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nl80211: check for the required netlink attributes presence
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
66cd794e 6 * Copyright 2015-2017 Intel Deutschland GmbH
55682965
JB		 7 */
8
9#include <linux/if.h>
10#include <linux/module.h>
11#include <linux/err.h>
5a0e3ad6 12#include <linux/slab.h>
55682965
JB		 13#include <linux/list.h>
14#include <linux/if_ether.h>
15#include <linux/ieee80211.h>
16#include <linux/nl80211.h>
17#include <linux/rtnetlink.h>
18#include <linux/netlink.h>
2a519311 19#include <linux/etherdevice.h>
463d0183 20#include <net/net_namespace.h>
55682965
JB		 21#include <net/genetlink.h>
22#include <net/cfg80211.h>
463d0183 23#include <net/sock.h>
2a0e047e 24#include <net/inet_connection_sock.h>
55682965
JB		 25#include "core.h"
26#include "nl80211.h"
b2e1b302 27#include "reg.h"
e35e4d28 28#include "rdev-ops.h"
55682965 29
5fb628e9
JM		 30static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
31 struct genl_info *info,
32 struct cfg80211_crypto_settings *settings,
33 int cipher_limit);
34
55682965 35/* the netlink family */
489111e5 36static struct genl_family nl80211_fam;
55682965 37
2a94fe48
JB		 38/* multicast groups */
39enum nl80211_multicast_groups {
40 NL80211_MCGRP_CONFIG,
41 NL80211_MCGRP_SCAN,
42 NL80211_MCGRP_REGULATORY,
43 NL80211_MCGRP_MLME,
567ffc35 44 NL80211_MCGRP_VENDOR,
50bcd31d 45 NL80211_MCGRP_NAN,
2a94fe48
JB		 46 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
47};
48
49static const struct genl_multicast_group nl80211_mcgrps[] = {
71b836ec
JB		 50 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
51 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
52 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
53 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
54 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
50bcd31d 55 [NL80211_MCGRP_NAN] = { .name = NL80211_MULTICAST_GROUP_NAN },
2a94fe48 56#ifdef CONFIG_NL80211_TESTMODE
71b836ec 57 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
2a94fe48
JB		 58#endif
59};
60
89a54e48
JB		 61/* returns ERR_PTR values */
62static struct wireless_dev *
63__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 64{
89a54e48
JB		 65 struct cfg80211_registered_device *rdev;
66 struct wireless_dev *result = NULL;
67 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
68 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
69 u64 wdev_id;
70 int wiphy_idx = -1;
71 int ifidx = -1;
55682965 72
5fe231e8 73 ASSERT_RTNL();
55682965 74
89a54e48
JB		 75 if (!have_ifidx && !have_wdev_id)
76 return ERR_PTR(-EINVAL);
55682965 77
89a54e48
JB		 78 if (have_ifidx)
79 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
80 if (have_wdev_id) {
81 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
82 wiphy_idx = wdev_id >> 32;
55682965
JB		 83 }
84
89a54e48
JB		 85 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
86 struct wireless_dev *wdev;
87
88 if (wiphy_net(&rdev->wiphy) != netns)
89 continue;
90
91 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
92 continue;
93
53873f13 94 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
89a54e48
JB		 95 if (have_ifidx && wdev->netdev &&
96 wdev->netdev->ifindex == ifidx) {
97 result = wdev;
98 break;
99 }
100 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
101 result = wdev;
102 break;
103 }
104 }
89a54e48
JB		 105
106 if (result)
107 break;
108 }
109
110 if (result)
111 return result;
112 return ERR_PTR(-ENODEV);
55682965
JB		 113}
114
a9455408 115static struct cfg80211_registered_device *
878d9ec7 116__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 117{
7fee4778
JB		 118 struct cfg80211_registered_device *rdev = NULL, *tmp;
119 struct net_device *netdev;
a9455408 120
5fe231e8 121 ASSERT_RTNL();
a9455408 122
878d9ec7 123 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 124 !attrs[NL80211_ATTR_IFINDEX] &&
125 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 126 return ERR_PTR(-EINVAL);
127
878d9ec7 128 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 129 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 130 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 131
89a54e48
JB		 132 if (attrs[NL80211_ATTR_WDEV]) {
133 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
134 struct wireless_dev *wdev;
135 bool found = false;
136
137 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
138 if (tmp) {
139 /* make sure wdev exists */
53873f13 140 list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
89a54e48
JB		 141 if (wdev->identifier != (u32)wdev_id)
142 continue;
143 found = true;
144 break;
145 }
89a54e48
JB		 146
147 if (!found)
148 tmp = NULL;
149
150 if (rdev && tmp != rdev)
151 return ERR_PTR(-EINVAL);
152 rdev = tmp;
153 }
154 }
155
878d9ec7
JB		 156 if (attrs[NL80211_ATTR_IFINDEX]) {
157 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7a087e74 158
7f2b8562 159 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 160 if (netdev) {
161 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 162 tmp = wiphy_to_rdev(
163 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 164 else
165 tmp = NULL;
166
7fee4778
JB		 167 /* not wireless device -- return error */
168 if (!tmp)
169 return ERR_PTR(-EINVAL);
170
171 /* mismatch -- return error */
172 if (rdev && tmp != rdev)
173 return ERR_PTR(-EINVAL);
174
175 rdev = tmp;
a9455408 176 }
a9455408 177 }
a9455408 178
4f7eff10
JB		 179 if (!rdev)
180 return ERR_PTR(-ENODEV);
a9455408 181
4f7eff10
JB		 182 if (netns != wiphy_net(&rdev->wiphy))
183 return ERR_PTR(-ENODEV);
184
185 return rdev;
a9455408
JB		 186}
187
188/*
189 * This function returns a pointer to the driver
190 * that the genl_info item that is passed refers to.
a9455408
JB		 191 *
192 * The result of this can be a PTR_ERR and hence must
193 * be checked with IS_ERR() for errors.
194 */
195static struct cfg80211_registered_device *
4f7eff10 196cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 197{
5fe231e8 198 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 199}
200
55682965 201/* policy for the attributes */
8cd4d456 202static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 203 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
204 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 205 .len = 20-1 },
31888487 206 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 207
72bdcf34 208 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 209 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 210 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
211 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
212 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
213
b9a5f8ca
JM		 214 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
215 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
216 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
217 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 218 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 219 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 220
221 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
222 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
223 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 224
e007b857
EP		 225 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
226 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 227
b9454e83 228 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 229 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
230 .len = WLAN_MAX_KEY_LEN },
231 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
232 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
233 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 234 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 235 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 236
237 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
238 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
239 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
240 .len = IEEE80211_MAX_DATA_LEN },
241 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
242 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 243 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
244 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
245 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
246 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
247 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 248 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 249 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 250 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 251 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 252 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 253 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 254
b2e1b302
LR		 255 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
256 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
257
9f1ba906
JM		 258 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
259 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
260 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 261 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
262 .len = NL80211_MAX_SUPP_RATES },
50b12f59 263 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 264
24bdd9f4 265 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 266 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 267
6c739419 268 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 269
270 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
271 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
272 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 273 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
274 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 275
276 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
277 .len = IEEE80211_MAX_SSID_LEN },
278 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
279 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 280 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 281 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 282 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 283 [NL80211_ATTR_STA_FLAGS2] = {
284 .len = sizeof(struct nl80211_sta_flag_update),
285 },
3f77316c 286 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 287 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
288 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 289 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
290 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
291 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 292 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 293 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
9361df14 294 [NL80211_ATTR_PMKID] = { .len = WLAN_PMKID_LEN },
9588bbd5
JM		 295 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
296 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 297 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 298 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
299 .len = IEEE80211_MAX_DATA_LEN },
300 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 301 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 302 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 303 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 304 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 305 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
306 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 307 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 308 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
309 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 310 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 311 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 312 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 313 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 314 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 315 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 316 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 317 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 318 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 319 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
320 .len = IEEE80211_MAX_DATA_LEN },
321 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
322 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 323 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 324 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 325 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 326 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
327 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
328 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
329 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
330 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 331 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 332 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 333 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
334 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 335 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 336 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
337 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
338 .len = NL80211_HT_CAPABILITY_LEN
339 },
1d9d9213 340 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 341 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 342 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 343 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 344 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
11b6b5a4 345 [NL80211_ATTR_AUTH_DATA] = { .type = NLA_BINARY, },
f461be3e 346 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 347 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 348 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
349 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
8feb69c7 350 [NL80211_ATTR_LOCAL_MESH_POWER_MODE] = {. type = NLA_U32 },
77765eaf
VT		 351 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
352 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 353 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
354 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 355 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 356 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
357 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
358 .len = NL80211_VHT_CAPABILITY_LEN,
359 },
355199e0
JM		 360 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
361 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
362 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 363 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 364 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
365 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
366 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 367 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
368 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 369 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
370 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 371 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 372 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 373 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
374 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
375 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 376 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
377 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 378 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
379 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 380 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
18e5ca65 381 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 382 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 383 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 384 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
385 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
386 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 387 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 388 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 389 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
4b681c82 390 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
9c748934 391 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
05050753 392 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
34d50519 393 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
38de03d2 394 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
17b94247 395 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
c6e6a0c8
AE		 396 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
397 .len = VHT_MUMIMO_GROUPS_DATA_LEN
398 },
399 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
cb3b7d87 400 [NL80211_ATTR_NAN_MASTER_PREF] = { .type = NLA_U8 },
8585989d 401 [NL80211_ATTR_BANDS] = { .type = NLA_U32 },
a442b761 402 [NL80211_ATTR_NAN_FUNC] = { .type = NLA_NESTED },
348bd456
JM		 403 [NL80211_ATTR_FILS_KEK] = { .type = NLA_BINARY,
404 .len = FILS_MAX_KEK_LEN },
405 [NL80211_ATTR_FILS_NONCES] = { .len = 2 * FILS_NONCE_LEN },
ce0ce13a 406 [NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED] = { .type = NLA_FLAG, },
2fa436b3 407 [NL80211_ATTR_BSSID] = { .len = ETH_ALEN },
bf95ecdb 408 [NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] = { .type = NLA_S8 },
409 [NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST] = {
410 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
411 },
3093ebbe 412 [NL80211_ATTR_TIMEOUT_REASON] = { .type = NLA_U32 },
a3caf744
VK		 413 [NL80211_ATTR_FILS_ERP_USERNAME] = { .type = NLA_BINARY,
414 .len = FILS_ERP_MAX_USERNAME_LEN },
415 [NL80211_ATTR_FILS_ERP_REALM] = { .type = NLA_BINARY,
416 .len = FILS_ERP_MAX_REALM_LEN },
417 [NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] = { .type = NLA_U16 },
418 [NL80211_ATTR_FILS_ERP_RRK] = { .type = NLA_BINARY,
419 .len = FILS_ERP_MAX_RRK_LEN },
420 [NL80211_ATTR_FILS_CACHE_ID] = { .len = 2 },
421 [NL80211_ATTR_PMK] = { .type = NLA_BINARY, .len = PMK_MAX_LEN },
ca986ad9 422 [NL80211_ATTR_SCHED_SCAN_MULTI] = { .type = NLA_FLAG },
55682965
JB		 423};
424
e31b8213 425/* policy for the key attributes */
b54452b0 426static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 427 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 428 [NL80211_KEY_IDX] = { .type = NLA_U8 },
429 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 430 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 431 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
432 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 433 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 434 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
435};
436
437/* policy for the key default flags */
438static const struct nla_policy
439nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
440 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
441 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 442};
443
f83ace3b 444#ifdef CONFIG_PM
ff1b6e69
JB		 445/* policy for WoWLAN attributes */
446static const struct nla_policy
447nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
448 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
449 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
450 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
451 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 452 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
453 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
454 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
455 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 456 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 457 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 458};
459
460static const struct nla_policy
461nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
462 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
463 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
464 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
465 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
466 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
467 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
468 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
469 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
470 },
471 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
472 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
473 },
474 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
475 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
476 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69 477};
f83ace3b 478#endif /* CONFIG_PM */
ff1b6e69 479
be29b99a
AK		 480/* policy for coalesce rule attributes */
481static const struct nla_policy
482nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
483 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
484 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
485 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
486};
487
e5497d76
JB		 488/* policy for GTK rekey offload attributes */
489static const struct nla_policy
490nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
491 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
492 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
493 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
494};
495
a1f1c21c
LC		 496static const struct nla_policy
497nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 498 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 499 .len = IEEE80211_MAX_SSID_LEN },
3007e352 500 [NL80211_SCHED_SCAN_MATCH_ATTR_BSSID] = { .len = ETH_ALEN },
88e920b4 501 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 502};
503
3b06d277
AS		 504static const struct nla_policy
505nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
506 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
507 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
508};
509
38de03d2
AS		 510static const struct nla_policy
511nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
512 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
513 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
514 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
515 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
516 },
517};
518
a442b761
AB		 519/* policy for NAN function attributes */
520static const struct nla_policy
521nl80211_nan_func_policy[NL80211_NAN_FUNC_ATTR_MAX + 1] = {
522 [NL80211_NAN_FUNC_TYPE] = { .type = NLA_U8 },
0a27844c 523 [NL80211_NAN_FUNC_SERVICE_ID] = {
a442b761
AB		 524 .len = NL80211_NAN_FUNC_SERVICE_ID_LEN },
525 [NL80211_NAN_FUNC_PUBLISH_TYPE] = { .type = NLA_U8 },
526 [NL80211_NAN_FUNC_PUBLISH_BCAST] = { .type = NLA_FLAG },
527 [NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE] = { .type = NLA_FLAG },
528 [NL80211_NAN_FUNC_FOLLOW_UP_ID] = { .type = NLA_U8 },
529 [NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] = { .type = NLA_U8 },
530 [NL80211_NAN_FUNC_FOLLOW_UP_DEST] = { .len = ETH_ALEN },
531 [NL80211_NAN_FUNC_CLOSE_RANGE] = { .type = NLA_FLAG },
532 [NL80211_NAN_FUNC_TTL] = { .type = NLA_U32 },
533 [NL80211_NAN_FUNC_SERVICE_INFO] = { .type = NLA_BINARY,
534 .len = NL80211_NAN_FUNC_SERVICE_SPEC_INFO_MAX_LEN },
535 [NL80211_NAN_FUNC_SRF] = { .type = NLA_NESTED },
536 [NL80211_NAN_FUNC_RX_MATCH_FILTER] = { .type = NLA_NESTED },
537 [NL80211_NAN_FUNC_TX_MATCH_FILTER] = { .type = NLA_NESTED },
538 [NL80211_NAN_FUNC_INSTANCE_ID] = { .type = NLA_U8 },
539 [NL80211_NAN_FUNC_TERM_REASON] = { .type = NLA_U8 },
540};
541
542/* policy for Service Response Filter attributes */
543static const struct nla_policy
544nl80211_nan_srf_policy[NL80211_NAN_SRF_ATTR_MAX + 1] = {
545 [NL80211_NAN_SRF_INCLUDE] = { .type = NLA_FLAG },
546 [NL80211_NAN_SRF_BF] = { .type = NLA_BINARY,
547 .len = NL80211_NAN_FUNC_SRF_MAX_LEN },
548 [NL80211_NAN_SRF_BF_IDX] = { .type = NLA_U8 },
549 [NL80211_NAN_SRF_MAC_ADDRS] = { .type = NLA_NESTED },
550};
551
97990a06
JB		 552static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
553 struct netlink_callback *cb,
554 struct cfg80211_registered_device **rdev,
555 struct wireless_dev **wdev)
a043897a 556{
97990a06 557 int err;
a043897a 558
97990a06
JB		 559 if (!cb->args[0]) {
560 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
c90c39da 561 genl_family_attrbuf(&nl80211_fam),
fceb6435 562 nl80211_fam.maxattr, nl80211_policy, NULL);
97990a06 563 if (err)
ea90e0dc 564 return err;
67748893 565
c90c39da
JB		 566 *wdev = __cfg80211_wdev_from_attrs(
567 sock_net(skb->sk),
568 genl_family_attrbuf(&nl80211_fam));
ea90e0dc
JB		 569 if (IS_ERR(*wdev))
570 return PTR_ERR(*wdev);
f26cbf40 571 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 572 /* 0 is the first index - add 1 to parse only once */
573 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 574 cb->args[1] = (*wdev)->identifier;
575 } else {
c319d50b
JB		 576 /* subtract the 1 again here */
577 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 578 struct wireless_dev *tmp;
67748893 579
ea90e0dc
JB		 580 if (!wiphy)
581 return -ENODEV;
f26cbf40 582 *rdev = wiphy_to_rdev(wiphy);
97990a06 583 *wdev = NULL;
67748893 584
53873f13 585 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
97990a06
JB		 586 if (tmp->identifier == cb->args[1]) {
587 *wdev = tmp;
588 break;
589 }
590 }
67748893 591
ea90e0dc
JB		 592 if (!*wdev)
593 return -ENODEV;
67748893
JB		 594 }
595
67748893 596 return 0;
67748893
JB		 597}
598
f4a11bb0
JB		 599/* IE validation */
600static bool is_valid_ie_attr(const struct nlattr *attr)
601{
602 const u8 *pos;
603 int len;
604
605 if (!attr)
606 return true;
607
608 pos = nla_data(attr);
609 len = nla_len(attr);
610
611 while (len) {
612 u8 elemlen;
613
614 if (len < 2)
615 return false;
616 len -= 2;
617
618 elemlen = pos[1];
619 if (elemlen > len)
620 return false;
621
622 len -= elemlen;
623 pos += 2 + elemlen;
624 }
625
626 return true;
627}
628
55682965 629/* message building helper */
15e47304 630static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 631 int flags, u8 cmd)
632{
633 /* since there is no private header just add the generic one */
15e47304 634 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 635}
636
5dab3b8a 637static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 638 struct ieee80211_channel *chan,
639 bool large)
5dab3b8a 640{
ea077c1c
RL		 641 /* Some channels must be completely excluded from the
642 * list to protect old user-space tools from breaking
643 */
644 if (!large && chan->flags &
645 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
646 return 0;
647
9360ffd1
DM		 648 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
649 chan->center_freq))
650 goto nla_put_failure;
5dab3b8a 651
9360ffd1
DM		 652 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
653 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
654 goto nla_put_failure;
8fe02e16
LR		 655 if (chan->flags & IEEE80211_CHAN_NO_IR) {
656 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
657 goto nla_put_failure;
658 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
659 goto nla_put_failure;
660 }
cdc89b97
JB		 661 if (chan->flags & IEEE80211_CHAN_RADAR) {
662 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
663 goto nla_put_failure;
664 if (large) {
665 u32 time;
666
667 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
668
669 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
670 chan->dfs_state))
671 goto nla_put_failure;
672 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
673 time))
674 goto nla_put_failure;
089027e5
JD		 675 if (nla_put_u32(msg,
676 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
677 chan->dfs_cac_ms))
678 goto nla_put_failure;
cdc89b97
JB		 679 }
680 }
5dab3b8a 681
fe1abafd
JB		 682 if (large) {
683 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
684 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
685 goto nla_put_failure;
686 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
687 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
688 goto nla_put_failure;
689 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
690 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
691 goto nla_put_failure;
692 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
693 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
694 goto nla_put_failure;
570dbde1
DS		 695 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
696 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
697 goto nla_put_failure;
06f207fc
AN		 698 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
699 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 700 goto nla_put_failure;
ea077c1c
RL		 701 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
702 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
703 goto nla_put_failure;
704 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
705 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
706 goto nla_put_failure;
fe1abafd
JB		 707 }
708
9360ffd1
DM		 709 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
710 DBM_TO_MBM(chan->max_power)))
711 goto nla_put_failure;
5dab3b8a
LR		 712
713 return 0;
714
715 nla_put_failure:
716 return -ENOBUFS;
717}
718
55682965
JB		 719/* netlink command implementations */
720
b9454e83
JB		 721struct key_parse {
722 struct key_params p;
723 int idx;
e31b8213 724 int type;
b9454e83 725 bool def, defmgmt;
dbd2fd65 726 bool def_uni, def_multi;
b9454e83
JB		 727};
728
729static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
730{
731 struct nlattr *tb[NL80211_KEY_MAX + 1];
732 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
fceb6435 733 nl80211_key_policy, NULL);
b9454e83
JB		 734 if (err)
735 return err;
736
737 k->def = !!tb[NL80211_KEY_DEFAULT];
738 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
739
dbd2fd65
JB		 740 if (k->def) {
741 k->def_uni = true;
742 k->def_multi = true;
743 }
744 if (k->defmgmt)
745 k->def_multi = true;
746
b9454e83
JB		 747 if (tb[NL80211_KEY_IDX])
748 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
749
750 if (tb[NL80211_KEY_DATA]) {
751 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
752 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
753 }
754
755 if (tb[NL80211_KEY_SEQ]) {
756 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
757 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
758 }
759
760 if (tb[NL80211_KEY_CIPHER])
761 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
762
e31b8213
JB		 763 if (tb[NL80211_KEY_TYPE]) {
764 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
765 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
766 return -EINVAL;
767 }
768
dbd2fd65
JB		 769 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
770 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
7a087e74 771
2da8f419
JB		 772 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
773 tb[NL80211_KEY_DEFAULT_TYPES],
fceb6435 774 nl80211_key_default_policy, NULL);
dbd2fd65
JB		 775 if (err)
776 return err;
777
778 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
779 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
780 }
781
b9454e83
JB		 782 return 0;
783}
784
785static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
786{
787 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
788 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
789 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
790 }
791
792 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
793 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
794 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
795 }
796
797 if (info->attrs[NL80211_ATTR_KEY_IDX])
798 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
799
800 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
801 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
802
803 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
804 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
805
dbd2fd65
JB		 806 if (k->def) {
807 k->def_uni = true;
808 k->def_multi = true;
809 }
810 if (k->defmgmt)
811 k->def_multi = true;
812
e31b8213
JB		 813 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
814 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
815 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
816 return -EINVAL;
817 }
818
dbd2fd65
JB		 819 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
820 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
fceb6435
JB		 821 int err = nla_parse_nested(kdt,
822 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
823 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
fe52145f
JB		 824 nl80211_key_default_policy,
825 info->extack);
dbd2fd65
JB		 826 if (err)
827 return err;
828
829 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
830 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
831 }
832
b9454e83
JB		 833 return 0;
834}
835
836static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
837{
838 int err;
839
840 memset(k, 0, sizeof(*k));
841 k->idx = -1;
e31b8213 842 k->type = -1;
b9454e83
JB		 843
844 if (info->attrs[NL80211_ATTR_KEY])
845 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
846 else
847 err = nl80211_parse_key_old(info, k);
848
849 if (err)
850 return err;
851
852 if (k->def && k->defmgmt)
853 return -EINVAL;
854
dbd2fd65
JB		 855 if (k->defmgmt) {
856 if (k->def_uni || !k->def_multi)
857 return -EINVAL;
858 }
859
b9454e83
JB		 860 if (k->idx != -1) {
861 if (k->defmgmt) {
862 if (k->idx < 4 || k->idx > 5)
863 return -EINVAL;
864 } else if (k->def) {
865 if (k->idx < 0 || k->idx > 3)
866 return -EINVAL;
867 } else {
868 if (k->idx < 0 || k->idx > 5)
869 return -EINVAL;
870 }
871 }
872
873 return 0;
874}
875
fffd0934
JB		 876static struct cfg80211_cached_keys *
877nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 878 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 879{
880 struct key_parse parse;
881 struct nlattr *key;
882 struct cfg80211_cached_keys *result;
883 int rem, err, def = 0;
f1c1f17a
JB		 884 bool have_key = false;
885
886 nla_for_each_nested(key, keys, rem) {
887 have_key = true;
888 break;
889 }
890
891 if (!have_key)
892 return NULL;
fffd0934
JB		 893
894 result = kzalloc(sizeof(*result), GFP_KERNEL);
895 if (!result)
896 return ERR_PTR(-ENOMEM);
897
898 result->def = -1;
fffd0934
JB		 899
900 nla_for_each_nested(key, keys, rem) {
901 memset(&parse, 0, sizeof(parse));
902 parse.idx = -1;
903
904 err = nl80211_parse_key_new(key, &parse);
905 if (err)
906 goto error;
907 err = -EINVAL;
908 if (!parse.p.key)
909 goto error;
42ee231c 910 if (parse.idx < 0 || parse.idx > 3)
fffd0934
JB		 911 goto error;
912 if (parse.def) {
913 if (def)
914 goto error;
915 def = 1;
916 result->def = parse.idx;
dbd2fd65
JB		 917 if (!parse.def_uni || !parse.def_multi)
918 goto error;
fffd0934
JB		 919 } else if (parse.defmgmt)
920 goto error;
921 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 922 parse.idx, false, NULL);
fffd0934
JB		 923 if (err)
924 goto error;
386b1f27
JB		 925 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
926 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
927 err = -EINVAL;
928 goto error;
929 }
fffd0934
JB		 930 result->params[parse.idx].cipher = parse.p.cipher;
931 result->params[parse.idx].key_len = parse.p.key_len;
932 result->params[parse.idx].key = result->data[parse.idx];
933 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee 934
386b1f27
JB		 935 /* must be WEP key if we got here */
936 if (no_ht)
937 *no_ht = true;
fffd0934
JB		 938 }
939
f1c1f17a
JB		 940 if (result->def < 0) {
941 err = -EINVAL;
942 goto error;
943 }
944
fffd0934
JB		 945 return result;
946 error:
947 kfree(result);
948 return ERR_PTR(err);
949}
950
951static int nl80211_key_allowed(struct wireless_dev *wdev)
952{
953 ASSERT_WDEV_LOCK(wdev);
954
fffd0934
JB		 955 switch (wdev->iftype) {
956 case NL80211_IFTYPE_AP:
957 case NL80211_IFTYPE_AP_VLAN:
074ac8df 958 case NL80211_IFTYPE_P2P_GO:
ff973af7 959 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 960 break;
961 case NL80211_IFTYPE_ADHOC:
fffd0934 962 case NL80211_IFTYPE_STATION:
074ac8df 963 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 964 if (!wdev->current_bss)
fffd0934
JB		 965 return -ENOLINK;
966 break;
de4fcbad 967 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 968 case NL80211_IFTYPE_OCB:
de4fcbad 969 case NL80211_IFTYPE_MONITOR:
cb3b7d87 970 case NL80211_IFTYPE_NAN:
de4fcbad
JB		 971 case NL80211_IFTYPE_P2P_DEVICE:
972 case NL80211_IFTYPE_WDS:
973 case NUM_NL80211_IFTYPES:
fffd0934
JB		 974 return -EINVAL;
975 }
976
977 return 0;
978}
979
664834de
JM		 980static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
981 struct nlattr *tb)
982{
983 struct ieee80211_channel *chan;
984
985 if (tb == NULL)
986 return NULL;
987 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
988 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
989 return NULL;
990 return chan;
991}
992
7527a782
JB		 993static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
994{
995 struct nlattr *nl_modes = nla_nest_start(msg, attr);
996 int i;
997
998 if (!nl_modes)
999 goto nla_put_failure;
1000
1001 i = 0;
1002 while (ifmodes) {
9360ffd1
DM		 1003 if ((ifmodes & 1) && nla_put_flag(msg, i))
1004 goto nla_put_failure;
7527a782
JB		 1005 ifmodes >>= 1;
1006 i++;
1007 }
1008
1009 nla_nest_end(msg, nl_modes);
1010 return 0;
1011
1012nla_put_failure:
1013 return -ENOBUFS;
1014}
1015
1016static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 1017 struct sk_buff *msg,
1018 bool large)
7527a782
JB		 1019{
1020 struct nlattr *nl_combis;
1021 int i, j;
1022
1023 nl_combis = nla_nest_start(msg,
1024 NL80211_ATTR_INTERFACE_COMBINATIONS);
1025 if (!nl_combis)
1026 goto nla_put_failure;
1027
1028 for (i = 0; i < wiphy->n_iface_combinations; i++) {
1029 const struct ieee80211_iface_combination *c;
1030 struct nlattr *nl_combi, *nl_limits;
1031
1032 c = &wiphy->iface_combinations[i];
1033
1034 nl_combi = nla_nest_start(msg, i + 1);
1035 if (!nl_combi)
1036 goto nla_put_failure;
1037
1038 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1039 if (!nl_limits)
1040 goto nla_put_failure;
1041
1042 for (j = 0; j < c->n_limits; j++) {
1043 struct nlattr *nl_limit;
1044
1045 nl_limit = nla_nest_start(msg, j + 1);
1046 if (!nl_limit)
1047 goto nla_put_failure;
9360ffd1
DM		 1048 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1049 c->limits[j].max))
1050 goto nla_put_failure;
7527a782
JB		 1051 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1052 c->limits[j].types))
1053 goto nla_put_failure;
1054 nla_nest_end(msg, nl_limit);
1055 }
1056
1057 nla_nest_end(msg, nl_limits);
1058
9360ffd1
DM		 1059 if (c->beacon_int_infra_match &&
1060 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1061 goto nla_put_failure;
1062 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1063 c->num_different_channels) ||
1064 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1065 c->max_interfaces))
1066 goto nla_put_failure;
cdc89b97 1067 if (large &&
8c48b50a
FF		 1068 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1069 c->radar_detect_widths) ||
1070 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1071 c->radar_detect_regions)))
cdc89b97 1072 goto nla_put_failure;
0c317a02
PK		 1073 if (c->beacon_int_min_gcd &&
1074 nla_put_u32(msg, NL80211_IFACE_COMB_BI_MIN_GCD,
1075 c->beacon_int_min_gcd))
1076 goto nla_put_failure;
7527a782
JB		 1077
1078 nla_nest_end(msg, nl_combi);
1079 }
1080
1081 nla_nest_end(msg, nl_combis);
1082
1083 return 0;
1084nla_put_failure:
1085 return -ENOBUFS;
1086}
1087
3713b4e3 1088#ifdef CONFIG_PM
b56cf720
JB		 1089static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1090 struct sk_buff *msg)
1091{
964dc9e2 1092 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1093 struct nlattr *nl_tcp;
1094
1095 if (!tcp)
1096 return 0;
1097
1098 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1099 if (!nl_tcp)
1100 return -ENOBUFS;
1101
1102 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1103 tcp->data_payload_max))
1104 return -ENOBUFS;
1105
1106 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1107 tcp->data_payload_max))
1108 return -ENOBUFS;
1109
1110 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1111 return -ENOBUFS;
1112
1113 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1114 sizeof(*tcp->tok), tcp->tok))
1115 return -ENOBUFS;
1116
1117 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1118 tcp->data_interval_max))
1119 return -ENOBUFS;
1120
1121 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1122 tcp->wake_payload_max))
1123 return -ENOBUFS;
1124
1125 nla_nest_end(msg, nl_tcp);
1126 return 0;
1127}
1128
3713b4e3 1129static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1130 struct cfg80211_registered_device *rdev,
b56cf720 1131 bool large)
55682965 1132{
3713b4e3 1133 struct nlattr *nl_wowlan;
55682965 1134
1b8ec87a 1135 if (!rdev->wiphy.wowlan)
3713b4e3 1136 return 0;
55682965 1137
3713b4e3
JB		 1138 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1139 if (!nl_wowlan)
1140 return -ENOBUFS;
9360ffd1 1141
1b8ec87a 1142 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1143 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1144 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1145 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1146 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1147 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1148 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1149 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1150 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1151 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1152 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1153 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1154 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1155 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1156 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1157 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1158 return -ENOBUFS;
9360ffd1 1159
1b8ec87a 1160 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1161 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1162 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1163 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1164 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1165 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1166 };
9360ffd1 1167
3713b4e3
JB		 1168 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1169 sizeof(pat), &pat))
1170 return -ENOBUFS;
1171 }
9360ffd1 1172
75453ccb
LC		 1173 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1174 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1175 rdev->wiphy.wowlan->max_nd_match_sets))
1176 return -ENOBUFS;
1177
1b8ec87a 1178 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1179 return -ENOBUFS;
1180
3713b4e3 1181 nla_nest_end(msg, nl_wowlan);
9360ffd1 1182
3713b4e3
JB		 1183 return 0;
1184}
1185#endif
9360ffd1 1186
be29b99a 1187static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1188 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1189{
1190 struct nl80211_coalesce_rule_support rule;
1191
1b8ec87a 1192 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1193 return 0;
1194
1b8ec87a
ZG		 1195 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1196 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1197 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1198 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1199 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1200 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1201
1202 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1203 return -ENOBUFS;
1204
1205 return 0;
1206}
1207
3713b4e3
JB		 1208static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1209 struct ieee80211_supported_band *sband)
1210{
1211 struct nlattr *nl_rates, *nl_rate;
1212 struct ieee80211_rate *rate;
1213 int i;
87bbbe22 1214
3713b4e3
JB		 1215 /* add HT info */
1216 if (sband->ht_cap.ht_supported &&
1217 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1218 sizeof(sband->ht_cap.mcs),
1219 &sband->ht_cap.mcs) ||
1220 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1221 sband->ht_cap.cap) ||
1222 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1223 sband->ht_cap.ampdu_factor) ||
1224 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1225 sband->ht_cap.ampdu_density)))
1226 return -ENOBUFS;
afe0cbf8 1227
3713b4e3
JB		 1228 /* add VHT info */
1229 if (sband->vht_cap.vht_supported &&
1230 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1231 sizeof(sband->vht_cap.vht_mcs),
1232 &sband->vht_cap.vht_mcs) ||
1233 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1234 sband->vht_cap.cap)))
1235 return -ENOBUFS;
f59ac048 1236
3713b4e3
JB		 1237 /* add bitrates */
1238 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1239 if (!nl_rates)
1240 return -ENOBUFS;
ee688b00 1241
3713b4e3
JB		 1242 for (i = 0; i < sband->n_bitrates; i++) {
1243 nl_rate = nla_nest_start(msg, i);
1244 if (!nl_rate)
1245 return -ENOBUFS;
ee688b00 1246
3713b4e3
JB		 1247 rate = &sband->bitrates[i];
1248 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1249 rate->bitrate))
1250 return -ENOBUFS;
1251 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1252 nla_put_flag(msg,
1253 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1254 return -ENOBUFS;
ee688b00 1255
3713b4e3
JB		 1256 nla_nest_end(msg, nl_rate);
1257 }
d51626df 1258
3713b4e3 1259 nla_nest_end(msg, nl_rates);
bf0c111e 1260
3713b4e3
JB		 1261 return 0;
1262}
ee688b00 1263
3713b4e3
JB		 1264static int
1265nl80211_send_mgmt_stypes(struct sk_buff *msg,
1266 const struct ieee80211_txrx_stypes *mgmt_stypes)
1267{
1268 u16 stypes;
1269 struct nlattr *nl_ftypes, *nl_ifs;
1270 enum nl80211_iftype ift;
1271 int i;
ee688b00 1272
3713b4e3
JB		 1273 if (!mgmt_stypes)
1274 return 0;
5dab3b8a 1275
3713b4e3
JB		 1276 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1277 if (!nl_ifs)
1278 return -ENOBUFS;
e2f367f2 1279
3713b4e3
JB		 1280 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1281 nl_ftypes = nla_nest_start(msg, ift);
1282 if (!nl_ftypes)
1283 return -ENOBUFS;
1284 i = 0;
1285 stypes = mgmt_stypes[ift].tx;
1286 while (stypes) {
1287 if ((stypes & 1) &&
1288 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1289 (i << 4) | IEEE80211_FTYPE_MGMT))
1290 return -ENOBUFS;
1291 stypes >>= 1;
1292 i++;
ee688b00 1293 }
3713b4e3
JB		 1294 nla_nest_end(msg, nl_ftypes);
1295 }
ee688b00 1296
3713b4e3 1297 nla_nest_end(msg, nl_ifs);
ee688b00 1298
3713b4e3
JB		 1299 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1300 if (!nl_ifs)
1301 return -ENOBUFS;
ee688b00 1302
3713b4e3
JB		 1303 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1304 nl_ftypes = nla_nest_start(msg, ift);
1305 if (!nl_ftypes)
1306 return -ENOBUFS;
1307 i = 0;
1308 stypes = mgmt_stypes[ift].rx;
1309 while (stypes) {
1310 if ((stypes & 1) &&
1311 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1312 (i << 4) | IEEE80211_FTYPE_MGMT))
1313 return -ENOBUFS;
1314 stypes >>= 1;
1315 i++;
1316 }
1317 nla_nest_end(msg, nl_ftypes);
1318 }
1319 nla_nest_end(msg, nl_ifs);
ee688b00 1320
3713b4e3
JB		 1321 return 0;
1322}
ee688b00 1323
1794899e
JB		 1324#define CMD(op, n) \
1325 do { \
1326 if (rdev->ops->op) { \
1327 i++; \
1328 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1329 goto nla_put_failure; \
1330 } \
1331 } while (0)
1332
1333static int nl80211_add_commands_unsplit(struct cfg80211_registered_device *rdev,
1334 struct sk_buff *msg)
1335{
1336 int i = 0;
1337
1338 /*
1339 * do *NOT* add anything into this function, new things need to be
1340 * advertised only to new versions of userspace that can deal with
1341 * the split (and they can't possibly care about new features...
1342 */
1343 CMD(add_virtual_intf, NEW_INTERFACE);
1344 CMD(change_virtual_intf, SET_INTERFACE);
1345 CMD(add_key, NEW_KEY);
1346 CMD(start_ap, START_AP);
1347 CMD(add_station, NEW_STATION);
1348 CMD(add_mpath, NEW_MPATH);
1349 CMD(update_mesh_config, SET_MESH_CONFIG);
1350 CMD(change_bss, SET_BSS);
1351 CMD(auth, AUTHENTICATE);
1352 CMD(assoc, ASSOCIATE);
1353 CMD(deauth, DEAUTHENTICATE);
1354 CMD(disassoc, DISASSOCIATE);
1355 CMD(join_ibss, JOIN_IBSS);
1356 CMD(join_mesh, JOIN_MESH);
1357 CMD(set_pmksa, SET_PMKSA);
1358 CMD(del_pmksa, DEL_PMKSA);
1359 CMD(flush_pmksa, FLUSH_PMKSA);
1360 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1361 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1362 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1363 CMD(mgmt_tx, FRAME);
1364 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1365 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1366 i++;
1367 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1368 goto nla_put_failure;
1369 }
1370 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1371 rdev->ops->join_mesh) {
1372 i++;
1373 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1374 goto nla_put_failure;
1375 }
1376 CMD(set_wds_peer, SET_WDS_PEER);
1377 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1378 CMD(tdls_mgmt, TDLS_MGMT);
1379 CMD(tdls_oper, TDLS_OPER);
1380 }
ca986ad9 1381 if (rdev->wiphy.max_sched_scan_reqs)
1794899e
JB		 1382 CMD(sched_scan_start, START_SCHED_SCAN);
1383 CMD(probe_client, PROBE_CLIENT);
1384 CMD(set_noack_map, SET_NOACK_MAP);
1385 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1386 i++;
1387 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1388 goto nla_put_failure;
1389 }
1390 CMD(start_p2p_device, START_P2P_DEVICE);
1391 CMD(set_mcast_rate, SET_MCAST_RATE);
1392#ifdef CONFIG_NL80211_TESTMODE
1393 CMD(testmode_cmd, TESTMODE);
1394#endif
1395
1396 if (rdev->ops->connect || rdev->ops->auth) {
1397 i++;
1398 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1399 goto nla_put_failure;
1400 }
1401
1402 if (rdev->ops->disconnect || rdev->ops->deauth) {
1403 i++;
1404 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1405 goto nla_put_failure;
1406 }
1407
1408 return i;
1409 nla_put_failure:
1410 return -ENOBUFS;
1411}
1412
86e8cf98
JB		 1413struct nl80211_dump_wiphy_state {
1414 s64 filter_wiphy;
1415 long start;
019ae3a9 1416 long split_start, band_start, chan_start, capa_start;
86e8cf98
JB		 1417 bool split;
1418};
1419
1b8ec87a 1420static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1421 enum nl80211_commands cmd,
3713b4e3 1422 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1423 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1424{
1425 void *hdr;
1426 struct nlattr *nl_bands, *nl_band;
1427 struct nlattr *nl_freqs, *nl_freq;
1428 struct nlattr *nl_cmds;
57fbcce3 1429 enum nl80211_band band;
3713b4e3
JB		 1430 struct ieee80211_channel *chan;
1431 int i;
1432 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1433 rdev->wiphy.mgmt_stypes;
fe1abafd 1434 u32 features;
ee688b00 1435
3bb20556 1436 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1437 if (!hdr)
1438 return -ENOBUFS;
ee688b00 1439
86e8cf98
JB		 1440 if (WARN_ON(!state))
1441 return -EINVAL;
ee688b00 1442
1b8ec87a 1443 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1444 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1445 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1446 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1447 cfg80211_rdev_list_generation))
8fdc621d
JB		 1448 goto nla_put_failure;
1449
3bb20556
JB		 1450 if (cmd != NL80211_CMD_NEW_WIPHY)
1451 goto finish;
1452
86e8cf98 1453 switch (state->split_start) {
3713b4e3
JB		 1454 case 0:
1455 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1456 rdev->wiphy.retry_short) ||
3713b4e3 1457 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1458 rdev->wiphy.retry_long) ||
3713b4e3 1459 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1460 rdev->wiphy.frag_threshold) ||
3713b4e3 1461 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1462 rdev->wiphy.rts_threshold) ||
3713b4e3 1463 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1464 rdev->wiphy.coverage_class) ||
3713b4e3 1465 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1466 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1467 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1468 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1469 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1470 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1471 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1472 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1473 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1474 rdev->wiphy.max_match_sets) ||
1475 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1476 rdev->wiphy.max_sched_scan_plans) ||
1477 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1478 rdev->wiphy.max_sched_scan_plan_interval) ||
1479 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1480 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1481 goto nla_put_failure;
3713b4e3 1482
1b8ec87a 1483 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1484 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1485 goto nla_put_failure;
1b8ec87a 1486 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1487 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1488 goto nla_put_failure;
1b8ec87a 1489 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1490 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1491 goto nla_put_failure;
1b8ec87a 1492 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1493 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1494 goto nla_put_failure;
1b8ec87a 1495 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1496 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1497 goto nla_put_failure;
1b8ec87a 1498 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1499 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1500 goto nla_put_failure;
86e8cf98
JB		 1501 state->split_start++;
1502 if (state->split)
3713b4e3
JB		 1503 break;
1504 case 1:
1505 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1506 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1507 rdev->wiphy.cipher_suites))
3713b4e3 1508 goto nla_put_failure;
4745fc09 1509
3713b4e3 1510 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1511 rdev->wiphy.max_num_pmkids))
3713b4e3 1512 goto nla_put_failure;
b23aa676 1513
1b8ec87a 1514 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1515 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1516 goto nla_put_failure;
b23aa676 1517
3713b4e3 1518 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1519 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1520 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1521 rdev->wiphy.available_antennas_rx))
9360ffd1 1522 goto nla_put_failure;
b23aa676 1523
1b8ec87a 1524 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1525 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1526 rdev->wiphy.probe_resp_offload))
3713b4e3 1527 goto nla_put_failure;
8fdc621d 1528
1b8ec87a
ZG		 1529 if ((rdev->wiphy.available_antennas_tx ||
1530 rdev->wiphy.available_antennas_rx) &&
1531 rdev->ops->get_antenna) {
3713b4e3
JB		 1532 u32 tx_ant = 0, rx_ant = 0;
1533 int res;
7a087e74 1534
1b8ec87a 1535 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1536 if (!res) {
1537 if (nla_put_u32(msg,
1538 NL80211_ATTR_WIPHY_ANTENNA_TX,
1539 tx_ant) ||
1540 nla_put_u32(msg,
1541 NL80211_ATTR_WIPHY_ANTENNA_RX,
1542 rx_ant))
1543 goto nla_put_failure;
1544 }
1545 }
a293911d 1546
86e8cf98
JB		 1547 state->split_start++;
1548 if (state->split)
3713b4e3
JB		 1549 break;
1550 case 2:
1551 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1552 rdev->wiphy.interface_modes))
3713b4e3 1553 goto nla_put_failure;
86e8cf98
JB		 1554 state->split_start++;
1555 if (state->split)
3713b4e3
JB		 1556 break;
1557 case 3:
1558 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1559 if (!nl_bands)
1560 goto nla_put_failure;
f7ca38df 1561
86e8cf98 1562 for (band = state->band_start;
57fbcce3 1563 band < NUM_NL80211_BANDS; band++) {
3713b4e3 1564 struct ieee80211_supported_band *sband;
2e161f78 1565
1b8ec87a 1566 sband = rdev->wiphy.bands[band];
2e161f78 1567
3713b4e3
JB		 1568 if (!sband)
1569 continue;
1570
1571 nl_band = nla_nest_start(msg, band);
1572 if (!nl_band)
2e161f78 1573 goto nla_put_failure;
3713b4e3 1574
86e8cf98 1575 switch (state->chan_start) {
3713b4e3
JB		 1576 case 0:
1577 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1578 goto nla_put_failure;
86e8cf98
JB		 1579 state->chan_start++;
1580 if (state->split)
3713b4e3
JB		 1581 break;
1582 default:
1583 /* add frequencies */
1584 nl_freqs = nla_nest_start(
1585 msg, NL80211_BAND_ATTR_FREQS);
1586 if (!nl_freqs)
1587 goto nla_put_failure;
1588
86e8cf98 1589 for (i = state->chan_start - 1;
3713b4e3
JB		 1590 i < sband->n_channels;
1591 i++) {
1592 nl_freq = nla_nest_start(msg, i);
1593 if (!nl_freq)
1594 goto nla_put_failure;
1595
1596 chan = &sband->channels[i];
1597
86e8cf98
JB		 1598 if (nl80211_msg_put_channel(
1599 msg, chan,
1600 state->split))
3713b4e3
JB		 1601 goto nla_put_failure;
1602
1603 nla_nest_end(msg, nl_freq);
86e8cf98 1604 if (state->split)
3713b4e3
JB		 1605 break;
1606 }
1607 if (i < sband->n_channels)
86e8cf98 1608 state->chan_start = i + 2;
3713b4e3 1609 else
86e8cf98 1610 state->chan_start = 0;
3713b4e3
JB		 1611 nla_nest_end(msg, nl_freqs);
1612 }
1613
1614 nla_nest_end(msg, nl_band);
1615
86e8cf98 1616 if (state->split) {
3713b4e3 1617 /* start again here */
86e8cf98 1618 if (state->chan_start)
3713b4e3
JB		 1619 band--;
1620 break;
2e161f78 1621 }
2e161f78 1622 }
3713b4e3 1623 nla_nest_end(msg, nl_bands);
2e161f78 1624
57fbcce3 1625 if (band < NUM_NL80211_BANDS)
86e8cf98 1626 state->band_start = band + 1;
3713b4e3 1627 else
86e8cf98 1628 state->band_start = 0;
74b70a4e 1629
3713b4e3 1630 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1631 if (state->band_start == 0 && state->chan_start == 0)
1632 state->split_start++;
1633 if (state->split)
3713b4e3
JB		 1634 break;
1635 case 4:
1636 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1637 if (!nl_cmds)
2e161f78
JB		 1638 goto nla_put_failure;
1639
1794899e
JB		 1640 i = nl80211_add_commands_unsplit(rdev, msg);
1641 if (i < 0)
1642 goto nla_put_failure;
86e8cf98 1643 if (state->split) {
5de17984
AS		 1644 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1645 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1646 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1647 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1648 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1649 if (rdev->wiphy.features &
1650 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1651 CMD(add_tx_ts, ADD_TX_TS);
ce0ce13a 1652 CMD(set_multicast_to_unicast, SET_MULTICAST_TO_UNICAST);
088e8df8 1653 CMD(update_connect_params, UPDATE_CONNECT_PARAMS);
5de17984 1654 }
3713b4e3 1655#undef CMD
ff1b6e69 1656
3713b4e3 1657 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1658 state->split_start++;
1659 if (state->split)
3713b4e3
JB		 1660 break;
1661 case 5:
1b8ec87a
ZG		 1662 if (rdev->ops->remain_on_channel &&
1663 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1664 nla_put_u32(msg,
1665 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1666 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1667 goto nla_put_failure;
1668
1b8ec87a 1669 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1670 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1671 goto nla_put_failure;
1672
1673 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1674 goto nla_put_failure;
86e8cf98
JB		 1675 state->split_start++;
1676 if (state->split)
3713b4e3
JB		 1677 break;
1678 case 6:
1679#ifdef CONFIG_PM
1b8ec87a 1680 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1681 goto nla_put_failure;
86e8cf98
JB		 1682 state->split_start++;
1683 if (state->split)
3713b4e3
JB		 1684 break;
1685#else
86e8cf98 1686 state->split_start++;
dfb89c56 1687#endif
3713b4e3
JB		 1688 case 7:
1689 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1690 rdev->wiphy.software_iftypes))
3713b4e3 1691 goto nla_put_failure;
ff1b6e69 1692
1b8ec87a 1693 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1694 state->split))
3713b4e3 1695 goto nla_put_failure;
7527a782 1696
86e8cf98
JB		 1697 state->split_start++;
1698 if (state->split)
3713b4e3
JB		 1699 break;
1700 case 8:
1b8ec87a 1701 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1702 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1703 rdev->wiphy.ap_sme_capa))
3713b4e3 1704 goto nla_put_failure;
7527a782 1705
1b8ec87a 1706 features = rdev->wiphy.features;
fe1abafd
JB		 1707 /*
1708 * We can only add the per-channel limit information if the
1709 * dump is split, otherwise it makes it too big. Therefore
1710 * only advertise it in that case.
1711 */
86e8cf98 1712 if (state->split)
fe1abafd
JB		 1713 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1714 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1715 goto nla_put_failure;
562a7480 1716
1b8ec87a 1717 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1718 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1719 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1720 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1721 goto nla_put_failure;
1f074bd8 1722
1b8ec87a
ZG		 1723 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1724 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1725 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1726 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1727 goto nla_put_failure;
7e7c8926 1728
3713b4e3
JB		 1729 /*
1730 * Any information below this point is only available to
1731 * applications that can deal with it being split. This
1732 * helps ensure that newly added capabilities don't break
1733 * older tools by overrunning their buffers.
1734 *
1735 * We still increment split_start so that in the split
1736 * case we'll continue with more data in the next round,
1737 * but break unconditionally so unsplit data stops here.
1738 */
86e8cf98 1739 state->split_start++;
3713b4e3
JB		 1740 break;
1741 case 9:
1b8ec87a 1742 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1743 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1744 rdev->wiphy.extended_capabilities_len,
1745 rdev->wiphy.extended_capabilities) ||
fe1abafd 1746 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1747 rdev->wiphy.extended_capabilities_len,
1748 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1749 goto nla_put_failure;
a50df0c4 1750
1b8ec87a 1751 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1752 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1753 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1754 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1755 goto nla_put_failure;
1756
be29b99a
AK		 1757 state->split_start++;
1758 break;
1759 case 10:
1b8ec87a 1760 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1761 goto nla_put_failure;
1762
1b8ec87a 1763 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1764 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1765 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1766 goto nla_put_failure;
b43504cf 1767
1b8ec87a 1768 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1769 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1770 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1771 goto nla_put_failure;
1772
ad7e718c
JB		 1773 state->split_start++;
1774 break;
1775 case 11:
1b8ec87a 1776 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1777 const struct nl80211_vendor_cmd_info *info;
1778 struct nlattr *nested;
1779
1780 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1781 if (!nested)
1782 goto nla_put_failure;
1783
1b8ec87a
ZG		 1784 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1785 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1786 if (nla_put(msg, i + 1, sizeof(*info), info))
1787 goto nla_put_failure;
1788 }
1789 nla_nest_end(msg, nested);
1790 }
1791
1b8ec87a 1792 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1793 const struct nl80211_vendor_cmd_info *info;
1794 struct nlattr *nested;
ad7e718c 1795
567ffc35
JB		 1796 nested = nla_nest_start(msg,
1797 NL80211_ATTR_VENDOR_EVENTS);
1798 if (!nested)
ad7e718c 1799 goto nla_put_failure;
567ffc35 1800
1b8ec87a
ZG		 1801 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1802 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1803 if (nla_put(msg, i + 1, sizeof(*info), info))
1804 goto nla_put_failure;
1805 }
1806 nla_nest_end(msg, nested);
1807 }
9a774c78
AO		 1808 state->split_start++;
1809 break;
1810 case 12:
1811 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1812 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1813 rdev->wiphy.max_num_csa_counters))
1814 goto nla_put_failure;
01e0daa4 1815
1bdd716c
AN		 1816 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1817 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1818 goto nla_put_failure;
1819
ca986ad9
AVS		 1820 if (rdev->wiphy.max_sched_scan_reqs &&
1821 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_MAX_REQS,
1822 rdev->wiphy.max_sched_scan_reqs))
1823 goto nla_put_failure;
1824
d75bb06b
GKS		 1825 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1826 sizeof(rdev->wiphy.ext_features),
1827 rdev->wiphy.ext_features))
1828 goto nla_put_failure;
1829
38de03d2
AS		 1830 if (rdev->wiphy.bss_select_support) {
1831 struct nlattr *nested;
1832 u32 bss_select_support = rdev->wiphy.bss_select_support;
1833
1834 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1835 if (!nested)
1836 goto nla_put_failure;
1837
1838 i = 0;
1839 while (bss_select_support) {
1840 if ((bss_select_support & 1) &&
1841 nla_put_flag(msg, i))
1842 goto nla_put_failure;
1843 i++;
1844 bss_select_support >>= 1;
1845 }
1846 nla_nest_end(msg, nested);
1847 }
1848
019ae3a9
KV		 1849 state->split_start++;
1850 break;
1851 case 13:
1852 if (rdev->wiphy.num_iftype_ext_capab &&
1853 rdev->wiphy.iftype_ext_capab) {
1854 struct nlattr *nested_ext_capab, *nested;
1855
1856 nested = nla_nest_start(msg,
1857 NL80211_ATTR_IFTYPE_EXT_CAPA);
1858 if (!nested)
1859 goto nla_put_failure;
1860
1861 for (i = state->capa_start;
1862 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1863 const struct wiphy_iftype_ext_capab *capab;
1864
1865 capab = &rdev->wiphy.iftype_ext_capab[i];
1866
1867 nested_ext_capab = nla_nest_start(msg, i);
1868 if (!nested_ext_capab ||
1869 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1870 capab->iftype) ||
1871 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1872 capab->extended_capabilities_len,
1873 capab->extended_capabilities) ||
1874 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1875 capab->extended_capabilities_len,
1876 capab->extended_capabilities_mask))
1877 goto nla_put_failure;
1878
1879 nla_nest_end(msg, nested_ext_capab);
1880 if (state->split)
1881 break;
1882 }
1883 nla_nest_end(msg, nested);
1884 if (i < rdev->wiphy.num_iftype_ext_capab) {
1885 state->capa_start = i + 1;
1886 break;
1887 }
1888 }
1889
8585989d
LC		 1890 if (nla_put_u32(msg, NL80211_ATTR_BANDS,
1891 rdev->wiphy.nan_supported_bands))
1892 goto nla_put_failure;
1893
3713b4e3 1894 /* done */
86e8cf98 1895 state->split_start = 0;
3713b4e3
JB		 1896 break;
1897 }
3bb20556 1898 finish:
053c095a
JB		 1899 genlmsg_end(msg, hdr);
1900 return 0;
55682965
JB		 1901
1902 nla_put_failure:
bc3ed28c
TG		 1903 genlmsg_cancel(msg, hdr);
1904 return -EMSGSIZE;
55682965
JB		 1905}
1906
86e8cf98
JB		 1907static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1908 struct netlink_callback *cb,
1909 struct nl80211_dump_wiphy_state *state)
1910{
c90c39da 1911 struct nlattr **tb = genl_family_attrbuf(&nl80211_fam);
fceb6435
JB		 1912 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, tb,
1913 nl80211_fam.maxattr, nl80211_policy, NULL);
86e8cf98
JB		 1914 /* ignore parse errors for backward compatibility */
1915 if (ret)
1916 return 0;
1917
1918 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1919 if (tb[NL80211_ATTR_WIPHY])
1920 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1921 if (tb[NL80211_ATTR_WDEV])
1922 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1923 if (tb[NL80211_ATTR_IFINDEX]) {
1924 struct net_device *netdev;
1925 struct cfg80211_registered_device *rdev;
1926 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1927
7f2b8562 1928 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1929 if (!netdev)
1930 return -ENODEV;
1931 if (netdev->ieee80211_ptr) {
f26cbf40 1932 rdev = wiphy_to_rdev(
86e8cf98
JB		 1933 netdev->ieee80211_ptr->wiphy);
1934 state->filter_wiphy = rdev->wiphy_idx;
1935 }
86e8cf98
JB		 1936 }
1937
1938 return 0;
1939}
1940
55682965
JB		 1941static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1942{
645e77de 1943 int idx = 0, ret;
86e8cf98 1944 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1945 struct cfg80211_registered_device *rdev;
3a5a423b 1946
5fe231e8 1947 rtnl_lock();
86e8cf98
JB		 1948 if (!state) {
1949 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1950 if (!state) {
1951 rtnl_unlock();
86e8cf98 1952 return -ENOMEM;
3713b4e3 1953 }
86e8cf98
JB		 1954 state->filter_wiphy = -1;
1955 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1956 if (ret) {
1957 kfree(state);
1958 rtnl_unlock();
1959 return ret;
3713b4e3 1960 }
86e8cf98 1961 cb->args[0] = (long)state;
3713b4e3
JB		 1962 }
1963
1b8ec87a
ZG		 1964 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1965 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1966 continue;
86e8cf98 1967 if (++idx <= state->start)
55682965 1968 continue;
86e8cf98 1969 if (state->filter_wiphy != -1 &&
1b8ec87a 1970 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1971 continue;
1972 /* attempt to fit multiple wiphy data chunks into the skb */
1973 do {
3bb20556
JB		 1974 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1975 skb,
3713b4e3
JB		 1976 NETLINK_CB(cb->skb).portid,
1977 cb->nlh->nlmsg_seq,
86e8cf98 1978 NLM_F_MULTI, state);
3713b4e3
JB		 1979 if (ret < 0) {
1980 /*
1981 * If sending the wiphy data didn't fit (ENOBUFS
1982 * or EMSGSIZE returned), this SKB is still
1983 * empty (so it's not too big because another
1984 * wiphy dataset is already in the skb) and
1985 * we've not tried to adjust the dump allocation
1986 * yet ... then adjust the alloc size to be
1987 * bigger, and return 1 but with the empty skb.
1988 * This results in an empty message being RX'ed
1989 * in userspace, but that is ignored.
1990 *
1991 * We can then retry with the larger buffer.
1992 */
1993 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1994 !skb->len && !state->split &&
3713b4e3
JB		 1995 cb->min_dump_alloc < 4096) {
1996 cb->min_dump_alloc = 4096;
f12cb289 1997 state->split_start = 0;
d98cae64 1998 rtnl_unlock();
3713b4e3
JB		 1999 return 1;
2000 }
2001 idx--;
2002 break;
645e77de 2003 }
86e8cf98 2004 } while (state->split_start > 0);
3713b4e3 2005 break;
55682965 2006 }
5fe231e8 2007 rtnl_unlock();
55682965 2008
86e8cf98 2009 state->start = idx;
55682965
JB		 2010
2011 return skb->len;
2012}
2013
86e8cf98
JB		 2014static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
2015{
2016 kfree((void *)cb->args[0]);
2017 return 0;
2018}
2019
55682965
JB		 2020static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
2021{
2022 struct sk_buff *msg;
1b8ec87a 2023 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 2024 struct nl80211_dump_wiphy_state state = {};
55682965 2025
645e77de 2026 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 2027 if (!msg)
4c476991 2028 return -ENOMEM;
55682965 2029
3bb20556
JB		 2030 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
2031 info->snd_portid, info->snd_seq, 0,
86e8cf98 2032 &state) < 0) {
4c476991
JB		 2033 nlmsg_free(msg);
2034 return -ENOBUFS;
2035 }
55682965 2036
134e6375 2037 return genlmsg_reply(msg, info);
55682965
JB		 2038}
2039
31888487
JM		 2040static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
2041 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
2042 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
2043 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
2044 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
2045 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
2046};
2047
2048static int parse_txq_params(struct nlattr *tb[],
2049 struct ieee80211_txq_params *txq_params)
2050{
a3304b0a 2051 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 2052 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
2053 !tb[NL80211_TXQ_ATTR_AIFS])
2054 return -EINVAL;
2055
a3304b0a 2056 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 2057 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
2058 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
2059 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
2060 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
2061
a3304b0a
JB		 2062 if (txq_params->ac >= NL80211_NUM_ACS)
2063 return -EINVAL;
2064
31888487
JM		 2065 return 0;
2066}
2067
f444de05
JB		 2068static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2069{
2070 /*
cc1d2806
JB		 2071 * You can only set the channel explicitly for WDS interfaces,
2072 * all others have their channel managed via their respective
2073 * "establish a connection" command (connect, join, ...)
2074 *
2075 * For AP/GO and mesh mode, the channel can be set with the
2076 * channel userspace API, but is only stored and passed to the
2077 * low-level driver when the AP starts or the mesh is joined.
2078 * This is for backward compatibility, userspace can also give
2079 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 2080 *
2081 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 2082 * whatever else is going on, so they have their own special
2083 * operation to set the monitor channel if possible.
f444de05
JB		 2084 */
2085 return !wdev ||
2086 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 2087 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 2088 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2089 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 2090}
2091
683b6d3b
JB		 2092static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2093 struct genl_info *info,
2094 struct cfg80211_chan_def *chandef)
2095{
dbeca2ea 2096 u32 control_freq;
683b6d3b
JB		 2097
2098 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2099 return -EINVAL;
2100
2101 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2102
2103 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 2104 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2105 chandef->center_freq1 = control_freq;
2106 chandef->center_freq2 = 0;
683b6d3b
JB		 2107
2108 /* Primary channel not allowed */
2109 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2110 return -EINVAL;
2111
3d9d1d66
JB		 2112 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2113 enum nl80211_channel_type chantype;
2114
2115 chantype = nla_get_u32(
2116 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2117
2118 switch (chantype) {
2119 case NL80211_CHAN_NO_HT:
2120 case NL80211_CHAN_HT20:
2121 case NL80211_CHAN_HT40PLUS:
2122 case NL80211_CHAN_HT40MINUS:
2123 cfg80211_chandef_create(chandef, chandef->chan,
2124 chantype);
2125 break;
2126 default:
2127 return -EINVAL;
2128 }
2129 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2130 chandef->width =
2131 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2132 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2133 chandef->center_freq1 =
2134 nla_get_u32(
2135 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2136 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2137 chandef->center_freq2 =
2138 nla_get_u32(
2139 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2140 }
2141
9f5e8f6e 2142 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 2143 return -EINVAL;
2144
9f5e8f6e
JB		 2145 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2146 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 2147 return -EINVAL;
2148
2f301ab2
SW		 2149 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2150 chandef->width == NL80211_CHAN_WIDTH_10) &&
2151 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2152 return -EINVAL;
2153
683b6d3b
JB		 2154 return 0;
2155}
2156
f444de05 2157static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 2158 struct net_device *dev,
f444de05
JB		 2159 struct genl_info *info)
2160{
683b6d3b 2161 struct cfg80211_chan_def chandef;
f444de05 2162 int result;
e8c9bd5b 2163 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2164 struct wireless_dev *wdev = NULL;
e8c9bd5b 2165
e16821bc
JM		 2166 if (dev)
2167 wdev = dev->ieee80211_ptr;
f444de05
JB		 2168 if (!nl80211_can_set_dev_channel(wdev))
2169 return -EOPNOTSUPP;
e16821bc
JM		 2170 if (wdev)
2171 iftype = wdev->iftype;
f444de05 2172
683b6d3b
JB		 2173 result = nl80211_parse_chandef(rdev, info, &chandef);
2174 if (result)
2175 return result;
f444de05 2176
e8c9bd5b 2177 switch (iftype) {
aa430da4
JB		 2178 case NL80211_IFTYPE_AP:
2179 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2180 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2181 iftype)) {
aa430da4
JB		 2182 result = -EINVAL;
2183 break;
2184 }
e16821bc
JM		 2185 if (wdev->beacon_interval) {
2186 if (!dev || !rdev->ops->set_ap_chanwidth ||
2187 !(rdev->wiphy.features &
2188 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2189 result = -EBUSY;
2190 break;
2191 }
2192
2193 /* Only allow dynamic channel width changes */
2194 if (chandef.chan != wdev->preset_chandef.chan) {
2195 result = -EBUSY;
2196 break;
2197 }
2198 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2199 if (result)
2200 break;
2201 }
683b6d3b 2202 wdev->preset_chandef = chandef;
aa430da4
JB		 2203 result = 0;
2204 break;
cc1d2806 2205 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2206 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2207 break;
e8c9bd5b 2208 case NL80211_IFTYPE_MONITOR:
683b6d3b 2209 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2210 break;
aa430da4 2211 default:
e8c9bd5b 2212 result = -EINVAL;
f444de05 2213 }
f444de05
JB		 2214
2215 return result;
2216}
2217
2218static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2219{
4c476991
JB		 2220 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2221 struct net_device *netdev = info->user_ptr[1];
f444de05 2222
e16821bc 2223 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2224}
2225
e8347eba
BJ		 2226static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2227{
43b19952
JB		 2228 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2229 struct net_device *dev = info->user_ptr[1];
2230 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2231 const u8 *bssid;
e8347eba
BJ		 2232
2233 if (!info->attrs[NL80211_ATTR_MAC])
2234 return -EINVAL;
2235
43b19952
JB		 2236 if (netif_running(dev))
2237 return -EBUSY;
e8347eba 2238
43b19952
JB		 2239 if (!rdev->ops->set_wds_peer)
2240 return -EOPNOTSUPP;
e8347eba 2241
43b19952
JB		 2242 if (wdev->iftype != NL80211_IFTYPE_WDS)
2243 return -EOPNOTSUPP;
e8347eba
BJ		 2244
2245 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2246 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2247}
2248
55682965
JB		 2249static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2250{
2251 struct cfg80211_registered_device *rdev;
f444de05
JB		 2252 struct net_device *netdev = NULL;
2253 struct wireless_dev *wdev;
a1e567c8 2254 int result = 0, rem_txq_params = 0;
31888487 2255 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2256 u32 changed;
2257 u8 retry_short = 0, retry_long = 0;
2258 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2259 u8 coverage_class = 0;
55682965 2260
5fe231e8
JB		 2261 ASSERT_RTNL();
2262
f444de05
JB		 2263 /*
2264 * Try to find the wiphy and netdev. Normally this
2265 * function shouldn't need the netdev, but this is
2266 * done for backward compatibility -- previously
2267 * setting the channel was done per wiphy, but now
2268 * it is per netdev. Previous userland like hostapd
2269 * also passed a netdev to set_wiphy, so that it is
2270 * possible to let that go to the right netdev!
2271 */
4bbf4d56 2272
f444de05
JB		 2273 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2274 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2275
7f2b8562 2276 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2277 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2278 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2279 else
f444de05 2280 netdev = NULL;
4bbf4d56
JB		 2281 }
2282
f444de05 2283 if (!netdev) {
878d9ec7
JB		 2284 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2285 info->attrs);
5fe231e8 2286 if (IS_ERR(rdev))
4c476991 2287 return PTR_ERR(rdev);
f444de05
JB		 2288 wdev = NULL;
2289 netdev = NULL;
2290 result = 0;
71fe96bf 2291 } else
f444de05 2292 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2293
2294 /*
2295 * end workaround code, by now the rdev is available
2296 * and locked, and wdev may or may not be NULL.
2297 */
4bbf4d56
JB		 2298
2299 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2300 result = cfg80211_dev_rename(
2301 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2302
4bbf4d56 2303 if (result)
7f2b8562 2304 return result;
31888487
JM		 2305
2306 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2307 struct ieee80211_txq_params txq_params;
2308 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2309
7f2b8562
YX		 2310 if (!rdev->ops->set_txq_params)
2311 return -EOPNOTSUPP;
31888487 2312
7f2b8562
YX		 2313 if (!netdev)
2314 return -EINVAL;
f70f01c2 2315
133a3ff2 2316 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2317 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2318 return -EINVAL;
133a3ff2 2319
7f2b8562
YX		 2320 if (!netif_running(netdev))
2321 return -ENETDOWN;
2b5f8b0b 2322
31888487
JM		 2323 nla_for_each_nested(nl_txq_params,
2324 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2325 rem_txq_params) {
bfe2c7b1
JB		 2326 result = nla_parse_nested(tb, NL80211_TXQ_ATTR_MAX,
2327 nl_txq_params,
fe52145f
JB		 2328 txq_params_policy,
2329 info->extack);
ae811e21
JB		 2330 if (result)
2331 return result;
31888487
JM		 2332 result = parse_txq_params(tb, &txq_params);
2333 if (result)
7f2b8562 2334 return result;
31888487 2335
e35e4d28
HG		 2336 result = rdev_set_txq_params(rdev, netdev,
2337 &txq_params);
31888487 2338 if (result)
7f2b8562 2339 return result;
31888487
JM		 2340 }
2341 }
55682965 2342
72bdcf34 2343 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2344 result = __nl80211_set_channel(
2345 rdev,
2346 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2347 info);
72bdcf34 2348 if (result)
7f2b8562 2349 return result;
72bdcf34
JM		 2350 }
2351
98d2ff8b 2352 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2353 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2354 enum nl80211_tx_power_setting type;
2355 int idx, mbm = 0;
2356
c8442118
JB		 2357 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2358 txp_wdev = NULL;
2359
7f2b8562
YX		 2360 if (!rdev->ops->set_tx_power)
2361 return -EOPNOTSUPP;
98d2ff8b
JO		 2362
2363 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2364 type = nla_get_u32(info->attrs[idx]);
2365
2366 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2367 (type != NL80211_TX_POWER_AUTOMATIC))
2368 return -EINVAL;
98d2ff8b
JO		 2369
2370 if (type != NL80211_TX_POWER_AUTOMATIC) {
2371 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2372 mbm = nla_get_u32(info->attrs[idx]);
2373 }
2374
c8442118 2375 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2376 if (result)
7f2b8562 2377 return result;
98d2ff8b
JO		 2378 }
2379
afe0cbf8
BR		 2380 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2381 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2382 u32 tx_ant, rx_ant;
7a087e74 2383
7f531e03
BR		 2384 if ((!rdev->wiphy.available_antennas_tx &&
2385 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2386 !rdev->ops->set_antenna)
2387 return -EOPNOTSUPP;
afe0cbf8
BR		 2388
2389 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2390 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2391
a7ffac95 2392 /* reject antenna configurations which don't match the
7f531e03
BR		 2393 * available antenna masks, except for the "all" mask */
2394 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2395 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2396 return -EINVAL;
a7ffac95 2397
7f531e03
BR		 2398 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2399 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2400
e35e4d28 2401 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2402 if (result)
7f2b8562 2403 return result;
afe0cbf8
BR		 2404 }
2405
b9a5f8ca
JM		 2406 changed = 0;
2407
2408 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2409 retry_short = nla_get_u8(
2410 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2411 if (retry_short == 0)
2412 return -EINVAL;
2413
b9a5f8ca
JM		 2414 changed |= WIPHY_PARAM_RETRY_SHORT;
2415 }
2416
2417 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2418 retry_long = nla_get_u8(
2419 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2420 if (retry_long == 0)
2421 return -EINVAL;
2422
b9a5f8ca
JM		 2423 changed |= WIPHY_PARAM_RETRY_LONG;
2424 }
2425
2426 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2427 frag_threshold = nla_get_u32(
2428 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2429 if (frag_threshold < 256)
2430 return -EINVAL;
2431
b9a5f8ca
JM		 2432 if (frag_threshold != (u32) -1) {
2433 /*
2434 * Fragments (apart from the last one) are required to
2435 * have even length. Make the fragmentation code
2436 * simpler by stripping LSB should someone try to use
2437 * odd threshold value.
2438 */
2439 frag_threshold &= ~0x1;
2440 }
2441 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2442 }
2443
2444 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2445 rts_threshold = nla_get_u32(
2446 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2447 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2448 }
2449
81077e82 2450 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2451 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2452 return -EINVAL;
2453
81077e82
LT		 2454 coverage_class = nla_get_u8(
2455 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2456 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2457 }
2458
3057dbfd
LB		 2459 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2460 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2461 return -EOPNOTSUPP;
2462
2463 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2464 }
2465
b9a5f8ca
JM		 2466 if (changed) {
2467 u8 old_retry_short, old_retry_long;
2468 u32 old_frag_threshold, old_rts_threshold;
81077e82 2469 u8 old_coverage_class;
b9a5f8ca 2470
7f2b8562
YX		 2471 if (!rdev->ops->set_wiphy_params)
2472 return -EOPNOTSUPP;
b9a5f8ca
JM		 2473
2474 old_retry_short = rdev->wiphy.retry_short;
2475 old_retry_long = rdev->wiphy.retry_long;
2476 old_frag_threshold = rdev->wiphy.frag_threshold;
2477 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2478 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2479
2480 if (changed & WIPHY_PARAM_RETRY_SHORT)
2481 rdev->wiphy.retry_short = retry_short;
2482 if (changed & WIPHY_PARAM_RETRY_LONG)
2483 rdev->wiphy.retry_long = retry_long;
2484 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2485 rdev->wiphy.frag_threshold = frag_threshold;
2486 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2487 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2488 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2489 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2490
e35e4d28 2491 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2492 if (result) {
2493 rdev->wiphy.retry_short = old_retry_short;
2494 rdev->wiphy.retry_long = old_retry_long;
2495 rdev->wiphy.frag_threshold = old_frag_threshold;
2496 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2497 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2498 return result;
b9a5f8ca
JM		 2499 }
2500 }
7f2b8562 2501 return 0;
55682965
JB		 2502}
2503
71bbc994
JB		 2504static inline u64 wdev_id(struct wireless_dev *wdev)
2505{
2506 return (u64)wdev->identifier |
f26cbf40 2507 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2508}
55682965 2509
683b6d3b 2510static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2511 const struct cfg80211_chan_def *chandef)
683b6d3b 2512{
601555cd
JB		 2513 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2514 return -EINVAL;
3d9d1d66 2515
683b6d3b
JB		 2516 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2517 chandef->chan->center_freq))
2518 return -ENOBUFS;
3d9d1d66
JB		 2519 switch (chandef->width) {
2520 case NL80211_CHAN_WIDTH_20_NOHT:
2521 case NL80211_CHAN_WIDTH_20:
2522 case NL80211_CHAN_WIDTH_40:
2523 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2524 cfg80211_get_chandef_type(chandef)))
2525 return -ENOBUFS;
2526 break;
2527 default:
2528 break;
2529 }
2530 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2531 return -ENOBUFS;
2532 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2533 return -ENOBUFS;
2534 if (chandef->center_freq2 &&
2535 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2536 return -ENOBUFS;
2537 return 0;
2538}
2539
15e47304 2540static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2541 struct cfg80211_registered_device *rdev,
8f894be2 2542 struct wireless_dev *wdev, bool removal)
55682965 2543{
72fb2abc 2544 struct net_device *dev = wdev->netdev;
8f894be2 2545 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2546 void *hdr;
2547
8f894be2
TB		 2548 if (removal)
2549 cmd = NL80211_CMD_DEL_INTERFACE;
2550
2551 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2552 if (!hdr)
2553 return -1;
2554
72fb2abc
JB		 2555 if (dev &&
2556 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2557 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2558 goto nla_put_failure;
2559
2560 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2561 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2dad624e
ND		 2562 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2563 NL80211_ATTR_PAD) ||
98104fde 2564 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2565 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2566 rdev->devlist_generation ^
2567 (cfg80211_rdev_list_generation << 2)))
2568 goto nla_put_failure;
f5ea9120 2569
5b7ccaf3 2570 if (rdev->ops->get_channel) {
683b6d3b
JB		 2571 int ret;
2572 struct cfg80211_chan_def chandef;
2573
2574 ret = rdev_get_channel(rdev, wdev, &chandef);
2575 if (ret == 0) {
2576 if (nl80211_send_chandef(msg, &chandef))
2577 goto nla_put_failure;
2578 }
d91df0e3
PF		 2579 }
2580
d55d0d59
RM		 2581 if (rdev->ops->get_tx_power) {
2582 int dbm, ret;
2583
2584 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2585 if (ret == 0 &&
2586 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2587 DBM_TO_MBM(dbm)))
2588 goto nla_put_failure;
2589 }
2590
b84e7a05
AQ		 2591 if (wdev->ssid_len) {
2592 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2593 goto nla_put_failure;
2594 }
2595
053c095a
JB		 2596 genlmsg_end(msg, hdr);
2597 return 0;
55682965
JB		 2598
2599 nla_put_failure:
bc3ed28c
TG		 2600 genlmsg_cancel(msg, hdr);
2601 return -EMSGSIZE;
55682965
JB		 2602}
2603
2604static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2605{
2606 int wp_idx = 0;
2607 int if_idx = 0;
2608 int wp_start = cb->args[0];
2609 int if_start = cb->args[1];
b7fb44da 2610 int filter_wiphy = -1;
f5ea9120 2611 struct cfg80211_registered_device *rdev;
55682965 2612 struct wireless_dev *wdev;
ea90e0dc 2613 int ret;
55682965 2614
5fe231e8 2615 rtnl_lock();
b7fb44da
DK		 2616 if (!cb->args[2]) {
2617 struct nl80211_dump_wiphy_state state = {
2618 .filter_wiphy = -1,
2619 };
b7fb44da
DK		 2620
2621 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2622 if (ret)
ea90e0dc 2623 goto out_unlock;
b7fb44da
DK		 2624
2625 filter_wiphy = state.filter_wiphy;
2626
2627 /*
2628 * if filtering, set cb->args[2] to +1 since 0 is the default
2629 * value needed to determine that parsing is necessary.
2630 */
2631 if (filter_wiphy >= 0)
2632 cb->args[2] = filter_wiphy + 1;
2633 else
2634 cb->args[2] = -1;
2635 } else if (cb->args[2] > 0) {
2636 filter_wiphy = cb->args[2] - 1;
2637 }
2638
f5ea9120
JB		 2639 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2640 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2641 continue;
bba95fef
JB		 2642 if (wp_idx < wp_start) {
2643 wp_idx++;
55682965 2644 continue;
bba95fef 2645 }
b7fb44da
DK		 2646
2647 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2648 continue;
2649
55682965
JB		 2650 if_idx = 0;
2651
53873f13 2652 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
bba95fef
JB		 2653 if (if_idx < if_start) {
2654 if_idx++;
55682965 2655 continue;
bba95fef 2656 }
15e47304 2657 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2658 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2659 rdev, wdev, false) < 0) {
bba95fef
JB		 2660 goto out;
2661 }
2662 if_idx++;
55682965 2663 }
bba95fef
JB		 2664
2665 wp_idx++;
55682965 2666 }
bba95fef 2667 out:
55682965
JB		 2668 cb->args[0] = wp_idx;
2669 cb->args[1] = if_idx;
2670
ea90e0dc
JB		 2671 ret = skb->len;
2672 out_unlock:
2673 rtnl_unlock();
2674
2675 return ret;
55682965
JB		 2676}
2677
2678static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2679{
2680 struct sk_buff *msg;
1b8ec87a 2681 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2682 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2683
fd2120ca 2684 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2685 if (!msg)
4c476991 2686 return -ENOMEM;
55682965 2687
15e47304 2688 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2689 rdev, wdev, false) < 0) {
4c476991
JB		 2690 nlmsg_free(msg);
2691 return -ENOBUFS;
2692 }
55682965 2693
134e6375 2694 return genlmsg_reply(msg, info);
55682965
JB		 2695}
2696
66f7ac50
MW		 2697static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2698 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2699 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2700 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2701 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2702 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2703 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2704};
2705
2706static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2707{
2708 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2709 int flag;
2710
2711 *mntrflags = 0;
2712
2713 if (!nla)
2714 return -EINVAL;
2715
fceb6435
JB		 2716 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, nla,
2717 mntr_flags_policy, NULL))
66f7ac50
MW		 2718 return -EINVAL;
2719
2720 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2721 if (flags[flag])
2722 *mntrflags |= (1<<flag);
2723
818a986e
JB		 2724 *mntrflags |= MONITOR_FLAG_CHANGED;
2725
66f7ac50
MW		 2726 return 0;
2727}
2728
1db77596
JB		 2729static int nl80211_parse_mon_options(struct cfg80211_registered_device *rdev,
2730 enum nl80211_iftype type,
2731 struct genl_info *info,
2732 struct vif_params *params)
2733{
2734 bool change = false;
2735 int err;
2736
2737 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2738 if (type != NL80211_IFTYPE_MONITOR)
2739 return -EINVAL;
2740
2741 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2742 &params->flags);
2743 if (err)
2744 return err;
2745
2746 change = true;
2747 }
2748
2749 if (params->flags & MONITOR_FLAG_ACTIVE &&
2750 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2751 return -EOPNOTSUPP;
2752
2753 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2754 const u8 *mumimo_groups;
2755 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2756
2757 if (type != NL80211_IFTYPE_MONITOR)
2758 return -EINVAL;
2759
2760 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2761 return -EOPNOTSUPP;
2762
2763 mumimo_groups =
2764 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2765
2766 /* bits 0 and 63 are reserved and must be zero */
4954601f
JB		 2767 if ((mumimo_groups[0] & BIT(0)) ||
2768 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(7)))
1db77596
JB		 2769 return -EINVAL;
2770
2771 params->vht_mumimo_groups = mumimo_groups;
2772 change = true;
2773 }
2774
2775 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2776 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2777
2778 if (type != NL80211_IFTYPE_MONITOR)
2779 return -EINVAL;
2780
2781 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2782 return -EOPNOTSUPP;
2783
2784 params->vht_mumimo_follow_addr =
2785 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]);
2786 change = true;
2787 }
2788
2789 return change ? 1 : 0;
2790}
2791
9bc383de 2792static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2793 struct net_device *netdev, u8 use_4addr,
2794 enum nl80211_iftype iftype)
9bc383de 2795{
ad4bb6f8 2796 if (!use_4addr) {
f350a0a8 2797 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2798 return -EBUSY;
9bc383de 2799 return 0;
ad4bb6f8 2800 }
9bc383de
JB		 2801
2802 switch (iftype) {
2803 case NL80211_IFTYPE_AP_VLAN:
2804 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2805 return 0;
2806 break;
2807 case NL80211_IFTYPE_STATION:
2808 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2809 return 0;
2810 break;
2811 default:
2812 break;
2813 }
2814
2815 return -EOPNOTSUPP;
2816}
2817
55682965
JB		 2818static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2819{
4c476991 2820 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2821 struct vif_params params;
e36d56b6 2822 int err;
04a773ad 2823 enum nl80211_iftype otype, ntype;
4c476991 2824 struct net_device *dev = info->user_ptr[1];
ac7f9cfa 2825 bool change = false;
55682965 2826
2ec600d6
LCC		 2827 memset(&params, 0, sizeof(params));
2828
04a773ad 2829 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2830
723b038d 2831 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2832 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2833 if (otype != ntype)
ac7f9cfa 2834 change = true;
4c476991
JB		 2835 if (ntype > NL80211_IFTYPE_MAX)
2836 return -EINVAL;
723b038d
JB		 2837 }
2838
92ffe055 2839 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2840 struct wireless_dev *wdev = dev->ieee80211_ptr;
2841
4c476991
JB		 2842 if (ntype != NL80211_IFTYPE_MESH_POINT)
2843 return -EINVAL;
29cbe68c
JB		 2844 if (netif_running(dev))
2845 return -EBUSY;
2846
2847 wdev_lock(wdev);
2848 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2849 IEEE80211_MAX_MESH_ID_LEN);
2850 wdev->mesh_id_up_len =
2851 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2852 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2853 wdev->mesh_id_up_len);
2854 wdev_unlock(wdev);
2ec600d6
LCC		 2855 }
2856
8b787643
FF		 2857 if (info->attrs[NL80211_ATTR_4ADDR]) {
2858 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2859 change = true;
ad4bb6f8 2860 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2861 if (err)
4c476991 2862 return err;
8b787643
FF		 2863 } else {
2864 params.use_4addr = -1;
2865 }
2866
1db77596
JB		 2867 err = nl80211_parse_mon_options(rdev, ntype, info, &params);
2868 if (err < 0)
2869 return err;
2870 if (err > 0)
c6e6a0c8 2871 change = true;
e057d3c3 2872
ac7f9cfa 2873 if (change)
818a986e 2874 err = cfg80211_change_iface(rdev, dev, ntype, &params);
ac7f9cfa
JB		 2875 else
2876 err = 0;
60719ffd 2877
9bc383de
JB		 2878 if (!err && params.use_4addr != -1)
2879 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2880
55682965
JB		 2881 return err;
2882}
2883
2884static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2885{
4c476991 2886 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2887 struct vif_params params;
84efbb84 2888 struct wireless_dev *wdev;
896ff063 2889 struct sk_buff *msg;
55682965
JB		 2890 int err;
2891 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2892
78f22b6a
JB		 2893 /* to avoid failing a new interface creation due to pending removal */
2894 cfg80211_destroy_ifaces(rdev);
2895
2ec600d6
LCC		 2896 memset(&params, 0, sizeof(params));
2897
55682965
JB		 2898 if (!info->attrs[NL80211_ATTR_IFNAME])
2899 return -EINVAL;
2900
2901 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2902 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2903 if (type > NL80211_IFTYPE_MAX)
2904 return -EINVAL;
2905 }
2906
79c97e97 2907 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2908 !(rdev->wiphy.interface_modes & (1 << type)))
2909 return -EOPNOTSUPP;
55682965 2910
cb3b7d87 2911 if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
e8f479b1
BG		 2912 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2913 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2914 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2915 ETH_ALEN);
2916 if (!is_valid_ether_addr(params.macaddr))
2917 return -EADDRNOTAVAIL;
2918 }
2919
9bc383de 2920 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2921 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2922 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2923 if (err)
4c476991 2924 return err;
9bc383de 2925 }
8b787643 2926
1db77596
JB		 2927 err = nl80211_parse_mon_options(rdev, type, info, &params);
2928 if (err < 0)
2929 return err;
e057d3c3 2930
a18c7192
JB		 2931 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2932 if (!msg)
2933 return -ENOMEM;
2934
e35e4d28
HG		 2935 wdev = rdev_add_virtual_intf(rdev,
2936 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
818a986e 2937 NET_NAME_USER, type, &params);
d687cbb7
RM		 2938 if (WARN_ON(!wdev)) {
2939 nlmsg_free(msg);
2940 return -EPROTO;
2941 } else if (IS_ERR(wdev)) {
1c90f9d4 2942 nlmsg_free(msg);
84efbb84 2943 return PTR_ERR(wdev);
1c90f9d4 2944 }
2ec600d6 2945
18e5ca65 2946 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2947 wdev->owner_nlportid = info->snd_portid;
2948
98104fde
JB		 2949 switch (type) {
2950 case NL80211_IFTYPE_MESH_POINT:
2951 if (!info->attrs[NL80211_ATTR_MESH_ID])
2952 break;
29cbe68c
JB		 2953 wdev_lock(wdev);
2954 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2955 IEEE80211_MAX_MESH_ID_LEN);
2956 wdev->mesh_id_up_len =
2957 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2958 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2959 wdev->mesh_id_up_len);
2960 wdev_unlock(wdev);
98104fde 2961 break;
cb3b7d87 2962 case NL80211_IFTYPE_NAN:
98104fde
JB		 2963 case NL80211_IFTYPE_P2P_DEVICE:
2964 /*
cb3b7d87 2965 * P2P Device and NAN do not have a netdev, so don't go
98104fde
JB		 2966 * through the netdev notifier and must be added here
2967 */
2968 mutex_init(&wdev->mtx);
2969 INIT_LIST_HEAD(&wdev->event_list);
2970 spin_lock_init(&wdev->event_lock);
2971 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2972 spin_lock_init(&wdev->mgmt_registrations_lock);
2973
98104fde 2974 wdev->identifier = ++rdev->wdev_id;
53873f13 2975 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
98104fde 2976 rdev->devlist_generation++;
98104fde
JB		 2977 break;
2978 default:
2979 break;
29cbe68c
JB		 2980 }
2981
15e47304 2982 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2983 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2984 nlmsg_free(msg);
2985 return -ENOBUFS;
2986 }
2987
896ff063
DK		 2988 /*
2989 * For wdevs which have no associated netdev object (e.g. of type
2990 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
2991 * For all other types, the event will be generated from the
2992 * netdev notifier
2993 */
2994 if (!wdev->netdev)
2995 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
8f894be2 2996
1c90f9d4 2997 return genlmsg_reply(msg, info);
55682965
JB		 2998}
2999
3000static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
3001{
4c476991 3002 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 3003 struct wireless_dev *wdev = info->user_ptr[1];
55682965 3004
4c476991
JB		 3005 if (!rdev->ops->del_virtual_intf)
3006 return -EOPNOTSUPP;
55682965 3007
84efbb84
JB		 3008 /*
3009 * If we remove a wireless device without a netdev then clear
3010 * user_ptr[1] so that nl80211_post_doit won't dereference it
3011 * to check if it needs to do dev_put(). Otherwise it crashes
3012 * since the wdev has been freed, unlike with a netdev where
3013 * we need the dev_put() for the netdev to really be freed.
3014 */
3015 if (!wdev->netdev)
3016 info->user_ptr[1] = NULL;
3017
7f8ed01e 3018 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 3019}
3020
1d9d9213
SW		 3021static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
3022{
3023 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3024 struct net_device *dev = info->user_ptr[1];
3025 u16 noack_map;
3026
3027 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
3028 return -EINVAL;
3029
3030 if (!rdev->ops->set_noack_map)
3031 return -EOPNOTSUPP;
3032
3033 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
3034
e35e4d28 3035 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 3036}
3037
41ade00f
JB		 3038struct get_key_cookie {
3039 struct sk_buff *msg;
3040 int error;
b9454e83 3041 int idx;
41ade00f
JB		 3042};
3043
3044static void get_key_callback(void *c, struct key_params *params)
3045{
b9454e83 3046 struct nlattr *key;
41ade00f
JB		 3047 struct get_key_cookie *cookie = c;
3048
9360ffd1
DM		 3049 if ((params->key &&
3050 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
3051 params->key_len, params->key)) ||
3052 (params->seq &&
3053 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
3054 params->seq_len, params->seq)) ||
3055 (params->cipher &&
3056 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
3057 params->cipher)))
3058 goto nla_put_failure;
41ade00f 3059
b9454e83
JB		 3060 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
3061 if (!key)
3062 goto nla_put_failure;
3063
9360ffd1
DM		 3064 if ((params->key &&
3065 nla_put(cookie->msg, NL80211_KEY_DATA,
3066 params->key_len, params->key)) ||
3067 (params->seq &&
3068 nla_put(cookie->msg, NL80211_KEY_SEQ,
3069 params->seq_len, params->seq)) ||
3070 (params->cipher &&
3071 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
3072 params->cipher)))
3073 goto nla_put_failure;
b9454e83 3074
9360ffd1
DM		 3075 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
3076 goto nla_put_failure;
b9454e83
JB		 3077
3078 nla_nest_end(cookie->msg, key);
3079
41ade00f
JB		 3080 return;
3081 nla_put_failure:
3082 cookie->error = 1;
3083}
3084
3085static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3086{
4c476991 3087 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3088 int err;
4c476991 3089 struct net_device *dev = info->user_ptr[1];
41ade00f 3090 u8 key_idx = 0;
e31b8213
JB		 3091 const u8 *mac_addr = NULL;
3092 bool pairwise;
41ade00f
JB		 3093 struct get_key_cookie cookie = {
3094 .error = 0,
3095 };
3096 void *hdr;
3097 struct sk_buff *msg;
3098
3099 if (info->attrs[NL80211_ATTR_KEY_IDX])
3100 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3101
3cfcf6ac 3102 if (key_idx > 5)
41ade00f
JB		 3103 return -EINVAL;
3104
3105 if (info->attrs[NL80211_ATTR_MAC])
3106 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3107
e31b8213
JB		 3108 pairwise = !!mac_addr;
3109 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3110 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
7a087e74 3111
e31b8213
JB		 3112 if (kt >= NUM_NL80211_KEYTYPES)
3113 return -EINVAL;
3114 if (kt != NL80211_KEYTYPE_GROUP &&
3115 kt != NL80211_KEYTYPE_PAIRWISE)
3116 return -EINVAL;
3117 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3118 }
3119
4c476991
JB		 3120 if (!rdev->ops->get_key)
3121 return -EOPNOTSUPP;
41ade00f 3122
0fa7b391
JB		 3123 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3124 return -ENOENT;
3125
fd2120ca 3126 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3127 if (!msg)
3128 return -ENOMEM;
41ade00f 3129
15e47304 3130 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 3131 NL80211_CMD_NEW_KEY);
cb35fba3 3132 if (!hdr)
9fe271af 3133 goto nla_put_failure;
41ade00f
JB		 3134
3135 cookie.msg = msg;
b9454e83 3136 cookie.idx = key_idx;
41ade00f 3137
9360ffd1
DM		 3138 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3139 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3140 goto nla_put_failure;
3141 if (mac_addr &&
3142 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3143 goto nla_put_failure;
41ade00f 3144
e35e4d28
HG		 3145 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3146 get_key_callback);
41ade00f
JB		 3147
3148 if (err)
6c95e2a2 3149 goto free_msg;
41ade00f
JB		 3150
3151 if (cookie.error)
3152 goto nla_put_failure;
3153
3154 genlmsg_end(msg, hdr);
4c476991 3155 return genlmsg_reply(msg, info);
41ade00f
JB		 3156
3157 nla_put_failure:
3158 err = -ENOBUFS;
6c95e2a2 3159 free_msg:
41ade00f 3160 nlmsg_free(msg);
41ade00f
JB		 3161 return err;
3162}
3163
3164static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3165{
4c476991 3166 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 3167 struct key_parse key;
41ade00f 3168 int err;
4c476991 3169 struct net_device *dev = info->user_ptr[1];
41ade00f 3170
b9454e83
JB		 3171 err = nl80211_parse_key(info, &key);
3172 if (err)
3173 return err;
41ade00f 3174
b9454e83 3175 if (key.idx < 0)
41ade00f
JB		 3176 return -EINVAL;
3177
b9454e83
JB		 3178 /* only support setting default key */
3179 if (!key.def && !key.defmgmt)
41ade00f
JB		 3180 return -EINVAL;
3181
dbd2fd65 3182 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 3183
dbd2fd65
JB		 3184 if (key.def) {
3185 if (!rdev->ops->set_default_key) {
3186 err = -EOPNOTSUPP;
3187 goto out;
3188 }
41ade00f 3189
dbd2fd65
JB		 3190 err = nl80211_key_allowed(dev->ieee80211_ptr);
3191 if (err)
3192 goto out;
3193
e35e4d28 3194 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 3195 key.def_uni, key.def_multi);
3196
3197 if (err)
3198 goto out;
fffd0934 3199
3d23e349 3200#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 3201 dev->ieee80211_ptr->wext.default_key = key.idx;
3202#endif
3203 } else {
3204 if (key.def_uni || !key.def_multi) {
3205 err = -EINVAL;
3206 goto out;
3207 }
3208
3209 if (!rdev->ops->set_default_mgmt_key) {
3210 err = -EOPNOTSUPP;
3211 goto out;
3212 }
3213
3214 err = nl80211_key_allowed(dev->ieee80211_ptr);
3215 if (err)
3216 goto out;
3217
e35e4d28 3218 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 3219 if (err)
3220 goto out;
3221
3222#ifdef CONFIG_CFG80211_WEXT
3223 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3224#endif
dbd2fd65
JB		 3225 }
3226
3227 out:
fffd0934 3228 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3229
41ade00f
JB		 3230 return err;
3231}
3232
3233static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3234{
4c476991 3235 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3236 int err;
4c476991 3237 struct net_device *dev = info->user_ptr[1];
b9454e83 3238 struct key_parse key;
e31b8213 3239 const u8 *mac_addr = NULL;
41ade00f 3240
b9454e83
JB		 3241 err = nl80211_parse_key(info, &key);
3242 if (err)
3243 return err;
41ade00f 3244
b9454e83 3245 if (!key.p.key)
41ade00f
JB		 3246 return -EINVAL;
3247
41ade00f
JB		 3248 if (info->attrs[NL80211_ATTR_MAC])
3249 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3250
e31b8213
JB		 3251 if (key.type == -1) {
3252 if (mac_addr)
3253 key.type = NL80211_KEYTYPE_PAIRWISE;
3254 else
3255 key.type = NL80211_KEYTYPE_GROUP;
3256 }
3257
3258 /* for now */
3259 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3260 key.type != NL80211_KEYTYPE_GROUP)
3261 return -EINVAL;
3262
4c476991
JB		 3263 if (!rdev->ops->add_key)
3264 return -EOPNOTSUPP;
25e47c18 3265
e31b8213
JB		 3266 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3267 key.type == NL80211_KEYTYPE_PAIRWISE,
3268 mac_addr))
4c476991 3269 return -EINVAL;
41ade00f 3270
fffd0934
JB		 3271 wdev_lock(dev->ieee80211_ptr);
3272 err = nl80211_key_allowed(dev->ieee80211_ptr);
3273 if (!err)
e35e4d28
HG		 3274 err = rdev_add_key(rdev, dev, key.idx,
3275 key.type == NL80211_KEYTYPE_PAIRWISE,
3276 mac_addr, &key.p);
fffd0934 3277 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3278
41ade00f
JB		 3279 return err;
3280}
3281
3282static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3283{
4c476991 3284 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3285 int err;
4c476991 3286 struct net_device *dev = info->user_ptr[1];
41ade00f 3287 u8 *mac_addr = NULL;
b9454e83 3288 struct key_parse key;
41ade00f 3289
b9454e83
JB		 3290 err = nl80211_parse_key(info, &key);
3291 if (err)
3292 return err;
41ade00f
JB		 3293
3294 if (info->attrs[NL80211_ATTR_MAC])
3295 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3296
e31b8213
JB		 3297 if (key.type == -1) {
3298 if (mac_addr)
3299 key.type = NL80211_KEYTYPE_PAIRWISE;
3300 else
3301 key.type = NL80211_KEYTYPE_GROUP;
3302 }
3303
3304 /* for now */
3305 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3306 key.type != NL80211_KEYTYPE_GROUP)
3307 return -EINVAL;
3308
4c476991
JB		 3309 if (!rdev->ops->del_key)
3310 return -EOPNOTSUPP;
41ade00f 3311
fffd0934
JB		 3312 wdev_lock(dev->ieee80211_ptr);
3313 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3314
0fa7b391 3315 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3316 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3317 err = -ENOENT;
3318
fffd0934 3319 if (!err)
e35e4d28
HG		 3320 err = rdev_del_key(rdev, dev, key.idx,
3321 key.type == NL80211_KEYTYPE_PAIRWISE,
3322 mac_addr);
41ade00f 3323
3d23e349 3324#ifdef CONFIG_CFG80211_WEXT
08645126 3325 if (!err) {
b9454e83 3326 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3327 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3328 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3329 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3330 }
3331#endif
fffd0934 3332 wdev_unlock(dev->ieee80211_ptr);
08645126 3333
41ade00f
JB		 3334 return err;
3335}
3336
77765eaf
VT		 3337/* This function returns an error or the number of nested attributes */
3338static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3339{
3340 struct nlattr *attr;
3341 int n_entries = 0, tmp;
3342
3343 nla_for_each_nested(attr, nl_attr, tmp) {
3344 if (nla_len(attr) != ETH_ALEN)
3345 return -EINVAL;
3346
3347 n_entries++;
3348 }
3349
3350 return n_entries;
3351}
3352
3353/*
3354 * This function parses ACL information and allocates memory for ACL data.
3355 * On successful return, the calling function is responsible to free the
3356 * ACL buffer returned by this function.
3357 */
3358static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3359 struct genl_info *info)
3360{
3361 enum nl80211_acl_policy acl_policy;
3362 struct nlattr *attr;
3363 struct cfg80211_acl_data *acl;
3364 int i = 0, n_entries, tmp;
3365
3366 if (!wiphy->max_acl_mac_addrs)
3367 return ERR_PTR(-EOPNOTSUPP);
3368
3369 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3370 return ERR_PTR(-EINVAL);
3371
3372 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3373 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3374 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3375 return ERR_PTR(-EINVAL);
3376
3377 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3378 return ERR_PTR(-EINVAL);
3379
3380 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3381 if (n_entries < 0)
3382 return ERR_PTR(n_entries);
3383
3384 if (n_entries > wiphy->max_acl_mac_addrs)
3385 return ERR_PTR(-ENOTSUPP);
3386
3387 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3388 GFP_KERNEL);
3389 if (!acl)
3390 return ERR_PTR(-ENOMEM);
3391
3392 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3393 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3394 i++;
3395 }
3396
3397 acl->n_acl_entries = n_entries;
3398 acl->acl_policy = acl_policy;
3399
3400 return acl;
3401}
3402
3403static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3404{
3405 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3406 struct net_device *dev = info->user_ptr[1];
3407 struct cfg80211_acl_data *acl;
3408 int err;
3409
3410 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3411 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3412 return -EOPNOTSUPP;
3413
3414 if (!dev->ieee80211_ptr->beacon_interval)
3415 return -EINVAL;
3416
3417 acl = parse_acl_data(&rdev->wiphy, info);
3418 if (IS_ERR(acl))
3419 return PTR_ERR(acl);
3420
3421 err = rdev_set_mac_acl(rdev, dev, acl);
3422
3423 kfree(acl);
3424
3425 return err;
3426}
3427
a7c7fbff
PK		 3428static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
3429 u8 *rates, u8 rates_len)
3430{
3431 u8 i;
3432 u32 mask = 0;
3433
3434 for (i = 0; i < rates_len; i++) {
3435 int rate = (rates[i] & 0x7f) * 5;
3436 int ridx;
3437
3438 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
3439 struct ieee80211_rate *srate =
3440 &sband->bitrates[ridx];
3441 if (rate == srate->bitrate) {
3442 mask |= 1 << ridx;
3443 break;
3444 }
3445 }
3446 if (ridx == sband->n_bitrates)
3447 return 0; /* rate not found */
3448 }
3449
3450 return mask;
3451}
3452
3453static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
3454 u8 *rates, u8 rates_len,
3455 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
3456{
3457 u8 i;
3458
3459 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
3460
3461 for (i = 0; i < rates_len; i++) {
3462 int ridx, rbit;
3463
3464 ridx = rates[i] / 8;
3465 rbit = BIT(rates[i] % 8);
3466
3467 /* check validity */
3468 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
3469 return false;
3470
3471 /* check availability */
3472 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
3473 mcs[ridx] |= rbit;
3474 else
3475 return false;
3476 }
3477
3478 return true;
3479}
3480
3481static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
3482{
3483 u16 mcs_mask = 0;
3484
3485 switch (vht_mcs_map) {
3486 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
3487 break;
3488 case IEEE80211_VHT_MCS_SUPPORT_0_7:
3489 mcs_mask = 0x00FF;
3490 break;
3491 case IEEE80211_VHT_MCS_SUPPORT_0_8:
3492 mcs_mask = 0x01FF;
3493 break;
3494 case IEEE80211_VHT_MCS_SUPPORT_0_9:
3495 mcs_mask = 0x03FF;
3496 break;
3497 default:
3498 break;
3499 }
3500
3501 return mcs_mask;
3502}
3503
3504static void vht_build_mcs_mask(u16 vht_mcs_map,
3505 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
3506{
3507 u8 nss;
3508
3509 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
3510 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
3511 vht_mcs_map >>= 2;
3512 }
3513}
3514
3515static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
3516 struct nl80211_txrate_vht *txrate,
3517 u16 mcs[NL80211_VHT_NSS_MAX])
3518{
3519 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3520 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
3521 u8 i;
3522
3523 if (!sband->vht_cap.vht_supported)
3524 return false;
3525
3526 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
3527
3528 /* Build vht_mcs_mask from VHT capabilities */
3529 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
3530
3531 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3532 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
3533 mcs[i] = txrate->mcs[i];
3534 else
3535 return false;
3536 }
3537
3538 return true;
3539}
3540
3541static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
3542 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
3543 .len = NL80211_MAX_SUPP_RATES },
3544 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
3545 .len = NL80211_MAX_SUPP_HT_RATES },
3546 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
3547 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
3548};
3549
3550static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
3551 struct cfg80211_bitrate_mask *mask)
3552{
3553 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
3554 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3555 int rem, i;
3556 struct nlattr *tx_rates;
3557 struct ieee80211_supported_band *sband;
3558 u16 vht_tx_mcs_map;
3559
3560 memset(mask, 0, sizeof(*mask));
3561 /* Default to all rates enabled */
3562 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3563 sband = rdev->wiphy.bands[i];
3564
3565 if (!sband)
3566 continue;
3567
3568 mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
3569 memcpy(mask->control[i].ht_mcs,
3570 sband->ht_cap.mcs.rx_mask,
3571 sizeof(mask->control[i].ht_mcs));
3572
3573 if (!sband->vht_cap.vht_supported)
3574 continue;
3575
3576 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3577 vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
3578 }
3579
3580 /* if no rates are given set it back to the defaults */
3581 if (!info->attrs[NL80211_ATTR_TX_RATES])
3582 goto out;
3583
3584 /* The nested attribute uses enum nl80211_band as the index. This maps
3585 * directly to the enum nl80211_band values used in cfg80211.
3586 */
3587 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
3588 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
3589 enum nl80211_band band = nla_type(tx_rates);
3590 int err;
3591
3592 if (band < 0 || band >= NUM_NL80211_BANDS)
3593 return -EINVAL;
3594 sband = rdev->wiphy.bands[band];
3595 if (sband == NULL)
3596 return -EINVAL;
bfe2c7b1 3597 err = nla_parse_nested(tb, NL80211_TXRATE_MAX, tx_rates,
fe52145f 3598 nl80211_txattr_policy, info->extack);
a7c7fbff
PK		 3599 if (err)
3600 return err;
3601 if (tb[NL80211_TXRATE_LEGACY]) {
3602 mask->control[band].legacy = rateset_to_mask(
3603 sband,
3604 nla_data(tb[NL80211_TXRATE_LEGACY]),
3605 nla_len(tb[NL80211_TXRATE_LEGACY]));
3606 if ((mask->control[band].legacy == 0) &&
3607 nla_len(tb[NL80211_TXRATE_LEGACY]))
3608 return -EINVAL;
3609 }
3610 if (tb[NL80211_TXRATE_HT]) {
3611 if (!ht_rateset_to_mask(
3612 sband,
3613 nla_data(tb[NL80211_TXRATE_HT]),
3614 nla_len(tb[NL80211_TXRATE_HT]),
3615 mask->control[band].ht_mcs))
3616 return -EINVAL;
3617 }
3618 if (tb[NL80211_TXRATE_VHT]) {
3619 if (!vht_set_mcs_mask(
3620 sband,
3621 nla_data(tb[NL80211_TXRATE_VHT]),
3622 mask->control[band].vht_mcs))
3623 return -EINVAL;
3624 }
3625 if (tb[NL80211_TXRATE_GI]) {
3626 mask->control[band].gi =
3627 nla_get_u8(tb[NL80211_TXRATE_GI]);
3628 if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
3629 return -EINVAL;
3630 }
3631
3632 if (mask->control[band].legacy == 0) {
3633 /* don't allow empty legacy rates if HT or VHT
3634 * are not even supported.
3635 */
3636 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
3637 rdev->wiphy.bands[band]->vht_cap.vht_supported))
3638 return -EINVAL;
3639
3640 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
3641 if (mask->control[band].ht_mcs[i])
3642 goto out;
3643
3644 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
3645 if (mask->control[band].vht_mcs[i])
3646 goto out;
3647
3648 /* legacy and mcs rates may not be both empty */
3649 return -EINVAL;
3650 }
3651 }
3652
3653out:
3654 return 0;
3655}
3656
8564e382
JB		 3657static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
3658 enum nl80211_band band,
3659 struct cfg80211_bitrate_mask *beacon_rate)
a7c7fbff 3660{
8564e382
JB		 3661 u32 count_ht, count_vht, i;
3662 u32 rate = beacon_rate->control[band].legacy;
a7c7fbff
PK		 3663
3664 /* Allow only one rate */
3665 if (hweight32(rate) > 1)
3666 return -EINVAL;
3667
3668 count_ht = 0;
3669 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
8564e382 3670 if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
a7c7fbff 3671 return -EINVAL;
8564e382 3672 } else if (beacon_rate->control[band].ht_mcs[i]) {
a7c7fbff
PK		 3673 count_ht++;
3674 if (count_ht > 1)
3675 return -EINVAL;
3676 }
3677 if (count_ht && rate)
3678 return -EINVAL;
3679 }
3680
3681 count_vht = 0;
3682 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8564e382 3683 if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
a7c7fbff 3684 return -EINVAL;
8564e382 3685 } else if (beacon_rate->control[band].vht_mcs[i]) {
a7c7fbff
PK		 3686 count_vht++;
3687 if (count_vht > 1)
3688 return -EINVAL;
3689 }
3690 if (count_vht && rate)
3691 return -EINVAL;
3692 }
3693
3694 if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
3695 return -EINVAL;
3696
8564e382
JB		 3697 if (rate &&
3698 !wiphy_ext_feature_isset(&rdev->wiphy,
3699 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
3700 return -EINVAL;
3701 if (count_ht &&
3702 !wiphy_ext_feature_isset(&rdev->wiphy,
3703 NL80211_EXT_FEATURE_BEACON_RATE_HT))
3704 return -EINVAL;
3705 if (count_vht &&
3706 !wiphy_ext_feature_isset(&rdev->wiphy,
3707 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
3708 return -EINVAL;
3709
a7c7fbff
PK		 3710 return 0;
3711}
3712
a1193be8 3713static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3714 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3715{
8860020e 3716 bool haveinfo = false;
ed1b6cc7 3717
a1193be8
SW		 3718 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3719 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3720 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3721 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3722 return -EINVAL;
3723
8860020e 3724 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3725
a1193be8
SW		 3726 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3727 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3728 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3729 if (!bcn->head_len)
3730 return -EINVAL;
3731 haveinfo = true;
ed1b6cc7
JB		 3732 }
3733
a1193be8
SW		 3734 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3735 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3736 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3737 haveinfo = true;
ed1b6cc7
JB		 3738 }
3739
4c476991
JB		 3740 if (!haveinfo)
3741 return -EINVAL;
3b85875a 3742
a1193be8
SW		 3743 if (attrs[NL80211_ATTR_IE]) {
3744 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3745 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3746 }
3747
a1193be8 3748 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3749 bcn->proberesp_ies =
a1193be8 3750 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3751 bcn->proberesp_ies_len =
a1193be8 3752 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3753 }
3754
a1193be8 3755 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3756 bcn->assocresp_ies =
a1193be8 3757 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3758 bcn->assocresp_ies_len =
a1193be8 3759 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3760 }
3761
a1193be8
SW		 3762 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3763 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3764 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3765 }
3766
8860020e
JB		 3767 return 0;
3768}
3769
66cd794e
JB		 3770static void nl80211_check_ap_rate_selectors(struct cfg80211_ap_settings *params,
3771 const u8 *rates)
3772{
3773 int i;
3774
3775 if (!rates)
3776 return;
3777
3778 for (i = 0; i < rates[1]; i++) {
3779 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_HT_PHY)
3780 params->ht_required = true;
3781 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_VHT_PHY)
3782 params->vht_required = true;
3783 }
3784}
3785
3786/*
3787 * Since the nl80211 API didn't include, from the beginning, attributes about
3788 * HT/VHT requirements/capabilities, we parse them out of the IEs for the
3789 * benefit of drivers that rebuild IEs in the firmware.
3790 */
3791static void nl80211_calculate_ap_params(struct cfg80211_ap_settings *params)
3792{
3793 const struct cfg80211_beacon_data *bcn = &params->beacon;
ba83bfb1
IM		 3794 size_t ies_len = bcn->tail_len;
3795 const u8 *ies = bcn->tail;
66cd794e
JB		 3796 const u8 *rates;
3797 const u8 *cap;
3798
3799 rates = cfg80211_find_ie(WLAN_EID_SUPP_RATES, ies, ies_len);
3800 nl80211_check_ap_rate_selectors(params, rates);
3801
3802 rates = cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES, ies, ies_len);
3803 nl80211_check_ap_rate_selectors(params, rates);
3804
3805 cap = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, ies_len);
3806 if (cap && cap[1] >= sizeof(*params->ht_cap))
3807 params->ht_cap = (void *)(cap + 2);
3808 cap = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, ies, ies_len);
3809 if (cap && cap[1] >= sizeof(*params->vht_cap))
3810 params->vht_cap = (void *)(cap + 2);
3811}
3812
46c1dd0c
FF		 3813static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3814 struct cfg80211_ap_settings *params)
3815{
3816 struct wireless_dev *wdev;
3817 bool ret = false;
3818
53873f13 3819 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
46c1dd0c
FF		 3820 if (wdev->iftype != NL80211_IFTYPE_AP &&
3821 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3822 continue;
3823
683b6d3b 3824 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3825 continue;
3826
683b6d3b 3827 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3828 ret = true;
3829 break;
3830 }
3831
46c1dd0c
FF		 3832 return ret;
3833}
3834
e39e5b5e
JM		 3835static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3836 enum nl80211_auth_type auth_type,
3837 enum nl80211_commands cmd)
3838{
3839 if (auth_type > NL80211_AUTHTYPE_MAX)
3840 return false;
3841
3842 switch (cmd) {
3843 case NL80211_CMD_AUTHENTICATE:
3844 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3845 auth_type == NL80211_AUTHTYPE_SAE)
3846 return false;
63181060
JM		 3847 if (!wiphy_ext_feature_isset(&rdev->wiphy,
3848 NL80211_EXT_FEATURE_FILS_STA) &&
3849 (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3850 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3851 auth_type == NL80211_AUTHTYPE_FILS_PK))
3852 return false;
e39e5b5e
JM		 3853 return true;
3854 case NL80211_CMD_CONNECT:
a3caf744
VK		 3855 /* SAE not supported yet */
3856 if (auth_type == NL80211_AUTHTYPE_SAE)
3857 return false;
3858 /* FILS with SK PFS or PK not supported yet */
3859 if (auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3860 auth_type == NL80211_AUTHTYPE_FILS_PK)
3861 return false;
3862 if (!wiphy_ext_feature_isset(
3863 &rdev->wiphy,
3864 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
3865 auth_type == NL80211_AUTHTYPE_FILS_SK)
3866 return false;
3867 return true;
e39e5b5e
JM		 3868 case NL80211_CMD_START_AP:
3869 /* SAE not supported yet */
3870 if (auth_type == NL80211_AUTHTYPE_SAE)
3871 return false;
63181060
JM		 3872 /* FILS not supported yet */
3873 if (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3874 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3875 auth_type == NL80211_AUTHTYPE_FILS_PK)
3876 return false;
e39e5b5e
JM		 3877 return true;
3878 default:
3879 return false;
3880 }
3881}
3882
8860020e
JB		 3883static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3884{
3885 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3886 struct net_device *dev = info->user_ptr[1];
3887 struct wireless_dev *wdev = dev->ieee80211_ptr;
3888 struct cfg80211_ap_settings params;
3889 int err;
3890
3891 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3892 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3893 return -EOPNOTSUPP;
3894
3895 if (!rdev->ops->start_ap)
3896 return -EOPNOTSUPP;
3897
3898 if (wdev->beacon_interval)
3899 return -EALREADY;
3900
3901 memset(&params, 0, sizeof(params));
3902
3903 /* these are required for START_AP */
3904 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3905 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3906 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3907 return -EINVAL;
3908
a1193be8 3909 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3910 if (err)
3911 return err;
3912
3913 params.beacon_interval =
3914 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3915 params.dtim_period =
3916 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3917
0c317a02
PK		 3918 err = cfg80211_validate_beacon_int(rdev, dev->ieee80211_ptr->iftype,
3919 params.beacon_interval);
8860020e
JB		 3920 if (err)
3921 return err;
3922
3923 /*
3924 * In theory, some of these attributes should be required here
3925 * but since they were not used when the command was originally
3926 * added, keep them optional for old user space programs to let
3927 * them continue to work with drivers that do not need the
3928 * additional information -- drivers must check!
3929 */
3930 if (info->attrs[NL80211_ATTR_SSID]) {
3931 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3932 params.ssid_len =
3933 nla_len(info->attrs[NL80211_ATTR_SSID]);
3934 if (params.ssid_len == 0 ||
3935 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3936 return -EINVAL;
3937 }
3938
3939 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3940 params.hidden_ssid = nla_get_u32(
3941 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3942 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3943 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3944 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3945 return -EINVAL;
3946 }
3947
3948 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3949
3950 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3951 params.auth_type = nla_get_u32(
3952 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3953 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3954 NL80211_CMD_START_AP))
8860020e
JB		 3955 return -EINVAL;
3956 } else
3957 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3958
3959 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3960 NL80211_MAX_NR_CIPHER_SUITES);
3961 if (err)
3962 return err;
3963
1b658f11
VT		 3964 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3965 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3966 return -EOPNOTSUPP;
3967 params.inactivity_timeout = nla_get_u16(
3968 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3969 }
3970
53cabad7
JB		 3971 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3972 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3973 return -EINVAL;
3974 params.p2p_ctwindow =
3975 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3976 if (params.p2p_ctwindow > 127)
3977 return -EINVAL;
3978 if (params.p2p_ctwindow != 0 &&
3979 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3980 return -EINVAL;
3981 }
3982
3983 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3984 u8 tmp;
3985
3986 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3987 return -EINVAL;
3988 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3989 if (tmp > 1)
3990 return -EINVAL;
3991 params.p2p_opp_ps = tmp;
3992 if (params.p2p_opp_ps != 0 &&
3993 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3994 return -EINVAL;
3995 }
3996
aa430da4 3997 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3998 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3999 if (err)
4000 return err;
4001 } else if (wdev->preset_chandef.chan) {
4002 params.chandef = wdev->preset_chandef;
46c1dd0c 4003 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 4004 return -EINVAL;
4005
923b352f
AN		 4006 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
4007 wdev->iftype))
aa430da4
JB		 4008 return -EINVAL;
4009
a7c7fbff
PK		 4010 if (info->attrs[NL80211_ATTR_TX_RATES]) {
4011 err = nl80211_parse_tx_bitrate_mask(info, &params.beacon_rate);
4012 if (err)
4013 return err;
4014
8564e382
JB		 4015 err = validate_beacon_tx_rate(rdev, params.chandef.chan->band,
4016 &params.beacon_rate);
a7c7fbff
PK		 4017 if (err)
4018 return err;
4019 }
4020
18998c38
EP		 4021 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
4022 params.smps_mode =
4023 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
4024 switch (params.smps_mode) {
4025 case NL80211_SMPS_OFF:
4026 break;
4027 case NL80211_SMPS_STATIC:
4028 if (!(rdev->wiphy.features &
4029 NL80211_FEATURE_STATIC_SMPS))
4030 return -EINVAL;
4031 break;
4032 case NL80211_SMPS_DYNAMIC:
4033 if (!(rdev->wiphy.features &
4034 NL80211_FEATURE_DYNAMIC_SMPS))
4035 return -EINVAL;
4036 break;
4037 default:
4038 return -EINVAL;
4039 }
4040 } else {
4041 params.smps_mode = NL80211_SMPS_OFF;
4042 }
4043
6e8ef842
PK		 4044 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
4045 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
4046 return -EOPNOTSUPP;
4047
4baf6bea
OO		 4048 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
4049 params.acl = parse_acl_data(&rdev->wiphy, info);
4050 if (IS_ERR(params.acl))
4051 return PTR_ERR(params.acl);
4052 }
4053
66cd794e
JB		 4054 nl80211_calculate_ap_params(&params);
4055
c56589ed 4056 wdev_lock(wdev);
e35e4d28 4057 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 4058 if (!err) {
683b6d3b 4059 wdev->preset_chandef = params.chandef;
8860020e 4060 wdev->beacon_interval = params.beacon_interval;
9e0e2961 4061 wdev->chandef = params.chandef;
06e191e2
AQ		 4062 wdev->ssid_len = params.ssid_len;
4063 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 4064 }
c56589ed 4065 wdev_unlock(wdev);
77765eaf
VT		 4066
4067 kfree(params.acl);
4068
56d1893d 4069 return err;
ed1b6cc7
JB		 4070}
4071
8860020e
JB		 4072static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
4073{
4074 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4075 struct net_device *dev = info->user_ptr[1];
4076 struct wireless_dev *wdev = dev->ieee80211_ptr;
4077 struct cfg80211_beacon_data params;
4078 int err;
4079
4080 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4081 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4082 return -EOPNOTSUPP;
4083
4084 if (!rdev->ops->change_beacon)
4085 return -EOPNOTSUPP;
4086
4087 if (!wdev->beacon_interval)
4088 return -EINVAL;
4089
a1193be8 4090 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 4091 if (err)
4092 return err;
4093
c56589ed
SW		 4094 wdev_lock(wdev);
4095 err = rdev_change_beacon(rdev, dev, &params);
4096 wdev_unlock(wdev);
4097
4098 return err;
8860020e
JB		 4099}
4100
4101static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 4102{
4c476991
JB		 4103 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4104 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 4105
7c8d5e03 4106 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 4107}
4108
5727ef1b
JB		 4109static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
4110 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
4111 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
4112 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 4113 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 4114 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 4115 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 4116};
4117
eccb8e8f 4118static int parse_station_flags(struct genl_info *info,
bdd3ae3d 4119 enum nl80211_iftype iftype,
eccb8e8f 4120 struct station_parameters *params)
5727ef1b
JB		 4121{
4122 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 4123 struct nlattr *nla;
5727ef1b
JB		 4124 int flag;
4125
eccb8e8f
JB		 4126 /*
4127 * Try parsing the new attribute first so userspace
4128 * can specify both for older kernels.
4129 */
4130 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
4131 if (nla) {
4132 struct nl80211_sta_flag_update *sta_flags;
4133
4134 sta_flags = nla_data(nla);
4135 params->sta_flags_mask = sta_flags->mask;
4136 params->sta_flags_set = sta_flags->set;
77ee7c89 4137 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 4138 if ((params->sta_flags_mask |
4139 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
4140 return -EINVAL;
4141 return 0;
4142 }
4143
4144 /* if present, parse the old attribute */
5727ef1b 4145
eccb8e8f 4146 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 4147 if (!nla)
4148 return 0;
4149
fceb6435 4150 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, nla,
fe52145f 4151 sta_flags_policy, info->extack))
5727ef1b
JB		 4152 return -EINVAL;
4153
bdd3ae3d
JB		 4154 /*
4155 * Only allow certain flags for interface types so that
4156 * other attributes are silently ignored. Remember that
4157 * this is backward compatibility code with old userspace
4158 * and shouldn't be hit in other cases anyway.
4159 */
4160 switch (iftype) {
4161 case NL80211_IFTYPE_AP:
4162 case NL80211_IFTYPE_AP_VLAN:
4163 case NL80211_IFTYPE_P2P_GO:
4164 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4165 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4166 BIT(NL80211_STA_FLAG_WME) |
4167 BIT(NL80211_STA_FLAG_MFP);
4168 break;
4169 case NL80211_IFTYPE_P2P_CLIENT:
4170 case NL80211_IFTYPE_STATION:
4171 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4172 BIT(NL80211_STA_FLAG_TDLS_PEER);
4173 break;
4174 case NL80211_IFTYPE_MESH_POINT:
4175 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4176 BIT(NL80211_STA_FLAG_MFP) |
4177 BIT(NL80211_STA_FLAG_AUTHORIZED);
4178 default:
4179 return -EINVAL;
4180 }
5727ef1b 4181
3383b5a6
JB		 4182 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
4183 if (flags[flag]) {
eccb8e8f 4184 params->sta_flags_set |= (1<<flag);
5727ef1b 4185
3383b5a6
JB		 4186 /* no longer support new API additions in old API */
4187 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
4188 return -EINVAL;
4189 }
4190 }
4191
5727ef1b
JB		 4192 return 0;
4193}
4194
c8dcfd8a
FF		 4195static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
4196 int attr)
4197{
4198 struct nlattr *rate;
8eb41c8d
VK		 4199 u32 bitrate;
4200 u16 bitrate_compat;
bbf67e45 4201 enum nl80211_rate_info rate_flg;
c8dcfd8a
FF		 4202
4203 rate = nla_nest_start(msg, attr);
4204 if (!rate)
db9c64cf 4205 return false;
c8dcfd8a
FF		 4206
4207 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
4208 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 4209 /* report 16-bit bitrate only if we can */
4210 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 4211 if (bitrate > 0 &&
4212 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
4213 return false;
4214 if (bitrate_compat > 0 &&
4215 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
4216 return false;
4217
b51f3bee
JB		 4218 switch (info->bw) {
4219 case RATE_INFO_BW_5:
4220 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
4221 break;
4222 case RATE_INFO_BW_10:
4223 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
4224 break;
4225 default:
4226 WARN_ON(1);
4227 /* fall through */
4228 case RATE_INFO_BW_20:
4229 rate_flg = 0;
4230 break;
4231 case RATE_INFO_BW_40:
4232 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
4233 break;
4234 case RATE_INFO_BW_80:
4235 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
4236 break;
4237 case RATE_INFO_BW_160:
4238 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
4239 break;
4240 }
4241
4242 if (rate_flg && nla_put_flag(msg, rate_flg))
4243 return false;
4244
db9c64cf
JB		 4245 if (info->flags & RATE_INFO_FLAGS_MCS) {
4246 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
4247 return false;
db9c64cf
JB		 4248 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4249 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4250 return false;
4251 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
4252 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
4253 return false;
4254 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
4255 return false;
db9c64cf
JB		 4256 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4257 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4258 return false;
4259 }
c8dcfd8a
FF		 4260
4261 nla_nest_end(msg, rate);
4262 return true;
c8dcfd8a
FF		 4263}
4264
119363c7
FF		 4265static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
4266 int id)
4267{
4268 void *attr;
4269 int i = 0;
4270
4271 if (!mask)
4272 return true;
4273
4274 attr = nla_nest_start(msg, id);
4275 if (!attr)
4276 return false;
4277
4278 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
4279 if (!(mask & BIT(i)))
4280 continue;
4281
4282 if (nla_put_u8(msg, i, signal[i]))
4283 return false;
4284 }
4285
4286 nla_nest_end(msg, attr);
4287
4288 return true;
4289}
4290
cf5ead82
JB		 4291static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
4292 u32 seq, int flags,
66266b3a
JL		 4293 struct cfg80211_registered_device *rdev,
4294 struct net_device *dev,
98b62183 4295 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 4296{
4297 void *hdr;
f4263c98 4298 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 4299
cf5ead82 4300 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 4301 if (!hdr)
4302 return -1;
4303
9360ffd1
DM		 4304 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4305 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
4306 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
4307 goto nla_put_failure;
f5ea9120 4308
2ec600d6
LCC		 4309 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
4310 if (!sinfoattr)
fd5b74dc 4311 goto nla_put_failure;
319090bf
JB		 4312
4313#define PUT_SINFO(attr, memb, type) do { \
d686b920 4314 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
739960f1 4315 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
319090bf
JB		 4316 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
4317 sinfo->memb)) \
4318 goto nla_put_failure; \
4319 } while (0)
d686b920
JB		 4320#define PUT_SINFO_U64(attr, memb) do { \
4321 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4322 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
4323 sinfo->memb, NL80211_STA_INFO_PAD)) \
4324 goto nla_put_failure; \
4325 } while (0)
319090bf
JB		 4326
4327 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
4328 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
4329
4330 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
4331 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 4332 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 4333 (u32)sinfo->rx_bytes))
9360ffd1 4334 goto nla_put_failure;
319090bf
JB		 4335
4336 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
4337 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 4338 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 4339 (u32)sinfo->tx_bytes))
4340 goto nla_put_failure;
319090bf 4341
d686b920
JB		 4342 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
4343 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
319090bf
JB		 4344 PUT_SINFO(LLID, llid, u16);
4345 PUT_SINFO(PLID, plid, u16);
4346 PUT_SINFO(PLINK_STATE, plink_state, u8);
d686b920 4347 PUT_SINFO_U64(RX_DURATION, rx_duration);
319090bf 4348
66266b3a
JL		 4349 switch (rdev->wiphy.signal_type) {
4350 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 4351 PUT_SINFO(SIGNAL, signal, u8);
4352 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 4353 break;
4354 default:
4355 break;
4356 }
319090bf 4357 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 4358 if (!nl80211_put_signal(msg, sinfo->chains,
4359 sinfo->chain_signal,
4360 NL80211_STA_INFO_CHAIN_SIGNAL))
4361 goto nla_put_failure;
4362 }
319090bf 4363 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 4364 if (!nl80211_put_signal(msg, sinfo->chains,
4365 sinfo->chain_signal_avg,
4366 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
4367 goto nla_put_failure;
4368 }
319090bf 4369 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 4370 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
4371 NL80211_STA_INFO_TX_BITRATE))
4372 goto nla_put_failure;
4373 }
319090bf 4374 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 4375 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
4376 NL80211_STA_INFO_RX_BITRATE))
420e7fab 4377 goto nla_put_failure;
420e7fab 4378 }
319090bf
JB		 4379
4380 PUT_SINFO(RX_PACKETS, rx_packets, u32);
4381 PUT_SINFO(TX_PACKETS, tx_packets, u32);
4382 PUT_SINFO(TX_RETRIES, tx_retries, u32);
4383 PUT_SINFO(TX_FAILED, tx_failed, u32);
4384 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
4385 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
4386 PUT_SINFO(LOCAL_PM, local_pm, u32);
4387 PUT_SINFO(PEER_PM, peer_pm, u32);
4388 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
4389
4390 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 4391 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
4392 if (!bss_param)
4393 goto nla_put_failure;
4394
9360ffd1
DM		 4395 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
4396 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
4397 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
4398 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
4399 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
4400 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
4401 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
4402 sinfo->bss_param.dtim_period) ||
4403 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
4404 sinfo->bss_param.beacon_interval))
4405 goto nla_put_failure;
f4263c98
PS		 4406
4407 nla_nest_end(msg, bss_param);
4408 }
319090bf 4409 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 4410 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
4411 sizeof(struct nl80211_sta_flag_update),
4412 &sinfo->sta_flags))
4413 goto nla_put_failure;
319090bf 4414
d686b920
JB		 4415 PUT_SINFO_U64(T_OFFSET, t_offset);
4416 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
4417 PUT_SINFO_U64(BEACON_RX, rx_beacon);
a76b1942 4418 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 4419
4420#undef PUT_SINFO
d686b920 4421#undef PUT_SINFO_U64
6de39808
JB		 4422
4423 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
4424 struct nlattr *tidsattr;
4425 int tid;
4426
4427 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
4428 if (!tidsattr)
4429 goto nla_put_failure;
4430
4431 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
4432 struct cfg80211_tid_stats *tidstats;
4433 struct nlattr *tidattr;
4434
4435 tidstats = &sinfo->pertid[tid];
4436
4437 if (!tidstats->filled)
4438 continue;
4439
4440 tidattr = nla_nest_start(msg, tid + 1);
4441 if (!tidattr)
4442 goto nla_put_failure;
4443
d686b920 4444#define PUT_TIDVAL_U64(attr, memb) do { \
6de39808 4445 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
d686b920
JB		 4446 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
4447 tidstats->memb, NL80211_TID_STATS_PAD)) \
6de39808
JB		 4448 goto nla_put_failure; \
4449 } while (0)
4450
d686b920
JB		 4451 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4452 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4453 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4454 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
6de39808 4455
d686b920 4456#undef PUT_TIDVAL_U64
6de39808
JB		 4457 nla_nest_end(msg, tidattr);
4458 }
4459
4460 nla_nest_end(msg, tidsattr);
4461 }
4462
2ec600d6 4463 nla_nest_end(msg, sinfoattr);
fd5b74dc 4464
319090bf 4465 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 4466 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4467 sinfo->assoc_req_ies))
4468 goto nla_put_failure;
50d3dfb7 4469
053c095a
JB		 4470 genlmsg_end(msg, hdr);
4471 return 0;
fd5b74dc
JB		 4472
4473 nla_put_failure:
bc3ed28c
TG		 4474 genlmsg_cancel(msg, hdr);
4475 return -EMSGSIZE;
fd5b74dc
JB		 4476}
4477
2ec600d6 4478static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 4479 struct netlink_callback *cb)
2ec600d6 4480{
2ec600d6 4481 struct station_info sinfo;
1b8ec87a 4482 struct cfg80211_registered_device *rdev;
97990a06 4483 struct wireless_dev *wdev;
2ec600d6 4484 u8 mac_addr[ETH_ALEN];
97990a06 4485 int sta_idx = cb->args[2];
2ec600d6 4486 int err;
2ec600d6 4487
ea90e0dc 4488 rtnl_lock();
1b8ec87a 4489 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893 4490 if (err)
ea90e0dc 4491 goto out_err;
bba95fef 4492
97990a06
JB		 4493 if (!wdev->netdev) {
4494 err = -EINVAL;
4495 goto out_err;
4496 }
4497
1b8ec87a 4498 if (!rdev->ops->dump_station) {
eec60b03 4499 err = -EOPNOTSUPP;
bba95fef
JB		 4500 goto out_err;
4501 }
4502
bba95fef 4503 while (1) {
f612cedf 4504 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 4505 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 4506 mac_addr, &sinfo);
bba95fef
JB		 4507 if (err == -ENOENT)
4508 break;
4509 if (err)
3b85875a 4510 goto out_err;
bba95fef 4511
cf5ead82 4512 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 4513 NETLINK_CB(cb->skb).portid,
bba95fef 4514 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 4515 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 4516 &sinfo) < 0)
4517 goto out;
4518
4519 sta_idx++;
4520 }
4521
bba95fef 4522 out:
97990a06 4523 cb->args[2] = sta_idx;
bba95fef 4524 err = skb->len;
bba95fef 4525 out_err:
ea90e0dc 4526 rtnl_unlock();
bba95fef
JB		 4527
4528 return err;
2ec600d6 4529}
fd5b74dc 4530
5727ef1b
JB		 4531static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4532{
4c476991
JB		 4533 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4534 struct net_device *dev = info->user_ptr[1];
2ec600d6 4535 struct station_info sinfo;
fd5b74dc
JB		 4536 struct sk_buff *msg;
4537 u8 *mac_addr = NULL;
4c476991 4538 int err;
fd5b74dc 4539
2ec600d6 4540 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 4541
4542 if (!info->attrs[NL80211_ATTR_MAC])
4543 return -EINVAL;
4544
4545 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4546
4c476991
JB		 4547 if (!rdev->ops->get_station)
4548 return -EOPNOTSUPP;
3b85875a 4549
e35e4d28 4550 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 4551 if (err)
4c476991 4552 return err;
2ec600d6 4553
fd2120ca 4554 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 4555 if (!msg)
4c476991 4556 return -ENOMEM;
fd5b74dc 4557
cf5ead82
JB		 4558 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4559 info->snd_portid, info->snd_seq, 0,
66266b3a 4560 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 4561 nlmsg_free(msg);
4562 return -ENOBUFS;
4563 }
3b85875a 4564
4c476991 4565 return genlmsg_reply(msg, info);
5727ef1b
JB		 4566}
4567
77ee7c89
JB		 4568int cfg80211_check_station_change(struct wiphy *wiphy,
4569 struct station_parameters *params,
4570 enum cfg80211_station_type statype)
4571{
e4208427
AB		 4572 if (params->listen_interval != -1 &&
4573 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4574 return -EINVAL;
e4208427 4575
17b94247
AB		 4576 if (params->support_p2p_ps != -1 &&
4577 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4578 return -EINVAL;
4579
c72e1140 4580 if (params->aid &&
e4208427
AB		 4581 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4582 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4583 return -EINVAL;
4584
4585 /* When you run into this, adjust the code below for the new flag */
4586 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4587
4588 switch (statype) {
eef941e6
TP		 4589 case CFG80211_STA_MESH_PEER_KERNEL:
4590 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4591 /*
4592 * No ignoring the TDLS flag here -- the userspace mesh
4593 * code doesn't have the bug of including TDLS in the
4594 * mask everywhere.
4595 */
4596 if (params->sta_flags_mask &
4597 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4598 BIT(NL80211_STA_FLAG_MFP) |
4599 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4600 return -EINVAL;
4601 break;
4602 case CFG80211_STA_TDLS_PEER_SETUP:
4603 case CFG80211_STA_TDLS_PEER_ACTIVE:
4604 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4605 return -EINVAL;
4606 /* ignore since it can't change */
4607 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4608 break;
4609 default:
4610 /* disallow mesh-specific things */
4611 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4612 return -EINVAL;
4613 if (params->local_pm)
4614 return -EINVAL;
4615 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4616 return -EINVAL;
4617 }
4618
4619 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4620 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4621 /* TDLS can't be set, ... */
4622 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4623 return -EINVAL;
4624 /*
4625 * ... but don't bother the driver with it. This works around
4626 * a hostapd/wpa_supplicant issue -- it always includes the
4627 * TLDS_PEER flag in the mask even for AP mode.
4628 */
4629 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4630 }
4631
47edb11b
AB		 4632 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4633 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4634 /* reject other things that can't change */
4635 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4636 return -EINVAL;
4637 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4638 return -EINVAL;
4639 if (params->supported_rates)
4640 return -EINVAL;
4641 if (params->ext_capab || params->ht_capa || params->vht_capa)
4642 return -EINVAL;
4643 }
4644
47edb11b
AB		 4645 if (statype != CFG80211_STA_AP_CLIENT &&
4646 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4647 if (params->vlan)
4648 return -EINVAL;
4649 }
4650
4651 switch (statype) {
4652 case CFG80211_STA_AP_MLME_CLIENT:
4653 /* Use this only for authorizing/unauthorizing a station */
4654 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4655 return -EOPNOTSUPP;
4656 break;
4657 case CFG80211_STA_AP_CLIENT:
47edb11b 4658 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4659 /* accept only the listed bits */
4660 if (params->sta_flags_mask &
4661 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4662 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4663 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4664 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4665 BIT(NL80211_STA_FLAG_WME) |
4666 BIT(NL80211_STA_FLAG_MFP)))
4667 return -EINVAL;
4668
4669 /* but authenticated/associated only if driver handles it */
4670 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4671 params->sta_flags_mask &
4672 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4673 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4674 return -EINVAL;
4675 break;
4676 case CFG80211_STA_IBSS:
4677 case CFG80211_STA_AP_STA:
4678 /* reject any changes other than AUTHORIZED */
4679 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4680 return -EINVAL;
4681 break;
4682 case CFG80211_STA_TDLS_PEER_SETUP:
4683 /* reject any changes other than AUTHORIZED or WME */
4684 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4685 BIT(NL80211_STA_FLAG_WME)))
4686 return -EINVAL;
4687 /* force (at least) rates when authorizing */
4688 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4689 !params->supported_rates)
4690 return -EINVAL;
4691 break;
4692 case CFG80211_STA_TDLS_PEER_ACTIVE:
4693 /* reject any changes */
4694 return -EINVAL;
eef941e6 4695 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4696 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4697 return -EINVAL;
4698 break;
eef941e6 4699 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4700 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4701 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4702 return -EINVAL;
4703 break;
4704 }
4705
06f7c88c
BL		 4706 /*
4707 * Older kernel versions ignored this attribute entirely, so don't
4708 * reject attempts to update it but mark it as unused instead so the
4709 * driver won't look at the data.
4710 */
4711 if (statype != CFG80211_STA_AP_CLIENT_UNASSOC &&
4712 statype != CFG80211_STA_TDLS_PEER_SETUP)
4713 params->opmode_notif_used = false;
4714
77ee7c89
JB		 4715 return 0;
4716}
4717EXPORT_SYMBOL(cfg80211_check_station_change);
4718
5727ef1b 4719/*
c258d2de 4720 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4721 */
80b99899
JB		 4722static struct net_device *get_vlan(struct genl_info *info,
4723 struct cfg80211_registered_device *rdev)
5727ef1b 4724{
463d0183 4725 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4726 struct net_device *v;
4727 int ret;
4728
4729 if (!vlanattr)
4730 return NULL;
4731
4732 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4733 if (!v)
4734 return ERR_PTR(-ENODEV);
4735
4736 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4737 ret = -EINVAL;
4738 goto error;
5727ef1b 4739 }
80b99899 4740
77ee7c89
JB		 4741 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4742 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4743 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4744 ret = -EINVAL;
4745 goto error;
4746 }
4747
80b99899
JB		 4748 if (!netif_running(v)) {
4749 ret = -ENETDOWN;
4750 goto error;
4751 }
4752
4753 return v;
4754 error:
4755 dev_put(v);
4756 return ERR_PTR(ret);
5727ef1b
JB		 4757}
4758
94e860f1
JB		 4759static const struct nla_policy
4760nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4761 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4762 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4763};
4764
ff276691
JB		 4765static int nl80211_parse_sta_wme(struct genl_info *info,
4766 struct station_parameters *params)
df881293 4767{
df881293
JM		 4768 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4769 struct nlattr *nla;
4770 int err;
4771
df881293
JM		 4772 /* parse WME attributes if present */
4773 if (!info->attrs[NL80211_ATTR_STA_WME])
4774 return 0;
4775
4776 nla = info->attrs[NL80211_ATTR_STA_WME];
4777 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
fe52145f 4778 nl80211_sta_wme_policy, info->extack);
df881293
JM		 4779 if (err)
4780 return err;
4781
4782 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4783 params->uapsd_queues = nla_get_u8(
4784 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4785 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4786 return -EINVAL;
4787
4788 if (tb[NL80211_STA_WME_MAX_SP])
4789 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4790
4791 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4792 return -EINVAL;
4793
4794 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4795
4796 return 0;
4797}
4798
c01fc9ad
SD		 4799static int nl80211_parse_sta_channel_info(struct genl_info *info,
4800 struct station_parameters *params)
4801{
4802 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4803 params->supported_channels =
4804 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4805 params->supported_channels_len =
4806 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4807 /*
4808 * Need to include at least one (first channel, number of
4809 * channels) tuple for each subband, and must have proper
4810 * tuples for the rest of the data as well.
4811 */
4812 if (params->supported_channels_len < 2)
4813 return -EINVAL;
4814 if (params->supported_channels_len % 2)
4815 return -EINVAL;
4816 }
4817
4818 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4819 params->supported_oper_classes =
4820 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4821 params->supported_oper_classes_len =
4822 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4823 /*
4824 * The value of the Length field of the Supported Operating
4825 * Classes element is between 2 and 253.
4826 */
4827 if (params->supported_oper_classes_len < 2 ||
4828 params->supported_oper_classes_len > 253)
4829 return -EINVAL;
4830 }
4831 return 0;
4832}
4833
ff276691
JB		 4834static int nl80211_set_station_tdls(struct genl_info *info,
4835 struct station_parameters *params)
4836{
c01fc9ad 4837 int err;
ff276691 4838 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4839 if (info->attrs[NL80211_ATTR_PEER_AID])
4840 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4841 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4842 params->ht_capa =
4843 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4844 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4845 params->vht_capa =
4846 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4847
c01fc9ad
SD		 4848 err = nl80211_parse_sta_channel_info(info, params);
4849 if (err)
4850 return err;
4851
ff276691
JB		 4852 return nl80211_parse_sta_wme(info, params);
4853}
4854
5727ef1b
JB		 4855static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4856{
4c476991 4857 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4858 struct net_device *dev = info->user_ptr[1];
5727ef1b 4859 struct station_parameters params;
77ee7c89
JB		 4860 u8 *mac_addr;
4861 int err;
5727ef1b
JB		 4862
4863 memset(&params, 0, sizeof(params));
4864
77ee7c89
JB		 4865 if (!rdev->ops->change_station)
4866 return -EOPNOTSUPP;
4867
e4208427
AB		 4868 /*
4869 * AID and listen_interval properties can be set only for unassociated
4870 * station. Include these parameters here and will check them in
4871 * cfg80211_check_station_change().
4872 */
a9bc31e4
AB		 4873 if (info->attrs[NL80211_ATTR_STA_AID])
4874 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4875
4876 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4877 params.listen_interval =
4878 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4879 else
4880 params.listen_interval = -1;
5727ef1b 4881
17b94247
AB		 4882 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4883 u8 tmp;
4884
4885 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4886 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4887 return -EINVAL;
4888
4889 params.support_p2p_ps = tmp;
4890 } else {
4891 params.support_p2p_ps = -1;
4892 }
4893
5727ef1b
JB		 4894 if (!info->attrs[NL80211_ATTR_MAC])
4895 return -EINVAL;
4896
4897 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4898
4899 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4900 params.supported_rates =
4901 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4902 params.supported_rates_len =
4903 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4904 }
4905
9d62a986
JM		 4906 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4907 params.capability =
4908 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4909 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4910 }
4911
4912 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4913 params.ext_capab =
4914 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4915 params.ext_capab_len =
4916 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4917 }
4918
bdd3ae3d 4919 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4920 return -EINVAL;
4921
f8bacc21 4922 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4923 params.plink_action =
f8bacc21
JB		 4924 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4925 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4926 return -EINVAL;
4927 }
2ec600d6 4928
f8bacc21 4929 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4930 params.plink_state =
f8bacc21
JB		 4931 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4932 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4933 return -EINVAL;
7d27a0ba
MH		 4934 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4935 params.peer_aid = nla_get_u16(
4936 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4937 if (params.peer_aid > IEEE80211_MAX_AID)
4938 return -EINVAL;
4939 }
f8bacc21
JB		 4940 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4941 }
9c3990aa 4942
3b1c5a53
MP		 4943 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4944 enum nl80211_mesh_power_mode pm = nla_get_u32(
4945 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4946
4947 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4948 pm > NL80211_MESH_POWER_MAX)
4949 return -EINVAL;
4950
4951 params.local_pm = pm;
4952 }
4953
06f7c88c
BL		 4954 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4955 params.opmode_notif_used = true;
4956 params.opmode_notif =
4957 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4958 }
4959
77ee7c89
JB		 4960 /* Include parameters for TDLS peer (will check later) */
4961 err = nl80211_set_station_tdls(info, &params);
4962 if (err)
4963 return err;
4964
4965 params.vlan = get_vlan(info, rdev);
4966 if (IS_ERR(params.vlan))
4967 return PTR_ERR(params.vlan);
4968
a97f4424
JB		 4969 switch (dev->ieee80211_ptr->iftype) {
4970 case NL80211_IFTYPE_AP:
4971 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4972 case NL80211_IFTYPE_P2P_GO:
074ac8df 4973 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4974 case NL80211_IFTYPE_STATION:
267335d6 4975 case NL80211_IFTYPE_ADHOC:
a97f4424 4976 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4977 break;
4978 default:
77ee7c89
JB		 4979 err = -EOPNOTSUPP;
4980 goto out_put_vlan;
034d655e
JB		 4981 }
4982
77ee7c89 4983 /* driver will call cfg80211_check_station_change() */
e35e4d28 4984 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4985
77ee7c89 4986 out_put_vlan:
5727ef1b
JB		 4987 if (params.vlan)
4988 dev_put(params.vlan);
3b85875a 4989
5727ef1b
JB		 4990 return err;
4991}
4992
4993static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4994{
4c476991 4995 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4996 int err;
4c476991 4997 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4998 struct station_parameters params;
4999 u8 *mac_addr = NULL;
bda95eb1
JB		 5000 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
5001 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 5002
5003 memset(&params, 0, sizeof(params));
5004
984c311b
JB		 5005 if (!rdev->ops->add_station)
5006 return -EOPNOTSUPP;
5007
5727ef1b
JB		 5008 if (!info->attrs[NL80211_ATTR_MAC])
5009 return -EINVAL;
5010
5727ef1b
JB		 5011 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
5012 return -EINVAL;
5013
5014 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
5015 return -EINVAL;
5016
5e4b6f56
JM		 5017 if (!info->attrs[NL80211_ATTR_STA_AID] &&
5018 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 5019 return -EINVAL;
5020
5727ef1b
JB		 5021 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
5022 params.supported_rates =
5023 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5024 params.supported_rates_len =
5025 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5026 params.listen_interval =
5027 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 5028
17b94247
AB		 5029 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
5030 u8 tmp;
5031
5032 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
5033 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
5034 return -EINVAL;
5035
5036 params.support_p2p_ps = tmp;
5037 } else {
5038 /*
5039 * if not specified, assume it's supported for P2P GO interface,
5040 * and is NOT supported for AP interface
5041 */
5042 params.support_p2p_ps =
5043 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
5044 }
5045
3d124ea2 5046 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 5047 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 5048 else
5049 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 5050 if (!params.aid || params.aid > IEEE80211_MAX_AID)
5051 return -EINVAL;
51b50fbe 5052
9d62a986
JM		 5053 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
5054 params.capability =
5055 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
5056 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
5057 }
5058
5059 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
5060 params.ext_capab =
5061 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5062 params.ext_capab_len =
5063 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5064 }
5065
36aedc90
JM		 5066 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
5067 params.ht_capa =
5068 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 5069
f461be3e
MP		 5070 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
5071 params.vht_capa =
5072 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
5073
60f4a7b1
MK		 5074 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5075 params.opmode_notif_used = true;
5076 params.opmode_notif =
5077 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5078 }
5079
f8bacc21 5080 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 5081 params.plink_action =
f8bacc21
JB		 5082 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
5083 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
5084 return -EINVAL;
5085 }
96b78dff 5086
c01fc9ad
SD		 5087 err = nl80211_parse_sta_channel_info(info, &params);
5088 if (err)
5089 return err;
5090
ff276691
JB		 5091 err = nl80211_parse_sta_wme(info, &params);
5092 if (err)
5093 return err;
bdd90d5e 5094
bdd3ae3d 5095 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 5096 return -EINVAL;
5097
496fcc29
JB		 5098 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
5099 * as userspace might just pass through the capabilities from the IEs
5100 * directly, rather than enforcing this restriction and returning an
5101 * error in this case.
5102 */
5103 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
5104 params.ht_capa = NULL;
5105 params.vht_capa = NULL;
5106 }
5107
77ee7c89
JB		 5108 /* When you run into this, adjust the code below for the new flag */
5109 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
5110
bdd90d5e
JB		 5111 switch (dev->ieee80211_ptr->iftype) {
5112 case NL80211_IFTYPE_AP:
5113 case NL80211_IFTYPE_AP_VLAN:
5114 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 5115 /* ignore WME attributes if iface/sta is not capable */
5116 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
5117 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
5118 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 5119
bdd90d5e 5120 /* TDLS peers cannot be added */
3d124ea2
JM		 5121 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5122 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 5123 return -EINVAL;
bdd90d5e
JB		 5124 /* but don't bother the driver with it */
5125 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 5126
d582cffb
JB		 5127 /* allow authenticated/associated only if driver handles it */
5128 if (!(rdev->wiphy.features &
5129 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 5130 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 5131 return -EINVAL;
5132
bda95eb1
JB		 5133 /* Older userspace, or userspace wanting to be compatible with
5134 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
5135 * and assoc flags in the mask, but assumes the station will be
5136 * added as associated anyway since this was the required driver
5137 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
5138 * introduced.
5139 * In order to not bother drivers with this quirk in the API
5140 * set the flags in both the mask and set for new stations in
5141 * this case.
5142 */
5143 if (!(params.sta_flags_mask & auth_assoc)) {
5144 params.sta_flags_mask |= auth_assoc;
5145 params.sta_flags_set |= auth_assoc;
5146 }
5147
bdd90d5e
JB		 5148 /* must be last in here for error handling */
5149 params.vlan = get_vlan(info, rdev);
5150 if (IS_ERR(params.vlan))
5151 return PTR_ERR(params.vlan);
5152 break;
5153 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 5154 /* ignore uAPSD data */
5155 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5156
d582cffb
JB		 5157 /* associated is disallowed */
5158 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
5159 return -EINVAL;
bdd90d5e 5160 /* TDLS peers cannot be added */
3d124ea2
JM		 5161 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5162 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 5163 return -EINVAL;
5164 break;
5165 case NL80211_IFTYPE_STATION:
93d08f0b 5166 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 5167 /* ignore uAPSD data */
5168 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5169
77ee7c89
JB		 5170 /* these are disallowed */
5171 if (params.sta_flags_mask &
5172 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
5173 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 5174 return -EINVAL;
bdd90d5e
JB		 5175 /* Only TDLS peers can be added */
5176 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
5177 return -EINVAL;
5178 /* Can only add if TDLS ... */
5179 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
5180 return -EOPNOTSUPP;
5181 /* ... with external setup is supported */
5182 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
5183 return -EOPNOTSUPP;
77ee7c89
JB		 5184 /*
5185 * Older wpa_supplicant versions always mark the TDLS peer
5186 * as authorized, but it shouldn't yet be.
5187 */
5188 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 5189 break;
5190 default:
5191 return -EOPNOTSUPP;
c75786c9
EP		 5192 }
5193
bdd90d5e 5194 /* be aware of params.vlan when changing code here */
5727ef1b 5195
e35e4d28 5196 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 5197
5727ef1b
JB		 5198 if (params.vlan)
5199 dev_put(params.vlan);
5727ef1b
JB		 5200 return err;
5201}
5202
5203static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
5204{
4c476991
JB		 5205 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5206 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 5207 struct station_del_parameters params;
5208
5209 memset(&params, 0, sizeof(params));
5727ef1b
JB		 5210
5211 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 5212 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 5213
e80cf853 5214 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 5215 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 5216 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5217 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5218 return -EINVAL;
5727ef1b 5219
4c476991
JB		 5220 if (!rdev->ops->del_station)
5221 return -EOPNOTSUPP;
3b85875a 5222
98856866
JM		 5223 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
5224 params.subtype =
5225 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
5226 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
5227 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
5228 return -EINVAL;
5229 } else {
5230 /* Default to Deauthentication frame */
5231 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
5232 }
5233
5234 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
5235 params.reason_code =
5236 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5237 if (params.reason_code == 0)
5238 return -EINVAL; /* 0 is reserved */
5239 } else {
5240 /* Default to reason code 2 */
5241 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
5242 }
5243
89c771e5 5244 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 5245}
5246
15e47304 5247static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 5248 int flags, struct net_device *dev,
5249 u8 *dst, u8 *next_hop,
5250 struct mpath_info *pinfo)
5251{
5252 void *hdr;
5253 struct nlattr *pinfoattr;
5254
1ef4c850 5255 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 5256 if (!hdr)
5257 return -1;
5258
9360ffd1
DM		 5259 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5260 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
5261 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
5262 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
5263 goto nla_put_failure;
f5ea9120 5264
2ec600d6
LCC		 5265 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
5266 if (!pinfoattr)
5267 goto nla_put_failure;
9360ffd1
DM		 5268 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
5269 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
5270 pinfo->frame_qlen))
5271 goto nla_put_failure;
5272 if (((pinfo->filled & MPATH_INFO_SN) &&
5273 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
5274 ((pinfo->filled & MPATH_INFO_METRIC) &&
5275 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
5276 pinfo->metric)) ||
5277 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
5278 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
5279 pinfo->exptime)) ||
5280 ((pinfo->filled & MPATH_INFO_FLAGS) &&
5281 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
5282 pinfo->flags)) ||
5283 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
5284 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
5285 pinfo->discovery_timeout)) ||
5286 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
5287 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
5288 pinfo->discovery_retries)))
5289 goto nla_put_failure;
2ec600d6
LCC		 5290
5291 nla_nest_end(msg, pinfoattr);
5292
053c095a
JB		 5293 genlmsg_end(msg, hdr);
5294 return 0;
2ec600d6
LCC		 5295
5296 nla_put_failure:
bc3ed28c
TG		 5297 genlmsg_cancel(msg, hdr);
5298 return -EMSGSIZE;
2ec600d6
LCC		 5299}
5300
5301static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 5302 struct netlink_callback *cb)
2ec600d6 5303{
2ec600d6 5304 struct mpath_info pinfo;
1b8ec87a 5305 struct cfg80211_registered_device *rdev;
97990a06 5306 struct wireless_dev *wdev;
2ec600d6
LCC		 5307 u8 dst[ETH_ALEN];
5308 u8 next_hop[ETH_ALEN];
97990a06 5309 int path_idx = cb->args[2];
2ec600d6 5310 int err;
2ec600d6 5311
ea90e0dc 5312 rtnl_lock();
1b8ec87a 5313 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893 5314 if (err)
ea90e0dc 5315 goto out_err;
bba95fef 5316
1b8ec87a 5317 if (!rdev->ops->dump_mpath) {
eec60b03 5318 err = -EOPNOTSUPP;
bba95fef
JB		 5319 goto out_err;
5320 }
5321
97990a06 5322 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 5323 err = -EOPNOTSUPP;
0448b5fc 5324 goto out_err;
eec60b03
JM		 5325 }
5326
bba95fef 5327 while (1) {
1b8ec87a 5328 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 5329 next_hop, &pinfo);
bba95fef 5330 if (err == -ENOENT)
2ec600d6 5331 break;
bba95fef 5332 if (err)
3b85875a 5333 goto out_err;
2ec600d6 5334
15e47304 5335 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 5336 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5337 wdev->netdev, dst, next_hop,
bba95fef
JB		 5338 &pinfo) < 0)
5339 goto out;
2ec600d6 5340
bba95fef 5341 path_idx++;
2ec600d6 5342 }
2ec600d6 5343
bba95fef 5344 out:
97990a06 5345 cb->args[2] = path_idx;
bba95fef 5346 err = skb->len;
bba95fef 5347 out_err:
ea90e0dc 5348 rtnl_unlock();
bba95fef 5349 return err;
2ec600d6
LCC		 5350}
5351
5352static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
5353{
4c476991 5354 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 5355 int err;
4c476991 5356 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5357 struct mpath_info pinfo;
5358 struct sk_buff *msg;
5359 u8 *dst = NULL;
5360 u8 next_hop[ETH_ALEN];
5361
5362 memset(&pinfo, 0, sizeof(pinfo));
5363
5364 if (!info->attrs[NL80211_ATTR_MAC])
5365 return -EINVAL;
5366
5367 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5368
4c476991
JB		 5369 if (!rdev->ops->get_mpath)
5370 return -EOPNOTSUPP;
2ec600d6 5371
4c476991
JB		 5372 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5373 return -EOPNOTSUPP;
eec60b03 5374
e35e4d28 5375 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 5376 if (err)
4c476991 5377 return err;
2ec600d6 5378
fd2120ca 5379 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 5380 if (!msg)
4c476991 5381 return -ENOMEM;
2ec600d6 5382
15e47304 5383 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 5384 dev, dst, next_hop, &pinfo) < 0) {
5385 nlmsg_free(msg);
5386 return -ENOBUFS;
5387 }
3b85875a 5388
4c476991 5389 return genlmsg_reply(msg, info);
2ec600d6
LCC		 5390}
5391
5392static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
5393{
4c476991
JB		 5394 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5395 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5396 u8 *dst = NULL;
5397 u8 *next_hop = NULL;
5398
5399 if (!info->attrs[NL80211_ATTR_MAC])
5400 return -EINVAL;
5401
5402 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5403 return -EINVAL;
5404
5405 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5406 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5407
4c476991
JB		 5408 if (!rdev->ops->change_mpath)
5409 return -EOPNOTSUPP;
35a8efe1 5410
4c476991
JB		 5411 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5412 return -EOPNOTSUPP;
2ec600d6 5413
e35e4d28 5414 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 5415}
4c476991 5416
2ec600d6
LCC		 5417static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
5418{
4c476991
JB		 5419 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5420 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5421 u8 *dst = NULL;
5422 u8 *next_hop = NULL;
5423
5424 if (!info->attrs[NL80211_ATTR_MAC])
5425 return -EINVAL;
5426
5427 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5428 return -EINVAL;
5429
5430 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5431 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5432
4c476991
JB		 5433 if (!rdev->ops->add_mpath)
5434 return -EOPNOTSUPP;
35a8efe1 5435
4c476991
JB		 5436 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5437 return -EOPNOTSUPP;
2ec600d6 5438
e35e4d28 5439 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 5440}
5441
5442static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
5443{
4c476991
JB		 5444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5445 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5446 u8 *dst = NULL;
5447
5448 if (info->attrs[NL80211_ATTR_MAC])
5449 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5450
4c476991
JB		 5451 if (!rdev->ops->del_mpath)
5452 return -EOPNOTSUPP;
3b85875a 5453
e35e4d28 5454 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 5455}
5456
66be7d2b
HR		 5457static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
5458{
5459 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5460 int err;
5461 struct net_device *dev = info->user_ptr[1];
5462 struct mpath_info pinfo;
5463 struct sk_buff *msg;
5464 u8 *dst = NULL;
5465 u8 mpp[ETH_ALEN];
5466
5467 memset(&pinfo, 0, sizeof(pinfo));
5468
5469 if (!info->attrs[NL80211_ATTR_MAC])
5470 return -EINVAL;
5471
5472 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5473
5474 if (!rdev->ops->get_mpp)
5475 return -EOPNOTSUPP;
5476
5477 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5478 return -EOPNOTSUPP;
5479
5480 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5481 if (err)
5482 return err;
5483
5484 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5485 if (!msg)
5486 return -ENOMEM;
5487
5488 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5489 dev, dst, mpp, &pinfo) < 0) {
5490 nlmsg_free(msg);
5491 return -ENOBUFS;
5492 }
5493
5494 return genlmsg_reply(msg, info);
5495}
5496
5497static int nl80211_dump_mpp(struct sk_buff *skb,
5498 struct netlink_callback *cb)
5499{
5500 struct mpath_info pinfo;
5501 struct cfg80211_registered_device *rdev;
5502 struct wireless_dev *wdev;
5503 u8 dst[ETH_ALEN];
5504 u8 mpp[ETH_ALEN];
5505 int path_idx = cb->args[2];
5506 int err;
5507
ea90e0dc 5508 rtnl_lock();
66be7d2b
HR		 5509 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5510 if (err)
ea90e0dc 5511 goto out_err;
66be7d2b
HR		 5512
5513 if (!rdev->ops->dump_mpp) {
5514 err = -EOPNOTSUPP;
5515 goto out_err;
5516 }
5517
5518 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5519 err = -EOPNOTSUPP;
5520 goto out_err;
5521 }
5522
5523 while (1) {
5524 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5525 mpp, &pinfo);
5526 if (err == -ENOENT)
5527 break;
5528 if (err)
5529 goto out_err;
5530
5531 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5532 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5533 wdev->netdev, dst, mpp,
5534 &pinfo) < 0)
5535 goto out;
5536
5537 path_idx++;
5538 }
5539
5540 out:
5541 cb->args[2] = path_idx;
5542 err = skb->len;
5543 out_err:
ea90e0dc 5544 rtnl_unlock();
66be7d2b
HR		 5545 return err;
5546}
5547
9f1ba906
JM		 5548static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5549{
4c476991
JB		 5550 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5551 struct net_device *dev = info->user_ptr[1];
c56589ed 5552 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 5553 struct bss_parameters params;
c56589ed 5554 int err;
9f1ba906
JM		 5555
5556 memset(&params, 0, sizeof(params));
5557 /* default to not changing parameters */
5558 params.use_cts_prot = -1;
5559 params.use_short_preamble = -1;
5560 params.use_short_slot_time = -1;
fd8aaaf3 5561 params.ap_isolate = -1;
50b12f59 5562 params.ht_opmode = -1;
53cabad7
JB		 5563 params.p2p_ctwindow = -1;
5564 params.p2p_opp_ps = -1;
9f1ba906
JM		 5565
5566 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5567 params.use_cts_prot =
5568 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5569 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5570 params.use_short_preamble =
5571 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5572 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5573 params.use_short_slot_time =
5574 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 5575 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5576 params.basic_rates =
5577 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5578 params.basic_rates_len =
5579 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5580 }
fd8aaaf3
FF		 5581 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5582 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 5583 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5584 params.ht_opmode =
5585 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 5586
53cabad7
JB		 5587 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5588 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5589 return -EINVAL;
5590 params.p2p_ctwindow =
5591 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5592 if (params.p2p_ctwindow < 0)
5593 return -EINVAL;
5594 if (params.p2p_ctwindow != 0 &&
5595 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5596 return -EINVAL;
5597 }
5598
5599 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5600 u8 tmp;
5601
5602 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5603 return -EINVAL;
5604 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5605 if (tmp > 1)
5606 return -EINVAL;
5607 params.p2p_opp_ps = tmp;
5608 if (params.p2p_opp_ps &&
5609 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5610 return -EINVAL;
5611 }
5612
4c476991
JB		 5613 if (!rdev->ops->change_bss)
5614 return -EOPNOTSUPP;
9f1ba906 5615
074ac8df 5616 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5617 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5618 return -EOPNOTSUPP;
3b85875a 5619
c56589ed
SW		 5620 wdev_lock(wdev);
5621 err = rdev_change_bss(rdev, dev, &params);
5622 wdev_unlock(wdev);
5623
5624 return err;
9f1ba906
JM		 5625}
5626
b2e1b302
LR		 5627static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5628{
b2e1b302 5629 char *data = NULL;
05050753 5630 bool is_indoor;
57b5ce07 5631 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5632 u32 owner_nlportid;
5633
80778f18
LR		 5634 /*
5635 * You should only get this when cfg80211 hasn't yet initialized
5636 * completely when built-in to the kernel right between the time
5637 * window between nl80211_init() and regulatory_init(), if that is
5638 * even possible.
5639 */
458f4f9e 5640 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5641 return -EINPROGRESS;
80778f18 5642
57b5ce07
LR		 5643 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5644 user_reg_hint_type =
5645 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5646 else
5647 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5648
5649 switch (user_reg_hint_type) {
5650 case NL80211_USER_REG_HINT_USER:
5651 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5652 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5653 return -EINVAL;
5654
5655 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5656 return regulatory_hint_user(data, user_reg_hint_type);
5657 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5658 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5659 owner_nlportid = info->snd_portid;
5660 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5661 } else {
5662 owner_nlportid = 0;
5663 is_indoor = true;
5664 }
5665
5666 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5667 default:
5668 return -EINVAL;
5669 }
b2e1b302
LR		 5670}
5671
24bdd9f4 5672static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5673 struct genl_info *info)
93da9cc1 5674{
4c476991 5675 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5676 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5677 struct wireless_dev *wdev = dev->ieee80211_ptr;
5678 struct mesh_config cur_params;
5679 int err = 0;
93da9cc1 5680 void *hdr;
5681 struct nlattr *pinfoattr;
5682 struct sk_buff *msg;
5683
29cbe68c
JB		 5684 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5685 return -EOPNOTSUPP;
5686
24bdd9f4 5687 if (!rdev->ops->get_mesh_config)
4c476991 5688 return -EOPNOTSUPP;
f3f92586 5689
29cbe68c
JB		 5690 wdev_lock(wdev);
5691 /* If not connected, get default parameters */
5692 if (!wdev->mesh_id_len)
5693 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5694 else
e35e4d28 5695 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5696 wdev_unlock(wdev);
5697
93da9cc1 5698 if (err)
4c476991 5699 return err;
93da9cc1 5700
5701 /* Draw up a netlink message to send back */
fd2120ca 5702 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5703 if (!msg)
5704 return -ENOMEM;
15e47304 5705 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5706 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5707 if (!hdr)
efe1cf0c 5708 goto out;
24bdd9f4 5709 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5710 if (!pinfoattr)
5711 goto nla_put_failure;
9360ffd1
DM		 5712 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5713 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5714 cur_params.dot11MeshRetryTimeout) ||
5715 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5716 cur_params.dot11MeshConfirmTimeout) ||
5717 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5718 cur_params.dot11MeshHoldingTimeout) ||
5719 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5720 cur_params.dot11MeshMaxPeerLinks) ||
5721 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5722 cur_params.dot11MeshMaxRetries) ||
5723 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5724 cur_params.dot11MeshTTL) ||
5725 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5726 cur_params.element_ttl) ||
5727 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5728 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5729 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5730 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5731 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5732 cur_params.dot11MeshHWMPmaxPREQretries) ||
5733 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5734 cur_params.path_refresh_time) ||
5735 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5736 cur_params.min_discovery_timeout) ||
5737 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5738 cur_params.dot11MeshHWMPactivePathTimeout) ||
5739 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5740 cur_params.dot11MeshHWMPpreqMinInterval) ||
5741 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5742 cur_params.dot11MeshHWMPperrMinInterval) ||
5743 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5744 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5745 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5746 cur_params.dot11MeshHWMPRootMode) ||
5747 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5748 cur_params.dot11MeshHWMPRannInterval) ||
5749 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5750 cur_params.dot11MeshGateAnnouncementProtocol) ||
5751 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5752 cur_params.dot11MeshForwarding) ||
335d5349 5753 nla_put_s32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5754 cur_params.rssi_threshold) ||
5755 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5756 cur_params.ht_opmode) ||
5757 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5758 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5759 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5760 cur_params.dot11MeshHWMProotInterval) ||
5761 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5762 cur_params.dot11MeshHWMPconfirmationInterval) ||
5763 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5764 cur_params.power_mode) ||
5765 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5766 cur_params.dot11MeshAwakeWindowDuration) ||
5767 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5768 cur_params.plink_timeout))
9360ffd1 5769 goto nla_put_failure;
93da9cc1 5770 nla_nest_end(msg, pinfoattr);
5771 genlmsg_end(msg, hdr);
4c476991 5772 return genlmsg_reply(msg, info);
93da9cc1 5773
3b85875a 5774 nla_put_failure:
93da9cc1 5775 genlmsg_cancel(msg, hdr);
efe1cf0c 5776 out:
d080e275 5777 nlmsg_free(msg);
4c476991 5778 return -ENOBUFS;
93da9cc1 5779}
5780
b54452b0 5781static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5782 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5783 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5784 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5785 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5786 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5787 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5788 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5789 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5790 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5791 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5792 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5793 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5794 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5795 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5796 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5797 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5798 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5799 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5800 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5801 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5802 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5803 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5804 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5805 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5806 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5807 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5808 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5809 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5810};
5811
c80d545d
JC		 5812static const struct nla_policy
5813 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5814 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5815 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5816 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5817 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5818 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5819 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5820 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5821 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5822 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5823};
5824
f151d9db
AB		 5825static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5826{
5827 u8 val = nla_get_u8(nla);
5828 if (val < min || val > max)
5829 return -EINVAL;
5830 *out = val;
5831 return 0;
5832}
5833
5834static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5835{
5836 u8 val = nla_get_u8(nla);
5837 if (val < min || val > max)
5838 return -EINVAL;
5839 *out = val;
5840 return 0;
5841}
5842
5843static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5844{
5845 u16 val = nla_get_u16(nla);
5846 if (val < min || val > max)
5847 return -EINVAL;
5848 *out = val;
5849 return 0;
5850}
5851
5852static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5853{
5854 u32 val = nla_get_u32(nla);
5855 if (val < min || val > max)
5856 return -EINVAL;
5857 *out = val;
5858 return 0;
5859}
5860
5861static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5862{
5863 s32 val = nla_get_s32(nla);
5864 if (val < min || val > max)
5865 return -EINVAL;
5866 *out = val;
5867 return 0;
5868}
5869
ff9a71af
JB		 5870static int nl80211_check_power_mode(const struct nlattr *nla,
5871 enum nl80211_mesh_power_mode min,
5872 enum nl80211_mesh_power_mode max,
5873 enum nl80211_mesh_power_mode *out)
5874{
5875 u32 val = nla_get_u32(nla);
5876 if (val < min || val > max)
5877 return -EINVAL;
5878 *out = val;
5879 return 0;
5880}
5881
24bdd9f4 5882static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5883 struct mesh_config *cfg,
5884 u32 *mask_out)
93da9cc1 5885{
93da9cc1 5886 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5887 u32 mask = 0;
9757235f 5888 u16 ht_opmode;
93da9cc1 5889
ea54fba2
MP		 5890#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5891do { \
5892 if (tb[attr]) { \
f151d9db 5893 if (fn(tb[attr], min, max, &cfg->param)) \
ea54fba2 5894 return -EINVAL; \
ea54fba2
MP		 5895 mask |= (1 << (attr - 1)); \
5896 } \
5897} while (0)
bd90fdcc 5898
24bdd9f4 5899 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5900 return -EINVAL;
5901 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5902 info->attrs[NL80211_ATTR_MESH_CONFIG],
fe52145f 5903 nl80211_meshconf_params_policy, info->extack))
93da9cc1 5904 return -EINVAL;
5905
93da9cc1 5906 /* This makes sure that there aren't more than 32 mesh config
5907 * parameters (otherwise our bitfield scheme would not work.) */
5908 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5909
5910 /* Fill in the params struct */
ea54fba2 5911 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea 5912 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
f151d9db 5913 nl80211_check_u16);
ea54fba2 5914 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea 5915 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
f151d9db 5916 nl80211_check_u16);
ea54fba2 5917 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea 5918 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
f151d9db 5919 nl80211_check_u16);
ea54fba2 5920 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea 5921 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
f151d9db 5922 nl80211_check_u16);
ea54fba2 5923 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea 5924 mask, NL80211_MESHCONF_MAX_RETRIES,
f151d9db 5925 nl80211_check_u8);
ea54fba2 5926 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
f151d9db 5927 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
ea54fba2 5928 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea 5929 mask, NL80211_MESHCONF_ELEMENT_TTL,
f151d9db 5930 nl80211_check_u8);
ea54fba2 5931 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea 5932 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
f151d9db 5933 nl80211_check_bool);
ea54fba2
MP		 5934 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5935 1, 255, mask,
a4f606ea 5936 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
f151d9db 5937 nl80211_check_u32);
ea54fba2 5938 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea 5939 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
f151d9db 5940 nl80211_check_u8);
ea54fba2 5941 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea 5942 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
f151d9db 5943 nl80211_check_u32);
ea54fba2 5944 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea 5945 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
f151d9db 5946 nl80211_check_u16);
ea54fba2
MP		 5947 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5948 1, 65535, mask,
a4f606ea 5949 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
f151d9db 5950 nl80211_check_u32);
93da9cc1 5951 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5952 1, 65535, mask,
5953 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
f151d9db 5954 nl80211_check_u16);
dca7e943 5955 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5956 1, 65535, mask,
5957 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
f151d9db 5958 nl80211_check_u16);
93da9cc1 5959 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5960 dot11MeshHWMPnetDiameterTraversalTime,
5961 1, 65535, mask,
a4f606ea 5962 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
f151d9db 5963 nl80211_check_u16);
ea54fba2
MP		 5964 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5965 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
f151d9db 5966 nl80211_check_u8);
ea54fba2
MP		 5967 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5968 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
f151d9db 5969 nl80211_check_u16);
63c5723b 5970 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5971 dot11MeshGateAnnouncementProtocol, 0, 1,
5972 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
f151d9db 5973 nl80211_check_bool);
ea54fba2 5974 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea 5975 mask, NL80211_MESHCONF_FORWARDING,
f151d9db 5976 nl80211_check_bool);
83374fe9 5977 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5978 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
f151d9db 5979 nl80211_check_s32);
9757235f
MH		 5980 /*
5981 * Check HT operation mode based on
5982 * IEEE 802.11 2012 8.4.2.59 HT Operation element.
5983 */
5984 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
5985 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
5986
5987 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
5988 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
5989 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5990 return -EINVAL;
5991
5992 if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
5993 (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5994 return -EINVAL;
5995
5996 switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
5997 case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
5998 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
5999 if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
6000 return -EINVAL;
6001 break;
6002 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
6003 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
6004 if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
6005 return -EINVAL;
6006 break;
6007 }
6008 cfg->ht_opmode = ht_opmode;
fd551bac 6009 mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
9757235f 6010 }
ac1073a6 6011 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 6012 1, 65535, mask,
ac1073a6 6013 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
f151d9db 6014 nl80211_check_u32);
ea54fba2 6015 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 6016 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
f151d9db 6017 nl80211_check_u16);
728b19e5 6018 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 6019 dot11MeshHWMPconfirmationInterval,
6020 1, 65535, mask,
728b19e5 6021 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
f151d9db 6022 nl80211_check_u16);
3b1c5a53
MP		 6023 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
6024 NL80211_MESH_POWER_ACTIVE,
6025 NL80211_MESH_POWER_MAX,
6026 mask, NL80211_MESHCONF_POWER_MODE,
ff9a71af 6027 nl80211_check_power_mode);
3b1c5a53
MP		 6028 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
6029 0, 65535, mask,
f151d9db 6030 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
31f909a2 6031 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538 6032 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
f151d9db 6033 nl80211_check_u32);
bd90fdcc
JB		 6034 if (mask_out)
6035 *mask_out = mask;
c80d545d 6036
bd90fdcc
JB		 6037 return 0;
6038
6039#undef FILL_IN_MESH_PARAM_IF_SET
6040}
6041
c80d545d
JC		 6042static int nl80211_parse_mesh_setup(struct genl_info *info,
6043 struct mesh_setup *setup)
6044{
bb2798d4 6045 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 6046 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
6047
6048 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
6049 return -EINVAL;
6050 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
6051 info->attrs[NL80211_ATTR_MESH_SETUP],
fe52145f 6052 nl80211_mesh_setup_params_policy, info->extack))
c80d545d
JC		 6053 return -EINVAL;
6054
d299a1f2
JC		 6055 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
6056 setup->sync_method =
6057 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
6058 IEEE80211_SYNC_METHOD_VENDOR :
6059 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
6060
c80d545d
JC		 6061 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
6062 setup->path_sel_proto =
6063 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
6064 IEEE80211_PATH_PROTOCOL_VENDOR :
6065 IEEE80211_PATH_PROTOCOL_HWMP;
6066
6067 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
6068 setup->path_metric =
6069 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
6070 IEEE80211_PATH_METRIC_VENDOR :
6071 IEEE80211_PATH_METRIC_AIRTIME;
6072
581a8b0f 6073 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 6074 struct nlattr *ieattr =
581a8b0f 6075 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 6076 if (!is_valid_ie_attr(ieattr))
6077 return -EINVAL;
581a8b0f
JC		 6078 setup->ie = nla_data(ieattr);
6079 setup->ie_len = nla_len(ieattr);
c80d545d 6080 }
bb2798d4
TP		 6081 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
6082 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
6083 return -EINVAL;
6084 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 6085 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
6086 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 6087 if (setup->is_secure)
6088 setup->user_mpm = true;
c80d545d 6089
6e16d90b
CT		 6090 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
6091 if (!setup->user_mpm)
6092 return -EINVAL;
6093 setup->auth_id =
6094 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
6095 }
6096
c80d545d
JC		 6097 return 0;
6098}
6099
24bdd9f4 6100static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 6101 struct genl_info *info)
bd90fdcc
JB		 6102{
6103 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6104 struct net_device *dev = info->user_ptr[1];
29cbe68c 6105 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 6106 struct mesh_config cfg;
6107 u32 mask;
6108 int err;
6109
29cbe68c
JB		 6110 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
6111 return -EOPNOTSUPP;
6112
24bdd9f4 6113 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 6114 return -EOPNOTSUPP;
6115
24bdd9f4 6116 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 6117 if (err)
6118 return err;
6119
29cbe68c
JB		 6120 wdev_lock(wdev);
6121 if (!wdev->mesh_id_len)
6122 err = -ENOLINK;
6123
6124 if (!err)
e35e4d28 6125 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 6126
6127 wdev_unlock(wdev);
6128
6129 return err;
93da9cc1 6130}
6131
ad30ca2c
AN		 6132static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
6133 struct sk_buff *msg)
f130347c 6134{
f130347c
LR		 6135 struct nlattr *nl_reg_rules;
6136 unsigned int i;
f130347c 6137
458f4f9e
JB		 6138 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
6139 (regdom->dfs_region &&
6140 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 6141 goto nla_put_failure;
458f4f9e 6142
f130347c
LR		 6143 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
6144 if (!nl_reg_rules)
ad30ca2c 6145 goto nla_put_failure;
f130347c 6146
458f4f9e 6147 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 6148 struct nlattr *nl_reg_rule;
6149 const struct ieee80211_reg_rule *reg_rule;
6150 const struct ieee80211_freq_range *freq_range;
6151 const struct ieee80211_power_rule *power_rule;
97524820 6152 unsigned int max_bandwidth_khz;
f130347c 6153
458f4f9e 6154 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 6155 freq_range = &reg_rule->freq_range;
6156 power_rule = &reg_rule->power_rule;
6157
6158 nl_reg_rule = nla_nest_start(msg, i);
6159 if (!nl_reg_rule)
ad30ca2c 6160 goto nla_put_failure;
f130347c 6161
97524820
JD		 6162 max_bandwidth_khz = freq_range->max_bandwidth_khz;
6163 if (!max_bandwidth_khz)
6164 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
6165 reg_rule);
6166
9360ffd1
DM		 6167 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
6168 reg_rule->flags) ||
6169 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
6170 freq_range->start_freq_khz) ||
6171 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
6172 freq_range->end_freq_khz) ||
6173 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 6174 max_bandwidth_khz) ||
9360ffd1
DM		 6175 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
6176 power_rule->max_antenna_gain) ||
6177 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 6178 power_rule->max_eirp) ||
6179 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
6180 reg_rule->dfs_cac_ms))
ad30ca2c 6181 goto nla_put_failure;
f130347c
LR		 6182
6183 nla_nest_end(msg, nl_reg_rule);
6184 }
6185
6186 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 6187 return 0;
6188
6189nla_put_failure:
6190 return -EMSGSIZE;
6191}
6192
6193static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
6194{
6195 const struct ieee80211_regdomain *regdom = NULL;
6196 struct cfg80211_registered_device *rdev;
6197 struct wiphy *wiphy = NULL;
6198 struct sk_buff *msg;
6199 void *hdr;
6200
6201 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6202 if (!msg)
6203 return -ENOBUFS;
6204
6205 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6206 NL80211_CMD_GET_REG);
6207 if (!hdr)
6208 goto put_failure;
6209
6210 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 6211 bool self_managed;
6212
ad30ca2c
AN		 6213 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6214 if (IS_ERR(rdev)) {
6215 nlmsg_free(msg);
6216 return PTR_ERR(rdev);
6217 }
6218
6219 wiphy = &rdev->wiphy;
1bdd716c
AN		 6220 self_managed = wiphy->regulatory_flags &
6221 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 6222 regdom = get_wiphy_regdom(wiphy);
6223
1bdd716c
AN		 6224 /* a self-managed-reg device must have a private regdom */
6225 if (WARN_ON(!regdom && self_managed)) {
6226 nlmsg_free(msg);
6227 return -EINVAL;
6228 }
6229
ad30ca2c
AN		 6230 if (regdom &&
6231 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6232 goto nla_put_failure;
6233 }
6234
6235 if (!wiphy && reg_last_request_cell_base() &&
6236 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6237 NL80211_USER_REG_HINT_CELL_BASE))
6238 goto nla_put_failure;
6239
6240 rcu_read_lock();
6241
6242 if (!regdom)
6243 regdom = rcu_dereference(cfg80211_regdomain);
6244
6245 if (nl80211_put_regdom(regdom, msg))
6246 goto nla_put_failure_rcu;
6247
6248 rcu_read_unlock();
f130347c
LR		 6249
6250 genlmsg_end(msg, hdr);
5fe231e8 6251 return genlmsg_reply(msg, info);
f130347c 6252
458f4f9e
JB		 6253nla_put_failure_rcu:
6254 rcu_read_unlock();
f130347c
LR		 6255nla_put_failure:
6256 genlmsg_cancel(msg, hdr);
efe1cf0c 6257put_failure:
d080e275 6258 nlmsg_free(msg);
5fe231e8 6259 return -EMSGSIZE;
f130347c
LR		 6260}
6261
ad30ca2c
AN		 6262static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
6263 u32 seq, int flags, struct wiphy *wiphy,
6264 const struct ieee80211_regdomain *regdom)
6265{
6266 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6267 NL80211_CMD_GET_REG);
6268
6269 if (!hdr)
6270 return -1;
6271
6272 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6273
6274 if (nl80211_put_regdom(regdom, msg))
6275 goto nla_put_failure;
6276
6277 if (!wiphy && reg_last_request_cell_base() &&
6278 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6279 NL80211_USER_REG_HINT_CELL_BASE))
6280 goto nla_put_failure;
6281
6282 if (wiphy &&
6283 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6284 goto nla_put_failure;
6285
1bdd716c
AN		 6286 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
6287 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
6288 goto nla_put_failure;
6289
053c095a
JB		 6290 genlmsg_end(msg, hdr);
6291 return 0;
ad30ca2c
AN		 6292
6293nla_put_failure:
6294 genlmsg_cancel(msg, hdr);
6295 return -EMSGSIZE;
6296}
6297
6298static int nl80211_get_reg_dump(struct sk_buff *skb,
6299 struct netlink_callback *cb)
6300{
6301 const struct ieee80211_regdomain *regdom = NULL;
6302 struct cfg80211_registered_device *rdev;
6303 int err, reg_idx, start = cb->args[2];
6304
6305 rtnl_lock();
6306
6307 if (cfg80211_regdomain && start == 0) {
6308 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6309 NLM_F_MULTI, NULL,
6310 rtnl_dereference(cfg80211_regdomain));
6311 if (err < 0)
6312 goto out_err;
6313 }
6314
6315 /* the global regdom is idx 0 */
6316 reg_idx = 1;
6317 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
6318 regdom = get_wiphy_regdom(&rdev->wiphy);
6319 if (!regdom)
6320 continue;
6321
6322 if (++reg_idx <= start)
6323 continue;
6324
6325 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6326 NLM_F_MULTI, &rdev->wiphy, regdom);
6327 if (err < 0) {
6328 reg_idx--;
6329 break;
6330 }
6331 }
6332
6333 cb->args[2] = reg_idx;
6334 err = skb->len;
6335out_err:
6336 rtnl_unlock();
6337 return err;
6338}
6339
b6863036
JB		 6340#ifdef CONFIG_CFG80211_CRDA_SUPPORT
6341static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
6342 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6343 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6344 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6345 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6346 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6347 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6348 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
6349};
6350
6351static int parse_reg_rule(struct nlattr *tb[],
6352 struct ieee80211_reg_rule *reg_rule)
6353{
6354 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
6355 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
6356
6357 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
6358 return -EINVAL;
6359 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
6360 return -EINVAL;
6361 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
6362 return -EINVAL;
6363 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6364 return -EINVAL;
6365 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6366 return -EINVAL;
6367
6368 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
6369
6370 freq_range->start_freq_khz =
6371 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
6372 freq_range->end_freq_khz =
6373 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
6374 freq_range->max_bandwidth_khz =
6375 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
6376
6377 power_rule->max_eirp =
6378 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
6379
6380 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
6381 power_rule->max_antenna_gain =
6382 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
6383
6384 if (tb[NL80211_ATTR_DFS_CAC_TIME])
6385 reg_rule->dfs_cac_ms =
6386 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
6387
6388 return 0;
6389}
6390
b2e1b302
LR		 6391static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
6392{
6393 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
6394 struct nlattr *nl_reg_rule;
ea372c54
JB		 6395 char *alpha2;
6396 int rem_reg_rules, r;
b2e1b302 6397 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 6398 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 6399 struct ieee80211_regdomain *rd;
b2e1b302
LR		 6400
6401 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6402 return -EINVAL;
6403
6404 if (!info->attrs[NL80211_ATTR_REG_RULES])
6405 return -EINVAL;
6406
6407 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6408
8b60b078
LR		 6409 if (info->attrs[NL80211_ATTR_DFS_REGION])
6410 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
6411
b2e1b302 6412 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6413 rem_reg_rules) {
b2e1b302
LR		 6414 num_rules++;
6415 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 6416 return -EINVAL;
b2e1b302
LR		 6417 }
6418
e438768f
LR		 6419 if (!reg_is_valid_request(alpha2))
6420 return -EINVAL;
6421
b2e1b302 6422 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 6423 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 6424
6425 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 6426 if (!rd)
6427 return -ENOMEM;
b2e1b302
LR		 6428
6429 rd->n_reg_rules = num_rules;
6430 rd->alpha2[0] = alpha2[0];
6431 rd->alpha2[1] = alpha2[1];
6432
8b60b078
LR		 6433 /*
6434 * Disable DFS master mode if the DFS region was
6435 * not supported or known on this kernel.
6436 */
6437 if (reg_supported_dfs_region(dfs_region))
6438 rd->dfs_region = dfs_region;
6439
b2e1b302 6440 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6441 rem_reg_rules) {
bfe2c7b1 6442 r = nla_parse_nested(tb, NL80211_REG_RULE_ATTR_MAX,
fe52145f
JB		 6443 nl_reg_rule, reg_rule_policy,
6444 info->extack);
ae811e21
JB		 6445 if (r)
6446 goto bad_reg;
b2e1b302
LR		 6447 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
6448 if (r)
6449 goto bad_reg;
6450
6451 rule_idx++;
6452
d0e18f83
LR		 6453 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
6454 r = -EINVAL;
b2e1b302 6455 goto bad_reg;
d0e18f83 6456 }
b2e1b302
LR		 6457 }
6458
06627990
JB		 6459 /* set_regdom takes ownership of rd */
6460 return set_regdom(rd, REGD_SOURCE_CRDA);
d2372b31 6461 bad_reg:
b2e1b302 6462 kfree(rd);
d0e18f83 6463 return r;
b2e1b302 6464}
b6863036 6465#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 6466
83f5e2cf
JB		 6467static int validate_scan_freqs(struct nlattr *freqs)
6468{
6469 struct nlattr *attr1, *attr2;
6470 int n_channels = 0, tmp1, tmp2;
6471
d7f13f74
SD		 6472 nla_for_each_nested(attr1, freqs, tmp1)
6473 if (nla_len(attr1) != sizeof(u32))
6474 return 0;
6475
83f5e2cf
JB		 6476 nla_for_each_nested(attr1, freqs, tmp1) {
6477 n_channels++;
6478 /*
6479 * Some hardware has a limited channel list for
6480 * scanning, and it is pretty much nonsensical
6481 * to scan for a channel twice, so disallow that
6482 * and don't require drivers to check that the
6483 * channel list they get isn't longer than what
6484 * they can scan, as long as they can scan all
6485 * the channels they registered at once.
6486 */
6487 nla_for_each_nested(attr2, freqs, tmp2)
6488 if (attr1 != attr2 &&
6489 nla_get_u32(attr1) == nla_get_u32(attr2))
6490 return 0;
6491 }
6492
6493 return n_channels;
6494}
6495
57fbcce3 6496static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
38de03d2 6497{
57fbcce3 6498 return b < NUM_NL80211_BANDS && wiphy->bands[b];
38de03d2
AS		 6499}
6500
6501static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6502 struct cfg80211_bss_selection *bss_select)
6503{
6504 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6505 struct nlattr *nest;
6506 int err;
6507 bool found = false;
6508 int i;
6509
6510 /* only process one nested attribute */
6511 nest = nla_data(nla);
6512 if (!nla_ok(nest, nla_len(nest)))
6513 return -EINVAL;
6514
bfe2c7b1 6515 err = nla_parse_nested(attr, NL80211_BSS_SELECT_ATTR_MAX, nest,
fceb6435 6516 nl80211_bss_select_policy, NULL);
38de03d2
AS		 6517 if (err)
6518 return err;
6519
6520 /* only one attribute may be given */
6521 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6522 if (attr[i]) {
6523 if (found)
6524 return -EINVAL;
6525 found = true;
6526 }
6527 }
6528
6529 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6530
6531 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6532 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6533
6534 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6535 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6536 bss_select->param.band_pref =
6537 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6538 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6539 return -EINVAL;
6540 }
6541
6542 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6543 struct nl80211_bss_select_rssi_adjust *adj_param;
6544
6545 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6546 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6547 bss_select->param.adjust.band = adj_param->band;
6548 bss_select->param.adjust.delta = adj_param->delta;
6549 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6550 return -EINVAL;
6551 }
6552
6553 /* user-space did not provide behaviour attribute */
6554 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6555 return -EINVAL;
6556
6557 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6558 return -EINVAL;
6559
6560 return 0;
6561}
6562
ad2b26ab
JB		 6563static int nl80211_parse_random_mac(struct nlattr **attrs,
6564 u8 *mac_addr, u8 *mac_addr_mask)
6565{
6566 int i;
6567
6568 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 6569 eth_zero_addr(mac_addr);
6570 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 6571 mac_addr[0] = 0x2;
6572 mac_addr_mask[0] = 0x3;
6573
6574 return 0;
6575 }
6576
6577 /* need both or none */
6578 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6579 return -EINVAL;
6580
6581 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6582 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6583
6584 /* don't allow or configure an mcast address */
6585 if (!is_multicast_ether_addr(mac_addr_mask) ||
6586 is_multicast_ether_addr(mac_addr))
6587 return -EINVAL;
6588
6589 /*
6590 * allow users to pass a MAC address that has bits set outside
6591 * of the mask, but don't bother drivers with having to deal
6592 * with such bits
6593 */
6594 for (i = 0; i < ETH_ALEN; i++)
6595 mac_addr[i] &= mac_addr_mask[i];
6596
6597 return 0;
6598}
6599
34373d12
VT		 6600static bool cfg80211_off_channel_oper_allowed(struct wireless_dev *wdev)
6601{
6602 ASSERT_WDEV_LOCK(wdev);
6603
6604 if (!cfg80211_beaconing_iface_active(wdev))
6605 return true;
6606
6607 if (!(wdev->chandef.chan->flags & IEEE80211_CHAN_RADAR))
6608 return true;
6609
6610 return regulatory_pre_cac_allowed(wdev->wiphy);
6611}
6612
2a519311
JB		 6613static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6614{
4c476991 6615 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 6616 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 6617 struct cfg80211_scan_request *request;
2a519311
JB		 6618 struct nlattr *attr;
6619 struct wiphy *wiphy;
83f5e2cf 6620 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 6621 size_t ie_len;
2a519311 6622
f4a11bb0
JB		 6623 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6624 return -EINVAL;
6625
79c97e97 6626 wiphy = &rdev->wiphy;
2a519311 6627
cb3b7d87
AB		 6628 if (wdev->iftype == NL80211_IFTYPE_NAN)
6629 return -EOPNOTSUPP;
6630
4c476991
JB		 6631 if (!rdev->ops->scan)
6632 return -EOPNOTSUPP;
2a519311 6633
f9d15d16 6634 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 6635 err = -EBUSY;
6636 goto unlock;
6637 }
2a519311
JB		 6638
6639 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 6640 n_channels = validate_scan_freqs(
6641 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 6642 if (!n_channels) {
6643 err = -EINVAL;
6644 goto unlock;
6645 }
2a519311 6646 } else {
bdfbec2d 6647 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 6648 }
6649
6650 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6651 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6652 n_ssids++;
6653
f9f47529
JB		 6654 if (n_ssids > wiphy->max_scan_ssids) {
6655 err = -EINVAL;
6656 goto unlock;
6657 }
2a519311 6658
70692ad2
JM		 6659 if (info->attrs[NL80211_ATTR_IE])
6660 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6661 else
6662 ie_len = 0;
6663
f9f47529
JB		 6664 if (ie_len > wiphy->max_scan_ie_len) {
6665 err = -EINVAL;
6666 goto unlock;
6667 }
18a83659 6668
2a519311 6669 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 6670 + sizeof(*request->ssids) * n_ssids
6671 + sizeof(*request->channels) * n_channels
70692ad2 6672 + ie_len, GFP_KERNEL);
f9f47529
JB		 6673 if (!request) {
6674 err = -ENOMEM;
6675 goto unlock;
6676 }
2a519311 6677
2a519311 6678 if (n_ssids)
5ba63533 6679 request->ssids = (void *)&request->channels[n_channels];
2a519311 6680 request->n_ssids = n_ssids;
70692ad2 6681 if (ie_len) {
13874e4b 6682 if (n_ssids)
70692ad2
JM		 6683 request->ie = (void *)(request->ssids + n_ssids);
6684 else
6685 request->ie = (void *)(request->channels + n_channels);
6686 }
2a519311 6687
584991dc 6688 i = 0;
2a519311
JB		 6689 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6690 /* user specified, bail out if channel not found */
2a519311 6691 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6692 struct ieee80211_channel *chan;
6693
6694 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6695
6696 if (!chan) {
2a519311
JB		 6697 err = -EINVAL;
6698 goto out_free;
6699 }
584991dc
JB		 6700
6701 /* ignore disabled channels */
6702 if (chan->flags & IEEE80211_CHAN_DISABLED)
6703 continue;
6704
6705 request->channels[i] = chan;
2a519311
JB		 6706 i++;
6707 }
6708 } else {
57fbcce3 6709 enum nl80211_band band;
34850ab2 6710
2a519311 6711 /* all channels */
57fbcce3 6712 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2a519311 6713 int j;
7a087e74 6714
2a519311
JB		 6715 if (!wiphy->bands[band])
6716 continue;
6717 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6718 struct ieee80211_channel *chan;
6719
6720 chan = &wiphy->bands[band]->channels[j];
6721
6722 if (chan->flags & IEEE80211_CHAN_DISABLED)
6723 continue;
6724
6725 request->channels[i] = chan;
2a519311
JB		 6726 i++;
6727 }
6728 }
6729 }
6730
584991dc
JB		 6731 if (!i) {
6732 err = -EINVAL;
6733 goto out_free;
6734 }
6735
6736 request->n_channels = i;
6737
34373d12
VT		 6738 wdev_lock(wdev);
6739 if (!cfg80211_off_channel_oper_allowed(wdev)) {
6740 struct ieee80211_channel *chan;
6741
6742 if (request->n_channels != 1) {
6743 wdev_unlock(wdev);
6744 err = -EBUSY;
6745 goto out_free;
6746 }
6747
6748 chan = request->channels[0];
6749 if (chan->center_freq != wdev->chandef.chan->center_freq) {
6750 wdev_unlock(wdev);
6751 err = -EBUSY;
6752 goto out_free;
6753 }
6754 }
6755 wdev_unlock(wdev);
6756
2a519311 6757 i = 0;
13874e4b 6758 if (n_ssids) {
2a519311 6759 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6760 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6761 err = -EINVAL;
6762 goto out_free;
6763 }
57a27e1d 6764 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6765 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6766 i++;
6767 }
6768 }
6769
70692ad2
JM		 6770 if (info->attrs[NL80211_ATTR_IE]) {
6771 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6772 memcpy((void *)request->ie,
6773 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6774 request->ie_len);
6775 }
6776
57fbcce3 6777 for (i = 0; i < NUM_NL80211_BANDS; i++)
a401d2bb
JB		 6778 if (wiphy->bands[i])
6779 request->rates[i] =
6780 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6781
6782 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6783 nla_for_each_nested(attr,
6784 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6785 tmp) {
57fbcce3 6786 enum nl80211_band band = nla_type(attr);
34850ab2 6787
57fbcce3 6788 if (band < 0 || band >= NUM_NL80211_BANDS) {
34850ab2
JB		 6789 err = -EINVAL;
6790 goto out_free;
6791 }
1b09cd82
FF		 6792
6793 if (!wiphy->bands[band])
6794 continue;
6795
34850ab2
JB		 6796 err = ieee80211_get_ratemask(wiphy->bands[band],
6797 nla_data(attr),
6798 nla_len(attr),
6799 &request->rates[band]);
6800 if (err)
6801 goto out_free;
6802 }
6803 }
6804
1d76250b
AS		 6805 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6806 if (!wiphy_ext_feature_isset(wiphy,
6807 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6808 err = -EOPNOTSUPP;
6809 goto out_free;
6810 }
6811
6812 request->duration =
6813 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6814 request->duration_mandatory =
6815 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6816 }
6817
46856bbf 6818 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 6819 request->flags = nla_get_u32(
6820 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6821 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6822 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6823 err = -EOPNOTSUPP;
6824 goto out_free;
6825 }
ad2b26ab
JB		 6826
6827 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6828 if (!(wiphy->features &
6829 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6830 err = -EOPNOTSUPP;
6831 goto out_free;
6832 }
6833
6834 if (wdev->current_bss) {
6835 err = -EOPNOTSUPP;
6836 goto out_free;
6837 }
6838
6839 err = nl80211_parse_random_mac(info->attrs,
6840 request->mac_addr,
6841 request->mac_addr_mask);
6842 if (err)
6843 goto out_free;
6844 }
46856bbf 6845 }
ed473771 6846
e9f935e3
RM		 6847 request->no_cck =
6848 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6849
2fa436b3
VK		 6850 /* Initial implementation used NL80211_ATTR_MAC to set the specific
6851 * BSSID to scan for. This was problematic because that same attribute
6852 * was already used for another purpose (local random MAC address). The
6853 * NL80211_ATTR_BSSID attribute was added to fix this. For backwards
6854 * compatibility with older userspace components, also use the
6855 * NL80211_ATTR_MAC value here if it can be determined to be used for
6856 * the specific BSSID use case instead of the random MAC address
6857 * (NL80211_ATTR_SCAN_FLAGS is used to enable random MAC address use).
6858 */
6859 if (info->attrs[NL80211_ATTR_BSSID])
6860 memcpy(request->bssid,
6861 nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN);
6862 else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) &&
6863 info->attrs[NL80211_ATTR_MAC])
818965d3
JM		 6864 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6865 ETH_ALEN);
6866 else
6867 eth_broadcast_addr(request->bssid);
6868
fd014284 6869 request->wdev = wdev;
79c97e97 6870 request->wiphy = &rdev->wiphy;
15d6030b 6871 request->scan_start = jiffies;
2a519311 6872
79c97e97 6873 rdev->scan_req = request;
e35e4d28 6874 err = rdev_scan(rdev, request);
2a519311 6875
463d0183 6876 if (!err) {
fd014284
JB		 6877 nl80211_send_scan_start(rdev, wdev);
6878 if (wdev->netdev)
6879 dev_hold(wdev->netdev);
4c476991 6880 } else {
2a519311 6881 out_free:
79c97e97 6882 rdev->scan_req = NULL;
2a519311
JB		 6883 kfree(request);
6884 }
3b85875a 6885
f9f47529 6886 unlock:
2a519311
JB		 6887 return err;
6888}
6889
91d3ab46
VK		 6890static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6891{
6892 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6893 struct wireless_dev *wdev = info->user_ptr[1];
6894
6895 if (!rdev->ops->abort_scan)
6896 return -EOPNOTSUPP;
6897
6898 if (rdev->scan_msg)
6899 return 0;
6900
6901 if (!rdev->scan_req)
6902 return -ENOENT;
6903
6904 rdev_abort_scan(rdev, wdev);
6905 return 0;
6906}
6907
3b06d277
AS		 6908static int
6909nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6910 struct cfg80211_sched_scan_request *request,
6911 struct nlattr **attrs)
6912{
6913 int tmp, err, i = 0;
6914 struct nlattr *attr;
6915
6916 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6917 u32 interval;
6918
6919 /*
6920 * If scan plans are not specified,
5a88de53 6921 * %NL80211_ATTR_SCHED_SCAN_INTERVAL will be specified. In this
3b06d277
AS		 6922 * case one scan plan will be set with the specified scan
6923 * interval and infinite number of iterations.
6924 */
3b06d277
AS		 6925 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6926 if (!interval)
6927 return -EINVAL;
6928
6929 request->scan_plans[0].interval =
6930 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6931 if (!request->scan_plans[0].interval)
6932 return -EINVAL;
6933
6934 if (request->scan_plans[0].interval >
6935 wiphy->max_sched_scan_plan_interval)
6936 request->scan_plans[0].interval =
6937 wiphy->max_sched_scan_plan_interval;
6938
6939 return 0;
6940 }
6941
6942 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6943 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6944
6945 if (WARN_ON(i >= n_plans))
6946 return -EINVAL;
6947
bfe2c7b1 6948 err = nla_parse_nested(plan, NL80211_SCHED_SCAN_PLAN_MAX,
fceb6435 6949 attr, nl80211_plan_policy, NULL);
3b06d277
AS		 6950 if (err)
6951 return err;
6952
6953 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6954 return -EINVAL;
6955
6956 request->scan_plans[i].interval =
6957 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6958 if (!request->scan_plans[i].interval ||
6959 request->scan_plans[i].interval >
6960 wiphy->max_sched_scan_plan_interval)
6961 return -EINVAL;
6962
6963 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6964 request->scan_plans[i].iterations =
6965 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6966 if (!request->scan_plans[i].iterations ||
6967 (request->scan_plans[i].iterations >
6968 wiphy->max_sched_scan_plan_iterations))
6969 return -EINVAL;
6970 } else if (i < n_plans - 1) {
6971 /*
6972 * All scan plans but the last one must specify
6973 * a finite number of iterations
6974 */
6975 return -EINVAL;
6976 }
6977
6978 i++;
6979 }
6980
6981 /*
6982 * The last scan plan must not specify the number of
6983 * iterations, it is supposed to run infinitely
6984 */
6985 if (request->scan_plans[n_plans - 1].iterations)
6986 return -EINVAL;
6987
6988 return 0;
6989}
6990
256da02d 6991static struct cfg80211_sched_scan_request *
ad2b26ab 6992nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
aad1e812 6993 struct nlattr **attrs, int max_match_sets)
807f8a8c
LC		 6994{
6995 struct cfg80211_sched_scan_request *request;
807f8a8c 6996 struct nlattr *attr;
3b06d277 6997 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
57fbcce3 6998 enum nl80211_band band;
807f8a8c 6999 size_t ie_len;
a1f1c21c 7000 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 7001 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 7002
256da02d
LC		 7003 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
7004 return ERR_PTR(-EINVAL);
807f8a8c 7005
256da02d 7006 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 7007 n_channels = validate_scan_freqs(
256da02d 7008 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 7009 if (!n_channels)
256da02d 7010 return ERR_PTR(-EINVAL);
807f8a8c 7011 } else {
bdfbec2d 7012 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 7013 }
7014
256da02d
LC		 7015 if (attrs[NL80211_ATTR_SCAN_SSIDS])
7016 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 7017 tmp)
7018 n_ssids++;
7019
93b6aa69 7020 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 7021 return ERR_PTR(-EINVAL);
807f8a8c 7022
ea73cbce
JB		 7023 /*
7024 * First, count the number of 'real' matchsets. Due to an issue with
7025 * the old implementation, matchsets containing only the RSSI attribute
7026 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
7027 * RSSI for all matchsets, rather than their own matchset for reporting
7028 * all APs with a strong RSSI. This is needed to be compatible with
7029 * older userspace that treated a matchset with only the RSSI as the
7030 * global RSSI for all other matchsets - if there are other matchsets.
7031 */
256da02d 7032 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 7033 nla_for_each_nested(attr,
256da02d 7034 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 7035 tmp) {
7036 struct nlattr *rssi;
7037
bfe2c7b1
JB		 7038 err = nla_parse_nested(tb,
7039 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
fceb6435
JB		 7040 attr, nl80211_match_policy,
7041 NULL);
ea73cbce 7042 if (err)
256da02d 7043 return ERR_PTR(err);
3007e352
AVS		 7044
7045 /* SSID and BSSID are mutually exclusive */
7046 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] &&
7047 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID])
7048 return ERR_PTR(-EINVAL);
7049
ea73cbce 7050 /* add other standalone attributes here */
3007e352
AVS		 7051 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] ||
7052 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID]) {
ea73cbce
JB		 7053 n_match_sets++;
7054 continue;
7055 }
7056 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7057 if (rssi)
7058 default_match_rssi = nla_get_s32(rssi);
7059 }
7060 }
7061
7062 /* However, if there's no other matchset, add the RSSI one */
7063 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
7064 n_match_sets = 1;
a1f1c21c 7065
aad1e812 7066 if (n_match_sets > max_match_sets)
256da02d 7067 return ERR_PTR(-EINVAL);
a1f1c21c 7068
256da02d
LC		 7069 if (attrs[NL80211_ATTR_IE])
7070 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 7071 else
7072 ie_len = 0;
7073
5a865bad 7074 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 7075 return ERR_PTR(-EINVAL);
c10841ca 7076
3b06d277
AS		 7077 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
7078 /*
7079 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
7080 * each scan plan already specifies its own interval
7081 */
7082 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7083 return ERR_PTR(-EINVAL);
7084
7085 nla_for_each_nested(attr,
7086 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
7087 n_plans++;
7088 } else {
7089 /*
7090 * The scan interval attribute is kept for backward
7091 * compatibility. If no scan plans are specified and sched scan
7092 * interval is specified, one scan plan will be set with this
7093 * scan interval and infinite number of iterations.
7094 */
7095 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7096 return ERR_PTR(-EINVAL);
7097
7098 n_plans = 1;
7099 }
7100
7101 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
7102 return ERR_PTR(-EINVAL);
7103
bf95ecdb 7104 if (!wiphy_ext_feature_isset(
7105 wiphy, NL80211_EXT_FEATURE_SCHED_SCAN_RELATIVE_RSSI) &&
7106 (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] ||
7107 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]))
7108 return ERR_PTR(-EINVAL);
7109
807f8a8c 7110 request = kzalloc(sizeof(*request)
a2cd43c5 7111 + sizeof(*request->ssids) * n_ssids
a1f1c21c 7112 + sizeof(*request->match_sets) * n_match_sets
3b06d277 7113 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 7114 + sizeof(*request->channels) * n_channels
807f8a8c 7115 + ie_len, GFP_KERNEL);
256da02d
LC		 7116 if (!request)
7117 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 7118
7119 if (n_ssids)
7120 request->ssids = (void *)&request->channels[n_channels];
7121 request->n_ssids = n_ssids;
7122 if (ie_len) {
13874e4b 7123 if (n_ssids)
807f8a8c
LC		 7124 request->ie = (void *)(request->ssids + n_ssids);
7125 else
7126 request->ie = (void *)(request->channels + n_channels);
7127 }
7128
a1f1c21c
LC		 7129 if (n_match_sets) {
7130 if (request->ie)
7131 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 7132 else if (n_ssids)
a1f1c21c
LC		 7133 request->match_sets =
7134 (void *)(request->ssids + n_ssids);
7135 else
7136 request->match_sets =
7137 (void *)(request->channels + n_channels);
7138 }
7139 request->n_match_sets = n_match_sets;
7140
3b06d277
AS		 7141 if (n_match_sets)
7142 request->scan_plans = (void *)(request->match_sets +
7143 n_match_sets);
7144 else if (request->ie)
7145 request->scan_plans = (void *)(request->ie + ie_len);
7146 else if (n_ssids)
7147 request->scan_plans = (void *)(request->ssids + n_ssids);
7148 else
7149 request->scan_plans = (void *)(request->channels + n_channels);
7150
7151 request->n_scan_plans = n_plans;
7152
807f8a8c 7153 i = 0;
256da02d 7154 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 7155 /* user specified, bail out if channel not found */
7156 nla_for_each_nested(attr,
256da02d 7157 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 7158 tmp) {
7159 struct ieee80211_channel *chan;
7160
7161 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
7162
7163 if (!chan) {
7164 err = -EINVAL;
7165 goto out_free;
7166 }
7167
7168 /* ignore disabled channels */
7169 if (chan->flags & IEEE80211_CHAN_DISABLED)
7170 continue;
7171
7172 request->channels[i] = chan;
7173 i++;
7174 }
7175 } else {
7176 /* all channels */
57fbcce3 7177 for (band = 0; band < NUM_NL80211_BANDS; band++) {
807f8a8c 7178 int j;
7a087e74 7179
807f8a8c
LC		 7180 if (!wiphy->bands[band])
7181 continue;
7182 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
7183 struct ieee80211_channel *chan;
7184
7185 chan = &wiphy->bands[band]->channels[j];
7186
7187 if (chan->flags & IEEE80211_CHAN_DISABLED)
7188 continue;
7189
7190 request->channels[i] = chan;
7191 i++;
7192 }
7193 }
7194 }
7195
7196 if (!i) {
7197 err = -EINVAL;
7198 goto out_free;
7199 }
7200
7201 request->n_channels = i;
7202
7203 i = 0;
13874e4b 7204 if (n_ssids) {
256da02d 7205 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 7206 tmp) {
57a27e1d 7207 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 7208 err = -EINVAL;
7209 goto out_free;
7210 }
57a27e1d 7211 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 7212 memcpy(request->ssids[i].ssid, nla_data(attr),
7213 nla_len(attr));
807f8a8c
LC		 7214 i++;
7215 }
7216 }
7217
a1f1c21c 7218 i = 0;
256da02d 7219 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 7220 nla_for_each_nested(attr,
256da02d 7221 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 7222 tmp) {
3007e352 7223 struct nlattr *ssid, *bssid, *rssi;
a1f1c21c 7224
bfe2c7b1
JB		 7225 err = nla_parse_nested(tb,
7226 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
fceb6435
JB		 7227 attr, nl80211_match_policy,
7228 NULL);
ae811e21
JB		 7229 if (err)
7230 goto out_free;
4a4ab0d7 7231 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
3007e352
AVS		 7232 bssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID];
7233 if (ssid || bssid) {
ea73cbce
JB		 7234 if (WARN_ON(i >= n_match_sets)) {
7235 /* this indicates a programming error,
7236 * the loop above should have verified
7237 * things properly
7238 */
7239 err = -EINVAL;
7240 goto out_free;
7241 }
7242
3007e352
AVS		 7243 if (ssid) {
7244 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
7245 err = -EINVAL;
7246 goto out_free;
7247 }
7248 memcpy(request->match_sets[i].ssid.ssid,
7249 nla_data(ssid), nla_len(ssid));
7250 request->match_sets[i].ssid.ssid_len =
7251 nla_len(ssid);
7252 }
7253 if (bssid) {
7254 if (nla_len(bssid) != ETH_ALEN) {
7255 err = -EINVAL;
7256 goto out_free;
7257 }
7258 memcpy(request->match_sets[i].bssid,
7259 nla_data(bssid), ETH_ALEN);
a1f1c21c 7260 }
3007e352 7261
56ab364f 7262 /* special attribute - old implementation w/a */
ea73cbce
JB		 7263 request->match_sets[i].rssi_thold =
7264 default_match_rssi;
7265 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7266 if (rssi)
7267 request->match_sets[i].rssi_thold =
7268 nla_get_s32(rssi);
a1f1c21c
LC		 7269 }
7270 i++;
7271 }
ea73cbce
JB		 7272
7273 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 7274 if (i == 0 && n_match_sets)
ea73cbce
JB		 7275 request->match_sets[0].rssi_thold = default_match_rssi;
7276
7277 request->min_rssi_thold = INT_MAX;
7278 for (i = 0; i < n_match_sets; i++)
7279 request->min_rssi_thold =
7280 min(request->match_sets[i].rssi_thold,
7281 request->min_rssi_thold);
7282 } else {
7283 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 7284 }
7285
9900e484
JB		 7286 if (ie_len) {
7287 request->ie_len = ie_len;
807f8a8c 7288 memcpy((void *)request->ie,
256da02d 7289 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 7290 request->ie_len);
7291 }
7292
256da02d 7293 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 7294 request->flags = nla_get_u32(
256da02d 7295 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 7296 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
7297 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 7298 err = -EOPNOTSUPP;
7299 goto out_free;
7300 }
ad2b26ab
JB		 7301
7302 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
7303 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
7304
7305 if (!wdev) /* must be net-detect */
7306 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
7307
7308 if (!(wiphy->features & flg)) {
7309 err = -EOPNOTSUPP;
7310 goto out_free;
7311 }
7312
7313 if (wdev && wdev->current_bss) {
7314 err = -EOPNOTSUPP;
7315 goto out_free;
7316 }
7317
7318 err = nl80211_parse_random_mac(attrs, request->mac_addr,
7319 request->mac_addr_mask);
7320 if (err)
7321 goto out_free;
7322 }
46856bbf 7323 }
ed473771 7324
9c748934
LC		 7325 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
7326 request->delay =
7327 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
7328
bf95ecdb 7329 if (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]) {
7330 request->relative_rssi = nla_get_s8(
7331 attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]);
7332 request->relative_rssi_set = true;
7333 }
7334
7335 if (request->relative_rssi_set &&
7336 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]) {
7337 struct nl80211_bss_select_rssi_adjust *rssi_adjust;
7338
7339 rssi_adjust = nla_data(
7340 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]);
7341 request->rssi_adjust.band = rssi_adjust->band;
7342 request->rssi_adjust.delta = rssi_adjust->delta;
7343 if (!is_band_valid(wiphy, request->rssi_adjust.band)) {
7344 err = -EINVAL;
7345 goto out_free;
7346 }
7347 }
7348
3b06d277
AS		 7349 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
7350 if (err)
7351 goto out_free;
7352
15d6030b 7353 request->scan_start = jiffies;
807f8a8c 7354
256da02d 7355 return request;
807f8a8c
LC		 7356
7357out_free:
7358 kfree(request);
256da02d
LC		 7359 return ERR_PTR(err);
7360}
7361
7362static int nl80211_start_sched_scan(struct sk_buff *skb,
7363 struct genl_info *info)
7364{
7365 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7366 struct net_device *dev = info->user_ptr[1];
ad2b26ab 7367 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 7368 struct cfg80211_sched_scan_request *sched_scan_req;
ca986ad9 7369 bool want_multi;
256da02d
LC		 7370 int err;
7371
ca986ad9 7372 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_start)
256da02d
LC		 7373 return -EOPNOTSUPP;
7374
ca986ad9
AVS		 7375 want_multi = info->attrs[NL80211_ATTR_SCHED_SCAN_MULTI];
7376 err = cfg80211_sched_scan_req_possible(rdev, want_multi);
7377 if (err)
7378 return err;
256da02d 7379
31a60ed1 7380 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
aad1e812
AVS		 7381 info->attrs,
7382 rdev->wiphy.max_match_sets);
31a60ed1
JR		 7383
7384 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 7385 if (err)
7386 goto out_err;
7387
ca986ad9
AVS		 7388 /* leave request id zero for legacy request
7389 * or if driver does not support multi-scheduled scan
7390 */
7391 if (want_multi && rdev->wiphy.max_sched_scan_reqs > 1) {
7392 while (!sched_scan_req->reqid)
7393 sched_scan_req->reqid = rdev->wiphy.cookie_counter++;
7394 }
7395
31a60ed1 7396 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 7397 if (err)
7398 goto out_free;
7399
31a60ed1
JR		 7400 sched_scan_req->dev = dev;
7401 sched_scan_req->wiphy = &rdev->wiphy;
7402
93a1e86c
JR		 7403 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
7404 sched_scan_req->owner_nlportid = info->snd_portid;
7405
ca986ad9 7406 cfg80211_add_sched_scan_req(rdev, sched_scan_req);
256da02d 7407
96b08fd6 7408 nl80211_send_sched_scan(sched_scan_req, NL80211_CMD_START_SCHED_SCAN);
256da02d
LC		 7409 return 0;
7410
7411out_free:
31a60ed1 7412 kfree(sched_scan_req);
256da02d 7413out_err:
807f8a8c
LC		 7414 return err;
7415}
7416
7417static int nl80211_stop_sched_scan(struct sk_buff *skb,
7418 struct genl_info *info)
7419{
ca986ad9 7420 struct cfg80211_sched_scan_request *req;
807f8a8c 7421 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ca986ad9 7422 u64 cookie;
807f8a8c 7423
ca986ad9 7424 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_stop)
807f8a8c
LC		 7425 return -EOPNOTSUPP;
7426
ca986ad9
AVS		 7427 if (info->attrs[NL80211_ATTR_COOKIE]) {
7428 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7429 return __cfg80211_stop_sched_scan(rdev, cookie, false);
7430 }
7431
7432 req = list_first_or_null_rcu(&rdev->sched_scan_req_list,
7433 struct cfg80211_sched_scan_request,
7434 list);
7435 if (!req || req->reqid ||
7436 (req->owner_nlportid &&
7437 req->owner_nlportid != info->snd_portid))
7438 return -ENOENT;
7439
7440 return cfg80211_stop_sched_scan_req(rdev, req, false);
807f8a8c
LC		 7441}
7442
04f39047
SW		 7443static int nl80211_start_radar_detection(struct sk_buff *skb,
7444 struct genl_info *info)
7445{
7446 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7447 struct net_device *dev = info->user_ptr[1];
7448 struct wireless_dev *wdev = dev->ieee80211_ptr;
7449 struct cfg80211_chan_def chandef;
55f7435c 7450 enum nl80211_dfs_regions dfs_region;
31559f35 7451 unsigned int cac_time_ms;
04f39047
SW		 7452 int err;
7453
55f7435c
LR		 7454 dfs_region = reg_get_dfs_region(wdev->wiphy);
7455 if (dfs_region == NL80211_DFS_UNSET)
7456 return -EINVAL;
7457
04f39047
SW		 7458 err = nl80211_parse_chandef(rdev, info, &chandef);
7459 if (err)
7460 return err;
7461
ff311bc1
SW		 7462 if (netif_carrier_ok(dev))
7463 return -EBUSY;
7464
04f39047
SW		 7465 if (wdev->cac_started)
7466 return -EBUSY;
7467
2beb6dab 7468 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 7469 wdev->iftype);
04f39047
SW		 7470 if (err < 0)
7471 return err;
7472
7473 if (err == 0)
7474 return -EINVAL;
7475
fe7c3a1f 7476 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 7477 return -EINVAL;
7478
7479 if (!rdev->ops->start_radar_detection)
7480 return -EOPNOTSUPP;
7481
31559f35
JD		 7482 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
7483 if (WARN_ON(!cac_time_ms))
7484 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
7485
a1056b1b 7486 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 7487 if (!err) {
9e0e2961 7488 wdev->chandef = chandef;
04f39047
SW		 7489 wdev->cac_started = true;
7490 wdev->cac_start_time = jiffies;
31559f35 7491 wdev->cac_time_ms = cac_time_ms;
04f39047 7492 }
04f39047
SW		 7493 return err;
7494}
7495
16ef1fe2
SW		 7496static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
7497{
7498 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7499 struct net_device *dev = info->user_ptr[1];
7500 struct wireless_dev *wdev = dev->ieee80211_ptr;
7501 struct cfg80211_csa_settings params;
7502 /* csa_attrs is defined static to avoid waste of stack size - this
7503 * function is called under RTNL lock, so this should not be a problem.
7504 */
7505 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 7506 int err;
ee4bc9e7 7507 bool need_new_beacon = false;
8d9de16f 7508 bool need_handle_dfs_flag = true;
9a774c78 7509 int len, i;
252e07ca 7510 u32 cs_count;
16ef1fe2
SW		 7511
7512 if (!rdev->ops->channel_switch ||
7513 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
7514 return -EOPNOTSUPP;
7515
ee4bc9e7
SW		 7516 switch (dev->ieee80211_ptr->iftype) {
7517 case NL80211_IFTYPE_AP:
7518 case NL80211_IFTYPE_P2P_GO:
7519 need_new_beacon = true;
8d9de16f
BB		 7520 /* For all modes except AP the handle_dfs flag needs to be
7521 * supplied to tell the kernel that userspace will handle radar
7522 * events when they happen. Otherwise a switch to a channel
7523 * requiring DFS will be rejected.
7524 */
7525 need_handle_dfs_flag = false;
ee4bc9e7
SW		 7526
7527 /* useless if AP is not running */
7528 if (!wdev->beacon_interval)
1ff79dfa 7529 return -ENOTCONN;
ee4bc9e7
SW		 7530 break;
7531 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 7532 if (!wdev->ssid_len)
7533 return -ENOTCONN;
7534 break;
c6da674a 7535 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 7536 if (!wdev->mesh_id_len)
7537 return -ENOTCONN;
ee4bc9e7
SW		 7538 break;
7539 default:
16ef1fe2 7540 return -EOPNOTSUPP;
ee4bc9e7 7541 }
16ef1fe2
SW		 7542
7543 memset(&params, 0, sizeof(params));
7544
7545 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7546 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
7547 return -EINVAL;
7548
7549 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 7550 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 7551 return -EINVAL;
7552
252e07ca
LC		 7553 /* Even though the attribute is u32, the specification says
7554 * u8, so let's make sure we don't overflow.
7555 */
7556 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
7557 if (cs_count > 255)
7558 return -EINVAL;
7559
7560 params.count = cs_count;
16ef1fe2 7561
ee4bc9e7
SW		 7562 if (!need_new_beacon)
7563 goto skip_beacons;
7564
16ef1fe2
SW		 7565 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
7566 if (err)
7567 return err;
7568
7569 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
7570 info->attrs[NL80211_ATTR_CSA_IES],
fe52145f 7571 nl80211_policy, info->extack);
16ef1fe2
SW		 7572 if (err)
7573 return err;
7574
7575 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
7576 if (err)
7577 return err;
7578
7579 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
7580 return -EINVAL;
7581
9a774c78
AO		 7582 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7583 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7584 return -EINVAL;
7585
9a774c78
AO		 7586 params.n_counter_offsets_beacon = len / sizeof(u16);
7587 if (rdev->wiphy.max_num_csa_counters &&
7588 (params.n_counter_offsets_beacon >
7589 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 7590 return -EINVAL;
7591
9a774c78
AO		 7592 params.counter_offsets_beacon =
7593 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7594
7595 /* sanity checks - counters should fit and be the same */
7596 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7597 u16 offset = params.counter_offsets_beacon[i];
7598
7599 if (offset >= params.beacon_csa.tail_len)
7600 return -EINVAL;
7601
7602 if (params.beacon_csa.tail[offset] != params.count)
7603 return -EINVAL;
7604 }
7605
16ef1fe2 7606 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 7607 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7608 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7609 return -EINVAL;
7610
9a774c78
AO		 7611 params.n_counter_offsets_presp = len / sizeof(u16);
7612 if (rdev->wiphy.max_num_csa_counters &&
ad5987b4 7613 (params.n_counter_offsets_presp >
9a774c78 7614 rdev->wiphy.max_num_csa_counters))
16ef1fe2 7615 return -EINVAL;
9a774c78
AO		 7616
7617 params.counter_offsets_presp =
7618 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7619
7620 /* sanity checks - counters should fit and be the same */
7621 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7622 u16 offset = params.counter_offsets_presp[i];
7623
7624 if (offset >= params.beacon_csa.probe_resp_len)
7625 return -EINVAL;
7626
7627 if (params.beacon_csa.probe_resp[offset] !=
7628 params.count)
7629 return -EINVAL;
7630 }
16ef1fe2
SW		 7631 }
7632
ee4bc9e7 7633skip_beacons:
16ef1fe2
SW		 7634 err = nl80211_parse_chandef(rdev, info, &params.chandef);
7635 if (err)
7636 return err;
7637
923b352f
AN		 7638 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
7639 wdev->iftype))
16ef1fe2
SW		 7640 return -EINVAL;
7641
2beb6dab
LC		 7642 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7643 &params.chandef,
7644 wdev->iftype);
7645 if (err < 0)
7646 return err;
7647
8d9de16f 7648 if (err > 0) {
2beb6dab 7649 params.radar_required = true;
8d9de16f
BB		 7650 if (need_handle_dfs_flag &&
7651 !nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS])) {
7652 return -EINVAL;
7653 }
7654 }
16ef1fe2 7655
16ef1fe2
SW		 7656 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7657 params.block_tx = true;
7658
c56589ed
SW		 7659 wdev_lock(wdev);
7660 err = rdev_channel_switch(rdev, dev, &params);
7661 wdev_unlock(wdev);
7662
7663 return err;
16ef1fe2
SW		 7664}
7665
9720bb3a
JB		 7666static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7667 u32 seq, int flags,
2a519311 7668 struct cfg80211_registered_device *rdev,
48ab905d
JB		 7669 struct wireless_dev *wdev,
7670 struct cfg80211_internal_bss *intbss)
2a519311 7671{
48ab905d 7672 struct cfg80211_bss *res = &intbss->pub;
9caf0364 7673 const struct cfg80211_bss_ies *ies;
2a519311
JB		 7674 void *hdr;
7675 struct nlattr *bss;
48ab905d
JB		 7676
7677 ASSERT_WDEV_LOCK(wdev);
2a519311 7678
15e47304 7679 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 7680 NL80211_CMD_NEW_SCAN_RESULTS);
7681 if (!hdr)
7682 return -1;
7683
9720bb3a
JB		 7684 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7685
97990a06
JB		 7686 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7687 goto nla_put_failure;
7688 if (wdev->netdev &&
9360ffd1
DM		 7689 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7690 goto nla_put_failure;
2dad624e
ND		 7691 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7692 NL80211_ATTR_PAD))
97990a06 7693 goto nla_put_failure;
2a519311
JB		 7694
7695 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7696 if (!bss)
7697 goto nla_put_failure;
9360ffd1 7698 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 7699 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 7700 goto nla_put_failure;
9caf0364
JB		 7701
7702 rcu_read_lock();
0e227084
JB		 7703 /* indicate whether we have probe response data or not */
7704 if (rcu_access_pointer(res->proberesp_ies) &&
7705 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7706 goto fail_unlock_rcu;
7707
7708 /* this pointer prefers to be pointed to probe response data
7709 * but is always valid
7710 */
9caf0364 7711 ies = rcu_dereference(res->ies);
8cef2c9d 7712 if (ies) {
2dad624e
ND		 7713 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7714 NL80211_BSS_PAD))
8cef2c9d 7715 goto fail_unlock_rcu;
8cef2c9d
JB		 7716 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7717 ies->len, ies->data))
7718 goto fail_unlock_rcu;
9caf0364 7719 }
0e227084
JB		 7720
7721 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 7722 ies = rcu_dereference(res->beacon_ies);
0e227084 7723 if (ies && ies->from_beacon) {
2dad624e
ND		 7724 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7725 NL80211_BSS_PAD))
8cef2c9d
JB		 7726 goto fail_unlock_rcu;
7727 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7728 ies->len, ies->data))
7729 goto fail_unlock_rcu;
9caf0364
JB		 7730 }
7731 rcu_read_unlock();
7732
9360ffd1
DM		 7733 if (res->beacon_interval &&
7734 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7735 goto nla_put_failure;
7736 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7737 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 7738 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 7739 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7740 jiffies_to_msecs(jiffies - intbss->ts)))
7741 goto nla_put_failure;
2a519311 7742
1d76250b
AS		 7743 if (intbss->parent_tsf &&
7744 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7745 intbss->parent_tsf, NL80211_BSS_PAD) ||
7746 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7747 intbss->parent_bssid)))
7748 goto nla_put_failure;
7749
6e19bc4b 7750 if (intbss->ts_boottime &&
2dad624e
ND		 7751 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7752 intbss->ts_boottime, NL80211_BSS_PAD))
6e19bc4b
DS		 7753 goto nla_put_failure;
7754
77965c97 7755 switch (rdev->wiphy.signal_type) {
2a519311 7756 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 7757 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7758 goto nla_put_failure;
2a519311
JB		 7759 break;
7760 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 7761 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7762 goto nla_put_failure;
2a519311
JB		 7763 break;
7764 default:
7765 break;
7766 }
7767
48ab905d 7768 switch (wdev->iftype) {
074ac8df 7769 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 7770 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 7771 if (intbss == wdev->current_bss &&
7772 nla_put_u32(msg, NL80211_BSS_STATUS,
7773 NL80211_BSS_STATUS_ASSOCIATED))
7774 goto nla_put_failure;
48ab905d
JB		 7775 break;
7776 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 7777 if (intbss == wdev->current_bss &&
7778 nla_put_u32(msg, NL80211_BSS_STATUS,
7779 NL80211_BSS_STATUS_IBSS_JOINED))
7780 goto nla_put_failure;
48ab905d
JB		 7781 break;
7782 default:
7783 break;
7784 }
7785
2a519311
JB		 7786 nla_nest_end(msg, bss);
7787
053c095a
JB		 7788 genlmsg_end(msg, hdr);
7789 return 0;
2a519311 7790
8cef2c9d
JB		 7791 fail_unlock_rcu:
7792 rcu_read_unlock();
2a519311
JB		 7793 nla_put_failure:
7794 genlmsg_cancel(msg, hdr);
7795 return -EMSGSIZE;
7796}
7797
97990a06 7798static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 7799{
48ab905d 7800 struct cfg80211_registered_device *rdev;
2a519311 7801 struct cfg80211_internal_bss *scan;
48ab905d 7802 struct wireless_dev *wdev;
97990a06 7803 int start = cb->args[2], idx = 0;
2a519311
JB		 7804 int err;
7805
ea90e0dc 7806 rtnl_lock();
97990a06 7807 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
ea90e0dc
JB		 7808 if (err) {
7809 rtnl_unlock();
67748893 7810 return err;
ea90e0dc 7811 }
2a519311 7812
48ab905d
JB		 7813 wdev_lock(wdev);
7814 spin_lock_bh(&rdev->bss_lock);
7815 cfg80211_bss_expire(rdev);
7816
9720bb3a
JB		 7817 cb->seq = rdev->bss_generation;
7818
48ab905d 7819 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 7820 if (++idx <= start)
7821 continue;
9720bb3a 7822 if (nl80211_send_bss(skb, cb,
2a519311 7823 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 7824 rdev, wdev, scan) < 0) {
2a519311 7825 idx--;
67748893 7826 break;
2a519311
JB		 7827 }
7828 }
7829
48ab905d
JB		 7830 spin_unlock_bh(&rdev->bss_lock);
7831 wdev_unlock(wdev);
2a519311 7832
97990a06 7833 cb->args[2] = idx;
ea90e0dc 7834 rtnl_unlock();
2a519311 7835
67748893 7836 return skb->len;
2a519311
JB		 7837}
7838
15e47304 7839static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7840 int flags, struct net_device *dev,
7841 bool allow_radio_stats,
7842 struct survey_info *survey)
61fa713c
HS		 7843{
7844 void *hdr;
7845 struct nlattr *infoattr;
7846
11f78ac3
JB		 7847 /* skip radio stats if userspace didn't request them */
7848 if (!survey->channel && !allow_radio_stats)
7849 return 0;
7850
15e47304 7851 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7852 NL80211_CMD_NEW_SURVEY_RESULTS);
7853 if (!hdr)
7854 return -ENOMEM;
7855
9360ffd1
DM		 7856 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7857 goto nla_put_failure;
61fa713c
HS		 7858
7859 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7860 if (!infoattr)
7861 goto nla_put_failure;
7862
11f78ac3
JB		 7863 if (survey->channel &&
7864 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7865 survey->channel->center_freq))
7866 goto nla_put_failure;
7867
7868 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7869 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7870 goto nla_put_failure;
7871 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7872 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7873 goto nla_put_failure;
4ed20beb 7874 if ((survey->filled & SURVEY_INFO_TIME) &&
2dad624e
ND		 7875 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7876 survey->time, NL80211_SURVEY_INFO_PAD))
9360ffd1 7877 goto nla_put_failure;
4ed20beb 7878 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
2dad624e
ND		 7879 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7880 survey->time_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7881 goto nla_put_failure;
4ed20beb 7882 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
2dad624e
ND		 7883 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7884 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7885 goto nla_put_failure;
4ed20beb 7886 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
2dad624e
ND		 7887 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7888 survey->time_rx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7889 goto nla_put_failure;
4ed20beb 7890 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
2dad624e
ND		 7891 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7892 survey->time_tx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7893 goto nla_put_failure;
052536ab 7894 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
2dad624e
ND		 7895 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7896 survey->time_scan, NL80211_SURVEY_INFO_PAD))
052536ab 7897 goto nla_put_failure;
61fa713c
HS		 7898
7899 nla_nest_end(msg, infoattr);
7900
053c095a
JB		 7901 genlmsg_end(msg, hdr);
7902 return 0;
61fa713c
HS		 7903
7904 nla_put_failure:
7905 genlmsg_cancel(msg, hdr);
7906 return -EMSGSIZE;
7907}
7908
11f78ac3 7909static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c 7910{
c90c39da 7911 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
61fa713c 7912 struct survey_info survey;
1b8ec87a 7913 struct cfg80211_registered_device *rdev;
97990a06
JB		 7914 struct wireless_dev *wdev;
7915 int survey_idx = cb->args[2];
61fa713c 7916 int res;
11f78ac3 7917 bool radio_stats;
61fa713c 7918
ea90e0dc 7919 rtnl_lock();
1b8ec87a 7920 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893 7921 if (res)
ea90e0dc 7922 goto out_err;
61fa713c 7923
11f78ac3 7924 /* prepare_wdev_dump parsed the attributes */
c90c39da 7925 radio_stats = attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
11f78ac3 7926
97990a06
JB		 7927 if (!wdev->netdev) {
7928 res = -EINVAL;
7929 goto out_err;
7930 }
7931
1b8ec87a 7932 if (!rdev->ops->dump_survey) {
61fa713c
HS		 7933 res = -EOPNOTSUPP;
7934 goto out_err;
7935 }
7936
7937 while (1) {
1b8ec87a 7938 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 7939 if (res == -ENOENT)
7940 break;
7941 if (res)
7942 goto out_err;
7943
11f78ac3
JB		 7944 /* don't send disabled channels, but do send non-channel data */
7945 if (survey.channel &&
7946 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 7947 survey_idx++;
7948 continue;
7949 }
7950
61fa713c 7951 if (nl80211_send_survey(skb,
15e47304 7952 NETLINK_CB(cb->skb).portid,
61fa713c 7953 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 7954 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 7955 goto out;
7956 survey_idx++;
7957 }
7958
7959 out:
97990a06 7960 cb->args[2] = survey_idx;
61fa713c
HS		 7961 res = skb->len;
7962 out_err:
ea90e0dc 7963 rtnl_unlock();
61fa713c
HS		 7964 return res;
7965}
7966
b23aa676
SO		 7967static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7968{
7969 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7970 NL80211_WPA_VERSION_2));
7971}
7972
636a5d36
JM		 7973static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7974{
4c476991
JB		 7975 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7976 struct net_device *dev = info->user_ptr[1];
19957bb3 7977 struct ieee80211_channel *chan;
11b6b5a4
JM		 7978 const u8 *bssid, *ssid, *ie = NULL, *auth_data = NULL;
7979 int err, ssid_len, ie_len = 0, auth_data_len = 0;
19957bb3 7980 enum nl80211_auth_type auth_type;
fffd0934 7981 struct key_parse key;
d5cdfacb 7982 bool local_state_change;
636a5d36 7983
f4a11bb0
JB		 7984 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7985 return -EINVAL;
7986
7987 if (!info->attrs[NL80211_ATTR_MAC])
7988 return -EINVAL;
7989
1778092e
JM		 7990 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7991 return -EINVAL;
7992
19957bb3
JB		 7993 if (!info->attrs[NL80211_ATTR_SSID])
7994 return -EINVAL;
7995
7996 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7997 return -EINVAL;
7998
fffd0934
JB		 7999 err = nl80211_parse_key(info, &key);
8000 if (err)
8001 return err;
8002
8003 if (key.idx >= 0) {
e31b8213
JB		 8004 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
8005 return -EINVAL;
fffd0934
JB		 8006 if (!key.p.key || !key.p.key_len)
8007 return -EINVAL;
8008 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
8009 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
8010 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
8011 key.p.key_len != WLAN_KEY_LEN_WEP104))
8012 return -EINVAL;
b6b5555b 8013 if (key.idx > 3)
fffd0934
JB		 8014 return -EINVAL;
8015 } else {
8016 key.p.key_len = 0;
8017 key.p.key = NULL;
8018 }
8019
afea0b7a
JB		 8020 if (key.idx >= 0) {
8021 int i;
8022 bool ok = false;
7a087e74 8023
afea0b7a
JB		 8024 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
8025 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
8026 ok = true;
8027 break;
8028 }
8029 }
4c476991
JB		 8030 if (!ok)
8031 return -EINVAL;
afea0b7a
JB		 8032 }
8033
4c476991
JB		 8034 if (!rdev->ops->auth)
8035 return -EOPNOTSUPP;
636a5d36 8036
074ac8df 8037 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8038 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8039 return -EOPNOTSUPP;
eec60b03 8040
19957bb3 8041 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 8042 chan = nl80211_get_valid_chan(&rdev->wiphy,
8043 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8044 if (!chan)
4c476991 8045 return -EINVAL;
636a5d36 8046
19957bb3
JB		 8047 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8048 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 8049
8050 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8051 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8052 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8053 }
8054
19957bb3 8055 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 8056 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 8057 return -EINVAL;
636a5d36 8058
63181060
JM		 8059 if ((auth_type == NL80211_AUTHTYPE_SAE ||
8060 auth_type == NL80211_AUTHTYPE_FILS_SK ||
8061 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
8062 auth_type == NL80211_AUTHTYPE_FILS_PK) &&
11b6b5a4 8063 !info->attrs[NL80211_ATTR_AUTH_DATA])
e39e5b5e
JM		 8064 return -EINVAL;
8065
11b6b5a4 8066 if (info->attrs[NL80211_ATTR_AUTH_DATA]) {
63181060
JM		 8067 if (auth_type != NL80211_AUTHTYPE_SAE &&
8068 auth_type != NL80211_AUTHTYPE_FILS_SK &&
8069 auth_type != NL80211_AUTHTYPE_FILS_SK_PFS &&
8070 auth_type != NL80211_AUTHTYPE_FILS_PK)
e39e5b5e 8071 return -EINVAL;
11b6b5a4
JM		 8072 auth_data = nla_data(info->attrs[NL80211_ATTR_AUTH_DATA]);
8073 auth_data_len = nla_len(info->attrs[NL80211_ATTR_AUTH_DATA]);
e39e5b5e 8074 /* need to include at least Auth Transaction and Status Code */
11b6b5a4 8075 if (auth_data_len < 4)
e39e5b5e
JM		 8076 return -EINVAL;
8077 }
8078
d5cdfacb
JM		 8079 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8080
95de817b
JB		 8081 /*
8082 * Since we no longer track auth state, ignore
8083 * requests to only change local state.
8084 */
8085 if (local_state_change)
8086 return 0;
8087
91bf9b26
JB		 8088 wdev_lock(dev->ieee80211_ptr);
8089 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
8090 ssid, ssid_len, ie, ie_len,
8091 key.p.key, key.p.key_len, key.idx,
11b6b5a4 8092 auth_data, auth_data_len);
91bf9b26
JB		 8093 wdev_unlock(dev->ieee80211_ptr);
8094 return err;
636a5d36
JM		 8095}
8096
c0692b8f
JB		 8097static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
8098 struct genl_info *info,
3dc27d25
JB		 8099 struct cfg80211_crypto_settings *settings,
8100 int cipher_limit)
b23aa676 8101{
c0b2bbd8
JB		 8102 memset(settings, 0, sizeof(*settings));
8103
b23aa676
SO		 8104 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
8105
c0692b8f
JB		 8106 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
8107 u16 proto;
7a087e74 8108
c0692b8f
JB		 8109 proto = nla_get_u16(
8110 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
8111 settings->control_port_ethertype = cpu_to_be16(proto);
8112 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
8113 proto != ETH_P_PAE)
8114 return -EINVAL;
8115 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
8116 settings->control_port_no_encrypt = true;
8117 } else
8118 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
8119
b23aa676
SO		 8120 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
8121 void *data;
8122 int len, i;
8123
8124 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8125 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8126 settings->n_ciphers_pairwise = len / sizeof(u32);
8127
8128 if (len % sizeof(u32))
8129 return -EINVAL;
8130
3dc27d25 8131 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 8132 return -EINVAL;
8133
8134 memcpy(settings->ciphers_pairwise, data, len);
8135
8136 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 8137 if (!cfg80211_supported_cipher_suite(
8138 &rdev->wiphy,
b23aa676
SO		 8139 settings->ciphers_pairwise[i]))
8140 return -EINVAL;
8141 }
8142
8143 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
8144 settings->cipher_group =
8145 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 8146 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
8147 settings->cipher_group))
b23aa676
SO		 8148 return -EINVAL;
8149 }
8150
8151 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
8152 settings->wpa_versions =
8153 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
8154 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
8155 return -EINVAL;
8156 }
8157
8158 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
8159 void *data;
6d30240e 8160 int len;
b23aa676
SO		 8161
8162 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
8163 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
8164 settings->n_akm_suites = len / sizeof(u32);
8165
8166 if (len % sizeof(u32))
8167 return -EINVAL;
8168
1b9ca027
JM		 8169 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
8170 return -EINVAL;
8171
b23aa676 8172 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 8173 }
8174
91b5ab62
EP		 8175 if (info->attrs[NL80211_ATTR_PMK]) {
8176 if (nla_len(info->attrs[NL80211_ATTR_PMK]) != WLAN_PMK_LEN)
8177 return -EINVAL;
8178 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8179 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK))
8180 return -EINVAL;
8181 settings->psk = nla_data(info->attrs[NL80211_ATTR_PMK]);
8182 }
8183
b23aa676
SO		 8184 return 0;
8185}
8186
636a5d36
JM		 8187static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
8188{
4c476991
JB		 8189 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8190 struct net_device *dev = info->user_ptr[1];
f444de05 8191 struct ieee80211_channel *chan;
f62fab73
JB		 8192 struct cfg80211_assoc_request req = {};
8193 const u8 *bssid, *ssid;
8194 int err, ssid_len = 0;
636a5d36 8195
f4a11bb0
JB		 8196 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8197 return -EINVAL;
8198
8199 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 8200 !info->attrs[NL80211_ATTR_SSID] ||
8201 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 8202 return -EINVAL;
8203
4c476991
JB		 8204 if (!rdev->ops->assoc)
8205 return -EOPNOTSUPP;
636a5d36 8206
074ac8df 8207 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8208 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8209 return -EOPNOTSUPP;
eec60b03 8210
19957bb3 8211 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8212
664834de
JM		 8213 chan = nl80211_get_valid_chan(&rdev->wiphy,
8214 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8215 if (!chan)
4c476991 8216 return -EINVAL;
636a5d36 8217
19957bb3
JB		 8218 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8219 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 8220
8221 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 8222 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8223 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8224 }
8225
dc6382ce 8226 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 8227 enum nl80211_mfp mfp =
dc6382ce 8228 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 8229 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 8230 req.use_mfp = true;
4c476991
JB		 8231 else if (mfp != NL80211_MFP_NO)
8232 return -EINVAL;
dc6382ce
JM		 8233 }
8234
3e5d7649 8235 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 8236 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 8237
7e7c8926 8238 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 8239 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 8240
8241 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 8242 memcpy(&req.ht_capa_mask,
8243 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8244 sizeof(req.ht_capa_mask));
7e7c8926
BG		 8245
8246 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 8247 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 8248 return -EINVAL;
f62fab73
JB		 8249 memcpy(&req.ht_capa,
8250 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8251 sizeof(req.ht_capa));
7e7c8926
BG		 8252 }
8253
ee2aca34 8254 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 8255 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 8256
8257 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 8258 memcpy(&req.vht_capa_mask,
8259 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8260 sizeof(req.vht_capa_mask));
ee2aca34
JB		 8261
8262 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 8263 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 8264 return -EINVAL;
f62fab73
JB		 8265 memcpy(&req.vht_capa,
8266 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8267 sizeof(req.vht_capa));
ee2aca34
JB		 8268 }
8269
bab5ab7d 8270 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8271 if (!((rdev->wiphy.features &
8272 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8273 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8274 !wiphy_ext_feature_isset(&rdev->wiphy,
8275 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 8276 return -EINVAL;
8277 req.flags |= ASSOC_REQ_USE_RRM;
8278 }
8279
348bd456
JM		 8280 if (info->attrs[NL80211_ATTR_FILS_KEK]) {
8281 req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
8282 req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
8283 if (!info->attrs[NL80211_ATTR_FILS_NONCES])
8284 return -EINVAL;
8285 req.fils_nonces =
8286 nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
8287 }
8288
f62fab73 8289 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 8290 if (!err) {
8291 wdev_lock(dev->ieee80211_ptr);
bd2522b1 8292
f62fab73
JB		 8293 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
8294 ssid, ssid_len, &req);
bd2522b1
AZ		 8295
8296 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8297 dev->ieee80211_ptr->conn_owner_nlportid =
8298 info->snd_portid;
8299 memcpy(dev->ieee80211_ptr->disconnect_bssid,
8300 bssid, ETH_ALEN);
8301 }
8302
91bf9b26
JB		 8303 wdev_unlock(dev->ieee80211_ptr);
8304 }
636a5d36 8305
636a5d36
JM		 8306 return err;
8307}
8308
8309static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
8310{
4c476991
JB		 8311 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8312 struct net_device *dev = info->user_ptr[1];
19957bb3 8313 const u8 *ie = NULL, *bssid;
91bf9b26 8314 int ie_len = 0, err;
19957bb3 8315 u16 reason_code;
d5cdfacb 8316 bool local_state_change;
636a5d36 8317
f4a11bb0
JB		 8318 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8319 return -EINVAL;
8320
8321 if (!info->attrs[NL80211_ATTR_MAC])
8322 return -EINVAL;
8323
8324 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8325 return -EINVAL;
8326
4c476991
JB		 8327 if (!rdev->ops->deauth)
8328 return -EOPNOTSUPP;
636a5d36 8329
074ac8df 8330 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8331 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8332 return -EOPNOTSUPP;
eec60b03 8333
19957bb3 8334 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8335
19957bb3
JB		 8336 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8337 if (reason_code == 0) {
f4a11bb0 8338 /* Reason Code 0 is reserved */
4c476991 8339 return -EINVAL;
255e737e 8340 }
636a5d36
JM		 8341
8342 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8343 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8344 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8345 }
8346
d5cdfacb
JM		 8347 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8348
91bf9b26
JB		 8349 wdev_lock(dev->ieee80211_ptr);
8350 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
8351 local_state_change);
8352 wdev_unlock(dev->ieee80211_ptr);
8353 return err;
636a5d36
JM		 8354}
8355
8356static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
8357{
4c476991
JB		 8358 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8359 struct net_device *dev = info->user_ptr[1];
19957bb3 8360 const u8 *ie = NULL, *bssid;
91bf9b26 8361 int ie_len = 0, err;
19957bb3 8362 u16 reason_code;
d5cdfacb 8363 bool local_state_change;
636a5d36 8364
f4a11bb0
JB		 8365 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8366 return -EINVAL;
8367
8368 if (!info->attrs[NL80211_ATTR_MAC])
8369 return -EINVAL;
8370
8371 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8372 return -EINVAL;
8373
4c476991
JB		 8374 if (!rdev->ops->disassoc)
8375 return -EOPNOTSUPP;
636a5d36 8376
074ac8df 8377 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8378 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8379 return -EOPNOTSUPP;
eec60b03 8380
19957bb3 8381 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8382
19957bb3
JB		 8383 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8384 if (reason_code == 0) {
f4a11bb0 8385 /* Reason Code 0 is reserved */
4c476991 8386 return -EINVAL;
255e737e 8387 }
636a5d36
JM		 8388
8389 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8390 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8391 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8392 }
8393
d5cdfacb
JM		 8394 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8395
91bf9b26
JB		 8396 wdev_lock(dev->ieee80211_ptr);
8397 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
8398 local_state_change);
8399 wdev_unlock(dev->ieee80211_ptr);
8400 return err;
636a5d36
JM		 8401}
8402
dd5b4cc7
FF		 8403static bool
8404nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
57fbcce3 8405 int mcast_rate[NUM_NL80211_BANDS],
dd5b4cc7
FF		 8406 int rateval)
8407{
8408 struct wiphy *wiphy = &rdev->wiphy;
8409 bool found = false;
8410 int band, i;
8411
57fbcce3 8412 for (band = 0; band < NUM_NL80211_BANDS; band++) {
dd5b4cc7
FF		 8413 struct ieee80211_supported_band *sband;
8414
8415 sband = wiphy->bands[band];
8416 if (!sband)
8417 continue;
8418
8419 for (i = 0; i < sband->n_bitrates; i++) {
8420 if (sband->bitrates[i].bitrate == rateval) {
8421 mcast_rate[band] = i + 1;
8422 found = true;
8423 break;
8424 }
8425 }
8426 }
8427
8428 return found;
8429}
8430
04a773ad
JB		 8431static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
8432{
4c476991
JB		 8433 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8434 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 8435 struct cfg80211_ibss_params ibss;
8436 struct wiphy *wiphy;
fffd0934 8437 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 8438 int err;
8439
8e30bc55
JB		 8440 memset(&ibss, 0, sizeof(ibss));
8441
04a773ad
JB		 8442 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8443 return -EINVAL;
8444
683b6d3b 8445 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 8446 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8447 return -EINVAL;
8448
8e30bc55
JB		 8449 ibss.beacon_interval = 100;
8450
12d20fc9 8451 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8e30bc55
JB		 8452 ibss.beacon_interval =
8453 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9 8454
0c317a02
PK		 8455 err = cfg80211_validate_beacon_int(rdev, NL80211_IFTYPE_ADHOC,
8456 ibss.beacon_interval);
12d20fc9
PK		 8457 if (err)
8458 return err;
8e30bc55 8459
4c476991
JB		 8460 if (!rdev->ops->join_ibss)
8461 return -EOPNOTSUPP;
04a773ad 8462
4c476991
JB		 8463 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8464 return -EOPNOTSUPP;
04a773ad 8465
79c97e97 8466 wiphy = &rdev->wiphy;
04a773ad 8467
39193498 8468 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 8469 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 8470
8471 if (!is_valid_ether_addr(ibss.bssid))
8472 return -EINVAL;
8473 }
04a773ad
JB		 8474 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8475 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8476
8477 if (info->attrs[NL80211_ATTR_IE]) {
8478 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8479 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8480 }
8481
683b6d3b
JB		 8482 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
8483 if (err)
8484 return err;
04a773ad 8485
174e0cd2
IP		 8486 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
8487 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 8488 return -EINVAL;
8489
2f301ab2 8490 switch (ibss.chandef.width) {
bf372645
SW		 8491 case NL80211_CHAN_WIDTH_5:
8492 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 8493 case NL80211_CHAN_WIDTH_20_NOHT:
8494 break;
8495 case NL80211_CHAN_WIDTH_20:
8496 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 8497 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8498 return -EINVAL;
8499 break;
8500 case NL80211_CHAN_WIDTH_80:
8501 case NL80211_CHAN_WIDTH_80P80:
8502 case NL80211_CHAN_WIDTH_160:
8503 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8504 return -EINVAL;
8505 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8506 NL80211_EXT_FEATURE_VHT_IBSS))
8507 return -EINVAL;
8508 break;
2f301ab2 8509 default:
c04d6150 8510 return -EINVAL;
2f301ab2 8511 }
db9c64cf 8512
04a773ad 8513 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 8514 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
8515
fbd2c8dc
TP		 8516 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8517 u8 *rates =
8518 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8519 int n_rates =
8520 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8521 struct ieee80211_supported_band *sband =
683b6d3b 8522 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 8523
34850ab2
JB		 8524 err = ieee80211_get_ratemask(sband, rates, n_rates,
8525 &ibss.basic_rates);
8526 if (err)
8527 return err;
fbd2c8dc 8528 }
dd5b4cc7 8529
803768f5
SW		 8530 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8531 memcpy(&ibss.ht_capa_mask,
8532 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8533 sizeof(ibss.ht_capa_mask));
8534
8535 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8536 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8537 return -EINVAL;
8538 memcpy(&ibss.ht_capa,
8539 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8540 sizeof(ibss.ht_capa));
8541 }
8542
dd5b4cc7
FF		 8543 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8544 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
8545 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8546 return -EINVAL;
fbd2c8dc 8547
4c476991 8548 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 8549 bool no_ht = false;
8550
4c476991 8551 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 8552 info->attrs[NL80211_ATTR_KEYS],
8553 &no_ht);
4c476991
JB		 8554 if (IS_ERR(connkeys))
8555 return PTR_ERR(connkeys);
de7044ee 8556
3d9d1d66
JB		 8557 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
8558 no_ht) {
5e950a78 8559 kzfree(connkeys);
de7044ee
SM		 8560 return -EINVAL;
8561 }
4c476991 8562 }
04a773ad 8563
267335d6
AQ		 8564 ibss.control_port =
8565 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
8566
5336fa88
SW		 8567 ibss.userspace_handles_dfs =
8568 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
8569
4c476991 8570 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 8571 if (err)
b47f610b 8572 kzfree(connkeys);
04a773ad
JB		 8573 return err;
8574}
8575
8576static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
8577{
4c476991
JB		 8578 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8579 struct net_device *dev = info->user_ptr[1];
04a773ad 8580
4c476991
JB		 8581 if (!rdev->ops->leave_ibss)
8582 return -EOPNOTSUPP;
04a773ad 8583
4c476991
JB		 8584 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8585 return -EOPNOTSUPP;
04a773ad 8586
4c476991 8587 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 8588}
8589
f4e583c8
AQ		 8590static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
8591{
8592 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8593 struct net_device *dev = info->user_ptr[1];
57fbcce3 8594 int mcast_rate[NUM_NL80211_BANDS];
f4e583c8
AQ		 8595 u32 nla_rate;
8596 int err;
8597
8598 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 8599 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
8600 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 8601 return -EOPNOTSUPP;
8602
8603 if (!rdev->ops->set_mcast_rate)
8604 return -EOPNOTSUPP;
8605
8606 memset(mcast_rate, 0, sizeof(mcast_rate));
8607
8608 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
8609 return -EINVAL;
8610
8611 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
8612 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
8613 return -EINVAL;
8614
a1056b1b 8615 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 8616
8617 return err;
8618}
8619
ad7e718c
JB		 8620static struct sk_buff *
8621__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 8622 struct wireless_dev *wdev, int approxlen,
8623 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 8624 enum nl80211_attrs attr,
8625 const struct nl80211_vendor_cmd_info *info,
8626 gfp_t gfp)
ad7e718c
JB		 8627{
8628 struct sk_buff *skb;
8629 void *hdr;
8630 struct nlattr *data;
8631
8632 skb = nlmsg_new(approxlen + 100, gfp);
8633 if (!skb)
8634 return NULL;
8635
8636 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
8637 if (!hdr) {
8638 kfree_skb(skb);
8639 return NULL;
8640 }
8641
8642 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
8643 goto nla_put_failure;
567ffc35
JB		 8644
8645 if (info) {
8646 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
8647 info->vendor_id))
8648 goto nla_put_failure;
8649 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
8650 info->subcmd))
8651 goto nla_put_failure;
8652 }
8653
6c09e791 8654 if (wdev) {
2dad624e
ND		 8655 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
8656 wdev_id(wdev), NL80211_ATTR_PAD))
6c09e791
AK		 8657 goto nla_put_failure;
8658 if (wdev->netdev &&
8659 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
8660 wdev->netdev->ifindex))
8661 goto nla_put_failure;
8662 }
8663
ad7e718c 8664 data = nla_nest_start(skb, attr);
76e1fb4b
JB		 8665 if (!data)
8666 goto nla_put_failure;
ad7e718c
JB		 8667
8668 ((void **)skb->cb)[0] = rdev;
8669 ((void **)skb->cb)[1] = hdr;
8670 ((void **)skb->cb)[2] = data;
8671
8672 return skb;
8673
8674 nla_put_failure:
8675 kfree_skb(skb);
8676 return NULL;
8677}
f4e583c8 8678
e03ad6ea 8679struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 8680 struct wireless_dev *wdev,
e03ad6ea
JB		 8681 enum nl80211_commands cmd,
8682 enum nl80211_attrs attr,
8683 int vendor_event_idx,
8684 int approxlen, gfp_t gfp)
8685{
f26cbf40 8686 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 8687 const struct nl80211_vendor_cmd_info *info;
8688
8689 switch (cmd) {
8690 case NL80211_CMD_TESTMODE:
8691 if (WARN_ON(vendor_event_idx != -1))
8692 return NULL;
8693 info = NULL;
8694 break;
8695 case NL80211_CMD_VENDOR:
8696 if (WARN_ON(vendor_event_idx < 0 ||
8697 vendor_event_idx >= wiphy->n_vendor_events))
8698 return NULL;
8699 info = &wiphy->vendor_events[vendor_event_idx];
8700 break;
8701 default:
8702 WARN_ON(1);
8703 return NULL;
8704 }
8705
6c09e791 8706 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 8707 cmd, attr, info, gfp);
8708}
8709EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8710
8711void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8712{
8713 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8714 void *hdr = ((void **)skb->cb)[1];
8715 struct nlattr *data = ((void **)skb->cb)[2];
8716 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8717
bd8c78e7
JB		 8718 /* clear CB data for netlink core to own from now on */
8719 memset(skb->cb, 0, sizeof(skb->cb));
8720
e03ad6ea
JB		 8721 nla_nest_end(skb, data);
8722 genlmsg_end(skb, hdr);
8723
8724 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8725 mcgrp = NL80211_MCGRP_VENDOR;
8726
8727 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8728 mcgrp, gfp);
8729}
8730EXPORT_SYMBOL(__cfg80211_send_event_skb);
8731
aff89a9b 8732#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 8733static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8734{
4c476991 8735 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 8736 struct wireless_dev *wdev =
8737 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 8738 int err;
8739
fc73f11f
DS		 8740 if (!rdev->ops->testmode_cmd)
8741 return -EOPNOTSUPP;
8742
8743 if (IS_ERR(wdev)) {
8744 err = PTR_ERR(wdev);
8745 if (err != -EINVAL)
8746 return err;
8747 wdev = NULL;
8748 } else if (wdev->wiphy != &rdev->wiphy) {
8749 return -EINVAL;
8750 }
8751
aff89a9b
JB		 8752 if (!info->attrs[NL80211_ATTR_TESTDATA])
8753 return -EINVAL;
8754
ad7e718c 8755 rdev->cur_cmd_info = info;
fc73f11f 8756 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 8757 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8758 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 8759 rdev->cur_cmd_info = NULL;
aff89a9b 8760
aff89a9b
JB		 8761 return err;
8762}
8763
71063f0e
WYG		 8764static int nl80211_testmode_dump(struct sk_buff *skb,
8765 struct netlink_callback *cb)
8766{
00918d33 8767 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 8768 int err;
8769 long phy_idx;
8770 void *data = NULL;
8771 int data_len = 0;
8772
5fe231e8
JB		 8773 rtnl_lock();
8774
71063f0e
WYG		 8775 if (cb->args[0]) {
8776 /*
8777 * 0 is a valid index, but not valid for args[0],
8778 * so we need to offset by 1.
8779 */
8780 phy_idx = cb->args[0] - 1;
a4956dca
LC		 8781
8782 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8783 if (!rdev) {
8784 err = -ENOENT;
8785 goto out_err;
8786 }
71063f0e 8787 } else {
c90c39da
JB		 8788 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
8789
71063f0e 8790 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
fceb6435
JB		 8791 attrbuf, nl80211_fam.maxattr,
8792 nl80211_policy, NULL);
71063f0e 8793 if (err)
5fe231e8 8794 goto out_err;
00918d33 8795
c90c39da 8796 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
2bd7e35d 8797 if (IS_ERR(rdev)) {
5fe231e8
JB		 8798 err = PTR_ERR(rdev);
8799 goto out_err;
00918d33 8800 }
2bd7e35d 8801 phy_idx = rdev->wiphy_idx;
2bd7e35d 8802
c90c39da
JB		 8803 if (attrbuf[NL80211_ATTR_TESTDATA])
8804 cb->args[1] = (long)attrbuf[NL80211_ATTR_TESTDATA];
71063f0e
WYG		 8805 }
8806
8807 if (cb->args[1]) {
8808 data = nla_data((void *)cb->args[1]);
8809 data_len = nla_len((void *)cb->args[1]);
8810 }
8811
00918d33 8812 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 8813 err = -EOPNOTSUPP;
8814 goto out_err;
8815 }
8816
8817 while (1) {
15e47304 8818 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 8819 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8820 NL80211_CMD_TESTMODE);
8821 struct nlattr *tmdata;
8822
cb35fba3
DC		 8823 if (!hdr)
8824 break;
8825
9360ffd1 8826 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 8827 genlmsg_cancel(skb, hdr);
8828 break;
8829 }
8830
8831 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8832 if (!tmdata) {
8833 genlmsg_cancel(skb, hdr);
8834 break;
8835 }
e35e4d28 8836 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 8837 nla_nest_end(skb, tmdata);
8838
8839 if (err == -ENOBUFS || err == -ENOENT) {
8840 genlmsg_cancel(skb, hdr);
8841 break;
8842 } else if (err) {
8843 genlmsg_cancel(skb, hdr);
8844 goto out_err;
8845 }
8846
8847 genlmsg_end(skb, hdr);
8848 }
8849
8850 err = skb->len;
8851 /* see above */
8852 cb->args[0] = phy_idx + 1;
8853 out_err:
5fe231e8 8854 rtnl_unlock();
71063f0e
WYG		 8855 return err;
8856}
aff89a9b
JB		 8857#endif
8858
b23aa676
SO		 8859static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8860{
4c476991
JB		 8861 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8862 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 8863 struct cfg80211_connect_params connect;
8864 struct wiphy *wiphy;
fffd0934 8865 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 8866 int err;
8867
8868 memset(&connect, 0, sizeof(connect));
8869
8870 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8871 return -EINVAL;
8872
8873 if (!info->attrs[NL80211_ATTR_SSID] ||
8874 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8875 return -EINVAL;
8876
8877 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8878 connect.auth_type =
8879 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8880 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8881 NL80211_CMD_CONNECT))
b23aa676
SO		 8882 return -EINVAL;
8883 } else
8884 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8885
8886 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8887
3a00df57
AS		 8888 if (info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS] &&
8889 !wiphy_ext_feature_isset(&rdev->wiphy,
8890 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
8891 return -EINVAL;
8892 connect.want_1x = info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS];
8893
c0692b8f 8894 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8895 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8896 if (err)
8897 return err;
b23aa676 8898
074ac8df 8899 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8900 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8901 return -EOPNOTSUPP;
b23aa676 8902
79c97e97 8903 wiphy = &rdev->wiphy;
b23aa676 8904
4486ea98
BS		 8905 connect.bg_scan_period = -1;
8906 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8907 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8908 connect.bg_scan_period =
8909 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8910 }
8911
b23aa676
SO		 8912 if (info->attrs[NL80211_ATTR_MAC])
8913 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8914 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8915 connect.bssid_hint =
8916 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8917 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8918 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8919
8920 if (info->attrs[NL80211_ATTR_IE]) {
8921 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8922 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8923 }
8924
cee00a95
JM		 8925 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8926 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8927 if (connect.mfp != NL80211_MFP_REQUIRED &&
8928 connect.mfp != NL80211_MFP_NO)
8929 return -EINVAL;
8930 } else {
8931 connect.mfp = NL80211_MFP_NO;
8932 }
8933
ba6fbacf
JM		 8934 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8935 connect.prev_bssid =
8936 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8937
b23aa676 8938 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 8939 connect.channel = nl80211_get_valid_chan(
8940 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8941 if (!connect.channel)
1df4a510
JM		 8942 return -EINVAL;
8943 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 8944 connect.channel_hint = nl80211_get_valid_chan(
8945 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8946 if (!connect.channel_hint)
4c476991 8947 return -EINVAL;
b23aa676
SO		 8948 }
8949
fffd0934
JB		 8950 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8951 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 8952 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 8953 if (IS_ERR(connkeys))
8954 return PTR_ERR(connkeys);
fffd0934
JB		 8955 }
8956
7e7c8926
BG		 8957 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8958 connect.flags |= ASSOC_REQ_DISABLE_HT;
8959
8960 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8961 memcpy(&connect.ht_capa_mask,
8962 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8963 sizeof(connect.ht_capa_mask));
8964
8965 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 8966 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 8967 kzfree(connkeys);
7e7c8926 8968 return -EINVAL;
b4e4f47e 8969 }
7e7c8926
BG		 8970 memcpy(&connect.ht_capa,
8971 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8972 sizeof(connect.ht_capa));
8973 }
8974
ee2aca34
JB		 8975 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8976 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8977
8978 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8979 memcpy(&connect.vht_capa_mask,
8980 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8981 sizeof(connect.vht_capa_mask));
8982
8983 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8984 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 8985 kzfree(connkeys);
ee2aca34
JB		 8986 return -EINVAL;
8987 }
8988 memcpy(&connect.vht_capa,
8989 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8990 sizeof(connect.vht_capa));
8991 }
8992
bab5ab7d 8993 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8994 if (!((rdev->wiphy.features &
8995 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8996 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8997 !wiphy_ext_feature_isset(&rdev->wiphy,
8998 NL80211_EXT_FEATURE_RRM)) {
707554b4 8999 kzfree(connkeys);
bab5ab7d 9000 return -EINVAL;
707554b4 9001 }
bab5ab7d
AK		 9002 connect.flags |= ASSOC_REQ_USE_RRM;
9003 }
9004
34d50519 9005 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 9006 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
34d50519
LD		 9007 kzfree(connkeys);
9008 return -EOPNOTSUPP;
9009 }
9010
38de03d2
AS		 9011 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
9012 /* bss selection makes no sense if bssid is set */
9013 if (connect.bssid) {
9014 kzfree(connkeys);
9015 return -EINVAL;
9016 }
9017
9018 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
9019 wiphy, &connect.bss_select);
9020 if (err) {
9021 kzfree(connkeys);
9022 return err;
9023 }
9024 }
9025
a3caf744
VK		 9026 if (wiphy_ext_feature_isset(&rdev->wiphy,
9027 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
9028 info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] &&
9029 info->attrs[NL80211_ATTR_FILS_ERP_REALM] &&
9030 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] &&
9031 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9032 connect.fils_erp_username =
9033 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9034 connect.fils_erp_username_len =
9035 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9036 connect.fils_erp_realm =
9037 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9038 connect.fils_erp_realm_len =
9039 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9040 connect.fils_erp_next_seq_num =
9041 nla_get_u16(
9042 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM]);
9043 connect.fils_erp_rrk =
9044 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9045 connect.fils_erp_rrk_len =
9046 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9047 } else if (info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] ||
9048 info->attrs[NL80211_ATTR_FILS_ERP_REALM] ||
9049 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] ||
9050 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9051 kzfree(connkeys);
9052 return -EINVAL;
9053 }
9054
83739b03 9055 wdev_lock(dev->ieee80211_ptr);
bd2522b1 9056
4ce2bd9c
JM		 9057 err = cfg80211_connect(rdev, dev, &connect, connkeys,
9058 connect.prev_bssid);
fffd0934 9059 if (err)
b47f610b 9060 kzfree(connkeys);
bd2522b1
AZ		 9061
9062 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
9063 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
9064 if (connect.bssid)
9065 memcpy(dev->ieee80211_ptr->disconnect_bssid,
9066 connect.bssid, ETH_ALEN);
9067 else
9068 memset(dev->ieee80211_ptr->disconnect_bssid,
9069 0, ETH_ALEN);
9070 }
9071
9072 wdev_unlock(dev->ieee80211_ptr);
9073
b23aa676
SO		 9074 return err;
9075}
9076
088e8df8 9077static int nl80211_update_connect_params(struct sk_buff *skb,
9078 struct genl_info *info)
9079{
9080 struct cfg80211_connect_params connect = {};
9081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9082 struct net_device *dev = info->user_ptr[1];
9083 struct wireless_dev *wdev = dev->ieee80211_ptr;
9084 u32 changed = 0;
9085 int ret;
9086
9087 if (!rdev->ops->update_connect_params)
9088 return -EOPNOTSUPP;
9089
9090 if (info->attrs[NL80211_ATTR_IE]) {
9091 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9092 return -EINVAL;
9093 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9094 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9095 changed |= UPDATE_ASSOC_IES;
9096 }
9097
9098 wdev_lock(dev->ieee80211_ptr);
9099 if (!wdev->current_bss)
9100 ret = -ENOLINK;
9101 else
9102 ret = rdev_update_connect_params(rdev, dev, &connect, changed);
9103 wdev_unlock(dev->ieee80211_ptr);
9104
9105 return ret;
9106}
9107
b23aa676
SO		 9108static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
9109{
4c476991
JB		 9110 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9111 struct net_device *dev = info->user_ptr[1];
b23aa676 9112 u16 reason;
83739b03 9113 int ret;
b23aa676
SO		 9114
9115 if (!info->attrs[NL80211_ATTR_REASON_CODE])
9116 reason = WLAN_REASON_DEAUTH_LEAVING;
9117 else
9118 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
9119
9120 if (reason == 0)
9121 return -EINVAL;
9122
074ac8df 9123 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9124 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9125 return -EOPNOTSUPP;
b23aa676 9126
83739b03
JB		 9127 wdev_lock(dev->ieee80211_ptr);
9128 ret = cfg80211_disconnect(rdev, dev, reason, true);
9129 wdev_unlock(dev->ieee80211_ptr);
9130 return ret;
b23aa676
SO		 9131}
9132
463d0183
JB		 9133static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
9134{
4c476991 9135 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 9136 struct net *net;
9137 int err;
463d0183 9138
4b681c82
VK		 9139 if (info->attrs[NL80211_ATTR_PID]) {
9140 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
9141
9142 net = get_net_ns_by_pid(pid);
9143 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
9144 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 9145
4b681c82
VK		 9146 net = get_net_ns_by_fd(fd);
9147 } else {
9148 return -EINVAL;
9149 }
463d0183 9150
4c476991
JB		 9151 if (IS_ERR(net))
9152 return PTR_ERR(net);
463d0183
JB		 9153
9154 err = 0;
9155
9156 /* check if anything to do */
4c476991
JB		 9157 if (!net_eq(wiphy_net(&rdev->wiphy), net))
9158 err = cfg80211_switch_netns(rdev, net);
463d0183 9159
463d0183 9160 put_net(net);
463d0183
JB		 9161 return err;
9162}
9163
67fbb16b
SO		 9164static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
9165{
4c476991 9166 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 9167 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
9168 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 9169 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 9170 struct cfg80211_pmksa pmksa;
9171
9172 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
9173
67fbb16b
SO		 9174 if (!info->attrs[NL80211_ATTR_PMKID])
9175 return -EINVAL;
9176
67fbb16b 9177 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
a3caf744
VK		 9178
9179 if (info->attrs[NL80211_ATTR_MAC]) {
9180 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
9181 } else if (info->attrs[NL80211_ATTR_SSID] &&
9182 info->attrs[NL80211_ATTR_FILS_CACHE_ID] &&
9183 (info->genlhdr->cmd == NL80211_CMD_DEL_PMKSA ||
9184 info->attrs[NL80211_ATTR_PMK])) {
9185 pmksa.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
9186 pmksa.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
9187 pmksa.cache_id =
9188 nla_data(info->attrs[NL80211_ATTR_FILS_CACHE_ID]);
9189 } else {
9190 return -EINVAL;
9191 }
9192 if (info->attrs[NL80211_ATTR_PMK]) {
9193 pmksa.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
9194 pmksa.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
9195 }
67fbb16b 9196
074ac8df 9197 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9198 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9199 return -EOPNOTSUPP;
67fbb16b
SO		 9200
9201 switch (info->genlhdr->cmd) {
9202 case NL80211_CMD_SET_PMKSA:
9203 rdev_ops = rdev->ops->set_pmksa;
9204 break;
9205 case NL80211_CMD_DEL_PMKSA:
9206 rdev_ops = rdev->ops->del_pmksa;
9207 break;
9208 default:
9209 WARN_ON(1);
9210 break;
9211 }
9212
4c476991
JB		 9213 if (!rdev_ops)
9214 return -EOPNOTSUPP;
67fbb16b 9215
4c476991 9216 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 9217}
9218
9219static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
9220{
4c476991
JB		 9221 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9222 struct net_device *dev = info->user_ptr[1];
67fbb16b 9223
074ac8df 9224 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9225 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9226 return -EOPNOTSUPP;
67fbb16b 9227
4c476991
JB		 9228 if (!rdev->ops->flush_pmksa)
9229 return -EOPNOTSUPP;
67fbb16b 9230
e35e4d28 9231 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 9232}
9233
109086ce
AN		 9234static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
9235{
9236 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9237 struct net_device *dev = info->user_ptr[1];
9238 u8 action_code, dialog_token;
df942e7b 9239 u32 peer_capability = 0;
109086ce
AN		 9240 u16 status_code;
9241 u8 *peer;
31fa97c5 9242 bool initiator;
109086ce
AN		 9243
9244 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9245 !rdev->ops->tdls_mgmt)
9246 return -EOPNOTSUPP;
9247
9248 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
9249 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
9250 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
9251 !info->attrs[NL80211_ATTR_IE] ||
9252 !info->attrs[NL80211_ATTR_MAC])
9253 return -EINVAL;
9254
9255 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9256 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
9257 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
9258 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 9259 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 9260 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
9261 peer_capability =
9262 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 9263
e35e4d28 9264 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 9265 dialog_token, status_code, peer_capability,
31fa97c5 9266 initiator,
e35e4d28
HG		 9267 nla_data(info->attrs[NL80211_ATTR_IE]),
9268 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 9269}
9270
9271static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
9272{
9273 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9274 struct net_device *dev = info->user_ptr[1];
9275 enum nl80211_tdls_operation operation;
9276 u8 *peer;
9277
9278 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9279 !rdev->ops->tdls_oper)
9280 return -EOPNOTSUPP;
9281
9282 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
9283 !info->attrs[NL80211_ATTR_MAC])
9284 return -EINVAL;
9285
9286 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
9287 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9288
e35e4d28 9289 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 9290}
9291
9588bbd5
JM		 9292static int nl80211_remain_on_channel(struct sk_buff *skb,
9293 struct genl_info *info)
9294{
4c476991 9295 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9296 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 9297 struct cfg80211_chan_def chandef;
34373d12 9298 const struct cfg80211_chan_def *compat_chandef;
9588bbd5
JM		 9299 struct sk_buff *msg;
9300 void *hdr;
9301 u64 cookie;
683b6d3b 9302 u32 duration;
9588bbd5
JM		 9303 int err;
9304
9305 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
9306 !info->attrs[NL80211_ATTR_DURATION])
9307 return -EINVAL;
9308
9309 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9310
ebf348fc
JB		 9311 if (!rdev->ops->remain_on_channel ||
9312 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
9313 return -EOPNOTSUPP;
9314
9588bbd5 9315 /*
ebf348fc
JB		 9316 * We should be on that channel for at least a minimum amount of
9317 * time (10ms) but no longer than the driver supports.
9588bbd5 9318 */
ebf348fc 9319 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 9320 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 9321 return -EINVAL;
9322
683b6d3b
JB		 9323 err = nl80211_parse_chandef(rdev, info, &chandef);
9324 if (err)
9325 return err;
9588bbd5 9326
34373d12
VT		 9327 wdev_lock(wdev);
9328 if (!cfg80211_off_channel_oper_allowed(wdev) &&
9329 !cfg80211_chandef_identical(&wdev->chandef, &chandef)) {
9330 compat_chandef = cfg80211_chandef_compatible(&wdev->chandef,
9331 &chandef);
9332 if (compat_chandef != &chandef) {
9333 wdev_unlock(wdev);
9334 return -EBUSY;
9335 }
9336 }
9337 wdev_unlock(wdev);
9338
9588bbd5 9339 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9340 if (!msg)
9341 return -ENOMEM;
9588bbd5 9342
15e47304 9343 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 9344 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 9345 if (!hdr) {
9346 err = -ENOBUFS;
9588bbd5
JM		 9347 goto free_msg;
9348 }
9349
683b6d3b
JB		 9350 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
9351 duration, &cookie);
9588bbd5
JM		 9352
9353 if (err)
9354 goto free_msg;
9355
2dad624e
ND		 9356 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9357 NL80211_ATTR_PAD))
9360ffd1 9358 goto nla_put_failure;
9588bbd5
JM		 9359
9360 genlmsg_end(msg, hdr);
4c476991
JB		 9361
9362 return genlmsg_reply(msg, info);
9588bbd5
JM		 9363
9364 nla_put_failure:
9365 err = -ENOBUFS;
9366 free_msg:
9367 nlmsg_free(msg);
9588bbd5
JM		 9368 return err;
9369}
9370
9371static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
9372 struct genl_info *info)
9373{
4c476991 9374 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9375 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 9376 u64 cookie;
9588bbd5
JM		 9377
9378 if (!info->attrs[NL80211_ATTR_COOKIE])
9379 return -EINVAL;
9380
4c476991
JB		 9381 if (!rdev->ops->cancel_remain_on_channel)
9382 return -EOPNOTSUPP;
9588bbd5 9383
9588bbd5
JM		 9384 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9385
e35e4d28 9386 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 9387}
9388
13ae75b1
JM		 9389static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
9390 struct genl_info *info)
9391{
13ae75b1 9392 struct cfg80211_bitrate_mask mask;
a7c7fbff 9393 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9394 struct net_device *dev = info->user_ptr[1];
a7c7fbff 9395 int err;
13ae75b1 9396
4c476991
JB		 9397 if (!rdev->ops->set_bitrate_mask)
9398 return -EOPNOTSUPP;
13ae75b1 9399
a7c7fbff
PK		 9400 err = nl80211_parse_tx_bitrate_mask(info, &mask);
9401 if (err)
9402 return err;
13ae75b1 9403
e35e4d28 9404 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 9405}
9406
2e161f78 9407static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9408{
4c476991 9409 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9410 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 9411 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 9412
9413 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
9414 return -EINVAL;
9415
2e161f78
JB		 9416 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
9417 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 9418
71bbc994
JB		 9419 switch (wdev->iftype) {
9420 case NL80211_IFTYPE_STATION:
9421 case NL80211_IFTYPE_ADHOC:
9422 case NL80211_IFTYPE_P2P_CLIENT:
9423 case NL80211_IFTYPE_AP:
9424 case NL80211_IFTYPE_AP_VLAN:
9425 case NL80211_IFTYPE_MESH_POINT:
9426 case NL80211_IFTYPE_P2P_GO:
98104fde 9427 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9428 break;
cb3b7d87 9429 case NL80211_IFTYPE_NAN:
71bbc994 9430 default:
4c476991 9431 return -EOPNOTSUPP;
71bbc994 9432 }
026331c4
JM		 9433
9434 /* not much point in registering if we can't reply */
4c476991
JB		 9435 if (!rdev->ops->mgmt_tx)
9436 return -EOPNOTSUPP;
026331c4 9437
15e47304 9438 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 9439 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
9440 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 9441}
9442
2e161f78 9443static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9444{
4c476991 9445 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9446 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 9447 struct cfg80211_chan_def chandef;
026331c4 9448 int err;
d64d373f 9449 void *hdr = NULL;
026331c4 9450 u64 cookie;
e247bd90 9451 struct sk_buff *msg = NULL;
b176e629
AO		 9452 struct cfg80211_mgmt_tx_params params = {
9453 .dont_wait_for_ack =
9454 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
9455 };
026331c4 9456
683b6d3b 9457 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 9458 return -EINVAL;
9459
4c476991
JB		 9460 if (!rdev->ops->mgmt_tx)
9461 return -EOPNOTSUPP;
026331c4 9462
71bbc994 9463 switch (wdev->iftype) {
ea141b75
AQ		 9464 case NL80211_IFTYPE_P2P_DEVICE:
9465 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
9466 return -EINVAL;
71bbc994
JB		 9467 case NL80211_IFTYPE_STATION:
9468 case NL80211_IFTYPE_ADHOC:
9469 case NL80211_IFTYPE_P2P_CLIENT:
9470 case NL80211_IFTYPE_AP:
9471 case NL80211_IFTYPE_AP_VLAN:
9472 case NL80211_IFTYPE_MESH_POINT:
9473 case NL80211_IFTYPE_P2P_GO:
9474 break;
cb3b7d87 9475 case NL80211_IFTYPE_NAN:
71bbc994 9476 default:
4c476991 9477 return -EOPNOTSUPP;
71bbc994 9478 }
026331c4 9479
f7ca38df 9480 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 9481 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 9482 return -EINVAL;
b176e629 9483 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 9484
9485 /*
9486 * We should wait on the channel for at least a minimum amount
9487 * of time (10ms) but no longer than the driver supports.
9488 */
b176e629
AO		 9489 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9490 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc 9491 return -EINVAL;
f7ca38df
JB		 9492 }
9493
b176e629 9494 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 9495
b176e629 9496 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 9497 return -EINVAL;
9498
b176e629 9499 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 9500
ea141b75
AQ		 9501 /* get the channel if any has been specified, otherwise pass NULL to
9502 * the driver. The latter will use the current one
9503 */
9504 chandef.chan = NULL;
9505 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9506 err = nl80211_parse_chandef(rdev, info, &chandef);
9507 if (err)
9508 return err;
9509 }
9510
b176e629 9511 if (!chandef.chan && params.offchan)
ea141b75 9512 return -EINVAL;
026331c4 9513
34373d12
VT		 9514 wdev_lock(wdev);
9515 if (params.offchan && !cfg80211_off_channel_oper_allowed(wdev)) {
9516 wdev_unlock(wdev);
9517 return -EBUSY;
9518 }
9519 wdev_unlock(wdev);
9520
34d22ce2
AO		 9521 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
9522 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
9523
9524 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
9525 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9526 int i;
9527
9528 if (len % sizeof(u16))
9529 return -EINVAL;
9530
9531 params.n_csa_offsets = len / sizeof(u16);
9532 params.csa_offsets =
9533 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9534
9535 /* check that all the offsets fit the frame */
9536 for (i = 0; i < params.n_csa_offsets; i++) {
9537 if (params.csa_offsets[i] >= params.len)
9538 return -EINVAL;
9539 }
9540 }
9541
b176e629 9542 if (!params.dont_wait_for_ack) {
e247bd90
JB		 9543 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9544 if (!msg)
9545 return -ENOMEM;
026331c4 9546
15e47304 9547 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 9548 NL80211_CMD_FRAME);
cb35fba3
DC		 9549 if (!hdr) {
9550 err = -ENOBUFS;
e247bd90
JB		 9551 goto free_msg;
9552 }
026331c4 9553 }
e247bd90 9554
b176e629
AO		 9555 params.chan = chandef.chan;
9556 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 9557 if (err)
9558 goto free_msg;
9559
e247bd90 9560 if (msg) {
2dad624e
ND		 9561 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9562 NL80211_ATTR_PAD))
9360ffd1 9563 goto nla_put_failure;
026331c4 9564
e247bd90
JB		 9565 genlmsg_end(msg, hdr);
9566 return genlmsg_reply(msg, info);
9567 }
9568
9569 return 0;
026331c4
JM		 9570
9571 nla_put_failure:
9572 err = -ENOBUFS;
9573 free_msg:
9574 nlmsg_free(msg);
026331c4
JM		 9575 return err;
9576}
9577
f7ca38df
JB		 9578static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
9579{
9580 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9581 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 9582 u64 cookie;
9583
9584 if (!info->attrs[NL80211_ATTR_COOKIE])
9585 return -EINVAL;
9586
9587 if (!rdev->ops->mgmt_tx_cancel_wait)
9588 return -EOPNOTSUPP;
9589
71bbc994
JB		 9590 switch (wdev->iftype) {
9591 case NL80211_IFTYPE_STATION:
9592 case NL80211_IFTYPE_ADHOC:
9593 case NL80211_IFTYPE_P2P_CLIENT:
9594 case NL80211_IFTYPE_AP:
9595 case NL80211_IFTYPE_AP_VLAN:
9596 case NL80211_IFTYPE_P2P_GO:
98104fde 9597 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9598 break;
cb3b7d87 9599 case NL80211_IFTYPE_NAN:
71bbc994 9600 default:
f7ca38df 9601 return -EOPNOTSUPP;
71bbc994 9602 }
f7ca38df
JB		 9603
9604 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9605
e35e4d28 9606 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 9607}
9608
ffb9eb3d
KV		 9609static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9610{
4c476991 9611 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 9612 struct wireless_dev *wdev;
4c476991 9613 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9614 u8 ps_state;
9615 bool state;
9616 int err;
9617
4c476991
JB		 9618 if (!info->attrs[NL80211_ATTR_PS_STATE])
9619 return -EINVAL;
ffb9eb3d
KV		 9620
9621 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9622
4c476991
JB		 9623 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9624 return -EINVAL;
ffb9eb3d
KV		 9625
9626 wdev = dev->ieee80211_ptr;
9627
4c476991
JB		 9628 if (!rdev->ops->set_power_mgmt)
9629 return -EOPNOTSUPP;
ffb9eb3d
KV		 9630
9631 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9632
9633 if (state == wdev->ps)
4c476991 9634 return 0;
ffb9eb3d 9635
e35e4d28 9636 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 9637 if (!err)
9638 wdev->ps = state;
ffb9eb3d
KV		 9639 return err;
9640}
9641
9642static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9643{
4c476991 9644 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 9645 enum nl80211_ps_state ps_state;
9646 struct wireless_dev *wdev;
4c476991 9647 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9648 struct sk_buff *msg;
9649 void *hdr;
9650 int err;
9651
ffb9eb3d
KV		 9652 wdev = dev->ieee80211_ptr;
9653
4c476991
JB		 9654 if (!rdev->ops->set_power_mgmt)
9655 return -EOPNOTSUPP;
ffb9eb3d
KV		 9656
9657 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9658 if (!msg)
9659 return -ENOMEM;
ffb9eb3d 9660
15e47304 9661 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 9662 NL80211_CMD_GET_POWER_SAVE);
9663 if (!hdr) {
4c476991 9664 err = -ENOBUFS;
ffb9eb3d
KV		 9665 goto free_msg;
9666 }
9667
9668 if (wdev->ps)
9669 ps_state = NL80211_PS_ENABLED;
9670 else
9671 ps_state = NL80211_PS_DISABLED;
9672
9360ffd1
DM		 9673 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9674 goto nla_put_failure;
ffb9eb3d
KV		 9675
9676 genlmsg_end(msg, hdr);
4c476991 9677 return genlmsg_reply(msg, info);
ffb9eb3d 9678
4c476991 9679 nla_put_failure:
ffb9eb3d 9680 err = -ENOBUFS;
4c476991 9681 free_msg:
ffb9eb3d 9682 nlmsg_free(msg);
ffb9eb3d
KV		 9683 return err;
9684}
9685
94e860f1
JB		 9686static const struct nla_policy
9687nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
4a4b8169 9688 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_BINARY },
d6dc1a38
JO		 9689 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9690 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 9691 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9692 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9693 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
bee427b8 9694 [NL80211_ATTR_CQM_RSSI_LEVEL] = { .type = NLA_S32 },
d6dc1a38
JO		 9695};
9696
84f10708 9697static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 9698 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 9699{
9700 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 9701 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9702 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 9703
d9d8b019 9704 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 9705 return -EINVAL;
9706
84f10708
TP		 9707 if (!rdev->ops->set_cqm_txe_config)
9708 return -EOPNOTSUPP;
9709
9710 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9711 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9712 return -EOPNOTSUPP;
9713
e35e4d28 9714 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 9715}
9716
4a4b8169
AZ		 9717static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev,
9718 struct net_device *dev)
9719{
9720 struct wireless_dev *wdev = dev->ieee80211_ptr;
9721 s32 last, low, high;
9722 u32 hyst;
9723 int i, n;
9724 int err;
9725
9726 /* RSSI reporting disabled? */
9727 if (!wdev->cqm_config)
9728 return rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0);
9729
9730 /*
9731 * Obtain current RSSI value if possible, if not and no RSSI threshold
9732 * event has been received yet, we should receive an event after a
9733 * connection is established and enough beacons received to calculate
9734 * the average.
9735 */
9736 if (!wdev->cqm_config->last_rssi_event_value && wdev->current_bss &&
9737 rdev->ops->get_station) {
9738 struct station_info sinfo;
9739 u8 *mac_addr;
9740
9741 mac_addr = wdev->current_bss->pub.bssid;
9742
9743 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
9744 if (err)
9745 return err;
9746
9747 if (sinfo.filled & BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG))
9748 wdev->cqm_config->last_rssi_event_value =
9749 (s8) sinfo.rx_beacon_signal_avg;
9750 }
9751
9752 last = wdev->cqm_config->last_rssi_event_value;
9753 hyst = wdev->cqm_config->rssi_hyst;
9754 n = wdev->cqm_config->n_rssi_thresholds;
9755
9756 for (i = 0; i < n; i++)
9757 if (last < wdev->cqm_config->rssi_thresholds[i])
9758 break;
9759
9760 low = i > 0 ?
9761 (wdev->cqm_config->rssi_thresholds[i - 1] - hyst) : S32_MIN;
9762 high = i < n ?
9763 (wdev->cqm_config->rssi_thresholds[i] + hyst - 1) : S32_MAX;
9764
9765 return rdev_set_cqm_rssi_range_config(rdev, dev, low, high);
9766}
9767
d6dc1a38 9768static int nl80211_set_cqm_rssi(struct genl_info *info,
4a4b8169
AZ		 9769 const s32 *thresholds, int n_thresholds,
9770 u32 hysteresis)
d6dc1a38 9771{
4c476991 9772 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9773 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9774 struct wireless_dev *wdev = dev->ieee80211_ptr;
4a4b8169
AZ		 9775 int i, err;
9776 s32 prev = S32_MIN;
d6dc1a38 9777
4a4b8169
AZ		 9778 /* Check all values negative and sorted */
9779 for (i = 0; i < n_thresholds; i++) {
9780 if (thresholds[i] > 0 || thresholds[i] <= prev)
9781 return -EINVAL;
d6dc1a38 9782
4a4b8169
AZ		 9783 prev = thresholds[i];
9784 }
d6dc1a38 9785
074ac8df 9786 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9787 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9788 return -EOPNOTSUPP;
d6dc1a38 9789
4a4b8169
AZ		 9790 wdev_lock(wdev);
9791 cfg80211_cqm_config_free(wdev);
9792 wdev_unlock(wdev);
9793
9794 if (n_thresholds <= 1 && rdev->ops->set_cqm_rssi_config) {
9795 if (n_thresholds == 0 || thresholds[0] == 0) /* Disabling */
9796 return rdev_set_cqm_rssi_config(rdev, dev, 0, 0);
9797
9798 return rdev_set_cqm_rssi_config(rdev, dev,
9799 thresholds[0], hysteresis);
9800 }
9801
9802 if (!wiphy_ext_feature_isset(&rdev->wiphy,
9803 NL80211_EXT_FEATURE_CQM_RSSI_LIST))
9804 return -EOPNOTSUPP;
9805
9806 if (n_thresholds == 1 && thresholds[0] == 0) /* Disabling */
9807 n_thresholds = 0;
9808
9809 wdev_lock(wdev);
9810 if (n_thresholds) {
9811 struct cfg80211_cqm_config *cqm_config;
9812
9813 cqm_config = kzalloc(sizeof(struct cfg80211_cqm_config) +
9814 n_thresholds * sizeof(s32), GFP_KERNEL);
9815 if (!cqm_config) {
9816 err = -ENOMEM;
9817 goto unlock;
9818 }
9819
9820 cqm_config->rssi_hyst = hysteresis;
9821 cqm_config->n_rssi_thresholds = n_thresholds;
9822 memcpy(cqm_config->rssi_thresholds, thresholds,
9823 n_thresholds * sizeof(s32));
9824
9825 wdev->cqm_config = cqm_config;
9826 }
9827
9828 err = cfg80211_cqm_rssi_update(rdev, dev);
9829
9830unlock:
9831 wdev_unlock(wdev);
9832
9833 return err;
d6dc1a38
JO		 9834}
9835
9836static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9837{
9838 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9839 struct nlattr *cqm;
9840 int err;
9841
9842 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 9843 if (!cqm)
9844 return -EINVAL;
d6dc1a38
JO		 9845
9846 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
fe52145f 9847 nl80211_attr_cqm_policy, info->extack);
d6dc1a38 9848 if (err)
1da5fcc8 9849 return err;
d6dc1a38
JO		 9850
9851 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9852 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
4a4b8169
AZ		 9853 const s32 *thresholds =
9854 nla_data(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9855 int len = nla_len(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
1da5fcc8 9856 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 9857
4a4b8169
AZ		 9858 if (len % 4)
9859 return -EINVAL;
9860
9861 return nl80211_set_cqm_rssi(info, thresholds, len / 4,
9862 hysteresis);
1da5fcc8
JB		 9863 }
9864
9865 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9866 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9867 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9868 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9869 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9870 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9871
9872 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9873 }
9874
9875 return -EINVAL;
d6dc1a38
JO		 9876}
9877
6e0bd6c3
RL		 9878static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9879{
9880 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9881 struct net_device *dev = info->user_ptr[1];
9882 struct ocb_setup setup = {};
9883 int err;
9884
9885 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9886 if (err)
9887 return err;
9888
9889 return cfg80211_join_ocb(rdev, dev, &setup);
9890}
9891
9892static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9893{
9894 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9895 struct net_device *dev = info->user_ptr[1];
9896
9897 return cfg80211_leave_ocb(rdev, dev);
9898}
9899
29cbe68c
JB		 9900static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9901{
9902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9903 struct net_device *dev = info->user_ptr[1];
9904 struct mesh_config cfg;
c80d545d 9905 struct mesh_setup setup;
29cbe68c
JB		 9906 int err;
9907
9908 /* start with default */
9909 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9910 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9911
24bdd9f4 9912 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9913 /* and parse parameters if given */
24bdd9f4 9914 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9915 if (err)
9916 return err;
9917 }
9918
9919 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9920 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9921 return -EINVAL;
9922
c80d545d
JC		 9923 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9924 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9925
4bb62344
CYY		 9926 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9927 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9928 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9929 return -EINVAL;
9930
9bdbf04d
MP		 9931 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9932 setup.beacon_interval =
9933 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9 9934
0c317a02
PK		 9935 err = cfg80211_validate_beacon_int(rdev,
9936 NL80211_IFTYPE_MESH_POINT,
9937 setup.beacon_interval);
12d20fc9
PK		 9938 if (err)
9939 return err;
9bdbf04d
MP		 9940 }
9941
9942 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9943 setup.dtim_period =
9944 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9945 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9946 return -EINVAL;
9947 }
9948
c80d545d
JC		 9949 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9950 /* parse additional setup parameters if given */
9951 err = nl80211_parse_mesh_setup(info, &setup);
9952 if (err)
9953 return err;
9954 }
9955
d37bb18a
TP		 9956 if (setup.user_mpm)
9957 cfg.auto_open_plinks = false;
9958
cc1d2806 9959 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 9960 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9961 if (err)
9962 return err;
cc1d2806
JB		 9963 } else {
9964 /* cfg80211_join_mesh() will sort it out */
683b6d3b 9965 setup.chandef.chan = NULL;
cc1d2806
JB		 9966 }
9967
ffb3cf30
AN		 9968 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9969 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9970 int n_rates =
9971 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9972 struct ieee80211_supported_band *sband;
9973
9974 if (!setup.chandef.chan)
9975 return -EINVAL;
9976
9977 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9978
9979 err = ieee80211_get_ratemask(sband, rates, n_rates,
9980 &setup.basic_rates);
9981 if (err)
9982 return err;
9983 }
9984
8564e382
JB		 9985 if (info->attrs[NL80211_ATTR_TX_RATES]) {
9986 err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
9987 if (err)
9988 return err;
9989
9990 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
9991 &setup.beacon_rate);
9992 if (err)
9993 return err;
9994 }
9995
d37d49c2
BB		 9996 setup.userspace_handles_dfs =
9997 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
9998
c80d545d 9999 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 10000}
10001
10002static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
10003{
10004 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10005 struct net_device *dev = info->user_ptr[1];
10006
10007 return cfg80211_leave_mesh(rdev, dev);
10008}
10009
dfb89c56 10010#ifdef CONFIG_PM
bb92d199
AK		 10011static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
10012 struct cfg80211_registered_device *rdev)
10013{
6abb9cb9 10014 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 10015 struct nlattr *nl_pats, *nl_pat;
10016 int i, pat_len;
10017
6abb9cb9 10018 if (!wowlan->n_patterns)
bb92d199
AK		 10019 return 0;
10020
10021 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
10022 if (!nl_pats)
10023 return -ENOBUFS;
10024
6abb9cb9 10025 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 10026 nl_pat = nla_nest_start(msg, i + 1);
10027 if (!nl_pat)
10028 return -ENOBUFS;
6abb9cb9 10029 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 10030 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 10031 wowlan->patterns[i].mask) ||
50ac6607
AK		 10032 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10033 wowlan->patterns[i].pattern) ||
10034 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 10035 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 10036 return -ENOBUFS;
10037 nla_nest_end(msg, nl_pat);
10038 }
10039 nla_nest_end(msg, nl_pats);
10040
10041 return 0;
10042}
10043
2a0e047e
JB		 10044static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
10045 struct cfg80211_wowlan_tcp *tcp)
10046{
10047 struct nlattr *nl_tcp;
10048
10049 if (!tcp)
10050 return 0;
10051
10052 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
10053 if (!nl_tcp)
10054 return -ENOBUFS;
10055
930345ea
JB		 10056 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
10057 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 10058 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
10059 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
10060 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
10061 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
10062 tcp->payload_len, tcp->payload) ||
10063 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
10064 tcp->data_interval) ||
10065 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
10066 tcp->wake_len, tcp->wake_data) ||
10067 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
10068 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
10069 return -ENOBUFS;
10070
10071 if (tcp->payload_seq.len &&
10072 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
10073 sizeof(tcp->payload_seq), &tcp->payload_seq))
10074 return -ENOBUFS;
10075
10076 if (tcp->payload_tok.len &&
10077 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
10078 sizeof(tcp->payload_tok) + tcp->tokens_size,
10079 &tcp->payload_tok))
10080 return -ENOBUFS;
10081
e248ad30
JB		 10082 nla_nest_end(msg, nl_tcp);
10083
2a0e047e
JB		 10084 return 0;
10085}
10086
75453ccb
LC		 10087static int nl80211_send_wowlan_nd(struct sk_buff *msg,
10088 struct cfg80211_sched_scan_request *req)
10089{
3b06d277 10090 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 10091 int i;
10092
10093 if (!req)
10094 return 0;
10095
10096 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
10097 if (!nd)
10098 return -ENOBUFS;
10099
3b06d277
AS		 10100 if (req->n_scan_plans == 1 &&
10101 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
10102 req->scan_plans[0].interval * 1000))
75453ccb
LC		 10103 return -ENOBUFS;
10104
21fea567
LC		 10105 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
10106 return -ENOBUFS;
10107
bf95ecdb 10108 if (req->relative_rssi_set) {
10109 struct nl80211_bss_select_rssi_adjust rssi_adjust;
10110
10111 if (nla_put_s8(msg, NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI,
10112 req->relative_rssi))
10113 return -ENOBUFS;
10114
10115 rssi_adjust.band = req->rssi_adjust.band;
10116 rssi_adjust.delta = req->rssi_adjust.delta;
10117 if (nla_put(msg, NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST,
10118 sizeof(rssi_adjust), &rssi_adjust))
10119 return -ENOBUFS;
10120 }
10121
75453ccb
LC		 10122 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10123 if (!freqs)
10124 return -ENOBUFS;
10125
53b18980
JB		 10126 for (i = 0; i < req->n_channels; i++) {
10127 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10128 return -ENOBUFS;
10129 }
75453ccb
LC		 10130
10131 nla_nest_end(msg, freqs);
10132
10133 if (req->n_match_sets) {
10134 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
76e1fb4b
JB		 10135 if (!matches)
10136 return -ENOBUFS;
10137
75453ccb
LC		 10138 for (i = 0; i < req->n_match_sets; i++) {
10139 match = nla_nest_start(msg, i);
76e1fb4b
JB		 10140 if (!match)
10141 return -ENOBUFS;
10142
53b18980
JB		 10143 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
10144 req->match_sets[i].ssid.ssid_len,
10145 req->match_sets[i].ssid.ssid))
10146 return -ENOBUFS;
75453ccb
LC		 10147 nla_nest_end(msg, match);
10148 }
10149 nla_nest_end(msg, matches);
10150 }
10151
3b06d277
AS		 10152 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
10153 if (!scan_plans)
10154 return -ENOBUFS;
10155
10156 for (i = 0; i < req->n_scan_plans; i++) {
10157 scan_plan = nla_nest_start(msg, i + 1);
76e1fb4b
JB		 10158 if (!scan_plan)
10159 return -ENOBUFS;
10160
3b06d277
AS		 10161 if (!scan_plan ||
10162 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
10163 req->scan_plans[i].interval) ||
10164 (req->scan_plans[i].iterations &&
10165 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
10166 req->scan_plans[i].iterations)))
10167 return -ENOBUFS;
10168 nla_nest_end(msg, scan_plan);
10169 }
10170 nla_nest_end(msg, scan_plans);
10171
75453ccb
LC		 10172 nla_nest_end(msg, nd);
10173
10174 return 0;
10175}
10176
ff1b6e69
JB		 10177static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
10178{
10179 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10180 struct sk_buff *msg;
10181 void *hdr;
2a0e047e 10182 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 10183
964dc9e2 10184 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 10185 return -EOPNOTSUPP;
10186
6abb9cb9 10187 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 10188 /* adjust size to have room for all the data */
6abb9cb9
JB		 10189 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
10190 rdev->wiphy.wowlan_config->tcp->payload_len +
10191 rdev->wiphy.wowlan_config->tcp->wake_len +
10192 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 10193 }
10194
10195 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 10196 if (!msg)
10197 return -ENOMEM;
10198
15e47304 10199 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 10200 NL80211_CMD_GET_WOWLAN);
10201 if (!hdr)
10202 goto nla_put_failure;
10203
6abb9cb9 10204 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 10205 struct nlattr *nl_wowlan;
10206
10207 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10208 if (!nl_wowlan)
10209 goto nla_put_failure;
10210
6abb9cb9 10211 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 10212 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 10213 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 10214 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 10215 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 10216 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 10217 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 10218 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 10219 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 10220 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 10221 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 10222 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 10223 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 10224 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
10225 goto nla_put_failure;
2a0e047e 10226
bb92d199
AK		 10227 if (nl80211_send_wowlan_patterns(msg, rdev))
10228 goto nla_put_failure;
2a0e047e 10229
6abb9cb9
JB		 10230 if (nl80211_send_wowlan_tcp(msg,
10231 rdev->wiphy.wowlan_config->tcp))
2a0e047e 10232 goto nla_put_failure;
75453ccb
LC		 10233
10234 if (nl80211_send_wowlan_nd(
10235 msg,
10236 rdev->wiphy.wowlan_config->nd_config))
10237 goto nla_put_failure;
2a0e047e 10238
ff1b6e69
JB		 10239 nla_nest_end(msg, nl_wowlan);
10240 }
10241
10242 genlmsg_end(msg, hdr);
10243 return genlmsg_reply(msg, info);
10244
10245nla_put_failure:
10246 nlmsg_free(msg);
10247 return -ENOBUFS;
10248}
10249
2a0e047e
JB		 10250static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
10251 struct nlattr *attr,
10252 struct cfg80211_wowlan *trig)
10253{
10254 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
10255 struct cfg80211_wowlan_tcp *cfg;
10256 struct nl80211_wowlan_tcp_data_token *tok = NULL;
10257 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
10258 u32 size;
10259 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
10260 int err, port;
10261
964dc9e2 10262 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 10263 return -EINVAL;
10264
bfe2c7b1 10265 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TCP, attr,
fceb6435 10266 nl80211_wowlan_tcp_policy, NULL);
2a0e047e
JB		 10267 if (err)
10268 return err;
10269
10270 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
10271 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
10272 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
10273 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
10274 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
10275 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
10276 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
10277 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
10278 return -EINVAL;
10279
10280 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 10281 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 10282 return -EINVAL;
10283
10284 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 10285 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 10286 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 10287 return -EINVAL;
10288
10289 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 10290 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 10291 return -EINVAL;
10292
10293 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
10294 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
10295 return -EINVAL;
10296
10297 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
10298 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10299
10300 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10301 tokens_size = tokln - sizeof(*tok);
10302
10303 if (!tok->len || tokens_size % tok->len)
10304 return -EINVAL;
964dc9e2 10305 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 10306 return -EINVAL;
964dc9e2 10307 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 10308 return -EINVAL;
964dc9e2 10309 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 10310 return -EINVAL;
964dc9e2 10311 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 10312 return -EINVAL;
10313 if (tok->offset + tok->len > data_size)
10314 return -EINVAL;
10315 }
10316
10317 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
10318 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 10319 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 10320 return -EINVAL;
10321 if (seq->len == 0 || seq->len > 4)
10322 return -EINVAL;
10323 if (seq->len + seq->offset > data_size)
10324 return -EINVAL;
10325 }
10326
10327 size = sizeof(*cfg);
10328 size += data_size;
10329 size += wake_size + wake_mask_size;
10330 size += tokens_size;
10331
10332 cfg = kzalloc(size, GFP_KERNEL);
10333 if (!cfg)
10334 return -ENOMEM;
67b61f6c
JB		 10335 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
10336 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 10337 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
10338 ETH_ALEN);
10339 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
10340 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
10341 else
10342 port = 0;
10343#ifdef CONFIG_INET
10344 /* allocate a socket and port for it and use it */
10345 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
10346 IPPROTO_TCP, &cfg->sock, 1);
10347 if (err) {
10348 kfree(cfg);
10349 return err;
10350 }
10351 if (inet_csk_get_port(cfg->sock->sk, port)) {
10352 sock_release(cfg->sock);
10353 kfree(cfg);
10354 return -EADDRINUSE;
10355 }
10356 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
10357#else
10358 if (!port) {
10359 kfree(cfg);
10360 return -EINVAL;
10361 }
10362 cfg->src_port = port;
10363#endif
10364
10365 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
10366 cfg->payload_len = data_size;
10367 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
10368 memcpy((void *)cfg->payload,
10369 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
10370 data_size);
10371 if (seq)
10372 cfg->payload_seq = *seq;
10373 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
10374 cfg->wake_len = wake_size;
10375 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
10376 memcpy((void *)cfg->wake_data,
10377 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
10378 wake_size);
10379 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
10380 data_size + wake_size;
10381 memcpy((void *)cfg->wake_mask,
10382 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
10383 wake_mask_size);
10384 if (tok) {
10385 cfg->tokens_size = tokens_size;
10386 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
10387 }
10388
10389 trig->tcp = cfg;
10390
10391 return 0;
10392}
10393
8cd4d456
LC		 10394static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
10395 const struct wiphy_wowlan_support *wowlan,
10396 struct nlattr *attr,
10397 struct cfg80211_wowlan *trig)
10398{
10399 struct nlattr **tb;
10400 int err;
10401
10402 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
10403 if (!tb)
10404 return -ENOMEM;
10405
10406 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
10407 err = -EOPNOTSUPP;
10408 goto out;
10409 }
10410
fceb6435
JB		 10411 err = nla_parse_nested(tb, NL80211_ATTR_MAX, attr, nl80211_policy,
10412 NULL);
8cd4d456
LC		 10413 if (err)
10414 goto out;
10415
aad1e812
AVS		 10416 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb,
10417 wowlan->max_nd_match_sets);
8cd4d456
LC		 10418 err = PTR_ERR_OR_ZERO(trig->nd_config);
10419 if (err)
10420 trig->nd_config = NULL;
10421
10422out:
10423 kfree(tb);
10424 return err;
10425}
10426
ff1b6e69
JB		 10427static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
10428{
10429 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10430 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 10431 struct cfg80211_wowlan new_triggers = {};
ae33bd81 10432 struct cfg80211_wowlan *ntrig;
964dc9e2 10433 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 10434 int err, i;
6abb9cb9 10435 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 10436 bool regular = false;
ff1b6e69 10437
964dc9e2 10438 if (!wowlan)
ff1b6e69
JB		 10439 return -EOPNOTSUPP;
10440
ae33bd81
JB		 10441 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
10442 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 10443 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 10444 goto set_wakeup;
10445 }
ff1b6e69 10446
bfe2c7b1
JB		 10447 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TRIG,
10448 info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS],
fe52145f 10449 nl80211_wowlan_policy, info->extack);
ff1b6e69
JB		 10450 if (err)
10451 return err;
10452
10453 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
10454 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
10455 return -EINVAL;
10456 new_triggers.any = true;
10457 }
10458
10459 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
10460 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
10461 return -EINVAL;
10462 new_triggers.disconnect = true;
98fc4386 10463 regular = true;
ff1b6e69
JB		 10464 }
10465
10466 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
10467 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
10468 return -EINVAL;
10469 new_triggers.magic_pkt = true;
98fc4386 10470 regular = true;
ff1b6e69
JB		 10471 }
10472
77dbbb13
JB		 10473 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
10474 return -EINVAL;
10475
10476 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
10477 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
10478 return -EINVAL;
10479 new_triggers.gtk_rekey_failure = true;
98fc4386 10480 regular = true;
77dbbb13
JB		 10481 }
10482
10483 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
10484 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
10485 return -EINVAL;
10486 new_triggers.eap_identity_req = true;
98fc4386 10487 regular = true;
77dbbb13
JB		 10488 }
10489
10490 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
10491 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
10492 return -EINVAL;
10493 new_triggers.four_way_handshake = true;
98fc4386 10494 regular = true;
77dbbb13
JB		 10495 }
10496
10497 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
10498 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
10499 return -EINVAL;
10500 new_triggers.rfkill_release = true;
98fc4386 10501 regular = true;
77dbbb13
JB		 10502 }
10503
ff1b6e69
JB		 10504 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
10505 struct nlattr *pat;
10506 int n_patterns = 0;
bb92d199 10507 int rem, pat_len, mask_len, pkt_offset;
50ac6607 10508 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 10509
98fc4386
JB		 10510 regular = true;
10511
ff1b6e69
JB		 10512 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10513 rem)
10514 n_patterns++;
10515 if (n_patterns > wowlan->n_patterns)
10516 return -EINVAL;
10517
10518 new_triggers.patterns = kcalloc(n_patterns,
10519 sizeof(new_triggers.patterns[0]),
10520 GFP_KERNEL);
10521 if (!new_triggers.patterns)
10522 return -ENOMEM;
10523
10524 new_triggers.n_patterns = n_patterns;
10525 i = 0;
10526
10527 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10528 rem) {
922bd80f
JB		 10529 u8 *mask_pat;
10530
bfe2c7b1 10531 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
fe52145f 10532 NULL, info->extack);
ff1b6e69 10533 err = -EINVAL;
50ac6607
AK		 10534 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10535 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 10536 goto error;
50ac6607 10537 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 10538 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 10539 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 10540 goto error;
10541 if (pat_len > wowlan->pattern_max_len ||
10542 pat_len < wowlan->pattern_min_len)
10543 goto error;
10544
50ac6607 10545 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 10546 pkt_offset = 0;
10547 else
10548 pkt_offset = nla_get_u32(
50ac6607 10549 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 10550 if (pkt_offset > wowlan->max_pkt_offset)
10551 goto error;
10552 new_triggers.patterns[i].pkt_offset = pkt_offset;
10553
922bd80f
JB		 10554 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10555 if (!mask_pat) {
ff1b6e69
JB		 10556 err = -ENOMEM;
10557 goto error;
10558 }
922bd80f
JB		 10559 new_triggers.patterns[i].mask = mask_pat;
10560 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 10561 mask_len);
922bd80f
JB		 10562 mask_pat += mask_len;
10563 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 10564 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 10565 memcpy(mask_pat,
50ac6607 10566 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 10567 pat_len);
10568 i++;
10569 }
10570 }
10571
2a0e047e 10572 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 10573 regular = true;
2a0e047e
JB		 10574 err = nl80211_parse_wowlan_tcp(
10575 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
10576 &new_triggers);
10577 if (err)
10578 goto error;
10579 }
10580
8cd4d456 10581 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 10582 regular = true;
8cd4d456
LC		 10583 err = nl80211_parse_wowlan_nd(
10584 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
10585 &new_triggers);
10586 if (err)
10587 goto error;
10588 }
10589
98fc4386
JB		 10590 /* The 'any' trigger means the device continues operating more or less
10591 * as in its normal operation mode and wakes up the host on most of the
10592 * normal interrupts (like packet RX, ...)
10593 * It therefore makes little sense to combine with the more constrained
10594 * wakeup trigger modes.
10595 */
10596 if (new_triggers.any && regular) {
10597 err = -EINVAL;
10598 goto error;
10599 }
10600
ae33bd81
JB		 10601 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
10602 if (!ntrig) {
10603 err = -ENOMEM;
10604 goto error;
ff1b6e69 10605 }
ae33bd81 10606 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 10607 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 10608
ae33bd81 10609 set_wakeup:
6abb9cb9
JB		 10610 if (rdev->ops->set_wakeup &&
10611 prev_enabled != !!rdev->wiphy.wowlan_config)
10612 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 10613
ff1b6e69
JB		 10614 return 0;
10615 error:
10616 for (i = 0; i < new_triggers.n_patterns; i++)
10617 kfree(new_triggers.patterns[i].mask);
10618 kfree(new_triggers.patterns);
2a0e047e
JB		 10619 if (new_triggers.tcp && new_triggers.tcp->sock)
10620 sock_release(new_triggers.tcp->sock);
10621 kfree(new_triggers.tcp);
e5dbe070 10622 kfree(new_triggers.nd_config);
ff1b6e69
JB		 10623 return err;
10624}
dfb89c56 10625#endif
ff1b6e69 10626
be29b99a
AK		 10627static int nl80211_send_coalesce_rules(struct sk_buff *msg,
10628 struct cfg80211_registered_device *rdev)
10629{
10630 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
10631 int i, j, pat_len;
10632 struct cfg80211_coalesce_rules *rule;
10633
10634 if (!rdev->coalesce->n_rules)
10635 return 0;
10636
10637 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
10638 if (!nl_rules)
10639 return -ENOBUFS;
10640
10641 for (i = 0; i < rdev->coalesce->n_rules; i++) {
10642 nl_rule = nla_nest_start(msg, i + 1);
10643 if (!nl_rule)
10644 return -ENOBUFS;
10645
10646 rule = &rdev->coalesce->rules[i];
10647 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
10648 rule->delay))
10649 return -ENOBUFS;
10650
10651 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
10652 rule->condition))
10653 return -ENOBUFS;
10654
10655 nl_pats = nla_nest_start(msg,
10656 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
10657 if (!nl_pats)
10658 return -ENOBUFS;
10659
10660 for (j = 0; j < rule->n_patterns; j++) {
10661 nl_pat = nla_nest_start(msg, j + 1);
10662 if (!nl_pat)
10663 return -ENOBUFS;
10664 pat_len = rule->patterns[j].pattern_len;
10665 if (nla_put(msg, NL80211_PKTPAT_MASK,
10666 DIV_ROUND_UP(pat_len, 8),
10667 rule->patterns[j].mask) ||
10668 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10669 rule->patterns[j].pattern) ||
10670 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10671 rule->patterns[j].pkt_offset))
10672 return -ENOBUFS;
10673 nla_nest_end(msg, nl_pat);
10674 }
10675 nla_nest_end(msg, nl_pats);
10676 nla_nest_end(msg, nl_rule);
10677 }
10678 nla_nest_end(msg, nl_rules);
10679
10680 return 0;
10681}
10682
10683static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
10684{
10685 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10686 struct sk_buff *msg;
10687 void *hdr;
10688
10689 if (!rdev->wiphy.coalesce)
10690 return -EOPNOTSUPP;
10691
10692 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10693 if (!msg)
10694 return -ENOMEM;
10695
10696 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10697 NL80211_CMD_GET_COALESCE);
10698 if (!hdr)
10699 goto nla_put_failure;
10700
10701 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
10702 goto nla_put_failure;
10703
10704 genlmsg_end(msg, hdr);
10705 return genlmsg_reply(msg, info);
10706
10707nla_put_failure:
10708 nlmsg_free(msg);
10709 return -ENOBUFS;
10710}
10711
10712void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
10713{
10714 struct cfg80211_coalesce *coalesce = rdev->coalesce;
10715 int i, j;
10716 struct cfg80211_coalesce_rules *rule;
10717
10718 if (!coalesce)
10719 return;
10720
10721 for (i = 0; i < coalesce->n_rules; i++) {
10722 rule = &coalesce->rules[i];
10723 for (j = 0; j < rule->n_patterns; j++)
10724 kfree(rule->patterns[j].mask);
10725 kfree(rule->patterns);
10726 }
10727 kfree(coalesce->rules);
10728 kfree(coalesce);
10729 rdev->coalesce = NULL;
10730}
10731
10732static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10733 struct nlattr *rule,
10734 struct cfg80211_coalesce_rules *new_rule)
10735{
10736 int err, i;
10737 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10738 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10739 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10740 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10741
bfe2c7b1 10742 err = nla_parse_nested(tb, NL80211_ATTR_COALESCE_RULE_MAX, rule,
fceb6435 10743 nl80211_coalesce_policy, NULL);
be29b99a
AK		 10744 if (err)
10745 return err;
10746
10747 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10748 new_rule->delay =
10749 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10750 if (new_rule->delay > coalesce->max_delay)
10751 return -EINVAL;
10752
10753 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10754 new_rule->condition =
10755 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10756 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10757 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10758 return -EINVAL;
10759
10760 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10761 return -EINVAL;
10762
10763 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10764 rem)
10765 n_patterns++;
10766 if (n_patterns > coalesce->n_patterns)
10767 return -EINVAL;
10768
10769 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10770 GFP_KERNEL);
10771 if (!new_rule->patterns)
10772 return -ENOMEM;
10773
10774 new_rule->n_patterns = n_patterns;
10775 i = 0;
10776
10777 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10778 rem) {
922bd80f
JB		 10779 u8 *mask_pat;
10780
fceb6435 10781 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat, NULL, NULL);
be29b99a
AK		 10782 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10783 !pat_tb[NL80211_PKTPAT_PATTERN])
10784 return -EINVAL;
10785 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10786 mask_len = DIV_ROUND_UP(pat_len, 8);
10787 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10788 return -EINVAL;
10789 if (pat_len > coalesce->pattern_max_len ||
10790 pat_len < coalesce->pattern_min_len)
10791 return -EINVAL;
10792
10793 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10794 pkt_offset = 0;
10795 else
10796 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10797 if (pkt_offset > coalesce->max_pkt_offset)
10798 return -EINVAL;
10799 new_rule->patterns[i].pkt_offset = pkt_offset;
10800
922bd80f
JB		 10801 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10802 if (!mask_pat)
be29b99a 10803 return -ENOMEM;
922bd80f
JB		 10804
10805 new_rule->patterns[i].mask = mask_pat;
10806 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10807 mask_len);
10808
10809 mask_pat += mask_len;
10810 new_rule->patterns[i].pattern = mask_pat;
be29b99a 10811 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 10812 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10813 pat_len);
be29b99a
AK		 10814 i++;
10815 }
10816
10817 return 0;
10818}
10819
10820static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10821{
10822 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10823 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10824 struct cfg80211_coalesce new_coalesce = {};
10825 struct cfg80211_coalesce *n_coalesce;
10826 int err, rem_rule, n_rules = 0, i, j;
10827 struct nlattr *rule;
10828 struct cfg80211_coalesce_rules *tmp_rule;
10829
10830 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10831 return -EOPNOTSUPP;
10832
10833 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10834 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 10835 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 10836 return 0;
10837 }
10838
10839 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10840 rem_rule)
10841 n_rules++;
10842 if (n_rules > coalesce->n_rules)
10843 return -EINVAL;
10844
10845 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10846 GFP_KERNEL);
10847 if (!new_coalesce.rules)
10848 return -ENOMEM;
10849
10850 new_coalesce.n_rules = n_rules;
10851 i = 0;
10852
10853 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10854 rem_rule) {
10855 err = nl80211_parse_coalesce_rule(rdev, rule,
10856 &new_coalesce.rules[i]);
10857 if (err)
10858 goto error;
10859
10860 i++;
10861 }
10862
a1056b1b 10863 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 10864 if (err)
10865 goto error;
10866
10867 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10868 if (!n_coalesce) {
10869 err = -ENOMEM;
10870 goto error;
10871 }
10872 cfg80211_rdev_free_coalesce(rdev);
10873 rdev->coalesce = n_coalesce;
10874
10875 return 0;
10876error:
10877 for (i = 0; i < new_coalesce.n_rules; i++) {
10878 tmp_rule = &new_coalesce.rules[i];
10879 for (j = 0; j < tmp_rule->n_patterns; j++)
10880 kfree(tmp_rule->patterns[j].mask);
10881 kfree(tmp_rule->patterns);
10882 }
10883 kfree(new_coalesce.rules);
10884
10885 return err;
10886}
10887
e5497d76
JB		 10888static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10889{
10890 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10891 struct net_device *dev = info->user_ptr[1];
10892 struct wireless_dev *wdev = dev->ieee80211_ptr;
10893 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10894 struct cfg80211_gtk_rekey_data rekey_data;
10895 int err;
10896
10897 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10898 return -EINVAL;
10899
bfe2c7b1
JB		 10900 err = nla_parse_nested(tb, MAX_NL80211_REKEY_DATA,
10901 info->attrs[NL80211_ATTR_REKEY_DATA],
fe52145f 10902 nl80211_rekey_policy, info->extack);
e5497d76
JB		 10903 if (err)
10904 return err;
10905
e785fa0a
VD		 10906 if (!tb[NL80211_REKEY_DATA_REPLAY_CTR] || !tb[NL80211_REKEY_DATA_KEK] ||
10907 !tb[NL80211_REKEY_DATA_KCK])
10908 return -EINVAL;
e5497d76
JB		 10909 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10910 return -ERANGE;
10911 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10912 return -ERANGE;
10913 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10914 return -ERANGE;
10915
78f686ca
JB		 10916 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10917 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10918 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 10919
10920 wdev_lock(wdev);
10921 if (!wdev->current_bss) {
10922 err = -ENOTCONN;
10923 goto out;
10924 }
10925
10926 if (!rdev->ops->set_rekey_data) {
10927 err = -EOPNOTSUPP;
10928 goto out;
10929 }
10930
e35e4d28 10931 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 10932 out:
10933 wdev_unlock(wdev);
10934 return err;
10935}
10936
28946da7
JB		 10937static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10938 struct genl_info *info)
10939{
10940 struct net_device *dev = info->user_ptr[1];
10941 struct wireless_dev *wdev = dev->ieee80211_ptr;
10942
10943 if (wdev->iftype != NL80211_IFTYPE_AP &&
10944 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10945 return -EINVAL;
10946
15e47304 10947 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 10948 return -EBUSY;
10949
15e47304 10950 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 10951 return 0;
10952}
10953
7f6cf311
JB		 10954static int nl80211_probe_client(struct sk_buff *skb,
10955 struct genl_info *info)
10956{
10957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10958 struct net_device *dev = info->user_ptr[1];
10959 struct wireless_dev *wdev = dev->ieee80211_ptr;
10960 struct sk_buff *msg;
10961 void *hdr;
10962 const u8 *addr;
10963 u64 cookie;
10964 int err;
10965
10966 if (wdev->iftype != NL80211_IFTYPE_AP &&
10967 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10968 return -EOPNOTSUPP;
10969
10970 if (!info->attrs[NL80211_ATTR_MAC])
10971 return -EINVAL;
10972
10973 if (!rdev->ops->probe_client)
10974 return -EOPNOTSUPP;
10975
10976 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10977 if (!msg)
10978 return -ENOMEM;
10979
15e47304 10980 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 10981 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 10982 if (!hdr) {
10983 err = -ENOBUFS;
7f6cf311
JB		 10984 goto free_msg;
10985 }
10986
10987 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10988
e35e4d28 10989 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 10990 if (err)
10991 goto free_msg;
10992
2dad624e
ND		 10993 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10994 NL80211_ATTR_PAD))
9360ffd1 10995 goto nla_put_failure;
7f6cf311
JB		 10996
10997 genlmsg_end(msg, hdr);
10998
10999 return genlmsg_reply(msg, info);
11000
11001 nla_put_failure:
11002 err = -ENOBUFS;
11003 free_msg:
11004 nlmsg_free(msg);
11005 return err;
11006}
11007
5e760230
JB		 11008static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
11009{
11010 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 11011 struct cfg80211_beacon_registration *reg, *nreg;
11012 int rv;
5e760230
JB		 11013
11014 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
11015 return -EOPNOTSUPP;
11016
37c73b5f
BG		 11017 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
11018 if (!nreg)
11019 return -ENOMEM;
11020
11021 /* First, check if already registered. */
11022 spin_lock_bh(&rdev->beacon_registrations_lock);
11023 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11024 if (reg->nlportid == info->snd_portid) {
11025 rv = -EALREADY;
11026 goto out_err;
11027 }
11028 }
11029 /* Add it to the list */
11030 nreg->nlportid = info->snd_portid;
11031 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 11032
37c73b5f 11033 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11034
11035 return 0;
37c73b5f
BG		 11036out_err:
11037 spin_unlock_bh(&rdev->beacon_registrations_lock);
11038 kfree(nreg);
11039 return rv;
5e760230
JB		 11040}
11041
98104fde
JB		 11042static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
11043{
11044 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11045 struct wireless_dev *wdev = info->user_ptr[1];
11046 int err;
11047
11048 if (!rdev->ops->start_p2p_device)
11049 return -EOPNOTSUPP;
11050
11051 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
11052 return -EOPNOTSUPP;
11053
73c7da3d 11054 if (wdev_running(wdev))
98104fde
JB		 11055 return 0;
11056
b6a55015
LC		 11057 if (rfkill_blocked(rdev->rfkill))
11058 return -ERFKILL;
98104fde 11059
eeb126e9 11060 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 11061 if (err)
11062 return err;
11063
73c7da3d 11064 wdev->is_running = true;
98104fde 11065 rdev->opencount++;
98104fde
JB		 11066
11067 return 0;
11068}
11069
11070static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
11071{
11072 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11073 struct wireless_dev *wdev = info->user_ptr[1];
11074
11075 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
11076 return -EOPNOTSUPP;
11077
11078 if (!rdev->ops->stop_p2p_device)
11079 return -EOPNOTSUPP;
11080
f9f47529 11081 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 11082
11083 return 0;
11084}
11085
cb3b7d87
AB		 11086static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
11087{
11088 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11089 struct wireless_dev *wdev = info->user_ptr[1];
11090 struct cfg80211_nan_conf conf = {};
11091 int err;
11092
11093 if (wdev->iftype != NL80211_IFTYPE_NAN)
11094 return -EOPNOTSUPP;
11095
eeb04a96 11096 if (wdev_running(wdev))
cb3b7d87
AB		 11097 return -EEXIST;
11098
11099 if (rfkill_blocked(rdev->rfkill))
11100 return -ERFKILL;
11101
11102 if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
11103 return -EINVAL;
11104
cb3b7d87
AB		 11105 conf.master_pref =
11106 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11107 if (!conf.master_pref)
11108 return -EINVAL;
11109
8585989d
LC		 11110 if (info->attrs[NL80211_ATTR_BANDS]) {
11111 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11112
11113 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11114 return -EOPNOTSUPP;
11115
11116 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11117 return -EINVAL;
11118
11119 conf.bands = bands;
11120 }
cb3b7d87
AB		 11121
11122 err = rdev_start_nan(rdev, wdev, &conf);
11123 if (err)
11124 return err;
11125
73c7da3d 11126 wdev->is_running = true;
cb3b7d87
AB		 11127 rdev->opencount++;
11128
11129 return 0;
11130}
11131
11132static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
11133{
11134 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11135 struct wireless_dev *wdev = info->user_ptr[1];
11136
11137 if (wdev->iftype != NL80211_IFTYPE_NAN)
11138 return -EOPNOTSUPP;
11139
11140 cfg80211_stop_nan(rdev, wdev);
11141
11142 return 0;
11143}
11144
a442b761
AB		 11145static int validate_nan_filter(struct nlattr *filter_attr)
11146{
11147 struct nlattr *attr;
11148 int len = 0, n_entries = 0, rem;
11149
11150 nla_for_each_nested(attr, filter_attr, rem) {
11151 len += nla_len(attr);
11152 n_entries++;
11153 }
11154
11155 if (len >= U8_MAX)
11156 return -EINVAL;
11157
11158 return n_entries;
11159}
11160
11161static int handle_nan_filter(struct nlattr *attr_filter,
11162 struct cfg80211_nan_func *func,
11163 bool tx)
11164{
11165 struct nlattr *attr;
11166 int n_entries, rem, i;
11167 struct cfg80211_nan_func_filter *filter;
11168
11169 n_entries = validate_nan_filter(attr_filter);
11170 if (n_entries < 0)
11171 return n_entries;
11172
11173 BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters));
11174
11175 filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL);
11176 if (!filter)
11177 return -ENOMEM;
11178
11179 i = 0;
11180 nla_for_each_nested(attr, attr_filter, rem) {
b15ca182 11181 filter[i].filter = nla_memdup(attr, GFP_KERNEL);
a442b761
AB		 11182 filter[i].len = nla_len(attr);
11183 i++;
11184 }
11185 if (tx) {
11186 func->num_tx_filters = n_entries;
11187 func->tx_filters = filter;
11188 } else {
11189 func->num_rx_filters = n_entries;
11190 func->rx_filters = filter;
11191 }
11192
11193 return 0;
11194}
11195
11196static int nl80211_nan_add_func(struct sk_buff *skb,
11197 struct genl_info *info)
11198{
11199 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11200 struct wireless_dev *wdev = info->user_ptr[1];
11201 struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr;
11202 struct cfg80211_nan_func *func;
11203 struct sk_buff *msg = NULL;
11204 void *hdr = NULL;
11205 int err = 0;
11206
11207 if (wdev->iftype != NL80211_IFTYPE_NAN)
11208 return -EOPNOTSUPP;
11209
73c7da3d 11210 if (!wdev_running(wdev))
a442b761
AB		 11211 return -ENOTCONN;
11212
11213 if (!info->attrs[NL80211_ATTR_NAN_FUNC])
11214 return -EINVAL;
11215
bfe2c7b1
JB		 11216 err = nla_parse_nested(tb, NL80211_NAN_FUNC_ATTR_MAX,
11217 info->attrs[NL80211_ATTR_NAN_FUNC],
fe52145f 11218 nl80211_nan_func_policy, info->extack);
a442b761
AB		 11219 if (err)
11220 return err;
11221
11222 func = kzalloc(sizeof(*func), GFP_KERNEL);
11223 if (!func)
11224 return -ENOMEM;
11225
11226 func->cookie = wdev->wiphy->cookie_counter++;
11227
11228 if (!tb[NL80211_NAN_FUNC_TYPE] ||
11229 nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]) > NL80211_NAN_FUNC_MAX_TYPE) {
11230 err = -EINVAL;
11231 goto out;
11232 }
11233
11234
11235 func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]);
11236
11237 if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) {
11238 err = -EINVAL;
11239 goto out;
11240 }
11241
11242 memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]),
11243 sizeof(func->service_id));
11244
11245 func->close_range =
11246 nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]);
11247
11248 if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) {
11249 func->serv_spec_info_len =
11250 nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]);
11251 func->serv_spec_info =
11252 kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]),
11253 func->serv_spec_info_len,
11254 GFP_KERNEL);
11255 if (!func->serv_spec_info) {
11256 err = -ENOMEM;
11257 goto out;
11258 }
11259 }
11260
11261 if (tb[NL80211_NAN_FUNC_TTL])
11262 func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]);
11263
11264 switch (func->type) {
11265 case NL80211_NAN_FUNC_PUBLISH:
11266 if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) {
11267 err = -EINVAL;
11268 goto out;
11269 }
11270
11271 func->publish_type =
11272 nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]);
11273 func->publish_bcast =
11274 nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]);
11275
11276 if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) &&
11277 func->publish_bcast) {
11278 err = -EINVAL;
11279 goto out;
11280 }
11281 break;
11282 case NL80211_NAN_FUNC_SUBSCRIBE:
11283 func->subscribe_active =
11284 nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]);
11285 break;
11286 case NL80211_NAN_FUNC_FOLLOW_UP:
11287 if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] ||
11288 !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]) {
11289 err = -EINVAL;
11290 goto out;
11291 }
11292
11293 func->followup_id =
11294 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]);
11295 func->followup_reqid =
11296 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]);
11297 memcpy(func->followup_dest.addr,
11298 nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]),
11299 sizeof(func->followup_dest.addr));
11300 if (func->ttl) {
11301 err = -EINVAL;
11302 goto out;
11303 }
11304 break;
11305 default:
11306 err = -EINVAL;
11307 goto out;
11308 }
11309
11310 if (tb[NL80211_NAN_FUNC_SRF]) {
11311 struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR];
11312
bfe2c7b1
JB		 11313 err = nla_parse_nested(srf_tb, NL80211_NAN_SRF_ATTR_MAX,
11314 tb[NL80211_NAN_FUNC_SRF],
fe52145f 11315 nl80211_nan_srf_policy, info->extack);
a442b761
AB		 11316 if (err)
11317 goto out;
11318
11319 func->srf_include =
11320 nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]);
11321
11322 if (srf_tb[NL80211_NAN_SRF_BF]) {
11323 if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] ||
11324 !srf_tb[NL80211_NAN_SRF_BF_IDX]) {
11325 err = -EINVAL;
11326 goto out;
11327 }
11328
11329 func->srf_bf_len =
11330 nla_len(srf_tb[NL80211_NAN_SRF_BF]);
11331 func->srf_bf =
11332 kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]),
11333 func->srf_bf_len, GFP_KERNEL);
11334 if (!func->srf_bf) {
11335 err = -ENOMEM;
11336 goto out;
11337 }
11338
11339 func->srf_bf_idx =
11340 nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]);
11341 } else {
11342 struct nlattr *attr, *mac_attr =
11343 srf_tb[NL80211_NAN_SRF_MAC_ADDRS];
11344 int n_entries, rem, i = 0;
11345
11346 if (!mac_attr) {
11347 err = -EINVAL;
11348 goto out;
11349 }
11350
11351 n_entries = validate_acl_mac_addrs(mac_attr);
11352 if (n_entries <= 0) {
11353 err = -EINVAL;
11354 goto out;
11355 }
11356
11357 func->srf_num_macs = n_entries;
11358 func->srf_macs =
11359 kzalloc(sizeof(*func->srf_macs) * n_entries,
11360 GFP_KERNEL);
11361 if (!func->srf_macs) {
11362 err = -ENOMEM;
11363 goto out;
11364 }
11365
11366 nla_for_each_nested(attr, mac_attr, rem)
11367 memcpy(func->srf_macs[i++].addr, nla_data(attr),
11368 sizeof(*func->srf_macs));
11369 }
11370 }
11371
11372 if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) {
11373 err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER],
11374 func, true);
11375 if (err)
11376 goto out;
11377 }
11378
11379 if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) {
11380 err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER],
11381 func, false);
11382 if (err)
11383 goto out;
11384 }
11385
11386 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11387 if (!msg) {
11388 err = -ENOMEM;
11389 goto out;
11390 }
11391
11392 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11393 NL80211_CMD_ADD_NAN_FUNCTION);
11394 /* This can't really happen - we just allocated 4KB */
11395 if (WARN_ON(!hdr)) {
11396 err = -ENOMEM;
11397 goto out;
11398 }
11399
11400 err = rdev_add_nan_func(rdev, wdev, func);
11401out:
11402 if (err < 0) {
11403 cfg80211_free_nan_func(func);
11404 nlmsg_free(msg);
11405 return err;
11406 }
11407
11408 /* propagate the instance id and cookie to userspace */
11409 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie,
11410 NL80211_ATTR_PAD))
11411 goto nla_put_failure;
11412
11413 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11414 if (!func_attr)
11415 goto nla_put_failure;
11416
11417 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID,
11418 func->instance_id))
11419 goto nla_put_failure;
11420
11421 nla_nest_end(msg, func_attr);
11422
11423 genlmsg_end(msg, hdr);
11424 return genlmsg_reply(msg, info);
11425
11426nla_put_failure:
11427 nlmsg_free(msg);
11428 return -ENOBUFS;
11429}
11430
11431static int nl80211_nan_del_func(struct sk_buff *skb,
11432 struct genl_info *info)
11433{
11434 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11435 struct wireless_dev *wdev = info->user_ptr[1];
11436 u64 cookie;
11437
11438 if (wdev->iftype != NL80211_IFTYPE_NAN)
11439 return -EOPNOTSUPP;
11440
73c7da3d 11441 if (!wdev_running(wdev))
a442b761
AB		 11442 return -ENOTCONN;
11443
11444 if (!info->attrs[NL80211_ATTR_COOKIE])
11445 return -EINVAL;
11446
a442b761
AB		 11447 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
11448
11449 rdev_del_nan_func(rdev, wdev, cookie);
11450
11451 return 0;
11452}
11453
a5a9dcf2
AB		 11454static int nl80211_nan_change_config(struct sk_buff *skb,
11455 struct genl_info *info)
11456{
11457 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11458 struct wireless_dev *wdev = info->user_ptr[1];
11459 struct cfg80211_nan_conf conf = {};
11460 u32 changed = 0;
11461
11462 if (wdev->iftype != NL80211_IFTYPE_NAN)
11463 return -EOPNOTSUPP;
11464
73c7da3d 11465 if (!wdev_running(wdev))
a5a9dcf2
AB		 11466 return -ENOTCONN;
11467
11468 if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) {
11469 conf.master_pref =
11470 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11471 if (conf.master_pref <= 1 || conf.master_pref == 255)
11472 return -EINVAL;
11473
11474 changed |= CFG80211_NAN_CONF_CHANGED_PREF;
11475 }
11476
8585989d
LC		 11477 if (info->attrs[NL80211_ATTR_BANDS]) {
11478 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11479
11480 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11481 return -EOPNOTSUPP;
11482
11483 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11484 return -EINVAL;
11485
11486 conf.bands = bands;
11487 changed |= CFG80211_NAN_CONF_CHANGED_BANDS;
a5a9dcf2
AB		 11488 }
11489
11490 if (!changed)
11491 return -EINVAL;
11492
11493 return rdev_nan_change_conf(rdev, wdev, &conf, changed);
11494}
11495
50bcd31d
AB		 11496void cfg80211_nan_match(struct wireless_dev *wdev,
11497 struct cfg80211_nan_match_params *match, gfp_t gfp)
11498{
11499 struct wiphy *wiphy = wdev->wiphy;
11500 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11501 struct nlattr *match_attr, *local_func_attr, *peer_func_attr;
11502 struct sk_buff *msg;
11503 void *hdr;
11504
11505 if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr))
11506 return;
11507
11508 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11509 if (!msg)
11510 return;
11511
11512 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH);
11513 if (!hdr) {
11514 nlmsg_free(msg);
11515 return;
11516 }
11517
11518 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11519 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11520 wdev->netdev->ifindex)) ||
11521 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11522 NL80211_ATTR_PAD))
11523 goto nla_put_failure;
11524
11525 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie,
11526 NL80211_ATTR_PAD) ||
11527 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr))
11528 goto nla_put_failure;
11529
11530 match_attr = nla_nest_start(msg, NL80211_ATTR_NAN_MATCH);
11531 if (!match_attr)
11532 goto nla_put_failure;
11533
11534 local_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_LOCAL);
11535 if (!local_func_attr)
11536 goto nla_put_failure;
11537
11538 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id))
11539 goto nla_put_failure;
11540
11541 nla_nest_end(msg, local_func_attr);
11542
11543 peer_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_PEER);
11544 if (!peer_func_attr)
11545 goto nla_put_failure;
11546
11547 if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) ||
11548 nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id))
11549 goto nla_put_failure;
11550
11551 if (match->info && match->info_len &&
11552 nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len,
11553 match->info))
11554 goto nla_put_failure;
11555
11556 nla_nest_end(msg, peer_func_attr);
11557 nla_nest_end(msg, match_attr);
11558 genlmsg_end(msg, hdr);
11559
11560 if (!wdev->owner_nlportid)
11561 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11562 msg, 0, NL80211_MCGRP_NAN, gfp);
11563 else
11564 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11565 wdev->owner_nlportid);
11566
11567 return;
11568
11569nla_put_failure:
11570 nlmsg_free(msg);
11571}
11572EXPORT_SYMBOL(cfg80211_nan_match);
11573
368e5a7b
AB		 11574void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
11575 u8 inst_id,
11576 enum nl80211_nan_func_term_reason reason,
11577 u64 cookie, gfp_t gfp)
11578{
11579 struct wiphy *wiphy = wdev->wiphy;
11580 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11581 struct sk_buff *msg;
11582 struct nlattr *func_attr;
11583 void *hdr;
11584
11585 if (WARN_ON(!inst_id))
11586 return;
11587
11588 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11589 if (!msg)
11590 return;
11591
11592 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION);
11593 if (!hdr) {
11594 nlmsg_free(msg);
11595 return;
11596 }
11597
11598 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11599 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11600 wdev->netdev->ifindex)) ||
11601 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11602 NL80211_ATTR_PAD))
11603 goto nla_put_failure;
11604
11605 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11606 NL80211_ATTR_PAD))
11607 goto nla_put_failure;
11608
11609 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11610 if (!func_attr)
11611 goto nla_put_failure;
11612
11613 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) ||
11614 nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason))
11615 goto nla_put_failure;
11616
11617 nla_nest_end(msg, func_attr);
11618 genlmsg_end(msg, hdr);
11619
11620 if (!wdev->owner_nlportid)
11621 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11622 msg, 0, NL80211_MCGRP_NAN, gfp);
11623 else
11624 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11625 wdev->owner_nlportid);
11626
11627 return;
11628
11629nla_put_failure:
11630 nlmsg_free(msg);
11631}
11632EXPORT_SYMBOL(cfg80211_nan_func_terminated);
11633
3713b4e3
JB		 11634static int nl80211_get_protocol_features(struct sk_buff *skb,
11635 struct genl_info *info)
11636{
11637 void *hdr;
11638 struct sk_buff *msg;
11639
11640 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11641 if (!msg)
11642 return -ENOMEM;
11643
11644 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11645 NL80211_CMD_GET_PROTOCOL_FEATURES);
11646 if (!hdr)
11647 goto nla_put_failure;
11648
11649 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
11650 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
11651 goto nla_put_failure;
11652
11653 genlmsg_end(msg, hdr);
11654 return genlmsg_reply(msg, info);
11655
11656 nla_put_failure:
11657 kfree_skb(msg);
11658 return -ENOBUFS;
11659}
11660
355199e0
JM		 11661static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
11662{
11663 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11664 struct cfg80211_update_ft_ies_params ft_params;
11665 struct net_device *dev = info->user_ptr[1];
11666
11667 if (!rdev->ops->update_ft_ies)
11668 return -EOPNOTSUPP;
11669
11670 if (!info->attrs[NL80211_ATTR_MDID] ||
11671 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
11672 return -EINVAL;
11673
11674 memset(&ft_params, 0, sizeof(ft_params));
11675 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
11676 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
11677 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
11678
11679 return rdev_update_ft_ies(rdev, dev, &ft_params);
11680}
11681
5de17984
AS		 11682static int nl80211_crit_protocol_start(struct sk_buff *skb,
11683 struct genl_info *info)
11684{
11685 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11686 struct wireless_dev *wdev = info->user_ptr[1];
11687 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
11688 u16 duration;
11689 int ret;
11690
11691 if (!rdev->ops->crit_proto_start)
11692 return -EOPNOTSUPP;
11693
11694 if (WARN_ON(!rdev->ops->crit_proto_stop))
11695 return -EINVAL;
11696
11697 if (rdev->crit_proto_nlportid)
11698 return -EBUSY;
11699
11700 /* determine protocol if provided */
11701 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
11702 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
11703
11704 if (proto >= NUM_NL80211_CRIT_PROTO)
11705 return -EINVAL;
11706
11707 /* timeout must be provided */
11708 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
11709 return -EINVAL;
11710
11711 duration =
11712 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
11713
11714 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
11715 return -ERANGE;
11716
11717 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
11718 if (!ret)
11719 rdev->crit_proto_nlportid = info->snd_portid;
11720
11721 return ret;
11722}
11723
11724static int nl80211_crit_protocol_stop(struct sk_buff *skb,
11725 struct genl_info *info)
11726{
11727 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11728 struct wireless_dev *wdev = info->user_ptr[1];
11729
11730 if (!rdev->ops->crit_proto_stop)
11731 return -EOPNOTSUPP;
11732
11733 if (rdev->crit_proto_nlportid) {
11734 rdev->crit_proto_nlportid = 0;
11735 rdev_crit_proto_stop(rdev, wdev);
11736 }
11737 return 0;
11738}
11739
ad7e718c
JB		 11740static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
11741{
11742 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11743 struct wireless_dev *wdev =
11744 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
11745 int i, err;
11746 u32 vid, subcmd;
11747
11748 if (!rdev->wiphy.vendor_commands)
11749 return -EOPNOTSUPP;
11750
11751 if (IS_ERR(wdev)) {
11752 err = PTR_ERR(wdev);
11753 if (err != -EINVAL)
11754 return err;
11755 wdev = NULL;
11756 } else if (wdev->wiphy != &rdev->wiphy) {
11757 return -EINVAL;
11758 }
11759
11760 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
11761 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
11762 return -EINVAL;
11763
11764 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
11765 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
11766 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
11767 const struct wiphy_vendor_command *vcmd;
11768 void *data = NULL;
11769 int len = 0;
11770
11771 vcmd = &rdev->wiphy.vendor_commands[i];
11772
11773 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11774 continue;
11775
11776 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11777 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11778 if (!wdev)
11779 return -EINVAL;
11780 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11781 !wdev->netdev)
11782 return -EINVAL;
11783
11784 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
73c7da3d 11785 if (!wdev_running(wdev))
ad7e718c
JB		 11786 return -ENETDOWN;
11787 }
7bdbe400
JB		 11788
11789 if (!vcmd->doit)
11790 return -EOPNOTSUPP;
ad7e718c
JB		 11791 } else {
11792 wdev = NULL;
11793 }
11794
11795 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
11796 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11797 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11798 }
11799
11800 rdev->cur_cmd_info = info;
11801 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
11802 data, len);
11803 rdev->cur_cmd_info = NULL;
11804 return err;
11805 }
11806
11807 return -EOPNOTSUPP;
11808}
11809
7bdbe400
JB		 11810static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
11811 struct netlink_callback *cb,
11812 struct cfg80211_registered_device **rdev,
11813 struct wireless_dev **wdev)
11814{
c90c39da 11815 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
7bdbe400
JB		 11816 u32 vid, subcmd;
11817 unsigned int i;
11818 int vcmd_idx = -1;
11819 int err;
11820 void *data = NULL;
11821 unsigned int data_len = 0;
11822
7bdbe400
JB		 11823 if (cb->args[0]) {
11824 /* subtract the 1 again here */
11825 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
11826 struct wireless_dev *tmp;
11827
ea90e0dc
JB		 11828 if (!wiphy)
11829 return -ENODEV;
7bdbe400
JB		 11830 *rdev = wiphy_to_rdev(wiphy);
11831 *wdev = NULL;
11832
11833 if (cb->args[1]) {
53873f13 11834 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
7bdbe400
JB		 11835 if (tmp->identifier == cb->args[1] - 1) {
11836 *wdev = tmp;
11837 break;
11838 }
11839 }
11840 }
11841
11842 /* keep rtnl locked in successful case */
11843 return 0;
11844 }
11845
fceb6435
JB		 11846 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, attrbuf,
11847 nl80211_fam.maxattr, nl80211_policy, NULL);
7bdbe400 11848 if (err)
ea90e0dc 11849 return err;
7bdbe400 11850
c90c39da 11851 if (!attrbuf[NL80211_ATTR_VENDOR_ID] ||
ea90e0dc
JB		 11852 !attrbuf[NL80211_ATTR_VENDOR_SUBCMD])
11853 return -EINVAL;
7bdbe400 11854
c90c39da 11855 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), attrbuf);
7bdbe400
JB		 11856 if (IS_ERR(*wdev))
11857 *wdev = NULL;
11858
c90c39da 11859 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
ea90e0dc
JB		 11860 if (IS_ERR(*rdev))
11861 return PTR_ERR(*rdev);
7bdbe400 11862
c90c39da
JB		 11863 vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]);
11864 subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
7bdbe400
JB		 11865
11866 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
11867 const struct wiphy_vendor_command *vcmd;
11868
11869 vcmd = &(*rdev)->wiphy.vendor_commands[i];
11870
11871 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11872 continue;
11873
ea90e0dc
JB		 11874 if (!vcmd->dumpit)
11875 return -EOPNOTSUPP;
7bdbe400
JB		 11876
11877 vcmd_idx = i;
11878 break;
11879 }
11880
ea90e0dc
JB		 11881 if (vcmd_idx < 0)
11882 return -EOPNOTSUPP;
7bdbe400 11883
c90c39da
JB		 11884 if (attrbuf[NL80211_ATTR_VENDOR_DATA]) {
11885 data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]);
11886 data_len = nla_len(attrbuf[NL80211_ATTR_VENDOR_DATA]);
7bdbe400
JB		 11887 }
11888
11889 /* 0 is the first index - add 1 to parse only once */
11890 cb->args[0] = (*rdev)->wiphy_idx + 1;
11891 /* add 1 to know if it was NULL */
11892 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
11893 cb->args[2] = vcmd_idx;
11894 cb->args[3] = (unsigned long)data;
11895 cb->args[4] = data_len;
11896
11897 /* keep rtnl locked in successful case */
11898 return 0;
7bdbe400
JB		 11899}
11900
11901static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
11902 struct netlink_callback *cb)
11903{
11904 struct cfg80211_registered_device *rdev;
11905 struct wireless_dev *wdev;
11906 unsigned int vcmd_idx;
11907 const struct wiphy_vendor_command *vcmd;
11908 void *data;
11909 int data_len;
11910 int err;
11911 struct nlattr *vendor_data;
11912
ea90e0dc 11913 rtnl_lock();
7bdbe400
JB		 11914 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
11915 if (err)
ea90e0dc 11916 goto out;
7bdbe400
JB		 11917
11918 vcmd_idx = cb->args[2];
11919 data = (void *)cb->args[3];
11920 data_len = cb->args[4];
11921 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
11922
11923 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11924 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
ea90e0dc
JB		 11925 if (!wdev) {
11926 err = -EINVAL;
11927 goto out;
11928 }
7bdbe400 11929 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
ea90e0dc
JB		 11930 !wdev->netdev) {
11931 err = -EINVAL;
11932 goto out;
11933 }
7bdbe400
JB		 11934
11935 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
ea90e0dc
JB		 11936 if (!wdev_running(wdev)) {
11937 err = -ENETDOWN;
11938 goto out;
11939 }
7bdbe400
JB		 11940 }
11941 }
11942
11943 while (1) {
11944 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
11945 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11946 NL80211_CMD_VENDOR);
11947 if (!hdr)
11948 break;
11949
11950 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 11951 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
11952 wdev_id(wdev),
11953 NL80211_ATTR_PAD))) {
7bdbe400
JB		 11954 genlmsg_cancel(skb, hdr);
11955 break;
11956 }
11957
11958 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
11959 if (!vendor_data) {
11960 genlmsg_cancel(skb, hdr);
11961 break;
11962 }
11963
11964 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
11965 (unsigned long *)&cb->args[5]);
11966 nla_nest_end(skb, vendor_data);
11967
11968 if (err == -ENOBUFS || err == -ENOENT) {
11969 genlmsg_cancel(skb, hdr);
11970 break;
11971 } else if (err) {
11972 genlmsg_cancel(skb, hdr);
11973 goto out;
11974 }
11975
11976 genlmsg_end(skb, hdr);
11977 }
11978
11979 err = skb->len;
11980 out:
11981 rtnl_unlock();
11982 return err;
11983}
11984
ad7e718c
JB		 11985struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
11986 enum nl80211_commands cmd,
11987 enum nl80211_attrs attr,
11988 int approxlen)
11989{
f26cbf40 11990 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 11991
11992 if (WARN_ON(!rdev->cur_cmd_info))
11993 return NULL;
11994
6c09e791 11995 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 11996 rdev->cur_cmd_info->snd_portid,
11997 rdev->cur_cmd_info->snd_seq,
567ffc35 11998 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 11999}
12000EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
12001
12002int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
12003{
12004 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
12005 void *hdr = ((void **)skb->cb)[1];
12006 struct nlattr *data = ((void **)skb->cb)[2];
12007
bd8c78e7
JB		 12008 /* clear CB data for netlink core to own from now on */
12009 memset(skb->cb, 0, sizeof(skb->cb));
12010
ad7e718c
JB		 12011 if (WARN_ON(!rdev->cur_cmd_info)) {
12012 kfree_skb(skb);
12013 return -EINVAL;
12014 }
12015
12016 nla_nest_end(skb, data);
12017 genlmsg_end(skb, hdr);
12018 return genlmsg_reply(skb, rdev->cur_cmd_info);
12019}
12020EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
12021
fa9ffc74
KP		 12022static int nl80211_set_qos_map(struct sk_buff *skb,
12023 struct genl_info *info)
12024{
12025 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12026 struct cfg80211_qos_map *qos_map = NULL;
12027 struct net_device *dev = info->user_ptr[1];
12028 u8 *pos, len, num_des, des_len, des;
12029 int ret;
12030
12031 if (!rdev->ops->set_qos_map)
12032 return -EOPNOTSUPP;
12033
12034 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
12035 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
12036 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
12037
12038 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
12039 len > IEEE80211_QOS_MAP_LEN_MAX)
12040 return -EINVAL;
12041
12042 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
12043 if (!qos_map)
12044 return -ENOMEM;
12045
12046 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
12047 if (num_des) {
12048 des_len = num_des *
12049 sizeof(struct cfg80211_dscp_exception);
12050 memcpy(qos_map->dscp_exception, pos, des_len);
12051 qos_map->num_des = num_des;
12052 for (des = 0; des < num_des; des++) {
12053 if (qos_map->dscp_exception[des].up > 7) {
12054 kfree(qos_map);
12055 return -EINVAL;
12056 }
12057 }
12058 pos += des_len;
12059 }
12060 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
12061 }
12062
12063 wdev_lock(dev->ieee80211_ptr);
12064 ret = nl80211_key_allowed(dev->ieee80211_ptr);
12065 if (!ret)
12066 ret = rdev_set_qos_map(rdev, dev, qos_map);
12067 wdev_unlock(dev->ieee80211_ptr);
12068
12069 kfree(qos_map);
12070 return ret;
12071}
12072
960d01ac
JB		 12073static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
12074{
12075 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12076 struct net_device *dev = info->user_ptr[1];
12077 struct wireless_dev *wdev = dev->ieee80211_ptr;
12078 const u8 *peer;
12079 u8 tsid, up;
12080 u16 admitted_time = 0;
12081 int err;
12082
723e73ac 12083 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 12084 return -EOPNOTSUPP;
12085
12086 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
12087 !info->attrs[NL80211_ATTR_USER_PRIO])
12088 return -EINVAL;
12089
12090 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
12091 if (tsid >= IEEE80211_NUM_TIDS)
12092 return -EINVAL;
12093
12094 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
12095 if (up >= IEEE80211_NUM_UPS)
12096 return -EINVAL;
12097
12098 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 12099 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 12100 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 12101 * need more attributes for that (e.g. BA session requirement);
12102 * change the WMM adminssion test above to allow both then
960d01ac
JB		 12103 */
12104 return -EINVAL;
12105 }
12106
12107 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
12108
12109 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
12110 admitted_time =
12111 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
12112 if (!admitted_time)
12113 return -EINVAL;
12114 }
12115
12116 wdev_lock(wdev);
12117 switch (wdev->iftype) {
12118 case NL80211_IFTYPE_STATION:
12119 case NL80211_IFTYPE_P2P_CLIENT:
12120 if (wdev->current_bss)
12121 break;
12122 err = -ENOTCONN;
12123 goto out;
12124 default:
12125 err = -EOPNOTSUPP;
12126 goto out;
12127 }
12128
12129 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
12130
12131 out:
12132 wdev_unlock(wdev);
12133 return err;
12134}
12135
12136static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
12137{
12138 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12139 struct net_device *dev = info->user_ptr[1];
12140 struct wireless_dev *wdev = dev->ieee80211_ptr;
12141 const u8 *peer;
12142 u8 tsid;
12143 int err;
12144
12145 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
12146 return -EINVAL;
12147
12148 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
12149 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
12150
12151 wdev_lock(wdev);
12152 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
12153 wdev_unlock(wdev);
12154
12155 return err;
12156}
12157
1057d35e
AN		 12158static int nl80211_tdls_channel_switch(struct sk_buff *skb,
12159 struct genl_info *info)
12160{
12161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12162 struct net_device *dev = info->user_ptr[1];
12163 struct wireless_dev *wdev = dev->ieee80211_ptr;
12164 struct cfg80211_chan_def chandef = {};
12165 const u8 *addr;
12166 u8 oper_class;
12167 int err;
12168
12169 if (!rdev->ops->tdls_channel_switch ||
12170 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12171 return -EOPNOTSUPP;
12172
12173 switch (dev->ieee80211_ptr->iftype) {
12174 case NL80211_IFTYPE_STATION:
12175 case NL80211_IFTYPE_P2P_CLIENT:
12176 break;
12177 default:
12178 return -EOPNOTSUPP;
12179 }
12180
12181 if (!info->attrs[NL80211_ATTR_MAC] ||
12182 !info->attrs[NL80211_ATTR_OPER_CLASS])
12183 return -EINVAL;
12184
12185 err = nl80211_parse_chandef(rdev, info, &chandef);
12186 if (err)
12187 return err;
12188
12189 /*
12190 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
12191 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
12192 * specification is not defined for them.
12193 */
57fbcce3 12194 if (chandef.chan->band == NL80211_BAND_2GHZ &&
1057d35e
AN		 12195 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
12196 chandef.width != NL80211_CHAN_WIDTH_20)
12197 return -EINVAL;
12198
12199 /* we will be active on the TDLS link */
923b352f
AN		 12200 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
12201 wdev->iftype))
1057d35e
AN		 12202 return -EINVAL;
12203
12204 /* don't allow switching to DFS channels */
12205 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
12206 return -EINVAL;
12207
12208 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12209 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
12210
12211 wdev_lock(wdev);
12212 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
12213 wdev_unlock(wdev);
12214
12215 return err;
12216}
12217
12218static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
12219 struct genl_info *info)
12220{
12221 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12222 struct net_device *dev = info->user_ptr[1];
12223 struct wireless_dev *wdev = dev->ieee80211_ptr;
12224 const u8 *addr;
12225
12226 if (!rdev->ops->tdls_channel_switch ||
12227 !rdev->ops->tdls_cancel_channel_switch ||
12228 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12229 return -EOPNOTSUPP;
12230
12231 switch (dev->ieee80211_ptr->iftype) {
12232 case NL80211_IFTYPE_STATION:
12233 case NL80211_IFTYPE_P2P_CLIENT:
12234 break;
12235 default:
12236 return -EOPNOTSUPP;
12237 }
12238
12239 if (!info->attrs[NL80211_ATTR_MAC])
12240 return -EINVAL;
12241
12242 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12243
12244 wdev_lock(wdev);
12245 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
12246 wdev_unlock(wdev);
12247
12248 return 0;
12249}
12250
ce0ce13a
MB		 12251static int nl80211_set_multicast_to_unicast(struct sk_buff *skb,
12252 struct genl_info *info)
12253{
12254 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12255 struct net_device *dev = info->user_ptr[1];
12256 struct wireless_dev *wdev = dev->ieee80211_ptr;
12257 const struct nlattr *nla;
12258 bool enabled;
12259
ce0ce13a
MB		 12260 if (!rdev->ops->set_multicast_to_unicast)
12261 return -EOPNOTSUPP;
12262
12263 if (wdev->iftype != NL80211_IFTYPE_AP &&
12264 wdev->iftype != NL80211_IFTYPE_P2P_GO)
12265 return -EOPNOTSUPP;
12266
12267 nla = info->attrs[NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED];
12268 enabled = nla_get_flag(nla);
12269
12270 return rdev_set_multicast_to_unicast(rdev, dev, enabled);
12271}
12272
3a00df57
AS		 12273static int nl80211_set_pmk(struct sk_buff *skb, struct genl_info *info)
12274{
12275 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12276 struct net_device *dev = info->user_ptr[1];
12277 struct wireless_dev *wdev = dev->ieee80211_ptr;
12278 struct cfg80211_pmk_conf pmk_conf = {};
12279 int ret;
12280
12281 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12282 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12283 return -EOPNOTSUPP;
12284
12285 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12286 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
12287 return -EOPNOTSUPP;
12288
12289 if (!info->attrs[NL80211_ATTR_MAC] || !info->attrs[NL80211_ATTR_PMK])
12290 return -EINVAL;
12291
12292 wdev_lock(wdev);
12293 if (!wdev->current_bss) {
12294 ret = -ENOTCONN;
12295 goto out;
12296 }
12297
12298 pmk_conf.aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
12299 if (memcmp(pmk_conf.aa, wdev->current_bss->pub.bssid, ETH_ALEN)) {
12300 ret = -EINVAL;
12301 goto out;
12302 }
12303
12304 pmk_conf.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
12305 pmk_conf.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
12306 if (pmk_conf.pmk_len != WLAN_PMK_LEN &&
12307 pmk_conf.pmk_len != WLAN_PMK_LEN_SUITE_B_192) {
12308 ret = -EINVAL;
12309 goto out;
12310 }
12311
12312 if (info->attrs[NL80211_ATTR_PMKR0_NAME]) {
12313 int r0_name_len = nla_len(info->attrs[NL80211_ATTR_PMKR0_NAME]);
12314
12315 if (r0_name_len != WLAN_PMK_NAME_LEN) {
12316 ret = -EINVAL;
12317 goto out;
12318 }
12319
12320 pmk_conf.pmk_r0_name =
12321 nla_data(info->attrs[NL80211_ATTR_PMKR0_NAME]);
12322 }
12323
12324 ret = rdev_set_pmk(rdev, dev, &pmk_conf);
12325out:
12326 wdev_unlock(wdev);
12327 return ret;
12328}
12329
12330static int nl80211_del_pmk(struct sk_buff *skb, struct genl_info *info)
12331{
12332 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12333 struct net_device *dev = info->user_ptr[1];
12334 struct wireless_dev *wdev = dev->ieee80211_ptr;
12335 const u8 *aa;
12336 int ret;
12337
12338 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12339 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12340 return -EOPNOTSUPP;
12341
12342 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12343 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
12344 return -EOPNOTSUPP;
12345
12346 if (!info->attrs[NL80211_ATTR_MAC])
12347 return -EINVAL;
12348
12349 wdev_lock(wdev);
12350 aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
12351 ret = rdev_del_pmk(rdev, dev, aa);
12352 wdev_unlock(wdev);
12353
12354 return ret;
12355}
12356
4c476991
JB		 12357#define NL80211_FLAG_NEED_WIPHY 0x01
12358#define NL80211_FLAG_NEED_NETDEV 0x02
12359#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 12360#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
12361#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
12362 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 12363#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 12364/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 12365#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
12366 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 12367#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 12368
f84f771d 12369static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 12370 struct genl_info *info)
12371{
12372 struct cfg80211_registered_device *rdev;
89a54e48 12373 struct wireless_dev *wdev;
4c476991 12374 struct net_device *dev;
4c476991
JB		 12375 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
12376
12377 if (rtnl)
12378 rtnl_lock();
12379
12380 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 12381 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 12382 if (IS_ERR(rdev)) {
12383 if (rtnl)
12384 rtnl_unlock();
12385 return PTR_ERR(rdev);
12386 }
12387 info->user_ptr[0] = rdev;
1bf614ef
JB		 12388 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
12389 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 12390 ASSERT_RTNL();
12391
89a54e48
JB		 12392 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
12393 info->attrs);
12394 if (IS_ERR(wdev)) {
4c476991
JB		 12395 if (rtnl)
12396 rtnl_unlock();
89a54e48 12397 return PTR_ERR(wdev);
4c476991 12398 }
89a54e48 12399
89a54e48 12400 dev = wdev->netdev;
f26cbf40 12401 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 12402
1bf614ef
JB		 12403 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
12404 if (!dev) {
1bf614ef
JB		 12405 if (rtnl)
12406 rtnl_unlock();
12407 return -EINVAL;
12408 }
12409
12410 info->user_ptr[1] = dev;
12411 } else {
12412 info->user_ptr[1] = wdev;
41265714 12413 }
1bf614ef 12414
73c7da3d
AVS		 12415 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
12416 !wdev_running(wdev)) {
12417 if (rtnl)
12418 rtnl_unlock();
12419 return -ENETDOWN;
12420 }
1bf614ef 12421
73c7da3d 12422 if (dev)
1bf614ef 12423 dev_hold(dev);
89a54e48 12424
4c476991 12425 info->user_ptr[0] = rdev;
4c476991
JB		 12426 }
12427
12428 return 0;
12429}
12430
f84f771d 12431static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 12432 struct genl_info *info)
12433{
1bf614ef
JB		 12434 if (info->user_ptr[1]) {
12435 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
12436 struct wireless_dev *wdev = info->user_ptr[1];
12437
12438 if (wdev->netdev)
12439 dev_put(wdev->netdev);
12440 } else {
12441 dev_put(info->user_ptr[1]);
12442 }
12443 }
5393b917 12444
4c476991
JB		 12445 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
12446 rtnl_unlock();
5393b917
JB		 12447
12448 /* If needed, clear the netlink message payload from the SKB
12449 * as it might contain key data that shouldn't stick around on
12450 * the heap after the SKB is freed. The netlink message header
12451 * is still needed for further processing, so leave it intact.
12452 */
12453 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
12454 struct nlmsghdr *nlh = nlmsg_hdr(skb);
12455
12456 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
12457 }
4c476991
JB		 12458}
12459
4534de83 12460static const struct genl_ops nl80211_ops[] = {
55682965
JB		 12461 {
12462 .cmd = NL80211_CMD_GET_WIPHY,
12463 .doit = nl80211_get_wiphy,
12464 .dumpit = nl80211_dump_wiphy,
86e8cf98 12465 .done = nl80211_dump_wiphy_done,
55682965
JB		 12466 .policy = nl80211_policy,
12467 /* can be retrieved by unprivileged users */
5fe231e8
JB		 12468 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12469 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12470 },
12471 {
12472 .cmd = NL80211_CMD_SET_WIPHY,
12473 .doit = nl80211_set_wiphy,
12474 .policy = nl80211_policy,
5617c6cd 12475 .flags = GENL_UNS_ADMIN_PERM,
4c476991 12476 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 12477 },
12478 {
12479 .cmd = NL80211_CMD_GET_INTERFACE,
12480 .doit = nl80211_get_interface,
12481 .dumpit = nl80211_dump_interface,
12482 .policy = nl80211_policy,
12483 /* can be retrieved by unprivileged users */
5fe231e8
JB		 12484 .internal_flags = NL80211_FLAG_NEED_WDEV |
12485 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12486 },
12487 {
12488 .cmd = NL80211_CMD_SET_INTERFACE,
12489 .doit = nl80211_set_interface,
12490 .policy = nl80211_policy,
5617c6cd 12491 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12492 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12493 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12494 },
12495 {
12496 .cmd = NL80211_CMD_NEW_INTERFACE,
12497 .doit = nl80211_new_interface,
12498 .policy = nl80211_policy,
5617c6cd 12499 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12500 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12501 NL80211_FLAG_NEED_RTNL,
55682965
JB		 12502 },
12503 {
12504 .cmd = NL80211_CMD_DEL_INTERFACE,
12505 .doit = nl80211_del_interface,
12506 .policy = nl80211_policy,
5617c6cd 12507 .flags = GENL_UNS_ADMIN_PERM,
84efbb84 12508 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 12509 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 12510 },
12511 {
12512 .cmd = NL80211_CMD_GET_KEY,
12513 .doit = nl80211_get_key,
12514 .policy = nl80211_policy,
5617c6cd 12515 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12516 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12517 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 12518 },
12519 {
12520 .cmd = NL80211_CMD_SET_KEY,
12521 .doit = nl80211_set_key,
12522 .policy = nl80211_policy,
5617c6cd 12523 .flags = GENL_UNS_ADMIN_PERM,
41265714 12524 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12525 NL80211_FLAG_NEED_RTNL |
12526 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 12527 },
12528 {
12529 .cmd = NL80211_CMD_NEW_KEY,
12530 .doit = nl80211_new_key,
12531 .policy = nl80211_policy,
5617c6cd 12532 .flags = GENL_UNS_ADMIN_PERM,
41265714 12533 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12534 NL80211_FLAG_NEED_RTNL |
12535 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 12536 },
12537 {
12538 .cmd = NL80211_CMD_DEL_KEY,
12539 .doit = nl80211_del_key,
12540 .policy = nl80211_policy,
5617c6cd 12541 .flags = GENL_UNS_ADMIN_PERM,
41265714 12542 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12543 NL80211_FLAG_NEED_RTNL,
55682965 12544 },
ed1b6cc7
JB		 12545 {
12546 .cmd = NL80211_CMD_SET_BEACON,
12547 .policy = nl80211_policy,
5617c6cd 12548 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12549 .doit = nl80211_set_beacon,
2b5f8b0b 12550 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12551 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 12552 },
12553 {
8860020e 12554 .cmd = NL80211_CMD_START_AP,
ed1b6cc7 12555 .policy = nl80211_policy,
5617c6cd 12556 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12557 .doit = nl80211_start_ap,
2b5f8b0b 12558 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12559 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 12560 },
12561 {
8860020e 12562 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7 12563 .policy = nl80211_policy,
5617c6cd 12564 .flags = GENL_UNS_ADMIN_PERM,
8860020e 12565 .doit = nl80211_stop_ap,
2b5f8b0b 12566 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12567 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 12568 },
5727ef1b
JB		 12569 {
12570 .cmd = NL80211_CMD_GET_STATION,
12571 .doit = nl80211_get_station,
2ec600d6 12572 .dumpit = nl80211_dump_station,
5727ef1b 12573 .policy = nl80211_policy,
4c476991
JB		 12574 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12575 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12576 },
12577 {
12578 .cmd = NL80211_CMD_SET_STATION,
12579 .doit = nl80211_set_station,
12580 .policy = nl80211_policy,
5617c6cd 12581 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12582 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12583 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12584 },
12585 {
12586 .cmd = NL80211_CMD_NEW_STATION,
12587 .doit = nl80211_new_station,
12588 .policy = nl80211_policy,
5617c6cd 12589 .flags = GENL_UNS_ADMIN_PERM,
41265714 12590 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12591 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 12592 },
12593 {
12594 .cmd = NL80211_CMD_DEL_STATION,
12595 .doit = nl80211_del_station,
12596 .policy = nl80211_policy,
5617c6cd 12597 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12598 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12599 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12600 },
12601 {
12602 .cmd = NL80211_CMD_GET_MPATH,
12603 .doit = nl80211_get_mpath,
12604 .dumpit = nl80211_dump_mpath,
12605 .policy = nl80211_policy,
5617c6cd 12606 .flags = GENL_UNS_ADMIN_PERM,
41265714 12607 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12608 NL80211_FLAG_NEED_RTNL,
2ec600d6 12609 },
66be7d2b
HR		 12610 {
12611 .cmd = NL80211_CMD_GET_MPP,
12612 .doit = nl80211_get_mpp,
12613 .dumpit = nl80211_dump_mpp,
12614 .policy = nl80211_policy,
5617c6cd 12615 .flags = GENL_UNS_ADMIN_PERM,
66be7d2b
HR		 12616 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12617 NL80211_FLAG_NEED_RTNL,
12618 },
2ec600d6
LCC		 12619 {
12620 .cmd = NL80211_CMD_SET_MPATH,
12621 .doit = nl80211_set_mpath,
12622 .policy = nl80211_policy,
5617c6cd 12623 .flags = GENL_UNS_ADMIN_PERM,
41265714 12624 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12625 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12626 },
12627 {
12628 .cmd = NL80211_CMD_NEW_MPATH,
12629 .doit = nl80211_new_mpath,
12630 .policy = nl80211_policy,
5617c6cd 12631 .flags = GENL_UNS_ADMIN_PERM,
41265714 12632 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12633 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 12634 },
12635 {
12636 .cmd = NL80211_CMD_DEL_MPATH,
12637 .doit = nl80211_del_mpath,
12638 .policy = nl80211_policy,
5617c6cd 12639 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12640 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12641 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 12642 },
12643 {
12644 .cmd = NL80211_CMD_SET_BSS,
12645 .doit = nl80211_set_bss,
12646 .policy = nl80211_policy,
5617c6cd 12647 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12648 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12649 NL80211_FLAG_NEED_RTNL,
b2e1b302 12650 },
f130347c
LR		 12651 {
12652 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 12653 .doit = nl80211_get_reg_do,
12654 .dumpit = nl80211_get_reg_dump,
f130347c 12655 .policy = nl80211_policy,
5fe231e8 12656 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 12657 /* can be retrieved by unprivileged users */
12658 },
b6863036 12659#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 12660 {
12661 .cmd = NL80211_CMD_SET_REG,
12662 .doit = nl80211_set_reg,
12663 .policy = nl80211_policy,
12664 .flags = GENL_ADMIN_PERM,
5fe231e8 12665 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 12666 },
b6863036 12667#endif
b2e1b302
LR		 12668 {
12669 .cmd = NL80211_CMD_REQ_SET_REG,
12670 .doit = nl80211_req_set_reg,
12671 .policy = nl80211_policy,
93da9cc1 12672 .flags = GENL_ADMIN_PERM,
12673 },
12674 {
24bdd9f4
JC		 12675 .cmd = NL80211_CMD_GET_MESH_CONFIG,
12676 .doit = nl80211_get_mesh_config,
93da9cc1 12677 .policy = nl80211_policy,
12678 /* can be retrieved by unprivileged users */
2b5f8b0b 12679 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12680 NL80211_FLAG_NEED_RTNL,
93da9cc1 12681 },
12682 {
24bdd9f4
JC		 12683 .cmd = NL80211_CMD_SET_MESH_CONFIG,
12684 .doit = nl80211_update_mesh_config,
93da9cc1 12685 .policy = nl80211_policy,
5617c6cd 12686 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c 12687 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12688 NL80211_FLAG_NEED_RTNL,
9aed3cc1 12689 },
2a519311
JB		 12690 {
12691 .cmd = NL80211_CMD_TRIGGER_SCAN,
12692 .doit = nl80211_trigger_scan,
12693 .policy = nl80211_policy,
5617c6cd 12694 .flags = GENL_UNS_ADMIN_PERM,
fd014284 12695 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12696 NL80211_FLAG_NEED_RTNL,
2a519311 12697 },
91d3ab46
VK		 12698 {
12699 .cmd = NL80211_CMD_ABORT_SCAN,
12700 .doit = nl80211_abort_scan,
12701 .policy = nl80211_policy,
5617c6cd 12702 .flags = GENL_UNS_ADMIN_PERM,
91d3ab46
VK		 12703 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12704 NL80211_FLAG_NEED_RTNL,
12705 },
2a519311
JB		 12706 {
12707 .cmd = NL80211_CMD_GET_SCAN,
12708 .policy = nl80211_policy,
12709 .dumpit = nl80211_dump_scan,
12710 },
807f8a8c
LC		 12711 {
12712 .cmd = NL80211_CMD_START_SCHED_SCAN,
12713 .doit = nl80211_start_sched_scan,
12714 .policy = nl80211_policy,
5617c6cd 12715 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 12716 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12717 NL80211_FLAG_NEED_RTNL,
12718 },
12719 {
12720 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
12721 .doit = nl80211_stop_sched_scan,
12722 .policy = nl80211_policy,
5617c6cd 12723 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 12724 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12725 NL80211_FLAG_NEED_RTNL,
12726 },
636a5d36
JM		 12727 {
12728 .cmd = NL80211_CMD_AUTHENTICATE,
12729 .doit = nl80211_authenticate,
12730 .policy = nl80211_policy,
5617c6cd 12731 .flags = GENL_UNS_ADMIN_PERM,
41265714 12732 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12733 NL80211_FLAG_NEED_RTNL |
12734 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 12735 },
12736 {
12737 .cmd = NL80211_CMD_ASSOCIATE,
12738 .doit = nl80211_associate,
12739 .policy = nl80211_policy,
5617c6cd 12740 .flags = GENL_UNS_ADMIN_PERM,
41265714 12741 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12742 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 12743 },
12744 {
12745 .cmd = NL80211_CMD_DEAUTHENTICATE,
12746 .doit = nl80211_deauthenticate,
12747 .policy = nl80211_policy,
5617c6cd 12748 .flags = GENL_UNS_ADMIN_PERM,
41265714 12749 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12750 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 12751 },
12752 {
12753 .cmd = NL80211_CMD_DISASSOCIATE,
12754 .doit = nl80211_disassociate,
12755 .policy = nl80211_policy,
5617c6cd 12756 .flags = GENL_UNS_ADMIN_PERM,
41265714 12757 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12758 NL80211_FLAG_NEED_RTNL,
636a5d36 12759 },
04a773ad
JB		 12760 {
12761 .cmd = NL80211_CMD_JOIN_IBSS,
12762 .doit = nl80211_join_ibss,
12763 .policy = nl80211_policy,
5617c6cd 12764 .flags = GENL_UNS_ADMIN_PERM,
41265714 12765 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12766 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 12767 },
12768 {
12769 .cmd = NL80211_CMD_LEAVE_IBSS,
12770 .doit = nl80211_leave_ibss,
12771 .policy = nl80211_policy,
5617c6cd 12772 .flags = GENL_UNS_ADMIN_PERM,
41265714 12773 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12774 NL80211_FLAG_NEED_RTNL,
04a773ad 12775 },
aff89a9b
JB		 12776#ifdef CONFIG_NL80211_TESTMODE
12777 {
12778 .cmd = NL80211_CMD_TESTMODE,
12779 .doit = nl80211_testmode_do,
71063f0e 12780 .dumpit = nl80211_testmode_dump,
aff89a9b 12781 .policy = nl80211_policy,
5617c6cd 12782 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12783 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12784 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 12785 },
12786#endif
b23aa676
SO		 12787 {
12788 .cmd = NL80211_CMD_CONNECT,
12789 .doit = nl80211_connect,
12790 .policy = nl80211_policy,
5617c6cd 12791 .flags = GENL_UNS_ADMIN_PERM,
41265714 12792 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12793 NL80211_FLAG_NEED_RTNL,
b23aa676 12794 },
088e8df8 12795 {
12796 .cmd = NL80211_CMD_UPDATE_CONNECT_PARAMS,
12797 .doit = nl80211_update_connect_params,
12798 .policy = nl80211_policy,
12799 .flags = GENL_ADMIN_PERM,
12800 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12801 NL80211_FLAG_NEED_RTNL,
12802 },
b23aa676
SO		 12803 {
12804 .cmd = NL80211_CMD_DISCONNECT,
12805 .doit = nl80211_disconnect,
12806 .policy = nl80211_policy,
5617c6cd 12807 .flags = GENL_UNS_ADMIN_PERM,
41265714 12808 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12809 NL80211_FLAG_NEED_RTNL,
b23aa676 12810 },
463d0183
JB		 12811 {
12812 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
12813 .doit = nl80211_wiphy_netns,
12814 .policy = nl80211_policy,
5617c6cd 12815 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12816 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12817 NL80211_FLAG_NEED_RTNL,
463d0183 12818 },
61fa713c
HS		 12819 {
12820 .cmd = NL80211_CMD_GET_SURVEY,
12821 .policy = nl80211_policy,
12822 .dumpit = nl80211_dump_survey,
12823 },
67fbb16b
SO		 12824 {
12825 .cmd = NL80211_CMD_SET_PMKSA,
12826 .doit = nl80211_setdel_pmksa,
12827 .policy = nl80211_policy,
5617c6cd 12828 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12829 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12830 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 12831 },
12832 {
12833 .cmd = NL80211_CMD_DEL_PMKSA,
12834 .doit = nl80211_setdel_pmksa,
12835 .policy = nl80211_policy,
5617c6cd 12836 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12837 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12838 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 12839 },
12840 {
12841 .cmd = NL80211_CMD_FLUSH_PMKSA,
12842 .doit = nl80211_flush_pmksa,
12843 .policy = nl80211_policy,
5617c6cd 12844 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 12845 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 12846 NL80211_FLAG_NEED_RTNL,
67fbb16b 12847 },
9588bbd5
JM		 12848 {
12849 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
12850 .doit = nl80211_remain_on_channel,
12851 .policy = nl80211_policy,
5617c6cd 12852 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12853 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12854 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 12855 },
12856 {
12857 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12858 .doit = nl80211_cancel_remain_on_channel,
12859 .policy = nl80211_policy,
5617c6cd 12860 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12861 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12862 NL80211_FLAG_NEED_RTNL,
9588bbd5 12863 },
13ae75b1
JM		 12864 {
12865 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
12866 .doit = nl80211_set_tx_bitrate_mask,
12867 .policy = nl80211_policy,
5617c6cd 12868 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12869 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12870 NL80211_FLAG_NEED_RTNL,
13ae75b1 12871 },
026331c4 12872 {
2e161f78
JB		 12873 .cmd = NL80211_CMD_REGISTER_FRAME,
12874 .doit = nl80211_register_mgmt,
026331c4 12875 .policy = nl80211_policy,
5617c6cd 12876 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12877 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 12878 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 12879 },
12880 {
2e161f78
JB		 12881 .cmd = NL80211_CMD_FRAME,
12882 .doit = nl80211_tx_mgmt,
026331c4 12883 .policy = nl80211_policy,
5617c6cd 12884 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12885 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 12886 NL80211_FLAG_NEED_RTNL,
12887 },
12888 {
12889 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
12890 .doit = nl80211_tx_mgmt_cancel_wait,
12891 .policy = nl80211_policy,
5617c6cd 12892 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 12893 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 12894 NL80211_FLAG_NEED_RTNL,
026331c4 12895 },
ffb9eb3d
KV		 12896 {
12897 .cmd = NL80211_CMD_SET_POWER_SAVE,
12898 .doit = nl80211_set_power_save,
12899 .policy = nl80211_policy,
5617c6cd 12900 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12901 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12902 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 12903 },
12904 {
12905 .cmd = NL80211_CMD_GET_POWER_SAVE,
12906 .doit = nl80211_get_power_save,
12907 .policy = nl80211_policy,
12908 /* can be retrieved by unprivileged users */
4c476991
JB		 12909 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12910 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 12911 },
d6dc1a38
JO		 12912 {
12913 .cmd = NL80211_CMD_SET_CQM,
12914 .doit = nl80211_set_cqm,
12915 .policy = nl80211_policy,
5617c6cd 12916 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12917 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12918 NL80211_FLAG_NEED_RTNL,
d6dc1a38 12919 },
f444de05
JB		 12920 {
12921 .cmd = NL80211_CMD_SET_CHANNEL,
12922 .doit = nl80211_set_channel,
12923 .policy = nl80211_policy,
5617c6cd 12924 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 12925 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12926 NL80211_FLAG_NEED_RTNL,
f444de05 12927 },
e8347eba
BJ		 12928 {
12929 .cmd = NL80211_CMD_SET_WDS_PEER,
12930 .doit = nl80211_set_wds_peer,
12931 .policy = nl80211_policy,
5617c6cd 12932 .flags = GENL_UNS_ADMIN_PERM,
43b19952
JB		 12933 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12934 NL80211_FLAG_NEED_RTNL,
e8347eba 12935 },
29cbe68c
JB		 12936 {
12937 .cmd = NL80211_CMD_JOIN_MESH,
12938 .doit = nl80211_join_mesh,
12939 .policy = nl80211_policy,
5617c6cd 12940 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 12941 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12942 NL80211_FLAG_NEED_RTNL,
12943 },
12944 {
12945 .cmd = NL80211_CMD_LEAVE_MESH,
12946 .doit = nl80211_leave_mesh,
12947 .policy = nl80211_policy,
5617c6cd 12948 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 12949 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12950 NL80211_FLAG_NEED_RTNL,
12951 },
6e0bd6c3
RL		 12952 {
12953 .cmd = NL80211_CMD_JOIN_OCB,
12954 .doit = nl80211_join_ocb,
12955 .policy = nl80211_policy,
5617c6cd 12956 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 12957 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12958 NL80211_FLAG_NEED_RTNL,
12959 },
12960 {
12961 .cmd = NL80211_CMD_LEAVE_OCB,
12962 .doit = nl80211_leave_ocb,
12963 .policy = nl80211_policy,
5617c6cd 12964 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 12965 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12966 NL80211_FLAG_NEED_RTNL,
12967 },
dfb89c56 12968#ifdef CONFIG_PM
ff1b6e69
JB		 12969 {
12970 .cmd = NL80211_CMD_GET_WOWLAN,
12971 .doit = nl80211_get_wowlan,
12972 .policy = nl80211_policy,
12973 /* can be retrieved by unprivileged users */
12974 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12975 NL80211_FLAG_NEED_RTNL,
12976 },
12977 {
12978 .cmd = NL80211_CMD_SET_WOWLAN,
12979 .doit = nl80211_set_wowlan,
12980 .policy = nl80211_policy,
5617c6cd 12981 .flags = GENL_UNS_ADMIN_PERM,
ff1b6e69
JB		 12982 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12983 NL80211_FLAG_NEED_RTNL,
12984 },
dfb89c56 12985#endif
e5497d76
JB		 12986 {
12987 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
12988 .doit = nl80211_set_rekey_data,
12989 .policy = nl80211_policy,
5617c6cd 12990 .flags = GENL_UNS_ADMIN_PERM,
e5497d76 12991 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 12992 NL80211_FLAG_NEED_RTNL |
12993 NL80211_FLAG_CLEAR_SKB,
e5497d76 12994 },
109086ce
AN		 12995 {
12996 .cmd = NL80211_CMD_TDLS_MGMT,
12997 .doit = nl80211_tdls_mgmt,
12998 .policy = nl80211_policy,
5617c6cd 12999 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 13000 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13001 NL80211_FLAG_NEED_RTNL,
13002 },
13003 {
13004 .cmd = NL80211_CMD_TDLS_OPER,
13005 .doit = nl80211_tdls_oper,
13006 .policy = nl80211_policy,
5617c6cd 13007 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 13008 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13009 NL80211_FLAG_NEED_RTNL,
13010 },
28946da7
JB		 13011 {
13012 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
13013 .doit = nl80211_register_unexpected_frame,
13014 .policy = nl80211_policy,
5617c6cd 13015 .flags = GENL_UNS_ADMIN_PERM,
28946da7
JB		 13016 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13017 NL80211_FLAG_NEED_RTNL,
13018 },
7f6cf311
JB		 13019 {
13020 .cmd = NL80211_CMD_PROBE_CLIENT,
13021 .doit = nl80211_probe_client,
13022 .policy = nl80211_policy,
5617c6cd 13023 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 13024 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 13025 NL80211_FLAG_NEED_RTNL,
13026 },
5e760230
JB		 13027 {
13028 .cmd = NL80211_CMD_REGISTER_BEACONS,
13029 .doit = nl80211_register_beacons,
13030 .policy = nl80211_policy,
5617c6cd 13031 .flags = GENL_UNS_ADMIN_PERM,
5e760230
JB		 13032 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13033 NL80211_FLAG_NEED_RTNL,
13034 },
1d9d9213
SW		 13035 {
13036 .cmd = NL80211_CMD_SET_NOACK_MAP,
13037 .doit = nl80211_set_noack_map,
13038 .policy = nl80211_policy,
5617c6cd 13039 .flags = GENL_UNS_ADMIN_PERM,
1d9d9213
SW		 13040 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13041 NL80211_FLAG_NEED_RTNL,
13042 },
98104fde
JB		 13043 {
13044 .cmd = NL80211_CMD_START_P2P_DEVICE,
13045 .doit = nl80211_start_p2p_device,
13046 .policy = nl80211_policy,
5617c6cd 13047 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 13048 .internal_flags = NL80211_FLAG_NEED_WDEV |
13049 NL80211_FLAG_NEED_RTNL,
13050 },
13051 {
13052 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
13053 .doit = nl80211_stop_p2p_device,
13054 .policy = nl80211_policy,
5617c6cd 13055 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 13056 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13057 NL80211_FLAG_NEED_RTNL,
cb3b7d87
AB		 13058 },
13059 {
13060 .cmd = NL80211_CMD_START_NAN,
13061 .doit = nl80211_start_nan,
13062 .policy = nl80211_policy,
13063 .flags = GENL_ADMIN_PERM,
13064 .internal_flags = NL80211_FLAG_NEED_WDEV |
13065 NL80211_FLAG_NEED_RTNL,
13066 },
13067 {
13068 .cmd = NL80211_CMD_STOP_NAN,
13069 .doit = nl80211_stop_nan,
13070 .policy = nl80211_policy,
13071 .flags = GENL_ADMIN_PERM,
13072 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13073 NL80211_FLAG_NEED_RTNL,
a442b761
AB		 13074 },
13075 {
13076 .cmd = NL80211_CMD_ADD_NAN_FUNCTION,
13077 .doit = nl80211_nan_add_func,
13078 .policy = nl80211_policy,
13079 .flags = GENL_ADMIN_PERM,
13080 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13081 NL80211_FLAG_NEED_RTNL,
13082 },
13083 {
13084 .cmd = NL80211_CMD_DEL_NAN_FUNCTION,
13085 .doit = nl80211_nan_del_func,
13086 .policy = nl80211_policy,
13087 .flags = GENL_ADMIN_PERM,
13088 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13089 NL80211_FLAG_NEED_RTNL,
a5a9dcf2
AB		 13090 },
13091 {
13092 .cmd = NL80211_CMD_CHANGE_NAN_CONFIG,
13093 .doit = nl80211_nan_change_config,
13094 .policy = nl80211_policy,
13095 .flags = GENL_ADMIN_PERM,
13096 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13097 NL80211_FLAG_NEED_RTNL,
98104fde 13098 },
f4e583c8
AQ		 13099 {
13100 .cmd = NL80211_CMD_SET_MCAST_RATE,
13101 .doit = nl80211_set_mcast_rate,
77765eaf 13102 .policy = nl80211_policy,
5617c6cd 13103 .flags = GENL_UNS_ADMIN_PERM,
77765eaf
VT		 13104 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13105 NL80211_FLAG_NEED_RTNL,
13106 },
13107 {
13108 .cmd = NL80211_CMD_SET_MAC_ACL,
13109 .doit = nl80211_set_mac_acl,
f4e583c8 13110 .policy = nl80211_policy,
5617c6cd 13111 .flags = GENL_UNS_ADMIN_PERM,
f4e583c8
AQ		 13112 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13113 NL80211_FLAG_NEED_RTNL,
13114 },
04f39047
SW		 13115 {
13116 .cmd = NL80211_CMD_RADAR_DETECT,
13117 .doit = nl80211_start_radar_detection,
13118 .policy = nl80211_policy,
5617c6cd 13119 .flags = GENL_UNS_ADMIN_PERM,
04f39047
SW		 13120 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13121 NL80211_FLAG_NEED_RTNL,
13122 },
3713b4e3
JB		 13123 {
13124 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
13125 .doit = nl80211_get_protocol_features,
13126 .policy = nl80211_policy,
13127 },
355199e0
JM		 13128 {
13129 .cmd = NL80211_CMD_UPDATE_FT_IES,
13130 .doit = nl80211_update_ft_ies,
13131 .policy = nl80211_policy,
5617c6cd 13132 .flags = GENL_UNS_ADMIN_PERM,
355199e0
JM		 13133 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13134 NL80211_FLAG_NEED_RTNL,
13135 },
5de17984
AS		 13136 {
13137 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
13138 .doit = nl80211_crit_protocol_start,
13139 .policy = nl80211_policy,
5617c6cd 13140 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 13141 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13142 NL80211_FLAG_NEED_RTNL,
13143 },
13144 {
13145 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
13146 .doit = nl80211_crit_protocol_stop,
13147 .policy = nl80211_policy,
5617c6cd 13148 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 13149 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13150 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 13151 },
13152 {
13153 .cmd = NL80211_CMD_GET_COALESCE,
13154 .doit = nl80211_get_coalesce,
13155 .policy = nl80211_policy,
13156 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13157 NL80211_FLAG_NEED_RTNL,
13158 },
13159 {
13160 .cmd = NL80211_CMD_SET_COALESCE,
13161 .doit = nl80211_set_coalesce,
13162 .policy = nl80211_policy,
5617c6cd 13163 .flags = GENL_UNS_ADMIN_PERM,
be29b99a
AK		 13164 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13165 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 13166 },
13167 {
13168 .cmd = NL80211_CMD_CHANNEL_SWITCH,
13169 .doit = nl80211_channel_switch,
13170 .policy = nl80211_policy,
5617c6cd 13171 .flags = GENL_UNS_ADMIN_PERM,
16ef1fe2
SW		 13172 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13173 NL80211_FLAG_NEED_RTNL,
13174 },
ad7e718c
JB		 13175 {
13176 .cmd = NL80211_CMD_VENDOR,
13177 .doit = nl80211_vendor_cmd,
7bdbe400 13178 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c 13179 .policy = nl80211_policy,
5617c6cd 13180 .flags = GENL_UNS_ADMIN_PERM,
ad7e718c
JB		 13181 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13182 NL80211_FLAG_NEED_RTNL,
13183 },
fa9ffc74
KP		 13184 {
13185 .cmd = NL80211_CMD_SET_QOS_MAP,
13186 .doit = nl80211_set_qos_map,
13187 .policy = nl80211_policy,
5617c6cd 13188 .flags = GENL_UNS_ADMIN_PERM,
fa9ffc74
KP		 13189 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13190 NL80211_FLAG_NEED_RTNL,
13191 },
960d01ac
JB		 13192 {
13193 .cmd = NL80211_CMD_ADD_TX_TS,
13194 .doit = nl80211_add_tx_ts,
13195 .policy = nl80211_policy,
5617c6cd 13196 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 13197 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13198 NL80211_FLAG_NEED_RTNL,
13199 },
13200 {
13201 .cmd = NL80211_CMD_DEL_TX_TS,
13202 .doit = nl80211_del_tx_ts,
13203 .policy = nl80211_policy,
5617c6cd 13204 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 13205 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13206 NL80211_FLAG_NEED_RTNL,
13207 },
1057d35e
AN		 13208 {
13209 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
13210 .doit = nl80211_tdls_channel_switch,
13211 .policy = nl80211_policy,
5617c6cd 13212 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 13213 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13214 NL80211_FLAG_NEED_RTNL,
13215 },
13216 {
13217 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
13218 .doit = nl80211_tdls_cancel_channel_switch,
13219 .policy = nl80211_policy,
5617c6cd 13220 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 13221 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13222 NL80211_FLAG_NEED_RTNL,
13223 },
ce0ce13a
MB		 13224 {
13225 .cmd = NL80211_CMD_SET_MULTICAST_TO_UNICAST,
13226 .doit = nl80211_set_multicast_to_unicast,
13227 .policy = nl80211_policy,
13228 .flags = GENL_UNS_ADMIN_PERM,
13229 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13230 NL80211_FLAG_NEED_RTNL,
13231 },
3a00df57
AS		 13232 {
13233 .cmd = NL80211_CMD_SET_PMK,
13234 .doit = nl80211_set_pmk,
13235 .policy = nl80211_policy,
13236 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13237 NL80211_FLAG_NEED_RTNL,
13238 },
13239 {
13240 .cmd = NL80211_CMD_DEL_PMK,
13241 .doit = nl80211_del_pmk,
13242 .policy = nl80211_policy,
13243 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13244 NL80211_FLAG_NEED_RTNL,
13245 },
13246
55682965 13247};
9588bbd5 13248
56989f6d 13249static struct genl_family nl80211_fam __ro_after_init = {
489111e5
JB		 13250 .name = NL80211_GENL_NAME, /* have users key off the name instead */
13251 .hdrsize = 0, /* no private header */
13252 .version = 1, /* no particular meaning now */
13253 .maxattr = NL80211_ATTR_MAX,
13254 .netnsok = true,
13255 .pre_doit = nl80211_pre_doit,
13256 .post_doit = nl80211_post_doit,
13257 .module = THIS_MODULE,
13258 .ops = nl80211_ops,
13259 .n_ops = ARRAY_SIZE(nl80211_ops),
13260 .mcgrps = nl80211_mcgrps,
13261 .n_mcgrps = ARRAY_SIZE(nl80211_mcgrps),
13262};
13263
55682965
JB		 13264/* notification functions */
13265
3bb20556
JB		 13266void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
13267 enum nl80211_commands cmd)
55682965
JB		 13268{
13269 struct sk_buff *msg;
86e8cf98 13270 struct nl80211_dump_wiphy_state state = {};
55682965 13271
3bb20556
JB		 13272 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
13273 cmd != NL80211_CMD_DEL_WIPHY);
13274
fd2120ca 13275 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 13276 if (!msg)
13277 return;
13278
3bb20556 13279 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 13280 nlmsg_free(msg);
13281 return;
13282 }
13283
68eb5503 13284 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13285 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 13286}
13287
896ff063
DK		 13288void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
13289 struct wireless_dev *wdev,
13290 enum nl80211_commands cmd)
13291{
13292 struct sk_buff *msg;
13293
13294 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
13295 cmd != NL80211_CMD_DEL_INTERFACE);
13296
13297 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13298 if (!msg)
13299 return;
13300
13301 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
13302 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
13303 nlmsg_free(msg);
13304 return;
13305 }
13306
13307 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13308 NL80211_MCGRP_CONFIG, GFP_KERNEL);
13309}
13310
362a415d
JB		 13311static int nl80211_add_scan_req(struct sk_buff *msg,
13312 struct cfg80211_registered_device *rdev)
13313{
13314 struct cfg80211_scan_request *req = rdev->scan_req;
13315 struct nlattr *nest;
13316 int i;
13317
13318 if (WARN_ON(!req))
13319 return 0;
13320
13321 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
13322 if (!nest)
13323 goto nla_put_failure;
9360ffd1
DM		 13324 for (i = 0; i < req->n_ssids; i++) {
13325 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
13326 goto nla_put_failure;
13327 }
362a415d
JB		 13328 nla_nest_end(msg, nest);
13329
13330 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
13331 if (!nest)
13332 goto nla_put_failure;
9360ffd1
DM		 13333 for (i = 0; i < req->n_channels; i++) {
13334 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
13335 goto nla_put_failure;
13336 }
362a415d
JB		 13337 nla_nest_end(msg, nest);
13338
9360ffd1
DM		 13339 if (req->ie &&
13340 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
13341 goto nla_put_failure;
362a415d 13342
ae917c9f
JB		 13343 if (req->flags &&
13344 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
13345 goto nla_put_failure;
ed473771 13346
1d76250b
AS		 13347 if (req->info.scan_start_tsf &&
13348 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
13349 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
13350 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
13351 req->info.tsf_bssid)))
13352 goto nla_put_failure;
13353
362a415d
JB		 13354 return 0;
13355 nla_put_failure:
13356 return -ENOBUFS;
13357}
13358
505a2e88 13359static int nl80211_prep_scan_msg(struct sk_buff *msg,
a538e2d5 13360 struct cfg80211_registered_device *rdev,
fd014284 13361 struct wireless_dev *wdev,
15e47304 13362 u32 portid, u32 seq, int flags,
a538e2d5 13363 u32 cmd)
2a519311
JB		 13364{
13365 void *hdr;
13366
15e47304 13367 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 13368 if (!hdr)
13369 return -1;
13370
9360ffd1 13371 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 13372 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13373 wdev->netdev->ifindex)) ||
2dad624e
ND		 13374 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13375 NL80211_ATTR_PAD))
9360ffd1 13376 goto nla_put_failure;
2a519311 13377
362a415d
JB		 13378 /* ignore errors and send incomplete event anyway */
13379 nl80211_add_scan_req(msg, rdev);
2a519311 13380
053c095a
JB		 13381 genlmsg_end(msg, hdr);
13382 return 0;
2a519311
JB		 13383
13384 nla_put_failure:
13385 genlmsg_cancel(msg, hdr);
13386 return -EMSGSIZE;
13387}
13388
807f8a8c 13389static int
505a2e88 13390nl80211_prep_sched_scan_msg(struct sk_buff *msg,
96b08fd6 13391 struct cfg80211_sched_scan_request *req, u32 cmd)
807f8a8c
LC		 13392{
13393 void *hdr;
13394
96b08fd6 13395 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
807f8a8c
LC		 13396 if (!hdr)
13397 return -1;
13398
96b08fd6
AVS		 13399 if (nla_put_u32(msg, NL80211_ATTR_WIPHY,
13400 wiphy_to_rdev(req->wiphy)->wiphy_idx) ||
13401 nla_put_u32(msg, NL80211_ATTR_IFINDEX, req->dev->ifindex) ||
13402 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, req->reqid,
13403 NL80211_ATTR_PAD))
9360ffd1 13404 goto nla_put_failure;
807f8a8c 13405
053c095a
JB		 13406 genlmsg_end(msg, hdr);
13407 return 0;
807f8a8c
LC		 13408
13409 nla_put_failure:
13410 genlmsg_cancel(msg, hdr);
13411 return -EMSGSIZE;
13412}
13413
a538e2d5 13414void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 13415 struct wireless_dev *wdev)
a538e2d5
JB		 13416{
13417 struct sk_buff *msg;
13418
58050fce 13419 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 13420 if (!msg)
13421 return;
13422
505a2e88 13423 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 13424 NL80211_CMD_TRIGGER_SCAN) < 0) {
13425 nlmsg_free(msg);
13426 return;
13427 }
13428
68eb5503 13429 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13430 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 13431}
13432
f9d15d16
JB		 13433struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
13434 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 13435{
13436 struct sk_buff *msg;
13437
fd2120ca 13438 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 13439 if (!msg)
f9d15d16 13440 return NULL;
2a519311 13441
505a2e88 13442 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 13443 aborted ? NL80211_CMD_SCAN_ABORTED :
13444 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 13445 nlmsg_free(msg);
f9d15d16 13446 return NULL;
2a519311
JB		 13447 }
13448
f9d15d16 13449 return msg;
2a519311
JB		 13450}
13451
505a2e88
AVS		 13452/* send message created by nl80211_build_scan_msg() */
13453void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev,
13454 struct sk_buff *msg)
807f8a8c 13455{
807f8a8c
LC		 13456 if (!msg)
13457 return;
13458
68eb5503 13459 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13460 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 13461}
13462
96b08fd6 13463void nl80211_send_sched_scan(struct cfg80211_sched_scan_request *req, u32 cmd)
807f8a8c
LC		 13464{
13465 struct sk_buff *msg;
13466
58050fce 13467 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 13468 if (!msg)
13469 return;
13470
96b08fd6 13471 if (nl80211_prep_sched_scan_msg(msg, req, cmd) < 0) {
807f8a8c
LC		 13472 nlmsg_free(msg);
13473 return;
13474 }
13475
96b08fd6 13476 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(req->wiphy), msg, 0,
2a94fe48 13477 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 13478}
13479
b0d7aa59
JD		 13480static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
13481 struct regulatory_request *request)
73d54c9e 13482{
73d54c9e 13483 /* Userspace can always count this one always being set */
9360ffd1
DM		 13484 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
13485 goto nla_put_failure;
13486
13487 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
13488 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13489 NL80211_REGDOM_TYPE_WORLD))
13490 goto nla_put_failure;
13491 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
13492 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13493 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
13494 goto nla_put_failure;
13495 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
13496 request->intersect) {
13497 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13498 NL80211_REGDOM_TYPE_INTERSECTION))
13499 goto nla_put_failure;
13500 } else {
13501 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13502 NL80211_REGDOM_TYPE_COUNTRY) ||
13503 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
13504 request->alpha2))
13505 goto nla_put_failure;
13506 }
13507
ad30ca2c
AN		 13508 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
13509 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
13510
13511 if (wiphy &&
13512 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
13513 goto nla_put_failure;
1bdd716c
AN		 13514
13515 if (wiphy &&
13516 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
13517 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
13518 goto nla_put_failure;
ad30ca2c 13519 }
73d54c9e 13520
b0d7aa59
JD		 13521 return true;
13522
13523nla_put_failure:
13524 return false;
13525}
13526
13527/*
13528 * This can happen on global regulatory changes or device specific settings
13529 * based on custom regulatory domains.
13530 */
13531void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
13532 struct regulatory_request *request)
13533{
13534 struct sk_buff *msg;
13535 void *hdr;
13536
13537 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13538 if (!msg)
13539 return;
13540
13541 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
13542 if (!hdr) {
13543 nlmsg_free(msg);
13544 return;
13545 }
13546
13547 if (nl80211_reg_change_event_fill(msg, request) == false)
13548 goto nla_put_failure;
13549
3b7b72ee 13550 genlmsg_end(msg, hdr);
73d54c9e 13551
bc43b28c 13552 rcu_read_lock();
68eb5503 13553 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 13554 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 13555 rcu_read_unlock();
73d54c9e
LR		 13556
13557 return;
13558
13559nla_put_failure:
13560 genlmsg_cancel(msg, hdr);
13561 nlmsg_free(msg);
13562}
13563
6039f6d2
JM		 13564static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
13565 struct net_device *netdev,
13566 const u8 *buf, size_t len,
b0b6aa2c
EP		 13567 enum nl80211_commands cmd, gfp_t gfp,
13568 int uapsd_queues)
6039f6d2
JM		 13569{
13570 struct sk_buff *msg;
13571 void *hdr;
13572
4ef8c1c9 13573 msg = nlmsg_new(100 + len, gfp);
6039f6d2
JM		 13574 if (!msg)
13575 return;
13576
13577 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13578 if (!hdr) {
13579 nlmsg_free(msg);
13580 return;
13581 }
13582
9360ffd1
DM		 13583 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13584 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13585 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
13586 goto nla_put_failure;
6039f6d2 13587
b0b6aa2c
EP		 13588 if (uapsd_queues >= 0) {
13589 struct nlattr *nla_wmm =
13590 nla_nest_start(msg, NL80211_ATTR_STA_WME);
13591 if (!nla_wmm)
13592 goto nla_put_failure;
13593
13594 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
13595 uapsd_queues))
13596 goto nla_put_failure;
13597
13598 nla_nest_end(msg, nla_wmm);
13599 }
13600
3b7b72ee 13601 genlmsg_end(msg, hdr);
6039f6d2 13602
68eb5503 13603 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13604 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 13605 return;
13606
13607 nla_put_failure:
13608 genlmsg_cancel(msg, hdr);
13609 nlmsg_free(msg);
13610}
13611
13612void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13613 struct net_device *netdev, const u8 *buf,
13614 size_t len, gfp_t gfp)
6039f6d2
JM		 13615{
13616 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13617 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 13618}
13619
13620void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
13621 struct net_device *netdev, const u8 *buf,
b0b6aa2c 13622 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 13623{
e6d6e342 13624 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13625 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 13626}
13627
53b46b84 13628void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13629 struct net_device *netdev, const u8 *buf,
13630 size_t len, gfp_t gfp)
6039f6d2
JM		 13631{
13632 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13633 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 13634}
13635
53b46b84
JM		 13636void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
13637 struct net_device *netdev, const u8 *buf,
e6d6e342 13638 size_t len, gfp_t gfp)
6039f6d2
JM		 13639{
13640 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 13641 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 13642}
13643
6ff57cf8
JB		 13644void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
13645 size_t len)
cf4e594e 13646{
947add36
JB		 13647 struct wireless_dev *wdev = dev->ieee80211_ptr;
13648 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13649 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 13650 const struct ieee80211_mgmt *mgmt = (void *)buf;
13651 u32 cmd;
947add36 13652
6ff57cf8
JB		 13653 if (WARN_ON(len < 2))
13654 return;
cf4e594e 13655
6ff57cf8
JB		 13656 if (ieee80211_is_deauth(mgmt->frame_control))
13657 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
13658 else
13659 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 13660
6ff57cf8 13661 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 13662 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 13663}
6ff57cf8 13664EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 13665
1b06bb40
LR		 13666static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
13667 struct net_device *netdev, int cmd,
e6d6e342 13668 const u8 *addr, gfp_t gfp)
1965c853
JM		 13669{
13670 struct sk_buff *msg;
13671 void *hdr;
13672
e6d6e342 13673 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 13674 if (!msg)
13675 return;
13676
13677 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13678 if (!hdr) {
13679 nlmsg_free(msg);
13680 return;
13681 }
13682
9360ffd1
DM		 13683 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13684 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13685 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13686 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13687 goto nla_put_failure;
1965c853 13688
3b7b72ee 13689 genlmsg_end(msg, hdr);
1965c853 13690
68eb5503 13691 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13692 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 13693 return;
13694
13695 nla_put_failure:
13696 genlmsg_cancel(msg, hdr);
13697 nlmsg_free(msg);
13698}
13699
13700void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13701 struct net_device *netdev, const u8 *addr,
13702 gfp_t gfp)
1965c853
JM		 13703{
13704 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 13705 addr, gfp);
1965c853
JM		 13706}
13707
13708void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 13709 struct net_device *netdev, const u8 *addr,
13710 gfp_t gfp)
1965c853 13711{
e6d6e342
JB		 13712 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
13713 addr, gfp);
1965c853
JM		 13714}
13715
b23aa676 13716void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5349a0f7
VK		 13717 struct net_device *netdev,
13718 struct cfg80211_connect_resp_params *cr,
3093ebbe 13719 gfp_t gfp)
b23aa676
SO		 13720{
13721 struct sk_buff *msg;
13722 void *hdr;
13723
a3caf744
VK		 13724 msg = nlmsg_new(100 + cr->req_ie_len + cr->resp_ie_len +
13725 cr->fils_kek_len + cr->pmk_len +
13726 (cr->pmkid ? WLAN_PMKID_LEN : 0), gfp);
b23aa676
SO		 13727 if (!msg)
13728 return;
13729
13730 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
13731 if (!hdr) {
13732 nlmsg_free(msg);
13733 return;
13734 }
13735
9360ffd1
DM		 13736 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13737 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
5349a0f7
VK		 13738 (cr->bssid &&
13739 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, cr->bssid)) ||
bf1ecd21 13740 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
5349a0f7
VK		 13741 cr->status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
13742 cr->status) ||
13743 (cr->status < 0 &&
3093ebbe 13744 (nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
5349a0f7
VK		 13745 nla_put_u32(msg, NL80211_ATTR_TIMEOUT_REASON,
13746 cr->timeout_reason))) ||
13747 (cr->req_ie &&
13748 nla_put(msg, NL80211_ATTR_REQ_IE, cr->req_ie_len, cr->req_ie)) ||
13749 (cr->resp_ie &&
13750 nla_put(msg, NL80211_ATTR_RESP_IE, cr->resp_ie_len,
a3caf744
VK		 13751 cr->resp_ie)) ||
13752 (cr->update_erp_next_seq_num &&
13753 nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM,
13754 cr->fils_erp_next_seq_num)) ||
13755 (cr->status == WLAN_STATUS_SUCCESS &&
13756 ((cr->fils_kek &&
13757 nla_put(msg, NL80211_ATTR_FILS_KEK, cr->fils_kek_len,
13758 cr->fils_kek)) ||
13759 (cr->pmk &&
13760 nla_put(msg, NL80211_ATTR_PMK, cr->pmk_len, cr->pmk)) ||
13761 (cr->pmkid &&
13762 nla_put(msg, NL80211_ATTR_PMKID, WLAN_PMKID_LEN, cr->pmkid)))))
9360ffd1 13763 goto nla_put_failure;
b23aa676 13764
3b7b72ee 13765 genlmsg_end(msg, hdr);
b23aa676 13766
68eb5503 13767 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13768 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 13769 return;
13770
13771 nla_put_failure:
13772 genlmsg_cancel(msg, hdr);
13773 nlmsg_free(msg);
b23aa676
SO		 13774}
13775
13776void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
29ce6ecb
AS		 13777 struct net_device *netdev,
13778 struct cfg80211_roam_info *info, gfp_t gfp)
b23aa676
SO		 13779{
13780 struct sk_buff *msg;
13781 void *hdr;
29ce6ecb 13782 const u8 *bssid = info->bss ? info->bss->bssid : info->bssid;
b23aa676 13783
29ce6ecb 13784 msg = nlmsg_new(100 + info->req_ie_len + info->resp_ie_len, gfp);
b23aa676
SO		 13785 if (!msg)
13786 return;
13787
13788 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
13789 if (!hdr) {
13790 nlmsg_free(msg);
13791 return;
13792 }
13793
9360ffd1
DM		 13794 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13795 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13796 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
29ce6ecb
AS		 13797 (info->req_ie &&
13798 nla_put(msg, NL80211_ATTR_REQ_IE, info->req_ie_len,
13799 info->req_ie)) ||
13800 (info->resp_ie &&
13801 nla_put(msg, NL80211_ATTR_RESP_IE, info->resp_ie_len,
f45cbe6e
AS		 13802 info->resp_ie)) ||
13803 (info->authorized &&
13804 nla_put_flag(msg, NL80211_ATTR_PORT_AUTHORIZED)))
9360ffd1 13805 goto nla_put_failure;
b23aa676 13806
3b7b72ee 13807 genlmsg_end(msg, hdr);
b23aa676 13808
68eb5503 13809 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13810 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 13811 return;
13812
13813 nla_put_failure:
13814 genlmsg_cancel(msg, hdr);
13815 nlmsg_free(msg);
b23aa676
SO		 13816}
13817
13818void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
13819 struct net_device *netdev, u16 reason,
667503dd 13820 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 13821{
13822 struct sk_buff *msg;
13823 void *hdr;
13824
4ef8c1c9 13825 msg = nlmsg_new(100 + ie_len, GFP_KERNEL);
b23aa676
SO		 13826 if (!msg)
13827 return;
13828
13829 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
13830 if (!hdr) {
13831 nlmsg_free(msg);
13832 return;
13833 }
13834
9360ffd1
DM		 13835 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13836 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13837 (from_ap && reason &&
13838 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
13839 (from_ap &&
13840 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
13841 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
13842 goto nla_put_failure;
b23aa676 13843
3b7b72ee 13844 genlmsg_end(msg, hdr);
b23aa676 13845
68eb5503 13846 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13847 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 13848 return;
13849
13850 nla_put_failure:
13851 genlmsg_cancel(msg, hdr);
13852 nlmsg_free(msg);
b23aa676
SO		 13853}
13854
04a773ad
JB		 13855void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
13856 struct net_device *netdev, const u8 *bssid,
13857 gfp_t gfp)
13858{
13859 struct sk_buff *msg;
13860 void *hdr;
13861
fd2120ca 13862 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 13863 if (!msg)
13864 return;
13865
13866 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
13867 if (!hdr) {
13868 nlmsg_free(msg);
13869 return;
13870 }
13871
9360ffd1
DM		 13872 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13873 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13874 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13875 goto nla_put_failure;
04a773ad 13876
3b7b72ee 13877 genlmsg_end(msg, hdr);
04a773ad 13878
68eb5503 13879 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13880 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 13881 return;
13882
13883 nla_put_failure:
13884 genlmsg_cancel(msg, hdr);
13885 nlmsg_free(msg);
13886}
13887
947add36
JB		 13888void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
13889 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 13890{
947add36 13891 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13892 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 13893 struct sk_buff *msg;
13894 void *hdr;
13895
947add36
JB		 13896 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
13897 return;
13898
13899 trace_cfg80211_notify_new_peer_candidate(dev, addr);
13900
4ef8c1c9 13901 msg = nlmsg_new(100 + ie_len, gfp);
c93b5e71
JC		 13902 if (!msg)
13903 return;
13904
13905 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
13906 if (!hdr) {
13907 nlmsg_free(msg);
13908 return;
13909 }
13910
9360ffd1 13911 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 13912 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13913 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 13914 (ie_len && ie &&
13915 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
13916 goto nla_put_failure;
c93b5e71 13917
3b7b72ee 13918 genlmsg_end(msg, hdr);
c93b5e71 13919
68eb5503 13920 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13921 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 13922 return;
13923
13924 nla_put_failure:
13925 genlmsg_cancel(msg, hdr);
13926 nlmsg_free(msg);
13927}
947add36 13928EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 13929
a3b8b056
JM		 13930void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
13931 struct net_device *netdev, const u8 *addr,
13932 enum nl80211_key_type key_type, int key_id,
e6d6e342 13933 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 13934{
13935 struct sk_buff *msg;
13936 void *hdr;
13937
e6d6e342 13938 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 13939 if (!msg)
13940 return;
13941
13942 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
13943 if (!hdr) {
13944 nlmsg_free(msg);
13945 return;
13946 }
13947
9360ffd1
DM		 13948 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13949 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13950 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
13951 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
13952 (key_id != -1 &&
13953 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
13954 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
13955 goto nla_put_failure;
a3b8b056 13956
3b7b72ee 13957 genlmsg_end(msg, hdr);
a3b8b056 13958
68eb5503 13959 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13960 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 13961 return;
13962
13963 nla_put_failure:
13964 genlmsg_cancel(msg, hdr);
13965 nlmsg_free(msg);
13966}
13967
6bad8766
LR		 13968void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
13969 struct ieee80211_channel *channel_before,
13970 struct ieee80211_channel *channel_after)
13971{
13972 struct sk_buff *msg;
13973 void *hdr;
13974 struct nlattr *nl_freq;
13975
fd2120ca 13976 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 13977 if (!msg)
13978 return;
13979
13980 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
13981 if (!hdr) {
13982 nlmsg_free(msg);
13983 return;
13984 }
13985
13986 /*
13987 * Since we are applying the beacon hint to a wiphy we know its
13988 * wiphy_idx is valid
13989 */
9360ffd1
DM		 13990 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
13991 goto nla_put_failure;
6bad8766
LR		 13992
13993 /* Before */
13994 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
13995 if (!nl_freq)
13996 goto nla_put_failure;
cdc89b97 13997 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 13998 goto nla_put_failure;
13999 nla_nest_end(msg, nl_freq);
14000
14001 /* After */
14002 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
14003 if (!nl_freq)
14004 goto nla_put_failure;
cdc89b97 14005 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 14006 goto nla_put_failure;
14007 nla_nest_end(msg, nl_freq);
14008
3b7b72ee 14009 genlmsg_end(msg, hdr);
6bad8766 14010
463d0183 14011 rcu_read_lock();
68eb5503 14012 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 14013 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 14014 rcu_read_unlock();
6bad8766
LR		 14015
14016 return;
14017
14018nla_put_failure:
14019 genlmsg_cancel(msg, hdr);
14020 nlmsg_free(msg);
14021}
14022
9588bbd5
JM		 14023static void nl80211_send_remain_on_chan_event(
14024 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 14025 struct wireless_dev *wdev, u64 cookie,
9588bbd5 14026 struct ieee80211_channel *chan,
9588bbd5
JM		 14027 unsigned int duration, gfp_t gfp)
14028{
14029 struct sk_buff *msg;
14030 void *hdr;
14031
14032 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14033 if (!msg)
14034 return;
14035
14036 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14037 if (!hdr) {
14038 nlmsg_free(msg);
14039 return;
14040 }
14041
9360ffd1 14042 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 14043 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14044 wdev->netdev->ifindex)) ||
2dad624e
ND		 14045 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14046 NL80211_ATTR_PAD) ||
9360ffd1 14047 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 14048 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
14049 NL80211_CHAN_NO_HT) ||
2dad624e
ND		 14050 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14051 NL80211_ATTR_PAD))
9360ffd1 14052 goto nla_put_failure;
9588bbd5 14053
9360ffd1
DM		 14054 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
14055 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
14056 goto nla_put_failure;
9588bbd5 14057
3b7b72ee 14058 genlmsg_end(msg, hdr);
9588bbd5 14059
68eb5503 14060 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14061 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 14062 return;
14063
14064 nla_put_failure:
14065 genlmsg_cancel(msg, hdr);
14066 nlmsg_free(msg);
14067}
14068
947add36
JB		 14069void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
14070 struct ieee80211_channel *chan,
14071 unsigned int duration, gfp_t gfp)
9588bbd5 14072{
947add36 14073 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14074 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14075
14076 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 14077 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 14078 rdev, wdev, cookie, chan,
42d97a59 14079 duration, gfp);
9588bbd5 14080}
947add36 14081EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 14082
947add36
JB		 14083void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
14084 struct ieee80211_channel *chan,
14085 gfp_t gfp)
9588bbd5 14086{
947add36 14087 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14088 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14089
14090 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 14091 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 14092 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 14093}
947add36 14094EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 14095
947add36
JB		 14096void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
14097 struct station_info *sinfo, gfp_t gfp)
98b62183 14098{
947add36 14099 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 14100 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 14101 struct sk_buff *msg;
14102
947add36
JB		 14103 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
14104
58050fce 14105 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 14106 if (!msg)
14107 return;
14108
cf5ead82 14109 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 14110 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 14111 nlmsg_free(msg);
14112 return;
14113 }
14114
68eb5503 14115 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14116 NL80211_MCGRP_MLME, gfp);
98b62183 14117}
947add36 14118EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 14119
cf5ead82
JB		 14120void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
14121 struct station_info *sinfo, gfp_t gfp)
ec15e68b 14122{
947add36 14123 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 14124 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 14125 struct sk_buff *msg;
cf5ead82
JB		 14126 struct station_info empty_sinfo = {};
14127
14128 if (!sinfo)
14129 sinfo = &empty_sinfo;
ec15e68b 14130
947add36
JB		 14131 trace_cfg80211_del_sta(dev, mac_addr);
14132
58050fce 14133 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 14134 if (!msg)
14135 return;
14136
cf5ead82 14137 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 14138 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 14139 nlmsg_free(msg);
14140 return;
14141 }
14142
68eb5503 14143 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14144 NL80211_MCGRP_MLME, gfp);
ec15e68b 14145}
cf5ead82 14146EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 14147
947add36
JB		 14148void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
14149 enum nl80211_connect_failed_reason reason,
14150 gfp_t gfp)
ed44a951 14151{
947add36 14152 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 14153 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 14154 struct sk_buff *msg;
14155 void *hdr;
14156
14157 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
14158 if (!msg)
14159 return;
14160
14161 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
14162 if (!hdr) {
14163 nlmsg_free(msg);
14164 return;
14165 }
14166
14167 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14168 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
14169 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
14170 goto nla_put_failure;
14171
14172 genlmsg_end(msg, hdr);
14173
68eb5503 14174 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14175 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 14176 return;
14177
14178 nla_put_failure:
14179 genlmsg_cancel(msg, hdr);
14180 nlmsg_free(msg);
14181}
947add36 14182EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 14183
b92ab5d8
JB		 14184static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
14185 const u8 *addr, gfp_t gfp)
28946da7
JB		 14186{
14187 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14188 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 14189 struct sk_buff *msg;
14190 void *hdr;
15e47304 14191 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 14192
15e47304 14193 if (!nlportid)
28946da7
JB		 14194 return false;
14195
14196 msg = nlmsg_new(100, gfp);
14197 if (!msg)
14198 return true;
14199
b92ab5d8 14200 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 14201 if (!hdr) {
14202 nlmsg_free(msg);
14203 return true;
14204 }
14205
9360ffd1
DM		 14206 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14207 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14208 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
14209 goto nla_put_failure;
28946da7 14210
9c90a9f6 14211 genlmsg_end(msg, hdr);
15e47304 14212 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 14213 return true;
14214
14215 nla_put_failure:
14216 genlmsg_cancel(msg, hdr);
14217 nlmsg_free(msg);
14218 return true;
14219}
14220
947add36
JB		 14221bool cfg80211_rx_spurious_frame(struct net_device *dev,
14222 const u8 *addr, gfp_t gfp)
b92ab5d8 14223{
947add36
JB		 14224 struct wireless_dev *wdev = dev->ieee80211_ptr;
14225 bool ret;
14226
14227 trace_cfg80211_rx_spurious_frame(dev, addr);
14228
14229 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
14230 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
14231 trace_cfg80211_return_bool(false);
14232 return false;
14233 }
14234 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
14235 addr, gfp);
14236 trace_cfg80211_return_bool(ret);
14237 return ret;
b92ab5d8 14238}
947add36 14239EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 14240
947add36
JB		 14241bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
14242 const u8 *addr, gfp_t gfp)
b92ab5d8 14243{
947add36
JB		 14244 struct wireless_dev *wdev = dev->ieee80211_ptr;
14245 bool ret;
14246
14247 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
14248
14249 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
14250 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
14251 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
14252 trace_cfg80211_return_bool(false);
14253 return false;
14254 }
14255 ret = __nl80211_unexpected_frame(dev,
14256 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
14257 addr, gfp);
14258 trace_cfg80211_return_bool(ret);
14259 return ret;
b92ab5d8 14260}
947add36 14261EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 14262
2e161f78 14263int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 14264 struct wireless_dev *wdev, u32 nlportid,
804483e9 14265 int freq, int sig_dbm,
19504cf5 14266 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 14267{
71bbc994 14268 struct net_device *netdev = wdev->netdev;
026331c4
JM		 14269 struct sk_buff *msg;
14270 void *hdr;
026331c4 14271
4ef8c1c9 14272 msg = nlmsg_new(100 + len, gfp);
026331c4
JM		 14273 if (!msg)
14274 return -ENOMEM;
14275
2e161f78 14276 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 14277 if (!hdr) {
14278 nlmsg_free(msg);
14279 return -ENOMEM;
14280 }
14281
9360ffd1 14282 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 14283 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14284 netdev->ifindex)) ||
2dad624e
ND		 14285 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14286 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14287 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
14288 (sig_dbm &&
14289 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 14290 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
14291 (flags &&
14292 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 14293 goto nla_put_failure;
026331c4 14294
3b7b72ee 14295 genlmsg_end(msg, hdr);
026331c4 14296
15e47304 14297 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 14298
14299 nla_put_failure:
14300 genlmsg_cancel(msg, hdr);
14301 nlmsg_free(msg);
14302 return -ENOBUFS;
14303}
14304
947add36
JB		 14305void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
14306 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 14307{
947add36 14308 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14309 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 14310 struct net_device *netdev = wdev->netdev;
026331c4
JM		 14311 struct sk_buff *msg;
14312 void *hdr;
14313
947add36
JB		 14314 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
14315
4ef8c1c9 14316 msg = nlmsg_new(100 + len, gfp);
026331c4
JM		 14317 if (!msg)
14318 return;
14319
2e161f78 14320 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 14321 if (!hdr) {
14322 nlmsg_free(msg);
14323 return;
14324 }
14325
9360ffd1 14326 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 14327 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14328 netdev->ifindex)) ||
2dad624e
ND		 14329 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14330 NL80211_ATTR_PAD) ||
9360ffd1 14331 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
2dad624e
ND		 14332 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14333 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14334 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
14335 goto nla_put_failure;
026331c4 14336
3b7b72ee 14337 genlmsg_end(msg, hdr);
026331c4 14338
68eb5503 14339 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14340 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 14341 return;
14342
14343 nla_put_failure:
14344 genlmsg_cancel(msg, hdr);
14345 nlmsg_free(msg);
14346}
947add36 14347EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 14348
5b97f49d
JB		 14349static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
14350 const char *mac, gfp_t gfp)
d6dc1a38 14351{
947add36 14352 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 14353 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14354 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14355 void **cb;
947add36 14356
d6dc1a38 14357 if (!msg)
5b97f49d 14358 return NULL;
d6dc1a38 14359
5b97f49d
JB		 14360 cb = (void **)msg->cb;
14361
14362 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
14363 if (!cb[0]) {
d6dc1a38 14364 nlmsg_free(msg);
5b97f49d 14365 return NULL;
d6dc1a38
JO		 14366 }
14367
9360ffd1 14368 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 14369 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 14370 goto nla_put_failure;
d6dc1a38 14371
5b97f49d 14372 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 14373 goto nla_put_failure;
14374
5b97f49d
JB		 14375 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
14376 if (!cb[1])
9360ffd1 14377 goto nla_put_failure;
d6dc1a38 14378
5b97f49d 14379 cb[2] = rdev;
d6dc1a38 14380
5b97f49d
JB		 14381 return msg;
14382 nla_put_failure:
14383 nlmsg_free(msg);
14384 return NULL;
14385}
14386
14387static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
14388{
14389 void **cb = (void **)msg->cb;
14390 struct cfg80211_registered_device *rdev = cb[2];
14391
14392 nla_nest_end(msg, cb[1]);
14393 genlmsg_end(msg, cb[0]);
14394
14395 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 14396
68eb5503 14397 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14398 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 14399}
14400
14401void cfg80211_cqm_rssi_notify(struct net_device *dev,
14402 enum nl80211_cqm_rssi_threshold_event rssi_event,
bee427b8 14403 s32 rssi_level, gfp_t gfp)
5b97f49d
JB		 14404{
14405 struct sk_buff *msg;
4a4b8169
AZ		 14406 struct wireless_dev *wdev = dev->ieee80211_ptr;
14407 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
5b97f49d 14408
bee427b8 14409 trace_cfg80211_cqm_rssi_notify(dev, rssi_event, rssi_level);
5b97f49d 14410
98f03342
JB		 14411 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
14412 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
14413 return;
14414
4a4b8169
AZ		 14415 if (wdev->cqm_config) {
14416 wdev->cqm_config->last_rssi_event_value = rssi_level;
14417
14418 cfg80211_cqm_rssi_update(rdev, dev);
14419
14420 if (rssi_level == 0)
14421 rssi_level = wdev->cqm_config->last_rssi_event_value;
14422 }
14423
5b97f49d
JB		 14424 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14425 if (!msg)
14426 return;
14427
14428 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
14429 rssi_event))
14430 goto nla_put_failure;
14431
bee427b8
AZ		 14432 if (rssi_level && nla_put_s32(msg, NL80211_ATTR_CQM_RSSI_LEVEL,
14433 rssi_level))
14434 goto nla_put_failure;
14435
5b97f49d
JB		 14436 cfg80211_send_cqm(msg, gfp);
14437
d6dc1a38
JO		 14438 return;
14439
14440 nla_put_failure:
d6dc1a38
JO		 14441 nlmsg_free(msg);
14442}
947add36 14443EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 14444
5b97f49d
JB		 14445void cfg80211_cqm_txe_notify(struct net_device *dev,
14446 const u8 *peer, u32 num_packets,
14447 u32 rate, u32 intvl, gfp_t gfp)
14448{
14449 struct sk_buff *msg;
14450
14451 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14452 if (!msg)
14453 return;
14454
14455 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
14456 goto nla_put_failure;
14457
14458 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
14459 goto nla_put_failure;
14460
14461 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
14462 goto nla_put_failure;
14463
14464 cfg80211_send_cqm(msg, gfp);
14465 return;
14466
14467 nla_put_failure:
14468 nlmsg_free(msg);
14469}
14470EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
14471
14472void cfg80211_cqm_pktloss_notify(struct net_device *dev,
14473 const u8 *peer, u32 num_packets, gfp_t gfp)
14474{
14475 struct sk_buff *msg;
14476
14477 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
14478
14479 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14480 if (!msg)
14481 return;
14482
14483 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
14484 goto nla_put_failure;
14485
14486 cfg80211_send_cqm(msg, gfp);
14487 return;
14488
14489 nla_put_failure:
14490 nlmsg_free(msg);
14491}
14492EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
14493
98f03342
JB		 14494void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
14495{
14496 struct sk_buff *msg;
14497
14498 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14499 if (!msg)
14500 return;
14501
14502 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
14503 goto nla_put_failure;
14504
14505 cfg80211_send_cqm(msg, gfp);
14506 return;
14507
14508 nla_put_failure:
14509 nlmsg_free(msg);
14510}
14511EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
14512
947add36
JB		 14513static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
14514 struct net_device *netdev, const u8 *bssid,
14515 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 14516{
14517 struct sk_buff *msg;
14518 struct nlattr *rekey_attr;
14519 void *hdr;
14520
58050fce 14521 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 14522 if (!msg)
14523 return;
14524
14525 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
14526 if (!hdr) {
14527 nlmsg_free(msg);
14528 return;
14529 }
14530
9360ffd1
DM		 14531 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14532 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14533 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14534 goto nla_put_failure;
e5497d76
JB		 14535
14536 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
14537 if (!rekey_attr)
14538 goto nla_put_failure;
14539
9360ffd1
DM		 14540 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
14541 NL80211_REPLAY_CTR_LEN, replay_ctr))
14542 goto nla_put_failure;
e5497d76
JB		 14543
14544 nla_nest_end(msg, rekey_attr);
14545
3b7b72ee 14546 genlmsg_end(msg, hdr);
e5497d76 14547
68eb5503 14548 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14549 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 14550 return;
14551
14552 nla_put_failure:
14553 genlmsg_cancel(msg, hdr);
14554 nlmsg_free(msg);
14555}
14556
947add36
JB		 14557void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
14558 const u8 *replay_ctr, gfp_t gfp)
14559{
14560 struct wireless_dev *wdev = dev->ieee80211_ptr;
14561 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14562 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14563
14564 trace_cfg80211_gtk_rekey_notify(dev, bssid);
14565 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
14566}
14567EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
14568
14569static void
14570nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
14571 struct net_device *netdev, int index,
14572 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 14573{
14574 struct sk_buff *msg;
14575 struct nlattr *attr;
14576 void *hdr;
14577
58050fce 14578 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 14579 if (!msg)
14580 return;
14581
14582 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
14583 if (!hdr) {
14584 nlmsg_free(msg);
14585 return;
14586 }
14587
9360ffd1
DM		 14588 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14589 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14590 goto nla_put_failure;
c9df56b4
JM		 14591
14592 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
14593 if (!attr)
14594 goto nla_put_failure;
14595
9360ffd1
DM		 14596 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
14597 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
14598 (preauth &&
14599 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
14600 goto nla_put_failure;
c9df56b4
JM		 14601
14602 nla_nest_end(msg, attr);
14603
3b7b72ee 14604 genlmsg_end(msg, hdr);
c9df56b4 14605
68eb5503 14606 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14607 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 14608 return;
14609
14610 nla_put_failure:
14611 genlmsg_cancel(msg, hdr);
14612 nlmsg_free(msg);
14613}
14614
947add36
JB		 14615void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
14616 const u8 *bssid, bool preauth, gfp_t gfp)
14617{
14618 struct wireless_dev *wdev = dev->ieee80211_ptr;
14619 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14620 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 14621
14622 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
14623 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
14624}
14625EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
14626
14627static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
14628 struct net_device *netdev,
14629 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 14630 gfp_t gfp,
14631 enum nl80211_commands notif,
14632 u8 count)
5314526b
TP		 14633{
14634 struct sk_buff *msg;
14635 void *hdr;
14636
58050fce 14637 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 14638 if (!msg)
14639 return;
14640
f8d7552e 14641 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 14642 if (!hdr) {
14643 nlmsg_free(msg);
14644 return;
14645 }
14646
683b6d3b
JB		 14647 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14648 goto nla_put_failure;
14649
14650 if (nl80211_send_chandef(msg, chandef))
7eab0f64 14651 goto nla_put_failure;
5314526b 14652
f8d7552e
LC		 14653 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
14654 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
14655 goto nla_put_failure;
14656
5314526b
TP		 14657 genlmsg_end(msg, hdr);
14658
68eb5503 14659 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14660 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 14661 return;
14662
14663 nla_put_failure:
14664 genlmsg_cancel(msg, hdr);
14665 nlmsg_free(msg);
14666}
14667
947add36
JB		 14668void cfg80211_ch_switch_notify(struct net_device *dev,
14669 struct cfg80211_chan_def *chandef)
84f10708 14670{
947add36
JB		 14671 struct wireless_dev *wdev = dev->ieee80211_ptr;
14672 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 14673 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 14674
e487eaeb 14675 ASSERT_WDEV_LOCK(wdev);
947add36 14676
e487eaeb 14677 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 14678
9e0e2961 14679 wdev->chandef = *chandef;
96f55f12 14680 wdev->preset_chandef = *chandef;
f8d7552e
LC		 14681 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14682 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 14683}
14684EXPORT_SYMBOL(cfg80211_ch_switch_notify);
14685
f8d7552e
LC		 14686void cfg80211_ch_switch_started_notify(struct net_device *dev,
14687 struct cfg80211_chan_def *chandef,
14688 u8 count)
14689{
14690 struct wireless_dev *wdev = dev->ieee80211_ptr;
14691 struct wiphy *wiphy = wdev->wiphy;
14692 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14693
14694 trace_cfg80211_ch_switch_started_notify(dev, chandef);
14695
14696 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14697 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
14698}
14699EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
14700
04f39047
SW		 14701void
14702nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 14703 const struct cfg80211_chan_def *chandef,
04f39047
SW		 14704 enum nl80211_radar_event event,
14705 struct net_device *netdev, gfp_t gfp)
14706{
14707 struct sk_buff *msg;
14708 void *hdr;
14709
14710 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14711 if (!msg)
14712 return;
14713
14714 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
14715 if (!hdr) {
14716 nlmsg_free(msg);
14717 return;
14718 }
14719
14720 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
14721 goto nla_put_failure;
14722
14723 /* NOP and radar events don't need a netdev parameter */
14724 if (netdev) {
14725 struct wireless_dev *wdev = netdev->ieee80211_ptr;
14726
14727 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
2dad624e
ND		 14728 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14729 NL80211_ATTR_PAD))
04f39047
SW		 14730 goto nla_put_failure;
14731 }
14732
14733 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
14734 goto nla_put_failure;
14735
14736 if (nl80211_send_chandef(msg, chandef))
14737 goto nla_put_failure;
14738
9c90a9f6 14739 genlmsg_end(msg, hdr);
04f39047 14740
68eb5503 14741 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14742 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 14743 return;
14744
14745 nla_put_failure:
14746 genlmsg_cancel(msg, hdr);
14747 nlmsg_free(msg);
14748}
14749
7f6cf311
JB		 14750void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
14751 u64 cookie, bool acked, gfp_t gfp)
14752{
14753 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 14754 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 14755 struct sk_buff *msg;
14756 void *hdr;
7f6cf311 14757
4ee3e063
BL		 14758 trace_cfg80211_probe_status(dev, addr, cookie, acked);
14759
58050fce 14760 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 14761
7f6cf311
JB		 14762 if (!msg)
14763 return;
14764
14765 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
14766 if (!hdr) {
14767 nlmsg_free(msg);
14768 return;
14769 }
14770
9360ffd1
DM		 14771 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14772 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14773 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2dad624e
ND		 14774 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14775 NL80211_ATTR_PAD) ||
9360ffd1
DM		 14776 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
14777 goto nla_put_failure;
7f6cf311 14778
9c90a9f6 14779 genlmsg_end(msg, hdr);
7f6cf311 14780
68eb5503 14781 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 14782 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 14783 return;
14784
14785 nla_put_failure:
14786 genlmsg_cancel(msg, hdr);
14787 nlmsg_free(msg);
14788}
14789EXPORT_SYMBOL(cfg80211_probe_status);
14790
5e760230
JB		 14791void cfg80211_report_obss_beacon(struct wiphy *wiphy,
14792 const u8 *frame, size_t len,
37c73b5f 14793 int freq, int sig_dbm)
5e760230 14794{
f26cbf40 14795 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 14796 struct sk_buff *msg;
14797 void *hdr;
37c73b5f 14798 struct cfg80211_beacon_registration *reg;
5e760230 14799
4ee3e063
BL		 14800 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
14801
37c73b5f
BG		 14802 spin_lock_bh(&rdev->beacon_registrations_lock);
14803 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
14804 msg = nlmsg_new(len + 100, GFP_ATOMIC);
14805 if (!msg) {
14806 spin_unlock_bh(&rdev->beacon_registrations_lock);
14807 return;
14808 }
5e760230 14809
37c73b5f
BG		 14810 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
14811 if (!hdr)
14812 goto nla_put_failure;
5e760230 14813
37c73b5f
BG		 14814 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14815 (freq &&
14816 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
14817 (sig_dbm &&
14818 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
14819 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
14820 goto nla_put_failure;
5e760230 14821
37c73b5f 14822 genlmsg_end(msg, hdr);
5e760230 14823
37c73b5f
BG		 14824 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
14825 }
14826 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 14827 return;
14828
14829 nla_put_failure:
37c73b5f
BG		 14830 spin_unlock_bh(&rdev->beacon_registrations_lock);
14831 if (hdr)
14832 genlmsg_cancel(msg, hdr);
5e760230
JB		 14833 nlmsg_free(msg);
14834}
14835EXPORT_SYMBOL(cfg80211_report_obss_beacon);
14836
cd8f7cb4 14837#ifdef CONFIG_PM
8cd4d456
LC		 14838static int cfg80211_net_detect_results(struct sk_buff *msg,
14839 struct cfg80211_wowlan_wakeup *wakeup)
14840{
14841 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
14842 struct nlattr *nl_results, *nl_match, *nl_freqs;
14843 int i, j;
14844
14845 nl_results = nla_nest_start(
14846 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
14847 if (!nl_results)
14848 return -EMSGSIZE;
14849
14850 for (i = 0; i < nd->n_matches; i++) {
14851 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
14852
14853 nl_match = nla_nest_start(msg, i);
14854 if (!nl_match)
14855 break;
14856
14857 /* The SSID attribute is optional in nl80211, but for
14858 * simplicity reasons it's always present in the
14859 * cfg80211 structure. If a driver can't pass the
14860 * SSID, that needs to be changed. A zero length SSID
14861 * is still a valid SSID (wildcard), so it cannot be
14862 * used for this purpose.
14863 */
14864 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
14865 match->ssid.ssid)) {
14866 nla_nest_cancel(msg, nl_match);
14867 goto out;
14868 }
14869
14870 if (match->n_channels) {
14871 nl_freqs = nla_nest_start(
14872 msg, NL80211_ATTR_SCAN_FREQUENCIES);
14873 if (!nl_freqs) {
14874 nla_nest_cancel(msg, nl_match);
14875 goto out;
14876 }
14877
14878 for (j = 0; j < match->n_channels; j++) {
5528fae8 14879 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 14880 nla_nest_cancel(msg, nl_freqs);
14881 nla_nest_cancel(msg, nl_match);
14882 goto out;
14883 }
14884 }
14885
14886 nla_nest_end(msg, nl_freqs);
14887 }
14888
14889 nla_nest_end(msg, nl_match);
14890 }
14891
14892out:
14893 nla_nest_end(msg, nl_results);
14894 return 0;
14895}
14896
cd8f7cb4
JB		 14897void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
14898 struct cfg80211_wowlan_wakeup *wakeup,
14899 gfp_t gfp)
14900{
f26cbf40 14901 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 14902 struct sk_buff *msg;
14903 void *hdr;
9c90a9f6 14904 int size = 200;
cd8f7cb4
JB		 14905
14906 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
14907
14908 if (wakeup)
14909 size += wakeup->packet_present_len;
14910
14911 msg = nlmsg_new(size, gfp);
14912 if (!msg)
14913 return;
14914
14915 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
14916 if (!hdr)
14917 goto free_msg;
14918
14919 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 14920 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14921 NL80211_ATTR_PAD))
cd8f7cb4
JB		 14922 goto free_msg;
14923
14924 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14925 wdev->netdev->ifindex))
14926 goto free_msg;
14927
14928 if (wakeup) {
14929 struct nlattr *reasons;
14930
14931 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 14932 if (!reasons)
14933 goto free_msg;
cd8f7cb4
JB		 14934
14935 if (wakeup->disconnect &&
14936 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
14937 goto free_msg;
14938 if (wakeup->magic_pkt &&
14939 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
14940 goto free_msg;
14941 if (wakeup->gtk_rekey_failure &&
14942 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
14943 goto free_msg;
14944 if (wakeup->eap_identity_req &&
14945 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
14946 goto free_msg;
14947 if (wakeup->four_way_handshake &&
14948 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
14949 goto free_msg;
14950 if (wakeup->rfkill_release &&
14951 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
14952 goto free_msg;
14953
14954 if (wakeup->pattern_idx >= 0 &&
14955 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
14956 wakeup->pattern_idx))
14957 goto free_msg;
14958
ae917c9f
JB		 14959 if (wakeup->tcp_match &&
14960 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
14961 goto free_msg;
2a0e047e 14962
ae917c9f
JB		 14963 if (wakeup->tcp_connlost &&
14964 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
14965 goto free_msg;
2a0e047e 14966
ae917c9f
JB		 14967 if (wakeup->tcp_nomoretokens &&
14968 nla_put_flag(msg,
14969 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
14970 goto free_msg;
2a0e047e 14971
cd8f7cb4
JB		 14972 if (wakeup->packet) {
14973 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
14974 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
14975
14976 if (!wakeup->packet_80211) {
14977 pkt_attr =
14978 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
14979 len_attr =
14980 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
14981 }
14982
14983 if (wakeup->packet_len &&
14984 nla_put_u32(msg, len_attr, wakeup->packet_len))
14985 goto free_msg;
14986
14987 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
14988 wakeup->packet))
14989 goto free_msg;
14990 }
14991
8cd4d456
LC		 14992 if (wakeup->net_detect &&
14993 cfg80211_net_detect_results(msg, wakeup))
14994 goto free_msg;
14995
cd8f7cb4
JB		 14996 nla_nest_end(msg, reasons);
14997 }
14998
9c90a9f6 14999 genlmsg_end(msg, hdr);
cd8f7cb4 15000
68eb5503 15001 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 15002 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 15003 return;
15004
15005 free_msg:
15006 nlmsg_free(msg);
15007}
15008EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
15009#endif
15010
3475b094
JM		 15011void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
15012 enum nl80211_tdls_operation oper,
15013 u16 reason_code, gfp_t gfp)
15014{
15015 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 15016 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 15017 struct sk_buff *msg;
15018 void *hdr;
3475b094
JM		 15019
15020 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
15021 reason_code);
15022
15023 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15024 if (!msg)
15025 return;
15026
15027 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
15028 if (!hdr) {
15029 nlmsg_free(msg);
15030 return;
15031 }
15032
15033 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15034 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
15035 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
15036 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
15037 (reason_code > 0 &&
15038 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
15039 goto nla_put_failure;
15040
9c90a9f6 15041 genlmsg_end(msg, hdr);
3475b094 15042
68eb5503 15043 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 15044 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 15045 return;
15046
15047 nla_put_failure:
15048 genlmsg_cancel(msg, hdr);
15049 nlmsg_free(msg);
15050}
15051EXPORT_SYMBOL(cfg80211_tdls_oper_request);
15052
026331c4
JM		 15053static int nl80211_netlink_notify(struct notifier_block * nb,
15054 unsigned long state,
15055 void *_notify)
15056{
15057 struct netlink_notify *notify = _notify;
15058 struct cfg80211_registered_device *rdev;
15059 struct wireless_dev *wdev;
37c73b5f 15060 struct cfg80211_beacon_registration *reg, *tmp;
026331c4 15061
8f815cdd 15062 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
026331c4
JM		 15063 return NOTIFY_DONE;
15064
15065 rcu_read_lock();
15066
5e760230 15067 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
ca986ad9 15068 struct cfg80211_sched_scan_request *sched_scan_req;
753aacfd 15069
ca986ad9
AVS		 15070 list_for_each_entry_rcu(sched_scan_req,
15071 &rdev->sched_scan_req_list,
15072 list) {
15073 if (sched_scan_req->owner_nlportid == notify->portid) {
15074 sched_scan_req->nl_owner_dead = true;
753aacfd 15075 schedule_work(&rdev->sched_scan_stop_wk);
ca986ad9 15076 }
753aacfd 15077 }
78f22b6a 15078
53873f13 15079 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15e47304 15080 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 15081
ab81007a
JB		 15082 if (wdev->owner_nlportid == notify->portid) {
15083 wdev->nl_owner_dead = true;
15084 schedule_work(&rdev->destroy_work);
15085 } else if (wdev->conn_owner_nlportid == notify->portid) {
bd2522b1 15086 schedule_work(&wdev->disconnect_wk);
ab81007a 15087 }
78f22b6a
JB		 15088 }
15089
37c73b5f
BG		 15090 spin_lock_bh(&rdev->beacon_registrations_lock);
15091 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
15092 list) {
15093 if (reg->nlportid == notify->portid) {
15094 list_del(&reg->list);
15095 kfree(reg);
15096 break;
15097 }
15098 }
15099 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 15100 }
026331c4
JM		 15101
15102 rcu_read_unlock();
15103
05050753
I		 15104 /*
15105 * It is possible that the user space process that is controlling the
15106 * indoor setting disappeared, so notify the regulatory core.
15107 */
15108 regulatory_netlink_notify(notify->portid);
6784c7db 15109 return NOTIFY_OK;
026331c4
JM		 15110}
15111
15112static struct notifier_block nl80211_netlink_notifier = {
15113 .notifier_call = nl80211_netlink_notify,
15114};
15115
355199e0
JM		 15116void cfg80211_ft_event(struct net_device *netdev,
15117 struct cfg80211_ft_event_params *ft_event)
15118{
15119 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 15120 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 15121 struct sk_buff *msg;
15122 void *hdr;
355199e0
JM		 15123
15124 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
15125
15126 if (!ft_event->target_ap)
15127 return;
15128
4ef8c1c9 15129 msg = nlmsg_new(100 + ft_event->ric_ies_len, GFP_KERNEL);
355199e0
JM		 15130 if (!msg)
15131 return;
15132
15133 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 15134 if (!hdr)
15135 goto out;
355199e0 15136
ae917c9f
JB		 15137 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15138 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
15139 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
15140 goto out;
355199e0 15141
ae917c9f
JB		 15142 if (ft_event->ies &&
15143 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
15144 goto out;
15145 if (ft_event->ric_ies &&
15146 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
15147 ft_event->ric_ies))
15148 goto out;
355199e0 15149
9c90a9f6 15150 genlmsg_end(msg, hdr);
355199e0 15151
68eb5503 15152 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 15153 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 15154 return;
15155 out:
15156 nlmsg_free(msg);
355199e0
JM		 15157}
15158EXPORT_SYMBOL(cfg80211_ft_event);
15159
5de17984
AS		 15160void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
15161{
15162 struct cfg80211_registered_device *rdev;
15163 struct sk_buff *msg;
15164 void *hdr;
15165 u32 nlportid;
15166
f26cbf40 15167 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 15168 if (!rdev->crit_proto_nlportid)
15169 return;
15170
15171 nlportid = rdev->crit_proto_nlportid;
15172 rdev->crit_proto_nlportid = 0;
15173
15174 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15175 if (!msg)
15176 return;
15177
15178 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
15179 if (!hdr)
15180 goto nla_put_failure;
15181
15182 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 15183 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15184 NL80211_ATTR_PAD))
5de17984
AS		 15185 goto nla_put_failure;
15186
15187 genlmsg_end(msg, hdr);
15188
15189 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
15190 return;
15191
15192 nla_put_failure:
15193 if (hdr)
15194 genlmsg_cancel(msg, hdr);
15195 nlmsg_free(msg);
5de17984
AS		 15196}
15197EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
15198
348baf0e
JB		 15199void nl80211_send_ap_stopped(struct wireless_dev *wdev)
15200{
15201 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 15202 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 15203 struct sk_buff *msg;
15204 void *hdr;
15205
15206 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
15207 if (!msg)
15208 return;
15209
15210 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
15211 if (!hdr)
15212 goto out;
15213
15214 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15215 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
2dad624e
ND		 15216 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15217 NL80211_ATTR_PAD))
348baf0e
JB		 15218 goto out;
15219
15220 genlmsg_end(msg, hdr);
15221
15222 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
15223 NL80211_MCGRP_MLME, GFP_KERNEL);
15224 return;
15225 out:
15226 nlmsg_free(msg);
15227}
15228
55682965
JB		 15229/* initialisation/exit functions */
15230
56989f6d 15231int __init nl80211_init(void)
55682965 15232{
0d63cbb5 15233 int err;
55682965 15234
489111e5 15235 err = genl_register_family(&nl80211_fam);
55682965
JB		 15236 if (err)
15237 return err;
15238
026331c4
JM		 15239 err = netlink_register_notifier(&nl80211_netlink_notifier);
15240 if (err)
15241 goto err_out;
15242
55682965
JB		 15243 return 0;
15244 err_out:
15245 genl_unregister_family(&nl80211_fam);
15246 return err;
15247}
15248
15249void nl80211_exit(void)
15250{
026331c4 15251 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 15252 genl_unregister_family(&nl80211_fam);
15253}
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