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cfg80211: Use a structure to pass connect response params
[mirror_ubuntu-focal-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
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 400 [NL80211_ATTR_NAN_MASTER_PREF] = { .type = NLA_U8 },
8585989d 401 [NL80211_ATTR_BANDS] = { .type = NLA_U32 },
a442b761 402 [NL80211_ATTR_NAN_FUNC] = { .type = NLA_NESTED },
348bd456
JM		 403 [NL80211_ATTR_FILS_KEK] = { .type = NLA_BINARY,
404 .len = FILS_MAX_KEK_LEN },
405 [NL80211_ATTR_FILS_NONCES] = { .len = 2 * FILS_NONCE_LEN },
ce0ce13a 406 [NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED] = { .type = NLA_FLAG, },
2fa436b3 407 [NL80211_ATTR_BSSID] = { .len = ETH_ALEN },
bf95ecdb 408 [NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] = { .type = NLA_S8 },
409 [NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST] = {
410 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
411 },
3093ebbe 412 [NL80211_ATTR_TIMEOUT_REASON] = { .type = NLA_U32 },
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
8585989d
LC		 1889 if (nla_put_u32(msg, NL80211_ATTR_BANDS,
1890 rdev->wiphy.nan_supported_bands))
1891 goto nla_put_failure;
1892
3713b4e3 1893 /* done */
86e8cf98 1894 state->split_start = 0;
3713b4e3
JB		 1895 break;
1896 }
3bb20556 1897 finish:
053c095a
JB		 1898 genlmsg_end(msg, hdr);
1899 return 0;
55682965
JB		 1900
1901 nla_put_failure:
bc3ed28c
TG		 1902 genlmsg_cancel(msg, hdr);
1903 return -EMSGSIZE;
55682965
JB		 1904}
1905
86e8cf98
JB		 1906static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1907 struct netlink_callback *cb,
1908 struct nl80211_dump_wiphy_state *state)
1909{
c90c39da 1910 struct nlattr **tb = genl_family_attrbuf(&nl80211_fam);
86e8cf98
JB		 1911 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1912 tb, nl80211_fam.maxattr, nl80211_policy);
1913 /* ignore parse errors for backward compatibility */
1914 if (ret)
1915 return 0;
1916
1917 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1918 if (tb[NL80211_ATTR_WIPHY])
1919 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1920 if (tb[NL80211_ATTR_WDEV])
1921 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1922 if (tb[NL80211_ATTR_IFINDEX]) {
1923 struct net_device *netdev;
1924 struct cfg80211_registered_device *rdev;
1925 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1926
7f2b8562 1927 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1928 if (!netdev)
1929 return -ENODEV;
1930 if (netdev->ieee80211_ptr) {
f26cbf40 1931 rdev = wiphy_to_rdev(
86e8cf98
JB		 1932 netdev->ieee80211_ptr->wiphy);
1933 state->filter_wiphy = rdev->wiphy_idx;
1934 }
86e8cf98
JB		 1935 }
1936
1937 return 0;
1938}
1939
55682965
JB		 1940static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1941{
645e77de 1942 int idx = 0, ret;
86e8cf98 1943 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1944 struct cfg80211_registered_device *rdev;
3a5a423b 1945
5fe231e8 1946 rtnl_lock();
86e8cf98
JB		 1947 if (!state) {
1948 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1949 if (!state) {
1950 rtnl_unlock();
86e8cf98 1951 return -ENOMEM;
3713b4e3 1952 }
86e8cf98
JB		 1953 state->filter_wiphy = -1;
1954 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1955 if (ret) {
1956 kfree(state);
1957 rtnl_unlock();
1958 return ret;
3713b4e3 1959 }
86e8cf98 1960 cb->args[0] = (long)state;
3713b4e3
JB		 1961 }
1962
1b8ec87a
ZG		 1963 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1964 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1965 continue;
86e8cf98 1966 if (++idx <= state->start)
55682965 1967 continue;
86e8cf98 1968 if (state->filter_wiphy != -1 &&
1b8ec87a 1969 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1970 continue;
1971 /* attempt to fit multiple wiphy data chunks into the skb */
1972 do {
3bb20556
JB		 1973 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1974 skb,
3713b4e3
JB		 1975 NETLINK_CB(cb->skb).portid,
1976 cb->nlh->nlmsg_seq,
86e8cf98 1977 NLM_F_MULTI, state);
3713b4e3
JB		 1978 if (ret < 0) {
1979 /*
1980 * If sending the wiphy data didn't fit (ENOBUFS
1981 * or EMSGSIZE returned), this SKB is still
1982 * empty (so it's not too big because another
1983 * wiphy dataset is already in the skb) and
1984 * we've not tried to adjust the dump allocation
1985 * yet ... then adjust the alloc size to be
1986 * bigger, and return 1 but with the empty skb.
1987 * This results in an empty message being RX'ed
1988 * in userspace, but that is ignored.
1989 *
1990 * We can then retry with the larger buffer.
1991 */
1992 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1993 !skb->len && !state->split &&
3713b4e3
JB		 1994 cb->min_dump_alloc < 4096) {
1995 cb->min_dump_alloc = 4096;
f12cb289 1996 state->split_start = 0;
d98cae64 1997 rtnl_unlock();
3713b4e3
JB		 1998 return 1;
1999 }
2000 idx--;
2001 break;
645e77de 2002 }
86e8cf98 2003 } while (state->split_start > 0);
3713b4e3 2004 break;
55682965 2005 }
5fe231e8 2006 rtnl_unlock();
55682965 2007
86e8cf98 2008 state->start = idx;
55682965
JB		 2009
2010 return skb->len;
2011}
2012
86e8cf98
JB		 2013static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
2014{
2015 kfree((void *)cb->args[0]);
2016 return 0;
2017}
2018
55682965
JB		 2019static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
2020{
2021 struct sk_buff *msg;
1b8ec87a 2022 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 2023 struct nl80211_dump_wiphy_state state = {};
55682965 2024
645e77de 2025 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 2026 if (!msg)
4c476991 2027 return -ENOMEM;
55682965 2028
3bb20556
JB		 2029 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
2030 info->snd_portid, info->snd_seq, 0,
86e8cf98 2031 &state) < 0) {
4c476991
JB		 2032 nlmsg_free(msg);
2033 return -ENOBUFS;
2034 }
55682965 2035
134e6375 2036 return genlmsg_reply(msg, info);
55682965
JB		 2037}
2038
31888487
JM		 2039static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
2040 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
2041 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
2042 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
2043 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
2044 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
2045};
2046
2047static int parse_txq_params(struct nlattr *tb[],
2048 struct ieee80211_txq_params *txq_params)
2049{
a3304b0a 2050 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 2051 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
2052 !tb[NL80211_TXQ_ATTR_AIFS])
2053 return -EINVAL;
2054
a3304b0a 2055 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 2056 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
2057 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
2058 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
2059 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
2060
a3304b0a
JB		 2061 if (txq_params->ac >= NL80211_NUM_ACS)
2062 return -EINVAL;
2063
31888487
JM		 2064 return 0;
2065}
2066
f444de05
JB		 2067static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2068{
2069 /*
cc1d2806
JB		 2070 * You can only set the channel explicitly for WDS interfaces,
2071 * all others have their channel managed via their respective
2072 * "establish a connection" command (connect, join, ...)
2073 *
2074 * For AP/GO and mesh mode, the channel can be set with the
2075 * channel userspace API, but is only stored and passed to the
2076 * low-level driver when the AP starts or the mesh is joined.
2077 * This is for backward compatibility, userspace can also give
2078 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 2079 *
2080 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 2081 * whatever else is going on, so they have their own special
2082 * operation to set the monitor channel if possible.
f444de05
JB		 2083 */
2084 return !wdev ||
2085 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 2086 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 2087 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2088 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 2089}
2090
683b6d3b
JB		 2091static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2092 struct genl_info *info,
2093 struct cfg80211_chan_def *chandef)
2094{
dbeca2ea 2095 u32 control_freq;
683b6d3b
JB		 2096
2097 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2098 return -EINVAL;
2099
2100 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2101
2102 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 2103 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2104 chandef->center_freq1 = control_freq;
2105 chandef->center_freq2 = 0;
683b6d3b
JB		 2106
2107 /* Primary channel not allowed */
2108 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2109 return -EINVAL;
2110
3d9d1d66
JB		 2111 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2112 enum nl80211_channel_type chantype;
2113
2114 chantype = nla_get_u32(
2115 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2116
2117 switch (chantype) {
2118 case NL80211_CHAN_NO_HT:
2119 case NL80211_CHAN_HT20:
2120 case NL80211_CHAN_HT40PLUS:
2121 case NL80211_CHAN_HT40MINUS:
2122 cfg80211_chandef_create(chandef, chandef->chan,
2123 chantype);
2124 break;
2125 default:
2126 return -EINVAL;
2127 }
2128 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2129 chandef->width =
2130 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2131 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2132 chandef->center_freq1 =
2133 nla_get_u32(
2134 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2135 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2136 chandef->center_freq2 =
2137 nla_get_u32(
2138 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2139 }
2140
9f5e8f6e 2141 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 2142 return -EINVAL;
2143
9f5e8f6e
JB		 2144 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2145 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 2146 return -EINVAL;
2147
2f301ab2
SW		 2148 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2149 chandef->width == NL80211_CHAN_WIDTH_10) &&
2150 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2151 return -EINVAL;
2152
683b6d3b
JB		 2153 return 0;
2154}
2155
f444de05 2156static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 2157 struct net_device *dev,
f444de05
JB		 2158 struct genl_info *info)
2159{
683b6d3b 2160 struct cfg80211_chan_def chandef;
f444de05 2161 int result;
e8c9bd5b 2162 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2163 struct wireless_dev *wdev = NULL;
e8c9bd5b 2164
e16821bc
JM		 2165 if (dev)
2166 wdev = dev->ieee80211_ptr;
f444de05
JB		 2167 if (!nl80211_can_set_dev_channel(wdev))
2168 return -EOPNOTSUPP;
e16821bc
JM		 2169 if (wdev)
2170 iftype = wdev->iftype;
f444de05 2171
683b6d3b
JB		 2172 result = nl80211_parse_chandef(rdev, info, &chandef);
2173 if (result)
2174 return result;
f444de05 2175
e8c9bd5b 2176 switch (iftype) {
aa430da4
JB		 2177 case NL80211_IFTYPE_AP:
2178 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2179 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2180 iftype)) {
aa430da4
JB		 2181 result = -EINVAL;
2182 break;
2183 }
e16821bc
JM		 2184 if (wdev->beacon_interval) {
2185 if (!dev || !rdev->ops->set_ap_chanwidth ||
2186 !(rdev->wiphy.features &
2187 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2188 result = -EBUSY;
2189 break;
2190 }
2191
2192 /* Only allow dynamic channel width changes */
2193 if (chandef.chan != wdev->preset_chandef.chan) {
2194 result = -EBUSY;
2195 break;
2196 }
2197 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2198 if (result)
2199 break;
2200 }
683b6d3b 2201 wdev->preset_chandef = chandef;
aa430da4
JB		 2202 result = 0;
2203 break;
cc1d2806 2204 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2205 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2206 break;
e8c9bd5b 2207 case NL80211_IFTYPE_MONITOR:
683b6d3b 2208 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2209 break;
aa430da4 2210 default:
e8c9bd5b 2211 result = -EINVAL;
f444de05 2212 }
f444de05
JB		 2213
2214 return result;
2215}
2216
2217static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2218{
4c476991
JB		 2219 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2220 struct net_device *netdev = info->user_ptr[1];
f444de05 2221
e16821bc 2222 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2223}
2224
e8347eba
BJ		 2225static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2226{
43b19952
JB		 2227 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2228 struct net_device *dev = info->user_ptr[1];
2229 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2230 const u8 *bssid;
e8347eba
BJ		 2231
2232 if (!info->attrs[NL80211_ATTR_MAC])
2233 return -EINVAL;
2234
43b19952
JB		 2235 if (netif_running(dev))
2236 return -EBUSY;
e8347eba 2237
43b19952
JB		 2238 if (!rdev->ops->set_wds_peer)
2239 return -EOPNOTSUPP;
e8347eba 2240
43b19952
JB		 2241 if (wdev->iftype != NL80211_IFTYPE_WDS)
2242 return -EOPNOTSUPP;
e8347eba
BJ		 2243
2244 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2245 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2246}
2247
55682965
JB		 2248static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2249{
2250 struct cfg80211_registered_device *rdev;
f444de05
JB		 2251 struct net_device *netdev = NULL;
2252 struct wireless_dev *wdev;
a1e567c8 2253 int result = 0, rem_txq_params = 0;
31888487 2254 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2255 u32 changed;
2256 u8 retry_short = 0, retry_long = 0;
2257 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2258 u8 coverage_class = 0;
55682965 2259
5fe231e8
JB		 2260 ASSERT_RTNL();
2261
f444de05
JB		 2262 /*
2263 * Try to find the wiphy and netdev. Normally this
2264 * function shouldn't need the netdev, but this is
2265 * done for backward compatibility -- previously
2266 * setting the channel was done per wiphy, but now
2267 * it is per netdev. Previous userland like hostapd
2268 * also passed a netdev to set_wiphy, so that it is
2269 * possible to let that go to the right netdev!
2270 */
4bbf4d56 2271
f444de05
JB		 2272 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2273 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2274
7f2b8562 2275 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2276 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2277 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2278 else
f444de05 2279 netdev = NULL;
4bbf4d56
JB		 2280 }
2281
f444de05 2282 if (!netdev) {
878d9ec7
JB		 2283 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2284 info->attrs);
5fe231e8 2285 if (IS_ERR(rdev))
4c476991 2286 return PTR_ERR(rdev);
f444de05
JB		 2287 wdev = NULL;
2288 netdev = NULL;
2289 result = 0;
71fe96bf 2290 } else
f444de05 2291 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2292
2293 /*
2294 * end workaround code, by now the rdev is available
2295 * and locked, and wdev may or may not be NULL.
2296 */
4bbf4d56
JB		 2297
2298 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2299 result = cfg80211_dev_rename(
2300 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2301
4bbf4d56 2302 if (result)
7f2b8562 2303 return result;
31888487
JM		 2304
2305 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2306 struct ieee80211_txq_params txq_params;
2307 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2308
7f2b8562
YX		 2309 if (!rdev->ops->set_txq_params)
2310 return -EOPNOTSUPP;
31888487 2311
7f2b8562
YX		 2312 if (!netdev)
2313 return -EINVAL;
f70f01c2 2314
133a3ff2 2315 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2316 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2317 return -EINVAL;
133a3ff2 2318
7f2b8562
YX		 2319 if (!netif_running(netdev))
2320 return -ENETDOWN;
2b5f8b0b 2321
31888487
JM		 2322 nla_for_each_nested(nl_txq_params,
2323 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2324 rem_txq_params) {
bfe2c7b1
JB		 2325 result = nla_parse_nested(tb, NL80211_TXQ_ATTR_MAX,
2326 nl_txq_params,
2327 txq_params_policy);
ae811e21
JB		 2328 if (result)
2329 return result;
31888487
JM		 2330 result = parse_txq_params(tb, &txq_params);
2331 if (result)
7f2b8562 2332 return result;
31888487 2333
e35e4d28
HG		 2334 result = rdev_set_txq_params(rdev, netdev,
2335 &txq_params);
31888487 2336 if (result)
7f2b8562 2337 return result;
31888487
JM		 2338 }
2339 }
55682965 2340
72bdcf34 2341 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2342 result = __nl80211_set_channel(
2343 rdev,
2344 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2345 info);
72bdcf34 2346 if (result)
7f2b8562 2347 return result;
72bdcf34
JM		 2348 }
2349
98d2ff8b 2350 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2351 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2352 enum nl80211_tx_power_setting type;
2353 int idx, mbm = 0;
2354
c8442118
JB		 2355 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2356 txp_wdev = NULL;
2357
7f2b8562
YX		 2358 if (!rdev->ops->set_tx_power)
2359 return -EOPNOTSUPP;
98d2ff8b
JO		 2360
2361 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2362 type = nla_get_u32(info->attrs[idx]);
2363
2364 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2365 (type != NL80211_TX_POWER_AUTOMATIC))
2366 return -EINVAL;
98d2ff8b
JO		 2367
2368 if (type != NL80211_TX_POWER_AUTOMATIC) {
2369 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2370 mbm = nla_get_u32(info->attrs[idx]);
2371 }
2372
c8442118 2373 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2374 if (result)
7f2b8562 2375 return result;
98d2ff8b
JO		 2376 }
2377
afe0cbf8
BR		 2378 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2379 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2380 u32 tx_ant, rx_ant;
7a087e74 2381
7f531e03
BR		 2382 if ((!rdev->wiphy.available_antennas_tx &&
2383 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2384 !rdev->ops->set_antenna)
2385 return -EOPNOTSUPP;
afe0cbf8
BR		 2386
2387 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2388 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2389
a7ffac95 2390 /* reject antenna configurations which don't match the
7f531e03
BR		 2391 * available antenna masks, except for the "all" mask */
2392 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2393 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2394 return -EINVAL;
a7ffac95 2395
7f531e03
BR		 2396 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2397 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2398
e35e4d28 2399 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2400 if (result)
7f2b8562 2401 return result;
afe0cbf8
BR		 2402 }
2403
b9a5f8ca
JM		 2404 changed = 0;
2405
2406 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2407 retry_short = nla_get_u8(
2408 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2409 if (retry_short == 0)
2410 return -EINVAL;
2411
b9a5f8ca
JM		 2412 changed |= WIPHY_PARAM_RETRY_SHORT;
2413 }
2414
2415 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2416 retry_long = nla_get_u8(
2417 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2418 if (retry_long == 0)
2419 return -EINVAL;
2420
b9a5f8ca
JM		 2421 changed |= WIPHY_PARAM_RETRY_LONG;
2422 }
2423
2424 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2425 frag_threshold = nla_get_u32(
2426 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2427 if (frag_threshold < 256)
2428 return -EINVAL;
2429
b9a5f8ca
JM		 2430 if (frag_threshold != (u32) -1) {
2431 /*
2432 * Fragments (apart from the last one) are required to
2433 * have even length. Make the fragmentation code
2434 * simpler by stripping LSB should someone try to use
2435 * odd threshold value.
2436 */
2437 frag_threshold &= ~0x1;
2438 }
2439 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2440 }
2441
2442 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2443 rts_threshold = nla_get_u32(
2444 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2445 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2446 }
2447
81077e82 2448 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2449 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2450 return -EINVAL;
2451
81077e82
LT		 2452 coverage_class = nla_get_u8(
2453 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2454 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2455 }
2456
3057dbfd
LB		 2457 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2458 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2459 return -EOPNOTSUPP;
2460
2461 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2462 }
2463
b9a5f8ca
JM		 2464 if (changed) {
2465 u8 old_retry_short, old_retry_long;
2466 u32 old_frag_threshold, old_rts_threshold;
81077e82 2467 u8 old_coverage_class;
b9a5f8ca 2468
7f2b8562
YX		 2469 if (!rdev->ops->set_wiphy_params)
2470 return -EOPNOTSUPP;
b9a5f8ca
JM		 2471
2472 old_retry_short = rdev->wiphy.retry_short;
2473 old_retry_long = rdev->wiphy.retry_long;
2474 old_frag_threshold = rdev->wiphy.frag_threshold;
2475 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2476 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2477
2478 if (changed & WIPHY_PARAM_RETRY_SHORT)
2479 rdev->wiphy.retry_short = retry_short;
2480 if (changed & WIPHY_PARAM_RETRY_LONG)
2481 rdev->wiphy.retry_long = retry_long;
2482 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2483 rdev->wiphy.frag_threshold = frag_threshold;
2484 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2485 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2486 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2487 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2488
e35e4d28 2489 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2490 if (result) {
2491 rdev->wiphy.retry_short = old_retry_short;
2492 rdev->wiphy.retry_long = old_retry_long;
2493 rdev->wiphy.frag_threshold = old_frag_threshold;
2494 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2495 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2496 return result;
b9a5f8ca
JM		 2497 }
2498 }
7f2b8562 2499 return 0;
55682965
JB		 2500}
2501
71bbc994
JB		 2502static inline u64 wdev_id(struct wireless_dev *wdev)
2503{
2504 return (u64)wdev->identifier |
f26cbf40 2505 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2506}
55682965 2507
683b6d3b 2508static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2509 const struct cfg80211_chan_def *chandef)
683b6d3b 2510{
601555cd
JB		 2511 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2512 return -EINVAL;
3d9d1d66 2513
683b6d3b
JB		 2514 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2515 chandef->chan->center_freq))
2516 return -ENOBUFS;
3d9d1d66
JB		 2517 switch (chandef->width) {
2518 case NL80211_CHAN_WIDTH_20_NOHT:
2519 case NL80211_CHAN_WIDTH_20:
2520 case NL80211_CHAN_WIDTH_40:
2521 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2522 cfg80211_get_chandef_type(chandef)))
2523 return -ENOBUFS;
2524 break;
2525 default:
2526 break;
2527 }
2528 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2529 return -ENOBUFS;
2530 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2531 return -ENOBUFS;
2532 if (chandef->center_freq2 &&
2533 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2534 return -ENOBUFS;
2535 return 0;
2536}
2537
15e47304 2538static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2539 struct cfg80211_registered_device *rdev,
8f894be2 2540 struct wireless_dev *wdev, bool removal)
55682965 2541{
72fb2abc 2542 struct net_device *dev = wdev->netdev;
8f894be2 2543 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2544 void *hdr;
2545
8f894be2
TB		 2546 if (removal)
2547 cmd = NL80211_CMD_DEL_INTERFACE;
2548
2549 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2550 if (!hdr)
2551 return -1;
2552
72fb2abc
JB		 2553 if (dev &&
2554 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2555 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2556 goto nla_put_failure;
2557
2558 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2559 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2dad624e
ND		 2560 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2561 NL80211_ATTR_PAD) ||
98104fde 2562 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2563 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2564 rdev->devlist_generation ^
2565 (cfg80211_rdev_list_generation << 2)))
2566 goto nla_put_failure;
f5ea9120 2567
5b7ccaf3 2568 if (rdev->ops->get_channel) {
683b6d3b
JB		 2569 int ret;
2570 struct cfg80211_chan_def chandef;
2571
2572 ret = rdev_get_channel(rdev, wdev, &chandef);
2573 if (ret == 0) {
2574 if (nl80211_send_chandef(msg, &chandef))
2575 goto nla_put_failure;
2576 }
d91df0e3
PF		 2577 }
2578
d55d0d59
RM		 2579 if (rdev->ops->get_tx_power) {
2580 int dbm, ret;
2581
2582 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2583 if (ret == 0 &&
2584 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2585 DBM_TO_MBM(dbm)))
2586 goto nla_put_failure;
2587 }
2588
b84e7a05
AQ		 2589 if (wdev->ssid_len) {
2590 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2591 goto nla_put_failure;
2592 }
2593
053c095a
JB		 2594 genlmsg_end(msg, hdr);
2595 return 0;
55682965
JB		 2596
2597 nla_put_failure:
bc3ed28c
TG		 2598 genlmsg_cancel(msg, hdr);
2599 return -EMSGSIZE;
55682965
JB		 2600}
2601
2602static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2603{
2604 int wp_idx = 0;
2605 int if_idx = 0;
2606 int wp_start = cb->args[0];
2607 int if_start = cb->args[1];
b7fb44da 2608 int filter_wiphy = -1;
f5ea9120 2609 struct cfg80211_registered_device *rdev;
55682965
JB		 2610 struct wireless_dev *wdev;
2611
5fe231e8 2612 rtnl_lock();
b7fb44da
DK		 2613 if (!cb->args[2]) {
2614 struct nl80211_dump_wiphy_state state = {
2615 .filter_wiphy = -1,
2616 };
2617 int ret;
2618
2619 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2620 if (ret)
2621 return ret;
2622
2623 filter_wiphy = state.filter_wiphy;
2624
2625 /*
2626 * if filtering, set cb->args[2] to +1 since 0 is the default
2627 * value needed to determine that parsing is necessary.
2628 */
2629 if (filter_wiphy >= 0)
2630 cb->args[2] = filter_wiphy + 1;
2631 else
2632 cb->args[2] = -1;
2633 } else if (cb->args[2] > 0) {
2634 filter_wiphy = cb->args[2] - 1;
2635 }
2636
f5ea9120
JB		 2637 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2638 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2639 continue;
bba95fef
JB		 2640 if (wp_idx < wp_start) {
2641 wp_idx++;
55682965 2642 continue;
bba95fef 2643 }
b7fb44da
DK		 2644
2645 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2646 continue;
2647
55682965
JB		 2648 if_idx = 0;
2649
53873f13 2650 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
bba95fef
JB		 2651 if (if_idx < if_start) {
2652 if_idx++;
55682965 2653 continue;
bba95fef 2654 }
15e47304 2655 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2656 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2657 rdev, wdev, false) < 0) {
bba95fef
JB		 2658 goto out;
2659 }
2660 if_idx++;
55682965 2661 }
bba95fef
JB		 2662
2663 wp_idx++;
55682965 2664 }
bba95fef 2665 out:
5fe231e8 2666 rtnl_unlock();
55682965
JB		 2667
2668 cb->args[0] = wp_idx;
2669 cb->args[1] = if_idx;
2670
2671 return skb->len;
2672}
2673
2674static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2675{
2676 struct sk_buff *msg;
1b8ec87a 2677 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2678 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2679
fd2120ca 2680 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2681 if (!msg)
4c476991 2682 return -ENOMEM;
55682965 2683
15e47304 2684 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2685 rdev, wdev, false) < 0) {
4c476991
JB		 2686 nlmsg_free(msg);
2687 return -ENOBUFS;
2688 }
55682965 2689
134e6375 2690 return genlmsg_reply(msg, info);
55682965
JB		 2691}
2692
66f7ac50
MW		 2693static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2694 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2695 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2696 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2697 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2698 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2699 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2700};
2701
2702static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2703{
2704 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2705 int flag;
2706
2707 *mntrflags = 0;
2708
2709 if (!nla)
2710 return -EINVAL;
2711
2712 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2713 nla, mntr_flags_policy))
2714 return -EINVAL;
2715
2716 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2717 if (flags[flag])
2718 *mntrflags |= (1<<flag);
2719
2720 return 0;
2721}
2722
9bc383de 2723static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2724 struct net_device *netdev, u8 use_4addr,
2725 enum nl80211_iftype iftype)
9bc383de 2726{
ad4bb6f8 2727 if (!use_4addr) {
f350a0a8 2728 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2729 return -EBUSY;
9bc383de 2730 return 0;
ad4bb6f8 2731 }
9bc383de
JB		 2732
2733 switch (iftype) {
2734 case NL80211_IFTYPE_AP_VLAN:
2735 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2736 return 0;
2737 break;
2738 case NL80211_IFTYPE_STATION:
2739 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2740 return 0;
2741 break;
2742 default:
2743 break;
2744 }
2745
2746 return -EOPNOTSUPP;
2747}
2748
55682965
JB		 2749static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2750{
4c476991 2751 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2752 struct vif_params params;
e36d56b6 2753 int err;
04a773ad 2754 enum nl80211_iftype otype, ntype;
4c476991 2755 struct net_device *dev = info->user_ptr[1];
92ffe055 2756 u32 _flags, *flags = NULL;
ac7f9cfa 2757 bool change = false;
55682965 2758
2ec600d6
LCC		 2759 memset(&params, 0, sizeof(params));
2760
04a773ad 2761 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2762
723b038d 2763 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2764 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2765 if (otype != ntype)
ac7f9cfa 2766 change = true;
4c476991
JB		 2767 if (ntype > NL80211_IFTYPE_MAX)
2768 return -EINVAL;
723b038d
JB		 2769 }
2770
92ffe055 2771 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2772 struct wireless_dev *wdev = dev->ieee80211_ptr;
2773
4c476991
JB		 2774 if (ntype != NL80211_IFTYPE_MESH_POINT)
2775 return -EINVAL;
29cbe68c
JB		 2776 if (netif_running(dev))
2777 return -EBUSY;
2778
2779 wdev_lock(wdev);
2780 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2781 IEEE80211_MAX_MESH_ID_LEN);
2782 wdev->mesh_id_up_len =
2783 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2784 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2785 wdev->mesh_id_up_len);
2786 wdev_unlock(wdev);
2ec600d6
LCC		 2787 }
2788
8b787643
FF		 2789 if (info->attrs[NL80211_ATTR_4ADDR]) {
2790 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2791 change = true;
ad4bb6f8 2792 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2793 if (err)
4c476991 2794 return err;
8b787643
FF		 2795 } else {
2796 params.use_4addr = -1;
2797 }
2798
92ffe055 2799 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2800 if (ntype != NL80211_IFTYPE_MONITOR)
2801 return -EINVAL;
92ffe055
JB		 2802 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2803 &_flags);
ac7f9cfa 2804 if (err)
4c476991 2805 return err;
ac7f9cfa
JB		 2806
2807 flags = &_flags;
2808 change = true;
92ffe055 2809 }
3b85875a 2810
c6e6a0c8
AE		 2811 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2812 const u8 *mumimo_groups;
2813 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2814
2815 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2816 return -EOPNOTSUPP;
2817
2818 mumimo_groups =
2819 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2820
2821 /* bits 0 and 63 are reserved and must be zero */
2822 if ((mumimo_groups[0] & BIT(7)) ||
2823 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(0)))
2824 return -EINVAL;
2825
2826 memcpy(params.vht_mumimo_groups, mumimo_groups,
2827 VHT_MUMIMO_GROUPS_DATA_LEN);
2828 change = true;
2829 }
2830
2831 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2832 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2833
2834 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2835 return -EOPNOTSUPP;
2836
2837 nla_memcpy(params.macaddr,
2838 info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR],
2839 ETH_ALEN);
2840 change = true;
2841 }
2842
18003297 2843 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2844 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2845 return -EOPNOTSUPP;
2846
ac7f9cfa 2847 if (change)
3d54d255 2848 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2849 else
2850 err = 0;
60719ffd 2851
9bc383de
JB		 2852 if (!err && params.use_4addr != -1)
2853 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2854
55682965
JB		 2855 return err;
2856}
2857
2858static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2859{
4c476991 2860 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2861 struct vif_params params;
84efbb84 2862 struct wireless_dev *wdev;
896ff063 2863 struct sk_buff *msg;
55682965
JB		 2864 int err;
2865 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2866 u32 flags;
55682965 2867
78f22b6a
JB		 2868 /* to avoid failing a new interface creation due to pending removal */
2869 cfg80211_destroy_ifaces(rdev);
2870
2ec600d6
LCC		 2871 memset(&params, 0, sizeof(params));
2872
55682965
JB		 2873 if (!info->attrs[NL80211_ATTR_IFNAME])
2874 return -EINVAL;
2875
2876 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2877 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2878 if (type > NL80211_IFTYPE_MAX)
2879 return -EINVAL;
2880 }
2881
79c97e97 2882 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2883 !(rdev->wiphy.interface_modes & (1 << type)))
2884 return -EOPNOTSUPP;
55682965 2885
cb3b7d87 2886 if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
e8f479b1
BG		 2887 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2888 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2889 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2890 ETH_ALEN);
2891 if (!is_valid_ether_addr(params.macaddr))
2892 return -EADDRNOTAVAIL;
2893 }
2894
9bc383de 2895 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2896 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2897 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2898 if (err)
4c476991 2899 return err;
9bc383de 2900 }
8b787643 2901
66f7ac50
MW		 2902 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2903 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2904 &flags);
e057d3c3 2905
18003297 2906 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2907 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2908 return -EOPNOTSUPP;
2909
a18c7192
JB		 2910 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2911 if (!msg)
2912 return -ENOMEM;
2913
e35e4d28
HG		 2914 wdev = rdev_add_virtual_intf(rdev,
2915 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2916 NET_NAME_USER, type, err ? NULL : &flags,
2917 &params);
d687cbb7
RM		 2918 if (WARN_ON(!wdev)) {
2919 nlmsg_free(msg);
2920 return -EPROTO;
2921 } else if (IS_ERR(wdev)) {
1c90f9d4 2922 nlmsg_free(msg);
84efbb84 2923 return PTR_ERR(wdev);
1c90f9d4 2924 }
2ec600d6 2925
18e5ca65 2926 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2927 wdev->owner_nlportid = info->snd_portid;
2928
98104fde
JB		 2929 switch (type) {
2930 case NL80211_IFTYPE_MESH_POINT:
2931 if (!info->attrs[NL80211_ATTR_MESH_ID])
2932 break;
29cbe68c
JB		 2933 wdev_lock(wdev);
2934 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2935 IEEE80211_MAX_MESH_ID_LEN);
2936 wdev->mesh_id_up_len =
2937 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2938 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2939 wdev->mesh_id_up_len);
2940 wdev_unlock(wdev);
98104fde 2941 break;
cb3b7d87 2942 case NL80211_IFTYPE_NAN:
98104fde
JB		 2943 case NL80211_IFTYPE_P2P_DEVICE:
2944 /*
cb3b7d87 2945 * P2P Device and NAN do not have a netdev, so don't go
98104fde
JB		 2946 * through the netdev notifier and must be added here
2947 */
2948 mutex_init(&wdev->mtx);
2949 INIT_LIST_HEAD(&wdev->event_list);
2950 spin_lock_init(&wdev->event_lock);
2951 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2952 spin_lock_init(&wdev->mgmt_registrations_lock);
2953
98104fde 2954 wdev->identifier = ++rdev->wdev_id;
53873f13 2955 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
98104fde 2956 rdev->devlist_generation++;
98104fde
JB		 2957 break;
2958 default:
2959 break;
29cbe68c
JB		 2960 }
2961
15e47304 2962 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2963 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2964 nlmsg_free(msg);
2965 return -ENOBUFS;
2966 }
2967
896ff063
DK		 2968 /*
2969 * For wdevs which have no associated netdev object (e.g. of type
2970 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
2971 * For all other types, the event will be generated from the
2972 * netdev notifier
2973 */
2974 if (!wdev->netdev)
2975 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
8f894be2 2976
1c90f9d4 2977 return genlmsg_reply(msg, info);
55682965
JB		 2978}
2979
2980static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2981{
4c476991 2982 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2983 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2984
4c476991
JB		 2985 if (!rdev->ops->del_virtual_intf)
2986 return -EOPNOTSUPP;
55682965 2987
84efbb84
JB		 2988 /*
2989 * If we remove a wireless device without a netdev then clear
2990 * user_ptr[1] so that nl80211_post_doit won't dereference it
2991 * to check if it needs to do dev_put(). Otherwise it crashes
2992 * since the wdev has been freed, unlike with a netdev where
2993 * we need the dev_put() for the netdev to really be freed.
2994 */
2995 if (!wdev->netdev)
2996 info->user_ptr[1] = NULL;
2997
7f8ed01e 2998 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2999}
3000
1d9d9213
SW		 3001static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
3002{
3003 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3004 struct net_device *dev = info->user_ptr[1];
3005 u16 noack_map;
3006
3007 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
3008 return -EINVAL;
3009
3010 if (!rdev->ops->set_noack_map)
3011 return -EOPNOTSUPP;
3012
3013 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
3014
e35e4d28 3015 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 3016}
3017
41ade00f
JB		 3018struct get_key_cookie {
3019 struct sk_buff *msg;
3020 int error;
b9454e83 3021 int idx;
41ade00f
JB		 3022};
3023
3024static void get_key_callback(void *c, struct key_params *params)
3025{
b9454e83 3026 struct nlattr *key;
41ade00f
JB		 3027 struct get_key_cookie *cookie = c;
3028
9360ffd1
DM		 3029 if ((params->key &&
3030 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
3031 params->key_len, params->key)) ||
3032 (params->seq &&
3033 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
3034 params->seq_len, params->seq)) ||
3035 (params->cipher &&
3036 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
3037 params->cipher)))
3038 goto nla_put_failure;
41ade00f 3039
b9454e83
JB		 3040 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
3041 if (!key)
3042 goto nla_put_failure;
3043
9360ffd1
DM		 3044 if ((params->key &&
3045 nla_put(cookie->msg, NL80211_KEY_DATA,
3046 params->key_len, params->key)) ||
3047 (params->seq &&
3048 nla_put(cookie->msg, NL80211_KEY_SEQ,
3049 params->seq_len, params->seq)) ||
3050 (params->cipher &&
3051 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
3052 params->cipher)))
3053 goto nla_put_failure;
b9454e83 3054
9360ffd1
DM		 3055 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
3056 goto nla_put_failure;
b9454e83
JB		 3057
3058 nla_nest_end(cookie->msg, key);
3059
41ade00f
JB		 3060 return;
3061 nla_put_failure:
3062 cookie->error = 1;
3063}
3064
3065static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3066{
4c476991 3067 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3068 int err;
4c476991 3069 struct net_device *dev = info->user_ptr[1];
41ade00f 3070 u8 key_idx = 0;
e31b8213
JB		 3071 const u8 *mac_addr = NULL;
3072 bool pairwise;
41ade00f
JB		 3073 struct get_key_cookie cookie = {
3074 .error = 0,
3075 };
3076 void *hdr;
3077 struct sk_buff *msg;
3078
3079 if (info->attrs[NL80211_ATTR_KEY_IDX])
3080 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3081
3cfcf6ac 3082 if (key_idx > 5)
41ade00f
JB		 3083 return -EINVAL;
3084
3085 if (info->attrs[NL80211_ATTR_MAC])
3086 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3087
e31b8213
JB		 3088 pairwise = !!mac_addr;
3089 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3090 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
7a087e74 3091
e31b8213
JB		 3092 if (kt >= NUM_NL80211_KEYTYPES)
3093 return -EINVAL;
3094 if (kt != NL80211_KEYTYPE_GROUP &&
3095 kt != NL80211_KEYTYPE_PAIRWISE)
3096 return -EINVAL;
3097 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3098 }
3099
4c476991
JB		 3100 if (!rdev->ops->get_key)
3101 return -EOPNOTSUPP;
41ade00f 3102
0fa7b391
JB		 3103 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3104 return -ENOENT;
3105
fd2120ca 3106 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3107 if (!msg)
3108 return -ENOMEM;
41ade00f 3109
15e47304 3110 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 3111 NL80211_CMD_NEW_KEY);
cb35fba3 3112 if (!hdr)
9fe271af 3113 goto nla_put_failure;
41ade00f
JB		 3114
3115 cookie.msg = msg;
b9454e83 3116 cookie.idx = key_idx;
41ade00f 3117
9360ffd1
DM		 3118 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3119 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3120 goto nla_put_failure;
3121 if (mac_addr &&
3122 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3123 goto nla_put_failure;
41ade00f 3124
e35e4d28
HG		 3125 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3126 get_key_callback);
41ade00f
JB		 3127
3128 if (err)
6c95e2a2 3129 goto free_msg;
41ade00f
JB		 3130
3131 if (cookie.error)
3132 goto nla_put_failure;
3133
3134 genlmsg_end(msg, hdr);
4c476991 3135 return genlmsg_reply(msg, info);
41ade00f
JB		 3136
3137 nla_put_failure:
3138 err = -ENOBUFS;
6c95e2a2 3139 free_msg:
41ade00f 3140 nlmsg_free(msg);
41ade00f
JB		 3141 return err;
3142}
3143
3144static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3145{
4c476991 3146 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 3147 struct key_parse key;
41ade00f 3148 int err;
4c476991 3149 struct net_device *dev = info->user_ptr[1];
41ade00f 3150
b9454e83
JB		 3151 err = nl80211_parse_key(info, &key);
3152 if (err)
3153 return err;
41ade00f 3154
b9454e83 3155 if (key.idx < 0)
41ade00f
JB		 3156 return -EINVAL;
3157
b9454e83
JB		 3158 /* only support setting default key */
3159 if (!key.def && !key.defmgmt)
41ade00f
JB		 3160 return -EINVAL;
3161
dbd2fd65 3162 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 3163
dbd2fd65
JB		 3164 if (key.def) {
3165 if (!rdev->ops->set_default_key) {
3166 err = -EOPNOTSUPP;
3167 goto out;
3168 }
41ade00f 3169
dbd2fd65
JB		 3170 err = nl80211_key_allowed(dev->ieee80211_ptr);
3171 if (err)
3172 goto out;
3173
e35e4d28 3174 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 3175 key.def_uni, key.def_multi);
3176
3177 if (err)
3178 goto out;
fffd0934 3179
3d23e349 3180#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 3181 dev->ieee80211_ptr->wext.default_key = key.idx;
3182#endif
3183 } else {
3184 if (key.def_uni || !key.def_multi) {
3185 err = -EINVAL;
3186 goto out;
3187 }
3188
3189 if (!rdev->ops->set_default_mgmt_key) {
3190 err = -EOPNOTSUPP;
3191 goto out;
3192 }
3193
3194 err = nl80211_key_allowed(dev->ieee80211_ptr);
3195 if (err)
3196 goto out;
3197
e35e4d28 3198 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 3199 if (err)
3200 goto out;
3201
3202#ifdef CONFIG_CFG80211_WEXT
3203 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3204#endif
dbd2fd65
JB		 3205 }
3206
3207 out:
fffd0934 3208 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3209
41ade00f
JB		 3210 return err;
3211}
3212
3213static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3214{
4c476991 3215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3216 int err;
4c476991 3217 struct net_device *dev = info->user_ptr[1];
b9454e83 3218 struct key_parse key;
e31b8213 3219 const u8 *mac_addr = NULL;
41ade00f 3220
b9454e83
JB		 3221 err = nl80211_parse_key(info, &key);
3222 if (err)
3223 return err;
41ade00f 3224
b9454e83 3225 if (!key.p.key)
41ade00f
JB		 3226 return -EINVAL;
3227
41ade00f
JB		 3228 if (info->attrs[NL80211_ATTR_MAC])
3229 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3230
e31b8213
JB		 3231 if (key.type == -1) {
3232 if (mac_addr)
3233 key.type = NL80211_KEYTYPE_PAIRWISE;
3234 else
3235 key.type = NL80211_KEYTYPE_GROUP;
3236 }
3237
3238 /* for now */
3239 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3240 key.type != NL80211_KEYTYPE_GROUP)
3241 return -EINVAL;
3242
4c476991
JB		 3243 if (!rdev->ops->add_key)
3244 return -EOPNOTSUPP;
25e47c18 3245
e31b8213
JB		 3246 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3247 key.type == NL80211_KEYTYPE_PAIRWISE,
3248 mac_addr))
4c476991 3249 return -EINVAL;
41ade00f 3250
fffd0934
JB		 3251 wdev_lock(dev->ieee80211_ptr);
3252 err = nl80211_key_allowed(dev->ieee80211_ptr);
3253 if (!err)
e35e4d28
HG		 3254 err = rdev_add_key(rdev, dev, key.idx,
3255 key.type == NL80211_KEYTYPE_PAIRWISE,
3256 mac_addr, &key.p);
fffd0934 3257 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3258
41ade00f
JB		 3259 return err;
3260}
3261
3262static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3263{
4c476991 3264 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3265 int err;
4c476991 3266 struct net_device *dev = info->user_ptr[1];
41ade00f 3267 u8 *mac_addr = NULL;
b9454e83 3268 struct key_parse key;
41ade00f 3269
b9454e83
JB		 3270 err = nl80211_parse_key(info, &key);
3271 if (err)
3272 return err;
41ade00f
JB		 3273
3274 if (info->attrs[NL80211_ATTR_MAC])
3275 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3276
e31b8213
JB		 3277 if (key.type == -1) {
3278 if (mac_addr)
3279 key.type = NL80211_KEYTYPE_PAIRWISE;
3280 else
3281 key.type = NL80211_KEYTYPE_GROUP;
3282 }
3283
3284 /* for now */
3285 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3286 key.type != NL80211_KEYTYPE_GROUP)
3287 return -EINVAL;
3288
4c476991
JB		 3289 if (!rdev->ops->del_key)
3290 return -EOPNOTSUPP;
41ade00f 3291
fffd0934
JB		 3292 wdev_lock(dev->ieee80211_ptr);
3293 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3294
0fa7b391 3295 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3296 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3297 err = -ENOENT;
3298
fffd0934 3299 if (!err)
e35e4d28
HG		 3300 err = rdev_del_key(rdev, dev, key.idx,
3301 key.type == NL80211_KEYTYPE_PAIRWISE,
3302 mac_addr);
41ade00f 3303
3d23e349 3304#ifdef CONFIG_CFG80211_WEXT
08645126 3305 if (!err) {
b9454e83 3306 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3307 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3308 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3309 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3310 }
3311#endif
fffd0934 3312 wdev_unlock(dev->ieee80211_ptr);
08645126 3313
41ade00f
JB		 3314 return err;
3315}
3316
77765eaf
VT		 3317/* This function returns an error or the number of nested attributes */
3318static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3319{
3320 struct nlattr *attr;
3321 int n_entries = 0, tmp;
3322
3323 nla_for_each_nested(attr, nl_attr, tmp) {
3324 if (nla_len(attr) != ETH_ALEN)
3325 return -EINVAL;
3326
3327 n_entries++;
3328 }
3329
3330 return n_entries;
3331}
3332
3333/*
3334 * This function parses ACL information and allocates memory for ACL data.
3335 * On successful return, the calling function is responsible to free the
3336 * ACL buffer returned by this function.
3337 */
3338static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3339 struct genl_info *info)
3340{
3341 enum nl80211_acl_policy acl_policy;
3342 struct nlattr *attr;
3343 struct cfg80211_acl_data *acl;
3344 int i = 0, n_entries, tmp;
3345
3346 if (!wiphy->max_acl_mac_addrs)
3347 return ERR_PTR(-EOPNOTSUPP);
3348
3349 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3350 return ERR_PTR(-EINVAL);
3351
3352 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3353 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3354 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3355 return ERR_PTR(-EINVAL);
3356
3357 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3358 return ERR_PTR(-EINVAL);
3359
3360 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3361 if (n_entries < 0)
3362 return ERR_PTR(n_entries);
3363
3364 if (n_entries > wiphy->max_acl_mac_addrs)
3365 return ERR_PTR(-ENOTSUPP);
3366
3367 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3368 GFP_KERNEL);
3369 if (!acl)
3370 return ERR_PTR(-ENOMEM);
3371
3372 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3373 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3374 i++;
3375 }
3376
3377 acl->n_acl_entries = n_entries;
3378 acl->acl_policy = acl_policy;
3379
3380 return acl;
3381}
3382
3383static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3384{
3385 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3386 struct net_device *dev = info->user_ptr[1];
3387 struct cfg80211_acl_data *acl;
3388 int err;
3389
3390 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3391 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3392 return -EOPNOTSUPP;
3393
3394 if (!dev->ieee80211_ptr->beacon_interval)
3395 return -EINVAL;
3396
3397 acl = parse_acl_data(&rdev->wiphy, info);
3398 if (IS_ERR(acl))
3399 return PTR_ERR(acl);
3400
3401 err = rdev_set_mac_acl(rdev, dev, acl);
3402
3403 kfree(acl);
3404
3405 return err;
3406}
3407
a7c7fbff
PK		 3408static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
3409 u8 *rates, u8 rates_len)
3410{
3411 u8 i;
3412 u32 mask = 0;
3413
3414 for (i = 0; i < rates_len; i++) {
3415 int rate = (rates[i] & 0x7f) * 5;
3416 int ridx;
3417
3418 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
3419 struct ieee80211_rate *srate =
3420 &sband->bitrates[ridx];
3421 if (rate == srate->bitrate) {
3422 mask |= 1 << ridx;
3423 break;
3424 }
3425 }
3426 if (ridx == sband->n_bitrates)
3427 return 0; /* rate not found */
3428 }
3429
3430 return mask;
3431}
3432
3433static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
3434 u8 *rates, u8 rates_len,
3435 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
3436{
3437 u8 i;
3438
3439 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
3440
3441 for (i = 0; i < rates_len; i++) {
3442 int ridx, rbit;
3443
3444 ridx = rates[i] / 8;
3445 rbit = BIT(rates[i] % 8);
3446
3447 /* check validity */
3448 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
3449 return false;
3450
3451 /* check availability */
3452 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
3453 mcs[ridx] |= rbit;
3454 else
3455 return false;
3456 }
3457
3458 return true;
3459}
3460
3461static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
3462{
3463 u16 mcs_mask = 0;
3464
3465 switch (vht_mcs_map) {
3466 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
3467 break;
3468 case IEEE80211_VHT_MCS_SUPPORT_0_7:
3469 mcs_mask = 0x00FF;
3470 break;
3471 case IEEE80211_VHT_MCS_SUPPORT_0_8:
3472 mcs_mask = 0x01FF;
3473 break;
3474 case IEEE80211_VHT_MCS_SUPPORT_0_9:
3475 mcs_mask = 0x03FF;
3476 break;
3477 default:
3478 break;
3479 }
3480
3481 return mcs_mask;
3482}
3483
3484static void vht_build_mcs_mask(u16 vht_mcs_map,
3485 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
3486{
3487 u8 nss;
3488
3489 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
3490 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
3491 vht_mcs_map >>= 2;
3492 }
3493}
3494
3495static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
3496 struct nl80211_txrate_vht *txrate,
3497 u16 mcs[NL80211_VHT_NSS_MAX])
3498{
3499 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3500 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
3501 u8 i;
3502
3503 if (!sband->vht_cap.vht_supported)
3504 return false;
3505
3506 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
3507
3508 /* Build vht_mcs_mask from VHT capabilities */
3509 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
3510
3511 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3512 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
3513 mcs[i] = txrate->mcs[i];
3514 else
3515 return false;
3516 }
3517
3518 return true;
3519}
3520
3521static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
3522 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
3523 .len = NL80211_MAX_SUPP_RATES },
3524 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
3525 .len = NL80211_MAX_SUPP_HT_RATES },
3526 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
3527 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
3528};
3529
3530static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
3531 struct cfg80211_bitrate_mask *mask)
3532{
3533 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
3534 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3535 int rem, i;
3536 struct nlattr *tx_rates;
3537 struct ieee80211_supported_band *sband;
3538 u16 vht_tx_mcs_map;
3539
3540 memset(mask, 0, sizeof(*mask));
3541 /* Default to all rates enabled */
3542 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3543 sband = rdev->wiphy.bands[i];
3544
3545 if (!sband)
3546 continue;
3547
3548 mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
3549 memcpy(mask->control[i].ht_mcs,
3550 sband->ht_cap.mcs.rx_mask,
3551 sizeof(mask->control[i].ht_mcs));
3552
3553 if (!sband->vht_cap.vht_supported)
3554 continue;
3555
3556 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3557 vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
3558 }
3559
3560 /* if no rates are given set it back to the defaults */
3561 if (!info->attrs[NL80211_ATTR_TX_RATES])
3562 goto out;
3563
3564 /* The nested attribute uses enum nl80211_band as the index. This maps
3565 * directly to the enum nl80211_band values used in cfg80211.
3566 */
3567 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
3568 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
3569 enum nl80211_band band = nla_type(tx_rates);
3570 int err;
3571
3572 if (band < 0 || band >= NUM_NL80211_BANDS)
3573 return -EINVAL;
3574 sband = rdev->wiphy.bands[band];
3575 if (sband == NULL)
3576 return -EINVAL;
bfe2c7b1
JB		 3577 err = nla_parse_nested(tb, NL80211_TXRATE_MAX, tx_rates,
3578 nl80211_txattr_policy);
a7c7fbff
PK		 3579 if (err)
3580 return err;
3581 if (tb[NL80211_TXRATE_LEGACY]) {
3582 mask->control[band].legacy = rateset_to_mask(
3583 sband,
3584 nla_data(tb[NL80211_TXRATE_LEGACY]),
3585 nla_len(tb[NL80211_TXRATE_LEGACY]));
3586 if ((mask->control[band].legacy == 0) &&
3587 nla_len(tb[NL80211_TXRATE_LEGACY]))
3588 return -EINVAL;
3589 }
3590 if (tb[NL80211_TXRATE_HT]) {
3591 if (!ht_rateset_to_mask(
3592 sband,
3593 nla_data(tb[NL80211_TXRATE_HT]),
3594 nla_len(tb[NL80211_TXRATE_HT]),
3595 mask->control[band].ht_mcs))
3596 return -EINVAL;
3597 }
3598 if (tb[NL80211_TXRATE_VHT]) {
3599 if (!vht_set_mcs_mask(
3600 sband,
3601 nla_data(tb[NL80211_TXRATE_VHT]),
3602 mask->control[band].vht_mcs))
3603 return -EINVAL;
3604 }
3605 if (tb[NL80211_TXRATE_GI]) {
3606 mask->control[band].gi =
3607 nla_get_u8(tb[NL80211_TXRATE_GI]);
3608 if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
3609 return -EINVAL;
3610 }
3611
3612 if (mask->control[band].legacy == 0) {
3613 /* don't allow empty legacy rates if HT or VHT
3614 * are not even supported.
3615 */
3616 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
3617 rdev->wiphy.bands[band]->vht_cap.vht_supported))
3618 return -EINVAL;
3619
3620 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
3621 if (mask->control[band].ht_mcs[i])
3622 goto out;
3623
3624 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
3625 if (mask->control[band].vht_mcs[i])
3626 goto out;
3627
3628 /* legacy and mcs rates may not be both empty */
3629 return -EINVAL;
3630 }
3631 }
3632
3633out:
3634 return 0;
3635}
3636
8564e382
JB		 3637static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
3638 enum nl80211_band band,
3639 struct cfg80211_bitrate_mask *beacon_rate)
a7c7fbff 3640{
8564e382
JB		 3641 u32 count_ht, count_vht, i;
3642 u32 rate = beacon_rate->control[band].legacy;
a7c7fbff
PK		 3643
3644 /* Allow only one rate */
3645 if (hweight32(rate) > 1)
3646 return -EINVAL;
3647
3648 count_ht = 0;
3649 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
8564e382 3650 if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
a7c7fbff 3651 return -EINVAL;
8564e382 3652 } else if (beacon_rate->control[band].ht_mcs[i]) {
a7c7fbff
PK		 3653 count_ht++;
3654 if (count_ht > 1)
3655 return -EINVAL;
3656 }
3657 if (count_ht && rate)
3658 return -EINVAL;
3659 }
3660
3661 count_vht = 0;
3662 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8564e382 3663 if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
a7c7fbff 3664 return -EINVAL;
8564e382 3665 } else if (beacon_rate->control[band].vht_mcs[i]) {
a7c7fbff
PK		 3666 count_vht++;
3667 if (count_vht > 1)
3668 return -EINVAL;
3669 }
3670 if (count_vht && rate)
3671 return -EINVAL;
3672 }
3673
3674 if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
3675 return -EINVAL;
3676
8564e382
JB		 3677 if (rate &&
3678 !wiphy_ext_feature_isset(&rdev->wiphy,
3679 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
3680 return -EINVAL;
3681 if (count_ht &&
3682 !wiphy_ext_feature_isset(&rdev->wiphy,
3683 NL80211_EXT_FEATURE_BEACON_RATE_HT))
3684 return -EINVAL;
3685 if (count_vht &&
3686 !wiphy_ext_feature_isset(&rdev->wiphy,
3687 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
3688 return -EINVAL;
3689
a7c7fbff
PK		 3690 return 0;
3691}
3692
a1193be8 3693static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3694 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3695{
8860020e 3696 bool haveinfo = false;
ed1b6cc7 3697
a1193be8
SW		 3698 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3699 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3700 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3701 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3702 return -EINVAL;
3703
8860020e 3704 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3705
a1193be8
SW		 3706 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3707 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3708 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3709 if (!bcn->head_len)
3710 return -EINVAL;
3711 haveinfo = true;
ed1b6cc7
JB		 3712 }
3713
a1193be8
SW		 3714 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3715 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3716 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3717 haveinfo = true;
ed1b6cc7
JB		 3718 }
3719
4c476991
JB		 3720 if (!haveinfo)
3721 return -EINVAL;
3b85875a 3722
a1193be8
SW		 3723 if (attrs[NL80211_ATTR_IE]) {
3724 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3725 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3726 }
3727
a1193be8 3728 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3729 bcn->proberesp_ies =
a1193be8 3730 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3731 bcn->proberesp_ies_len =
a1193be8 3732 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3733 }
3734
a1193be8 3735 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3736 bcn->assocresp_ies =
a1193be8 3737 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3738 bcn->assocresp_ies_len =
a1193be8 3739 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3740 }
3741
a1193be8
SW		 3742 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3743 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3744 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3745 }
3746
8860020e
JB		 3747 return 0;
3748}
3749
66cd794e
JB		 3750static void nl80211_check_ap_rate_selectors(struct cfg80211_ap_settings *params,
3751 const u8 *rates)
3752{
3753 int i;
3754
3755 if (!rates)
3756 return;
3757
3758 for (i = 0; i < rates[1]; i++) {
3759 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_HT_PHY)
3760 params->ht_required = true;
3761 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_VHT_PHY)
3762 params->vht_required = true;
3763 }
3764}
3765
3766/*
3767 * Since the nl80211 API didn't include, from the beginning, attributes about
3768 * HT/VHT requirements/capabilities, we parse them out of the IEs for the
3769 * benefit of drivers that rebuild IEs in the firmware.
3770 */
3771static void nl80211_calculate_ap_params(struct cfg80211_ap_settings *params)
3772{
3773 const struct cfg80211_beacon_data *bcn = &params->beacon;
3774 size_t ies_len = bcn->beacon_ies_len;
3775 const u8 *ies = bcn->beacon_ies;
3776 const u8 *rates;
3777 const u8 *cap;
3778
3779 rates = cfg80211_find_ie(WLAN_EID_SUPP_RATES, ies, ies_len);
3780 nl80211_check_ap_rate_selectors(params, rates);
3781
3782 rates = cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES, ies, ies_len);
3783 nl80211_check_ap_rate_selectors(params, rates);
3784
3785 cap = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, ies_len);
3786 if (cap && cap[1] >= sizeof(*params->ht_cap))
3787 params->ht_cap = (void *)(cap + 2);
3788 cap = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, ies, ies_len);
3789 if (cap && cap[1] >= sizeof(*params->vht_cap))
3790 params->vht_cap = (void *)(cap + 2);
3791}
3792
46c1dd0c
FF		 3793static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3794 struct cfg80211_ap_settings *params)
3795{
3796 struct wireless_dev *wdev;
3797 bool ret = false;
3798
53873f13 3799 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
46c1dd0c
FF		 3800 if (wdev->iftype != NL80211_IFTYPE_AP &&
3801 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3802 continue;
3803
683b6d3b 3804 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3805 continue;
3806
683b6d3b 3807 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3808 ret = true;
3809 break;
3810 }
3811
46c1dd0c
FF		 3812 return ret;
3813}
3814
e39e5b5e
JM		 3815static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3816 enum nl80211_auth_type auth_type,
3817 enum nl80211_commands cmd)
3818{
3819 if (auth_type > NL80211_AUTHTYPE_MAX)
3820 return false;
3821
3822 switch (cmd) {
3823 case NL80211_CMD_AUTHENTICATE:
3824 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3825 auth_type == NL80211_AUTHTYPE_SAE)
3826 return false;
63181060
JM		 3827 if (!wiphy_ext_feature_isset(&rdev->wiphy,
3828 NL80211_EXT_FEATURE_FILS_STA) &&
3829 (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3830 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3831 auth_type == NL80211_AUTHTYPE_FILS_PK))
3832 return false;
e39e5b5e
JM		 3833 return true;
3834 case NL80211_CMD_CONNECT:
3835 case NL80211_CMD_START_AP:
3836 /* SAE not supported yet */
3837 if (auth_type == NL80211_AUTHTYPE_SAE)
3838 return false;
63181060
JM		 3839 /* FILS not supported yet */
3840 if (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3841 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3842 auth_type == NL80211_AUTHTYPE_FILS_PK)
3843 return false;
e39e5b5e
JM		 3844 return true;
3845 default:
3846 return false;
3847 }
3848}
3849
8860020e
JB		 3850static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3851{
3852 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3853 struct net_device *dev = info->user_ptr[1];
3854 struct wireless_dev *wdev = dev->ieee80211_ptr;
3855 struct cfg80211_ap_settings params;
3856 int err;
3857
3858 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3859 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3860 return -EOPNOTSUPP;
3861
3862 if (!rdev->ops->start_ap)
3863 return -EOPNOTSUPP;
3864
3865 if (wdev->beacon_interval)
3866 return -EALREADY;
3867
3868 memset(&params, 0, sizeof(params));
3869
3870 /* these are required for START_AP */
3871 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3872 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3873 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3874 return -EINVAL;
3875
a1193be8 3876 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3877 if (err)
3878 return err;
3879
3880 params.beacon_interval =
3881 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3882 params.dtim_period =
3883 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3884
0c317a02
PK		 3885 err = cfg80211_validate_beacon_int(rdev, dev->ieee80211_ptr->iftype,
3886 params.beacon_interval);
8860020e
JB		 3887 if (err)
3888 return err;
3889
3890 /*
3891 * In theory, some of these attributes should be required here
3892 * but since they were not used when the command was originally
3893 * added, keep them optional for old user space programs to let
3894 * them continue to work with drivers that do not need the
3895 * additional information -- drivers must check!
3896 */
3897 if (info->attrs[NL80211_ATTR_SSID]) {
3898 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3899 params.ssid_len =
3900 nla_len(info->attrs[NL80211_ATTR_SSID]);
3901 if (params.ssid_len == 0 ||
3902 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3903 return -EINVAL;
3904 }
3905
3906 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3907 params.hidden_ssid = nla_get_u32(
3908 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3909 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3910 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3911 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3912 return -EINVAL;
3913 }
3914
3915 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3916
3917 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3918 params.auth_type = nla_get_u32(
3919 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3920 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3921 NL80211_CMD_START_AP))
8860020e
JB		 3922 return -EINVAL;
3923 } else
3924 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3925
3926 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3927 NL80211_MAX_NR_CIPHER_SUITES);
3928 if (err)
3929 return err;
3930
1b658f11
VT		 3931 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3932 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3933 return -EOPNOTSUPP;
3934 params.inactivity_timeout = nla_get_u16(
3935 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3936 }
3937
53cabad7
JB		 3938 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3939 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3940 return -EINVAL;
3941 params.p2p_ctwindow =
3942 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3943 if (params.p2p_ctwindow > 127)
3944 return -EINVAL;
3945 if (params.p2p_ctwindow != 0 &&
3946 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3947 return -EINVAL;
3948 }
3949
3950 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3951 u8 tmp;
3952
3953 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3954 return -EINVAL;
3955 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3956 if (tmp > 1)
3957 return -EINVAL;
3958 params.p2p_opp_ps = tmp;
3959 if (params.p2p_opp_ps != 0 &&
3960 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3961 return -EINVAL;
3962 }
3963
aa430da4 3964 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3965 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3966 if (err)
3967 return err;
3968 } else if (wdev->preset_chandef.chan) {
3969 params.chandef = wdev->preset_chandef;
46c1dd0c 3970 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3971 return -EINVAL;
3972
923b352f
AN		 3973 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3974 wdev->iftype))
aa430da4
JB		 3975 return -EINVAL;
3976
a7c7fbff
PK		 3977 if (info->attrs[NL80211_ATTR_TX_RATES]) {
3978 err = nl80211_parse_tx_bitrate_mask(info, &params.beacon_rate);
3979 if (err)
3980 return err;
3981
8564e382
JB		 3982 err = validate_beacon_tx_rate(rdev, params.chandef.chan->band,
3983 &params.beacon_rate);
a7c7fbff
PK		 3984 if (err)
3985 return err;
3986 }
3987
18998c38
EP		 3988 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3989 params.smps_mode =
3990 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3991 switch (params.smps_mode) {
3992 case NL80211_SMPS_OFF:
3993 break;
3994 case NL80211_SMPS_STATIC:
3995 if (!(rdev->wiphy.features &
3996 NL80211_FEATURE_STATIC_SMPS))
3997 return -EINVAL;
3998 break;
3999 case NL80211_SMPS_DYNAMIC:
4000 if (!(rdev->wiphy.features &
4001 NL80211_FEATURE_DYNAMIC_SMPS))
4002 return -EINVAL;
4003 break;
4004 default:
4005 return -EINVAL;
4006 }
4007 } else {
4008 params.smps_mode = NL80211_SMPS_OFF;
4009 }
4010
6e8ef842
PK		 4011 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
4012 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
4013 return -EOPNOTSUPP;
4014
4baf6bea
OO		 4015 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
4016 params.acl = parse_acl_data(&rdev->wiphy, info);
4017 if (IS_ERR(params.acl))
4018 return PTR_ERR(params.acl);
4019 }
4020
66cd794e
JB		 4021 nl80211_calculate_ap_params(&params);
4022
c56589ed 4023 wdev_lock(wdev);
e35e4d28 4024 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 4025 if (!err) {
683b6d3b 4026 wdev->preset_chandef = params.chandef;
8860020e 4027 wdev->beacon_interval = params.beacon_interval;
9e0e2961 4028 wdev->chandef = params.chandef;
06e191e2
AQ		 4029 wdev->ssid_len = params.ssid_len;
4030 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 4031 }
c56589ed 4032 wdev_unlock(wdev);
77765eaf
VT		 4033
4034 kfree(params.acl);
4035
56d1893d 4036 return err;
ed1b6cc7
JB		 4037}
4038
8860020e
JB		 4039static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
4040{
4041 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4042 struct net_device *dev = info->user_ptr[1];
4043 struct wireless_dev *wdev = dev->ieee80211_ptr;
4044 struct cfg80211_beacon_data params;
4045 int err;
4046
4047 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4048 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4049 return -EOPNOTSUPP;
4050
4051 if (!rdev->ops->change_beacon)
4052 return -EOPNOTSUPP;
4053
4054 if (!wdev->beacon_interval)
4055 return -EINVAL;
4056
a1193be8 4057 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 4058 if (err)
4059 return err;
4060
c56589ed
SW		 4061 wdev_lock(wdev);
4062 err = rdev_change_beacon(rdev, dev, &params);
4063 wdev_unlock(wdev);
4064
4065 return err;
8860020e
JB		 4066}
4067
4068static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 4069{
4c476991
JB		 4070 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4071 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 4072
7c8d5e03 4073 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 4074}
4075
5727ef1b
JB		 4076static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
4077 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
4078 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
4079 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 4080 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 4081 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 4082 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 4083};
4084
eccb8e8f 4085static int parse_station_flags(struct genl_info *info,
bdd3ae3d 4086 enum nl80211_iftype iftype,
eccb8e8f 4087 struct station_parameters *params)
5727ef1b
JB		 4088{
4089 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 4090 struct nlattr *nla;
5727ef1b
JB		 4091 int flag;
4092
eccb8e8f
JB		 4093 /*
4094 * Try parsing the new attribute first so userspace
4095 * can specify both for older kernels.
4096 */
4097 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
4098 if (nla) {
4099 struct nl80211_sta_flag_update *sta_flags;
4100
4101 sta_flags = nla_data(nla);
4102 params->sta_flags_mask = sta_flags->mask;
4103 params->sta_flags_set = sta_flags->set;
77ee7c89 4104 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 4105 if ((params->sta_flags_mask |
4106 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
4107 return -EINVAL;
4108 return 0;
4109 }
4110
4111 /* if present, parse the old attribute */
5727ef1b 4112
eccb8e8f 4113 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 4114 if (!nla)
4115 return 0;
4116
4117 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
4118 nla, sta_flags_policy))
4119 return -EINVAL;
4120
bdd3ae3d
JB		 4121 /*
4122 * Only allow certain flags for interface types so that
4123 * other attributes are silently ignored. Remember that
4124 * this is backward compatibility code with old userspace
4125 * and shouldn't be hit in other cases anyway.
4126 */
4127 switch (iftype) {
4128 case NL80211_IFTYPE_AP:
4129 case NL80211_IFTYPE_AP_VLAN:
4130 case NL80211_IFTYPE_P2P_GO:
4131 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4132 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4133 BIT(NL80211_STA_FLAG_WME) |
4134 BIT(NL80211_STA_FLAG_MFP);
4135 break;
4136 case NL80211_IFTYPE_P2P_CLIENT:
4137 case NL80211_IFTYPE_STATION:
4138 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4139 BIT(NL80211_STA_FLAG_TDLS_PEER);
4140 break;
4141 case NL80211_IFTYPE_MESH_POINT:
4142 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4143 BIT(NL80211_STA_FLAG_MFP) |
4144 BIT(NL80211_STA_FLAG_AUTHORIZED);
4145 default:
4146 return -EINVAL;
4147 }
5727ef1b 4148
3383b5a6
JB		 4149 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
4150 if (flags[flag]) {
eccb8e8f 4151 params->sta_flags_set |= (1<<flag);
5727ef1b 4152
3383b5a6
JB		 4153 /* no longer support new API additions in old API */
4154 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
4155 return -EINVAL;
4156 }
4157 }
4158
5727ef1b
JB		 4159 return 0;
4160}
4161
c8dcfd8a
FF		 4162static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
4163 int attr)
4164{
4165 struct nlattr *rate;
8eb41c8d
VK		 4166 u32 bitrate;
4167 u16 bitrate_compat;
b51f3bee 4168 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 4169
4170 rate = nla_nest_start(msg, attr);
4171 if (!rate)
db9c64cf 4172 return false;
c8dcfd8a
FF		 4173
4174 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
4175 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 4176 /* report 16-bit bitrate only if we can */
4177 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 4178 if (bitrate > 0 &&
4179 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
4180 return false;
4181 if (bitrate_compat > 0 &&
4182 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
4183 return false;
4184
b51f3bee
JB		 4185 switch (info->bw) {
4186 case RATE_INFO_BW_5:
4187 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
4188 break;
4189 case RATE_INFO_BW_10:
4190 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
4191 break;
4192 default:
4193 WARN_ON(1);
4194 /* fall through */
4195 case RATE_INFO_BW_20:
4196 rate_flg = 0;
4197 break;
4198 case RATE_INFO_BW_40:
4199 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
4200 break;
4201 case RATE_INFO_BW_80:
4202 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
4203 break;
4204 case RATE_INFO_BW_160:
4205 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
4206 break;
4207 }
4208
4209 if (rate_flg && nla_put_flag(msg, rate_flg))
4210 return false;
4211
db9c64cf
JB		 4212 if (info->flags & RATE_INFO_FLAGS_MCS) {
4213 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
4214 return false;
db9c64cf
JB		 4215 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4216 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4217 return false;
4218 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
4219 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
4220 return false;
4221 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
4222 return false;
db9c64cf
JB		 4223 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4224 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4225 return false;
4226 }
c8dcfd8a
FF		 4227
4228 nla_nest_end(msg, rate);
4229 return true;
c8dcfd8a
FF		 4230}
4231
119363c7
FF		 4232static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
4233 int id)
4234{
4235 void *attr;
4236 int i = 0;
4237
4238 if (!mask)
4239 return true;
4240
4241 attr = nla_nest_start(msg, id);
4242 if (!attr)
4243 return false;
4244
4245 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
4246 if (!(mask & BIT(i)))
4247 continue;
4248
4249 if (nla_put_u8(msg, i, signal[i]))
4250 return false;
4251 }
4252
4253 nla_nest_end(msg, attr);
4254
4255 return true;
4256}
4257
cf5ead82
JB		 4258static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
4259 u32 seq, int flags,
66266b3a
JL		 4260 struct cfg80211_registered_device *rdev,
4261 struct net_device *dev,
98b62183 4262 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 4263{
4264 void *hdr;
f4263c98 4265 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 4266
cf5ead82 4267 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 4268 if (!hdr)
4269 return -1;
4270
9360ffd1
DM		 4271 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4272 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
4273 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
4274 goto nla_put_failure;
f5ea9120 4275
2ec600d6
LCC		 4276 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
4277 if (!sinfoattr)
fd5b74dc 4278 goto nla_put_failure;
319090bf
JB		 4279
4280#define PUT_SINFO(attr, memb, type) do { \
d686b920 4281 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
739960f1 4282 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
319090bf
JB		 4283 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
4284 sinfo->memb)) \
4285 goto nla_put_failure; \
4286 } while (0)
d686b920
JB		 4287#define PUT_SINFO_U64(attr, memb) do { \
4288 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4289 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
4290 sinfo->memb, NL80211_STA_INFO_PAD)) \
4291 goto nla_put_failure; \
4292 } while (0)
319090bf
JB		 4293
4294 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
4295 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
4296
4297 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
4298 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 4299 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 4300 (u32)sinfo->rx_bytes))
9360ffd1 4301 goto nla_put_failure;
319090bf
JB		 4302
4303 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
4304 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 4305 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 4306 (u32)sinfo->tx_bytes))
4307 goto nla_put_failure;
319090bf 4308
d686b920
JB		 4309 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
4310 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
319090bf
JB		 4311 PUT_SINFO(LLID, llid, u16);
4312 PUT_SINFO(PLID, plid, u16);
4313 PUT_SINFO(PLINK_STATE, plink_state, u8);
d686b920 4314 PUT_SINFO_U64(RX_DURATION, rx_duration);
319090bf 4315
66266b3a
JL		 4316 switch (rdev->wiphy.signal_type) {
4317 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 4318 PUT_SINFO(SIGNAL, signal, u8);
4319 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 4320 break;
4321 default:
4322 break;
4323 }
319090bf 4324 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 4325 if (!nl80211_put_signal(msg, sinfo->chains,
4326 sinfo->chain_signal,
4327 NL80211_STA_INFO_CHAIN_SIGNAL))
4328 goto nla_put_failure;
4329 }
319090bf 4330 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 4331 if (!nl80211_put_signal(msg, sinfo->chains,
4332 sinfo->chain_signal_avg,
4333 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
4334 goto nla_put_failure;
4335 }
319090bf 4336 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 4337 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
4338 NL80211_STA_INFO_TX_BITRATE))
4339 goto nla_put_failure;
4340 }
319090bf 4341 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 4342 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
4343 NL80211_STA_INFO_RX_BITRATE))
420e7fab 4344 goto nla_put_failure;
420e7fab 4345 }
319090bf
JB		 4346
4347 PUT_SINFO(RX_PACKETS, rx_packets, u32);
4348 PUT_SINFO(TX_PACKETS, tx_packets, u32);
4349 PUT_SINFO(TX_RETRIES, tx_retries, u32);
4350 PUT_SINFO(TX_FAILED, tx_failed, u32);
4351 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
4352 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
4353 PUT_SINFO(LOCAL_PM, local_pm, u32);
4354 PUT_SINFO(PEER_PM, peer_pm, u32);
4355 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
4356
4357 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 4358 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
4359 if (!bss_param)
4360 goto nla_put_failure;
4361
9360ffd1
DM		 4362 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
4363 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
4364 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
4365 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
4366 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
4367 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
4368 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
4369 sinfo->bss_param.dtim_period) ||
4370 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
4371 sinfo->bss_param.beacon_interval))
4372 goto nla_put_failure;
f4263c98
PS		 4373
4374 nla_nest_end(msg, bss_param);
4375 }
319090bf 4376 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 4377 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
4378 sizeof(struct nl80211_sta_flag_update),
4379 &sinfo->sta_flags))
4380 goto nla_put_failure;
319090bf 4381
d686b920
JB		 4382 PUT_SINFO_U64(T_OFFSET, t_offset);
4383 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
4384 PUT_SINFO_U64(BEACON_RX, rx_beacon);
a76b1942 4385 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 4386
4387#undef PUT_SINFO
d686b920 4388#undef PUT_SINFO_U64
6de39808
JB		 4389
4390 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
4391 struct nlattr *tidsattr;
4392 int tid;
4393
4394 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
4395 if (!tidsattr)
4396 goto nla_put_failure;
4397
4398 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
4399 struct cfg80211_tid_stats *tidstats;
4400 struct nlattr *tidattr;
4401
4402 tidstats = &sinfo->pertid[tid];
4403
4404 if (!tidstats->filled)
4405 continue;
4406
4407 tidattr = nla_nest_start(msg, tid + 1);
4408 if (!tidattr)
4409 goto nla_put_failure;
4410
d686b920 4411#define PUT_TIDVAL_U64(attr, memb) do { \
6de39808 4412 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
d686b920
JB		 4413 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
4414 tidstats->memb, NL80211_TID_STATS_PAD)) \
6de39808
JB		 4415 goto nla_put_failure; \
4416 } while (0)
4417
d686b920
JB		 4418 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4419 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4420 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4421 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
6de39808 4422
d686b920 4423#undef PUT_TIDVAL_U64
6de39808
JB		 4424 nla_nest_end(msg, tidattr);
4425 }
4426
4427 nla_nest_end(msg, tidsattr);
4428 }
4429
2ec600d6 4430 nla_nest_end(msg, sinfoattr);
fd5b74dc 4431
319090bf 4432 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 4433 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4434 sinfo->assoc_req_ies))
4435 goto nla_put_failure;
50d3dfb7 4436
053c095a
JB		 4437 genlmsg_end(msg, hdr);
4438 return 0;
fd5b74dc
JB		 4439
4440 nla_put_failure:
bc3ed28c
TG		 4441 genlmsg_cancel(msg, hdr);
4442 return -EMSGSIZE;
fd5b74dc
JB		 4443}
4444
2ec600d6 4445static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 4446 struct netlink_callback *cb)
2ec600d6 4447{
2ec600d6 4448 struct station_info sinfo;
1b8ec87a 4449 struct cfg80211_registered_device *rdev;
97990a06 4450 struct wireless_dev *wdev;
2ec600d6 4451 u8 mac_addr[ETH_ALEN];
97990a06 4452 int sta_idx = cb->args[2];
2ec600d6 4453 int err;
2ec600d6 4454
1b8ec87a 4455 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4456 if (err)
4457 return err;
bba95fef 4458
97990a06
JB		 4459 if (!wdev->netdev) {
4460 err = -EINVAL;
4461 goto out_err;
4462 }
4463
1b8ec87a 4464 if (!rdev->ops->dump_station) {
eec60b03 4465 err = -EOPNOTSUPP;
bba95fef
JB		 4466 goto out_err;
4467 }
4468
bba95fef 4469 while (1) {
f612cedf 4470 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 4471 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 4472 mac_addr, &sinfo);
bba95fef
JB		 4473 if (err == -ENOENT)
4474 break;
4475 if (err)
3b85875a 4476 goto out_err;
bba95fef 4477
cf5ead82 4478 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 4479 NETLINK_CB(cb->skb).portid,
bba95fef 4480 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 4481 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 4482 &sinfo) < 0)
4483 goto out;
4484
4485 sta_idx++;
4486 }
4487
bba95fef 4488 out:
97990a06 4489 cb->args[2] = sta_idx;
bba95fef 4490 err = skb->len;
bba95fef 4491 out_err:
1b8ec87a 4492 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 4493
4494 return err;
2ec600d6 4495}
fd5b74dc 4496
5727ef1b
JB		 4497static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4498{
4c476991
JB		 4499 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4500 struct net_device *dev = info->user_ptr[1];
2ec600d6 4501 struct station_info sinfo;
fd5b74dc
JB		 4502 struct sk_buff *msg;
4503 u8 *mac_addr = NULL;
4c476991 4504 int err;
fd5b74dc 4505
2ec600d6 4506 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 4507
4508 if (!info->attrs[NL80211_ATTR_MAC])
4509 return -EINVAL;
4510
4511 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4512
4c476991
JB		 4513 if (!rdev->ops->get_station)
4514 return -EOPNOTSUPP;
3b85875a 4515
e35e4d28 4516 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 4517 if (err)
4c476991 4518 return err;
2ec600d6 4519
fd2120ca 4520 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 4521 if (!msg)
4c476991 4522 return -ENOMEM;
fd5b74dc 4523
cf5ead82
JB		 4524 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4525 info->snd_portid, info->snd_seq, 0,
66266b3a 4526 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 4527 nlmsg_free(msg);
4528 return -ENOBUFS;
4529 }
3b85875a 4530
4c476991 4531 return genlmsg_reply(msg, info);
5727ef1b
JB		 4532}
4533
77ee7c89
JB		 4534int cfg80211_check_station_change(struct wiphy *wiphy,
4535 struct station_parameters *params,
4536 enum cfg80211_station_type statype)
4537{
e4208427
AB		 4538 if (params->listen_interval != -1 &&
4539 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4540 return -EINVAL;
e4208427 4541
17b94247
AB		 4542 if (params->support_p2p_ps != -1 &&
4543 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4544 return -EINVAL;
4545
c72e1140 4546 if (params->aid &&
e4208427
AB		 4547 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4548 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4549 return -EINVAL;
4550
4551 /* When you run into this, adjust the code below for the new flag */
4552 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4553
4554 switch (statype) {
eef941e6
TP		 4555 case CFG80211_STA_MESH_PEER_KERNEL:
4556 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4557 /*
4558 * No ignoring the TDLS flag here -- the userspace mesh
4559 * code doesn't have the bug of including TDLS in the
4560 * mask everywhere.
4561 */
4562 if (params->sta_flags_mask &
4563 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4564 BIT(NL80211_STA_FLAG_MFP) |
4565 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4566 return -EINVAL;
4567 break;
4568 case CFG80211_STA_TDLS_PEER_SETUP:
4569 case CFG80211_STA_TDLS_PEER_ACTIVE:
4570 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4571 return -EINVAL;
4572 /* ignore since it can't change */
4573 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4574 break;
4575 default:
4576 /* disallow mesh-specific things */
4577 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4578 return -EINVAL;
4579 if (params->local_pm)
4580 return -EINVAL;
4581 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4582 return -EINVAL;
4583 }
4584
4585 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4586 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4587 /* TDLS can't be set, ... */
4588 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4589 return -EINVAL;
4590 /*
4591 * ... but don't bother the driver with it. This works around
4592 * a hostapd/wpa_supplicant issue -- it always includes the
4593 * TLDS_PEER flag in the mask even for AP mode.
4594 */
4595 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4596 }
4597
47edb11b
AB		 4598 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4599 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4600 /* reject other things that can't change */
4601 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4602 return -EINVAL;
4603 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4604 return -EINVAL;
4605 if (params->supported_rates)
4606 return -EINVAL;
4607 if (params->ext_capab || params->ht_capa || params->vht_capa)
4608 return -EINVAL;
4609 }
4610
47edb11b
AB		 4611 if (statype != CFG80211_STA_AP_CLIENT &&
4612 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4613 if (params->vlan)
4614 return -EINVAL;
4615 }
4616
4617 switch (statype) {
4618 case CFG80211_STA_AP_MLME_CLIENT:
4619 /* Use this only for authorizing/unauthorizing a station */
4620 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4621 return -EOPNOTSUPP;
4622 break;
4623 case CFG80211_STA_AP_CLIENT:
47edb11b 4624 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4625 /* accept only the listed bits */
4626 if (params->sta_flags_mask &
4627 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4628 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4629 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4630 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4631 BIT(NL80211_STA_FLAG_WME) |
4632 BIT(NL80211_STA_FLAG_MFP)))
4633 return -EINVAL;
4634
4635 /* but authenticated/associated only if driver handles it */
4636 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4637 params->sta_flags_mask &
4638 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4639 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4640 return -EINVAL;
4641 break;
4642 case CFG80211_STA_IBSS:
4643 case CFG80211_STA_AP_STA:
4644 /* reject any changes other than AUTHORIZED */
4645 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4646 return -EINVAL;
4647 break;
4648 case CFG80211_STA_TDLS_PEER_SETUP:
4649 /* reject any changes other than AUTHORIZED or WME */
4650 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4651 BIT(NL80211_STA_FLAG_WME)))
4652 return -EINVAL;
4653 /* force (at least) rates when authorizing */
4654 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4655 !params->supported_rates)
4656 return -EINVAL;
4657 break;
4658 case CFG80211_STA_TDLS_PEER_ACTIVE:
4659 /* reject any changes */
4660 return -EINVAL;
eef941e6 4661 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4662 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4663 return -EINVAL;
4664 break;
eef941e6 4665 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4666 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4667 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4668 return -EINVAL;
4669 break;
4670 }
4671
06f7c88c
BL		 4672 /*
4673 * Older kernel versions ignored this attribute entirely, so don't
4674 * reject attempts to update it but mark it as unused instead so the
4675 * driver won't look at the data.
4676 */
4677 if (statype != CFG80211_STA_AP_CLIENT_UNASSOC &&
4678 statype != CFG80211_STA_TDLS_PEER_SETUP)
4679 params->opmode_notif_used = false;
4680
77ee7c89
JB		 4681 return 0;
4682}
4683EXPORT_SYMBOL(cfg80211_check_station_change);
4684
5727ef1b 4685/*
c258d2de 4686 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4687 */
80b99899
JB		 4688static struct net_device *get_vlan(struct genl_info *info,
4689 struct cfg80211_registered_device *rdev)
5727ef1b 4690{
463d0183 4691 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4692 struct net_device *v;
4693 int ret;
4694
4695 if (!vlanattr)
4696 return NULL;
4697
4698 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4699 if (!v)
4700 return ERR_PTR(-ENODEV);
4701
4702 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4703 ret = -EINVAL;
4704 goto error;
5727ef1b 4705 }
80b99899 4706
77ee7c89
JB		 4707 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4708 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4709 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4710 ret = -EINVAL;
4711 goto error;
4712 }
4713
80b99899
JB		 4714 if (!netif_running(v)) {
4715 ret = -ENETDOWN;
4716 goto error;
4717 }
4718
4719 return v;
4720 error:
4721 dev_put(v);
4722 return ERR_PTR(ret);
5727ef1b
JB		 4723}
4724
94e860f1
JB		 4725static const struct nla_policy
4726nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4727 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4728 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4729};
4730
ff276691
JB		 4731static int nl80211_parse_sta_wme(struct genl_info *info,
4732 struct station_parameters *params)
df881293 4733{
df881293
JM		 4734 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4735 struct nlattr *nla;
4736 int err;
4737
df881293
JM		 4738 /* parse WME attributes if present */
4739 if (!info->attrs[NL80211_ATTR_STA_WME])
4740 return 0;
4741
4742 nla = info->attrs[NL80211_ATTR_STA_WME];
4743 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4744 nl80211_sta_wme_policy);
4745 if (err)
4746 return err;
4747
4748 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4749 params->uapsd_queues = nla_get_u8(
4750 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4751 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4752 return -EINVAL;
4753
4754 if (tb[NL80211_STA_WME_MAX_SP])
4755 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4756
4757 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4758 return -EINVAL;
4759
4760 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4761
4762 return 0;
4763}
4764
c01fc9ad
SD		 4765static int nl80211_parse_sta_channel_info(struct genl_info *info,
4766 struct station_parameters *params)
4767{
4768 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4769 params->supported_channels =
4770 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4771 params->supported_channels_len =
4772 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4773 /*
4774 * Need to include at least one (first channel, number of
4775 * channels) tuple for each subband, and must have proper
4776 * tuples for the rest of the data as well.
4777 */
4778 if (params->supported_channels_len < 2)
4779 return -EINVAL;
4780 if (params->supported_channels_len % 2)
4781 return -EINVAL;
4782 }
4783
4784 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4785 params->supported_oper_classes =
4786 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4787 params->supported_oper_classes_len =
4788 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4789 /*
4790 * The value of the Length field of the Supported Operating
4791 * Classes element is between 2 and 253.
4792 */
4793 if (params->supported_oper_classes_len < 2 ||
4794 params->supported_oper_classes_len > 253)
4795 return -EINVAL;
4796 }
4797 return 0;
4798}
4799
ff276691
JB		 4800static int nl80211_set_station_tdls(struct genl_info *info,
4801 struct station_parameters *params)
4802{
c01fc9ad 4803 int err;
ff276691 4804 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4805 if (info->attrs[NL80211_ATTR_PEER_AID])
4806 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4807 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4808 params->ht_capa =
4809 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4810 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4811 params->vht_capa =
4812 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4813
c01fc9ad
SD		 4814 err = nl80211_parse_sta_channel_info(info, params);
4815 if (err)
4816 return err;
4817
ff276691
JB		 4818 return nl80211_parse_sta_wme(info, params);
4819}
4820
5727ef1b
JB		 4821static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4822{
4c476991 4823 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4824 struct net_device *dev = info->user_ptr[1];
5727ef1b 4825 struct station_parameters params;
77ee7c89
JB		 4826 u8 *mac_addr;
4827 int err;
5727ef1b
JB		 4828
4829 memset(&params, 0, sizeof(params));
4830
77ee7c89
JB		 4831 if (!rdev->ops->change_station)
4832 return -EOPNOTSUPP;
4833
e4208427
AB		 4834 /*
4835 * AID and listen_interval properties can be set only for unassociated
4836 * station. Include these parameters here and will check them in
4837 * cfg80211_check_station_change().
4838 */
a9bc31e4
AB		 4839 if (info->attrs[NL80211_ATTR_STA_AID])
4840 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4841
4842 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4843 params.listen_interval =
4844 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4845 else
4846 params.listen_interval = -1;
5727ef1b 4847
17b94247
AB		 4848 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4849 u8 tmp;
4850
4851 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4852 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4853 return -EINVAL;
4854
4855 params.support_p2p_ps = tmp;
4856 } else {
4857 params.support_p2p_ps = -1;
4858 }
4859
5727ef1b
JB		 4860 if (!info->attrs[NL80211_ATTR_MAC])
4861 return -EINVAL;
4862
4863 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4864
4865 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4866 params.supported_rates =
4867 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4868 params.supported_rates_len =
4869 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4870 }
4871
9d62a986
JM		 4872 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4873 params.capability =
4874 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4875 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4876 }
4877
4878 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4879 params.ext_capab =
4880 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4881 params.ext_capab_len =
4882 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4883 }
4884
bdd3ae3d 4885 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4886 return -EINVAL;
4887
f8bacc21 4888 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4889 params.plink_action =
f8bacc21
JB		 4890 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4891 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4892 return -EINVAL;
4893 }
2ec600d6 4894
f8bacc21 4895 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4896 params.plink_state =
f8bacc21
JB		 4897 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4898 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4899 return -EINVAL;
7d27a0ba
MH		 4900 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4901 params.peer_aid = nla_get_u16(
4902 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4903 if (params.peer_aid > IEEE80211_MAX_AID)
4904 return -EINVAL;
4905 }
f8bacc21
JB		 4906 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4907 }
9c3990aa 4908
3b1c5a53
MP		 4909 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4910 enum nl80211_mesh_power_mode pm = nla_get_u32(
4911 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4912
4913 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4914 pm > NL80211_MESH_POWER_MAX)
4915 return -EINVAL;
4916
4917 params.local_pm = pm;
4918 }
4919
06f7c88c
BL		 4920 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4921 params.opmode_notif_used = true;
4922 params.opmode_notif =
4923 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4924 }
4925
77ee7c89
JB		 4926 /* Include parameters for TDLS peer (will check later) */
4927 err = nl80211_set_station_tdls(info, &params);
4928 if (err)
4929 return err;
4930
4931 params.vlan = get_vlan(info, rdev);
4932 if (IS_ERR(params.vlan))
4933 return PTR_ERR(params.vlan);
4934
a97f4424
JB		 4935 switch (dev->ieee80211_ptr->iftype) {
4936 case NL80211_IFTYPE_AP:
4937 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4938 case NL80211_IFTYPE_P2P_GO:
074ac8df 4939 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4940 case NL80211_IFTYPE_STATION:
267335d6 4941 case NL80211_IFTYPE_ADHOC:
a97f4424 4942 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4943 break;
4944 default:
77ee7c89
JB		 4945 err = -EOPNOTSUPP;
4946 goto out_put_vlan;
034d655e
JB		 4947 }
4948
77ee7c89 4949 /* driver will call cfg80211_check_station_change() */
e35e4d28 4950 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4951
77ee7c89 4952 out_put_vlan:
5727ef1b
JB		 4953 if (params.vlan)
4954 dev_put(params.vlan);
3b85875a 4955
5727ef1b
JB		 4956 return err;
4957}
4958
4959static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4960{
4c476991 4961 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4962 int err;
4c476991 4963 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4964 struct station_parameters params;
4965 u8 *mac_addr = NULL;
bda95eb1
JB		 4966 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4967 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 4968
4969 memset(&params, 0, sizeof(params));
4970
984c311b
JB		 4971 if (!rdev->ops->add_station)
4972 return -EOPNOTSUPP;
4973
5727ef1b
JB		 4974 if (!info->attrs[NL80211_ATTR_MAC])
4975 return -EINVAL;
4976
5727ef1b
JB		 4977 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4978 return -EINVAL;
4979
4980 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4981 return -EINVAL;
4982
5e4b6f56
JM		 4983 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4984 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4985 return -EINVAL;
4986
5727ef1b
JB		 4987 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4988 params.supported_rates =
4989 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4990 params.supported_rates_len =
4991 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4992 params.listen_interval =
4993 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4994
17b94247
AB		 4995 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4996 u8 tmp;
4997
4998 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4999 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
5000 return -EINVAL;
5001
5002 params.support_p2p_ps = tmp;
5003 } else {
5004 /*
5005 * if not specified, assume it's supported for P2P GO interface,
5006 * and is NOT supported for AP interface
5007 */
5008 params.support_p2p_ps =
5009 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
5010 }
5011
3d124ea2 5012 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 5013 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 5014 else
5015 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 5016 if (!params.aid || params.aid > IEEE80211_MAX_AID)
5017 return -EINVAL;
51b50fbe 5018
9d62a986
JM		 5019 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
5020 params.capability =
5021 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
5022 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
5023 }
5024
5025 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
5026 params.ext_capab =
5027 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5028 params.ext_capab_len =
5029 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5030 }
5031
36aedc90
JM		 5032 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
5033 params.ht_capa =
5034 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 5035
f461be3e
MP		 5036 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
5037 params.vht_capa =
5038 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
5039
60f4a7b1
MK		 5040 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5041 params.opmode_notif_used = true;
5042 params.opmode_notif =
5043 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5044 }
5045
f8bacc21 5046 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 5047 params.plink_action =
f8bacc21
JB		 5048 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
5049 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
5050 return -EINVAL;
5051 }
96b78dff 5052
c01fc9ad
SD		 5053 err = nl80211_parse_sta_channel_info(info, &params);
5054 if (err)
5055 return err;
5056
ff276691
JB		 5057 err = nl80211_parse_sta_wme(info, &params);
5058 if (err)
5059 return err;
bdd90d5e 5060
bdd3ae3d 5061 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 5062 return -EINVAL;
5063
496fcc29
JB		 5064 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
5065 * as userspace might just pass through the capabilities from the IEs
5066 * directly, rather than enforcing this restriction and returning an
5067 * error in this case.
5068 */
5069 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
5070 params.ht_capa = NULL;
5071 params.vht_capa = NULL;
5072 }
5073
77ee7c89
JB		 5074 /* When you run into this, adjust the code below for the new flag */
5075 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
5076
bdd90d5e
JB		 5077 switch (dev->ieee80211_ptr->iftype) {
5078 case NL80211_IFTYPE_AP:
5079 case NL80211_IFTYPE_AP_VLAN:
5080 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 5081 /* ignore WME attributes if iface/sta is not capable */
5082 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
5083 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
5084 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 5085
bdd90d5e 5086 /* TDLS peers cannot be added */
3d124ea2
JM		 5087 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5088 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 5089 return -EINVAL;
bdd90d5e
JB		 5090 /* but don't bother the driver with it */
5091 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 5092
d582cffb
JB		 5093 /* allow authenticated/associated only if driver handles it */
5094 if (!(rdev->wiphy.features &
5095 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 5096 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 5097 return -EINVAL;
5098
bda95eb1
JB		 5099 /* Older userspace, or userspace wanting to be compatible with
5100 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
5101 * and assoc flags in the mask, but assumes the station will be
5102 * added as associated anyway since this was the required driver
5103 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
5104 * introduced.
5105 * In order to not bother drivers with this quirk in the API
5106 * set the flags in both the mask and set for new stations in
5107 * this case.
5108 */
5109 if (!(params.sta_flags_mask & auth_assoc)) {
5110 params.sta_flags_mask |= auth_assoc;
5111 params.sta_flags_set |= auth_assoc;
5112 }
5113
bdd90d5e
JB		 5114 /* must be last in here for error handling */
5115 params.vlan = get_vlan(info, rdev);
5116 if (IS_ERR(params.vlan))
5117 return PTR_ERR(params.vlan);
5118 break;
5119 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 5120 /* ignore uAPSD data */
5121 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5122
d582cffb
JB		 5123 /* associated is disallowed */
5124 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
5125 return -EINVAL;
bdd90d5e 5126 /* TDLS peers cannot be added */
3d124ea2
JM		 5127 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5128 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 5129 return -EINVAL;
5130 break;
5131 case NL80211_IFTYPE_STATION:
93d08f0b 5132 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 5133 /* ignore uAPSD data */
5134 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5135
77ee7c89
JB		 5136 /* these are disallowed */
5137 if (params.sta_flags_mask &
5138 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
5139 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 5140 return -EINVAL;
bdd90d5e
JB		 5141 /* Only TDLS peers can be added */
5142 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
5143 return -EINVAL;
5144 /* Can only add if TDLS ... */
5145 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
5146 return -EOPNOTSUPP;
5147 /* ... with external setup is supported */
5148 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
5149 return -EOPNOTSUPP;
77ee7c89
JB		 5150 /*
5151 * Older wpa_supplicant versions always mark the TDLS peer
5152 * as authorized, but it shouldn't yet be.
5153 */
5154 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 5155 break;
5156 default:
5157 return -EOPNOTSUPP;
c75786c9
EP		 5158 }
5159
bdd90d5e 5160 /* be aware of params.vlan when changing code here */
5727ef1b 5161
e35e4d28 5162 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 5163
5727ef1b
JB		 5164 if (params.vlan)
5165 dev_put(params.vlan);
5727ef1b
JB		 5166 return err;
5167}
5168
5169static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
5170{
4c476991
JB		 5171 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5172 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 5173 struct station_del_parameters params;
5174
5175 memset(&params, 0, sizeof(params));
5727ef1b
JB		 5176
5177 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 5178 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 5179
e80cf853 5180 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 5181 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 5182 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5183 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5184 return -EINVAL;
5727ef1b 5185
4c476991
JB		 5186 if (!rdev->ops->del_station)
5187 return -EOPNOTSUPP;
3b85875a 5188
98856866
JM		 5189 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
5190 params.subtype =
5191 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
5192 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
5193 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
5194 return -EINVAL;
5195 } else {
5196 /* Default to Deauthentication frame */
5197 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
5198 }
5199
5200 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
5201 params.reason_code =
5202 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5203 if (params.reason_code == 0)
5204 return -EINVAL; /* 0 is reserved */
5205 } else {
5206 /* Default to reason code 2 */
5207 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
5208 }
5209
89c771e5 5210 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 5211}
5212
15e47304 5213static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 5214 int flags, struct net_device *dev,
5215 u8 *dst, u8 *next_hop,
5216 struct mpath_info *pinfo)
5217{
5218 void *hdr;
5219 struct nlattr *pinfoattr;
5220
1ef4c850 5221 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 5222 if (!hdr)
5223 return -1;
5224
9360ffd1
DM		 5225 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5226 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
5227 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
5228 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
5229 goto nla_put_failure;
f5ea9120 5230
2ec600d6
LCC		 5231 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
5232 if (!pinfoattr)
5233 goto nla_put_failure;
9360ffd1
DM		 5234 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
5235 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
5236 pinfo->frame_qlen))
5237 goto nla_put_failure;
5238 if (((pinfo->filled & MPATH_INFO_SN) &&
5239 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
5240 ((pinfo->filled & MPATH_INFO_METRIC) &&
5241 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
5242 pinfo->metric)) ||
5243 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
5244 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
5245 pinfo->exptime)) ||
5246 ((pinfo->filled & MPATH_INFO_FLAGS) &&
5247 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
5248 pinfo->flags)) ||
5249 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
5250 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
5251 pinfo->discovery_timeout)) ||
5252 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
5253 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
5254 pinfo->discovery_retries)))
5255 goto nla_put_failure;
2ec600d6
LCC		 5256
5257 nla_nest_end(msg, pinfoattr);
5258
053c095a
JB		 5259 genlmsg_end(msg, hdr);
5260 return 0;
2ec600d6
LCC		 5261
5262 nla_put_failure:
bc3ed28c
TG		 5263 genlmsg_cancel(msg, hdr);
5264 return -EMSGSIZE;
2ec600d6
LCC		 5265}
5266
5267static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 5268 struct netlink_callback *cb)
2ec600d6 5269{
2ec600d6 5270 struct mpath_info pinfo;
1b8ec87a 5271 struct cfg80211_registered_device *rdev;
97990a06 5272 struct wireless_dev *wdev;
2ec600d6
LCC		 5273 u8 dst[ETH_ALEN];
5274 u8 next_hop[ETH_ALEN];
97990a06 5275 int path_idx = cb->args[2];
2ec600d6 5276 int err;
2ec600d6 5277
1b8ec87a 5278 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5279 if (err)
5280 return err;
bba95fef 5281
1b8ec87a 5282 if (!rdev->ops->dump_mpath) {
eec60b03 5283 err = -EOPNOTSUPP;
bba95fef
JB		 5284 goto out_err;
5285 }
5286
97990a06 5287 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 5288 err = -EOPNOTSUPP;
0448b5fc 5289 goto out_err;
eec60b03
JM		 5290 }
5291
bba95fef 5292 while (1) {
1b8ec87a 5293 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 5294 next_hop, &pinfo);
bba95fef 5295 if (err == -ENOENT)
2ec600d6 5296 break;
bba95fef 5297 if (err)
3b85875a 5298 goto out_err;
2ec600d6 5299
15e47304 5300 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 5301 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5302 wdev->netdev, dst, next_hop,
bba95fef
JB		 5303 &pinfo) < 0)
5304 goto out;
2ec600d6 5305
bba95fef 5306 path_idx++;
2ec600d6 5307 }
2ec600d6 5308
bba95fef 5309 out:
97990a06 5310 cb->args[2] = path_idx;
bba95fef 5311 err = skb->len;
bba95fef 5312 out_err:
1b8ec87a 5313 nl80211_finish_wdev_dump(rdev);
bba95fef 5314 return err;
2ec600d6
LCC		 5315}
5316
5317static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
5318{
4c476991 5319 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 5320 int err;
4c476991 5321 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5322 struct mpath_info pinfo;
5323 struct sk_buff *msg;
5324 u8 *dst = NULL;
5325 u8 next_hop[ETH_ALEN];
5326
5327 memset(&pinfo, 0, sizeof(pinfo));
5328
5329 if (!info->attrs[NL80211_ATTR_MAC])
5330 return -EINVAL;
5331
5332 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5333
4c476991
JB		 5334 if (!rdev->ops->get_mpath)
5335 return -EOPNOTSUPP;
2ec600d6 5336
4c476991
JB		 5337 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5338 return -EOPNOTSUPP;
eec60b03 5339
e35e4d28 5340 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 5341 if (err)
4c476991 5342 return err;
2ec600d6 5343
fd2120ca 5344 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 5345 if (!msg)
4c476991 5346 return -ENOMEM;
2ec600d6 5347
15e47304 5348 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 5349 dev, dst, next_hop, &pinfo) < 0) {
5350 nlmsg_free(msg);
5351 return -ENOBUFS;
5352 }
3b85875a 5353
4c476991 5354 return genlmsg_reply(msg, info);
2ec600d6
LCC		 5355}
5356
5357static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
5358{
4c476991
JB		 5359 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5360 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5361 u8 *dst = NULL;
5362 u8 *next_hop = NULL;
5363
5364 if (!info->attrs[NL80211_ATTR_MAC])
5365 return -EINVAL;
5366
5367 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5368 return -EINVAL;
5369
5370 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5371 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5372
4c476991
JB		 5373 if (!rdev->ops->change_mpath)
5374 return -EOPNOTSUPP;
35a8efe1 5375
4c476991
JB		 5376 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5377 return -EOPNOTSUPP;
2ec600d6 5378
e35e4d28 5379 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 5380}
4c476991 5381
2ec600d6
LCC		 5382static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
5383{
4c476991
JB		 5384 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5385 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5386 u8 *dst = NULL;
5387 u8 *next_hop = NULL;
5388
5389 if (!info->attrs[NL80211_ATTR_MAC])
5390 return -EINVAL;
5391
5392 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5393 return -EINVAL;
5394
5395 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5396 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5397
4c476991
JB		 5398 if (!rdev->ops->add_mpath)
5399 return -EOPNOTSUPP;
35a8efe1 5400
4c476991
JB		 5401 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5402 return -EOPNOTSUPP;
2ec600d6 5403
e35e4d28 5404 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 5405}
5406
5407static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
5408{
4c476991
JB		 5409 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5410 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5411 u8 *dst = NULL;
5412
5413 if (info->attrs[NL80211_ATTR_MAC])
5414 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5415
4c476991
JB		 5416 if (!rdev->ops->del_mpath)
5417 return -EOPNOTSUPP;
3b85875a 5418
e35e4d28 5419 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 5420}
5421
66be7d2b
HR		 5422static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
5423{
5424 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5425 int err;
5426 struct net_device *dev = info->user_ptr[1];
5427 struct mpath_info pinfo;
5428 struct sk_buff *msg;
5429 u8 *dst = NULL;
5430 u8 mpp[ETH_ALEN];
5431
5432 memset(&pinfo, 0, sizeof(pinfo));
5433
5434 if (!info->attrs[NL80211_ATTR_MAC])
5435 return -EINVAL;
5436
5437 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5438
5439 if (!rdev->ops->get_mpp)
5440 return -EOPNOTSUPP;
5441
5442 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5443 return -EOPNOTSUPP;
5444
5445 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5446 if (err)
5447 return err;
5448
5449 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5450 if (!msg)
5451 return -ENOMEM;
5452
5453 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5454 dev, dst, mpp, &pinfo) < 0) {
5455 nlmsg_free(msg);
5456 return -ENOBUFS;
5457 }
5458
5459 return genlmsg_reply(msg, info);
5460}
5461
5462static int nl80211_dump_mpp(struct sk_buff *skb,
5463 struct netlink_callback *cb)
5464{
5465 struct mpath_info pinfo;
5466 struct cfg80211_registered_device *rdev;
5467 struct wireless_dev *wdev;
5468 u8 dst[ETH_ALEN];
5469 u8 mpp[ETH_ALEN];
5470 int path_idx = cb->args[2];
5471 int err;
5472
5473 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5474 if (err)
5475 return err;
5476
5477 if (!rdev->ops->dump_mpp) {
5478 err = -EOPNOTSUPP;
5479 goto out_err;
5480 }
5481
5482 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5483 err = -EOPNOTSUPP;
5484 goto out_err;
5485 }
5486
5487 while (1) {
5488 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5489 mpp, &pinfo);
5490 if (err == -ENOENT)
5491 break;
5492 if (err)
5493 goto out_err;
5494
5495 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5496 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5497 wdev->netdev, dst, mpp,
5498 &pinfo) < 0)
5499 goto out;
5500
5501 path_idx++;
5502 }
5503
5504 out:
5505 cb->args[2] = path_idx;
5506 err = skb->len;
5507 out_err:
5508 nl80211_finish_wdev_dump(rdev);
5509 return err;
5510}
5511
9f1ba906
JM		 5512static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5513{
4c476991
JB		 5514 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5515 struct net_device *dev = info->user_ptr[1];
c56589ed 5516 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 5517 struct bss_parameters params;
c56589ed 5518 int err;
9f1ba906
JM		 5519
5520 memset(&params, 0, sizeof(params));
5521 /* default to not changing parameters */
5522 params.use_cts_prot = -1;
5523 params.use_short_preamble = -1;
5524 params.use_short_slot_time = -1;
fd8aaaf3 5525 params.ap_isolate = -1;
50b12f59 5526 params.ht_opmode = -1;
53cabad7
JB		 5527 params.p2p_ctwindow = -1;
5528 params.p2p_opp_ps = -1;
9f1ba906
JM		 5529
5530 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5531 params.use_cts_prot =
5532 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5533 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5534 params.use_short_preamble =
5535 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5536 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5537 params.use_short_slot_time =
5538 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 5539 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5540 params.basic_rates =
5541 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5542 params.basic_rates_len =
5543 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5544 }
fd8aaaf3
FF		 5545 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5546 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 5547 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5548 params.ht_opmode =
5549 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 5550
53cabad7
JB		 5551 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5552 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5553 return -EINVAL;
5554 params.p2p_ctwindow =
5555 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5556 if (params.p2p_ctwindow < 0)
5557 return -EINVAL;
5558 if (params.p2p_ctwindow != 0 &&
5559 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5560 return -EINVAL;
5561 }
5562
5563 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5564 u8 tmp;
5565
5566 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5567 return -EINVAL;
5568 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5569 if (tmp > 1)
5570 return -EINVAL;
5571 params.p2p_opp_ps = tmp;
5572 if (params.p2p_opp_ps &&
5573 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5574 return -EINVAL;
5575 }
5576
4c476991
JB		 5577 if (!rdev->ops->change_bss)
5578 return -EOPNOTSUPP;
9f1ba906 5579
074ac8df 5580 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5581 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5582 return -EOPNOTSUPP;
3b85875a 5583
c56589ed
SW		 5584 wdev_lock(wdev);
5585 err = rdev_change_bss(rdev, dev, &params);
5586 wdev_unlock(wdev);
5587
5588 return err;
9f1ba906
JM		 5589}
5590
b2e1b302
LR		 5591static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5592{
b2e1b302 5593 char *data = NULL;
05050753 5594 bool is_indoor;
57b5ce07 5595 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5596 u32 owner_nlportid;
5597
80778f18
LR		 5598 /*
5599 * You should only get this when cfg80211 hasn't yet initialized
5600 * completely when built-in to the kernel right between the time
5601 * window between nl80211_init() and regulatory_init(), if that is
5602 * even possible.
5603 */
458f4f9e 5604 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5605 return -EINPROGRESS;
80778f18 5606
57b5ce07
LR		 5607 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5608 user_reg_hint_type =
5609 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5610 else
5611 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5612
5613 switch (user_reg_hint_type) {
5614 case NL80211_USER_REG_HINT_USER:
5615 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5616 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5617 return -EINVAL;
5618
5619 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5620 return regulatory_hint_user(data, user_reg_hint_type);
5621 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5622 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5623 owner_nlportid = info->snd_portid;
5624 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5625 } else {
5626 owner_nlportid = 0;
5627 is_indoor = true;
5628 }
5629
5630 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5631 default:
5632 return -EINVAL;
5633 }
b2e1b302
LR		 5634}
5635
24bdd9f4 5636static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5637 struct genl_info *info)
93da9cc1 5638{
4c476991 5639 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5640 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5641 struct wireless_dev *wdev = dev->ieee80211_ptr;
5642 struct mesh_config cur_params;
5643 int err = 0;
93da9cc1 5644 void *hdr;
5645 struct nlattr *pinfoattr;
5646 struct sk_buff *msg;
5647
29cbe68c
JB		 5648 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5649 return -EOPNOTSUPP;
5650
24bdd9f4 5651 if (!rdev->ops->get_mesh_config)
4c476991 5652 return -EOPNOTSUPP;
f3f92586 5653
29cbe68c
JB		 5654 wdev_lock(wdev);
5655 /* If not connected, get default parameters */
5656 if (!wdev->mesh_id_len)
5657 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5658 else
e35e4d28 5659 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5660 wdev_unlock(wdev);
5661
93da9cc1 5662 if (err)
4c476991 5663 return err;
93da9cc1 5664
5665 /* Draw up a netlink message to send back */
fd2120ca 5666 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5667 if (!msg)
5668 return -ENOMEM;
15e47304 5669 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5670 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5671 if (!hdr)
efe1cf0c 5672 goto out;
24bdd9f4 5673 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5674 if (!pinfoattr)
5675 goto nla_put_failure;
9360ffd1
DM		 5676 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5677 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5678 cur_params.dot11MeshRetryTimeout) ||
5679 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5680 cur_params.dot11MeshConfirmTimeout) ||
5681 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5682 cur_params.dot11MeshHoldingTimeout) ||
5683 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5684 cur_params.dot11MeshMaxPeerLinks) ||
5685 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5686 cur_params.dot11MeshMaxRetries) ||
5687 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5688 cur_params.dot11MeshTTL) ||
5689 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5690 cur_params.element_ttl) ||
5691 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5692 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5693 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5694 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5695 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5696 cur_params.dot11MeshHWMPmaxPREQretries) ||
5697 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5698 cur_params.path_refresh_time) ||
5699 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5700 cur_params.min_discovery_timeout) ||
5701 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5702 cur_params.dot11MeshHWMPactivePathTimeout) ||
5703 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5704 cur_params.dot11MeshHWMPpreqMinInterval) ||
5705 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5706 cur_params.dot11MeshHWMPperrMinInterval) ||
5707 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5708 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5709 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5710 cur_params.dot11MeshHWMPRootMode) ||
5711 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5712 cur_params.dot11MeshHWMPRannInterval) ||
5713 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5714 cur_params.dot11MeshGateAnnouncementProtocol) ||
5715 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5716 cur_params.dot11MeshForwarding) ||
335d5349 5717 nla_put_s32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5718 cur_params.rssi_threshold) ||
5719 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5720 cur_params.ht_opmode) ||
5721 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5722 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5723 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5724 cur_params.dot11MeshHWMProotInterval) ||
5725 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5726 cur_params.dot11MeshHWMPconfirmationInterval) ||
5727 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5728 cur_params.power_mode) ||
5729 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5730 cur_params.dot11MeshAwakeWindowDuration) ||
5731 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5732 cur_params.plink_timeout))
9360ffd1 5733 goto nla_put_failure;
93da9cc1 5734 nla_nest_end(msg, pinfoattr);
5735 genlmsg_end(msg, hdr);
4c476991 5736 return genlmsg_reply(msg, info);
93da9cc1 5737
3b85875a 5738 nla_put_failure:
93da9cc1 5739 genlmsg_cancel(msg, hdr);
efe1cf0c 5740 out:
d080e275 5741 nlmsg_free(msg);
4c476991 5742 return -ENOBUFS;
93da9cc1 5743}
5744
b54452b0 5745static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5746 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5747 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5748 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5749 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5750 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5751 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5752 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5753 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5754 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5755 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5756 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5757 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5758 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5759 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5760 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5761 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5762 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5763 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5764 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5765 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5766 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5767 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5768 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5769 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5770 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5771 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5772 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5773 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5774};
5775
c80d545d
JC		 5776static const struct nla_policy
5777 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5778 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5779 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5780 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5781 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5782 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5783 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5784 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5785 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5786 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5787};
5788
f151d9db
AB		 5789static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5790{
5791 u8 val = nla_get_u8(nla);
5792 if (val < min || val > max)
5793 return -EINVAL;
5794 *out = val;
5795 return 0;
5796}
5797
5798static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5799{
5800 u8 val = nla_get_u8(nla);
5801 if (val < min || val > max)
5802 return -EINVAL;
5803 *out = val;
5804 return 0;
5805}
5806
5807static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5808{
5809 u16 val = nla_get_u16(nla);
5810 if (val < min || val > max)
5811 return -EINVAL;
5812 *out = val;
5813 return 0;
5814}
5815
5816static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5817{
5818 u32 val = nla_get_u32(nla);
5819 if (val < min || val > max)
5820 return -EINVAL;
5821 *out = val;
5822 return 0;
5823}
5824
5825static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5826{
5827 s32 val = nla_get_s32(nla);
5828 if (val < min || val > max)
5829 return -EINVAL;
5830 *out = val;
5831 return 0;
5832}
5833
ff9a71af
JB		 5834static int nl80211_check_power_mode(const struct nlattr *nla,
5835 enum nl80211_mesh_power_mode min,
5836 enum nl80211_mesh_power_mode max,
5837 enum nl80211_mesh_power_mode *out)
5838{
5839 u32 val = nla_get_u32(nla);
5840 if (val < min || val > max)
5841 return -EINVAL;
5842 *out = val;
5843 return 0;
5844}
5845
24bdd9f4 5846static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5847 struct mesh_config *cfg,
5848 u32 *mask_out)
93da9cc1 5849{
93da9cc1 5850 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5851 u32 mask = 0;
9757235f 5852 u16 ht_opmode;
93da9cc1 5853
ea54fba2
MP		 5854#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5855do { \
5856 if (tb[attr]) { \
f151d9db 5857 if (fn(tb[attr], min, max, &cfg->param)) \
ea54fba2 5858 return -EINVAL; \
ea54fba2
MP		 5859 mask |= (1 << (attr - 1)); \
5860 } \
5861} while (0)
bd90fdcc 5862
24bdd9f4 5863 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5864 return -EINVAL;
5865 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5866 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5867 nl80211_meshconf_params_policy))
93da9cc1 5868 return -EINVAL;
5869
93da9cc1 5870 /* This makes sure that there aren't more than 32 mesh config
5871 * parameters (otherwise our bitfield scheme would not work.) */
5872 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5873
5874 /* Fill in the params struct */
ea54fba2 5875 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea 5876 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
f151d9db 5877 nl80211_check_u16);
ea54fba2 5878 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea 5879 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
f151d9db 5880 nl80211_check_u16);
ea54fba2 5881 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea 5882 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
f151d9db 5883 nl80211_check_u16);
ea54fba2 5884 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea 5885 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
f151d9db 5886 nl80211_check_u16);
ea54fba2 5887 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea 5888 mask, NL80211_MESHCONF_MAX_RETRIES,
f151d9db 5889 nl80211_check_u8);
ea54fba2 5890 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
f151d9db 5891 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
ea54fba2 5892 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea 5893 mask, NL80211_MESHCONF_ELEMENT_TTL,
f151d9db 5894 nl80211_check_u8);
ea54fba2 5895 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea 5896 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
f151d9db 5897 nl80211_check_bool);
ea54fba2
MP		 5898 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5899 1, 255, mask,
a4f606ea 5900 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
f151d9db 5901 nl80211_check_u32);
ea54fba2 5902 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea 5903 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
f151d9db 5904 nl80211_check_u8);
ea54fba2 5905 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea 5906 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
f151d9db 5907 nl80211_check_u32);
ea54fba2 5908 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea 5909 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
f151d9db 5910 nl80211_check_u16);
ea54fba2
MP		 5911 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5912 1, 65535, mask,
a4f606ea 5913 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
f151d9db 5914 nl80211_check_u32);
93da9cc1 5915 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5916 1, 65535, mask,
5917 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
f151d9db 5918 nl80211_check_u16);
dca7e943 5919 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5920 1, 65535, mask,
5921 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
f151d9db 5922 nl80211_check_u16);
93da9cc1 5923 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5924 dot11MeshHWMPnetDiameterTraversalTime,
5925 1, 65535, mask,
a4f606ea 5926 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
f151d9db 5927 nl80211_check_u16);
ea54fba2
MP		 5928 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5929 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
f151d9db 5930 nl80211_check_u8);
ea54fba2
MP		 5931 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5932 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
f151d9db 5933 nl80211_check_u16);
63c5723b 5934 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5935 dot11MeshGateAnnouncementProtocol, 0, 1,
5936 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
f151d9db 5937 nl80211_check_bool);
ea54fba2 5938 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea 5939 mask, NL80211_MESHCONF_FORWARDING,
f151d9db 5940 nl80211_check_bool);
83374fe9 5941 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5942 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
f151d9db 5943 nl80211_check_s32);
9757235f
MH		 5944 /*
5945 * Check HT operation mode based on
5946 * IEEE 802.11 2012 8.4.2.59 HT Operation element.
5947 */
5948 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
5949 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
5950
5951 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
5952 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
5953 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5954 return -EINVAL;
5955
5956 if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
5957 (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5958 return -EINVAL;
5959
5960 switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
5961 case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
5962 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
5963 if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
5964 return -EINVAL;
5965 break;
5966 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
5967 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
5968 if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5969 return -EINVAL;
5970 break;
5971 }
5972 cfg->ht_opmode = ht_opmode;
fd551bac 5973 mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
9757235f 5974 }
ac1073a6 5975 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5976 1, 65535, mask,
ac1073a6 5977 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
f151d9db 5978 nl80211_check_u32);
ea54fba2 5979 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5980 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
f151d9db 5981 nl80211_check_u16);
728b19e5 5982 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5983 dot11MeshHWMPconfirmationInterval,
5984 1, 65535, mask,
728b19e5 5985 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
f151d9db 5986 nl80211_check_u16);
3b1c5a53
MP		 5987 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5988 NL80211_MESH_POWER_ACTIVE,
5989 NL80211_MESH_POWER_MAX,
5990 mask, NL80211_MESHCONF_POWER_MODE,
ff9a71af 5991 nl80211_check_power_mode);
3b1c5a53
MP		 5992 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5993 0, 65535, mask,
f151d9db 5994 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
31f909a2 5995 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538 5996 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
f151d9db 5997 nl80211_check_u32);
bd90fdcc
JB		 5998 if (mask_out)
5999 *mask_out = mask;
c80d545d 6000
bd90fdcc
JB		 6001 return 0;
6002
6003#undef FILL_IN_MESH_PARAM_IF_SET
6004}
6005
c80d545d
JC		 6006static int nl80211_parse_mesh_setup(struct genl_info *info,
6007 struct mesh_setup *setup)
6008{
bb2798d4 6009 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 6010 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
6011
6012 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
6013 return -EINVAL;
6014 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
6015 info->attrs[NL80211_ATTR_MESH_SETUP],
6016 nl80211_mesh_setup_params_policy))
6017 return -EINVAL;
6018
d299a1f2
JC		 6019 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
6020 setup->sync_method =
6021 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
6022 IEEE80211_SYNC_METHOD_VENDOR :
6023 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
6024
c80d545d
JC		 6025 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
6026 setup->path_sel_proto =
6027 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
6028 IEEE80211_PATH_PROTOCOL_VENDOR :
6029 IEEE80211_PATH_PROTOCOL_HWMP;
6030
6031 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
6032 setup->path_metric =
6033 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
6034 IEEE80211_PATH_METRIC_VENDOR :
6035 IEEE80211_PATH_METRIC_AIRTIME;
6036
581a8b0f 6037 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 6038 struct nlattr *ieattr =
581a8b0f 6039 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 6040 if (!is_valid_ie_attr(ieattr))
6041 return -EINVAL;
581a8b0f
JC		 6042 setup->ie = nla_data(ieattr);
6043 setup->ie_len = nla_len(ieattr);
c80d545d 6044 }
bb2798d4
TP		 6045 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
6046 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
6047 return -EINVAL;
6048 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 6049 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
6050 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 6051 if (setup->is_secure)
6052 setup->user_mpm = true;
c80d545d 6053
6e16d90b
CT		 6054 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
6055 if (!setup->user_mpm)
6056 return -EINVAL;
6057 setup->auth_id =
6058 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
6059 }
6060
c80d545d
JC		 6061 return 0;
6062}
6063
24bdd9f4 6064static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 6065 struct genl_info *info)
bd90fdcc
JB		 6066{
6067 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6068 struct net_device *dev = info->user_ptr[1];
29cbe68c 6069 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 6070 struct mesh_config cfg;
6071 u32 mask;
6072 int err;
6073
29cbe68c
JB		 6074 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
6075 return -EOPNOTSUPP;
6076
24bdd9f4 6077 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 6078 return -EOPNOTSUPP;
6079
24bdd9f4 6080 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 6081 if (err)
6082 return err;
6083
29cbe68c
JB		 6084 wdev_lock(wdev);
6085 if (!wdev->mesh_id_len)
6086 err = -ENOLINK;
6087
6088 if (!err)
e35e4d28 6089 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 6090
6091 wdev_unlock(wdev);
6092
6093 return err;
93da9cc1 6094}
6095
ad30ca2c
AN		 6096static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
6097 struct sk_buff *msg)
f130347c 6098{
f130347c
LR		 6099 struct nlattr *nl_reg_rules;
6100 unsigned int i;
f130347c 6101
458f4f9e
JB		 6102 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
6103 (regdom->dfs_region &&
6104 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 6105 goto nla_put_failure;
458f4f9e 6106
f130347c
LR		 6107 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
6108 if (!nl_reg_rules)
ad30ca2c 6109 goto nla_put_failure;
f130347c 6110
458f4f9e 6111 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 6112 struct nlattr *nl_reg_rule;
6113 const struct ieee80211_reg_rule *reg_rule;
6114 const struct ieee80211_freq_range *freq_range;
6115 const struct ieee80211_power_rule *power_rule;
97524820 6116 unsigned int max_bandwidth_khz;
f130347c 6117
458f4f9e 6118 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 6119 freq_range = &reg_rule->freq_range;
6120 power_rule = &reg_rule->power_rule;
6121
6122 nl_reg_rule = nla_nest_start(msg, i);
6123 if (!nl_reg_rule)
ad30ca2c 6124 goto nla_put_failure;
f130347c 6125
97524820
JD		 6126 max_bandwidth_khz = freq_range->max_bandwidth_khz;
6127 if (!max_bandwidth_khz)
6128 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
6129 reg_rule);
6130
9360ffd1
DM		 6131 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
6132 reg_rule->flags) ||
6133 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
6134 freq_range->start_freq_khz) ||
6135 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
6136 freq_range->end_freq_khz) ||
6137 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 6138 max_bandwidth_khz) ||
9360ffd1
DM		 6139 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
6140 power_rule->max_antenna_gain) ||
6141 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 6142 power_rule->max_eirp) ||
6143 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
6144 reg_rule->dfs_cac_ms))
ad30ca2c 6145 goto nla_put_failure;
f130347c
LR		 6146
6147 nla_nest_end(msg, nl_reg_rule);
6148 }
6149
6150 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 6151 return 0;
6152
6153nla_put_failure:
6154 return -EMSGSIZE;
6155}
6156
6157static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
6158{
6159 const struct ieee80211_regdomain *regdom = NULL;
6160 struct cfg80211_registered_device *rdev;
6161 struct wiphy *wiphy = NULL;
6162 struct sk_buff *msg;
6163 void *hdr;
6164
6165 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6166 if (!msg)
6167 return -ENOBUFS;
6168
6169 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6170 NL80211_CMD_GET_REG);
6171 if (!hdr)
6172 goto put_failure;
6173
6174 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 6175 bool self_managed;
6176
ad30ca2c
AN		 6177 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6178 if (IS_ERR(rdev)) {
6179 nlmsg_free(msg);
6180 return PTR_ERR(rdev);
6181 }
6182
6183 wiphy = &rdev->wiphy;
1bdd716c
AN		 6184 self_managed = wiphy->regulatory_flags &
6185 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 6186 regdom = get_wiphy_regdom(wiphy);
6187
1bdd716c
AN		 6188 /* a self-managed-reg device must have a private regdom */
6189 if (WARN_ON(!regdom && self_managed)) {
6190 nlmsg_free(msg);
6191 return -EINVAL;
6192 }
6193
ad30ca2c
AN		 6194 if (regdom &&
6195 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6196 goto nla_put_failure;
6197 }
6198
6199 if (!wiphy && reg_last_request_cell_base() &&
6200 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6201 NL80211_USER_REG_HINT_CELL_BASE))
6202 goto nla_put_failure;
6203
6204 rcu_read_lock();
6205
6206 if (!regdom)
6207 regdom = rcu_dereference(cfg80211_regdomain);
6208
6209 if (nl80211_put_regdom(regdom, msg))
6210 goto nla_put_failure_rcu;
6211
6212 rcu_read_unlock();
f130347c
LR		 6213
6214 genlmsg_end(msg, hdr);
5fe231e8 6215 return genlmsg_reply(msg, info);
f130347c 6216
458f4f9e
JB		 6217nla_put_failure_rcu:
6218 rcu_read_unlock();
f130347c
LR		 6219nla_put_failure:
6220 genlmsg_cancel(msg, hdr);
efe1cf0c 6221put_failure:
d080e275 6222 nlmsg_free(msg);
5fe231e8 6223 return -EMSGSIZE;
f130347c
LR		 6224}
6225
ad30ca2c
AN		 6226static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
6227 u32 seq, int flags, struct wiphy *wiphy,
6228 const struct ieee80211_regdomain *regdom)
6229{
6230 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6231 NL80211_CMD_GET_REG);
6232
6233 if (!hdr)
6234 return -1;
6235
6236 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6237
6238 if (nl80211_put_regdom(regdom, msg))
6239 goto nla_put_failure;
6240
6241 if (!wiphy && reg_last_request_cell_base() &&
6242 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6243 NL80211_USER_REG_HINT_CELL_BASE))
6244 goto nla_put_failure;
6245
6246 if (wiphy &&
6247 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6248 goto nla_put_failure;
6249
1bdd716c
AN		 6250 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
6251 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
6252 goto nla_put_failure;
6253
053c095a
JB		 6254 genlmsg_end(msg, hdr);
6255 return 0;
ad30ca2c
AN		 6256
6257nla_put_failure:
6258 genlmsg_cancel(msg, hdr);
6259 return -EMSGSIZE;
6260}
6261
6262static int nl80211_get_reg_dump(struct sk_buff *skb,
6263 struct netlink_callback *cb)
6264{
6265 const struct ieee80211_regdomain *regdom = NULL;
6266 struct cfg80211_registered_device *rdev;
6267 int err, reg_idx, start = cb->args[2];
6268
6269 rtnl_lock();
6270
6271 if (cfg80211_regdomain && start == 0) {
6272 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6273 NLM_F_MULTI, NULL,
6274 rtnl_dereference(cfg80211_regdomain));
6275 if (err < 0)
6276 goto out_err;
6277 }
6278
6279 /* the global regdom is idx 0 */
6280 reg_idx = 1;
6281 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
6282 regdom = get_wiphy_regdom(&rdev->wiphy);
6283 if (!regdom)
6284 continue;
6285
6286 if (++reg_idx <= start)
6287 continue;
6288
6289 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6290 NLM_F_MULTI, &rdev->wiphy, regdom);
6291 if (err < 0) {
6292 reg_idx--;
6293 break;
6294 }
6295 }
6296
6297 cb->args[2] = reg_idx;
6298 err = skb->len;
6299out_err:
6300 rtnl_unlock();
6301 return err;
6302}
6303
b6863036
JB		 6304#ifdef CONFIG_CFG80211_CRDA_SUPPORT
6305static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
6306 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6307 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6308 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6309 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6310 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6311 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6312 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
6313};
6314
6315static int parse_reg_rule(struct nlattr *tb[],
6316 struct ieee80211_reg_rule *reg_rule)
6317{
6318 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
6319 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
6320
6321 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
6322 return -EINVAL;
6323 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
6324 return -EINVAL;
6325 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
6326 return -EINVAL;
6327 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6328 return -EINVAL;
6329 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6330 return -EINVAL;
6331
6332 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
6333
6334 freq_range->start_freq_khz =
6335 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
6336 freq_range->end_freq_khz =
6337 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
6338 freq_range->max_bandwidth_khz =
6339 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
6340
6341 power_rule->max_eirp =
6342 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
6343
6344 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
6345 power_rule->max_antenna_gain =
6346 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
6347
6348 if (tb[NL80211_ATTR_DFS_CAC_TIME])
6349 reg_rule->dfs_cac_ms =
6350 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
6351
6352 return 0;
6353}
6354
b2e1b302
LR		 6355static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
6356{
6357 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
6358 struct nlattr *nl_reg_rule;
ea372c54
JB		 6359 char *alpha2;
6360 int rem_reg_rules, r;
b2e1b302 6361 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 6362 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 6363 struct ieee80211_regdomain *rd;
b2e1b302
LR		 6364
6365 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6366 return -EINVAL;
6367
6368 if (!info->attrs[NL80211_ATTR_REG_RULES])
6369 return -EINVAL;
6370
6371 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6372
8b60b078
LR		 6373 if (info->attrs[NL80211_ATTR_DFS_REGION])
6374 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
6375
b2e1b302 6376 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6377 rem_reg_rules) {
b2e1b302
LR		 6378 num_rules++;
6379 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 6380 return -EINVAL;
b2e1b302
LR		 6381 }
6382
e438768f
LR		 6383 if (!reg_is_valid_request(alpha2))
6384 return -EINVAL;
6385
b2e1b302 6386 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 6387 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 6388
6389 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 6390 if (!rd)
6391 return -ENOMEM;
b2e1b302
LR		 6392
6393 rd->n_reg_rules = num_rules;
6394 rd->alpha2[0] = alpha2[0];
6395 rd->alpha2[1] = alpha2[1];
6396
8b60b078
LR		 6397 /*
6398 * Disable DFS master mode if the DFS region was
6399 * not supported or known on this kernel.
6400 */
6401 if (reg_supported_dfs_region(dfs_region))
6402 rd->dfs_region = dfs_region;
6403
b2e1b302 6404 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6405 rem_reg_rules) {
bfe2c7b1
JB		 6406 r = nla_parse_nested(tb, NL80211_REG_RULE_ATTR_MAX,
6407 nl_reg_rule, reg_rule_policy);
ae811e21
JB		 6408 if (r)
6409 goto bad_reg;
b2e1b302
LR		 6410 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
6411 if (r)
6412 goto bad_reg;
6413
6414 rule_idx++;
6415
d0e18f83
LR		 6416 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
6417 r = -EINVAL;
b2e1b302 6418 goto bad_reg;
d0e18f83 6419 }
b2e1b302
LR		 6420 }
6421
06627990
JB		 6422 /* set_regdom takes ownership of rd */
6423 return set_regdom(rd, REGD_SOURCE_CRDA);
d2372b31 6424 bad_reg:
b2e1b302 6425 kfree(rd);
d0e18f83 6426 return r;
b2e1b302 6427}
b6863036 6428#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 6429
83f5e2cf
JB		 6430static int validate_scan_freqs(struct nlattr *freqs)
6431{
6432 struct nlattr *attr1, *attr2;
6433 int n_channels = 0, tmp1, tmp2;
6434
6435 nla_for_each_nested(attr1, freqs, tmp1) {
6436 n_channels++;
6437 /*
6438 * Some hardware has a limited channel list for
6439 * scanning, and it is pretty much nonsensical
6440 * to scan for a channel twice, so disallow that
6441 * and don't require drivers to check that the
6442 * channel list they get isn't longer than what
6443 * they can scan, as long as they can scan all
6444 * the channels they registered at once.
6445 */
6446 nla_for_each_nested(attr2, freqs, tmp2)
6447 if (attr1 != attr2 &&
6448 nla_get_u32(attr1) == nla_get_u32(attr2))
6449 return 0;
6450 }
6451
6452 return n_channels;
6453}
6454
57fbcce3 6455static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
38de03d2 6456{
57fbcce3 6457 return b < NUM_NL80211_BANDS && wiphy->bands[b];
38de03d2
AS		 6458}
6459
6460static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6461 struct cfg80211_bss_selection *bss_select)
6462{
6463 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6464 struct nlattr *nest;
6465 int err;
6466 bool found = false;
6467 int i;
6468
6469 /* only process one nested attribute */
6470 nest = nla_data(nla);
6471 if (!nla_ok(nest, nla_len(nest)))
6472 return -EINVAL;
6473
bfe2c7b1
JB		 6474 err = nla_parse_nested(attr, NL80211_BSS_SELECT_ATTR_MAX, nest,
6475 nl80211_bss_select_policy);
38de03d2
AS		 6476 if (err)
6477 return err;
6478
6479 /* only one attribute may be given */
6480 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6481 if (attr[i]) {
6482 if (found)
6483 return -EINVAL;
6484 found = true;
6485 }
6486 }
6487
6488 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6489
6490 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6491 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6492
6493 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6494 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6495 bss_select->param.band_pref =
6496 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6497 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6498 return -EINVAL;
6499 }
6500
6501 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6502 struct nl80211_bss_select_rssi_adjust *adj_param;
6503
6504 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6505 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6506 bss_select->param.adjust.band = adj_param->band;
6507 bss_select->param.adjust.delta = adj_param->delta;
6508 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6509 return -EINVAL;
6510 }
6511
6512 /* user-space did not provide behaviour attribute */
6513 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6514 return -EINVAL;
6515
6516 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6517 return -EINVAL;
6518
6519 return 0;
6520}
6521
ad2b26ab
JB		 6522static int nl80211_parse_random_mac(struct nlattr **attrs,
6523 u8 *mac_addr, u8 *mac_addr_mask)
6524{
6525 int i;
6526
6527 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 6528 eth_zero_addr(mac_addr);
6529 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 6530 mac_addr[0] = 0x2;
6531 mac_addr_mask[0] = 0x3;
6532
6533 return 0;
6534 }
6535
6536 /* need both or none */
6537 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6538 return -EINVAL;
6539
6540 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6541 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6542
6543 /* don't allow or configure an mcast address */
6544 if (!is_multicast_ether_addr(mac_addr_mask) ||
6545 is_multicast_ether_addr(mac_addr))
6546 return -EINVAL;
6547
6548 /*
6549 * allow users to pass a MAC address that has bits set outside
6550 * of the mask, but don't bother drivers with having to deal
6551 * with such bits
6552 */
6553 for (i = 0; i < ETH_ALEN; i++)
6554 mac_addr[i] &= mac_addr_mask[i];
6555
6556 return 0;
6557}
6558
34373d12
VT		 6559static bool cfg80211_off_channel_oper_allowed(struct wireless_dev *wdev)
6560{
6561 ASSERT_WDEV_LOCK(wdev);
6562
6563 if (!cfg80211_beaconing_iface_active(wdev))
6564 return true;
6565
6566 if (!(wdev->chandef.chan->flags & IEEE80211_CHAN_RADAR))
6567 return true;
6568
6569 return regulatory_pre_cac_allowed(wdev->wiphy);
6570}
6571
2a519311
JB		 6572static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6573{
4c476991 6574 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 6575 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 6576 struct cfg80211_scan_request *request;
2a519311
JB		 6577 struct nlattr *attr;
6578 struct wiphy *wiphy;
83f5e2cf 6579 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 6580 size_t ie_len;
2a519311 6581
f4a11bb0
JB		 6582 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6583 return -EINVAL;
6584
79c97e97 6585 wiphy = &rdev->wiphy;
2a519311 6586
cb3b7d87
AB		 6587 if (wdev->iftype == NL80211_IFTYPE_NAN)
6588 return -EOPNOTSUPP;
6589
4c476991
JB		 6590 if (!rdev->ops->scan)
6591 return -EOPNOTSUPP;
2a519311 6592
f9d15d16 6593 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 6594 err = -EBUSY;
6595 goto unlock;
6596 }
2a519311
JB		 6597
6598 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 6599 n_channels = validate_scan_freqs(
6600 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 6601 if (!n_channels) {
6602 err = -EINVAL;
6603 goto unlock;
6604 }
2a519311 6605 } else {
bdfbec2d 6606 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 6607 }
6608
6609 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6610 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6611 n_ssids++;
6612
f9f47529
JB		 6613 if (n_ssids > wiphy->max_scan_ssids) {
6614 err = -EINVAL;
6615 goto unlock;
6616 }
2a519311 6617
70692ad2
JM		 6618 if (info->attrs[NL80211_ATTR_IE])
6619 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6620 else
6621 ie_len = 0;
6622
f9f47529
JB		 6623 if (ie_len > wiphy->max_scan_ie_len) {
6624 err = -EINVAL;
6625 goto unlock;
6626 }
18a83659 6627
2a519311 6628 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 6629 + sizeof(*request->ssids) * n_ssids
6630 + sizeof(*request->channels) * n_channels
70692ad2 6631 + ie_len, GFP_KERNEL);
f9f47529
JB		 6632 if (!request) {
6633 err = -ENOMEM;
6634 goto unlock;
6635 }
2a519311 6636
2a519311 6637 if (n_ssids)
5ba63533 6638 request->ssids = (void *)&request->channels[n_channels];
2a519311 6639 request->n_ssids = n_ssids;
70692ad2 6640 if (ie_len) {
13874e4b 6641 if (n_ssids)
70692ad2
JM		 6642 request->ie = (void *)(request->ssids + n_ssids);
6643 else
6644 request->ie = (void *)(request->channels + n_channels);
6645 }
2a519311 6646
584991dc 6647 i = 0;
2a519311
JB		 6648 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6649 /* user specified, bail out if channel not found */
2a519311 6650 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6651 struct ieee80211_channel *chan;
6652
6653 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6654
6655 if (!chan) {
2a519311
JB		 6656 err = -EINVAL;
6657 goto out_free;
6658 }
584991dc
JB		 6659
6660 /* ignore disabled channels */
6661 if (chan->flags & IEEE80211_CHAN_DISABLED)
6662 continue;
6663
6664 request->channels[i] = chan;
2a519311
JB		 6665 i++;
6666 }
6667 } else {
57fbcce3 6668 enum nl80211_band band;
34850ab2 6669
2a519311 6670 /* all channels */
57fbcce3 6671 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2a519311 6672 int j;
7a087e74 6673
2a519311
JB		 6674 if (!wiphy->bands[band])
6675 continue;
6676 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6677 struct ieee80211_channel *chan;
6678
6679 chan = &wiphy->bands[band]->channels[j];
6680
6681 if (chan->flags & IEEE80211_CHAN_DISABLED)
6682 continue;
6683
6684 request->channels[i] = chan;
2a519311
JB		 6685 i++;
6686 }
6687 }
6688 }
6689
584991dc
JB		 6690 if (!i) {
6691 err = -EINVAL;
6692 goto out_free;
6693 }
6694
6695 request->n_channels = i;
6696
34373d12
VT		 6697 wdev_lock(wdev);
6698 if (!cfg80211_off_channel_oper_allowed(wdev)) {
6699 struct ieee80211_channel *chan;
6700
6701 if (request->n_channels != 1) {
6702 wdev_unlock(wdev);
6703 err = -EBUSY;
6704 goto out_free;
6705 }
6706
6707 chan = request->channels[0];
6708 if (chan->center_freq != wdev->chandef.chan->center_freq) {
6709 wdev_unlock(wdev);
6710 err = -EBUSY;
6711 goto out_free;
6712 }
6713 }
6714 wdev_unlock(wdev);
6715
2a519311 6716 i = 0;
13874e4b 6717 if (n_ssids) {
2a519311 6718 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6719 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6720 err = -EINVAL;
6721 goto out_free;
6722 }
57a27e1d 6723 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6724 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6725 i++;
6726 }
6727 }
6728
70692ad2
JM		 6729 if (info->attrs[NL80211_ATTR_IE]) {
6730 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6731 memcpy((void *)request->ie,
6732 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6733 request->ie_len);
6734 }
6735
57fbcce3 6736 for (i = 0; i < NUM_NL80211_BANDS; i++)
a401d2bb
JB		 6737 if (wiphy->bands[i])
6738 request->rates[i] =
6739 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6740
6741 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6742 nla_for_each_nested(attr,
6743 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6744 tmp) {
57fbcce3 6745 enum nl80211_band band = nla_type(attr);
34850ab2 6746
57fbcce3 6747 if (band < 0 || band >= NUM_NL80211_BANDS) {
34850ab2
JB		 6748 err = -EINVAL;
6749 goto out_free;
6750 }
1b09cd82
FF		 6751
6752 if (!wiphy->bands[band])
6753 continue;
6754
34850ab2
JB		 6755 err = ieee80211_get_ratemask(wiphy->bands[band],
6756 nla_data(attr),
6757 nla_len(attr),
6758 &request->rates[band]);
6759 if (err)
6760 goto out_free;
6761 }
6762 }
6763
1d76250b
AS		 6764 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6765 if (!wiphy_ext_feature_isset(wiphy,
6766 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6767 err = -EOPNOTSUPP;
6768 goto out_free;
6769 }
6770
6771 request->duration =
6772 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6773 request->duration_mandatory =
6774 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6775 }
6776
46856bbf 6777 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 6778 request->flags = nla_get_u32(
6779 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6780 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6781 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6782 err = -EOPNOTSUPP;
6783 goto out_free;
6784 }
ad2b26ab
JB		 6785
6786 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6787 if (!(wiphy->features &
6788 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6789 err = -EOPNOTSUPP;
6790 goto out_free;
6791 }
6792
6793 if (wdev->current_bss) {
6794 err = -EOPNOTSUPP;
6795 goto out_free;
6796 }
6797
6798 err = nl80211_parse_random_mac(info->attrs,
6799 request->mac_addr,
6800 request->mac_addr_mask);
6801 if (err)
6802 goto out_free;
6803 }
46856bbf 6804 }
ed473771 6805
e9f935e3
RM		 6806 request->no_cck =
6807 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6808
2fa436b3
VK		 6809 /* Initial implementation used NL80211_ATTR_MAC to set the specific
6810 * BSSID to scan for. This was problematic because that same attribute
6811 * was already used for another purpose (local random MAC address). The
6812 * NL80211_ATTR_BSSID attribute was added to fix this. For backwards
6813 * compatibility with older userspace components, also use the
6814 * NL80211_ATTR_MAC value here if it can be determined to be used for
6815 * the specific BSSID use case instead of the random MAC address
6816 * (NL80211_ATTR_SCAN_FLAGS is used to enable random MAC address use).
6817 */
6818 if (info->attrs[NL80211_ATTR_BSSID])
6819 memcpy(request->bssid,
6820 nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN);
6821 else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) &&
6822 info->attrs[NL80211_ATTR_MAC])
818965d3
JM		 6823 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6824 ETH_ALEN);
6825 else
6826 eth_broadcast_addr(request->bssid);
6827
fd014284 6828 request->wdev = wdev;
79c97e97 6829 request->wiphy = &rdev->wiphy;
15d6030b 6830 request->scan_start = jiffies;
2a519311 6831
79c97e97 6832 rdev->scan_req = request;
e35e4d28 6833 err = rdev_scan(rdev, request);
2a519311 6834
463d0183 6835 if (!err) {
fd014284
JB		 6836 nl80211_send_scan_start(rdev, wdev);
6837 if (wdev->netdev)
6838 dev_hold(wdev->netdev);
4c476991 6839 } else {
2a519311 6840 out_free:
79c97e97 6841 rdev->scan_req = NULL;
2a519311
JB		 6842 kfree(request);
6843 }
3b85875a 6844
f9f47529 6845 unlock:
2a519311
JB		 6846 return err;
6847}
6848
91d3ab46
VK		 6849static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6850{
6851 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6852 struct wireless_dev *wdev = info->user_ptr[1];
6853
6854 if (!rdev->ops->abort_scan)
6855 return -EOPNOTSUPP;
6856
6857 if (rdev->scan_msg)
6858 return 0;
6859
6860 if (!rdev->scan_req)
6861 return -ENOENT;
6862
6863 rdev_abort_scan(rdev, wdev);
6864 return 0;
6865}
6866
3b06d277
AS		 6867static int
6868nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6869 struct cfg80211_sched_scan_request *request,
6870 struct nlattr **attrs)
6871{
6872 int tmp, err, i = 0;
6873 struct nlattr *attr;
6874
6875 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6876 u32 interval;
6877
6878 /*
6879 * If scan plans are not specified,
5a88de53 6880 * %NL80211_ATTR_SCHED_SCAN_INTERVAL will be specified. In this
3b06d277
AS		 6881 * case one scan plan will be set with the specified scan
6882 * interval and infinite number of iterations.
6883 */
3b06d277
AS		 6884 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6885 if (!interval)
6886 return -EINVAL;
6887
6888 request->scan_plans[0].interval =
6889 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6890 if (!request->scan_plans[0].interval)
6891 return -EINVAL;
6892
6893 if (request->scan_plans[0].interval >
6894 wiphy->max_sched_scan_plan_interval)
6895 request->scan_plans[0].interval =
6896 wiphy->max_sched_scan_plan_interval;
6897
6898 return 0;
6899 }
6900
6901 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6902 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6903
6904 if (WARN_ON(i >= n_plans))
6905 return -EINVAL;
6906
bfe2c7b1
JB		 6907 err = nla_parse_nested(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6908 attr, nl80211_plan_policy);
3b06d277
AS		 6909 if (err)
6910 return err;
6911
6912 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6913 return -EINVAL;
6914
6915 request->scan_plans[i].interval =
6916 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6917 if (!request->scan_plans[i].interval ||
6918 request->scan_plans[i].interval >
6919 wiphy->max_sched_scan_plan_interval)
6920 return -EINVAL;
6921
6922 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6923 request->scan_plans[i].iterations =
6924 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6925 if (!request->scan_plans[i].iterations ||
6926 (request->scan_plans[i].iterations >
6927 wiphy->max_sched_scan_plan_iterations))
6928 return -EINVAL;
6929 } else if (i < n_plans - 1) {
6930 /*
6931 * All scan plans but the last one must specify
6932 * a finite number of iterations
6933 */
6934 return -EINVAL;
6935 }
6936
6937 i++;
6938 }
6939
6940 /*
6941 * The last scan plan must not specify the number of
6942 * iterations, it is supposed to run infinitely
6943 */
6944 if (request->scan_plans[n_plans - 1].iterations)
6945 return -EINVAL;
6946
6947 return 0;
6948}
6949
256da02d 6950static struct cfg80211_sched_scan_request *
ad2b26ab 6951nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
aad1e812 6952 struct nlattr **attrs, int max_match_sets)
807f8a8c
LC		 6953{
6954 struct cfg80211_sched_scan_request *request;
807f8a8c 6955 struct nlattr *attr;
3b06d277 6956 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
57fbcce3 6957 enum nl80211_band band;
807f8a8c 6958 size_t ie_len;
a1f1c21c 6959 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6960 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6961
256da02d
LC		 6962 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6963 return ERR_PTR(-EINVAL);
807f8a8c 6964
256da02d 6965 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6966 n_channels = validate_scan_freqs(
256da02d 6967 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6968 if (!n_channels)
256da02d 6969 return ERR_PTR(-EINVAL);
807f8a8c 6970 } else {
bdfbec2d 6971 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6972 }
6973
256da02d
LC		 6974 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6975 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6976 tmp)
6977 n_ssids++;
6978
93b6aa69 6979 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6980 return ERR_PTR(-EINVAL);
807f8a8c 6981
ea73cbce
JB		 6982 /*
6983 * First, count the number of 'real' matchsets. Due to an issue with
6984 * the old implementation, matchsets containing only the RSSI attribute
6985 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6986 * RSSI for all matchsets, rather than their own matchset for reporting
6987 * all APs with a strong RSSI. This is needed to be compatible with
6988 * older userspace that treated a matchset with only the RSSI as the
6989 * global RSSI for all other matchsets - if there are other matchsets.
6990 */
256da02d 6991 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6992 nla_for_each_nested(attr,
256da02d 6993 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6994 tmp) {
6995 struct nlattr *rssi;
6996
bfe2c7b1
JB		 6997 err = nla_parse_nested(tb,
6998 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6999 attr, nl80211_match_policy);
ea73cbce 7000 if (err)
256da02d 7001 return ERR_PTR(err);
ea73cbce
JB		 7002 /* add other standalone attributes here */
7003 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
7004 n_match_sets++;
7005 continue;
7006 }
7007 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7008 if (rssi)
7009 default_match_rssi = nla_get_s32(rssi);
7010 }
7011 }
7012
7013 /* However, if there's no other matchset, add the RSSI one */
7014 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
7015 n_match_sets = 1;
a1f1c21c 7016
aad1e812 7017 if (n_match_sets > max_match_sets)
256da02d 7018 return ERR_PTR(-EINVAL);
a1f1c21c 7019
256da02d
LC		 7020 if (attrs[NL80211_ATTR_IE])
7021 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 7022 else
7023 ie_len = 0;
7024
5a865bad 7025 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 7026 return ERR_PTR(-EINVAL);
c10841ca 7027
3b06d277
AS		 7028 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
7029 /*
7030 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
7031 * each scan plan already specifies its own interval
7032 */
7033 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7034 return ERR_PTR(-EINVAL);
7035
7036 nla_for_each_nested(attr,
7037 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
7038 n_plans++;
7039 } else {
7040 /*
7041 * The scan interval attribute is kept for backward
7042 * compatibility. If no scan plans are specified and sched scan
7043 * interval is specified, one scan plan will be set with this
7044 * scan interval and infinite number of iterations.
7045 */
7046 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7047 return ERR_PTR(-EINVAL);
7048
7049 n_plans = 1;
7050 }
7051
7052 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
7053 return ERR_PTR(-EINVAL);
7054
bf95ecdb 7055 if (!wiphy_ext_feature_isset(
7056 wiphy, NL80211_EXT_FEATURE_SCHED_SCAN_RELATIVE_RSSI) &&
7057 (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] ||
7058 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]))
7059 return ERR_PTR(-EINVAL);
7060
807f8a8c 7061 request = kzalloc(sizeof(*request)
a2cd43c5 7062 + sizeof(*request->ssids) * n_ssids
a1f1c21c 7063 + sizeof(*request->match_sets) * n_match_sets
3b06d277 7064 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 7065 + sizeof(*request->channels) * n_channels
807f8a8c 7066 + ie_len, GFP_KERNEL);
256da02d
LC		 7067 if (!request)
7068 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 7069
7070 if (n_ssids)
7071 request->ssids = (void *)&request->channels[n_channels];
7072 request->n_ssids = n_ssids;
7073 if (ie_len) {
13874e4b 7074 if (n_ssids)
807f8a8c
LC		 7075 request->ie = (void *)(request->ssids + n_ssids);
7076 else
7077 request->ie = (void *)(request->channels + n_channels);
7078 }
7079
a1f1c21c
LC		 7080 if (n_match_sets) {
7081 if (request->ie)
7082 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 7083 else if (n_ssids)
a1f1c21c
LC		 7084 request->match_sets =
7085 (void *)(request->ssids + n_ssids);
7086 else
7087 request->match_sets =
7088 (void *)(request->channels + n_channels);
7089 }
7090 request->n_match_sets = n_match_sets;
7091
3b06d277
AS		 7092 if (n_match_sets)
7093 request->scan_plans = (void *)(request->match_sets +
7094 n_match_sets);
7095 else if (request->ie)
7096 request->scan_plans = (void *)(request->ie + ie_len);
7097 else if (n_ssids)
7098 request->scan_plans = (void *)(request->ssids + n_ssids);
7099 else
7100 request->scan_plans = (void *)(request->channels + n_channels);
7101
7102 request->n_scan_plans = n_plans;
7103
807f8a8c 7104 i = 0;
256da02d 7105 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 7106 /* user specified, bail out if channel not found */
7107 nla_for_each_nested(attr,
256da02d 7108 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 7109 tmp) {
7110 struct ieee80211_channel *chan;
7111
7112 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
7113
7114 if (!chan) {
7115 err = -EINVAL;
7116 goto out_free;
7117 }
7118
7119 /* ignore disabled channels */
7120 if (chan->flags & IEEE80211_CHAN_DISABLED)
7121 continue;
7122
7123 request->channels[i] = chan;
7124 i++;
7125 }
7126 } else {
7127 /* all channels */
57fbcce3 7128 for (band = 0; band < NUM_NL80211_BANDS; band++) {
807f8a8c 7129 int j;
7a087e74 7130
807f8a8c
LC		 7131 if (!wiphy->bands[band])
7132 continue;
7133 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
7134 struct ieee80211_channel *chan;
7135
7136 chan = &wiphy->bands[band]->channels[j];
7137
7138 if (chan->flags & IEEE80211_CHAN_DISABLED)
7139 continue;
7140
7141 request->channels[i] = chan;
7142 i++;
7143 }
7144 }
7145 }
7146
7147 if (!i) {
7148 err = -EINVAL;
7149 goto out_free;
7150 }
7151
7152 request->n_channels = i;
7153
7154 i = 0;
13874e4b 7155 if (n_ssids) {
256da02d 7156 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 7157 tmp) {
57a27e1d 7158 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 7159 err = -EINVAL;
7160 goto out_free;
7161 }
57a27e1d 7162 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 7163 memcpy(request->ssids[i].ssid, nla_data(attr),
7164 nla_len(attr));
807f8a8c
LC		 7165 i++;
7166 }
7167 }
7168
a1f1c21c 7169 i = 0;
256da02d 7170 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 7171 nla_for_each_nested(attr,
256da02d 7172 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 7173 tmp) {
88e920b4 7174 struct nlattr *ssid, *rssi;
a1f1c21c 7175
bfe2c7b1
JB		 7176 err = nla_parse_nested(tb,
7177 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
7178 attr, nl80211_match_policy);
ae811e21
JB		 7179 if (err)
7180 goto out_free;
4a4ab0d7 7181 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 7182 if (ssid) {
ea73cbce
JB		 7183 if (WARN_ON(i >= n_match_sets)) {
7184 /* this indicates a programming error,
7185 * the loop above should have verified
7186 * things properly
7187 */
7188 err = -EINVAL;
7189 goto out_free;
7190 }
7191
a1f1c21c
LC		 7192 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
7193 err = -EINVAL;
7194 goto out_free;
7195 }
7196 memcpy(request->match_sets[i].ssid.ssid,
7197 nla_data(ssid), nla_len(ssid));
7198 request->match_sets[i].ssid.ssid_len =
7199 nla_len(ssid);
56ab364f 7200 /* special attribute - old implementation w/a */
ea73cbce
JB		 7201 request->match_sets[i].rssi_thold =
7202 default_match_rssi;
7203 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7204 if (rssi)
7205 request->match_sets[i].rssi_thold =
7206 nla_get_s32(rssi);
a1f1c21c
LC		 7207 }
7208 i++;
7209 }
ea73cbce
JB		 7210
7211 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 7212 if (i == 0 && n_match_sets)
ea73cbce
JB		 7213 request->match_sets[0].rssi_thold = default_match_rssi;
7214
7215 request->min_rssi_thold = INT_MAX;
7216 for (i = 0; i < n_match_sets; i++)
7217 request->min_rssi_thold =
7218 min(request->match_sets[i].rssi_thold,
7219 request->min_rssi_thold);
7220 } else {
7221 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 7222 }
7223
9900e484
JB		 7224 if (ie_len) {
7225 request->ie_len = ie_len;
807f8a8c 7226 memcpy((void *)request->ie,
256da02d 7227 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 7228 request->ie_len);
7229 }
7230
256da02d 7231 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 7232 request->flags = nla_get_u32(
256da02d 7233 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 7234 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
7235 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 7236 err = -EOPNOTSUPP;
7237 goto out_free;
7238 }
ad2b26ab
JB		 7239
7240 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
7241 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
7242
7243 if (!wdev) /* must be net-detect */
7244 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
7245
7246 if (!(wiphy->features & flg)) {
7247 err = -EOPNOTSUPP;
7248 goto out_free;
7249 }
7250
7251 if (wdev && wdev->current_bss) {
7252 err = -EOPNOTSUPP;
7253 goto out_free;
7254 }
7255
7256 err = nl80211_parse_random_mac(attrs, request->mac_addr,
7257 request->mac_addr_mask);
7258 if (err)
7259 goto out_free;
7260 }
46856bbf 7261 }
ed473771 7262
9c748934
LC		 7263 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
7264 request->delay =
7265 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
7266
bf95ecdb 7267 if (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]) {
7268 request->relative_rssi = nla_get_s8(
7269 attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]);
7270 request->relative_rssi_set = true;
7271 }
7272
7273 if (request->relative_rssi_set &&
7274 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]) {
7275 struct nl80211_bss_select_rssi_adjust *rssi_adjust;
7276
7277 rssi_adjust = nla_data(
7278 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]);
7279 request->rssi_adjust.band = rssi_adjust->band;
7280 request->rssi_adjust.delta = rssi_adjust->delta;
7281 if (!is_band_valid(wiphy, request->rssi_adjust.band)) {
7282 err = -EINVAL;
7283 goto out_free;
7284 }
7285 }
7286
3b06d277
AS		 7287 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
7288 if (err)
7289 goto out_free;
7290
15d6030b 7291 request->scan_start = jiffies;
807f8a8c 7292
256da02d 7293 return request;
807f8a8c
LC		 7294
7295out_free:
7296 kfree(request);
256da02d
LC		 7297 return ERR_PTR(err);
7298}
7299
7300static int nl80211_start_sched_scan(struct sk_buff *skb,
7301 struct genl_info *info)
7302{
7303 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7304 struct net_device *dev = info->user_ptr[1];
ad2b26ab 7305 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 7306 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 7307 int err;
7308
7309 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
7310 !rdev->ops->sched_scan_start)
7311 return -EOPNOTSUPP;
7312
7313 if (rdev->sched_scan_req)
7314 return -EINPROGRESS;
7315
31a60ed1 7316 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
aad1e812
AVS		 7317 info->attrs,
7318 rdev->wiphy.max_match_sets);
31a60ed1
JR		 7319
7320 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 7321 if (err)
7322 goto out_err;
7323
31a60ed1 7324 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 7325 if (err)
7326 goto out_free;
7327
31a60ed1
JR		 7328 sched_scan_req->dev = dev;
7329 sched_scan_req->wiphy = &rdev->wiphy;
7330
93a1e86c
JR		 7331 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
7332 sched_scan_req->owner_nlportid = info->snd_portid;
7333
31a60ed1 7334 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 7335
7336 nl80211_send_sched_scan(rdev, dev,
7337 NL80211_CMD_START_SCHED_SCAN);
7338 return 0;
7339
7340out_free:
31a60ed1 7341 kfree(sched_scan_req);
256da02d 7342out_err:
807f8a8c
LC		 7343 return err;
7344}
7345
7346static int nl80211_stop_sched_scan(struct sk_buff *skb,
7347 struct genl_info *info)
7348{
7349 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7350
7351 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
7352 !rdev->ops->sched_scan_stop)
7353 return -EOPNOTSUPP;
7354
5fe231e8 7355 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 7356}
7357
04f39047
SW		 7358static int nl80211_start_radar_detection(struct sk_buff *skb,
7359 struct genl_info *info)
7360{
7361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7362 struct net_device *dev = info->user_ptr[1];
7363 struct wireless_dev *wdev = dev->ieee80211_ptr;
7364 struct cfg80211_chan_def chandef;
55f7435c 7365 enum nl80211_dfs_regions dfs_region;
31559f35 7366 unsigned int cac_time_ms;
04f39047
SW		 7367 int err;
7368
55f7435c
LR		 7369 dfs_region = reg_get_dfs_region(wdev->wiphy);
7370 if (dfs_region == NL80211_DFS_UNSET)
7371 return -EINVAL;
7372
04f39047
SW		 7373 err = nl80211_parse_chandef(rdev, info, &chandef);
7374 if (err)
7375 return err;
7376
ff311bc1
SW		 7377 if (netif_carrier_ok(dev))
7378 return -EBUSY;
7379
04f39047
SW		 7380 if (wdev->cac_started)
7381 return -EBUSY;
7382
2beb6dab 7383 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 7384 wdev->iftype);
04f39047
SW		 7385 if (err < 0)
7386 return err;
7387
7388 if (err == 0)
7389 return -EINVAL;
7390
fe7c3a1f 7391 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 7392 return -EINVAL;
7393
7394 if (!rdev->ops->start_radar_detection)
7395 return -EOPNOTSUPP;
7396
31559f35
JD		 7397 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
7398 if (WARN_ON(!cac_time_ms))
7399 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
7400
a1056b1b 7401 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 7402 if (!err) {
9e0e2961 7403 wdev->chandef = chandef;
04f39047
SW		 7404 wdev->cac_started = true;
7405 wdev->cac_start_time = jiffies;
31559f35 7406 wdev->cac_time_ms = cac_time_ms;
04f39047 7407 }
04f39047
SW		 7408 return err;
7409}
7410
16ef1fe2
SW		 7411static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
7412{
7413 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7414 struct net_device *dev = info->user_ptr[1];
7415 struct wireless_dev *wdev = dev->ieee80211_ptr;
7416 struct cfg80211_csa_settings params;
7417 /* csa_attrs is defined static to avoid waste of stack size - this
7418 * function is called under RTNL lock, so this should not be a problem.
7419 */
7420 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 7421 int err;
ee4bc9e7 7422 bool need_new_beacon = false;
9a774c78 7423 int len, i;
252e07ca 7424 u32 cs_count;
16ef1fe2
SW		 7425
7426 if (!rdev->ops->channel_switch ||
7427 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
7428 return -EOPNOTSUPP;
7429
ee4bc9e7
SW		 7430 switch (dev->ieee80211_ptr->iftype) {
7431 case NL80211_IFTYPE_AP:
7432 case NL80211_IFTYPE_P2P_GO:
7433 need_new_beacon = true;
7434
7435 /* useless if AP is not running */
7436 if (!wdev->beacon_interval)
1ff79dfa 7437 return -ENOTCONN;
ee4bc9e7
SW		 7438 break;
7439 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 7440 if (!wdev->ssid_len)
7441 return -ENOTCONN;
7442 break;
c6da674a 7443 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 7444 if (!wdev->mesh_id_len)
7445 return -ENOTCONN;
ee4bc9e7
SW		 7446 break;
7447 default:
16ef1fe2 7448 return -EOPNOTSUPP;
ee4bc9e7 7449 }
16ef1fe2
SW		 7450
7451 memset(&params, 0, sizeof(params));
7452
7453 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7454 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
7455 return -EINVAL;
7456
7457 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 7458 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 7459 return -EINVAL;
7460
252e07ca
LC		 7461 /* Even though the attribute is u32, the specification says
7462 * u8, so let's make sure we don't overflow.
7463 */
7464 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
7465 if (cs_count > 255)
7466 return -EINVAL;
7467
7468 params.count = cs_count;
16ef1fe2 7469
ee4bc9e7
SW		 7470 if (!need_new_beacon)
7471 goto skip_beacons;
7472
16ef1fe2
SW		 7473 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
7474 if (err)
7475 return err;
7476
7477 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
7478 info->attrs[NL80211_ATTR_CSA_IES],
7479 nl80211_policy);
7480 if (err)
7481 return err;
7482
7483 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
7484 if (err)
7485 return err;
7486
7487 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
7488 return -EINVAL;
7489
9a774c78
AO		 7490 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7491 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7492 return -EINVAL;
7493
9a774c78
AO		 7494 params.n_counter_offsets_beacon = len / sizeof(u16);
7495 if (rdev->wiphy.max_num_csa_counters &&
7496 (params.n_counter_offsets_beacon >
7497 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 7498 return -EINVAL;
7499
9a774c78
AO		 7500 params.counter_offsets_beacon =
7501 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7502
7503 /* sanity checks - counters should fit and be the same */
7504 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7505 u16 offset = params.counter_offsets_beacon[i];
7506
7507 if (offset >= params.beacon_csa.tail_len)
7508 return -EINVAL;
7509
7510 if (params.beacon_csa.tail[offset] != params.count)
7511 return -EINVAL;
7512 }
7513
16ef1fe2 7514 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 7515 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7516 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7517 return -EINVAL;
7518
9a774c78
AO		 7519 params.n_counter_offsets_presp = len / sizeof(u16);
7520 if (rdev->wiphy.max_num_csa_counters &&
ad5987b4 7521 (params.n_counter_offsets_presp >
9a774c78 7522 rdev->wiphy.max_num_csa_counters))
16ef1fe2 7523 return -EINVAL;
9a774c78
AO		 7524
7525 params.counter_offsets_presp =
7526 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7527
7528 /* sanity checks - counters should fit and be the same */
7529 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7530 u16 offset = params.counter_offsets_presp[i];
7531
7532 if (offset >= params.beacon_csa.probe_resp_len)
7533 return -EINVAL;
7534
7535 if (params.beacon_csa.probe_resp[offset] !=
7536 params.count)
7537 return -EINVAL;
7538 }
16ef1fe2
SW		 7539 }
7540
ee4bc9e7 7541skip_beacons:
16ef1fe2
SW		 7542 err = nl80211_parse_chandef(rdev, info, &params.chandef);
7543 if (err)
7544 return err;
7545
923b352f
AN		 7546 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
7547 wdev->iftype))
16ef1fe2
SW		 7548 return -EINVAL;
7549
2beb6dab
LC		 7550 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7551 &params.chandef,
7552 wdev->iftype);
7553 if (err < 0)
7554 return err;
7555
dcc6c2f5 7556 if (err > 0)
2beb6dab 7557 params.radar_required = true;
16ef1fe2 7558
16ef1fe2
SW		 7559 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7560 params.block_tx = true;
7561
c56589ed
SW		 7562 wdev_lock(wdev);
7563 err = rdev_channel_switch(rdev, dev, &params);
7564 wdev_unlock(wdev);
7565
7566 return err;
16ef1fe2
SW		 7567}
7568
9720bb3a
JB		 7569static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7570 u32 seq, int flags,
2a519311 7571 struct cfg80211_registered_device *rdev,
48ab905d
JB		 7572 struct wireless_dev *wdev,
7573 struct cfg80211_internal_bss *intbss)
2a519311 7574{
48ab905d 7575 struct cfg80211_bss *res = &intbss->pub;
9caf0364 7576 const struct cfg80211_bss_ies *ies;
2a519311
JB		 7577 void *hdr;
7578 struct nlattr *bss;
48ab905d
JB		 7579
7580 ASSERT_WDEV_LOCK(wdev);
2a519311 7581
15e47304 7582 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 7583 NL80211_CMD_NEW_SCAN_RESULTS);
7584 if (!hdr)
7585 return -1;
7586
9720bb3a
JB		 7587 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7588
97990a06
JB		 7589 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7590 goto nla_put_failure;
7591 if (wdev->netdev &&
9360ffd1
DM		 7592 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7593 goto nla_put_failure;
2dad624e
ND		 7594 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7595 NL80211_ATTR_PAD))
97990a06 7596 goto nla_put_failure;
2a519311
JB		 7597
7598 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7599 if (!bss)
7600 goto nla_put_failure;
9360ffd1 7601 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 7602 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 7603 goto nla_put_failure;
9caf0364
JB		 7604
7605 rcu_read_lock();
0e227084
JB		 7606 /* indicate whether we have probe response data or not */
7607 if (rcu_access_pointer(res->proberesp_ies) &&
7608 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7609 goto fail_unlock_rcu;
7610
7611 /* this pointer prefers to be pointed to probe response data
7612 * but is always valid
7613 */
9caf0364 7614 ies = rcu_dereference(res->ies);
8cef2c9d 7615 if (ies) {
2dad624e
ND		 7616 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7617 NL80211_BSS_PAD))
8cef2c9d 7618 goto fail_unlock_rcu;
8cef2c9d
JB		 7619 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7620 ies->len, ies->data))
7621 goto fail_unlock_rcu;
9caf0364 7622 }
0e227084
JB		 7623
7624 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 7625 ies = rcu_dereference(res->beacon_ies);
0e227084 7626 if (ies && ies->from_beacon) {
2dad624e
ND		 7627 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7628 NL80211_BSS_PAD))
8cef2c9d
JB		 7629 goto fail_unlock_rcu;
7630 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7631 ies->len, ies->data))
7632 goto fail_unlock_rcu;
9caf0364
JB		 7633 }
7634 rcu_read_unlock();
7635
9360ffd1
DM		 7636 if (res->beacon_interval &&
7637 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7638 goto nla_put_failure;
7639 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7640 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 7641 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 7642 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7643 jiffies_to_msecs(jiffies - intbss->ts)))
7644 goto nla_put_failure;
2a519311 7645
1d76250b
AS		 7646 if (intbss->parent_tsf &&
7647 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7648 intbss->parent_tsf, NL80211_BSS_PAD) ||
7649 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7650 intbss->parent_bssid)))
7651 goto nla_put_failure;
7652
6e19bc4b 7653 if (intbss->ts_boottime &&
2dad624e
ND		 7654 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7655 intbss->ts_boottime, NL80211_BSS_PAD))
6e19bc4b
DS		 7656 goto nla_put_failure;
7657
77965c97 7658 switch (rdev->wiphy.signal_type) {
2a519311 7659 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 7660 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7661 goto nla_put_failure;
2a519311
JB		 7662 break;
7663 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 7664 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7665 goto nla_put_failure;
2a519311
JB		 7666 break;
7667 default:
7668 break;
7669 }
7670
48ab905d 7671 switch (wdev->iftype) {
074ac8df 7672 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 7673 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 7674 if (intbss == wdev->current_bss &&
7675 nla_put_u32(msg, NL80211_BSS_STATUS,
7676 NL80211_BSS_STATUS_ASSOCIATED))
7677 goto nla_put_failure;
48ab905d
JB		 7678 break;
7679 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 7680 if (intbss == wdev->current_bss &&
7681 nla_put_u32(msg, NL80211_BSS_STATUS,
7682 NL80211_BSS_STATUS_IBSS_JOINED))
7683 goto nla_put_failure;
48ab905d
JB		 7684 break;
7685 default:
7686 break;
7687 }
7688
2a519311
JB		 7689 nla_nest_end(msg, bss);
7690
053c095a
JB		 7691 genlmsg_end(msg, hdr);
7692 return 0;
2a519311 7693
8cef2c9d
JB		 7694 fail_unlock_rcu:
7695 rcu_read_unlock();
2a519311
JB		 7696 nla_put_failure:
7697 genlmsg_cancel(msg, hdr);
7698 return -EMSGSIZE;
7699}
7700
97990a06 7701static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 7702{
48ab905d 7703 struct cfg80211_registered_device *rdev;
2a519311 7704 struct cfg80211_internal_bss *scan;
48ab905d 7705 struct wireless_dev *wdev;
97990a06 7706 int start = cb->args[2], idx = 0;
2a519311
JB		 7707 int err;
7708
97990a06 7709 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7710 if (err)
7711 return err;
2a519311 7712
48ab905d
JB		 7713 wdev_lock(wdev);
7714 spin_lock_bh(&rdev->bss_lock);
7715 cfg80211_bss_expire(rdev);
7716
9720bb3a
JB		 7717 cb->seq = rdev->bss_generation;
7718
48ab905d 7719 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 7720 if (++idx <= start)
7721 continue;
9720bb3a 7722 if (nl80211_send_bss(skb, cb,
2a519311 7723 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 7724 rdev, wdev, scan) < 0) {
2a519311 7725 idx--;
67748893 7726 break;
2a519311
JB		 7727 }
7728 }
7729
48ab905d
JB		 7730 spin_unlock_bh(&rdev->bss_lock);
7731 wdev_unlock(wdev);
2a519311 7732
97990a06
JB		 7733 cb->args[2] = idx;
7734 nl80211_finish_wdev_dump(rdev);
2a519311 7735
67748893 7736 return skb->len;
2a519311
JB		 7737}
7738
15e47304 7739static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7740 int flags, struct net_device *dev,
7741 bool allow_radio_stats,
7742 struct survey_info *survey)
61fa713c
HS		 7743{
7744 void *hdr;
7745 struct nlattr *infoattr;
7746
11f78ac3
JB		 7747 /* skip radio stats if userspace didn't request them */
7748 if (!survey->channel && !allow_radio_stats)
7749 return 0;
7750
15e47304 7751 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7752 NL80211_CMD_NEW_SURVEY_RESULTS);
7753 if (!hdr)
7754 return -ENOMEM;
7755
9360ffd1
DM		 7756 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7757 goto nla_put_failure;
61fa713c
HS		 7758
7759 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7760 if (!infoattr)
7761 goto nla_put_failure;
7762
11f78ac3
JB		 7763 if (survey->channel &&
7764 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7765 survey->channel->center_freq))
7766 goto nla_put_failure;
7767
7768 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7769 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7770 goto nla_put_failure;
7771 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7772 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7773 goto nla_put_failure;
4ed20beb 7774 if ((survey->filled & SURVEY_INFO_TIME) &&
2dad624e
ND		 7775 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7776 survey->time, NL80211_SURVEY_INFO_PAD))
9360ffd1 7777 goto nla_put_failure;
4ed20beb 7778 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
2dad624e
ND		 7779 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7780 survey->time_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7781 goto nla_put_failure;
4ed20beb 7782 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
2dad624e
ND		 7783 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7784 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7785 goto nla_put_failure;
4ed20beb 7786 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
2dad624e
ND		 7787 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7788 survey->time_rx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7789 goto nla_put_failure;
4ed20beb 7790 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
2dad624e
ND		 7791 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7792 survey->time_tx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7793 goto nla_put_failure;
052536ab 7794 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
2dad624e
ND		 7795 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7796 survey->time_scan, NL80211_SURVEY_INFO_PAD))
052536ab 7797 goto nla_put_failure;
61fa713c
HS		 7798
7799 nla_nest_end(msg, infoattr);
7800
053c095a
JB		 7801 genlmsg_end(msg, hdr);
7802 return 0;
61fa713c
HS		 7803
7804 nla_put_failure:
7805 genlmsg_cancel(msg, hdr);
7806 return -EMSGSIZE;
7807}
7808
11f78ac3 7809static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c 7810{
c90c39da 7811 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
61fa713c 7812 struct survey_info survey;
1b8ec87a 7813 struct cfg80211_registered_device *rdev;
97990a06
JB		 7814 struct wireless_dev *wdev;
7815 int survey_idx = cb->args[2];
61fa713c 7816 int res;
11f78ac3 7817 bool radio_stats;
61fa713c 7818
1b8ec87a 7819 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7820 if (res)
7821 return res;
61fa713c 7822
11f78ac3 7823 /* prepare_wdev_dump parsed the attributes */
c90c39da 7824 radio_stats = attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
11f78ac3 7825
97990a06
JB		 7826 if (!wdev->netdev) {
7827 res = -EINVAL;
7828 goto out_err;
7829 }
7830
1b8ec87a 7831 if (!rdev->ops->dump_survey) {
61fa713c
HS		 7832 res = -EOPNOTSUPP;
7833 goto out_err;
7834 }
7835
7836 while (1) {
1b8ec87a 7837 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 7838 if (res == -ENOENT)
7839 break;
7840 if (res)
7841 goto out_err;
7842
11f78ac3
JB		 7843 /* don't send disabled channels, but do send non-channel data */
7844 if (survey.channel &&
7845 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 7846 survey_idx++;
7847 continue;
7848 }
7849
61fa713c 7850 if (nl80211_send_survey(skb,
15e47304 7851 NETLINK_CB(cb->skb).portid,
61fa713c 7852 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 7853 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 7854 goto out;
7855 survey_idx++;
7856 }
7857
7858 out:
97990a06 7859 cb->args[2] = survey_idx;
61fa713c
HS		 7860 res = skb->len;
7861 out_err:
1b8ec87a 7862 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 7863 return res;
7864}
7865
b23aa676
SO		 7866static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7867{
7868 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7869 NL80211_WPA_VERSION_2));
7870}
7871
636a5d36
JM		 7872static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7873{
4c476991
JB		 7874 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7875 struct net_device *dev = info->user_ptr[1];
19957bb3 7876 struct ieee80211_channel *chan;
11b6b5a4
JM		 7877 const u8 *bssid, *ssid, *ie = NULL, *auth_data = NULL;
7878 int err, ssid_len, ie_len = 0, auth_data_len = 0;
19957bb3 7879 enum nl80211_auth_type auth_type;
fffd0934 7880 struct key_parse key;
d5cdfacb 7881 bool local_state_change;
636a5d36 7882
f4a11bb0
JB		 7883 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7884 return -EINVAL;
7885
7886 if (!info->attrs[NL80211_ATTR_MAC])
7887 return -EINVAL;
7888
1778092e
JM		 7889 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7890 return -EINVAL;
7891
19957bb3
JB		 7892 if (!info->attrs[NL80211_ATTR_SSID])
7893 return -EINVAL;
7894
7895 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7896 return -EINVAL;
7897
fffd0934
JB		 7898 err = nl80211_parse_key(info, &key);
7899 if (err)
7900 return err;
7901
7902 if (key.idx >= 0) {
e31b8213
JB		 7903 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7904 return -EINVAL;
fffd0934
JB		 7905 if (!key.p.key || !key.p.key_len)
7906 return -EINVAL;
7907 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7908 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7909 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7910 key.p.key_len != WLAN_KEY_LEN_WEP104))
7911 return -EINVAL;
b6b5555b 7912 if (key.idx > 3)
fffd0934
JB		 7913 return -EINVAL;
7914 } else {
7915 key.p.key_len = 0;
7916 key.p.key = NULL;
7917 }
7918
afea0b7a
JB		 7919 if (key.idx >= 0) {
7920 int i;
7921 bool ok = false;
7a087e74 7922
afea0b7a
JB		 7923 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7924 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7925 ok = true;
7926 break;
7927 }
7928 }
4c476991
JB		 7929 if (!ok)
7930 return -EINVAL;
afea0b7a
JB		 7931 }
7932
4c476991
JB		 7933 if (!rdev->ops->auth)
7934 return -EOPNOTSUPP;
636a5d36 7935
074ac8df 7936 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7937 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7938 return -EOPNOTSUPP;
eec60b03 7939
19957bb3 7940 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7941 chan = nl80211_get_valid_chan(&rdev->wiphy,
7942 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7943 if (!chan)
4c476991 7944 return -EINVAL;
636a5d36 7945
19957bb3
JB		 7946 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7947 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7948
7949 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7950 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7951 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7952 }
7953
19957bb3 7954 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7955 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7956 return -EINVAL;
636a5d36 7957
63181060
JM		 7958 if ((auth_type == NL80211_AUTHTYPE_SAE ||
7959 auth_type == NL80211_AUTHTYPE_FILS_SK ||
7960 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
7961 auth_type == NL80211_AUTHTYPE_FILS_PK) &&
11b6b5a4 7962 !info->attrs[NL80211_ATTR_AUTH_DATA])
e39e5b5e
JM		 7963 return -EINVAL;
7964
11b6b5a4 7965 if (info->attrs[NL80211_ATTR_AUTH_DATA]) {
63181060
JM		 7966 if (auth_type != NL80211_AUTHTYPE_SAE &&
7967 auth_type != NL80211_AUTHTYPE_FILS_SK &&
7968 auth_type != NL80211_AUTHTYPE_FILS_SK_PFS &&
7969 auth_type != NL80211_AUTHTYPE_FILS_PK)
e39e5b5e 7970 return -EINVAL;
11b6b5a4
JM		 7971 auth_data = nla_data(info->attrs[NL80211_ATTR_AUTH_DATA]);
7972 auth_data_len = nla_len(info->attrs[NL80211_ATTR_AUTH_DATA]);
e39e5b5e 7973 /* need to include at least Auth Transaction and Status Code */
11b6b5a4 7974 if (auth_data_len < 4)
e39e5b5e
JM		 7975 return -EINVAL;
7976 }
7977
d5cdfacb
JM		 7978 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7979
95de817b
JB		 7980 /*
7981 * Since we no longer track auth state, ignore
7982 * requests to only change local state.
7983 */
7984 if (local_state_change)
7985 return 0;
7986
91bf9b26
JB		 7987 wdev_lock(dev->ieee80211_ptr);
7988 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7989 ssid, ssid_len, ie, ie_len,
7990 key.p.key, key.p.key_len, key.idx,
11b6b5a4 7991 auth_data, auth_data_len);
91bf9b26
JB		 7992 wdev_unlock(dev->ieee80211_ptr);
7993 return err;
636a5d36
JM		 7994}
7995
c0692b8f
JB		 7996static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7997 struct genl_info *info,
3dc27d25
JB		 7998 struct cfg80211_crypto_settings *settings,
7999 int cipher_limit)
b23aa676 8000{
c0b2bbd8
JB		 8001 memset(settings, 0, sizeof(*settings));
8002
b23aa676
SO		 8003 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
8004
c0692b8f
JB		 8005 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
8006 u16 proto;
7a087e74 8007
c0692b8f
JB		 8008 proto = nla_get_u16(
8009 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
8010 settings->control_port_ethertype = cpu_to_be16(proto);
8011 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
8012 proto != ETH_P_PAE)
8013 return -EINVAL;
8014 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
8015 settings->control_port_no_encrypt = true;
8016 } else
8017 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
8018
b23aa676
SO		 8019 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
8020 void *data;
8021 int len, i;
8022
8023 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8024 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8025 settings->n_ciphers_pairwise = len / sizeof(u32);
8026
8027 if (len % sizeof(u32))
8028 return -EINVAL;
8029
3dc27d25 8030 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 8031 return -EINVAL;
8032
8033 memcpy(settings->ciphers_pairwise, data, len);
8034
8035 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 8036 if (!cfg80211_supported_cipher_suite(
8037 &rdev->wiphy,
b23aa676
SO		 8038 settings->ciphers_pairwise[i]))
8039 return -EINVAL;
8040 }
8041
8042 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
8043 settings->cipher_group =
8044 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 8045 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
8046 settings->cipher_group))
b23aa676
SO		 8047 return -EINVAL;
8048 }
8049
8050 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
8051 settings->wpa_versions =
8052 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
8053 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
8054 return -EINVAL;
8055 }
8056
8057 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
8058 void *data;
6d30240e 8059 int len;
b23aa676
SO		 8060
8061 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
8062 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
8063 settings->n_akm_suites = len / sizeof(u32);
8064
8065 if (len % sizeof(u32))
8066 return -EINVAL;
8067
1b9ca027
JM		 8068 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
8069 return -EINVAL;
8070
b23aa676 8071 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 8072 }
8073
8074 return 0;
8075}
8076
636a5d36
JM		 8077static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
8078{
4c476991
JB		 8079 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8080 struct net_device *dev = info->user_ptr[1];
f444de05 8081 struct ieee80211_channel *chan;
f62fab73
JB		 8082 struct cfg80211_assoc_request req = {};
8083 const u8 *bssid, *ssid;
8084 int err, ssid_len = 0;
636a5d36 8085
f4a11bb0
JB		 8086 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8087 return -EINVAL;
8088
8089 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 8090 !info->attrs[NL80211_ATTR_SSID] ||
8091 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 8092 return -EINVAL;
8093
4c476991
JB		 8094 if (!rdev->ops->assoc)
8095 return -EOPNOTSUPP;
636a5d36 8096
074ac8df 8097 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8098 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8099 return -EOPNOTSUPP;
eec60b03 8100
19957bb3 8101 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8102
664834de
JM		 8103 chan = nl80211_get_valid_chan(&rdev->wiphy,
8104 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8105 if (!chan)
4c476991 8106 return -EINVAL;
636a5d36 8107
19957bb3
JB		 8108 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8109 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 8110
8111 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 8112 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8113 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8114 }
8115
dc6382ce 8116 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 8117 enum nl80211_mfp mfp =
dc6382ce 8118 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 8119 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 8120 req.use_mfp = true;
4c476991
JB		 8121 else if (mfp != NL80211_MFP_NO)
8122 return -EINVAL;
dc6382ce
JM		 8123 }
8124
3e5d7649 8125 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 8126 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 8127
7e7c8926 8128 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 8129 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 8130
8131 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 8132 memcpy(&req.ht_capa_mask,
8133 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8134 sizeof(req.ht_capa_mask));
7e7c8926
BG		 8135
8136 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 8137 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 8138 return -EINVAL;
f62fab73
JB		 8139 memcpy(&req.ht_capa,
8140 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8141 sizeof(req.ht_capa));
7e7c8926
BG		 8142 }
8143
ee2aca34 8144 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 8145 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 8146
8147 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 8148 memcpy(&req.vht_capa_mask,
8149 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8150 sizeof(req.vht_capa_mask));
ee2aca34
JB		 8151
8152 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 8153 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 8154 return -EINVAL;
f62fab73
JB		 8155 memcpy(&req.vht_capa,
8156 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8157 sizeof(req.vht_capa));
ee2aca34
JB		 8158 }
8159
bab5ab7d 8160 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8161 if (!((rdev->wiphy.features &
8162 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8163 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8164 !wiphy_ext_feature_isset(&rdev->wiphy,
8165 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 8166 return -EINVAL;
8167 req.flags |= ASSOC_REQ_USE_RRM;
8168 }
8169
348bd456
JM		 8170 if (info->attrs[NL80211_ATTR_FILS_KEK]) {
8171 req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
8172 req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
8173 if (!info->attrs[NL80211_ATTR_FILS_NONCES])
8174 return -EINVAL;
8175 req.fils_nonces =
8176 nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
8177 }
8178
f62fab73 8179 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 8180 if (!err) {
8181 wdev_lock(dev->ieee80211_ptr);
bd2522b1 8182
f62fab73
JB		 8183 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
8184 ssid, ssid_len, &req);
bd2522b1
AZ		 8185
8186 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8187 dev->ieee80211_ptr->conn_owner_nlportid =
8188 info->snd_portid;
8189 memcpy(dev->ieee80211_ptr->disconnect_bssid,
8190 bssid, ETH_ALEN);
8191 }
8192
91bf9b26
JB		 8193 wdev_unlock(dev->ieee80211_ptr);
8194 }
636a5d36 8195
636a5d36
JM		 8196 return err;
8197}
8198
8199static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
8200{
4c476991
JB		 8201 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8202 struct net_device *dev = info->user_ptr[1];
19957bb3 8203 const u8 *ie = NULL, *bssid;
91bf9b26 8204 int ie_len = 0, err;
19957bb3 8205 u16 reason_code;
d5cdfacb 8206 bool local_state_change;
636a5d36 8207
f4a11bb0
JB		 8208 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8209 return -EINVAL;
8210
8211 if (!info->attrs[NL80211_ATTR_MAC])
8212 return -EINVAL;
8213
8214 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8215 return -EINVAL;
8216
4c476991
JB		 8217 if (!rdev->ops->deauth)
8218 return -EOPNOTSUPP;
636a5d36 8219
074ac8df 8220 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8221 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8222 return -EOPNOTSUPP;
eec60b03 8223
19957bb3 8224 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8225
19957bb3
JB		 8226 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8227 if (reason_code == 0) {
f4a11bb0 8228 /* Reason Code 0 is reserved */
4c476991 8229 return -EINVAL;
255e737e 8230 }
636a5d36
JM		 8231
8232 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8233 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8234 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8235 }
8236
d5cdfacb
JM		 8237 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8238
91bf9b26
JB		 8239 wdev_lock(dev->ieee80211_ptr);
8240 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
8241 local_state_change);
8242 wdev_unlock(dev->ieee80211_ptr);
8243 return err;
636a5d36
JM		 8244}
8245
8246static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
8247{
4c476991
JB		 8248 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8249 struct net_device *dev = info->user_ptr[1];
19957bb3 8250 const u8 *ie = NULL, *bssid;
91bf9b26 8251 int ie_len = 0, err;
19957bb3 8252 u16 reason_code;
d5cdfacb 8253 bool local_state_change;
636a5d36 8254
f4a11bb0
JB		 8255 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8256 return -EINVAL;
8257
8258 if (!info->attrs[NL80211_ATTR_MAC])
8259 return -EINVAL;
8260
8261 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8262 return -EINVAL;
8263
4c476991
JB		 8264 if (!rdev->ops->disassoc)
8265 return -EOPNOTSUPP;
636a5d36 8266
074ac8df 8267 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8268 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8269 return -EOPNOTSUPP;
eec60b03 8270
19957bb3 8271 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8272
19957bb3
JB		 8273 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8274 if (reason_code == 0) {
f4a11bb0 8275 /* Reason Code 0 is reserved */
4c476991 8276 return -EINVAL;
255e737e 8277 }
636a5d36
JM		 8278
8279 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8280 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8281 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8282 }
8283
d5cdfacb
JM		 8284 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8285
91bf9b26
JB		 8286 wdev_lock(dev->ieee80211_ptr);
8287 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
8288 local_state_change);
8289 wdev_unlock(dev->ieee80211_ptr);
8290 return err;
636a5d36
JM		 8291}
8292
dd5b4cc7
FF		 8293static bool
8294nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
57fbcce3 8295 int mcast_rate[NUM_NL80211_BANDS],
dd5b4cc7
FF		 8296 int rateval)
8297{
8298 struct wiphy *wiphy = &rdev->wiphy;
8299 bool found = false;
8300 int band, i;
8301
57fbcce3 8302 for (band = 0; band < NUM_NL80211_BANDS; band++) {
dd5b4cc7
FF		 8303 struct ieee80211_supported_band *sband;
8304
8305 sband = wiphy->bands[band];
8306 if (!sband)
8307 continue;
8308
8309 for (i = 0; i < sband->n_bitrates; i++) {
8310 if (sband->bitrates[i].bitrate == rateval) {
8311 mcast_rate[band] = i + 1;
8312 found = true;
8313 break;
8314 }
8315 }
8316 }
8317
8318 return found;
8319}
8320
04a773ad
JB		 8321static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
8322{
4c476991
JB		 8323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8324 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 8325 struct cfg80211_ibss_params ibss;
8326 struct wiphy *wiphy;
fffd0934 8327 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 8328 int err;
8329
8e30bc55
JB		 8330 memset(&ibss, 0, sizeof(ibss));
8331
04a773ad
JB		 8332 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8333 return -EINVAL;
8334
683b6d3b 8335 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 8336 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8337 return -EINVAL;
8338
8e30bc55
JB		 8339 ibss.beacon_interval = 100;
8340
12d20fc9 8341 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8e30bc55
JB		 8342 ibss.beacon_interval =
8343 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9 8344
0c317a02
PK		 8345 err = cfg80211_validate_beacon_int(rdev, NL80211_IFTYPE_ADHOC,
8346 ibss.beacon_interval);
12d20fc9
PK		 8347 if (err)
8348 return err;
8e30bc55 8349
4c476991
JB		 8350 if (!rdev->ops->join_ibss)
8351 return -EOPNOTSUPP;
04a773ad 8352
4c476991
JB		 8353 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8354 return -EOPNOTSUPP;
04a773ad 8355
79c97e97 8356 wiphy = &rdev->wiphy;
04a773ad 8357
39193498 8358 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 8359 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 8360
8361 if (!is_valid_ether_addr(ibss.bssid))
8362 return -EINVAL;
8363 }
04a773ad
JB		 8364 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8365 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8366
8367 if (info->attrs[NL80211_ATTR_IE]) {
8368 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8369 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8370 }
8371
683b6d3b
JB		 8372 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
8373 if (err)
8374 return err;
04a773ad 8375
174e0cd2
IP		 8376 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
8377 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 8378 return -EINVAL;
8379
2f301ab2 8380 switch (ibss.chandef.width) {
bf372645
SW		 8381 case NL80211_CHAN_WIDTH_5:
8382 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 8383 case NL80211_CHAN_WIDTH_20_NOHT:
8384 break;
8385 case NL80211_CHAN_WIDTH_20:
8386 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 8387 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8388 return -EINVAL;
8389 break;
8390 case NL80211_CHAN_WIDTH_80:
8391 case NL80211_CHAN_WIDTH_80P80:
8392 case NL80211_CHAN_WIDTH_160:
8393 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8394 return -EINVAL;
8395 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8396 NL80211_EXT_FEATURE_VHT_IBSS))
8397 return -EINVAL;
8398 break;
2f301ab2 8399 default:
c04d6150 8400 return -EINVAL;
2f301ab2 8401 }
db9c64cf 8402
04a773ad 8403 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 8404 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
8405
fbd2c8dc
TP		 8406 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8407 u8 *rates =
8408 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8409 int n_rates =
8410 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8411 struct ieee80211_supported_band *sband =
683b6d3b 8412 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 8413
34850ab2
JB		 8414 err = ieee80211_get_ratemask(sband, rates, n_rates,
8415 &ibss.basic_rates);
8416 if (err)
8417 return err;
fbd2c8dc 8418 }
dd5b4cc7 8419
803768f5
SW		 8420 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8421 memcpy(&ibss.ht_capa_mask,
8422 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8423 sizeof(ibss.ht_capa_mask));
8424
8425 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8426 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8427 return -EINVAL;
8428 memcpy(&ibss.ht_capa,
8429 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8430 sizeof(ibss.ht_capa));
8431 }
8432
dd5b4cc7
FF		 8433 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8434 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
8435 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8436 return -EINVAL;
fbd2c8dc 8437
4c476991 8438 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 8439 bool no_ht = false;
8440
4c476991 8441 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 8442 info->attrs[NL80211_ATTR_KEYS],
8443 &no_ht);
4c476991
JB		 8444 if (IS_ERR(connkeys))
8445 return PTR_ERR(connkeys);
de7044ee 8446
3d9d1d66
JB		 8447 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
8448 no_ht) {
5e950a78 8449 kzfree(connkeys);
de7044ee
SM		 8450 return -EINVAL;
8451 }
4c476991 8452 }
04a773ad 8453
267335d6
AQ		 8454 ibss.control_port =
8455 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
8456
5336fa88
SW		 8457 ibss.userspace_handles_dfs =
8458 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
8459
4c476991 8460 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 8461 if (err)
b47f610b 8462 kzfree(connkeys);
04a773ad
JB		 8463 return err;
8464}
8465
8466static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
8467{
4c476991
JB		 8468 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8469 struct net_device *dev = info->user_ptr[1];
04a773ad 8470
4c476991
JB		 8471 if (!rdev->ops->leave_ibss)
8472 return -EOPNOTSUPP;
04a773ad 8473
4c476991
JB		 8474 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8475 return -EOPNOTSUPP;
04a773ad 8476
4c476991 8477 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 8478}
8479
f4e583c8
AQ		 8480static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
8481{
8482 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8483 struct net_device *dev = info->user_ptr[1];
57fbcce3 8484 int mcast_rate[NUM_NL80211_BANDS];
f4e583c8
AQ		 8485 u32 nla_rate;
8486 int err;
8487
8488 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 8489 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
8490 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 8491 return -EOPNOTSUPP;
8492
8493 if (!rdev->ops->set_mcast_rate)
8494 return -EOPNOTSUPP;
8495
8496 memset(mcast_rate, 0, sizeof(mcast_rate));
8497
8498 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
8499 return -EINVAL;
8500
8501 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
8502 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
8503 return -EINVAL;
8504
a1056b1b 8505 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 8506
8507 return err;
8508}
8509
ad7e718c
JB		 8510static struct sk_buff *
8511__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 8512 struct wireless_dev *wdev, int approxlen,
8513 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 8514 enum nl80211_attrs attr,
8515 const struct nl80211_vendor_cmd_info *info,
8516 gfp_t gfp)
ad7e718c
JB		 8517{
8518 struct sk_buff *skb;
8519 void *hdr;
8520 struct nlattr *data;
8521
8522 skb = nlmsg_new(approxlen + 100, gfp);
8523 if (!skb)
8524 return NULL;
8525
8526 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
8527 if (!hdr) {
8528 kfree_skb(skb);
8529 return NULL;
8530 }
8531
8532 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
8533 goto nla_put_failure;
567ffc35
JB		 8534
8535 if (info) {
8536 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
8537 info->vendor_id))
8538 goto nla_put_failure;
8539 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
8540 info->subcmd))
8541 goto nla_put_failure;
8542 }
8543
6c09e791 8544 if (wdev) {
2dad624e
ND		 8545 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
8546 wdev_id(wdev), NL80211_ATTR_PAD))
6c09e791
AK		 8547 goto nla_put_failure;
8548 if (wdev->netdev &&
8549 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
8550 wdev->netdev->ifindex))
8551 goto nla_put_failure;
8552 }
8553
ad7e718c 8554 data = nla_nest_start(skb, attr);
76e1fb4b
JB		 8555 if (!data)
8556 goto nla_put_failure;
ad7e718c
JB		 8557
8558 ((void **)skb->cb)[0] = rdev;
8559 ((void **)skb->cb)[1] = hdr;
8560 ((void **)skb->cb)[2] = data;
8561
8562 return skb;
8563
8564 nla_put_failure:
8565 kfree_skb(skb);
8566 return NULL;
8567}
f4e583c8 8568
e03ad6ea 8569struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 8570 struct wireless_dev *wdev,
e03ad6ea
JB		 8571 enum nl80211_commands cmd,
8572 enum nl80211_attrs attr,
8573 int vendor_event_idx,
8574 int approxlen, gfp_t gfp)
8575{
f26cbf40 8576 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 8577 const struct nl80211_vendor_cmd_info *info;
8578
8579 switch (cmd) {
8580 case NL80211_CMD_TESTMODE:
8581 if (WARN_ON(vendor_event_idx != -1))
8582 return NULL;
8583 info = NULL;
8584 break;
8585 case NL80211_CMD_VENDOR:
8586 if (WARN_ON(vendor_event_idx < 0 ||
8587 vendor_event_idx >= wiphy->n_vendor_events))
8588 return NULL;
8589 info = &wiphy->vendor_events[vendor_event_idx];
8590 break;
8591 default:
8592 WARN_ON(1);
8593 return NULL;
8594 }
8595
6c09e791 8596 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 8597 cmd, attr, info, gfp);
8598}
8599EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8600
8601void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8602{
8603 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8604 void *hdr = ((void **)skb->cb)[1];
8605 struct nlattr *data = ((void **)skb->cb)[2];
8606 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8607
bd8c78e7
JB		 8608 /* clear CB data for netlink core to own from now on */
8609 memset(skb->cb, 0, sizeof(skb->cb));
8610
e03ad6ea
JB		 8611 nla_nest_end(skb, data);
8612 genlmsg_end(skb, hdr);
8613
8614 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8615 mcgrp = NL80211_MCGRP_VENDOR;
8616
8617 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8618 mcgrp, gfp);
8619}
8620EXPORT_SYMBOL(__cfg80211_send_event_skb);
8621
aff89a9b 8622#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 8623static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8624{
4c476991 8625 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 8626 struct wireless_dev *wdev =
8627 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 8628 int err;
8629
fc73f11f
DS		 8630 if (!rdev->ops->testmode_cmd)
8631 return -EOPNOTSUPP;
8632
8633 if (IS_ERR(wdev)) {
8634 err = PTR_ERR(wdev);
8635 if (err != -EINVAL)
8636 return err;
8637 wdev = NULL;
8638 } else if (wdev->wiphy != &rdev->wiphy) {
8639 return -EINVAL;
8640 }
8641
aff89a9b
JB		 8642 if (!info->attrs[NL80211_ATTR_TESTDATA])
8643 return -EINVAL;
8644
ad7e718c 8645 rdev->cur_cmd_info = info;
fc73f11f 8646 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 8647 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8648 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 8649 rdev->cur_cmd_info = NULL;
aff89a9b 8650
aff89a9b
JB		 8651 return err;
8652}
8653
71063f0e
WYG		 8654static int nl80211_testmode_dump(struct sk_buff *skb,
8655 struct netlink_callback *cb)
8656{
00918d33 8657 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 8658 int err;
8659 long phy_idx;
8660 void *data = NULL;
8661 int data_len = 0;
8662
5fe231e8
JB		 8663 rtnl_lock();
8664
71063f0e
WYG		 8665 if (cb->args[0]) {
8666 /*
8667 * 0 is a valid index, but not valid for args[0],
8668 * so we need to offset by 1.
8669 */
8670 phy_idx = cb->args[0] - 1;
a4956dca
LC		 8671
8672 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8673 if (!rdev) {
8674 err = -ENOENT;
8675 goto out_err;
8676 }
71063f0e 8677 } else {
c90c39da
JB		 8678 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
8679
71063f0e 8680 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
c90c39da 8681 attrbuf, nl80211_fam.maxattr, nl80211_policy);
71063f0e 8682 if (err)
5fe231e8 8683 goto out_err;
00918d33 8684
c90c39da 8685 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
2bd7e35d 8686 if (IS_ERR(rdev)) {
5fe231e8
JB		 8687 err = PTR_ERR(rdev);
8688 goto out_err;
00918d33 8689 }
2bd7e35d 8690 phy_idx = rdev->wiphy_idx;
2bd7e35d 8691
c90c39da
JB		 8692 if (attrbuf[NL80211_ATTR_TESTDATA])
8693 cb->args[1] = (long)attrbuf[NL80211_ATTR_TESTDATA];
71063f0e
WYG		 8694 }
8695
8696 if (cb->args[1]) {
8697 data = nla_data((void *)cb->args[1]);
8698 data_len = nla_len((void *)cb->args[1]);
8699 }
8700
00918d33 8701 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 8702 err = -EOPNOTSUPP;
8703 goto out_err;
8704 }
8705
8706 while (1) {
15e47304 8707 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 8708 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8709 NL80211_CMD_TESTMODE);
8710 struct nlattr *tmdata;
8711
cb35fba3
DC		 8712 if (!hdr)
8713 break;
8714
9360ffd1 8715 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 8716 genlmsg_cancel(skb, hdr);
8717 break;
8718 }
8719
8720 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8721 if (!tmdata) {
8722 genlmsg_cancel(skb, hdr);
8723 break;
8724 }
e35e4d28 8725 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 8726 nla_nest_end(skb, tmdata);
8727
8728 if (err == -ENOBUFS || err == -ENOENT) {
8729 genlmsg_cancel(skb, hdr);
8730 break;
8731 } else if (err) {
8732 genlmsg_cancel(skb, hdr);
8733 goto out_err;
8734 }
8735
8736 genlmsg_end(skb, hdr);
8737 }
8738
8739 err = skb->len;
8740 /* see above */
8741 cb->args[0] = phy_idx + 1;
8742 out_err:
5fe231e8 8743 rtnl_unlock();
71063f0e
WYG		 8744 return err;
8745}
aff89a9b
JB		 8746#endif
8747
b23aa676
SO		 8748static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8749{
4c476991
JB		 8750 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8751 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 8752 struct cfg80211_connect_params connect;
8753 struct wiphy *wiphy;
fffd0934 8754 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 8755 int err;
8756
8757 memset(&connect, 0, sizeof(connect));
8758
8759 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8760 return -EINVAL;
8761
8762 if (!info->attrs[NL80211_ATTR_SSID] ||
8763 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8764 return -EINVAL;
8765
8766 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8767 connect.auth_type =
8768 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8769 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8770 NL80211_CMD_CONNECT))
b23aa676
SO		 8771 return -EINVAL;
8772 } else
8773 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8774
8775 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8776
c0692b8f 8777 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8778 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8779 if (err)
8780 return err;
b23aa676 8781
074ac8df 8782 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8783 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8784 return -EOPNOTSUPP;
b23aa676 8785
79c97e97 8786 wiphy = &rdev->wiphy;
b23aa676 8787
4486ea98
BS		 8788 connect.bg_scan_period = -1;
8789 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8790 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8791 connect.bg_scan_period =
8792 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8793 }
8794
b23aa676
SO		 8795 if (info->attrs[NL80211_ATTR_MAC])
8796 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8797 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8798 connect.bssid_hint =
8799 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8800 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8801 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8802
8803 if (info->attrs[NL80211_ATTR_IE]) {
8804 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8805 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8806 }
8807
cee00a95
JM		 8808 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8809 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8810 if (connect.mfp != NL80211_MFP_REQUIRED &&
8811 connect.mfp != NL80211_MFP_NO)
8812 return -EINVAL;
8813 } else {
8814 connect.mfp = NL80211_MFP_NO;
8815 }
8816
ba6fbacf
JM		 8817 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8818 connect.prev_bssid =
8819 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8820
b23aa676 8821 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 8822 connect.channel = nl80211_get_valid_chan(
8823 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8824 if (!connect.channel)
1df4a510
JM		 8825 return -EINVAL;
8826 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 8827 connect.channel_hint = nl80211_get_valid_chan(
8828 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8829 if (!connect.channel_hint)
4c476991 8830 return -EINVAL;
b23aa676
SO		 8831 }
8832
fffd0934
JB		 8833 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8834 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 8835 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 8836 if (IS_ERR(connkeys))
8837 return PTR_ERR(connkeys);
fffd0934
JB		 8838 }
8839
7e7c8926
BG		 8840 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8841 connect.flags |= ASSOC_REQ_DISABLE_HT;
8842
8843 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8844 memcpy(&connect.ht_capa_mask,
8845 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8846 sizeof(connect.ht_capa_mask));
8847
8848 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 8849 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 8850 kzfree(connkeys);
7e7c8926 8851 return -EINVAL;
b4e4f47e 8852 }
7e7c8926
BG		 8853 memcpy(&connect.ht_capa,
8854 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8855 sizeof(connect.ht_capa));
8856 }
8857
ee2aca34
JB		 8858 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8859 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8860
8861 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8862 memcpy(&connect.vht_capa_mask,
8863 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8864 sizeof(connect.vht_capa_mask));
8865
8866 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8867 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 8868 kzfree(connkeys);
ee2aca34
JB		 8869 return -EINVAL;
8870 }
8871 memcpy(&connect.vht_capa,
8872 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8873 sizeof(connect.vht_capa));
8874 }
8875
bab5ab7d 8876 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8877 if (!((rdev->wiphy.features &
8878 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8879 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8880 !wiphy_ext_feature_isset(&rdev->wiphy,
8881 NL80211_EXT_FEATURE_RRM)) {
707554b4 8882 kzfree(connkeys);
bab5ab7d 8883 return -EINVAL;
707554b4 8884 }
bab5ab7d
AK		 8885 connect.flags |= ASSOC_REQ_USE_RRM;
8886 }
8887
34d50519 8888 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 8889 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
34d50519
LD		 8890 kzfree(connkeys);
8891 return -EOPNOTSUPP;
8892 }
8893
38de03d2
AS		 8894 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8895 /* bss selection makes no sense if bssid is set */
8896 if (connect.bssid) {
8897 kzfree(connkeys);
8898 return -EINVAL;
8899 }
8900
8901 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8902 wiphy, &connect.bss_select);
8903 if (err) {
8904 kzfree(connkeys);
8905 return err;
8906 }
8907 }
8908
83739b03 8909 wdev_lock(dev->ieee80211_ptr);
bd2522b1 8910
4ce2bd9c
JM		 8911 err = cfg80211_connect(rdev, dev, &connect, connkeys,
8912 connect.prev_bssid);
fffd0934 8913 if (err)
b47f610b 8914 kzfree(connkeys);
bd2522b1
AZ		 8915
8916 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8917 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
8918 if (connect.bssid)
8919 memcpy(dev->ieee80211_ptr->disconnect_bssid,
8920 connect.bssid, ETH_ALEN);
8921 else
8922 memset(dev->ieee80211_ptr->disconnect_bssid,
8923 0, ETH_ALEN);
8924 }
8925
8926 wdev_unlock(dev->ieee80211_ptr);
8927
b23aa676
SO		 8928 return err;
8929}
8930
088e8df8 8931static int nl80211_update_connect_params(struct sk_buff *skb,
8932 struct genl_info *info)
8933{
8934 struct cfg80211_connect_params connect = {};
8935 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8936 struct net_device *dev = info->user_ptr[1];
8937 struct wireless_dev *wdev = dev->ieee80211_ptr;
8938 u32 changed = 0;
8939 int ret;
8940
8941 if (!rdev->ops->update_connect_params)
8942 return -EOPNOTSUPP;
8943
8944 if (info->attrs[NL80211_ATTR_IE]) {
8945 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8946 return -EINVAL;
8947 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8948 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8949 changed |= UPDATE_ASSOC_IES;
8950 }
8951
8952 wdev_lock(dev->ieee80211_ptr);
8953 if (!wdev->current_bss)
8954 ret = -ENOLINK;
8955 else
8956 ret = rdev_update_connect_params(rdev, dev, &connect, changed);
8957 wdev_unlock(dev->ieee80211_ptr);
8958
8959 return ret;
8960}
8961
b23aa676
SO		 8962static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8963{
4c476991
JB		 8964 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8965 struct net_device *dev = info->user_ptr[1];
b23aa676 8966 u16 reason;
83739b03 8967 int ret;
b23aa676
SO		 8968
8969 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8970 reason = WLAN_REASON_DEAUTH_LEAVING;
8971 else
8972 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8973
8974 if (reason == 0)
8975 return -EINVAL;
8976
074ac8df 8977 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8978 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8979 return -EOPNOTSUPP;
b23aa676 8980
83739b03
JB		 8981 wdev_lock(dev->ieee80211_ptr);
8982 ret = cfg80211_disconnect(rdev, dev, reason, true);
8983 wdev_unlock(dev->ieee80211_ptr);
8984 return ret;
b23aa676
SO		 8985}
8986
463d0183
JB		 8987static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8988{
4c476991 8989 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 8990 struct net *net;
8991 int err;
463d0183 8992
4b681c82
VK		 8993 if (info->attrs[NL80211_ATTR_PID]) {
8994 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8995
8996 net = get_net_ns_by_pid(pid);
8997 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8998 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 8999
4b681c82
VK		 9000 net = get_net_ns_by_fd(fd);
9001 } else {
9002 return -EINVAL;
9003 }
463d0183 9004
4c476991
JB		 9005 if (IS_ERR(net))
9006 return PTR_ERR(net);
463d0183
JB		 9007
9008 err = 0;
9009
9010 /* check if anything to do */
4c476991
JB		 9011 if (!net_eq(wiphy_net(&rdev->wiphy), net))
9012 err = cfg80211_switch_netns(rdev, net);
463d0183 9013
463d0183 9014 put_net(net);
463d0183
JB		 9015 return err;
9016}
9017
67fbb16b
SO		 9018static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
9019{
4c476991 9020 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 9021 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
9022 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 9023 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 9024 struct cfg80211_pmksa pmksa;
9025
9026 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
9027
9028 if (!info->attrs[NL80211_ATTR_MAC])
9029 return -EINVAL;
9030
9031 if (!info->attrs[NL80211_ATTR_PMKID])
9032 return -EINVAL;
9033
67fbb16b
SO		 9034 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
9035 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
9036
074ac8df 9037 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9038 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9039 return -EOPNOTSUPP;
67fbb16b
SO		 9040
9041 switch (info->genlhdr->cmd) {
9042 case NL80211_CMD_SET_PMKSA:
9043 rdev_ops = rdev->ops->set_pmksa;
9044 break;
9045 case NL80211_CMD_DEL_PMKSA:
9046 rdev_ops = rdev->ops->del_pmksa;
9047 break;
9048 default:
9049 WARN_ON(1);
9050 break;
9051 }
9052
4c476991
JB		 9053 if (!rdev_ops)
9054 return -EOPNOTSUPP;
67fbb16b 9055
4c476991 9056 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 9057}
9058
9059static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
9060{
4c476991
JB		 9061 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9062 struct net_device *dev = info->user_ptr[1];
67fbb16b 9063
074ac8df 9064 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9065 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9066 return -EOPNOTSUPP;
67fbb16b 9067
4c476991
JB		 9068 if (!rdev->ops->flush_pmksa)
9069 return -EOPNOTSUPP;
67fbb16b 9070
e35e4d28 9071 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 9072}
9073
109086ce
AN		 9074static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
9075{
9076 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9077 struct net_device *dev = info->user_ptr[1];
9078 u8 action_code, dialog_token;
df942e7b 9079 u32 peer_capability = 0;
109086ce
AN		 9080 u16 status_code;
9081 u8 *peer;
31fa97c5 9082 bool initiator;
109086ce
AN		 9083
9084 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9085 !rdev->ops->tdls_mgmt)
9086 return -EOPNOTSUPP;
9087
9088 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
9089 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
9090 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
9091 !info->attrs[NL80211_ATTR_IE] ||
9092 !info->attrs[NL80211_ATTR_MAC])
9093 return -EINVAL;
9094
9095 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9096 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
9097 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
9098 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 9099 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 9100 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
9101 peer_capability =
9102 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 9103
e35e4d28 9104 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 9105 dialog_token, status_code, peer_capability,
31fa97c5 9106 initiator,
e35e4d28
HG		 9107 nla_data(info->attrs[NL80211_ATTR_IE]),
9108 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 9109}
9110
9111static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
9112{
9113 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9114 struct net_device *dev = info->user_ptr[1];
9115 enum nl80211_tdls_operation operation;
9116 u8 *peer;
9117
9118 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9119 !rdev->ops->tdls_oper)
9120 return -EOPNOTSUPP;
9121
9122 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
9123 !info->attrs[NL80211_ATTR_MAC])
9124 return -EINVAL;
9125
9126 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
9127 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9128
e35e4d28 9129 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 9130}
9131
9588bbd5
JM		 9132static int nl80211_remain_on_channel(struct sk_buff *skb,
9133 struct genl_info *info)
9134{
4c476991 9135 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9136 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 9137 struct cfg80211_chan_def chandef;
34373d12 9138 const struct cfg80211_chan_def *compat_chandef;
9588bbd5
JM		 9139 struct sk_buff *msg;
9140 void *hdr;
9141 u64 cookie;
683b6d3b 9142 u32 duration;
9588bbd5
JM		 9143 int err;
9144
9145 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
9146 !info->attrs[NL80211_ATTR_DURATION])
9147 return -EINVAL;
9148
9149 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9150
ebf348fc
JB		 9151 if (!rdev->ops->remain_on_channel ||
9152 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
9153 return -EOPNOTSUPP;
9154
9588bbd5 9155 /*
ebf348fc
JB		 9156 * We should be on that channel for at least a minimum amount of
9157 * time (10ms) but no longer than the driver supports.
9588bbd5 9158 */
ebf348fc 9159 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 9160 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 9161 return -EINVAL;
9162
683b6d3b
JB		 9163 err = nl80211_parse_chandef(rdev, info, &chandef);
9164 if (err)
9165 return err;
9588bbd5 9166
34373d12
VT		 9167 wdev_lock(wdev);
9168 if (!cfg80211_off_channel_oper_allowed(wdev) &&
9169 !cfg80211_chandef_identical(&wdev->chandef, &chandef)) {
9170 compat_chandef = cfg80211_chandef_compatible(&wdev->chandef,
9171 &chandef);
9172 if (compat_chandef != &chandef) {
9173 wdev_unlock(wdev);
9174 return -EBUSY;
9175 }
9176 }
9177 wdev_unlock(wdev);
9178
9588bbd5 9179 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9180 if (!msg)
9181 return -ENOMEM;
9588bbd5 9182
15e47304 9183 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 9184 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 9185 if (!hdr) {
9186 err = -ENOBUFS;
9588bbd5
JM		 9187 goto free_msg;
9188 }
9189
683b6d3b
JB		 9190 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
9191 duration, &cookie);
9588bbd5
JM		 9192
9193 if (err)
9194 goto free_msg;
9195
2dad624e
ND		 9196 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9197 NL80211_ATTR_PAD))
9360ffd1 9198 goto nla_put_failure;
9588bbd5
JM		 9199
9200 genlmsg_end(msg, hdr);
4c476991
JB		 9201
9202 return genlmsg_reply(msg, info);
9588bbd5
JM		 9203
9204 nla_put_failure:
9205 err = -ENOBUFS;
9206 free_msg:
9207 nlmsg_free(msg);
9588bbd5
JM		 9208 return err;
9209}
9210
9211static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
9212 struct genl_info *info)
9213{
4c476991 9214 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9215 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 9216 u64 cookie;
9588bbd5
JM		 9217
9218 if (!info->attrs[NL80211_ATTR_COOKIE])
9219 return -EINVAL;
9220
4c476991
JB		 9221 if (!rdev->ops->cancel_remain_on_channel)
9222 return -EOPNOTSUPP;
9588bbd5 9223
9588bbd5
JM		 9224 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9225
e35e4d28 9226 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 9227}
9228
13ae75b1
JM		 9229static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
9230 struct genl_info *info)
9231{
13ae75b1 9232 struct cfg80211_bitrate_mask mask;
a7c7fbff 9233 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9234 struct net_device *dev = info->user_ptr[1];
a7c7fbff 9235 int err;
13ae75b1 9236
4c476991
JB		 9237 if (!rdev->ops->set_bitrate_mask)
9238 return -EOPNOTSUPP;
13ae75b1 9239
a7c7fbff
PK		 9240 err = nl80211_parse_tx_bitrate_mask(info, &mask);
9241 if (err)
9242 return err;
13ae75b1 9243
e35e4d28 9244 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 9245}
9246
2e161f78 9247static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9248{
4c476991 9249 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9250 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 9251 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 9252
9253 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
9254 return -EINVAL;
9255
2e161f78
JB		 9256 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
9257 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 9258
71bbc994
JB		 9259 switch (wdev->iftype) {
9260 case NL80211_IFTYPE_STATION:
9261 case NL80211_IFTYPE_ADHOC:
9262 case NL80211_IFTYPE_P2P_CLIENT:
9263 case NL80211_IFTYPE_AP:
9264 case NL80211_IFTYPE_AP_VLAN:
9265 case NL80211_IFTYPE_MESH_POINT:
9266 case NL80211_IFTYPE_P2P_GO:
98104fde 9267 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9268 break;
cb3b7d87 9269 case NL80211_IFTYPE_NAN:
71bbc994 9270 default:
4c476991 9271 return -EOPNOTSUPP;
71bbc994 9272 }
026331c4
JM		 9273
9274 /* not much point in registering if we can't reply */
4c476991
JB		 9275 if (!rdev->ops->mgmt_tx)
9276 return -EOPNOTSUPP;
026331c4 9277
15e47304 9278 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 9279 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
9280 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 9281}
9282
2e161f78 9283static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9284{
4c476991 9285 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9286 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 9287 struct cfg80211_chan_def chandef;
026331c4 9288 int err;
d64d373f 9289 void *hdr = NULL;
026331c4 9290 u64 cookie;
e247bd90 9291 struct sk_buff *msg = NULL;
b176e629
AO		 9292 struct cfg80211_mgmt_tx_params params = {
9293 .dont_wait_for_ack =
9294 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
9295 };
026331c4 9296
683b6d3b 9297 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 9298 return -EINVAL;
9299
4c476991
JB		 9300 if (!rdev->ops->mgmt_tx)
9301 return -EOPNOTSUPP;
026331c4 9302
71bbc994 9303 switch (wdev->iftype) {
ea141b75
AQ		 9304 case NL80211_IFTYPE_P2P_DEVICE:
9305 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
9306 return -EINVAL;
71bbc994
JB		 9307 case NL80211_IFTYPE_STATION:
9308 case NL80211_IFTYPE_ADHOC:
9309 case NL80211_IFTYPE_P2P_CLIENT:
9310 case NL80211_IFTYPE_AP:
9311 case NL80211_IFTYPE_AP_VLAN:
9312 case NL80211_IFTYPE_MESH_POINT:
9313 case NL80211_IFTYPE_P2P_GO:
9314 break;
cb3b7d87 9315 case NL80211_IFTYPE_NAN:
71bbc994 9316 default:
4c476991 9317 return -EOPNOTSUPP;
71bbc994 9318 }
026331c4 9319
f7ca38df 9320 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 9321 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 9322 return -EINVAL;
b176e629 9323 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 9324
9325 /*
9326 * We should wait on the channel for at least a minimum amount
9327 * of time (10ms) but no longer than the driver supports.
9328 */
b176e629
AO		 9329 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9330 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc 9331 return -EINVAL;
f7ca38df
JB		 9332 }
9333
b176e629 9334 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 9335
b176e629 9336 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 9337 return -EINVAL;
9338
b176e629 9339 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 9340
ea141b75
AQ		 9341 /* get the channel if any has been specified, otherwise pass NULL to
9342 * the driver. The latter will use the current one
9343 */
9344 chandef.chan = NULL;
9345 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9346 err = nl80211_parse_chandef(rdev, info, &chandef);
9347 if (err)
9348 return err;
9349 }
9350
b176e629 9351 if (!chandef.chan && params.offchan)
ea141b75 9352 return -EINVAL;
026331c4 9353
34373d12
VT		 9354 wdev_lock(wdev);
9355 if (params.offchan && !cfg80211_off_channel_oper_allowed(wdev)) {
9356 wdev_unlock(wdev);
9357 return -EBUSY;
9358 }
9359 wdev_unlock(wdev);
9360
34d22ce2
AO		 9361 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
9362 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
9363
9364 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
9365 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9366 int i;
9367
9368 if (len % sizeof(u16))
9369 return -EINVAL;
9370
9371 params.n_csa_offsets = len / sizeof(u16);
9372 params.csa_offsets =
9373 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9374
9375 /* check that all the offsets fit the frame */
9376 for (i = 0; i < params.n_csa_offsets; i++) {
9377 if (params.csa_offsets[i] >= params.len)
9378 return -EINVAL;
9379 }
9380 }
9381
b176e629 9382 if (!params.dont_wait_for_ack) {
e247bd90
JB		 9383 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9384 if (!msg)
9385 return -ENOMEM;
026331c4 9386
15e47304 9387 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 9388 NL80211_CMD_FRAME);
cb35fba3
DC		 9389 if (!hdr) {
9390 err = -ENOBUFS;
e247bd90
JB		 9391 goto free_msg;
9392 }
026331c4 9393 }
e247bd90 9394
b176e629
AO		 9395 params.chan = chandef.chan;
9396 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 9397 if (err)
9398 goto free_msg;
9399
e247bd90 9400 if (msg) {
2dad624e
ND		 9401 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9402 NL80211_ATTR_PAD))
9360ffd1 9403 goto nla_put_failure;
026331c4 9404
e247bd90
JB		 9405 genlmsg_end(msg, hdr);
9406 return genlmsg_reply(msg, info);
9407 }
9408
9409 return 0;
026331c4
JM		 9410
9411 nla_put_failure:
9412 err = -ENOBUFS;
9413 free_msg:
9414 nlmsg_free(msg);
026331c4
JM		 9415 return err;
9416}
9417
f7ca38df
JB		 9418static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
9419{
9420 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9421 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 9422 u64 cookie;
9423
9424 if (!info->attrs[NL80211_ATTR_COOKIE])
9425 return -EINVAL;
9426
9427 if (!rdev->ops->mgmt_tx_cancel_wait)
9428 return -EOPNOTSUPP;
9429
71bbc994
JB		 9430 switch (wdev->iftype) {
9431 case NL80211_IFTYPE_STATION:
9432 case NL80211_IFTYPE_ADHOC:
9433 case NL80211_IFTYPE_P2P_CLIENT:
9434 case NL80211_IFTYPE_AP:
9435 case NL80211_IFTYPE_AP_VLAN:
9436 case NL80211_IFTYPE_P2P_GO:
98104fde 9437 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9438 break;
cb3b7d87 9439 case NL80211_IFTYPE_NAN:
71bbc994 9440 default:
f7ca38df 9441 return -EOPNOTSUPP;
71bbc994 9442 }
f7ca38df
JB		 9443
9444 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9445
e35e4d28 9446 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 9447}
9448
ffb9eb3d
KV		 9449static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9450{
4c476991 9451 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 9452 struct wireless_dev *wdev;
4c476991 9453 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9454 u8 ps_state;
9455 bool state;
9456 int err;
9457
4c476991
JB		 9458 if (!info->attrs[NL80211_ATTR_PS_STATE])
9459 return -EINVAL;
ffb9eb3d
KV		 9460
9461 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9462
4c476991
JB		 9463 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9464 return -EINVAL;
ffb9eb3d
KV		 9465
9466 wdev = dev->ieee80211_ptr;
9467
4c476991
JB		 9468 if (!rdev->ops->set_power_mgmt)
9469 return -EOPNOTSUPP;
ffb9eb3d
KV		 9470
9471 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9472
9473 if (state == wdev->ps)
4c476991 9474 return 0;
ffb9eb3d 9475
e35e4d28 9476 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 9477 if (!err)
9478 wdev->ps = state;
ffb9eb3d
KV		 9479 return err;
9480}
9481
9482static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9483{
4c476991 9484 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 9485 enum nl80211_ps_state ps_state;
9486 struct wireless_dev *wdev;
4c476991 9487 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9488 struct sk_buff *msg;
9489 void *hdr;
9490 int err;
9491
ffb9eb3d
KV		 9492 wdev = dev->ieee80211_ptr;
9493
4c476991
JB		 9494 if (!rdev->ops->set_power_mgmt)
9495 return -EOPNOTSUPP;
ffb9eb3d
KV		 9496
9497 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9498 if (!msg)
9499 return -ENOMEM;
ffb9eb3d 9500
15e47304 9501 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 9502 NL80211_CMD_GET_POWER_SAVE);
9503 if (!hdr) {
4c476991 9504 err = -ENOBUFS;
ffb9eb3d
KV		 9505 goto free_msg;
9506 }
9507
9508 if (wdev->ps)
9509 ps_state = NL80211_PS_ENABLED;
9510 else
9511 ps_state = NL80211_PS_DISABLED;
9512
9360ffd1
DM		 9513 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9514 goto nla_put_failure;
ffb9eb3d
KV		 9515
9516 genlmsg_end(msg, hdr);
4c476991 9517 return genlmsg_reply(msg, info);
ffb9eb3d 9518
4c476991 9519 nla_put_failure:
ffb9eb3d 9520 err = -ENOBUFS;
4c476991 9521 free_msg:
ffb9eb3d 9522 nlmsg_free(msg);
ffb9eb3d
KV		 9523 return err;
9524}
9525
94e860f1
JB		 9526static const struct nla_policy
9527nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
4a4b8169 9528 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_BINARY },
d6dc1a38
JO		 9529 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9530 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 9531 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9532 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9533 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
bee427b8 9534 [NL80211_ATTR_CQM_RSSI_LEVEL] = { .type = NLA_S32 },
d6dc1a38
JO		 9535};
9536
84f10708 9537static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 9538 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 9539{
9540 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 9541 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9542 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 9543
d9d8b019 9544 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 9545 return -EINVAL;
9546
84f10708
TP		 9547 if (!rdev->ops->set_cqm_txe_config)
9548 return -EOPNOTSUPP;
9549
9550 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9551 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9552 return -EOPNOTSUPP;
9553
e35e4d28 9554 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 9555}
9556
4a4b8169
AZ		 9557static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev,
9558 struct net_device *dev)
9559{
9560 struct wireless_dev *wdev = dev->ieee80211_ptr;
9561 s32 last, low, high;
9562 u32 hyst;
9563 int i, n;
9564 int err;
9565
9566 /* RSSI reporting disabled? */
9567 if (!wdev->cqm_config)
9568 return rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0);
9569
9570 /*
9571 * Obtain current RSSI value if possible, if not and no RSSI threshold
9572 * event has been received yet, we should receive an event after a
9573 * connection is established and enough beacons received to calculate
9574 * the average.
9575 */
9576 if (!wdev->cqm_config->last_rssi_event_value && wdev->current_bss &&
9577 rdev->ops->get_station) {
9578 struct station_info sinfo;
9579 u8 *mac_addr;
9580
9581 mac_addr = wdev->current_bss->pub.bssid;
9582
9583 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
9584 if (err)
9585 return err;
9586
9587 if (sinfo.filled & BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG))
9588 wdev->cqm_config->last_rssi_event_value =
9589 (s8) sinfo.rx_beacon_signal_avg;
9590 }
9591
9592 last = wdev->cqm_config->last_rssi_event_value;
9593 hyst = wdev->cqm_config->rssi_hyst;
9594 n = wdev->cqm_config->n_rssi_thresholds;
9595
9596 for (i = 0; i < n; i++)
9597 if (last < wdev->cqm_config->rssi_thresholds[i])
9598 break;
9599
9600 low = i > 0 ?
9601 (wdev->cqm_config->rssi_thresholds[i - 1] - hyst) : S32_MIN;
9602 high = i < n ?
9603 (wdev->cqm_config->rssi_thresholds[i] + hyst - 1) : S32_MAX;
9604
9605 return rdev_set_cqm_rssi_range_config(rdev, dev, low, high);
9606}
9607
d6dc1a38 9608static int nl80211_set_cqm_rssi(struct genl_info *info,
4a4b8169
AZ		 9609 const s32 *thresholds, int n_thresholds,
9610 u32 hysteresis)
d6dc1a38 9611{
4c476991 9612 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9613 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9614 struct wireless_dev *wdev = dev->ieee80211_ptr;
4a4b8169
AZ		 9615 int i, err;
9616 s32 prev = S32_MIN;
d6dc1a38 9617
4a4b8169
AZ		 9618 /* Check all values negative and sorted */
9619 for (i = 0; i < n_thresholds; i++) {
9620 if (thresholds[i] > 0 || thresholds[i] <= prev)
9621 return -EINVAL;
d6dc1a38 9622
4a4b8169
AZ		 9623 prev = thresholds[i];
9624 }
d6dc1a38 9625
074ac8df 9626 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9627 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9628 return -EOPNOTSUPP;
d6dc1a38 9629
4a4b8169
AZ		 9630 wdev_lock(wdev);
9631 cfg80211_cqm_config_free(wdev);
9632 wdev_unlock(wdev);
9633
9634 if (n_thresholds <= 1 && rdev->ops->set_cqm_rssi_config) {
9635 if (n_thresholds == 0 || thresholds[0] == 0) /* Disabling */
9636 return rdev_set_cqm_rssi_config(rdev, dev, 0, 0);
9637
9638 return rdev_set_cqm_rssi_config(rdev, dev,
9639 thresholds[0], hysteresis);
9640 }
9641
9642 if (!wiphy_ext_feature_isset(&rdev->wiphy,
9643 NL80211_EXT_FEATURE_CQM_RSSI_LIST))
9644 return -EOPNOTSUPP;
9645
9646 if (n_thresholds == 1 && thresholds[0] == 0) /* Disabling */
9647 n_thresholds = 0;
9648
9649 wdev_lock(wdev);
9650 if (n_thresholds) {
9651 struct cfg80211_cqm_config *cqm_config;
9652
9653 cqm_config = kzalloc(sizeof(struct cfg80211_cqm_config) +
9654 n_thresholds * sizeof(s32), GFP_KERNEL);
9655 if (!cqm_config) {
9656 err = -ENOMEM;
9657 goto unlock;
9658 }
9659
9660 cqm_config->rssi_hyst = hysteresis;
9661 cqm_config->n_rssi_thresholds = n_thresholds;
9662 memcpy(cqm_config->rssi_thresholds, thresholds,
9663 n_thresholds * sizeof(s32));
9664
9665 wdev->cqm_config = cqm_config;
9666 }
9667
9668 err = cfg80211_cqm_rssi_update(rdev, dev);
9669
9670unlock:
9671 wdev_unlock(wdev);
9672
9673 return err;
d6dc1a38
JO		 9674}
9675
9676static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9677{
9678 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9679 struct nlattr *cqm;
9680 int err;
9681
9682 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 9683 if (!cqm)
9684 return -EINVAL;
d6dc1a38
JO		 9685
9686 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
9687 nl80211_attr_cqm_policy);
9688 if (err)
1da5fcc8 9689 return err;
d6dc1a38
JO		 9690
9691 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9692 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
4a4b8169
AZ		 9693 const s32 *thresholds =
9694 nla_data(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9695 int len = nla_len(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
1da5fcc8 9696 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 9697
4a4b8169
AZ		 9698 if (len % 4)
9699 return -EINVAL;
9700
9701 return nl80211_set_cqm_rssi(info, thresholds, len / 4,
9702 hysteresis);
1da5fcc8
JB		 9703 }
9704
9705 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9706 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9707 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9708 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9709 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9710 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9711
9712 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9713 }
9714
9715 return -EINVAL;
d6dc1a38
JO		 9716}
9717
6e0bd6c3
RL		 9718static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9719{
9720 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9721 struct net_device *dev = info->user_ptr[1];
9722 struct ocb_setup setup = {};
9723 int err;
9724
9725 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9726 if (err)
9727 return err;
9728
9729 return cfg80211_join_ocb(rdev, dev, &setup);
9730}
9731
9732static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9733{
9734 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9735 struct net_device *dev = info->user_ptr[1];
9736
9737 return cfg80211_leave_ocb(rdev, dev);
9738}
9739
29cbe68c
JB		 9740static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9741{
9742 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9743 struct net_device *dev = info->user_ptr[1];
9744 struct mesh_config cfg;
c80d545d 9745 struct mesh_setup setup;
29cbe68c
JB		 9746 int err;
9747
9748 /* start with default */
9749 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9750 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9751
24bdd9f4 9752 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9753 /* and parse parameters if given */
24bdd9f4 9754 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9755 if (err)
9756 return err;
9757 }
9758
9759 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9760 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9761 return -EINVAL;
9762
c80d545d
JC		 9763 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9764 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9765
4bb62344
CYY		 9766 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9767 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9768 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9769 return -EINVAL;
9770
9bdbf04d
MP		 9771 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9772 setup.beacon_interval =
9773 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9 9774
0c317a02
PK		 9775 err = cfg80211_validate_beacon_int(rdev,
9776 NL80211_IFTYPE_MESH_POINT,
9777 setup.beacon_interval);
12d20fc9
PK		 9778 if (err)
9779 return err;
9bdbf04d
MP		 9780 }
9781
9782 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9783 setup.dtim_period =
9784 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9785 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9786 return -EINVAL;
9787 }
9788
c80d545d
JC		 9789 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9790 /* parse additional setup parameters if given */
9791 err = nl80211_parse_mesh_setup(info, &setup);
9792 if (err)
9793 return err;
9794 }
9795
d37bb18a
TP		 9796 if (setup.user_mpm)
9797 cfg.auto_open_plinks = false;
9798
cc1d2806 9799 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 9800 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9801 if (err)
9802 return err;
cc1d2806
JB		 9803 } else {
9804 /* cfg80211_join_mesh() will sort it out */
683b6d3b 9805 setup.chandef.chan = NULL;
cc1d2806
JB		 9806 }
9807
ffb3cf30
AN		 9808 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9809 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9810 int n_rates =
9811 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9812 struct ieee80211_supported_band *sband;
9813
9814 if (!setup.chandef.chan)
9815 return -EINVAL;
9816
9817 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9818
9819 err = ieee80211_get_ratemask(sband, rates, n_rates,
9820 &setup.basic_rates);
9821 if (err)
9822 return err;
9823 }
9824
8564e382
JB		 9825 if (info->attrs[NL80211_ATTR_TX_RATES]) {
9826 err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
9827 if (err)
9828 return err;
9829
9830 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
9831 &setup.beacon_rate);
9832 if (err)
9833 return err;
9834 }
9835
c80d545d 9836 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 9837}
9838
9839static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9840{
9841 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9842 struct net_device *dev = info->user_ptr[1];
9843
9844 return cfg80211_leave_mesh(rdev, dev);
9845}
9846
dfb89c56 9847#ifdef CONFIG_PM
bb92d199
AK		 9848static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9849 struct cfg80211_registered_device *rdev)
9850{
6abb9cb9 9851 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 9852 struct nlattr *nl_pats, *nl_pat;
9853 int i, pat_len;
9854
6abb9cb9 9855 if (!wowlan->n_patterns)
bb92d199
AK		 9856 return 0;
9857
9858 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9859 if (!nl_pats)
9860 return -ENOBUFS;
9861
6abb9cb9 9862 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 9863 nl_pat = nla_nest_start(msg, i + 1);
9864 if (!nl_pat)
9865 return -ENOBUFS;
6abb9cb9 9866 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 9867 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 9868 wowlan->patterns[i].mask) ||
50ac6607
AK		 9869 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9870 wowlan->patterns[i].pattern) ||
9871 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 9872 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 9873 return -ENOBUFS;
9874 nla_nest_end(msg, nl_pat);
9875 }
9876 nla_nest_end(msg, nl_pats);
9877
9878 return 0;
9879}
9880
2a0e047e
JB		 9881static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9882 struct cfg80211_wowlan_tcp *tcp)
9883{
9884 struct nlattr *nl_tcp;
9885
9886 if (!tcp)
9887 return 0;
9888
9889 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9890 if (!nl_tcp)
9891 return -ENOBUFS;
9892
930345ea
JB		 9893 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9894 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 9895 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9896 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9897 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9898 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9899 tcp->payload_len, tcp->payload) ||
9900 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9901 tcp->data_interval) ||
9902 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9903 tcp->wake_len, tcp->wake_data) ||
9904 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9905 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9906 return -ENOBUFS;
9907
9908 if (tcp->payload_seq.len &&
9909 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9910 sizeof(tcp->payload_seq), &tcp->payload_seq))
9911 return -ENOBUFS;
9912
9913 if (tcp->payload_tok.len &&
9914 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9915 sizeof(tcp->payload_tok) + tcp->tokens_size,
9916 &tcp->payload_tok))
9917 return -ENOBUFS;
9918
e248ad30
JB		 9919 nla_nest_end(msg, nl_tcp);
9920
2a0e047e
JB		 9921 return 0;
9922}
9923
75453ccb
LC		 9924static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9925 struct cfg80211_sched_scan_request *req)
9926{
3b06d277 9927 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 9928 int i;
9929
9930 if (!req)
9931 return 0;
9932
9933 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9934 if (!nd)
9935 return -ENOBUFS;
9936
3b06d277
AS		 9937 if (req->n_scan_plans == 1 &&
9938 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9939 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9940 return -ENOBUFS;
9941
21fea567
LC		 9942 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9943 return -ENOBUFS;
9944
bf95ecdb 9945 if (req->relative_rssi_set) {
9946 struct nl80211_bss_select_rssi_adjust rssi_adjust;
9947
9948 if (nla_put_s8(msg, NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI,
9949 req->relative_rssi))
9950 return -ENOBUFS;
9951
9952 rssi_adjust.band = req->rssi_adjust.band;
9953 rssi_adjust.delta = req->rssi_adjust.delta;
9954 if (nla_put(msg, NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST,
9955 sizeof(rssi_adjust), &rssi_adjust))
9956 return -ENOBUFS;
9957 }
9958
75453ccb
LC		 9959 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9960 if (!freqs)
9961 return -ENOBUFS;
9962
53b18980
JB		 9963 for (i = 0; i < req->n_channels; i++) {
9964 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9965 return -ENOBUFS;
9966 }
75453ccb
LC		 9967
9968 nla_nest_end(msg, freqs);
9969
9970 if (req->n_match_sets) {
9971 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
76e1fb4b
JB		 9972 if (!matches)
9973 return -ENOBUFS;
9974
75453ccb
LC		 9975 for (i = 0; i < req->n_match_sets; i++) {
9976 match = nla_nest_start(msg, i);
76e1fb4b
JB		 9977 if (!match)
9978 return -ENOBUFS;
9979
53b18980
JB		 9980 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9981 req->match_sets[i].ssid.ssid_len,
9982 req->match_sets[i].ssid.ssid))
9983 return -ENOBUFS;
75453ccb
LC		 9984 nla_nest_end(msg, match);
9985 }
9986 nla_nest_end(msg, matches);
9987 }
9988
3b06d277
AS		 9989 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9990 if (!scan_plans)
9991 return -ENOBUFS;
9992
9993 for (i = 0; i < req->n_scan_plans; i++) {
9994 scan_plan = nla_nest_start(msg, i + 1);
76e1fb4b
JB		 9995 if (!scan_plan)
9996 return -ENOBUFS;
9997
3b06d277
AS		 9998 if (!scan_plan ||
9999 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
10000 req->scan_plans[i].interval) ||
10001 (req->scan_plans[i].iterations &&
10002 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
10003 req->scan_plans[i].iterations)))
10004 return -ENOBUFS;
10005 nla_nest_end(msg, scan_plan);
10006 }
10007 nla_nest_end(msg, scan_plans);
10008
75453ccb
LC		 10009 nla_nest_end(msg, nd);
10010
10011 return 0;
10012}
10013
ff1b6e69
JB		 10014static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
10015{
10016 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10017 struct sk_buff *msg;
10018 void *hdr;
2a0e047e 10019 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 10020
964dc9e2 10021 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 10022 return -EOPNOTSUPP;
10023
6abb9cb9 10024 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 10025 /* adjust size to have room for all the data */
6abb9cb9
JB		 10026 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
10027 rdev->wiphy.wowlan_config->tcp->payload_len +
10028 rdev->wiphy.wowlan_config->tcp->wake_len +
10029 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 10030 }
10031
10032 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 10033 if (!msg)
10034 return -ENOMEM;
10035
15e47304 10036 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 10037 NL80211_CMD_GET_WOWLAN);
10038 if (!hdr)
10039 goto nla_put_failure;
10040
6abb9cb9 10041 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 10042 struct nlattr *nl_wowlan;
10043
10044 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10045 if (!nl_wowlan)
10046 goto nla_put_failure;
10047
6abb9cb9 10048 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 10049 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 10050 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 10051 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 10052 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 10053 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 10054 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 10055 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 10056 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 10057 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 10058 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 10059 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 10060 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 10061 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
10062 goto nla_put_failure;
2a0e047e 10063
bb92d199
AK		 10064 if (nl80211_send_wowlan_patterns(msg, rdev))
10065 goto nla_put_failure;
2a0e047e 10066
6abb9cb9
JB		 10067 if (nl80211_send_wowlan_tcp(msg,
10068 rdev->wiphy.wowlan_config->tcp))
2a0e047e 10069 goto nla_put_failure;
75453ccb
LC		 10070
10071 if (nl80211_send_wowlan_nd(
10072 msg,
10073 rdev->wiphy.wowlan_config->nd_config))
10074 goto nla_put_failure;
2a0e047e 10075
ff1b6e69
JB		 10076 nla_nest_end(msg, nl_wowlan);
10077 }
10078
10079 genlmsg_end(msg, hdr);
10080 return genlmsg_reply(msg, info);
10081
10082nla_put_failure:
10083 nlmsg_free(msg);
10084 return -ENOBUFS;
10085}
10086
2a0e047e
JB		 10087static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
10088 struct nlattr *attr,
10089 struct cfg80211_wowlan *trig)
10090{
10091 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
10092 struct cfg80211_wowlan_tcp *cfg;
10093 struct nl80211_wowlan_tcp_data_token *tok = NULL;
10094 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
10095 u32 size;
10096 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
10097 int err, port;
10098
964dc9e2 10099 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 10100 return -EINVAL;
10101
bfe2c7b1
JB		 10102 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TCP, attr,
10103 nl80211_wowlan_tcp_policy);
2a0e047e
JB		 10104 if (err)
10105 return err;
10106
10107 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
10108 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
10109 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
10110 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
10111 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
10112 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
10113 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
10114 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
10115 return -EINVAL;
10116
10117 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 10118 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 10119 return -EINVAL;
10120
10121 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 10122 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 10123 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 10124 return -EINVAL;
10125
10126 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 10127 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 10128 return -EINVAL;
10129
10130 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
10131 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
10132 return -EINVAL;
10133
10134 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
10135 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10136
10137 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10138 tokens_size = tokln - sizeof(*tok);
10139
10140 if (!tok->len || tokens_size % tok->len)
10141 return -EINVAL;
964dc9e2 10142 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 10143 return -EINVAL;
964dc9e2 10144 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 10145 return -EINVAL;
964dc9e2 10146 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 10147 return -EINVAL;
964dc9e2 10148 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 10149 return -EINVAL;
10150 if (tok->offset + tok->len > data_size)
10151 return -EINVAL;
10152 }
10153
10154 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
10155 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 10156 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 10157 return -EINVAL;
10158 if (seq->len == 0 || seq->len > 4)
10159 return -EINVAL;
10160 if (seq->len + seq->offset > data_size)
10161 return -EINVAL;
10162 }
10163
10164 size = sizeof(*cfg);
10165 size += data_size;
10166 size += wake_size + wake_mask_size;
10167 size += tokens_size;
10168
10169 cfg = kzalloc(size, GFP_KERNEL);
10170 if (!cfg)
10171 return -ENOMEM;
67b61f6c
JB		 10172 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
10173 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 10174 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
10175 ETH_ALEN);
10176 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
10177 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
10178 else
10179 port = 0;
10180#ifdef CONFIG_INET
10181 /* allocate a socket and port for it and use it */
10182 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
10183 IPPROTO_TCP, &cfg->sock, 1);
10184 if (err) {
10185 kfree(cfg);
10186 return err;
10187 }
10188 if (inet_csk_get_port(cfg->sock->sk, port)) {
10189 sock_release(cfg->sock);
10190 kfree(cfg);
10191 return -EADDRINUSE;
10192 }
10193 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
10194#else
10195 if (!port) {
10196 kfree(cfg);
10197 return -EINVAL;
10198 }
10199 cfg->src_port = port;
10200#endif
10201
10202 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
10203 cfg->payload_len = data_size;
10204 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
10205 memcpy((void *)cfg->payload,
10206 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
10207 data_size);
10208 if (seq)
10209 cfg->payload_seq = *seq;
10210 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
10211 cfg->wake_len = wake_size;
10212 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
10213 memcpy((void *)cfg->wake_data,
10214 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
10215 wake_size);
10216 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
10217 data_size + wake_size;
10218 memcpy((void *)cfg->wake_mask,
10219 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
10220 wake_mask_size);
10221 if (tok) {
10222 cfg->tokens_size = tokens_size;
10223 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
10224 }
10225
10226 trig->tcp = cfg;
10227
10228 return 0;
10229}
10230
8cd4d456
LC		 10231static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
10232 const struct wiphy_wowlan_support *wowlan,
10233 struct nlattr *attr,
10234 struct cfg80211_wowlan *trig)
10235{
10236 struct nlattr **tb;
10237 int err;
10238
10239 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
10240 if (!tb)
10241 return -ENOMEM;
10242
10243 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
10244 err = -EOPNOTSUPP;
10245 goto out;
10246 }
10247
bfe2c7b1 10248 err = nla_parse_nested(tb, NL80211_ATTR_MAX, attr, nl80211_policy);
8cd4d456
LC		 10249 if (err)
10250 goto out;
10251
aad1e812
AVS		 10252 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb,
10253 wowlan->max_nd_match_sets);
8cd4d456
LC		 10254 err = PTR_ERR_OR_ZERO(trig->nd_config);
10255 if (err)
10256 trig->nd_config = NULL;
10257
10258out:
10259 kfree(tb);
10260 return err;
10261}
10262
ff1b6e69
JB		 10263static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
10264{
10265 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10266 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 10267 struct cfg80211_wowlan new_triggers = {};
ae33bd81 10268 struct cfg80211_wowlan *ntrig;
964dc9e2 10269 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 10270 int err, i;
6abb9cb9 10271 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 10272 bool regular = false;
ff1b6e69 10273
964dc9e2 10274 if (!wowlan)
ff1b6e69
JB		 10275 return -EOPNOTSUPP;
10276
ae33bd81
JB		 10277 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
10278 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 10279 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 10280 goto set_wakeup;
10281 }
ff1b6e69 10282
bfe2c7b1
JB		 10283 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TRIG,
10284 info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS],
10285 nl80211_wowlan_policy);
ff1b6e69
JB		 10286 if (err)
10287 return err;
10288
10289 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
10290 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
10291 return -EINVAL;
10292 new_triggers.any = true;
10293 }
10294
10295 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
10296 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
10297 return -EINVAL;
10298 new_triggers.disconnect = true;
98fc4386 10299 regular = true;
ff1b6e69
JB		 10300 }
10301
10302 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
10303 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
10304 return -EINVAL;
10305 new_triggers.magic_pkt = true;
98fc4386 10306 regular = true;
ff1b6e69
JB		 10307 }
10308
77dbbb13
JB		 10309 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
10310 return -EINVAL;
10311
10312 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
10313 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
10314 return -EINVAL;
10315 new_triggers.gtk_rekey_failure = true;
98fc4386 10316 regular = true;
77dbbb13
JB		 10317 }
10318
10319 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
10320 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
10321 return -EINVAL;
10322 new_triggers.eap_identity_req = true;
98fc4386 10323 regular = true;
77dbbb13
JB		 10324 }
10325
10326 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
10327 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
10328 return -EINVAL;
10329 new_triggers.four_way_handshake = true;
98fc4386 10330 regular = true;
77dbbb13
JB		 10331 }
10332
10333 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
10334 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
10335 return -EINVAL;
10336 new_triggers.rfkill_release = true;
98fc4386 10337 regular = true;
77dbbb13
JB		 10338 }
10339
ff1b6e69
JB		 10340 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
10341 struct nlattr *pat;
10342 int n_patterns = 0;
bb92d199 10343 int rem, pat_len, mask_len, pkt_offset;
50ac6607 10344 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 10345
98fc4386
JB		 10346 regular = true;
10347
ff1b6e69
JB		 10348 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10349 rem)
10350 n_patterns++;
10351 if (n_patterns > wowlan->n_patterns)
10352 return -EINVAL;
10353
10354 new_triggers.patterns = kcalloc(n_patterns,
10355 sizeof(new_triggers.patterns[0]),
10356 GFP_KERNEL);
10357 if (!new_triggers.patterns)
10358 return -ENOMEM;
10359
10360 new_triggers.n_patterns = n_patterns;
10361 i = 0;
10362
10363 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10364 rem) {
922bd80f
JB		 10365 u8 *mask_pat;
10366
bfe2c7b1
JB		 10367 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
10368 NULL);
ff1b6e69 10369 err = -EINVAL;
50ac6607
AK		 10370 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10371 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 10372 goto error;
50ac6607 10373 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 10374 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 10375 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 10376 goto error;
10377 if (pat_len > wowlan->pattern_max_len ||
10378 pat_len < wowlan->pattern_min_len)
10379 goto error;
10380
50ac6607 10381 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 10382 pkt_offset = 0;
10383 else
10384 pkt_offset = nla_get_u32(
50ac6607 10385 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 10386 if (pkt_offset > wowlan->max_pkt_offset)
10387 goto error;
10388 new_triggers.patterns[i].pkt_offset = pkt_offset;
10389
922bd80f
JB		 10390 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10391 if (!mask_pat) {
ff1b6e69
JB		 10392 err = -ENOMEM;
10393 goto error;
10394 }
922bd80f
JB		 10395 new_triggers.patterns[i].mask = mask_pat;
10396 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 10397 mask_len);
922bd80f
JB		 10398 mask_pat += mask_len;
10399 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 10400 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 10401 memcpy(mask_pat,
50ac6607 10402 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 10403 pat_len);
10404 i++;
10405 }
10406 }
10407
2a0e047e 10408 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 10409 regular = true;
2a0e047e
JB		 10410 err = nl80211_parse_wowlan_tcp(
10411 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
10412 &new_triggers);
10413 if (err)
10414 goto error;
10415 }
10416
8cd4d456 10417 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 10418 regular = true;
8cd4d456
LC		 10419 err = nl80211_parse_wowlan_nd(
10420 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
10421 &new_triggers);
10422 if (err)
10423 goto error;
10424 }
10425
98fc4386
JB		 10426 /* The 'any' trigger means the device continues operating more or less
10427 * as in its normal operation mode and wakes up the host on most of the
10428 * normal interrupts (like packet RX, ...)
10429 * It therefore makes little sense to combine with the more constrained
10430 * wakeup trigger modes.
10431 */
10432 if (new_triggers.any && regular) {
10433 err = -EINVAL;
10434 goto error;
10435 }
10436
ae33bd81
JB		 10437 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
10438 if (!ntrig) {
10439 err = -ENOMEM;
10440 goto error;
ff1b6e69 10441 }
ae33bd81 10442 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 10443 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 10444
ae33bd81 10445 set_wakeup:
6abb9cb9
JB		 10446 if (rdev->ops->set_wakeup &&
10447 prev_enabled != !!rdev->wiphy.wowlan_config)
10448 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 10449
ff1b6e69
JB		 10450 return 0;
10451 error:
10452 for (i = 0; i < new_triggers.n_patterns; i++)
10453 kfree(new_triggers.patterns[i].mask);
10454 kfree(new_triggers.patterns);
2a0e047e
JB		 10455 if (new_triggers.tcp && new_triggers.tcp->sock)
10456 sock_release(new_triggers.tcp->sock);
10457 kfree(new_triggers.tcp);
e5dbe070 10458 kfree(new_triggers.nd_config);
ff1b6e69
JB		 10459 return err;
10460}
dfb89c56 10461#endif
ff1b6e69 10462
be29b99a
AK		 10463static int nl80211_send_coalesce_rules(struct sk_buff *msg,
10464 struct cfg80211_registered_device *rdev)
10465{
10466 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
10467 int i, j, pat_len;
10468 struct cfg80211_coalesce_rules *rule;
10469
10470 if (!rdev->coalesce->n_rules)
10471 return 0;
10472
10473 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
10474 if (!nl_rules)
10475 return -ENOBUFS;
10476
10477 for (i = 0; i < rdev->coalesce->n_rules; i++) {
10478 nl_rule = nla_nest_start(msg, i + 1);
10479 if (!nl_rule)
10480 return -ENOBUFS;
10481
10482 rule = &rdev->coalesce->rules[i];
10483 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
10484 rule->delay))
10485 return -ENOBUFS;
10486
10487 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
10488 rule->condition))
10489 return -ENOBUFS;
10490
10491 nl_pats = nla_nest_start(msg,
10492 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
10493 if (!nl_pats)
10494 return -ENOBUFS;
10495
10496 for (j = 0; j < rule->n_patterns; j++) {
10497 nl_pat = nla_nest_start(msg, j + 1);
10498 if (!nl_pat)
10499 return -ENOBUFS;
10500 pat_len = rule->patterns[j].pattern_len;
10501 if (nla_put(msg, NL80211_PKTPAT_MASK,
10502 DIV_ROUND_UP(pat_len, 8),
10503 rule->patterns[j].mask) ||
10504 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10505 rule->patterns[j].pattern) ||
10506 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10507 rule->patterns[j].pkt_offset))
10508 return -ENOBUFS;
10509 nla_nest_end(msg, nl_pat);
10510 }
10511 nla_nest_end(msg, nl_pats);
10512 nla_nest_end(msg, nl_rule);
10513 }
10514 nla_nest_end(msg, nl_rules);
10515
10516 return 0;
10517}
10518
10519static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
10520{
10521 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10522 struct sk_buff *msg;
10523 void *hdr;
10524
10525 if (!rdev->wiphy.coalesce)
10526 return -EOPNOTSUPP;
10527
10528 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10529 if (!msg)
10530 return -ENOMEM;
10531
10532 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10533 NL80211_CMD_GET_COALESCE);
10534 if (!hdr)
10535 goto nla_put_failure;
10536
10537 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
10538 goto nla_put_failure;
10539
10540 genlmsg_end(msg, hdr);
10541 return genlmsg_reply(msg, info);
10542
10543nla_put_failure:
10544 nlmsg_free(msg);
10545 return -ENOBUFS;
10546}
10547
10548void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
10549{
10550 struct cfg80211_coalesce *coalesce = rdev->coalesce;
10551 int i, j;
10552 struct cfg80211_coalesce_rules *rule;
10553
10554 if (!coalesce)
10555 return;
10556
10557 for (i = 0; i < coalesce->n_rules; i++) {
10558 rule = &coalesce->rules[i];
10559 for (j = 0; j < rule->n_patterns; j++)
10560 kfree(rule->patterns[j].mask);
10561 kfree(rule->patterns);
10562 }
10563 kfree(coalesce->rules);
10564 kfree(coalesce);
10565 rdev->coalesce = NULL;
10566}
10567
10568static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10569 struct nlattr *rule,
10570 struct cfg80211_coalesce_rules *new_rule)
10571{
10572 int err, i;
10573 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10574 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10575 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10576 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10577
bfe2c7b1
JB		 10578 err = nla_parse_nested(tb, NL80211_ATTR_COALESCE_RULE_MAX, rule,
10579 nl80211_coalesce_policy);
be29b99a
AK		 10580 if (err)
10581 return err;
10582
10583 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10584 new_rule->delay =
10585 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10586 if (new_rule->delay > coalesce->max_delay)
10587 return -EINVAL;
10588
10589 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10590 new_rule->condition =
10591 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10592 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10593 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10594 return -EINVAL;
10595
10596 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10597 return -EINVAL;
10598
10599 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10600 rem)
10601 n_patterns++;
10602 if (n_patterns > coalesce->n_patterns)
10603 return -EINVAL;
10604
10605 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10606 GFP_KERNEL);
10607 if (!new_rule->patterns)
10608 return -ENOMEM;
10609
10610 new_rule->n_patterns = n_patterns;
10611 i = 0;
10612
10613 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10614 rem) {
922bd80f
JB		 10615 u8 *mask_pat;
10616
bfe2c7b1 10617 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat, NULL);
be29b99a
AK		 10618 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10619 !pat_tb[NL80211_PKTPAT_PATTERN])
10620 return -EINVAL;
10621 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10622 mask_len = DIV_ROUND_UP(pat_len, 8);
10623 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10624 return -EINVAL;
10625 if (pat_len > coalesce->pattern_max_len ||
10626 pat_len < coalesce->pattern_min_len)
10627 return -EINVAL;
10628
10629 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10630 pkt_offset = 0;
10631 else
10632 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10633 if (pkt_offset > coalesce->max_pkt_offset)
10634 return -EINVAL;
10635 new_rule->patterns[i].pkt_offset = pkt_offset;
10636
922bd80f
JB		 10637 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10638 if (!mask_pat)
be29b99a 10639 return -ENOMEM;
922bd80f
JB		 10640
10641 new_rule->patterns[i].mask = mask_pat;
10642 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10643 mask_len);
10644
10645 mask_pat += mask_len;
10646 new_rule->patterns[i].pattern = mask_pat;
be29b99a 10647 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 10648 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10649 pat_len);
be29b99a
AK		 10650 i++;
10651 }
10652
10653 return 0;
10654}
10655
10656static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10657{
10658 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10659 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10660 struct cfg80211_coalesce new_coalesce = {};
10661 struct cfg80211_coalesce *n_coalesce;
10662 int err, rem_rule, n_rules = 0, i, j;
10663 struct nlattr *rule;
10664 struct cfg80211_coalesce_rules *tmp_rule;
10665
10666 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10667 return -EOPNOTSUPP;
10668
10669 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10670 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 10671 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 10672 return 0;
10673 }
10674
10675 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10676 rem_rule)
10677 n_rules++;
10678 if (n_rules > coalesce->n_rules)
10679 return -EINVAL;
10680
10681 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10682 GFP_KERNEL);
10683 if (!new_coalesce.rules)
10684 return -ENOMEM;
10685
10686 new_coalesce.n_rules = n_rules;
10687 i = 0;
10688
10689 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10690 rem_rule) {
10691 err = nl80211_parse_coalesce_rule(rdev, rule,
10692 &new_coalesce.rules[i]);
10693 if (err)
10694 goto error;
10695
10696 i++;
10697 }
10698
a1056b1b 10699 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 10700 if (err)
10701 goto error;
10702
10703 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10704 if (!n_coalesce) {
10705 err = -ENOMEM;
10706 goto error;
10707 }
10708 cfg80211_rdev_free_coalesce(rdev);
10709 rdev->coalesce = n_coalesce;
10710
10711 return 0;
10712error:
10713 for (i = 0; i < new_coalesce.n_rules; i++) {
10714 tmp_rule = &new_coalesce.rules[i];
10715 for (j = 0; j < tmp_rule->n_patterns; j++)
10716 kfree(tmp_rule->patterns[j].mask);
10717 kfree(tmp_rule->patterns);
10718 }
10719 kfree(new_coalesce.rules);
10720
10721 return err;
10722}
10723
e5497d76
JB		 10724static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10725{
10726 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10727 struct net_device *dev = info->user_ptr[1];
10728 struct wireless_dev *wdev = dev->ieee80211_ptr;
10729 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10730 struct cfg80211_gtk_rekey_data rekey_data;
10731 int err;
10732
10733 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10734 return -EINVAL;
10735
bfe2c7b1
JB		 10736 err = nla_parse_nested(tb, MAX_NL80211_REKEY_DATA,
10737 info->attrs[NL80211_ATTR_REKEY_DATA],
10738 nl80211_rekey_policy);
e5497d76
JB		 10739 if (err)
10740 return err;
10741
10742 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10743 return -ERANGE;
10744 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10745 return -ERANGE;
10746 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10747 return -ERANGE;
10748
78f686ca
JB		 10749 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10750 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10751 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 10752
10753 wdev_lock(wdev);
10754 if (!wdev->current_bss) {
10755 err = -ENOTCONN;
10756 goto out;
10757 }
10758
10759 if (!rdev->ops->set_rekey_data) {
10760 err = -EOPNOTSUPP;
10761 goto out;
10762 }
10763
e35e4d28 10764 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 10765 out:
10766 wdev_unlock(wdev);
10767 return err;
10768}
10769
28946da7
JB		 10770static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10771 struct genl_info *info)
10772{
10773 struct net_device *dev = info->user_ptr[1];
10774 struct wireless_dev *wdev = dev->ieee80211_ptr;
10775
10776 if (wdev->iftype != NL80211_IFTYPE_AP &&
10777 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10778 return -EINVAL;
10779
15e47304 10780 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 10781 return -EBUSY;
10782
15e47304 10783 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 10784 return 0;
10785}
10786
7f6cf311
JB		 10787static int nl80211_probe_client(struct sk_buff *skb,
10788 struct genl_info *info)
10789{
10790 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10791 struct net_device *dev = info->user_ptr[1];
10792 struct wireless_dev *wdev = dev->ieee80211_ptr;
10793 struct sk_buff *msg;
10794 void *hdr;
10795 const u8 *addr;
10796 u64 cookie;
10797 int err;
10798
10799 if (wdev->iftype != NL80211_IFTYPE_AP &&
10800 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10801 return -EOPNOTSUPP;
10802
10803 if (!info->attrs[NL80211_ATTR_MAC])
10804 return -EINVAL;
10805
10806 if (!rdev->ops->probe_client)
10807 return -EOPNOTSUPP;
10808
10809 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10810 if (!msg)
10811 return -ENOMEM;
10812
15e47304 10813 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 10814 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 10815 if (!hdr) {
10816 err = -ENOBUFS;
7f6cf311
JB		 10817 goto free_msg;
10818 }
10819
10820 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10821
e35e4d28 10822 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 10823 if (err)
10824 goto free_msg;
10825
2dad624e
ND		 10826 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10827 NL80211_ATTR_PAD))
9360ffd1 10828 goto nla_put_failure;
7f6cf311
JB		 10829
10830 genlmsg_end(msg, hdr);
10831
10832 return genlmsg_reply(msg, info);
10833
10834 nla_put_failure:
10835 err = -ENOBUFS;
10836 free_msg:
10837 nlmsg_free(msg);
10838 return err;
10839}
10840
5e760230
JB		 10841static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10842{
10843 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 10844 struct cfg80211_beacon_registration *reg, *nreg;
10845 int rv;
5e760230
JB		 10846
10847 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10848 return -EOPNOTSUPP;
10849
37c73b5f
BG		 10850 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10851 if (!nreg)
10852 return -ENOMEM;
10853
10854 /* First, check if already registered. */
10855 spin_lock_bh(&rdev->beacon_registrations_lock);
10856 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10857 if (reg->nlportid == info->snd_portid) {
10858 rv = -EALREADY;
10859 goto out_err;
10860 }
10861 }
10862 /* Add it to the list */
10863 nreg->nlportid = info->snd_portid;
10864 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 10865
37c73b5f 10866 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10867
10868 return 0;
37c73b5f
BG		 10869out_err:
10870 spin_unlock_bh(&rdev->beacon_registrations_lock);
10871 kfree(nreg);
10872 return rv;
5e760230
JB		 10873}
10874
98104fde
JB		 10875static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10876{
10877 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10878 struct wireless_dev *wdev = info->user_ptr[1];
10879 int err;
10880
10881 if (!rdev->ops->start_p2p_device)
10882 return -EOPNOTSUPP;
10883
10884 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10885 return -EOPNOTSUPP;
10886
73c7da3d 10887 if (wdev_running(wdev))
98104fde
JB		 10888 return 0;
10889
b6a55015
LC		 10890 if (rfkill_blocked(rdev->rfkill))
10891 return -ERFKILL;
98104fde 10892
eeb126e9 10893 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 10894 if (err)
10895 return err;
10896
73c7da3d 10897 wdev->is_running = true;
98104fde 10898 rdev->opencount++;
98104fde
JB		 10899
10900 return 0;
10901}
10902
10903static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10904{
10905 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10906 struct wireless_dev *wdev = info->user_ptr[1];
10907
10908 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10909 return -EOPNOTSUPP;
10910
10911 if (!rdev->ops->stop_p2p_device)
10912 return -EOPNOTSUPP;
10913
f9f47529 10914 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 10915
10916 return 0;
10917}
10918
cb3b7d87
AB		 10919static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
10920{
10921 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10922 struct wireless_dev *wdev = info->user_ptr[1];
10923 struct cfg80211_nan_conf conf = {};
10924 int err;
10925
10926 if (wdev->iftype != NL80211_IFTYPE_NAN)
10927 return -EOPNOTSUPP;
10928
eeb04a96 10929 if (wdev_running(wdev))
cb3b7d87
AB		 10930 return -EEXIST;
10931
10932 if (rfkill_blocked(rdev->rfkill))
10933 return -ERFKILL;
10934
10935 if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
10936 return -EINVAL;
10937
cb3b7d87
AB		 10938 conf.master_pref =
10939 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
10940 if (!conf.master_pref)
10941 return -EINVAL;
10942
8585989d
LC		 10943 if (info->attrs[NL80211_ATTR_BANDS]) {
10944 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
10945
10946 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
10947 return -EOPNOTSUPP;
10948
10949 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
10950 return -EINVAL;
10951
10952 conf.bands = bands;
10953 }
cb3b7d87
AB		 10954
10955 err = rdev_start_nan(rdev, wdev, &conf);
10956 if (err)
10957 return err;
10958
73c7da3d 10959 wdev->is_running = true;
cb3b7d87
AB		 10960 rdev->opencount++;
10961
10962 return 0;
10963}
10964
10965static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
10966{
10967 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10968 struct wireless_dev *wdev = info->user_ptr[1];
10969
10970 if (wdev->iftype != NL80211_IFTYPE_NAN)
10971 return -EOPNOTSUPP;
10972
10973 cfg80211_stop_nan(rdev, wdev);
10974
10975 return 0;
10976}
10977
a442b761
AB		 10978static int validate_nan_filter(struct nlattr *filter_attr)
10979{
10980 struct nlattr *attr;
10981 int len = 0, n_entries = 0, rem;
10982
10983 nla_for_each_nested(attr, filter_attr, rem) {
10984 len += nla_len(attr);
10985 n_entries++;
10986 }
10987
10988 if (len >= U8_MAX)
10989 return -EINVAL;
10990
10991 return n_entries;
10992}
10993
10994static int handle_nan_filter(struct nlattr *attr_filter,
10995 struct cfg80211_nan_func *func,
10996 bool tx)
10997{
10998 struct nlattr *attr;
10999 int n_entries, rem, i;
11000 struct cfg80211_nan_func_filter *filter;
11001
11002 n_entries = validate_nan_filter(attr_filter);
11003 if (n_entries < 0)
11004 return n_entries;
11005
11006 BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters));
11007
11008 filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL);
11009 if (!filter)
11010 return -ENOMEM;
11011
11012 i = 0;
11013 nla_for_each_nested(attr, attr_filter, rem) {
b15ca182 11014 filter[i].filter = nla_memdup(attr, GFP_KERNEL);
a442b761
AB		 11015 filter[i].len = nla_len(attr);
11016 i++;
11017 }
11018 if (tx) {
11019 func->num_tx_filters = n_entries;
11020 func->tx_filters = filter;
11021 } else {
11022 func->num_rx_filters = n_entries;
11023 func->rx_filters = filter;
11024 }
11025
11026 return 0;
11027}
11028
11029static int nl80211_nan_add_func(struct sk_buff *skb,
11030 struct genl_info *info)
11031{
11032 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11033 struct wireless_dev *wdev = info->user_ptr[1];
11034 struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr;
11035 struct cfg80211_nan_func *func;
11036 struct sk_buff *msg = NULL;
11037 void *hdr = NULL;
11038 int err = 0;
11039
11040 if (wdev->iftype != NL80211_IFTYPE_NAN)
11041 return -EOPNOTSUPP;
11042
73c7da3d 11043 if (!wdev_running(wdev))
a442b761
AB		 11044 return -ENOTCONN;
11045
11046 if (!info->attrs[NL80211_ATTR_NAN_FUNC])
11047 return -EINVAL;
11048
11049 if (wdev->owner_nlportid &&
11050 wdev->owner_nlportid != info->snd_portid)
11051 return -ENOTCONN;
11052
bfe2c7b1
JB		 11053 err = nla_parse_nested(tb, NL80211_NAN_FUNC_ATTR_MAX,
11054 info->attrs[NL80211_ATTR_NAN_FUNC],
11055 nl80211_nan_func_policy);
a442b761
AB		 11056 if (err)
11057 return err;
11058
11059 func = kzalloc(sizeof(*func), GFP_KERNEL);
11060 if (!func)
11061 return -ENOMEM;
11062
11063 func->cookie = wdev->wiphy->cookie_counter++;
11064
11065 if (!tb[NL80211_NAN_FUNC_TYPE] ||
11066 nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]) > NL80211_NAN_FUNC_MAX_TYPE) {
11067 err = -EINVAL;
11068 goto out;
11069 }
11070
11071
11072 func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]);
11073
11074 if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) {
11075 err = -EINVAL;
11076 goto out;
11077 }
11078
11079 memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]),
11080 sizeof(func->service_id));
11081
11082 func->close_range =
11083 nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]);
11084
11085 if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) {
11086 func->serv_spec_info_len =
11087 nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]);
11088 func->serv_spec_info =
11089 kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]),
11090 func->serv_spec_info_len,
11091 GFP_KERNEL);
11092 if (!func->serv_spec_info) {
11093 err = -ENOMEM;
11094 goto out;
11095 }
11096 }
11097
11098 if (tb[NL80211_NAN_FUNC_TTL])
11099 func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]);
11100
11101 switch (func->type) {
11102 case NL80211_NAN_FUNC_PUBLISH:
11103 if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) {
11104 err = -EINVAL;
11105 goto out;
11106 }
11107
11108 func->publish_type =
11109 nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]);
11110 func->publish_bcast =
11111 nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]);
11112
11113 if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) &&
11114 func->publish_bcast) {
11115 err = -EINVAL;
11116 goto out;
11117 }
11118 break;
11119 case NL80211_NAN_FUNC_SUBSCRIBE:
11120 func->subscribe_active =
11121 nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]);
11122 break;
11123 case NL80211_NAN_FUNC_FOLLOW_UP:
11124 if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] ||
11125 !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]) {
11126 err = -EINVAL;
11127 goto out;
11128 }
11129
11130 func->followup_id =
11131 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]);
11132 func->followup_reqid =
11133 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]);
11134 memcpy(func->followup_dest.addr,
11135 nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]),
11136 sizeof(func->followup_dest.addr));
11137 if (func->ttl) {
11138 err = -EINVAL;
11139 goto out;
11140 }
11141 break;
11142 default:
11143 err = -EINVAL;
11144 goto out;
11145 }
11146
11147 if (tb[NL80211_NAN_FUNC_SRF]) {
11148 struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR];
11149
bfe2c7b1
JB		 11150 err = nla_parse_nested(srf_tb, NL80211_NAN_SRF_ATTR_MAX,
11151 tb[NL80211_NAN_FUNC_SRF],
11152 nl80211_nan_srf_policy);
a442b761
AB		 11153 if (err)
11154 goto out;
11155
11156 func->srf_include =
11157 nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]);
11158
11159 if (srf_tb[NL80211_NAN_SRF_BF]) {
11160 if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] ||
11161 !srf_tb[NL80211_NAN_SRF_BF_IDX]) {
11162 err = -EINVAL;
11163 goto out;
11164 }
11165
11166 func->srf_bf_len =
11167 nla_len(srf_tb[NL80211_NAN_SRF_BF]);
11168 func->srf_bf =
11169 kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]),
11170 func->srf_bf_len, GFP_KERNEL);
11171 if (!func->srf_bf) {
11172 err = -ENOMEM;
11173 goto out;
11174 }
11175
11176 func->srf_bf_idx =
11177 nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]);
11178 } else {
11179 struct nlattr *attr, *mac_attr =
11180 srf_tb[NL80211_NAN_SRF_MAC_ADDRS];
11181 int n_entries, rem, i = 0;
11182
11183 if (!mac_attr) {
11184 err = -EINVAL;
11185 goto out;
11186 }
11187
11188 n_entries = validate_acl_mac_addrs(mac_attr);
11189 if (n_entries <= 0) {
11190 err = -EINVAL;
11191 goto out;
11192 }
11193
11194 func->srf_num_macs = n_entries;
11195 func->srf_macs =
11196 kzalloc(sizeof(*func->srf_macs) * n_entries,
11197 GFP_KERNEL);
11198 if (!func->srf_macs) {
11199 err = -ENOMEM;
11200 goto out;
11201 }
11202
11203 nla_for_each_nested(attr, mac_attr, rem)
11204 memcpy(func->srf_macs[i++].addr, nla_data(attr),
11205 sizeof(*func->srf_macs));
11206 }
11207 }
11208
11209 if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) {
11210 err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER],
11211 func, true);
11212 if (err)
11213 goto out;
11214 }
11215
11216 if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) {
11217 err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER],
11218 func, false);
11219 if (err)
11220 goto out;
11221 }
11222
11223 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11224 if (!msg) {
11225 err = -ENOMEM;
11226 goto out;
11227 }
11228
11229 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11230 NL80211_CMD_ADD_NAN_FUNCTION);
11231 /* This can't really happen - we just allocated 4KB */
11232 if (WARN_ON(!hdr)) {
11233 err = -ENOMEM;
11234 goto out;
11235 }
11236
11237 err = rdev_add_nan_func(rdev, wdev, func);
11238out:
11239 if (err < 0) {
11240 cfg80211_free_nan_func(func);
11241 nlmsg_free(msg);
11242 return err;
11243 }
11244
11245 /* propagate the instance id and cookie to userspace */
11246 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie,
11247 NL80211_ATTR_PAD))
11248 goto nla_put_failure;
11249
11250 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11251 if (!func_attr)
11252 goto nla_put_failure;
11253
11254 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID,
11255 func->instance_id))
11256 goto nla_put_failure;
11257
11258 nla_nest_end(msg, func_attr);
11259
11260 genlmsg_end(msg, hdr);
11261 return genlmsg_reply(msg, info);
11262
11263nla_put_failure:
11264 nlmsg_free(msg);
11265 return -ENOBUFS;
11266}
11267
11268static int nl80211_nan_del_func(struct sk_buff *skb,
11269 struct genl_info *info)
11270{
11271 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11272 struct wireless_dev *wdev = info->user_ptr[1];
11273 u64 cookie;
11274
11275 if (wdev->iftype != NL80211_IFTYPE_NAN)
11276 return -EOPNOTSUPP;
11277
73c7da3d 11278 if (!wdev_running(wdev))
a442b761
AB		 11279 return -ENOTCONN;
11280
11281 if (!info->attrs[NL80211_ATTR_COOKIE])
11282 return -EINVAL;
11283
11284 if (wdev->owner_nlportid &&
11285 wdev->owner_nlportid != info->snd_portid)
11286 return -ENOTCONN;
11287
11288 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
11289
11290 rdev_del_nan_func(rdev, wdev, cookie);
11291
11292 return 0;
11293}
11294
a5a9dcf2
AB		 11295static int nl80211_nan_change_config(struct sk_buff *skb,
11296 struct genl_info *info)
11297{
11298 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11299 struct wireless_dev *wdev = info->user_ptr[1];
11300 struct cfg80211_nan_conf conf = {};
11301 u32 changed = 0;
11302
11303 if (wdev->iftype != NL80211_IFTYPE_NAN)
11304 return -EOPNOTSUPP;
11305
73c7da3d 11306 if (!wdev_running(wdev))
a5a9dcf2
AB		 11307 return -ENOTCONN;
11308
11309 if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) {
11310 conf.master_pref =
11311 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11312 if (conf.master_pref <= 1 || conf.master_pref == 255)
11313 return -EINVAL;
11314
11315 changed |= CFG80211_NAN_CONF_CHANGED_PREF;
11316 }
11317
8585989d
LC		 11318 if (info->attrs[NL80211_ATTR_BANDS]) {
11319 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11320
11321 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11322 return -EOPNOTSUPP;
11323
11324 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11325 return -EINVAL;
11326
11327 conf.bands = bands;
11328 changed |= CFG80211_NAN_CONF_CHANGED_BANDS;
a5a9dcf2
AB		 11329 }
11330
11331 if (!changed)
11332 return -EINVAL;
11333
11334 return rdev_nan_change_conf(rdev, wdev, &conf, changed);
11335}
11336
50bcd31d
AB		 11337void cfg80211_nan_match(struct wireless_dev *wdev,
11338 struct cfg80211_nan_match_params *match, gfp_t gfp)
11339{
11340 struct wiphy *wiphy = wdev->wiphy;
11341 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11342 struct nlattr *match_attr, *local_func_attr, *peer_func_attr;
11343 struct sk_buff *msg;
11344 void *hdr;
11345
11346 if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr))
11347 return;
11348
11349 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11350 if (!msg)
11351 return;
11352
11353 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH);
11354 if (!hdr) {
11355 nlmsg_free(msg);
11356 return;
11357 }
11358
11359 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11360 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11361 wdev->netdev->ifindex)) ||
11362 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11363 NL80211_ATTR_PAD))
11364 goto nla_put_failure;
11365
11366 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie,
11367 NL80211_ATTR_PAD) ||
11368 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr))
11369 goto nla_put_failure;
11370
11371 match_attr = nla_nest_start(msg, NL80211_ATTR_NAN_MATCH);
11372 if (!match_attr)
11373 goto nla_put_failure;
11374
11375 local_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_LOCAL);
11376 if (!local_func_attr)
11377 goto nla_put_failure;
11378
11379 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id))
11380 goto nla_put_failure;
11381
11382 nla_nest_end(msg, local_func_attr);
11383
11384 peer_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_PEER);
11385 if (!peer_func_attr)
11386 goto nla_put_failure;
11387
11388 if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) ||
11389 nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id))
11390 goto nla_put_failure;
11391
11392 if (match->info && match->info_len &&
11393 nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len,
11394 match->info))
11395 goto nla_put_failure;
11396
11397 nla_nest_end(msg, peer_func_attr);
11398 nla_nest_end(msg, match_attr);
11399 genlmsg_end(msg, hdr);
11400
11401 if (!wdev->owner_nlportid)
11402 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11403 msg, 0, NL80211_MCGRP_NAN, gfp);
11404 else
11405 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11406 wdev->owner_nlportid);
11407
11408 return;
11409
11410nla_put_failure:
11411 nlmsg_free(msg);
11412}
11413EXPORT_SYMBOL(cfg80211_nan_match);
11414
368e5a7b
AB		 11415void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
11416 u8 inst_id,
11417 enum nl80211_nan_func_term_reason reason,
11418 u64 cookie, gfp_t gfp)
11419{
11420 struct wiphy *wiphy = wdev->wiphy;
11421 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11422 struct sk_buff *msg;
11423 struct nlattr *func_attr;
11424 void *hdr;
11425
11426 if (WARN_ON(!inst_id))
11427 return;
11428
11429 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11430 if (!msg)
11431 return;
11432
11433 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION);
11434 if (!hdr) {
11435 nlmsg_free(msg);
11436 return;
11437 }
11438
11439 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11440 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11441 wdev->netdev->ifindex)) ||
11442 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11443 NL80211_ATTR_PAD))
11444 goto nla_put_failure;
11445
11446 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11447 NL80211_ATTR_PAD))
11448 goto nla_put_failure;
11449
11450 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11451 if (!func_attr)
11452 goto nla_put_failure;
11453
11454 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) ||
11455 nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason))
11456 goto nla_put_failure;
11457
11458 nla_nest_end(msg, func_attr);
11459 genlmsg_end(msg, hdr);
11460
11461 if (!wdev->owner_nlportid)
11462 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11463 msg, 0, NL80211_MCGRP_NAN, gfp);
11464 else
11465 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11466 wdev->owner_nlportid);
11467
11468 return;
11469
11470nla_put_failure:
11471 nlmsg_free(msg);
11472}
11473EXPORT_SYMBOL(cfg80211_nan_func_terminated);
11474
3713b4e3
JB		 11475static int nl80211_get_protocol_features(struct sk_buff *skb,
11476 struct genl_info *info)
11477{
11478 void *hdr;
11479 struct sk_buff *msg;
11480
11481 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11482 if (!msg)
11483 return -ENOMEM;
11484
11485 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11486 NL80211_CMD_GET_PROTOCOL_FEATURES);
11487 if (!hdr)
11488 goto nla_put_failure;
11489
11490 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
11491 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
11492 goto nla_put_failure;
11493
11494 genlmsg_end(msg, hdr);
11495 return genlmsg_reply(msg, info);
11496
11497 nla_put_failure:
11498 kfree_skb(msg);
11499 return -ENOBUFS;
11500}
11501
355199e0
JM		 11502static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
11503{
11504 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11505 struct cfg80211_update_ft_ies_params ft_params;
11506 struct net_device *dev = info->user_ptr[1];
11507
11508 if (!rdev->ops->update_ft_ies)
11509 return -EOPNOTSUPP;
11510
11511 if (!info->attrs[NL80211_ATTR_MDID] ||
11512 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
11513 return -EINVAL;
11514
11515 memset(&ft_params, 0, sizeof(ft_params));
11516 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
11517 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
11518 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
11519
11520 return rdev_update_ft_ies(rdev, dev, &ft_params);
11521}
11522
5de17984
AS		 11523static int nl80211_crit_protocol_start(struct sk_buff *skb,
11524 struct genl_info *info)
11525{
11526 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11527 struct wireless_dev *wdev = info->user_ptr[1];
11528 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
11529 u16 duration;
11530 int ret;
11531
11532 if (!rdev->ops->crit_proto_start)
11533 return -EOPNOTSUPP;
11534
11535 if (WARN_ON(!rdev->ops->crit_proto_stop))
11536 return -EINVAL;
11537
11538 if (rdev->crit_proto_nlportid)
11539 return -EBUSY;
11540
11541 /* determine protocol if provided */
11542 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
11543 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
11544
11545 if (proto >= NUM_NL80211_CRIT_PROTO)
11546 return -EINVAL;
11547
11548 /* timeout must be provided */
11549 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
11550 return -EINVAL;
11551
11552 duration =
11553 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
11554
11555 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
11556 return -ERANGE;
11557
11558 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
11559 if (!ret)
11560 rdev->crit_proto_nlportid = info->snd_portid;
11561
11562 return ret;
11563}
11564
11565static int nl80211_crit_protocol_stop(struct sk_buff *skb,
11566 struct genl_info *info)
11567{
11568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11569 struct wireless_dev *wdev = info->user_ptr[1];
11570
11571 if (!rdev->ops->crit_proto_stop)
11572 return -EOPNOTSUPP;
11573
11574 if (rdev->crit_proto_nlportid) {
11575 rdev->crit_proto_nlportid = 0;
11576 rdev_crit_proto_stop(rdev, wdev);
11577 }
11578 return 0;
11579}
11580
ad7e718c
JB		 11581static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
11582{
11583 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11584 struct wireless_dev *wdev =
11585 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
11586 int i, err;
11587 u32 vid, subcmd;
11588
11589 if (!rdev->wiphy.vendor_commands)
11590 return -EOPNOTSUPP;
11591
11592 if (IS_ERR(wdev)) {
11593 err = PTR_ERR(wdev);
11594 if (err != -EINVAL)
11595 return err;
11596 wdev = NULL;
11597 } else if (wdev->wiphy != &rdev->wiphy) {
11598 return -EINVAL;
11599 }
11600
11601 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
11602 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
11603 return -EINVAL;
11604
11605 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
11606 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
11607 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
11608 const struct wiphy_vendor_command *vcmd;
11609 void *data = NULL;
11610 int len = 0;
11611
11612 vcmd = &rdev->wiphy.vendor_commands[i];
11613
11614 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11615 continue;
11616
11617 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11618 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11619 if (!wdev)
11620 return -EINVAL;
11621 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11622 !wdev->netdev)
11623 return -EINVAL;
11624
11625 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
73c7da3d 11626 if (!wdev_running(wdev))
ad7e718c
JB		 11627 return -ENETDOWN;
11628 }
7bdbe400
JB		 11629
11630 if (!vcmd->doit)
11631 return -EOPNOTSUPP;
ad7e718c
JB		 11632 } else {
11633 wdev = NULL;
11634 }
11635
11636 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
11637 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11638 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11639 }
11640
11641 rdev->cur_cmd_info = info;
11642 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
11643 data, len);
11644 rdev->cur_cmd_info = NULL;
11645 return err;
11646 }
11647
11648 return -EOPNOTSUPP;
11649}
11650
7bdbe400
JB		 11651static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
11652 struct netlink_callback *cb,
11653 struct cfg80211_registered_device **rdev,
11654 struct wireless_dev **wdev)
11655{
c90c39da 11656 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
7bdbe400
JB		 11657 u32 vid, subcmd;
11658 unsigned int i;
11659 int vcmd_idx = -1;
11660 int err;
11661 void *data = NULL;
11662 unsigned int data_len = 0;
11663
11664 rtnl_lock();
11665
11666 if (cb->args[0]) {
11667 /* subtract the 1 again here */
11668 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
11669 struct wireless_dev *tmp;
11670
11671 if (!wiphy) {
11672 err = -ENODEV;
11673 goto out_unlock;
11674 }
11675 *rdev = wiphy_to_rdev(wiphy);
11676 *wdev = NULL;
11677
11678 if (cb->args[1]) {
53873f13 11679 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
7bdbe400
JB		 11680 if (tmp->identifier == cb->args[1] - 1) {
11681 *wdev = tmp;
11682 break;
11683 }
11684 }
11685 }
11686
11687 /* keep rtnl locked in successful case */
11688 return 0;
11689 }
11690
11691 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
c90c39da 11692 attrbuf, nl80211_fam.maxattr, nl80211_policy);
7bdbe400
JB		 11693 if (err)
11694 goto out_unlock;
11695
c90c39da
JB		 11696 if (!attrbuf[NL80211_ATTR_VENDOR_ID] ||
11697 !attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
7bdbe400
JB		 11698 err = -EINVAL;
11699 goto out_unlock;
11700 }
11701
c90c39da 11702 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), attrbuf);
7bdbe400
JB		 11703 if (IS_ERR(*wdev))
11704 *wdev = NULL;
11705
c90c39da 11706 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
7bdbe400
JB		 11707 if (IS_ERR(*rdev)) {
11708 err = PTR_ERR(*rdev);
11709 goto out_unlock;
11710 }
11711
c90c39da
JB		 11712 vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]);
11713 subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
7bdbe400
JB		 11714
11715 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
11716 const struct wiphy_vendor_command *vcmd;
11717
11718 vcmd = &(*rdev)->wiphy.vendor_commands[i];
11719
11720 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11721 continue;
11722
11723 if (!vcmd->dumpit) {
11724 err = -EOPNOTSUPP;
11725 goto out_unlock;
11726 }
11727
11728 vcmd_idx = i;
11729 break;
11730 }
11731
11732 if (vcmd_idx < 0) {
11733 err = -EOPNOTSUPP;
11734 goto out_unlock;
11735 }
11736
c90c39da
JB		 11737 if (attrbuf[NL80211_ATTR_VENDOR_DATA]) {
11738 data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]);
11739 data_len = nla_len(attrbuf[NL80211_ATTR_VENDOR_DATA]);
7bdbe400
JB		 11740 }
11741
11742 /* 0 is the first index - add 1 to parse only once */
11743 cb->args[0] = (*rdev)->wiphy_idx + 1;
11744 /* add 1 to know if it was NULL */
11745 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
11746 cb->args[2] = vcmd_idx;
11747 cb->args[3] = (unsigned long)data;
11748 cb->args[4] = data_len;
11749
11750 /* keep rtnl locked in successful case */
11751 return 0;
11752 out_unlock:
11753 rtnl_unlock();
11754 return err;
11755}
11756
11757static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
11758 struct netlink_callback *cb)
11759{
11760 struct cfg80211_registered_device *rdev;
11761 struct wireless_dev *wdev;
11762 unsigned int vcmd_idx;
11763 const struct wiphy_vendor_command *vcmd;
11764 void *data;
11765 int data_len;
11766 int err;
11767 struct nlattr *vendor_data;
11768
11769 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
11770 if (err)
11771 return err;
11772
11773 vcmd_idx = cb->args[2];
11774 data = (void *)cb->args[3];
11775 data_len = cb->args[4];
11776 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
11777
11778 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11779 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11780 if (!wdev)
11781 return -EINVAL;
11782 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11783 !wdev->netdev)
11784 return -EINVAL;
11785
11786 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
73c7da3d 11787 if (!wdev_running(wdev))
7bdbe400
JB		 11788 return -ENETDOWN;
11789 }
11790 }
11791
11792 while (1) {
11793 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
11794 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11795 NL80211_CMD_VENDOR);
11796 if (!hdr)
11797 break;
11798
11799 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 11800 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
11801 wdev_id(wdev),
11802 NL80211_ATTR_PAD))) {
7bdbe400
JB		 11803 genlmsg_cancel(skb, hdr);
11804 break;
11805 }
11806
11807 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
11808 if (!vendor_data) {
11809 genlmsg_cancel(skb, hdr);
11810 break;
11811 }
11812
11813 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
11814 (unsigned long *)&cb->args[5]);
11815 nla_nest_end(skb, vendor_data);
11816
11817 if (err == -ENOBUFS || err == -ENOENT) {
11818 genlmsg_cancel(skb, hdr);
11819 break;
11820 } else if (err) {
11821 genlmsg_cancel(skb, hdr);
11822 goto out;
11823 }
11824
11825 genlmsg_end(skb, hdr);
11826 }
11827
11828 err = skb->len;
11829 out:
11830 rtnl_unlock();
11831 return err;
11832}
11833
ad7e718c
JB		 11834struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
11835 enum nl80211_commands cmd,
11836 enum nl80211_attrs attr,
11837 int approxlen)
11838{
f26cbf40 11839 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 11840
11841 if (WARN_ON(!rdev->cur_cmd_info))
11842 return NULL;
11843
6c09e791 11844 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 11845 rdev->cur_cmd_info->snd_portid,
11846 rdev->cur_cmd_info->snd_seq,
567ffc35 11847 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 11848}
11849EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
11850
11851int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
11852{
11853 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
11854 void *hdr = ((void **)skb->cb)[1];
11855 struct nlattr *data = ((void **)skb->cb)[2];
11856
bd8c78e7
JB		 11857 /* clear CB data for netlink core to own from now on */
11858 memset(skb->cb, 0, sizeof(skb->cb));
11859
ad7e718c
JB		 11860 if (WARN_ON(!rdev->cur_cmd_info)) {
11861 kfree_skb(skb);
11862 return -EINVAL;
11863 }
11864
11865 nla_nest_end(skb, data);
11866 genlmsg_end(skb, hdr);
11867 return genlmsg_reply(skb, rdev->cur_cmd_info);
11868}
11869EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
11870
fa9ffc74
KP		 11871static int nl80211_set_qos_map(struct sk_buff *skb,
11872 struct genl_info *info)
11873{
11874 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11875 struct cfg80211_qos_map *qos_map = NULL;
11876 struct net_device *dev = info->user_ptr[1];
11877 u8 *pos, len, num_des, des_len, des;
11878 int ret;
11879
11880 if (!rdev->ops->set_qos_map)
11881 return -EOPNOTSUPP;
11882
11883 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
11884 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
11885 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
11886
11887 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
11888 len > IEEE80211_QOS_MAP_LEN_MAX)
11889 return -EINVAL;
11890
11891 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
11892 if (!qos_map)
11893 return -ENOMEM;
11894
11895 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
11896 if (num_des) {
11897 des_len = num_des *
11898 sizeof(struct cfg80211_dscp_exception);
11899 memcpy(qos_map->dscp_exception, pos, des_len);
11900 qos_map->num_des = num_des;
11901 for (des = 0; des < num_des; des++) {
11902 if (qos_map->dscp_exception[des].up > 7) {
11903 kfree(qos_map);
11904 return -EINVAL;
11905 }
11906 }
11907 pos += des_len;
11908 }
11909 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
11910 }
11911
11912 wdev_lock(dev->ieee80211_ptr);
11913 ret = nl80211_key_allowed(dev->ieee80211_ptr);
11914 if (!ret)
11915 ret = rdev_set_qos_map(rdev, dev, qos_map);
11916 wdev_unlock(dev->ieee80211_ptr);
11917
11918 kfree(qos_map);
11919 return ret;
11920}
11921
960d01ac
JB		 11922static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
11923{
11924 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11925 struct net_device *dev = info->user_ptr[1];
11926 struct wireless_dev *wdev = dev->ieee80211_ptr;
11927 const u8 *peer;
11928 u8 tsid, up;
11929 u16 admitted_time = 0;
11930 int err;
11931
723e73ac 11932 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 11933 return -EOPNOTSUPP;
11934
11935 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
11936 !info->attrs[NL80211_ATTR_USER_PRIO])
11937 return -EINVAL;
11938
11939 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
11940 if (tsid >= IEEE80211_NUM_TIDS)
11941 return -EINVAL;
11942
11943 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
11944 if (up >= IEEE80211_NUM_UPS)
11945 return -EINVAL;
11946
11947 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 11948 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 11949 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 11950 * need more attributes for that (e.g. BA session requirement);
11951 * change the WMM adminssion test above to allow both then
960d01ac
JB		 11952 */
11953 return -EINVAL;
11954 }
11955
11956 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11957
11958 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
11959 admitted_time =
11960 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
11961 if (!admitted_time)
11962 return -EINVAL;
11963 }
11964
11965 wdev_lock(wdev);
11966 switch (wdev->iftype) {
11967 case NL80211_IFTYPE_STATION:
11968 case NL80211_IFTYPE_P2P_CLIENT:
11969 if (wdev->current_bss)
11970 break;
11971 err = -ENOTCONN;
11972 goto out;
11973 default:
11974 err = -EOPNOTSUPP;
11975 goto out;
11976 }
11977
11978 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
11979
11980 out:
11981 wdev_unlock(wdev);
11982 return err;
11983}
11984
11985static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
11986{
11987 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11988 struct net_device *dev = info->user_ptr[1];
11989 struct wireless_dev *wdev = dev->ieee80211_ptr;
11990 const u8 *peer;
11991 u8 tsid;
11992 int err;
11993
11994 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
11995 return -EINVAL;
11996
11997 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
11998 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11999
12000 wdev_lock(wdev);
12001 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
12002 wdev_unlock(wdev);
12003
12004 return err;
12005}
12006
1057d35e
AN		 12007static int nl80211_tdls_channel_switch(struct sk_buff *skb,
12008 struct genl_info *info)
12009{
12010 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12011 struct net_device *dev = info->user_ptr[1];
12012 struct wireless_dev *wdev = dev->ieee80211_ptr;
12013 struct cfg80211_chan_def chandef = {};
12014 const u8 *addr;
12015 u8 oper_class;
12016 int err;
12017
12018 if (!rdev->ops->tdls_channel_switch ||
12019 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12020 return -EOPNOTSUPP;
12021
12022 switch (dev->ieee80211_ptr->iftype) {
12023 case NL80211_IFTYPE_STATION:
12024 case NL80211_IFTYPE_P2P_CLIENT:
12025 break;
12026 default:
12027 return -EOPNOTSUPP;
12028 }
12029
12030 if (!info->attrs[NL80211_ATTR_MAC] ||
12031 !info->attrs[NL80211_ATTR_OPER_CLASS])
12032 return -EINVAL;
12033
12034 err = nl80211_parse_chandef(rdev, info, &chandef);
12035 if (err)
12036 return err;
12037
12038 /*
12039 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
12040 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
12041 * specification is not defined for them.
12042 */
57fbcce3 12043 if (chandef.chan->band == NL80211_BAND_2GHZ &&
1057d35e
AN		 12044 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
12045 chandef.width != NL80211_CHAN_WIDTH_20)
12046 return -EINVAL;
12047
12048 /* we will be active on the TDLS link */
923b352f
AN		 12049 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
12050 wdev->iftype))
1057d35e
AN		 12051 return -EINVAL;
12052
12053 /* don't allow switching to DFS channels */
12054 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
12055 return -EINVAL;
12056
12057 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12058 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
12059
12060 wdev_lock(wdev);
12061 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
12062 wdev_unlock(wdev);
12063
12064 return err;
12065}
12066
12067static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
12068 struct genl_info *info)
12069{
12070 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12071 struct net_device *dev = info->user_ptr[1];
12072 struct wireless_dev *wdev = dev->ieee80211_ptr;
12073 const u8 *addr;
12074
12075 if (!rdev->ops->tdls_channel_switch ||
12076 !rdev->ops->tdls_cancel_channel_switch ||
12077 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12078 return -EOPNOTSUPP;
12079
12080 switch (dev->ieee80211_ptr->iftype) {
12081 case NL80211_IFTYPE_STATION:
12082 case NL80211_IFTYPE_P2P_CLIENT:
12083 break;
12084 default:
12085 return -EOPNOTSUPP;
12086 }
12087
12088 if (!info->attrs[NL80211_ATTR_MAC])
12089 return -EINVAL;
12090
12091 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12092
12093 wdev_lock(wdev);
12094 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
12095 wdev_unlock(wdev);
12096
12097 return 0;
12098}
12099
ce0ce13a
MB		 12100static int nl80211_set_multicast_to_unicast(struct sk_buff *skb,
12101 struct genl_info *info)
12102{
12103 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12104 struct net_device *dev = info->user_ptr[1];
12105 struct wireless_dev *wdev = dev->ieee80211_ptr;
12106 const struct nlattr *nla;
12107 bool enabled;
12108
ce0ce13a
MB		 12109 if (!rdev->ops->set_multicast_to_unicast)
12110 return -EOPNOTSUPP;
12111
12112 if (wdev->iftype != NL80211_IFTYPE_AP &&
12113 wdev->iftype != NL80211_IFTYPE_P2P_GO)
12114 return -EOPNOTSUPP;
12115
12116 nla = info->attrs[NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED];
12117 enabled = nla_get_flag(nla);
12118
12119 return rdev_set_multicast_to_unicast(rdev, dev, enabled);
12120}
12121
4c476991
JB		 12122#define NL80211_FLAG_NEED_WIPHY 0x01
12123#define NL80211_FLAG_NEED_NETDEV 0x02
12124#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 12125#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
12126#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
12127 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 12128#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 12129/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 12130#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
12131 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 12132#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 12133
f84f771d 12134static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 12135 struct genl_info *info)
12136{
12137 struct cfg80211_registered_device *rdev;
89a54e48 12138 struct wireless_dev *wdev;
4c476991 12139 struct net_device *dev;
4c476991
JB		 12140 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
12141
12142 if (rtnl)
12143 rtnl_lock();
12144
12145 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 12146 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 12147 if (IS_ERR(rdev)) {
12148 if (rtnl)
12149 rtnl_unlock();
12150 return PTR_ERR(rdev);
12151 }
12152 info->user_ptr[0] = rdev;
1bf614ef
JB		 12153 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
12154 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 12155 ASSERT_RTNL();
12156
89a54e48
JB		 12157 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
12158 info->attrs);
12159 if (IS_ERR(wdev)) {
4c476991
JB		 12160 if (rtnl)
12161 rtnl_unlock();
89a54e48 12162 return PTR_ERR(wdev);
4c476991 12163 }
89a54e48 12164
89a54e48 12165 dev = wdev->netdev;
f26cbf40 12166 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 12167
1bf614ef
JB		 12168 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
12169 if (!dev) {
1bf614ef
JB		 12170 if (rtnl)
12171 rtnl_unlock();
12172 return -EINVAL;
12173 }
12174
12175 info->user_ptr[1] = dev;
12176 } else {
12177 info->user_ptr[1] = wdev;
41265714 12178 }
1bf614ef 12179
73c7da3d
AVS		 12180 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
12181 !wdev_running(wdev)) {
12182 if (rtnl)
12183 rtnl_unlock();
12184 return -ENETDOWN;
12185 }
1bf614ef 12186
73c7da3d 12187 if (dev)
1bf614ef 12188 dev_hold(dev);
89a54e48 12189
4c476991 12190 info->user_ptr[0] = rdev;
4c476991
JB		 12191 }
12192
12193 return 0;
12194}
12195
f84f771d 12196static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 12197 struct genl_info *info)
12198{
1bf614ef
JB		 12199 if (info->user_ptr[1]) {
12200 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
12201 struct wireless_dev *wdev = info->user_ptr[1];
12202
12203 if (wdev->netdev)
12204 dev_put(wdev->netdev);
12205 } else {
12206 dev_put(info->user_ptr[1]);
12207 }
12208 }
5393b917 12209
4c476991
JB		 12210 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
12211 rtnl_unlock();
5393b917
JB		 12212
12213 /* If needed, clear the netlink message payload from the SKB
12214 * as it might contain key data that shouldn't stick around on
12215 * the heap after the SKB is freed. The netlink message header
12216 * is still needed for further processing, so leave it intact.
12217 */
12218 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
12219 struct nlmsghdr *nlh = nlmsg_hdr(skb);
12220
12221 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
12222 }
4c476991
JB		 12223}
12224
4534de83 12225static const struct genl_ops nl80211_ops[] = {
55682965
JB		 12226 {
12227 .cmd = NL80211_CMD_GET_WIPHY,
12228 .doit = nl80211_get_wiphy,
12229 .dumpit = nl80211_dump_wiphy,
86e8cf98 12230 .done = nl80211_dump_wiphy_done,
55682965
JB		 12231 .policy = nl80211_policy,
12232 /* can be retrieved by unprivileged users */
5fe231e8
JB		 12233 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12234 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12235 },
12236 {
12237 .cmd = NL80211_CMD_SET_WIPHY,
12238 .doit = nl80211_set_wiphy,
12239 .policy = nl80211_policy,
5617c6cd 12240 .flags = GENL_UNS_ADMIN_PERM,
4c476991 12241 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 12242 },
12243 {
12244 .cmd = NL80211_CMD_GET_INTERFACE,
12245 .doit = nl80211_get_interface,
12246 .dumpit = nl80211_dump_interface,
12247 .policy = nl80211_policy,
12248 /* can be retrieved by unprivileged users */
5fe231e8
JB		 12249 .internal_flags = NL80211_FLAG_NEED_WDEV |
12250 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12251 },
12252 {
12253 .cmd = NL80211_CMD_SET_INTERFACE,
12254 .doit = nl80211_set_interface,
12255 .policy = nl80211_policy,
5617c6cd 12256 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12257 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12258 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12259 },
12260 {
12261 .cmd = NL80211_CMD_NEW_INTERFACE,
12262 .doit = nl80211_new_interface,
12263 .policy = nl80211_policy,
5617c6cd 12264 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12265 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12266 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12267 },
12268 {
12269 .cmd = NL80211_CMD_DEL_INTERFACE,
12270 .doit = nl80211_del_interface,
12271 .policy = nl80211_policy,
5617c6cd 12272 .flags = GENL_UNS_ADMIN_PERM,
84efbb84 12273 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 12274 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 12275 },
12276 {
12277 .cmd = NL80211_CMD_GET_KEY,
12278 .doit = nl80211_get_key,
12279 .policy = nl80211_policy,
5617c6cd 12280 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12281 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12282 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 12283 },
12284 {
12285 .cmd = NL80211_CMD_SET_KEY,
12286 .doit = nl80211_set_key,
12287 .policy = nl80211_policy,
5617c6cd 12288 .flags = GENL_UNS_ADMIN_PERM,
41265714 12289 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12290 NL80211_FLAG_NEED_RTNL |
12291 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 12292 },
12293 {
12294 .cmd = NL80211_CMD_NEW_KEY,
12295 .doit = nl80211_new_key,
12296 .policy = nl80211_policy,
5617c6cd 12297 .flags = GENL_UNS_ADMIN_PERM,
41265714 12298 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12299 NL80211_FLAG_NEED_RTNL |
12300 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 12301 },
12302 {
12303 .cmd = NL80211_CMD_DEL_KEY,
12304 .doit = nl80211_del_key,
12305 .policy = nl80211_policy,
5617c6cd 12306 .flags = GENL_UNS_ADMIN_PERM,
41265714 12307 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12308 NL80211_FLAG_NEED_RTNL,
55682965 12309 },
ed1b6cc7
JB		 12310 {
12311 .cmd = NL80211_CMD_SET_BEACON,
12312 .policy = nl80211_policy,
5617c6cd 12313 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12314 .doit = nl80211_set_beacon,
2b5f8b0b 12315 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12316 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 12317 },
12318 {
8860020e 12319 .cmd = NL80211_CMD_START_AP,
ed1b6cc7 12320 .policy = nl80211_policy,
5617c6cd 12321 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12322 .doit = nl80211_start_ap,
2b5f8b0b 12323 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12324 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 12325 },
12326 {
8860020e 12327 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7 12328 .policy = nl80211_policy,
5617c6cd 12329 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12330 .doit = nl80211_stop_ap,
2b5f8b0b 12331 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12332 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 12333 },
5727ef1b
JB		 12334 {
12335 .cmd = NL80211_CMD_GET_STATION,
12336 .doit = nl80211_get_station,
2ec600d6 12337 .dumpit = nl80211_dump_station,
5727ef1b 12338 .policy = nl80211_policy,
4c476991
JB		 12339 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12340 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12341 },
12342 {
12343 .cmd = NL80211_CMD_SET_STATION,
12344 .doit = nl80211_set_station,
12345 .policy = nl80211_policy,
5617c6cd 12346 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12347 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12348 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12349 },
12350 {
12351 .cmd = NL80211_CMD_NEW_STATION,
12352 .doit = nl80211_new_station,
12353 .policy = nl80211_policy,
5617c6cd 12354 .flags = GENL_UNS_ADMIN_PERM,
41265714 12355 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12356 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12357 },
12358 {
12359 .cmd = NL80211_CMD_DEL_STATION,
12360 .doit = nl80211_del_station,
12361 .policy = nl80211_policy,
5617c6cd 12362 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12363 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12364 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12365 },
12366 {
12367 .cmd = NL80211_CMD_GET_MPATH,
12368 .doit = nl80211_get_mpath,
12369 .dumpit = nl80211_dump_mpath,
12370 .policy = nl80211_policy,
5617c6cd 12371 .flags = GENL_UNS_ADMIN_PERM,
41265714 12372 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12373 NL80211_FLAG_NEED_RTNL,
2ec600d6 12374 },
66be7d2b
HR		 12375 {
12376 .cmd = NL80211_CMD_GET_MPP,
12377 .doit = nl80211_get_mpp,
12378 .dumpit = nl80211_dump_mpp,
12379 .policy = nl80211_policy,
5617c6cd 12380 .flags = GENL_UNS_ADMIN_PERM,
66be7d2b
HR		 12381 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12382 NL80211_FLAG_NEED_RTNL,
12383 },
2ec600d6
LCC		 12384 {
12385 .cmd = NL80211_CMD_SET_MPATH,
12386 .doit = nl80211_set_mpath,
12387 .policy = nl80211_policy,
5617c6cd 12388 .flags = GENL_UNS_ADMIN_PERM,
41265714 12389 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12390 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12391 },
12392 {
12393 .cmd = NL80211_CMD_NEW_MPATH,
12394 .doit = nl80211_new_mpath,
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,
2ec600d6
LCC		 12399 },
12400 {
12401 .cmd = NL80211_CMD_DEL_MPATH,
12402 .doit = nl80211_del_mpath,
12403 .policy = nl80211_policy,
5617c6cd 12404 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12405 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12406 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 12407 },
12408 {
12409 .cmd = NL80211_CMD_SET_BSS,
12410 .doit = nl80211_set_bss,
12411 .policy = nl80211_policy,
5617c6cd 12412 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12413 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12414 NL80211_FLAG_NEED_RTNL,
b2e1b302 12415 },
f130347c
LR		 12416 {
12417 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 12418 .doit = nl80211_get_reg_do,
12419 .dumpit = nl80211_get_reg_dump,
f130347c 12420 .policy = nl80211_policy,
5fe231e8 12421 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 12422 /* can be retrieved by unprivileged users */
12423 },
b6863036 12424#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 12425 {
12426 .cmd = NL80211_CMD_SET_REG,
12427 .doit = nl80211_set_reg,
12428 .policy = nl80211_policy,
12429 .flags = GENL_ADMIN_PERM,
5fe231e8 12430 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 12431 },
b6863036 12432#endif
b2e1b302
LR		 12433 {
12434 .cmd = NL80211_CMD_REQ_SET_REG,
12435 .doit = nl80211_req_set_reg,
12436 .policy = nl80211_policy,
93da9cc1 12437 .flags = GENL_ADMIN_PERM,
12438 },
12439 {
24bdd9f4
JC		 12440 .cmd = NL80211_CMD_GET_MESH_CONFIG,
12441 .doit = nl80211_get_mesh_config,
93da9cc1 12442 .policy = nl80211_policy,
12443 /* can be retrieved by unprivileged users */
2b5f8b0b 12444 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12445 NL80211_FLAG_NEED_RTNL,
93da9cc1 12446 },
12447 {
24bdd9f4
JC		 12448 .cmd = NL80211_CMD_SET_MESH_CONFIG,
12449 .doit = nl80211_update_mesh_config,
93da9cc1 12450 .policy = nl80211_policy,
5617c6cd 12451 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c 12452 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12453 NL80211_FLAG_NEED_RTNL,
9aed3cc1 12454 },
2a519311
JB		 12455 {
12456 .cmd = NL80211_CMD_TRIGGER_SCAN,
12457 .doit = nl80211_trigger_scan,
12458 .policy = nl80211_policy,
5617c6cd 12459 .flags = GENL_UNS_ADMIN_PERM,
fd014284 12460 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12461 NL80211_FLAG_NEED_RTNL,
2a519311 12462 },
91d3ab46
VK		 12463 {
12464 .cmd = NL80211_CMD_ABORT_SCAN,
12465 .doit = nl80211_abort_scan,
12466 .policy = nl80211_policy,
5617c6cd 12467 .flags = GENL_UNS_ADMIN_PERM,
91d3ab46
VK		 12468 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12469 NL80211_FLAG_NEED_RTNL,
12470 },
2a519311
JB		 12471 {
12472 .cmd = NL80211_CMD_GET_SCAN,
12473 .policy = nl80211_policy,
12474 .dumpit = nl80211_dump_scan,
12475 },
807f8a8c
LC		 12476 {
12477 .cmd = NL80211_CMD_START_SCHED_SCAN,
12478 .doit = nl80211_start_sched_scan,
12479 .policy = nl80211_policy,
5617c6cd 12480 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 12481 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12482 NL80211_FLAG_NEED_RTNL,
12483 },
12484 {
12485 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
12486 .doit = nl80211_stop_sched_scan,
12487 .policy = nl80211_policy,
5617c6cd 12488 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 12489 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12490 NL80211_FLAG_NEED_RTNL,
12491 },
636a5d36
JM		 12492 {
12493 .cmd = NL80211_CMD_AUTHENTICATE,
12494 .doit = nl80211_authenticate,
12495 .policy = nl80211_policy,
5617c6cd 12496 .flags = GENL_UNS_ADMIN_PERM,
41265714 12497 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12498 NL80211_FLAG_NEED_RTNL |
12499 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 12500 },
12501 {
12502 .cmd = NL80211_CMD_ASSOCIATE,
12503 .doit = nl80211_associate,
12504 .policy = nl80211_policy,
5617c6cd 12505 .flags = GENL_UNS_ADMIN_PERM,
41265714 12506 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12507 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 12508 },
12509 {
12510 .cmd = NL80211_CMD_DEAUTHENTICATE,
12511 .doit = nl80211_deauthenticate,
12512 .policy = nl80211_policy,
5617c6cd 12513 .flags = GENL_UNS_ADMIN_PERM,
41265714 12514 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12515 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 12516 },
12517 {
12518 .cmd = NL80211_CMD_DISASSOCIATE,
12519 .doit = nl80211_disassociate,
12520 .policy = nl80211_policy,
5617c6cd 12521 .flags = GENL_UNS_ADMIN_PERM,
41265714 12522 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12523 NL80211_FLAG_NEED_RTNL,
636a5d36 12524 },
04a773ad
JB		 12525 {
12526 .cmd = NL80211_CMD_JOIN_IBSS,
12527 .doit = nl80211_join_ibss,
12528 .policy = nl80211_policy,
5617c6cd 12529 .flags = GENL_UNS_ADMIN_PERM,
41265714 12530 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12531 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 12532 },
12533 {
12534 .cmd = NL80211_CMD_LEAVE_IBSS,
12535 .doit = nl80211_leave_ibss,
12536 .policy = nl80211_policy,
5617c6cd 12537 .flags = GENL_UNS_ADMIN_PERM,
41265714 12538 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12539 NL80211_FLAG_NEED_RTNL,
04a773ad 12540 },
aff89a9b
JB		 12541#ifdef CONFIG_NL80211_TESTMODE
12542 {
12543 .cmd = NL80211_CMD_TESTMODE,
12544 .doit = nl80211_testmode_do,
71063f0e 12545 .dumpit = nl80211_testmode_dump,
aff89a9b 12546 .policy = nl80211_policy,
5617c6cd 12547 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12548 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12549 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 12550 },
12551#endif
b23aa676
SO		 12552 {
12553 .cmd = NL80211_CMD_CONNECT,
12554 .doit = nl80211_connect,
12555 .policy = nl80211_policy,
5617c6cd 12556 .flags = GENL_UNS_ADMIN_PERM,
41265714 12557 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12558 NL80211_FLAG_NEED_RTNL,
b23aa676 12559 },
088e8df8 12560 {
12561 .cmd = NL80211_CMD_UPDATE_CONNECT_PARAMS,
12562 .doit = nl80211_update_connect_params,
12563 .policy = nl80211_policy,
12564 .flags = GENL_ADMIN_PERM,
12565 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12566 NL80211_FLAG_NEED_RTNL,
12567 },
b23aa676
SO		 12568 {
12569 .cmd = NL80211_CMD_DISCONNECT,
12570 .doit = nl80211_disconnect,
12571 .policy = nl80211_policy,
5617c6cd 12572 .flags = GENL_UNS_ADMIN_PERM,
41265714 12573 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12574 NL80211_FLAG_NEED_RTNL,
b23aa676 12575 },
463d0183
JB		 12576 {
12577 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
12578 .doit = nl80211_wiphy_netns,
12579 .policy = nl80211_policy,
5617c6cd 12580 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12581 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12582 NL80211_FLAG_NEED_RTNL,
463d0183 12583 },
61fa713c
HS		 12584 {
12585 .cmd = NL80211_CMD_GET_SURVEY,
12586 .policy = nl80211_policy,
12587 .dumpit = nl80211_dump_survey,
12588 },
67fbb16b
SO		 12589 {
12590 .cmd = NL80211_CMD_SET_PMKSA,
12591 .doit = nl80211_setdel_pmksa,
12592 .policy = nl80211_policy,
5617c6cd 12593 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12594 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12595 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 12596 },
12597 {
12598 .cmd = NL80211_CMD_DEL_PMKSA,
12599 .doit = nl80211_setdel_pmksa,
12600 .policy = nl80211_policy,
5617c6cd 12601 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12602 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12603 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 12604 },
12605 {
12606 .cmd = NL80211_CMD_FLUSH_PMKSA,
12607 .doit = nl80211_flush_pmksa,
12608 .policy = nl80211_policy,
5617c6cd 12609 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12610 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12611 NL80211_FLAG_NEED_RTNL,
67fbb16b 12612 },
9588bbd5
JM		 12613 {
12614 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
12615 .doit = nl80211_remain_on_channel,
12616 .policy = nl80211_policy,
5617c6cd 12617 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12618 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12619 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 12620 },
12621 {
12622 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12623 .doit = nl80211_cancel_remain_on_channel,
12624 .policy = nl80211_policy,
5617c6cd 12625 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12626 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12627 NL80211_FLAG_NEED_RTNL,
9588bbd5 12628 },
13ae75b1
JM		 12629 {
12630 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
12631 .doit = nl80211_set_tx_bitrate_mask,
12632 .policy = nl80211_policy,
5617c6cd 12633 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12634 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12635 NL80211_FLAG_NEED_RTNL,
13ae75b1 12636 },
026331c4 12637 {
2e161f78
JB		 12638 .cmd = NL80211_CMD_REGISTER_FRAME,
12639 .doit = nl80211_register_mgmt,
026331c4 12640 .policy = nl80211_policy,
5617c6cd 12641 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12642 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 12643 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 12644 },
12645 {
2e161f78
JB		 12646 .cmd = NL80211_CMD_FRAME,
12647 .doit = nl80211_tx_mgmt,
026331c4 12648 .policy = nl80211_policy,
5617c6cd 12649 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12650 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 12651 NL80211_FLAG_NEED_RTNL,
12652 },
12653 {
12654 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
12655 .doit = nl80211_tx_mgmt_cancel_wait,
12656 .policy = nl80211_policy,
5617c6cd 12657 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12658 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12659 NL80211_FLAG_NEED_RTNL,
026331c4 12660 },
ffb9eb3d
KV		 12661 {
12662 .cmd = NL80211_CMD_SET_POWER_SAVE,
12663 .doit = nl80211_set_power_save,
12664 .policy = nl80211_policy,
5617c6cd 12665 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12666 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12667 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 12668 },
12669 {
12670 .cmd = NL80211_CMD_GET_POWER_SAVE,
12671 .doit = nl80211_get_power_save,
12672 .policy = nl80211_policy,
12673 /* can be retrieved by unprivileged users */
4c476991
JB		 12674 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12675 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 12676 },
d6dc1a38
JO		 12677 {
12678 .cmd = NL80211_CMD_SET_CQM,
12679 .doit = nl80211_set_cqm,
12680 .policy = nl80211_policy,
5617c6cd 12681 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12682 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12683 NL80211_FLAG_NEED_RTNL,
d6dc1a38 12684 },
f444de05
JB		 12685 {
12686 .cmd = NL80211_CMD_SET_CHANNEL,
12687 .doit = nl80211_set_channel,
12688 .policy = nl80211_policy,
5617c6cd 12689 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12690 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12691 NL80211_FLAG_NEED_RTNL,
f444de05 12692 },
e8347eba
BJ		 12693 {
12694 .cmd = NL80211_CMD_SET_WDS_PEER,
12695 .doit = nl80211_set_wds_peer,
12696 .policy = nl80211_policy,
5617c6cd 12697 .flags = GENL_UNS_ADMIN_PERM,
43b19952
JB		 12698 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12699 NL80211_FLAG_NEED_RTNL,
e8347eba 12700 },
29cbe68c
JB		 12701 {
12702 .cmd = NL80211_CMD_JOIN_MESH,
12703 .doit = nl80211_join_mesh,
12704 .policy = nl80211_policy,
5617c6cd 12705 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 12706 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12707 NL80211_FLAG_NEED_RTNL,
12708 },
12709 {
12710 .cmd = NL80211_CMD_LEAVE_MESH,
12711 .doit = nl80211_leave_mesh,
12712 .policy = nl80211_policy,
5617c6cd 12713 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 12714 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12715 NL80211_FLAG_NEED_RTNL,
12716 },
6e0bd6c3
RL		 12717 {
12718 .cmd = NL80211_CMD_JOIN_OCB,
12719 .doit = nl80211_join_ocb,
12720 .policy = nl80211_policy,
5617c6cd 12721 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 12722 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12723 NL80211_FLAG_NEED_RTNL,
12724 },
12725 {
12726 .cmd = NL80211_CMD_LEAVE_OCB,
12727 .doit = nl80211_leave_ocb,
12728 .policy = nl80211_policy,
5617c6cd 12729 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 12730 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12731 NL80211_FLAG_NEED_RTNL,
12732 },
dfb89c56 12733#ifdef CONFIG_PM
ff1b6e69
JB		 12734 {
12735 .cmd = NL80211_CMD_GET_WOWLAN,
12736 .doit = nl80211_get_wowlan,
12737 .policy = nl80211_policy,
12738 /* can be retrieved by unprivileged users */
12739 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12740 NL80211_FLAG_NEED_RTNL,
12741 },
12742 {
12743 .cmd = NL80211_CMD_SET_WOWLAN,
12744 .doit = nl80211_set_wowlan,
12745 .policy = nl80211_policy,
5617c6cd 12746 .flags = GENL_UNS_ADMIN_PERM,
ff1b6e69
JB		 12747 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12748 NL80211_FLAG_NEED_RTNL,
12749 },
dfb89c56 12750#endif
e5497d76
JB		 12751 {
12752 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
12753 .doit = nl80211_set_rekey_data,
12754 .policy = nl80211_policy,
5617c6cd 12755 .flags = GENL_UNS_ADMIN_PERM,
e5497d76 12756 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12757 NL80211_FLAG_NEED_RTNL |
12758 NL80211_FLAG_CLEAR_SKB,
e5497d76 12759 },
109086ce
AN		 12760 {
12761 .cmd = NL80211_CMD_TDLS_MGMT,
12762 .doit = nl80211_tdls_mgmt,
12763 .policy = nl80211_policy,
5617c6cd 12764 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 12765 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12766 NL80211_FLAG_NEED_RTNL,
12767 },
12768 {
12769 .cmd = NL80211_CMD_TDLS_OPER,
12770 .doit = nl80211_tdls_oper,
12771 .policy = nl80211_policy,
5617c6cd 12772 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 12773 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12774 NL80211_FLAG_NEED_RTNL,
12775 },
28946da7
JB		 12776 {
12777 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
12778 .doit = nl80211_register_unexpected_frame,
12779 .policy = nl80211_policy,
5617c6cd 12780 .flags = GENL_UNS_ADMIN_PERM,
28946da7
JB		 12781 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12782 NL80211_FLAG_NEED_RTNL,
12783 },
7f6cf311
JB		 12784 {
12785 .cmd = NL80211_CMD_PROBE_CLIENT,
12786 .doit = nl80211_probe_client,
12787 .policy = nl80211_policy,
5617c6cd 12788 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12789 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 12790 NL80211_FLAG_NEED_RTNL,
12791 },
5e760230
JB		 12792 {
12793 .cmd = NL80211_CMD_REGISTER_BEACONS,
12794 .doit = nl80211_register_beacons,
12795 .policy = nl80211_policy,
5617c6cd 12796 .flags = GENL_UNS_ADMIN_PERM,
5e760230
JB		 12797 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12798 NL80211_FLAG_NEED_RTNL,
12799 },
1d9d9213
SW		 12800 {
12801 .cmd = NL80211_CMD_SET_NOACK_MAP,
12802 .doit = nl80211_set_noack_map,
12803 .policy = nl80211_policy,
5617c6cd 12804 .flags = GENL_UNS_ADMIN_PERM,
1d9d9213
SW		 12805 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12806 NL80211_FLAG_NEED_RTNL,
12807 },
98104fde
JB		 12808 {
12809 .cmd = NL80211_CMD_START_P2P_DEVICE,
12810 .doit = nl80211_start_p2p_device,
12811 .policy = nl80211_policy,
5617c6cd 12812 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 12813 .internal_flags = NL80211_FLAG_NEED_WDEV |
12814 NL80211_FLAG_NEED_RTNL,
12815 },
12816 {
12817 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
12818 .doit = nl80211_stop_p2p_device,
12819 .policy = nl80211_policy,
5617c6cd 12820 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 12821 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12822 NL80211_FLAG_NEED_RTNL,
cb3b7d87
AB		 12823 },
12824 {
12825 .cmd = NL80211_CMD_START_NAN,
12826 .doit = nl80211_start_nan,
12827 .policy = nl80211_policy,
12828 .flags = GENL_ADMIN_PERM,
12829 .internal_flags = NL80211_FLAG_NEED_WDEV |
12830 NL80211_FLAG_NEED_RTNL,
12831 },
12832 {
12833 .cmd = NL80211_CMD_STOP_NAN,
12834 .doit = nl80211_stop_nan,
12835 .policy = nl80211_policy,
12836 .flags = GENL_ADMIN_PERM,
12837 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12838 NL80211_FLAG_NEED_RTNL,
a442b761
AB		 12839 },
12840 {
12841 .cmd = NL80211_CMD_ADD_NAN_FUNCTION,
12842 .doit = nl80211_nan_add_func,
12843 .policy = nl80211_policy,
12844 .flags = GENL_ADMIN_PERM,
12845 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12846 NL80211_FLAG_NEED_RTNL,
12847 },
12848 {
12849 .cmd = NL80211_CMD_DEL_NAN_FUNCTION,
12850 .doit = nl80211_nan_del_func,
12851 .policy = nl80211_policy,
12852 .flags = GENL_ADMIN_PERM,
12853 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12854 NL80211_FLAG_NEED_RTNL,
a5a9dcf2
AB		 12855 },
12856 {
12857 .cmd = NL80211_CMD_CHANGE_NAN_CONFIG,
12858 .doit = nl80211_nan_change_config,
12859 .policy = nl80211_policy,
12860 .flags = GENL_ADMIN_PERM,
12861 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12862 NL80211_FLAG_NEED_RTNL,
98104fde 12863 },
f4e583c8
AQ		 12864 {
12865 .cmd = NL80211_CMD_SET_MCAST_RATE,
12866 .doit = nl80211_set_mcast_rate,
77765eaf 12867 .policy = nl80211_policy,
5617c6cd 12868 .flags = GENL_UNS_ADMIN_PERM,
77765eaf
VT		 12869 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12870 NL80211_FLAG_NEED_RTNL,
12871 },
12872 {
12873 .cmd = NL80211_CMD_SET_MAC_ACL,
12874 .doit = nl80211_set_mac_acl,
f4e583c8 12875 .policy = nl80211_policy,
5617c6cd 12876 .flags = GENL_UNS_ADMIN_PERM,
f4e583c8
AQ		 12877 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12878 NL80211_FLAG_NEED_RTNL,
12879 },
04f39047
SW		 12880 {
12881 .cmd = NL80211_CMD_RADAR_DETECT,
12882 .doit = nl80211_start_radar_detection,
12883 .policy = nl80211_policy,
5617c6cd 12884 .flags = GENL_UNS_ADMIN_PERM,
04f39047
SW		 12885 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12886 NL80211_FLAG_NEED_RTNL,
12887 },
3713b4e3
JB		 12888 {
12889 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
12890 .doit = nl80211_get_protocol_features,
12891 .policy = nl80211_policy,
12892 },
355199e0
JM		 12893 {
12894 .cmd = NL80211_CMD_UPDATE_FT_IES,
12895 .doit = nl80211_update_ft_ies,
12896 .policy = nl80211_policy,
5617c6cd 12897 .flags = GENL_UNS_ADMIN_PERM,
355199e0
JM		 12898 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12899 NL80211_FLAG_NEED_RTNL,
12900 },
5de17984
AS		 12901 {
12902 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
12903 .doit = nl80211_crit_protocol_start,
12904 .policy = nl80211_policy,
5617c6cd 12905 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 12906 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12907 NL80211_FLAG_NEED_RTNL,
12908 },
12909 {
12910 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
12911 .doit = nl80211_crit_protocol_stop,
12912 .policy = nl80211_policy,
5617c6cd 12913 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 12914 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12915 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 12916 },
12917 {
12918 .cmd = NL80211_CMD_GET_COALESCE,
12919 .doit = nl80211_get_coalesce,
12920 .policy = nl80211_policy,
12921 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12922 NL80211_FLAG_NEED_RTNL,
12923 },
12924 {
12925 .cmd = NL80211_CMD_SET_COALESCE,
12926 .doit = nl80211_set_coalesce,
12927 .policy = nl80211_policy,
5617c6cd 12928 .flags = GENL_UNS_ADMIN_PERM,
be29b99a
AK		 12929 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12930 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 12931 },
12932 {
12933 .cmd = NL80211_CMD_CHANNEL_SWITCH,
12934 .doit = nl80211_channel_switch,
12935 .policy = nl80211_policy,
5617c6cd 12936 .flags = GENL_UNS_ADMIN_PERM,
16ef1fe2
SW		 12937 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12938 NL80211_FLAG_NEED_RTNL,
12939 },
ad7e718c
JB		 12940 {
12941 .cmd = NL80211_CMD_VENDOR,
12942 .doit = nl80211_vendor_cmd,
7bdbe400 12943 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c 12944 .policy = nl80211_policy,
5617c6cd 12945 .flags = GENL_UNS_ADMIN_PERM,
ad7e718c
JB		 12946 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12947 NL80211_FLAG_NEED_RTNL,
12948 },
fa9ffc74
KP		 12949 {
12950 .cmd = NL80211_CMD_SET_QOS_MAP,
12951 .doit = nl80211_set_qos_map,
12952 .policy = nl80211_policy,
5617c6cd 12953 .flags = GENL_UNS_ADMIN_PERM,
fa9ffc74
KP		 12954 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12955 NL80211_FLAG_NEED_RTNL,
12956 },
960d01ac
JB		 12957 {
12958 .cmd = NL80211_CMD_ADD_TX_TS,
12959 .doit = nl80211_add_tx_ts,
12960 .policy = nl80211_policy,
5617c6cd 12961 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 12962 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12963 NL80211_FLAG_NEED_RTNL,
12964 },
12965 {
12966 .cmd = NL80211_CMD_DEL_TX_TS,
12967 .doit = nl80211_del_tx_ts,
12968 .policy = nl80211_policy,
5617c6cd 12969 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 12970 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12971 NL80211_FLAG_NEED_RTNL,
12972 },
1057d35e
AN		 12973 {
12974 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
12975 .doit = nl80211_tdls_channel_switch,
12976 .policy = nl80211_policy,
5617c6cd 12977 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 12978 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12979 NL80211_FLAG_NEED_RTNL,
12980 },
12981 {
12982 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
12983 .doit = nl80211_tdls_cancel_channel_switch,
12984 .policy = nl80211_policy,
5617c6cd 12985 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 12986 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12987 NL80211_FLAG_NEED_RTNL,
12988 },
ce0ce13a
MB		 12989 {
12990 .cmd = NL80211_CMD_SET_MULTICAST_TO_UNICAST,
12991 .doit = nl80211_set_multicast_to_unicast,
12992 .policy = nl80211_policy,
12993 .flags = GENL_UNS_ADMIN_PERM,
12994 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12995 NL80211_FLAG_NEED_RTNL,
12996 },
55682965 12997};
9588bbd5 12998
56989f6d 12999static struct genl_family nl80211_fam __ro_after_init = {
489111e5
JB		 13000 .name = NL80211_GENL_NAME, /* have users key off the name instead */
13001 .hdrsize = 0, /* no private header */
13002 .version = 1, /* no particular meaning now */
13003 .maxattr = NL80211_ATTR_MAX,
13004 .netnsok = true,
13005 .pre_doit = nl80211_pre_doit,
13006 .post_doit = nl80211_post_doit,
13007 .module = THIS_MODULE,
13008 .ops = nl80211_ops,
13009 .n_ops = ARRAY_SIZE(nl80211_ops),
13010 .mcgrps = nl80211_mcgrps,
13011 .n_mcgrps = ARRAY_SIZE(nl80211_mcgrps),
13012};
13013
55682965
JB		 13014/* notification functions */
13015
3bb20556
JB		 13016void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
13017 enum nl80211_commands cmd)
55682965
JB		 13018{
13019 struct sk_buff *msg;
86e8cf98 13020 struct nl80211_dump_wiphy_state state = {};
55682965 13021
3bb20556
JB		 13022 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
13023 cmd != NL80211_CMD_DEL_WIPHY);
13024
fd2120ca 13025 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 13026 if (!msg)
13027 return;
13028
3bb20556 13029 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 13030 nlmsg_free(msg);
13031 return;
13032 }
13033
68eb5503 13034 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13035 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 13036}
13037
896ff063
DK		 13038void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
13039 struct wireless_dev *wdev,
13040 enum nl80211_commands cmd)
13041{
13042 struct sk_buff *msg;
13043
13044 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
13045 cmd != NL80211_CMD_DEL_INTERFACE);
13046
13047 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13048 if (!msg)
13049 return;
13050
13051 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
13052 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
13053 nlmsg_free(msg);
13054 return;
13055 }
13056
13057 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13058 NL80211_MCGRP_CONFIG, GFP_KERNEL);
13059}
13060
362a415d
JB		 13061static int nl80211_add_scan_req(struct sk_buff *msg,
13062 struct cfg80211_registered_device *rdev)
13063{
13064 struct cfg80211_scan_request *req = rdev->scan_req;
13065 struct nlattr *nest;
13066 int i;
13067
13068 if (WARN_ON(!req))
13069 return 0;
13070
13071 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
13072 if (!nest)
13073 goto nla_put_failure;
9360ffd1
DM		 13074 for (i = 0; i < req->n_ssids; i++) {
13075 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
13076 goto nla_put_failure;
13077 }
362a415d
JB		 13078 nla_nest_end(msg, nest);
13079
13080 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
13081 if (!nest)
13082 goto nla_put_failure;
9360ffd1
DM		 13083 for (i = 0; i < req->n_channels; i++) {
13084 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
13085 goto nla_put_failure;
13086 }
362a415d
JB		 13087 nla_nest_end(msg, nest);
13088
9360ffd1
DM		 13089 if (req->ie &&
13090 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
13091 goto nla_put_failure;
362a415d 13092
ae917c9f
JB		 13093 if (req->flags &&
13094 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
13095 goto nla_put_failure;
ed473771 13096
1d76250b
AS		 13097 if (req->info.scan_start_tsf &&
13098 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
13099 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
13100 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
13101 req->info.tsf_bssid)))
13102 goto nla_put_failure;
13103
362a415d
JB		 13104 return 0;
13105 nla_put_failure:
13106 return -ENOBUFS;
13107}
13108
505a2e88 13109static int nl80211_prep_scan_msg(struct sk_buff *msg,
a538e2d5 13110 struct cfg80211_registered_device *rdev,
fd014284 13111 struct wireless_dev *wdev,
15e47304 13112 u32 portid, u32 seq, int flags,
a538e2d5 13113 u32 cmd)
2a519311
JB		 13114{
13115 void *hdr;
13116
15e47304 13117 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 13118 if (!hdr)
13119 return -1;
13120
9360ffd1 13121 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 13122 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13123 wdev->netdev->ifindex)) ||
2dad624e
ND		 13124 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13125 NL80211_ATTR_PAD))
9360ffd1 13126 goto nla_put_failure;
2a519311 13127
362a415d
JB		 13128 /* ignore errors and send incomplete event anyway */
13129 nl80211_add_scan_req(msg, rdev);
2a519311 13130
053c095a
JB		 13131 genlmsg_end(msg, hdr);
13132 return 0;
2a519311
JB		 13133
13134 nla_put_failure:
13135 genlmsg_cancel(msg, hdr);
13136 return -EMSGSIZE;
13137}
13138
807f8a8c 13139static int
505a2e88 13140nl80211_prep_sched_scan_msg(struct sk_buff *msg,
807f8a8c
LC		 13141 struct cfg80211_registered_device *rdev,
13142 struct net_device *netdev,
15e47304 13143 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 13144{
13145 void *hdr;
13146
15e47304 13147 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 13148 if (!hdr)
13149 return -1;
13150
9360ffd1
DM		 13151 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13152 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13153 goto nla_put_failure;
807f8a8c 13154
053c095a
JB		 13155 genlmsg_end(msg, hdr);
13156 return 0;
807f8a8c
LC		 13157
13158 nla_put_failure:
13159 genlmsg_cancel(msg, hdr);
13160 return -EMSGSIZE;
13161}
13162
a538e2d5 13163void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 13164 struct wireless_dev *wdev)
a538e2d5
JB		 13165{
13166 struct sk_buff *msg;
13167
58050fce 13168 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 13169 if (!msg)
13170 return;
13171
505a2e88 13172 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 13173 NL80211_CMD_TRIGGER_SCAN) < 0) {
13174 nlmsg_free(msg);
13175 return;
13176 }
13177
68eb5503 13178 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13179 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 13180}
13181
f9d15d16
JB		 13182struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
13183 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 13184{
13185 struct sk_buff *msg;
13186
fd2120ca 13187 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 13188 if (!msg)
f9d15d16 13189 return NULL;
2a519311 13190
505a2e88 13191 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 13192 aborted ? NL80211_CMD_SCAN_ABORTED :
13193 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 13194 nlmsg_free(msg);
f9d15d16 13195 return NULL;
2a519311
JB		 13196 }
13197
f9d15d16 13198 return msg;
2a519311
JB		 13199}
13200
505a2e88
AVS		 13201/* send message created by nl80211_build_scan_msg() */
13202void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev,
13203 struct sk_buff *msg)
807f8a8c 13204{
807f8a8c
LC		 13205 if (!msg)
13206 return;
13207
68eb5503 13208 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13209 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 13210}
13211
13212void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
13213 struct net_device *netdev, u32 cmd)
13214{
13215 struct sk_buff *msg;
13216
58050fce 13217 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 13218 if (!msg)
13219 return;
13220
505a2e88 13221 if (nl80211_prep_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
807f8a8c
LC		 13222 nlmsg_free(msg);
13223 return;
13224 }
13225
68eb5503 13226 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13227 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 13228}
13229
b0d7aa59
JD		 13230static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
13231 struct regulatory_request *request)
73d54c9e 13232{
73d54c9e 13233 /* Userspace can always count this one always being set */
9360ffd1
DM		 13234 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
13235 goto nla_put_failure;
13236
13237 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
13238 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13239 NL80211_REGDOM_TYPE_WORLD))
13240 goto nla_put_failure;
13241 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
13242 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13243 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
13244 goto nla_put_failure;
13245 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
13246 request->intersect) {
13247 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13248 NL80211_REGDOM_TYPE_INTERSECTION))
13249 goto nla_put_failure;
13250 } else {
13251 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13252 NL80211_REGDOM_TYPE_COUNTRY) ||
13253 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
13254 request->alpha2))
13255 goto nla_put_failure;
13256 }
13257
ad30ca2c
AN		 13258 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
13259 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
13260
13261 if (wiphy &&
13262 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
13263 goto nla_put_failure;
1bdd716c
AN		 13264
13265 if (wiphy &&
13266 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
13267 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
13268 goto nla_put_failure;
ad30ca2c 13269 }
73d54c9e 13270
b0d7aa59
JD		 13271 return true;
13272
13273nla_put_failure:
13274 return false;
13275}
13276
13277/*
13278 * This can happen on global regulatory changes or device specific settings
13279 * based on custom regulatory domains.
13280 */
13281void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
13282 struct regulatory_request *request)
13283{
13284 struct sk_buff *msg;
13285 void *hdr;
13286
13287 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13288 if (!msg)
13289 return;
13290
13291 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
13292 if (!hdr) {
13293 nlmsg_free(msg);
13294 return;
13295 }
13296
13297 if (nl80211_reg_change_event_fill(msg, request) == false)
13298 goto nla_put_failure;
13299
3b7b72ee 13300 genlmsg_end(msg, hdr);
73d54c9e 13301
bc43b28c 13302 rcu_read_lock();
68eb5503 13303 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 13304 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 13305 rcu_read_unlock();
73d54c9e
LR		 13306
13307 return;
13308
13309nla_put_failure:
13310 genlmsg_cancel(msg, hdr);
13311 nlmsg_free(msg);
13312}
13313
6039f6d2
JM		 13314static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
13315 struct net_device *netdev,
13316 const u8 *buf, size_t len,
b0b6aa2c
EP		 13317 enum nl80211_commands cmd, gfp_t gfp,
13318 int uapsd_queues)
6039f6d2
JM		 13319{
13320 struct sk_buff *msg;
13321 void *hdr;
13322
4ef8c1c9 13323 msg = nlmsg_new(100 + len, gfp);
6039f6d2
JM		 13324 if (!msg)
13325 return;
13326
13327 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13328 if (!hdr) {
13329 nlmsg_free(msg);
13330 return;
13331 }
13332
9360ffd1
DM		 13333 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13334 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13335 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
13336 goto nla_put_failure;
6039f6d2 13337
b0b6aa2c
EP		 13338 if (uapsd_queues >= 0) {
13339 struct nlattr *nla_wmm =
13340 nla_nest_start(msg, NL80211_ATTR_STA_WME);
13341 if (!nla_wmm)
13342 goto nla_put_failure;
13343
13344 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
13345 uapsd_queues))
13346 goto nla_put_failure;
13347
13348 nla_nest_end(msg, nla_wmm);
13349 }
13350
3b7b72ee 13351 genlmsg_end(msg, hdr);
6039f6d2 13352
68eb5503 13353 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13354 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 13355 return;
13356
13357 nla_put_failure:
13358 genlmsg_cancel(msg, hdr);
13359 nlmsg_free(msg);
13360}
13361
13362void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13363 struct net_device *netdev, const u8 *buf,
13364 size_t len, gfp_t gfp)
6039f6d2
JM		 13365{
13366 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13367 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 13368}
13369
13370void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
13371 struct net_device *netdev, const u8 *buf,
b0b6aa2c 13372 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 13373{
e6d6e342 13374 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13375 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 13376}
13377
53b46b84 13378void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13379 struct net_device *netdev, const u8 *buf,
13380 size_t len, gfp_t gfp)
6039f6d2
JM		 13381{
13382 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13383 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 13384}
13385
53b46b84
JM		 13386void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
13387 struct net_device *netdev, const u8 *buf,
e6d6e342 13388 size_t len, gfp_t gfp)
6039f6d2
JM		 13389{
13390 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13391 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 13392}
13393
6ff57cf8
JB		 13394void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
13395 size_t len)
cf4e594e 13396{
947add36
JB		 13397 struct wireless_dev *wdev = dev->ieee80211_ptr;
13398 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13399 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 13400 const struct ieee80211_mgmt *mgmt = (void *)buf;
13401 u32 cmd;
947add36 13402
6ff57cf8
JB		 13403 if (WARN_ON(len < 2))
13404 return;
cf4e594e 13405
6ff57cf8
JB		 13406 if (ieee80211_is_deauth(mgmt->frame_control))
13407 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
13408 else
13409 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 13410
6ff57cf8 13411 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 13412 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 13413}
6ff57cf8 13414EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 13415
1b06bb40
LR		 13416static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
13417 struct net_device *netdev, int cmd,
e6d6e342 13418 const u8 *addr, gfp_t gfp)
1965c853
JM		 13419{
13420 struct sk_buff *msg;
13421 void *hdr;
13422
e6d6e342 13423 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 13424 if (!msg)
13425 return;
13426
13427 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13428 if (!hdr) {
13429 nlmsg_free(msg);
13430 return;
13431 }
13432
9360ffd1
DM		 13433 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13434 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13435 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13436 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13437 goto nla_put_failure;
1965c853 13438
3b7b72ee 13439 genlmsg_end(msg, hdr);
1965c853 13440
68eb5503 13441 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13442 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 13443 return;
13444
13445 nla_put_failure:
13446 genlmsg_cancel(msg, hdr);
13447 nlmsg_free(msg);
13448}
13449
13450void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13451 struct net_device *netdev, const u8 *addr,
13452 gfp_t gfp)
1965c853
JM		 13453{
13454 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 13455 addr, gfp);
1965c853
JM		 13456}
13457
13458void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13459 struct net_device *netdev, const u8 *addr,
13460 gfp_t gfp)
1965c853 13461{
e6d6e342
JB		 13462 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
13463 addr, gfp);
1965c853
JM		 13464}
13465
b23aa676 13466void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5349a0f7
VK		 13467 struct net_device *netdev,
13468 struct cfg80211_connect_resp_params *cr,
3093ebbe 13469 gfp_t gfp)
b23aa676
SO		 13470{
13471 struct sk_buff *msg;
13472 void *hdr;
13473
5349a0f7 13474 msg = nlmsg_new(100 + cr->req_ie_len + cr->resp_ie_len, gfp);
b23aa676
SO		 13475 if (!msg)
13476 return;
13477
13478 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
13479 if (!hdr) {
13480 nlmsg_free(msg);
13481 return;
13482 }
13483
9360ffd1
DM		 13484 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13485 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
5349a0f7
VK		 13486 (cr->bssid &&
13487 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, cr->bssid)) ||
bf1ecd21 13488 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
5349a0f7
VK		 13489 cr->status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
13490 cr->status) ||
13491 (cr->status < 0 &&
3093ebbe 13492 (nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
5349a0f7
VK		 13493 nla_put_u32(msg, NL80211_ATTR_TIMEOUT_REASON,
13494 cr->timeout_reason))) ||
13495 (cr->req_ie &&
13496 nla_put(msg, NL80211_ATTR_REQ_IE, cr->req_ie_len, cr->req_ie)) ||
13497 (cr->resp_ie &&
13498 nla_put(msg, NL80211_ATTR_RESP_IE, cr->resp_ie_len,
13499 cr->resp_ie)))
9360ffd1 13500 goto nla_put_failure;
b23aa676 13501
3b7b72ee 13502 genlmsg_end(msg, hdr);
b23aa676 13503
68eb5503 13504 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13505 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 13506 return;
13507
13508 nla_put_failure:
13509 genlmsg_cancel(msg, hdr);
13510 nlmsg_free(msg);
b23aa676
SO		 13511}
13512
13513void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
13514 struct net_device *netdev, const u8 *bssid,
13515 const u8 *req_ie, size_t req_ie_len,
13516 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
13517{
13518 struct sk_buff *msg;
13519 void *hdr;
13520
4ef8c1c9 13521 msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp);
b23aa676
SO		 13522 if (!msg)
13523 return;
13524
13525 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
13526 if (!hdr) {
13527 nlmsg_free(msg);
13528 return;
13529 }
13530
9360ffd1
DM		 13531 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13532 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13533 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
13534 (req_ie &&
13535 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
13536 (resp_ie &&
13537 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
13538 goto nla_put_failure;
b23aa676 13539
3b7b72ee 13540 genlmsg_end(msg, hdr);
b23aa676 13541
68eb5503 13542 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13543 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 13544 return;
13545
13546 nla_put_failure:
13547 genlmsg_cancel(msg, hdr);
13548 nlmsg_free(msg);
b23aa676
SO		 13549}
13550
13551void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
13552 struct net_device *netdev, u16 reason,
667503dd 13553 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 13554{
13555 struct sk_buff *msg;
13556 void *hdr;
13557
4ef8c1c9 13558 msg = nlmsg_new(100 + ie_len, GFP_KERNEL);
b23aa676
SO		 13559 if (!msg)
13560 return;
13561
13562 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
13563 if (!hdr) {
13564 nlmsg_free(msg);
13565 return;
13566 }
13567
9360ffd1
DM		 13568 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13569 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13570 (from_ap && reason &&
13571 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
13572 (from_ap &&
13573 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
13574 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
13575 goto nla_put_failure;
b23aa676 13576
3b7b72ee 13577 genlmsg_end(msg, hdr);
b23aa676 13578
68eb5503 13579 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13580 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 13581 return;
13582
13583 nla_put_failure:
13584 genlmsg_cancel(msg, hdr);
13585 nlmsg_free(msg);
b23aa676
SO		 13586}
13587
04a773ad
JB		 13588void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
13589 struct net_device *netdev, const u8 *bssid,
13590 gfp_t gfp)
13591{
13592 struct sk_buff *msg;
13593 void *hdr;
13594
fd2120ca 13595 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 13596 if (!msg)
13597 return;
13598
13599 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
13600 if (!hdr) {
13601 nlmsg_free(msg);
13602 return;
13603 }
13604
9360ffd1
DM		 13605 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13606 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13607 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13608 goto nla_put_failure;
04a773ad 13609
3b7b72ee 13610 genlmsg_end(msg, hdr);
04a773ad 13611
68eb5503 13612 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13613 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 13614 return;
13615
13616 nla_put_failure:
13617 genlmsg_cancel(msg, hdr);
13618 nlmsg_free(msg);
13619}
13620
947add36
JB		 13621void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
13622 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 13623{
947add36 13624 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13625 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 13626 struct sk_buff *msg;
13627 void *hdr;
13628
947add36
JB		 13629 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
13630 return;
13631
13632 trace_cfg80211_notify_new_peer_candidate(dev, addr);
13633
4ef8c1c9 13634 msg = nlmsg_new(100 + ie_len, gfp);
c93b5e71
JC		 13635 if (!msg)
13636 return;
13637
13638 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
13639 if (!hdr) {
13640 nlmsg_free(msg);
13641 return;
13642 }
13643
9360ffd1 13644 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 13645 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13646 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 13647 (ie_len && ie &&
13648 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
13649 goto nla_put_failure;
c93b5e71 13650
3b7b72ee 13651 genlmsg_end(msg, hdr);
c93b5e71 13652
68eb5503 13653 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13654 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 13655 return;
13656
13657 nla_put_failure:
13658 genlmsg_cancel(msg, hdr);
13659 nlmsg_free(msg);
13660}
947add36 13661EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 13662
a3b8b056
JM		 13663void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
13664 struct net_device *netdev, const u8 *addr,
13665 enum nl80211_key_type key_type, int key_id,
e6d6e342 13666 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 13667{
13668 struct sk_buff *msg;
13669 void *hdr;
13670
e6d6e342 13671 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 13672 if (!msg)
13673 return;
13674
13675 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
13676 if (!hdr) {
13677 nlmsg_free(msg);
13678 return;
13679 }
13680
9360ffd1
DM		 13681 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13682 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13683 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
13684 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
13685 (key_id != -1 &&
13686 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
13687 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
13688 goto nla_put_failure;
a3b8b056 13689
3b7b72ee 13690 genlmsg_end(msg, hdr);
a3b8b056 13691
68eb5503 13692 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13693 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 13694 return;
13695
13696 nla_put_failure:
13697 genlmsg_cancel(msg, hdr);
13698 nlmsg_free(msg);
13699}
13700
6bad8766
LR		 13701void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
13702 struct ieee80211_channel *channel_before,
13703 struct ieee80211_channel *channel_after)
13704{
13705 struct sk_buff *msg;
13706 void *hdr;
13707 struct nlattr *nl_freq;
13708
fd2120ca 13709 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 13710 if (!msg)
13711 return;
13712
13713 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
13714 if (!hdr) {
13715 nlmsg_free(msg);
13716 return;
13717 }
13718
13719 /*
13720 * Since we are applying the beacon hint to a wiphy we know its
13721 * wiphy_idx is valid
13722 */
9360ffd1
DM		 13723 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
13724 goto nla_put_failure;
6bad8766
LR		 13725
13726 /* Before */
13727 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
13728 if (!nl_freq)
13729 goto nla_put_failure;
cdc89b97 13730 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 13731 goto nla_put_failure;
13732 nla_nest_end(msg, nl_freq);
13733
13734 /* After */
13735 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
13736 if (!nl_freq)
13737 goto nla_put_failure;
cdc89b97 13738 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 13739 goto nla_put_failure;
13740 nla_nest_end(msg, nl_freq);
13741
3b7b72ee 13742 genlmsg_end(msg, hdr);
6bad8766 13743
463d0183 13744 rcu_read_lock();
68eb5503 13745 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 13746 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 13747 rcu_read_unlock();
6bad8766
LR		 13748
13749 return;
13750
13751nla_put_failure:
13752 genlmsg_cancel(msg, hdr);
13753 nlmsg_free(msg);
13754}
13755
9588bbd5
JM		 13756static void nl80211_send_remain_on_chan_event(
13757 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 13758 struct wireless_dev *wdev, u64 cookie,
9588bbd5 13759 struct ieee80211_channel *chan,
9588bbd5
JM		 13760 unsigned int duration, gfp_t gfp)
13761{
13762 struct sk_buff *msg;
13763 void *hdr;
13764
13765 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13766 if (!msg)
13767 return;
13768
13769 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13770 if (!hdr) {
13771 nlmsg_free(msg);
13772 return;
13773 }
13774
9360ffd1 13775 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 13776 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13777 wdev->netdev->ifindex)) ||
2dad624e
ND		 13778 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13779 NL80211_ATTR_PAD) ||
9360ffd1 13780 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 13781 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
13782 NL80211_CHAN_NO_HT) ||
2dad624e
ND		 13783 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13784 NL80211_ATTR_PAD))
9360ffd1 13785 goto nla_put_failure;
9588bbd5 13786
9360ffd1
DM		 13787 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
13788 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
13789 goto nla_put_failure;
9588bbd5 13790
3b7b72ee 13791 genlmsg_end(msg, hdr);
9588bbd5 13792
68eb5503 13793 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13794 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 13795 return;
13796
13797 nla_put_failure:
13798 genlmsg_cancel(msg, hdr);
13799 nlmsg_free(msg);
13800}
13801
947add36
JB		 13802void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
13803 struct ieee80211_channel *chan,
13804 unsigned int duration, gfp_t gfp)
9588bbd5 13805{
947add36 13806 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13807 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13808
13809 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 13810 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 13811 rdev, wdev, cookie, chan,
42d97a59 13812 duration, gfp);
9588bbd5 13813}
947add36 13814EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 13815
947add36
JB		 13816void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
13817 struct ieee80211_channel *chan,
13818 gfp_t gfp)
9588bbd5 13819{
947add36 13820 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13821 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13822
13823 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 13824 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 13825 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 13826}
947add36 13827EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 13828
947add36
JB		 13829void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
13830 struct station_info *sinfo, gfp_t gfp)
98b62183 13831{
947add36 13832 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 13833 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 13834 struct sk_buff *msg;
13835
947add36
JB		 13836 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
13837
58050fce 13838 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 13839 if (!msg)
13840 return;
13841
cf5ead82 13842 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 13843 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 13844 nlmsg_free(msg);
13845 return;
13846 }
13847
68eb5503 13848 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13849 NL80211_MCGRP_MLME, gfp);
98b62183 13850}
947add36 13851EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 13852
cf5ead82
JB		 13853void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
13854 struct station_info *sinfo, gfp_t gfp)
ec15e68b 13855{
947add36 13856 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 13857 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 13858 struct sk_buff *msg;
cf5ead82
JB		 13859 struct station_info empty_sinfo = {};
13860
13861 if (!sinfo)
13862 sinfo = &empty_sinfo;
ec15e68b 13863
947add36
JB		 13864 trace_cfg80211_del_sta(dev, mac_addr);
13865
58050fce 13866 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 13867 if (!msg)
13868 return;
13869
cf5ead82 13870 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 13871 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 13872 nlmsg_free(msg);
13873 return;
13874 }
13875
68eb5503 13876 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13877 NL80211_MCGRP_MLME, gfp);
ec15e68b 13878}
cf5ead82 13879EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 13880
947add36
JB		 13881void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
13882 enum nl80211_connect_failed_reason reason,
13883 gfp_t gfp)
ed44a951 13884{
947add36 13885 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 13886 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 13887 struct sk_buff *msg;
13888 void *hdr;
13889
13890 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
13891 if (!msg)
13892 return;
13893
13894 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
13895 if (!hdr) {
13896 nlmsg_free(msg);
13897 return;
13898 }
13899
13900 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13901 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
13902 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
13903 goto nla_put_failure;
13904
13905 genlmsg_end(msg, hdr);
13906
68eb5503 13907 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13908 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 13909 return;
13910
13911 nla_put_failure:
13912 genlmsg_cancel(msg, hdr);
13913 nlmsg_free(msg);
13914}
947add36 13915EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 13916
b92ab5d8
JB		 13917static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
13918 const u8 *addr, gfp_t gfp)
28946da7
JB		 13919{
13920 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13921 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 13922 struct sk_buff *msg;
13923 void *hdr;
15e47304 13924 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 13925
15e47304 13926 if (!nlportid)
28946da7
JB		 13927 return false;
13928
13929 msg = nlmsg_new(100, gfp);
13930 if (!msg)
13931 return true;
13932
b92ab5d8 13933 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 13934 if (!hdr) {
13935 nlmsg_free(msg);
13936 return true;
13937 }
13938
9360ffd1
DM		 13939 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13940 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13941 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13942 goto nla_put_failure;
28946da7 13943
9c90a9f6 13944 genlmsg_end(msg, hdr);
15e47304 13945 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 13946 return true;
13947
13948 nla_put_failure:
13949 genlmsg_cancel(msg, hdr);
13950 nlmsg_free(msg);
13951 return true;
13952}
13953
947add36
JB		 13954bool cfg80211_rx_spurious_frame(struct net_device *dev,
13955 const u8 *addr, gfp_t gfp)
b92ab5d8 13956{
947add36
JB		 13957 struct wireless_dev *wdev = dev->ieee80211_ptr;
13958 bool ret;
13959
13960 trace_cfg80211_rx_spurious_frame(dev, addr);
13961
13962 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
13963 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
13964 trace_cfg80211_return_bool(false);
13965 return false;
13966 }
13967 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
13968 addr, gfp);
13969 trace_cfg80211_return_bool(ret);
13970 return ret;
b92ab5d8 13971}
947add36 13972EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 13973
947add36
JB		 13974bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
13975 const u8 *addr, gfp_t gfp)
b92ab5d8 13976{
947add36
JB		 13977 struct wireless_dev *wdev = dev->ieee80211_ptr;
13978 bool ret;
13979
13980 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
13981
13982 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
13983 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
13984 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
13985 trace_cfg80211_return_bool(false);
13986 return false;
13987 }
13988 ret = __nl80211_unexpected_frame(dev,
13989 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
13990 addr, gfp);
13991 trace_cfg80211_return_bool(ret);
13992 return ret;
b92ab5d8 13993}
947add36 13994EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 13995
2e161f78 13996int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 13997 struct wireless_dev *wdev, u32 nlportid,
804483e9 13998 int freq, int sig_dbm,
19504cf5 13999 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 14000{
71bbc994 14001 struct net_device *netdev = wdev->netdev;
026331c4
JM		 14002 struct sk_buff *msg;
14003 void *hdr;
026331c4 14004
4ef8c1c9 14005 msg = nlmsg_new(100 + len, gfp);
026331c4
JM		 14006 if (!msg)
14007 return -ENOMEM;
14008
2e161f78 14009 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 14010 if (!hdr) {
14011 nlmsg_free(msg);
14012 return -ENOMEM;
14013 }
14014
9360ffd1 14015 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 14016 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14017 netdev->ifindex)) ||
2dad624e
ND		 14018 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14019 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14020 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
14021 (sig_dbm &&
14022 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 14023 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
14024 (flags &&
14025 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 14026 goto nla_put_failure;
026331c4 14027
3b7b72ee 14028 genlmsg_end(msg, hdr);
026331c4 14029
15e47304 14030 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 14031
14032 nla_put_failure:
14033 genlmsg_cancel(msg, hdr);
14034 nlmsg_free(msg);
14035 return -ENOBUFS;
14036}
14037
947add36
JB		 14038void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
14039 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 14040{
947add36 14041 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14042 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 14043 struct net_device *netdev = wdev->netdev;
026331c4
JM		 14044 struct sk_buff *msg;
14045 void *hdr;
14046
947add36
JB		 14047 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
14048
4ef8c1c9 14049 msg = nlmsg_new(100 + len, gfp);
026331c4
JM		 14050 if (!msg)
14051 return;
14052
2e161f78 14053 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 14054 if (!hdr) {
14055 nlmsg_free(msg);
14056 return;
14057 }
14058
9360ffd1 14059 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 14060 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14061 netdev->ifindex)) ||
2dad624e
ND		 14062 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14063 NL80211_ATTR_PAD) ||
9360ffd1 14064 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
2dad624e
ND		 14065 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14066 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14067 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
14068 goto nla_put_failure;
026331c4 14069
3b7b72ee 14070 genlmsg_end(msg, hdr);
026331c4 14071
68eb5503 14072 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14073 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 14074 return;
14075
14076 nla_put_failure:
14077 genlmsg_cancel(msg, hdr);
14078 nlmsg_free(msg);
14079}
947add36 14080EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 14081
5b97f49d
JB		 14082static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
14083 const char *mac, gfp_t gfp)
d6dc1a38 14084{
947add36 14085 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 14086 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14087 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14088 void **cb;
947add36 14089
d6dc1a38 14090 if (!msg)
5b97f49d 14091 return NULL;
d6dc1a38 14092
5b97f49d
JB		 14093 cb = (void **)msg->cb;
14094
14095 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
14096 if (!cb[0]) {
d6dc1a38 14097 nlmsg_free(msg);
5b97f49d 14098 return NULL;
d6dc1a38
JO		 14099 }
14100
9360ffd1 14101 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 14102 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 14103 goto nla_put_failure;
d6dc1a38 14104
5b97f49d 14105 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 14106 goto nla_put_failure;
14107
5b97f49d
JB		 14108 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
14109 if (!cb[1])
9360ffd1 14110 goto nla_put_failure;
d6dc1a38 14111
5b97f49d 14112 cb[2] = rdev;
d6dc1a38 14113
5b97f49d
JB		 14114 return msg;
14115 nla_put_failure:
14116 nlmsg_free(msg);
14117 return NULL;
14118}
14119
14120static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
14121{
14122 void **cb = (void **)msg->cb;
14123 struct cfg80211_registered_device *rdev = cb[2];
14124
14125 nla_nest_end(msg, cb[1]);
14126 genlmsg_end(msg, cb[0]);
14127
14128 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 14129
68eb5503 14130 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14131 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 14132}
14133
14134void cfg80211_cqm_rssi_notify(struct net_device *dev,
14135 enum nl80211_cqm_rssi_threshold_event rssi_event,
bee427b8 14136 s32 rssi_level, gfp_t gfp)
5b97f49d
JB		 14137{
14138 struct sk_buff *msg;
4a4b8169
AZ		 14139 struct wireless_dev *wdev = dev->ieee80211_ptr;
14140 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
5b97f49d 14141
bee427b8 14142 trace_cfg80211_cqm_rssi_notify(dev, rssi_event, rssi_level);
5b97f49d 14143
98f03342
JB		 14144 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
14145 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
14146 return;
14147
4a4b8169
AZ		 14148 if (wdev->cqm_config) {
14149 wdev->cqm_config->last_rssi_event_value = rssi_level;
14150
14151 cfg80211_cqm_rssi_update(rdev, dev);
14152
14153 if (rssi_level == 0)
14154 rssi_level = wdev->cqm_config->last_rssi_event_value;
14155 }
14156
5b97f49d
JB		 14157 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14158 if (!msg)
14159 return;
14160
14161 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
14162 rssi_event))
14163 goto nla_put_failure;
14164
bee427b8
AZ		 14165 if (rssi_level && nla_put_s32(msg, NL80211_ATTR_CQM_RSSI_LEVEL,
14166 rssi_level))
14167 goto nla_put_failure;
14168
5b97f49d
JB		 14169 cfg80211_send_cqm(msg, gfp);
14170
d6dc1a38
JO		 14171 return;
14172
14173 nla_put_failure:
d6dc1a38
JO		 14174 nlmsg_free(msg);
14175}
947add36 14176EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 14177
5b97f49d
JB		 14178void cfg80211_cqm_txe_notify(struct net_device *dev,
14179 const u8 *peer, u32 num_packets,
14180 u32 rate, u32 intvl, gfp_t gfp)
14181{
14182 struct sk_buff *msg;
14183
14184 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14185 if (!msg)
14186 return;
14187
14188 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
14189 goto nla_put_failure;
14190
14191 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
14192 goto nla_put_failure;
14193
14194 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
14195 goto nla_put_failure;
14196
14197 cfg80211_send_cqm(msg, gfp);
14198 return;
14199
14200 nla_put_failure:
14201 nlmsg_free(msg);
14202}
14203EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
14204
14205void cfg80211_cqm_pktloss_notify(struct net_device *dev,
14206 const u8 *peer, u32 num_packets, gfp_t gfp)
14207{
14208 struct sk_buff *msg;
14209
14210 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
14211
14212 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14213 if (!msg)
14214 return;
14215
14216 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
14217 goto nla_put_failure;
14218
14219 cfg80211_send_cqm(msg, gfp);
14220 return;
14221
14222 nla_put_failure:
14223 nlmsg_free(msg);
14224}
14225EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
14226
98f03342
JB		 14227void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
14228{
14229 struct sk_buff *msg;
14230
14231 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14232 if (!msg)
14233 return;
14234
14235 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
14236 goto nla_put_failure;
14237
14238 cfg80211_send_cqm(msg, gfp);
14239 return;
14240
14241 nla_put_failure:
14242 nlmsg_free(msg);
14243}
14244EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
14245
947add36
JB		 14246static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
14247 struct net_device *netdev, const u8 *bssid,
14248 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 14249{
14250 struct sk_buff *msg;
14251 struct nlattr *rekey_attr;
14252 void *hdr;
14253
58050fce 14254 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 14255 if (!msg)
14256 return;
14257
14258 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
14259 if (!hdr) {
14260 nlmsg_free(msg);
14261 return;
14262 }
14263
9360ffd1
DM		 14264 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14265 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14266 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14267 goto nla_put_failure;
e5497d76
JB		 14268
14269 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
14270 if (!rekey_attr)
14271 goto nla_put_failure;
14272
9360ffd1
DM		 14273 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
14274 NL80211_REPLAY_CTR_LEN, replay_ctr))
14275 goto nla_put_failure;
e5497d76
JB		 14276
14277 nla_nest_end(msg, rekey_attr);
14278
3b7b72ee 14279 genlmsg_end(msg, hdr);
e5497d76 14280
68eb5503 14281 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14282 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 14283 return;
14284
14285 nla_put_failure:
14286 genlmsg_cancel(msg, hdr);
14287 nlmsg_free(msg);
14288}
14289
947add36
JB		 14290void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
14291 const u8 *replay_ctr, gfp_t gfp)
14292{
14293 struct wireless_dev *wdev = dev->ieee80211_ptr;
14294 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14295 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14296
14297 trace_cfg80211_gtk_rekey_notify(dev, bssid);
14298 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
14299}
14300EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
14301
14302static void
14303nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
14304 struct net_device *netdev, int index,
14305 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 14306{
14307 struct sk_buff *msg;
14308 struct nlattr *attr;
14309 void *hdr;
14310
58050fce 14311 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 14312 if (!msg)
14313 return;
14314
14315 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
14316 if (!hdr) {
14317 nlmsg_free(msg);
14318 return;
14319 }
14320
9360ffd1
DM		 14321 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14322 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14323 goto nla_put_failure;
c9df56b4
JM		 14324
14325 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
14326 if (!attr)
14327 goto nla_put_failure;
14328
9360ffd1
DM		 14329 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
14330 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
14331 (preauth &&
14332 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
14333 goto nla_put_failure;
c9df56b4
JM		 14334
14335 nla_nest_end(msg, attr);
14336
3b7b72ee 14337 genlmsg_end(msg, hdr);
c9df56b4 14338
68eb5503 14339 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14340 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 14341 return;
14342
14343 nla_put_failure:
14344 genlmsg_cancel(msg, hdr);
14345 nlmsg_free(msg);
14346}
14347
947add36
JB		 14348void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
14349 const u8 *bssid, bool preauth, gfp_t gfp)
14350{
14351 struct wireless_dev *wdev = dev->ieee80211_ptr;
14352 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14353 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14354
14355 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
14356 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
14357}
14358EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
14359
14360static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
14361 struct net_device *netdev,
14362 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 14363 gfp_t gfp,
14364 enum nl80211_commands notif,
14365 u8 count)
5314526b
TP		 14366{
14367 struct sk_buff *msg;
14368 void *hdr;
14369
58050fce 14370 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 14371 if (!msg)
14372 return;
14373
f8d7552e 14374 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 14375 if (!hdr) {
14376 nlmsg_free(msg);
14377 return;
14378 }
14379
683b6d3b
JB		 14380 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14381 goto nla_put_failure;
14382
14383 if (nl80211_send_chandef(msg, chandef))
7eab0f64 14384 goto nla_put_failure;
5314526b 14385
f8d7552e
LC		 14386 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
14387 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
14388 goto nla_put_failure;
14389
5314526b
TP		 14390 genlmsg_end(msg, hdr);
14391
68eb5503 14392 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14393 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 14394 return;
14395
14396 nla_put_failure:
14397 genlmsg_cancel(msg, hdr);
14398 nlmsg_free(msg);
14399}
14400
947add36
JB		 14401void cfg80211_ch_switch_notify(struct net_device *dev,
14402 struct cfg80211_chan_def *chandef)
84f10708 14403{
947add36
JB		 14404 struct wireless_dev *wdev = dev->ieee80211_ptr;
14405 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14406 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 14407
e487eaeb 14408 ASSERT_WDEV_LOCK(wdev);
947add36 14409
e487eaeb 14410 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 14411
9e0e2961 14412 wdev->chandef = *chandef;
96f55f12 14413 wdev->preset_chandef = *chandef;
f8d7552e
LC		 14414 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14415 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 14416}
14417EXPORT_SYMBOL(cfg80211_ch_switch_notify);
14418
f8d7552e
LC		 14419void cfg80211_ch_switch_started_notify(struct net_device *dev,
14420 struct cfg80211_chan_def *chandef,
14421 u8 count)
14422{
14423 struct wireless_dev *wdev = dev->ieee80211_ptr;
14424 struct wiphy *wiphy = wdev->wiphy;
14425 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14426
14427 trace_cfg80211_ch_switch_started_notify(dev, chandef);
14428
14429 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14430 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
14431}
14432EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
14433
04f39047
SW		 14434void
14435nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 14436 const struct cfg80211_chan_def *chandef,
04f39047
SW		 14437 enum nl80211_radar_event event,
14438 struct net_device *netdev, gfp_t gfp)
14439{
14440 struct sk_buff *msg;
14441 void *hdr;
14442
14443 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14444 if (!msg)
14445 return;
14446
14447 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
14448 if (!hdr) {
14449 nlmsg_free(msg);
14450 return;
14451 }
14452
14453 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
14454 goto nla_put_failure;
14455
14456 /* NOP and radar events don't need a netdev parameter */
14457 if (netdev) {
14458 struct wireless_dev *wdev = netdev->ieee80211_ptr;
14459
14460 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
2dad624e
ND		 14461 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14462 NL80211_ATTR_PAD))
04f39047
SW		 14463 goto nla_put_failure;
14464 }
14465
14466 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
14467 goto nla_put_failure;
14468
14469 if (nl80211_send_chandef(msg, chandef))
14470 goto nla_put_failure;
14471
9c90a9f6 14472 genlmsg_end(msg, hdr);
04f39047 14473
68eb5503 14474 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14475 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 14476 return;
14477
14478 nla_put_failure:
14479 genlmsg_cancel(msg, hdr);
14480 nlmsg_free(msg);
14481}
14482
7f6cf311
JB		 14483void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
14484 u64 cookie, bool acked, gfp_t gfp)
14485{
14486 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14487 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 14488 struct sk_buff *msg;
14489 void *hdr;
7f6cf311 14490
4ee3e063
BL		 14491 trace_cfg80211_probe_status(dev, addr, cookie, acked);
14492
58050fce 14493 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 14494
7f6cf311
JB		 14495 if (!msg)
14496 return;
14497
14498 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
14499 if (!hdr) {
14500 nlmsg_free(msg);
14501 return;
14502 }
14503
9360ffd1
DM		 14504 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14505 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14506 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2dad624e
ND		 14507 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14508 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14509 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
14510 goto nla_put_failure;
7f6cf311 14511
9c90a9f6 14512 genlmsg_end(msg, hdr);
7f6cf311 14513
68eb5503 14514 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14515 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 14516 return;
14517
14518 nla_put_failure:
14519 genlmsg_cancel(msg, hdr);
14520 nlmsg_free(msg);
14521}
14522EXPORT_SYMBOL(cfg80211_probe_status);
14523
5e760230
JB		 14524void cfg80211_report_obss_beacon(struct wiphy *wiphy,
14525 const u8 *frame, size_t len,
37c73b5f 14526 int freq, int sig_dbm)
5e760230 14527{
f26cbf40 14528 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 14529 struct sk_buff *msg;
14530 void *hdr;
37c73b5f 14531 struct cfg80211_beacon_registration *reg;
5e760230 14532
4ee3e063
BL		 14533 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
14534
37c73b5f
BG		 14535 spin_lock_bh(&rdev->beacon_registrations_lock);
14536 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
14537 msg = nlmsg_new(len + 100, GFP_ATOMIC);
14538 if (!msg) {
14539 spin_unlock_bh(&rdev->beacon_registrations_lock);
14540 return;
14541 }
5e760230 14542
37c73b5f
BG		 14543 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
14544 if (!hdr)
14545 goto nla_put_failure;
5e760230 14546
37c73b5f
BG		 14547 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14548 (freq &&
14549 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
14550 (sig_dbm &&
14551 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
14552 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
14553 goto nla_put_failure;
5e760230 14554
37c73b5f 14555 genlmsg_end(msg, hdr);
5e760230 14556
37c73b5f
BG		 14557 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
14558 }
14559 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 14560 return;
14561
14562 nla_put_failure:
37c73b5f
BG		 14563 spin_unlock_bh(&rdev->beacon_registrations_lock);
14564 if (hdr)
14565 genlmsg_cancel(msg, hdr);
5e760230
JB		 14566 nlmsg_free(msg);
14567}
14568EXPORT_SYMBOL(cfg80211_report_obss_beacon);
14569
cd8f7cb4 14570#ifdef CONFIG_PM
8cd4d456
LC		 14571static int cfg80211_net_detect_results(struct sk_buff *msg,
14572 struct cfg80211_wowlan_wakeup *wakeup)
14573{
14574 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
14575 struct nlattr *nl_results, *nl_match, *nl_freqs;
14576 int i, j;
14577
14578 nl_results = nla_nest_start(
14579 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
14580 if (!nl_results)
14581 return -EMSGSIZE;
14582
14583 for (i = 0; i < nd->n_matches; i++) {
14584 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
14585
14586 nl_match = nla_nest_start(msg, i);
14587 if (!nl_match)
14588 break;
14589
14590 /* The SSID attribute is optional in nl80211, but for
14591 * simplicity reasons it's always present in the
14592 * cfg80211 structure. If a driver can't pass the
14593 * SSID, that needs to be changed. A zero length SSID
14594 * is still a valid SSID (wildcard), so it cannot be
14595 * used for this purpose.
14596 */
14597 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
14598 match->ssid.ssid)) {
14599 nla_nest_cancel(msg, nl_match);
14600 goto out;
14601 }
14602
14603 if (match->n_channels) {
14604 nl_freqs = nla_nest_start(
14605 msg, NL80211_ATTR_SCAN_FREQUENCIES);
14606 if (!nl_freqs) {
14607 nla_nest_cancel(msg, nl_match);
14608 goto out;
14609 }
14610
14611 for (j = 0; j < match->n_channels; j++) {
5528fae8 14612 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 14613 nla_nest_cancel(msg, nl_freqs);
14614 nla_nest_cancel(msg, nl_match);
14615 goto out;
14616 }
14617 }
14618
14619 nla_nest_end(msg, nl_freqs);
14620 }
14621
14622 nla_nest_end(msg, nl_match);
14623 }
14624
14625out:
14626 nla_nest_end(msg, nl_results);
14627 return 0;
14628}
14629
cd8f7cb4
JB		 14630void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
14631 struct cfg80211_wowlan_wakeup *wakeup,
14632 gfp_t gfp)
14633{
f26cbf40 14634 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 14635 struct sk_buff *msg;
14636 void *hdr;
9c90a9f6 14637 int size = 200;
cd8f7cb4
JB		 14638
14639 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
14640
14641 if (wakeup)
14642 size += wakeup->packet_present_len;
14643
14644 msg = nlmsg_new(size, gfp);
14645 if (!msg)
14646 return;
14647
14648 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
14649 if (!hdr)
14650 goto free_msg;
14651
14652 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 14653 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14654 NL80211_ATTR_PAD))
cd8f7cb4
JB		 14655 goto free_msg;
14656
14657 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14658 wdev->netdev->ifindex))
14659 goto free_msg;
14660
14661 if (wakeup) {
14662 struct nlattr *reasons;
14663
14664 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 14665 if (!reasons)
14666 goto free_msg;
cd8f7cb4
JB		 14667
14668 if (wakeup->disconnect &&
14669 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
14670 goto free_msg;
14671 if (wakeup->magic_pkt &&
14672 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
14673 goto free_msg;
14674 if (wakeup->gtk_rekey_failure &&
14675 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
14676 goto free_msg;
14677 if (wakeup->eap_identity_req &&
14678 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
14679 goto free_msg;
14680 if (wakeup->four_way_handshake &&
14681 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
14682 goto free_msg;
14683 if (wakeup->rfkill_release &&
14684 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
14685 goto free_msg;
14686
14687 if (wakeup->pattern_idx >= 0 &&
14688 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
14689 wakeup->pattern_idx))
14690 goto free_msg;
14691
ae917c9f
JB		 14692 if (wakeup->tcp_match &&
14693 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
14694 goto free_msg;
2a0e047e 14695
ae917c9f
JB		 14696 if (wakeup->tcp_connlost &&
14697 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
14698 goto free_msg;
2a0e047e 14699
ae917c9f
JB		 14700 if (wakeup->tcp_nomoretokens &&
14701 nla_put_flag(msg,
14702 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
14703 goto free_msg;
2a0e047e 14704
cd8f7cb4
JB		 14705 if (wakeup->packet) {
14706 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
14707 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
14708
14709 if (!wakeup->packet_80211) {
14710 pkt_attr =
14711 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
14712 len_attr =
14713 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
14714 }
14715
14716 if (wakeup->packet_len &&
14717 nla_put_u32(msg, len_attr, wakeup->packet_len))
14718 goto free_msg;
14719
14720 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
14721 wakeup->packet))
14722 goto free_msg;
14723 }
14724
8cd4d456
LC		 14725 if (wakeup->net_detect &&
14726 cfg80211_net_detect_results(msg, wakeup))
14727 goto free_msg;
14728
cd8f7cb4
JB		 14729 nla_nest_end(msg, reasons);
14730 }
14731
9c90a9f6 14732 genlmsg_end(msg, hdr);
cd8f7cb4 14733
68eb5503 14734 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14735 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 14736 return;
14737
14738 free_msg:
14739 nlmsg_free(msg);
14740}
14741EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
14742#endif
14743
3475b094
JM		 14744void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
14745 enum nl80211_tdls_operation oper,
14746 u16 reason_code, gfp_t gfp)
14747{
14748 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14749 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 14750 struct sk_buff *msg;
14751 void *hdr;
3475b094
JM		 14752
14753 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
14754 reason_code);
14755
14756 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14757 if (!msg)
14758 return;
14759
14760 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
14761 if (!hdr) {
14762 nlmsg_free(msg);
14763 return;
14764 }
14765
14766 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14767 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14768 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
14769 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
14770 (reason_code > 0 &&
14771 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
14772 goto nla_put_failure;
14773
9c90a9f6 14774 genlmsg_end(msg, hdr);
3475b094 14775
68eb5503 14776 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14777 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 14778 return;
14779
14780 nla_put_failure:
14781 genlmsg_cancel(msg, hdr);
14782 nlmsg_free(msg);
14783}
14784EXPORT_SYMBOL(cfg80211_tdls_oper_request);
14785
026331c4
JM		 14786static int nl80211_netlink_notify(struct notifier_block * nb,
14787 unsigned long state,
14788 void *_notify)
14789{
14790 struct netlink_notify *notify = _notify;
14791 struct cfg80211_registered_device *rdev;
14792 struct wireless_dev *wdev;
37c73b5f 14793 struct cfg80211_beacon_registration *reg, *tmp;
026331c4 14794
8f815cdd 14795 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
026331c4
JM		 14796 return NOTIFY_DONE;
14797
14798 rcu_read_lock();
14799
5e760230 14800 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 14801 bool schedule_destroy_work = false;
93a1e86c
JR		 14802 struct cfg80211_sched_scan_request *sched_scan_req =
14803 rcu_dereference(rdev->sched_scan_req);
14804
14805 if (sched_scan_req && notify->portid &&
753aacfd
JB		 14806 sched_scan_req->owner_nlportid == notify->portid) {
14807 sched_scan_req->owner_nlportid = 0;
14808
14809 if (rdev->ops->sched_scan_stop &&
14810 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
14811 schedule_work(&rdev->sched_scan_stop_wk);
14812 }
78f22b6a 14813
53873f13 14814 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15e47304 14815 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 14816
78f22b6a
JB		 14817 if (wdev->owner_nlportid == notify->portid)
14818 schedule_destroy_work = true;
bd2522b1
AZ		 14819 else if (wdev->conn_owner_nlportid == notify->portid)
14820 schedule_work(&wdev->disconnect_wk);
78f22b6a
JB		 14821 }
14822
37c73b5f
BG		 14823 spin_lock_bh(&rdev->beacon_registrations_lock);
14824 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
14825 list) {
14826 if (reg->nlportid == notify->portid) {
14827 list_del(&reg->list);
14828 kfree(reg);
14829 break;
14830 }
14831 }
14832 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 14833
14834 if (schedule_destroy_work) {
14835 struct cfg80211_iface_destroy *destroy;
14836
14837 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
14838 if (destroy) {
14839 destroy->nlportid = notify->portid;
14840 spin_lock(&rdev->destroy_list_lock);
14841 list_add(&destroy->list, &rdev->destroy_list);
14842 spin_unlock(&rdev->destroy_list_lock);
14843 schedule_work(&rdev->destroy_work);
14844 }
14845 }
5e760230 14846 }
026331c4
JM		 14847
14848 rcu_read_unlock();
14849
05050753
I		 14850 /*
14851 * It is possible that the user space process that is controlling the
14852 * indoor setting disappeared, so notify the regulatory core.
14853 */
14854 regulatory_netlink_notify(notify->portid);
6784c7db 14855 return NOTIFY_OK;
026331c4
JM		 14856}
14857
14858static struct notifier_block nl80211_netlink_notifier = {
14859 .notifier_call = nl80211_netlink_notify,
14860};
14861
355199e0
JM		 14862void cfg80211_ft_event(struct net_device *netdev,
14863 struct cfg80211_ft_event_params *ft_event)
14864{
14865 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 14866 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 14867 struct sk_buff *msg;
14868 void *hdr;
355199e0
JM		 14869
14870 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
14871
14872 if (!ft_event->target_ap)
14873 return;
14874
4ef8c1c9 14875 msg = nlmsg_new(100 + ft_event->ric_ies_len, GFP_KERNEL);
355199e0
JM		 14876 if (!msg)
14877 return;
14878
14879 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 14880 if (!hdr)
14881 goto out;
355199e0 14882
ae917c9f
JB		 14883 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14884 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14885 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
14886 goto out;
355199e0 14887
ae917c9f
JB		 14888 if (ft_event->ies &&
14889 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
14890 goto out;
14891 if (ft_event->ric_ies &&
14892 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
14893 ft_event->ric_ies))
14894 goto out;
355199e0 14895
9c90a9f6 14896 genlmsg_end(msg, hdr);
355199e0 14897
68eb5503 14898 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14899 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 14900 return;
14901 out:
14902 nlmsg_free(msg);
355199e0
JM		 14903}
14904EXPORT_SYMBOL(cfg80211_ft_event);
14905
5de17984
AS		 14906void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
14907{
14908 struct cfg80211_registered_device *rdev;
14909 struct sk_buff *msg;
14910 void *hdr;
14911 u32 nlportid;
14912
f26cbf40 14913 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 14914 if (!rdev->crit_proto_nlportid)
14915 return;
14916
14917 nlportid = rdev->crit_proto_nlportid;
14918 rdev->crit_proto_nlportid = 0;
14919
14920 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14921 if (!msg)
14922 return;
14923
14924 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
14925 if (!hdr)
14926 goto nla_put_failure;
14927
14928 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 14929 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14930 NL80211_ATTR_PAD))
5de17984
AS		 14931 goto nla_put_failure;
14932
14933 genlmsg_end(msg, hdr);
14934
14935 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
14936 return;
14937
14938 nla_put_failure:
14939 if (hdr)
14940 genlmsg_cancel(msg, hdr);
14941 nlmsg_free(msg);
5de17984
AS		 14942}
14943EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
14944
348baf0e
JB		 14945void nl80211_send_ap_stopped(struct wireless_dev *wdev)
14946{
14947 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14948 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 14949 struct sk_buff *msg;
14950 void *hdr;
14951
14952 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14953 if (!msg)
14954 return;
14955
14956 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
14957 if (!hdr)
14958 goto out;
14959
14960 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14961 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
2dad624e
ND		 14962 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14963 NL80211_ATTR_PAD))
348baf0e
JB		 14964 goto out;
14965
14966 genlmsg_end(msg, hdr);
14967
14968 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
14969 NL80211_MCGRP_MLME, GFP_KERNEL);
14970 return;
14971 out:
14972 nlmsg_free(msg);
14973}
14974
55682965
JB		 14975/* initialisation/exit functions */
14976
56989f6d 14977int __init nl80211_init(void)
55682965 14978{
0d63cbb5 14979 int err;
55682965 14980
489111e5 14981 err = genl_register_family(&nl80211_fam);
55682965
JB		 14982 if (err)
14983 return err;
14984
026331c4
JM		 14985 err = netlink_register_notifier(&nl80211_netlink_notifier);
14986 if (err)
14987 goto err_out;
14988
55682965
JB		 14989 return 0;
14990 err_out:
14991 genl_unregister_family(&nl80211_fam);
14992 return err;
14993}
14994
14995void nl80211_exit(void)
14996{
026331c4 14997 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 14998 genl_unregister_family(&nl80211_fam);
14999}
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