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mac80211: add boilerplate code for start / stop NAN
[mirror_ubuntu-focal-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
0c9ca11b 6 * Copyright 2015-2016 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
f84f771d 35static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 36 struct genl_info *info);
f84f771d 37static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 38 struct genl_info *info);
39
55682965
JB		 40/* the netlink family */
41static struct genl_family nl80211_fam = {
fb4e1568
MH		 42 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
43 .name = NL80211_GENL_NAME, /* have users key off the name instead */
44 .hdrsize = 0, /* no private header */
45 .version = 1, /* no particular meaning now */
55682965 46 .maxattr = NL80211_ATTR_MAX,
463d0183 47 .netnsok = true,
4c476991
JB		 48 .pre_doit = nl80211_pre_doit,
49 .post_doit = nl80211_post_doit,
55682965
JB		 50};
51
2a94fe48
JB		 52/* multicast groups */
53enum nl80211_multicast_groups {
54 NL80211_MCGRP_CONFIG,
55 NL80211_MCGRP_SCAN,
56 NL80211_MCGRP_REGULATORY,
57 NL80211_MCGRP_MLME,
567ffc35 58 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 59 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
60};
61
62static const struct genl_multicast_group nl80211_mcgrps[] = {
71b836ec
JB		 63 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
64 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
65 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
66 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
67 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
2a94fe48 68#ifdef CONFIG_NL80211_TESTMODE
71b836ec 69 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
2a94fe48
JB		 70#endif
71};
72
89a54e48
JB		 73/* returns ERR_PTR values */
74static struct wireless_dev *
75__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 76{
89a54e48
JB		 77 struct cfg80211_registered_device *rdev;
78 struct wireless_dev *result = NULL;
79 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
80 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
81 u64 wdev_id;
82 int wiphy_idx = -1;
83 int ifidx = -1;
55682965 84
5fe231e8 85 ASSERT_RTNL();
55682965 86
89a54e48
JB		 87 if (!have_ifidx && !have_wdev_id)
88 return ERR_PTR(-EINVAL);
55682965 89
89a54e48
JB		 90 if (have_ifidx)
91 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
92 if (have_wdev_id) {
93 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
94 wiphy_idx = wdev_id >> 32;
55682965
JB		 95 }
96
89a54e48
JB		 97 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
98 struct wireless_dev *wdev;
99
100 if (wiphy_net(&rdev->wiphy) != netns)
101 continue;
102
103 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
104 continue;
105
53873f13 106 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
89a54e48
JB		 107 if (have_ifidx && wdev->netdev &&
108 wdev->netdev->ifindex == ifidx) {
109 result = wdev;
110 break;
111 }
112 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
113 result = wdev;
114 break;
115 }
116 }
89a54e48
JB		 117
118 if (result)
119 break;
120 }
121
122 if (result)
123 return result;
124 return ERR_PTR(-ENODEV);
55682965
JB		 125}
126
a9455408 127static struct cfg80211_registered_device *
878d9ec7 128__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 129{
7fee4778
JB		 130 struct cfg80211_registered_device *rdev = NULL, *tmp;
131 struct net_device *netdev;
a9455408 132
5fe231e8 133 ASSERT_RTNL();
a9455408 134
878d9ec7 135 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 136 !attrs[NL80211_ATTR_IFINDEX] &&
137 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 138 return ERR_PTR(-EINVAL);
139
878d9ec7 140 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 141 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 142 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 143
89a54e48
JB		 144 if (attrs[NL80211_ATTR_WDEV]) {
145 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
146 struct wireless_dev *wdev;
147 bool found = false;
148
149 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
150 if (tmp) {
151 /* make sure wdev exists */
53873f13 152 list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
89a54e48
JB		 153 if (wdev->identifier != (u32)wdev_id)
154 continue;
155 found = true;
156 break;
157 }
89a54e48
JB		 158
159 if (!found)
160 tmp = NULL;
161
162 if (rdev && tmp != rdev)
163 return ERR_PTR(-EINVAL);
164 rdev = tmp;
165 }
166 }
167
878d9ec7
JB		 168 if (attrs[NL80211_ATTR_IFINDEX]) {
169 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7a087e74 170
7f2b8562 171 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 172 if (netdev) {
173 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 174 tmp = wiphy_to_rdev(
175 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 176 else
177 tmp = NULL;
178
7fee4778
JB		 179 /* not wireless device -- return error */
180 if (!tmp)
181 return ERR_PTR(-EINVAL);
182
183 /* mismatch -- return error */
184 if (rdev && tmp != rdev)
185 return ERR_PTR(-EINVAL);
186
187 rdev = tmp;
a9455408 188 }
a9455408 189 }
a9455408 190
4f7eff10
JB		 191 if (!rdev)
192 return ERR_PTR(-ENODEV);
a9455408 193
4f7eff10
JB		 194 if (netns != wiphy_net(&rdev->wiphy))
195 return ERR_PTR(-ENODEV);
196
197 return rdev;
a9455408
JB		 198}
199
200/*
201 * This function returns a pointer to the driver
202 * that the genl_info item that is passed refers to.
a9455408
JB		 203 *
204 * The result of this can be a PTR_ERR and hence must
205 * be checked with IS_ERR() for errors.
206 */
207static struct cfg80211_registered_device *
4f7eff10 208cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 209{
5fe231e8 210 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 211}
212
55682965 213/* policy for the attributes */
8cd4d456 214static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 215 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
216 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 217 .len = 20-1 },
31888487 218 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 219
72bdcf34 220 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 221 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 222 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
223 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
224 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
225
b9a5f8ca
JM		 226 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
227 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
228 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
229 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 230 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 231 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 232
233 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
234 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
235 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 236
e007b857
EP		 237 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
238 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 239
b9454e83 240 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 241 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
242 .len = WLAN_MAX_KEY_LEN },
243 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
244 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
245 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 246 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 247 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 248
249 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
250 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
251 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_DATA_LEN },
253 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
254 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 255 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
256 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
257 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
258 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
259 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 260 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 261 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 262 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 263 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 264 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 265 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 266
b2e1b302
LR		 267 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
268 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
269
9f1ba906
JM		 270 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
271 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
272 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 273 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
274 .len = NL80211_MAX_SUPP_RATES },
50b12f59 275 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 276
24bdd9f4 277 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 278 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 279
6c739419 280 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 281
282 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
283 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
284 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 285 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
286 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 287
288 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
289 .len = IEEE80211_MAX_SSID_LEN },
290 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
291 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 292 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 293 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 294 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 295 [NL80211_ATTR_STA_FLAGS2] = {
296 .len = sizeof(struct nl80211_sta_flag_update),
297 },
3f77316c 298 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 299 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
300 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 301 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
302 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
303 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 304 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 305 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 306 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
307 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 308 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
309 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 310 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 311 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
312 .len = IEEE80211_MAX_DATA_LEN },
313 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 314 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 315 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 316 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 317 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 318 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
319 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 320 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 321 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
322 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 323 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 324 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 325 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 326 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 327 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 328 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 329 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 330 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 331 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 332 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
333 .len = IEEE80211_MAX_DATA_LEN },
334 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
335 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 336 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 337 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 338 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 339 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
341 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
342 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
343 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 344 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 345 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 346 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
347 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 348 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 349 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
350 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
351 .len = NL80211_HT_CAPABILITY_LEN
352 },
1d9d9213 353 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 354 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 355 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 356 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 357 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 358 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 359 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 360 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 361 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
362 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 363 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
364 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 365 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
366 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 367 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 368 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
369 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
370 .len = NL80211_VHT_CAPABILITY_LEN,
371 },
355199e0
JM		 372 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
373 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
374 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 375 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 376 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
377 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
378 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 379 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
380 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 381 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
382 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 383 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 384 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 385 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
386 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
387 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 388 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
389 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 390 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
391 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 392 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
18e5ca65 393 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 394 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 395 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 396 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
397 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
398 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 399 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 400 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 401 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
4b681c82 402 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
9c748934 403 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
05050753 404 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
34d50519 405 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
38de03d2 406 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
17b94247 407 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
c6e6a0c8
AE		 408 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
409 .len = VHT_MUMIMO_GROUPS_DATA_LEN
410 },
411 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
cb3b7d87
AB		 412 [NL80211_ATTR_NAN_MASTER_PREF] = { .type = NLA_U8 },
413 [NL80211_ATTR_NAN_DUAL] = { .type = NLA_U8 },
55682965
JB		 414};
415
e31b8213 416/* policy for the key attributes */
b54452b0 417static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 418 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 419 [NL80211_KEY_IDX] = { .type = NLA_U8 },
420 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 421 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 422 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
423 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 424 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 425 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
426};
427
428/* policy for the key default flags */
429static const struct nla_policy
430nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
431 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
432 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 433};
434
ff1b6e69
JB		 435/* policy for WoWLAN attributes */
436static const struct nla_policy
437nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
438 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
439 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
440 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
441 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 442 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
443 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
444 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
445 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 446 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 447 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 448};
449
450static const struct nla_policy
451nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
452 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
453 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
454 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
455 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
456 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
457 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
458 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
459 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
460 },
461 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
462 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
463 },
464 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
465 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
466 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 467};
468
be29b99a
AK		 469/* policy for coalesce rule attributes */
470static const struct nla_policy
471nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
472 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
473 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
474 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
475};
476
e5497d76
JB		 477/* policy for GTK rekey offload attributes */
478static const struct nla_policy
479nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
480 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
481 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
482 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
483};
484
a1f1c21c
LC		 485static const struct nla_policy
486nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 487 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 488 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 489 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 490};
491
3b06d277
AS		 492static const struct nla_policy
493nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
494 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
495 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
496};
497
38de03d2
AS		 498static const struct nla_policy
499nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
500 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
501 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
502 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
503 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
504 },
505};
506
97990a06
JB		 507static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
508 struct netlink_callback *cb,
509 struct cfg80211_registered_device **rdev,
510 struct wireless_dev **wdev)
a043897a 511{
97990a06 512 int err;
a043897a 513
97990a06 514 rtnl_lock();
a043897a 515
97990a06
JB		 516 if (!cb->args[0]) {
517 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
518 nl80211_fam.attrbuf, nl80211_fam.maxattr,
519 nl80211_policy);
520 if (err)
521 goto out_unlock;
67748893 522
97990a06
JB		 523 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
524 nl80211_fam.attrbuf);
525 if (IS_ERR(*wdev)) {
526 err = PTR_ERR(*wdev);
527 goto out_unlock;
528 }
f26cbf40 529 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 530 /* 0 is the first index - add 1 to parse only once */
531 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 532 cb->args[1] = (*wdev)->identifier;
533 } else {
c319d50b
JB		 534 /* subtract the 1 again here */
535 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 536 struct wireless_dev *tmp;
67748893 537
97990a06
JB		 538 if (!wiphy) {
539 err = -ENODEV;
540 goto out_unlock;
541 }
f26cbf40 542 *rdev = wiphy_to_rdev(wiphy);
97990a06 543 *wdev = NULL;
67748893 544
53873f13 545 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
97990a06
JB		 546 if (tmp->identifier == cb->args[1]) {
547 *wdev = tmp;
548 break;
549 }
550 }
67748893 551
97990a06
JB		 552 if (!*wdev) {
553 err = -ENODEV;
554 goto out_unlock;
555 }
67748893
JB		 556 }
557
67748893 558 return 0;
97990a06 559 out_unlock:
67748893
JB		 560 rtnl_unlock();
561 return err;
562}
563
97990a06 564static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 565{
67748893
JB		 566 rtnl_unlock();
567}
568
f4a11bb0
JB		 569/* IE validation */
570static bool is_valid_ie_attr(const struct nlattr *attr)
571{
572 const u8 *pos;
573 int len;
574
575 if (!attr)
576 return true;
577
578 pos = nla_data(attr);
579 len = nla_len(attr);
580
581 while (len) {
582 u8 elemlen;
583
584 if (len < 2)
585 return false;
586 len -= 2;
587
588 elemlen = pos[1];
589 if (elemlen > len)
590 return false;
591
592 len -= elemlen;
593 pos += 2 + elemlen;
594 }
595
596 return true;
597}
598
55682965 599/* message building helper */
15e47304 600static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 601 int flags, u8 cmd)
602{
603 /* since there is no private header just add the generic one */
15e47304 604 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 605}
606
5dab3b8a 607static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 608 struct ieee80211_channel *chan,
609 bool large)
5dab3b8a 610{
ea077c1c
RL		 611 /* Some channels must be completely excluded from the
612 * list to protect old user-space tools from breaking
613 */
614 if (!large && chan->flags &
615 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
616 return 0;
617
9360ffd1
DM		 618 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
619 chan->center_freq))
620 goto nla_put_failure;
5dab3b8a 621
9360ffd1
DM		 622 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
623 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
624 goto nla_put_failure;
8fe02e16
LR		 625 if (chan->flags & IEEE80211_CHAN_NO_IR) {
626 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
627 goto nla_put_failure;
628 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
629 goto nla_put_failure;
630 }
cdc89b97
JB		 631 if (chan->flags & IEEE80211_CHAN_RADAR) {
632 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
633 goto nla_put_failure;
634 if (large) {
635 u32 time;
636
637 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
638
639 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
640 chan->dfs_state))
641 goto nla_put_failure;
642 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
643 time))
644 goto nla_put_failure;
089027e5
JD		 645 if (nla_put_u32(msg,
646 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
647 chan->dfs_cac_ms))
648 goto nla_put_failure;
cdc89b97
JB		 649 }
650 }
5dab3b8a 651
fe1abafd
JB		 652 if (large) {
653 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
654 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
655 goto nla_put_failure;
656 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
657 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
658 goto nla_put_failure;
659 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
660 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
661 goto nla_put_failure;
662 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
663 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
664 goto nla_put_failure;
570dbde1
DS		 665 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
666 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
667 goto nla_put_failure;
06f207fc
AN		 668 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
669 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 670 goto nla_put_failure;
ea077c1c
RL		 671 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
672 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
673 goto nla_put_failure;
674 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
675 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
676 goto nla_put_failure;
fe1abafd
JB		 677 }
678
9360ffd1
DM		 679 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
680 DBM_TO_MBM(chan->max_power)))
681 goto nla_put_failure;
5dab3b8a
LR		 682
683 return 0;
684
685 nla_put_failure:
686 return -ENOBUFS;
687}
688
55682965
JB		 689/* netlink command implementations */
690
b9454e83
JB		 691struct key_parse {
692 struct key_params p;
693 int idx;
e31b8213 694 int type;
b9454e83 695 bool def, defmgmt;
dbd2fd65 696 bool def_uni, def_multi;
b9454e83
JB		 697};
698
699static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
700{
701 struct nlattr *tb[NL80211_KEY_MAX + 1];
702 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
703 nl80211_key_policy);
704 if (err)
705 return err;
706
707 k->def = !!tb[NL80211_KEY_DEFAULT];
708 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
709
dbd2fd65
JB		 710 if (k->def) {
711 k->def_uni = true;
712 k->def_multi = true;
713 }
714 if (k->defmgmt)
715 k->def_multi = true;
716
b9454e83
JB		 717 if (tb[NL80211_KEY_IDX])
718 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
719
720 if (tb[NL80211_KEY_DATA]) {
721 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
722 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
723 }
724
725 if (tb[NL80211_KEY_SEQ]) {
726 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
727 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
728 }
729
730 if (tb[NL80211_KEY_CIPHER])
731 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
732
e31b8213
JB		 733 if (tb[NL80211_KEY_TYPE]) {
734 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
735 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
736 return -EINVAL;
737 }
738
dbd2fd65
JB		 739 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
740 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
7a087e74 741
2da8f419
JB		 742 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
743 tb[NL80211_KEY_DEFAULT_TYPES],
744 nl80211_key_default_policy);
dbd2fd65
JB		 745 if (err)
746 return err;
747
748 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
749 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
750 }
751
b9454e83
JB		 752 return 0;
753}
754
755static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
756{
757 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
758 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
759 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
760 }
761
762 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
763 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
764 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
765 }
766
767 if (info->attrs[NL80211_ATTR_KEY_IDX])
768 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
769
770 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
771 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
772
773 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
774 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
775
dbd2fd65
JB		 776 if (k->def) {
777 k->def_uni = true;
778 k->def_multi = true;
779 }
780 if (k->defmgmt)
781 k->def_multi = true;
782
e31b8213
JB		 783 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
784 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
785 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
786 return -EINVAL;
787 }
788
dbd2fd65
JB		 789 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
790 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
791 int err = nla_parse_nested(
792 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
793 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
794 nl80211_key_default_policy);
795 if (err)
796 return err;
797
798 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
799 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
800 }
801
b9454e83
JB		 802 return 0;
803}
804
805static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
806{
807 int err;
808
809 memset(k, 0, sizeof(*k));
810 k->idx = -1;
e31b8213 811 k->type = -1;
b9454e83
JB		 812
813 if (info->attrs[NL80211_ATTR_KEY])
814 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
815 else
816 err = nl80211_parse_key_old(info, k);
817
818 if (err)
819 return err;
820
821 if (k->def && k->defmgmt)
822 return -EINVAL;
823
dbd2fd65
JB		 824 if (k->defmgmt) {
825 if (k->def_uni || !k->def_multi)
826 return -EINVAL;
827 }
828
b9454e83
JB		 829 if (k->idx != -1) {
830 if (k->defmgmt) {
831 if (k->idx < 4 || k->idx > 5)
832 return -EINVAL;
833 } else if (k->def) {
834 if (k->idx < 0 || k->idx > 3)
835 return -EINVAL;
836 } else {
837 if (k->idx < 0 || k->idx > 5)
838 return -EINVAL;
839 }
840 }
841
842 return 0;
843}
844
fffd0934
JB		 845static struct cfg80211_cached_keys *
846nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 847 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 848{
849 struct key_parse parse;
850 struct nlattr *key;
851 struct cfg80211_cached_keys *result;
852 int rem, err, def = 0;
f1c1f17a
JB		 853 bool have_key = false;
854
855 nla_for_each_nested(key, keys, rem) {
856 have_key = true;
857 break;
858 }
859
860 if (!have_key)
861 return NULL;
fffd0934
JB		 862
863 result = kzalloc(sizeof(*result), GFP_KERNEL);
864 if (!result)
865 return ERR_PTR(-ENOMEM);
866
867 result->def = -1;
fffd0934
JB		 868
869 nla_for_each_nested(key, keys, rem) {
870 memset(&parse, 0, sizeof(parse));
871 parse.idx = -1;
872
873 err = nl80211_parse_key_new(key, &parse);
874 if (err)
875 goto error;
876 err = -EINVAL;
877 if (!parse.p.key)
878 goto error;
42ee231c 879 if (parse.idx < 0 || parse.idx > 3)
fffd0934
JB		 880 goto error;
881 if (parse.def) {
882 if (def)
883 goto error;
884 def = 1;
885 result->def = parse.idx;
dbd2fd65
JB		 886 if (!parse.def_uni || !parse.def_multi)
887 goto error;
fffd0934
JB		 888 } else if (parse.defmgmt)
889 goto error;
890 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 891 parse.idx, false, NULL);
fffd0934
JB		 892 if (err)
893 goto error;
386b1f27
JB		 894 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
895 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
896 err = -EINVAL;
897 goto error;
898 }
fffd0934
JB		 899 result->params[parse.idx].cipher = parse.p.cipher;
900 result->params[parse.idx].key_len = parse.p.key_len;
901 result->params[parse.idx].key = result->data[parse.idx];
902 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee 903
386b1f27
JB		 904 /* must be WEP key if we got here */
905 if (no_ht)
906 *no_ht = true;
fffd0934
JB		 907 }
908
f1c1f17a
JB		 909 if (result->def < 0) {
910 err = -EINVAL;
911 goto error;
912 }
913
fffd0934
JB		 914 return result;
915 error:
916 kfree(result);
917 return ERR_PTR(err);
918}
919
920static int nl80211_key_allowed(struct wireless_dev *wdev)
921{
922 ASSERT_WDEV_LOCK(wdev);
923
fffd0934
JB		 924 switch (wdev->iftype) {
925 case NL80211_IFTYPE_AP:
926 case NL80211_IFTYPE_AP_VLAN:
074ac8df 927 case NL80211_IFTYPE_P2P_GO:
ff973af7 928 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 929 break;
930 case NL80211_IFTYPE_ADHOC:
fffd0934 931 case NL80211_IFTYPE_STATION:
074ac8df 932 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 933 if (!wdev->current_bss)
fffd0934
JB		 934 return -ENOLINK;
935 break;
de4fcbad 936 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 937 case NL80211_IFTYPE_OCB:
de4fcbad 938 case NL80211_IFTYPE_MONITOR:
cb3b7d87 939 case NL80211_IFTYPE_NAN:
de4fcbad
JB		 940 case NL80211_IFTYPE_P2P_DEVICE:
941 case NL80211_IFTYPE_WDS:
942 case NUM_NL80211_IFTYPES:
fffd0934
JB		 943 return -EINVAL;
944 }
945
946 return 0;
947}
948
664834de
JM		 949static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
950 struct nlattr *tb)
951{
952 struct ieee80211_channel *chan;
953
954 if (tb == NULL)
955 return NULL;
956 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
957 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
958 return NULL;
959 return chan;
960}
961
7527a782
JB		 962static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
963{
964 struct nlattr *nl_modes = nla_nest_start(msg, attr);
965 int i;
966
967 if (!nl_modes)
968 goto nla_put_failure;
969
970 i = 0;
971 while (ifmodes) {
9360ffd1
DM		 972 if ((ifmodes & 1) && nla_put_flag(msg, i))
973 goto nla_put_failure;
7527a782
JB		 974 ifmodes >>= 1;
975 i++;
976 }
977
978 nla_nest_end(msg, nl_modes);
979 return 0;
980
981nla_put_failure:
982 return -ENOBUFS;
983}
984
985static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 986 struct sk_buff *msg,
987 bool large)
7527a782
JB		 988{
989 struct nlattr *nl_combis;
990 int i, j;
991
992 nl_combis = nla_nest_start(msg,
993 NL80211_ATTR_INTERFACE_COMBINATIONS);
994 if (!nl_combis)
995 goto nla_put_failure;
996
997 for (i = 0; i < wiphy->n_iface_combinations; i++) {
998 const struct ieee80211_iface_combination *c;
999 struct nlattr *nl_combi, *nl_limits;
1000
1001 c = &wiphy->iface_combinations[i];
1002
1003 nl_combi = nla_nest_start(msg, i + 1);
1004 if (!nl_combi)
1005 goto nla_put_failure;
1006
1007 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1008 if (!nl_limits)
1009 goto nla_put_failure;
1010
1011 for (j = 0; j < c->n_limits; j++) {
1012 struct nlattr *nl_limit;
1013
1014 nl_limit = nla_nest_start(msg, j + 1);
1015 if (!nl_limit)
1016 goto nla_put_failure;
9360ffd1
DM		 1017 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1018 c->limits[j].max))
1019 goto nla_put_failure;
7527a782
JB		 1020 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1021 c->limits[j].types))
1022 goto nla_put_failure;
1023 nla_nest_end(msg, nl_limit);
1024 }
1025
1026 nla_nest_end(msg, nl_limits);
1027
9360ffd1
DM		 1028 if (c->beacon_int_infra_match &&
1029 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1030 goto nla_put_failure;
1031 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1032 c->num_different_channels) ||
1033 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1034 c->max_interfaces))
1035 goto nla_put_failure;
cdc89b97 1036 if (large &&
8c48b50a
FF		 1037 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1038 c->radar_detect_widths) ||
1039 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1040 c->radar_detect_regions)))
cdc89b97 1041 goto nla_put_failure;
7527a782
JB		 1042
1043 nla_nest_end(msg, nl_combi);
1044 }
1045
1046 nla_nest_end(msg, nl_combis);
1047
1048 return 0;
1049nla_put_failure:
1050 return -ENOBUFS;
1051}
1052
3713b4e3 1053#ifdef CONFIG_PM
b56cf720
JB		 1054static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1055 struct sk_buff *msg)
1056{
964dc9e2 1057 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1058 struct nlattr *nl_tcp;
1059
1060 if (!tcp)
1061 return 0;
1062
1063 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1064 if (!nl_tcp)
1065 return -ENOBUFS;
1066
1067 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1068 tcp->data_payload_max))
1069 return -ENOBUFS;
1070
1071 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1072 tcp->data_payload_max))
1073 return -ENOBUFS;
1074
1075 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1076 return -ENOBUFS;
1077
1078 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1079 sizeof(*tcp->tok), tcp->tok))
1080 return -ENOBUFS;
1081
1082 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1083 tcp->data_interval_max))
1084 return -ENOBUFS;
1085
1086 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1087 tcp->wake_payload_max))
1088 return -ENOBUFS;
1089
1090 nla_nest_end(msg, nl_tcp);
1091 return 0;
1092}
1093
3713b4e3 1094static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1095 struct cfg80211_registered_device *rdev,
b56cf720 1096 bool large)
55682965 1097{
3713b4e3 1098 struct nlattr *nl_wowlan;
55682965 1099
1b8ec87a 1100 if (!rdev->wiphy.wowlan)
3713b4e3 1101 return 0;
55682965 1102
3713b4e3
JB		 1103 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1104 if (!nl_wowlan)
1105 return -ENOBUFS;
9360ffd1 1106
1b8ec87a 1107 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1108 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1109 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1110 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1111 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1112 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1113 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1114 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1115 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1116 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1117 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1118 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1119 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1120 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1121 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1122 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1123 return -ENOBUFS;
9360ffd1 1124
1b8ec87a 1125 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1126 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1127 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1128 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1129 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1130 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1131 };
9360ffd1 1132
3713b4e3
JB		 1133 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1134 sizeof(pat), &pat))
1135 return -ENOBUFS;
1136 }
9360ffd1 1137
75453ccb
LC		 1138 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1139 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1140 rdev->wiphy.wowlan->max_nd_match_sets))
1141 return -ENOBUFS;
1142
1b8ec87a 1143 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1144 return -ENOBUFS;
1145
3713b4e3 1146 nla_nest_end(msg, nl_wowlan);
9360ffd1 1147
3713b4e3
JB		 1148 return 0;
1149}
1150#endif
9360ffd1 1151
be29b99a 1152static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1153 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1154{
1155 struct nl80211_coalesce_rule_support rule;
1156
1b8ec87a 1157 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1158 return 0;
1159
1b8ec87a
ZG		 1160 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1161 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1162 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1163 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1164 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1165 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1166
1167 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1168 return -ENOBUFS;
1169
1170 return 0;
1171}
1172
3713b4e3
JB		 1173static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1174 struct ieee80211_supported_band *sband)
1175{
1176 struct nlattr *nl_rates, *nl_rate;
1177 struct ieee80211_rate *rate;
1178 int i;
87bbbe22 1179
3713b4e3
JB		 1180 /* add HT info */
1181 if (sband->ht_cap.ht_supported &&
1182 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1183 sizeof(sband->ht_cap.mcs),
1184 &sband->ht_cap.mcs) ||
1185 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1186 sband->ht_cap.cap) ||
1187 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1188 sband->ht_cap.ampdu_factor) ||
1189 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1190 sband->ht_cap.ampdu_density)))
1191 return -ENOBUFS;
afe0cbf8 1192
3713b4e3
JB		 1193 /* add VHT info */
1194 if (sband->vht_cap.vht_supported &&
1195 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1196 sizeof(sband->vht_cap.vht_mcs),
1197 &sband->vht_cap.vht_mcs) ||
1198 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1199 sband->vht_cap.cap)))
1200 return -ENOBUFS;
f59ac048 1201
3713b4e3
JB		 1202 /* add bitrates */
1203 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1204 if (!nl_rates)
1205 return -ENOBUFS;
ee688b00 1206
3713b4e3
JB		 1207 for (i = 0; i < sband->n_bitrates; i++) {
1208 nl_rate = nla_nest_start(msg, i);
1209 if (!nl_rate)
1210 return -ENOBUFS;
ee688b00 1211
3713b4e3
JB		 1212 rate = &sband->bitrates[i];
1213 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1214 rate->bitrate))
1215 return -ENOBUFS;
1216 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1217 nla_put_flag(msg,
1218 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1219 return -ENOBUFS;
ee688b00 1220
3713b4e3
JB		 1221 nla_nest_end(msg, nl_rate);
1222 }
d51626df 1223
3713b4e3 1224 nla_nest_end(msg, nl_rates);
bf0c111e 1225
3713b4e3
JB		 1226 return 0;
1227}
ee688b00 1228
3713b4e3
JB		 1229static int
1230nl80211_send_mgmt_stypes(struct sk_buff *msg,
1231 const struct ieee80211_txrx_stypes *mgmt_stypes)
1232{
1233 u16 stypes;
1234 struct nlattr *nl_ftypes, *nl_ifs;
1235 enum nl80211_iftype ift;
1236 int i;
ee688b00 1237
3713b4e3
JB		 1238 if (!mgmt_stypes)
1239 return 0;
5dab3b8a 1240
3713b4e3
JB		 1241 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1242 if (!nl_ifs)
1243 return -ENOBUFS;
e2f367f2 1244
3713b4e3
JB		 1245 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1246 nl_ftypes = nla_nest_start(msg, ift);
1247 if (!nl_ftypes)
1248 return -ENOBUFS;
1249 i = 0;
1250 stypes = mgmt_stypes[ift].tx;
1251 while (stypes) {
1252 if ((stypes & 1) &&
1253 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1254 (i << 4) | IEEE80211_FTYPE_MGMT))
1255 return -ENOBUFS;
1256 stypes >>= 1;
1257 i++;
ee688b00 1258 }
3713b4e3
JB		 1259 nla_nest_end(msg, nl_ftypes);
1260 }
ee688b00 1261
3713b4e3 1262 nla_nest_end(msg, nl_ifs);
ee688b00 1263
3713b4e3
JB		 1264 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1265 if (!nl_ifs)
1266 return -ENOBUFS;
ee688b00 1267
3713b4e3
JB		 1268 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1269 nl_ftypes = nla_nest_start(msg, ift);
1270 if (!nl_ftypes)
1271 return -ENOBUFS;
1272 i = 0;
1273 stypes = mgmt_stypes[ift].rx;
1274 while (stypes) {
1275 if ((stypes & 1) &&
1276 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1277 (i << 4) | IEEE80211_FTYPE_MGMT))
1278 return -ENOBUFS;
1279 stypes >>= 1;
1280 i++;
1281 }
1282 nla_nest_end(msg, nl_ftypes);
1283 }
1284 nla_nest_end(msg, nl_ifs);
ee688b00 1285
3713b4e3
JB		 1286 return 0;
1287}
ee688b00 1288
86e8cf98
JB		 1289struct nl80211_dump_wiphy_state {
1290 s64 filter_wiphy;
1291 long start;
019ae3a9 1292 long split_start, band_start, chan_start, capa_start;
86e8cf98
JB		 1293 bool split;
1294};
1295
1b8ec87a 1296static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1297 enum nl80211_commands cmd,
3713b4e3 1298 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1299 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1300{
1301 void *hdr;
1302 struct nlattr *nl_bands, *nl_band;
1303 struct nlattr *nl_freqs, *nl_freq;
1304 struct nlattr *nl_cmds;
57fbcce3 1305 enum nl80211_band band;
3713b4e3
JB		 1306 struct ieee80211_channel *chan;
1307 int i;
1308 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1309 rdev->wiphy.mgmt_stypes;
fe1abafd 1310 u32 features;
ee688b00 1311
3bb20556 1312 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1313 if (!hdr)
1314 return -ENOBUFS;
ee688b00 1315
86e8cf98
JB		 1316 if (WARN_ON(!state))
1317 return -EINVAL;
ee688b00 1318
1b8ec87a 1319 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1320 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1321 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1322 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1323 cfg80211_rdev_list_generation))
8fdc621d
JB		 1324 goto nla_put_failure;
1325
3bb20556
JB		 1326 if (cmd != NL80211_CMD_NEW_WIPHY)
1327 goto finish;
1328
86e8cf98 1329 switch (state->split_start) {
3713b4e3
JB		 1330 case 0:
1331 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1332 rdev->wiphy.retry_short) ||
3713b4e3 1333 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1334 rdev->wiphy.retry_long) ||
3713b4e3 1335 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1336 rdev->wiphy.frag_threshold) ||
3713b4e3 1337 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1338 rdev->wiphy.rts_threshold) ||
3713b4e3 1339 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1340 rdev->wiphy.coverage_class) ||
3713b4e3 1341 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1342 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1343 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1344 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1345 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1346 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1347 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1348 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1349 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1350 rdev->wiphy.max_match_sets) ||
1351 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1352 rdev->wiphy.max_sched_scan_plans) ||
1353 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1354 rdev->wiphy.max_sched_scan_plan_interval) ||
1355 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1356 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1357 goto nla_put_failure;
3713b4e3 1358
1b8ec87a 1359 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1360 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1361 goto nla_put_failure;
1b8ec87a 1362 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1363 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1364 goto nla_put_failure;
1b8ec87a 1365 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1366 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1367 goto nla_put_failure;
1b8ec87a 1368 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1369 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1370 goto nla_put_failure;
1b8ec87a 1371 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1372 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1373 goto nla_put_failure;
1b8ec87a 1374 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1375 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1376 goto nla_put_failure;
86e8cf98
JB		 1377 state->split_start++;
1378 if (state->split)
3713b4e3
JB		 1379 break;
1380 case 1:
1381 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1382 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1383 rdev->wiphy.cipher_suites))
3713b4e3 1384 goto nla_put_failure;
4745fc09 1385
3713b4e3 1386 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1387 rdev->wiphy.max_num_pmkids))
3713b4e3 1388 goto nla_put_failure;
b23aa676 1389
1b8ec87a 1390 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1391 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1392 goto nla_put_failure;
b23aa676 1393
3713b4e3 1394 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1395 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1396 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1397 rdev->wiphy.available_antennas_rx))
9360ffd1 1398 goto nla_put_failure;
b23aa676 1399
1b8ec87a 1400 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1401 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1402 rdev->wiphy.probe_resp_offload))
3713b4e3 1403 goto nla_put_failure;
8fdc621d 1404
1b8ec87a
ZG		 1405 if ((rdev->wiphy.available_antennas_tx ||
1406 rdev->wiphy.available_antennas_rx) &&
1407 rdev->ops->get_antenna) {
3713b4e3
JB		 1408 u32 tx_ant = 0, rx_ant = 0;
1409 int res;
7a087e74 1410
1b8ec87a 1411 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1412 if (!res) {
1413 if (nla_put_u32(msg,
1414 NL80211_ATTR_WIPHY_ANTENNA_TX,
1415 tx_ant) ||
1416 nla_put_u32(msg,
1417 NL80211_ATTR_WIPHY_ANTENNA_RX,
1418 rx_ant))
1419 goto nla_put_failure;
1420 }
1421 }
a293911d 1422
86e8cf98
JB		 1423 state->split_start++;
1424 if (state->split)
3713b4e3
JB		 1425 break;
1426 case 2:
1427 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1428 rdev->wiphy.interface_modes))
3713b4e3 1429 goto nla_put_failure;
86e8cf98
JB		 1430 state->split_start++;
1431 if (state->split)
3713b4e3
JB		 1432 break;
1433 case 3:
1434 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1435 if (!nl_bands)
1436 goto nla_put_failure;
f7ca38df 1437
86e8cf98 1438 for (band = state->band_start;
57fbcce3 1439 band < NUM_NL80211_BANDS; band++) {
3713b4e3 1440 struct ieee80211_supported_band *sband;
2e161f78 1441
1b8ec87a 1442 sband = rdev->wiphy.bands[band];
2e161f78 1443
3713b4e3
JB		 1444 if (!sband)
1445 continue;
1446
1447 nl_band = nla_nest_start(msg, band);
1448 if (!nl_band)
2e161f78 1449 goto nla_put_failure;
3713b4e3 1450
86e8cf98 1451 switch (state->chan_start) {
3713b4e3
JB		 1452 case 0:
1453 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1454 goto nla_put_failure;
86e8cf98
JB		 1455 state->chan_start++;
1456 if (state->split)
3713b4e3
JB		 1457 break;
1458 default:
1459 /* add frequencies */
1460 nl_freqs = nla_nest_start(
1461 msg, NL80211_BAND_ATTR_FREQS);
1462 if (!nl_freqs)
1463 goto nla_put_failure;
1464
86e8cf98 1465 for (i = state->chan_start - 1;
3713b4e3
JB		 1466 i < sband->n_channels;
1467 i++) {
1468 nl_freq = nla_nest_start(msg, i);
1469 if (!nl_freq)
1470 goto nla_put_failure;
1471
1472 chan = &sband->channels[i];
1473
86e8cf98
JB		 1474 if (nl80211_msg_put_channel(
1475 msg, chan,
1476 state->split))
3713b4e3
JB		 1477 goto nla_put_failure;
1478
1479 nla_nest_end(msg, nl_freq);
86e8cf98 1480 if (state->split)
3713b4e3
JB		 1481 break;
1482 }
1483 if (i < sband->n_channels)
86e8cf98 1484 state->chan_start = i + 2;
3713b4e3 1485 else
86e8cf98 1486 state->chan_start = 0;
3713b4e3
JB		 1487 nla_nest_end(msg, nl_freqs);
1488 }
1489
1490 nla_nest_end(msg, nl_band);
1491
86e8cf98 1492 if (state->split) {
3713b4e3 1493 /* start again here */
86e8cf98 1494 if (state->chan_start)
3713b4e3
JB		 1495 band--;
1496 break;
2e161f78 1497 }
2e161f78 1498 }
3713b4e3 1499 nla_nest_end(msg, nl_bands);
2e161f78 1500
57fbcce3 1501 if (band < NUM_NL80211_BANDS)
86e8cf98 1502 state->band_start = band + 1;
3713b4e3 1503 else
86e8cf98 1504 state->band_start = 0;
74b70a4e 1505
3713b4e3 1506 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1507 if (state->band_start == 0 && state->chan_start == 0)
1508 state->split_start++;
1509 if (state->split)
3713b4e3
JB		 1510 break;
1511 case 4:
1512 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1513 if (!nl_cmds)
2e161f78
JB		 1514 goto nla_put_failure;
1515
3713b4e3
JB		 1516 i = 0;
1517#define CMD(op, n) \
1518 do { \
1b8ec87a 1519 if (rdev->ops->op) { \
3713b4e3
JB		 1520 i++; \
1521 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1522 goto nla_put_failure; \
1523 } \
1524 } while (0)
1525
1526 CMD(add_virtual_intf, NEW_INTERFACE);
1527 CMD(change_virtual_intf, SET_INTERFACE);
1528 CMD(add_key, NEW_KEY);
1529 CMD(start_ap, START_AP);
1530 CMD(add_station, NEW_STATION);
1531 CMD(add_mpath, NEW_MPATH);
1532 CMD(update_mesh_config, SET_MESH_CONFIG);
1533 CMD(change_bss, SET_BSS);
1534 CMD(auth, AUTHENTICATE);
1535 CMD(assoc, ASSOCIATE);
1536 CMD(deauth, DEAUTHENTICATE);
1537 CMD(disassoc, DISASSOCIATE);
1538 CMD(join_ibss, JOIN_IBSS);
1539 CMD(join_mesh, JOIN_MESH);
1540 CMD(set_pmksa, SET_PMKSA);
1541 CMD(del_pmksa, DEL_PMKSA);
1542 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1543 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1544 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1545 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1546 CMD(mgmt_tx, FRAME);
1547 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1548 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1549 i++;
1550 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1551 goto nla_put_failure;
2e161f78 1552 }
1b8ec87a
ZG		 1553 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1554 rdev->ops->join_mesh) {
3713b4e3
JB		 1555 i++;
1556 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1557 goto nla_put_failure;
1558 }
1559 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1560 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1561 CMD(tdls_mgmt, TDLS_MGMT);
1562 CMD(tdls_oper, TDLS_OPER);
1563 }
1b8ec87a 1564 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1565 CMD(sched_scan_start, START_SCHED_SCAN);
1566 CMD(probe_client, PROBE_CLIENT);
1567 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1568 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1569 i++;
1570 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1571 goto nla_put_failure;
1572 }
1573 CMD(start_p2p_device, START_P2P_DEVICE);
1574 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1575#ifdef CONFIG_NL80211_TESTMODE
1576 CMD(testmode_cmd, TESTMODE);
1577#endif
86e8cf98 1578 if (state->split) {
5de17984
AS		 1579 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1580 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1581 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1582 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1583 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1584 if (rdev->wiphy.features &
1585 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1586 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1587 }
02df00eb 1588 /* add into the if now */
3713b4e3 1589#undef CMD
ff1b6e69 1590
1b8ec87a 1591 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1592 i++;
1593 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1594 goto nla_put_failure;
ff1b6e69
JB		 1595 }
1596
1b8ec87a 1597 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1598 i++;
1599 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1600 goto nla_put_failure;
1601 }
1602
1603 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1604 state->split_start++;
1605 if (state->split)
3713b4e3
JB		 1606 break;
1607 case 5:
1b8ec87a
ZG		 1608 if (rdev->ops->remain_on_channel &&
1609 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1610 nla_put_u32(msg,
1611 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1612 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1613 goto nla_put_failure;
1614
1b8ec87a 1615 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1616 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1617 goto nla_put_failure;
1618
1619 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1620 goto nla_put_failure;
86e8cf98
JB		 1621 state->split_start++;
1622 if (state->split)
3713b4e3
JB		 1623 break;
1624 case 6:
1625#ifdef CONFIG_PM
1b8ec87a 1626 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1627 goto nla_put_failure;
86e8cf98
JB		 1628 state->split_start++;
1629 if (state->split)
3713b4e3
JB		 1630 break;
1631#else
86e8cf98 1632 state->split_start++;
dfb89c56 1633#endif
3713b4e3
JB		 1634 case 7:
1635 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1636 rdev->wiphy.software_iftypes))
3713b4e3 1637 goto nla_put_failure;
ff1b6e69 1638
1b8ec87a 1639 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1640 state->split))
3713b4e3 1641 goto nla_put_failure;
7527a782 1642
86e8cf98
JB		 1643 state->split_start++;
1644 if (state->split)
3713b4e3
JB		 1645 break;
1646 case 8:
1b8ec87a 1647 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1648 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1649 rdev->wiphy.ap_sme_capa))
3713b4e3 1650 goto nla_put_failure;
7527a782 1651
1b8ec87a 1652 features = rdev->wiphy.features;
fe1abafd
JB		 1653 /*
1654 * We can only add the per-channel limit information if the
1655 * dump is split, otherwise it makes it too big. Therefore
1656 * only advertise it in that case.
1657 */
86e8cf98 1658 if (state->split)
fe1abafd
JB		 1659 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1660 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1661 goto nla_put_failure;
562a7480 1662
1b8ec87a 1663 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1664 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1665 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1666 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1667 goto nla_put_failure;
1f074bd8 1668
1b8ec87a
ZG		 1669 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1670 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1671 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1672 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1673 goto nla_put_failure;
7e7c8926 1674
3713b4e3
JB		 1675 /*
1676 * Any information below this point is only available to
1677 * applications that can deal with it being split. This
1678 * helps ensure that newly added capabilities don't break
1679 * older tools by overrunning their buffers.
1680 *
1681 * We still increment split_start so that in the split
1682 * case we'll continue with more data in the next round,
1683 * but break unconditionally so unsplit data stops here.
1684 */
86e8cf98 1685 state->split_start++;
3713b4e3
JB		 1686 break;
1687 case 9:
1b8ec87a 1688 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1689 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1690 rdev->wiphy.extended_capabilities_len,
1691 rdev->wiphy.extended_capabilities) ||
fe1abafd 1692 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1693 rdev->wiphy.extended_capabilities_len,
1694 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1695 goto nla_put_failure;
a50df0c4 1696
1b8ec87a 1697 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1698 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1699 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1700 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1701 goto nla_put_failure;
1702
be29b99a
AK		 1703 state->split_start++;
1704 break;
1705 case 10:
1b8ec87a 1706 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1707 goto nla_put_failure;
1708
1b8ec87a 1709 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1710 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1711 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1712 goto nla_put_failure;
b43504cf 1713
1b8ec87a 1714 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1715 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1716 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1717 goto nla_put_failure;
1718
ad7e718c
JB		 1719 state->split_start++;
1720 break;
1721 case 11:
1b8ec87a 1722 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1723 const struct nl80211_vendor_cmd_info *info;
1724 struct nlattr *nested;
1725
1726 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1727 if (!nested)
1728 goto nla_put_failure;
1729
1b8ec87a
ZG		 1730 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1731 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1732 if (nla_put(msg, i + 1, sizeof(*info), info))
1733 goto nla_put_failure;
1734 }
1735 nla_nest_end(msg, nested);
1736 }
1737
1b8ec87a 1738 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1739 const struct nl80211_vendor_cmd_info *info;
1740 struct nlattr *nested;
ad7e718c 1741
567ffc35
JB		 1742 nested = nla_nest_start(msg,
1743 NL80211_ATTR_VENDOR_EVENTS);
1744 if (!nested)
ad7e718c 1745 goto nla_put_failure;
567ffc35 1746
1b8ec87a
ZG		 1747 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1748 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1749 if (nla_put(msg, i + 1, sizeof(*info), info))
1750 goto nla_put_failure;
1751 }
1752 nla_nest_end(msg, nested);
1753 }
9a774c78
AO		 1754 state->split_start++;
1755 break;
1756 case 12:
1757 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1758 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1759 rdev->wiphy.max_num_csa_counters))
1760 goto nla_put_failure;
01e0daa4 1761
1bdd716c
AN		 1762 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1763 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1764 goto nla_put_failure;
1765
d75bb06b
GKS		 1766 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1767 sizeof(rdev->wiphy.ext_features),
1768 rdev->wiphy.ext_features))
1769 goto nla_put_failure;
1770
38de03d2
AS		 1771 if (rdev->wiphy.bss_select_support) {
1772 struct nlattr *nested;
1773 u32 bss_select_support = rdev->wiphy.bss_select_support;
1774
1775 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1776 if (!nested)
1777 goto nla_put_failure;
1778
1779 i = 0;
1780 while (bss_select_support) {
1781 if ((bss_select_support & 1) &&
1782 nla_put_flag(msg, i))
1783 goto nla_put_failure;
1784 i++;
1785 bss_select_support >>= 1;
1786 }
1787 nla_nest_end(msg, nested);
1788 }
1789
019ae3a9
KV		 1790 state->split_start++;
1791 break;
1792 case 13:
1793 if (rdev->wiphy.num_iftype_ext_capab &&
1794 rdev->wiphy.iftype_ext_capab) {
1795 struct nlattr *nested_ext_capab, *nested;
1796
1797 nested = nla_nest_start(msg,
1798 NL80211_ATTR_IFTYPE_EXT_CAPA);
1799 if (!nested)
1800 goto nla_put_failure;
1801
1802 for (i = state->capa_start;
1803 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1804 const struct wiphy_iftype_ext_capab *capab;
1805
1806 capab = &rdev->wiphy.iftype_ext_capab[i];
1807
1808 nested_ext_capab = nla_nest_start(msg, i);
1809 if (!nested_ext_capab ||
1810 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1811 capab->iftype) ||
1812 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1813 capab->extended_capabilities_len,
1814 capab->extended_capabilities) ||
1815 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1816 capab->extended_capabilities_len,
1817 capab->extended_capabilities_mask))
1818 goto nla_put_failure;
1819
1820 nla_nest_end(msg, nested_ext_capab);
1821 if (state->split)
1822 break;
1823 }
1824 nla_nest_end(msg, nested);
1825 if (i < rdev->wiphy.num_iftype_ext_capab) {
1826 state->capa_start = i + 1;
1827 break;
1828 }
1829 }
1830
3713b4e3 1831 /* done */
86e8cf98 1832 state->split_start = 0;
3713b4e3
JB		 1833 break;
1834 }
3bb20556 1835 finish:
053c095a
JB		 1836 genlmsg_end(msg, hdr);
1837 return 0;
55682965
JB		 1838
1839 nla_put_failure:
bc3ed28c
TG		 1840 genlmsg_cancel(msg, hdr);
1841 return -EMSGSIZE;
55682965
JB		 1842}
1843
86e8cf98
JB		 1844static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1845 struct netlink_callback *cb,
1846 struct nl80211_dump_wiphy_state *state)
1847{
1848 struct nlattr **tb = nl80211_fam.attrbuf;
1849 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1850 tb, nl80211_fam.maxattr, nl80211_policy);
1851 /* ignore parse errors for backward compatibility */
1852 if (ret)
1853 return 0;
1854
1855 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1856 if (tb[NL80211_ATTR_WIPHY])
1857 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1858 if (tb[NL80211_ATTR_WDEV])
1859 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1860 if (tb[NL80211_ATTR_IFINDEX]) {
1861 struct net_device *netdev;
1862 struct cfg80211_registered_device *rdev;
1863 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1864
7f2b8562 1865 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1866 if (!netdev)
1867 return -ENODEV;
1868 if (netdev->ieee80211_ptr) {
f26cbf40 1869 rdev = wiphy_to_rdev(
86e8cf98
JB		 1870 netdev->ieee80211_ptr->wiphy);
1871 state->filter_wiphy = rdev->wiphy_idx;
1872 }
86e8cf98
JB		 1873 }
1874
1875 return 0;
1876}
1877
55682965
JB		 1878static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1879{
645e77de 1880 int idx = 0, ret;
86e8cf98 1881 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1882 struct cfg80211_registered_device *rdev;
3a5a423b 1883
5fe231e8 1884 rtnl_lock();
86e8cf98
JB		 1885 if (!state) {
1886 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1887 if (!state) {
1888 rtnl_unlock();
86e8cf98 1889 return -ENOMEM;
3713b4e3 1890 }
86e8cf98
JB		 1891 state->filter_wiphy = -1;
1892 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1893 if (ret) {
1894 kfree(state);
1895 rtnl_unlock();
1896 return ret;
3713b4e3 1897 }
86e8cf98 1898 cb->args[0] = (long)state;
3713b4e3
JB		 1899 }
1900
1b8ec87a
ZG		 1901 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1902 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1903 continue;
86e8cf98 1904 if (++idx <= state->start)
55682965 1905 continue;
86e8cf98 1906 if (state->filter_wiphy != -1 &&
1b8ec87a 1907 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1908 continue;
1909 /* attempt to fit multiple wiphy data chunks into the skb */
1910 do {
3bb20556
JB		 1911 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1912 skb,
3713b4e3
JB		 1913 NETLINK_CB(cb->skb).portid,
1914 cb->nlh->nlmsg_seq,
86e8cf98 1915 NLM_F_MULTI, state);
3713b4e3
JB		 1916 if (ret < 0) {
1917 /*
1918 * If sending the wiphy data didn't fit (ENOBUFS
1919 * or EMSGSIZE returned), this SKB is still
1920 * empty (so it's not too big because another
1921 * wiphy dataset is already in the skb) and
1922 * we've not tried to adjust the dump allocation
1923 * yet ... then adjust the alloc size to be
1924 * bigger, and return 1 but with the empty skb.
1925 * This results in an empty message being RX'ed
1926 * in userspace, but that is ignored.
1927 *
1928 * We can then retry with the larger buffer.
1929 */
1930 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1931 !skb->len && !state->split &&
3713b4e3
JB		 1932 cb->min_dump_alloc < 4096) {
1933 cb->min_dump_alloc = 4096;
f12cb289 1934 state->split_start = 0;
d98cae64 1935 rtnl_unlock();
3713b4e3
JB		 1936 return 1;
1937 }
1938 idx--;
1939 break;
645e77de 1940 }
86e8cf98 1941 } while (state->split_start > 0);
3713b4e3 1942 break;
55682965 1943 }
5fe231e8 1944 rtnl_unlock();
55682965 1945
86e8cf98 1946 state->start = idx;
55682965
JB		 1947
1948 return skb->len;
1949}
1950
86e8cf98
JB		 1951static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1952{
1953 kfree((void *)cb->args[0]);
1954 return 0;
1955}
1956
55682965
JB		 1957static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1958{
1959 struct sk_buff *msg;
1b8ec87a 1960 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1961 struct nl80211_dump_wiphy_state state = {};
55682965 1962
645e77de 1963 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1964 if (!msg)
4c476991 1965 return -ENOMEM;
55682965 1966
3bb20556
JB		 1967 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1968 info->snd_portid, info->snd_seq, 0,
86e8cf98 1969 &state) < 0) {
4c476991
JB		 1970 nlmsg_free(msg);
1971 return -ENOBUFS;
1972 }
55682965 1973
134e6375 1974 return genlmsg_reply(msg, info);
55682965
JB		 1975}
1976
31888487
JM		 1977static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1978 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1979 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1980 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1981 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1982 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1983};
1984
1985static int parse_txq_params(struct nlattr *tb[],
1986 struct ieee80211_txq_params *txq_params)
1987{
a3304b0a 1988 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1989 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1990 !tb[NL80211_TXQ_ATTR_AIFS])
1991 return -EINVAL;
1992
a3304b0a 1993 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1994 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1995 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1996 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1997 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1998
a3304b0a
JB		 1999 if (txq_params->ac >= NL80211_NUM_ACS)
2000 return -EINVAL;
2001
31888487
JM		 2002 return 0;
2003}
2004
f444de05
JB		 2005static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2006{
2007 /*
cc1d2806
JB		 2008 * You can only set the channel explicitly for WDS interfaces,
2009 * all others have their channel managed via their respective
2010 * "establish a connection" command (connect, join, ...)
2011 *
2012 * For AP/GO and mesh mode, the channel can be set with the
2013 * channel userspace API, but is only stored and passed to the
2014 * low-level driver when the AP starts or the mesh is joined.
2015 * This is for backward compatibility, userspace can also give
2016 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 2017 *
2018 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 2019 * whatever else is going on, so they have their own special
2020 * operation to set the monitor channel if possible.
f444de05
JB		 2021 */
2022 return !wdev ||
2023 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 2024 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 2025 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2026 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 2027}
2028
683b6d3b
JB		 2029static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2030 struct genl_info *info,
2031 struct cfg80211_chan_def *chandef)
2032{
dbeca2ea 2033 u32 control_freq;
683b6d3b
JB		 2034
2035 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2036 return -EINVAL;
2037
2038 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2039
2040 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 2041 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2042 chandef->center_freq1 = control_freq;
2043 chandef->center_freq2 = 0;
683b6d3b
JB		 2044
2045 /* Primary channel not allowed */
2046 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2047 return -EINVAL;
2048
3d9d1d66
JB		 2049 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2050 enum nl80211_channel_type chantype;
2051
2052 chantype = nla_get_u32(
2053 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2054
2055 switch (chantype) {
2056 case NL80211_CHAN_NO_HT:
2057 case NL80211_CHAN_HT20:
2058 case NL80211_CHAN_HT40PLUS:
2059 case NL80211_CHAN_HT40MINUS:
2060 cfg80211_chandef_create(chandef, chandef->chan,
2061 chantype);
2062 break;
2063 default:
2064 return -EINVAL;
2065 }
2066 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2067 chandef->width =
2068 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2069 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2070 chandef->center_freq1 =
2071 nla_get_u32(
2072 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2073 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2074 chandef->center_freq2 =
2075 nla_get_u32(
2076 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2077 }
2078
9f5e8f6e 2079 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 2080 return -EINVAL;
2081
9f5e8f6e
JB		 2082 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2083 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 2084 return -EINVAL;
2085
2f301ab2
SW		 2086 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2087 chandef->width == NL80211_CHAN_WIDTH_10) &&
2088 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2089 return -EINVAL;
2090
683b6d3b
JB		 2091 return 0;
2092}
2093
f444de05 2094static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 2095 struct net_device *dev,
f444de05
JB		 2096 struct genl_info *info)
2097{
683b6d3b 2098 struct cfg80211_chan_def chandef;
f444de05 2099 int result;
e8c9bd5b 2100 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2101 struct wireless_dev *wdev = NULL;
e8c9bd5b 2102
e16821bc
JM		 2103 if (dev)
2104 wdev = dev->ieee80211_ptr;
f444de05
JB		 2105 if (!nl80211_can_set_dev_channel(wdev))
2106 return -EOPNOTSUPP;
e16821bc
JM		 2107 if (wdev)
2108 iftype = wdev->iftype;
f444de05 2109
683b6d3b
JB		 2110 result = nl80211_parse_chandef(rdev, info, &chandef);
2111 if (result)
2112 return result;
f444de05 2113
e8c9bd5b 2114 switch (iftype) {
aa430da4
JB		 2115 case NL80211_IFTYPE_AP:
2116 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2117 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2118 iftype)) {
aa430da4
JB		 2119 result = -EINVAL;
2120 break;
2121 }
e16821bc
JM		 2122 if (wdev->beacon_interval) {
2123 if (!dev || !rdev->ops->set_ap_chanwidth ||
2124 !(rdev->wiphy.features &
2125 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2126 result = -EBUSY;
2127 break;
2128 }
2129
2130 /* Only allow dynamic channel width changes */
2131 if (chandef.chan != wdev->preset_chandef.chan) {
2132 result = -EBUSY;
2133 break;
2134 }
2135 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2136 if (result)
2137 break;
2138 }
683b6d3b 2139 wdev->preset_chandef = chandef;
aa430da4
JB		 2140 result = 0;
2141 break;
cc1d2806 2142 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2143 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2144 break;
e8c9bd5b 2145 case NL80211_IFTYPE_MONITOR:
683b6d3b 2146 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2147 break;
aa430da4 2148 default:
e8c9bd5b 2149 result = -EINVAL;
f444de05 2150 }
f444de05
JB		 2151
2152 return result;
2153}
2154
2155static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2156{
4c476991
JB		 2157 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2158 struct net_device *netdev = info->user_ptr[1];
f444de05 2159
e16821bc 2160 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2161}
2162
e8347eba
BJ		 2163static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2164{
43b19952
JB		 2165 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2166 struct net_device *dev = info->user_ptr[1];
2167 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2168 const u8 *bssid;
e8347eba
BJ		 2169
2170 if (!info->attrs[NL80211_ATTR_MAC])
2171 return -EINVAL;
2172
43b19952
JB		 2173 if (netif_running(dev))
2174 return -EBUSY;
e8347eba 2175
43b19952
JB		 2176 if (!rdev->ops->set_wds_peer)
2177 return -EOPNOTSUPP;
e8347eba 2178
43b19952
JB		 2179 if (wdev->iftype != NL80211_IFTYPE_WDS)
2180 return -EOPNOTSUPP;
e8347eba
BJ		 2181
2182 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2183 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2184}
2185
55682965
JB		 2186static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2187{
2188 struct cfg80211_registered_device *rdev;
f444de05
JB		 2189 struct net_device *netdev = NULL;
2190 struct wireless_dev *wdev;
a1e567c8 2191 int result = 0, rem_txq_params = 0;
31888487 2192 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2193 u32 changed;
2194 u8 retry_short = 0, retry_long = 0;
2195 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2196 u8 coverage_class = 0;
55682965 2197
5fe231e8
JB		 2198 ASSERT_RTNL();
2199
f444de05
JB		 2200 /*
2201 * Try to find the wiphy and netdev. Normally this
2202 * function shouldn't need the netdev, but this is
2203 * done for backward compatibility -- previously
2204 * setting the channel was done per wiphy, but now
2205 * it is per netdev. Previous userland like hostapd
2206 * also passed a netdev to set_wiphy, so that it is
2207 * possible to let that go to the right netdev!
2208 */
4bbf4d56 2209
f444de05
JB		 2210 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2211 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2212
7f2b8562 2213 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2214 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2215 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2216 else
f444de05 2217 netdev = NULL;
4bbf4d56
JB		 2218 }
2219
f444de05 2220 if (!netdev) {
878d9ec7
JB		 2221 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2222 info->attrs);
5fe231e8 2223 if (IS_ERR(rdev))
4c476991 2224 return PTR_ERR(rdev);
f444de05
JB		 2225 wdev = NULL;
2226 netdev = NULL;
2227 result = 0;
71fe96bf 2228 } else
f444de05 2229 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2230
2231 /*
2232 * end workaround code, by now the rdev is available
2233 * and locked, and wdev may or may not be NULL.
2234 */
4bbf4d56
JB		 2235
2236 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2237 result = cfg80211_dev_rename(
2238 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2239
4bbf4d56 2240 if (result)
7f2b8562 2241 return result;
31888487
JM		 2242
2243 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2244 struct ieee80211_txq_params txq_params;
2245 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2246
7f2b8562
YX		 2247 if (!rdev->ops->set_txq_params)
2248 return -EOPNOTSUPP;
31888487 2249
7f2b8562
YX		 2250 if (!netdev)
2251 return -EINVAL;
f70f01c2 2252
133a3ff2 2253 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2254 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2255 return -EINVAL;
133a3ff2 2256
7f2b8562
YX		 2257 if (!netif_running(netdev))
2258 return -ENETDOWN;
2b5f8b0b 2259
31888487
JM		 2260 nla_for_each_nested(nl_txq_params,
2261 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2262 rem_txq_params) {
ae811e21
JB		 2263 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2264 nla_data(nl_txq_params),
2265 nla_len(nl_txq_params),
2266 txq_params_policy);
2267 if (result)
2268 return result;
31888487
JM		 2269 result = parse_txq_params(tb, &txq_params);
2270 if (result)
7f2b8562 2271 return result;
31888487 2272
e35e4d28
HG		 2273 result = rdev_set_txq_params(rdev, netdev,
2274 &txq_params);
31888487 2275 if (result)
7f2b8562 2276 return result;
31888487
JM		 2277 }
2278 }
55682965 2279
72bdcf34 2280 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2281 result = __nl80211_set_channel(
2282 rdev,
2283 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2284 info);
72bdcf34 2285 if (result)
7f2b8562 2286 return result;
72bdcf34
JM		 2287 }
2288
98d2ff8b 2289 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2290 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2291 enum nl80211_tx_power_setting type;
2292 int idx, mbm = 0;
2293
c8442118
JB		 2294 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2295 txp_wdev = NULL;
2296
7f2b8562
YX		 2297 if (!rdev->ops->set_tx_power)
2298 return -EOPNOTSUPP;
98d2ff8b
JO		 2299
2300 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2301 type = nla_get_u32(info->attrs[idx]);
2302
2303 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2304 (type != NL80211_TX_POWER_AUTOMATIC))
2305 return -EINVAL;
98d2ff8b
JO		 2306
2307 if (type != NL80211_TX_POWER_AUTOMATIC) {
2308 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2309 mbm = nla_get_u32(info->attrs[idx]);
2310 }
2311
c8442118 2312 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2313 if (result)
7f2b8562 2314 return result;
98d2ff8b
JO		 2315 }
2316
afe0cbf8
BR		 2317 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2318 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2319 u32 tx_ant, rx_ant;
7a087e74 2320
7f531e03
BR		 2321 if ((!rdev->wiphy.available_antennas_tx &&
2322 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2323 !rdev->ops->set_antenna)
2324 return -EOPNOTSUPP;
afe0cbf8
BR		 2325
2326 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2327 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2328
a7ffac95 2329 /* reject antenna configurations which don't match the
7f531e03
BR		 2330 * available antenna masks, except for the "all" mask */
2331 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2332 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2333 return -EINVAL;
a7ffac95 2334
7f531e03
BR		 2335 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2336 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2337
e35e4d28 2338 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2339 if (result)
7f2b8562 2340 return result;
afe0cbf8
BR		 2341 }
2342
b9a5f8ca
JM		 2343 changed = 0;
2344
2345 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2346 retry_short = nla_get_u8(
2347 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2348 if (retry_short == 0)
2349 return -EINVAL;
2350
b9a5f8ca
JM		 2351 changed |= WIPHY_PARAM_RETRY_SHORT;
2352 }
2353
2354 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2355 retry_long = nla_get_u8(
2356 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2357 if (retry_long == 0)
2358 return -EINVAL;
2359
b9a5f8ca
JM		 2360 changed |= WIPHY_PARAM_RETRY_LONG;
2361 }
2362
2363 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2364 frag_threshold = nla_get_u32(
2365 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2366 if (frag_threshold < 256)
2367 return -EINVAL;
2368
b9a5f8ca
JM		 2369 if (frag_threshold != (u32) -1) {
2370 /*
2371 * Fragments (apart from the last one) are required to
2372 * have even length. Make the fragmentation code
2373 * simpler by stripping LSB should someone try to use
2374 * odd threshold value.
2375 */
2376 frag_threshold &= ~0x1;
2377 }
2378 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2379 }
2380
2381 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2382 rts_threshold = nla_get_u32(
2383 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2384 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2385 }
2386
81077e82 2387 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2388 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2389 return -EINVAL;
2390
81077e82
LT		 2391 coverage_class = nla_get_u8(
2392 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2393 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2394 }
2395
3057dbfd
LB		 2396 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2397 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2398 return -EOPNOTSUPP;
2399
2400 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2401 }
2402
b9a5f8ca
JM		 2403 if (changed) {
2404 u8 old_retry_short, old_retry_long;
2405 u32 old_frag_threshold, old_rts_threshold;
81077e82 2406 u8 old_coverage_class;
b9a5f8ca 2407
7f2b8562
YX		 2408 if (!rdev->ops->set_wiphy_params)
2409 return -EOPNOTSUPP;
b9a5f8ca
JM		 2410
2411 old_retry_short = rdev->wiphy.retry_short;
2412 old_retry_long = rdev->wiphy.retry_long;
2413 old_frag_threshold = rdev->wiphy.frag_threshold;
2414 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2415 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2416
2417 if (changed & WIPHY_PARAM_RETRY_SHORT)
2418 rdev->wiphy.retry_short = retry_short;
2419 if (changed & WIPHY_PARAM_RETRY_LONG)
2420 rdev->wiphy.retry_long = retry_long;
2421 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2422 rdev->wiphy.frag_threshold = frag_threshold;
2423 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2424 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2425 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2426 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2427
e35e4d28 2428 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2429 if (result) {
2430 rdev->wiphy.retry_short = old_retry_short;
2431 rdev->wiphy.retry_long = old_retry_long;
2432 rdev->wiphy.frag_threshold = old_frag_threshold;
2433 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2434 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2435 return result;
b9a5f8ca
JM		 2436 }
2437 }
7f2b8562 2438 return 0;
55682965
JB		 2439}
2440
71bbc994
JB		 2441static inline u64 wdev_id(struct wireless_dev *wdev)
2442{
2443 return (u64)wdev->identifier |
f26cbf40 2444 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2445}
55682965 2446
683b6d3b 2447static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2448 const struct cfg80211_chan_def *chandef)
683b6d3b 2449{
601555cd
JB		 2450 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2451 return -EINVAL;
3d9d1d66 2452
683b6d3b
JB		 2453 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2454 chandef->chan->center_freq))
2455 return -ENOBUFS;
3d9d1d66
JB		 2456 switch (chandef->width) {
2457 case NL80211_CHAN_WIDTH_20_NOHT:
2458 case NL80211_CHAN_WIDTH_20:
2459 case NL80211_CHAN_WIDTH_40:
2460 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2461 cfg80211_get_chandef_type(chandef)))
2462 return -ENOBUFS;
2463 break;
2464 default:
2465 break;
2466 }
2467 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2468 return -ENOBUFS;
2469 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2470 return -ENOBUFS;
2471 if (chandef->center_freq2 &&
2472 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2473 return -ENOBUFS;
2474 return 0;
2475}
2476
15e47304 2477static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2478 struct cfg80211_registered_device *rdev,
8f894be2 2479 struct wireless_dev *wdev, bool removal)
55682965 2480{
72fb2abc 2481 struct net_device *dev = wdev->netdev;
8f894be2 2482 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2483 void *hdr;
2484
8f894be2
TB		 2485 if (removal)
2486 cmd = NL80211_CMD_DEL_INTERFACE;
2487
2488 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2489 if (!hdr)
2490 return -1;
2491
72fb2abc
JB		 2492 if (dev &&
2493 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2494 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2495 goto nla_put_failure;
2496
2497 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2498 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2dad624e
ND		 2499 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2500 NL80211_ATTR_PAD) ||
98104fde 2501 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2502 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2503 rdev->devlist_generation ^
2504 (cfg80211_rdev_list_generation << 2)))
2505 goto nla_put_failure;
f5ea9120 2506
5b7ccaf3 2507 if (rdev->ops->get_channel) {
683b6d3b
JB		 2508 int ret;
2509 struct cfg80211_chan_def chandef;
2510
2511 ret = rdev_get_channel(rdev, wdev, &chandef);
2512 if (ret == 0) {
2513 if (nl80211_send_chandef(msg, &chandef))
2514 goto nla_put_failure;
2515 }
d91df0e3
PF		 2516 }
2517
d55d0d59
RM		 2518 if (rdev->ops->get_tx_power) {
2519 int dbm, ret;
2520
2521 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2522 if (ret == 0 &&
2523 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2524 DBM_TO_MBM(dbm)))
2525 goto nla_put_failure;
2526 }
2527
b84e7a05
AQ		 2528 if (wdev->ssid_len) {
2529 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2530 goto nla_put_failure;
2531 }
2532
053c095a
JB		 2533 genlmsg_end(msg, hdr);
2534 return 0;
55682965
JB		 2535
2536 nla_put_failure:
bc3ed28c
TG		 2537 genlmsg_cancel(msg, hdr);
2538 return -EMSGSIZE;
55682965
JB		 2539}
2540
2541static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2542{
2543 int wp_idx = 0;
2544 int if_idx = 0;
2545 int wp_start = cb->args[0];
2546 int if_start = cb->args[1];
b7fb44da 2547 int filter_wiphy = -1;
f5ea9120 2548 struct cfg80211_registered_device *rdev;
55682965
JB		 2549 struct wireless_dev *wdev;
2550
5fe231e8 2551 rtnl_lock();
b7fb44da
DK		 2552 if (!cb->args[2]) {
2553 struct nl80211_dump_wiphy_state state = {
2554 .filter_wiphy = -1,
2555 };
2556 int ret;
2557
2558 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2559 if (ret)
2560 return ret;
2561
2562 filter_wiphy = state.filter_wiphy;
2563
2564 /*
2565 * if filtering, set cb->args[2] to +1 since 0 is the default
2566 * value needed to determine that parsing is necessary.
2567 */
2568 if (filter_wiphy >= 0)
2569 cb->args[2] = filter_wiphy + 1;
2570 else
2571 cb->args[2] = -1;
2572 } else if (cb->args[2] > 0) {
2573 filter_wiphy = cb->args[2] - 1;
2574 }
2575
f5ea9120
JB		 2576 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2577 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2578 continue;
bba95fef
JB		 2579 if (wp_idx < wp_start) {
2580 wp_idx++;
55682965 2581 continue;
bba95fef 2582 }
b7fb44da
DK		 2583
2584 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2585 continue;
2586
55682965
JB		 2587 if_idx = 0;
2588
53873f13 2589 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
bba95fef
JB		 2590 if (if_idx < if_start) {
2591 if_idx++;
55682965 2592 continue;
bba95fef 2593 }
15e47304 2594 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2595 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2596 rdev, wdev, false) < 0) {
bba95fef
JB		 2597 goto out;
2598 }
2599 if_idx++;
55682965 2600 }
bba95fef
JB		 2601
2602 wp_idx++;
55682965 2603 }
bba95fef 2604 out:
5fe231e8 2605 rtnl_unlock();
55682965
JB		 2606
2607 cb->args[0] = wp_idx;
2608 cb->args[1] = if_idx;
2609
2610 return skb->len;
2611}
2612
2613static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2614{
2615 struct sk_buff *msg;
1b8ec87a 2616 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2617 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2618
fd2120ca 2619 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2620 if (!msg)
4c476991 2621 return -ENOMEM;
55682965 2622
15e47304 2623 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2624 rdev, wdev, false) < 0) {
4c476991
JB		 2625 nlmsg_free(msg);
2626 return -ENOBUFS;
2627 }
55682965 2628
134e6375 2629 return genlmsg_reply(msg, info);
55682965
JB		 2630}
2631
66f7ac50
MW		 2632static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2633 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2634 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2635 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2636 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2637 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2638 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2639};
2640
2641static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2642{
2643 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2644 int flag;
2645
2646 *mntrflags = 0;
2647
2648 if (!nla)
2649 return -EINVAL;
2650
2651 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2652 nla, mntr_flags_policy))
2653 return -EINVAL;
2654
2655 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2656 if (flags[flag])
2657 *mntrflags |= (1<<flag);
2658
2659 return 0;
2660}
2661
9bc383de 2662static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2663 struct net_device *netdev, u8 use_4addr,
2664 enum nl80211_iftype iftype)
9bc383de 2665{
ad4bb6f8 2666 if (!use_4addr) {
f350a0a8 2667 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2668 return -EBUSY;
9bc383de 2669 return 0;
ad4bb6f8 2670 }
9bc383de
JB		 2671
2672 switch (iftype) {
2673 case NL80211_IFTYPE_AP_VLAN:
2674 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2675 return 0;
2676 break;
2677 case NL80211_IFTYPE_STATION:
2678 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2679 return 0;
2680 break;
2681 default:
2682 break;
2683 }
2684
2685 return -EOPNOTSUPP;
2686}
2687
55682965
JB		 2688static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2689{
4c476991 2690 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2691 struct vif_params params;
e36d56b6 2692 int err;
04a773ad 2693 enum nl80211_iftype otype, ntype;
4c476991 2694 struct net_device *dev = info->user_ptr[1];
92ffe055 2695 u32 _flags, *flags = NULL;
ac7f9cfa 2696 bool change = false;
55682965 2697
2ec600d6
LCC		 2698 memset(&params, 0, sizeof(params));
2699
04a773ad 2700 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2701
723b038d 2702 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2703 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2704 if (otype != ntype)
ac7f9cfa 2705 change = true;
4c476991
JB		 2706 if (ntype > NL80211_IFTYPE_MAX)
2707 return -EINVAL;
723b038d
JB		 2708 }
2709
92ffe055 2710 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2711 struct wireless_dev *wdev = dev->ieee80211_ptr;
2712
4c476991
JB		 2713 if (ntype != NL80211_IFTYPE_MESH_POINT)
2714 return -EINVAL;
29cbe68c
JB		 2715 if (netif_running(dev))
2716 return -EBUSY;
2717
2718 wdev_lock(wdev);
2719 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2720 IEEE80211_MAX_MESH_ID_LEN);
2721 wdev->mesh_id_up_len =
2722 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2723 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2724 wdev->mesh_id_up_len);
2725 wdev_unlock(wdev);
2ec600d6
LCC		 2726 }
2727
8b787643
FF		 2728 if (info->attrs[NL80211_ATTR_4ADDR]) {
2729 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2730 change = true;
ad4bb6f8 2731 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2732 if (err)
4c476991 2733 return err;
8b787643
FF		 2734 } else {
2735 params.use_4addr = -1;
2736 }
2737
92ffe055 2738 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2739 if (ntype != NL80211_IFTYPE_MONITOR)
2740 return -EINVAL;
92ffe055
JB		 2741 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2742 &_flags);
ac7f9cfa 2743 if (err)
4c476991 2744 return err;
ac7f9cfa
JB		 2745
2746 flags = &_flags;
2747 change = true;
92ffe055 2748 }
3b85875a 2749
c6e6a0c8
AE		 2750 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2751 const u8 *mumimo_groups;
2752 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2753
2754 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2755 return -EOPNOTSUPP;
2756
2757 mumimo_groups =
2758 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2759
2760 /* bits 0 and 63 are reserved and must be zero */
2761 if ((mumimo_groups[0] & BIT(7)) ||
2762 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(0)))
2763 return -EINVAL;
2764
2765 memcpy(params.vht_mumimo_groups, mumimo_groups,
2766 VHT_MUMIMO_GROUPS_DATA_LEN);
2767 change = true;
2768 }
2769
2770 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2771 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2772
2773 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2774 return -EOPNOTSUPP;
2775
2776 nla_memcpy(params.macaddr,
2777 info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR],
2778 ETH_ALEN);
2779 change = true;
2780 }
2781
18003297 2782 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2783 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2784 return -EOPNOTSUPP;
2785
ac7f9cfa 2786 if (change)
3d54d255 2787 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2788 else
2789 err = 0;
60719ffd 2790
9bc383de
JB		 2791 if (!err && params.use_4addr != -1)
2792 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2793
55682965
JB		 2794 return err;
2795}
2796
2797static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2798{
4c476991 2799 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2800 struct vif_params params;
84efbb84 2801 struct wireless_dev *wdev;
896ff063 2802 struct sk_buff *msg;
55682965
JB		 2803 int err;
2804 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2805 u32 flags;
55682965 2806
78f22b6a
JB		 2807 /* to avoid failing a new interface creation due to pending removal */
2808 cfg80211_destroy_ifaces(rdev);
2809
2ec600d6
LCC		 2810 memset(&params, 0, sizeof(params));
2811
55682965
JB		 2812 if (!info->attrs[NL80211_ATTR_IFNAME])
2813 return -EINVAL;
2814
2815 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2816 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2817 if (type > NL80211_IFTYPE_MAX)
2818 return -EINVAL;
2819 }
2820
79c97e97 2821 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2822 !(rdev->wiphy.interface_modes & (1 << type)))
2823 return -EOPNOTSUPP;
55682965 2824
cb3b7d87 2825 if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
e8f479b1
BG		 2826 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2827 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2828 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2829 ETH_ALEN);
2830 if (!is_valid_ether_addr(params.macaddr))
2831 return -EADDRNOTAVAIL;
2832 }
2833
9bc383de 2834 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2835 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2836 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2837 if (err)
4c476991 2838 return err;
9bc383de 2839 }
8b787643 2840
66f7ac50
MW		 2841 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2842 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2843 &flags);
e057d3c3 2844
18003297 2845 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2846 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2847 return -EOPNOTSUPP;
2848
a18c7192
JB		 2849 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2850 if (!msg)
2851 return -ENOMEM;
2852
e35e4d28
HG		 2853 wdev = rdev_add_virtual_intf(rdev,
2854 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2855 NET_NAME_USER, type, err ? NULL : &flags,
2856 &params);
d687cbb7
RM		 2857 if (WARN_ON(!wdev)) {
2858 nlmsg_free(msg);
2859 return -EPROTO;
2860 } else if (IS_ERR(wdev)) {
1c90f9d4 2861 nlmsg_free(msg);
84efbb84 2862 return PTR_ERR(wdev);
1c90f9d4 2863 }
2ec600d6 2864
18e5ca65 2865 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2866 wdev->owner_nlportid = info->snd_portid;
2867
98104fde
JB		 2868 switch (type) {
2869 case NL80211_IFTYPE_MESH_POINT:
2870 if (!info->attrs[NL80211_ATTR_MESH_ID])
2871 break;
29cbe68c
JB		 2872 wdev_lock(wdev);
2873 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2874 IEEE80211_MAX_MESH_ID_LEN);
2875 wdev->mesh_id_up_len =
2876 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2877 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2878 wdev->mesh_id_up_len);
2879 wdev_unlock(wdev);
98104fde 2880 break;
cb3b7d87 2881 case NL80211_IFTYPE_NAN:
98104fde
JB		 2882 case NL80211_IFTYPE_P2P_DEVICE:
2883 /*
cb3b7d87 2884 * P2P Device and NAN do not have a netdev, so don't go
98104fde
JB		 2885 * through the netdev notifier and must be added here
2886 */
2887 mutex_init(&wdev->mtx);
2888 INIT_LIST_HEAD(&wdev->event_list);
2889 spin_lock_init(&wdev->event_lock);
2890 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2891 spin_lock_init(&wdev->mgmt_registrations_lock);
2892
98104fde 2893 wdev->identifier = ++rdev->wdev_id;
53873f13 2894 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
98104fde 2895 rdev->devlist_generation++;
98104fde
JB		 2896 break;
2897 default:
2898 break;
29cbe68c
JB		 2899 }
2900
15e47304 2901 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2902 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2903 nlmsg_free(msg);
2904 return -ENOBUFS;
2905 }
2906
896ff063
DK		 2907 /*
2908 * For wdevs which have no associated netdev object (e.g. of type
2909 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
2910 * For all other types, the event will be generated from the
2911 * netdev notifier
2912 */
2913 if (!wdev->netdev)
2914 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
8f894be2 2915
1c90f9d4 2916 return genlmsg_reply(msg, info);
55682965
JB		 2917}
2918
2919static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2920{
4c476991 2921 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2922 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2923
4c476991
JB		 2924 if (!rdev->ops->del_virtual_intf)
2925 return -EOPNOTSUPP;
55682965 2926
84efbb84
JB		 2927 /*
2928 * If we remove a wireless device without a netdev then clear
2929 * user_ptr[1] so that nl80211_post_doit won't dereference it
2930 * to check if it needs to do dev_put(). Otherwise it crashes
2931 * since the wdev has been freed, unlike with a netdev where
2932 * we need the dev_put() for the netdev to really be freed.
2933 */
2934 if (!wdev->netdev)
2935 info->user_ptr[1] = NULL;
2936
7f8ed01e 2937 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2938}
2939
1d9d9213
SW		 2940static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2941{
2942 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2943 struct net_device *dev = info->user_ptr[1];
2944 u16 noack_map;
2945
2946 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2947 return -EINVAL;
2948
2949 if (!rdev->ops->set_noack_map)
2950 return -EOPNOTSUPP;
2951
2952 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2953
e35e4d28 2954 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2955}
2956
41ade00f
JB		 2957struct get_key_cookie {
2958 struct sk_buff *msg;
2959 int error;
b9454e83 2960 int idx;
41ade00f
JB		 2961};
2962
2963static void get_key_callback(void *c, struct key_params *params)
2964{
b9454e83 2965 struct nlattr *key;
41ade00f
JB		 2966 struct get_key_cookie *cookie = c;
2967
9360ffd1
DM		 2968 if ((params->key &&
2969 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2970 params->key_len, params->key)) ||
2971 (params->seq &&
2972 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2973 params->seq_len, params->seq)) ||
2974 (params->cipher &&
2975 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2976 params->cipher)))
2977 goto nla_put_failure;
41ade00f 2978
b9454e83
JB		 2979 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2980 if (!key)
2981 goto nla_put_failure;
2982
9360ffd1
DM		 2983 if ((params->key &&
2984 nla_put(cookie->msg, NL80211_KEY_DATA,
2985 params->key_len, params->key)) ||
2986 (params->seq &&
2987 nla_put(cookie->msg, NL80211_KEY_SEQ,
2988 params->seq_len, params->seq)) ||
2989 (params->cipher &&
2990 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2991 params->cipher)))
2992 goto nla_put_failure;
b9454e83 2993
9360ffd1
DM		 2994 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2995 goto nla_put_failure;
b9454e83
JB		 2996
2997 nla_nest_end(cookie->msg, key);
2998
41ade00f
JB		 2999 return;
3000 nla_put_failure:
3001 cookie->error = 1;
3002}
3003
3004static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3005{
4c476991 3006 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3007 int err;
4c476991 3008 struct net_device *dev = info->user_ptr[1];
41ade00f 3009 u8 key_idx = 0;
e31b8213
JB		 3010 const u8 *mac_addr = NULL;
3011 bool pairwise;
41ade00f
JB		 3012 struct get_key_cookie cookie = {
3013 .error = 0,
3014 };
3015 void *hdr;
3016 struct sk_buff *msg;
3017
3018 if (info->attrs[NL80211_ATTR_KEY_IDX])
3019 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3020
3cfcf6ac 3021 if (key_idx > 5)
41ade00f
JB		 3022 return -EINVAL;
3023
3024 if (info->attrs[NL80211_ATTR_MAC])
3025 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3026
e31b8213
JB		 3027 pairwise = !!mac_addr;
3028 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3029 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
7a087e74 3030
e31b8213
JB		 3031 if (kt >= NUM_NL80211_KEYTYPES)
3032 return -EINVAL;
3033 if (kt != NL80211_KEYTYPE_GROUP &&
3034 kt != NL80211_KEYTYPE_PAIRWISE)
3035 return -EINVAL;
3036 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3037 }
3038
4c476991
JB		 3039 if (!rdev->ops->get_key)
3040 return -EOPNOTSUPP;
41ade00f 3041
0fa7b391
JB		 3042 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3043 return -ENOENT;
3044
fd2120ca 3045 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3046 if (!msg)
3047 return -ENOMEM;
41ade00f 3048
15e47304 3049 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 3050 NL80211_CMD_NEW_KEY);
cb35fba3 3051 if (!hdr)
9fe271af 3052 goto nla_put_failure;
41ade00f
JB		 3053
3054 cookie.msg = msg;
b9454e83 3055 cookie.idx = key_idx;
41ade00f 3056
9360ffd1
DM		 3057 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3058 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3059 goto nla_put_failure;
3060 if (mac_addr &&
3061 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3062 goto nla_put_failure;
41ade00f 3063
e35e4d28
HG		 3064 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3065 get_key_callback);
41ade00f
JB		 3066
3067 if (err)
6c95e2a2 3068 goto free_msg;
41ade00f
JB		 3069
3070 if (cookie.error)
3071 goto nla_put_failure;
3072
3073 genlmsg_end(msg, hdr);
4c476991 3074 return genlmsg_reply(msg, info);
41ade00f
JB		 3075
3076 nla_put_failure:
3077 err = -ENOBUFS;
6c95e2a2 3078 free_msg:
41ade00f 3079 nlmsg_free(msg);
41ade00f
JB		 3080 return err;
3081}
3082
3083static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3084{
4c476991 3085 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 3086 struct key_parse key;
41ade00f 3087 int err;
4c476991 3088 struct net_device *dev = info->user_ptr[1];
41ade00f 3089
b9454e83
JB		 3090 err = nl80211_parse_key(info, &key);
3091 if (err)
3092 return err;
41ade00f 3093
b9454e83 3094 if (key.idx < 0)
41ade00f
JB		 3095 return -EINVAL;
3096
b9454e83
JB		 3097 /* only support setting default key */
3098 if (!key.def && !key.defmgmt)
41ade00f
JB		 3099 return -EINVAL;
3100
dbd2fd65 3101 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 3102
dbd2fd65
JB		 3103 if (key.def) {
3104 if (!rdev->ops->set_default_key) {
3105 err = -EOPNOTSUPP;
3106 goto out;
3107 }
41ade00f 3108
dbd2fd65
JB		 3109 err = nl80211_key_allowed(dev->ieee80211_ptr);
3110 if (err)
3111 goto out;
3112
e35e4d28 3113 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 3114 key.def_uni, key.def_multi);
3115
3116 if (err)
3117 goto out;
fffd0934 3118
3d23e349 3119#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 3120 dev->ieee80211_ptr->wext.default_key = key.idx;
3121#endif
3122 } else {
3123 if (key.def_uni || !key.def_multi) {
3124 err = -EINVAL;
3125 goto out;
3126 }
3127
3128 if (!rdev->ops->set_default_mgmt_key) {
3129 err = -EOPNOTSUPP;
3130 goto out;
3131 }
3132
3133 err = nl80211_key_allowed(dev->ieee80211_ptr);
3134 if (err)
3135 goto out;
3136
e35e4d28 3137 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 3138 if (err)
3139 goto out;
3140
3141#ifdef CONFIG_CFG80211_WEXT
3142 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3143#endif
dbd2fd65
JB		 3144 }
3145
3146 out:
fffd0934 3147 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3148
41ade00f
JB		 3149 return err;
3150}
3151
3152static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3153{
4c476991 3154 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3155 int err;
4c476991 3156 struct net_device *dev = info->user_ptr[1];
b9454e83 3157 struct key_parse key;
e31b8213 3158 const u8 *mac_addr = NULL;
41ade00f 3159
b9454e83
JB		 3160 err = nl80211_parse_key(info, &key);
3161 if (err)
3162 return err;
41ade00f 3163
b9454e83 3164 if (!key.p.key)
41ade00f
JB		 3165 return -EINVAL;
3166
41ade00f
JB		 3167 if (info->attrs[NL80211_ATTR_MAC])
3168 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3169
e31b8213
JB		 3170 if (key.type == -1) {
3171 if (mac_addr)
3172 key.type = NL80211_KEYTYPE_PAIRWISE;
3173 else
3174 key.type = NL80211_KEYTYPE_GROUP;
3175 }
3176
3177 /* for now */
3178 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3179 key.type != NL80211_KEYTYPE_GROUP)
3180 return -EINVAL;
3181
4c476991
JB		 3182 if (!rdev->ops->add_key)
3183 return -EOPNOTSUPP;
25e47c18 3184
e31b8213
JB		 3185 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3186 key.type == NL80211_KEYTYPE_PAIRWISE,
3187 mac_addr))
4c476991 3188 return -EINVAL;
41ade00f 3189
fffd0934
JB		 3190 wdev_lock(dev->ieee80211_ptr);
3191 err = nl80211_key_allowed(dev->ieee80211_ptr);
3192 if (!err)
e35e4d28
HG		 3193 err = rdev_add_key(rdev, dev, key.idx,
3194 key.type == NL80211_KEYTYPE_PAIRWISE,
3195 mac_addr, &key.p);
fffd0934 3196 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3197
41ade00f
JB		 3198 return err;
3199}
3200
3201static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3202{
4c476991 3203 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3204 int err;
4c476991 3205 struct net_device *dev = info->user_ptr[1];
41ade00f 3206 u8 *mac_addr = NULL;
b9454e83 3207 struct key_parse key;
41ade00f 3208
b9454e83
JB		 3209 err = nl80211_parse_key(info, &key);
3210 if (err)
3211 return err;
41ade00f
JB		 3212
3213 if (info->attrs[NL80211_ATTR_MAC])
3214 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3215
e31b8213
JB		 3216 if (key.type == -1) {
3217 if (mac_addr)
3218 key.type = NL80211_KEYTYPE_PAIRWISE;
3219 else
3220 key.type = NL80211_KEYTYPE_GROUP;
3221 }
3222
3223 /* for now */
3224 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3225 key.type != NL80211_KEYTYPE_GROUP)
3226 return -EINVAL;
3227
4c476991
JB		 3228 if (!rdev->ops->del_key)
3229 return -EOPNOTSUPP;
41ade00f 3230
fffd0934
JB		 3231 wdev_lock(dev->ieee80211_ptr);
3232 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3233
0fa7b391 3234 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3235 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3236 err = -ENOENT;
3237
fffd0934 3238 if (!err)
e35e4d28
HG		 3239 err = rdev_del_key(rdev, dev, key.idx,
3240 key.type == NL80211_KEYTYPE_PAIRWISE,
3241 mac_addr);
41ade00f 3242
3d23e349 3243#ifdef CONFIG_CFG80211_WEXT
08645126 3244 if (!err) {
b9454e83 3245 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3246 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3247 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3248 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3249 }
3250#endif
fffd0934 3251 wdev_unlock(dev->ieee80211_ptr);
08645126 3252
41ade00f
JB		 3253 return err;
3254}
3255
77765eaf
VT		 3256/* This function returns an error or the number of nested attributes */
3257static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3258{
3259 struct nlattr *attr;
3260 int n_entries = 0, tmp;
3261
3262 nla_for_each_nested(attr, nl_attr, tmp) {
3263 if (nla_len(attr) != ETH_ALEN)
3264 return -EINVAL;
3265
3266 n_entries++;
3267 }
3268
3269 return n_entries;
3270}
3271
3272/*
3273 * This function parses ACL information and allocates memory for ACL data.
3274 * On successful return, the calling function is responsible to free the
3275 * ACL buffer returned by this function.
3276 */
3277static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3278 struct genl_info *info)
3279{
3280 enum nl80211_acl_policy acl_policy;
3281 struct nlattr *attr;
3282 struct cfg80211_acl_data *acl;
3283 int i = 0, n_entries, tmp;
3284
3285 if (!wiphy->max_acl_mac_addrs)
3286 return ERR_PTR(-EOPNOTSUPP);
3287
3288 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3289 return ERR_PTR(-EINVAL);
3290
3291 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3292 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3293 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3294 return ERR_PTR(-EINVAL);
3295
3296 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3297 return ERR_PTR(-EINVAL);
3298
3299 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3300 if (n_entries < 0)
3301 return ERR_PTR(n_entries);
3302
3303 if (n_entries > wiphy->max_acl_mac_addrs)
3304 return ERR_PTR(-ENOTSUPP);
3305
3306 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3307 GFP_KERNEL);
3308 if (!acl)
3309 return ERR_PTR(-ENOMEM);
3310
3311 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3312 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3313 i++;
3314 }
3315
3316 acl->n_acl_entries = n_entries;
3317 acl->acl_policy = acl_policy;
3318
3319 return acl;
3320}
3321
3322static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3323{
3324 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3325 struct net_device *dev = info->user_ptr[1];
3326 struct cfg80211_acl_data *acl;
3327 int err;
3328
3329 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3330 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3331 return -EOPNOTSUPP;
3332
3333 if (!dev->ieee80211_ptr->beacon_interval)
3334 return -EINVAL;
3335
3336 acl = parse_acl_data(&rdev->wiphy, info);
3337 if (IS_ERR(acl))
3338 return PTR_ERR(acl);
3339
3340 err = rdev_set_mac_acl(rdev, dev, acl);
3341
3342 kfree(acl);
3343
3344 return err;
3345}
3346
a7c7fbff
PK		 3347static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
3348 u8 *rates, u8 rates_len)
3349{
3350 u8 i;
3351 u32 mask = 0;
3352
3353 for (i = 0; i < rates_len; i++) {
3354 int rate = (rates[i] & 0x7f) * 5;
3355 int ridx;
3356
3357 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
3358 struct ieee80211_rate *srate =
3359 &sband->bitrates[ridx];
3360 if (rate == srate->bitrate) {
3361 mask |= 1 << ridx;
3362 break;
3363 }
3364 }
3365 if (ridx == sband->n_bitrates)
3366 return 0; /* rate not found */
3367 }
3368
3369 return mask;
3370}
3371
3372static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
3373 u8 *rates, u8 rates_len,
3374 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
3375{
3376 u8 i;
3377
3378 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
3379
3380 for (i = 0; i < rates_len; i++) {
3381 int ridx, rbit;
3382
3383 ridx = rates[i] / 8;
3384 rbit = BIT(rates[i] % 8);
3385
3386 /* check validity */
3387 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
3388 return false;
3389
3390 /* check availability */
3391 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
3392 mcs[ridx] |= rbit;
3393 else
3394 return false;
3395 }
3396
3397 return true;
3398}
3399
3400static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
3401{
3402 u16 mcs_mask = 0;
3403
3404 switch (vht_mcs_map) {
3405 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
3406 break;
3407 case IEEE80211_VHT_MCS_SUPPORT_0_7:
3408 mcs_mask = 0x00FF;
3409 break;
3410 case IEEE80211_VHT_MCS_SUPPORT_0_8:
3411 mcs_mask = 0x01FF;
3412 break;
3413 case IEEE80211_VHT_MCS_SUPPORT_0_9:
3414 mcs_mask = 0x03FF;
3415 break;
3416 default:
3417 break;
3418 }
3419
3420 return mcs_mask;
3421}
3422
3423static void vht_build_mcs_mask(u16 vht_mcs_map,
3424 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
3425{
3426 u8 nss;
3427
3428 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
3429 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
3430 vht_mcs_map >>= 2;
3431 }
3432}
3433
3434static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
3435 struct nl80211_txrate_vht *txrate,
3436 u16 mcs[NL80211_VHT_NSS_MAX])
3437{
3438 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3439 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
3440 u8 i;
3441
3442 if (!sband->vht_cap.vht_supported)
3443 return false;
3444
3445 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
3446
3447 /* Build vht_mcs_mask from VHT capabilities */
3448 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
3449
3450 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3451 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
3452 mcs[i] = txrate->mcs[i];
3453 else
3454 return false;
3455 }
3456
3457 return true;
3458}
3459
3460static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
3461 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
3462 .len = NL80211_MAX_SUPP_RATES },
3463 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
3464 .len = NL80211_MAX_SUPP_HT_RATES },
3465 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
3466 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
3467};
3468
3469static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
3470 struct cfg80211_bitrate_mask *mask)
3471{
3472 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
3473 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3474 int rem, i;
3475 struct nlattr *tx_rates;
3476 struct ieee80211_supported_band *sband;
3477 u16 vht_tx_mcs_map;
3478
3479 memset(mask, 0, sizeof(*mask));
3480 /* Default to all rates enabled */
3481 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3482 sband = rdev->wiphy.bands[i];
3483
3484 if (!sband)
3485 continue;
3486
3487 mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
3488 memcpy(mask->control[i].ht_mcs,
3489 sband->ht_cap.mcs.rx_mask,
3490 sizeof(mask->control[i].ht_mcs));
3491
3492 if (!sband->vht_cap.vht_supported)
3493 continue;
3494
3495 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3496 vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
3497 }
3498
3499 /* if no rates are given set it back to the defaults */
3500 if (!info->attrs[NL80211_ATTR_TX_RATES])
3501 goto out;
3502
3503 /* The nested attribute uses enum nl80211_band as the index. This maps
3504 * directly to the enum nl80211_band values used in cfg80211.
3505 */
3506 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
3507 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
3508 enum nl80211_band band = nla_type(tx_rates);
3509 int err;
3510
3511 if (band < 0 || band >= NUM_NL80211_BANDS)
3512 return -EINVAL;
3513 sband = rdev->wiphy.bands[band];
3514 if (sband == NULL)
3515 return -EINVAL;
3516 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
3517 nla_len(tx_rates), nl80211_txattr_policy);
3518 if (err)
3519 return err;
3520 if (tb[NL80211_TXRATE_LEGACY]) {
3521 mask->control[band].legacy = rateset_to_mask(
3522 sband,
3523 nla_data(tb[NL80211_TXRATE_LEGACY]),
3524 nla_len(tb[NL80211_TXRATE_LEGACY]));
3525 if ((mask->control[band].legacy == 0) &&
3526 nla_len(tb[NL80211_TXRATE_LEGACY]))
3527 return -EINVAL;
3528 }
3529 if (tb[NL80211_TXRATE_HT]) {
3530 if (!ht_rateset_to_mask(
3531 sband,
3532 nla_data(tb[NL80211_TXRATE_HT]),
3533 nla_len(tb[NL80211_TXRATE_HT]),
3534 mask->control[band].ht_mcs))
3535 return -EINVAL;
3536 }
3537 if (tb[NL80211_TXRATE_VHT]) {
3538 if (!vht_set_mcs_mask(
3539 sband,
3540 nla_data(tb[NL80211_TXRATE_VHT]),
3541 mask->control[band].vht_mcs))
3542 return -EINVAL;
3543 }
3544 if (tb[NL80211_TXRATE_GI]) {
3545 mask->control[band].gi =
3546 nla_get_u8(tb[NL80211_TXRATE_GI]);
3547 if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
3548 return -EINVAL;
3549 }
3550
3551 if (mask->control[band].legacy == 0) {
3552 /* don't allow empty legacy rates if HT or VHT
3553 * are not even supported.
3554 */
3555 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
3556 rdev->wiphy.bands[band]->vht_cap.vht_supported))
3557 return -EINVAL;
3558
3559 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
3560 if (mask->control[band].ht_mcs[i])
3561 goto out;
3562
3563 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
3564 if (mask->control[band].vht_mcs[i])
3565 goto out;
3566
3567 /* legacy and mcs rates may not be both empty */
3568 return -EINVAL;
3569 }
3570 }
3571
3572out:
3573 return 0;
3574}
3575
8564e382
JB		 3576static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
3577 enum nl80211_band band,
3578 struct cfg80211_bitrate_mask *beacon_rate)
a7c7fbff 3579{
8564e382
JB		 3580 u32 count_ht, count_vht, i;
3581 u32 rate = beacon_rate->control[band].legacy;
a7c7fbff
PK		 3582
3583 /* Allow only one rate */
3584 if (hweight32(rate) > 1)
3585 return -EINVAL;
3586
3587 count_ht = 0;
3588 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
8564e382 3589 if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
a7c7fbff 3590 return -EINVAL;
8564e382 3591 } else if (beacon_rate->control[band].ht_mcs[i]) {
a7c7fbff
PK		 3592 count_ht++;
3593 if (count_ht > 1)
3594 return -EINVAL;
3595 }
3596 if (count_ht && rate)
3597 return -EINVAL;
3598 }
3599
3600 count_vht = 0;
3601 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8564e382 3602 if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
a7c7fbff 3603 return -EINVAL;
8564e382 3604 } else if (beacon_rate->control[band].vht_mcs[i]) {
a7c7fbff
PK		 3605 count_vht++;
3606 if (count_vht > 1)
3607 return -EINVAL;
3608 }
3609 if (count_vht && rate)
3610 return -EINVAL;
3611 }
3612
3613 if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
3614 return -EINVAL;
3615
8564e382
JB		 3616 if (rate &&
3617 !wiphy_ext_feature_isset(&rdev->wiphy,
3618 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
3619 return -EINVAL;
3620 if (count_ht &&
3621 !wiphy_ext_feature_isset(&rdev->wiphy,
3622 NL80211_EXT_FEATURE_BEACON_RATE_HT))
3623 return -EINVAL;
3624 if (count_vht &&
3625 !wiphy_ext_feature_isset(&rdev->wiphy,
3626 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
3627 return -EINVAL;
3628
a7c7fbff
PK		 3629 return 0;
3630}
3631
a1193be8 3632static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3633 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3634{
8860020e 3635 bool haveinfo = false;
ed1b6cc7 3636
a1193be8
SW		 3637 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3638 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3639 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3640 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3641 return -EINVAL;
3642
8860020e 3643 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3644
a1193be8
SW		 3645 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3646 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3647 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3648 if (!bcn->head_len)
3649 return -EINVAL;
3650 haveinfo = true;
ed1b6cc7
JB		 3651 }
3652
a1193be8
SW		 3653 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3654 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3655 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3656 haveinfo = true;
ed1b6cc7
JB		 3657 }
3658
4c476991
JB		 3659 if (!haveinfo)
3660 return -EINVAL;
3b85875a 3661
a1193be8
SW		 3662 if (attrs[NL80211_ATTR_IE]) {
3663 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3664 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3665 }
3666
a1193be8 3667 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3668 bcn->proberesp_ies =
a1193be8 3669 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3670 bcn->proberesp_ies_len =
a1193be8 3671 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3672 }
3673
a1193be8 3674 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3675 bcn->assocresp_ies =
a1193be8 3676 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3677 bcn->assocresp_ies_len =
a1193be8 3678 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3679 }
3680
a1193be8
SW		 3681 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3682 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3683 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3684 }
3685
8860020e
JB		 3686 return 0;
3687}
3688
46c1dd0c
FF		 3689static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3690 struct cfg80211_ap_settings *params)
3691{
3692 struct wireless_dev *wdev;
3693 bool ret = false;
3694
53873f13 3695 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
46c1dd0c
FF		 3696 if (wdev->iftype != NL80211_IFTYPE_AP &&
3697 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3698 continue;
3699
683b6d3b 3700 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3701 continue;
3702
683b6d3b 3703 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3704 ret = true;
3705 break;
3706 }
3707
46c1dd0c
FF		 3708 return ret;
3709}
3710
e39e5b5e
JM		 3711static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3712 enum nl80211_auth_type auth_type,
3713 enum nl80211_commands cmd)
3714{
3715 if (auth_type > NL80211_AUTHTYPE_MAX)
3716 return false;
3717
3718 switch (cmd) {
3719 case NL80211_CMD_AUTHENTICATE:
3720 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3721 auth_type == NL80211_AUTHTYPE_SAE)
3722 return false;
3723 return true;
3724 case NL80211_CMD_CONNECT:
3725 case NL80211_CMD_START_AP:
3726 /* SAE not supported yet */
3727 if (auth_type == NL80211_AUTHTYPE_SAE)
3728 return false;
3729 return true;
3730 default:
3731 return false;
3732 }
3733}
3734
8860020e
JB		 3735static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3736{
3737 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3738 struct net_device *dev = info->user_ptr[1];
3739 struct wireless_dev *wdev = dev->ieee80211_ptr;
3740 struct cfg80211_ap_settings params;
3741 int err;
3742
3743 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3744 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3745 return -EOPNOTSUPP;
3746
3747 if (!rdev->ops->start_ap)
3748 return -EOPNOTSUPP;
3749
3750 if (wdev->beacon_interval)
3751 return -EALREADY;
3752
3753 memset(&params, 0, sizeof(params));
3754
3755 /* these are required for START_AP */
3756 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3757 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3758 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3759 return -EINVAL;
3760
a1193be8 3761 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3762 if (err)
3763 return err;
3764
3765 params.beacon_interval =
3766 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3767 params.dtim_period =
3768 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3769
3770 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3771 if (err)
3772 return err;
3773
3774 /*
3775 * In theory, some of these attributes should be required here
3776 * but since they were not used when the command was originally
3777 * added, keep them optional for old user space programs to let
3778 * them continue to work with drivers that do not need the
3779 * additional information -- drivers must check!
3780 */
3781 if (info->attrs[NL80211_ATTR_SSID]) {
3782 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3783 params.ssid_len =
3784 nla_len(info->attrs[NL80211_ATTR_SSID]);
3785 if (params.ssid_len == 0 ||
3786 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3787 return -EINVAL;
3788 }
3789
3790 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3791 params.hidden_ssid = nla_get_u32(
3792 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3793 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3794 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3795 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3796 return -EINVAL;
3797 }
3798
3799 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3800
3801 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3802 params.auth_type = nla_get_u32(
3803 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3804 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3805 NL80211_CMD_START_AP))
8860020e
JB		 3806 return -EINVAL;
3807 } else
3808 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3809
3810 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3811 NL80211_MAX_NR_CIPHER_SUITES);
3812 if (err)
3813 return err;
3814
1b658f11
VT		 3815 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3816 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3817 return -EOPNOTSUPP;
3818 params.inactivity_timeout = nla_get_u16(
3819 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3820 }
3821
53cabad7
JB		 3822 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3823 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3824 return -EINVAL;
3825 params.p2p_ctwindow =
3826 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3827 if (params.p2p_ctwindow > 127)
3828 return -EINVAL;
3829 if (params.p2p_ctwindow != 0 &&
3830 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3831 return -EINVAL;
3832 }
3833
3834 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3835 u8 tmp;
3836
3837 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3838 return -EINVAL;
3839 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3840 if (tmp > 1)
3841 return -EINVAL;
3842 params.p2p_opp_ps = tmp;
3843 if (params.p2p_opp_ps != 0 &&
3844 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3845 return -EINVAL;
3846 }
3847
aa430da4 3848 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3849 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3850 if (err)
3851 return err;
3852 } else if (wdev->preset_chandef.chan) {
3853 params.chandef = wdev->preset_chandef;
46c1dd0c 3854 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3855 return -EINVAL;
3856
923b352f
AN		 3857 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3858 wdev->iftype))
aa430da4
JB		 3859 return -EINVAL;
3860
a7c7fbff
PK		 3861 if (info->attrs[NL80211_ATTR_TX_RATES]) {
3862 err = nl80211_parse_tx_bitrate_mask(info, &params.beacon_rate);
3863 if (err)
3864 return err;
3865
8564e382
JB		 3866 err = validate_beacon_tx_rate(rdev, params.chandef.chan->band,
3867 &params.beacon_rate);
a7c7fbff
PK		 3868 if (err)
3869 return err;
3870 }
3871
18998c38
EP		 3872 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3873 params.smps_mode =
3874 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3875 switch (params.smps_mode) {
3876 case NL80211_SMPS_OFF:
3877 break;
3878 case NL80211_SMPS_STATIC:
3879 if (!(rdev->wiphy.features &
3880 NL80211_FEATURE_STATIC_SMPS))
3881 return -EINVAL;
3882 break;
3883 case NL80211_SMPS_DYNAMIC:
3884 if (!(rdev->wiphy.features &
3885 NL80211_FEATURE_DYNAMIC_SMPS))
3886 return -EINVAL;
3887 break;
3888 default:
3889 return -EINVAL;
3890 }
3891 } else {
3892 params.smps_mode = NL80211_SMPS_OFF;
3893 }
3894
6e8ef842
PK		 3895 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
3896 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
3897 return -EOPNOTSUPP;
3898
4baf6bea
OO		 3899 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3900 params.acl = parse_acl_data(&rdev->wiphy, info);
3901 if (IS_ERR(params.acl))
3902 return PTR_ERR(params.acl);
3903 }
3904
c56589ed 3905 wdev_lock(wdev);
e35e4d28 3906 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3907 if (!err) {
683b6d3b 3908 wdev->preset_chandef = params.chandef;
8860020e 3909 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3910 wdev->chandef = params.chandef;
06e191e2
AQ		 3911 wdev->ssid_len = params.ssid_len;
3912 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3913 }
c56589ed 3914 wdev_unlock(wdev);
77765eaf
VT		 3915
3916 kfree(params.acl);
3917
56d1893d 3918 return err;
ed1b6cc7
JB		 3919}
3920
8860020e
JB		 3921static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3922{
3923 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3924 struct net_device *dev = info->user_ptr[1];
3925 struct wireless_dev *wdev = dev->ieee80211_ptr;
3926 struct cfg80211_beacon_data params;
3927 int err;
3928
3929 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3930 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3931 return -EOPNOTSUPP;
3932
3933 if (!rdev->ops->change_beacon)
3934 return -EOPNOTSUPP;
3935
3936 if (!wdev->beacon_interval)
3937 return -EINVAL;
3938
a1193be8 3939 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3940 if (err)
3941 return err;
3942
c56589ed
SW		 3943 wdev_lock(wdev);
3944 err = rdev_change_beacon(rdev, dev, &params);
3945 wdev_unlock(wdev);
3946
3947 return err;
8860020e
JB		 3948}
3949
3950static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3951{
4c476991
JB		 3952 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3953 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3954
7c8d5e03 3955 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3956}
3957
5727ef1b
JB		 3958static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3959 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3960 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3961 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3962 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3963 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3964 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3965};
3966
eccb8e8f 3967static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3968 enum nl80211_iftype iftype,
eccb8e8f 3969 struct station_parameters *params)
5727ef1b
JB		 3970{
3971 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3972 struct nlattr *nla;
5727ef1b
JB		 3973 int flag;
3974
eccb8e8f
JB		 3975 /*
3976 * Try parsing the new attribute first so userspace
3977 * can specify both for older kernels.
3978 */
3979 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3980 if (nla) {
3981 struct nl80211_sta_flag_update *sta_flags;
3982
3983 sta_flags = nla_data(nla);
3984 params->sta_flags_mask = sta_flags->mask;
3985 params->sta_flags_set = sta_flags->set;
77ee7c89 3986 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3987 if ((params->sta_flags_mask |
3988 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3989 return -EINVAL;
3990 return 0;
3991 }
3992
3993 /* if present, parse the old attribute */
5727ef1b 3994
eccb8e8f 3995 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3996 if (!nla)
3997 return 0;
3998
3999 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
4000 nla, sta_flags_policy))
4001 return -EINVAL;
4002
bdd3ae3d
JB		 4003 /*
4004 * Only allow certain flags for interface types so that
4005 * other attributes are silently ignored. Remember that
4006 * this is backward compatibility code with old userspace
4007 * and shouldn't be hit in other cases anyway.
4008 */
4009 switch (iftype) {
4010 case NL80211_IFTYPE_AP:
4011 case NL80211_IFTYPE_AP_VLAN:
4012 case NL80211_IFTYPE_P2P_GO:
4013 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4014 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4015 BIT(NL80211_STA_FLAG_WME) |
4016 BIT(NL80211_STA_FLAG_MFP);
4017 break;
4018 case NL80211_IFTYPE_P2P_CLIENT:
4019 case NL80211_IFTYPE_STATION:
4020 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4021 BIT(NL80211_STA_FLAG_TDLS_PEER);
4022 break;
4023 case NL80211_IFTYPE_MESH_POINT:
4024 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4025 BIT(NL80211_STA_FLAG_MFP) |
4026 BIT(NL80211_STA_FLAG_AUTHORIZED);
4027 default:
4028 return -EINVAL;
4029 }
5727ef1b 4030
3383b5a6
JB		 4031 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
4032 if (flags[flag]) {
eccb8e8f 4033 params->sta_flags_set |= (1<<flag);
5727ef1b 4034
3383b5a6
JB		 4035 /* no longer support new API additions in old API */
4036 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
4037 return -EINVAL;
4038 }
4039 }
4040
5727ef1b
JB		 4041 return 0;
4042}
4043
c8dcfd8a
FF		 4044static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
4045 int attr)
4046{
4047 struct nlattr *rate;
8eb41c8d
VK		 4048 u32 bitrate;
4049 u16 bitrate_compat;
b51f3bee 4050 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 4051
4052 rate = nla_nest_start(msg, attr);
4053 if (!rate)
db9c64cf 4054 return false;
c8dcfd8a
FF		 4055
4056 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
4057 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 4058 /* report 16-bit bitrate only if we can */
4059 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 4060 if (bitrate > 0 &&
4061 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
4062 return false;
4063 if (bitrate_compat > 0 &&
4064 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
4065 return false;
4066
b51f3bee
JB		 4067 switch (info->bw) {
4068 case RATE_INFO_BW_5:
4069 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
4070 break;
4071 case RATE_INFO_BW_10:
4072 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
4073 break;
4074 default:
4075 WARN_ON(1);
4076 /* fall through */
4077 case RATE_INFO_BW_20:
4078 rate_flg = 0;
4079 break;
4080 case RATE_INFO_BW_40:
4081 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
4082 break;
4083 case RATE_INFO_BW_80:
4084 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
4085 break;
4086 case RATE_INFO_BW_160:
4087 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
4088 break;
4089 }
4090
4091 if (rate_flg && nla_put_flag(msg, rate_flg))
4092 return false;
4093
db9c64cf
JB		 4094 if (info->flags & RATE_INFO_FLAGS_MCS) {
4095 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
4096 return false;
db9c64cf
JB		 4097 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4098 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4099 return false;
4100 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
4101 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
4102 return false;
4103 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
4104 return false;
db9c64cf
JB		 4105 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4106 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4107 return false;
4108 }
c8dcfd8a
FF		 4109
4110 nla_nest_end(msg, rate);
4111 return true;
c8dcfd8a
FF		 4112}
4113
119363c7
FF		 4114static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
4115 int id)
4116{
4117 void *attr;
4118 int i = 0;
4119
4120 if (!mask)
4121 return true;
4122
4123 attr = nla_nest_start(msg, id);
4124 if (!attr)
4125 return false;
4126
4127 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
4128 if (!(mask & BIT(i)))
4129 continue;
4130
4131 if (nla_put_u8(msg, i, signal[i]))
4132 return false;
4133 }
4134
4135 nla_nest_end(msg, attr);
4136
4137 return true;
4138}
4139
cf5ead82
JB		 4140static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
4141 u32 seq, int flags,
66266b3a
JL		 4142 struct cfg80211_registered_device *rdev,
4143 struct net_device *dev,
98b62183 4144 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 4145{
4146 void *hdr;
f4263c98 4147 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 4148
cf5ead82 4149 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 4150 if (!hdr)
4151 return -1;
4152
9360ffd1
DM		 4153 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4154 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
4155 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
4156 goto nla_put_failure;
f5ea9120 4157
2ec600d6
LCC		 4158 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
4159 if (!sinfoattr)
fd5b74dc 4160 goto nla_put_failure;
319090bf
JB		 4161
4162#define PUT_SINFO(attr, memb, type) do { \
d686b920 4163 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
739960f1 4164 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
319090bf
JB		 4165 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
4166 sinfo->memb)) \
4167 goto nla_put_failure; \
4168 } while (0)
d686b920
JB		 4169#define PUT_SINFO_U64(attr, memb) do { \
4170 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4171 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
4172 sinfo->memb, NL80211_STA_INFO_PAD)) \
4173 goto nla_put_failure; \
4174 } while (0)
319090bf
JB		 4175
4176 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
4177 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
4178
4179 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
4180 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 4181 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 4182 (u32)sinfo->rx_bytes))
9360ffd1 4183 goto nla_put_failure;
319090bf
JB		 4184
4185 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
4186 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 4187 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 4188 (u32)sinfo->tx_bytes))
4189 goto nla_put_failure;
319090bf 4190
d686b920
JB		 4191 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
4192 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
319090bf
JB		 4193 PUT_SINFO(LLID, llid, u16);
4194 PUT_SINFO(PLID, plid, u16);
4195 PUT_SINFO(PLINK_STATE, plink_state, u8);
d686b920 4196 PUT_SINFO_U64(RX_DURATION, rx_duration);
319090bf 4197
66266b3a
JL		 4198 switch (rdev->wiphy.signal_type) {
4199 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 4200 PUT_SINFO(SIGNAL, signal, u8);
4201 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 4202 break;
4203 default:
4204 break;
4205 }
319090bf 4206 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 4207 if (!nl80211_put_signal(msg, sinfo->chains,
4208 sinfo->chain_signal,
4209 NL80211_STA_INFO_CHAIN_SIGNAL))
4210 goto nla_put_failure;
4211 }
319090bf 4212 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 4213 if (!nl80211_put_signal(msg, sinfo->chains,
4214 sinfo->chain_signal_avg,
4215 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
4216 goto nla_put_failure;
4217 }
319090bf 4218 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 4219 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
4220 NL80211_STA_INFO_TX_BITRATE))
4221 goto nla_put_failure;
4222 }
319090bf 4223 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 4224 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
4225 NL80211_STA_INFO_RX_BITRATE))
420e7fab 4226 goto nla_put_failure;
420e7fab 4227 }
319090bf
JB		 4228
4229 PUT_SINFO(RX_PACKETS, rx_packets, u32);
4230 PUT_SINFO(TX_PACKETS, tx_packets, u32);
4231 PUT_SINFO(TX_RETRIES, tx_retries, u32);
4232 PUT_SINFO(TX_FAILED, tx_failed, u32);
4233 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
4234 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
4235 PUT_SINFO(LOCAL_PM, local_pm, u32);
4236 PUT_SINFO(PEER_PM, peer_pm, u32);
4237 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
4238
4239 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 4240 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
4241 if (!bss_param)
4242 goto nla_put_failure;
4243
9360ffd1
DM		 4244 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
4245 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
4246 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
4247 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
4248 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
4249 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
4250 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
4251 sinfo->bss_param.dtim_period) ||
4252 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
4253 sinfo->bss_param.beacon_interval))
4254 goto nla_put_failure;
f4263c98
PS		 4255
4256 nla_nest_end(msg, bss_param);
4257 }
319090bf 4258 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 4259 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
4260 sizeof(struct nl80211_sta_flag_update),
4261 &sinfo->sta_flags))
4262 goto nla_put_failure;
319090bf 4263
d686b920
JB		 4264 PUT_SINFO_U64(T_OFFSET, t_offset);
4265 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
4266 PUT_SINFO_U64(BEACON_RX, rx_beacon);
a76b1942 4267 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 4268
4269#undef PUT_SINFO
d686b920 4270#undef PUT_SINFO_U64
6de39808
JB		 4271
4272 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
4273 struct nlattr *tidsattr;
4274 int tid;
4275
4276 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
4277 if (!tidsattr)
4278 goto nla_put_failure;
4279
4280 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
4281 struct cfg80211_tid_stats *tidstats;
4282 struct nlattr *tidattr;
4283
4284 tidstats = &sinfo->pertid[tid];
4285
4286 if (!tidstats->filled)
4287 continue;
4288
4289 tidattr = nla_nest_start(msg, tid + 1);
4290 if (!tidattr)
4291 goto nla_put_failure;
4292
d686b920 4293#define PUT_TIDVAL_U64(attr, memb) do { \
6de39808 4294 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
d686b920
JB		 4295 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
4296 tidstats->memb, NL80211_TID_STATS_PAD)) \
6de39808
JB		 4297 goto nla_put_failure; \
4298 } while (0)
4299
d686b920
JB		 4300 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4301 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4302 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4303 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
6de39808 4304
d686b920 4305#undef PUT_TIDVAL_U64
6de39808
JB		 4306 nla_nest_end(msg, tidattr);
4307 }
4308
4309 nla_nest_end(msg, tidsattr);
4310 }
4311
2ec600d6 4312 nla_nest_end(msg, sinfoattr);
fd5b74dc 4313
319090bf 4314 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 4315 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4316 sinfo->assoc_req_ies))
4317 goto nla_put_failure;
50d3dfb7 4318
053c095a
JB		 4319 genlmsg_end(msg, hdr);
4320 return 0;
fd5b74dc
JB		 4321
4322 nla_put_failure:
bc3ed28c
TG		 4323 genlmsg_cancel(msg, hdr);
4324 return -EMSGSIZE;
fd5b74dc
JB		 4325}
4326
2ec600d6 4327static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 4328 struct netlink_callback *cb)
2ec600d6 4329{
2ec600d6 4330 struct station_info sinfo;
1b8ec87a 4331 struct cfg80211_registered_device *rdev;
97990a06 4332 struct wireless_dev *wdev;
2ec600d6 4333 u8 mac_addr[ETH_ALEN];
97990a06 4334 int sta_idx = cb->args[2];
2ec600d6 4335 int err;
2ec600d6 4336
1b8ec87a 4337 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4338 if (err)
4339 return err;
bba95fef 4340
97990a06
JB		 4341 if (!wdev->netdev) {
4342 err = -EINVAL;
4343 goto out_err;
4344 }
4345
1b8ec87a 4346 if (!rdev->ops->dump_station) {
eec60b03 4347 err = -EOPNOTSUPP;
bba95fef
JB		 4348 goto out_err;
4349 }
4350
bba95fef 4351 while (1) {
f612cedf 4352 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 4353 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 4354 mac_addr, &sinfo);
bba95fef
JB		 4355 if (err == -ENOENT)
4356 break;
4357 if (err)
3b85875a 4358 goto out_err;
bba95fef 4359
cf5ead82 4360 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 4361 NETLINK_CB(cb->skb).portid,
bba95fef 4362 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 4363 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 4364 &sinfo) < 0)
4365 goto out;
4366
4367 sta_idx++;
4368 }
4369
bba95fef 4370 out:
97990a06 4371 cb->args[2] = sta_idx;
bba95fef 4372 err = skb->len;
bba95fef 4373 out_err:
1b8ec87a 4374 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 4375
4376 return err;
2ec600d6 4377}
fd5b74dc 4378
5727ef1b
JB		 4379static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4380{
4c476991
JB		 4381 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4382 struct net_device *dev = info->user_ptr[1];
2ec600d6 4383 struct station_info sinfo;
fd5b74dc
JB		 4384 struct sk_buff *msg;
4385 u8 *mac_addr = NULL;
4c476991 4386 int err;
fd5b74dc 4387
2ec600d6 4388 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 4389
4390 if (!info->attrs[NL80211_ATTR_MAC])
4391 return -EINVAL;
4392
4393 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4394
4c476991
JB		 4395 if (!rdev->ops->get_station)
4396 return -EOPNOTSUPP;
3b85875a 4397
e35e4d28 4398 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 4399 if (err)
4c476991 4400 return err;
2ec600d6 4401
fd2120ca 4402 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 4403 if (!msg)
4c476991 4404 return -ENOMEM;
fd5b74dc 4405
cf5ead82
JB		 4406 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4407 info->snd_portid, info->snd_seq, 0,
66266b3a 4408 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 4409 nlmsg_free(msg);
4410 return -ENOBUFS;
4411 }
3b85875a 4412
4c476991 4413 return genlmsg_reply(msg, info);
5727ef1b
JB		 4414}
4415
77ee7c89
JB		 4416int cfg80211_check_station_change(struct wiphy *wiphy,
4417 struct station_parameters *params,
4418 enum cfg80211_station_type statype)
4419{
e4208427
AB		 4420 if (params->listen_interval != -1 &&
4421 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4422 return -EINVAL;
e4208427 4423
17b94247
AB		 4424 if (params->support_p2p_ps != -1 &&
4425 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4426 return -EINVAL;
4427
c72e1140 4428 if (params->aid &&
e4208427
AB		 4429 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4430 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4431 return -EINVAL;
4432
4433 /* When you run into this, adjust the code below for the new flag */
4434 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4435
4436 switch (statype) {
eef941e6
TP		 4437 case CFG80211_STA_MESH_PEER_KERNEL:
4438 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4439 /*
4440 * No ignoring the TDLS flag here -- the userspace mesh
4441 * code doesn't have the bug of including TDLS in the
4442 * mask everywhere.
4443 */
4444 if (params->sta_flags_mask &
4445 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4446 BIT(NL80211_STA_FLAG_MFP) |
4447 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4448 return -EINVAL;
4449 break;
4450 case CFG80211_STA_TDLS_PEER_SETUP:
4451 case CFG80211_STA_TDLS_PEER_ACTIVE:
4452 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4453 return -EINVAL;
4454 /* ignore since it can't change */
4455 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4456 break;
4457 default:
4458 /* disallow mesh-specific things */
4459 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4460 return -EINVAL;
4461 if (params->local_pm)
4462 return -EINVAL;
4463 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4464 return -EINVAL;
4465 }
4466
4467 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4468 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4469 /* TDLS can't be set, ... */
4470 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4471 return -EINVAL;
4472 /*
4473 * ... but don't bother the driver with it. This works around
4474 * a hostapd/wpa_supplicant issue -- it always includes the
4475 * TLDS_PEER flag in the mask even for AP mode.
4476 */
4477 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4478 }
4479
47edb11b
AB		 4480 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4481 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4482 /* reject other things that can't change */
4483 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4484 return -EINVAL;
4485 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4486 return -EINVAL;
4487 if (params->supported_rates)
4488 return -EINVAL;
4489 if (params->ext_capab || params->ht_capa || params->vht_capa)
4490 return -EINVAL;
4491 }
4492
47edb11b
AB		 4493 if (statype != CFG80211_STA_AP_CLIENT &&
4494 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4495 if (params->vlan)
4496 return -EINVAL;
4497 }
4498
4499 switch (statype) {
4500 case CFG80211_STA_AP_MLME_CLIENT:
4501 /* Use this only for authorizing/unauthorizing a station */
4502 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4503 return -EOPNOTSUPP;
4504 break;
4505 case CFG80211_STA_AP_CLIENT:
47edb11b 4506 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4507 /* accept only the listed bits */
4508 if (params->sta_flags_mask &
4509 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4510 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4511 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4512 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4513 BIT(NL80211_STA_FLAG_WME) |
4514 BIT(NL80211_STA_FLAG_MFP)))
4515 return -EINVAL;
4516
4517 /* but authenticated/associated only if driver handles it */
4518 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4519 params->sta_flags_mask &
4520 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4521 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4522 return -EINVAL;
4523 break;
4524 case CFG80211_STA_IBSS:
4525 case CFG80211_STA_AP_STA:
4526 /* reject any changes other than AUTHORIZED */
4527 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4528 return -EINVAL;
4529 break;
4530 case CFG80211_STA_TDLS_PEER_SETUP:
4531 /* reject any changes other than AUTHORIZED or WME */
4532 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4533 BIT(NL80211_STA_FLAG_WME)))
4534 return -EINVAL;
4535 /* force (at least) rates when authorizing */
4536 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4537 !params->supported_rates)
4538 return -EINVAL;
4539 break;
4540 case CFG80211_STA_TDLS_PEER_ACTIVE:
4541 /* reject any changes */
4542 return -EINVAL;
eef941e6 4543 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4544 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4545 return -EINVAL;
4546 break;
eef941e6 4547 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4548 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4549 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4550 return -EINVAL;
4551 break;
4552 }
4553
4554 return 0;
4555}
4556EXPORT_SYMBOL(cfg80211_check_station_change);
4557
5727ef1b 4558/*
c258d2de 4559 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4560 */
80b99899
JB		 4561static struct net_device *get_vlan(struct genl_info *info,
4562 struct cfg80211_registered_device *rdev)
5727ef1b 4563{
463d0183 4564 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4565 struct net_device *v;
4566 int ret;
4567
4568 if (!vlanattr)
4569 return NULL;
4570
4571 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4572 if (!v)
4573 return ERR_PTR(-ENODEV);
4574
4575 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4576 ret = -EINVAL;
4577 goto error;
5727ef1b 4578 }
80b99899 4579
77ee7c89
JB		 4580 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4581 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4582 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4583 ret = -EINVAL;
4584 goto error;
4585 }
4586
80b99899
JB		 4587 if (!netif_running(v)) {
4588 ret = -ENETDOWN;
4589 goto error;
4590 }
4591
4592 return v;
4593 error:
4594 dev_put(v);
4595 return ERR_PTR(ret);
5727ef1b
JB		 4596}
4597
94e860f1
JB		 4598static const struct nla_policy
4599nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4600 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4601 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4602};
4603
ff276691
JB		 4604static int nl80211_parse_sta_wme(struct genl_info *info,
4605 struct station_parameters *params)
df881293 4606{
df881293
JM		 4607 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4608 struct nlattr *nla;
4609 int err;
4610
df881293
JM		 4611 /* parse WME attributes if present */
4612 if (!info->attrs[NL80211_ATTR_STA_WME])
4613 return 0;
4614
4615 nla = info->attrs[NL80211_ATTR_STA_WME];
4616 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4617 nl80211_sta_wme_policy);
4618 if (err)
4619 return err;
4620
4621 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4622 params->uapsd_queues = nla_get_u8(
4623 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4624 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4625 return -EINVAL;
4626
4627 if (tb[NL80211_STA_WME_MAX_SP])
4628 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4629
4630 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4631 return -EINVAL;
4632
4633 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4634
4635 return 0;
4636}
4637
c01fc9ad
SD		 4638static int nl80211_parse_sta_channel_info(struct genl_info *info,
4639 struct station_parameters *params)
4640{
4641 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4642 params->supported_channels =
4643 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4644 params->supported_channels_len =
4645 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4646 /*
4647 * Need to include at least one (first channel, number of
4648 * channels) tuple for each subband, and must have proper
4649 * tuples for the rest of the data as well.
4650 */
4651 if (params->supported_channels_len < 2)
4652 return -EINVAL;
4653 if (params->supported_channels_len % 2)
4654 return -EINVAL;
4655 }
4656
4657 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4658 params->supported_oper_classes =
4659 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4660 params->supported_oper_classes_len =
4661 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4662 /*
4663 * The value of the Length field of the Supported Operating
4664 * Classes element is between 2 and 253.
4665 */
4666 if (params->supported_oper_classes_len < 2 ||
4667 params->supported_oper_classes_len > 253)
4668 return -EINVAL;
4669 }
4670 return 0;
4671}
4672
ff276691
JB		 4673static int nl80211_set_station_tdls(struct genl_info *info,
4674 struct station_parameters *params)
4675{
c01fc9ad 4676 int err;
ff276691 4677 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4678 if (info->attrs[NL80211_ATTR_PEER_AID])
4679 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4680 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4681 params->ht_capa =
4682 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4683 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4684 params->vht_capa =
4685 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4686
c01fc9ad
SD		 4687 err = nl80211_parse_sta_channel_info(info, params);
4688 if (err)
4689 return err;
4690
ff276691
JB		 4691 return nl80211_parse_sta_wme(info, params);
4692}
4693
5727ef1b
JB		 4694static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4695{
4c476991 4696 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4697 struct net_device *dev = info->user_ptr[1];
5727ef1b 4698 struct station_parameters params;
77ee7c89
JB		 4699 u8 *mac_addr;
4700 int err;
5727ef1b
JB		 4701
4702 memset(&params, 0, sizeof(params));
4703
77ee7c89
JB		 4704 if (!rdev->ops->change_station)
4705 return -EOPNOTSUPP;
4706
e4208427
AB		 4707 /*
4708 * AID and listen_interval properties can be set only for unassociated
4709 * station. Include these parameters here and will check them in
4710 * cfg80211_check_station_change().
4711 */
a9bc31e4
AB		 4712 if (info->attrs[NL80211_ATTR_STA_AID])
4713 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4714
4715 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4716 params.listen_interval =
4717 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4718 else
4719 params.listen_interval = -1;
5727ef1b 4720
17b94247
AB		 4721 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4722 u8 tmp;
4723
4724 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4725 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4726 return -EINVAL;
4727
4728 params.support_p2p_ps = tmp;
4729 } else {
4730 params.support_p2p_ps = -1;
4731 }
4732
5727ef1b
JB		 4733 if (!info->attrs[NL80211_ATTR_MAC])
4734 return -EINVAL;
4735
4736 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4737
4738 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4739 params.supported_rates =
4740 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4741 params.supported_rates_len =
4742 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4743 }
4744
9d62a986
JM		 4745 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4746 params.capability =
4747 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4748 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4749 }
4750
4751 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4752 params.ext_capab =
4753 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4754 params.ext_capab_len =
4755 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4756 }
4757
bdd3ae3d 4758 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4759 return -EINVAL;
4760
f8bacc21 4761 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4762 params.plink_action =
f8bacc21
JB		 4763 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4764 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4765 return -EINVAL;
4766 }
2ec600d6 4767
f8bacc21 4768 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4769 params.plink_state =
f8bacc21
JB		 4770 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4771 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4772 return -EINVAL;
7d27a0ba
MH		 4773 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4774 params.peer_aid = nla_get_u16(
4775 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4776 if (params.peer_aid > IEEE80211_MAX_AID)
4777 return -EINVAL;
4778 }
f8bacc21
JB		 4779 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4780 }
9c3990aa 4781
3b1c5a53
MP		 4782 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4783 enum nl80211_mesh_power_mode pm = nla_get_u32(
4784 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4785
4786 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4787 pm > NL80211_MESH_POWER_MAX)
4788 return -EINVAL;
4789
4790 params.local_pm = pm;
4791 }
4792
77ee7c89
JB		 4793 /* Include parameters for TDLS peer (will check later) */
4794 err = nl80211_set_station_tdls(info, &params);
4795 if (err)
4796 return err;
4797
4798 params.vlan = get_vlan(info, rdev);
4799 if (IS_ERR(params.vlan))
4800 return PTR_ERR(params.vlan);
4801
a97f4424
JB		 4802 switch (dev->ieee80211_ptr->iftype) {
4803 case NL80211_IFTYPE_AP:
4804 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4805 case NL80211_IFTYPE_P2P_GO:
074ac8df 4806 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4807 case NL80211_IFTYPE_STATION:
267335d6 4808 case NL80211_IFTYPE_ADHOC:
a97f4424 4809 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4810 break;
4811 default:
77ee7c89
JB		 4812 err = -EOPNOTSUPP;
4813 goto out_put_vlan;
034d655e
JB		 4814 }
4815
77ee7c89 4816 /* driver will call cfg80211_check_station_change() */
e35e4d28 4817 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4818
77ee7c89 4819 out_put_vlan:
5727ef1b
JB		 4820 if (params.vlan)
4821 dev_put(params.vlan);
3b85875a 4822
5727ef1b
JB		 4823 return err;
4824}
4825
4826static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4827{
4c476991 4828 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4829 int err;
4c476991 4830 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4831 struct station_parameters params;
4832 u8 *mac_addr = NULL;
bda95eb1
JB		 4833 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4834 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 4835
4836 memset(&params, 0, sizeof(params));
4837
984c311b
JB		 4838 if (!rdev->ops->add_station)
4839 return -EOPNOTSUPP;
4840
5727ef1b
JB		 4841 if (!info->attrs[NL80211_ATTR_MAC])
4842 return -EINVAL;
4843
5727ef1b
JB		 4844 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4845 return -EINVAL;
4846
4847 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4848 return -EINVAL;
4849
5e4b6f56
JM		 4850 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4851 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4852 return -EINVAL;
4853
5727ef1b
JB		 4854 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4855 params.supported_rates =
4856 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4857 params.supported_rates_len =
4858 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4859 params.listen_interval =
4860 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4861
17b94247
AB		 4862 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4863 u8 tmp;
4864
4865 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4866 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4867 return -EINVAL;
4868
4869 params.support_p2p_ps = tmp;
4870 } else {
4871 /*
4872 * if not specified, assume it's supported for P2P GO interface,
4873 * and is NOT supported for AP interface
4874 */
4875 params.support_p2p_ps =
4876 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
4877 }
4878
3d124ea2 4879 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4880 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4881 else
4882 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4883 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4884 return -EINVAL;
51b50fbe 4885
9d62a986
JM		 4886 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4887 params.capability =
4888 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4889 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4890 }
4891
4892 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4893 params.ext_capab =
4894 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4895 params.ext_capab_len =
4896 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4897 }
4898
36aedc90
JM		 4899 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4900 params.ht_capa =
4901 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4902
f461be3e
MP		 4903 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4904 params.vht_capa =
4905 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4906
60f4a7b1
MK		 4907 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4908 params.opmode_notif_used = true;
4909 params.opmode_notif =
4910 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4911 }
4912
f8bacc21 4913 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4914 params.plink_action =
f8bacc21
JB		 4915 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4916 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4917 return -EINVAL;
4918 }
96b78dff 4919
c01fc9ad
SD		 4920 err = nl80211_parse_sta_channel_info(info, &params);
4921 if (err)
4922 return err;
4923
ff276691
JB		 4924 err = nl80211_parse_sta_wme(info, &params);
4925 if (err)
4926 return err;
bdd90d5e 4927
bdd3ae3d 4928 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4929 return -EINVAL;
4930
496fcc29
JB		 4931 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4932 * as userspace might just pass through the capabilities from the IEs
4933 * directly, rather than enforcing this restriction and returning an
4934 * error in this case.
4935 */
4936 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4937 params.ht_capa = NULL;
4938 params.vht_capa = NULL;
4939 }
4940
77ee7c89
JB		 4941 /* When you run into this, adjust the code below for the new flag */
4942 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4943
bdd90d5e
JB		 4944 switch (dev->ieee80211_ptr->iftype) {
4945 case NL80211_IFTYPE_AP:
4946 case NL80211_IFTYPE_AP_VLAN:
4947 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4948 /* ignore WME attributes if iface/sta is not capable */
4949 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4950 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4951 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4952
bdd90d5e 4953 /* TDLS peers cannot be added */
3d124ea2
JM		 4954 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4955 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4956 return -EINVAL;
bdd90d5e
JB		 4957 /* but don't bother the driver with it */
4958 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4959
d582cffb
JB		 4960 /* allow authenticated/associated only if driver handles it */
4961 if (!(rdev->wiphy.features &
4962 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 4963 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 4964 return -EINVAL;
4965
bda95eb1
JB		 4966 /* Older userspace, or userspace wanting to be compatible with
4967 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
4968 * and assoc flags in the mask, but assumes the station will be
4969 * added as associated anyway since this was the required driver
4970 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
4971 * introduced.
4972 * In order to not bother drivers with this quirk in the API
4973 * set the flags in both the mask and set for new stations in
4974 * this case.
4975 */
4976 if (!(params.sta_flags_mask & auth_assoc)) {
4977 params.sta_flags_mask |= auth_assoc;
4978 params.sta_flags_set |= auth_assoc;
4979 }
4980
bdd90d5e
JB		 4981 /* must be last in here for error handling */
4982 params.vlan = get_vlan(info, rdev);
4983 if (IS_ERR(params.vlan))
4984 return PTR_ERR(params.vlan);
4985 break;
4986 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4987 /* ignore uAPSD data */
4988 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4989
d582cffb
JB		 4990 /* associated is disallowed */
4991 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4992 return -EINVAL;
bdd90d5e 4993 /* TDLS peers cannot be added */
3d124ea2
JM		 4994 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4995 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4996 return -EINVAL;
4997 break;
4998 case NL80211_IFTYPE_STATION:
93d08f0b 4999 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 5000 /* ignore uAPSD data */
5001 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5002
77ee7c89
JB		 5003 /* these are disallowed */
5004 if (params.sta_flags_mask &
5005 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
5006 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 5007 return -EINVAL;
bdd90d5e
JB		 5008 /* Only TDLS peers can be added */
5009 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
5010 return -EINVAL;
5011 /* Can only add if TDLS ... */
5012 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
5013 return -EOPNOTSUPP;
5014 /* ... with external setup is supported */
5015 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
5016 return -EOPNOTSUPP;
77ee7c89
JB		 5017 /*
5018 * Older wpa_supplicant versions always mark the TDLS peer
5019 * as authorized, but it shouldn't yet be.
5020 */
5021 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 5022 break;
5023 default:
5024 return -EOPNOTSUPP;
c75786c9
EP		 5025 }
5026
bdd90d5e 5027 /* be aware of params.vlan when changing code here */
5727ef1b 5028
e35e4d28 5029 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 5030
5727ef1b
JB		 5031 if (params.vlan)
5032 dev_put(params.vlan);
5727ef1b
JB		 5033 return err;
5034}
5035
5036static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
5037{
4c476991
JB		 5038 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5039 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 5040 struct station_del_parameters params;
5041
5042 memset(&params, 0, sizeof(params));
5727ef1b
JB		 5043
5044 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 5045 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 5046
e80cf853 5047 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 5048 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 5049 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5050 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5051 return -EINVAL;
5727ef1b 5052
4c476991
JB		 5053 if (!rdev->ops->del_station)
5054 return -EOPNOTSUPP;
3b85875a 5055
98856866
JM		 5056 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
5057 params.subtype =
5058 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
5059 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
5060 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
5061 return -EINVAL;
5062 } else {
5063 /* Default to Deauthentication frame */
5064 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
5065 }
5066
5067 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
5068 params.reason_code =
5069 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5070 if (params.reason_code == 0)
5071 return -EINVAL; /* 0 is reserved */
5072 } else {
5073 /* Default to reason code 2 */
5074 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
5075 }
5076
89c771e5 5077 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 5078}
5079
15e47304 5080static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 5081 int flags, struct net_device *dev,
5082 u8 *dst, u8 *next_hop,
5083 struct mpath_info *pinfo)
5084{
5085 void *hdr;
5086 struct nlattr *pinfoattr;
5087
1ef4c850 5088 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 5089 if (!hdr)
5090 return -1;
5091
9360ffd1
DM		 5092 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5093 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
5094 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
5095 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
5096 goto nla_put_failure;
f5ea9120 5097
2ec600d6
LCC		 5098 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
5099 if (!pinfoattr)
5100 goto nla_put_failure;
9360ffd1
DM		 5101 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
5102 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
5103 pinfo->frame_qlen))
5104 goto nla_put_failure;
5105 if (((pinfo->filled & MPATH_INFO_SN) &&
5106 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
5107 ((pinfo->filled & MPATH_INFO_METRIC) &&
5108 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
5109 pinfo->metric)) ||
5110 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
5111 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
5112 pinfo->exptime)) ||
5113 ((pinfo->filled & MPATH_INFO_FLAGS) &&
5114 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
5115 pinfo->flags)) ||
5116 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
5117 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
5118 pinfo->discovery_timeout)) ||
5119 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
5120 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
5121 pinfo->discovery_retries)))
5122 goto nla_put_failure;
2ec600d6
LCC		 5123
5124 nla_nest_end(msg, pinfoattr);
5125
053c095a
JB		 5126 genlmsg_end(msg, hdr);
5127 return 0;
2ec600d6
LCC		 5128
5129 nla_put_failure:
bc3ed28c
TG		 5130 genlmsg_cancel(msg, hdr);
5131 return -EMSGSIZE;
2ec600d6
LCC		 5132}
5133
5134static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 5135 struct netlink_callback *cb)
2ec600d6 5136{
2ec600d6 5137 struct mpath_info pinfo;
1b8ec87a 5138 struct cfg80211_registered_device *rdev;
97990a06 5139 struct wireless_dev *wdev;
2ec600d6
LCC		 5140 u8 dst[ETH_ALEN];
5141 u8 next_hop[ETH_ALEN];
97990a06 5142 int path_idx = cb->args[2];
2ec600d6 5143 int err;
2ec600d6 5144
1b8ec87a 5145 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5146 if (err)
5147 return err;
bba95fef 5148
1b8ec87a 5149 if (!rdev->ops->dump_mpath) {
eec60b03 5150 err = -EOPNOTSUPP;
bba95fef
JB		 5151 goto out_err;
5152 }
5153
97990a06 5154 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 5155 err = -EOPNOTSUPP;
0448b5fc 5156 goto out_err;
eec60b03
JM		 5157 }
5158
bba95fef 5159 while (1) {
1b8ec87a 5160 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 5161 next_hop, &pinfo);
bba95fef 5162 if (err == -ENOENT)
2ec600d6 5163 break;
bba95fef 5164 if (err)
3b85875a 5165 goto out_err;
2ec600d6 5166
15e47304 5167 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 5168 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5169 wdev->netdev, dst, next_hop,
bba95fef
JB		 5170 &pinfo) < 0)
5171 goto out;
2ec600d6 5172
bba95fef 5173 path_idx++;
2ec600d6 5174 }
2ec600d6 5175
bba95fef 5176 out:
97990a06 5177 cb->args[2] = path_idx;
bba95fef 5178 err = skb->len;
bba95fef 5179 out_err:
1b8ec87a 5180 nl80211_finish_wdev_dump(rdev);
bba95fef 5181 return err;
2ec600d6
LCC		 5182}
5183
5184static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
5185{
4c476991 5186 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 5187 int err;
4c476991 5188 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5189 struct mpath_info pinfo;
5190 struct sk_buff *msg;
5191 u8 *dst = NULL;
5192 u8 next_hop[ETH_ALEN];
5193
5194 memset(&pinfo, 0, sizeof(pinfo));
5195
5196 if (!info->attrs[NL80211_ATTR_MAC])
5197 return -EINVAL;
5198
5199 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5200
4c476991
JB		 5201 if (!rdev->ops->get_mpath)
5202 return -EOPNOTSUPP;
2ec600d6 5203
4c476991
JB		 5204 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5205 return -EOPNOTSUPP;
eec60b03 5206
e35e4d28 5207 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 5208 if (err)
4c476991 5209 return err;
2ec600d6 5210
fd2120ca 5211 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 5212 if (!msg)
4c476991 5213 return -ENOMEM;
2ec600d6 5214
15e47304 5215 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 5216 dev, dst, next_hop, &pinfo) < 0) {
5217 nlmsg_free(msg);
5218 return -ENOBUFS;
5219 }
3b85875a 5220
4c476991 5221 return genlmsg_reply(msg, info);
2ec600d6
LCC		 5222}
5223
5224static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
5225{
4c476991
JB		 5226 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5227 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5228 u8 *dst = NULL;
5229 u8 *next_hop = NULL;
5230
5231 if (!info->attrs[NL80211_ATTR_MAC])
5232 return -EINVAL;
5233
5234 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5235 return -EINVAL;
5236
5237 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5238 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5239
4c476991
JB		 5240 if (!rdev->ops->change_mpath)
5241 return -EOPNOTSUPP;
35a8efe1 5242
4c476991
JB		 5243 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5244 return -EOPNOTSUPP;
2ec600d6 5245
e35e4d28 5246 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 5247}
4c476991 5248
2ec600d6
LCC		 5249static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
5250{
4c476991
JB		 5251 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5252 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5253 u8 *dst = NULL;
5254 u8 *next_hop = NULL;
5255
5256 if (!info->attrs[NL80211_ATTR_MAC])
5257 return -EINVAL;
5258
5259 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5260 return -EINVAL;
5261
5262 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5263 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5264
4c476991
JB		 5265 if (!rdev->ops->add_mpath)
5266 return -EOPNOTSUPP;
35a8efe1 5267
4c476991
JB		 5268 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5269 return -EOPNOTSUPP;
2ec600d6 5270
e35e4d28 5271 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 5272}
5273
5274static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
5275{
4c476991
JB		 5276 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5277 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5278 u8 *dst = NULL;
5279
5280 if (info->attrs[NL80211_ATTR_MAC])
5281 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5282
4c476991
JB		 5283 if (!rdev->ops->del_mpath)
5284 return -EOPNOTSUPP;
3b85875a 5285
e35e4d28 5286 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 5287}
5288
66be7d2b
HR		 5289static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
5290{
5291 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5292 int err;
5293 struct net_device *dev = info->user_ptr[1];
5294 struct mpath_info pinfo;
5295 struct sk_buff *msg;
5296 u8 *dst = NULL;
5297 u8 mpp[ETH_ALEN];
5298
5299 memset(&pinfo, 0, sizeof(pinfo));
5300
5301 if (!info->attrs[NL80211_ATTR_MAC])
5302 return -EINVAL;
5303
5304 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5305
5306 if (!rdev->ops->get_mpp)
5307 return -EOPNOTSUPP;
5308
5309 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5310 return -EOPNOTSUPP;
5311
5312 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5313 if (err)
5314 return err;
5315
5316 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5317 if (!msg)
5318 return -ENOMEM;
5319
5320 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5321 dev, dst, mpp, &pinfo) < 0) {
5322 nlmsg_free(msg);
5323 return -ENOBUFS;
5324 }
5325
5326 return genlmsg_reply(msg, info);
5327}
5328
5329static int nl80211_dump_mpp(struct sk_buff *skb,
5330 struct netlink_callback *cb)
5331{
5332 struct mpath_info pinfo;
5333 struct cfg80211_registered_device *rdev;
5334 struct wireless_dev *wdev;
5335 u8 dst[ETH_ALEN];
5336 u8 mpp[ETH_ALEN];
5337 int path_idx = cb->args[2];
5338 int err;
5339
5340 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5341 if (err)
5342 return err;
5343
5344 if (!rdev->ops->dump_mpp) {
5345 err = -EOPNOTSUPP;
5346 goto out_err;
5347 }
5348
5349 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5350 err = -EOPNOTSUPP;
5351 goto out_err;
5352 }
5353
5354 while (1) {
5355 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5356 mpp, &pinfo);
5357 if (err == -ENOENT)
5358 break;
5359 if (err)
5360 goto out_err;
5361
5362 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5363 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5364 wdev->netdev, dst, mpp,
5365 &pinfo) < 0)
5366 goto out;
5367
5368 path_idx++;
5369 }
5370
5371 out:
5372 cb->args[2] = path_idx;
5373 err = skb->len;
5374 out_err:
5375 nl80211_finish_wdev_dump(rdev);
5376 return err;
5377}
5378
9f1ba906
JM		 5379static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5380{
4c476991
JB		 5381 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5382 struct net_device *dev = info->user_ptr[1];
c56589ed 5383 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 5384 struct bss_parameters params;
c56589ed 5385 int err;
9f1ba906
JM		 5386
5387 memset(&params, 0, sizeof(params));
5388 /* default to not changing parameters */
5389 params.use_cts_prot = -1;
5390 params.use_short_preamble = -1;
5391 params.use_short_slot_time = -1;
fd8aaaf3 5392 params.ap_isolate = -1;
50b12f59 5393 params.ht_opmode = -1;
53cabad7
JB		 5394 params.p2p_ctwindow = -1;
5395 params.p2p_opp_ps = -1;
9f1ba906
JM		 5396
5397 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5398 params.use_cts_prot =
5399 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5400 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5401 params.use_short_preamble =
5402 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5403 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5404 params.use_short_slot_time =
5405 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 5406 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5407 params.basic_rates =
5408 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5409 params.basic_rates_len =
5410 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5411 }
fd8aaaf3
FF		 5412 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5413 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 5414 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5415 params.ht_opmode =
5416 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 5417
53cabad7
JB		 5418 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5419 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5420 return -EINVAL;
5421 params.p2p_ctwindow =
5422 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5423 if (params.p2p_ctwindow < 0)
5424 return -EINVAL;
5425 if (params.p2p_ctwindow != 0 &&
5426 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5427 return -EINVAL;
5428 }
5429
5430 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5431 u8 tmp;
5432
5433 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5434 return -EINVAL;
5435 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5436 if (tmp > 1)
5437 return -EINVAL;
5438 params.p2p_opp_ps = tmp;
5439 if (params.p2p_opp_ps &&
5440 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5441 return -EINVAL;
5442 }
5443
4c476991
JB		 5444 if (!rdev->ops->change_bss)
5445 return -EOPNOTSUPP;
9f1ba906 5446
074ac8df 5447 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5448 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5449 return -EOPNOTSUPP;
3b85875a 5450
c56589ed
SW		 5451 wdev_lock(wdev);
5452 err = rdev_change_bss(rdev, dev, &params);
5453 wdev_unlock(wdev);
5454
5455 return err;
9f1ba906
JM		 5456}
5457
b2e1b302
LR		 5458static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5459{
b2e1b302 5460 char *data = NULL;
05050753 5461 bool is_indoor;
57b5ce07 5462 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5463 u32 owner_nlportid;
5464
80778f18
LR		 5465 /*
5466 * You should only get this when cfg80211 hasn't yet initialized
5467 * completely when built-in to the kernel right between the time
5468 * window between nl80211_init() and regulatory_init(), if that is
5469 * even possible.
5470 */
458f4f9e 5471 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5472 return -EINPROGRESS;
80778f18 5473
57b5ce07
LR		 5474 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5475 user_reg_hint_type =
5476 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5477 else
5478 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5479
5480 switch (user_reg_hint_type) {
5481 case NL80211_USER_REG_HINT_USER:
5482 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5483 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5484 return -EINVAL;
5485
5486 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5487 return regulatory_hint_user(data, user_reg_hint_type);
5488 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5489 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5490 owner_nlportid = info->snd_portid;
5491 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5492 } else {
5493 owner_nlportid = 0;
5494 is_indoor = true;
5495 }
5496
5497 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5498 default:
5499 return -EINVAL;
5500 }
b2e1b302
LR		 5501}
5502
24bdd9f4 5503static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5504 struct genl_info *info)
93da9cc1 5505{
4c476991 5506 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5507 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5508 struct wireless_dev *wdev = dev->ieee80211_ptr;
5509 struct mesh_config cur_params;
5510 int err = 0;
93da9cc1 5511 void *hdr;
5512 struct nlattr *pinfoattr;
5513 struct sk_buff *msg;
5514
29cbe68c
JB		 5515 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5516 return -EOPNOTSUPP;
5517
24bdd9f4 5518 if (!rdev->ops->get_mesh_config)
4c476991 5519 return -EOPNOTSUPP;
f3f92586 5520
29cbe68c
JB		 5521 wdev_lock(wdev);
5522 /* If not connected, get default parameters */
5523 if (!wdev->mesh_id_len)
5524 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5525 else
e35e4d28 5526 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5527 wdev_unlock(wdev);
5528
93da9cc1 5529 if (err)
4c476991 5530 return err;
93da9cc1 5531
5532 /* Draw up a netlink message to send back */
fd2120ca 5533 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5534 if (!msg)
5535 return -ENOMEM;
15e47304 5536 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5537 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5538 if (!hdr)
efe1cf0c 5539 goto out;
24bdd9f4 5540 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5541 if (!pinfoattr)
5542 goto nla_put_failure;
9360ffd1
DM		 5543 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5544 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5545 cur_params.dot11MeshRetryTimeout) ||
5546 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5547 cur_params.dot11MeshConfirmTimeout) ||
5548 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5549 cur_params.dot11MeshHoldingTimeout) ||
5550 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5551 cur_params.dot11MeshMaxPeerLinks) ||
5552 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5553 cur_params.dot11MeshMaxRetries) ||
5554 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5555 cur_params.dot11MeshTTL) ||
5556 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5557 cur_params.element_ttl) ||
5558 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5559 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5560 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5561 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5562 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5563 cur_params.dot11MeshHWMPmaxPREQretries) ||
5564 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5565 cur_params.path_refresh_time) ||
5566 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5567 cur_params.min_discovery_timeout) ||
5568 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5569 cur_params.dot11MeshHWMPactivePathTimeout) ||
5570 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5571 cur_params.dot11MeshHWMPpreqMinInterval) ||
5572 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5573 cur_params.dot11MeshHWMPperrMinInterval) ||
5574 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5575 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5576 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5577 cur_params.dot11MeshHWMPRootMode) ||
5578 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5579 cur_params.dot11MeshHWMPRannInterval) ||
5580 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5581 cur_params.dot11MeshGateAnnouncementProtocol) ||
5582 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5583 cur_params.dot11MeshForwarding) ||
5584 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5585 cur_params.rssi_threshold) ||
5586 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5587 cur_params.ht_opmode) ||
5588 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5589 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5590 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5591 cur_params.dot11MeshHWMProotInterval) ||
5592 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5593 cur_params.dot11MeshHWMPconfirmationInterval) ||
5594 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5595 cur_params.power_mode) ||
5596 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5597 cur_params.dot11MeshAwakeWindowDuration) ||
5598 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5599 cur_params.plink_timeout))
9360ffd1 5600 goto nla_put_failure;
93da9cc1 5601 nla_nest_end(msg, pinfoattr);
5602 genlmsg_end(msg, hdr);
4c476991 5603 return genlmsg_reply(msg, info);
93da9cc1 5604
3b85875a 5605 nla_put_failure:
93da9cc1 5606 genlmsg_cancel(msg, hdr);
efe1cf0c 5607 out:
d080e275 5608 nlmsg_free(msg);
4c476991 5609 return -ENOBUFS;
93da9cc1 5610}
5611
b54452b0 5612static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5613 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5614 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5615 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5616 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5617 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5618 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5619 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5620 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5621 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5622 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5623 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5624 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5625 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5626 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5627 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5628 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5629 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5630 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5631 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5632 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5633 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5634 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5635 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5636 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5637 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5638 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5639 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5640 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5641};
5642
c80d545d
JC		 5643static const struct nla_policy
5644 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5645 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5646 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5647 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5648 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5649 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5650 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5651 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5652 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5653 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5654};
5655
f151d9db
AB		 5656static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5657{
5658 u8 val = nla_get_u8(nla);
5659 if (val < min || val > max)
5660 return -EINVAL;
5661 *out = val;
5662 return 0;
5663}
5664
5665static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5666{
5667 u8 val = nla_get_u8(nla);
5668 if (val < min || val > max)
5669 return -EINVAL;
5670 *out = val;
5671 return 0;
5672}
5673
5674static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5675{
5676 u16 val = nla_get_u16(nla);
5677 if (val < min || val > max)
5678 return -EINVAL;
5679 *out = val;
5680 return 0;
5681}
5682
5683static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5684{
5685 u32 val = nla_get_u32(nla);
5686 if (val < min || val > max)
5687 return -EINVAL;
5688 *out = val;
5689 return 0;
5690}
5691
5692static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5693{
5694 s32 val = nla_get_s32(nla);
5695 if (val < min || val > max)
5696 return -EINVAL;
5697 *out = val;
5698 return 0;
5699}
5700
ff9a71af
JB		 5701static int nl80211_check_power_mode(const struct nlattr *nla,
5702 enum nl80211_mesh_power_mode min,
5703 enum nl80211_mesh_power_mode max,
5704 enum nl80211_mesh_power_mode *out)
5705{
5706 u32 val = nla_get_u32(nla);
5707 if (val < min || val > max)
5708 return -EINVAL;
5709 *out = val;
5710 return 0;
5711}
5712
24bdd9f4 5713static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5714 struct mesh_config *cfg,
5715 u32 *mask_out)
93da9cc1 5716{
93da9cc1 5717 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5718 u32 mask = 0;
9757235f 5719 u16 ht_opmode;
93da9cc1 5720
ea54fba2
MP		 5721#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5722do { \
5723 if (tb[attr]) { \
f151d9db 5724 if (fn(tb[attr], min, max, &cfg->param)) \
ea54fba2 5725 return -EINVAL; \
ea54fba2
MP		 5726 mask |= (1 << (attr - 1)); \
5727 } \
5728} while (0)
bd90fdcc 5729
24bdd9f4 5730 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5731 return -EINVAL;
5732 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5733 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5734 nl80211_meshconf_params_policy))
93da9cc1 5735 return -EINVAL;
5736
93da9cc1 5737 /* This makes sure that there aren't more than 32 mesh config
5738 * parameters (otherwise our bitfield scheme would not work.) */
5739 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5740
5741 /* Fill in the params struct */
ea54fba2 5742 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea 5743 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
f151d9db 5744 nl80211_check_u16);
ea54fba2 5745 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea 5746 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
f151d9db 5747 nl80211_check_u16);
ea54fba2 5748 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea 5749 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
f151d9db 5750 nl80211_check_u16);
ea54fba2 5751 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea 5752 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
f151d9db 5753 nl80211_check_u16);
ea54fba2 5754 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea 5755 mask, NL80211_MESHCONF_MAX_RETRIES,
f151d9db 5756 nl80211_check_u8);
ea54fba2 5757 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
f151d9db 5758 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
ea54fba2 5759 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea 5760 mask, NL80211_MESHCONF_ELEMENT_TTL,
f151d9db 5761 nl80211_check_u8);
ea54fba2 5762 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea 5763 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
f151d9db 5764 nl80211_check_bool);
ea54fba2
MP		 5765 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5766 1, 255, mask,
a4f606ea 5767 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
f151d9db 5768 nl80211_check_u32);
ea54fba2 5769 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea 5770 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
f151d9db 5771 nl80211_check_u8);
ea54fba2 5772 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea 5773 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
f151d9db 5774 nl80211_check_u32);
ea54fba2 5775 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea 5776 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
f151d9db 5777 nl80211_check_u16);
ea54fba2
MP		 5778 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5779 1, 65535, mask,
a4f606ea 5780 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
f151d9db 5781 nl80211_check_u32);
93da9cc1 5782 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5783 1, 65535, mask,
5784 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
f151d9db 5785 nl80211_check_u16);
dca7e943 5786 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5787 1, 65535, mask,
5788 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
f151d9db 5789 nl80211_check_u16);
93da9cc1 5790 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5791 dot11MeshHWMPnetDiameterTraversalTime,
5792 1, 65535, mask,
a4f606ea 5793 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
f151d9db 5794 nl80211_check_u16);
ea54fba2
MP		 5795 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5796 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
f151d9db 5797 nl80211_check_u8);
ea54fba2
MP		 5798 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5799 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
f151d9db 5800 nl80211_check_u16);
63c5723b 5801 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5802 dot11MeshGateAnnouncementProtocol, 0, 1,
5803 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
f151d9db 5804 nl80211_check_bool);
ea54fba2 5805 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea 5806 mask, NL80211_MESHCONF_FORWARDING,
f151d9db 5807 nl80211_check_bool);
83374fe9 5808 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5809 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
f151d9db 5810 nl80211_check_s32);
9757235f
MH		 5811 /*
5812 * Check HT operation mode based on
5813 * IEEE 802.11 2012 8.4.2.59 HT Operation element.
5814 */
5815 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
5816 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
5817
5818 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
5819 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
5820 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5821 return -EINVAL;
5822
5823 if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
5824 (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5825 return -EINVAL;
5826
5827 switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
5828 case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
5829 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
5830 if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
5831 return -EINVAL;
5832 break;
5833 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
5834 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
5835 if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5836 return -EINVAL;
5837 break;
5838 }
5839 cfg->ht_opmode = ht_opmode;
5840 }
ac1073a6 5841 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5842 1, 65535, mask,
ac1073a6 5843 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
f151d9db 5844 nl80211_check_u32);
ea54fba2 5845 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5846 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
f151d9db 5847 nl80211_check_u16);
728b19e5 5848 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5849 dot11MeshHWMPconfirmationInterval,
5850 1, 65535, mask,
728b19e5 5851 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
f151d9db 5852 nl80211_check_u16);
3b1c5a53
MP		 5853 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5854 NL80211_MESH_POWER_ACTIVE,
5855 NL80211_MESH_POWER_MAX,
5856 mask, NL80211_MESHCONF_POWER_MODE,
ff9a71af 5857 nl80211_check_power_mode);
3b1c5a53
MP		 5858 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5859 0, 65535, mask,
f151d9db 5860 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
31f909a2 5861 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538 5862 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
f151d9db 5863 nl80211_check_u32);
bd90fdcc
JB		 5864 if (mask_out)
5865 *mask_out = mask;
c80d545d 5866
bd90fdcc
JB		 5867 return 0;
5868
5869#undef FILL_IN_MESH_PARAM_IF_SET
5870}
5871
c80d545d
JC		 5872static int nl80211_parse_mesh_setup(struct genl_info *info,
5873 struct mesh_setup *setup)
5874{
bb2798d4 5875 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5876 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5877
5878 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5879 return -EINVAL;
5880 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5881 info->attrs[NL80211_ATTR_MESH_SETUP],
5882 nl80211_mesh_setup_params_policy))
5883 return -EINVAL;
5884
d299a1f2
JC		 5885 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5886 setup->sync_method =
5887 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5888 IEEE80211_SYNC_METHOD_VENDOR :
5889 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5890
c80d545d
JC		 5891 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5892 setup->path_sel_proto =
5893 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5894 IEEE80211_PATH_PROTOCOL_VENDOR :
5895 IEEE80211_PATH_PROTOCOL_HWMP;
5896
5897 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5898 setup->path_metric =
5899 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5900 IEEE80211_PATH_METRIC_VENDOR :
5901 IEEE80211_PATH_METRIC_AIRTIME;
5902
581a8b0f 5903 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5904 struct nlattr *ieattr =
581a8b0f 5905 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5906 if (!is_valid_ie_attr(ieattr))
5907 return -EINVAL;
581a8b0f
JC		 5908 setup->ie = nla_data(ieattr);
5909 setup->ie_len = nla_len(ieattr);
c80d545d 5910 }
bb2798d4
TP		 5911 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5912 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5913 return -EINVAL;
5914 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5915 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5916 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5917 if (setup->is_secure)
5918 setup->user_mpm = true;
c80d545d 5919
6e16d90b
CT		 5920 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5921 if (!setup->user_mpm)
5922 return -EINVAL;
5923 setup->auth_id =
5924 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5925 }
5926
c80d545d
JC		 5927 return 0;
5928}
5929
24bdd9f4 5930static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5931 struct genl_info *info)
bd90fdcc
JB		 5932{
5933 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5934 struct net_device *dev = info->user_ptr[1];
29cbe68c 5935 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5936 struct mesh_config cfg;
5937 u32 mask;
5938 int err;
5939
29cbe68c
JB		 5940 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5941 return -EOPNOTSUPP;
5942
24bdd9f4 5943 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5944 return -EOPNOTSUPP;
5945
24bdd9f4 5946 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5947 if (err)
5948 return err;
5949
29cbe68c
JB		 5950 wdev_lock(wdev);
5951 if (!wdev->mesh_id_len)
5952 err = -ENOLINK;
5953
5954 if (!err)
e35e4d28 5955 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5956
5957 wdev_unlock(wdev);
5958
5959 return err;
93da9cc1 5960}
5961
ad30ca2c
AN		 5962static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5963 struct sk_buff *msg)
f130347c 5964{
f130347c
LR		 5965 struct nlattr *nl_reg_rules;
5966 unsigned int i;
f130347c 5967
458f4f9e
JB		 5968 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5969 (regdom->dfs_region &&
5970 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5971 goto nla_put_failure;
458f4f9e 5972
f130347c
LR		 5973 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5974 if (!nl_reg_rules)
ad30ca2c 5975 goto nla_put_failure;
f130347c 5976
458f4f9e 5977 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5978 struct nlattr *nl_reg_rule;
5979 const struct ieee80211_reg_rule *reg_rule;
5980 const struct ieee80211_freq_range *freq_range;
5981 const struct ieee80211_power_rule *power_rule;
97524820 5982 unsigned int max_bandwidth_khz;
f130347c 5983
458f4f9e 5984 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5985 freq_range = &reg_rule->freq_range;
5986 power_rule = &reg_rule->power_rule;
5987
5988 nl_reg_rule = nla_nest_start(msg, i);
5989 if (!nl_reg_rule)
ad30ca2c 5990 goto nla_put_failure;
f130347c 5991
97524820
JD		 5992 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5993 if (!max_bandwidth_khz)
5994 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5995 reg_rule);
5996
9360ffd1
DM		 5997 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5998 reg_rule->flags) ||
5999 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
6000 freq_range->start_freq_khz) ||
6001 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
6002 freq_range->end_freq_khz) ||
6003 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 6004 max_bandwidth_khz) ||
9360ffd1
DM		 6005 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
6006 power_rule->max_antenna_gain) ||
6007 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 6008 power_rule->max_eirp) ||
6009 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
6010 reg_rule->dfs_cac_ms))
ad30ca2c 6011 goto nla_put_failure;
f130347c
LR		 6012
6013 nla_nest_end(msg, nl_reg_rule);
6014 }
6015
6016 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 6017 return 0;
6018
6019nla_put_failure:
6020 return -EMSGSIZE;
6021}
6022
6023static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
6024{
6025 const struct ieee80211_regdomain *regdom = NULL;
6026 struct cfg80211_registered_device *rdev;
6027 struct wiphy *wiphy = NULL;
6028 struct sk_buff *msg;
6029 void *hdr;
6030
6031 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6032 if (!msg)
6033 return -ENOBUFS;
6034
6035 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6036 NL80211_CMD_GET_REG);
6037 if (!hdr)
6038 goto put_failure;
6039
6040 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 6041 bool self_managed;
6042
ad30ca2c
AN		 6043 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6044 if (IS_ERR(rdev)) {
6045 nlmsg_free(msg);
6046 return PTR_ERR(rdev);
6047 }
6048
6049 wiphy = &rdev->wiphy;
1bdd716c
AN		 6050 self_managed = wiphy->regulatory_flags &
6051 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 6052 regdom = get_wiphy_regdom(wiphy);
6053
1bdd716c
AN		 6054 /* a self-managed-reg device must have a private regdom */
6055 if (WARN_ON(!regdom && self_managed)) {
6056 nlmsg_free(msg);
6057 return -EINVAL;
6058 }
6059
ad30ca2c
AN		 6060 if (regdom &&
6061 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6062 goto nla_put_failure;
6063 }
6064
6065 if (!wiphy && reg_last_request_cell_base() &&
6066 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6067 NL80211_USER_REG_HINT_CELL_BASE))
6068 goto nla_put_failure;
6069
6070 rcu_read_lock();
6071
6072 if (!regdom)
6073 regdom = rcu_dereference(cfg80211_regdomain);
6074
6075 if (nl80211_put_regdom(regdom, msg))
6076 goto nla_put_failure_rcu;
6077
6078 rcu_read_unlock();
f130347c
LR		 6079
6080 genlmsg_end(msg, hdr);
5fe231e8 6081 return genlmsg_reply(msg, info);
f130347c 6082
458f4f9e
JB		 6083nla_put_failure_rcu:
6084 rcu_read_unlock();
f130347c
LR		 6085nla_put_failure:
6086 genlmsg_cancel(msg, hdr);
efe1cf0c 6087put_failure:
d080e275 6088 nlmsg_free(msg);
5fe231e8 6089 return -EMSGSIZE;
f130347c
LR		 6090}
6091
ad30ca2c
AN		 6092static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
6093 u32 seq, int flags, struct wiphy *wiphy,
6094 const struct ieee80211_regdomain *regdom)
6095{
6096 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6097 NL80211_CMD_GET_REG);
6098
6099 if (!hdr)
6100 return -1;
6101
6102 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6103
6104 if (nl80211_put_regdom(regdom, msg))
6105 goto nla_put_failure;
6106
6107 if (!wiphy && reg_last_request_cell_base() &&
6108 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6109 NL80211_USER_REG_HINT_CELL_BASE))
6110 goto nla_put_failure;
6111
6112 if (wiphy &&
6113 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6114 goto nla_put_failure;
6115
1bdd716c
AN		 6116 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
6117 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
6118 goto nla_put_failure;
6119
053c095a
JB		 6120 genlmsg_end(msg, hdr);
6121 return 0;
ad30ca2c
AN		 6122
6123nla_put_failure:
6124 genlmsg_cancel(msg, hdr);
6125 return -EMSGSIZE;
6126}
6127
6128static int nl80211_get_reg_dump(struct sk_buff *skb,
6129 struct netlink_callback *cb)
6130{
6131 const struct ieee80211_regdomain *regdom = NULL;
6132 struct cfg80211_registered_device *rdev;
6133 int err, reg_idx, start = cb->args[2];
6134
6135 rtnl_lock();
6136
6137 if (cfg80211_regdomain && start == 0) {
6138 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6139 NLM_F_MULTI, NULL,
6140 rtnl_dereference(cfg80211_regdomain));
6141 if (err < 0)
6142 goto out_err;
6143 }
6144
6145 /* the global regdom is idx 0 */
6146 reg_idx = 1;
6147 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
6148 regdom = get_wiphy_regdom(&rdev->wiphy);
6149 if (!regdom)
6150 continue;
6151
6152 if (++reg_idx <= start)
6153 continue;
6154
6155 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6156 NLM_F_MULTI, &rdev->wiphy, regdom);
6157 if (err < 0) {
6158 reg_idx--;
6159 break;
6160 }
6161 }
6162
6163 cb->args[2] = reg_idx;
6164 err = skb->len;
6165out_err:
6166 rtnl_unlock();
6167 return err;
6168}
6169
b6863036
JB		 6170#ifdef CONFIG_CFG80211_CRDA_SUPPORT
6171static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
6172 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6173 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6174 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6175 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6176 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6177 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6178 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
6179};
6180
6181static int parse_reg_rule(struct nlattr *tb[],
6182 struct ieee80211_reg_rule *reg_rule)
6183{
6184 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
6185 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
6186
6187 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
6188 return -EINVAL;
6189 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
6190 return -EINVAL;
6191 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
6192 return -EINVAL;
6193 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6194 return -EINVAL;
6195 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6196 return -EINVAL;
6197
6198 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
6199
6200 freq_range->start_freq_khz =
6201 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
6202 freq_range->end_freq_khz =
6203 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
6204 freq_range->max_bandwidth_khz =
6205 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
6206
6207 power_rule->max_eirp =
6208 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
6209
6210 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
6211 power_rule->max_antenna_gain =
6212 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
6213
6214 if (tb[NL80211_ATTR_DFS_CAC_TIME])
6215 reg_rule->dfs_cac_ms =
6216 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
6217
6218 return 0;
6219}
6220
b2e1b302
LR		 6221static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
6222{
6223 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
6224 struct nlattr *nl_reg_rule;
ea372c54
JB		 6225 char *alpha2;
6226 int rem_reg_rules, r;
b2e1b302 6227 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 6228 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 6229 struct ieee80211_regdomain *rd;
b2e1b302
LR		 6230
6231 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6232 return -EINVAL;
6233
6234 if (!info->attrs[NL80211_ATTR_REG_RULES])
6235 return -EINVAL;
6236
6237 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6238
8b60b078
LR		 6239 if (info->attrs[NL80211_ATTR_DFS_REGION])
6240 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
6241
b2e1b302 6242 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6243 rem_reg_rules) {
b2e1b302
LR		 6244 num_rules++;
6245 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 6246 return -EINVAL;
b2e1b302
LR		 6247 }
6248
e438768f
LR		 6249 if (!reg_is_valid_request(alpha2))
6250 return -EINVAL;
6251
b2e1b302 6252 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 6253 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 6254
6255 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 6256 if (!rd)
6257 return -ENOMEM;
b2e1b302
LR		 6258
6259 rd->n_reg_rules = num_rules;
6260 rd->alpha2[0] = alpha2[0];
6261 rd->alpha2[1] = alpha2[1];
6262
8b60b078
LR		 6263 /*
6264 * Disable DFS master mode if the DFS region was
6265 * not supported or known on this kernel.
6266 */
6267 if (reg_supported_dfs_region(dfs_region))
6268 rd->dfs_region = dfs_region;
6269
b2e1b302 6270 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6271 rem_reg_rules) {
ae811e21
JB		 6272 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
6273 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
6274 reg_rule_policy);
6275 if (r)
6276 goto bad_reg;
b2e1b302
LR		 6277 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
6278 if (r)
6279 goto bad_reg;
6280
6281 rule_idx++;
6282
d0e18f83
LR		 6283 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
6284 r = -EINVAL;
b2e1b302 6285 goto bad_reg;
d0e18f83 6286 }
b2e1b302
LR		 6287 }
6288
06627990
JB		 6289 /* set_regdom takes ownership of rd */
6290 return set_regdom(rd, REGD_SOURCE_CRDA);
d2372b31 6291 bad_reg:
b2e1b302 6292 kfree(rd);
d0e18f83 6293 return r;
b2e1b302 6294}
b6863036 6295#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 6296
83f5e2cf
JB		 6297static int validate_scan_freqs(struct nlattr *freqs)
6298{
6299 struct nlattr *attr1, *attr2;
6300 int n_channels = 0, tmp1, tmp2;
6301
6302 nla_for_each_nested(attr1, freqs, tmp1) {
6303 n_channels++;
6304 /*
6305 * Some hardware has a limited channel list for
6306 * scanning, and it is pretty much nonsensical
6307 * to scan for a channel twice, so disallow that
6308 * and don't require drivers to check that the
6309 * channel list they get isn't longer than what
6310 * they can scan, as long as they can scan all
6311 * the channels they registered at once.
6312 */
6313 nla_for_each_nested(attr2, freqs, tmp2)
6314 if (attr1 != attr2 &&
6315 nla_get_u32(attr1) == nla_get_u32(attr2))
6316 return 0;
6317 }
6318
6319 return n_channels;
6320}
6321
57fbcce3 6322static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
38de03d2 6323{
57fbcce3 6324 return b < NUM_NL80211_BANDS && wiphy->bands[b];
38de03d2
AS		 6325}
6326
6327static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6328 struct cfg80211_bss_selection *bss_select)
6329{
6330 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6331 struct nlattr *nest;
6332 int err;
6333 bool found = false;
6334 int i;
6335
6336 /* only process one nested attribute */
6337 nest = nla_data(nla);
6338 if (!nla_ok(nest, nla_len(nest)))
6339 return -EINVAL;
6340
6341 err = nla_parse(attr, NL80211_BSS_SELECT_ATTR_MAX, nla_data(nest),
6342 nla_len(nest), nl80211_bss_select_policy);
6343 if (err)
6344 return err;
6345
6346 /* only one attribute may be given */
6347 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6348 if (attr[i]) {
6349 if (found)
6350 return -EINVAL;
6351 found = true;
6352 }
6353 }
6354
6355 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6356
6357 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6358 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6359
6360 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6361 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6362 bss_select->param.band_pref =
6363 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6364 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6365 return -EINVAL;
6366 }
6367
6368 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6369 struct nl80211_bss_select_rssi_adjust *adj_param;
6370
6371 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6372 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6373 bss_select->param.adjust.band = adj_param->band;
6374 bss_select->param.adjust.delta = adj_param->delta;
6375 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6376 return -EINVAL;
6377 }
6378
6379 /* user-space did not provide behaviour attribute */
6380 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6381 return -EINVAL;
6382
6383 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6384 return -EINVAL;
6385
6386 return 0;
6387}
6388
ad2b26ab
JB		 6389static int nl80211_parse_random_mac(struct nlattr **attrs,
6390 u8 *mac_addr, u8 *mac_addr_mask)
6391{
6392 int i;
6393
6394 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 6395 eth_zero_addr(mac_addr);
6396 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 6397 mac_addr[0] = 0x2;
6398 mac_addr_mask[0] = 0x3;
6399
6400 return 0;
6401 }
6402
6403 /* need both or none */
6404 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6405 return -EINVAL;
6406
6407 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6408 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6409
6410 /* don't allow or configure an mcast address */
6411 if (!is_multicast_ether_addr(mac_addr_mask) ||
6412 is_multicast_ether_addr(mac_addr))
6413 return -EINVAL;
6414
6415 /*
6416 * allow users to pass a MAC address that has bits set outside
6417 * of the mask, but don't bother drivers with having to deal
6418 * with such bits
6419 */
6420 for (i = 0; i < ETH_ALEN; i++)
6421 mac_addr[i] &= mac_addr_mask[i];
6422
6423 return 0;
6424}
6425
2a519311
JB		 6426static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6427{
4c476991 6428 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 6429 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 6430 struct cfg80211_scan_request *request;
2a519311
JB		 6431 struct nlattr *attr;
6432 struct wiphy *wiphy;
83f5e2cf 6433 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 6434 size_t ie_len;
2a519311 6435
f4a11bb0
JB		 6436 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6437 return -EINVAL;
6438
79c97e97 6439 wiphy = &rdev->wiphy;
2a519311 6440
cb3b7d87
AB		 6441 if (wdev->iftype == NL80211_IFTYPE_NAN)
6442 return -EOPNOTSUPP;
6443
4c476991
JB		 6444 if (!rdev->ops->scan)
6445 return -EOPNOTSUPP;
2a519311 6446
f9d15d16 6447 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 6448 err = -EBUSY;
6449 goto unlock;
6450 }
2a519311
JB		 6451
6452 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 6453 n_channels = validate_scan_freqs(
6454 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 6455 if (!n_channels) {
6456 err = -EINVAL;
6457 goto unlock;
6458 }
2a519311 6459 } else {
bdfbec2d 6460 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 6461 }
6462
6463 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6464 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6465 n_ssids++;
6466
f9f47529
JB		 6467 if (n_ssids > wiphy->max_scan_ssids) {
6468 err = -EINVAL;
6469 goto unlock;
6470 }
2a519311 6471
70692ad2
JM		 6472 if (info->attrs[NL80211_ATTR_IE])
6473 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6474 else
6475 ie_len = 0;
6476
f9f47529
JB		 6477 if (ie_len > wiphy->max_scan_ie_len) {
6478 err = -EINVAL;
6479 goto unlock;
6480 }
18a83659 6481
2a519311 6482 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 6483 + sizeof(*request->ssids) * n_ssids
6484 + sizeof(*request->channels) * n_channels
70692ad2 6485 + ie_len, GFP_KERNEL);
f9f47529
JB		 6486 if (!request) {
6487 err = -ENOMEM;
6488 goto unlock;
6489 }
2a519311 6490
2a519311 6491 if (n_ssids)
5ba63533 6492 request->ssids = (void *)&request->channels[n_channels];
2a519311 6493 request->n_ssids = n_ssids;
70692ad2 6494 if (ie_len) {
13874e4b 6495 if (n_ssids)
70692ad2
JM		 6496 request->ie = (void *)(request->ssids + n_ssids);
6497 else
6498 request->ie = (void *)(request->channels + n_channels);
6499 }
2a519311 6500
584991dc 6501 i = 0;
2a519311
JB		 6502 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6503 /* user specified, bail out if channel not found */
2a519311 6504 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6505 struct ieee80211_channel *chan;
6506
6507 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6508
6509 if (!chan) {
2a519311
JB		 6510 err = -EINVAL;
6511 goto out_free;
6512 }
584991dc
JB		 6513
6514 /* ignore disabled channels */
6515 if (chan->flags & IEEE80211_CHAN_DISABLED)
6516 continue;
6517
6518 request->channels[i] = chan;
2a519311
JB		 6519 i++;
6520 }
6521 } else {
57fbcce3 6522 enum nl80211_band band;
34850ab2 6523
2a519311 6524 /* all channels */
57fbcce3 6525 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2a519311 6526 int j;
7a087e74 6527
2a519311
JB		 6528 if (!wiphy->bands[band])
6529 continue;
6530 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6531 struct ieee80211_channel *chan;
6532
6533 chan = &wiphy->bands[band]->channels[j];
6534
6535 if (chan->flags & IEEE80211_CHAN_DISABLED)
6536 continue;
6537
6538 request->channels[i] = chan;
2a519311
JB		 6539 i++;
6540 }
6541 }
6542 }
6543
584991dc
JB		 6544 if (!i) {
6545 err = -EINVAL;
6546 goto out_free;
6547 }
6548
6549 request->n_channels = i;
6550
2a519311 6551 i = 0;
13874e4b 6552 if (n_ssids) {
2a519311 6553 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6554 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6555 err = -EINVAL;
6556 goto out_free;
6557 }
57a27e1d 6558 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6559 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6560 i++;
6561 }
6562 }
6563
70692ad2
JM		 6564 if (info->attrs[NL80211_ATTR_IE]) {
6565 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6566 memcpy((void *)request->ie,
6567 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6568 request->ie_len);
6569 }
6570
57fbcce3 6571 for (i = 0; i < NUM_NL80211_BANDS; i++)
a401d2bb
JB		 6572 if (wiphy->bands[i])
6573 request->rates[i] =
6574 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6575
6576 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6577 nla_for_each_nested(attr,
6578 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6579 tmp) {
57fbcce3 6580 enum nl80211_band band = nla_type(attr);
34850ab2 6581
57fbcce3 6582 if (band < 0 || band >= NUM_NL80211_BANDS) {
34850ab2
JB		 6583 err = -EINVAL;
6584 goto out_free;
6585 }
1b09cd82
FF		 6586
6587 if (!wiphy->bands[band])
6588 continue;
6589
34850ab2
JB		 6590 err = ieee80211_get_ratemask(wiphy->bands[band],
6591 nla_data(attr),
6592 nla_len(attr),
6593 &request->rates[band]);
6594 if (err)
6595 goto out_free;
6596 }
6597 }
6598
1d76250b
AS		 6599 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6600 if (!wiphy_ext_feature_isset(wiphy,
6601 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6602 err = -EOPNOTSUPP;
6603 goto out_free;
6604 }
6605
6606 request->duration =
6607 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6608 request->duration_mandatory =
6609 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6610 }
6611
46856bbf 6612 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 6613 request->flags = nla_get_u32(
6614 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6615 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6616 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6617 err = -EOPNOTSUPP;
6618 goto out_free;
6619 }
ad2b26ab
JB		 6620
6621 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6622 if (!(wiphy->features &
6623 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6624 err = -EOPNOTSUPP;
6625 goto out_free;
6626 }
6627
6628 if (wdev->current_bss) {
6629 err = -EOPNOTSUPP;
6630 goto out_free;
6631 }
6632
6633 err = nl80211_parse_random_mac(info->attrs,
6634 request->mac_addr,
6635 request->mac_addr_mask);
6636 if (err)
6637 goto out_free;
6638 }
46856bbf 6639 }
ed473771 6640
e9f935e3
RM		 6641 request->no_cck =
6642 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6643
818965d3
JM		 6644 if (info->attrs[NL80211_ATTR_MAC])
6645 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6646 ETH_ALEN);
6647 else
6648 eth_broadcast_addr(request->bssid);
6649
fd014284 6650 request->wdev = wdev;
79c97e97 6651 request->wiphy = &rdev->wiphy;
15d6030b 6652 request->scan_start = jiffies;
2a519311 6653
79c97e97 6654 rdev->scan_req = request;
e35e4d28 6655 err = rdev_scan(rdev, request);
2a519311 6656
463d0183 6657 if (!err) {
fd014284
JB		 6658 nl80211_send_scan_start(rdev, wdev);
6659 if (wdev->netdev)
6660 dev_hold(wdev->netdev);
4c476991 6661 } else {
2a519311 6662 out_free:
79c97e97 6663 rdev->scan_req = NULL;
2a519311
JB		 6664 kfree(request);
6665 }
3b85875a 6666
f9f47529 6667 unlock:
2a519311
JB		 6668 return err;
6669}
6670
91d3ab46
VK		 6671static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6672{
6673 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6674 struct wireless_dev *wdev = info->user_ptr[1];
6675
6676 if (!rdev->ops->abort_scan)
6677 return -EOPNOTSUPP;
6678
6679 if (rdev->scan_msg)
6680 return 0;
6681
6682 if (!rdev->scan_req)
6683 return -ENOENT;
6684
6685 rdev_abort_scan(rdev, wdev);
6686 return 0;
6687}
6688
3b06d277
AS		 6689static int
6690nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6691 struct cfg80211_sched_scan_request *request,
6692 struct nlattr **attrs)
6693{
6694 int tmp, err, i = 0;
6695 struct nlattr *attr;
6696
6697 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6698 u32 interval;
6699
6700 /*
6701 * If scan plans are not specified,
6702 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6703 * case one scan plan will be set with the specified scan
6704 * interval and infinite number of iterations.
6705 */
6706 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6707 return -EINVAL;
6708
6709 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6710 if (!interval)
6711 return -EINVAL;
6712
6713 request->scan_plans[0].interval =
6714 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6715 if (!request->scan_plans[0].interval)
6716 return -EINVAL;
6717
6718 if (request->scan_plans[0].interval >
6719 wiphy->max_sched_scan_plan_interval)
6720 request->scan_plans[0].interval =
6721 wiphy->max_sched_scan_plan_interval;
6722
6723 return 0;
6724 }
6725
6726 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6727 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6728
6729 if (WARN_ON(i >= n_plans))
6730 return -EINVAL;
6731
6732 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6733 nla_data(attr), nla_len(attr),
6734 nl80211_plan_policy);
6735 if (err)
6736 return err;
6737
6738 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6739 return -EINVAL;
6740
6741 request->scan_plans[i].interval =
6742 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6743 if (!request->scan_plans[i].interval ||
6744 request->scan_plans[i].interval >
6745 wiphy->max_sched_scan_plan_interval)
6746 return -EINVAL;
6747
6748 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6749 request->scan_plans[i].iterations =
6750 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6751 if (!request->scan_plans[i].iterations ||
6752 (request->scan_plans[i].iterations >
6753 wiphy->max_sched_scan_plan_iterations))
6754 return -EINVAL;
6755 } else if (i < n_plans - 1) {
6756 /*
6757 * All scan plans but the last one must specify
6758 * a finite number of iterations
6759 */
6760 return -EINVAL;
6761 }
6762
6763 i++;
6764 }
6765
6766 /*
6767 * The last scan plan must not specify the number of
6768 * iterations, it is supposed to run infinitely
6769 */
6770 if (request->scan_plans[n_plans - 1].iterations)
6771 return -EINVAL;
6772
6773 return 0;
6774}
6775
256da02d 6776static struct cfg80211_sched_scan_request *
ad2b26ab 6777nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 6778 struct nlattr **attrs)
807f8a8c
LC		 6779{
6780 struct cfg80211_sched_scan_request *request;
807f8a8c 6781 struct nlattr *attr;
3b06d277 6782 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
57fbcce3 6783 enum nl80211_band band;
807f8a8c 6784 size_t ie_len;
a1f1c21c 6785 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6786 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6787
256da02d
LC		 6788 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6789 return ERR_PTR(-EINVAL);
807f8a8c 6790
256da02d 6791 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6792 n_channels = validate_scan_freqs(
256da02d 6793 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6794 if (!n_channels)
256da02d 6795 return ERR_PTR(-EINVAL);
807f8a8c 6796 } else {
bdfbec2d 6797 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6798 }
6799
256da02d
LC		 6800 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6801 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6802 tmp)
6803 n_ssids++;
6804
93b6aa69 6805 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6806 return ERR_PTR(-EINVAL);
807f8a8c 6807
ea73cbce
JB		 6808 /*
6809 * First, count the number of 'real' matchsets. Due to an issue with
6810 * the old implementation, matchsets containing only the RSSI attribute
6811 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6812 * RSSI for all matchsets, rather than their own matchset for reporting
6813 * all APs with a strong RSSI. This is needed to be compatible with
6814 * older userspace that treated a matchset with only the RSSI as the
6815 * global RSSI for all other matchsets - if there are other matchsets.
6816 */
256da02d 6817 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6818 nla_for_each_nested(attr,
256da02d 6819 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6820 tmp) {
6821 struct nlattr *rssi;
6822
6823 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6824 nla_data(attr), nla_len(attr),
6825 nl80211_match_policy);
6826 if (err)
256da02d 6827 return ERR_PTR(err);
ea73cbce
JB		 6828 /* add other standalone attributes here */
6829 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6830 n_match_sets++;
6831 continue;
6832 }
6833 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6834 if (rssi)
6835 default_match_rssi = nla_get_s32(rssi);
6836 }
6837 }
6838
6839 /* However, if there's no other matchset, add the RSSI one */
6840 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6841 n_match_sets = 1;
a1f1c21c
LC		 6842
6843 if (n_match_sets > wiphy->max_match_sets)
256da02d 6844 return ERR_PTR(-EINVAL);
a1f1c21c 6845
256da02d
LC		 6846 if (attrs[NL80211_ATTR_IE])
6847 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6848 else
6849 ie_len = 0;
6850
5a865bad 6851 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6852 return ERR_PTR(-EINVAL);
c10841ca 6853
3b06d277
AS		 6854 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6855 /*
6856 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6857 * each scan plan already specifies its own interval
6858 */
6859 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6860 return ERR_PTR(-EINVAL);
6861
6862 nla_for_each_nested(attr,
6863 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6864 n_plans++;
6865 } else {
6866 /*
6867 * The scan interval attribute is kept for backward
6868 * compatibility. If no scan plans are specified and sched scan
6869 * interval is specified, one scan plan will be set with this
6870 * scan interval and infinite number of iterations.
6871 */
6872 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6873 return ERR_PTR(-EINVAL);
6874
6875 n_plans = 1;
6876 }
6877
6878 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6879 return ERR_PTR(-EINVAL);
6880
807f8a8c 6881 request = kzalloc(sizeof(*request)
a2cd43c5 6882 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6883 + sizeof(*request->match_sets) * n_match_sets
3b06d277 6884 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 6885 + sizeof(*request->channels) * n_channels
807f8a8c 6886 + ie_len, GFP_KERNEL);
256da02d
LC		 6887 if (!request)
6888 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6889
6890 if (n_ssids)
6891 request->ssids = (void *)&request->channels[n_channels];
6892 request->n_ssids = n_ssids;
6893 if (ie_len) {
13874e4b 6894 if (n_ssids)
807f8a8c
LC		 6895 request->ie = (void *)(request->ssids + n_ssids);
6896 else
6897 request->ie = (void *)(request->channels + n_channels);
6898 }
6899
a1f1c21c
LC		 6900 if (n_match_sets) {
6901 if (request->ie)
6902 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6903 else if (n_ssids)
a1f1c21c
LC		 6904 request->match_sets =
6905 (void *)(request->ssids + n_ssids);
6906 else
6907 request->match_sets =
6908 (void *)(request->channels + n_channels);
6909 }
6910 request->n_match_sets = n_match_sets;
6911
3b06d277
AS		 6912 if (n_match_sets)
6913 request->scan_plans = (void *)(request->match_sets +
6914 n_match_sets);
6915 else if (request->ie)
6916 request->scan_plans = (void *)(request->ie + ie_len);
6917 else if (n_ssids)
6918 request->scan_plans = (void *)(request->ssids + n_ssids);
6919 else
6920 request->scan_plans = (void *)(request->channels + n_channels);
6921
6922 request->n_scan_plans = n_plans;
6923
807f8a8c 6924 i = 0;
256da02d 6925 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6926 /* user specified, bail out if channel not found */
6927 nla_for_each_nested(attr,
256da02d 6928 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6929 tmp) {
6930 struct ieee80211_channel *chan;
6931
6932 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6933
6934 if (!chan) {
6935 err = -EINVAL;
6936 goto out_free;
6937 }
6938
6939 /* ignore disabled channels */
6940 if (chan->flags & IEEE80211_CHAN_DISABLED)
6941 continue;
6942
6943 request->channels[i] = chan;
6944 i++;
6945 }
6946 } else {
6947 /* all channels */
57fbcce3 6948 for (band = 0; band < NUM_NL80211_BANDS; band++) {
807f8a8c 6949 int j;
7a087e74 6950
807f8a8c
LC		 6951 if (!wiphy->bands[band])
6952 continue;
6953 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6954 struct ieee80211_channel *chan;
6955
6956 chan = &wiphy->bands[band]->channels[j];
6957
6958 if (chan->flags & IEEE80211_CHAN_DISABLED)
6959 continue;
6960
6961 request->channels[i] = chan;
6962 i++;
6963 }
6964 }
6965 }
6966
6967 if (!i) {
6968 err = -EINVAL;
6969 goto out_free;
6970 }
6971
6972 request->n_channels = i;
6973
6974 i = 0;
13874e4b 6975 if (n_ssids) {
256da02d 6976 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6977 tmp) {
57a27e1d 6978 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6979 err = -EINVAL;
6980 goto out_free;
6981 }
57a27e1d 6982 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6983 memcpy(request->ssids[i].ssid, nla_data(attr),
6984 nla_len(attr));
807f8a8c
LC		 6985 i++;
6986 }
6987 }
6988
a1f1c21c 6989 i = 0;
256da02d 6990 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6991 nla_for_each_nested(attr,
256da02d 6992 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6993 tmp) {
88e920b4 6994 struct nlattr *ssid, *rssi;
a1f1c21c 6995
ae811e21
JB		 6996 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6997 nla_data(attr), nla_len(attr),
6998 nl80211_match_policy);
6999 if (err)
7000 goto out_free;
4a4ab0d7 7001 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 7002 if (ssid) {
ea73cbce
JB		 7003 if (WARN_ON(i >= n_match_sets)) {
7004 /* this indicates a programming error,
7005 * the loop above should have verified
7006 * things properly
7007 */
7008 err = -EINVAL;
7009 goto out_free;
7010 }
7011
a1f1c21c
LC		 7012 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
7013 err = -EINVAL;
7014 goto out_free;
7015 }
7016 memcpy(request->match_sets[i].ssid.ssid,
7017 nla_data(ssid), nla_len(ssid));
7018 request->match_sets[i].ssid.ssid_len =
7019 nla_len(ssid);
56ab364f 7020 /* special attribute - old implementation w/a */
ea73cbce
JB		 7021 request->match_sets[i].rssi_thold =
7022 default_match_rssi;
7023 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7024 if (rssi)
7025 request->match_sets[i].rssi_thold =
7026 nla_get_s32(rssi);
a1f1c21c
LC		 7027 }
7028 i++;
7029 }
ea73cbce
JB		 7030
7031 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 7032 if (i == 0 && n_match_sets)
ea73cbce
JB		 7033 request->match_sets[0].rssi_thold = default_match_rssi;
7034
7035 request->min_rssi_thold = INT_MAX;
7036 for (i = 0; i < n_match_sets; i++)
7037 request->min_rssi_thold =
7038 min(request->match_sets[i].rssi_thold,
7039 request->min_rssi_thold);
7040 } else {
7041 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 7042 }
7043
9900e484
JB		 7044 if (ie_len) {
7045 request->ie_len = ie_len;
807f8a8c 7046 memcpy((void *)request->ie,
256da02d 7047 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 7048 request->ie_len);
7049 }
7050
256da02d 7051 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 7052 request->flags = nla_get_u32(
256da02d 7053 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 7054 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
7055 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 7056 err = -EOPNOTSUPP;
7057 goto out_free;
7058 }
ad2b26ab
JB		 7059
7060 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
7061 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
7062
7063 if (!wdev) /* must be net-detect */
7064 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
7065
7066 if (!(wiphy->features & flg)) {
7067 err = -EOPNOTSUPP;
7068 goto out_free;
7069 }
7070
7071 if (wdev && wdev->current_bss) {
7072 err = -EOPNOTSUPP;
7073 goto out_free;
7074 }
7075
7076 err = nl80211_parse_random_mac(attrs, request->mac_addr,
7077 request->mac_addr_mask);
7078 if (err)
7079 goto out_free;
7080 }
46856bbf 7081 }
ed473771 7082
9c748934
LC		 7083 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
7084 request->delay =
7085 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
7086
3b06d277
AS		 7087 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
7088 if (err)
7089 goto out_free;
7090
15d6030b 7091 request->scan_start = jiffies;
807f8a8c 7092
256da02d 7093 return request;
807f8a8c
LC		 7094
7095out_free:
7096 kfree(request);
256da02d
LC		 7097 return ERR_PTR(err);
7098}
7099
7100static int nl80211_start_sched_scan(struct sk_buff *skb,
7101 struct genl_info *info)
7102{
7103 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7104 struct net_device *dev = info->user_ptr[1];
ad2b26ab 7105 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 7106 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 7107 int err;
7108
7109 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
7110 !rdev->ops->sched_scan_start)
7111 return -EOPNOTSUPP;
7112
7113 if (rdev->sched_scan_req)
7114 return -EINPROGRESS;
7115
31a60ed1
JR		 7116 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
7117 info->attrs);
7118
7119 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 7120 if (err)
7121 goto out_err;
7122
31a60ed1 7123 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 7124 if (err)
7125 goto out_free;
7126
31a60ed1
JR		 7127 sched_scan_req->dev = dev;
7128 sched_scan_req->wiphy = &rdev->wiphy;
7129
93a1e86c
JR		 7130 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
7131 sched_scan_req->owner_nlportid = info->snd_portid;
7132
31a60ed1 7133 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 7134
7135 nl80211_send_sched_scan(rdev, dev,
7136 NL80211_CMD_START_SCHED_SCAN);
7137 return 0;
7138
7139out_free:
31a60ed1 7140 kfree(sched_scan_req);
256da02d 7141out_err:
807f8a8c
LC		 7142 return err;
7143}
7144
7145static int nl80211_stop_sched_scan(struct sk_buff *skb,
7146 struct genl_info *info)
7147{
7148 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7149
7150 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
7151 !rdev->ops->sched_scan_stop)
7152 return -EOPNOTSUPP;
7153
5fe231e8 7154 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 7155}
7156
04f39047
SW		 7157static int nl80211_start_radar_detection(struct sk_buff *skb,
7158 struct genl_info *info)
7159{
7160 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7161 struct net_device *dev = info->user_ptr[1];
7162 struct wireless_dev *wdev = dev->ieee80211_ptr;
7163 struct cfg80211_chan_def chandef;
55f7435c 7164 enum nl80211_dfs_regions dfs_region;
31559f35 7165 unsigned int cac_time_ms;
04f39047
SW		 7166 int err;
7167
55f7435c
LR		 7168 dfs_region = reg_get_dfs_region(wdev->wiphy);
7169 if (dfs_region == NL80211_DFS_UNSET)
7170 return -EINVAL;
7171
04f39047
SW		 7172 err = nl80211_parse_chandef(rdev, info, &chandef);
7173 if (err)
7174 return err;
7175
ff311bc1
SW		 7176 if (netif_carrier_ok(dev))
7177 return -EBUSY;
7178
04f39047
SW		 7179 if (wdev->cac_started)
7180 return -EBUSY;
7181
2beb6dab 7182 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 7183 wdev->iftype);
04f39047
SW		 7184 if (err < 0)
7185 return err;
7186
7187 if (err == 0)
7188 return -EINVAL;
7189
fe7c3a1f 7190 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 7191 return -EINVAL;
7192
7193 if (!rdev->ops->start_radar_detection)
7194 return -EOPNOTSUPP;
7195
31559f35
JD		 7196 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
7197 if (WARN_ON(!cac_time_ms))
7198 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
7199
a1056b1b 7200 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 7201 if (!err) {
9e0e2961 7202 wdev->chandef = chandef;
04f39047
SW		 7203 wdev->cac_started = true;
7204 wdev->cac_start_time = jiffies;
31559f35 7205 wdev->cac_time_ms = cac_time_ms;
04f39047 7206 }
04f39047
SW		 7207 return err;
7208}
7209
16ef1fe2
SW		 7210static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
7211{
7212 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7213 struct net_device *dev = info->user_ptr[1];
7214 struct wireless_dev *wdev = dev->ieee80211_ptr;
7215 struct cfg80211_csa_settings params;
7216 /* csa_attrs is defined static to avoid waste of stack size - this
7217 * function is called under RTNL lock, so this should not be a problem.
7218 */
7219 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 7220 int err;
ee4bc9e7 7221 bool need_new_beacon = false;
9a774c78 7222 int len, i;
252e07ca 7223 u32 cs_count;
16ef1fe2
SW		 7224
7225 if (!rdev->ops->channel_switch ||
7226 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
7227 return -EOPNOTSUPP;
7228
ee4bc9e7
SW		 7229 switch (dev->ieee80211_ptr->iftype) {
7230 case NL80211_IFTYPE_AP:
7231 case NL80211_IFTYPE_P2P_GO:
7232 need_new_beacon = true;
7233
7234 /* useless if AP is not running */
7235 if (!wdev->beacon_interval)
1ff79dfa 7236 return -ENOTCONN;
ee4bc9e7
SW		 7237 break;
7238 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 7239 if (!wdev->ssid_len)
7240 return -ENOTCONN;
7241 break;
c6da674a 7242 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 7243 if (!wdev->mesh_id_len)
7244 return -ENOTCONN;
ee4bc9e7
SW		 7245 break;
7246 default:
16ef1fe2 7247 return -EOPNOTSUPP;
ee4bc9e7 7248 }
16ef1fe2
SW		 7249
7250 memset(&params, 0, sizeof(params));
7251
7252 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7253 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
7254 return -EINVAL;
7255
7256 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 7257 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 7258 return -EINVAL;
7259
252e07ca
LC		 7260 /* Even though the attribute is u32, the specification says
7261 * u8, so let's make sure we don't overflow.
7262 */
7263 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
7264 if (cs_count > 255)
7265 return -EINVAL;
7266
7267 params.count = cs_count;
16ef1fe2 7268
ee4bc9e7
SW		 7269 if (!need_new_beacon)
7270 goto skip_beacons;
7271
16ef1fe2
SW		 7272 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
7273 if (err)
7274 return err;
7275
7276 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
7277 info->attrs[NL80211_ATTR_CSA_IES],
7278 nl80211_policy);
7279 if (err)
7280 return err;
7281
7282 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
7283 if (err)
7284 return err;
7285
7286 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
7287 return -EINVAL;
7288
9a774c78
AO		 7289 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7290 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7291 return -EINVAL;
7292
9a774c78
AO		 7293 params.n_counter_offsets_beacon = len / sizeof(u16);
7294 if (rdev->wiphy.max_num_csa_counters &&
7295 (params.n_counter_offsets_beacon >
7296 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 7297 return -EINVAL;
7298
9a774c78
AO		 7299 params.counter_offsets_beacon =
7300 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7301
7302 /* sanity checks - counters should fit and be the same */
7303 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7304 u16 offset = params.counter_offsets_beacon[i];
7305
7306 if (offset >= params.beacon_csa.tail_len)
7307 return -EINVAL;
7308
7309 if (params.beacon_csa.tail[offset] != params.count)
7310 return -EINVAL;
7311 }
7312
16ef1fe2 7313 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 7314 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7315 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7316 return -EINVAL;
7317
9a774c78
AO		 7318 params.n_counter_offsets_presp = len / sizeof(u16);
7319 if (rdev->wiphy.max_num_csa_counters &&
7320 (params.n_counter_offsets_beacon >
7321 rdev->wiphy.max_num_csa_counters))
16ef1fe2 7322 return -EINVAL;
9a774c78
AO		 7323
7324 params.counter_offsets_presp =
7325 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7326
7327 /* sanity checks - counters should fit and be the same */
7328 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7329 u16 offset = params.counter_offsets_presp[i];
7330
7331 if (offset >= params.beacon_csa.probe_resp_len)
7332 return -EINVAL;
7333
7334 if (params.beacon_csa.probe_resp[offset] !=
7335 params.count)
7336 return -EINVAL;
7337 }
16ef1fe2
SW		 7338 }
7339
ee4bc9e7 7340skip_beacons:
16ef1fe2
SW		 7341 err = nl80211_parse_chandef(rdev, info, &params.chandef);
7342 if (err)
7343 return err;
7344
923b352f
AN		 7345 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
7346 wdev->iftype))
16ef1fe2
SW		 7347 return -EINVAL;
7348
2beb6dab
LC		 7349 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7350 &params.chandef,
7351 wdev->iftype);
7352 if (err < 0)
7353 return err;
7354
dcc6c2f5 7355 if (err > 0)
2beb6dab 7356 params.radar_required = true;
16ef1fe2 7357
16ef1fe2
SW		 7358 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7359 params.block_tx = true;
7360
c56589ed
SW		 7361 wdev_lock(wdev);
7362 err = rdev_channel_switch(rdev, dev, &params);
7363 wdev_unlock(wdev);
7364
7365 return err;
16ef1fe2
SW		 7366}
7367
9720bb3a
JB		 7368static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7369 u32 seq, int flags,
2a519311 7370 struct cfg80211_registered_device *rdev,
48ab905d
JB		 7371 struct wireless_dev *wdev,
7372 struct cfg80211_internal_bss *intbss)
2a519311 7373{
48ab905d 7374 struct cfg80211_bss *res = &intbss->pub;
9caf0364 7375 const struct cfg80211_bss_ies *ies;
2a519311
JB		 7376 void *hdr;
7377 struct nlattr *bss;
48ab905d
JB		 7378
7379 ASSERT_WDEV_LOCK(wdev);
2a519311 7380
15e47304 7381 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 7382 NL80211_CMD_NEW_SCAN_RESULTS);
7383 if (!hdr)
7384 return -1;
7385
9720bb3a
JB		 7386 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7387
97990a06
JB		 7388 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7389 goto nla_put_failure;
7390 if (wdev->netdev &&
9360ffd1
DM		 7391 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7392 goto nla_put_failure;
2dad624e
ND		 7393 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7394 NL80211_ATTR_PAD))
97990a06 7395 goto nla_put_failure;
2a519311
JB		 7396
7397 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7398 if (!bss)
7399 goto nla_put_failure;
9360ffd1 7400 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 7401 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 7402 goto nla_put_failure;
9caf0364
JB		 7403
7404 rcu_read_lock();
0e227084
JB		 7405 /* indicate whether we have probe response data or not */
7406 if (rcu_access_pointer(res->proberesp_ies) &&
7407 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7408 goto fail_unlock_rcu;
7409
7410 /* this pointer prefers to be pointed to probe response data
7411 * but is always valid
7412 */
9caf0364 7413 ies = rcu_dereference(res->ies);
8cef2c9d 7414 if (ies) {
2dad624e
ND		 7415 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7416 NL80211_BSS_PAD))
8cef2c9d 7417 goto fail_unlock_rcu;
8cef2c9d
JB		 7418 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7419 ies->len, ies->data))
7420 goto fail_unlock_rcu;
9caf0364 7421 }
0e227084
JB		 7422
7423 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 7424 ies = rcu_dereference(res->beacon_ies);
0e227084 7425 if (ies && ies->from_beacon) {
2dad624e
ND		 7426 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7427 NL80211_BSS_PAD))
8cef2c9d
JB		 7428 goto fail_unlock_rcu;
7429 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7430 ies->len, ies->data))
7431 goto fail_unlock_rcu;
9caf0364
JB		 7432 }
7433 rcu_read_unlock();
7434
9360ffd1
DM		 7435 if (res->beacon_interval &&
7436 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7437 goto nla_put_failure;
7438 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7439 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 7440 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 7441 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7442 jiffies_to_msecs(jiffies - intbss->ts)))
7443 goto nla_put_failure;
2a519311 7444
1d76250b
AS		 7445 if (intbss->parent_tsf &&
7446 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7447 intbss->parent_tsf, NL80211_BSS_PAD) ||
7448 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7449 intbss->parent_bssid)))
7450 goto nla_put_failure;
7451
6e19bc4b 7452 if (intbss->ts_boottime &&
2dad624e
ND		 7453 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7454 intbss->ts_boottime, NL80211_BSS_PAD))
6e19bc4b
DS		 7455 goto nla_put_failure;
7456
77965c97 7457 switch (rdev->wiphy.signal_type) {
2a519311 7458 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 7459 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7460 goto nla_put_failure;
2a519311
JB		 7461 break;
7462 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 7463 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7464 goto nla_put_failure;
2a519311
JB		 7465 break;
7466 default:
7467 break;
7468 }
7469
48ab905d 7470 switch (wdev->iftype) {
074ac8df 7471 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 7472 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 7473 if (intbss == wdev->current_bss &&
7474 nla_put_u32(msg, NL80211_BSS_STATUS,
7475 NL80211_BSS_STATUS_ASSOCIATED))
7476 goto nla_put_failure;
48ab905d
JB		 7477 break;
7478 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 7479 if (intbss == wdev->current_bss &&
7480 nla_put_u32(msg, NL80211_BSS_STATUS,
7481 NL80211_BSS_STATUS_IBSS_JOINED))
7482 goto nla_put_failure;
48ab905d
JB		 7483 break;
7484 default:
7485 break;
7486 }
7487
2a519311
JB		 7488 nla_nest_end(msg, bss);
7489
053c095a
JB		 7490 genlmsg_end(msg, hdr);
7491 return 0;
2a519311 7492
8cef2c9d
JB		 7493 fail_unlock_rcu:
7494 rcu_read_unlock();
2a519311
JB		 7495 nla_put_failure:
7496 genlmsg_cancel(msg, hdr);
7497 return -EMSGSIZE;
7498}
7499
97990a06 7500static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 7501{
48ab905d 7502 struct cfg80211_registered_device *rdev;
2a519311 7503 struct cfg80211_internal_bss *scan;
48ab905d 7504 struct wireless_dev *wdev;
97990a06 7505 int start = cb->args[2], idx = 0;
2a519311
JB		 7506 int err;
7507
97990a06 7508 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7509 if (err)
7510 return err;
2a519311 7511
48ab905d
JB		 7512 wdev_lock(wdev);
7513 spin_lock_bh(&rdev->bss_lock);
7514 cfg80211_bss_expire(rdev);
7515
9720bb3a
JB		 7516 cb->seq = rdev->bss_generation;
7517
48ab905d 7518 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 7519 if (++idx <= start)
7520 continue;
9720bb3a 7521 if (nl80211_send_bss(skb, cb,
2a519311 7522 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 7523 rdev, wdev, scan) < 0) {
2a519311 7524 idx--;
67748893 7525 break;
2a519311
JB		 7526 }
7527 }
7528
48ab905d
JB		 7529 spin_unlock_bh(&rdev->bss_lock);
7530 wdev_unlock(wdev);
2a519311 7531
97990a06
JB		 7532 cb->args[2] = idx;
7533 nl80211_finish_wdev_dump(rdev);
2a519311 7534
67748893 7535 return skb->len;
2a519311
JB		 7536}
7537
15e47304 7538static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7539 int flags, struct net_device *dev,
7540 bool allow_radio_stats,
7541 struct survey_info *survey)
61fa713c
HS		 7542{
7543 void *hdr;
7544 struct nlattr *infoattr;
7545
11f78ac3
JB		 7546 /* skip radio stats if userspace didn't request them */
7547 if (!survey->channel && !allow_radio_stats)
7548 return 0;
7549
15e47304 7550 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7551 NL80211_CMD_NEW_SURVEY_RESULTS);
7552 if (!hdr)
7553 return -ENOMEM;
7554
9360ffd1
DM		 7555 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7556 goto nla_put_failure;
61fa713c
HS		 7557
7558 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7559 if (!infoattr)
7560 goto nla_put_failure;
7561
11f78ac3
JB		 7562 if (survey->channel &&
7563 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7564 survey->channel->center_freq))
7565 goto nla_put_failure;
7566
7567 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7568 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7569 goto nla_put_failure;
7570 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7571 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7572 goto nla_put_failure;
4ed20beb 7573 if ((survey->filled & SURVEY_INFO_TIME) &&
2dad624e
ND		 7574 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7575 survey->time, NL80211_SURVEY_INFO_PAD))
9360ffd1 7576 goto nla_put_failure;
4ed20beb 7577 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
2dad624e
ND		 7578 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7579 survey->time_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7580 goto nla_put_failure;
4ed20beb 7581 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
2dad624e
ND		 7582 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7583 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7584 goto nla_put_failure;
4ed20beb 7585 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
2dad624e
ND		 7586 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7587 survey->time_rx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7588 goto nla_put_failure;
4ed20beb 7589 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
2dad624e
ND		 7590 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7591 survey->time_tx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7592 goto nla_put_failure;
052536ab 7593 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
2dad624e
ND		 7594 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7595 survey->time_scan, NL80211_SURVEY_INFO_PAD))
052536ab 7596 goto nla_put_failure;
61fa713c
HS		 7597
7598 nla_nest_end(msg, infoattr);
7599
053c095a
JB		 7600 genlmsg_end(msg, hdr);
7601 return 0;
61fa713c
HS		 7602
7603 nla_put_failure:
7604 genlmsg_cancel(msg, hdr);
7605 return -EMSGSIZE;
7606}
7607
11f78ac3 7608static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 7609{
7610 struct survey_info survey;
1b8ec87a 7611 struct cfg80211_registered_device *rdev;
97990a06
JB		 7612 struct wireless_dev *wdev;
7613 int survey_idx = cb->args[2];
61fa713c 7614 int res;
11f78ac3 7615 bool radio_stats;
61fa713c 7616
1b8ec87a 7617 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7618 if (res)
7619 return res;
61fa713c 7620
11f78ac3
JB		 7621 /* prepare_wdev_dump parsed the attributes */
7622 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
7623
97990a06
JB		 7624 if (!wdev->netdev) {
7625 res = -EINVAL;
7626 goto out_err;
7627 }
7628
1b8ec87a 7629 if (!rdev->ops->dump_survey) {
61fa713c
HS		 7630 res = -EOPNOTSUPP;
7631 goto out_err;
7632 }
7633
7634 while (1) {
1b8ec87a 7635 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 7636 if (res == -ENOENT)
7637 break;
7638 if (res)
7639 goto out_err;
7640
11f78ac3
JB		 7641 /* don't send disabled channels, but do send non-channel data */
7642 if (survey.channel &&
7643 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 7644 survey_idx++;
7645 continue;
7646 }
7647
61fa713c 7648 if (nl80211_send_survey(skb,
15e47304 7649 NETLINK_CB(cb->skb).portid,
61fa713c 7650 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 7651 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 7652 goto out;
7653 survey_idx++;
7654 }
7655
7656 out:
97990a06 7657 cb->args[2] = survey_idx;
61fa713c
HS		 7658 res = skb->len;
7659 out_err:
1b8ec87a 7660 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 7661 return res;
7662}
7663
b23aa676
SO		 7664static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7665{
7666 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7667 NL80211_WPA_VERSION_2));
7668}
7669
636a5d36
JM		 7670static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7671{
4c476991
JB		 7672 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7673 struct net_device *dev = info->user_ptr[1];
19957bb3 7674 struct ieee80211_channel *chan;
e39e5b5e
JM		 7675 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7676 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 7677 enum nl80211_auth_type auth_type;
fffd0934 7678 struct key_parse key;
d5cdfacb 7679 bool local_state_change;
636a5d36 7680
f4a11bb0
JB		 7681 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7682 return -EINVAL;
7683
7684 if (!info->attrs[NL80211_ATTR_MAC])
7685 return -EINVAL;
7686
1778092e
JM		 7687 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7688 return -EINVAL;
7689
19957bb3
JB		 7690 if (!info->attrs[NL80211_ATTR_SSID])
7691 return -EINVAL;
7692
7693 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7694 return -EINVAL;
7695
fffd0934
JB		 7696 err = nl80211_parse_key(info, &key);
7697 if (err)
7698 return err;
7699
7700 if (key.idx >= 0) {
e31b8213
JB		 7701 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7702 return -EINVAL;
fffd0934
JB		 7703 if (!key.p.key || !key.p.key_len)
7704 return -EINVAL;
7705 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7706 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7707 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7708 key.p.key_len != WLAN_KEY_LEN_WEP104))
7709 return -EINVAL;
b6b5555b 7710 if (key.idx > 3)
fffd0934
JB		 7711 return -EINVAL;
7712 } else {
7713 key.p.key_len = 0;
7714 key.p.key = NULL;
7715 }
7716
afea0b7a
JB		 7717 if (key.idx >= 0) {
7718 int i;
7719 bool ok = false;
7a087e74 7720
afea0b7a
JB		 7721 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7722 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7723 ok = true;
7724 break;
7725 }
7726 }
4c476991
JB		 7727 if (!ok)
7728 return -EINVAL;
afea0b7a
JB		 7729 }
7730
4c476991
JB		 7731 if (!rdev->ops->auth)
7732 return -EOPNOTSUPP;
636a5d36 7733
074ac8df 7734 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7735 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7736 return -EOPNOTSUPP;
eec60b03 7737
19957bb3 7738 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7739 chan = nl80211_get_valid_chan(&rdev->wiphy,
7740 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7741 if (!chan)
4c476991 7742 return -EINVAL;
636a5d36 7743
19957bb3
JB		 7744 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7745 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7746
7747 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7748 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7749 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7750 }
7751
19957bb3 7752 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7753 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7754 return -EINVAL;
636a5d36 7755
e39e5b5e
JM		 7756 if (auth_type == NL80211_AUTHTYPE_SAE &&
7757 !info->attrs[NL80211_ATTR_SAE_DATA])
7758 return -EINVAL;
7759
7760 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7761 if (auth_type != NL80211_AUTHTYPE_SAE)
7762 return -EINVAL;
7763 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7764 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7765 /* need to include at least Auth Transaction and Status Code */
7766 if (sae_data_len < 4)
7767 return -EINVAL;
7768 }
7769
d5cdfacb
JM		 7770 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7771
95de817b
JB		 7772 /*
7773 * Since we no longer track auth state, ignore
7774 * requests to only change local state.
7775 */
7776 if (local_state_change)
7777 return 0;
7778
91bf9b26
JB		 7779 wdev_lock(dev->ieee80211_ptr);
7780 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7781 ssid, ssid_len, ie, ie_len,
7782 key.p.key, key.p.key_len, key.idx,
7783 sae_data, sae_data_len);
7784 wdev_unlock(dev->ieee80211_ptr);
7785 return err;
636a5d36
JM		 7786}
7787
c0692b8f
JB		 7788static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7789 struct genl_info *info,
3dc27d25
JB		 7790 struct cfg80211_crypto_settings *settings,
7791 int cipher_limit)
b23aa676 7792{
c0b2bbd8
JB		 7793 memset(settings, 0, sizeof(*settings));
7794
b23aa676
SO		 7795 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7796
c0692b8f
JB		 7797 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7798 u16 proto;
7a087e74 7799
c0692b8f
JB		 7800 proto = nla_get_u16(
7801 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7802 settings->control_port_ethertype = cpu_to_be16(proto);
7803 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7804 proto != ETH_P_PAE)
7805 return -EINVAL;
7806 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7807 settings->control_port_no_encrypt = true;
7808 } else
7809 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7810
b23aa676
SO		 7811 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7812 void *data;
7813 int len, i;
7814
7815 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7816 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7817 settings->n_ciphers_pairwise = len / sizeof(u32);
7818
7819 if (len % sizeof(u32))
7820 return -EINVAL;
7821
3dc27d25 7822 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 7823 return -EINVAL;
7824
7825 memcpy(settings->ciphers_pairwise, data, len);
7826
7827 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 7828 if (!cfg80211_supported_cipher_suite(
7829 &rdev->wiphy,
b23aa676
SO		 7830 settings->ciphers_pairwise[i]))
7831 return -EINVAL;
7832 }
7833
7834 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7835 settings->cipher_group =
7836 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 7837 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7838 settings->cipher_group))
b23aa676
SO		 7839 return -EINVAL;
7840 }
7841
7842 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7843 settings->wpa_versions =
7844 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7845 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7846 return -EINVAL;
7847 }
7848
7849 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7850 void *data;
6d30240e 7851 int len;
b23aa676
SO		 7852
7853 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7854 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7855 settings->n_akm_suites = len / sizeof(u32);
7856
7857 if (len % sizeof(u32))
7858 return -EINVAL;
7859
1b9ca027
JM		 7860 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7861 return -EINVAL;
7862
b23aa676 7863 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 7864 }
7865
7866 return 0;
7867}
7868
636a5d36
JM		 7869static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7870{
4c476991
JB		 7871 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7872 struct net_device *dev = info->user_ptr[1];
f444de05 7873 struct ieee80211_channel *chan;
f62fab73
JB		 7874 struct cfg80211_assoc_request req = {};
7875 const u8 *bssid, *ssid;
7876 int err, ssid_len = 0;
636a5d36 7877
f4a11bb0
JB		 7878 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7879 return -EINVAL;
7880
7881 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7882 !info->attrs[NL80211_ATTR_SSID] ||
7883 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7884 return -EINVAL;
7885
4c476991
JB		 7886 if (!rdev->ops->assoc)
7887 return -EOPNOTSUPP;
636a5d36 7888
074ac8df 7889 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7890 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7891 return -EOPNOTSUPP;
eec60b03 7892
19957bb3 7893 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7894
664834de
JM		 7895 chan = nl80211_get_valid_chan(&rdev->wiphy,
7896 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7897 if (!chan)
4c476991 7898 return -EINVAL;
636a5d36 7899
19957bb3
JB		 7900 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7901 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7902
7903 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7904 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7905 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7906 }
7907
dc6382ce 7908 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7909 enum nl80211_mfp mfp =
dc6382ce 7910 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7911 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7912 req.use_mfp = true;
4c476991
JB		 7913 else if (mfp != NL80211_MFP_NO)
7914 return -EINVAL;
dc6382ce
JM		 7915 }
7916
3e5d7649 7917 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7918 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7919
7e7c8926 7920 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7921 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7922
7923 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7924 memcpy(&req.ht_capa_mask,
7925 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7926 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7927
7928 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7929 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7930 return -EINVAL;
f62fab73
JB		 7931 memcpy(&req.ht_capa,
7932 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7933 sizeof(req.ht_capa));
7e7c8926
BG		 7934 }
7935
ee2aca34 7936 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7937 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7938
7939 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7940 memcpy(&req.vht_capa_mask,
7941 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7942 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7943
7944 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7945 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7946 return -EINVAL;
f62fab73
JB		 7947 memcpy(&req.vht_capa,
7948 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7949 sizeof(req.vht_capa));
ee2aca34
JB		 7950 }
7951
bab5ab7d 7952 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 7953 if (!((rdev->wiphy.features &
7954 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
7955 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
7956 !wiphy_ext_feature_isset(&rdev->wiphy,
7957 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 7958 return -EINVAL;
7959 req.flags |= ASSOC_REQ_USE_RRM;
7960 }
7961
f62fab73 7962 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7963 if (!err) {
7964 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7965 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7966 ssid, ssid_len, &req);
91bf9b26
JB		 7967 wdev_unlock(dev->ieee80211_ptr);
7968 }
636a5d36 7969
636a5d36
JM		 7970 return err;
7971}
7972
7973static int nl80211_deauthenticate(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 const u8 *ie = NULL, *bssid;
91bf9b26 7978 int ie_len = 0, err;
19957bb3 7979 u16 reason_code;
d5cdfacb 7980 bool local_state_change;
636a5d36 7981
f4a11bb0
JB		 7982 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7983 return -EINVAL;
7984
7985 if (!info->attrs[NL80211_ATTR_MAC])
7986 return -EINVAL;
7987
7988 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7989 return -EINVAL;
7990
4c476991
JB		 7991 if (!rdev->ops->deauth)
7992 return -EOPNOTSUPP;
636a5d36 7993
074ac8df 7994 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7995 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7996 return -EOPNOTSUPP;
eec60b03 7997
19957bb3 7998 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7999
19957bb3
JB		 8000 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8001 if (reason_code == 0) {
f4a11bb0 8002 /* Reason Code 0 is reserved */
4c476991 8003 return -EINVAL;
255e737e 8004 }
636a5d36
JM		 8005
8006 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8007 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8008 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8009 }
8010
d5cdfacb
JM		 8011 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8012
91bf9b26
JB		 8013 wdev_lock(dev->ieee80211_ptr);
8014 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
8015 local_state_change);
8016 wdev_unlock(dev->ieee80211_ptr);
8017 return err;
636a5d36
JM		 8018}
8019
8020static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
8021{
4c476991
JB		 8022 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8023 struct net_device *dev = info->user_ptr[1];
19957bb3 8024 const u8 *ie = NULL, *bssid;
91bf9b26 8025 int ie_len = 0, err;
19957bb3 8026 u16 reason_code;
d5cdfacb 8027 bool local_state_change;
636a5d36 8028
f4a11bb0
JB		 8029 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8030 return -EINVAL;
8031
8032 if (!info->attrs[NL80211_ATTR_MAC])
8033 return -EINVAL;
8034
8035 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8036 return -EINVAL;
8037
4c476991
JB		 8038 if (!rdev->ops->disassoc)
8039 return -EOPNOTSUPP;
636a5d36 8040
074ac8df 8041 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8042 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8043 return -EOPNOTSUPP;
eec60b03 8044
19957bb3 8045 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8046
19957bb3
JB		 8047 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8048 if (reason_code == 0) {
f4a11bb0 8049 /* Reason Code 0 is reserved */
4c476991 8050 return -EINVAL;
255e737e 8051 }
636a5d36
JM		 8052
8053 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8054 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8055 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8056 }
8057
d5cdfacb
JM		 8058 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8059
91bf9b26
JB		 8060 wdev_lock(dev->ieee80211_ptr);
8061 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
8062 local_state_change);
8063 wdev_unlock(dev->ieee80211_ptr);
8064 return err;
636a5d36
JM		 8065}
8066
dd5b4cc7
FF		 8067static bool
8068nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
57fbcce3 8069 int mcast_rate[NUM_NL80211_BANDS],
dd5b4cc7
FF		 8070 int rateval)
8071{
8072 struct wiphy *wiphy = &rdev->wiphy;
8073 bool found = false;
8074 int band, i;
8075
57fbcce3 8076 for (band = 0; band < NUM_NL80211_BANDS; band++) {
dd5b4cc7
FF		 8077 struct ieee80211_supported_band *sband;
8078
8079 sband = wiphy->bands[band];
8080 if (!sband)
8081 continue;
8082
8083 for (i = 0; i < sband->n_bitrates; i++) {
8084 if (sband->bitrates[i].bitrate == rateval) {
8085 mcast_rate[band] = i + 1;
8086 found = true;
8087 break;
8088 }
8089 }
8090 }
8091
8092 return found;
8093}
8094
04a773ad
JB		 8095static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
8096{
4c476991
JB		 8097 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8098 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 8099 struct cfg80211_ibss_params ibss;
8100 struct wiphy *wiphy;
fffd0934 8101 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 8102 int err;
8103
8e30bc55
JB		 8104 memset(&ibss, 0, sizeof(ibss));
8105
04a773ad
JB		 8106 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8107 return -EINVAL;
8108
683b6d3b 8109 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 8110 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8111 return -EINVAL;
8112
8e30bc55
JB		 8113 ibss.beacon_interval = 100;
8114
12d20fc9 8115 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8e30bc55
JB		 8116 ibss.beacon_interval =
8117 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9
PK		 8118
8119 err = cfg80211_validate_beacon_int(rdev, ibss.beacon_interval);
8120 if (err)
8121 return err;
8e30bc55 8122
4c476991
JB		 8123 if (!rdev->ops->join_ibss)
8124 return -EOPNOTSUPP;
04a773ad 8125
4c476991
JB		 8126 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8127 return -EOPNOTSUPP;
04a773ad 8128
79c97e97 8129 wiphy = &rdev->wiphy;
04a773ad 8130
39193498 8131 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 8132 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 8133
8134 if (!is_valid_ether_addr(ibss.bssid))
8135 return -EINVAL;
8136 }
04a773ad
JB		 8137 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8138 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8139
8140 if (info->attrs[NL80211_ATTR_IE]) {
8141 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8142 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8143 }
8144
683b6d3b
JB		 8145 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
8146 if (err)
8147 return err;
04a773ad 8148
174e0cd2
IP		 8149 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
8150 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 8151 return -EINVAL;
8152
2f301ab2 8153 switch (ibss.chandef.width) {
bf372645
SW		 8154 case NL80211_CHAN_WIDTH_5:
8155 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 8156 case NL80211_CHAN_WIDTH_20_NOHT:
8157 break;
8158 case NL80211_CHAN_WIDTH_20:
8159 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 8160 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8161 return -EINVAL;
8162 break;
8163 case NL80211_CHAN_WIDTH_80:
8164 case NL80211_CHAN_WIDTH_80P80:
8165 case NL80211_CHAN_WIDTH_160:
8166 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8167 return -EINVAL;
8168 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8169 NL80211_EXT_FEATURE_VHT_IBSS))
8170 return -EINVAL;
8171 break;
2f301ab2 8172 default:
c04d6150 8173 return -EINVAL;
2f301ab2 8174 }
db9c64cf 8175
04a773ad 8176 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 8177 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
8178
fbd2c8dc
TP		 8179 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8180 u8 *rates =
8181 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8182 int n_rates =
8183 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8184 struct ieee80211_supported_band *sband =
683b6d3b 8185 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 8186
34850ab2
JB		 8187 err = ieee80211_get_ratemask(sband, rates, n_rates,
8188 &ibss.basic_rates);
8189 if (err)
8190 return err;
fbd2c8dc 8191 }
dd5b4cc7 8192
803768f5
SW		 8193 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8194 memcpy(&ibss.ht_capa_mask,
8195 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8196 sizeof(ibss.ht_capa_mask));
8197
8198 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8199 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8200 return -EINVAL;
8201 memcpy(&ibss.ht_capa,
8202 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8203 sizeof(ibss.ht_capa));
8204 }
8205
dd5b4cc7
FF		 8206 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8207 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
8208 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8209 return -EINVAL;
fbd2c8dc 8210
4c476991 8211 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 8212 bool no_ht = false;
8213
4c476991 8214 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 8215 info->attrs[NL80211_ATTR_KEYS],
8216 &no_ht);
4c476991
JB		 8217 if (IS_ERR(connkeys))
8218 return PTR_ERR(connkeys);
de7044ee 8219
3d9d1d66
JB		 8220 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
8221 no_ht) {
5e950a78 8222 kzfree(connkeys);
de7044ee
SM		 8223 return -EINVAL;
8224 }
4c476991 8225 }
04a773ad 8226
267335d6
AQ		 8227 ibss.control_port =
8228 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
8229
5336fa88
SW		 8230 ibss.userspace_handles_dfs =
8231 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
8232
4c476991 8233 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 8234 if (err)
b47f610b 8235 kzfree(connkeys);
04a773ad
JB		 8236 return err;
8237}
8238
8239static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
8240{
4c476991
JB		 8241 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8242 struct net_device *dev = info->user_ptr[1];
04a773ad 8243
4c476991
JB		 8244 if (!rdev->ops->leave_ibss)
8245 return -EOPNOTSUPP;
04a773ad 8246
4c476991
JB		 8247 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8248 return -EOPNOTSUPP;
04a773ad 8249
4c476991 8250 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 8251}
8252
f4e583c8
AQ		 8253static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
8254{
8255 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8256 struct net_device *dev = info->user_ptr[1];
57fbcce3 8257 int mcast_rate[NUM_NL80211_BANDS];
f4e583c8
AQ		 8258 u32 nla_rate;
8259 int err;
8260
8261 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 8262 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
8263 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 8264 return -EOPNOTSUPP;
8265
8266 if (!rdev->ops->set_mcast_rate)
8267 return -EOPNOTSUPP;
8268
8269 memset(mcast_rate, 0, sizeof(mcast_rate));
8270
8271 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
8272 return -EINVAL;
8273
8274 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
8275 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
8276 return -EINVAL;
8277
a1056b1b 8278 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 8279
8280 return err;
8281}
8282
ad7e718c
JB		 8283static struct sk_buff *
8284__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 8285 struct wireless_dev *wdev, int approxlen,
8286 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 8287 enum nl80211_attrs attr,
8288 const struct nl80211_vendor_cmd_info *info,
8289 gfp_t gfp)
ad7e718c
JB		 8290{
8291 struct sk_buff *skb;
8292 void *hdr;
8293 struct nlattr *data;
8294
8295 skb = nlmsg_new(approxlen + 100, gfp);
8296 if (!skb)
8297 return NULL;
8298
8299 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
8300 if (!hdr) {
8301 kfree_skb(skb);
8302 return NULL;
8303 }
8304
8305 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
8306 goto nla_put_failure;
567ffc35
JB		 8307
8308 if (info) {
8309 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
8310 info->vendor_id))
8311 goto nla_put_failure;
8312 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
8313 info->subcmd))
8314 goto nla_put_failure;
8315 }
8316
6c09e791 8317 if (wdev) {
2dad624e
ND		 8318 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
8319 wdev_id(wdev), NL80211_ATTR_PAD))
6c09e791
AK		 8320 goto nla_put_failure;
8321 if (wdev->netdev &&
8322 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
8323 wdev->netdev->ifindex))
8324 goto nla_put_failure;
8325 }
8326
ad7e718c 8327 data = nla_nest_start(skb, attr);
76e1fb4b
JB		 8328 if (!data)
8329 goto nla_put_failure;
ad7e718c
JB		 8330
8331 ((void **)skb->cb)[0] = rdev;
8332 ((void **)skb->cb)[1] = hdr;
8333 ((void **)skb->cb)[2] = data;
8334
8335 return skb;
8336
8337 nla_put_failure:
8338 kfree_skb(skb);
8339 return NULL;
8340}
f4e583c8 8341
e03ad6ea 8342struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 8343 struct wireless_dev *wdev,
e03ad6ea
JB		 8344 enum nl80211_commands cmd,
8345 enum nl80211_attrs attr,
8346 int vendor_event_idx,
8347 int approxlen, gfp_t gfp)
8348{
f26cbf40 8349 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 8350 const struct nl80211_vendor_cmd_info *info;
8351
8352 switch (cmd) {
8353 case NL80211_CMD_TESTMODE:
8354 if (WARN_ON(vendor_event_idx != -1))
8355 return NULL;
8356 info = NULL;
8357 break;
8358 case NL80211_CMD_VENDOR:
8359 if (WARN_ON(vendor_event_idx < 0 ||
8360 vendor_event_idx >= wiphy->n_vendor_events))
8361 return NULL;
8362 info = &wiphy->vendor_events[vendor_event_idx];
8363 break;
8364 default:
8365 WARN_ON(1);
8366 return NULL;
8367 }
8368
6c09e791 8369 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 8370 cmd, attr, info, gfp);
8371}
8372EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8373
8374void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8375{
8376 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8377 void *hdr = ((void **)skb->cb)[1];
8378 struct nlattr *data = ((void **)skb->cb)[2];
8379 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8380
bd8c78e7
JB		 8381 /* clear CB data for netlink core to own from now on */
8382 memset(skb->cb, 0, sizeof(skb->cb));
8383
e03ad6ea
JB		 8384 nla_nest_end(skb, data);
8385 genlmsg_end(skb, hdr);
8386
8387 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8388 mcgrp = NL80211_MCGRP_VENDOR;
8389
8390 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8391 mcgrp, gfp);
8392}
8393EXPORT_SYMBOL(__cfg80211_send_event_skb);
8394
aff89a9b 8395#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 8396static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8397{
4c476991 8398 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 8399 struct wireless_dev *wdev =
8400 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 8401 int err;
8402
fc73f11f
DS		 8403 if (!rdev->ops->testmode_cmd)
8404 return -EOPNOTSUPP;
8405
8406 if (IS_ERR(wdev)) {
8407 err = PTR_ERR(wdev);
8408 if (err != -EINVAL)
8409 return err;
8410 wdev = NULL;
8411 } else if (wdev->wiphy != &rdev->wiphy) {
8412 return -EINVAL;
8413 }
8414
aff89a9b
JB		 8415 if (!info->attrs[NL80211_ATTR_TESTDATA])
8416 return -EINVAL;
8417
ad7e718c 8418 rdev->cur_cmd_info = info;
fc73f11f 8419 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 8420 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8421 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 8422 rdev->cur_cmd_info = NULL;
aff89a9b 8423
aff89a9b
JB		 8424 return err;
8425}
8426
71063f0e
WYG		 8427static int nl80211_testmode_dump(struct sk_buff *skb,
8428 struct netlink_callback *cb)
8429{
00918d33 8430 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 8431 int err;
8432 long phy_idx;
8433 void *data = NULL;
8434 int data_len = 0;
8435
5fe231e8
JB		 8436 rtnl_lock();
8437
71063f0e
WYG		 8438 if (cb->args[0]) {
8439 /*
8440 * 0 is a valid index, but not valid for args[0],
8441 * so we need to offset by 1.
8442 */
8443 phy_idx = cb->args[0] - 1;
8444 } else {
8445 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
8446 nl80211_fam.attrbuf, nl80211_fam.maxattr,
8447 nl80211_policy);
8448 if (err)
5fe231e8 8449 goto out_err;
00918d33 8450
2bd7e35d
JB		 8451 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
8452 nl80211_fam.attrbuf);
8453 if (IS_ERR(rdev)) {
5fe231e8
JB		 8454 err = PTR_ERR(rdev);
8455 goto out_err;
00918d33 8456 }
2bd7e35d
JB		 8457 phy_idx = rdev->wiphy_idx;
8458 rdev = NULL;
2bd7e35d 8459
71063f0e
WYG		 8460 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
8461 cb->args[1] =
8462 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
8463 }
8464
8465 if (cb->args[1]) {
8466 data = nla_data((void *)cb->args[1]);
8467 data_len = nla_len((void *)cb->args[1]);
8468 }
8469
00918d33
JB		 8470 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8471 if (!rdev) {
5fe231e8
JB		 8472 err = -ENOENT;
8473 goto out_err;
71063f0e 8474 }
71063f0e 8475
00918d33 8476 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 8477 err = -EOPNOTSUPP;
8478 goto out_err;
8479 }
8480
8481 while (1) {
15e47304 8482 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 8483 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8484 NL80211_CMD_TESTMODE);
8485 struct nlattr *tmdata;
8486
cb35fba3
DC		 8487 if (!hdr)
8488 break;
8489
9360ffd1 8490 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 8491 genlmsg_cancel(skb, hdr);
8492 break;
8493 }
8494
8495 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8496 if (!tmdata) {
8497 genlmsg_cancel(skb, hdr);
8498 break;
8499 }
e35e4d28 8500 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 8501 nla_nest_end(skb, tmdata);
8502
8503 if (err == -ENOBUFS || err == -ENOENT) {
8504 genlmsg_cancel(skb, hdr);
8505 break;
8506 } else if (err) {
8507 genlmsg_cancel(skb, hdr);
8508 goto out_err;
8509 }
8510
8511 genlmsg_end(skb, hdr);
8512 }
8513
8514 err = skb->len;
8515 /* see above */
8516 cb->args[0] = phy_idx + 1;
8517 out_err:
5fe231e8 8518 rtnl_unlock();
71063f0e
WYG		 8519 return err;
8520}
aff89a9b
JB		 8521#endif
8522
b23aa676
SO		 8523static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8524{
4c476991
JB		 8525 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8526 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 8527 struct cfg80211_connect_params connect;
8528 struct wiphy *wiphy;
fffd0934 8529 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 8530 int err;
8531
8532 memset(&connect, 0, sizeof(connect));
8533
8534 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8535 return -EINVAL;
8536
8537 if (!info->attrs[NL80211_ATTR_SSID] ||
8538 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8539 return -EINVAL;
8540
8541 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8542 connect.auth_type =
8543 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8544 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8545 NL80211_CMD_CONNECT))
b23aa676
SO		 8546 return -EINVAL;
8547 } else
8548 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8549
8550 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8551
c0692b8f 8552 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8553 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8554 if (err)
8555 return err;
b23aa676 8556
074ac8df 8557 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8558 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8559 return -EOPNOTSUPP;
b23aa676 8560
79c97e97 8561 wiphy = &rdev->wiphy;
b23aa676 8562
4486ea98
BS		 8563 connect.bg_scan_period = -1;
8564 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8565 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8566 connect.bg_scan_period =
8567 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8568 }
8569
b23aa676
SO		 8570 if (info->attrs[NL80211_ATTR_MAC])
8571 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8572 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8573 connect.bssid_hint =
8574 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8575 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8576 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8577
8578 if (info->attrs[NL80211_ATTR_IE]) {
8579 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8580 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8581 }
8582
cee00a95
JM		 8583 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8584 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8585 if (connect.mfp != NL80211_MFP_REQUIRED &&
8586 connect.mfp != NL80211_MFP_NO)
8587 return -EINVAL;
8588 } else {
8589 connect.mfp = NL80211_MFP_NO;
8590 }
8591
ba6fbacf
JM		 8592 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8593 connect.prev_bssid =
8594 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8595
b23aa676 8596 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 8597 connect.channel = nl80211_get_valid_chan(
8598 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8599 if (!connect.channel)
1df4a510
JM		 8600 return -EINVAL;
8601 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 8602 connect.channel_hint = nl80211_get_valid_chan(
8603 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8604 if (!connect.channel_hint)
4c476991 8605 return -EINVAL;
b23aa676
SO		 8606 }
8607
fffd0934
JB		 8608 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8609 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 8610 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 8611 if (IS_ERR(connkeys))
8612 return PTR_ERR(connkeys);
fffd0934
JB		 8613 }
8614
7e7c8926
BG		 8615 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8616 connect.flags |= ASSOC_REQ_DISABLE_HT;
8617
8618 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8619 memcpy(&connect.ht_capa_mask,
8620 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8621 sizeof(connect.ht_capa_mask));
8622
8623 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 8624 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 8625 kzfree(connkeys);
7e7c8926 8626 return -EINVAL;
b4e4f47e 8627 }
7e7c8926
BG		 8628 memcpy(&connect.ht_capa,
8629 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8630 sizeof(connect.ht_capa));
8631 }
8632
ee2aca34
JB		 8633 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8634 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8635
8636 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8637 memcpy(&connect.vht_capa_mask,
8638 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8639 sizeof(connect.vht_capa_mask));
8640
8641 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8642 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 8643 kzfree(connkeys);
ee2aca34
JB		 8644 return -EINVAL;
8645 }
8646 memcpy(&connect.vht_capa,
8647 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8648 sizeof(connect.vht_capa));
8649 }
8650
bab5ab7d 8651 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8652 if (!((rdev->wiphy.features &
8653 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8654 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8655 !wiphy_ext_feature_isset(&rdev->wiphy,
8656 NL80211_EXT_FEATURE_RRM)) {
707554b4 8657 kzfree(connkeys);
bab5ab7d 8658 return -EINVAL;
707554b4 8659 }
bab5ab7d
AK		 8660 connect.flags |= ASSOC_REQ_USE_RRM;
8661 }
8662
34d50519 8663 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 8664 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
34d50519
LD		 8665 kzfree(connkeys);
8666 return -EOPNOTSUPP;
8667 }
8668
38de03d2
AS		 8669 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8670 /* bss selection makes no sense if bssid is set */
8671 if (connect.bssid) {
8672 kzfree(connkeys);
8673 return -EINVAL;
8674 }
8675
8676 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8677 wiphy, &connect.bss_select);
8678 if (err) {
8679 kzfree(connkeys);
8680 return err;
8681 }
8682 }
8683
83739b03 8684 wdev_lock(dev->ieee80211_ptr);
4ce2bd9c
JM		 8685 err = cfg80211_connect(rdev, dev, &connect, connkeys,
8686 connect.prev_bssid);
83739b03 8687 wdev_unlock(dev->ieee80211_ptr);
fffd0934 8688 if (err)
b47f610b 8689 kzfree(connkeys);
b23aa676
SO		 8690 return err;
8691}
8692
8693static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8694{
4c476991
JB		 8695 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8696 struct net_device *dev = info->user_ptr[1];
b23aa676 8697 u16 reason;
83739b03 8698 int ret;
b23aa676
SO		 8699
8700 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8701 reason = WLAN_REASON_DEAUTH_LEAVING;
8702 else
8703 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8704
8705 if (reason == 0)
8706 return -EINVAL;
8707
074ac8df 8708 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8709 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8710 return -EOPNOTSUPP;
b23aa676 8711
83739b03
JB		 8712 wdev_lock(dev->ieee80211_ptr);
8713 ret = cfg80211_disconnect(rdev, dev, reason, true);
8714 wdev_unlock(dev->ieee80211_ptr);
8715 return ret;
b23aa676
SO		 8716}
8717
463d0183
JB		 8718static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8719{
4c476991 8720 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 8721 struct net *net;
8722 int err;
463d0183 8723
4b681c82
VK		 8724 if (info->attrs[NL80211_ATTR_PID]) {
8725 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8726
8727 net = get_net_ns_by_pid(pid);
8728 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8729 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 8730
4b681c82
VK		 8731 net = get_net_ns_by_fd(fd);
8732 } else {
8733 return -EINVAL;
8734 }
463d0183 8735
4c476991
JB		 8736 if (IS_ERR(net))
8737 return PTR_ERR(net);
463d0183
JB		 8738
8739 err = 0;
8740
8741 /* check if anything to do */
4c476991
JB		 8742 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8743 err = cfg80211_switch_netns(rdev, net);
463d0183 8744
463d0183 8745 put_net(net);
463d0183
JB		 8746 return err;
8747}
8748
67fbb16b
SO		 8749static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8750{
4c476991 8751 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 8752 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8753 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 8754 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 8755 struct cfg80211_pmksa pmksa;
8756
8757 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8758
8759 if (!info->attrs[NL80211_ATTR_MAC])
8760 return -EINVAL;
8761
8762 if (!info->attrs[NL80211_ATTR_PMKID])
8763 return -EINVAL;
8764
67fbb16b
SO		 8765 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8766 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8767
074ac8df 8768 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8769 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8770 return -EOPNOTSUPP;
67fbb16b
SO		 8771
8772 switch (info->genlhdr->cmd) {
8773 case NL80211_CMD_SET_PMKSA:
8774 rdev_ops = rdev->ops->set_pmksa;
8775 break;
8776 case NL80211_CMD_DEL_PMKSA:
8777 rdev_ops = rdev->ops->del_pmksa;
8778 break;
8779 default:
8780 WARN_ON(1);
8781 break;
8782 }
8783
4c476991
JB		 8784 if (!rdev_ops)
8785 return -EOPNOTSUPP;
67fbb16b 8786
4c476991 8787 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 8788}
8789
8790static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8791{
4c476991
JB		 8792 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8793 struct net_device *dev = info->user_ptr[1];
67fbb16b 8794
074ac8df 8795 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8796 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8797 return -EOPNOTSUPP;
67fbb16b 8798
4c476991
JB		 8799 if (!rdev->ops->flush_pmksa)
8800 return -EOPNOTSUPP;
67fbb16b 8801
e35e4d28 8802 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 8803}
8804
109086ce
AN		 8805static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8806{
8807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8808 struct net_device *dev = info->user_ptr[1];
8809 u8 action_code, dialog_token;
df942e7b 8810 u32 peer_capability = 0;
109086ce
AN		 8811 u16 status_code;
8812 u8 *peer;
31fa97c5 8813 bool initiator;
109086ce
AN		 8814
8815 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8816 !rdev->ops->tdls_mgmt)
8817 return -EOPNOTSUPP;
8818
8819 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8820 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8821 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8822 !info->attrs[NL80211_ATTR_IE] ||
8823 !info->attrs[NL80211_ATTR_MAC])
8824 return -EINVAL;
8825
8826 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8827 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8828 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8829 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 8830 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 8831 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8832 peer_capability =
8833 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 8834
e35e4d28 8835 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 8836 dialog_token, status_code, peer_capability,
31fa97c5 8837 initiator,
e35e4d28
HG		 8838 nla_data(info->attrs[NL80211_ATTR_IE]),
8839 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 8840}
8841
8842static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8843{
8844 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8845 struct net_device *dev = info->user_ptr[1];
8846 enum nl80211_tdls_operation operation;
8847 u8 *peer;
8848
8849 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8850 !rdev->ops->tdls_oper)
8851 return -EOPNOTSUPP;
8852
8853 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8854 !info->attrs[NL80211_ATTR_MAC])
8855 return -EINVAL;
8856
8857 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8858 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8859
e35e4d28 8860 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 8861}
8862
9588bbd5
JM		 8863static int nl80211_remain_on_channel(struct sk_buff *skb,
8864 struct genl_info *info)
8865{
4c476991 8866 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8867 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8868 struct cfg80211_chan_def chandef;
9588bbd5
JM		 8869 struct sk_buff *msg;
8870 void *hdr;
8871 u64 cookie;
683b6d3b 8872 u32 duration;
9588bbd5
JM		 8873 int err;
8874
8875 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8876 !info->attrs[NL80211_ATTR_DURATION])
8877 return -EINVAL;
8878
8879 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8880
ebf348fc
JB		 8881 if (!rdev->ops->remain_on_channel ||
8882 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8883 return -EOPNOTSUPP;
8884
9588bbd5 8885 /*
ebf348fc
JB		 8886 * We should be on that channel for at least a minimum amount of
8887 * time (10ms) but no longer than the driver supports.
9588bbd5 8888 */
ebf348fc 8889 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 8890 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 8891 return -EINVAL;
8892
683b6d3b
JB		 8893 err = nl80211_parse_chandef(rdev, info, &chandef);
8894 if (err)
8895 return err;
9588bbd5
JM		 8896
8897 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8898 if (!msg)
8899 return -ENOMEM;
9588bbd5 8900
15e47304 8901 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 8902 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 8903 if (!hdr) {
8904 err = -ENOBUFS;
9588bbd5
JM		 8905 goto free_msg;
8906 }
8907
683b6d3b
JB		 8908 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8909 duration, &cookie);
9588bbd5
JM		 8910
8911 if (err)
8912 goto free_msg;
8913
2dad624e
ND		 8914 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
8915 NL80211_ATTR_PAD))
9360ffd1 8916 goto nla_put_failure;
9588bbd5
JM		 8917
8918 genlmsg_end(msg, hdr);
4c476991
JB		 8919
8920 return genlmsg_reply(msg, info);
9588bbd5
JM		 8921
8922 nla_put_failure:
8923 err = -ENOBUFS;
8924 free_msg:
8925 nlmsg_free(msg);
9588bbd5
JM		 8926 return err;
8927}
8928
8929static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8930 struct genl_info *info)
8931{
4c476991 8932 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8933 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8934 u64 cookie;
9588bbd5
JM		 8935
8936 if (!info->attrs[NL80211_ATTR_COOKIE])
8937 return -EINVAL;
8938
4c476991
JB		 8939 if (!rdev->ops->cancel_remain_on_channel)
8940 return -EOPNOTSUPP;
9588bbd5 8941
9588bbd5
JM		 8942 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8943
e35e4d28 8944 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8945}
8946
13ae75b1
JM		 8947static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8948 struct genl_info *info)
8949{
13ae75b1 8950 struct cfg80211_bitrate_mask mask;
a7c7fbff 8951 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8952 struct net_device *dev = info->user_ptr[1];
a7c7fbff 8953 int err;
13ae75b1 8954
4c476991
JB		 8955 if (!rdev->ops->set_bitrate_mask)
8956 return -EOPNOTSUPP;
13ae75b1 8957
a7c7fbff
PK		 8958 err = nl80211_parse_tx_bitrate_mask(info, &mask);
8959 if (err)
8960 return err;
13ae75b1 8961
e35e4d28 8962 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8963}
8964
2e161f78 8965static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8966{
4c476991 8967 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8968 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8969 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8970
8971 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8972 return -EINVAL;
8973
2e161f78
JB		 8974 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8975 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8976
71bbc994
JB		 8977 switch (wdev->iftype) {
8978 case NL80211_IFTYPE_STATION:
8979 case NL80211_IFTYPE_ADHOC:
8980 case NL80211_IFTYPE_P2P_CLIENT:
8981 case NL80211_IFTYPE_AP:
8982 case NL80211_IFTYPE_AP_VLAN:
8983 case NL80211_IFTYPE_MESH_POINT:
8984 case NL80211_IFTYPE_P2P_GO:
98104fde 8985 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 8986 break;
cb3b7d87 8987 case NL80211_IFTYPE_NAN:
71bbc994 8988 default:
4c476991 8989 return -EOPNOTSUPP;
71bbc994 8990 }
026331c4
JM		 8991
8992 /* not much point in registering if we can't reply */
4c476991
JB		 8993 if (!rdev->ops->mgmt_tx)
8994 return -EOPNOTSUPP;
026331c4 8995
15e47304 8996 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8997 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8998 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8999}
9000
2e161f78 9001static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 9002{
4c476991 9003 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9004 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 9005 struct cfg80211_chan_def chandef;
026331c4 9006 int err;
d64d373f 9007 void *hdr = NULL;
026331c4 9008 u64 cookie;
e247bd90 9009 struct sk_buff *msg = NULL;
b176e629
AO		 9010 struct cfg80211_mgmt_tx_params params = {
9011 .dont_wait_for_ack =
9012 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
9013 };
026331c4 9014
683b6d3b 9015 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 9016 return -EINVAL;
9017
4c476991
JB		 9018 if (!rdev->ops->mgmt_tx)
9019 return -EOPNOTSUPP;
026331c4 9020
71bbc994 9021 switch (wdev->iftype) {
ea141b75
AQ		 9022 case NL80211_IFTYPE_P2P_DEVICE:
9023 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
9024 return -EINVAL;
71bbc994
JB		 9025 case NL80211_IFTYPE_STATION:
9026 case NL80211_IFTYPE_ADHOC:
9027 case NL80211_IFTYPE_P2P_CLIENT:
9028 case NL80211_IFTYPE_AP:
9029 case NL80211_IFTYPE_AP_VLAN:
9030 case NL80211_IFTYPE_MESH_POINT:
9031 case NL80211_IFTYPE_P2P_GO:
9032 break;
cb3b7d87 9033 case NL80211_IFTYPE_NAN:
71bbc994 9034 default:
4c476991 9035 return -EOPNOTSUPP;
71bbc994 9036 }
026331c4 9037
f7ca38df 9038 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 9039 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 9040 return -EINVAL;
b176e629 9041 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 9042
9043 /*
9044 * We should wait on the channel for at least a minimum amount
9045 * of time (10ms) but no longer than the driver supports.
9046 */
b176e629
AO		 9047 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9048 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc 9049 return -EINVAL;
f7ca38df
JB		 9050 }
9051
b176e629 9052 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 9053
b176e629 9054 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 9055 return -EINVAL;
9056
b176e629 9057 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 9058
ea141b75
AQ		 9059 /* get the channel if any has been specified, otherwise pass NULL to
9060 * the driver. The latter will use the current one
9061 */
9062 chandef.chan = NULL;
9063 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9064 err = nl80211_parse_chandef(rdev, info, &chandef);
9065 if (err)
9066 return err;
9067 }
9068
b176e629 9069 if (!chandef.chan && params.offchan)
ea141b75 9070 return -EINVAL;
026331c4 9071
34d22ce2
AO		 9072 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
9073 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
9074
9075 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
9076 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9077 int i;
9078
9079 if (len % sizeof(u16))
9080 return -EINVAL;
9081
9082 params.n_csa_offsets = len / sizeof(u16);
9083 params.csa_offsets =
9084 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9085
9086 /* check that all the offsets fit the frame */
9087 for (i = 0; i < params.n_csa_offsets; i++) {
9088 if (params.csa_offsets[i] >= params.len)
9089 return -EINVAL;
9090 }
9091 }
9092
b176e629 9093 if (!params.dont_wait_for_ack) {
e247bd90
JB		 9094 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9095 if (!msg)
9096 return -ENOMEM;
026331c4 9097
15e47304 9098 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 9099 NL80211_CMD_FRAME);
cb35fba3
DC		 9100 if (!hdr) {
9101 err = -ENOBUFS;
e247bd90
JB		 9102 goto free_msg;
9103 }
026331c4 9104 }
e247bd90 9105
b176e629
AO		 9106 params.chan = chandef.chan;
9107 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 9108 if (err)
9109 goto free_msg;
9110
e247bd90 9111 if (msg) {
2dad624e
ND		 9112 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9113 NL80211_ATTR_PAD))
9360ffd1 9114 goto nla_put_failure;
026331c4 9115
e247bd90
JB		 9116 genlmsg_end(msg, hdr);
9117 return genlmsg_reply(msg, info);
9118 }
9119
9120 return 0;
026331c4
JM		 9121
9122 nla_put_failure:
9123 err = -ENOBUFS;
9124 free_msg:
9125 nlmsg_free(msg);
026331c4
JM		 9126 return err;
9127}
9128
f7ca38df
JB		 9129static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
9130{
9131 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9132 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 9133 u64 cookie;
9134
9135 if (!info->attrs[NL80211_ATTR_COOKIE])
9136 return -EINVAL;
9137
9138 if (!rdev->ops->mgmt_tx_cancel_wait)
9139 return -EOPNOTSUPP;
9140
71bbc994
JB		 9141 switch (wdev->iftype) {
9142 case NL80211_IFTYPE_STATION:
9143 case NL80211_IFTYPE_ADHOC:
9144 case NL80211_IFTYPE_P2P_CLIENT:
9145 case NL80211_IFTYPE_AP:
9146 case NL80211_IFTYPE_AP_VLAN:
9147 case NL80211_IFTYPE_P2P_GO:
98104fde 9148 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994 9149 break;
cb3b7d87 9150 case NL80211_IFTYPE_NAN:
71bbc994 9151 default:
f7ca38df 9152 return -EOPNOTSUPP;
71bbc994 9153 }
f7ca38df
JB		 9154
9155 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9156
e35e4d28 9157 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 9158}
9159
ffb9eb3d
KV		 9160static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9161{
4c476991 9162 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 9163 struct wireless_dev *wdev;
4c476991 9164 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9165 u8 ps_state;
9166 bool state;
9167 int err;
9168
4c476991
JB		 9169 if (!info->attrs[NL80211_ATTR_PS_STATE])
9170 return -EINVAL;
ffb9eb3d
KV		 9171
9172 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9173
4c476991
JB		 9174 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9175 return -EINVAL;
ffb9eb3d
KV		 9176
9177 wdev = dev->ieee80211_ptr;
9178
4c476991
JB		 9179 if (!rdev->ops->set_power_mgmt)
9180 return -EOPNOTSUPP;
ffb9eb3d
KV		 9181
9182 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9183
9184 if (state == wdev->ps)
4c476991 9185 return 0;
ffb9eb3d 9186
e35e4d28 9187 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 9188 if (!err)
9189 wdev->ps = state;
ffb9eb3d
KV		 9190 return err;
9191}
9192
9193static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9194{
4c476991 9195 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 9196 enum nl80211_ps_state ps_state;
9197 struct wireless_dev *wdev;
4c476991 9198 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9199 struct sk_buff *msg;
9200 void *hdr;
9201 int err;
9202
ffb9eb3d
KV		 9203 wdev = dev->ieee80211_ptr;
9204
4c476991
JB		 9205 if (!rdev->ops->set_power_mgmt)
9206 return -EOPNOTSUPP;
ffb9eb3d
KV		 9207
9208 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9209 if (!msg)
9210 return -ENOMEM;
ffb9eb3d 9211
15e47304 9212 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 9213 NL80211_CMD_GET_POWER_SAVE);
9214 if (!hdr) {
4c476991 9215 err = -ENOBUFS;
ffb9eb3d
KV		 9216 goto free_msg;
9217 }
9218
9219 if (wdev->ps)
9220 ps_state = NL80211_PS_ENABLED;
9221 else
9222 ps_state = NL80211_PS_DISABLED;
9223
9360ffd1
DM		 9224 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9225 goto nla_put_failure;
ffb9eb3d
KV		 9226
9227 genlmsg_end(msg, hdr);
4c476991 9228 return genlmsg_reply(msg, info);
ffb9eb3d 9229
4c476991 9230 nla_put_failure:
ffb9eb3d 9231 err = -ENOBUFS;
4c476991 9232 free_msg:
ffb9eb3d 9233 nlmsg_free(msg);
ffb9eb3d
KV		 9234 return err;
9235}
9236
94e860f1
JB		 9237static const struct nla_policy
9238nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 9239 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
9240 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9241 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 9242 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9243 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9244 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 9245};
9246
84f10708 9247static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 9248 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 9249{
9250 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 9251 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9252 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 9253
d9d8b019 9254 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 9255 return -EINVAL;
9256
84f10708
TP		 9257 if (!rdev->ops->set_cqm_txe_config)
9258 return -EOPNOTSUPP;
9259
9260 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9261 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9262 return -EOPNOTSUPP;
9263
e35e4d28 9264 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 9265}
9266
d6dc1a38
JO		 9267static int nl80211_set_cqm_rssi(struct genl_info *info,
9268 s32 threshold, u32 hysteresis)
9269{
4c476991 9270 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9271 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9272 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 9273
9274 if (threshold > 0)
9275 return -EINVAL;
9276
1da5fcc8
JB		 9277 /* disabling - hysteresis should also be zero then */
9278 if (threshold == 0)
9279 hysteresis = 0;
d6dc1a38 9280
4c476991
JB		 9281 if (!rdev->ops->set_cqm_rssi_config)
9282 return -EOPNOTSUPP;
d6dc1a38 9283
074ac8df 9284 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9285 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9286 return -EOPNOTSUPP;
d6dc1a38 9287
e35e4d28 9288 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 9289}
9290
9291static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9292{
9293 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9294 struct nlattr *cqm;
9295 int err;
9296
9297 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 9298 if (!cqm)
9299 return -EINVAL;
d6dc1a38
JO		 9300
9301 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
9302 nl80211_attr_cqm_policy);
9303 if (err)
1da5fcc8 9304 return err;
d6dc1a38
JO		 9305
9306 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9307 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 9308 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9309 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 9310
1da5fcc8
JB		 9311 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
9312 }
9313
9314 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9315 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9316 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9317 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9318 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9319 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9320
9321 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9322 }
9323
9324 return -EINVAL;
d6dc1a38
JO		 9325}
9326
6e0bd6c3
RL		 9327static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9328{
9329 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9330 struct net_device *dev = info->user_ptr[1];
9331 struct ocb_setup setup = {};
9332 int err;
9333
9334 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9335 if (err)
9336 return err;
9337
9338 return cfg80211_join_ocb(rdev, dev, &setup);
9339}
9340
9341static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9342{
9343 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9344 struct net_device *dev = info->user_ptr[1];
9345
9346 return cfg80211_leave_ocb(rdev, dev);
9347}
9348
29cbe68c
JB		 9349static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9350{
9351 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9352 struct net_device *dev = info->user_ptr[1];
9353 struct mesh_config cfg;
c80d545d 9354 struct mesh_setup setup;
29cbe68c
JB		 9355 int err;
9356
9357 /* start with default */
9358 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9359 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9360
24bdd9f4 9361 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9362 /* and parse parameters if given */
24bdd9f4 9363 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9364 if (err)
9365 return err;
9366 }
9367
9368 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9369 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9370 return -EINVAL;
9371
c80d545d
JC		 9372 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9373 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9374
4bb62344
CYY		 9375 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9376 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9377 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9378 return -EINVAL;
9379
9bdbf04d
MP		 9380 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9381 setup.beacon_interval =
9382 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9
PK		 9383
9384 err = cfg80211_validate_beacon_int(rdev, setup.beacon_interval);
9385 if (err)
9386 return err;
9bdbf04d
MP		 9387 }
9388
9389 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9390 setup.dtim_period =
9391 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9392 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9393 return -EINVAL;
9394 }
9395
c80d545d
JC		 9396 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9397 /* parse additional setup parameters if given */
9398 err = nl80211_parse_mesh_setup(info, &setup);
9399 if (err)
9400 return err;
9401 }
9402
d37bb18a
TP		 9403 if (setup.user_mpm)
9404 cfg.auto_open_plinks = false;
9405
cc1d2806 9406 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 9407 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9408 if (err)
9409 return err;
cc1d2806
JB		 9410 } else {
9411 /* cfg80211_join_mesh() will sort it out */
683b6d3b 9412 setup.chandef.chan = NULL;
cc1d2806
JB		 9413 }
9414
ffb3cf30
AN		 9415 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9416 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9417 int n_rates =
9418 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9419 struct ieee80211_supported_band *sband;
9420
9421 if (!setup.chandef.chan)
9422 return -EINVAL;
9423
9424 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9425
9426 err = ieee80211_get_ratemask(sband, rates, n_rates,
9427 &setup.basic_rates);
9428 if (err)
9429 return err;
9430 }
9431
8564e382
JB		 9432 if (info->attrs[NL80211_ATTR_TX_RATES]) {
9433 err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
9434 if (err)
9435 return err;
9436
9437 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
9438 &setup.beacon_rate);
9439 if (err)
9440 return err;
9441 }
9442
c80d545d 9443 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 9444}
9445
9446static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9447{
9448 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9449 struct net_device *dev = info->user_ptr[1];
9450
9451 return cfg80211_leave_mesh(rdev, dev);
9452}
9453
dfb89c56 9454#ifdef CONFIG_PM
bb92d199
AK		 9455static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9456 struct cfg80211_registered_device *rdev)
9457{
6abb9cb9 9458 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 9459 struct nlattr *nl_pats, *nl_pat;
9460 int i, pat_len;
9461
6abb9cb9 9462 if (!wowlan->n_patterns)
bb92d199
AK		 9463 return 0;
9464
9465 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9466 if (!nl_pats)
9467 return -ENOBUFS;
9468
6abb9cb9 9469 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 9470 nl_pat = nla_nest_start(msg, i + 1);
9471 if (!nl_pat)
9472 return -ENOBUFS;
6abb9cb9 9473 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 9474 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 9475 wowlan->patterns[i].mask) ||
50ac6607
AK		 9476 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9477 wowlan->patterns[i].pattern) ||
9478 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 9479 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 9480 return -ENOBUFS;
9481 nla_nest_end(msg, nl_pat);
9482 }
9483 nla_nest_end(msg, nl_pats);
9484
9485 return 0;
9486}
9487
2a0e047e
JB		 9488static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9489 struct cfg80211_wowlan_tcp *tcp)
9490{
9491 struct nlattr *nl_tcp;
9492
9493 if (!tcp)
9494 return 0;
9495
9496 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9497 if (!nl_tcp)
9498 return -ENOBUFS;
9499
930345ea
JB		 9500 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9501 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 9502 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9503 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9504 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9505 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9506 tcp->payload_len, tcp->payload) ||
9507 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9508 tcp->data_interval) ||
9509 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9510 tcp->wake_len, tcp->wake_data) ||
9511 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9512 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9513 return -ENOBUFS;
9514
9515 if (tcp->payload_seq.len &&
9516 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9517 sizeof(tcp->payload_seq), &tcp->payload_seq))
9518 return -ENOBUFS;
9519
9520 if (tcp->payload_tok.len &&
9521 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9522 sizeof(tcp->payload_tok) + tcp->tokens_size,
9523 &tcp->payload_tok))
9524 return -ENOBUFS;
9525
e248ad30
JB		 9526 nla_nest_end(msg, nl_tcp);
9527
2a0e047e
JB		 9528 return 0;
9529}
9530
75453ccb
LC		 9531static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9532 struct cfg80211_sched_scan_request *req)
9533{
3b06d277 9534 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 9535 int i;
9536
9537 if (!req)
9538 return 0;
9539
9540 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9541 if (!nd)
9542 return -ENOBUFS;
9543
3b06d277
AS		 9544 if (req->n_scan_plans == 1 &&
9545 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9546 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9547 return -ENOBUFS;
9548
21fea567
LC		 9549 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9550 return -ENOBUFS;
9551
75453ccb
LC		 9552 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9553 if (!freqs)
9554 return -ENOBUFS;
9555
53b18980
JB		 9556 for (i = 0; i < req->n_channels; i++) {
9557 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9558 return -ENOBUFS;
9559 }
75453ccb
LC		 9560
9561 nla_nest_end(msg, freqs);
9562
9563 if (req->n_match_sets) {
9564 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
76e1fb4b
JB		 9565 if (!matches)
9566 return -ENOBUFS;
9567
75453ccb
LC		 9568 for (i = 0; i < req->n_match_sets; i++) {
9569 match = nla_nest_start(msg, i);
76e1fb4b
JB		 9570 if (!match)
9571 return -ENOBUFS;
9572
53b18980
JB		 9573 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9574 req->match_sets[i].ssid.ssid_len,
9575 req->match_sets[i].ssid.ssid))
9576 return -ENOBUFS;
75453ccb
LC		 9577 nla_nest_end(msg, match);
9578 }
9579 nla_nest_end(msg, matches);
9580 }
9581
3b06d277
AS		 9582 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9583 if (!scan_plans)
9584 return -ENOBUFS;
9585
9586 for (i = 0; i < req->n_scan_plans; i++) {
9587 scan_plan = nla_nest_start(msg, i + 1);
76e1fb4b
JB		 9588 if (!scan_plan)
9589 return -ENOBUFS;
9590
3b06d277
AS		 9591 if (!scan_plan ||
9592 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9593 req->scan_plans[i].interval) ||
9594 (req->scan_plans[i].iterations &&
9595 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9596 req->scan_plans[i].iterations)))
9597 return -ENOBUFS;
9598 nla_nest_end(msg, scan_plan);
9599 }
9600 nla_nest_end(msg, scan_plans);
9601
75453ccb
LC		 9602 nla_nest_end(msg, nd);
9603
9604 return 0;
9605}
9606
ff1b6e69
JB		 9607static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9608{
9609 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9610 struct sk_buff *msg;
9611 void *hdr;
2a0e047e 9612 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 9613
964dc9e2 9614 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 9615 return -EOPNOTSUPP;
9616
6abb9cb9 9617 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 9618 /* adjust size to have room for all the data */
6abb9cb9
JB		 9619 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9620 rdev->wiphy.wowlan_config->tcp->payload_len +
9621 rdev->wiphy.wowlan_config->tcp->wake_len +
9622 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 9623 }
9624
9625 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 9626 if (!msg)
9627 return -ENOMEM;
9628
15e47304 9629 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 9630 NL80211_CMD_GET_WOWLAN);
9631 if (!hdr)
9632 goto nla_put_failure;
9633
6abb9cb9 9634 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 9635 struct nlattr *nl_wowlan;
9636
9637 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9638 if (!nl_wowlan)
9639 goto nla_put_failure;
9640
6abb9cb9 9641 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 9642 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 9643 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 9644 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 9645 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 9646 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 9647 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 9648 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 9649 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 9650 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 9651 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 9652 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 9653 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 9654 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9655 goto nla_put_failure;
2a0e047e 9656
bb92d199
AK		 9657 if (nl80211_send_wowlan_patterns(msg, rdev))
9658 goto nla_put_failure;
2a0e047e 9659
6abb9cb9
JB		 9660 if (nl80211_send_wowlan_tcp(msg,
9661 rdev->wiphy.wowlan_config->tcp))
2a0e047e 9662 goto nla_put_failure;
75453ccb
LC		 9663
9664 if (nl80211_send_wowlan_nd(
9665 msg,
9666 rdev->wiphy.wowlan_config->nd_config))
9667 goto nla_put_failure;
2a0e047e 9668
ff1b6e69
JB		 9669 nla_nest_end(msg, nl_wowlan);
9670 }
9671
9672 genlmsg_end(msg, hdr);
9673 return genlmsg_reply(msg, info);
9674
9675nla_put_failure:
9676 nlmsg_free(msg);
9677 return -ENOBUFS;
9678}
9679
2a0e047e
JB		 9680static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9681 struct nlattr *attr,
9682 struct cfg80211_wowlan *trig)
9683{
9684 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9685 struct cfg80211_wowlan_tcp *cfg;
9686 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9687 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9688 u32 size;
9689 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9690 int err, port;
9691
964dc9e2 9692 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 9693 return -EINVAL;
9694
9695 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9696 nla_data(attr), nla_len(attr),
9697 nl80211_wowlan_tcp_policy);
9698 if (err)
9699 return err;
9700
9701 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9702 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9703 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9704 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9705 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9706 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9707 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9708 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9709 return -EINVAL;
9710
9711 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 9712 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 9713 return -EINVAL;
9714
9715 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 9716 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 9717 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 9718 return -EINVAL;
9719
9720 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9721 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9722 return -EINVAL;
9723
9724 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9725 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9726 return -EINVAL;
9727
9728 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9729 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9730
9731 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9732 tokens_size = tokln - sizeof(*tok);
9733
9734 if (!tok->len || tokens_size % tok->len)
9735 return -EINVAL;
964dc9e2 9736 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9737 return -EINVAL;
964dc9e2 9738 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9739 return -EINVAL;
964dc9e2 9740 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9741 return -EINVAL;
964dc9e2 9742 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9743 return -EINVAL;
9744 if (tok->offset + tok->len > data_size)
9745 return -EINVAL;
9746 }
9747
9748 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9749 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9750 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9751 return -EINVAL;
9752 if (seq->len == 0 || seq->len > 4)
9753 return -EINVAL;
9754 if (seq->len + seq->offset > data_size)
9755 return -EINVAL;
9756 }
9757
9758 size = sizeof(*cfg);
9759 size += data_size;
9760 size += wake_size + wake_mask_size;
9761 size += tokens_size;
9762
9763 cfg = kzalloc(size, GFP_KERNEL);
9764 if (!cfg)
9765 return -ENOMEM;
67b61f6c
JB		 9766 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9767 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 9768 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9769 ETH_ALEN);
9770 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9771 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9772 else
9773 port = 0;
9774#ifdef CONFIG_INET
9775 /* allocate a socket and port for it and use it */
9776 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9777 IPPROTO_TCP, &cfg->sock, 1);
9778 if (err) {
9779 kfree(cfg);
9780 return err;
9781 }
9782 if (inet_csk_get_port(cfg->sock->sk, port)) {
9783 sock_release(cfg->sock);
9784 kfree(cfg);
9785 return -EADDRINUSE;
9786 }
9787 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9788#else
9789 if (!port) {
9790 kfree(cfg);
9791 return -EINVAL;
9792 }
9793 cfg->src_port = port;
9794#endif
9795
9796 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9797 cfg->payload_len = data_size;
9798 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9799 memcpy((void *)cfg->payload,
9800 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9801 data_size);
9802 if (seq)
9803 cfg->payload_seq = *seq;
9804 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9805 cfg->wake_len = wake_size;
9806 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9807 memcpy((void *)cfg->wake_data,
9808 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9809 wake_size);
9810 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9811 data_size + wake_size;
9812 memcpy((void *)cfg->wake_mask,
9813 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9814 wake_mask_size);
9815 if (tok) {
9816 cfg->tokens_size = tokens_size;
9817 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9818 }
9819
9820 trig->tcp = cfg;
9821
9822 return 0;
9823}
9824
8cd4d456
LC		 9825static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9826 const struct wiphy_wowlan_support *wowlan,
9827 struct nlattr *attr,
9828 struct cfg80211_wowlan *trig)
9829{
9830 struct nlattr **tb;
9831 int err;
9832
9833 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9834 if (!tb)
9835 return -ENOMEM;
9836
9837 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9838 err = -EOPNOTSUPP;
9839 goto out;
9840 }
9841
9842 err = nla_parse(tb, NL80211_ATTR_MAX,
9843 nla_data(attr), nla_len(attr),
9844 nl80211_policy);
9845 if (err)
9846 goto out;
9847
ad2b26ab 9848 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9849 err = PTR_ERR_OR_ZERO(trig->nd_config);
9850 if (err)
9851 trig->nd_config = NULL;
9852
9853out:
9854 kfree(tb);
9855 return err;
9856}
9857
ff1b6e69
JB		 9858static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9859{
9860 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9861 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9862 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9863 struct cfg80211_wowlan *ntrig;
964dc9e2 9864 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9865 int err, i;
6abb9cb9 9866 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 9867 bool regular = false;
ff1b6e69 9868
964dc9e2 9869 if (!wowlan)
ff1b6e69
JB		 9870 return -EOPNOTSUPP;
9871
ae33bd81
JB		 9872 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9873 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9874 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9875 goto set_wakeup;
9876 }
ff1b6e69
JB		 9877
9878 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9879 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9880 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9881 nl80211_wowlan_policy);
9882 if (err)
9883 return err;
9884
9885 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9886 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9887 return -EINVAL;
9888 new_triggers.any = true;
9889 }
9890
9891 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9892 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9893 return -EINVAL;
9894 new_triggers.disconnect = true;
98fc4386 9895 regular = true;
ff1b6e69
JB		 9896 }
9897
9898 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9899 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9900 return -EINVAL;
9901 new_triggers.magic_pkt = true;
98fc4386 9902 regular = true;
ff1b6e69
JB		 9903 }
9904
77dbbb13
JB		 9905 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9906 return -EINVAL;
9907
9908 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9909 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9910 return -EINVAL;
9911 new_triggers.gtk_rekey_failure = true;
98fc4386 9912 regular = true;
77dbbb13
JB		 9913 }
9914
9915 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9916 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9917 return -EINVAL;
9918 new_triggers.eap_identity_req = true;
98fc4386 9919 regular = true;
77dbbb13
JB		 9920 }
9921
9922 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9923 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9924 return -EINVAL;
9925 new_triggers.four_way_handshake = true;
98fc4386 9926 regular = true;
77dbbb13
JB		 9927 }
9928
9929 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9930 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9931 return -EINVAL;
9932 new_triggers.rfkill_release = true;
98fc4386 9933 regular = true;
77dbbb13
JB		 9934 }
9935
ff1b6e69
JB		 9936 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9937 struct nlattr *pat;
9938 int n_patterns = 0;
bb92d199 9939 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9940 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 9941
98fc4386
JB		 9942 regular = true;
9943
ff1b6e69
JB		 9944 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9945 rem)
9946 n_patterns++;
9947 if (n_patterns > wowlan->n_patterns)
9948 return -EINVAL;
9949
9950 new_triggers.patterns = kcalloc(n_patterns,
9951 sizeof(new_triggers.patterns[0]),
9952 GFP_KERNEL);
9953 if (!new_triggers.patterns)
9954 return -ENOMEM;
9955
9956 new_triggers.n_patterns = n_patterns;
9957 i = 0;
9958
9959 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9960 rem) {
922bd80f
JB		 9961 u8 *mask_pat;
9962
50ac6607
AK		 9963 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9964 nla_len(pat), NULL);
ff1b6e69 9965 err = -EINVAL;
50ac6607
AK		 9966 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9967 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9968 goto error;
50ac6607 9969 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9970 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9971 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9972 goto error;
9973 if (pat_len > wowlan->pattern_max_len ||
9974 pat_len < wowlan->pattern_min_len)
9975 goto error;
9976
50ac6607 9977 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9978 pkt_offset = 0;
9979 else
9980 pkt_offset = nla_get_u32(
50ac6607 9981 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9982 if (pkt_offset > wowlan->max_pkt_offset)
9983 goto error;
9984 new_triggers.patterns[i].pkt_offset = pkt_offset;
9985
922bd80f
JB		 9986 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9987 if (!mask_pat) {
ff1b6e69
JB		 9988 err = -ENOMEM;
9989 goto error;
9990 }
922bd80f
JB		 9991 new_triggers.patterns[i].mask = mask_pat;
9992 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9993 mask_len);
922bd80f
JB		 9994 mask_pat += mask_len;
9995 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9996 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9997 memcpy(mask_pat,
50ac6607 9998 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9999 pat_len);
10000 i++;
10001 }
10002 }
10003
2a0e047e 10004 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 10005 regular = true;
2a0e047e
JB		 10006 err = nl80211_parse_wowlan_tcp(
10007 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
10008 &new_triggers);
10009 if (err)
10010 goto error;
10011 }
10012
8cd4d456 10013 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 10014 regular = true;
8cd4d456
LC		 10015 err = nl80211_parse_wowlan_nd(
10016 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
10017 &new_triggers);
10018 if (err)
10019 goto error;
10020 }
10021
98fc4386
JB		 10022 /* The 'any' trigger means the device continues operating more or less
10023 * as in its normal operation mode and wakes up the host on most of the
10024 * normal interrupts (like packet RX, ...)
10025 * It therefore makes little sense to combine with the more constrained
10026 * wakeup trigger modes.
10027 */
10028 if (new_triggers.any && regular) {
10029 err = -EINVAL;
10030 goto error;
10031 }
10032
ae33bd81
JB		 10033 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
10034 if (!ntrig) {
10035 err = -ENOMEM;
10036 goto error;
ff1b6e69 10037 }
ae33bd81 10038 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 10039 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 10040
ae33bd81 10041 set_wakeup:
6abb9cb9
JB		 10042 if (rdev->ops->set_wakeup &&
10043 prev_enabled != !!rdev->wiphy.wowlan_config)
10044 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 10045
ff1b6e69
JB		 10046 return 0;
10047 error:
10048 for (i = 0; i < new_triggers.n_patterns; i++)
10049 kfree(new_triggers.patterns[i].mask);
10050 kfree(new_triggers.patterns);
2a0e047e
JB		 10051 if (new_triggers.tcp && new_triggers.tcp->sock)
10052 sock_release(new_triggers.tcp->sock);
10053 kfree(new_triggers.tcp);
e5dbe070 10054 kfree(new_triggers.nd_config);
ff1b6e69
JB		 10055 return err;
10056}
dfb89c56 10057#endif
ff1b6e69 10058
be29b99a
AK		 10059static int nl80211_send_coalesce_rules(struct sk_buff *msg,
10060 struct cfg80211_registered_device *rdev)
10061{
10062 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
10063 int i, j, pat_len;
10064 struct cfg80211_coalesce_rules *rule;
10065
10066 if (!rdev->coalesce->n_rules)
10067 return 0;
10068
10069 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
10070 if (!nl_rules)
10071 return -ENOBUFS;
10072
10073 for (i = 0; i < rdev->coalesce->n_rules; i++) {
10074 nl_rule = nla_nest_start(msg, i + 1);
10075 if (!nl_rule)
10076 return -ENOBUFS;
10077
10078 rule = &rdev->coalesce->rules[i];
10079 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
10080 rule->delay))
10081 return -ENOBUFS;
10082
10083 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
10084 rule->condition))
10085 return -ENOBUFS;
10086
10087 nl_pats = nla_nest_start(msg,
10088 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
10089 if (!nl_pats)
10090 return -ENOBUFS;
10091
10092 for (j = 0; j < rule->n_patterns; j++) {
10093 nl_pat = nla_nest_start(msg, j + 1);
10094 if (!nl_pat)
10095 return -ENOBUFS;
10096 pat_len = rule->patterns[j].pattern_len;
10097 if (nla_put(msg, NL80211_PKTPAT_MASK,
10098 DIV_ROUND_UP(pat_len, 8),
10099 rule->patterns[j].mask) ||
10100 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10101 rule->patterns[j].pattern) ||
10102 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10103 rule->patterns[j].pkt_offset))
10104 return -ENOBUFS;
10105 nla_nest_end(msg, nl_pat);
10106 }
10107 nla_nest_end(msg, nl_pats);
10108 nla_nest_end(msg, nl_rule);
10109 }
10110 nla_nest_end(msg, nl_rules);
10111
10112 return 0;
10113}
10114
10115static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
10116{
10117 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10118 struct sk_buff *msg;
10119 void *hdr;
10120
10121 if (!rdev->wiphy.coalesce)
10122 return -EOPNOTSUPP;
10123
10124 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10125 if (!msg)
10126 return -ENOMEM;
10127
10128 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10129 NL80211_CMD_GET_COALESCE);
10130 if (!hdr)
10131 goto nla_put_failure;
10132
10133 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
10134 goto nla_put_failure;
10135
10136 genlmsg_end(msg, hdr);
10137 return genlmsg_reply(msg, info);
10138
10139nla_put_failure:
10140 nlmsg_free(msg);
10141 return -ENOBUFS;
10142}
10143
10144void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
10145{
10146 struct cfg80211_coalesce *coalesce = rdev->coalesce;
10147 int i, j;
10148 struct cfg80211_coalesce_rules *rule;
10149
10150 if (!coalesce)
10151 return;
10152
10153 for (i = 0; i < coalesce->n_rules; i++) {
10154 rule = &coalesce->rules[i];
10155 for (j = 0; j < rule->n_patterns; j++)
10156 kfree(rule->patterns[j].mask);
10157 kfree(rule->patterns);
10158 }
10159 kfree(coalesce->rules);
10160 kfree(coalesce);
10161 rdev->coalesce = NULL;
10162}
10163
10164static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10165 struct nlattr *rule,
10166 struct cfg80211_coalesce_rules *new_rule)
10167{
10168 int err, i;
10169 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10170 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10171 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10172 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10173
10174 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
10175 nla_len(rule), nl80211_coalesce_policy);
10176 if (err)
10177 return err;
10178
10179 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10180 new_rule->delay =
10181 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10182 if (new_rule->delay > coalesce->max_delay)
10183 return -EINVAL;
10184
10185 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10186 new_rule->condition =
10187 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10188 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10189 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10190 return -EINVAL;
10191
10192 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10193 return -EINVAL;
10194
10195 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10196 rem)
10197 n_patterns++;
10198 if (n_patterns > coalesce->n_patterns)
10199 return -EINVAL;
10200
10201 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10202 GFP_KERNEL);
10203 if (!new_rule->patterns)
10204 return -ENOMEM;
10205
10206 new_rule->n_patterns = n_patterns;
10207 i = 0;
10208
10209 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10210 rem) {
922bd80f
JB		 10211 u8 *mask_pat;
10212
be29b99a
AK		 10213 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
10214 nla_len(pat), NULL);
10215 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10216 !pat_tb[NL80211_PKTPAT_PATTERN])
10217 return -EINVAL;
10218 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10219 mask_len = DIV_ROUND_UP(pat_len, 8);
10220 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10221 return -EINVAL;
10222 if (pat_len > coalesce->pattern_max_len ||
10223 pat_len < coalesce->pattern_min_len)
10224 return -EINVAL;
10225
10226 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10227 pkt_offset = 0;
10228 else
10229 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10230 if (pkt_offset > coalesce->max_pkt_offset)
10231 return -EINVAL;
10232 new_rule->patterns[i].pkt_offset = pkt_offset;
10233
922bd80f
JB		 10234 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10235 if (!mask_pat)
be29b99a 10236 return -ENOMEM;
922bd80f
JB		 10237
10238 new_rule->patterns[i].mask = mask_pat;
10239 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10240 mask_len);
10241
10242 mask_pat += mask_len;
10243 new_rule->patterns[i].pattern = mask_pat;
be29b99a 10244 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 10245 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10246 pat_len);
be29b99a
AK		 10247 i++;
10248 }
10249
10250 return 0;
10251}
10252
10253static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10254{
10255 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10256 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10257 struct cfg80211_coalesce new_coalesce = {};
10258 struct cfg80211_coalesce *n_coalesce;
10259 int err, rem_rule, n_rules = 0, i, j;
10260 struct nlattr *rule;
10261 struct cfg80211_coalesce_rules *tmp_rule;
10262
10263 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10264 return -EOPNOTSUPP;
10265
10266 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10267 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 10268 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 10269 return 0;
10270 }
10271
10272 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10273 rem_rule)
10274 n_rules++;
10275 if (n_rules > coalesce->n_rules)
10276 return -EINVAL;
10277
10278 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10279 GFP_KERNEL);
10280 if (!new_coalesce.rules)
10281 return -ENOMEM;
10282
10283 new_coalesce.n_rules = n_rules;
10284 i = 0;
10285
10286 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10287 rem_rule) {
10288 err = nl80211_parse_coalesce_rule(rdev, rule,
10289 &new_coalesce.rules[i]);
10290 if (err)
10291 goto error;
10292
10293 i++;
10294 }
10295
a1056b1b 10296 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 10297 if (err)
10298 goto error;
10299
10300 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10301 if (!n_coalesce) {
10302 err = -ENOMEM;
10303 goto error;
10304 }
10305 cfg80211_rdev_free_coalesce(rdev);
10306 rdev->coalesce = n_coalesce;
10307
10308 return 0;
10309error:
10310 for (i = 0; i < new_coalesce.n_rules; i++) {
10311 tmp_rule = &new_coalesce.rules[i];
10312 for (j = 0; j < tmp_rule->n_patterns; j++)
10313 kfree(tmp_rule->patterns[j].mask);
10314 kfree(tmp_rule->patterns);
10315 }
10316 kfree(new_coalesce.rules);
10317
10318 return err;
10319}
10320
e5497d76
JB		 10321static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10322{
10323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10324 struct net_device *dev = info->user_ptr[1];
10325 struct wireless_dev *wdev = dev->ieee80211_ptr;
10326 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10327 struct cfg80211_gtk_rekey_data rekey_data;
10328 int err;
10329
10330 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10331 return -EINVAL;
10332
10333 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
10334 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
10335 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
10336 nl80211_rekey_policy);
10337 if (err)
10338 return err;
10339
10340 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10341 return -ERANGE;
10342 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10343 return -ERANGE;
10344 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10345 return -ERANGE;
10346
78f686ca
JB		 10347 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10348 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10349 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 10350
10351 wdev_lock(wdev);
10352 if (!wdev->current_bss) {
10353 err = -ENOTCONN;
10354 goto out;
10355 }
10356
10357 if (!rdev->ops->set_rekey_data) {
10358 err = -EOPNOTSUPP;
10359 goto out;
10360 }
10361
e35e4d28 10362 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 10363 out:
10364 wdev_unlock(wdev);
10365 return err;
10366}
10367
28946da7
JB		 10368static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10369 struct genl_info *info)
10370{
10371 struct net_device *dev = info->user_ptr[1];
10372 struct wireless_dev *wdev = dev->ieee80211_ptr;
10373
10374 if (wdev->iftype != NL80211_IFTYPE_AP &&
10375 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10376 return -EINVAL;
10377
15e47304 10378 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 10379 return -EBUSY;
10380
15e47304 10381 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 10382 return 0;
10383}
10384
7f6cf311
JB		 10385static int nl80211_probe_client(struct sk_buff *skb,
10386 struct genl_info *info)
10387{
10388 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10389 struct net_device *dev = info->user_ptr[1];
10390 struct wireless_dev *wdev = dev->ieee80211_ptr;
10391 struct sk_buff *msg;
10392 void *hdr;
10393 const u8 *addr;
10394 u64 cookie;
10395 int err;
10396
10397 if (wdev->iftype != NL80211_IFTYPE_AP &&
10398 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10399 return -EOPNOTSUPP;
10400
10401 if (!info->attrs[NL80211_ATTR_MAC])
10402 return -EINVAL;
10403
10404 if (!rdev->ops->probe_client)
10405 return -EOPNOTSUPP;
10406
10407 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10408 if (!msg)
10409 return -ENOMEM;
10410
15e47304 10411 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 10412 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 10413 if (!hdr) {
10414 err = -ENOBUFS;
7f6cf311
JB		 10415 goto free_msg;
10416 }
10417
10418 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10419
e35e4d28 10420 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 10421 if (err)
10422 goto free_msg;
10423
2dad624e
ND		 10424 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10425 NL80211_ATTR_PAD))
9360ffd1 10426 goto nla_put_failure;
7f6cf311
JB		 10427
10428 genlmsg_end(msg, hdr);
10429
10430 return genlmsg_reply(msg, info);
10431
10432 nla_put_failure:
10433 err = -ENOBUFS;
10434 free_msg:
10435 nlmsg_free(msg);
10436 return err;
10437}
10438
5e760230
JB		 10439static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10440{
10441 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 10442 struct cfg80211_beacon_registration *reg, *nreg;
10443 int rv;
5e760230
JB		 10444
10445 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10446 return -EOPNOTSUPP;
10447
37c73b5f
BG		 10448 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10449 if (!nreg)
10450 return -ENOMEM;
10451
10452 /* First, check if already registered. */
10453 spin_lock_bh(&rdev->beacon_registrations_lock);
10454 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10455 if (reg->nlportid == info->snd_portid) {
10456 rv = -EALREADY;
10457 goto out_err;
10458 }
10459 }
10460 /* Add it to the list */
10461 nreg->nlportid = info->snd_portid;
10462 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 10463
37c73b5f 10464 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10465
10466 return 0;
37c73b5f
BG		 10467out_err:
10468 spin_unlock_bh(&rdev->beacon_registrations_lock);
10469 kfree(nreg);
10470 return rv;
5e760230
JB		 10471}
10472
98104fde
JB		 10473static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10474{
10475 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10476 struct wireless_dev *wdev = info->user_ptr[1];
10477 int err;
10478
10479 if (!rdev->ops->start_p2p_device)
10480 return -EOPNOTSUPP;
10481
10482 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10483 return -EOPNOTSUPP;
10484
10485 if (wdev->p2p_started)
10486 return 0;
10487
b6a55015
LC		 10488 if (rfkill_blocked(rdev->rfkill))
10489 return -ERFKILL;
98104fde 10490
eeb126e9 10491 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 10492 if (err)
10493 return err;
10494
10495 wdev->p2p_started = true;
98104fde 10496 rdev->opencount++;
98104fde
JB		 10497
10498 return 0;
10499}
10500
10501static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10502{
10503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10504 struct wireless_dev *wdev = info->user_ptr[1];
10505
10506 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10507 return -EOPNOTSUPP;
10508
10509 if (!rdev->ops->stop_p2p_device)
10510 return -EOPNOTSUPP;
10511
f9f47529 10512 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 10513
10514 return 0;
10515}
10516
cb3b7d87
AB		 10517static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
10518{
10519 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10520 struct wireless_dev *wdev = info->user_ptr[1];
10521 struct cfg80211_nan_conf conf = {};
10522 int err;
10523
10524 if (wdev->iftype != NL80211_IFTYPE_NAN)
10525 return -EOPNOTSUPP;
10526
10527 if (wdev->nan_started)
10528 return -EEXIST;
10529
10530 if (rfkill_blocked(rdev->rfkill))
10531 return -ERFKILL;
10532
10533 if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
10534 return -EINVAL;
10535
10536 if (!info->attrs[NL80211_ATTR_NAN_DUAL])
10537 return -EINVAL;
10538
10539 conf.master_pref =
10540 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
10541 if (!conf.master_pref)
10542 return -EINVAL;
10543
10544 conf.dual = nla_get_u8(info->attrs[NL80211_ATTR_NAN_DUAL]);
10545
10546 err = rdev_start_nan(rdev, wdev, &conf);
10547 if (err)
10548 return err;
10549
10550 wdev->nan_started = true;
10551 rdev->opencount++;
10552
10553 return 0;
10554}
10555
10556static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
10557{
10558 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10559 struct wireless_dev *wdev = info->user_ptr[1];
10560
10561 if (wdev->iftype != NL80211_IFTYPE_NAN)
10562 return -EOPNOTSUPP;
10563
10564 cfg80211_stop_nan(rdev, wdev);
10565
10566 return 0;
10567}
10568
3713b4e3
JB		 10569static int nl80211_get_protocol_features(struct sk_buff *skb,
10570 struct genl_info *info)
10571{
10572 void *hdr;
10573 struct sk_buff *msg;
10574
10575 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10576 if (!msg)
10577 return -ENOMEM;
10578
10579 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10580 NL80211_CMD_GET_PROTOCOL_FEATURES);
10581 if (!hdr)
10582 goto nla_put_failure;
10583
10584 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
10585 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
10586 goto nla_put_failure;
10587
10588 genlmsg_end(msg, hdr);
10589 return genlmsg_reply(msg, info);
10590
10591 nla_put_failure:
10592 kfree_skb(msg);
10593 return -ENOBUFS;
10594}
10595
355199e0
JM		 10596static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
10597{
10598 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10599 struct cfg80211_update_ft_ies_params ft_params;
10600 struct net_device *dev = info->user_ptr[1];
10601
10602 if (!rdev->ops->update_ft_ies)
10603 return -EOPNOTSUPP;
10604
10605 if (!info->attrs[NL80211_ATTR_MDID] ||
10606 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
10607 return -EINVAL;
10608
10609 memset(&ft_params, 0, sizeof(ft_params));
10610 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10611 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10612 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10613
10614 return rdev_update_ft_ies(rdev, dev, &ft_params);
10615}
10616
5de17984
AS		 10617static int nl80211_crit_protocol_start(struct sk_buff *skb,
10618 struct genl_info *info)
10619{
10620 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10621 struct wireless_dev *wdev = info->user_ptr[1];
10622 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10623 u16 duration;
10624 int ret;
10625
10626 if (!rdev->ops->crit_proto_start)
10627 return -EOPNOTSUPP;
10628
10629 if (WARN_ON(!rdev->ops->crit_proto_stop))
10630 return -EINVAL;
10631
10632 if (rdev->crit_proto_nlportid)
10633 return -EBUSY;
10634
10635 /* determine protocol if provided */
10636 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10637 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10638
10639 if (proto >= NUM_NL80211_CRIT_PROTO)
10640 return -EINVAL;
10641
10642 /* timeout must be provided */
10643 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10644 return -EINVAL;
10645
10646 duration =
10647 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10648
10649 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10650 return -ERANGE;
10651
10652 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10653 if (!ret)
10654 rdev->crit_proto_nlportid = info->snd_portid;
10655
10656 return ret;
10657}
10658
10659static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10660 struct genl_info *info)
10661{
10662 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10663 struct wireless_dev *wdev = info->user_ptr[1];
10664
10665 if (!rdev->ops->crit_proto_stop)
10666 return -EOPNOTSUPP;
10667
10668 if (rdev->crit_proto_nlportid) {
10669 rdev->crit_proto_nlportid = 0;
10670 rdev_crit_proto_stop(rdev, wdev);
10671 }
10672 return 0;
10673}
10674
ad7e718c
JB		 10675static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10676{
10677 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10678 struct wireless_dev *wdev =
10679 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10680 int i, err;
10681 u32 vid, subcmd;
10682
10683 if (!rdev->wiphy.vendor_commands)
10684 return -EOPNOTSUPP;
10685
10686 if (IS_ERR(wdev)) {
10687 err = PTR_ERR(wdev);
10688 if (err != -EINVAL)
10689 return err;
10690 wdev = NULL;
10691 } else if (wdev->wiphy != &rdev->wiphy) {
10692 return -EINVAL;
10693 }
10694
10695 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10696 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10697 return -EINVAL;
10698
10699 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10700 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10701 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10702 const struct wiphy_vendor_command *vcmd;
10703 void *data = NULL;
10704 int len = 0;
10705
10706 vcmd = &rdev->wiphy.vendor_commands[i];
10707
10708 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10709 continue;
10710
10711 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10712 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10713 if (!wdev)
10714 return -EINVAL;
10715 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10716 !wdev->netdev)
10717 return -EINVAL;
10718
10719 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10720 if (wdev->netdev &&
10721 !netif_running(wdev->netdev))
10722 return -ENETDOWN;
10723 if (!wdev->netdev && !wdev->p2p_started)
10724 return -ENETDOWN;
10725 }
7bdbe400
JB		 10726
10727 if (!vcmd->doit)
10728 return -EOPNOTSUPP;
ad7e718c
JB		 10729 } else {
10730 wdev = NULL;
10731 }
10732
10733 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10734 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10735 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10736 }
10737
10738 rdev->cur_cmd_info = info;
10739 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10740 data, len);
10741 rdev->cur_cmd_info = NULL;
10742 return err;
10743 }
10744
10745 return -EOPNOTSUPP;
10746}
10747
7bdbe400
JB		 10748static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10749 struct netlink_callback *cb,
10750 struct cfg80211_registered_device **rdev,
10751 struct wireless_dev **wdev)
10752{
10753 u32 vid, subcmd;
10754 unsigned int i;
10755 int vcmd_idx = -1;
10756 int err;
10757 void *data = NULL;
10758 unsigned int data_len = 0;
10759
10760 rtnl_lock();
10761
10762 if (cb->args[0]) {
10763 /* subtract the 1 again here */
10764 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10765 struct wireless_dev *tmp;
10766
10767 if (!wiphy) {
10768 err = -ENODEV;
10769 goto out_unlock;
10770 }
10771 *rdev = wiphy_to_rdev(wiphy);
10772 *wdev = NULL;
10773
10774 if (cb->args[1]) {
53873f13 10775 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
7bdbe400
JB		 10776 if (tmp->identifier == cb->args[1] - 1) {
10777 *wdev = tmp;
10778 break;
10779 }
10780 }
10781 }
10782
10783 /* keep rtnl locked in successful case */
10784 return 0;
10785 }
10786
10787 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10788 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10789 nl80211_policy);
10790 if (err)
10791 goto out_unlock;
10792
10793 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10794 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10795 err = -EINVAL;
10796 goto out_unlock;
10797 }
10798
10799 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10800 nl80211_fam.attrbuf);
10801 if (IS_ERR(*wdev))
10802 *wdev = NULL;
10803
10804 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10805 nl80211_fam.attrbuf);
10806 if (IS_ERR(*rdev)) {
10807 err = PTR_ERR(*rdev);
10808 goto out_unlock;
10809 }
10810
10811 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10812 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10813
10814 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10815 const struct wiphy_vendor_command *vcmd;
10816
10817 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10818
10819 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10820 continue;
10821
10822 if (!vcmd->dumpit) {
10823 err = -EOPNOTSUPP;
10824 goto out_unlock;
10825 }
10826
10827 vcmd_idx = i;
10828 break;
10829 }
10830
10831 if (vcmd_idx < 0) {
10832 err = -EOPNOTSUPP;
10833 goto out_unlock;
10834 }
10835
10836 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10837 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10838 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10839 }
10840
10841 /* 0 is the first index - add 1 to parse only once */
10842 cb->args[0] = (*rdev)->wiphy_idx + 1;
10843 /* add 1 to know if it was NULL */
10844 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10845 cb->args[2] = vcmd_idx;
10846 cb->args[3] = (unsigned long)data;
10847 cb->args[4] = data_len;
10848
10849 /* keep rtnl locked in successful case */
10850 return 0;
10851 out_unlock:
10852 rtnl_unlock();
10853 return err;
10854}
10855
10856static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10857 struct netlink_callback *cb)
10858{
10859 struct cfg80211_registered_device *rdev;
10860 struct wireless_dev *wdev;
10861 unsigned int vcmd_idx;
10862 const struct wiphy_vendor_command *vcmd;
10863 void *data;
10864 int data_len;
10865 int err;
10866 struct nlattr *vendor_data;
10867
10868 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10869 if (err)
10870 return err;
10871
10872 vcmd_idx = cb->args[2];
10873 data = (void *)cb->args[3];
10874 data_len = cb->args[4];
10875 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10876
10877 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10878 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10879 if (!wdev)
10880 return -EINVAL;
10881 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10882 !wdev->netdev)
10883 return -EINVAL;
10884
10885 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10886 if (wdev->netdev &&
10887 !netif_running(wdev->netdev))
10888 return -ENETDOWN;
10889 if (!wdev->netdev && !wdev->p2p_started)
10890 return -ENETDOWN;
10891 }
10892 }
10893
10894 while (1) {
10895 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10896 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10897 NL80211_CMD_VENDOR);
10898 if (!hdr)
10899 break;
10900
10901 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 10902 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
10903 wdev_id(wdev),
10904 NL80211_ATTR_PAD))) {
7bdbe400
JB		 10905 genlmsg_cancel(skb, hdr);
10906 break;
10907 }
10908
10909 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10910 if (!vendor_data) {
10911 genlmsg_cancel(skb, hdr);
10912 break;
10913 }
10914
10915 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10916 (unsigned long *)&cb->args[5]);
10917 nla_nest_end(skb, vendor_data);
10918
10919 if (err == -ENOBUFS || err == -ENOENT) {
10920 genlmsg_cancel(skb, hdr);
10921 break;
10922 } else if (err) {
10923 genlmsg_cancel(skb, hdr);
10924 goto out;
10925 }
10926
10927 genlmsg_end(skb, hdr);
10928 }
10929
10930 err = skb->len;
10931 out:
10932 rtnl_unlock();
10933 return err;
10934}
10935
ad7e718c
JB		 10936struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10937 enum nl80211_commands cmd,
10938 enum nl80211_attrs attr,
10939 int approxlen)
10940{
f26cbf40 10941 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 10942
10943 if (WARN_ON(!rdev->cur_cmd_info))
10944 return NULL;
10945
6c09e791 10946 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 10947 rdev->cur_cmd_info->snd_portid,
10948 rdev->cur_cmd_info->snd_seq,
567ffc35 10949 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 10950}
10951EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10952
10953int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10954{
10955 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10956 void *hdr = ((void **)skb->cb)[1];
10957 struct nlattr *data = ((void **)skb->cb)[2];
10958
bd8c78e7
JB		 10959 /* clear CB data for netlink core to own from now on */
10960 memset(skb->cb, 0, sizeof(skb->cb));
10961
ad7e718c
JB		 10962 if (WARN_ON(!rdev->cur_cmd_info)) {
10963 kfree_skb(skb);
10964 return -EINVAL;
10965 }
10966
10967 nla_nest_end(skb, data);
10968 genlmsg_end(skb, hdr);
10969 return genlmsg_reply(skb, rdev->cur_cmd_info);
10970}
10971EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10972
fa9ffc74
KP		 10973static int nl80211_set_qos_map(struct sk_buff *skb,
10974 struct genl_info *info)
10975{
10976 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10977 struct cfg80211_qos_map *qos_map = NULL;
10978 struct net_device *dev = info->user_ptr[1];
10979 u8 *pos, len, num_des, des_len, des;
10980 int ret;
10981
10982 if (!rdev->ops->set_qos_map)
10983 return -EOPNOTSUPP;
10984
10985 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10986 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10987 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10988
10989 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10990 len > IEEE80211_QOS_MAP_LEN_MAX)
10991 return -EINVAL;
10992
10993 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10994 if (!qos_map)
10995 return -ENOMEM;
10996
10997 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10998 if (num_des) {
10999 des_len = num_des *
11000 sizeof(struct cfg80211_dscp_exception);
11001 memcpy(qos_map->dscp_exception, pos, des_len);
11002 qos_map->num_des = num_des;
11003 for (des = 0; des < num_des; des++) {
11004 if (qos_map->dscp_exception[des].up > 7) {
11005 kfree(qos_map);
11006 return -EINVAL;
11007 }
11008 }
11009 pos += des_len;
11010 }
11011 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
11012 }
11013
11014 wdev_lock(dev->ieee80211_ptr);
11015 ret = nl80211_key_allowed(dev->ieee80211_ptr);
11016 if (!ret)
11017 ret = rdev_set_qos_map(rdev, dev, qos_map);
11018 wdev_unlock(dev->ieee80211_ptr);
11019
11020 kfree(qos_map);
11021 return ret;
11022}
11023
960d01ac
JB		 11024static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
11025{
11026 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11027 struct net_device *dev = info->user_ptr[1];
11028 struct wireless_dev *wdev = dev->ieee80211_ptr;
11029 const u8 *peer;
11030 u8 tsid, up;
11031 u16 admitted_time = 0;
11032 int err;
11033
723e73ac 11034 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 11035 return -EOPNOTSUPP;
11036
11037 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
11038 !info->attrs[NL80211_ATTR_USER_PRIO])
11039 return -EINVAL;
11040
11041 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
11042 if (tsid >= IEEE80211_NUM_TIDS)
11043 return -EINVAL;
11044
11045 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
11046 if (up >= IEEE80211_NUM_UPS)
11047 return -EINVAL;
11048
11049 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 11050 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 11051 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 11052 * need more attributes for that (e.g. BA session requirement);
11053 * change the WMM adminssion test above to allow both then
960d01ac
JB		 11054 */
11055 return -EINVAL;
11056 }
11057
11058 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11059
11060 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
11061 admitted_time =
11062 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
11063 if (!admitted_time)
11064 return -EINVAL;
11065 }
11066
11067 wdev_lock(wdev);
11068 switch (wdev->iftype) {
11069 case NL80211_IFTYPE_STATION:
11070 case NL80211_IFTYPE_P2P_CLIENT:
11071 if (wdev->current_bss)
11072 break;
11073 err = -ENOTCONN;
11074 goto out;
11075 default:
11076 err = -EOPNOTSUPP;
11077 goto out;
11078 }
11079
11080 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
11081
11082 out:
11083 wdev_unlock(wdev);
11084 return err;
11085}
11086
11087static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
11088{
11089 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11090 struct net_device *dev = info->user_ptr[1];
11091 struct wireless_dev *wdev = dev->ieee80211_ptr;
11092 const u8 *peer;
11093 u8 tsid;
11094 int err;
11095
11096 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
11097 return -EINVAL;
11098
11099 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
11100 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11101
11102 wdev_lock(wdev);
11103 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
11104 wdev_unlock(wdev);
11105
11106 return err;
11107}
11108
1057d35e
AN		 11109static int nl80211_tdls_channel_switch(struct sk_buff *skb,
11110 struct genl_info *info)
11111{
11112 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11113 struct net_device *dev = info->user_ptr[1];
11114 struct wireless_dev *wdev = dev->ieee80211_ptr;
11115 struct cfg80211_chan_def chandef = {};
11116 const u8 *addr;
11117 u8 oper_class;
11118 int err;
11119
11120 if (!rdev->ops->tdls_channel_switch ||
11121 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
11122 return -EOPNOTSUPP;
11123
11124 switch (dev->ieee80211_ptr->iftype) {
11125 case NL80211_IFTYPE_STATION:
11126 case NL80211_IFTYPE_P2P_CLIENT:
11127 break;
11128 default:
11129 return -EOPNOTSUPP;
11130 }
11131
11132 if (!info->attrs[NL80211_ATTR_MAC] ||
11133 !info->attrs[NL80211_ATTR_OPER_CLASS])
11134 return -EINVAL;
11135
11136 err = nl80211_parse_chandef(rdev, info, &chandef);
11137 if (err)
11138 return err;
11139
11140 /*
11141 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
11142 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
11143 * specification is not defined for them.
11144 */
57fbcce3 11145 if (chandef.chan->band == NL80211_BAND_2GHZ &&
1057d35e
AN		 11146 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
11147 chandef.width != NL80211_CHAN_WIDTH_20)
11148 return -EINVAL;
11149
11150 /* we will be active on the TDLS link */
923b352f
AN		 11151 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
11152 wdev->iftype))
1057d35e
AN		 11153 return -EINVAL;
11154
11155 /* don't allow switching to DFS channels */
11156 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
11157 return -EINVAL;
11158
11159 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11160 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
11161
11162 wdev_lock(wdev);
11163 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
11164 wdev_unlock(wdev);
11165
11166 return err;
11167}
11168
11169static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
11170 struct genl_info *info)
11171{
11172 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11173 struct net_device *dev = info->user_ptr[1];
11174 struct wireless_dev *wdev = dev->ieee80211_ptr;
11175 const u8 *addr;
11176
11177 if (!rdev->ops->tdls_channel_switch ||
11178 !rdev->ops->tdls_cancel_channel_switch ||
11179 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
11180 return -EOPNOTSUPP;
11181
11182 switch (dev->ieee80211_ptr->iftype) {
11183 case NL80211_IFTYPE_STATION:
11184 case NL80211_IFTYPE_P2P_CLIENT:
11185 break;
11186 default:
11187 return -EOPNOTSUPP;
11188 }
11189
11190 if (!info->attrs[NL80211_ATTR_MAC])
11191 return -EINVAL;
11192
11193 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11194
11195 wdev_lock(wdev);
11196 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
11197 wdev_unlock(wdev);
11198
11199 return 0;
11200}
11201
4c476991
JB		 11202#define NL80211_FLAG_NEED_WIPHY 0x01
11203#define NL80211_FLAG_NEED_NETDEV 0x02
11204#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 11205#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
11206#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
11207 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 11208#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 11209/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 11210#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
11211 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 11212#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 11213
f84f771d 11214static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 11215 struct genl_info *info)
11216{
11217 struct cfg80211_registered_device *rdev;
89a54e48 11218 struct wireless_dev *wdev;
4c476991 11219 struct net_device *dev;
4c476991
JB		 11220 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
11221
11222 if (rtnl)
11223 rtnl_lock();
11224
11225 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 11226 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 11227 if (IS_ERR(rdev)) {
11228 if (rtnl)
11229 rtnl_unlock();
11230 return PTR_ERR(rdev);
11231 }
11232 info->user_ptr[0] = rdev;
1bf614ef
JB		 11233 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
11234 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 11235 ASSERT_RTNL();
11236
89a54e48
JB		 11237 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
11238 info->attrs);
11239 if (IS_ERR(wdev)) {
4c476991
JB		 11240 if (rtnl)
11241 rtnl_unlock();
89a54e48 11242 return PTR_ERR(wdev);
4c476991 11243 }
89a54e48 11244
89a54e48 11245 dev = wdev->netdev;
f26cbf40 11246 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 11247
1bf614ef
JB		 11248 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
11249 if (!dev) {
1bf614ef
JB		 11250 if (rtnl)
11251 rtnl_unlock();
11252 return -EINVAL;
11253 }
11254
11255 info->user_ptr[1] = dev;
11256 } else {
11257 info->user_ptr[1] = wdev;
41265714 11258 }
1bf614ef
JB		 11259
11260 if (dev) {
11261 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
11262 !netif_running(dev)) {
1bf614ef
JB		 11263 if (rtnl)
11264 rtnl_unlock();
11265 return -ENETDOWN;
11266 }
11267
11268 dev_hold(dev);
98104fde 11269 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
cb3b7d87
AB		 11270 if (wdev->iftype == NL80211_IFTYPE_P2P_DEVICE &&
11271 !wdev->p2p_started) {
11272 if (rtnl)
11273 rtnl_unlock();
11274 return -ENETDOWN;
11275 }
11276 if (wdev->iftype == NL80211_IFTYPE_NAN &&
11277 !wdev->nan_started) {
98104fde
JB		 11278 if (rtnl)
11279 rtnl_unlock();
11280 return -ENETDOWN;
11281 }
41265714 11282 }
89a54e48 11283
4c476991 11284 info->user_ptr[0] = rdev;
4c476991
JB		 11285 }
11286
11287 return 0;
11288}
11289
f84f771d 11290static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 11291 struct genl_info *info)
11292{
1bf614ef
JB		 11293 if (info->user_ptr[1]) {
11294 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
11295 struct wireless_dev *wdev = info->user_ptr[1];
11296
11297 if (wdev->netdev)
11298 dev_put(wdev->netdev);
11299 } else {
11300 dev_put(info->user_ptr[1]);
11301 }
11302 }
5393b917 11303
4c476991
JB		 11304 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
11305 rtnl_unlock();
5393b917
JB		 11306
11307 /* If needed, clear the netlink message payload from the SKB
11308 * as it might contain key data that shouldn't stick around on
11309 * the heap after the SKB is freed. The netlink message header
11310 * is still needed for further processing, so leave it intact.
11311 */
11312 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
11313 struct nlmsghdr *nlh = nlmsg_hdr(skb);
11314
11315 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
11316 }
4c476991
JB		 11317}
11318
4534de83 11319static const struct genl_ops nl80211_ops[] = {
55682965
JB		 11320 {
11321 .cmd = NL80211_CMD_GET_WIPHY,
11322 .doit = nl80211_get_wiphy,
11323 .dumpit = nl80211_dump_wiphy,
86e8cf98 11324 .done = nl80211_dump_wiphy_done,
55682965
JB		 11325 .policy = nl80211_policy,
11326 /* can be retrieved by unprivileged users */
5fe231e8
JB		 11327 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11328 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11329 },
11330 {
11331 .cmd = NL80211_CMD_SET_WIPHY,
11332 .doit = nl80211_set_wiphy,
11333 .policy = nl80211_policy,
5617c6cd 11334 .flags = GENL_UNS_ADMIN_PERM,
4c476991 11335 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 11336 },
11337 {
11338 .cmd = NL80211_CMD_GET_INTERFACE,
11339 .doit = nl80211_get_interface,
11340 .dumpit = nl80211_dump_interface,
11341 .policy = nl80211_policy,
11342 /* can be retrieved by unprivileged users */
5fe231e8
JB		 11343 .internal_flags = NL80211_FLAG_NEED_WDEV |
11344 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11345 },
11346 {
11347 .cmd = NL80211_CMD_SET_INTERFACE,
11348 .doit = nl80211_set_interface,
11349 .policy = nl80211_policy,
5617c6cd 11350 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11351 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11352 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11353 },
11354 {
11355 .cmd = NL80211_CMD_NEW_INTERFACE,
11356 .doit = nl80211_new_interface,
11357 .policy = nl80211_policy,
5617c6cd 11358 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11359 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11360 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11361 },
11362 {
11363 .cmd = NL80211_CMD_DEL_INTERFACE,
11364 .doit = nl80211_del_interface,
11365 .policy = nl80211_policy,
5617c6cd 11366 .flags = GENL_UNS_ADMIN_PERM,
84efbb84 11367 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11368 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11369 },
11370 {
11371 .cmd = NL80211_CMD_GET_KEY,
11372 .doit = nl80211_get_key,
11373 .policy = nl80211_policy,
5617c6cd 11374 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11375 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11376 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11377 },
11378 {
11379 .cmd = NL80211_CMD_SET_KEY,
11380 .doit = nl80211_set_key,
11381 .policy = nl80211_policy,
5617c6cd 11382 .flags = GENL_UNS_ADMIN_PERM,
41265714 11383 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11384 NL80211_FLAG_NEED_RTNL |
11385 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 11386 },
11387 {
11388 .cmd = NL80211_CMD_NEW_KEY,
11389 .doit = nl80211_new_key,
11390 .policy = nl80211_policy,
5617c6cd 11391 .flags = GENL_UNS_ADMIN_PERM,
41265714 11392 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11393 NL80211_FLAG_NEED_RTNL |
11394 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 11395 },
11396 {
11397 .cmd = NL80211_CMD_DEL_KEY,
11398 .doit = nl80211_del_key,
11399 .policy = nl80211_policy,
5617c6cd 11400 .flags = GENL_UNS_ADMIN_PERM,
41265714 11401 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11402 NL80211_FLAG_NEED_RTNL,
55682965 11403 },
ed1b6cc7
JB		 11404 {
11405 .cmd = NL80211_CMD_SET_BEACON,
11406 .policy = nl80211_policy,
5617c6cd 11407 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11408 .doit = nl80211_set_beacon,
2b5f8b0b 11409 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11410 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11411 },
11412 {
8860020e 11413 .cmd = NL80211_CMD_START_AP,
ed1b6cc7 11414 .policy = nl80211_policy,
5617c6cd 11415 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11416 .doit = nl80211_start_ap,
2b5f8b0b 11417 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11418 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11419 },
11420 {
8860020e 11421 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7 11422 .policy = nl80211_policy,
5617c6cd 11423 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11424 .doit = nl80211_stop_ap,
2b5f8b0b 11425 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11426 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 11427 },
5727ef1b
JB		 11428 {
11429 .cmd = NL80211_CMD_GET_STATION,
11430 .doit = nl80211_get_station,
2ec600d6 11431 .dumpit = nl80211_dump_station,
5727ef1b 11432 .policy = nl80211_policy,
4c476991
JB		 11433 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11434 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11435 },
11436 {
11437 .cmd = NL80211_CMD_SET_STATION,
11438 .doit = nl80211_set_station,
11439 .policy = nl80211_policy,
5617c6cd 11440 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11441 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11442 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11443 },
11444 {
11445 .cmd = NL80211_CMD_NEW_STATION,
11446 .doit = nl80211_new_station,
11447 .policy = nl80211_policy,
5617c6cd 11448 .flags = GENL_UNS_ADMIN_PERM,
41265714 11449 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11450 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11451 },
11452 {
11453 .cmd = NL80211_CMD_DEL_STATION,
11454 .doit = nl80211_del_station,
11455 .policy = nl80211_policy,
5617c6cd 11456 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11457 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11458 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11459 },
11460 {
11461 .cmd = NL80211_CMD_GET_MPATH,
11462 .doit = nl80211_get_mpath,
11463 .dumpit = nl80211_dump_mpath,
11464 .policy = nl80211_policy,
5617c6cd 11465 .flags = GENL_UNS_ADMIN_PERM,
41265714 11466 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11467 NL80211_FLAG_NEED_RTNL,
2ec600d6 11468 },
66be7d2b
HR		 11469 {
11470 .cmd = NL80211_CMD_GET_MPP,
11471 .doit = nl80211_get_mpp,
11472 .dumpit = nl80211_dump_mpp,
11473 .policy = nl80211_policy,
5617c6cd 11474 .flags = GENL_UNS_ADMIN_PERM,
66be7d2b
HR		 11475 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11476 NL80211_FLAG_NEED_RTNL,
11477 },
2ec600d6
LCC		 11478 {
11479 .cmd = NL80211_CMD_SET_MPATH,
11480 .doit = nl80211_set_mpath,
11481 .policy = nl80211_policy,
5617c6cd 11482 .flags = GENL_UNS_ADMIN_PERM,
41265714 11483 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11484 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11485 },
11486 {
11487 .cmd = NL80211_CMD_NEW_MPATH,
11488 .doit = nl80211_new_mpath,
11489 .policy = nl80211_policy,
5617c6cd 11490 .flags = GENL_UNS_ADMIN_PERM,
41265714 11491 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11492 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11493 },
11494 {
11495 .cmd = NL80211_CMD_DEL_MPATH,
11496 .doit = nl80211_del_mpath,
11497 .policy = nl80211_policy,
5617c6cd 11498 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11499 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11500 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 11501 },
11502 {
11503 .cmd = NL80211_CMD_SET_BSS,
11504 .doit = nl80211_set_bss,
11505 .policy = nl80211_policy,
5617c6cd 11506 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11507 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11508 NL80211_FLAG_NEED_RTNL,
b2e1b302 11509 },
f130347c
LR		 11510 {
11511 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 11512 .doit = nl80211_get_reg_do,
11513 .dumpit = nl80211_get_reg_dump,
f130347c 11514 .policy = nl80211_policy,
5fe231e8 11515 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 11516 /* can be retrieved by unprivileged users */
11517 },
b6863036 11518#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 11519 {
11520 .cmd = NL80211_CMD_SET_REG,
11521 .doit = nl80211_set_reg,
11522 .policy = nl80211_policy,
11523 .flags = GENL_ADMIN_PERM,
5fe231e8 11524 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 11525 },
b6863036 11526#endif
b2e1b302
LR		 11527 {
11528 .cmd = NL80211_CMD_REQ_SET_REG,
11529 .doit = nl80211_req_set_reg,
11530 .policy = nl80211_policy,
93da9cc1 11531 .flags = GENL_ADMIN_PERM,
11532 },
11533 {
24bdd9f4
JC		 11534 .cmd = NL80211_CMD_GET_MESH_CONFIG,
11535 .doit = nl80211_get_mesh_config,
93da9cc1 11536 .policy = nl80211_policy,
11537 /* can be retrieved by unprivileged users */
2b5f8b0b 11538 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11539 NL80211_FLAG_NEED_RTNL,
93da9cc1 11540 },
11541 {
24bdd9f4
JC		 11542 .cmd = NL80211_CMD_SET_MESH_CONFIG,
11543 .doit = nl80211_update_mesh_config,
93da9cc1 11544 .policy = nl80211_policy,
5617c6cd 11545 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c 11546 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11547 NL80211_FLAG_NEED_RTNL,
9aed3cc1 11548 },
2a519311
JB		 11549 {
11550 .cmd = NL80211_CMD_TRIGGER_SCAN,
11551 .doit = nl80211_trigger_scan,
11552 .policy = nl80211_policy,
5617c6cd 11553 .flags = GENL_UNS_ADMIN_PERM,
fd014284 11554 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11555 NL80211_FLAG_NEED_RTNL,
2a519311 11556 },
91d3ab46
VK		 11557 {
11558 .cmd = NL80211_CMD_ABORT_SCAN,
11559 .doit = nl80211_abort_scan,
11560 .policy = nl80211_policy,
5617c6cd 11561 .flags = GENL_UNS_ADMIN_PERM,
91d3ab46
VK		 11562 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11563 NL80211_FLAG_NEED_RTNL,
11564 },
2a519311
JB		 11565 {
11566 .cmd = NL80211_CMD_GET_SCAN,
11567 .policy = nl80211_policy,
11568 .dumpit = nl80211_dump_scan,
11569 },
807f8a8c
LC		 11570 {
11571 .cmd = NL80211_CMD_START_SCHED_SCAN,
11572 .doit = nl80211_start_sched_scan,
11573 .policy = nl80211_policy,
5617c6cd 11574 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 11575 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11576 NL80211_FLAG_NEED_RTNL,
11577 },
11578 {
11579 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
11580 .doit = nl80211_stop_sched_scan,
11581 .policy = nl80211_policy,
5617c6cd 11582 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 11583 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11584 NL80211_FLAG_NEED_RTNL,
11585 },
636a5d36
JM		 11586 {
11587 .cmd = NL80211_CMD_AUTHENTICATE,
11588 .doit = nl80211_authenticate,
11589 .policy = nl80211_policy,
5617c6cd 11590 .flags = GENL_UNS_ADMIN_PERM,
41265714 11591 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11592 NL80211_FLAG_NEED_RTNL |
11593 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 11594 },
11595 {
11596 .cmd = NL80211_CMD_ASSOCIATE,
11597 .doit = nl80211_associate,
11598 .policy = nl80211_policy,
5617c6cd 11599 .flags = GENL_UNS_ADMIN_PERM,
41265714 11600 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11601 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11602 },
11603 {
11604 .cmd = NL80211_CMD_DEAUTHENTICATE,
11605 .doit = nl80211_deauthenticate,
11606 .policy = nl80211_policy,
5617c6cd 11607 .flags = GENL_UNS_ADMIN_PERM,
41265714 11608 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11609 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11610 },
11611 {
11612 .cmd = NL80211_CMD_DISASSOCIATE,
11613 .doit = nl80211_disassociate,
11614 .policy = nl80211_policy,
5617c6cd 11615 .flags = GENL_UNS_ADMIN_PERM,
41265714 11616 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11617 NL80211_FLAG_NEED_RTNL,
636a5d36 11618 },
04a773ad
JB		 11619 {
11620 .cmd = NL80211_CMD_JOIN_IBSS,
11621 .doit = nl80211_join_ibss,
11622 .policy = nl80211_policy,
5617c6cd 11623 .flags = GENL_UNS_ADMIN_PERM,
41265714 11624 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11625 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 11626 },
11627 {
11628 .cmd = NL80211_CMD_LEAVE_IBSS,
11629 .doit = nl80211_leave_ibss,
11630 .policy = nl80211_policy,
5617c6cd 11631 .flags = GENL_UNS_ADMIN_PERM,
41265714 11632 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11633 NL80211_FLAG_NEED_RTNL,
04a773ad 11634 },
aff89a9b
JB		 11635#ifdef CONFIG_NL80211_TESTMODE
11636 {
11637 .cmd = NL80211_CMD_TESTMODE,
11638 .doit = nl80211_testmode_do,
71063f0e 11639 .dumpit = nl80211_testmode_dump,
aff89a9b 11640 .policy = nl80211_policy,
5617c6cd 11641 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11642 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11643 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 11644 },
11645#endif
b23aa676
SO		 11646 {
11647 .cmd = NL80211_CMD_CONNECT,
11648 .doit = nl80211_connect,
11649 .policy = nl80211_policy,
5617c6cd 11650 .flags = GENL_UNS_ADMIN_PERM,
41265714 11651 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11652 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 11653 },
11654 {
11655 .cmd = NL80211_CMD_DISCONNECT,
11656 .doit = nl80211_disconnect,
11657 .policy = nl80211_policy,
5617c6cd 11658 .flags = GENL_UNS_ADMIN_PERM,
41265714 11659 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11660 NL80211_FLAG_NEED_RTNL,
b23aa676 11661 },
463d0183
JB		 11662 {
11663 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11664 .doit = nl80211_wiphy_netns,
11665 .policy = nl80211_policy,
5617c6cd 11666 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11667 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11668 NL80211_FLAG_NEED_RTNL,
463d0183 11669 },
61fa713c
HS		 11670 {
11671 .cmd = NL80211_CMD_GET_SURVEY,
11672 .policy = nl80211_policy,
11673 .dumpit = nl80211_dump_survey,
11674 },
67fbb16b
SO		 11675 {
11676 .cmd = NL80211_CMD_SET_PMKSA,
11677 .doit = nl80211_setdel_pmksa,
11678 .policy = nl80211_policy,
5617c6cd 11679 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11680 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11681 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11682 },
11683 {
11684 .cmd = NL80211_CMD_DEL_PMKSA,
11685 .doit = nl80211_setdel_pmksa,
11686 .policy = nl80211_policy,
5617c6cd 11687 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11688 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11689 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11690 },
11691 {
11692 .cmd = NL80211_CMD_FLUSH_PMKSA,
11693 .doit = nl80211_flush_pmksa,
11694 .policy = nl80211_policy,
5617c6cd 11695 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11696 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11697 NL80211_FLAG_NEED_RTNL,
67fbb16b 11698 },
9588bbd5
JM		 11699 {
11700 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11701 .doit = nl80211_remain_on_channel,
11702 .policy = nl80211_policy,
5617c6cd 11703 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11704 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11705 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 11706 },
11707 {
11708 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11709 .doit = nl80211_cancel_remain_on_channel,
11710 .policy = nl80211_policy,
5617c6cd 11711 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11712 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11713 NL80211_FLAG_NEED_RTNL,
9588bbd5 11714 },
13ae75b1
JM		 11715 {
11716 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11717 .doit = nl80211_set_tx_bitrate_mask,
11718 .policy = nl80211_policy,
5617c6cd 11719 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11720 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11721 NL80211_FLAG_NEED_RTNL,
13ae75b1 11722 },
026331c4 11723 {
2e161f78
JB		 11724 .cmd = NL80211_CMD_REGISTER_FRAME,
11725 .doit = nl80211_register_mgmt,
026331c4 11726 .policy = nl80211_policy,
5617c6cd 11727 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11728 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11729 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 11730 },
11731 {
2e161f78
JB		 11732 .cmd = NL80211_CMD_FRAME,
11733 .doit = nl80211_tx_mgmt,
026331c4 11734 .policy = nl80211_policy,
5617c6cd 11735 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11736 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 11737 NL80211_FLAG_NEED_RTNL,
11738 },
11739 {
11740 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11741 .doit = nl80211_tx_mgmt_cancel_wait,
11742 .policy = nl80211_policy,
5617c6cd 11743 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11744 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11745 NL80211_FLAG_NEED_RTNL,
026331c4 11746 },
ffb9eb3d
KV		 11747 {
11748 .cmd = NL80211_CMD_SET_POWER_SAVE,
11749 .doit = nl80211_set_power_save,
11750 .policy = nl80211_policy,
5617c6cd 11751 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11752 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11753 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 11754 },
11755 {
11756 .cmd = NL80211_CMD_GET_POWER_SAVE,
11757 .doit = nl80211_get_power_save,
11758 .policy = nl80211_policy,
11759 /* can be retrieved by unprivileged users */
4c476991
JB		 11760 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11761 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 11762 },
d6dc1a38
JO		 11763 {
11764 .cmd = NL80211_CMD_SET_CQM,
11765 .doit = nl80211_set_cqm,
11766 .policy = nl80211_policy,
5617c6cd 11767 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11768 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11769 NL80211_FLAG_NEED_RTNL,
d6dc1a38 11770 },
f444de05
JB		 11771 {
11772 .cmd = NL80211_CMD_SET_CHANNEL,
11773 .doit = nl80211_set_channel,
11774 .policy = nl80211_policy,
5617c6cd 11775 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11776 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11777 NL80211_FLAG_NEED_RTNL,
f444de05 11778 },
e8347eba
BJ		 11779 {
11780 .cmd = NL80211_CMD_SET_WDS_PEER,
11781 .doit = nl80211_set_wds_peer,
11782 .policy = nl80211_policy,
5617c6cd 11783 .flags = GENL_UNS_ADMIN_PERM,
43b19952
JB		 11784 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11785 NL80211_FLAG_NEED_RTNL,
e8347eba 11786 },
29cbe68c
JB		 11787 {
11788 .cmd = NL80211_CMD_JOIN_MESH,
11789 .doit = nl80211_join_mesh,
11790 .policy = nl80211_policy,
5617c6cd 11791 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 11792 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11793 NL80211_FLAG_NEED_RTNL,
11794 },
11795 {
11796 .cmd = NL80211_CMD_LEAVE_MESH,
11797 .doit = nl80211_leave_mesh,
11798 .policy = nl80211_policy,
5617c6cd 11799 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 11800 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11801 NL80211_FLAG_NEED_RTNL,
11802 },
6e0bd6c3
RL		 11803 {
11804 .cmd = NL80211_CMD_JOIN_OCB,
11805 .doit = nl80211_join_ocb,
11806 .policy = nl80211_policy,
5617c6cd 11807 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 11808 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11809 NL80211_FLAG_NEED_RTNL,
11810 },
11811 {
11812 .cmd = NL80211_CMD_LEAVE_OCB,
11813 .doit = nl80211_leave_ocb,
11814 .policy = nl80211_policy,
5617c6cd 11815 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 11816 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11817 NL80211_FLAG_NEED_RTNL,
11818 },
dfb89c56 11819#ifdef CONFIG_PM
ff1b6e69
JB		 11820 {
11821 .cmd = NL80211_CMD_GET_WOWLAN,
11822 .doit = nl80211_get_wowlan,
11823 .policy = nl80211_policy,
11824 /* can be retrieved by unprivileged users */
11825 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11826 NL80211_FLAG_NEED_RTNL,
11827 },
11828 {
11829 .cmd = NL80211_CMD_SET_WOWLAN,
11830 .doit = nl80211_set_wowlan,
11831 .policy = nl80211_policy,
5617c6cd 11832 .flags = GENL_UNS_ADMIN_PERM,
ff1b6e69
JB		 11833 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11834 NL80211_FLAG_NEED_RTNL,
11835 },
dfb89c56 11836#endif
e5497d76
JB		 11837 {
11838 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11839 .doit = nl80211_set_rekey_data,
11840 .policy = nl80211_policy,
5617c6cd 11841 .flags = GENL_UNS_ADMIN_PERM,
e5497d76 11842 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11843 NL80211_FLAG_NEED_RTNL |
11844 NL80211_FLAG_CLEAR_SKB,
e5497d76 11845 },
109086ce
AN		 11846 {
11847 .cmd = NL80211_CMD_TDLS_MGMT,
11848 .doit = nl80211_tdls_mgmt,
11849 .policy = nl80211_policy,
5617c6cd 11850 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 11851 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11852 NL80211_FLAG_NEED_RTNL,
11853 },
11854 {
11855 .cmd = NL80211_CMD_TDLS_OPER,
11856 .doit = nl80211_tdls_oper,
11857 .policy = nl80211_policy,
5617c6cd 11858 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 11859 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11860 NL80211_FLAG_NEED_RTNL,
11861 },
28946da7
JB		 11862 {
11863 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11864 .doit = nl80211_register_unexpected_frame,
11865 .policy = nl80211_policy,
5617c6cd 11866 .flags = GENL_UNS_ADMIN_PERM,
28946da7
JB		 11867 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11868 NL80211_FLAG_NEED_RTNL,
11869 },
7f6cf311
JB		 11870 {
11871 .cmd = NL80211_CMD_PROBE_CLIENT,
11872 .doit = nl80211_probe_client,
11873 .policy = nl80211_policy,
5617c6cd 11874 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11875 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 11876 NL80211_FLAG_NEED_RTNL,
11877 },
5e760230
JB		 11878 {
11879 .cmd = NL80211_CMD_REGISTER_BEACONS,
11880 .doit = nl80211_register_beacons,
11881 .policy = nl80211_policy,
5617c6cd 11882 .flags = GENL_UNS_ADMIN_PERM,
5e760230
JB		 11883 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11884 NL80211_FLAG_NEED_RTNL,
11885 },
1d9d9213
SW		 11886 {
11887 .cmd = NL80211_CMD_SET_NOACK_MAP,
11888 .doit = nl80211_set_noack_map,
11889 .policy = nl80211_policy,
5617c6cd 11890 .flags = GENL_UNS_ADMIN_PERM,
1d9d9213
SW		 11891 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11892 NL80211_FLAG_NEED_RTNL,
11893 },
98104fde
JB		 11894 {
11895 .cmd = NL80211_CMD_START_P2P_DEVICE,
11896 .doit = nl80211_start_p2p_device,
11897 .policy = nl80211_policy,
5617c6cd 11898 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 11899 .internal_flags = NL80211_FLAG_NEED_WDEV |
11900 NL80211_FLAG_NEED_RTNL,
11901 },
11902 {
11903 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11904 .doit = nl80211_stop_p2p_device,
11905 .policy = nl80211_policy,
5617c6cd 11906 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 11907 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11908 NL80211_FLAG_NEED_RTNL,
cb3b7d87
AB		 11909 },
11910 {
11911 .cmd = NL80211_CMD_START_NAN,
11912 .doit = nl80211_start_nan,
11913 .policy = nl80211_policy,
11914 .flags = GENL_ADMIN_PERM,
11915 .internal_flags = NL80211_FLAG_NEED_WDEV |
11916 NL80211_FLAG_NEED_RTNL,
11917 },
11918 {
11919 .cmd = NL80211_CMD_STOP_NAN,
11920 .doit = nl80211_stop_nan,
11921 .policy = nl80211_policy,
11922 .flags = GENL_ADMIN_PERM,
11923 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11924 NL80211_FLAG_NEED_RTNL,
98104fde 11925 },
f4e583c8
AQ		 11926 {
11927 .cmd = NL80211_CMD_SET_MCAST_RATE,
11928 .doit = nl80211_set_mcast_rate,
77765eaf 11929 .policy = nl80211_policy,
5617c6cd 11930 .flags = GENL_UNS_ADMIN_PERM,
77765eaf
VT		 11931 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11932 NL80211_FLAG_NEED_RTNL,
11933 },
11934 {
11935 .cmd = NL80211_CMD_SET_MAC_ACL,
11936 .doit = nl80211_set_mac_acl,
f4e583c8 11937 .policy = nl80211_policy,
5617c6cd 11938 .flags = GENL_UNS_ADMIN_PERM,
f4e583c8
AQ		 11939 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11940 NL80211_FLAG_NEED_RTNL,
11941 },
04f39047
SW		 11942 {
11943 .cmd = NL80211_CMD_RADAR_DETECT,
11944 .doit = nl80211_start_radar_detection,
11945 .policy = nl80211_policy,
5617c6cd 11946 .flags = GENL_UNS_ADMIN_PERM,
04f39047
SW		 11947 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11948 NL80211_FLAG_NEED_RTNL,
11949 },
3713b4e3
JB		 11950 {
11951 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11952 .doit = nl80211_get_protocol_features,
11953 .policy = nl80211_policy,
11954 },
355199e0
JM		 11955 {
11956 .cmd = NL80211_CMD_UPDATE_FT_IES,
11957 .doit = nl80211_update_ft_ies,
11958 .policy = nl80211_policy,
5617c6cd 11959 .flags = GENL_UNS_ADMIN_PERM,
355199e0
JM		 11960 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11961 NL80211_FLAG_NEED_RTNL,
11962 },
5de17984
AS		 11963 {
11964 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11965 .doit = nl80211_crit_protocol_start,
11966 .policy = nl80211_policy,
5617c6cd 11967 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 11968 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11969 NL80211_FLAG_NEED_RTNL,
11970 },
11971 {
11972 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11973 .doit = nl80211_crit_protocol_stop,
11974 .policy = nl80211_policy,
5617c6cd 11975 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 11976 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11977 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 11978 },
11979 {
11980 .cmd = NL80211_CMD_GET_COALESCE,
11981 .doit = nl80211_get_coalesce,
11982 .policy = nl80211_policy,
11983 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11984 NL80211_FLAG_NEED_RTNL,
11985 },
11986 {
11987 .cmd = NL80211_CMD_SET_COALESCE,
11988 .doit = nl80211_set_coalesce,
11989 .policy = nl80211_policy,
5617c6cd 11990 .flags = GENL_UNS_ADMIN_PERM,
be29b99a
AK		 11991 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11992 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 11993 },
11994 {
11995 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11996 .doit = nl80211_channel_switch,
11997 .policy = nl80211_policy,
5617c6cd 11998 .flags = GENL_UNS_ADMIN_PERM,
16ef1fe2
SW		 11999 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12000 NL80211_FLAG_NEED_RTNL,
12001 },
ad7e718c
JB		 12002 {
12003 .cmd = NL80211_CMD_VENDOR,
12004 .doit = nl80211_vendor_cmd,
7bdbe400 12005 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c 12006 .policy = nl80211_policy,
5617c6cd 12007 .flags = GENL_UNS_ADMIN_PERM,
ad7e718c
JB		 12008 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12009 NL80211_FLAG_NEED_RTNL,
12010 },
fa9ffc74
KP		 12011 {
12012 .cmd = NL80211_CMD_SET_QOS_MAP,
12013 .doit = nl80211_set_qos_map,
12014 .policy = nl80211_policy,
5617c6cd 12015 .flags = GENL_UNS_ADMIN_PERM,
fa9ffc74
KP		 12016 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12017 NL80211_FLAG_NEED_RTNL,
12018 },
960d01ac
JB		 12019 {
12020 .cmd = NL80211_CMD_ADD_TX_TS,
12021 .doit = nl80211_add_tx_ts,
12022 .policy = nl80211_policy,
5617c6cd 12023 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 12024 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12025 NL80211_FLAG_NEED_RTNL,
12026 },
12027 {
12028 .cmd = NL80211_CMD_DEL_TX_TS,
12029 .doit = nl80211_del_tx_ts,
12030 .policy = nl80211_policy,
5617c6cd 12031 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 12032 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12033 NL80211_FLAG_NEED_RTNL,
12034 },
1057d35e
AN		 12035 {
12036 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
12037 .doit = nl80211_tdls_channel_switch,
12038 .policy = nl80211_policy,
5617c6cd 12039 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 12040 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12041 NL80211_FLAG_NEED_RTNL,
12042 },
12043 {
12044 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
12045 .doit = nl80211_tdls_cancel_channel_switch,
12046 .policy = nl80211_policy,
5617c6cd 12047 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 12048 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12049 NL80211_FLAG_NEED_RTNL,
12050 },
55682965 12051};
9588bbd5 12052
55682965
JB		 12053/* notification functions */
12054
3bb20556
JB		 12055void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
12056 enum nl80211_commands cmd)
55682965
JB		 12057{
12058 struct sk_buff *msg;
86e8cf98 12059 struct nl80211_dump_wiphy_state state = {};
55682965 12060
3bb20556
JB		 12061 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
12062 cmd != NL80211_CMD_DEL_WIPHY);
12063
fd2120ca 12064 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 12065 if (!msg)
12066 return;
12067
3bb20556 12068 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 12069 nlmsg_free(msg);
12070 return;
12071 }
12072
68eb5503 12073 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12074 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 12075}
12076
896ff063
DK		 12077void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
12078 struct wireless_dev *wdev,
12079 enum nl80211_commands cmd)
12080{
12081 struct sk_buff *msg;
12082
12083 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
12084 cmd != NL80211_CMD_DEL_INTERFACE);
12085
12086 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12087 if (!msg)
12088 return;
12089
12090 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
12091 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
12092 nlmsg_free(msg);
12093 return;
12094 }
12095
12096 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12097 NL80211_MCGRP_CONFIG, GFP_KERNEL);
12098}
12099
362a415d
JB		 12100static int nl80211_add_scan_req(struct sk_buff *msg,
12101 struct cfg80211_registered_device *rdev)
12102{
12103 struct cfg80211_scan_request *req = rdev->scan_req;
12104 struct nlattr *nest;
12105 int i;
12106
12107 if (WARN_ON(!req))
12108 return 0;
12109
12110 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
12111 if (!nest)
12112 goto nla_put_failure;
9360ffd1
DM		 12113 for (i = 0; i < req->n_ssids; i++) {
12114 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
12115 goto nla_put_failure;
12116 }
362a415d
JB		 12117 nla_nest_end(msg, nest);
12118
12119 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
12120 if (!nest)
12121 goto nla_put_failure;
9360ffd1
DM		 12122 for (i = 0; i < req->n_channels; i++) {
12123 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
12124 goto nla_put_failure;
12125 }
362a415d
JB		 12126 nla_nest_end(msg, nest);
12127
9360ffd1
DM		 12128 if (req->ie &&
12129 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
12130 goto nla_put_failure;
362a415d 12131
ae917c9f
JB		 12132 if (req->flags &&
12133 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
12134 goto nla_put_failure;
ed473771 12135
1d76250b
AS		 12136 if (req->info.scan_start_tsf &&
12137 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
12138 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
12139 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
12140 req->info.tsf_bssid)))
12141 goto nla_put_failure;
12142
362a415d
JB		 12143 return 0;
12144 nla_put_failure:
12145 return -ENOBUFS;
12146}
12147
a538e2d5
JB		 12148static int nl80211_send_scan_msg(struct sk_buff *msg,
12149 struct cfg80211_registered_device *rdev,
fd014284 12150 struct wireless_dev *wdev,
15e47304 12151 u32 portid, u32 seq, int flags,
a538e2d5 12152 u32 cmd)
2a519311
JB		 12153{
12154 void *hdr;
12155
15e47304 12156 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 12157 if (!hdr)
12158 return -1;
12159
9360ffd1 12160 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 12161 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12162 wdev->netdev->ifindex)) ||
2dad624e
ND		 12163 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12164 NL80211_ATTR_PAD))
9360ffd1 12165 goto nla_put_failure;
2a519311 12166
362a415d
JB		 12167 /* ignore errors and send incomplete event anyway */
12168 nl80211_add_scan_req(msg, rdev);
2a519311 12169
053c095a
JB		 12170 genlmsg_end(msg, hdr);
12171 return 0;
2a519311
JB		 12172
12173 nla_put_failure:
12174 genlmsg_cancel(msg, hdr);
12175 return -EMSGSIZE;
12176}
12177
807f8a8c
LC		 12178static int
12179nl80211_send_sched_scan_msg(struct sk_buff *msg,
12180 struct cfg80211_registered_device *rdev,
12181 struct net_device *netdev,
15e47304 12182 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 12183{
12184 void *hdr;
12185
15e47304 12186 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 12187 if (!hdr)
12188 return -1;
12189
9360ffd1
DM		 12190 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12191 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12192 goto nla_put_failure;
807f8a8c 12193
053c095a
JB		 12194 genlmsg_end(msg, hdr);
12195 return 0;
807f8a8c
LC		 12196
12197 nla_put_failure:
12198 genlmsg_cancel(msg, hdr);
12199 return -EMSGSIZE;
12200}
12201
a538e2d5 12202void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 12203 struct wireless_dev *wdev)
a538e2d5
JB		 12204{
12205 struct sk_buff *msg;
12206
58050fce 12207 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 12208 if (!msg)
12209 return;
12210
fd014284 12211 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 12212 NL80211_CMD_TRIGGER_SCAN) < 0) {
12213 nlmsg_free(msg);
12214 return;
12215 }
12216
68eb5503 12217 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12218 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 12219}
12220
f9d15d16
JB		 12221struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
12222 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 12223{
12224 struct sk_buff *msg;
12225
fd2120ca 12226 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 12227 if (!msg)
f9d15d16 12228 return NULL;
2a519311 12229
fd014284 12230 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 12231 aborted ? NL80211_CMD_SCAN_ABORTED :
12232 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 12233 nlmsg_free(msg);
f9d15d16 12234 return NULL;
2a519311
JB		 12235 }
12236
f9d15d16 12237 return msg;
2a519311
JB		 12238}
12239
f9d15d16
JB		 12240void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
12241 struct sk_buff *msg)
2a519311 12242{
2a519311
JB		 12243 if (!msg)
12244 return;
12245
68eb5503 12246 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12247 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 12248}
12249
807f8a8c
LC		 12250void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
12251 struct net_device *netdev)
12252{
12253 struct sk_buff *msg;
12254
12255 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12256 if (!msg)
12257 return;
12258
12259 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
12260 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
12261 nlmsg_free(msg);
12262 return;
12263 }
12264
68eb5503 12265 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12266 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 12267}
12268
12269void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
12270 struct net_device *netdev, u32 cmd)
12271{
12272 struct sk_buff *msg;
12273
58050fce 12274 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 12275 if (!msg)
12276 return;
12277
12278 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
12279 nlmsg_free(msg);
12280 return;
12281 }
12282
68eb5503 12283 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12284 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 12285}
12286
b0d7aa59
JD		 12287static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
12288 struct regulatory_request *request)
73d54c9e 12289{
73d54c9e 12290 /* Userspace can always count this one always being set */
9360ffd1
DM		 12291 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
12292 goto nla_put_failure;
12293
12294 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
12295 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12296 NL80211_REGDOM_TYPE_WORLD))
12297 goto nla_put_failure;
12298 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
12299 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12300 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
12301 goto nla_put_failure;
12302 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
12303 request->intersect) {
12304 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12305 NL80211_REGDOM_TYPE_INTERSECTION))
12306 goto nla_put_failure;
12307 } else {
12308 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12309 NL80211_REGDOM_TYPE_COUNTRY) ||
12310 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
12311 request->alpha2))
12312 goto nla_put_failure;
12313 }
12314
ad30ca2c
AN		 12315 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
12316 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
12317
12318 if (wiphy &&
12319 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
12320 goto nla_put_failure;
1bdd716c
AN		 12321
12322 if (wiphy &&
12323 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
12324 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
12325 goto nla_put_failure;
ad30ca2c 12326 }
73d54c9e 12327
b0d7aa59
JD		 12328 return true;
12329
12330nla_put_failure:
12331 return false;
12332}
12333
12334/*
12335 * This can happen on global regulatory changes or device specific settings
12336 * based on custom regulatory domains.
12337 */
12338void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
12339 struct regulatory_request *request)
12340{
12341 struct sk_buff *msg;
12342 void *hdr;
12343
12344 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12345 if (!msg)
12346 return;
12347
12348 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
12349 if (!hdr) {
12350 nlmsg_free(msg);
12351 return;
12352 }
12353
12354 if (nl80211_reg_change_event_fill(msg, request) == false)
12355 goto nla_put_failure;
12356
3b7b72ee 12357 genlmsg_end(msg, hdr);
73d54c9e 12358
bc43b28c 12359 rcu_read_lock();
68eb5503 12360 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12361 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 12362 rcu_read_unlock();
73d54c9e
LR		 12363
12364 return;
12365
12366nla_put_failure:
12367 genlmsg_cancel(msg, hdr);
12368 nlmsg_free(msg);
12369}
12370
6039f6d2
JM		 12371static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
12372 struct net_device *netdev,
12373 const u8 *buf, size_t len,
b0b6aa2c
EP		 12374 enum nl80211_commands cmd, gfp_t gfp,
12375 int uapsd_queues)
6039f6d2
JM		 12376{
12377 struct sk_buff *msg;
12378 void *hdr;
12379
e6d6e342 12380 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 12381 if (!msg)
12382 return;
12383
12384 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12385 if (!hdr) {
12386 nlmsg_free(msg);
12387 return;
12388 }
12389
9360ffd1
DM		 12390 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12391 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12392 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
12393 goto nla_put_failure;
6039f6d2 12394
b0b6aa2c
EP		 12395 if (uapsd_queues >= 0) {
12396 struct nlattr *nla_wmm =
12397 nla_nest_start(msg, NL80211_ATTR_STA_WME);
12398 if (!nla_wmm)
12399 goto nla_put_failure;
12400
12401 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
12402 uapsd_queues))
12403 goto nla_put_failure;
12404
12405 nla_nest_end(msg, nla_wmm);
12406 }
12407
3b7b72ee 12408 genlmsg_end(msg, hdr);
6039f6d2 12409
68eb5503 12410 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12411 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 12412 return;
12413
12414 nla_put_failure:
12415 genlmsg_cancel(msg, hdr);
12416 nlmsg_free(msg);
12417}
12418
12419void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12420 struct net_device *netdev, const u8 *buf,
12421 size_t len, gfp_t gfp)
6039f6d2
JM		 12422{
12423 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12424 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 12425}
12426
12427void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
12428 struct net_device *netdev, const u8 *buf,
b0b6aa2c 12429 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 12430{
e6d6e342 12431 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12432 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 12433}
12434
53b46b84 12435void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12436 struct net_device *netdev, const u8 *buf,
12437 size_t len, gfp_t gfp)
6039f6d2
JM		 12438{
12439 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12440 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 12441}
12442
53b46b84
JM		 12443void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
12444 struct net_device *netdev, const u8 *buf,
e6d6e342 12445 size_t len, gfp_t gfp)
6039f6d2
JM		 12446{
12447 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12448 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 12449}
12450
6ff57cf8
JB		 12451void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
12452 size_t len)
cf4e594e 12453{
947add36
JB		 12454 struct wireless_dev *wdev = dev->ieee80211_ptr;
12455 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12456 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 12457 const struct ieee80211_mgmt *mgmt = (void *)buf;
12458 u32 cmd;
947add36 12459
6ff57cf8
JB		 12460 if (WARN_ON(len < 2))
12461 return;
cf4e594e 12462
6ff57cf8
JB		 12463 if (ieee80211_is_deauth(mgmt->frame_control))
12464 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
12465 else
12466 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 12467
6ff57cf8 12468 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 12469 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 12470}
6ff57cf8 12471EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 12472
1b06bb40
LR		 12473static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
12474 struct net_device *netdev, int cmd,
e6d6e342 12475 const u8 *addr, gfp_t gfp)
1965c853
JM		 12476{
12477 struct sk_buff *msg;
12478 void *hdr;
12479
e6d6e342 12480 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 12481 if (!msg)
12482 return;
12483
12484 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12485 if (!hdr) {
12486 nlmsg_free(msg);
12487 return;
12488 }
12489
9360ffd1
DM		 12490 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12491 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12492 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
12493 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12494 goto nla_put_failure;
1965c853 12495
3b7b72ee 12496 genlmsg_end(msg, hdr);
1965c853 12497
68eb5503 12498 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12499 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 12500 return;
12501
12502 nla_put_failure:
12503 genlmsg_cancel(msg, hdr);
12504 nlmsg_free(msg);
12505}
12506
12507void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12508 struct net_device *netdev, const u8 *addr,
12509 gfp_t gfp)
1965c853
JM		 12510{
12511 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 12512 addr, gfp);
1965c853
JM		 12513}
12514
12515void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12516 struct net_device *netdev, const u8 *addr,
12517 gfp_t gfp)
1965c853 12518{
e6d6e342
JB		 12519 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
12520 addr, gfp);
1965c853
JM		 12521}
12522
b23aa676
SO		 12523void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
12524 struct net_device *netdev, const u8 *bssid,
12525 const u8 *req_ie, size_t req_ie_len,
12526 const u8 *resp_ie, size_t resp_ie_len,
bf1ecd21 12527 int status, gfp_t gfp)
b23aa676
SO		 12528{
12529 struct sk_buff *msg;
12530 void *hdr;
12531
58050fce 12532 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12533 if (!msg)
12534 return;
12535
12536 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
12537 if (!hdr) {
12538 nlmsg_free(msg);
12539 return;
12540 }
12541
9360ffd1
DM		 12542 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12543 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12544 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
bf1ecd21
JM		 12545 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
12546 status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
12547 status) ||
12548 (status < 0 && nla_put_flag(msg, NL80211_ATTR_TIMED_OUT)) ||
9360ffd1
DM		 12549 (req_ie &&
12550 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12551 (resp_ie &&
12552 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12553 goto nla_put_failure;
b23aa676 12554
3b7b72ee 12555 genlmsg_end(msg, hdr);
b23aa676 12556
68eb5503 12557 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12558 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12559 return;
12560
12561 nla_put_failure:
12562 genlmsg_cancel(msg, hdr);
12563 nlmsg_free(msg);
b23aa676
SO		 12564}
12565
12566void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
12567 struct net_device *netdev, const u8 *bssid,
12568 const u8 *req_ie, size_t req_ie_len,
12569 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
12570{
12571 struct sk_buff *msg;
12572 void *hdr;
12573
58050fce 12574 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12575 if (!msg)
12576 return;
12577
12578 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
12579 if (!hdr) {
12580 nlmsg_free(msg);
12581 return;
12582 }
12583
9360ffd1
DM		 12584 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12585 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12586 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
12587 (req_ie &&
12588 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12589 (resp_ie &&
12590 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12591 goto nla_put_failure;
b23aa676 12592
3b7b72ee 12593 genlmsg_end(msg, hdr);
b23aa676 12594
68eb5503 12595 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12596 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12597 return;
12598
12599 nla_put_failure:
12600 genlmsg_cancel(msg, hdr);
12601 nlmsg_free(msg);
b23aa676
SO		 12602}
12603
12604void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
12605 struct net_device *netdev, u16 reason,
667503dd 12606 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 12607{
12608 struct sk_buff *msg;
12609 void *hdr;
12610
58050fce 12611 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 12612 if (!msg)
12613 return;
12614
12615 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
12616 if (!hdr) {
12617 nlmsg_free(msg);
12618 return;
12619 }
12620
9360ffd1
DM		 12621 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12622 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12623 (from_ap && reason &&
12624 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
12625 (from_ap &&
12626 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
12627 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
12628 goto nla_put_failure;
b23aa676 12629
3b7b72ee 12630 genlmsg_end(msg, hdr);
b23aa676 12631
68eb5503 12632 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12633 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 12634 return;
12635
12636 nla_put_failure:
12637 genlmsg_cancel(msg, hdr);
12638 nlmsg_free(msg);
b23aa676
SO		 12639}
12640
04a773ad
JB		 12641void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
12642 struct net_device *netdev, const u8 *bssid,
12643 gfp_t gfp)
12644{
12645 struct sk_buff *msg;
12646 void *hdr;
12647
fd2120ca 12648 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 12649 if (!msg)
12650 return;
12651
12652 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
12653 if (!hdr) {
12654 nlmsg_free(msg);
12655 return;
12656 }
12657
9360ffd1
DM		 12658 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12659 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12660 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12661 goto nla_put_failure;
04a773ad 12662
3b7b72ee 12663 genlmsg_end(msg, hdr);
04a773ad 12664
68eb5503 12665 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12666 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 12667 return;
12668
12669 nla_put_failure:
12670 genlmsg_cancel(msg, hdr);
12671 nlmsg_free(msg);
12672}
12673
947add36
JB		 12674void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12675 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 12676{
947add36 12677 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12678 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 12679 struct sk_buff *msg;
12680 void *hdr;
12681
947add36
JB		 12682 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12683 return;
12684
12685 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12686
c93b5e71
JC		 12687 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12688 if (!msg)
12689 return;
12690
12691 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12692 if (!hdr) {
12693 nlmsg_free(msg);
12694 return;
12695 }
12696
9360ffd1 12697 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 12698 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12699 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 12700 (ie_len && ie &&
12701 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12702 goto nla_put_failure;
c93b5e71 12703
3b7b72ee 12704 genlmsg_end(msg, hdr);
c93b5e71 12705
68eb5503 12706 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12707 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 12708 return;
12709
12710 nla_put_failure:
12711 genlmsg_cancel(msg, hdr);
12712 nlmsg_free(msg);
12713}
947add36 12714EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 12715
a3b8b056
JM		 12716void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12717 struct net_device *netdev, const u8 *addr,
12718 enum nl80211_key_type key_type, int key_id,
e6d6e342 12719 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 12720{
12721 struct sk_buff *msg;
12722 void *hdr;
12723
e6d6e342 12724 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 12725 if (!msg)
12726 return;
12727
12728 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12729 if (!hdr) {
12730 nlmsg_free(msg);
12731 return;
12732 }
12733
9360ffd1
DM		 12734 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12735 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12736 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12737 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12738 (key_id != -1 &&
12739 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12740 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12741 goto nla_put_failure;
a3b8b056 12742
3b7b72ee 12743 genlmsg_end(msg, hdr);
a3b8b056 12744
68eb5503 12745 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12746 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 12747 return;
12748
12749 nla_put_failure:
12750 genlmsg_cancel(msg, hdr);
12751 nlmsg_free(msg);
12752}
12753
6bad8766
LR		 12754void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12755 struct ieee80211_channel *channel_before,
12756 struct ieee80211_channel *channel_after)
12757{
12758 struct sk_buff *msg;
12759 void *hdr;
12760 struct nlattr *nl_freq;
12761
fd2120ca 12762 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 12763 if (!msg)
12764 return;
12765
12766 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12767 if (!hdr) {
12768 nlmsg_free(msg);
12769 return;
12770 }
12771
12772 /*
12773 * Since we are applying the beacon hint to a wiphy we know its
12774 * wiphy_idx is valid
12775 */
9360ffd1
DM		 12776 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12777 goto nla_put_failure;
6bad8766
LR		 12778
12779 /* Before */
12780 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12781 if (!nl_freq)
12782 goto nla_put_failure;
cdc89b97 12783 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 12784 goto nla_put_failure;
12785 nla_nest_end(msg, nl_freq);
12786
12787 /* After */
12788 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12789 if (!nl_freq)
12790 goto nla_put_failure;
cdc89b97 12791 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 12792 goto nla_put_failure;
12793 nla_nest_end(msg, nl_freq);
12794
3b7b72ee 12795 genlmsg_end(msg, hdr);
6bad8766 12796
463d0183 12797 rcu_read_lock();
68eb5503 12798 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12799 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 12800 rcu_read_unlock();
6bad8766
LR		 12801
12802 return;
12803
12804nla_put_failure:
12805 genlmsg_cancel(msg, hdr);
12806 nlmsg_free(msg);
12807}
12808
9588bbd5
JM		 12809static void nl80211_send_remain_on_chan_event(
12810 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 12811 struct wireless_dev *wdev, u64 cookie,
9588bbd5 12812 struct ieee80211_channel *chan,
9588bbd5
JM		 12813 unsigned int duration, gfp_t gfp)
12814{
12815 struct sk_buff *msg;
12816 void *hdr;
12817
12818 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12819 if (!msg)
12820 return;
12821
12822 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12823 if (!hdr) {
12824 nlmsg_free(msg);
12825 return;
12826 }
12827
9360ffd1 12828 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12829 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12830 wdev->netdev->ifindex)) ||
2dad624e
ND		 12831 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12832 NL80211_ATTR_PAD) ||
9360ffd1 12833 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 12834 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12835 NL80211_CHAN_NO_HT) ||
2dad624e
ND		 12836 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12837 NL80211_ATTR_PAD))
9360ffd1 12838 goto nla_put_failure;
9588bbd5 12839
9360ffd1
DM		 12840 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12841 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12842 goto nla_put_failure;
9588bbd5 12843
3b7b72ee 12844 genlmsg_end(msg, hdr);
9588bbd5 12845
68eb5503 12846 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12847 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 12848 return;
12849
12850 nla_put_failure:
12851 genlmsg_cancel(msg, hdr);
12852 nlmsg_free(msg);
12853}
12854
947add36
JB		 12855void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12856 struct ieee80211_channel *chan,
12857 unsigned int duration, gfp_t gfp)
9588bbd5 12858{
947add36 12859 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12860 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12861
12862 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 12863 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 12864 rdev, wdev, cookie, chan,
42d97a59 12865 duration, gfp);
9588bbd5 12866}
947add36 12867EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 12868
947add36
JB		 12869void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12870 struct ieee80211_channel *chan,
12871 gfp_t gfp)
9588bbd5 12872{
947add36 12873 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12874 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12875
12876 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 12877 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 12878 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 12879}
947add36 12880EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 12881
947add36
JB		 12882void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12883 struct station_info *sinfo, gfp_t gfp)
98b62183 12884{
947add36 12885 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12886 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 12887 struct sk_buff *msg;
12888
947add36
JB		 12889 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12890
58050fce 12891 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 12892 if (!msg)
12893 return;
12894
cf5ead82 12895 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 12896 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 12897 nlmsg_free(msg);
12898 return;
12899 }
12900
68eb5503 12901 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12902 NL80211_MCGRP_MLME, gfp);
98b62183 12903}
947add36 12904EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 12905
cf5ead82
JB		 12906void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12907 struct station_info *sinfo, gfp_t gfp)
ec15e68b 12908{
947add36 12909 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12910 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 12911 struct sk_buff *msg;
cf5ead82
JB		 12912 struct station_info empty_sinfo = {};
12913
12914 if (!sinfo)
12915 sinfo = &empty_sinfo;
ec15e68b 12916
947add36
JB		 12917 trace_cfg80211_del_sta(dev, mac_addr);
12918
58050fce 12919 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 12920 if (!msg)
12921 return;
12922
cf5ead82 12923 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 12924 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 12925 nlmsg_free(msg);
12926 return;
12927 }
12928
68eb5503 12929 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12930 NL80211_MCGRP_MLME, gfp);
ec15e68b 12931}
cf5ead82 12932EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 12933
947add36
JB		 12934void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12935 enum nl80211_connect_failed_reason reason,
12936 gfp_t gfp)
ed44a951 12937{
947add36 12938 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12939 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 12940 struct sk_buff *msg;
12941 void *hdr;
12942
12943 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12944 if (!msg)
12945 return;
12946
12947 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12948 if (!hdr) {
12949 nlmsg_free(msg);
12950 return;
12951 }
12952
12953 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12954 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12955 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12956 goto nla_put_failure;
12957
12958 genlmsg_end(msg, hdr);
12959
68eb5503 12960 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12961 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 12962 return;
12963
12964 nla_put_failure:
12965 genlmsg_cancel(msg, hdr);
12966 nlmsg_free(msg);
12967}
947add36 12968EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 12969
b92ab5d8
JB		 12970static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12971 const u8 *addr, gfp_t gfp)
28946da7
JB		 12972{
12973 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12974 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 12975 struct sk_buff *msg;
12976 void *hdr;
15e47304 12977 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 12978
15e47304 12979 if (!nlportid)
28946da7
JB		 12980 return false;
12981
12982 msg = nlmsg_new(100, gfp);
12983 if (!msg)
12984 return true;
12985
b92ab5d8 12986 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 12987 if (!hdr) {
12988 nlmsg_free(msg);
12989 return true;
12990 }
12991
9360ffd1
DM		 12992 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12993 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12994 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12995 goto nla_put_failure;
28946da7 12996
9c90a9f6 12997 genlmsg_end(msg, hdr);
15e47304 12998 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 12999 return true;
13000
13001 nla_put_failure:
13002 genlmsg_cancel(msg, hdr);
13003 nlmsg_free(msg);
13004 return true;
13005}
13006
947add36
JB		 13007bool cfg80211_rx_spurious_frame(struct net_device *dev,
13008 const u8 *addr, gfp_t gfp)
b92ab5d8 13009{
947add36
JB		 13010 struct wireless_dev *wdev = dev->ieee80211_ptr;
13011 bool ret;
13012
13013 trace_cfg80211_rx_spurious_frame(dev, addr);
13014
13015 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
13016 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
13017 trace_cfg80211_return_bool(false);
13018 return false;
13019 }
13020 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
13021 addr, gfp);
13022 trace_cfg80211_return_bool(ret);
13023 return ret;
b92ab5d8 13024}
947add36 13025EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 13026
947add36
JB		 13027bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
13028 const u8 *addr, gfp_t gfp)
b92ab5d8 13029{
947add36
JB		 13030 struct wireless_dev *wdev = dev->ieee80211_ptr;
13031 bool ret;
13032
13033 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
13034
13035 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
13036 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
13037 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
13038 trace_cfg80211_return_bool(false);
13039 return false;
13040 }
13041 ret = __nl80211_unexpected_frame(dev,
13042 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
13043 addr, gfp);
13044 trace_cfg80211_return_bool(ret);
13045 return ret;
b92ab5d8 13046}
947add36 13047EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 13048
2e161f78 13049int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 13050 struct wireless_dev *wdev, u32 nlportid,
804483e9 13051 int freq, int sig_dbm,
19504cf5 13052 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 13053{
71bbc994 13054 struct net_device *netdev = wdev->netdev;
026331c4
JM		 13055 struct sk_buff *msg;
13056 void *hdr;
026331c4
JM		 13057
13058 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13059 if (!msg)
13060 return -ENOMEM;
13061
2e161f78 13062 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 13063 if (!hdr) {
13064 nlmsg_free(msg);
13065 return -ENOMEM;
13066 }
13067
9360ffd1 13068 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 13069 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13070 netdev->ifindex)) ||
2dad624e
ND		 13071 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13072 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13073 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
13074 (sig_dbm &&
13075 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 13076 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
13077 (flags &&
13078 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 13079 goto nla_put_failure;
026331c4 13080
3b7b72ee 13081 genlmsg_end(msg, hdr);
026331c4 13082
15e47304 13083 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 13084
13085 nla_put_failure:
13086 genlmsg_cancel(msg, hdr);
13087 nlmsg_free(msg);
13088 return -ENOBUFS;
13089}
13090
947add36
JB		 13091void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
13092 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 13093{
947add36 13094 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13095 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 13096 struct net_device *netdev = wdev->netdev;
026331c4
JM		 13097 struct sk_buff *msg;
13098 void *hdr;
13099
947add36
JB		 13100 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
13101
026331c4
JM		 13102 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13103 if (!msg)
13104 return;
13105
2e161f78 13106 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 13107 if (!hdr) {
13108 nlmsg_free(msg);
13109 return;
13110 }
13111
9360ffd1 13112 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 13113 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13114 netdev->ifindex)) ||
2dad624e
ND		 13115 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13116 NL80211_ATTR_PAD) ||
9360ffd1 13117 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
2dad624e
ND		 13118 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13119 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13120 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
13121 goto nla_put_failure;
026331c4 13122
3b7b72ee 13123 genlmsg_end(msg, hdr);
026331c4 13124
68eb5503 13125 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13126 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 13127 return;
13128
13129 nla_put_failure:
13130 genlmsg_cancel(msg, hdr);
13131 nlmsg_free(msg);
13132}
947add36 13133EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 13134
5b97f49d
JB		 13135static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
13136 const char *mac, gfp_t gfp)
d6dc1a38 13137{
947add36 13138 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 13139 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13140 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13141 void **cb;
947add36 13142
d6dc1a38 13143 if (!msg)
5b97f49d 13144 return NULL;
d6dc1a38 13145
5b97f49d
JB		 13146 cb = (void **)msg->cb;
13147
13148 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
13149 if (!cb[0]) {
d6dc1a38 13150 nlmsg_free(msg);
5b97f49d 13151 return NULL;
d6dc1a38
JO		 13152 }
13153
9360ffd1 13154 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 13155 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 13156 goto nla_put_failure;
d6dc1a38 13157
5b97f49d 13158 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 13159 goto nla_put_failure;
13160
5b97f49d
JB		 13161 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
13162 if (!cb[1])
9360ffd1 13163 goto nla_put_failure;
d6dc1a38 13164
5b97f49d 13165 cb[2] = rdev;
d6dc1a38 13166
5b97f49d
JB		 13167 return msg;
13168 nla_put_failure:
13169 nlmsg_free(msg);
13170 return NULL;
13171}
13172
13173static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
13174{
13175 void **cb = (void **)msg->cb;
13176 struct cfg80211_registered_device *rdev = cb[2];
13177
13178 nla_nest_end(msg, cb[1]);
13179 genlmsg_end(msg, cb[0]);
13180
13181 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 13182
68eb5503 13183 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13184 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 13185}
13186
13187void cfg80211_cqm_rssi_notify(struct net_device *dev,
13188 enum nl80211_cqm_rssi_threshold_event rssi_event,
13189 gfp_t gfp)
13190{
13191 struct sk_buff *msg;
13192
13193 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
13194
98f03342
JB		 13195 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
13196 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
13197 return;
13198
5b97f49d
JB		 13199 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13200 if (!msg)
13201 return;
13202
13203 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
13204 rssi_event))
13205 goto nla_put_failure;
13206
13207 cfg80211_send_cqm(msg, gfp);
13208
d6dc1a38
JO		 13209 return;
13210
13211 nla_put_failure:
d6dc1a38
JO		 13212 nlmsg_free(msg);
13213}
947add36 13214EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 13215
5b97f49d
JB		 13216void cfg80211_cqm_txe_notify(struct net_device *dev,
13217 const u8 *peer, u32 num_packets,
13218 u32 rate, u32 intvl, gfp_t gfp)
13219{
13220 struct sk_buff *msg;
13221
13222 msg = cfg80211_prepare_cqm(dev, peer, gfp);
13223 if (!msg)
13224 return;
13225
13226 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
13227 goto nla_put_failure;
13228
13229 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
13230 goto nla_put_failure;
13231
13232 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
13233 goto nla_put_failure;
13234
13235 cfg80211_send_cqm(msg, gfp);
13236 return;
13237
13238 nla_put_failure:
13239 nlmsg_free(msg);
13240}
13241EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
13242
13243void cfg80211_cqm_pktloss_notify(struct net_device *dev,
13244 const u8 *peer, u32 num_packets, gfp_t gfp)
13245{
13246 struct sk_buff *msg;
13247
13248 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
13249
13250 msg = cfg80211_prepare_cqm(dev, peer, gfp);
13251 if (!msg)
13252 return;
13253
13254 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
13255 goto nla_put_failure;
13256
13257 cfg80211_send_cqm(msg, gfp);
13258 return;
13259
13260 nla_put_failure:
13261 nlmsg_free(msg);
13262}
13263EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
13264
98f03342
JB		 13265void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
13266{
13267 struct sk_buff *msg;
13268
13269 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13270 if (!msg)
13271 return;
13272
13273 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
13274 goto nla_put_failure;
13275
13276 cfg80211_send_cqm(msg, gfp);
13277 return;
13278
13279 nla_put_failure:
13280 nlmsg_free(msg);
13281}
13282EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
13283
947add36
JB		 13284static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
13285 struct net_device *netdev, const u8 *bssid,
13286 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 13287{
13288 struct sk_buff *msg;
13289 struct nlattr *rekey_attr;
13290 void *hdr;
13291
58050fce 13292 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 13293 if (!msg)
13294 return;
13295
13296 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
13297 if (!hdr) {
13298 nlmsg_free(msg);
13299 return;
13300 }
13301
9360ffd1
DM		 13302 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13303 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13304 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13305 goto nla_put_failure;
e5497d76
JB		 13306
13307 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
13308 if (!rekey_attr)
13309 goto nla_put_failure;
13310
9360ffd1
DM		 13311 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
13312 NL80211_REPLAY_CTR_LEN, replay_ctr))
13313 goto nla_put_failure;
e5497d76
JB		 13314
13315 nla_nest_end(msg, rekey_attr);
13316
3b7b72ee 13317 genlmsg_end(msg, hdr);
e5497d76 13318
68eb5503 13319 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13320 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 13321 return;
13322
13323 nla_put_failure:
13324 genlmsg_cancel(msg, hdr);
13325 nlmsg_free(msg);
13326}
13327
947add36
JB		 13328void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
13329 const u8 *replay_ctr, gfp_t gfp)
13330{
13331 struct wireless_dev *wdev = dev->ieee80211_ptr;
13332 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13333 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13334
13335 trace_cfg80211_gtk_rekey_notify(dev, bssid);
13336 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
13337}
13338EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
13339
13340static void
13341nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
13342 struct net_device *netdev, int index,
13343 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 13344{
13345 struct sk_buff *msg;
13346 struct nlattr *attr;
13347 void *hdr;
13348
58050fce 13349 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 13350 if (!msg)
13351 return;
13352
13353 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
13354 if (!hdr) {
13355 nlmsg_free(msg);
13356 return;
13357 }
13358
9360ffd1
DM		 13359 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13360 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13361 goto nla_put_failure;
c9df56b4
JM		 13362
13363 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
13364 if (!attr)
13365 goto nla_put_failure;
13366
9360ffd1
DM		 13367 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
13368 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
13369 (preauth &&
13370 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
13371 goto nla_put_failure;
c9df56b4
JM		 13372
13373 nla_nest_end(msg, attr);
13374
3b7b72ee 13375 genlmsg_end(msg, hdr);
c9df56b4 13376
68eb5503 13377 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13378 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 13379 return;
13380
13381 nla_put_failure:
13382 genlmsg_cancel(msg, hdr);
13383 nlmsg_free(msg);
13384}
13385
947add36
JB		 13386void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
13387 const u8 *bssid, bool preauth, gfp_t gfp)
13388{
13389 struct wireless_dev *wdev = dev->ieee80211_ptr;
13390 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13391 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13392
13393 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
13394 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
13395}
13396EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
13397
13398static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
13399 struct net_device *netdev,
13400 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 13401 gfp_t gfp,
13402 enum nl80211_commands notif,
13403 u8 count)
5314526b
TP		 13404{
13405 struct sk_buff *msg;
13406 void *hdr;
13407
58050fce 13408 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 13409 if (!msg)
13410 return;
13411
f8d7552e 13412 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 13413 if (!hdr) {
13414 nlmsg_free(msg);
13415 return;
13416 }
13417
683b6d3b
JB		 13418 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13419 goto nla_put_failure;
13420
13421 if (nl80211_send_chandef(msg, chandef))
7eab0f64 13422 goto nla_put_failure;
5314526b 13423
f8d7552e
LC		 13424 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
13425 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
13426 goto nla_put_failure;
13427
5314526b
TP		 13428 genlmsg_end(msg, hdr);
13429
68eb5503 13430 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13431 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 13432 return;
13433
13434 nla_put_failure:
13435 genlmsg_cancel(msg, hdr);
13436 nlmsg_free(msg);
13437}
13438
947add36
JB		 13439void cfg80211_ch_switch_notify(struct net_device *dev,
13440 struct cfg80211_chan_def *chandef)
84f10708 13441{
947add36
JB		 13442 struct wireless_dev *wdev = dev->ieee80211_ptr;
13443 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13444 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 13445
e487eaeb 13446 ASSERT_WDEV_LOCK(wdev);
947add36 13447
e487eaeb 13448 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 13449
9e0e2961 13450 wdev->chandef = *chandef;
96f55f12 13451 wdev->preset_chandef = *chandef;
f8d7552e
LC		 13452 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13453 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 13454}
13455EXPORT_SYMBOL(cfg80211_ch_switch_notify);
13456
f8d7552e
LC		 13457void cfg80211_ch_switch_started_notify(struct net_device *dev,
13458 struct cfg80211_chan_def *chandef,
13459 u8 count)
13460{
13461 struct wireless_dev *wdev = dev->ieee80211_ptr;
13462 struct wiphy *wiphy = wdev->wiphy;
13463 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13464
13465 trace_cfg80211_ch_switch_started_notify(dev, chandef);
13466
13467 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13468 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
13469}
13470EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
13471
04f39047
SW		 13472void
13473nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 13474 const struct cfg80211_chan_def *chandef,
04f39047
SW		 13475 enum nl80211_radar_event event,
13476 struct net_device *netdev, gfp_t gfp)
13477{
13478 struct sk_buff *msg;
13479 void *hdr;
13480
13481 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13482 if (!msg)
13483 return;
13484
13485 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
13486 if (!hdr) {
13487 nlmsg_free(msg);
13488 return;
13489 }
13490
13491 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
13492 goto nla_put_failure;
13493
13494 /* NOP and radar events don't need a netdev parameter */
13495 if (netdev) {
13496 struct wireless_dev *wdev = netdev->ieee80211_ptr;
13497
13498 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
2dad624e
ND		 13499 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13500 NL80211_ATTR_PAD))
04f39047
SW		 13501 goto nla_put_failure;
13502 }
13503
13504 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
13505 goto nla_put_failure;
13506
13507 if (nl80211_send_chandef(msg, chandef))
13508 goto nla_put_failure;
13509
9c90a9f6 13510 genlmsg_end(msg, hdr);
04f39047 13511
68eb5503 13512 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13513 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 13514 return;
13515
13516 nla_put_failure:
13517 genlmsg_cancel(msg, hdr);
13518 nlmsg_free(msg);
13519}
13520
7f6cf311
JB		 13521void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
13522 u64 cookie, bool acked, gfp_t gfp)
13523{
13524 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13525 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 13526 struct sk_buff *msg;
13527 void *hdr;
7f6cf311 13528
4ee3e063
BL		 13529 trace_cfg80211_probe_status(dev, addr, cookie, acked);
13530
58050fce 13531 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 13532
7f6cf311
JB		 13533 if (!msg)
13534 return;
13535
13536 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
13537 if (!hdr) {
13538 nlmsg_free(msg);
13539 return;
13540 }
13541
9360ffd1
DM		 13542 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13543 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13544 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2dad624e
ND		 13545 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13546 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13547 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
13548 goto nla_put_failure;
7f6cf311 13549
9c90a9f6 13550 genlmsg_end(msg, hdr);
7f6cf311 13551
68eb5503 13552 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13553 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 13554 return;
13555
13556 nla_put_failure:
13557 genlmsg_cancel(msg, hdr);
13558 nlmsg_free(msg);
13559}
13560EXPORT_SYMBOL(cfg80211_probe_status);
13561
5e760230
JB		 13562void cfg80211_report_obss_beacon(struct wiphy *wiphy,
13563 const u8 *frame, size_t len,
37c73b5f 13564 int freq, int sig_dbm)
5e760230 13565{
f26cbf40 13566 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 13567 struct sk_buff *msg;
13568 void *hdr;
37c73b5f 13569 struct cfg80211_beacon_registration *reg;
5e760230 13570
4ee3e063
BL		 13571 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
13572
37c73b5f
BG		 13573 spin_lock_bh(&rdev->beacon_registrations_lock);
13574 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
13575 msg = nlmsg_new(len + 100, GFP_ATOMIC);
13576 if (!msg) {
13577 spin_unlock_bh(&rdev->beacon_registrations_lock);
13578 return;
13579 }
5e760230 13580
37c73b5f
BG		 13581 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
13582 if (!hdr)
13583 goto nla_put_failure;
5e760230 13584
37c73b5f
BG		 13585 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13586 (freq &&
13587 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
13588 (sig_dbm &&
13589 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
13590 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
13591 goto nla_put_failure;
5e760230 13592
37c73b5f 13593 genlmsg_end(msg, hdr);
5e760230 13594
37c73b5f
BG		 13595 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
13596 }
13597 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 13598 return;
13599
13600 nla_put_failure:
37c73b5f
BG		 13601 spin_unlock_bh(&rdev->beacon_registrations_lock);
13602 if (hdr)
13603 genlmsg_cancel(msg, hdr);
5e760230
JB		 13604 nlmsg_free(msg);
13605}
13606EXPORT_SYMBOL(cfg80211_report_obss_beacon);
13607
cd8f7cb4 13608#ifdef CONFIG_PM
8cd4d456
LC		 13609static int cfg80211_net_detect_results(struct sk_buff *msg,
13610 struct cfg80211_wowlan_wakeup *wakeup)
13611{
13612 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
13613 struct nlattr *nl_results, *nl_match, *nl_freqs;
13614 int i, j;
13615
13616 nl_results = nla_nest_start(
13617 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
13618 if (!nl_results)
13619 return -EMSGSIZE;
13620
13621 for (i = 0; i < nd->n_matches; i++) {
13622 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
13623
13624 nl_match = nla_nest_start(msg, i);
13625 if (!nl_match)
13626 break;
13627
13628 /* The SSID attribute is optional in nl80211, but for
13629 * simplicity reasons it's always present in the
13630 * cfg80211 structure. If a driver can't pass the
13631 * SSID, that needs to be changed. A zero length SSID
13632 * is still a valid SSID (wildcard), so it cannot be
13633 * used for this purpose.
13634 */
13635 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
13636 match->ssid.ssid)) {
13637 nla_nest_cancel(msg, nl_match);
13638 goto out;
13639 }
13640
13641 if (match->n_channels) {
13642 nl_freqs = nla_nest_start(
13643 msg, NL80211_ATTR_SCAN_FREQUENCIES);
13644 if (!nl_freqs) {
13645 nla_nest_cancel(msg, nl_match);
13646 goto out;
13647 }
13648
13649 for (j = 0; j < match->n_channels; j++) {
5528fae8 13650 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 13651 nla_nest_cancel(msg, nl_freqs);
13652 nla_nest_cancel(msg, nl_match);
13653 goto out;
13654 }
13655 }
13656
13657 nla_nest_end(msg, nl_freqs);
13658 }
13659
13660 nla_nest_end(msg, nl_match);
13661 }
13662
13663out:
13664 nla_nest_end(msg, nl_results);
13665 return 0;
13666}
13667
cd8f7cb4
JB		 13668void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
13669 struct cfg80211_wowlan_wakeup *wakeup,
13670 gfp_t gfp)
13671{
f26cbf40 13672 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 13673 struct sk_buff *msg;
13674 void *hdr;
9c90a9f6 13675 int size = 200;
cd8f7cb4
JB		 13676
13677 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13678
13679 if (wakeup)
13680 size += wakeup->packet_present_len;
13681
13682 msg = nlmsg_new(size, gfp);
13683 if (!msg)
13684 return;
13685
13686 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13687 if (!hdr)
13688 goto free_msg;
13689
13690 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 13691 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13692 NL80211_ATTR_PAD))
cd8f7cb4
JB		 13693 goto free_msg;
13694
13695 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13696 wdev->netdev->ifindex))
13697 goto free_msg;
13698
13699 if (wakeup) {
13700 struct nlattr *reasons;
13701
13702 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 13703 if (!reasons)
13704 goto free_msg;
cd8f7cb4
JB		 13705
13706 if (wakeup->disconnect &&
13707 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13708 goto free_msg;
13709 if (wakeup->magic_pkt &&
13710 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13711 goto free_msg;
13712 if (wakeup->gtk_rekey_failure &&
13713 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13714 goto free_msg;
13715 if (wakeup->eap_identity_req &&
13716 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13717 goto free_msg;
13718 if (wakeup->four_way_handshake &&
13719 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13720 goto free_msg;
13721 if (wakeup->rfkill_release &&
13722 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13723 goto free_msg;
13724
13725 if (wakeup->pattern_idx >= 0 &&
13726 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13727 wakeup->pattern_idx))
13728 goto free_msg;
13729
ae917c9f
JB		 13730 if (wakeup->tcp_match &&
13731 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13732 goto free_msg;
2a0e047e 13733
ae917c9f
JB		 13734 if (wakeup->tcp_connlost &&
13735 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13736 goto free_msg;
2a0e047e 13737
ae917c9f
JB		 13738 if (wakeup->tcp_nomoretokens &&
13739 nla_put_flag(msg,
13740 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13741 goto free_msg;
2a0e047e 13742
cd8f7cb4
JB		 13743 if (wakeup->packet) {
13744 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13745 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13746
13747 if (!wakeup->packet_80211) {
13748 pkt_attr =
13749 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13750 len_attr =
13751 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13752 }
13753
13754 if (wakeup->packet_len &&
13755 nla_put_u32(msg, len_attr, wakeup->packet_len))
13756 goto free_msg;
13757
13758 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13759 wakeup->packet))
13760 goto free_msg;
13761 }
13762
8cd4d456
LC		 13763 if (wakeup->net_detect &&
13764 cfg80211_net_detect_results(msg, wakeup))
13765 goto free_msg;
13766
cd8f7cb4
JB		 13767 nla_nest_end(msg, reasons);
13768 }
13769
9c90a9f6 13770 genlmsg_end(msg, hdr);
cd8f7cb4 13771
68eb5503 13772 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13773 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 13774 return;
13775
13776 free_msg:
13777 nlmsg_free(msg);
13778}
13779EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13780#endif
13781
3475b094
JM		 13782void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13783 enum nl80211_tdls_operation oper,
13784 u16 reason_code, gfp_t gfp)
13785{
13786 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13787 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 13788 struct sk_buff *msg;
13789 void *hdr;
3475b094
JM		 13790
13791 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13792 reason_code);
13793
13794 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13795 if (!msg)
13796 return;
13797
13798 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13799 if (!hdr) {
13800 nlmsg_free(msg);
13801 return;
13802 }
13803
13804 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13805 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13806 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13807 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13808 (reason_code > 0 &&
13809 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13810 goto nla_put_failure;
13811
9c90a9f6 13812 genlmsg_end(msg, hdr);
3475b094 13813
68eb5503 13814 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13815 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 13816 return;
13817
13818 nla_put_failure:
13819 genlmsg_cancel(msg, hdr);
13820 nlmsg_free(msg);
13821}
13822EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13823
026331c4
JM		 13824static int nl80211_netlink_notify(struct notifier_block * nb,
13825 unsigned long state,
13826 void *_notify)
13827{
13828 struct netlink_notify *notify = _notify;
13829 struct cfg80211_registered_device *rdev;
13830 struct wireless_dev *wdev;
37c73b5f 13831 struct cfg80211_beacon_registration *reg, *tmp;
026331c4 13832
8f815cdd 13833 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
026331c4
JM		 13834 return NOTIFY_DONE;
13835
13836 rcu_read_lock();
13837
5e760230 13838 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 13839 bool schedule_destroy_work = false;
93a1e86c
JR		 13840 bool schedule_scan_stop = false;
13841 struct cfg80211_sched_scan_request *sched_scan_req =
13842 rcu_dereference(rdev->sched_scan_req);
13843
13844 if (sched_scan_req && notify->portid &&
13845 sched_scan_req->owner_nlportid == notify->portid)
13846 schedule_scan_stop = true;
78f22b6a 13847
53873f13 13848 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15e47304 13849 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 13850
78f22b6a
JB		 13851 if (wdev->owner_nlportid == notify->portid)
13852 schedule_destroy_work = true;
13853 }
13854
37c73b5f
BG		 13855 spin_lock_bh(&rdev->beacon_registrations_lock);
13856 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13857 list) {
13858 if (reg->nlportid == notify->portid) {
13859 list_del(&reg->list);
13860 kfree(reg);
13861 break;
13862 }
13863 }
13864 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 13865
13866 if (schedule_destroy_work) {
13867 struct cfg80211_iface_destroy *destroy;
13868
13869 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13870 if (destroy) {
13871 destroy->nlportid = notify->portid;
13872 spin_lock(&rdev->destroy_list_lock);
13873 list_add(&destroy->list, &rdev->destroy_list);
13874 spin_unlock(&rdev->destroy_list_lock);
13875 schedule_work(&rdev->destroy_work);
13876 }
93a1e86c
JR		 13877 } else if (schedule_scan_stop) {
13878 sched_scan_req->owner_nlportid = 0;
13879
13880 if (rdev->ops->sched_scan_stop &&
13881 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13882 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 13883 }
5e760230 13884 }
026331c4
JM		 13885
13886 rcu_read_unlock();
13887
05050753
I		 13888 /*
13889 * It is possible that the user space process that is controlling the
13890 * indoor setting disappeared, so notify the regulatory core.
13891 */
13892 regulatory_netlink_notify(notify->portid);
6784c7db 13893 return NOTIFY_OK;
026331c4
JM		 13894}
13895
13896static struct notifier_block nl80211_netlink_notifier = {
13897 .notifier_call = nl80211_netlink_notify,
13898};
13899
355199e0
JM		 13900void cfg80211_ft_event(struct net_device *netdev,
13901 struct cfg80211_ft_event_params *ft_event)
13902{
13903 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 13904 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 13905 struct sk_buff *msg;
13906 void *hdr;
355199e0
JM		 13907
13908 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13909
13910 if (!ft_event->target_ap)
13911 return;
13912
13913 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13914 if (!msg)
13915 return;
13916
13917 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 13918 if (!hdr)
13919 goto out;
355199e0 13920
ae917c9f
JB		 13921 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13922 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13923 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13924 goto out;
355199e0 13925
ae917c9f
JB		 13926 if (ft_event->ies &&
13927 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13928 goto out;
13929 if (ft_event->ric_ies &&
13930 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13931 ft_event->ric_ies))
13932 goto out;
355199e0 13933
9c90a9f6 13934 genlmsg_end(msg, hdr);
355199e0 13935
68eb5503 13936 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13937 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 13938 return;
13939 out:
13940 nlmsg_free(msg);
355199e0
JM		 13941}
13942EXPORT_SYMBOL(cfg80211_ft_event);
13943
5de17984
AS		 13944void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13945{
13946 struct cfg80211_registered_device *rdev;
13947 struct sk_buff *msg;
13948 void *hdr;
13949 u32 nlportid;
13950
f26cbf40 13951 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 13952 if (!rdev->crit_proto_nlportid)
13953 return;
13954
13955 nlportid = rdev->crit_proto_nlportid;
13956 rdev->crit_proto_nlportid = 0;
13957
13958 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13959 if (!msg)
13960 return;
13961
13962 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13963 if (!hdr)
13964 goto nla_put_failure;
13965
13966 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 13967 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13968 NL80211_ATTR_PAD))
5de17984
AS		 13969 goto nla_put_failure;
13970
13971 genlmsg_end(msg, hdr);
13972
13973 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13974 return;
13975
13976 nla_put_failure:
13977 if (hdr)
13978 genlmsg_cancel(msg, hdr);
13979 nlmsg_free(msg);
5de17984
AS		 13980}
13981EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13982
348baf0e
JB		 13983void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13984{
13985 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13986 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 13987 struct sk_buff *msg;
13988 void *hdr;
13989
13990 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13991 if (!msg)
13992 return;
13993
13994 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13995 if (!hdr)
13996 goto out;
13997
13998 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13999 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
2dad624e
ND		 14000 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14001 NL80211_ATTR_PAD))
348baf0e
JB		 14002 goto out;
14003
14004 genlmsg_end(msg, hdr);
14005
14006 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
14007 NL80211_MCGRP_MLME, GFP_KERNEL);
14008 return;
14009 out:
14010 nlmsg_free(msg);
14011}
14012
55682965
JB		 14013/* initialisation/exit functions */
14014
14015int nl80211_init(void)
14016{
0d63cbb5 14017 int err;
55682965 14018
2a94fe48
JB		 14019 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
14020 nl80211_mcgrps);
55682965
JB		 14021 if (err)
14022 return err;
14023
026331c4
JM		 14024 err = netlink_register_notifier(&nl80211_netlink_notifier);
14025 if (err)
14026 goto err_out;
14027
55682965
JB		 14028 return 0;
14029 err_out:
14030 genl_unregister_family(&nl80211_fam);
14031 return err;
14032}
14033
14034void nl80211_exit(void)
14035{
026331c4 14036 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 14037 genl_unregister_family(&nl80211_fam);
14038}
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