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cfg80211: always notify userspace of new wireless netdevs
[mirror_ubuntu-focal-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
0c9ca11b 6 * Copyright 2015-2016 Intel Deutschland GmbH
55682965
JB		 7 */
8
9#include <linux/if.h>
10#include <linux/module.h>
11#include <linux/err.h>
5a0e3ad6 12#include <linux/slab.h>
55682965
JB		 13#include <linux/list.h>
14#include <linux/if_ether.h>
15#include <linux/ieee80211.h>
16#include <linux/nl80211.h>
17#include <linux/rtnetlink.h>
18#include <linux/netlink.h>
2a519311 19#include <linux/etherdevice.h>
463d0183 20#include <net/net_namespace.h>
55682965
JB		 21#include <net/genetlink.h>
22#include <net/cfg80211.h>
463d0183 23#include <net/sock.h>
2a0e047e 24#include <net/inet_connection_sock.h>
55682965
JB		 25#include "core.h"
26#include "nl80211.h"
b2e1b302 27#include "reg.h"
e35e4d28 28#include "rdev-ops.h"
55682965 29
5fb628e9
JM		 30static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
31 struct genl_info *info,
32 struct cfg80211_crypto_settings *settings,
33 int cipher_limit);
34
f84f771d 35static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 36 struct genl_info *info);
f84f771d 37static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 38 struct genl_info *info);
39
55682965
JB		 40/* the netlink family */
41static struct genl_family nl80211_fam = {
fb4e1568
MH		 42 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
43 .name = NL80211_GENL_NAME, /* have users key off the name instead */
44 .hdrsize = 0, /* no private header */
45 .version = 1, /* no particular meaning now */
55682965 46 .maxattr = NL80211_ATTR_MAX,
463d0183 47 .netnsok = true,
4c476991
JB		 48 .pre_doit = nl80211_pre_doit,
49 .post_doit = nl80211_post_doit,
55682965
JB		 50};
51
2a94fe48
JB		 52/* multicast groups */
53enum nl80211_multicast_groups {
54 NL80211_MCGRP_CONFIG,
55 NL80211_MCGRP_SCAN,
56 NL80211_MCGRP_REGULATORY,
57 NL80211_MCGRP_MLME,
567ffc35 58 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 59 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
60};
61
62static const struct genl_multicast_group nl80211_mcgrps[] = {
71b836ec
JB		 63 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
64 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
65 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
66 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
67 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
2a94fe48 68#ifdef CONFIG_NL80211_TESTMODE
71b836ec 69 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
2a94fe48
JB		 70#endif
71};
72
89a54e48
JB		 73/* returns ERR_PTR values */
74static struct wireless_dev *
75__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 76{
89a54e48
JB		 77 struct cfg80211_registered_device *rdev;
78 struct wireless_dev *result = NULL;
79 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
80 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
81 u64 wdev_id;
82 int wiphy_idx = -1;
83 int ifidx = -1;
55682965 84
5fe231e8 85 ASSERT_RTNL();
55682965 86
89a54e48
JB		 87 if (!have_ifidx && !have_wdev_id)
88 return ERR_PTR(-EINVAL);
55682965 89
89a54e48
JB		 90 if (have_ifidx)
91 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
92 if (have_wdev_id) {
93 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
94 wiphy_idx = wdev_id >> 32;
55682965
JB		 95 }
96
89a54e48
JB		 97 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
98 struct wireless_dev *wdev;
99
100 if (wiphy_net(&rdev->wiphy) != netns)
101 continue;
102
103 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
104 continue;
105
53873f13 106 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
89a54e48
JB		 107 if (have_ifidx && wdev->netdev &&
108 wdev->netdev->ifindex == ifidx) {
109 result = wdev;
110 break;
111 }
112 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
113 result = wdev;
114 break;
115 }
116 }
89a54e48
JB		 117
118 if (result)
119 break;
120 }
121
122 if (result)
123 return result;
124 return ERR_PTR(-ENODEV);
55682965
JB		 125}
126
a9455408 127static struct cfg80211_registered_device *
878d9ec7 128__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 129{
7fee4778
JB		 130 struct cfg80211_registered_device *rdev = NULL, *tmp;
131 struct net_device *netdev;
a9455408 132
5fe231e8 133 ASSERT_RTNL();
a9455408 134
878d9ec7 135 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 136 !attrs[NL80211_ATTR_IFINDEX] &&
137 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 138 return ERR_PTR(-EINVAL);
139
878d9ec7 140 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 141 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 142 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 143
89a54e48
JB		 144 if (attrs[NL80211_ATTR_WDEV]) {
145 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
146 struct wireless_dev *wdev;
147 bool found = false;
148
149 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
150 if (tmp) {
151 /* make sure wdev exists */
53873f13 152 list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
89a54e48
JB		 153 if (wdev->identifier != (u32)wdev_id)
154 continue;
155 found = true;
156 break;
157 }
89a54e48
JB		 158
159 if (!found)
160 tmp = NULL;
161
162 if (rdev && tmp != rdev)
163 return ERR_PTR(-EINVAL);
164 rdev = tmp;
165 }
166 }
167
878d9ec7
JB		 168 if (attrs[NL80211_ATTR_IFINDEX]) {
169 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7a087e74 170
7f2b8562 171 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 172 if (netdev) {
173 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 174 tmp = wiphy_to_rdev(
175 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 176 else
177 tmp = NULL;
178
7fee4778
JB		 179 /* not wireless device -- return error */
180 if (!tmp)
181 return ERR_PTR(-EINVAL);
182
183 /* mismatch -- return error */
184 if (rdev && tmp != rdev)
185 return ERR_PTR(-EINVAL);
186
187 rdev = tmp;
a9455408 188 }
a9455408 189 }
a9455408 190
4f7eff10
JB		 191 if (!rdev)
192 return ERR_PTR(-ENODEV);
a9455408 193
4f7eff10
JB		 194 if (netns != wiphy_net(&rdev->wiphy))
195 return ERR_PTR(-ENODEV);
196
197 return rdev;
a9455408
JB		 198}
199
200/*
201 * This function returns a pointer to the driver
202 * that the genl_info item that is passed refers to.
a9455408
JB		 203 *
204 * The result of this can be a PTR_ERR and hence must
205 * be checked with IS_ERR() for errors.
206 */
207static struct cfg80211_registered_device *
4f7eff10 208cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 209{
5fe231e8 210 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 211}
212
55682965 213/* policy for the attributes */
8cd4d456 214static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 215 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
216 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 217 .len = 20-1 },
31888487 218 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 219
72bdcf34 220 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 221 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 222 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
223 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
224 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
225
b9a5f8ca
JM		 226 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
227 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
228 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
229 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 230 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 231 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 232
233 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
234 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
235 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 236
e007b857
EP		 237 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
238 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 239
b9454e83 240 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 241 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
242 .len = WLAN_MAX_KEY_LEN },
243 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
244 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
245 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 246 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 247 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 248
249 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
250 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
251 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_DATA_LEN },
253 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
254 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 255 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
256 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
257 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
258 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
259 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 260 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 261 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 262 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 263 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 264 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 265 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 266
b2e1b302
LR		 267 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
268 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
269
9f1ba906
JM		 270 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
271 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
272 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 273 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
274 .len = NL80211_MAX_SUPP_RATES },
50b12f59 275 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 276
24bdd9f4 277 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 278 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 279
6c739419 280 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 281
282 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
283 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
284 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 285 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
286 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 287
288 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
289 .len = IEEE80211_MAX_SSID_LEN },
290 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
291 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 292 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 293 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 294 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 295 [NL80211_ATTR_STA_FLAGS2] = {
296 .len = sizeof(struct nl80211_sta_flag_update),
297 },
3f77316c 298 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 299 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
300 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 301 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
302 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
303 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 304 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 305 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 306 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
307 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 308 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
309 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 310 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 311 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
312 .len = IEEE80211_MAX_DATA_LEN },
313 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 314 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 315 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 316 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 317 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 318 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
319 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 320 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 321 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
322 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 323 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 324 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 325 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 326 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 327 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 328 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 329 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 330 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 331 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 332 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
333 .len = IEEE80211_MAX_DATA_LEN },
334 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
335 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 336 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 337 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 338 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 339 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
341 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
342 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
343 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 344 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 345 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 346 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
347 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 348 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 349 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
350 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
351 .len = NL80211_HT_CAPABILITY_LEN
352 },
1d9d9213 353 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 354 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 355 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 356 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 357 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 358 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 359 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 360 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 361 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
362 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 363 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
364 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 365 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
366 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 367 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 368 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
369 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
370 .len = NL80211_VHT_CAPABILITY_LEN,
371 },
355199e0
JM		 372 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
373 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
374 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 375 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 376 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
377 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
378 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 379 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
380 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 381 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
382 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 383 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 384 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 385 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
386 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
387 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 388 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
389 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 390 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
391 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 392 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
18e5ca65 393 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 394 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 395 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 396 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
397 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
398 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 399 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 400 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 401 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
4b681c82 402 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
9c748934 403 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
05050753 404 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
34d50519 405 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
38de03d2 406 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
17b94247 407 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
c6e6a0c8
AE		 408 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
409 .len = VHT_MUMIMO_GROUPS_DATA_LEN
410 },
411 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
55682965
JB		 412};
413
e31b8213 414/* policy for the key attributes */
b54452b0 415static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 416 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 417 [NL80211_KEY_IDX] = { .type = NLA_U8 },
418 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 419 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 420 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
421 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 422 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 423 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
424};
425
426/* policy for the key default flags */
427static const struct nla_policy
428nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
429 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
430 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 431};
432
ff1b6e69
JB		 433/* policy for WoWLAN attributes */
434static const struct nla_policy
435nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
436 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
437 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
438 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
439 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 440 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
441 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
442 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
443 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 444 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 445 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 446};
447
448static const struct nla_policy
449nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
450 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
451 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
452 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
453 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
454 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
455 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
456 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
457 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
458 },
459 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
460 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
461 },
462 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
463 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
464 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 465};
466
be29b99a
AK		 467/* policy for coalesce rule attributes */
468static const struct nla_policy
469nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
470 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
471 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
472 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
473};
474
e5497d76
JB		 475/* policy for GTK rekey offload attributes */
476static const struct nla_policy
477nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
478 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
479 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
480 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
481};
482
a1f1c21c
LC		 483static const struct nla_policy
484nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 485 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 486 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 487 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 488};
489
3b06d277
AS		 490static const struct nla_policy
491nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
492 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
493 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
494};
495
38de03d2
AS		 496static const struct nla_policy
497nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
498 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
499 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
500 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
501 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
502 },
503};
504
97990a06
JB		 505static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
506 struct netlink_callback *cb,
507 struct cfg80211_registered_device **rdev,
508 struct wireless_dev **wdev)
a043897a 509{
97990a06 510 int err;
a043897a 511
97990a06 512 rtnl_lock();
a043897a 513
97990a06
JB		 514 if (!cb->args[0]) {
515 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
516 nl80211_fam.attrbuf, nl80211_fam.maxattr,
517 nl80211_policy);
518 if (err)
519 goto out_unlock;
67748893 520
97990a06
JB		 521 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
522 nl80211_fam.attrbuf);
523 if (IS_ERR(*wdev)) {
524 err = PTR_ERR(*wdev);
525 goto out_unlock;
526 }
f26cbf40 527 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 528 /* 0 is the first index - add 1 to parse only once */
529 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 530 cb->args[1] = (*wdev)->identifier;
531 } else {
c319d50b
JB		 532 /* subtract the 1 again here */
533 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 534 struct wireless_dev *tmp;
67748893 535
97990a06
JB		 536 if (!wiphy) {
537 err = -ENODEV;
538 goto out_unlock;
539 }
f26cbf40 540 *rdev = wiphy_to_rdev(wiphy);
97990a06 541 *wdev = NULL;
67748893 542
53873f13 543 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
97990a06
JB		 544 if (tmp->identifier == cb->args[1]) {
545 *wdev = tmp;
546 break;
547 }
548 }
67748893 549
97990a06
JB		 550 if (!*wdev) {
551 err = -ENODEV;
552 goto out_unlock;
553 }
67748893
JB		 554 }
555
67748893 556 return 0;
97990a06 557 out_unlock:
67748893
JB		 558 rtnl_unlock();
559 return err;
560}
561
97990a06 562static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 563{
67748893
JB		 564 rtnl_unlock();
565}
566
f4a11bb0
JB		 567/* IE validation */
568static bool is_valid_ie_attr(const struct nlattr *attr)
569{
570 const u8 *pos;
571 int len;
572
573 if (!attr)
574 return true;
575
576 pos = nla_data(attr);
577 len = nla_len(attr);
578
579 while (len) {
580 u8 elemlen;
581
582 if (len < 2)
583 return false;
584 len -= 2;
585
586 elemlen = pos[1];
587 if (elemlen > len)
588 return false;
589
590 len -= elemlen;
591 pos += 2 + elemlen;
592 }
593
594 return true;
595}
596
55682965 597/* message building helper */
15e47304 598static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 599 int flags, u8 cmd)
600{
601 /* since there is no private header just add the generic one */
15e47304 602 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 603}
604
5dab3b8a 605static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 606 struct ieee80211_channel *chan,
607 bool large)
5dab3b8a 608{
ea077c1c
RL		 609 /* Some channels must be completely excluded from the
610 * list to protect old user-space tools from breaking
611 */
612 if (!large && chan->flags &
613 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
614 return 0;
615
9360ffd1
DM		 616 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
617 chan->center_freq))
618 goto nla_put_failure;
5dab3b8a 619
9360ffd1
DM		 620 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
621 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
622 goto nla_put_failure;
8fe02e16
LR		 623 if (chan->flags & IEEE80211_CHAN_NO_IR) {
624 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
625 goto nla_put_failure;
626 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
627 goto nla_put_failure;
628 }
cdc89b97
JB		 629 if (chan->flags & IEEE80211_CHAN_RADAR) {
630 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
631 goto nla_put_failure;
632 if (large) {
633 u32 time;
634
635 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
636
637 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
638 chan->dfs_state))
639 goto nla_put_failure;
640 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
641 time))
642 goto nla_put_failure;
089027e5
JD		 643 if (nla_put_u32(msg,
644 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
645 chan->dfs_cac_ms))
646 goto nla_put_failure;
cdc89b97
JB		 647 }
648 }
5dab3b8a 649
fe1abafd
JB		 650 if (large) {
651 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
652 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
653 goto nla_put_failure;
654 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
655 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
656 goto nla_put_failure;
657 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
658 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
659 goto nla_put_failure;
660 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
661 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
662 goto nla_put_failure;
570dbde1
DS		 663 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
664 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
665 goto nla_put_failure;
06f207fc
AN		 666 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
667 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 668 goto nla_put_failure;
ea077c1c
RL		 669 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
670 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
671 goto nla_put_failure;
672 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
673 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
674 goto nla_put_failure;
fe1abafd
JB		 675 }
676
9360ffd1
DM		 677 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
678 DBM_TO_MBM(chan->max_power)))
679 goto nla_put_failure;
5dab3b8a
LR		 680
681 return 0;
682
683 nla_put_failure:
684 return -ENOBUFS;
685}
686
55682965
JB		 687/* netlink command implementations */
688
b9454e83
JB		 689struct key_parse {
690 struct key_params p;
691 int idx;
e31b8213 692 int type;
b9454e83 693 bool def, defmgmt;
dbd2fd65 694 bool def_uni, def_multi;
b9454e83
JB		 695};
696
697static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
698{
699 struct nlattr *tb[NL80211_KEY_MAX + 1];
700 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
701 nl80211_key_policy);
702 if (err)
703 return err;
704
705 k->def = !!tb[NL80211_KEY_DEFAULT];
706 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
707
dbd2fd65
JB		 708 if (k->def) {
709 k->def_uni = true;
710 k->def_multi = true;
711 }
712 if (k->defmgmt)
713 k->def_multi = true;
714
b9454e83
JB		 715 if (tb[NL80211_KEY_IDX])
716 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
717
718 if (tb[NL80211_KEY_DATA]) {
719 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
720 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
721 }
722
723 if (tb[NL80211_KEY_SEQ]) {
724 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
725 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
726 }
727
728 if (tb[NL80211_KEY_CIPHER])
729 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
730
e31b8213
JB		 731 if (tb[NL80211_KEY_TYPE]) {
732 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
733 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
734 return -EINVAL;
735 }
736
dbd2fd65
JB		 737 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
738 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
7a087e74 739
2da8f419
JB		 740 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
741 tb[NL80211_KEY_DEFAULT_TYPES],
742 nl80211_key_default_policy);
dbd2fd65
JB		 743 if (err)
744 return err;
745
746 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
747 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
748 }
749
b9454e83
JB		 750 return 0;
751}
752
753static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
754{
755 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
756 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
757 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
758 }
759
760 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
761 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
762 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
763 }
764
765 if (info->attrs[NL80211_ATTR_KEY_IDX])
766 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
767
768 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
769 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
770
771 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
772 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
773
dbd2fd65
JB		 774 if (k->def) {
775 k->def_uni = true;
776 k->def_multi = true;
777 }
778 if (k->defmgmt)
779 k->def_multi = true;
780
e31b8213
JB		 781 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
782 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
783 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
784 return -EINVAL;
785 }
786
dbd2fd65
JB		 787 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
788 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
789 int err = nla_parse_nested(
790 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
791 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
792 nl80211_key_default_policy);
793 if (err)
794 return err;
795
796 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
797 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
798 }
799
b9454e83
JB		 800 return 0;
801}
802
803static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
804{
805 int err;
806
807 memset(k, 0, sizeof(*k));
808 k->idx = -1;
e31b8213 809 k->type = -1;
b9454e83
JB		 810
811 if (info->attrs[NL80211_ATTR_KEY])
812 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
813 else
814 err = nl80211_parse_key_old(info, k);
815
816 if (err)
817 return err;
818
819 if (k->def && k->defmgmt)
820 return -EINVAL;
821
dbd2fd65
JB		 822 if (k->defmgmt) {
823 if (k->def_uni || !k->def_multi)
824 return -EINVAL;
825 }
826
b9454e83
JB		 827 if (k->idx != -1) {
828 if (k->defmgmt) {
829 if (k->idx < 4 || k->idx > 5)
830 return -EINVAL;
831 } else if (k->def) {
832 if (k->idx < 0 || k->idx > 3)
833 return -EINVAL;
834 } else {
835 if (k->idx < 0 || k->idx > 5)
836 return -EINVAL;
837 }
838 }
839
840 return 0;
841}
842
fffd0934
JB		 843static struct cfg80211_cached_keys *
844nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 845 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 846{
847 struct key_parse parse;
848 struct nlattr *key;
849 struct cfg80211_cached_keys *result;
850 int rem, err, def = 0;
851
852 result = kzalloc(sizeof(*result), GFP_KERNEL);
853 if (!result)
854 return ERR_PTR(-ENOMEM);
855
856 result->def = -1;
857 result->defmgmt = -1;
858
859 nla_for_each_nested(key, keys, rem) {
860 memset(&parse, 0, sizeof(parse));
861 parse.idx = -1;
862
863 err = nl80211_parse_key_new(key, &parse);
864 if (err)
865 goto error;
866 err = -EINVAL;
867 if (!parse.p.key)
868 goto error;
869 if (parse.idx < 0 || parse.idx > 4)
870 goto error;
871 if (parse.def) {
872 if (def)
873 goto error;
874 def = 1;
875 result->def = parse.idx;
dbd2fd65
JB		 876 if (!parse.def_uni || !parse.def_multi)
877 goto error;
fffd0934
JB		 878 } else if (parse.defmgmt)
879 goto error;
880 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 881 parse.idx, false, NULL);
fffd0934
JB		 882 if (err)
883 goto error;
884 result->params[parse.idx].cipher = parse.p.cipher;
885 result->params[parse.idx].key_len = parse.p.key_len;
886 result->params[parse.idx].key = result->data[parse.idx];
887 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 888
889 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
890 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
891 if (no_ht)
892 *no_ht = true;
893 }
fffd0934
JB		 894 }
895
896 return result;
897 error:
898 kfree(result);
899 return ERR_PTR(err);
900}
901
902static int nl80211_key_allowed(struct wireless_dev *wdev)
903{
904 ASSERT_WDEV_LOCK(wdev);
905
fffd0934
JB		 906 switch (wdev->iftype) {
907 case NL80211_IFTYPE_AP:
908 case NL80211_IFTYPE_AP_VLAN:
074ac8df 909 case NL80211_IFTYPE_P2P_GO:
ff973af7 910 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 911 break;
912 case NL80211_IFTYPE_ADHOC:
fffd0934 913 case NL80211_IFTYPE_STATION:
074ac8df 914 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 915 if (!wdev->current_bss)
fffd0934
JB		 916 return -ENOLINK;
917 break;
de4fcbad 918 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 919 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 920 case NL80211_IFTYPE_MONITOR:
921 case NL80211_IFTYPE_P2P_DEVICE:
922 case NL80211_IFTYPE_WDS:
923 case NUM_NL80211_IFTYPES:
fffd0934
JB		 924 return -EINVAL;
925 }
926
927 return 0;
928}
929
664834de
JM		 930static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
931 struct nlattr *tb)
932{
933 struct ieee80211_channel *chan;
934
935 if (tb == NULL)
936 return NULL;
937 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
938 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
939 return NULL;
940 return chan;
941}
942
7527a782
JB		 943static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
944{
945 struct nlattr *nl_modes = nla_nest_start(msg, attr);
946 int i;
947
948 if (!nl_modes)
949 goto nla_put_failure;
950
951 i = 0;
952 while (ifmodes) {
9360ffd1
DM		 953 if ((ifmodes & 1) && nla_put_flag(msg, i))
954 goto nla_put_failure;
7527a782
JB		 955 ifmodes >>= 1;
956 i++;
957 }
958
959 nla_nest_end(msg, nl_modes);
960 return 0;
961
962nla_put_failure:
963 return -ENOBUFS;
964}
965
966static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 967 struct sk_buff *msg,
968 bool large)
7527a782
JB		 969{
970 struct nlattr *nl_combis;
971 int i, j;
972
973 nl_combis = nla_nest_start(msg,
974 NL80211_ATTR_INTERFACE_COMBINATIONS);
975 if (!nl_combis)
976 goto nla_put_failure;
977
978 for (i = 0; i < wiphy->n_iface_combinations; i++) {
979 const struct ieee80211_iface_combination *c;
980 struct nlattr *nl_combi, *nl_limits;
981
982 c = &wiphy->iface_combinations[i];
983
984 nl_combi = nla_nest_start(msg, i + 1);
985 if (!nl_combi)
986 goto nla_put_failure;
987
988 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
989 if (!nl_limits)
990 goto nla_put_failure;
991
992 for (j = 0; j < c->n_limits; j++) {
993 struct nlattr *nl_limit;
994
995 nl_limit = nla_nest_start(msg, j + 1);
996 if (!nl_limit)
997 goto nla_put_failure;
9360ffd1
DM		 998 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
999 c->limits[j].max))
1000 goto nla_put_failure;
7527a782
JB		 1001 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1002 c->limits[j].types))
1003 goto nla_put_failure;
1004 nla_nest_end(msg, nl_limit);
1005 }
1006
1007 nla_nest_end(msg, nl_limits);
1008
9360ffd1
DM		 1009 if (c->beacon_int_infra_match &&
1010 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1011 goto nla_put_failure;
1012 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1013 c->num_different_channels) ||
1014 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1015 c->max_interfaces))
1016 goto nla_put_failure;
cdc89b97 1017 if (large &&
8c48b50a
FF		 1018 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1019 c->radar_detect_widths) ||
1020 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1021 c->radar_detect_regions)))
cdc89b97 1022 goto nla_put_failure;
7527a782
JB		 1023
1024 nla_nest_end(msg, nl_combi);
1025 }
1026
1027 nla_nest_end(msg, nl_combis);
1028
1029 return 0;
1030nla_put_failure:
1031 return -ENOBUFS;
1032}
1033
3713b4e3 1034#ifdef CONFIG_PM
b56cf720
JB		 1035static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1036 struct sk_buff *msg)
1037{
964dc9e2 1038 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1039 struct nlattr *nl_tcp;
1040
1041 if (!tcp)
1042 return 0;
1043
1044 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1045 if (!nl_tcp)
1046 return -ENOBUFS;
1047
1048 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1049 tcp->data_payload_max))
1050 return -ENOBUFS;
1051
1052 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1053 tcp->data_payload_max))
1054 return -ENOBUFS;
1055
1056 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1057 return -ENOBUFS;
1058
1059 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1060 sizeof(*tcp->tok), tcp->tok))
1061 return -ENOBUFS;
1062
1063 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1064 tcp->data_interval_max))
1065 return -ENOBUFS;
1066
1067 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1068 tcp->wake_payload_max))
1069 return -ENOBUFS;
1070
1071 nla_nest_end(msg, nl_tcp);
1072 return 0;
1073}
1074
3713b4e3 1075static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1076 struct cfg80211_registered_device *rdev,
b56cf720 1077 bool large)
55682965 1078{
3713b4e3 1079 struct nlattr *nl_wowlan;
55682965 1080
1b8ec87a 1081 if (!rdev->wiphy.wowlan)
3713b4e3 1082 return 0;
55682965 1083
3713b4e3
JB		 1084 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1085 if (!nl_wowlan)
1086 return -ENOBUFS;
9360ffd1 1087
1b8ec87a 1088 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1089 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1090 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1091 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1092 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1093 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1094 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1095 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1096 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1097 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1098 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1099 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1100 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1101 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1102 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1103 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1104 return -ENOBUFS;
9360ffd1 1105
1b8ec87a 1106 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1107 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1108 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1109 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1110 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1111 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1112 };
9360ffd1 1113
3713b4e3
JB		 1114 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1115 sizeof(pat), &pat))
1116 return -ENOBUFS;
1117 }
9360ffd1 1118
75453ccb
LC		 1119 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1120 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1121 rdev->wiphy.wowlan->max_nd_match_sets))
1122 return -ENOBUFS;
1123
1b8ec87a 1124 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1125 return -ENOBUFS;
1126
3713b4e3 1127 nla_nest_end(msg, nl_wowlan);
9360ffd1 1128
3713b4e3
JB		 1129 return 0;
1130}
1131#endif
9360ffd1 1132
be29b99a 1133static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1134 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1135{
1136 struct nl80211_coalesce_rule_support rule;
1137
1b8ec87a 1138 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1139 return 0;
1140
1b8ec87a
ZG		 1141 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1142 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1143 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1144 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1145 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1146 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1147
1148 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1149 return -ENOBUFS;
1150
1151 return 0;
1152}
1153
3713b4e3
JB		 1154static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1155 struct ieee80211_supported_band *sband)
1156{
1157 struct nlattr *nl_rates, *nl_rate;
1158 struct ieee80211_rate *rate;
1159 int i;
87bbbe22 1160
3713b4e3
JB		 1161 /* add HT info */
1162 if (sband->ht_cap.ht_supported &&
1163 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1164 sizeof(sband->ht_cap.mcs),
1165 &sband->ht_cap.mcs) ||
1166 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1167 sband->ht_cap.cap) ||
1168 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1169 sband->ht_cap.ampdu_factor) ||
1170 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1171 sband->ht_cap.ampdu_density)))
1172 return -ENOBUFS;
afe0cbf8 1173
3713b4e3
JB		 1174 /* add VHT info */
1175 if (sband->vht_cap.vht_supported &&
1176 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1177 sizeof(sband->vht_cap.vht_mcs),
1178 &sband->vht_cap.vht_mcs) ||
1179 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1180 sband->vht_cap.cap)))
1181 return -ENOBUFS;
f59ac048 1182
3713b4e3
JB		 1183 /* add bitrates */
1184 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1185 if (!nl_rates)
1186 return -ENOBUFS;
ee688b00 1187
3713b4e3
JB		 1188 for (i = 0; i < sband->n_bitrates; i++) {
1189 nl_rate = nla_nest_start(msg, i);
1190 if (!nl_rate)
1191 return -ENOBUFS;
ee688b00 1192
3713b4e3
JB		 1193 rate = &sband->bitrates[i];
1194 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1195 rate->bitrate))
1196 return -ENOBUFS;
1197 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1198 nla_put_flag(msg,
1199 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1200 return -ENOBUFS;
ee688b00 1201
3713b4e3
JB		 1202 nla_nest_end(msg, nl_rate);
1203 }
d51626df 1204
3713b4e3 1205 nla_nest_end(msg, nl_rates);
bf0c111e 1206
3713b4e3
JB		 1207 return 0;
1208}
ee688b00 1209
3713b4e3
JB		 1210static int
1211nl80211_send_mgmt_stypes(struct sk_buff *msg,
1212 const struct ieee80211_txrx_stypes *mgmt_stypes)
1213{
1214 u16 stypes;
1215 struct nlattr *nl_ftypes, *nl_ifs;
1216 enum nl80211_iftype ift;
1217 int i;
ee688b00 1218
3713b4e3
JB		 1219 if (!mgmt_stypes)
1220 return 0;
5dab3b8a 1221
3713b4e3
JB		 1222 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1223 if (!nl_ifs)
1224 return -ENOBUFS;
e2f367f2 1225
3713b4e3
JB		 1226 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1227 nl_ftypes = nla_nest_start(msg, ift);
1228 if (!nl_ftypes)
1229 return -ENOBUFS;
1230 i = 0;
1231 stypes = mgmt_stypes[ift].tx;
1232 while (stypes) {
1233 if ((stypes & 1) &&
1234 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1235 (i << 4) | IEEE80211_FTYPE_MGMT))
1236 return -ENOBUFS;
1237 stypes >>= 1;
1238 i++;
ee688b00 1239 }
3713b4e3
JB		 1240 nla_nest_end(msg, nl_ftypes);
1241 }
ee688b00 1242
3713b4e3 1243 nla_nest_end(msg, nl_ifs);
ee688b00 1244
3713b4e3
JB		 1245 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1246 if (!nl_ifs)
1247 return -ENOBUFS;
ee688b00 1248
3713b4e3
JB		 1249 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1250 nl_ftypes = nla_nest_start(msg, ift);
1251 if (!nl_ftypes)
1252 return -ENOBUFS;
1253 i = 0;
1254 stypes = mgmt_stypes[ift].rx;
1255 while (stypes) {
1256 if ((stypes & 1) &&
1257 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1258 (i << 4) | IEEE80211_FTYPE_MGMT))
1259 return -ENOBUFS;
1260 stypes >>= 1;
1261 i++;
1262 }
1263 nla_nest_end(msg, nl_ftypes);
1264 }
1265 nla_nest_end(msg, nl_ifs);
ee688b00 1266
3713b4e3
JB		 1267 return 0;
1268}
ee688b00 1269
86e8cf98
JB		 1270struct nl80211_dump_wiphy_state {
1271 s64 filter_wiphy;
1272 long start;
019ae3a9 1273 long split_start, band_start, chan_start, capa_start;
86e8cf98
JB		 1274 bool split;
1275};
1276
1b8ec87a 1277static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1278 enum nl80211_commands cmd,
3713b4e3 1279 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1280 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1281{
1282 void *hdr;
1283 struct nlattr *nl_bands, *nl_band;
1284 struct nlattr *nl_freqs, *nl_freq;
1285 struct nlattr *nl_cmds;
57fbcce3 1286 enum nl80211_band band;
3713b4e3
JB		 1287 struct ieee80211_channel *chan;
1288 int i;
1289 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1290 rdev->wiphy.mgmt_stypes;
fe1abafd 1291 u32 features;
ee688b00 1292
3bb20556 1293 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1294 if (!hdr)
1295 return -ENOBUFS;
ee688b00 1296
86e8cf98
JB		 1297 if (WARN_ON(!state))
1298 return -EINVAL;
ee688b00 1299
1b8ec87a 1300 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1301 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1302 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1303 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1304 cfg80211_rdev_list_generation))
8fdc621d
JB		 1305 goto nla_put_failure;
1306
3bb20556
JB		 1307 if (cmd != NL80211_CMD_NEW_WIPHY)
1308 goto finish;
1309
86e8cf98 1310 switch (state->split_start) {
3713b4e3
JB		 1311 case 0:
1312 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1313 rdev->wiphy.retry_short) ||
3713b4e3 1314 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1315 rdev->wiphy.retry_long) ||
3713b4e3 1316 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1317 rdev->wiphy.frag_threshold) ||
3713b4e3 1318 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1319 rdev->wiphy.rts_threshold) ||
3713b4e3 1320 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1321 rdev->wiphy.coverage_class) ||
3713b4e3 1322 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1323 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1324 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1325 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1326 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1327 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1328 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1329 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1330 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1331 rdev->wiphy.max_match_sets) ||
1332 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1333 rdev->wiphy.max_sched_scan_plans) ||
1334 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1335 rdev->wiphy.max_sched_scan_plan_interval) ||
1336 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1337 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1338 goto nla_put_failure;
3713b4e3 1339
1b8ec87a 1340 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1341 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1342 goto nla_put_failure;
1b8ec87a 1343 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1344 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1345 goto nla_put_failure;
1b8ec87a 1346 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1347 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1348 goto nla_put_failure;
1b8ec87a 1349 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1350 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1351 goto nla_put_failure;
1b8ec87a 1352 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1353 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1354 goto nla_put_failure;
1b8ec87a 1355 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1356 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1357 goto nla_put_failure;
86e8cf98
JB		 1358 state->split_start++;
1359 if (state->split)
3713b4e3
JB		 1360 break;
1361 case 1:
1362 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1363 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1364 rdev->wiphy.cipher_suites))
3713b4e3 1365 goto nla_put_failure;
4745fc09 1366
3713b4e3 1367 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1368 rdev->wiphy.max_num_pmkids))
3713b4e3 1369 goto nla_put_failure;
b23aa676 1370
1b8ec87a 1371 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1372 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1373 goto nla_put_failure;
b23aa676 1374
3713b4e3 1375 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1376 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1377 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1378 rdev->wiphy.available_antennas_rx))
9360ffd1 1379 goto nla_put_failure;
b23aa676 1380
1b8ec87a 1381 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1382 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1383 rdev->wiphy.probe_resp_offload))
3713b4e3 1384 goto nla_put_failure;
8fdc621d 1385
1b8ec87a
ZG		 1386 if ((rdev->wiphy.available_antennas_tx ||
1387 rdev->wiphy.available_antennas_rx) &&
1388 rdev->ops->get_antenna) {
3713b4e3
JB		 1389 u32 tx_ant = 0, rx_ant = 0;
1390 int res;
7a087e74 1391
1b8ec87a 1392 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1393 if (!res) {
1394 if (nla_put_u32(msg,
1395 NL80211_ATTR_WIPHY_ANTENNA_TX,
1396 tx_ant) ||
1397 nla_put_u32(msg,
1398 NL80211_ATTR_WIPHY_ANTENNA_RX,
1399 rx_ant))
1400 goto nla_put_failure;
1401 }
1402 }
a293911d 1403
86e8cf98
JB		 1404 state->split_start++;
1405 if (state->split)
3713b4e3
JB		 1406 break;
1407 case 2:
1408 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1409 rdev->wiphy.interface_modes))
3713b4e3 1410 goto nla_put_failure;
86e8cf98
JB		 1411 state->split_start++;
1412 if (state->split)
3713b4e3
JB		 1413 break;
1414 case 3:
1415 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1416 if (!nl_bands)
1417 goto nla_put_failure;
f7ca38df 1418
86e8cf98 1419 for (band = state->band_start;
57fbcce3 1420 band < NUM_NL80211_BANDS; band++) {
3713b4e3 1421 struct ieee80211_supported_band *sband;
2e161f78 1422
1b8ec87a 1423 sband = rdev->wiphy.bands[band];
2e161f78 1424
3713b4e3
JB		 1425 if (!sband)
1426 continue;
1427
1428 nl_band = nla_nest_start(msg, band);
1429 if (!nl_band)
2e161f78 1430 goto nla_put_failure;
3713b4e3 1431
86e8cf98 1432 switch (state->chan_start) {
3713b4e3
JB		 1433 case 0:
1434 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1435 goto nla_put_failure;
86e8cf98
JB		 1436 state->chan_start++;
1437 if (state->split)
3713b4e3
JB		 1438 break;
1439 default:
1440 /* add frequencies */
1441 nl_freqs = nla_nest_start(
1442 msg, NL80211_BAND_ATTR_FREQS);
1443 if (!nl_freqs)
1444 goto nla_put_failure;
1445
86e8cf98 1446 for (i = state->chan_start - 1;
3713b4e3
JB		 1447 i < sband->n_channels;
1448 i++) {
1449 nl_freq = nla_nest_start(msg, i);
1450 if (!nl_freq)
1451 goto nla_put_failure;
1452
1453 chan = &sband->channels[i];
1454
86e8cf98
JB		 1455 if (nl80211_msg_put_channel(
1456 msg, chan,
1457 state->split))
3713b4e3
JB		 1458 goto nla_put_failure;
1459
1460 nla_nest_end(msg, nl_freq);
86e8cf98 1461 if (state->split)
3713b4e3
JB		 1462 break;
1463 }
1464 if (i < sband->n_channels)
86e8cf98 1465 state->chan_start = i + 2;
3713b4e3 1466 else
86e8cf98 1467 state->chan_start = 0;
3713b4e3
JB		 1468 nla_nest_end(msg, nl_freqs);
1469 }
1470
1471 nla_nest_end(msg, nl_band);
1472
86e8cf98 1473 if (state->split) {
3713b4e3 1474 /* start again here */
86e8cf98 1475 if (state->chan_start)
3713b4e3
JB		 1476 band--;
1477 break;
2e161f78 1478 }
2e161f78 1479 }
3713b4e3 1480 nla_nest_end(msg, nl_bands);
2e161f78 1481
57fbcce3 1482 if (band < NUM_NL80211_BANDS)
86e8cf98 1483 state->band_start = band + 1;
3713b4e3 1484 else
86e8cf98 1485 state->band_start = 0;
74b70a4e 1486
3713b4e3 1487 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1488 if (state->band_start == 0 && state->chan_start == 0)
1489 state->split_start++;
1490 if (state->split)
3713b4e3
JB		 1491 break;
1492 case 4:
1493 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1494 if (!nl_cmds)
2e161f78
JB		 1495 goto nla_put_failure;
1496
3713b4e3
JB		 1497 i = 0;
1498#define CMD(op, n) \
1499 do { \
1b8ec87a 1500 if (rdev->ops->op) { \
3713b4e3
JB		 1501 i++; \
1502 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1503 goto nla_put_failure; \
1504 } \
1505 } while (0)
1506
1507 CMD(add_virtual_intf, NEW_INTERFACE);
1508 CMD(change_virtual_intf, SET_INTERFACE);
1509 CMD(add_key, NEW_KEY);
1510 CMD(start_ap, START_AP);
1511 CMD(add_station, NEW_STATION);
1512 CMD(add_mpath, NEW_MPATH);
1513 CMD(update_mesh_config, SET_MESH_CONFIG);
1514 CMD(change_bss, SET_BSS);
1515 CMD(auth, AUTHENTICATE);
1516 CMD(assoc, ASSOCIATE);
1517 CMD(deauth, DEAUTHENTICATE);
1518 CMD(disassoc, DISASSOCIATE);
1519 CMD(join_ibss, JOIN_IBSS);
1520 CMD(join_mesh, JOIN_MESH);
1521 CMD(set_pmksa, SET_PMKSA);
1522 CMD(del_pmksa, DEL_PMKSA);
1523 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1524 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1525 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1526 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1527 CMD(mgmt_tx, FRAME);
1528 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1529 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1530 i++;
1531 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1532 goto nla_put_failure;
2e161f78 1533 }
1b8ec87a
ZG		 1534 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1535 rdev->ops->join_mesh) {
3713b4e3
JB		 1536 i++;
1537 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1538 goto nla_put_failure;
1539 }
1540 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1541 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1542 CMD(tdls_mgmt, TDLS_MGMT);
1543 CMD(tdls_oper, TDLS_OPER);
1544 }
1b8ec87a 1545 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1546 CMD(sched_scan_start, START_SCHED_SCAN);
1547 CMD(probe_client, PROBE_CLIENT);
1548 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1549 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1550 i++;
1551 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1552 goto nla_put_failure;
1553 }
1554 CMD(start_p2p_device, START_P2P_DEVICE);
1555 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1556#ifdef CONFIG_NL80211_TESTMODE
1557 CMD(testmode_cmd, TESTMODE);
1558#endif
86e8cf98 1559 if (state->split) {
5de17984
AS		 1560 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1561 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1562 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1563 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1564 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1565 if (rdev->wiphy.features &
1566 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1567 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1568 }
02df00eb 1569 /* add into the if now */
3713b4e3 1570#undef CMD
ff1b6e69 1571
1b8ec87a 1572 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1573 i++;
1574 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1575 goto nla_put_failure;
ff1b6e69
JB		 1576 }
1577
1b8ec87a 1578 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1579 i++;
1580 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1581 goto nla_put_failure;
1582 }
1583
1584 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1585 state->split_start++;
1586 if (state->split)
3713b4e3
JB		 1587 break;
1588 case 5:
1b8ec87a
ZG		 1589 if (rdev->ops->remain_on_channel &&
1590 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1591 nla_put_u32(msg,
1592 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1593 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1594 goto nla_put_failure;
1595
1b8ec87a 1596 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1597 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1598 goto nla_put_failure;
1599
1600 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1601 goto nla_put_failure;
86e8cf98
JB		 1602 state->split_start++;
1603 if (state->split)
3713b4e3
JB		 1604 break;
1605 case 6:
1606#ifdef CONFIG_PM
1b8ec87a 1607 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1608 goto nla_put_failure;
86e8cf98
JB		 1609 state->split_start++;
1610 if (state->split)
3713b4e3
JB		 1611 break;
1612#else
86e8cf98 1613 state->split_start++;
dfb89c56 1614#endif
3713b4e3
JB		 1615 case 7:
1616 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1617 rdev->wiphy.software_iftypes))
3713b4e3 1618 goto nla_put_failure;
ff1b6e69 1619
1b8ec87a 1620 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1621 state->split))
3713b4e3 1622 goto nla_put_failure;
7527a782 1623
86e8cf98
JB		 1624 state->split_start++;
1625 if (state->split)
3713b4e3
JB		 1626 break;
1627 case 8:
1b8ec87a 1628 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1629 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1630 rdev->wiphy.ap_sme_capa))
3713b4e3 1631 goto nla_put_failure;
7527a782 1632
1b8ec87a 1633 features = rdev->wiphy.features;
fe1abafd
JB		 1634 /*
1635 * We can only add the per-channel limit information if the
1636 * dump is split, otherwise it makes it too big. Therefore
1637 * only advertise it in that case.
1638 */
86e8cf98 1639 if (state->split)
fe1abafd
JB		 1640 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1641 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1642 goto nla_put_failure;
562a7480 1643
1b8ec87a 1644 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1645 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1646 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1647 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1648 goto nla_put_failure;
1f074bd8 1649
1b8ec87a
ZG		 1650 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1651 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1652 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1653 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1654 goto nla_put_failure;
7e7c8926 1655
3713b4e3
JB		 1656 /*
1657 * Any information below this point is only available to
1658 * applications that can deal with it being split. This
1659 * helps ensure that newly added capabilities don't break
1660 * older tools by overrunning their buffers.
1661 *
1662 * We still increment split_start so that in the split
1663 * case we'll continue with more data in the next round,
1664 * but break unconditionally so unsplit data stops here.
1665 */
86e8cf98 1666 state->split_start++;
3713b4e3
JB		 1667 break;
1668 case 9:
1b8ec87a 1669 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1670 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1671 rdev->wiphy.extended_capabilities_len,
1672 rdev->wiphy.extended_capabilities) ||
fe1abafd 1673 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1674 rdev->wiphy.extended_capabilities_len,
1675 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1676 goto nla_put_failure;
a50df0c4 1677
1b8ec87a 1678 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1679 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1680 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1681 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1682 goto nla_put_failure;
1683
be29b99a
AK		 1684 state->split_start++;
1685 break;
1686 case 10:
1b8ec87a 1687 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1688 goto nla_put_failure;
1689
1b8ec87a 1690 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1691 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1692 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1693 goto nla_put_failure;
b43504cf 1694
1b8ec87a 1695 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1696 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1697 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1698 goto nla_put_failure;
1699
ad7e718c
JB		 1700 state->split_start++;
1701 break;
1702 case 11:
1b8ec87a 1703 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1704 const struct nl80211_vendor_cmd_info *info;
1705 struct nlattr *nested;
1706
1707 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1708 if (!nested)
1709 goto nla_put_failure;
1710
1b8ec87a
ZG		 1711 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1712 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1713 if (nla_put(msg, i + 1, sizeof(*info), info))
1714 goto nla_put_failure;
1715 }
1716 nla_nest_end(msg, nested);
1717 }
1718
1b8ec87a 1719 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1720 const struct nl80211_vendor_cmd_info *info;
1721 struct nlattr *nested;
ad7e718c 1722
567ffc35
JB		 1723 nested = nla_nest_start(msg,
1724 NL80211_ATTR_VENDOR_EVENTS);
1725 if (!nested)
ad7e718c 1726 goto nla_put_failure;
567ffc35 1727
1b8ec87a
ZG		 1728 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1729 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1730 if (nla_put(msg, i + 1, sizeof(*info), info))
1731 goto nla_put_failure;
1732 }
1733 nla_nest_end(msg, nested);
1734 }
9a774c78
AO		 1735 state->split_start++;
1736 break;
1737 case 12:
1738 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1739 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1740 rdev->wiphy.max_num_csa_counters))
1741 goto nla_put_failure;
01e0daa4 1742
1bdd716c
AN		 1743 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1744 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1745 goto nla_put_failure;
1746
d75bb06b
GKS		 1747 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1748 sizeof(rdev->wiphy.ext_features),
1749 rdev->wiphy.ext_features))
1750 goto nla_put_failure;
1751
38de03d2
AS		 1752 if (rdev->wiphy.bss_select_support) {
1753 struct nlattr *nested;
1754 u32 bss_select_support = rdev->wiphy.bss_select_support;
1755
1756 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1757 if (!nested)
1758 goto nla_put_failure;
1759
1760 i = 0;
1761 while (bss_select_support) {
1762 if ((bss_select_support & 1) &&
1763 nla_put_flag(msg, i))
1764 goto nla_put_failure;
1765 i++;
1766 bss_select_support >>= 1;
1767 }
1768 nla_nest_end(msg, nested);
1769 }
1770
019ae3a9
KV		 1771 state->split_start++;
1772 break;
1773 case 13:
1774 if (rdev->wiphy.num_iftype_ext_capab &&
1775 rdev->wiphy.iftype_ext_capab) {
1776 struct nlattr *nested_ext_capab, *nested;
1777
1778 nested = nla_nest_start(msg,
1779 NL80211_ATTR_IFTYPE_EXT_CAPA);
1780 if (!nested)
1781 goto nla_put_failure;
1782
1783 for (i = state->capa_start;
1784 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1785 const struct wiphy_iftype_ext_capab *capab;
1786
1787 capab = &rdev->wiphy.iftype_ext_capab[i];
1788
1789 nested_ext_capab = nla_nest_start(msg, i);
1790 if (!nested_ext_capab ||
1791 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1792 capab->iftype) ||
1793 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1794 capab->extended_capabilities_len,
1795 capab->extended_capabilities) ||
1796 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1797 capab->extended_capabilities_len,
1798 capab->extended_capabilities_mask))
1799 goto nla_put_failure;
1800
1801 nla_nest_end(msg, nested_ext_capab);
1802 if (state->split)
1803 break;
1804 }
1805 nla_nest_end(msg, nested);
1806 if (i < rdev->wiphy.num_iftype_ext_capab) {
1807 state->capa_start = i + 1;
1808 break;
1809 }
1810 }
1811
3713b4e3 1812 /* done */
86e8cf98 1813 state->split_start = 0;
3713b4e3
JB		 1814 break;
1815 }
3bb20556 1816 finish:
053c095a
JB		 1817 genlmsg_end(msg, hdr);
1818 return 0;
55682965
JB		 1819
1820 nla_put_failure:
bc3ed28c
TG		 1821 genlmsg_cancel(msg, hdr);
1822 return -EMSGSIZE;
55682965
JB		 1823}
1824
86e8cf98
JB		 1825static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1826 struct netlink_callback *cb,
1827 struct nl80211_dump_wiphy_state *state)
1828{
1829 struct nlattr **tb = nl80211_fam.attrbuf;
1830 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1831 tb, nl80211_fam.maxattr, nl80211_policy);
1832 /* ignore parse errors for backward compatibility */
1833 if (ret)
1834 return 0;
1835
1836 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1837 if (tb[NL80211_ATTR_WIPHY])
1838 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1839 if (tb[NL80211_ATTR_WDEV])
1840 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1841 if (tb[NL80211_ATTR_IFINDEX]) {
1842 struct net_device *netdev;
1843 struct cfg80211_registered_device *rdev;
1844 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1845
7f2b8562 1846 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1847 if (!netdev)
1848 return -ENODEV;
1849 if (netdev->ieee80211_ptr) {
f26cbf40 1850 rdev = wiphy_to_rdev(
86e8cf98
JB		 1851 netdev->ieee80211_ptr->wiphy);
1852 state->filter_wiphy = rdev->wiphy_idx;
1853 }
86e8cf98
JB		 1854 }
1855
1856 return 0;
1857}
1858
55682965
JB		 1859static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1860{
645e77de 1861 int idx = 0, ret;
86e8cf98 1862 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1863 struct cfg80211_registered_device *rdev;
3a5a423b 1864
5fe231e8 1865 rtnl_lock();
86e8cf98
JB		 1866 if (!state) {
1867 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1868 if (!state) {
1869 rtnl_unlock();
86e8cf98 1870 return -ENOMEM;
3713b4e3 1871 }
86e8cf98
JB		 1872 state->filter_wiphy = -1;
1873 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1874 if (ret) {
1875 kfree(state);
1876 rtnl_unlock();
1877 return ret;
3713b4e3 1878 }
86e8cf98 1879 cb->args[0] = (long)state;
3713b4e3
JB		 1880 }
1881
1b8ec87a
ZG		 1882 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1883 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1884 continue;
86e8cf98 1885 if (++idx <= state->start)
55682965 1886 continue;
86e8cf98 1887 if (state->filter_wiphy != -1 &&
1b8ec87a 1888 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1889 continue;
1890 /* attempt to fit multiple wiphy data chunks into the skb */
1891 do {
3bb20556
JB		 1892 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1893 skb,
3713b4e3
JB		 1894 NETLINK_CB(cb->skb).portid,
1895 cb->nlh->nlmsg_seq,
86e8cf98 1896 NLM_F_MULTI, state);
3713b4e3
JB		 1897 if (ret < 0) {
1898 /*
1899 * If sending the wiphy data didn't fit (ENOBUFS
1900 * or EMSGSIZE returned), this SKB is still
1901 * empty (so it's not too big because another
1902 * wiphy dataset is already in the skb) and
1903 * we've not tried to adjust the dump allocation
1904 * yet ... then adjust the alloc size to be
1905 * bigger, and return 1 but with the empty skb.
1906 * This results in an empty message being RX'ed
1907 * in userspace, but that is ignored.
1908 *
1909 * We can then retry with the larger buffer.
1910 */
1911 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1912 !skb->len && !state->split &&
3713b4e3
JB		 1913 cb->min_dump_alloc < 4096) {
1914 cb->min_dump_alloc = 4096;
f12cb289 1915 state->split_start = 0;
d98cae64 1916 rtnl_unlock();
3713b4e3
JB		 1917 return 1;
1918 }
1919 idx--;
1920 break;
645e77de 1921 }
86e8cf98 1922 } while (state->split_start > 0);
3713b4e3 1923 break;
55682965 1924 }
5fe231e8 1925 rtnl_unlock();
55682965 1926
86e8cf98 1927 state->start = idx;
55682965
JB		 1928
1929 return skb->len;
1930}
1931
86e8cf98
JB		 1932static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1933{
1934 kfree((void *)cb->args[0]);
1935 return 0;
1936}
1937
55682965
JB		 1938static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1939{
1940 struct sk_buff *msg;
1b8ec87a 1941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1942 struct nl80211_dump_wiphy_state state = {};
55682965 1943
645e77de 1944 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1945 if (!msg)
4c476991 1946 return -ENOMEM;
55682965 1947
3bb20556
JB		 1948 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1949 info->snd_portid, info->snd_seq, 0,
86e8cf98 1950 &state) < 0) {
4c476991
JB		 1951 nlmsg_free(msg);
1952 return -ENOBUFS;
1953 }
55682965 1954
134e6375 1955 return genlmsg_reply(msg, info);
55682965
JB		 1956}
1957
31888487
JM		 1958static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1959 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1960 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1961 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1962 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1963 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1964};
1965
1966static int parse_txq_params(struct nlattr *tb[],
1967 struct ieee80211_txq_params *txq_params)
1968{
a3304b0a 1969 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1970 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1971 !tb[NL80211_TXQ_ATTR_AIFS])
1972 return -EINVAL;
1973
a3304b0a 1974 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1975 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1976 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1977 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1978 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1979
a3304b0a
JB		 1980 if (txq_params->ac >= NL80211_NUM_ACS)
1981 return -EINVAL;
1982
31888487
JM		 1983 return 0;
1984}
1985
f444de05
JB		 1986static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1987{
1988 /*
cc1d2806
JB		 1989 * You can only set the channel explicitly for WDS interfaces,
1990 * all others have their channel managed via their respective
1991 * "establish a connection" command (connect, join, ...)
1992 *
1993 * For AP/GO and mesh mode, the channel can be set with the
1994 * channel userspace API, but is only stored and passed to the
1995 * low-level driver when the AP starts or the mesh is joined.
1996 * This is for backward compatibility, userspace can also give
1997 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1998 *
1999 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 2000 * whatever else is going on, so they have their own special
2001 * operation to set the monitor channel if possible.
f444de05
JB		 2002 */
2003 return !wdev ||
2004 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 2005 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 2006 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2007 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 2008}
2009
683b6d3b
JB		 2010static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2011 struct genl_info *info,
2012 struct cfg80211_chan_def *chandef)
2013{
dbeca2ea 2014 u32 control_freq;
683b6d3b
JB		 2015
2016 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2017 return -EINVAL;
2018
2019 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2020
2021 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 2022 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2023 chandef->center_freq1 = control_freq;
2024 chandef->center_freq2 = 0;
683b6d3b
JB		 2025
2026 /* Primary channel not allowed */
2027 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2028 return -EINVAL;
2029
3d9d1d66
JB		 2030 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2031 enum nl80211_channel_type chantype;
2032
2033 chantype = nla_get_u32(
2034 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2035
2036 switch (chantype) {
2037 case NL80211_CHAN_NO_HT:
2038 case NL80211_CHAN_HT20:
2039 case NL80211_CHAN_HT40PLUS:
2040 case NL80211_CHAN_HT40MINUS:
2041 cfg80211_chandef_create(chandef, chandef->chan,
2042 chantype);
2043 break;
2044 default:
2045 return -EINVAL;
2046 }
2047 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2048 chandef->width =
2049 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2050 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2051 chandef->center_freq1 =
2052 nla_get_u32(
2053 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2054 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2055 chandef->center_freq2 =
2056 nla_get_u32(
2057 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2058 }
2059
9f5e8f6e 2060 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 2061 return -EINVAL;
2062
9f5e8f6e
JB		 2063 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2064 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 2065 return -EINVAL;
2066
2f301ab2
SW		 2067 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2068 chandef->width == NL80211_CHAN_WIDTH_10) &&
2069 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2070 return -EINVAL;
2071
683b6d3b
JB		 2072 return 0;
2073}
2074
f444de05 2075static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 2076 struct net_device *dev,
f444de05
JB		 2077 struct genl_info *info)
2078{
683b6d3b 2079 struct cfg80211_chan_def chandef;
f444de05 2080 int result;
e8c9bd5b 2081 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2082 struct wireless_dev *wdev = NULL;
e8c9bd5b 2083
e16821bc
JM		 2084 if (dev)
2085 wdev = dev->ieee80211_ptr;
f444de05
JB		 2086 if (!nl80211_can_set_dev_channel(wdev))
2087 return -EOPNOTSUPP;
e16821bc
JM		 2088 if (wdev)
2089 iftype = wdev->iftype;
f444de05 2090
683b6d3b
JB		 2091 result = nl80211_parse_chandef(rdev, info, &chandef);
2092 if (result)
2093 return result;
f444de05 2094
e8c9bd5b 2095 switch (iftype) {
aa430da4
JB		 2096 case NL80211_IFTYPE_AP:
2097 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2098 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2099 iftype)) {
aa430da4
JB		 2100 result = -EINVAL;
2101 break;
2102 }
e16821bc
JM		 2103 if (wdev->beacon_interval) {
2104 if (!dev || !rdev->ops->set_ap_chanwidth ||
2105 !(rdev->wiphy.features &
2106 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2107 result = -EBUSY;
2108 break;
2109 }
2110
2111 /* Only allow dynamic channel width changes */
2112 if (chandef.chan != wdev->preset_chandef.chan) {
2113 result = -EBUSY;
2114 break;
2115 }
2116 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2117 if (result)
2118 break;
2119 }
683b6d3b 2120 wdev->preset_chandef = chandef;
aa430da4
JB		 2121 result = 0;
2122 break;
cc1d2806 2123 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2124 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2125 break;
e8c9bd5b 2126 case NL80211_IFTYPE_MONITOR:
683b6d3b 2127 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2128 break;
aa430da4 2129 default:
e8c9bd5b 2130 result = -EINVAL;
f444de05 2131 }
f444de05
JB		 2132
2133 return result;
2134}
2135
2136static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2137{
4c476991
JB		 2138 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2139 struct net_device *netdev = info->user_ptr[1];
f444de05 2140
e16821bc 2141 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2142}
2143
e8347eba
BJ		 2144static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2145{
43b19952
JB		 2146 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2147 struct net_device *dev = info->user_ptr[1];
2148 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2149 const u8 *bssid;
e8347eba
BJ		 2150
2151 if (!info->attrs[NL80211_ATTR_MAC])
2152 return -EINVAL;
2153
43b19952
JB		 2154 if (netif_running(dev))
2155 return -EBUSY;
e8347eba 2156
43b19952
JB		 2157 if (!rdev->ops->set_wds_peer)
2158 return -EOPNOTSUPP;
e8347eba 2159
43b19952
JB		 2160 if (wdev->iftype != NL80211_IFTYPE_WDS)
2161 return -EOPNOTSUPP;
e8347eba
BJ		 2162
2163 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2164 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2165}
2166
55682965
JB		 2167static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2168{
2169 struct cfg80211_registered_device *rdev;
f444de05
JB		 2170 struct net_device *netdev = NULL;
2171 struct wireless_dev *wdev;
a1e567c8 2172 int result = 0, rem_txq_params = 0;
31888487 2173 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2174 u32 changed;
2175 u8 retry_short = 0, retry_long = 0;
2176 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2177 u8 coverage_class = 0;
55682965 2178
5fe231e8
JB		 2179 ASSERT_RTNL();
2180
f444de05
JB		 2181 /*
2182 * Try to find the wiphy and netdev. Normally this
2183 * function shouldn't need the netdev, but this is
2184 * done for backward compatibility -- previously
2185 * setting the channel was done per wiphy, but now
2186 * it is per netdev. Previous userland like hostapd
2187 * also passed a netdev to set_wiphy, so that it is
2188 * possible to let that go to the right netdev!
2189 */
4bbf4d56 2190
f444de05
JB		 2191 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2192 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2193
7f2b8562 2194 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2195 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2196 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2197 else
f444de05 2198 netdev = NULL;
4bbf4d56
JB		 2199 }
2200
f444de05 2201 if (!netdev) {
878d9ec7
JB		 2202 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2203 info->attrs);
5fe231e8 2204 if (IS_ERR(rdev))
4c476991 2205 return PTR_ERR(rdev);
f444de05
JB		 2206 wdev = NULL;
2207 netdev = NULL;
2208 result = 0;
71fe96bf 2209 } else
f444de05 2210 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2211
2212 /*
2213 * end workaround code, by now the rdev is available
2214 * and locked, and wdev may or may not be NULL.
2215 */
4bbf4d56
JB		 2216
2217 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2218 result = cfg80211_dev_rename(
2219 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2220
4bbf4d56 2221 if (result)
7f2b8562 2222 return result;
31888487
JM		 2223
2224 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2225 struct ieee80211_txq_params txq_params;
2226 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2227
7f2b8562
YX		 2228 if (!rdev->ops->set_txq_params)
2229 return -EOPNOTSUPP;
31888487 2230
7f2b8562
YX		 2231 if (!netdev)
2232 return -EINVAL;
f70f01c2 2233
133a3ff2 2234 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2235 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2236 return -EINVAL;
133a3ff2 2237
7f2b8562
YX		 2238 if (!netif_running(netdev))
2239 return -ENETDOWN;
2b5f8b0b 2240
31888487
JM		 2241 nla_for_each_nested(nl_txq_params,
2242 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2243 rem_txq_params) {
ae811e21
JB		 2244 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2245 nla_data(nl_txq_params),
2246 nla_len(nl_txq_params),
2247 txq_params_policy);
2248 if (result)
2249 return result;
31888487
JM		 2250 result = parse_txq_params(tb, &txq_params);
2251 if (result)
7f2b8562 2252 return result;
31888487 2253
e35e4d28
HG		 2254 result = rdev_set_txq_params(rdev, netdev,
2255 &txq_params);
31888487 2256 if (result)
7f2b8562 2257 return result;
31888487
JM		 2258 }
2259 }
55682965 2260
72bdcf34 2261 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2262 result = __nl80211_set_channel(
2263 rdev,
2264 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2265 info);
72bdcf34 2266 if (result)
7f2b8562 2267 return result;
72bdcf34
JM		 2268 }
2269
98d2ff8b 2270 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2271 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2272 enum nl80211_tx_power_setting type;
2273 int idx, mbm = 0;
2274
c8442118
JB		 2275 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2276 txp_wdev = NULL;
2277
7f2b8562
YX		 2278 if (!rdev->ops->set_tx_power)
2279 return -EOPNOTSUPP;
98d2ff8b
JO		 2280
2281 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2282 type = nla_get_u32(info->attrs[idx]);
2283
2284 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2285 (type != NL80211_TX_POWER_AUTOMATIC))
2286 return -EINVAL;
98d2ff8b
JO		 2287
2288 if (type != NL80211_TX_POWER_AUTOMATIC) {
2289 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2290 mbm = nla_get_u32(info->attrs[idx]);
2291 }
2292
c8442118 2293 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2294 if (result)
7f2b8562 2295 return result;
98d2ff8b
JO		 2296 }
2297
afe0cbf8
BR		 2298 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2299 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2300 u32 tx_ant, rx_ant;
7a087e74 2301
7f531e03
BR		 2302 if ((!rdev->wiphy.available_antennas_tx &&
2303 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2304 !rdev->ops->set_antenna)
2305 return -EOPNOTSUPP;
afe0cbf8
BR		 2306
2307 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2308 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2309
a7ffac95 2310 /* reject antenna configurations which don't match the
7f531e03
BR		 2311 * available antenna masks, except for the "all" mask */
2312 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2313 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2314 return -EINVAL;
a7ffac95 2315
7f531e03
BR		 2316 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2317 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2318
e35e4d28 2319 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2320 if (result)
7f2b8562 2321 return result;
afe0cbf8
BR		 2322 }
2323
b9a5f8ca
JM		 2324 changed = 0;
2325
2326 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2327 retry_short = nla_get_u8(
2328 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2329 if (retry_short == 0)
2330 return -EINVAL;
2331
b9a5f8ca
JM		 2332 changed |= WIPHY_PARAM_RETRY_SHORT;
2333 }
2334
2335 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2336 retry_long = nla_get_u8(
2337 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2338 if (retry_long == 0)
2339 return -EINVAL;
2340
b9a5f8ca
JM		 2341 changed |= WIPHY_PARAM_RETRY_LONG;
2342 }
2343
2344 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2345 frag_threshold = nla_get_u32(
2346 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2347 if (frag_threshold < 256)
2348 return -EINVAL;
2349
b9a5f8ca
JM		 2350 if (frag_threshold != (u32) -1) {
2351 /*
2352 * Fragments (apart from the last one) are required to
2353 * have even length. Make the fragmentation code
2354 * simpler by stripping LSB should someone try to use
2355 * odd threshold value.
2356 */
2357 frag_threshold &= ~0x1;
2358 }
2359 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2360 }
2361
2362 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2363 rts_threshold = nla_get_u32(
2364 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2365 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2366 }
2367
81077e82 2368 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2369 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2370 return -EINVAL;
2371
81077e82
LT		 2372 coverage_class = nla_get_u8(
2373 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2374 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2375 }
2376
3057dbfd
LB		 2377 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2378 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2379 return -EOPNOTSUPP;
2380
2381 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2382 }
2383
b9a5f8ca
JM		 2384 if (changed) {
2385 u8 old_retry_short, old_retry_long;
2386 u32 old_frag_threshold, old_rts_threshold;
81077e82 2387 u8 old_coverage_class;
b9a5f8ca 2388
7f2b8562
YX		 2389 if (!rdev->ops->set_wiphy_params)
2390 return -EOPNOTSUPP;
b9a5f8ca
JM		 2391
2392 old_retry_short = rdev->wiphy.retry_short;
2393 old_retry_long = rdev->wiphy.retry_long;
2394 old_frag_threshold = rdev->wiphy.frag_threshold;
2395 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2396 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2397
2398 if (changed & WIPHY_PARAM_RETRY_SHORT)
2399 rdev->wiphy.retry_short = retry_short;
2400 if (changed & WIPHY_PARAM_RETRY_LONG)
2401 rdev->wiphy.retry_long = retry_long;
2402 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2403 rdev->wiphy.frag_threshold = frag_threshold;
2404 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2405 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2406 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2407 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2408
e35e4d28 2409 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2410 if (result) {
2411 rdev->wiphy.retry_short = old_retry_short;
2412 rdev->wiphy.retry_long = old_retry_long;
2413 rdev->wiphy.frag_threshold = old_frag_threshold;
2414 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2415 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2416 return result;
b9a5f8ca
JM		 2417 }
2418 }
7f2b8562 2419 return 0;
55682965
JB		 2420}
2421
71bbc994
JB		 2422static inline u64 wdev_id(struct wireless_dev *wdev)
2423{
2424 return (u64)wdev->identifier |
f26cbf40 2425 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2426}
55682965 2427
683b6d3b 2428static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2429 const struct cfg80211_chan_def *chandef)
683b6d3b 2430{
601555cd
JB		 2431 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2432 return -EINVAL;
3d9d1d66 2433
683b6d3b
JB		 2434 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2435 chandef->chan->center_freq))
2436 return -ENOBUFS;
3d9d1d66
JB		 2437 switch (chandef->width) {
2438 case NL80211_CHAN_WIDTH_20_NOHT:
2439 case NL80211_CHAN_WIDTH_20:
2440 case NL80211_CHAN_WIDTH_40:
2441 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2442 cfg80211_get_chandef_type(chandef)))
2443 return -ENOBUFS;
2444 break;
2445 default:
2446 break;
2447 }
2448 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2449 return -ENOBUFS;
2450 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2451 return -ENOBUFS;
2452 if (chandef->center_freq2 &&
2453 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2454 return -ENOBUFS;
2455 return 0;
2456}
2457
15e47304 2458static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2459 struct cfg80211_registered_device *rdev,
8f894be2 2460 struct wireless_dev *wdev, bool removal)
55682965 2461{
72fb2abc 2462 struct net_device *dev = wdev->netdev;
8f894be2 2463 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2464 void *hdr;
2465
8f894be2
TB		 2466 if (removal)
2467 cmd = NL80211_CMD_DEL_INTERFACE;
2468
2469 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2470 if (!hdr)
2471 return -1;
2472
72fb2abc
JB		 2473 if (dev &&
2474 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2475 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2476 goto nla_put_failure;
2477
2478 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2479 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2dad624e
ND		 2480 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2481 NL80211_ATTR_PAD) ||
98104fde 2482 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2483 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2484 rdev->devlist_generation ^
2485 (cfg80211_rdev_list_generation << 2)))
2486 goto nla_put_failure;
f5ea9120 2487
5b7ccaf3 2488 if (rdev->ops->get_channel) {
683b6d3b
JB		 2489 int ret;
2490 struct cfg80211_chan_def chandef;
2491
2492 ret = rdev_get_channel(rdev, wdev, &chandef);
2493 if (ret == 0) {
2494 if (nl80211_send_chandef(msg, &chandef))
2495 goto nla_put_failure;
2496 }
d91df0e3
PF		 2497 }
2498
d55d0d59
RM		 2499 if (rdev->ops->get_tx_power) {
2500 int dbm, ret;
2501
2502 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2503 if (ret == 0 &&
2504 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2505 DBM_TO_MBM(dbm)))
2506 goto nla_put_failure;
2507 }
2508
b84e7a05
AQ		 2509 if (wdev->ssid_len) {
2510 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2511 goto nla_put_failure;
2512 }
2513
053c095a
JB		 2514 genlmsg_end(msg, hdr);
2515 return 0;
55682965
JB		 2516
2517 nla_put_failure:
bc3ed28c
TG		 2518 genlmsg_cancel(msg, hdr);
2519 return -EMSGSIZE;
55682965
JB		 2520}
2521
2522static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2523{
2524 int wp_idx = 0;
2525 int if_idx = 0;
2526 int wp_start = cb->args[0];
2527 int if_start = cb->args[1];
f5ea9120 2528 struct cfg80211_registered_device *rdev;
55682965
JB		 2529 struct wireless_dev *wdev;
2530
5fe231e8 2531 rtnl_lock();
f5ea9120
JB		 2532 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2533 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2534 continue;
bba95fef
JB		 2535 if (wp_idx < wp_start) {
2536 wp_idx++;
55682965 2537 continue;
bba95fef 2538 }
55682965
JB		 2539 if_idx = 0;
2540
53873f13 2541 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
bba95fef
JB		 2542 if (if_idx < if_start) {
2543 if_idx++;
55682965 2544 continue;
bba95fef 2545 }
15e47304 2546 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2547 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2548 rdev, wdev, false) < 0) {
bba95fef
JB		 2549 goto out;
2550 }
2551 if_idx++;
55682965 2552 }
bba95fef
JB		 2553
2554 wp_idx++;
55682965 2555 }
bba95fef 2556 out:
5fe231e8 2557 rtnl_unlock();
55682965
JB		 2558
2559 cb->args[0] = wp_idx;
2560 cb->args[1] = if_idx;
2561
2562 return skb->len;
2563}
2564
2565static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2566{
2567 struct sk_buff *msg;
1b8ec87a 2568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2569 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2570
fd2120ca 2571 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2572 if (!msg)
4c476991 2573 return -ENOMEM;
55682965 2574
15e47304 2575 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2576 rdev, wdev, false) < 0) {
4c476991
JB		 2577 nlmsg_free(msg);
2578 return -ENOBUFS;
2579 }
55682965 2580
134e6375 2581 return genlmsg_reply(msg, info);
55682965
JB		 2582}
2583
66f7ac50
MW		 2584static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2585 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2586 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2587 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2588 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2589 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2590 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2591};
2592
2593static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2594{
2595 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2596 int flag;
2597
2598 *mntrflags = 0;
2599
2600 if (!nla)
2601 return -EINVAL;
2602
2603 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2604 nla, mntr_flags_policy))
2605 return -EINVAL;
2606
2607 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2608 if (flags[flag])
2609 *mntrflags |= (1<<flag);
2610
2611 return 0;
2612}
2613
9bc383de 2614static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2615 struct net_device *netdev, u8 use_4addr,
2616 enum nl80211_iftype iftype)
9bc383de 2617{
ad4bb6f8 2618 if (!use_4addr) {
f350a0a8 2619 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2620 return -EBUSY;
9bc383de 2621 return 0;
ad4bb6f8 2622 }
9bc383de
JB		 2623
2624 switch (iftype) {
2625 case NL80211_IFTYPE_AP_VLAN:
2626 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2627 return 0;
2628 break;
2629 case NL80211_IFTYPE_STATION:
2630 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2631 return 0;
2632 break;
2633 default:
2634 break;
2635 }
2636
2637 return -EOPNOTSUPP;
2638}
2639
55682965
JB		 2640static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2641{
4c476991 2642 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2643 struct vif_params params;
e36d56b6 2644 int err;
04a773ad 2645 enum nl80211_iftype otype, ntype;
4c476991 2646 struct net_device *dev = info->user_ptr[1];
92ffe055 2647 u32 _flags, *flags = NULL;
ac7f9cfa 2648 bool change = false;
55682965 2649
2ec600d6
LCC		 2650 memset(&params, 0, sizeof(params));
2651
04a773ad 2652 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2653
723b038d 2654 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2655 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2656 if (otype != ntype)
ac7f9cfa 2657 change = true;
4c476991
JB		 2658 if (ntype > NL80211_IFTYPE_MAX)
2659 return -EINVAL;
723b038d
JB		 2660 }
2661
92ffe055 2662 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2663 struct wireless_dev *wdev = dev->ieee80211_ptr;
2664
4c476991
JB		 2665 if (ntype != NL80211_IFTYPE_MESH_POINT)
2666 return -EINVAL;
29cbe68c
JB		 2667 if (netif_running(dev))
2668 return -EBUSY;
2669
2670 wdev_lock(wdev);
2671 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2672 IEEE80211_MAX_MESH_ID_LEN);
2673 wdev->mesh_id_up_len =
2674 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2675 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2676 wdev->mesh_id_up_len);
2677 wdev_unlock(wdev);
2ec600d6
LCC		 2678 }
2679
8b787643
FF		 2680 if (info->attrs[NL80211_ATTR_4ADDR]) {
2681 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2682 change = true;
ad4bb6f8 2683 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2684 if (err)
4c476991 2685 return err;
8b787643
FF		 2686 } else {
2687 params.use_4addr = -1;
2688 }
2689
92ffe055 2690 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2691 if (ntype != NL80211_IFTYPE_MONITOR)
2692 return -EINVAL;
92ffe055
JB		 2693 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2694 &_flags);
ac7f9cfa 2695 if (err)
4c476991 2696 return err;
ac7f9cfa
JB		 2697
2698 flags = &_flags;
2699 change = true;
92ffe055 2700 }
3b85875a 2701
c6e6a0c8
AE		 2702 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2703 const u8 *mumimo_groups;
2704 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2705
2706 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2707 return -EOPNOTSUPP;
2708
2709 mumimo_groups =
2710 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2711
2712 /* bits 0 and 63 are reserved and must be zero */
2713 if ((mumimo_groups[0] & BIT(7)) ||
2714 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(0)))
2715 return -EINVAL;
2716
2717 memcpy(params.vht_mumimo_groups, mumimo_groups,
2718 VHT_MUMIMO_GROUPS_DATA_LEN);
2719 change = true;
2720 }
2721
2722 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2723 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2724
2725 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2726 return -EOPNOTSUPP;
2727
2728 nla_memcpy(params.macaddr,
2729 info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR],
2730 ETH_ALEN);
2731 change = true;
2732 }
2733
18003297 2734 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2735 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2736 return -EOPNOTSUPP;
2737
ac7f9cfa 2738 if (change)
3d54d255 2739 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2740 else
2741 err = 0;
60719ffd 2742
9bc383de
JB		 2743 if (!err && params.use_4addr != -1)
2744 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2745
55682965
JB		 2746 return err;
2747}
2748
2749static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2750{
4c476991 2751 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2752 struct vif_params params;
84efbb84 2753 struct wireless_dev *wdev;
896ff063 2754 struct sk_buff *msg;
55682965
JB		 2755 int err;
2756 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2757 u32 flags;
55682965 2758
78f22b6a
JB		 2759 /* to avoid failing a new interface creation due to pending removal */
2760 cfg80211_destroy_ifaces(rdev);
2761
2ec600d6
LCC		 2762 memset(&params, 0, sizeof(params));
2763
55682965
JB		 2764 if (!info->attrs[NL80211_ATTR_IFNAME])
2765 return -EINVAL;
2766
2767 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2768 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2769 if (type > NL80211_IFTYPE_MAX)
2770 return -EINVAL;
2771 }
2772
79c97e97 2773 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2774 !(rdev->wiphy.interface_modes & (1 << type)))
2775 return -EOPNOTSUPP;
55682965 2776
e8f479b1
BG		 2777 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2778 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2779 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2780 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2781 ETH_ALEN);
2782 if (!is_valid_ether_addr(params.macaddr))
2783 return -EADDRNOTAVAIL;
2784 }
2785
9bc383de 2786 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2787 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2788 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2789 if (err)
4c476991 2790 return err;
9bc383de 2791 }
8b787643 2792
66f7ac50
MW		 2793 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2794 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2795 &flags);
e057d3c3 2796
18003297 2797 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2798 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2799 return -EOPNOTSUPP;
2800
a18c7192
JB		 2801 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2802 if (!msg)
2803 return -ENOMEM;
2804
e35e4d28
HG		 2805 wdev = rdev_add_virtual_intf(rdev,
2806 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2807 NET_NAME_USER, type, err ? NULL : &flags,
2808 &params);
d687cbb7
RM		 2809 if (WARN_ON(!wdev)) {
2810 nlmsg_free(msg);
2811 return -EPROTO;
2812 } else if (IS_ERR(wdev)) {
1c90f9d4 2813 nlmsg_free(msg);
84efbb84 2814 return PTR_ERR(wdev);
1c90f9d4 2815 }
2ec600d6 2816
18e5ca65 2817 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2818 wdev->owner_nlportid = info->snd_portid;
2819
98104fde
JB		 2820 switch (type) {
2821 case NL80211_IFTYPE_MESH_POINT:
2822 if (!info->attrs[NL80211_ATTR_MESH_ID])
2823 break;
29cbe68c
JB		 2824 wdev_lock(wdev);
2825 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2826 IEEE80211_MAX_MESH_ID_LEN);
2827 wdev->mesh_id_up_len =
2828 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2829 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2830 wdev->mesh_id_up_len);
2831 wdev_unlock(wdev);
98104fde
JB		 2832 break;
2833 case NL80211_IFTYPE_P2P_DEVICE:
2834 /*
2835 * P2P Device doesn't have a netdev, so doesn't go
2836 * through the netdev notifier and must be added here
2837 */
2838 mutex_init(&wdev->mtx);
2839 INIT_LIST_HEAD(&wdev->event_list);
2840 spin_lock_init(&wdev->event_lock);
2841 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2842 spin_lock_init(&wdev->mgmt_registrations_lock);
2843
98104fde 2844 wdev->identifier = ++rdev->wdev_id;
53873f13 2845 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
98104fde 2846 rdev->devlist_generation++;
98104fde
JB		 2847 break;
2848 default:
2849 break;
29cbe68c
JB		 2850 }
2851
15e47304 2852 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2853 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2854 nlmsg_free(msg);
2855 return -ENOBUFS;
2856 }
2857
896ff063
DK		 2858 /*
2859 * For wdevs which have no associated netdev object (e.g. of type
2860 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
2861 * For all other types, the event will be generated from the
2862 * netdev notifier
2863 */
2864 if (!wdev->netdev)
2865 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
8f894be2 2866
1c90f9d4 2867 return genlmsg_reply(msg, info);
55682965
JB		 2868}
2869
2870static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2871{
4c476991 2872 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2873 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2874 struct sk_buff *msg;
2875 int status;
55682965 2876
4c476991
JB		 2877 if (!rdev->ops->del_virtual_intf)
2878 return -EOPNOTSUPP;
55682965 2879
8f894be2
TB		 2880 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2881 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2882 nlmsg_free(msg);
2883 msg = NULL;
2884 }
2885
84efbb84
JB		 2886 /*
2887 * If we remove a wireless device without a netdev then clear
2888 * user_ptr[1] so that nl80211_post_doit won't dereference it
2889 * to check if it needs to do dev_put(). Otherwise it crashes
2890 * since the wdev has been freed, unlike with a netdev where
2891 * we need the dev_put() for the netdev to really be freed.
2892 */
2893 if (!wdev->netdev)
2894 info->user_ptr[1] = NULL;
2895
8f894be2
TB		 2896 status = rdev_del_virtual_intf(rdev, wdev);
2897 if (status >= 0 && msg)
2898 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2899 msg, 0, NL80211_MCGRP_CONFIG,
2900 GFP_KERNEL);
2901 else
2902 nlmsg_free(msg);
2903
2904 return status;
55682965
JB		 2905}
2906
1d9d9213
SW		 2907static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2908{
2909 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2910 struct net_device *dev = info->user_ptr[1];
2911 u16 noack_map;
2912
2913 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2914 return -EINVAL;
2915
2916 if (!rdev->ops->set_noack_map)
2917 return -EOPNOTSUPP;
2918
2919 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2920
e35e4d28 2921 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2922}
2923
41ade00f
JB		 2924struct get_key_cookie {
2925 struct sk_buff *msg;
2926 int error;
b9454e83 2927 int idx;
41ade00f
JB		 2928};
2929
2930static void get_key_callback(void *c, struct key_params *params)
2931{
b9454e83 2932 struct nlattr *key;
41ade00f
JB		 2933 struct get_key_cookie *cookie = c;
2934
9360ffd1
DM		 2935 if ((params->key &&
2936 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2937 params->key_len, params->key)) ||
2938 (params->seq &&
2939 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2940 params->seq_len, params->seq)) ||
2941 (params->cipher &&
2942 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2943 params->cipher)))
2944 goto nla_put_failure;
41ade00f 2945
b9454e83
JB		 2946 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2947 if (!key)
2948 goto nla_put_failure;
2949
9360ffd1
DM		 2950 if ((params->key &&
2951 nla_put(cookie->msg, NL80211_KEY_DATA,
2952 params->key_len, params->key)) ||
2953 (params->seq &&
2954 nla_put(cookie->msg, NL80211_KEY_SEQ,
2955 params->seq_len, params->seq)) ||
2956 (params->cipher &&
2957 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2958 params->cipher)))
2959 goto nla_put_failure;
b9454e83 2960
9360ffd1
DM		 2961 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2962 goto nla_put_failure;
b9454e83
JB		 2963
2964 nla_nest_end(cookie->msg, key);
2965
41ade00f
JB		 2966 return;
2967 nla_put_failure:
2968 cookie->error = 1;
2969}
2970
2971static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2972{
4c476991 2973 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2974 int err;
4c476991 2975 struct net_device *dev = info->user_ptr[1];
41ade00f 2976 u8 key_idx = 0;
e31b8213
JB		 2977 const u8 *mac_addr = NULL;
2978 bool pairwise;
41ade00f
JB		 2979 struct get_key_cookie cookie = {
2980 .error = 0,
2981 };
2982 void *hdr;
2983 struct sk_buff *msg;
2984
2985 if (info->attrs[NL80211_ATTR_KEY_IDX])
2986 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2987
3cfcf6ac 2988 if (key_idx > 5)
41ade00f
JB		 2989 return -EINVAL;
2990
2991 if (info->attrs[NL80211_ATTR_MAC])
2992 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2993
e31b8213
JB		 2994 pairwise = !!mac_addr;
2995 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2996 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
7a087e74 2997
e31b8213
JB		 2998 if (kt >= NUM_NL80211_KEYTYPES)
2999 return -EINVAL;
3000 if (kt != NL80211_KEYTYPE_GROUP &&
3001 kt != NL80211_KEYTYPE_PAIRWISE)
3002 return -EINVAL;
3003 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3004 }
3005
4c476991
JB		 3006 if (!rdev->ops->get_key)
3007 return -EOPNOTSUPP;
41ade00f 3008
0fa7b391
JB		 3009 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3010 return -ENOENT;
3011
fd2120ca 3012 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3013 if (!msg)
3014 return -ENOMEM;
41ade00f 3015
15e47304 3016 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 3017 NL80211_CMD_NEW_KEY);
cb35fba3 3018 if (!hdr)
9fe271af 3019 goto nla_put_failure;
41ade00f
JB		 3020
3021 cookie.msg = msg;
b9454e83 3022 cookie.idx = key_idx;
41ade00f 3023
9360ffd1
DM		 3024 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3025 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3026 goto nla_put_failure;
3027 if (mac_addr &&
3028 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3029 goto nla_put_failure;
41ade00f 3030
e35e4d28
HG		 3031 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3032 get_key_callback);
41ade00f
JB		 3033
3034 if (err)
6c95e2a2 3035 goto free_msg;
41ade00f
JB		 3036
3037 if (cookie.error)
3038 goto nla_put_failure;
3039
3040 genlmsg_end(msg, hdr);
4c476991 3041 return genlmsg_reply(msg, info);
41ade00f
JB		 3042
3043 nla_put_failure:
3044 err = -ENOBUFS;
6c95e2a2 3045 free_msg:
41ade00f 3046 nlmsg_free(msg);
41ade00f
JB		 3047 return err;
3048}
3049
3050static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3051{
4c476991 3052 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 3053 struct key_parse key;
41ade00f 3054 int err;
4c476991 3055 struct net_device *dev = info->user_ptr[1];
41ade00f 3056
b9454e83
JB		 3057 err = nl80211_parse_key(info, &key);
3058 if (err)
3059 return err;
41ade00f 3060
b9454e83 3061 if (key.idx < 0)
41ade00f
JB		 3062 return -EINVAL;
3063
b9454e83
JB		 3064 /* only support setting default key */
3065 if (!key.def && !key.defmgmt)
41ade00f
JB		 3066 return -EINVAL;
3067
dbd2fd65 3068 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 3069
dbd2fd65
JB		 3070 if (key.def) {
3071 if (!rdev->ops->set_default_key) {
3072 err = -EOPNOTSUPP;
3073 goto out;
3074 }
41ade00f 3075
dbd2fd65
JB		 3076 err = nl80211_key_allowed(dev->ieee80211_ptr);
3077 if (err)
3078 goto out;
3079
e35e4d28 3080 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 3081 key.def_uni, key.def_multi);
3082
3083 if (err)
3084 goto out;
fffd0934 3085
3d23e349 3086#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 3087 dev->ieee80211_ptr->wext.default_key = key.idx;
3088#endif
3089 } else {
3090 if (key.def_uni || !key.def_multi) {
3091 err = -EINVAL;
3092 goto out;
3093 }
3094
3095 if (!rdev->ops->set_default_mgmt_key) {
3096 err = -EOPNOTSUPP;
3097 goto out;
3098 }
3099
3100 err = nl80211_key_allowed(dev->ieee80211_ptr);
3101 if (err)
3102 goto out;
3103
e35e4d28 3104 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 3105 if (err)
3106 goto out;
3107
3108#ifdef CONFIG_CFG80211_WEXT
3109 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3110#endif
dbd2fd65
JB		 3111 }
3112
3113 out:
fffd0934 3114 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3115
41ade00f
JB		 3116 return err;
3117}
3118
3119static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3120{
4c476991 3121 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3122 int err;
4c476991 3123 struct net_device *dev = info->user_ptr[1];
b9454e83 3124 struct key_parse key;
e31b8213 3125 const u8 *mac_addr = NULL;
41ade00f 3126
b9454e83
JB		 3127 err = nl80211_parse_key(info, &key);
3128 if (err)
3129 return err;
41ade00f 3130
b9454e83 3131 if (!key.p.key)
41ade00f
JB		 3132 return -EINVAL;
3133
41ade00f
JB		 3134 if (info->attrs[NL80211_ATTR_MAC])
3135 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3136
e31b8213
JB		 3137 if (key.type == -1) {
3138 if (mac_addr)
3139 key.type = NL80211_KEYTYPE_PAIRWISE;
3140 else
3141 key.type = NL80211_KEYTYPE_GROUP;
3142 }
3143
3144 /* for now */
3145 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3146 key.type != NL80211_KEYTYPE_GROUP)
3147 return -EINVAL;
3148
4c476991
JB		 3149 if (!rdev->ops->add_key)
3150 return -EOPNOTSUPP;
25e47c18 3151
e31b8213
JB		 3152 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3153 key.type == NL80211_KEYTYPE_PAIRWISE,
3154 mac_addr))
4c476991 3155 return -EINVAL;
41ade00f 3156
fffd0934
JB		 3157 wdev_lock(dev->ieee80211_ptr);
3158 err = nl80211_key_allowed(dev->ieee80211_ptr);
3159 if (!err)
e35e4d28
HG		 3160 err = rdev_add_key(rdev, dev, key.idx,
3161 key.type == NL80211_KEYTYPE_PAIRWISE,
3162 mac_addr, &key.p);
fffd0934 3163 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3164
41ade00f
JB		 3165 return err;
3166}
3167
3168static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3169{
4c476991 3170 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3171 int err;
4c476991 3172 struct net_device *dev = info->user_ptr[1];
41ade00f 3173 u8 *mac_addr = NULL;
b9454e83 3174 struct key_parse key;
41ade00f 3175
b9454e83
JB		 3176 err = nl80211_parse_key(info, &key);
3177 if (err)
3178 return err;
41ade00f
JB		 3179
3180 if (info->attrs[NL80211_ATTR_MAC])
3181 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3182
e31b8213
JB		 3183 if (key.type == -1) {
3184 if (mac_addr)
3185 key.type = NL80211_KEYTYPE_PAIRWISE;
3186 else
3187 key.type = NL80211_KEYTYPE_GROUP;
3188 }
3189
3190 /* for now */
3191 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3192 key.type != NL80211_KEYTYPE_GROUP)
3193 return -EINVAL;
3194
4c476991
JB		 3195 if (!rdev->ops->del_key)
3196 return -EOPNOTSUPP;
41ade00f 3197
fffd0934
JB		 3198 wdev_lock(dev->ieee80211_ptr);
3199 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3200
0fa7b391 3201 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3202 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3203 err = -ENOENT;
3204
fffd0934 3205 if (!err)
e35e4d28
HG		 3206 err = rdev_del_key(rdev, dev, key.idx,
3207 key.type == NL80211_KEYTYPE_PAIRWISE,
3208 mac_addr);
41ade00f 3209
3d23e349 3210#ifdef CONFIG_CFG80211_WEXT
08645126 3211 if (!err) {
b9454e83 3212 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3213 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3214 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3215 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3216 }
3217#endif
fffd0934 3218 wdev_unlock(dev->ieee80211_ptr);
08645126 3219
41ade00f
JB		 3220 return err;
3221}
3222
77765eaf
VT		 3223/* This function returns an error or the number of nested attributes */
3224static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3225{
3226 struct nlattr *attr;
3227 int n_entries = 0, tmp;
3228
3229 nla_for_each_nested(attr, nl_attr, tmp) {
3230 if (nla_len(attr) != ETH_ALEN)
3231 return -EINVAL;
3232
3233 n_entries++;
3234 }
3235
3236 return n_entries;
3237}
3238
3239/*
3240 * This function parses ACL information and allocates memory for ACL data.
3241 * On successful return, the calling function is responsible to free the
3242 * ACL buffer returned by this function.
3243 */
3244static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3245 struct genl_info *info)
3246{
3247 enum nl80211_acl_policy acl_policy;
3248 struct nlattr *attr;
3249 struct cfg80211_acl_data *acl;
3250 int i = 0, n_entries, tmp;
3251
3252 if (!wiphy->max_acl_mac_addrs)
3253 return ERR_PTR(-EOPNOTSUPP);
3254
3255 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3256 return ERR_PTR(-EINVAL);
3257
3258 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3259 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3260 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3261 return ERR_PTR(-EINVAL);
3262
3263 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3264 return ERR_PTR(-EINVAL);
3265
3266 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3267 if (n_entries < 0)
3268 return ERR_PTR(n_entries);
3269
3270 if (n_entries > wiphy->max_acl_mac_addrs)
3271 return ERR_PTR(-ENOTSUPP);
3272
3273 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3274 GFP_KERNEL);
3275 if (!acl)
3276 return ERR_PTR(-ENOMEM);
3277
3278 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3279 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3280 i++;
3281 }
3282
3283 acl->n_acl_entries = n_entries;
3284 acl->acl_policy = acl_policy;
3285
3286 return acl;
3287}
3288
3289static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3290{
3291 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3292 struct net_device *dev = info->user_ptr[1];
3293 struct cfg80211_acl_data *acl;
3294 int err;
3295
3296 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3297 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3298 return -EOPNOTSUPP;
3299
3300 if (!dev->ieee80211_ptr->beacon_interval)
3301 return -EINVAL;
3302
3303 acl = parse_acl_data(&rdev->wiphy, info);
3304 if (IS_ERR(acl))
3305 return PTR_ERR(acl);
3306
3307 err = rdev_set_mac_acl(rdev, dev, acl);
3308
3309 kfree(acl);
3310
3311 return err;
3312}
3313
a1193be8 3314static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3315 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3316{
8860020e 3317 bool haveinfo = false;
ed1b6cc7 3318
a1193be8
SW		 3319 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3320 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3321 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3322 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3323 return -EINVAL;
3324
8860020e 3325 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3326
a1193be8
SW		 3327 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3328 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3329 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3330 if (!bcn->head_len)
3331 return -EINVAL;
3332 haveinfo = true;
ed1b6cc7
JB		 3333 }
3334
a1193be8
SW		 3335 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3336 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3337 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3338 haveinfo = true;
ed1b6cc7
JB		 3339 }
3340
4c476991
JB		 3341 if (!haveinfo)
3342 return -EINVAL;
3b85875a 3343
a1193be8
SW		 3344 if (attrs[NL80211_ATTR_IE]) {
3345 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3346 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3347 }
3348
a1193be8 3349 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3350 bcn->proberesp_ies =
a1193be8 3351 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3352 bcn->proberesp_ies_len =
a1193be8 3353 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3354 }
3355
a1193be8 3356 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3357 bcn->assocresp_ies =
a1193be8 3358 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3359 bcn->assocresp_ies_len =
a1193be8 3360 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3361 }
3362
a1193be8
SW		 3363 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3364 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3365 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3366 }
3367
8860020e
JB		 3368 return 0;
3369}
3370
46c1dd0c
FF		 3371static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3372 struct cfg80211_ap_settings *params)
3373{
3374 struct wireless_dev *wdev;
3375 bool ret = false;
3376
53873f13 3377 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
46c1dd0c
FF		 3378 if (wdev->iftype != NL80211_IFTYPE_AP &&
3379 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3380 continue;
3381
683b6d3b 3382 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3383 continue;
3384
683b6d3b 3385 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3386 ret = true;
3387 break;
3388 }
3389
46c1dd0c
FF		 3390 return ret;
3391}
3392
e39e5b5e
JM		 3393static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3394 enum nl80211_auth_type auth_type,
3395 enum nl80211_commands cmd)
3396{
3397 if (auth_type > NL80211_AUTHTYPE_MAX)
3398 return false;
3399
3400 switch (cmd) {
3401 case NL80211_CMD_AUTHENTICATE:
3402 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3403 auth_type == NL80211_AUTHTYPE_SAE)
3404 return false;
3405 return true;
3406 case NL80211_CMD_CONNECT:
3407 case NL80211_CMD_START_AP:
3408 /* SAE not supported yet */
3409 if (auth_type == NL80211_AUTHTYPE_SAE)
3410 return false;
3411 return true;
3412 default:
3413 return false;
3414 }
3415}
3416
8860020e
JB		 3417static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3418{
3419 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3420 struct net_device *dev = info->user_ptr[1];
3421 struct wireless_dev *wdev = dev->ieee80211_ptr;
3422 struct cfg80211_ap_settings params;
3423 int err;
3424
3425 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3426 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3427 return -EOPNOTSUPP;
3428
3429 if (!rdev->ops->start_ap)
3430 return -EOPNOTSUPP;
3431
3432 if (wdev->beacon_interval)
3433 return -EALREADY;
3434
3435 memset(&params, 0, sizeof(params));
3436
3437 /* these are required for START_AP */
3438 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3439 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3440 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3441 return -EINVAL;
3442
a1193be8 3443 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3444 if (err)
3445 return err;
3446
3447 params.beacon_interval =
3448 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3449 params.dtim_period =
3450 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3451
3452 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3453 if (err)
3454 return err;
3455
3456 /*
3457 * In theory, some of these attributes should be required here
3458 * but since they were not used when the command was originally
3459 * added, keep them optional for old user space programs to let
3460 * them continue to work with drivers that do not need the
3461 * additional information -- drivers must check!
3462 */
3463 if (info->attrs[NL80211_ATTR_SSID]) {
3464 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3465 params.ssid_len =
3466 nla_len(info->attrs[NL80211_ATTR_SSID]);
3467 if (params.ssid_len == 0 ||
3468 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3469 return -EINVAL;
3470 }
3471
3472 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3473 params.hidden_ssid = nla_get_u32(
3474 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3475 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3476 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3477 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3478 return -EINVAL;
3479 }
3480
3481 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3482
3483 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3484 params.auth_type = nla_get_u32(
3485 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3486 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3487 NL80211_CMD_START_AP))
8860020e
JB		 3488 return -EINVAL;
3489 } else
3490 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3491
3492 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3493 NL80211_MAX_NR_CIPHER_SUITES);
3494 if (err)
3495 return err;
3496
1b658f11
VT		 3497 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3498 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3499 return -EOPNOTSUPP;
3500 params.inactivity_timeout = nla_get_u16(
3501 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3502 }
3503
53cabad7
JB		 3504 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3505 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3506 return -EINVAL;
3507 params.p2p_ctwindow =
3508 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3509 if (params.p2p_ctwindow > 127)
3510 return -EINVAL;
3511 if (params.p2p_ctwindow != 0 &&
3512 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3513 return -EINVAL;
3514 }
3515
3516 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3517 u8 tmp;
3518
3519 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3520 return -EINVAL;
3521 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3522 if (tmp > 1)
3523 return -EINVAL;
3524 params.p2p_opp_ps = tmp;
3525 if (params.p2p_opp_ps != 0 &&
3526 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3527 return -EINVAL;
3528 }
3529
aa430da4 3530 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3531 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3532 if (err)
3533 return err;
3534 } else if (wdev->preset_chandef.chan) {
3535 params.chandef = wdev->preset_chandef;
46c1dd0c 3536 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3537 return -EINVAL;
3538
923b352f
AN		 3539 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3540 wdev->iftype))
aa430da4
JB		 3541 return -EINVAL;
3542
18998c38
EP		 3543 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3544 params.smps_mode =
3545 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3546 switch (params.smps_mode) {
3547 case NL80211_SMPS_OFF:
3548 break;
3549 case NL80211_SMPS_STATIC:
3550 if (!(rdev->wiphy.features &
3551 NL80211_FEATURE_STATIC_SMPS))
3552 return -EINVAL;
3553 break;
3554 case NL80211_SMPS_DYNAMIC:
3555 if (!(rdev->wiphy.features &
3556 NL80211_FEATURE_DYNAMIC_SMPS))
3557 return -EINVAL;
3558 break;
3559 default:
3560 return -EINVAL;
3561 }
3562 } else {
3563 params.smps_mode = NL80211_SMPS_OFF;
3564 }
3565
6e8ef842
PK		 3566 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
3567 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
3568 return -EOPNOTSUPP;
3569
4baf6bea
OO		 3570 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3571 params.acl = parse_acl_data(&rdev->wiphy, info);
3572 if (IS_ERR(params.acl))
3573 return PTR_ERR(params.acl);
3574 }
3575
c56589ed 3576 wdev_lock(wdev);
e35e4d28 3577 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3578 if (!err) {
683b6d3b 3579 wdev->preset_chandef = params.chandef;
8860020e 3580 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3581 wdev->chandef = params.chandef;
06e191e2
AQ		 3582 wdev->ssid_len = params.ssid_len;
3583 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3584 }
c56589ed 3585 wdev_unlock(wdev);
77765eaf
VT		 3586
3587 kfree(params.acl);
3588
56d1893d 3589 return err;
ed1b6cc7
JB		 3590}
3591
8860020e
JB		 3592static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3593{
3594 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3595 struct net_device *dev = info->user_ptr[1];
3596 struct wireless_dev *wdev = dev->ieee80211_ptr;
3597 struct cfg80211_beacon_data params;
3598 int err;
3599
3600 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3601 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3602 return -EOPNOTSUPP;
3603
3604 if (!rdev->ops->change_beacon)
3605 return -EOPNOTSUPP;
3606
3607 if (!wdev->beacon_interval)
3608 return -EINVAL;
3609
a1193be8 3610 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3611 if (err)
3612 return err;
3613
c56589ed
SW		 3614 wdev_lock(wdev);
3615 err = rdev_change_beacon(rdev, dev, &params);
3616 wdev_unlock(wdev);
3617
3618 return err;
8860020e
JB		 3619}
3620
3621static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3622{
4c476991
JB		 3623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3624 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3625
7c8d5e03 3626 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3627}
3628
5727ef1b
JB		 3629static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3630 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3631 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3632 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3633 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3634 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3635 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3636};
3637
eccb8e8f 3638static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3639 enum nl80211_iftype iftype,
eccb8e8f 3640 struct station_parameters *params)
5727ef1b
JB		 3641{
3642 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3643 struct nlattr *nla;
5727ef1b
JB		 3644 int flag;
3645
eccb8e8f
JB		 3646 /*
3647 * Try parsing the new attribute first so userspace
3648 * can specify both for older kernels.
3649 */
3650 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3651 if (nla) {
3652 struct nl80211_sta_flag_update *sta_flags;
3653
3654 sta_flags = nla_data(nla);
3655 params->sta_flags_mask = sta_flags->mask;
3656 params->sta_flags_set = sta_flags->set;
77ee7c89 3657 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3658 if ((params->sta_flags_mask |
3659 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3660 return -EINVAL;
3661 return 0;
3662 }
3663
3664 /* if present, parse the old attribute */
5727ef1b 3665
eccb8e8f 3666 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3667 if (!nla)
3668 return 0;
3669
3670 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3671 nla, sta_flags_policy))
3672 return -EINVAL;
3673
bdd3ae3d
JB		 3674 /*
3675 * Only allow certain flags for interface types so that
3676 * other attributes are silently ignored. Remember that
3677 * this is backward compatibility code with old userspace
3678 * and shouldn't be hit in other cases anyway.
3679 */
3680 switch (iftype) {
3681 case NL80211_IFTYPE_AP:
3682 case NL80211_IFTYPE_AP_VLAN:
3683 case NL80211_IFTYPE_P2P_GO:
3684 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3685 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3686 BIT(NL80211_STA_FLAG_WME) |
3687 BIT(NL80211_STA_FLAG_MFP);
3688 break;
3689 case NL80211_IFTYPE_P2P_CLIENT:
3690 case NL80211_IFTYPE_STATION:
3691 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3692 BIT(NL80211_STA_FLAG_TDLS_PEER);
3693 break;
3694 case NL80211_IFTYPE_MESH_POINT:
3695 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3696 BIT(NL80211_STA_FLAG_MFP) |
3697 BIT(NL80211_STA_FLAG_AUTHORIZED);
3698 default:
3699 return -EINVAL;
3700 }
5727ef1b 3701
3383b5a6
JB		 3702 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3703 if (flags[flag]) {
eccb8e8f 3704 params->sta_flags_set |= (1<<flag);
5727ef1b 3705
3383b5a6
JB		 3706 /* no longer support new API additions in old API */
3707 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3708 return -EINVAL;
3709 }
3710 }
3711
5727ef1b
JB		 3712 return 0;
3713}
3714
c8dcfd8a
FF		 3715static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3716 int attr)
3717{
3718 struct nlattr *rate;
8eb41c8d
VK		 3719 u32 bitrate;
3720 u16 bitrate_compat;
b51f3bee 3721 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 3722
3723 rate = nla_nest_start(msg, attr);
3724 if (!rate)
db9c64cf 3725 return false;
c8dcfd8a
FF		 3726
3727 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3728 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3729 /* report 16-bit bitrate only if we can */
3730 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3731 if (bitrate > 0 &&
3732 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3733 return false;
3734 if (bitrate_compat > 0 &&
3735 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3736 return false;
3737
b51f3bee
JB		 3738 switch (info->bw) {
3739 case RATE_INFO_BW_5:
3740 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3741 break;
3742 case RATE_INFO_BW_10:
3743 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3744 break;
3745 default:
3746 WARN_ON(1);
3747 /* fall through */
3748 case RATE_INFO_BW_20:
3749 rate_flg = 0;
3750 break;
3751 case RATE_INFO_BW_40:
3752 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3753 break;
3754 case RATE_INFO_BW_80:
3755 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3756 break;
3757 case RATE_INFO_BW_160:
3758 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3759 break;
3760 }
3761
3762 if (rate_flg && nla_put_flag(msg, rate_flg))
3763 return false;
3764
db9c64cf
JB		 3765 if (info->flags & RATE_INFO_FLAGS_MCS) {
3766 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3767 return false;
db9c64cf
JB		 3768 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3769 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3770 return false;
3771 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3772 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3773 return false;
3774 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3775 return false;
db9c64cf
JB		 3776 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3777 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3778 return false;
3779 }
c8dcfd8a
FF		 3780
3781 nla_nest_end(msg, rate);
3782 return true;
c8dcfd8a
FF		 3783}
3784
119363c7
FF		 3785static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3786 int id)
3787{
3788 void *attr;
3789 int i = 0;
3790
3791 if (!mask)
3792 return true;
3793
3794 attr = nla_nest_start(msg, id);
3795 if (!attr)
3796 return false;
3797
3798 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3799 if (!(mask & BIT(i)))
3800 continue;
3801
3802 if (nla_put_u8(msg, i, signal[i]))
3803 return false;
3804 }
3805
3806 nla_nest_end(msg, attr);
3807
3808 return true;
3809}
3810
cf5ead82
JB		 3811static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3812 u32 seq, int flags,
66266b3a
JL		 3813 struct cfg80211_registered_device *rdev,
3814 struct net_device *dev,
98b62183 3815 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3816{
3817 void *hdr;
f4263c98 3818 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3819
cf5ead82 3820 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 3821 if (!hdr)
3822 return -1;
3823
9360ffd1
DM		 3824 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3825 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3826 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3827 goto nla_put_failure;
f5ea9120 3828
2ec600d6
LCC		 3829 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3830 if (!sinfoattr)
fd5b74dc 3831 goto nla_put_failure;
319090bf
JB		 3832
3833#define PUT_SINFO(attr, memb, type) do { \
d686b920 3834 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
739960f1 3835 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
319090bf
JB		 3836 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3837 sinfo->memb)) \
3838 goto nla_put_failure; \
3839 } while (0)
d686b920
JB		 3840#define PUT_SINFO_U64(attr, memb) do { \
3841 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
3842 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
3843 sinfo->memb, NL80211_STA_INFO_PAD)) \
3844 goto nla_put_failure; \
3845 } while (0)
319090bf
JB		 3846
3847 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3848 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3849
3850 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3851 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 3852 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3853 (u32)sinfo->rx_bytes))
9360ffd1 3854 goto nla_put_failure;
319090bf
JB		 3855
3856 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3857 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3858 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3859 (u32)sinfo->tx_bytes))
3860 goto nla_put_failure;
319090bf 3861
d686b920
JB		 3862 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
3863 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
319090bf
JB		 3864 PUT_SINFO(LLID, llid, u16);
3865 PUT_SINFO(PLID, plid, u16);
3866 PUT_SINFO(PLINK_STATE, plink_state, u8);
d686b920 3867 PUT_SINFO_U64(RX_DURATION, rx_duration);
319090bf 3868
66266b3a
JL		 3869 switch (rdev->wiphy.signal_type) {
3870 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 3871 PUT_SINFO(SIGNAL, signal, u8);
3872 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 3873 break;
3874 default:
3875 break;
3876 }
319090bf 3877 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 3878 if (!nl80211_put_signal(msg, sinfo->chains,
3879 sinfo->chain_signal,
3880 NL80211_STA_INFO_CHAIN_SIGNAL))
3881 goto nla_put_failure;
3882 }
319090bf 3883 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 3884 if (!nl80211_put_signal(msg, sinfo->chains,
3885 sinfo->chain_signal_avg,
3886 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3887 goto nla_put_failure;
3888 }
319090bf 3889 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 3890 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3891 NL80211_STA_INFO_TX_BITRATE))
3892 goto nla_put_failure;
3893 }
319090bf 3894 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 3895 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3896 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3897 goto nla_put_failure;
420e7fab 3898 }
319090bf
JB		 3899
3900 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3901 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3902 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3903 PUT_SINFO(TX_FAILED, tx_failed, u32);
3904 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3905 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3906 PUT_SINFO(LOCAL_PM, local_pm, u32);
3907 PUT_SINFO(PEER_PM, peer_pm, u32);
3908 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3909
3910 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 3911 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3912 if (!bss_param)
3913 goto nla_put_failure;
3914
9360ffd1
DM		 3915 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3916 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3917 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3918 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3919 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3920 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3921 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3922 sinfo->bss_param.dtim_period) ||
3923 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3924 sinfo->bss_param.beacon_interval))
3925 goto nla_put_failure;
f4263c98
PS		 3926
3927 nla_nest_end(msg, bss_param);
3928 }
319090bf 3929 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 3930 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3931 sizeof(struct nl80211_sta_flag_update),
3932 &sinfo->sta_flags))
3933 goto nla_put_failure;
319090bf 3934
d686b920
JB		 3935 PUT_SINFO_U64(T_OFFSET, t_offset);
3936 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
3937 PUT_SINFO_U64(BEACON_RX, rx_beacon);
a76b1942 3938 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 3939
3940#undef PUT_SINFO
d686b920 3941#undef PUT_SINFO_U64
6de39808
JB		 3942
3943 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3944 struct nlattr *tidsattr;
3945 int tid;
3946
3947 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3948 if (!tidsattr)
3949 goto nla_put_failure;
3950
3951 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3952 struct cfg80211_tid_stats *tidstats;
3953 struct nlattr *tidattr;
3954
3955 tidstats = &sinfo->pertid[tid];
3956
3957 if (!tidstats->filled)
3958 continue;
3959
3960 tidattr = nla_nest_start(msg, tid + 1);
3961 if (!tidattr)
3962 goto nla_put_failure;
3963
d686b920 3964#define PUT_TIDVAL_U64(attr, memb) do { \
6de39808 3965 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
d686b920
JB		 3966 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
3967 tidstats->memb, NL80211_TID_STATS_PAD)) \
6de39808
JB		 3968 goto nla_put_failure; \
3969 } while (0)
3970
d686b920
JB		 3971 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
3972 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
3973 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
3974 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
6de39808 3975
d686b920 3976#undef PUT_TIDVAL_U64
6de39808
JB		 3977 nla_nest_end(msg, tidattr);
3978 }
3979
3980 nla_nest_end(msg, tidsattr);
3981 }
3982
2ec600d6 3983 nla_nest_end(msg, sinfoattr);
fd5b74dc 3984
319090bf 3985 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 3986 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3987 sinfo->assoc_req_ies))
3988 goto nla_put_failure;
50d3dfb7 3989
053c095a
JB		 3990 genlmsg_end(msg, hdr);
3991 return 0;
fd5b74dc
JB		 3992
3993 nla_put_failure:
bc3ed28c
TG		 3994 genlmsg_cancel(msg, hdr);
3995 return -EMSGSIZE;
fd5b74dc
JB		 3996}
3997
2ec600d6 3998static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3999 struct netlink_callback *cb)
2ec600d6 4000{
2ec600d6 4001 struct station_info sinfo;
1b8ec87a 4002 struct cfg80211_registered_device *rdev;
97990a06 4003 struct wireless_dev *wdev;
2ec600d6 4004 u8 mac_addr[ETH_ALEN];
97990a06 4005 int sta_idx = cb->args[2];
2ec600d6 4006 int err;
2ec600d6 4007
1b8ec87a 4008 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4009 if (err)
4010 return err;
bba95fef 4011
97990a06
JB		 4012 if (!wdev->netdev) {
4013 err = -EINVAL;
4014 goto out_err;
4015 }
4016
1b8ec87a 4017 if (!rdev->ops->dump_station) {
eec60b03 4018 err = -EOPNOTSUPP;
bba95fef
JB		 4019 goto out_err;
4020 }
4021
bba95fef 4022 while (1) {
f612cedf 4023 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 4024 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 4025 mac_addr, &sinfo);
bba95fef
JB		 4026 if (err == -ENOENT)
4027 break;
4028 if (err)
3b85875a 4029 goto out_err;
bba95fef 4030
cf5ead82 4031 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 4032 NETLINK_CB(cb->skb).portid,
bba95fef 4033 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 4034 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 4035 &sinfo) < 0)
4036 goto out;
4037
4038 sta_idx++;
4039 }
4040
bba95fef 4041 out:
97990a06 4042 cb->args[2] = sta_idx;
bba95fef 4043 err = skb->len;
bba95fef 4044 out_err:
1b8ec87a 4045 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 4046
4047 return err;
2ec600d6 4048}
fd5b74dc 4049
5727ef1b
JB		 4050static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4051{
4c476991
JB		 4052 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4053 struct net_device *dev = info->user_ptr[1];
2ec600d6 4054 struct station_info sinfo;
fd5b74dc
JB		 4055 struct sk_buff *msg;
4056 u8 *mac_addr = NULL;
4c476991 4057 int err;
fd5b74dc 4058
2ec600d6 4059 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 4060
4061 if (!info->attrs[NL80211_ATTR_MAC])
4062 return -EINVAL;
4063
4064 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4065
4c476991
JB		 4066 if (!rdev->ops->get_station)
4067 return -EOPNOTSUPP;
3b85875a 4068
e35e4d28 4069 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 4070 if (err)
4c476991 4071 return err;
2ec600d6 4072
fd2120ca 4073 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 4074 if (!msg)
4c476991 4075 return -ENOMEM;
fd5b74dc 4076
cf5ead82
JB		 4077 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4078 info->snd_portid, info->snd_seq, 0,
66266b3a 4079 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 4080 nlmsg_free(msg);
4081 return -ENOBUFS;
4082 }
3b85875a 4083
4c476991 4084 return genlmsg_reply(msg, info);
5727ef1b
JB		 4085}
4086
77ee7c89
JB		 4087int cfg80211_check_station_change(struct wiphy *wiphy,
4088 struct station_parameters *params,
4089 enum cfg80211_station_type statype)
4090{
e4208427
AB		 4091 if (params->listen_interval != -1 &&
4092 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4093 return -EINVAL;
e4208427 4094
17b94247
AB		 4095 if (params->support_p2p_ps != -1 &&
4096 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4097 return -EINVAL;
4098
c72e1140 4099 if (params->aid &&
e4208427
AB		 4100 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4101 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4102 return -EINVAL;
4103
4104 /* When you run into this, adjust the code below for the new flag */
4105 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4106
4107 switch (statype) {
eef941e6
TP		 4108 case CFG80211_STA_MESH_PEER_KERNEL:
4109 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4110 /*
4111 * No ignoring the TDLS flag here -- the userspace mesh
4112 * code doesn't have the bug of including TDLS in the
4113 * mask everywhere.
4114 */
4115 if (params->sta_flags_mask &
4116 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4117 BIT(NL80211_STA_FLAG_MFP) |
4118 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4119 return -EINVAL;
4120 break;
4121 case CFG80211_STA_TDLS_PEER_SETUP:
4122 case CFG80211_STA_TDLS_PEER_ACTIVE:
4123 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4124 return -EINVAL;
4125 /* ignore since it can't change */
4126 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4127 break;
4128 default:
4129 /* disallow mesh-specific things */
4130 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4131 return -EINVAL;
4132 if (params->local_pm)
4133 return -EINVAL;
4134 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4135 return -EINVAL;
4136 }
4137
4138 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4139 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4140 /* TDLS can't be set, ... */
4141 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4142 return -EINVAL;
4143 /*
4144 * ... but don't bother the driver with it. This works around
4145 * a hostapd/wpa_supplicant issue -- it always includes the
4146 * TLDS_PEER flag in the mask even for AP mode.
4147 */
4148 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4149 }
4150
47edb11b
AB		 4151 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4152 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4153 /* reject other things that can't change */
4154 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4155 return -EINVAL;
4156 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4157 return -EINVAL;
4158 if (params->supported_rates)
4159 return -EINVAL;
4160 if (params->ext_capab || params->ht_capa || params->vht_capa)
4161 return -EINVAL;
4162 }
4163
47edb11b
AB		 4164 if (statype != CFG80211_STA_AP_CLIENT &&
4165 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4166 if (params->vlan)
4167 return -EINVAL;
4168 }
4169
4170 switch (statype) {
4171 case CFG80211_STA_AP_MLME_CLIENT:
4172 /* Use this only for authorizing/unauthorizing a station */
4173 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4174 return -EOPNOTSUPP;
4175 break;
4176 case CFG80211_STA_AP_CLIENT:
47edb11b 4177 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4178 /* accept only the listed bits */
4179 if (params->sta_flags_mask &
4180 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4181 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4182 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4183 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4184 BIT(NL80211_STA_FLAG_WME) |
4185 BIT(NL80211_STA_FLAG_MFP)))
4186 return -EINVAL;
4187
4188 /* but authenticated/associated only if driver handles it */
4189 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4190 params->sta_flags_mask &
4191 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4192 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4193 return -EINVAL;
4194 break;
4195 case CFG80211_STA_IBSS:
4196 case CFG80211_STA_AP_STA:
4197 /* reject any changes other than AUTHORIZED */
4198 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4199 return -EINVAL;
4200 break;
4201 case CFG80211_STA_TDLS_PEER_SETUP:
4202 /* reject any changes other than AUTHORIZED or WME */
4203 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4204 BIT(NL80211_STA_FLAG_WME)))
4205 return -EINVAL;
4206 /* force (at least) rates when authorizing */
4207 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4208 !params->supported_rates)
4209 return -EINVAL;
4210 break;
4211 case CFG80211_STA_TDLS_PEER_ACTIVE:
4212 /* reject any changes */
4213 return -EINVAL;
eef941e6 4214 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4215 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4216 return -EINVAL;
4217 break;
eef941e6 4218 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4219 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4220 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4221 return -EINVAL;
4222 break;
4223 }
4224
4225 return 0;
4226}
4227EXPORT_SYMBOL(cfg80211_check_station_change);
4228
5727ef1b 4229/*
c258d2de 4230 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4231 */
80b99899
JB		 4232static struct net_device *get_vlan(struct genl_info *info,
4233 struct cfg80211_registered_device *rdev)
5727ef1b 4234{
463d0183 4235 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4236 struct net_device *v;
4237 int ret;
4238
4239 if (!vlanattr)
4240 return NULL;
4241
4242 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4243 if (!v)
4244 return ERR_PTR(-ENODEV);
4245
4246 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4247 ret = -EINVAL;
4248 goto error;
5727ef1b 4249 }
80b99899 4250
77ee7c89
JB		 4251 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4252 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4253 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4254 ret = -EINVAL;
4255 goto error;
4256 }
4257
80b99899
JB		 4258 if (!netif_running(v)) {
4259 ret = -ENETDOWN;
4260 goto error;
4261 }
4262
4263 return v;
4264 error:
4265 dev_put(v);
4266 return ERR_PTR(ret);
5727ef1b
JB		 4267}
4268
94e860f1
JB		 4269static const struct nla_policy
4270nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4271 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4272 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4273};
4274
ff276691
JB		 4275static int nl80211_parse_sta_wme(struct genl_info *info,
4276 struct station_parameters *params)
df881293 4277{
df881293
JM		 4278 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4279 struct nlattr *nla;
4280 int err;
4281
df881293
JM		 4282 /* parse WME attributes if present */
4283 if (!info->attrs[NL80211_ATTR_STA_WME])
4284 return 0;
4285
4286 nla = info->attrs[NL80211_ATTR_STA_WME];
4287 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4288 nl80211_sta_wme_policy);
4289 if (err)
4290 return err;
4291
4292 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4293 params->uapsd_queues = nla_get_u8(
4294 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4295 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4296 return -EINVAL;
4297
4298 if (tb[NL80211_STA_WME_MAX_SP])
4299 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4300
4301 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4302 return -EINVAL;
4303
4304 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4305
4306 return 0;
4307}
4308
c01fc9ad
SD		 4309static int nl80211_parse_sta_channel_info(struct genl_info *info,
4310 struct station_parameters *params)
4311{
4312 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4313 params->supported_channels =
4314 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4315 params->supported_channels_len =
4316 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4317 /*
4318 * Need to include at least one (first channel, number of
4319 * channels) tuple for each subband, and must have proper
4320 * tuples for the rest of the data as well.
4321 */
4322 if (params->supported_channels_len < 2)
4323 return -EINVAL;
4324 if (params->supported_channels_len % 2)
4325 return -EINVAL;
4326 }
4327
4328 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4329 params->supported_oper_classes =
4330 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4331 params->supported_oper_classes_len =
4332 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4333 /*
4334 * The value of the Length field of the Supported Operating
4335 * Classes element is between 2 and 253.
4336 */
4337 if (params->supported_oper_classes_len < 2 ||
4338 params->supported_oper_classes_len > 253)
4339 return -EINVAL;
4340 }
4341 return 0;
4342}
4343
ff276691
JB		 4344static int nl80211_set_station_tdls(struct genl_info *info,
4345 struct station_parameters *params)
4346{
c01fc9ad 4347 int err;
ff276691 4348 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4349 if (info->attrs[NL80211_ATTR_PEER_AID])
4350 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4351 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4352 params->ht_capa =
4353 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4354 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4355 params->vht_capa =
4356 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4357
c01fc9ad
SD		 4358 err = nl80211_parse_sta_channel_info(info, params);
4359 if (err)
4360 return err;
4361
ff276691
JB		 4362 return nl80211_parse_sta_wme(info, params);
4363}
4364
5727ef1b
JB		 4365static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4366{
4c476991 4367 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4368 struct net_device *dev = info->user_ptr[1];
5727ef1b 4369 struct station_parameters params;
77ee7c89
JB		 4370 u8 *mac_addr;
4371 int err;
5727ef1b
JB		 4372
4373 memset(&params, 0, sizeof(params));
4374
77ee7c89
JB		 4375 if (!rdev->ops->change_station)
4376 return -EOPNOTSUPP;
4377
e4208427
AB		 4378 /*
4379 * AID and listen_interval properties can be set only for unassociated
4380 * station. Include these parameters here and will check them in
4381 * cfg80211_check_station_change().
4382 */
a9bc31e4
AB		 4383 if (info->attrs[NL80211_ATTR_STA_AID])
4384 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4385
4386 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4387 params.listen_interval =
4388 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4389 else
4390 params.listen_interval = -1;
5727ef1b 4391
17b94247
AB		 4392 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4393 u8 tmp;
4394
4395 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4396 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4397 return -EINVAL;
4398
4399 params.support_p2p_ps = tmp;
4400 } else {
4401 params.support_p2p_ps = -1;
4402 }
4403
5727ef1b
JB		 4404 if (!info->attrs[NL80211_ATTR_MAC])
4405 return -EINVAL;
4406
4407 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4408
4409 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4410 params.supported_rates =
4411 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4412 params.supported_rates_len =
4413 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4414 }
4415
9d62a986
JM		 4416 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4417 params.capability =
4418 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4419 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4420 }
4421
4422 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4423 params.ext_capab =
4424 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4425 params.ext_capab_len =
4426 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4427 }
4428
bdd3ae3d 4429 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4430 return -EINVAL;
4431
f8bacc21 4432 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4433 params.plink_action =
f8bacc21
JB		 4434 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4435 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4436 return -EINVAL;
4437 }
2ec600d6 4438
f8bacc21 4439 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4440 params.plink_state =
f8bacc21
JB		 4441 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4442 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4443 return -EINVAL;
7d27a0ba
MH		 4444 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4445 params.peer_aid = nla_get_u16(
4446 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4447 if (params.peer_aid > IEEE80211_MAX_AID)
4448 return -EINVAL;
4449 }
f8bacc21
JB		 4450 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4451 }
9c3990aa 4452
3b1c5a53
MP		 4453 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4454 enum nl80211_mesh_power_mode pm = nla_get_u32(
4455 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4456
4457 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4458 pm > NL80211_MESH_POWER_MAX)
4459 return -EINVAL;
4460
4461 params.local_pm = pm;
4462 }
4463
77ee7c89
JB		 4464 /* Include parameters for TDLS peer (will check later) */
4465 err = nl80211_set_station_tdls(info, &params);
4466 if (err)
4467 return err;
4468
4469 params.vlan = get_vlan(info, rdev);
4470 if (IS_ERR(params.vlan))
4471 return PTR_ERR(params.vlan);
4472
a97f4424
JB		 4473 switch (dev->ieee80211_ptr->iftype) {
4474 case NL80211_IFTYPE_AP:
4475 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4476 case NL80211_IFTYPE_P2P_GO:
074ac8df 4477 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4478 case NL80211_IFTYPE_STATION:
267335d6 4479 case NL80211_IFTYPE_ADHOC:
a97f4424 4480 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4481 break;
4482 default:
77ee7c89
JB		 4483 err = -EOPNOTSUPP;
4484 goto out_put_vlan;
034d655e
JB		 4485 }
4486
77ee7c89 4487 /* driver will call cfg80211_check_station_change() */
e35e4d28 4488 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4489
77ee7c89 4490 out_put_vlan:
5727ef1b
JB		 4491 if (params.vlan)
4492 dev_put(params.vlan);
3b85875a 4493
5727ef1b
JB		 4494 return err;
4495}
4496
4497static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4498{
4c476991 4499 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4500 int err;
4c476991 4501 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4502 struct station_parameters params;
4503 u8 *mac_addr = NULL;
bda95eb1
JB		 4504 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4505 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 4506
4507 memset(&params, 0, sizeof(params));
4508
984c311b
JB		 4509 if (!rdev->ops->add_station)
4510 return -EOPNOTSUPP;
4511
5727ef1b
JB		 4512 if (!info->attrs[NL80211_ATTR_MAC])
4513 return -EINVAL;
4514
5727ef1b
JB		 4515 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4516 return -EINVAL;
4517
4518 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4519 return -EINVAL;
4520
5e4b6f56
JM		 4521 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4522 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4523 return -EINVAL;
4524
5727ef1b
JB		 4525 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4526 params.supported_rates =
4527 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4528 params.supported_rates_len =
4529 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4530 params.listen_interval =
4531 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4532
17b94247
AB		 4533 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4534 u8 tmp;
4535
4536 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4537 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4538 return -EINVAL;
4539
4540 params.support_p2p_ps = tmp;
4541 } else {
4542 /*
4543 * if not specified, assume it's supported for P2P GO interface,
4544 * and is NOT supported for AP interface
4545 */
4546 params.support_p2p_ps =
4547 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
4548 }
4549
3d124ea2 4550 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4551 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4552 else
4553 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4554 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4555 return -EINVAL;
51b50fbe 4556
9d62a986
JM		 4557 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4558 params.capability =
4559 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4560 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4561 }
4562
4563 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4564 params.ext_capab =
4565 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4566 params.ext_capab_len =
4567 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4568 }
4569
36aedc90
JM		 4570 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4571 params.ht_capa =
4572 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4573
f461be3e
MP		 4574 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4575 params.vht_capa =
4576 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4577
60f4a7b1
MK		 4578 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4579 params.opmode_notif_used = true;
4580 params.opmode_notif =
4581 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4582 }
4583
f8bacc21 4584 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4585 params.plink_action =
f8bacc21
JB		 4586 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4587 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4588 return -EINVAL;
4589 }
96b78dff 4590
c01fc9ad
SD		 4591 err = nl80211_parse_sta_channel_info(info, &params);
4592 if (err)
4593 return err;
4594
ff276691
JB		 4595 err = nl80211_parse_sta_wme(info, &params);
4596 if (err)
4597 return err;
bdd90d5e 4598
bdd3ae3d 4599 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4600 return -EINVAL;
4601
496fcc29
JB		 4602 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4603 * as userspace might just pass through the capabilities from the IEs
4604 * directly, rather than enforcing this restriction and returning an
4605 * error in this case.
4606 */
4607 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4608 params.ht_capa = NULL;
4609 params.vht_capa = NULL;
4610 }
4611
77ee7c89
JB		 4612 /* When you run into this, adjust the code below for the new flag */
4613 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4614
bdd90d5e
JB		 4615 switch (dev->ieee80211_ptr->iftype) {
4616 case NL80211_IFTYPE_AP:
4617 case NL80211_IFTYPE_AP_VLAN:
4618 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4619 /* ignore WME attributes if iface/sta is not capable */
4620 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4621 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4622 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4623
bdd90d5e 4624 /* TDLS peers cannot be added */
3d124ea2
JM		 4625 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4626 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4627 return -EINVAL;
bdd90d5e
JB		 4628 /* but don't bother the driver with it */
4629 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4630
d582cffb
JB		 4631 /* allow authenticated/associated only if driver handles it */
4632 if (!(rdev->wiphy.features &
4633 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 4634 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 4635 return -EINVAL;
4636
bda95eb1
JB		 4637 /* Older userspace, or userspace wanting to be compatible with
4638 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
4639 * and assoc flags in the mask, but assumes the station will be
4640 * added as associated anyway since this was the required driver
4641 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
4642 * introduced.
4643 * In order to not bother drivers with this quirk in the API
4644 * set the flags in both the mask and set for new stations in
4645 * this case.
4646 */
4647 if (!(params.sta_flags_mask & auth_assoc)) {
4648 params.sta_flags_mask |= auth_assoc;
4649 params.sta_flags_set |= auth_assoc;
4650 }
4651
bdd90d5e
JB		 4652 /* must be last in here for error handling */
4653 params.vlan = get_vlan(info, rdev);
4654 if (IS_ERR(params.vlan))
4655 return PTR_ERR(params.vlan);
4656 break;
4657 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4658 /* ignore uAPSD data */
4659 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4660
d582cffb
JB		 4661 /* associated is disallowed */
4662 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4663 return -EINVAL;
bdd90d5e 4664 /* TDLS peers cannot be added */
3d124ea2
JM		 4665 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4666 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4667 return -EINVAL;
4668 break;
4669 case NL80211_IFTYPE_STATION:
93d08f0b 4670 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4671 /* ignore uAPSD data */
4672 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4673
77ee7c89
JB		 4674 /* these are disallowed */
4675 if (params.sta_flags_mask &
4676 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4677 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4678 return -EINVAL;
bdd90d5e
JB		 4679 /* Only TDLS peers can be added */
4680 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4681 return -EINVAL;
4682 /* Can only add if TDLS ... */
4683 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4684 return -EOPNOTSUPP;
4685 /* ... with external setup is supported */
4686 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4687 return -EOPNOTSUPP;
77ee7c89
JB		 4688 /*
4689 * Older wpa_supplicant versions always mark the TDLS peer
4690 * as authorized, but it shouldn't yet be.
4691 */
4692 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4693 break;
4694 default:
4695 return -EOPNOTSUPP;
c75786c9
EP		 4696 }
4697
bdd90d5e 4698 /* be aware of params.vlan when changing code here */
5727ef1b 4699
e35e4d28 4700 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4701
5727ef1b
JB		 4702 if (params.vlan)
4703 dev_put(params.vlan);
5727ef1b
JB		 4704 return err;
4705}
4706
4707static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4708{
4c476991
JB		 4709 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4710 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4711 struct station_del_parameters params;
4712
4713 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4714
4715 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4716 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4717
e80cf853 4718 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4719 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4720 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4721 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4722 return -EINVAL;
5727ef1b 4723
4c476991
JB		 4724 if (!rdev->ops->del_station)
4725 return -EOPNOTSUPP;
3b85875a 4726
98856866
JM		 4727 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4728 params.subtype =
4729 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4730 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4731 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4732 return -EINVAL;
4733 } else {
4734 /* Default to Deauthentication frame */
4735 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4736 }
4737
4738 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4739 params.reason_code =
4740 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4741 if (params.reason_code == 0)
4742 return -EINVAL; /* 0 is reserved */
4743 } else {
4744 /* Default to reason code 2 */
4745 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4746 }
4747
89c771e5 4748 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4749}
4750
15e47304 4751static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4752 int flags, struct net_device *dev,
4753 u8 *dst, u8 *next_hop,
4754 struct mpath_info *pinfo)
4755{
4756 void *hdr;
4757 struct nlattr *pinfoattr;
4758
1ef4c850 4759 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4760 if (!hdr)
4761 return -1;
4762
9360ffd1
DM		 4763 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4764 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4765 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4766 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4767 goto nla_put_failure;
f5ea9120 4768
2ec600d6
LCC		 4769 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4770 if (!pinfoattr)
4771 goto nla_put_failure;
9360ffd1
DM		 4772 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4773 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4774 pinfo->frame_qlen))
4775 goto nla_put_failure;
4776 if (((pinfo->filled & MPATH_INFO_SN) &&
4777 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4778 ((pinfo->filled & MPATH_INFO_METRIC) &&
4779 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4780 pinfo->metric)) ||
4781 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4782 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4783 pinfo->exptime)) ||
4784 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4785 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4786 pinfo->flags)) ||
4787 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4788 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4789 pinfo->discovery_timeout)) ||
4790 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4791 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4792 pinfo->discovery_retries)))
4793 goto nla_put_failure;
2ec600d6
LCC		 4794
4795 nla_nest_end(msg, pinfoattr);
4796
053c095a
JB		 4797 genlmsg_end(msg, hdr);
4798 return 0;
2ec600d6
LCC		 4799
4800 nla_put_failure:
bc3ed28c
TG		 4801 genlmsg_cancel(msg, hdr);
4802 return -EMSGSIZE;
2ec600d6
LCC		 4803}
4804
4805static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4806 struct netlink_callback *cb)
2ec600d6 4807{
2ec600d6 4808 struct mpath_info pinfo;
1b8ec87a 4809 struct cfg80211_registered_device *rdev;
97990a06 4810 struct wireless_dev *wdev;
2ec600d6
LCC		 4811 u8 dst[ETH_ALEN];
4812 u8 next_hop[ETH_ALEN];
97990a06 4813 int path_idx = cb->args[2];
2ec600d6 4814 int err;
2ec600d6 4815
1b8ec87a 4816 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4817 if (err)
4818 return err;
bba95fef 4819
1b8ec87a 4820 if (!rdev->ops->dump_mpath) {
eec60b03 4821 err = -EOPNOTSUPP;
bba95fef
JB		 4822 goto out_err;
4823 }
4824
97990a06 4825 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4826 err = -EOPNOTSUPP;
0448b5fc 4827 goto out_err;
eec60b03
JM		 4828 }
4829
bba95fef 4830 while (1) {
1b8ec87a 4831 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4832 next_hop, &pinfo);
bba95fef 4833 if (err == -ENOENT)
2ec600d6 4834 break;
bba95fef 4835 if (err)
3b85875a 4836 goto out_err;
2ec600d6 4837
15e47304 4838 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4839 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4840 wdev->netdev, dst, next_hop,
bba95fef
JB		 4841 &pinfo) < 0)
4842 goto out;
2ec600d6 4843
bba95fef 4844 path_idx++;
2ec600d6 4845 }
2ec600d6 4846
bba95fef 4847 out:
97990a06 4848 cb->args[2] = path_idx;
bba95fef 4849 err = skb->len;
bba95fef 4850 out_err:
1b8ec87a 4851 nl80211_finish_wdev_dump(rdev);
bba95fef 4852 return err;
2ec600d6
LCC		 4853}
4854
4855static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4856{
4c476991 4857 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4858 int err;
4c476991 4859 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4860 struct mpath_info pinfo;
4861 struct sk_buff *msg;
4862 u8 *dst = NULL;
4863 u8 next_hop[ETH_ALEN];
4864
4865 memset(&pinfo, 0, sizeof(pinfo));
4866
4867 if (!info->attrs[NL80211_ATTR_MAC])
4868 return -EINVAL;
4869
4870 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4871
4c476991
JB		 4872 if (!rdev->ops->get_mpath)
4873 return -EOPNOTSUPP;
2ec600d6 4874
4c476991
JB		 4875 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4876 return -EOPNOTSUPP;
eec60b03 4877
e35e4d28 4878 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4879 if (err)
4c476991 4880 return err;
2ec600d6 4881
fd2120ca 4882 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4883 if (!msg)
4c476991 4884 return -ENOMEM;
2ec600d6 4885
15e47304 4886 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4887 dev, dst, next_hop, &pinfo) < 0) {
4888 nlmsg_free(msg);
4889 return -ENOBUFS;
4890 }
3b85875a 4891
4c476991 4892 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4893}
4894
4895static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4896{
4c476991
JB		 4897 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4898 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4899 u8 *dst = NULL;
4900 u8 *next_hop = NULL;
4901
4902 if (!info->attrs[NL80211_ATTR_MAC])
4903 return -EINVAL;
4904
4905 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4906 return -EINVAL;
4907
4908 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4909 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4910
4c476991
JB		 4911 if (!rdev->ops->change_mpath)
4912 return -EOPNOTSUPP;
35a8efe1 4913
4c476991
JB		 4914 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4915 return -EOPNOTSUPP;
2ec600d6 4916
e35e4d28 4917 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4918}
4c476991 4919
2ec600d6
LCC		 4920static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4921{
4c476991
JB		 4922 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4923 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4924 u8 *dst = NULL;
4925 u8 *next_hop = NULL;
4926
4927 if (!info->attrs[NL80211_ATTR_MAC])
4928 return -EINVAL;
4929
4930 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4931 return -EINVAL;
4932
4933 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4934 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4935
4c476991
JB		 4936 if (!rdev->ops->add_mpath)
4937 return -EOPNOTSUPP;
35a8efe1 4938
4c476991
JB		 4939 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4940 return -EOPNOTSUPP;
2ec600d6 4941
e35e4d28 4942 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4943}
4944
4945static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4946{
4c476991
JB		 4947 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4948 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4949 u8 *dst = NULL;
4950
4951 if (info->attrs[NL80211_ATTR_MAC])
4952 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4953
4c476991
JB		 4954 if (!rdev->ops->del_mpath)
4955 return -EOPNOTSUPP;
3b85875a 4956
e35e4d28 4957 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4958}
4959
66be7d2b
HR		 4960static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4961{
4962 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4963 int err;
4964 struct net_device *dev = info->user_ptr[1];
4965 struct mpath_info pinfo;
4966 struct sk_buff *msg;
4967 u8 *dst = NULL;
4968 u8 mpp[ETH_ALEN];
4969
4970 memset(&pinfo, 0, sizeof(pinfo));
4971
4972 if (!info->attrs[NL80211_ATTR_MAC])
4973 return -EINVAL;
4974
4975 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4976
4977 if (!rdev->ops->get_mpp)
4978 return -EOPNOTSUPP;
4979
4980 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4981 return -EOPNOTSUPP;
4982
4983 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4984 if (err)
4985 return err;
4986
4987 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4988 if (!msg)
4989 return -ENOMEM;
4990
4991 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4992 dev, dst, mpp, &pinfo) < 0) {
4993 nlmsg_free(msg);
4994 return -ENOBUFS;
4995 }
4996
4997 return genlmsg_reply(msg, info);
4998}
4999
5000static int nl80211_dump_mpp(struct sk_buff *skb,
5001 struct netlink_callback *cb)
5002{
5003 struct mpath_info pinfo;
5004 struct cfg80211_registered_device *rdev;
5005 struct wireless_dev *wdev;
5006 u8 dst[ETH_ALEN];
5007 u8 mpp[ETH_ALEN];
5008 int path_idx = cb->args[2];
5009 int err;
5010
5011 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5012 if (err)
5013 return err;
5014
5015 if (!rdev->ops->dump_mpp) {
5016 err = -EOPNOTSUPP;
5017 goto out_err;
5018 }
5019
5020 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5021 err = -EOPNOTSUPP;
5022 goto out_err;
5023 }
5024
5025 while (1) {
5026 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5027 mpp, &pinfo);
5028 if (err == -ENOENT)
5029 break;
5030 if (err)
5031 goto out_err;
5032
5033 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5034 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5035 wdev->netdev, dst, mpp,
5036 &pinfo) < 0)
5037 goto out;
5038
5039 path_idx++;
5040 }
5041
5042 out:
5043 cb->args[2] = path_idx;
5044 err = skb->len;
5045 out_err:
5046 nl80211_finish_wdev_dump(rdev);
5047 return err;
5048}
5049
9f1ba906
JM		 5050static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5051{
4c476991
JB		 5052 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5053 struct net_device *dev = info->user_ptr[1];
c56589ed 5054 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 5055 struct bss_parameters params;
c56589ed 5056 int err;
9f1ba906
JM		 5057
5058 memset(&params, 0, sizeof(params));
5059 /* default to not changing parameters */
5060 params.use_cts_prot = -1;
5061 params.use_short_preamble = -1;
5062 params.use_short_slot_time = -1;
fd8aaaf3 5063 params.ap_isolate = -1;
50b12f59 5064 params.ht_opmode = -1;
53cabad7
JB		 5065 params.p2p_ctwindow = -1;
5066 params.p2p_opp_ps = -1;
9f1ba906
JM		 5067
5068 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5069 params.use_cts_prot =
5070 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5071 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5072 params.use_short_preamble =
5073 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5074 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5075 params.use_short_slot_time =
5076 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 5077 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5078 params.basic_rates =
5079 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5080 params.basic_rates_len =
5081 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5082 }
fd8aaaf3
FF		 5083 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5084 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 5085 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5086 params.ht_opmode =
5087 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 5088
53cabad7
JB		 5089 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5090 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5091 return -EINVAL;
5092 params.p2p_ctwindow =
5093 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5094 if (params.p2p_ctwindow < 0)
5095 return -EINVAL;
5096 if (params.p2p_ctwindow != 0 &&
5097 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5098 return -EINVAL;
5099 }
5100
5101 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5102 u8 tmp;
5103
5104 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5105 return -EINVAL;
5106 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5107 if (tmp > 1)
5108 return -EINVAL;
5109 params.p2p_opp_ps = tmp;
5110 if (params.p2p_opp_ps &&
5111 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5112 return -EINVAL;
5113 }
5114
4c476991
JB		 5115 if (!rdev->ops->change_bss)
5116 return -EOPNOTSUPP;
9f1ba906 5117
074ac8df 5118 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5119 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5120 return -EOPNOTSUPP;
3b85875a 5121
c56589ed
SW		 5122 wdev_lock(wdev);
5123 err = rdev_change_bss(rdev, dev, &params);
5124 wdev_unlock(wdev);
5125
5126 return err;
9f1ba906
JM		 5127}
5128
b2e1b302
LR		 5129static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5130{
b2e1b302 5131 char *data = NULL;
05050753 5132 bool is_indoor;
57b5ce07 5133 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5134 u32 owner_nlportid;
5135
80778f18
LR		 5136 /*
5137 * You should only get this when cfg80211 hasn't yet initialized
5138 * completely when built-in to the kernel right between the time
5139 * window between nl80211_init() and regulatory_init(), if that is
5140 * even possible.
5141 */
458f4f9e 5142 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5143 return -EINPROGRESS;
80778f18 5144
57b5ce07
LR		 5145 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5146 user_reg_hint_type =
5147 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5148 else
5149 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5150
5151 switch (user_reg_hint_type) {
5152 case NL80211_USER_REG_HINT_USER:
5153 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5154 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5155 return -EINVAL;
5156
5157 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5158 return regulatory_hint_user(data, user_reg_hint_type);
5159 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5160 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5161 owner_nlportid = info->snd_portid;
5162 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5163 } else {
5164 owner_nlportid = 0;
5165 is_indoor = true;
5166 }
5167
5168 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5169 default:
5170 return -EINVAL;
5171 }
b2e1b302
LR		 5172}
5173
24bdd9f4 5174static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5175 struct genl_info *info)
93da9cc1 5176{
4c476991 5177 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5178 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5179 struct wireless_dev *wdev = dev->ieee80211_ptr;
5180 struct mesh_config cur_params;
5181 int err = 0;
93da9cc1 5182 void *hdr;
5183 struct nlattr *pinfoattr;
5184 struct sk_buff *msg;
5185
29cbe68c
JB		 5186 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5187 return -EOPNOTSUPP;
5188
24bdd9f4 5189 if (!rdev->ops->get_mesh_config)
4c476991 5190 return -EOPNOTSUPP;
f3f92586 5191
29cbe68c
JB		 5192 wdev_lock(wdev);
5193 /* If not connected, get default parameters */
5194 if (!wdev->mesh_id_len)
5195 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5196 else
e35e4d28 5197 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5198 wdev_unlock(wdev);
5199
93da9cc1 5200 if (err)
4c476991 5201 return err;
93da9cc1 5202
5203 /* Draw up a netlink message to send back */
fd2120ca 5204 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5205 if (!msg)
5206 return -ENOMEM;
15e47304 5207 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5208 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5209 if (!hdr)
efe1cf0c 5210 goto out;
24bdd9f4 5211 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5212 if (!pinfoattr)
5213 goto nla_put_failure;
9360ffd1
DM		 5214 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5215 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5216 cur_params.dot11MeshRetryTimeout) ||
5217 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5218 cur_params.dot11MeshConfirmTimeout) ||
5219 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5220 cur_params.dot11MeshHoldingTimeout) ||
5221 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5222 cur_params.dot11MeshMaxPeerLinks) ||
5223 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5224 cur_params.dot11MeshMaxRetries) ||
5225 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5226 cur_params.dot11MeshTTL) ||
5227 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5228 cur_params.element_ttl) ||
5229 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5230 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5231 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5232 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5233 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5234 cur_params.dot11MeshHWMPmaxPREQretries) ||
5235 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5236 cur_params.path_refresh_time) ||
5237 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5238 cur_params.min_discovery_timeout) ||
5239 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5240 cur_params.dot11MeshHWMPactivePathTimeout) ||
5241 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5242 cur_params.dot11MeshHWMPpreqMinInterval) ||
5243 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5244 cur_params.dot11MeshHWMPperrMinInterval) ||
5245 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5246 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5247 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5248 cur_params.dot11MeshHWMPRootMode) ||
5249 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5250 cur_params.dot11MeshHWMPRannInterval) ||
5251 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5252 cur_params.dot11MeshGateAnnouncementProtocol) ||
5253 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5254 cur_params.dot11MeshForwarding) ||
5255 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5256 cur_params.rssi_threshold) ||
5257 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5258 cur_params.ht_opmode) ||
5259 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5260 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5261 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5262 cur_params.dot11MeshHWMProotInterval) ||
5263 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5264 cur_params.dot11MeshHWMPconfirmationInterval) ||
5265 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5266 cur_params.power_mode) ||
5267 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5268 cur_params.dot11MeshAwakeWindowDuration) ||
5269 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5270 cur_params.plink_timeout))
9360ffd1 5271 goto nla_put_failure;
93da9cc1 5272 nla_nest_end(msg, pinfoattr);
5273 genlmsg_end(msg, hdr);
4c476991 5274 return genlmsg_reply(msg, info);
93da9cc1 5275
3b85875a 5276 nla_put_failure:
93da9cc1 5277 genlmsg_cancel(msg, hdr);
efe1cf0c 5278 out:
d080e275 5279 nlmsg_free(msg);
4c476991 5280 return -ENOBUFS;
93da9cc1 5281}
5282
b54452b0 5283static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5284 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5285 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5286 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5287 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5288 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5289 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5290 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5291 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5292 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5293 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5294 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5295 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5296 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5297 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5298 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5299 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5300 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5301 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5302 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5303 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5304 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5305 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5306 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5307 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5308 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5309 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5310 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5311 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5312};
5313
c80d545d
JC		 5314static const struct nla_policy
5315 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5316 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5317 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5318 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5319 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5320 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5321 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5322 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5323 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5324 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5325};
5326
f151d9db
AB		 5327static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5328{
5329 u8 val = nla_get_u8(nla);
5330 if (val < min || val > max)
5331 return -EINVAL;
5332 *out = val;
5333 return 0;
5334}
5335
5336static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5337{
5338 u8 val = nla_get_u8(nla);
5339 if (val < min || val > max)
5340 return -EINVAL;
5341 *out = val;
5342 return 0;
5343}
5344
5345static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5346{
5347 u16 val = nla_get_u16(nla);
5348 if (val < min || val > max)
5349 return -EINVAL;
5350 *out = val;
5351 return 0;
5352}
5353
5354static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5355{
5356 u32 val = nla_get_u32(nla);
5357 if (val < min || val > max)
5358 return -EINVAL;
5359 *out = val;
5360 return 0;
5361}
5362
5363static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5364{
5365 s32 val = nla_get_s32(nla);
5366 if (val < min || val > max)
5367 return -EINVAL;
5368 *out = val;
5369 return 0;
5370}
5371
24bdd9f4 5372static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5373 struct mesh_config *cfg,
5374 u32 *mask_out)
93da9cc1 5375{
93da9cc1 5376 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5377 u32 mask = 0;
9757235f 5378 u16 ht_opmode;
93da9cc1 5379
ea54fba2
MP		 5380#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5381do { \
5382 if (tb[attr]) { \
f151d9db 5383 if (fn(tb[attr], min, max, &cfg->param)) \
ea54fba2 5384 return -EINVAL; \
ea54fba2
MP		 5385 mask |= (1 << (attr - 1)); \
5386 } \
5387} while (0)
bd90fdcc 5388
24bdd9f4 5389 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5390 return -EINVAL;
5391 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5392 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5393 nl80211_meshconf_params_policy))
93da9cc1 5394 return -EINVAL;
5395
93da9cc1 5396 /* This makes sure that there aren't more than 32 mesh config
5397 * parameters (otherwise our bitfield scheme would not work.) */
5398 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5399
5400 /* Fill in the params struct */
ea54fba2 5401 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea 5402 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
f151d9db 5403 nl80211_check_u16);
ea54fba2 5404 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea 5405 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
f151d9db 5406 nl80211_check_u16);
ea54fba2 5407 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea 5408 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
f151d9db 5409 nl80211_check_u16);
ea54fba2 5410 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea 5411 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
f151d9db 5412 nl80211_check_u16);
ea54fba2 5413 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea 5414 mask, NL80211_MESHCONF_MAX_RETRIES,
f151d9db 5415 nl80211_check_u8);
ea54fba2 5416 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
f151d9db 5417 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
ea54fba2 5418 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea 5419 mask, NL80211_MESHCONF_ELEMENT_TTL,
f151d9db 5420 nl80211_check_u8);
ea54fba2 5421 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea 5422 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
f151d9db 5423 nl80211_check_bool);
ea54fba2
MP		 5424 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5425 1, 255, mask,
a4f606ea 5426 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
f151d9db 5427 nl80211_check_u32);
ea54fba2 5428 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea 5429 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
f151d9db 5430 nl80211_check_u8);
ea54fba2 5431 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea 5432 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
f151d9db 5433 nl80211_check_u32);
ea54fba2 5434 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea 5435 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
f151d9db 5436 nl80211_check_u16);
ea54fba2
MP		 5437 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5438 1, 65535, mask,
a4f606ea 5439 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
f151d9db 5440 nl80211_check_u32);
93da9cc1 5441 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5442 1, 65535, mask,
5443 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
f151d9db 5444 nl80211_check_u16);
dca7e943 5445 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5446 1, 65535, mask,
5447 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
f151d9db 5448 nl80211_check_u16);
93da9cc1 5449 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5450 dot11MeshHWMPnetDiameterTraversalTime,
5451 1, 65535, mask,
a4f606ea 5452 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
f151d9db 5453 nl80211_check_u16);
ea54fba2
MP		 5454 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5455 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
f151d9db 5456 nl80211_check_u8);
ea54fba2
MP		 5457 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5458 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
f151d9db 5459 nl80211_check_u16);
63c5723b 5460 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5461 dot11MeshGateAnnouncementProtocol, 0, 1,
5462 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
f151d9db 5463 nl80211_check_bool);
ea54fba2 5464 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea 5465 mask, NL80211_MESHCONF_FORWARDING,
f151d9db 5466 nl80211_check_bool);
83374fe9 5467 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5468 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
f151d9db 5469 nl80211_check_s32);
9757235f
MH		 5470 /*
5471 * Check HT operation mode based on
5472 * IEEE 802.11 2012 8.4.2.59 HT Operation element.
5473 */
5474 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
5475 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
5476
5477 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
5478 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
5479 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5480 return -EINVAL;
5481
5482 if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
5483 (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5484 return -EINVAL;
5485
5486 switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
5487 case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
5488 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
5489 if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
5490 return -EINVAL;
5491 break;
5492 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
5493 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
5494 if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5495 return -EINVAL;
5496 break;
5497 }
5498 cfg->ht_opmode = ht_opmode;
5499 }
ac1073a6 5500 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5501 1, 65535, mask,
ac1073a6 5502 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
f151d9db 5503 nl80211_check_u32);
ea54fba2 5504 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5505 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
f151d9db 5506 nl80211_check_u16);
728b19e5 5507 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5508 dot11MeshHWMPconfirmationInterval,
5509 1, 65535, mask,
728b19e5 5510 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
f151d9db 5511 nl80211_check_u16);
3b1c5a53
MP		 5512 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5513 NL80211_MESH_POWER_ACTIVE,
5514 NL80211_MESH_POWER_MAX,
5515 mask, NL80211_MESHCONF_POWER_MODE,
f151d9db 5516 nl80211_check_u32);
3b1c5a53
MP		 5517 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5518 0, 65535, mask,
f151d9db 5519 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
31f909a2 5520 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538 5521 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
f151d9db 5522 nl80211_check_u32);
bd90fdcc
JB		 5523 if (mask_out)
5524 *mask_out = mask;
c80d545d 5525
bd90fdcc
JB		 5526 return 0;
5527
5528#undef FILL_IN_MESH_PARAM_IF_SET
5529}
5530
c80d545d
JC		 5531static int nl80211_parse_mesh_setup(struct genl_info *info,
5532 struct mesh_setup *setup)
5533{
bb2798d4 5534 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5535 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5536
5537 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5538 return -EINVAL;
5539 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5540 info->attrs[NL80211_ATTR_MESH_SETUP],
5541 nl80211_mesh_setup_params_policy))
5542 return -EINVAL;
5543
d299a1f2
JC		 5544 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5545 setup->sync_method =
5546 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5547 IEEE80211_SYNC_METHOD_VENDOR :
5548 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5549
c80d545d
JC		 5550 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5551 setup->path_sel_proto =
5552 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5553 IEEE80211_PATH_PROTOCOL_VENDOR :
5554 IEEE80211_PATH_PROTOCOL_HWMP;
5555
5556 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5557 setup->path_metric =
5558 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5559 IEEE80211_PATH_METRIC_VENDOR :
5560 IEEE80211_PATH_METRIC_AIRTIME;
5561
581a8b0f 5562 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5563 struct nlattr *ieattr =
581a8b0f 5564 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5565 if (!is_valid_ie_attr(ieattr))
5566 return -EINVAL;
581a8b0f
JC		 5567 setup->ie = nla_data(ieattr);
5568 setup->ie_len = nla_len(ieattr);
c80d545d 5569 }
bb2798d4
TP		 5570 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5571 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5572 return -EINVAL;
5573 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5574 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5575 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5576 if (setup->is_secure)
5577 setup->user_mpm = true;
c80d545d 5578
6e16d90b
CT		 5579 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5580 if (!setup->user_mpm)
5581 return -EINVAL;
5582 setup->auth_id =
5583 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5584 }
5585
c80d545d
JC		 5586 return 0;
5587}
5588
24bdd9f4 5589static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5590 struct genl_info *info)
bd90fdcc
JB		 5591{
5592 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5593 struct net_device *dev = info->user_ptr[1];
29cbe68c 5594 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5595 struct mesh_config cfg;
5596 u32 mask;
5597 int err;
5598
29cbe68c
JB		 5599 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5600 return -EOPNOTSUPP;
5601
24bdd9f4 5602 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5603 return -EOPNOTSUPP;
5604
24bdd9f4 5605 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5606 if (err)
5607 return err;
5608
29cbe68c
JB		 5609 wdev_lock(wdev);
5610 if (!wdev->mesh_id_len)
5611 err = -ENOLINK;
5612
5613 if (!err)
e35e4d28 5614 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5615
5616 wdev_unlock(wdev);
5617
5618 return err;
93da9cc1 5619}
5620
ad30ca2c
AN		 5621static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5622 struct sk_buff *msg)
f130347c 5623{
f130347c
LR		 5624 struct nlattr *nl_reg_rules;
5625 unsigned int i;
f130347c 5626
458f4f9e
JB		 5627 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5628 (regdom->dfs_region &&
5629 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5630 goto nla_put_failure;
458f4f9e 5631
f130347c
LR		 5632 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5633 if (!nl_reg_rules)
ad30ca2c 5634 goto nla_put_failure;
f130347c 5635
458f4f9e 5636 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5637 struct nlattr *nl_reg_rule;
5638 const struct ieee80211_reg_rule *reg_rule;
5639 const struct ieee80211_freq_range *freq_range;
5640 const struct ieee80211_power_rule *power_rule;
97524820 5641 unsigned int max_bandwidth_khz;
f130347c 5642
458f4f9e 5643 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5644 freq_range = &reg_rule->freq_range;
5645 power_rule = &reg_rule->power_rule;
5646
5647 nl_reg_rule = nla_nest_start(msg, i);
5648 if (!nl_reg_rule)
ad30ca2c 5649 goto nla_put_failure;
f130347c 5650
97524820
JD		 5651 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5652 if (!max_bandwidth_khz)
5653 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5654 reg_rule);
5655
9360ffd1
DM		 5656 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5657 reg_rule->flags) ||
5658 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5659 freq_range->start_freq_khz) ||
5660 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5661 freq_range->end_freq_khz) ||
5662 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5663 max_bandwidth_khz) ||
9360ffd1
DM		 5664 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5665 power_rule->max_antenna_gain) ||
5666 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5667 power_rule->max_eirp) ||
5668 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5669 reg_rule->dfs_cac_ms))
ad30ca2c 5670 goto nla_put_failure;
f130347c
LR		 5671
5672 nla_nest_end(msg, nl_reg_rule);
5673 }
5674
5675 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5676 return 0;
5677
5678nla_put_failure:
5679 return -EMSGSIZE;
5680}
5681
5682static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5683{
5684 const struct ieee80211_regdomain *regdom = NULL;
5685 struct cfg80211_registered_device *rdev;
5686 struct wiphy *wiphy = NULL;
5687 struct sk_buff *msg;
5688 void *hdr;
5689
5690 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5691 if (!msg)
5692 return -ENOBUFS;
5693
5694 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5695 NL80211_CMD_GET_REG);
5696 if (!hdr)
5697 goto put_failure;
5698
5699 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5700 bool self_managed;
5701
ad30ca2c
AN		 5702 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5703 if (IS_ERR(rdev)) {
5704 nlmsg_free(msg);
5705 return PTR_ERR(rdev);
5706 }
5707
5708 wiphy = &rdev->wiphy;
1bdd716c
AN		 5709 self_managed = wiphy->regulatory_flags &
5710 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5711 regdom = get_wiphy_regdom(wiphy);
5712
1bdd716c
AN		 5713 /* a self-managed-reg device must have a private regdom */
5714 if (WARN_ON(!regdom && self_managed)) {
5715 nlmsg_free(msg);
5716 return -EINVAL;
5717 }
5718
ad30ca2c
AN		 5719 if (regdom &&
5720 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5721 goto nla_put_failure;
5722 }
5723
5724 if (!wiphy && reg_last_request_cell_base() &&
5725 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5726 NL80211_USER_REG_HINT_CELL_BASE))
5727 goto nla_put_failure;
5728
5729 rcu_read_lock();
5730
5731 if (!regdom)
5732 regdom = rcu_dereference(cfg80211_regdomain);
5733
5734 if (nl80211_put_regdom(regdom, msg))
5735 goto nla_put_failure_rcu;
5736
5737 rcu_read_unlock();
f130347c
LR		 5738
5739 genlmsg_end(msg, hdr);
5fe231e8 5740 return genlmsg_reply(msg, info);
f130347c 5741
458f4f9e
JB		 5742nla_put_failure_rcu:
5743 rcu_read_unlock();
f130347c
LR		 5744nla_put_failure:
5745 genlmsg_cancel(msg, hdr);
efe1cf0c 5746put_failure:
d080e275 5747 nlmsg_free(msg);
5fe231e8 5748 return -EMSGSIZE;
f130347c
LR		 5749}
5750
ad30ca2c
AN		 5751static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5752 u32 seq, int flags, struct wiphy *wiphy,
5753 const struct ieee80211_regdomain *regdom)
5754{
5755 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5756 NL80211_CMD_GET_REG);
5757
5758 if (!hdr)
5759 return -1;
5760
5761 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5762
5763 if (nl80211_put_regdom(regdom, msg))
5764 goto nla_put_failure;
5765
5766 if (!wiphy && reg_last_request_cell_base() &&
5767 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5768 NL80211_USER_REG_HINT_CELL_BASE))
5769 goto nla_put_failure;
5770
5771 if (wiphy &&
5772 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5773 goto nla_put_failure;
5774
1bdd716c
AN		 5775 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5776 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5777 goto nla_put_failure;
5778
053c095a
JB		 5779 genlmsg_end(msg, hdr);
5780 return 0;
ad30ca2c
AN		 5781
5782nla_put_failure:
5783 genlmsg_cancel(msg, hdr);
5784 return -EMSGSIZE;
5785}
5786
5787static int nl80211_get_reg_dump(struct sk_buff *skb,
5788 struct netlink_callback *cb)
5789{
5790 const struct ieee80211_regdomain *regdom = NULL;
5791 struct cfg80211_registered_device *rdev;
5792 int err, reg_idx, start = cb->args[2];
5793
5794 rtnl_lock();
5795
5796 if (cfg80211_regdomain && start == 0) {
5797 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5798 NLM_F_MULTI, NULL,
5799 rtnl_dereference(cfg80211_regdomain));
5800 if (err < 0)
5801 goto out_err;
5802 }
5803
5804 /* the global regdom is idx 0 */
5805 reg_idx = 1;
5806 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5807 regdom = get_wiphy_regdom(&rdev->wiphy);
5808 if (!regdom)
5809 continue;
5810
5811 if (++reg_idx <= start)
5812 continue;
5813
5814 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5815 NLM_F_MULTI, &rdev->wiphy, regdom);
5816 if (err < 0) {
5817 reg_idx--;
5818 break;
5819 }
5820 }
5821
5822 cb->args[2] = reg_idx;
5823 err = skb->len;
5824out_err:
5825 rtnl_unlock();
5826 return err;
5827}
5828
b6863036
JB		 5829#ifdef CONFIG_CFG80211_CRDA_SUPPORT
5830static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
5831 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5832 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5833 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5834 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5835 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5836 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5837 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
5838};
5839
5840static int parse_reg_rule(struct nlattr *tb[],
5841 struct ieee80211_reg_rule *reg_rule)
5842{
5843 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
5844 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
5845
5846 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
5847 return -EINVAL;
5848 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
5849 return -EINVAL;
5850 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
5851 return -EINVAL;
5852 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
5853 return -EINVAL;
5854 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
5855 return -EINVAL;
5856
5857 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
5858
5859 freq_range->start_freq_khz =
5860 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
5861 freq_range->end_freq_khz =
5862 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
5863 freq_range->max_bandwidth_khz =
5864 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
5865
5866 power_rule->max_eirp =
5867 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
5868
5869 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
5870 power_rule->max_antenna_gain =
5871 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
5872
5873 if (tb[NL80211_ATTR_DFS_CAC_TIME])
5874 reg_rule->dfs_cac_ms =
5875 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
5876
5877 return 0;
5878}
5879
b2e1b302
LR		 5880static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5881{
5882 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5883 struct nlattr *nl_reg_rule;
ea372c54
JB		 5884 char *alpha2;
5885 int rem_reg_rules, r;
b2e1b302 5886 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5887 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5888 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5889
5890 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5891 return -EINVAL;
5892
5893 if (!info->attrs[NL80211_ATTR_REG_RULES])
5894 return -EINVAL;
5895
5896 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5897
8b60b078
LR		 5898 if (info->attrs[NL80211_ATTR_DFS_REGION])
5899 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5900
b2e1b302 5901 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5902 rem_reg_rules) {
b2e1b302
LR		 5903 num_rules++;
5904 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5905 return -EINVAL;
b2e1b302
LR		 5906 }
5907
e438768f
LR		 5908 if (!reg_is_valid_request(alpha2))
5909 return -EINVAL;
5910
b2e1b302 5911 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5912 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5913
5914 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5915 if (!rd)
5916 return -ENOMEM;
b2e1b302
LR		 5917
5918 rd->n_reg_rules = num_rules;
5919 rd->alpha2[0] = alpha2[0];
5920 rd->alpha2[1] = alpha2[1];
5921
8b60b078
LR		 5922 /*
5923 * Disable DFS master mode if the DFS region was
5924 * not supported or known on this kernel.
5925 */
5926 if (reg_supported_dfs_region(dfs_region))
5927 rd->dfs_region = dfs_region;
5928
b2e1b302 5929 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5930 rem_reg_rules) {
ae811e21
JB		 5931 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5932 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5933 reg_rule_policy);
5934 if (r)
5935 goto bad_reg;
b2e1b302
LR		 5936 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5937 if (r)
5938 goto bad_reg;
5939
5940 rule_idx++;
5941
d0e18f83
LR		 5942 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5943 r = -EINVAL;
b2e1b302 5944 goto bad_reg;
d0e18f83 5945 }
b2e1b302
LR		 5946 }
5947
06627990
JB		 5948 /* set_regdom takes ownership of rd */
5949 return set_regdom(rd, REGD_SOURCE_CRDA);
d2372b31 5950 bad_reg:
b2e1b302 5951 kfree(rd);
d0e18f83 5952 return r;
b2e1b302 5953}
b6863036 5954#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 5955
83f5e2cf
JB		 5956static int validate_scan_freqs(struct nlattr *freqs)
5957{
5958 struct nlattr *attr1, *attr2;
5959 int n_channels = 0, tmp1, tmp2;
5960
5961 nla_for_each_nested(attr1, freqs, tmp1) {
5962 n_channels++;
5963 /*
5964 * Some hardware has a limited channel list for
5965 * scanning, and it is pretty much nonsensical
5966 * to scan for a channel twice, so disallow that
5967 * and don't require drivers to check that the
5968 * channel list they get isn't longer than what
5969 * they can scan, as long as they can scan all
5970 * the channels they registered at once.
5971 */
5972 nla_for_each_nested(attr2, freqs, tmp2)
5973 if (attr1 != attr2 &&
5974 nla_get_u32(attr1) == nla_get_u32(attr2))
5975 return 0;
5976 }
5977
5978 return n_channels;
5979}
5980
57fbcce3 5981static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
38de03d2 5982{
57fbcce3 5983 return b < NUM_NL80211_BANDS && wiphy->bands[b];
38de03d2
AS		 5984}
5985
5986static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
5987 struct cfg80211_bss_selection *bss_select)
5988{
5989 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
5990 struct nlattr *nest;
5991 int err;
5992 bool found = false;
5993 int i;
5994
5995 /* only process one nested attribute */
5996 nest = nla_data(nla);
5997 if (!nla_ok(nest, nla_len(nest)))
5998 return -EINVAL;
5999
6000 err = nla_parse(attr, NL80211_BSS_SELECT_ATTR_MAX, nla_data(nest),
6001 nla_len(nest), nl80211_bss_select_policy);
6002 if (err)
6003 return err;
6004
6005 /* only one attribute may be given */
6006 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6007 if (attr[i]) {
6008 if (found)
6009 return -EINVAL;
6010 found = true;
6011 }
6012 }
6013
6014 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6015
6016 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6017 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6018
6019 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6020 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6021 bss_select->param.band_pref =
6022 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6023 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6024 return -EINVAL;
6025 }
6026
6027 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6028 struct nl80211_bss_select_rssi_adjust *adj_param;
6029
6030 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6031 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6032 bss_select->param.adjust.band = adj_param->band;
6033 bss_select->param.adjust.delta = adj_param->delta;
6034 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6035 return -EINVAL;
6036 }
6037
6038 /* user-space did not provide behaviour attribute */
6039 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6040 return -EINVAL;
6041
6042 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6043 return -EINVAL;
6044
6045 return 0;
6046}
6047
ad2b26ab
JB		 6048static int nl80211_parse_random_mac(struct nlattr **attrs,
6049 u8 *mac_addr, u8 *mac_addr_mask)
6050{
6051 int i;
6052
6053 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 6054 eth_zero_addr(mac_addr);
6055 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 6056 mac_addr[0] = 0x2;
6057 mac_addr_mask[0] = 0x3;
6058
6059 return 0;
6060 }
6061
6062 /* need both or none */
6063 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6064 return -EINVAL;
6065
6066 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6067 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6068
6069 /* don't allow or configure an mcast address */
6070 if (!is_multicast_ether_addr(mac_addr_mask) ||
6071 is_multicast_ether_addr(mac_addr))
6072 return -EINVAL;
6073
6074 /*
6075 * allow users to pass a MAC address that has bits set outside
6076 * of the mask, but don't bother drivers with having to deal
6077 * with such bits
6078 */
6079 for (i = 0; i < ETH_ALEN; i++)
6080 mac_addr[i] &= mac_addr_mask[i];
6081
6082 return 0;
6083}
6084
2a519311
JB		 6085static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6086{
4c476991 6087 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 6088 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 6089 struct cfg80211_scan_request *request;
2a519311
JB		 6090 struct nlattr *attr;
6091 struct wiphy *wiphy;
83f5e2cf 6092 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 6093 size_t ie_len;
2a519311 6094
f4a11bb0
JB		 6095 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6096 return -EINVAL;
6097
79c97e97 6098 wiphy = &rdev->wiphy;
2a519311 6099
4c476991
JB		 6100 if (!rdev->ops->scan)
6101 return -EOPNOTSUPP;
2a519311 6102
f9d15d16 6103 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 6104 err = -EBUSY;
6105 goto unlock;
6106 }
2a519311
JB		 6107
6108 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 6109 n_channels = validate_scan_freqs(
6110 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 6111 if (!n_channels) {
6112 err = -EINVAL;
6113 goto unlock;
6114 }
2a519311 6115 } else {
bdfbec2d 6116 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 6117 }
6118
6119 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6120 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6121 n_ssids++;
6122
f9f47529
JB		 6123 if (n_ssids > wiphy->max_scan_ssids) {
6124 err = -EINVAL;
6125 goto unlock;
6126 }
2a519311 6127
70692ad2
JM		 6128 if (info->attrs[NL80211_ATTR_IE])
6129 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6130 else
6131 ie_len = 0;
6132
f9f47529
JB		 6133 if (ie_len > wiphy->max_scan_ie_len) {
6134 err = -EINVAL;
6135 goto unlock;
6136 }
18a83659 6137
2a519311 6138 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 6139 + sizeof(*request->ssids) * n_ssids
6140 + sizeof(*request->channels) * n_channels
70692ad2 6141 + ie_len, GFP_KERNEL);
f9f47529
JB		 6142 if (!request) {
6143 err = -ENOMEM;
6144 goto unlock;
6145 }
2a519311 6146
2a519311 6147 if (n_ssids)
5ba63533 6148 request->ssids = (void *)&request->channels[n_channels];
2a519311 6149 request->n_ssids = n_ssids;
70692ad2 6150 if (ie_len) {
13874e4b 6151 if (n_ssids)
70692ad2
JM		 6152 request->ie = (void *)(request->ssids + n_ssids);
6153 else
6154 request->ie = (void *)(request->channels + n_channels);
6155 }
2a519311 6156
584991dc 6157 i = 0;
2a519311
JB		 6158 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6159 /* user specified, bail out if channel not found */
2a519311 6160 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6161 struct ieee80211_channel *chan;
6162
6163 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6164
6165 if (!chan) {
2a519311
JB		 6166 err = -EINVAL;
6167 goto out_free;
6168 }
584991dc
JB		 6169
6170 /* ignore disabled channels */
6171 if (chan->flags & IEEE80211_CHAN_DISABLED)
6172 continue;
6173
6174 request->channels[i] = chan;
2a519311
JB		 6175 i++;
6176 }
6177 } else {
57fbcce3 6178 enum nl80211_band band;
34850ab2 6179
2a519311 6180 /* all channels */
57fbcce3 6181 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2a519311 6182 int j;
7a087e74 6183
2a519311
JB		 6184 if (!wiphy->bands[band])
6185 continue;
6186 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6187 struct ieee80211_channel *chan;
6188
6189 chan = &wiphy->bands[band]->channels[j];
6190
6191 if (chan->flags & IEEE80211_CHAN_DISABLED)
6192 continue;
6193
6194 request->channels[i] = chan;
2a519311
JB		 6195 i++;
6196 }
6197 }
6198 }
6199
584991dc
JB		 6200 if (!i) {
6201 err = -EINVAL;
6202 goto out_free;
6203 }
6204
6205 request->n_channels = i;
6206
2a519311 6207 i = 0;
13874e4b 6208 if (n_ssids) {
2a519311 6209 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6210 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6211 err = -EINVAL;
6212 goto out_free;
6213 }
57a27e1d 6214 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6215 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6216 i++;
6217 }
6218 }
6219
70692ad2
JM		 6220 if (info->attrs[NL80211_ATTR_IE]) {
6221 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6222 memcpy((void *)request->ie,
6223 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6224 request->ie_len);
6225 }
6226
57fbcce3 6227 for (i = 0; i < NUM_NL80211_BANDS; i++)
a401d2bb
JB		 6228 if (wiphy->bands[i])
6229 request->rates[i] =
6230 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6231
6232 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6233 nla_for_each_nested(attr,
6234 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6235 tmp) {
57fbcce3 6236 enum nl80211_band band = nla_type(attr);
34850ab2 6237
57fbcce3 6238 if (band < 0 || band >= NUM_NL80211_BANDS) {
34850ab2
JB		 6239 err = -EINVAL;
6240 goto out_free;
6241 }
1b09cd82
FF		 6242
6243 if (!wiphy->bands[band])
6244 continue;
6245
34850ab2
JB		 6246 err = ieee80211_get_ratemask(wiphy->bands[band],
6247 nla_data(attr),
6248 nla_len(attr),
6249 &request->rates[band]);
6250 if (err)
6251 goto out_free;
6252 }
6253 }
6254
1d76250b
AS		 6255 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6256 if (!wiphy_ext_feature_isset(wiphy,
6257 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6258 err = -EOPNOTSUPP;
6259 goto out_free;
6260 }
6261
6262 request->duration =
6263 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6264 request->duration_mandatory =
6265 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6266 }
6267
46856bbf 6268 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 6269 request->flags = nla_get_u32(
6270 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6271 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6272 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6273 err = -EOPNOTSUPP;
6274 goto out_free;
6275 }
ad2b26ab
JB		 6276
6277 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6278 if (!(wiphy->features &
6279 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6280 err = -EOPNOTSUPP;
6281 goto out_free;
6282 }
6283
6284 if (wdev->current_bss) {
6285 err = -EOPNOTSUPP;
6286 goto out_free;
6287 }
6288
6289 err = nl80211_parse_random_mac(info->attrs,
6290 request->mac_addr,
6291 request->mac_addr_mask);
6292 if (err)
6293 goto out_free;
6294 }
46856bbf 6295 }
ed473771 6296
e9f935e3
RM		 6297 request->no_cck =
6298 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6299
818965d3
JM		 6300 if (info->attrs[NL80211_ATTR_MAC])
6301 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6302 ETH_ALEN);
6303 else
6304 eth_broadcast_addr(request->bssid);
6305
fd014284 6306 request->wdev = wdev;
79c97e97 6307 request->wiphy = &rdev->wiphy;
15d6030b 6308 request->scan_start = jiffies;
2a519311 6309
79c97e97 6310 rdev->scan_req = request;
e35e4d28 6311 err = rdev_scan(rdev, request);
2a519311 6312
463d0183 6313 if (!err) {
fd014284
JB		 6314 nl80211_send_scan_start(rdev, wdev);
6315 if (wdev->netdev)
6316 dev_hold(wdev->netdev);
4c476991 6317 } else {
2a519311 6318 out_free:
79c97e97 6319 rdev->scan_req = NULL;
2a519311
JB		 6320 kfree(request);
6321 }
3b85875a 6322
f9f47529 6323 unlock:
2a519311
JB		 6324 return err;
6325}
6326
91d3ab46
VK		 6327static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6328{
6329 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6330 struct wireless_dev *wdev = info->user_ptr[1];
6331
6332 if (!rdev->ops->abort_scan)
6333 return -EOPNOTSUPP;
6334
6335 if (rdev->scan_msg)
6336 return 0;
6337
6338 if (!rdev->scan_req)
6339 return -ENOENT;
6340
6341 rdev_abort_scan(rdev, wdev);
6342 return 0;
6343}
6344
3b06d277
AS		 6345static int
6346nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6347 struct cfg80211_sched_scan_request *request,
6348 struct nlattr **attrs)
6349{
6350 int tmp, err, i = 0;
6351 struct nlattr *attr;
6352
6353 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6354 u32 interval;
6355
6356 /*
6357 * If scan plans are not specified,
6358 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6359 * case one scan plan will be set with the specified scan
6360 * interval and infinite number of iterations.
6361 */
6362 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6363 return -EINVAL;
6364
6365 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6366 if (!interval)
6367 return -EINVAL;
6368
6369 request->scan_plans[0].interval =
6370 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6371 if (!request->scan_plans[0].interval)
6372 return -EINVAL;
6373
6374 if (request->scan_plans[0].interval >
6375 wiphy->max_sched_scan_plan_interval)
6376 request->scan_plans[0].interval =
6377 wiphy->max_sched_scan_plan_interval;
6378
6379 return 0;
6380 }
6381
6382 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6383 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6384
6385 if (WARN_ON(i >= n_plans))
6386 return -EINVAL;
6387
6388 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6389 nla_data(attr), nla_len(attr),
6390 nl80211_plan_policy);
6391 if (err)
6392 return err;
6393
6394 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6395 return -EINVAL;
6396
6397 request->scan_plans[i].interval =
6398 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6399 if (!request->scan_plans[i].interval ||
6400 request->scan_plans[i].interval >
6401 wiphy->max_sched_scan_plan_interval)
6402 return -EINVAL;
6403
6404 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6405 request->scan_plans[i].iterations =
6406 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6407 if (!request->scan_plans[i].iterations ||
6408 (request->scan_plans[i].iterations >
6409 wiphy->max_sched_scan_plan_iterations))
6410 return -EINVAL;
6411 } else if (i < n_plans - 1) {
6412 /*
6413 * All scan plans but the last one must specify
6414 * a finite number of iterations
6415 */
6416 return -EINVAL;
6417 }
6418
6419 i++;
6420 }
6421
6422 /*
6423 * The last scan plan must not specify the number of
6424 * iterations, it is supposed to run infinitely
6425 */
6426 if (request->scan_plans[n_plans - 1].iterations)
6427 return -EINVAL;
6428
6429 return 0;
6430}
6431
256da02d 6432static struct cfg80211_sched_scan_request *
ad2b26ab 6433nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 6434 struct nlattr **attrs)
807f8a8c
LC		 6435{
6436 struct cfg80211_sched_scan_request *request;
807f8a8c 6437 struct nlattr *attr;
3b06d277 6438 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
57fbcce3 6439 enum nl80211_band band;
807f8a8c 6440 size_t ie_len;
a1f1c21c 6441 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6442 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6443
256da02d
LC		 6444 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6445 return ERR_PTR(-EINVAL);
807f8a8c 6446
256da02d 6447 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6448 n_channels = validate_scan_freqs(
256da02d 6449 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6450 if (!n_channels)
256da02d 6451 return ERR_PTR(-EINVAL);
807f8a8c 6452 } else {
bdfbec2d 6453 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6454 }
6455
256da02d
LC		 6456 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6457 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6458 tmp)
6459 n_ssids++;
6460
93b6aa69 6461 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6462 return ERR_PTR(-EINVAL);
807f8a8c 6463
ea73cbce
JB		 6464 /*
6465 * First, count the number of 'real' matchsets. Due to an issue with
6466 * the old implementation, matchsets containing only the RSSI attribute
6467 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6468 * RSSI for all matchsets, rather than their own matchset for reporting
6469 * all APs with a strong RSSI. This is needed to be compatible with
6470 * older userspace that treated a matchset with only the RSSI as the
6471 * global RSSI for all other matchsets - if there are other matchsets.
6472 */
256da02d 6473 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6474 nla_for_each_nested(attr,
256da02d 6475 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6476 tmp) {
6477 struct nlattr *rssi;
6478
6479 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6480 nla_data(attr), nla_len(attr),
6481 nl80211_match_policy);
6482 if (err)
256da02d 6483 return ERR_PTR(err);
ea73cbce
JB		 6484 /* add other standalone attributes here */
6485 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6486 n_match_sets++;
6487 continue;
6488 }
6489 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6490 if (rssi)
6491 default_match_rssi = nla_get_s32(rssi);
6492 }
6493 }
6494
6495 /* However, if there's no other matchset, add the RSSI one */
6496 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6497 n_match_sets = 1;
a1f1c21c
LC		 6498
6499 if (n_match_sets > wiphy->max_match_sets)
256da02d 6500 return ERR_PTR(-EINVAL);
a1f1c21c 6501
256da02d
LC		 6502 if (attrs[NL80211_ATTR_IE])
6503 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6504 else
6505 ie_len = 0;
6506
5a865bad 6507 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6508 return ERR_PTR(-EINVAL);
c10841ca 6509
3b06d277
AS		 6510 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6511 /*
6512 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6513 * each scan plan already specifies its own interval
6514 */
6515 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6516 return ERR_PTR(-EINVAL);
6517
6518 nla_for_each_nested(attr,
6519 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6520 n_plans++;
6521 } else {
6522 /*
6523 * The scan interval attribute is kept for backward
6524 * compatibility. If no scan plans are specified and sched scan
6525 * interval is specified, one scan plan will be set with this
6526 * scan interval and infinite number of iterations.
6527 */
6528 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6529 return ERR_PTR(-EINVAL);
6530
6531 n_plans = 1;
6532 }
6533
6534 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6535 return ERR_PTR(-EINVAL);
6536
807f8a8c 6537 request = kzalloc(sizeof(*request)
a2cd43c5 6538 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6539 + sizeof(*request->match_sets) * n_match_sets
3b06d277 6540 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 6541 + sizeof(*request->channels) * n_channels
807f8a8c 6542 + ie_len, GFP_KERNEL);
256da02d
LC		 6543 if (!request)
6544 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6545
6546 if (n_ssids)
6547 request->ssids = (void *)&request->channels[n_channels];
6548 request->n_ssids = n_ssids;
6549 if (ie_len) {
13874e4b 6550 if (n_ssids)
807f8a8c
LC		 6551 request->ie = (void *)(request->ssids + n_ssids);
6552 else
6553 request->ie = (void *)(request->channels + n_channels);
6554 }
6555
a1f1c21c
LC		 6556 if (n_match_sets) {
6557 if (request->ie)
6558 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6559 else if (n_ssids)
a1f1c21c
LC		 6560 request->match_sets =
6561 (void *)(request->ssids + n_ssids);
6562 else
6563 request->match_sets =
6564 (void *)(request->channels + n_channels);
6565 }
6566 request->n_match_sets = n_match_sets;
6567
3b06d277
AS		 6568 if (n_match_sets)
6569 request->scan_plans = (void *)(request->match_sets +
6570 n_match_sets);
6571 else if (request->ie)
6572 request->scan_plans = (void *)(request->ie + ie_len);
6573 else if (n_ssids)
6574 request->scan_plans = (void *)(request->ssids + n_ssids);
6575 else
6576 request->scan_plans = (void *)(request->channels + n_channels);
6577
6578 request->n_scan_plans = n_plans;
6579
807f8a8c 6580 i = 0;
256da02d 6581 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6582 /* user specified, bail out if channel not found */
6583 nla_for_each_nested(attr,
256da02d 6584 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6585 tmp) {
6586 struct ieee80211_channel *chan;
6587
6588 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6589
6590 if (!chan) {
6591 err = -EINVAL;
6592 goto out_free;
6593 }
6594
6595 /* ignore disabled channels */
6596 if (chan->flags & IEEE80211_CHAN_DISABLED)
6597 continue;
6598
6599 request->channels[i] = chan;
6600 i++;
6601 }
6602 } else {
6603 /* all channels */
57fbcce3 6604 for (band = 0; band < NUM_NL80211_BANDS; band++) {
807f8a8c 6605 int j;
7a087e74 6606
807f8a8c
LC		 6607 if (!wiphy->bands[band])
6608 continue;
6609 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6610 struct ieee80211_channel *chan;
6611
6612 chan = &wiphy->bands[band]->channels[j];
6613
6614 if (chan->flags & IEEE80211_CHAN_DISABLED)
6615 continue;
6616
6617 request->channels[i] = chan;
6618 i++;
6619 }
6620 }
6621 }
6622
6623 if (!i) {
6624 err = -EINVAL;
6625 goto out_free;
6626 }
6627
6628 request->n_channels = i;
6629
6630 i = 0;
13874e4b 6631 if (n_ssids) {
256da02d 6632 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6633 tmp) {
57a27e1d 6634 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6635 err = -EINVAL;
6636 goto out_free;
6637 }
57a27e1d 6638 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6639 memcpy(request->ssids[i].ssid, nla_data(attr),
6640 nla_len(attr));
807f8a8c
LC		 6641 i++;
6642 }
6643 }
6644
a1f1c21c 6645 i = 0;
256da02d 6646 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6647 nla_for_each_nested(attr,
256da02d 6648 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6649 tmp) {
88e920b4 6650 struct nlattr *ssid, *rssi;
a1f1c21c 6651
ae811e21
JB		 6652 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6653 nla_data(attr), nla_len(attr),
6654 nl80211_match_policy);
6655 if (err)
6656 goto out_free;
4a4ab0d7 6657 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6658 if (ssid) {
ea73cbce
JB		 6659 if (WARN_ON(i >= n_match_sets)) {
6660 /* this indicates a programming error,
6661 * the loop above should have verified
6662 * things properly
6663 */
6664 err = -EINVAL;
6665 goto out_free;
6666 }
6667
a1f1c21c
LC		 6668 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6669 err = -EINVAL;
6670 goto out_free;
6671 }
6672 memcpy(request->match_sets[i].ssid.ssid,
6673 nla_data(ssid), nla_len(ssid));
6674 request->match_sets[i].ssid.ssid_len =
6675 nla_len(ssid);
56ab364f 6676 /* special attribute - old implementation w/a */
ea73cbce
JB		 6677 request->match_sets[i].rssi_thold =
6678 default_match_rssi;
6679 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6680 if (rssi)
6681 request->match_sets[i].rssi_thold =
6682 nla_get_s32(rssi);
a1f1c21c
LC		 6683 }
6684 i++;
6685 }
ea73cbce
JB		 6686
6687 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6688 if (i == 0 && n_match_sets)
ea73cbce
JB		 6689 request->match_sets[0].rssi_thold = default_match_rssi;
6690
6691 request->min_rssi_thold = INT_MAX;
6692 for (i = 0; i < n_match_sets; i++)
6693 request->min_rssi_thold =
6694 min(request->match_sets[i].rssi_thold,
6695 request->min_rssi_thold);
6696 } else {
6697 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6698 }
6699
9900e484
JB		 6700 if (ie_len) {
6701 request->ie_len = ie_len;
807f8a8c 6702 memcpy((void *)request->ie,
256da02d 6703 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6704 request->ie_len);
6705 }
6706
256da02d 6707 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6708 request->flags = nla_get_u32(
256da02d 6709 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6710 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6711 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6712 err = -EOPNOTSUPP;
6713 goto out_free;
6714 }
ad2b26ab
JB		 6715
6716 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6717 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6718
6719 if (!wdev) /* must be net-detect */
6720 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6721
6722 if (!(wiphy->features & flg)) {
6723 err = -EOPNOTSUPP;
6724 goto out_free;
6725 }
6726
6727 if (wdev && wdev->current_bss) {
6728 err = -EOPNOTSUPP;
6729 goto out_free;
6730 }
6731
6732 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6733 request->mac_addr_mask);
6734 if (err)
6735 goto out_free;
6736 }
46856bbf 6737 }
ed473771 6738
9c748934
LC		 6739 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6740 request->delay =
6741 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6742
3b06d277
AS		 6743 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6744 if (err)
6745 goto out_free;
6746
15d6030b 6747 request->scan_start = jiffies;
807f8a8c 6748
256da02d 6749 return request;
807f8a8c
LC		 6750
6751out_free:
6752 kfree(request);
256da02d
LC		 6753 return ERR_PTR(err);
6754}
6755
6756static int nl80211_start_sched_scan(struct sk_buff *skb,
6757 struct genl_info *info)
6758{
6759 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6760 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6761 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6762 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6763 int err;
6764
6765 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6766 !rdev->ops->sched_scan_start)
6767 return -EOPNOTSUPP;
6768
6769 if (rdev->sched_scan_req)
6770 return -EINPROGRESS;
6771
31a60ed1
JR		 6772 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6773 info->attrs);
6774
6775 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6776 if (err)
6777 goto out_err;
6778
31a60ed1 6779 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6780 if (err)
6781 goto out_free;
6782
31a60ed1
JR		 6783 sched_scan_req->dev = dev;
6784 sched_scan_req->wiphy = &rdev->wiphy;
6785
93a1e86c
JR		 6786 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6787 sched_scan_req->owner_nlportid = info->snd_portid;
6788
31a60ed1 6789 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6790
6791 nl80211_send_sched_scan(rdev, dev,
6792 NL80211_CMD_START_SCHED_SCAN);
6793 return 0;
6794
6795out_free:
31a60ed1 6796 kfree(sched_scan_req);
256da02d 6797out_err:
807f8a8c
LC		 6798 return err;
6799}
6800
6801static int nl80211_stop_sched_scan(struct sk_buff *skb,
6802 struct genl_info *info)
6803{
6804 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6805
6806 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6807 !rdev->ops->sched_scan_stop)
6808 return -EOPNOTSUPP;
6809
5fe231e8 6810 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6811}
6812
04f39047
SW		 6813static int nl80211_start_radar_detection(struct sk_buff *skb,
6814 struct genl_info *info)
6815{
6816 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6817 struct net_device *dev = info->user_ptr[1];
6818 struct wireless_dev *wdev = dev->ieee80211_ptr;
6819 struct cfg80211_chan_def chandef;
55f7435c 6820 enum nl80211_dfs_regions dfs_region;
31559f35 6821 unsigned int cac_time_ms;
04f39047
SW		 6822 int err;
6823
55f7435c
LR		 6824 dfs_region = reg_get_dfs_region(wdev->wiphy);
6825 if (dfs_region == NL80211_DFS_UNSET)
6826 return -EINVAL;
6827
04f39047
SW		 6828 err = nl80211_parse_chandef(rdev, info, &chandef);
6829 if (err)
6830 return err;
6831
ff311bc1
SW		 6832 if (netif_carrier_ok(dev))
6833 return -EBUSY;
6834
04f39047
SW		 6835 if (wdev->cac_started)
6836 return -EBUSY;
6837
2beb6dab 6838 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6839 wdev->iftype);
04f39047
SW		 6840 if (err < 0)
6841 return err;
6842
6843 if (err == 0)
6844 return -EINVAL;
6845
fe7c3a1f 6846 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6847 return -EINVAL;
6848
6849 if (!rdev->ops->start_radar_detection)
6850 return -EOPNOTSUPP;
6851
31559f35
JD		 6852 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6853 if (WARN_ON(!cac_time_ms))
6854 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6855
a1056b1b 6856 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 6857 if (!err) {
9e0e2961 6858 wdev->chandef = chandef;
04f39047
SW		 6859 wdev->cac_started = true;
6860 wdev->cac_start_time = jiffies;
31559f35 6861 wdev->cac_time_ms = cac_time_ms;
04f39047 6862 }
04f39047
SW		 6863 return err;
6864}
6865
16ef1fe2
SW		 6866static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6867{
6868 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6869 struct net_device *dev = info->user_ptr[1];
6870 struct wireless_dev *wdev = dev->ieee80211_ptr;
6871 struct cfg80211_csa_settings params;
6872 /* csa_attrs is defined static to avoid waste of stack size - this
6873 * function is called under RTNL lock, so this should not be a problem.
6874 */
6875 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6876 int err;
ee4bc9e7 6877 bool need_new_beacon = false;
9a774c78 6878 int len, i;
252e07ca 6879 u32 cs_count;
16ef1fe2
SW		 6880
6881 if (!rdev->ops->channel_switch ||
6882 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6883 return -EOPNOTSUPP;
6884
ee4bc9e7
SW		 6885 switch (dev->ieee80211_ptr->iftype) {
6886 case NL80211_IFTYPE_AP:
6887 case NL80211_IFTYPE_P2P_GO:
6888 need_new_beacon = true;
6889
6890 /* useless if AP is not running */
6891 if (!wdev->beacon_interval)
1ff79dfa 6892 return -ENOTCONN;
ee4bc9e7
SW		 6893 break;
6894 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6895 if (!wdev->ssid_len)
6896 return -ENOTCONN;
6897 break;
c6da674a 6898 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6899 if (!wdev->mesh_id_len)
6900 return -ENOTCONN;
ee4bc9e7
SW		 6901 break;
6902 default:
16ef1fe2 6903 return -EOPNOTSUPP;
ee4bc9e7 6904 }
16ef1fe2
SW		 6905
6906 memset(&params, 0, sizeof(params));
6907
6908 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6909 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6910 return -EINVAL;
6911
6912 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6913 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6914 return -EINVAL;
6915
252e07ca
LC		 6916 /* Even though the attribute is u32, the specification says
6917 * u8, so let's make sure we don't overflow.
6918 */
6919 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6920 if (cs_count > 255)
6921 return -EINVAL;
6922
6923 params.count = cs_count;
16ef1fe2 6924
ee4bc9e7
SW		 6925 if (!need_new_beacon)
6926 goto skip_beacons;
6927
16ef1fe2
SW		 6928 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6929 if (err)
6930 return err;
6931
6932 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6933 info->attrs[NL80211_ATTR_CSA_IES],
6934 nl80211_policy);
6935 if (err)
6936 return err;
6937
6938 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6939 if (err)
6940 return err;
6941
6942 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6943 return -EINVAL;
6944
9a774c78
AO		 6945 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6946 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6947 return -EINVAL;
6948
9a774c78
AO		 6949 params.n_counter_offsets_beacon = len / sizeof(u16);
6950 if (rdev->wiphy.max_num_csa_counters &&
6951 (params.n_counter_offsets_beacon >
6952 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6953 return -EINVAL;
6954
9a774c78
AO		 6955 params.counter_offsets_beacon =
6956 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6957
6958 /* sanity checks - counters should fit and be the same */
6959 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6960 u16 offset = params.counter_offsets_beacon[i];
6961
6962 if (offset >= params.beacon_csa.tail_len)
6963 return -EINVAL;
6964
6965 if (params.beacon_csa.tail[offset] != params.count)
6966 return -EINVAL;
6967 }
6968
16ef1fe2 6969 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6970 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6971 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6972 return -EINVAL;
6973
9a774c78
AO		 6974 params.n_counter_offsets_presp = len / sizeof(u16);
6975 if (rdev->wiphy.max_num_csa_counters &&
6976 (params.n_counter_offsets_beacon >
6977 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6978 return -EINVAL;
9a774c78
AO		 6979
6980 params.counter_offsets_presp =
6981 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6982
6983 /* sanity checks - counters should fit and be the same */
6984 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6985 u16 offset = params.counter_offsets_presp[i];
6986
6987 if (offset >= params.beacon_csa.probe_resp_len)
6988 return -EINVAL;
6989
6990 if (params.beacon_csa.probe_resp[offset] !=
6991 params.count)
6992 return -EINVAL;
6993 }
16ef1fe2
SW		 6994 }
6995
ee4bc9e7 6996skip_beacons:
16ef1fe2
SW		 6997 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6998 if (err)
6999 return err;
7000
923b352f
AN		 7001 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
7002 wdev->iftype))
16ef1fe2
SW		 7003 return -EINVAL;
7004
2beb6dab
LC		 7005 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7006 &params.chandef,
7007 wdev->iftype);
7008 if (err < 0)
7009 return err;
7010
dcc6c2f5 7011 if (err > 0)
2beb6dab 7012 params.radar_required = true;
16ef1fe2 7013
16ef1fe2
SW		 7014 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7015 params.block_tx = true;
7016
c56589ed
SW		 7017 wdev_lock(wdev);
7018 err = rdev_channel_switch(rdev, dev, &params);
7019 wdev_unlock(wdev);
7020
7021 return err;
16ef1fe2
SW		 7022}
7023
9720bb3a
JB		 7024static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7025 u32 seq, int flags,
2a519311 7026 struct cfg80211_registered_device *rdev,
48ab905d
JB		 7027 struct wireless_dev *wdev,
7028 struct cfg80211_internal_bss *intbss)
2a519311 7029{
48ab905d 7030 struct cfg80211_bss *res = &intbss->pub;
9caf0364 7031 const struct cfg80211_bss_ies *ies;
2a519311
JB		 7032 void *hdr;
7033 struct nlattr *bss;
48ab905d
JB		 7034
7035 ASSERT_WDEV_LOCK(wdev);
2a519311 7036
15e47304 7037 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 7038 NL80211_CMD_NEW_SCAN_RESULTS);
7039 if (!hdr)
7040 return -1;
7041
9720bb3a
JB		 7042 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7043
97990a06
JB		 7044 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7045 goto nla_put_failure;
7046 if (wdev->netdev &&
9360ffd1
DM		 7047 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7048 goto nla_put_failure;
2dad624e
ND		 7049 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7050 NL80211_ATTR_PAD))
97990a06 7051 goto nla_put_failure;
2a519311
JB		 7052
7053 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7054 if (!bss)
7055 goto nla_put_failure;
9360ffd1 7056 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 7057 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 7058 goto nla_put_failure;
9caf0364
JB		 7059
7060 rcu_read_lock();
0e227084
JB		 7061 /* indicate whether we have probe response data or not */
7062 if (rcu_access_pointer(res->proberesp_ies) &&
7063 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7064 goto fail_unlock_rcu;
7065
7066 /* this pointer prefers to be pointed to probe response data
7067 * but is always valid
7068 */
9caf0364 7069 ies = rcu_dereference(res->ies);
8cef2c9d 7070 if (ies) {
2dad624e
ND		 7071 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7072 NL80211_BSS_PAD))
8cef2c9d 7073 goto fail_unlock_rcu;
8cef2c9d
JB		 7074 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7075 ies->len, ies->data))
7076 goto fail_unlock_rcu;
9caf0364 7077 }
0e227084
JB		 7078
7079 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 7080 ies = rcu_dereference(res->beacon_ies);
0e227084 7081 if (ies && ies->from_beacon) {
2dad624e
ND		 7082 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7083 NL80211_BSS_PAD))
8cef2c9d
JB		 7084 goto fail_unlock_rcu;
7085 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7086 ies->len, ies->data))
7087 goto fail_unlock_rcu;
9caf0364
JB		 7088 }
7089 rcu_read_unlock();
7090
9360ffd1
DM		 7091 if (res->beacon_interval &&
7092 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7093 goto nla_put_failure;
7094 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7095 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 7096 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 7097 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7098 jiffies_to_msecs(jiffies - intbss->ts)))
7099 goto nla_put_failure;
2a519311 7100
1d76250b
AS		 7101 if (intbss->parent_tsf &&
7102 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7103 intbss->parent_tsf, NL80211_BSS_PAD) ||
7104 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7105 intbss->parent_bssid)))
7106 goto nla_put_failure;
7107
6e19bc4b 7108 if (intbss->ts_boottime &&
2dad624e
ND		 7109 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7110 intbss->ts_boottime, NL80211_BSS_PAD))
6e19bc4b
DS		 7111 goto nla_put_failure;
7112
77965c97 7113 switch (rdev->wiphy.signal_type) {
2a519311 7114 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 7115 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7116 goto nla_put_failure;
2a519311
JB		 7117 break;
7118 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 7119 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7120 goto nla_put_failure;
2a519311
JB		 7121 break;
7122 default:
7123 break;
7124 }
7125
48ab905d 7126 switch (wdev->iftype) {
074ac8df 7127 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 7128 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 7129 if (intbss == wdev->current_bss &&
7130 nla_put_u32(msg, NL80211_BSS_STATUS,
7131 NL80211_BSS_STATUS_ASSOCIATED))
7132 goto nla_put_failure;
48ab905d
JB		 7133 break;
7134 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 7135 if (intbss == wdev->current_bss &&
7136 nla_put_u32(msg, NL80211_BSS_STATUS,
7137 NL80211_BSS_STATUS_IBSS_JOINED))
7138 goto nla_put_failure;
48ab905d
JB		 7139 break;
7140 default:
7141 break;
7142 }
7143
2a519311
JB		 7144 nla_nest_end(msg, bss);
7145
053c095a
JB		 7146 genlmsg_end(msg, hdr);
7147 return 0;
2a519311 7148
8cef2c9d
JB		 7149 fail_unlock_rcu:
7150 rcu_read_unlock();
2a519311
JB		 7151 nla_put_failure:
7152 genlmsg_cancel(msg, hdr);
7153 return -EMSGSIZE;
7154}
7155
97990a06 7156static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 7157{
48ab905d 7158 struct cfg80211_registered_device *rdev;
2a519311 7159 struct cfg80211_internal_bss *scan;
48ab905d 7160 struct wireless_dev *wdev;
97990a06 7161 int start = cb->args[2], idx = 0;
2a519311
JB		 7162 int err;
7163
97990a06 7164 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7165 if (err)
7166 return err;
2a519311 7167
48ab905d
JB		 7168 wdev_lock(wdev);
7169 spin_lock_bh(&rdev->bss_lock);
7170 cfg80211_bss_expire(rdev);
7171
9720bb3a
JB		 7172 cb->seq = rdev->bss_generation;
7173
48ab905d 7174 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 7175 if (++idx <= start)
7176 continue;
9720bb3a 7177 if (nl80211_send_bss(skb, cb,
2a519311 7178 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 7179 rdev, wdev, scan) < 0) {
2a519311 7180 idx--;
67748893 7181 break;
2a519311
JB		 7182 }
7183 }
7184
48ab905d
JB		 7185 spin_unlock_bh(&rdev->bss_lock);
7186 wdev_unlock(wdev);
2a519311 7187
97990a06
JB		 7188 cb->args[2] = idx;
7189 nl80211_finish_wdev_dump(rdev);
2a519311 7190
67748893 7191 return skb->len;
2a519311
JB		 7192}
7193
15e47304 7194static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7195 int flags, struct net_device *dev,
7196 bool allow_radio_stats,
7197 struct survey_info *survey)
61fa713c
HS		 7198{
7199 void *hdr;
7200 struct nlattr *infoattr;
7201
11f78ac3
JB		 7202 /* skip radio stats if userspace didn't request them */
7203 if (!survey->channel && !allow_radio_stats)
7204 return 0;
7205
15e47304 7206 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7207 NL80211_CMD_NEW_SURVEY_RESULTS);
7208 if (!hdr)
7209 return -ENOMEM;
7210
9360ffd1
DM		 7211 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7212 goto nla_put_failure;
61fa713c
HS		 7213
7214 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7215 if (!infoattr)
7216 goto nla_put_failure;
7217
11f78ac3
JB		 7218 if (survey->channel &&
7219 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7220 survey->channel->center_freq))
7221 goto nla_put_failure;
7222
7223 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7224 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7225 goto nla_put_failure;
7226 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7227 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7228 goto nla_put_failure;
4ed20beb 7229 if ((survey->filled & SURVEY_INFO_TIME) &&
2dad624e
ND		 7230 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7231 survey->time, NL80211_SURVEY_INFO_PAD))
9360ffd1 7232 goto nla_put_failure;
4ed20beb 7233 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
2dad624e
ND		 7234 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7235 survey->time_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7236 goto nla_put_failure;
4ed20beb 7237 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
2dad624e
ND		 7238 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7239 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7240 goto nla_put_failure;
4ed20beb 7241 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
2dad624e
ND		 7242 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7243 survey->time_rx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7244 goto nla_put_failure;
4ed20beb 7245 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
2dad624e
ND		 7246 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7247 survey->time_tx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7248 goto nla_put_failure;
052536ab 7249 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
2dad624e
ND		 7250 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7251 survey->time_scan, NL80211_SURVEY_INFO_PAD))
052536ab 7252 goto nla_put_failure;
61fa713c
HS		 7253
7254 nla_nest_end(msg, infoattr);
7255
053c095a
JB		 7256 genlmsg_end(msg, hdr);
7257 return 0;
61fa713c
HS		 7258
7259 nla_put_failure:
7260 genlmsg_cancel(msg, hdr);
7261 return -EMSGSIZE;
7262}
7263
11f78ac3 7264static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 7265{
7266 struct survey_info survey;
1b8ec87a 7267 struct cfg80211_registered_device *rdev;
97990a06
JB		 7268 struct wireless_dev *wdev;
7269 int survey_idx = cb->args[2];
61fa713c 7270 int res;
11f78ac3 7271 bool radio_stats;
61fa713c 7272
1b8ec87a 7273 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7274 if (res)
7275 return res;
61fa713c 7276
11f78ac3
JB		 7277 /* prepare_wdev_dump parsed the attributes */
7278 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
7279
97990a06
JB		 7280 if (!wdev->netdev) {
7281 res = -EINVAL;
7282 goto out_err;
7283 }
7284
1b8ec87a 7285 if (!rdev->ops->dump_survey) {
61fa713c
HS		 7286 res = -EOPNOTSUPP;
7287 goto out_err;
7288 }
7289
7290 while (1) {
1b8ec87a 7291 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 7292 if (res == -ENOENT)
7293 break;
7294 if (res)
7295 goto out_err;
7296
11f78ac3
JB		 7297 /* don't send disabled channels, but do send non-channel data */
7298 if (survey.channel &&
7299 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 7300 survey_idx++;
7301 continue;
7302 }
7303
61fa713c 7304 if (nl80211_send_survey(skb,
15e47304 7305 NETLINK_CB(cb->skb).portid,
61fa713c 7306 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 7307 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 7308 goto out;
7309 survey_idx++;
7310 }
7311
7312 out:
97990a06 7313 cb->args[2] = survey_idx;
61fa713c
HS		 7314 res = skb->len;
7315 out_err:
1b8ec87a 7316 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 7317 return res;
7318}
7319
b23aa676
SO		 7320static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7321{
7322 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7323 NL80211_WPA_VERSION_2));
7324}
7325
636a5d36
JM		 7326static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7327{
4c476991
JB		 7328 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7329 struct net_device *dev = info->user_ptr[1];
19957bb3 7330 struct ieee80211_channel *chan;
e39e5b5e
JM		 7331 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7332 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 7333 enum nl80211_auth_type auth_type;
fffd0934 7334 struct key_parse key;
d5cdfacb 7335 bool local_state_change;
636a5d36 7336
f4a11bb0
JB		 7337 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7338 return -EINVAL;
7339
7340 if (!info->attrs[NL80211_ATTR_MAC])
7341 return -EINVAL;
7342
1778092e
JM		 7343 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7344 return -EINVAL;
7345
19957bb3
JB		 7346 if (!info->attrs[NL80211_ATTR_SSID])
7347 return -EINVAL;
7348
7349 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7350 return -EINVAL;
7351
fffd0934
JB		 7352 err = nl80211_parse_key(info, &key);
7353 if (err)
7354 return err;
7355
7356 if (key.idx >= 0) {
e31b8213
JB		 7357 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7358 return -EINVAL;
fffd0934
JB		 7359 if (!key.p.key || !key.p.key_len)
7360 return -EINVAL;
7361 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7362 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7363 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7364 key.p.key_len != WLAN_KEY_LEN_WEP104))
7365 return -EINVAL;
7366 if (key.idx > 4)
7367 return -EINVAL;
7368 } else {
7369 key.p.key_len = 0;
7370 key.p.key = NULL;
7371 }
7372
afea0b7a
JB		 7373 if (key.idx >= 0) {
7374 int i;
7375 bool ok = false;
7a087e74 7376
afea0b7a
JB		 7377 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7378 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7379 ok = true;
7380 break;
7381 }
7382 }
4c476991
JB		 7383 if (!ok)
7384 return -EINVAL;
afea0b7a
JB		 7385 }
7386
4c476991
JB		 7387 if (!rdev->ops->auth)
7388 return -EOPNOTSUPP;
636a5d36 7389
074ac8df 7390 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7391 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7392 return -EOPNOTSUPP;
eec60b03 7393
19957bb3 7394 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7395 chan = nl80211_get_valid_chan(&rdev->wiphy,
7396 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7397 if (!chan)
4c476991 7398 return -EINVAL;
636a5d36 7399
19957bb3
JB		 7400 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7401 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7402
7403 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7404 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7405 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7406 }
7407
19957bb3 7408 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7409 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7410 return -EINVAL;
636a5d36 7411
e39e5b5e
JM		 7412 if (auth_type == NL80211_AUTHTYPE_SAE &&
7413 !info->attrs[NL80211_ATTR_SAE_DATA])
7414 return -EINVAL;
7415
7416 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7417 if (auth_type != NL80211_AUTHTYPE_SAE)
7418 return -EINVAL;
7419 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7420 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7421 /* need to include at least Auth Transaction and Status Code */
7422 if (sae_data_len < 4)
7423 return -EINVAL;
7424 }
7425
d5cdfacb
JM		 7426 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7427
95de817b
JB		 7428 /*
7429 * Since we no longer track auth state, ignore
7430 * requests to only change local state.
7431 */
7432 if (local_state_change)
7433 return 0;
7434
91bf9b26
JB		 7435 wdev_lock(dev->ieee80211_ptr);
7436 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7437 ssid, ssid_len, ie, ie_len,
7438 key.p.key, key.p.key_len, key.idx,
7439 sae_data, sae_data_len);
7440 wdev_unlock(dev->ieee80211_ptr);
7441 return err;
636a5d36
JM		 7442}
7443
c0692b8f
JB		 7444static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7445 struct genl_info *info,
3dc27d25
JB		 7446 struct cfg80211_crypto_settings *settings,
7447 int cipher_limit)
b23aa676 7448{
c0b2bbd8
JB		 7449 memset(settings, 0, sizeof(*settings));
7450
b23aa676
SO		 7451 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7452
c0692b8f
JB		 7453 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7454 u16 proto;
7a087e74 7455
c0692b8f
JB		 7456 proto = nla_get_u16(
7457 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7458 settings->control_port_ethertype = cpu_to_be16(proto);
7459 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7460 proto != ETH_P_PAE)
7461 return -EINVAL;
7462 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7463 settings->control_port_no_encrypt = true;
7464 } else
7465 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7466
b23aa676
SO		 7467 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7468 void *data;
7469 int len, i;
7470
7471 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7472 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7473 settings->n_ciphers_pairwise = len / sizeof(u32);
7474
7475 if (len % sizeof(u32))
7476 return -EINVAL;
7477
3dc27d25 7478 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 7479 return -EINVAL;
7480
7481 memcpy(settings->ciphers_pairwise, data, len);
7482
7483 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 7484 if (!cfg80211_supported_cipher_suite(
7485 &rdev->wiphy,
b23aa676
SO		 7486 settings->ciphers_pairwise[i]))
7487 return -EINVAL;
7488 }
7489
7490 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7491 settings->cipher_group =
7492 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 7493 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7494 settings->cipher_group))
b23aa676
SO		 7495 return -EINVAL;
7496 }
7497
7498 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7499 settings->wpa_versions =
7500 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7501 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7502 return -EINVAL;
7503 }
7504
7505 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7506 void *data;
6d30240e 7507 int len;
b23aa676
SO		 7508
7509 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7510 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7511 settings->n_akm_suites = len / sizeof(u32);
7512
7513 if (len % sizeof(u32))
7514 return -EINVAL;
7515
1b9ca027
JM		 7516 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7517 return -EINVAL;
7518
b23aa676 7519 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 7520 }
7521
7522 return 0;
7523}
7524
636a5d36
JM		 7525static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7526{
4c476991
JB		 7527 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7528 struct net_device *dev = info->user_ptr[1];
f444de05 7529 struct ieee80211_channel *chan;
f62fab73
JB		 7530 struct cfg80211_assoc_request req = {};
7531 const u8 *bssid, *ssid;
7532 int err, ssid_len = 0;
636a5d36 7533
f4a11bb0
JB		 7534 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7535 return -EINVAL;
7536
7537 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7538 !info->attrs[NL80211_ATTR_SSID] ||
7539 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7540 return -EINVAL;
7541
4c476991
JB		 7542 if (!rdev->ops->assoc)
7543 return -EOPNOTSUPP;
636a5d36 7544
074ac8df 7545 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7546 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7547 return -EOPNOTSUPP;
eec60b03 7548
19957bb3 7549 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7550
664834de
JM		 7551 chan = nl80211_get_valid_chan(&rdev->wiphy,
7552 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7553 if (!chan)
4c476991 7554 return -EINVAL;
636a5d36 7555
19957bb3
JB		 7556 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7557 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7558
7559 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7560 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7561 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7562 }
7563
dc6382ce 7564 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7565 enum nl80211_mfp mfp =
dc6382ce 7566 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7567 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7568 req.use_mfp = true;
4c476991
JB		 7569 else if (mfp != NL80211_MFP_NO)
7570 return -EINVAL;
dc6382ce
JM		 7571 }
7572
3e5d7649 7573 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7574 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7575
7e7c8926 7576 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7577 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7578
7579 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7580 memcpy(&req.ht_capa_mask,
7581 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7582 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7583
7584 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7585 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7586 return -EINVAL;
f62fab73
JB		 7587 memcpy(&req.ht_capa,
7588 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7589 sizeof(req.ht_capa));
7e7c8926
BG		 7590 }
7591
ee2aca34 7592 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7593 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7594
7595 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7596 memcpy(&req.vht_capa_mask,
7597 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7598 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7599
7600 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7601 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7602 return -EINVAL;
f62fab73
JB		 7603 memcpy(&req.vht_capa,
7604 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7605 sizeof(req.vht_capa));
ee2aca34
JB		 7606 }
7607
bab5ab7d 7608 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 7609 if (!((rdev->wiphy.features &
7610 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
7611 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
7612 !wiphy_ext_feature_isset(&rdev->wiphy,
7613 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 7614 return -EINVAL;
7615 req.flags |= ASSOC_REQ_USE_RRM;
7616 }
7617
f62fab73 7618 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7619 if (!err) {
7620 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7621 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7622 ssid, ssid_len, &req);
91bf9b26
JB		 7623 wdev_unlock(dev->ieee80211_ptr);
7624 }
636a5d36 7625
636a5d36
JM		 7626 return err;
7627}
7628
7629static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7630{
4c476991
JB		 7631 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7632 struct net_device *dev = info->user_ptr[1];
19957bb3 7633 const u8 *ie = NULL, *bssid;
91bf9b26 7634 int ie_len = 0, err;
19957bb3 7635 u16 reason_code;
d5cdfacb 7636 bool local_state_change;
636a5d36 7637
f4a11bb0
JB		 7638 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7639 return -EINVAL;
7640
7641 if (!info->attrs[NL80211_ATTR_MAC])
7642 return -EINVAL;
7643
7644 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7645 return -EINVAL;
7646
4c476991
JB		 7647 if (!rdev->ops->deauth)
7648 return -EOPNOTSUPP;
636a5d36 7649
074ac8df 7650 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7651 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7652 return -EOPNOTSUPP;
eec60b03 7653
19957bb3 7654 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7655
19957bb3
JB		 7656 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7657 if (reason_code == 0) {
f4a11bb0 7658 /* Reason Code 0 is reserved */
4c476991 7659 return -EINVAL;
255e737e 7660 }
636a5d36
JM		 7661
7662 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7663 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7664 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7665 }
7666
d5cdfacb
JM		 7667 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7668
91bf9b26
JB		 7669 wdev_lock(dev->ieee80211_ptr);
7670 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7671 local_state_change);
7672 wdev_unlock(dev->ieee80211_ptr);
7673 return err;
636a5d36
JM		 7674}
7675
7676static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7677{
4c476991
JB		 7678 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7679 struct net_device *dev = info->user_ptr[1];
19957bb3 7680 const u8 *ie = NULL, *bssid;
91bf9b26 7681 int ie_len = 0, err;
19957bb3 7682 u16 reason_code;
d5cdfacb 7683 bool local_state_change;
636a5d36 7684
f4a11bb0
JB		 7685 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7686 return -EINVAL;
7687
7688 if (!info->attrs[NL80211_ATTR_MAC])
7689 return -EINVAL;
7690
7691 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7692 return -EINVAL;
7693
4c476991
JB		 7694 if (!rdev->ops->disassoc)
7695 return -EOPNOTSUPP;
636a5d36 7696
074ac8df 7697 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7698 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7699 return -EOPNOTSUPP;
eec60b03 7700
19957bb3 7701 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7702
19957bb3
JB		 7703 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7704 if (reason_code == 0) {
f4a11bb0 7705 /* Reason Code 0 is reserved */
4c476991 7706 return -EINVAL;
255e737e 7707 }
636a5d36
JM		 7708
7709 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7710 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7711 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7712 }
7713
d5cdfacb
JM		 7714 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7715
91bf9b26
JB		 7716 wdev_lock(dev->ieee80211_ptr);
7717 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7718 local_state_change);
7719 wdev_unlock(dev->ieee80211_ptr);
7720 return err;
636a5d36
JM		 7721}
7722
dd5b4cc7
FF		 7723static bool
7724nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
57fbcce3 7725 int mcast_rate[NUM_NL80211_BANDS],
dd5b4cc7
FF		 7726 int rateval)
7727{
7728 struct wiphy *wiphy = &rdev->wiphy;
7729 bool found = false;
7730 int band, i;
7731
57fbcce3 7732 for (band = 0; band < NUM_NL80211_BANDS; band++) {
dd5b4cc7
FF		 7733 struct ieee80211_supported_band *sband;
7734
7735 sband = wiphy->bands[band];
7736 if (!sband)
7737 continue;
7738
7739 for (i = 0; i < sband->n_bitrates; i++) {
7740 if (sband->bitrates[i].bitrate == rateval) {
7741 mcast_rate[band] = i + 1;
7742 found = true;
7743 break;
7744 }
7745 }
7746 }
7747
7748 return found;
7749}
7750
04a773ad
JB		 7751static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7752{
4c476991
JB		 7753 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7754 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7755 struct cfg80211_ibss_params ibss;
7756 struct wiphy *wiphy;
fffd0934 7757 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7758 int err;
7759
8e30bc55
JB		 7760 memset(&ibss, 0, sizeof(ibss));
7761
04a773ad
JB		 7762 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7763 return -EINVAL;
7764
683b6d3b 7765 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7766 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7767 return -EINVAL;
7768
8e30bc55
JB		 7769 ibss.beacon_interval = 100;
7770
7771 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7772 ibss.beacon_interval =
7773 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7774 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7775 return -EINVAL;
7776 }
7777
4c476991
JB		 7778 if (!rdev->ops->join_ibss)
7779 return -EOPNOTSUPP;
04a773ad 7780
4c476991
JB		 7781 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7782 return -EOPNOTSUPP;
04a773ad 7783
79c97e97 7784 wiphy = &rdev->wiphy;
04a773ad 7785
39193498 7786 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7787 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7788
7789 if (!is_valid_ether_addr(ibss.bssid))
7790 return -EINVAL;
7791 }
04a773ad
JB		 7792 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7793 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7794
7795 if (info->attrs[NL80211_ATTR_IE]) {
7796 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7797 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7798 }
7799
683b6d3b
JB		 7800 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7801 if (err)
7802 return err;
04a773ad 7803
174e0cd2
IP		 7804 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7805 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7806 return -EINVAL;
7807
2f301ab2 7808 switch (ibss.chandef.width) {
bf372645
SW		 7809 case NL80211_CHAN_WIDTH_5:
7810 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7811 case NL80211_CHAN_WIDTH_20_NOHT:
7812 break;
7813 case NL80211_CHAN_WIDTH_20:
7814 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 7815 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7816 return -EINVAL;
7817 break;
7818 case NL80211_CHAN_WIDTH_80:
7819 case NL80211_CHAN_WIDTH_80P80:
7820 case NL80211_CHAN_WIDTH_160:
7821 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7822 return -EINVAL;
7823 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7824 NL80211_EXT_FEATURE_VHT_IBSS))
7825 return -EINVAL;
7826 break;
2f301ab2 7827 default:
c04d6150 7828 return -EINVAL;
2f301ab2 7829 }
db9c64cf 7830
04a773ad 7831 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7832 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7833
fbd2c8dc
TP		 7834 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7835 u8 *rates =
7836 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7837 int n_rates =
7838 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7839 struct ieee80211_supported_band *sband =
683b6d3b 7840 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7841
34850ab2
JB		 7842 err = ieee80211_get_ratemask(sband, rates, n_rates,
7843 &ibss.basic_rates);
7844 if (err)
7845 return err;
fbd2c8dc 7846 }
dd5b4cc7 7847
803768f5
SW		 7848 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7849 memcpy(&ibss.ht_capa_mask,
7850 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7851 sizeof(ibss.ht_capa_mask));
7852
7853 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7854 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7855 return -EINVAL;
7856 memcpy(&ibss.ht_capa,
7857 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7858 sizeof(ibss.ht_capa));
7859 }
7860
dd5b4cc7
FF		 7861 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7862 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7863 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7864 return -EINVAL;
fbd2c8dc 7865
4c476991 7866 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7867 bool no_ht = false;
7868
4c476991 7869 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7870 info->attrs[NL80211_ATTR_KEYS],
7871 &no_ht);
4c476991
JB		 7872 if (IS_ERR(connkeys))
7873 return PTR_ERR(connkeys);
de7044ee 7874
3d9d1d66
JB		 7875 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7876 no_ht) {
5e950a78 7877 kzfree(connkeys);
de7044ee
SM		 7878 return -EINVAL;
7879 }
4c476991 7880 }
04a773ad 7881
267335d6
AQ		 7882 ibss.control_port =
7883 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7884
5336fa88
SW		 7885 ibss.userspace_handles_dfs =
7886 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7887
4c476991 7888 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7889 if (err)
b47f610b 7890 kzfree(connkeys);
04a773ad
JB		 7891 return err;
7892}
7893
7894static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7895{
4c476991
JB		 7896 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7897 struct net_device *dev = info->user_ptr[1];
04a773ad 7898
4c476991
JB		 7899 if (!rdev->ops->leave_ibss)
7900 return -EOPNOTSUPP;
04a773ad 7901
4c476991
JB		 7902 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7903 return -EOPNOTSUPP;
04a773ad 7904
4c476991 7905 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7906}
7907
f4e583c8
AQ		 7908static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7909{
7910 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7911 struct net_device *dev = info->user_ptr[1];
57fbcce3 7912 int mcast_rate[NUM_NL80211_BANDS];
f4e583c8
AQ		 7913 u32 nla_rate;
7914 int err;
7915
7916 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 7917 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7918 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 7919 return -EOPNOTSUPP;
7920
7921 if (!rdev->ops->set_mcast_rate)
7922 return -EOPNOTSUPP;
7923
7924 memset(mcast_rate, 0, sizeof(mcast_rate));
7925
7926 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7927 return -EINVAL;
7928
7929 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7930 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7931 return -EINVAL;
7932
a1056b1b 7933 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 7934
7935 return err;
7936}
7937
ad7e718c
JB		 7938static struct sk_buff *
7939__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 7940 struct wireless_dev *wdev, int approxlen,
7941 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 7942 enum nl80211_attrs attr,
7943 const struct nl80211_vendor_cmd_info *info,
7944 gfp_t gfp)
ad7e718c
JB		 7945{
7946 struct sk_buff *skb;
7947 void *hdr;
7948 struct nlattr *data;
7949
7950 skb = nlmsg_new(approxlen + 100, gfp);
7951 if (!skb)
7952 return NULL;
7953
7954 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7955 if (!hdr) {
7956 kfree_skb(skb);
7957 return NULL;
7958 }
7959
7960 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7961 goto nla_put_failure;
567ffc35
JB		 7962
7963 if (info) {
7964 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7965 info->vendor_id))
7966 goto nla_put_failure;
7967 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7968 info->subcmd))
7969 goto nla_put_failure;
7970 }
7971
6c09e791 7972 if (wdev) {
2dad624e
ND		 7973 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
7974 wdev_id(wdev), NL80211_ATTR_PAD))
6c09e791
AK		 7975 goto nla_put_failure;
7976 if (wdev->netdev &&
7977 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7978 wdev->netdev->ifindex))
7979 goto nla_put_failure;
7980 }
7981
ad7e718c
JB		 7982 data = nla_nest_start(skb, attr);
7983
7984 ((void **)skb->cb)[0] = rdev;
7985 ((void **)skb->cb)[1] = hdr;
7986 ((void **)skb->cb)[2] = data;
7987
7988 return skb;
7989
7990 nla_put_failure:
7991 kfree_skb(skb);
7992 return NULL;
7993}
f4e583c8 7994
e03ad6ea 7995struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 7996 struct wireless_dev *wdev,
e03ad6ea
JB		 7997 enum nl80211_commands cmd,
7998 enum nl80211_attrs attr,
7999 int vendor_event_idx,
8000 int approxlen, gfp_t gfp)
8001{
f26cbf40 8002 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 8003 const struct nl80211_vendor_cmd_info *info;
8004
8005 switch (cmd) {
8006 case NL80211_CMD_TESTMODE:
8007 if (WARN_ON(vendor_event_idx != -1))
8008 return NULL;
8009 info = NULL;
8010 break;
8011 case NL80211_CMD_VENDOR:
8012 if (WARN_ON(vendor_event_idx < 0 ||
8013 vendor_event_idx >= wiphy->n_vendor_events))
8014 return NULL;
8015 info = &wiphy->vendor_events[vendor_event_idx];
8016 break;
8017 default:
8018 WARN_ON(1);
8019 return NULL;
8020 }
8021
6c09e791 8022 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 8023 cmd, attr, info, gfp);
8024}
8025EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8026
8027void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8028{
8029 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8030 void *hdr = ((void **)skb->cb)[1];
8031 struct nlattr *data = ((void **)skb->cb)[2];
8032 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8033
bd8c78e7
JB		 8034 /* clear CB data for netlink core to own from now on */
8035 memset(skb->cb, 0, sizeof(skb->cb));
8036
e03ad6ea
JB		 8037 nla_nest_end(skb, data);
8038 genlmsg_end(skb, hdr);
8039
8040 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8041 mcgrp = NL80211_MCGRP_VENDOR;
8042
8043 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8044 mcgrp, gfp);
8045}
8046EXPORT_SYMBOL(__cfg80211_send_event_skb);
8047
aff89a9b 8048#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 8049static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8050{
4c476991 8051 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 8052 struct wireless_dev *wdev =
8053 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 8054 int err;
8055
fc73f11f
DS		 8056 if (!rdev->ops->testmode_cmd)
8057 return -EOPNOTSUPP;
8058
8059 if (IS_ERR(wdev)) {
8060 err = PTR_ERR(wdev);
8061 if (err != -EINVAL)
8062 return err;
8063 wdev = NULL;
8064 } else if (wdev->wiphy != &rdev->wiphy) {
8065 return -EINVAL;
8066 }
8067
aff89a9b
JB		 8068 if (!info->attrs[NL80211_ATTR_TESTDATA])
8069 return -EINVAL;
8070
ad7e718c 8071 rdev->cur_cmd_info = info;
fc73f11f 8072 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 8073 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8074 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 8075 rdev->cur_cmd_info = NULL;
aff89a9b 8076
aff89a9b
JB		 8077 return err;
8078}
8079
71063f0e
WYG		 8080static int nl80211_testmode_dump(struct sk_buff *skb,
8081 struct netlink_callback *cb)
8082{
00918d33 8083 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 8084 int err;
8085 long phy_idx;
8086 void *data = NULL;
8087 int data_len = 0;
8088
5fe231e8
JB		 8089 rtnl_lock();
8090
71063f0e
WYG		 8091 if (cb->args[0]) {
8092 /*
8093 * 0 is a valid index, but not valid for args[0],
8094 * so we need to offset by 1.
8095 */
8096 phy_idx = cb->args[0] - 1;
8097 } else {
8098 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
8099 nl80211_fam.attrbuf, nl80211_fam.maxattr,
8100 nl80211_policy);
8101 if (err)
5fe231e8 8102 goto out_err;
00918d33 8103
2bd7e35d
JB		 8104 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
8105 nl80211_fam.attrbuf);
8106 if (IS_ERR(rdev)) {
5fe231e8
JB		 8107 err = PTR_ERR(rdev);
8108 goto out_err;
00918d33 8109 }
2bd7e35d
JB		 8110 phy_idx = rdev->wiphy_idx;
8111 rdev = NULL;
2bd7e35d 8112
71063f0e
WYG		 8113 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
8114 cb->args[1] =
8115 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
8116 }
8117
8118 if (cb->args[1]) {
8119 data = nla_data((void *)cb->args[1]);
8120 data_len = nla_len((void *)cb->args[1]);
8121 }
8122
00918d33
JB		 8123 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8124 if (!rdev) {
5fe231e8
JB		 8125 err = -ENOENT;
8126 goto out_err;
71063f0e 8127 }
71063f0e 8128
00918d33 8129 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 8130 err = -EOPNOTSUPP;
8131 goto out_err;
8132 }
8133
8134 while (1) {
15e47304 8135 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 8136 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8137 NL80211_CMD_TESTMODE);
8138 struct nlattr *tmdata;
8139
cb35fba3
DC		 8140 if (!hdr)
8141 break;
8142
9360ffd1 8143 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 8144 genlmsg_cancel(skb, hdr);
8145 break;
8146 }
8147
8148 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8149 if (!tmdata) {
8150 genlmsg_cancel(skb, hdr);
8151 break;
8152 }
e35e4d28 8153 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 8154 nla_nest_end(skb, tmdata);
8155
8156 if (err == -ENOBUFS || err == -ENOENT) {
8157 genlmsg_cancel(skb, hdr);
8158 break;
8159 } else if (err) {
8160 genlmsg_cancel(skb, hdr);
8161 goto out_err;
8162 }
8163
8164 genlmsg_end(skb, hdr);
8165 }
8166
8167 err = skb->len;
8168 /* see above */
8169 cb->args[0] = phy_idx + 1;
8170 out_err:
5fe231e8 8171 rtnl_unlock();
71063f0e
WYG		 8172 return err;
8173}
aff89a9b
JB		 8174#endif
8175
b23aa676
SO		 8176static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8177{
4c476991
JB		 8178 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8179 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 8180 struct cfg80211_connect_params connect;
8181 struct wiphy *wiphy;
fffd0934 8182 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 8183 int err;
8184
8185 memset(&connect, 0, sizeof(connect));
8186
8187 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8188 return -EINVAL;
8189
8190 if (!info->attrs[NL80211_ATTR_SSID] ||
8191 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8192 return -EINVAL;
8193
8194 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8195 connect.auth_type =
8196 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8197 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8198 NL80211_CMD_CONNECT))
b23aa676
SO		 8199 return -EINVAL;
8200 } else
8201 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8202
8203 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8204
c0692b8f 8205 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8206 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8207 if (err)
8208 return err;
b23aa676 8209
074ac8df 8210 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8211 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8212 return -EOPNOTSUPP;
b23aa676 8213
79c97e97 8214 wiphy = &rdev->wiphy;
b23aa676 8215
4486ea98
BS		 8216 connect.bg_scan_period = -1;
8217 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8218 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8219 connect.bg_scan_period =
8220 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8221 }
8222
b23aa676
SO		 8223 if (info->attrs[NL80211_ATTR_MAC])
8224 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8225 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8226 connect.bssid_hint =
8227 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8228 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8229 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8230
8231 if (info->attrs[NL80211_ATTR_IE]) {
8232 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8233 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8234 }
8235
cee00a95
JM		 8236 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8237 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8238 if (connect.mfp != NL80211_MFP_REQUIRED &&
8239 connect.mfp != NL80211_MFP_NO)
8240 return -EINVAL;
8241 } else {
8242 connect.mfp = NL80211_MFP_NO;
8243 }
8244
ba6fbacf
JM		 8245 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8246 connect.prev_bssid =
8247 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8248
b23aa676 8249 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 8250 connect.channel = nl80211_get_valid_chan(
8251 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8252 if (!connect.channel)
1df4a510
JM		 8253 return -EINVAL;
8254 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 8255 connect.channel_hint = nl80211_get_valid_chan(
8256 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8257 if (!connect.channel_hint)
4c476991 8258 return -EINVAL;
b23aa676
SO		 8259 }
8260
fffd0934
JB		 8261 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8262 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 8263 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 8264 if (IS_ERR(connkeys))
8265 return PTR_ERR(connkeys);
fffd0934
JB		 8266 }
8267
7e7c8926
BG		 8268 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8269 connect.flags |= ASSOC_REQ_DISABLE_HT;
8270
8271 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8272 memcpy(&connect.ht_capa_mask,
8273 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8274 sizeof(connect.ht_capa_mask));
8275
8276 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 8277 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 8278 kzfree(connkeys);
7e7c8926 8279 return -EINVAL;
b4e4f47e 8280 }
7e7c8926
BG		 8281 memcpy(&connect.ht_capa,
8282 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8283 sizeof(connect.ht_capa));
8284 }
8285
ee2aca34
JB		 8286 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8287 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8288
8289 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8290 memcpy(&connect.vht_capa_mask,
8291 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8292 sizeof(connect.vht_capa_mask));
8293
8294 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8295 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 8296 kzfree(connkeys);
ee2aca34
JB		 8297 return -EINVAL;
8298 }
8299 memcpy(&connect.vht_capa,
8300 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8301 sizeof(connect.vht_capa));
8302 }
8303
bab5ab7d 8304 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8305 if (!((rdev->wiphy.features &
8306 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8307 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8308 !wiphy_ext_feature_isset(&rdev->wiphy,
8309 NL80211_EXT_FEATURE_RRM)) {
707554b4 8310 kzfree(connkeys);
bab5ab7d 8311 return -EINVAL;
707554b4 8312 }
bab5ab7d
AK		 8313 connect.flags |= ASSOC_REQ_USE_RRM;
8314 }
8315
34d50519 8316 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 8317 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
34d50519
LD		 8318 kzfree(connkeys);
8319 return -EOPNOTSUPP;
8320 }
8321
38de03d2
AS		 8322 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8323 /* bss selection makes no sense if bssid is set */
8324 if (connect.bssid) {
8325 kzfree(connkeys);
8326 return -EINVAL;
8327 }
8328
8329 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8330 wiphy, &connect.bss_select);
8331 if (err) {
8332 kzfree(connkeys);
8333 return err;
8334 }
8335 }
8336
83739b03 8337 wdev_lock(dev->ieee80211_ptr);
4ce2bd9c
JM		 8338 err = cfg80211_connect(rdev, dev, &connect, connkeys,
8339 connect.prev_bssid);
83739b03 8340 wdev_unlock(dev->ieee80211_ptr);
fffd0934 8341 if (err)
b47f610b 8342 kzfree(connkeys);
b23aa676
SO		 8343 return err;
8344}
8345
8346static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8347{
4c476991
JB		 8348 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8349 struct net_device *dev = info->user_ptr[1];
b23aa676 8350 u16 reason;
83739b03 8351 int ret;
b23aa676
SO		 8352
8353 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8354 reason = WLAN_REASON_DEAUTH_LEAVING;
8355 else
8356 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8357
8358 if (reason == 0)
8359 return -EINVAL;
8360
074ac8df 8361 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8362 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8363 return -EOPNOTSUPP;
b23aa676 8364
83739b03
JB		 8365 wdev_lock(dev->ieee80211_ptr);
8366 ret = cfg80211_disconnect(rdev, dev, reason, true);
8367 wdev_unlock(dev->ieee80211_ptr);
8368 return ret;
b23aa676
SO		 8369}
8370
463d0183
JB		 8371static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8372{
4c476991 8373 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 8374 struct net *net;
8375 int err;
463d0183 8376
4b681c82
VK		 8377 if (info->attrs[NL80211_ATTR_PID]) {
8378 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8379
8380 net = get_net_ns_by_pid(pid);
8381 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8382 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 8383
4b681c82
VK		 8384 net = get_net_ns_by_fd(fd);
8385 } else {
8386 return -EINVAL;
8387 }
463d0183 8388
4c476991
JB		 8389 if (IS_ERR(net))
8390 return PTR_ERR(net);
463d0183
JB		 8391
8392 err = 0;
8393
8394 /* check if anything to do */
4c476991
JB		 8395 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8396 err = cfg80211_switch_netns(rdev, net);
463d0183 8397
463d0183 8398 put_net(net);
463d0183
JB		 8399 return err;
8400}
8401
67fbb16b
SO		 8402static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8403{
4c476991 8404 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 8405 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8406 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 8407 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 8408 struct cfg80211_pmksa pmksa;
8409
8410 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8411
8412 if (!info->attrs[NL80211_ATTR_MAC])
8413 return -EINVAL;
8414
8415 if (!info->attrs[NL80211_ATTR_PMKID])
8416 return -EINVAL;
8417
67fbb16b
SO		 8418 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8419 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8420
074ac8df 8421 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8422 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8423 return -EOPNOTSUPP;
67fbb16b
SO		 8424
8425 switch (info->genlhdr->cmd) {
8426 case NL80211_CMD_SET_PMKSA:
8427 rdev_ops = rdev->ops->set_pmksa;
8428 break;
8429 case NL80211_CMD_DEL_PMKSA:
8430 rdev_ops = rdev->ops->del_pmksa;
8431 break;
8432 default:
8433 WARN_ON(1);
8434 break;
8435 }
8436
4c476991
JB		 8437 if (!rdev_ops)
8438 return -EOPNOTSUPP;
67fbb16b 8439
4c476991 8440 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 8441}
8442
8443static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8444{
4c476991
JB		 8445 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8446 struct net_device *dev = info->user_ptr[1];
67fbb16b 8447
074ac8df 8448 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8449 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8450 return -EOPNOTSUPP;
67fbb16b 8451
4c476991
JB		 8452 if (!rdev->ops->flush_pmksa)
8453 return -EOPNOTSUPP;
67fbb16b 8454
e35e4d28 8455 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 8456}
8457
109086ce
AN		 8458static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8459{
8460 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8461 struct net_device *dev = info->user_ptr[1];
8462 u8 action_code, dialog_token;
df942e7b 8463 u32 peer_capability = 0;
109086ce
AN		 8464 u16 status_code;
8465 u8 *peer;
31fa97c5 8466 bool initiator;
109086ce
AN		 8467
8468 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8469 !rdev->ops->tdls_mgmt)
8470 return -EOPNOTSUPP;
8471
8472 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8473 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8474 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8475 !info->attrs[NL80211_ATTR_IE] ||
8476 !info->attrs[NL80211_ATTR_MAC])
8477 return -EINVAL;
8478
8479 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8480 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8481 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8482 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 8483 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 8484 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8485 peer_capability =
8486 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 8487
e35e4d28 8488 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 8489 dialog_token, status_code, peer_capability,
31fa97c5 8490 initiator,
e35e4d28
HG		 8491 nla_data(info->attrs[NL80211_ATTR_IE]),
8492 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 8493}
8494
8495static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8496{
8497 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8498 struct net_device *dev = info->user_ptr[1];
8499 enum nl80211_tdls_operation operation;
8500 u8 *peer;
8501
8502 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8503 !rdev->ops->tdls_oper)
8504 return -EOPNOTSUPP;
8505
8506 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8507 !info->attrs[NL80211_ATTR_MAC])
8508 return -EINVAL;
8509
8510 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8511 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8512
e35e4d28 8513 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 8514}
8515
9588bbd5
JM		 8516static int nl80211_remain_on_channel(struct sk_buff *skb,
8517 struct genl_info *info)
8518{
4c476991 8519 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8520 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8521 struct cfg80211_chan_def chandef;
9588bbd5
JM		 8522 struct sk_buff *msg;
8523 void *hdr;
8524 u64 cookie;
683b6d3b 8525 u32 duration;
9588bbd5
JM		 8526 int err;
8527
8528 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8529 !info->attrs[NL80211_ATTR_DURATION])
8530 return -EINVAL;
8531
8532 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8533
ebf348fc
JB		 8534 if (!rdev->ops->remain_on_channel ||
8535 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8536 return -EOPNOTSUPP;
8537
9588bbd5 8538 /*
ebf348fc
JB		 8539 * We should be on that channel for at least a minimum amount of
8540 * time (10ms) but no longer than the driver supports.
9588bbd5 8541 */
ebf348fc 8542 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 8543 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 8544 return -EINVAL;
8545
683b6d3b
JB		 8546 err = nl80211_parse_chandef(rdev, info, &chandef);
8547 if (err)
8548 return err;
9588bbd5
JM		 8549
8550 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8551 if (!msg)
8552 return -ENOMEM;
9588bbd5 8553
15e47304 8554 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 8555 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 8556 if (!hdr) {
8557 err = -ENOBUFS;
9588bbd5
JM		 8558 goto free_msg;
8559 }
8560
683b6d3b
JB		 8561 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8562 duration, &cookie);
9588bbd5
JM		 8563
8564 if (err)
8565 goto free_msg;
8566
2dad624e
ND		 8567 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
8568 NL80211_ATTR_PAD))
9360ffd1 8569 goto nla_put_failure;
9588bbd5
JM		 8570
8571 genlmsg_end(msg, hdr);
4c476991
JB		 8572
8573 return genlmsg_reply(msg, info);
9588bbd5
JM		 8574
8575 nla_put_failure:
8576 err = -ENOBUFS;
8577 free_msg:
8578 nlmsg_free(msg);
9588bbd5
JM		 8579 return err;
8580}
8581
8582static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8583 struct genl_info *info)
8584{
4c476991 8585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8586 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8587 u64 cookie;
9588bbd5
JM		 8588
8589 if (!info->attrs[NL80211_ATTR_COOKIE])
8590 return -EINVAL;
8591
4c476991
JB		 8592 if (!rdev->ops->cancel_remain_on_channel)
8593 return -EOPNOTSUPP;
9588bbd5 8594
9588bbd5
JM		 8595 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8596
e35e4d28 8597 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8598}
8599
13ae75b1
JM		 8600static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8601 u8 *rates, u8 rates_len)
8602{
8603 u8 i;
8604 u32 mask = 0;
8605
8606 for (i = 0; i < rates_len; i++) {
8607 int rate = (rates[i] & 0x7f) * 5;
8608 int ridx;
7a087e74 8609
13ae75b1
JM		 8610 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8611 struct ieee80211_rate *srate =
8612 &sband->bitrates[ridx];
8613 if (rate == srate->bitrate) {
8614 mask |= 1 << ridx;
8615 break;
8616 }
8617 }
8618 if (ridx == sband->n_bitrates)
8619 return 0; /* rate not found */
8620 }
8621
8622 return mask;
8623}
8624
24db78c0
SW		 8625static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8626 u8 *rates, u8 rates_len,
8627 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8628{
8629 u8 i;
8630
8631 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8632
8633 for (i = 0; i < rates_len; i++) {
8634 int ridx, rbit;
8635
8636 ridx = rates[i] / 8;
8637 rbit = BIT(rates[i] % 8);
8638
8639 /* check validity */
910570b5 8640 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8641 return false;
8642
8643 /* check availability */
8644 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8645 mcs[ridx] |= rbit;
8646 else
8647 return false;
8648 }
8649
8650 return true;
8651}
8652
204e35a9
JD		 8653static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8654{
8655 u16 mcs_mask = 0;
8656
8657 switch (vht_mcs_map) {
8658 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8659 break;
8660 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8661 mcs_mask = 0x00FF;
8662 break;
8663 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8664 mcs_mask = 0x01FF;
8665 break;
8666 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8667 mcs_mask = 0x03FF;
8668 break;
8669 default:
8670 break;
8671 }
8672
8673 return mcs_mask;
8674}
8675
8676static void vht_build_mcs_mask(u16 vht_mcs_map,
8677 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8678{
8679 u8 nss;
8680
8681 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8682 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8683 vht_mcs_map >>= 2;
8684 }
8685}
8686
8687static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8688 struct nl80211_txrate_vht *txrate,
8689 u16 mcs[NL80211_VHT_NSS_MAX])
8690{
8691 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8692 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8693 u8 i;
8694
8695 if (!sband->vht_cap.vht_supported)
8696 return false;
8697
8698 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8699
8700 /* Build vht_mcs_mask from VHT capabilities */
8701 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8702
8703 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8704 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8705 mcs[i] = txrate->mcs[i];
8706 else
8707 return false;
8708 }
8709
8710 return true;
8711}
8712
b54452b0 8713static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8714 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8715 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8716 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8717 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8718 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8719 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8720};
8721
8722static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8723 struct genl_info *info)
8724{
8725 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8726 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8727 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8728 int rem, i;
8729 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8730 struct nlattr *tx_rates;
8731 struct ieee80211_supported_band *sband;
204e35a9 8732 u16 vht_tx_mcs_map;
13ae75b1 8733
4c476991
JB		 8734 if (!rdev->ops->set_bitrate_mask)
8735 return -EOPNOTSUPP;
13ae75b1
JM		 8736
8737 memset(&mask, 0, sizeof(mask));
8738 /* Default to all rates enabled */
57fbcce3 8739 for (i = 0; i < NUM_NL80211_BANDS; i++) {
13ae75b1 8740 sband = rdev->wiphy.bands[i];
7869303b
JD		 8741
8742 if (!sband)
8743 continue;
8744
8745 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8746 memcpy(mask.control[i].ht_mcs,
7869303b 8747 sband->ht_cap.mcs.rx_mask,
d1e33e65 8748 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8749
8750 if (!sband->vht_cap.vht_supported)
8751 continue;
8752
8753 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8754 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8755 }
8756
b9243ab0
JD		 8757 /* if no rates are given set it back to the defaults */
8758 if (!info->attrs[NL80211_ATTR_TX_RATES])
8759 goto out;
8760
13ae75b1
JM		 8761 /*
8762 * The nested attribute uses enum nl80211_band as the index. This maps
57fbcce3 8763 * directly to the enum nl80211_band values used in cfg80211.
13ae75b1 8764 */
24db78c0 8765 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8766 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
57fbcce3 8767 enum nl80211_band band = nla_type(tx_rates);
ae811e21
JB		 8768 int err;
8769
57fbcce3 8770 if (band < 0 || band >= NUM_NL80211_BANDS)
4c476991 8771 return -EINVAL;
13ae75b1 8772 sband = rdev->wiphy.bands[band];
4c476991
JB		 8773 if (sband == NULL)
8774 return -EINVAL;
ae811e21
JB		 8775 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8776 nla_len(tx_rates), nl80211_txattr_policy);
8777 if (err)
8778 return err;
13ae75b1
JM		 8779 if (tb[NL80211_TXRATE_LEGACY]) {
8780 mask.control[band].legacy = rateset_to_mask(
8781 sband,
8782 nla_data(tb[NL80211_TXRATE_LEGACY]),
8783 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8784 if ((mask.control[band].legacy == 0) &&
8785 nla_len(tb[NL80211_TXRATE_LEGACY]))
8786 return -EINVAL;
24db78c0 8787 }
d1e33e65 8788 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8789 if (!ht_rateset_to_mask(
8790 sband,
d1e33e65
JD		 8791 nla_data(tb[NL80211_TXRATE_HT]),
8792 nla_len(tb[NL80211_TXRATE_HT]),
8793 mask.control[band].ht_mcs))
24db78c0
SW		 8794 return -EINVAL;
8795 }
204e35a9
JD		 8796 if (tb[NL80211_TXRATE_VHT]) {
8797 if (!vht_set_mcs_mask(
8798 sband,
8799 nla_data(tb[NL80211_TXRATE_VHT]),
8800 mask.control[band].vht_mcs))
8801 return -EINVAL;
8802 }
0b9323f6
JD		 8803 if (tb[NL80211_TXRATE_GI]) {
8804 mask.control[band].gi =
8805 nla_get_u8(tb[NL80211_TXRATE_GI]);
8806 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8807 return -EINVAL;
8808 }
24db78c0
SW		 8809
8810 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8811 /* don't allow empty legacy rates if HT or VHT
8812 * are not even supported.
8813 */
8814 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8815 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8816 return -EINVAL;
8817
8818 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8819 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8820 goto out;
8821
8822 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8823 if (mask.control[band].vht_mcs[i])
8824 goto out;
24db78c0
SW		 8825
8826 /* legacy and mcs rates may not be both empty */
204e35a9 8827 return -EINVAL;
13ae75b1
JM		 8828 }
8829 }
8830
b9243ab0 8831out:
e35e4d28 8832 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8833}
8834
2e161f78 8835static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8836{
4c476991 8837 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8838 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8839 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8840
8841 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8842 return -EINVAL;
8843
2e161f78
JB		 8844 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8845 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8846
71bbc994
JB		 8847 switch (wdev->iftype) {
8848 case NL80211_IFTYPE_STATION:
8849 case NL80211_IFTYPE_ADHOC:
8850 case NL80211_IFTYPE_P2P_CLIENT:
8851 case NL80211_IFTYPE_AP:
8852 case NL80211_IFTYPE_AP_VLAN:
8853 case NL80211_IFTYPE_MESH_POINT:
8854 case NL80211_IFTYPE_P2P_GO:
98104fde 8855 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8856 break;
8857 default:
4c476991 8858 return -EOPNOTSUPP;
71bbc994 8859 }
026331c4
JM		 8860
8861 /* not much point in registering if we can't reply */
4c476991
JB		 8862 if (!rdev->ops->mgmt_tx)
8863 return -EOPNOTSUPP;
026331c4 8864
15e47304 8865 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8866 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8867 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8868}
8869
2e161f78 8870static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8871{
4c476991 8872 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8873 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8874 struct cfg80211_chan_def chandef;
026331c4 8875 int err;
d64d373f 8876 void *hdr = NULL;
026331c4 8877 u64 cookie;
e247bd90 8878 struct sk_buff *msg = NULL;
b176e629
AO		 8879 struct cfg80211_mgmt_tx_params params = {
8880 .dont_wait_for_ack =
8881 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8882 };
026331c4 8883
683b6d3b 8884 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8885 return -EINVAL;
8886
4c476991
JB		 8887 if (!rdev->ops->mgmt_tx)
8888 return -EOPNOTSUPP;
026331c4 8889
71bbc994 8890 switch (wdev->iftype) {
ea141b75
AQ		 8891 case NL80211_IFTYPE_P2P_DEVICE:
8892 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8893 return -EINVAL;
71bbc994
JB		 8894 case NL80211_IFTYPE_STATION:
8895 case NL80211_IFTYPE_ADHOC:
8896 case NL80211_IFTYPE_P2P_CLIENT:
8897 case NL80211_IFTYPE_AP:
8898 case NL80211_IFTYPE_AP_VLAN:
8899 case NL80211_IFTYPE_MESH_POINT:
8900 case NL80211_IFTYPE_P2P_GO:
8901 break;
8902 default:
4c476991 8903 return -EOPNOTSUPP;
71bbc994 8904 }
026331c4 8905
f7ca38df 8906 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8907 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8908 return -EINVAL;
b176e629 8909 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8910
8911 /*
8912 * We should wait on the channel for at least a minimum amount
8913 * of time (10ms) but no longer than the driver supports.
8914 */
b176e629
AO		 8915 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8916 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc 8917 return -EINVAL;
f7ca38df
JB		 8918 }
8919
b176e629 8920 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8921
b176e629 8922 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8923 return -EINVAL;
8924
b176e629 8925 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8926
ea141b75
AQ		 8927 /* get the channel if any has been specified, otherwise pass NULL to
8928 * the driver. The latter will use the current one
8929 */
8930 chandef.chan = NULL;
8931 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8932 err = nl80211_parse_chandef(rdev, info, &chandef);
8933 if (err)
8934 return err;
8935 }
8936
b176e629 8937 if (!chandef.chan && params.offchan)
ea141b75 8938 return -EINVAL;
026331c4 8939
34d22ce2
AO		 8940 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8941 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8942
8943 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8944 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8945 int i;
8946
8947 if (len % sizeof(u16))
8948 return -EINVAL;
8949
8950 params.n_csa_offsets = len / sizeof(u16);
8951 params.csa_offsets =
8952 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8953
8954 /* check that all the offsets fit the frame */
8955 for (i = 0; i < params.n_csa_offsets; i++) {
8956 if (params.csa_offsets[i] >= params.len)
8957 return -EINVAL;
8958 }
8959 }
8960
b176e629 8961 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8962 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8963 if (!msg)
8964 return -ENOMEM;
026331c4 8965
15e47304 8966 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8967 NL80211_CMD_FRAME);
cb35fba3
DC		 8968 if (!hdr) {
8969 err = -ENOBUFS;
e247bd90
JB		 8970 goto free_msg;
8971 }
026331c4 8972 }
e247bd90 8973
b176e629
AO		 8974 params.chan = chandef.chan;
8975 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8976 if (err)
8977 goto free_msg;
8978
e247bd90 8979 if (msg) {
2dad624e
ND		 8980 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
8981 NL80211_ATTR_PAD))
9360ffd1 8982 goto nla_put_failure;
026331c4 8983
e247bd90
JB		 8984 genlmsg_end(msg, hdr);
8985 return genlmsg_reply(msg, info);
8986 }
8987
8988 return 0;
026331c4
JM		 8989
8990 nla_put_failure:
8991 err = -ENOBUFS;
8992 free_msg:
8993 nlmsg_free(msg);
026331c4
JM		 8994 return err;
8995}
8996
f7ca38df
JB		 8997static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8998{
8999 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 9000 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 9001 u64 cookie;
9002
9003 if (!info->attrs[NL80211_ATTR_COOKIE])
9004 return -EINVAL;
9005
9006 if (!rdev->ops->mgmt_tx_cancel_wait)
9007 return -EOPNOTSUPP;
9008
71bbc994
JB		 9009 switch (wdev->iftype) {
9010 case NL80211_IFTYPE_STATION:
9011 case NL80211_IFTYPE_ADHOC:
9012 case NL80211_IFTYPE_P2P_CLIENT:
9013 case NL80211_IFTYPE_AP:
9014 case NL80211_IFTYPE_AP_VLAN:
9015 case NL80211_IFTYPE_P2P_GO:
98104fde 9016 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 9017 break;
9018 default:
f7ca38df 9019 return -EOPNOTSUPP;
71bbc994 9020 }
f7ca38df
JB		 9021
9022 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9023
e35e4d28 9024 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 9025}
9026
ffb9eb3d
KV		 9027static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9028{
4c476991 9029 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 9030 struct wireless_dev *wdev;
4c476991 9031 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9032 u8 ps_state;
9033 bool state;
9034 int err;
9035
4c476991
JB		 9036 if (!info->attrs[NL80211_ATTR_PS_STATE])
9037 return -EINVAL;
ffb9eb3d
KV		 9038
9039 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9040
4c476991
JB		 9041 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9042 return -EINVAL;
ffb9eb3d
KV		 9043
9044 wdev = dev->ieee80211_ptr;
9045
4c476991
JB		 9046 if (!rdev->ops->set_power_mgmt)
9047 return -EOPNOTSUPP;
ffb9eb3d
KV		 9048
9049 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9050
9051 if (state == wdev->ps)
4c476991 9052 return 0;
ffb9eb3d 9053
e35e4d28 9054 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 9055 if (!err)
9056 wdev->ps = state;
ffb9eb3d
KV		 9057 return err;
9058}
9059
9060static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9061{
4c476991 9062 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 9063 enum nl80211_ps_state ps_state;
9064 struct wireless_dev *wdev;
4c476991 9065 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9066 struct sk_buff *msg;
9067 void *hdr;
9068 int err;
9069
ffb9eb3d
KV		 9070 wdev = dev->ieee80211_ptr;
9071
4c476991
JB		 9072 if (!rdev->ops->set_power_mgmt)
9073 return -EOPNOTSUPP;
ffb9eb3d
KV		 9074
9075 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9076 if (!msg)
9077 return -ENOMEM;
ffb9eb3d 9078
15e47304 9079 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 9080 NL80211_CMD_GET_POWER_SAVE);
9081 if (!hdr) {
4c476991 9082 err = -ENOBUFS;
ffb9eb3d
KV		 9083 goto free_msg;
9084 }
9085
9086 if (wdev->ps)
9087 ps_state = NL80211_PS_ENABLED;
9088 else
9089 ps_state = NL80211_PS_DISABLED;
9090
9360ffd1
DM		 9091 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9092 goto nla_put_failure;
ffb9eb3d
KV		 9093
9094 genlmsg_end(msg, hdr);
4c476991 9095 return genlmsg_reply(msg, info);
ffb9eb3d 9096
4c476991 9097 nla_put_failure:
ffb9eb3d 9098 err = -ENOBUFS;
4c476991 9099 free_msg:
ffb9eb3d 9100 nlmsg_free(msg);
ffb9eb3d
KV		 9101 return err;
9102}
9103
94e860f1
JB		 9104static const struct nla_policy
9105nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 9106 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
9107 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9108 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 9109 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9110 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9111 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 9112};
9113
84f10708 9114static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 9115 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 9116{
9117 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 9118 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9119 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 9120
d9d8b019 9121 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 9122 return -EINVAL;
9123
84f10708
TP		 9124 if (!rdev->ops->set_cqm_txe_config)
9125 return -EOPNOTSUPP;
9126
9127 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9128 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9129 return -EOPNOTSUPP;
9130
e35e4d28 9131 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 9132}
9133
d6dc1a38
JO		 9134static int nl80211_set_cqm_rssi(struct genl_info *info,
9135 s32 threshold, u32 hysteresis)
9136{
4c476991 9137 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9138 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9139 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 9140
9141 if (threshold > 0)
9142 return -EINVAL;
9143
1da5fcc8
JB		 9144 /* disabling - hysteresis should also be zero then */
9145 if (threshold == 0)
9146 hysteresis = 0;
d6dc1a38 9147
4c476991
JB		 9148 if (!rdev->ops->set_cqm_rssi_config)
9149 return -EOPNOTSUPP;
d6dc1a38 9150
074ac8df 9151 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9152 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9153 return -EOPNOTSUPP;
d6dc1a38 9154
e35e4d28 9155 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 9156}
9157
9158static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9159{
9160 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9161 struct nlattr *cqm;
9162 int err;
9163
9164 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 9165 if (!cqm)
9166 return -EINVAL;
d6dc1a38
JO		 9167
9168 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
9169 nl80211_attr_cqm_policy);
9170 if (err)
1da5fcc8 9171 return err;
d6dc1a38
JO		 9172
9173 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9174 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 9175 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9176 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 9177
1da5fcc8
JB		 9178 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
9179 }
9180
9181 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9182 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9183 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9184 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9185 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9186 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9187
9188 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9189 }
9190
9191 return -EINVAL;
d6dc1a38
JO		 9192}
9193
6e0bd6c3
RL		 9194static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9195{
9196 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9197 struct net_device *dev = info->user_ptr[1];
9198 struct ocb_setup setup = {};
9199 int err;
9200
9201 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9202 if (err)
9203 return err;
9204
9205 return cfg80211_join_ocb(rdev, dev, &setup);
9206}
9207
9208static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9209{
9210 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9211 struct net_device *dev = info->user_ptr[1];
9212
9213 return cfg80211_leave_ocb(rdev, dev);
9214}
9215
29cbe68c
JB		 9216static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9217{
9218 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9219 struct net_device *dev = info->user_ptr[1];
9220 struct mesh_config cfg;
c80d545d 9221 struct mesh_setup setup;
29cbe68c
JB		 9222 int err;
9223
9224 /* start with default */
9225 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9226 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9227
24bdd9f4 9228 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9229 /* and parse parameters if given */
24bdd9f4 9230 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9231 if (err)
9232 return err;
9233 }
9234
9235 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9236 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9237 return -EINVAL;
9238
c80d545d
JC		 9239 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9240 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9241
4bb62344
CYY		 9242 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9243 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9244 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9245 return -EINVAL;
9246
9bdbf04d
MP		 9247 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9248 setup.beacon_interval =
9249 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
9250 if (setup.beacon_interval < 10 ||
9251 setup.beacon_interval > 10000)
9252 return -EINVAL;
9253 }
9254
9255 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9256 setup.dtim_period =
9257 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9258 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9259 return -EINVAL;
9260 }
9261
c80d545d
JC		 9262 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9263 /* parse additional setup parameters if given */
9264 err = nl80211_parse_mesh_setup(info, &setup);
9265 if (err)
9266 return err;
9267 }
9268
d37bb18a
TP		 9269 if (setup.user_mpm)
9270 cfg.auto_open_plinks = false;
9271
cc1d2806 9272 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 9273 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9274 if (err)
9275 return err;
cc1d2806
JB		 9276 } else {
9277 /* cfg80211_join_mesh() will sort it out */
683b6d3b 9278 setup.chandef.chan = NULL;
cc1d2806
JB		 9279 }
9280
ffb3cf30
AN		 9281 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9282 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9283 int n_rates =
9284 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9285 struct ieee80211_supported_band *sband;
9286
9287 if (!setup.chandef.chan)
9288 return -EINVAL;
9289
9290 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9291
9292 err = ieee80211_get_ratemask(sband, rates, n_rates,
9293 &setup.basic_rates);
9294 if (err)
9295 return err;
9296 }
9297
c80d545d 9298 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 9299}
9300
9301static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9302{
9303 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9304 struct net_device *dev = info->user_ptr[1];
9305
9306 return cfg80211_leave_mesh(rdev, dev);
9307}
9308
dfb89c56 9309#ifdef CONFIG_PM
bb92d199
AK		 9310static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9311 struct cfg80211_registered_device *rdev)
9312{
6abb9cb9 9313 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 9314 struct nlattr *nl_pats, *nl_pat;
9315 int i, pat_len;
9316
6abb9cb9 9317 if (!wowlan->n_patterns)
bb92d199
AK		 9318 return 0;
9319
9320 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9321 if (!nl_pats)
9322 return -ENOBUFS;
9323
6abb9cb9 9324 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 9325 nl_pat = nla_nest_start(msg, i + 1);
9326 if (!nl_pat)
9327 return -ENOBUFS;
6abb9cb9 9328 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 9329 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 9330 wowlan->patterns[i].mask) ||
50ac6607
AK		 9331 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9332 wowlan->patterns[i].pattern) ||
9333 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 9334 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 9335 return -ENOBUFS;
9336 nla_nest_end(msg, nl_pat);
9337 }
9338 nla_nest_end(msg, nl_pats);
9339
9340 return 0;
9341}
9342
2a0e047e
JB		 9343static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9344 struct cfg80211_wowlan_tcp *tcp)
9345{
9346 struct nlattr *nl_tcp;
9347
9348 if (!tcp)
9349 return 0;
9350
9351 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9352 if (!nl_tcp)
9353 return -ENOBUFS;
9354
930345ea
JB		 9355 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9356 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 9357 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9358 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9359 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9360 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9361 tcp->payload_len, tcp->payload) ||
9362 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9363 tcp->data_interval) ||
9364 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9365 tcp->wake_len, tcp->wake_data) ||
9366 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9367 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9368 return -ENOBUFS;
9369
9370 if (tcp->payload_seq.len &&
9371 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9372 sizeof(tcp->payload_seq), &tcp->payload_seq))
9373 return -ENOBUFS;
9374
9375 if (tcp->payload_tok.len &&
9376 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9377 sizeof(tcp->payload_tok) + tcp->tokens_size,
9378 &tcp->payload_tok))
9379 return -ENOBUFS;
9380
e248ad30
JB		 9381 nla_nest_end(msg, nl_tcp);
9382
2a0e047e
JB		 9383 return 0;
9384}
9385
75453ccb
LC		 9386static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9387 struct cfg80211_sched_scan_request *req)
9388{
3b06d277 9389 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 9390 int i;
9391
9392 if (!req)
9393 return 0;
9394
9395 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9396 if (!nd)
9397 return -ENOBUFS;
9398
3b06d277
AS		 9399 if (req->n_scan_plans == 1 &&
9400 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9401 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9402 return -ENOBUFS;
9403
21fea567
LC		 9404 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9405 return -ENOBUFS;
9406
75453ccb
LC		 9407 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9408 if (!freqs)
9409 return -ENOBUFS;
9410
9411 for (i = 0; i < req->n_channels; i++)
9412 nla_put_u32(msg, i, req->channels[i]->center_freq);
9413
9414 nla_nest_end(msg, freqs);
9415
9416 if (req->n_match_sets) {
9417 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9418 for (i = 0; i < req->n_match_sets; i++) {
9419 match = nla_nest_start(msg, i);
9420 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9421 req->match_sets[i].ssid.ssid_len,
9422 req->match_sets[i].ssid.ssid);
9423 nla_nest_end(msg, match);
9424 }
9425 nla_nest_end(msg, matches);
9426 }
9427
3b06d277
AS		 9428 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9429 if (!scan_plans)
9430 return -ENOBUFS;
9431
9432 for (i = 0; i < req->n_scan_plans; i++) {
9433 scan_plan = nla_nest_start(msg, i + 1);
9434 if (!scan_plan ||
9435 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9436 req->scan_plans[i].interval) ||
9437 (req->scan_plans[i].iterations &&
9438 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9439 req->scan_plans[i].iterations)))
9440 return -ENOBUFS;
9441 nla_nest_end(msg, scan_plan);
9442 }
9443 nla_nest_end(msg, scan_plans);
9444
75453ccb
LC		 9445 nla_nest_end(msg, nd);
9446
9447 return 0;
9448}
9449
ff1b6e69
JB		 9450static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9451{
9452 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9453 struct sk_buff *msg;
9454 void *hdr;
2a0e047e 9455 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 9456
964dc9e2 9457 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 9458 return -EOPNOTSUPP;
9459
6abb9cb9 9460 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 9461 /* adjust size to have room for all the data */
6abb9cb9
JB		 9462 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9463 rdev->wiphy.wowlan_config->tcp->payload_len +
9464 rdev->wiphy.wowlan_config->tcp->wake_len +
9465 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 9466 }
9467
9468 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 9469 if (!msg)
9470 return -ENOMEM;
9471
15e47304 9472 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 9473 NL80211_CMD_GET_WOWLAN);
9474 if (!hdr)
9475 goto nla_put_failure;
9476
6abb9cb9 9477 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 9478 struct nlattr *nl_wowlan;
9479
9480 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9481 if (!nl_wowlan)
9482 goto nla_put_failure;
9483
6abb9cb9 9484 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 9485 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 9486 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 9487 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 9488 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 9489 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 9490 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 9491 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 9492 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 9493 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 9494 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 9495 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 9496 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 9497 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9498 goto nla_put_failure;
2a0e047e 9499
bb92d199
AK		 9500 if (nl80211_send_wowlan_patterns(msg, rdev))
9501 goto nla_put_failure;
2a0e047e 9502
6abb9cb9
JB		 9503 if (nl80211_send_wowlan_tcp(msg,
9504 rdev->wiphy.wowlan_config->tcp))
2a0e047e 9505 goto nla_put_failure;
75453ccb
LC		 9506
9507 if (nl80211_send_wowlan_nd(
9508 msg,
9509 rdev->wiphy.wowlan_config->nd_config))
9510 goto nla_put_failure;
2a0e047e 9511
ff1b6e69
JB		 9512 nla_nest_end(msg, nl_wowlan);
9513 }
9514
9515 genlmsg_end(msg, hdr);
9516 return genlmsg_reply(msg, info);
9517
9518nla_put_failure:
9519 nlmsg_free(msg);
9520 return -ENOBUFS;
9521}
9522
2a0e047e
JB		 9523static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9524 struct nlattr *attr,
9525 struct cfg80211_wowlan *trig)
9526{
9527 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9528 struct cfg80211_wowlan_tcp *cfg;
9529 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9530 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9531 u32 size;
9532 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9533 int err, port;
9534
964dc9e2 9535 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 9536 return -EINVAL;
9537
9538 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9539 nla_data(attr), nla_len(attr),
9540 nl80211_wowlan_tcp_policy);
9541 if (err)
9542 return err;
9543
9544 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9545 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9546 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9547 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9548 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9549 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9550 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9551 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9552 return -EINVAL;
9553
9554 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 9555 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 9556 return -EINVAL;
9557
9558 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 9559 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 9560 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 9561 return -EINVAL;
9562
9563 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9564 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9565 return -EINVAL;
9566
9567 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9568 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9569 return -EINVAL;
9570
9571 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9572 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9573
9574 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9575 tokens_size = tokln - sizeof(*tok);
9576
9577 if (!tok->len || tokens_size % tok->len)
9578 return -EINVAL;
964dc9e2 9579 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9580 return -EINVAL;
964dc9e2 9581 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9582 return -EINVAL;
964dc9e2 9583 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9584 return -EINVAL;
964dc9e2 9585 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9586 return -EINVAL;
9587 if (tok->offset + tok->len > data_size)
9588 return -EINVAL;
9589 }
9590
9591 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9592 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9593 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9594 return -EINVAL;
9595 if (seq->len == 0 || seq->len > 4)
9596 return -EINVAL;
9597 if (seq->len + seq->offset > data_size)
9598 return -EINVAL;
9599 }
9600
9601 size = sizeof(*cfg);
9602 size += data_size;
9603 size += wake_size + wake_mask_size;
9604 size += tokens_size;
9605
9606 cfg = kzalloc(size, GFP_KERNEL);
9607 if (!cfg)
9608 return -ENOMEM;
67b61f6c
JB		 9609 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9610 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 9611 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9612 ETH_ALEN);
9613 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9614 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9615 else
9616 port = 0;
9617#ifdef CONFIG_INET
9618 /* allocate a socket and port for it and use it */
9619 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9620 IPPROTO_TCP, &cfg->sock, 1);
9621 if (err) {
9622 kfree(cfg);
9623 return err;
9624 }
9625 if (inet_csk_get_port(cfg->sock->sk, port)) {
9626 sock_release(cfg->sock);
9627 kfree(cfg);
9628 return -EADDRINUSE;
9629 }
9630 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9631#else
9632 if (!port) {
9633 kfree(cfg);
9634 return -EINVAL;
9635 }
9636 cfg->src_port = port;
9637#endif
9638
9639 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9640 cfg->payload_len = data_size;
9641 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9642 memcpy((void *)cfg->payload,
9643 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9644 data_size);
9645 if (seq)
9646 cfg->payload_seq = *seq;
9647 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9648 cfg->wake_len = wake_size;
9649 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9650 memcpy((void *)cfg->wake_data,
9651 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9652 wake_size);
9653 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9654 data_size + wake_size;
9655 memcpy((void *)cfg->wake_mask,
9656 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9657 wake_mask_size);
9658 if (tok) {
9659 cfg->tokens_size = tokens_size;
9660 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9661 }
9662
9663 trig->tcp = cfg;
9664
9665 return 0;
9666}
9667
8cd4d456
LC		 9668static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9669 const struct wiphy_wowlan_support *wowlan,
9670 struct nlattr *attr,
9671 struct cfg80211_wowlan *trig)
9672{
9673 struct nlattr **tb;
9674 int err;
9675
9676 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9677 if (!tb)
9678 return -ENOMEM;
9679
9680 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9681 err = -EOPNOTSUPP;
9682 goto out;
9683 }
9684
9685 err = nla_parse(tb, NL80211_ATTR_MAX,
9686 nla_data(attr), nla_len(attr),
9687 nl80211_policy);
9688 if (err)
9689 goto out;
9690
ad2b26ab 9691 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9692 err = PTR_ERR_OR_ZERO(trig->nd_config);
9693 if (err)
9694 trig->nd_config = NULL;
9695
9696out:
9697 kfree(tb);
9698 return err;
9699}
9700
ff1b6e69
JB		 9701static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9702{
9703 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9704 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9705 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9706 struct cfg80211_wowlan *ntrig;
964dc9e2 9707 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9708 int err, i;
6abb9cb9 9709 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 9710 bool regular = false;
ff1b6e69 9711
964dc9e2 9712 if (!wowlan)
ff1b6e69
JB		 9713 return -EOPNOTSUPP;
9714
ae33bd81
JB		 9715 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9716 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9717 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9718 goto set_wakeup;
9719 }
ff1b6e69
JB		 9720
9721 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9722 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9723 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9724 nl80211_wowlan_policy);
9725 if (err)
9726 return err;
9727
9728 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9729 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9730 return -EINVAL;
9731 new_triggers.any = true;
9732 }
9733
9734 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9735 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9736 return -EINVAL;
9737 new_triggers.disconnect = true;
98fc4386 9738 regular = true;
ff1b6e69
JB		 9739 }
9740
9741 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9742 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9743 return -EINVAL;
9744 new_triggers.magic_pkt = true;
98fc4386 9745 regular = true;
ff1b6e69
JB		 9746 }
9747
77dbbb13
JB		 9748 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9749 return -EINVAL;
9750
9751 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9752 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9753 return -EINVAL;
9754 new_triggers.gtk_rekey_failure = true;
98fc4386 9755 regular = true;
77dbbb13
JB		 9756 }
9757
9758 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9759 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9760 return -EINVAL;
9761 new_triggers.eap_identity_req = true;
98fc4386 9762 regular = true;
77dbbb13
JB		 9763 }
9764
9765 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9766 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9767 return -EINVAL;
9768 new_triggers.four_way_handshake = true;
98fc4386 9769 regular = true;
77dbbb13
JB		 9770 }
9771
9772 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9773 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9774 return -EINVAL;
9775 new_triggers.rfkill_release = true;
98fc4386 9776 regular = true;
77dbbb13
JB		 9777 }
9778
ff1b6e69
JB		 9779 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9780 struct nlattr *pat;
9781 int n_patterns = 0;
bb92d199 9782 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9783 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 9784
98fc4386
JB		 9785 regular = true;
9786
ff1b6e69
JB		 9787 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9788 rem)
9789 n_patterns++;
9790 if (n_patterns > wowlan->n_patterns)
9791 return -EINVAL;
9792
9793 new_triggers.patterns = kcalloc(n_patterns,
9794 sizeof(new_triggers.patterns[0]),
9795 GFP_KERNEL);
9796 if (!new_triggers.patterns)
9797 return -ENOMEM;
9798
9799 new_triggers.n_patterns = n_patterns;
9800 i = 0;
9801
9802 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9803 rem) {
922bd80f
JB		 9804 u8 *mask_pat;
9805
50ac6607
AK		 9806 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9807 nla_len(pat), NULL);
ff1b6e69 9808 err = -EINVAL;
50ac6607
AK		 9809 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9810 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9811 goto error;
50ac6607 9812 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9813 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9814 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9815 goto error;
9816 if (pat_len > wowlan->pattern_max_len ||
9817 pat_len < wowlan->pattern_min_len)
9818 goto error;
9819
50ac6607 9820 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9821 pkt_offset = 0;
9822 else
9823 pkt_offset = nla_get_u32(
50ac6607 9824 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9825 if (pkt_offset > wowlan->max_pkt_offset)
9826 goto error;
9827 new_triggers.patterns[i].pkt_offset = pkt_offset;
9828
922bd80f
JB		 9829 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9830 if (!mask_pat) {
ff1b6e69
JB		 9831 err = -ENOMEM;
9832 goto error;
9833 }
922bd80f
JB		 9834 new_triggers.patterns[i].mask = mask_pat;
9835 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9836 mask_len);
922bd80f
JB		 9837 mask_pat += mask_len;
9838 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9839 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9840 memcpy(mask_pat,
50ac6607 9841 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9842 pat_len);
9843 i++;
9844 }
9845 }
9846
2a0e047e 9847 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 9848 regular = true;
2a0e047e
JB		 9849 err = nl80211_parse_wowlan_tcp(
9850 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9851 &new_triggers);
9852 if (err)
9853 goto error;
9854 }
9855
8cd4d456 9856 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 9857 regular = true;
8cd4d456
LC		 9858 err = nl80211_parse_wowlan_nd(
9859 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9860 &new_triggers);
9861 if (err)
9862 goto error;
9863 }
9864
98fc4386
JB		 9865 /* The 'any' trigger means the device continues operating more or less
9866 * as in its normal operation mode and wakes up the host on most of the
9867 * normal interrupts (like packet RX, ...)
9868 * It therefore makes little sense to combine with the more constrained
9869 * wakeup trigger modes.
9870 */
9871 if (new_triggers.any && regular) {
9872 err = -EINVAL;
9873 goto error;
9874 }
9875
ae33bd81
JB		 9876 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9877 if (!ntrig) {
9878 err = -ENOMEM;
9879 goto error;
ff1b6e69 9880 }
ae33bd81 9881 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9882 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9883
ae33bd81 9884 set_wakeup:
6abb9cb9
JB		 9885 if (rdev->ops->set_wakeup &&
9886 prev_enabled != !!rdev->wiphy.wowlan_config)
9887 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9888
ff1b6e69
JB		 9889 return 0;
9890 error:
9891 for (i = 0; i < new_triggers.n_patterns; i++)
9892 kfree(new_triggers.patterns[i].mask);
9893 kfree(new_triggers.patterns);
2a0e047e
JB		 9894 if (new_triggers.tcp && new_triggers.tcp->sock)
9895 sock_release(new_triggers.tcp->sock);
9896 kfree(new_triggers.tcp);
e5dbe070 9897 kfree(new_triggers.nd_config);
ff1b6e69
JB		 9898 return err;
9899}
dfb89c56 9900#endif
ff1b6e69 9901
be29b99a
AK		 9902static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9903 struct cfg80211_registered_device *rdev)
9904{
9905 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9906 int i, j, pat_len;
9907 struct cfg80211_coalesce_rules *rule;
9908
9909 if (!rdev->coalesce->n_rules)
9910 return 0;
9911
9912 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9913 if (!nl_rules)
9914 return -ENOBUFS;
9915
9916 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9917 nl_rule = nla_nest_start(msg, i + 1);
9918 if (!nl_rule)
9919 return -ENOBUFS;
9920
9921 rule = &rdev->coalesce->rules[i];
9922 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9923 rule->delay))
9924 return -ENOBUFS;
9925
9926 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9927 rule->condition))
9928 return -ENOBUFS;
9929
9930 nl_pats = nla_nest_start(msg,
9931 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9932 if (!nl_pats)
9933 return -ENOBUFS;
9934
9935 for (j = 0; j < rule->n_patterns; j++) {
9936 nl_pat = nla_nest_start(msg, j + 1);
9937 if (!nl_pat)
9938 return -ENOBUFS;
9939 pat_len = rule->patterns[j].pattern_len;
9940 if (nla_put(msg, NL80211_PKTPAT_MASK,
9941 DIV_ROUND_UP(pat_len, 8),
9942 rule->patterns[j].mask) ||
9943 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9944 rule->patterns[j].pattern) ||
9945 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9946 rule->patterns[j].pkt_offset))
9947 return -ENOBUFS;
9948 nla_nest_end(msg, nl_pat);
9949 }
9950 nla_nest_end(msg, nl_pats);
9951 nla_nest_end(msg, nl_rule);
9952 }
9953 nla_nest_end(msg, nl_rules);
9954
9955 return 0;
9956}
9957
9958static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9959{
9960 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9961 struct sk_buff *msg;
9962 void *hdr;
9963
9964 if (!rdev->wiphy.coalesce)
9965 return -EOPNOTSUPP;
9966
9967 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9968 if (!msg)
9969 return -ENOMEM;
9970
9971 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9972 NL80211_CMD_GET_COALESCE);
9973 if (!hdr)
9974 goto nla_put_failure;
9975
9976 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9977 goto nla_put_failure;
9978
9979 genlmsg_end(msg, hdr);
9980 return genlmsg_reply(msg, info);
9981
9982nla_put_failure:
9983 nlmsg_free(msg);
9984 return -ENOBUFS;
9985}
9986
9987void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9988{
9989 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9990 int i, j;
9991 struct cfg80211_coalesce_rules *rule;
9992
9993 if (!coalesce)
9994 return;
9995
9996 for (i = 0; i < coalesce->n_rules; i++) {
9997 rule = &coalesce->rules[i];
9998 for (j = 0; j < rule->n_patterns; j++)
9999 kfree(rule->patterns[j].mask);
10000 kfree(rule->patterns);
10001 }
10002 kfree(coalesce->rules);
10003 kfree(coalesce);
10004 rdev->coalesce = NULL;
10005}
10006
10007static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10008 struct nlattr *rule,
10009 struct cfg80211_coalesce_rules *new_rule)
10010{
10011 int err, i;
10012 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10013 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10014 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10015 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10016
10017 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
10018 nla_len(rule), nl80211_coalesce_policy);
10019 if (err)
10020 return err;
10021
10022 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10023 new_rule->delay =
10024 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10025 if (new_rule->delay > coalesce->max_delay)
10026 return -EINVAL;
10027
10028 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10029 new_rule->condition =
10030 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10031 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10032 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10033 return -EINVAL;
10034
10035 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10036 return -EINVAL;
10037
10038 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10039 rem)
10040 n_patterns++;
10041 if (n_patterns > coalesce->n_patterns)
10042 return -EINVAL;
10043
10044 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10045 GFP_KERNEL);
10046 if (!new_rule->patterns)
10047 return -ENOMEM;
10048
10049 new_rule->n_patterns = n_patterns;
10050 i = 0;
10051
10052 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10053 rem) {
922bd80f
JB		 10054 u8 *mask_pat;
10055
be29b99a
AK		 10056 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
10057 nla_len(pat), NULL);
10058 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10059 !pat_tb[NL80211_PKTPAT_PATTERN])
10060 return -EINVAL;
10061 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10062 mask_len = DIV_ROUND_UP(pat_len, 8);
10063 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10064 return -EINVAL;
10065 if (pat_len > coalesce->pattern_max_len ||
10066 pat_len < coalesce->pattern_min_len)
10067 return -EINVAL;
10068
10069 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10070 pkt_offset = 0;
10071 else
10072 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10073 if (pkt_offset > coalesce->max_pkt_offset)
10074 return -EINVAL;
10075 new_rule->patterns[i].pkt_offset = pkt_offset;
10076
922bd80f
JB		 10077 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10078 if (!mask_pat)
be29b99a 10079 return -ENOMEM;
922bd80f
JB		 10080
10081 new_rule->patterns[i].mask = mask_pat;
10082 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10083 mask_len);
10084
10085 mask_pat += mask_len;
10086 new_rule->patterns[i].pattern = mask_pat;
be29b99a 10087 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 10088 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10089 pat_len);
be29b99a
AK		 10090 i++;
10091 }
10092
10093 return 0;
10094}
10095
10096static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10097{
10098 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10099 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10100 struct cfg80211_coalesce new_coalesce = {};
10101 struct cfg80211_coalesce *n_coalesce;
10102 int err, rem_rule, n_rules = 0, i, j;
10103 struct nlattr *rule;
10104 struct cfg80211_coalesce_rules *tmp_rule;
10105
10106 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10107 return -EOPNOTSUPP;
10108
10109 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10110 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 10111 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 10112 return 0;
10113 }
10114
10115 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10116 rem_rule)
10117 n_rules++;
10118 if (n_rules > coalesce->n_rules)
10119 return -EINVAL;
10120
10121 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10122 GFP_KERNEL);
10123 if (!new_coalesce.rules)
10124 return -ENOMEM;
10125
10126 new_coalesce.n_rules = n_rules;
10127 i = 0;
10128
10129 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10130 rem_rule) {
10131 err = nl80211_parse_coalesce_rule(rdev, rule,
10132 &new_coalesce.rules[i]);
10133 if (err)
10134 goto error;
10135
10136 i++;
10137 }
10138
a1056b1b 10139 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 10140 if (err)
10141 goto error;
10142
10143 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10144 if (!n_coalesce) {
10145 err = -ENOMEM;
10146 goto error;
10147 }
10148 cfg80211_rdev_free_coalesce(rdev);
10149 rdev->coalesce = n_coalesce;
10150
10151 return 0;
10152error:
10153 for (i = 0; i < new_coalesce.n_rules; i++) {
10154 tmp_rule = &new_coalesce.rules[i];
10155 for (j = 0; j < tmp_rule->n_patterns; j++)
10156 kfree(tmp_rule->patterns[j].mask);
10157 kfree(tmp_rule->patterns);
10158 }
10159 kfree(new_coalesce.rules);
10160
10161 return err;
10162}
10163
e5497d76
JB		 10164static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10165{
10166 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10167 struct net_device *dev = info->user_ptr[1];
10168 struct wireless_dev *wdev = dev->ieee80211_ptr;
10169 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10170 struct cfg80211_gtk_rekey_data rekey_data;
10171 int err;
10172
10173 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10174 return -EINVAL;
10175
10176 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
10177 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
10178 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
10179 nl80211_rekey_policy);
10180 if (err)
10181 return err;
10182
10183 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10184 return -ERANGE;
10185 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10186 return -ERANGE;
10187 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10188 return -ERANGE;
10189
78f686ca
JB		 10190 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10191 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10192 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 10193
10194 wdev_lock(wdev);
10195 if (!wdev->current_bss) {
10196 err = -ENOTCONN;
10197 goto out;
10198 }
10199
10200 if (!rdev->ops->set_rekey_data) {
10201 err = -EOPNOTSUPP;
10202 goto out;
10203 }
10204
e35e4d28 10205 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 10206 out:
10207 wdev_unlock(wdev);
10208 return err;
10209}
10210
28946da7
JB		 10211static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10212 struct genl_info *info)
10213{
10214 struct net_device *dev = info->user_ptr[1];
10215 struct wireless_dev *wdev = dev->ieee80211_ptr;
10216
10217 if (wdev->iftype != NL80211_IFTYPE_AP &&
10218 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10219 return -EINVAL;
10220
15e47304 10221 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 10222 return -EBUSY;
10223
15e47304 10224 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 10225 return 0;
10226}
10227
7f6cf311
JB		 10228static int nl80211_probe_client(struct sk_buff *skb,
10229 struct genl_info *info)
10230{
10231 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10232 struct net_device *dev = info->user_ptr[1];
10233 struct wireless_dev *wdev = dev->ieee80211_ptr;
10234 struct sk_buff *msg;
10235 void *hdr;
10236 const u8 *addr;
10237 u64 cookie;
10238 int err;
10239
10240 if (wdev->iftype != NL80211_IFTYPE_AP &&
10241 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10242 return -EOPNOTSUPP;
10243
10244 if (!info->attrs[NL80211_ATTR_MAC])
10245 return -EINVAL;
10246
10247 if (!rdev->ops->probe_client)
10248 return -EOPNOTSUPP;
10249
10250 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10251 if (!msg)
10252 return -ENOMEM;
10253
15e47304 10254 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 10255 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 10256 if (!hdr) {
10257 err = -ENOBUFS;
7f6cf311
JB		 10258 goto free_msg;
10259 }
10260
10261 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10262
e35e4d28 10263 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 10264 if (err)
10265 goto free_msg;
10266
2dad624e
ND		 10267 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10268 NL80211_ATTR_PAD))
9360ffd1 10269 goto nla_put_failure;
7f6cf311
JB		 10270
10271 genlmsg_end(msg, hdr);
10272
10273 return genlmsg_reply(msg, info);
10274
10275 nla_put_failure:
10276 err = -ENOBUFS;
10277 free_msg:
10278 nlmsg_free(msg);
10279 return err;
10280}
10281
5e760230
JB		 10282static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10283{
10284 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 10285 struct cfg80211_beacon_registration *reg, *nreg;
10286 int rv;
5e760230
JB		 10287
10288 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10289 return -EOPNOTSUPP;
10290
37c73b5f
BG		 10291 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10292 if (!nreg)
10293 return -ENOMEM;
10294
10295 /* First, check if already registered. */
10296 spin_lock_bh(&rdev->beacon_registrations_lock);
10297 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10298 if (reg->nlportid == info->snd_portid) {
10299 rv = -EALREADY;
10300 goto out_err;
10301 }
10302 }
10303 /* Add it to the list */
10304 nreg->nlportid = info->snd_portid;
10305 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 10306
37c73b5f 10307 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10308
10309 return 0;
37c73b5f
BG		 10310out_err:
10311 spin_unlock_bh(&rdev->beacon_registrations_lock);
10312 kfree(nreg);
10313 return rv;
5e760230
JB		 10314}
10315
98104fde
JB		 10316static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10317{
10318 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10319 struct wireless_dev *wdev = info->user_ptr[1];
10320 int err;
10321
10322 if (!rdev->ops->start_p2p_device)
10323 return -EOPNOTSUPP;
10324
10325 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10326 return -EOPNOTSUPP;
10327
10328 if (wdev->p2p_started)
10329 return 0;
10330
b6a55015
LC		 10331 if (rfkill_blocked(rdev->rfkill))
10332 return -ERFKILL;
98104fde 10333
eeb126e9 10334 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 10335 if (err)
10336 return err;
10337
10338 wdev->p2p_started = true;
98104fde 10339 rdev->opencount++;
98104fde
JB		 10340
10341 return 0;
10342}
10343
10344static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10345{
10346 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10347 struct wireless_dev *wdev = info->user_ptr[1];
10348
10349 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10350 return -EOPNOTSUPP;
10351
10352 if (!rdev->ops->stop_p2p_device)
10353 return -EOPNOTSUPP;
10354
f9f47529 10355 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 10356
10357 return 0;
10358}
10359
3713b4e3
JB		 10360static int nl80211_get_protocol_features(struct sk_buff *skb,
10361 struct genl_info *info)
10362{
10363 void *hdr;
10364 struct sk_buff *msg;
10365
10366 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10367 if (!msg)
10368 return -ENOMEM;
10369
10370 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10371 NL80211_CMD_GET_PROTOCOL_FEATURES);
10372 if (!hdr)
10373 goto nla_put_failure;
10374
10375 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
10376 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
10377 goto nla_put_failure;
10378
10379 genlmsg_end(msg, hdr);
10380 return genlmsg_reply(msg, info);
10381
10382 nla_put_failure:
10383 kfree_skb(msg);
10384 return -ENOBUFS;
10385}
10386
355199e0
JM		 10387static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
10388{
10389 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10390 struct cfg80211_update_ft_ies_params ft_params;
10391 struct net_device *dev = info->user_ptr[1];
10392
10393 if (!rdev->ops->update_ft_ies)
10394 return -EOPNOTSUPP;
10395
10396 if (!info->attrs[NL80211_ATTR_MDID] ||
10397 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
10398 return -EINVAL;
10399
10400 memset(&ft_params, 0, sizeof(ft_params));
10401 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10402 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10403 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10404
10405 return rdev_update_ft_ies(rdev, dev, &ft_params);
10406}
10407
5de17984
AS		 10408static int nl80211_crit_protocol_start(struct sk_buff *skb,
10409 struct genl_info *info)
10410{
10411 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10412 struct wireless_dev *wdev = info->user_ptr[1];
10413 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10414 u16 duration;
10415 int ret;
10416
10417 if (!rdev->ops->crit_proto_start)
10418 return -EOPNOTSUPP;
10419
10420 if (WARN_ON(!rdev->ops->crit_proto_stop))
10421 return -EINVAL;
10422
10423 if (rdev->crit_proto_nlportid)
10424 return -EBUSY;
10425
10426 /* determine protocol if provided */
10427 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10428 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10429
10430 if (proto >= NUM_NL80211_CRIT_PROTO)
10431 return -EINVAL;
10432
10433 /* timeout must be provided */
10434 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10435 return -EINVAL;
10436
10437 duration =
10438 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10439
10440 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10441 return -ERANGE;
10442
10443 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10444 if (!ret)
10445 rdev->crit_proto_nlportid = info->snd_portid;
10446
10447 return ret;
10448}
10449
10450static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10451 struct genl_info *info)
10452{
10453 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10454 struct wireless_dev *wdev = info->user_ptr[1];
10455
10456 if (!rdev->ops->crit_proto_stop)
10457 return -EOPNOTSUPP;
10458
10459 if (rdev->crit_proto_nlportid) {
10460 rdev->crit_proto_nlportid = 0;
10461 rdev_crit_proto_stop(rdev, wdev);
10462 }
10463 return 0;
10464}
10465
ad7e718c
JB		 10466static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10467{
10468 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10469 struct wireless_dev *wdev =
10470 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10471 int i, err;
10472 u32 vid, subcmd;
10473
10474 if (!rdev->wiphy.vendor_commands)
10475 return -EOPNOTSUPP;
10476
10477 if (IS_ERR(wdev)) {
10478 err = PTR_ERR(wdev);
10479 if (err != -EINVAL)
10480 return err;
10481 wdev = NULL;
10482 } else if (wdev->wiphy != &rdev->wiphy) {
10483 return -EINVAL;
10484 }
10485
10486 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10487 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10488 return -EINVAL;
10489
10490 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10491 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10492 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10493 const struct wiphy_vendor_command *vcmd;
10494 void *data = NULL;
10495 int len = 0;
10496
10497 vcmd = &rdev->wiphy.vendor_commands[i];
10498
10499 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10500 continue;
10501
10502 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10503 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10504 if (!wdev)
10505 return -EINVAL;
10506 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10507 !wdev->netdev)
10508 return -EINVAL;
10509
10510 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10511 if (wdev->netdev &&
10512 !netif_running(wdev->netdev))
10513 return -ENETDOWN;
10514 if (!wdev->netdev && !wdev->p2p_started)
10515 return -ENETDOWN;
10516 }
7bdbe400
JB		 10517
10518 if (!vcmd->doit)
10519 return -EOPNOTSUPP;
ad7e718c
JB		 10520 } else {
10521 wdev = NULL;
10522 }
10523
10524 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10525 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10526 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10527 }
10528
10529 rdev->cur_cmd_info = info;
10530 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10531 data, len);
10532 rdev->cur_cmd_info = NULL;
10533 return err;
10534 }
10535
10536 return -EOPNOTSUPP;
10537}
10538
7bdbe400
JB		 10539static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10540 struct netlink_callback *cb,
10541 struct cfg80211_registered_device **rdev,
10542 struct wireless_dev **wdev)
10543{
10544 u32 vid, subcmd;
10545 unsigned int i;
10546 int vcmd_idx = -1;
10547 int err;
10548 void *data = NULL;
10549 unsigned int data_len = 0;
10550
10551 rtnl_lock();
10552
10553 if (cb->args[0]) {
10554 /* subtract the 1 again here */
10555 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10556 struct wireless_dev *tmp;
10557
10558 if (!wiphy) {
10559 err = -ENODEV;
10560 goto out_unlock;
10561 }
10562 *rdev = wiphy_to_rdev(wiphy);
10563 *wdev = NULL;
10564
10565 if (cb->args[1]) {
53873f13 10566 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
7bdbe400
JB		 10567 if (tmp->identifier == cb->args[1] - 1) {
10568 *wdev = tmp;
10569 break;
10570 }
10571 }
10572 }
10573
10574 /* keep rtnl locked in successful case */
10575 return 0;
10576 }
10577
10578 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10579 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10580 nl80211_policy);
10581 if (err)
10582 goto out_unlock;
10583
10584 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10585 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10586 err = -EINVAL;
10587 goto out_unlock;
10588 }
10589
10590 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10591 nl80211_fam.attrbuf);
10592 if (IS_ERR(*wdev))
10593 *wdev = NULL;
10594
10595 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10596 nl80211_fam.attrbuf);
10597 if (IS_ERR(*rdev)) {
10598 err = PTR_ERR(*rdev);
10599 goto out_unlock;
10600 }
10601
10602 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10603 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10604
10605 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10606 const struct wiphy_vendor_command *vcmd;
10607
10608 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10609
10610 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10611 continue;
10612
10613 if (!vcmd->dumpit) {
10614 err = -EOPNOTSUPP;
10615 goto out_unlock;
10616 }
10617
10618 vcmd_idx = i;
10619 break;
10620 }
10621
10622 if (vcmd_idx < 0) {
10623 err = -EOPNOTSUPP;
10624 goto out_unlock;
10625 }
10626
10627 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10628 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10629 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10630 }
10631
10632 /* 0 is the first index - add 1 to parse only once */
10633 cb->args[0] = (*rdev)->wiphy_idx + 1;
10634 /* add 1 to know if it was NULL */
10635 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10636 cb->args[2] = vcmd_idx;
10637 cb->args[3] = (unsigned long)data;
10638 cb->args[4] = data_len;
10639
10640 /* keep rtnl locked in successful case */
10641 return 0;
10642 out_unlock:
10643 rtnl_unlock();
10644 return err;
10645}
10646
10647static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10648 struct netlink_callback *cb)
10649{
10650 struct cfg80211_registered_device *rdev;
10651 struct wireless_dev *wdev;
10652 unsigned int vcmd_idx;
10653 const struct wiphy_vendor_command *vcmd;
10654 void *data;
10655 int data_len;
10656 int err;
10657 struct nlattr *vendor_data;
10658
10659 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10660 if (err)
10661 return err;
10662
10663 vcmd_idx = cb->args[2];
10664 data = (void *)cb->args[3];
10665 data_len = cb->args[4];
10666 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10667
10668 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10669 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10670 if (!wdev)
10671 return -EINVAL;
10672 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10673 !wdev->netdev)
10674 return -EINVAL;
10675
10676 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10677 if (wdev->netdev &&
10678 !netif_running(wdev->netdev))
10679 return -ENETDOWN;
10680 if (!wdev->netdev && !wdev->p2p_started)
10681 return -ENETDOWN;
10682 }
10683 }
10684
10685 while (1) {
10686 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10687 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10688 NL80211_CMD_VENDOR);
10689 if (!hdr)
10690 break;
10691
10692 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 10693 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
10694 wdev_id(wdev),
10695 NL80211_ATTR_PAD))) {
7bdbe400
JB		 10696 genlmsg_cancel(skb, hdr);
10697 break;
10698 }
10699
10700 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10701 if (!vendor_data) {
10702 genlmsg_cancel(skb, hdr);
10703 break;
10704 }
10705
10706 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10707 (unsigned long *)&cb->args[5]);
10708 nla_nest_end(skb, vendor_data);
10709
10710 if (err == -ENOBUFS || err == -ENOENT) {
10711 genlmsg_cancel(skb, hdr);
10712 break;
10713 } else if (err) {
10714 genlmsg_cancel(skb, hdr);
10715 goto out;
10716 }
10717
10718 genlmsg_end(skb, hdr);
10719 }
10720
10721 err = skb->len;
10722 out:
10723 rtnl_unlock();
10724 return err;
10725}
10726
ad7e718c
JB		 10727struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10728 enum nl80211_commands cmd,
10729 enum nl80211_attrs attr,
10730 int approxlen)
10731{
f26cbf40 10732 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 10733
10734 if (WARN_ON(!rdev->cur_cmd_info))
10735 return NULL;
10736
6c09e791 10737 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 10738 rdev->cur_cmd_info->snd_portid,
10739 rdev->cur_cmd_info->snd_seq,
567ffc35 10740 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 10741}
10742EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10743
10744int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10745{
10746 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10747 void *hdr = ((void **)skb->cb)[1];
10748 struct nlattr *data = ((void **)skb->cb)[2];
10749
bd8c78e7
JB		 10750 /* clear CB data for netlink core to own from now on */
10751 memset(skb->cb, 0, sizeof(skb->cb));
10752
ad7e718c
JB		 10753 if (WARN_ON(!rdev->cur_cmd_info)) {
10754 kfree_skb(skb);
10755 return -EINVAL;
10756 }
10757
10758 nla_nest_end(skb, data);
10759 genlmsg_end(skb, hdr);
10760 return genlmsg_reply(skb, rdev->cur_cmd_info);
10761}
10762EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10763
fa9ffc74
KP		 10764static int nl80211_set_qos_map(struct sk_buff *skb,
10765 struct genl_info *info)
10766{
10767 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10768 struct cfg80211_qos_map *qos_map = NULL;
10769 struct net_device *dev = info->user_ptr[1];
10770 u8 *pos, len, num_des, des_len, des;
10771 int ret;
10772
10773 if (!rdev->ops->set_qos_map)
10774 return -EOPNOTSUPP;
10775
10776 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10777 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10778 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10779
10780 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10781 len > IEEE80211_QOS_MAP_LEN_MAX)
10782 return -EINVAL;
10783
10784 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10785 if (!qos_map)
10786 return -ENOMEM;
10787
10788 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10789 if (num_des) {
10790 des_len = num_des *
10791 sizeof(struct cfg80211_dscp_exception);
10792 memcpy(qos_map->dscp_exception, pos, des_len);
10793 qos_map->num_des = num_des;
10794 for (des = 0; des < num_des; des++) {
10795 if (qos_map->dscp_exception[des].up > 7) {
10796 kfree(qos_map);
10797 return -EINVAL;
10798 }
10799 }
10800 pos += des_len;
10801 }
10802 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10803 }
10804
10805 wdev_lock(dev->ieee80211_ptr);
10806 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10807 if (!ret)
10808 ret = rdev_set_qos_map(rdev, dev, qos_map);
10809 wdev_unlock(dev->ieee80211_ptr);
10810
10811 kfree(qos_map);
10812 return ret;
10813}
10814
960d01ac
JB		 10815static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10816{
10817 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10818 struct net_device *dev = info->user_ptr[1];
10819 struct wireless_dev *wdev = dev->ieee80211_ptr;
10820 const u8 *peer;
10821 u8 tsid, up;
10822 u16 admitted_time = 0;
10823 int err;
10824
723e73ac 10825 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 10826 return -EOPNOTSUPP;
10827
10828 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10829 !info->attrs[NL80211_ATTR_USER_PRIO])
10830 return -EINVAL;
10831
10832 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10833 if (tsid >= IEEE80211_NUM_TIDS)
10834 return -EINVAL;
10835
10836 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10837 if (up >= IEEE80211_NUM_UPS)
10838 return -EINVAL;
10839
10840 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 10841 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 10842 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 10843 * need more attributes for that (e.g. BA session requirement);
10844 * change the WMM adminssion test above to allow both then
960d01ac
JB		 10845 */
10846 return -EINVAL;
10847 }
10848
10849 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10850
10851 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10852 admitted_time =
10853 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10854 if (!admitted_time)
10855 return -EINVAL;
10856 }
10857
10858 wdev_lock(wdev);
10859 switch (wdev->iftype) {
10860 case NL80211_IFTYPE_STATION:
10861 case NL80211_IFTYPE_P2P_CLIENT:
10862 if (wdev->current_bss)
10863 break;
10864 err = -ENOTCONN;
10865 goto out;
10866 default:
10867 err = -EOPNOTSUPP;
10868 goto out;
10869 }
10870
10871 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10872
10873 out:
10874 wdev_unlock(wdev);
10875 return err;
10876}
10877
10878static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10879{
10880 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10881 struct net_device *dev = info->user_ptr[1];
10882 struct wireless_dev *wdev = dev->ieee80211_ptr;
10883 const u8 *peer;
10884 u8 tsid;
10885 int err;
10886
10887 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10888 return -EINVAL;
10889
10890 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10891 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10892
10893 wdev_lock(wdev);
10894 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10895 wdev_unlock(wdev);
10896
10897 return err;
10898}
10899
1057d35e
AN		 10900static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10901 struct genl_info *info)
10902{
10903 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10904 struct net_device *dev = info->user_ptr[1];
10905 struct wireless_dev *wdev = dev->ieee80211_ptr;
10906 struct cfg80211_chan_def chandef = {};
10907 const u8 *addr;
10908 u8 oper_class;
10909 int err;
10910
10911 if (!rdev->ops->tdls_channel_switch ||
10912 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10913 return -EOPNOTSUPP;
10914
10915 switch (dev->ieee80211_ptr->iftype) {
10916 case NL80211_IFTYPE_STATION:
10917 case NL80211_IFTYPE_P2P_CLIENT:
10918 break;
10919 default:
10920 return -EOPNOTSUPP;
10921 }
10922
10923 if (!info->attrs[NL80211_ATTR_MAC] ||
10924 !info->attrs[NL80211_ATTR_OPER_CLASS])
10925 return -EINVAL;
10926
10927 err = nl80211_parse_chandef(rdev, info, &chandef);
10928 if (err)
10929 return err;
10930
10931 /*
10932 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10933 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10934 * specification is not defined for them.
10935 */
57fbcce3 10936 if (chandef.chan->band == NL80211_BAND_2GHZ &&
1057d35e
AN		 10937 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10938 chandef.width != NL80211_CHAN_WIDTH_20)
10939 return -EINVAL;
10940
10941 /* we will be active on the TDLS link */
923b352f
AN		 10942 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10943 wdev->iftype))
1057d35e
AN		 10944 return -EINVAL;
10945
10946 /* don't allow switching to DFS channels */
10947 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10948 return -EINVAL;
10949
10950 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10951 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10952
10953 wdev_lock(wdev);
10954 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10955 wdev_unlock(wdev);
10956
10957 return err;
10958}
10959
10960static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10961 struct genl_info *info)
10962{
10963 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10964 struct net_device *dev = info->user_ptr[1];
10965 struct wireless_dev *wdev = dev->ieee80211_ptr;
10966 const u8 *addr;
10967
10968 if (!rdev->ops->tdls_channel_switch ||
10969 !rdev->ops->tdls_cancel_channel_switch ||
10970 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10971 return -EOPNOTSUPP;
10972
10973 switch (dev->ieee80211_ptr->iftype) {
10974 case NL80211_IFTYPE_STATION:
10975 case NL80211_IFTYPE_P2P_CLIENT:
10976 break;
10977 default:
10978 return -EOPNOTSUPP;
10979 }
10980
10981 if (!info->attrs[NL80211_ATTR_MAC])
10982 return -EINVAL;
10983
10984 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10985
10986 wdev_lock(wdev);
10987 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10988 wdev_unlock(wdev);
10989
10990 return 0;
10991}
10992
4c476991
JB		 10993#define NL80211_FLAG_NEED_WIPHY 0x01
10994#define NL80211_FLAG_NEED_NETDEV 0x02
10995#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10996#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10997#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10998 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10999#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 11000/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 11001#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
11002 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 11003#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 11004
f84f771d 11005static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 11006 struct genl_info *info)
11007{
11008 struct cfg80211_registered_device *rdev;
89a54e48 11009 struct wireless_dev *wdev;
4c476991 11010 struct net_device *dev;
4c476991
JB		 11011 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
11012
11013 if (rtnl)
11014 rtnl_lock();
11015
11016 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 11017 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 11018 if (IS_ERR(rdev)) {
11019 if (rtnl)
11020 rtnl_unlock();
11021 return PTR_ERR(rdev);
11022 }
11023 info->user_ptr[0] = rdev;
1bf614ef
JB		 11024 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
11025 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 11026 ASSERT_RTNL();
11027
89a54e48
JB		 11028 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
11029 info->attrs);
11030 if (IS_ERR(wdev)) {
4c476991
JB		 11031 if (rtnl)
11032 rtnl_unlock();
89a54e48 11033 return PTR_ERR(wdev);
4c476991 11034 }
89a54e48 11035
89a54e48 11036 dev = wdev->netdev;
f26cbf40 11037 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 11038
1bf614ef
JB		 11039 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
11040 if (!dev) {
1bf614ef
JB		 11041 if (rtnl)
11042 rtnl_unlock();
11043 return -EINVAL;
11044 }
11045
11046 info->user_ptr[1] = dev;
11047 } else {
11048 info->user_ptr[1] = wdev;
41265714 11049 }
1bf614ef
JB		 11050
11051 if (dev) {
11052 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
11053 !netif_running(dev)) {
1bf614ef
JB		 11054 if (rtnl)
11055 rtnl_unlock();
11056 return -ENETDOWN;
11057 }
11058
11059 dev_hold(dev);
98104fde
JB		 11060 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
11061 if (!wdev->p2p_started) {
98104fde
JB		 11062 if (rtnl)
11063 rtnl_unlock();
11064 return -ENETDOWN;
11065 }
41265714 11066 }
89a54e48 11067
4c476991 11068 info->user_ptr[0] = rdev;
4c476991
JB		 11069 }
11070
11071 return 0;
11072}
11073
f84f771d 11074static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 11075 struct genl_info *info)
11076{
1bf614ef
JB		 11077 if (info->user_ptr[1]) {
11078 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
11079 struct wireless_dev *wdev = info->user_ptr[1];
11080
11081 if (wdev->netdev)
11082 dev_put(wdev->netdev);
11083 } else {
11084 dev_put(info->user_ptr[1]);
11085 }
11086 }
5393b917 11087
4c476991
JB		 11088 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
11089 rtnl_unlock();
5393b917
JB		 11090
11091 /* If needed, clear the netlink message payload from the SKB
11092 * as it might contain key data that shouldn't stick around on
11093 * the heap after the SKB is freed. The netlink message header
11094 * is still needed for further processing, so leave it intact.
11095 */
11096 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
11097 struct nlmsghdr *nlh = nlmsg_hdr(skb);
11098
11099 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
11100 }
4c476991
JB		 11101}
11102
4534de83 11103static const struct genl_ops nl80211_ops[] = {
55682965
JB		 11104 {
11105 .cmd = NL80211_CMD_GET_WIPHY,
11106 .doit = nl80211_get_wiphy,
11107 .dumpit = nl80211_dump_wiphy,
86e8cf98 11108 .done = nl80211_dump_wiphy_done,
55682965
JB		 11109 .policy = nl80211_policy,
11110 /* can be retrieved by unprivileged users */
5fe231e8
JB		 11111 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11112 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11113 },
11114 {
11115 .cmd = NL80211_CMD_SET_WIPHY,
11116 .doit = nl80211_set_wiphy,
11117 .policy = nl80211_policy,
5617c6cd 11118 .flags = GENL_UNS_ADMIN_PERM,
4c476991 11119 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 11120 },
11121 {
11122 .cmd = NL80211_CMD_GET_INTERFACE,
11123 .doit = nl80211_get_interface,
11124 .dumpit = nl80211_dump_interface,
11125 .policy = nl80211_policy,
11126 /* can be retrieved by unprivileged users */
5fe231e8
JB		 11127 .internal_flags = NL80211_FLAG_NEED_WDEV |
11128 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11129 },
11130 {
11131 .cmd = NL80211_CMD_SET_INTERFACE,
11132 .doit = nl80211_set_interface,
11133 .policy = nl80211_policy,
5617c6cd 11134 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11135 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11136 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11137 },
11138 {
11139 .cmd = NL80211_CMD_NEW_INTERFACE,
11140 .doit = nl80211_new_interface,
11141 .policy = nl80211_policy,
5617c6cd 11142 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11143 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11144 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11145 },
11146 {
11147 .cmd = NL80211_CMD_DEL_INTERFACE,
11148 .doit = nl80211_del_interface,
11149 .policy = nl80211_policy,
5617c6cd 11150 .flags = GENL_UNS_ADMIN_PERM,
84efbb84 11151 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11152 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11153 },
11154 {
11155 .cmd = NL80211_CMD_GET_KEY,
11156 .doit = nl80211_get_key,
11157 .policy = nl80211_policy,
5617c6cd 11158 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11159 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11160 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11161 },
11162 {
11163 .cmd = NL80211_CMD_SET_KEY,
11164 .doit = nl80211_set_key,
11165 .policy = nl80211_policy,
5617c6cd 11166 .flags = GENL_UNS_ADMIN_PERM,
41265714 11167 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11168 NL80211_FLAG_NEED_RTNL |
11169 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 11170 },
11171 {
11172 .cmd = NL80211_CMD_NEW_KEY,
11173 .doit = nl80211_new_key,
11174 .policy = nl80211_policy,
5617c6cd 11175 .flags = GENL_UNS_ADMIN_PERM,
41265714 11176 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11177 NL80211_FLAG_NEED_RTNL |
11178 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 11179 },
11180 {
11181 .cmd = NL80211_CMD_DEL_KEY,
11182 .doit = nl80211_del_key,
11183 .policy = nl80211_policy,
5617c6cd 11184 .flags = GENL_UNS_ADMIN_PERM,
41265714 11185 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11186 NL80211_FLAG_NEED_RTNL,
55682965 11187 },
ed1b6cc7
JB		 11188 {
11189 .cmd = NL80211_CMD_SET_BEACON,
11190 .policy = nl80211_policy,
5617c6cd 11191 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11192 .doit = nl80211_set_beacon,
2b5f8b0b 11193 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11194 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11195 },
11196 {
8860020e 11197 .cmd = NL80211_CMD_START_AP,
ed1b6cc7 11198 .policy = nl80211_policy,
5617c6cd 11199 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11200 .doit = nl80211_start_ap,
2b5f8b0b 11201 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11202 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11203 },
11204 {
8860020e 11205 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7 11206 .policy = nl80211_policy,
5617c6cd 11207 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11208 .doit = nl80211_stop_ap,
2b5f8b0b 11209 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11210 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 11211 },
5727ef1b
JB		 11212 {
11213 .cmd = NL80211_CMD_GET_STATION,
11214 .doit = nl80211_get_station,
2ec600d6 11215 .dumpit = nl80211_dump_station,
5727ef1b 11216 .policy = nl80211_policy,
4c476991
JB		 11217 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11218 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11219 },
11220 {
11221 .cmd = NL80211_CMD_SET_STATION,
11222 .doit = nl80211_set_station,
11223 .policy = nl80211_policy,
5617c6cd 11224 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11225 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11226 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11227 },
11228 {
11229 .cmd = NL80211_CMD_NEW_STATION,
11230 .doit = nl80211_new_station,
11231 .policy = nl80211_policy,
5617c6cd 11232 .flags = GENL_UNS_ADMIN_PERM,
41265714 11233 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11234 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11235 },
11236 {
11237 .cmd = NL80211_CMD_DEL_STATION,
11238 .doit = nl80211_del_station,
11239 .policy = nl80211_policy,
5617c6cd 11240 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11241 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11242 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11243 },
11244 {
11245 .cmd = NL80211_CMD_GET_MPATH,
11246 .doit = nl80211_get_mpath,
11247 .dumpit = nl80211_dump_mpath,
11248 .policy = nl80211_policy,
5617c6cd 11249 .flags = GENL_UNS_ADMIN_PERM,
41265714 11250 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11251 NL80211_FLAG_NEED_RTNL,
2ec600d6 11252 },
66be7d2b
HR		 11253 {
11254 .cmd = NL80211_CMD_GET_MPP,
11255 .doit = nl80211_get_mpp,
11256 .dumpit = nl80211_dump_mpp,
11257 .policy = nl80211_policy,
5617c6cd 11258 .flags = GENL_UNS_ADMIN_PERM,
66be7d2b
HR		 11259 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11260 NL80211_FLAG_NEED_RTNL,
11261 },
2ec600d6
LCC		 11262 {
11263 .cmd = NL80211_CMD_SET_MPATH,
11264 .doit = nl80211_set_mpath,
11265 .policy = nl80211_policy,
5617c6cd 11266 .flags = GENL_UNS_ADMIN_PERM,
41265714 11267 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11268 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11269 },
11270 {
11271 .cmd = NL80211_CMD_NEW_MPATH,
11272 .doit = nl80211_new_mpath,
11273 .policy = nl80211_policy,
5617c6cd 11274 .flags = GENL_UNS_ADMIN_PERM,
41265714 11275 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11276 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11277 },
11278 {
11279 .cmd = NL80211_CMD_DEL_MPATH,
11280 .doit = nl80211_del_mpath,
11281 .policy = nl80211_policy,
5617c6cd 11282 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11283 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11284 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 11285 },
11286 {
11287 .cmd = NL80211_CMD_SET_BSS,
11288 .doit = nl80211_set_bss,
11289 .policy = nl80211_policy,
5617c6cd 11290 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11291 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11292 NL80211_FLAG_NEED_RTNL,
b2e1b302 11293 },
f130347c
LR		 11294 {
11295 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 11296 .doit = nl80211_get_reg_do,
11297 .dumpit = nl80211_get_reg_dump,
f130347c 11298 .policy = nl80211_policy,
5fe231e8 11299 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 11300 /* can be retrieved by unprivileged users */
11301 },
b6863036 11302#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 11303 {
11304 .cmd = NL80211_CMD_SET_REG,
11305 .doit = nl80211_set_reg,
11306 .policy = nl80211_policy,
11307 .flags = GENL_ADMIN_PERM,
5fe231e8 11308 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 11309 },
b6863036 11310#endif
b2e1b302
LR		 11311 {
11312 .cmd = NL80211_CMD_REQ_SET_REG,
11313 .doit = nl80211_req_set_reg,
11314 .policy = nl80211_policy,
93da9cc1 11315 .flags = GENL_ADMIN_PERM,
11316 },
11317 {
24bdd9f4
JC		 11318 .cmd = NL80211_CMD_GET_MESH_CONFIG,
11319 .doit = nl80211_get_mesh_config,
93da9cc1 11320 .policy = nl80211_policy,
11321 /* can be retrieved by unprivileged users */
2b5f8b0b 11322 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11323 NL80211_FLAG_NEED_RTNL,
93da9cc1 11324 },
11325 {
24bdd9f4
JC		 11326 .cmd = NL80211_CMD_SET_MESH_CONFIG,
11327 .doit = nl80211_update_mesh_config,
93da9cc1 11328 .policy = nl80211_policy,
5617c6cd 11329 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c 11330 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11331 NL80211_FLAG_NEED_RTNL,
9aed3cc1 11332 },
2a519311
JB		 11333 {
11334 .cmd = NL80211_CMD_TRIGGER_SCAN,
11335 .doit = nl80211_trigger_scan,
11336 .policy = nl80211_policy,
5617c6cd 11337 .flags = GENL_UNS_ADMIN_PERM,
fd014284 11338 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11339 NL80211_FLAG_NEED_RTNL,
2a519311 11340 },
91d3ab46
VK		 11341 {
11342 .cmd = NL80211_CMD_ABORT_SCAN,
11343 .doit = nl80211_abort_scan,
11344 .policy = nl80211_policy,
5617c6cd 11345 .flags = GENL_UNS_ADMIN_PERM,
91d3ab46
VK		 11346 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11347 NL80211_FLAG_NEED_RTNL,
11348 },
2a519311
JB		 11349 {
11350 .cmd = NL80211_CMD_GET_SCAN,
11351 .policy = nl80211_policy,
11352 .dumpit = nl80211_dump_scan,
11353 },
807f8a8c
LC		 11354 {
11355 .cmd = NL80211_CMD_START_SCHED_SCAN,
11356 .doit = nl80211_start_sched_scan,
11357 .policy = nl80211_policy,
5617c6cd 11358 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 11359 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11360 NL80211_FLAG_NEED_RTNL,
11361 },
11362 {
11363 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
11364 .doit = nl80211_stop_sched_scan,
11365 .policy = nl80211_policy,
5617c6cd 11366 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 11367 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11368 NL80211_FLAG_NEED_RTNL,
11369 },
636a5d36
JM		 11370 {
11371 .cmd = NL80211_CMD_AUTHENTICATE,
11372 .doit = nl80211_authenticate,
11373 .policy = nl80211_policy,
5617c6cd 11374 .flags = GENL_UNS_ADMIN_PERM,
41265714 11375 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11376 NL80211_FLAG_NEED_RTNL |
11377 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 11378 },
11379 {
11380 .cmd = NL80211_CMD_ASSOCIATE,
11381 .doit = nl80211_associate,
11382 .policy = nl80211_policy,
5617c6cd 11383 .flags = GENL_UNS_ADMIN_PERM,
41265714 11384 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11385 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11386 },
11387 {
11388 .cmd = NL80211_CMD_DEAUTHENTICATE,
11389 .doit = nl80211_deauthenticate,
11390 .policy = nl80211_policy,
5617c6cd 11391 .flags = GENL_UNS_ADMIN_PERM,
41265714 11392 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11393 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11394 },
11395 {
11396 .cmd = NL80211_CMD_DISASSOCIATE,
11397 .doit = nl80211_disassociate,
11398 .policy = nl80211_policy,
5617c6cd 11399 .flags = GENL_UNS_ADMIN_PERM,
41265714 11400 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11401 NL80211_FLAG_NEED_RTNL,
636a5d36 11402 },
04a773ad
JB		 11403 {
11404 .cmd = NL80211_CMD_JOIN_IBSS,
11405 .doit = nl80211_join_ibss,
11406 .policy = nl80211_policy,
5617c6cd 11407 .flags = GENL_UNS_ADMIN_PERM,
41265714 11408 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11409 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 11410 },
11411 {
11412 .cmd = NL80211_CMD_LEAVE_IBSS,
11413 .doit = nl80211_leave_ibss,
11414 .policy = nl80211_policy,
5617c6cd 11415 .flags = GENL_UNS_ADMIN_PERM,
41265714 11416 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11417 NL80211_FLAG_NEED_RTNL,
04a773ad 11418 },
aff89a9b
JB		 11419#ifdef CONFIG_NL80211_TESTMODE
11420 {
11421 .cmd = NL80211_CMD_TESTMODE,
11422 .doit = nl80211_testmode_do,
71063f0e 11423 .dumpit = nl80211_testmode_dump,
aff89a9b 11424 .policy = nl80211_policy,
5617c6cd 11425 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11426 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11427 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 11428 },
11429#endif
b23aa676
SO		 11430 {
11431 .cmd = NL80211_CMD_CONNECT,
11432 .doit = nl80211_connect,
11433 .policy = nl80211_policy,
5617c6cd 11434 .flags = GENL_UNS_ADMIN_PERM,
41265714 11435 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11436 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 11437 },
11438 {
11439 .cmd = NL80211_CMD_DISCONNECT,
11440 .doit = nl80211_disconnect,
11441 .policy = nl80211_policy,
5617c6cd 11442 .flags = GENL_UNS_ADMIN_PERM,
41265714 11443 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11444 NL80211_FLAG_NEED_RTNL,
b23aa676 11445 },
463d0183
JB		 11446 {
11447 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11448 .doit = nl80211_wiphy_netns,
11449 .policy = nl80211_policy,
5617c6cd 11450 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11451 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11452 NL80211_FLAG_NEED_RTNL,
463d0183 11453 },
61fa713c
HS		 11454 {
11455 .cmd = NL80211_CMD_GET_SURVEY,
11456 .policy = nl80211_policy,
11457 .dumpit = nl80211_dump_survey,
11458 },
67fbb16b
SO		 11459 {
11460 .cmd = NL80211_CMD_SET_PMKSA,
11461 .doit = nl80211_setdel_pmksa,
11462 .policy = nl80211_policy,
5617c6cd 11463 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11464 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11465 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11466 },
11467 {
11468 .cmd = NL80211_CMD_DEL_PMKSA,
11469 .doit = nl80211_setdel_pmksa,
11470 .policy = nl80211_policy,
5617c6cd 11471 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11472 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11473 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11474 },
11475 {
11476 .cmd = NL80211_CMD_FLUSH_PMKSA,
11477 .doit = nl80211_flush_pmksa,
11478 .policy = nl80211_policy,
5617c6cd 11479 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11480 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11481 NL80211_FLAG_NEED_RTNL,
67fbb16b 11482 },
9588bbd5
JM		 11483 {
11484 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11485 .doit = nl80211_remain_on_channel,
11486 .policy = nl80211_policy,
5617c6cd 11487 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11488 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11489 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 11490 },
11491 {
11492 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11493 .doit = nl80211_cancel_remain_on_channel,
11494 .policy = nl80211_policy,
5617c6cd 11495 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11496 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11497 NL80211_FLAG_NEED_RTNL,
9588bbd5 11498 },
13ae75b1
JM		 11499 {
11500 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11501 .doit = nl80211_set_tx_bitrate_mask,
11502 .policy = nl80211_policy,
5617c6cd 11503 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11504 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11505 NL80211_FLAG_NEED_RTNL,
13ae75b1 11506 },
026331c4 11507 {
2e161f78
JB		 11508 .cmd = NL80211_CMD_REGISTER_FRAME,
11509 .doit = nl80211_register_mgmt,
026331c4 11510 .policy = nl80211_policy,
5617c6cd 11511 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11512 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11513 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 11514 },
11515 {
2e161f78
JB		 11516 .cmd = NL80211_CMD_FRAME,
11517 .doit = nl80211_tx_mgmt,
026331c4 11518 .policy = nl80211_policy,
5617c6cd 11519 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11520 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 11521 NL80211_FLAG_NEED_RTNL,
11522 },
11523 {
11524 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11525 .doit = nl80211_tx_mgmt_cancel_wait,
11526 .policy = nl80211_policy,
5617c6cd 11527 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11528 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11529 NL80211_FLAG_NEED_RTNL,
026331c4 11530 },
ffb9eb3d
KV		 11531 {
11532 .cmd = NL80211_CMD_SET_POWER_SAVE,
11533 .doit = nl80211_set_power_save,
11534 .policy = nl80211_policy,
5617c6cd 11535 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11536 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11537 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 11538 },
11539 {
11540 .cmd = NL80211_CMD_GET_POWER_SAVE,
11541 .doit = nl80211_get_power_save,
11542 .policy = nl80211_policy,
11543 /* can be retrieved by unprivileged users */
4c476991
JB		 11544 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11545 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 11546 },
d6dc1a38
JO		 11547 {
11548 .cmd = NL80211_CMD_SET_CQM,
11549 .doit = nl80211_set_cqm,
11550 .policy = nl80211_policy,
5617c6cd 11551 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11552 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11553 NL80211_FLAG_NEED_RTNL,
d6dc1a38 11554 },
f444de05
JB		 11555 {
11556 .cmd = NL80211_CMD_SET_CHANNEL,
11557 .doit = nl80211_set_channel,
11558 .policy = nl80211_policy,
5617c6cd 11559 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11560 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11561 NL80211_FLAG_NEED_RTNL,
f444de05 11562 },
e8347eba
BJ		 11563 {
11564 .cmd = NL80211_CMD_SET_WDS_PEER,
11565 .doit = nl80211_set_wds_peer,
11566 .policy = nl80211_policy,
5617c6cd 11567 .flags = GENL_UNS_ADMIN_PERM,
43b19952
JB		 11568 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11569 NL80211_FLAG_NEED_RTNL,
e8347eba 11570 },
29cbe68c
JB		 11571 {
11572 .cmd = NL80211_CMD_JOIN_MESH,
11573 .doit = nl80211_join_mesh,
11574 .policy = nl80211_policy,
5617c6cd 11575 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 11576 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11577 NL80211_FLAG_NEED_RTNL,
11578 },
11579 {
11580 .cmd = NL80211_CMD_LEAVE_MESH,
11581 .doit = nl80211_leave_mesh,
11582 .policy = nl80211_policy,
5617c6cd 11583 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 11584 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11585 NL80211_FLAG_NEED_RTNL,
11586 },
6e0bd6c3
RL		 11587 {
11588 .cmd = NL80211_CMD_JOIN_OCB,
11589 .doit = nl80211_join_ocb,
11590 .policy = nl80211_policy,
5617c6cd 11591 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 11592 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11593 NL80211_FLAG_NEED_RTNL,
11594 },
11595 {
11596 .cmd = NL80211_CMD_LEAVE_OCB,
11597 .doit = nl80211_leave_ocb,
11598 .policy = nl80211_policy,
5617c6cd 11599 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 11600 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11601 NL80211_FLAG_NEED_RTNL,
11602 },
dfb89c56 11603#ifdef CONFIG_PM
ff1b6e69
JB		 11604 {
11605 .cmd = NL80211_CMD_GET_WOWLAN,
11606 .doit = nl80211_get_wowlan,
11607 .policy = nl80211_policy,
11608 /* can be retrieved by unprivileged users */
11609 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11610 NL80211_FLAG_NEED_RTNL,
11611 },
11612 {
11613 .cmd = NL80211_CMD_SET_WOWLAN,
11614 .doit = nl80211_set_wowlan,
11615 .policy = nl80211_policy,
5617c6cd 11616 .flags = GENL_UNS_ADMIN_PERM,
ff1b6e69
JB		 11617 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11618 NL80211_FLAG_NEED_RTNL,
11619 },
dfb89c56 11620#endif
e5497d76
JB		 11621 {
11622 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11623 .doit = nl80211_set_rekey_data,
11624 .policy = nl80211_policy,
5617c6cd 11625 .flags = GENL_UNS_ADMIN_PERM,
e5497d76 11626 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11627 NL80211_FLAG_NEED_RTNL |
11628 NL80211_FLAG_CLEAR_SKB,
e5497d76 11629 },
109086ce
AN		 11630 {
11631 .cmd = NL80211_CMD_TDLS_MGMT,
11632 .doit = nl80211_tdls_mgmt,
11633 .policy = nl80211_policy,
5617c6cd 11634 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 11635 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11636 NL80211_FLAG_NEED_RTNL,
11637 },
11638 {
11639 .cmd = NL80211_CMD_TDLS_OPER,
11640 .doit = nl80211_tdls_oper,
11641 .policy = nl80211_policy,
5617c6cd 11642 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 11643 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11644 NL80211_FLAG_NEED_RTNL,
11645 },
28946da7
JB		 11646 {
11647 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11648 .doit = nl80211_register_unexpected_frame,
11649 .policy = nl80211_policy,
5617c6cd 11650 .flags = GENL_UNS_ADMIN_PERM,
28946da7
JB		 11651 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11652 NL80211_FLAG_NEED_RTNL,
11653 },
7f6cf311
JB		 11654 {
11655 .cmd = NL80211_CMD_PROBE_CLIENT,
11656 .doit = nl80211_probe_client,
11657 .policy = nl80211_policy,
5617c6cd 11658 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11659 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 11660 NL80211_FLAG_NEED_RTNL,
11661 },
5e760230
JB		 11662 {
11663 .cmd = NL80211_CMD_REGISTER_BEACONS,
11664 .doit = nl80211_register_beacons,
11665 .policy = nl80211_policy,
5617c6cd 11666 .flags = GENL_UNS_ADMIN_PERM,
5e760230
JB		 11667 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11668 NL80211_FLAG_NEED_RTNL,
11669 },
1d9d9213
SW		 11670 {
11671 .cmd = NL80211_CMD_SET_NOACK_MAP,
11672 .doit = nl80211_set_noack_map,
11673 .policy = nl80211_policy,
5617c6cd 11674 .flags = GENL_UNS_ADMIN_PERM,
1d9d9213
SW		 11675 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11676 NL80211_FLAG_NEED_RTNL,
11677 },
98104fde
JB		 11678 {
11679 .cmd = NL80211_CMD_START_P2P_DEVICE,
11680 .doit = nl80211_start_p2p_device,
11681 .policy = nl80211_policy,
5617c6cd 11682 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 11683 .internal_flags = NL80211_FLAG_NEED_WDEV |
11684 NL80211_FLAG_NEED_RTNL,
11685 },
11686 {
11687 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11688 .doit = nl80211_stop_p2p_device,
11689 .policy = nl80211_policy,
5617c6cd 11690 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 11691 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11692 NL80211_FLAG_NEED_RTNL,
11693 },
f4e583c8
AQ		 11694 {
11695 .cmd = NL80211_CMD_SET_MCAST_RATE,
11696 .doit = nl80211_set_mcast_rate,
77765eaf 11697 .policy = nl80211_policy,
5617c6cd 11698 .flags = GENL_UNS_ADMIN_PERM,
77765eaf
VT		 11699 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11700 NL80211_FLAG_NEED_RTNL,
11701 },
11702 {
11703 .cmd = NL80211_CMD_SET_MAC_ACL,
11704 .doit = nl80211_set_mac_acl,
f4e583c8 11705 .policy = nl80211_policy,
5617c6cd 11706 .flags = GENL_UNS_ADMIN_PERM,
f4e583c8
AQ		 11707 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11708 NL80211_FLAG_NEED_RTNL,
11709 },
04f39047
SW		 11710 {
11711 .cmd = NL80211_CMD_RADAR_DETECT,
11712 .doit = nl80211_start_radar_detection,
11713 .policy = nl80211_policy,
5617c6cd 11714 .flags = GENL_UNS_ADMIN_PERM,
04f39047
SW		 11715 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11716 NL80211_FLAG_NEED_RTNL,
11717 },
3713b4e3
JB		 11718 {
11719 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11720 .doit = nl80211_get_protocol_features,
11721 .policy = nl80211_policy,
11722 },
355199e0
JM		 11723 {
11724 .cmd = NL80211_CMD_UPDATE_FT_IES,
11725 .doit = nl80211_update_ft_ies,
11726 .policy = nl80211_policy,
5617c6cd 11727 .flags = GENL_UNS_ADMIN_PERM,
355199e0
JM		 11728 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11729 NL80211_FLAG_NEED_RTNL,
11730 },
5de17984
AS		 11731 {
11732 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11733 .doit = nl80211_crit_protocol_start,
11734 .policy = nl80211_policy,
5617c6cd 11735 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 11736 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11737 NL80211_FLAG_NEED_RTNL,
11738 },
11739 {
11740 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11741 .doit = nl80211_crit_protocol_stop,
11742 .policy = nl80211_policy,
5617c6cd 11743 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 11744 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11745 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 11746 },
11747 {
11748 .cmd = NL80211_CMD_GET_COALESCE,
11749 .doit = nl80211_get_coalesce,
11750 .policy = nl80211_policy,
11751 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11752 NL80211_FLAG_NEED_RTNL,
11753 },
11754 {
11755 .cmd = NL80211_CMD_SET_COALESCE,
11756 .doit = nl80211_set_coalesce,
11757 .policy = nl80211_policy,
5617c6cd 11758 .flags = GENL_UNS_ADMIN_PERM,
be29b99a
AK		 11759 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11760 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 11761 },
11762 {
11763 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11764 .doit = nl80211_channel_switch,
11765 .policy = nl80211_policy,
5617c6cd 11766 .flags = GENL_UNS_ADMIN_PERM,
16ef1fe2
SW		 11767 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11768 NL80211_FLAG_NEED_RTNL,
11769 },
ad7e718c
JB		 11770 {
11771 .cmd = NL80211_CMD_VENDOR,
11772 .doit = nl80211_vendor_cmd,
7bdbe400 11773 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c 11774 .policy = nl80211_policy,
5617c6cd 11775 .flags = GENL_UNS_ADMIN_PERM,
ad7e718c
JB		 11776 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11777 NL80211_FLAG_NEED_RTNL,
11778 },
fa9ffc74
KP		 11779 {
11780 .cmd = NL80211_CMD_SET_QOS_MAP,
11781 .doit = nl80211_set_qos_map,
11782 .policy = nl80211_policy,
5617c6cd 11783 .flags = GENL_UNS_ADMIN_PERM,
fa9ffc74
KP		 11784 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11785 NL80211_FLAG_NEED_RTNL,
11786 },
960d01ac
JB		 11787 {
11788 .cmd = NL80211_CMD_ADD_TX_TS,
11789 .doit = nl80211_add_tx_ts,
11790 .policy = nl80211_policy,
5617c6cd 11791 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 11792 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11793 NL80211_FLAG_NEED_RTNL,
11794 },
11795 {
11796 .cmd = NL80211_CMD_DEL_TX_TS,
11797 .doit = nl80211_del_tx_ts,
11798 .policy = nl80211_policy,
5617c6cd 11799 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 11800 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11801 NL80211_FLAG_NEED_RTNL,
11802 },
1057d35e
AN		 11803 {
11804 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11805 .doit = nl80211_tdls_channel_switch,
11806 .policy = nl80211_policy,
5617c6cd 11807 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 11808 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11809 NL80211_FLAG_NEED_RTNL,
11810 },
11811 {
11812 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11813 .doit = nl80211_tdls_cancel_channel_switch,
11814 .policy = nl80211_policy,
5617c6cd 11815 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 11816 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11817 NL80211_FLAG_NEED_RTNL,
11818 },
55682965 11819};
9588bbd5 11820
55682965
JB		 11821/* notification functions */
11822
3bb20556
JB		 11823void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11824 enum nl80211_commands cmd)
55682965
JB		 11825{
11826 struct sk_buff *msg;
86e8cf98 11827 struct nl80211_dump_wiphy_state state = {};
55682965 11828
3bb20556
JB		 11829 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11830 cmd != NL80211_CMD_DEL_WIPHY);
11831
fd2120ca 11832 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 11833 if (!msg)
11834 return;
11835
3bb20556 11836 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 11837 nlmsg_free(msg);
11838 return;
11839 }
11840
68eb5503 11841 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11842 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 11843}
11844
896ff063
DK		 11845void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
11846 struct wireless_dev *wdev,
11847 enum nl80211_commands cmd)
11848{
11849 struct sk_buff *msg;
11850
11851 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
11852 cmd != NL80211_CMD_DEL_INTERFACE);
11853
11854 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11855 if (!msg)
11856 return;
11857
11858 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
11859 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
11860 nlmsg_free(msg);
11861 return;
11862 }
11863
11864 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11865 NL80211_MCGRP_CONFIG, GFP_KERNEL);
11866}
11867
362a415d
JB		 11868static int nl80211_add_scan_req(struct sk_buff *msg,
11869 struct cfg80211_registered_device *rdev)
11870{
11871 struct cfg80211_scan_request *req = rdev->scan_req;
11872 struct nlattr *nest;
11873 int i;
11874
11875 if (WARN_ON(!req))
11876 return 0;
11877
11878 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11879 if (!nest)
11880 goto nla_put_failure;
9360ffd1
DM		 11881 for (i = 0; i < req->n_ssids; i++) {
11882 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11883 goto nla_put_failure;
11884 }
362a415d
JB		 11885 nla_nest_end(msg, nest);
11886
11887 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11888 if (!nest)
11889 goto nla_put_failure;
9360ffd1
DM		 11890 for (i = 0; i < req->n_channels; i++) {
11891 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11892 goto nla_put_failure;
11893 }
362a415d
JB		 11894 nla_nest_end(msg, nest);
11895
9360ffd1
DM		 11896 if (req->ie &&
11897 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11898 goto nla_put_failure;
362a415d 11899
ae917c9f
JB		 11900 if (req->flags &&
11901 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11902 goto nla_put_failure;
ed473771 11903
1d76250b
AS		 11904 if (req->info.scan_start_tsf &&
11905 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
11906 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
11907 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
11908 req->info.tsf_bssid)))
11909 goto nla_put_failure;
11910
362a415d
JB		 11911 return 0;
11912 nla_put_failure:
11913 return -ENOBUFS;
11914}
11915
a538e2d5
JB		 11916static int nl80211_send_scan_msg(struct sk_buff *msg,
11917 struct cfg80211_registered_device *rdev,
fd014284 11918 struct wireless_dev *wdev,
15e47304 11919 u32 portid, u32 seq, int flags,
a538e2d5 11920 u32 cmd)
2a519311
JB		 11921{
11922 void *hdr;
11923
15e47304 11924 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11925 if (!hdr)
11926 return -1;
11927
9360ffd1 11928 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11929 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11930 wdev->netdev->ifindex)) ||
2dad624e
ND		 11931 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11932 NL80211_ATTR_PAD))
9360ffd1 11933 goto nla_put_failure;
2a519311 11934
362a415d
JB		 11935 /* ignore errors and send incomplete event anyway */
11936 nl80211_add_scan_req(msg, rdev);
2a519311 11937
053c095a
JB		 11938 genlmsg_end(msg, hdr);
11939 return 0;
2a519311
JB		 11940
11941 nla_put_failure:
11942 genlmsg_cancel(msg, hdr);
11943 return -EMSGSIZE;
11944}
11945
807f8a8c
LC		 11946static int
11947nl80211_send_sched_scan_msg(struct sk_buff *msg,
11948 struct cfg80211_registered_device *rdev,
11949 struct net_device *netdev,
15e47304 11950 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 11951{
11952 void *hdr;
11953
15e47304 11954 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 11955 if (!hdr)
11956 return -1;
11957
9360ffd1
DM		 11958 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11959 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11960 goto nla_put_failure;
807f8a8c 11961
053c095a
JB		 11962 genlmsg_end(msg, hdr);
11963 return 0;
807f8a8c
LC		 11964
11965 nla_put_failure:
11966 genlmsg_cancel(msg, hdr);
11967 return -EMSGSIZE;
11968}
11969
a538e2d5 11970void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 11971 struct wireless_dev *wdev)
a538e2d5
JB		 11972{
11973 struct sk_buff *msg;
11974
58050fce 11975 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 11976 if (!msg)
11977 return;
11978
fd014284 11979 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11980 NL80211_CMD_TRIGGER_SCAN) < 0) {
11981 nlmsg_free(msg);
11982 return;
11983 }
11984
68eb5503 11985 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11986 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11987}
11988
f9d15d16
JB		 11989struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11990 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11991{
11992 struct sk_buff *msg;
11993
fd2120ca 11994 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11995 if (!msg)
f9d15d16 11996 return NULL;
2a519311 11997
fd014284 11998 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11999 aborted ? NL80211_CMD_SCAN_ABORTED :
12000 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 12001 nlmsg_free(msg);
f9d15d16 12002 return NULL;
2a519311
JB		 12003 }
12004
f9d15d16 12005 return msg;
2a519311
JB		 12006}
12007
f9d15d16
JB		 12008void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
12009 struct sk_buff *msg)
2a519311 12010{
2a519311
JB		 12011 if (!msg)
12012 return;
12013
68eb5503 12014 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12015 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 12016}
12017
807f8a8c
LC		 12018void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
12019 struct net_device *netdev)
12020{
12021 struct sk_buff *msg;
12022
12023 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12024 if (!msg)
12025 return;
12026
12027 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
12028 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
12029 nlmsg_free(msg);
12030 return;
12031 }
12032
68eb5503 12033 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12034 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 12035}
12036
12037void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
12038 struct net_device *netdev, u32 cmd)
12039{
12040 struct sk_buff *msg;
12041
58050fce 12042 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 12043 if (!msg)
12044 return;
12045
12046 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
12047 nlmsg_free(msg);
12048 return;
12049 }
12050
68eb5503 12051 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12052 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 12053}
12054
b0d7aa59
JD		 12055static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
12056 struct regulatory_request *request)
73d54c9e 12057{
73d54c9e 12058 /* Userspace can always count this one always being set */
9360ffd1
DM		 12059 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
12060 goto nla_put_failure;
12061
12062 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
12063 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12064 NL80211_REGDOM_TYPE_WORLD))
12065 goto nla_put_failure;
12066 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
12067 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12068 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
12069 goto nla_put_failure;
12070 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
12071 request->intersect) {
12072 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12073 NL80211_REGDOM_TYPE_INTERSECTION))
12074 goto nla_put_failure;
12075 } else {
12076 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12077 NL80211_REGDOM_TYPE_COUNTRY) ||
12078 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
12079 request->alpha2))
12080 goto nla_put_failure;
12081 }
12082
ad30ca2c
AN		 12083 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
12084 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
12085
12086 if (wiphy &&
12087 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
12088 goto nla_put_failure;
1bdd716c
AN		 12089
12090 if (wiphy &&
12091 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
12092 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
12093 goto nla_put_failure;
ad30ca2c 12094 }
73d54c9e 12095
b0d7aa59
JD		 12096 return true;
12097
12098nla_put_failure:
12099 return false;
12100}
12101
12102/*
12103 * This can happen on global regulatory changes or device specific settings
12104 * based on custom regulatory domains.
12105 */
12106void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
12107 struct regulatory_request *request)
12108{
12109 struct sk_buff *msg;
12110 void *hdr;
12111
12112 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12113 if (!msg)
12114 return;
12115
12116 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
12117 if (!hdr) {
12118 nlmsg_free(msg);
12119 return;
12120 }
12121
12122 if (nl80211_reg_change_event_fill(msg, request) == false)
12123 goto nla_put_failure;
12124
3b7b72ee 12125 genlmsg_end(msg, hdr);
73d54c9e 12126
bc43b28c 12127 rcu_read_lock();
68eb5503 12128 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12129 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 12130 rcu_read_unlock();
73d54c9e
LR		 12131
12132 return;
12133
12134nla_put_failure:
12135 genlmsg_cancel(msg, hdr);
12136 nlmsg_free(msg);
12137}
12138
6039f6d2
JM		 12139static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
12140 struct net_device *netdev,
12141 const u8 *buf, size_t len,
b0b6aa2c
EP		 12142 enum nl80211_commands cmd, gfp_t gfp,
12143 int uapsd_queues)
6039f6d2
JM		 12144{
12145 struct sk_buff *msg;
12146 void *hdr;
12147
e6d6e342 12148 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 12149 if (!msg)
12150 return;
12151
12152 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12153 if (!hdr) {
12154 nlmsg_free(msg);
12155 return;
12156 }
12157
9360ffd1
DM		 12158 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12159 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12160 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
12161 goto nla_put_failure;
6039f6d2 12162
b0b6aa2c
EP		 12163 if (uapsd_queues >= 0) {
12164 struct nlattr *nla_wmm =
12165 nla_nest_start(msg, NL80211_ATTR_STA_WME);
12166 if (!nla_wmm)
12167 goto nla_put_failure;
12168
12169 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
12170 uapsd_queues))
12171 goto nla_put_failure;
12172
12173 nla_nest_end(msg, nla_wmm);
12174 }
12175
3b7b72ee 12176 genlmsg_end(msg, hdr);
6039f6d2 12177
68eb5503 12178 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12179 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 12180 return;
12181
12182 nla_put_failure:
12183 genlmsg_cancel(msg, hdr);
12184 nlmsg_free(msg);
12185}
12186
12187void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12188 struct net_device *netdev, const u8 *buf,
12189 size_t len, gfp_t gfp)
6039f6d2
JM		 12190{
12191 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12192 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 12193}
12194
12195void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
12196 struct net_device *netdev, const u8 *buf,
b0b6aa2c 12197 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 12198{
e6d6e342 12199 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12200 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 12201}
12202
53b46b84 12203void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12204 struct net_device *netdev, const u8 *buf,
12205 size_t len, gfp_t gfp)
6039f6d2
JM		 12206{
12207 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12208 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 12209}
12210
53b46b84
JM		 12211void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
12212 struct net_device *netdev, const u8 *buf,
e6d6e342 12213 size_t len, gfp_t gfp)
6039f6d2
JM		 12214{
12215 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12216 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 12217}
12218
6ff57cf8
JB		 12219void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
12220 size_t len)
cf4e594e 12221{
947add36
JB		 12222 struct wireless_dev *wdev = dev->ieee80211_ptr;
12223 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12224 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 12225 const struct ieee80211_mgmt *mgmt = (void *)buf;
12226 u32 cmd;
947add36 12227
6ff57cf8
JB		 12228 if (WARN_ON(len < 2))
12229 return;
cf4e594e 12230
6ff57cf8
JB		 12231 if (ieee80211_is_deauth(mgmt->frame_control))
12232 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
12233 else
12234 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 12235
6ff57cf8 12236 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 12237 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 12238}
6ff57cf8 12239EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 12240
1b06bb40
LR		 12241static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
12242 struct net_device *netdev, int cmd,
e6d6e342 12243 const u8 *addr, gfp_t gfp)
1965c853
JM		 12244{
12245 struct sk_buff *msg;
12246 void *hdr;
12247
e6d6e342 12248 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 12249 if (!msg)
12250 return;
12251
12252 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12253 if (!hdr) {
12254 nlmsg_free(msg);
12255 return;
12256 }
12257
9360ffd1
DM		 12258 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12259 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12260 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
12261 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12262 goto nla_put_failure;
1965c853 12263
3b7b72ee 12264 genlmsg_end(msg, hdr);
1965c853 12265
68eb5503 12266 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12267 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 12268 return;
12269
12270 nla_put_failure:
12271 genlmsg_cancel(msg, hdr);
12272 nlmsg_free(msg);
12273}
12274
12275void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12276 struct net_device *netdev, const u8 *addr,
12277 gfp_t gfp)
1965c853
JM		 12278{
12279 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 12280 addr, gfp);
1965c853
JM		 12281}
12282
12283void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12284 struct net_device *netdev, const u8 *addr,
12285 gfp_t gfp)
1965c853 12286{
e6d6e342
JB		 12287 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
12288 addr, gfp);
1965c853
JM		 12289}
12290
b23aa676
SO		 12291void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
12292 struct net_device *netdev, const u8 *bssid,
12293 const u8 *req_ie, size_t req_ie_len,
12294 const u8 *resp_ie, size_t resp_ie_len,
bf1ecd21 12295 int status, gfp_t gfp)
b23aa676
SO		 12296{
12297 struct sk_buff *msg;
12298 void *hdr;
12299
58050fce 12300 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12301 if (!msg)
12302 return;
12303
12304 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
12305 if (!hdr) {
12306 nlmsg_free(msg);
12307 return;
12308 }
12309
9360ffd1
DM		 12310 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12311 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12312 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
bf1ecd21
JM		 12313 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
12314 status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
12315 status) ||
12316 (status < 0 && nla_put_flag(msg, NL80211_ATTR_TIMED_OUT)) ||
9360ffd1
DM		 12317 (req_ie &&
12318 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12319 (resp_ie &&
12320 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12321 goto nla_put_failure;
b23aa676 12322
3b7b72ee 12323 genlmsg_end(msg, hdr);
b23aa676 12324
68eb5503 12325 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12326 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12327 return;
12328
12329 nla_put_failure:
12330 genlmsg_cancel(msg, hdr);
12331 nlmsg_free(msg);
b23aa676
SO		 12332}
12333
12334void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
12335 struct net_device *netdev, const u8 *bssid,
12336 const u8 *req_ie, size_t req_ie_len,
12337 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
12338{
12339 struct sk_buff *msg;
12340 void *hdr;
12341
58050fce 12342 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12343 if (!msg)
12344 return;
12345
12346 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
12347 if (!hdr) {
12348 nlmsg_free(msg);
12349 return;
12350 }
12351
9360ffd1
DM		 12352 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12353 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12354 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
12355 (req_ie &&
12356 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12357 (resp_ie &&
12358 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12359 goto nla_put_failure;
b23aa676 12360
3b7b72ee 12361 genlmsg_end(msg, hdr);
b23aa676 12362
68eb5503 12363 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12364 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12365 return;
12366
12367 nla_put_failure:
12368 genlmsg_cancel(msg, hdr);
12369 nlmsg_free(msg);
b23aa676
SO		 12370}
12371
12372void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
12373 struct net_device *netdev, u16 reason,
667503dd 12374 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 12375{
12376 struct sk_buff *msg;
12377 void *hdr;
12378
58050fce 12379 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 12380 if (!msg)
12381 return;
12382
12383 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
12384 if (!hdr) {
12385 nlmsg_free(msg);
12386 return;
12387 }
12388
9360ffd1
DM		 12389 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12390 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12391 (from_ap && reason &&
12392 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
12393 (from_ap &&
12394 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
12395 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
12396 goto nla_put_failure;
b23aa676 12397
3b7b72ee 12398 genlmsg_end(msg, hdr);
b23aa676 12399
68eb5503 12400 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12401 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 12402 return;
12403
12404 nla_put_failure:
12405 genlmsg_cancel(msg, hdr);
12406 nlmsg_free(msg);
b23aa676
SO		 12407}
12408
04a773ad
JB		 12409void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
12410 struct net_device *netdev, const u8 *bssid,
12411 gfp_t gfp)
12412{
12413 struct sk_buff *msg;
12414 void *hdr;
12415
fd2120ca 12416 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 12417 if (!msg)
12418 return;
12419
12420 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
12421 if (!hdr) {
12422 nlmsg_free(msg);
12423 return;
12424 }
12425
9360ffd1
DM		 12426 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12427 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12428 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12429 goto nla_put_failure;
04a773ad 12430
3b7b72ee 12431 genlmsg_end(msg, hdr);
04a773ad 12432
68eb5503 12433 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12434 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 12435 return;
12436
12437 nla_put_failure:
12438 genlmsg_cancel(msg, hdr);
12439 nlmsg_free(msg);
12440}
12441
947add36
JB		 12442void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12443 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 12444{
947add36 12445 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12446 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 12447 struct sk_buff *msg;
12448 void *hdr;
12449
947add36
JB		 12450 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12451 return;
12452
12453 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12454
c93b5e71
JC		 12455 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12456 if (!msg)
12457 return;
12458
12459 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12460 if (!hdr) {
12461 nlmsg_free(msg);
12462 return;
12463 }
12464
9360ffd1 12465 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 12466 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12467 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 12468 (ie_len && ie &&
12469 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12470 goto nla_put_failure;
c93b5e71 12471
3b7b72ee 12472 genlmsg_end(msg, hdr);
c93b5e71 12473
68eb5503 12474 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12475 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 12476 return;
12477
12478 nla_put_failure:
12479 genlmsg_cancel(msg, hdr);
12480 nlmsg_free(msg);
12481}
947add36 12482EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 12483
a3b8b056
JM		 12484void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12485 struct net_device *netdev, const u8 *addr,
12486 enum nl80211_key_type key_type, int key_id,
e6d6e342 12487 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 12488{
12489 struct sk_buff *msg;
12490 void *hdr;
12491
e6d6e342 12492 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 12493 if (!msg)
12494 return;
12495
12496 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12497 if (!hdr) {
12498 nlmsg_free(msg);
12499 return;
12500 }
12501
9360ffd1
DM		 12502 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12503 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12504 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12505 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12506 (key_id != -1 &&
12507 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12508 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12509 goto nla_put_failure;
a3b8b056 12510
3b7b72ee 12511 genlmsg_end(msg, hdr);
a3b8b056 12512
68eb5503 12513 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12514 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 12515 return;
12516
12517 nla_put_failure:
12518 genlmsg_cancel(msg, hdr);
12519 nlmsg_free(msg);
12520}
12521
6bad8766
LR		 12522void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12523 struct ieee80211_channel *channel_before,
12524 struct ieee80211_channel *channel_after)
12525{
12526 struct sk_buff *msg;
12527 void *hdr;
12528 struct nlattr *nl_freq;
12529
fd2120ca 12530 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 12531 if (!msg)
12532 return;
12533
12534 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12535 if (!hdr) {
12536 nlmsg_free(msg);
12537 return;
12538 }
12539
12540 /*
12541 * Since we are applying the beacon hint to a wiphy we know its
12542 * wiphy_idx is valid
12543 */
9360ffd1
DM		 12544 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12545 goto nla_put_failure;
6bad8766
LR		 12546
12547 /* Before */
12548 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12549 if (!nl_freq)
12550 goto nla_put_failure;
cdc89b97 12551 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 12552 goto nla_put_failure;
12553 nla_nest_end(msg, nl_freq);
12554
12555 /* After */
12556 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12557 if (!nl_freq)
12558 goto nla_put_failure;
cdc89b97 12559 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 12560 goto nla_put_failure;
12561 nla_nest_end(msg, nl_freq);
12562
3b7b72ee 12563 genlmsg_end(msg, hdr);
6bad8766 12564
463d0183 12565 rcu_read_lock();
68eb5503 12566 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12567 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 12568 rcu_read_unlock();
6bad8766
LR		 12569
12570 return;
12571
12572nla_put_failure:
12573 genlmsg_cancel(msg, hdr);
12574 nlmsg_free(msg);
12575}
12576
9588bbd5
JM		 12577static void nl80211_send_remain_on_chan_event(
12578 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 12579 struct wireless_dev *wdev, u64 cookie,
9588bbd5 12580 struct ieee80211_channel *chan,
9588bbd5
JM		 12581 unsigned int duration, gfp_t gfp)
12582{
12583 struct sk_buff *msg;
12584 void *hdr;
12585
12586 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12587 if (!msg)
12588 return;
12589
12590 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12591 if (!hdr) {
12592 nlmsg_free(msg);
12593 return;
12594 }
12595
9360ffd1 12596 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12597 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12598 wdev->netdev->ifindex)) ||
2dad624e
ND		 12599 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12600 NL80211_ATTR_PAD) ||
9360ffd1 12601 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 12602 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12603 NL80211_CHAN_NO_HT) ||
2dad624e
ND		 12604 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12605 NL80211_ATTR_PAD))
9360ffd1 12606 goto nla_put_failure;
9588bbd5 12607
9360ffd1
DM		 12608 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12609 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12610 goto nla_put_failure;
9588bbd5 12611
3b7b72ee 12612 genlmsg_end(msg, hdr);
9588bbd5 12613
68eb5503 12614 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12615 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 12616 return;
12617
12618 nla_put_failure:
12619 genlmsg_cancel(msg, hdr);
12620 nlmsg_free(msg);
12621}
12622
947add36
JB		 12623void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12624 struct ieee80211_channel *chan,
12625 unsigned int duration, gfp_t gfp)
9588bbd5 12626{
947add36 12627 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12628 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12629
12630 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 12631 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 12632 rdev, wdev, cookie, chan,
42d97a59 12633 duration, gfp);
9588bbd5 12634}
947add36 12635EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 12636
947add36
JB		 12637void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12638 struct ieee80211_channel *chan,
12639 gfp_t gfp)
9588bbd5 12640{
947add36 12641 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12642 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12643
12644 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 12645 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 12646 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 12647}
947add36 12648EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 12649
947add36
JB		 12650void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12651 struct station_info *sinfo, gfp_t gfp)
98b62183 12652{
947add36 12653 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12654 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 12655 struct sk_buff *msg;
12656
947add36
JB		 12657 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12658
58050fce 12659 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 12660 if (!msg)
12661 return;
12662
cf5ead82 12663 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 12664 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 12665 nlmsg_free(msg);
12666 return;
12667 }
12668
68eb5503 12669 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12670 NL80211_MCGRP_MLME, gfp);
98b62183 12671}
947add36 12672EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 12673
cf5ead82
JB		 12674void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12675 struct station_info *sinfo, gfp_t gfp)
ec15e68b 12676{
947add36 12677 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12678 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 12679 struct sk_buff *msg;
cf5ead82
JB		 12680 struct station_info empty_sinfo = {};
12681
12682 if (!sinfo)
12683 sinfo = &empty_sinfo;
ec15e68b 12684
947add36
JB		 12685 trace_cfg80211_del_sta(dev, mac_addr);
12686
58050fce 12687 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 12688 if (!msg)
12689 return;
12690
cf5ead82 12691 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 12692 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 12693 nlmsg_free(msg);
12694 return;
12695 }
12696
68eb5503 12697 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12698 NL80211_MCGRP_MLME, gfp);
ec15e68b 12699}
cf5ead82 12700EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 12701
947add36
JB		 12702void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12703 enum nl80211_connect_failed_reason reason,
12704 gfp_t gfp)
ed44a951 12705{
947add36 12706 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12707 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 12708 struct sk_buff *msg;
12709 void *hdr;
12710
12711 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12712 if (!msg)
12713 return;
12714
12715 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12716 if (!hdr) {
12717 nlmsg_free(msg);
12718 return;
12719 }
12720
12721 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12722 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12723 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12724 goto nla_put_failure;
12725
12726 genlmsg_end(msg, hdr);
12727
68eb5503 12728 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12729 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 12730 return;
12731
12732 nla_put_failure:
12733 genlmsg_cancel(msg, hdr);
12734 nlmsg_free(msg);
12735}
947add36 12736EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 12737
b92ab5d8
JB		 12738static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12739 const u8 *addr, gfp_t gfp)
28946da7
JB		 12740{
12741 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12742 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 12743 struct sk_buff *msg;
12744 void *hdr;
15e47304 12745 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 12746
15e47304 12747 if (!nlportid)
28946da7
JB		 12748 return false;
12749
12750 msg = nlmsg_new(100, gfp);
12751 if (!msg)
12752 return true;
12753
b92ab5d8 12754 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 12755 if (!hdr) {
12756 nlmsg_free(msg);
12757 return true;
12758 }
12759
9360ffd1
DM		 12760 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12761 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12762 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12763 goto nla_put_failure;
28946da7 12764
9c90a9f6 12765 genlmsg_end(msg, hdr);
15e47304 12766 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 12767 return true;
12768
12769 nla_put_failure:
12770 genlmsg_cancel(msg, hdr);
12771 nlmsg_free(msg);
12772 return true;
12773}
12774
947add36
JB		 12775bool cfg80211_rx_spurious_frame(struct net_device *dev,
12776 const u8 *addr, gfp_t gfp)
b92ab5d8 12777{
947add36
JB		 12778 struct wireless_dev *wdev = dev->ieee80211_ptr;
12779 bool ret;
12780
12781 trace_cfg80211_rx_spurious_frame(dev, addr);
12782
12783 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12784 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12785 trace_cfg80211_return_bool(false);
12786 return false;
12787 }
12788 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12789 addr, gfp);
12790 trace_cfg80211_return_bool(ret);
12791 return ret;
b92ab5d8 12792}
947add36 12793EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 12794
947add36
JB		 12795bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12796 const u8 *addr, gfp_t gfp)
b92ab5d8 12797{
947add36
JB		 12798 struct wireless_dev *wdev = dev->ieee80211_ptr;
12799 bool ret;
12800
12801 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12802
12803 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12804 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12805 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12806 trace_cfg80211_return_bool(false);
12807 return false;
12808 }
12809 ret = __nl80211_unexpected_frame(dev,
12810 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12811 addr, gfp);
12812 trace_cfg80211_return_bool(ret);
12813 return ret;
b92ab5d8 12814}
947add36 12815EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 12816
2e161f78 12817int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 12818 struct wireless_dev *wdev, u32 nlportid,
804483e9 12819 int freq, int sig_dbm,
19504cf5 12820 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 12821{
71bbc994 12822 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12823 struct sk_buff *msg;
12824 void *hdr;
026331c4
JM		 12825
12826 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12827 if (!msg)
12828 return -ENOMEM;
12829
2e161f78 12830 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 12831 if (!hdr) {
12832 nlmsg_free(msg);
12833 return -ENOMEM;
12834 }
12835
9360ffd1 12836 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12837 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12838 netdev->ifindex)) ||
2dad624e
ND		 12839 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12840 NL80211_ATTR_PAD) ||
9360ffd1
DM		 12841 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12842 (sig_dbm &&
12843 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 12844 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12845 (flags &&
12846 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 12847 goto nla_put_failure;
026331c4 12848
3b7b72ee 12849 genlmsg_end(msg, hdr);
026331c4 12850
15e47304 12851 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 12852
12853 nla_put_failure:
12854 genlmsg_cancel(msg, hdr);
12855 nlmsg_free(msg);
12856 return -ENOBUFS;
12857}
12858
947add36
JB		 12859void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12860 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 12861{
947add36 12862 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12863 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 12864 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12865 struct sk_buff *msg;
12866 void *hdr;
12867
947add36
JB		 12868 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12869
026331c4
JM		 12870 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12871 if (!msg)
12872 return;
12873
2e161f78 12874 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 12875 if (!hdr) {
12876 nlmsg_free(msg);
12877 return;
12878 }
12879
9360ffd1 12880 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12881 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12882 netdev->ifindex)) ||
2dad624e
ND		 12883 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12884 NL80211_ATTR_PAD) ||
9360ffd1 12885 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
2dad624e
ND		 12886 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12887 NL80211_ATTR_PAD) ||
9360ffd1
DM		 12888 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12889 goto nla_put_failure;
026331c4 12890
3b7b72ee 12891 genlmsg_end(msg, hdr);
026331c4 12892
68eb5503 12893 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12894 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 12895 return;
12896
12897 nla_put_failure:
12898 genlmsg_cancel(msg, hdr);
12899 nlmsg_free(msg);
12900}
947add36 12901EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 12902
5b97f49d
JB		 12903static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12904 const char *mac, gfp_t gfp)
d6dc1a38 12905{
947add36 12906 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12907 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12908 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12909 void **cb;
947add36 12910
d6dc1a38 12911 if (!msg)
5b97f49d 12912 return NULL;
d6dc1a38 12913
5b97f49d
JB		 12914 cb = (void **)msg->cb;
12915
12916 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12917 if (!cb[0]) {
d6dc1a38 12918 nlmsg_free(msg);
5b97f49d 12919 return NULL;
d6dc1a38
JO		 12920 }
12921
9360ffd1 12922 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12923 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12924 goto nla_put_failure;
d6dc1a38 12925
5b97f49d 12926 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12927 goto nla_put_failure;
12928
5b97f49d
JB		 12929 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12930 if (!cb[1])
9360ffd1 12931 goto nla_put_failure;
d6dc1a38 12932
5b97f49d 12933 cb[2] = rdev;
d6dc1a38 12934
5b97f49d
JB		 12935 return msg;
12936 nla_put_failure:
12937 nlmsg_free(msg);
12938 return NULL;
12939}
12940
12941static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12942{
12943 void **cb = (void **)msg->cb;
12944 struct cfg80211_registered_device *rdev = cb[2];
12945
12946 nla_nest_end(msg, cb[1]);
12947 genlmsg_end(msg, cb[0]);
12948
12949 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 12950
68eb5503 12951 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12952 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 12953}
12954
12955void cfg80211_cqm_rssi_notify(struct net_device *dev,
12956 enum nl80211_cqm_rssi_threshold_event rssi_event,
12957 gfp_t gfp)
12958{
12959 struct sk_buff *msg;
12960
12961 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12962
98f03342
JB		 12963 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12964 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12965 return;
12966
5b97f49d
JB		 12967 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12968 if (!msg)
12969 return;
12970
12971 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12972 rssi_event))
12973 goto nla_put_failure;
12974
12975 cfg80211_send_cqm(msg, gfp);
12976
d6dc1a38
JO		 12977 return;
12978
12979 nla_put_failure:
d6dc1a38
JO		 12980 nlmsg_free(msg);
12981}
947add36 12982EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12983
5b97f49d
JB		 12984void cfg80211_cqm_txe_notify(struct net_device *dev,
12985 const u8 *peer, u32 num_packets,
12986 u32 rate, u32 intvl, gfp_t gfp)
12987{
12988 struct sk_buff *msg;
12989
12990 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12991 if (!msg)
12992 return;
12993
12994 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12995 goto nla_put_failure;
12996
12997 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12998 goto nla_put_failure;
12999
13000 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
13001 goto nla_put_failure;
13002
13003 cfg80211_send_cqm(msg, gfp);
13004 return;
13005
13006 nla_put_failure:
13007 nlmsg_free(msg);
13008}
13009EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
13010
13011void cfg80211_cqm_pktloss_notify(struct net_device *dev,
13012 const u8 *peer, u32 num_packets, gfp_t gfp)
13013{
13014 struct sk_buff *msg;
13015
13016 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
13017
13018 msg = cfg80211_prepare_cqm(dev, peer, gfp);
13019 if (!msg)
13020 return;
13021
13022 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
13023 goto nla_put_failure;
13024
13025 cfg80211_send_cqm(msg, gfp);
13026 return;
13027
13028 nla_put_failure:
13029 nlmsg_free(msg);
13030}
13031EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
13032
98f03342
JB		 13033void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
13034{
13035 struct sk_buff *msg;
13036
13037 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13038 if (!msg)
13039 return;
13040
13041 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
13042 goto nla_put_failure;
13043
13044 cfg80211_send_cqm(msg, gfp);
13045 return;
13046
13047 nla_put_failure:
13048 nlmsg_free(msg);
13049}
13050EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
13051
947add36
JB		 13052static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
13053 struct net_device *netdev, const u8 *bssid,
13054 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 13055{
13056 struct sk_buff *msg;
13057 struct nlattr *rekey_attr;
13058 void *hdr;
13059
58050fce 13060 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 13061 if (!msg)
13062 return;
13063
13064 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
13065 if (!hdr) {
13066 nlmsg_free(msg);
13067 return;
13068 }
13069
9360ffd1
DM		 13070 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13071 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13072 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13073 goto nla_put_failure;
e5497d76
JB		 13074
13075 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
13076 if (!rekey_attr)
13077 goto nla_put_failure;
13078
9360ffd1
DM		 13079 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
13080 NL80211_REPLAY_CTR_LEN, replay_ctr))
13081 goto nla_put_failure;
e5497d76
JB		 13082
13083 nla_nest_end(msg, rekey_attr);
13084
3b7b72ee 13085 genlmsg_end(msg, hdr);
e5497d76 13086
68eb5503 13087 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13088 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 13089 return;
13090
13091 nla_put_failure:
13092 genlmsg_cancel(msg, hdr);
13093 nlmsg_free(msg);
13094}
13095
947add36
JB		 13096void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
13097 const u8 *replay_ctr, gfp_t gfp)
13098{
13099 struct wireless_dev *wdev = dev->ieee80211_ptr;
13100 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13101 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13102
13103 trace_cfg80211_gtk_rekey_notify(dev, bssid);
13104 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
13105}
13106EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
13107
13108static void
13109nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
13110 struct net_device *netdev, int index,
13111 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 13112{
13113 struct sk_buff *msg;
13114 struct nlattr *attr;
13115 void *hdr;
13116
58050fce 13117 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 13118 if (!msg)
13119 return;
13120
13121 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
13122 if (!hdr) {
13123 nlmsg_free(msg);
13124 return;
13125 }
13126
9360ffd1
DM		 13127 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13128 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13129 goto nla_put_failure;
c9df56b4
JM		 13130
13131 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
13132 if (!attr)
13133 goto nla_put_failure;
13134
9360ffd1
DM		 13135 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
13136 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
13137 (preauth &&
13138 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
13139 goto nla_put_failure;
c9df56b4
JM		 13140
13141 nla_nest_end(msg, attr);
13142
3b7b72ee 13143 genlmsg_end(msg, hdr);
c9df56b4 13144
68eb5503 13145 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13146 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 13147 return;
13148
13149 nla_put_failure:
13150 genlmsg_cancel(msg, hdr);
13151 nlmsg_free(msg);
13152}
13153
947add36
JB		 13154void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
13155 const u8 *bssid, bool preauth, gfp_t gfp)
13156{
13157 struct wireless_dev *wdev = dev->ieee80211_ptr;
13158 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13159 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13160
13161 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
13162 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
13163}
13164EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
13165
13166static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
13167 struct net_device *netdev,
13168 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 13169 gfp_t gfp,
13170 enum nl80211_commands notif,
13171 u8 count)
5314526b
TP		 13172{
13173 struct sk_buff *msg;
13174 void *hdr;
13175
58050fce 13176 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 13177 if (!msg)
13178 return;
13179
f8d7552e 13180 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 13181 if (!hdr) {
13182 nlmsg_free(msg);
13183 return;
13184 }
13185
683b6d3b
JB		 13186 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13187 goto nla_put_failure;
13188
13189 if (nl80211_send_chandef(msg, chandef))
7eab0f64 13190 goto nla_put_failure;
5314526b 13191
f8d7552e
LC		 13192 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
13193 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
13194 goto nla_put_failure;
13195
5314526b
TP		 13196 genlmsg_end(msg, hdr);
13197
68eb5503 13198 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13199 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 13200 return;
13201
13202 nla_put_failure:
13203 genlmsg_cancel(msg, hdr);
13204 nlmsg_free(msg);
13205}
13206
947add36
JB		 13207void cfg80211_ch_switch_notify(struct net_device *dev,
13208 struct cfg80211_chan_def *chandef)
84f10708 13209{
947add36
JB		 13210 struct wireless_dev *wdev = dev->ieee80211_ptr;
13211 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13212 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 13213
e487eaeb 13214 ASSERT_WDEV_LOCK(wdev);
947add36 13215
e487eaeb 13216 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 13217
9e0e2961 13218 wdev->chandef = *chandef;
96f55f12 13219 wdev->preset_chandef = *chandef;
f8d7552e
LC		 13220 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13221 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 13222}
13223EXPORT_SYMBOL(cfg80211_ch_switch_notify);
13224
f8d7552e
LC		 13225void cfg80211_ch_switch_started_notify(struct net_device *dev,
13226 struct cfg80211_chan_def *chandef,
13227 u8 count)
13228{
13229 struct wireless_dev *wdev = dev->ieee80211_ptr;
13230 struct wiphy *wiphy = wdev->wiphy;
13231 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13232
13233 trace_cfg80211_ch_switch_started_notify(dev, chandef);
13234
13235 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13236 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
13237}
13238EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
13239
04f39047
SW		 13240void
13241nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 13242 const struct cfg80211_chan_def *chandef,
04f39047
SW		 13243 enum nl80211_radar_event event,
13244 struct net_device *netdev, gfp_t gfp)
13245{
13246 struct sk_buff *msg;
13247 void *hdr;
13248
13249 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13250 if (!msg)
13251 return;
13252
13253 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
13254 if (!hdr) {
13255 nlmsg_free(msg);
13256 return;
13257 }
13258
13259 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
13260 goto nla_put_failure;
13261
13262 /* NOP and radar events don't need a netdev parameter */
13263 if (netdev) {
13264 struct wireless_dev *wdev = netdev->ieee80211_ptr;
13265
13266 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
2dad624e
ND		 13267 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13268 NL80211_ATTR_PAD))
04f39047
SW		 13269 goto nla_put_failure;
13270 }
13271
13272 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
13273 goto nla_put_failure;
13274
13275 if (nl80211_send_chandef(msg, chandef))
13276 goto nla_put_failure;
13277
9c90a9f6 13278 genlmsg_end(msg, hdr);
04f39047 13279
68eb5503 13280 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13281 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 13282 return;
13283
13284 nla_put_failure:
13285 genlmsg_cancel(msg, hdr);
13286 nlmsg_free(msg);
13287}
13288
7f6cf311
JB		 13289void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
13290 u64 cookie, bool acked, gfp_t gfp)
13291{
13292 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13293 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 13294 struct sk_buff *msg;
13295 void *hdr;
7f6cf311 13296
4ee3e063
BL		 13297 trace_cfg80211_probe_status(dev, addr, cookie, acked);
13298
58050fce 13299 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 13300
7f6cf311
JB		 13301 if (!msg)
13302 return;
13303
13304 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
13305 if (!hdr) {
13306 nlmsg_free(msg);
13307 return;
13308 }
13309
9360ffd1
DM		 13310 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13311 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13312 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2dad624e
ND		 13313 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13314 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13315 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
13316 goto nla_put_failure;
7f6cf311 13317
9c90a9f6 13318 genlmsg_end(msg, hdr);
7f6cf311 13319
68eb5503 13320 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13321 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 13322 return;
13323
13324 nla_put_failure:
13325 genlmsg_cancel(msg, hdr);
13326 nlmsg_free(msg);
13327}
13328EXPORT_SYMBOL(cfg80211_probe_status);
13329
5e760230
JB		 13330void cfg80211_report_obss_beacon(struct wiphy *wiphy,
13331 const u8 *frame, size_t len,
37c73b5f 13332 int freq, int sig_dbm)
5e760230 13333{
f26cbf40 13334 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 13335 struct sk_buff *msg;
13336 void *hdr;
37c73b5f 13337 struct cfg80211_beacon_registration *reg;
5e760230 13338
4ee3e063
BL		 13339 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
13340
37c73b5f
BG		 13341 spin_lock_bh(&rdev->beacon_registrations_lock);
13342 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
13343 msg = nlmsg_new(len + 100, GFP_ATOMIC);
13344 if (!msg) {
13345 spin_unlock_bh(&rdev->beacon_registrations_lock);
13346 return;
13347 }
5e760230 13348
37c73b5f
BG		 13349 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
13350 if (!hdr)
13351 goto nla_put_failure;
5e760230 13352
37c73b5f
BG		 13353 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13354 (freq &&
13355 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
13356 (sig_dbm &&
13357 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
13358 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
13359 goto nla_put_failure;
5e760230 13360
37c73b5f 13361 genlmsg_end(msg, hdr);
5e760230 13362
37c73b5f
BG		 13363 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
13364 }
13365 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 13366 return;
13367
13368 nla_put_failure:
37c73b5f
BG		 13369 spin_unlock_bh(&rdev->beacon_registrations_lock);
13370 if (hdr)
13371 genlmsg_cancel(msg, hdr);
5e760230
JB		 13372 nlmsg_free(msg);
13373}
13374EXPORT_SYMBOL(cfg80211_report_obss_beacon);
13375
cd8f7cb4 13376#ifdef CONFIG_PM
8cd4d456
LC		 13377static int cfg80211_net_detect_results(struct sk_buff *msg,
13378 struct cfg80211_wowlan_wakeup *wakeup)
13379{
13380 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
13381 struct nlattr *nl_results, *nl_match, *nl_freqs;
13382 int i, j;
13383
13384 nl_results = nla_nest_start(
13385 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
13386 if (!nl_results)
13387 return -EMSGSIZE;
13388
13389 for (i = 0; i < nd->n_matches; i++) {
13390 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
13391
13392 nl_match = nla_nest_start(msg, i);
13393 if (!nl_match)
13394 break;
13395
13396 /* The SSID attribute is optional in nl80211, but for
13397 * simplicity reasons it's always present in the
13398 * cfg80211 structure. If a driver can't pass the
13399 * SSID, that needs to be changed. A zero length SSID
13400 * is still a valid SSID (wildcard), so it cannot be
13401 * used for this purpose.
13402 */
13403 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
13404 match->ssid.ssid)) {
13405 nla_nest_cancel(msg, nl_match);
13406 goto out;
13407 }
13408
13409 if (match->n_channels) {
13410 nl_freqs = nla_nest_start(
13411 msg, NL80211_ATTR_SCAN_FREQUENCIES);
13412 if (!nl_freqs) {
13413 nla_nest_cancel(msg, nl_match);
13414 goto out;
13415 }
13416
13417 for (j = 0; j < match->n_channels; j++) {
5528fae8 13418 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 13419 nla_nest_cancel(msg, nl_freqs);
13420 nla_nest_cancel(msg, nl_match);
13421 goto out;
13422 }
13423 }
13424
13425 nla_nest_end(msg, nl_freqs);
13426 }
13427
13428 nla_nest_end(msg, nl_match);
13429 }
13430
13431out:
13432 nla_nest_end(msg, nl_results);
13433 return 0;
13434}
13435
cd8f7cb4
JB		 13436void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
13437 struct cfg80211_wowlan_wakeup *wakeup,
13438 gfp_t gfp)
13439{
f26cbf40 13440 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 13441 struct sk_buff *msg;
13442 void *hdr;
9c90a9f6 13443 int size = 200;
cd8f7cb4
JB		 13444
13445 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13446
13447 if (wakeup)
13448 size += wakeup->packet_present_len;
13449
13450 msg = nlmsg_new(size, gfp);
13451 if (!msg)
13452 return;
13453
13454 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13455 if (!hdr)
13456 goto free_msg;
13457
13458 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 13459 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13460 NL80211_ATTR_PAD))
cd8f7cb4
JB		 13461 goto free_msg;
13462
13463 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13464 wdev->netdev->ifindex))
13465 goto free_msg;
13466
13467 if (wakeup) {
13468 struct nlattr *reasons;
13469
13470 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 13471 if (!reasons)
13472 goto free_msg;
cd8f7cb4
JB		 13473
13474 if (wakeup->disconnect &&
13475 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13476 goto free_msg;
13477 if (wakeup->magic_pkt &&
13478 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13479 goto free_msg;
13480 if (wakeup->gtk_rekey_failure &&
13481 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13482 goto free_msg;
13483 if (wakeup->eap_identity_req &&
13484 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13485 goto free_msg;
13486 if (wakeup->four_way_handshake &&
13487 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13488 goto free_msg;
13489 if (wakeup->rfkill_release &&
13490 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13491 goto free_msg;
13492
13493 if (wakeup->pattern_idx >= 0 &&
13494 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13495 wakeup->pattern_idx))
13496 goto free_msg;
13497
ae917c9f
JB		 13498 if (wakeup->tcp_match &&
13499 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13500 goto free_msg;
2a0e047e 13501
ae917c9f
JB		 13502 if (wakeup->tcp_connlost &&
13503 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13504 goto free_msg;
2a0e047e 13505
ae917c9f
JB		 13506 if (wakeup->tcp_nomoretokens &&
13507 nla_put_flag(msg,
13508 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13509 goto free_msg;
2a0e047e 13510
cd8f7cb4
JB		 13511 if (wakeup->packet) {
13512 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13513 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13514
13515 if (!wakeup->packet_80211) {
13516 pkt_attr =
13517 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13518 len_attr =
13519 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13520 }
13521
13522 if (wakeup->packet_len &&
13523 nla_put_u32(msg, len_attr, wakeup->packet_len))
13524 goto free_msg;
13525
13526 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13527 wakeup->packet))
13528 goto free_msg;
13529 }
13530
8cd4d456
LC		 13531 if (wakeup->net_detect &&
13532 cfg80211_net_detect_results(msg, wakeup))
13533 goto free_msg;
13534
cd8f7cb4
JB		 13535 nla_nest_end(msg, reasons);
13536 }
13537
9c90a9f6 13538 genlmsg_end(msg, hdr);
cd8f7cb4 13539
68eb5503 13540 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13541 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 13542 return;
13543
13544 free_msg:
13545 nlmsg_free(msg);
13546}
13547EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13548#endif
13549
3475b094
JM		 13550void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13551 enum nl80211_tdls_operation oper,
13552 u16 reason_code, gfp_t gfp)
13553{
13554 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13555 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 13556 struct sk_buff *msg;
13557 void *hdr;
3475b094
JM		 13558
13559 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13560 reason_code);
13561
13562 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13563 if (!msg)
13564 return;
13565
13566 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13567 if (!hdr) {
13568 nlmsg_free(msg);
13569 return;
13570 }
13571
13572 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13573 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13574 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13575 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13576 (reason_code > 0 &&
13577 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13578 goto nla_put_failure;
13579
9c90a9f6 13580 genlmsg_end(msg, hdr);
3475b094 13581
68eb5503 13582 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13583 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 13584 return;
13585
13586 nla_put_failure:
13587 genlmsg_cancel(msg, hdr);
13588 nlmsg_free(msg);
13589}
13590EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13591
026331c4
JM		 13592static int nl80211_netlink_notify(struct notifier_block * nb,
13593 unsigned long state,
13594 void *_notify)
13595{
13596 struct netlink_notify *notify = _notify;
13597 struct cfg80211_registered_device *rdev;
13598 struct wireless_dev *wdev;
37c73b5f 13599 struct cfg80211_beacon_registration *reg, *tmp;
026331c4 13600
8f815cdd 13601 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
026331c4
JM		 13602 return NOTIFY_DONE;
13603
13604 rcu_read_lock();
13605
5e760230 13606 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 13607 bool schedule_destroy_work = false;
93a1e86c
JR		 13608 bool schedule_scan_stop = false;
13609 struct cfg80211_sched_scan_request *sched_scan_req =
13610 rcu_dereference(rdev->sched_scan_req);
13611
13612 if (sched_scan_req && notify->portid &&
13613 sched_scan_req->owner_nlportid == notify->portid)
13614 schedule_scan_stop = true;
78f22b6a 13615
53873f13 13616 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15e47304 13617 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 13618
78f22b6a
JB		 13619 if (wdev->owner_nlportid == notify->portid)
13620 schedule_destroy_work = true;
13621 }
13622
37c73b5f
BG		 13623 spin_lock_bh(&rdev->beacon_registrations_lock);
13624 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13625 list) {
13626 if (reg->nlportid == notify->portid) {
13627 list_del(&reg->list);
13628 kfree(reg);
13629 break;
13630 }
13631 }
13632 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 13633
13634 if (schedule_destroy_work) {
13635 struct cfg80211_iface_destroy *destroy;
13636
13637 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13638 if (destroy) {
13639 destroy->nlportid = notify->portid;
13640 spin_lock(&rdev->destroy_list_lock);
13641 list_add(&destroy->list, &rdev->destroy_list);
13642 spin_unlock(&rdev->destroy_list_lock);
13643 schedule_work(&rdev->destroy_work);
13644 }
93a1e86c
JR		 13645 } else if (schedule_scan_stop) {
13646 sched_scan_req->owner_nlportid = 0;
13647
13648 if (rdev->ops->sched_scan_stop &&
13649 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13650 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 13651 }
5e760230 13652 }
026331c4
JM		 13653
13654 rcu_read_unlock();
13655
05050753
I		 13656 /*
13657 * It is possible that the user space process that is controlling the
13658 * indoor setting disappeared, so notify the regulatory core.
13659 */
13660 regulatory_netlink_notify(notify->portid);
6784c7db 13661 return NOTIFY_OK;
026331c4
JM		 13662}
13663
13664static struct notifier_block nl80211_netlink_notifier = {
13665 .notifier_call = nl80211_netlink_notify,
13666};
13667
355199e0
JM		 13668void cfg80211_ft_event(struct net_device *netdev,
13669 struct cfg80211_ft_event_params *ft_event)
13670{
13671 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 13672 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 13673 struct sk_buff *msg;
13674 void *hdr;
355199e0
JM		 13675
13676 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13677
13678 if (!ft_event->target_ap)
13679 return;
13680
13681 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13682 if (!msg)
13683 return;
13684
13685 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 13686 if (!hdr)
13687 goto out;
355199e0 13688
ae917c9f
JB		 13689 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13690 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13691 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13692 goto out;
355199e0 13693
ae917c9f
JB		 13694 if (ft_event->ies &&
13695 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13696 goto out;
13697 if (ft_event->ric_ies &&
13698 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13699 ft_event->ric_ies))
13700 goto out;
355199e0 13701
9c90a9f6 13702 genlmsg_end(msg, hdr);
355199e0 13703
68eb5503 13704 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13705 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 13706 return;
13707 out:
13708 nlmsg_free(msg);
355199e0
JM		 13709}
13710EXPORT_SYMBOL(cfg80211_ft_event);
13711
5de17984
AS		 13712void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13713{
13714 struct cfg80211_registered_device *rdev;
13715 struct sk_buff *msg;
13716 void *hdr;
13717 u32 nlportid;
13718
f26cbf40 13719 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 13720 if (!rdev->crit_proto_nlportid)
13721 return;
13722
13723 nlportid = rdev->crit_proto_nlportid;
13724 rdev->crit_proto_nlportid = 0;
13725
13726 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13727 if (!msg)
13728 return;
13729
13730 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13731 if (!hdr)
13732 goto nla_put_failure;
13733
13734 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 13735 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13736 NL80211_ATTR_PAD))
5de17984
AS		 13737 goto nla_put_failure;
13738
13739 genlmsg_end(msg, hdr);
13740
13741 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13742 return;
13743
13744 nla_put_failure:
13745 if (hdr)
13746 genlmsg_cancel(msg, hdr);
13747 nlmsg_free(msg);
5de17984
AS		 13748}
13749EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13750
348baf0e
JB		 13751void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13752{
13753 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13754 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 13755 struct sk_buff *msg;
13756 void *hdr;
13757
13758 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13759 if (!msg)
13760 return;
13761
13762 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13763 if (!hdr)
13764 goto out;
13765
13766 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13767 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
2dad624e
ND		 13768 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13769 NL80211_ATTR_PAD))
348baf0e
JB		 13770 goto out;
13771
13772 genlmsg_end(msg, hdr);
13773
13774 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13775 NL80211_MCGRP_MLME, GFP_KERNEL);
13776 return;
13777 out:
13778 nlmsg_free(msg);
13779}
13780
55682965
JB		 13781/* initialisation/exit functions */
13782
13783int nl80211_init(void)
13784{
0d63cbb5 13785 int err;
55682965 13786
2a94fe48
JB		 13787 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13788 nl80211_mcgrps);
55682965
JB		 13789 if (err)
13790 return err;
13791
026331c4
JM		 13792 err = netlink_register_notifier(&nl80211_netlink_notifier);
13793 if (err)
13794 goto err_out;
13795
55682965
JB		 13796 return 0;
13797 err_out:
13798 genl_unregister_family(&nl80211_fam);
13799 return err;
13800}
13801
13802void nl80211_exit(void)
13803{
026331c4 13804 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 13805 genl_unregister_family(&nl80211_fam);
13806}
Ubuntu Focal Linux kernel mirror