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mac80211: parse wide bandwidth channel switch IE with workaround
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
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 },
55682965
JB		 412};
413
e31b8213 414/* policy for the key attributes */
b54452b0 415static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 416 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 417 [NL80211_KEY_IDX] = { .type = NLA_U8 },
418 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 419 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 420 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
421 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 422 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 423 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
424};
425
426/* policy for the key default flags */
427static const struct nla_policy
428nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
429 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
430 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 431};
432
ff1b6e69
JB		 433/* policy for WoWLAN attributes */
434static const struct nla_policy
435nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
436 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
437 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
438 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
439 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 440 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
441 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
442 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
443 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 444 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 445 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 446};
447
448static const struct nla_policy
449nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
450 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
451 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
452 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
453 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
454 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
455 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
456 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
457 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
458 },
459 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
460 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
461 },
462 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
463 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
464 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 465};
466
be29b99a
AK		 467/* policy for coalesce rule attributes */
468static const struct nla_policy
469nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
470 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
471 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
472 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
473};
474
e5497d76
JB		 475/* policy for GTK rekey offload attributes */
476static const struct nla_policy
477nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
478 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
479 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
480 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
481};
482
a1f1c21c
LC		 483static const struct nla_policy
484nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 485 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 486 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 487 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 488};
489
3b06d277
AS		 490static const struct nla_policy
491nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
492 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
493 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
494};
495
38de03d2
AS		 496static const struct nla_policy
497nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
498 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
499 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
500 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
501 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
502 },
503};
504
97990a06
JB		 505static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
506 struct netlink_callback *cb,
507 struct cfg80211_registered_device **rdev,
508 struct wireless_dev **wdev)
a043897a 509{
97990a06 510 int err;
a043897a 511
97990a06 512 rtnl_lock();
a043897a 513
97990a06
JB		 514 if (!cb->args[0]) {
515 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
516 nl80211_fam.attrbuf, nl80211_fam.maxattr,
517 nl80211_policy);
518 if (err)
519 goto out_unlock;
67748893 520
97990a06
JB		 521 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
522 nl80211_fam.attrbuf);
523 if (IS_ERR(*wdev)) {
524 err = PTR_ERR(*wdev);
525 goto out_unlock;
526 }
f26cbf40 527 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 528 /* 0 is the first index - add 1 to parse only once */
529 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 530 cb->args[1] = (*wdev)->identifier;
531 } else {
c319d50b
JB		 532 /* subtract the 1 again here */
533 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 534 struct wireless_dev *tmp;
67748893 535
97990a06
JB		 536 if (!wiphy) {
537 err = -ENODEV;
538 goto out_unlock;
539 }
f26cbf40 540 *rdev = wiphy_to_rdev(wiphy);
97990a06 541 *wdev = NULL;
67748893 542
53873f13 543 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
97990a06
JB		 544 if (tmp->identifier == cb->args[1]) {
545 *wdev = tmp;
546 break;
547 }
548 }
67748893 549
97990a06
JB		 550 if (!*wdev) {
551 err = -ENODEV;
552 goto out_unlock;
553 }
67748893
JB		 554 }
555
67748893 556 return 0;
97990a06 557 out_unlock:
67748893
JB		 558 rtnl_unlock();
559 return err;
560}
561
97990a06 562static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 563{
67748893
JB		 564 rtnl_unlock();
565}
566
f4a11bb0
JB		 567/* IE validation */
568static bool is_valid_ie_attr(const struct nlattr *attr)
569{
570 const u8 *pos;
571 int len;
572
573 if (!attr)
574 return true;
575
576 pos = nla_data(attr);
577 len = nla_len(attr);
578
579 while (len) {
580 u8 elemlen;
581
582 if (len < 2)
583 return false;
584 len -= 2;
585
586 elemlen = pos[1];
587 if (elemlen > len)
588 return false;
589
590 len -= elemlen;
591 pos += 2 + elemlen;
592 }
593
594 return true;
595}
596
55682965 597/* message building helper */
15e47304 598static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 599 int flags, u8 cmd)
600{
601 /* since there is no private header just add the generic one */
15e47304 602 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 603}
604
5dab3b8a 605static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 606 struct ieee80211_channel *chan,
607 bool large)
5dab3b8a 608{
ea077c1c
RL		 609 /* Some channels must be completely excluded from the
610 * list to protect old user-space tools from breaking
611 */
612 if (!large && chan->flags &
613 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
614 return 0;
615
9360ffd1
DM		 616 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
617 chan->center_freq))
618 goto nla_put_failure;
5dab3b8a 619
9360ffd1
DM		 620 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
621 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
622 goto nla_put_failure;
8fe02e16
LR		 623 if (chan->flags & IEEE80211_CHAN_NO_IR) {
624 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
625 goto nla_put_failure;
626 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
627 goto nla_put_failure;
628 }
cdc89b97
JB		 629 if (chan->flags & IEEE80211_CHAN_RADAR) {
630 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
631 goto nla_put_failure;
632 if (large) {
633 u32 time;
634
635 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
636
637 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
638 chan->dfs_state))
639 goto nla_put_failure;
640 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
641 time))
642 goto nla_put_failure;
089027e5
JD		 643 if (nla_put_u32(msg,
644 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
645 chan->dfs_cac_ms))
646 goto nla_put_failure;
cdc89b97
JB		 647 }
648 }
5dab3b8a 649
fe1abafd
JB		 650 if (large) {
651 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
652 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
653 goto nla_put_failure;
654 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
655 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
656 goto nla_put_failure;
657 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
658 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
659 goto nla_put_failure;
660 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
661 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
662 goto nla_put_failure;
570dbde1
DS		 663 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
664 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
665 goto nla_put_failure;
06f207fc
AN		 666 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
667 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 668 goto nla_put_failure;
ea077c1c
RL		 669 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
670 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
671 goto nla_put_failure;
672 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
673 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
674 goto nla_put_failure;
fe1abafd
JB		 675 }
676
9360ffd1
DM		 677 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
678 DBM_TO_MBM(chan->max_power)))
679 goto nla_put_failure;
5dab3b8a
LR		 680
681 return 0;
682
683 nla_put_failure:
684 return -ENOBUFS;
685}
686
55682965
JB		 687/* netlink command implementations */
688
b9454e83
JB		 689struct key_parse {
690 struct key_params p;
691 int idx;
e31b8213 692 int type;
b9454e83 693 bool def, defmgmt;
dbd2fd65 694 bool def_uni, def_multi;
b9454e83
JB		 695};
696
697static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
698{
699 struct nlattr *tb[NL80211_KEY_MAX + 1];
700 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
701 nl80211_key_policy);
702 if (err)
703 return err;
704
705 k->def = !!tb[NL80211_KEY_DEFAULT];
706 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
707
dbd2fd65
JB		 708 if (k->def) {
709 k->def_uni = true;
710 k->def_multi = true;
711 }
712 if (k->defmgmt)
713 k->def_multi = true;
714
b9454e83
JB		 715 if (tb[NL80211_KEY_IDX])
716 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
717
718 if (tb[NL80211_KEY_DATA]) {
719 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
720 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
721 }
722
723 if (tb[NL80211_KEY_SEQ]) {
724 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
725 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
726 }
727
728 if (tb[NL80211_KEY_CIPHER])
729 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
730
e31b8213
JB		 731 if (tb[NL80211_KEY_TYPE]) {
732 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
733 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
734 return -EINVAL;
735 }
736
dbd2fd65
JB		 737 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
738 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
7a087e74 739
2da8f419
JB		 740 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
741 tb[NL80211_KEY_DEFAULT_TYPES],
742 nl80211_key_default_policy);
dbd2fd65
JB		 743 if (err)
744 return err;
745
746 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
747 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
748 }
749
b9454e83
JB		 750 return 0;
751}
752
753static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
754{
755 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
756 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
757 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
758 }
759
760 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
761 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
762 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
763 }
764
765 if (info->attrs[NL80211_ATTR_KEY_IDX])
766 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
767
768 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
769 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
770
771 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
772 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
773
dbd2fd65
JB		 774 if (k->def) {
775 k->def_uni = true;
776 k->def_multi = true;
777 }
778 if (k->defmgmt)
779 k->def_multi = true;
780
e31b8213
JB		 781 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
782 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
783 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
784 return -EINVAL;
785 }
786
dbd2fd65
JB		 787 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
788 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
789 int err = nla_parse_nested(
790 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
791 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
792 nl80211_key_default_policy);
793 if (err)
794 return err;
795
796 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
797 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
798 }
799
b9454e83
JB		 800 return 0;
801}
802
803static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
804{
805 int err;
806
807 memset(k, 0, sizeof(*k));
808 k->idx = -1;
e31b8213 809 k->type = -1;
b9454e83
JB		 810
811 if (info->attrs[NL80211_ATTR_KEY])
812 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
813 else
814 err = nl80211_parse_key_old(info, k);
815
816 if (err)
817 return err;
818
819 if (k->def && k->defmgmt)
820 return -EINVAL;
821
dbd2fd65
JB		 822 if (k->defmgmt) {
823 if (k->def_uni || !k->def_multi)
824 return -EINVAL;
825 }
826
b9454e83
JB		 827 if (k->idx != -1) {
828 if (k->defmgmt) {
829 if (k->idx < 4 || k->idx > 5)
830 return -EINVAL;
831 } else if (k->def) {
832 if (k->idx < 0 || k->idx > 3)
833 return -EINVAL;
834 } else {
835 if (k->idx < 0 || k->idx > 5)
836 return -EINVAL;
837 }
838 }
839
840 return 0;
841}
842
fffd0934
JB		 843static struct cfg80211_cached_keys *
844nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 845 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 846{
847 struct key_parse parse;
848 struct nlattr *key;
849 struct cfg80211_cached_keys *result;
850 int rem, err, def = 0;
851
852 result = kzalloc(sizeof(*result), GFP_KERNEL);
853 if (!result)
854 return ERR_PTR(-ENOMEM);
855
856 result->def = -1;
857 result->defmgmt = -1;
858
859 nla_for_each_nested(key, keys, rem) {
860 memset(&parse, 0, sizeof(parse));
861 parse.idx = -1;
862
863 err = nl80211_parse_key_new(key, &parse);
864 if (err)
865 goto error;
866 err = -EINVAL;
867 if (!parse.p.key)
868 goto error;
869 if (parse.idx < 0 || parse.idx > 4)
870 goto error;
871 if (parse.def) {
872 if (def)
873 goto error;
874 def = 1;
875 result->def = parse.idx;
dbd2fd65
JB		 876 if (!parse.def_uni || !parse.def_multi)
877 goto error;
fffd0934
JB		 878 } else if (parse.defmgmt)
879 goto error;
880 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 881 parse.idx, false, NULL);
fffd0934
JB		 882 if (err)
883 goto error;
884 result->params[parse.idx].cipher = parse.p.cipher;
885 result->params[parse.idx].key_len = parse.p.key_len;
886 result->params[parse.idx].key = result->data[parse.idx];
887 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 888
889 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
890 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
891 if (no_ht)
892 *no_ht = true;
893 }
fffd0934
JB		 894 }
895
896 return result;
897 error:
898 kfree(result);
899 return ERR_PTR(err);
900}
901
902static int nl80211_key_allowed(struct wireless_dev *wdev)
903{
904 ASSERT_WDEV_LOCK(wdev);
905
fffd0934
JB		 906 switch (wdev->iftype) {
907 case NL80211_IFTYPE_AP:
908 case NL80211_IFTYPE_AP_VLAN:
074ac8df 909 case NL80211_IFTYPE_P2P_GO:
ff973af7 910 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 911 break;
912 case NL80211_IFTYPE_ADHOC:
fffd0934 913 case NL80211_IFTYPE_STATION:
074ac8df 914 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 915 if (!wdev->current_bss)
fffd0934
JB		 916 return -ENOLINK;
917 break;
de4fcbad 918 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 919 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 920 case NL80211_IFTYPE_MONITOR:
921 case NL80211_IFTYPE_P2P_DEVICE:
922 case NL80211_IFTYPE_WDS:
923 case NUM_NL80211_IFTYPES:
fffd0934
JB		 924 return -EINVAL;
925 }
926
927 return 0;
928}
929
664834de
JM		 930static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
931 struct nlattr *tb)
932{
933 struct ieee80211_channel *chan;
934
935 if (tb == NULL)
936 return NULL;
937 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
938 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
939 return NULL;
940 return chan;
941}
942
7527a782
JB		 943static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
944{
945 struct nlattr *nl_modes = nla_nest_start(msg, attr);
946 int i;
947
948 if (!nl_modes)
949 goto nla_put_failure;
950
951 i = 0;
952 while (ifmodes) {
9360ffd1
DM		 953 if ((ifmodes & 1) && nla_put_flag(msg, i))
954 goto nla_put_failure;
7527a782
JB		 955 ifmodes >>= 1;
956 i++;
957 }
958
959 nla_nest_end(msg, nl_modes);
960 return 0;
961
962nla_put_failure:
963 return -ENOBUFS;
964}
965
966static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 967 struct sk_buff *msg,
968 bool large)
7527a782
JB		 969{
970 struct nlattr *nl_combis;
971 int i, j;
972
973 nl_combis = nla_nest_start(msg,
974 NL80211_ATTR_INTERFACE_COMBINATIONS);
975 if (!nl_combis)
976 goto nla_put_failure;
977
978 for (i = 0; i < wiphy->n_iface_combinations; i++) {
979 const struct ieee80211_iface_combination *c;
980 struct nlattr *nl_combi, *nl_limits;
981
982 c = &wiphy->iface_combinations[i];
983
984 nl_combi = nla_nest_start(msg, i + 1);
985 if (!nl_combi)
986 goto nla_put_failure;
987
988 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
989 if (!nl_limits)
990 goto nla_put_failure;
991
992 for (j = 0; j < c->n_limits; j++) {
993 struct nlattr *nl_limit;
994
995 nl_limit = nla_nest_start(msg, j + 1);
996 if (!nl_limit)
997 goto nla_put_failure;
9360ffd1
DM		 998 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
999 c->limits[j].max))
1000 goto nla_put_failure;
7527a782
JB		 1001 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1002 c->limits[j].types))
1003 goto nla_put_failure;
1004 nla_nest_end(msg, nl_limit);
1005 }
1006
1007 nla_nest_end(msg, nl_limits);
1008
9360ffd1
DM		 1009 if (c->beacon_int_infra_match &&
1010 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1011 goto nla_put_failure;
1012 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1013 c->num_different_channels) ||
1014 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1015 c->max_interfaces))
1016 goto nla_put_failure;
cdc89b97 1017 if (large &&
8c48b50a
FF		 1018 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1019 c->radar_detect_widths) ||
1020 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1021 c->radar_detect_regions)))
cdc89b97 1022 goto nla_put_failure;
7527a782
JB		 1023
1024 nla_nest_end(msg, nl_combi);
1025 }
1026
1027 nla_nest_end(msg, nl_combis);
1028
1029 return 0;
1030nla_put_failure:
1031 return -ENOBUFS;
1032}
1033
3713b4e3 1034#ifdef CONFIG_PM
b56cf720
JB		 1035static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1036 struct sk_buff *msg)
1037{
964dc9e2 1038 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1039 struct nlattr *nl_tcp;
1040
1041 if (!tcp)
1042 return 0;
1043
1044 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1045 if (!nl_tcp)
1046 return -ENOBUFS;
1047
1048 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1049 tcp->data_payload_max))
1050 return -ENOBUFS;
1051
1052 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1053 tcp->data_payload_max))
1054 return -ENOBUFS;
1055
1056 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1057 return -ENOBUFS;
1058
1059 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1060 sizeof(*tcp->tok), tcp->tok))
1061 return -ENOBUFS;
1062
1063 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1064 tcp->data_interval_max))
1065 return -ENOBUFS;
1066
1067 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1068 tcp->wake_payload_max))
1069 return -ENOBUFS;
1070
1071 nla_nest_end(msg, nl_tcp);
1072 return 0;
1073}
1074
3713b4e3 1075static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1076 struct cfg80211_registered_device *rdev,
b56cf720 1077 bool large)
55682965 1078{
3713b4e3 1079 struct nlattr *nl_wowlan;
55682965 1080
1b8ec87a 1081 if (!rdev->wiphy.wowlan)
3713b4e3 1082 return 0;
55682965 1083
3713b4e3
JB		 1084 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1085 if (!nl_wowlan)
1086 return -ENOBUFS;
9360ffd1 1087
1b8ec87a 1088 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1089 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1090 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1091 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1092 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1093 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1094 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1095 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1096 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1097 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1098 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1099 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1100 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1101 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1102 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1103 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1104 return -ENOBUFS;
9360ffd1 1105
1b8ec87a 1106 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1107 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1108 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1109 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1110 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1111 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1112 };
9360ffd1 1113
3713b4e3
JB		 1114 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1115 sizeof(pat), &pat))
1116 return -ENOBUFS;
1117 }
9360ffd1 1118
75453ccb
LC		 1119 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1120 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1121 rdev->wiphy.wowlan->max_nd_match_sets))
1122 return -ENOBUFS;
1123
1b8ec87a 1124 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1125 return -ENOBUFS;
1126
3713b4e3 1127 nla_nest_end(msg, nl_wowlan);
9360ffd1 1128
3713b4e3
JB		 1129 return 0;
1130}
1131#endif
9360ffd1 1132
be29b99a 1133static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1134 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1135{
1136 struct nl80211_coalesce_rule_support rule;
1137
1b8ec87a 1138 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1139 return 0;
1140
1b8ec87a
ZG		 1141 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1142 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1143 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1144 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1145 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1146 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1147
1148 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1149 return -ENOBUFS;
1150
1151 return 0;
1152}
1153
3713b4e3
JB		 1154static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1155 struct ieee80211_supported_band *sband)
1156{
1157 struct nlattr *nl_rates, *nl_rate;
1158 struct ieee80211_rate *rate;
1159 int i;
87bbbe22 1160
3713b4e3
JB		 1161 /* add HT info */
1162 if (sband->ht_cap.ht_supported &&
1163 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1164 sizeof(sband->ht_cap.mcs),
1165 &sband->ht_cap.mcs) ||
1166 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1167 sband->ht_cap.cap) ||
1168 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1169 sband->ht_cap.ampdu_factor) ||
1170 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1171 sband->ht_cap.ampdu_density)))
1172 return -ENOBUFS;
afe0cbf8 1173
3713b4e3
JB		 1174 /* add VHT info */
1175 if (sband->vht_cap.vht_supported &&
1176 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1177 sizeof(sband->vht_cap.vht_mcs),
1178 &sband->vht_cap.vht_mcs) ||
1179 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1180 sband->vht_cap.cap)))
1181 return -ENOBUFS;
f59ac048 1182
3713b4e3
JB		 1183 /* add bitrates */
1184 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1185 if (!nl_rates)
1186 return -ENOBUFS;
ee688b00 1187
3713b4e3
JB		 1188 for (i = 0; i < sband->n_bitrates; i++) {
1189 nl_rate = nla_nest_start(msg, i);
1190 if (!nl_rate)
1191 return -ENOBUFS;
ee688b00 1192
3713b4e3
JB		 1193 rate = &sband->bitrates[i];
1194 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1195 rate->bitrate))
1196 return -ENOBUFS;
1197 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1198 nla_put_flag(msg,
1199 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1200 return -ENOBUFS;
ee688b00 1201
3713b4e3
JB		 1202 nla_nest_end(msg, nl_rate);
1203 }
d51626df 1204
3713b4e3 1205 nla_nest_end(msg, nl_rates);
bf0c111e 1206
3713b4e3
JB		 1207 return 0;
1208}
ee688b00 1209
3713b4e3
JB		 1210static int
1211nl80211_send_mgmt_stypes(struct sk_buff *msg,
1212 const struct ieee80211_txrx_stypes *mgmt_stypes)
1213{
1214 u16 stypes;
1215 struct nlattr *nl_ftypes, *nl_ifs;
1216 enum nl80211_iftype ift;
1217 int i;
ee688b00 1218
3713b4e3
JB		 1219 if (!mgmt_stypes)
1220 return 0;
5dab3b8a 1221
3713b4e3
JB		 1222 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1223 if (!nl_ifs)
1224 return -ENOBUFS;
e2f367f2 1225
3713b4e3
JB		 1226 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1227 nl_ftypes = nla_nest_start(msg, ift);
1228 if (!nl_ftypes)
1229 return -ENOBUFS;
1230 i = 0;
1231 stypes = mgmt_stypes[ift].tx;
1232 while (stypes) {
1233 if ((stypes & 1) &&
1234 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1235 (i << 4) | IEEE80211_FTYPE_MGMT))
1236 return -ENOBUFS;
1237 stypes >>= 1;
1238 i++;
ee688b00 1239 }
3713b4e3
JB		 1240 nla_nest_end(msg, nl_ftypes);
1241 }
ee688b00 1242
3713b4e3 1243 nla_nest_end(msg, nl_ifs);
ee688b00 1244
3713b4e3
JB		 1245 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1246 if (!nl_ifs)
1247 return -ENOBUFS;
ee688b00 1248
3713b4e3
JB		 1249 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1250 nl_ftypes = nla_nest_start(msg, ift);
1251 if (!nl_ftypes)
1252 return -ENOBUFS;
1253 i = 0;
1254 stypes = mgmt_stypes[ift].rx;
1255 while (stypes) {
1256 if ((stypes & 1) &&
1257 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1258 (i << 4) | IEEE80211_FTYPE_MGMT))
1259 return -ENOBUFS;
1260 stypes >>= 1;
1261 i++;
1262 }
1263 nla_nest_end(msg, nl_ftypes);
1264 }
1265 nla_nest_end(msg, nl_ifs);
ee688b00 1266
3713b4e3
JB		 1267 return 0;
1268}
ee688b00 1269
86e8cf98
JB		 1270struct nl80211_dump_wiphy_state {
1271 s64 filter_wiphy;
1272 long start;
019ae3a9 1273 long split_start, band_start, chan_start, capa_start;
86e8cf98
JB		 1274 bool split;
1275};
1276
1b8ec87a 1277static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1278 enum nl80211_commands cmd,
3713b4e3 1279 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1280 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1281{
1282 void *hdr;
1283 struct nlattr *nl_bands, *nl_band;
1284 struct nlattr *nl_freqs, *nl_freq;
1285 struct nlattr *nl_cmds;
57fbcce3 1286 enum nl80211_band band;
3713b4e3
JB		 1287 struct ieee80211_channel *chan;
1288 int i;
1289 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1290 rdev->wiphy.mgmt_stypes;
fe1abafd 1291 u32 features;
ee688b00 1292
3bb20556 1293 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1294 if (!hdr)
1295 return -ENOBUFS;
ee688b00 1296
86e8cf98
JB		 1297 if (WARN_ON(!state))
1298 return -EINVAL;
ee688b00 1299
1b8ec87a 1300 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1301 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1302 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1303 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1304 cfg80211_rdev_list_generation))
8fdc621d
JB		 1305 goto nla_put_failure;
1306
3bb20556
JB		 1307 if (cmd != NL80211_CMD_NEW_WIPHY)
1308 goto finish;
1309
86e8cf98 1310 switch (state->split_start) {
3713b4e3
JB		 1311 case 0:
1312 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1313 rdev->wiphy.retry_short) ||
3713b4e3 1314 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1315 rdev->wiphy.retry_long) ||
3713b4e3 1316 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1317 rdev->wiphy.frag_threshold) ||
3713b4e3 1318 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1319 rdev->wiphy.rts_threshold) ||
3713b4e3 1320 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1321 rdev->wiphy.coverage_class) ||
3713b4e3 1322 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1323 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1324 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1325 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1326 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1327 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1328 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1329 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1330 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1331 rdev->wiphy.max_match_sets) ||
1332 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1333 rdev->wiphy.max_sched_scan_plans) ||
1334 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1335 rdev->wiphy.max_sched_scan_plan_interval) ||
1336 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1337 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1338 goto nla_put_failure;
3713b4e3 1339
1b8ec87a 1340 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1341 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1342 goto nla_put_failure;
1b8ec87a 1343 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1344 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1345 goto nla_put_failure;
1b8ec87a 1346 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1347 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1348 goto nla_put_failure;
1b8ec87a 1349 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1350 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1351 goto nla_put_failure;
1b8ec87a 1352 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1353 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1354 goto nla_put_failure;
1b8ec87a 1355 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1356 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1357 goto nla_put_failure;
86e8cf98
JB		 1358 state->split_start++;
1359 if (state->split)
3713b4e3
JB		 1360 break;
1361 case 1:
1362 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1363 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1364 rdev->wiphy.cipher_suites))
3713b4e3 1365 goto nla_put_failure;
4745fc09 1366
3713b4e3 1367 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1368 rdev->wiphy.max_num_pmkids))
3713b4e3 1369 goto nla_put_failure;
b23aa676 1370
1b8ec87a 1371 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1372 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1373 goto nla_put_failure;
b23aa676 1374
3713b4e3 1375 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1376 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1377 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1378 rdev->wiphy.available_antennas_rx))
9360ffd1 1379 goto nla_put_failure;
b23aa676 1380
1b8ec87a 1381 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1382 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1383 rdev->wiphy.probe_resp_offload))
3713b4e3 1384 goto nla_put_failure;
8fdc621d 1385
1b8ec87a
ZG		 1386 if ((rdev->wiphy.available_antennas_tx ||
1387 rdev->wiphy.available_antennas_rx) &&
1388 rdev->ops->get_antenna) {
3713b4e3
JB		 1389 u32 tx_ant = 0, rx_ant = 0;
1390 int res;
7a087e74 1391
1b8ec87a 1392 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1393 if (!res) {
1394 if (nla_put_u32(msg,
1395 NL80211_ATTR_WIPHY_ANTENNA_TX,
1396 tx_ant) ||
1397 nla_put_u32(msg,
1398 NL80211_ATTR_WIPHY_ANTENNA_RX,
1399 rx_ant))
1400 goto nla_put_failure;
1401 }
1402 }
a293911d 1403
86e8cf98
JB		 1404 state->split_start++;
1405 if (state->split)
3713b4e3
JB		 1406 break;
1407 case 2:
1408 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1409 rdev->wiphy.interface_modes))
3713b4e3 1410 goto nla_put_failure;
86e8cf98
JB		 1411 state->split_start++;
1412 if (state->split)
3713b4e3
JB		 1413 break;
1414 case 3:
1415 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1416 if (!nl_bands)
1417 goto nla_put_failure;
f7ca38df 1418
86e8cf98 1419 for (band = state->band_start;
57fbcce3 1420 band < NUM_NL80211_BANDS; band++) {
3713b4e3 1421 struct ieee80211_supported_band *sband;
2e161f78 1422
1b8ec87a 1423 sband = rdev->wiphy.bands[band];
2e161f78 1424
3713b4e3
JB		 1425 if (!sband)
1426 continue;
1427
1428 nl_band = nla_nest_start(msg, band);
1429 if (!nl_band)
2e161f78 1430 goto nla_put_failure;
3713b4e3 1431
86e8cf98 1432 switch (state->chan_start) {
3713b4e3
JB		 1433 case 0:
1434 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1435 goto nla_put_failure;
86e8cf98
JB		 1436 state->chan_start++;
1437 if (state->split)
3713b4e3
JB		 1438 break;
1439 default:
1440 /* add frequencies */
1441 nl_freqs = nla_nest_start(
1442 msg, NL80211_BAND_ATTR_FREQS);
1443 if (!nl_freqs)
1444 goto nla_put_failure;
1445
86e8cf98 1446 for (i = state->chan_start - 1;
3713b4e3
JB		 1447 i < sband->n_channels;
1448 i++) {
1449 nl_freq = nla_nest_start(msg, i);
1450 if (!nl_freq)
1451 goto nla_put_failure;
1452
1453 chan = &sband->channels[i];
1454
86e8cf98
JB		 1455 if (nl80211_msg_put_channel(
1456 msg, chan,
1457 state->split))
3713b4e3
JB		 1458 goto nla_put_failure;
1459
1460 nla_nest_end(msg, nl_freq);
86e8cf98 1461 if (state->split)
3713b4e3
JB		 1462 break;
1463 }
1464 if (i < sband->n_channels)
86e8cf98 1465 state->chan_start = i + 2;
3713b4e3 1466 else
86e8cf98 1467 state->chan_start = 0;
3713b4e3
JB		 1468 nla_nest_end(msg, nl_freqs);
1469 }
1470
1471 nla_nest_end(msg, nl_band);
1472
86e8cf98 1473 if (state->split) {
3713b4e3 1474 /* start again here */
86e8cf98 1475 if (state->chan_start)
3713b4e3
JB		 1476 band--;
1477 break;
2e161f78 1478 }
2e161f78 1479 }
3713b4e3 1480 nla_nest_end(msg, nl_bands);
2e161f78 1481
57fbcce3 1482 if (band < NUM_NL80211_BANDS)
86e8cf98 1483 state->band_start = band + 1;
3713b4e3 1484 else
86e8cf98 1485 state->band_start = 0;
74b70a4e 1486
3713b4e3 1487 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1488 if (state->band_start == 0 && state->chan_start == 0)
1489 state->split_start++;
1490 if (state->split)
3713b4e3
JB		 1491 break;
1492 case 4:
1493 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1494 if (!nl_cmds)
2e161f78
JB		 1495 goto nla_put_failure;
1496
3713b4e3
JB		 1497 i = 0;
1498#define CMD(op, n) \
1499 do { \
1b8ec87a 1500 if (rdev->ops->op) { \
3713b4e3
JB		 1501 i++; \
1502 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1503 goto nla_put_failure; \
1504 } \
1505 } while (0)
1506
1507 CMD(add_virtual_intf, NEW_INTERFACE);
1508 CMD(change_virtual_intf, SET_INTERFACE);
1509 CMD(add_key, NEW_KEY);
1510 CMD(start_ap, START_AP);
1511 CMD(add_station, NEW_STATION);
1512 CMD(add_mpath, NEW_MPATH);
1513 CMD(update_mesh_config, SET_MESH_CONFIG);
1514 CMD(change_bss, SET_BSS);
1515 CMD(auth, AUTHENTICATE);
1516 CMD(assoc, ASSOCIATE);
1517 CMD(deauth, DEAUTHENTICATE);
1518 CMD(disassoc, DISASSOCIATE);
1519 CMD(join_ibss, JOIN_IBSS);
1520 CMD(join_mesh, JOIN_MESH);
1521 CMD(set_pmksa, SET_PMKSA);
1522 CMD(del_pmksa, DEL_PMKSA);
1523 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1524 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1525 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1526 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1527 CMD(mgmt_tx, FRAME);
1528 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1529 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1530 i++;
1531 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1532 goto nla_put_failure;
2e161f78 1533 }
1b8ec87a
ZG		 1534 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1535 rdev->ops->join_mesh) {
3713b4e3
JB		 1536 i++;
1537 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1538 goto nla_put_failure;
1539 }
1540 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1541 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1542 CMD(tdls_mgmt, TDLS_MGMT);
1543 CMD(tdls_oper, TDLS_OPER);
1544 }
1b8ec87a 1545 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1546 CMD(sched_scan_start, START_SCHED_SCAN);
1547 CMD(probe_client, PROBE_CLIENT);
1548 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1549 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1550 i++;
1551 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1552 goto nla_put_failure;
1553 }
1554 CMD(start_p2p_device, START_P2P_DEVICE);
1555 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1556#ifdef CONFIG_NL80211_TESTMODE
1557 CMD(testmode_cmd, TESTMODE);
1558#endif
86e8cf98 1559 if (state->split) {
5de17984
AS		 1560 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1561 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1562 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1563 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1564 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1565 if (rdev->wiphy.features &
1566 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1567 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1568 }
02df00eb 1569 /* add into the if now */
3713b4e3 1570#undef CMD
ff1b6e69 1571
1b8ec87a 1572 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1573 i++;
1574 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1575 goto nla_put_failure;
ff1b6e69
JB		 1576 }
1577
1b8ec87a 1578 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1579 i++;
1580 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1581 goto nla_put_failure;
1582 }
1583
1584 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1585 state->split_start++;
1586 if (state->split)
3713b4e3
JB		 1587 break;
1588 case 5:
1b8ec87a
ZG		 1589 if (rdev->ops->remain_on_channel &&
1590 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1591 nla_put_u32(msg,
1592 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1593 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1594 goto nla_put_failure;
1595
1b8ec87a 1596 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1597 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1598 goto nla_put_failure;
1599
1600 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1601 goto nla_put_failure;
86e8cf98
JB		 1602 state->split_start++;
1603 if (state->split)
3713b4e3
JB		 1604 break;
1605 case 6:
1606#ifdef CONFIG_PM
1b8ec87a 1607 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1608 goto nla_put_failure;
86e8cf98
JB		 1609 state->split_start++;
1610 if (state->split)
3713b4e3
JB		 1611 break;
1612#else
86e8cf98 1613 state->split_start++;
dfb89c56 1614#endif
3713b4e3
JB		 1615 case 7:
1616 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1617 rdev->wiphy.software_iftypes))
3713b4e3 1618 goto nla_put_failure;
ff1b6e69 1619
1b8ec87a 1620 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1621 state->split))
3713b4e3 1622 goto nla_put_failure;
7527a782 1623
86e8cf98
JB		 1624 state->split_start++;
1625 if (state->split)
3713b4e3
JB		 1626 break;
1627 case 8:
1b8ec87a 1628 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1629 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1630 rdev->wiphy.ap_sme_capa))
3713b4e3 1631 goto nla_put_failure;
7527a782 1632
1b8ec87a 1633 features = rdev->wiphy.features;
fe1abafd
JB		 1634 /*
1635 * We can only add the per-channel limit information if the
1636 * dump is split, otherwise it makes it too big. Therefore
1637 * only advertise it in that case.
1638 */
86e8cf98 1639 if (state->split)
fe1abafd
JB		 1640 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1641 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1642 goto nla_put_failure;
562a7480 1643
1b8ec87a 1644 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1645 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1646 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1647 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1648 goto nla_put_failure;
1f074bd8 1649
1b8ec87a
ZG		 1650 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1651 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1652 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1653 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1654 goto nla_put_failure;
7e7c8926 1655
3713b4e3
JB		 1656 /*
1657 * Any information below this point is only available to
1658 * applications that can deal with it being split. This
1659 * helps ensure that newly added capabilities don't break
1660 * older tools by overrunning their buffers.
1661 *
1662 * We still increment split_start so that in the split
1663 * case we'll continue with more data in the next round,
1664 * but break unconditionally so unsplit data stops here.
1665 */
86e8cf98 1666 state->split_start++;
3713b4e3
JB		 1667 break;
1668 case 9:
1b8ec87a 1669 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1670 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1671 rdev->wiphy.extended_capabilities_len,
1672 rdev->wiphy.extended_capabilities) ||
fe1abafd 1673 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1674 rdev->wiphy.extended_capabilities_len,
1675 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1676 goto nla_put_failure;
a50df0c4 1677
1b8ec87a 1678 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1679 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1680 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1681 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1682 goto nla_put_failure;
1683
be29b99a
AK		 1684 state->split_start++;
1685 break;
1686 case 10:
1b8ec87a 1687 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1688 goto nla_put_failure;
1689
1b8ec87a 1690 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1691 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1692 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1693 goto nla_put_failure;
b43504cf 1694
1b8ec87a 1695 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1696 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1697 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1698 goto nla_put_failure;
1699
ad7e718c
JB		 1700 state->split_start++;
1701 break;
1702 case 11:
1b8ec87a 1703 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1704 const struct nl80211_vendor_cmd_info *info;
1705 struct nlattr *nested;
1706
1707 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1708 if (!nested)
1709 goto nla_put_failure;
1710
1b8ec87a
ZG		 1711 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1712 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1713 if (nla_put(msg, i + 1, sizeof(*info), info))
1714 goto nla_put_failure;
1715 }
1716 nla_nest_end(msg, nested);
1717 }
1718
1b8ec87a 1719 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1720 const struct nl80211_vendor_cmd_info *info;
1721 struct nlattr *nested;
ad7e718c 1722
567ffc35
JB		 1723 nested = nla_nest_start(msg,
1724 NL80211_ATTR_VENDOR_EVENTS);
1725 if (!nested)
ad7e718c 1726 goto nla_put_failure;
567ffc35 1727
1b8ec87a
ZG		 1728 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1729 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1730 if (nla_put(msg, i + 1, sizeof(*info), info))
1731 goto nla_put_failure;
1732 }
1733 nla_nest_end(msg, nested);
1734 }
9a774c78
AO		 1735 state->split_start++;
1736 break;
1737 case 12:
1738 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1739 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1740 rdev->wiphy.max_num_csa_counters))
1741 goto nla_put_failure;
01e0daa4 1742
1bdd716c
AN		 1743 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1744 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1745 goto nla_put_failure;
1746
d75bb06b
GKS		 1747 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1748 sizeof(rdev->wiphy.ext_features),
1749 rdev->wiphy.ext_features))
1750 goto nla_put_failure;
1751
38de03d2
AS		 1752 if (rdev->wiphy.bss_select_support) {
1753 struct nlattr *nested;
1754 u32 bss_select_support = rdev->wiphy.bss_select_support;
1755
1756 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1757 if (!nested)
1758 goto nla_put_failure;
1759
1760 i = 0;
1761 while (bss_select_support) {
1762 if ((bss_select_support & 1) &&
1763 nla_put_flag(msg, i))
1764 goto nla_put_failure;
1765 i++;
1766 bss_select_support >>= 1;
1767 }
1768 nla_nest_end(msg, nested);
1769 }
1770
019ae3a9
KV		 1771 state->split_start++;
1772 break;
1773 case 13:
1774 if (rdev->wiphy.num_iftype_ext_capab &&
1775 rdev->wiphy.iftype_ext_capab) {
1776 struct nlattr *nested_ext_capab, *nested;
1777
1778 nested = nla_nest_start(msg,
1779 NL80211_ATTR_IFTYPE_EXT_CAPA);
1780 if (!nested)
1781 goto nla_put_failure;
1782
1783 for (i = state->capa_start;
1784 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1785 const struct wiphy_iftype_ext_capab *capab;
1786
1787 capab = &rdev->wiphy.iftype_ext_capab[i];
1788
1789 nested_ext_capab = nla_nest_start(msg, i);
1790 if (!nested_ext_capab ||
1791 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1792 capab->iftype) ||
1793 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1794 capab->extended_capabilities_len,
1795 capab->extended_capabilities) ||
1796 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1797 capab->extended_capabilities_len,
1798 capab->extended_capabilities_mask))
1799 goto nla_put_failure;
1800
1801 nla_nest_end(msg, nested_ext_capab);
1802 if (state->split)
1803 break;
1804 }
1805 nla_nest_end(msg, nested);
1806 if (i < rdev->wiphy.num_iftype_ext_capab) {
1807 state->capa_start = i + 1;
1808 break;
1809 }
1810 }
1811
3713b4e3 1812 /* done */
86e8cf98 1813 state->split_start = 0;
3713b4e3
JB		 1814 break;
1815 }
3bb20556 1816 finish:
053c095a
JB		 1817 genlmsg_end(msg, hdr);
1818 return 0;
55682965
JB		 1819
1820 nla_put_failure:
bc3ed28c
TG		 1821 genlmsg_cancel(msg, hdr);
1822 return -EMSGSIZE;
55682965
JB		 1823}
1824
86e8cf98
JB		 1825static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1826 struct netlink_callback *cb,
1827 struct nl80211_dump_wiphy_state *state)
1828{
1829 struct nlattr **tb = nl80211_fam.attrbuf;
1830 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1831 tb, nl80211_fam.maxattr, nl80211_policy);
1832 /* ignore parse errors for backward compatibility */
1833 if (ret)
1834 return 0;
1835
1836 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1837 if (tb[NL80211_ATTR_WIPHY])
1838 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1839 if (tb[NL80211_ATTR_WDEV])
1840 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1841 if (tb[NL80211_ATTR_IFINDEX]) {
1842 struct net_device *netdev;
1843 struct cfg80211_registered_device *rdev;
1844 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1845
7f2b8562 1846 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1847 if (!netdev)
1848 return -ENODEV;
1849 if (netdev->ieee80211_ptr) {
f26cbf40 1850 rdev = wiphy_to_rdev(
86e8cf98
JB		 1851 netdev->ieee80211_ptr->wiphy);
1852 state->filter_wiphy = rdev->wiphy_idx;
1853 }
86e8cf98
JB		 1854 }
1855
1856 return 0;
1857}
1858
55682965
JB		 1859static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1860{
645e77de 1861 int idx = 0, ret;
86e8cf98 1862 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1863 struct cfg80211_registered_device *rdev;
3a5a423b 1864
5fe231e8 1865 rtnl_lock();
86e8cf98
JB		 1866 if (!state) {
1867 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1868 if (!state) {
1869 rtnl_unlock();
86e8cf98 1870 return -ENOMEM;
3713b4e3 1871 }
86e8cf98
JB		 1872 state->filter_wiphy = -1;
1873 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1874 if (ret) {
1875 kfree(state);
1876 rtnl_unlock();
1877 return ret;
3713b4e3 1878 }
86e8cf98 1879 cb->args[0] = (long)state;
3713b4e3
JB		 1880 }
1881
1b8ec87a
ZG		 1882 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1883 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1884 continue;
86e8cf98 1885 if (++idx <= state->start)
55682965 1886 continue;
86e8cf98 1887 if (state->filter_wiphy != -1 &&
1b8ec87a 1888 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1889 continue;
1890 /* attempt to fit multiple wiphy data chunks into the skb */
1891 do {
3bb20556
JB		 1892 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1893 skb,
3713b4e3
JB		 1894 NETLINK_CB(cb->skb).portid,
1895 cb->nlh->nlmsg_seq,
86e8cf98 1896 NLM_F_MULTI, state);
3713b4e3
JB		 1897 if (ret < 0) {
1898 /*
1899 * If sending the wiphy data didn't fit (ENOBUFS
1900 * or EMSGSIZE returned), this SKB is still
1901 * empty (so it's not too big because another
1902 * wiphy dataset is already in the skb) and
1903 * we've not tried to adjust the dump allocation
1904 * yet ... then adjust the alloc size to be
1905 * bigger, and return 1 but with the empty skb.
1906 * This results in an empty message being RX'ed
1907 * in userspace, but that is ignored.
1908 *
1909 * We can then retry with the larger buffer.
1910 */
1911 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1912 !skb->len && !state->split &&
3713b4e3
JB		 1913 cb->min_dump_alloc < 4096) {
1914 cb->min_dump_alloc = 4096;
f12cb289 1915 state->split_start = 0;
d98cae64 1916 rtnl_unlock();
3713b4e3
JB		 1917 return 1;
1918 }
1919 idx--;
1920 break;
645e77de 1921 }
86e8cf98 1922 } while (state->split_start > 0);
3713b4e3 1923 break;
55682965 1924 }
5fe231e8 1925 rtnl_unlock();
55682965 1926
86e8cf98 1927 state->start = idx;
55682965
JB		 1928
1929 return skb->len;
1930}
1931
86e8cf98
JB		 1932static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1933{
1934 kfree((void *)cb->args[0]);
1935 return 0;
1936}
1937
55682965
JB		 1938static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1939{
1940 struct sk_buff *msg;
1b8ec87a 1941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1942 struct nl80211_dump_wiphy_state state = {};
55682965 1943
645e77de 1944 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1945 if (!msg)
4c476991 1946 return -ENOMEM;
55682965 1947
3bb20556
JB		 1948 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1949 info->snd_portid, info->snd_seq, 0,
86e8cf98 1950 &state) < 0) {
4c476991
JB		 1951 nlmsg_free(msg);
1952 return -ENOBUFS;
1953 }
55682965 1954
134e6375 1955 return genlmsg_reply(msg, info);
55682965
JB		 1956}
1957
31888487
JM		 1958static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1959 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1960 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1961 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1962 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1963 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1964};
1965
1966static int parse_txq_params(struct nlattr *tb[],
1967 struct ieee80211_txq_params *txq_params)
1968{
a3304b0a 1969 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1970 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1971 !tb[NL80211_TXQ_ATTR_AIFS])
1972 return -EINVAL;
1973
a3304b0a 1974 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1975 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1976 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1977 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1978 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1979
a3304b0a
JB		 1980 if (txq_params->ac >= NL80211_NUM_ACS)
1981 return -EINVAL;
1982
31888487
JM		 1983 return 0;
1984}
1985
f444de05
JB		 1986static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1987{
1988 /*
cc1d2806
JB		 1989 * You can only set the channel explicitly for WDS interfaces,
1990 * all others have their channel managed via their respective
1991 * "establish a connection" command (connect, join, ...)
1992 *
1993 * For AP/GO and mesh mode, the channel can be set with the
1994 * channel userspace API, but is only stored and passed to the
1995 * low-level driver when the AP starts or the mesh is joined.
1996 * This is for backward compatibility, userspace can also give
1997 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1998 *
1999 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 2000 * whatever else is going on, so they have their own special
2001 * operation to set the monitor channel if possible.
f444de05
JB		 2002 */
2003 return !wdev ||
2004 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 2005 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 2006 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2007 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 2008}
2009
683b6d3b
JB		 2010static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2011 struct genl_info *info,
2012 struct cfg80211_chan_def *chandef)
2013{
dbeca2ea 2014 u32 control_freq;
683b6d3b
JB		 2015
2016 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2017 return -EINVAL;
2018
2019 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2020
2021 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 2022 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2023 chandef->center_freq1 = control_freq;
2024 chandef->center_freq2 = 0;
683b6d3b
JB		 2025
2026 /* Primary channel not allowed */
2027 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2028 return -EINVAL;
2029
3d9d1d66
JB		 2030 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2031 enum nl80211_channel_type chantype;
2032
2033 chantype = nla_get_u32(
2034 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2035
2036 switch (chantype) {
2037 case NL80211_CHAN_NO_HT:
2038 case NL80211_CHAN_HT20:
2039 case NL80211_CHAN_HT40PLUS:
2040 case NL80211_CHAN_HT40MINUS:
2041 cfg80211_chandef_create(chandef, chandef->chan,
2042 chantype);
2043 break;
2044 default:
2045 return -EINVAL;
2046 }
2047 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2048 chandef->width =
2049 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2050 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2051 chandef->center_freq1 =
2052 nla_get_u32(
2053 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2054 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2055 chandef->center_freq2 =
2056 nla_get_u32(
2057 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2058 }
2059
9f5e8f6e 2060 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 2061 return -EINVAL;
2062
9f5e8f6e
JB		 2063 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2064 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 2065 return -EINVAL;
2066
2f301ab2
SW		 2067 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2068 chandef->width == NL80211_CHAN_WIDTH_10) &&
2069 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2070 return -EINVAL;
2071
683b6d3b
JB		 2072 return 0;
2073}
2074
f444de05 2075static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 2076 struct net_device *dev,
f444de05
JB		 2077 struct genl_info *info)
2078{
683b6d3b 2079 struct cfg80211_chan_def chandef;
f444de05 2080 int result;
e8c9bd5b 2081 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2082 struct wireless_dev *wdev = NULL;
e8c9bd5b 2083
e16821bc
JM		 2084 if (dev)
2085 wdev = dev->ieee80211_ptr;
f444de05
JB		 2086 if (!nl80211_can_set_dev_channel(wdev))
2087 return -EOPNOTSUPP;
e16821bc
JM		 2088 if (wdev)
2089 iftype = wdev->iftype;
f444de05 2090
683b6d3b
JB		 2091 result = nl80211_parse_chandef(rdev, info, &chandef);
2092 if (result)
2093 return result;
f444de05 2094
e8c9bd5b 2095 switch (iftype) {
aa430da4
JB		 2096 case NL80211_IFTYPE_AP:
2097 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2098 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2099 iftype)) {
aa430da4
JB		 2100 result = -EINVAL;
2101 break;
2102 }
e16821bc
JM		 2103 if (wdev->beacon_interval) {
2104 if (!dev || !rdev->ops->set_ap_chanwidth ||
2105 !(rdev->wiphy.features &
2106 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2107 result = -EBUSY;
2108 break;
2109 }
2110
2111 /* Only allow dynamic channel width changes */
2112 if (chandef.chan != wdev->preset_chandef.chan) {
2113 result = -EBUSY;
2114 break;
2115 }
2116 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2117 if (result)
2118 break;
2119 }
683b6d3b 2120 wdev->preset_chandef = chandef;
aa430da4
JB		 2121 result = 0;
2122 break;
cc1d2806 2123 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2124 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2125 break;
e8c9bd5b 2126 case NL80211_IFTYPE_MONITOR:
683b6d3b 2127 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2128 break;
aa430da4 2129 default:
e8c9bd5b 2130 result = -EINVAL;
f444de05 2131 }
f444de05
JB		 2132
2133 return result;
2134}
2135
2136static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2137{
4c476991
JB		 2138 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2139 struct net_device *netdev = info->user_ptr[1];
f444de05 2140
e16821bc 2141 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2142}
2143
e8347eba
BJ		 2144static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2145{
43b19952
JB		 2146 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2147 struct net_device *dev = info->user_ptr[1];
2148 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2149 const u8 *bssid;
e8347eba
BJ		 2150
2151 if (!info->attrs[NL80211_ATTR_MAC])
2152 return -EINVAL;
2153
43b19952
JB		 2154 if (netif_running(dev))
2155 return -EBUSY;
e8347eba 2156
43b19952
JB		 2157 if (!rdev->ops->set_wds_peer)
2158 return -EOPNOTSUPP;
e8347eba 2159
43b19952
JB		 2160 if (wdev->iftype != NL80211_IFTYPE_WDS)
2161 return -EOPNOTSUPP;
e8347eba
BJ		 2162
2163 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2164 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2165}
2166
55682965
JB		 2167static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2168{
2169 struct cfg80211_registered_device *rdev;
f444de05
JB		 2170 struct net_device *netdev = NULL;
2171 struct wireless_dev *wdev;
a1e567c8 2172 int result = 0, rem_txq_params = 0;
31888487 2173 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2174 u32 changed;
2175 u8 retry_short = 0, retry_long = 0;
2176 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2177 u8 coverage_class = 0;
55682965 2178
5fe231e8
JB		 2179 ASSERT_RTNL();
2180
f444de05
JB		 2181 /*
2182 * Try to find the wiphy and netdev. Normally this
2183 * function shouldn't need the netdev, but this is
2184 * done for backward compatibility -- previously
2185 * setting the channel was done per wiphy, but now
2186 * it is per netdev. Previous userland like hostapd
2187 * also passed a netdev to set_wiphy, so that it is
2188 * possible to let that go to the right netdev!
2189 */
4bbf4d56 2190
f444de05
JB		 2191 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2192 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2193
7f2b8562 2194 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2195 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2196 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2197 else
f444de05 2198 netdev = NULL;
4bbf4d56
JB		 2199 }
2200
f444de05 2201 if (!netdev) {
878d9ec7
JB		 2202 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2203 info->attrs);
5fe231e8 2204 if (IS_ERR(rdev))
4c476991 2205 return PTR_ERR(rdev);
f444de05
JB		 2206 wdev = NULL;
2207 netdev = NULL;
2208 result = 0;
71fe96bf 2209 } else
f444de05 2210 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2211
2212 /*
2213 * end workaround code, by now the rdev is available
2214 * and locked, and wdev may or may not be NULL.
2215 */
4bbf4d56
JB		 2216
2217 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2218 result = cfg80211_dev_rename(
2219 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2220
4bbf4d56 2221 if (result)
7f2b8562 2222 return result;
31888487
JM		 2223
2224 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2225 struct ieee80211_txq_params txq_params;
2226 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2227
7f2b8562
YX		 2228 if (!rdev->ops->set_txq_params)
2229 return -EOPNOTSUPP;
31888487 2230
7f2b8562
YX		 2231 if (!netdev)
2232 return -EINVAL;
f70f01c2 2233
133a3ff2 2234 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2235 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2236 return -EINVAL;
133a3ff2 2237
7f2b8562
YX		 2238 if (!netif_running(netdev))
2239 return -ENETDOWN;
2b5f8b0b 2240
31888487
JM		 2241 nla_for_each_nested(nl_txq_params,
2242 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2243 rem_txq_params) {
ae811e21
JB		 2244 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2245 nla_data(nl_txq_params),
2246 nla_len(nl_txq_params),
2247 txq_params_policy);
2248 if (result)
2249 return result;
31888487
JM		 2250 result = parse_txq_params(tb, &txq_params);
2251 if (result)
7f2b8562 2252 return result;
31888487 2253
e35e4d28
HG		 2254 result = rdev_set_txq_params(rdev, netdev,
2255 &txq_params);
31888487 2256 if (result)
7f2b8562 2257 return result;
31888487
JM		 2258 }
2259 }
55682965 2260
72bdcf34 2261 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2262 result = __nl80211_set_channel(
2263 rdev,
2264 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2265 info);
72bdcf34 2266 if (result)
7f2b8562 2267 return result;
72bdcf34
JM		 2268 }
2269
98d2ff8b 2270 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2271 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2272 enum nl80211_tx_power_setting type;
2273 int idx, mbm = 0;
2274
c8442118
JB		 2275 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2276 txp_wdev = NULL;
2277
7f2b8562
YX		 2278 if (!rdev->ops->set_tx_power)
2279 return -EOPNOTSUPP;
98d2ff8b
JO		 2280
2281 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2282 type = nla_get_u32(info->attrs[idx]);
2283
2284 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2285 (type != NL80211_TX_POWER_AUTOMATIC))
2286 return -EINVAL;
98d2ff8b
JO		 2287
2288 if (type != NL80211_TX_POWER_AUTOMATIC) {
2289 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2290 mbm = nla_get_u32(info->attrs[idx]);
2291 }
2292
c8442118 2293 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2294 if (result)
7f2b8562 2295 return result;
98d2ff8b
JO		 2296 }
2297
afe0cbf8
BR		 2298 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2299 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2300 u32 tx_ant, rx_ant;
7a087e74 2301
7f531e03
BR		 2302 if ((!rdev->wiphy.available_antennas_tx &&
2303 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2304 !rdev->ops->set_antenna)
2305 return -EOPNOTSUPP;
afe0cbf8
BR		 2306
2307 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2308 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2309
a7ffac95 2310 /* reject antenna configurations which don't match the
7f531e03
BR		 2311 * available antenna masks, except for the "all" mask */
2312 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2313 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2314 return -EINVAL;
a7ffac95 2315
7f531e03
BR		 2316 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2317 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2318
e35e4d28 2319 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2320 if (result)
7f2b8562 2321 return result;
afe0cbf8
BR		 2322 }
2323
b9a5f8ca
JM		 2324 changed = 0;
2325
2326 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2327 retry_short = nla_get_u8(
2328 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2329 if (retry_short == 0)
2330 return -EINVAL;
2331
b9a5f8ca
JM		 2332 changed |= WIPHY_PARAM_RETRY_SHORT;
2333 }
2334
2335 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2336 retry_long = nla_get_u8(
2337 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2338 if (retry_long == 0)
2339 return -EINVAL;
2340
b9a5f8ca
JM		 2341 changed |= WIPHY_PARAM_RETRY_LONG;
2342 }
2343
2344 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2345 frag_threshold = nla_get_u32(
2346 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2347 if (frag_threshold < 256)
2348 return -EINVAL;
2349
b9a5f8ca
JM		 2350 if (frag_threshold != (u32) -1) {
2351 /*
2352 * Fragments (apart from the last one) are required to
2353 * have even length. Make the fragmentation code
2354 * simpler by stripping LSB should someone try to use
2355 * odd threshold value.
2356 */
2357 frag_threshold &= ~0x1;
2358 }
2359 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2360 }
2361
2362 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2363 rts_threshold = nla_get_u32(
2364 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2365 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2366 }
2367
81077e82 2368 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2369 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2370 return -EINVAL;
2371
81077e82
LT		 2372 coverage_class = nla_get_u8(
2373 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2374 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2375 }
2376
3057dbfd
LB		 2377 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2378 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2379 return -EOPNOTSUPP;
2380
2381 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2382 }
2383
b9a5f8ca
JM		 2384 if (changed) {
2385 u8 old_retry_short, old_retry_long;
2386 u32 old_frag_threshold, old_rts_threshold;
81077e82 2387 u8 old_coverage_class;
b9a5f8ca 2388
7f2b8562
YX		 2389 if (!rdev->ops->set_wiphy_params)
2390 return -EOPNOTSUPP;
b9a5f8ca
JM		 2391
2392 old_retry_short = rdev->wiphy.retry_short;
2393 old_retry_long = rdev->wiphy.retry_long;
2394 old_frag_threshold = rdev->wiphy.frag_threshold;
2395 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2396 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2397
2398 if (changed & WIPHY_PARAM_RETRY_SHORT)
2399 rdev->wiphy.retry_short = retry_short;
2400 if (changed & WIPHY_PARAM_RETRY_LONG)
2401 rdev->wiphy.retry_long = retry_long;
2402 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2403 rdev->wiphy.frag_threshold = frag_threshold;
2404 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2405 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2406 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2407 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2408
e35e4d28 2409 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2410 if (result) {
2411 rdev->wiphy.retry_short = old_retry_short;
2412 rdev->wiphy.retry_long = old_retry_long;
2413 rdev->wiphy.frag_threshold = old_frag_threshold;
2414 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2415 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2416 return result;
b9a5f8ca
JM		 2417 }
2418 }
7f2b8562 2419 return 0;
55682965
JB		 2420}
2421
71bbc994
JB		 2422static inline u64 wdev_id(struct wireless_dev *wdev)
2423{
2424 return (u64)wdev->identifier |
f26cbf40 2425 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2426}
55682965 2427
683b6d3b 2428static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2429 const struct cfg80211_chan_def *chandef)
683b6d3b 2430{
601555cd
JB		 2431 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2432 return -EINVAL;
3d9d1d66 2433
683b6d3b
JB		 2434 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2435 chandef->chan->center_freq))
2436 return -ENOBUFS;
3d9d1d66
JB		 2437 switch (chandef->width) {
2438 case NL80211_CHAN_WIDTH_20_NOHT:
2439 case NL80211_CHAN_WIDTH_20:
2440 case NL80211_CHAN_WIDTH_40:
2441 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2442 cfg80211_get_chandef_type(chandef)))
2443 return -ENOBUFS;
2444 break;
2445 default:
2446 break;
2447 }
2448 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2449 return -ENOBUFS;
2450 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2451 return -ENOBUFS;
2452 if (chandef->center_freq2 &&
2453 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2454 return -ENOBUFS;
2455 return 0;
2456}
2457
15e47304 2458static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2459 struct cfg80211_registered_device *rdev,
8f894be2 2460 struct wireless_dev *wdev, bool removal)
55682965 2461{
72fb2abc 2462 struct net_device *dev = wdev->netdev;
8f894be2 2463 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2464 void *hdr;
2465
8f894be2
TB		 2466 if (removal)
2467 cmd = NL80211_CMD_DEL_INTERFACE;
2468
2469 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2470 if (!hdr)
2471 return -1;
2472
72fb2abc
JB		 2473 if (dev &&
2474 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2475 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2476 goto nla_put_failure;
2477
2478 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2479 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2dad624e
ND		 2480 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2481 NL80211_ATTR_PAD) ||
98104fde 2482 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2483 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2484 rdev->devlist_generation ^
2485 (cfg80211_rdev_list_generation << 2)))
2486 goto nla_put_failure;
f5ea9120 2487
5b7ccaf3 2488 if (rdev->ops->get_channel) {
683b6d3b
JB		 2489 int ret;
2490 struct cfg80211_chan_def chandef;
2491
2492 ret = rdev_get_channel(rdev, wdev, &chandef);
2493 if (ret == 0) {
2494 if (nl80211_send_chandef(msg, &chandef))
2495 goto nla_put_failure;
2496 }
d91df0e3
PF		 2497 }
2498
d55d0d59
RM		 2499 if (rdev->ops->get_tx_power) {
2500 int dbm, ret;
2501
2502 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2503 if (ret == 0 &&
2504 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2505 DBM_TO_MBM(dbm)))
2506 goto nla_put_failure;
2507 }
2508
b84e7a05
AQ		 2509 if (wdev->ssid_len) {
2510 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2511 goto nla_put_failure;
2512 }
2513
053c095a
JB		 2514 genlmsg_end(msg, hdr);
2515 return 0;
55682965
JB		 2516
2517 nla_put_failure:
bc3ed28c
TG		 2518 genlmsg_cancel(msg, hdr);
2519 return -EMSGSIZE;
55682965
JB		 2520}
2521
2522static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2523{
2524 int wp_idx = 0;
2525 int if_idx = 0;
2526 int wp_start = cb->args[0];
2527 int if_start = cb->args[1];
f5ea9120 2528 struct cfg80211_registered_device *rdev;
55682965
JB		 2529 struct wireless_dev *wdev;
2530
5fe231e8 2531 rtnl_lock();
f5ea9120
JB		 2532 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2533 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2534 continue;
bba95fef
JB		 2535 if (wp_idx < wp_start) {
2536 wp_idx++;
55682965 2537 continue;
bba95fef 2538 }
55682965
JB		 2539 if_idx = 0;
2540
53873f13 2541 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
bba95fef
JB		 2542 if (if_idx < if_start) {
2543 if_idx++;
55682965 2544 continue;
bba95fef 2545 }
15e47304 2546 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2547 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2548 rdev, wdev, false) < 0) {
bba95fef
JB		 2549 goto out;
2550 }
2551 if_idx++;
55682965 2552 }
bba95fef
JB		 2553
2554 wp_idx++;
55682965 2555 }
bba95fef 2556 out:
5fe231e8 2557 rtnl_unlock();
55682965
JB		 2558
2559 cb->args[0] = wp_idx;
2560 cb->args[1] = if_idx;
2561
2562 return skb->len;
2563}
2564
2565static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2566{
2567 struct sk_buff *msg;
1b8ec87a 2568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2569 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2570
fd2120ca 2571 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2572 if (!msg)
4c476991 2573 return -ENOMEM;
55682965 2574
15e47304 2575 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2576 rdev, wdev, false) < 0) {
4c476991
JB		 2577 nlmsg_free(msg);
2578 return -ENOBUFS;
2579 }
55682965 2580
134e6375 2581 return genlmsg_reply(msg, info);
55682965
JB		 2582}
2583
66f7ac50
MW		 2584static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2585 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2586 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2587 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2588 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2589 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2590 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2591};
2592
2593static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2594{
2595 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2596 int flag;
2597
2598 *mntrflags = 0;
2599
2600 if (!nla)
2601 return -EINVAL;
2602
2603 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2604 nla, mntr_flags_policy))
2605 return -EINVAL;
2606
2607 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2608 if (flags[flag])
2609 *mntrflags |= (1<<flag);
2610
2611 return 0;
2612}
2613
9bc383de 2614static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2615 struct net_device *netdev, u8 use_4addr,
2616 enum nl80211_iftype iftype)
9bc383de 2617{
ad4bb6f8 2618 if (!use_4addr) {
f350a0a8 2619 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2620 return -EBUSY;
9bc383de 2621 return 0;
ad4bb6f8 2622 }
9bc383de
JB		 2623
2624 switch (iftype) {
2625 case NL80211_IFTYPE_AP_VLAN:
2626 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2627 return 0;
2628 break;
2629 case NL80211_IFTYPE_STATION:
2630 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2631 return 0;
2632 break;
2633 default:
2634 break;
2635 }
2636
2637 return -EOPNOTSUPP;
2638}
2639
55682965
JB		 2640static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2641{
4c476991 2642 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2643 struct vif_params params;
e36d56b6 2644 int err;
04a773ad 2645 enum nl80211_iftype otype, ntype;
4c476991 2646 struct net_device *dev = info->user_ptr[1];
92ffe055 2647 u32 _flags, *flags = NULL;
ac7f9cfa 2648 bool change = false;
55682965 2649
2ec600d6
LCC		 2650 memset(&params, 0, sizeof(params));
2651
04a773ad 2652 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2653
723b038d 2654 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2655 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2656 if (otype != ntype)
ac7f9cfa 2657 change = true;
4c476991
JB		 2658 if (ntype > NL80211_IFTYPE_MAX)
2659 return -EINVAL;
723b038d
JB		 2660 }
2661
92ffe055 2662 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2663 struct wireless_dev *wdev = dev->ieee80211_ptr;
2664
4c476991
JB		 2665 if (ntype != NL80211_IFTYPE_MESH_POINT)
2666 return -EINVAL;
29cbe68c
JB		 2667 if (netif_running(dev))
2668 return -EBUSY;
2669
2670 wdev_lock(wdev);
2671 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2672 IEEE80211_MAX_MESH_ID_LEN);
2673 wdev->mesh_id_up_len =
2674 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2675 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2676 wdev->mesh_id_up_len);
2677 wdev_unlock(wdev);
2ec600d6
LCC		 2678 }
2679
8b787643
FF		 2680 if (info->attrs[NL80211_ATTR_4ADDR]) {
2681 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2682 change = true;
ad4bb6f8 2683 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2684 if (err)
4c476991 2685 return err;
8b787643
FF		 2686 } else {
2687 params.use_4addr = -1;
2688 }
2689
92ffe055 2690 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2691 if (ntype != NL80211_IFTYPE_MONITOR)
2692 return -EINVAL;
92ffe055
JB		 2693 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2694 &_flags);
ac7f9cfa 2695 if (err)
4c476991 2696 return err;
ac7f9cfa
JB		 2697
2698 flags = &_flags;
2699 change = true;
92ffe055 2700 }
3b85875a 2701
c6e6a0c8
AE		 2702 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2703 const u8 *mumimo_groups;
2704 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2705
2706 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2707 return -EOPNOTSUPP;
2708
2709 mumimo_groups =
2710 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2711
2712 /* bits 0 and 63 are reserved and must be zero */
2713 if ((mumimo_groups[0] & BIT(7)) ||
2714 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(0)))
2715 return -EINVAL;
2716
2717 memcpy(params.vht_mumimo_groups, mumimo_groups,
2718 VHT_MUMIMO_GROUPS_DATA_LEN);
2719 change = true;
2720 }
2721
2722 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2723 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2724
2725 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2726 return -EOPNOTSUPP;
2727
2728 nla_memcpy(params.macaddr,
2729 info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR],
2730 ETH_ALEN);
2731 change = true;
2732 }
2733
18003297 2734 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2735 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2736 return -EOPNOTSUPP;
2737
ac7f9cfa 2738 if (change)
3d54d255 2739 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2740 else
2741 err = 0;
60719ffd 2742
9bc383de
JB		 2743 if (!err && params.use_4addr != -1)
2744 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2745
55682965
JB		 2746 return err;
2747}
2748
2749static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2750{
4c476991 2751 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2752 struct vif_params params;
84efbb84 2753 struct wireless_dev *wdev;
8f894be2 2754 struct sk_buff *msg, *event;
55682965
JB		 2755 int err;
2756 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2757 u32 flags;
55682965 2758
78f22b6a
JB		 2759 /* to avoid failing a new interface creation due to pending removal */
2760 cfg80211_destroy_ifaces(rdev);
2761
2ec600d6
LCC		 2762 memset(&params, 0, sizeof(params));
2763
55682965
JB		 2764 if (!info->attrs[NL80211_ATTR_IFNAME])
2765 return -EINVAL;
2766
2767 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2768 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2769 if (type > NL80211_IFTYPE_MAX)
2770 return -EINVAL;
2771 }
2772
79c97e97 2773 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2774 !(rdev->wiphy.interface_modes & (1 << type)))
2775 return -EOPNOTSUPP;
55682965 2776
e8f479b1
BG		 2777 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2778 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2779 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2780 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2781 ETH_ALEN);
2782 if (!is_valid_ether_addr(params.macaddr))
2783 return -EADDRNOTAVAIL;
2784 }
2785
9bc383de 2786 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2787 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2788 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2789 if (err)
4c476991 2790 return err;
9bc383de 2791 }
8b787643 2792
66f7ac50
MW		 2793 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2794 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2795 &flags);
e057d3c3 2796
18003297 2797 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2798 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2799 return -EOPNOTSUPP;
2800
a18c7192
JB		 2801 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2802 if (!msg)
2803 return -ENOMEM;
2804
e35e4d28
HG		 2805 wdev = rdev_add_virtual_intf(rdev,
2806 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2807 NET_NAME_USER, type, err ? NULL : &flags,
2808 &params);
d687cbb7
RM		 2809 if (WARN_ON(!wdev)) {
2810 nlmsg_free(msg);
2811 return -EPROTO;
2812 } else if (IS_ERR(wdev)) {
1c90f9d4 2813 nlmsg_free(msg);
84efbb84 2814 return PTR_ERR(wdev);
1c90f9d4 2815 }
2ec600d6 2816
18e5ca65 2817 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2818 wdev->owner_nlportid = info->snd_portid;
2819
98104fde
JB		 2820 switch (type) {
2821 case NL80211_IFTYPE_MESH_POINT:
2822 if (!info->attrs[NL80211_ATTR_MESH_ID])
2823 break;
29cbe68c
JB		 2824 wdev_lock(wdev);
2825 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2826 IEEE80211_MAX_MESH_ID_LEN);
2827 wdev->mesh_id_up_len =
2828 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2829 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2830 wdev->mesh_id_up_len);
2831 wdev_unlock(wdev);
98104fde
JB		 2832 break;
2833 case NL80211_IFTYPE_P2P_DEVICE:
2834 /*
2835 * P2P Device doesn't have a netdev, so doesn't go
2836 * through the netdev notifier and must be added here
2837 */
2838 mutex_init(&wdev->mtx);
2839 INIT_LIST_HEAD(&wdev->event_list);
2840 spin_lock_init(&wdev->event_lock);
2841 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2842 spin_lock_init(&wdev->mgmt_registrations_lock);
2843
98104fde 2844 wdev->identifier = ++rdev->wdev_id;
53873f13 2845 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
98104fde 2846 rdev->devlist_generation++;
98104fde
JB		 2847 break;
2848 default:
2849 break;
29cbe68c
JB		 2850 }
2851
15e47304 2852 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2853 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2854 nlmsg_free(msg);
2855 return -ENOBUFS;
2856 }
2857
8f894be2
TB		 2858 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2859 if (event) {
2860 if (nl80211_send_iface(event, 0, 0, 0,
2861 rdev, wdev, false) < 0) {
2862 nlmsg_free(event);
2863 goto out;
2864 }
2865
2866 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2867 event, 0, NL80211_MCGRP_CONFIG,
2868 GFP_KERNEL);
2869 }
2870
2871out:
1c90f9d4 2872 return genlmsg_reply(msg, info);
55682965
JB		 2873}
2874
2875static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2876{
4c476991 2877 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2878 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2879 struct sk_buff *msg;
2880 int status;
55682965 2881
4c476991
JB		 2882 if (!rdev->ops->del_virtual_intf)
2883 return -EOPNOTSUPP;
55682965 2884
8f894be2
TB		 2885 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2886 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2887 nlmsg_free(msg);
2888 msg = NULL;
2889 }
2890
84efbb84
JB		 2891 /*
2892 * If we remove a wireless device without a netdev then clear
2893 * user_ptr[1] so that nl80211_post_doit won't dereference it
2894 * to check if it needs to do dev_put(). Otherwise it crashes
2895 * since the wdev has been freed, unlike with a netdev where
2896 * we need the dev_put() for the netdev to really be freed.
2897 */
2898 if (!wdev->netdev)
2899 info->user_ptr[1] = NULL;
2900
8f894be2
TB		 2901 status = rdev_del_virtual_intf(rdev, wdev);
2902 if (status >= 0 && msg)
2903 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2904 msg, 0, NL80211_MCGRP_CONFIG,
2905 GFP_KERNEL);
2906 else
2907 nlmsg_free(msg);
2908
2909 return status;
55682965
JB		 2910}
2911
1d9d9213
SW		 2912static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2913{
2914 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2915 struct net_device *dev = info->user_ptr[1];
2916 u16 noack_map;
2917
2918 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2919 return -EINVAL;
2920
2921 if (!rdev->ops->set_noack_map)
2922 return -EOPNOTSUPP;
2923
2924 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2925
e35e4d28 2926 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2927}
2928
41ade00f
JB		 2929struct get_key_cookie {
2930 struct sk_buff *msg;
2931 int error;
b9454e83 2932 int idx;
41ade00f
JB		 2933};
2934
2935static void get_key_callback(void *c, struct key_params *params)
2936{
b9454e83 2937 struct nlattr *key;
41ade00f
JB		 2938 struct get_key_cookie *cookie = c;
2939
9360ffd1
DM		 2940 if ((params->key &&
2941 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2942 params->key_len, params->key)) ||
2943 (params->seq &&
2944 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2945 params->seq_len, params->seq)) ||
2946 (params->cipher &&
2947 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2948 params->cipher)))
2949 goto nla_put_failure;
41ade00f 2950
b9454e83
JB		 2951 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2952 if (!key)
2953 goto nla_put_failure;
2954
9360ffd1
DM		 2955 if ((params->key &&
2956 nla_put(cookie->msg, NL80211_KEY_DATA,
2957 params->key_len, params->key)) ||
2958 (params->seq &&
2959 nla_put(cookie->msg, NL80211_KEY_SEQ,
2960 params->seq_len, params->seq)) ||
2961 (params->cipher &&
2962 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2963 params->cipher)))
2964 goto nla_put_failure;
b9454e83 2965
9360ffd1
DM		 2966 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2967 goto nla_put_failure;
b9454e83
JB		 2968
2969 nla_nest_end(cookie->msg, key);
2970
41ade00f
JB		 2971 return;
2972 nla_put_failure:
2973 cookie->error = 1;
2974}
2975
2976static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2977{
4c476991 2978 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2979 int err;
4c476991 2980 struct net_device *dev = info->user_ptr[1];
41ade00f 2981 u8 key_idx = 0;
e31b8213
JB		 2982 const u8 *mac_addr = NULL;
2983 bool pairwise;
41ade00f
JB		 2984 struct get_key_cookie cookie = {
2985 .error = 0,
2986 };
2987 void *hdr;
2988 struct sk_buff *msg;
2989
2990 if (info->attrs[NL80211_ATTR_KEY_IDX])
2991 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2992
3cfcf6ac 2993 if (key_idx > 5)
41ade00f
JB		 2994 return -EINVAL;
2995
2996 if (info->attrs[NL80211_ATTR_MAC])
2997 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2998
e31b8213
JB		 2999 pairwise = !!mac_addr;
3000 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3001 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
7a087e74 3002
e31b8213
JB		 3003 if (kt >= NUM_NL80211_KEYTYPES)
3004 return -EINVAL;
3005 if (kt != NL80211_KEYTYPE_GROUP &&
3006 kt != NL80211_KEYTYPE_PAIRWISE)
3007 return -EINVAL;
3008 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3009 }
3010
4c476991
JB		 3011 if (!rdev->ops->get_key)
3012 return -EOPNOTSUPP;
41ade00f 3013
0fa7b391
JB		 3014 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3015 return -ENOENT;
3016
fd2120ca 3017 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3018 if (!msg)
3019 return -ENOMEM;
41ade00f 3020
15e47304 3021 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 3022 NL80211_CMD_NEW_KEY);
cb35fba3 3023 if (!hdr)
9fe271af 3024 goto nla_put_failure;
41ade00f
JB		 3025
3026 cookie.msg = msg;
b9454e83 3027 cookie.idx = key_idx;
41ade00f 3028
9360ffd1
DM		 3029 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3030 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3031 goto nla_put_failure;
3032 if (mac_addr &&
3033 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3034 goto nla_put_failure;
41ade00f 3035
e35e4d28
HG		 3036 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3037 get_key_callback);
41ade00f
JB		 3038
3039 if (err)
6c95e2a2 3040 goto free_msg;
41ade00f
JB		 3041
3042 if (cookie.error)
3043 goto nla_put_failure;
3044
3045 genlmsg_end(msg, hdr);
4c476991 3046 return genlmsg_reply(msg, info);
41ade00f
JB		 3047
3048 nla_put_failure:
3049 err = -ENOBUFS;
6c95e2a2 3050 free_msg:
41ade00f 3051 nlmsg_free(msg);
41ade00f
JB		 3052 return err;
3053}
3054
3055static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3056{
4c476991 3057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 3058 struct key_parse key;
41ade00f 3059 int err;
4c476991 3060 struct net_device *dev = info->user_ptr[1];
41ade00f 3061
b9454e83
JB		 3062 err = nl80211_parse_key(info, &key);
3063 if (err)
3064 return err;
41ade00f 3065
b9454e83 3066 if (key.idx < 0)
41ade00f
JB		 3067 return -EINVAL;
3068
b9454e83
JB		 3069 /* only support setting default key */
3070 if (!key.def && !key.defmgmt)
41ade00f
JB		 3071 return -EINVAL;
3072
dbd2fd65 3073 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 3074
dbd2fd65
JB		 3075 if (key.def) {
3076 if (!rdev->ops->set_default_key) {
3077 err = -EOPNOTSUPP;
3078 goto out;
3079 }
41ade00f 3080
dbd2fd65
JB		 3081 err = nl80211_key_allowed(dev->ieee80211_ptr);
3082 if (err)
3083 goto out;
3084
e35e4d28 3085 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 3086 key.def_uni, key.def_multi);
3087
3088 if (err)
3089 goto out;
fffd0934 3090
3d23e349 3091#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 3092 dev->ieee80211_ptr->wext.default_key = key.idx;
3093#endif
3094 } else {
3095 if (key.def_uni || !key.def_multi) {
3096 err = -EINVAL;
3097 goto out;
3098 }
3099
3100 if (!rdev->ops->set_default_mgmt_key) {
3101 err = -EOPNOTSUPP;
3102 goto out;
3103 }
3104
3105 err = nl80211_key_allowed(dev->ieee80211_ptr);
3106 if (err)
3107 goto out;
3108
e35e4d28 3109 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 3110 if (err)
3111 goto out;
3112
3113#ifdef CONFIG_CFG80211_WEXT
3114 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3115#endif
dbd2fd65
JB		 3116 }
3117
3118 out:
fffd0934 3119 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3120
41ade00f
JB		 3121 return err;
3122}
3123
3124static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3125{
4c476991 3126 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3127 int err;
4c476991 3128 struct net_device *dev = info->user_ptr[1];
b9454e83 3129 struct key_parse key;
e31b8213 3130 const u8 *mac_addr = NULL;
41ade00f 3131
b9454e83
JB		 3132 err = nl80211_parse_key(info, &key);
3133 if (err)
3134 return err;
41ade00f 3135
b9454e83 3136 if (!key.p.key)
41ade00f
JB		 3137 return -EINVAL;
3138
41ade00f
JB		 3139 if (info->attrs[NL80211_ATTR_MAC])
3140 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3141
e31b8213
JB		 3142 if (key.type == -1) {
3143 if (mac_addr)
3144 key.type = NL80211_KEYTYPE_PAIRWISE;
3145 else
3146 key.type = NL80211_KEYTYPE_GROUP;
3147 }
3148
3149 /* for now */
3150 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3151 key.type != NL80211_KEYTYPE_GROUP)
3152 return -EINVAL;
3153
4c476991
JB		 3154 if (!rdev->ops->add_key)
3155 return -EOPNOTSUPP;
25e47c18 3156
e31b8213
JB		 3157 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3158 key.type == NL80211_KEYTYPE_PAIRWISE,
3159 mac_addr))
4c476991 3160 return -EINVAL;
41ade00f 3161
fffd0934
JB		 3162 wdev_lock(dev->ieee80211_ptr);
3163 err = nl80211_key_allowed(dev->ieee80211_ptr);
3164 if (!err)
e35e4d28
HG		 3165 err = rdev_add_key(rdev, dev, key.idx,
3166 key.type == NL80211_KEYTYPE_PAIRWISE,
3167 mac_addr, &key.p);
fffd0934 3168 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3169
41ade00f
JB		 3170 return err;
3171}
3172
3173static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3174{
4c476991 3175 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3176 int err;
4c476991 3177 struct net_device *dev = info->user_ptr[1];
41ade00f 3178 u8 *mac_addr = NULL;
b9454e83 3179 struct key_parse key;
41ade00f 3180
b9454e83
JB		 3181 err = nl80211_parse_key(info, &key);
3182 if (err)
3183 return err;
41ade00f
JB		 3184
3185 if (info->attrs[NL80211_ATTR_MAC])
3186 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3187
e31b8213
JB		 3188 if (key.type == -1) {
3189 if (mac_addr)
3190 key.type = NL80211_KEYTYPE_PAIRWISE;
3191 else
3192 key.type = NL80211_KEYTYPE_GROUP;
3193 }
3194
3195 /* for now */
3196 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3197 key.type != NL80211_KEYTYPE_GROUP)
3198 return -EINVAL;
3199
4c476991
JB		 3200 if (!rdev->ops->del_key)
3201 return -EOPNOTSUPP;
41ade00f 3202
fffd0934
JB		 3203 wdev_lock(dev->ieee80211_ptr);
3204 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3205
0fa7b391 3206 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3207 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3208 err = -ENOENT;
3209
fffd0934 3210 if (!err)
e35e4d28
HG		 3211 err = rdev_del_key(rdev, dev, key.idx,
3212 key.type == NL80211_KEYTYPE_PAIRWISE,
3213 mac_addr);
41ade00f 3214
3d23e349 3215#ifdef CONFIG_CFG80211_WEXT
08645126 3216 if (!err) {
b9454e83 3217 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3218 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3219 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3220 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3221 }
3222#endif
fffd0934 3223 wdev_unlock(dev->ieee80211_ptr);
08645126 3224
41ade00f
JB		 3225 return err;
3226}
3227
77765eaf
VT		 3228/* This function returns an error or the number of nested attributes */
3229static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3230{
3231 struct nlattr *attr;
3232 int n_entries = 0, tmp;
3233
3234 nla_for_each_nested(attr, nl_attr, tmp) {
3235 if (nla_len(attr) != ETH_ALEN)
3236 return -EINVAL;
3237
3238 n_entries++;
3239 }
3240
3241 return n_entries;
3242}
3243
3244/*
3245 * This function parses ACL information and allocates memory for ACL data.
3246 * On successful return, the calling function is responsible to free the
3247 * ACL buffer returned by this function.
3248 */
3249static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3250 struct genl_info *info)
3251{
3252 enum nl80211_acl_policy acl_policy;
3253 struct nlattr *attr;
3254 struct cfg80211_acl_data *acl;
3255 int i = 0, n_entries, tmp;
3256
3257 if (!wiphy->max_acl_mac_addrs)
3258 return ERR_PTR(-EOPNOTSUPP);
3259
3260 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3261 return ERR_PTR(-EINVAL);
3262
3263 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3264 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3265 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3266 return ERR_PTR(-EINVAL);
3267
3268 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3269 return ERR_PTR(-EINVAL);
3270
3271 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3272 if (n_entries < 0)
3273 return ERR_PTR(n_entries);
3274
3275 if (n_entries > wiphy->max_acl_mac_addrs)
3276 return ERR_PTR(-ENOTSUPP);
3277
3278 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3279 GFP_KERNEL);
3280 if (!acl)
3281 return ERR_PTR(-ENOMEM);
3282
3283 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3284 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3285 i++;
3286 }
3287
3288 acl->n_acl_entries = n_entries;
3289 acl->acl_policy = acl_policy;
3290
3291 return acl;
3292}
3293
3294static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3295{
3296 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3297 struct net_device *dev = info->user_ptr[1];
3298 struct cfg80211_acl_data *acl;
3299 int err;
3300
3301 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3302 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3303 return -EOPNOTSUPP;
3304
3305 if (!dev->ieee80211_ptr->beacon_interval)
3306 return -EINVAL;
3307
3308 acl = parse_acl_data(&rdev->wiphy, info);
3309 if (IS_ERR(acl))
3310 return PTR_ERR(acl);
3311
3312 err = rdev_set_mac_acl(rdev, dev, acl);
3313
3314 kfree(acl);
3315
3316 return err;
3317}
3318
a1193be8 3319static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3320 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3321{
8860020e 3322 bool haveinfo = false;
ed1b6cc7 3323
a1193be8
SW		 3324 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3325 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3326 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3327 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3328 return -EINVAL;
3329
8860020e 3330 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3331
a1193be8
SW		 3332 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3333 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3334 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3335 if (!bcn->head_len)
3336 return -EINVAL;
3337 haveinfo = true;
ed1b6cc7
JB		 3338 }
3339
a1193be8
SW		 3340 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3341 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3342 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3343 haveinfo = true;
ed1b6cc7
JB		 3344 }
3345
4c476991
JB		 3346 if (!haveinfo)
3347 return -EINVAL;
3b85875a 3348
a1193be8
SW		 3349 if (attrs[NL80211_ATTR_IE]) {
3350 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3351 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3352 }
3353
a1193be8 3354 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3355 bcn->proberesp_ies =
a1193be8 3356 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3357 bcn->proberesp_ies_len =
a1193be8 3358 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3359 }
3360
a1193be8 3361 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3362 bcn->assocresp_ies =
a1193be8 3363 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3364 bcn->assocresp_ies_len =
a1193be8 3365 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3366 }
3367
a1193be8
SW		 3368 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3369 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3370 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3371 }
3372
8860020e
JB		 3373 return 0;
3374}
3375
46c1dd0c
FF		 3376static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3377 struct cfg80211_ap_settings *params)
3378{
3379 struct wireless_dev *wdev;
3380 bool ret = false;
3381
53873f13 3382 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
46c1dd0c
FF		 3383 if (wdev->iftype != NL80211_IFTYPE_AP &&
3384 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3385 continue;
3386
683b6d3b 3387 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3388 continue;
3389
683b6d3b 3390 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3391 ret = true;
3392 break;
3393 }
3394
46c1dd0c
FF		 3395 return ret;
3396}
3397
e39e5b5e
JM		 3398static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3399 enum nl80211_auth_type auth_type,
3400 enum nl80211_commands cmd)
3401{
3402 if (auth_type > NL80211_AUTHTYPE_MAX)
3403 return false;
3404
3405 switch (cmd) {
3406 case NL80211_CMD_AUTHENTICATE:
3407 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3408 auth_type == NL80211_AUTHTYPE_SAE)
3409 return false;
3410 return true;
3411 case NL80211_CMD_CONNECT:
3412 case NL80211_CMD_START_AP:
3413 /* SAE not supported yet */
3414 if (auth_type == NL80211_AUTHTYPE_SAE)
3415 return false;
3416 return true;
3417 default:
3418 return false;
3419 }
3420}
3421
8860020e
JB		 3422static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3423{
3424 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3425 struct net_device *dev = info->user_ptr[1];
3426 struct wireless_dev *wdev = dev->ieee80211_ptr;
3427 struct cfg80211_ap_settings params;
3428 int err;
3429
3430 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3431 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3432 return -EOPNOTSUPP;
3433
3434 if (!rdev->ops->start_ap)
3435 return -EOPNOTSUPP;
3436
3437 if (wdev->beacon_interval)
3438 return -EALREADY;
3439
3440 memset(&params, 0, sizeof(params));
3441
3442 /* these are required for START_AP */
3443 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3444 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3445 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3446 return -EINVAL;
3447
a1193be8 3448 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3449 if (err)
3450 return err;
3451
3452 params.beacon_interval =
3453 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3454 params.dtim_period =
3455 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3456
3457 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3458 if (err)
3459 return err;
3460
3461 /*
3462 * In theory, some of these attributes should be required here
3463 * but since they were not used when the command was originally
3464 * added, keep them optional for old user space programs to let
3465 * them continue to work with drivers that do not need the
3466 * additional information -- drivers must check!
3467 */
3468 if (info->attrs[NL80211_ATTR_SSID]) {
3469 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3470 params.ssid_len =
3471 nla_len(info->attrs[NL80211_ATTR_SSID]);
3472 if (params.ssid_len == 0 ||
3473 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3474 return -EINVAL;
3475 }
3476
3477 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3478 params.hidden_ssid = nla_get_u32(
3479 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3480 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3481 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3482 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3483 return -EINVAL;
3484 }
3485
3486 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3487
3488 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3489 params.auth_type = nla_get_u32(
3490 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3491 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3492 NL80211_CMD_START_AP))
8860020e
JB		 3493 return -EINVAL;
3494 } else
3495 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3496
3497 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3498 NL80211_MAX_NR_CIPHER_SUITES);
3499 if (err)
3500 return err;
3501
1b658f11
VT		 3502 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3503 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3504 return -EOPNOTSUPP;
3505 params.inactivity_timeout = nla_get_u16(
3506 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3507 }
3508
53cabad7
JB		 3509 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3510 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3511 return -EINVAL;
3512 params.p2p_ctwindow =
3513 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3514 if (params.p2p_ctwindow > 127)
3515 return -EINVAL;
3516 if (params.p2p_ctwindow != 0 &&
3517 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3518 return -EINVAL;
3519 }
3520
3521 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3522 u8 tmp;
3523
3524 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3525 return -EINVAL;
3526 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3527 if (tmp > 1)
3528 return -EINVAL;
3529 params.p2p_opp_ps = tmp;
3530 if (params.p2p_opp_ps != 0 &&
3531 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3532 return -EINVAL;
3533 }
3534
aa430da4 3535 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3536 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3537 if (err)
3538 return err;
3539 } else if (wdev->preset_chandef.chan) {
3540 params.chandef = wdev->preset_chandef;
46c1dd0c 3541 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3542 return -EINVAL;
3543
923b352f
AN		 3544 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3545 wdev->iftype))
aa430da4
JB		 3546 return -EINVAL;
3547
18998c38
EP		 3548 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3549 params.smps_mode =
3550 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3551 switch (params.smps_mode) {
3552 case NL80211_SMPS_OFF:
3553 break;
3554 case NL80211_SMPS_STATIC:
3555 if (!(rdev->wiphy.features &
3556 NL80211_FEATURE_STATIC_SMPS))
3557 return -EINVAL;
3558 break;
3559 case NL80211_SMPS_DYNAMIC:
3560 if (!(rdev->wiphy.features &
3561 NL80211_FEATURE_DYNAMIC_SMPS))
3562 return -EINVAL;
3563 break;
3564 default:
3565 return -EINVAL;
3566 }
3567 } else {
3568 params.smps_mode = NL80211_SMPS_OFF;
3569 }
3570
4baf6bea
OO		 3571 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3572 params.acl = parse_acl_data(&rdev->wiphy, info);
3573 if (IS_ERR(params.acl))
3574 return PTR_ERR(params.acl);
3575 }
3576
34d50519 3577 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 3578 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
34d50519
LD		 3579 return -EOPNOTSUPP;
3580
c56589ed 3581 wdev_lock(wdev);
e35e4d28 3582 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3583 if (!err) {
683b6d3b 3584 wdev->preset_chandef = params.chandef;
8860020e 3585 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3586 wdev->chandef = params.chandef;
06e191e2
AQ		 3587 wdev->ssid_len = params.ssid_len;
3588 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3589 }
c56589ed 3590 wdev_unlock(wdev);
77765eaf
VT		 3591
3592 kfree(params.acl);
3593
56d1893d 3594 return err;
ed1b6cc7
JB		 3595}
3596
8860020e
JB		 3597static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3598{
3599 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3600 struct net_device *dev = info->user_ptr[1];
3601 struct wireless_dev *wdev = dev->ieee80211_ptr;
3602 struct cfg80211_beacon_data params;
3603 int err;
3604
3605 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3606 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3607 return -EOPNOTSUPP;
3608
3609 if (!rdev->ops->change_beacon)
3610 return -EOPNOTSUPP;
3611
3612 if (!wdev->beacon_interval)
3613 return -EINVAL;
3614
a1193be8 3615 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3616 if (err)
3617 return err;
3618
c56589ed
SW		 3619 wdev_lock(wdev);
3620 err = rdev_change_beacon(rdev, dev, &params);
3621 wdev_unlock(wdev);
3622
3623 return err;
8860020e
JB		 3624}
3625
3626static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3627{
4c476991
JB		 3628 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3629 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3630
7c8d5e03 3631 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3632}
3633
5727ef1b
JB		 3634static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3635 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3636 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3637 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3638 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3639 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3640 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3641};
3642
eccb8e8f 3643static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3644 enum nl80211_iftype iftype,
eccb8e8f 3645 struct station_parameters *params)
5727ef1b
JB		 3646{
3647 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3648 struct nlattr *nla;
5727ef1b
JB		 3649 int flag;
3650
eccb8e8f
JB		 3651 /*
3652 * Try parsing the new attribute first so userspace
3653 * can specify both for older kernels.
3654 */
3655 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3656 if (nla) {
3657 struct nl80211_sta_flag_update *sta_flags;
3658
3659 sta_flags = nla_data(nla);
3660 params->sta_flags_mask = sta_flags->mask;
3661 params->sta_flags_set = sta_flags->set;
77ee7c89 3662 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3663 if ((params->sta_flags_mask |
3664 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3665 return -EINVAL;
3666 return 0;
3667 }
3668
3669 /* if present, parse the old attribute */
5727ef1b 3670
eccb8e8f 3671 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3672 if (!nla)
3673 return 0;
3674
3675 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3676 nla, sta_flags_policy))
3677 return -EINVAL;
3678
bdd3ae3d
JB		 3679 /*
3680 * Only allow certain flags for interface types so that
3681 * other attributes are silently ignored. Remember that
3682 * this is backward compatibility code with old userspace
3683 * and shouldn't be hit in other cases anyway.
3684 */
3685 switch (iftype) {
3686 case NL80211_IFTYPE_AP:
3687 case NL80211_IFTYPE_AP_VLAN:
3688 case NL80211_IFTYPE_P2P_GO:
3689 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3690 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3691 BIT(NL80211_STA_FLAG_WME) |
3692 BIT(NL80211_STA_FLAG_MFP);
3693 break;
3694 case NL80211_IFTYPE_P2P_CLIENT:
3695 case NL80211_IFTYPE_STATION:
3696 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3697 BIT(NL80211_STA_FLAG_TDLS_PEER);
3698 break;
3699 case NL80211_IFTYPE_MESH_POINT:
3700 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3701 BIT(NL80211_STA_FLAG_MFP) |
3702 BIT(NL80211_STA_FLAG_AUTHORIZED);
3703 default:
3704 return -EINVAL;
3705 }
5727ef1b 3706
3383b5a6
JB		 3707 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3708 if (flags[flag]) {
eccb8e8f 3709 params->sta_flags_set |= (1<<flag);
5727ef1b 3710
3383b5a6
JB		 3711 /* no longer support new API additions in old API */
3712 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3713 return -EINVAL;
3714 }
3715 }
3716
5727ef1b
JB		 3717 return 0;
3718}
3719
c8dcfd8a
FF		 3720static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3721 int attr)
3722{
3723 struct nlattr *rate;
8eb41c8d
VK		 3724 u32 bitrate;
3725 u16 bitrate_compat;
b51f3bee 3726 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 3727
3728 rate = nla_nest_start(msg, attr);
3729 if (!rate)
db9c64cf 3730 return false;
c8dcfd8a
FF		 3731
3732 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3733 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3734 /* report 16-bit bitrate only if we can */
3735 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3736 if (bitrate > 0 &&
3737 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3738 return false;
3739 if (bitrate_compat > 0 &&
3740 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3741 return false;
3742
b51f3bee
JB		 3743 switch (info->bw) {
3744 case RATE_INFO_BW_5:
3745 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3746 break;
3747 case RATE_INFO_BW_10:
3748 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3749 break;
3750 default:
3751 WARN_ON(1);
3752 /* fall through */
3753 case RATE_INFO_BW_20:
3754 rate_flg = 0;
3755 break;
3756 case RATE_INFO_BW_40:
3757 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3758 break;
3759 case RATE_INFO_BW_80:
3760 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3761 break;
3762 case RATE_INFO_BW_160:
3763 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3764 break;
3765 }
3766
3767 if (rate_flg && nla_put_flag(msg, rate_flg))
3768 return false;
3769
db9c64cf
JB		 3770 if (info->flags & RATE_INFO_FLAGS_MCS) {
3771 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3772 return false;
db9c64cf
JB		 3773 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3774 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3775 return false;
3776 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3777 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3778 return false;
3779 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3780 return false;
db9c64cf
JB		 3781 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3782 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3783 return false;
3784 }
c8dcfd8a
FF		 3785
3786 nla_nest_end(msg, rate);
3787 return true;
c8dcfd8a
FF		 3788}
3789
119363c7
FF		 3790static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3791 int id)
3792{
3793 void *attr;
3794 int i = 0;
3795
3796 if (!mask)
3797 return true;
3798
3799 attr = nla_nest_start(msg, id);
3800 if (!attr)
3801 return false;
3802
3803 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3804 if (!(mask & BIT(i)))
3805 continue;
3806
3807 if (nla_put_u8(msg, i, signal[i]))
3808 return false;
3809 }
3810
3811 nla_nest_end(msg, attr);
3812
3813 return true;
3814}
3815
cf5ead82
JB		 3816static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3817 u32 seq, int flags,
66266b3a
JL		 3818 struct cfg80211_registered_device *rdev,
3819 struct net_device *dev,
98b62183 3820 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3821{
3822 void *hdr;
f4263c98 3823 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3824
cf5ead82 3825 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 3826 if (!hdr)
3827 return -1;
3828
9360ffd1
DM		 3829 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3830 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3831 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3832 goto nla_put_failure;
f5ea9120 3833
2ec600d6
LCC		 3834 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3835 if (!sinfoattr)
fd5b74dc 3836 goto nla_put_failure;
319090bf
JB		 3837
3838#define PUT_SINFO(attr, memb, type) do { \
d686b920 3839 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
739960f1 3840 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
319090bf
JB		 3841 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3842 sinfo->memb)) \
3843 goto nla_put_failure; \
3844 } while (0)
d686b920
JB		 3845#define PUT_SINFO_U64(attr, memb) do { \
3846 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
3847 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
3848 sinfo->memb, NL80211_STA_INFO_PAD)) \
3849 goto nla_put_failure; \
3850 } while (0)
319090bf
JB		 3851
3852 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3853 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3854
3855 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3856 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 3857 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3858 (u32)sinfo->rx_bytes))
9360ffd1 3859 goto nla_put_failure;
319090bf
JB		 3860
3861 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3862 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3863 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3864 (u32)sinfo->tx_bytes))
3865 goto nla_put_failure;
319090bf 3866
d686b920
JB		 3867 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
3868 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
319090bf
JB		 3869 PUT_SINFO(LLID, llid, u16);
3870 PUT_SINFO(PLID, plid, u16);
3871 PUT_SINFO(PLINK_STATE, plink_state, u8);
d686b920 3872 PUT_SINFO_U64(RX_DURATION, rx_duration);
319090bf 3873
66266b3a
JL		 3874 switch (rdev->wiphy.signal_type) {
3875 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 3876 PUT_SINFO(SIGNAL, signal, u8);
3877 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 3878 break;
3879 default:
3880 break;
3881 }
319090bf 3882 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 3883 if (!nl80211_put_signal(msg, sinfo->chains,
3884 sinfo->chain_signal,
3885 NL80211_STA_INFO_CHAIN_SIGNAL))
3886 goto nla_put_failure;
3887 }
319090bf 3888 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 3889 if (!nl80211_put_signal(msg, sinfo->chains,
3890 sinfo->chain_signal_avg,
3891 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3892 goto nla_put_failure;
3893 }
319090bf 3894 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 3895 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3896 NL80211_STA_INFO_TX_BITRATE))
3897 goto nla_put_failure;
3898 }
319090bf 3899 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 3900 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3901 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3902 goto nla_put_failure;
420e7fab 3903 }
319090bf
JB		 3904
3905 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3906 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3907 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3908 PUT_SINFO(TX_FAILED, tx_failed, u32);
3909 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3910 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3911 PUT_SINFO(LOCAL_PM, local_pm, u32);
3912 PUT_SINFO(PEER_PM, peer_pm, u32);
3913 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3914
3915 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 3916 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3917 if (!bss_param)
3918 goto nla_put_failure;
3919
9360ffd1
DM		 3920 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3921 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3922 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3923 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3924 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3925 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3926 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3927 sinfo->bss_param.dtim_period) ||
3928 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3929 sinfo->bss_param.beacon_interval))
3930 goto nla_put_failure;
f4263c98
PS		 3931
3932 nla_nest_end(msg, bss_param);
3933 }
319090bf 3934 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 3935 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3936 sizeof(struct nl80211_sta_flag_update),
3937 &sinfo->sta_flags))
3938 goto nla_put_failure;
319090bf 3939
d686b920
JB		 3940 PUT_SINFO_U64(T_OFFSET, t_offset);
3941 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
3942 PUT_SINFO_U64(BEACON_RX, rx_beacon);
a76b1942 3943 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 3944
3945#undef PUT_SINFO
d686b920 3946#undef PUT_SINFO_U64
6de39808
JB		 3947
3948 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3949 struct nlattr *tidsattr;
3950 int tid;
3951
3952 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3953 if (!tidsattr)
3954 goto nla_put_failure;
3955
3956 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3957 struct cfg80211_tid_stats *tidstats;
3958 struct nlattr *tidattr;
3959
3960 tidstats = &sinfo->pertid[tid];
3961
3962 if (!tidstats->filled)
3963 continue;
3964
3965 tidattr = nla_nest_start(msg, tid + 1);
3966 if (!tidattr)
3967 goto nla_put_failure;
3968
d686b920 3969#define PUT_TIDVAL_U64(attr, memb) do { \
6de39808 3970 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
d686b920
JB		 3971 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
3972 tidstats->memb, NL80211_TID_STATS_PAD)) \
6de39808
JB		 3973 goto nla_put_failure; \
3974 } while (0)
3975
d686b920
JB		 3976 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
3977 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
3978 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
3979 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
6de39808 3980
d686b920 3981#undef PUT_TIDVAL_U64
6de39808
JB		 3982 nla_nest_end(msg, tidattr);
3983 }
3984
3985 nla_nest_end(msg, tidsattr);
3986 }
3987
2ec600d6 3988 nla_nest_end(msg, sinfoattr);
fd5b74dc 3989
319090bf 3990 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 3991 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3992 sinfo->assoc_req_ies))
3993 goto nla_put_failure;
50d3dfb7 3994
053c095a
JB		 3995 genlmsg_end(msg, hdr);
3996 return 0;
fd5b74dc
JB		 3997
3998 nla_put_failure:
bc3ed28c
TG		 3999 genlmsg_cancel(msg, hdr);
4000 return -EMSGSIZE;
fd5b74dc
JB		 4001}
4002
2ec600d6 4003static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 4004 struct netlink_callback *cb)
2ec600d6 4005{
2ec600d6 4006 struct station_info sinfo;
1b8ec87a 4007 struct cfg80211_registered_device *rdev;
97990a06 4008 struct wireless_dev *wdev;
2ec600d6 4009 u8 mac_addr[ETH_ALEN];
97990a06 4010 int sta_idx = cb->args[2];
2ec600d6 4011 int err;
2ec600d6 4012
1b8ec87a 4013 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4014 if (err)
4015 return err;
bba95fef 4016
97990a06
JB		 4017 if (!wdev->netdev) {
4018 err = -EINVAL;
4019 goto out_err;
4020 }
4021
1b8ec87a 4022 if (!rdev->ops->dump_station) {
eec60b03 4023 err = -EOPNOTSUPP;
bba95fef
JB		 4024 goto out_err;
4025 }
4026
bba95fef 4027 while (1) {
f612cedf 4028 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 4029 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 4030 mac_addr, &sinfo);
bba95fef
JB		 4031 if (err == -ENOENT)
4032 break;
4033 if (err)
3b85875a 4034 goto out_err;
bba95fef 4035
cf5ead82 4036 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 4037 NETLINK_CB(cb->skb).portid,
bba95fef 4038 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 4039 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 4040 &sinfo) < 0)
4041 goto out;
4042
4043 sta_idx++;
4044 }
4045
bba95fef 4046 out:
97990a06 4047 cb->args[2] = sta_idx;
bba95fef 4048 err = skb->len;
bba95fef 4049 out_err:
1b8ec87a 4050 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 4051
4052 return err;
2ec600d6 4053}
fd5b74dc 4054
5727ef1b
JB		 4055static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4056{
4c476991
JB		 4057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4058 struct net_device *dev = info->user_ptr[1];
2ec600d6 4059 struct station_info sinfo;
fd5b74dc
JB		 4060 struct sk_buff *msg;
4061 u8 *mac_addr = NULL;
4c476991 4062 int err;
fd5b74dc 4063
2ec600d6 4064 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 4065
4066 if (!info->attrs[NL80211_ATTR_MAC])
4067 return -EINVAL;
4068
4069 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4070
4c476991
JB		 4071 if (!rdev->ops->get_station)
4072 return -EOPNOTSUPP;
3b85875a 4073
e35e4d28 4074 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 4075 if (err)
4c476991 4076 return err;
2ec600d6 4077
fd2120ca 4078 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 4079 if (!msg)
4c476991 4080 return -ENOMEM;
fd5b74dc 4081
cf5ead82
JB		 4082 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4083 info->snd_portid, info->snd_seq, 0,
66266b3a 4084 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 4085 nlmsg_free(msg);
4086 return -ENOBUFS;
4087 }
3b85875a 4088
4c476991 4089 return genlmsg_reply(msg, info);
5727ef1b
JB		 4090}
4091
77ee7c89
JB		 4092int cfg80211_check_station_change(struct wiphy *wiphy,
4093 struct station_parameters *params,
4094 enum cfg80211_station_type statype)
4095{
e4208427
AB		 4096 if (params->listen_interval != -1 &&
4097 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4098 return -EINVAL;
e4208427 4099
17b94247
AB		 4100 if (params->support_p2p_ps != -1 &&
4101 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4102 return -EINVAL;
4103
c72e1140 4104 if (params->aid &&
e4208427
AB		 4105 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4106 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4107 return -EINVAL;
4108
4109 /* When you run into this, adjust the code below for the new flag */
4110 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4111
4112 switch (statype) {
eef941e6
TP		 4113 case CFG80211_STA_MESH_PEER_KERNEL:
4114 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4115 /*
4116 * No ignoring the TDLS flag here -- the userspace mesh
4117 * code doesn't have the bug of including TDLS in the
4118 * mask everywhere.
4119 */
4120 if (params->sta_flags_mask &
4121 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4122 BIT(NL80211_STA_FLAG_MFP) |
4123 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4124 return -EINVAL;
4125 break;
4126 case CFG80211_STA_TDLS_PEER_SETUP:
4127 case CFG80211_STA_TDLS_PEER_ACTIVE:
4128 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4129 return -EINVAL;
4130 /* ignore since it can't change */
4131 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4132 break;
4133 default:
4134 /* disallow mesh-specific things */
4135 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4136 return -EINVAL;
4137 if (params->local_pm)
4138 return -EINVAL;
4139 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4140 return -EINVAL;
4141 }
4142
4143 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4144 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4145 /* TDLS can't be set, ... */
4146 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4147 return -EINVAL;
4148 /*
4149 * ... but don't bother the driver with it. This works around
4150 * a hostapd/wpa_supplicant issue -- it always includes the
4151 * TLDS_PEER flag in the mask even for AP mode.
4152 */
4153 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4154 }
4155
47edb11b
AB		 4156 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4157 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4158 /* reject other things that can't change */
4159 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4160 return -EINVAL;
4161 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4162 return -EINVAL;
4163 if (params->supported_rates)
4164 return -EINVAL;
4165 if (params->ext_capab || params->ht_capa || params->vht_capa)
4166 return -EINVAL;
4167 }
4168
47edb11b
AB		 4169 if (statype != CFG80211_STA_AP_CLIENT &&
4170 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4171 if (params->vlan)
4172 return -EINVAL;
4173 }
4174
4175 switch (statype) {
4176 case CFG80211_STA_AP_MLME_CLIENT:
4177 /* Use this only for authorizing/unauthorizing a station */
4178 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4179 return -EOPNOTSUPP;
4180 break;
4181 case CFG80211_STA_AP_CLIENT:
47edb11b 4182 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4183 /* accept only the listed bits */
4184 if (params->sta_flags_mask &
4185 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4186 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4187 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4188 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4189 BIT(NL80211_STA_FLAG_WME) |
4190 BIT(NL80211_STA_FLAG_MFP)))
4191 return -EINVAL;
4192
4193 /* but authenticated/associated only if driver handles it */
4194 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4195 params->sta_flags_mask &
4196 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4197 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4198 return -EINVAL;
4199 break;
4200 case CFG80211_STA_IBSS:
4201 case CFG80211_STA_AP_STA:
4202 /* reject any changes other than AUTHORIZED */
4203 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4204 return -EINVAL;
4205 break;
4206 case CFG80211_STA_TDLS_PEER_SETUP:
4207 /* reject any changes other than AUTHORIZED or WME */
4208 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4209 BIT(NL80211_STA_FLAG_WME)))
4210 return -EINVAL;
4211 /* force (at least) rates when authorizing */
4212 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4213 !params->supported_rates)
4214 return -EINVAL;
4215 break;
4216 case CFG80211_STA_TDLS_PEER_ACTIVE:
4217 /* reject any changes */
4218 return -EINVAL;
eef941e6 4219 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4220 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4221 return -EINVAL;
4222 break;
eef941e6 4223 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4224 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4225 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4226 return -EINVAL;
4227 break;
4228 }
4229
4230 return 0;
4231}
4232EXPORT_SYMBOL(cfg80211_check_station_change);
4233
5727ef1b 4234/*
c258d2de 4235 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4236 */
80b99899
JB		 4237static struct net_device *get_vlan(struct genl_info *info,
4238 struct cfg80211_registered_device *rdev)
5727ef1b 4239{
463d0183 4240 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4241 struct net_device *v;
4242 int ret;
4243
4244 if (!vlanattr)
4245 return NULL;
4246
4247 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4248 if (!v)
4249 return ERR_PTR(-ENODEV);
4250
4251 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4252 ret = -EINVAL;
4253 goto error;
5727ef1b 4254 }
80b99899 4255
77ee7c89
JB		 4256 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4257 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4258 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4259 ret = -EINVAL;
4260 goto error;
4261 }
4262
80b99899
JB		 4263 if (!netif_running(v)) {
4264 ret = -ENETDOWN;
4265 goto error;
4266 }
4267
4268 return v;
4269 error:
4270 dev_put(v);
4271 return ERR_PTR(ret);
5727ef1b
JB		 4272}
4273
94e860f1
JB		 4274static const struct nla_policy
4275nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4276 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4277 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4278};
4279
ff276691
JB		 4280static int nl80211_parse_sta_wme(struct genl_info *info,
4281 struct station_parameters *params)
df881293 4282{
df881293
JM		 4283 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4284 struct nlattr *nla;
4285 int err;
4286
df881293
JM		 4287 /* parse WME attributes if present */
4288 if (!info->attrs[NL80211_ATTR_STA_WME])
4289 return 0;
4290
4291 nla = info->attrs[NL80211_ATTR_STA_WME];
4292 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4293 nl80211_sta_wme_policy);
4294 if (err)
4295 return err;
4296
4297 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4298 params->uapsd_queues = nla_get_u8(
4299 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4300 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4301 return -EINVAL;
4302
4303 if (tb[NL80211_STA_WME_MAX_SP])
4304 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4305
4306 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4307 return -EINVAL;
4308
4309 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4310
4311 return 0;
4312}
4313
c01fc9ad
SD		 4314static int nl80211_parse_sta_channel_info(struct genl_info *info,
4315 struct station_parameters *params)
4316{
4317 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4318 params->supported_channels =
4319 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4320 params->supported_channels_len =
4321 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4322 /*
4323 * Need to include at least one (first channel, number of
4324 * channels) tuple for each subband, and must have proper
4325 * tuples for the rest of the data as well.
4326 */
4327 if (params->supported_channels_len < 2)
4328 return -EINVAL;
4329 if (params->supported_channels_len % 2)
4330 return -EINVAL;
4331 }
4332
4333 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4334 params->supported_oper_classes =
4335 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4336 params->supported_oper_classes_len =
4337 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4338 /*
4339 * The value of the Length field of the Supported Operating
4340 * Classes element is between 2 and 253.
4341 */
4342 if (params->supported_oper_classes_len < 2 ||
4343 params->supported_oper_classes_len > 253)
4344 return -EINVAL;
4345 }
4346 return 0;
4347}
4348
ff276691
JB		 4349static int nl80211_set_station_tdls(struct genl_info *info,
4350 struct station_parameters *params)
4351{
c01fc9ad 4352 int err;
ff276691 4353 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4354 if (info->attrs[NL80211_ATTR_PEER_AID])
4355 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4356 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4357 params->ht_capa =
4358 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4359 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4360 params->vht_capa =
4361 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4362
c01fc9ad
SD		 4363 err = nl80211_parse_sta_channel_info(info, params);
4364 if (err)
4365 return err;
4366
ff276691
JB		 4367 return nl80211_parse_sta_wme(info, params);
4368}
4369
5727ef1b
JB		 4370static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4371{
4c476991 4372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4373 struct net_device *dev = info->user_ptr[1];
5727ef1b 4374 struct station_parameters params;
77ee7c89
JB		 4375 u8 *mac_addr;
4376 int err;
5727ef1b
JB		 4377
4378 memset(&params, 0, sizeof(params));
4379
77ee7c89
JB		 4380 if (!rdev->ops->change_station)
4381 return -EOPNOTSUPP;
4382
e4208427
AB		 4383 /*
4384 * AID and listen_interval properties can be set only for unassociated
4385 * station. Include these parameters here and will check them in
4386 * cfg80211_check_station_change().
4387 */
a9bc31e4
AB		 4388 if (info->attrs[NL80211_ATTR_STA_AID])
4389 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4390
4391 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4392 params.listen_interval =
4393 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4394 else
4395 params.listen_interval = -1;
5727ef1b 4396
17b94247
AB		 4397 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4398 u8 tmp;
4399
4400 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4401 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4402 return -EINVAL;
4403
4404 params.support_p2p_ps = tmp;
4405 } else {
4406 params.support_p2p_ps = -1;
4407 }
4408
5727ef1b
JB		 4409 if (!info->attrs[NL80211_ATTR_MAC])
4410 return -EINVAL;
4411
4412 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4413
4414 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4415 params.supported_rates =
4416 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4417 params.supported_rates_len =
4418 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4419 }
4420
9d62a986
JM		 4421 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4422 params.capability =
4423 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4424 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4425 }
4426
4427 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4428 params.ext_capab =
4429 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4430 params.ext_capab_len =
4431 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4432 }
4433
bdd3ae3d 4434 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4435 return -EINVAL;
4436
f8bacc21 4437 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4438 params.plink_action =
f8bacc21
JB		 4439 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4440 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4441 return -EINVAL;
4442 }
2ec600d6 4443
f8bacc21 4444 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4445 params.plink_state =
f8bacc21
JB		 4446 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4447 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4448 return -EINVAL;
4449 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4450 }
9c3990aa 4451
3b1c5a53
MP		 4452 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4453 enum nl80211_mesh_power_mode pm = nla_get_u32(
4454 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4455
4456 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4457 pm > NL80211_MESH_POWER_MAX)
4458 return -EINVAL;
4459
4460 params.local_pm = pm;
4461 }
4462
77ee7c89
JB		 4463 /* Include parameters for TDLS peer (will check later) */
4464 err = nl80211_set_station_tdls(info, &params);
4465 if (err)
4466 return err;
4467
4468 params.vlan = get_vlan(info, rdev);
4469 if (IS_ERR(params.vlan))
4470 return PTR_ERR(params.vlan);
4471
a97f4424
JB		 4472 switch (dev->ieee80211_ptr->iftype) {
4473 case NL80211_IFTYPE_AP:
4474 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4475 case NL80211_IFTYPE_P2P_GO:
074ac8df 4476 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4477 case NL80211_IFTYPE_STATION:
267335d6 4478 case NL80211_IFTYPE_ADHOC:
a97f4424 4479 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4480 break;
4481 default:
77ee7c89
JB		 4482 err = -EOPNOTSUPP;
4483 goto out_put_vlan;
034d655e
JB		 4484 }
4485
77ee7c89 4486 /* driver will call cfg80211_check_station_change() */
e35e4d28 4487 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4488
77ee7c89 4489 out_put_vlan:
5727ef1b
JB		 4490 if (params.vlan)
4491 dev_put(params.vlan);
3b85875a 4492
5727ef1b
JB		 4493 return err;
4494}
4495
4496static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4497{
4c476991 4498 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4499 int err;
4c476991 4500 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4501 struct station_parameters params;
4502 u8 *mac_addr = NULL;
bda95eb1
JB		 4503 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4504 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 4505
4506 memset(&params, 0, sizeof(params));
4507
984c311b
JB		 4508 if (!rdev->ops->add_station)
4509 return -EOPNOTSUPP;
4510
5727ef1b
JB		 4511 if (!info->attrs[NL80211_ATTR_MAC])
4512 return -EINVAL;
4513
5727ef1b
JB		 4514 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4515 return -EINVAL;
4516
4517 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4518 return -EINVAL;
4519
5e4b6f56
JM		 4520 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4521 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4522 return -EINVAL;
4523
5727ef1b
JB		 4524 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4525 params.supported_rates =
4526 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4527 params.supported_rates_len =
4528 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4529 params.listen_interval =
4530 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4531
17b94247
AB		 4532 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4533 u8 tmp;
4534
4535 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4536 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4537 return -EINVAL;
4538
4539 params.support_p2p_ps = tmp;
4540 } else {
4541 /*
4542 * if not specified, assume it's supported for P2P GO interface,
4543 * and is NOT supported for AP interface
4544 */
4545 params.support_p2p_ps =
4546 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
4547 }
4548
3d124ea2 4549 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4550 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4551 else
4552 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4553 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4554 return -EINVAL;
51b50fbe 4555
9d62a986
JM		 4556 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4557 params.capability =
4558 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4559 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4560 }
4561
4562 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4563 params.ext_capab =
4564 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4565 params.ext_capab_len =
4566 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4567 }
4568
36aedc90
JM		 4569 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4570 params.ht_capa =
4571 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4572
f461be3e
MP		 4573 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4574 params.vht_capa =
4575 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4576
60f4a7b1
MK		 4577 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4578 params.opmode_notif_used = true;
4579 params.opmode_notif =
4580 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4581 }
4582
f8bacc21 4583 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4584 params.plink_action =
f8bacc21
JB		 4585 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4586 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4587 return -EINVAL;
4588 }
96b78dff 4589
c01fc9ad
SD		 4590 err = nl80211_parse_sta_channel_info(info, &params);
4591 if (err)
4592 return err;
4593
ff276691
JB		 4594 err = nl80211_parse_sta_wme(info, &params);
4595 if (err)
4596 return err;
bdd90d5e 4597
bdd3ae3d 4598 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4599 return -EINVAL;
4600
496fcc29
JB		 4601 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4602 * as userspace might just pass through the capabilities from the IEs
4603 * directly, rather than enforcing this restriction and returning an
4604 * error in this case.
4605 */
4606 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4607 params.ht_capa = NULL;
4608 params.vht_capa = NULL;
4609 }
4610
77ee7c89
JB		 4611 /* When you run into this, adjust the code below for the new flag */
4612 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4613
bdd90d5e
JB		 4614 switch (dev->ieee80211_ptr->iftype) {
4615 case NL80211_IFTYPE_AP:
4616 case NL80211_IFTYPE_AP_VLAN:
4617 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4618 /* ignore WME attributes if iface/sta is not capable */
4619 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4620 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4621 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4622
bdd90d5e 4623 /* TDLS peers cannot be added */
3d124ea2
JM		 4624 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4625 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4626 return -EINVAL;
bdd90d5e
JB		 4627 /* but don't bother the driver with it */
4628 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4629
d582cffb
JB		 4630 /* allow authenticated/associated only if driver handles it */
4631 if (!(rdev->wiphy.features &
4632 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 4633 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 4634 return -EINVAL;
4635
bda95eb1
JB		 4636 /* Older userspace, or userspace wanting to be compatible with
4637 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
4638 * and assoc flags in the mask, but assumes the station will be
4639 * added as associated anyway since this was the required driver
4640 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
4641 * introduced.
4642 * In order to not bother drivers with this quirk in the API
4643 * set the flags in both the mask and set for new stations in
4644 * this case.
4645 */
4646 if (!(params.sta_flags_mask & auth_assoc)) {
4647 params.sta_flags_mask |= auth_assoc;
4648 params.sta_flags_set |= auth_assoc;
4649 }
4650
bdd90d5e
JB		 4651 /* must be last in here for error handling */
4652 params.vlan = get_vlan(info, rdev);
4653 if (IS_ERR(params.vlan))
4654 return PTR_ERR(params.vlan);
4655 break;
4656 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4657 /* ignore uAPSD data */
4658 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4659
d582cffb
JB		 4660 /* associated is disallowed */
4661 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4662 return -EINVAL;
bdd90d5e 4663 /* TDLS peers cannot be added */
3d124ea2
JM		 4664 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4665 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4666 return -EINVAL;
4667 break;
4668 case NL80211_IFTYPE_STATION:
93d08f0b 4669 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4670 /* ignore uAPSD data */
4671 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4672
77ee7c89
JB		 4673 /* these are disallowed */
4674 if (params.sta_flags_mask &
4675 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4676 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4677 return -EINVAL;
bdd90d5e
JB		 4678 /* Only TDLS peers can be added */
4679 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4680 return -EINVAL;
4681 /* Can only add if TDLS ... */
4682 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4683 return -EOPNOTSUPP;
4684 /* ... with external setup is supported */
4685 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4686 return -EOPNOTSUPP;
77ee7c89
JB		 4687 /*
4688 * Older wpa_supplicant versions always mark the TDLS peer
4689 * as authorized, but it shouldn't yet be.
4690 */
4691 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4692 break;
4693 default:
4694 return -EOPNOTSUPP;
c75786c9
EP		 4695 }
4696
bdd90d5e 4697 /* be aware of params.vlan when changing code here */
5727ef1b 4698
e35e4d28 4699 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4700
5727ef1b
JB		 4701 if (params.vlan)
4702 dev_put(params.vlan);
5727ef1b
JB		 4703 return err;
4704}
4705
4706static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4707{
4c476991
JB		 4708 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4709 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4710 struct station_del_parameters params;
4711
4712 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4713
4714 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4715 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4716
e80cf853 4717 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4718 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4719 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4720 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4721 return -EINVAL;
5727ef1b 4722
4c476991
JB		 4723 if (!rdev->ops->del_station)
4724 return -EOPNOTSUPP;
3b85875a 4725
98856866
JM		 4726 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4727 params.subtype =
4728 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4729 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4730 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4731 return -EINVAL;
4732 } else {
4733 /* Default to Deauthentication frame */
4734 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4735 }
4736
4737 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4738 params.reason_code =
4739 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4740 if (params.reason_code == 0)
4741 return -EINVAL; /* 0 is reserved */
4742 } else {
4743 /* Default to reason code 2 */
4744 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4745 }
4746
89c771e5 4747 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4748}
4749
15e47304 4750static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4751 int flags, struct net_device *dev,
4752 u8 *dst, u8 *next_hop,
4753 struct mpath_info *pinfo)
4754{
4755 void *hdr;
4756 struct nlattr *pinfoattr;
4757
1ef4c850 4758 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4759 if (!hdr)
4760 return -1;
4761
9360ffd1
DM		 4762 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4763 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4764 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4765 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4766 goto nla_put_failure;
f5ea9120 4767
2ec600d6
LCC		 4768 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4769 if (!pinfoattr)
4770 goto nla_put_failure;
9360ffd1
DM		 4771 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4772 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4773 pinfo->frame_qlen))
4774 goto nla_put_failure;
4775 if (((pinfo->filled & MPATH_INFO_SN) &&
4776 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4777 ((pinfo->filled & MPATH_INFO_METRIC) &&
4778 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4779 pinfo->metric)) ||
4780 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4781 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4782 pinfo->exptime)) ||
4783 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4784 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4785 pinfo->flags)) ||
4786 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4787 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4788 pinfo->discovery_timeout)) ||
4789 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4790 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4791 pinfo->discovery_retries)))
4792 goto nla_put_failure;
2ec600d6
LCC		 4793
4794 nla_nest_end(msg, pinfoattr);
4795
053c095a
JB		 4796 genlmsg_end(msg, hdr);
4797 return 0;
2ec600d6
LCC		 4798
4799 nla_put_failure:
bc3ed28c
TG		 4800 genlmsg_cancel(msg, hdr);
4801 return -EMSGSIZE;
2ec600d6
LCC		 4802}
4803
4804static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4805 struct netlink_callback *cb)
2ec600d6 4806{
2ec600d6 4807 struct mpath_info pinfo;
1b8ec87a 4808 struct cfg80211_registered_device *rdev;
97990a06 4809 struct wireless_dev *wdev;
2ec600d6
LCC		 4810 u8 dst[ETH_ALEN];
4811 u8 next_hop[ETH_ALEN];
97990a06 4812 int path_idx = cb->args[2];
2ec600d6 4813 int err;
2ec600d6 4814
1b8ec87a 4815 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4816 if (err)
4817 return err;
bba95fef 4818
1b8ec87a 4819 if (!rdev->ops->dump_mpath) {
eec60b03 4820 err = -EOPNOTSUPP;
bba95fef
JB		 4821 goto out_err;
4822 }
4823
97990a06 4824 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4825 err = -EOPNOTSUPP;
0448b5fc 4826 goto out_err;
eec60b03
JM		 4827 }
4828
bba95fef 4829 while (1) {
1b8ec87a 4830 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4831 next_hop, &pinfo);
bba95fef 4832 if (err == -ENOENT)
2ec600d6 4833 break;
bba95fef 4834 if (err)
3b85875a 4835 goto out_err;
2ec600d6 4836
15e47304 4837 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4838 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4839 wdev->netdev, dst, next_hop,
bba95fef
JB		 4840 &pinfo) < 0)
4841 goto out;
2ec600d6 4842
bba95fef 4843 path_idx++;
2ec600d6 4844 }
2ec600d6 4845
bba95fef 4846 out:
97990a06 4847 cb->args[2] = path_idx;
bba95fef 4848 err = skb->len;
bba95fef 4849 out_err:
1b8ec87a 4850 nl80211_finish_wdev_dump(rdev);
bba95fef 4851 return err;
2ec600d6
LCC		 4852}
4853
4854static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4855{
4c476991 4856 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4857 int err;
4c476991 4858 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4859 struct mpath_info pinfo;
4860 struct sk_buff *msg;
4861 u8 *dst = NULL;
4862 u8 next_hop[ETH_ALEN];
4863
4864 memset(&pinfo, 0, sizeof(pinfo));
4865
4866 if (!info->attrs[NL80211_ATTR_MAC])
4867 return -EINVAL;
4868
4869 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4870
4c476991
JB		 4871 if (!rdev->ops->get_mpath)
4872 return -EOPNOTSUPP;
2ec600d6 4873
4c476991
JB		 4874 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4875 return -EOPNOTSUPP;
eec60b03 4876
e35e4d28 4877 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4878 if (err)
4c476991 4879 return err;
2ec600d6 4880
fd2120ca 4881 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4882 if (!msg)
4c476991 4883 return -ENOMEM;
2ec600d6 4884
15e47304 4885 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4886 dev, dst, next_hop, &pinfo) < 0) {
4887 nlmsg_free(msg);
4888 return -ENOBUFS;
4889 }
3b85875a 4890
4c476991 4891 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4892}
4893
4894static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4895{
4c476991
JB		 4896 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4897 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4898 u8 *dst = NULL;
4899 u8 *next_hop = NULL;
4900
4901 if (!info->attrs[NL80211_ATTR_MAC])
4902 return -EINVAL;
4903
4904 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4905 return -EINVAL;
4906
4907 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4908 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4909
4c476991
JB		 4910 if (!rdev->ops->change_mpath)
4911 return -EOPNOTSUPP;
35a8efe1 4912
4c476991
JB		 4913 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4914 return -EOPNOTSUPP;
2ec600d6 4915
e35e4d28 4916 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4917}
4c476991 4918
2ec600d6
LCC		 4919static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4920{
4c476991
JB		 4921 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4922 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4923 u8 *dst = NULL;
4924 u8 *next_hop = NULL;
4925
4926 if (!info->attrs[NL80211_ATTR_MAC])
4927 return -EINVAL;
4928
4929 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4930 return -EINVAL;
4931
4932 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4933 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4934
4c476991
JB		 4935 if (!rdev->ops->add_mpath)
4936 return -EOPNOTSUPP;
35a8efe1 4937
4c476991
JB		 4938 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4939 return -EOPNOTSUPP;
2ec600d6 4940
e35e4d28 4941 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4942}
4943
4944static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4945{
4c476991
JB		 4946 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4947 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4948 u8 *dst = NULL;
4949
4950 if (info->attrs[NL80211_ATTR_MAC])
4951 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4952
4c476991
JB		 4953 if (!rdev->ops->del_mpath)
4954 return -EOPNOTSUPP;
3b85875a 4955
e35e4d28 4956 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4957}
4958
66be7d2b
HR		 4959static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4960{
4961 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4962 int err;
4963 struct net_device *dev = info->user_ptr[1];
4964 struct mpath_info pinfo;
4965 struct sk_buff *msg;
4966 u8 *dst = NULL;
4967 u8 mpp[ETH_ALEN];
4968
4969 memset(&pinfo, 0, sizeof(pinfo));
4970
4971 if (!info->attrs[NL80211_ATTR_MAC])
4972 return -EINVAL;
4973
4974 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4975
4976 if (!rdev->ops->get_mpp)
4977 return -EOPNOTSUPP;
4978
4979 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4980 return -EOPNOTSUPP;
4981
4982 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4983 if (err)
4984 return err;
4985
4986 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4987 if (!msg)
4988 return -ENOMEM;
4989
4990 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4991 dev, dst, mpp, &pinfo) < 0) {
4992 nlmsg_free(msg);
4993 return -ENOBUFS;
4994 }
4995
4996 return genlmsg_reply(msg, info);
4997}
4998
4999static int nl80211_dump_mpp(struct sk_buff *skb,
5000 struct netlink_callback *cb)
5001{
5002 struct mpath_info pinfo;
5003 struct cfg80211_registered_device *rdev;
5004 struct wireless_dev *wdev;
5005 u8 dst[ETH_ALEN];
5006 u8 mpp[ETH_ALEN];
5007 int path_idx = cb->args[2];
5008 int err;
5009
5010 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5011 if (err)
5012 return err;
5013
5014 if (!rdev->ops->dump_mpp) {
5015 err = -EOPNOTSUPP;
5016 goto out_err;
5017 }
5018
5019 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5020 err = -EOPNOTSUPP;
5021 goto out_err;
5022 }
5023
5024 while (1) {
5025 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5026 mpp, &pinfo);
5027 if (err == -ENOENT)
5028 break;
5029 if (err)
5030 goto out_err;
5031
5032 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5033 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5034 wdev->netdev, dst, mpp,
5035 &pinfo) < 0)
5036 goto out;
5037
5038 path_idx++;
5039 }
5040
5041 out:
5042 cb->args[2] = path_idx;
5043 err = skb->len;
5044 out_err:
5045 nl80211_finish_wdev_dump(rdev);
5046 return err;
5047}
5048
9f1ba906
JM		 5049static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5050{
4c476991
JB		 5051 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5052 struct net_device *dev = info->user_ptr[1];
c56589ed 5053 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 5054 struct bss_parameters params;
c56589ed 5055 int err;
9f1ba906
JM		 5056
5057 memset(&params, 0, sizeof(params));
5058 /* default to not changing parameters */
5059 params.use_cts_prot = -1;
5060 params.use_short_preamble = -1;
5061 params.use_short_slot_time = -1;
fd8aaaf3 5062 params.ap_isolate = -1;
50b12f59 5063 params.ht_opmode = -1;
53cabad7
JB		 5064 params.p2p_ctwindow = -1;
5065 params.p2p_opp_ps = -1;
9f1ba906
JM		 5066
5067 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5068 params.use_cts_prot =
5069 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5070 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5071 params.use_short_preamble =
5072 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5073 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5074 params.use_short_slot_time =
5075 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 5076 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5077 params.basic_rates =
5078 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5079 params.basic_rates_len =
5080 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5081 }
fd8aaaf3
FF		 5082 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5083 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 5084 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5085 params.ht_opmode =
5086 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 5087
53cabad7
JB		 5088 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5089 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5090 return -EINVAL;
5091 params.p2p_ctwindow =
5092 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5093 if (params.p2p_ctwindow < 0)
5094 return -EINVAL;
5095 if (params.p2p_ctwindow != 0 &&
5096 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5097 return -EINVAL;
5098 }
5099
5100 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5101 u8 tmp;
5102
5103 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5104 return -EINVAL;
5105 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5106 if (tmp > 1)
5107 return -EINVAL;
5108 params.p2p_opp_ps = tmp;
5109 if (params.p2p_opp_ps &&
5110 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5111 return -EINVAL;
5112 }
5113
4c476991
JB		 5114 if (!rdev->ops->change_bss)
5115 return -EOPNOTSUPP;
9f1ba906 5116
074ac8df 5117 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5118 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5119 return -EOPNOTSUPP;
3b85875a 5120
c56589ed
SW		 5121 wdev_lock(wdev);
5122 err = rdev_change_bss(rdev, dev, &params);
5123 wdev_unlock(wdev);
5124
5125 return err;
9f1ba906
JM		 5126}
5127
b2e1b302
LR		 5128static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5129{
b2e1b302 5130 char *data = NULL;
05050753 5131 bool is_indoor;
57b5ce07 5132 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5133 u32 owner_nlportid;
5134
80778f18
LR		 5135 /*
5136 * You should only get this when cfg80211 hasn't yet initialized
5137 * completely when built-in to the kernel right between the time
5138 * window between nl80211_init() and regulatory_init(), if that is
5139 * even possible.
5140 */
458f4f9e 5141 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5142 return -EINPROGRESS;
80778f18 5143
57b5ce07
LR		 5144 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5145 user_reg_hint_type =
5146 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5147 else
5148 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5149
5150 switch (user_reg_hint_type) {
5151 case NL80211_USER_REG_HINT_USER:
5152 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5153 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5154 return -EINVAL;
5155
5156 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5157 return regulatory_hint_user(data, user_reg_hint_type);
5158 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5159 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5160 owner_nlportid = info->snd_portid;
5161 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5162 } else {
5163 owner_nlportid = 0;
5164 is_indoor = true;
5165 }
5166
5167 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5168 default:
5169 return -EINVAL;
5170 }
b2e1b302
LR		 5171}
5172
24bdd9f4 5173static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5174 struct genl_info *info)
93da9cc1 5175{
4c476991 5176 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5177 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5178 struct wireless_dev *wdev = dev->ieee80211_ptr;
5179 struct mesh_config cur_params;
5180 int err = 0;
93da9cc1 5181 void *hdr;
5182 struct nlattr *pinfoattr;
5183 struct sk_buff *msg;
5184
29cbe68c
JB		 5185 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5186 return -EOPNOTSUPP;
5187
24bdd9f4 5188 if (!rdev->ops->get_mesh_config)
4c476991 5189 return -EOPNOTSUPP;
f3f92586 5190
29cbe68c
JB		 5191 wdev_lock(wdev);
5192 /* If not connected, get default parameters */
5193 if (!wdev->mesh_id_len)
5194 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5195 else
e35e4d28 5196 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5197 wdev_unlock(wdev);
5198
93da9cc1 5199 if (err)
4c476991 5200 return err;
93da9cc1 5201
5202 /* Draw up a netlink message to send back */
fd2120ca 5203 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5204 if (!msg)
5205 return -ENOMEM;
15e47304 5206 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5207 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5208 if (!hdr)
efe1cf0c 5209 goto out;
24bdd9f4 5210 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5211 if (!pinfoattr)
5212 goto nla_put_failure;
9360ffd1
DM		 5213 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5214 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5215 cur_params.dot11MeshRetryTimeout) ||
5216 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5217 cur_params.dot11MeshConfirmTimeout) ||
5218 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5219 cur_params.dot11MeshHoldingTimeout) ||
5220 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5221 cur_params.dot11MeshMaxPeerLinks) ||
5222 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5223 cur_params.dot11MeshMaxRetries) ||
5224 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5225 cur_params.dot11MeshTTL) ||
5226 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5227 cur_params.element_ttl) ||
5228 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5229 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5230 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5231 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5232 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5233 cur_params.dot11MeshHWMPmaxPREQretries) ||
5234 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5235 cur_params.path_refresh_time) ||
5236 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5237 cur_params.min_discovery_timeout) ||
5238 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5239 cur_params.dot11MeshHWMPactivePathTimeout) ||
5240 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5241 cur_params.dot11MeshHWMPpreqMinInterval) ||
5242 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5243 cur_params.dot11MeshHWMPperrMinInterval) ||
5244 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5245 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5246 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5247 cur_params.dot11MeshHWMPRootMode) ||
5248 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5249 cur_params.dot11MeshHWMPRannInterval) ||
5250 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5251 cur_params.dot11MeshGateAnnouncementProtocol) ||
5252 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5253 cur_params.dot11MeshForwarding) ||
5254 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5255 cur_params.rssi_threshold) ||
5256 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5257 cur_params.ht_opmode) ||
5258 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5259 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5260 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5261 cur_params.dot11MeshHWMProotInterval) ||
5262 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5263 cur_params.dot11MeshHWMPconfirmationInterval) ||
5264 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5265 cur_params.power_mode) ||
5266 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5267 cur_params.dot11MeshAwakeWindowDuration) ||
5268 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5269 cur_params.plink_timeout))
9360ffd1 5270 goto nla_put_failure;
93da9cc1 5271 nla_nest_end(msg, pinfoattr);
5272 genlmsg_end(msg, hdr);
4c476991 5273 return genlmsg_reply(msg, info);
93da9cc1 5274
3b85875a 5275 nla_put_failure:
93da9cc1 5276 genlmsg_cancel(msg, hdr);
efe1cf0c 5277 out:
d080e275 5278 nlmsg_free(msg);
4c476991 5279 return -ENOBUFS;
93da9cc1 5280}
5281
b54452b0 5282static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5283 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5284 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5285 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5286 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5287 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5288 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5289 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5290 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5291 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5292 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5293 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5294 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5295 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5296 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5297 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5298 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5299 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5300 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5301 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5302 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5303 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5304 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5305 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5306 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5307 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5308 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5309 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5310 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5311};
5312
c80d545d
JC		 5313static const struct nla_policy
5314 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5315 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5316 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5317 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5318 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5319 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5320 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5321 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5322 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5323 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5324};
5325
f151d9db
AB		 5326static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5327{
5328 u8 val = nla_get_u8(nla);
5329 if (val < min || val > max)
5330 return -EINVAL;
5331 *out = val;
5332 return 0;
5333}
5334
5335static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5336{
5337 u8 val = nla_get_u8(nla);
5338 if (val < min || val > max)
5339 return -EINVAL;
5340 *out = val;
5341 return 0;
5342}
5343
5344static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5345{
5346 u16 val = nla_get_u16(nla);
5347 if (val < min || val > max)
5348 return -EINVAL;
5349 *out = val;
5350 return 0;
5351}
5352
5353static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5354{
5355 u32 val = nla_get_u32(nla);
5356 if (val < min || val > max)
5357 return -EINVAL;
5358 *out = val;
5359 return 0;
5360}
5361
5362static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5363{
5364 s32 val = nla_get_s32(nla);
5365 if (val < min || val > max)
5366 return -EINVAL;
5367 *out = val;
5368 return 0;
5369}
5370
24bdd9f4 5371static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5372 struct mesh_config *cfg,
5373 u32 *mask_out)
93da9cc1 5374{
93da9cc1 5375 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5376 u32 mask = 0;
93da9cc1 5377
ea54fba2
MP		 5378#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5379do { \
5380 if (tb[attr]) { \
f151d9db 5381 if (fn(tb[attr], min, max, &cfg->param)) \
ea54fba2 5382 return -EINVAL; \
ea54fba2
MP		 5383 mask |= (1 << (attr - 1)); \
5384 } \
5385} while (0)
bd90fdcc 5386
24bdd9f4 5387 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5388 return -EINVAL;
5389 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5390 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5391 nl80211_meshconf_params_policy))
93da9cc1 5392 return -EINVAL;
5393
93da9cc1 5394 /* This makes sure that there aren't more than 32 mesh config
5395 * parameters (otherwise our bitfield scheme would not work.) */
5396 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5397
5398 /* Fill in the params struct */
ea54fba2 5399 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea 5400 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
f151d9db 5401 nl80211_check_u16);
ea54fba2 5402 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea 5403 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
f151d9db 5404 nl80211_check_u16);
ea54fba2 5405 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea 5406 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
f151d9db 5407 nl80211_check_u16);
ea54fba2 5408 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea 5409 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
f151d9db 5410 nl80211_check_u16);
ea54fba2 5411 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea 5412 mask, NL80211_MESHCONF_MAX_RETRIES,
f151d9db 5413 nl80211_check_u8);
ea54fba2 5414 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
f151d9db 5415 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
ea54fba2 5416 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea 5417 mask, NL80211_MESHCONF_ELEMENT_TTL,
f151d9db 5418 nl80211_check_u8);
ea54fba2 5419 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea 5420 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
f151d9db 5421 nl80211_check_bool);
ea54fba2
MP		 5422 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5423 1, 255, mask,
a4f606ea 5424 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
f151d9db 5425 nl80211_check_u32);
ea54fba2 5426 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea 5427 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
f151d9db 5428 nl80211_check_u8);
ea54fba2 5429 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea 5430 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
f151d9db 5431 nl80211_check_u32);
ea54fba2 5432 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea 5433 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
f151d9db 5434 nl80211_check_u16);
ea54fba2
MP		 5435 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5436 1, 65535, mask,
a4f606ea 5437 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
f151d9db 5438 nl80211_check_u32);
93da9cc1 5439 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5440 1, 65535, mask,
5441 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
f151d9db 5442 nl80211_check_u16);
dca7e943 5443 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5444 1, 65535, mask,
5445 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
f151d9db 5446 nl80211_check_u16);
93da9cc1 5447 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5448 dot11MeshHWMPnetDiameterTraversalTime,
5449 1, 65535, mask,
a4f606ea 5450 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
f151d9db 5451 nl80211_check_u16);
ea54fba2
MP		 5452 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5453 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
f151d9db 5454 nl80211_check_u8);
ea54fba2
MP		 5455 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5456 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
f151d9db 5457 nl80211_check_u16);
63c5723b 5458 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5459 dot11MeshGateAnnouncementProtocol, 0, 1,
5460 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
f151d9db 5461 nl80211_check_bool);
ea54fba2 5462 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea 5463 mask, NL80211_MESHCONF_FORWARDING,
f151d9db 5464 nl80211_check_bool);
83374fe9 5465 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5466 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
f151d9db 5467 nl80211_check_s32);
ea54fba2 5468 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5469 mask, NL80211_MESHCONF_HT_OPMODE,
f151d9db 5470 nl80211_check_u16);
ac1073a6 5471 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5472 1, 65535, mask,
ac1073a6 5473 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
f151d9db 5474 nl80211_check_u32);
ea54fba2 5475 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5476 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
f151d9db 5477 nl80211_check_u16);
728b19e5 5478 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5479 dot11MeshHWMPconfirmationInterval,
5480 1, 65535, mask,
728b19e5 5481 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
f151d9db 5482 nl80211_check_u16);
3b1c5a53
MP		 5483 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5484 NL80211_MESH_POWER_ACTIVE,
5485 NL80211_MESH_POWER_MAX,
5486 mask, NL80211_MESHCONF_POWER_MODE,
f151d9db 5487 nl80211_check_u32);
3b1c5a53
MP		 5488 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5489 0, 65535, mask,
f151d9db 5490 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
31f909a2 5491 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538 5492 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
f151d9db 5493 nl80211_check_u32);
bd90fdcc
JB		 5494 if (mask_out)
5495 *mask_out = mask;
c80d545d 5496
bd90fdcc
JB		 5497 return 0;
5498
5499#undef FILL_IN_MESH_PARAM_IF_SET
5500}
5501
c80d545d
JC		 5502static int nl80211_parse_mesh_setup(struct genl_info *info,
5503 struct mesh_setup *setup)
5504{
bb2798d4 5505 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5506 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5507
5508 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5509 return -EINVAL;
5510 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5511 info->attrs[NL80211_ATTR_MESH_SETUP],
5512 nl80211_mesh_setup_params_policy))
5513 return -EINVAL;
5514
d299a1f2
JC		 5515 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5516 setup->sync_method =
5517 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5518 IEEE80211_SYNC_METHOD_VENDOR :
5519 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5520
c80d545d
JC		 5521 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5522 setup->path_sel_proto =
5523 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5524 IEEE80211_PATH_PROTOCOL_VENDOR :
5525 IEEE80211_PATH_PROTOCOL_HWMP;
5526
5527 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5528 setup->path_metric =
5529 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5530 IEEE80211_PATH_METRIC_VENDOR :
5531 IEEE80211_PATH_METRIC_AIRTIME;
5532
581a8b0f 5533 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5534 struct nlattr *ieattr =
581a8b0f 5535 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5536 if (!is_valid_ie_attr(ieattr))
5537 return -EINVAL;
581a8b0f
JC		 5538 setup->ie = nla_data(ieattr);
5539 setup->ie_len = nla_len(ieattr);
c80d545d 5540 }
bb2798d4
TP		 5541 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5542 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5543 return -EINVAL;
5544 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5545 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5546 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5547 if (setup->is_secure)
5548 setup->user_mpm = true;
c80d545d 5549
6e16d90b
CT		 5550 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5551 if (!setup->user_mpm)
5552 return -EINVAL;
5553 setup->auth_id =
5554 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5555 }
5556
c80d545d
JC		 5557 return 0;
5558}
5559
24bdd9f4 5560static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5561 struct genl_info *info)
bd90fdcc
JB		 5562{
5563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5564 struct net_device *dev = info->user_ptr[1];
29cbe68c 5565 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5566 struct mesh_config cfg;
5567 u32 mask;
5568 int err;
5569
29cbe68c
JB		 5570 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5571 return -EOPNOTSUPP;
5572
24bdd9f4 5573 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5574 return -EOPNOTSUPP;
5575
24bdd9f4 5576 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5577 if (err)
5578 return err;
5579
29cbe68c
JB		 5580 wdev_lock(wdev);
5581 if (!wdev->mesh_id_len)
5582 err = -ENOLINK;
5583
5584 if (!err)
e35e4d28 5585 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5586
5587 wdev_unlock(wdev);
5588
5589 return err;
93da9cc1 5590}
5591
ad30ca2c
AN		 5592static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5593 struct sk_buff *msg)
f130347c 5594{
f130347c
LR		 5595 struct nlattr *nl_reg_rules;
5596 unsigned int i;
f130347c 5597
458f4f9e
JB		 5598 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5599 (regdom->dfs_region &&
5600 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5601 goto nla_put_failure;
458f4f9e 5602
f130347c
LR		 5603 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5604 if (!nl_reg_rules)
ad30ca2c 5605 goto nla_put_failure;
f130347c 5606
458f4f9e 5607 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5608 struct nlattr *nl_reg_rule;
5609 const struct ieee80211_reg_rule *reg_rule;
5610 const struct ieee80211_freq_range *freq_range;
5611 const struct ieee80211_power_rule *power_rule;
97524820 5612 unsigned int max_bandwidth_khz;
f130347c 5613
458f4f9e 5614 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5615 freq_range = &reg_rule->freq_range;
5616 power_rule = &reg_rule->power_rule;
5617
5618 nl_reg_rule = nla_nest_start(msg, i);
5619 if (!nl_reg_rule)
ad30ca2c 5620 goto nla_put_failure;
f130347c 5621
97524820
JD		 5622 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5623 if (!max_bandwidth_khz)
5624 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5625 reg_rule);
5626
9360ffd1
DM		 5627 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5628 reg_rule->flags) ||
5629 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5630 freq_range->start_freq_khz) ||
5631 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5632 freq_range->end_freq_khz) ||
5633 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5634 max_bandwidth_khz) ||
9360ffd1
DM		 5635 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5636 power_rule->max_antenna_gain) ||
5637 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5638 power_rule->max_eirp) ||
5639 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5640 reg_rule->dfs_cac_ms))
ad30ca2c 5641 goto nla_put_failure;
f130347c
LR		 5642
5643 nla_nest_end(msg, nl_reg_rule);
5644 }
5645
5646 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5647 return 0;
5648
5649nla_put_failure:
5650 return -EMSGSIZE;
5651}
5652
5653static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5654{
5655 const struct ieee80211_regdomain *regdom = NULL;
5656 struct cfg80211_registered_device *rdev;
5657 struct wiphy *wiphy = NULL;
5658 struct sk_buff *msg;
5659 void *hdr;
5660
5661 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5662 if (!msg)
5663 return -ENOBUFS;
5664
5665 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5666 NL80211_CMD_GET_REG);
5667 if (!hdr)
5668 goto put_failure;
5669
5670 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5671 bool self_managed;
5672
ad30ca2c
AN		 5673 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5674 if (IS_ERR(rdev)) {
5675 nlmsg_free(msg);
5676 return PTR_ERR(rdev);
5677 }
5678
5679 wiphy = &rdev->wiphy;
1bdd716c
AN		 5680 self_managed = wiphy->regulatory_flags &
5681 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5682 regdom = get_wiphy_regdom(wiphy);
5683
1bdd716c
AN		 5684 /* a self-managed-reg device must have a private regdom */
5685 if (WARN_ON(!regdom && self_managed)) {
5686 nlmsg_free(msg);
5687 return -EINVAL;
5688 }
5689
ad30ca2c
AN		 5690 if (regdom &&
5691 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5692 goto nla_put_failure;
5693 }
5694
5695 if (!wiphy && reg_last_request_cell_base() &&
5696 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5697 NL80211_USER_REG_HINT_CELL_BASE))
5698 goto nla_put_failure;
5699
5700 rcu_read_lock();
5701
5702 if (!regdom)
5703 regdom = rcu_dereference(cfg80211_regdomain);
5704
5705 if (nl80211_put_regdom(regdom, msg))
5706 goto nla_put_failure_rcu;
5707
5708 rcu_read_unlock();
f130347c
LR		 5709
5710 genlmsg_end(msg, hdr);
5fe231e8 5711 return genlmsg_reply(msg, info);
f130347c 5712
458f4f9e
JB		 5713nla_put_failure_rcu:
5714 rcu_read_unlock();
f130347c
LR		 5715nla_put_failure:
5716 genlmsg_cancel(msg, hdr);
efe1cf0c 5717put_failure:
d080e275 5718 nlmsg_free(msg);
5fe231e8 5719 return -EMSGSIZE;
f130347c
LR		 5720}
5721
ad30ca2c
AN		 5722static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5723 u32 seq, int flags, struct wiphy *wiphy,
5724 const struct ieee80211_regdomain *regdom)
5725{
5726 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5727 NL80211_CMD_GET_REG);
5728
5729 if (!hdr)
5730 return -1;
5731
5732 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5733
5734 if (nl80211_put_regdom(regdom, msg))
5735 goto nla_put_failure;
5736
5737 if (!wiphy && reg_last_request_cell_base() &&
5738 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5739 NL80211_USER_REG_HINT_CELL_BASE))
5740 goto nla_put_failure;
5741
5742 if (wiphy &&
5743 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5744 goto nla_put_failure;
5745
1bdd716c
AN		 5746 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5747 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5748 goto nla_put_failure;
5749
053c095a
JB		 5750 genlmsg_end(msg, hdr);
5751 return 0;
ad30ca2c
AN		 5752
5753nla_put_failure:
5754 genlmsg_cancel(msg, hdr);
5755 return -EMSGSIZE;
5756}
5757
5758static int nl80211_get_reg_dump(struct sk_buff *skb,
5759 struct netlink_callback *cb)
5760{
5761 const struct ieee80211_regdomain *regdom = NULL;
5762 struct cfg80211_registered_device *rdev;
5763 int err, reg_idx, start = cb->args[2];
5764
5765 rtnl_lock();
5766
5767 if (cfg80211_regdomain && start == 0) {
5768 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5769 NLM_F_MULTI, NULL,
5770 rtnl_dereference(cfg80211_regdomain));
5771 if (err < 0)
5772 goto out_err;
5773 }
5774
5775 /* the global regdom is idx 0 */
5776 reg_idx = 1;
5777 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5778 regdom = get_wiphy_regdom(&rdev->wiphy);
5779 if (!regdom)
5780 continue;
5781
5782 if (++reg_idx <= start)
5783 continue;
5784
5785 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5786 NLM_F_MULTI, &rdev->wiphy, regdom);
5787 if (err < 0) {
5788 reg_idx--;
5789 break;
5790 }
5791 }
5792
5793 cb->args[2] = reg_idx;
5794 err = skb->len;
5795out_err:
5796 rtnl_unlock();
5797 return err;
5798}
5799
b6863036
JB		 5800#ifdef CONFIG_CFG80211_CRDA_SUPPORT
5801static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
5802 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5803 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5804 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5805 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5806 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5807 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5808 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
5809};
5810
5811static int parse_reg_rule(struct nlattr *tb[],
5812 struct ieee80211_reg_rule *reg_rule)
5813{
5814 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
5815 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
5816
5817 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
5818 return -EINVAL;
5819 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
5820 return -EINVAL;
5821 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
5822 return -EINVAL;
5823 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
5824 return -EINVAL;
5825 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
5826 return -EINVAL;
5827
5828 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
5829
5830 freq_range->start_freq_khz =
5831 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
5832 freq_range->end_freq_khz =
5833 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
5834 freq_range->max_bandwidth_khz =
5835 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
5836
5837 power_rule->max_eirp =
5838 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
5839
5840 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
5841 power_rule->max_antenna_gain =
5842 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
5843
5844 if (tb[NL80211_ATTR_DFS_CAC_TIME])
5845 reg_rule->dfs_cac_ms =
5846 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
5847
5848 return 0;
5849}
5850
b2e1b302
LR		 5851static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5852{
5853 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5854 struct nlattr *nl_reg_rule;
ea372c54
JB		 5855 char *alpha2;
5856 int rem_reg_rules, r;
b2e1b302 5857 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5858 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5859 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5860
5861 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5862 return -EINVAL;
5863
5864 if (!info->attrs[NL80211_ATTR_REG_RULES])
5865 return -EINVAL;
5866
5867 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5868
8b60b078
LR		 5869 if (info->attrs[NL80211_ATTR_DFS_REGION])
5870 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5871
b2e1b302 5872 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5873 rem_reg_rules) {
b2e1b302
LR		 5874 num_rules++;
5875 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5876 return -EINVAL;
b2e1b302
LR		 5877 }
5878
e438768f
LR		 5879 if (!reg_is_valid_request(alpha2))
5880 return -EINVAL;
5881
b2e1b302 5882 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5883 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5884
5885 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5886 if (!rd)
5887 return -ENOMEM;
b2e1b302
LR		 5888
5889 rd->n_reg_rules = num_rules;
5890 rd->alpha2[0] = alpha2[0];
5891 rd->alpha2[1] = alpha2[1];
5892
8b60b078
LR		 5893 /*
5894 * Disable DFS master mode if the DFS region was
5895 * not supported or known on this kernel.
5896 */
5897 if (reg_supported_dfs_region(dfs_region))
5898 rd->dfs_region = dfs_region;
5899
b2e1b302 5900 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5901 rem_reg_rules) {
ae811e21
JB		 5902 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5903 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5904 reg_rule_policy);
5905 if (r)
5906 goto bad_reg;
b2e1b302
LR		 5907 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5908 if (r)
5909 goto bad_reg;
5910
5911 rule_idx++;
5912
d0e18f83
LR		 5913 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5914 r = -EINVAL;
b2e1b302 5915 goto bad_reg;
d0e18f83 5916 }
b2e1b302
LR		 5917 }
5918
06627990
JB		 5919 /* set_regdom takes ownership of rd */
5920 return set_regdom(rd, REGD_SOURCE_CRDA);
d2372b31 5921 bad_reg:
b2e1b302 5922 kfree(rd);
d0e18f83 5923 return r;
b2e1b302 5924}
b6863036 5925#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 5926
83f5e2cf
JB		 5927static int validate_scan_freqs(struct nlattr *freqs)
5928{
5929 struct nlattr *attr1, *attr2;
5930 int n_channels = 0, tmp1, tmp2;
5931
5932 nla_for_each_nested(attr1, freqs, tmp1) {
5933 n_channels++;
5934 /*
5935 * Some hardware has a limited channel list for
5936 * scanning, and it is pretty much nonsensical
5937 * to scan for a channel twice, so disallow that
5938 * and don't require drivers to check that the
5939 * channel list they get isn't longer than what
5940 * they can scan, as long as they can scan all
5941 * the channels they registered at once.
5942 */
5943 nla_for_each_nested(attr2, freqs, tmp2)
5944 if (attr1 != attr2 &&
5945 nla_get_u32(attr1) == nla_get_u32(attr2))
5946 return 0;
5947 }
5948
5949 return n_channels;
5950}
5951
57fbcce3 5952static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
38de03d2 5953{
57fbcce3 5954 return b < NUM_NL80211_BANDS && wiphy->bands[b];
38de03d2
AS		 5955}
5956
5957static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
5958 struct cfg80211_bss_selection *bss_select)
5959{
5960 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
5961 struct nlattr *nest;
5962 int err;
5963 bool found = false;
5964 int i;
5965
5966 /* only process one nested attribute */
5967 nest = nla_data(nla);
5968 if (!nla_ok(nest, nla_len(nest)))
5969 return -EINVAL;
5970
5971 err = nla_parse(attr, NL80211_BSS_SELECT_ATTR_MAX, nla_data(nest),
5972 nla_len(nest), nl80211_bss_select_policy);
5973 if (err)
5974 return err;
5975
5976 /* only one attribute may be given */
5977 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
5978 if (attr[i]) {
5979 if (found)
5980 return -EINVAL;
5981 found = true;
5982 }
5983 }
5984
5985 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
5986
5987 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
5988 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
5989
5990 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
5991 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
5992 bss_select->param.band_pref =
5993 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
5994 if (!is_band_valid(wiphy, bss_select->param.band_pref))
5995 return -EINVAL;
5996 }
5997
5998 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
5999 struct nl80211_bss_select_rssi_adjust *adj_param;
6000
6001 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6002 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6003 bss_select->param.adjust.band = adj_param->band;
6004 bss_select->param.adjust.delta = adj_param->delta;
6005 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6006 return -EINVAL;
6007 }
6008
6009 /* user-space did not provide behaviour attribute */
6010 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6011 return -EINVAL;
6012
6013 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6014 return -EINVAL;
6015
6016 return 0;
6017}
6018
ad2b26ab
JB		 6019static int nl80211_parse_random_mac(struct nlattr **attrs,
6020 u8 *mac_addr, u8 *mac_addr_mask)
6021{
6022 int i;
6023
6024 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 6025 eth_zero_addr(mac_addr);
6026 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 6027 mac_addr[0] = 0x2;
6028 mac_addr_mask[0] = 0x3;
6029
6030 return 0;
6031 }
6032
6033 /* need both or none */
6034 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6035 return -EINVAL;
6036
6037 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6038 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6039
6040 /* don't allow or configure an mcast address */
6041 if (!is_multicast_ether_addr(mac_addr_mask) ||
6042 is_multicast_ether_addr(mac_addr))
6043 return -EINVAL;
6044
6045 /*
6046 * allow users to pass a MAC address that has bits set outside
6047 * of the mask, but don't bother drivers with having to deal
6048 * with such bits
6049 */
6050 for (i = 0; i < ETH_ALEN; i++)
6051 mac_addr[i] &= mac_addr_mask[i];
6052
6053 return 0;
6054}
6055
2a519311
JB		 6056static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6057{
4c476991 6058 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 6059 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 6060 struct cfg80211_scan_request *request;
2a519311
JB		 6061 struct nlattr *attr;
6062 struct wiphy *wiphy;
83f5e2cf 6063 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 6064 size_t ie_len;
2a519311 6065
f4a11bb0
JB		 6066 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6067 return -EINVAL;
6068
79c97e97 6069 wiphy = &rdev->wiphy;
2a519311 6070
4c476991
JB		 6071 if (!rdev->ops->scan)
6072 return -EOPNOTSUPP;
2a519311 6073
f9d15d16 6074 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 6075 err = -EBUSY;
6076 goto unlock;
6077 }
2a519311
JB		 6078
6079 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 6080 n_channels = validate_scan_freqs(
6081 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 6082 if (!n_channels) {
6083 err = -EINVAL;
6084 goto unlock;
6085 }
2a519311 6086 } else {
bdfbec2d 6087 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 6088 }
6089
6090 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6091 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6092 n_ssids++;
6093
f9f47529
JB		 6094 if (n_ssids > wiphy->max_scan_ssids) {
6095 err = -EINVAL;
6096 goto unlock;
6097 }
2a519311 6098
70692ad2
JM		 6099 if (info->attrs[NL80211_ATTR_IE])
6100 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6101 else
6102 ie_len = 0;
6103
f9f47529
JB		 6104 if (ie_len > wiphy->max_scan_ie_len) {
6105 err = -EINVAL;
6106 goto unlock;
6107 }
18a83659 6108
2a519311 6109 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 6110 + sizeof(*request->ssids) * n_ssids
6111 + sizeof(*request->channels) * n_channels
70692ad2 6112 + ie_len, GFP_KERNEL);
f9f47529
JB		 6113 if (!request) {
6114 err = -ENOMEM;
6115 goto unlock;
6116 }
2a519311 6117
2a519311 6118 if (n_ssids)
5ba63533 6119 request->ssids = (void *)&request->channels[n_channels];
2a519311 6120 request->n_ssids = n_ssids;
70692ad2 6121 if (ie_len) {
13874e4b 6122 if (n_ssids)
70692ad2
JM		 6123 request->ie = (void *)(request->ssids + n_ssids);
6124 else
6125 request->ie = (void *)(request->channels + n_channels);
6126 }
2a519311 6127
584991dc 6128 i = 0;
2a519311
JB		 6129 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6130 /* user specified, bail out if channel not found */
2a519311 6131 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6132 struct ieee80211_channel *chan;
6133
6134 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6135
6136 if (!chan) {
2a519311
JB		 6137 err = -EINVAL;
6138 goto out_free;
6139 }
584991dc
JB		 6140
6141 /* ignore disabled channels */
6142 if (chan->flags & IEEE80211_CHAN_DISABLED)
6143 continue;
6144
6145 request->channels[i] = chan;
2a519311
JB		 6146 i++;
6147 }
6148 } else {
57fbcce3 6149 enum nl80211_band band;
34850ab2 6150
2a519311 6151 /* all channels */
57fbcce3 6152 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2a519311 6153 int j;
7a087e74 6154
2a519311
JB		 6155 if (!wiphy->bands[band])
6156 continue;
6157 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6158 struct ieee80211_channel *chan;
6159
6160 chan = &wiphy->bands[band]->channels[j];
6161
6162 if (chan->flags & IEEE80211_CHAN_DISABLED)
6163 continue;
6164
6165 request->channels[i] = chan;
2a519311
JB		 6166 i++;
6167 }
6168 }
6169 }
6170
584991dc
JB		 6171 if (!i) {
6172 err = -EINVAL;
6173 goto out_free;
6174 }
6175
6176 request->n_channels = i;
6177
2a519311 6178 i = 0;
13874e4b 6179 if (n_ssids) {
2a519311 6180 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6181 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6182 err = -EINVAL;
6183 goto out_free;
6184 }
57a27e1d 6185 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6186 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6187 i++;
6188 }
6189 }
6190
70692ad2
JM		 6191 if (info->attrs[NL80211_ATTR_IE]) {
6192 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6193 memcpy((void *)request->ie,
6194 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6195 request->ie_len);
6196 }
6197
57fbcce3 6198 for (i = 0; i < NUM_NL80211_BANDS; i++)
a401d2bb
JB		 6199 if (wiphy->bands[i])
6200 request->rates[i] =
6201 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6202
6203 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6204 nla_for_each_nested(attr,
6205 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6206 tmp) {
57fbcce3 6207 enum nl80211_band band = nla_type(attr);
34850ab2 6208
57fbcce3 6209 if (band < 0 || band >= NUM_NL80211_BANDS) {
34850ab2
JB		 6210 err = -EINVAL;
6211 goto out_free;
6212 }
1b09cd82
FF		 6213
6214 if (!wiphy->bands[band])
6215 continue;
6216
34850ab2
JB		 6217 err = ieee80211_get_ratemask(wiphy->bands[band],
6218 nla_data(attr),
6219 nla_len(attr),
6220 &request->rates[band]);
6221 if (err)
6222 goto out_free;
6223 }
6224 }
6225
1d76250b
AS		 6226 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6227 if (!wiphy_ext_feature_isset(wiphy,
6228 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6229 err = -EOPNOTSUPP;
6230 goto out_free;
6231 }
6232
6233 request->duration =
6234 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6235 request->duration_mandatory =
6236 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6237 }
6238
46856bbf 6239 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 6240 request->flags = nla_get_u32(
6241 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6242 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6243 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6244 err = -EOPNOTSUPP;
6245 goto out_free;
6246 }
ad2b26ab
JB		 6247
6248 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6249 if (!(wiphy->features &
6250 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6251 err = -EOPNOTSUPP;
6252 goto out_free;
6253 }
6254
6255 if (wdev->current_bss) {
6256 err = -EOPNOTSUPP;
6257 goto out_free;
6258 }
6259
6260 err = nl80211_parse_random_mac(info->attrs,
6261 request->mac_addr,
6262 request->mac_addr_mask);
6263 if (err)
6264 goto out_free;
6265 }
46856bbf 6266 }
ed473771 6267
e9f935e3
RM		 6268 request->no_cck =
6269 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6270
818965d3
JM		 6271 if (info->attrs[NL80211_ATTR_MAC])
6272 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6273 ETH_ALEN);
6274 else
6275 eth_broadcast_addr(request->bssid);
6276
fd014284 6277 request->wdev = wdev;
79c97e97 6278 request->wiphy = &rdev->wiphy;
15d6030b 6279 request->scan_start = jiffies;
2a519311 6280
79c97e97 6281 rdev->scan_req = request;
e35e4d28 6282 err = rdev_scan(rdev, request);
2a519311 6283
463d0183 6284 if (!err) {
fd014284
JB		 6285 nl80211_send_scan_start(rdev, wdev);
6286 if (wdev->netdev)
6287 dev_hold(wdev->netdev);
4c476991 6288 } else {
2a519311 6289 out_free:
79c97e97 6290 rdev->scan_req = NULL;
2a519311
JB		 6291 kfree(request);
6292 }
3b85875a 6293
f9f47529 6294 unlock:
2a519311
JB		 6295 return err;
6296}
6297
91d3ab46
VK		 6298static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6299{
6300 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6301 struct wireless_dev *wdev = info->user_ptr[1];
6302
6303 if (!rdev->ops->abort_scan)
6304 return -EOPNOTSUPP;
6305
6306 if (rdev->scan_msg)
6307 return 0;
6308
6309 if (!rdev->scan_req)
6310 return -ENOENT;
6311
6312 rdev_abort_scan(rdev, wdev);
6313 return 0;
6314}
6315
3b06d277
AS		 6316static int
6317nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6318 struct cfg80211_sched_scan_request *request,
6319 struct nlattr **attrs)
6320{
6321 int tmp, err, i = 0;
6322 struct nlattr *attr;
6323
6324 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6325 u32 interval;
6326
6327 /*
6328 * If scan plans are not specified,
6329 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6330 * case one scan plan will be set with the specified scan
6331 * interval and infinite number of iterations.
6332 */
6333 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6334 return -EINVAL;
6335
6336 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6337 if (!interval)
6338 return -EINVAL;
6339
6340 request->scan_plans[0].interval =
6341 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6342 if (!request->scan_plans[0].interval)
6343 return -EINVAL;
6344
6345 if (request->scan_plans[0].interval >
6346 wiphy->max_sched_scan_plan_interval)
6347 request->scan_plans[0].interval =
6348 wiphy->max_sched_scan_plan_interval;
6349
6350 return 0;
6351 }
6352
6353 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6354 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6355
6356 if (WARN_ON(i >= n_plans))
6357 return -EINVAL;
6358
6359 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6360 nla_data(attr), nla_len(attr),
6361 nl80211_plan_policy);
6362 if (err)
6363 return err;
6364
6365 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6366 return -EINVAL;
6367
6368 request->scan_plans[i].interval =
6369 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6370 if (!request->scan_plans[i].interval ||
6371 request->scan_plans[i].interval >
6372 wiphy->max_sched_scan_plan_interval)
6373 return -EINVAL;
6374
6375 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6376 request->scan_plans[i].iterations =
6377 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6378 if (!request->scan_plans[i].iterations ||
6379 (request->scan_plans[i].iterations >
6380 wiphy->max_sched_scan_plan_iterations))
6381 return -EINVAL;
6382 } else if (i < n_plans - 1) {
6383 /*
6384 * All scan plans but the last one must specify
6385 * a finite number of iterations
6386 */
6387 return -EINVAL;
6388 }
6389
6390 i++;
6391 }
6392
6393 /*
6394 * The last scan plan must not specify the number of
6395 * iterations, it is supposed to run infinitely
6396 */
6397 if (request->scan_plans[n_plans - 1].iterations)
6398 return -EINVAL;
6399
6400 return 0;
6401}
6402
256da02d 6403static struct cfg80211_sched_scan_request *
ad2b26ab 6404nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 6405 struct nlattr **attrs)
807f8a8c
LC		 6406{
6407 struct cfg80211_sched_scan_request *request;
807f8a8c 6408 struct nlattr *attr;
3b06d277 6409 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
57fbcce3 6410 enum nl80211_band band;
807f8a8c 6411 size_t ie_len;
a1f1c21c 6412 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6413 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6414
256da02d
LC		 6415 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6416 return ERR_PTR(-EINVAL);
807f8a8c 6417
256da02d 6418 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6419 n_channels = validate_scan_freqs(
256da02d 6420 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6421 if (!n_channels)
256da02d 6422 return ERR_PTR(-EINVAL);
807f8a8c 6423 } else {
bdfbec2d 6424 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6425 }
6426
256da02d
LC		 6427 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6428 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6429 tmp)
6430 n_ssids++;
6431
93b6aa69 6432 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6433 return ERR_PTR(-EINVAL);
807f8a8c 6434
ea73cbce
JB		 6435 /*
6436 * First, count the number of 'real' matchsets. Due to an issue with
6437 * the old implementation, matchsets containing only the RSSI attribute
6438 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6439 * RSSI for all matchsets, rather than their own matchset for reporting
6440 * all APs with a strong RSSI. This is needed to be compatible with
6441 * older userspace that treated a matchset with only the RSSI as the
6442 * global RSSI for all other matchsets - if there are other matchsets.
6443 */
256da02d 6444 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6445 nla_for_each_nested(attr,
256da02d 6446 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6447 tmp) {
6448 struct nlattr *rssi;
6449
6450 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6451 nla_data(attr), nla_len(attr),
6452 nl80211_match_policy);
6453 if (err)
256da02d 6454 return ERR_PTR(err);
ea73cbce
JB		 6455 /* add other standalone attributes here */
6456 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6457 n_match_sets++;
6458 continue;
6459 }
6460 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6461 if (rssi)
6462 default_match_rssi = nla_get_s32(rssi);
6463 }
6464 }
6465
6466 /* However, if there's no other matchset, add the RSSI one */
6467 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6468 n_match_sets = 1;
a1f1c21c
LC		 6469
6470 if (n_match_sets > wiphy->max_match_sets)
256da02d 6471 return ERR_PTR(-EINVAL);
a1f1c21c 6472
256da02d
LC		 6473 if (attrs[NL80211_ATTR_IE])
6474 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6475 else
6476 ie_len = 0;
6477
5a865bad 6478 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6479 return ERR_PTR(-EINVAL);
c10841ca 6480
3b06d277
AS		 6481 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6482 /*
6483 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6484 * each scan plan already specifies its own interval
6485 */
6486 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6487 return ERR_PTR(-EINVAL);
6488
6489 nla_for_each_nested(attr,
6490 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6491 n_plans++;
6492 } else {
6493 /*
6494 * The scan interval attribute is kept for backward
6495 * compatibility. If no scan plans are specified and sched scan
6496 * interval is specified, one scan plan will be set with this
6497 * scan interval and infinite number of iterations.
6498 */
6499 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6500 return ERR_PTR(-EINVAL);
6501
6502 n_plans = 1;
6503 }
6504
6505 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6506 return ERR_PTR(-EINVAL);
6507
807f8a8c 6508 request = kzalloc(sizeof(*request)
a2cd43c5 6509 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6510 + sizeof(*request->match_sets) * n_match_sets
3b06d277 6511 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 6512 + sizeof(*request->channels) * n_channels
807f8a8c 6513 + ie_len, GFP_KERNEL);
256da02d
LC		 6514 if (!request)
6515 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6516
6517 if (n_ssids)
6518 request->ssids = (void *)&request->channels[n_channels];
6519 request->n_ssids = n_ssids;
6520 if (ie_len) {
13874e4b 6521 if (n_ssids)
807f8a8c
LC		 6522 request->ie = (void *)(request->ssids + n_ssids);
6523 else
6524 request->ie = (void *)(request->channels + n_channels);
6525 }
6526
a1f1c21c
LC		 6527 if (n_match_sets) {
6528 if (request->ie)
6529 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6530 else if (n_ssids)
a1f1c21c
LC		 6531 request->match_sets =
6532 (void *)(request->ssids + n_ssids);
6533 else
6534 request->match_sets =
6535 (void *)(request->channels + n_channels);
6536 }
6537 request->n_match_sets = n_match_sets;
6538
3b06d277
AS		 6539 if (n_match_sets)
6540 request->scan_plans = (void *)(request->match_sets +
6541 n_match_sets);
6542 else if (request->ie)
6543 request->scan_plans = (void *)(request->ie + ie_len);
6544 else if (n_ssids)
6545 request->scan_plans = (void *)(request->ssids + n_ssids);
6546 else
6547 request->scan_plans = (void *)(request->channels + n_channels);
6548
6549 request->n_scan_plans = n_plans;
6550
807f8a8c 6551 i = 0;
256da02d 6552 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6553 /* user specified, bail out if channel not found */
6554 nla_for_each_nested(attr,
256da02d 6555 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6556 tmp) {
6557 struct ieee80211_channel *chan;
6558
6559 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6560
6561 if (!chan) {
6562 err = -EINVAL;
6563 goto out_free;
6564 }
6565
6566 /* ignore disabled channels */
6567 if (chan->flags & IEEE80211_CHAN_DISABLED)
6568 continue;
6569
6570 request->channels[i] = chan;
6571 i++;
6572 }
6573 } else {
6574 /* all channels */
57fbcce3 6575 for (band = 0; band < NUM_NL80211_BANDS; band++) {
807f8a8c 6576 int j;
7a087e74 6577
807f8a8c
LC		 6578 if (!wiphy->bands[band])
6579 continue;
6580 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6581 struct ieee80211_channel *chan;
6582
6583 chan = &wiphy->bands[band]->channels[j];
6584
6585 if (chan->flags & IEEE80211_CHAN_DISABLED)
6586 continue;
6587
6588 request->channels[i] = chan;
6589 i++;
6590 }
6591 }
6592 }
6593
6594 if (!i) {
6595 err = -EINVAL;
6596 goto out_free;
6597 }
6598
6599 request->n_channels = i;
6600
6601 i = 0;
13874e4b 6602 if (n_ssids) {
256da02d 6603 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6604 tmp) {
57a27e1d 6605 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6606 err = -EINVAL;
6607 goto out_free;
6608 }
57a27e1d 6609 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6610 memcpy(request->ssids[i].ssid, nla_data(attr),
6611 nla_len(attr));
807f8a8c
LC		 6612 i++;
6613 }
6614 }
6615
a1f1c21c 6616 i = 0;
256da02d 6617 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6618 nla_for_each_nested(attr,
256da02d 6619 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6620 tmp) {
88e920b4 6621 struct nlattr *ssid, *rssi;
a1f1c21c 6622
ae811e21
JB		 6623 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6624 nla_data(attr), nla_len(attr),
6625 nl80211_match_policy);
6626 if (err)
6627 goto out_free;
4a4ab0d7 6628 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6629 if (ssid) {
ea73cbce
JB		 6630 if (WARN_ON(i >= n_match_sets)) {
6631 /* this indicates a programming error,
6632 * the loop above should have verified
6633 * things properly
6634 */
6635 err = -EINVAL;
6636 goto out_free;
6637 }
6638
a1f1c21c
LC		 6639 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6640 err = -EINVAL;
6641 goto out_free;
6642 }
6643 memcpy(request->match_sets[i].ssid.ssid,
6644 nla_data(ssid), nla_len(ssid));
6645 request->match_sets[i].ssid.ssid_len =
6646 nla_len(ssid);
56ab364f 6647 /* special attribute - old implementation w/a */
ea73cbce
JB		 6648 request->match_sets[i].rssi_thold =
6649 default_match_rssi;
6650 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6651 if (rssi)
6652 request->match_sets[i].rssi_thold =
6653 nla_get_s32(rssi);
a1f1c21c
LC		 6654 }
6655 i++;
6656 }
ea73cbce
JB		 6657
6658 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6659 if (i == 0 && n_match_sets)
ea73cbce
JB		 6660 request->match_sets[0].rssi_thold = default_match_rssi;
6661
6662 request->min_rssi_thold = INT_MAX;
6663 for (i = 0; i < n_match_sets; i++)
6664 request->min_rssi_thold =
6665 min(request->match_sets[i].rssi_thold,
6666 request->min_rssi_thold);
6667 } else {
6668 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6669 }
6670
9900e484
JB		 6671 if (ie_len) {
6672 request->ie_len = ie_len;
807f8a8c 6673 memcpy((void *)request->ie,
256da02d 6674 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6675 request->ie_len);
6676 }
6677
256da02d 6678 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6679 request->flags = nla_get_u32(
256da02d 6680 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6681 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6682 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6683 err = -EOPNOTSUPP;
6684 goto out_free;
6685 }
ad2b26ab
JB		 6686
6687 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6688 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6689
6690 if (!wdev) /* must be net-detect */
6691 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6692
6693 if (!(wiphy->features & flg)) {
6694 err = -EOPNOTSUPP;
6695 goto out_free;
6696 }
6697
6698 if (wdev && wdev->current_bss) {
6699 err = -EOPNOTSUPP;
6700 goto out_free;
6701 }
6702
6703 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6704 request->mac_addr_mask);
6705 if (err)
6706 goto out_free;
6707 }
46856bbf 6708 }
ed473771 6709
9c748934
LC		 6710 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6711 request->delay =
6712 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6713
3b06d277
AS		 6714 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6715 if (err)
6716 goto out_free;
6717
15d6030b 6718 request->scan_start = jiffies;
807f8a8c 6719
256da02d 6720 return request;
807f8a8c
LC		 6721
6722out_free:
6723 kfree(request);
256da02d
LC		 6724 return ERR_PTR(err);
6725}
6726
6727static int nl80211_start_sched_scan(struct sk_buff *skb,
6728 struct genl_info *info)
6729{
6730 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6731 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6732 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6733 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6734 int err;
6735
6736 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6737 !rdev->ops->sched_scan_start)
6738 return -EOPNOTSUPP;
6739
6740 if (rdev->sched_scan_req)
6741 return -EINPROGRESS;
6742
31a60ed1
JR		 6743 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6744 info->attrs);
6745
6746 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6747 if (err)
6748 goto out_err;
6749
31a60ed1 6750 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6751 if (err)
6752 goto out_free;
6753
31a60ed1
JR		 6754 sched_scan_req->dev = dev;
6755 sched_scan_req->wiphy = &rdev->wiphy;
6756
93a1e86c
JR		 6757 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6758 sched_scan_req->owner_nlportid = info->snd_portid;
6759
31a60ed1 6760 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6761
6762 nl80211_send_sched_scan(rdev, dev,
6763 NL80211_CMD_START_SCHED_SCAN);
6764 return 0;
6765
6766out_free:
31a60ed1 6767 kfree(sched_scan_req);
256da02d 6768out_err:
807f8a8c
LC		 6769 return err;
6770}
6771
6772static int nl80211_stop_sched_scan(struct sk_buff *skb,
6773 struct genl_info *info)
6774{
6775 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6776
6777 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6778 !rdev->ops->sched_scan_stop)
6779 return -EOPNOTSUPP;
6780
5fe231e8 6781 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6782}
6783
04f39047
SW		 6784static int nl80211_start_radar_detection(struct sk_buff *skb,
6785 struct genl_info *info)
6786{
6787 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6788 struct net_device *dev = info->user_ptr[1];
6789 struct wireless_dev *wdev = dev->ieee80211_ptr;
6790 struct cfg80211_chan_def chandef;
55f7435c 6791 enum nl80211_dfs_regions dfs_region;
31559f35 6792 unsigned int cac_time_ms;
04f39047
SW		 6793 int err;
6794
55f7435c
LR		 6795 dfs_region = reg_get_dfs_region(wdev->wiphy);
6796 if (dfs_region == NL80211_DFS_UNSET)
6797 return -EINVAL;
6798
04f39047
SW		 6799 err = nl80211_parse_chandef(rdev, info, &chandef);
6800 if (err)
6801 return err;
6802
ff311bc1
SW		 6803 if (netif_carrier_ok(dev))
6804 return -EBUSY;
6805
04f39047
SW		 6806 if (wdev->cac_started)
6807 return -EBUSY;
6808
2beb6dab 6809 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6810 wdev->iftype);
04f39047
SW		 6811 if (err < 0)
6812 return err;
6813
6814 if (err == 0)
6815 return -EINVAL;
6816
fe7c3a1f 6817 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6818 return -EINVAL;
6819
6820 if (!rdev->ops->start_radar_detection)
6821 return -EOPNOTSUPP;
6822
31559f35
JD		 6823 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6824 if (WARN_ON(!cac_time_ms))
6825 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6826
a1056b1b 6827 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 6828 if (!err) {
9e0e2961 6829 wdev->chandef = chandef;
04f39047
SW		 6830 wdev->cac_started = true;
6831 wdev->cac_start_time = jiffies;
31559f35 6832 wdev->cac_time_ms = cac_time_ms;
04f39047 6833 }
04f39047
SW		 6834 return err;
6835}
6836
16ef1fe2
SW		 6837static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6838{
6839 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6840 struct net_device *dev = info->user_ptr[1];
6841 struct wireless_dev *wdev = dev->ieee80211_ptr;
6842 struct cfg80211_csa_settings params;
6843 /* csa_attrs is defined static to avoid waste of stack size - this
6844 * function is called under RTNL lock, so this should not be a problem.
6845 */
6846 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6847 int err;
ee4bc9e7 6848 bool need_new_beacon = false;
9a774c78 6849 int len, i;
252e07ca 6850 u32 cs_count;
16ef1fe2
SW		 6851
6852 if (!rdev->ops->channel_switch ||
6853 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6854 return -EOPNOTSUPP;
6855
ee4bc9e7
SW		 6856 switch (dev->ieee80211_ptr->iftype) {
6857 case NL80211_IFTYPE_AP:
6858 case NL80211_IFTYPE_P2P_GO:
6859 need_new_beacon = true;
6860
6861 /* useless if AP is not running */
6862 if (!wdev->beacon_interval)
1ff79dfa 6863 return -ENOTCONN;
ee4bc9e7
SW		 6864 break;
6865 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6866 if (!wdev->ssid_len)
6867 return -ENOTCONN;
6868 break;
c6da674a 6869 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6870 if (!wdev->mesh_id_len)
6871 return -ENOTCONN;
ee4bc9e7
SW		 6872 break;
6873 default:
16ef1fe2 6874 return -EOPNOTSUPP;
ee4bc9e7 6875 }
16ef1fe2
SW		 6876
6877 memset(&params, 0, sizeof(params));
6878
6879 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6880 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6881 return -EINVAL;
6882
6883 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6884 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6885 return -EINVAL;
6886
252e07ca
LC		 6887 /* Even though the attribute is u32, the specification says
6888 * u8, so let's make sure we don't overflow.
6889 */
6890 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6891 if (cs_count > 255)
6892 return -EINVAL;
6893
6894 params.count = cs_count;
16ef1fe2 6895
ee4bc9e7
SW		 6896 if (!need_new_beacon)
6897 goto skip_beacons;
6898
16ef1fe2
SW		 6899 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6900 if (err)
6901 return err;
6902
6903 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6904 info->attrs[NL80211_ATTR_CSA_IES],
6905 nl80211_policy);
6906 if (err)
6907 return err;
6908
6909 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6910 if (err)
6911 return err;
6912
6913 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6914 return -EINVAL;
6915
9a774c78
AO		 6916 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6917 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6918 return -EINVAL;
6919
9a774c78
AO		 6920 params.n_counter_offsets_beacon = len / sizeof(u16);
6921 if (rdev->wiphy.max_num_csa_counters &&
6922 (params.n_counter_offsets_beacon >
6923 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6924 return -EINVAL;
6925
9a774c78
AO		 6926 params.counter_offsets_beacon =
6927 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6928
6929 /* sanity checks - counters should fit and be the same */
6930 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6931 u16 offset = params.counter_offsets_beacon[i];
6932
6933 if (offset >= params.beacon_csa.tail_len)
6934 return -EINVAL;
6935
6936 if (params.beacon_csa.tail[offset] != params.count)
6937 return -EINVAL;
6938 }
6939
16ef1fe2 6940 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6941 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6942 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6943 return -EINVAL;
6944
9a774c78
AO		 6945 params.n_counter_offsets_presp = len / sizeof(u16);
6946 if (rdev->wiphy.max_num_csa_counters &&
6947 (params.n_counter_offsets_beacon >
6948 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6949 return -EINVAL;
9a774c78
AO		 6950
6951 params.counter_offsets_presp =
6952 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6953
6954 /* sanity checks - counters should fit and be the same */
6955 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6956 u16 offset = params.counter_offsets_presp[i];
6957
6958 if (offset >= params.beacon_csa.probe_resp_len)
6959 return -EINVAL;
6960
6961 if (params.beacon_csa.probe_resp[offset] !=
6962 params.count)
6963 return -EINVAL;
6964 }
16ef1fe2
SW		 6965 }
6966
ee4bc9e7 6967skip_beacons:
16ef1fe2
SW		 6968 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6969 if (err)
6970 return err;
6971
923b352f
AN		 6972 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
6973 wdev->iftype))
16ef1fe2
SW		 6974 return -EINVAL;
6975
2beb6dab
LC		 6976 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6977 &params.chandef,
6978 wdev->iftype);
6979 if (err < 0)
6980 return err;
6981
dcc6c2f5 6982 if (err > 0)
2beb6dab 6983 params.radar_required = true;
16ef1fe2 6984
16ef1fe2
SW		 6985 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6986 params.block_tx = true;
6987
c56589ed
SW		 6988 wdev_lock(wdev);
6989 err = rdev_channel_switch(rdev, dev, &params);
6990 wdev_unlock(wdev);
6991
6992 return err;
16ef1fe2
SW		 6993}
6994
9720bb3a
JB		 6995static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6996 u32 seq, int flags,
2a519311 6997 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6998 struct wireless_dev *wdev,
6999 struct cfg80211_internal_bss *intbss)
2a519311 7000{
48ab905d 7001 struct cfg80211_bss *res = &intbss->pub;
9caf0364 7002 const struct cfg80211_bss_ies *ies;
2a519311
JB		 7003 void *hdr;
7004 struct nlattr *bss;
48ab905d
JB		 7005
7006 ASSERT_WDEV_LOCK(wdev);
2a519311 7007
15e47304 7008 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 7009 NL80211_CMD_NEW_SCAN_RESULTS);
7010 if (!hdr)
7011 return -1;
7012
9720bb3a
JB		 7013 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7014
97990a06
JB		 7015 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7016 goto nla_put_failure;
7017 if (wdev->netdev &&
9360ffd1
DM		 7018 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7019 goto nla_put_failure;
2dad624e
ND		 7020 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7021 NL80211_ATTR_PAD))
97990a06 7022 goto nla_put_failure;
2a519311
JB		 7023
7024 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7025 if (!bss)
7026 goto nla_put_failure;
9360ffd1 7027 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 7028 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 7029 goto nla_put_failure;
9caf0364
JB		 7030
7031 rcu_read_lock();
0e227084
JB		 7032 /* indicate whether we have probe response data or not */
7033 if (rcu_access_pointer(res->proberesp_ies) &&
7034 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7035 goto fail_unlock_rcu;
7036
7037 /* this pointer prefers to be pointed to probe response data
7038 * but is always valid
7039 */
9caf0364 7040 ies = rcu_dereference(res->ies);
8cef2c9d 7041 if (ies) {
2dad624e
ND		 7042 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7043 NL80211_BSS_PAD))
8cef2c9d 7044 goto fail_unlock_rcu;
8cef2c9d
JB		 7045 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7046 ies->len, ies->data))
7047 goto fail_unlock_rcu;
9caf0364 7048 }
0e227084
JB		 7049
7050 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 7051 ies = rcu_dereference(res->beacon_ies);
0e227084 7052 if (ies && ies->from_beacon) {
2dad624e
ND		 7053 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7054 NL80211_BSS_PAD))
8cef2c9d
JB		 7055 goto fail_unlock_rcu;
7056 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7057 ies->len, ies->data))
7058 goto fail_unlock_rcu;
9caf0364
JB		 7059 }
7060 rcu_read_unlock();
7061
9360ffd1
DM		 7062 if (res->beacon_interval &&
7063 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7064 goto nla_put_failure;
7065 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7066 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 7067 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 7068 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7069 jiffies_to_msecs(jiffies - intbss->ts)))
7070 goto nla_put_failure;
2a519311 7071
1d76250b
AS		 7072 if (intbss->parent_tsf &&
7073 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7074 intbss->parent_tsf, NL80211_BSS_PAD) ||
7075 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7076 intbss->parent_bssid)))
7077 goto nla_put_failure;
7078
6e19bc4b 7079 if (intbss->ts_boottime &&
2dad624e
ND		 7080 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7081 intbss->ts_boottime, NL80211_BSS_PAD))
6e19bc4b
DS		 7082 goto nla_put_failure;
7083
77965c97 7084 switch (rdev->wiphy.signal_type) {
2a519311 7085 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 7086 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7087 goto nla_put_failure;
2a519311
JB		 7088 break;
7089 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 7090 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7091 goto nla_put_failure;
2a519311
JB		 7092 break;
7093 default:
7094 break;
7095 }
7096
48ab905d 7097 switch (wdev->iftype) {
074ac8df 7098 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 7099 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 7100 if (intbss == wdev->current_bss &&
7101 nla_put_u32(msg, NL80211_BSS_STATUS,
7102 NL80211_BSS_STATUS_ASSOCIATED))
7103 goto nla_put_failure;
48ab905d
JB		 7104 break;
7105 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 7106 if (intbss == wdev->current_bss &&
7107 nla_put_u32(msg, NL80211_BSS_STATUS,
7108 NL80211_BSS_STATUS_IBSS_JOINED))
7109 goto nla_put_failure;
48ab905d
JB		 7110 break;
7111 default:
7112 break;
7113 }
7114
2a519311
JB		 7115 nla_nest_end(msg, bss);
7116
053c095a
JB		 7117 genlmsg_end(msg, hdr);
7118 return 0;
2a519311 7119
8cef2c9d
JB		 7120 fail_unlock_rcu:
7121 rcu_read_unlock();
2a519311
JB		 7122 nla_put_failure:
7123 genlmsg_cancel(msg, hdr);
7124 return -EMSGSIZE;
7125}
7126
97990a06 7127static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 7128{
48ab905d 7129 struct cfg80211_registered_device *rdev;
2a519311 7130 struct cfg80211_internal_bss *scan;
48ab905d 7131 struct wireless_dev *wdev;
97990a06 7132 int start = cb->args[2], idx = 0;
2a519311
JB		 7133 int err;
7134
97990a06 7135 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7136 if (err)
7137 return err;
2a519311 7138
48ab905d
JB		 7139 wdev_lock(wdev);
7140 spin_lock_bh(&rdev->bss_lock);
7141 cfg80211_bss_expire(rdev);
7142
9720bb3a
JB		 7143 cb->seq = rdev->bss_generation;
7144
48ab905d 7145 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 7146 if (++idx <= start)
7147 continue;
9720bb3a 7148 if (nl80211_send_bss(skb, cb,
2a519311 7149 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 7150 rdev, wdev, scan) < 0) {
2a519311 7151 idx--;
67748893 7152 break;
2a519311
JB		 7153 }
7154 }
7155
48ab905d
JB		 7156 spin_unlock_bh(&rdev->bss_lock);
7157 wdev_unlock(wdev);
2a519311 7158
97990a06
JB		 7159 cb->args[2] = idx;
7160 nl80211_finish_wdev_dump(rdev);
2a519311 7161
67748893 7162 return skb->len;
2a519311
JB		 7163}
7164
15e47304 7165static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7166 int flags, struct net_device *dev,
7167 bool allow_radio_stats,
7168 struct survey_info *survey)
61fa713c
HS		 7169{
7170 void *hdr;
7171 struct nlattr *infoattr;
7172
11f78ac3
JB		 7173 /* skip radio stats if userspace didn't request them */
7174 if (!survey->channel && !allow_radio_stats)
7175 return 0;
7176
15e47304 7177 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7178 NL80211_CMD_NEW_SURVEY_RESULTS);
7179 if (!hdr)
7180 return -ENOMEM;
7181
9360ffd1
DM		 7182 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7183 goto nla_put_failure;
61fa713c
HS		 7184
7185 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7186 if (!infoattr)
7187 goto nla_put_failure;
7188
11f78ac3
JB		 7189 if (survey->channel &&
7190 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7191 survey->channel->center_freq))
7192 goto nla_put_failure;
7193
7194 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7195 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7196 goto nla_put_failure;
7197 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7198 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7199 goto nla_put_failure;
4ed20beb 7200 if ((survey->filled & SURVEY_INFO_TIME) &&
2dad624e
ND		 7201 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7202 survey->time, NL80211_SURVEY_INFO_PAD))
9360ffd1 7203 goto nla_put_failure;
4ed20beb 7204 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
2dad624e
ND		 7205 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7206 survey->time_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7207 goto nla_put_failure;
4ed20beb 7208 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
2dad624e
ND		 7209 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7210 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7211 goto nla_put_failure;
4ed20beb 7212 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
2dad624e
ND		 7213 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7214 survey->time_rx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7215 goto nla_put_failure;
4ed20beb 7216 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
2dad624e
ND		 7217 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7218 survey->time_tx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7219 goto nla_put_failure;
052536ab 7220 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
2dad624e
ND		 7221 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7222 survey->time_scan, NL80211_SURVEY_INFO_PAD))
052536ab 7223 goto nla_put_failure;
61fa713c
HS		 7224
7225 nla_nest_end(msg, infoattr);
7226
053c095a
JB		 7227 genlmsg_end(msg, hdr);
7228 return 0;
61fa713c
HS		 7229
7230 nla_put_failure:
7231 genlmsg_cancel(msg, hdr);
7232 return -EMSGSIZE;
7233}
7234
11f78ac3 7235static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 7236{
7237 struct survey_info survey;
1b8ec87a 7238 struct cfg80211_registered_device *rdev;
97990a06
JB		 7239 struct wireless_dev *wdev;
7240 int survey_idx = cb->args[2];
61fa713c 7241 int res;
11f78ac3 7242 bool radio_stats;
61fa713c 7243
1b8ec87a 7244 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7245 if (res)
7246 return res;
61fa713c 7247
11f78ac3
JB		 7248 /* prepare_wdev_dump parsed the attributes */
7249 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
7250
97990a06
JB		 7251 if (!wdev->netdev) {
7252 res = -EINVAL;
7253 goto out_err;
7254 }
7255
1b8ec87a 7256 if (!rdev->ops->dump_survey) {
61fa713c
HS		 7257 res = -EOPNOTSUPP;
7258 goto out_err;
7259 }
7260
7261 while (1) {
1b8ec87a 7262 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 7263 if (res == -ENOENT)
7264 break;
7265 if (res)
7266 goto out_err;
7267
11f78ac3
JB		 7268 /* don't send disabled channels, but do send non-channel data */
7269 if (survey.channel &&
7270 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 7271 survey_idx++;
7272 continue;
7273 }
7274
61fa713c 7275 if (nl80211_send_survey(skb,
15e47304 7276 NETLINK_CB(cb->skb).portid,
61fa713c 7277 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 7278 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 7279 goto out;
7280 survey_idx++;
7281 }
7282
7283 out:
97990a06 7284 cb->args[2] = survey_idx;
61fa713c
HS		 7285 res = skb->len;
7286 out_err:
1b8ec87a 7287 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 7288 return res;
7289}
7290
b23aa676
SO		 7291static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7292{
7293 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7294 NL80211_WPA_VERSION_2));
7295}
7296
636a5d36
JM		 7297static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7298{
4c476991
JB		 7299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7300 struct net_device *dev = info->user_ptr[1];
19957bb3 7301 struct ieee80211_channel *chan;
e39e5b5e
JM		 7302 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7303 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 7304 enum nl80211_auth_type auth_type;
fffd0934 7305 struct key_parse key;
d5cdfacb 7306 bool local_state_change;
636a5d36 7307
f4a11bb0
JB		 7308 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7309 return -EINVAL;
7310
7311 if (!info->attrs[NL80211_ATTR_MAC])
7312 return -EINVAL;
7313
1778092e
JM		 7314 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7315 return -EINVAL;
7316
19957bb3
JB		 7317 if (!info->attrs[NL80211_ATTR_SSID])
7318 return -EINVAL;
7319
7320 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7321 return -EINVAL;
7322
fffd0934
JB		 7323 err = nl80211_parse_key(info, &key);
7324 if (err)
7325 return err;
7326
7327 if (key.idx >= 0) {
e31b8213
JB		 7328 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7329 return -EINVAL;
fffd0934
JB		 7330 if (!key.p.key || !key.p.key_len)
7331 return -EINVAL;
7332 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7333 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7334 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7335 key.p.key_len != WLAN_KEY_LEN_WEP104))
7336 return -EINVAL;
7337 if (key.idx > 4)
7338 return -EINVAL;
7339 } else {
7340 key.p.key_len = 0;
7341 key.p.key = NULL;
7342 }
7343
afea0b7a
JB		 7344 if (key.idx >= 0) {
7345 int i;
7346 bool ok = false;
7a087e74 7347
afea0b7a
JB		 7348 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7349 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7350 ok = true;
7351 break;
7352 }
7353 }
4c476991
JB		 7354 if (!ok)
7355 return -EINVAL;
afea0b7a
JB		 7356 }
7357
4c476991
JB		 7358 if (!rdev->ops->auth)
7359 return -EOPNOTSUPP;
636a5d36 7360
074ac8df 7361 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7362 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7363 return -EOPNOTSUPP;
eec60b03 7364
19957bb3 7365 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7366 chan = nl80211_get_valid_chan(&rdev->wiphy,
7367 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7368 if (!chan)
4c476991 7369 return -EINVAL;
636a5d36 7370
19957bb3
JB		 7371 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7372 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7373
7374 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7375 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7376 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7377 }
7378
19957bb3 7379 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7380 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7381 return -EINVAL;
636a5d36 7382
e39e5b5e
JM		 7383 if (auth_type == NL80211_AUTHTYPE_SAE &&
7384 !info->attrs[NL80211_ATTR_SAE_DATA])
7385 return -EINVAL;
7386
7387 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7388 if (auth_type != NL80211_AUTHTYPE_SAE)
7389 return -EINVAL;
7390 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7391 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7392 /* need to include at least Auth Transaction and Status Code */
7393 if (sae_data_len < 4)
7394 return -EINVAL;
7395 }
7396
d5cdfacb
JM		 7397 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7398
95de817b
JB		 7399 /*
7400 * Since we no longer track auth state, ignore
7401 * requests to only change local state.
7402 */
7403 if (local_state_change)
7404 return 0;
7405
91bf9b26
JB		 7406 wdev_lock(dev->ieee80211_ptr);
7407 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7408 ssid, ssid_len, ie, ie_len,
7409 key.p.key, key.p.key_len, key.idx,
7410 sae_data, sae_data_len);
7411 wdev_unlock(dev->ieee80211_ptr);
7412 return err;
636a5d36
JM		 7413}
7414
c0692b8f
JB		 7415static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7416 struct genl_info *info,
3dc27d25
JB		 7417 struct cfg80211_crypto_settings *settings,
7418 int cipher_limit)
b23aa676 7419{
c0b2bbd8
JB		 7420 memset(settings, 0, sizeof(*settings));
7421
b23aa676
SO		 7422 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7423
c0692b8f
JB		 7424 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7425 u16 proto;
7a087e74 7426
c0692b8f
JB		 7427 proto = nla_get_u16(
7428 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7429 settings->control_port_ethertype = cpu_to_be16(proto);
7430 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7431 proto != ETH_P_PAE)
7432 return -EINVAL;
7433 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7434 settings->control_port_no_encrypt = true;
7435 } else
7436 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7437
b23aa676
SO		 7438 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7439 void *data;
7440 int len, i;
7441
7442 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7443 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7444 settings->n_ciphers_pairwise = len / sizeof(u32);
7445
7446 if (len % sizeof(u32))
7447 return -EINVAL;
7448
3dc27d25 7449 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 7450 return -EINVAL;
7451
7452 memcpy(settings->ciphers_pairwise, data, len);
7453
7454 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 7455 if (!cfg80211_supported_cipher_suite(
7456 &rdev->wiphy,
b23aa676
SO		 7457 settings->ciphers_pairwise[i]))
7458 return -EINVAL;
7459 }
7460
7461 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7462 settings->cipher_group =
7463 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 7464 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7465 settings->cipher_group))
b23aa676
SO		 7466 return -EINVAL;
7467 }
7468
7469 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7470 settings->wpa_versions =
7471 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7472 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7473 return -EINVAL;
7474 }
7475
7476 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7477 void *data;
6d30240e 7478 int len;
b23aa676
SO		 7479
7480 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7481 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7482 settings->n_akm_suites = len / sizeof(u32);
7483
7484 if (len % sizeof(u32))
7485 return -EINVAL;
7486
1b9ca027
JM		 7487 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7488 return -EINVAL;
7489
b23aa676 7490 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 7491 }
7492
7493 return 0;
7494}
7495
636a5d36
JM		 7496static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7497{
4c476991
JB		 7498 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7499 struct net_device *dev = info->user_ptr[1];
f444de05 7500 struct ieee80211_channel *chan;
f62fab73
JB		 7501 struct cfg80211_assoc_request req = {};
7502 const u8 *bssid, *ssid;
7503 int err, ssid_len = 0;
636a5d36 7504
f4a11bb0
JB		 7505 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7506 return -EINVAL;
7507
7508 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7509 !info->attrs[NL80211_ATTR_SSID] ||
7510 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7511 return -EINVAL;
7512
4c476991
JB		 7513 if (!rdev->ops->assoc)
7514 return -EOPNOTSUPP;
636a5d36 7515
074ac8df 7516 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7517 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7518 return -EOPNOTSUPP;
eec60b03 7519
19957bb3 7520 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7521
664834de
JM		 7522 chan = nl80211_get_valid_chan(&rdev->wiphy,
7523 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7524 if (!chan)
4c476991 7525 return -EINVAL;
636a5d36 7526
19957bb3
JB		 7527 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7528 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7529
7530 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7531 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7532 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7533 }
7534
dc6382ce 7535 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7536 enum nl80211_mfp mfp =
dc6382ce 7537 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7538 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7539 req.use_mfp = true;
4c476991
JB		 7540 else if (mfp != NL80211_MFP_NO)
7541 return -EINVAL;
dc6382ce
JM		 7542 }
7543
3e5d7649 7544 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7545 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7546
7e7c8926 7547 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7548 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7549
7550 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7551 memcpy(&req.ht_capa_mask,
7552 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7553 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7554
7555 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7556 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7557 return -EINVAL;
f62fab73
JB		 7558 memcpy(&req.ht_capa,
7559 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7560 sizeof(req.ht_capa));
7e7c8926
BG		 7561 }
7562
ee2aca34 7563 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7564 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7565
7566 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7567 memcpy(&req.vht_capa_mask,
7568 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7569 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7570
7571 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7572 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7573 return -EINVAL;
f62fab73
JB		 7574 memcpy(&req.vht_capa,
7575 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7576 sizeof(req.vht_capa));
ee2aca34
JB		 7577 }
7578
bab5ab7d 7579 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 7580 if (!((rdev->wiphy.features &
7581 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
7582 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
7583 !wiphy_ext_feature_isset(&rdev->wiphy,
7584 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 7585 return -EINVAL;
7586 req.flags |= ASSOC_REQ_USE_RRM;
7587 }
7588
f62fab73 7589 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7590 if (!err) {
7591 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7592 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7593 ssid, ssid_len, &req);
91bf9b26
JB		 7594 wdev_unlock(dev->ieee80211_ptr);
7595 }
636a5d36 7596
636a5d36
JM		 7597 return err;
7598}
7599
7600static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7601{
4c476991
JB		 7602 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7603 struct net_device *dev = info->user_ptr[1];
19957bb3 7604 const u8 *ie = NULL, *bssid;
91bf9b26 7605 int ie_len = 0, err;
19957bb3 7606 u16 reason_code;
d5cdfacb 7607 bool local_state_change;
636a5d36 7608
f4a11bb0
JB		 7609 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7610 return -EINVAL;
7611
7612 if (!info->attrs[NL80211_ATTR_MAC])
7613 return -EINVAL;
7614
7615 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7616 return -EINVAL;
7617
4c476991
JB		 7618 if (!rdev->ops->deauth)
7619 return -EOPNOTSUPP;
636a5d36 7620
074ac8df 7621 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7622 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7623 return -EOPNOTSUPP;
eec60b03 7624
19957bb3 7625 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7626
19957bb3
JB		 7627 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7628 if (reason_code == 0) {
f4a11bb0 7629 /* Reason Code 0 is reserved */
4c476991 7630 return -EINVAL;
255e737e 7631 }
636a5d36
JM		 7632
7633 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7634 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7635 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7636 }
7637
d5cdfacb
JM		 7638 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7639
91bf9b26
JB		 7640 wdev_lock(dev->ieee80211_ptr);
7641 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7642 local_state_change);
7643 wdev_unlock(dev->ieee80211_ptr);
7644 return err;
636a5d36
JM		 7645}
7646
7647static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7648{
4c476991
JB		 7649 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7650 struct net_device *dev = info->user_ptr[1];
19957bb3 7651 const u8 *ie = NULL, *bssid;
91bf9b26 7652 int ie_len = 0, err;
19957bb3 7653 u16 reason_code;
d5cdfacb 7654 bool local_state_change;
636a5d36 7655
f4a11bb0
JB		 7656 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7657 return -EINVAL;
7658
7659 if (!info->attrs[NL80211_ATTR_MAC])
7660 return -EINVAL;
7661
7662 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7663 return -EINVAL;
7664
4c476991
JB		 7665 if (!rdev->ops->disassoc)
7666 return -EOPNOTSUPP;
636a5d36 7667
074ac8df 7668 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7669 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7670 return -EOPNOTSUPP;
eec60b03 7671
19957bb3 7672 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7673
19957bb3
JB		 7674 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7675 if (reason_code == 0) {
f4a11bb0 7676 /* Reason Code 0 is reserved */
4c476991 7677 return -EINVAL;
255e737e 7678 }
636a5d36
JM		 7679
7680 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7681 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7682 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7683 }
7684
d5cdfacb
JM		 7685 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7686
91bf9b26
JB		 7687 wdev_lock(dev->ieee80211_ptr);
7688 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7689 local_state_change);
7690 wdev_unlock(dev->ieee80211_ptr);
7691 return err;
636a5d36
JM		 7692}
7693
dd5b4cc7
FF		 7694static bool
7695nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
57fbcce3 7696 int mcast_rate[NUM_NL80211_BANDS],
dd5b4cc7
FF		 7697 int rateval)
7698{
7699 struct wiphy *wiphy = &rdev->wiphy;
7700 bool found = false;
7701 int band, i;
7702
57fbcce3 7703 for (band = 0; band < NUM_NL80211_BANDS; band++) {
dd5b4cc7
FF		 7704 struct ieee80211_supported_band *sband;
7705
7706 sband = wiphy->bands[band];
7707 if (!sband)
7708 continue;
7709
7710 for (i = 0; i < sband->n_bitrates; i++) {
7711 if (sband->bitrates[i].bitrate == rateval) {
7712 mcast_rate[band] = i + 1;
7713 found = true;
7714 break;
7715 }
7716 }
7717 }
7718
7719 return found;
7720}
7721
04a773ad
JB		 7722static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7723{
4c476991
JB		 7724 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7725 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7726 struct cfg80211_ibss_params ibss;
7727 struct wiphy *wiphy;
fffd0934 7728 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7729 int err;
7730
8e30bc55
JB		 7731 memset(&ibss, 0, sizeof(ibss));
7732
04a773ad
JB		 7733 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7734 return -EINVAL;
7735
683b6d3b 7736 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7737 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7738 return -EINVAL;
7739
8e30bc55
JB		 7740 ibss.beacon_interval = 100;
7741
7742 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7743 ibss.beacon_interval =
7744 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7745 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7746 return -EINVAL;
7747 }
7748
4c476991
JB		 7749 if (!rdev->ops->join_ibss)
7750 return -EOPNOTSUPP;
04a773ad 7751
4c476991
JB		 7752 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7753 return -EOPNOTSUPP;
04a773ad 7754
79c97e97 7755 wiphy = &rdev->wiphy;
04a773ad 7756
39193498 7757 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7758 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7759
7760 if (!is_valid_ether_addr(ibss.bssid))
7761 return -EINVAL;
7762 }
04a773ad
JB		 7763 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7764 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7765
7766 if (info->attrs[NL80211_ATTR_IE]) {
7767 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7768 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7769 }
7770
683b6d3b
JB		 7771 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7772 if (err)
7773 return err;
04a773ad 7774
174e0cd2
IP		 7775 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7776 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7777 return -EINVAL;
7778
2f301ab2 7779 switch (ibss.chandef.width) {
bf372645
SW		 7780 case NL80211_CHAN_WIDTH_5:
7781 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7782 case NL80211_CHAN_WIDTH_20_NOHT:
7783 break;
7784 case NL80211_CHAN_WIDTH_20:
7785 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 7786 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7787 return -EINVAL;
7788 break;
7789 case NL80211_CHAN_WIDTH_80:
7790 case NL80211_CHAN_WIDTH_80P80:
7791 case NL80211_CHAN_WIDTH_160:
7792 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7793 return -EINVAL;
7794 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7795 NL80211_EXT_FEATURE_VHT_IBSS))
7796 return -EINVAL;
7797 break;
2f301ab2 7798 default:
c04d6150 7799 return -EINVAL;
2f301ab2 7800 }
db9c64cf 7801
04a773ad 7802 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7803 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7804
fbd2c8dc
TP		 7805 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7806 u8 *rates =
7807 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7808 int n_rates =
7809 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7810 struct ieee80211_supported_band *sband =
683b6d3b 7811 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7812
34850ab2
JB		 7813 err = ieee80211_get_ratemask(sband, rates, n_rates,
7814 &ibss.basic_rates);
7815 if (err)
7816 return err;
fbd2c8dc 7817 }
dd5b4cc7 7818
803768f5
SW		 7819 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7820 memcpy(&ibss.ht_capa_mask,
7821 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7822 sizeof(ibss.ht_capa_mask));
7823
7824 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7825 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7826 return -EINVAL;
7827 memcpy(&ibss.ht_capa,
7828 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7829 sizeof(ibss.ht_capa));
7830 }
7831
dd5b4cc7
FF		 7832 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7833 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7834 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7835 return -EINVAL;
fbd2c8dc 7836
4c476991 7837 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7838 bool no_ht = false;
7839
4c476991 7840 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7841 info->attrs[NL80211_ATTR_KEYS],
7842 &no_ht);
4c476991
JB		 7843 if (IS_ERR(connkeys))
7844 return PTR_ERR(connkeys);
de7044ee 7845
3d9d1d66
JB		 7846 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7847 no_ht) {
5e950a78 7848 kzfree(connkeys);
de7044ee
SM		 7849 return -EINVAL;
7850 }
4c476991 7851 }
04a773ad 7852
267335d6
AQ		 7853 ibss.control_port =
7854 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7855
5336fa88
SW		 7856 ibss.userspace_handles_dfs =
7857 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7858
4c476991 7859 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7860 if (err)
b47f610b 7861 kzfree(connkeys);
04a773ad
JB		 7862 return err;
7863}
7864
7865static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7866{
4c476991
JB		 7867 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7868 struct net_device *dev = info->user_ptr[1];
04a773ad 7869
4c476991
JB		 7870 if (!rdev->ops->leave_ibss)
7871 return -EOPNOTSUPP;
04a773ad 7872
4c476991
JB		 7873 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7874 return -EOPNOTSUPP;
04a773ad 7875
4c476991 7876 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7877}
7878
f4e583c8
AQ		 7879static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7880{
7881 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7882 struct net_device *dev = info->user_ptr[1];
57fbcce3 7883 int mcast_rate[NUM_NL80211_BANDS];
f4e583c8
AQ		 7884 u32 nla_rate;
7885 int err;
7886
7887 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 7888 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7889 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 7890 return -EOPNOTSUPP;
7891
7892 if (!rdev->ops->set_mcast_rate)
7893 return -EOPNOTSUPP;
7894
7895 memset(mcast_rate, 0, sizeof(mcast_rate));
7896
7897 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7898 return -EINVAL;
7899
7900 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7901 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7902 return -EINVAL;
7903
a1056b1b 7904 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 7905
7906 return err;
7907}
7908
ad7e718c
JB		 7909static struct sk_buff *
7910__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 7911 struct wireless_dev *wdev, int approxlen,
7912 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 7913 enum nl80211_attrs attr,
7914 const struct nl80211_vendor_cmd_info *info,
7915 gfp_t gfp)
ad7e718c
JB		 7916{
7917 struct sk_buff *skb;
7918 void *hdr;
7919 struct nlattr *data;
7920
7921 skb = nlmsg_new(approxlen + 100, gfp);
7922 if (!skb)
7923 return NULL;
7924
7925 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7926 if (!hdr) {
7927 kfree_skb(skb);
7928 return NULL;
7929 }
7930
7931 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7932 goto nla_put_failure;
567ffc35
JB		 7933
7934 if (info) {
7935 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7936 info->vendor_id))
7937 goto nla_put_failure;
7938 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7939 info->subcmd))
7940 goto nla_put_failure;
7941 }
7942
6c09e791 7943 if (wdev) {
2dad624e
ND		 7944 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
7945 wdev_id(wdev), NL80211_ATTR_PAD))
6c09e791
AK		 7946 goto nla_put_failure;
7947 if (wdev->netdev &&
7948 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7949 wdev->netdev->ifindex))
7950 goto nla_put_failure;
7951 }
7952
ad7e718c
JB		 7953 data = nla_nest_start(skb, attr);
7954
7955 ((void **)skb->cb)[0] = rdev;
7956 ((void **)skb->cb)[1] = hdr;
7957 ((void **)skb->cb)[2] = data;
7958
7959 return skb;
7960
7961 nla_put_failure:
7962 kfree_skb(skb);
7963 return NULL;
7964}
f4e583c8 7965
e03ad6ea 7966struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 7967 struct wireless_dev *wdev,
e03ad6ea
JB		 7968 enum nl80211_commands cmd,
7969 enum nl80211_attrs attr,
7970 int vendor_event_idx,
7971 int approxlen, gfp_t gfp)
7972{
f26cbf40 7973 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7974 const struct nl80211_vendor_cmd_info *info;
7975
7976 switch (cmd) {
7977 case NL80211_CMD_TESTMODE:
7978 if (WARN_ON(vendor_event_idx != -1))
7979 return NULL;
7980 info = NULL;
7981 break;
7982 case NL80211_CMD_VENDOR:
7983 if (WARN_ON(vendor_event_idx < 0 ||
7984 vendor_event_idx >= wiphy->n_vendor_events))
7985 return NULL;
7986 info = &wiphy->vendor_events[vendor_event_idx];
7987 break;
7988 default:
7989 WARN_ON(1);
7990 return NULL;
7991 }
7992
6c09e791 7993 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 7994 cmd, attr, info, gfp);
7995}
7996EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7997
7998void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7999{
8000 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8001 void *hdr = ((void **)skb->cb)[1];
8002 struct nlattr *data = ((void **)skb->cb)[2];
8003 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8004
bd8c78e7
JB		 8005 /* clear CB data for netlink core to own from now on */
8006 memset(skb->cb, 0, sizeof(skb->cb));
8007
e03ad6ea
JB		 8008 nla_nest_end(skb, data);
8009 genlmsg_end(skb, hdr);
8010
8011 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8012 mcgrp = NL80211_MCGRP_VENDOR;
8013
8014 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8015 mcgrp, gfp);
8016}
8017EXPORT_SYMBOL(__cfg80211_send_event_skb);
8018
aff89a9b 8019#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 8020static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8021{
4c476991 8022 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 8023 struct wireless_dev *wdev =
8024 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 8025 int err;
8026
fc73f11f
DS		 8027 if (!rdev->ops->testmode_cmd)
8028 return -EOPNOTSUPP;
8029
8030 if (IS_ERR(wdev)) {
8031 err = PTR_ERR(wdev);
8032 if (err != -EINVAL)
8033 return err;
8034 wdev = NULL;
8035 } else if (wdev->wiphy != &rdev->wiphy) {
8036 return -EINVAL;
8037 }
8038
aff89a9b
JB		 8039 if (!info->attrs[NL80211_ATTR_TESTDATA])
8040 return -EINVAL;
8041
ad7e718c 8042 rdev->cur_cmd_info = info;
fc73f11f 8043 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 8044 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8045 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 8046 rdev->cur_cmd_info = NULL;
aff89a9b 8047
aff89a9b
JB		 8048 return err;
8049}
8050
71063f0e
WYG		 8051static int nl80211_testmode_dump(struct sk_buff *skb,
8052 struct netlink_callback *cb)
8053{
00918d33 8054 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 8055 int err;
8056 long phy_idx;
8057 void *data = NULL;
8058 int data_len = 0;
8059
5fe231e8
JB		 8060 rtnl_lock();
8061
71063f0e
WYG		 8062 if (cb->args[0]) {
8063 /*
8064 * 0 is a valid index, but not valid for args[0],
8065 * so we need to offset by 1.
8066 */
8067 phy_idx = cb->args[0] - 1;
8068 } else {
8069 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
8070 nl80211_fam.attrbuf, nl80211_fam.maxattr,
8071 nl80211_policy);
8072 if (err)
5fe231e8 8073 goto out_err;
00918d33 8074
2bd7e35d
JB		 8075 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
8076 nl80211_fam.attrbuf);
8077 if (IS_ERR(rdev)) {
5fe231e8
JB		 8078 err = PTR_ERR(rdev);
8079 goto out_err;
00918d33 8080 }
2bd7e35d
JB		 8081 phy_idx = rdev->wiphy_idx;
8082 rdev = NULL;
2bd7e35d 8083
71063f0e
WYG		 8084 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
8085 cb->args[1] =
8086 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
8087 }
8088
8089 if (cb->args[1]) {
8090 data = nla_data((void *)cb->args[1]);
8091 data_len = nla_len((void *)cb->args[1]);
8092 }
8093
00918d33
JB		 8094 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8095 if (!rdev) {
5fe231e8
JB		 8096 err = -ENOENT;
8097 goto out_err;
71063f0e 8098 }
71063f0e 8099
00918d33 8100 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 8101 err = -EOPNOTSUPP;
8102 goto out_err;
8103 }
8104
8105 while (1) {
15e47304 8106 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 8107 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8108 NL80211_CMD_TESTMODE);
8109 struct nlattr *tmdata;
8110
cb35fba3
DC		 8111 if (!hdr)
8112 break;
8113
9360ffd1 8114 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 8115 genlmsg_cancel(skb, hdr);
8116 break;
8117 }
8118
8119 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8120 if (!tmdata) {
8121 genlmsg_cancel(skb, hdr);
8122 break;
8123 }
e35e4d28 8124 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 8125 nla_nest_end(skb, tmdata);
8126
8127 if (err == -ENOBUFS || err == -ENOENT) {
8128 genlmsg_cancel(skb, hdr);
8129 break;
8130 } else if (err) {
8131 genlmsg_cancel(skb, hdr);
8132 goto out_err;
8133 }
8134
8135 genlmsg_end(skb, hdr);
8136 }
8137
8138 err = skb->len;
8139 /* see above */
8140 cb->args[0] = phy_idx + 1;
8141 out_err:
5fe231e8 8142 rtnl_unlock();
71063f0e
WYG		 8143 return err;
8144}
aff89a9b
JB		 8145#endif
8146
b23aa676
SO		 8147static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8148{
4c476991
JB		 8149 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8150 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 8151 struct cfg80211_connect_params connect;
8152 struct wiphy *wiphy;
fffd0934 8153 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 8154 int err;
8155
8156 memset(&connect, 0, sizeof(connect));
8157
8158 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8159 return -EINVAL;
8160
8161 if (!info->attrs[NL80211_ATTR_SSID] ||
8162 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8163 return -EINVAL;
8164
8165 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8166 connect.auth_type =
8167 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8168 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8169 NL80211_CMD_CONNECT))
b23aa676
SO		 8170 return -EINVAL;
8171 } else
8172 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8173
8174 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8175
c0692b8f 8176 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8177 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8178 if (err)
8179 return err;
b23aa676 8180
074ac8df 8181 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8182 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8183 return -EOPNOTSUPP;
b23aa676 8184
79c97e97 8185 wiphy = &rdev->wiphy;
b23aa676 8186
4486ea98
BS		 8187 connect.bg_scan_period = -1;
8188 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8189 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8190 connect.bg_scan_period =
8191 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8192 }
8193
b23aa676
SO		 8194 if (info->attrs[NL80211_ATTR_MAC])
8195 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8196 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8197 connect.bssid_hint =
8198 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8199 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8200 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8201
8202 if (info->attrs[NL80211_ATTR_IE]) {
8203 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8204 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8205 }
8206
cee00a95
JM		 8207 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8208 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8209 if (connect.mfp != NL80211_MFP_REQUIRED &&
8210 connect.mfp != NL80211_MFP_NO)
8211 return -EINVAL;
8212 } else {
8213 connect.mfp = NL80211_MFP_NO;
8214 }
8215
ba6fbacf
JM		 8216 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8217 connect.prev_bssid =
8218 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8219
b23aa676 8220 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 8221 connect.channel = nl80211_get_valid_chan(
8222 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8223 if (!connect.channel)
1df4a510
JM		 8224 return -EINVAL;
8225 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 8226 connect.channel_hint = nl80211_get_valid_chan(
8227 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8228 if (!connect.channel_hint)
4c476991 8229 return -EINVAL;
b23aa676
SO		 8230 }
8231
fffd0934
JB		 8232 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8233 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 8234 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 8235 if (IS_ERR(connkeys))
8236 return PTR_ERR(connkeys);
fffd0934
JB		 8237 }
8238
7e7c8926
BG		 8239 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8240 connect.flags |= ASSOC_REQ_DISABLE_HT;
8241
8242 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8243 memcpy(&connect.ht_capa_mask,
8244 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8245 sizeof(connect.ht_capa_mask));
8246
8247 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 8248 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 8249 kzfree(connkeys);
7e7c8926 8250 return -EINVAL;
b4e4f47e 8251 }
7e7c8926
BG		 8252 memcpy(&connect.ht_capa,
8253 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8254 sizeof(connect.ht_capa));
8255 }
8256
ee2aca34
JB		 8257 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8258 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8259
8260 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8261 memcpy(&connect.vht_capa_mask,
8262 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8263 sizeof(connect.vht_capa_mask));
8264
8265 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8266 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 8267 kzfree(connkeys);
ee2aca34
JB		 8268 return -EINVAL;
8269 }
8270 memcpy(&connect.vht_capa,
8271 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8272 sizeof(connect.vht_capa));
8273 }
8274
bab5ab7d 8275 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8276 if (!((rdev->wiphy.features &
8277 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8278 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8279 !wiphy_ext_feature_isset(&rdev->wiphy,
8280 NL80211_EXT_FEATURE_RRM)) {
707554b4 8281 kzfree(connkeys);
bab5ab7d 8282 return -EINVAL;
707554b4 8283 }
bab5ab7d
AK		 8284 connect.flags |= ASSOC_REQ_USE_RRM;
8285 }
8286
34d50519 8287 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 8288 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
34d50519
LD		 8289 kzfree(connkeys);
8290 return -EOPNOTSUPP;
8291 }
8292
38de03d2
AS		 8293 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8294 /* bss selection makes no sense if bssid is set */
8295 if (connect.bssid) {
8296 kzfree(connkeys);
8297 return -EINVAL;
8298 }
8299
8300 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8301 wiphy, &connect.bss_select);
8302 if (err) {
8303 kzfree(connkeys);
8304 return err;
8305 }
8306 }
8307
83739b03 8308 wdev_lock(dev->ieee80211_ptr);
4ce2bd9c
JM		 8309 err = cfg80211_connect(rdev, dev, &connect, connkeys,
8310 connect.prev_bssid);
83739b03 8311 wdev_unlock(dev->ieee80211_ptr);
fffd0934 8312 if (err)
b47f610b 8313 kzfree(connkeys);
b23aa676
SO		 8314 return err;
8315}
8316
8317static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8318{
4c476991
JB		 8319 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8320 struct net_device *dev = info->user_ptr[1];
b23aa676 8321 u16 reason;
83739b03 8322 int ret;
b23aa676
SO		 8323
8324 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8325 reason = WLAN_REASON_DEAUTH_LEAVING;
8326 else
8327 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8328
8329 if (reason == 0)
8330 return -EINVAL;
8331
074ac8df 8332 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8333 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8334 return -EOPNOTSUPP;
b23aa676 8335
83739b03
JB		 8336 wdev_lock(dev->ieee80211_ptr);
8337 ret = cfg80211_disconnect(rdev, dev, reason, true);
8338 wdev_unlock(dev->ieee80211_ptr);
8339 return ret;
b23aa676
SO		 8340}
8341
463d0183
JB		 8342static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8343{
4c476991 8344 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 8345 struct net *net;
8346 int err;
463d0183 8347
4b681c82
VK		 8348 if (info->attrs[NL80211_ATTR_PID]) {
8349 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8350
8351 net = get_net_ns_by_pid(pid);
8352 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8353 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 8354
4b681c82
VK		 8355 net = get_net_ns_by_fd(fd);
8356 } else {
8357 return -EINVAL;
8358 }
463d0183 8359
4c476991
JB		 8360 if (IS_ERR(net))
8361 return PTR_ERR(net);
463d0183
JB		 8362
8363 err = 0;
8364
8365 /* check if anything to do */
4c476991
JB		 8366 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8367 err = cfg80211_switch_netns(rdev, net);
463d0183 8368
463d0183 8369 put_net(net);
463d0183
JB		 8370 return err;
8371}
8372
67fbb16b
SO		 8373static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8374{
4c476991 8375 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 8376 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8377 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 8378 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 8379 struct cfg80211_pmksa pmksa;
8380
8381 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8382
8383 if (!info->attrs[NL80211_ATTR_MAC])
8384 return -EINVAL;
8385
8386 if (!info->attrs[NL80211_ATTR_PMKID])
8387 return -EINVAL;
8388
67fbb16b
SO		 8389 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8390 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8391
074ac8df 8392 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8393 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8394 return -EOPNOTSUPP;
67fbb16b
SO		 8395
8396 switch (info->genlhdr->cmd) {
8397 case NL80211_CMD_SET_PMKSA:
8398 rdev_ops = rdev->ops->set_pmksa;
8399 break;
8400 case NL80211_CMD_DEL_PMKSA:
8401 rdev_ops = rdev->ops->del_pmksa;
8402 break;
8403 default:
8404 WARN_ON(1);
8405 break;
8406 }
8407
4c476991
JB		 8408 if (!rdev_ops)
8409 return -EOPNOTSUPP;
67fbb16b 8410
4c476991 8411 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 8412}
8413
8414static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8415{
4c476991
JB		 8416 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8417 struct net_device *dev = info->user_ptr[1];
67fbb16b 8418
074ac8df 8419 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8420 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8421 return -EOPNOTSUPP;
67fbb16b 8422
4c476991
JB		 8423 if (!rdev->ops->flush_pmksa)
8424 return -EOPNOTSUPP;
67fbb16b 8425
e35e4d28 8426 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 8427}
8428
109086ce
AN		 8429static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8430{
8431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8432 struct net_device *dev = info->user_ptr[1];
8433 u8 action_code, dialog_token;
df942e7b 8434 u32 peer_capability = 0;
109086ce
AN		 8435 u16 status_code;
8436 u8 *peer;
31fa97c5 8437 bool initiator;
109086ce
AN		 8438
8439 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8440 !rdev->ops->tdls_mgmt)
8441 return -EOPNOTSUPP;
8442
8443 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8444 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8445 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8446 !info->attrs[NL80211_ATTR_IE] ||
8447 !info->attrs[NL80211_ATTR_MAC])
8448 return -EINVAL;
8449
8450 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8451 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8452 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8453 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 8454 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 8455 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8456 peer_capability =
8457 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 8458
e35e4d28 8459 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 8460 dialog_token, status_code, peer_capability,
31fa97c5 8461 initiator,
e35e4d28
HG		 8462 nla_data(info->attrs[NL80211_ATTR_IE]),
8463 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 8464}
8465
8466static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8467{
8468 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8469 struct net_device *dev = info->user_ptr[1];
8470 enum nl80211_tdls_operation operation;
8471 u8 *peer;
8472
8473 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8474 !rdev->ops->tdls_oper)
8475 return -EOPNOTSUPP;
8476
8477 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8478 !info->attrs[NL80211_ATTR_MAC])
8479 return -EINVAL;
8480
8481 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8482 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8483
e35e4d28 8484 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 8485}
8486
9588bbd5
JM		 8487static int nl80211_remain_on_channel(struct sk_buff *skb,
8488 struct genl_info *info)
8489{
4c476991 8490 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8491 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8492 struct cfg80211_chan_def chandef;
9588bbd5
JM		 8493 struct sk_buff *msg;
8494 void *hdr;
8495 u64 cookie;
683b6d3b 8496 u32 duration;
9588bbd5
JM		 8497 int err;
8498
8499 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8500 !info->attrs[NL80211_ATTR_DURATION])
8501 return -EINVAL;
8502
8503 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8504
ebf348fc
JB		 8505 if (!rdev->ops->remain_on_channel ||
8506 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8507 return -EOPNOTSUPP;
8508
9588bbd5 8509 /*
ebf348fc
JB		 8510 * We should be on that channel for at least a minimum amount of
8511 * time (10ms) but no longer than the driver supports.
9588bbd5 8512 */
ebf348fc 8513 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 8514 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 8515 return -EINVAL;
8516
683b6d3b
JB		 8517 err = nl80211_parse_chandef(rdev, info, &chandef);
8518 if (err)
8519 return err;
9588bbd5
JM		 8520
8521 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8522 if (!msg)
8523 return -ENOMEM;
9588bbd5 8524
15e47304 8525 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 8526 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 8527 if (!hdr) {
8528 err = -ENOBUFS;
9588bbd5
JM		 8529 goto free_msg;
8530 }
8531
683b6d3b
JB		 8532 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8533 duration, &cookie);
9588bbd5
JM		 8534
8535 if (err)
8536 goto free_msg;
8537
2dad624e
ND		 8538 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
8539 NL80211_ATTR_PAD))
9360ffd1 8540 goto nla_put_failure;
9588bbd5
JM		 8541
8542 genlmsg_end(msg, hdr);
4c476991
JB		 8543
8544 return genlmsg_reply(msg, info);
9588bbd5
JM		 8545
8546 nla_put_failure:
8547 err = -ENOBUFS;
8548 free_msg:
8549 nlmsg_free(msg);
9588bbd5
JM		 8550 return err;
8551}
8552
8553static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8554 struct genl_info *info)
8555{
4c476991 8556 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8557 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8558 u64 cookie;
9588bbd5
JM		 8559
8560 if (!info->attrs[NL80211_ATTR_COOKIE])
8561 return -EINVAL;
8562
4c476991
JB		 8563 if (!rdev->ops->cancel_remain_on_channel)
8564 return -EOPNOTSUPP;
9588bbd5 8565
9588bbd5
JM		 8566 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8567
e35e4d28 8568 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8569}
8570
13ae75b1
JM		 8571static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8572 u8 *rates, u8 rates_len)
8573{
8574 u8 i;
8575 u32 mask = 0;
8576
8577 for (i = 0; i < rates_len; i++) {
8578 int rate = (rates[i] & 0x7f) * 5;
8579 int ridx;
7a087e74 8580
13ae75b1
JM		 8581 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8582 struct ieee80211_rate *srate =
8583 &sband->bitrates[ridx];
8584 if (rate == srate->bitrate) {
8585 mask |= 1 << ridx;
8586 break;
8587 }
8588 }
8589 if (ridx == sband->n_bitrates)
8590 return 0; /* rate not found */
8591 }
8592
8593 return mask;
8594}
8595
24db78c0
SW		 8596static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8597 u8 *rates, u8 rates_len,
8598 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8599{
8600 u8 i;
8601
8602 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8603
8604 for (i = 0; i < rates_len; i++) {
8605 int ridx, rbit;
8606
8607 ridx = rates[i] / 8;
8608 rbit = BIT(rates[i] % 8);
8609
8610 /* check validity */
910570b5 8611 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8612 return false;
8613
8614 /* check availability */
8615 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8616 mcs[ridx] |= rbit;
8617 else
8618 return false;
8619 }
8620
8621 return true;
8622}
8623
204e35a9
JD		 8624static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8625{
8626 u16 mcs_mask = 0;
8627
8628 switch (vht_mcs_map) {
8629 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8630 break;
8631 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8632 mcs_mask = 0x00FF;
8633 break;
8634 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8635 mcs_mask = 0x01FF;
8636 break;
8637 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8638 mcs_mask = 0x03FF;
8639 break;
8640 default:
8641 break;
8642 }
8643
8644 return mcs_mask;
8645}
8646
8647static void vht_build_mcs_mask(u16 vht_mcs_map,
8648 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8649{
8650 u8 nss;
8651
8652 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8653 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8654 vht_mcs_map >>= 2;
8655 }
8656}
8657
8658static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8659 struct nl80211_txrate_vht *txrate,
8660 u16 mcs[NL80211_VHT_NSS_MAX])
8661{
8662 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8663 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8664 u8 i;
8665
8666 if (!sband->vht_cap.vht_supported)
8667 return false;
8668
8669 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8670
8671 /* Build vht_mcs_mask from VHT capabilities */
8672 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8673
8674 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8675 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8676 mcs[i] = txrate->mcs[i];
8677 else
8678 return false;
8679 }
8680
8681 return true;
8682}
8683
b54452b0 8684static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8685 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8686 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8687 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8688 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8689 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8690 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8691};
8692
8693static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8694 struct genl_info *info)
8695{
8696 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8697 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8698 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8699 int rem, i;
8700 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8701 struct nlattr *tx_rates;
8702 struct ieee80211_supported_band *sband;
204e35a9 8703 u16 vht_tx_mcs_map;
13ae75b1 8704
4c476991
JB		 8705 if (!rdev->ops->set_bitrate_mask)
8706 return -EOPNOTSUPP;
13ae75b1
JM		 8707
8708 memset(&mask, 0, sizeof(mask));
8709 /* Default to all rates enabled */
57fbcce3 8710 for (i = 0; i < NUM_NL80211_BANDS; i++) {
13ae75b1 8711 sband = rdev->wiphy.bands[i];
7869303b
JD		 8712
8713 if (!sband)
8714 continue;
8715
8716 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8717 memcpy(mask.control[i].ht_mcs,
7869303b 8718 sband->ht_cap.mcs.rx_mask,
d1e33e65 8719 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8720
8721 if (!sband->vht_cap.vht_supported)
8722 continue;
8723
8724 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8725 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8726 }
8727
b9243ab0
JD		 8728 /* if no rates are given set it back to the defaults */
8729 if (!info->attrs[NL80211_ATTR_TX_RATES])
8730 goto out;
8731
13ae75b1
JM		 8732 /*
8733 * The nested attribute uses enum nl80211_band as the index. This maps
57fbcce3 8734 * directly to the enum nl80211_band values used in cfg80211.
13ae75b1 8735 */
24db78c0 8736 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8737 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
57fbcce3 8738 enum nl80211_band band = nla_type(tx_rates);
ae811e21
JB		 8739 int err;
8740
57fbcce3 8741 if (band < 0 || band >= NUM_NL80211_BANDS)
4c476991 8742 return -EINVAL;
13ae75b1 8743 sband = rdev->wiphy.bands[band];
4c476991
JB		 8744 if (sband == NULL)
8745 return -EINVAL;
ae811e21
JB		 8746 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8747 nla_len(tx_rates), nl80211_txattr_policy);
8748 if (err)
8749 return err;
13ae75b1
JM		 8750 if (tb[NL80211_TXRATE_LEGACY]) {
8751 mask.control[band].legacy = rateset_to_mask(
8752 sband,
8753 nla_data(tb[NL80211_TXRATE_LEGACY]),
8754 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8755 if ((mask.control[band].legacy == 0) &&
8756 nla_len(tb[NL80211_TXRATE_LEGACY]))
8757 return -EINVAL;
24db78c0 8758 }
d1e33e65 8759 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8760 if (!ht_rateset_to_mask(
8761 sband,
d1e33e65
JD		 8762 nla_data(tb[NL80211_TXRATE_HT]),
8763 nla_len(tb[NL80211_TXRATE_HT]),
8764 mask.control[band].ht_mcs))
24db78c0
SW		 8765 return -EINVAL;
8766 }
204e35a9
JD		 8767 if (tb[NL80211_TXRATE_VHT]) {
8768 if (!vht_set_mcs_mask(
8769 sband,
8770 nla_data(tb[NL80211_TXRATE_VHT]),
8771 mask.control[band].vht_mcs))
8772 return -EINVAL;
8773 }
0b9323f6
JD		 8774 if (tb[NL80211_TXRATE_GI]) {
8775 mask.control[band].gi =
8776 nla_get_u8(tb[NL80211_TXRATE_GI]);
8777 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8778 return -EINVAL;
8779 }
24db78c0
SW		 8780
8781 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8782 /* don't allow empty legacy rates if HT or VHT
8783 * are not even supported.
8784 */
8785 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8786 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8787 return -EINVAL;
8788
8789 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8790 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8791 goto out;
8792
8793 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8794 if (mask.control[band].vht_mcs[i])
8795 goto out;
24db78c0
SW		 8796
8797 /* legacy and mcs rates may not be both empty */
204e35a9 8798 return -EINVAL;
13ae75b1
JM		 8799 }
8800 }
8801
b9243ab0 8802out:
e35e4d28 8803 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8804}
8805
2e161f78 8806static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8807{
4c476991 8808 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8809 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8810 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8811
8812 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8813 return -EINVAL;
8814
2e161f78
JB		 8815 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8816 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8817
71bbc994
JB		 8818 switch (wdev->iftype) {
8819 case NL80211_IFTYPE_STATION:
8820 case NL80211_IFTYPE_ADHOC:
8821 case NL80211_IFTYPE_P2P_CLIENT:
8822 case NL80211_IFTYPE_AP:
8823 case NL80211_IFTYPE_AP_VLAN:
8824 case NL80211_IFTYPE_MESH_POINT:
8825 case NL80211_IFTYPE_P2P_GO:
98104fde 8826 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8827 break;
8828 default:
4c476991 8829 return -EOPNOTSUPP;
71bbc994 8830 }
026331c4
JM		 8831
8832 /* not much point in registering if we can't reply */
4c476991
JB		 8833 if (!rdev->ops->mgmt_tx)
8834 return -EOPNOTSUPP;
026331c4 8835
15e47304 8836 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8837 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8838 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8839}
8840
2e161f78 8841static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8842{
4c476991 8843 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8844 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8845 struct cfg80211_chan_def chandef;
026331c4 8846 int err;
d64d373f 8847 void *hdr = NULL;
026331c4 8848 u64 cookie;
e247bd90 8849 struct sk_buff *msg = NULL;
b176e629
AO		 8850 struct cfg80211_mgmt_tx_params params = {
8851 .dont_wait_for_ack =
8852 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8853 };
026331c4 8854
683b6d3b 8855 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8856 return -EINVAL;
8857
4c476991
JB		 8858 if (!rdev->ops->mgmt_tx)
8859 return -EOPNOTSUPP;
026331c4 8860
71bbc994 8861 switch (wdev->iftype) {
ea141b75
AQ		 8862 case NL80211_IFTYPE_P2P_DEVICE:
8863 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8864 return -EINVAL;
71bbc994
JB		 8865 case NL80211_IFTYPE_STATION:
8866 case NL80211_IFTYPE_ADHOC:
8867 case NL80211_IFTYPE_P2P_CLIENT:
8868 case NL80211_IFTYPE_AP:
8869 case NL80211_IFTYPE_AP_VLAN:
8870 case NL80211_IFTYPE_MESH_POINT:
8871 case NL80211_IFTYPE_P2P_GO:
8872 break;
8873 default:
4c476991 8874 return -EOPNOTSUPP;
71bbc994 8875 }
026331c4 8876
f7ca38df 8877 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8878 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8879 return -EINVAL;
b176e629 8880 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8881
8882 /*
8883 * We should wait on the channel for at least a minimum amount
8884 * of time (10ms) but no longer than the driver supports.
8885 */
b176e629
AO		 8886 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8887 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc 8888 return -EINVAL;
f7ca38df
JB		 8889 }
8890
b176e629 8891 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8892
b176e629 8893 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8894 return -EINVAL;
8895
b176e629 8896 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8897
ea141b75
AQ		 8898 /* get the channel if any has been specified, otherwise pass NULL to
8899 * the driver. The latter will use the current one
8900 */
8901 chandef.chan = NULL;
8902 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8903 err = nl80211_parse_chandef(rdev, info, &chandef);
8904 if (err)
8905 return err;
8906 }
8907
b176e629 8908 if (!chandef.chan && params.offchan)
ea141b75 8909 return -EINVAL;
026331c4 8910
34d22ce2
AO		 8911 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8912 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8913
8914 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8915 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8916 int i;
8917
8918 if (len % sizeof(u16))
8919 return -EINVAL;
8920
8921 params.n_csa_offsets = len / sizeof(u16);
8922 params.csa_offsets =
8923 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8924
8925 /* check that all the offsets fit the frame */
8926 for (i = 0; i < params.n_csa_offsets; i++) {
8927 if (params.csa_offsets[i] >= params.len)
8928 return -EINVAL;
8929 }
8930 }
8931
b176e629 8932 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8933 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8934 if (!msg)
8935 return -ENOMEM;
026331c4 8936
15e47304 8937 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8938 NL80211_CMD_FRAME);
cb35fba3
DC		 8939 if (!hdr) {
8940 err = -ENOBUFS;
e247bd90
JB		 8941 goto free_msg;
8942 }
026331c4 8943 }
e247bd90 8944
b176e629
AO		 8945 params.chan = chandef.chan;
8946 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8947 if (err)
8948 goto free_msg;
8949
e247bd90 8950 if (msg) {
2dad624e
ND		 8951 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
8952 NL80211_ATTR_PAD))
9360ffd1 8953 goto nla_put_failure;
026331c4 8954
e247bd90
JB		 8955 genlmsg_end(msg, hdr);
8956 return genlmsg_reply(msg, info);
8957 }
8958
8959 return 0;
026331c4
JM		 8960
8961 nla_put_failure:
8962 err = -ENOBUFS;
8963 free_msg:
8964 nlmsg_free(msg);
026331c4
JM		 8965 return err;
8966}
8967
f7ca38df
JB		 8968static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8969{
8970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8971 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8972 u64 cookie;
8973
8974 if (!info->attrs[NL80211_ATTR_COOKIE])
8975 return -EINVAL;
8976
8977 if (!rdev->ops->mgmt_tx_cancel_wait)
8978 return -EOPNOTSUPP;
8979
71bbc994
JB		 8980 switch (wdev->iftype) {
8981 case NL80211_IFTYPE_STATION:
8982 case NL80211_IFTYPE_ADHOC:
8983 case NL80211_IFTYPE_P2P_CLIENT:
8984 case NL80211_IFTYPE_AP:
8985 case NL80211_IFTYPE_AP_VLAN:
8986 case NL80211_IFTYPE_P2P_GO:
98104fde 8987 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8988 break;
8989 default:
f7ca38df 8990 return -EOPNOTSUPP;
71bbc994 8991 }
f7ca38df
JB		 8992
8993 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8994
e35e4d28 8995 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8996}
8997
ffb9eb3d
KV		 8998static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8999{
4c476991 9000 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 9001 struct wireless_dev *wdev;
4c476991 9002 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9003 u8 ps_state;
9004 bool state;
9005 int err;
9006
4c476991
JB		 9007 if (!info->attrs[NL80211_ATTR_PS_STATE])
9008 return -EINVAL;
ffb9eb3d
KV		 9009
9010 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9011
4c476991
JB		 9012 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9013 return -EINVAL;
ffb9eb3d
KV		 9014
9015 wdev = dev->ieee80211_ptr;
9016
4c476991
JB		 9017 if (!rdev->ops->set_power_mgmt)
9018 return -EOPNOTSUPP;
ffb9eb3d
KV		 9019
9020 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9021
9022 if (state == wdev->ps)
4c476991 9023 return 0;
ffb9eb3d 9024
e35e4d28 9025 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 9026 if (!err)
9027 wdev->ps = state;
ffb9eb3d
KV		 9028 return err;
9029}
9030
9031static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9032{
4c476991 9033 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 9034 enum nl80211_ps_state ps_state;
9035 struct wireless_dev *wdev;
4c476991 9036 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9037 struct sk_buff *msg;
9038 void *hdr;
9039 int err;
9040
ffb9eb3d
KV		 9041 wdev = dev->ieee80211_ptr;
9042
4c476991
JB		 9043 if (!rdev->ops->set_power_mgmt)
9044 return -EOPNOTSUPP;
ffb9eb3d
KV		 9045
9046 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9047 if (!msg)
9048 return -ENOMEM;
ffb9eb3d 9049
15e47304 9050 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 9051 NL80211_CMD_GET_POWER_SAVE);
9052 if (!hdr) {
4c476991 9053 err = -ENOBUFS;
ffb9eb3d
KV		 9054 goto free_msg;
9055 }
9056
9057 if (wdev->ps)
9058 ps_state = NL80211_PS_ENABLED;
9059 else
9060 ps_state = NL80211_PS_DISABLED;
9061
9360ffd1
DM		 9062 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9063 goto nla_put_failure;
ffb9eb3d
KV		 9064
9065 genlmsg_end(msg, hdr);
4c476991 9066 return genlmsg_reply(msg, info);
ffb9eb3d 9067
4c476991 9068 nla_put_failure:
ffb9eb3d 9069 err = -ENOBUFS;
4c476991 9070 free_msg:
ffb9eb3d 9071 nlmsg_free(msg);
ffb9eb3d
KV		 9072 return err;
9073}
9074
94e860f1
JB		 9075static const struct nla_policy
9076nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 9077 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
9078 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9079 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 9080 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9081 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9082 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 9083};
9084
84f10708 9085static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 9086 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 9087{
9088 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 9089 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9090 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 9091
d9d8b019 9092 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 9093 return -EINVAL;
9094
84f10708
TP		 9095 if (!rdev->ops->set_cqm_txe_config)
9096 return -EOPNOTSUPP;
9097
9098 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9099 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9100 return -EOPNOTSUPP;
9101
e35e4d28 9102 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 9103}
9104
d6dc1a38
JO		 9105static int nl80211_set_cqm_rssi(struct genl_info *info,
9106 s32 threshold, u32 hysteresis)
9107{
4c476991 9108 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9109 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9110 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 9111
9112 if (threshold > 0)
9113 return -EINVAL;
9114
1da5fcc8
JB		 9115 /* disabling - hysteresis should also be zero then */
9116 if (threshold == 0)
9117 hysteresis = 0;
d6dc1a38 9118
4c476991
JB		 9119 if (!rdev->ops->set_cqm_rssi_config)
9120 return -EOPNOTSUPP;
d6dc1a38 9121
074ac8df 9122 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9123 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9124 return -EOPNOTSUPP;
d6dc1a38 9125
e35e4d28 9126 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 9127}
9128
9129static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9130{
9131 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9132 struct nlattr *cqm;
9133 int err;
9134
9135 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 9136 if (!cqm)
9137 return -EINVAL;
d6dc1a38
JO		 9138
9139 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
9140 nl80211_attr_cqm_policy);
9141 if (err)
1da5fcc8 9142 return err;
d6dc1a38
JO		 9143
9144 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9145 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 9146 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9147 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 9148
1da5fcc8
JB		 9149 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
9150 }
9151
9152 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9153 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9154 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9155 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9156 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9157 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9158
9159 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9160 }
9161
9162 return -EINVAL;
d6dc1a38
JO		 9163}
9164
6e0bd6c3
RL		 9165static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9166{
9167 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9168 struct net_device *dev = info->user_ptr[1];
9169 struct ocb_setup setup = {};
9170 int err;
9171
9172 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9173 if (err)
9174 return err;
9175
9176 return cfg80211_join_ocb(rdev, dev, &setup);
9177}
9178
9179static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9180{
9181 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9182 struct net_device *dev = info->user_ptr[1];
9183
9184 return cfg80211_leave_ocb(rdev, dev);
9185}
9186
29cbe68c
JB		 9187static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9188{
9189 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9190 struct net_device *dev = info->user_ptr[1];
9191 struct mesh_config cfg;
c80d545d 9192 struct mesh_setup setup;
29cbe68c
JB		 9193 int err;
9194
9195 /* start with default */
9196 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9197 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9198
24bdd9f4 9199 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9200 /* and parse parameters if given */
24bdd9f4 9201 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9202 if (err)
9203 return err;
9204 }
9205
9206 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9207 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9208 return -EINVAL;
9209
c80d545d
JC		 9210 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9211 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9212
4bb62344
CYY		 9213 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9214 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9215 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9216 return -EINVAL;
9217
9bdbf04d
MP		 9218 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9219 setup.beacon_interval =
9220 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
9221 if (setup.beacon_interval < 10 ||
9222 setup.beacon_interval > 10000)
9223 return -EINVAL;
9224 }
9225
9226 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9227 setup.dtim_period =
9228 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9229 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9230 return -EINVAL;
9231 }
9232
c80d545d
JC		 9233 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9234 /* parse additional setup parameters if given */
9235 err = nl80211_parse_mesh_setup(info, &setup);
9236 if (err)
9237 return err;
9238 }
9239
d37bb18a
TP		 9240 if (setup.user_mpm)
9241 cfg.auto_open_plinks = false;
9242
cc1d2806 9243 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 9244 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9245 if (err)
9246 return err;
cc1d2806
JB		 9247 } else {
9248 /* cfg80211_join_mesh() will sort it out */
683b6d3b 9249 setup.chandef.chan = NULL;
cc1d2806
JB		 9250 }
9251
ffb3cf30
AN		 9252 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9253 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9254 int n_rates =
9255 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9256 struct ieee80211_supported_band *sband;
9257
9258 if (!setup.chandef.chan)
9259 return -EINVAL;
9260
9261 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9262
9263 err = ieee80211_get_ratemask(sband, rates, n_rates,
9264 &setup.basic_rates);
9265 if (err)
9266 return err;
9267 }
9268
c80d545d 9269 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 9270}
9271
9272static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9273{
9274 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9275 struct net_device *dev = info->user_ptr[1];
9276
9277 return cfg80211_leave_mesh(rdev, dev);
9278}
9279
dfb89c56 9280#ifdef CONFIG_PM
bb92d199
AK		 9281static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9282 struct cfg80211_registered_device *rdev)
9283{
6abb9cb9 9284 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 9285 struct nlattr *nl_pats, *nl_pat;
9286 int i, pat_len;
9287
6abb9cb9 9288 if (!wowlan->n_patterns)
bb92d199
AK		 9289 return 0;
9290
9291 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9292 if (!nl_pats)
9293 return -ENOBUFS;
9294
6abb9cb9 9295 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 9296 nl_pat = nla_nest_start(msg, i + 1);
9297 if (!nl_pat)
9298 return -ENOBUFS;
6abb9cb9 9299 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 9300 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 9301 wowlan->patterns[i].mask) ||
50ac6607
AK		 9302 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9303 wowlan->patterns[i].pattern) ||
9304 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 9305 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 9306 return -ENOBUFS;
9307 nla_nest_end(msg, nl_pat);
9308 }
9309 nla_nest_end(msg, nl_pats);
9310
9311 return 0;
9312}
9313
2a0e047e
JB		 9314static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9315 struct cfg80211_wowlan_tcp *tcp)
9316{
9317 struct nlattr *nl_tcp;
9318
9319 if (!tcp)
9320 return 0;
9321
9322 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9323 if (!nl_tcp)
9324 return -ENOBUFS;
9325
930345ea
JB		 9326 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9327 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 9328 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9329 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9330 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9331 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9332 tcp->payload_len, tcp->payload) ||
9333 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9334 tcp->data_interval) ||
9335 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9336 tcp->wake_len, tcp->wake_data) ||
9337 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9338 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9339 return -ENOBUFS;
9340
9341 if (tcp->payload_seq.len &&
9342 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9343 sizeof(tcp->payload_seq), &tcp->payload_seq))
9344 return -ENOBUFS;
9345
9346 if (tcp->payload_tok.len &&
9347 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9348 sizeof(tcp->payload_tok) + tcp->tokens_size,
9349 &tcp->payload_tok))
9350 return -ENOBUFS;
9351
e248ad30
JB		 9352 nla_nest_end(msg, nl_tcp);
9353
2a0e047e
JB		 9354 return 0;
9355}
9356
75453ccb
LC		 9357static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9358 struct cfg80211_sched_scan_request *req)
9359{
3b06d277 9360 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 9361 int i;
9362
9363 if (!req)
9364 return 0;
9365
9366 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9367 if (!nd)
9368 return -ENOBUFS;
9369
3b06d277
AS		 9370 if (req->n_scan_plans == 1 &&
9371 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9372 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9373 return -ENOBUFS;
9374
21fea567
LC		 9375 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9376 return -ENOBUFS;
9377
75453ccb
LC		 9378 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9379 if (!freqs)
9380 return -ENOBUFS;
9381
9382 for (i = 0; i < req->n_channels; i++)
9383 nla_put_u32(msg, i, req->channels[i]->center_freq);
9384
9385 nla_nest_end(msg, freqs);
9386
9387 if (req->n_match_sets) {
9388 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9389 for (i = 0; i < req->n_match_sets; i++) {
9390 match = nla_nest_start(msg, i);
9391 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9392 req->match_sets[i].ssid.ssid_len,
9393 req->match_sets[i].ssid.ssid);
9394 nla_nest_end(msg, match);
9395 }
9396 nla_nest_end(msg, matches);
9397 }
9398
3b06d277
AS		 9399 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9400 if (!scan_plans)
9401 return -ENOBUFS;
9402
9403 for (i = 0; i < req->n_scan_plans; i++) {
9404 scan_plan = nla_nest_start(msg, i + 1);
9405 if (!scan_plan ||
9406 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9407 req->scan_plans[i].interval) ||
9408 (req->scan_plans[i].iterations &&
9409 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9410 req->scan_plans[i].iterations)))
9411 return -ENOBUFS;
9412 nla_nest_end(msg, scan_plan);
9413 }
9414 nla_nest_end(msg, scan_plans);
9415
75453ccb
LC		 9416 nla_nest_end(msg, nd);
9417
9418 return 0;
9419}
9420
ff1b6e69
JB		 9421static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9422{
9423 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9424 struct sk_buff *msg;
9425 void *hdr;
2a0e047e 9426 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 9427
964dc9e2 9428 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 9429 return -EOPNOTSUPP;
9430
6abb9cb9 9431 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 9432 /* adjust size to have room for all the data */
6abb9cb9
JB		 9433 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9434 rdev->wiphy.wowlan_config->tcp->payload_len +
9435 rdev->wiphy.wowlan_config->tcp->wake_len +
9436 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 9437 }
9438
9439 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 9440 if (!msg)
9441 return -ENOMEM;
9442
15e47304 9443 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 9444 NL80211_CMD_GET_WOWLAN);
9445 if (!hdr)
9446 goto nla_put_failure;
9447
6abb9cb9 9448 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 9449 struct nlattr *nl_wowlan;
9450
9451 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9452 if (!nl_wowlan)
9453 goto nla_put_failure;
9454
6abb9cb9 9455 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 9456 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 9457 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 9458 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 9459 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 9460 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 9461 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 9462 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 9463 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 9464 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 9465 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 9466 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 9467 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 9468 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9469 goto nla_put_failure;
2a0e047e 9470
bb92d199
AK		 9471 if (nl80211_send_wowlan_patterns(msg, rdev))
9472 goto nla_put_failure;
2a0e047e 9473
6abb9cb9
JB		 9474 if (nl80211_send_wowlan_tcp(msg,
9475 rdev->wiphy.wowlan_config->tcp))
2a0e047e 9476 goto nla_put_failure;
75453ccb
LC		 9477
9478 if (nl80211_send_wowlan_nd(
9479 msg,
9480 rdev->wiphy.wowlan_config->nd_config))
9481 goto nla_put_failure;
2a0e047e 9482
ff1b6e69
JB		 9483 nla_nest_end(msg, nl_wowlan);
9484 }
9485
9486 genlmsg_end(msg, hdr);
9487 return genlmsg_reply(msg, info);
9488
9489nla_put_failure:
9490 nlmsg_free(msg);
9491 return -ENOBUFS;
9492}
9493
2a0e047e
JB		 9494static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9495 struct nlattr *attr,
9496 struct cfg80211_wowlan *trig)
9497{
9498 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9499 struct cfg80211_wowlan_tcp *cfg;
9500 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9501 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9502 u32 size;
9503 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9504 int err, port;
9505
964dc9e2 9506 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 9507 return -EINVAL;
9508
9509 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9510 nla_data(attr), nla_len(attr),
9511 nl80211_wowlan_tcp_policy);
9512 if (err)
9513 return err;
9514
9515 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9516 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9517 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9518 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9519 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9520 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9521 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9522 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9523 return -EINVAL;
9524
9525 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 9526 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 9527 return -EINVAL;
9528
9529 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 9530 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 9531 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 9532 return -EINVAL;
9533
9534 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9535 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9536 return -EINVAL;
9537
9538 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9539 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9540 return -EINVAL;
9541
9542 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9543 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9544
9545 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9546 tokens_size = tokln - sizeof(*tok);
9547
9548 if (!tok->len || tokens_size % tok->len)
9549 return -EINVAL;
964dc9e2 9550 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9551 return -EINVAL;
964dc9e2 9552 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9553 return -EINVAL;
964dc9e2 9554 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9555 return -EINVAL;
964dc9e2 9556 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9557 return -EINVAL;
9558 if (tok->offset + tok->len > data_size)
9559 return -EINVAL;
9560 }
9561
9562 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9563 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9564 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9565 return -EINVAL;
9566 if (seq->len == 0 || seq->len > 4)
9567 return -EINVAL;
9568 if (seq->len + seq->offset > data_size)
9569 return -EINVAL;
9570 }
9571
9572 size = sizeof(*cfg);
9573 size += data_size;
9574 size += wake_size + wake_mask_size;
9575 size += tokens_size;
9576
9577 cfg = kzalloc(size, GFP_KERNEL);
9578 if (!cfg)
9579 return -ENOMEM;
67b61f6c
JB		 9580 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9581 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 9582 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9583 ETH_ALEN);
9584 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9585 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9586 else
9587 port = 0;
9588#ifdef CONFIG_INET
9589 /* allocate a socket and port for it and use it */
9590 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9591 IPPROTO_TCP, &cfg->sock, 1);
9592 if (err) {
9593 kfree(cfg);
9594 return err;
9595 }
9596 if (inet_csk_get_port(cfg->sock->sk, port)) {
9597 sock_release(cfg->sock);
9598 kfree(cfg);
9599 return -EADDRINUSE;
9600 }
9601 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9602#else
9603 if (!port) {
9604 kfree(cfg);
9605 return -EINVAL;
9606 }
9607 cfg->src_port = port;
9608#endif
9609
9610 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9611 cfg->payload_len = data_size;
9612 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9613 memcpy((void *)cfg->payload,
9614 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9615 data_size);
9616 if (seq)
9617 cfg->payload_seq = *seq;
9618 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9619 cfg->wake_len = wake_size;
9620 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9621 memcpy((void *)cfg->wake_data,
9622 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9623 wake_size);
9624 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9625 data_size + wake_size;
9626 memcpy((void *)cfg->wake_mask,
9627 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9628 wake_mask_size);
9629 if (tok) {
9630 cfg->tokens_size = tokens_size;
9631 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9632 }
9633
9634 trig->tcp = cfg;
9635
9636 return 0;
9637}
9638
8cd4d456
LC		 9639static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9640 const struct wiphy_wowlan_support *wowlan,
9641 struct nlattr *attr,
9642 struct cfg80211_wowlan *trig)
9643{
9644 struct nlattr **tb;
9645 int err;
9646
9647 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9648 if (!tb)
9649 return -ENOMEM;
9650
9651 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9652 err = -EOPNOTSUPP;
9653 goto out;
9654 }
9655
9656 err = nla_parse(tb, NL80211_ATTR_MAX,
9657 nla_data(attr), nla_len(attr),
9658 nl80211_policy);
9659 if (err)
9660 goto out;
9661
ad2b26ab 9662 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9663 err = PTR_ERR_OR_ZERO(trig->nd_config);
9664 if (err)
9665 trig->nd_config = NULL;
9666
9667out:
9668 kfree(tb);
9669 return err;
9670}
9671
ff1b6e69
JB		 9672static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9673{
9674 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9675 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9676 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9677 struct cfg80211_wowlan *ntrig;
964dc9e2 9678 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9679 int err, i;
6abb9cb9 9680 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 9681 bool regular = false;
ff1b6e69 9682
964dc9e2 9683 if (!wowlan)
ff1b6e69
JB		 9684 return -EOPNOTSUPP;
9685
ae33bd81
JB		 9686 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9687 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9688 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9689 goto set_wakeup;
9690 }
ff1b6e69
JB		 9691
9692 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9693 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9694 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9695 nl80211_wowlan_policy);
9696 if (err)
9697 return err;
9698
9699 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9700 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9701 return -EINVAL;
9702 new_triggers.any = true;
9703 }
9704
9705 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9706 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9707 return -EINVAL;
9708 new_triggers.disconnect = true;
98fc4386 9709 regular = true;
ff1b6e69
JB		 9710 }
9711
9712 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9713 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9714 return -EINVAL;
9715 new_triggers.magic_pkt = true;
98fc4386 9716 regular = true;
ff1b6e69
JB		 9717 }
9718
77dbbb13
JB		 9719 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9720 return -EINVAL;
9721
9722 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9723 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9724 return -EINVAL;
9725 new_triggers.gtk_rekey_failure = true;
98fc4386 9726 regular = true;
77dbbb13
JB		 9727 }
9728
9729 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9730 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9731 return -EINVAL;
9732 new_triggers.eap_identity_req = true;
98fc4386 9733 regular = true;
77dbbb13
JB		 9734 }
9735
9736 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9737 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9738 return -EINVAL;
9739 new_triggers.four_way_handshake = true;
98fc4386 9740 regular = true;
77dbbb13
JB		 9741 }
9742
9743 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9744 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9745 return -EINVAL;
9746 new_triggers.rfkill_release = true;
98fc4386 9747 regular = true;
77dbbb13
JB		 9748 }
9749
ff1b6e69
JB		 9750 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9751 struct nlattr *pat;
9752 int n_patterns = 0;
bb92d199 9753 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9754 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 9755
98fc4386
JB		 9756 regular = true;
9757
ff1b6e69
JB		 9758 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9759 rem)
9760 n_patterns++;
9761 if (n_patterns > wowlan->n_patterns)
9762 return -EINVAL;
9763
9764 new_triggers.patterns = kcalloc(n_patterns,
9765 sizeof(new_triggers.patterns[0]),
9766 GFP_KERNEL);
9767 if (!new_triggers.patterns)
9768 return -ENOMEM;
9769
9770 new_triggers.n_patterns = n_patterns;
9771 i = 0;
9772
9773 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9774 rem) {
922bd80f
JB		 9775 u8 *mask_pat;
9776
50ac6607
AK		 9777 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9778 nla_len(pat), NULL);
ff1b6e69 9779 err = -EINVAL;
50ac6607
AK		 9780 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9781 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9782 goto error;
50ac6607 9783 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9784 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9785 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9786 goto error;
9787 if (pat_len > wowlan->pattern_max_len ||
9788 pat_len < wowlan->pattern_min_len)
9789 goto error;
9790
50ac6607 9791 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9792 pkt_offset = 0;
9793 else
9794 pkt_offset = nla_get_u32(
50ac6607 9795 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9796 if (pkt_offset > wowlan->max_pkt_offset)
9797 goto error;
9798 new_triggers.patterns[i].pkt_offset = pkt_offset;
9799
922bd80f
JB		 9800 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9801 if (!mask_pat) {
ff1b6e69
JB		 9802 err = -ENOMEM;
9803 goto error;
9804 }
922bd80f
JB		 9805 new_triggers.patterns[i].mask = mask_pat;
9806 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9807 mask_len);
922bd80f
JB		 9808 mask_pat += mask_len;
9809 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9810 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9811 memcpy(mask_pat,
50ac6607 9812 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9813 pat_len);
9814 i++;
9815 }
9816 }
9817
2a0e047e 9818 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 9819 regular = true;
2a0e047e
JB		 9820 err = nl80211_parse_wowlan_tcp(
9821 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9822 &new_triggers);
9823 if (err)
9824 goto error;
9825 }
9826
8cd4d456 9827 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 9828 regular = true;
8cd4d456
LC		 9829 err = nl80211_parse_wowlan_nd(
9830 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9831 &new_triggers);
9832 if (err)
9833 goto error;
9834 }
9835
98fc4386
JB		 9836 /* The 'any' trigger means the device continues operating more or less
9837 * as in its normal operation mode and wakes up the host on most of the
9838 * normal interrupts (like packet RX, ...)
9839 * It therefore makes little sense to combine with the more constrained
9840 * wakeup trigger modes.
9841 */
9842 if (new_triggers.any && regular) {
9843 err = -EINVAL;
9844 goto error;
9845 }
9846
ae33bd81
JB		 9847 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9848 if (!ntrig) {
9849 err = -ENOMEM;
9850 goto error;
ff1b6e69 9851 }
ae33bd81 9852 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9853 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9854
ae33bd81 9855 set_wakeup:
6abb9cb9
JB		 9856 if (rdev->ops->set_wakeup &&
9857 prev_enabled != !!rdev->wiphy.wowlan_config)
9858 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9859
ff1b6e69
JB		 9860 return 0;
9861 error:
9862 for (i = 0; i < new_triggers.n_patterns; i++)
9863 kfree(new_triggers.patterns[i].mask);
9864 kfree(new_triggers.patterns);
2a0e047e
JB		 9865 if (new_triggers.tcp && new_triggers.tcp->sock)
9866 sock_release(new_triggers.tcp->sock);
9867 kfree(new_triggers.tcp);
e5dbe070 9868 kfree(new_triggers.nd_config);
ff1b6e69
JB		 9869 return err;
9870}
dfb89c56 9871#endif
ff1b6e69 9872
be29b99a
AK		 9873static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9874 struct cfg80211_registered_device *rdev)
9875{
9876 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9877 int i, j, pat_len;
9878 struct cfg80211_coalesce_rules *rule;
9879
9880 if (!rdev->coalesce->n_rules)
9881 return 0;
9882
9883 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9884 if (!nl_rules)
9885 return -ENOBUFS;
9886
9887 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9888 nl_rule = nla_nest_start(msg, i + 1);
9889 if (!nl_rule)
9890 return -ENOBUFS;
9891
9892 rule = &rdev->coalesce->rules[i];
9893 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9894 rule->delay))
9895 return -ENOBUFS;
9896
9897 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9898 rule->condition))
9899 return -ENOBUFS;
9900
9901 nl_pats = nla_nest_start(msg,
9902 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9903 if (!nl_pats)
9904 return -ENOBUFS;
9905
9906 for (j = 0; j < rule->n_patterns; j++) {
9907 nl_pat = nla_nest_start(msg, j + 1);
9908 if (!nl_pat)
9909 return -ENOBUFS;
9910 pat_len = rule->patterns[j].pattern_len;
9911 if (nla_put(msg, NL80211_PKTPAT_MASK,
9912 DIV_ROUND_UP(pat_len, 8),
9913 rule->patterns[j].mask) ||
9914 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9915 rule->patterns[j].pattern) ||
9916 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9917 rule->patterns[j].pkt_offset))
9918 return -ENOBUFS;
9919 nla_nest_end(msg, nl_pat);
9920 }
9921 nla_nest_end(msg, nl_pats);
9922 nla_nest_end(msg, nl_rule);
9923 }
9924 nla_nest_end(msg, nl_rules);
9925
9926 return 0;
9927}
9928
9929static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9930{
9931 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9932 struct sk_buff *msg;
9933 void *hdr;
9934
9935 if (!rdev->wiphy.coalesce)
9936 return -EOPNOTSUPP;
9937
9938 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9939 if (!msg)
9940 return -ENOMEM;
9941
9942 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9943 NL80211_CMD_GET_COALESCE);
9944 if (!hdr)
9945 goto nla_put_failure;
9946
9947 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9948 goto nla_put_failure;
9949
9950 genlmsg_end(msg, hdr);
9951 return genlmsg_reply(msg, info);
9952
9953nla_put_failure:
9954 nlmsg_free(msg);
9955 return -ENOBUFS;
9956}
9957
9958void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9959{
9960 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9961 int i, j;
9962 struct cfg80211_coalesce_rules *rule;
9963
9964 if (!coalesce)
9965 return;
9966
9967 for (i = 0; i < coalesce->n_rules; i++) {
9968 rule = &coalesce->rules[i];
9969 for (j = 0; j < rule->n_patterns; j++)
9970 kfree(rule->patterns[j].mask);
9971 kfree(rule->patterns);
9972 }
9973 kfree(coalesce->rules);
9974 kfree(coalesce);
9975 rdev->coalesce = NULL;
9976}
9977
9978static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9979 struct nlattr *rule,
9980 struct cfg80211_coalesce_rules *new_rule)
9981{
9982 int err, i;
9983 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9984 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9985 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9986 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9987
9988 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9989 nla_len(rule), nl80211_coalesce_policy);
9990 if (err)
9991 return err;
9992
9993 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9994 new_rule->delay =
9995 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9996 if (new_rule->delay > coalesce->max_delay)
9997 return -EINVAL;
9998
9999 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10000 new_rule->condition =
10001 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10002 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10003 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10004 return -EINVAL;
10005
10006 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10007 return -EINVAL;
10008
10009 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10010 rem)
10011 n_patterns++;
10012 if (n_patterns > coalesce->n_patterns)
10013 return -EINVAL;
10014
10015 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10016 GFP_KERNEL);
10017 if (!new_rule->patterns)
10018 return -ENOMEM;
10019
10020 new_rule->n_patterns = n_patterns;
10021 i = 0;
10022
10023 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10024 rem) {
922bd80f
JB		 10025 u8 *mask_pat;
10026
be29b99a
AK		 10027 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
10028 nla_len(pat), NULL);
10029 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10030 !pat_tb[NL80211_PKTPAT_PATTERN])
10031 return -EINVAL;
10032 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10033 mask_len = DIV_ROUND_UP(pat_len, 8);
10034 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10035 return -EINVAL;
10036 if (pat_len > coalesce->pattern_max_len ||
10037 pat_len < coalesce->pattern_min_len)
10038 return -EINVAL;
10039
10040 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10041 pkt_offset = 0;
10042 else
10043 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10044 if (pkt_offset > coalesce->max_pkt_offset)
10045 return -EINVAL;
10046 new_rule->patterns[i].pkt_offset = pkt_offset;
10047
922bd80f
JB		 10048 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10049 if (!mask_pat)
be29b99a 10050 return -ENOMEM;
922bd80f
JB		 10051
10052 new_rule->patterns[i].mask = mask_pat;
10053 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10054 mask_len);
10055
10056 mask_pat += mask_len;
10057 new_rule->patterns[i].pattern = mask_pat;
be29b99a 10058 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 10059 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10060 pat_len);
be29b99a
AK		 10061 i++;
10062 }
10063
10064 return 0;
10065}
10066
10067static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10068{
10069 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10070 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10071 struct cfg80211_coalesce new_coalesce = {};
10072 struct cfg80211_coalesce *n_coalesce;
10073 int err, rem_rule, n_rules = 0, i, j;
10074 struct nlattr *rule;
10075 struct cfg80211_coalesce_rules *tmp_rule;
10076
10077 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10078 return -EOPNOTSUPP;
10079
10080 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10081 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 10082 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 10083 return 0;
10084 }
10085
10086 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10087 rem_rule)
10088 n_rules++;
10089 if (n_rules > coalesce->n_rules)
10090 return -EINVAL;
10091
10092 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10093 GFP_KERNEL);
10094 if (!new_coalesce.rules)
10095 return -ENOMEM;
10096
10097 new_coalesce.n_rules = n_rules;
10098 i = 0;
10099
10100 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10101 rem_rule) {
10102 err = nl80211_parse_coalesce_rule(rdev, rule,
10103 &new_coalesce.rules[i]);
10104 if (err)
10105 goto error;
10106
10107 i++;
10108 }
10109
a1056b1b 10110 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 10111 if (err)
10112 goto error;
10113
10114 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10115 if (!n_coalesce) {
10116 err = -ENOMEM;
10117 goto error;
10118 }
10119 cfg80211_rdev_free_coalesce(rdev);
10120 rdev->coalesce = n_coalesce;
10121
10122 return 0;
10123error:
10124 for (i = 0; i < new_coalesce.n_rules; i++) {
10125 tmp_rule = &new_coalesce.rules[i];
10126 for (j = 0; j < tmp_rule->n_patterns; j++)
10127 kfree(tmp_rule->patterns[j].mask);
10128 kfree(tmp_rule->patterns);
10129 }
10130 kfree(new_coalesce.rules);
10131
10132 return err;
10133}
10134
e5497d76
JB		 10135static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10136{
10137 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10138 struct net_device *dev = info->user_ptr[1];
10139 struct wireless_dev *wdev = dev->ieee80211_ptr;
10140 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10141 struct cfg80211_gtk_rekey_data rekey_data;
10142 int err;
10143
10144 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10145 return -EINVAL;
10146
10147 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
10148 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
10149 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
10150 nl80211_rekey_policy);
10151 if (err)
10152 return err;
10153
10154 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10155 return -ERANGE;
10156 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10157 return -ERANGE;
10158 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10159 return -ERANGE;
10160
78f686ca
JB		 10161 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10162 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10163 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 10164
10165 wdev_lock(wdev);
10166 if (!wdev->current_bss) {
10167 err = -ENOTCONN;
10168 goto out;
10169 }
10170
10171 if (!rdev->ops->set_rekey_data) {
10172 err = -EOPNOTSUPP;
10173 goto out;
10174 }
10175
e35e4d28 10176 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 10177 out:
10178 wdev_unlock(wdev);
10179 return err;
10180}
10181
28946da7
JB		 10182static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10183 struct genl_info *info)
10184{
10185 struct net_device *dev = info->user_ptr[1];
10186 struct wireless_dev *wdev = dev->ieee80211_ptr;
10187
10188 if (wdev->iftype != NL80211_IFTYPE_AP &&
10189 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10190 return -EINVAL;
10191
15e47304 10192 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 10193 return -EBUSY;
10194
15e47304 10195 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 10196 return 0;
10197}
10198
7f6cf311
JB		 10199static int nl80211_probe_client(struct sk_buff *skb,
10200 struct genl_info *info)
10201{
10202 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10203 struct net_device *dev = info->user_ptr[1];
10204 struct wireless_dev *wdev = dev->ieee80211_ptr;
10205 struct sk_buff *msg;
10206 void *hdr;
10207 const u8 *addr;
10208 u64 cookie;
10209 int err;
10210
10211 if (wdev->iftype != NL80211_IFTYPE_AP &&
10212 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10213 return -EOPNOTSUPP;
10214
10215 if (!info->attrs[NL80211_ATTR_MAC])
10216 return -EINVAL;
10217
10218 if (!rdev->ops->probe_client)
10219 return -EOPNOTSUPP;
10220
10221 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10222 if (!msg)
10223 return -ENOMEM;
10224
15e47304 10225 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 10226 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 10227 if (!hdr) {
10228 err = -ENOBUFS;
7f6cf311
JB		 10229 goto free_msg;
10230 }
10231
10232 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10233
e35e4d28 10234 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 10235 if (err)
10236 goto free_msg;
10237
2dad624e
ND		 10238 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10239 NL80211_ATTR_PAD))
9360ffd1 10240 goto nla_put_failure;
7f6cf311
JB		 10241
10242 genlmsg_end(msg, hdr);
10243
10244 return genlmsg_reply(msg, info);
10245
10246 nla_put_failure:
10247 err = -ENOBUFS;
10248 free_msg:
10249 nlmsg_free(msg);
10250 return err;
10251}
10252
5e760230
JB		 10253static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10254{
10255 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 10256 struct cfg80211_beacon_registration *reg, *nreg;
10257 int rv;
5e760230
JB		 10258
10259 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10260 return -EOPNOTSUPP;
10261
37c73b5f
BG		 10262 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10263 if (!nreg)
10264 return -ENOMEM;
10265
10266 /* First, check if already registered. */
10267 spin_lock_bh(&rdev->beacon_registrations_lock);
10268 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10269 if (reg->nlportid == info->snd_portid) {
10270 rv = -EALREADY;
10271 goto out_err;
10272 }
10273 }
10274 /* Add it to the list */
10275 nreg->nlportid = info->snd_portid;
10276 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 10277
37c73b5f 10278 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10279
10280 return 0;
37c73b5f
BG		 10281out_err:
10282 spin_unlock_bh(&rdev->beacon_registrations_lock);
10283 kfree(nreg);
10284 return rv;
5e760230
JB		 10285}
10286
98104fde
JB		 10287static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10288{
10289 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10290 struct wireless_dev *wdev = info->user_ptr[1];
10291 int err;
10292
10293 if (!rdev->ops->start_p2p_device)
10294 return -EOPNOTSUPP;
10295
10296 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10297 return -EOPNOTSUPP;
10298
10299 if (wdev->p2p_started)
10300 return 0;
10301
b6a55015
LC		 10302 if (rfkill_blocked(rdev->rfkill))
10303 return -ERFKILL;
98104fde 10304
eeb126e9 10305 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 10306 if (err)
10307 return err;
10308
10309 wdev->p2p_started = true;
98104fde 10310 rdev->opencount++;
98104fde
JB		 10311
10312 return 0;
10313}
10314
10315static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10316{
10317 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10318 struct wireless_dev *wdev = info->user_ptr[1];
10319
10320 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10321 return -EOPNOTSUPP;
10322
10323 if (!rdev->ops->stop_p2p_device)
10324 return -EOPNOTSUPP;
10325
f9f47529 10326 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 10327
10328 return 0;
10329}
10330
3713b4e3
JB		 10331static int nl80211_get_protocol_features(struct sk_buff *skb,
10332 struct genl_info *info)
10333{
10334 void *hdr;
10335 struct sk_buff *msg;
10336
10337 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10338 if (!msg)
10339 return -ENOMEM;
10340
10341 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10342 NL80211_CMD_GET_PROTOCOL_FEATURES);
10343 if (!hdr)
10344 goto nla_put_failure;
10345
10346 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
10347 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
10348 goto nla_put_failure;
10349
10350 genlmsg_end(msg, hdr);
10351 return genlmsg_reply(msg, info);
10352
10353 nla_put_failure:
10354 kfree_skb(msg);
10355 return -ENOBUFS;
10356}
10357
355199e0
JM		 10358static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
10359{
10360 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10361 struct cfg80211_update_ft_ies_params ft_params;
10362 struct net_device *dev = info->user_ptr[1];
10363
10364 if (!rdev->ops->update_ft_ies)
10365 return -EOPNOTSUPP;
10366
10367 if (!info->attrs[NL80211_ATTR_MDID] ||
10368 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
10369 return -EINVAL;
10370
10371 memset(&ft_params, 0, sizeof(ft_params));
10372 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10373 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10374 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10375
10376 return rdev_update_ft_ies(rdev, dev, &ft_params);
10377}
10378
5de17984
AS		 10379static int nl80211_crit_protocol_start(struct sk_buff *skb,
10380 struct genl_info *info)
10381{
10382 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10383 struct wireless_dev *wdev = info->user_ptr[1];
10384 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10385 u16 duration;
10386 int ret;
10387
10388 if (!rdev->ops->crit_proto_start)
10389 return -EOPNOTSUPP;
10390
10391 if (WARN_ON(!rdev->ops->crit_proto_stop))
10392 return -EINVAL;
10393
10394 if (rdev->crit_proto_nlportid)
10395 return -EBUSY;
10396
10397 /* determine protocol if provided */
10398 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10399 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10400
10401 if (proto >= NUM_NL80211_CRIT_PROTO)
10402 return -EINVAL;
10403
10404 /* timeout must be provided */
10405 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10406 return -EINVAL;
10407
10408 duration =
10409 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10410
10411 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10412 return -ERANGE;
10413
10414 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10415 if (!ret)
10416 rdev->crit_proto_nlportid = info->snd_portid;
10417
10418 return ret;
10419}
10420
10421static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10422 struct genl_info *info)
10423{
10424 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10425 struct wireless_dev *wdev = info->user_ptr[1];
10426
10427 if (!rdev->ops->crit_proto_stop)
10428 return -EOPNOTSUPP;
10429
10430 if (rdev->crit_proto_nlportid) {
10431 rdev->crit_proto_nlportid = 0;
10432 rdev_crit_proto_stop(rdev, wdev);
10433 }
10434 return 0;
10435}
10436
ad7e718c
JB		 10437static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10438{
10439 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10440 struct wireless_dev *wdev =
10441 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10442 int i, err;
10443 u32 vid, subcmd;
10444
10445 if (!rdev->wiphy.vendor_commands)
10446 return -EOPNOTSUPP;
10447
10448 if (IS_ERR(wdev)) {
10449 err = PTR_ERR(wdev);
10450 if (err != -EINVAL)
10451 return err;
10452 wdev = NULL;
10453 } else if (wdev->wiphy != &rdev->wiphy) {
10454 return -EINVAL;
10455 }
10456
10457 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10458 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10459 return -EINVAL;
10460
10461 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10462 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10463 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10464 const struct wiphy_vendor_command *vcmd;
10465 void *data = NULL;
10466 int len = 0;
10467
10468 vcmd = &rdev->wiphy.vendor_commands[i];
10469
10470 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10471 continue;
10472
10473 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10474 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10475 if (!wdev)
10476 return -EINVAL;
10477 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10478 !wdev->netdev)
10479 return -EINVAL;
10480
10481 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10482 if (wdev->netdev &&
10483 !netif_running(wdev->netdev))
10484 return -ENETDOWN;
10485 if (!wdev->netdev && !wdev->p2p_started)
10486 return -ENETDOWN;
10487 }
7bdbe400
JB		 10488
10489 if (!vcmd->doit)
10490 return -EOPNOTSUPP;
ad7e718c
JB		 10491 } else {
10492 wdev = NULL;
10493 }
10494
10495 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10496 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10497 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10498 }
10499
10500 rdev->cur_cmd_info = info;
10501 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10502 data, len);
10503 rdev->cur_cmd_info = NULL;
10504 return err;
10505 }
10506
10507 return -EOPNOTSUPP;
10508}
10509
7bdbe400
JB		 10510static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10511 struct netlink_callback *cb,
10512 struct cfg80211_registered_device **rdev,
10513 struct wireless_dev **wdev)
10514{
10515 u32 vid, subcmd;
10516 unsigned int i;
10517 int vcmd_idx = -1;
10518 int err;
10519 void *data = NULL;
10520 unsigned int data_len = 0;
10521
10522 rtnl_lock();
10523
10524 if (cb->args[0]) {
10525 /* subtract the 1 again here */
10526 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10527 struct wireless_dev *tmp;
10528
10529 if (!wiphy) {
10530 err = -ENODEV;
10531 goto out_unlock;
10532 }
10533 *rdev = wiphy_to_rdev(wiphy);
10534 *wdev = NULL;
10535
10536 if (cb->args[1]) {
53873f13 10537 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
7bdbe400
JB		 10538 if (tmp->identifier == cb->args[1] - 1) {
10539 *wdev = tmp;
10540 break;
10541 }
10542 }
10543 }
10544
10545 /* keep rtnl locked in successful case */
10546 return 0;
10547 }
10548
10549 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10550 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10551 nl80211_policy);
10552 if (err)
10553 goto out_unlock;
10554
10555 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10556 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10557 err = -EINVAL;
10558 goto out_unlock;
10559 }
10560
10561 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10562 nl80211_fam.attrbuf);
10563 if (IS_ERR(*wdev))
10564 *wdev = NULL;
10565
10566 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10567 nl80211_fam.attrbuf);
10568 if (IS_ERR(*rdev)) {
10569 err = PTR_ERR(*rdev);
10570 goto out_unlock;
10571 }
10572
10573 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10574 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10575
10576 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10577 const struct wiphy_vendor_command *vcmd;
10578
10579 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10580
10581 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10582 continue;
10583
10584 if (!vcmd->dumpit) {
10585 err = -EOPNOTSUPP;
10586 goto out_unlock;
10587 }
10588
10589 vcmd_idx = i;
10590 break;
10591 }
10592
10593 if (vcmd_idx < 0) {
10594 err = -EOPNOTSUPP;
10595 goto out_unlock;
10596 }
10597
10598 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10599 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10600 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10601 }
10602
10603 /* 0 is the first index - add 1 to parse only once */
10604 cb->args[0] = (*rdev)->wiphy_idx + 1;
10605 /* add 1 to know if it was NULL */
10606 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10607 cb->args[2] = vcmd_idx;
10608 cb->args[3] = (unsigned long)data;
10609 cb->args[4] = data_len;
10610
10611 /* keep rtnl locked in successful case */
10612 return 0;
10613 out_unlock:
10614 rtnl_unlock();
10615 return err;
10616}
10617
10618static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10619 struct netlink_callback *cb)
10620{
10621 struct cfg80211_registered_device *rdev;
10622 struct wireless_dev *wdev;
10623 unsigned int vcmd_idx;
10624 const struct wiphy_vendor_command *vcmd;
10625 void *data;
10626 int data_len;
10627 int err;
10628 struct nlattr *vendor_data;
10629
10630 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10631 if (err)
10632 return err;
10633
10634 vcmd_idx = cb->args[2];
10635 data = (void *)cb->args[3];
10636 data_len = cb->args[4];
10637 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10638
10639 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10640 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10641 if (!wdev)
10642 return -EINVAL;
10643 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10644 !wdev->netdev)
10645 return -EINVAL;
10646
10647 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10648 if (wdev->netdev &&
10649 !netif_running(wdev->netdev))
10650 return -ENETDOWN;
10651 if (!wdev->netdev && !wdev->p2p_started)
10652 return -ENETDOWN;
10653 }
10654 }
10655
10656 while (1) {
10657 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10658 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10659 NL80211_CMD_VENDOR);
10660 if (!hdr)
10661 break;
10662
10663 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 10664 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
10665 wdev_id(wdev),
10666 NL80211_ATTR_PAD))) {
7bdbe400
JB		 10667 genlmsg_cancel(skb, hdr);
10668 break;
10669 }
10670
10671 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10672 if (!vendor_data) {
10673 genlmsg_cancel(skb, hdr);
10674 break;
10675 }
10676
10677 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10678 (unsigned long *)&cb->args[5]);
10679 nla_nest_end(skb, vendor_data);
10680
10681 if (err == -ENOBUFS || err == -ENOENT) {
10682 genlmsg_cancel(skb, hdr);
10683 break;
10684 } else if (err) {
10685 genlmsg_cancel(skb, hdr);
10686 goto out;
10687 }
10688
10689 genlmsg_end(skb, hdr);
10690 }
10691
10692 err = skb->len;
10693 out:
10694 rtnl_unlock();
10695 return err;
10696}
10697
ad7e718c
JB		 10698struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10699 enum nl80211_commands cmd,
10700 enum nl80211_attrs attr,
10701 int approxlen)
10702{
f26cbf40 10703 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 10704
10705 if (WARN_ON(!rdev->cur_cmd_info))
10706 return NULL;
10707
6c09e791 10708 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 10709 rdev->cur_cmd_info->snd_portid,
10710 rdev->cur_cmd_info->snd_seq,
567ffc35 10711 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 10712}
10713EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10714
10715int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10716{
10717 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10718 void *hdr = ((void **)skb->cb)[1];
10719 struct nlattr *data = ((void **)skb->cb)[2];
10720
bd8c78e7
JB		 10721 /* clear CB data for netlink core to own from now on */
10722 memset(skb->cb, 0, sizeof(skb->cb));
10723
ad7e718c
JB		 10724 if (WARN_ON(!rdev->cur_cmd_info)) {
10725 kfree_skb(skb);
10726 return -EINVAL;
10727 }
10728
10729 nla_nest_end(skb, data);
10730 genlmsg_end(skb, hdr);
10731 return genlmsg_reply(skb, rdev->cur_cmd_info);
10732}
10733EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10734
fa9ffc74
KP		 10735static int nl80211_set_qos_map(struct sk_buff *skb,
10736 struct genl_info *info)
10737{
10738 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10739 struct cfg80211_qos_map *qos_map = NULL;
10740 struct net_device *dev = info->user_ptr[1];
10741 u8 *pos, len, num_des, des_len, des;
10742 int ret;
10743
10744 if (!rdev->ops->set_qos_map)
10745 return -EOPNOTSUPP;
10746
10747 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10748 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10749 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10750
10751 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10752 len > IEEE80211_QOS_MAP_LEN_MAX)
10753 return -EINVAL;
10754
10755 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10756 if (!qos_map)
10757 return -ENOMEM;
10758
10759 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10760 if (num_des) {
10761 des_len = num_des *
10762 sizeof(struct cfg80211_dscp_exception);
10763 memcpy(qos_map->dscp_exception, pos, des_len);
10764 qos_map->num_des = num_des;
10765 for (des = 0; des < num_des; des++) {
10766 if (qos_map->dscp_exception[des].up > 7) {
10767 kfree(qos_map);
10768 return -EINVAL;
10769 }
10770 }
10771 pos += des_len;
10772 }
10773 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10774 }
10775
10776 wdev_lock(dev->ieee80211_ptr);
10777 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10778 if (!ret)
10779 ret = rdev_set_qos_map(rdev, dev, qos_map);
10780 wdev_unlock(dev->ieee80211_ptr);
10781
10782 kfree(qos_map);
10783 return ret;
10784}
10785
960d01ac
JB		 10786static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10787{
10788 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10789 struct net_device *dev = info->user_ptr[1];
10790 struct wireless_dev *wdev = dev->ieee80211_ptr;
10791 const u8 *peer;
10792 u8 tsid, up;
10793 u16 admitted_time = 0;
10794 int err;
10795
723e73ac 10796 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 10797 return -EOPNOTSUPP;
10798
10799 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10800 !info->attrs[NL80211_ATTR_USER_PRIO])
10801 return -EINVAL;
10802
10803 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10804 if (tsid >= IEEE80211_NUM_TIDS)
10805 return -EINVAL;
10806
10807 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10808 if (up >= IEEE80211_NUM_UPS)
10809 return -EINVAL;
10810
10811 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 10812 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 10813 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 10814 * need more attributes for that (e.g. BA session requirement);
10815 * change the WMM adminssion test above to allow both then
960d01ac
JB		 10816 */
10817 return -EINVAL;
10818 }
10819
10820 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10821
10822 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10823 admitted_time =
10824 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10825 if (!admitted_time)
10826 return -EINVAL;
10827 }
10828
10829 wdev_lock(wdev);
10830 switch (wdev->iftype) {
10831 case NL80211_IFTYPE_STATION:
10832 case NL80211_IFTYPE_P2P_CLIENT:
10833 if (wdev->current_bss)
10834 break;
10835 err = -ENOTCONN;
10836 goto out;
10837 default:
10838 err = -EOPNOTSUPP;
10839 goto out;
10840 }
10841
10842 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10843
10844 out:
10845 wdev_unlock(wdev);
10846 return err;
10847}
10848
10849static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10850{
10851 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10852 struct net_device *dev = info->user_ptr[1];
10853 struct wireless_dev *wdev = dev->ieee80211_ptr;
10854 const u8 *peer;
10855 u8 tsid;
10856 int err;
10857
10858 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10859 return -EINVAL;
10860
10861 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10862 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10863
10864 wdev_lock(wdev);
10865 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10866 wdev_unlock(wdev);
10867
10868 return err;
10869}
10870
1057d35e
AN		 10871static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10872 struct genl_info *info)
10873{
10874 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10875 struct net_device *dev = info->user_ptr[1];
10876 struct wireless_dev *wdev = dev->ieee80211_ptr;
10877 struct cfg80211_chan_def chandef = {};
10878 const u8 *addr;
10879 u8 oper_class;
10880 int err;
10881
10882 if (!rdev->ops->tdls_channel_switch ||
10883 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10884 return -EOPNOTSUPP;
10885
10886 switch (dev->ieee80211_ptr->iftype) {
10887 case NL80211_IFTYPE_STATION:
10888 case NL80211_IFTYPE_P2P_CLIENT:
10889 break;
10890 default:
10891 return -EOPNOTSUPP;
10892 }
10893
10894 if (!info->attrs[NL80211_ATTR_MAC] ||
10895 !info->attrs[NL80211_ATTR_OPER_CLASS])
10896 return -EINVAL;
10897
10898 err = nl80211_parse_chandef(rdev, info, &chandef);
10899 if (err)
10900 return err;
10901
10902 /*
10903 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10904 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10905 * specification is not defined for them.
10906 */
57fbcce3 10907 if (chandef.chan->band == NL80211_BAND_2GHZ &&
1057d35e
AN		 10908 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10909 chandef.width != NL80211_CHAN_WIDTH_20)
10910 return -EINVAL;
10911
10912 /* we will be active on the TDLS link */
923b352f
AN		 10913 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10914 wdev->iftype))
1057d35e
AN		 10915 return -EINVAL;
10916
10917 /* don't allow switching to DFS channels */
10918 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10919 return -EINVAL;
10920
10921 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10922 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10923
10924 wdev_lock(wdev);
10925 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10926 wdev_unlock(wdev);
10927
10928 return err;
10929}
10930
10931static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10932 struct genl_info *info)
10933{
10934 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10935 struct net_device *dev = info->user_ptr[1];
10936 struct wireless_dev *wdev = dev->ieee80211_ptr;
10937 const u8 *addr;
10938
10939 if (!rdev->ops->tdls_channel_switch ||
10940 !rdev->ops->tdls_cancel_channel_switch ||
10941 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10942 return -EOPNOTSUPP;
10943
10944 switch (dev->ieee80211_ptr->iftype) {
10945 case NL80211_IFTYPE_STATION:
10946 case NL80211_IFTYPE_P2P_CLIENT:
10947 break;
10948 default:
10949 return -EOPNOTSUPP;
10950 }
10951
10952 if (!info->attrs[NL80211_ATTR_MAC])
10953 return -EINVAL;
10954
10955 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10956
10957 wdev_lock(wdev);
10958 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10959 wdev_unlock(wdev);
10960
10961 return 0;
10962}
10963
4c476991
JB		 10964#define NL80211_FLAG_NEED_WIPHY 0x01
10965#define NL80211_FLAG_NEED_NETDEV 0x02
10966#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10967#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10968#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10969 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10970#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10971/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10972#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10973 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10974#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10975
f84f771d 10976static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10977 struct genl_info *info)
10978{
10979 struct cfg80211_registered_device *rdev;
89a54e48 10980 struct wireless_dev *wdev;
4c476991 10981 struct net_device *dev;
4c476991
JB		 10982 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10983
10984 if (rtnl)
10985 rtnl_lock();
10986
10987 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10988 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10989 if (IS_ERR(rdev)) {
10990 if (rtnl)
10991 rtnl_unlock();
10992 return PTR_ERR(rdev);
10993 }
10994 info->user_ptr[0] = rdev;
1bf614ef
JB		 10995 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10996 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 10997 ASSERT_RTNL();
10998
89a54e48
JB		 10999 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
11000 info->attrs);
11001 if (IS_ERR(wdev)) {
4c476991
JB		 11002 if (rtnl)
11003 rtnl_unlock();
89a54e48 11004 return PTR_ERR(wdev);
4c476991 11005 }
89a54e48 11006
89a54e48 11007 dev = wdev->netdev;
f26cbf40 11008 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 11009
1bf614ef
JB		 11010 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
11011 if (!dev) {
1bf614ef
JB		 11012 if (rtnl)
11013 rtnl_unlock();
11014 return -EINVAL;
11015 }
11016
11017 info->user_ptr[1] = dev;
11018 } else {
11019 info->user_ptr[1] = wdev;
41265714 11020 }
1bf614ef
JB		 11021
11022 if (dev) {
11023 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
11024 !netif_running(dev)) {
1bf614ef
JB		 11025 if (rtnl)
11026 rtnl_unlock();
11027 return -ENETDOWN;
11028 }
11029
11030 dev_hold(dev);
98104fde
JB		 11031 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
11032 if (!wdev->p2p_started) {
98104fde
JB		 11033 if (rtnl)
11034 rtnl_unlock();
11035 return -ENETDOWN;
11036 }
41265714 11037 }
89a54e48 11038
4c476991 11039 info->user_ptr[0] = rdev;
4c476991
JB		 11040 }
11041
11042 return 0;
11043}
11044
f84f771d 11045static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 11046 struct genl_info *info)
11047{
1bf614ef
JB		 11048 if (info->user_ptr[1]) {
11049 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
11050 struct wireless_dev *wdev = info->user_ptr[1];
11051
11052 if (wdev->netdev)
11053 dev_put(wdev->netdev);
11054 } else {
11055 dev_put(info->user_ptr[1]);
11056 }
11057 }
5393b917 11058
4c476991
JB		 11059 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
11060 rtnl_unlock();
5393b917
JB		 11061
11062 /* If needed, clear the netlink message payload from the SKB
11063 * as it might contain key data that shouldn't stick around on
11064 * the heap after the SKB is freed. The netlink message header
11065 * is still needed for further processing, so leave it intact.
11066 */
11067 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
11068 struct nlmsghdr *nlh = nlmsg_hdr(skb);
11069
11070 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
11071 }
4c476991
JB		 11072}
11073
4534de83 11074static const struct genl_ops nl80211_ops[] = {
55682965
JB		 11075 {
11076 .cmd = NL80211_CMD_GET_WIPHY,
11077 .doit = nl80211_get_wiphy,
11078 .dumpit = nl80211_dump_wiphy,
86e8cf98 11079 .done = nl80211_dump_wiphy_done,
55682965
JB		 11080 .policy = nl80211_policy,
11081 /* can be retrieved by unprivileged users */
5fe231e8
JB		 11082 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11083 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11084 },
11085 {
11086 .cmd = NL80211_CMD_SET_WIPHY,
11087 .doit = nl80211_set_wiphy,
11088 .policy = nl80211_policy,
5617c6cd 11089 .flags = GENL_UNS_ADMIN_PERM,
4c476991 11090 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 11091 },
11092 {
11093 .cmd = NL80211_CMD_GET_INTERFACE,
11094 .doit = nl80211_get_interface,
11095 .dumpit = nl80211_dump_interface,
11096 .policy = nl80211_policy,
11097 /* can be retrieved by unprivileged users */
5fe231e8
JB		 11098 .internal_flags = NL80211_FLAG_NEED_WDEV |
11099 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11100 },
11101 {
11102 .cmd = NL80211_CMD_SET_INTERFACE,
11103 .doit = nl80211_set_interface,
11104 .policy = nl80211_policy,
5617c6cd 11105 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11106 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11107 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11108 },
11109 {
11110 .cmd = NL80211_CMD_NEW_INTERFACE,
11111 .doit = nl80211_new_interface,
11112 .policy = nl80211_policy,
5617c6cd 11113 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11114 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11115 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11116 },
11117 {
11118 .cmd = NL80211_CMD_DEL_INTERFACE,
11119 .doit = nl80211_del_interface,
11120 .policy = nl80211_policy,
5617c6cd 11121 .flags = GENL_UNS_ADMIN_PERM,
84efbb84 11122 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11123 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11124 },
11125 {
11126 .cmd = NL80211_CMD_GET_KEY,
11127 .doit = nl80211_get_key,
11128 .policy = nl80211_policy,
5617c6cd 11129 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11130 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11131 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11132 },
11133 {
11134 .cmd = NL80211_CMD_SET_KEY,
11135 .doit = nl80211_set_key,
11136 .policy = nl80211_policy,
5617c6cd 11137 .flags = GENL_UNS_ADMIN_PERM,
41265714 11138 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11139 NL80211_FLAG_NEED_RTNL |
11140 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 11141 },
11142 {
11143 .cmd = NL80211_CMD_NEW_KEY,
11144 .doit = nl80211_new_key,
11145 .policy = nl80211_policy,
5617c6cd 11146 .flags = GENL_UNS_ADMIN_PERM,
41265714 11147 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11148 NL80211_FLAG_NEED_RTNL |
11149 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 11150 },
11151 {
11152 .cmd = NL80211_CMD_DEL_KEY,
11153 .doit = nl80211_del_key,
11154 .policy = nl80211_policy,
5617c6cd 11155 .flags = GENL_UNS_ADMIN_PERM,
41265714 11156 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11157 NL80211_FLAG_NEED_RTNL,
55682965 11158 },
ed1b6cc7
JB		 11159 {
11160 .cmd = NL80211_CMD_SET_BEACON,
11161 .policy = nl80211_policy,
5617c6cd 11162 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11163 .doit = nl80211_set_beacon,
2b5f8b0b 11164 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11165 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11166 },
11167 {
8860020e 11168 .cmd = NL80211_CMD_START_AP,
ed1b6cc7 11169 .policy = nl80211_policy,
5617c6cd 11170 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11171 .doit = nl80211_start_ap,
2b5f8b0b 11172 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11173 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11174 },
11175 {
8860020e 11176 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7 11177 .policy = nl80211_policy,
5617c6cd 11178 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11179 .doit = nl80211_stop_ap,
2b5f8b0b 11180 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11181 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 11182 },
5727ef1b
JB		 11183 {
11184 .cmd = NL80211_CMD_GET_STATION,
11185 .doit = nl80211_get_station,
2ec600d6 11186 .dumpit = nl80211_dump_station,
5727ef1b 11187 .policy = nl80211_policy,
4c476991
JB		 11188 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11189 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11190 },
11191 {
11192 .cmd = NL80211_CMD_SET_STATION,
11193 .doit = nl80211_set_station,
11194 .policy = nl80211_policy,
5617c6cd 11195 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11196 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11197 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11198 },
11199 {
11200 .cmd = NL80211_CMD_NEW_STATION,
11201 .doit = nl80211_new_station,
11202 .policy = nl80211_policy,
5617c6cd 11203 .flags = GENL_UNS_ADMIN_PERM,
41265714 11204 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11205 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11206 },
11207 {
11208 .cmd = NL80211_CMD_DEL_STATION,
11209 .doit = nl80211_del_station,
11210 .policy = nl80211_policy,
5617c6cd 11211 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11212 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11213 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11214 },
11215 {
11216 .cmd = NL80211_CMD_GET_MPATH,
11217 .doit = nl80211_get_mpath,
11218 .dumpit = nl80211_dump_mpath,
11219 .policy = nl80211_policy,
5617c6cd 11220 .flags = GENL_UNS_ADMIN_PERM,
41265714 11221 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11222 NL80211_FLAG_NEED_RTNL,
2ec600d6 11223 },
66be7d2b
HR		 11224 {
11225 .cmd = NL80211_CMD_GET_MPP,
11226 .doit = nl80211_get_mpp,
11227 .dumpit = nl80211_dump_mpp,
11228 .policy = nl80211_policy,
5617c6cd 11229 .flags = GENL_UNS_ADMIN_PERM,
66be7d2b
HR		 11230 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11231 NL80211_FLAG_NEED_RTNL,
11232 },
2ec600d6
LCC		 11233 {
11234 .cmd = NL80211_CMD_SET_MPATH,
11235 .doit = nl80211_set_mpath,
11236 .policy = nl80211_policy,
5617c6cd 11237 .flags = GENL_UNS_ADMIN_PERM,
41265714 11238 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11239 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11240 },
11241 {
11242 .cmd = NL80211_CMD_NEW_MPATH,
11243 .doit = nl80211_new_mpath,
11244 .policy = nl80211_policy,
5617c6cd 11245 .flags = GENL_UNS_ADMIN_PERM,
41265714 11246 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11247 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11248 },
11249 {
11250 .cmd = NL80211_CMD_DEL_MPATH,
11251 .doit = nl80211_del_mpath,
11252 .policy = nl80211_policy,
5617c6cd 11253 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11254 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11255 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 11256 },
11257 {
11258 .cmd = NL80211_CMD_SET_BSS,
11259 .doit = nl80211_set_bss,
11260 .policy = nl80211_policy,
5617c6cd 11261 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11262 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11263 NL80211_FLAG_NEED_RTNL,
b2e1b302 11264 },
f130347c
LR		 11265 {
11266 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 11267 .doit = nl80211_get_reg_do,
11268 .dumpit = nl80211_get_reg_dump,
f130347c 11269 .policy = nl80211_policy,
5fe231e8 11270 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 11271 /* can be retrieved by unprivileged users */
11272 },
b6863036 11273#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 11274 {
11275 .cmd = NL80211_CMD_SET_REG,
11276 .doit = nl80211_set_reg,
11277 .policy = nl80211_policy,
11278 .flags = GENL_ADMIN_PERM,
5fe231e8 11279 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 11280 },
b6863036 11281#endif
b2e1b302
LR		 11282 {
11283 .cmd = NL80211_CMD_REQ_SET_REG,
11284 .doit = nl80211_req_set_reg,
11285 .policy = nl80211_policy,
93da9cc1 11286 .flags = GENL_ADMIN_PERM,
11287 },
11288 {
24bdd9f4
JC		 11289 .cmd = NL80211_CMD_GET_MESH_CONFIG,
11290 .doit = nl80211_get_mesh_config,
93da9cc1 11291 .policy = nl80211_policy,
11292 /* can be retrieved by unprivileged users */
2b5f8b0b 11293 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11294 NL80211_FLAG_NEED_RTNL,
93da9cc1 11295 },
11296 {
24bdd9f4
JC		 11297 .cmd = NL80211_CMD_SET_MESH_CONFIG,
11298 .doit = nl80211_update_mesh_config,
93da9cc1 11299 .policy = nl80211_policy,
5617c6cd 11300 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c 11301 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11302 NL80211_FLAG_NEED_RTNL,
9aed3cc1 11303 },
2a519311
JB		 11304 {
11305 .cmd = NL80211_CMD_TRIGGER_SCAN,
11306 .doit = nl80211_trigger_scan,
11307 .policy = nl80211_policy,
5617c6cd 11308 .flags = GENL_UNS_ADMIN_PERM,
fd014284 11309 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11310 NL80211_FLAG_NEED_RTNL,
2a519311 11311 },
91d3ab46
VK		 11312 {
11313 .cmd = NL80211_CMD_ABORT_SCAN,
11314 .doit = nl80211_abort_scan,
11315 .policy = nl80211_policy,
5617c6cd 11316 .flags = GENL_UNS_ADMIN_PERM,
91d3ab46
VK		 11317 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11318 NL80211_FLAG_NEED_RTNL,
11319 },
2a519311
JB		 11320 {
11321 .cmd = NL80211_CMD_GET_SCAN,
11322 .policy = nl80211_policy,
11323 .dumpit = nl80211_dump_scan,
11324 },
807f8a8c
LC		 11325 {
11326 .cmd = NL80211_CMD_START_SCHED_SCAN,
11327 .doit = nl80211_start_sched_scan,
11328 .policy = nl80211_policy,
5617c6cd 11329 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 11330 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11331 NL80211_FLAG_NEED_RTNL,
11332 },
11333 {
11334 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
11335 .doit = nl80211_stop_sched_scan,
11336 .policy = nl80211_policy,
5617c6cd 11337 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 11338 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11339 NL80211_FLAG_NEED_RTNL,
11340 },
636a5d36
JM		 11341 {
11342 .cmd = NL80211_CMD_AUTHENTICATE,
11343 .doit = nl80211_authenticate,
11344 .policy = nl80211_policy,
5617c6cd 11345 .flags = GENL_UNS_ADMIN_PERM,
41265714 11346 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11347 NL80211_FLAG_NEED_RTNL |
11348 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 11349 },
11350 {
11351 .cmd = NL80211_CMD_ASSOCIATE,
11352 .doit = nl80211_associate,
11353 .policy = nl80211_policy,
5617c6cd 11354 .flags = GENL_UNS_ADMIN_PERM,
41265714 11355 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11356 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11357 },
11358 {
11359 .cmd = NL80211_CMD_DEAUTHENTICATE,
11360 .doit = nl80211_deauthenticate,
11361 .policy = nl80211_policy,
5617c6cd 11362 .flags = GENL_UNS_ADMIN_PERM,
41265714 11363 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11364 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11365 },
11366 {
11367 .cmd = NL80211_CMD_DISASSOCIATE,
11368 .doit = nl80211_disassociate,
11369 .policy = nl80211_policy,
5617c6cd 11370 .flags = GENL_UNS_ADMIN_PERM,
41265714 11371 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11372 NL80211_FLAG_NEED_RTNL,
636a5d36 11373 },
04a773ad
JB		 11374 {
11375 .cmd = NL80211_CMD_JOIN_IBSS,
11376 .doit = nl80211_join_ibss,
11377 .policy = nl80211_policy,
5617c6cd 11378 .flags = GENL_UNS_ADMIN_PERM,
41265714 11379 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11380 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 11381 },
11382 {
11383 .cmd = NL80211_CMD_LEAVE_IBSS,
11384 .doit = nl80211_leave_ibss,
11385 .policy = nl80211_policy,
5617c6cd 11386 .flags = GENL_UNS_ADMIN_PERM,
41265714 11387 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11388 NL80211_FLAG_NEED_RTNL,
04a773ad 11389 },
aff89a9b
JB		 11390#ifdef CONFIG_NL80211_TESTMODE
11391 {
11392 .cmd = NL80211_CMD_TESTMODE,
11393 .doit = nl80211_testmode_do,
71063f0e 11394 .dumpit = nl80211_testmode_dump,
aff89a9b 11395 .policy = nl80211_policy,
5617c6cd 11396 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11397 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11398 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 11399 },
11400#endif
b23aa676
SO		 11401 {
11402 .cmd = NL80211_CMD_CONNECT,
11403 .doit = nl80211_connect,
11404 .policy = nl80211_policy,
5617c6cd 11405 .flags = GENL_UNS_ADMIN_PERM,
41265714 11406 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11407 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 11408 },
11409 {
11410 .cmd = NL80211_CMD_DISCONNECT,
11411 .doit = nl80211_disconnect,
11412 .policy = nl80211_policy,
5617c6cd 11413 .flags = GENL_UNS_ADMIN_PERM,
41265714 11414 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11415 NL80211_FLAG_NEED_RTNL,
b23aa676 11416 },
463d0183
JB		 11417 {
11418 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11419 .doit = nl80211_wiphy_netns,
11420 .policy = nl80211_policy,
5617c6cd 11421 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11422 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11423 NL80211_FLAG_NEED_RTNL,
463d0183 11424 },
61fa713c
HS		 11425 {
11426 .cmd = NL80211_CMD_GET_SURVEY,
11427 .policy = nl80211_policy,
11428 .dumpit = nl80211_dump_survey,
11429 },
67fbb16b
SO		 11430 {
11431 .cmd = NL80211_CMD_SET_PMKSA,
11432 .doit = nl80211_setdel_pmksa,
11433 .policy = nl80211_policy,
5617c6cd 11434 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11435 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11436 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11437 },
11438 {
11439 .cmd = NL80211_CMD_DEL_PMKSA,
11440 .doit = nl80211_setdel_pmksa,
11441 .policy = nl80211_policy,
5617c6cd 11442 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11443 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11444 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11445 },
11446 {
11447 .cmd = NL80211_CMD_FLUSH_PMKSA,
11448 .doit = nl80211_flush_pmksa,
11449 .policy = nl80211_policy,
5617c6cd 11450 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11451 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11452 NL80211_FLAG_NEED_RTNL,
67fbb16b 11453 },
9588bbd5
JM		 11454 {
11455 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11456 .doit = nl80211_remain_on_channel,
11457 .policy = nl80211_policy,
5617c6cd 11458 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11459 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11460 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 11461 },
11462 {
11463 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11464 .doit = nl80211_cancel_remain_on_channel,
11465 .policy = nl80211_policy,
5617c6cd 11466 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11467 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11468 NL80211_FLAG_NEED_RTNL,
9588bbd5 11469 },
13ae75b1
JM		 11470 {
11471 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11472 .doit = nl80211_set_tx_bitrate_mask,
11473 .policy = nl80211_policy,
5617c6cd 11474 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11475 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11476 NL80211_FLAG_NEED_RTNL,
13ae75b1 11477 },
026331c4 11478 {
2e161f78
JB		 11479 .cmd = NL80211_CMD_REGISTER_FRAME,
11480 .doit = nl80211_register_mgmt,
026331c4 11481 .policy = nl80211_policy,
5617c6cd 11482 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11483 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11484 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 11485 },
11486 {
2e161f78
JB		 11487 .cmd = NL80211_CMD_FRAME,
11488 .doit = nl80211_tx_mgmt,
026331c4 11489 .policy = nl80211_policy,
5617c6cd 11490 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11491 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 11492 NL80211_FLAG_NEED_RTNL,
11493 },
11494 {
11495 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11496 .doit = nl80211_tx_mgmt_cancel_wait,
11497 .policy = nl80211_policy,
5617c6cd 11498 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11499 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11500 NL80211_FLAG_NEED_RTNL,
026331c4 11501 },
ffb9eb3d
KV		 11502 {
11503 .cmd = NL80211_CMD_SET_POWER_SAVE,
11504 .doit = nl80211_set_power_save,
11505 .policy = nl80211_policy,
5617c6cd 11506 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11507 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11508 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 11509 },
11510 {
11511 .cmd = NL80211_CMD_GET_POWER_SAVE,
11512 .doit = nl80211_get_power_save,
11513 .policy = nl80211_policy,
11514 /* can be retrieved by unprivileged users */
4c476991
JB		 11515 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11516 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 11517 },
d6dc1a38
JO		 11518 {
11519 .cmd = NL80211_CMD_SET_CQM,
11520 .doit = nl80211_set_cqm,
11521 .policy = nl80211_policy,
5617c6cd 11522 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11523 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11524 NL80211_FLAG_NEED_RTNL,
d6dc1a38 11525 },
f444de05
JB		 11526 {
11527 .cmd = NL80211_CMD_SET_CHANNEL,
11528 .doit = nl80211_set_channel,
11529 .policy = nl80211_policy,
5617c6cd 11530 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11531 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11532 NL80211_FLAG_NEED_RTNL,
f444de05 11533 },
e8347eba
BJ		 11534 {
11535 .cmd = NL80211_CMD_SET_WDS_PEER,
11536 .doit = nl80211_set_wds_peer,
11537 .policy = nl80211_policy,
5617c6cd 11538 .flags = GENL_UNS_ADMIN_PERM,
43b19952
JB		 11539 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11540 NL80211_FLAG_NEED_RTNL,
e8347eba 11541 },
29cbe68c
JB		 11542 {
11543 .cmd = NL80211_CMD_JOIN_MESH,
11544 .doit = nl80211_join_mesh,
11545 .policy = nl80211_policy,
5617c6cd 11546 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 11547 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11548 NL80211_FLAG_NEED_RTNL,
11549 },
11550 {
11551 .cmd = NL80211_CMD_LEAVE_MESH,
11552 .doit = nl80211_leave_mesh,
11553 .policy = nl80211_policy,
5617c6cd 11554 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 11555 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11556 NL80211_FLAG_NEED_RTNL,
11557 },
6e0bd6c3
RL		 11558 {
11559 .cmd = NL80211_CMD_JOIN_OCB,
11560 .doit = nl80211_join_ocb,
11561 .policy = nl80211_policy,
5617c6cd 11562 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 11563 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11564 NL80211_FLAG_NEED_RTNL,
11565 },
11566 {
11567 .cmd = NL80211_CMD_LEAVE_OCB,
11568 .doit = nl80211_leave_ocb,
11569 .policy = nl80211_policy,
5617c6cd 11570 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 11571 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11572 NL80211_FLAG_NEED_RTNL,
11573 },
dfb89c56 11574#ifdef CONFIG_PM
ff1b6e69
JB		 11575 {
11576 .cmd = NL80211_CMD_GET_WOWLAN,
11577 .doit = nl80211_get_wowlan,
11578 .policy = nl80211_policy,
11579 /* can be retrieved by unprivileged users */
11580 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11581 NL80211_FLAG_NEED_RTNL,
11582 },
11583 {
11584 .cmd = NL80211_CMD_SET_WOWLAN,
11585 .doit = nl80211_set_wowlan,
11586 .policy = nl80211_policy,
5617c6cd 11587 .flags = GENL_UNS_ADMIN_PERM,
ff1b6e69
JB		 11588 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11589 NL80211_FLAG_NEED_RTNL,
11590 },
dfb89c56 11591#endif
e5497d76
JB		 11592 {
11593 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11594 .doit = nl80211_set_rekey_data,
11595 .policy = nl80211_policy,
5617c6cd 11596 .flags = GENL_UNS_ADMIN_PERM,
e5497d76 11597 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11598 NL80211_FLAG_NEED_RTNL |
11599 NL80211_FLAG_CLEAR_SKB,
e5497d76 11600 },
109086ce
AN		 11601 {
11602 .cmd = NL80211_CMD_TDLS_MGMT,
11603 .doit = nl80211_tdls_mgmt,
11604 .policy = nl80211_policy,
5617c6cd 11605 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 11606 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11607 NL80211_FLAG_NEED_RTNL,
11608 },
11609 {
11610 .cmd = NL80211_CMD_TDLS_OPER,
11611 .doit = nl80211_tdls_oper,
11612 .policy = nl80211_policy,
5617c6cd 11613 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 11614 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11615 NL80211_FLAG_NEED_RTNL,
11616 },
28946da7
JB		 11617 {
11618 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11619 .doit = nl80211_register_unexpected_frame,
11620 .policy = nl80211_policy,
5617c6cd 11621 .flags = GENL_UNS_ADMIN_PERM,
28946da7
JB		 11622 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11623 NL80211_FLAG_NEED_RTNL,
11624 },
7f6cf311
JB		 11625 {
11626 .cmd = NL80211_CMD_PROBE_CLIENT,
11627 .doit = nl80211_probe_client,
11628 .policy = nl80211_policy,
5617c6cd 11629 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11630 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 11631 NL80211_FLAG_NEED_RTNL,
11632 },
5e760230
JB		 11633 {
11634 .cmd = NL80211_CMD_REGISTER_BEACONS,
11635 .doit = nl80211_register_beacons,
11636 .policy = nl80211_policy,
5617c6cd 11637 .flags = GENL_UNS_ADMIN_PERM,
5e760230
JB		 11638 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11639 NL80211_FLAG_NEED_RTNL,
11640 },
1d9d9213
SW		 11641 {
11642 .cmd = NL80211_CMD_SET_NOACK_MAP,
11643 .doit = nl80211_set_noack_map,
11644 .policy = nl80211_policy,
5617c6cd 11645 .flags = GENL_UNS_ADMIN_PERM,
1d9d9213
SW		 11646 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11647 NL80211_FLAG_NEED_RTNL,
11648 },
98104fde
JB		 11649 {
11650 .cmd = NL80211_CMD_START_P2P_DEVICE,
11651 .doit = nl80211_start_p2p_device,
11652 .policy = nl80211_policy,
5617c6cd 11653 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 11654 .internal_flags = NL80211_FLAG_NEED_WDEV |
11655 NL80211_FLAG_NEED_RTNL,
11656 },
11657 {
11658 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11659 .doit = nl80211_stop_p2p_device,
11660 .policy = nl80211_policy,
5617c6cd 11661 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 11662 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11663 NL80211_FLAG_NEED_RTNL,
11664 },
f4e583c8
AQ		 11665 {
11666 .cmd = NL80211_CMD_SET_MCAST_RATE,
11667 .doit = nl80211_set_mcast_rate,
77765eaf 11668 .policy = nl80211_policy,
5617c6cd 11669 .flags = GENL_UNS_ADMIN_PERM,
77765eaf
VT		 11670 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11671 NL80211_FLAG_NEED_RTNL,
11672 },
11673 {
11674 .cmd = NL80211_CMD_SET_MAC_ACL,
11675 .doit = nl80211_set_mac_acl,
f4e583c8 11676 .policy = nl80211_policy,
5617c6cd 11677 .flags = GENL_UNS_ADMIN_PERM,
f4e583c8
AQ		 11678 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11679 NL80211_FLAG_NEED_RTNL,
11680 },
04f39047
SW		 11681 {
11682 .cmd = NL80211_CMD_RADAR_DETECT,
11683 .doit = nl80211_start_radar_detection,
11684 .policy = nl80211_policy,
5617c6cd 11685 .flags = GENL_UNS_ADMIN_PERM,
04f39047
SW		 11686 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11687 NL80211_FLAG_NEED_RTNL,
11688 },
3713b4e3
JB		 11689 {
11690 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11691 .doit = nl80211_get_protocol_features,
11692 .policy = nl80211_policy,
11693 },
355199e0
JM		 11694 {
11695 .cmd = NL80211_CMD_UPDATE_FT_IES,
11696 .doit = nl80211_update_ft_ies,
11697 .policy = nl80211_policy,
5617c6cd 11698 .flags = GENL_UNS_ADMIN_PERM,
355199e0
JM		 11699 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11700 NL80211_FLAG_NEED_RTNL,
11701 },
5de17984
AS		 11702 {
11703 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11704 .doit = nl80211_crit_protocol_start,
11705 .policy = nl80211_policy,
5617c6cd 11706 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 11707 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11708 NL80211_FLAG_NEED_RTNL,
11709 },
11710 {
11711 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11712 .doit = nl80211_crit_protocol_stop,
11713 .policy = nl80211_policy,
5617c6cd 11714 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 11715 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11716 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 11717 },
11718 {
11719 .cmd = NL80211_CMD_GET_COALESCE,
11720 .doit = nl80211_get_coalesce,
11721 .policy = nl80211_policy,
11722 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11723 NL80211_FLAG_NEED_RTNL,
11724 },
11725 {
11726 .cmd = NL80211_CMD_SET_COALESCE,
11727 .doit = nl80211_set_coalesce,
11728 .policy = nl80211_policy,
5617c6cd 11729 .flags = GENL_UNS_ADMIN_PERM,
be29b99a
AK		 11730 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11731 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 11732 },
11733 {
11734 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11735 .doit = nl80211_channel_switch,
11736 .policy = nl80211_policy,
5617c6cd 11737 .flags = GENL_UNS_ADMIN_PERM,
16ef1fe2
SW		 11738 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11739 NL80211_FLAG_NEED_RTNL,
11740 },
ad7e718c
JB		 11741 {
11742 .cmd = NL80211_CMD_VENDOR,
11743 .doit = nl80211_vendor_cmd,
7bdbe400 11744 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c 11745 .policy = nl80211_policy,
5617c6cd 11746 .flags = GENL_UNS_ADMIN_PERM,
ad7e718c
JB		 11747 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11748 NL80211_FLAG_NEED_RTNL,
11749 },
fa9ffc74
KP		 11750 {
11751 .cmd = NL80211_CMD_SET_QOS_MAP,
11752 .doit = nl80211_set_qos_map,
11753 .policy = nl80211_policy,
5617c6cd 11754 .flags = GENL_UNS_ADMIN_PERM,
fa9ffc74
KP		 11755 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11756 NL80211_FLAG_NEED_RTNL,
11757 },
960d01ac
JB		 11758 {
11759 .cmd = NL80211_CMD_ADD_TX_TS,
11760 .doit = nl80211_add_tx_ts,
11761 .policy = nl80211_policy,
5617c6cd 11762 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 11763 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11764 NL80211_FLAG_NEED_RTNL,
11765 },
11766 {
11767 .cmd = NL80211_CMD_DEL_TX_TS,
11768 .doit = nl80211_del_tx_ts,
11769 .policy = nl80211_policy,
5617c6cd 11770 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 11771 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11772 NL80211_FLAG_NEED_RTNL,
11773 },
1057d35e
AN		 11774 {
11775 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11776 .doit = nl80211_tdls_channel_switch,
11777 .policy = nl80211_policy,
5617c6cd 11778 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 11779 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11780 NL80211_FLAG_NEED_RTNL,
11781 },
11782 {
11783 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11784 .doit = nl80211_tdls_cancel_channel_switch,
11785 .policy = nl80211_policy,
5617c6cd 11786 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 11787 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11788 NL80211_FLAG_NEED_RTNL,
11789 },
55682965 11790};
9588bbd5 11791
55682965
JB		 11792/* notification functions */
11793
3bb20556
JB		 11794void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11795 enum nl80211_commands cmd)
55682965
JB		 11796{
11797 struct sk_buff *msg;
86e8cf98 11798 struct nl80211_dump_wiphy_state state = {};
55682965 11799
3bb20556
JB		 11800 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11801 cmd != NL80211_CMD_DEL_WIPHY);
11802
fd2120ca 11803 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 11804 if (!msg)
11805 return;
11806
3bb20556 11807 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 11808 nlmsg_free(msg);
11809 return;
11810 }
11811
68eb5503 11812 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11813 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 11814}
11815
362a415d
JB		 11816static int nl80211_add_scan_req(struct sk_buff *msg,
11817 struct cfg80211_registered_device *rdev)
11818{
11819 struct cfg80211_scan_request *req = rdev->scan_req;
11820 struct nlattr *nest;
11821 int i;
11822
11823 if (WARN_ON(!req))
11824 return 0;
11825
11826 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11827 if (!nest)
11828 goto nla_put_failure;
9360ffd1
DM		 11829 for (i = 0; i < req->n_ssids; i++) {
11830 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11831 goto nla_put_failure;
11832 }
362a415d
JB		 11833 nla_nest_end(msg, nest);
11834
11835 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11836 if (!nest)
11837 goto nla_put_failure;
9360ffd1
DM		 11838 for (i = 0; i < req->n_channels; i++) {
11839 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11840 goto nla_put_failure;
11841 }
362a415d
JB		 11842 nla_nest_end(msg, nest);
11843
9360ffd1
DM		 11844 if (req->ie &&
11845 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11846 goto nla_put_failure;
362a415d 11847
ae917c9f
JB		 11848 if (req->flags &&
11849 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11850 goto nla_put_failure;
ed473771 11851
1d76250b
AS		 11852 if (req->info.scan_start_tsf &&
11853 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
11854 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
11855 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
11856 req->info.tsf_bssid)))
11857 goto nla_put_failure;
11858
362a415d
JB		 11859 return 0;
11860 nla_put_failure:
11861 return -ENOBUFS;
11862}
11863
a538e2d5
JB		 11864static int nl80211_send_scan_msg(struct sk_buff *msg,
11865 struct cfg80211_registered_device *rdev,
fd014284 11866 struct wireless_dev *wdev,
15e47304 11867 u32 portid, u32 seq, int flags,
a538e2d5 11868 u32 cmd)
2a519311
JB		 11869{
11870 void *hdr;
11871
15e47304 11872 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11873 if (!hdr)
11874 return -1;
11875
9360ffd1 11876 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11877 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11878 wdev->netdev->ifindex)) ||
2dad624e
ND		 11879 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11880 NL80211_ATTR_PAD))
9360ffd1 11881 goto nla_put_failure;
2a519311 11882
362a415d
JB		 11883 /* ignore errors and send incomplete event anyway */
11884 nl80211_add_scan_req(msg, rdev);
2a519311 11885
053c095a
JB		 11886 genlmsg_end(msg, hdr);
11887 return 0;
2a519311
JB		 11888
11889 nla_put_failure:
11890 genlmsg_cancel(msg, hdr);
11891 return -EMSGSIZE;
11892}
11893
807f8a8c
LC		 11894static int
11895nl80211_send_sched_scan_msg(struct sk_buff *msg,
11896 struct cfg80211_registered_device *rdev,
11897 struct net_device *netdev,
15e47304 11898 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 11899{
11900 void *hdr;
11901
15e47304 11902 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 11903 if (!hdr)
11904 return -1;
11905
9360ffd1
DM		 11906 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11907 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11908 goto nla_put_failure;
807f8a8c 11909
053c095a
JB		 11910 genlmsg_end(msg, hdr);
11911 return 0;
807f8a8c
LC		 11912
11913 nla_put_failure:
11914 genlmsg_cancel(msg, hdr);
11915 return -EMSGSIZE;
11916}
11917
a538e2d5 11918void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 11919 struct wireless_dev *wdev)
a538e2d5
JB		 11920{
11921 struct sk_buff *msg;
11922
58050fce 11923 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 11924 if (!msg)
11925 return;
11926
fd014284 11927 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11928 NL80211_CMD_TRIGGER_SCAN) < 0) {
11929 nlmsg_free(msg);
11930 return;
11931 }
11932
68eb5503 11933 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11934 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11935}
11936
f9d15d16
JB		 11937struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11938 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11939{
11940 struct sk_buff *msg;
11941
fd2120ca 11942 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11943 if (!msg)
f9d15d16 11944 return NULL;
2a519311 11945
fd014284 11946 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11947 aborted ? NL80211_CMD_SCAN_ABORTED :
11948 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11949 nlmsg_free(msg);
f9d15d16 11950 return NULL;
2a519311
JB		 11951 }
11952
f9d15d16 11953 return msg;
2a519311
JB		 11954}
11955
f9d15d16
JB		 11956void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11957 struct sk_buff *msg)
2a519311 11958{
2a519311
JB		 11959 if (!msg)
11960 return;
11961
68eb5503 11962 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11963 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11964}
11965
807f8a8c
LC		 11966void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11967 struct net_device *netdev)
11968{
11969 struct sk_buff *msg;
11970
11971 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11972 if (!msg)
11973 return;
11974
11975 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11976 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11977 nlmsg_free(msg);
11978 return;
11979 }
11980
68eb5503 11981 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11982 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11983}
11984
11985void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11986 struct net_device *netdev, u32 cmd)
11987{
11988 struct sk_buff *msg;
11989
58050fce 11990 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11991 if (!msg)
11992 return;
11993
11994 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11995 nlmsg_free(msg);
11996 return;
11997 }
11998
68eb5503 11999 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12000 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 12001}
12002
b0d7aa59
JD		 12003static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
12004 struct regulatory_request *request)
73d54c9e 12005{
73d54c9e 12006 /* Userspace can always count this one always being set */
9360ffd1
DM		 12007 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
12008 goto nla_put_failure;
12009
12010 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
12011 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12012 NL80211_REGDOM_TYPE_WORLD))
12013 goto nla_put_failure;
12014 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
12015 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12016 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
12017 goto nla_put_failure;
12018 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
12019 request->intersect) {
12020 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12021 NL80211_REGDOM_TYPE_INTERSECTION))
12022 goto nla_put_failure;
12023 } else {
12024 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12025 NL80211_REGDOM_TYPE_COUNTRY) ||
12026 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
12027 request->alpha2))
12028 goto nla_put_failure;
12029 }
12030
ad30ca2c
AN		 12031 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
12032 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
12033
12034 if (wiphy &&
12035 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
12036 goto nla_put_failure;
1bdd716c
AN		 12037
12038 if (wiphy &&
12039 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
12040 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
12041 goto nla_put_failure;
ad30ca2c 12042 }
73d54c9e 12043
b0d7aa59
JD		 12044 return true;
12045
12046nla_put_failure:
12047 return false;
12048}
12049
12050/*
12051 * This can happen on global regulatory changes or device specific settings
12052 * based on custom regulatory domains.
12053 */
12054void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
12055 struct regulatory_request *request)
12056{
12057 struct sk_buff *msg;
12058 void *hdr;
12059
12060 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12061 if (!msg)
12062 return;
12063
12064 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
12065 if (!hdr) {
12066 nlmsg_free(msg);
12067 return;
12068 }
12069
12070 if (nl80211_reg_change_event_fill(msg, request) == false)
12071 goto nla_put_failure;
12072
3b7b72ee 12073 genlmsg_end(msg, hdr);
73d54c9e 12074
bc43b28c 12075 rcu_read_lock();
68eb5503 12076 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12077 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 12078 rcu_read_unlock();
73d54c9e
LR		 12079
12080 return;
12081
12082nla_put_failure:
12083 genlmsg_cancel(msg, hdr);
12084 nlmsg_free(msg);
12085}
12086
6039f6d2
JM		 12087static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
12088 struct net_device *netdev,
12089 const u8 *buf, size_t len,
b0b6aa2c
EP		 12090 enum nl80211_commands cmd, gfp_t gfp,
12091 int uapsd_queues)
6039f6d2
JM		 12092{
12093 struct sk_buff *msg;
12094 void *hdr;
12095
e6d6e342 12096 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 12097 if (!msg)
12098 return;
12099
12100 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12101 if (!hdr) {
12102 nlmsg_free(msg);
12103 return;
12104 }
12105
9360ffd1
DM		 12106 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12107 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12108 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
12109 goto nla_put_failure;
6039f6d2 12110
b0b6aa2c
EP		 12111 if (uapsd_queues >= 0) {
12112 struct nlattr *nla_wmm =
12113 nla_nest_start(msg, NL80211_ATTR_STA_WME);
12114 if (!nla_wmm)
12115 goto nla_put_failure;
12116
12117 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
12118 uapsd_queues))
12119 goto nla_put_failure;
12120
12121 nla_nest_end(msg, nla_wmm);
12122 }
12123
3b7b72ee 12124 genlmsg_end(msg, hdr);
6039f6d2 12125
68eb5503 12126 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12127 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 12128 return;
12129
12130 nla_put_failure:
12131 genlmsg_cancel(msg, hdr);
12132 nlmsg_free(msg);
12133}
12134
12135void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12136 struct net_device *netdev, const u8 *buf,
12137 size_t len, gfp_t gfp)
6039f6d2
JM		 12138{
12139 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12140 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 12141}
12142
12143void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
12144 struct net_device *netdev, const u8 *buf,
b0b6aa2c 12145 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 12146{
e6d6e342 12147 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12148 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 12149}
12150
53b46b84 12151void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12152 struct net_device *netdev, const u8 *buf,
12153 size_t len, gfp_t gfp)
6039f6d2
JM		 12154{
12155 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12156 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 12157}
12158
53b46b84
JM		 12159void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
12160 struct net_device *netdev, const u8 *buf,
e6d6e342 12161 size_t len, gfp_t gfp)
6039f6d2
JM		 12162{
12163 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12164 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 12165}
12166
6ff57cf8
JB		 12167void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
12168 size_t len)
cf4e594e 12169{
947add36
JB		 12170 struct wireless_dev *wdev = dev->ieee80211_ptr;
12171 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12172 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 12173 const struct ieee80211_mgmt *mgmt = (void *)buf;
12174 u32 cmd;
947add36 12175
6ff57cf8
JB		 12176 if (WARN_ON(len < 2))
12177 return;
cf4e594e 12178
6ff57cf8
JB		 12179 if (ieee80211_is_deauth(mgmt->frame_control))
12180 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
12181 else
12182 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 12183
6ff57cf8 12184 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 12185 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 12186}
6ff57cf8 12187EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 12188
1b06bb40
LR		 12189static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
12190 struct net_device *netdev, int cmd,
e6d6e342 12191 const u8 *addr, gfp_t gfp)
1965c853
JM		 12192{
12193 struct sk_buff *msg;
12194 void *hdr;
12195
e6d6e342 12196 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 12197 if (!msg)
12198 return;
12199
12200 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12201 if (!hdr) {
12202 nlmsg_free(msg);
12203 return;
12204 }
12205
9360ffd1
DM		 12206 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12207 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12208 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
12209 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12210 goto nla_put_failure;
1965c853 12211
3b7b72ee 12212 genlmsg_end(msg, hdr);
1965c853 12213
68eb5503 12214 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12215 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 12216 return;
12217
12218 nla_put_failure:
12219 genlmsg_cancel(msg, hdr);
12220 nlmsg_free(msg);
12221}
12222
12223void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12224 struct net_device *netdev, const u8 *addr,
12225 gfp_t gfp)
1965c853
JM		 12226{
12227 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 12228 addr, gfp);
1965c853
JM		 12229}
12230
12231void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12232 struct net_device *netdev, const u8 *addr,
12233 gfp_t gfp)
1965c853 12234{
e6d6e342
JB		 12235 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
12236 addr, gfp);
1965c853
JM		 12237}
12238
b23aa676
SO		 12239void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
12240 struct net_device *netdev, const u8 *bssid,
12241 const u8 *req_ie, size_t req_ie_len,
12242 const u8 *resp_ie, size_t resp_ie_len,
bf1ecd21 12243 int status, gfp_t gfp)
b23aa676
SO		 12244{
12245 struct sk_buff *msg;
12246 void *hdr;
12247
58050fce 12248 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12249 if (!msg)
12250 return;
12251
12252 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
12253 if (!hdr) {
12254 nlmsg_free(msg);
12255 return;
12256 }
12257
9360ffd1
DM		 12258 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12259 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12260 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
bf1ecd21
JM		 12261 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
12262 status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
12263 status) ||
12264 (status < 0 && nla_put_flag(msg, NL80211_ATTR_TIMED_OUT)) ||
9360ffd1
DM		 12265 (req_ie &&
12266 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12267 (resp_ie &&
12268 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12269 goto nla_put_failure;
b23aa676 12270
3b7b72ee 12271 genlmsg_end(msg, hdr);
b23aa676 12272
68eb5503 12273 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12274 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12275 return;
12276
12277 nla_put_failure:
12278 genlmsg_cancel(msg, hdr);
12279 nlmsg_free(msg);
b23aa676
SO		 12280}
12281
12282void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
12283 struct net_device *netdev, const u8 *bssid,
12284 const u8 *req_ie, size_t req_ie_len,
12285 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
12286{
12287 struct sk_buff *msg;
12288 void *hdr;
12289
58050fce 12290 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12291 if (!msg)
12292 return;
12293
12294 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
12295 if (!hdr) {
12296 nlmsg_free(msg);
12297 return;
12298 }
12299
9360ffd1
DM		 12300 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12301 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12302 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
12303 (req_ie &&
12304 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12305 (resp_ie &&
12306 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12307 goto nla_put_failure;
b23aa676 12308
3b7b72ee 12309 genlmsg_end(msg, hdr);
b23aa676 12310
68eb5503 12311 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12312 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12313 return;
12314
12315 nla_put_failure:
12316 genlmsg_cancel(msg, hdr);
12317 nlmsg_free(msg);
b23aa676
SO		 12318}
12319
12320void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
12321 struct net_device *netdev, u16 reason,
667503dd 12322 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 12323{
12324 struct sk_buff *msg;
12325 void *hdr;
12326
58050fce 12327 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 12328 if (!msg)
12329 return;
12330
12331 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
12332 if (!hdr) {
12333 nlmsg_free(msg);
12334 return;
12335 }
12336
9360ffd1
DM		 12337 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12338 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12339 (from_ap && reason &&
12340 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
12341 (from_ap &&
12342 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
12343 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
12344 goto nla_put_failure;
b23aa676 12345
3b7b72ee 12346 genlmsg_end(msg, hdr);
b23aa676 12347
68eb5503 12348 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12349 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 12350 return;
12351
12352 nla_put_failure:
12353 genlmsg_cancel(msg, hdr);
12354 nlmsg_free(msg);
b23aa676
SO		 12355}
12356
04a773ad
JB		 12357void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
12358 struct net_device *netdev, const u8 *bssid,
12359 gfp_t gfp)
12360{
12361 struct sk_buff *msg;
12362 void *hdr;
12363
fd2120ca 12364 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 12365 if (!msg)
12366 return;
12367
12368 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
12369 if (!hdr) {
12370 nlmsg_free(msg);
12371 return;
12372 }
12373
9360ffd1
DM		 12374 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12375 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12376 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12377 goto nla_put_failure;
04a773ad 12378
3b7b72ee 12379 genlmsg_end(msg, hdr);
04a773ad 12380
68eb5503 12381 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12382 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 12383 return;
12384
12385 nla_put_failure:
12386 genlmsg_cancel(msg, hdr);
12387 nlmsg_free(msg);
12388}
12389
947add36
JB		 12390void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12391 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 12392{
947add36 12393 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12394 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 12395 struct sk_buff *msg;
12396 void *hdr;
12397
947add36
JB		 12398 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12399 return;
12400
12401 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12402
c93b5e71
JC		 12403 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12404 if (!msg)
12405 return;
12406
12407 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12408 if (!hdr) {
12409 nlmsg_free(msg);
12410 return;
12411 }
12412
9360ffd1 12413 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 12414 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12415 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 12416 (ie_len && ie &&
12417 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12418 goto nla_put_failure;
c93b5e71 12419
3b7b72ee 12420 genlmsg_end(msg, hdr);
c93b5e71 12421
68eb5503 12422 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12423 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 12424 return;
12425
12426 nla_put_failure:
12427 genlmsg_cancel(msg, hdr);
12428 nlmsg_free(msg);
12429}
947add36 12430EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 12431
a3b8b056
JM		 12432void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12433 struct net_device *netdev, const u8 *addr,
12434 enum nl80211_key_type key_type, int key_id,
e6d6e342 12435 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 12436{
12437 struct sk_buff *msg;
12438 void *hdr;
12439
e6d6e342 12440 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 12441 if (!msg)
12442 return;
12443
12444 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12445 if (!hdr) {
12446 nlmsg_free(msg);
12447 return;
12448 }
12449
9360ffd1
DM		 12450 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12451 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12452 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12453 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12454 (key_id != -1 &&
12455 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12456 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12457 goto nla_put_failure;
a3b8b056 12458
3b7b72ee 12459 genlmsg_end(msg, hdr);
a3b8b056 12460
68eb5503 12461 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12462 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 12463 return;
12464
12465 nla_put_failure:
12466 genlmsg_cancel(msg, hdr);
12467 nlmsg_free(msg);
12468}
12469
6bad8766
LR		 12470void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12471 struct ieee80211_channel *channel_before,
12472 struct ieee80211_channel *channel_after)
12473{
12474 struct sk_buff *msg;
12475 void *hdr;
12476 struct nlattr *nl_freq;
12477
fd2120ca 12478 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 12479 if (!msg)
12480 return;
12481
12482 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12483 if (!hdr) {
12484 nlmsg_free(msg);
12485 return;
12486 }
12487
12488 /*
12489 * Since we are applying the beacon hint to a wiphy we know its
12490 * wiphy_idx is valid
12491 */
9360ffd1
DM		 12492 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12493 goto nla_put_failure;
6bad8766
LR		 12494
12495 /* Before */
12496 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12497 if (!nl_freq)
12498 goto nla_put_failure;
cdc89b97 12499 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 12500 goto nla_put_failure;
12501 nla_nest_end(msg, nl_freq);
12502
12503 /* After */
12504 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12505 if (!nl_freq)
12506 goto nla_put_failure;
cdc89b97 12507 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 12508 goto nla_put_failure;
12509 nla_nest_end(msg, nl_freq);
12510
3b7b72ee 12511 genlmsg_end(msg, hdr);
6bad8766 12512
463d0183 12513 rcu_read_lock();
68eb5503 12514 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12515 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 12516 rcu_read_unlock();
6bad8766
LR		 12517
12518 return;
12519
12520nla_put_failure:
12521 genlmsg_cancel(msg, hdr);
12522 nlmsg_free(msg);
12523}
12524
9588bbd5
JM		 12525static void nl80211_send_remain_on_chan_event(
12526 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 12527 struct wireless_dev *wdev, u64 cookie,
9588bbd5 12528 struct ieee80211_channel *chan,
9588bbd5
JM		 12529 unsigned int duration, gfp_t gfp)
12530{
12531 struct sk_buff *msg;
12532 void *hdr;
12533
12534 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12535 if (!msg)
12536 return;
12537
12538 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12539 if (!hdr) {
12540 nlmsg_free(msg);
12541 return;
12542 }
12543
9360ffd1 12544 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12545 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12546 wdev->netdev->ifindex)) ||
2dad624e
ND		 12547 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12548 NL80211_ATTR_PAD) ||
9360ffd1 12549 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 12550 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12551 NL80211_CHAN_NO_HT) ||
2dad624e
ND		 12552 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12553 NL80211_ATTR_PAD))
9360ffd1 12554 goto nla_put_failure;
9588bbd5 12555
9360ffd1
DM		 12556 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12557 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12558 goto nla_put_failure;
9588bbd5 12559
3b7b72ee 12560 genlmsg_end(msg, hdr);
9588bbd5 12561
68eb5503 12562 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12563 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 12564 return;
12565
12566 nla_put_failure:
12567 genlmsg_cancel(msg, hdr);
12568 nlmsg_free(msg);
12569}
12570
947add36
JB		 12571void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12572 struct ieee80211_channel *chan,
12573 unsigned int duration, gfp_t gfp)
9588bbd5 12574{
947add36 12575 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12576 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12577
12578 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 12579 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 12580 rdev, wdev, cookie, chan,
42d97a59 12581 duration, gfp);
9588bbd5 12582}
947add36 12583EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 12584
947add36
JB		 12585void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12586 struct ieee80211_channel *chan,
12587 gfp_t gfp)
9588bbd5 12588{
947add36 12589 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12590 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12591
12592 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 12593 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 12594 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 12595}
947add36 12596EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 12597
947add36
JB		 12598void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12599 struct station_info *sinfo, gfp_t gfp)
98b62183 12600{
947add36 12601 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12602 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 12603 struct sk_buff *msg;
12604
947add36
JB		 12605 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12606
58050fce 12607 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 12608 if (!msg)
12609 return;
12610
cf5ead82 12611 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 12612 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 12613 nlmsg_free(msg);
12614 return;
12615 }
12616
68eb5503 12617 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12618 NL80211_MCGRP_MLME, gfp);
98b62183 12619}
947add36 12620EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 12621
cf5ead82
JB		 12622void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12623 struct station_info *sinfo, gfp_t gfp)
ec15e68b 12624{
947add36 12625 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12626 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 12627 struct sk_buff *msg;
cf5ead82
JB		 12628 struct station_info empty_sinfo = {};
12629
12630 if (!sinfo)
12631 sinfo = &empty_sinfo;
ec15e68b 12632
947add36
JB		 12633 trace_cfg80211_del_sta(dev, mac_addr);
12634
58050fce 12635 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 12636 if (!msg)
12637 return;
12638
cf5ead82 12639 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 12640 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 12641 nlmsg_free(msg);
12642 return;
12643 }
12644
68eb5503 12645 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12646 NL80211_MCGRP_MLME, gfp);
ec15e68b 12647}
cf5ead82 12648EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 12649
947add36
JB		 12650void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12651 enum nl80211_connect_failed_reason reason,
12652 gfp_t gfp)
ed44a951 12653{
947add36 12654 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12655 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 12656 struct sk_buff *msg;
12657 void *hdr;
12658
12659 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12660 if (!msg)
12661 return;
12662
12663 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12664 if (!hdr) {
12665 nlmsg_free(msg);
12666 return;
12667 }
12668
12669 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12670 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12671 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12672 goto nla_put_failure;
12673
12674 genlmsg_end(msg, hdr);
12675
68eb5503 12676 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12677 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 12678 return;
12679
12680 nla_put_failure:
12681 genlmsg_cancel(msg, hdr);
12682 nlmsg_free(msg);
12683}
947add36 12684EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 12685
b92ab5d8
JB		 12686static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12687 const u8 *addr, gfp_t gfp)
28946da7
JB		 12688{
12689 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12690 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 12691 struct sk_buff *msg;
12692 void *hdr;
15e47304 12693 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 12694
15e47304 12695 if (!nlportid)
28946da7
JB		 12696 return false;
12697
12698 msg = nlmsg_new(100, gfp);
12699 if (!msg)
12700 return true;
12701
b92ab5d8 12702 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 12703 if (!hdr) {
12704 nlmsg_free(msg);
12705 return true;
12706 }
12707
9360ffd1
DM		 12708 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12709 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12710 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12711 goto nla_put_failure;
28946da7 12712
9c90a9f6 12713 genlmsg_end(msg, hdr);
15e47304 12714 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 12715 return true;
12716
12717 nla_put_failure:
12718 genlmsg_cancel(msg, hdr);
12719 nlmsg_free(msg);
12720 return true;
12721}
12722
947add36
JB		 12723bool cfg80211_rx_spurious_frame(struct net_device *dev,
12724 const u8 *addr, gfp_t gfp)
b92ab5d8 12725{
947add36
JB		 12726 struct wireless_dev *wdev = dev->ieee80211_ptr;
12727 bool ret;
12728
12729 trace_cfg80211_rx_spurious_frame(dev, addr);
12730
12731 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12732 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12733 trace_cfg80211_return_bool(false);
12734 return false;
12735 }
12736 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12737 addr, gfp);
12738 trace_cfg80211_return_bool(ret);
12739 return ret;
b92ab5d8 12740}
947add36 12741EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 12742
947add36
JB		 12743bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12744 const u8 *addr, gfp_t gfp)
b92ab5d8 12745{
947add36
JB		 12746 struct wireless_dev *wdev = dev->ieee80211_ptr;
12747 bool ret;
12748
12749 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12750
12751 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12752 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12753 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12754 trace_cfg80211_return_bool(false);
12755 return false;
12756 }
12757 ret = __nl80211_unexpected_frame(dev,
12758 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12759 addr, gfp);
12760 trace_cfg80211_return_bool(ret);
12761 return ret;
b92ab5d8 12762}
947add36 12763EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 12764
2e161f78 12765int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 12766 struct wireless_dev *wdev, u32 nlportid,
804483e9 12767 int freq, int sig_dbm,
19504cf5 12768 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 12769{
71bbc994 12770 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12771 struct sk_buff *msg;
12772 void *hdr;
026331c4
JM		 12773
12774 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12775 if (!msg)
12776 return -ENOMEM;
12777
2e161f78 12778 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 12779 if (!hdr) {
12780 nlmsg_free(msg);
12781 return -ENOMEM;
12782 }
12783
9360ffd1 12784 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12785 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12786 netdev->ifindex)) ||
2dad624e
ND		 12787 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12788 NL80211_ATTR_PAD) ||
9360ffd1
DM		 12789 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12790 (sig_dbm &&
12791 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 12792 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12793 (flags &&
12794 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 12795 goto nla_put_failure;
026331c4 12796
3b7b72ee 12797 genlmsg_end(msg, hdr);
026331c4 12798
15e47304 12799 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 12800
12801 nla_put_failure:
12802 genlmsg_cancel(msg, hdr);
12803 nlmsg_free(msg);
12804 return -ENOBUFS;
12805}
12806
947add36
JB		 12807void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12808 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 12809{
947add36 12810 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12811 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 12812 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12813 struct sk_buff *msg;
12814 void *hdr;
12815
947add36
JB		 12816 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12817
026331c4
JM		 12818 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12819 if (!msg)
12820 return;
12821
2e161f78 12822 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 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 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12830 netdev->ifindex)) ||
2dad624e
ND		 12831 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12832 NL80211_ATTR_PAD) ||
9360ffd1 12833 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
2dad624e
ND		 12834 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12835 NL80211_ATTR_PAD) ||
9360ffd1
DM		 12836 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12837 goto nla_put_failure;
026331c4 12838
3b7b72ee 12839 genlmsg_end(msg, hdr);
026331c4 12840
68eb5503 12841 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12842 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 12843 return;
12844
12845 nla_put_failure:
12846 genlmsg_cancel(msg, hdr);
12847 nlmsg_free(msg);
12848}
947add36 12849EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 12850
5b97f49d
JB		 12851static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12852 const char *mac, gfp_t gfp)
d6dc1a38 12853{
947add36 12854 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12855 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12856 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12857 void **cb;
947add36 12858
d6dc1a38 12859 if (!msg)
5b97f49d 12860 return NULL;
d6dc1a38 12861
5b97f49d
JB		 12862 cb = (void **)msg->cb;
12863
12864 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12865 if (!cb[0]) {
d6dc1a38 12866 nlmsg_free(msg);
5b97f49d 12867 return NULL;
d6dc1a38
JO		 12868 }
12869
9360ffd1 12870 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12871 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12872 goto nla_put_failure;
d6dc1a38 12873
5b97f49d 12874 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12875 goto nla_put_failure;
12876
5b97f49d
JB		 12877 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12878 if (!cb[1])
9360ffd1 12879 goto nla_put_failure;
d6dc1a38 12880
5b97f49d 12881 cb[2] = rdev;
d6dc1a38 12882
5b97f49d
JB		 12883 return msg;
12884 nla_put_failure:
12885 nlmsg_free(msg);
12886 return NULL;
12887}
12888
12889static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12890{
12891 void **cb = (void **)msg->cb;
12892 struct cfg80211_registered_device *rdev = cb[2];
12893
12894 nla_nest_end(msg, cb[1]);
12895 genlmsg_end(msg, cb[0]);
12896
12897 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 12898
68eb5503 12899 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12900 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 12901}
12902
12903void cfg80211_cqm_rssi_notify(struct net_device *dev,
12904 enum nl80211_cqm_rssi_threshold_event rssi_event,
12905 gfp_t gfp)
12906{
12907 struct sk_buff *msg;
12908
12909 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12910
98f03342
JB		 12911 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12912 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12913 return;
12914
5b97f49d
JB		 12915 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12916 if (!msg)
12917 return;
12918
12919 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12920 rssi_event))
12921 goto nla_put_failure;
12922
12923 cfg80211_send_cqm(msg, gfp);
12924
d6dc1a38
JO		 12925 return;
12926
12927 nla_put_failure:
d6dc1a38
JO		 12928 nlmsg_free(msg);
12929}
947add36 12930EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12931
5b97f49d
JB		 12932void cfg80211_cqm_txe_notify(struct net_device *dev,
12933 const u8 *peer, u32 num_packets,
12934 u32 rate, u32 intvl, gfp_t gfp)
12935{
12936 struct sk_buff *msg;
12937
12938 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12939 if (!msg)
12940 return;
12941
12942 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12943 goto nla_put_failure;
12944
12945 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12946 goto nla_put_failure;
12947
12948 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12949 goto nla_put_failure;
12950
12951 cfg80211_send_cqm(msg, gfp);
12952 return;
12953
12954 nla_put_failure:
12955 nlmsg_free(msg);
12956}
12957EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12958
12959void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12960 const u8 *peer, u32 num_packets, gfp_t gfp)
12961{
12962 struct sk_buff *msg;
12963
12964 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12965
12966 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12967 if (!msg)
12968 return;
12969
12970 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12971 goto nla_put_failure;
12972
12973 cfg80211_send_cqm(msg, gfp);
12974 return;
12975
12976 nla_put_failure:
12977 nlmsg_free(msg);
12978}
12979EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12980
98f03342
JB		 12981void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12982{
12983 struct sk_buff *msg;
12984
12985 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12986 if (!msg)
12987 return;
12988
12989 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12990 goto nla_put_failure;
12991
12992 cfg80211_send_cqm(msg, gfp);
12993 return;
12994
12995 nla_put_failure:
12996 nlmsg_free(msg);
12997}
12998EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12999
947add36
JB		 13000static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
13001 struct net_device *netdev, const u8 *bssid,
13002 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 13003{
13004 struct sk_buff *msg;
13005 struct nlattr *rekey_attr;
13006 void *hdr;
13007
58050fce 13008 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 13009 if (!msg)
13010 return;
13011
13012 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
13013 if (!hdr) {
13014 nlmsg_free(msg);
13015 return;
13016 }
13017
9360ffd1
DM		 13018 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13019 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13020 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13021 goto nla_put_failure;
e5497d76
JB		 13022
13023 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
13024 if (!rekey_attr)
13025 goto nla_put_failure;
13026
9360ffd1
DM		 13027 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
13028 NL80211_REPLAY_CTR_LEN, replay_ctr))
13029 goto nla_put_failure;
e5497d76
JB		 13030
13031 nla_nest_end(msg, rekey_attr);
13032
3b7b72ee 13033 genlmsg_end(msg, hdr);
e5497d76 13034
68eb5503 13035 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13036 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 13037 return;
13038
13039 nla_put_failure:
13040 genlmsg_cancel(msg, hdr);
13041 nlmsg_free(msg);
13042}
13043
947add36
JB		 13044void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
13045 const u8 *replay_ctr, gfp_t gfp)
13046{
13047 struct wireless_dev *wdev = dev->ieee80211_ptr;
13048 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13049 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13050
13051 trace_cfg80211_gtk_rekey_notify(dev, bssid);
13052 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
13053}
13054EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
13055
13056static void
13057nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
13058 struct net_device *netdev, int index,
13059 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 13060{
13061 struct sk_buff *msg;
13062 struct nlattr *attr;
13063 void *hdr;
13064
58050fce 13065 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 13066 if (!msg)
13067 return;
13068
13069 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
13070 if (!hdr) {
13071 nlmsg_free(msg);
13072 return;
13073 }
13074
9360ffd1
DM		 13075 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13076 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13077 goto nla_put_failure;
c9df56b4
JM		 13078
13079 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
13080 if (!attr)
13081 goto nla_put_failure;
13082
9360ffd1
DM		 13083 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
13084 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
13085 (preauth &&
13086 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
13087 goto nla_put_failure;
c9df56b4
JM		 13088
13089 nla_nest_end(msg, attr);
13090
3b7b72ee 13091 genlmsg_end(msg, hdr);
c9df56b4 13092
68eb5503 13093 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13094 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 13095 return;
13096
13097 nla_put_failure:
13098 genlmsg_cancel(msg, hdr);
13099 nlmsg_free(msg);
13100}
13101
947add36
JB		 13102void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
13103 const u8 *bssid, bool preauth, gfp_t gfp)
13104{
13105 struct wireless_dev *wdev = dev->ieee80211_ptr;
13106 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13107 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13108
13109 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
13110 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
13111}
13112EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
13113
13114static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
13115 struct net_device *netdev,
13116 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 13117 gfp_t gfp,
13118 enum nl80211_commands notif,
13119 u8 count)
5314526b
TP		 13120{
13121 struct sk_buff *msg;
13122 void *hdr;
13123
58050fce 13124 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 13125 if (!msg)
13126 return;
13127
f8d7552e 13128 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 13129 if (!hdr) {
13130 nlmsg_free(msg);
13131 return;
13132 }
13133
683b6d3b
JB		 13134 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13135 goto nla_put_failure;
13136
13137 if (nl80211_send_chandef(msg, chandef))
7eab0f64 13138 goto nla_put_failure;
5314526b 13139
f8d7552e
LC		 13140 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
13141 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
13142 goto nla_put_failure;
13143
5314526b
TP		 13144 genlmsg_end(msg, hdr);
13145
68eb5503 13146 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13147 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 13148 return;
13149
13150 nla_put_failure:
13151 genlmsg_cancel(msg, hdr);
13152 nlmsg_free(msg);
13153}
13154
947add36
JB		 13155void cfg80211_ch_switch_notify(struct net_device *dev,
13156 struct cfg80211_chan_def *chandef)
84f10708 13157{
947add36
JB		 13158 struct wireless_dev *wdev = dev->ieee80211_ptr;
13159 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13160 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 13161
e487eaeb 13162 ASSERT_WDEV_LOCK(wdev);
947add36 13163
e487eaeb 13164 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 13165
9e0e2961 13166 wdev->chandef = *chandef;
96f55f12 13167 wdev->preset_chandef = *chandef;
f8d7552e
LC		 13168 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13169 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 13170}
13171EXPORT_SYMBOL(cfg80211_ch_switch_notify);
13172
f8d7552e
LC		 13173void cfg80211_ch_switch_started_notify(struct net_device *dev,
13174 struct cfg80211_chan_def *chandef,
13175 u8 count)
13176{
13177 struct wireless_dev *wdev = dev->ieee80211_ptr;
13178 struct wiphy *wiphy = wdev->wiphy;
13179 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13180
13181 trace_cfg80211_ch_switch_started_notify(dev, chandef);
13182
13183 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13184 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
13185}
13186EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
13187
04f39047
SW		 13188void
13189nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 13190 const struct cfg80211_chan_def *chandef,
04f39047
SW		 13191 enum nl80211_radar_event event,
13192 struct net_device *netdev, gfp_t gfp)
13193{
13194 struct sk_buff *msg;
13195 void *hdr;
13196
13197 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13198 if (!msg)
13199 return;
13200
13201 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
13202 if (!hdr) {
13203 nlmsg_free(msg);
13204 return;
13205 }
13206
13207 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
13208 goto nla_put_failure;
13209
13210 /* NOP and radar events don't need a netdev parameter */
13211 if (netdev) {
13212 struct wireless_dev *wdev = netdev->ieee80211_ptr;
13213
13214 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
2dad624e
ND		 13215 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13216 NL80211_ATTR_PAD))
04f39047
SW		 13217 goto nla_put_failure;
13218 }
13219
13220 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
13221 goto nla_put_failure;
13222
13223 if (nl80211_send_chandef(msg, chandef))
13224 goto nla_put_failure;
13225
9c90a9f6 13226 genlmsg_end(msg, hdr);
04f39047 13227
68eb5503 13228 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13229 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 13230 return;
13231
13232 nla_put_failure:
13233 genlmsg_cancel(msg, hdr);
13234 nlmsg_free(msg);
13235}
13236
7f6cf311
JB		 13237void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
13238 u64 cookie, bool acked, gfp_t gfp)
13239{
13240 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13241 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 13242 struct sk_buff *msg;
13243 void *hdr;
7f6cf311 13244
4ee3e063
BL		 13245 trace_cfg80211_probe_status(dev, addr, cookie, acked);
13246
58050fce 13247 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 13248
7f6cf311
JB		 13249 if (!msg)
13250 return;
13251
13252 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
13253 if (!hdr) {
13254 nlmsg_free(msg);
13255 return;
13256 }
13257
9360ffd1
DM		 13258 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13259 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13260 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2dad624e
ND		 13261 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13262 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13263 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
13264 goto nla_put_failure;
7f6cf311 13265
9c90a9f6 13266 genlmsg_end(msg, hdr);
7f6cf311 13267
68eb5503 13268 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13269 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 13270 return;
13271
13272 nla_put_failure:
13273 genlmsg_cancel(msg, hdr);
13274 nlmsg_free(msg);
13275}
13276EXPORT_SYMBOL(cfg80211_probe_status);
13277
5e760230
JB		 13278void cfg80211_report_obss_beacon(struct wiphy *wiphy,
13279 const u8 *frame, size_t len,
37c73b5f 13280 int freq, int sig_dbm)
5e760230 13281{
f26cbf40 13282 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 13283 struct sk_buff *msg;
13284 void *hdr;
37c73b5f 13285 struct cfg80211_beacon_registration *reg;
5e760230 13286
4ee3e063
BL		 13287 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
13288
37c73b5f
BG		 13289 spin_lock_bh(&rdev->beacon_registrations_lock);
13290 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
13291 msg = nlmsg_new(len + 100, GFP_ATOMIC);
13292 if (!msg) {
13293 spin_unlock_bh(&rdev->beacon_registrations_lock);
13294 return;
13295 }
5e760230 13296
37c73b5f
BG		 13297 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
13298 if (!hdr)
13299 goto nla_put_failure;
5e760230 13300
37c73b5f
BG		 13301 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13302 (freq &&
13303 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
13304 (sig_dbm &&
13305 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
13306 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
13307 goto nla_put_failure;
5e760230 13308
37c73b5f 13309 genlmsg_end(msg, hdr);
5e760230 13310
37c73b5f
BG		 13311 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
13312 }
13313 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 13314 return;
13315
13316 nla_put_failure:
37c73b5f
BG		 13317 spin_unlock_bh(&rdev->beacon_registrations_lock);
13318 if (hdr)
13319 genlmsg_cancel(msg, hdr);
5e760230
JB		 13320 nlmsg_free(msg);
13321}
13322EXPORT_SYMBOL(cfg80211_report_obss_beacon);
13323
cd8f7cb4 13324#ifdef CONFIG_PM
8cd4d456
LC		 13325static int cfg80211_net_detect_results(struct sk_buff *msg,
13326 struct cfg80211_wowlan_wakeup *wakeup)
13327{
13328 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
13329 struct nlattr *nl_results, *nl_match, *nl_freqs;
13330 int i, j;
13331
13332 nl_results = nla_nest_start(
13333 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
13334 if (!nl_results)
13335 return -EMSGSIZE;
13336
13337 for (i = 0; i < nd->n_matches; i++) {
13338 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
13339
13340 nl_match = nla_nest_start(msg, i);
13341 if (!nl_match)
13342 break;
13343
13344 /* The SSID attribute is optional in nl80211, but for
13345 * simplicity reasons it's always present in the
13346 * cfg80211 structure. If a driver can't pass the
13347 * SSID, that needs to be changed. A zero length SSID
13348 * is still a valid SSID (wildcard), so it cannot be
13349 * used for this purpose.
13350 */
13351 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
13352 match->ssid.ssid)) {
13353 nla_nest_cancel(msg, nl_match);
13354 goto out;
13355 }
13356
13357 if (match->n_channels) {
13358 nl_freqs = nla_nest_start(
13359 msg, NL80211_ATTR_SCAN_FREQUENCIES);
13360 if (!nl_freqs) {
13361 nla_nest_cancel(msg, nl_match);
13362 goto out;
13363 }
13364
13365 for (j = 0; j < match->n_channels; j++) {
5528fae8 13366 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 13367 nla_nest_cancel(msg, nl_freqs);
13368 nla_nest_cancel(msg, nl_match);
13369 goto out;
13370 }
13371 }
13372
13373 nla_nest_end(msg, nl_freqs);
13374 }
13375
13376 nla_nest_end(msg, nl_match);
13377 }
13378
13379out:
13380 nla_nest_end(msg, nl_results);
13381 return 0;
13382}
13383
cd8f7cb4
JB		 13384void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
13385 struct cfg80211_wowlan_wakeup *wakeup,
13386 gfp_t gfp)
13387{
f26cbf40 13388 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 13389 struct sk_buff *msg;
13390 void *hdr;
9c90a9f6 13391 int size = 200;
cd8f7cb4
JB		 13392
13393 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13394
13395 if (wakeup)
13396 size += wakeup->packet_present_len;
13397
13398 msg = nlmsg_new(size, gfp);
13399 if (!msg)
13400 return;
13401
13402 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13403 if (!hdr)
13404 goto free_msg;
13405
13406 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 13407 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13408 NL80211_ATTR_PAD))
cd8f7cb4
JB		 13409 goto free_msg;
13410
13411 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13412 wdev->netdev->ifindex))
13413 goto free_msg;
13414
13415 if (wakeup) {
13416 struct nlattr *reasons;
13417
13418 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 13419 if (!reasons)
13420 goto free_msg;
cd8f7cb4
JB		 13421
13422 if (wakeup->disconnect &&
13423 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13424 goto free_msg;
13425 if (wakeup->magic_pkt &&
13426 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13427 goto free_msg;
13428 if (wakeup->gtk_rekey_failure &&
13429 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13430 goto free_msg;
13431 if (wakeup->eap_identity_req &&
13432 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13433 goto free_msg;
13434 if (wakeup->four_way_handshake &&
13435 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13436 goto free_msg;
13437 if (wakeup->rfkill_release &&
13438 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13439 goto free_msg;
13440
13441 if (wakeup->pattern_idx >= 0 &&
13442 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13443 wakeup->pattern_idx))
13444 goto free_msg;
13445
ae917c9f
JB		 13446 if (wakeup->tcp_match &&
13447 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13448 goto free_msg;
2a0e047e 13449
ae917c9f
JB		 13450 if (wakeup->tcp_connlost &&
13451 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13452 goto free_msg;
2a0e047e 13453
ae917c9f
JB		 13454 if (wakeup->tcp_nomoretokens &&
13455 nla_put_flag(msg,
13456 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13457 goto free_msg;
2a0e047e 13458
cd8f7cb4
JB		 13459 if (wakeup->packet) {
13460 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13461 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13462
13463 if (!wakeup->packet_80211) {
13464 pkt_attr =
13465 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13466 len_attr =
13467 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13468 }
13469
13470 if (wakeup->packet_len &&
13471 nla_put_u32(msg, len_attr, wakeup->packet_len))
13472 goto free_msg;
13473
13474 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13475 wakeup->packet))
13476 goto free_msg;
13477 }
13478
8cd4d456
LC		 13479 if (wakeup->net_detect &&
13480 cfg80211_net_detect_results(msg, wakeup))
13481 goto free_msg;
13482
cd8f7cb4
JB		 13483 nla_nest_end(msg, reasons);
13484 }
13485
9c90a9f6 13486 genlmsg_end(msg, hdr);
cd8f7cb4 13487
68eb5503 13488 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13489 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 13490 return;
13491
13492 free_msg:
13493 nlmsg_free(msg);
13494}
13495EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13496#endif
13497
3475b094
JM		 13498void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13499 enum nl80211_tdls_operation oper,
13500 u16 reason_code, gfp_t gfp)
13501{
13502 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13503 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 13504 struct sk_buff *msg;
13505 void *hdr;
3475b094
JM		 13506
13507 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13508 reason_code);
13509
13510 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13511 if (!msg)
13512 return;
13513
13514 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13515 if (!hdr) {
13516 nlmsg_free(msg);
13517 return;
13518 }
13519
13520 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13521 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13522 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13523 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13524 (reason_code > 0 &&
13525 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13526 goto nla_put_failure;
13527
9c90a9f6 13528 genlmsg_end(msg, hdr);
3475b094 13529
68eb5503 13530 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13531 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 13532 return;
13533
13534 nla_put_failure:
13535 genlmsg_cancel(msg, hdr);
13536 nlmsg_free(msg);
13537}
13538EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13539
026331c4
JM		 13540static int nl80211_netlink_notify(struct notifier_block * nb,
13541 unsigned long state,
13542 void *_notify)
13543{
13544 struct netlink_notify *notify = _notify;
13545 struct cfg80211_registered_device *rdev;
13546 struct wireless_dev *wdev;
37c73b5f 13547 struct cfg80211_beacon_registration *reg, *tmp;
026331c4 13548
8f815cdd 13549 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
026331c4
JM		 13550 return NOTIFY_DONE;
13551
13552 rcu_read_lock();
13553
5e760230 13554 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 13555 bool schedule_destroy_work = false;
93a1e86c
JR		 13556 bool schedule_scan_stop = false;
13557 struct cfg80211_sched_scan_request *sched_scan_req =
13558 rcu_dereference(rdev->sched_scan_req);
13559
13560 if (sched_scan_req && notify->portid &&
13561 sched_scan_req->owner_nlportid == notify->portid)
13562 schedule_scan_stop = true;
78f22b6a 13563
53873f13 13564 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15e47304 13565 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 13566
78f22b6a
JB		 13567 if (wdev->owner_nlportid == notify->portid)
13568 schedule_destroy_work = true;
13569 }
13570
37c73b5f
BG		 13571 spin_lock_bh(&rdev->beacon_registrations_lock);
13572 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13573 list) {
13574 if (reg->nlportid == notify->portid) {
13575 list_del(&reg->list);
13576 kfree(reg);
13577 break;
13578 }
13579 }
13580 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 13581
13582 if (schedule_destroy_work) {
13583 struct cfg80211_iface_destroy *destroy;
13584
13585 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13586 if (destroy) {
13587 destroy->nlportid = notify->portid;
13588 spin_lock(&rdev->destroy_list_lock);
13589 list_add(&destroy->list, &rdev->destroy_list);
13590 spin_unlock(&rdev->destroy_list_lock);
13591 schedule_work(&rdev->destroy_work);
13592 }
93a1e86c
JR		 13593 } else if (schedule_scan_stop) {
13594 sched_scan_req->owner_nlportid = 0;
13595
13596 if (rdev->ops->sched_scan_stop &&
13597 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13598 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 13599 }
5e760230 13600 }
026331c4
JM		 13601
13602 rcu_read_unlock();
13603
05050753
I		 13604 /*
13605 * It is possible that the user space process that is controlling the
13606 * indoor setting disappeared, so notify the regulatory core.
13607 */
13608 regulatory_netlink_notify(notify->portid);
6784c7db 13609 return NOTIFY_OK;
026331c4
JM		 13610}
13611
13612static struct notifier_block nl80211_netlink_notifier = {
13613 .notifier_call = nl80211_netlink_notify,
13614};
13615
355199e0
JM		 13616void cfg80211_ft_event(struct net_device *netdev,
13617 struct cfg80211_ft_event_params *ft_event)
13618{
13619 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 13620 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 13621 struct sk_buff *msg;
13622 void *hdr;
355199e0
JM		 13623
13624 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13625
13626 if (!ft_event->target_ap)
13627 return;
13628
13629 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13630 if (!msg)
13631 return;
13632
13633 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 13634 if (!hdr)
13635 goto out;
355199e0 13636
ae917c9f
JB		 13637 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13638 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13639 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13640 goto out;
355199e0 13641
ae917c9f
JB		 13642 if (ft_event->ies &&
13643 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13644 goto out;
13645 if (ft_event->ric_ies &&
13646 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13647 ft_event->ric_ies))
13648 goto out;
355199e0 13649
9c90a9f6 13650 genlmsg_end(msg, hdr);
355199e0 13651
68eb5503 13652 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13653 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 13654 return;
13655 out:
13656 nlmsg_free(msg);
355199e0
JM		 13657}
13658EXPORT_SYMBOL(cfg80211_ft_event);
13659
5de17984
AS		 13660void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13661{
13662 struct cfg80211_registered_device *rdev;
13663 struct sk_buff *msg;
13664 void *hdr;
13665 u32 nlportid;
13666
f26cbf40 13667 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 13668 if (!rdev->crit_proto_nlportid)
13669 return;
13670
13671 nlportid = rdev->crit_proto_nlportid;
13672 rdev->crit_proto_nlportid = 0;
13673
13674 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13675 if (!msg)
13676 return;
13677
13678 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13679 if (!hdr)
13680 goto nla_put_failure;
13681
13682 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 13683 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13684 NL80211_ATTR_PAD))
5de17984
AS		 13685 goto nla_put_failure;
13686
13687 genlmsg_end(msg, hdr);
13688
13689 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13690 return;
13691
13692 nla_put_failure:
13693 if (hdr)
13694 genlmsg_cancel(msg, hdr);
13695 nlmsg_free(msg);
5de17984
AS		 13696}
13697EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13698
348baf0e
JB		 13699void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13700{
13701 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13702 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 13703 struct sk_buff *msg;
13704 void *hdr;
13705
13706 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13707 if (!msg)
13708 return;
13709
13710 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13711 if (!hdr)
13712 goto out;
13713
13714 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13715 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
2dad624e
ND		 13716 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13717 NL80211_ATTR_PAD))
348baf0e
JB		 13718 goto out;
13719
13720 genlmsg_end(msg, hdr);
13721
13722 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13723 NL80211_MCGRP_MLME, GFP_KERNEL);
13724 return;
13725 out:
13726 nlmsg_free(msg);
13727}
13728
55682965
JB		 13729/* initialisation/exit functions */
13730
13731int nl80211_init(void)
13732{
0d63cbb5 13733 int err;
55682965 13734
2a94fe48
JB		 13735 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13736 nl80211_mcgrps);
55682965
JB		 13737 if (err)
13738 return err;
13739
026331c4
JM		 13740 err = netlink_register_notifier(&nl80211_netlink_notifier);
13741 if (err)
13742 goto err_out;
13743
55682965
JB		 13744 return 0;
13745 err_out:
13746 genl_unregister_family(&nl80211_fam);
13747 return err;
13748}
13749
13750void nl80211_exit(void)
13751{
026331c4 13752 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 13753 genl_unregister_family(&nl80211_fam);
13754}
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