev_enabled != !!rdev->wiphy.wowlan_config)
10287 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 10288
ff1b6e69
JB		 10289 return 0;
10290 error:
10291 for (i = 0; i < new_triggers.n_patterns; i++)
10292 kfree(new_triggers.patterns[i].mask);
10293 kfree(new_triggers.patterns);
2a0e047e
JB		 10294 if (new_triggers.tcp && new_triggers.tcp->sock)
10295 sock_release(new_triggers.tcp->sock);
10296 kfree(new_triggers.tcp);
e5dbe070 10297 kfree(new_triggers.nd_config);
ff1b6e69
JB		 10298 return err;
10299}
dfb89c56 10300#endif
ff1b6e69 10301
be29b99a
AK		 10302static int nl80211_send_coalesce_rules(struct sk_buff *msg,
10303 struct cfg80211_registered_device *rdev)
10304{
10305 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
10306 int i, j, pat_len;
10307 struct cfg80211_coalesce_rules *rule;
10308
10309 if (!rdev->coalesce->n_rules)
10310 return 0;
10311
10312 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
10313 if (!nl_rules)
10314 return -ENOBUFS;
10315
10316 for (i = 0; i < rdev->coalesce->n_rules; i++) {
10317 nl_rule = nla_nest_start(msg, i + 1);
10318 if (!nl_rule)
10319 return -ENOBUFS;
10320
10321 rule = &rdev->coalesce->rules[i];
10322 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
10323 rule->delay))
10324 return -ENOBUFS;
10325
10326 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
10327 rule->condition))
10328 return -ENOBUFS;
10329
10330 nl_pats = nla_nest_start(msg,
10331 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
10332 if (!nl_pats)
10333 return -ENOBUFS;
10334
10335 for (j = 0; j < rule->n_patterns; j++) {
10336 nl_pat = nla_nest_start(msg, j + 1);
10337 if (!nl_pat)
10338 return -ENOBUFS;
10339 pat_len = rule->patterns[j].pattern_len;
10340 if (nla_put(msg, NL80211_PKTPAT_MASK,
10341 DIV_ROUND_UP(pat_len, 8),
10342 rule->patterns[j].mask) ||
10343 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10344 rule->patterns[j].pattern) ||
10345 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10346 rule->patterns[j].pkt_offset))
10347 return -ENOBUFS;
10348 nla_nest_end(msg, nl_pat);
10349 }
10350 nla_nest_end(msg, nl_pats);
10351 nla_nest_end(msg, nl_rule);
10352 }
10353 nla_nest_end(msg, nl_rules);
10354
10355 return 0;
10356}
10357
10358static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
10359{
10360 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10361 struct sk_buff *msg;
10362 void *hdr;
10363
10364 if (!rdev->wiphy.coalesce)
10365 return -EOPNOTSUPP;
10366
10367 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10368 if (!msg)
10369 return -ENOMEM;
10370
10371 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10372 NL80211_CMD_GET_COALESCE);
10373 if (!hdr)
10374 goto nla_put_failure;
10375
10376 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
10377 goto nla_put_failure;
10378
10379 genlmsg_end(msg, hdr);
10380 return genlmsg_reply(msg, info);
10381
10382nla_put_failure:
10383 nlmsg_free(msg);
10384 return -ENOBUFS;
10385}
10386
10387void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
10388{
10389 struct cfg80211_coalesce *coalesce = rdev->coalesce;
10390 int i, j;
10391 struct cfg80211_coalesce_rules *rule;
10392
10393 if (!coalesce)
10394 return;
10395
10396 for (i = 0; i < coalesce->n_rules; i++) {
10397 rule = &coalesce->rules[i];
10398 for (j = 0; j < rule->n_patterns; j++)
10399 kfree(rule->patterns[j].mask);
10400 kfree(rule->patterns);
10401 }
10402 kfree(coalesce->rules);
10403 kfree(coalesce);
10404 rdev->coalesce = NULL;
10405}
10406
10407static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10408 struct nlattr *rule,
10409 struct cfg80211_coalesce_rules *new_rule)
10410{
10411 int err, i;
10412 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10413 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10414 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10415 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10416
bfe2c7b1
JB		 10417 err = nla_parse_nested(tb, NL80211_ATTR_COALESCE_RULE_MAX, rule,
10418 nl80211_coalesce_policy);
be29b99a
AK		 10419 if (err)
10420 return err;
10421
10422 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10423 new_rule->delay =
10424 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10425 if (new_rule->delay > coalesce->max_delay)
10426 return -EINVAL;
10427
10428 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10429 new_rule->condition =
10430 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10431 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10432 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10433 return -EINVAL;
10434
10435 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10436 return -EINVAL;
10437
10438 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10439 rem)
10440 n_patterns++;
10441 if (n_patterns > coalesce->n_patterns)
10442 return -EINVAL;
10443
10444 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10445 GFP_KERNEL);
10446 if (!new_rule->patterns)
10447 return -ENOMEM;
10448
10449 new_rule->n_patterns = n_patterns;
10450 i = 0;
10451
10452 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10453 rem) {
922bd80f
JB		 10454 u8 *mask_pat;
10455
bfe2c7b1 10456 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat, NULL);
be29b99a
AK		 10457 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10458 !pat_tb[NL80211_PKTPAT_PATTERN])
10459 return -EINVAL;
10460 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10461 mask_len = DIV_ROUND_UP(pat_len, 8);
10462 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10463 return -EINVAL;
10464 if (pat_len > coalesce->pattern_max_len ||
10465 pat_len < coalesce->pattern_min_len)
10466 return -EINVAL;
10467
10468 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10469 pkt_offset = 0;
10470 else
10471 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10472 if (pkt_offset > coalesce->max_pkt_offset)
10473 return -EINVAL;
10474 new_rule->patterns[i].pkt_offset = pkt_offset;
10475
922bd80f
JB		 10476 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10477 if (!mask_pat)
be29b99a 10478 return -ENOMEM;
922bd80f
JB		 10479
10480 new_rule->patterns[i].mask = mask_pat;
10481 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10482 mask_len);
10483
10484 mask_pat += mask_len;
10485 new_rule->patterns[i].pattern = mask_pat;
be29b99a 10486 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 10487 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10488 pat_len);
be29b99a
AK		 10489 i++;
10490 }
10491
10492 return 0;
10493}
10494
10495static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10496{
10497 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10498 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10499 struct cfg80211_coalesce new_coalesce = {};
10500 struct cfg80211_coalesce *n_coalesce;
10501 int err, rem_rule, n_rules = 0, i, j;
10502 struct nlattr *rule;
10503 struct cfg80211_coalesce_rules *tmp_rule;
10504
10505 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10506 return -EOPNOTSUPP;
10507
10508 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10509 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 10510 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 10511 return 0;
10512 }
10513
10514 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10515 rem_rule)
10516 n_rules++;
10517 if (n_rules > coalesce->n_rules)
10518 return -EINVAL;
10519
10520 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10521 GFP_KERNEL);
10522 if (!new_coalesce.rules)
10523 return -ENOMEM;
10524
10525 new_coalesce.n_rules = n_rules;
10526 i = 0;
10527
10528 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10529 rem_rule) {
10530 err = nl80211_parse_coalesce_rule(rdev, rule,
10531 &new_coalesce.rules[i]);
10532 if (err)
10533 goto error;
10534
10535 i++;
10536 }
10537
a1056b1b 10538 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 10539 if (err)
10540 goto error;
10541
10542 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10543 if (!n_coalesce) {
10544 err = -ENOMEM;
10545 goto error;
10546 }
10547 cfg80211_rdev_free_coalesce(rdev);
10548 rdev->coalesce = n_coalesce;
10549
10550 return 0;
10551error:
10552 for (i = 0; i < new_coalesce.n_rules; i++) {
10553 tmp_rule = &new_coalesce.rules[i];
10554 for (j = 0; j < tmp_rule->n_patterns; j++)
10555 kfree(tmp_rule->patterns[j].mask);
10556 kfree(tmp_rule->patterns);
10557 }
10558 kfree(new_coalesce.rules);
10559
10560 return err;
10561}
10562
e5497d76
JB		 10563static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10564{
10565 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10566 struct net_device *dev = info->user_ptr[1];
10567 struct wireless_dev *wdev = dev->ieee80211_ptr;
10568 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10569 struct cfg80211_gtk_rekey_data rekey_data;
10570 int err;
10571
10572 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10573 return -EINVAL;
10574
bfe2c7b1
JB		 10575 err = nla_parse_nested(tb, MAX_NL80211_REKEY_DATA,
10576 info->attrs[NL80211_ATTR_REKEY_DATA],
10577 nl80211_rekey_policy);
e5497d76
JB		 10578 if (err)
10579 return err;
10580
10581 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10582 return -ERANGE;
10583 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10584 return -ERANGE;
10585 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10586 return -ERANGE;
10587
78f686ca
JB		 10588 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10589 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10590 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 10591
10592 wdev_lock(wdev);
10593 if (!wdev->current_bss) {
10594 err = -ENOTCONN;
10595 goto out;
10596 }
10597
10598 if (!rdev->ops->set_rekey_data) {
10599 err = -EOPNOTSUPP;
10600 goto out;
10601 }
10602
e35e4d28 10603 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 10604 out:
10605 wdev_unlock(wdev);
10606 return err;
10607}
10608
28946da7
JB		 10609static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10610 struct genl_info *info)
10611{
10612 struct net_device *dev = info->user_ptr[1];
10613 struct wireless_dev *wdev = dev->ieee80211_ptr;
10614
10615 if (wdev->iftype != NL80211_IFTYPE_AP &&
10616 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10617 return -EINVAL;
10618
15e47304 10619 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 10620 return -EBUSY;
10621
15e47304 10622 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 10623 return 0;
10624}
10625
7f6cf311
JB		 10626static int nl80211_probe_client(struct sk_buff *skb,
10627 struct genl_info *info)
10628{
10629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10630 struct net_device *dev = info->user_ptr[1];
10631 struct wireless_dev *wdev = dev->ieee80211_ptr;
10632 struct sk_buff *msg;
10633 void *hdr;
10634 const u8 *addr;
10635 u64 cookie;
10636 int err;
10637
10638 if (wdev->iftype != NL80211_IFTYPE_AP &&
10639 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10640 return -EOPNOTSUPP;
10641
10642 if (!info->attrs[NL80211_ATTR_MAC])
10643 return -EINVAL;
10644
10645 if (!rdev->ops->probe_client)
10646 return -EOPNOTSUPP;
10647
10648 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10649 if (!msg)
10650 return -ENOMEM;
10651
15e47304 10652 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 10653 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 10654 if (!hdr) {
10655 err = -ENOBUFS;
7f6cf311
JB		 10656 goto free_msg;
10657 }
10658
10659 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10660
e35e4d28 10661 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 10662 if (err)
10663 goto free_msg;
10664
2dad624e
ND		 10665 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10666 NL80211_ATTR_PAD))
9360ffd1 10667 goto nla_put_failure;
7f6cf311
JB		 10668
10669 genlmsg_end(msg, hdr);
10670
10671 return genlmsg_reply(msg, info);
10672
10673 nla_put_failure:
10674 err = -ENOBUFS;
10675 free_msg:
10676 nlmsg_free(msg);
10677 return err;
10678}
10679
5e760230
JB		 10680static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10681{
10682 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 10683 struct cfg80211_beacon_registration *reg, *nreg;
10684 int rv;
5e760230
JB		 10685
10686 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10687 return -EOPNOTSUPP;
10688
37c73b5f
BG		 10689 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10690 if (!nreg)
10691 return -ENOMEM;
10692
10693 /* First, check if already registered. */
10694 spin_lock_bh(&rdev->beacon_registrations_lock);
10695 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10696 if (reg->nlportid == info->snd_portid) {
10697 rv = -EALREADY;
10698 goto out_err;
10699 }
10700 }
10701 /* Add it to the list */
10702 nreg->nlportid = info->snd_portid;
10703 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 10704
37c73b5f 10705 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10706
10707 return 0;
37c73b5f
BG		 10708out_err:
10709 spin_unlock_bh(&rdev->beacon_registrations_lock);
10710 kfree(nreg);
10711 return rv;
5e760230
JB		 10712}
10713
98104fde
JB		 10714static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10715{
10716 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10717 struct wireless_dev *wdev = info->user_ptr[1];
10718 int err;
10719
10720 if (!rdev->ops->start_p2p_device)
10721 return -EOPNOTSUPP;
10722
10723 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10724 return -EOPNOTSUPP;
10725
73c7da3d 10726 if (wdev_running(wdev))
98104fde
JB		 10727 return 0;
10728
b6a55015
LC		 10729 if (rfkill_blocked(rdev->rfkill))
10730 return -ERFKILL;
98104fde 10731
eeb126e9 10732 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 10733 if (err)
10734 return err;
10735
73c7da3d 10736 wdev->is_running = true;
98104fde 10737 rdev->opencount++;
98104fde
JB		 10738
10739 return 0;
10740}
10741
10742static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10743{
10744 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10745 struct wireless_dev *wdev = info->user_ptr[1];
10746
10747 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10748 return -EOPNOTSUPP;
10749
10750 if (!rdev->ops->stop_p2p_device)
10751 return -EOPNOTSUPP;
10752
f9f47529 10753 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 10754
10755 return 0;
10756}
10757
cb3b7d87
AB		 10758static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
10759{
10760 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10761 struct wireless_dev *wdev = info->user_ptr[1];
10762 struct cfg80211_nan_conf conf = {};
10763 int err;
10764
10765 if (wdev->iftype != NL80211_IFTYPE_NAN)
10766 return -EOPNOTSUPP;
10767
eeb04a96 10768 if (wdev_running(wdev))
cb3b7d87
AB		 10769 return -EEXIST;
10770
10771 if (rfkill_blocked(rdev->rfkill))
10772 return -ERFKILL;
10773
10774 if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
10775 return -EINVAL;
10776
10777 if (!info->attrs[NL80211_ATTR_NAN_DUAL])
10778 return -EINVAL;
10779
10780 conf.master_pref =
10781 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
10782 if (!conf.master_pref)
10783 return -EINVAL;
10784
10785 conf.dual = nla_get_u8(info->attrs[NL80211_ATTR_NAN_DUAL]);
10786
10787 err = rdev_start_nan(rdev, wdev, &conf);
10788 if (err)
10789 return err;
10790
73c7da3d 10791 wdev->is_running = true;
cb3b7d87
AB		 10792 rdev->opencount++;
10793
10794 return 0;
10795}
10796
10797static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
10798{
10799 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10800 struct wireless_dev *wdev = info->user_ptr[1];
10801
10802 if (wdev->iftype != NL80211_IFTYPE_NAN)
10803 return -EOPNOTSUPP;
10804
10805 cfg80211_stop_nan(rdev, wdev);
10806
10807 return 0;
10808}
10809
a442b761
AB		 10810static int validate_nan_filter(struct nlattr *filter_attr)
10811{
10812 struct nlattr *attr;
10813 int len = 0, n_entries = 0, rem;
10814
10815 nla_for_each_nested(attr, filter_attr, rem) {
10816 len += nla_len(attr);
10817 n_entries++;
10818 }
10819
10820 if (len >= U8_MAX)
10821 return -EINVAL;
10822
10823 return n_entries;
10824}
10825
10826static int handle_nan_filter(struct nlattr *attr_filter,
10827 struct cfg80211_nan_func *func,
10828 bool tx)
10829{
10830 struct nlattr *attr;
10831 int n_entries, rem, i;
10832 struct cfg80211_nan_func_filter *filter;
10833
10834 n_entries = validate_nan_filter(attr_filter);
10835 if (n_entries < 0)
10836 return n_entries;
10837
10838 BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters));
10839
10840 filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL);
10841 if (!filter)
10842 return -ENOMEM;
10843
10844 i = 0;
10845 nla_for_each_nested(attr, attr_filter, rem) {
b15ca182 10846 filter[i].filter = nla_memdup(attr, GFP_KERNEL);
a442b761
AB		 10847 filter[i].len = nla_len(attr);
10848 i++;
10849 }
10850 if (tx) {
10851 func->num_tx_filters = n_entries;
10852 func->tx_filters = filter;
10853 } else {
10854 func->num_rx_filters = n_entries;
10855 func->rx_filters = filter;
10856 }
10857
10858 return 0;
10859}
10860
10861static int nl80211_nan_add_func(struct sk_buff *skb,
10862 struct genl_info *info)
10863{
10864 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10865 struct wireless_dev *wdev = info->user_ptr[1];
10866 struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr;
10867 struct cfg80211_nan_func *func;
10868 struct sk_buff *msg = NULL;
10869 void *hdr = NULL;
10870 int err = 0;
10871
10872 if (wdev->iftype != NL80211_IFTYPE_NAN)
10873 return -EOPNOTSUPP;
10874
73c7da3d 10875 if (!wdev_running(wdev))
a442b761
AB		 10876 return -ENOTCONN;
10877
10878 if (!info->attrs[NL80211_ATTR_NAN_FUNC])
10879 return -EINVAL;
10880
10881 if (wdev->owner_nlportid &&
10882 wdev->owner_nlportid != info->snd_portid)
10883 return -ENOTCONN;
10884
bfe2c7b1
JB		 10885 err = nla_parse_nested(tb, NL80211_NAN_FUNC_ATTR_MAX,
10886 info->attrs[NL80211_ATTR_NAN_FUNC],
10887 nl80211_nan_func_policy);
a442b761
AB		 10888 if (err)
10889 return err;
10890
10891 func = kzalloc(sizeof(*func), GFP_KERNEL);
10892 if (!func)
10893 return -ENOMEM;
10894
10895 func->cookie = wdev->wiphy->cookie_counter++;
10896
10897 if (!tb[NL80211_NAN_FUNC_TYPE] ||
10898 nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]) > NL80211_NAN_FUNC_MAX_TYPE) {
10899 err = -EINVAL;
10900 goto out;
10901 }
10902
10903
10904 func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]);
10905
10906 if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) {
10907 err = -EINVAL;
10908 goto out;
10909 }
10910
10911 memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]),
10912 sizeof(func->service_id));
10913
10914 func->close_range =
10915 nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]);
10916
10917 if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) {
10918 func->serv_spec_info_len =
10919 nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]);
10920 func->serv_spec_info =
10921 kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]),
10922 func->serv_spec_info_len,
10923 GFP_KERNEL);
10924 if (!func->serv_spec_info) {
10925 err = -ENOMEM;
10926 goto out;
10927 }
10928 }
10929
10930 if (tb[NL80211_NAN_FUNC_TTL])
10931 func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]);
10932
10933 switch (func->type) {
10934 case NL80211_NAN_FUNC_PUBLISH:
10935 if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) {
10936 err = -EINVAL;
10937 goto out;
10938 }
10939
10940 func->publish_type =
10941 nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]);
10942 func->publish_bcast =
10943 nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]);
10944
10945 if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) &&
10946 func->publish_bcast) {
10947 err = -EINVAL;
10948 goto out;
10949 }
10950 break;
10951 case NL80211_NAN_FUNC_SUBSCRIBE:
10952 func->subscribe_active =
10953 nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]);
10954 break;
10955 case NL80211_NAN_FUNC_FOLLOW_UP:
10956 if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] ||
10957 !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]) {
10958 err = -EINVAL;
10959 goto out;
10960 }
10961
10962 func->followup_id =
10963 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]);
10964 func->followup_reqid =
10965 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]);
10966 memcpy(func->followup_dest.addr,
10967 nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]),
10968 sizeof(func->followup_dest.addr));
10969 if (func->ttl) {
10970 err = -EINVAL;
10971 goto out;
10972 }
10973 break;
10974 default:
10975 err = -EINVAL;
10976 goto out;
10977 }
10978
10979 if (tb[NL80211_NAN_FUNC_SRF]) {
10980 struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR];
10981
bfe2c7b1
JB		 10982 err = nla_parse_nested(srf_tb, NL80211_NAN_SRF_ATTR_MAX,
10983 tb[NL80211_NAN_FUNC_SRF],
10984 nl80211_nan_srf_policy);
a442b761
AB		 10985 if (err)
10986 goto out;
10987
10988 func->srf_include =
10989 nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]);
10990
10991 if (srf_tb[NL80211_NAN_SRF_BF]) {
10992 if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] ||
10993 !srf_tb[NL80211_NAN_SRF_BF_IDX]) {
10994 err = -EINVAL;
10995 goto out;
10996 }
10997
10998 func->srf_bf_len =
10999 nla_len(srf_tb[NL80211_NAN_SRF_BF]);
11000 func->srf_bf =
11001 kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]),
11002 func->srf_bf_len, GFP_KERNEL);
11003 if (!func->srf_bf) {
11004 err = -ENOMEM;
11005 goto out;
11006 }
11007
11008 func->srf_bf_idx =
11009 nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]);
11010 } else {
11011 struct nlattr *attr, *mac_attr =
11012 srf_tb[NL80211_NAN_SRF_MAC_ADDRS];
11013 int n_entries, rem, i = 0;
11014
11015 if (!mac_attr) {
11016 err = -EINVAL;
11017 goto out;
11018 }
11019
11020 n_entries = validate_acl_mac_addrs(mac_attr);
11021 if (n_entries <= 0) {
11022 err = -EINVAL;
11023 goto out;
11024 }
11025
11026 func->srf_num_macs = n_entries;
11027 func->srf_macs =
11028 kzalloc(sizeof(*func->srf_macs) * n_entries,
11029 GFP_KERNEL);
11030 if (!func->srf_macs) {
11031 err = -ENOMEM;
11032 goto out;
11033 }
11034
11035 nla_for_each_nested(attr, mac_attr, rem)
11036 memcpy(func->srf_macs[i++].addr, nla_data(attr),
11037 sizeof(*func->srf_macs));
11038 }
11039 }
11040
11041 if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) {
11042 err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER],
11043 func, true);
11044 if (err)
11045 goto out;
11046 }
11047
11048 if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) {
11049 err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER],
11050 func, false);
11051 if (err)
11052 goto out;
11053 }
11054
11055 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11056 if (!msg) {
11057 err = -ENOMEM;
11058 goto out;
11059 }
11060
11061 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11062 NL80211_CMD_ADD_NAN_FUNCTION);
11063 /* This can't really happen - we just allocated 4KB */
11064 if (WARN_ON(!hdr)) {
11065 err = -ENOMEM;
11066 goto out;
11067 }
11068
11069 err = rdev_add_nan_func(rdev, wdev, func);
11070out:
11071 if (err < 0) {
11072 cfg80211_free_nan_func(func);
11073 nlmsg_free(msg);
11074 return err;
11075 }
11076
11077 /* propagate the instance id and cookie to userspace */
11078 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie,
11079 NL80211_ATTR_PAD))
11080 goto nla_put_failure;
11081
11082 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11083 if (!func_attr)
11084 goto nla_put_failure;
11085
11086 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID,
11087 func->instance_id))
11088 goto nla_put_failure;
11089
11090 nla_nest_end(msg, func_attr);
11091
11092 genlmsg_end(msg, hdr);
11093 return genlmsg_reply(msg, info);
11094
11095nla_put_failure:
11096 nlmsg_free(msg);
11097 return -ENOBUFS;
11098}
11099
11100static int nl80211_nan_del_func(struct sk_buff *skb,
11101 struct genl_info *info)
11102{
11103 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11104 struct wireless_dev *wdev = info->user_ptr[1];
11105 u64 cookie;
11106
11107 if (wdev->iftype != NL80211_IFTYPE_NAN)
11108 return -EOPNOTSUPP;
11109
73c7da3d 11110 if (!wdev_running(wdev))
a442b761
AB		 11111 return -ENOTCONN;
11112
11113 if (!info->attrs[NL80211_ATTR_COOKIE])
11114 return -EINVAL;
11115
11116 if (wdev->owner_nlportid &&
11117 wdev->owner_nlportid != info->snd_portid)
11118 return -ENOTCONN;
11119
11120 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
11121
11122 rdev_del_nan_func(rdev, wdev, cookie);
11123
11124 return 0;
11125}
11126
a5a9dcf2
AB		 11127static int nl80211_nan_change_config(struct sk_buff *skb,
11128 struct genl_info *info)
11129{
11130 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11131 struct wireless_dev *wdev = info->user_ptr[1];
11132 struct cfg80211_nan_conf conf = {};
11133 u32 changed = 0;
11134
11135 if (wdev->iftype != NL80211_IFTYPE_NAN)
11136 return -EOPNOTSUPP;
11137
73c7da3d 11138 if (!wdev_running(wdev))
a5a9dcf2
AB		 11139 return -ENOTCONN;
11140
11141 if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) {
11142 conf.master_pref =
11143 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11144 if (conf.master_pref <= 1 || conf.master_pref == 255)
11145 return -EINVAL;
11146
11147 changed |= CFG80211_NAN_CONF_CHANGED_PREF;
11148 }
11149
11150 if (info->attrs[NL80211_ATTR_NAN_DUAL]) {
11151 conf.dual = nla_get_u8(info->attrs[NL80211_ATTR_NAN_DUAL]);
11152 changed |= CFG80211_NAN_CONF_CHANGED_DUAL;
11153 }
11154
11155 if (!changed)
11156 return -EINVAL;
11157
11158 return rdev_nan_change_conf(rdev, wdev, &conf, changed);
11159}
11160
50bcd31d
AB		 11161void cfg80211_nan_match(struct wireless_dev *wdev,
11162 struct cfg80211_nan_match_params *match, gfp_t gfp)
11163{
11164 struct wiphy *wiphy = wdev->wiphy;
11165 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11166 struct nlattr *match_attr, *local_func_attr, *peer_func_attr;
11167 struct sk_buff *msg;
11168 void *hdr;
11169
11170 if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr))
11171 return;
11172
11173 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11174 if (!msg)
11175 return;
11176
11177 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH);
11178 if (!hdr) {
11179 nlmsg_free(msg);
11180 return;
11181 }
11182
11183 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11184 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11185 wdev->netdev->ifindex)) ||
11186 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11187 NL80211_ATTR_PAD))
11188 goto nla_put_failure;
11189
11190 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie,
11191 NL80211_ATTR_PAD) ||
11192 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr))
11193 goto nla_put_failure;
11194
11195 match_attr = nla_nest_start(msg, NL80211_ATTR_NAN_MATCH);
11196 if (!match_attr)
11197 goto nla_put_failure;
11198
11199 local_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_LOCAL);
11200 if (!local_func_attr)
11201 goto nla_put_failure;
11202
11203 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id))
11204 goto nla_put_failure;
11205
11206 nla_nest_end(msg, local_func_attr);
11207
11208 peer_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_PEER);
11209 if (!peer_func_attr)
11210 goto nla_put_failure;
11211
11212 if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) ||
11213 nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id))
11214 goto nla_put_failure;
11215
11216 if (match->info && match->info_len &&
11217 nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len,
11218 match->info))
11219 goto nla_put_failure;
11220
11221 nla_nest_end(msg, peer_func_attr);
11222 nla_nest_end(msg, match_attr);
11223 genlmsg_end(msg, hdr);
11224
11225 if (!wdev->owner_nlportid)
11226 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11227 msg, 0, NL80211_MCGRP_NAN, gfp);
11228 else
11229 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11230 wdev->owner_nlportid);
11231
11232 return;
11233
11234nla_put_failure:
11235 nlmsg_free(msg);
11236}
11237EXPORT_SYMBOL(cfg80211_nan_match);
11238
368e5a7b
AB		 11239void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
11240 u8 inst_id,
11241 enum nl80211_nan_func_term_reason reason,
11242 u64 cookie, gfp_t gfp)
11243{
11244 struct wiphy *wiphy = wdev->wiphy;
11245 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11246 struct sk_buff *msg;
11247 struct nlattr *func_attr;
11248 void *hdr;
11249
11250 if (WARN_ON(!inst_id))
11251 return;
11252
11253 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11254 if (!msg)
11255 return;
11256
11257 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION);
11258 if (!hdr) {
11259 nlmsg_free(msg);
11260 return;
11261 }
11262
11263 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11264 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11265 wdev->netdev->ifindex)) ||
11266 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11267 NL80211_ATTR_PAD))
11268 goto nla_put_failure;
11269
11270 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11271 NL80211_ATTR_PAD))
11272 goto nla_put_failure;
11273
11274 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11275 if (!func_attr)
11276 goto nla_put_failure;
11277
11278 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) ||
11279 nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason))
11280 goto nla_put_failure;
11281
11282 nla_nest_end(msg, func_attr);
11283 genlmsg_end(msg, hdr);
11284
11285 if (!wdev->owner_nlportid)
11286 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11287 msg, 0, NL80211_MCGRP_NAN, gfp);
11288 else
11289 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11290 wdev->owner_nlportid);
11291
11292 return;
11293
11294nla_put_failure:
11295 nlmsg_free(msg);
11296}
11297EXPORT_SYMBOL(cfg80211_nan_func_terminated);
11298
3713b4e3
JB		 11299static int nl80211_get_protocol_features(struct sk_buff *skb,
11300 struct genl_info *info)
11301{
11302 void *hdr;
11303 struct sk_buff *msg;
11304
11305 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11306 if (!msg)
11307 return -ENOMEM;
11308
11309 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11310 NL80211_CMD_GET_PROTOCOL_FEATURES);
11311 if (!hdr)
11312 goto nla_put_failure;
11313
11314 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
11315 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
11316 goto nla_put_failure;
11317
11318 genlmsg_end(msg, hdr);
11319 return genlmsg_reply(msg, info);
11320
11321 nla_put_failure:
11322 kfree_skb(msg);
11323 return -ENOBUFS;
11324}
11325
355199e0
JM		 11326static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
11327{
11328 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11329 struct cfg80211_update_ft_ies_params ft_params;
11330 struct net_device *dev = info->user_ptr[1];
11331
11332 if (!rdev->ops->update_ft_ies)
11333 return -EOPNOTSUPP;
11334
11335 if (!info->attrs[NL80211_ATTR_MDID] ||
11336 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
11337 return -EINVAL;
11338
11339 memset(&ft_params, 0, sizeof(ft_params));
11340 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
11341 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
11342 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
11343
11344 return rdev_update_ft_ies(rdev, dev, &ft_params);
11345}
11346
5de17984
AS		 11347static int nl80211_crit_protocol_start(struct sk_buff *skb,
11348 struct genl_info *info)
11349{
11350 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11351 struct wireless_dev *wdev = info->user_ptr[1];
11352 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
11353 u16 duration;
11354 int ret;
11355
11356 if (!rdev->ops->crit_proto_start)
11357 return -EOPNOTSUPP;
11358
11359 if (WARN_ON(!rdev->ops->crit_proto_stop))
11360 return -EINVAL;
11361
11362 if (rdev->crit_proto_nlportid)
11363 return -EBUSY;
11364
11365 /* determine protocol if provided */
11366 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
11367 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
11368
11369 if (proto >= NUM_NL80211_CRIT_PROTO)
11370 return -EINVAL;
11371
11372 /* timeout must be provided */
11373 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
11374 return -EINVAL;
11375
11376 duration =
11377 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
11378
11379 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
11380 return -ERANGE;
11381
11382 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
11383 if (!ret)
11384 rdev->crit_proto_nlportid = info->snd_portid;
11385
11386 return ret;
11387}
11388
11389static int nl80211_crit_protocol_stop(struct sk_buff *skb,
11390 struct genl_info *info)
11391{
11392 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11393 struct wireless_dev *wdev = info->user_ptr[1];
11394
11395 if (!rdev->ops->crit_proto_stop)
11396 return -EOPNOTSUPP;
11397
11398 if (rdev->crit_proto_nlportid) {
11399 rdev->crit_proto_nlportid = 0;
11400 rdev_crit_proto_stop(rdev, wdev);
11401 }
11402 return 0;
11403}
11404
ad7e718c
JB		 11405static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
11406{
11407 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11408 struct wireless_dev *wdev =
11409 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
11410 int i, err;
11411 u32 vid, subcmd;
11412
11413 if (!rdev->wiphy.vendor_commands)
11414 return -EOPNOTSUPP;
11415
11416 if (IS_ERR(wdev)) {
11417 err = PTR_ERR(wdev);
11418 if (err != -EINVAL)
11419 return err;
11420 wdev = NULL;
11421 } else if (wdev->wiphy != &rdev->wiphy) {
11422 return -EINVAL;
11423 }
11424
11425 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
11426 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
11427 return -EINVAL;
11428
11429 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
11430 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
11431 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
11432 const struct wiphy_vendor_command *vcmd;
11433 void *data = NULL;
11434 int len = 0;
11435
11436 vcmd = &rdev->wiphy.vendor_commands[i];
11437
11438 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11439 continue;
11440
11441 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11442 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11443 if (!wdev)
11444 return -EINVAL;
11445 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11446 !wdev->netdev)
11447 return -EINVAL;
11448
11449 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
73c7da3d 11450 if (!wdev_running(wdev))
ad7e718c
JB		 11451 return -ENETDOWN;
11452 }
7bdbe400
JB		 11453
11454 if (!vcmd->doit)
11455 return -EOPNOTSUPP;
ad7e718c
JB		 11456 } else {
11457 wdev = NULL;
11458 }
11459
11460 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
11461 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11462 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11463 }
11464
11465 rdev->cur_cmd_info = info;
11466 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
11467 data, len);
11468 rdev->cur_cmd_info = NULL;
11469 return err;
11470 }
11471
11472 return -EOPNOTSUPP;
11473}
11474
7bdbe400
JB		 11475static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
11476 struct netlink_callback *cb,
11477 struct cfg80211_registered_device **rdev,
11478 struct wireless_dev **wdev)
11479{
c90c39da 11480 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
7bdbe400
JB		 11481 u32 vid, subcmd;
11482 unsigned int i;
11483 int vcmd_idx = -1;
11484 int err;
11485 void *data = NULL;
11486 unsigned int data_len = 0;
11487
11488 rtnl_lock();
11489
11490 if (cb->args[0]) {
11491 /* subtract the 1 again here */
11492 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
11493 struct wireless_dev *tmp;
11494
11495 if (!wiphy) {
11496 err = -ENODEV;
11497 goto out_unlock;
11498 }
11499 *rdev = wiphy_to_rdev(wiphy);
11500 *wdev = NULL;
11501
11502 if (cb->args[1]) {
53873f13 11503 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
7bdbe400
JB		 11504 if (tmp->identifier == cb->args[1] - 1) {
11505 *wdev = tmp;
11506 break;
11507 }
11508 }
11509 }
11510
11511 /* keep rtnl locked in successful case */
11512 return 0;
11513 }
11514
11515 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
c90c39da 11516 attrbuf, nl80211_fam.maxattr, nl80211_policy);
7bdbe400
JB		 11517 if (err)
11518 goto out_unlock;
11519
c90c39da
JB		 11520 if (!attrbuf[NL80211_ATTR_VENDOR_ID] ||
11521 !attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
7bdbe400
JB		 11522 err = -EINVAL;
11523 goto out_unlock;
11524 }
11525
c90c39da 11526 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), attrbuf);
7bdbe400
JB		 11527 if (IS_ERR(*wdev))
11528 *wdev = NULL;
11529
c90c39da 11530 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
7bdbe400
JB		 11531 if (IS_ERR(*rdev)) {
11532 err = PTR_ERR(*rdev);
11533 goto out_unlock;
11534 }
11535
c90c39da
JB		 11536 vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]);
11537 subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
7bdbe400
JB		 11538
11539 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
11540 const struct wiphy_vendor_command *vcmd;
11541
11542 vcmd = &(*rdev)->wiphy.vendor_commands[i];
11543
11544 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11545 continue;
11546
11547 if (!vcmd->dumpit) {
11548 err = -EOPNOTSUPP;
11549 goto out_unlock;
11550 }
11551
11552 vcmd_idx = i;
11553 break;
11554 }
11555
11556 if (vcmd_idx < 0) {
11557 err = -EOPNOTSUPP;
11558 goto out_unlock;
11559 }
11560
c90c39da
JB		 11561 if (attrbuf[NL80211_ATTR_VENDOR_DATA]) {
11562 data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]);
11563 data_len = nla_len(attrbuf[NL80211_ATTR_VENDOR_DATA]);
7bdbe400
JB		 11564 }
11565
11566 /* 0 is the first index - add 1 to parse only once */
11567 cb->args[0] = (*rdev)->wiphy_idx + 1;
11568 /* add 1 to know if it was NULL */
11569 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
11570 cb->args[2] = vcmd_idx;
11571 cb->args[3] = (unsigned long)data;
11572 cb->args[4] = data_len;
11573
11574 /* keep rtnl locked in successful case */
11575 return 0;
11576 out_unlock:
11577 rtnl_unlock();
11578 return err;
11579}
11580
11581static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
11582 struct netlink_callback *cb)
11583{
11584 struct cfg80211_registered_device *rdev;
11585 struct wireless_dev *wdev;
11586 unsigned int vcmd_idx;
11587 const struct wiphy_vendor_command *vcmd;
11588 void *data;
11589 int data_len;
11590 int err;
11591 struct nlattr *vendor_data;
11592
11593 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
11594 if (err)
11595 return err;
11596
11597 vcmd_idx = cb->args[2];
11598 data = (void *)cb->args[3];
11599 data_len = cb->args[4];
11600 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
11601
11602 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11603 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11604 if (!wdev)
11605 return -EINVAL;
11606 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11607 !wdev->netdev)
11608 return -EINVAL;
11609
11610 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
73c7da3d 11611 if (!wdev_running(wdev))
7bdbe400
JB		 11612 return -ENETDOWN;
11613 }
11614 }
11615
11616 while (1) {
11617 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
11618 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11619 NL80211_CMD_VENDOR);
11620 if (!hdr)
11621 break;
11622
11623 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 11624 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
11625 wdev_id(wdev),
11626 NL80211_ATTR_PAD))) {
7bdbe400
JB		 11627 genlmsg_cancel(skb, hdr);
11628 break;
11629 }
11630
11631 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
11632 if (!vendor_data) {
11633 genlmsg_cancel(skb, hdr);
11634 break;
11635 }
11636
11637 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
11638 (unsigned long *)&cb->args[5]);
11639 nla_nest_end(skb, vendor_data);
11640
11641 if (err == -ENOBUFS || err == -ENOENT) {
11642 genlmsg_cancel(skb, hdr);
11643 break;
11644 } else if (err) {
11645 genlmsg_cancel(skb, hdr);
11646 goto out;
11647 }
11648
11649 genlmsg_end(skb, hdr);
11650 }
11651
11652 err = skb->len;
11653 out:
11654 rtnl_unlock();
11655 return err;
11656}
11657
ad7e718c
JB		 11658struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
11659 enum nl80211_commands cmd,
11660 enum nl80211_attrs attr,
11661 int approxlen)
11662{
f26cbf40 11663 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 11664
11665 if (WARN_ON(!rdev->cur_cmd_info))
11666 return NULL;
11667
6c09e791 11668 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 11669 rdev->cur_cmd_info->snd_portid,
11670 rdev->cur_cmd_info->snd_seq,
567ffc35 11671 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 11672}
11673EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
11674
11675int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
11676{
11677 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
11678 void *hdr = ((void **)skb->cb)[1];
11679 struct nlattr *data = ((void **)skb->cb)[2];
11680
bd8c78e7
JB		 11681 /* clear CB data for netlink core to own from now on */
11682 memset(skb->cb, 0, sizeof(skb->cb));
11683
ad7e718c
JB		 11684 if (WARN_ON(!rdev->cur_cmd_info)) {
11685 kfree_skb(skb);
11686 return -EINVAL;
11687 }
11688
11689 nla_nest_end(skb, data);
11690 genlmsg_end(skb, hdr);
11691 return genlmsg_reply(skb, rdev->cur_cmd_info);
11692}
11693EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
11694
fa9ffc74
KP		 11695static int nl80211_set_qos_map(struct sk_buff *skb,
11696 struct genl_info *info)
11697{
11698 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11699 struct cfg80211_qos_map *qos_map = NULL;
11700 struct net_device *dev = info->user_ptr[1];
11701 u8 *pos, len, num_des, des_len, des;
11702 int ret;
11703
11704 if (!rdev->ops->set_qos_map)
11705 return -EOPNOTSUPP;
11706
11707 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
11708 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
11709 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
11710
11711 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
11712 len > IEEE80211_QOS_MAP_LEN_MAX)
11713 return -EINVAL;
11714
11715 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
11716 if (!qos_map)
11717 return -ENOMEM;
11718
11719 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
11720 if (num_des) {
11721 des_len = num_des *
11722 sizeof(struct cfg80211_dscp_exception);
11723 memcpy(qos_map->dscp_exception, pos, des_len);
11724 qos_map->num_des = num_des;
11725 for (des = 0; des < num_des; des++) {
11726 if (qos_map->dscp_exception[des].up > 7) {
11727 kfree(qos_map);
11728 return -EINVAL;
11729 }
11730 }
11731 pos += des_len;
11732 }
11733 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
11734 }
11735
11736 wdev_lock(dev->ieee80211_ptr);
11737 ret = nl80211_key_allowed(dev->ieee80211_ptr);
11738 if (!ret)
11739 ret = rdev_set_qos_map(rdev, dev, qos_map);
11740 wdev_unlock(dev->ieee80211_ptr);
11741
11742 kfree(qos_map);
11743 return ret;
11744}
11745
960d01ac
JB		 11746static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
11747{
11748 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11749 struct net_device *dev = info->user_ptr[1];
11750 struct wireless_dev *wdev = dev->ieee80211_ptr;
11751 const u8 *peer;
11752 u8 tsid, up;
11753 u16 admitted_time = 0;
11754 int err;
11755
723e73ac 11756 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 11757 return -EOPNOTSUPP;
11758
11759 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
11760 !info->attrs[NL80211_ATTR_USER_PRIO])
11761 return -EINVAL;
11762
11763 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
11764 if (tsid >= IEEE80211_NUM_TIDS)
11765 return -EINVAL;
11766
11767 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
11768 if (up >= IEEE80211_NUM_UPS)
11769 return -EINVAL;
11770
11771 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 11772 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 11773 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 11774 * need more attributes for that (e.g. BA session requirement);
11775 * change the WMM adminssion test above to allow both then
960d01ac
JB		 11776 */
11777 return -EINVAL;
11778 }
11779
11780 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11781
11782 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
11783 admitted_time =
11784 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
11785 if (!admitted_time)
11786 return -EINVAL;
11787 }
11788
11789 wdev_lock(wdev);
11790 switch (wdev->iftype) {
11791 case NL80211_IFTYPE_STATION:
11792 case NL80211_IFTYPE_P2P_CLIENT:
11793 if (wdev->current_bss)
11794 break;
11795 err = -ENOTCONN;
11796 goto out;
11797 default:
11798 err = -EOPNOTSUPP;
11799 goto out;
11800 }
11801
11802 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
11803
11804 out:
11805 wdev_unlock(wdev);
11806 return err;
11807}
11808
11809static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
11810{
11811 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11812 struct net_device *dev = info->user_ptr[1];
11813 struct wireless_dev *wdev = dev->ieee80211_ptr;
11814 const u8 *peer;
11815 u8 tsid;
11816 int err;
11817
11818 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
11819 return -EINVAL;
11820
11821 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
11822 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11823
11824 wdev_lock(wdev);
11825 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
11826 wdev_unlock(wdev);
11827
11828 return err;
11829}
11830
1057d35e
AN		 11831static int nl80211_tdls_channel_switch(struct sk_buff *skb,
11832 struct genl_info *info)
11833{
11834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11835 struct net_device *dev = info->user_ptr[1];
11836 struct wireless_dev *wdev = dev->ieee80211_ptr;
11837 struct cfg80211_chan_def chandef = {};
11838 const u8 *addr;
11839 u8 oper_class;
11840 int err;
11841
11842 if (!rdev->ops->tdls_channel_switch ||
11843 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
11844 return -EOPNOTSUPP;
11845
11846 switch (dev->ieee80211_ptr->iftype) {
11847 case NL80211_IFTYPE_STATION:
11848 case NL80211_IFTYPE_P2P_CLIENT:
11849 break;
11850 default:
11851 return -EOPNOTSUPP;
11852 }
11853
11854 if (!info->attrs[NL80211_ATTR_MAC] ||
11855 !info->attrs[NL80211_ATTR_OPER_CLASS])
11856 return -EINVAL;
11857
11858 err = nl80211_parse_chandef(rdev, info, &chandef);
11859 if (err)
11860 return err;
11861
11862 /*
11863 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
11864 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
11865 * specification is not defined for them.
11866 */
57fbcce3 11867 if (chandef.chan->band == NL80211_BAND_2GHZ &&
1057d35e
AN		 11868 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
11869 chandef.width != NL80211_CHAN_WIDTH_20)
11870 return -EINVAL;
11871
11872 /* we will be active on the TDLS link */
923b352f
AN		 11873 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
11874 wdev->iftype))
1057d35e
AN		 11875 return -EINVAL;
11876
11877 /* don't allow switching to DFS channels */
11878 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
11879 return -EINVAL;
11880
11881 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11882 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
11883
11884 wdev_lock(wdev);
11885 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
11886 wdev_unlock(wdev);
11887
11888 return err;
11889}
11890
11891static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
11892 struct genl_info *info)
11893{
11894 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11895 struct net_device *dev = info->user_ptr[1];
11896 struct wireless_dev *wdev = dev->ieee80211_ptr;
11897 const u8 *addr;
11898
11899 if (!rdev->ops->tdls_channel_switch ||
11900 !rdev->ops->tdls_cancel_channel_switch ||
11901 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
11902 return -EOPNOTSUPP;
11903
11904 switch (dev->ieee80211_ptr->iftype) {
11905 case NL80211_IFTYPE_STATION:
11906 case NL80211_IFTYPE_P2P_CLIENT:
11907 break;
11908 default:
11909 return -EOPNOTSUPP;
11910 }
11911
11912 if (!info->attrs[NL80211_ATTR_MAC])
11913 return -EINVAL;
11914
11915 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11916
11917 wdev_lock(wdev);
11918 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
11919 wdev_unlock(wdev);
11920
11921 return 0;
11922}
11923
ce0ce13a
MB		 11924static int nl80211_set_multicast_to_unicast(struct sk_buff *skb,
11925 struct genl_info *info)
11926{
11927 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11928 struct net_device *dev = info->user_ptr[1];
11929 struct wireless_dev *wdev = dev->ieee80211_ptr;
11930 const struct nlattr *nla;
11931 bool enabled;
11932
ce0ce13a
MB		 11933 if (!rdev->ops->set_multicast_to_unicast)
11934 return -EOPNOTSUPP;
11935
11936 if (wdev->iftype != NL80211_IFTYPE_AP &&
11937 wdev->iftype != NL80211_IFTYPE_P2P_GO)
11938 return -EOPNOTSUPP;
11939
11940 nla = info->attrs[NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED];
11941 enabled = nla_get_flag(nla);
11942
11943 return rdev_set_multicast_to_unicast(rdev, dev, enabled);
11944}
11945
4c476991
JB		 11946#define NL80211_FLAG_NEED_WIPHY 0x01
11947#define NL80211_FLAG_NEED_NETDEV 0x02
11948#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 11949#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
11950#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
11951 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 11952#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 11953/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 11954#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
11955 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 11956#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 11957
f84f771d 11958static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 11959 struct genl_info *info)
11960{
11961 struct cfg80211_registered_device *rdev;
89a54e48 11962 struct wireless_dev *wdev;
4c476991 11963 struct net_device *dev;
4c476991
JB		 11964 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
11965
11966 if (rtnl)
11967 rtnl_lock();
11968
11969 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 11970 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 11971 if (IS_ERR(rdev)) {
11972 if (rtnl)
11973 rtnl_unlock();
11974 return PTR_ERR(rdev);
11975 }
11976 info->user_ptr[0] = rdev;
1bf614ef
JB		 11977 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
11978 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 11979 ASSERT_RTNL();
11980
89a54e48
JB		 11981 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
11982 info->attrs);
11983 if (IS_ERR(wdev)) {
4c476991
JB		 11984 if (rtnl)
11985 rtnl_unlock();
89a54e48 11986 return PTR_ERR(wdev);
4c476991 11987 }
89a54e48 11988
89a54e48 11989 dev = wdev->netdev;
f26cbf40 11990 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 11991
1bf614ef
JB		 11992 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
11993 if (!dev) {
1bf614ef
JB		 11994 if (rtnl)
11995 rtnl_unlock();
11996 return -EINVAL;
11997 }
11998
11999 info->user_ptr[1] = dev;
12000 } else {
12001 info->user_ptr[1] = wdev;
41265714 12002 }
1bf614ef 12003
73c7da3d
AVS		 12004 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
12005 !wdev_running(wdev)) {
12006 if (rtnl)
12007 rtnl_unlock();
12008 return -ENETDOWN;
12009 }
1bf614ef 12010
73c7da3d 12011 if (dev)
1bf614ef 12012 dev_hold(dev);
89a54e48 12013
4c476991 12014 info->user_ptr[0] = rdev;
4c476991
JB		 12015 }
12016
12017 return 0;
12018}
12019
f84f771d 12020static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 12021 struct genl_info *info)
12022{
1bf614ef
JB		 12023 if (info->user_ptr[1]) {
12024 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
12025 struct wireless_dev *wdev = info->user_ptr[1];
12026
12027 if (wdev->netdev)
12028 dev_put(wdev->netdev);
12029 } else {
12030 dev_put(info->user_ptr[1]);
12031 }
12032 }
5393b917 12033
4c476991
JB		 12034 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
12035 rtnl_unlock();
5393b917
JB		 12036
12037 /* If needed, clear the netlink message payload from the SKB
12038 * as it might contain key data that shouldn't stick around on
12039 * the heap after the SKB is freed. The netlink message header
12040 * is still needed for further processing, so leave it intact.
12041 */
12042 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
12043 struct nlmsghdr *nlh = nlmsg_hdr(skb);
12044
12045 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
12046 }
4c476991
JB		 12047}
12048
4534de83 12049static const struct genl_ops nl80211_ops[] = {
55682965
JB		 12050 {
12051 .cmd = NL80211_CMD_GET_WIPHY,
12052 .doit = nl80211_get_wiphy,
12053 .dumpit = nl80211_dump_wiphy,
86e8cf98 12054 .done = nl80211_dump_wiphy_done,
55682965
JB		 12055 .policy = nl80211_policy,
12056 /* can be retrieved by unprivileged users */
5fe231e8
JB		 12057 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12058 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12059 },
12060 {
12061 .cmd = NL80211_CMD_SET_WIPHY,
12062 .doit = nl80211_set_wiphy,
12063 .policy = nl80211_policy,
5617c6cd 12064 .flags = GENL_UNS_ADMIN_PERM,
4c476991 12065 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 12066 },
12067 {
12068 .cmd = NL80211_CMD_GET_INTERFACE,
12069 .doit = nl80211_get_interface,
12070 .dumpit = nl80211_dump_interface,
12071 .policy = nl80211_policy,
12072 /* can be retrieved by unprivileged users */
5fe231e8
JB		 12073 .internal_flags = NL80211_FLAG_NEED_WDEV |
12074 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12075 },
12076 {
12077 .cmd = NL80211_CMD_SET_INTERFACE,
12078 .doit = nl80211_set_interface,
12079 .policy = nl80211_policy,
5617c6cd 12080 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12081 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12082 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12083 },
12084 {
12085 .cmd = NL80211_CMD_NEW_INTERFACE,
12086 .doit = nl80211_new_interface,
12087 .policy = nl80211_policy,
5617c6cd 12088 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12089 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12090 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12091 },
12092 {
12093 .cmd = NL80211_CMD_DEL_INTERFACE,
12094 .doit = nl80211_del_interface,
12095 .policy = nl80211_policy,
5617c6cd 12096 .flags = GENL_UNS_ADMIN_PERM,
84efbb84 12097 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 12098 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 12099 },
12100 {
12101 .cmd = NL80211_CMD_GET_KEY,
12102 .doit = nl80211_get_key,
12103 .policy = nl80211_policy,
5617c6cd 12104 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12105 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12106 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 12107 },
12108 {
12109 .cmd = NL80211_CMD_SET_KEY,
12110 .doit = nl80211_set_key,
12111 .policy = nl80211_policy,
5617c6cd 12112 .flags = GENL_UNS_ADMIN_PERM,
41265714 12113 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12114 NL80211_FLAG_NEED_RTNL |
12115 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 12116 },
12117 {
12118 .cmd = NL80211_CMD_NEW_KEY,
12119 .doit = nl80211_new_key,
12120 .policy = nl80211_policy,
5617c6cd 12121 .flags = GENL_UNS_ADMIN_PERM,
41265714 12122 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12123 NL80211_FLAG_NEED_RTNL |
12124 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 12125 },
12126 {
12127 .cmd = NL80211_CMD_DEL_KEY,
12128 .doit = nl80211_del_key,
12129 .policy = nl80211_policy,
5617c6cd 12130 .flags = GENL_UNS_ADMIN_PERM,
41265714 12131 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12132 NL80211_FLAG_NEED_RTNL,
55682965 12133 },
ed1b6cc7
JB		 12134 {
12135 .cmd = NL80211_CMD_SET_BEACON,
12136 .policy = nl80211_policy,
5617c6cd 12137 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12138 .doit = nl80211_set_beacon,
2b5f8b0b 12139 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12140 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 12141 },
12142 {
8860020e 12143 .cmd = NL80211_CMD_START_AP,
ed1b6cc7 12144 .policy = nl80211_policy,
5617c6cd 12145 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12146 .doit = nl80211_start_ap,
2b5f8b0b 12147 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12148 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 12149 },
12150 {
8860020e 12151 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7 12152 .policy = nl80211_policy,
5617c6cd 12153 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12154 .doit = nl80211_stop_ap,
2b5f8b0b 12155 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12156 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 12157 },
5727ef1b
JB		 12158 {
12159 .cmd = NL80211_CMD_GET_STATION,
12160 .doit = nl80211_get_station,
2ec600d6 12161 .dumpit = nl80211_dump_station,
5727ef1b 12162 .policy = nl80211_policy,
4c476991
JB		 12163 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12164 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12165 },
12166 {
12167 .cmd = NL80211_CMD_SET_STATION,
12168 .doit = nl80211_set_station,
12169 .policy = nl80211_policy,
5617c6cd 12170 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12171 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12172 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12173 },
12174 {
12175 .cmd = NL80211_CMD_NEW_STATION,
12176 .doit = nl80211_new_station,
12177 .policy = nl80211_policy,
5617c6cd 12178 .flags = GENL_UNS_ADMIN_PERM,
41265714 12179 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12180 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12181 },
12182 {
12183 .cmd = NL80211_CMD_DEL_STATION,
12184 .doit = nl80211_del_station,
12185 .policy = nl80211_policy,
5617c6cd 12186 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12187 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12188 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12189 },
12190 {
12191 .cmd = NL80211_CMD_GET_MPATH,
12192 .doit = nl80211_get_mpath,
12193 .dumpit = nl80211_dump_mpath,
12194 .policy = nl80211_policy,
5617c6cd 12195 .flags = GENL_UNS_ADMIN_PERM,
41265714 12196 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12197 NL80211_FLAG_NEED_RTNL,
2ec600d6 12198 },
66be7d2b
HR		 12199 {
12200 .cmd = NL80211_CMD_GET_MPP,
12201 .doit = nl80211_get_mpp,
12202 .dumpit = nl80211_dump_mpp,
12203 .policy = nl80211_policy,
5617c6cd 12204 .flags = GENL_UNS_ADMIN_PERM,
66be7d2b
HR		 12205 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12206 NL80211_FLAG_NEED_RTNL,
12207 },
2ec600d6
LCC		 12208 {
12209 .cmd = NL80211_CMD_SET_MPATH,
12210 .doit = nl80211_set_mpath,
12211 .policy = nl80211_policy,
5617c6cd 12212 .flags = GENL_UNS_ADMIN_PERM,
41265714 12213 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12214 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12215 },
12216 {
12217 .cmd = NL80211_CMD_NEW_MPATH,
12218 .doit = nl80211_new_mpath,
12219 .policy = nl80211_policy,
5617c6cd 12220 .flags = GENL_UNS_ADMIN_PERM,
41265714 12221 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12222 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12223 },
12224 {
12225 .cmd = NL80211_CMD_DEL_MPATH,
12226 .doit = nl80211_del_mpath,
12227 .policy = nl80211_policy,
5617c6cd 12228 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12229 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12230 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 12231 },
12232 {
12233 .cmd = NL80211_CMD_SET_BSS,
12234 .doit = nl80211_set_bss,
12235 .policy = nl80211_policy,
5617c6cd 12236 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12237 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12238 NL80211_FLAG_NEED_RTNL,
b2e1b302 12239 },
f130347c
LR		 12240 {
12241 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 12242 .doit = nl80211_get_reg_do,
12243 .dumpit = nl80211_get_reg_dump,
f130347c 12244 .policy = nl80211_policy,
5fe231e8 12245 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 12246 /* can be retrieved by unprivileged users */
12247 },
b6863036 12248#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 12249 {
12250 .cmd = NL80211_CMD_SET_REG,
12251 .doit = nl80211_set_reg,
12252 .policy = nl80211_policy,
12253 .flags = GENL_ADMIN_PERM,
5fe231e8 12254 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 12255 },
b6863036 12256#endif
b2e1b302
LR		 12257 {
12258 .cmd = NL80211_CMD_REQ_SET_REG,
12259 .doit = nl80211_req_set_reg,
12260 .policy = nl80211_policy,
93da9cc1 12261 .flags = GENL_ADMIN_PERM,
12262 },
12263 {
24bdd9f4
JC		 12264 .cmd = NL80211_CMD_GET_MESH_CONFIG,
12265 .doit = nl80211_get_mesh_config,
93da9cc1 12266 .policy = nl80211_policy,
12267 /* can be retrieved by unprivileged users */
2b5f8b0b 12268 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12269 NL80211_FLAG_NEED_RTNL,
93da9cc1 12270 },
12271 {
24bdd9f4
JC		 12272 .cmd = NL80211_CMD_SET_MESH_CONFIG,
12273 .doit = nl80211_update_mesh_config,
93da9cc1 12274 .policy = nl80211_policy,
5617c6cd 12275 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c 12276 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12277 NL80211_FLAG_NEED_RTNL,
9aed3cc1 12278 },
2a519311
JB		 12279 {
12280 .cmd = NL80211_CMD_TRIGGER_SCAN,
12281 .doit = nl80211_trigger_scan,
12282 .policy = nl80211_policy,
5617c6cd 12283 .flags = GENL_UNS_ADMIN_PERM,
fd014284 12284 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12285 NL80211_FLAG_NEED_RTNL,
2a519311 12286 },
91d3ab46
VK		 12287 {
12288 .cmd = NL80211_CMD_ABORT_SCAN,
12289 .doit = nl80211_abort_scan,
12290 .policy = nl80211_policy,
5617c6cd 12291 .flags = GENL_UNS_ADMIN_PERM,
91d3ab46
VK		 12292 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12293 NL80211_FLAG_NEED_RTNL,
12294 },
2a519311
JB		 12295 {
12296 .cmd = NL80211_CMD_GET_SCAN,
12297 .policy = nl80211_policy,
12298 .dumpit = nl80211_dump_scan,
12299 },
807f8a8c
LC		 12300 {
12301 .cmd = NL80211_CMD_START_SCHED_SCAN,
12302 .doit = nl80211_start_sched_scan,
12303 .policy = nl80211_policy,
5617c6cd 12304 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 12305 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12306 NL80211_FLAG_NEED_RTNL,
12307 },
12308 {
12309 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
12310 .doit = nl80211_stop_sched_scan,
12311 .policy = nl80211_policy,
5617c6cd 12312 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 12313 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12314 NL80211_FLAG_NEED_RTNL,
12315 },
636a5d36
JM		 12316 {
12317 .cmd = NL80211_CMD_AUTHENTICATE,
12318 .doit = nl80211_authenticate,
12319 .policy = nl80211_policy,
5617c6cd 12320 .flags = GENL_UNS_ADMIN_PERM,
41265714 12321 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12322 NL80211_FLAG_NEED_RTNL |
12323 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 12324 },
12325 {
12326 .cmd = NL80211_CMD_ASSOCIATE,
12327 .doit = nl80211_associate,
12328 .policy = nl80211_policy,
5617c6cd 12329 .flags = GENL_UNS_ADMIN_PERM,
41265714 12330 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12331 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 12332 },
12333 {
12334 .cmd = NL80211_CMD_DEAUTHENTICATE,
12335 .doit = nl80211_deauthenticate,
12336 .policy = nl80211_policy,
5617c6cd 12337 .flags = GENL_UNS_ADMIN_PERM,
41265714 12338 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12339 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 12340 },
12341 {
12342 .cmd = NL80211_CMD_DISASSOCIATE,
12343 .doit = nl80211_disassociate,
12344 .policy = nl80211_policy,
5617c6cd 12345 .flags = GENL_UNS_ADMIN_PERM,
41265714 12346 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12347 NL80211_FLAG_NEED_RTNL,
636a5d36 12348 },
04a773ad
JB		 12349 {
12350 .cmd = NL80211_CMD_JOIN_IBSS,
12351 .doit = nl80211_join_ibss,
12352 .policy = nl80211_policy,
5617c6cd 12353 .flags = GENL_UNS_ADMIN_PERM,
41265714 12354 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12355 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 12356 },
12357 {
12358 .cmd = NL80211_CMD_LEAVE_IBSS,
12359 .doit = nl80211_leave_ibss,
12360 .policy = nl80211_policy,
5617c6cd 12361 .flags = GENL_UNS_ADMIN_PERM,
41265714 12362 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12363 NL80211_FLAG_NEED_RTNL,
04a773ad 12364 },
aff89a9b
JB		 12365#ifdef CONFIG_NL80211_TESTMODE
12366 {
12367 .cmd = NL80211_CMD_TESTMODE,
12368 .doit = nl80211_testmode_do,
71063f0e 12369 .dumpit = nl80211_testmode_dump,
aff89a9b 12370 .policy = nl80211_policy,
5617c6cd 12371 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12372 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12373 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 12374 },
12375#endif
b23aa676
SO		 12376 {
12377 .cmd = NL80211_CMD_CONNECT,
12378 .doit = nl80211_connect,
12379 .policy = nl80211_policy,
5617c6cd 12380 .flags = GENL_UNS_ADMIN_PERM,
41265714 12381 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12382 NL80211_FLAG_NEED_RTNL,
b23aa676 12383 },
088e8df8 12384 {
12385 .cmd = NL80211_CMD_UPDATE_CONNECT_PARAMS,
12386 .doit = nl80211_update_connect_params,
12387 .policy = nl80211_policy,
12388 .flags = GENL_ADMIN_PERM,
12389 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12390 NL80211_FLAG_NEED_RTNL,
12391 },
b23aa676
SO		 12392 {
12393 .cmd = NL80211_CMD_DISCONNECT,
12394 .doit = nl80211_disconnect,
12395 .policy = nl80211_policy,
5617c6cd 12396 .flags = GENL_UNS_ADMIN_PERM,
41265714 12397 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12398 NL80211_FLAG_NEED_RTNL,
b23aa676 12399 },
463d0183
JB		 12400 {
12401 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
12402 .doit = nl80211_wiphy_netns,
12403 .policy = nl80211_policy,
5617c6cd 12404 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12405 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12406 NL80211_FLAG_NEED_RTNL,
463d0183 12407 },
61fa713c
HS		 12408 {
12409 .cmd = NL80211_CMD_GET_SURVEY,
12410 .policy = nl80211_policy,
12411 .dumpit = nl80211_dump_survey,
12412 },
67fbb16b
SO		 12413 {
12414 .cmd = NL80211_CMD_SET_PMKSA,
12415 .doit = nl80211_setdel_pmksa,
12416 .policy = nl80211_policy,
5617c6cd 12417 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12418 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12419 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 12420 },
12421 {
12422 .cmd = NL80211_CMD_DEL_PMKSA,
12423 .doit = nl80211_setdel_pmksa,
12424 .policy = nl80211_policy,
5617c6cd 12425 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12426 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12427 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 12428 },
12429 {
12430 .cmd = NL80211_CMD_FLUSH_PMKSA,
12431 .doit = nl80211_flush_pmksa,
12432 .policy = nl80211_policy,
5617c6cd 12433 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12434 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12435 NL80211_FLAG_NEED_RTNL,
67fbb16b 12436 },
9588bbd5
JM		 12437 {
12438 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
12439 .doit = nl80211_remain_on_channel,
12440 .policy = nl80211_policy,
5617c6cd 12441 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12442 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12443 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 12444 },
12445 {
12446 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12447 .doit = nl80211_cancel_remain_on_channel,
12448 .policy = nl80211_policy,
5617c6cd 12449 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12450 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12451 NL80211_FLAG_NEED_RTNL,
9588bbd5 12452 },
13ae75b1
JM		 12453 {
12454 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
12455 .doit = nl80211_set_tx_bitrate_mask,
12456 .policy = nl80211_policy,
5617c6cd 12457 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12458 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12459 NL80211_FLAG_NEED_RTNL,
13ae75b1 12460 },
026331c4 12461 {
2e161f78
JB		 12462 .cmd = NL80211_CMD_REGISTER_FRAME,
12463 .doit = nl80211_register_mgmt,
026331c4 12464 .policy = nl80211_policy,
5617c6cd 12465 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12466 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 12467 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 12468 },
12469 {
2e161f78
JB		 12470 .cmd = NL80211_CMD_FRAME,
12471 .doit = nl80211_tx_mgmt,
026331c4 12472 .policy = nl80211_policy,
5617c6cd 12473 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12474 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 12475 NL80211_FLAG_NEED_RTNL,
12476 },
12477 {
12478 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
12479 .doit = nl80211_tx_mgmt_cancel_wait,
12480 .policy = nl80211_policy,
5617c6cd 12481 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12482 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12483 NL80211_FLAG_NEED_RTNL,
026331c4 12484 },
ffb9eb3d
KV		 12485 {
12486 .cmd = NL80211_CMD_SET_POWER_SAVE,
12487 .doit = nl80211_set_power_save,
12488 .policy = nl80211_policy,
5617c6cd 12489 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12490 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12491 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 12492 },
12493 {
12494 .cmd = NL80211_CMD_GET_POWER_SAVE,
12495 .doit = nl80211_get_power_save,
12496 .policy = nl80211_policy,
12497 /* can be retrieved by unprivileged users */
4c476991
JB		 12498 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12499 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 12500 },
d6dc1a38
JO		 12501 {
12502 .cmd = NL80211_CMD_SET_CQM,
12503 .doit = nl80211_set_cqm,
12504 .policy = nl80211_policy,
5617c6cd 12505 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12506 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12507 NL80211_FLAG_NEED_RTNL,
d6dc1a38 12508 },
f444de05
JB		 12509 {
12510 .cmd = NL80211_CMD_SET_CHANNEL,
12511 .doit = nl80211_set_channel,
12512 .policy = nl80211_policy,
5617c6cd 12513 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12514 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12515 NL80211_FLAG_NEED_RTNL,
f444de05 12516 },
e8347eba
BJ		 12517 {
12518 .cmd = NL80211_CMD_SET_WDS_PEER,
12519 .doit = nl80211_set_wds_peer,
12520 .policy = nl80211_policy,
5617c6cd 12521 .flags = GENL_UNS_ADMIN_PERM,
43b19952
JB		 12522 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12523 NL80211_FLAG_NEED_RTNL,
e8347eba 12524 },
29cbe68c
JB		 12525 {
12526 .cmd = NL80211_CMD_JOIN_MESH,
12527 .doit = nl80211_join_mesh,
12528 .policy = nl80211_policy,
5617c6cd 12529 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 12530 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12531 NL80211_FLAG_NEED_RTNL,
12532 },
12533 {
12534 .cmd = NL80211_CMD_LEAVE_MESH,
12535 .doit = nl80211_leave_mesh,
12536 .policy = nl80211_policy,
5617c6cd 12537 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 12538 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12539 NL80211_FLAG_NEED_RTNL,
12540 },
6e0bd6c3
RL		 12541 {
12542 .cmd = NL80211_CMD_JOIN_OCB,
12543 .doit = nl80211_join_ocb,
12544 .policy = nl80211_policy,
5617c6cd 12545 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 12546 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12547 NL80211_FLAG_NEED_RTNL,
12548 },
12549 {
12550 .cmd = NL80211_CMD_LEAVE_OCB,
12551 .doit = nl80211_leave_ocb,
12552 .policy = nl80211_policy,
5617c6cd 12553 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 12554 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12555 NL80211_FLAG_NEED_RTNL,
12556 },
dfb89c56 12557#ifdef CONFIG_PM
ff1b6e69
JB		 12558 {
12559 .cmd = NL80211_CMD_GET_WOWLAN,
12560 .doit = nl80211_get_wowlan,
12561 .policy = nl80211_policy,
12562 /* can be retrieved by unprivileged users */
12563 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12564 NL80211_FLAG_NEED_RTNL,
12565 },
12566 {
12567 .cmd = NL80211_CMD_SET_WOWLAN,
12568 .doit = nl80211_set_wowlan,
12569 .policy = nl80211_policy,
5617c6cd 12570 .flags = GENL_UNS_ADMIN_PERM,
ff1b6e69
JB		 12571 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12572 NL80211_FLAG_NEED_RTNL,
12573 },
dfb89c56 12574#endif
e5497d76
JB		 12575 {
12576 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
12577 .doit = nl80211_set_rekey_data,
12578 .policy = nl80211_policy,
5617c6cd 12579 .flags = GENL_UNS_ADMIN_PERM,
e5497d76 12580 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12581 NL80211_FLAG_NEED_RTNL |
12582 NL80211_FLAG_CLEAR_SKB,
e5497d76 12583 },
109086ce
AN		 12584 {
12585 .cmd = NL80211_CMD_TDLS_MGMT,
12586 .doit = nl80211_tdls_mgmt,
12587 .policy = nl80211_policy,
5617c6cd 12588 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 12589 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12590 NL80211_FLAG_NEED_RTNL,
12591 },
12592 {
12593 .cmd = NL80211_CMD_TDLS_OPER,
12594 .doit = nl80211_tdls_oper,
12595 .policy = nl80211_policy,
5617c6cd 12596 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 12597 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12598 NL80211_FLAG_NEED_RTNL,
12599 },
28946da7
JB		 12600 {
12601 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
12602 .doit = nl80211_register_unexpected_frame,
12603 .policy = nl80211_policy,
5617c6cd 12604 .flags = GENL_UNS_ADMIN_PERM,
28946da7
JB		 12605 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12606 NL80211_FLAG_NEED_RTNL,
12607 },
7f6cf311
JB		 12608 {
12609 .cmd = NL80211_CMD_PROBE_CLIENT,
12610 .doit = nl80211_probe_client,
12611 .policy = nl80211_policy,
5617c6cd 12612 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12613 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 12614 NL80211_FLAG_NEED_RTNL,
12615 },
5e760230
JB		 12616 {
12617 .cmd = NL80211_CMD_REGISTER_BEACONS,
12618 .doit = nl80211_register_beacons,
12619 .policy = nl80211_policy,
5617c6cd 12620 .flags = GENL_UNS_ADMIN_PERM,
5e760230
JB		 12621 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12622 NL80211_FLAG_NEED_RTNL,
12623 },
1d9d9213
SW		 12624 {
12625 .cmd = NL80211_CMD_SET_NOACK_MAP,
12626 .doit = nl80211_set_noack_map,
12627 .policy = nl80211_policy,
5617c6cd 12628 .flags = GENL_UNS_ADMIN_PERM,
1d9d9213
SW		 12629 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12630 NL80211_FLAG_NEED_RTNL,
12631 },
98104fde
JB		 12632 {
12633 .cmd = NL80211_CMD_START_P2P_DEVICE,
12634 .doit = nl80211_start_p2p_device,
12635 .policy = nl80211_policy,
5617c6cd 12636 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 12637 .internal_flags = NL80211_FLAG_NEED_WDEV |
12638 NL80211_FLAG_NEED_RTNL,
12639 },
12640 {
12641 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
12642 .doit = nl80211_stop_p2p_device,
12643 .policy = nl80211_policy,
5617c6cd 12644 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 12645 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12646 NL80211_FLAG_NEED_RTNL,
cb3b7d87
AB		 12647 },
12648 {
12649 .cmd = NL80211_CMD_START_NAN,
12650 .doit = nl80211_start_nan,
12651 .policy = nl80211_policy,
12652 .flags = GENL_ADMIN_PERM,
12653 .internal_flags = NL80211_FLAG_NEED_WDEV |
12654 NL80211_FLAG_NEED_RTNL,
12655 },
12656 {
12657 .cmd = NL80211_CMD_STOP_NAN,
12658 .doit = nl80211_stop_nan,
12659 .policy = nl80211_policy,
12660 .flags = GENL_ADMIN_PERM,
12661 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12662 NL80211_FLAG_NEED_RTNL,
a442b761
AB		 12663 },
12664 {
12665 .cmd = NL80211_CMD_ADD_NAN_FUNCTION,
12666 .doit = nl80211_nan_add_func,
12667 .policy = nl80211_policy,
12668 .flags = GENL_ADMIN_PERM,
12669 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12670 NL80211_FLAG_NEED_RTNL,
12671 },
12672 {
12673 .cmd = NL80211_CMD_DEL_NAN_FUNCTION,
12674 .doit = nl80211_nan_del_func,
12675 .policy = nl80211_policy,
12676 .flags = GENL_ADMIN_PERM,
12677 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12678 NL80211_FLAG_NEED_RTNL,
a5a9dcf2
AB		 12679 },
12680 {
12681 .cmd = NL80211_CMD_CHANGE_NAN_CONFIG,
12682 .doit = nl80211_nan_change_config,
12683 .policy = nl80211_policy,
12684 .flags = GENL_ADMIN_PERM,
12685 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12686 NL80211_FLAG_NEED_RTNL,
98104fde 12687 },
f4e583c8
AQ		 12688 {
12689 .cmd = NL80211_CMD_SET_MCAST_RATE,
12690 .doit = nl80211_set_mcast_rate,
77765eaf 12691 .policy = nl80211_policy,
5617c6cd 12692 .flags = GENL_UNS_ADMIN_PERM,
77765eaf
VT		 12693 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12694 NL80211_FLAG_NEED_RTNL,
12695 },
12696 {
12697 .cmd = NL80211_CMD_SET_MAC_ACL,
12698 .doit = nl80211_set_mac_acl,
f4e583c8 12699 .policy = nl80211_policy,
5617c6cd 12700 .flags = GENL_UNS_ADMIN_PERM,
f4e583c8
AQ		 12701 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12702 NL80211_FLAG_NEED_RTNL,
12703 },
04f39047
SW		 12704 {
12705 .cmd = NL80211_CMD_RADAR_DETECT,
12706 .doit = nl80211_start_radar_detection,
12707 .policy = nl80211_policy,
5617c6cd 12708 .flags = GENL_UNS_ADMIN_PERM,
04f39047
SW		 12709 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12710 NL80211_FLAG_NEED_RTNL,
12711 },
3713b4e3
JB		 12712 {
12713 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
12714 .doit = nl80211_get_protocol_features,
12715 .policy = nl80211_policy,
12716 },
355199e0
JM		 12717 {
12718 .cmd = NL80211_CMD_UPDATE_FT_IES,
12719 .doit = nl80211_update_ft_ies,
12720 .policy = nl80211_policy,
5617c6cd 12721 .flags = GENL_UNS_ADMIN_PERM,
355199e0
JM		 12722 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12723 NL80211_FLAG_NEED_RTNL,
12724 },
5de17984
AS		 12725 {
12726 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
12727 .doit = nl80211_crit_protocol_start,
12728 .policy = nl80211_policy,
5617c6cd 12729 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 12730 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12731 NL80211_FLAG_NEED_RTNL,
12732 },
12733 {
12734 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
12735 .doit = nl80211_crit_protocol_stop,
12736 .policy = nl80211_policy,
5617c6cd 12737 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 12738 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12739 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 12740 },
12741 {
12742 .cmd = NL80211_CMD_GET_COALESCE,
12743 .doit = nl80211_get_coalesce,
12744 .policy = nl80211_policy,
12745 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12746 NL80211_FLAG_NEED_RTNL,
12747 },
12748 {
12749 .cmd = NL80211_CMD_SET_COALESCE,
12750 .doit = nl80211_set_coalesce,
12751 .policy = nl80211_policy,
5617c6cd 12752 .flags = GENL_UNS_ADMIN_PERM,
be29b99a
AK		 12753 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12754 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 12755 },
12756 {
12757 .cmd = NL80211_CMD_CHANNEL_SWITCH,
12758 .doit = nl80211_channel_switch,
12759 .policy = nl80211_policy,
5617c6cd 12760 .flags = GENL_UNS_ADMIN_PERM,
16ef1fe2
SW		 12761 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12762 NL80211_FLAG_NEED_RTNL,
12763 },
ad7e718c
JB		 12764 {
12765 .cmd = NL80211_CMD_VENDOR,
12766 .doit = nl80211_vendor_cmd,
7bdbe400 12767 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c 12768 .policy = nl80211_policy,
5617c6cd 12769 .flags = GENL_UNS_ADMIN_PERM,
ad7e718c
JB		 12770 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12771 NL80211_FLAG_NEED_RTNL,
12772 },
fa9ffc74
KP		 12773 {
12774 .cmd = NL80211_CMD_SET_QOS_MAP,
12775 .doit = nl80211_set_qos_map,
12776 .policy = nl80211_policy,
5617c6cd 12777 .flags = GENL_UNS_ADMIN_PERM,
fa9ffc74
KP		 12778 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12779 NL80211_FLAG_NEED_RTNL,
12780 },
960d01ac
JB		 12781 {
12782 .cmd = NL80211_CMD_ADD_TX_TS,
12783 .doit = nl80211_add_tx_ts,
12784 .policy = nl80211_policy,
5617c6cd 12785 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 12786 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12787 NL80211_FLAG_NEED_RTNL,
12788 },
12789 {
12790 .cmd = NL80211_CMD_DEL_TX_TS,
12791 .doit = nl80211_del_tx_ts,
12792 .policy = nl80211_policy,
5617c6cd 12793 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 12794 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12795 NL80211_FLAG_NEED_RTNL,
12796 },
1057d35e
AN		 12797 {
12798 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
12799 .doit = nl80211_tdls_channel_switch,
12800 .policy = nl80211_policy,
5617c6cd 12801 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 12802 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12803 NL80211_FLAG_NEED_RTNL,
12804 },
12805 {
12806 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
12807 .doit = nl80211_tdls_cancel_channel_switch,
12808 .policy = nl80211_policy,
5617c6cd 12809 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 12810 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12811 NL80211_FLAG_NEED_RTNL,
12812 },
ce0ce13a
MB		 12813 {
12814 .cmd = NL80211_CMD_SET_MULTICAST_TO_UNICAST,
12815 .doit = nl80211_set_multicast_to_unicast,
12816 .policy = nl80211_policy,
12817 .flags = GENL_UNS_ADMIN_PERM,
12818 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12819 NL80211_FLAG_NEED_RTNL,
12820 },
55682965 12821};
9588bbd5 12822
56989f6d 12823static struct genl_family nl80211_fam __ro_after_init = {
489111e5
JB		 12824 .name = NL80211_GENL_NAME, /* have users key off the name instead */
12825 .hdrsize = 0, /* no private header */
12826 .version = 1, /* no particular meaning now */
12827 .maxattr = NL80211_ATTR_MAX,
12828 .netnsok = true,
12829 .pre_doit = nl80211_pre_doit,
12830 .post_doit = nl80211_post_doit,
12831 .module = THIS_MODULE,
12832 .ops = nl80211_ops,
12833 .n_ops = ARRAY_SIZE(nl80211_ops),
12834 .mcgrps = nl80211_mcgrps,
12835 .n_mcgrps = ARRAY_SIZE(nl80211_mcgrps),
12836};
12837
55682965
JB		 12838/* notification functions */
12839
3bb20556
JB		 12840void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
12841 enum nl80211_commands cmd)
55682965
JB		 12842{
12843 struct sk_buff *msg;
86e8cf98 12844 struct nl80211_dump_wiphy_state state = {};
55682965 12845
3bb20556
JB		 12846 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
12847 cmd != NL80211_CMD_DEL_WIPHY);
12848
fd2120ca 12849 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 12850 if (!msg)
12851 return;
12852
3bb20556 12853 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 12854 nlmsg_free(msg);
12855 return;
12856 }
12857
68eb5503 12858 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12859 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 12860}
12861
896ff063
DK		 12862void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
12863 struct wireless_dev *wdev,
12864 enum nl80211_commands cmd)
12865{
12866 struct sk_buff *msg;
12867
12868 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
12869 cmd != NL80211_CMD_DEL_INTERFACE);
12870
12871 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12872 if (!msg)
12873 return;
12874
12875 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
12876 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
12877 nlmsg_free(msg);
12878 return;
12879 }
12880
12881 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12882 NL80211_MCGRP_CONFIG, GFP_KERNEL);
12883}
12884
362a415d
JB		 12885static int nl80211_add_scan_req(struct sk_buff *msg,
12886 struct cfg80211_registered_device *rdev)
12887{
12888 struct cfg80211_scan_request *req = rdev->scan_req;
12889 struct nlattr *nest;
12890 int i;
12891
12892 if (WARN_ON(!req))
12893 return 0;
12894
12895 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
12896 if (!nest)
12897 goto nla_put_failure;
9360ffd1
DM		 12898 for (i = 0; i < req->n_ssids; i++) {
12899 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
12900 goto nla_put_failure;
12901 }
362a415d
JB		 12902 nla_nest_end(msg, nest);
12903
12904 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
12905 if (!nest)
12906 goto nla_put_failure;
9360ffd1
DM		 12907 for (i = 0; i < req->n_channels; i++) {
12908 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
12909 goto nla_put_failure;
12910 }
362a415d
JB		 12911 nla_nest_end(msg, nest);
12912
9360ffd1
DM		 12913 if (req->ie &&
12914 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
12915 goto nla_put_failure;
362a415d 12916
ae917c9f
JB		 12917 if (req->flags &&
12918 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
12919 goto nla_put_failure;
ed473771 12920
1d76250b
AS		 12921 if (req->info.scan_start_tsf &&
12922 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
12923 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
12924 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
12925 req->info.tsf_bssid)))
12926 goto nla_put_failure;
12927
362a415d
JB		 12928 return 0;
12929 nla_put_failure:
12930 return -ENOBUFS;
12931}
12932
505a2e88 12933static int nl80211_prep_scan_msg(struct sk_buff *msg,
a538e2d5 12934 struct cfg80211_registered_device *rdev,
fd014284 12935 struct wireless_dev *wdev,
15e47304 12936 u32 portid, u32 seq, int flags,
a538e2d5 12937 u32 cmd)
2a519311
JB		 12938{
12939 void *hdr;
12940
15e47304 12941 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 12942 if (!hdr)
12943 return -1;
12944
9360ffd1 12945 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 12946 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12947 wdev->netdev->ifindex)) ||
2dad624e
ND		 12948 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12949 NL80211_ATTR_PAD))
9360ffd1 12950 goto nla_put_failure;
2a519311 12951
362a415d
JB		 12952 /* ignore errors and send incomplete event anyway */
12953 nl80211_add_scan_req(msg, rdev);
2a519311 12954
053c095a
JB		 12955 genlmsg_end(msg, hdr);
12956 return 0;
2a519311
JB		 12957
12958 nla_put_failure:
12959 genlmsg_cancel(msg, hdr);
12960 return -EMSGSIZE;
12961}
12962
807f8a8c 12963static int
505a2e88 12964nl80211_prep_sched_scan_msg(struct sk_buff *msg,
807f8a8c
LC		 12965 struct cfg80211_registered_device *rdev,
12966 struct net_device *netdev,
15e47304 12967 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 12968{
12969 void *hdr;
12970
15e47304 12971 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 12972 if (!hdr)
12973 return -1;
12974
9360ffd1
DM		 12975 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12976 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12977 goto nla_put_failure;
807f8a8c 12978
053c095a
JB		 12979 genlmsg_end(msg, hdr);
12980 return 0;
807f8a8c
LC		 12981
12982 nla_put_failure:
12983 genlmsg_cancel(msg, hdr);
12984 return -EMSGSIZE;
12985}
12986
a538e2d5 12987void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 12988 struct wireless_dev *wdev)
a538e2d5
JB		 12989{
12990 struct sk_buff *msg;
12991
58050fce 12992 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 12993 if (!msg)
12994 return;
12995
505a2e88 12996 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 12997 NL80211_CMD_TRIGGER_SCAN) < 0) {
12998 nlmsg_free(msg);
12999 return;
13000 }
13001
68eb5503 13002 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13003 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 13004}
13005
f9d15d16
JB		 13006struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
13007 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 13008{
13009 struct sk_buff *msg;
13010
fd2120ca 13011 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 13012 if (!msg)
f9d15d16 13013 return NULL;
2a519311 13014
505a2e88 13015 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 13016 aborted ? NL80211_CMD_SCAN_ABORTED :
13017 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 13018 nlmsg_free(msg);
f9d15d16 13019 return NULL;
2a519311
JB		 13020 }
13021
f9d15d16 13022 return msg;
2a519311
JB		 13023}
13024
505a2e88
AVS		 13025/* send message created by nl80211_build_scan_msg() */
13026void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev,
13027 struct sk_buff *msg)
807f8a8c 13028{
807f8a8c
LC		 13029 if (!msg)
13030 return;
13031
68eb5503 13032 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13033 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 13034}
13035
13036void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
13037 struct net_device *netdev, u32 cmd)
13038{
13039 struct sk_buff *msg;
13040
58050fce 13041 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 13042 if (!msg)
13043 return;
13044
505a2e88 13045 if (nl80211_prep_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
807f8a8c
LC		 13046 nlmsg_free(msg);
13047 return;
13048 }
13049
68eb5503 13050 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13051 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 13052}
13053
b0d7aa59
JD		 13054static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
13055 struct regulatory_request *request)
73d54c9e 13056{
73d54c9e 13057 /* Userspace can always count this one always being set */
9360ffd1
DM		 13058 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
13059 goto nla_put_failure;
13060
13061 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
13062 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13063 NL80211_REGDOM_TYPE_WORLD))
13064 goto nla_put_failure;
13065 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
13066 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13067 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
13068 goto nla_put_failure;
13069 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
13070 request->intersect) {
13071 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13072 NL80211_REGDOM_TYPE_INTERSECTION))
13073 goto nla_put_failure;
13074 } else {
13075 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13076 NL80211_REGDOM_TYPE_COUNTRY) ||
13077 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
13078 request->alpha2))
13079 goto nla_put_failure;
13080 }
13081
ad30ca2c
AN		 13082 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
13083 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
13084
13085 if (wiphy &&
13086 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
13087 goto nla_put_failure;
1bdd716c
AN		 13088
13089 if (wiphy &&
13090 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
13091 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
13092 goto nla_put_failure;
ad30ca2c 13093 }
73d54c9e 13094
b0d7aa59
JD		 13095 return true;
13096
13097nla_put_failure:
13098 return false;
13099}
13100
13101/*
13102 * This can happen on global regulatory changes or device specific settings
13103 * based on custom regulatory domains.
13104 */
13105void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
13106 struct regulatory_request *request)
13107{
13108 struct sk_buff *msg;
13109 void *hdr;
13110
13111 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13112 if (!msg)
13113 return;
13114
13115 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
13116 if (!hdr) {
13117 nlmsg_free(msg);
13118 return;
13119 }
13120
13121 if (nl80211_reg_change_event_fill(msg, request) == false)
13122 goto nla_put_failure;
13123
3b7b72ee 13124 genlmsg_end(msg, hdr);
73d54c9e 13125
bc43b28c 13126 rcu_read_lock();
68eb5503 13127 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 13128 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 13129 rcu_read_unlock();
73d54c9e
LR		 13130
13131 return;
13132
13133nla_put_failure:
13134 genlmsg_cancel(msg, hdr);
13135 nlmsg_free(msg);
13136}
13137
6039f6d2
JM		 13138static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
13139 struct net_device *netdev,
13140 const u8 *buf, size_t len,
b0b6aa2c
EP		 13141 enum nl80211_commands cmd, gfp_t gfp,
13142 int uapsd_queues)
6039f6d2
JM		 13143{
13144 struct sk_buff *msg;
13145 void *hdr;
13146
4ef8c1c9 13147 msg = nlmsg_new(100 + len, gfp);
6039f6d2
JM		 13148 if (!msg)
13149 return;
13150
13151 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13152 if (!hdr) {
13153 nlmsg_free(msg);
13154 return;
13155 }
13156
9360ffd1
DM		 13157 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13158 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13159 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
13160 goto nla_put_failure;
6039f6d2 13161
b0b6aa2c
EP		 13162 if (uapsd_queues >= 0) {
13163 struct nlattr *nla_wmm =
13164 nla_nest_start(msg, NL80211_ATTR_STA_WME);
13165 if (!nla_wmm)
13166 goto nla_put_failure;
13167
13168 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
13169 uapsd_queues))
13170 goto nla_put_failure;
13171
13172 nla_nest_end(msg, nla_wmm);
13173 }
13174
3b7b72ee 13175 genlmsg_end(msg, hdr);
6039f6d2 13176
68eb5503 13177 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13178 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 13179 return;
13180
13181 nla_put_failure:
13182 genlmsg_cancel(msg, hdr);
13183 nlmsg_free(msg);
13184}
13185
13186void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13187 struct net_device *netdev, const u8 *buf,
13188 size_t len, gfp_t gfp)
6039f6d2
JM		 13189{
13190 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13191 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 13192}
13193
13194void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
13195 struct net_device *netdev, const u8 *buf,
b0b6aa2c 13196 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 13197{
e6d6e342 13198 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13199 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 13200}
13201
53b46b84 13202void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13203 struct net_device *netdev, const u8 *buf,
13204 size_t len, gfp_t gfp)
6039f6d2
JM		 13205{
13206 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13207 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 13208}
13209
53b46b84
JM		 13210void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
13211 struct net_device *netdev, const u8 *buf,
e6d6e342 13212 size_t len, gfp_t gfp)
6039f6d2
JM		 13213{
13214 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13215 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 13216}
13217
6ff57cf8
JB		 13218void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
13219 size_t len)
cf4e594e 13220{
947add36
JB		 13221 struct wireless_dev *wdev = dev->ieee80211_ptr;
13222 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13223 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 13224 const struct ieee80211_mgmt *mgmt = (void *)buf;
13225 u32 cmd;
947add36 13226
6ff57cf8
JB		 13227 if (WARN_ON(len < 2))
13228 return;
cf4e594e 13229
6ff57cf8
JB		 13230 if (ieee80211_is_deauth(mgmt->frame_control))
13231 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
13232 else
13233 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 13234
6ff57cf8 13235 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 13236 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 13237}
6ff57cf8 13238EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 13239
1b06bb40
LR		 13240static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
13241 struct net_device *netdev, int cmd,
e6d6e342 13242 const u8 *addr, gfp_t gfp)
1965c853
JM		 13243{
13244 struct sk_buff *msg;
13245 void *hdr;
13246
e6d6e342 13247 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 13248 if (!msg)
13249 return;
13250
13251 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13252 if (!hdr) {
13253 nlmsg_free(msg);
13254 return;
13255 }
13256
9360ffd1
DM		 13257 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13258 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13259 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13260 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13261 goto nla_put_failure;
1965c853 13262
3b7b72ee 13263 genlmsg_end(msg, hdr);
1965c853 13264
68eb5503 13265 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13266 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 13267 return;
13268
13269 nla_put_failure:
13270 genlmsg_cancel(msg, hdr);
13271 nlmsg_free(msg);
13272}
13273
13274void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13275 struct net_device *netdev, const u8 *addr,
13276 gfp_t gfp)
1965c853
JM		 13277{
13278 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 13279 addr, gfp);
1965c853
JM		 13280}
13281
13282void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13283 struct net_device *netdev, const u8 *addr,
13284 gfp_t gfp)
1965c853 13285{
e6d6e342
JB		 13286 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
13287 addr, gfp);
1965c853
JM		 13288}
13289
b23aa676
SO		 13290void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
13291 struct net_device *netdev, const u8 *bssid,
13292 const u8 *req_ie, size_t req_ie_len,
13293 const u8 *resp_ie, size_t resp_ie_len,
3093ebbe
PK		 13294 int status,
13295 enum nl80211_timeout_reason timeout_reason,
13296 gfp_t gfp)
b23aa676
SO		 13297{
13298 struct sk_buff *msg;
13299 void *hdr;
13300
4ef8c1c9 13301 msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp);
b23aa676
SO		 13302 if (!msg)
13303 return;
13304
13305 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
13306 if (!hdr) {
13307 nlmsg_free(msg);
13308 return;
13309 }
13310
9360ffd1
DM		 13311 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13312 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13313 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
bf1ecd21
JM		 13314 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
13315 status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
13316 status) ||
3093ebbe
PK		 13317 (status < 0 &&
13318 (nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13319 nla_put_u32(msg, NL80211_ATTR_TIMEOUT_REASON, timeout_reason))) ||
9360ffd1
DM		 13320 (req_ie &&
13321 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
13322 (resp_ie &&
13323 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
13324 goto nla_put_failure;
b23aa676 13325
3b7b72ee 13326 genlmsg_end(msg, hdr);
b23aa676 13327
68eb5503 13328 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13329 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 13330 return;
13331
13332 nla_put_failure:
13333 genlmsg_cancel(msg, hdr);
13334 nlmsg_free(msg);
b23aa676
SO		 13335}
13336
13337void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
13338 struct net_device *netdev, const u8 *bssid,
13339 const u8 *req_ie, size_t req_ie_len,
13340 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
13341{
13342 struct sk_buff *msg;
13343 void *hdr;
13344
4ef8c1c9 13345 msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp);
b23aa676
SO		 13346 if (!msg)
13347 return;
13348
13349 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
13350 if (!hdr) {
13351 nlmsg_free(msg);
13352 return;
13353 }
13354
9360ffd1
DM		 13355 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13356 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13357 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
13358 (req_ie &&
13359 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
13360 (resp_ie &&
13361 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
13362 goto nla_put_failure;
b23aa676 13363
3b7b72ee 13364 genlmsg_end(msg, hdr);
b23aa676 13365
68eb5503 13366 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13367 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 13368 return;
13369
13370 nla_put_failure:
13371 genlmsg_cancel(msg, hdr);
13372 nlmsg_free(msg);
b23aa676
SO		 13373}
13374
13375void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
13376 struct net_device *netdev, u16 reason,
667503dd 13377 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 13378{
13379 struct sk_buff *msg;
13380 void *hdr;
13381
4ef8c1c9 13382 msg = nlmsg_new(100 + ie_len, GFP_KERNEL);
b23aa676
SO		 13383 if (!msg)
13384 return;
13385
13386 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
13387 if (!hdr) {
13388 nlmsg_free(msg);
13389 return;
13390 }
13391
9360ffd1
DM		 13392 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13393 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13394 (from_ap && reason &&
13395 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
13396 (from_ap &&
13397 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
13398 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
13399 goto nla_put_failure;
b23aa676 13400
3b7b72ee 13401 genlmsg_end(msg, hdr);
b23aa676 13402
68eb5503 13403 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13404 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 13405 return;
13406
13407 nla_put_failure:
13408 genlmsg_cancel(msg, hdr);
13409 nlmsg_free(msg);
b23aa676
SO		 13410}
13411
04a773ad
JB		 13412void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
13413 struct net_device *netdev, const u8 *bssid,
13414 gfp_t gfp)
13415{
13416 struct sk_buff *msg;
13417 void *hdr;
13418
fd2120ca 13419 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 13420 if (!msg)
13421 return;
13422
13423 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
13424 if (!hdr) {
13425 nlmsg_free(msg);
13426 return;
13427 }
13428
9360ffd1
DM		 13429 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13430 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13431 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13432 goto nla_put_failure;
04a773ad 13433
3b7b72ee 13434 genlmsg_end(msg, hdr);
04a773ad 13435
68eb5503 13436 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13437 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 13438 return;
13439
13440 nla_put_failure:
13441 genlmsg_cancel(msg, hdr);
13442 nlmsg_free(msg);
13443}
13444
947add36
JB		 13445void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
13446 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 13447{
947add36 13448 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13449 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 13450 struct sk_buff *msg;
13451 void *hdr;
13452
947add36
JB		 13453 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
13454 return;
13455
13456 trace_cfg80211_notify_new_peer_candidate(dev, addr);
13457
4ef8c1c9 13458 msg = nlmsg_new(100 + ie_len, gfp);
c93b5e71
JC		 13459 if (!msg)
13460 return;
13461
13462 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
13463 if (!hdr) {
13464 nlmsg_free(msg);
13465 return;
13466 }
13467
9360ffd1 13468 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 13469 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13470 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 13471 (ie_len && ie &&
13472 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
13473 goto nla_put_failure;
c93b5e71 13474
3b7b72ee 13475 genlmsg_end(msg, hdr);
c93b5e71 13476
68eb5503 13477 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13478 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 13479 return;
13480
13481 nla_put_failure:
13482 genlmsg_cancel(msg, hdr);
13483 nlmsg_free(msg);
13484}
947add36 13485EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 13486
a3b8b056
JM		 13487void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
13488 struct net_device *netdev, const u8 *addr,
13489 enum nl80211_key_type key_type, int key_id,
e6d6e342 13490 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 13491{
13492 struct sk_buff *msg;
13493 void *hdr;
13494
e6d6e342 13495 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 13496 if (!msg)
13497 return;
13498
13499 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
13500 if (!hdr) {
13501 nlmsg_free(msg);
13502 return;
13503 }
13504
9360ffd1
DM		 13505 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13506 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13507 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
13508 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
13509 (key_id != -1 &&
13510 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
13511 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
13512 goto nla_put_failure;
a3b8b056 13513
3b7b72ee 13514 genlmsg_end(msg, hdr);
a3b8b056 13515
68eb5503 13516 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13517 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 13518 return;
13519
13520 nla_put_failure:
13521 genlmsg_cancel(msg, hdr);
13522 nlmsg_free(msg);
13523}
13524
6bad8766
LR		 13525void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
13526 struct ieee80211_channel *channel_before,
13527 struct ieee80211_channel *channel_after)
13528{
13529 struct sk_buff *msg;
13530 void *hdr;
13531 struct nlattr *nl_freq;
13532
fd2120ca 13533 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 13534 if (!msg)
13535 return;
13536
13537 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
13538 if (!hdr) {
13539 nlmsg_free(msg);
13540 return;
13541 }
13542
13543 /*
13544 * Since we are applying the beacon hint to a wiphy we know its
13545 * wiphy_idx is valid
13546 */
9360ffd1
DM		 13547 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
13548 goto nla_put_failure;
6bad8766
LR		 13549
13550 /* Before */
13551 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
13552 if (!nl_freq)
13553 goto nla_put_failure;
cdc89b97 13554 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 13555 goto nla_put_failure;
13556 nla_nest_end(msg, nl_freq);
13557
13558 /* After */
13559 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
13560 if (!nl_freq)
13561 goto nla_put_failure;
cdc89b97 13562 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 13563 goto nla_put_failure;
13564 nla_nest_end(msg, nl_freq);
13565
3b7b72ee 13566 genlmsg_end(msg, hdr);
6bad8766 13567
463d0183 13568 rcu_read_lock();
68eb5503 13569 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 13570 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 13571 rcu_read_unlock();
6bad8766
LR		 13572
13573 return;
13574
13575nla_put_failure:
13576 genlmsg_cancel(msg, hdr);
13577 nlmsg_free(msg);
13578}
13579
9588bbd5
JM		 13580static void nl80211_send_remain_on_chan_event(
13581 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 13582 struct wireless_dev *wdev, u64 cookie,
9588bbd5 13583 struct ieee80211_channel *chan,
9588bbd5
JM		 13584 unsigned int duration, gfp_t gfp)
13585{
13586 struct sk_buff *msg;
13587 void *hdr;
13588
13589 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13590 if (!msg)
13591 return;
13592
13593 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13594 if (!hdr) {
13595 nlmsg_free(msg);
13596 return;
13597 }
13598
9360ffd1 13599 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 13600 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13601 wdev->netdev->ifindex)) ||
2dad624e
ND		 13602 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13603 NL80211_ATTR_PAD) ||
9360ffd1 13604 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 13605 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
13606 NL80211_CHAN_NO_HT) ||
2dad624e
ND		 13607 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13608 NL80211_ATTR_PAD))
9360ffd1 13609 goto nla_put_failure;
9588bbd5 13610
9360ffd1
DM		 13611 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
13612 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
13613 goto nla_put_failure;
9588bbd5 13614
3b7b72ee 13615 genlmsg_end(msg, hdr);
9588bbd5 13616
68eb5503 13617 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13618 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 13619 return;
13620
13621 nla_put_failure:
13622 genlmsg_cancel(msg, hdr);
13623 nlmsg_free(msg);
13624}
13625
947add36
JB		 13626void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
13627 struct ieee80211_channel *chan,
13628 unsigned int duration, gfp_t gfp)
9588bbd5 13629{
947add36 13630 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13631 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13632
13633 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 13634 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 13635 rdev, wdev, cookie, chan,
42d97a59 13636 duration, gfp);
9588bbd5 13637}
947add36 13638EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 13639
947add36
JB		 13640void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
13641 struct ieee80211_channel *chan,
13642 gfp_t gfp)
9588bbd5 13643{
947add36 13644 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13645 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13646
13647 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 13648 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 13649 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 13650}
947add36 13651EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 13652
947add36
JB		 13653void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
13654 struct station_info *sinfo, gfp_t gfp)
98b62183 13655{
947add36 13656 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 13657 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 13658 struct sk_buff *msg;
13659
947add36
JB		 13660 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
13661
58050fce 13662 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 13663 if (!msg)
13664 return;
13665
cf5ead82 13666 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 13667 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 13668 nlmsg_free(msg);
13669 return;
13670 }
13671
68eb5503 13672 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13673 NL80211_MCGRP_MLME, gfp);
98b62183 13674}
947add36 13675EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 13676
cf5ead82
JB		 13677void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
13678 struct station_info *sinfo, gfp_t gfp)
ec15e68b 13679{
947add36 13680 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 13681 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 13682 struct sk_buff *msg;
cf5ead82
JB		 13683 struct station_info empty_sinfo = {};
13684
13685 if (!sinfo)
13686 sinfo = &empty_sinfo;
ec15e68b 13687
947add36
JB		 13688 trace_cfg80211_del_sta(dev, mac_addr);
13689
58050fce 13690 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 13691 if (!msg)
13692 return;
13693
cf5ead82 13694 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 13695 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 13696 nlmsg_free(msg);
13697 return;
13698 }
13699
68eb5503 13700 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13701 NL80211_MCGRP_MLME, gfp);
ec15e68b 13702}
cf5ead82 13703EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 13704
947add36
JB		 13705void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
13706 enum nl80211_connect_failed_reason reason,
13707 gfp_t gfp)
ed44a951 13708{
947add36 13709 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 13710 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 13711 struct sk_buff *msg;
13712 void *hdr;
13713
13714 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
13715 if (!msg)
13716 return;
13717
13718 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
13719 if (!hdr) {
13720 nlmsg_free(msg);
13721 return;
13722 }
13723
13724 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13725 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
13726 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
13727 goto nla_put_failure;
13728
13729 genlmsg_end(msg, hdr);
13730
68eb5503 13731 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13732 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 13733 return;
13734
13735 nla_put_failure:
13736 genlmsg_cancel(msg, hdr);
13737 nlmsg_free(msg);
13738}
947add36 13739EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 13740
b92ab5d8
JB		 13741static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
13742 const u8 *addr, gfp_t gfp)
28946da7
JB		 13743{
13744 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13745 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 13746 struct sk_buff *msg;
13747 void *hdr;
15e47304 13748 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 13749
15e47304 13750 if (!nlportid)
28946da7
JB		 13751 return false;
13752
13753 msg = nlmsg_new(100, gfp);
13754 if (!msg)
13755 return true;
13756
b92ab5d8 13757 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 13758 if (!hdr) {
13759 nlmsg_free(msg);
13760 return true;
13761 }
13762
9360ffd1
DM		 13763 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13764 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13765 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13766 goto nla_put_failure;
28946da7 13767
9c90a9f6 13768 genlmsg_end(msg, hdr);
15e47304 13769 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 13770 return true;
13771
13772 nla_put_failure:
13773 genlmsg_cancel(msg, hdr);
13774 nlmsg_free(msg);
13775 return true;
13776}
13777
947add36
JB		 13778bool cfg80211_rx_spurious_frame(struct net_device *dev,
13779 const u8 *addr, gfp_t gfp)
b92ab5d8 13780{
947add36
JB		 13781 struct wireless_dev *wdev = dev->ieee80211_ptr;
13782 bool ret;
13783
13784 trace_cfg80211_rx_spurious_frame(dev, addr);
13785
13786 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
13787 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
13788 trace_cfg80211_return_bool(false);
13789 return false;
13790 }
13791 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
13792 addr, gfp);
13793 trace_cfg80211_return_bool(ret);
13794 return ret;
b92ab5d8 13795}
947add36 13796EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 13797
947add36
JB		 13798bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
13799 const u8 *addr, gfp_t gfp)
b92ab5d8 13800{
947add36
JB		 13801 struct wireless_dev *wdev = dev->ieee80211_ptr;
13802 bool ret;
13803
13804 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
13805
13806 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
13807 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
13808 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
13809 trace_cfg80211_return_bool(false);
13810 return false;
13811 }
13812 ret = __nl80211_unexpected_frame(dev,
13813 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
13814 addr, gfp);
13815 trace_cfg80211_return_bool(ret);
13816 return ret;
b92ab5d8 13817}
947add36 13818EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 13819
2e161f78 13820int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 13821 struct wireless_dev *wdev, u32 nlportid,
804483e9 13822 int freq, int sig_dbm,
19504cf5 13823 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 13824{
71bbc994 13825 struct net_device *netdev = wdev->netdev;
026331c4
JM		 13826 struct sk_buff *msg;
13827 void *hdr;
026331c4 13828
4ef8c1c9 13829 msg = nlmsg_new(100 + len, gfp);
026331c4
JM		 13830 if (!msg)
13831 return -ENOMEM;
13832
2e161f78 13833 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 13834 if (!hdr) {
13835 nlmsg_free(msg);
13836 return -ENOMEM;
13837 }
13838
9360ffd1 13839 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 13840 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13841 netdev->ifindex)) ||
2dad624e
ND		 13842 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13843 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13844 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
13845 (sig_dbm &&
13846 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 13847 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
13848 (flags &&
13849 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 13850 goto nla_put_failure;
026331c4 13851
3b7b72ee 13852 genlmsg_end(msg, hdr);
026331c4 13853
15e47304 13854 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 13855
13856 nla_put_failure:
13857 genlmsg_cancel(msg, hdr);
13858 nlmsg_free(msg);
13859 return -ENOBUFS;
13860}
13861
947add36
JB		 13862void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
13863 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 13864{
947add36 13865 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13866 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 13867 struct net_device *netdev = wdev->netdev;
026331c4
JM		 13868 struct sk_buff *msg;
13869 void *hdr;
13870
947add36
JB		 13871 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
13872
4ef8c1c9 13873 msg = nlmsg_new(100 + len, gfp);
026331c4
JM		 13874 if (!msg)
13875 return;
13876
2e161f78 13877 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 13878 if (!hdr) {
13879 nlmsg_free(msg);
13880 return;
13881 }
13882
9360ffd1 13883 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 13884 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13885 netdev->ifindex)) ||
2dad624e
ND		 13886 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13887 NL80211_ATTR_PAD) ||
9360ffd1 13888 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
2dad624e
ND		 13889 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13890 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13891 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
13892 goto nla_put_failure;
026331c4 13893
3b7b72ee 13894 genlmsg_end(msg, hdr);
026331c4 13895
68eb5503 13896 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13897 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 13898 return;
13899
13900 nla_put_failure:
13901 genlmsg_cancel(msg, hdr);
13902 nlmsg_free(msg);
13903}
947add36 13904EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 13905
5b97f49d
JB		 13906static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
13907 const char *mac, gfp_t gfp)
d6dc1a38 13908{
947add36 13909 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 13910 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13911 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13912 void **cb;
947add36 13913
d6dc1a38 13914 if (!msg)
5b97f49d 13915 return NULL;
d6dc1a38 13916
5b97f49d
JB		 13917 cb = (void **)msg->cb;
13918
13919 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
13920 if (!cb[0]) {
d6dc1a38 13921 nlmsg_free(msg);
5b97f49d 13922 return NULL;
d6dc1a38
JO		 13923 }
13924
9360ffd1 13925 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 13926 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 13927 goto nla_put_failure;
d6dc1a38 13928
5b97f49d 13929 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 13930 goto nla_put_failure;
13931
5b97f49d
JB		 13932 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
13933 if (!cb[1])
9360ffd1 13934 goto nla_put_failure;
d6dc1a38 13935
5b97f49d 13936 cb[2] = rdev;
d6dc1a38 13937
5b97f49d
JB		 13938 return msg;
13939 nla_put_failure:
13940 nlmsg_free(msg);
13941 return NULL;
13942}
13943
13944static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
13945{
13946 void **cb = (void **)msg->cb;
13947 struct cfg80211_registered_device *rdev = cb[2];
13948
13949 nla_nest_end(msg, cb[1]);
13950 genlmsg_end(msg, cb[0]);
13951
13952 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 13953
68eb5503 13954 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13955 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 13956}
13957
13958void cfg80211_cqm_rssi_notify(struct net_device *dev,
13959 enum nl80211_cqm_rssi_threshold_event rssi_event,
13960 gfp_t gfp)
13961{
13962 struct sk_buff *msg;
13963
13964 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
13965
98f03342
JB		 13966 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
13967 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
13968 return;
13969
5b97f49d
JB		 13970 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13971 if (!msg)
13972 return;
13973
13974 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
13975 rssi_event))
13976 goto nla_put_failure;
13977
13978 cfg80211_send_cqm(msg, gfp);
13979
d6dc1a38
JO		 13980 return;
13981
13982 nla_put_failure:
d6dc1a38
JO		 13983 nlmsg_free(msg);
13984}
947add36 13985EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 13986
5b97f49d
JB		 13987void cfg80211_cqm_txe_notify(struct net_device *dev,
13988 const u8 *peer, u32 num_packets,
13989 u32 rate, u32 intvl, gfp_t gfp)
13990{
13991 struct sk_buff *msg;
13992
13993 msg = cfg80211_prepare_cqm(dev, peer, gfp);
13994 if (!msg)
13995 return;
13996
13997 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
13998 goto nla_put_failure;
13999
14000 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
14001 goto nla_put_failure;
14002
14003 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
14004 goto nla_put_failure;
14005
14006 cfg80211_send_cqm(msg, gfp);
14007 return;
14008
14009 nla_put_failure:
14010 nlmsg_free(msg);
14011}
14012EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
14013
14014void cfg80211_cqm_pktloss_notify(struct net_device *dev,
14015 const u8 *peer, u32 num_packets, gfp_t gfp)
14016{
14017 struct sk_buff *msg;
14018
14019 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
14020
14021 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14022 if (!msg)
14023 return;
14024
14025 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
14026 goto nla_put_failure;
14027
14028 cfg80211_send_cqm(msg, gfp);
14029 return;
14030
14031 nla_put_failure:
14032 nlmsg_free(msg);
14033}
14034EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
14035
98f03342
JB		 14036void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
14037{
14038 struct sk_buff *msg;
14039
14040 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14041 if (!msg)
14042 return;
14043
14044 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
14045 goto nla_put_failure;
14046
14047 cfg80211_send_cqm(msg, gfp);
14048 return;
14049
14050 nla_put_failure:
14051 nlmsg_free(msg);
14052}
14053EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
14054
947add36
JB		 14055static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
14056 struct net_device *netdev, const u8 *bssid,
14057 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 14058{
14059 struct sk_buff *msg;
14060 struct nlattr *rekey_attr;
14061 void *hdr;
14062
58050fce 14063 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 14064 if (!msg)
14065 return;
14066
14067 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
14068 if (!hdr) {
14069 nlmsg_free(msg);
14070 return;
14071 }
14072
9360ffd1
DM		 14073 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14074 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14075 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14076 goto nla_put_failure;
e5497d76
JB		 14077
14078 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
14079 if (!rekey_attr)
14080 goto nla_put_failure;
14081
9360ffd1
DM		 14082 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
14083 NL80211_REPLAY_CTR_LEN, replay_ctr))
14084 goto nla_put_failure;
e5497d76
JB		 14085
14086 nla_nest_end(msg, rekey_attr);
14087
3b7b72ee 14088 genlmsg_end(msg, hdr);
e5497d76 14089
68eb5503 14090 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14091 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 14092 return;
14093
14094 nla_put_failure:
14095 genlmsg_cancel(msg, hdr);
14096 nlmsg_free(msg);
14097}
14098
947add36
JB		 14099void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
14100 const u8 *replay_ctr, gfp_t gfp)
14101{
14102 struct wireless_dev *wdev = dev->ieee80211_ptr;
14103 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14104 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14105
14106 trace_cfg80211_gtk_rekey_notify(dev, bssid);
14107 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
14108}
14109EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
14110
14111static void
14112nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
14113 struct net_device *netdev, int index,
14114 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 14115{
14116 struct sk_buff *msg;
14117 struct nlattr *attr;
14118 void *hdr;
14119
58050fce 14120 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 14121 if (!msg)
14122 return;
14123
14124 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
14125 if (!hdr) {
14126 nlmsg_free(msg);
14127 return;
14128 }
14129
9360ffd1
DM		 14130 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14131 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14132 goto nla_put_failure;
c9df56b4
JM		 14133
14134 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
14135 if (!attr)
14136 goto nla_put_failure;
14137
9360ffd1
DM		 14138 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
14139 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
14140 (preauth &&
14141 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
14142 goto nla_put_failure;
c9df56b4
JM		 14143
14144 nla_nest_end(msg, attr);
14145
3b7b72ee 14146 genlmsg_end(msg, hdr);
c9df56b4 14147
68eb5503 14148 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14149 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 14150 return;
14151
14152 nla_put_failure:
14153 genlmsg_cancel(msg, hdr);
14154 nlmsg_free(msg);
14155}
14156
947add36
JB		 14157void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
14158 const u8 *bssid, bool preauth, gfp_t gfp)
14159{
14160 struct wireless_dev *wdev = dev->ieee80211_ptr;
14161 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14162 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14163
14164 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
14165 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
14166}
14167EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
14168
14169static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
14170 struct net_device *netdev,
14171 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 14172 gfp_t gfp,
14173 enum nl80211_commands notif,
14174 u8 count)
5314526b
TP		 14175{
14176 struct sk_buff *msg;
14177 void *hdr;
14178
58050fce 14179 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 14180 if (!msg)
14181 return;
14182
f8d7552e 14183 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 14184 if (!hdr) {
14185 nlmsg_free(msg);
14186 return;
14187 }
14188
683b6d3b
JB		 14189 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14190 goto nla_put_failure;
14191
14192 if (nl80211_send_chandef(msg, chandef))
7eab0f64 14193 goto nla_put_failure;
5314526b 14194
f8d7552e
LC		 14195 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
14196 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
14197 goto nla_put_failure;
14198
5314526b
TP		 14199 genlmsg_end(msg, hdr);
14200
68eb5503 14201 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14202 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 14203 return;
14204
14205 nla_put_failure:
14206 genlmsg_cancel(msg, hdr);
14207 nlmsg_free(msg);
14208}
14209
947add36
JB		 14210void cfg80211_ch_switch_notify(struct net_device *dev,
14211 struct cfg80211_chan_def *chandef)
84f10708 14212{
947add36
JB		 14213 struct wireless_dev *wdev = dev->ieee80211_ptr;
14214 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14215 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 14216
e487eaeb 14217 ASSERT_WDEV_LOCK(wdev);
947add36 14218
e487eaeb 14219 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 14220
9e0e2961 14221 wdev->chandef = *chandef;
96f55f12 14222 wdev->preset_chandef = *chandef;
f8d7552e
LC		 14223 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14224 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 14225}
14226EXPORT_SYMBOL(cfg80211_ch_switch_notify);
14227
f8d7552e
LC		 14228void cfg80211_ch_switch_started_notify(struct net_device *dev,
14229 struct cfg80211_chan_def *chandef,
14230 u8 count)
14231{
14232 struct wireless_dev *wdev = dev->ieee80211_ptr;
14233 struct wiphy *wiphy = wdev->wiphy;
14234 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14235
14236 trace_cfg80211_ch_switch_started_notify(dev, chandef);
14237
14238 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14239 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
14240}
14241EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
14242
04f39047
SW		 14243void
14244nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 14245 const struct cfg80211_chan_def *chandef,
04f39047
SW		 14246 enum nl80211_radar_event event,
14247 struct net_device *netdev, gfp_t gfp)
14248{
14249 struct sk_buff *msg;
14250 void *hdr;
14251
14252 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14253 if (!msg)
14254 return;
14255
14256 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
14257 if (!hdr) {
14258 nlmsg_free(msg);
14259 return;
14260 }
14261
14262 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
14263 goto nla_put_failure;
14264
14265 /* NOP and radar events don't need a netdev parameter */
14266 if (netdev) {
14267 struct wireless_dev *wdev = netdev->ieee80211_ptr;
14268
14269 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
2dad624e
ND		 14270 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14271 NL80211_ATTR_PAD))
04f39047
SW		 14272 goto nla_put_failure;
14273 }
14274
14275 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
14276 goto nla_put_failure;
14277
14278 if (nl80211_send_chandef(msg, chandef))
14279 goto nla_put_failure;
14280
9c90a9f6 14281 genlmsg_end(msg, hdr);
04f39047 14282
68eb5503 14283 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14284 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 14285 return;
14286
14287 nla_put_failure:
14288 genlmsg_cancel(msg, hdr);
14289 nlmsg_free(msg);
14290}
14291
7f6cf311
JB		 14292void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
14293 u64 cookie, bool acked, gfp_t gfp)
14294{
14295 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14296 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 14297 struct sk_buff *msg;
14298 void *hdr;
7f6cf311 14299
4ee3e063
BL		 14300 trace_cfg80211_probe_status(dev, addr, cookie, acked);
14301
58050fce 14302 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 14303
7f6cf311
JB		 14304 if (!msg)
14305 return;
14306
14307 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
14308 if (!hdr) {
14309 nlmsg_free(msg);
14310 return;
14311 }
14312
9360ffd1
DM		 14313 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14314 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14315 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2dad624e
ND		 14316 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14317 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14318 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
14319 goto nla_put_failure;
7f6cf311 14320
9c90a9f6 14321 genlmsg_end(msg, hdr);
7f6cf311 14322
68eb5503 14323 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14324 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 14325 return;
14326
14327 nla_put_failure:
14328 genlmsg_cancel(msg, hdr);
14329 nlmsg_free(msg);
14330}
14331EXPORT_SYMBOL(cfg80211_probe_status);
14332
5e760230
JB		 14333void cfg80211_report_obss_beacon(struct wiphy *wiphy,
14334 const u8 *frame, size_t len,
37c73b5f 14335 int freq, int sig_dbm)
5e760230 14336{
f26cbf40 14337 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 14338 struct sk_buff *msg;
14339 void *hdr;
37c73b5f 14340 struct cfg80211_beacon_registration *reg;
5e760230 14341
4ee3e063
BL		 14342 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
14343
37c73b5f
BG		 14344 spin_lock_bh(&rdev->beacon_registrations_lock);
14345 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
14346 msg = nlmsg_new(len + 100, GFP_ATOMIC);
14347 if (!msg) {
14348 spin_unlock_bh(&rdev->beacon_registrations_lock);
14349 return;
14350 }
5e760230 14351
37c73b5f
BG		 14352 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
14353 if (!hdr)
14354 goto nla_put_failure;
5e760230 14355
37c73b5f
BG		 14356 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14357 (freq &&
14358 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
14359 (sig_dbm &&
14360 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
14361 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
14362 goto nla_put_failure;
5e760230 14363
37c73b5f 14364 genlmsg_end(msg, hdr);
5e760230 14365
37c73b5f
BG		 14366 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
14367 }
14368 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 14369 return;
14370
14371 nla_put_failure:
37c73b5f
BG		 14372 spin_unlock_bh(&rdev->beacon_registrations_lock);
14373 if (hdr)
14374 genlmsg_cancel(msg, hdr);
5e760230
JB		 14375 nlmsg_free(msg);
14376}
14377EXPORT_SYMBOL(cfg80211_report_obss_beacon);
14378
cd8f7cb4 14379#ifdef CONFIG_PM
8cd4d456
LC		 14380static int cfg80211_net_detect_results(struct sk_buff *msg,
14381 struct cfg80211_wowlan_wakeup *wakeup)
14382{
14383 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
14384 struct nlattr *nl_results, *nl_match, *nl_freqs;
14385 int i, j;
14386
14387 nl_results = nla_nest_start(
14388 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
14389 if (!nl_results)
14390 return -EMSGSIZE;
14391
14392 for (i = 0; i < nd->n_matches; i++) {
14393 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
14394
14395 nl_match = nla_nest_start(msg, i);
14396 if (!nl_match)
14397 break;
14398
14399 /* The SSID attribute is optional in nl80211, but for
14400 * simplicity reasons it's always present in the
14401 * cfg80211 structure. If a driver can't pass the
14402 * SSID, that needs to be changed. A zero length SSID
14403 * is still a valid SSID (wildcard), so it cannot be
14404 * used for this purpose.
14405 */
14406 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
14407 match->ssid.ssid)) {
14408 nla_nest_cancel(msg, nl_match);
14409 goto out;
14410 }
14411
14412 if (match->n_channels) {
14413 nl_freqs = nla_nest_start(
14414 msg, NL80211_ATTR_SCAN_FREQUENCIES);
14415 if (!nl_freqs) {
14416 nla_nest_cancel(msg, nl_match);
14417 goto out;
14418 }
14419
14420 for (j = 0; j < match->n_channels; j++) {
5528fae8 14421 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 14422 nla_nest_cancel(msg, nl_freqs);
14423 nla_nest_cancel(msg, nl_match);
14424 goto out;
14425 }
14426 }
14427
14428 nla_nest_end(msg, nl_freqs);
14429 }
14430
14431 nla_nest_end(msg, nl_match);
14432 }
14433
14434out:
14435 nla_nest_end(msg, nl_results);
14436 return 0;
14437}
14438
cd8f7cb4
JB		 14439void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
14440 struct cfg80211_wowlan_wakeup *wakeup,
14441 gfp_t gfp)
14442{
f26cbf40 14443 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 14444 struct sk_buff *msg;
14445 void *hdr;
9c90a9f6 14446 int size = 200;
cd8f7cb4
JB		 14447
14448 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
14449
14450 if (wakeup)
14451 size += wakeup->packet_present_len;
14452
14453 msg = nlmsg_new(size, gfp);
14454 if (!msg)
14455 return;
14456
14457 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
14458 if (!hdr)
14459 goto free_msg;
14460
14461 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 14462 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14463 NL80211_ATTR_PAD))
cd8f7cb4
JB		 14464 goto free_msg;
14465
14466 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14467 wdev->netdev->ifindex))
14468 goto free_msg;
14469
14470 if (wakeup) {
14471 struct nlattr *reasons;
14472
14473 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 14474 if (!reasons)
14475 goto free_msg;
cd8f7cb4
JB		 14476
14477 if (wakeup->disconnect &&
14478 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
14479 goto free_msg;
14480 if (wakeup->magic_pkt &&
14481 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
14482 goto free_msg;
14483 if (wakeup->gtk_rekey_failure &&
14484 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
14485 goto free_msg;
14486 if (wakeup->eap_identity_req &&
14487 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
14488 goto free_msg;
14489 if (wakeup->four_way_handshake &&
14490 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
14491 goto free_msg;
14492 if (wakeup->rfkill_release &&
14493 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
14494 goto free_msg;
14495
14496 if (wakeup->pattern_idx >= 0 &&
14497 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
14498 wakeup->pattern_idx))
14499 goto free_msg;
14500
ae917c9f
JB		 14501 if (wakeup->tcp_match &&
14502 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
14503 goto free_msg;
2a0e047e 14504
ae917c9f
JB		 14505 if (wakeup->tcp_connlost &&
14506 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
14507 goto free_msg;
2a0e047e 14508
ae917c9f
JB		 14509 if (wakeup->tcp_nomoretokens &&
14510 nla_put_flag(msg,
14511 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
14512 goto free_msg;
2a0e047e 14513
cd8f7cb4
JB		 14514 if (wakeup->packet) {
14515 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
14516 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
14517
14518 if (!wakeup->packet_80211) {
14519 pkt_attr =
14520 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
14521 len_attr =
14522 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
14523 }
14524
14525 if (wakeup->packet_len &&
14526 nla_put_u32(msg, len_attr, wakeup->packet_len))
14527 goto free_msg;
14528
14529 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
14530 wakeup->packet))
14531 goto free_msg;
14532 }
14533
8cd4d456
LC		 14534 if (wakeup->net_detect &&
14535 cfg80211_net_detect_results(msg, wakeup))
14536 goto free_msg;
14537
cd8f7cb4
JB		 14538 nla_nest_end(msg, reasons);
14539 }
14540
9c90a9f6 14541 genlmsg_end(msg, hdr);
cd8f7cb4 14542
68eb5503 14543 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14544 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 14545 return;
14546
14547 free_msg:
14548 nlmsg_free(msg);
14549}
14550EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
14551#endif
14552
3475b094
JM		 14553void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
14554 enum nl80211_tdls_operation oper,
14555 u16 reason_code, gfp_t gfp)
14556{
14557 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14558 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 14559 struct sk_buff *msg;
14560 void *hdr;
3475b094
JM		 14561
14562 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
14563 reason_code);
14564
14565 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14566 if (!msg)
14567 return;
14568
14569 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
14570 if (!hdr) {
14571 nlmsg_free(msg);
14572 return;
14573 }
14574
14575 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14576 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14577 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
14578 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
14579 (reason_code > 0 &&
14580 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
14581 goto nla_put_failure;
14582
9c90a9f6 14583 genlmsg_end(msg, hdr);
3475b094 14584
68eb5503 14585 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14586 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 14587 return;
14588
14589 nla_put_failure:
14590 genlmsg_cancel(msg, hdr);
14591 nlmsg_free(msg);
14592}
14593EXPORT_SYMBOL(cfg80211_tdls_oper_request);
14594
026331c4
JM		 14595static int nl80211_netlink_notify(struct notifier_block * nb,
14596 unsigned long state,
14597 void *_notify)
14598{
14599 struct netlink_notify *notify = _notify;
14600 struct cfg80211_registered_device *rdev;
14601 struct wireless_dev *wdev;
37c73b5f 14602 struct cfg80211_beacon_registration *reg, *tmp;
026331c4 14603
8f815cdd 14604 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
026331c4
JM		 14605 return NOTIFY_DONE;
14606
14607 rcu_read_lock();
14608
5e760230 14609 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 14610 bool schedule_destroy_work = false;
93a1e86c
JR		 14611 struct cfg80211_sched_scan_request *sched_scan_req =
14612 rcu_dereference(rdev->sched_scan_req);
14613
14614 if (sched_scan_req && notify->portid &&
753aacfd
JB		 14615 sched_scan_req->owner_nlportid == notify->portid) {
14616 sched_scan_req->owner_nlportid = 0;
14617
14618 if (rdev->ops->sched_scan_stop &&
14619 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
14620 schedule_work(&rdev->sched_scan_stop_wk);
14621 }
78f22b6a 14622
53873f13 14623 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15e47304 14624 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 14625
78f22b6a
JB		 14626 if (wdev->owner_nlportid == notify->portid)
14627 schedule_destroy_work = true;
bd2522b1
AZ		 14628 else if (wdev->conn_owner_nlportid == notify->portid)
14629 schedule_work(&wdev->disconnect_wk);
78f22b6a
JB		 14630 }
14631
37c73b5f
BG		 14632 spin_lock_bh(&rdev->beacon_registrations_lock);
14633 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
14634 list) {
14635 if (reg->nlportid == notify->portid) {
14636 list_del(&reg->list);
14637 kfree(reg);
14638 break;
14639 }
14640 }
14641 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 14642
14643 if (schedule_destroy_work) {
14644 struct cfg80211_iface_destroy *destroy;
14645
14646 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
14647 if (destroy) {
14648 destroy->nlportid = notify->portid;
14649 spin_lock(&rdev->destroy_list_lock);
14650 list_add(&destroy->list, &rdev->destroy_list);
14651 spin_unlock(&rdev->destroy_list_lock);
14652 schedule_work(&rdev->destroy_work);
14653 }
14654 }
5e760230 14655 }
026331c4
JM		 14656
14657 rcu_read_unlock();
14658
05050753
I		 14659 /*
14660 * It is possible that the user space process that is controlling the
14661 * indoor setting disappeared, so notify the regulatory core.
14662 */
14663 regulatory_netlink_notify(notify->portid);
6784c7db 14664 return NOTIFY_OK;
026331c4
JM		 14665}
14666
14667static struct notifier_block nl80211_netlink_notifier = {
14668 .notifier_call = nl80211_netlink_notify,
14669};
14670
355199e0
JM		 14671void cfg80211_ft_event(struct net_device *netdev,
14672 struct cfg80211_ft_event_params *ft_event)
14673{
14674 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 14675 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 14676 struct sk_buff *msg;
14677 void *hdr;
355199e0
JM		 14678
14679 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
14680
14681 if (!ft_event->target_ap)
14682 return;
14683
4ef8c1c9 14684 msg = nlmsg_new(100 + ft_event->ric_ies_len, GFP_KERNEL);
355199e0
JM		 14685 if (!msg)
14686 return;
14687
14688 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 14689 if (!hdr)
14690 goto out;
355199e0 14691
ae917c9f
JB		 14692 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14693 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14694 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
14695 goto out;
355199e0 14696
ae917c9f
JB		 14697 if (ft_event->ies &&
14698 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
14699 goto out;
14700 if (ft_event->ric_ies &&
14701 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
14702 ft_event->ric_ies))
14703 goto out;
355199e0 14704
9c90a9f6 14705 genlmsg_end(msg, hdr);
355199e0 14706
68eb5503 14707 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14708 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 14709 return;
14710 out:
14711 nlmsg_free(msg);
355199e0
JM		 14712}
14713EXPORT_SYMBOL(cfg80211_ft_event);
14714
5de17984
AS		 14715void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
14716{
14717 struct cfg80211_registered_device *rdev;
14718 struct sk_buff *msg;
14719 void *hdr;
14720 u32 nlportid;
14721
f26cbf40 14722 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 14723 if (!rdev->crit_proto_nlportid)
14724 return;
14725
14726 nlportid = rdev->crit_proto_nlportid;
14727 rdev->crit_proto_nlportid = 0;
14728
14729 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14730 if (!msg)
14731 return;
14732
14733 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
14734 if (!hdr)
14735 goto nla_put_failure;
14736
14737 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 14738 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14739 NL80211_ATTR_PAD))
5de17984
AS		 14740 goto nla_put_failure;
14741
14742 genlmsg_end(msg, hdr);
14743
14744 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
14745 return;
14746
14747 nla_put_failure:
14748 if (hdr)
14749 genlmsg_cancel(msg, hdr);
14750 nlmsg_free(msg);
5de17984
AS		 14751}
14752EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
14753
348baf0e
JB		 14754void nl80211_send_ap_stopped(struct wireless_dev *wdev)
14755{
14756 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14757 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 14758 struct sk_buff *msg;
14759 void *hdr;
14760
14761 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14762 if (!msg)
14763 return;
14764
14765 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
14766 if (!hdr)
14767 goto out;
14768
14769 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14770 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
2dad624e
ND		 14771 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14772 NL80211_ATTR_PAD))
348baf0e
JB		 14773 goto out;
14774
14775 genlmsg_end(msg, hdr);
14776
14777 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
14778 NL80211_MCGRP_MLME, GFP_KERNEL);
14779 return;
14780 out:
14781 nlmsg_free(msg);
14782}
14783
55682965
JB		 14784/* initialisation/exit functions */
14785
56989f6d 14786int __init nl80211_init(void)
55682965 14787{
0d63cbb5 14788 int err;
55682965 14789
489111e5 14790 err = genl_register_family(&nl80211_fam);
55682965
JB		 14791 if (err)
14792 return err;
14793
026331c4
JM		 14794 err = netlink_register_notifier(&nl80211_netlink_notifier);
14795 if (err)
14796 goto err_out;
14797
55682965
JB		 14798 return 0;
14799 err_out:
14800 genl_unregister_family(&nl80211_fam);
14801 return err;
14802}
14803
14804void nl80211_exit(void)
14805{
026331c4 14806 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 14807 genl_unregister_family(&nl80211_fam);
14808}
ubuntu-bionic-kernel mirror