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cfg80211: Add support for static WEP in the driver
[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;
f1c1f17a
JB		 851 bool have_key = false;
852
853 nla_for_each_nested(key, keys, rem) {
854 have_key = true;
855 break;
856 }
857
858 if (!have_key)
859 return NULL;
fffd0934
JB		 860
861 result = kzalloc(sizeof(*result), GFP_KERNEL);
862 if (!result)
863 return ERR_PTR(-ENOMEM);
864
865 result->def = -1;
fffd0934
JB		 866
867 nla_for_each_nested(key, keys, rem) {
868 memset(&parse, 0, sizeof(parse));
869 parse.idx = -1;
870
871 err = nl80211_parse_key_new(key, &parse);
872 if (err)
873 goto error;
874 err = -EINVAL;
875 if (!parse.p.key)
876 goto error;
42ee231c 877 if (parse.idx < 0 || parse.idx > 3)
fffd0934
JB		 878 goto error;
879 if (parse.def) {
880 if (def)
881 goto error;
882 def = 1;
883 result->def = parse.idx;
dbd2fd65
JB		 884 if (!parse.def_uni || !parse.def_multi)
885 goto error;
fffd0934
JB		 886 } else if (parse.defmgmt)
887 goto error;
888 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 889 parse.idx, false, NULL);
fffd0934
JB		 890 if (err)
891 goto error;
386b1f27
JB		 892 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
893 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
894 err = -EINVAL;
895 goto error;
896 }
fffd0934
JB		 897 result->params[parse.idx].cipher = parse.p.cipher;
898 result->params[parse.idx].key_len = parse.p.key_len;
899 result->params[parse.idx].key = result->data[parse.idx];
900 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee 901
386b1f27
JB		 902 /* must be WEP key if we got here */
903 if (no_ht)
904 *no_ht = true;
fffd0934
JB		 905 }
906
f1c1f17a
JB		 907 if (result->def < 0) {
908 err = -EINVAL;
909 goto error;
910 }
911
fffd0934
JB		 912 return result;
913 error:
914 kfree(result);
915 return ERR_PTR(err);
916}
917
918static int nl80211_key_allowed(struct wireless_dev *wdev)
919{
920 ASSERT_WDEV_LOCK(wdev);
921
fffd0934
JB		 922 switch (wdev->iftype) {
923 case NL80211_IFTYPE_AP:
924 case NL80211_IFTYPE_AP_VLAN:
074ac8df 925 case NL80211_IFTYPE_P2P_GO:
ff973af7 926 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 927 break;
928 case NL80211_IFTYPE_ADHOC:
fffd0934 929 case NL80211_IFTYPE_STATION:
074ac8df 930 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 931 if (!wdev->current_bss)
fffd0934
JB		 932 return -ENOLINK;
933 break;
de4fcbad 934 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 935 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 936 case NL80211_IFTYPE_MONITOR:
937 case NL80211_IFTYPE_P2P_DEVICE:
938 case NL80211_IFTYPE_WDS:
939 case NUM_NL80211_IFTYPES:
fffd0934
JB		 940 return -EINVAL;
941 }
942
943 return 0;
944}
945
664834de
JM		 946static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
947 struct nlattr *tb)
948{
949 struct ieee80211_channel *chan;
950
951 if (tb == NULL)
952 return NULL;
953 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
954 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
955 return NULL;
956 return chan;
957}
958
7527a782
JB		 959static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
960{
961 struct nlattr *nl_modes = nla_nest_start(msg, attr);
962 int i;
963
964 if (!nl_modes)
965 goto nla_put_failure;
966
967 i = 0;
968 while (ifmodes) {
9360ffd1
DM		 969 if ((ifmodes & 1) && nla_put_flag(msg, i))
970 goto nla_put_failure;
7527a782
JB		 971 ifmodes >>= 1;
972 i++;
973 }
974
975 nla_nest_end(msg, nl_modes);
976 return 0;
977
978nla_put_failure:
979 return -ENOBUFS;
980}
981
982static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 983 struct sk_buff *msg,
984 bool large)
7527a782
JB		 985{
986 struct nlattr *nl_combis;
987 int i, j;
988
989 nl_combis = nla_nest_start(msg,
990 NL80211_ATTR_INTERFACE_COMBINATIONS);
991 if (!nl_combis)
992 goto nla_put_failure;
993
994 for (i = 0; i < wiphy->n_iface_combinations; i++) {
995 const struct ieee80211_iface_combination *c;
996 struct nlattr *nl_combi, *nl_limits;
997
998 c = &wiphy->iface_combinations[i];
999
1000 nl_combi = nla_nest_start(msg, i + 1);
1001 if (!nl_combi)
1002 goto nla_put_failure;
1003
1004 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1005 if (!nl_limits)
1006 goto nla_put_failure;
1007
1008 for (j = 0; j < c->n_limits; j++) {
1009 struct nlattr *nl_limit;
1010
1011 nl_limit = nla_nest_start(msg, j + 1);
1012 if (!nl_limit)
1013 goto nla_put_failure;
9360ffd1
DM		 1014 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1015 c->limits[j].max))
1016 goto nla_put_failure;
7527a782
JB		 1017 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1018 c->limits[j].types))
1019 goto nla_put_failure;
1020 nla_nest_end(msg, nl_limit);
1021 }
1022
1023 nla_nest_end(msg, nl_limits);
1024
9360ffd1
DM		 1025 if (c->beacon_int_infra_match &&
1026 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1027 goto nla_put_failure;
1028 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1029 c->num_different_channels) ||
1030 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1031 c->max_interfaces))
1032 goto nla_put_failure;
cdc89b97 1033 if (large &&
8c48b50a
FF		 1034 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1035 c->radar_detect_widths) ||
1036 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1037 c->radar_detect_regions)))
cdc89b97 1038 goto nla_put_failure;
7527a782
JB		 1039
1040 nla_nest_end(msg, nl_combi);
1041 }
1042
1043 nla_nest_end(msg, nl_combis);
1044
1045 return 0;
1046nla_put_failure:
1047 return -ENOBUFS;
1048}
1049
3713b4e3 1050#ifdef CONFIG_PM
b56cf720
JB		 1051static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1052 struct sk_buff *msg)
1053{
964dc9e2 1054 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1055 struct nlattr *nl_tcp;
1056
1057 if (!tcp)
1058 return 0;
1059
1060 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1061 if (!nl_tcp)
1062 return -ENOBUFS;
1063
1064 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1065 tcp->data_payload_max))
1066 return -ENOBUFS;
1067
1068 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1069 tcp->data_payload_max))
1070 return -ENOBUFS;
1071
1072 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1073 return -ENOBUFS;
1074
1075 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1076 sizeof(*tcp->tok), tcp->tok))
1077 return -ENOBUFS;
1078
1079 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1080 tcp->data_interval_max))
1081 return -ENOBUFS;
1082
1083 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1084 tcp->wake_payload_max))
1085 return -ENOBUFS;
1086
1087 nla_nest_end(msg, nl_tcp);
1088 return 0;
1089}
1090
3713b4e3 1091static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1092 struct cfg80211_registered_device *rdev,
b56cf720 1093 bool large)
55682965 1094{
3713b4e3 1095 struct nlattr *nl_wowlan;
55682965 1096
1b8ec87a 1097 if (!rdev->wiphy.wowlan)
3713b4e3 1098 return 0;
55682965 1099
3713b4e3
JB		 1100 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1101 if (!nl_wowlan)
1102 return -ENOBUFS;
9360ffd1 1103
1b8ec87a 1104 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1105 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1106 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1107 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1108 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1109 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1110 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1111 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1112 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1113 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1114 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1115 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1116 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1117 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1118 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1119 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1120 return -ENOBUFS;
9360ffd1 1121
1b8ec87a 1122 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1123 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1124 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1125 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1126 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1127 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1128 };
9360ffd1 1129
3713b4e3
JB		 1130 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1131 sizeof(pat), &pat))
1132 return -ENOBUFS;
1133 }
9360ffd1 1134
75453ccb
LC		 1135 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1136 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1137 rdev->wiphy.wowlan->max_nd_match_sets))
1138 return -ENOBUFS;
1139
1b8ec87a 1140 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1141 return -ENOBUFS;
1142
3713b4e3 1143 nla_nest_end(msg, nl_wowlan);
9360ffd1 1144
3713b4e3
JB		 1145 return 0;
1146}
1147#endif
9360ffd1 1148
be29b99a 1149static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1150 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1151{
1152 struct nl80211_coalesce_rule_support rule;
1153
1b8ec87a 1154 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1155 return 0;
1156
1b8ec87a
ZG		 1157 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1158 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1159 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1160 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1161 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1162 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1163
1164 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1165 return -ENOBUFS;
1166
1167 return 0;
1168}
1169
3713b4e3
JB		 1170static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1171 struct ieee80211_supported_band *sband)
1172{
1173 struct nlattr *nl_rates, *nl_rate;
1174 struct ieee80211_rate *rate;
1175 int i;
87bbbe22 1176
3713b4e3
JB		 1177 /* add HT info */
1178 if (sband->ht_cap.ht_supported &&
1179 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1180 sizeof(sband->ht_cap.mcs),
1181 &sband->ht_cap.mcs) ||
1182 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1183 sband->ht_cap.cap) ||
1184 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1185 sband->ht_cap.ampdu_factor) ||
1186 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1187 sband->ht_cap.ampdu_density)))
1188 return -ENOBUFS;
afe0cbf8 1189
3713b4e3
JB		 1190 /* add VHT info */
1191 if (sband->vht_cap.vht_supported &&
1192 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1193 sizeof(sband->vht_cap.vht_mcs),
1194 &sband->vht_cap.vht_mcs) ||
1195 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1196 sband->vht_cap.cap)))
1197 return -ENOBUFS;
f59ac048 1198
3713b4e3
JB		 1199 /* add bitrates */
1200 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1201 if (!nl_rates)
1202 return -ENOBUFS;
ee688b00 1203
3713b4e3
JB		 1204 for (i = 0; i < sband->n_bitrates; i++) {
1205 nl_rate = nla_nest_start(msg, i);
1206 if (!nl_rate)
1207 return -ENOBUFS;
ee688b00 1208
3713b4e3
JB		 1209 rate = &sband->bitrates[i];
1210 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1211 rate->bitrate))
1212 return -ENOBUFS;
1213 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1214 nla_put_flag(msg,
1215 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1216 return -ENOBUFS;
ee688b00 1217
3713b4e3
JB		 1218 nla_nest_end(msg, nl_rate);
1219 }
d51626df 1220
3713b4e3 1221 nla_nest_end(msg, nl_rates);
bf0c111e 1222
3713b4e3
JB		 1223 return 0;
1224}
ee688b00 1225
3713b4e3
JB		 1226static int
1227nl80211_send_mgmt_stypes(struct sk_buff *msg,
1228 const struct ieee80211_txrx_stypes *mgmt_stypes)
1229{
1230 u16 stypes;
1231 struct nlattr *nl_ftypes, *nl_ifs;
1232 enum nl80211_iftype ift;
1233 int i;
ee688b00 1234
3713b4e3
JB		 1235 if (!mgmt_stypes)
1236 return 0;
5dab3b8a 1237
3713b4e3
JB		 1238 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1239 if (!nl_ifs)
1240 return -ENOBUFS;
e2f367f2 1241
3713b4e3
JB		 1242 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1243 nl_ftypes = nla_nest_start(msg, ift);
1244 if (!nl_ftypes)
1245 return -ENOBUFS;
1246 i = 0;
1247 stypes = mgmt_stypes[ift].tx;
1248 while (stypes) {
1249 if ((stypes & 1) &&
1250 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1251 (i << 4) | IEEE80211_FTYPE_MGMT))
1252 return -ENOBUFS;
1253 stypes >>= 1;
1254 i++;
ee688b00 1255 }
3713b4e3
JB		 1256 nla_nest_end(msg, nl_ftypes);
1257 }
ee688b00 1258
3713b4e3 1259 nla_nest_end(msg, nl_ifs);
ee688b00 1260
3713b4e3
JB		 1261 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1262 if (!nl_ifs)
1263 return -ENOBUFS;
ee688b00 1264
3713b4e3
JB		 1265 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1266 nl_ftypes = nla_nest_start(msg, ift);
1267 if (!nl_ftypes)
1268 return -ENOBUFS;
1269 i = 0;
1270 stypes = mgmt_stypes[ift].rx;
1271 while (stypes) {
1272 if ((stypes & 1) &&
1273 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1274 (i << 4) | IEEE80211_FTYPE_MGMT))
1275 return -ENOBUFS;
1276 stypes >>= 1;
1277 i++;
1278 }
1279 nla_nest_end(msg, nl_ftypes);
1280 }
1281 nla_nest_end(msg, nl_ifs);
ee688b00 1282
3713b4e3
JB		 1283 return 0;
1284}
ee688b00 1285
86e8cf98
JB		 1286struct nl80211_dump_wiphy_state {
1287 s64 filter_wiphy;
1288 long start;
019ae3a9 1289 long split_start, band_start, chan_start, capa_start;
86e8cf98
JB		 1290 bool split;
1291};
1292
1b8ec87a 1293static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1294 enum nl80211_commands cmd,
3713b4e3 1295 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1296 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1297{
1298 void *hdr;
1299 struct nlattr *nl_bands, *nl_band;
1300 struct nlattr *nl_freqs, *nl_freq;
1301 struct nlattr *nl_cmds;
57fbcce3 1302 enum nl80211_band band;
3713b4e3
JB		 1303 struct ieee80211_channel *chan;
1304 int i;
1305 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1306 rdev->wiphy.mgmt_stypes;
fe1abafd 1307 u32 features;
ee688b00 1308
3bb20556 1309 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1310 if (!hdr)
1311 return -ENOBUFS;
ee688b00 1312
86e8cf98
JB		 1313 if (WARN_ON(!state))
1314 return -EINVAL;
ee688b00 1315
1b8ec87a 1316 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1317 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1318 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1319 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1320 cfg80211_rdev_list_generation))
8fdc621d
JB		 1321 goto nla_put_failure;
1322
3bb20556
JB		 1323 if (cmd != NL80211_CMD_NEW_WIPHY)
1324 goto finish;
1325
86e8cf98 1326 switch (state->split_start) {
3713b4e3
JB		 1327 case 0:
1328 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1329 rdev->wiphy.retry_short) ||
3713b4e3 1330 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1331 rdev->wiphy.retry_long) ||
3713b4e3 1332 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1333 rdev->wiphy.frag_threshold) ||
3713b4e3 1334 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1335 rdev->wiphy.rts_threshold) ||
3713b4e3 1336 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1337 rdev->wiphy.coverage_class) ||
3713b4e3 1338 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1339 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1340 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1341 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1342 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1343 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1344 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1345 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1346 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1347 rdev->wiphy.max_match_sets) ||
1348 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1349 rdev->wiphy.max_sched_scan_plans) ||
1350 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1351 rdev->wiphy.max_sched_scan_plan_interval) ||
1352 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1353 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1354 goto nla_put_failure;
3713b4e3 1355
1b8ec87a 1356 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1357 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1358 goto nla_put_failure;
1b8ec87a 1359 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1360 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1361 goto nla_put_failure;
1b8ec87a 1362 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1363 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1364 goto nla_put_failure;
1b8ec87a 1365 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1366 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1367 goto nla_put_failure;
1b8ec87a 1368 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1369 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1370 goto nla_put_failure;
1b8ec87a 1371 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1372 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1373 goto nla_put_failure;
86e8cf98
JB		 1374 state->split_start++;
1375 if (state->split)
3713b4e3
JB		 1376 break;
1377 case 1:
1378 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1379 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1380 rdev->wiphy.cipher_suites))
3713b4e3 1381 goto nla_put_failure;
4745fc09 1382
3713b4e3 1383 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1384 rdev->wiphy.max_num_pmkids))
3713b4e3 1385 goto nla_put_failure;
b23aa676 1386
1b8ec87a 1387 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1388 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1389 goto nla_put_failure;
b23aa676 1390
3713b4e3 1391 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1392 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1393 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1394 rdev->wiphy.available_antennas_rx))
9360ffd1 1395 goto nla_put_failure;
b23aa676 1396
1b8ec87a 1397 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1398 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1399 rdev->wiphy.probe_resp_offload))
3713b4e3 1400 goto nla_put_failure;
8fdc621d 1401
1b8ec87a
ZG		 1402 if ((rdev->wiphy.available_antennas_tx ||
1403 rdev->wiphy.available_antennas_rx) &&
1404 rdev->ops->get_antenna) {
3713b4e3
JB		 1405 u32 tx_ant = 0, rx_ant = 0;
1406 int res;
7a087e74 1407
1b8ec87a 1408 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1409 if (!res) {
1410 if (nla_put_u32(msg,
1411 NL80211_ATTR_WIPHY_ANTENNA_TX,
1412 tx_ant) ||
1413 nla_put_u32(msg,
1414 NL80211_ATTR_WIPHY_ANTENNA_RX,
1415 rx_ant))
1416 goto nla_put_failure;
1417 }
1418 }
a293911d 1419
86e8cf98
JB		 1420 state->split_start++;
1421 if (state->split)
3713b4e3
JB		 1422 break;
1423 case 2:
1424 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1425 rdev->wiphy.interface_modes))
3713b4e3 1426 goto nla_put_failure;
86e8cf98
JB		 1427 state->split_start++;
1428 if (state->split)
3713b4e3
JB		 1429 break;
1430 case 3:
1431 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1432 if (!nl_bands)
1433 goto nla_put_failure;
f7ca38df 1434
86e8cf98 1435 for (band = state->band_start;
57fbcce3 1436 band < NUM_NL80211_BANDS; band++) {
3713b4e3 1437 struct ieee80211_supported_band *sband;
2e161f78 1438
1b8ec87a 1439 sband = rdev->wiphy.bands[band];
2e161f78 1440
3713b4e3
JB		 1441 if (!sband)
1442 continue;
1443
1444 nl_band = nla_nest_start(msg, band);
1445 if (!nl_band)
2e161f78 1446 goto nla_put_failure;
3713b4e3 1447
86e8cf98 1448 switch (state->chan_start) {
3713b4e3
JB		 1449 case 0:
1450 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1451 goto nla_put_failure;
86e8cf98
JB		 1452 state->chan_start++;
1453 if (state->split)
3713b4e3
JB		 1454 break;
1455 default:
1456 /* add frequencies */
1457 nl_freqs = nla_nest_start(
1458 msg, NL80211_BAND_ATTR_FREQS);
1459 if (!nl_freqs)
1460 goto nla_put_failure;
1461
86e8cf98 1462 for (i = state->chan_start - 1;
3713b4e3
JB		 1463 i < sband->n_channels;
1464 i++) {
1465 nl_freq = nla_nest_start(msg, i);
1466 if (!nl_freq)
1467 goto nla_put_failure;
1468
1469 chan = &sband->channels[i];
1470
86e8cf98
JB		 1471 if (nl80211_msg_put_channel(
1472 msg, chan,
1473 state->split))
3713b4e3
JB		 1474 goto nla_put_failure;
1475
1476 nla_nest_end(msg, nl_freq);
86e8cf98 1477 if (state->split)
3713b4e3
JB		 1478 break;
1479 }
1480 if (i < sband->n_channels)
86e8cf98 1481 state->chan_start = i + 2;
3713b4e3 1482 else
86e8cf98 1483 state->chan_start = 0;
3713b4e3
JB		 1484 nla_nest_end(msg, nl_freqs);
1485 }
1486
1487 nla_nest_end(msg, nl_band);
1488
86e8cf98 1489 if (state->split) {
3713b4e3 1490 /* start again here */
86e8cf98 1491 if (state->chan_start)
3713b4e3
JB		 1492 band--;
1493 break;
2e161f78 1494 }
2e161f78 1495 }
3713b4e3 1496 nla_nest_end(msg, nl_bands);
2e161f78 1497
57fbcce3 1498 if (band < NUM_NL80211_BANDS)
86e8cf98 1499 state->band_start = band + 1;
3713b4e3 1500 else
86e8cf98 1501 state->band_start = 0;
74b70a4e 1502
3713b4e3 1503 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1504 if (state->band_start == 0 && state->chan_start == 0)
1505 state->split_start++;
1506 if (state->split)
3713b4e3
JB		 1507 break;
1508 case 4:
1509 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1510 if (!nl_cmds)
2e161f78
JB		 1511 goto nla_put_failure;
1512
3713b4e3
JB		 1513 i = 0;
1514#define CMD(op, n) \
1515 do { \
1b8ec87a 1516 if (rdev->ops->op) { \
3713b4e3
JB		 1517 i++; \
1518 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1519 goto nla_put_failure; \
1520 } \
1521 } while (0)
1522
1523 CMD(add_virtual_intf, NEW_INTERFACE);
1524 CMD(change_virtual_intf, SET_INTERFACE);
1525 CMD(add_key, NEW_KEY);
1526 CMD(start_ap, START_AP);
1527 CMD(add_station, NEW_STATION);
1528 CMD(add_mpath, NEW_MPATH);
1529 CMD(update_mesh_config, SET_MESH_CONFIG);
1530 CMD(change_bss, SET_BSS);
1531 CMD(auth, AUTHENTICATE);
1532 CMD(assoc, ASSOCIATE);
1533 CMD(deauth, DEAUTHENTICATE);
1534 CMD(disassoc, DISASSOCIATE);
1535 CMD(join_ibss, JOIN_IBSS);
1536 CMD(join_mesh, JOIN_MESH);
1537 CMD(set_pmksa, SET_PMKSA);
1538 CMD(del_pmksa, DEL_PMKSA);
1539 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1540 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1541 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1542 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1543 CMD(mgmt_tx, FRAME);
1544 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1545 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1546 i++;
1547 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1548 goto nla_put_failure;
2e161f78 1549 }
1b8ec87a
ZG		 1550 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1551 rdev->ops->join_mesh) {
3713b4e3
JB		 1552 i++;
1553 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1554 goto nla_put_failure;
1555 }
1556 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1557 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1558 CMD(tdls_mgmt, TDLS_MGMT);
1559 CMD(tdls_oper, TDLS_OPER);
1560 }
1b8ec87a 1561 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1562 CMD(sched_scan_start, START_SCHED_SCAN);
1563 CMD(probe_client, PROBE_CLIENT);
1564 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1565 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1566 i++;
1567 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1568 goto nla_put_failure;
1569 }
1570 CMD(start_p2p_device, START_P2P_DEVICE);
1571 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1572#ifdef CONFIG_NL80211_TESTMODE
1573 CMD(testmode_cmd, TESTMODE);
1574#endif
86e8cf98 1575 if (state->split) {
5de17984
AS		 1576 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1577 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1578 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1579 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1580 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1581 if (rdev->wiphy.features &
1582 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1583 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1584 }
02df00eb 1585 /* add into the if now */
3713b4e3 1586#undef CMD
ff1b6e69 1587
1b8ec87a 1588 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1589 i++;
1590 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1591 goto nla_put_failure;
ff1b6e69
JB		 1592 }
1593
1b8ec87a 1594 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1595 i++;
1596 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1597 goto nla_put_failure;
1598 }
1599
1600 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1601 state->split_start++;
1602 if (state->split)
3713b4e3
JB		 1603 break;
1604 case 5:
1b8ec87a
ZG		 1605 if (rdev->ops->remain_on_channel &&
1606 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1607 nla_put_u32(msg,
1608 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1609 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1610 goto nla_put_failure;
1611
1b8ec87a 1612 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1613 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1614 goto nla_put_failure;
1615
1616 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1617 goto nla_put_failure;
86e8cf98
JB		 1618 state->split_start++;
1619 if (state->split)
3713b4e3
JB		 1620 break;
1621 case 6:
1622#ifdef CONFIG_PM
1b8ec87a 1623 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1624 goto nla_put_failure;
86e8cf98
JB		 1625 state->split_start++;
1626 if (state->split)
3713b4e3
JB		 1627 break;
1628#else
86e8cf98 1629 state->split_start++;
dfb89c56 1630#endif
3713b4e3
JB		 1631 case 7:
1632 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1633 rdev->wiphy.software_iftypes))
3713b4e3 1634 goto nla_put_failure;
ff1b6e69 1635
1b8ec87a 1636 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1637 state->split))
3713b4e3 1638 goto nla_put_failure;
7527a782 1639
86e8cf98
JB		 1640 state->split_start++;
1641 if (state->split)
3713b4e3
JB		 1642 break;
1643 case 8:
1b8ec87a 1644 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1645 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1646 rdev->wiphy.ap_sme_capa))
3713b4e3 1647 goto nla_put_failure;
7527a782 1648
1b8ec87a 1649 features = rdev->wiphy.features;
fe1abafd
JB		 1650 /*
1651 * We can only add the per-channel limit information if the
1652 * dump is split, otherwise it makes it too big. Therefore
1653 * only advertise it in that case.
1654 */
86e8cf98 1655 if (state->split)
fe1abafd
JB		 1656 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1657 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1658 goto nla_put_failure;
562a7480 1659
1b8ec87a 1660 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1661 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1662 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1663 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1664 goto nla_put_failure;
1f074bd8 1665
1b8ec87a
ZG		 1666 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1667 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1668 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1669 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1670 goto nla_put_failure;
7e7c8926 1671
3713b4e3
JB		 1672 /*
1673 * Any information below this point is only available to
1674 * applications that can deal with it being split. This
1675 * helps ensure that newly added capabilities don't break
1676 * older tools by overrunning their buffers.
1677 *
1678 * We still increment split_start so that in the split
1679 * case we'll continue with more data in the next round,
1680 * but break unconditionally so unsplit data stops here.
1681 */
86e8cf98 1682 state->split_start++;
3713b4e3
JB		 1683 break;
1684 case 9:
1b8ec87a 1685 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1686 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1687 rdev->wiphy.extended_capabilities_len,
1688 rdev->wiphy.extended_capabilities) ||
fe1abafd 1689 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1690 rdev->wiphy.extended_capabilities_len,
1691 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1692 goto nla_put_failure;
a50df0c4 1693
1b8ec87a 1694 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1695 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1696 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1697 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1698 goto nla_put_failure;
1699
be29b99a
AK		 1700 state->split_start++;
1701 break;
1702 case 10:
1b8ec87a 1703 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1704 goto nla_put_failure;
1705
1b8ec87a 1706 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1707 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1708 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1709 goto nla_put_failure;
b43504cf 1710
1b8ec87a 1711 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1712 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1713 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1714 goto nla_put_failure;
1715
ad7e718c
JB		 1716 state->split_start++;
1717 break;
1718 case 11:
1b8ec87a 1719 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1720 const struct nl80211_vendor_cmd_info *info;
1721 struct nlattr *nested;
1722
1723 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1724 if (!nested)
1725 goto nla_put_failure;
1726
1b8ec87a
ZG		 1727 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1728 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1729 if (nla_put(msg, i + 1, sizeof(*info), info))
1730 goto nla_put_failure;
1731 }
1732 nla_nest_end(msg, nested);
1733 }
1734
1b8ec87a 1735 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1736 const struct nl80211_vendor_cmd_info *info;
1737 struct nlattr *nested;
ad7e718c 1738
567ffc35
JB		 1739 nested = nla_nest_start(msg,
1740 NL80211_ATTR_VENDOR_EVENTS);
1741 if (!nested)
ad7e718c 1742 goto nla_put_failure;
567ffc35 1743
1b8ec87a
ZG		 1744 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1745 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1746 if (nla_put(msg, i + 1, sizeof(*info), info))
1747 goto nla_put_failure;
1748 }
1749 nla_nest_end(msg, nested);
1750 }
9a774c78
AO		 1751 state->split_start++;
1752 break;
1753 case 12:
1754 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1755 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1756 rdev->wiphy.max_num_csa_counters))
1757 goto nla_put_failure;
01e0daa4 1758
1bdd716c
AN		 1759 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1760 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1761 goto nla_put_failure;
1762
d75bb06b
GKS		 1763 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1764 sizeof(rdev->wiphy.ext_features),
1765 rdev->wiphy.ext_features))
1766 goto nla_put_failure;
1767
38de03d2
AS		 1768 if (rdev->wiphy.bss_select_support) {
1769 struct nlattr *nested;
1770 u32 bss_select_support = rdev->wiphy.bss_select_support;
1771
1772 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1773 if (!nested)
1774 goto nla_put_failure;
1775
1776 i = 0;
1777 while (bss_select_support) {
1778 if ((bss_select_support & 1) &&
1779 nla_put_flag(msg, i))
1780 goto nla_put_failure;
1781 i++;
1782 bss_select_support >>= 1;
1783 }
1784 nla_nest_end(msg, nested);
1785 }
1786
019ae3a9
KV		 1787 state->split_start++;
1788 break;
1789 case 13:
1790 if (rdev->wiphy.num_iftype_ext_capab &&
1791 rdev->wiphy.iftype_ext_capab) {
1792 struct nlattr *nested_ext_capab, *nested;
1793
1794 nested = nla_nest_start(msg,
1795 NL80211_ATTR_IFTYPE_EXT_CAPA);
1796 if (!nested)
1797 goto nla_put_failure;
1798
1799 for (i = state->capa_start;
1800 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1801 const struct wiphy_iftype_ext_capab *capab;
1802
1803 capab = &rdev->wiphy.iftype_ext_capab[i];
1804
1805 nested_ext_capab = nla_nest_start(msg, i);
1806 if (!nested_ext_capab ||
1807 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1808 capab->iftype) ||
1809 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1810 capab->extended_capabilities_len,
1811 capab->extended_capabilities) ||
1812 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1813 capab->extended_capabilities_len,
1814 capab->extended_capabilities_mask))
1815 goto nla_put_failure;
1816
1817 nla_nest_end(msg, nested_ext_capab);
1818 if (state->split)
1819 break;
1820 }
1821 nla_nest_end(msg, nested);
1822 if (i < rdev->wiphy.num_iftype_ext_capab) {
1823 state->capa_start = i + 1;
1824 break;
1825 }
1826 }
1827
3713b4e3 1828 /* done */
86e8cf98 1829 state->split_start = 0;
3713b4e3
JB		 1830 break;
1831 }
3bb20556 1832 finish:
053c095a
JB		 1833 genlmsg_end(msg, hdr);
1834 return 0;
55682965
JB		 1835
1836 nla_put_failure:
bc3ed28c
TG		 1837 genlmsg_cancel(msg, hdr);
1838 return -EMSGSIZE;
55682965
JB		 1839}
1840
86e8cf98
JB		 1841static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1842 struct netlink_callback *cb,
1843 struct nl80211_dump_wiphy_state *state)
1844{
1845 struct nlattr **tb = nl80211_fam.attrbuf;
1846 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1847 tb, nl80211_fam.maxattr, nl80211_policy);
1848 /* ignore parse errors for backward compatibility */
1849 if (ret)
1850 return 0;
1851
1852 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1853 if (tb[NL80211_ATTR_WIPHY])
1854 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1855 if (tb[NL80211_ATTR_WDEV])
1856 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1857 if (tb[NL80211_ATTR_IFINDEX]) {
1858 struct net_device *netdev;
1859 struct cfg80211_registered_device *rdev;
1860 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1861
7f2b8562 1862 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1863 if (!netdev)
1864 return -ENODEV;
1865 if (netdev->ieee80211_ptr) {
f26cbf40 1866 rdev = wiphy_to_rdev(
86e8cf98
JB		 1867 netdev->ieee80211_ptr->wiphy);
1868 state->filter_wiphy = rdev->wiphy_idx;
1869 }
86e8cf98
JB		 1870 }
1871
1872 return 0;
1873}
1874
55682965
JB		 1875static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1876{
645e77de 1877 int idx = 0, ret;
86e8cf98 1878 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1879 struct cfg80211_registered_device *rdev;
3a5a423b 1880
5fe231e8 1881 rtnl_lock();
86e8cf98
JB		 1882 if (!state) {
1883 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1884 if (!state) {
1885 rtnl_unlock();
86e8cf98 1886 return -ENOMEM;
3713b4e3 1887 }
86e8cf98
JB		 1888 state->filter_wiphy = -1;
1889 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1890 if (ret) {
1891 kfree(state);
1892 rtnl_unlock();
1893 return ret;
3713b4e3 1894 }
86e8cf98 1895 cb->args[0] = (long)state;
3713b4e3
JB		 1896 }
1897
1b8ec87a
ZG		 1898 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1899 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1900 continue;
86e8cf98 1901 if (++idx <= state->start)
55682965 1902 continue;
86e8cf98 1903 if (state->filter_wiphy != -1 &&
1b8ec87a 1904 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1905 continue;
1906 /* attempt to fit multiple wiphy data chunks into the skb */
1907 do {
3bb20556
JB		 1908 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1909 skb,
3713b4e3
JB		 1910 NETLINK_CB(cb->skb).portid,
1911 cb->nlh->nlmsg_seq,
86e8cf98 1912 NLM_F_MULTI, state);
3713b4e3
JB		 1913 if (ret < 0) {
1914 /*
1915 * If sending the wiphy data didn't fit (ENOBUFS
1916 * or EMSGSIZE returned), this SKB is still
1917 * empty (so it's not too big because another
1918 * wiphy dataset is already in the skb) and
1919 * we've not tried to adjust the dump allocation
1920 * yet ... then adjust the alloc size to be
1921 * bigger, and return 1 but with the empty skb.
1922 * This results in an empty message being RX'ed
1923 * in userspace, but that is ignored.
1924 *
1925 * We can then retry with the larger buffer.
1926 */
1927 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1928 !skb->len && !state->split &&
3713b4e3
JB		 1929 cb->min_dump_alloc < 4096) {
1930 cb->min_dump_alloc = 4096;
f12cb289 1931 state->split_start = 0;
d98cae64 1932 rtnl_unlock();
3713b4e3
JB		 1933 return 1;
1934 }
1935 idx--;
1936 break;
645e77de 1937 }
86e8cf98 1938 } while (state->split_start > 0);
3713b4e3 1939 break;
55682965 1940 }
5fe231e8 1941 rtnl_unlock();
55682965 1942
86e8cf98 1943 state->start = idx;
55682965
JB		 1944
1945 return skb->len;
1946}
1947
86e8cf98
JB		 1948static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1949{
1950 kfree((void *)cb->args[0]);
1951 return 0;
1952}
1953
55682965
JB		 1954static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1955{
1956 struct sk_buff *msg;
1b8ec87a 1957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1958 struct nl80211_dump_wiphy_state state = {};
55682965 1959
645e77de 1960 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1961 if (!msg)
4c476991 1962 return -ENOMEM;
55682965 1963
3bb20556
JB		 1964 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1965 info->snd_portid, info->snd_seq, 0,
86e8cf98 1966 &state) < 0) {
4c476991
JB		 1967 nlmsg_free(msg);
1968 return -ENOBUFS;
1969 }
55682965 1970
134e6375 1971 return genlmsg_reply(msg, info);
55682965
JB		 1972}
1973
31888487
JM		 1974static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1975 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1976 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1977 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1978 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1979 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1980};
1981
1982static int parse_txq_params(struct nlattr *tb[],
1983 struct ieee80211_txq_params *txq_params)
1984{
a3304b0a 1985 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1986 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1987 !tb[NL80211_TXQ_ATTR_AIFS])
1988 return -EINVAL;
1989
a3304b0a 1990 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1991 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1992 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1993 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1994 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1995
a3304b0a
JB		 1996 if (txq_params->ac >= NL80211_NUM_ACS)
1997 return -EINVAL;
1998
31888487
JM		 1999 return 0;
2000}
2001
f444de05
JB		 2002static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2003{
2004 /*
cc1d2806
JB		 2005 * You can only set the channel explicitly for WDS interfaces,
2006 * all others have their channel managed via their respective
2007 * "establish a connection" command (connect, join, ...)
2008 *
2009 * For AP/GO and mesh mode, the channel can be set with the
2010 * channel userspace API, but is only stored and passed to the
2011 * low-level driver when the AP starts or the mesh is joined.
2012 * This is for backward compatibility, userspace can also give
2013 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 2014 *
2015 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 2016 * whatever else is going on, so they have their own special
2017 * operation to set the monitor channel if possible.
f444de05
JB		 2018 */
2019 return !wdev ||
2020 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 2021 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 2022 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2023 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 2024}
2025
683b6d3b
JB		 2026static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2027 struct genl_info *info,
2028 struct cfg80211_chan_def *chandef)
2029{
dbeca2ea 2030 u32 control_freq;
683b6d3b
JB		 2031
2032 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2033 return -EINVAL;
2034
2035 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2036
2037 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 2038 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2039 chandef->center_freq1 = control_freq;
2040 chandef->center_freq2 = 0;
683b6d3b
JB		 2041
2042 /* Primary channel not allowed */
2043 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2044 return -EINVAL;
2045
3d9d1d66
JB		 2046 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2047 enum nl80211_channel_type chantype;
2048
2049 chantype = nla_get_u32(
2050 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2051
2052 switch (chantype) {
2053 case NL80211_CHAN_NO_HT:
2054 case NL80211_CHAN_HT20:
2055 case NL80211_CHAN_HT40PLUS:
2056 case NL80211_CHAN_HT40MINUS:
2057 cfg80211_chandef_create(chandef, chandef->chan,
2058 chantype);
2059 break;
2060 default:
2061 return -EINVAL;
2062 }
2063 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2064 chandef->width =
2065 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2066 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2067 chandef->center_freq1 =
2068 nla_get_u32(
2069 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2070 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2071 chandef->center_freq2 =
2072 nla_get_u32(
2073 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2074 }
2075
9f5e8f6e 2076 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 2077 return -EINVAL;
2078
9f5e8f6e
JB		 2079 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2080 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 2081 return -EINVAL;
2082
2f301ab2
SW		 2083 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2084 chandef->width == NL80211_CHAN_WIDTH_10) &&
2085 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2086 return -EINVAL;
2087
683b6d3b
JB		 2088 return 0;
2089}
2090
f444de05 2091static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 2092 struct net_device *dev,
f444de05
JB		 2093 struct genl_info *info)
2094{
683b6d3b 2095 struct cfg80211_chan_def chandef;
f444de05 2096 int result;
e8c9bd5b 2097 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2098 struct wireless_dev *wdev = NULL;
e8c9bd5b 2099
e16821bc
JM		 2100 if (dev)
2101 wdev = dev->ieee80211_ptr;
f444de05
JB		 2102 if (!nl80211_can_set_dev_channel(wdev))
2103 return -EOPNOTSUPP;
e16821bc
JM		 2104 if (wdev)
2105 iftype = wdev->iftype;
f444de05 2106
683b6d3b
JB		 2107 result = nl80211_parse_chandef(rdev, info, &chandef);
2108 if (result)
2109 return result;
f444de05 2110
e8c9bd5b 2111 switch (iftype) {
aa430da4
JB		 2112 case NL80211_IFTYPE_AP:
2113 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2114 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2115 iftype)) {
aa430da4
JB		 2116 result = -EINVAL;
2117 break;
2118 }
e16821bc
JM		 2119 if (wdev->beacon_interval) {
2120 if (!dev || !rdev->ops->set_ap_chanwidth ||
2121 !(rdev->wiphy.features &
2122 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2123 result = -EBUSY;
2124 break;
2125 }
2126
2127 /* Only allow dynamic channel width changes */
2128 if (chandef.chan != wdev->preset_chandef.chan) {
2129 result = -EBUSY;
2130 break;
2131 }
2132 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2133 if (result)
2134 break;
2135 }
683b6d3b 2136 wdev->preset_chandef = chandef;
aa430da4
JB		 2137 result = 0;
2138 break;
cc1d2806 2139 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2140 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2141 break;
e8c9bd5b 2142 case NL80211_IFTYPE_MONITOR:
683b6d3b 2143 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2144 break;
aa430da4 2145 default:
e8c9bd5b 2146 result = -EINVAL;
f444de05 2147 }
f444de05
JB		 2148
2149 return result;
2150}
2151
2152static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2153{
4c476991
JB		 2154 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2155 struct net_device *netdev = info->user_ptr[1];
f444de05 2156
e16821bc 2157 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2158}
2159
e8347eba
BJ		 2160static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2161{
43b19952
JB		 2162 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2163 struct net_device *dev = info->user_ptr[1];
2164 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2165 const u8 *bssid;
e8347eba
BJ		 2166
2167 if (!info->attrs[NL80211_ATTR_MAC])
2168 return -EINVAL;
2169
43b19952
JB		 2170 if (netif_running(dev))
2171 return -EBUSY;
e8347eba 2172
43b19952
JB		 2173 if (!rdev->ops->set_wds_peer)
2174 return -EOPNOTSUPP;
e8347eba 2175
43b19952
JB		 2176 if (wdev->iftype != NL80211_IFTYPE_WDS)
2177 return -EOPNOTSUPP;
e8347eba
BJ		 2178
2179 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2180 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2181}
2182
55682965
JB		 2183static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2184{
2185 struct cfg80211_registered_device *rdev;
f444de05
JB		 2186 struct net_device *netdev = NULL;
2187 struct wireless_dev *wdev;
a1e567c8 2188 int result = 0, rem_txq_params = 0;
31888487 2189 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2190 u32 changed;
2191 u8 retry_short = 0, retry_long = 0;
2192 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2193 u8 coverage_class = 0;
55682965 2194
5fe231e8
JB		 2195 ASSERT_RTNL();
2196
f444de05
JB		 2197 /*
2198 * Try to find the wiphy and netdev. Normally this
2199 * function shouldn't need the netdev, but this is
2200 * done for backward compatibility -- previously
2201 * setting the channel was done per wiphy, but now
2202 * it is per netdev. Previous userland like hostapd
2203 * also passed a netdev to set_wiphy, so that it is
2204 * possible to let that go to the right netdev!
2205 */
4bbf4d56 2206
f444de05
JB		 2207 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2208 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2209
7f2b8562 2210 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2211 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2212 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2213 else
f444de05 2214 netdev = NULL;
4bbf4d56
JB		 2215 }
2216
f444de05 2217 if (!netdev) {
878d9ec7
JB		 2218 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2219 info->attrs);
5fe231e8 2220 if (IS_ERR(rdev))
4c476991 2221 return PTR_ERR(rdev);
f444de05
JB		 2222 wdev = NULL;
2223 netdev = NULL;
2224 result = 0;
71fe96bf 2225 } else
f444de05 2226 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2227
2228 /*
2229 * end workaround code, by now the rdev is available
2230 * and locked, and wdev may or may not be NULL.
2231 */
4bbf4d56
JB		 2232
2233 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2234 result = cfg80211_dev_rename(
2235 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2236
4bbf4d56 2237 if (result)
7f2b8562 2238 return result;
31888487
JM		 2239
2240 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2241 struct ieee80211_txq_params txq_params;
2242 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2243
7f2b8562
YX		 2244 if (!rdev->ops->set_txq_params)
2245 return -EOPNOTSUPP;
31888487 2246
7f2b8562
YX		 2247 if (!netdev)
2248 return -EINVAL;
f70f01c2 2249
133a3ff2 2250 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2251 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2252 return -EINVAL;
133a3ff2 2253
7f2b8562
YX		 2254 if (!netif_running(netdev))
2255 return -ENETDOWN;
2b5f8b0b 2256
31888487
JM		 2257 nla_for_each_nested(nl_txq_params,
2258 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2259 rem_txq_params) {
ae811e21
JB		 2260 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2261 nla_data(nl_txq_params),
2262 nla_len(nl_txq_params),
2263 txq_params_policy);
2264 if (result)
2265 return result;
31888487
JM		 2266 result = parse_txq_params(tb, &txq_params);
2267 if (result)
7f2b8562 2268 return result;
31888487 2269
e35e4d28
HG		 2270 result = rdev_set_txq_params(rdev, netdev,
2271 &txq_params);
31888487 2272 if (result)
7f2b8562 2273 return result;
31888487
JM		 2274 }
2275 }
55682965 2276
72bdcf34 2277 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2278 result = __nl80211_set_channel(
2279 rdev,
2280 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2281 info);
72bdcf34 2282 if (result)
7f2b8562 2283 return result;
72bdcf34
JM		 2284 }
2285
98d2ff8b 2286 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2287 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2288 enum nl80211_tx_power_setting type;
2289 int idx, mbm = 0;
2290
c8442118
JB		 2291 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2292 txp_wdev = NULL;
2293
7f2b8562
YX		 2294 if (!rdev->ops->set_tx_power)
2295 return -EOPNOTSUPP;
98d2ff8b
JO		 2296
2297 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2298 type = nla_get_u32(info->attrs[idx]);
2299
2300 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2301 (type != NL80211_TX_POWER_AUTOMATIC))
2302 return -EINVAL;
98d2ff8b
JO		 2303
2304 if (type != NL80211_TX_POWER_AUTOMATIC) {
2305 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2306 mbm = nla_get_u32(info->attrs[idx]);
2307 }
2308
c8442118 2309 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2310 if (result)
7f2b8562 2311 return result;
98d2ff8b
JO		 2312 }
2313
afe0cbf8
BR		 2314 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2315 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2316 u32 tx_ant, rx_ant;
7a087e74 2317
7f531e03
BR		 2318 if ((!rdev->wiphy.available_antennas_tx &&
2319 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2320 !rdev->ops->set_antenna)
2321 return -EOPNOTSUPP;
afe0cbf8
BR		 2322
2323 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2324 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2325
a7ffac95 2326 /* reject antenna configurations which don't match the
7f531e03
BR		 2327 * available antenna masks, except for the "all" mask */
2328 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2329 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2330 return -EINVAL;
a7ffac95 2331
7f531e03
BR		 2332 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2333 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2334
e35e4d28 2335 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2336 if (result)
7f2b8562 2337 return result;
afe0cbf8
BR		 2338 }
2339
b9a5f8ca
JM		 2340 changed = 0;
2341
2342 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2343 retry_short = nla_get_u8(
2344 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2345 if (retry_short == 0)
2346 return -EINVAL;
2347
b9a5f8ca
JM		 2348 changed |= WIPHY_PARAM_RETRY_SHORT;
2349 }
2350
2351 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2352 retry_long = nla_get_u8(
2353 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2354 if (retry_long == 0)
2355 return -EINVAL;
2356
b9a5f8ca
JM		 2357 changed |= WIPHY_PARAM_RETRY_LONG;
2358 }
2359
2360 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2361 frag_threshold = nla_get_u32(
2362 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2363 if (frag_threshold < 256)
2364 return -EINVAL;
2365
b9a5f8ca
JM		 2366 if (frag_threshold != (u32) -1) {
2367 /*
2368 * Fragments (apart from the last one) are required to
2369 * have even length. Make the fragmentation code
2370 * simpler by stripping LSB should someone try to use
2371 * odd threshold value.
2372 */
2373 frag_threshold &= ~0x1;
2374 }
2375 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2376 }
2377
2378 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2379 rts_threshold = nla_get_u32(
2380 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2381 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2382 }
2383
81077e82 2384 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2385 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2386 return -EINVAL;
2387
81077e82
LT		 2388 coverage_class = nla_get_u8(
2389 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2390 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2391 }
2392
3057dbfd
LB		 2393 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2394 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2395 return -EOPNOTSUPP;
2396
2397 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2398 }
2399
b9a5f8ca
JM		 2400 if (changed) {
2401 u8 old_retry_short, old_retry_long;
2402 u32 old_frag_threshold, old_rts_threshold;
81077e82 2403 u8 old_coverage_class;
b9a5f8ca 2404
7f2b8562
YX		 2405 if (!rdev->ops->set_wiphy_params)
2406 return -EOPNOTSUPP;
b9a5f8ca
JM		 2407
2408 old_retry_short = rdev->wiphy.retry_short;
2409 old_retry_long = rdev->wiphy.retry_long;
2410 old_frag_threshold = rdev->wiphy.frag_threshold;
2411 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2412 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2413
2414 if (changed & WIPHY_PARAM_RETRY_SHORT)
2415 rdev->wiphy.retry_short = retry_short;
2416 if (changed & WIPHY_PARAM_RETRY_LONG)
2417 rdev->wiphy.retry_long = retry_long;
2418 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2419 rdev->wiphy.frag_threshold = frag_threshold;
2420 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2421 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2422 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2423 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2424
e35e4d28 2425 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2426 if (result) {
2427 rdev->wiphy.retry_short = old_retry_short;
2428 rdev->wiphy.retry_long = old_retry_long;
2429 rdev->wiphy.frag_threshold = old_frag_threshold;
2430 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2431 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2432 return result;
b9a5f8ca
JM		 2433 }
2434 }
7f2b8562 2435 return 0;
55682965
JB		 2436}
2437
71bbc994
JB		 2438static inline u64 wdev_id(struct wireless_dev *wdev)
2439{
2440 return (u64)wdev->identifier |
f26cbf40 2441 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2442}
55682965 2443
683b6d3b 2444static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2445 const struct cfg80211_chan_def *chandef)
683b6d3b 2446{
601555cd
JB		 2447 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2448 return -EINVAL;
3d9d1d66 2449
683b6d3b
JB		 2450 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2451 chandef->chan->center_freq))
2452 return -ENOBUFS;
3d9d1d66
JB		 2453 switch (chandef->width) {
2454 case NL80211_CHAN_WIDTH_20_NOHT:
2455 case NL80211_CHAN_WIDTH_20:
2456 case NL80211_CHAN_WIDTH_40:
2457 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2458 cfg80211_get_chandef_type(chandef)))
2459 return -ENOBUFS;
2460 break;
2461 default:
2462 break;
2463 }
2464 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2465 return -ENOBUFS;
2466 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2467 return -ENOBUFS;
2468 if (chandef->center_freq2 &&
2469 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2470 return -ENOBUFS;
2471 return 0;
2472}
2473
15e47304 2474static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2475 struct cfg80211_registered_device *rdev,
8f894be2 2476 struct wireless_dev *wdev, bool removal)
55682965 2477{
72fb2abc 2478 struct net_device *dev = wdev->netdev;
8f894be2 2479 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2480 void *hdr;
2481
8f894be2
TB		 2482 if (removal)
2483 cmd = NL80211_CMD_DEL_INTERFACE;
2484
2485 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2486 if (!hdr)
2487 return -1;
2488
72fb2abc
JB		 2489 if (dev &&
2490 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2491 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2492 goto nla_put_failure;
2493
2494 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2495 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2dad624e
ND		 2496 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2497 NL80211_ATTR_PAD) ||
98104fde 2498 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2499 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2500 rdev->devlist_generation ^
2501 (cfg80211_rdev_list_generation << 2)))
2502 goto nla_put_failure;
f5ea9120 2503
5b7ccaf3 2504 if (rdev->ops->get_channel) {
683b6d3b
JB		 2505 int ret;
2506 struct cfg80211_chan_def chandef;
2507
2508 ret = rdev_get_channel(rdev, wdev, &chandef);
2509 if (ret == 0) {
2510 if (nl80211_send_chandef(msg, &chandef))
2511 goto nla_put_failure;
2512 }
d91df0e3
PF		 2513 }
2514
d55d0d59
RM		 2515 if (rdev->ops->get_tx_power) {
2516 int dbm, ret;
2517
2518 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2519 if (ret == 0 &&
2520 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2521 DBM_TO_MBM(dbm)))
2522 goto nla_put_failure;
2523 }
2524
b84e7a05
AQ		 2525 if (wdev->ssid_len) {
2526 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2527 goto nla_put_failure;
2528 }
2529
053c095a
JB		 2530 genlmsg_end(msg, hdr);
2531 return 0;
55682965
JB		 2532
2533 nla_put_failure:
bc3ed28c
TG		 2534 genlmsg_cancel(msg, hdr);
2535 return -EMSGSIZE;
55682965
JB		 2536}
2537
2538static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2539{
2540 int wp_idx = 0;
2541 int if_idx = 0;
2542 int wp_start = cb->args[0];
2543 int if_start = cb->args[1];
b7fb44da 2544 int filter_wiphy = -1;
f5ea9120 2545 struct cfg80211_registered_device *rdev;
55682965
JB		 2546 struct wireless_dev *wdev;
2547
5fe231e8 2548 rtnl_lock();
b7fb44da
DK		 2549 if (!cb->args[2]) {
2550 struct nl80211_dump_wiphy_state state = {
2551 .filter_wiphy = -1,
2552 };
2553 int ret;
2554
2555 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2556 if (ret)
2557 return ret;
2558
2559 filter_wiphy = state.filter_wiphy;
2560
2561 /*
2562 * if filtering, set cb->args[2] to +1 since 0 is the default
2563 * value needed to determine that parsing is necessary.
2564 */
2565 if (filter_wiphy >= 0)
2566 cb->args[2] = filter_wiphy + 1;
2567 else
2568 cb->args[2] = -1;
2569 } else if (cb->args[2] > 0) {
2570 filter_wiphy = cb->args[2] - 1;
2571 }
2572
f5ea9120
JB		 2573 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2574 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2575 continue;
bba95fef
JB		 2576 if (wp_idx < wp_start) {
2577 wp_idx++;
55682965 2578 continue;
bba95fef 2579 }
b7fb44da
DK		 2580
2581 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2582 continue;
2583
55682965
JB		 2584 if_idx = 0;
2585
53873f13 2586 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
bba95fef
JB		 2587 if (if_idx < if_start) {
2588 if_idx++;
55682965 2589 continue;
bba95fef 2590 }
15e47304 2591 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2592 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2593 rdev, wdev, false) < 0) {
bba95fef
JB		 2594 goto out;
2595 }
2596 if_idx++;
55682965 2597 }
bba95fef
JB		 2598
2599 wp_idx++;
55682965 2600 }
bba95fef 2601 out:
5fe231e8 2602 rtnl_unlock();
55682965
JB		 2603
2604 cb->args[0] = wp_idx;
2605 cb->args[1] = if_idx;
2606
2607 return skb->len;
2608}
2609
2610static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2611{
2612 struct sk_buff *msg;
1b8ec87a 2613 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2614 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2615
fd2120ca 2616 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2617 if (!msg)
4c476991 2618 return -ENOMEM;
55682965 2619
15e47304 2620 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2621 rdev, wdev, false) < 0) {
4c476991
JB		 2622 nlmsg_free(msg);
2623 return -ENOBUFS;
2624 }
55682965 2625
134e6375 2626 return genlmsg_reply(msg, info);
55682965
JB		 2627}
2628
66f7ac50
MW		 2629static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2630 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2631 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2632 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2633 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2634 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2635 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2636};
2637
2638static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2639{
2640 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2641 int flag;
2642
2643 *mntrflags = 0;
2644
2645 if (!nla)
2646 return -EINVAL;
2647
2648 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2649 nla, mntr_flags_policy))
2650 return -EINVAL;
2651
2652 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2653 if (flags[flag])
2654 *mntrflags |= (1<<flag);
2655
2656 return 0;
2657}
2658
9bc383de 2659static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2660 struct net_device *netdev, u8 use_4addr,
2661 enum nl80211_iftype iftype)
9bc383de 2662{
ad4bb6f8 2663 if (!use_4addr) {
f350a0a8 2664 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2665 return -EBUSY;
9bc383de 2666 return 0;
ad4bb6f8 2667 }
9bc383de
JB		 2668
2669 switch (iftype) {
2670 case NL80211_IFTYPE_AP_VLAN:
2671 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2672 return 0;
2673 break;
2674 case NL80211_IFTYPE_STATION:
2675 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2676 return 0;
2677 break;
2678 default:
2679 break;
2680 }
2681
2682 return -EOPNOTSUPP;
2683}
2684
55682965
JB		 2685static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2686{
4c476991 2687 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2688 struct vif_params params;
e36d56b6 2689 int err;
04a773ad 2690 enum nl80211_iftype otype, ntype;
4c476991 2691 struct net_device *dev = info->user_ptr[1];
92ffe055 2692 u32 _flags, *flags = NULL;
ac7f9cfa 2693 bool change = false;
55682965 2694
2ec600d6
LCC		 2695 memset(&params, 0, sizeof(params));
2696
04a773ad 2697 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2698
723b038d 2699 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2700 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2701 if (otype != ntype)
ac7f9cfa 2702 change = true;
4c476991
JB		 2703 if (ntype > NL80211_IFTYPE_MAX)
2704 return -EINVAL;
723b038d
JB		 2705 }
2706
92ffe055 2707 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2708 struct wireless_dev *wdev = dev->ieee80211_ptr;
2709
4c476991
JB		 2710 if (ntype != NL80211_IFTYPE_MESH_POINT)
2711 return -EINVAL;
29cbe68c
JB		 2712 if (netif_running(dev))
2713 return -EBUSY;
2714
2715 wdev_lock(wdev);
2716 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2717 IEEE80211_MAX_MESH_ID_LEN);
2718 wdev->mesh_id_up_len =
2719 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2720 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2721 wdev->mesh_id_up_len);
2722 wdev_unlock(wdev);
2ec600d6
LCC		 2723 }
2724
8b787643
FF		 2725 if (info->attrs[NL80211_ATTR_4ADDR]) {
2726 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2727 change = true;
ad4bb6f8 2728 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2729 if (err)
4c476991 2730 return err;
8b787643
FF		 2731 } else {
2732 params.use_4addr = -1;
2733 }
2734
92ffe055 2735 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2736 if (ntype != NL80211_IFTYPE_MONITOR)
2737 return -EINVAL;
92ffe055
JB		 2738 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2739 &_flags);
ac7f9cfa 2740 if (err)
4c476991 2741 return err;
ac7f9cfa
JB		 2742
2743 flags = &_flags;
2744 change = true;
92ffe055 2745 }
3b85875a 2746
c6e6a0c8
AE		 2747 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2748 const u8 *mumimo_groups;
2749 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2750
2751 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2752 return -EOPNOTSUPP;
2753
2754 mumimo_groups =
2755 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2756
2757 /* bits 0 and 63 are reserved and must be zero */
2758 if ((mumimo_groups[0] & BIT(7)) ||
2759 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(0)))
2760 return -EINVAL;
2761
2762 memcpy(params.vht_mumimo_groups, mumimo_groups,
2763 VHT_MUMIMO_GROUPS_DATA_LEN);
2764 change = true;
2765 }
2766
2767 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2768 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2769
2770 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2771 return -EOPNOTSUPP;
2772
2773 nla_memcpy(params.macaddr,
2774 info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR],
2775 ETH_ALEN);
2776 change = true;
2777 }
2778
18003297 2779 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2780 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2781 return -EOPNOTSUPP;
2782
ac7f9cfa 2783 if (change)
3d54d255 2784 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2785 else
2786 err = 0;
60719ffd 2787
9bc383de
JB		 2788 if (!err && params.use_4addr != -1)
2789 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2790
55682965
JB		 2791 return err;
2792}
2793
2794static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2795{
4c476991 2796 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2797 struct vif_params params;
84efbb84 2798 struct wireless_dev *wdev;
896ff063 2799 struct sk_buff *msg;
55682965
JB		 2800 int err;
2801 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2802 u32 flags;
55682965 2803
78f22b6a
JB		 2804 /* to avoid failing a new interface creation due to pending removal */
2805 cfg80211_destroy_ifaces(rdev);
2806
2ec600d6
LCC		 2807 memset(&params, 0, sizeof(params));
2808
55682965
JB		 2809 if (!info->attrs[NL80211_ATTR_IFNAME])
2810 return -EINVAL;
2811
2812 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2813 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2814 if (type > NL80211_IFTYPE_MAX)
2815 return -EINVAL;
2816 }
2817
79c97e97 2818 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2819 !(rdev->wiphy.interface_modes & (1 << type)))
2820 return -EOPNOTSUPP;
55682965 2821
e8f479b1
BG		 2822 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2823 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2824 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2825 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2826 ETH_ALEN);
2827 if (!is_valid_ether_addr(params.macaddr))
2828 return -EADDRNOTAVAIL;
2829 }
2830
9bc383de 2831 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2832 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2833 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2834 if (err)
4c476991 2835 return err;
9bc383de 2836 }
8b787643 2837
66f7ac50
MW		 2838 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2839 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2840 &flags);
e057d3c3 2841
18003297 2842 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2843 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2844 return -EOPNOTSUPP;
2845
a18c7192
JB		 2846 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2847 if (!msg)
2848 return -ENOMEM;
2849
e35e4d28
HG		 2850 wdev = rdev_add_virtual_intf(rdev,
2851 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2852 NET_NAME_USER, type, err ? NULL : &flags,
2853 &params);
d687cbb7
RM		 2854 if (WARN_ON(!wdev)) {
2855 nlmsg_free(msg);
2856 return -EPROTO;
2857 } else if (IS_ERR(wdev)) {
1c90f9d4 2858 nlmsg_free(msg);
84efbb84 2859 return PTR_ERR(wdev);
1c90f9d4 2860 }
2ec600d6 2861
18e5ca65 2862 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2863 wdev->owner_nlportid = info->snd_portid;
2864
98104fde
JB		 2865 switch (type) {
2866 case NL80211_IFTYPE_MESH_POINT:
2867 if (!info->attrs[NL80211_ATTR_MESH_ID])
2868 break;
29cbe68c
JB		 2869 wdev_lock(wdev);
2870 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2871 IEEE80211_MAX_MESH_ID_LEN);
2872 wdev->mesh_id_up_len =
2873 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2874 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2875 wdev->mesh_id_up_len);
2876 wdev_unlock(wdev);
98104fde
JB		 2877 break;
2878 case NL80211_IFTYPE_P2P_DEVICE:
2879 /*
2880 * P2P Device doesn't have a netdev, so doesn't go
2881 * through the netdev notifier and must be added here
2882 */
2883 mutex_init(&wdev->mtx);
2884 INIT_LIST_HEAD(&wdev->event_list);
2885 spin_lock_init(&wdev->event_lock);
2886 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2887 spin_lock_init(&wdev->mgmt_registrations_lock);
2888
98104fde 2889 wdev->identifier = ++rdev->wdev_id;
53873f13 2890 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
98104fde 2891 rdev->devlist_generation++;
98104fde
JB		 2892 break;
2893 default:
2894 break;
29cbe68c
JB		 2895 }
2896
15e47304 2897 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2898 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2899 nlmsg_free(msg);
2900 return -ENOBUFS;
2901 }
2902
896ff063
DK		 2903 /*
2904 * For wdevs which have no associated netdev object (e.g. of type
2905 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
2906 * For all other types, the event will be generated from the
2907 * netdev notifier
2908 */
2909 if (!wdev->netdev)
2910 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
8f894be2 2911
1c90f9d4 2912 return genlmsg_reply(msg, info);
55682965
JB		 2913}
2914
2915static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2916{
4c476991 2917 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2918 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2919
4c476991
JB		 2920 if (!rdev->ops->del_virtual_intf)
2921 return -EOPNOTSUPP;
55682965 2922
84efbb84
JB		 2923 /*
2924 * If we remove a wireless device without a netdev then clear
2925 * user_ptr[1] so that nl80211_post_doit won't dereference it
2926 * to check if it needs to do dev_put(). Otherwise it crashes
2927 * since the wdev has been freed, unlike with a netdev where
2928 * we need the dev_put() for the netdev to really be freed.
2929 */
2930 if (!wdev->netdev)
2931 info->user_ptr[1] = NULL;
2932
7f8ed01e 2933 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2934}
2935
1d9d9213
SW		 2936static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2937{
2938 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2939 struct net_device *dev = info->user_ptr[1];
2940 u16 noack_map;
2941
2942 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2943 return -EINVAL;
2944
2945 if (!rdev->ops->set_noack_map)
2946 return -EOPNOTSUPP;
2947
2948 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2949
e35e4d28 2950 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2951}
2952
41ade00f
JB		 2953struct get_key_cookie {
2954 struct sk_buff *msg;
2955 int error;
b9454e83 2956 int idx;
41ade00f
JB		 2957};
2958
2959static void get_key_callback(void *c, struct key_params *params)
2960{
b9454e83 2961 struct nlattr *key;
41ade00f
JB		 2962 struct get_key_cookie *cookie = c;
2963
9360ffd1
DM		 2964 if ((params->key &&
2965 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2966 params->key_len, params->key)) ||
2967 (params->seq &&
2968 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2969 params->seq_len, params->seq)) ||
2970 (params->cipher &&
2971 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2972 params->cipher)))
2973 goto nla_put_failure;
41ade00f 2974
b9454e83
JB		 2975 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2976 if (!key)
2977 goto nla_put_failure;
2978
9360ffd1
DM		 2979 if ((params->key &&
2980 nla_put(cookie->msg, NL80211_KEY_DATA,
2981 params->key_len, params->key)) ||
2982 (params->seq &&
2983 nla_put(cookie->msg, NL80211_KEY_SEQ,
2984 params->seq_len, params->seq)) ||
2985 (params->cipher &&
2986 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2987 params->cipher)))
2988 goto nla_put_failure;
b9454e83 2989
9360ffd1
DM		 2990 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2991 goto nla_put_failure;
b9454e83
JB		 2992
2993 nla_nest_end(cookie->msg, key);
2994
41ade00f
JB		 2995 return;
2996 nla_put_failure:
2997 cookie->error = 1;
2998}
2999
3000static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3001{
4c476991 3002 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3003 int err;
4c476991 3004 struct net_device *dev = info->user_ptr[1];
41ade00f 3005 u8 key_idx = 0;
e31b8213
JB		 3006 const u8 *mac_addr = NULL;
3007 bool pairwise;
41ade00f
JB		 3008 struct get_key_cookie cookie = {
3009 .error = 0,
3010 };
3011 void *hdr;
3012 struct sk_buff *msg;
3013
3014 if (info->attrs[NL80211_ATTR_KEY_IDX])
3015 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3016
3cfcf6ac 3017 if (key_idx > 5)
41ade00f
JB		 3018 return -EINVAL;
3019
3020 if (info->attrs[NL80211_ATTR_MAC])
3021 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3022
e31b8213
JB		 3023 pairwise = !!mac_addr;
3024 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3025 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
7a087e74 3026
e31b8213
JB		 3027 if (kt >= NUM_NL80211_KEYTYPES)
3028 return -EINVAL;
3029 if (kt != NL80211_KEYTYPE_GROUP &&
3030 kt != NL80211_KEYTYPE_PAIRWISE)
3031 return -EINVAL;
3032 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3033 }
3034
4c476991
JB		 3035 if (!rdev->ops->get_key)
3036 return -EOPNOTSUPP;
41ade00f 3037
0fa7b391
JB		 3038 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3039 return -ENOENT;
3040
fd2120ca 3041 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3042 if (!msg)
3043 return -ENOMEM;
41ade00f 3044
15e47304 3045 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 3046 NL80211_CMD_NEW_KEY);
cb35fba3 3047 if (!hdr)
9fe271af 3048 goto nla_put_failure;
41ade00f
JB		 3049
3050 cookie.msg = msg;
b9454e83 3051 cookie.idx = key_idx;
41ade00f 3052
9360ffd1
DM		 3053 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3054 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3055 goto nla_put_failure;
3056 if (mac_addr &&
3057 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3058 goto nla_put_failure;
41ade00f 3059
e35e4d28
HG		 3060 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3061 get_key_callback);
41ade00f
JB		 3062
3063 if (err)
6c95e2a2 3064 goto free_msg;
41ade00f
JB		 3065
3066 if (cookie.error)
3067 goto nla_put_failure;
3068
3069 genlmsg_end(msg, hdr);
4c476991 3070 return genlmsg_reply(msg, info);
41ade00f
JB		 3071
3072 nla_put_failure:
3073 err = -ENOBUFS;
6c95e2a2 3074 free_msg:
41ade00f 3075 nlmsg_free(msg);
41ade00f
JB		 3076 return err;
3077}
3078
3079static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3080{
4c476991 3081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 3082 struct key_parse key;
41ade00f 3083 int err;
4c476991 3084 struct net_device *dev = info->user_ptr[1];
41ade00f 3085
b9454e83
JB		 3086 err = nl80211_parse_key(info, &key);
3087 if (err)
3088 return err;
41ade00f 3089
b9454e83 3090 if (key.idx < 0)
41ade00f
JB		 3091 return -EINVAL;
3092
b9454e83
JB		 3093 /* only support setting default key */
3094 if (!key.def && !key.defmgmt)
41ade00f
JB		 3095 return -EINVAL;
3096
dbd2fd65 3097 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 3098
dbd2fd65
JB		 3099 if (key.def) {
3100 if (!rdev->ops->set_default_key) {
3101 err = -EOPNOTSUPP;
3102 goto out;
3103 }
41ade00f 3104
dbd2fd65
JB		 3105 err = nl80211_key_allowed(dev->ieee80211_ptr);
3106 if (err)
3107 goto out;
3108
e35e4d28 3109 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 3110 key.def_uni, key.def_multi);
3111
3112 if (err)
3113 goto out;
fffd0934 3114
3d23e349 3115#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 3116 dev->ieee80211_ptr->wext.default_key = key.idx;
3117#endif
3118 } else {
3119 if (key.def_uni || !key.def_multi) {
3120 err = -EINVAL;
3121 goto out;
3122 }
3123
3124 if (!rdev->ops->set_default_mgmt_key) {
3125 err = -EOPNOTSUPP;
3126 goto out;
3127 }
3128
3129 err = nl80211_key_allowed(dev->ieee80211_ptr);
3130 if (err)
3131 goto out;
3132
e35e4d28 3133 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 3134 if (err)
3135 goto out;
3136
3137#ifdef CONFIG_CFG80211_WEXT
3138 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3139#endif
dbd2fd65
JB		 3140 }
3141
3142 out:
fffd0934 3143 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3144
41ade00f
JB		 3145 return err;
3146}
3147
3148static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3149{
4c476991 3150 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3151 int err;
4c476991 3152 struct net_device *dev = info->user_ptr[1];
b9454e83 3153 struct key_parse key;
e31b8213 3154 const u8 *mac_addr = NULL;
41ade00f 3155
b9454e83
JB		 3156 err = nl80211_parse_key(info, &key);
3157 if (err)
3158 return err;
41ade00f 3159
b9454e83 3160 if (!key.p.key)
41ade00f
JB		 3161 return -EINVAL;
3162
41ade00f
JB		 3163 if (info->attrs[NL80211_ATTR_MAC])
3164 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3165
e31b8213
JB		 3166 if (key.type == -1) {
3167 if (mac_addr)
3168 key.type = NL80211_KEYTYPE_PAIRWISE;
3169 else
3170 key.type = NL80211_KEYTYPE_GROUP;
3171 }
3172
3173 /* for now */
3174 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3175 key.type != NL80211_KEYTYPE_GROUP)
3176 return -EINVAL;
3177
4c476991
JB		 3178 if (!rdev->ops->add_key)
3179 return -EOPNOTSUPP;
25e47c18 3180
e31b8213
JB		 3181 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3182 key.type == NL80211_KEYTYPE_PAIRWISE,
3183 mac_addr))
4c476991 3184 return -EINVAL;
41ade00f 3185
fffd0934
JB		 3186 wdev_lock(dev->ieee80211_ptr);
3187 err = nl80211_key_allowed(dev->ieee80211_ptr);
3188 if (!err)
e35e4d28
HG		 3189 err = rdev_add_key(rdev, dev, key.idx,
3190 key.type == NL80211_KEYTYPE_PAIRWISE,
3191 mac_addr, &key.p);
fffd0934 3192 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3193
41ade00f
JB		 3194 return err;
3195}
3196
3197static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3198{
4c476991 3199 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3200 int err;
4c476991 3201 struct net_device *dev = info->user_ptr[1];
41ade00f 3202 u8 *mac_addr = NULL;
b9454e83 3203 struct key_parse key;
41ade00f 3204
b9454e83
JB		 3205 err = nl80211_parse_key(info, &key);
3206 if (err)
3207 return err;
41ade00f
JB		 3208
3209 if (info->attrs[NL80211_ATTR_MAC])
3210 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3211
e31b8213
JB		 3212 if (key.type == -1) {
3213 if (mac_addr)
3214 key.type = NL80211_KEYTYPE_PAIRWISE;
3215 else
3216 key.type = NL80211_KEYTYPE_GROUP;
3217 }
3218
3219 /* for now */
3220 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3221 key.type != NL80211_KEYTYPE_GROUP)
3222 return -EINVAL;
3223
4c476991
JB		 3224 if (!rdev->ops->del_key)
3225 return -EOPNOTSUPP;
41ade00f 3226
fffd0934
JB		 3227 wdev_lock(dev->ieee80211_ptr);
3228 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3229
0fa7b391 3230 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3231 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3232 err = -ENOENT;
3233
fffd0934 3234 if (!err)
e35e4d28
HG		 3235 err = rdev_del_key(rdev, dev, key.idx,
3236 key.type == NL80211_KEYTYPE_PAIRWISE,
3237 mac_addr);
41ade00f 3238
3d23e349 3239#ifdef CONFIG_CFG80211_WEXT
08645126 3240 if (!err) {
b9454e83 3241 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3242 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3243 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3244 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3245 }
3246#endif
fffd0934 3247 wdev_unlock(dev->ieee80211_ptr);
08645126 3248
41ade00f
JB		 3249 return err;
3250}
3251
77765eaf
VT		 3252/* This function returns an error or the number of nested attributes */
3253static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3254{
3255 struct nlattr *attr;
3256 int n_entries = 0, tmp;
3257
3258 nla_for_each_nested(attr, nl_attr, tmp) {
3259 if (nla_len(attr) != ETH_ALEN)
3260 return -EINVAL;
3261
3262 n_entries++;
3263 }
3264
3265 return n_entries;
3266}
3267
3268/*
3269 * This function parses ACL information and allocates memory for ACL data.
3270 * On successful return, the calling function is responsible to free the
3271 * ACL buffer returned by this function.
3272 */
3273static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3274 struct genl_info *info)
3275{
3276 enum nl80211_acl_policy acl_policy;
3277 struct nlattr *attr;
3278 struct cfg80211_acl_data *acl;
3279 int i = 0, n_entries, tmp;
3280
3281 if (!wiphy->max_acl_mac_addrs)
3282 return ERR_PTR(-EOPNOTSUPP);
3283
3284 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3285 return ERR_PTR(-EINVAL);
3286
3287 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3288 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3289 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3290 return ERR_PTR(-EINVAL);
3291
3292 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3293 return ERR_PTR(-EINVAL);
3294
3295 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3296 if (n_entries < 0)
3297 return ERR_PTR(n_entries);
3298
3299 if (n_entries > wiphy->max_acl_mac_addrs)
3300 return ERR_PTR(-ENOTSUPP);
3301
3302 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3303 GFP_KERNEL);
3304 if (!acl)
3305 return ERR_PTR(-ENOMEM);
3306
3307 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3308 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3309 i++;
3310 }
3311
3312 acl->n_acl_entries = n_entries;
3313 acl->acl_policy = acl_policy;
3314
3315 return acl;
3316}
3317
3318static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3319{
3320 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3321 struct net_device *dev = info->user_ptr[1];
3322 struct cfg80211_acl_data *acl;
3323 int err;
3324
3325 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3326 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3327 return -EOPNOTSUPP;
3328
3329 if (!dev->ieee80211_ptr->beacon_interval)
3330 return -EINVAL;
3331
3332 acl = parse_acl_data(&rdev->wiphy, info);
3333 if (IS_ERR(acl))
3334 return PTR_ERR(acl);
3335
3336 err = rdev_set_mac_acl(rdev, dev, acl);
3337
3338 kfree(acl);
3339
3340 return err;
3341}
3342
a7c7fbff
PK		 3343static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
3344 u8 *rates, u8 rates_len)
3345{
3346 u8 i;
3347 u32 mask = 0;
3348
3349 for (i = 0; i < rates_len; i++) {
3350 int rate = (rates[i] & 0x7f) * 5;
3351 int ridx;
3352
3353 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
3354 struct ieee80211_rate *srate =
3355 &sband->bitrates[ridx];
3356 if (rate == srate->bitrate) {
3357 mask |= 1 << ridx;
3358 break;
3359 }
3360 }
3361 if (ridx == sband->n_bitrates)
3362 return 0; /* rate not found */
3363 }
3364
3365 return mask;
3366}
3367
3368static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
3369 u8 *rates, u8 rates_len,
3370 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
3371{
3372 u8 i;
3373
3374 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
3375
3376 for (i = 0; i < rates_len; i++) {
3377 int ridx, rbit;
3378
3379 ridx = rates[i] / 8;
3380 rbit = BIT(rates[i] % 8);
3381
3382 /* check validity */
3383 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
3384 return false;
3385
3386 /* check availability */
3387 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
3388 mcs[ridx] |= rbit;
3389 else
3390 return false;
3391 }
3392
3393 return true;
3394}
3395
3396static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
3397{
3398 u16 mcs_mask = 0;
3399
3400 switch (vht_mcs_map) {
3401 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
3402 break;
3403 case IEEE80211_VHT_MCS_SUPPORT_0_7:
3404 mcs_mask = 0x00FF;
3405 break;
3406 case IEEE80211_VHT_MCS_SUPPORT_0_8:
3407 mcs_mask = 0x01FF;
3408 break;
3409 case IEEE80211_VHT_MCS_SUPPORT_0_9:
3410 mcs_mask = 0x03FF;
3411 break;
3412 default:
3413 break;
3414 }
3415
3416 return mcs_mask;
3417}
3418
3419static void vht_build_mcs_mask(u16 vht_mcs_map,
3420 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
3421{
3422 u8 nss;
3423
3424 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
3425 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
3426 vht_mcs_map >>= 2;
3427 }
3428}
3429
3430static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
3431 struct nl80211_txrate_vht *txrate,
3432 u16 mcs[NL80211_VHT_NSS_MAX])
3433{
3434 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3435 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
3436 u8 i;
3437
3438 if (!sband->vht_cap.vht_supported)
3439 return false;
3440
3441 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
3442
3443 /* Build vht_mcs_mask from VHT capabilities */
3444 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
3445
3446 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3447 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
3448 mcs[i] = txrate->mcs[i];
3449 else
3450 return false;
3451 }
3452
3453 return true;
3454}
3455
3456static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
3457 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
3458 .len = NL80211_MAX_SUPP_RATES },
3459 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
3460 .len = NL80211_MAX_SUPP_HT_RATES },
3461 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
3462 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
3463};
3464
3465static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
3466 struct cfg80211_bitrate_mask *mask)
3467{
3468 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
3469 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3470 int rem, i;
3471 struct nlattr *tx_rates;
3472 struct ieee80211_supported_band *sband;
3473 u16 vht_tx_mcs_map;
3474
3475 memset(mask, 0, sizeof(*mask));
3476 /* Default to all rates enabled */
3477 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3478 sband = rdev->wiphy.bands[i];
3479
3480 if (!sband)
3481 continue;
3482
3483 mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
3484 memcpy(mask->control[i].ht_mcs,
3485 sband->ht_cap.mcs.rx_mask,
3486 sizeof(mask->control[i].ht_mcs));
3487
3488 if (!sband->vht_cap.vht_supported)
3489 continue;
3490
3491 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3492 vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
3493 }
3494
3495 /* if no rates are given set it back to the defaults */
3496 if (!info->attrs[NL80211_ATTR_TX_RATES])
3497 goto out;
3498
3499 /* The nested attribute uses enum nl80211_band as the index. This maps
3500 * directly to the enum nl80211_band values used in cfg80211.
3501 */
3502 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
3503 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
3504 enum nl80211_band band = nla_type(tx_rates);
3505 int err;
3506
3507 if (band < 0 || band >= NUM_NL80211_BANDS)
3508 return -EINVAL;
3509 sband = rdev->wiphy.bands[band];
3510 if (sband == NULL)
3511 return -EINVAL;
3512 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
3513 nla_len(tx_rates), nl80211_txattr_policy);
3514 if (err)
3515 return err;
3516 if (tb[NL80211_TXRATE_LEGACY]) {
3517 mask->control[band].legacy = rateset_to_mask(
3518 sband,
3519 nla_data(tb[NL80211_TXRATE_LEGACY]),
3520 nla_len(tb[NL80211_TXRATE_LEGACY]));
3521 if ((mask->control[band].legacy == 0) &&
3522 nla_len(tb[NL80211_TXRATE_LEGACY]))
3523 return -EINVAL;
3524 }
3525 if (tb[NL80211_TXRATE_HT]) {
3526 if (!ht_rateset_to_mask(
3527 sband,
3528 nla_data(tb[NL80211_TXRATE_HT]),
3529 nla_len(tb[NL80211_TXRATE_HT]),
3530 mask->control[band].ht_mcs))
3531 return -EINVAL;
3532 }
3533 if (tb[NL80211_TXRATE_VHT]) {
3534 if (!vht_set_mcs_mask(
3535 sband,
3536 nla_data(tb[NL80211_TXRATE_VHT]),
3537 mask->control[band].vht_mcs))
3538 return -EINVAL;
3539 }
3540 if (tb[NL80211_TXRATE_GI]) {
3541 mask->control[band].gi =
3542 nla_get_u8(tb[NL80211_TXRATE_GI]);
3543 if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
3544 return -EINVAL;
3545 }
3546
3547 if (mask->control[band].legacy == 0) {
3548 /* don't allow empty legacy rates if HT or VHT
3549 * are not even supported.
3550 */
3551 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
3552 rdev->wiphy.bands[band]->vht_cap.vht_supported))
3553 return -EINVAL;
3554
3555 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
3556 if (mask->control[band].ht_mcs[i])
3557 goto out;
3558
3559 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
3560 if (mask->control[band].vht_mcs[i])
3561 goto out;
3562
3563 /* legacy and mcs rates may not be both empty */
3564 return -EINVAL;
3565 }
3566 }
3567
3568out:
3569 return 0;
3570}
3571
8564e382
JB		 3572static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
3573 enum nl80211_band band,
3574 struct cfg80211_bitrate_mask *beacon_rate)
a7c7fbff 3575{
8564e382
JB		 3576 u32 count_ht, count_vht, i;
3577 u32 rate = beacon_rate->control[band].legacy;
a7c7fbff
PK		 3578
3579 /* Allow only one rate */
3580 if (hweight32(rate) > 1)
3581 return -EINVAL;
3582
3583 count_ht = 0;
3584 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
8564e382 3585 if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
a7c7fbff 3586 return -EINVAL;
8564e382 3587 } else if (beacon_rate->control[band].ht_mcs[i]) {
a7c7fbff
PK		 3588 count_ht++;
3589 if (count_ht > 1)
3590 return -EINVAL;
3591 }
3592 if (count_ht && rate)
3593 return -EINVAL;
3594 }
3595
3596 count_vht = 0;
3597 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8564e382 3598 if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
a7c7fbff 3599 return -EINVAL;
8564e382 3600 } else if (beacon_rate->control[band].vht_mcs[i]) {
a7c7fbff
PK		 3601 count_vht++;
3602 if (count_vht > 1)
3603 return -EINVAL;
3604 }
3605 if (count_vht && rate)
3606 return -EINVAL;
3607 }
3608
3609 if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
3610 return -EINVAL;
3611
8564e382
JB		 3612 if (rate &&
3613 !wiphy_ext_feature_isset(&rdev->wiphy,
3614 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
3615 return -EINVAL;
3616 if (count_ht &&
3617 !wiphy_ext_feature_isset(&rdev->wiphy,
3618 NL80211_EXT_FEATURE_BEACON_RATE_HT))
3619 return -EINVAL;
3620 if (count_vht &&
3621 !wiphy_ext_feature_isset(&rdev->wiphy,
3622 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
3623 return -EINVAL;
3624
a7c7fbff
PK		 3625 return 0;
3626}
3627
a1193be8 3628static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3629 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3630{
8860020e 3631 bool haveinfo = false;
ed1b6cc7 3632
a1193be8
SW		 3633 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3634 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3635 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3636 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3637 return -EINVAL;
3638
8860020e 3639 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3640
a1193be8
SW		 3641 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3642 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3643 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3644 if (!bcn->head_len)
3645 return -EINVAL;
3646 haveinfo = true;
ed1b6cc7
JB		 3647 }
3648
a1193be8
SW		 3649 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3650 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3651 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3652 haveinfo = true;
ed1b6cc7
JB		 3653 }
3654
4c476991
JB		 3655 if (!haveinfo)
3656 return -EINVAL;
3b85875a 3657
a1193be8
SW		 3658 if (attrs[NL80211_ATTR_IE]) {
3659 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3660 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3661 }
3662
a1193be8 3663 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3664 bcn->proberesp_ies =
a1193be8 3665 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3666 bcn->proberesp_ies_len =
a1193be8 3667 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3668 }
3669
a1193be8 3670 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3671 bcn->assocresp_ies =
a1193be8 3672 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3673 bcn->assocresp_ies_len =
a1193be8 3674 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3675 }
3676
a1193be8
SW		 3677 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3678 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3679 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3680 }
3681
8860020e
JB		 3682 return 0;
3683}
3684
46c1dd0c
FF		 3685static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3686 struct cfg80211_ap_settings *params)
3687{
3688 struct wireless_dev *wdev;
3689 bool ret = false;
3690
53873f13 3691 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
46c1dd0c
FF		 3692 if (wdev->iftype != NL80211_IFTYPE_AP &&
3693 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3694 continue;
3695
683b6d3b 3696 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3697 continue;
3698
683b6d3b 3699 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3700 ret = true;
3701 break;
3702 }
3703
46c1dd0c
FF		 3704 return ret;
3705}
3706
e39e5b5e
JM		 3707static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3708 enum nl80211_auth_type auth_type,
3709 enum nl80211_commands cmd)
3710{
3711 if (auth_type > NL80211_AUTHTYPE_MAX)
3712 return false;
3713
3714 switch (cmd) {
3715 case NL80211_CMD_AUTHENTICATE:
3716 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3717 auth_type == NL80211_AUTHTYPE_SAE)
3718 return false;
3719 return true;
3720 case NL80211_CMD_CONNECT:
3721 case NL80211_CMD_START_AP:
3722 /* SAE not supported yet */
3723 if (auth_type == NL80211_AUTHTYPE_SAE)
3724 return false;
3725 return true;
3726 default:
3727 return false;
3728 }
3729}
3730
8860020e
JB		 3731static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3732{
3733 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3734 struct net_device *dev = info->user_ptr[1];
3735 struct wireless_dev *wdev = dev->ieee80211_ptr;
3736 struct cfg80211_ap_settings params;
3737 int err;
3738
3739 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3740 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3741 return -EOPNOTSUPP;
3742
3743 if (!rdev->ops->start_ap)
3744 return -EOPNOTSUPP;
3745
3746 if (wdev->beacon_interval)
3747 return -EALREADY;
3748
3749 memset(&params, 0, sizeof(params));
3750
3751 /* these are required for START_AP */
3752 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3753 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3754 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3755 return -EINVAL;
3756
a1193be8 3757 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3758 if (err)
3759 return err;
3760
3761 params.beacon_interval =
3762 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3763 params.dtim_period =
3764 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3765
3766 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3767 if (err)
3768 return err;
3769
3770 /*
3771 * In theory, some of these attributes should be required here
3772 * but since they were not used when the command was originally
3773 * added, keep them optional for old user space programs to let
3774 * them continue to work with drivers that do not need the
3775 * additional information -- drivers must check!
3776 */
3777 if (info->attrs[NL80211_ATTR_SSID]) {
3778 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3779 params.ssid_len =
3780 nla_len(info->attrs[NL80211_ATTR_SSID]);
3781 if (params.ssid_len == 0 ||
3782 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3783 return -EINVAL;
3784 }
3785
3786 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3787 params.hidden_ssid = nla_get_u32(
3788 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3789 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3790 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3791 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3792 return -EINVAL;
3793 }
3794
3795 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3796
3797 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3798 params.auth_type = nla_get_u32(
3799 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3800 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3801 NL80211_CMD_START_AP))
8860020e
JB		 3802 return -EINVAL;
3803 } else
3804 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3805
3806 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3807 NL80211_MAX_NR_CIPHER_SUITES);
3808 if (err)
3809 return err;
3810
1b658f11
VT		 3811 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3812 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3813 return -EOPNOTSUPP;
3814 params.inactivity_timeout = nla_get_u16(
3815 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3816 }
3817
53cabad7
JB		 3818 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3819 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3820 return -EINVAL;
3821 params.p2p_ctwindow =
3822 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3823 if (params.p2p_ctwindow > 127)
3824 return -EINVAL;
3825 if (params.p2p_ctwindow != 0 &&
3826 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3827 return -EINVAL;
3828 }
3829
3830 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3831 u8 tmp;
3832
3833 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3834 return -EINVAL;
3835 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3836 if (tmp > 1)
3837 return -EINVAL;
3838 params.p2p_opp_ps = tmp;
3839 if (params.p2p_opp_ps != 0 &&
3840 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3841 return -EINVAL;
3842 }
3843
aa430da4 3844 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3845 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3846 if (err)
3847 return err;
3848 } else if (wdev->preset_chandef.chan) {
3849 params.chandef = wdev->preset_chandef;
46c1dd0c 3850 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3851 return -EINVAL;
3852
923b352f
AN		 3853 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3854 wdev->iftype))
aa430da4
JB		 3855 return -EINVAL;
3856
a7c7fbff
PK		 3857 if (info->attrs[NL80211_ATTR_TX_RATES]) {
3858 err = nl80211_parse_tx_bitrate_mask(info, &params.beacon_rate);
3859 if (err)
3860 return err;
3861
8564e382
JB		 3862 err = validate_beacon_tx_rate(rdev, params.chandef.chan->band,
3863 &params.beacon_rate);
a7c7fbff
PK		 3864 if (err)
3865 return err;
3866 }
3867
18998c38
EP		 3868 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3869 params.smps_mode =
3870 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3871 switch (params.smps_mode) {
3872 case NL80211_SMPS_OFF:
3873 break;
3874 case NL80211_SMPS_STATIC:
3875 if (!(rdev->wiphy.features &
3876 NL80211_FEATURE_STATIC_SMPS))
3877 return -EINVAL;
3878 break;
3879 case NL80211_SMPS_DYNAMIC:
3880 if (!(rdev->wiphy.features &
3881 NL80211_FEATURE_DYNAMIC_SMPS))
3882 return -EINVAL;
3883 break;
3884 default:
3885 return -EINVAL;
3886 }
3887 } else {
3888 params.smps_mode = NL80211_SMPS_OFF;
3889 }
3890
6e8ef842
PK		 3891 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
3892 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
3893 return -EOPNOTSUPP;
3894
4baf6bea
OO		 3895 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3896 params.acl = parse_acl_data(&rdev->wiphy, info);
3897 if (IS_ERR(params.acl))
3898 return PTR_ERR(params.acl);
3899 }
3900
c56589ed 3901 wdev_lock(wdev);
e35e4d28 3902 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3903 if (!err) {
683b6d3b 3904 wdev->preset_chandef = params.chandef;
8860020e 3905 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3906 wdev->chandef = params.chandef;
06e191e2
AQ		 3907 wdev->ssid_len = params.ssid_len;
3908 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3909 }
c56589ed 3910 wdev_unlock(wdev);
77765eaf
VT		 3911
3912 kfree(params.acl);
3913
56d1893d 3914 return err;
ed1b6cc7
JB		 3915}
3916
8860020e
JB		 3917static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3918{
3919 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3920 struct net_device *dev = info->user_ptr[1];
3921 struct wireless_dev *wdev = dev->ieee80211_ptr;
3922 struct cfg80211_beacon_data params;
3923 int err;
3924
3925 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3926 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3927 return -EOPNOTSUPP;
3928
3929 if (!rdev->ops->change_beacon)
3930 return -EOPNOTSUPP;
3931
3932 if (!wdev->beacon_interval)
3933 return -EINVAL;
3934
a1193be8 3935 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3936 if (err)
3937 return err;
3938
c56589ed
SW		 3939 wdev_lock(wdev);
3940 err = rdev_change_beacon(rdev, dev, &params);
3941 wdev_unlock(wdev);
3942
3943 return err;
8860020e
JB		 3944}
3945
3946static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3947{
4c476991
JB		 3948 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3949 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3950
7c8d5e03 3951 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3952}
3953
5727ef1b
JB		 3954static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3955 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3956 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3957 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3958 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3959 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3960 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3961};
3962
eccb8e8f 3963static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3964 enum nl80211_iftype iftype,
eccb8e8f 3965 struct station_parameters *params)
5727ef1b
JB		 3966{
3967 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3968 struct nlattr *nla;
5727ef1b
JB		 3969 int flag;
3970
eccb8e8f
JB		 3971 /*
3972 * Try parsing the new attribute first so userspace
3973 * can specify both for older kernels.
3974 */
3975 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3976 if (nla) {
3977 struct nl80211_sta_flag_update *sta_flags;
3978
3979 sta_flags = nla_data(nla);
3980 params->sta_flags_mask = sta_flags->mask;
3981 params->sta_flags_set = sta_flags->set;
77ee7c89 3982 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3983 if ((params->sta_flags_mask |
3984 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3985 return -EINVAL;
3986 return 0;
3987 }
3988
3989 /* if present, parse the old attribute */
5727ef1b 3990
eccb8e8f 3991 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3992 if (!nla)
3993 return 0;
3994
3995 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3996 nla, sta_flags_policy))
3997 return -EINVAL;
3998
bdd3ae3d
JB		 3999 /*
4000 * Only allow certain flags for interface types so that
4001 * other attributes are silently ignored. Remember that
4002 * this is backward compatibility code with old userspace
4003 * and shouldn't be hit in other cases anyway.
4004 */
4005 switch (iftype) {
4006 case NL80211_IFTYPE_AP:
4007 case NL80211_IFTYPE_AP_VLAN:
4008 case NL80211_IFTYPE_P2P_GO:
4009 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4010 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4011 BIT(NL80211_STA_FLAG_WME) |
4012 BIT(NL80211_STA_FLAG_MFP);
4013 break;
4014 case NL80211_IFTYPE_P2P_CLIENT:
4015 case NL80211_IFTYPE_STATION:
4016 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4017 BIT(NL80211_STA_FLAG_TDLS_PEER);
4018 break;
4019 case NL80211_IFTYPE_MESH_POINT:
4020 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4021 BIT(NL80211_STA_FLAG_MFP) |
4022 BIT(NL80211_STA_FLAG_AUTHORIZED);
4023 default:
4024 return -EINVAL;
4025 }
5727ef1b 4026
3383b5a6
JB		 4027 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
4028 if (flags[flag]) {
eccb8e8f 4029 params->sta_flags_set |= (1<<flag);
5727ef1b 4030
3383b5a6
JB		 4031 /* no longer support new API additions in old API */
4032 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
4033 return -EINVAL;
4034 }
4035 }
4036
5727ef1b
JB		 4037 return 0;
4038}
4039
c8dcfd8a
FF		 4040static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
4041 int attr)
4042{
4043 struct nlattr *rate;
8eb41c8d
VK		 4044 u32 bitrate;
4045 u16 bitrate_compat;
b51f3bee 4046 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 4047
4048 rate = nla_nest_start(msg, attr);
4049 if (!rate)
db9c64cf 4050 return false;
c8dcfd8a
FF		 4051
4052 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
4053 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 4054 /* report 16-bit bitrate only if we can */
4055 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 4056 if (bitrate > 0 &&
4057 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
4058 return false;
4059 if (bitrate_compat > 0 &&
4060 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
4061 return false;
4062
b51f3bee
JB		 4063 switch (info->bw) {
4064 case RATE_INFO_BW_5:
4065 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
4066 break;
4067 case RATE_INFO_BW_10:
4068 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
4069 break;
4070 default:
4071 WARN_ON(1);
4072 /* fall through */
4073 case RATE_INFO_BW_20:
4074 rate_flg = 0;
4075 break;
4076 case RATE_INFO_BW_40:
4077 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
4078 break;
4079 case RATE_INFO_BW_80:
4080 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
4081 break;
4082 case RATE_INFO_BW_160:
4083 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
4084 break;
4085 }
4086
4087 if (rate_flg && nla_put_flag(msg, rate_flg))
4088 return false;
4089
db9c64cf
JB		 4090 if (info->flags & RATE_INFO_FLAGS_MCS) {
4091 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
4092 return false;
db9c64cf
JB		 4093 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4094 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4095 return false;
4096 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
4097 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
4098 return false;
4099 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
4100 return false;
db9c64cf
JB		 4101 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4102 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4103 return false;
4104 }
c8dcfd8a
FF		 4105
4106 nla_nest_end(msg, rate);
4107 return true;
c8dcfd8a
FF		 4108}
4109
119363c7
FF		 4110static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
4111 int id)
4112{
4113 void *attr;
4114 int i = 0;
4115
4116 if (!mask)
4117 return true;
4118
4119 attr = nla_nest_start(msg, id);
4120 if (!attr)
4121 return false;
4122
4123 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
4124 if (!(mask & BIT(i)))
4125 continue;
4126
4127 if (nla_put_u8(msg, i, signal[i]))
4128 return false;
4129 }
4130
4131 nla_nest_end(msg, attr);
4132
4133 return true;
4134}
4135
cf5ead82
JB		 4136static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
4137 u32 seq, int flags,
66266b3a
JL		 4138 struct cfg80211_registered_device *rdev,
4139 struct net_device *dev,
98b62183 4140 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 4141{
4142 void *hdr;
f4263c98 4143 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 4144
cf5ead82 4145 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 4146 if (!hdr)
4147 return -1;
4148
9360ffd1
DM		 4149 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4150 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
4151 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
4152 goto nla_put_failure;
f5ea9120 4153
2ec600d6
LCC		 4154 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
4155 if (!sinfoattr)
fd5b74dc 4156 goto nla_put_failure;
319090bf
JB		 4157
4158#define PUT_SINFO(attr, memb, type) do { \
d686b920 4159 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
739960f1 4160 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
319090bf
JB		 4161 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
4162 sinfo->memb)) \
4163 goto nla_put_failure; \
4164 } while (0)
d686b920
JB		 4165#define PUT_SINFO_U64(attr, memb) do { \
4166 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4167 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
4168 sinfo->memb, NL80211_STA_INFO_PAD)) \
4169 goto nla_put_failure; \
4170 } while (0)
319090bf
JB		 4171
4172 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
4173 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
4174
4175 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
4176 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 4177 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 4178 (u32)sinfo->rx_bytes))
9360ffd1 4179 goto nla_put_failure;
319090bf
JB		 4180
4181 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
4182 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 4183 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 4184 (u32)sinfo->tx_bytes))
4185 goto nla_put_failure;
319090bf 4186
d686b920
JB		 4187 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
4188 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
319090bf
JB		 4189 PUT_SINFO(LLID, llid, u16);
4190 PUT_SINFO(PLID, plid, u16);
4191 PUT_SINFO(PLINK_STATE, plink_state, u8);
d686b920 4192 PUT_SINFO_U64(RX_DURATION, rx_duration);
319090bf 4193
66266b3a
JL		 4194 switch (rdev->wiphy.signal_type) {
4195 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 4196 PUT_SINFO(SIGNAL, signal, u8);
4197 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 4198 break;
4199 default:
4200 break;
4201 }
319090bf 4202 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 4203 if (!nl80211_put_signal(msg, sinfo->chains,
4204 sinfo->chain_signal,
4205 NL80211_STA_INFO_CHAIN_SIGNAL))
4206 goto nla_put_failure;
4207 }
319090bf 4208 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 4209 if (!nl80211_put_signal(msg, sinfo->chains,
4210 sinfo->chain_signal_avg,
4211 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
4212 goto nla_put_failure;
4213 }
319090bf 4214 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 4215 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
4216 NL80211_STA_INFO_TX_BITRATE))
4217 goto nla_put_failure;
4218 }
319090bf 4219 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 4220 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
4221 NL80211_STA_INFO_RX_BITRATE))
420e7fab 4222 goto nla_put_failure;
420e7fab 4223 }
319090bf
JB		 4224
4225 PUT_SINFO(RX_PACKETS, rx_packets, u32);
4226 PUT_SINFO(TX_PACKETS, tx_packets, u32);
4227 PUT_SINFO(TX_RETRIES, tx_retries, u32);
4228 PUT_SINFO(TX_FAILED, tx_failed, u32);
4229 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
4230 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
4231 PUT_SINFO(LOCAL_PM, local_pm, u32);
4232 PUT_SINFO(PEER_PM, peer_pm, u32);
4233 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
4234
4235 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 4236 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
4237 if (!bss_param)
4238 goto nla_put_failure;
4239
9360ffd1
DM		 4240 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
4241 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
4242 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
4243 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
4244 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
4245 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
4246 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
4247 sinfo->bss_param.dtim_period) ||
4248 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
4249 sinfo->bss_param.beacon_interval))
4250 goto nla_put_failure;
f4263c98
PS		 4251
4252 nla_nest_end(msg, bss_param);
4253 }
319090bf 4254 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 4255 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
4256 sizeof(struct nl80211_sta_flag_update),
4257 &sinfo->sta_flags))
4258 goto nla_put_failure;
319090bf 4259
d686b920
JB		 4260 PUT_SINFO_U64(T_OFFSET, t_offset);
4261 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
4262 PUT_SINFO_U64(BEACON_RX, rx_beacon);
a76b1942 4263 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 4264
4265#undef PUT_SINFO
d686b920 4266#undef PUT_SINFO_U64
6de39808
JB		 4267
4268 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
4269 struct nlattr *tidsattr;
4270 int tid;
4271
4272 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
4273 if (!tidsattr)
4274 goto nla_put_failure;
4275
4276 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
4277 struct cfg80211_tid_stats *tidstats;
4278 struct nlattr *tidattr;
4279
4280 tidstats = &sinfo->pertid[tid];
4281
4282 if (!tidstats->filled)
4283 continue;
4284
4285 tidattr = nla_nest_start(msg, tid + 1);
4286 if (!tidattr)
4287 goto nla_put_failure;
4288
d686b920 4289#define PUT_TIDVAL_U64(attr, memb) do { \
6de39808 4290 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
d686b920
JB		 4291 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
4292 tidstats->memb, NL80211_TID_STATS_PAD)) \
6de39808
JB		 4293 goto nla_put_failure; \
4294 } while (0)
4295
d686b920
JB		 4296 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4297 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4298 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4299 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
6de39808 4300
d686b920 4301#undef PUT_TIDVAL_U64
6de39808
JB		 4302 nla_nest_end(msg, tidattr);
4303 }
4304
4305 nla_nest_end(msg, tidsattr);
4306 }
4307
2ec600d6 4308 nla_nest_end(msg, sinfoattr);
fd5b74dc 4309
319090bf 4310 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 4311 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4312 sinfo->assoc_req_ies))
4313 goto nla_put_failure;
50d3dfb7 4314
053c095a
JB		 4315 genlmsg_end(msg, hdr);
4316 return 0;
fd5b74dc
JB		 4317
4318 nla_put_failure:
bc3ed28c
TG		 4319 genlmsg_cancel(msg, hdr);
4320 return -EMSGSIZE;
fd5b74dc
JB		 4321}
4322
2ec600d6 4323static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 4324 struct netlink_callback *cb)
2ec600d6 4325{
2ec600d6 4326 struct station_info sinfo;
1b8ec87a 4327 struct cfg80211_registered_device *rdev;
97990a06 4328 struct wireless_dev *wdev;
2ec600d6 4329 u8 mac_addr[ETH_ALEN];
97990a06 4330 int sta_idx = cb->args[2];
2ec600d6 4331 int err;
2ec600d6 4332
1b8ec87a 4333 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4334 if (err)
4335 return err;
bba95fef 4336
97990a06
JB		 4337 if (!wdev->netdev) {
4338 err = -EINVAL;
4339 goto out_err;
4340 }
4341
1b8ec87a 4342 if (!rdev->ops->dump_station) {
eec60b03 4343 err = -EOPNOTSUPP;
bba95fef
JB		 4344 goto out_err;
4345 }
4346
bba95fef 4347 while (1) {
f612cedf 4348 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 4349 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 4350 mac_addr, &sinfo);
bba95fef
JB		 4351 if (err == -ENOENT)
4352 break;
4353 if (err)
3b85875a 4354 goto out_err;
bba95fef 4355
cf5ead82 4356 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 4357 NETLINK_CB(cb->skb).portid,
bba95fef 4358 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 4359 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 4360 &sinfo) < 0)
4361 goto out;
4362
4363 sta_idx++;
4364 }
4365
bba95fef 4366 out:
97990a06 4367 cb->args[2] = sta_idx;
bba95fef 4368 err = skb->len;
bba95fef 4369 out_err:
1b8ec87a 4370 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 4371
4372 return err;
2ec600d6 4373}
fd5b74dc 4374
5727ef1b
JB		 4375static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4376{
4c476991
JB		 4377 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4378 struct net_device *dev = info->user_ptr[1];
2ec600d6 4379 struct station_info sinfo;
fd5b74dc
JB		 4380 struct sk_buff *msg;
4381 u8 *mac_addr = NULL;
4c476991 4382 int err;
fd5b74dc 4383
2ec600d6 4384 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 4385
4386 if (!info->attrs[NL80211_ATTR_MAC])
4387 return -EINVAL;
4388
4389 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4390
4c476991
JB		 4391 if (!rdev->ops->get_station)
4392 return -EOPNOTSUPP;
3b85875a 4393
e35e4d28 4394 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 4395 if (err)
4c476991 4396 return err;
2ec600d6 4397
fd2120ca 4398 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 4399 if (!msg)
4c476991 4400 return -ENOMEM;
fd5b74dc 4401
cf5ead82
JB		 4402 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4403 info->snd_portid, info->snd_seq, 0,
66266b3a 4404 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 4405 nlmsg_free(msg);
4406 return -ENOBUFS;
4407 }
3b85875a 4408
4c476991 4409 return genlmsg_reply(msg, info);
5727ef1b
JB		 4410}
4411
77ee7c89
JB		 4412int cfg80211_check_station_change(struct wiphy *wiphy,
4413 struct station_parameters *params,
4414 enum cfg80211_station_type statype)
4415{
e4208427
AB		 4416 if (params->listen_interval != -1 &&
4417 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4418 return -EINVAL;
e4208427 4419
17b94247
AB		 4420 if (params->support_p2p_ps != -1 &&
4421 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4422 return -EINVAL;
4423
c72e1140 4424 if (params->aid &&
e4208427
AB		 4425 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4426 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4427 return -EINVAL;
4428
4429 /* When you run into this, adjust the code below for the new flag */
4430 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4431
4432 switch (statype) {
eef941e6
TP		 4433 case CFG80211_STA_MESH_PEER_KERNEL:
4434 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4435 /*
4436 * No ignoring the TDLS flag here -- the userspace mesh
4437 * code doesn't have the bug of including TDLS in the
4438 * mask everywhere.
4439 */
4440 if (params->sta_flags_mask &
4441 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4442 BIT(NL80211_STA_FLAG_MFP) |
4443 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4444 return -EINVAL;
4445 break;
4446 case CFG80211_STA_TDLS_PEER_SETUP:
4447 case CFG80211_STA_TDLS_PEER_ACTIVE:
4448 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4449 return -EINVAL;
4450 /* ignore since it can't change */
4451 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4452 break;
4453 default:
4454 /* disallow mesh-specific things */
4455 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4456 return -EINVAL;
4457 if (params->local_pm)
4458 return -EINVAL;
4459 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4460 return -EINVAL;
4461 }
4462
4463 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4464 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4465 /* TDLS can't be set, ... */
4466 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4467 return -EINVAL;
4468 /*
4469 * ... but don't bother the driver with it. This works around
4470 * a hostapd/wpa_supplicant issue -- it always includes the
4471 * TLDS_PEER flag in the mask even for AP mode.
4472 */
4473 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4474 }
4475
47edb11b
AB		 4476 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4477 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4478 /* reject other things that can't change */
4479 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4480 return -EINVAL;
4481 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4482 return -EINVAL;
4483 if (params->supported_rates)
4484 return -EINVAL;
4485 if (params->ext_capab || params->ht_capa || params->vht_capa)
4486 return -EINVAL;
4487 }
4488
47edb11b
AB		 4489 if (statype != CFG80211_STA_AP_CLIENT &&
4490 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4491 if (params->vlan)
4492 return -EINVAL;
4493 }
4494
4495 switch (statype) {
4496 case CFG80211_STA_AP_MLME_CLIENT:
4497 /* Use this only for authorizing/unauthorizing a station */
4498 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4499 return -EOPNOTSUPP;
4500 break;
4501 case CFG80211_STA_AP_CLIENT:
47edb11b 4502 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4503 /* accept only the listed bits */
4504 if (params->sta_flags_mask &
4505 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4506 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4507 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4508 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4509 BIT(NL80211_STA_FLAG_WME) |
4510 BIT(NL80211_STA_FLAG_MFP)))
4511 return -EINVAL;
4512
4513 /* but authenticated/associated only if driver handles it */
4514 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4515 params->sta_flags_mask &
4516 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4517 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4518 return -EINVAL;
4519 break;
4520 case CFG80211_STA_IBSS:
4521 case CFG80211_STA_AP_STA:
4522 /* reject any changes other than AUTHORIZED */
4523 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4524 return -EINVAL;
4525 break;
4526 case CFG80211_STA_TDLS_PEER_SETUP:
4527 /* reject any changes other than AUTHORIZED or WME */
4528 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4529 BIT(NL80211_STA_FLAG_WME)))
4530 return -EINVAL;
4531 /* force (at least) rates when authorizing */
4532 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4533 !params->supported_rates)
4534 return -EINVAL;
4535 break;
4536 case CFG80211_STA_TDLS_PEER_ACTIVE:
4537 /* reject any changes */
4538 return -EINVAL;
eef941e6 4539 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4540 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4541 return -EINVAL;
4542 break;
eef941e6 4543 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4544 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4545 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4546 return -EINVAL;
4547 break;
4548 }
4549
4550 return 0;
4551}
4552EXPORT_SYMBOL(cfg80211_check_station_change);
4553
5727ef1b 4554/*
c258d2de 4555 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4556 */
80b99899
JB		 4557static struct net_device *get_vlan(struct genl_info *info,
4558 struct cfg80211_registered_device *rdev)
5727ef1b 4559{
463d0183 4560 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4561 struct net_device *v;
4562 int ret;
4563
4564 if (!vlanattr)
4565 return NULL;
4566
4567 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4568 if (!v)
4569 return ERR_PTR(-ENODEV);
4570
4571 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4572 ret = -EINVAL;
4573 goto error;
5727ef1b 4574 }
80b99899 4575
77ee7c89
JB		 4576 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4577 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4578 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4579 ret = -EINVAL;
4580 goto error;
4581 }
4582
80b99899
JB		 4583 if (!netif_running(v)) {
4584 ret = -ENETDOWN;
4585 goto error;
4586 }
4587
4588 return v;
4589 error:
4590 dev_put(v);
4591 return ERR_PTR(ret);
5727ef1b
JB		 4592}
4593
94e860f1
JB		 4594static const struct nla_policy
4595nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4596 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4597 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4598};
4599
ff276691
JB		 4600static int nl80211_parse_sta_wme(struct genl_info *info,
4601 struct station_parameters *params)
df881293 4602{
df881293
JM		 4603 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4604 struct nlattr *nla;
4605 int err;
4606
df881293
JM		 4607 /* parse WME attributes if present */
4608 if (!info->attrs[NL80211_ATTR_STA_WME])
4609 return 0;
4610
4611 nla = info->attrs[NL80211_ATTR_STA_WME];
4612 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4613 nl80211_sta_wme_policy);
4614 if (err)
4615 return err;
4616
4617 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4618 params->uapsd_queues = nla_get_u8(
4619 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4620 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4621 return -EINVAL;
4622
4623 if (tb[NL80211_STA_WME_MAX_SP])
4624 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4625
4626 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4627 return -EINVAL;
4628
4629 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4630
4631 return 0;
4632}
4633
c01fc9ad
SD		 4634static int nl80211_parse_sta_channel_info(struct genl_info *info,
4635 struct station_parameters *params)
4636{
4637 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4638 params->supported_channels =
4639 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4640 params->supported_channels_len =
4641 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4642 /*
4643 * Need to include at least one (first channel, number of
4644 * channels) tuple for each subband, and must have proper
4645 * tuples for the rest of the data as well.
4646 */
4647 if (params->supported_channels_len < 2)
4648 return -EINVAL;
4649 if (params->supported_channels_len % 2)
4650 return -EINVAL;
4651 }
4652
4653 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4654 params->supported_oper_classes =
4655 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4656 params->supported_oper_classes_len =
4657 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4658 /*
4659 * The value of the Length field of the Supported Operating
4660 * Classes element is between 2 and 253.
4661 */
4662 if (params->supported_oper_classes_len < 2 ||
4663 params->supported_oper_classes_len > 253)
4664 return -EINVAL;
4665 }
4666 return 0;
4667}
4668
ff276691
JB		 4669static int nl80211_set_station_tdls(struct genl_info *info,
4670 struct station_parameters *params)
4671{
c01fc9ad 4672 int err;
ff276691 4673 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4674 if (info->attrs[NL80211_ATTR_PEER_AID])
4675 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4676 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4677 params->ht_capa =
4678 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4679 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4680 params->vht_capa =
4681 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4682
c01fc9ad
SD		 4683 err = nl80211_parse_sta_channel_info(info, params);
4684 if (err)
4685 return err;
4686
ff276691
JB		 4687 return nl80211_parse_sta_wme(info, params);
4688}
4689
5727ef1b
JB		 4690static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4691{
4c476991 4692 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4693 struct net_device *dev = info->user_ptr[1];
5727ef1b 4694 struct station_parameters params;
77ee7c89
JB		 4695 u8 *mac_addr;
4696 int err;
5727ef1b
JB		 4697
4698 memset(&params, 0, sizeof(params));
4699
77ee7c89
JB		 4700 if (!rdev->ops->change_station)
4701 return -EOPNOTSUPP;
4702
e4208427
AB		 4703 /*
4704 * AID and listen_interval properties can be set only for unassociated
4705 * station. Include these parameters here and will check them in
4706 * cfg80211_check_station_change().
4707 */
a9bc31e4
AB		 4708 if (info->attrs[NL80211_ATTR_STA_AID])
4709 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4710
4711 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4712 params.listen_interval =
4713 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4714 else
4715 params.listen_interval = -1;
5727ef1b 4716
17b94247
AB		 4717 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4718 u8 tmp;
4719
4720 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4721 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4722 return -EINVAL;
4723
4724 params.support_p2p_ps = tmp;
4725 } else {
4726 params.support_p2p_ps = -1;
4727 }
4728
5727ef1b
JB		 4729 if (!info->attrs[NL80211_ATTR_MAC])
4730 return -EINVAL;
4731
4732 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4733
4734 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4735 params.supported_rates =
4736 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4737 params.supported_rates_len =
4738 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4739 }
4740
9d62a986
JM		 4741 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4742 params.capability =
4743 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4744 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4745 }
4746
4747 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4748 params.ext_capab =
4749 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4750 params.ext_capab_len =
4751 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4752 }
4753
bdd3ae3d 4754 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4755 return -EINVAL;
4756
f8bacc21 4757 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4758 params.plink_action =
f8bacc21
JB		 4759 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4760 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4761 return -EINVAL;
4762 }
2ec600d6 4763
f8bacc21 4764 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4765 params.plink_state =
f8bacc21
JB		 4766 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4767 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4768 return -EINVAL;
7d27a0ba
MH		 4769 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4770 params.peer_aid = nla_get_u16(
4771 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4772 if (params.peer_aid > IEEE80211_MAX_AID)
4773 return -EINVAL;
4774 }
f8bacc21
JB		 4775 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4776 }
9c3990aa 4777
3b1c5a53
MP		 4778 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4779 enum nl80211_mesh_power_mode pm = nla_get_u32(
4780 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4781
4782 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4783 pm > NL80211_MESH_POWER_MAX)
4784 return -EINVAL;
4785
4786 params.local_pm = pm;
4787 }
4788
77ee7c89
JB		 4789 /* Include parameters for TDLS peer (will check later) */
4790 err = nl80211_set_station_tdls(info, &params);
4791 if (err)
4792 return err;
4793
4794 params.vlan = get_vlan(info, rdev);
4795 if (IS_ERR(params.vlan))
4796 return PTR_ERR(params.vlan);
4797
a97f4424
JB		 4798 switch (dev->ieee80211_ptr->iftype) {
4799 case NL80211_IFTYPE_AP:
4800 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4801 case NL80211_IFTYPE_P2P_GO:
074ac8df 4802 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4803 case NL80211_IFTYPE_STATION:
267335d6 4804 case NL80211_IFTYPE_ADHOC:
a97f4424 4805 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4806 break;
4807 default:
77ee7c89
JB		 4808 err = -EOPNOTSUPP;
4809 goto out_put_vlan;
034d655e
JB		 4810 }
4811
77ee7c89 4812 /* driver will call cfg80211_check_station_change() */
e35e4d28 4813 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4814
77ee7c89 4815 out_put_vlan:
5727ef1b
JB		 4816 if (params.vlan)
4817 dev_put(params.vlan);
3b85875a 4818
5727ef1b
JB		 4819 return err;
4820}
4821
4822static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4823{
4c476991 4824 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4825 int err;
4c476991 4826 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4827 struct station_parameters params;
4828 u8 *mac_addr = NULL;
bda95eb1
JB		 4829 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4830 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 4831
4832 memset(&params, 0, sizeof(params));
4833
984c311b
JB		 4834 if (!rdev->ops->add_station)
4835 return -EOPNOTSUPP;
4836
5727ef1b
JB		 4837 if (!info->attrs[NL80211_ATTR_MAC])
4838 return -EINVAL;
4839
5727ef1b
JB		 4840 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4841 return -EINVAL;
4842
4843 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4844 return -EINVAL;
4845
5e4b6f56
JM		 4846 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4847 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4848 return -EINVAL;
4849
5727ef1b
JB		 4850 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4851 params.supported_rates =
4852 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4853 params.supported_rates_len =
4854 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4855 params.listen_interval =
4856 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4857
17b94247
AB		 4858 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4859 u8 tmp;
4860
4861 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4862 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4863 return -EINVAL;
4864
4865 params.support_p2p_ps = tmp;
4866 } else {
4867 /*
4868 * if not specified, assume it's supported for P2P GO interface,
4869 * and is NOT supported for AP interface
4870 */
4871 params.support_p2p_ps =
4872 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
4873 }
4874
3d124ea2 4875 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4876 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4877 else
4878 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4879 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4880 return -EINVAL;
51b50fbe 4881
9d62a986
JM		 4882 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4883 params.capability =
4884 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4885 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4886 }
4887
4888 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4889 params.ext_capab =
4890 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4891 params.ext_capab_len =
4892 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4893 }
4894
36aedc90
JM		 4895 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4896 params.ht_capa =
4897 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4898
f461be3e
MP		 4899 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4900 params.vht_capa =
4901 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4902
60f4a7b1
MK		 4903 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4904 params.opmode_notif_used = true;
4905 params.opmode_notif =
4906 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4907 }
4908
f8bacc21 4909 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4910 params.plink_action =
f8bacc21
JB		 4911 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4912 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4913 return -EINVAL;
4914 }
96b78dff 4915
c01fc9ad
SD		 4916 err = nl80211_parse_sta_channel_info(info, &params);
4917 if (err)
4918 return err;
4919
ff276691
JB		 4920 err = nl80211_parse_sta_wme(info, &params);
4921 if (err)
4922 return err;
bdd90d5e 4923
bdd3ae3d 4924 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4925 return -EINVAL;
4926
496fcc29
JB		 4927 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4928 * as userspace might just pass through the capabilities from the IEs
4929 * directly, rather than enforcing this restriction and returning an
4930 * error in this case.
4931 */
4932 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4933 params.ht_capa = NULL;
4934 params.vht_capa = NULL;
4935 }
4936
77ee7c89
JB		 4937 /* When you run into this, adjust the code below for the new flag */
4938 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4939
bdd90d5e
JB		 4940 switch (dev->ieee80211_ptr->iftype) {
4941 case NL80211_IFTYPE_AP:
4942 case NL80211_IFTYPE_AP_VLAN:
4943 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4944 /* ignore WME attributes if iface/sta is not capable */
4945 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4946 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4947 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4948
bdd90d5e 4949 /* TDLS peers cannot be added */
3d124ea2
JM		 4950 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4951 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4952 return -EINVAL;
bdd90d5e
JB		 4953 /* but don't bother the driver with it */
4954 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4955
d582cffb
JB		 4956 /* allow authenticated/associated only if driver handles it */
4957 if (!(rdev->wiphy.features &
4958 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 4959 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 4960 return -EINVAL;
4961
bda95eb1
JB		 4962 /* Older userspace, or userspace wanting to be compatible with
4963 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
4964 * and assoc flags in the mask, but assumes the station will be
4965 * added as associated anyway since this was the required driver
4966 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
4967 * introduced.
4968 * In order to not bother drivers with this quirk in the API
4969 * set the flags in both the mask and set for new stations in
4970 * this case.
4971 */
4972 if (!(params.sta_flags_mask & auth_assoc)) {
4973 params.sta_flags_mask |= auth_assoc;
4974 params.sta_flags_set |= auth_assoc;
4975 }
4976
bdd90d5e
JB		 4977 /* must be last in here for error handling */
4978 params.vlan = get_vlan(info, rdev);
4979 if (IS_ERR(params.vlan))
4980 return PTR_ERR(params.vlan);
4981 break;
4982 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4983 /* ignore uAPSD data */
4984 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4985
d582cffb
JB		 4986 /* associated is disallowed */
4987 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4988 return -EINVAL;
bdd90d5e 4989 /* TDLS peers cannot be added */
3d124ea2
JM		 4990 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4991 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4992 return -EINVAL;
4993 break;
4994 case NL80211_IFTYPE_STATION:
93d08f0b 4995 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4996 /* ignore uAPSD data */
4997 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4998
77ee7c89
JB		 4999 /* these are disallowed */
5000 if (params.sta_flags_mask &
5001 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
5002 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 5003 return -EINVAL;
bdd90d5e
JB		 5004 /* Only TDLS peers can be added */
5005 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
5006 return -EINVAL;
5007 /* Can only add if TDLS ... */
5008 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
5009 return -EOPNOTSUPP;
5010 /* ... with external setup is supported */
5011 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
5012 return -EOPNOTSUPP;
77ee7c89
JB		 5013 /*
5014 * Older wpa_supplicant versions always mark the TDLS peer
5015 * as authorized, but it shouldn't yet be.
5016 */
5017 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 5018 break;
5019 default:
5020 return -EOPNOTSUPP;
c75786c9
EP		 5021 }
5022
bdd90d5e 5023 /* be aware of params.vlan when changing code here */
5727ef1b 5024
e35e4d28 5025 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 5026
5727ef1b
JB		 5027 if (params.vlan)
5028 dev_put(params.vlan);
5727ef1b
JB		 5029 return err;
5030}
5031
5032static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
5033{
4c476991
JB		 5034 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5035 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 5036 struct station_del_parameters params;
5037
5038 memset(&params, 0, sizeof(params));
5727ef1b
JB		 5039
5040 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 5041 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 5042
e80cf853 5043 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 5044 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 5045 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5046 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5047 return -EINVAL;
5727ef1b 5048
4c476991
JB		 5049 if (!rdev->ops->del_station)
5050 return -EOPNOTSUPP;
3b85875a 5051
98856866
JM		 5052 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
5053 params.subtype =
5054 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
5055 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
5056 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
5057 return -EINVAL;
5058 } else {
5059 /* Default to Deauthentication frame */
5060 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
5061 }
5062
5063 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
5064 params.reason_code =
5065 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5066 if (params.reason_code == 0)
5067 return -EINVAL; /* 0 is reserved */
5068 } else {
5069 /* Default to reason code 2 */
5070 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
5071 }
5072
89c771e5 5073 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 5074}
5075
15e47304 5076static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 5077 int flags, struct net_device *dev,
5078 u8 *dst, u8 *next_hop,
5079 struct mpath_info *pinfo)
5080{
5081 void *hdr;
5082 struct nlattr *pinfoattr;
5083
1ef4c850 5084 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 5085 if (!hdr)
5086 return -1;
5087
9360ffd1
DM		 5088 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5089 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
5090 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
5091 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
5092 goto nla_put_failure;
f5ea9120 5093
2ec600d6
LCC		 5094 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
5095 if (!pinfoattr)
5096 goto nla_put_failure;
9360ffd1
DM		 5097 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
5098 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
5099 pinfo->frame_qlen))
5100 goto nla_put_failure;
5101 if (((pinfo->filled & MPATH_INFO_SN) &&
5102 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
5103 ((pinfo->filled & MPATH_INFO_METRIC) &&
5104 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
5105 pinfo->metric)) ||
5106 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
5107 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
5108 pinfo->exptime)) ||
5109 ((pinfo->filled & MPATH_INFO_FLAGS) &&
5110 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
5111 pinfo->flags)) ||
5112 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
5113 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
5114 pinfo->discovery_timeout)) ||
5115 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
5116 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
5117 pinfo->discovery_retries)))
5118 goto nla_put_failure;
2ec600d6
LCC		 5119
5120 nla_nest_end(msg, pinfoattr);
5121
053c095a
JB		 5122 genlmsg_end(msg, hdr);
5123 return 0;
2ec600d6
LCC		 5124
5125 nla_put_failure:
bc3ed28c
TG		 5126 genlmsg_cancel(msg, hdr);
5127 return -EMSGSIZE;
2ec600d6
LCC		 5128}
5129
5130static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 5131 struct netlink_callback *cb)
2ec600d6 5132{
2ec600d6 5133 struct mpath_info pinfo;
1b8ec87a 5134 struct cfg80211_registered_device *rdev;
97990a06 5135 struct wireless_dev *wdev;
2ec600d6
LCC		 5136 u8 dst[ETH_ALEN];
5137 u8 next_hop[ETH_ALEN];
97990a06 5138 int path_idx = cb->args[2];
2ec600d6 5139 int err;
2ec600d6 5140
1b8ec87a 5141 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5142 if (err)
5143 return err;
bba95fef 5144
1b8ec87a 5145 if (!rdev->ops->dump_mpath) {
eec60b03 5146 err = -EOPNOTSUPP;
bba95fef
JB		 5147 goto out_err;
5148 }
5149
97990a06 5150 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 5151 err = -EOPNOTSUPP;
0448b5fc 5152 goto out_err;
eec60b03
JM		 5153 }
5154
bba95fef 5155 while (1) {
1b8ec87a 5156 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 5157 next_hop, &pinfo);
bba95fef 5158 if (err == -ENOENT)
2ec600d6 5159 break;
bba95fef 5160 if (err)
3b85875a 5161 goto out_err;
2ec600d6 5162
15e47304 5163 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 5164 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5165 wdev->netdev, dst, next_hop,
bba95fef
JB		 5166 &pinfo) < 0)
5167 goto out;
2ec600d6 5168
bba95fef 5169 path_idx++;
2ec600d6 5170 }
2ec600d6 5171
bba95fef 5172 out:
97990a06 5173 cb->args[2] = path_idx;
bba95fef 5174 err = skb->len;
bba95fef 5175 out_err:
1b8ec87a 5176 nl80211_finish_wdev_dump(rdev);
bba95fef 5177 return err;
2ec600d6
LCC		 5178}
5179
5180static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
5181{
4c476991 5182 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 5183 int err;
4c476991 5184 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5185 struct mpath_info pinfo;
5186 struct sk_buff *msg;
5187 u8 *dst = NULL;
5188 u8 next_hop[ETH_ALEN];
5189
5190 memset(&pinfo, 0, sizeof(pinfo));
5191
5192 if (!info->attrs[NL80211_ATTR_MAC])
5193 return -EINVAL;
5194
5195 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5196
4c476991
JB		 5197 if (!rdev->ops->get_mpath)
5198 return -EOPNOTSUPP;
2ec600d6 5199
4c476991
JB		 5200 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5201 return -EOPNOTSUPP;
eec60b03 5202
e35e4d28 5203 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 5204 if (err)
4c476991 5205 return err;
2ec600d6 5206
fd2120ca 5207 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 5208 if (!msg)
4c476991 5209 return -ENOMEM;
2ec600d6 5210
15e47304 5211 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 5212 dev, dst, next_hop, &pinfo) < 0) {
5213 nlmsg_free(msg);
5214 return -ENOBUFS;
5215 }
3b85875a 5216
4c476991 5217 return genlmsg_reply(msg, info);
2ec600d6
LCC		 5218}
5219
5220static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
5221{
4c476991
JB		 5222 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5223 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5224 u8 *dst = NULL;
5225 u8 *next_hop = NULL;
5226
5227 if (!info->attrs[NL80211_ATTR_MAC])
5228 return -EINVAL;
5229
5230 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5231 return -EINVAL;
5232
5233 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5234 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5235
4c476991
JB		 5236 if (!rdev->ops->change_mpath)
5237 return -EOPNOTSUPP;
35a8efe1 5238
4c476991
JB		 5239 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5240 return -EOPNOTSUPP;
2ec600d6 5241
e35e4d28 5242 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 5243}
4c476991 5244
2ec600d6
LCC		 5245static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
5246{
4c476991
JB		 5247 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5248 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5249 u8 *dst = NULL;
5250 u8 *next_hop = NULL;
5251
5252 if (!info->attrs[NL80211_ATTR_MAC])
5253 return -EINVAL;
5254
5255 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5256 return -EINVAL;
5257
5258 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5259 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5260
4c476991
JB		 5261 if (!rdev->ops->add_mpath)
5262 return -EOPNOTSUPP;
35a8efe1 5263
4c476991
JB		 5264 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5265 return -EOPNOTSUPP;
2ec600d6 5266
e35e4d28 5267 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 5268}
5269
5270static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
5271{
4c476991
JB		 5272 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5273 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 5274 u8 *dst = NULL;
5275
5276 if (info->attrs[NL80211_ATTR_MAC])
5277 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5278
4c476991
JB		 5279 if (!rdev->ops->del_mpath)
5280 return -EOPNOTSUPP;
3b85875a 5281
e35e4d28 5282 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 5283}
5284
66be7d2b
HR		 5285static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
5286{
5287 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5288 int err;
5289 struct net_device *dev = info->user_ptr[1];
5290 struct mpath_info pinfo;
5291 struct sk_buff *msg;
5292 u8 *dst = NULL;
5293 u8 mpp[ETH_ALEN];
5294
5295 memset(&pinfo, 0, sizeof(pinfo));
5296
5297 if (!info->attrs[NL80211_ATTR_MAC])
5298 return -EINVAL;
5299
5300 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5301
5302 if (!rdev->ops->get_mpp)
5303 return -EOPNOTSUPP;
5304
5305 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5306 return -EOPNOTSUPP;
5307
5308 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5309 if (err)
5310 return err;
5311
5312 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5313 if (!msg)
5314 return -ENOMEM;
5315
5316 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5317 dev, dst, mpp, &pinfo) < 0) {
5318 nlmsg_free(msg);
5319 return -ENOBUFS;
5320 }
5321
5322 return genlmsg_reply(msg, info);
5323}
5324
5325static int nl80211_dump_mpp(struct sk_buff *skb,
5326 struct netlink_callback *cb)
5327{
5328 struct mpath_info pinfo;
5329 struct cfg80211_registered_device *rdev;
5330 struct wireless_dev *wdev;
5331 u8 dst[ETH_ALEN];
5332 u8 mpp[ETH_ALEN];
5333 int path_idx = cb->args[2];
5334 int err;
5335
5336 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5337 if (err)
5338 return err;
5339
5340 if (!rdev->ops->dump_mpp) {
5341 err = -EOPNOTSUPP;
5342 goto out_err;
5343 }
5344
5345 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5346 err = -EOPNOTSUPP;
5347 goto out_err;
5348 }
5349
5350 while (1) {
5351 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5352 mpp, &pinfo);
5353 if (err == -ENOENT)
5354 break;
5355 if (err)
5356 goto out_err;
5357
5358 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5359 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5360 wdev->netdev, dst, mpp,
5361 &pinfo) < 0)
5362 goto out;
5363
5364 path_idx++;
5365 }
5366
5367 out:
5368 cb->args[2] = path_idx;
5369 err = skb->len;
5370 out_err:
5371 nl80211_finish_wdev_dump(rdev);
5372 return err;
5373}
5374
9f1ba906
JM		 5375static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5376{
4c476991
JB		 5377 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5378 struct net_device *dev = info->user_ptr[1];
c56589ed 5379 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 5380 struct bss_parameters params;
c56589ed 5381 int err;
9f1ba906
JM		 5382
5383 memset(&params, 0, sizeof(params));
5384 /* default to not changing parameters */
5385 params.use_cts_prot = -1;
5386 params.use_short_preamble = -1;
5387 params.use_short_slot_time = -1;
fd8aaaf3 5388 params.ap_isolate = -1;
50b12f59 5389 params.ht_opmode = -1;
53cabad7
JB		 5390 params.p2p_ctwindow = -1;
5391 params.p2p_opp_ps = -1;
9f1ba906
JM		 5392
5393 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5394 params.use_cts_prot =
5395 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5396 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5397 params.use_short_preamble =
5398 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5399 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5400 params.use_short_slot_time =
5401 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 5402 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5403 params.basic_rates =
5404 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5405 params.basic_rates_len =
5406 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5407 }
fd8aaaf3
FF		 5408 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5409 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 5410 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5411 params.ht_opmode =
5412 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 5413
53cabad7
JB		 5414 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5415 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5416 return -EINVAL;
5417 params.p2p_ctwindow =
5418 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5419 if (params.p2p_ctwindow < 0)
5420 return -EINVAL;
5421 if (params.p2p_ctwindow != 0 &&
5422 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5423 return -EINVAL;
5424 }
5425
5426 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5427 u8 tmp;
5428
5429 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5430 return -EINVAL;
5431 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5432 if (tmp > 1)
5433 return -EINVAL;
5434 params.p2p_opp_ps = tmp;
5435 if (params.p2p_opp_ps &&
5436 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5437 return -EINVAL;
5438 }
5439
4c476991
JB		 5440 if (!rdev->ops->change_bss)
5441 return -EOPNOTSUPP;
9f1ba906 5442
074ac8df 5443 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5444 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5445 return -EOPNOTSUPP;
3b85875a 5446
c56589ed
SW		 5447 wdev_lock(wdev);
5448 err = rdev_change_bss(rdev, dev, &params);
5449 wdev_unlock(wdev);
5450
5451 return err;
9f1ba906
JM		 5452}
5453
b2e1b302
LR		 5454static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5455{
b2e1b302 5456 char *data = NULL;
05050753 5457 bool is_indoor;
57b5ce07 5458 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5459 u32 owner_nlportid;
5460
80778f18
LR		 5461 /*
5462 * You should only get this when cfg80211 hasn't yet initialized
5463 * completely when built-in to the kernel right between the time
5464 * window between nl80211_init() and regulatory_init(), if that is
5465 * even possible.
5466 */
458f4f9e 5467 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5468 return -EINPROGRESS;
80778f18 5469
57b5ce07
LR		 5470 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5471 user_reg_hint_type =
5472 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5473 else
5474 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5475
5476 switch (user_reg_hint_type) {
5477 case NL80211_USER_REG_HINT_USER:
5478 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5479 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5480 return -EINVAL;
5481
5482 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5483 return regulatory_hint_user(data, user_reg_hint_type);
5484 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5485 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5486 owner_nlportid = info->snd_portid;
5487 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5488 } else {
5489 owner_nlportid = 0;
5490 is_indoor = true;
5491 }
5492
5493 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5494 default:
5495 return -EINVAL;
5496 }
b2e1b302
LR		 5497}
5498
24bdd9f4 5499static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5500 struct genl_info *info)
93da9cc1 5501{
4c476991 5502 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5503 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5504 struct wireless_dev *wdev = dev->ieee80211_ptr;
5505 struct mesh_config cur_params;
5506 int err = 0;
93da9cc1 5507 void *hdr;
5508 struct nlattr *pinfoattr;
5509 struct sk_buff *msg;
5510
29cbe68c
JB		 5511 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5512 return -EOPNOTSUPP;
5513
24bdd9f4 5514 if (!rdev->ops->get_mesh_config)
4c476991 5515 return -EOPNOTSUPP;
f3f92586 5516
29cbe68c
JB		 5517 wdev_lock(wdev);
5518 /* If not connected, get default parameters */
5519 if (!wdev->mesh_id_len)
5520 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5521 else
e35e4d28 5522 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5523 wdev_unlock(wdev);
5524
93da9cc1 5525 if (err)
4c476991 5526 return err;
93da9cc1 5527
5528 /* Draw up a netlink message to send back */
fd2120ca 5529 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5530 if (!msg)
5531 return -ENOMEM;
15e47304 5532 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5533 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5534 if (!hdr)
efe1cf0c 5535 goto out;
24bdd9f4 5536 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5537 if (!pinfoattr)
5538 goto nla_put_failure;
9360ffd1
DM		 5539 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5540 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5541 cur_params.dot11MeshRetryTimeout) ||
5542 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5543 cur_params.dot11MeshConfirmTimeout) ||
5544 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5545 cur_params.dot11MeshHoldingTimeout) ||
5546 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5547 cur_params.dot11MeshMaxPeerLinks) ||
5548 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5549 cur_params.dot11MeshMaxRetries) ||
5550 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5551 cur_params.dot11MeshTTL) ||
5552 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5553 cur_params.element_ttl) ||
5554 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5555 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5556 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5557 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5558 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5559 cur_params.dot11MeshHWMPmaxPREQretries) ||
5560 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5561 cur_params.path_refresh_time) ||
5562 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5563 cur_params.min_discovery_timeout) ||
5564 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5565 cur_params.dot11MeshHWMPactivePathTimeout) ||
5566 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5567 cur_params.dot11MeshHWMPpreqMinInterval) ||
5568 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5569 cur_params.dot11MeshHWMPperrMinInterval) ||
5570 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5571 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5572 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5573 cur_params.dot11MeshHWMPRootMode) ||
5574 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5575 cur_params.dot11MeshHWMPRannInterval) ||
5576 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5577 cur_params.dot11MeshGateAnnouncementProtocol) ||
5578 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5579 cur_params.dot11MeshForwarding) ||
5580 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5581 cur_params.rssi_threshold) ||
5582 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5583 cur_params.ht_opmode) ||
5584 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5585 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5586 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5587 cur_params.dot11MeshHWMProotInterval) ||
5588 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5589 cur_params.dot11MeshHWMPconfirmationInterval) ||
5590 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5591 cur_params.power_mode) ||
5592 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5593 cur_params.dot11MeshAwakeWindowDuration) ||
5594 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5595 cur_params.plink_timeout))
9360ffd1 5596 goto nla_put_failure;
93da9cc1 5597 nla_nest_end(msg, pinfoattr);
5598 genlmsg_end(msg, hdr);
4c476991 5599 return genlmsg_reply(msg, info);
93da9cc1 5600
3b85875a 5601 nla_put_failure:
93da9cc1 5602 genlmsg_cancel(msg, hdr);
efe1cf0c 5603 out:
d080e275 5604 nlmsg_free(msg);
4c476991 5605 return -ENOBUFS;
93da9cc1 5606}
5607
b54452b0 5608static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5609 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5610 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5611 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5612 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5613 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5614 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5615 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5616 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5617 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5618 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5619 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5620 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5621 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5622 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5623 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5624 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5625 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5626 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5627 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5628 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5629 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5630 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5631 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5632 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5633 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5634 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5635 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5636 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5637};
5638
c80d545d
JC		 5639static const struct nla_policy
5640 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5641 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5642 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5643 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5644 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5645 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5646 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5647 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5648 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5649 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5650};
5651
f151d9db
AB		 5652static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5653{
5654 u8 val = nla_get_u8(nla);
5655 if (val < min || val > max)
5656 return -EINVAL;
5657 *out = val;
5658 return 0;
5659}
5660
5661static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5662{
5663 u8 val = nla_get_u8(nla);
5664 if (val < min || val > max)
5665 return -EINVAL;
5666 *out = val;
5667 return 0;
5668}
5669
5670static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5671{
5672 u16 val = nla_get_u16(nla);
5673 if (val < min || val > max)
5674 return -EINVAL;
5675 *out = val;
5676 return 0;
5677}
5678
5679static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5680{
5681 u32 val = nla_get_u32(nla);
5682 if (val < min || val > max)
5683 return -EINVAL;
5684 *out = val;
5685 return 0;
5686}
5687
5688static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5689{
5690 s32 val = nla_get_s32(nla);
5691 if (val < min || val > max)
5692 return -EINVAL;
5693 *out = val;
5694 return 0;
5695}
5696
ff9a71af
JB		 5697static int nl80211_check_power_mode(const struct nlattr *nla,
5698 enum nl80211_mesh_power_mode min,
5699 enum nl80211_mesh_power_mode max,
5700 enum nl80211_mesh_power_mode *out)
5701{
5702 u32 val = nla_get_u32(nla);
5703 if (val < min || val > max)
5704 return -EINVAL;
5705 *out = val;
5706 return 0;
5707}
5708
24bdd9f4 5709static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5710 struct mesh_config *cfg,
5711 u32 *mask_out)
93da9cc1 5712{
93da9cc1 5713 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5714 u32 mask = 0;
9757235f 5715 u16 ht_opmode;
93da9cc1 5716
ea54fba2
MP		 5717#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5718do { \
5719 if (tb[attr]) { \
f151d9db 5720 if (fn(tb[attr], min, max, &cfg->param)) \
ea54fba2 5721 return -EINVAL; \
ea54fba2
MP		 5722 mask |= (1 << (attr - 1)); \
5723 } \
5724} while (0)
bd90fdcc 5725
24bdd9f4 5726 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5727 return -EINVAL;
5728 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5729 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5730 nl80211_meshconf_params_policy))
93da9cc1 5731 return -EINVAL;
5732
93da9cc1 5733 /* This makes sure that there aren't more than 32 mesh config
5734 * parameters (otherwise our bitfield scheme would not work.) */
5735 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5736
5737 /* Fill in the params struct */
ea54fba2 5738 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea 5739 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
f151d9db 5740 nl80211_check_u16);
ea54fba2 5741 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea 5742 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
f151d9db 5743 nl80211_check_u16);
ea54fba2 5744 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea 5745 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
f151d9db 5746 nl80211_check_u16);
ea54fba2 5747 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea 5748 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
f151d9db 5749 nl80211_check_u16);
ea54fba2 5750 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea 5751 mask, NL80211_MESHCONF_MAX_RETRIES,
f151d9db 5752 nl80211_check_u8);
ea54fba2 5753 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
f151d9db 5754 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
ea54fba2 5755 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea 5756 mask, NL80211_MESHCONF_ELEMENT_TTL,
f151d9db 5757 nl80211_check_u8);
ea54fba2 5758 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea 5759 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
f151d9db 5760 nl80211_check_bool);
ea54fba2
MP		 5761 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5762 1, 255, mask,
a4f606ea 5763 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
f151d9db 5764 nl80211_check_u32);
ea54fba2 5765 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea 5766 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
f151d9db 5767 nl80211_check_u8);
ea54fba2 5768 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea 5769 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
f151d9db 5770 nl80211_check_u32);
ea54fba2 5771 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea 5772 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
f151d9db 5773 nl80211_check_u16);
ea54fba2
MP		 5774 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5775 1, 65535, mask,
a4f606ea 5776 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
f151d9db 5777 nl80211_check_u32);
93da9cc1 5778 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5779 1, 65535, mask,
5780 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
f151d9db 5781 nl80211_check_u16);
dca7e943 5782 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5783 1, 65535, mask,
5784 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
f151d9db 5785 nl80211_check_u16);
93da9cc1 5786 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5787 dot11MeshHWMPnetDiameterTraversalTime,
5788 1, 65535, mask,
a4f606ea 5789 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
f151d9db 5790 nl80211_check_u16);
ea54fba2
MP		 5791 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5792 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
f151d9db 5793 nl80211_check_u8);
ea54fba2
MP		 5794 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5795 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
f151d9db 5796 nl80211_check_u16);
63c5723b 5797 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5798 dot11MeshGateAnnouncementProtocol, 0, 1,
5799 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
f151d9db 5800 nl80211_check_bool);
ea54fba2 5801 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea 5802 mask, NL80211_MESHCONF_FORWARDING,
f151d9db 5803 nl80211_check_bool);
83374fe9 5804 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5805 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
f151d9db 5806 nl80211_check_s32);
9757235f
MH		 5807 /*
5808 * Check HT operation mode based on
5809 * IEEE 802.11 2012 8.4.2.59 HT Operation element.
5810 */
5811 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
5812 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
5813
5814 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
5815 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
5816 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5817 return -EINVAL;
5818
5819 if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
5820 (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5821 return -EINVAL;
5822
5823 switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
5824 case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
5825 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
5826 if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
5827 return -EINVAL;
5828 break;
5829 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
5830 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
5831 if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5832 return -EINVAL;
5833 break;
5834 }
5835 cfg->ht_opmode = ht_opmode;
5836 }
ac1073a6 5837 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5838 1, 65535, mask,
ac1073a6 5839 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
f151d9db 5840 nl80211_check_u32);
ea54fba2 5841 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5842 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
f151d9db 5843 nl80211_check_u16);
728b19e5 5844 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5845 dot11MeshHWMPconfirmationInterval,
5846 1, 65535, mask,
728b19e5 5847 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
f151d9db 5848 nl80211_check_u16);
3b1c5a53
MP		 5849 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5850 NL80211_MESH_POWER_ACTIVE,
5851 NL80211_MESH_POWER_MAX,
5852 mask, NL80211_MESHCONF_POWER_MODE,
ff9a71af 5853 nl80211_check_power_mode);
3b1c5a53
MP		 5854 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5855 0, 65535, mask,
f151d9db 5856 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
31f909a2 5857 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538 5858 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
f151d9db 5859 nl80211_check_u32);
bd90fdcc
JB		 5860 if (mask_out)
5861 *mask_out = mask;
c80d545d 5862
bd90fdcc
JB		 5863 return 0;
5864
5865#undef FILL_IN_MESH_PARAM_IF_SET
5866}
5867
c80d545d
JC		 5868static int nl80211_parse_mesh_setup(struct genl_info *info,
5869 struct mesh_setup *setup)
5870{
bb2798d4 5871 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5872 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5873
5874 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5875 return -EINVAL;
5876 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5877 info->attrs[NL80211_ATTR_MESH_SETUP],
5878 nl80211_mesh_setup_params_policy))
5879 return -EINVAL;
5880
d299a1f2
JC		 5881 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5882 setup->sync_method =
5883 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5884 IEEE80211_SYNC_METHOD_VENDOR :
5885 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5886
c80d545d
JC		 5887 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5888 setup->path_sel_proto =
5889 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5890 IEEE80211_PATH_PROTOCOL_VENDOR :
5891 IEEE80211_PATH_PROTOCOL_HWMP;
5892
5893 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5894 setup->path_metric =
5895 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5896 IEEE80211_PATH_METRIC_VENDOR :
5897 IEEE80211_PATH_METRIC_AIRTIME;
5898
581a8b0f 5899 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5900 struct nlattr *ieattr =
581a8b0f 5901 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5902 if (!is_valid_ie_attr(ieattr))
5903 return -EINVAL;
581a8b0f
JC		 5904 setup->ie = nla_data(ieattr);
5905 setup->ie_len = nla_len(ieattr);
c80d545d 5906 }
bb2798d4
TP		 5907 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5908 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5909 return -EINVAL;
5910 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5911 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5912 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5913 if (setup->is_secure)
5914 setup->user_mpm = true;
c80d545d 5915
6e16d90b
CT		 5916 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5917 if (!setup->user_mpm)
5918 return -EINVAL;
5919 setup->auth_id =
5920 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5921 }
5922
c80d545d
JC		 5923 return 0;
5924}
5925
24bdd9f4 5926static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5927 struct genl_info *info)
bd90fdcc
JB		 5928{
5929 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5930 struct net_device *dev = info->user_ptr[1];
29cbe68c 5931 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5932 struct mesh_config cfg;
5933 u32 mask;
5934 int err;
5935
29cbe68c
JB		 5936 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5937 return -EOPNOTSUPP;
5938
24bdd9f4 5939 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5940 return -EOPNOTSUPP;
5941
24bdd9f4 5942 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5943 if (err)
5944 return err;
5945
29cbe68c
JB		 5946 wdev_lock(wdev);
5947 if (!wdev->mesh_id_len)
5948 err = -ENOLINK;
5949
5950 if (!err)
e35e4d28 5951 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5952
5953 wdev_unlock(wdev);
5954
5955 return err;
93da9cc1 5956}
5957
ad30ca2c
AN		 5958static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5959 struct sk_buff *msg)
f130347c 5960{
f130347c
LR		 5961 struct nlattr *nl_reg_rules;
5962 unsigned int i;
f130347c 5963
458f4f9e
JB		 5964 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5965 (regdom->dfs_region &&
5966 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5967 goto nla_put_failure;
458f4f9e 5968
f130347c
LR		 5969 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5970 if (!nl_reg_rules)
ad30ca2c 5971 goto nla_put_failure;
f130347c 5972
458f4f9e 5973 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5974 struct nlattr *nl_reg_rule;
5975 const struct ieee80211_reg_rule *reg_rule;
5976 const struct ieee80211_freq_range *freq_range;
5977 const struct ieee80211_power_rule *power_rule;
97524820 5978 unsigned int max_bandwidth_khz;
f130347c 5979
458f4f9e 5980 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5981 freq_range = &reg_rule->freq_range;
5982 power_rule = &reg_rule->power_rule;
5983
5984 nl_reg_rule = nla_nest_start(msg, i);
5985 if (!nl_reg_rule)
ad30ca2c 5986 goto nla_put_failure;
f130347c 5987
97524820
JD		 5988 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5989 if (!max_bandwidth_khz)
5990 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5991 reg_rule);
5992
9360ffd1
DM		 5993 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5994 reg_rule->flags) ||
5995 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5996 freq_range->start_freq_khz) ||
5997 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5998 freq_range->end_freq_khz) ||
5999 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 6000 max_bandwidth_khz) ||
9360ffd1
DM		 6001 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
6002 power_rule->max_antenna_gain) ||
6003 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 6004 power_rule->max_eirp) ||
6005 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
6006 reg_rule->dfs_cac_ms))
ad30ca2c 6007 goto nla_put_failure;
f130347c
LR		 6008
6009 nla_nest_end(msg, nl_reg_rule);
6010 }
6011
6012 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 6013 return 0;
6014
6015nla_put_failure:
6016 return -EMSGSIZE;
6017}
6018
6019static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
6020{
6021 const struct ieee80211_regdomain *regdom = NULL;
6022 struct cfg80211_registered_device *rdev;
6023 struct wiphy *wiphy = NULL;
6024 struct sk_buff *msg;
6025 void *hdr;
6026
6027 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6028 if (!msg)
6029 return -ENOBUFS;
6030
6031 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6032 NL80211_CMD_GET_REG);
6033 if (!hdr)
6034 goto put_failure;
6035
6036 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 6037 bool self_managed;
6038
ad30ca2c
AN		 6039 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6040 if (IS_ERR(rdev)) {
6041 nlmsg_free(msg);
6042 return PTR_ERR(rdev);
6043 }
6044
6045 wiphy = &rdev->wiphy;
1bdd716c
AN		 6046 self_managed = wiphy->regulatory_flags &
6047 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 6048 regdom = get_wiphy_regdom(wiphy);
6049
1bdd716c
AN		 6050 /* a self-managed-reg device must have a private regdom */
6051 if (WARN_ON(!regdom && self_managed)) {
6052 nlmsg_free(msg);
6053 return -EINVAL;
6054 }
6055
ad30ca2c
AN		 6056 if (regdom &&
6057 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6058 goto nla_put_failure;
6059 }
6060
6061 if (!wiphy && reg_last_request_cell_base() &&
6062 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6063 NL80211_USER_REG_HINT_CELL_BASE))
6064 goto nla_put_failure;
6065
6066 rcu_read_lock();
6067
6068 if (!regdom)
6069 regdom = rcu_dereference(cfg80211_regdomain);
6070
6071 if (nl80211_put_regdom(regdom, msg))
6072 goto nla_put_failure_rcu;
6073
6074 rcu_read_unlock();
f130347c
LR		 6075
6076 genlmsg_end(msg, hdr);
5fe231e8 6077 return genlmsg_reply(msg, info);
f130347c 6078
458f4f9e
JB		 6079nla_put_failure_rcu:
6080 rcu_read_unlock();
f130347c
LR		 6081nla_put_failure:
6082 genlmsg_cancel(msg, hdr);
efe1cf0c 6083put_failure:
d080e275 6084 nlmsg_free(msg);
5fe231e8 6085 return -EMSGSIZE;
f130347c
LR		 6086}
6087
ad30ca2c
AN		 6088static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
6089 u32 seq, int flags, struct wiphy *wiphy,
6090 const struct ieee80211_regdomain *regdom)
6091{
6092 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6093 NL80211_CMD_GET_REG);
6094
6095 if (!hdr)
6096 return -1;
6097
6098 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6099
6100 if (nl80211_put_regdom(regdom, msg))
6101 goto nla_put_failure;
6102
6103 if (!wiphy && reg_last_request_cell_base() &&
6104 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6105 NL80211_USER_REG_HINT_CELL_BASE))
6106 goto nla_put_failure;
6107
6108 if (wiphy &&
6109 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6110 goto nla_put_failure;
6111
1bdd716c
AN		 6112 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
6113 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
6114 goto nla_put_failure;
6115
053c095a
JB		 6116 genlmsg_end(msg, hdr);
6117 return 0;
ad30ca2c
AN		 6118
6119nla_put_failure:
6120 genlmsg_cancel(msg, hdr);
6121 return -EMSGSIZE;
6122}
6123
6124static int nl80211_get_reg_dump(struct sk_buff *skb,
6125 struct netlink_callback *cb)
6126{
6127 const struct ieee80211_regdomain *regdom = NULL;
6128 struct cfg80211_registered_device *rdev;
6129 int err, reg_idx, start = cb->args[2];
6130
6131 rtnl_lock();
6132
6133 if (cfg80211_regdomain && start == 0) {
6134 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6135 NLM_F_MULTI, NULL,
6136 rtnl_dereference(cfg80211_regdomain));
6137 if (err < 0)
6138 goto out_err;
6139 }
6140
6141 /* the global regdom is idx 0 */
6142 reg_idx = 1;
6143 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
6144 regdom = get_wiphy_regdom(&rdev->wiphy);
6145 if (!regdom)
6146 continue;
6147
6148 if (++reg_idx <= start)
6149 continue;
6150
6151 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6152 NLM_F_MULTI, &rdev->wiphy, regdom);
6153 if (err < 0) {
6154 reg_idx--;
6155 break;
6156 }
6157 }
6158
6159 cb->args[2] = reg_idx;
6160 err = skb->len;
6161out_err:
6162 rtnl_unlock();
6163 return err;
6164}
6165
b6863036
JB		 6166#ifdef CONFIG_CFG80211_CRDA_SUPPORT
6167static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
6168 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6169 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6170 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6171 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6172 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6173 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6174 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
6175};
6176
6177static int parse_reg_rule(struct nlattr *tb[],
6178 struct ieee80211_reg_rule *reg_rule)
6179{
6180 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
6181 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
6182
6183 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
6184 return -EINVAL;
6185 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
6186 return -EINVAL;
6187 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
6188 return -EINVAL;
6189 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6190 return -EINVAL;
6191 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6192 return -EINVAL;
6193
6194 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
6195
6196 freq_range->start_freq_khz =
6197 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
6198 freq_range->end_freq_khz =
6199 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
6200 freq_range->max_bandwidth_khz =
6201 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
6202
6203 power_rule->max_eirp =
6204 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
6205
6206 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
6207 power_rule->max_antenna_gain =
6208 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
6209
6210 if (tb[NL80211_ATTR_DFS_CAC_TIME])
6211 reg_rule->dfs_cac_ms =
6212 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
6213
6214 return 0;
6215}
6216
b2e1b302
LR		 6217static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
6218{
6219 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
6220 struct nlattr *nl_reg_rule;
ea372c54
JB		 6221 char *alpha2;
6222 int rem_reg_rules, r;
b2e1b302 6223 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 6224 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 6225 struct ieee80211_regdomain *rd;
b2e1b302
LR		 6226
6227 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6228 return -EINVAL;
6229
6230 if (!info->attrs[NL80211_ATTR_REG_RULES])
6231 return -EINVAL;
6232
6233 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6234
8b60b078
LR		 6235 if (info->attrs[NL80211_ATTR_DFS_REGION])
6236 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
6237
b2e1b302 6238 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6239 rem_reg_rules) {
b2e1b302
LR		 6240 num_rules++;
6241 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 6242 return -EINVAL;
b2e1b302
LR		 6243 }
6244
e438768f
LR		 6245 if (!reg_is_valid_request(alpha2))
6246 return -EINVAL;
6247
b2e1b302 6248 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 6249 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 6250
6251 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 6252 if (!rd)
6253 return -ENOMEM;
b2e1b302
LR		 6254
6255 rd->n_reg_rules = num_rules;
6256 rd->alpha2[0] = alpha2[0];
6257 rd->alpha2[1] = alpha2[1];
6258
8b60b078
LR		 6259 /*
6260 * Disable DFS master mode if the DFS region was
6261 * not supported or known on this kernel.
6262 */
6263 if (reg_supported_dfs_region(dfs_region))
6264 rd->dfs_region = dfs_region;
6265
b2e1b302 6266 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 6267 rem_reg_rules) {
ae811e21
JB		 6268 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
6269 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
6270 reg_rule_policy);
6271 if (r)
6272 goto bad_reg;
b2e1b302
LR		 6273 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
6274 if (r)
6275 goto bad_reg;
6276
6277 rule_idx++;
6278
d0e18f83
LR		 6279 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
6280 r = -EINVAL;
b2e1b302 6281 goto bad_reg;
d0e18f83 6282 }
b2e1b302
LR		 6283 }
6284
06627990
JB		 6285 /* set_regdom takes ownership of rd */
6286 return set_regdom(rd, REGD_SOURCE_CRDA);
d2372b31 6287 bad_reg:
b2e1b302 6288 kfree(rd);
d0e18f83 6289 return r;
b2e1b302 6290}
b6863036 6291#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 6292
83f5e2cf
JB		 6293static int validate_scan_freqs(struct nlattr *freqs)
6294{
6295 struct nlattr *attr1, *attr2;
6296 int n_channels = 0, tmp1, tmp2;
6297
6298 nla_for_each_nested(attr1, freqs, tmp1) {
6299 n_channels++;
6300 /*
6301 * Some hardware has a limited channel list for
6302 * scanning, and it is pretty much nonsensical
6303 * to scan for a channel twice, so disallow that
6304 * and don't require drivers to check that the
6305 * channel list they get isn't longer than what
6306 * they can scan, as long as they can scan all
6307 * the channels they registered at once.
6308 */
6309 nla_for_each_nested(attr2, freqs, tmp2)
6310 if (attr1 != attr2 &&
6311 nla_get_u32(attr1) == nla_get_u32(attr2))
6312 return 0;
6313 }
6314
6315 return n_channels;
6316}
6317
57fbcce3 6318static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
38de03d2 6319{
57fbcce3 6320 return b < NUM_NL80211_BANDS && wiphy->bands[b];
38de03d2
AS		 6321}
6322
6323static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6324 struct cfg80211_bss_selection *bss_select)
6325{
6326 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6327 struct nlattr *nest;
6328 int err;
6329 bool found = false;
6330 int i;
6331
6332 /* only process one nested attribute */
6333 nest = nla_data(nla);
6334 if (!nla_ok(nest, nla_len(nest)))
6335 return -EINVAL;
6336
6337 err = nla_parse(attr, NL80211_BSS_SELECT_ATTR_MAX, nla_data(nest),
6338 nla_len(nest), nl80211_bss_select_policy);
6339 if (err)
6340 return err;
6341
6342 /* only one attribute may be given */
6343 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6344 if (attr[i]) {
6345 if (found)
6346 return -EINVAL;
6347 found = true;
6348 }
6349 }
6350
6351 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6352
6353 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6354 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6355
6356 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6357 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6358 bss_select->param.band_pref =
6359 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6360 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6361 return -EINVAL;
6362 }
6363
6364 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6365 struct nl80211_bss_select_rssi_adjust *adj_param;
6366
6367 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6368 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6369 bss_select->param.adjust.band = adj_param->band;
6370 bss_select->param.adjust.delta = adj_param->delta;
6371 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6372 return -EINVAL;
6373 }
6374
6375 /* user-space did not provide behaviour attribute */
6376 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6377 return -EINVAL;
6378
6379 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6380 return -EINVAL;
6381
6382 return 0;
6383}
6384
ad2b26ab
JB		 6385static int nl80211_parse_random_mac(struct nlattr **attrs,
6386 u8 *mac_addr, u8 *mac_addr_mask)
6387{
6388 int i;
6389
6390 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 6391 eth_zero_addr(mac_addr);
6392 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 6393 mac_addr[0] = 0x2;
6394 mac_addr_mask[0] = 0x3;
6395
6396 return 0;
6397 }
6398
6399 /* need both or none */
6400 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6401 return -EINVAL;
6402
6403 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6404 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6405
6406 /* don't allow or configure an mcast address */
6407 if (!is_multicast_ether_addr(mac_addr_mask) ||
6408 is_multicast_ether_addr(mac_addr))
6409 return -EINVAL;
6410
6411 /*
6412 * allow users to pass a MAC address that has bits set outside
6413 * of the mask, but don't bother drivers with having to deal
6414 * with such bits
6415 */
6416 for (i = 0; i < ETH_ALEN; i++)
6417 mac_addr[i] &= mac_addr_mask[i];
6418
6419 return 0;
6420}
6421
2a519311
JB		 6422static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6423{
4c476991 6424 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 6425 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 6426 struct cfg80211_scan_request *request;
2a519311
JB		 6427 struct nlattr *attr;
6428 struct wiphy *wiphy;
83f5e2cf 6429 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 6430 size_t ie_len;
2a519311 6431
f4a11bb0
JB		 6432 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6433 return -EINVAL;
6434
79c97e97 6435 wiphy = &rdev->wiphy;
2a519311 6436
4c476991
JB		 6437 if (!rdev->ops->scan)
6438 return -EOPNOTSUPP;
2a519311 6439
f9d15d16 6440 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 6441 err = -EBUSY;
6442 goto unlock;
6443 }
2a519311
JB		 6444
6445 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 6446 n_channels = validate_scan_freqs(
6447 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 6448 if (!n_channels) {
6449 err = -EINVAL;
6450 goto unlock;
6451 }
2a519311 6452 } else {
bdfbec2d 6453 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 6454 }
6455
6456 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6457 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6458 n_ssids++;
6459
f9f47529
JB		 6460 if (n_ssids > wiphy->max_scan_ssids) {
6461 err = -EINVAL;
6462 goto unlock;
6463 }
2a519311 6464
70692ad2
JM		 6465 if (info->attrs[NL80211_ATTR_IE])
6466 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6467 else
6468 ie_len = 0;
6469
f9f47529
JB		 6470 if (ie_len > wiphy->max_scan_ie_len) {
6471 err = -EINVAL;
6472 goto unlock;
6473 }
18a83659 6474
2a519311 6475 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 6476 + sizeof(*request->ssids) * n_ssids
6477 + sizeof(*request->channels) * n_channels
70692ad2 6478 + ie_len, GFP_KERNEL);
f9f47529
JB		 6479 if (!request) {
6480 err = -ENOMEM;
6481 goto unlock;
6482 }
2a519311 6483
2a519311 6484 if (n_ssids)
5ba63533 6485 request->ssids = (void *)&request->channels[n_channels];
2a519311 6486 request->n_ssids = n_ssids;
70692ad2 6487 if (ie_len) {
13874e4b 6488 if (n_ssids)
70692ad2
JM		 6489 request->ie = (void *)(request->ssids + n_ssids);
6490 else
6491 request->ie = (void *)(request->channels + n_channels);
6492 }
2a519311 6493
584991dc 6494 i = 0;
2a519311
JB		 6495 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6496 /* user specified, bail out if channel not found */
2a519311 6497 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6498 struct ieee80211_channel *chan;
6499
6500 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6501
6502 if (!chan) {
2a519311
JB		 6503 err = -EINVAL;
6504 goto out_free;
6505 }
584991dc
JB		 6506
6507 /* ignore disabled channels */
6508 if (chan->flags & IEEE80211_CHAN_DISABLED)
6509 continue;
6510
6511 request->channels[i] = chan;
2a519311
JB		 6512 i++;
6513 }
6514 } else {
57fbcce3 6515 enum nl80211_band band;
34850ab2 6516
2a519311 6517 /* all channels */
57fbcce3 6518 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2a519311 6519 int j;
7a087e74 6520
2a519311
JB		 6521 if (!wiphy->bands[band])
6522 continue;
6523 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6524 struct ieee80211_channel *chan;
6525
6526 chan = &wiphy->bands[band]->channels[j];
6527
6528 if (chan->flags & IEEE80211_CHAN_DISABLED)
6529 continue;
6530
6531 request->channels[i] = chan;
2a519311
JB		 6532 i++;
6533 }
6534 }
6535 }
6536
584991dc
JB		 6537 if (!i) {
6538 err = -EINVAL;
6539 goto out_free;
6540 }
6541
6542 request->n_channels = i;
6543
2a519311 6544 i = 0;
13874e4b 6545 if (n_ssids) {
2a519311 6546 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6547 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6548 err = -EINVAL;
6549 goto out_free;
6550 }
57a27e1d 6551 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6552 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6553 i++;
6554 }
6555 }
6556
70692ad2
JM		 6557 if (info->attrs[NL80211_ATTR_IE]) {
6558 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6559 memcpy((void *)request->ie,
6560 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6561 request->ie_len);
6562 }
6563
57fbcce3 6564 for (i = 0; i < NUM_NL80211_BANDS; i++)
a401d2bb
JB		 6565 if (wiphy->bands[i])
6566 request->rates[i] =
6567 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6568
6569 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6570 nla_for_each_nested(attr,
6571 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6572 tmp) {
57fbcce3 6573 enum nl80211_band band = nla_type(attr);
34850ab2 6574
57fbcce3 6575 if (band < 0 || band >= NUM_NL80211_BANDS) {
34850ab2
JB		 6576 err = -EINVAL;
6577 goto out_free;
6578 }
1b09cd82
FF		 6579
6580 if (!wiphy->bands[band])
6581 continue;
6582
34850ab2
JB		 6583 err = ieee80211_get_ratemask(wiphy->bands[band],
6584 nla_data(attr),
6585 nla_len(attr),
6586 &request->rates[band]);
6587 if (err)
6588 goto out_free;
6589 }
6590 }
6591
1d76250b
AS		 6592 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6593 if (!wiphy_ext_feature_isset(wiphy,
6594 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6595 err = -EOPNOTSUPP;
6596 goto out_free;
6597 }
6598
6599 request->duration =
6600 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6601 request->duration_mandatory =
6602 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6603 }
6604
46856bbf 6605 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 6606 request->flags = nla_get_u32(
6607 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6608 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6609 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6610 err = -EOPNOTSUPP;
6611 goto out_free;
6612 }
ad2b26ab
JB		 6613
6614 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6615 if (!(wiphy->features &
6616 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6617 err = -EOPNOTSUPP;
6618 goto out_free;
6619 }
6620
6621 if (wdev->current_bss) {
6622 err = -EOPNOTSUPP;
6623 goto out_free;
6624 }
6625
6626 err = nl80211_parse_random_mac(info->attrs,
6627 request->mac_addr,
6628 request->mac_addr_mask);
6629 if (err)
6630 goto out_free;
6631 }
46856bbf 6632 }
ed473771 6633
e9f935e3
RM		 6634 request->no_cck =
6635 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6636
818965d3
JM		 6637 if (info->attrs[NL80211_ATTR_MAC])
6638 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6639 ETH_ALEN);
6640 else
6641 eth_broadcast_addr(request->bssid);
6642
fd014284 6643 request->wdev = wdev;
79c97e97 6644 request->wiphy = &rdev->wiphy;
15d6030b 6645 request->scan_start = jiffies;
2a519311 6646
79c97e97 6647 rdev->scan_req = request;
e35e4d28 6648 err = rdev_scan(rdev, request);
2a519311 6649
463d0183 6650 if (!err) {
fd014284
JB		 6651 nl80211_send_scan_start(rdev, wdev);
6652 if (wdev->netdev)
6653 dev_hold(wdev->netdev);
4c476991 6654 } else {
2a519311 6655 out_free:
79c97e97 6656 rdev->scan_req = NULL;
2a519311
JB		 6657 kfree(request);
6658 }
3b85875a 6659
f9f47529 6660 unlock:
2a519311
JB		 6661 return err;
6662}
6663
91d3ab46
VK		 6664static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6665{
6666 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6667 struct wireless_dev *wdev = info->user_ptr[1];
6668
6669 if (!rdev->ops->abort_scan)
6670 return -EOPNOTSUPP;
6671
6672 if (rdev->scan_msg)
6673 return 0;
6674
6675 if (!rdev->scan_req)
6676 return -ENOENT;
6677
6678 rdev_abort_scan(rdev, wdev);
6679 return 0;
6680}
6681
3b06d277
AS		 6682static int
6683nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6684 struct cfg80211_sched_scan_request *request,
6685 struct nlattr **attrs)
6686{
6687 int tmp, err, i = 0;
6688 struct nlattr *attr;
6689
6690 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6691 u32 interval;
6692
6693 /*
6694 * If scan plans are not specified,
6695 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6696 * case one scan plan will be set with the specified scan
6697 * interval and infinite number of iterations.
6698 */
6699 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6700 return -EINVAL;
6701
6702 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6703 if (!interval)
6704 return -EINVAL;
6705
6706 request->scan_plans[0].interval =
6707 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6708 if (!request->scan_plans[0].interval)
6709 return -EINVAL;
6710
6711 if (request->scan_plans[0].interval >
6712 wiphy->max_sched_scan_plan_interval)
6713 request->scan_plans[0].interval =
6714 wiphy->max_sched_scan_plan_interval;
6715
6716 return 0;
6717 }
6718
6719 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6720 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6721
6722 if (WARN_ON(i >= n_plans))
6723 return -EINVAL;
6724
6725 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6726 nla_data(attr), nla_len(attr),
6727 nl80211_plan_policy);
6728 if (err)
6729 return err;
6730
6731 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6732 return -EINVAL;
6733
6734 request->scan_plans[i].interval =
6735 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6736 if (!request->scan_plans[i].interval ||
6737 request->scan_plans[i].interval >
6738 wiphy->max_sched_scan_plan_interval)
6739 return -EINVAL;
6740
6741 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6742 request->scan_plans[i].iterations =
6743 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6744 if (!request->scan_plans[i].iterations ||
6745 (request->scan_plans[i].iterations >
6746 wiphy->max_sched_scan_plan_iterations))
6747 return -EINVAL;
6748 } else if (i < n_plans - 1) {
6749 /*
6750 * All scan plans but the last one must specify
6751 * a finite number of iterations
6752 */
6753 return -EINVAL;
6754 }
6755
6756 i++;
6757 }
6758
6759 /*
6760 * The last scan plan must not specify the number of
6761 * iterations, it is supposed to run infinitely
6762 */
6763 if (request->scan_plans[n_plans - 1].iterations)
6764 return -EINVAL;
6765
6766 return 0;
6767}
6768
256da02d 6769static struct cfg80211_sched_scan_request *
ad2b26ab 6770nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 6771 struct nlattr **attrs)
807f8a8c
LC		 6772{
6773 struct cfg80211_sched_scan_request *request;
807f8a8c 6774 struct nlattr *attr;
3b06d277 6775 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
57fbcce3 6776 enum nl80211_band band;
807f8a8c 6777 size_t ie_len;
a1f1c21c 6778 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6779 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6780
256da02d
LC		 6781 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6782 return ERR_PTR(-EINVAL);
807f8a8c 6783
256da02d 6784 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6785 n_channels = validate_scan_freqs(
256da02d 6786 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6787 if (!n_channels)
256da02d 6788 return ERR_PTR(-EINVAL);
807f8a8c 6789 } else {
bdfbec2d 6790 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6791 }
6792
256da02d
LC		 6793 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6794 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6795 tmp)
6796 n_ssids++;
6797
93b6aa69 6798 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6799 return ERR_PTR(-EINVAL);
807f8a8c 6800
ea73cbce
JB		 6801 /*
6802 * First, count the number of 'real' matchsets. Due to an issue with
6803 * the old implementation, matchsets containing only the RSSI attribute
6804 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6805 * RSSI for all matchsets, rather than their own matchset for reporting
6806 * all APs with a strong RSSI. This is needed to be compatible with
6807 * older userspace that treated a matchset with only the RSSI as the
6808 * global RSSI for all other matchsets - if there are other matchsets.
6809 */
256da02d 6810 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6811 nla_for_each_nested(attr,
256da02d 6812 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6813 tmp) {
6814 struct nlattr *rssi;
6815
6816 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6817 nla_data(attr), nla_len(attr),
6818 nl80211_match_policy);
6819 if (err)
256da02d 6820 return ERR_PTR(err);
ea73cbce
JB		 6821 /* add other standalone attributes here */
6822 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6823 n_match_sets++;
6824 continue;
6825 }
6826 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6827 if (rssi)
6828 default_match_rssi = nla_get_s32(rssi);
6829 }
6830 }
6831
6832 /* However, if there's no other matchset, add the RSSI one */
6833 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6834 n_match_sets = 1;
a1f1c21c
LC		 6835
6836 if (n_match_sets > wiphy->max_match_sets)
256da02d 6837 return ERR_PTR(-EINVAL);
a1f1c21c 6838
256da02d
LC		 6839 if (attrs[NL80211_ATTR_IE])
6840 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6841 else
6842 ie_len = 0;
6843
5a865bad 6844 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6845 return ERR_PTR(-EINVAL);
c10841ca 6846
3b06d277
AS		 6847 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6848 /*
6849 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6850 * each scan plan already specifies its own interval
6851 */
6852 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6853 return ERR_PTR(-EINVAL);
6854
6855 nla_for_each_nested(attr,
6856 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6857 n_plans++;
6858 } else {
6859 /*
6860 * The scan interval attribute is kept for backward
6861 * compatibility. If no scan plans are specified and sched scan
6862 * interval is specified, one scan plan will be set with this
6863 * scan interval and infinite number of iterations.
6864 */
6865 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6866 return ERR_PTR(-EINVAL);
6867
6868 n_plans = 1;
6869 }
6870
6871 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6872 return ERR_PTR(-EINVAL);
6873
807f8a8c 6874 request = kzalloc(sizeof(*request)
a2cd43c5 6875 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6876 + sizeof(*request->match_sets) * n_match_sets
3b06d277 6877 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 6878 + sizeof(*request->channels) * n_channels
807f8a8c 6879 + ie_len, GFP_KERNEL);
256da02d
LC		 6880 if (!request)
6881 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6882
6883 if (n_ssids)
6884 request->ssids = (void *)&request->channels[n_channels];
6885 request->n_ssids = n_ssids;
6886 if (ie_len) {
13874e4b 6887 if (n_ssids)
807f8a8c
LC		 6888 request->ie = (void *)(request->ssids + n_ssids);
6889 else
6890 request->ie = (void *)(request->channels + n_channels);
6891 }
6892
a1f1c21c
LC		 6893 if (n_match_sets) {
6894 if (request->ie)
6895 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6896 else if (n_ssids)
a1f1c21c
LC		 6897 request->match_sets =
6898 (void *)(request->ssids + n_ssids);
6899 else
6900 request->match_sets =
6901 (void *)(request->channels + n_channels);
6902 }
6903 request->n_match_sets = n_match_sets;
6904
3b06d277
AS		 6905 if (n_match_sets)
6906 request->scan_plans = (void *)(request->match_sets +
6907 n_match_sets);
6908 else if (request->ie)
6909 request->scan_plans = (void *)(request->ie + ie_len);
6910 else if (n_ssids)
6911 request->scan_plans = (void *)(request->ssids + n_ssids);
6912 else
6913 request->scan_plans = (void *)(request->channels + n_channels);
6914
6915 request->n_scan_plans = n_plans;
6916
807f8a8c 6917 i = 0;
256da02d 6918 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6919 /* user specified, bail out if channel not found */
6920 nla_for_each_nested(attr,
256da02d 6921 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6922 tmp) {
6923 struct ieee80211_channel *chan;
6924
6925 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6926
6927 if (!chan) {
6928 err = -EINVAL;
6929 goto out_free;
6930 }
6931
6932 /* ignore disabled channels */
6933 if (chan->flags & IEEE80211_CHAN_DISABLED)
6934 continue;
6935
6936 request->channels[i] = chan;
6937 i++;
6938 }
6939 } else {
6940 /* all channels */
57fbcce3 6941 for (band = 0; band < NUM_NL80211_BANDS; band++) {
807f8a8c 6942 int j;
7a087e74 6943
807f8a8c
LC		 6944 if (!wiphy->bands[band])
6945 continue;
6946 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6947 struct ieee80211_channel *chan;
6948
6949 chan = &wiphy->bands[band]->channels[j];
6950
6951 if (chan->flags & IEEE80211_CHAN_DISABLED)
6952 continue;
6953
6954 request->channels[i] = chan;
6955 i++;
6956 }
6957 }
6958 }
6959
6960 if (!i) {
6961 err = -EINVAL;
6962 goto out_free;
6963 }
6964
6965 request->n_channels = i;
6966
6967 i = 0;
13874e4b 6968 if (n_ssids) {
256da02d 6969 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6970 tmp) {
57a27e1d 6971 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6972 err = -EINVAL;
6973 goto out_free;
6974 }
57a27e1d 6975 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6976 memcpy(request->ssids[i].ssid, nla_data(attr),
6977 nla_len(attr));
807f8a8c
LC		 6978 i++;
6979 }
6980 }
6981
a1f1c21c 6982 i = 0;
256da02d 6983 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6984 nla_for_each_nested(attr,
256da02d 6985 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6986 tmp) {
88e920b4 6987 struct nlattr *ssid, *rssi;
a1f1c21c 6988
ae811e21
JB		 6989 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6990 nla_data(attr), nla_len(attr),
6991 nl80211_match_policy);
6992 if (err)
6993 goto out_free;
4a4ab0d7 6994 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6995 if (ssid) {
ea73cbce
JB		 6996 if (WARN_ON(i >= n_match_sets)) {
6997 /* this indicates a programming error,
6998 * the loop above should have verified
6999 * things properly
7000 */
7001 err = -EINVAL;
7002 goto out_free;
7003 }
7004
a1f1c21c
LC		 7005 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
7006 err = -EINVAL;
7007 goto out_free;
7008 }
7009 memcpy(request->match_sets[i].ssid.ssid,
7010 nla_data(ssid), nla_len(ssid));
7011 request->match_sets[i].ssid.ssid_len =
7012 nla_len(ssid);
56ab364f 7013 /* special attribute - old implementation w/a */
ea73cbce
JB		 7014 request->match_sets[i].rssi_thold =
7015 default_match_rssi;
7016 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7017 if (rssi)
7018 request->match_sets[i].rssi_thold =
7019 nla_get_s32(rssi);
a1f1c21c
LC		 7020 }
7021 i++;
7022 }
ea73cbce
JB		 7023
7024 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 7025 if (i == 0 && n_match_sets)
ea73cbce
JB		 7026 request->match_sets[0].rssi_thold = default_match_rssi;
7027
7028 request->min_rssi_thold = INT_MAX;
7029 for (i = 0; i < n_match_sets; i++)
7030 request->min_rssi_thold =
7031 min(request->match_sets[i].rssi_thold,
7032 request->min_rssi_thold);
7033 } else {
7034 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 7035 }
7036
9900e484
JB		 7037 if (ie_len) {
7038 request->ie_len = ie_len;
807f8a8c 7039 memcpy((void *)request->ie,
256da02d 7040 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 7041 request->ie_len);
7042 }
7043
256da02d 7044 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 7045 request->flags = nla_get_u32(
256da02d 7046 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 7047 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
7048 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 7049 err = -EOPNOTSUPP;
7050 goto out_free;
7051 }
ad2b26ab
JB		 7052
7053 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
7054 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
7055
7056 if (!wdev) /* must be net-detect */
7057 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
7058
7059 if (!(wiphy->features & flg)) {
7060 err = -EOPNOTSUPP;
7061 goto out_free;
7062 }
7063
7064 if (wdev && wdev->current_bss) {
7065 err = -EOPNOTSUPP;
7066 goto out_free;
7067 }
7068
7069 err = nl80211_parse_random_mac(attrs, request->mac_addr,
7070 request->mac_addr_mask);
7071 if (err)
7072 goto out_free;
7073 }
46856bbf 7074 }
ed473771 7075
9c748934
LC		 7076 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
7077 request->delay =
7078 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
7079
3b06d277
AS		 7080 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
7081 if (err)
7082 goto out_free;
7083
15d6030b 7084 request->scan_start = jiffies;
807f8a8c 7085
256da02d 7086 return request;
807f8a8c
LC		 7087
7088out_free:
7089 kfree(request);
256da02d
LC		 7090 return ERR_PTR(err);
7091}
7092
7093static int nl80211_start_sched_scan(struct sk_buff *skb,
7094 struct genl_info *info)
7095{
7096 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7097 struct net_device *dev = info->user_ptr[1];
ad2b26ab 7098 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 7099 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 7100 int err;
7101
7102 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
7103 !rdev->ops->sched_scan_start)
7104 return -EOPNOTSUPP;
7105
7106 if (rdev->sched_scan_req)
7107 return -EINPROGRESS;
7108
31a60ed1
JR		 7109 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
7110 info->attrs);
7111
7112 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 7113 if (err)
7114 goto out_err;
7115
31a60ed1 7116 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 7117 if (err)
7118 goto out_free;
7119
31a60ed1
JR		 7120 sched_scan_req->dev = dev;
7121 sched_scan_req->wiphy = &rdev->wiphy;
7122
93a1e86c
JR		 7123 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
7124 sched_scan_req->owner_nlportid = info->snd_portid;
7125
31a60ed1 7126 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 7127
7128 nl80211_send_sched_scan(rdev, dev,
7129 NL80211_CMD_START_SCHED_SCAN);
7130 return 0;
7131
7132out_free:
31a60ed1 7133 kfree(sched_scan_req);
256da02d 7134out_err:
807f8a8c
LC		 7135 return err;
7136}
7137
7138static int nl80211_stop_sched_scan(struct sk_buff *skb,
7139 struct genl_info *info)
7140{
7141 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7142
7143 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
7144 !rdev->ops->sched_scan_stop)
7145 return -EOPNOTSUPP;
7146
5fe231e8 7147 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 7148}
7149
04f39047
SW		 7150static int nl80211_start_radar_detection(struct sk_buff *skb,
7151 struct genl_info *info)
7152{
7153 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7154 struct net_device *dev = info->user_ptr[1];
7155 struct wireless_dev *wdev = dev->ieee80211_ptr;
7156 struct cfg80211_chan_def chandef;
55f7435c 7157 enum nl80211_dfs_regions dfs_region;
31559f35 7158 unsigned int cac_time_ms;
04f39047
SW		 7159 int err;
7160
55f7435c
LR		 7161 dfs_region = reg_get_dfs_region(wdev->wiphy);
7162 if (dfs_region == NL80211_DFS_UNSET)
7163 return -EINVAL;
7164
04f39047
SW		 7165 err = nl80211_parse_chandef(rdev, info, &chandef);
7166 if (err)
7167 return err;
7168
ff311bc1
SW		 7169 if (netif_carrier_ok(dev))
7170 return -EBUSY;
7171
04f39047
SW		 7172 if (wdev->cac_started)
7173 return -EBUSY;
7174
2beb6dab 7175 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 7176 wdev->iftype);
04f39047
SW		 7177 if (err < 0)
7178 return err;
7179
7180 if (err == 0)
7181 return -EINVAL;
7182
fe7c3a1f 7183 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 7184 return -EINVAL;
7185
7186 if (!rdev->ops->start_radar_detection)
7187 return -EOPNOTSUPP;
7188
31559f35
JD		 7189 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
7190 if (WARN_ON(!cac_time_ms))
7191 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
7192
a1056b1b 7193 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 7194 if (!err) {
9e0e2961 7195 wdev->chandef = chandef;
04f39047
SW		 7196 wdev->cac_started = true;
7197 wdev->cac_start_time = jiffies;
31559f35 7198 wdev->cac_time_ms = cac_time_ms;
04f39047 7199 }
04f39047
SW		 7200 return err;
7201}
7202
16ef1fe2
SW		 7203static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
7204{
7205 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7206 struct net_device *dev = info->user_ptr[1];
7207 struct wireless_dev *wdev = dev->ieee80211_ptr;
7208 struct cfg80211_csa_settings params;
7209 /* csa_attrs is defined static to avoid waste of stack size - this
7210 * function is called under RTNL lock, so this should not be a problem.
7211 */
7212 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 7213 int err;
ee4bc9e7 7214 bool need_new_beacon = false;
9a774c78 7215 int len, i;
252e07ca 7216 u32 cs_count;
16ef1fe2
SW		 7217
7218 if (!rdev->ops->channel_switch ||
7219 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
7220 return -EOPNOTSUPP;
7221
ee4bc9e7
SW		 7222 switch (dev->ieee80211_ptr->iftype) {
7223 case NL80211_IFTYPE_AP:
7224 case NL80211_IFTYPE_P2P_GO:
7225 need_new_beacon = true;
7226
7227 /* useless if AP is not running */
7228 if (!wdev->beacon_interval)
1ff79dfa 7229 return -ENOTCONN;
ee4bc9e7
SW		 7230 break;
7231 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 7232 if (!wdev->ssid_len)
7233 return -ENOTCONN;
7234 break;
c6da674a 7235 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 7236 if (!wdev->mesh_id_len)
7237 return -ENOTCONN;
ee4bc9e7
SW		 7238 break;
7239 default:
16ef1fe2 7240 return -EOPNOTSUPP;
ee4bc9e7 7241 }
16ef1fe2
SW		 7242
7243 memset(&params, 0, sizeof(params));
7244
7245 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7246 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
7247 return -EINVAL;
7248
7249 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 7250 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 7251 return -EINVAL;
7252
252e07ca
LC		 7253 /* Even though the attribute is u32, the specification says
7254 * u8, so let's make sure we don't overflow.
7255 */
7256 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
7257 if (cs_count > 255)
7258 return -EINVAL;
7259
7260 params.count = cs_count;
16ef1fe2 7261
ee4bc9e7
SW		 7262 if (!need_new_beacon)
7263 goto skip_beacons;
7264
16ef1fe2
SW		 7265 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
7266 if (err)
7267 return err;
7268
7269 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
7270 info->attrs[NL80211_ATTR_CSA_IES],
7271 nl80211_policy);
7272 if (err)
7273 return err;
7274
7275 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
7276 if (err)
7277 return err;
7278
7279 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
7280 return -EINVAL;
7281
9a774c78
AO		 7282 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7283 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7284 return -EINVAL;
7285
9a774c78
AO		 7286 params.n_counter_offsets_beacon = len / sizeof(u16);
7287 if (rdev->wiphy.max_num_csa_counters &&
7288 (params.n_counter_offsets_beacon >
7289 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 7290 return -EINVAL;
7291
9a774c78
AO		 7292 params.counter_offsets_beacon =
7293 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7294
7295 /* sanity checks - counters should fit and be the same */
7296 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7297 u16 offset = params.counter_offsets_beacon[i];
7298
7299 if (offset >= params.beacon_csa.tail_len)
7300 return -EINVAL;
7301
7302 if (params.beacon_csa.tail[offset] != params.count)
7303 return -EINVAL;
7304 }
7305
16ef1fe2 7306 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 7307 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7308 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 7309 return -EINVAL;
7310
9a774c78
AO		 7311 params.n_counter_offsets_presp = len / sizeof(u16);
7312 if (rdev->wiphy.max_num_csa_counters &&
7313 (params.n_counter_offsets_beacon >
7314 rdev->wiphy.max_num_csa_counters))
16ef1fe2 7315 return -EINVAL;
9a774c78
AO		 7316
7317 params.counter_offsets_presp =
7318 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7319
7320 /* sanity checks - counters should fit and be the same */
7321 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7322 u16 offset = params.counter_offsets_presp[i];
7323
7324 if (offset >= params.beacon_csa.probe_resp_len)
7325 return -EINVAL;
7326
7327 if (params.beacon_csa.probe_resp[offset] !=
7328 params.count)
7329 return -EINVAL;
7330 }
16ef1fe2
SW		 7331 }
7332
ee4bc9e7 7333skip_beacons:
16ef1fe2
SW		 7334 err = nl80211_parse_chandef(rdev, info, &params.chandef);
7335 if (err)
7336 return err;
7337
923b352f
AN		 7338 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
7339 wdev->iftype))
16ef1fe2
SW		 7340 return -EINVAL;
7341
2beb6dab
LC		 7342 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7343 &params.chandef,
7344 wdev->iftype);
7345 if (err < 0)
7346 return err;
7347
dcc6c2f5 7348 if (err > 0)
2beb6dab 7349 params.radar_required = true;
16ef1fe2 7350
16ef1fe2
SW		 7351 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7352 params.block_tx = true;
7353
c56589ed
SW		 7354 wdev_lock(wdev);
7355 err = rdev_channel_switch(rdev, dev, &params);
7356 wdev_unlock(wdev);
7357
7358 return err;
16ef1fe2
SW		 7359}
7360
9720bb3a
JB		 7361static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7362 u32 seq, int flags,
2a519311 7363 struct cfg80211_registered_device *rdev,
48ab905d
JB		 7364 struct wireless_dev *wdev,
7365 struct cfg80211_internal_bss *intbss)
2a519311 7366{
48ab905d 7367 struct cfg80211_bss *res = &intbss->pub;
9caf0364 7368 const struct cfg80211_bss_ies *ies;
2a519311
JB		 7369 void *hdr;
7370 struct nlattr *bss;
48ab905d
JB		 7371
7372 ASSERT_WDEV_LOCK(wdev);
2a519311 7373
15e47304 7374 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 7375 NL80211_CMD_NEW_SCAN_RESULTS);
7376 if (!hdr)
7377 return -1;
7378
9720bb3a
JB		 7379 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7380
97990a06
JB		 7381 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7382 goto nla_put_failure;
7383 if (wdev->netdev &&
9360ffd1
DM		 7384 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7385 goto nla_put_failure;
2dad624e
ND		 7386 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7387 NL80211_ATTR_PAD))
97990a06 7388 goto nla_put_failure;
2a519311
JB		 7389
7390 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7391 if (!bss)
7392 goto nla_put_failure;
9360ffd1 7393 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 7394 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 7395 goto nla_put_failure;
9caf0364
JB		 7396
7397 rcu_read_lock();
0e227084
JB		 7398 /* indicate whether we have probe response data or not */
7399 if (rcu_access_pointer(res->proberesp_ies) &&
7400 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7401 goto fail_unlock_rcu;
7402
7403 /* this pointer prefers to be pointed to probe response data
7404 * but is always valid
7405 */
9caf0364 7406 ies = rcu_dereference(res->ies);
8cef2c9d 7407 if (ies) {
2dad624e
ND		 7408 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7409 NL80211_BSS_PAD))
8cef2c9d 7410 goto fail_unlock_rcu;
8cef2c9d
JB		 7411 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7412 ies->len, ies->data))
7413 goto fail_unlock_rcu;
9caf0364 7414 }
0e227084
JB		 7415
7416 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 7417 ies = rcu_dereference(res->beacon_ies);
0e227084 7418 if (ies && ies->from_beacon) {
2dad624e
ND		 7419 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7420 NL80211_BSS_PAD))
8cef2c9d
JB		 7421 goto fail_unlock_rcu;
7422 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7423 ies->len, ies->data))
7424 goto fail_unlock_rcu;
9caf0364
JB		 7425 }
7426 rcu_read_unlock();
7427
9360ffd1
DM		 7428 if (res->beacon_interval &&
7429 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7430 goto nla_put_failure;
7431 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7432 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 7433 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 7434 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7435 jiffies_to_msecs(jiffies - intbss->ts)))
7436 goto nla_put_failure;
2a519311 7437
1d76250b
AS		 7438 if (intbss->parent_tsf &&
7439 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7440 intbss->parent_tsf, NL80211_BSS_PAD) ||
7441 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7442 intbss->parent_bssid)))
7443 goto nla_put_failure;
7444
6e19bc4b 7445 if (intbss->ts_boottime &&
2dad624e
ND		 7446 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7447 intbss->ts_boottime, NL80211_BSS_PAD))
6e19bc4b
DS		 7448 goto nla_put_failure;
7449
77965c97 7450 switch (rdev->wiphy.signal_type) {
2a519311 7451 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 7452 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7453 goto nla_put_failure;
2a519311
JB		 7454 break;
7455 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 7456 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7457 goto nla_put_failure;
2a519311
JB		 7458 break;
7459 default:
7460 break;
7461 }
7462
48ab905d 7463 switch (wdev->iftype) {
074ac8df 7464 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 7465 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 7466 if (intbss == wdev->current_bss &&
7467 nla_put_u32(msg, NL80211_BSS_STATUS,
7468 NL80211_BSS_STATUS_ASSOCIATED))
7469 goto nla_put_failure;
48ab905d
JB		 7470 break;
7471 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 7472 if (intbss == wdev->current_bss &&
7473 nla_put_u32(msg, NL80211_BSS_STATUS,
7474 NL80211_BSS_STATUS_IBSS_JOINED))
7475 goto nla_put_failure;
48ab905d
JB		 7476 break;
7477 default:
7478 break;
7479 }
7480
2a519311
JB		 7481 nla_nest_end(msg, bss);
7482
053c095a
JB		 7483 genlmsg_end(msg, hdr);
7484 return 0;
2a519311 7485
8cef2c9d
JB		 7486 fail_unlock_rcu:
7487 rcu_read_unlock();
2a519311
JB		 7488 nla_put_failure:
7489 genlmsg_cancel(msg, hdr);
7490 return -EMSGSIZE;
7491}
7492
97990a06 7493static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 7494{
48ab905d 7495 struct cfg80211_registered_device *rdev;
2a519311 7496 struct cfg80211_internal_bss *scan;
48ab905d 7497 struct wireless_dev *wdev;
97990a06 7498 int start = cb->args[2], idx = 0;
2a519311
JB		 7499 int err;
7500
97990a06 7501 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7502 if (err)
7503 return err;
2a519311 7504
48ab905d
JB		 7505 wdev_lock(wdev);
7506 spin_lock_bh(&rdev->bss_lock);
7507 cfg80211_bss_expire(rdev);
7508
9720bb3a
JB		 7509 cb->seq = rdev->bss_generation;
7510
48ab905d 7511 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 7512 if (++idx <= start)
7513 continue;
9720bb3a 7514 if (nl80211_send_bss(skb, cb,
2a519311 7515 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 7516 rdev, wdev, scan) < 0) {
2a519311 7517 idx--;
67748893 7518 break;
2a519311
JB		 7519 }
7520 }
7521
48ab905d
JB		 7522 spin_unlock_bh(&rdev->bss_lock);
7523 wdev_unlock(wdev);
2a519311 7524
97990a06
JB		 7525 cb->args[2] = idx;
7526 nl80211_finish_wdev_dump(rdev);
2a519311 7527
67748893 7528 return skb->len;
2a519311
JB		 7529}
7530
15e47304 7531static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7532 int flags, struct net_device *dev,
7533 bool allow_radio_stats,
7534 struct survey_info *survey)
61fa713c
HS		 7535{
7536 void *hdr;
7537 struct nlattr *infoattr;
7538
11f78ac3
JB		 7539 /* skip radio stats if userspace didn't request them */
7540 if (!survey->channel && !allow_radio_stats)
7541 return 0;
7542
15e47304 7543 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7544 NL80211_CMD_NEW_SURVEY_RESULTS);
7545 if (!hdr)
7546 return -ENOMEM;
7547
9360ffd1
DM		 7548 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7549 goto nla_put_failure;
61fa713c
HS		 7550
7551 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7552 if (!infoattr)
7553 goto nla_put_failure;
7554
11f78ac3
JB		 7555 if (survey->channel &&
7556 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7557 survey->channel->center_freq))
7558 goto nla_put_failure;
7559
7560 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7561 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7562 goto nla_put_failure;
7563 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7564 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7565 goto nla_put_failure;
4ed20beb 7566 if ((survey->filled & SURVEY_INFO_TIME) &&
2dad624e
ND		 7567 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7568 survey->time, NL80211_SURVEY_INFO_PAD))
9360ffd1 7569 goto nla_put_failure;
4ed20beb 7570 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
2dad624e
ND		 7571 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7572 survey->time_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7573 goto nla_put_failure;
4ed20beb 7574 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
2dad624e
ND		 7575 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7576 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7577 goto nla_put_failure;
4ed20beb 7578 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
2dad624e
ND		 7579 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7580 survey->time_rx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7581 goto nla_put_failure;
4ed20beb 7582 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
2dad624e
ND		 7583 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7584 survey->time_tx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7585 goto nla_put_failure;
052536ab 7586 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
2dad624e
ND		 7587 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7588 survey->time_scan, NL80211_SURVEY_INFO_PAD))
052536ab 7589 goto nla_put_failure;
61fa713c
HS		 7590
7591 nla_nest_end(msg, infoattr);
7592
053c095a
JB		 7593 genlmsg_end(msg, hdr);
7594 return 0;
61fa713c
HS		 7595
7596 nla_put_failure:
7597 genlmsg_cancel(msg, hdr);
7598 return -EMSGSIZE;
7599}
7600
11f78ac3 7601static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 7602{
7603 struct survey_info survey;
1b8ec87a 7604 struct cfg80211_registered_device *rdev;
97990a06
JB		 7605 struct wireless_dev *wdev;
7606 int survey_idx = cb->args[2];
61fa713c 7607 int res;
11f78ac3 7608 bool radio_stats;
61fa713c 7609
1b8ec87a 7610 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7611 if (res)
7612 return res;
61fa713c 7613
11f78ac3
JB		 7614 /* prepare_wdev_dump parsed the attributes */
7615 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
7616
97990a06
JB		 7617 if (!wdev->netdev) {
7618 res = -EINVAL;
7619 goto out_err;
7620 }
7621
1b8ec87a 7622 if (!rdev->ops->dump_survey) {
61fa713c
HS		 7623 res = -EOPNOTSUPP;
7624 goto out_err;
7625 }
7626
7627 while (1) {
1b8ec87a 7628 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 7629 if (res == -ENOENT)
7630 break;
7631 if (res)
7632 goto out_err;
7633
11f78ac3
JB		 7634 /* don't send disabled channels, but do send non-channel data */
7635 if (survey.channel &&
7636 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 7637 survey_idx++;
7638 continue;
7639 }
7640
61fa713c 7641 if (nl80211_send_survey(skb,
15e47304 7642 NETLINK_CB(cb->skb).portid,
61fa713c 7643 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 7644 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 7645 goto out;
7646 survey_idx++;
7647 }
7648
7649 out:
97990a06 7650 cb->args[2] = survey_idx;
61fa713c
HS		 7651 res = skb->len;
7652 out_err:
1b8ec87a 7653 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 7654 return res;
7655}
7656
b23aa676
SO		 7657static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7658{
7659 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7660 NL80211_WPA_VERSION_2));
7661}
7662
636a5d36
JM		 7663static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7664{
4c476991
JB		 7665 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7666 struct net_device *dev = info->user_ptr[1];
19957bb3 7667 struct ieee80211_channel *chan;
e39e5b5e
JM		 7668 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7669 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 7670 enum nl80211_auth_type auth_type;
fffd0934 7671 struct key_parse key;
d5cdfacb 7672 bool local_state_change;
636a5d36 7673
f4a11bb0
JB		 7674 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7675 return -EINVAL;
7676
7677 if (!info->attrs[NL80211_ATTR_MAC])
7678 return -EINVAL;
7679
1778092e
JM		 7680 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7681 return -EINVAL;
7682
19957bb3
JB		 7683 if (!info->attrs[NL80211_ATTR_SSID])
7684 return -EINVAL;
7685
7686 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7687 return -EINVAL;
7688
fffd0934
JB		 7689 err = nl80211_parse_key(info, &key);
7690 if (err)
7691 return err;
7692
7693 if (key.idx >= 0) {
e31b8213
JB		 7694 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7695 return -EINVAL;
fffd0934
JB		 7696 if (!key.p.key || !key.p.key_len)
7697 return -EINVAL;
7698 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7699 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7700 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7701 key.p.key_len != WLAN_KEY_LEN_WEP104))
7702 return -EINVAL;
b6b5555b 7703 if (key.idx > 3)
fffd0934
JB		 7704 return -EINVAL;
7705 } else {
7706 key.p.key_len = 0;
7707 key.p.key = NULL;
7708 }
7709
afea0b7a
JB		 7710 if (key.idx >= 0) {
7711 int i;
7712 bool ok = false;
7a087e74 7713
afea0b7a
JB		 7714 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7715 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7716 ok = true;
7717 break;
7718 }
7719 }
4c476991
JB		 7720 if (!ok)
7721 return -EINVAL;
afea0b7a
JB		 7722 }
7723
4c476991
JB		 7724 if (!rdev->ops->auth)
7725 return -EOPNOTSUPP;
636a5d36 7726
074ac8df 7727 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7728 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7729 return -EOPNOTSUPP;
eec60b03 7730
19957bb3 7731 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7732 chan = nl80211_get_valid_chan(&rdev->wiphy,
7733 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7734 if (!chan)
4c476991 7735 return -EINVAL;
636a5d36 7736
19957bb3
JB		 7737 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7738 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7739
7740 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7741 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7742 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7743 }
7744
19957bb3 7745 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7746 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7747 return -EINVAL;
636a5d36 7748
e39e5b5e
JM		 7749 if (auth_type == NL80211_AUTHTYPE_SAE &&
7750 !info->attrs[NL80211_ATTR_SAE_DATA])
7751 return -EINVAL;
7752
7753 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7754 if (auth_type != NL80211_AUTHTYPE_SAE)
7755 return -EINVAL;
7756 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7757 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7758 /* need to include at least Auth Transaction and Status Code */
7759 if (sae_data_len < 4)
7760 return -EINVAL;
7761 }
7762
d5cdfacb
JM		 7763 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7764
95de817b
JB		 7765 /*
7766 * Since we no longer track auth state, ignore
7767 * requests to only change local state.
7768 */
7769 if (local_state_change)
7770 return 0;
7771
91bf9b26
JB		 7772 wdev_lock(dev->ieee80211_ptr);
7773 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7774 ssid, ssid_len, ie, ie_len,
7775 key.p.key, key.p.key_len, key.idx,
7776 sae_data, sae_data_len);
7777 wdev_unlock(dev->ieee80211_ptr);
7778 return err;
636a5d36
JM		 7779}
7780
c0692b8f
JB		 7781static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7782 struct genl_info *info,
3dc27d25
JB		 7783 struct cfg80211_crypto_settings *settings,
7784 int cipher_limit)
b23aa676 7785{
c0b2bbd8
JB		 7786 memset(settings, 0, sizeof(*settings));
7787
b23aa676
SO		 7788 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7789
c0692b8f
JB		 7790 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7791 u16 proto;
7a087e74 7792
c0692b8f
JB		 7793 proto = nla_get_u16(
7794 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7795 settings->control_port_ethertype = cpu_to_be16(proto);
7796 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7797 proto != ETH_P_PAE)
7798 return -EINVAL;
7799 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7800 settings->control_port_no_encrypt = true;
7801 } else
7802 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7803
b23aa676
SO		 7804 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7805 void *data;
7806 int len, i;
7807
7808 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7809 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7810 settings->n_ciphers_pairwise = len / sizeof(u32);
7811
7812 if (len % sizeof(u32))
7813 return -EINVAL;
7814
3dc27d25 7815 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 7816 return -EINVAL;
7817
7818 memcpy(settings->ciphers_pairwise, data, len);
7819
7820 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 7821 if (!cfg80211_supported_cipher_suite(
7822 &rdev->wiphy,
b23aa676
SO		 7823 settings->ciphers_pairwise[i]))
7824 return -EINVAL;
7825 }
7826
7827 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7828 settings->cipher_group =
7829 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 7830 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7831 settings->cipher_group))
b23aa676
SO		 7832 return -EINVAL;
7833 }
7834
7835 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7836 settings->wpa_versions =
7837 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7838 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7839 return -EINVAL;
7840 }
7841
7842 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7843 void *data;
6d30240e 7844 int len;
b23aa676
SO		 7845
7846 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7847 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7848 settings->n_akm_suites = len / sizeof(u32);
7849
7850 if (len % sizeof(u32))
7851 return -EINVAL;
7852
1b9ca027
JM		 7853 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7854 return -EINVAL;
7855
b23aa676 7856 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 7857 }
7858
7859 return 0;
7860}
7861
636a5d36
JM		 7862static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7863{
4c476991
JB		 7864 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7865 struct net_device *dev = info->user_ptr[1];
f444de05 7866 struct ieee80211_channel *chan;
f62fab73
JB		 7867 struct cfg80211_assoc_request req = {};
7868 const u8 *bssid, *ssid;
7869 int err, ssid_len = 0;
636a5d36 7870
f4a11bb0
JB		 7871 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7872 return -EINVAL;
7873
7874 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7875 !info->attrs[NL80211_ATTR_SSID] ||
7876 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7877 return -EINVAL;
7878
4c476991
JB		 7879 if (!rdev->ops->assoc)
7880 return -EOPNOTSUPP;
636a5d36 7881
074ac8df 7882 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7883 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7884 return -EOPNOTSUPP;
eec60b03 7885
19957bb3 7886 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7887
664834de
JM		 7888 chan = nl80211_get_valid_chan(&rdev->wiphy,
7889 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7890 if (!chan)
4c476991 7891 return -EINVAL;
636a5d36 7892
19957bb3
JB		 7893 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7894 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7895
7896 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7897 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7898 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7899 }
7900
dc6382ce 7901 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7902 enum nl80211_mfp mfp =
dc6382ce 7903 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7904 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7905 req.use_mfp = true;
4c476991
JB		 7906 else if (mfp != NL80211_MFP_NO)
7907 return -EINVAL;
dc6382ce
JM		 7908 }
7909
3e5d7649 7910 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7911 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7912
7e7c8926 7913 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7914 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7915
7916 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7917 memcpy(&req.ht_capa_mask,
7918 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7919 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7920
7921 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7922 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7923 return -EINVAL;
f62fab73
JB		 7924 memcpy(&req.ht_capa,
7925 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7926 sizeof(req.ht_capa));
7e7c8926
BG		 7927 }
7928
ee2aca34 7929 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7930 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7931
7932 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7933 memcpy(&req.vht_capa_mask,
7934 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7935 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7936
7937 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7938 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7939 return -EINVAL;
f62fab73
JB		 7940 memcpy(&req.vht_capa,
7941 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7942 sizeof(req.vht_capa));
ee2aca34
JB		 7943 }
7944
bab5ab7d 7945 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 7946 if (!((rdev->wiphy.features &
7947 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
7948 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
7949 !wiphy_ext_feature_isset(&rdev->wiphy,
7950 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 7951 return -EINVAL;
7952 req.flags |= ASSOC_REQ_USE_RRM;
7953 }
7954
f62fab73 7955 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7956 if (!err) {
7957 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7958 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7959 ssid, ssid_len, &req);
91bf9b26
JB		 7960 wdev_unlock(dev->ieee80211_ptr);
7961 }
636a5d36 7962
636a5d36
JM		 7963 return err;
7964}
7965
7966static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7967{
4c476991
JB		 7968 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7969 struct net_device *dev = info->user_ptr[1];
19957bb3 7970 const u8 *ie = NULL, *bssid;
91bf9b26 7971 int ie_len = 0, err;
19957bb3 7972 u16 reason_code;
d5cdfacb 7973 bool local_state_change;
636a5d36 7974
f4a11bb0
JB		 7975 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7976 return -EINVAL;
7977
7978 if (!info->attrs[NL80211_ATTR_MAC])
7979 return -EINVAL;
7980
7981 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7982 return -EINVAL;
7983
4c476991
JB		 7984 if (!rdev->ops->deauth)
7985 return -EOPNOTSUPP;
636a5d36 7986
074ac8df 7987 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7988 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7989 return -EOPNOTSUPP;
eec60b03 7990
19957bb3 7991 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7992
19957bb3
JB		 7993 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7994 if (reason_code == 0) {
f4a11bb0 7995 /* Reason Code 0 is reserved */
4c476991 7996 return -EINVAL;
255e737e 7997 }
636a5d36
JM		 7998
7999 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8000 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8001 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8002 }
8003
d5cdfacb
JM		 8004 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8005
91bf9b26
JB		 8006 wdev_lock(dev->ieee80211_ptr);
8007 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
8008 local_state_change);
8009 wdev_unlock(dev->ieee80211_ptr);
8010 return err;
636a5d36
JM		 8011}
8012
8013static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
8014{
4c476991
JB		 8015 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8016 struct net_device *dev = info->user_ptr[1];
19957bb3 8017 const u8 *ie = NULL, *bssid;
91bf9b26 8018 int ie_len = 0, err;
19957bb3 8019 u16 reason_code;
d5cdfacb 8020 bool local_state_change;
636a5d36 8021
f4a11bb0
JB		 8022 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8023 return -EINVAL;
8024
8025 if (!info->attrs[NL80211_ATTR_MAC])
8026 return -EINVAL;
8027
8028 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8029 return -EINVAL;
8030
4c476991
JB		 8031 if (!rdev->ops->disassoc)
8032 return -EOPNOTSUPP;
636a5d36 8033
074ac8df 8034 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8035 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8036 return -EOPNOTSUPP;
eec60b03 8037
19957bb3 8038 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 8039
19957bb3
JB		 8040 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8041 if (reason_code == 0) {
f4a11bb0 8042 /* Reason Code 0 is reserved */
4c476991 8043 return -EINVAL;
255e737e 8044 }
636a5d36
JM		 8045
8046 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 8047 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8048 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 8049 }
8050
d5cdfacb
JM		 8051 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8052
91bf9b26
JB		 8053 wdev_lock(dev->ieee80211_ptr);
8054 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
8055 local_state_change);
8056 wdev_unlock(dev->ieee80211_ptr);
8057 return err;
636a5d36
JM		 8058}
8059
dd5b4cc7
FF		 8060static bool
8061nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
57fbcce3 8062 int mcast_rate[NUM_NL80211_BANDS],
dd5b4cc7
FF		 8063 int rateval)
8064{
8065 struct wiphy *wiphy = &rdev->wiphy;
8066 bool found = false;
8067 int band, i;
8068
57fbcce3 8069 for (band = 0; band < NUM_NL80211_BANDS; band++) {
dd5b4cc7
FF		 8070 struct ieee80211_supported_band *sband;
8071
8072 sband = wiphy->bands[band];
8073 if (!sband)
8074 continue;
8075
8076 for (i = 0; i < sband->n_bitrates; i++) {
8077 if (sband->bitrates[i].bitrate == rateval) {
8078 mcast_rate[band] = i + 1;
8079 found = true;
8080 break;
8081 }
8082 }
8083 }
8084
8085 return found;
8086}
8087
04a773ad
JB		 8088static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
8089{
4c476991
JB		 8090 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8091 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 8092 struct cfg80211_ibss_params ibss;
8093 struct wiphy *wiphy;
fffd0934 8094 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 8095 int err;
8096
8e30bc55
JB		 8097 memset(&ibss, 0, sizeof(ibss));
8098
04a773ad
JB		 8099 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8100 return -EINVAL;
8101
683b6d3b 8102 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 8103 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8104 return -EINVAL;
8105
8e30bc55
JB		 8106 ibss.beacon_interval = 100;
8107
12d20fc9 8108 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8e30bc55
JB		 8109 ibss.beacon_interval =
8110 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9
PK		 8111
8112 err = cfg80211_validate_beacon_int(rdev, ibss.beacon_interval);
8113 if (err)
8114 return err;
8e30bc55 8115
4c476991
JB		 8116 if (!rdev->ops->join_ibss)
8117 return -EOPNOTSUPP;
04a773ad 8118
4c476991
JB		 8119 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8120 return -EOPNOTSUPP;
04a773ad 8121
79c97e97 8122 wiphy = &rdev->wiphy;
04a773ad 8123
39193498 8124 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 8125 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 8126
8127 if (!is_valid_ether_addr(ibss.bssid))
8128 return -EINVAL;
8129 }
04a773ad
JB		 8130 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8131 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8132
8133 if (info->attrs[NL80211_ATTR_IE]) {
8134 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8135 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8136 }
8137
683b6d3b
JB		 8138 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
8139 if (err)
8140 return err;
04a773ad 8141
174e0cd2
IP		 8142 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
8143 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 8144 return -EINVAL;
8145
2f301ab2 8146 switch (ibss.chandef.width) {
bf372645
SW		 8147 case NL80211_CHAN_WIDTH_5:
8148 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 8149 case NL80211_CHAN_WIDTH_20_NOHT:
8150 break;
8151 case NL80211_CHAN_WIDTH_20:
8152 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 8153 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8154 return -EINVAL;
8155 break;
8156 case NL80211_CHAN_WIDTH_80:
8157 case NL80211_CHAN_WIDTH_80P80:
8158 case NL80211_CHAN_WIDTH_160:
8159 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8160 return -EINVAL;
8161 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8162 NL80211_EXT_FEATURE_VHT_IBSS))
8163 return -EINVAL;
8164 break;
2f301ab2 8165 default:
c04d6150 8166 return -EINVAL;
2f301ab2 8167 }
db9c64cf 8168
04a773ad 8169 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 8170 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
8171
fbd2c8dc
TP		 8172 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8173 u8 *rates =
8174 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8175 int n_rates =
8176 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8177 struct ieee80211_supported_band *sband =
683b6d3b 8178 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 8179
34850ab2
JB		 8180 err = ieee80211_get_ratemask(sband, rates, n_rates,
8181 &ibss.basic_rates);
8182 if (err)
8183 return err;
fbd2c8dc 8184 }
dd5b4cc7 8185
803768f5
SW		 8186 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8187 memcpy(&ibss.ht_capa_mask,
8188 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8189 sizeof(ibss.ht_capa_mask));
8190
8191 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8192 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8193 return -EINVAL;
8194 memcpy(&ibss.ht_capa,
8195 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8196 sizeof(ibss.ht_capa));
8197 }
8198
dd5b4cc7
FF		 8199 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8200 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
8201 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8202 return -EINVAL;
fbd2c8dc 8203
4c476991 8204 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 8205 bool no_ht = false;
8206
4c476991 8207 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 8208 info->attrs[NL80211_ATTR_KEYS],
8209 &no_ht);
4c476991
JB		 8210 if (IS_ERR(connkeys))
8211 return PTR_ERR(connkeys);
de7044ee 8212
3d9d1d66
JB		 8213 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
8214 no_ht) {
5e950a78 8215 kzfree(connkeys);
de7044ee
SM		 8216 return -EINVAL;
8217 }
4c476991 8218 }
04a773ad 8219
267335d6
AQ		 8220 ibss.control_port =
8221 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
8222
5336fa88
SW		 8223 ibss.userspace_handles_dfs =
8224 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
8225
4c476991 8226 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 8227 if (err)
b47f610b 8228 kzfree(connkeys);
04a773ad
JB		 8229 return err;
8230}
8231
8232static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
8233{
4c476991
JB		 8234 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8235 struct net_device *dev = info->user_ptr[1];
04a773ad 8236
4c476991
JB		 8237 if (!rdev->ops->leave_ibss)
8238 return -EOPNOTSUPP;
04a773ad 8239
4c476991
JB		 8240 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8241 return -EOPNOTSUPP;
04a773ad 8242
4c476991 8243 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 8244}
8245
f4e583c8
AQ		 8246static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
8247{
8248 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8249 struct net_device *dev = info->user_ptr[1];
57fbcce3 8250 int mcast_rate[NUM_NL80211_BANDS];
f4e583c8
AQ		 8251 u32 nla_rate;
8252 int err;
8253
8254 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 8255 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
8256 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 8257 return -EOPNOTSUPP;
8258
8259 if (!rdev->ops->set_mcast_rate)
8260 return -EOPNOTSUPP;
8261
8262 memset(mcast_rate, 0, sizeof(mcast_rate));
8263
8264 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
8265 return -EINVAL;
8266
8267 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
8268 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
8269 return -EINVAL;
8270
a1056b1b 8271 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 8272
8273 return err;
8274}
8275
ad7e718c
JB		 8276static struct sk_buff *
8277__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 8278 struct wireless_dev *wdev, int approxlen,
8279 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 8280 enum nl80211_attrs attr,
8281 const struct nl80211_vendor_cmd_info *info,
8282 gfp_t gfp)
ad7e718c
JB		 8283{
8284 struct sk_buff *skb;
8285 void *hdr;
8286 struct nlattr *data;
8287
8288 skb = nlmsg_new(approxlen + 100, gfp);
8289 if (!skb)
8290 return NULL;
8291
8292 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
8293 if (!hdr) {
8294 kfree_skb(skb);
8295 return NULL;
8296 }
8297
8298 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
8299 goto nla_put_failure;
567ffc35
JB		 8300
8301 if (info) {
8302 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
8303 info->vendor_id))
8304 goto nla_put_failure;
8305 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
8306 info->subcmd))
8307 goto nla_put_failure;
8308 }
8309
6c09e791 8310 if (wdev) {
2dad624e
ND		 8311 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
8312 wdev_id(wdev), NL80211_ATTR_PAD))
6c09e791
AK		 8313 goto nla_put_failure;
8314 if (wdev->netdev &&
8315 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
8316 wdev->netdev->ifindex))
8317 goto nla_put_failure;
8318 }
8319
ad7e718c 8320 data = nla_nest_start(skb, attr);
76e1fb4b
JB		 8321 if (!data)
8322 goto nla_put_failure;
ad7e718c
JB		 8323
8324 ((void **)skb->cb)[0] = rdev;
8325 ((void **)skb->cb)[1] = hdr;
8326 ((void **)skb->cb)[2] = data;
8327
8328 return skb;
8329
8330 nla_put_failure:
8331 kfree_skb(skb);
8332 return NULL;
8333}
f4e583c8 8334
e03ad6ea 8335struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 8336 struct wireless_dev *wdev,
e03ad6ea
JB		 8337 enum nl80211_commands cmd,
8338 enum nl80211_attrs attr,
8339 int vendor_event_idx,
8340 int approxlen, gfp_t gfp)
8341{
f26cbf40 8342 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 8343 const struct nl80211_vendor_cmd_info *info;
8344
8345 switch (cmd) {
8346 case NL80211_CMD_TESTMODE:
8347 if (WARN_ON(vendor_event_idx != -1))
8348 return NULL;
8349 info = NULL;
8350 break;
8351 case NL80211_CMD_VENDOR:
8352 if (WARN_ON(vendor_event_idx < 0 ||
8353 vendor_event_idx >= wiphy->n_vendor_events))
8354 return NULL;
8355 info = &wiphy->vendor_events[vendor_event_idx];
8356 break;
8357 default:
8358 WARN_ON(1);
8359 return NULL;
8360 }
8361
6c09e791 8362 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 8363 cmd, attr, info, gfp);
8364}
8365EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8366
8367void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8368{
8369 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8370 void *hdr = ((void **)skb->cb)[1];
8371 struct nlattr *data = ((void **)skb->cb)[2];
8372 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8373
bd8c78e7
JB		 8374 /* clear CB data for netlink core to own from now on */
8375 memset(skb->cb, 0, sizeof(skb->cb));
8376
e03ad6ea
JB		 8377 nla_nest_end(skb, data);
8378 genlmsg_end(skb, hdr);
8379
8380 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8381 mcgrp = NL80211_MCGRP_VENDOR;
8382
8383 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8384 mcgrp, gfp);
8385}
8386EXPORT_SYMBOL(__cfg80211_send_event_skb);
8387
aff89a9b 8388#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 8389static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8390{
4c476991 8391 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 8392 struct wireless_dev *wdev =
8393 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 8394 int err;
8395
fc73f11f
DS		 8396 if (!rdev->ops->testmode_cmd)
8397 return -EOPNOTSUPP;
8398
8399 if (IS_ERR(wdev)) {
8400 err = PTR_ERR(wdev);
8401 if (err != -EINVAL)
8402 return err;
8403 wdev = NULL;
8404 } else if (wdev->wiphy != &rdev->wiphy) {
8405 return -EINVAL;
8406 }
8407
aff89a9b
JB		 8408 if (!info->attrs[NL80211_ATTR_TESTDATA])
8409 return -EINVAL;
8410
ad7e718c 8411 rdev->cur_cmd_info = info;
fc73f11f 8412 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 8413 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8414 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 8415 rdev->cur_cmd_info = NULL;
aff89a9b 8416
aff89a9b
JB		 8417 return err;
8418}
8419
71063f0e
WYG		 8420static int nl80211_testmode_dump(struct sk_buff *skb,
8421 struct netlink_callback *cb)
8422{
00918d33 8423 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 8424 int err;
8425 long phy_idx;
8426 void *data = NULL;
8427 int data_len = 0;
8428
5fe231e8
JB		 8429 rtnl_lock();
8430
71063f0e
WYG		 8431 if (cb->args[0]) {
8432 /*
8433 * 0 is a valid index, but not valid for args[0],
8434 * so we need to offset by 1.
8435 */
8436 phy_idx = cb->args[0] - 1;
8437 } else {
8438 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
8439 nl80211_fam.attrbuf, nl80211_fam.maxattr,
8440 nl80211_policy);
8441 if (err)
5fe231e8 8442 goto out_err;
00918d33 8443
2bd7e35d
JB		 8444 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
8445 nl80211_fam.attrbuf);
8446 if (IS_ERR(rdev)) {
5fe231e8
JB		 8447 err = PTR_ERR(rdev);
8448 goto out_err;
00918d33 8449 }
2bd7e35d
JB		 8450 phy_idx = rdev->wiphy_idx;
8451 rdev = NULL;
2bd7e35d 8452
71063f0e
WYG		 8453 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
8454 cb->args[1] =
8455 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
8456 }
8457
8458 if (cb->args[1]) {
8459 data = nla_data((void *)cb->args[1]);
8460 data_len = nla_len((void *)cb->args[1]);
8461 }
8462
00918d33
JB		 8463 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8464 if (!rdev) {
5fe231e8
JB		 8465 err = -ENOENT;
8466 goto out_err;
71063f0e 8467 }
71063f0e 8468
00918d33 8469 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 8470 err = -EOPNOTSUPP;
8471 goto out_err;
8472 }
8473
8474 while (1) {
15e47304 8475 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 8476 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8477 NL80211_CMD_TESTMODE);
8478 struct nlattr *tmdata;
8479
cb35fba3
DC		 8480 if (!hdr)
8481 break;
8482
9360ffd1 8483 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 8484 genlmsg_cancel(skb, hdr);
8485 break;
8486 }
8487
8488 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8489 if (!tmdata) {
8490 genlmsg_cancel(skb, hdr);
8491 break;
8492 }
e35e4d28 8493 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 8494 nla_nest_end(skb, tmdata);
8495
8496 if (err == -ENOBUFS || err == -ENOENT) {
8497 genlmsg_cancel(skb, hdr);
8498 break;
8499 } else if (err) {
8500 genlmsg_cancel(skb, hdr);
8501 goto out_err;
8502 }
8503
8504 genlmsg_end(skb, hdr);
8505 }
8506
8507 err = skb->len;
8508 /* see above */
8509 cb->args[0] = phy_idx + 1;
8510 out_err:
5fe231e8 8511 rtnl_unlock();
71063f0e
WYG		 8512 return err;
8513}
aff89a9b
JB		 8514#endif
8515
b23aa676
SO		 8516static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8517{
4c476991
JB		 8518 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8519 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 8520 struct cfg80211_connect_params connect;
8521 struct wiphy *wiphy;
fffd0934 8522 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 8523 int err;
8524
8525 memset(&connect, 0, sizeof(connect));
8526
8527 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8528 return -EINVAL;
8529
8530 if (!info->attrs[NL80211_ATTR_SSID] ||
8531 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8532 return -EINVAL;
8533
8534 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8535 connect.auth_type =
8536 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8537 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8538 NL80211_CMD_CONNECT))
b23aa676
SO		 8539 return -EINVAL;
8540 } else
8541 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8542
8543 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8544
c0692b8f 8545 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8546 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8547 if (err)
8548 return err;
b23aa676 8549
074ac8df 8550 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8551 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8552 return -EOPNOTSUPP;
b23aa676 8553
79c97e97 8554 wiphy = &rdev->wiphy;
b23aa676 8555
4486ea98
BS		 8556 connect.bg_scan_period = -1;
8557 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8558 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8559 connect.bg_scan_period =
8560 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8561 }
8562
b23aa676
SO		 8563 if (info->attrs[NL80211_ATTR_MAC])
8564 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8565 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8566 connect.bssid_hint =
8567 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8568 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8569 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8570
8571 if (info->attrs[NL80211_ATTR_IE]) {
8572 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8573 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8574 }
8575
cee00a95
JM		 8576 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8577 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8578 if (connect.mfp != NL80211_MFP_REQUIRED &&
8579 connect.mfp != NL80211_MFP_NO)
8580 return -EINVAL;
8581 } else {
8582 connect.mfp = NL80211_MFP_NO;
8583 }
8584
ba6fbacf
JM		 8585 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8586 connect.prev_bssid =
8587 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8588
b23aa676 8589 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 8590 connect.channel = nl80211_get_valid_chan(
8591 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8592 if (!connect.channel)
1df4a510
JM		 8593 return -EINVAL;
8594 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 8595 connect.channel_hint = nl80211_get_valid_chan(
8596 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8597 if (!connect.channel_hint)
4c476991 8598 return -EINVAL;
b23aa676
SO		 8599 }
8600
fffd0934
JB		 8601 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8602 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 8603 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 8604 if (IS_ERR(connkeys))
8605 return PTR_ERR(connkeys);
fffd0934
JB		 8606 }
8607
7e7c8926
BG		 8608 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8609 connect.flags |= ASSOC_REQ_DISABLE_HT;
8610
8611 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8612 memcpy(&connect.ht_capa_mask,
8613 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8614 sizeof(connect.ht_capa_mask));
8615
8616 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 8617 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 8618 kzfree(connkeys);
7e7c8926 8619 return -EINVAL;
b4e4f47e 8620 }
7e7c8926
BG		 8621 memcpy(&connect.ht_capa,
8622 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8623 sizeof(connect.ht_capa));
8624 }
8625
ee2aca34
JB		 8626 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8627 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8628
8629 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8630 memcpy(&connect.vht_capa_mask,
8631 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8632 sizeof(connect.vht_capa_mask));
8633
8634 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8635 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 8636 kzfree(connkeys);
ee2aca34
JB		 8637 return -EINVAL;
8638 }
8639 memcpy(&connect.vht_capa,
8640 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8641 sizeof(connect.vht_capa));
8642 }
8643
bab5ab7d 8644 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8645 if (!((rdev->wiphy.features &
8646 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8647 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8648 !wiphy_ext_feature_isset(&rdev->wiphy,
8649 NL80211_EXT_FEATURE_RRM)) {
707554b4 8650 kzfree(connkeys);
bab5ab7d 8651 return -EINVAL;
707554b4 8652 }
bab5ab7d
AK		 8653 connect.flags |= ASSOC_REQ_USE_RRM;
8654 }
8655
34d50519 8656 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 8657 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
34d50519
LD		 8658 kzfree(connkeys);
8659 return -EOPNOTSUPP;
8660 }
8661
38de03d2
AS		 8662 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8663 /* bss selection makes no sense if bssid is set */
8664 if (connect.bssid) {
8665 kzfree(connkeys);
8666 return -EINVAL;
8667 }
8668
8669 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8670 wiphy, &connect.bss_select);
8671 if (err) {
8672 kzfree(connkeys);
8673 return err;
8674 }
8675 }
8676
83739b03 8677 wdev_lock(dev->ieee80211_ptr);
4ce2bd9c
JM		 8678 err = cfg80211_connect(rdev, dev, &connect, connkeys,
8679 connect.prev_bssid);
83739b03 8680 wdev_unlock(dev->ieee80211_ptr);
fffd0934 8681 if (err)
b47f610b 8682 kzfree(connkeys);
b23aa676
SO		 8683 return err;
8684}
8685
8686static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8687{
4c476991
JB		 8688 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8689 struct net_device *dev = info->user_ptr[1];
b23aa676 8690 u16 reason;
83739b03 8691 int ret;
b23aa676
SO		 8692
8693 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8694 reason = WLAN_REASON_DEAUTH_LEAVING;
8695 else
8696 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8697
8698 if (reason == 0)
8699 return -EINVAL;
8700
074ac8df 8701 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8702 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8703 return -EOPNOTSUPP;
b23aa676 8704
83739b03
JB		 8705 wdev_lock(dev->ieee80211_ptr);
8706 ret = cfg80211_disconnect(rdev, dev, reason, true);
8707 wdev_unlock(dev->ieee80211_ptr);
8708 return ret;
b23aa676
SO		 8709}
8710
463d0183
JB		 8711static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8712{
4c476991 8713 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 8714 struct net *net;
8715 int err;
463d0183 8716
4b681c82
VK		 8717 if (info->attrs[NL80211_ATTR_PID]) {
8718 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8719
8720 net = get_net_ns_by_pid(pid);
8721 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8722 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 8723
4b681c82
VK		 8724 net = get_net_ns_by_fd(fd);
8725 } else {
8726 return -EINVAL;
8727 }
463d0183 8728
4c476991
JB		 8729 if (IS_ERR(net))
8730 return PTR_ERR(net);
463d0183
JB		 8731
8732 err = 0;
8733
8734 /* check if anything to do */
4c476991
JB		 8735 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8736 err = cfg80211_switch_netns(rdev, net);
463d0183 8737
463d0183 8738 put_net(net);
463d0183
JB		 8739 return err;
8740}
8741
67fbb16b
SO		 8742static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8743{
4c476991 8744 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 8745 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8746 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 8747 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 8748 struct cfg80211_pmksa pmksa;
8749
8750 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8751
8752 if (!info->attrs[NL80211_ATTR_MAC])
8753 return -EINVAL;
8754
8755 if (!info->attrs[NL80211_ATTR_PMKID])
8756 return -EINVAL;
8757
67fbb16b
SO		 8758 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8759 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8760
074ac8df 8761 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8762 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8763 return -EOPNOTSUPP;
67fbb16b
SO		 8764
8765 switch (info->genlhdr->cmd) {
8766 case NL80211_CMD_SET_PMKSA:
8767 rdev_ops = rdev->ops->set_pmksa;
8768 break;
8769 case NL80211_CMD_DEL_PMKSA:
8770 rdev_ops = rdev->ops->del_pmksa;
8771 break;
8772 default:
8773 WARN_ON(1);
8774 break;
8775 }
8776
4c476991
JB		 8777 if (!rdev_ops)
8778 return -EOPNOTSUPP;
67fbb16b 8779
4c476991 8780 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 8781}
8782
8783static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8784{
4c476991
JB		 8785 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8786 struct net_device *dev = info->user_ptr[1];
67fbb16b 8787
074ac8df 8788 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8789 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8790 return -EOPNOTSUPP;
67fbb16b 8791
4c476991
JB		 8792 if (!rdev->ops->flush_pmksa)
8793 return -EOPNOTSUPP;
67fbb16b 8794
e35e4d28 8795 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 8796}
8797
109086ce
AN		 8798static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8799{
8800 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8801 struct net_device *dev = info->user_ptr[1];
8802 u8 action_code, dialog_token;
df942e7b 8803 u32 peer_capability = 0;
109086ce
AN		 8804 u16 status_code;
8805 u8 *peer;
31fa97c5 8806 bool initiator;
109086ce
AN		 8807
8808 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8809 !rdev->ops->tdls_mgmt)
8810 return -EOPNOTSUPP;
8811
8812 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8813 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8814 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8815 !info->attrs[NL80211_ATTR_IE] ||
8816 !info->attrs[NL80211_ATTR_MAC])
8817 return -EINVAL;
8818
8819 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8820 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8821 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8822 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 8823 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 8824 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8825 peer_capability =
8826 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 8827
e35e4d28 8828 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 8829 dialog_token, status_code, peer_capability,
31fa97c5 8830 initiator,
e35e4d28
HG		 8831 nla_data(info->attrs[NL80211_ATTR_IE]),
8832 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 8833}
8834
8835static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8836{
8837 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8838 struct net_device *dev = info->user_ptr[1];
8839 enum nl80211_tdls_operation operation;
8840 u8 *peer;
8841
8842 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8843 !rdev->ops->tdls_oper)
8844 return -EOPNOTSUPP;
8845
8846 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8847 !info->attrs[NL80211_ATTR_MAC])
8848 return -EINVAL;
8849
8850 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8851 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8852
e35e4d28 8853 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 8854}
8855
9588bbd5
JM		 8856static int nl80211_remain_on_channel(struct sk_buff *skb,
8857 struct genl_info *info)
8858{
4c476991 8859 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8860 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8861 struct cfg80211_chan_def chandef;
9588bbd5
JM		 8862 struct sk_buff *msg;
8863 void *hdr;
8864 u64 cookie;
683b6d3b 8865 u32 duration;
9588bbd5
JM		 8866 int err;
8867
8868 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8869 !info->attrs[NL80211_ATTR_DURATION])
8870 return -EINVAL;
8871
8872 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8873
ebf348fc
JB		 8874 if (!rdev->ops->remain_on_channel ||
8875 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8876 return -EOPNOTSUPP;
8877
9588bbd5 8878 /*
ebf348fc
JB		 8879 * We should be on that channel for at least a minimum amount of
8880 * time (10ms) but no longer than the driver supports.
9588bbd5 8881 */
ebf348fc 8882 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 8883 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 8884 return -EINVAL;
8885
683b6d3b
JB		 8886 err = nl80211_parse_chandef(rdev, info, &chandef);
8887 if (err)
8888 return err;
9588bbd5
JM		 8889
8890 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8891 if (!msg)
8892 return -ENOMEM;
9588bbd5 8893
15e47304 8894 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 8895 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 8896 if (!hdr) {
8897 err = -ENOBUFS;
9588bbd5
JM		 8898 goto free_msg;
8899 }
8900
683b6d3b
JB		 8901 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8902 duration, &cookie);
9588bbd5
JM		 8903
8904 if (err)
8905 goto free_msg;
8906
2dad624e
ND		 8907 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
8908 NL80211_ATTR_PAD))
9360ffd1 8909 goto nla_put_failure;
9588bbd5
JM		 8910
8911 genlmsg_end(msg, hdr);
4c476991
JB		 8912
8913 return genlmsg_reply(msg, info);
9588bbd5
JM		 8914
8915 nla_put_failure:
8916 err = -ENOBUFS;
8917 free_msg:
8918 nlmsg_free(msg);
9588bbd5
JM		 8919 return err;
8920}
8921
8922static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8923 struct genl_info *info)
8924{
4c476991 8925 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8926 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8927 u64 cookie;
9588bbd5
JM		 8928
8929 if (!info->attrs[NL80211_ATTR_COOKIE])
8930 return -EINVAL;
8931
4c476991
JB		 8932 if (!rdev->ops->cancel_remain_on_channel)
8933 return -EOPNOTSUPP;
9588bbd5 8934
9588bbd5
JM		 8935 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8936
e35e4d28 8937 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8938}
8939
13ae75b1
JM		 8940static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8941 struct genl_info *info)
8942{
13ae75b1 8943 struct cfg80211_bitrate_mask mask;
a7c7fbff 8944 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8945 struct net_device *dev = info->user_ptr[1];
a7c7fbff 8946 int err;
13ae75b1 8947
4c476991
JB		 8948 if (!rdev->ops->set_bitrate_mask)
8949 return -EOPNOTSUPP;
13ae75b1 8950
a7c7fbff
PK		 8951 err = nl80211_parse_tx_bitrate_mask(info, &mask);
8952 if (err)
8953 return err;
13ae75b1 8954
e35e4d28 8955 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8956}
8957
2e161f78 8958static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8959{
4c476991 8960 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8961 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8962 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8963
8964 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8965 return -EINVAL;
8966
2e161f78
JB		 8967 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8968 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8969
71bbc994
JB		 8970 switch (wdev->iftype) {
8971 case NL80211_IFTYPE_STATION:
8972 case NL80211_IFTYPE_ADHOC:
8973 case NL80211_IFTYPE_P2P_CLIENT:
8974 case NL80211_IFTYPE_AP:
8975 case NL80211_IFTYPE_AP_VLAN:
8976 case NL80211_IFTYPE_MESH_POINT:
8977 case NL80211_IFTYPE_P2P_GO:
98104fde 8978 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8979 break;
8980 default:
4c476991 8981 return -EOPNOTSUPP;
71bbc994 8982 }
026331c4
JM		 8983
8984 /* not much point in registering if we can't reply */
4c476991
JB		 8985 if (!rdev->ops->mgmt_tx)
8986 return -EOPNOTSUPP;
026331c4 8987
15e47304 8988 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8989 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8990 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8991}
8992
2e161f78 8993static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8994{
4c476991 8995 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8996 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8997 struct cfg80211_chan_def chandef;
026331c4 8998 int err;
d64d373f 8999 void *hdr = NULL;
026331c4 9000 u64 cookie;
e247bd90 9001 struct sk_buff *msg = NULL;
b176e629
AO		 9002 struct cfg80211_mgmt_tx_params params = {
9003 .dont_wait_for_ack =
9004 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
9005 };
026331c4 9006
683b6d3b 9007 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 9008 return -EINVAL;
9009
4c476991
JB		 9010 if (!rdev->ops->mgmt_tx)
9011 return -EOPNOTSUPP;
026331c4 9012
71bbc994 9013 switch (wdev->iftype) {
ea141b75
AQ		 9014 case NL80211_IFTYPE_P2P_DEVICE:
9015 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
9016 return -EINVAL;
71bbc994
JB		 9017 case NL80211_IFTYPE_STATION:
9018 case NL80211_IFTYPE_ADHOC:
9019 case NL80211_IFTYPE_P2P_CLIENT:
9020 case NL80211_IFTYPE_AP:
9021 case NL80211_IFTYPE_AP_VLAN:
9022 case NL80211_IFTYPE_MESH_POINT:
9023 case NL80211_IFTYPE_P2P_GO:
9024 break;
9025 default:
4c476991 9026 return -EOPNOTSUPP;
71bbc994 9027 }
026331c4 9028
f7ca38df 9029 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 9030 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 9031 return -EINVAL;
b176e629 9032 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 9033
9034 /*
9035 * We should wait on the channel for at least a minimum amount
9036 * of time (10ms) but no longer than the driver supports.
9037 */
b176e629
AO		 9038 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9039 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc 9040 return -EINVAL;
f7ca38df
JB		 9041 }
9042
b176e629 9043 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 9044
b176e629 9045 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 9046 return -EINVAL;
9047
b176e629 9048 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 9049
ea141b75
AQ		 9050 /* get the channel if any has been specified, otherwise pass NULL to
9051 * the driver. The latter will use the current one
9052 */
9053 chandef.chan = NULL;
9054 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9055 err = nl80211_parse_chandef(rdev, info, &chandef);
9056 if (err)
9057 return err;
9058 }
9059
b176e629 9060 if (!chandef.chan && params.offchan)
ea141b75 9061 return -EINVAL;
026331c4 9062
34d22ce2
AO		 9063 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
9064 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
9065
9066 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
9067 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9068 int i;
9069
9070 if (len % sizeof(u16))
9071 return -EINVAL;
9072
9073 params.n_csa_offsets = len / sizeof(u16);
9074 params.csa_offsets =
9075 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9076
9077 /* check that all the offsets fit the frame */
9078 for (i = 0; i < params.n_csa_offsets; i++) {
9079 if (params.csa_offsets[i] >= params.len)
9080 return -EINVAL;
9081 }
9082 }
9083
b176e629 9084 if (!params.dont_wait_for_ack) {
e247bd90
JB		 9085 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9086 if (!msg)
9087 return -ENOMEM;
026331c4 9088
15e47304 9089 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 9090 NL80211_CMD_FRAME);
cb35fba3
DC		 9091 if (!hdr) {
9092 err = -ENOBUFS;
e247bd90
JB		 9093 goto free_msg;
9094 }
026331c4 9095 }
e247bd90 9096
b176e629
AO		 9097 params.chan = chandef.chan;
9098 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 9099 if (err)
9100 goto free_msg;
9101
e247bd90 9102 if (msg) {
2dad624e
ND		 9103 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9104 NL80211_ATTR_PAD))
9360ffd1 9105 goto nla_put_failure;
026331c4 9106
e247bd90
JB		 9107 genlmsg_end(msg, hdr);
9108 return genlmsg_reply(msg, info);
9109 }
9110
9111 return 0;
026331c4
JM		 9112
9113 nla_put_failure:
9114 err = -ENOBUFS;
9115 free_msg:
9116 nlmsg_free(msg);
026331c4
JM		 9117 return err;
9118}
9119
f7ca38df
JB		 9120static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
9121{
9122 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9123 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 9124 u64 cookie;
9125
9126 if (!info->attrs[NL80211_ATTR_COOKIE])
9127 return -EINVAL;
9128
9129 if (!rdev->ops->mgmt_tx_cancel_wait)
9130 return -EOPNOTSUPP;
9131
71bbc994
JB		 9132 switch (wdev->iftype) {
9133 case NL80211_IFTYPE_STATION:
9134 case NL80211_IFTYPE_ADHOC:
9135 case NL80211_IFTYPE_P2P_CLIENT:
9136 case NL80211_IFTYPE_AP:
9137 case NL80211_IFTYPE_AP_VLAN:
9138 case NL80211_IFTYPE_P2P_GO:
98104fde 9139 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 9140 break;
9141 default:
f7ca38df 9142 return -EOPNOTSUPP;
71bbc994 9143 }
f7ca38df
JB		 9144
9145 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9146
e35e4d28 9147 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 9148}
9149
ffb9eb3d
KV		 9150static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9151{
4c476991 9152 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 9153 struct wireless_dev *wdev;
4c476991 9154 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9155 u8 ps_state;
9156 bool state;
9157 int err;
9158
4c476991
JB		 9159 if (!info->attrs[NL80211_ATTR_PS_STATE])
9160 return -EINVAL;
ffb9eb3d
KV		 9161
9162 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9163
4c476991
JB		 9164 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9165 return -EINVAL;
ffb9eb3d
KV		 9166
9167 wdev = dev->ieee80211_ptr;
9168
4c476991
JB		 9169 if (!rdev->ops->set_power_mgmt)
9170 return -EOPNOTSUPP;
ffb9eb3d
KV		 9171
9172 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9173
9174 if (state == wdev->ps)
4c476991 9175 return 0;
ffb9eb3d 9176
e35e4d28 9177 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 9178 if (!err)
9179 wdev->ps = state;
ffb9eb3d
KV		 9180 return err;
9181}
9182
9183static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9184{
4c476991 9185 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 9186 enum nl80211_ps_state ps_state;
9187 struct wireless_dev *wdev;
4c476991 9188 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9189 struct sk_buff *msg;
9190 void *hdr;
9191 int err;
9192
ffb9eb3d
KV		 9193 wdev = dev->ieee80211_ptr;
9194
4c476991
JB		 9195 if (!rdev->ops->set_power_mgmt)
9196 return -EOPNOTSUPP;
ffb9eb3d
KV		 9197
9198 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9199 if (!msg)
9200 return -ENOMEM;
ffb9eb3d 9201
15e47304 9202 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 9203 NL80211_CMD_GET_POWER_SAVE);
9204 if (!hdr) {
4c476991 9205 err = -ENOBUFS;
ffb9eb3d
KV		 9206 goto free_msg;
9207 }
9208
9209 if (wdev->ps)
9210 ps_state = NL80211_PS_ENABLED;
9211 else
9212 ps_state = NL80211_PS_DISABLED;
9213
9360ffd1
DM		 9214 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9215 goto nla_put_failure;
ffb9eb3d
KV		 9216
9217 genlmsg_end(msg, hdr);
4c476991 9218 return genlmsg_reply(msg, info);
ffb9eb3d 9219
4c476991 9220 nla_put_failure:
ffb9eb3d 9221 err = -ENOBUFS;
4c476991 9222 free_msg:
ffb9eb3d 9223 nlmsg_free(msg);
ffb9eb3d
KV		 9224 return err;
9225}
9226
94e860f1
JB		 9227static const struct nla_policy
9228nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 9229 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
9230 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9231 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 9232 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9233 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9234 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 9235};
9236
84f10708 9237static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 9238 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 9239{
9240 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 9241 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9242 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 9243
d9d8b019 9244 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 9245 return -EINVAL;
9246
84f10708
TP		 9247 if (!rdev->ops->set_cqm_txe_config)
9248 return -EOPNOTSUPP;
9249
9250 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9251 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9252 return -EOPNOTSUPP;
9253
e35e4d28 9254 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 9255}
9256
d6dc1a38
JO		 9257static int nl80211_set_cqm_rssi(struct genl_info *info,
9258 s32 threshold, u32 hysteresis)
9259{
4c476991 9260 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9261 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9262 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 9263
9264 if (threshold > 0)
9265 return -EINVAL;
9266
1da5fcc8
JB		 9267 /* disabling - hysteresis should also be zero then */
9268 if (threshold == 0)
9269 hysteresis = 0;
d6dc1a38 9270
4c476991
JB		 9271 if (!rdev->ops->set_cqm_rssi_config)
9272 return -EOPNOTSUPP;
d6dc1a38 9273
074ac8df 9274 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9275 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9276 return -EOPNOTSUPP;
d6dc1a38 9277
e35e4d28 9278 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 9279}
9280
9281static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9282{
9283 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9284 struct nlattr *cqm;
9285 int err;
9286
9287 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 9288 if (!cqm)
9289 return -EINVAL;
d6dc1a38
JO		 9290
9291 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
9292 nl80211_attr_cqm_policy);
9293 if (err)
1da5fcc8 9294 return err;
d6dc1a38
JO		 9295
9296 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9297 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 9298 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9299 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 9300
1da5fcc8
JB		 9301 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
9302 }
9303
9304 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9305 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9306 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9307 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9308 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9309 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9310
9311 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9312 }
9313
9314 return -EINVAL;
d6dc1a38
JO		 9315}
9316
6e0bd6c3
RL		 9317static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9318{
9319 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9320 struct net_device *dev = info->user_ptr[1];
9321 struct ocb_setup setup = {};
9322 int err;
9323
9324 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9325 if (err)
9326 return err;
9327
9328 return cfg80211_join_ocb(rdev, dev, &setup);
9329}
9330
9331static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9332{
9333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9334 struct net_device *dev = info->user_ptr[1];
9335
9336 return cfg80211_leave_ocb(rdev, dev);
9337}
9338
29cbe68c
JB		 9339static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9340{
9341 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9342 struct net_device *dev = info->user_ptr[1];
9343 struct mesh_config cfg;
c80d545d 9344 struct mesh_setup setup;
29cbe68c
JB		 9345 int err;
9346
9347 /* start with default */
9348 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9349 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9350
24bdd9f4 9351 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9352 /* and parse parameters if given */
24bdd9f4 9353 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9354 if (err)
9355 return err;
9356 }
9357
9358 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9359 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9360 return -EINVAL;
9361
c80d545d
JC		 9362 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9363 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9364
4bb62344
CYY		 9365 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9366 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9367 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9368 return -EINVAL;
9369
9bdbf04d
MP		 9370 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9371 setup.beacon_interval =
9372 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12d20fc9
PK		 9373
9374 err = cfg80211_validate_beacon_int(rdev, setup.beacon_interval);
9375 if (err)
9376 return err;
9bdbf04d
MP		 9377 }
9378
9379 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9380 setup.dtim_period =
9381 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9382 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9383 return -EINVAL;
9384 }
9385
c80d545d
JC		 9386 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9387 /* parse additional setup parameters if given */
9388 err = nl80211_parse_mesh_setup(info, &setup);
9389 if (err)
9390 return err;
9391 }
9392
d37bb18a
TP		 9393 if (setup.user_mpm)
9394 cfg.auto_open_plinks = false;
9395
cc1d2806 9396 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 9397 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9398 if (err)
9399 return err;
cc1d2806
JB		 9400 } else {
9401 /* cfg80211_join_mesh() will sort it out */
683b6d3b 9402 setup.chandef.chan = NULL;
cc1d2806
JB		 9403 }
9404
ffb3cf30
AN		 9405 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9406 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9407 int n_rates =
9408 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9409 struct ieee80211_supported_band *sband;
9410
9411 if (!setup.chandef.chan)
9412 return -EINVAL;
9413
9414 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9415
9416 err = ieee80211_get_ratemask(sband, rates, n_rates,
9417 &setup.basic_rates);
9418 if (err)
9419 return err;
9420 }
9421
8564e382
JB		 9422 if (info->attrs[NL80211_ATTR_TX_RATES]) {
9423 err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
9424 if (err)
9425 return err;
9426
9427 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
9428 &setup.beacon_rate);
9429 if (err)
9430 return err;
9431 }
9432
c80d545d 9433 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 9434}
9435
9436static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9437{
9438 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9439 struct net_device *dev = info->user_ptr[1];
9440
9441 return cfg80211_leave_mesh(rdev, dev);
9442}
9443
dfb89c56 9444#ifdef CONFIG_PM
bb92d199
AK		 9445static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9446 struct cfg80211_registered_device *rdev)
9447{
6abb9cb9 9448 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 9449 struct nlattr *nl_pats, *nl_pat;
9450 int i, pat_len;
9451
6abb9cb9 9452 if (!wowlan->n_patterns)
bb92d199
AK		 9453 return 0;
9454
9455 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9456 if (!nl_pats)
9457 return -ENOBUFS;
9458
6abb9cb9 9459 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 9460 nl_pat = nla_nest_start(msg, i + 1);
9461 if (!nl_pat)
9462 return -ENOBUFS;
6abb9cb9 9463 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 9464 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 9465 wowlan->patterns[i].mask) ||
50ac6607
AK		 9466 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9467 wowlan->patterns[i].pattern) ||
9468 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 9469 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 9470 return -ENOBUFS;
9471 nla_nest_end(msg, nl_pat);
9472 }
9473 nla_nest_end(msg, nl_pats);
9474
9475 return 0;
9476}
9477
2a0e047e
JB		 9478static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9479 struct cfg80211_wowlan_tcp *tcp)
9480{
9481 struct nlattr *nl_tcp;
9482
9483 if (!tcp)
9484 return 0;
9485
9486 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9487 if (!nl_tcp)
9488 return -ENOBUFS;
9489
930345ea
JB		 9490 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9491 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 9492 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9493 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9494 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9495 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9496 tcp->payload_len, tcp->payload) ||
9497 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9498 tcp->data_interval) ||
9499 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9500 tcp->wake_len, tcp->wake_data) ||
9501 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9502 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9503 return -ENOBUFS;
9504
9505 if (tcp->payload_seq.len &&
9506 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9507 sizeof(tcp->payload_seq), &tcp->payload_seq))
9508 return -ENOBUFS;
9509
9510 if (tcp->payload_tok.len &&
9511 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9512 sizeof(tcp->payload_tok) + tcp->tokens_size,
9513 &tcp->payload_tok))
9514 return -ENOBUFS;
9515
e248ad30
JB		 9516 nla_nest_end(msg, nl_tcp);
9517
2a0e047e
JB		 9518 return 0;
9519}
9520
75453ccb
LC		 9521static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9522 struct cfg80211_sched_scan_request *req)
9523{
3b06d277 9524 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 9525 int i;
9526
9527 if (!req)
9528 return 0;
9529
9530 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9531 if (!nd)
9532 return -ENOBUFS;
9533
3b06d277
AS		 9534 if (req->n_scan_plans == 1 &&
9535 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9536 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9537 return -ENOBUFS;
9538
21fea567
LC		 9539 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9540 return -ENOBUFS;
9541
75453ccb
LC		 9542 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9543 if (!freqs)
9544 return -ENOBUFS;
9545
53b18980
JB		 9546 for (i = 0; i < req->n_channels; i++) {
9547 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9548 return -ENOBUFS;
9549 }
75453ccb
LC		 9550
9551 nla_nest_end(msg, freqs);
9552
9553 if (req->n_match_sets) {
9554 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
76e1fb4b
JB		 9555 if (!matches)
9556 return -ENOBUFS;
9557
75453ccb
LC		 9558 for (i = 0; i < req->n_match_sets; i++) {
9559 match = nla_nest_start(msg, i);
76e1fb4b
JB		 9560 if (!match)
9561 return -ENOBUFS;
9562
53b18980
JB		 9563 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9564 req->match_sets[i].ssid.ssid_len,
9565 req->match_sets[i].ssid.ssid))
9566 return -ENOBUFS;
75453ccb
LC		 9567 nla_nest_end(msg, match);
9568 }
9569 nla_nest_end(msg, matches);
9570 }
9571
3b06d277
AS		 9572 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9573 if (!scan_plans)
9574 return -ENOBUFS;
9575
9576 for (i = 0; i < req->n_scan_plans; i++) {
9577 scan_plan = nla_nest_start(msg, i + 1);
76e1fb4b
JB		 9578 if (!scan_plan)
9579 return -ENOBUFS;
9580
3b06d277
AS		 9581 if (!scan_plan ||
9582 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9583 req->scan_plans[i].interval) ||
9584 (req->scan_plans[i].iterations &&
9585 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9586 req->scan_plans[i].iterations)))
9587 return -ENOBUFS;
9588 nla_nest_end(msg, scan_plan);
9589 }
9590 nla_nest_end(msg, scan_plans);
9591
75453ccb
LC		 9592 nla_nest_end(msg, nd);
9593
9594 return 0;
9595}
9596
ff1b6e69
JB		 9597static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9598{
9599 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9600 struct sk_buff *msg;
9601 void *hdr;
2a0e047e 9602 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 9603
964dc9e2 9604 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 9605 return -EOPNOTSUPP;
9606
6abb9cb9 9607 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 9608 /* adjust size to have room for all the data */
6abb9cb9
JB		 9609 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9610 rdev->wiphy.wowlan_config->tcp->payload_len +
9611 rdev->wiphy.wowlan_config->tcp->wake_len +
9612 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 9613 }
9614
9615 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 9616 if (!msg)
9617 return -ENOMEM;
9618
15e47304 9619 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 9620 NL80211_CMD_GET_WOWLAN);
9621 if (!hdr)
9622 goto nla_put_failure;
9623
6abb9cb9 9624 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 9625 struct nlattr *nl_wowlan;
9626
9627 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9628 if (!nl_wowlan)
9629 goto nla_put_failure;
9630
6abb9cb9 9631 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 9632 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 9633 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 9634 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 9635 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 9636 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 9637 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 9638 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 9639 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 9640 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 9641 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 9642 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 9643 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 9644 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9645 goto nla_put_failure;
2a0e047e 9646
bb92d199
AK		 9647 if (nl80211_send_wowlan_patterns(msg, rdev))
9648 goto nla_put_failure;
2a0e047e 9649
6abb9cb9
JB		 9650 if (nl80211_send_wowlan_tcp(msg,
9651 rdev->wiphy.wowlan_config->tcp))
2a0e047e 9652 goto nla_put_failure;
75453ccb
LC		 9653
9654 if (nl80211_send_wowlan_nd(
9655 msg,
9656 rdev->wiphy.wowlan_config->nd_config))
9657 goto nla_put_failure;
2a0e047e 9658
ff1b6e69
JB		 9659 nla_nest_end(msg, nl_wowlan);
9660 }
9661
9662 genlmsg_end(msg, hdr);
9663 return genlmsg_reply(msg, info);
9664
9665nla_put_failure:
9666 nlmsg_free(msg);
9667 return -ENOBUFS;
9668}
9669
2a0e047e
JB		 9670static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9671 struct nlattr *attr,
9672 struct cfg80211_wowlan *trig)
9673{
9674 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9675 struct cfg80211_wowlan_tcp *cfg;
9676 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9677 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9678 u32 size;
9679 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9680 int err, port;
9681
964dc9e2 9682 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 9683 return -EINVAL;
9684
9685 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9686 nla_data(attr), nla_len(attr),
9687 nl80211_wowlan_tcp_policy);
9688 if (err)
9689 return err;
9690
9691 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9692 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9693 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9694 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9695 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9696 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9697 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9698 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9699 return -EINVAL;
9700
9701 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 9702 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 9703 return -EINVAL;
9704
9705 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 9706 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 9707 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 9708 return -EINVAL;
9709
9710 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9711 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9712 return -EINVAL;
9713
9714 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9715 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9716 return -EINVAL;
9717
9718 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9719 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9720
9721 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9722 tokens_size = tokln - sizeof(*tok);
9723
9724 if (!tok->len || tokens_size % tok->len)
9725 return -EINVAL;
964dc9e2 9726 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9727 return -EINVAL;
964dc9e2 9728 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9729 return -EINVAL;
964dc9e2 9730 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9731 return -EINVAL;
964dc9e2 9732 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9733 return -EINVAL;
9734 if (tok->offset + tok->len > data_size)
9735 return -EINVAL;
9736 }
9737
9738 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9739 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9740 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9741 return -EINVAL;
9742 if (seq->len == 0 || seq->len > 4)
9743 return -EINVAL;
9744 if (seq->len + seq->offset > data_size)
9745 return -EINVAL;
9746 }
9747
9748 size = sizeof(*cfg);
9749 size += data_size;
9750 size += wake_size + wake_mask_size;
9751 size += tokens_size;
9752
9753 cfg = kzalloc(size, GFP_KERNEL);
9754 if (!cfg)
9755 return -ENOMEM;
67b61f6c
JB		 9756 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9757 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 9758 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9759 ETH_ALEN);
9760 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9761 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9762 else
9763 port = 0;
9764#ifdef CONFIG_INET
9765 /* allocate a socket and port for it and use it */
9766 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9767 IPPROTO_TCP, &cfg->sock, 1);
9768 if (err) {
9769 kfree(cfg);
9770 return err;
9771 }
9772 if (inet_csk_get_port(cfg->sock->sk, port)) {
9773 sock_release(cfg->sock);
9774 kfree(cfg);
9775 return -EADDRINUSE;
9776 }
9777 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9778#else
9779 if (!port) {
9780 kfree(cfg);
9781 return -EINVAL;
9782 }
9783 cfg->src_port = port;
9784#endif
9785
9786 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9787 cfg->payload_len = data_size;
9788 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9789 memcpy((void *)cfg->payload,
9790 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9791 data_size);
9792 if (seq)
9793 cfg->payload_seq = *seq;
9794 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9795 cfg->wake_len = wake_size;
9796 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9797 memcpy((void *)cfg->wake_data,
9798 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9799 wake_size);
9800 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9801 data_size + wake_size;
9802 memcpy((void *)cfg->wake_mask,
9803 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9804 wake_mask_size);
9805 if (tok) {
9806 cfg->tokens_size = tokens_size;
9807 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9808 }
9809
9810 trig->tcp = cfg;
9811
9812 return 0;
9813}
9814
8cd4d456
LC		 9815static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9816 const struct wiphy_wowlan_support *wowlan,
9817 struct nlattr *attr,
9818 struct cfg80211_wowlan *trig)
9819{
9820 struct nlattr **tb;
9821 int err;
9822
9823 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9824 if (!tb)
9825 return -ENOMEM;
9826
9827 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9828 err = -EOPNOTSUPP;
9829 goto out;
9830 }
9831
9832 err = nla_parse(tb, NL80211_ATTR_MAX,
9833 nla_data(attr), nla_len(attr),
9834 nl80211_policy);
9835 if (err)
9836 goto out;
9837
ad2b26ab 9838 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9839 err = PTR_ERR_OR_ZERO(trig->nd_config);
9840 if (err)
9841 trig->nd_config = NULL;
9842
9843out:
9844 kfree(tb);
9845 return err;
9846}
9847
ff1b6e69
JB		 9848static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9849{
9850 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9851 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9852 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9853 struct cfg80211_wowlan *ntrig;
964dc9e2 9854 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9855 int err, i;
6abb9cb9 9856 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 9857 bool regular = false;
ff1b6e69 9858
964dc9e2 9859 if (!wowlan)
ff1b6e69
JB		 9860 return -EOPNOTSUPP;
9861
ae33bd81
JB		 9862 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9863 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9864 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9865 goto set_wakeup;
9866 }
ff1b6e69
JB		 9867
9868 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9869 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9870 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9871 nl80211_wowlan_policy);
9872 if (err)
9873 return err;
9874
9875 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9876 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9877 return -EINVAL;
9878 new_triggers.any = true;
9879 }
9880
9881 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9882 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9883 return -EINVAL;
9884 new_triggers.disconnect = true;
98fc4386 9885 regular = true;
ff1b6e69
JB		 9886 }
9887
9888 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9889 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9890 return -EINVAL;
9891 new_triggers.magic_pkt = true;
98fc4386 9892 regular = true;
ff1b6e69
JB		 9893 }
9894
77dbbb13
JB		 9895 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9896 return -EINVAL;
9897
9898 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9899 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9900 return -EINVAL;
9901 new_triggers.gtk_rekey_failure = true;
98fc4386 9902 regular = true;
77dbbb13
JB		 9903 }
9904
9905 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9906 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9907 return -EINVAL;
9908 new_triggers.eap_identity_req = true;
98fc4386 9909 regular = true;
77dbbb13
JB		 9910 }
9911
9912 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9913 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9914 return -EINVAL;
9915 new_triggers.four_way_handshake = true;
98fc4386 9916 regular = true;
77dbbb13
JB		 9917 }
9918
9919 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9920 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9921 return -EINVAL;
9922 new_triggers.rfkill_release = true;
98fc4386 9923 regular = true;
77dbbb13
JB		 9924 }
9925
ff1b6e69
JB		 9926 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9927 struct nlattr *pat;
9928 int n_patterns = 0;
bb92d199 9929 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9930 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 9931
98fc4386
JB		 9932 regular = true;
9933
ff1b6e69
JB		 9934 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9935 rem)
9936 n_patterns++;
9937 if (n_patterns > wowlan->n_patterns)
9938 return -EINVAL;
9939
9940 new_triggers.patterns = kcalloc(n_patterns,
9941 sizeof(new_triggers.patterns[0]),
9942 GFP_KERNEL);
9943 if (!new_triggers.patterns)
9944 return -ENOMEM;
9945
9946 new_triggers.n_patterns = n_patterns;
9947 i = 0;
9948
9949 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9950 rem) {
922bd80f
JB		 9951 u8 *mask_pat;
9952
50ac6607
AK		 9953 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9954 nla_len(pat), NULL);
ff1b6e69 9955 err = -EINVAL;
50ac6607
AK		 9956 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9957 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9958 goto error;
50ac6607 9959 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9960 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9961 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9962 goto error;
9963 if (pat_len > wowlan->pattern_max_len ||
9964 pat_len < wowlan->pattern_min_len)
9965 goto error;
9966
50ac6607 9967 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9968 pkt_offset = 0;
9969 else
9970 pkt_offset = nla_get_u32(
50ac6607 9971 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9972 if (pkt_offset > wowlan->max_pkt_offset)
9973 goto error;
9974 new_triggers.patterns[i].pkt_offset = pkt_offset;
9975
922bd80f
JB		 9976 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9977 if (!mask_pat) {
ff1b6e69
JB		 9978 err = -ENOMEM;
9979 goto error;
9980 }
922bd80f
JB		 9981 new_triggers.patterns[i].mask = mask_pat;
9982 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9983 mask_len);
922bd80f
JB		 9984 mask_pat += mask_len;
9985 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9986 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9987 memcpy(mask_pat,
50ac6607 9988 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9989 pat_len);
9990 i++;
9991 }
9992 }
9993
2a0e047e 9994 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 9995 regular = true;
2a0e047e
JB		 9996 err = nl80211_parse_wowlan_tcp(
9997 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9998 &new_triggers);
9999 if (err)
10000 goto error;
10001 }
10002
8cd4d456 10003 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 10004 regular = true;
8cd4d456
LC		 10005 err = nl80211_parse_wowlan_nd(
10006 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
10007 &new_triggers);
10008 if (err)
10009 goto error;
10010 }
10011
98fc4386
JB		 10012 /* The 'any' trigger means the device continues operating more or less
10013 * as in its normal operation mode and wakes up the host on most of the
10014 * normal interrupts (like packet RX, ...)
10015 * It therefore makes little sense to combine with the more constrained
10016 * wakeup trigger modes.
10017 */
10018 if (new_triggers.any && regular) {
10019 err = -EINVAL;
10020 goto error;
10021 }
10022
ae33bd81
JB		 10023 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
10024 if (!ntrig) {
10025 err = -ENOMEM;
10026 goto error;
ff1b6e69 10027 }
ae33bd81 10028 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 10029 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 10030
ae33bd81 10031 set_wakeup:
6abb9cb9
JB		 10032 if (rdev->ops->set_wakeup &&
10033 prev_enabled != !!rdev->wiphy.wowlan_config)
10034 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 10035
ff1b6e69
JB		 10036 return 0;
10037 error:
10038 for (i = 0; i < new_triggers.n_patterns; i++)
10039 kfree(new_triggers.patterns[i].mask);
10040 kfree(new_triggers.patterns);
2a0e047e
JB		 10041 if (new_triggers.tcp && new_triggers.tcp->sock)
10042 sock_release(new_triggers.tcp->sock);
10043 kfree(new_triggers.tcp);
e5dbe070 10044 kfree(new_triggers.nd_config);
ff1b6e69
JB		 10045 return err;
10046}
dfb89c56 10047#endif
ff1b6e69 10048
be29b99a
AK		 10049static int nl80211_send_coalesce_rules(struct sk_buff *msg,
10050 struct cfg80211_registered_device *rdev)
10051{
10052 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
10053 int i, j, pat_len;
10054 struct cfg80211_coalesce_rules *rule;
10055
10056 if (!rdev->coalesce->n_rules)
10057 return 0;
10058
10059 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
10060 if (!nl_rules)
10061 return -ENOBUFS;
10062
10063 for (i = 0; i < rdev->coalesce->n_rules; i++) {
10064 nl_rule = nla_nest_start(msg, i + 1);
10065 if (!nl_rule)
10066 return -ENOBUFS;
10067
10068 rule = &rdev->coalesce->rules[i];
10069 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
10070 rule->delay))
10071 return -ENOBUFS;
10072
10073 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
10074 rule->condition))
10075 return -ENOBUFS;
10076
10077 nl_pats = nla_nest_start(msg,
10078 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
10079 if (!nl_pats)
10080 return -ENOBUFS;
10081
10082 for (j = 0; j < rule->n_patterns; j++) {
10083 nl_pat = nla_nest_start(msg, j + 1);
10084 if (!nl_pat)
10085 return -ENOBUFS;
10086 pat_len = rule->patterns[j].pattern_len;
10087 if (nla_put(msg, NL80211_PKTPAT_MASK,
10088 DIV_ROUND_UP(pat_len, 8),
10089 rule->patterns[j].mask) ||
10090 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10091 rule->patterns[j].pattern) ||
10092 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10093 rule->patterns[j].pkt_offset))
10094 return -ENOBUFS;
10095 nla_nest_end(msg, nl_pat);
10096 }
10097 nla_nest_end(msg, nl_pats);
10098 nla_nest_end(msg, nl_rule);
10099 }
10100 nla_nest_end(msg, nl_rules);
10101
10102 return 0;
10103}
10104
10105static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
10106{
10107 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10108 struct sk_buff *msg;
10109 void *hdr;
10110
10111 if (!rdev->wiphy.coalesce)
10112 return -EOPNOTSUPP;
10113
10114 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10115 if (!msg)
10116 return -ENOMEM;
10117
10118 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10119 NL80211_CMD_GET_COALESCE);
10120 if (!hdr)
10121 goto nla_put_failure;
10122
10123 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
10124 goto nla_put_failure;
10125
10126 genlmsg_end(msg, hdr);
10127 return genlmsg_reply(msg, info);
10128
10129nla_put_failure:
10130 nlmsg_free(msg);
10131 return -ENOBUFS;
10132}
10133
10134void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
10135{
10136 struct cfg80211_coalesce *coalesce = rdev->coalesce;
10137 int i, j;
10138 struct cfg80211_coalesce_rules *rule;
10139
10140 if (!coalesce)
10141 return;
10142
10143 for (i = 0; i < coalesce->n_rules; i++) {
10144 rule = &coalesce->rules[i];
10145 for (j = 0; j < rule->n_patterns; j++)
10146 kfree(rule->patterns[j].mask);
10147 kfree(rule->patterns);
10148 }
10149 kfree(coalesce->rules);
10150 kfree(coalesce);
10151 rdev->coalesce = NULL;
10152}
10153
10154static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10155 struct nlattr *rule,
10156 struct cfg80211_coalesce_rules *new_rule)
10157{
10158 int err, i;
10159 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10160 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10161 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10162 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10163
10164 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
10165 nla_len(rule), nl80211_coalesce_policy);
10166 if (err)
10167 return err;
10168
10169 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10170 new_rule->delay =
10171 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10172 if (new_rule->delay > coalesce->max_delay)
10173 return -EINVAL;
10174
10175 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10176 new_rule->condition =
10177 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10178 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10179 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10180 return -EINVAL;
10181
10182 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10183 return -EINVAL;
10184
10185 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10186 rem)
10187 n_patterns++;
10188 if (n_patterns > coalesce->n_patterns)
10189 return -EINVAL;
10190
10191 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10192 GFP_KERNEL);
10193 if (!new_rule->patterns)
10194 return -ENOMEM;
10195
10196 new_rule->n_patterns = n_patterns;
10197 i = 0;
10198
10199 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10200 rem) {
922bd80f
JB		 10201 u8 *mask_pat;
10202
be29b99a
AK		 10203 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
10204 nla_len(pat), NULL);
10205 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10206 !pat_tb[NL80211_PKTPAT_PATTERN])
10207 return -EINVAL;
10208 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10209 mask_len = DIV_ROUND_UP(pat_len, 8);
10210 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10211 return -EINVAL;
10212 if (pat_len > coalesce->pattern_max_len ||
10213 pat_len < coalesce->pattern_min_len)
10214 return -EINVAL;
10215
10216 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10217 pkt_offset = 0;
10218 else
10219 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10220 if (pkt_offset > coalesce->max_pkt_offset)
10221 return -EINVAL;
10222 new_rule->patterns[i].pkt_offset = pkt_offset;
10223
922bd80f
JB		 10224 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10225 if (!mask_pat)
be29b99a 10226 return -ENOMEM;
922bd80f
JB		 10227
10228 new_rule->patterns[i].mask = mask_pat;
10229 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10230 mask_len);
10231
10232 mask_pat += mask_len;
10233 new_rule->patterns[i].pattern = mask_pat;
be29b99a 10234 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 10235 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10236 pat_len);
be29b99a
AK		 10237 i++;
10238 }
10239
10240 return 0;
10241}
10242
10243static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10244{
10245 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10246 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10247 struct cfg80211_coalesce new_coalesce = {};
10248 struct cfg80211_coalesce *n_coalesce;
10249 int err, rem_rule, n_rules = 0, i, j;
10250 struct nlattr *rule;
10251 struct cfg80211_coalesce_rules *tmp_rule;
10252
10253 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10254 return -EOPNOTSUPP;
10255
10256 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10257 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 10258 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 10259 return 0;
10260 }
10261
10262 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10263 rem_rule)
10264 n_rules++;
10265 if (n_rules > coalesce->n_rules)
10266 return -EINVAL;
10267
10268 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10269 GFP_KERNEL);
10270 if (!new_coalesce.rules)
10271 return -ENOMEM;
10272
10273 new_coalesce.n_rules = n_rules;
10274 i = 0;
10275
10276 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10277 rem_rule) {
10278 err = nl80211_parse_coalesce_rule(rdev, rule,
10279 &new_coalesce.rules[i]);
10280 if (err)
10281 goto error;
10282
10283 i++;
10284 }
10285
a1056b1b 10286 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 10287 if (err)
10288 goto error;
10289
10290 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10291 if (!n_coalesce) {
10292 err = -ENOMEM;
10293 goto error;
10294 }
10295 cfg80211_rdev_free_coalesce(rdev);
10296 rdev->coalesce = n_coalesce;
10297
10298 return 0;
10299error:
10300 for (i = 0; i < new_coalesce.n_rules; i++) {
10301 tmp_rule = &new_coalesce.rules[i];
10302 for (j = 0; j < tmp_rule->n_patterns; j++)
10303 kfree(tmp_rule->patterns[j].mask);
10304 kfree(tmp_rule->patterns);
10305 }
10306 kfree(new_coalesce.rules);
10307
10308 return err;
10309}
10310
e5497d76
JB		 10311static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10312{
10313 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10314 struct net_device *dev = info->user_ptr[1];
10315 struct wireless_dev *wdev = dev->ieee80211_ptr;
10316 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10317 struct cfg80211_gtk_rekey_data rekey_data;
10318 int err;
10319
10320 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10321 return -EINVAL;
10322
10323 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
10324 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
10325 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
10326 nl80211_rekey_policy);
10327 if (err)
10328 return err;
10329
10330 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10331 return -ERANGE;
10332 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10333 return -ERANGE;
10334 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10335 return -ERANGE;
10336
78f686ca
JB		 10337 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10338 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10339 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 10340
10341 wdev_lock(wdev);
10342 if (!wdev->current_bss) {
10343 err = -ENOTCONN;
10344 goto out;
10345 }
10346
10347 if (!rdev->ops->set_rekey_data) {
10348 err = -EOPNOTSUPP;
10349 goto out;
10350 }
10351
e35e4d28 10352 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 10353 out:
10354 wdev_unlock(wdev);
10355 return err;
10356}
10357
28946da7
JB		 10358static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10359 struct genl_info *info)
10360{
10361 struct net_device *dev = info->user_ptr[1];
10362 struct wireless_dev *wdev = dev->ieee80211_ptr;
10363
10364 if (wdev->iftype != NL80211_IFTYPE_AP &&
10365 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10366 return -EINVAL;
10367
15e47304 10368 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 10369 return -EBUSY;
10370
15e47304 10371 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 10372 return 0;
10373}
10374
7f6cf311
JB		 10375static int nl80211_probe_client(struct sk_buff *skb,
10376 struct genl_info *info)
10377{
10378 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10379 struct net_device *dev = info->user_ptr[1];
10380 struct wireless_dev *wdev = dev->ieee80211_ptr;
10381 struct sk_buff *msg;
10382 void *hdr;
10383 const u8 *addr;
10384 u64 cookie;
10385 int err;
10386
10387 if (wdev->iftype != NL80211_IFTYPE_AP &&
10388 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10389 return -EOPNOTSUPP;
10390
10391 if (!info->attrs[NL80211_ATTR_MAC])
10392 return -EINVAL;
10393
10394 if (!rdev->ops->probe_client)
10395 return -EOPNOTSUPP;
10396
10397 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10398 if (!msg)
10399 return -ENOMEM;
10400
15e47304 10401 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 10402 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 10403 if (!hdr) {
10404 err = -ENOBUFS;
7f6cf311
JB		 10405 goto free_msg;
10406 }
10407
10408 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10409
e35e4d28 10410 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 10411 if (err)
10412 goto free_msg;
10413
2dad624e
ND		 10414 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10415 NL80211_ATTR_PAD))
9360ffd1 10416 goto nla_put_failure;
7f6cf311
JB		 10417
10418 genlmsg_end(msg, hdr);
10419
10420 return genlmsg_reply(msg, info);
10421
10422 nla_put_failure:
10423 err = -ENOBUFS;
10424 free_msg:
10425 nlmsg_free(msg);
10426 return err;
10427}
10428
5e760230
JB		 10429static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10430{
10431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 10432 struct cfg80211_beacon_registration *reg, *nreg;
10433 int rv;
5e760230
JB		 10434
10435 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10436 return -EOPNOTSUPP;
10437
37c73b5f
BG		 10438 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10439 if (!nreg)
10440 return -ENOMEM;
10441
10442 /* First, check if already registered. */
10443 spin_lock_bh(&rdev->beacon_registrations_lock);
10444 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10445 if (reg->nlportid == info->snd_portid) {
10446 rv = -EALREADY;
10447 goto out_err;
10448 }
10449 }
10450 /* Add it to the list */
10451 nreg->nlportid = info->snd_portid;
10452 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 10453
37c73b5f 10454 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10455
10456 return 0;
37c73b5f
BG		 10457out_err:
10458 spin_unlock_bh(&rdev->beacon_registrations_lock);
10459 kfree(nreg);
10460 return rv;
5e760230
JB		 10461}
10462
98104fde
JB		 10463static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10464{
10465 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10466 struct wireless_dev *wdev = info->user_ptr[1];
10467 int err;
10468
10469 if (!rdev->ops->start_p2p_device)
10470 return -EOPNOTSUPP;
10471
10472 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10473 return -EOPNOTSUPP;
10474
10475 if (wdev->p2p_started)
10476 return 0;
10477
b6a55015
LC		 10478 if (rfkill_blocked(rdev->rfkill))
10479 return -ERFKILL;
98104fde 10480
eeb126e9 10481 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 10482 if (err)
10483 return err;
10484
10485 wdev->p2p_started = true;
98104fde 10486 rdev->opencount++;
98104fde
JB		 10487
10488 return 0;
10489}
10490
10491static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10492{
10493 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10494 struct wireless_dev *wdev = info->user_ptr[1];
10495
10496 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10497 return -EOPNOTSUPP;
10498
10499 if (!rdev->ops->stop_p2p_device)
10500 return -EOPNOTSUPP;
10501
f9f47529 10502 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 10503
10504 return 0;
10505}
10506
3713b4e3
JB		 10507static int nl80211_get_protocol_features(struct sk_buff *skb,
10508 struct genl_info *info)
10509{
10510 void *hdr;
10511 struct sk_buff *msg;
10512
10513 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10514 if (!msg)
10515 return -ENOMEM;
10516
10517 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10518 NL80211_CMD_GET_PROTOCOL_FEATURES);
10519 if (!hdr)
10520 goto nla_put_failure;
10521
10522 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
10523 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
10524 goto nla_put_failure;
10525
10526 genlmsg_end(msg, hdr);
10527 return genlmsg_reply(msg, info);
10528
10529 nla_put_failure:
10530 kfree_skb(msg);
10531 return -ENOBUFS;
10532}
10533
355199e0
JM		 10534static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
10535{
10536 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10537 struct cfg80211_update_ft_ies_params ft_params;
10538 struct net_device *dev = info->user_ptr[1];
10539
10540 if (!rdev->ops->update_ft_ies)
10541 return -EOPNOTSUPP;
10542
10543 if (!info->attrs[NL80211_ATTR_MDID] ||
10544 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
10545 return -EINVAL;
10546
10547 memset(&ft_params, 0, sizeof(ft_params));
10548 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10549 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10550 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10551
10552 return rdev_update_ft_ies(rdev, dev, &ft_params);
10553}
10554
5de17984
AS		 10555static int nl80211_crit_protocol_start(struct sk_buff *skb,
10556 struct genl_info *info)
10557{
10558 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10559 struct wireless_dev *wdev = info->user_ptr[1];
10560 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10561 u16 duration;
10562 int ret;
10563
10564 if (!rdev->ops->crit_proto_start)
10565 return -EOPNOTSUPP;
10566
10567 if (WARN_ON(!rdev->ops->crit_proto_stop))
10568 return -EINVAL;
10569
10570 if (rdev->crit_proto_nlportid)
10571 return -EBUSY;
10572
10573 /* determine protocol if provided */
10574 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10575 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10576
10577 if (proto >= NUM_NL80211_CRIT_PROTO)
10578 return -EINVAL;
10579
10580 /* timeout must be provided */
10581 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10582 return -EINVAL;
10583
10584 duration =
10585 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10586
10587 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10588 return -ERANGE;
10589
10590 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10591 if (!ret)
10592 rdev->crit_proto_nlportid = info->snd_portid;
10593
10594 return ret;
10595}
10596
10597static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10598 struct genl_info *info)
10599{
10600 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10601 struct wireless_dev *wdev = info->user_ptr[1];
10602
10603 if (!rdev->ops->crit_proto_stop)
10604 return -EOPNOTSUPP;
10605
10606 if (rdev->crit_proto_nlportid) {
10607 rdev->crit_proto_nlportid = 0;
10608 rdev_crit_proto_stop(rdev, wdev);
10609 }
10610 return 0;
10611}
10612
ad7e718c
JB		 10613static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10614{
10615 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10616 struct wireless_dev *wdev =
10617 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10618 int i, err;
10619 u32 vid, subcmd;
10620
10621 if (!rdev->wiphy.vendor_commands)
10622 return -EOPNOTSUPP;
10623
10624 if (IS_ERR(wdev)) {
10625 err = PTR_ERR(wdev);
10626 if (err != -EINVAL)
10627 return err;
10628 wdev = NULL;
10629 } else if (wdev->wiphy != &rdev->wiphy) {
10630 return -EINVAL;
10631 }
10632
10633 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10634 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10635 return -EINVAL;
10636
10637 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10638 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10639 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10640 const struct wiphy_vendor_command *vcmd;
10641 void *data = NULL;
10642 int len = 0;
10643
10644 vcmd = &rdev->wiphy.vendor_commands[i];
10645
10646 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10647 continue;
10648
10649 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10650 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10651 if (!wdev)
10652 return -EINVAL;
10653 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10654 !wdev->netdev)
10655 return -EINVAL;
10656
10657 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10658 if (wdev->netdev &&
10659 !netif_running(wdev->netdev))
10660 return -ENETDOWN;
10661 if (!wdev->netdev && !wdev->p2p_started)
10662 return -ENETDOWN;
10663 }
7bdbe400
JB		 10664
10665 if (!vcmd->doit)
10666 return -EOPNOTSUPP;
ad7e718c
JB		 10667 } else {
10668 wdev = NULL;
10669 }
10670
10671 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10672 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10673 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10674 }
10675
10676 rdev->cur_cmd_info = info;
10677 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10678 data, len);
10679 rdev->cur_cmd_info = NULL;
10680 return err;
10681 }
10682
10683 return -EOPNOTSUPP;
10684}
10685
7bdbe400
JB		 10686static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10687 struct netlink_callback *cb,
10688 struct cfg80211_registered_device **rdev,
10689 struct wireless_dev **wdev)
10690{
10691 u32 vid, subcmd;
10692 unsigned int i;
10693 int vcmd_idx = -1;
10694 int err;
10695 void *data = NULL;
10696 unsigned int data_len = 0;
10697
10698 rtnl_lock();
10699
10700 if (cb->args[0]) {
10701 /* subtract the 1 again here */
10702 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10703 struct wireless_dev *tmp;
10704
10705 if (!wiphy) {
10706 err = -ENODEV;
10707 goto out_unlock;
10708 }
10709 *rdev = wiphy_to_rdev(wiphy);
10710 *wdev = NULL;
10711
10712 if (cb->args[1]) {
53873f13 10713 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
7bdbe400
JB		 10714 if (tmp->identifier == cb->args[1] - 1) {
10715 *wdev = tmp;
10716 break;
10717 }
10718 }
10719 }
10720
10721 /* keep rtnl locked in successful case */
10722 return 0;
10723 }
10724
10725 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10726 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10727 nl80211_policy);
10728 if (err)
10729 goto out_unlock;
10730
10731 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10732 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10733 err = -EINVAL;
10734 goto out_unlock;
10735 }
10736
10737 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10738 nl80211_fam.attrbuf);
10739 if (IS_ERR(*wdev))
10740 *wdev = NULL;
10741
10742 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10743 nl80211_fam.attrbuf);
10744 if (IS_ERR(*rdev)) {
10745 err = PTR_ERR(*rdev);
10746 goto out_unlock;
10747 }
10748
10749 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10750 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10751
10752 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10753 const struct wiphy_vendor_command *vcmd;
10754
10755 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10756
10757 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10758 continue;
10759
10760 if (!vcmd->dumpit) {
10761 err = -EOPNOTSUPP;
10762 goto out_unlock;
10763 }
10764
10765 vcmd_idx = i;
10766 break;
10767 }
10768
10769 if (vcmd_idx < 0) {
10770 err = -EOPNOTSUPP;
10771 goto out_unlock;
10772 }
10773
10774 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10775 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10776 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10777 }
10778
10779 /* 0 is the first index - add 1 to parse only once */
10780 cb->args[0] = (*rdev)->wiphy_idx + 1;
10781 /* add 1 to know if it was NULL */
10782 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10783 cb->args[2] = vcmd_idx;
10784 cb->args[3] = (unsigned long)data;
10785 cb->args[4] = data_len;
10786
10787 /* keep rtnl locked in successful case */
10788 return 0;
10789 out_unlock:
10790 rtnl_unlock();
10791 return err;
10792}
10793
10794static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10795 struct netlink_callback *cb)
10796{
10797 struct cfg80211_registered_device *rdev;
10798 struct wireless_dev *wdev;
10799 unsigned int vcmd_idx;
10800 const struct wiphy_vendor_command *vcmd;
10801 void *data;
10802 int data_len;
10803 int err;
10804 struct nlattr *vendor_data;
10805
10806 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10807 if (err)
10808 return err;
10809
10810 vcmd_idx = cb->args[2];
10811 data = (void *)cb->args[3];
10812 data_len = cb->args[4];
10813 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10814
10815 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10816 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10817 if (!wdev)
10818 return -EINVAL;
10819 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10820 !wdev->netdev)
10821 return -EINVAL;
10822
10823 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10824 if (wdev->netdev &&
10825 !netif_running(wdev->netdev))
10826 return -ENETDOWN;
10827 if (!wdev->netdev && !wdev->p2p_started)
10828 return -ENETDOWN;
10829 }
10830 }
10831
10832 while (1) {
10833 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10834 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10835 NL80211_CMD_VENDOR);
10836 if (!hdr)
10837 break;
10838
10839 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 10840 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
10841 wdev_id(wdev),
10842 NL80211_ATTR_PAD))) {
7bdbe400
JB		 10843 genlmsg_cancel(skb, hdr);
10844 break;
10845 }
10846
10847 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10848 if (!vendor_data) {
10849 genlmsg_cancel(skb, hdr);
10850 break;
10851 }
10852
10853 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10854 (unsigned long *)&cb->args[5]);
10855 nla_nest_end(skb, vendor_data);
10856
10857 if (err == -ENOBUFS || err == -ENOENT) {
10858 genlmsg_cancel(skb, hdr);
10859 break;
10860 } else if (err) {
10861 genlmsg_cancel(skb, hdr);
10862 goto out;
10863 }
10864
10865 genlmsg_end(skb, hdr);
10866 }
10867
10868 err = skb->len;
10869 out:
10870 rtnl_unlock();
10871 return err;
10872}
10873
ad7e718c
JB		 10874struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10875 enum nl80211_commands cmd,
10876 enum nl80211_attrs attr,
10877 int approxlen)
10878{
f26cbf40 10879 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 10880
10881 if (WARN_ON(!rdev->cur_cmd_info))
10882 return NULL;
10883
6c09e791 10884 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 10885 rdev->cur_cmd_info->snd_portid,
10886 rdev->cur_cmd_info->snd_seq,
567ffc35 10887 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 10888}
10889EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10890
10891int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10892{
10893 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10894 void *hdr = ((void **)skb->cb)[1];
10895 struct nlattr *data = ((void **)skb->cb)[2];
10896
bd8c78e7
JB		 10897 /* clear CB data for netlink core to own from now on */
10898 memset(skb->cb, 0, sizeof(skb->cb));
10899
ad7e718c
JB		 10900 if (WARN_ON(!rdev->cur_cmd_info)) {
10901 kfree_skb(skb);
10902 return -EINVAL;
10903 }
10904
10905 nla_nest_end(skb, data);
10906 genlmsg_end(skb, hdr);
10907 return genlmsg_reply(skb, rdev->cur_cmd_info);
10908}
10909EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10910
fa9ffc74
KP		 10911static int nl80211_set_qos_map(struct sk_buff *skb,
10912 struct genl_info *info)
10913{
10914 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10915 struct cfg80211_qos_map *qos_map = NULL;
10916 struct net_device *dev = info->user_ptr[1];
10917 u8 *pos, len, num_des, des_len, des;
10918 int ret;
10919
10920 if (!rdev->ops->set_qos_map)
10921 return -EOPNOTSUPP;
10922
10923 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10924 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10925 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10926
10927 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10928 len > IEEE80211_QOS_MAP_LEN_MAX)
10929 return -EINVAL;
10930
10931 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10932 if (!qos_map)
10933 return -ENOMEM;
10934
10935 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10936 if (num_des) {
10937 des_len = num_des *
10938 sizeof(struct cfg80211_dscp_exception);
10939 memcpy(qos_map->dscp_exception, pos, des_len);
10940 qos_map->num_des = num_des;
10941 for (des = 0; des < num_des; des++) {
10942 if (qos_map->dscp_exception[des].up > 7) {
10943 kfree(qos_map);
10944 return -EINVAL;
10945 }
10946 }
10947 pos += des_len;
10948 }
10949 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10950 }
10951
10952 wdev_lock(dev->ieee80211_ptr);
10953 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10954 if (!ret)
10955 ret = rdev_set_qos_map(rdev, dev, qos_map);
10956 wdev_unlock(dev->ieee80211_ptr);
10957
10958 kfree(qos_map);
10959 return ret;
10960}
10961
960d01ac
JB		 10962static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10963{
10964 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10965 struct net_device *dev = info->user_ptr[1];
10966 struct wireless_dev *wdev = dev->ieee80211_ptr;
10967 const u8 *peer;
10968 u8 tsid, up;
10969 u16 admitted_time = 0;
10970 int err;
10971
723e73ac 10972 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 10973 return -EOPNOTSUPP;
10974
10975 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10976 !info->attrs[NL80211_ATTR_USER_PRIO])
10977 return -EINVAL;
10978
10979 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10980 if (tsid >= IEEE80211_NUM_TIDS)
10981 return -EINVAL;
10982
10983 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10984 if (up >= IEEE80211_NUM_UPS)
10985 return -EINVAL;
10986
10987 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 10988 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 10989 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 10990 * need more attributes for that (e.g. BA session requirement);
10991 * change the WMM adminssion test above to allow both then
960d01ac
JB		 10992 */
10993 return -EINVAL;
10994 }
10995
10996 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10997
10998 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10999 admitted_time =
11000 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
11001 if (!admitted_time)
11002 return -EINVAL;
11003 }
11004
11005 wdev_lock(wdev);
11006 switch (wdev->iftype) {
11007 case NL80211_IFTYPE_STATION:
11008 case NL80211_IFTYPE_P2P_CLIENT:
11009 if (wdev->current_bss)
11010 break;
11011 err = -ENOTCONN;
11012 goto out;
11013 default:
11014 err = -EOPNOTSUPP;
11015 goto out;
11016 }
11017
11018 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
11019
11020 out:
11021 wdev_unlock(wdev);
11022 return err;
11023}
11024
11025static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
11026{
11027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11028 struct net_device *dev = info->user_ptr[1];
11029 struct wireless_dev *wdev = dev->ieee80211_ptr;
11030 const u8 *peer;
11031 u8 tsid;
11032 int err;
11033
11034 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
11035 return -EINVAL;
11036
11037 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
11038 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11039
11040 wdev_lock(wdev);
11041 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
11042 wdev_unlock(wdev);
11043
11044 return err;
11045}
11046
1057d35e
AN		 11047static int nl80211_tdls_channel_switch(struct sk_buff *skb,
11048 struct genl_info *info)
11049{
11050 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11051 struct net_device *dev = info->user_ptr[1];
11052 struct wireless_dev *wdev = dev->ieee80211_ptr;
11053 struct cfg80211_chan_def chandef = {};
11054 const u8 *addr;
11055 u8 oper_class;
11056 int err;
11057
11058 if (!rdev->ops->tdls_channel_switch ||
11059 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
11060 return -EOPNOTSUPP;
11061
11062 switch (dev->ieee80211_ptr->iftype) {
11063 case NL80211_IFTYPE_STATION:
11064 case NL80211_IFTYPE_P2P_CLIENT:
11065 break;
11066 default:
11067 return -EOPNOTSUPP;
11068 }
11069
11070 if (!info->attrs[NL80211_ATTR_MAC] ||
11071 !info->attrs[NL80211_ATTR_OPER_CLASS])
11072 return -EINVAL;
11073
11074 err = nl80211_parse_chandef(rdev, info, &chandef);
11075 if (err)
11076 return err;
11077
11078 /*
11079 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
11080 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
11081 * specification is not defined for them.
11082 */
57fbcce3 11083 if (chandef.chan->band == NL80211_BAND_2GHZ &&
1057d35e
AN		 11084 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
11085 chandef.width != NL80211_CHAN_WIDTH_20)
11086 return -EINVAL;
11087
11088 /* we will be active on the TDLS link */
923b352f
AN		 11089 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
11090 wdev->iftype))
1057d35e
AN		 11091 return -EINVAL;
11092
11093 /* don't allow switching to DFS channels */
11094 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
11095 return -EINVAL;
11096
11097 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11098 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
11099
11100 wdev_lock(wdev);
11101 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
11102 wdev_unlock(wdev);
11103
11104 return err;
11105}
11106
11107static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
11108 struct genl_info *info)
11109{
11110 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11111 struct net_device *dev = info->user_ptr[1];
11112 struct wireless_dev *wdev = dev->ieee80211_ptr;
11113 const u8 *addr;
11114
11115 if (!rdev->ops->tdls_channel_switch ||
11116 !rdev->ops->tdls_cancel_channel_switch ||
11117 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
11118 return -EOPNOTSUPP;
11119
11120 switch (dev->ieee80211_ptr->iftype) {
11121 case NL80211_IFTYPE_STATION:
11122 case NL80211_IFTYPE_P2P_CLIENT:
11123 break;
11124 default:
11125 return -EOPNOTSUPP;
11126 }
11127
11128 if (!info->attrs[NL80211_ATTR_MAC])
11129 return -EINVAL;
11130
11131 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11132
11133 wdev_lock(wdev);
11134 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
11135 wdev_unlock(wdev);
11136
11137 return 0;
11138}
11139
4c476991
JB		 11140#define NL80211_FLAG_NEED_WIPHY 0x01
11141#define NL80211_FLAG_NEED_NETDEV 0x02
11142#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 11143#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
11144#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
11145 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 11146#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 11147/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 11148#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
11149 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 11150#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 11151
f84f771d 11152static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 11153 struct genl_info *info)
11154{
11155 struct cfg80211_registered_device *rdev;
89a54e48 11156 struct wireless_dev *wdev;
4c476991 11157 struct net_device *dev;
4c476991
JB		 11158 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
11159
11160 if (rtnl)
11161 rtnl_lock();
11162
11163 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 11164 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 11165 if (IS_ERR(rdev)) {
11166 if (rtnl)
11167 rtnl_unlock();
11168 return PTR_ERR(rdev);
11169 }
11170 info->user_ptr[0] = rdev;
1bf614ef
JB		 11171 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
11172 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 11173 ASSERT_RTNL();
11174
89a54e48
JB		 11175 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
11176 info->attrs);
11177 if (IS_ERR(wdev)) {
4c476991
JB		 11178 if (rtnl)
11179 rtnl_unlock();
89a54e48 11180 return PTR_ERR(wdev);
4c476991 11181 }
89a54e48 11182
89a54e48 11183 dev = wdev->netdev;
f26cbf40 11184 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 11185
1bf614ef
JB		 11186 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
11187 if (!dev) {
1bf614ef
JB		 11188 if (rtnl)
11189 rtnl_unlock();
11190 return -EINVAL;
11191 }
11192
11193 info->user_ptr[1] = dev;
11194 } else {
11195 info->user_ptr[1] = wdev;
41265714 11196 }
1bf614ef
JB		 11197
11198 if (dev) {
11199 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
11200 !netif_running(dev)) {
1bf614ef
JB		 11201 if (rtnl)
11202 rtnl_unlock();
11203 return -ENETDOWN;
11204 }
11205
11206 dev_hold(dev);
98104fde
JB		 11207 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
11208 if (!wdev->p2p_started) {
98104fde
JB		 11209 if (rtnl)
11210 rtnl_unlock();
11211 return -ENETDOWN;
11212 }
41265714 11213 }
89a54e48 11214
4c476991 11215 info->user_ptr[0] = rdev;
4c476991
JB		 11216 }
11217
11218 return 0;
11219}
11220
f84f771d 11221static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 11222 struct genl_info *info)
11223{
1bf614ef
JB		 11224 if (info->user_ptr[1]) {
11225 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
11226 struct wireless_dev *wdev = info->user_ptr[1];
11227
11228 if (wdev->netdev)
11229 dev_put(wdev->netdev);
11230 } else {
11231 dev_put(info->user_ptr[1]);
11232 }
11233 }
5393b917 11234
4c476991
JB		 11235 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
11236 rtnl_unlock();
5393b917
JB		 11237
11238 /* If needed, clear the netlink message payload from the SKB
11239 * as it might contain key data that shouldn't stick around on
11240 * the heap after the SKB is freed. The netlink message header
11241 * is still needed for further processing, so leave it intact.
11242 */
11243 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
11244 struct nlmsghdr *nlh = nlmsg_hdr(skb);
11245
11246 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
11247 }
4c476991
JB		 11248}
11249
4534de83 11250static const struct genl_ops nl80211_ops[] = {
55682965
JB		 11251 {
11252 .cmd = NL80211_CMD_GET_WIPHY,
11253 .doit = nl80211_get_wiphy,
11254 .dumpit = nl80211_dump_wiphy,
86e8cf98 11255 .done = nl80211_dump_wiphy_done,
55682965
JB		 11256 .policy = nl80211_policy,
11257 /* can be retrieved by unprivileged users */
5fe231e8
JB		 11258 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11259 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11260 },
11261 {
11262 .cmd = NL80211_CMD_SET_WIPHY,
11263 .doit = nl80211_set_wiphy,
11264 .policy = nl80211_policy,
5617c6cd 11265 .flags = GENL_UNS_ADMIN_PERM,
4c476991 11266 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 11267 },
11268 {
11269 .cmd = NL80211_CMD_GET_INTERFACE,
11270 .doit = nl80211_get_interface,
11271 .dumpit = nl80211_dump_interface,
11272 .policy = nl80211_policy,
11273 /* can be retrieved by unprivileged users */
5fe231e8
JB		 11274 .internal_flags = NL80211_FLAG_NEED_WDEV |
11275 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11276 },
11277 {
11278 .cmd = NL80211_CMD_SET_INTERFACE,
11279 .doit = nl80211_set_interface,
11280 .policy = nl80211_policy,
5617c6cd 11281 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11282 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11283 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11284 },
11285 {
11286 .cmd = NL80211_CMD_NEW_INTERFACE,
11287 .doit = nl80211_new_interface,
11288 .policy = nl80211_policy,
5617c6cd 11289 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11290 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11291 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11292 },
11293 {
11294 .cmd = NL80211_CMD_DEL_INTERFACE,
11295 .doit = nl80211_del_interface,
11296 .policy = nl80211_policy,
5617c6cd 11297 .flags = GENL_UNS_ADMIN_PERM,
84efbb84 11298 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11299 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11300 },
11301 {
11302 .cmd = NL80211_CMD_GET_KEY,
11303 .doit = nl80211_get_key,
11304 .policy = nl80211_policy,
5617c6cd 11305 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11306 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11307 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11308 },
11309 {
11310 .cmd = NL80211_CMD_SET_KEY,
11311 .doit = nl80211_set_key,
11312 .policy = nl80211_policy,
5617c6cd 11313 .flags = GENL_UNS_ADMIN_PERM,
41265714 11314 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11315 NL80211_FLAG_NEED_RTNL |
11316 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 11317 },
11318 {
11319 .cmd = NL80211_CMD_NEW_KEY,
11320 .doit = nl80211_new_key,
11321 .policy = nl80211_policy,
5617c6cd 11322 .flags = GENL_UNS_ADMIN_PERM,
41265714 11323 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11324 NL80211_FLAG_NEED_RTNL |
11325 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 11326 },
11327 {
11328 .cmd = NL80211_CMD_DEL_KEY,
11329 .doit = nl80211_del_key,
11330 .policy = nl80211_policy,
5617c6cd 11331 .flags = GENL_UNS_ADMIN_PERM,
41265714 11332 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11333 NL80211_FLAG_NEED_RTNL,
55682965 11334 },
ed1b6cc7
JB		 11335 {
11336 .cmd = NL80211_CMD_SET_BEACON,
11337 .policy = nl80211_policy,
5617c6cd 11338 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11339 .doit = nl80211_set_beacon,
2b5f8b0b 11340 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11341 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11342 },
11343 {
8860020e 11344 .cmd = NL80211_CMD_START_AP,
ed1b6cc7 11345 .policy = nl80211_policy,
5617c6cd 11346 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11347 .doit = nl80211_start_ap,
2b5f8b0b 11348 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11349 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11350 },
11351 {
8860020e 11352 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7 11353 .policy = nl80211_policy,
5617c6cd 11354 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11355 .doit = nl80211_stop_ap,
2b5f8b0b 11356 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11357 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 11358 },
5727ef1b
JB		 11359 {
11360 .cmd = NL80211_CMD_GET_STATION,
11361 .doit = nl80211_get_station,
2ec600d6 11362 .dumpit = nl80211_dump_station,
5727ef1b 11363 .policy = nl80211_policy,
4c476991
JB		 11364 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11365 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11366 },
11367 {
11368 .cmd = NL80211_CMD_SET_STATION,
11369 .doit = nl80211_set_station,
11370 .policy = nl80211_policy,
5617c6cd 11371 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11372 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11373 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11374 },
11375 {
11376 .cmd = NL80211_CMD_NEW_STATION,
11377 .doit = nl80211_new_station,
11378 .policy = nl80211_policy,
5617c6cd 11379 .flags = GENL_UNS_ADMIN_PERM,
41265714 11380 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11381 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11382 },
11383 {
11384 .cmd = NL80211_CMD_DEL_STATION,
11385 .doit = nl80211_del_station,
11386 .policy = nl80211_policy,
5617c6cd 11387 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11388 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11389 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11390 },
11391 {
11392 .cmd = NL80211_CMD_GET_MPATH,
11393 .doit = nl80211_get_mpath,
11394 .dumpit = nl80211_dump_mpath,
11395 .policy = nl80211_policy,
5617c6cd 11396 .flags = GENL_UNS_ADMIN_PERM,
41265714 11397 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11398 NL80211_FLAG_NEED_RTNL,
2ec600d6 11399 },
66be7d2b
HR		 11400 {
11401 .cmd = NL80211_CMD_GET_MPP,
11402 .doit = nl80211_get_mpp,
11403 .dumpit = nl80211_dump_mpp,
11404 .policy = nl80211_policy,
5617c6cd 11405 .flags = GENL_UNS_ADMIN_PERM,
66be7d2b
HR		 11406 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11407 NL80211_FLAG_NEED_RTNL,
11408 },
2ec600d6
LCC		 11409 {
11410 .cmd = NL80211_CMD_SET_MPATH,
11411 .doit = nl80211_set_mpath,
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,
2ec600d6
LCC		 11416 },
11417 {
11418 .cmd = NL80211_CMD_NEW_MPATH,
11419 .doit = nl80211_new_mpath,
11420 .policy = nl80211_policy,
5617c6cd 11421 .flags = GENL_UNS_ADMIN_PERM,
41265714 11422 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11423 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11424 },
11425 {
11426 .cmd = NL80211_CMD_DEL_MPATH,
11427 .doit = nl80211_del_mpath,
11428 .policy = nl80211_policy,
5617c6cd 11429 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11430 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11431 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 11432 },
11433 {
11434 .cmd = NL80211_CMD_SET_BSS,
11435 .doit = nl80211_set_bss,
11436 .policy = nl80211_policy,
5617c6cd 11437 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11438 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11439 NL80211_FLAG_NEED_RTNL,
b2e1b302 11440 },
f130347c
LR		 11441 {
11442 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 11443 .doit = nl80211_get_reg_do,
11444 .dumpit = nl80211_get_reg_dump,
f130347c 11445 .policy = nl80211_policy,
5fe231e8 11446 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 11447 /* can be retrieved by unprivileged users */
11448 },
b6863036 11449#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 11450 {
11451 .cmd = NL80211_CMD_SET_REG,
11452 .doit = nl80211_set_reg,
11453 .policy = nl80211_policy,
11454 .flags = GENL_ADMIN_PERM,
5fe231e8 11455 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 11456 },
b6863036 11457#endif
b2e1b302
LR		 11458 {
11459 .cmd = NL80211_CMD_REQ_SET_REG,
11460 .doit = nl80211_req_set_reg,
11461 .policy = nl80211_policy,
93da9cc1 11462 .flags = GENL_ADMIN_PERM,
11463 },
11464 {
24bdd9f4
JC		 11465 .cmd = NL80211_CMD_GET_MESH_CONFIG,
11466 .doit = nl80211_get_mesh_config,
93da9cc1 11467 .policy = nl80211_policy,
11468 /* can be retrieved by unprivileged users */
2b5f8b0b 11469 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11470 NL80211_FLAG_NEED_RTNL,
93da9cc1 11471 },
11472 {
24bdd9f4
JC		 11473 .cmd = NL80211_CMD_SET_MESH_CONFIG,
11474 .doit = nl80211_update_mesh_config,
93da9cc1 11475 .policy = nl80211_policy,
5617c6cd 11476 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c 11477 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11478 NL80211_FLAG_NEED_RTNL,
9aed3cc1 11479 },
2a519311
JB		 11480 {
11481 .cmd = NL80211_CMD_TRIGGER_SCAN,
11482 .doit = nl80211_trigger_scan,
11483 .policy = nl80211_policy,
5617c6cd 11484 .flags = GENL_UNS_ADMIN_PERM,
fd014284 11485 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11486 NL80211_FLAG_NEED_RTNL,
2a519311 11487 },
91d3ab46
VK		 11488 {
11489 .cmd = NL80211_CMD_ABORT_SCAN,
11490 .doit = nl80211_abort_scan,
11491 .policy = nl80211_policy,
5617c6cd 11492 .flags = GENL_UNS_ADMIN_PERM,
91d3ab46
VK		 11493 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11494 NL80211_FLAG_NEED_RTNL,
11495 },
2a519311
JB		 11496 {
11497 .cmd = NL80211_CMD_GET_SCAN,
11498 .policy = nl80211_policy,
11499 .dumpit = nl80211_dump_scan,
11500 },
807f8a8c
LC		 11501 {
11502 .cmd = NL80211_CMD_START_SCHED_SCAN,
11503 .doit = nl80211_start_sched_scan,
11504 .policy = nl80211_policy,
5617c6cd 11505 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 11506 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11507 NL80211_FLAG_NEED_RTNL,
11508 },
11509 {
11510 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
11511 .doit = nl80211_stop_sched_scan,
11512 .policy = nl80211_policy,
5617c6cd 11513 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 11514 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11515 NL80211_FLAG_NEED_RTNL,
11516 },
636a5d36
JM		 11517 {
11518 .cmd = NL80211_CMD_AUTHENTICATE,
11519 .doit = nl80211_authenticate,
11520 .policy = nl80211_policy,
5617c6cd 11521 .flags = GENL_UNS_ADMIN_PERM,
41265714 11522 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11523 NL80211_FLAG_NEED_RTNL |
11524 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 11525 },
11526 {
11527 .cmd = NL80211_CMD_ASSOCIATE,
11528 .doit = nl80211_associate,
11529 .policy = nl80211_policy,
5617c6cd 11530 .flags = GENL_UNS_ADMIN_PERM,
41265714 11531 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11532 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11533 },
11534 {
11535 .cmd = NL80211_CMD_DEAUTHENTICATE,
11536 .doit = nl80211_deauthenticate,
11537 .policy = nl80211_policy,
5617c6cd 11538 .flags = GENL_UNS_ADMIN_PERM,
41265714 11539 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11540 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11541 },
11542 {
11543 .cmd = NL80211_CMD_DISASSOCIATE,
11544 .doit = nl80211_disassociate,
11545 .policy = nl80211_policy,
5617c6cd 11546 .flags = GENL_UNS_ADMIN_PERM,
41265714 11547 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11548 NL80211_FLAG_NEED_RTNL,
636a5d36 11549 },
04a773ad
JB		 11550 {
11551 .cmd = NL80211_CMD_JOIN_IBSS,
11552 .doit = nl80211_join_ibss,
11553 .policy = nl80211_policy,
5617c6cd 11554 .flags = GENL_UNS_ADMIN_PERM,
41265714 11555 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11556 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 11557 },
11558 {
11559 .cmd = NL80211_CMD_LEAVE_IBSS,
11560 .doit = nl80211_leave_ibss,
11561 .policy = nl80211_policy,
5617c6cd 11562 .flags = GENL_UNS_ADMIN_PERM,
41265714 11563 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11564 NL80211_FLAG_NEED_RTNL,
04a773ad 11565 },
aff89a9b
JB		 11566#ifdef CONFIG_NL80211_TESTMODE
11567 {
11568 .cmd = NL80211_CMD_TESTMODE,
11569 .doit = nl80211_testmode_do,
71063f0e 11570 .dumpit = nl80211_testmode_dump,
aff89a9b 11571 .policy = nl80211_policy,
5617c6cd 11572 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11573 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11574 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 11575 },
11576#endif
b23aa676
SO		 11577 {
11578 .cmd = NL80211_CMD_CONNECT,
11579 .doit = nl80211_connect,
11580 .policy = nl80211_policy,
5617c6cd 11581 .flags = GENL_UNS_ADMIN_PERM,
41265714 11582 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11583 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 11584 },
11585 {
11586 .cmd = NL80211_CMD_DISCONNECT,
11587 .doit = nl80211_disconnect,
11588 .policy = nl80211_policy,
5617c6cd 11589 .flags = GENL_UNS_ADMIN_PERM,
41265714 11590 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11591 NL80211_FLAG_NEED_RTNL,
b23aa676 11592 },
463d0183
JB		 11593 {
11594 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11595 .doit = nl80211_wiphy_netns,
11596 .policy = nl80211_policy,
5617c6cd 11597 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11598 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11599 NL80211_FLAG_NEED_RTNL,
463d0183 11600 },
61fa713c
HS		 11601 {
11602 .cmd = NL80211_CMD_GET_SURVEY,
11603 .policy = nl80211_policy,
11604 .dumpit = nl80211_dump_survey,
11605 },
67fbb16b
SO		 11606 {
11607 .cmd = NL80211_CMD_SET_PMKSA,
11608 .doit = nl80211_setdel_pmksa,
11609 .policy = nl80211_policy,
5617c6cd 11610 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11611 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11612 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11613 },
11614 {
11615 .cmd = NL80211_CMD_DEL_PMKSA,
11616 .doit = nl80211_setdel_pmksa,
11617 .policy = nl80211_policy,
5617c6cd 11618 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11619 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11620 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11621 },
11622 {
11623 .cmd = NL80211_CMD_FLUSH_PMKSA,
11624 .doit = nl80211_flush_pmksa,
11625 .policy = nl80211_policy,
5617c6cd 11626 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11627 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11628 NL80211_FLAG_NEED_RTNL,
67fbb16b 11629 },
9588bbd5
JM		 11630 {
11631 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11632 .doit = nl80211_remain_on_channel,
11633 .policy = nl80211_policy,
5617c6cd 11634 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11635 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11636 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 11637 },
11638 {
11639 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11640 .doit = nl80211_cancel_remain_on_channel,
11641 .policy = nl80211_policy,
5617c6cd 11642 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11643 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11644 NL80211_FLAG_NEED_RTNL,
9588bbd5 11645 },
13ae75b1
JM		 11646 {
11647 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11648 .doit = nl80211_set_tx_bitrate_mask,
11649 .policy = nl80211_policy,
5617c6cd 11650 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11651 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11652 NL80211_FLAG_NEED_RTNL,
13ae75b1 11653 },
026331c4 11654 {
2e161f78
JB		 11655 .cmd = NL80211_CMD_REGISTER_FRAME,
11656 .doit = nl80211_register_mgmt,
026331c4 11657 .policy = nl80211_policy,
5617c6cd 11658 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11659 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11660 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 11661 },
11662 {
2e161f78
JB		 11663 .cmd = NL80211_CMD_FRAME,
11664 .doit = nl80211_tx_mgmt,
026331c4 11665 .policy = nl80211_policy,
5617c6cd 11666 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11667 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 11668 NL80211_FLAG_NEED_RTNL,
11669 },
11670 {
11671 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11672 .doit = nl80211_tx_mgmt_cancel_wait,
11673 .policy = nl80211_policy,
5617c6cd 11674 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11675 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11676 NL80211_FLAG_NEED_RTNL,
026331c4 11677 },
ffb9eb3d
KV		 11678 {
11679 .cmd = NL80211_CMD_SET_POWER_SAVE,
11680 .doit = nl80211_set_power_save,
11681 .policy = nl80211_policy,
5617c6cd 11682 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11683 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11684 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 11685 },
11686 {
11687 .cmd = NL80211_CMD_GET_POWER_SAVE,
11688 .doit = nl80211_get_power_save,
11689 .policy = nl80211_policy,
11690 /* can be retrieved by unprivileged users */
4c476991
JB		 11691 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11692 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 11693 },
d6dc1a38
JO		 11694 {
11695 .cmd = NL80211_CMD_SET_CQM,
11696 .doit = nl80211_set_cqm,
11697 .policy = nl80211_policy,
5617c6cd 11698 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11699 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11700 NL80211_FLAG_NEED_RTNL,
d6dc1a38 11701 },
f444de05
JB		 11702 {
11703 .cmd = NL80211_CMD_SET_CHANNEL,
11704 .doit = nl80211_set_channel,
11705 .policy = nl80211_policy,
5617c6cd 11706 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11707 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11708 NL80211_FLAG_NEED_RTNL,
f444de05 11709 },
e8347eba
BJ		 11710 {
11711 .cmd = NL80211_CMD_SET_WDS_PEER,
11712 .doit = nl80211_set_wds_peer,
11713 .policy = nl80211_policy,
5617c6cd 11714 .flags = GENL_UNS_ADMIN_PERM,
43b19952
JB		 11715 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11716 NL80211_FLAG_NEED_RTNL,
e8347eba 11717 },
29cbe68c
JB		 11718 {
11719 .cmd = NL80211_CMD_JOIN_MESH,
11720 .doit = nl80211_join_mesh,
11721 .policy = nl80211_policy,
5617c6cd 11722 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 11723 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11724 NL80211_FLAG_NEED_RTNL,
11725 },
11726 {
11727 .cmd = NL80211_CMD_LEAVE_MESH,
11728 .doit = nl80211_leave_mesh,
11729 .policy = nl80211_policy,
5617c6cd 11730 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 11731 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11732 NL80211_FLAG_NEED_RTNL,
11733 },
6e0bd6c3
RL		 11734 {
11735 .cmd = NL80211_CMD_JOIN_OCB,
11736 .doit = nl80211_join_ocb,
11737 .policy = nl80211_policy,
5617c6cd 11738 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 11739 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11740 NL80211_FLAG_NEED_RTNL,
11741 },
11742 {
11743 .cmd = NL80211_CMD_LEAVE_OCB,
11744 .doit = nl80211_leave_ocb,
11745 .policy = nl80211_policy,
5617c6cd 11746 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 11747 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11748 NL80211_FLAG_NEED_RTNL,
11749 },
dfb89c56 11750#ifdef CONFIG_PM
ff1b6e69
JB		 11751 {
11752 .cmd = NL80211_CMD_GET_WOWLAN,
11753 .doit = nl80211_get_wowlan,
11754 .policy = nl80211_policy,
11755 /* can be retrieved by unprivileged users */
11756 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11757 NL80211_FLAG_NEED_RTNL,
11758 },
11759 {
11760 .cmd = NL80211_CMD_SET_WOWLAN,
11761 .doit = nl80211_set_wowlan,
11762 .policy = nl80211_policy,
5617c6cd 11763 .flags = GENL_UNS_ADMIN_PERM,
ff1b6e69
JB		 11764 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11765 NL80211_FLAG_NEED_RTNL,
11766 },
dfb89c56 11767#endif
e5497d76
JB		 11768 {
11769 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11770 .doit = nl80211_set_rekey_data,
11771 .policy = nl80211_policy,
5617c6cd 11772 .flags = GENL_UNS_ADMIN_PERM,
e5497d76 11773 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11774 NL80211_FLAG_NEED_RTNL |
11775 NL80211_FLAG_CLEAR_SKB,
e5497d76 11776 },
109086ce
AN		 11777 {
11778 .cmd = NL80211_CMD_TDLS_MGMT,
11779 .doit = nl80211_tdls_mgmt,
11780 .policy = nl80211_policy,
5617c6cd 11781 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 11782 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11783 NL80211_FLAG_NEED_RTNL,
11784 },
11785 {
11786 .cmd = NL80211_CMD_TDLS_OPER,
11787 .doit = nl80211_tdls_oper,
11788 .policy = nl80211_policy,
5617c6cd 11789 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 11790 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11791 NL80211_FLAG_NEED_RTNL,
11792 },
28946da7
JB		 11793 {
11794 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11795 .doit = nl80211_register_unexpected_frame,
11796 .policy = nl80211_policy,
5617c6cd 11797 .flags = GENL_UNS_ADMIN_PERM,
28946da7
JB		 11798 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11799 NL80211_FLAG_NEED_RTNL,
11800 },
7f6cf311
JB		 11801 {
11802 .cmd = NL80211_CMD_PROBE_CLIENT,
11803 .doit = nl80211_probe_client,
11804 .policy = nl80211_policy,
5617c6cd 11805 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11806 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 11807 NL80211_FLAG_NEED_RTNL,
11808 },
5e760230
JB		 11809 {
11810 .cmd = NL80211_CMD_REGISTER_BEACONS,
11811 .doit = nl80211_register_beacons,
11812 .policy = nl80211_policy,
5617c6cd 11813 .flags = GENL_UNS_ADMIN_PERM,
5e760230
JB		 11814 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11815 NL80211_FLAG_NEED_RTNL,
11816 },
1d9d9213
SW		 11817 {
11818 .cmd = NL80211_CMD_SET_NOACK_MAP,
11819 .doit = nl80211_set_noack_map,
11820 .policy = nl80211_policy,
5617c6cd 11821 .flags = GENL_UNS_ADMIN_PERM,
1d9d9213
SW		 11822 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11823 NL80211_FLAG_NEED_RTNL,
11824 },
98104fde
JB		 11825 {
11826 .cmd = NL80211_CMD_START_P2P_DEVICE,
11827 .doit = nl80211_start_p2p_device,
11828 .policy = nl80211_policy,
5617c6cd 11829 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 11830 .internal_flags = NL80211_FLAG_NEED_WDEV |
11831 NL80211_FLAG_NEED_RTNL,
11832 },
11833 {
11834 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11835 .doit = nl80211_stop_p2p_device,
11836 .policy = nl80211_policy,
5617c6cd 11837 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 11838 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11839 NL80211_FLAG_NEED_RTNL,
11840 },
f4e583c8
AQ		 11841 {
11842 .cmd = NL80211_CMD_SET_MCAST_RATE,
11843 .doit = nl80211_set_mcast_rate,
77765eaf 11844 .policy = nl80211_policy,
5617c6cd 11845 .flags = GENL_UNS_ADMIN_PERM,
77765eaf
VT		 11846 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11847 NL80211_FLAG_NEED_RTNL,
11848 },
11849 {
11850 .cmd = NL80211_CMD_SET_MAC_ACL,
11851 .doit = nl80211_set_mac_acl,
f4e583c8 11852 .policy = nl80211_policy,
5617c6cd 11853 .flags = GENL_UNS_ADMIN_PERM,
f4e583c8
AQ		 11854 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11855 NL80211_FLAG_NEED_RTNL,
11856 },
04f39047
SW		 11857 {
11858 .cmd = NL80211_CMD_RADAR_DETECT,
11859 .doit = nl80211_start_radar_detection,
11860 .policy = nl80211_policy,
5617c6cd 11861 .flags = GENL_UNS_ADMIN_PERM,
04f39047
SW		 11862 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11863 NL80211_FLAG_NEED_RTNL,
11864 },
3713b4e3
JB		 11865 {
11866 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11867 .doit = nl80211_get_protocol_features,
11868 .policy = nl80211_policy,
11869 },
355199e0
JM		 11870 {
11871 .cmd = NL80211_CMD_UPDATE_FT_IES,
11872 .doit = nl80211_update_ft_ies,
11873 .policy = nl80211_policy,
5617c6cd 11874 .flags = GENL_UNS_ADMIN_PERM,
355199e0
JM		 11875 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11876 NL80211_FLAG_NEED_RTNL,
11877 },
5de17984
AS		 11878 {
11879 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11880 .doit = nl80211_crit_protocol_start,
11881 .policy = nl80211_policy,
5617c6cd 11882 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 11883 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11884 NL80211_FLAG_NEED_RTNL,
11885 },
11886 {
11887 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11888 .doit = nl80211_crit_protocol_stop,
11889 .policy = nl80211_policy,
5617c6cd 11890 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 11891 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11892 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 11893 },
11894 {
11895 .cmd = NL80211_CMD_GET_COALESCE,
11896 .doit = nl80211_get_coalesce,
11897 .policy = nl80211_policy,
11898 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11899 NL80211_FLAG_NEED_RTNL,
11900 },
11901 {
11902 .cmd = NL80211_CMD_SET_COALESCE,
11903 .doit = nl80211_set_coalesce,
11904 .policy = nl80211_policy,
5617c6cd 11905 .flags = GENL_UNS_ADMIN_PERM,
be29b99a
AK		 11906 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11907 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 11908 },
11909 {
11910 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11911 .doit = nl80211_channel_switch,
11912 .policy = nl80211_policy,
5617c6cd 11913 .flags = GENL_UNS_ADMIN_PERM,
16ef1fe2
SW		 11914 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11915 NL80211_FLAG_NEED_RTNL,
11916 },
ad7e718c
JB		 11917 {
11918 .cmd = NL80211_CMD_VENDOR,
11919 .doit = nl80211_vendor_cmd,
7bdbe400 11920 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c 11921 .policy = nl80211_policy,
5617c6cd 11922 .flags = GENL_UNS_ADMIN_PERM,
ad7e718c
JB		 11923 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11924 NL80211_FLAG_NEED_RTNL,
11925 },
fa9ffc74
KP		 11926 {
11927 .cmd = NL80211_CMD_SET_QOS_MAP,
11928 .doit = nl80211_set_qos_map,
11929 .policy = nl80211_policy,
5617c6cd 11930 .flags = GENL_UNS_ADMIN_PERM,
fa9ffc74
KP		 11931 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11932 NL80211_FLAG_NEED_RTNL,
11933 },
960d01ac
JB		 11934 {
11935 .cmd = NL80211_CMD_ADD_TX_TS,
11936 .doit = nl80211_add_tx_ts,
11937 .policy = nl80211_policy,
5617c6cd 11938 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 11939 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11940 NL80211_FLAG_NEED_RTNL,
11941 },
11942 {
11943 .cmd = NL80211_CMD_DEL_TX_TS,
11944 .doit = nl80211_del_tx_ts,
11945 .policy = nl80211_policy,
5617c6cd 11946 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 11947 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11948 NL80211_FLAG_NEED_RTNL,
11949 },
1057d35e
AN		 11950 {
11951 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11952 .doit = nl80211_tdls_channel_switch,
11953 .policy = nl80211_policy,
5617c6cd 11954 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 11955 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11956 NL80211_FLAG_NEED_RTNL,
11957 },
11958 {
11959 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11960 .doit = nl80211_tdls_cancel_channel_switch,
11961 .policy = nl80211_policy,
5617c6cd 11962 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 11963 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11964 NL80211_FLAG_NEED_RTNL,
11965 },
55682965 11966};
9588bbd5 11967
55682965
JB		 11968/* notification functions */
11969
3bb20556
JB		 11970void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11971 enum nl80211_commands cmd)
55682965
JB		 11972{
11973 struct sk_buff *msg;
86e8cf98 11974 struct nl80211_dump_wiphy_state state = {};
55682965 11975
3bb20556
JB		 11976 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11977 cmd != NL80211_CMD_DEL_WIPHY);
11978
fd2120ca 11979 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 11980 if (!msg)
11981 return;
11982
3bb20556 11983 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 11984 nlmsg_free(msg);
11985 return;
11986 }
11987
68eb5503 11988 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11989 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 11990}
11991
896ff063
DK		 11992void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
11993 struct wireless_dev *wdev,
11994 enum nl80211_commands cmd)
11995{
11996 struct sk_buff *msg;
11997
11998 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
11999 cmd != NL80211_CMD_DEL_INTERFACE);
12000
12001 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12002 if (!msg)
12003 return;
12004
12005 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
12006 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
12007 nlmsg_free(msg);
12008 return;
12009 }
12010
12011 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12012 NL80211_MCGRP_CONFIG, GFP_KERNEL);
12013}
12014
362a415d
JB		 12015static int nl80211_add_scan_req(struct sk_buff *msg,
12016 struct cfg80211_registered_device *rdev)
12017{
12018 struct cfg80211_scan_request *req = rdev->scan_req;
12019 struct nlattr *nest;
12020 int i;
12021
12022 if (WARN_ON(!req))
12023 return 0;
12024
12025 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
12026 if (!nest)
12027 goto nla_put_failure;
9360ffd1
DM		 12028 for (i = 0; i < req->n_ssids; i++) {
12029 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
12030 goto nla_put_failure;
12031 }
362a415d
JB		 12032 nla_nest_end(msg, nest);
12033
12034 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
12035 if (!nest)
12036 goto nla_put_failure;
9360ffd1
DM		 12037 for (i = 0; i < req->n_channels; i++) {
12038 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
12039 goto nla_put_failure;
12040 }
362a415d
JB		 12041 nla_nest_end(msg, nest);
12042
9360ffd1
DM		 12043 if (req->ie &&
12044 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
12045 goto nla_put_failure;
362a415d 12046
ae917c9f
JB		 12047 if (req->flags &&
12048 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
12049 goto nla_put_failure;
ed473771 12050
1d76250b
AS		 12051 if (req->info.scan_start_tsf &&
12052 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
12053 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
12054 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
12055 req->info.tsf_bssid)))
12056 goto nla_put_failure;
12057
362a415d
JB		 12058 return 0;
12059 nla_put_failure:
12060 return -ENOBUFS;
12061}
12062
a538e2d5
JB		 12063static int nl80211_send_scan_msg(struct sk_buff *msg,
12064 struct cfg80211_registered_device *rdev,
fd014284 12065 struct wireless_dev *wdev,
15e47304 12066 u32 portid, u32 seq, int flags,
a538e2d5 12067 u32 cmd)
2a519311
JB		 12068{
12069 void *hdr;
12070
15e47304 12071 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 12072 if (!hdr)
12073 return -1;
12074
9360ffd1 12075 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 12076 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12077 wdev->netdev->ifindex)) ||
2dad624e
ND		 12078 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12079 NL80211_ATTR_PAD))
9360ffd1 12080 goto nla_put_failure;
2a519311 12081
362a415d
JB		 12082 /* ignore errors and send incomplete event anyway */
12083 nl80211_add_scan_req(msg, rdev);
2a519311 12084
053c095a
JB		 12085 genlmsg_end(msg, hdr);
12086 return 0;
2a519311
JB		 12087
12088 nla_put_failure:
12089 genlmsg_cancel(msg, hdr);
12090 return -EMSGSIZE;
12091}
12092
807f8a8c
LC		 12093static int
12094nl80211_send_sched_scan_msg(struct sk_buff *msg,
12095 struct cfg80211_registered_device *rdev,
12096 struct net_device *netdev,
15e47304 12097 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 12098{
12099 void *hdr;
12100
15e47304 12101 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 12102 if (!hdr)
12103 return -1;
12104
9360ffd1
DM		 12105 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12106 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12107 goto nla_put_failure;
807f8a8c 12108
053c095a
JB		 12109 genlmsg_end(msg, hdr);
12110 return 0;
807f8a8c
LC		 12111
12112 nla_put_failure:
12113 genlmsg_cancel(msg, hdr);
12114 return -EMSGSIZE;
12115}
12116
a538e2d5 12117void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 12118 struct wireless_dev *wdev)
a538e2d5
JB		 12119{
12120 struct sk_buff *msg;
12121
58050fce 12122 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 12123 if (!msg)
12124 return;
12125
fd014284 12126 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 12127 NL80211_CMD_TRIGGER_SCAN) < 0) {
12128 nlmsg_free(msg);
12129 return;
12130 }
12131
68eb5503 12132 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12133 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 12134}
12135
f9d15d16
JB		 12136struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
12137 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 12138{
12139 struct sk_buff *msg;
12140
fd2120ca 12141 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 12142 if (!msg)
f9d15d16 12143 return NULL;
2a519311 12144
fd014284 12145 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 12146 aborted ? NL80211_CMD_SCAN_ABORTED :
12147 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 12148 nlmsg_free(msg);
f9d15d16 12149 return NULL;
2a519311
JB		 12150 }
12151
f9d15d16 12152 return msg;
2a519311
JB		 12153}
12154
f9d15d16
JB		 12155void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
12156 struct sk_buff *msg)
2a519311 12157{
2a519311
JB		 12158 if (!msg)
12159 return;
12160
68eb5503 12161 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12162 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 12163}
12164
807f8a8c
LC		 12165void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
12166 struct net_device *netdev)
12167{
12168 struct sk_buff *msg;
12169
12170 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12171 if (!msg)
12172 return;
12173
12174 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
12175 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
12176 nlmsg_free(msg);
12177 return;
12178 }
12179
68eb5503 12180 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12181 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 12182}
12183
12184void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
12185 struct net_device *netdev, u32 cmd)
12186{
12187 struct sk_buff *msg;
12188
58050fce 12189 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 12190 if (!msg)
12191 return;
12192
12193 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
12194 nlmsg_free(msg);
12195 return;
12196 }
12197
68eb5503 12198 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12199 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 12200}
12201
b0d7aa59
JD		 12202static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
12203 struct regulatory_request *request)
73d54c9e 12204{
73d54c9e 12205 /* Userspace can always count this one always being set */
9360ffd1
DM		 12206 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
12207 goto nla_put_failure;
12208
12209 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
12210 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12211 NL80211_REGDOM_TYPE_WORLD))
12212 goto nla_put_failure;
12213 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
12214 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12215 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
12216 goto nla_put_failure;
12217 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
12218 request->intersect) {
12219 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12220 NL80211_REGDOM_TYPE_INTERSECTION))
12221 goto nla_put_failure;
12222 } else {
12223 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12224 NL80211_REGDOM_TYPE_COUNTRY) ||
12225 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
12226 request->alpha2))
12227 goto nla_put_failure;
12228 }
12229
ad30ca2c
AN		 12230 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
12231 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
12232
12233 if (wiphy &&
12234 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
12235 goto nla_put_failure;
1bdd716c
AN		 12236
12237 if (wiphy &&
12238 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
12239 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
12240 goto nla_put_failure;
ad30ca2c 12241 }
73d54c9e 12242
b0d7aa59
JD		 12243 return true;
12244
12245nla_put_failure:
12246 return false;
12247}
12248
12249/*
12250 * This can happen on global regulatory changes or device specific settings
12251 * based on custom regulatory domains.
12252 */
12253void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
12254 struct regulatory_request *request)
12255{
12256 struct sk_buff *msg;
12257 void *hdr;
12258
12259 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12260 if (!msg)
12261 return;
12262
12263 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
12264 if (!hdr) {
12265 nlmsg_free(msg);
12266 return;
12267 }
12268
12269 if (nl80211_reg_change_event_fill(msg, request) == false)
12270 goto nla_put_failure;
12271
3b7b72ee 12272 genlmsg_end(msg, hdr);
73d54c9e 12273
bc43b28c 12274 rcu_read_lock();
68eb5503 12275 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12276 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 12277 rcu_read_unlock();
73d54c9e
LR		 12278
12279 return;
12280
12281nla_put_failure:
12282 genlmsg_cancel(msg, hdr);
12283 nlmsg_free(msg);
12284}
12285
6039f6d2
JM		 12286static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
12287 struct net_device *netdev,
12288 const u8 *buf, size_t len,
b0b6aa2c
EP		 12289 enum nl80211_commands cmd, gfp_t gfp,
12290 int uapsd_queues)
6039f6d2
JM		 12291{
12292 struct sk_buff *msg;
12293 void *hdr;
12294
e6d6e342 12295 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 12296 if (!msg)
12297 return;
12298
12299 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12300 if (!hdr) {
12301 nlmsg_free(msg);
12302 return;
12303 }
12304
9360ffd1
DM		 12305 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12306 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12307 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
12308 goto nla_put_failure;
6039f6d2 12309
b0b6aa2c
EP		 12310 if (uapsd_queues >= 0) {
12311 struct nlattr *nla_wmm =
12312 nla_nest_start(msg, NL80211_ATTR_STA_WME);
12313 if (!nla_wmm)
12314 goto nla_put_failure;
12315
12316 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
12317 uapsd_queues))
12318 goto nla_put_failure;
12319
12320 nla_nest_end(msg, nla_wmm);
12321 }
12322
3b7b72ee 12323 genlmsg_end(msg, hdr);
6039f6d2 12324
68eb5503 12325 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12326 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 12327 return;
12328
12329 nla_put_failure:
12330 genlmsg_cancel(msg, hdr);
12331 nlmsg_free(msg);
12332}
12333
12334void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12335 struct net_device *netdev, const u8 *buf,
12336 size_t len, gfp_t gfp)
6039f6d2
JM		 12337{
12338 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12339 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 12340}
12341
12342void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
12343 struct net_device *netdev, const u8 *buf,
b0b6aa2c 12344 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 12345{
e6d6e342 12346 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12347 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 12348}
12349
53b46b84 12350void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12351 struct net_device *netdev, const u8 *buf,
12352 size_t len, gfp_t gfp)
6039f6d2
JM		 12353{
12354 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12355 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 12356}
12357
53b46b84
JM		 12358void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
12359 struct net_device *netdev, const u8 *buf,
e6d6e342 12360 size_t len, gfp_t gfp)
6039f6d2
JM		 12361{
12362 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12363 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 12364}
12365
6ff57cf8
JB		 12366void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
12367 size_t len)
cf4e594e 12368{
947add36
JB		 12369 struct wireless_dev *wdev = dev->ieee80211_ptr;
12370 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12371 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 12372 const struct ieee80211_mgmt *mgmt = (void *)buf;
12373 u32 cmd;
947add36 12374
6ff57cf8
JB		 12375 if (WARN_ON(len < 2))
12376 return;
cf4e594e 12377
6ff57cf8
JB		 12378 if (ieee80211_is_deauth(mgmt->frame_control))
12379 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
12380 else
12381 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 12382
6ff57cf8 12383 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 12384 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 12385}
6ff57cf8 12386EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 12387
1b06bb40
LR		 12388static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
12389 struct net_device *netdev, int cmd,
e6d6e342 12390 const u8 *addr, gfp_t gfp)
1965c853
JM		 12391{
12392 struct sk_buff *msg;
12393 void *hdr;
12394
e6d6e342 12395 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 12396 if (!msg)
12397 return;
12398
12399 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12400 if (!hdr) {
12401 nlmsg_free(msg);
12402 return;
12403 }
12404
9360ffd1
DM		 12405 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12406 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12407 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
12408 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12409 goto nla_put_failure;
1965c853 12410
3b7b72ee 12411 genlmsg_end(msg, hdr);
1965c853 12412
68eb5503 12413 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12414 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 12415 return;
12416
12417 nla_put_failure:
12418 genlmsg_cancel(msg, hdr);
12419 nlmsg_free(msg);
12420}
12421
12422void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12423 struct net_device *netdev, const u8 *addr,
12424 gfp_t gfp)
1965c853
JM		 12425{
12426 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 12427 addr, gfp);
1965c853
JM		 12428}
12429
12430void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12431 struct net_device *netdev, const u8 *addr,
12432 gfp_t gfp)
1965c853 12433{
e6d6e342
JB		 12434 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
12435 addr, gfp);
1965c853
JM		 12436}
12437
b23aa676
SO		 12438void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
12439 struct net_device *netdev, const u8 *bssid,
12440 const u8 *req_ie, size_t req_ie_len,
12441 const u8 *resp_ie, size_t resp_ie_len,
bf1ecd21 12442 int status, gfp_t gfp)
b23aa676
SO		 12443{
12444 struct sk_buff *msg;
12445 void *hdr;
12446
58050fce 12447 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12448 if (!msg)
12449 return;
12450
12451 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
12452 if (!hdr) {
12453 nlmsg_free(msg);
12454 return;
12455 }
12456
9360ffd1
DM		 12457 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12458 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12459 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
bf1ecd21
JM		 12460 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
12461 status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
12462 status) ||
12463 (status < 0 && nla_put_flag(msg, NL80211_ATTR_TIMED_OUT)) ||
9360ffd1
DM		 12464 (req_ie &&
12465 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12466 (resp_ie &&
12467 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12468 goto nla_put_failure;
b23aa676 12469
3b7b72ee 12470 genlmsg_end(msg, hdr);
b23aa676 12471
68eb5503 12472 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12473 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12474 return;
12475
12476 nla_put_failure:
12477 genlmsg_cancel(msg, hdr);
12478 nlmsg_free(msg);
b23aa676
SO		 12479}
12480
12481void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
12482 struct net_device *netdev, const u8 *bssid,
12483 const u8 *req_ie, size_t req_ie_len,
12484 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
12485{
12486 struct sk_buff *msg;
12487 void *hdr;
12488
58050fce 12489 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12490 if (!msg)
12491 return;
12492
12493 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
12494 if (!hdr) {
12495 nlmsg_free(msg);
12496 return;
12497 }
12498
9360ffd1
DM		 12499 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12500 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12501 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
12502 (req_ie &&
12503 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12504 (resp_ie &&
12505 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12506 goto nla_put_failure;
b23aa676 12507
3b7b72ee 12508 genlmsg_end(msg, hdr);
b23aa676 12509
68eb5503 12510 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12511 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12512 return;
12513
12514 nla_put_failure:
12515 genlmsg_cancel(msg, hdr);
12516 nlmsg_free(msg);
b23aa676
SO		 12517}
12518
12519void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
12520 struct net_device *netdev, u16 reason,
667503dd 12521 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 12522{
12523 struct sk_buff *msg;
12524 void *hdr;
12525
58050fce 12526 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 12527 if (!msg)
12528 return;
12529
12530 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
12531 if (!hdr) {
12532 nlmsg_free(msg);
12533 return;
12534 }
12535
9360ffd1
DM		 12536 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12537 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12538 (from_ap && reason &&
12539 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
12540 (from_ap &&
12541 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
12542 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
12543 goto nla_put_failure;
b23aa676 12544
3b7b72ee 12545 genlmsg_end(msg, hdr);
b23aa676 12546
68eb5503 12547 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12548 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 12549 return;
12550
12551 nla_put_failure:
12552 genlmsg_cancel(msg, hdr);
12553 nlmsg_free(msg);
b23aa676
SO		 12554}
12555
04a773ad
JB		 12556void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
12557 struct net_device *netdev, const u8 *bssid,
12558 gfp_t gfp)
12559{
12560 struct sk_buff *msg;
12561 void *hdr;
12562
fd2120ca 12563 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 12564 if (!msg)
12565 return;
12566
12567 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
12568 if (!hdr) {
12569 nlmsg_free(msg);
12570 return;
12571 }
12572
9360ffd1
DM		 12573 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12574 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12575 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12576 goto nla_put_failure;
04a773ad 12577
3b7b72ee 12578 genlmsg_end(msg, hdr);
04a773ad 12579
68eb5503 12580 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12581 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 12582 return;
12583
12584 nla_put_failure:
12585 genlmsg_cancel(msg, hdr);
12586 nlmsg_free(msg);
12587}
12588
947add36
JB		 12589void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12590 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 12591{
947add36 12592 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12593 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 12594 struct sk_buff *msg;
12595 void *hdr;
12596
947add36
JB		 12597 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12598 return;
12599
12600 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12601
c93b5e71
JC		 12602 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12603 if (!msg)
12604 return;
12605
12606 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12607 if (!hdr) {
12608 nlmsg_free(msg);
12609 return;
12610 }
12611
9360ffd1 12612 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 12613 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12614 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 12615 (ie_len && ie &&
12616 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12617 goto nla_put_failure;
c93b5e71 12618
3b7b72ee 12619 genlmsg_end(msg, hdr);
c93b5e71 12620
68eb5503 12621 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12622 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 12623 return;
12624
12625 nla_put_failure:
12626 genlmsg_cancel(msg, hdr);
12627 nlmsg_free(msg);
12628}
947add36 12629EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 12630
a3b8b056
JM		 12631void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12632 struct net_device *netdev, const u8 *addr,
12633 enum nl80211_key_type key_type, int key_id,
e6d6e342 12634 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 12635{
12636 struct sk_buff *msg;
12637 void *hdr;
12638
e6d6e342 12639 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 12640 if (!msg)
12641 return;
12642
12643 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12644 if (!hdr) {
12645 nlmsg_free(msg);
12646 return;
12647 }
12648
9360ffd1
DM		 12649 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12650 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12651 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12652 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12653 (key_id != -1 &&
12654 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12655 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12656 goto nla_put_failure;
a3b8b056 12657
3b7b72ee 12658 genlmsg_end(msg, hdr);
a3b8b056 12659
68eb5503 12660 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12661 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 12662 return;
12663
12664 nla_put_failure:
12665 genlmsg_cancel(msg, hdr);
12666 nlmsg_free(msg);
12667}
12668
6bad8766
LR		 12669void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12670 struct ieee80211_channel *channel_before,
12671 struct ieee80211_channel *channel_after)
12672{
12673 struct sk_buff *msg;
12674 void *hdr;
12675 struct nlattr *nl_freq;
12676
fd2120ca 12677 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 12678 if (!msg)
12679 return;
12680
12681 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12682 if (!hdr) {
12683 nlmsg_free(msg);
12684 return;
12685 }
12686
12687 /*
12688 * Since we are applying the beacon hint to a wiphy we know its
12689 * wiphy_idx is valid
12690 */
9360ffd1
DM		 12691 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12692 goto nla_put_failure;
6bad8766
LR		 12693
12694 /* Before */
12695 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12696 if (!nl_freq)
12697 goto nla_put_failure;
cdc89b97 12698 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 12699 goto nla_put_failure;
12700 nla_nest_end(msg, nl_freq);
12701
12702 /* After */
12703 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12704 if (!nl_freq)
12705 goto nla_put_failure;
cdc89b97 12706 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 12707 goto nla_put_failure;
12708 nla_nest_end(msg, nl_freq);
12709
3b7b72ee 12710 genlmsg_end(msg, hdr);
6bad8766 12711
463d0183 12712 rcu_read_lock();
68eb5503 12713 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12714 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 12715 rcu_read_unlock();
6bad8766
LR		 12716
12717 return;
12718
12719nla_put_failure:
12720 genlmsg_cancel(msg, hdr);
12721 nlmsg_free(msg);
12722}
12723
9588bbd5
JM		 12724static void nl80211_send_remain_on_chan_event(
12725 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 12726 struct wireless_dev *wdev, u64 cookie,
9588bbd5 12727 struct ieee80211_channel *chan,
9588bbd5
JM		 12728 unsigned int duration, gfp_t gfp)
12729{
12730 struct sk_buff *msg;
12731 void *hdr;
12732
12733 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12734 if (!msg)
12735 return;
12736
12737 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12738 if (!hdr) {
12739 nlmsg_free(msg);
12740 return;
12741 }
12742
9360ffd1 12743 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12744 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12745 wdev->netdev->ifindex)) ||
2dad624e
ND		 12746 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12747 NL80211_ATTR_PAD) ||
9360ffd1 12748 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 12749 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12750 NL80211_CHAN_NO_HT) ||
2dad624e
ND		 12751 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12752 NL80211_ATTR_PAD))
9360ffd1 12753 goto nla_put_failure;
9588bbd5 12754
9360ffd1
DM		 12755 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12756 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12757 goto nla_put_failure;
9588bbd5 12758
3b7b72ee 12759 genlmsg_end(msg, hdr);
9588bbd5 12760
68eb5503 12761 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12762 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 12763 return;
12764
12765 nla_put_failure:
12766 genlmsg_cancel(msg, hdr);
12767 nlmsg_free(msg);
12768}
12769
947add36
JB		 12770void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12771 struct ieee80211_channel *chan,
12772 unsigned int duration, gfp_t gfp)
9588bbd5 12773{
947add36 12774 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12775 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12776
12777 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 12778 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 12779 rdev, wdev, cookie, chan,
42d97a59 12780 duration, gfp);
9588bbd5 12781}
947add36 12782EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 12783
947add36
JB		 12784void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12785 struct ieee80211_channel *chan,
12786 gfp_t gfp)
9588bbd5 12787{
947add36 12788 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12789 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12790
12791 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 12792 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 12793 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 12794}
947add36 12795EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 12796
947add36
JB		 12797void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12798 struct station_info *sinfo, gfp_t gfp)
98b62183 12799{
947add36 12800 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12801 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 12802 struct sk_buff *msg;
12803
947add36
JB		 12804 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12805
58050fce 12806 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 12807 if (!msg)
12808 return;
12809
cf5ead82 12810 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 12811 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 12812 nlmsg_free(msg);
12813 return;
12814 }
12815
68eb5503 12816 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12817 NL80211_MCGRP_MLME, gfp);
98b62183 12818}
947add36 12819EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 12820
cf5ead82
JB		 12821void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12822 struct station_info *sinfo, gfp_t gfp)
ec15e68b 12823{
947add36 12824 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12825 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 12826 struct sk_buff *msg;
cf5ead82
JB		 12827 struct station_info empty_sinfo = {};
12828
12829 if (!sinfo)
12830 sinfo = &empty_sinfo;
ec15e68b 12831
947add36
JB		 12832 trace_cfg80211_del_sta(dev, mac_addr);
12833
58050fce 12834 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 12835 if (!msg)
12836 return;
12837
cf5ead82 12838 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 12839 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 12840 nlmsg_free(msg);
12841 return;
12842 }
12843
68eb5503 12844 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12845 NL80211_MCGRP_MLME, gfp);
ec15e68b 12846}
cf5ead82 12847EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 12848
947add36
JB		 12849void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12850 enum nl80211_connect_failed_reason reason,
12851 gfp_t gfp)
ed44a951 12852{
947add36 12853 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12854 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 12855 struct sk_buff *msg;
12856 void *hdr;
12857
12858 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12859 if (!msg)
12860 return;
12861
12862 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12863 if (!hdr) {
12864 nlmsg_free(msg);
12865 return;
12866 }
12867
12868 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12869 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12870 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12871 goto nla_put_failure;
12872
12873 genlmsg_end(msg, hdr);
12874
68eb5503 12875 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12876 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 12877 return;
12878
12879 nla_put_failure:
12880 genlmsg_cancel(msg, hdr);
12881 nlmsg_free(msg);
12882}
947add36 12883EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 12884
b92ab5d8
JB		 12885static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12886 const u8 *addr, gfp_t gfp)
28946da7
JB		 12887{
12888 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12889 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 12890 struct sk_buff *msg;
12891 void *hdr;
15e47304 12892 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 12893
15e47304 12894 if (!nlportid)
28946da7
JB		 12895 return false;
12896
12897 msg = nlmsg_new(100, gfp);
12898 if (!msg)
12899 return true;
12900
b92ab5d8 12901 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 12902 if (!hdr) {
12903 nlmsg_free(msg);
12904 return true;
12905 }
12906
9360ffd1
DM		 12907 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12908 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12909 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12910 goto nla_put_failure;
28946da7 12911
9c90a9f6 12912 genlmsg_end(msg, hdr);
15e47304 12913 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 12914 return true;
12915
12916 nla_put_failure:
12917 genlmsg_cancel(msg, hdr);
12918 nlmsg_free(msg);
12919 return true;
12920}
12921
947add36
JB		 12922bool cfg80211_rx_spurious_frame(struct net_device *dev,
12923 const u8 *addr, gfp_t gfp)
b92ab5d8 12924{
947add36
JB		 12925 struct wireless_dev *wdev = dev->ieee80211_ptr;
12926 bool ret;
12927
12928 trace_cfg80211_rx_spurious_frame(dev, addr);
12929
12930 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12931 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12932 trace_cfg80211_return_bool(false);
12933 return false;
12934 }
12935 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12936 addr, gfp);
12937 trace_cfg80211_return_bool(ret);
12938 return ret;
b92ab5d8 12939}
947add36 12940EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 12941
947add36
JB		 12942bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12943 const u8 *addr, gfp_t gfp)
b92ab5d8 12944{
947add36
JB		 12945 struct wireless_dev *wdev = dev->ieee80211_ptr;
12946 bool ret;
12947
12948 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12949
12950 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12951 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12952 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12953 trace_cfg80211_return_bool(false);
12954 return false;
12955 }
12956 ret = __nl80211_unexpected_frame(dev,
12957 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12958 addr, gfp);
12959 trace_cfg80211_return_bool(ret);
12960 return ret;
b92ab5d8 12961}
947add36 12962EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 12963
2e161f78 12964int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 12965 struct wireless_dev *wdev, u32 nlportid,
804483e9 12966 int freq, int sig_dbm,
19504cf5 12967 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 12968{
71bbc994 12969 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12970 struct sk_buff *msg;
12971 void *hdr;
026331c4
JM		 12972
12973 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12974 if (!msg)
12975 return -ENOMEM;
12976
2e161f78 12977 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 12978 if (!hdr) {
12979 nlmsg_free(msg);
12980 return -ENOMEM;
12981 }
12982
9360ffd1 12983 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12984 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12985 netdev->ifindex)) ||
2dad624e
ND		 12986 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12987 NL80211_ATTR_PAD) ||
9360ffd1
DM		 12988 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12989 (sig_dbm &&
12990 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 12991 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12992 (flags &&
12993 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 12994 goto nla_put_failure;
026331c4 12995
3b7b72ee 12996 genlmsg_end(msg, hdr);
026331c4 12997
15e47304 12998 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 12999
13000 nla_put_failure:
13001 genlmsg_cancel(msg, hdr);
13002 nlmsg_free(msg);
13003 return -ENOBUFS;
13004}
13005
947add36
JB		 13006void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
13007 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 13008{
947add36 13009 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13010 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 13011 struct net_device *netdev = wdev->netdev;
026331c4
JM		 13012 struct sk_buff *msg;
13013 void *hdr;
13014
947add36
JB		 13015 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
13016
026331c4
JM		 13017 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13018 if (!msg)
13019 return;
13020
2e161f78 13021 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 13022 if (!hdr) {
13023 nlmsg_free(msg);
13024 return;
13025 }
13026
9360ffd1 13027 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 13028 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13029 netdev->ifindex)) ||
2dad624e
ND		 13030 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13031 NL80211_ATTR_PAD) ||
9360ffd1 13032 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
2dad624e
ND		 13033 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13034 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13035 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
13036 goto nla_put_failure;
026331c4 13037
3b7b72ee 13038 genlmsg_end(msg, hdr);
026331c4 13039
68eb5503 13040 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13041 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 13042 return;
13043
13044 nla_put_failure:
13045 genlmsg_cancel(msg, hdr);
13046 nlmsg_free(msg);
13047}
947add36 13048EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 13049
5b97f49d
JB		 13050static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
13051 const char *mac, gfp_t gfp)
d6dc1a38 13052{
947add36 13053 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 13054 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13055 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13056 void **cb;
947add36 13057
d6dc1a38 13058 if (!msg)
5b97f49d 13059 return NULL;
d6dc1a38 13060
5b97f49d
JB		 13061 cb = (void **)msg->cb;
13062
13063 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
13064 if (!cb[0]) {
d6dc1a38 13065 nlmsg_free(msg);
5b97f49d 13066 return NULL;
d6dc1a38
JO		 13067 }
13068
9360ffd1 13069 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 13070 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 13071 goto nla_put_failure;
d6dc1a38 13072
5b97f49d 13073 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 13074 goto nla_put_failure;
13075
5b97f49d
JB		 13076 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
13077 if (!cb[1])
9360ffd1 13078 goto nla_put_failure;
d6dc1a38 13079
5b97f49d 13080 cb[2] = rdev;
d6dc1a38 13081
5b97f49d
JB		 13082 return msg;
13083 nla_put_failure:
13084 nlmsg_free(msg);
13085 return NULL;
13086}
13087
13088static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
13089{
13090 void **cb = (void **)msg->cb;
13091 struct cfg80211_registered_device *rdev = cb[2];
13092
13093 nla_nest_end(msg, cb[1]);
13094 genlmsg_end(msg, cb[0]);
13095
13096 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 13097
68eb5503 13098 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13099 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 13100}
13101
13102void cfg80211_cqm_rssi_notify(struct net_device *dev,
13103 enum nl80211_cqm_rssi_threshold_event rssi_event,
13104 gfp_t gfp)
13105{
13106 struct sk_buff *msg;
13107
13108 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
13109
98f03342
JB		 13110 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
13111 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
13112 return;
13113
5b97f49d
JB		 13114 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13115 if (!msg)
13116 return;
13117
13118 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
13119 rssi_event))
13120 goto nla_put_failure;
13121
13122 cfg80211_send_cqm(msg, gfp);
13123
d6dc1a38
JO		 13124 return;
13125
13126 nla_put_failure:
d6dc1a38
JO		 13127 nlmsg_free(msg);
13128}
947add36 13129EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 13130
5b97f49d
JB		 13131void cfg80211_cqm_txe_notify(struct net_device *dev,
13132 const u8 *peer, u32 num_packets,
13133 u32 rate, u32 intvl, gfp_t gfp)
13134{
13135 struct sk_buff *msg;
13136
13137 msg = cfg80211_prepare_cqm(dev, peer, gfp);
13138 if (!msg)
13139 return;
13140
13141 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
13142 goto nla_put_failure;
13143
13144 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
13145 goto nla_put_failure;
13146
13147 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
13148 goto nla_put_failure;
13149
13150 cfg80211_send_cqm(msg, gfp);
13151 return;
13152
13153 nla_put_failure:
13154 nlmsg_free(msg);
13155}
13156EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
13157
13158void cfg80211_cqm_pktloss_notify(struct net_device *dev,
13159 const u8 *peer, u32 num_packets, gfp_t gfp)
13160{
13161 struct sk_buff *msg;
13162
13163 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
13164
13165 msg = cfg80211_prepare_cqm(dev, peer, gfp);
13166 if (!msg)
13167 return;
13168
13169 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
13170 goto nla_put_failure;
13171
13172 cfg80211_send_cqm(msg, gfp);
13173 return;
13174
13175 nla_put_failure:
13176 nlmsg_free(msg);
13177}
13178EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
13179
98f03342
JB		 13180void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
13181{
13182 struct sk_buff *msg;
13183
13184 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13185 if (!msg)
13186 return;
13187
13188 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
13189 goto nla_put_failure;
13190
13191 cfg80211_send_cqm(msg, gfp);
13192 return;
13193
13194 nla_put_failure:
13195 nlmsg_free(msg);
13196}
13197EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
13198
947add36
JB		 13199static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
13200 struct net_device *netdev, const u8 *bssid,
13201 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 13202{
13203 struct sk_buff *msg;
13204 struct nlattr *rekey_attr;
13205 void *hdr;
13206
58050fce 13207 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 13208 if (!msg)
13209 return;
13210
13211 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
13212 if (!hdr) {
13213 nlmsg_free(msg);
13214 return;
13215 }
13216
9360ffd1
DM		 13217 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13218 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13219 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13220 goto nla_put_failure;
e5497d76
JB		 13221
13222 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
13223 if (!rekey_attr)
13224 goto nla_put_failure;
13225
9360ffd1
DM		 13226 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
13227 NL80211_REPLAY_CTR_LEN, replay_ctr))
13228 goto nla_put_failure;
e5497d76
JB		 13229
13230 nla_nest_end(msg, rekey_attr);
13231
3b7b72ee 13232 genlmsg_end(msg, hdr);
e5497d76 13233
68eb5503 13234 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13235 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 13236 return;
13237
13238 nla_put_failure:
13239 genlmsg_cancel(msg, hdr);
13240 nlmsg_free(msg);
13241}
13242
947add36
JB		 13243void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
13244 const u8 *replay_ctr, gfp_t gfp)
13245{
13246 struct wireless_dev *wdev = dev->ieee80211_ptr;
13247 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13248 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13249
13250 trace_cfg80211_gtk_rekey_notify(dev, bssid);
13251 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
13252}
13253EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
13254
13255static void
13256nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
13257 struct net_device *netdev, int index,
13258 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 13259{
13260 struct sk_buff *msg;
13261 struct nlattr *attr;
13262 void *hdr;
13263
58050fce 13264 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 13265 if (!msg)
13266 return;
13267
13268 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
13269 if (!hdr) {
13270 nlmsg_free(msg);
13271 return;
13272 }
13273
9360ffd1
DM		 13274 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13275 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13276 goto nla_put_failure;
c9df56b4
JM		 13277
13278 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
13279 if (!attr)
13280 goto nla_put_failure;
13281
9360ffd1
DM		 13282 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
13283 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
13284 (preauth &&
13285 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
13286 goto nla_put_failure;
c9df56b4
JM		 13287
13288 nla_nest_end(msg, attr);
13289
3b7b72ee 13290 genlmsg_end(msg, hdr);
c9df56b4 13291
68eb5503 13292 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13293 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 13294 return;
13295
13296 nla_put_failure:
13297 genlmsg_cancel(msg, hdr);
13298 nlmsg_free(msg);
13299}
13300
947add36
JB		 13301void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
13302 const u8 *bssid, bool preauth, gfp_t gfp)
13303{
13304 struct wireless_dev *wdev = dev->ieee80211_ptr;
13305 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13306 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13307
13308 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
13309 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
13310}
13311EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
13312
13313static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
13314 struct net_device *netdev,
13315 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 13316 gfp_t gfp,
13317 enum nl80211_commands notif,
13318 u8 count)
5314526b
TP		 13319{
13320 struct sk_buff *msg;
13321 void *hdr;
13322
58050fce 13323 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 13324 if (!msg)
13325 return;
13326
f8d7552e 13327 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 13328 if (!hdr) {
13329 nlmsg_free(msg);
13330 return;
13331 }
13332
683b6d3b
JB		 13333 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13334 goto nla_put_failure;
13335
13336 if (nl80211_send_chandef(msg, chandef))
7eab0f64 13337 goto nla_put_failure;
5314526b 13338
f8d7552e
LC		 13339 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
13340 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
13341 goto nla_put_failure;
13342
5314526b
TP		 13343 genlmsg_end(msg, hdr);
13344
68eb5503 13345 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13346 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 13347 return;
13348
13349 nla_put_failure:
13350 genlmsg_cancel(msg, hdr);
13351 nlmsg_free(msg);
13352}
13353
947add36
JB		 13354void cfg80211_ch_switch_notify(struct net_device *dev,
13355 struct cfg80211_chan_def *chandef)
84f10708 13356{
947add36
JB		 13357 struct wireless_dev *wdev = dev->ieee80211_ptr;
13358 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13359 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 13360
e487eaeb 13361 ASSERT_WDEV_LOCK(wdev);
947add36 13362
e487eaeb 13363 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 13364
9e0e2961 13365 wdev->chandef = *chandef;
96f55f12 13366 wdev->preset_chandef = *chandef;
f8d7552e
LC		 13367 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13368 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 13369}
13370EXPORT_SYMBOL(cfg80211_ch_switch_notify);
13371
f8d7552e
LC		 13372void cfg80211_ch_switch_started_notify(struct net_device *dev,
13373 struct cfg80211_chan_def *chandef,
13374 u8 count)
13375{
13376 struct wireless_dev *wdev = dev->ieee80211_ptr;
13377 struct wiphy *wiphy = wdev->wiphy;
13378 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13379
13380 trace_cfg80211_ch_switch_started_notify(dev, chandef);
13381
13382 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13383 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
13384}
13385EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
13386
04f39047
SW		 13387void
13388nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 13389 const struct cfg80211_chan_def *chandef,
04f39047
SW		 13390 enum nl80211_radar_event event,
13391 struct net_device *netdev, gfp_t gfp)
13392{
13393 struct sk_buff *msg;
13394 void *hdr;
13395
13396 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13397 if (!msg)
13398 return;
13399
13400 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
13401 if (!hdr) {
13402 nlmsg_free(msg);
13403 return;
13404 }
13405
13406 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
13407 goto nla_put_failure;
13408
13409 /* NOP and radar events don't need a netdev parameter */
13410 if (netdev) {
13411 struct wireless_dev *wdev = netdev->ieee80211_ptr;
13412
13413 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
2dad624e
ND		 13414 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13415 NL80211_ATTR_PAD))
04f39047
SW		 13416 goto nla_put_failure;
13417 }
13418
13419 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
13420 goto nla_put_failure;
13421
13422 if (nl80211_send_chandef(msg, chandef))
13423 goto nla_put_failure;
13424
9c90a9f6 13425 genlmsg_end(msg, hdr);
04f39047 13426
68eb5503 13427 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13428 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 13429 return;
13430
13431 nla_put_failure:
13432 genlmsg_cancel(msg, hdr);
13433 nlmsg_free(msg);
13434}
13435
7f6cf311
JB		 13436void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
13437 u64 cookie, bool acked, gfp_t gfp)
13438{
13439 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13440 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 13441 struct sk_buff *msg;
13442 void *hdr;
7f6cf311 13443
4ee3e063
BL		 13444 trace_cfg80211_probe_status(dev, addr, cookie, acked);
13445
58050fce 13446 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 13447
7f6cf311
JB		 13448 if (!msg)
13449 return;
13450
13451 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
13452 if (!hdr) {
13453 nlmsg_free(msg);
13454 return;
13455 }
13456
9360ffd1
DM		 13457 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13458 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13459 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2dad624e
ND		 13460 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13461 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13462 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
13463 goto nla_put_failure;
7f6cf311 13464
9c90a9f6 13465 genlmsg_end(msg, hdr);
7f6cf311 13466
68eb5503 13467 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13468 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 13469 return;
13470
13471 nla_put_failure:
13472 genlmsg_cancel(msg, hdr);
13473 nlmsg_free(msg);
13474}
13475EXPORT_SYMBOL(cfg80211_probe_status);
13476
5e760230
JB		 13477void cfg80211_report_obss_beacon(struct wiphy *wiphy,
13478 const u8 *frame, size_t len,
37c73b5f 13479 int freq, int sig_dbm)
5e760230 13480{
f26cbf40 13481 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 13482 struct sk_buff *msg;
13483 void *hdr;
37c73b5f 13484 struct cfg80211_beacon_registration *reg;
5e760230 13485
4ee3e063
BL		 13486 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
13487
37c73b5f
BG		 13488 spin_lock_bh(&rdev->beacon_registrations_lock);
13489 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
13490 msg = nlmsg_new(len + 100, GFP_ATOMIC);
13491 if (!msg) {
13492 spin_unlock_bh(&rdev->beacon_registrations_lock);
13493 return;
13494 }
5e760230 13495
37c73b5f
BG		 13496 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
13497 if (!hdr)
13498 goto nla_put_failure;
5e760230 13499
37c73b5f
BG		 13500 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13501 (freq &&
13502 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
13503 (sig_dbm &&
13504 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
13505 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
13506 goto nla_put_failure;
5e760230 13507
37c73b5f 13508 genlmsg_end(msg, hdr);
5e760230 13509
37c73b5f
BG		 13510 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
13511 }
13512 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 13513 return;
13514
13515 nla_put_failure:
37c73b5f
BG		 13516 spin_unlock_bh(&rdev->beacon_registrations_lock);
13517 if (hdr)
13518 genlmsg_cancel(msg, hdr);
5e760230
JB		 13519 nlmsg_free(msg);
13520}
13521EXPORT_SYMBOL(cfg80211_report_obss_beacon);
13522
cd8f7cb4 13523#ifdef CONFIG_PM
8cd4d456
LC		 13524static int cfg80211_net_detect_results(struct sk_buff *msg,
13525 struct cfg80211_wowlan_wakeup *wakeup)
13526{
13527 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
13528 struct nlattr *nl_results, *nl_match, *nl_freqs;
13529 int i, j;
13530
13531 nl_results = nla_nest_start(
13532 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
13533 if (!nl_results)
13534 return -EMSGSIZE;
13535
13536 for (i = 0; i < nd->n_matches; i++) {
13537 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
13538
13539 nl_match = nla_nest_start(msg, i);
13540 if (!nl_match)
13541 break;
13542
13543 /* The SSID attribute is optional in nl80211, but for
13544 * simplicity reasons it's always present in the
13545 * cfg80211 structure. If a driver can't pass the
13546 * SSID, that needs to be changed. A zero length SSID
13547 * is still a valid SSID (wildcard), so it cannot be
13548 * used for this purpose.
13549 */
13550 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
13551 match->ssid.ssid)) {
13552 nla_nest_cancel(msg, nl_match);
13553 goto out;
13554 }
13555
13556 if (match->n_channels) {
13557 nl_freqs = nla_nest_start(
13558 msg, NL80211_ATTR_SCAN_FREQUENCIES);
13559 if (!nl_freqs) {
13560 nla_nest_cancel(msg, nl_match);
13561 goto out;
13562 }
13563
13564 for (j = 0; j < match->n_channels; j++) {
5528fae8 13565 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 13566 nla_nest_cancel(msg, nl_freqs);
13567 nla_nest_cancel(msg, nl_match);
13568 goto out;
13569 }
13570 }
13571
13572 nla_nest_end(msg, nl_freqs);
13573 }
13574
13575 nla_nest_end(msg, nl_match);
13576 }
13577
13578out:
13579 nla_nest_end(msg, nl_results);
13580 return 0;
13581}
13582
cd8f7cb4
JB		 13583void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
13584 struct cfg80211_wowlan_wakeup *wakeup,
13585 gfp_t gfp)
13586{
f26cbf40 13587 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 13588 struct sk_buff *msg;
13589 void *hdr;
9c90a9f6 13590 int size = 200;
cd8f7cb4
JB		 13591
13592 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13593
13594 if (wakeup)
13595 size += wakeup->packet_present_len;
13596
13597 msg = nlmsg_new(size, gfp);
13598 if (!msg)
13599 return;
13600
13601 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13602 if (!hdr)
13603 goto free_msg;
13604
13605 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 13606 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13607 NL80211_ATTR_PAD))
cd8f7cb4
JB		 13608 goto free_msg;
13609
13610 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13611 wdev->netdev->ifindex))
13612 goto free_msg;
13613
13614 if (wakeup) {
13615 struct nlattr *reasons;
13616
13617 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 13618 if (!reasons)
13619 goto free_msg;
cd8f7cb4
JB		 13620
13621 if (wakeup->disconnect &&
13622 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13623 goto free_msg;
13624 if (wakeup->magic_pkt &&
13625 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13626 goto free_msg;
13627 if (wakeup->gtk_rekey_failure &&
13628 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13629 goto free_msg;
13630 if (wakeup->eap_identity_req &&
13631 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13632 goto free_msg;
13633 if (wakeup->four_way_handshake &&
13634 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13635 goto free_msg;
13636 if (wakeup->rfkill_release &&
13637 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13638 goto free_msg;
13639
13640 if (wakeup->pattern_idx >= 0 &&
13641 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13642 wakeup->pattern_idx))
13643 goto free_msg;
13644
ae917c9f
JB		 13645 if (wakeup->tcp_match &&
13646 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13647 goto free_msg;
2a0e047e 13648
ae917c9f
JB		 13649 if (wakeup->tcp_connlost &&
13650 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13651 goto free_msg;
2a0e047e 13652
ae917c9f
JB		 13653 if (wakeup->tcp_nomoretokens &&
13654 nla_put_flag(msg,
13655 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13656 goto free_msg;
2a0e047e 13657
cd8f7cb4
JB		 13658 if (wakeup->packet) {
13659 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13660 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13661
13662 if (!wakeup->packet_80211) {
13663 pkt_attr =
13664 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13665 len_attr =
13666 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13667 }
13668
13669 if (wakeup->packet_len &&
13670 nla_put_u32(msg, len_attr, wakeup->packet_len))
13671 goto free_msg;
13672
13673 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13674 wakeup->packet))
13675 goto free_msg;
13676 }
13677
8cd4d456
LC		 13678 if (wakeup->net_detect &&
13679 cfg80211_net_detect_results(msg, wakeup))
13680 goto free_msg;
13681
cd8f7cb4
JB		 13682 nla_nest_end(msg, reasons);
13683 }
13684
9c90a9f6 13685 genlmsg_end(msg, hdr);
cd8f7cb4 13686
68eb5503 13687 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13688 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 13689 return;
13690
13691 free_msg:
13692 nlmsg_free(msg);
13693}
13694EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13695#endif
13696
3475b094
JM		 13697void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13698 enum nl80211_tdls_operation oper,
13699 u16 reason_code, gfp_t gfp)
13700{
13701 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13702 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 13703 struct sk_buff *msg;
13704 void *hdr;
3475b094
JM		 13705
13706 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13707 reason_code);
13708
13709 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13710 if (!msg)
13711 return;
13712
13713 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13714 if (!hdr) {
13715 nlmsg_free(msg);
13716 return;
13717 }
13718
13719 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13720 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13721 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13722 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13723 (reason_code > 0 &&
13724 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13725 goto nla_put_failure;
13726
9c90a9f6 13727 genlmsg_end(msg, hdr);
3475b094 13728
68eb5503 13729 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13730 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 13731 return;
13732
13733 nla_put_failure:
13734 genlmsg_cancel(msg, hdr);
13735 nlmsg_free(msg);
13736}
13737EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13738
026331c4
JM		 13739static int nl80211_netlink_notify(struct notifier_block * nb,
13740 unsigned long state,
13741 void *_notify)
13742{
13743 struct netlink_notify *notify = _notify;
13744 struct cfg80211_registered_device *rdev;
13745 struct wireless_dev *wdev;
37c73b5f 13746 struct cfg80211_beacon_registration *reg, *tmp;
026331c4 13747
8f815cdd 13748 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
026331c4
JM		 13749 return NOTIFY_DONE;
13750
13751 rcu_read_lock();
13752
5e760230 13753 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 13754 bool schedule_destroy_work = false;
93a1e86c
JR		 13755 bool schedule_scan_stop = false;
13756 struct cfg80211_sched_scan_request *sched_scan_req =
13757 rcu_dereference(rdev->sched_scan_req);
13758
13759 if (sched_scan_req && notify->portid &&
13760 sched_scan_req->owner_nlportid == notify->portid)
13761 schedule_scan_stop = true;
78f22b6a 13762
53873f13 13763 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15e47304 13764 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 13765
78f22b6a
JB		 13766 if (wdev->owner_nlportid == notify->portid)
13767 schedule_destroy_work = true;
13768 }
13769
37c73b5f
BG		 13770 spin_lock_bh(&rdev->beacon_registrations_lock);
13771 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13772 list) {
13773 if (reg->nlportid == notify->portid) {
13774 list_del(&reg->list);
13775 kfree(reg);
13776 break;
13777 }
13778 }
13779 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 13780
13781 if (schedule_destroy_work) {
13782 struct cfg80211_iface_destroy *destroy;
13783
13784 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13785 if (destroy) {
13786 destroy->nlportid = notify->portid;
13787 spin_lock(&rdev->destroy_list_lock);
13788 list_add(&destroy->list, &rdev->destroy_list);
13789 spin_unlock(&rdev->destroy_list_lock);
13790 schedule_work(&rdev->destroy_work);
13791 }
93a1e86c
JR		 13792 } else if (schedule_scan_stop) {
13793 sched_scan_req->owner_nlportid = 0;
13794
13795 if (rdev->ops->sched_scan_stop &&
13796 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13797 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 13798 }
5e760230 13799 }
026331c4
JM		 13800
13801 rcu_read_unlock();
13802
05050753
I		 13803 /*
13804 * It is possible that the user space process that is controlling the
13805 * indoor setting disappeared, so notify the regulatory core.
13806 */
13807 regulatory_netlink_notify(notify->portid);
6784c7db 13808 return NOTIFY_OK;
026331c4
JM		 13809}
13810
13811static struct notifier_block nl80211_netlink_notifier = {
13812 .notifier_call = nl80211_netlink_notify,
13813};
13814
355199e0
JM		 13815void cfg80211_ft_event(struct net_device *netdev,
13816 struct cfg80211_ft_event_params *ft_event)
13817{
13818 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 13819 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 13820 struct sk_buff *msg;
13821 void *hdr;
355199e0
JM		 13822
13823 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13824
13825 if (!ft_event->target_ap)
13826 return;
13827
13828 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13829 if (!msg)
13830 return;
13831
13832 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 13833 if (!hdr)
13834 goto out;
355199e0 13835
ae917c9f
JB		 13836 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13837 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13838 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13839 goto out;
355199e0 13840
ae917c9f
JB		 13841 if (ft_event->ies &&
13842 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13843 goto out;
13844 if (ft_event->ric_ies &&
13845 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13846 ft_event->ric_ies))
13847 goto out;
355199e0 13848
9c90a9f6 13849 genlmsg_end(msg, hdr);
355199e0 13850
68eb5503 13851 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13852 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 13853 return;
13854 out:
13855 nlmsg_free(msg);
355199e0
JM		 13856}
13857EXPORT_SYMBOL(cfg80211_ft_event);
13858
5de17984
AS		 13859void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13860{
13861 struct cfg80211_registered_device *rdev;
13862 struct sk_buff *msg;
13863 void *hdr;
13864 u32 nlportid;
13865
f26cbf40 13866 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 13867 if (!rdev->crit_proto_nlportid)
13868 return;
13869
13870 nlportid = rdev->crit_proto_nlportid;
13871 rdev->crit_proto_nlportid = 0;
13872
13873 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13874 if (!msg)
13875 return;
13876
13877 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13878 if (!hdr)
13879 goto nla_put_failure;
13880
13881 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 13882 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13883 NL80211_ATTR_PAD))
5de17984
AS		 13884 goto nla_put_failure;
13885
13886 genlmsg_end(msg, hdr);
13887
13888 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13889 return;
13890
13891 nla_put_failure:
13892 if (hdr)
13893 genlmsg_cancel(msg, hdr);
13894 nlmsg_free(msg);
5de17984
AS		 13895}
13896EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13897
348baf0e
JB		 13898void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13899{
13900 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13901 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 13902 struct sk_buff *msg;
13903 void *hdr;
13904
13905 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13906 if (!msg)
13907 return;
13908
13909 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13910 if (!hdr)
13911 goto out;
13912
13913 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13914 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
2dad624e
ND		 13915 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13916 NL80211_ATTR_PAD))
348baf0e
JB		 13917 goto out;
13918
13919 genlmsg_end(msg, hdr);
13920
13921 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13922 NL80211_MCGRP_MLME, GFP_KERNEL);
13923 return;
13924 out:
13925 nlmsg_free(msg);
13926}
13927
55682965
JB		 13928/* initialisation/exit functions */
13929
13930int nl80211_init(void)
13931{
0d63cbb5 13932 int err;
55682965 13933
2a94fe48
JB		 13934 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13935 nl80211_mcgrps);
55682965
JB		 13936 if (err)
13937 return err;
13938
026331c4
JM		 13939 err = netlink_register_notifier(&nl80211_netlink_notifier);
13940 if (err)
13941 goto err_out;
13942
55682965
JB		 13943 return 0;
13944 err_out:
13945 genl_unregister_family(&nl80211_fam);
13946 return err;
13947}
13948
13949void nl80211_exit(void)
13950{
026331c4 13951 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 13952 genl_unregister_family(&nl80211_fam);
13953}
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