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cfg80211: clear wext keys when freeing and removing them
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
55682965
JB		 6 */
7
8#include <linux/if.h>
9#include <linux/module.h>
10#include <linux/err.h>
5a0e3ad6 11#include <linux/slab.h>
55682965
JB		 12#include <linux/list.h>
13#include <linux/if_ether.h>
14#include <linux/ieee80211.h>
15#include <linux/nl80211.h>
16#include <linux/rtnetlink.h>
17#include <linux/netlink.h>
2a519311 18#include <linux/etherdevice.h>
463d0183 19#include <net/net_namespace.h>
55682965
JB		 20#include <net/genetlink.h>
21#include <net/cfg80211.h>
463d0183 22#include <net/sock.h>
2a0e047e 23#include <net/inet_connection_sock.h>
55682965
JB		 24#include "core.h"
25#include "nl80211.h"
b2e1b302 26#include "reg.h"
e35e4d28 27#include "rdev-ops.h"
55682965 28
5fb628e9
JM		 29static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
30 struct genl_info *info,
31 struct cfg80211_crypto_settings *settings,
32 int cipher_limit);
33
f84f771d 34static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 35 struct genl_info *info);
f84f771d 36static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 37 struct genl_info *info);
38
55682965
JB		 39/* the netlink family */
40static struct genl_family nl80211_fam = {
fb4e1568
MH		 41 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
42 .name = NL80211_GENL_NAME, /* have users key off the name instead */
43 .hdrsize = 0, /* no private header */
44 .version = 1, /* no particular meaning now */
55682965 45 .maxattr = NL80211_ATTR_MAX,
463d0183 46 .netnsok = true,
4c476991
JB		 47 .pre_doit = nl80211_pre_doit,
48 .post_doit = nl80211_post_doit,
55682965
JB		 49};
50
2a94fe48
JB		 51/* multicast groups */
52enum nl80211_multicast_groups {
53 NL80211_MCGRP_CONFIG,
54 NL80211_MCGRP_SCAN,
55 NL80211_MCGRP_REGULATORY,
56 NL80211_MCGRP_MLME,
567ffc35 57 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 58 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
59};
60
61static const struct genl_multicast_group nl80211_mcgrps[] = {
62 [NL80211_MCGRP_CONFIG] = { .name = "config", },
63 [NL80211_MCGRP_SCAN] = { .name = "scan", },
64 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
65 [NL80211_MCGRP_MLME] = { .name = "mlme", },
567ffc35 66 [NL80211_MCGRP_VENDOR] = { .name = "vendor", },
2a94fe48
JB		 67#ifdef CONFIG_NL80211_TESTMODE
68 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
69#endif
70};
71
89a54e48
JB		 72/* returns ERR_PTR values */
73static struct wireless_dev *
74__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 75{
89a54e48
JB		 76 struct cfg80211_registered_device *rdev;
77 struct wireless_dev *result = NULL;
78 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
79 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
80 u64 wdev_id;
81 int wiphy_idx = -1;
82 int ifidx = -1;
55682965 83
5fe231e8 84 ASSERT_RTNL();
55682965 85
89a54e48
JB		 86 if (!have_ifidx && !have_wdev_id)
87 return ERR_PTR(-EINVAL);
55682965 88
89a54e48
JB		 89 if (have_ifidx)
90 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
91 if (have_wdev_id) {
92 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
93 wiphy_idx = wdev_id >> 32;
55682965
JB		 94 }
95
89a54e48
JB		 96 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
97 struct wireless_dev *wdev;
98
99 if (wiphy_net(&rdev->wiphy) != netns)
100 continue;
101
102 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
103 continue;
104
89a54e48
JB		 105 list_for_each_entry(wdev, &rdev->wdev_list, list) {
106 if (have_ifidx && wdev->netdev &&
107 wdev->netdev->ifindex == ifidx) {
108 result = wdev;
109 break;
110 }
111 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
112 result = wdev;
113 break;
114 }
115 }
89a54e48
JB		 116
117 if (result)
118 break;
119 }
120
121 if (result)
122 return result;
123 return ERR_PTR(-ENODEV);
55682965
JB		 124}
125
a9455408 126static struct cfg80211_registered_device *
878d9ec7 127__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 128{
7fee4778
JB		 129 struct cfg80211_registered_device *rdev = NULL, *tmp;
130 struct net_device *netdev;
a9455408 131
5fe231e8 132 ASSERT_RTNL();
a9455408 133
878d9ec7 134 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 135 !attrs[NL80211_ATTR_IFINDEX] &&
136 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 137 return ERR_PTR(-EINVAL);
138
878d9ec7 139 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 140 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 141 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 142
89a54e48
JB		 143 if (attrs[NL80211_ATTR_WDEV]) {
144 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
145 struct wireless_dev *wdev;
146 bool found = false;
147
148 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
149 if (tmp) {
150 /* make sure wdev exists */
89a54e48
JB		 151 list_for_each_entry(wdev, &tmp->wdev_list, list) {
152 if (wdev->identifier != (u32)wdev_id)
153 continue;
154 found = true;
155 break;
156 }
89a54e48
JB		 157
158 if (!found)
159 tmp = NULL;
160
161 if (rdev && tmp != rdev)
162 return ERR_PTR(-EINVAL);
163 rdev = tmp;
164 }
165 }
166
878d9ec7
JB		 167 if (attrs[NL80211_ATTR_IFINDEX]) {
168 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7f2b8562 169 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 170 if (netdev) {
171 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 172 tmp = wiphy_to_rdev(
173 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 174 else
175 tmp = NULL;
176
7fee4778
JB		 177 /* not wireless device -- return error */
178 if (!tmp)
179 return ERR_PTR(-EINVAL);
180
181 /* mismatch -- return error */
182 if (rdev && tmp != rdev)
183 return ERR_PTR(-EINVAL);
184
185 rdev = tmp;
a9455408 186 }
a9455408 187 }
a9455408 188
4f7eff10
JB		 189 if (!rdev)
190 return ERR_PTR(-ENODEV);
a9455408 191
4f7eff10
JB		 192 if (netns != wiphy_net(&rdev->wiphy))
193 return ERR_PTR(-ENODEV);
194
195 return rdev;
a9455408
JB		 196}
197
198/*
199 * This function returns a pointer to the driver
200 * that the genl_info item that is passed refers to.
a9455408
JB		 201 *
202 * The result of this can be a PTR_ERR and hence must
203 * be checked with IS_ERR() for errors.
204 */
205static struct cfg80211_registered_device *
4f7eff10 206cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 207{
5fe231e8 208 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 209}
210
55682965 211/* policy for the attributes */
b54452b0 212static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 213 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
214 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 215 .len = 20-1 },
31888487 216 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 217
72bdcf34 218 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 219 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 220 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
222 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
223
b9a5f8ca
JM		 224 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
226 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
227 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 228 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 229 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 230
231 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
232 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
233 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 234
e007b857
EP		 235 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
236 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 237
b9454e83 238 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 239 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
240 .len = WLAN_MAX_KEY_LEN },
241 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
242 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
243 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 244 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 245 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 246
247 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
248 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
249 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
251 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 253 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
255 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
256 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
257 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 258 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 259 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 260 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 261 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 262 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 263 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 264
b2e1b302
LR		 265 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
266 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
267
9f1ba906
JM		 268 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
269 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
270 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 271 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
272 .len = NL80211_MAX_SUPP_RATES },
50b12f59 273 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 274
24bdd9f4 275 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 276 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 277
6c739419 278 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 279
280 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
281 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
282 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 283 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
284 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 285
286 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
287 .len = IEEE80211_MAX_SSID_LEN },
288 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
289 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 290 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 291 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 292 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 293 [NL80211_ATTR_STA_FLAGS2] = {
294 .len = sizeof(struct nl80211_sta_flag_update),
295 },
3f77316c 296 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 297 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
298 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 299 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
300 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
301 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 302 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 303 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 304 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
305 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 306 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
307 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 308 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 309 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
310 .len = IEEE80211_MAX_DATA_LEN },
311 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 312 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 313 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 314 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 315 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 316 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
317 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 318 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 319 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
320 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 321 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 322 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 323 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 324 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 325 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 326 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 327 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 328 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 329 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 330 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
332 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
333 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 334 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 335 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 336 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 337 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
341 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 342 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 343 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 344 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
345 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 346 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 347 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
348 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
349 .len = NL80211_HT_CAPABILITY_LEN
350 },
1d9d9213 351 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 352 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 353 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 354 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 355 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 356 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 357 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 358 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 359 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
360 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 361 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
362 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 363 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
364 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 365 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 366 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
367 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
368 .len = NL80211_VHT_CAPABILITY_LEN,
369 },
355199e0
JM		 370 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
371 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
372 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 373 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 374 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
375 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
376 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 377 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
378 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 379 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
380 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 381 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 382 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 383 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
384 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 386 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
387 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 388 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
389 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 390 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
78f22b6a 391 [NL80211_ATTR_IFACE_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 392 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 393 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
55682965
JB		 394};
395
e31b8213 396/* policy for the key attributes */
b54452b0 397static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 398 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 399 [NL80211_KEY_IDX] = { .type = NLA_U8 },
400 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 401 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 402 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
403 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 404 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 405 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
406};
407
408/* policy for the key default flags */
409static const struct nla_policy
410nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
411 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
412 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 413};
414
ff1b6e69
JB		 415/* policy for WoWLAN attributes */
416static const struct nla_policy
417nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
418 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
419 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
420 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
421 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 422 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
423 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
424 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
425 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 426 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
427};
428
429static const struct nla_policy
430nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
431 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
432 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
433 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
434 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
435 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
436 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
437 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
438 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
439 },
440 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
441 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
442 },
443 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
444 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
445 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 446};
447
be29b99a
AK		 448/* policy for coalesce rule attributes */
449static const struct nla_policy
450nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
451 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
452 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
453 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
454};
455
e5497d76
JB		 456/* policy for GTK rekey offload attributes */
457static const struct nla_policy
458nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
459 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
460 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
461 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
462};
463
a1f1c21c
LC		 464static const struct nla_policy
465nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 466 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 467 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 468 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 469};
470
97990a06
JB		 471static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
472 struct netlink_callback *cb,
473 struct cfg80211_registered_device **rdev,
474 struct wireless_dev **wdev)
a043897a 475{
97990a06 476 int err;
a043897a 477
97990a06 478 rtnl_lock();
a043897a 479
97990a06
JB		 480 if (!cb->args[0]) {
481 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
482 nl80211_fam.attrbuf, nl80211_fam.maxattr,
483 nl80211_policy);
484 if (err)
485 goto out_unlock;
67748893 486
97990a06
JB		 487 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
488 nl80211_fam.attrbuf);
489 if (IS_ERR(*wdev)) {
490 err = PTR_ERR(*wdev);
491 goto out_unlock;
492 }
f26cbf40 493 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 494 /* 0 is the first index - add 1 to parse only once */
495 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 496 cb->args[1] = (*wdev)->identifier;
497 } else {
c319d50b
JB		 498 /* subtract the 1 again here */
499 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 500 struct wireless_dev *tmp;
67748893 501
97990a06
JB		 502 if (!wiphy) {
503 err = -ENODEV;
504 goto out_unlock;
505 }
f26cbf40 506 *rdev = wiphy_to_rdev(wiphy);
97990a06 507 *wdev = NULL;
67748893 508
97990a06
JB		 509 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
510 if (tmp->identifier == cb->args[1]) {
511 *wdev = tmp;
512 break;
513 }
514 }
67748893 515
97990a06
JB		 516 if (!*wdev) {
517 err = -ENODEV;
518 goto out_unlock;
519 }
67748893
JB		 520 }
521
67748893 522 return 0;
97990a06 523 out_unlock:
67748893
JB		 524 rtnl_unlock();
525 return err;
526}
527
97990a06 528static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 529{
67748893
JB		 530 rtnl_unlock();
531}
532
f4a11bb0
JB		 533/* IE validation */
534static bool is_valid_ie_attr(const struct nlattr *attr)
535{
536 const u8 *pos;
537 int len;
538
539 if (!attr)
540 return true;
541
542 pos = nla_data(attr);
543 len = nla_len(attr);
544
545 while (len) {
546 u8 elemlen;
547
548 if (len < 2)
549 return false;
550 len -= 2;
551
552 elemlen = pos[1];
553 if (elemlen > len)
554 return false;
555
556 len -= elemlen;
557 pos += 2 + elemlen;
558 }
559
560 return true;
561}
562
55682965 563/* message building helper */
15e47304 564static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 565 int flags, u8 cmd)
566{
567 /* since there is no private header just add the generic one */
15e47304 568 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 569}
570
5dab3b8a 571static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 572 struct ieee80211_channel *chan,
573 bool large)
5dab3b8a 574{
ea077c1c
RL		 575 /* Some channels must be completely excluded from the
576 * list to protect old user-space tools from breaking
577 */
578 if (!large && chan->flags &
579 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
580 return 0;
581
9360ffd1
DM		 582 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
583 chan->center_freq))
584 goto nla_put_failure;
5dab3b8a 585
9360ffd1
DM		 586 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
587 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
588 goto nla_put_failure;
8fe02e16
LR		 589 if (chan->flags & IEEE80211_CHAN_NO_IR) {
590 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
591 goto nla_put_failure;
592 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
593 goto nla_put_failure;
594 }
cdc89b97
JB		 595 if (chan->flags & IEEE80211_CHAN_RADAR) {
596 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
597 goto nla_put_failure;
598 if (large) {
599 u32 time;
600
601 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
602
603 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
604 chan->dfs_state))
605 goto nla_put_failure;
606 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
607 time))
608 goto nla_put_failure;
089027e5
JD		 609 if (nla_put_u32(msg,
610 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
611 chan->dfs_cac_ms))
612 goto nla_put_failure;
cdc89b97
JB		 613 }
614 }
5dab3b8a 615
fe1abafd
JB		 616 if (large) {
617 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
618 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
619 goto nla_put_failure;
620 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
621 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
622 goto nla_put_failure;
623 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
624 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
625 goto nla_put_failure;
626 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
627 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
628 goto nla_put_failure;
570dbde1
DS		 629 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
630 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
631 goto nla_put_failure;
632 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
633 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
634 goto nla_put_failure;
ea077c1c
RL		 635 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
636 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
637 goto nla_put_failure;
638 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
639 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
640 goto nla_put_failure;
fe1abafd
JB		 641 }
642
9360ffd1
DM		 643 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
644 DBM_TO_MBM(chan->max_power)))
645 goto nla_put_failure;
5dab3b8a
LR		 646
647 return 0;
648
649 nla_put_failure:
650 return -ENOBUFS;
651}
652
55682965
JB		 653/* netlink command implementations */
654
b9454e83
JB		 655struct key_parse {
656 struct key_params p;
657 int idx;
e31b8213 658 int type;
b9454e83 659 bool def, defmgmt;
dbd2fd65 660 bool def_uni, def_multi;
b9454e83
JB		 661};
662
663static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
664{
665 struct nlattr *tb[NL80211_KEY_MAX + 1];
666 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
667 nl80211_key_policy);
668 if (err)
669 return err;
670
671 k->def = !!tb[NL80211_KEY_DEFAULT];
672 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
673
dbd2fd65
JB		 674 if (k->def) {
675 k->def_uni = true;
676 k->def_multi = true;
677 }
678 if (k->defmgmt)
679 k->def_multi = true;
680
b9454e83
JB		 681 if (tb[NL80211_KEY_IDX])
682 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
683
684 if (tb[NL80211_KEY_DATA]) {
685 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
686 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
687 }
688
689 if (tb[NL80211_KEY_SEQ]) {
690 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
691 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
692 }
693
694 if (tb[NL80211_KEY_CIPHER])
695 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
696
e31b8213
JB		 697 if (tb[NL80211_KEY_TYPE]) {
698 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
699 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
700 return -EINVAL;
701 }
702
dbd2fd65
JB		 703 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
704 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 705 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
706 tb[NL80211_KEY_DEFAULT_TYPES],
707 nl80211_key_default_policy);
dbd2fd65
JB		 708 if (err)
709 return err;
710
711 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
712 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
713 }
714
b9454e83
JB		 715 return 0;
716}
717
718static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
719{
720 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
721 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
722 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
723 }
724
725 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
726 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
727 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
728 }
729
730 if (info->attrs[NL80211_ATTR_KEY_IDX])
731 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
732
733 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
734 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
735
736 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
737 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
738
dbd2fd65
JB		 739 if (k->def) {
740 k->def_uni = true;
741 k->def_multi = true;
742 }
743 if (k->defmgmt)
744 k->def_multi = true;
745
e31b8213
JB		 746 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
747 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
748 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
749 return -EINVAL;
750 }
751
dbd2fd65
JB		 752 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
753 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
754 int err = nla_parse_nested(
755 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
756 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
757 nl80211_key_default_policy);
758 if (err)
759 return err;
760
761 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
762 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
763 }
764
b9454e83
JB		 765 return 0;
766}
767
768static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
769{
770 int err;
771
772 memset(k, 0, sizeof(*k));
773 k->idx = -1;
e31b8213 774 k->type = -1;
b9454e83
JB		 775
776 if (info->attrs[NL80211_ATTR_KEY])
777 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
778 else
779 err = nl80211_parse_key_old(info, k);
780
781 if (err)
782 return err;
783
784 if (k->def && k->defmgmt)
785 return -EINVAL;
786
dbd2fd65
JB		 787 if (k->defmgmt) {
788 if (k->def_uni || !k->def_multi)
789 return -EINVAL;
790 }
791
b9454e83
JB		 792 if (k->idx != -1) {
793 if (k->defmgmt) {
794 if (k->idx < 4 || k->idx > 5)
795 return -EINVAL;
796 } else if (k->def) {
797 if (k->idx < 0 || k->idx > 3)
798 return -EINVAL;
799 } else {
800 if (k->idx < 0 || k->idx > 5)
801 return -EINVAL;
802 }
803 }
804
805 return 0;
806}
807
fffd0934
JB		 808static struct cfg80211_cached_keys *
809nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 810 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 811{
812 struct key_parse parse;
813 struct nlattr *key;
814 struct cfg80211_cached_keys *result;
815 int rem, err, def = 0;
816
817 result = kzalloc(sizeof(*result), GFP_KERNEL);
818 if (!result)
819 return ERR_PTR(-ENOMEM);
820
821 result->def = -1;
822 result->defmgmt = -1;
823
824 nla_for_each_nested(key, keys, rem) {
825 memset(&parse, 0, sizeof(parse));
826 parse.idx = -1;
827
828 err = nl80211_parse_key_new(key, &parse);
829 if (err)
830 goto error;
831 err = -EINVAL;
832 if (!parse.p.key)
833 goto error;
834 if (parse.idx < 0 || parse.idx > 4)
835 goto error;
836 if (parse.def) {
837 if (def)
838 goto error;
839 def = 1;
840 result->def = parse.idx;
dbd2fd65
JB		 841 if (!parse.def_uni || !parse.def_multi)
842 goto error;
fffd0934
JB		 843 } else if (parse.defmgmt)
844 goto error;
845 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 846 parse.idx, false, NULL);
fffd0934
JB		 847 if (err)
848 goto error;
849 result->params[parse.idx].cipher = parse.p.cipher;
850 result->params[parse.idx].key_len = parse.p.key_len;
851 result->params[parse.idx].key = result->data[parse.idx];
852 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 853
854 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
855 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
856 if (no_ht)
857 *no_ht = true;
858 }
fffd0934
JB		 859 }
860
861 return result;
862 error:
863 kfree(result);
864 return ERR_PTR(err);
865}
866
867static int nl80211_key_allowed(struct wireless_dev *wdev)
868{
869 ASSERT_WDEV_LOCK(wdev);
870
fffd0934
JB		 871 switch (wdev->iftype) {
872 case NL80211_IFTYPE_AP:
873 case NL80211_IFTYPE_AP_VLAN:
074ac8df 874 case NL80211_IFTYPE_P2P_GO:
ff973af7 875 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 876 break;
877 case NL80211_IFTYPE_ADHOC:
fffd0934 878 case NL80211_IFTYPE_STATION:
074ac8df 879 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 880 if (!wdev->current_bss)
fffd0934
JB		 881 return -ENOLINK;
882 break;
883 default:
884 return -EINVAL;
885 }
886
887 return 0;
888}
889
664834de
JM		 890static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
891 struct nlattr *tb)
892{
893 struct ieee80211_channel *chan;
894
895 if (tb == NULL)
896 return NULL;
897 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
898 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
899 return NULL;
900 return chan;
901}
902
7527a782
JB		 903static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
904{
905 struct nlattr *nl_modes = nla_nest_start(msg, attr);
906 int i;
907
908 if (!nl_modes)
909 goto nla_put_failure;
910
911 i = 0;
912 while (ifmodes) {
9360ffd1
DM		 913 if ((ifmodes & 1) && nla_put_flag(msg, i))
914 goto nla_put_failure;
7527a782
JB		 915 ifmodes >>= 1;
916 i++;
917 }
918
919 nla_nest_end(msg, nl_modes);
920 return 0;
921
922nla_put_failure:
923 return -ENOBUFS;
924}
925
926static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 927 struct sk_buff *msg,
928 bool large)
7527a782
JB		 929{
930 struct nlattr *nl_combis;
931 int i, j;
932
933 nl_combis = nla_nest_start(msg,
934 NL80211_ATTR_INTERFACE_COMBINATIONS);
935 if (!nl_combis)
936 goto nla_put_failure;
937
938 for (i = 0; i < wiphy->n_iface_combinations; i++) {
939 const struct ieee80211_iface_combination *c;
940 struct nlattr *nl_combi, *nl_limits;
941
942 c = &wiphy->iface_combinations[i];
943
944 nl_combi = nla_nest_start(msg, i + 1);
945 if (!nl_combi)
946 goto nla_put_failure;
947
948 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
949 if (!nl_limits)
950 goto nla_put_failure;
951
952 for (j = 0; j < c->n_limits; j++) {
953 struct nlattr *nl_limit;
954
955 nl_limit = nla_nest_start(msg, j + 1);
956 if (!nl_limit)
957 goto nla_put_failure;
9360ffd1
DM		 958 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
959 c->limits[j].max))
960 goto nla_put_failure;
7527a782
JB		 961 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
962 c->limits[j].types))
963 goto nla_put_failure;
964 nla_nest_end(msg, nl_limit);
965 }
966
967 nla_nest_end(msg, nl_limits);
968
9360ffd1
DM		 969 if (c->beacon_int_infra_match &&
970 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
971 goto nla_put_failure;
972 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
973 c->num_different_channels) ||
974 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
975 c->max_interfaces))
976 goto nla_put_failure;
cdc89b97 977 if (large &&
8c48b50a
FF		 978 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
979 c->radar_detect_widths) ||
980 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
981 c->radar_detect_regions)))
cdc89b97 982 goto nla_put_failure;
7527a782
JB		 983
984 nla_nest_end(msg, nl_combi);
985 }
986
987 nla_nest_end(msg, nl_combis);
988
989 return 0;
990nla_put_failure:
991 return -ENOBUFS;
992}
993
3713b4e3 994#ifdef CONFIG_PM
b56cf720
JB		 995static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
996 struct sk_buff *msg)
997{
964dc9e2 998 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 999 struct nlattr *nl_tcp;
1000
1001 if (!tcp)
1002 return 0;
1003
1004 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1005 if (!nl_tcp)
1006 return -ENOBUFS;
1007
1008 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1009 tcp->data_payload_max))
1010 return -ENOBUFS;
1011
1012 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1013 tcp->data_payload_max))
1014 return -ENOBUFS;
1015
1016 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1017 return -ENOBUFS;
1018
1019 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1020 sizeof(*tcp->tok), tcp->tok))
1021 return -ENOBUFS;
1022
1023 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1024 tcp->data_interval_max))
1025 return -ENOBUFS;
1026
1027 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1028 tcp->wake_payload_max))
1029 return -ENOBUFS;
1030
1031 nla_nest_end(msg, nl_tcp);
1032 return 0;
1033}
1034
3713b4e3 1035static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1036 struct cfg80211_registered_device *rdev,
b56cf720 1037 bool large)
55682965 1038{
3713b4e3 1039 struct nlattr *nl_wowlan;
55682965 1040
1b8ec87a 1041 if (!rdev->wiphy.wowlan)
3713b4e3 1042 return 0;
55682965 1043
3713b4e3
JB		 1044 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1045 if (!nl_wowlan)
1046 return -ENOBUFS;
9360ffd1 1047
1b8ec87a 1048 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1049 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1050 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1051 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1052 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1053 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1054 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1055 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1056 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1057 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1058 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1059 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1060 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1061 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1062 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1063 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1064 return -ENOBUFS;
9360ffd1 1065
1b8ec87a 1066 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1067 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1068 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1069 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1070 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1071 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1072 };
9360ffd1 1073
3713b4e3
JB		 1074 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1075 sizeof(pat), &pat))
1076 return -ENOBUFS;
1077 }
9360ffd1 1078
1b8ec87a 1079 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1080 return -ENOBUFS;
1081
3713b4e3 1082 nla_nest_end(msg, nl_wowlan);
9360ffd1 1083
3713b4e3
JB		 1084 return 0;
1085}
1086#endif
9360ffd1 1087
be29b99a 1088static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1089 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1090{
1091 struct nl80211_coalesce_rule_support rule;
1092
1b8ec87a 1093 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1094 return 0;
1095
1b8ec87a
ZG		 1096 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1097 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1098 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1099 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1100 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1101 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1102
1103 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1104 return -ENOBUFS;
1105
1106 return 0;
1107}
1108
3713b4e3
JB		 1109static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1110 struct ieee80211_supported_band *sband)
1111{
1112 struct nlattr *nl_rates, *nl_rate;
1113 struct ieee80211_rate *rate;
1114 int i;
87bbbe22 1115
3713b4e3
JB		 1116 /* add HT info */
1117 if (sband->ht_cap.ht_supported &&
1118 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1119 sizeof(sband->ht_cap.mcs),
1120 &sband->ht_cap.mcs) ||
1121 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1122 sband->ht_cap.cap) ||
1123 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1124 sband->ht_cap.ampdu_factor) ||
1125 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1126 sband->ht_cap.ampdu_density)))
1127 return -ENOBUFS;
afe0cbf8 1128
3713b4e3
JB		 1129 /* add VHT info */
1130 if (sband->vht_cap.vht_supported &&
1131 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1132 sizeof(sband->vht_cap.vht_mcs),
1133 &sband->vht_cap.vht_mcs) ||
1134 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1135 sband->vht_cap.cap)))
1136 return -ENOBUFS;
f59ac048 1137
3713b4e3
JB		 1138 /* add bitrates */
1139 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1140 if (!nl_rates)
1141 return -ENOBUFS;
ee688b00 1142
3713b4e3
JB		 1143 for (i = 0; i < sband->n_bitrates; i++) {
1144 nl_rate = nla_nest_start(msg, i);
1145 if (!nl_rate)
1146 return -ENOBUFS;
ee688b00 1147
3713b4e3
JB		 1148 rate = &sband->bitrates[i];
1149 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1150 rate->bitrate))
1151 return -ENOBUFS;
1152 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1153 nla_put_flag(msg,
1154 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1155 return -ENOBUFS;
ee688b00 1156
3713b4e3
JB		 1157 nla_nest_end(msg, nl_rate);
1158 }
d51626df 1159
3713b4e3 1160 nla_nest_end(msg, nl_rates);
bf0c111e 1161
3713b4e3
JB		 1162 return 0;
1163}
ee688b00 1164
3713b4e3
JB		 1165static int
1166nl80211_send_mgmt_stypes(struct sk_buff *msg,
1167 const struct ieee80211_txrx_stypes *mgmt_stypes)
1168{
1169 u16 stypes;
1170 struct nlattr *nl_ftypes, *nl_ifs;
1171 enum nl80211_iftype ift;
1172 int i;
ee688b00 1173
3713b4e3
JB		 1174 if (!mgmt_stypes)
1175 return 0;
5dab3b8a 1176
3713b4e3
JB		 1177 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1178 if (!nl_ifs)
1179 return -ENOBUFS;
e2f367f2 1180
3713b4e3
JB		 1181 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1182 nl_ftypes = nla_nest_start(msg, ift);
1183 if (!nl_ftypes)
1184 return -ENOBUFS;
1185 i = 0;
1186 stypes = mgmt_stypes[ift].tx;
1187 while (stypes) {
1188 if ((stypes & 1) &&
1189 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1190 (i << 4) | IEEE80211_FTYPE_MGMT))
1191 return -ENOBUFS;
1192 stypes >>= 1;
1193 i++;
ee688b00 1194 }
3713b4e3
JB		 1195 nla_nest_end(msg, nl_ftypes);
1196 }
ee688b00 1197
3713b4e3 1198 nla_nest_end(msg, nl_ifs);
ee688b00 1199
3713b4e3
JB		 1200 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1201 if (!nl_ifs)
1202 return -ENOBUFS;
ee688b00 1203
3713b4e3
JB		 1204 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1205 nl_ftypes = nla_nest_start(msg, ift);
1206 if (!nl_ftypes)
1207 return -ENOBUFS;
1208 i = 0;
1209 stypes = mgmt_stypes[ift].rx;
1210 while (stypes) {
1211 if ((stypes & 1) &&
1212 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1213 (i << 4) | IEEE80211_FTYPE_MGMT))
1214 return -ENOBUFS;
1215 stypes >>= 1;
1216 i++;
1217 }
1218 nla_nest_end(msg, nl_ftypes);
1219 }
1220 nla_nest_end(msg, nl_ifs);
ee688b00 1221
3713b4e3
JB		 1222 return 0;
1223}
ee688b00 1224
86e8cf98
JB		 1225struct nl80211_dump_wiphy_state {
1226 s64 filter_wiphy;
1227 long start;
1228 long split_start, band_start, chan_start;
1229 bool split;
1230};
1231
1b8ec87a 1232static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1233 enum nl80211_commands cmd,
3713b4e3 1234 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1235 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1236{
1237 void *hdr;
1238 struct nlattr *nl_bands, *nl_band;
1239 struct nlattr *nl_freqs, *nl_freq;
1240 struct nlattr *nl_cmds;
1241 enum ieee80211_band band;
1242 struct ieee80211_channel *chan;
1243 int i;
1244 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1245 rdev->wiphy.mgmt_stypes;
fe1abafd 1246 u32 features;
ee688b00 1247
3bb20556 1248 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1249 if (!hdr)
1250 return -ENOBUFS;
ee688b00 1251
86e8cf98
JB		 1252 if (WARN_ON(!state))
1253 return -EINVAL;
ee688b00 1254
1b8ec87a 1255 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1256 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1257 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1258 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1259 cfg80211_rdev_list_generation))
8fdc621d
JB		 1260 goto nla_put_failure;
1261
3bb20556
JB		 1262 if (cmd != NL80211_CMD_NEW_WIPHY)
1263 goto finish;
1264
86e8cf98 1265 switch (state->split_start) {
3713b4e3
JB		 1266 case 0:
1267 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1268 rdev->wiphy.retry_short) ||
3713b4e3 1269 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1270 rdev->wiphy.retry_long) ||
3713b4e3 1271 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1272 rdev->wiphy.frag_threshold) ||
3713b4e3 1273 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1274 rdev->wiphy.rts_threshold) ||
3713b4e3 1275 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1276 rdev->wiphy.coverage_class) ||
3713b4e3 1277 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1278 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1279 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1280 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1281 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1282 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1283 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1284 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1285 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1286 rdev->wiphy.max_match_sets))
9360ffd1 1287 goto nla_put_failure;
3713b4e3 1288
1b8ec87a 1289 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1290 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1291 goto nla_put_failure;
1b8ec87a 1292 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1293 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1294 goto nla_put_failure;
1b8ec87a 1295 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1296 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1297 goto nla_put_failure;
1b8ec87a 1298 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1299 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1300 goto nla_put_failure;
1b8ec87a 1301 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1302 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1303 goto nla_put_failure;
1b8ec87a 1304 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1305 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1306 goto nla_put_failure;
86e8cf98
JB		 1307 state->split_start++;
1308 if (state->split)
3713b4e3
JB		 1309 break;
1310 case 1:
1311 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1312 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1313 rdev->wiphy.cipher_suites))
3713b4e3 1314 goto nla_put_failure;
4745fc09 1315
3713b4e3 1316 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1317 rdev->wiphy.max_num_pmkids))
3713b4e3 1318 goto nla_put_failure;
b23aa676 1319
1b8ec87a 1320 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1321 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1322 goto nla_put_failure;
b23aa676 1323
3713b4e3 1324 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1325 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1326 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1327 rdev->wiphy.available_antennas_rx))
9360ffd1 1328 goto nla_put_failure;
b23aa676 1329
1b8ec87a 1330 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1331 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1332 rdev->wiphy.probe_resp_offload))
3713b4e3 1333 goto nla_put_failure;
8fdc621d 1334
1b8ec87a
ZG		 1335 if ((rdev->wiphy.available_antennas_tx ||
1336 rdev->wiphy.available_antennas_rx) &&
1337 rdev->ops->get_antenna) {
3713b4e3
JB		 1338 u32 tx_ant = 0, rx_ant = 0;
1339 int res;
1b8ec87a 1340 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1341 if (!res) {
1342 if (nla_put_u32(msg,
1343 NL80211_ATTR_WIPHY_ANTENNA_TX,
1344 tx_ant) ||
1345 nla_put_u32(msg,
1346 NL80211_ATTR_WIPHY_ANTENNA_RX,
1347 rx_ant))
1348 goto nla_put_failure;
1349 }
1350 }
a293911d 1351
86e8cf98
JB		 1352 state->split_start++;
1353 if (state->split)
3713b4e3
JB		 1354 break;
1355 case 2:
1356 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1357 rdev->wiphy.interface_modes))
3713b4e3 1358 goto nla_put_failure;
86e8cf98
JB		 1359 state->split_start++;
1360 if (state->split)
3713b4e3
JB		 1361 break;
1362 case 3:
1363 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1364 if (!nl_bands)
1365 goto nla_put_failure;
f7ca38df 1366
86e8cf98
JB		 1367 for (band = state->band_start;
1368 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1369 struct ieee80211_supported_band *sband;
2e161f78 1370
1b8ec87a 1371 sband = rdev->wiphy.bands[band];
2e161f78 1372
3713b4e3
JB		 1373 if (!sband)
1374 continue;
1375
1376 nl_band = nla_nest_start(msg, band);
1377 if (!nl_band)
2e161f78 1378 goto nla_put_failure;
3713b4e3 1379
86e8cf98 1380 switch (state->chan_start) {
3713b4e3
JB		 1381 case 0:
1382 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1383 goto nla_put_failure;
86e8cf98
JB		 1384 state->chan_start++;
1385 if (state->split)
3713b4e3
JB		 1386 break;
1387 default:
1388 /* add frequencies */
1389 nl_freqs = nla_nest_start(
1390 msg, NL80211_BAND_ATTR_FREQS);
1391 if (!nl_freqs)
1392 goto nla_put_failure;
1393
86e8cf98 1394 for (i = state->chan_start - 1;
3713b4e3
JB		 1395 i < sband->n_channels;
1396 i++) {
1397 nl_freq = nla_nest_start(msg, i);
1398 if (!nl_freq)
1399 goto nla_put_failure;
1400
1401 chan = &sband->channels[i];
1402
86e8cf98
JB		 1403 if (nl80211_msg_put_channel(
1404 msg, chan,
1405 state->split))
3713b4e3
JB		 1406 goto nla_put_failure;
1407
1408 nla_nest_end(msg, nl_freq);
86e8cf98 1409 if (state->split)
3713b4e3
JB		 1410 break;
1411 }
1412 if (i < sband->n_channels)
86e8cf98 1413 state->chan_start = i + 2;
3713b4e3 1414 else
86e8cf98 1415 state->chan_start = 0;
3713b4e3
JB		 1416 nla_nest_end(msg, nl_freqs);
1417 }
1418
1419 nla_nest_end(msg, nl_band);
1420
86e8cf98 1421 if (state->split) {
3713b4e3 1422 /* start again here */
86e8cf98 1423 if (state->chan_start)
3713b4e3
JB		 1424 band--;
1425 break;
2e161f78 1426 }
2e161f78 1427 }
3713b4e3 1428 nla_nest_end(msg, nl_bands);
2e161f78 1429
3713b4e3 1430 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1431 state->band_start = band + 1;
3713b4e3 1432 else
86e8cf98 1433 state->band_start = 0;
74b70a4e 1434
3713b4e3 1435 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1436 if (state->band_start == 0 && state->chan_start == 0)
1437 state->split_start++;
1438 if (state->split)
3713b4e3
JB		 1439 break;
1440 case 4:
1441 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1442 if (!nl_cmds)
2e161f78
JB		 1443 goto nla_put_failure;
1444
3713b4e3
JB		 1445 i = 0;
1446#define CMD(op, n) \
1447 do { \
1b8ec87a 1448 if (rdev->ops->op) { \
3713b4e3
JB		 1449 i++; \
1450 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1451 goto nla_put_failure; \
1452 } \
1453 } while (0)
1454
1455 CMD(add_virtual_intf, NEW_INTERFACE);
1456 CMD(change_virtual_intf, SET_INTERFACE);
1457 CMD(add_key, NEW_KEY);
1458 CMD(start_ap, START_AP);
1459 CMD(add_station, NEW_STATION);
1460 CMD(add_mpath, NEW_MPATH);
1461 CMD(update_mesh_config, SET_MESH_CONFIG);
1462 CMD(change_bss, SET_BSS);
1463 CMD(auth, AUTHENTICATE);
1464 CMD(assoc, ASSOCIATE);
1465 CMD(deauth, DEAUTHENTICATE);
1466 CMD(disassoc, DISASSOCIATE);
1467 CMD(join_ibss, JOIN_IBSS);
1468 CMD(join_mesh, JOIN_MESH);
1469 CMD(set_pmksa, SET_PMKSA);
1470 CMD(del_pmksa, DEL_PMKSA);
1471 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1472 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1473 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1474 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1475 CMD(mgmt_tx, FRAME);
1476 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1477 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1478 i++;
1479 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1480 goto nla_put_failure;
2e161f78 1481 }
1b8ec87a
ZG		 1482 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1483 rdev->ops->join_mesh) {
3713b4e3
JB		 1484 i++;
1485 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1486 goto nla_put_failure;
1487 }
1488 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1489 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1490 CMD(tdls_mgmt, TDLS_MGMT);
1491 CMD(tdls_oper, TDLS_OPER);
1492 }
1b8ec87a 1493 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1494 CMD(sched_scan_start, START_SCHED_SCAN);
1495 CMD(probe_client, PROBE_CLIENT);
1496 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1497 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1498 i++;
1499 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1500 goto nla_put_failure;
1501 }
1502 CMD(start_p2p_device, START_P2P_DEVICE);
1503 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1504#ifdef CONFIG_NL80211_TESTMODE
1505 CMD(testmode_cmd, TESTMODE);
1506#endif
86e8cf98 1507 if (state->split) {
5de17984
AS		 1508 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1509 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1510 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1511 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1512 CMD(set_qos_map, SET_QOS_MAP);
5de17984 1513 }
02df00eb 1514 /* add into the if now */
3713b4e3 1515#undef CMD
ff1b6e69 1516
1b8ec87a 1517 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1518 i++;
1519 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1520 goto nla_put_failure;
ff1b6e69
JB		 1521 }
1522
1b8ec87a 1523 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1524 i++;
1525 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1526 goto nla_put_failure;
1527 }
1528
1529 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1530 state->split_start++;
1531 if (state->split)
3713b4e3
JB		 1532 break;
1533 case 5:
1b8ec87a
ZG		 1534 if (rdev->ops->remain_on_channel &&
1535 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1536 nla_put_u32(msg,
1537 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1538 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1539 goto nla_put_failure;
1540
1b8ec87a 1541 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1542 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1543 goto nla_put_failure;
1544
1545 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1546 goto nla_put_failure;
86e8cf98
JB		 1547 state->split_start++;
1548 if (state->split)
3713b4e3
JB		 1549 break;
1550 case 6:
1551#ifdef CONFIG_PM
1b8ec87a 1552 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1553 goto nla_put_failure;
86e8cf98
JB		 1554 state->split_start++;
1555 if (state->split)
3713b4e3
JB		 1556 break;
1557#else
86e8cf98 1558 state->split_start++;
dfb89c56 1559#endif
3713b4e3
JB		 1560 case 7:
1561 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1562 rdev->wiphy.software_iftypes))
3713b4e3 1563 goto nla_put_failure;
ff1b6e69 1564
1b8ec87a 1565 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1566 state->split))
3713b4e3 1567 goto nla_put_failure;
7527a782 1568
86e8cf98
JB		 1569 state->split_start++;
1570 if (state->split)
3713b4e3
JB		 1571 break;
1572 case 8:
1b8ec87a 1573 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1574 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1575 rdev->wiphy.ap_sme_capa))
3713b4e3 1576 goto nla_put_failure;
7527a782 1577
1b8ec87a 1578 features = rdev->wiphy.features;
fe1abafd
JB		 1579 /*
1580 * We can only add the per-channel limit information if the
1581 * dump is split, otherwise it makes it too big. Therefore
1582 * only advertise it in that case.
1583 */
86e8cf98 1584 if (state->split)
fe1abafd
JB		 1585 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1586 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1587 goto nla_put_failure;
562a7480 1588
1b8ec87a 1589 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1590 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1591 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1592 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1593 goto nla_put_failure;
1f074bd8 1594
1b8ec87a
ZG		 1595 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1596 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1597 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1598 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1599 goto nla_put_failure;
7e7c8926 1600
3713b4e3
JB		 1601 /*
1602 * Any information below this point is only available to
1603 * applications that can deal with it being split. This
1604 * helps ensure that newly added capabilities don't break
1605 * older tools by overrunning their buffers.
1606 *
1607 * We still increment split_start so that in the split
1608 * case we'll continue with more data in the next round,
1609 * but break unconditionally so unsplit data stops here.
1610 */
86e8cf98 1611 state->split_start++;
3713b4e3
JB		 1612 break;
1613 case 9:
1b8ec87a 1614 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1615 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1616 rdev->wiphy.extended_capabilities_len,
1617 rdev->wiphy.extended_capabilities) ||
fe1abafd 1618 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1619 rdev->wiphy.extended_capabilities_len,
1620 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1621 goto nla_put_failure;
a50df0c4 1622
1b8ec87a 1623 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1624 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1625 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1626 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1627 goto nla_put_failure;
1628
be29b99a
AK		 1629 state->split_start++;
1630 break;
1631 case 10:
1b8ec87a 1632 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1633 goto nla_put_failure;
1634
1b8ec87a 1635 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1636 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1637 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1638 goto nla_put_failure;
b43504cf 1639
1b8ec87a 1640 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1641 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1642 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1643 goto nla_put_failure;
1644
ad7e718c
JB		 1645 state->split_start++;
1646 break;
1647 case 11:
1b8ec87a 1648 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1649 const struct nl80211_vendor_cmd_info *info;
1650 struct nlattr *nested;
1651
1652 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1653 if (!nested)
1654 goto nla_put_failure;
1655
1b8ec87a
ZG		 1656 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1657 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1658 if (nla_put(msg, i + 1, sizeof(*info), info))
1659 goto nla_put_failure;
1660 }
1661 nla_nest_end(msg, nested);
1662 }
1663
1b8ec87a 1664 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1665 const struct nl80211_vendor_cmd_info *info;
1666 struct nlattr *nested;
ad7e718c 1667
567ffc35
JB		 1668 nested = nla_nest_start(msg,
1669 NL80211_ATTR_VENDOR_EVENTS);
1670 if (!nested)
ad7e718c 1671 goto nla_put_failure;
567ffc35 1672
1b8ec87a
ZG		 1673 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1674 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1675 if (nla_put(msg, i + 1, sizeof(*info), info))
1676 goto nla_put_failure;
1677 }
1678 nla_nest_end(msg, nested);
1679 }
9a774c78
AO		 1680 state->split_start++;
1681 break;
1682 case 12:
1683 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1684 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1685 rdev->wiphy.max_num_csa_counters))
1686 goto nla_put_failure;
01e0daa4 1687
3713b4e3 1688 /* done */
86e8cf98 1689 state->split_start = 0;
3713b4e3
JB		 1690 break;
1691 }
3bb20556 1692 finish:
55682965
JB		 1693 return genlmsg_end(msg, hdr);
1694
1695 nla_put_failure:
bc3ed28c
TG		 1696 genlmsg_cancel(msg, hdr);
1697 return -EMSGSIZE;
55682965
JB		 1698}
1699
86e8cf98
JB		 1700static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1701 struct netlink_callback *cb,
1702 struct nl80211_dump_wiphy_state *state)
1703{
1704 struct nlattr **tb = nl80211_fam.attrbuf;
1705 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1706 tb, nl80211_fam.maxattr, nl80211_policy);
1707 /* ignore parse errors for backward compatibility */
1708 if (ret)
1709 return 0;
1710
1711 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1712 if (tb[NL80211_ATTR_WIPHY])
1713 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1714 if (tb[NL80211_ATTR_WDEV])
1715 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1716 if (tb[NL80211_ATTR_IFINDEX]) {
1717 struct net_device *netdev;
1718 struct cfg80211_registered_device *rdev;
1719 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1720
7f2b8562 1721 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1722 if (!netdev)
1723 return -ENODEV;
1724 if (netdev->ieee80211_ptr) {
f26cbf40 1725 rdev = wiphy_to_rdev(
86e8cf98
JB		 1726 netdev->ieee80211_ptr->wiphy);
1727 state->filter_wiphy = rdev->wiphy_idx;
1728 }
86e8cf98
JB		 1729 }
1730
1731 return 0;
1732}
1733
55682965
JB		 1734static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1735{
645e77de 1736 int idx = 0, ret;
86e8cf98 1737 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1738 struct cfg80211_registered_device *rdev;
3a5a423b 1739
5fe231e8 1740 rtnl_lock();
86e8cf98
JB		 1741 if (!state) {
1742 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1743 if (!state) {
1744 rtnl_unlock();
86e8cf98 1745 return -ENOMEM;
3713b4e3 1746 }
86e8cf98
JB		 1747 state->filter_wiphy = -1;
1748 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1749 if (ret) {
1750 kfree(state);
1751 rtnl_unlock();
1752 return ret;
3713b4e3 1753 }
86e8cf98 1754 cb->args[0] = (long)state;
3713b4e3
JB		 1755 }
1756
1b8ec87a
ZG		 1757 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1758 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1759 continue;
86e8cf98 1760 if (++idx <= state->start)
55682965 1761 continue;
86e8cf98 1762 if (state->filter_wiphy != -1 &&
1b8ec87a 1763 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1764 continue;
1765 /* attempt to fit multiple wiphy data chunks into the skb */
1766 do {
3bb20556
JB		 1767 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1768 skb,
3713b4e3
JB		 1769 NETLINK_CB(cb->skb).portid,
1770 cb->nlh->nlmsg_seq,
86e8cf98 1771 NLM_F_MULTI, state);
3713b4e3
JB		 1772 if (ret < 0) {
1773 /*
1774 * If sending the wiphy data didn't fit (ENOBUFS
1775 * or EMSGSIZE returned), this SKB is still
1776 * empty (so it's not too big because another
1777 * wiphy dataset is already in the skb) and
1778 * we've not tried to adjust the dump allocation
1779 * yet ... then adjust the alloc size to be
1780 * bigger, and return 1 but with the empty skb.
1781 * This results in an empty message being RX'ed
1782 * in userspace, but that is ignored.
1783 *
1784 * We can then retry with the larger buffer.
1785 */
1786 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1787 !skb->len && !state->split &&
3713b4e3
JB		 1788 cb->min_dump_alloc < 4096) {
1789 cb->min_dump_alloc = 4096;
f12cb289 1790 state->split_start = 0;
d98cae64 1791 rtnl_unlock();
3713b4e3
JB		 1792 return 1;
1793 }
1794 idx--;
1795 break;
645e77de 1796 }
86e8cf98 1797 } while (state->split_start > 0);
3713b4e3 1798 break;
55682965 1799 }
5fe231e8 1800 rtnl_unlock();
55682965 1801
86e8cf98 1802 state->start = idx;
55682965
JB		 1803
1804 return skb->len;
1805}
1806
86e8cf98
JB		 1807static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1808{
1809 kfree((void *)cb->args[0]);
1810 return 0;
1811}
1812
55682965
JB		 1813static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1814{
1815 struct sk_buff *msg;
1b8ec87a 1816 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1817 struct nl80211_dump_wiphy_state state = {};
55682965 1818
645e77de 1819 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1820 if (!msg)
4c476991 1821 return -ENOMEM;
55682965 1822
3bb20556
JB		 1823 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1824 info->snd_portid, info->snd_seq, 0,
86e8cf98 1825 &state) < 0) {
4c476991
JB		 1826 nlmsg_free(msg);
1827 return -ENOBUFS;
1828 }
55682965 1829
134e6375 1830 return genlmsg_reply(msg, info);
55682965
JB		 1831}
1832
31888487
JM		 1833static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1834 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1835 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1836 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1837 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1838 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1839};
1840
1841static int parse_txq_params(struct nlattr *tb[],
1842 struct ieee80211_txq_params *txq_params)
1843{
a3304b0a 1844 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1845 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1846 !tb[NL80211_TXQ_ATTR_AIFS])
1847 return -EINVAL;
1848
a3304b0a 1849 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1850 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1851 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1852 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1853 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1854
a3304b0a
JB		 1855 if (txq_params->ac >= NL80211_NUM_ACS)
1856 return -EINVAL;
1857
31888487
JM		 1858 return 0;
1859}
1860
f444de05
JB		 1861static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1862{
1863 /*
cc1d2806
JB		 1864 * You can only set the channel explicitly for WDS interfaces,
1865 * all others have their channel managed via their respective
1866 * "establish a connection" command (connect, join, ...)
1867 *
1868 * For AP/GO and mesh mode, the channel can be set with the
1869 * channel userspace API, but is only stored and passed to the
1870 * low-level driver when the AP starts or the mesh is joined.
1871 * This is for backward compatibility, userspace can also give
1872 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1873 *
1874 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1875 * whatever else is going on, so they have their own special
1876 * operation to set the monitor channel if possible.
f444de05
JB		 1877 */
1878 return !wdev ||
1879 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1880 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1881 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1882 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1883}
1884
683b6d3b
JB		 1885static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1886 struct genl_info *info,
1887 struct cfg80211_chan_def *chandef)
1888{
dbeca2ea 1889 u32 control_freq;
683b6d3b
JB		 1890
1891 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1892 return -EINVAL;
1893
1894 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1895
1896 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1897 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1898 chandef->center_freq1 = control_freq;
1899 chandef->center_freq2 = 0;
683b6d3b
JB		 1900
1901 /* Primary channel not allowed */
1902 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1903 return -EINVAL;
1904
3d9d1d66
JB		 1905 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1906 enum nl80211_channel_type chantype;
1907
1908 chantype = nla_get_u32(
1909 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1910
1911 switch (chantype) {
1912 case NL80211_CHAN_NO_HT:
1913 case NL80211_CHAN_HT20:
1914 case NL80211_CHAN_HT40PLUS:
1915 case NL80211_CHAN_HT40MINUS:
1916 cfg80211_chandef_create(chandef, chandef->chan,
1917 chantype);
1918 break;
1919 default:
1920 return -EINVAL;
1921 }
1922 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1923 chandef->width =
1924 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1925 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1926 chandef->center_freq1 =
1927 nla_get_u32(
1928 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1929 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1930 chandef->center_freq2 =
1931 nla_get_u32(
1932 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1933 }
1934
9f5e8f6e 1935 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1936 return -EINVAL;
1937
9f5e8f6e
JB		 1938 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1939 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1940 return -EINVAL;
1941
2f301ab2
SW		 1942 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1943 chandef->width == NL80211_CHAN_WIDTH_10) &&
1944 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1945 return -EINVAL;
1946
683b6d3b
JB		 1947 return 0;
1948}
1949
f444de05 1950static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1951 struct net_device *dev,
f444de05
JB		 1952 struct genl_info *info)
1953{
683b6d3b 1954 struct cfg80211_chan_def chandef;
f444de05 1955 int result;
e8c9bd5b 1956 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1957 struct wireless_dev *wdev = NULL;
e8c9bd5b 1958
e16821bc
JM		 1959 if (dev)
1960 wdev = dev->ieee80211_ptr;
f444de05
JB		 1961 if (!nl80211_can_set_dev_channel(wdev))
1962 return -EOPNOTSUPP;
e16821bc
JM		 1963 if (wdev)
1964 iftype = wdev->iftype;
f444de05 1965
683b6d3b
JB		 1966 result = nl80211_parse_chandef(rdev, info, &chandef);
1967 if (result)
1968 return result;
f444de05 1969
e8c9bd5b 1970 switch (iftype) {
aa430da4
JB		 1971 case NL80211_IFTYPE_AP:
1972 case NL80211_IFTYPE_P2P_GO:
174e0cd2 1973 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 1974 result = -EINVAL;
1975 break;
1976 }
e16821bc
JM		 1977 if (wdev->beacon_interval) {
1978 if (!dev || !rdev->ops->set_ap_chanwidth ||
1979 !(rdev->wiphy.features &
1980 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1981 result = -EBUSY;
1982 break;
1983 }
1984
1985 /* Only allow dynamic channel width changes */
1986 if (chandef.chan != wdev->preset_chandef.chan) {
1987 result = -EBUSY;
1988 break;
1989 }
1990 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
1991 if (result)
1992 break;
1993 }
683b6d3b 1994 wdev->preset_chandef = chandef;
aa430da4
JB		 1995 result = 0;
1996 break;
cc1d2806 1997 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1998 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1999 break;
e8c9bd5b 2000 case NL80211_IFTYPE_MONITOR:
683b6d3b 2001 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2002 break;
aa430da4 2003 default:
e8c9bd5b 2004 result = -EINVAL;
f444de05 2005 }
f444de05
JB		 2006
2007 return result;
2008}
2009
2010static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2011{
4c476991
JB		 2012 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2013 struct net_device *netdev = info->user_ptr[1];
f444de05 2014
e16821bc 2015 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2016}
2017
e8347eba
BJ		 2018static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2019{
43b19952
JB		 2020 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2021 struct net_device *dev = info->user_ptr[1];
2022 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2023 const u8 *bssid;
e8347eba
BJ		 2024
2025 if (!info->attrs[NL80211_ATTR_MAC])
2026 return -EINVAL;
2027
43b19952
JB		 2028 if (netif_running(dev))
2029 return -EBUSY;
e8347eba 2030
43b19952
JB		 2031 if (!rdev->ops->set_wds_peer)
2032 return -EOPNOTSUPP;
e8347eba 2033
43b19952
JB		 2034 if (wdev->iftype != NL80211_IFTYPE_WDS)
2035 return -EOPNOTSUPP;
e8347eba
BJ		 2036
2037 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2038 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2039}
2040
2041
55682965
JB		 2042static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2043{
2044 struct cfg80211_registered_device *rdev;
f444de05
JB		 2045 struct net_device *netdev = NULL;
2046 struct wireless_dev *wdev;
a1e567c8 2047 int result = 0, rem_txq_params = 0;
31888487 2048 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2049 u32 changed;
2050 u8 retry_short = 0, retry_long = 0;
2051 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2052 u8 coverage_class = 0;
55682965 2053
5fe231e8
JB		 2054 ASSERT_RTNL();
2055
f444de05
JB		 2056 /*
2057 * Try to find the wiphy and netdev. Normally this
2058 * function shouldn't need the netdev, but this is
2059 * done for backward compatibility -- previously
2060 * setting the channel was done per wiphy, but now
2061 * it is per netdev. Previous userland like hostapd
2062 * also passed a netdev to set_wiphy, so that it is
2063 * possible to let that go to the right netdev!
2064 */
4bbf4d56 2065
f444de05
JB		 2066 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2067 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2068
7f2b8562 2069 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2070 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2071 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2072 else
f444de05 2073 netdev = NULL;
4bbf4d56
JB		 2074 }
2075
f444de05 2076 if (!netdev) {
878d9ec7
JB		 2077 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2078 info->attrs);
5fe231e8 2079 if (IS_ERR(rdev))
4c476991 2080 return PTR_ERR(rdev);
f444de05
JB		 2081 wdev = NULL;
2082 netdev = NULL;
2083 result = 0;
71fe96bf 2084 } else
f444de05 2085 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2086
2087 /*
2088 * end workaround code, by now the rdev is available
2089 * and locked, and wdev may or may not be NULL.
2090 */
4bbf4d56
JB		 2091
2092 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2093 result = cfg80211_dev_rename(
2094 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2095
4bbf4d56 2096 if (result)
7f2b8562 2097 return result;
31888487
JM		 2098
2099 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2100 struct ieee80211_txq_params txq_params;
2101 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2102
7f2b8562
YX		 2103 if (!rdev->ops->set_txq_params)
2104 return -EOPNOTSUPP;
31888487 2105
7f2b8562
YX		 2106 if (!netdev)
2107 return -EINVAL;
f70f01c2 2108
133a3ff2 2109 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2110 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2111 return -EINVAL;
133a3ff2 2112
7f2b8562
YX		 2113 if (!netif_running(netdev))
2114 return -ENETDOWN;
2b5f8b0b 2115
31888487
JM		 2116 nla_for_each_nested(nl_txq_params,
2117 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2118 rem_txq_params) {
ae811e21
JB		 2119 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2120 nla_data(nl_txq_params),
2121 nla_len(nl_txq_params),
2122 txq_params_policy);
2123 if (result)
2124 return result;
31888487
JM		 2125 result = parse_txq_params(tb, &txq_params);
2126 if (result)
7f2b8562 2127 return result;
31888487 2128
e35e4d28
HG		 2129 result = rdev_set_txq_params(rdev, netdev,
2130 &txq_params);
31888487 2131 if (result)
7f2b8562 2132 return result;
31888487
JM		 2133 }
2134 }
55682965 2135
72bdcf34 2136 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2137 result = __nl80211_set_channel(
2138 rdev,
2139 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2140 info);
72bdcf34 2141 if (result)
7f2b8562 2142 return result;
72bdcf34
JM		 2143 }
2144
98d2ff8b 2145 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2146 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2147 enum nl80211_tx_power_setting type;
2148 int idx, mbm = 0;
2149
c8442118
JB		 2150 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2151 txp_wdev = NULL;
2152
7f2b8562
YX		 2153 if (!rdev->ops->set_tx_power)
2154 return -EOPNOTSUPP;
98d2ff8b
JO		 2155
2156 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2157 type = nla_get_u32(info->attrs[idx]);
2158
2159 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2160 (type != NL80211_TX_POWER_AUTOMATIC))
2161 return -EINVAL;
98d2ff8b
JO		 2162
2163 if (type != NL80211_TX_POWER_AUTOMATIC) {
2164 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2165 mbm = nla_get_u32(info->attrs[idx]);
2166 }
2167
c8442118 2168 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2169 if (result)
7f2b8562 2170 return result;
98d2ff8b
JO		 2171 }
2172
afe0cbf8
BR		 2173 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2174 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2175 u32 tx_ant, rx_ant;
7f531e03
BR		 2176 if ((!rdev->wiphy.available_antennas_tx &&
2177 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2178 !rdev->ops->set_antenna)
2179 return -EOPNOTSUPP;
afe0cbf8
BR		 2180
2181 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2182 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2183
a7ffac95 2184 /* reject antenna configurations which don't match the
7f531e03
BR		 2185 * available antenna masks, except for the "all" mask */
2186 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2187 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2188 return -EINVAL;
a7ffac95 2189
7f531e03
BR		 2190 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2191 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2192
e35e4d28 2193 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2194 if (result)
7f2b8562 2195 return result;
afe0cbf8
BR		 2196 }
2197
b9a5f8ca
JM		 2198 changed = 0;
2199
2200 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2201 retry_short = nla_get_u8(
2202 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2203 if (retry_short == 0)
2204 return -EINVAL;
2205
b9a5f8ca
JM		 2206 changed |= WIPHY_PARAM_RETRY_SHORT;
2207 }
2208
2209 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2210 retry_long = nla_get_u8(
2211 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2212 if (retry_long == 0)
2213 return -EINVAL;
2214
b9a5f8ca
JM		 2215 changed |= WIPHY_PARAM_RETRY_LONG;
2216 }
2217
2218 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2219 frag_threshold = nla_get_u32(
2220 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2221 if (frag_threshold < 256)
2222 return -EINVAL;
2223
b9a5f8ca
JM		 2224 if (frag_threshold != (u32) -1) {
2225 /*
2226 * Fragments (apart from the last one) are required to
2227 * have even length. Make the fragmentation code
2228 * simpler by stripping LSB should someone try to use
2229 * odd threshold value.
2230 */
2231 frag_threshold &= ~0x1;
2232 }
2233 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2234 }
2235
2236 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2237 rts_threshold = nla_get_u32(
2238 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2239 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2240 }
2241
81077e82 2242 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2243 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2244 return -EINVAL;
2245
81077e82
LT		 2246 coverage_class = nla_get_u8(
2247 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2248 changed |= WIPHY_PARAM_COVERAGE_CLASS;
3057dbfd
LB		 2249 }
2250
2251 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2252 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2253 return -EOPNOTSUPP;
2254
2255 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2256 }
2257
b9a5f8ca
JM		 2258 if (changed) {
2259 u8 old_retry_short, old_retry_long;
2260 u32 old_frag_threshold, old_rts_threshold;
81077e82 2261 u8 old_coverage_class;
b9a5f8ca 2262
7f2b8562
YX		 2263 if (!rdev->ops->set_wiphy_params)
2264 return -EOPNOTSUPP;
b9a5f8ca
JM		 2265
2266 old_retry_short = rdev->wiphy.retry_short;
2267 old_retry_long = rdev->wiphy.retry_long;
2268 old_frag_threshold = rdev->wiphy.frag_threshold;
2269 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2270 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2271
2272 if (changed & WIPHY_PARAM_RETRY_SHORT)
2273 rdev->wiphy.retry_short = retry_short;
2274 if (changed & WIPHY_PARAM_RETRY_LONG)
2275 rdev->wiphy.retry_long = retry_long;
2276 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2277 rdev->wiphy.frag_threshold = frag_threshold;
2278 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2279 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2280 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2281 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2282
e35e4d28 2283 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2284 if (result) {
2285 rdev->wiphy.retry_short = old_retry_short;
2286 rdev->wiphy.retry_long = old_retry_long;
2287 rdev->wiphy.frag_threshold = old_frag_threshold;
2288 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2289 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2290 }
2291 }
7f2b8562 2292 return 0;
55682965
JB		 2293}
2294
71bbc994
JB		 2295static inline u64 wdev_id(struct wireless_dev *wdev)
2296{
2297 return (u64)wdev->identifier |
f26cbf40 2298 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2299}
55682965 2300
683b6d3b 2301static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2302 const struct cfg80211_chan_def *chandef)
683b6d3b 2303{
9f5e8f6e 2304 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2305
683b6d3b
JB		 2306 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2307 chandef->chan->center_freq))
2308 return -ENOBUFS;
3d9d1d66
JB		 2309 switch (chandef->width) {
2310 case NL80211_CHAN_WIDTH_20_NOHT:
2311 case NL80211_CHAN_WIDTH_20:
2312 case NL80211_CHAN_WIDTH_40:
2313 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2314 cfg80211_get_chandef_type(chandef)))
2315 return -ENOBUFS;
2316 break;
2317 default:
2318 break;
2319 }
2320 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2321 return -ENOBUFS;
2322 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2323 return -ENOBUFS;
2324 if (chandef->center_freq2 &&
2325 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2326 return -ENOBUFS;
2327 return 0;
2328}
2329
15e47304 2330static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2331 struct cfg80211_registered_device *rdev,
72fb2abc 2332 struct wireless_dev *wdev)
55682965 2333{
72fb2abc 2334 struct net_device *dev = wdev->netdev;
55682965
JB		 2335 void *hdr;
2336
15e47304 2337 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2338 if (!hdr)
2339 return -1;
2340
72fb2abc
JB		 2341 if (dev &&
2342 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2343 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2344 goto nla_put_failure;
2345
2346 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2347 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2348 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2349 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2350 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2351 rdev->devlist_generation ^
2352 (cfg80211_rdev_list_generation << 2)))
2353 goto nla_put_failure;
f5ea9120 2354
5b7ccaf3 2355 if (rdev->ops->get_channel) {
683b6d3b
JB		 2356 int ret;
2357 struct cfg80211_chan_def chandef;
2358
2359 ret = rdev_get_channel(rdev, wdev, &chandef);
2360 if (ret == 0) {
2361 if (nl80211_send_chandef(msg, &chandef))
2362 goto nla_put_failure;
2363 }
d91df0e3
PF		 2364 }
2365
b84e7a05
AQ		 2366 if (wdev->ssid_len) {
2367 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2368 goto nla_put_failure;
2369 }
2370
55682965
JB		 2371 return genlmsg_end(msg, hdr);
2372
2373 nla_put_failure:
bc3ed28c
TG		 2374 genlmsg_cancel(msg, hdr);
2375 return -EMSGSIZE;
55682965
JB		 2376}
2377
2378static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2379{
2380 int wp_idx = 0;
2381 int if_idx = 0;
2382 int wp_start = cb->args[0];
2383 int if_start = cb->args[1];
f5ea9120 2384 struct cfg80211_registered_device *rdev;
55682965
JB		 2385 struct wireless_dev *wdev;
2386
5fe231e8 2387 rtnl_lock();
f5ea9120
JB		 2388 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2389 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2390 continue;
bba95fef
JB		 2391 if (wp_idx < wp_start) {
2392 wp_idx++;
55682965 2393 continue;
bba95fef 2394 }
55682965
JB		 2395 if_idx = 0;
2396
89a54e48 2397 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2398 if (if_idx < if_start) {
2399 if_idx++;
55682965 2400 continue;
bba95fef 2401 }
15e47304 2402 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2403 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2404 rdev, wdev) < 0) {
bba95fef
JB		 2405 goto out;
2406 }
2407 if_idx++;
55682965 2408 }
bba95fef
JB		 2409
2410 wp_idx++;
55682965 2411 }
bba95fef 2412 out:
5fe231e8 2413 rtnl_unlock();
55682965
JB		 2414
2415 cb->args[0] = wp_idx;
2416 cb->args[1] = if_idx;
2417
2418 return skb->len;
2419}
2420
2421static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2422{
2423 struct sk_buff *msg;
1b8ec87a 2424 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2425 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2426
fd2120ca 2427 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2428 if (!msg)
4c476991 2429 return -ENOMEM;
55682965 2430
15e47304 2431 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1b8ec87a 2432 rdev, wdev) < 0) {
4c476991
JB		 2433 nlmsg_free(msg);
2434 return -ENOBUFS;
2435 }
55682965 2436
134e6375 2437 return genlmsg_reply(msg, info);
55682965
JB		 2438}
2439
66f7ac50
MW		 2440static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2441 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2442 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2443 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2444 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2445 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2446 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2447};
2448
2449static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2450{
2451 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2452 int flag;
2453
2454 *mntrflags = 0;
2455
2456 if (!nla)
2457 return -EINVAL;
2458
2459 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2460 nla, mntr_flags_policy))
2461 return -EINVAL;
2462
2463 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2464 if (flags[flag])
2465 *mntrflags |= (1<<flag);
2466
2467 return 0;
2468}
2469
9bc383de 2470static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2471 struct net_device *netdev, u8 use_4addr,
2472 enum nl80211_iftype iftype)
9bc383de 2473{
ad4bb6f8 2474 if (!use_4addr) {
f350a0a8 2475 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2476 return -EBUSY;
9bc383de 2477 return 0;
ad4bb6f8 2478 }
9bc383de
JB		 2479
2480 switch (iftype) {
2481 case NL80211_IFTYPE_AP_VLAN:
2482 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2483 return 0;
2484 break;
2485 case NL80211_IFTYPE_STATION:
2486 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2487 return 0;
2488 break;
2489 default:
2490 break;
2491 }
2492
2493 return -EOPNOTSUPP;
2494}
2495
55682965
JB		 2496static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2497{
4c476991 2498 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2499 struct vif_params params;
e36d56b6 2500 int err;
04a773ad 2501 enum nl80211_iftype otype, ntype;
4c476991 2502 struct net_device *dev = info->user_ptr[1];
92ffe055 2503 u32 _flags, *flags = NULL;
ac7f9cfa 2504 bool change = false;
55682965 2505
2ec600d6
LCC		 2506 memset(&params, 0, sizeof(params));
2507
04a773ad 2508 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2509
723b038d 2510 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2511 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2512 if (otype != ntype)
ac7f9cfa 2513 change = true;
4c476991
JB		 2514 if (ntype > NL80211_IFTYPE_MAX)
2515 return -EINVAL;
723b038d
JB		 2516 }
2517
92ffe055 2518 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2519 struct wireless_dev *wdev = dev->ieee80211_ptr;
2520
4c476991
JB		 2521 if (ntype != NL80211_IFTYPE_MESH_POINT)
2522 return -EINVAL;
29cbe68c
JB		 2523 if (netif_running(dev))
2524 return -EBUSY;
2525
2526 wdev_lock(wdev);
2527 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2528 IEEE80211_MAX_MESH_ID_LEN);
2529 wdev->mesh_id_up_len =
2530 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2531 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2532 wdev->mesh_id_up_len);
2533 wdev_unlock(wdev);
2ec600d6
LCC		 2534 }
2535
8b787643
FF		 2536 if (info->attrs[NL80211_ATTR_4ADDR]) {
2537 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2538 change = true;
ad4bb6f8 2539 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2540 if (err)
4c476991 2541 return err;
8b787643
FF		 2542 } else {
2543 params.use_4addr = -1;
2544 }
2545
92ffe055 2546 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2547 if (ntype != NL80211_IFTYPE_MONITOR)
2548 return -EINVAL;
92ffe055
JB		 2549 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2550 &_flags);
ac7f9cfa 2551 if (err)
4c476991 2552 return err;
ac7f9cfa
JB		 2553
2554 flags = &_flags;
2555 change = true;
92ffe055 2556 }
3b85875a 2557
18003297 2558 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2559 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2560 return -EOPNOTSUPP;
2561
ac7f9cfa 2562 if (change)
3d54d255 2563 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2564 else
2565 err = 0;
60719ffd 2566
9bc383de
JB		 2567 if (!err && params.use_4addr != -1)
2568 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2569
55682965
JB		 2570 return err;
2571}
2572
2573static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2574{
4c476991 2575 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2576 struct vif_params params;
84efbb84 2577 struct wireless_dev *wdev;
1c90f9d4 2578 struct sk_buff *msg;
55682965
JB		 2579 int err;
2580 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2581 u32 flags;
55682965 2582
78f22b6a
JB		 2583 /* to avoid failing a new interface creation due to pending removal */
2584 cfg80211_destroy_ifaces(rdev);
2585
2ec600d6
LCC		 2586 memset(&params, 0, sizeof(params));
2587
55682965
JB		 2588 if (!info->attrs[NL80211_ATTR_IFNAME])
2589 return -EINVAL;
2590
2591 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2592 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2593 if (type > NL80211_IFTYPE_MAX)
2594 return -EINVAL;
2595 }
2596
79c97e97 2597 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2598 !(rdev->wiphy.interface_modes & (1 << type)))
2599 return -EOPNOTSUPP;
55682965 2600
1c18f145
AS		 2601 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2602 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2603 ETH_ALEN);
2604 if (!is_valid_ether_addr(params.macaddr))
2605 return -EADDRNOTAVAIL;
2606 }
2607
9bc383de 2608 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2609 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2610 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2611 if (err)
4c476991 2612 return err;
9bc383de 2613 }
8b787643 2614
1c90f9d4
JB		 2615 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2616 if (!msg)
2617 return -ENOMEM;
2618
66f7ac50
MW		 2619 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2620 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2621 &flags);
e057d3c3 2622
18003297 2623 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2624 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2625 return -EOPNOTSUPP;
2626
e35e4d28
HG		 2627 wdev = rdev_add_virtual_intf(rdev,
2628 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2629 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2630 if (IS_ERR(wdev)) {
2631 nlmsg_free(msg);
84efbb84 2632 return PTR_ERR(wdev);
1c90f9d4 2633 }
2ec600d6 2634
78f22b6a
JB		 2635 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2636 wdev->owner_nlportid = info->snd_portid;
2637
98104fde
JB		 2638 switch (type) {
2639 case NL80211_IFTYPE_MESH_POINT:
2640 if (!info->attrs[NL80211_ATTR_MESH_ID])
2641 break;
29cbe68c
JB		 2642 wdev_lock(wdev);
2643 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2644 IEEE80211_MAX_MESH_ID_LEN);
2645 wdev->mesh_id_up_len =
2646 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2647 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2648 wdev->mesh_id_up_len);
2649 wdev_unlock(wdev);
98104fde
JB		 2650 break;
2651 case NL80211_IFTYPE_P2P_DEVICE:
2652 /*
2653 * P2P Device doesn't have a netdev, so doesn't go
2654 * through the netdev notifier and must be added here
2655 */
2656 mutex_init(&wdev->mtx);
2657 INIT_LIST_HEAD(&wdev->event_list);
2658 spin_lock_init(&wdev->event_lock);
2659 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2660 spin_lock_init(&wdev->mgmt_registrations_lock);
2661
98104fde
JB		 2662 wdev->identifier = ++rdev->wdev_id;
2663 list_add_rcu(&wdev->list, &rdev->wdev_list);
2664 rdev->devlist_generation++;
98104fde
JB		 2665 break;
2666 default:
2667 break;
29cbe68c
JB		 2668 }
2669
15e47304 2670 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2671 rdev, wdev) < 0) {
2672 nlmsg_free(msg);
2673 return -ENOBUFS;
2674 }
2675
2676 return genlmsg_reply(msg, info);
55682965
JB		 2677}
2678
2679static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2680{
4c476991 2681 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2682 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2683
4c476991
JB		 2684 if (!rdev->ops->del_virtual_intf)
2685 return -EOPNOTSUPP;
55682965 2686
84efbb84
JB		 2687 /*
2688 * If we remove a wireless device without a netdev then clear
2689 * user_ptr[1] so that nl80211_post_doit won't dereference it
2690 * to check if it needs to do dev_put(). Otherwise it crashes
2691 * since the wdev has been freed, unlike with a netdev where
2692 * we need the dev_put() for the netdev to really be freed.
2693 */
2694 if (!wdev->netdev)
2695 info->user_ptr[1] = NULL;
2696
e35e4d28 2697 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2698}
2699
1d9d9213
SW		 2700static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2701{
2702 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2703 struct net_device *dev = info->user_ptr[1];
2704 u16 noack_map;
2705
2706 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2707 return -EINVAL;
2708
2709 if (!rdev->ops->set_noack_map)
2710 return -EOPNOTSUPP;
2711
2712 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2713
e35e4d28 2714 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2715}
2716
41ade00f
JB		 2717struct get_key_cookie {
2718 struct sk_buff *msg;
2719 int error;
b9454e83 2720 int idx;
41ade00f
JB		 2721};
2722
2723static void get_key_callback(void *c, struct key_params *params)
2724{
b9454e83 2725 struct nlattr *key;
41ade00f
JB		 2726 struct get_key_cookie *cookie = c;
2727
9360ffd1
DM		 2728 if ((params->key &&
2729 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2730 params->key_len, params->key)) ||
2731 (params->seq &&
2732 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2733 params->seq_len, params->seq)) ||
2734 (params->cipher &&
2735 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2736 params->cipher)))
2737 goto nla_put_failure;
41ade00f 2738
b9454e83
JB		 2739 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2740 if (!key)
2741 goto nla_put_failure;
2742
9360ffd1
DM		 2743 if ((params->key &&
2744 nla_put(cookie->msg, NL80211_KEY_DATA,
2745 params->key_len, params->key)) ||
2746 (params->seq &&
2747 nla_put(cookie->msg, NL80211_KEY_SEQ,
2748 params->seq_len, params->seq)) ||
2749 (params->cipher &&
2750 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2751 params->cipher)))
2752 goto nla_put_failure;
b9454e83 2753
9360ffd1
DM		 2754 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2755 goto nla_put_failure;
b9454e83
JB		 2756
2757 nla_nest_end(cookie->msg, key);
2758
41ade00f
JB		 2759 return;
2760 nla_put_failure:
2761 cookie->error = 1;
2762}
2763
2764static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2765{
4c476991 2766 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2767 int err;
4c476991 2768 struct net_device *dev = info->user_ptr[1];
41ade00f 2769 u8 key_idx = 0;
e31b8213
JB		 2770 const u8 *mac_addr = NULL;
2771 bool pairwise;
41ade00f
JB		 2772 struct get_key_cookie cookie = {
2773 .error = 0,
2774 };
2775 void *hdr;
2776 struct sk_buff *msg;
2777
2778 if (info->attrs[NL80211_ATTR_KEY_IDX])
2779 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2780
3cfcf6ac 2781 if (key_idx > 5)
41ade00f
JB		 2782 return -EINVAL;
2783
2784 if (info->attrs[NL80211_ATTR_MAC])
2785 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2786
e31b8213
JB		 2787 pairwise = !!mac_addr;
2788 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2789 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2790 if (kt >= NUM_NL80211_KEYTYPES)
2791 return -EINVAL;
2792 if (kt != NL80211_KEYTYPE_GROUP &&
2793 kt != NL80211_KEYTYPE_PAIRWISE)
2794 return -EINVAL;
2795 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2796 }
2797
4c476991
JB		 2798 if (!rdev->ops->get_key)
2799 return -EOPNOTSUPP;
41ade00f 2800
fd2120ca 2801 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2802 if (!msg)
2803 return -ENOMEM;
41ade00f 2804
15e47304 2805 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2806 NL80211_CMD_NEW_KEY);
cb35fba3 2807 if (!hdr)
9fe271af 2808 goto nla_put_failure;
41ade00f
JB		 2809
2810 cookie.msg = msg;
b9454e83 2811 cookie.idx = key_idx;
41ade00f 2812
9360ffd1
DM		 2813 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2814 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2815 goto nla_put_failure;
2816 if (mac_addr &&
2817 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2818 goto nla_put_failure;
41ade00f 2819
e31b8213
JB		 2820 if (pairwise && mac_addr &&
2821 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2822 return -ENOENT;
2823
e35e4d28
HG		 2824 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2825 get_key_callback);
41ade00f
JB		 2826
2827 if (err)
6c95e2a2 2828 goto free_msg;
41ade00f
JB		 2829
2830 if (cookie.error)
2831 goto nla_put_failure;
2832
2833 genlmsg_end(msg, hdr);
4c476991 2834 return genlmsg_reply(msg, info);
41ade00f
JB		 2835
2836 nla_put_failure:
2837 err = -ENOBUFS;
6c95e2a2 2838 free_msg:
41ade00f 2839 nlmsg_free(msg);
41ade00f
JB		 2840 return err;
2841}
2842
2843static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2844{
4c476991 2845 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2846 struct key_parse key;
41ade00f 2847 int err;
4c476991 2848 struct net_device *dev = info->user_ptr[1];
41ade00f 2849
b9454e83
JB		 2850 err = nl80211_parse_key(info, &key);
2851 if (err)
2852 return err;
41ade00f 2853
b9454e83 2854 if (key.idx < 0)
41ade00f
JB		 2855 return -EINVAL;
2856
b9454e83
JB		 2857 /* only support setting default key */
2858 if (!key.def && !key.defmgmt)
41ade00f
JB		 2859 return -EINVAL;
2860
dbd2fd65 2861 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2862
dbd2fd65
JB		 2863 if (key.def) {
2864 if (!rdev->ops->set_default_key) {
2865 err = -EOPNOTSUPP;
2866 goto out;
2867 }
41ade00f 2868
dbd2fd65
JB		 2869 err = nl80211_key_allowed(dev->ieee80211_ptr);
2870 if (err)
2871 goto out;
2872
e35e4d28 2873 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2874 key.def_uni, key.def_multi);
2875
2876 if (err)
2877 goto out;
fffd0934 2878
3d23e349 2879#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2880 dev->ieee80211_ptr->wext.default_key = key.idx;
2881#endif
2882 } else {
2883 if (key.def_uni || !key.def_multi) {
2884 err = -EINVAL;
2885 goto out;
2886 }
2887
2888 if (!rdev->ops->set_default_mgmt_key) {
2889 err = -EOPNOTSUPP;
2890 goto out;
2891 }
2892
2893 err = nl80211_key_allowed(dev->ieee80211_ptr);
2894 if (err)
2895 goto out;
2896
e35e4d28 2897 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2898 if (err)
2899 goto out;
2900
2901#ifdef CONFIG_CFG80211_WEXT
2902 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2903#endif
dbd2fd65
JB		 2904 }
2905
2906 out:
fffd0934 2907 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2908
41ade00f
JB		 2909 return err;
2910}
2911
2912static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2913{
4c476991 2914 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2915 int err;
4c476991 2916 struct net_device *dev = info->user_ptr[1];
b9454e83 2917 struct key_parse key;
e31b8213 2918 const u8 *mac_addr = NULL;
41ade00f 2919
b9454e83
JB		 2920 err = nl80211_parse_key(info, &key);
2921 if (err)
2922 return err;
41ade00f 2923
b9454e83 2924 if (!key.p.key)
41ade00f
JB		 2925 return -EINVAL;
2926
41ade00f
JB		 2927 if (info->attrs[NL80211_ATTR_MAC])
2928 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2929
e31b8213
JB		 2930 if (key.type == -1) {
2931 if (mac_addr)
2932 key.type = NL80211_KEYTYPE_PAIRWISE;
2933 else
2934 key.type = NL80211_KEYTYPE_GROUP;
2935 }
2936
2937 /* for now */
2938 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2939 key.type != NL80211_KEYTYPE_GROUP)
2940 return -EINVAL;
2941
4c476991
JB		 2942 if (!rdev->ops->add_key)
2943 return -EOPNOTSUPP;
25e47c18 2944
e31b8213
JB		 2945 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2946 key.type == NL80211_KEYTYPE_PAIRWISE,
2947 mac_addr))
4c476991 2948 return -EINVAL;
41ade00f 2949
fffd0934
JB		 2950 wdev_lock(dev->ieee80211_ptr);
2951 err = nl80211_key_allowed(dev->ieee80211_ptr);
2952 if (!err)
e35e4d28
HG		 2953 err = rdev_add_key(rdev, dev, key.idx,
2954 key.type == NL80211_KEYTYPE_PAIRWISE,
2955 mac_addr, &key.p);
fffd0934 2956 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2957
41ade00f
JB		 2958 return err;
2959}
2960
2961static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2962{
4c476991 2963 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2964 int err;
4c476991 2965 struct net_device *dev = info->user_ptr[1];
41ade00f 2966 u8 *mac_addr = NULL;
b9454e83 2967 struct key_parse key;
41ade00f 2968
b9454e83
JB		 2969 err = nl80211_parse_key(info, &key);
2970 if (err)
2971 return err;
41ade00f
JB		 2972
2973 if (info->attrs[NL80211_ATTR_MAC])
2974 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2975
e31b8213
JB		 2976 if (key.type == -1) {
2977 if (mac_addr)
2978 key.type = NL80211_KEYTYPE_PAIRWISE;
2979 else
2980 key.type = NL80211_KEYTYPE_GROUP;
2981 }
2982
2983 /* for now */
2984 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2985 key.type != NL80211_KEYTYPE_GROUP)
2986 return -EINVAL;
2987
4c476991
JB		 2988 if (!rdev->ops->del_key)
2989 return -EOPNOTSUPP;
41ade00f 2990
fffd0934
JB		 2991 wdev_lock(dev->ieee80211_ptr);
2992 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2993
2994 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2995 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2996 err = -ENOENT;
2997
fffd0934 2998 if (!err)
e35e4d28
HG		 2999 err = rdev_del_key(rdev, dev, key.idx,
3000 key.type == NL80211_KEYTYPE_PAIRWISE,
3001 mac_addr);
41ade00f 3002
3d23e349 3003#ifdef CONFIG_CFG80211_WEXT
08645126 3004 if (!err) {
b9454e83 3005 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3006 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3007 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3008 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3009 }
3010#endif
fffd0934 3011 wdev_unlock(dev->ieee80211_ptr);
08645126 3012
41ade00f
JB		 3013 return err;
3014}
3015
77765eaf
VT		 3016/* This function returns an error or the number of nested attributes */
3017static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3018{
3019 struct nlattr *attr;
3020 int n_entries = 0, tmp;
3021
3022 nla_for_each_nested(attr, nl_attr, tmp) {
3023 if (nla_len(attr) != ETH_ALEN)
3024 return -EINVAL;
3025
3026 n_entries++;
3027 }
3028
3029 return n_entries;
3030}
3031
3032/*
3033 * This function parses ACL information and allocates memory for ACL data.
3034 * On successful return, the calling function is responsible to free the
3035 * ACL buffer returned by this function.
3036 */
3037static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3038 struct genl_info *info)
3039{
3040 enum nl80211_acl_policy acl_policy;
3041 struct nlattr *attr;
3042 struct cfg80211_acl_data *acl;
3043 int i = 0, n_entries, tmp;
3044
3045 if (!wiphy->max_acl_mac_addrs)
3046 return ERR_PTR(-EOPNOTSUPP);
3047
3048 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3049 return ERR_PTR(-EINVAL);
3050
3051 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3052 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3053 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3054 return ERR_PTR(-EINVAL);
3055
3056 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3057 return ERR_PTR(-EINVAL);
3058
3059 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3060 if (n_entries < 0)
3061 return ERR_PTR(n_entries);
3062
3063 if (n_entries > wiphy->max_acl_mac_addrs)
3064 return ERR_PTR(-ENOTSUPP);
3065
3066 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3067 GFP_KERNEL);
3068 if (!acl)
3069 return ERR_PTR(-ENOMEM);
3070
3071 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3072 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3073 i++;
3074 }
3075
3076 acl->n_acl_entries = n_entries;
3077 acl->acl_policy = acl_policy;
3078
3079 return acl;
3080}
3081
3082static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3083{
3084 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3085 struct net_device *dev = info->user_ptr[1];
3086 struct cfg80211_acl_data *acl;
3087 int err;
3088
3089 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3090 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3091 return -EOPNOTSUPP;
3092
3093 if (!dev->ieee80211_ptr->beacon_interval)
3094 return -EINVAL;
3095
3096 acl = parse_acl_data(&rdev->wiphy, info);
3097 if (IS_ERR(acl))
3098 return PTR_ERR(acl);
3099
3100 err = rdev_set_mac_acl(rdev, dev, acl);
3101
3102 kfree(acl);
3103
3104 return err;
3105}
3106
a1193be8 3107static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3108 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3109{
8860020e 3110 bool haveinfo = false;
ed1b6cc7 3111
a1193be8
SW		 3112 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3113 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3114 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3115 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3116 return -EINVAL;
3117
8860020e 3118 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3119
a1193be8
SW		 3120 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3121 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3122 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3123 if (!bcn->head_len)
3124 return -EINVAL;
3125 haveinfo = true;
ed1b6cc7
JB		 3126 }
3127
a1193be8
SW		 3128 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3129 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3130 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3131 haveinfo = true;
ed1b6cc7
JB		 3132 }
3133
4c476991
JB		 3134 if (!haveinfo)
3135 return -EINVAL;
3b85875a 3136
a1193be8
SW		 3137 if (attrs[NL80211_ATTR_IE]) {
3138 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3139 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3140 }
3141
a1193be8 3142 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3143 bcn->proberesp_ies =
a1193be8 3144 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3145 bcn->proberesp_ies_len =
a1193be8 3146 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3147 }
3148
a1193be8 3149 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3150 bcn->assocresp_ies =
a1193be8 3151 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3152 bcn->assocresp_ies_len =
a1193be8 3153 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3154 }
3155
a1193be8
SW		 3156 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3157 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3158 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3159 }
3160
8860020e
JB		 3161 return 0;
3162}
3163
46c1dd0c
FF		 3164static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3165 struct cfg80211_ap_settings *params)
3166{
3167 struct wireless_dev *wdev;
3168 bool ret = false;
3169
89a54e48 3170 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3171 if (wdev->iftype != NL80211_IFTYPE_AP &&
3172 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3173 continue;
3174
683b6d3b 3175 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3176 continue;
3177
683b6d3b 3178 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3179 ret = true;
3180 break;
3181 }
3182
46c1dd0c
FF		 3183 return ret;
3184}
3185
e39e5b5e
JM		 3186static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3187 enum nl80211_auth_type auth_type,
3188 enum nl80211_commands cmd)
3189{
3190 if (auth_type > NL80211_AUTHTYPE_MAX)
3191 return false;
3192
3193 switch (cmd) {
3194 case NL80211_CMD_AUTHENTICATE:
3195 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3196 auth_type == NL80211_AUTHTYPE_SAE)
3197 return false;
3198 return true;
3199 case NL80211_CMD_CONNECT:
3200 case NL80211_CMD_START_AP:
3201 /* SAE not supported yet */
3202 if (auth_type == NL80211_AUTHTYPE_SAE)
3203 return false;
3204 return true;
3205 default:
3206 return false;
3207 }
3208}
3209
8860020e
JB		 3210static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3211{
3212 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3213 struct net_device *dev = info->user_ptr[1];
3214 struct wireless_dev *wdev = dev->ieee80211_ptr;
3215 struct cfg80211_ap_settings params;
3216 int err;
3217
3218 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3219 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3220 return -EOPNOTSUPP;
3221
3222 if (!rdev->ops->start_ap)
3223 return -EOPNOTSUPP;
3224
3225 if (wdev->beacon_interval)
3226 return -EALREADY;
3227
3228 memset(&params, 0, sizeof(params));
3229
3230 /* these are required for START_AP */
3231 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3232 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3233 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3234 return -EINVAL;
3235
a1193be8 3236 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3237 if (err)
3238 return err;
3239
3240 params.beacon_interval =
3241 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3242 params.dtim_period =
3243 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3244
3245 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3246 if (err)
3247 return err;
3248
3249 /*
3250 * In theory, some of these attributes should be required here
3251 * but since they were not used when the command was originally
3252 * added, keep them optional for old user space programs to let
3253 * them continue to work with drivers that do not need the
3254 * additional information -- drivers must check!
3255 */
3256 if (info->attrs[NL80211_ATTR_SSID]) {
3257 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3258 params.ssid_len =
3259 nla_len(info->attrs[NL80211_ATTR_SSID]);
3260 if (params.ssid_len == 0 ||
3261 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3262 return -EINVAL;
3263 }
3264
3265 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3266 params.hidden_ssid = nla_get_u32(
3267 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3268 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3269 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3270 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3271 return -EINVAL;
3272 }
3273
3274 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3275
3276 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3277 params.auth_type = nla_get_u32(
3278 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3279 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3280 NL80211_CMD_START_AP))
8860020e
JB		 3281 return -EINVAL;
3282 } else
3283 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3284
3285 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3286 NL80211_MAX_NR_CIPHER_SUITES);
3287 if (err)
3288 return err;
3289
1b658f11
VT		 3290 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3291 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3292 return -EOPNOTSUPP;
3293 params.inactivity_timeout = nla_get_u16(
3294 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3295 }
3296
53cabad7
JB		 3297 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3298 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3299 return -EINVAL;
3300 params.p2p_ctwindow =
3301 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3302 if (params.p2p_ctwindow > 127)
3303 return -EINVAL;
3304 if (params.p2p_ctwindow != 0 &&
3305 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3306 return -EINVAL;
3307 }
3308
3309 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3310 u8 tmp;
3311
3312 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3313 return -EINVAL;
3314 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3315 if (tmp > 1)
3316 return -EINVAL;
3317 params.p2p_opp_ps = tmp;
3318 if (params.p2p_opp_ps != 0 &&
3319 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3320 return -EINVAL;
3321 }
3322
aa430da4 3323 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3324 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3325 if (err)
3326 return err;
3327 } else if (wdev->preset_chandef.chan) {
3328 params.chandef = wdev->preset_chandef;
46c1dd0c 3329 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3330 return -EINVAL;
3331
174e0cd2
IP		 3332 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3333 wdev->iftype))
aa430da4
JB		 3334 return -EINVAL;
3335
77765eaf
VT		 3336 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3337 params.acl = parse_acl_data(&rdev->wiphy, info);
3338 if (IS_ERR(params.acl))
3339 return PTR_ERR(params.acl);
3340 }
3341
c56589ed 3342 wdev_lock(wdev);
e35e4d28 3343 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3344 if (!err) {
683b6d3b 3345 wdev->preset_chandef = params.chandef;
8860020e 3346 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3347 wdev->chandef = params.chandef;
06e191e2
AQ		 3348 wdev->ssid_len = params.ssid_len;
3349 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3350 }
c56589ed 3351 wdev_unlock(wdev);
77765eaf
VT		 3352
3353 kfree(params.acl);
3354
56d1893d 3355 return err;
ed1b6cc7
JB		 3356}
3357
8860020e
JB		 3358static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3359{
3360 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3361 struct net_device *dev = info->user_ptr[1];
3362 struct wireless_dev *wdev = dev->ieee80211_ptr;
3363 struct cfg80211_beacon_data params;
3364 int err;
3365
3366 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3367 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3368 return -EOPNOTSUPP;
3369
3370 if (!rdev->ops->change_beacon)
3371 return -EOPNOTSUPP;
3372
3373 if (!wdev->beacon_interval)
3374 return -EINVAL;
3375
a1193be8 3376 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3377 if (err)
3378 return err;
3379
c56589ed
SW		 3380 wdev_lock(wdev);
3381 err = rdev_change_beacon(rdev, dev, &params);
3382 wdev_unlock(wdev);
3383
3384 return err;
8860020e
JB		 3385}
3386
3387static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3388{
4c476991
JB		 3389 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3390 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3391
7c8d5e03 3392 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3393}
3394
5727ef1b
JB		 3395static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3396 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3397 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3398 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3399 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3400 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3401 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3402};
3403
eccb8e8f 3404static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3405 enum nl80211_iftype iftype,
eccb8e8f 3406 struct station_parameters *params)
5727ef1b
JB		 3407{
3408 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3409 struct nlattr *nla;
5727ef1b
JB		 3410 int flag;
3411
eccb8e8f
JB		 3412 /*
3413 * Try parsing the new attribute first so userspace
3414 * can specify both for older kernels.
3415 */
3416 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3417 if (nla) {
3418 struct nl80211_sta_flag_update *sta_flags;
3419
3420 sta_flags = nla_data(nla);
3421 params->sta_flags_mask = sta_flags->mask;
3422 params->sta_flags_set = sta_flags->set;
77ee7c89 3423 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3424 if ((params->sta_flags_mask |
3425 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3426 return -EINVAL;
3427 return 0;
3428 }
3429
3430 /* if present, parse the old attribute */
5727ef1b 3431
eccb8e8f 3432 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3433 if (!nla)
3434 return 0;
3435
3436 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3437 nla, sta_flags_policy))
3438 return -EINVAL;
3439
bdd3ae3d
JB		 3440 /*
3441 * Only allow certain flags for interface types so that
3442 * other attributes are silently ignored. Remember that
3443 * this is backward compatibility code with old userspace
3444 * and shouldn't be hit in other cases anyway.
3445 */
3446 switch (iftype) {
3447 case NL80211_IFTYPE_AP:
3448 case NL80211_IFTYPE_AP_VLAN:
3449 case NL80211_IFTYPE_P2P_GO:
3450 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3451 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3452 BIT(NL80211_STA_FLAG_WME) |
3453 BIT(NL80211_STA_FLAG_MFP);
3454 break;
3455 case NL80211_IFTYPE_P2P_CLIENT:
3456 case NL80211_IFTYPE_STATION:
3457 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3458 BIT(NL80211_STA_FLAG_TDLS_PEER);
3459 break;
3460 case NL80211_IFTYPE_MESH_POINT:
3461 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3462 BIT(NL80211_STA_FLAG_MFP) |
3463 BIT(NL80211_STA_FLAG_AUTHORIZED);
3464 default:
3465 return -EINVAL;
3466 }
5727ef1b 3467
3383b5a6
JB		 3468 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3469 if (flags[flag]) {
eccb8e8f 3470 params->sta_flags_set |= (1<<flag);
5727ef1b 3471
3383b5a6
JB		 3472 /* no longer support new API additions in old API */
3473 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3474 return -EINVAL;
3475 }
3476 }
3477
5727ef1b
JB		 3478 return 0;
3479}
3480
c8dcfd8a
FF		 3481static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3482 int attr)
3483{
3484 struct nlattr *rate;
8eb41c8d
VK		 3485 u32 bitrate;
3486 u16 bitrate_compat;
c8dcfd8a
FF		 3487
3488 rate = nla_nest_start(msg, attr);
3489 if (!rate)
db9c64cf 3490 return false;
c8dcfd8a
FF		 3491
3492 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3493 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3494 /* report 16-bit bitrate only if we can */
3495 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3496 if (bitrate > 0 &&
3497 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3498 return false;
3499 if (bitrate_compat > 0 &&
3500 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3501 return false;
3502
3503 if (info->flags & RATE_INFO_FLAGS_MCS) {
3504 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3505 return false;
3506 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3507 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3508 return false;
3509 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3510 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3511 return false;
3512 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3513 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3514 return false;
3515 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3516 return false;
3517 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3518 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3519 return false;
3520 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3521 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3522 return false;
3523 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3524 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3525 return false;
3526 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3527 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3528 return false;
3529 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3530 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3531 return false;
3532 }
c8dcfd8a
FF		 3533
3534 nla_nest_end(msg, rate);
3535 return true;
c8dcfd8a
FF		 3536}
3537
119363c7
FF		 3538static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3539 int id)
3540{
3541 void *attr;
3542 int i = 0;
3543
3544 if (!mask)
3545 return true;
3546
3547 attr = nla_nest_start(msg, id);
3548 if (!attr)
3549 return false;
3550
3551 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3552 if (!(mask & BIT(i)))
3553 continue;
3554
3555 if (nla_put_u8(msg, i, signal[i]))
3556 return false;
3557 }
3558
3559 nla_nest_end(msg, attr);
3560
3561 return true;
3562}
3563
15e47304 3564static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3565 int flags,
3566 struct cfg80211_registered_device *rdev,
3567 struct net_device *dev,
98b62183 3568 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3569{
3570 void *hdr;
f4263c98 3571 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3572
15e47304 3573 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3574 if (!hdr)
3575 return -1;
3576
9360ffd1
DM		 3577 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3578 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3579 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3580 goto nla_put_failure;
f5ea9120 3581
2ec600d6
LCC		 3582 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3583 if (!sinfoattr)
fd5b74dc 3584 goto nla_put_failure;
9360ffd1
DM		 3585 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3586 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3587 sinfo->connected_time))
3588 goto nla_put_failure;
3589 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3590 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3591 sinfo->inactive_time))
3592 goto nla_put_failure;
42745e03
VK		 3593 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3594 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3595 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3596 (u32)sinfo->rx_bytes))
9360ffd1 3597 goto nla_put_failure;
42745e03 3598 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3599 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3600 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3601 (u32)sinfo->tx_bytes))
3602 goto nla_put_failure;
3603 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3604 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3605 sinfo->rx_bytes))
3606 goto nla_put_failure;
3607 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3608 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3609 sinfo->tx_bytes))
3610 goto nla_put_failure;
3611 if ((sinfo->filled & STATION_INFO_LLID) &&
3612 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3613 goto nla_put_failure;
3614 if ((sinfo->filled & STATION_INFO_PLID) &&
3615 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3616 goto nla_put_failure;
3617 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3618 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3619 sinfo->plink_state))
3620 goto nla_put_failure;
66266b3a
JL		 3621 switch (rdev->wiphy.signal_type) {
3622 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3623 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3624 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3625 sinfo->signal))
3626 goto nla_put_failure;
3627 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3628 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3629 sinfo->signal_avg))
3630 goto nla_put_failure;
66266b3a
JL		 3631 break;
3632 default:
3633 break;
3634 }
119363c7
FF		 3635 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3636 if (!nl80211_put_signal(msg, sinfo->chains,
3637 sinfo->chain_signal,
3638 NL80211_STA_INFO_CHAIN_SIGNAL))
3639 goto nla_put_failure;
3640 }
3641 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3642 if (!nl80211_put_signal(msg, sinfo->chains,
3643 sinfo->chain_signal_avg,
3644 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3645 goto nla_put_failure;
3646 }
420e7fab 3647 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3648 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3649 NL80211_STA_INFO_TX_BITRATE))
3650 goto nla_put_failure;
3651 }
3652 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3653 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3654 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3655 goto nla_put_failure;
420e7fab 3656 }
9360ffd1
DM		 3657 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3658 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3659 sinfo->rx_packets))
3660 goto nla_put_failure;
3661 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3662 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3663 sinfo->tx_packets))
3664 goto nla_put_failure;
3665 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3666 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3667 sinfo->tx_retries))
3668 goto nla_put_failure;
3669 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3670 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3671 sinfo->tx_failed))
3672 goto nla_put_failure;
867d849f
AQ		 3673 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3674 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3675 sinfo->expected_throughput))
3676 goto nla_put_failure;
9360ffd1
DM		 3677 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3678 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3679 sinfo->beacon_loss_count))
3680 goto nla_put_failure;
3b1c5a53
MP		 3681 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3682 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3683 sinfo->local_pm))
3684 goto nla_put_failure;
3685 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3686 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3687 sinfo->peer_pm))
3688 goto nla_put_failure;
3689 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3690 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3691 sinfo->nonpeer_pm))
3692 goto nla_put_failure;
f4263c98
PS		 3693 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3694 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3695 if (!bss_param)
3696 goto nla_put_failure;
3697
9360ffd1
DM		 3698 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3699 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3700 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3701 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3702 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3703 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3704 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3705 sinfo->bss_param.dtim_period) ||
3706 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3707 sinfo->bss_param.beacon_interval))
3708 goto nla_put_failure;
f4263c98
PS		 3709
3710 nla_nest_end(msg, bss_param);
3711 }
9360ffd1
DM		 3712 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3713 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3714 sizeof(struct nl80211_sta_flag_update),
3715 &sinfo->sta_flags))
3716 goto nla_put_failure;
7eab0f64
JL		 3717 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3718 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3719 sinfo->t_offset))
3720 goto nla_put_failure;
2ec600d6 3721 nla_nest_end(msg, sinfoattr);
fd5b74dc 3722
9360ffd1
DM		 3723 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3724 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3725 sinfo->assoc_req_ies))
3726 goto nla_put_failure;
50d3dfb7 3727
fd5b74dc
JB		 3728 return genlmsg_end(msg, hdr);
3729
3730 nla_put_failure:
bc3ed28c
TG		 3731 genlmsg_cancel(msg, hdr);
3732 return -EMSGSIZE;
fd5b74dc
JB		 3733}
3734
2ec600d6 3735static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3736 struct netlink_callback *cb)
2ec600d6 3737{
2ec600d6 3738 struct station_info sinfo;
1b8ec87a 3739 struct cfg80211_registered_device *rdev;
97990a06 3740 struct wireless_dev *wdev;
2ec600d6 3741 u8 mac_addr[ETH_ALEN];
97990a06 3742 int sta_idx = cb->args[2];
2ec600d6 3743 int err;
2ec600d6 3744
1b8ec87a 3745 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3746 if (err)
3747 return err;
bba95fef 3748
97990a06
JB		 3749 if (!wdev->netdev) {
3750 err = -EINVAL;
3751 goto out_err;
3752 }
3753
1b8ec87a 3754 if (!rdev->ops->dump_station) {
eec60b03 3755 err = -EOPNOTSUPP;
bba95fef
JB		 3756 goto out_err;
3757 }
3758
bba95fef 3759 while (1) {
f612cedf 3760 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3761 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3762 mac_addr, &sinfo);
bba95fef
JB		 3763 if (err == -ENOENT)
3764 break;
3765 if (err)
3b85875a 3766 goto out_err;
bba95fef
JB		 3767
3768 if (nl80211_send_station(skb,
15e47304 3769 NETLINK_CB(cb->skb).portid,
bba95fef 3770 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3771 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3772 &sinfo) < 0)
3773 goto out;
3774
3775 sta_idx++;
3776 }
3777
3778
3779 out:
97990a06 3780 cb->args[2] = sta_idx;
bba95fef 3781 err = skb->len;
bba95fef 3782 out_err:
1b8ec87a 3783 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3784
3785 return err;
2ec600d6 3786}
fd5b74dc 3787
5727ef1b
JB		 3788static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3789{
4c476991
JB		 3790 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3791 struct net_device *dev = info->user_ptr[1];
2ec600d6 3792 struct station_info sinfo;
fd5b74dc
JB		 3793 struct sk_buff *msg;
3794 u8 *mac_addr = NULL;
4c476991 3795 int err;
fd5b74dc 3796
2ec600d6 3797 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3798
3799 if (!info->attrs[NL80211_ATTR_MAC])
3800 return -EINVAL;
3801
3802 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3803
4c476991
JB		 3804 if (!rdev->ops->get_station)
3805 return -EOPNOTSUPP;
3b85875a 3806
e35e4d28 3807 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3808 if (err)
4c476991 3809 return err;
2ec600d6 3810
fd2120ca 3811 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3812 if (!msg)
4c476991 3813 return -ENOMEM;
fd5b74dc 3814
15e47304 3815 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3816 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3817 nlmsg_free(msg);
3818 return -ENOBUFS;
3819 }
3b85875a 3820
4c476991 3821 return genlmsg_reply(msg, info);
5727ef1b
JB		 3822}
3823
77ee7c89
JB		 3824int cfg80211_check_station_change(struct wiphy *wiphy,
3825 struct station_parameters *params,
3826 enum cfg80211_station_type statype)
3827{
3828 if (params->listen_interval != -1)
3829 return -EINVAL;
c72e1140
AN		 3830 if (params->aid &&
3831 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3832 return -EINVAL;
3833
3834 /* When you run into this, adjust the code below for the new flag */
3835 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3836
3837 switch (statype) {
eef941e6
TP		 3838 case CFG80211_STA_MESH_PEER_KERNEL:
3839 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3840 /*
3841 * No ignoring the TDLS flag here -- the userspace mesh
3842 * code doesn't have the bug of including TDLS in the
3843 * mask everywhere.
3844 */
3845 if (params->sta_flags_mask &
3846 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3847 BIT(NL80211_STA_FLAG_MFP) |
3848 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3849 return -EINVAL;
3850 break;
3851 case CFG80211_STA_TDLS_PEER_SETUP:
3852 case CFG80211_STA_TDLS_PEER_ACTIVE:
3853 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3854 return -EINVAL;
3855 /* ignore since it can't change */
3856 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3857 break;
3858 default:
3859 /* disallow mesh-specific things */
3860 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3861 return -EINVAL;
3862 if (params->local_pm)
3863 return -EINVAL;
3864 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3865 return -EINVAL;
3866 }
3867
3868 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3869 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3870 /* TDLS can't be set, ... */
3871 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3872 return -EINVAL;
3873 /*
3874 * ... but don't bother the driver with it. This works around
3875 * a hostapd/wpa_supplicant issue -- it always includes the
3876 * TLDS_PEER flag in the mask even for AP mode.
3877 */
3878 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3879 }
3880
3881 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3882 /* reject other things that can't change */
3883 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3884 return -EINVAL;
3885 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3886 return -EINVAL;
3887 if (params->supported_rates)
3888 return -EINVAL;
3889 if (params->ext_capab || params->ht_capa || params->vht_capa)
3890 return -EINVAL;
3891 }
3892
3893 if (statype != CFG80211_STA_AP_CLIENT) {
3894 if (params->vlan)
3895 return -EINVAL;
3896 }
3897
3898 switch (statype) {
3899 case CFG80211_STA_AP_MLME_CLIENT:
3900 /* Use this only for authorizing/unauthorizing a station */
3901 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3902 return -EOPNOTSUPP;
3903 break;
3904 case CFG80211_STA_AP_CLIENT:
3905 /* accept only the listed bits */
3906 if (params->sta_flags_mask &
3907 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3908 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3909 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3910 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3911 BIT(NL80211_STA_FLAG_WME) |
3912 BIT(NL80211_STA_FLAG_MFP)))
3913 return -EINVAL;
3914
3915 /* but authenticated/associated only if driver handles it */
3916 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3917 params->sta_flags_mask &
3918 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3919 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3920 return -EINVAL;
3921 break;
3922 case CFG80211_STA_IBSS:
3923 case CFG80211_STA_AP_STA:
3924 /* reject any changes other than AUTHORIZED */
3925 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3926 return -EINVAL;
3927 break;
3928 case CFG80211_STA_TDLS_PEER_SETUP:
3929 /* reject any changes other than AUTHORIZED or WME */
3930 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3931 BIT(NL80211_STA_FLAG_WME)))
3932 return -EINVAL;
3933 /* force (at least) rates when authorizing */
3934 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3935 !params->supported_rates)
3936 return -EINVAL;
3937 break;
3938 case CFG80211_STA_TDLS_PEER_ACTIVE:
3939 /* reject any changes */
3940 return -EINVAL;
eef941e6 3941 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3942 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3943 return -EINVAL;
3944 break;
eef941e6 3945 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3946 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3947 return -EINVAL;
3948 break;
3949 }
3950
3951 return 0;
3952}
3953EXPORT_SYMBOL(cfg80211_check_station_change);
3954
5727ef1b 3955/*
c258d2de 3956 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3957 */
80b99899
JB		 3958static struct net_device *get_vlan(struct genl_info *info,
3959 struct cfg80211_registered_device *rdev)
5727ef1b 3960{
463d0183 3961 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3962 struct net_device *v;
3963 int ret;
3964
3965 if (!vlanattr)
3966 return NULL;
3967
3968 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3969 if (!v)
3970 return ERR_PTR(-ENODEV);
3971
3972 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3973 ret = -EINVAL;
3974 goto error;
5727ef1b 3975 }
80b99899 3976
77ee7c89
JB		 3977 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3978 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3979 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3980 ret = -EINVAL;
3981 goto error;
3982 }
3983
80b99899
JB		 3984 if (!netif_running(v)) {
3985 ret = -ENETDOWN;
3986 goto error;
3987 }
3988
3989 return v;
3990 error:
3991 dev_put(v);
3992 return ERR_PTR(ret);
5727ef1b
JB		 3993}
3994
94e860f1
JB		 3995static const struct nla_policy
3996nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 3997 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3998 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3999};
4000
ff276691
JB		 4001static int nl80211_parse_sta_wme(struct genl_info *info,
4002 struct station_parameters *params)
df881293 4003{
df881293
JM		 4004 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4005 struct nlattr *nla;
4006 int err;
4007
df881293
JM		 4008 /* parse WME attributes if present */
4009 if (!info->attrs[NL80211_ATTR_STA_WME])
4010 return 0;
4011
4012 nla = info->attrs[NL80211_ATTR_STA_WME];
4013 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4014 nl80211_sta_wme_policy);
4015 if (err)
4016 return err;
4017
4018 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4019 params->uapsd_queues = nla_get_u8(
4020 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4021 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4022 return -EINVAL;
4023
4024 if (tb[NL80211_STA_WME_MAX_SP])
4025 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4026
4027 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4028 return -EINVAL;
4029
4030 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4031
4032 return 0;
4033}
4034
c01fc9ad
SD		 4035static int nl80211_parse_sta_channel_info(struct genl_info *info,
4036 struct station_parameters *params)
4037{
4038 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4039 params->supported_channels =
4040 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4041 params->supported_channels_len =
4042 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4043 /*
4044 * Need to include at least one (first channel, number of
4045 * channels) tuple for each subband, and must have proper
4046 * tuples for the rest of the data as well.
4047 */
4048 if (params->supported_channels_len < 2)
4049 return -EINVAL;
4050 if (params->supported_channels_len % 2)
4051 return -EINVAL;
4052 }
4053
4054 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4055 params->supported_oper_classes =
4056 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4057 params->supported_oper_classes_len =
4058 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4059 /*
4060 * The value of the Length field of the Supported Operating
4061 * Classes element is between 2 and 253.
4062 */
4063 if (params->supported_oper_classes_len < 2 ||
4064 params->supported_oper_classes_len > 253)
4065 return -EINVAL;
4066 }
4067 return 0;
4068}
4069
ff276691
JB		 4070static int nl80211_set_station_tdls(struct genl_info *info,
4071 struct station_parameters *params)
4072{
c01fc9ad 4073 int err;
ff276691 4074 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4075 if (info->attrs[NL80211_ATTR_PEER_AID])
4076 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4077 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4078 params->ht_capa =
4079 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4080 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4081 params->vht_capa =
4082 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4083
c01fc9ad
SD		 4084 err = nl80211_parse_sta_channel_info(info, params);
4085 if (err)
4086 return err;
4087
ff276691
JB		 4088 return nl80211_parse_sta_wme(info, params);
4089}
4090
5727ef1b
JB		 4091static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4092{
4c476991 4093 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4094 struct net_device *dev = info->user_ptr[1];
5727ef1b 4095 struct station_parameters params;
77ee7c89
JB		 4096 u8 *mac_addr;
4097 int err;
5727ef1b
JB		 4098
4099 memset(&params, 0, sizeof(params));
4100
4101 params.listen_interval = -1;
4102
77ee7c89
JB		 4103 if (!rdev->ops->change_station)
4104 return -EOPNOTSUPP;
4105
5727ef1b
JB		 4106 if (info->attrs[NL80211_ATTR_STA_AID])
4107 return -EINVAL;
4108
4109 if (!info->attrs[NL80211_ATTR_MAC])
4110 return -EINVAL;
4111
4112 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4113
4114 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4115 params.supported_rates =
4116 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4117 params.supported_rates_len =
4118 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4119 }
4120
9d62a986
JM		 4121 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4122 params.capability =
4123 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4124 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4125 }
4126
4127 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4128 params.ext_capab =
4129 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4130 params.ext_capab_len =
4131 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4132 }
4133
df881293 4134 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4135 return -EINVAL;
36aedc90 4136
bdd3ae3d 4137 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4138 return -EINVAL;
4139
f8bacc21 4140 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4141 params.plink_action =
f8bacc21
JB		 4142 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4143 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4144 return -EINVAL;
4145 }
2ec600d6 4146
f8bacc21 4147 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4148 params.plink_state =
f8bacc21
JB		 4149 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4150 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4151 return -EINVAL;
4152 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4153 }
9c3990aa 4154
3b1c5a53
MP		 4155 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4156 enum nl80211_mesh_power_mode pm = nla_get_u32(
4157 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4158
4159 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4160 pm > NL80211_MESH_POWER_MAX)
4161 return -EINVAL;
4162
4163 params.local_pm = pm;
4164 }
4165
77ee7c89
JB		 4166 /* Include parameters for TDLS peer (will check later) */
4167 err = nl80211_set_station_tdls(info, &params);
4168 if (err)
4169 return err;
4170
4171 params.vlan = get_vlan(info, rdev);
4172 if (IS_ERR(params.vlan))
4173 return PTR_ERR(params.vlan);
4174
a97f4424
JB		 4175 switch (dev->ieee80211_ptr->iftype) {
4176 case NL80211_IFTYPE_AP:
4177 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4178 case NL80211_IFTYPE_P2P_GO:
074ac8df 4179 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4180 case NL80211_IFTYPE_STATION:
267335d6 4181 case NL80211_IFTYPE_ADHOC:
a97f4424 4182 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4183 break;
4184 default:
77ee7c89
JB		 4185 err = -EOPNOTSUPP;
4186 goto out_put_vlan;
034d655e
JB		 4187 }
4188
77ee7c89 4189 /* driver will call cfg80211_check_station_change() */
e35e4d28 4190 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4191
77ee7c89 4192 out_put_vlan:
5727ef1b
JB		 4193 if (params.vlan)
4194 dev_put(params.vlan);
3b85875a 4195
5727ef1b
JB		 4196 return err;
4197}
4198
4199static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4200{
4c476991 4201 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4202 int err;
4c476991 4203 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4204 struct station_parameters params;
4205 u8 *mac_addr = NULL;
4206
4207 memset(&params, 0, sizeof(params));
4208
984c311b
JB		 4209 if (!rdev->ops->add_station)
4210 return -EOPNOTSUPP;
4211
5727ef1b
JB		 4212 if (!info->attrs[NL80211_ATTR_MAC])
4213 return -EINVAL;
4214
5727ef1b
JB		 4215 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4216 return -EINVAL;
4217
4218 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4219 return -EINVAL;
4220
5e4b6f56
JM		 4221 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4222 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4223 return -EINVAL;
4224
5727ef1b
JB		 4225 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4226 params.supported_rates =
4227 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4228 params.supported_rates_len =
4229 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4230 params.listen_interval =
4231 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4232
3d124ea2 4233 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4234 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4235 else
4236 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4237 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4238 return -EINVAL;
51b50fbe 4239
9d62a986
JM		 4240 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4241 params.capability =
4242 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4243 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4244 }
4245
4246 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4247 params.ext_capab =
4248 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4249 params.ext_capab_len =
4250 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4251 }
4252
36aedc90
JM		 4253 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4254 params.ht_capa =
4255 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4256
f461be3e
MP		 4257 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4258 params.vht_capa =
4259 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4260
60f4a7b1
MK		 4261 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4262 params.opmode_notif_used = true;
4263 params.opmode_notif =
4264 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4265 }
4266
f8bacc21 4267 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4268 params.plink_action =
f8bacc21
JB		 4269 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4270 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4271 return -EINVAL;
4272 }
96b78dff 4273
c01fc9ad
SD		 4274 err = nl80211_parse_sta_channel_info(info, &params);
4275 if (err)
4276 return err;
4277
ff276691
JB		 4278 err = nl80211_parse_sta_wme(info, &params);
4279 if (err)
4280 return err;
bdd90d5e 4281
bdd3ae3d 4282 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4283 return -EINVAL;
4284
77ee7c89
JB		 4285 /* When you run into this, adjust the code below for the new flag */
4286 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4287
bdd90d5e
JB		 4288 switch (dev->ieee80211_ptr->iftype) {
4289 case NL80211_IFTYPE_AP:
4290 case NL80211_IFTYPE_AP_VLAN:
4291 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4292 /* ignore WME attributes if iface/sta is not capable */
4293 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4294 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4295 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4296
bdd90d5e 4297 /* TDLS peers cannot be added */
3d124ea2
JM		 4298 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4299 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4300 return -EINVAL;
bdd90d5e
JB		 4301 /* but don't bother the driver with it */
4302 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4303
d582cffb
JB		 4304 /* allow authenticated/associated only if driver handles it */
4305 if (!(rdev->wiphy.features &
4306 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4307 params.sta_flags_mask &
4308 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4309 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4310 return -EINVAL;
4311
bdd90d5e
JB		 4312 /* must be last in here for error handling */
4313 params.vlan = get_vlan(info, rdev);
4314 if (IS_ERR(params.vlan))
4315 return PTR_ERR(params.vlan);
4316 break;
4317 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4318 /* ignore uAPSD data */
4319 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4320
d582cffb
JB		 4321 /* associated is disallowed */
4322 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4323 return -EINVAL;
bdd90d5e 4324 /* TDLS peers cannot be added */
3d124ea2
JM		 4325 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4326 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4327 return -EINVAL;
4328 break;
4329 case NL80211_IFTYPE_STATION:
93d08f0b 4330 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4331 /* ignore uAPSD data */
4332 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4333
77ee7c89
JB		 4334 /* these are disallowed */
4335 if (params.sta_flags_mask &
4336 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4337 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4338 return -EINVAL;
bdd90d5e
JB		 4339 /* Only TDLS peers can be added */
4340 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4341 return -EINVAL;
4342 /* Can only add if TDLS ... */
4343 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4344 return -EOPNOTSUPP;
4345 /* ... with external setup is supported */
4346 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4347 return -EOPNOTSUPP;
77ee7c89
JB		 4348 /*
4349 * Older wpa_supplicant versions always mark the TDLS peer
4350 * as authorized, but it shouldn't yet be.
4351 */
4352 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4353 break;
4354 default:
4355 return -EOPNOTSUPP;
c75786c9
EP		 4356 }
4357
bdd90d5e 4358 /* be aware of params.vlan when changing code here */
5727ef1b 4359
e35e4d28 4360 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4361
5727ef1b
JB		 4362 if (params.vlan)
4363 dev_put(params.vlan);
5727ef1b
JB		 4364 return err;
4365}
4366
4367static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4368{
4c476991
JB		 4369 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4370 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4371 u8 *mac_addr = NULL;
4372
4373 if (info->attrs[NL80211_ATTR_MAC])
4374 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4375
e80cf853 4376 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4377 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4378 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4379 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4380 return -EINVAL;
5727ef1b 4381
4c476991
JB		 4382 if (!rdev->ops->del_station)
4383 return -EOPNOTSUPP;
3b85875a 4384
e35e4d28 4385 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4386}
4387
15e47304 4388static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4389 int flags, struct net_device *dev,
4390 u8 *dst, u8 *next_hop,
4391 struct mpath_info *pinfo)
4392{
4393 void *hdr;
4394 struct nlattr *pinfoattr;
4395
15e47304 4396 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4397 if (!hdr)
4398 return -1;
4399
9360ffd1
DM		 4400 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4401 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4402 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4403 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4404 goto nla_put_failure;
f5ea9120 4405
2ec600d6
LCC		 4406 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4407 if (!pinfoattr)
4408 goto nla_put_failure;
9360ffd1
DM		 4409 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4410 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4411 pinfo->frame_qlen))
4412 goto nla_put_failure;
4413 if (((pinfo->filled & MPATH_INFO_SN) &&
4414 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4415 ((pinfo->filled & MPATH_INFO_METRIC) &&
4416 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4417 pinfo->metric)) ||
4418 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4419 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4420 pinfo->exptime)) ||
4421 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4422 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4423 pinfo->flags)) ||
4424 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4425 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4426 pinfo->discovery_timeout)) ||
4427 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4428 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4429 pinfo->discovery_retries)))
4430 goto nla_put_failure;
2ec600d6
LCC		 4431
4432 nla_nest_end(msg, pinfoattr);
4433
4434 return genlmsg_end(msg, hdr);
4435
4436 nla_put_failure:
bc3ed28c
TG		 4437 genlmsg_cancel(msg, hdr);
4438 return -EMSGSIZE;
2ec600d6
LCC		 4439}
4440
4441static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4442 struct netlink_callback *cb)
2ec600d6 4443{
2ec600d6 4444 struct mpath_info pinfo;
1b8ec87a 4445 struct cfg80211_registered_device *rdev;
97990a06 4446 struct wireless_dev *wdev;
2ec600d6
LCC		 4447 u8 dst[ETH_ALEN];
4448 u8 next_hop[ETH_ALEN];
97990a06 4449 int path_idx = cb->args[2];
2ec600d6 4450 int err;
2ec600d6 4451
1b8ec87a 4452 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4453 if (err)
4454 return err;
bba95fef 4455
1b8ec87a 4456 if (!rdev->ops->dump_mpath) {
eec60b03 4457 err = -EOPNOTSUPP;
bba95fef
JB		 4458 goto out_err;
4459 }
4460
97990a06 4461 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4462 err = -EOPNOTSUPP;
0448b5fc 4463 goto out_err;
eec60b03
JM		 4464 }
4465
bba95fef 4466 while (1) {
1b8ec87a 4467 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4468 next_hop, &pinfo);
bba95fef 4469 if (err == -ENOENT)
2ec600d6 4470 break;
bba95fef 4471 if (err)
3b85875a 4472 goto out_err;
2ec600d6 4473
15e47304 4474 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4475 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4476 wdev->netdev, dst, next_hop,
bba95fef
JB		 4477 &pinfo) < 0)
4478 goto out;
2ec600d6 4479
bba95fef 4480 path_idx++;
2ec600d6 4481 }
2ec600d6 4482
2ec600d6 4483
bba95fef 4484 out:
97990a06 4485 cb->args[2] = path_idx;
bba95fef 4486 err = skb->len;
bba95fef 4487 out_err:
1b8ec87a 4488 nl80211_finish_wdev_dump(rdev);
bba95fef 4489 return err;
2ec600d6
LCC		 4490}
4491
4492static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4493{
4c476991 4494 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4495 int err;
4c476991 4496 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4497 struct mpath_info pinfo;
4498 struct sk_buff *msg;
4499 u8 *dst = NULL;
4500 u8 next_hop[ETH_ALEN];
4501
4502 memset(&pinfo, 0, sizeof(pinfo));
4503
4504 if (!info->attrs[NL80211_ATTR_MAC])
4505 return -EINVAL;
4506
4507 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4508
4c476991
JB		 4509 if (!rdev->ops->get_mpath)
4510 return -EOPNOTSUPP;
2ec600d6 4511
4c476991
JB		 4512 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4513 return -EOPNOTSUPP;
eec60b03 4514
e35e4d28 4515 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4516 if (err)
4c476991 4517 return err;
2ec600d6 4518
fd2120ca 4519 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4520 if (!msg)
4c476991 4521 return -ENOMEM;
2ec600d6 4522
15e47304 4523 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4524 dev, dst, next_hop, &pinfo) < 0) {
4525 nlmsg_free(msg);
4526 return -ENOBUFS;
4527 }
3b85875a 4528
4c476991 4529 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4530}
4531
4532static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4533{
4c476991
JB		 4534 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4535 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4536 u8 *dst = NULL;
4537 u8 *next_hop = NULL;
4538
4539 if (!info->attrs[NL80211_ATTR_MAC])
4540 return -EINVAL;
4541
4542 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4543 return -EINVAL;
4544
4545 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4546 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4547
4c476991
JB		 4548 if (!rdev->ops->change_mpath)
4549 return -EOPNOTSUPP;
35a8efe1 4550
4c476991
JB		 4551 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4552 return -EOPNOTSUPP;
2ec600d6 4553
e35e4d28 4554 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4555}
4c476991 4556
2ec600d6
LCC		 4557static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4558{
4c476991
JB		 4559 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4560 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4561 u8 *dst = NULL;
4562 u8 *next_hop = NULL;
4563
4564 if (!info->attrs[NL80211_ATTR_MAC])
4565 return -EINVAL;
4566
4567 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4568 return -EINVAL;
4569
4570 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4571 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4572
4c476991
JB		 4573 if (!rdev->ops->add_mpath)
4574 return -EOPNOTSUPP;
35a8efe1 4575
4c476991
JB		 4576 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4577 return -EOPNOTSUPP;
2ec600d6 4578
e35e4d28 4579 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4580}
4581
4582static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4583{
4c476991
JB		 4584 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4585 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4586 u8 *dst = NULL;
4587
4588 if (info->attrs[NL80211_ATTR_MAC])
4589 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4590
4c476991
JB		 4591 if (!rdev->ops->del_mpath)
4592 return -EOPNOTSUPP;
3b85875a 4593
e35e4d28 4594 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4595}
4596
9f1ba906
JM		 4597static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4598{
4c476991
JB		 4599 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4600 struct net_device *dev = info->user_ptr[1];
c56589ed 4601 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4602 struct bss_parameters params;
c56589ed 4603 int err;
9f1ba906
JM		 4604
4605 memset(&params, 0, sizeof(params));
4606 /* default to not changing parameters */
4607 params.use_cts_prot = -1;
4608 params.use_short_preamble = -1;
4609 params.use_short_slot_time = -1;
fd8aaaf3 4610 params.ap_isolate = -1;
50b12f59 4611 params.ht_opmode = -1;
53cabad7
JB		 4612 params.p2p_ctwindow = -1;
4613 params.p2p_opp_ps = -1;
9f1ba906
JM		 4614
4615 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4616 params.use_cts_prot =
4617 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4618 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4619 params.use_short_preamble =
4620 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4621 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4622 params.use_short_slot_time =
4623 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4624 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4625 params.basic_rates =
4626 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4627 params.basic_rates_len =
4628 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4629 }
fd8aaaf3
FF		 4630 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4631 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4632 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4633 params.ht_opmode =
4634 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4635
53cabad7
JB		 4636 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4637 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4638 return -EINVAL;
4639 params.p2p_ctwindow =
4640 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4641 if (params.p2p_ctwindow < 0)
4642 return -EINVAL;
4643 if (params.p2p_ctwindow != 0 &&
4644 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4645 return -EINVAL;
4646 }
4647
4648 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4649 u8 tmp;
4650
4651 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4652 return -EINVAL;
4653 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4654 if (tmp > 1)
4655 return -EINVAL;
4656 params.p2p_opp_ps = tmp;
4657 if (params.p2p_opp_ps &&
4658 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4659 return -EINVAL;
4660 }
4661
4c476991
JB		 4662 if (!rdev->ops->change_bss)
4663 return -EOPNOTSUPP;
9f1ba906 4664
074ac8df 4665 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4666 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4667 return -EOPNOTSUPP;
3b85875a 4668
c56589ed
SW		 4669 wdev_lock(wdev);
4670 err = rdev_change_bss(rdev, dev, &params);
4671 wdev_unlock(wdev);
4672
4673 return err;
9f1ba906
JM		 4674}
4675
b54452b0 4676static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4677 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4678 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4679 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4680 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4681 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4682 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4683 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4684};
4685
4686static int parse_reg_rule(struct nlattr *tb[],
4687 struct ieee80211_reg_rule *reg_rule)
4688{
4689 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4690 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4691
4692 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4693 return -EINVAL;
4694 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4695 return -EINVAL;
4696 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4697 return -EINVAL;
b0dfd2ea
JD		 4698 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4699 return -EINVAL;
b2e1b302
LR		 4700 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4701 return -EINVAL;
4702
4703 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4704
4705 freq_range->start_freq_khz =
4706 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4707 freq_range->end_freq_khz =
4708 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4709 freq_range->max_bandwidth_khz =
4710 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4711
4712 power_rule->max_eirp =
4713 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4714
4715 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4716 power_rule->max_antenna_gain =
4717 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4718
089027e5
JD		 4719 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4720 reg_rule->dfs_cac_ms =
4721 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4722
b2e1b302
LR		 4723 return 0;
4724}
4725
4726static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4727{
b2e1b302 4728 char *data = NULL;
57b5ce07 4729 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4730
80778f18
LR		 4731 /*
4732 * You should only get this when cfg80211 hasn't yet initialized
4733 * completely when built-in to the kernel right between the time
4734 * window between nl80211_init() and regulatory_init(), if that is
4735 * even possible.
4736 */
458f4f9e 4737 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4738 return -EINPROGRESS;
80778f18 4739
57b5ce07
LR		 4740 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4741 user_reg_hint_type =
4742 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4743 else
4744 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4745
4746 switch (user_reg_hint_type) {
4747 case NL80211_USER_REG_HINT_USER:
4748 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4749 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4750 return -EINVAL;
4751
4752 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4753 return regulatory_hint_user(data, user_reg_hint_type);
4754 case NL80211_USER_REG_HINT_INDOOR:
4755 return regulatory_hint_indoor_user();
57b5ce07
LR		 4756 default:
4757 return -EINVAL;
4758 }
b2e1b302
LR		 4759}
4760
24bdd9f4 4761static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4762 struct genl_info *info)
93da9cc1 4763{
4c476991 4764 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4765 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4766 struct wireless_dev *wdev = dev->ieee80211_ptr;
4767 struct mesh_config cur_params;
4768 int err = 0;
93da9cc1 4769 void *hdr;
4770 struct nlattr *pinfoattr;
4771 struct sk_buff *msg;
4772
29cbe68c
JB		 4773 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4774 return -EOPNOTSUPP;
4775
24bdd9f4 4776 if (!rdev->ops->get_mesh_config)
4c476991 4777 return -EOPNOTSUPP;
f3f92586 4778
29cbe68c
JB		 4779 wdev_lock(wdev);
4780 /* If not connected, get default parameters */
4781 if (!wdev->mesh_id_len)
4782 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4783 else
e35e4d28 4784 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4785 wdev_unlock(wdev);
4786
93da9cc1 4787 if (err)
4c476991 4788 return err;
93da9cc1 4789
4790 /* Draw up a netlink message to send back */
fd2120ca 4791 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4792 if (!msg)
4793 return -ENOMEM;
15e47304 4794 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4795 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4796 if (!hdr)
efe1cf0c 4797 goto out;
24bdd9f4 4798 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4799 if (!pinfoattr)
4800 goto nla_put_failure;
9360ffd1
DM		 4801 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4802 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4803 cur_params.dot11MeshRetryTimeout) ||
4804 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4805 cur_params.dot11MeshConfirmTimeout) ||
4806 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4807 cur_params.dot11MeshHoldingTimeout) ||
4808 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4809 cur_params.dot11MeshMaxPeerLinks) ||
4810 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4811 cur_params.dot11MeshMaxRetries) ||
4812 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4813 cur_params.dot11MeshTTL) ||
4814 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4815 cur_params.element_ttl) ||
4816 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4817 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4818 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4819 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4820 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4821 cur_params.dot11MeshHWMPmaxPREQretries) ||
4822 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4823 cur_params.path_refresh_time) ||
4824 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4825 cur_params.min_discovery_timeout) ||
4826 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4827 cur_params.dot11MeshHWMPactivePathTimeout) ||
4828 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4829 cur_params.dot11MeshHWMPpreqMinInterval) ||
4830 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4831 cur_params.dot11MeshHWMPperrMinInterval) ||
4832 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4833 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4834 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4835 cur_params.dot11MeshHWMPRootMode) ||
4836 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4837 cur_params.dot11MeshHWMPRannInterval) ||
4838 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4839 cur_params.dot11MeshGateAnnouncementProtocol) ||
4840 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4841 cur_params.dot11MeshForwarding) ||
4842 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4843 cur_params.rssi_threshold) ||
4844 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4845 cur_params.ht_opmode) ||
4846 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4847 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4848 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4849 cur_params.dot11MeshHWMProotInterval) ||
4850 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4851 cur_params.dot11MeshHWMPconfirmationInterval) ||
4852 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4853 cur_params.power_mode) ||
4854 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4855 cur_params.dot11MeshAwakeWindowDuration) ||
4856 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4857 cur_params.plink_timeout))
9360ffd1 4858 goto nla_put_failure;
93da9cc1 4859 nla_nest_end(msg, pinfoattr);
4860 genlmsg_end(msg, hdr);
4c476991 4861 return genlmsg_reply(msg, info);
93da9cc1 4862
3b85875a 4863 nla_put_failure:
93da9cc1 4864 genlmsg_cancel(msg, hdr);
efe1cf0c 4865 out:
d080e275 4866 nlmsg_free(msg);
4c476991 4867 return -ENOBUFS;
93da9cc1 4868}
4869
b54452b0 4870static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4871 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4872 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4873 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4874 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4875 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4876 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4877 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4878 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4879 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4880 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4881 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4882 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4883 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4884 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4885 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4886 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4887 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4888 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4889 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4890 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4891 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4892 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4893 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4894 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4895 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4896 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4897 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4898 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4899};
4900
c80d545d
JC		 4901static const struct nla_policy
4902 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4903 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4904 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4905 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4906 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4907 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4908 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4909 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4910 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4911 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4912};
4913
24bdd9f4 4914static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4915 struct mesh_config *cfg,
4916 u32 *mask_out)
93da9cc1 4917{
93da9cc1 4918 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4919 u32 mask = 0;
93da9cc1 4920
ea54fba2
MP		 4921#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4922do { \
4923 if (tb[attr]) { \
4924 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4925 return -EINVAL; \
4926 cfg->param = fn(tb[attr]); \
4927 mask |= (1 << (attr - 1)); \
4928 } \
4929} while (0)
bd90fdcc
JB		 4930
4931
24bdd9f4 4932 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4933 return -EINVAL;
4934 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4935 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4936 nl80211_meshconf_params_policy))
93da9cc1 4937 return -EINVAL;
4938
93da9cc1 4939 /* This makes sure that there aren't more than 32 mesh config
4940 * parameters (otherwise our bitfield scheme would not work.) */
4941 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4942
4943 /* Fill in the params struct */
ea54fba2 4944 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4945 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4946 nla_get_u16);
ea54fba2 4947 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4948 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4949 nla_get_u16);
ea54fba2 4950 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4951 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4952 nla_get_u16);
ea54fba2 4953 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4954 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4955 nla_get_u16);
ea54fba2 4956 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4957 mask, NL80211_MESHCONF_MAX_RETRIES,
4958 nla_get_u8);
ea54fba2 4959 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4960 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4961 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4962 mask, NL80211_MESHCONF_ELEMENT_TTL,
4963 nla_get_u8);
ea54fba2 4964 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4965 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4966 nla_get_u8);
ea54fba2
MP		 4967 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4968 1, 255, mask,
a4f606ea
CYY		 4969 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4970 nla_get_u32);
ea54fba2 4971 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4972 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4973 nla_get_u8);
ea54fba2 4974 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4975 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4976 nla_get_u32);
ea54fba2 4977 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4978 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4979 nla_get_u16);
ea54fba2
MP		 4980 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4981 1, 65535, mask,
a4f606ea
CYY		 4982 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4983 nla_get_u32);
93da9cc1 4984 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4985 1, 65535, mask,
4986 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4987 nla_get_u16);
dca7e943 4988 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4989 1, 65535, mask,
4990 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4991 nla_get_u16);
93da9cc1 4992 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4993 dot11MeshHWMPnetDiameterTraversalTime,
4994 1, 65535, mask,
a4f606ea
CYY		 4995 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4996 nla_get_u16);
ea54fba2
MP		 4997 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4998 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4999 nla_get_u8);
5000 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5001 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5002 nla_get_u16);
63c5723b 5003 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5004 dot11MeshGateAnnouncementProtocol, 0, 1,
5005 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5006 nla_get_u8);
ea54fba2 5007 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5008 mask, NL80211_MESHCONF_FORWARDING,
5009 nla_get_u8);
83374fe9 5010 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5011 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5012 nla_get_s32);
ea54fba2 5013 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5014 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5015 nla_get_u16);
5016 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5017 1, 65535, mask,
ac1073a6
CYY		 5018 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5019 nla_get_u32);
ea54fba2 5020 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5021 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5022 nla_get_u16);
5023 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5024 dot11MeshHWMPconfirmationInterval,
5025 1, 65535, mask,
728b19e5 5026 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5027 nla_get_u16);
3b1c5a53
MP		 5028 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5029 NL80211_MESH_POWER_ACTIVE,
5030 NL80211_MESH_POWER_MAX,
5031 mask, NL80211_MESHCONF_POWER_MODE,
5032 nla_get_u32);
5033 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5034 0, 65535, mask,
5035 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5036 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5037 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5038 nla_get_u32);
bd90fdcc
JB		 5039 if (mask_out)
5040 *mask_out = mask;
c80d545d 5041
bd90fdcc
JB		 5042 return 0;
5043
5044#undef FILL_IN_MESH_PARAM_IF_SET
5045}
5046
c80d545d
JC		 5047static int nl80211_parse_mesh_setup(struct genl_info *info,
5048 struct mesh_setup *setup)
5049{
bb2798d4 5050 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5051 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5052
5053 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5054 return -EINVAL;
5055 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5056 info->attrs[NL80211_ATTR_MESH_SETUP],
5057 nl80211_mesh_setup_params_policy))
5058 return -EINVAL;
5059
d299a1f2
JC		 5060 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5061 setup->sync_method =
5062 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5063 IEEE80211_SYNC_METHOD_VENDOR :
5064 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5065
c80d545d
JC		 5066 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5067 setup->path_sel_proto =
5068 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5069 IEEE80211_PATH_PROTOCOL_VENDOR :
5070 IEEE80211_PATH_PROTOCOL_HWMP;
5071
5072 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5073 setup->path_metric =
5074 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5075 IEEE80211_PATH_METRIC_VENDOR :
5076 IEEE80211_PATH_METRIC_AIRTIME;
5077
581a8b0f
JC		 5078
5079 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5080 struct nlattr *ieattr =
581a8b0f 5081 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5082 if (!is_valid_ie_attr(ieattr))
5083 return -EINVAL;
581a8b0f
JC		 5084 setup->ie = nla_data(ieattr);
5085 setup->ie_len = nla_len(ieattr);
c80d545d 5086 }
bb2798d4
TP		 5087 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5088 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5089 return -EINVAL;
5090 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5091 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5092 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5093 if (setup->is_secure)
5094 setup->user_mpm = true;
c80d545d 5095
6e16d90b
CT		 5096 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5097 if (!setup->user_mpm)
5098 return -EINVAL;
5099 setup->auth_id =
5100 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5101 }
5102
c80d545d
JC		 5103 return 0;
5104}
5105
24bdd9f4 5106static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5107 struct genl_info *info)
bd90fdcc
JB		 5108{
5109 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5110 struct net_device *dev = info->user_ptr[1];
29cbe68c 5111 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5112 struct mesh_config cfg;
5113 u32 mask;
5114 int err;
5115
29cbe68c
JB		 5116 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5117 return -EOPNOTSUPP;
5118
24bdd9f4 5119 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5120 return -EOPNOTSUPP;
5121
24bdd9f4 5122 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5123 if (err)
5124 return err;
5125
29cbe68c
JB		 5126 wdev_lock(wdev);
5127 if (!wdev->mesh_id_len)
5128 err = -ENOLINK;
5129
5130 if (!err)
e35e4d28 5131 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5132
5133 wdev_unlock(wdev);
5134
5135 return err;
93da9cc1 5136}
5137
f130347c
LR		 5138static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5139{
458f4f9e 5140 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5141 struct sk_buff *msg;
5142 void *hdr = NULL;
5143 struct nlattr *nl_reg_rules;
5144 unsigned int i;
f130347c
LR		 5145
5146 if (!cfg80211_regdomain)
5fe231e8 5147 return -EINVAL;
f130347c 5148
fd2120ca 5149 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5150 if (!msg)
5151 return -ENOBUFS;
f130347c 5152
15e47304 5153 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5154 NL80211_CMD_GET_REG);
5155 if (!hdr)
efe1cf0c 5156 goto put_failure;
f130347c 5157
57b5ce07
LR		 5158 if (reg_last_request_cell_base() &&
5159 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5160 NL80211_USER_REG_HINT_CELL_BASE))
5161 goto nla_put_failure;
5162
458f4f9e
JB		 5163 rcu_read_lock();
5164 regdom = rcu_dereference(cfg80211_regdomain);
5165
5166 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5167 (regdom->dfs_region &&
5168 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5169 goto nla_put_failure_rcu;
5170
f130347c
LR		 5171 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5172 if (!nl_reg_rules)
458f4f9e 5173 goto nla_put_failure_rcu;
f130347c 5174
458f4f9e 5175 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5176 struct nlattr *nl_reg_rule;
5177 const struct ieee80211_reg_rule *reg_rule;
5178 const struct ieee80211_freq_range *freq_range;
5179 const struct ieee80211_power_rule *power_rule;
97524820 5180 unsigned int max_bandwidth_khz;
f130347c 5181
458f4f9e 5182 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5183 freq_range = &reg_rule->freq_range;
5184 power_rule = &reg_rule->power_rule;
5185
5186 nl_reg_rule = nla_nest_start(msg, i);
5187 if (!nl_reg_rule)
458f4f9e 5188 goto nla_put_failure_rcu;
f130347c 5189
97524820
JD		 5190 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5191 if (!max_bandwidth_khz)
5192 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5193 reg_rule);
5194
9360ffd1
DM		 5195 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5196 reg_rule->flags) ||
5197 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5198 freq_range->start_freq_khz) ||
5199 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5200 freq_range->end_freq_khz) ||
5201 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5202 max_bandwidth_khz) ||
9360ffd1
DM		 5203 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5204 power_rule->max_antenna_gain) ||
5205 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5206 power_rule->max_eirp) ||
5207 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5208 reg_rule->dfs_cac_ms))
458f4f9e 5209 goto nla_put_failure_rcu;
f130347c
LR		 5210
5211 nla_nest_end(msg, nl_reg_rule);
5212 }
458f4f9e 5213 rcu_read_unlock();
f130347c
LR		 5214
5215 nla_nest_end(msg, nl_reg_rules);
5216
5217 genlmsg_end(msg, hdr);
5fe231e8 5218 return genlmsg_reply(msg, info);
f130347c 5219
458f4f9e
JB		 5220nla_put_failure_rcu:
5221 rcu_read_unlock();
f130347c
LR		 5222nla_put_failure:
5223 genlmsg_cancel(msg, hdr);
efe1cf0c 5224put_failure:
d080e275 5225 nlmsg_free(msg);
5fe231e8 5226 return -EMSGSIZE;
f130347c
LR		 5227}
5228
b2e1b302
LR		 5229static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5230{
5231 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5232 struct nlattr *nl_reg_rule;
5233 char *alpha2 = NULL;
5234 int rem_reg_rules = 0, r = 0;
5235 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5236 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5237 struct ieee80211_regdomain *rd = NULL;
5238
5239 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5240 return -EINVAL;
5241
5242 if (!info->attrs[NL80211_ATTR_REG_RULES])
5243 return -EINVAL;
5244
5245 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5246
8b60b078
LR		 5247 if (info->attrs[NL80211_ATTR_DFS_REGION])
5248 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5249
b2e1b302 5250 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5251 rem_reg_rules) {
b2e1b302
LR		 5252 num_rules++;
5253 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5254 return -EINVAL;
b2e1b302
LR		 5255 }
5256
e438768f
LR		 5257 if (!reg_is_valid_request(alpha2))
5258 return -EINVAL;
5259
b2e1b302 5260 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5261 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5262
5263 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5264 if (!rd)
5265 return -ENOMEM;
b2e1b302
LR		 5266
5267 rd->n_reg_rules = num_rules;
5268 rd->alpha2[0] = alpha2[0];
5269 rd->alpha2[1] = alpha2[1];
5270
8b60b078
LR		 5271 /*
5272 * Disable DFS master mode if the DFS region was
5273 * not supported or known on this kernel.
5274 */
5275 if (reg_supported_dfs_region(dfs_region))
5276 rd->dfs_region = dfs_region;
5277
b2e1b302 5278 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5279 rem_reg_rules) {
ae811e21
JB		 5280 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5281 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5282 reg_rule_policy);
5283 if (r)
5284 goto bad_reg;
b2e1b302
LR		 5285 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5286 if (r)
5287 goto bad_reg;
5288
5289 rule_idx++;
5290
d0e18f83
LR		 5291 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5292 r = -EINVAL;
b2e1b302 5293 goto bad_reg;
d0e18f83 5294 }
b2e1b302
LR		 5295 }
5296
b2e1b302 5297 r = set_regdom(rd);
6913b49a 5298 /* set_regdom took ownership */
1a919318 5299 rd = NULL;
b2e1b302 5300
d2372b31 5301 bad_reg:
b2e1b302 5302 kfree(rd);
d0e18f83 5303 return r;
b2e1b302
LR		 5304}
5305
83f5e2cf
JB		 5306static int validate_scan_freqs(struct nlattr *freqs)
5307{
5308 struct nlattr *attr1, *attr2;
5309 int n_channels = 0, tmp1, tmp2;
5310
5311 nla_for_each_nested(attr1, freqs, tmp1) {
5312 n_channels++;
5313 /*
5314 * Some hardware has a limited channel list for
5315 * scanning, and it is pretty much nonsensical
5316 * to scan for a channel twice, so disallow that
5317 * and don't require drivers to check that the
5318 * channel list they get isn't longer than what
5319 * they can scan, as long as they can scan all
5320 * the channels they registered at once.
5321 */
5322 nla_for_each_nested(attr2, freqs, tmp2)
5323 if (attr1 != attr2 &&
5324 nla_get_u32(attr1) == nla_get_u32(attr2))
5325 return 0;
5326 }
5327
5328 return n_channels;
5329}
5330
2a519311
JB		 5331static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5332{
4c476991 5333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5334 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5335 struct cfg80211_scan_request *request;
2a519311
JB		 5336 struct nlattr *attr;
5337 struct wiphy *wiphy;
83f5e2cf 5338 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5339 size_t ie_len;
2a519311 5340
f4a11bb0
JB		 5341 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5342 return -EINVAL;
5343
79c97e97 5344 wiphy = &rdev->wiphy;
2a519311 5345
4c476991
JB		 5346 if (!rdev->ops->scan)
5347 return -EOPNOTSUPP;
2a519311 5348
f9d15d16 5349 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5350 err = -EBUSY;
5351 goto unlock;
5352 }
2a519311
JB		 5353
5354 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5355 n_channels = validate_scan_freqs(
5356 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5357 if (!n_channels) {
5358 err = -EINVAL;
5359 goto unlock;
5360 }
2a519311 5361 } else {
bdfbec2d 5362 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5363 }
5364
5365 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5366 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5367 n_ssids++;
5368
f9f47529
JB		 5369 if (n_ssids > wiphy->max_scan_ssids) {
5370 err = -EINVAL;
5371 goto unlock;
5372 }
2a519311 5373
70692ad2
JM		 5374 if (info->attrs[NL80211_ATTR_IE])
5375 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5376 else
5377 ie_len = 0;
5378
f9f47529
JB		 5379 if (ie_len > wiphy->max_scan_ie_len) {
5380 err = -EINVAL;
5381 goto unlock;
5382 }
18a83659 5383
2a519311 5384 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5385 + sizeof(*request->ssids) * n_ssids
5386 + sizeof(*request->channels) * n_channels
70692ad2 5387 + ie_len, GFP_KERNEL);
f9f47529
JB		 5388 if (!request) {
5389 err = -ENOMEM;
5390 goto unlock;
5391 }
2a519311 5392
2a519311 5393 if (n_ssids)
5ba63533 5394 request->ssids = (void *)&request->channels[n_channels];
2a519311 5395 request->n_ssids = n_ssids;
70692ad2
JM		 5396 if (ie_len) {
5397 if (request->ssids)
5398 request->ie = (void *)(request->ssids + n_ssids);
5399 else
5400 request->ie = (void *)(request->channels + n_channels);
5401 }
2a519311 5402
584991dc 5403 i = 0;
2a519311
JB		 5404 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5405 /* user specified, bail out if channel not found */
2a519311 5406 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5407 struct ieee80211_channel *chan;
5408
5409 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5410
5411 if (!chan) {
2a519311
JB		 5412 err = -EINVAL;
5413 goto out_free;
5414 }
584991dc
JB		 5415
5416 /* ignore disabled channels */
5417 if (chan->flags & IEEE80211_CHAN_DISABLED)
5418 continue;
5419
5420 request->channels[i] = chan;
2a519311
JB		 5421 i++;
5422 }
5423 } else {
34850ab2
JB		 5424 enum ieee80211_band band;
5425
2a519311 5426 /* all channels */
2a519311
JB		 5427 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5428 int j;
5429 if (!wiphy->bands[band])
5430 continue;
5431 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5432 struct ieee80211_channel *chan;
5433
5434 chan = &wiphy->bands[band]->channels[j];
5435
5436 if (chan->flags & IEEE80211_CHAN_DISABLED)
5437 continue;
5438
5439 request->channels[i] = chan;
2a519311
JB		 5440 i++;
5441 }
5442 }
5443 }
5444
584991dc
JB		 5445 if (!i) {
5446 err = -EINVAL;
5447 goto out_free;
5448 }
5449
5450 request->n_channels = i;
5451
2a519311
JB		 5452 i = 0;
5453 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5454 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5455 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5456 err = -EINVAL;
5457 goto out_free;
5458 }
57a27e1d 5459 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5460 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5461 i++;
5462 }
5463 }
5464
70692ad2
JM		 5465 if (info->attrs[NL80211_ATTR_IE]) {
5466 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5467 memcpy((void *)request->ie,
5468 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5469 request->ie_len);
5470 }
5471
34850ab2 5472 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5473 if (wiphy->bands[i])
5474 request->rates[i] =
5475 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5476
5477 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5478 nla_for_each_nested(attr,
5479 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5480 tmp) {
5481 enum ieee80211_band band = nla_type(attr);
5482
84404623 5483 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5484 err = -EINVAL;
5485 goto out_free;
5486 }
1b09cd82
FF		 5487
5488 if (!wiphy->bands[band])
5489 continue;
5490
34850ab2
JB		 5491 err = ieee80211_get_ratemask(wiphy->bands[band],
5492 nla_data(attr),
5493 nla_len(attr),
5494 &request->rates[band]);
5495 if (err)
5496 goto out_free;
5497 }
5498 }
5499
46856bbf 5500 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5501 request->flags = nla_get_u32(
5502 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5503 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5504 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5505 err = -EOPNOTSUPP;
5506 goto out_free;
5507 }
5508 }
ed473771 5509
e9f935e3
RM		 5510 request->no_cck =
5511 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5512
fd014284 5513 request->wdev = wdev;
79c97e97 5514 request->wiphy = &rdev->wiphy;
15d6030b 5515 request->scan_start = jiffies;
2a519311 5516
79c97e97 5517 rdev->scan_req = request;
e35e4d28 5518 err = rdev_scan(rdev, request);
2a519311 5519
463d0183 5520 if (!err) {
fd014284
JB		 5521 nl80211_send_scan_start(rdev, wdev);
5522 if (wdev->netdev)
5523 dev_hold(wdev->netdev);
4c476991 5524 } else {
2a519311 5525 out_free:
79c97e97 5526 rdev->scan_req = NULL;
2a519311
JB		 5527 kfree(request);
5528 }
3b85875a 5529
f9f47529 5530 unlock:
2a519311
JB		 5531 return err;
5532}
5533
807f8a8c
LC		 5534static int nl80211_start_sched_scan(struct sk_buff *skb,
5535 struct genl_info *info)
5536{
5537 struct cfg80211_sched_scan_request *request;
5538 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5539 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5540 struct nlattr *attr;
5541 struct wiphy *wiphy;
a1f1c21c 5542 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5543 u32 interval;
807f8a8c
LC		 5544 enum ieee80211_band band;
5545 size_t ie_len;
a1f1c21c 5546 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5547 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c
LC		 5548
5549 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5550 !rdev->ops->sched_scan_start)
5551 return -EOPNOTSUPP;
5552
5553 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5554 return -EINVAL;
5555
bbe6ad6d
LC		 5556 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5557 return -EINVAL;
5558
5559 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5560 if (interval == 0)
5561 return -EINVAL;
5562
807f8a8c
LC		 5563 wiphy = &rdev->wiphy;
5564
5565 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5566 n_channels = validate_scan_freqs(
5567 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5568 if (!n_channels)
5569 return -EINVAL;
5570 } else {
bdfbec2d 5571 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5572 }
5573
5574 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5575 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5576 tmp)
5577 n_ssids++;
5578
93b6aa69 5579 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5580 return -EINVAL;
5581
ea73cbce
JB		 5582 /*
5583 * First, count the number of 'real' matchsets. Due to an issue with
5584 * the old implementation, matchsets containing only the RSSI attribute
5585 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5586 * RSSI for all matchsets, rather than their own matchset for reporting
5587 * all APs with a strong RSSI. This is needed to be compatible with
5588 * older userspace that treated a matchset with only the RSSI as the
5589 * global RSSI for all other matchsets - if there are other matchsets.
5590 */
5591 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c
LC		 5592 nla_for_each_nested(attr,
5593 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5594 tmp) {
5595 struct nlattr *rssi;
5596
5597 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5598 nla_data(attr), nla_len(attr),
5599 nl80211_match_policy);
5600 if (err)
5601 return err;
5602 /* add other standalone attributes here */
5603 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5604 n_match_sets++;
5605 continue;
5606 }
5607 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5608 if (rssi)
5609 default_match_rssi = nla_get_s32(rssi);
5610 }
5611 }
5612
5613 /* However, if there's no other matchset, add the RSSI one */
5614 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5615 n_match_sets = 1;
a1f1c21c
LC		 5616
5617 if (n_match_sets > wiphy->max_match_sets)
5618 return -EINVAL;
5619
807f8a8c
LC		 5620 if (info->attrs[NL80211_ATTR_IE])
5621 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5622 else
5623 ie_len = 0;
5624
5a865bad 5625 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5626 return -EINVAL;
5627
c10841ca
LC		 5628 if (rdev->sched_scan_req) {
5629 err = -EINPROGRESS;
5630 goto out;
5631 }
5632
807f8a8c 5633 request = kzalloc(sizeof(*request)
a2cd43c5 5634 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5635 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5636 + sizeof(*request->channels) * n_channels
807f8a8c 5637 + ie_len, GFP_KERNEL);
c10841ca
LC		 5638 if (!request) {
5639 err = -ENOMEM;
5640 goto out;
5641 }
807f8a8c
LC		 5642
5643 if (n_ssids)
5644 request->ssids = (void *)&request->channels[n_channels];
5645 request->n_ssids = n_ssids;
5646 if (ie_len) {
5647 if (request->ssids)
5648 request->ie = (void *)(request->ssids + n_ssids);
5649 else
5650 request->ie = (void *)(request->channels + n_channels);
5651 }
5652
a1f1c21c
LC		 5653 if (n_match_sets) {
5654 if (request->ie)
5655 request->match_sets = (void *)(request->ie + ie_len);
5656 else if (request->ssids)
5657 request->match_sets =
5658 (void *)(request->ssids + n_ssids);
5659 else
5660 request->match_sets =
5661 (void *)(request->channels + n_channels);
5662 }
5663 request->n_match_sets = n_match_sets;
5664
807f8a8c
LC		 5665 i = 0;
5666 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5667 /* user specified, bail out if channel not found */
5668 nla_for_each_nested(attr,
5669 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5670 tmp) {
5671 struct ieee80211_channel *chan;
5672
5673 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5674
5675 if (!chan) {
5676 err = -EINVAL;
5677 goto out_free;
5678 }
5679
5680 /* ignore disabled channels */
5681 if (chan->flags & IEEE80211_CHAN_DISABLED)
5682 continue;
5683
5684 request->channels[i] = chan;
5685 i++;
5686 }
5687 } else {
5688 /* all channels */
5689 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5690 int j;
5691 if (!wiphy->bands[band])
5692 continue;
5693 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5694 struct ieee80211_channel *chan;
5695
5696 chan = &wiphy->bands[band]->channels[j];
5697
5698 if (chan->flags & IEEE80211_CHAN_DISABLED)
5699 continue;
5700
5701 request->channels[i] = chan;
5702 i++;
5703 }
5704 }
5705 }
5706
5707 if (!i) {
5708 err = -EINVAL;
5709 goto out_free;
5710 }
5711
5712 request->n_channels = i;
5713
5714 i = 0;
5715 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5716 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5717 tmp) {
57a27e1d 5718 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5719 err = -EINVAL;
5720 goto out_free;
5721 }
57a27e1d 5722 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5723 memcpy(request->ssids[i].ssid, nla_data(attr),
5724 nla_len(attr));
807f8a8c
LC		 5725 i++;
5726 }
5727 }
5728
a1f1c21c
LC		 5729 i = 0;
5730 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5731 nla_for_each_nested(attr,
5732 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5733 tmp) {
88e920b4 5734 struct nlattr *ssid, *rssi;
a1f1c21c 5735
ae811e21
JB		 5736 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5737 nla_data(attr), nla_len(attr),
5738 nl80211_match_policy);
5739 if (err)
5740 goto out_free;
4a4ab0d7 5741 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 5742 if (ssid) {
ea73cbce
JB		 5743 if (WARN_ON(i >= n_match_sets)) {
5744 /* this indicates a programming error,
5745 * the loop above should have verified
5746 * things properly
5747 */
5748 err = -EINVAL;
5749 goto out_free;
5750 }
5751
a1f1c21c
LC		 5752 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5753 err = -EINVAL;
5754 goto out_free;
5755 }
5756 memcpy(request->match_sets[i].ssid.ssid,
5757 nla_data(ssid), nla_len(ssid));
5758 request->match_sets[i].ssid.ssid_len =
5759 nla_len(ssid);
ea73cbce
JB		 5760 /* special attribute - old implemenation w/a */
5761 request->match_sets[i].rssi_thold =
5762 default_match_rssi;
5763 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5764 if (rssi)
5765 request->match_sets[i].rssi_thold =
5766 nla_get_s32(rssi);
a1f1c21c
LC		 5767 }
5768 i++;
5769 }
ea73cbce
JB		 5770
5771 /* there was no other matchset, so the RSSI one is alone */
5772 if (i == 0)
5773 request->match_sets[0].rssi_thold = default_match_rssi;
5774
5775 request->min_rssi_thold = INT_MAX;
5776 for (i = 0; i < n_match_sets; i++)
5777 request->min_rssi_thold =
5778 min(request->match_sets[i].rssi_thold,
5779 request->min_rssi_thold);
5780 } else {
5781 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5782 }
5783
9900e484
JB		 5784 if (ie_len) {
5785 request->ie_len = ie_len;
807f8a8c
LC		 5786 memcpy((void *)request->ie,
5787 nla_data(info->attrs[NL80211_ATTR_IE]),
5788 request->ie_len);
5789 }
5790
46856bbf 5791 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5792 request->flags = nla_get_u32(
5793 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5794 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5795 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5796 err = -EOPNOTSUPP;
5797 goto out_free;
5798 }
5799 }
ed473771 5800
807f8a8c
LC		 5801 request->dev = dev;
5802 request->wiphy = &rdev->wiphy;
bbe6ad6d 5803 request->interval = interval;
15d6030b 5804 request->scan_start = jiffies;
807f8a8c 5805
e35e4d28 5806 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5807 if (!err) {
5808 rdev->sched_scan_req = request;
5809 nl80211_send_sched_scan(rdev, dev,
5810 NL80211_CMD_START_SCHED_SCAN);
5811 goto out;
5812 }
5813
5814out_free:
5815 kfree(request);
5816out:
5817 return err;
5818}
5819
5820static int nl80211_stop_sched_scan(struct sk_buff *skb,
5821 struct genl_info *info)
5822{
5823 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5824
5825 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5826 !rdev->ops->sched_scan_stop)
5827 return -EOPNOTSUPP;
5828
5fe231e8 5829 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5830}
5831
04f39047
SW		 5832static int nl80211_start_radar_detection(struct sk_buff *skb,
5833 struct genl_info *info)
5834{
5835 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5836 struct net_device *dev = info->user_ptr[1];
5837 struct wireless_dev *wdev = dev->ieee80211_ptr;
5838 struct cfg80211_chan_def chandef;
55f7435c 5839 enum nl80211_dfs_regions dfs_region;
31559f35 5840 unsigned int cac_time_ms;
04f39047
SW		 5841 int err;
5842
55f7435c
LR		 5843 dfs_region = reg_get_dfs_region(wdev->wiphy);
5844 if (dfs_region == NL80211_DFS_UNSET)
5845 return -EINVAL;
5846
04f39047
SW		 5847 err = nl80211_parse_chandef(rdev, info, &chandef);
5848 if (err)
5849 return err;
5850
ff311bc1
SW		 5851 if (netif_carrier_ok(dev))
5852 return -EBUSY;
5853
04f39047
SW		 5854 if (wdev->cac_started)
5855 return -EBUSY;
5856
2beb6dab 5857 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 5858 wdev->iftype);
04f39047
SW		 5859 if (err < 0)
5860 return err;
5861
5862 if (err == 0)
5863 return -EINVAL;
5864
fe7c3a1f 5865 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 5866 return -EINVAL;
5867
5868 if (!rdev->ops->start_radar_detection)
5869 return -EOPNOTSUPP;
5870
31559f35
JD		 5871 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5872 if (WARN_ON(!cac_time_ms))
5873 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5874
5875 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5876 cac_time_ms);
04f39047 5877 if (!err) {
9e0e2961 5878 wdev->chandef = chandef;
04f39047
SW		 5879 wdev->cac_started = true;
5880 wdev->cac_start_time = jiffies;
31559f35 5881 wdev->cac_time_ms = cac_time_ms;
04f39047 5882 }
04f39047
SW		 5883 return err;
5884}
5885
16ef1fe2
SW		 5886static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5887{
5888 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5889 struct net_device *dev = info->user_ptr[1];
5890 struct wireless_dev *wdev = dev->ieee80211_ptr;
5891 struct cfg80211_csa_settings params;
5892 /* csa_attrs is defined static to avoid waste of stack size - this
5893 * function is called under RTNL lock, so this should not be a problem.
5894 */
5895 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5896 u8 radar_detect_width = 0;
5897 int err;
ee4bc9e7 5898 bool need_new_beacon = false;
9a774c78 5899 int len, i;
16ef1fe2
SW		 5900
5901 if (!rdev->ops->channel_switch ||
5902 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5903 return -EOPNOTSUPP;
5904
ee4bc9e7
SW		 5905 switch (dev->ieee80211_ptr->iftype) {
5906 case NL80211_IFTYPE_AP:
5907 case NL80211_IFTYPE_P2P_GO:
5908 need_new_beacon = true;
5909
5910 /* useless if AP is not running */
5911 if (!wdev->beacon_interval)
1ff79dfa 5912 return -ENOTCONN;
ee4bc9e7
SW		 5913 break;
5914 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 5915 if (!wdev->ssid_len)
5916 return -ENOTCONN;
5917 break;
c6da674a 5918 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 5919 if (!wdev->mesh_id_len)
5920 return -ENOTCONN;
ee4bc9e7
SW		 5921 break;
5922 default:
16ef1fe2 5923 return -EOPNOTSUPP;
ee4bc9e7 5924 }
16ef1fe2
SW		 5925
5926 memset(&params, 0, sizeof(params));
5927
5928 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5929 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5930 return -EINVAL;
5931
5932 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 5933 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 5934 return -EINVAL;
5935
5936 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5937
ee4bc9e7
SW		 5938 if (!need_new_beacon)
5939 goto skip_beacons;
5940
16ef1fe2
SW		 5941 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
5942 if (err)
5943 return err;
5944
5945 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5946 info->attrs[NL80211_ATTR_CSA_IES],
5947 nl80211_policy);
5948 if (err)
5949 return err;
5950
5951 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
5952 if (err)
5953 return err;
5954
5955 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5956 return -EINVAL;
5957
9a774c78
AO		 5958 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5959 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 5960 return -EINVAL;
5961
9a774c78
AO		 5962 params.n_counter_offsets_beacon = len / sizeof(u16);
5963 if (rdev->wiphy.max_num_csa_counters &&
5964 (params.n_counter_offsets_beacon >
5965 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 5966 return -EINVAL;
5967
9a774c78
AO		 5968 params.counter_offsets_beacon =
5969 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5970
5971 /* sanity checks - counters should fit and be the same */
5972 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
5973 u16 offset = params.counter_offsets_beacon[i];
5974
5975 if (offset >= params.beacon_csa.tail_len)
5976 return -EINVAL;
5977
5978 if (params.beacon_csa.tail[offset] != params.count)
5979 return -EINVAL;
5980 }
5981
16ef1fe2 5982 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 5983 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5984 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 5985 return -EINVAL;
5986
9a774c78
AO		 5987 params.n_counter_offsets_presp = len / sizeof(u16);
5988 if (rdev->wiphy.max_num_csa_counters &&
5989 (params.n_counter_offsets_beacon >
5990 rdev->wiphy.max_num_csa_counters))
16ef1fe2 5991 return -EINVAL;
9a774c78
AO		 5992
5993 params.counter_offsets_presp =
5994 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5995
5996 /* sanity checks - counters should fit and be the same */
5997 for (i = 0; i < params.n_counter_offsets_presp; i++) {
5998 u16 offset = params.counter_offsets_presp[i];
5999
6000 if (offset >= params.beacon_csa.probe_resp_len)
6001 return -EINVAL;
6002
6003 if (params.beacon_csa.probe_resp[offset] !=
6004 params.count)
6005 return -EINVAL;
6006 }
16ef1fe2
SW		 6007 }
6008
ee4bc9e7 6009skip_beacons:
16ef1fe2
SW		 6010 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6011 if (err)
6012 return err;
6013
174e0cd2
IP		 6014 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6015 wdev->iftype))
16ef1fe2
SW		 6016 return -EINVAL;
6017
2beb6dab
LC		 6018 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6019 &params.chandef,
6020 wdev->iftype);
6021 if (err < 0)
6022 return err;
6023
6024 if (err > 0) {
6025 radar_detect_width = BIT(params.chandef.width);
6026 params.radar_required = true;
16ef1fe2
SW		 6027 }
6028
16ef1fe2
SW		 6029 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6030 params.block_tx = true;
6031
c56589ed
SW		 6032 wdev_lock(wdev);
6033 err = rdev_channel_switch(rdev, dev, &params);
6034 wdev_unlock(wdev);
6035
6036 return err;
16ef1fe2
SW		 6037}
6038
9720bb3a
JB		 6039static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6040 u32 seq, int flags,
2a519311 6041 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6042 struct wireless_dev *wdev,
6043 struct cfg80211_internal_bss *intbss)
2a519311 6044{
48ab905d 6045 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6046 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6047 void *hdr;
6048 struct nlattr *bss;
48ab905d
JB		 6049
6050 ASSERT_WDEV_LOCK(wdev);
2a519311 6051
15e47304 6052 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6053 NL80211_CMD_NEW_SCAN_RESULTS);
6054 if (!hdr)
6055 return -1;
6056
9720bb3a
JB		 6057 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6058
97990a06
JB		 6059 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6060 goto nla_put_failure;
6061 if (wdev->netdev &&
9360ffd1
DM		 6062 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6063 goto nla_put_failure;
97990a06
JB		 6064 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6065 goto nla_put_failure;
2a519311
JB		 6066
6067 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6068 if (!bss)
6069 goto nla_put_failure;
9360ffd1 6070 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6071 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6072 goto nla_put_failure;
9caf0364
JB		 6073
6074 rcu_read_lock();
0e227084
JB		 6075 /* indicate whether we have probe response data or not */
6076 if (rcu_access_pointer(res->proberesp_ies) &&
6077 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6078 goto fail_unlock_rcu;
6079
6080 /* this pointer prefers to be pointed to probe response data
6081 * but is always valid
6082 */
9caf0364 6083 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6084 if (ies) {
6085 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6086 goto fail_unlock_rcu;
8cef2c9d
JB		 6087 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6088 ies->len, ies->data))
6089 goto fail_unlock_rcu;
9caf0364 6090 }
0e227084
JB		 6091
6092 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6093 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6094 if (ies && ies->from_beacon) {
6095 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6096 goto fail_unlock_rcu;
6097 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6098 ies->len, ies->data))
6099 goto fail_unlock_rcu;
9caf0364
JB		 6100 }
6101 rcu_read_unlock();
6102
9360ffd1
DM		 6103 if (res->beacon_interval &&
6104 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6105 goto nla_put_failure;
6106 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6107 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6108 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6109 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6110 jiffies_to_msecs(jiffies - intbss->ts)))
6111 goto nla_put_failure;
2a519311 6112
77965c97 6113 switch (rdev->wiphy.signal_type) {
2a519311 6114 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6115 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6116 goto nla_put_failure;
2a519311
JB		 6117 break;
6118 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6119 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6120 goto nla_put_failure;
2a519311
JB		 6121 break;
6122 default:
6123 break;
6124 }
6125
48ab905d 6126 switch (wdev->iftype) {
074ac8df 6127 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6128 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6129 if (intbss == wdev->current_bss &&
6130 nla_put_u32(msg, NL80211_BSS_STATUS,
6131 NL80211_BSS_STATUS_ASSOCIATED))
6132 goto nla_put_failure;
48ab905d
JB		 6133 break;
6134 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6135 if (intbss == wdev->current_bss &&
6136 nla_put_u32(msg, NL80211_BSS_STATUS,
6137 NL80211_BSS_STATUS_IBSS_JOINED))
6138 goto nla_put_failure;
48ab905d
JB		 6139 break;
6140 default:
6141 break;
6142 }
6143
2a519311
JB		 6144 nla_nest_end(msg, bss);
6145
6146 return genlmsg_end(msg, hdr);
6147
8cef2c9d
JB		 6148 fail_unlock_rcu:
6149 rcu_read_unlock();
2a519311
JB		 6150 nla_put_failure:
6151 genlmsg_cancel(msg, hdr);
6152 return -EMSGSIZE;
6153}
6154
97990a06 6155static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6156{
48ab905d 6157 struct cfg80211_registered_device *rdev;
2a519311 6158 struct cfg80211_internal_bss *scan;
48ab905d 6159 struct wireless_dev *wdev;
97990a06 6160 int start = cb->args[2], idx = 0;
2a519311
JB		 6161 int err;
6162
97990a06 6163 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6164 if (err)
6165 return err;
2a519311 6166
48ab905d
JB		 6167 wdev_lock(wdev);
6168 spin_lock_bh(&rdev->bss_lock);
6169 cfg80211_bss_expire(rdev);
6170
9720bb3a
JB		 6171 cb->seq = rdev->bss_generation;
6172
48ab905d 6173 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6174 if (++idx <= start)
6175 continue;
9720bb3a 6176 if (nl80211_send_bss(skb, cb,
2a519311 6177 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6178 rdev, wdev, scan) < 0) {
2a519311 6179 idx--;
67748893 6180 break;
2a519311
JB		 6181 }
6182 }
6183
48ab905d
JB		 6184 spin_unlock_bh(&rdev->bss_lock);
6185 wdev_unlock(wdev);
2a519311 6186
97990a06
JB		 6187 cb->args[2] = idx;
6188 nl80211_finish_wdev_dump(rdev);
2a519311 6189
67748893 6190 return skb->len;
2a519311
JB		 6191}
6192
15e47304 6193static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6194 int flags, struct net_device *dev,
6195 struct survey_info *survey)
6196{
6197 void *hdr;
6198 struct nlattr *infoattr;
6199
15e47304 6200 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6201 NL80211_CMD_NEW_SURVEY_RESULTS);
6202 if (!hdr)
6203 return -ENOMEM;
6204
9360ffd1
DM		 6205 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6206 goto nla_put_failure;
61fa713c
HS		 6207
6208 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6209 if (!infoattr)
6210 goto nla_put_failure;
6211
9360ffd1
DM		 6212 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6213 survey->channel->center_freq))
6214 goto nla_put_failure;
6215
6216 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6217 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6218 goto nla_put_failure;
6219 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6220 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6221 goto nla_put_failure;
6222 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6223 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6224 survey->channel_time))
6225 goto nla_put_failure;
6226 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6227 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6228 survey->channel_time_busy))
6229 goto nla_put_failure;
6230 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6231 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6232 survey->channel_time_ext_busy))
6233 goto nla_put_failure;
6234 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6235 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6236 survey->channel_time_rx))
6237 goto nla_put_failure;
6238 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6239 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6240 survey->channel_time_tx))
6241 goto nla_put_failure;
61fa713c
HS		 6242
6243 nla_nest_end(msg, infoattr);
6244
6245 return genlmsg_end(msg, hdr);
6246
6247 nla_put_failure:
6248 genlmsg_cancel(msg, hdr);
6249 return -EMSGSIZE;
6250}
6251
6252static int nl80211_dump_survey(struct sk_buff *skb,
6253 struct netlink_callback *cb)
6254{
6255 struct survey_info survey;
1b8ec87a 6256 struct cfg80211_registered_device *rdev;
97990a06
JB		 6257 struct wireless_dev *wdev;
6258 int survey_idx = cb->args[2];
61fa713c
HS		 6259 int res;
6260
1b8ec87a 6261 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6262 if (res)
6263 return res;
61fa713c 6264
97990a06
JB		 6265 if (!wdev->netdev) {
6266 res = -EINVAL;
6267 goto out_err;
6268 }
6269
1b8ec87a 6270 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6271 res = -EOPNOTSUPP;
6272 goto out_err;
6273 }
6274
6275 while (1) {
180cdc79
LR		 6276 struct ieee80211_channel *chan;
6277
1b8ec87a 6278 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6279 if (res == -ENOENT)
6280 break;
6281 if (res)
6282 goto out_err;
6283
180cdc79
LR		 6284 /* Survey without a channel doesn't make sense */
6285 if (!survey.channel) {
6286 res = -EINVAL;
6287 goto out;
6288 }
6289
1b8ec87a 6290 chan = ieee80211_get_channel(&rdev->wiphy,
180cdc79
LR		 6291 survey.channel->center_freq);
6292 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6293 survey_idx++;
6294 continue;
6295 }
6296
61fa713c 6297 if (nl80211_send_survey(skb,
15e47304 6298 NETLINK_CB(cb->skb).portid,
61fa713c 6299 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6300 wdev->netdev, &survey) < 0)
61fa713c
HS		 6301 goto out;
6302 survey_idx++;
6303 }
6304
6305 out:
97990a06 6306 cb->args[2] = survey_idx;
61fa713c
HS		 6307 res = skb->len;
6308 out_err:
1b8ec87a 6309 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6310 return res;
6311}
6312
b23aa676
SO		 6313static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6314{
6315 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6316 NL80211_WPA_VERSION_2));
6317}
6318
636a5d36
JM		 6319static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6320{
4c476991
JB		 6321 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6322 struct net_device *dev = info->user_ptr[1];
19957bb3 6323 struct ieee80211_channel *chan;
e39e5b5e
JM		 6324 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6325 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6326 enum nl80211_auth_type auth_type;
fffd0934 6327 struct key_parse key;
d5cdfacb 6328 bool local_state_change;
636a5d36 6329
f4a11bb0
JB		 6330 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6331 return -EINVAL;
6332
6333 if (!info->attrs[NL80211_ATTR_MAC])
6334 return -EINVAL;
6335
1778092e
JM		 6336 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6337 return -EINVAL;
6338
19957bb3
JB		 6339 if (!info->attrs[NL80211_ATTR_SSID])
6340 return -EINVAL;
6341
6342 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6343 return -EINVAL;
6344
fffd0934
JB		 6345 err = nl80211_parse_key(info, &key);
6346 if (err)
6347 return err;
6348
6349 if (key.idx >= 0) {
e31b8213
JB		 6350 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6351 return -EINVAL;
fffd0934
JB		 6352 if (!key.p.key || !key.p.key_len)
6353 return -EINVAL;
6354 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6355 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6356 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6357 key.p.key_len != WLAN_KEY_LEN_WEP104))
6358 return -EINVAL;
6359 if (key.idx > 4)
6360 return -EINVAL;
6361 } else {
6362 key.p.key_len = 0;
6363 key.p.key = NULL;
6364 }
6365
afea0b7a
JB		 6366 if (key.idx >= 0) {
6367 int i;
6368 bool ok = false;
6369 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6370 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6371 ok = true;
6372 break;
6373 }
6374 }
4c476991
JB		 6375 if (!ok)
6376 return -EINVAL;
afea0b7a
JB		 6377 }
6378
4c476991
JB		 6379 if (!rdev->ops->auth)
6380 return -EOPNOTSUPP;
636a5d36 6381
074ac8df 6382 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6383 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6384 return -EOPNOTSUPP;
eec60b03 6385
19957bb3 6386 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6387 chan = nl80211_get_valid_chan(&rdev->wiphy,
6388 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6389 if (!chan)
4c476991 6390 return -EINVAL;
636a5d36 6391
19957bb3
JB		 6392 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6393 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6394
6395 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6396 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6397 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6398 }
6399
19957bb3 6400 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6401 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6402 return -EINVAL;
636a5d36 6403
e39e5b5e
JM		 6404 if (auth_type == NL80211_AUTHTYPE_SAE &&
6405 !info->attrs[NL80211_ATTR_SAE_DATA])
6406 return -EINVAL;
6407
6408 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6409 if (auth_type != NL80211_AUTHTYPE_SAE)
6410 return -EINVAL;
6411 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6412 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6413 /* need to include at least Auth Transaction and Status Code */
6414 if (sae_data_len < 4)
6415 return -EINVAL;
6416 }
6417
d5cdfacb
JM		 6418 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6419
95de817b
JB		 6420 /*
6421 * Since we no longer track auth state, ignore
6422 * requests to only change local state.
6423 */
6424 if (local_state_change)
6425 return 0;
6426
91bf9b26
JB		 6427 wdev_lock(dev->ieee80211_ptr);
6428 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6429 ssid, ssid_len, ie, ie_len,
6430 key.p.key, key.p.key_len, key.idx,
6431 sae_data, sae_data_len);
6432 wdev_unlock(dev->ieee80211_ptr);
6433 return err;
636a5d36
JM		 6434}
6435
c0692b8f
JB		 6436static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6437 struct genl_info *info,
3dc27d25
JB		 6438 struct cfg80211_crypto_settings *settings,
6439 int cipher_limit)
b23aa676 6440{
c0b2bbd8
JB		 6441 memset(settings, 0, sizeof(*settings));
6442
b23aa676
SO		 6443 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6444
c0692b8f
JB		 6445 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6446 u16 proto;
6447 proto = nla_get_u16(
6448 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6449 settings->control_port_ethertype = cpu_to_be16(proto);
6450 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6451 proto != ETH_P_PAE)
6452 return -EINVAL;
6453 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6454 settings->control_port_no_encrypt = true;
6455 } else
6456 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6457
b23aa676
SO		 6458 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6459 void *data;
6460 int len, i;
6461
6462 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6463 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6464 settings->n_ciphers_pairwise = len / sizeof(u32);
6465
6466 if (len % sizeof(u32))
6467 return -EINVAL;
6468
3dc27d25 6469 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6470 return -EINVAL;
6471
6472 memcpy(settings->ciphers_pairwise, data, len);
6473
6474 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6475 if (!cfg80211_supported_cipher_suite(
6476 &rdev->wiphy,
b23aa676
SO		 6477 settings->ciphers_pairwise[i]))
6478 return -EINVAL;
6479 }
6480
6481 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6482 settings->cipher_group =
6483 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6484 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6485 settings->cipher_group))
b23aa676
SO		 6486 return -EINVAL;
6487 }
6488
6489 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6490 settings->wpa_versions =
6491 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6492 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6493 return -EINVAL;
6494 }
6495
6496 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6497 void *data;
6d30240e 6498 int len;
b23aa676
SO		 6499
6500 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6501 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6502 settings->n_akm_suites = len / sizeof(u32);
6503
6504 if (len % sizeof(u32))
6505 return -EINVAL;
6506
1b9ca027
JM		 6507 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6508 return -EINVAL;
6509
b23aa676 6510 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6511 }
6512
6513 return 0;
6514}
6515
636a5d36
JM		 6516static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6517{
4c476991
JB		 6518 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6519 struct net_device *dev = info->user_ptr[1];
f444de05 6520 struct ieee80211_channel *chan;
f62fab73
JB		 6521 struct cfg80211_assoc_request req = {};
6522 const u8 *bssid, *ssid;
6523 int err, ssid_len = 0;
636a5d36 6524
f4a11bb0
JB		 6525 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6526 return -EINVAL;
6527
6528 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6529 !info->attrs[NL80211_ATTR_SSID] ||
6530 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6531 return -EINVAL;
6532
4c476991
JB		 6533 if (!rdev->ops->assoc)
6534 return -EOPNOTSUPP;
636a5d36 6535
074ac8df 6536 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6537 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6538 return -EOPNOTSUPP;
eec60b03 6539
19957bb3 6540 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6541
664834de
JM		 6542 chan = nl80211_get_valid_chan(&rdev->wiphy,
6543 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6544 if (!chan)
4c476991 6545 return -EINVAL;
636a5d36 6546
19957bb3
JB		 6547 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6548 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6549
6550 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6551 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6552 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6553 }
6554
dc6382ce 6555 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6556 enum nl80211_mfp mfp =
dc6382ce 6557 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6558 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6559 req.use_mfp = true;
4c476991
JB		 6560 else if (mfp != NL80211_MFP_NO)
6561 return -EINVAL;
dc6382ce
JM		 6562 }
6563
3e5d7649 6564 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6565 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6566
7e7c8926 6567 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6568 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6569
6570 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6571 memcpy(&req.ht_capa_mask,
6572 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6573 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6574
6575 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6576 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6577 return -EINVAL;
f62fab73
JB		 6578 memcpy(&req.ht_capa,
6579 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6580 sizeof(req.ht_capa));
7e7c8926
BG		 6581 }
6582
ee2aca34 6583 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6584 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6585
6586 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6587 memcpy(&req.vht_capa_mask,
6588 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6589 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6590
6591 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6592 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6593 return -EINVAL;
f62fab73
JB		 6594 memcpy(&req.vht_capa,
6595 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6596 sizeof(req.vht_capa));
ee2aca34
JB		 6597 }
6598
bab5ab7d
AK		 6599 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
6600 if (!(rdev->wiphy.features &
6601 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
6602 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
6603 return -EINVAL;
6604 req.flags |= ASSOC_REQ_USE_RRM;
6605 }
6606
f62fab73 6607 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6608 if (!err) {
6609 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6610 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6611 ssid, ssid_len, &req);
91bf9b26
JB		 6612 wdev_unlock(dev->ieee80211_ptr);
6613 }
636a5d36 6614
636a5d36
JM		 6615 return err;
6616}
6617
6618static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6619{
4c476991
JB		 6620 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6621 struct net_device *dev = info->user_ptr[1];
19957bb3 6622 const u8 *ie = NULL, *bssid;
91bf9b26 6623 int ie_len = 0, err;
19957bb3 6624 u16 reason_code;
d5cdfacb 6625 bool local_state_change;
636a5d36 6626
f4a11bb0
JB		 6627 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6628 return -EINVAL;
6629
6630 if (!info->attrs[NL80211_ATTR_MAC])
6631 return -EINVAL;
6632
6633 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6634 return -EINVAL;
6635
4c476991
JB		 6636 if (!rdev->ops->deauth)
6637 return -EOPNOTSUPP;
636a5d36 6638
074ac8df 6639 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6640 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6641 return -EOPNOTSUPP;
eec60b03 6642
19957bb3 6643 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6644
19957bb3
JB		 6645 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6646 if (reason_code == 0) {
f4a11bb0 6647 /* Reason Code 0 is reserved */
4c476991 6648 return -EINVAL;
255e737e 6649 }
636a5d36
JM		 6650
6651 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6652 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6653 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6654 }
6655
d5cdfacb
JM		 6656 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6657
91bf9b26
JB		 6658 wdev_lock(dev->ieee80211_ptr);
6659 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6660 local_state_change);
6661 wdev_unlock(dev->ieee80211_ptr);
6662 return err;
636a5d36
JM		 6663}
6664
6665static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6666{
4c476991
JB		 6667 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6668 struct net_device *dev = info->user_ptr[1];
19957bb3 6669 const u8 *ie = NULL, *bssid;
91bf9b26 6670 int ie_len = 0, err;
19957bb3 6671 u16 reason_code;
d5cdfacb 6672 bool local_state_change;
636a5d36 6673
f4a11bb0
JB		 6674 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6675 return -EINVAL;
6676
6677 if (!info->attrs[NL80211_ATTR_MAC])
6678 return -EINVAL;
6679
6680 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6681 return -EINVAL;
6682
4c476991
JB		 6683 if (!rdev->ops->disassoc)
6684 return -EOPNOTSUPP;
636a5d36 6685
074ac8df 6686 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6687 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6688 return -EOPNOTSUPP;
eec60b03 6689
19957bb3 6690 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6691
19957bb3
JB		 6692 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6693 if (reason_code == 0) {
f4a11bb0 6694 /* Reason Code 0 is reserved */
4c476991 6695 return -EINVAL;
255e737e 6696 }
636a5d36
JM		 6697
6698 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6699 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6700 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6701 }
6702
d5cdfacb
JM		 6703 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6704
91bf9b26
JB		 6705 wdev_lock(dev->ieee80211_ptr);
6706 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6707 local_state_change);
6708 wdev_unlock(dev->ieee80211_ptr);
6709 return err;
636a5d36
JM		 6710}
6711
dd5b4cc7
FF		 6712static bool
6713nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6714 int mcast_rate[IEEE80211_NUM_BANDS],
6715 int rateval)
6716{
6717 struct wiphy *wiphy = &rdev->wiphy;
6718 bool found = false;
6719 int band, i;
6720
6721 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6722 struct ieee80211_supported_band *sband;
6723
6724 sband = wiphy->bands[band];
6725 if (!sband)
6726 continue;
6727
6728 for (i = 0; i < sband->n_bitrates; i++) {
6729 if (sband->bitrates[i].bitrate == rateval) {
6730 mcast_rate[band] = i + 1;
6731 found = true;
6732 break;
6733 }
6734 }
6735 }
6736
6737 return found;
6738}
6739
04a773ad
JB		 6740static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6741{
4c476991
JB		 6742 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6743 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6744 struct cfg80211_ibss_params ibss;
6745 struct wiphy *wiphy;
fffd0934 6746 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6747 int err;
6748
8e30bc55
JB		 6749 memset(&ibss, 0, sizeof(ibss));
6750
04a773ad
JB		 6751 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6752 return -EINVAL;
6753
683b6d3b 6754 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6755 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6756 return -EINVAL;
6757
8e30bc55
JB		 6758 ibss.beacon_interval = 100;
6759
6760 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6761 ibss.beacon_interval =
6762 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6763 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6764 return -EINVAL;
6765 }
6766
4c476991
JB		 6767 if (!rdev->ops->join_ibss)
6768 return -EOPNOTSUPP;
04a773ad 6769
4c476991
JB		 6770 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6771 return -EOPNOTSUPP;
04a773ad 6772
79c97e97 6773 wiphy = &rdev->wiphy;
04a773ad 6774
39193498 6775 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6776 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6777
6778 if (!is_valid_ether_addr(ibss.bssid))
6779 return -EINVAL;
6780 }
04a773ad
JB		 6781 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6782 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6783
6784 if (info->attrs[NL80211_ATTR_IE]) {
6785 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6786 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6787 }
6788
683b6d3b
JB		 6789 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6790 if (err)
6791 return err;
04a773ad 6792
174e0cd2
IP		 6793 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6794 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 6795 return -EINVAL;
6796
2f301ab2 6797 switch (ibss.chandef.width) {
bf372645
SW		 6798 case NL80211_CHAN_WIDTH_5:
6799 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6800 case NL80211_CHAN_WIDTH_20_NOHT:
6801 break;
6802 case NL80211_CHAN_WIDTH_20:
6803 case NL80211_CHAN_WIDTH_40:
6804 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6805 break;
6806 default:
c04d6150 6807 return -EINVAL;
2f301ab2 6808 }
db9c64cf 6809
04a773ad 6810 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6811 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6812
fbd2c8dc
TP		 6813 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6814 u8 *rates =
6815 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6816 int n_rates =
6817 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6818 struct ieee80211_supported_band *sband =
683b6d3b 6819 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6820
34850ab2
JB		 6821 err = ieee80211_get_ratemask(sband, rates, n_rates,
6822 &ibss.basic_rates);
6823 if (err)
6824 return err;
fbd2c8dc 6825 }
dd5b4cc7 6826
803768f5
SW		 6827 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6828 memcpy(&ibss.ht_capa_mask,
6829 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6830 sizeof(ibss.ht_capa_mask));
6831
6832 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6833 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6834 return -EINVAL;
6835 memcpy(&ibss.ht_capa,
6836 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6837 sizeof(ibss.ht_capa));
6838 }
6839
dd5b4cc7
FF		 6840 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6841 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6842 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6843 return -EINVAL;
fbd2c8dc 6844
4c476991 6845 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6846 bool no_ht = false;
6847
4c476991 6848 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6849 info->attrs[NL80211_ATTR_KEYS],
6850 &no_ht);
4c476991
JB		 6851 if (IS_ERR(connkeys))
6852 return PTR_ERR(connkeys);
de7044ee 6853
3d9d1d66
JB		 6854 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6855 no_ht) {
de7044ee
SM		 6856 kfree(connkeys);
6857 return -EINVAL;
6858 }
4c476991 6859 }
04a773ad 6860
267335d6
AQ		 6861 ibss.control_port =
6862 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6863
5336fa88
SW		 6864 ibss.userspace_handles_dfs =
6865 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6866
4c476991 6867 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 6868 if (err)
b47f610b 6869 kzfree(connkeys);
04a773ad
JB		 6870 return err;
6871}
6872
6873static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6874{
4c476991
JB		 6875 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6876 struct net_device *dev = info->user_ptr[1];
04a773ad 6877
4c476991
JB		 6878 if (!rdev->ops->leave_ibss)
6879 return -EOPNOTSUPP;
04a773ad 6880
4c476991
JB		 6881 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6882 return -EOPNOTSUPP;
04a773ad 6883
4c476991 6884 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6885}
6886
f4e583c8
AQ		 6887static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6888{
6889 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6890 struct net_device *dev = info->user_ptr[1];
6891 int mcast_rate[IEEE80211_NUM_BANDS];
6892 u32 nla_rate;
6893 int err;
6894
6895 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6896 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6897 return -EOPNOTSUPP;
6898
6899 if (!rdev->ops->set_mcast_rate)
6900 return -EOPNOTSUPP;
6901
6902 memset(mcast_rate, 0, sizeof(mcast_rate));
6903
6904 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6905 return -EINVAL;
6906
6907 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6908 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6909 return -EINVAL;
6910
6911 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6912
6913 return err;
6914}
6915
ad7e718c
JB		 6916static struct sk_buff *
6917__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6918 int approxlen, u32 portid, u32 seq,
6919 enum nl80211_commands cmd,
567ffc35
JB		 6920 enum nl80211_attrs attr,
6921 const struct nl80211_vendor_cmd_info *info,
6922 gfp_t gfp)
ad7e718c
JB		 6923{
6924 struct sk_buff *skb;
6925 void *hdr;
6926 struct nlattr *data;
6927
6928 skb = nlmsg_new(approxlen + 100, gfp);
6929 if (!skb)
6930 return NULL;
6931
6932 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6933 if (!hdr) {
6934 kfree_skb(skb);
6935 return NULL;
6936 }
6937
6938 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6939 goto nla_put_failure;
567ffc35
JB		 6940
6941 if (info) {
6942 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6943 info->vendor_id))
6944 goto nla_put_failure;
6945 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6946 info->subcmd))
6947 goto nla_put_failure;
6948 }
6949
ad7e718c
JB		 6950 data = nla_nest_start(skb, attr);
6951
6952 ((void **)skb->cb)[0] = rdev;
6953 ((void **)skb->cb)[1] = hdr;
6954 ((void **)skb->cb)[2] = data;
6955
6956 return skb;
6957
6958 nla_put_failure:
6959 kfree_skb(skb);
6960 return NULL;
6961}
f4e583c8 6962
e03ad6ea
JB		 6963struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6964 enum nl80211_commands cmd,
6965 enum nl80211_attrs attr,
6966 int vendor_event_idx,
6967 int approxlen, gfp_t gfp)
6968{
f26cbf40 6969 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 6970 const struct nl80211_vendor_cmd_info *info;
6971
6972 switch (cmd) {
6973 case NL80211_CMD_TESTMODE:
6974 if (WARN_ON(vendor_event_idx != -1))
6975 return NULL;
6976 info = NULL;
6977 break;
6978 case NL80211_CMD_VENDOR:
6979 if (WARN_ON(vendor_event_idx < 0 ||
6980 vendor_event_idx >= wiphy->n_vendor_events))
6981 return NULL;
6982 info = &wiphy->vendor_events[vendor_event_idx];
6983 break;
6984 default:
6985 WARN_ON(1);
6986 return NULL;
6987 }
6988
6989 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6990 cmd, attr, info, gfp);
6991}
6992EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6993
6994void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6995{
6996 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6997 void *hdr = ((void **)skb->cb)[1];
6998 struct nlattr *data = ((void **)skb->cb)[2];
6999 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7000
7001 nla_nest_end(skb, data);
7002 genlmsg_end(skb, hdr);
7003
7004 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7005 mcgrp = NL80211_MCGRP_VENDOR;
7006
7007 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7008 mcgrp, gfp);
7009}
7010EXPORT_SYMBOL(__cfg80211_send_event_skb);
7011
aff89a9b 7012#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7013static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7014{
4c476991 7015 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7016 struct wireless_dev *wdev =
7017 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7018 int err;
7019
fc73f11f
DS		 7020 if (!rdev->ops->testmode_cmd)
7021 return -EOPNOTSUPP;
7022
7023 if (IS_ERR(wdev)) {
7024 err = PTR_ERR(wdev);
7025 if (err != -EINVAL)
7026 return err;
7027 wdev = NULL;
7028 } else if (wdev->wiphy != &rdev->wiphy) {
7029 return -EINVAL;
7030 }
7031
aff89a9b
JB		 7032 if (!info->attrs[NL80211_ATTR_TESTDATA])
7033 return -EINVAL;
7034
ad7e718c 7035 rdev->cur_cmd_info = info;
fc73f11f 7036 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7037 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7038 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7039 rdev->cur_cmd_info = NULL;
aff89a9b 7040
aff89a9b
JB		 7041 return err;
7042}
7043
71063f0e
WYG		 7044static int nl80211_testmode_dump(struct sk_buff *skb,
7045 struct netlink_callback *cb)
7046{
00918d33 7047 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7048 int err;
7049 long phy_idx;
7050 void *data = NULL;
7051 int data_len = 0;
7052
5fe231e8
JB		 7053 rtnl_lock();
7054
71063f0e
WYG		 7055 if (cb->args[0]) {
7056 /*
7057 * 0 is a valid index, but not valid for args[0],
7058 * so we need to offset by 1.
7059 */
7060 phy_idx = cb->args[0] - 1;
7061 } else {
7062 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7063 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7064 nl80211_policy);
7065 if (err)
5fe231e8 7066 goto out_err;
00918d33 7067
2bd7e35d
JB		 7068 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7069 nl80211_fam.attrbuf);
7070 if (IS_ERR(rdev)) {
5fe231e8
JB		 7071 err = PTR_ERR(rdev);
7072 goto out_err;
00918d33 7073 }
2bd7e35d
JB		 7074 phy_idx = rdev->wiphy_idx;
7075 rdev = NULL;
2bd7e35d 7076
71063f0e
WYG		 7077 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7078 cb->args[1] =
7079 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7080 }
7081
7082 if (cb->args[1]) {
7083 data = nla_data((void *)cb->args[1]);
7084 data_len = nla_len((void *)cb->args[1]);
7085 }
7086
00918d33
JB		 7087 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7088 if (!rdev) {
5fe231e8
JB		 7089 err = -ENOENT;
7090 goto out_err;
71063f0e 7091 }
71063f0e 7092
00918d33 7093 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7094 err = -EOPNOTSUPP;
7095 goto out_err;
7096 }
7097
7098 while (1) {
15e47304 7099 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7100 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7101 NL80211_CMD_TESTMODE);
7102 struct nlattr *tmdata;
7103
cb35fba3
DC		 7104 if (!hdr)
7105 break;
7106
9360ffd1 7107 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7108 genlmsg_cancel(skb, hdr);
7109 break;
7110 }
7111
7112 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7113 if (!tmdata) {
7114 genlmsg_cancel(skb, hdr);
7115 break;
7116 }
e35e4d28 7117 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7118 nla_nest_end(skb, tmdata);
7119
7120 if (err == -ENOBUFS || err == -ENOENT) {
7121 genlmsg_cancel(skb, hdr);
7122 break;
7123 } else if (err) {
7124 genlmsg_cancel(skb, hdr);
7125 goto out_err;
7126 }
7127
7128 genlmsg_end(skb, hdr);
7129 }
7130
7131 err = skb->len;
7132 /* see above */
7133 cb->args[0] = phy_idx + 1;
7134 out_err:
5fe231e8 7135 rtnl_unlock();
71063f0e
WYG		 7136 return err;
7137}
aff89a9b
JB		 7138#endif
7139
b23aa676
SO		 7140static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7141{
4c476991
JB		 7142 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7143 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7144 struct cfg80211_connect_params connect;
7145 struct wiphy *wiphy;
fffd0934 7146 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7147 int err;
7148
7149 memset(&connect, 0, sizeof(connect));
7150
7151 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7152 return -EINVAL;
7153
7154 if (!info->attrs[NL80211_ATTR_SSID] ||
7155 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7156 return -EINVAL;
7157
7158 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7159 connect.auth_type =
7160 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7161 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7162 NL80211_CMD_CONNECT))
b23aa676
SO		 7163 return -EINVAL;
7164 } else
7165 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7166
7167 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7168
c0692b8f 7169 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7170 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7171 if (err)
7172 return err;
b23aa676 7173
074ac8df 7174 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7175 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7176 return -EOPNOTSUPP;
b23aa676 7177
79c97e97 7178 wiphy = &rdev->wiphy;
b23aa676 7179
4486ea98
BS		 7180 connect.bg_scan_period = -1;
7181 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7182 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7183 connect.bg_scan_period =
7184 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7185 }
7186
b23aa676
SO		 7187 if (info->attrs[NL80211_ATTR_MAC])
7188 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7189 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7190 connect.bssid_hint =
7191 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7192 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7193 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7194
7195 if (info->attrs[NL80211_ATTR_IE]) {
7196 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7197 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7198 }
7199
cee00a95
JM		 7200 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7201 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7202 if (connect.mfp != NL80211_MFP_REQUIRED &&
7203 connect.mfp != NL80211_MFP_NO)
7204 return -EINVAL;
7205 } else {
7206 connect.mfp = NL80211_MFP_NO;
7207 }
7208
b23aa676 7209 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7210 connect.channel = nl80211_get_valid_chan(
7211 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7212 if (!connect.channel)
1df4a510
JM		 7213 return -EINVAL;
7214 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7215 connect.channel_hint = nl80211_get_valid_chan(
7216 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7217 if (!connect.channel_hint)
4c476991 7218 return -EINVAL;
b23aa676
SO		 7219 }
7220
fffd0934
JB		 7221 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7222 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7223 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7224 if (IS_ERR(connkeys))
7225 return PTR_ERR(connkeys);
fffd0934
JB		 7226 }
7227
7e7c8926
BG		 7228 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7229 connect.flags |= ASSOC_REQ_DISABLE_HT;
7230
7231 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7232 memcpy(&connect.ht_capa_mask,
7233 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7234 sizeof(connect.ht_capa_mask));
7235
7236 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7237 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7238 kzfree(connkeys);
7e7c8926 7239 return -EINVAL;
b4e4f47e 7240 }
7e7c8926
BG		 7241 memcpy(&connect.ht_capa,
7242 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7243 sizeof(connect.ht_capa));
7244 }
7245
ee2aca34
JB		 7246 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7247 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7248
7249 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7250 memcpy(&connect.vht_capa_mask,
7251 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7252 sizeof(connect.vht_capa_mask));
7253
7254 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7255 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7256 kzfree(connkeys);
ee2aca34
JB		 7257 return -EINVAL;
7258 }
7259 memcpy(&connect.vht_capa,
7260 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7261 sizeof(connect.vht_capa));
7262 }
7263
bab5ab7d
AK		 7264 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7265 if (!(rdev->wiphy.features &
7266 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7267 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7268 return -EINVAL;
7269 connect.flags |= ASSOC_REQ_USE_RRM;
7270 }
7271
83739b03
JB		 7272 wdev_lock(dev->ieee80211_ptr);
7273 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7274 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7275 if (err)
b47f610b 7276 kzfree(connkeys);
b23aa676
SO		 7277 return err;
7278}
7279
7280static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7281{
4c476991
JB		 7282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7283 struct net_device *dev = info->user_ptr[1];
b23aa676 7284 u16 reason;
83739b03 7285 int ret;
b23aa676
SO		 7286
7287 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7288 reason = WLAN_REASON_DEAUTH_LEAVING;
7289 else
7290 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7291
7292 if (reason == 0)
7293 return -EINVAL;
7294
074ac8df 7295 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7296 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7297 return -EOPNOTSUPP;
b23aa676 7298
83739b03
JB		 7299 wdev_lock(dev->ieee80211_ptr);
7300 ret = cfg80211_disconnect(rdev, dev, reason, true);
7301 wdev_unlock(dev->ieee80211_ptr);
7302 return ret;
b23aa676
SO		 7303}
7304
463d0183
JB		 7305static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7306{
4c476991 7307 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7308 struct net *net;
7309 int err;
7310 u32 pid;
7311
7312 if (!info->attrs[NL80211_ATTR_PID])
7313 return -EINVAL;
7314
7315 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7316
463d0183 7317 net = get_net_ns_by_pid(pid);
4c476991
JB		 7318 if (IS_ERR(net))
7319 return PTR_ERR(net);
463d0183
JB		 7320
7321 err = 0;
7322
7323 /* check if anything to do */
4c476991
JB		 7324 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7325 err = cfg80211_switch_netns(rdev, net);
463d0183 7326
463d0183 7327 put_net(net);
463d0183
JB		 7328 return err;
7329}
7330
67fbb16b
SO		 7331static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7332{
4c476991 7333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7334 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7335 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7336 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7337 struct cfg80211_pmksa pmksa;
7338
7339 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7340
7341 if (!info->attrs[NL80211_ATTR_MAC])
7342 return -EINVAL;
7343
7344 if (!info->attrs[NL80211_ATTR_PMKID])
7345 return -EINVAL;
7346
67fbb16b
SO		 7347 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7348 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7349
074ac8df 7350 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7351 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7352 return -EOPNOTSUPP;
67fbb16b
SO		 7353
7354 switch (info->genlhdr->cmd) {
7355 case NL80211_CMD_SET_PMKSA:
7356 rdev_ops = rdev->ops->set_pmksa;
7357 break;
7358 case NL80211_CMD_DEL_PMKSA:
7359 rdev_ops = rdev->ops->del_pmksa;
7360 break;
7361 default:
7362 WARN_ON(1);
7363 break;
7364 }
7365
4c476991
JB		 7366 if (!rdev_ops)
7367 return -EOPNOTSUPP;
67fbb16b 7368
4c476991 7369 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7370}
7371
7372static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7373{
4c476991
JB		 7374 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7375 struct net_device *dev = info->user_ptr[1];
67fbb16b 7376
074ac8df 7377 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7378 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7379 return -EOPNOTSUPP;
67fbb16b 7380
4c476991
JB		 7381 if (!rdev->ops->flush_pmksa)
7382 return -EOPNOTSUPP;
67fbb16b 7383
e35e4d28 7384 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7385}
7386
109086ce
AN		 7387static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7388{
7389 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7390 struct net_device *dev = info->user_ptr[1];
7391 u8 action_code, dialog_token;
df942e7b 7392 u32 peer_capability = 0;
109086ce
AN		 7393 u16 status_code;
7394 u8 *peer;
31fa97c5 7395 bool initiator;
109086ce
AN		 7396
7397 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7398 !rdev->ops->tdls_mgmt)
7399 return -EOPNOTSUPP;
7400
7401 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7402 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7403 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7404 !info->attrs[NL80211_ATTR_IE] ||
7405 !info->attrs[NL80211_ATTR_MAC])
7406 return -EINVAL;
7407
7408 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7409 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7410 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7411 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7412 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7413 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7414 peer_capability =
7415 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7416
e35e4d28 7417 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7418 dialog_token, status_code, peer_capability,
31fa97c5 7419 initiator,
e35e4d28
HG		 7420 nla_data(info->attrs[NL80211_ATTR_IE]),
7421 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7422}
7423
7424static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7425{
7426 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7427 struct net_device *dev = info->user_ptr[1];
7428 enum nl80211_tdls_operation operation;
7429 u8 *peer;
7430
7431 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7432 !rdev->ops->tdls_oper)
7433 return -EOPNOTSUPP;
7434
7435 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7436 !info->attrs[NL80211_ATTR_MAC])
7437 return -EINVAL;
7438
7439 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7440 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7441
e35e4d28 7442 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7443}
7444
9588bbd5
JM		 7445static int nl80211_remain_on_channel(struct sk_buff *skb,
7446 struct genl_info *info)
7447{
4c476991 7448 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7449 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7450 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7451 struct sk_buff *msg;
7452 void *hdr;
7453 u64 cookie;
683b6d3b 7454 u32 duration;
9588bbd5
JM		 7455 int err;
7456
7457 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7458 !info->attrs[NL80211_ATTR_DURATION])
7459 return -EINVAL;
7460
7461 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7462
ebf348fc
JB		 7463 if (!rdev->ops->remain_on_channel ||
7464 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7465 return -EOPNOTSUPP;
7466
9588bbd5 7467 /*
ebf348fc
JB		 7468 * We should be on that channel for at least a minimum amount of
7469 * time (10ms) but no longer than the driver supports.
9588bbd5 7470 */
ebf348fc 7471 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7472 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7473 return -EINVAL;
7474
683b6d3b
JB		 7475 err = nl80211_parse_chandef(rdev, info, &chandef);
7476 if (err)
7477 return err;
9588bbd5
JM		 7478
7479 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7480 if (!msg)
7481 return -ENOMEM;
9588bbd5 7482
15e47304 7483 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7484 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7485 if (!hdr) {
7486 err = -ENOBUFS;
9588bbd5
JM		 7487 goto free_msg;
7488 }
7489
683b6d3b
JB		 7490 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7491 duration, &cookie);
9588bbd5
JM		 7492
7493 if (err)
7494 goto free_msg;
7495
9360ffd1
DM		 7496 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7497 goto nla_put_failure;
9588bbd5
JM		 7498
7499 genlmsg_end(msg, hdr);
4c476991
JB		 7500
7501 return genlmsg_reply(msg, info);
9588bbd5
JM		 7502
7503 nla_put_failure:
7504 err = -ENOBUFS;
7505 free_msg:
7506 nlmsg_free(msg);
9588bbd5
JM		 7507 return err;
7508}
7509
7510static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7511 struct genl_info *info)
7512{
4c476991 7513 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7514 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7515 u64 cookie;
9588bbd5
JM		 7516
7517 if (!info->attrs[NL80211_ATTR_COOKIE])
7518 return -EINVAL;
7519
4c476991
JB		 7520 if (!rdev->ops->cancel_remain_on_channel)
7521 return -EOPNOTSUPP;
9588bbd5 7522
9588bbd5
JM		 7523 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7524
e35e4d28 7525 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7526}
7527
13ae75b1
JM		 7528static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7529 u8 *rates, u8 rates_len)
7530{
7531 u8 i;
7532 u32 mask = 0;
7533
7534 for (i = 0; i < rates_len; i++) {
7535 int rate = (rates[i] & 0x7f) * 5;
7536 int ridx;
7537 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7538 struct ieee80211_rate *srate =
7539 &sband->bitrates[ridx];
7540 if (rate == srate->bitrate) {
7541 mask |= 1 << ridx;
7542 break;
7543 }
7544 }
7545 if (ridx == sband->n_bitrates)
7546 return 0; /* rate not found */
7547 }
7548
7549 return mask;
7550}
7551
24db78c0
SW		 7552static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7553 u8 *rates, u8 rates_len,
7554 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7555{
7556 u8 i;
7557
7558 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7559
7560 for (i = 0; i < rates_len; i++) {
7561 int ridx, rbit;
7562
7563 ridx = rates[i] / 8;
7564 rbit = BIT(rates[i] % 8);
7565
7566 /* check validity */
910570b5 7567 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7568 return false;
7569
7570 /* check availability */
7571 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7572 mcs[ridx] |= rbit;
7573 else
7574 return false;
7575 }
7576
7577 return true;
7578}
7579
204e35a9
JD		 7580static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7581{
7582 u16 mcs_mask = 0;
7583
7584 switch (vht_mcs_map) {
7585 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7586 break;
7587 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7588 mcs_mask = 0x00FF;
7589 break;
7590 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7591 mcs_mask = 0x01FF;
7592 break;
7593 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7594 mcs_mask = 0x03FF;
7595 break;
7596 default:
7597 break;
7598 }
7599
7600 return mcs_mask;
7601}
7602
7603static void vht_build_mcs_mask(u16 vht_mcs_map,
7604 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7605{
7606 u8 nss;
7607
7608 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7609 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7610 vht_mcs_map >>= 2;
7611 }
7612}
7613
7614static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7615 struct nl80211_txrate_vht *txrate,
7616 u16 mcs[NL80211_VHT_NSS_MAX])
7617{
7618 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7619 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7620 u8 i;
7621
7622 if (!sband->vht_cap.vht_supported)
7623 return false;
7624
7625 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7626
7627 /* Build vht_mcs_mask from VHT capabilities */
7628 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7629
7630 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7631 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7632 mcs[i] = txrate->mcs[i];
7633 else
7634 return false;
7635 }
7636
7637 return true;
7638}
7639
b54452b0 7640static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7641 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7642 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7643 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7644 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7645 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7646 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7647};
7648
7649static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7650 struct genl_info *info)
7651{
7652 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7653 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7654 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7655 int rem, i;
7656 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7657 struct nlattr *tx_rates;
7658 struct ieee80211_supported_band *sband;
204e35a9 7659 u16 vht_tx_mcs_map;
13ae75b1 7660
4c476991
JB		 7661 if (!rdev->ops->set_bitrate_mask)
7662 return -EOPNOTSUPP;
13ae75b1
JM		 7663
7664 memset(&mask, 0, sizeof(mask));
7665 /* Default to all rates enabled */
7666 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7667 sband = rdev->wiphy.bands[i];
7869303b
JD		 7668
7669 if (!sband)
7670 continue;
7671
7672 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7673 memcpy(mask.control[i].ht_mcs,
7869303b 7674 sband->ht_cap.mcs.rx_mask,
d1e33e65 7675 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7676
7677 if (!sband->vht_cap.vht_supported)
7678 continue;
7679
7680 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7681 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7682 }
7683
b9243ab0
JD		 7684 /* if no rates are given set it back to the defaults */
7685 if (!info->attrs[NL80211_ATTR_TX_RATES])
7686 goto out;
7687
13ae75b1
JM		 7688 /*
7689 * The nested attribute uses enum nl80211_band as the index. This maps
7690 * directly to the enum ieee80211_band values used in cfg80211.
7691 */
24db78c0 7692 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 7693 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 7694 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 7695 int err;
7696
4c476991
JB		 7697 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7698 return -EINVAL;
13ae75b1 7699 sband = rdev->wiphy.bands[band];
4c476991
JB		 7700 if (sband == NULL)
7701 return -EINVAL;
ae811e21
JB		 7702 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7703 nla_len(tx_rates), nl80211_txattr_policy);
7704 if (err)
7705 return err;
13ae75b1
JM		 7706 if (tb[NL80211_TXRATE_LEGACY]) {
7707 mask.control[band].legacy = rateset_to_mask(
7708 sband,
7709 nla_data(tb[NL80211_TXRATE_LEGACY]),
7710 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7711 if ((mask.control[band].legacy == 0) &&
7712 nla_len(tb[NL80211_TXRATE_LEGACY]))
7713 return -EINVAL;
24db78c0 7714 }
d1e33e65 7715 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7716 if (!ht_rateset_to_mask(
7717 sband,
d1e33e65
JD		 7718 nla_data(tb[NL80211_TXRATE_HT]),
7719 nla_len(tb[NL80211_TXRATE_HT]),
7720 mask.control[band].ht_mcs))
24db78c0
SW		 7721 return -EINVAL;
7722 }
204e35a9
JD		 7723 if (tb[NL80211_TXRATE_VHT]) {
7724 if (!vht_set_mcs_mask(
7725 sband,
7726 nla_data(tb[NL80211_TXRATE_VHT]),
7727 mask.control[band].vht_mcs))
7728 return -EINVAL;
7729 }
0b9323f6
JD		 7730 if (tb[NL80211_TXRATE_GI]) {
7731 mask.control[band].gi =
7732 nla_get_u8(tb[NL80211_TXRATE_GI]);
7733 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7734 return -EINVAL;
7735 }
24db78c0
SW		 7736
7737 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7738 /* don't allow empty legacy rates if HT or VHT
7739 * are not even supported.
7740 */
7741 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7742 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 7743 return -EINVAL;
7744
7745 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7746 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 7747 goto out;
7748
7749 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7750 if (mask.control[band].vht_mcs[i])
7751 goto out;
24db78c0
SW		 7752
7753 /* legacy and mcs rates may not be both empty */
204e35a9 7754 return -EINVAL;
13ae75b1
JM		 7755 }
7756 }
7757
b9243ab0 7758out:
e35e4d28 7759 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7760}
7761
2e161f78 7762static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7763{
4c476991 7764 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7765 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7766 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7767
7768 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7769 return -EINVAL;
7770
2e161f78
JB		 7771 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7772 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7773
71bbc994
JB		 7774 switch (wdev->iftype) {
7775 case NL80211_IFTYPE_STATION:
7776 case NL80211_IFTYPE_ADHOC:
7777 case NL80211_IFTYPE_P2P_CLIENT:
7778 case NL80211_IFTYPE_AP:
7779 case NL80211_IFTYPE_AP_VLAN:
7780 case NL80211_IFTYPE_MESH_POINT:
7781 case NL80211_IFTYPE_P2P_GO:
98104fde 7782 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7783 break;
7784 default:
4c476991 7785 return -EOPNOTSUPP;
71bbc994 7786 }
026331c4
JM		 7787
7788 /* not much point in registering if we can't reply */
4c476991
JB		 7789 if (!rdev->ops->mgmt_tx)
7790 return -EOPNOTSUPP;
026331c4 7791
15e47304 7792 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7793 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7794 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7795}
7796
2e161f78 7797static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7798{
4c476991 7799 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7800 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7801 struct cfg80211_chan_def chandef;
026331c4 7802 int err;
d64d373f 7803 void *hdr = NULL;
026331c4 7804 u64 cookie;
e247bd90 7805 struct sk_buff *msg = NULL;
b176e629
AO		 7806 struct cfg80211_mgmt_tx_params params = {
7807 .dont_wait_for_ack =
7808 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7809 };
026331c4 7810
683b6d3b 7811 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7812 return -EINVAL;
7813
4c476991
JB		 7814 if (!rdev->ops->mgmt_tx)
7815 return -EOPNOTSUPP;
026331c4 7816
71bbc994 7817 switch (wdev->iftype) {
ea141b75
AQ		 7818 case NL80211_IFTYPE_P2P_DEVICE:
7819 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7820 return -EINVAL;
71bbc994
JB		 7821 case NL80211_IFTYPE_STATION:
7822 case NL80211_IFTYPE_ADHOC:
7823 case NL80211_IFTYPE_P2P_CLIENT:
7824 case NL80211_IFTYPE_AP:
7825 case NL80211_IFTYPE_AP_VLAN:
7826 case NL80211_IFTYPE_MESH_POINT:
7827 case NL80211_IFTYPE_P2P_GO:
7828 break;
7829 default:
4c476991 7830 return -EOPNOTSUPP;
71bbc994 7831 }
026331c4 7832
f7ca38df 7833 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7834 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 7835 return -EINVAL;
b176e629 7836 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7837
7838 /*
7839 * We should wait on the channel for at least a minimum amount
7840 * of time (10ms) but no longer than the driver supports.
7841 */
b176e629
AO		 7842 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7843 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 7844 return -EINVAL;
7845
f7ca38df
JB		 7846 }
7847
b176e629 7848 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 7849
b176e629 7850 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 7851 return -EINVAL;
7852
b176e629 7853 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 7854
ea141b75
AQ		 7855 /* get the channel if any has been specified, otherwise pass NULL to
7856 * the driver. The latter will use the current one
7857 */
7858 chandef.chan = NULL;
7859 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7860 err = nl80211_parse_chandef(rdev, info, &chandef);
7861 if (err)
7862 return err;
7863 }
7864
b176e629 7865 if (!chandef.chan && params.offchan)
ea141b75 7866 return -EINVAL;
026331c4 7867
34d22ce2
AO		 7868 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7869 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7870
7871 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
7872 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7873 int i;
7874
7875 if (len % sizeof(u16))
7876 return -EINVAL;
7877
7878 params.n_csa_offsets = len / sizeof(u16);
7879 params.csa_offsets =
7880 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7881
7882 /* check that all the offsets fit the frame */
7883 for (i = 0; i < params.n_csa_offsets; i++) {
7884 if (params.csa_offsets[i] >= params.len)
7885 return -EINVAL;
7886 }
7887 }
7888
b176e629 7889 if (!params.dont_wait_for_ack) {
e247bd90
JB		 7890 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7891 if (!msg)
7892 return -ENOMEM;
026331c4 7893
15e47304 7894 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7895 NL80211_CMD_FRAME);
cb35fba3
DC		 7896 if (!hdr) {
7897 err = -ENOBUFS;
e247bd90
JB		 7898 goto free_msg;
7899 }
026331c4 7900 }
e247bd90 7901
b176e629
AO		 7902 params.chan = chandef.chan;
7903 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 7904 if (err)
7905 goto free_msg;
7906
e247bd90 7907 if (msg) {
9360ffd1
DM		 7908 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7909 goto nla_put_failure;
026331c4 7910
e247bd90
JB		 7911 genlmsg_end(msg, hdr);
7912 return genlmsg_reply(msg, info);
7913 }
7914
7915 return 0;
026331c4
JM		 7916
7917 nla_put_failure:
7918 err = -ENOBUFS;
7919 free_msg:
7920 nlmsg_free(msg);
026331c4
JM		 7921 return err;
7922}
7923
f7ca38df
JB		 7924static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7925{
7926 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7927 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7928 u64 cookie;
7929
7930 if (!info->attrs[NL80211_ATTR_COOKIE])
7931 return -EINVAL;
7932
7933 if (!rdev->ops->mgmt_tx_cancel_wait)
7934 return -EOPNOTSUPP;
7935
71bbc994
JB		 7936 switch (wdev->iftype) {
7937 case NL80211_IFTYPE_STATION:
7938 case NL80211_IFTYPE_ADHOC:
7939 case NL80211_IFTYPE_P2P_CLIENT:
7940 case NL80211_IFTYPE_AP:
7941 case NL80211_IFTYPE_AP_VLAN:
7942 case NL80211_IFTYPE_P2P_GO:
98104fde 7943 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7944 break;
7945 default:
f7ca38df 7946 return -EOPNOTSUPP;
71bbc994 7947 }
f7ca38df
JB		 7948
7949 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7950
e35e4d28 7951 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7952}
7953
ffb9eb3d
KV		 7954static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7955{
4c476991 7956 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7957 struct wireless_dev *wdev;
4c476991 7958 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7959 u8 ps_state;
7960 bool state;
7961 int err;
7962
4c476991
JB		 7963 if (!info->attrs[NL80211_ATTR_PS_STATE])
7964 return -EINVAL;
ffb9eb3d
KV		 7965
7966 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7967
4c476991
JB		 7968 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7969 return -EINVAL;
ffb9eb3d
KV		 7970
7971 wdev = dev->ieee80211_ptr;
7972
4c476991
JB		 7973 if (!rdev->ops->set_power_mgmt)
7974 return -EOPNOTSUPP;
ffb9eb3d
KV		 7975
7976 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7977
7978 if (state == wdev->ps)
4c476991 7979 return 0;
ffb9eb3d 7980
e35e4d28 7981 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7982 if (!err)
7983 wdev->ps = state;
ffb9eb3d
KV		 7984 return err;
7985}
7986
7987static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7988{
4c476991 7989 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7990 enum nl80211_ps_state ps_state;
7991 struct wireless_dev *wdev;
4c476991 7992 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7993 struct sk_buff *msg;
7994 void *hdr;
7995 int err;
7996
ffb9eb3d
KV		 7997 wdev = dev->ieee80211_ptr;
7998
4c476991
JB		 7999 if (!rdev->ops->set_power_mgmt)
8000 return -EOPNOTSUPP;
ffb9eb3d
KV		 8001
8002 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8003 if (!msg)
8004 return -ENOMEM;
ffb9eb3d 8005
15e47304 8006 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8007 NL80211_CMD_GET_POWER_SAVE);
8008 if (!hdr) {
4c476991 8009 err = -ENOBUFS;
ffb9eb3d
KV		 8010 goto free_msg;
8011 }
8012
8013 if (wdev->ps)
8014 ps_state = NL80211_PS_ENABLED;
8015 else
8016 ps_state = NL80211_PS_DISABLED;
8017
9360ffd1
DM		 8018 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8019 goto nla_put_failure;
ffb9eb3d
KV		 8020
8021 genlmsg_end(msg, hdr);
4c476991 8022 return genlmsg_reply(msg, info);
ffb9eb3d 8023
4c476991 8024 nla_put_failure:
ffb9eb3d 8025 err = -ENOBUFS;
4c476991 8026 free_msg:
ffb9eb3d 8027 nlmsg_free(msg);
ffb9eb3d
KV		 8028 return err;
8029}
8030
94e860f1
JB		 8031static const struct nla_policy
8032nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8033 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8034 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8035 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8036 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8037 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8038 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8039};
8040
84f10708 8041static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8042 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8043{
8044 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8045 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8046 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8047
d9d8b019 8048 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8049 return -EINVAL;
8050
84f10708
TP		 8051 if (!rdev->ops->set_cqm_txe_config)
8052 return -EOPNOTSUPP;
8053
8054 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8055 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8056 return -EOPNOTSUPP;
8057
e35e4d28 8058 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8059}
8060
d6dc1a38
JO		 8061static int nl80211_set_cqm_rssi(struct genl_info *info,
8062 s32 threshold, u32 hysteresis)
8063{
4c476991 8064 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8065 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8066 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8067
8068 if (threshold > 0)
8069 return -EINVAL;
8070
1da5fcc8
JB		 8071 /* disabling - hysteresis should also be zero then */
8072 if (threshold == 0)
8073 hysteresis = 0;
d6dc1a38 8074
4c476991
JB		 8075 if (!rdev->ops->set_cqm_rssi_config)
8076 return -EOPNOTSUPP;
d6dc1a38 8077
074ac8df 8078 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8079 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8080 return -EOPNOTSUPP;
d6dc1a38 8081
e35e4d28 8082 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8083}
8084
8085static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8086{
8087 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8088 struct nlattr *cqm;
8089 int err;
8090
8091 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8092 if (!cqm)
8093 return -EINVAL;
d6dc1a38
JO		 8094
8095 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8096 nl80211_attr_cqm_policy);
8097 if (err)
1da5fcc8 8098 return err;
d6dc1a38
JO		 8099
8100 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8101 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8102 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8103 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8104
1da5fcc8
JB		 8105 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8106 }
8107
8108 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8109 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8110 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8111 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8112 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8113 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8114
8115 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8116 }
8117
8118 return -EINVAL;
d6dc1a38
JO		 8119}
8120
29cbe68c
JB		 8121static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8122{
8123 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8124 struct net_device *dev = info->user_ptr[1];
8125 struct mesh_config cfg;
c80d545d 8126 struct mesh_setup setup;
29cbe68c
JB		 8127 int err;
8128
8129 /* start with default */
8130 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8131 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8132
24bdd9f4 8133 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8134 /* and parse parameters if given */
24bdd9f4 8135 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8136 if (err)
8137 return err;
8138 }
8139
8140 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8141 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8142 return -EINVAL;
8143
c80d545d
JC		 8144 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8145 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8146
4bb62344
CYY		 8147 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8148 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8149 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8150 return -EINVAL;
8151
9bdbf04d
MP		 8152 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8153 setup.beacon_interval =
8154 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8155 if (setup.beacon_interval < 10 ||
8156 setup.beacon_interval > 10000)
8157 return -EINVAL;
8158 }
8159
8160 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8161 setup.dtim_period =
8162 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8163 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8164 return -EINVAL;
8165 }
8166
c80d545d
JC		 8167 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8168 /* parse additional setup parameters if given */
8169 err = nl80211_parse_mesh_setup(info, &setup);
8170 if (err)
8171 return err;
8172 }
8173
d37bb18a
TP		 8174 if (setup.user_mpm)
8175 cfg.auto_open_plinks = false;
8176
cc1d2806 8177 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8178 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8179 if (err)
8180 return err;
cc1d2806
JB		 8181 } else {
8182 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8183 setup.chandef.chan = NULL;
cc1d2806
JB		 8184 }
8185
ffb3cf30
AN		 8186 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8187 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8188 int n_rates =
8189 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8190 struct ieee80211_supported_band *sband;
8191
8192 if (!setup.chandef.chan)
8193 return -EINVAL;
8194
8195 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8196
8197 err = ieee80211_get_ratemask(sband, rates, n_rates,
8198 &setup.basic_rates);
8199 if (err)
8200 return err;
8201 }
8202
c80d545d 8203 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8204}
8205
8206static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8207{
8208 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8209 struct net_device *dev = info->user_ptr[1];
8210
8211 return cfg80211_leave_mesh(rdev, dev);
8212}
8213
dfb89c56 8214#ifdef CONFIG_PM
bb92d199
AK		 8215static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8216 struct cfg80211_registered_device *rdev)
8217{
6abb9cb9 8218 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8219 struct nlattr *nl_pats, *nl_pat;
8220 int i, pat_len;
8221
6abb9cb9 8222 if (!wowlan->n_patterns)
bb92d199
AK		 8223 return 0;
8224
8225 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8226 if (!nl_pats)
8227 return -ENOBUFS;
8228
6abb9cb9 8229 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8230 nl_pat = nla_nest_start(msg, i + 1);
8231 if (!nl_pat)
8232 return -ENOBUFS;
6abb9cb9 8233 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8234 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8235 wowlan->patterns[i].mask) ||
50ac6607
AK		 8236 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8237 wowlan->patterns[i].pattern) ||
8238 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8239 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8240 return -ENOBUFS;
8241 nla_nest_end(msg, nl_pat);
8242 }
8243 nla_nest_end(msg, nl_pats);
8244
8245 return 0;
8246}
8247
2a0e047e
JB		 8248static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8249 struct cfg80211_wowlan_tcp *tcp)
8250{
8251 struct nlattr *nl_tcp;
8252
8253 if (!tcp)
8254 return 0;
8255
8256 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8257 if (!nl_tcp)
8258 return -ENOBUFS;
8259
8260 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8261 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8262 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8263 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8264 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8265 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8266 tcp->payload_len, tcp->payload) ||
8267 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8268 tcp->data_interval) ||
8269 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8270 tcp->wake_len, tcp->wake_data) ||
8271 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8272 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8273 return -ENOBUFS;
8274
8275 if (tcp->payload_seq.len &&
8276 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8277 sizeof(tcp->payload_seq), &tcp->payload_seq))
8278 return -ENOBUFS;
8279
8280 if (tcp->payload_tok.len &&
8281 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8282 sizeof(tcp->payload_tok) + tcp->tokens_size,
8283 &tcp->payload_tok))
8284 return -ENOBUFS;
8285
e248ad30
JB		 8286 nla_nest_end(msg, nl_tcp);
8287
2a0e047e
JB		 8288 return 0;
8289}
8290
ff1b6e69
JB		 8291static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8292{
8293 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8294 struct sk_buff *msg;
8295 void *hdr;
2a0e047e 8296 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8297
964dc9e2 8298 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8299 return -EOPNOTSUPP;
8300
6abb9cb9 8301 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8302 /* adjust size to have room for all the data */
6abb9cb9
JB		 8303 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8304 rdev->wiphy.wowlan_config->tcp->payload_len +
8305 rdev->wiphy.wowlan_config->tcp->wake_len +
8306 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8307 }
8308
8309 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8310 if (!msg)
8311 return -ENOMEM;
8312
15e47304 8313 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8314 NL80211_CMD_GET_WOWLAN);
8315 if (!hdr)
8316 goto nla_put_failure;
8317
6abb9cb9 8318 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8319 struct nlattr *nl_wowlan;
8320
8321 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8322 if (!nl_wowlan)
8323 goto nla_put_failure;
8324
6abb9cb9 8325 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8326 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8327 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8328 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8329 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8330 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8331 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8332 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8333 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8334 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8335 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8336 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8337 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8338 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8339 goto nla_put_failure;
2a0e047e 8340
bb92d199
AK		 8341 if (nl80211_send_wowlan_patterns(msg, rdev))
8342 goto nla_put_failure;
2a0e047e 8343
6abb9cb9
JB		 8344 if (nl80211_send_wowlan_tcp(msg,
8345 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8346 goto nla_put_failure;
8347
ff1b6e69
JB		 8348 nla_nest_end(msg, nl_wowlan);
8349 }
8350
8351 genlmsg_end(msg, hdr);
8352 return genlmsg_reply(msg, info);
8353
8354nla_put_failure:
8355 nlmsg_free(msg);
8356 return -ENOBUFS;
8357}
8358
2a0e047e
JB		 8359static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8360 struct nlattr *attr,
8361 struct cfg80211_wowlan *trig)
8362{
8363 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8364 struct cfg80211_wowlan_tcp *cfg;
8365 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8366 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8367 u32 size;
8368 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8369 int err, port;
8370
964dc9e2 8371 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8372 return -EINVAL;
8373
8374 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8375 nla_data(attr), nla_len(attr),
8376 nl80211_wowlan_tcp_policy);
8377 if (err)
8378 return err;
8379
8380 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8381 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8382 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8383 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8384 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8385 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8386 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8387 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8388 return -EINVAL;
8389
8390 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8391 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8392 return -EINVAL;
8393
8394 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8395 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8396 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8397 return -EINVAL;
8398
8399 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8400 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8401 return -EINVAL;
8402
8403 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8404 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8405 return -EINVAL;
8406
8407 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8408 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8409
8410 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8411 tokens_size = tokln - sizeof(*tok);
8412
8413 if (!tok->len || tokens_size % tok->len)
8414 return -EINVAL;
964dc9e2 8415 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8416 return -EINVAL;
964dc9e2 8417 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8418 return -EINVAL;
964dc9e2 8419 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8420 return -EINVAL;
964dc9e2 8421 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8422 return -EINVAL;
8423 if (tok->offset + tok->len > data_size)
8424 return -EINVAL;
8425 }
8426
8427 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8428 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8429 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8430 return -EINVAL;
8431 if (seq->len == 0 || seq->len > 4)
8432 return -EINVAL;
8433 if (seq->len + seq->offset > data_size)
8434 return -EINVAL;
8435 }
8436
8437 size = sizeof(*cfg);
8438 size += data_size;
8439 size += wake_size + wake_mask_size;
8440 size += tokens_size;
8441
8442 cfg = kzalloc(size, GFP_KERNEL);
8443 if (!cfg)
8444 return -ENOMEM;
8445 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8446 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8447 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8448 ETH_ALEN);
8449 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8450 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8451 else
8452 port = 0;
8453#ifdef CONFIG_INET
8454 /* allocate a socket and port for it and use it */
8455 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8456 IPPROTO_TCP, &cfg->sock, 1);
8457 if (err) {
8458 kfree(cfg);
8459 return err;
8460 }
8461 if (inet_csk_get_port(cfg->sock->sk, port)) {
8462 sock_release(cfg->sock);
8463 kfree(cfg);
8464 return -EADDRINUSE;
8465 }
8466 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8467#else
8468 if (!port) {
8469 kfree(cfg);
8470 return -EINVAL;
8471 }
8472 cfg->src_port = port;
8473#endif
8474
8475 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8476 cfg->payload_len = data_size;
8477 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8478 memcpy((void *)cfg->payload,
8479 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8480 data_size);
8481 if (seq)
8482 cfg->payload_seq = *seq;
8483 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8484 cfg->wake_len = wake_size;
8485 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8486 memcpy((void *)cfg->wake_data,
8487 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8488 wake_size);
8489 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8490 data_size + wake_size;
8491 memcpy((void *)cfg->wake_mask,
8492 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8493 wake_mask_size);
8494 if (tok) {
8495 cfg->tokens_size = tokens_size;
8496 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8497 }
8498
8499 trig->tcp = cfg;
8500
8501 return 0;
8502}
8503
ff1b6e69
JB		 8504static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8505{
8506 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8507 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8508 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8509 struct cfg80211_wowlan *ntrig;
964dc9e2 8510 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8511 int err, i;
6abb9cb9 8512 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8513
964dc9e2 8514 if (!wowlan)
ff1b6e69
JB		 8515 return -EOPNOTSUPP;
8516
ae33bd81
JB		 8517 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8518 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8519 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8520 goto set_wakeup;
8521 }
ff1b6e69
JB		 8522
8523 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8524 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8525 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8526 nl80211_wowlan_policy);
8527 if (err)
8528 return err;
8529
8530 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8531 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8532 return -EINVAL;
8533 new_triggers.any = true;
8534 }
8535
8536 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8537 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8538 return -EINVAL;
8539 new_triggers.disconnect = true;
8540 }
8541
8542 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8543 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8544 return -EINVAL;
8545 new_triggers.magic_pkt = true;
8546 }
8547
77dbbb13
JB		 8548 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8549 return -EINVAL;
8550
8551 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8552 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8553 return -EINVAL;
8554 new_triggers.gtk_rekey_failure = true;
8555 }
8556
8557 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8558 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8559 return -EINVAL;
8560 new_triggers.eap_identity_req = true;
8561 }
8562
8563 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8564 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8565 return -EINVAL;
8566 new_triggers.four_way_handshake = true;
8567 }
8568
8569 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8570 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8571 return -EINVAL;
8572 new_triggers.rfkill_release = true;
8573 }
8574
ff1b6e69
JB		 8575 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8576 struct nlattr *pat;
8577 int n_patterns = 0;
bb92d199 8578 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8579 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8580
8581 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8582 rem)
8583 n_patterns++;
8584 if (n_patterns > wowlan->n_patterns)
8585 return -EINVAL;
8586
8587 new_triggers.patterns = kcalloc(n_patterns,
8588 sizeof(new_triggers.patterns[0]),
8589 GFP_KERNEL);
8590 if (!new_triggers.patterns)
8591 return -ENOMEM;
8592
8593 new_triggers.n_patterns = n_patterns;
8594 i = 0;
8595
8596 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8597 rem) {
922bd80f
JB		 8598 u8 *mask_pat;
8599
50ac6607
AK		 8600 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8601 nla_len(pat), NULL);
ff1b6e69 8602 err = -EINVAL;
50ac6607
AK		 8603 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8604 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8605 goto error;
50ac6607 8606 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8607 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8608 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8609 goto error;
8610 if (pat_len > wowlan->pattern_max_len ||
8611 pat_len < wowlan->pattern_min_len)
8612 goto error;
8613
50ac6607 8614 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8615 pkt_offset = 0;
8616 else
8617 pkt_offset = nla_get_u32(
50ac6607 8618 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8619 if (pkt_offset > wowlan->max_pkt_offset)
8620 goto error;
8621 new_triggers.patterns[i].pkt_offset = pkt_offset;
8622
922bd80f
JB		 8623 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8624 if (!mask_pat) {
ff1b6e69
JB		 8625 err = -ENOMEM;
8626 goto error;
8627 }
922bd80f
JB		 8628 new_triggers.patterns[i].mask = mask_pat;
8629 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 8630 mask_len);
922bd80f
JB		 8631 mask_pat += mask_len;
8632 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 8633 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 8634 memcpy(mask_pat,
50ac6607 8635 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8636 pat_len);
8637 i++;
8638 }
8639 }
8640
2a0e047e
JB		 8641 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8642 err = nl80211_parse_wowlan_tcp(
8643 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8644 &new_triggers);
8645 if (err)
8646 goto error;
8647 }
8648
ae33bd81
JB		 8649 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8650 if (!ntrig) {
8651 err = -ENOMEM;
8652 goto error;
ff1b6e69 8653 }
ae33bd81 8654 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8655 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8656
ae33bd81 8657 set_wakeup:
6abb9cb9
JB		 8658 if (rdev->ops->set_wakeup &&
8659 prev_enabled != !!rdev->wiphy.wowlan_config)
8660 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8661
ff1b6e69
JB		 8662 return 0;
8663 error:
8664 for (i = 0; i < new_triggers.n_patterns; i++)
8665 kfree(new_triggers.patterns[i].mask);
8666 kfree(new_triggers.patterns);
2a0e047e
JB		 8667 if (new_triggers.tcp && new_triggers.tcp->sock)
8668 sock_release(new_triggers.tcp->sock);
8669 kfree(new_triggers.tcp);
ff1b6e69
JB		 8670 return err;
8671}
dfb89c56 8672#endif
ff1b6e69 8673
be29b99a
AK		 8674static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8675 struct cfg80211_registered_device *rdev)
8676{
8677 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8678 int i, j, pat_len;
8679 struct cfg80211_coalesce_rules *rule;
8680
8681 if (!rdev->coalesce->n_rules)
8682 return 0;
8683
8684 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8685 if (!nl_rules)
8686 return -ENOBUFS;
8687
8688 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8689 nl_rule = nla_nest_start(msg, i + 1);
8690 if (!nl_rule)
8691 return -ENOBUFS;
8692
8693 rule = &rdev->coalesce->rules[i];
8694 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8695 rule->delay))
8696 return -ENOBUFS;
8697
8698 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8699 rule->condition))
8700 return -ENOBUFS;
8701
8702 nl_pats = nla_nest_start(msg,
8703 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8704 if (!nl_pats)
8705 return -ENOBUFS;
8706
8707 for (j = 0; j < rule->n_patterns; j++) {
8708 nl_pat = nla_nest_start(msg, j + 1);
8709 if (!nl_pat)
8710 return -ENOBUFS;
8711 pat_len = rule->patterns[j].pattern_len;
8712 if (nla_put(msg, NL80211_PKTPAT_MASK,
8713 DIV_ROUND_UP(pat_len, 8),
8714 rule->patterns[j].mask) ||
8715 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8716 rule->patterns[j].pattern) ||
8717 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8718 rule->patterns[j].pkt_offset))
8719 return -ENOBUFS;
8720 nla_nest_end(msg, nl_pat);
8721 }
8722 nla_nest_end(msg, nl_pats);
8723 nla_nest_end(msg, nl_rule);
8724 }
8725 nla_nest_end(msg, nl_rules);
8726
8727 return 0;
8728}
8729
8730static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8731{
8732 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8733 struct sk_buff *msg;
8734 void *hdr;
8735
8736 if (!rdev->wiphy.coalesce)
8737 return -EOPNOTSUPP;
8738
8739 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8740 if (!msg)
8741 return -ENOMEM;
8742
8743 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8744 NL80211_CMD_GET_COALESCE);
8745 if (!hdr)
8746 goto nla_put_failure;
8747
8748 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8749 goto nla_put_failure;
8750
8751 genlmsg_end(msg, hdr);
8752 return genlmsg_reply(msg, info);
8753
8754nla_put_failure:
8755 nlmsg_free(msg);
8756 return -ENOBUFS;
8757}
8758
8759void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8760{
8761 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8762 int i, j;
8763 struct cfg80211_coalesce_rules *rule;
8764
8765 if (!coalesce)
8766 return;
8767
8768 for (i = 0; i < coalesce->n_rules; i++) {
8769 rule = &coalesce->rules[i];
8770 for (j = 0; j < rule->n_patterns; j++)
8771 kfree(rule->patterns[j].mask);
8772 kfree(rule->patterns);
8773 }
8774 kfree(coalesce->rules);
8775 kfree(coalesce);
8776 rdev->coalesce = NULL;
8777}
8778
8779static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8780 struct nlattr *rule,
8781 struct cfg80211_coalesce_rules *new_rule)
8782{
8783 int err, i;
8784 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8785 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8786 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8787 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8788
8789 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8790 nla_len(rule), nl80211_coalesce_policy);
8791 if (err)
8792 return err;
8793
8794 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8795 new_rule->delay =
8796 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8797 if (new_rule->delay > coalesce->max_delay)
8798 return -EINVAL;
8799
8800 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8801 new_rule->condition =
8802 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8803 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8804 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8805 return -EINVAL;
8806
8807 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8808 return -EINVAL;
8809
8810 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8811 rem)
8812 n_patterns++;
8813 if (n_patterns > coalesce->n_patterns)
8814 return -EINVAL;
8815
8816 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8817 GFP_KERNEL);
8818 if (!new_rule->patterns)
8819 return -ENOMEM;
8820
8821 new_rule->n_patterns = n_patterns;
8822 i = 0;
8823
8824 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8825 rem) {
922bd80f
JB		 8826 u8 *mask_pat;
8827
be29b99a
AK		 8828 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8829 nla_len(pat), NULL);
8830 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8831 !pat_tb[NL80211_PKTPAT_PATTERN])
8832 return -EINVAL;
8833 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8834 mask_len = DIV_ROUND_UP(pat_len, 8);
8835 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8836 return -EINVAL;
8837 if (pat_len > coalesce->pattern_max_len ||
8838 pat_len < coalesce->pattern_min_len)
8839 return -EINVAL;
8840
8841 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8842 pkt_offset = 0;
8843 else
8844 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8845 if (pkt_offset > coalesce->max_pkt_offset)
8846 return -EINVAL;
8847 new_rule->patterns[i].pkt_offset = pkt_offset;
8848
922bd80f
JB		 8849 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8850 if (!mask_pat)
be29b99a 8851 return -ENOMEM;
922bd80f
JB		 8852
8853 new_rule->patterns[i].mask = mask_pat;
8854 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8855 mask_len);
8856
8857 mask_pat += mask_len;
8858 new_rule->patterns[i].pattern = mask_pat;
be29b99a 8859 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 8860 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8861 pat_len);
be29b99a
AK		 8862 i++;
8863 }
8864
8865 return 0;
8866}
8867
8868static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8869{
8870 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8871 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8872 struct cfg80211_coalesce new_coalesce = {};
8873 struct cfg80211_coalesce *n_coalesce;
8874 int err, rem_rule, n_rules = 0, i, j;
8875 struct nlattr *rule;
8876 struct cfg80211_coalesce_rules *tmp_rule;
8877
8878 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8879 return -EOPNOTSUPP;
8880
8881 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8882 cfg80211_rdev_free_coalesce(rdev);
8883 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8884 return 0;
8885 }
8886
8887 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8888 rem_rule)
8889 n_rules++;
8890 if (n_rules > coalesce->n_rules)
8891 return -EINVAL;
8892
8893 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8894 GFP_KERNEL);
8895 if (!new_coalesce.rules)
8896 return -ENOMEM;
8897
8898 new_coalesce.n_rules = n_rules;
8899 i = 0;
8900
8901 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8902 rem_rule) {
8903 err = nl80211_parse_coalesce_rule(rdev, rule,
8904 &new_coalesce.rules[i]);
8905 if (err)
8906 goto error;
8907
8908 i++;
8909 }
8910
8911 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8912 if (err)
8913 goto error;
8914
8915 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8916 if (!n_coalesce) {
8917 err = -ENOMEM;
8918 goto error;
8919 }
8920 cfg80211_rdev_free_coalesce(rdev);
8921 rdev->coalesce = n_coalesce;
8922
8923 return 0;
8924error:
8925 for (i = 0; i < new_coalesce.n_rules; i++) {
8926 tmp_rule = &new_coalesce.rules[i];
8927 for (j = 0; j < tmp_rule->n_patterns; j++)
8928 kfree(tmp_rule->patterns[j].mask);
8929 kfree(tmp_rule->patterns);
8930 }
8931 kfree(new_coalesce.rules);
8932
8933 return err;
8934}
8935
e5497d76
JB		 8936static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8937{
8938 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8939 struct net_device *dev = info->user_ptr[1];
8940 struct wireless_dev *wdev = dev->ieee80211_ptr;
8941 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8942 struct cfg80211_gtk_rekey_data rekey_data;
8943 int err;
8944
8945 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8946 return -EINVAL;
8947
8948 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8949 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8950 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8951 nl80211_rekey_policy);
8952 if (err)
8953 return err;
8954
8955 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8956 return -ERANGE;
8957 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8958 return -ERANGE;
8959 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8960 return -ERANGE;
8961
8962 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8963 NL80211_KEK_LEN);
8964 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8965 NL80211_KCK_LEN);
8966 memcpy(rekey_data.replay_ctr,
8967 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8968 NL80211_REPLAY_CTR_LEN);
8969
8970 wdev_lock(wdev);
8971 if (!wdev->current_bss) {
8972 err = -ENOTCONN;
8973 goto out;
8974 }
8975
8976 if (!rdev->ops->set_rekey_data) {
8977 err = -EOPNOTSUPP;
8978 goto out;
8979 }
8980
e35e4d28 8981 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8982 out:
8983 wdev_unlock(wdev);
8984 return err;
8985}
8986
28946da7
JB		 8987static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8988 struct genl_info *info)
8989{
8990 struct net_device *dev = info->user_ptr[1];
8991 struct wireless_dev *wdev = dev->ieee80211_ptr;
8992
8993 if (wdev->iftype != NL80211_IFTYPE_AP &&
8994 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8995 return -EINVAL;
8996
15e47304 8997 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8998 return -EBUSY;
8999
15e47304 9000 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9001 return 0;
9002}
9003
7f6cf311
JB		 9004static int nl80211_probe_client(struct sk_buff *skb,
9005 struct genl_info *info)
9006{
9007 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9008 struct net_device *dev = info->user_ptr[1];
9009 struct wireless_dev *wdev = dev->ieee80211_ptr;
9010 struct sk_buff *msg;
9011 void *hdr;
9012 const u8 *addr;
9013 u64 cookie;
9014 int err;
9015
9016 if (wdev->iftype != NL80211_IFTYPE_AP &&
9017 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9018 return -EOPNOTSUPP;
9019
9020 if (!info->attrs[NL80211_ATTR_MAC])
9021 return -EINVAL;
9022
9023 if (!rdev->ops->probe_client)
9024 return -EOPNOTSUPP;
9025
9026 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9027 if (!msg)
9028 return -ENOMEM;
9029
15e47304 9030 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9031 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9032 if (!hdr) {
9033 err = -ENOBUFS;
7f6cf311
JB		 9034 goto free_msg;
9035 }
9036
9037 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9038
e35e4d28 9039 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9040 if (err)
9041 goto free_msg;
9042
9360ffd1
DM		 9043 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9044 goto nla_put_failure;
7f6cf311
JB		 9045
9046 genlmsg_end(msg, hdr);
9047
9048 return genlmsg_reply(msg, info);
9049
9050 nla_put_failure:
9051 err = -ENOBUFS;
9052 free_msg:
9053 nlmsg_free(msg);
9054 return err;
9055}
9056
5e760230
JB		 9057static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9058{
9059 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9060 struct cfg80211_beacon_registration *reg, *nreg;
9061 int rv;
5e760230
JB		 9062
9063 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9064 return -EOPNOTSUPP;
9065
37c73b5f
BG		 9066 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9067 if (!nreg)
9068 return -ENOMEM;
9069
9070 /* First, check if already registered. */
9071 spin_lock_bh(&rdev->beacon_registrations_lock);
9072 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9073 if (reg->nlportid == info->snd_portid) {
9074 rv = -EALREADY;
9075 goto out_err;
9076 }
9077 }
9078 /* Add it to the list */
9079 nreg->nlportid = info->snd_portid;
9080 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9081
37c73b5f 9082 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9083
9084 return 0;
37c73b5f
BG		 9085out_err:
9086 spin_unlock_bh(&rdev->beacon_registrations_lock);
9087 kfree(nreg);
9088 return rv;
5e760230
JB		 9089}
9090
98104fde
JB		 9091static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9092{
9093 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9094 struct wireless_dev *wdev = info->user_ptr[1];
9095 int err;
9096
9097 if (!rdev->ops->start_p2p_device)
9098 return -EOPNOTSUPP;
9099
9100 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9101 return -EOPNOTSUPP;
9102
9103 if (wdev->p2p_started)
9104 return 0;
9105
b6a55015
LC		 9106 if (rfkill_blocked(rdev->rfkill))
9107 return -ERFKILL;
98104fde 9108
eeb126e9 9109 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9110 if (err)
9111 return err;
9112
9113 wdev->p2p_started = true;
98104fde 9114 rdev->opencount++;
98104fde
JB		 9115
9116 return 0;
9117}
9118
9119static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9120{
9121 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9122 struct wireless_dev *wdev = info->user_ptr[1];
9123
9124 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9125 return -EOPNOTSUPP;
9126
9127 if (!rdev->ops->stop_p2p_device)
9128 return -EOPNOTSUPP;
9129
f9f47529 9130 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9131
9132 return 0;
9133}
9134
3713b4e3
JB		 9135static int nl80211_get_protocol_features(struct sk_buff *skb,
9136 struct genl_info *info)
9137{
9138 void *hdr;
9139 struct sk_buff *msg;
9140
9141 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9142 if (!msg)
9143 return -ENOMEM;
9144
9145 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9146 NL80211_CMD_GET_PROTOCOL_FEATURES);
9147 if (!hdr)
9148 goto nla_put_failure;
9149
9150 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9151 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9152 goto nla_put_failure;
9153
9154 genlmsg_end(msg, hdr);
9155 return genlmsg_reply(msg, info);
9156
9157 nla_put_failure:
9158 kfree_skb(msg);
9159 return -ENOBUFS;
9160}
9161
355199e0
JM		 9162static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9163{
9164 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9165 struct cfg80211_update_ft_ies_params ft_params;
9166 struct net_device *dev = info->user_ptr[1];
9167
9168 if (!rdev->ops->update_ft_ies)
9169 return -EOPNOTSUPP;
9170
9171 if (!info->attrs[NL80211_ATTR_MDID] ||
9172 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9173 return -EINVAL;
9174
9175 memset(&ft_params, 0, sizeof(ft_params));
9176 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9177 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9178 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9179
9180 return rdev_update_ft_ies(rdev, dev, &ft_params);
9181}
9182
5de17984
AS		 9183static int nl80211_crit_protocol_start(struct sk_buff *skb,
9184 struct genl_info *info)
9185{
9186 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9187 struct wireless_dev *wdev = info->user_ptr[1];
9188 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9189 u16 duration;
9190 int ret;
9191
9192 if (!rdev->ops->crit_proto_start)
9193 return -EOPNOTSUPP;
9194
9195 if (WARN_ON(!rdev->ops->crit_proto_stop))
9196 return -EINVAL;
9197
9198 if (rdev->crit_proto_nlportid)
9199 return -EBUSY;
9200
9201 /* determine protocol if provided */
9202 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9203 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9204
9205 if (proto >= NUM_NL80211_CRIT_PROTO)
9206 return -EINVAL;
9207
9208 /* timeout must be provided */
9209 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9210 return -EINVAL;
9211
9212 duration =
9213 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9214
9215 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9216 return -ERANGE;
9217
9218 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9219 if (!ret)
9220 rdev->crit_proto_nlportid = info->snd_portid;
9221
9222 return ret;
9223}
9224
9225static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9226 struct genl_info *info)
9227{
9228 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9229 struct wireless_dev *wdev = info->user_ptr[1];
9230
9231 if (!rdev->ops->crit_proto_stop)
9232 return -EOPNOTSUPP;
9233
9234 if (rdev->crit_proto_nlportid) {
9235 rdev->crit_proto_nlportid = 0;
9236 rdev_crit_proto_stop(rdev, wdev);
9237 }
9238 return 0;
9239}
9240
ad7e718c
JB		 9241static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9242{
9243 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9244 struct wireless_dev *wdev =
9245 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9246 int i, err;
9247 u32 vid, subcmd;
9248
9249 if (!rdev->wiphy.vendor_commands)
9250 return -EOPNOTSUPP;
9251
9252 if (IS_ERR(wdev)) {
9253 err = PTR_ERR(wdev);
9254 if (err != -EINVAL)
9255 return err;
9256 wdev = NULL;
9257 } else if (wdev->wiphy != &rdev->wiphy) {
9258 return -EINVAL;
9259 }
9260
9261 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9262 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9263 return -EINVAL;
9264
9265 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9266 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9267 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9268 const struct wiphy_vendor_command *vcmd;
9269 void *data = NULL;
9270 int len = 0;
9271
9272 vcmd = &rdev->wiphy.vendor_commands[i];
9273
9274 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9275 continue;
9276
9277 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9278 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9279 if (!wdev)
9280 return -EINVAL;
9281 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9282 !wdev->netdev)
9283 return -EINVAL;
9284
9285 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9286 if (wdev->netdev &&
9287 !netif_running(wdev->netdev))
9288 return -ENETDOWN;
9289 if (!wdev->netdev && !wdev->p2p_started)
9290 return -ENETDOWN;
9291 }
9292 } else {
9293 wdev = NULL;
9294 }
9295
9296 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9297 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9298 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9299 }
9300
9301 rdev->cur_cmd_info = info;
9302 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9303 data, len);
9304 rdev->cur_cmd_info = NULL;
9305 return err;
9306 }
9307
9308 return -EOPNOTSUPP;
9309}
9310
9311struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9312 enum nl80211_commands cmd,
9313 enum nl80211_attrs attr,
9314 int approxlen)
9315{
f26cbf40 9316 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9317
9318 if (WARN_ON(!rdev->cur_cmd_info))
9319 return NULL;
9320
9321 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9322 rdev->cur_cmd_info->snd_portid,
9323 rdev->cur_cmd_info->snd_seq,
567ffc35 9324 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9325}
9326EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9327
9328int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9329{
9330 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9331 void *hdr = ((void **)skb->cb)[1];
9332 struct nlattr *data = ((void **)skb->cb)[2];
9333
9334 if (WARN_ON(!rdev->cur_cmd_info)) {
9335 kfree_skb(skb);
9336 return -EINVAL;
9337 }
9338
9339 nla_nest_end(skb, data);
9340 genlmsg_end(skb, hdr);
9341 return genlmsg_reply(skb, rdev->cur_cmd_info);
9342}
9343EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9344
9345
fa9ffc74
KP		 9346static int nl80211_set_qos_map(struct sk_buff *skb,
9347 struct genl_info *info)
9348{
9349 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9350 struct cfg80211_qos_map *qos_map = NULL;
9351 struct net_device *dev = info->user_ptr[1];
9352 u8 *pos, len, num_des, des_len, des;
9353 int ret;
9354
9355 if (!rdev->ops->set_qos_map)
9356 return -EOPNOTSUPP;
9357
9358 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9359 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9360 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9361
9362 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9363 len > IEEE80211_QOS_MAP_LEN_MAX)
9364 return -EINVAL;
9365
9366 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9367 if (!qos_map)
9368 return -ENOMEM;
9369
9370 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9371 if (num_des) {
9372 des_len = num_des *
9373 sizeof(struct cfg80211_dscp_exception);
9374 memcpy(qos_map->dscp_exception, pos, des_len);
9375 qos_map->num_des = num_des;
9376 for (des = 0; des < num_des; des++) {
9377 if (qos_map->dscp_exception[des].up > 7) {
9378 kfree(qos_map);
9379 return -EINVAL;
9380 }
9381 }
9382 pos += des_len;
9383 }
9384 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9385 }
9386
9387 wdev_lock(dev->ieee80211_ptr);
9388 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9389 if (!ret)
9390 ret = rdev_set_qos_map(rdev, dev, qos_map);
9391 wdev_unlock(dev->ieee80211_ptr);
9392
9393 kfree(qos_map);
9394 return ret;
9395}
9396
4c476991
JB		 9397#define NL80211_FLAG_NEED_WIPHY 0x01
9398#define NL80211_FLAG_NEED_NETDEV 0x02
9399#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9400#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9401#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9402 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9403#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9404/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9405#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9406 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991 9407
f84f771d 9408static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9409 struct genl_info *info)
9410{
9411 struct cfg80211_registered_device *rdev;
89a54e48 9412 struct wireless_dev *wdev;
4c476991 9413 struct net_device *dev;
4c476991
JB		 9414 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9415
9416 if (rtnl)
9417 rtnl_lock();
9418
9419 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9420 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9421 if (IS_ERR(rdev)) {
9422 if (rtnl)
9423 rtnl_unlock();
9424 return PTR_ERR(rdev);
9425 }
9426 info->user_ptr[0] = rdev;
1bf614ef
JB		 9427 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9428 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9429 ASSERT_RTNL();
9430
89a54e48
JB		 9431 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9432 info->attrs);
9433 if (IS_ERR(wdev)) {
4c476991
JB		 9434 if (rtnl)
9435 rtnl_unlock();
89a54e48 9436 return PTR_ERR(wdev);
4c476991 9437 }
89a54e48 9438
89a54e48 9439 dev = wdev->netdev;
f26cbf40 9440 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 9441
1bf614ef
JB		 9442 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9443 if (!dev) {
1bf614ef
JB		 9444 if (rtnl)
9445 rtnl_unlock();
9446 return -EINVAL;
9447 }
9448
9449 info->user_ptr[1] = dev;
9450 } else {
9451 info->user_ptr[1] = wdev;
41265714 9452 }
1bf614ef
JB		 9453
9454 if (dev) {
9455 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9456 !netif_running(dev)) {
1bf614ef
JB		 9457 if (rtnl)
9458 rtnl_unlock();
9459 return -ENETDOWN;
9460 }
9461
9462 dev_hold(dev);
98104fde
JB		 9463 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9464 if (!wdev->p2p_started) {
98104fde
JB		 9465 if (rtnl)
9466 rtnl_unlock();
9467 return -ENETDOWN;
9468 }
41265714 9469 }
89a54e48 9470
4c476991 9471 info->user_ptr[0] = rdev;
4c476991
JB		 9472 }
9473
9474 return 0;
9475}
9476
f84f771d 9477static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9478 struct genl_info *info)
9479{
1bf614ef
JB		 9480 if (info->user_ptr[1]) {
9481 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9482 struct wireless_dev *wdev = info->user_ptr[1];
9483
9484 if (wdev->netdev)
9485 dev_put(wdev->netdev);
9486 } else {
9487 dev_put(info->user_ptr[1]);
9488 }
9489 }
4c476991
JB		 9490 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9491 rtnl_unlock();
9492}
9493
4534de83 9494static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9495 {
9496 .cmd = NL80211_CMD_GET_WIPHY,
9497 .doit = nl80211_get_wiphy,
9498 .dumpit = nl80211_dump_wiphy,
86e8cf98 9499 .done = nl80211_dump_wiphy_done,
55682965
JB		 9500 .policy = nl80211_policy,
9501 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9502 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9503 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9504 },
9505 {
9506 .cmd = NL80211_CMD_SET_WIPHY,
9507 .doit = nl80211_set_wiphy,
9508 .policy = nl80211_policy,
9509 .flags = GENL_ADMIN_PERM,
4c476991 9510 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9511 },
9512 {
9513 .cmd = NL80211_CMD_GET_INTERFACE,
9514 .doit = nl80211_get_interface,
9515 .dumpit = nl80211_dump_interface,
9516 .policy = nl80211_policy,
9517 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9518 .internal_flags = NL80211_FLAG_NEED_WDEV |
9519 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9520 },
9521 {
9522 .cmd = NL80211_CMD_SET_INTERFACE,
9523 .doit = nl80211_set_interface,
9524 .policy = nl80211_policy,
9525 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9526 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9527 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9528 },
9529 {
9530 .cmd = NL80211_CMD_NEW_INTERFACE,
9531 .doit = nl80211_new_interface,
9532 .policy = nl80211_policy,
9533 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9534 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9535 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9536 },
9537 {
9538 .cmd = NL80211_CMD_DEL_INTERFACE,
9539 .doit = nl80211_del_interface,
9540 .policy = nl80211_policy,
41ade00f 9541 .flags = GENL_ADMIN_PERM,
84efbb84 9542 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9543 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9544 },
9545 {
9546 .cmd = NL80211_CMD_GET_KEY,
9547 .doit = nl80211_get_key,
9548 .policy = nl80211_policy,
9549 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9550 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9551 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9552 },
9553 {
9554 .cmd = NL80211_CMD_SET_KEY,
9555 .doit = nl80211_set_key,
9556 .policy = nl80211_policy,
9557 .flags = GENL_ADMIN_PERM,
41265714 9558 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9559 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9560 },
9561 {
9562 .cmd = NL80211_CMD_NEW_KEY,
9563 .doit = nl80211_new_key,
9564 .policy = nl80211_policy,
9565 .flags = GENL_ADMIN_PERM,
41265714 9566 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9567 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9568 },
9569 {
9570 .cmd = NL80211_CMD_DEL_KEY,
9571 .doit = nl80211_del_key,
9572 .policy = nl80211_policy,
55682965 9573 .flags = GENL_ADMIN_PERM,
41265714 9574 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9575 NL80211_FLAG_NEED_RTNL,
55682965 9576 },
ed1b6cc7
JB		 9577 {
9578 .cmd = NL80211_CMD_SET_BEACON,
9579 .policy = nl80211_policy,
9580 .flags = GENL_ADMIN_PERM,
8860020e 9581 .doit = nl80211_set_beacon,
2b5f8b0b 9582 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9583 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9584 },
9585 {
8860020e 9586 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9587 .policy = nl80211_policy,
9588 .flags = GENL_ADMIN_PERM,
8860020e 9589 .doit = nl80211_start_ap,
2b5f8b0b 9590 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9591 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9592 },
9593 {
8860020e 9594 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9595 .policy = nl80211_policy,
9596 .flags = GENL_ADMIN_PERM,
8860020e 9597 .doit = nl80211_stop_ap,
2b5f8b0b 9598 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9599 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9600 },
5727ef1b
JB		 9601 {
9602 .cmd = NL80211_CMD_GET_STATION,
9603 .doit = nl80211_get_station,
2ec600d6 9604 .dumpit = nl80211_dump_station,
5727ef1b 9605 .policy = nl80211_policy,
4c476991
JB		 9606 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9607 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9608 },
9609 {
9610 .cmd = NL80211_CMD_SET_STATION,
9611 .doit = nl80211_set_station,
9612 .policy = nl80211_policy,
9613 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9614 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9615 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9616 },
9617 {
9618 .cmd = NL80211_CMD_NEW_STATION,
9619 .doit = nl80211_new_station,
9620 .policy = nl80211_policy,
9621 .flags = GENL_ADMIN_PERM,
41265714 9622 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9623 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9624 },
9625 {
9626 .cmd = NL80211_CMD_DEL_STATION,
9627 .doit = nl80211_del_station,
9628 .policy = nl80211_policy,
2ec600d6 9629 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9630 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9631 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9632 },
9633 {
9634 .cmd = NL80211_CMD_GET_MPATH,
9635 .doit = nl80211_get_mpath,
9636 .dumpit = nl80211_dump_mpath,
9637 .policy = nl80211_policy,
9638 .flags = GENL_ADMIN_PERM,
41265714 9639 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9640 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9641 },
9642 {
9643 .cmd = NL80211_CMD_SET_MPATH,
9644 .doit = nl80211_set_mpath,
9645 .policy = nl80211_policy,
9646 .flags = GENL_ADMIN_PERM,
41265714 9647 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9648 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9649 },
9650 {
9651 .cmd = NL80211_CMD_NEW_MPATH,
9652 .doit = nl80211_new_mpath,
9653 .policy = nl80211_policy,
9654 .flags = GENL_ADMIN_PERM,
41265714 9655 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9656 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9657 },
9658 {
9659 .cmd = NL80211_CMD_DEL_MPATH,
9660 .doit = nl80211_del_mpath,
9661 .policy = nl80211_policy,
9f1ba906 9662 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9663 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9664 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9665 },
9666 {
9667 .cmd = NL80211_CMD_SET_BSS,
9668 .doit = nl80211_set_bss,
9669 .policy = nl80211_policy,
b2e1b302 9670 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9671 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9672 NL80211_FLAG_NEED_RTNL,
b2e1b302 9673 },
f130347c
LR		 9674 {
9675 .cmd = NL80211_CMD_GET_REG,
9676 .doit = nl80211_get_reg,
9677 .policy = nl80211_policy,
5fe231e8 9678 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9679 /* can be retrieved by unprivileged users */
9680 },
b2e1b302
LR		 9681 {
9682 .cmd = NL80211_CMD_SET_REG,
9683 .doit = nl80211_set_reg,
9684 .policy = nl80211_policy,
9685 .flags = GENL_ADMIN_PERM,
5fe231e8 9686 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9687 },
9688 {
9689 .cmd = NL80211_CMD_REQ_SET_REG,
9690 .doit = nl80211_req_set_reg,
9691 .policy = nl80211_policy,
93da9cc1 9692 .flags = GENL_ADMIN_PERM,
9693 },
9694 {
24bdd9f4
JC		 9695 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9696 .doit = nl80211_get_mesh_config,
93da9cc1 9697 .policy = nl80211_policy,
9698 /* can be retrieved by unprivileged users */
2b5f8b0b 9699 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9700 NL80211_FLAG_NEED_RTNL,
93da9cc1 9701 },
9702 {
24bdd9f4
JC		 9703 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9704 .doit = nl80211_update_mesh_config,
93da9cc1 9705 .policy = nl80211_policy,
9aed3cc1 9706 .flags = GENL_ADMIN_PERM,
29cbe68c 9707 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9708 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9709 },
2a519311
JB		 9710 {
9711 .cmd = NL80211_CMD_TRIGGER_SCAN,
9712 .doit = nl80211_trigger_scan,
9713 .policy = nl80211_policy,
9714 .flags = GENL_ADMIN_PERM,
fd014284 9715 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9716 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9717 },
9718 {
9719 .cmd = NL80211_CMD_GET_SCAN,
9720 .policy = nl80211_policy,
9721 .dumpit = nl80211_dump_scan,
9722 },
807f8a8c
LC		 9723 {
9724 .cmd = NL80211_CMD_START_SCHED_SCAN,
9725 .doit = nl80211_start_sched_scan,
9726 .policy = nl80211_policy,
9727 .flags = GENL_ADMIN_PERM,
9728 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9729 NL80211_FLAG_NEED_RTNL,
9730 },
9731 {
9732 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9733 .doit = nl80211_stop_sched_scan,
9734 .policy = nl80211_policy,
9735 .flags = GENL_ADMIN_PERM,
9736 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9737 NL80211_FLAG_NEED_RTNL,
9738 },
636a5d36
JM		 9739 {
9740 .cmd = NL80211_CMD_AUTHENTICATE,
9741 .doit = nl80211_authenticate,
9742 .policy = nl80211_policy,
9743 .flags = GENL_ADMIN_PERM,
41265714 9744 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9745 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9746 },
9747 {
9748 .cmd = NL80211_CMD_ASSOCIATE,
9749 .doit = nl80211_associate,
9750 .policy = nl80211_policy,
9751 .flags = GENL_ADMIN_PERM,
41265714 9752 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9753 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9754 },
9755 {
9756 .cmd = NL80211_CMD_DEAUTHENTICATE,
9757 .doit = nl80211_deauthenticate,
9758 .policy = nl80211_policy,
9759 .flags = GENL_ADMIN_PERM,
41265714 9760 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9761 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9762 },
9763 {
9764 .cmd = NL80211_CMD_DISASSOCIATE,
9765 .doit = nl80211_disassociate,
9766 .policy = nl80211_policy,
9767 .flags = GENL_ADMIN_PERM,
41265714 9768 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9769 NL80211_FLAG_NEED_RTNL,
636a5d36 9770 },
04a773ad
JB		 9771 {
9772 .cmd = NL80211_CMD_JOIN_IBSS,
9773 .doit = nl80211_join_ibss,
9774 .policy = nl80211_policy,
9775 .flags = GENL_ADMIN_PERM,
41265714 9776 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9777 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9778 },
9779 {
9780 .cmd = NL80211_CMD_LEAVE_IBSS,
9781 .doit = nl80211_leave_ibss,
9782 .policy = nl80211_policy,
9783 .flags = GENL_ADMIN_PERM,
41265714 9784 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9785 NL80211_FLAG_NEED_RTNL,
04a773ad 9786 },
aff89a9b
JB		 9787#ifdef CONFIG_NL80211_TESTMODE
9788 {
9789 .cmd = NL80211_CMD_TESTMODE,
9790 .doit = nl80211_testmode_do,
71063f0e 9791 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9792 .policy = nl80211_policy,
9793 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9794 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9795 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9796 },
9797#endif
b23aa676
SO		 9798 {
9799 .cmd = NL80211_CMD_CONNECT,
9800 .doit = nl80211_connect,
9801 .policy = nl80211_policy,
9802 .flags = GENL_ADMIN_PERM,
41265714 9803 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9804 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9805 },
9806 {
9807 .cmd = NL80211_CMD_DISCONNECT,
9808 .doit = nl80211_disconnect,
9809 .policy = nl80211_policy,
9810 .flags = GENL_ADMIN_PERM,
41265714 9811 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9812 NL80211_FLAG_NEED_RTNL,
b23aa676 9813 },
463d0183
JB		 9814 {
9815 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9816 .doit = nl80211_wiphy_netns,
9817 .policy = nl80211_policy,
9818 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9819 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9820 NL80211_FLAG_NEED_RTNL,
463d0183 9821 },
61fa713c
HS		 9822 {
9823 .cmd = NL80211_CMD_GET_SURVEY,
9824 .policy = nl80211_policy,
9825 .dumpit = nl80211_dump_survey,
9826 },
67fbb16b
SO		 9827 {
9828 .cmd = NL80211_CMD_SET_PMKSA,
9829 .doit = nl80211_setdel_pmksa,
9830 .policy = nl80211_policy,
9831 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9832 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9833 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9834 },
9835 {
9836 .cmd = NL80211_CMD_DEL_PMKSA,
9837 .doit = nl80211_setdel_pmksa,
9838 .policy = nl80211_policy,
9839 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9840 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9841 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9842 },
9843 {
9844 .cmd = NL80211_CMD_FLUSH_PMKSA,
9845 .doit = nl80211_flush_pmksa,
9846 .policy = nl80211_policy,
9847 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9848 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9849 NL80211_FLAG_NEED_RTNL,
67fbb16b 9850 },
9588bbd5
JM		 9851 {
9852 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9853 .doit = nl80211_remain_on_channel,
9854 .policy = nl80211_policy,
9855 .flags = GENL_ADMIN_PERM,
71bbc994 9856 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9857 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9858 },
9859 {
9860 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9861 .doit = nl80211_cancel_remain_on_channel,
9862 .policy = nl80211_policy,
9863 .flags = GENL_ADMIN_PERM,
71bbc994 9864 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9865 NL80211_FLAG_NEED_RTNL,
9588bbd5 9866 },
13ae75b1
JM		 9867 {
9868 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9869 .doit = nl80211_set_tx_bitrate_mask,
9870 .policy = nl80211_policy,
9871 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9872 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9873 NL80211_FLAG_NEED_RTNL,
13ae75b1 9874 },
026331c4 9875 {
2e161f78
JB		 9876 .cmd = NL80211_CMD_REGISTER_FRAME,
9877 .doit = nl80211_register_mgmt,
026331c4
JM		 9878 .policy = nl80211_policy,
9879 .flags = GENL_ADMIN_PERM,
71bbc994 9880 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9881 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9882 },
9883 {
2e161f78
JB		 9884 .cmd = NL80211_CMD_FRAME,
9885 .doit = nl80211_tx_mgmt,
026331c4 9886 .policy = nl80211_policy,
f7ca38df 9887 .flags = GENL_ADMIN_PERM,
71bbc994 9888 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9889 NL80211_FLAG_NEED_RTNL,
9890 },
9891 {
9892 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9893 .doit = nl80211_tx_mgmt_cancel_wait,
9894 .policy = nl80211_policy,
026331c4 9895 .flags = GENL_ADMIN_PERM,
71bbc994 9896 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9897 NL80211_FLAG_NEED_RTNL,
026331c4 9898 },
ffb9eb3d
KV		 9899 {
9900 .cmd = NL80211_CMD_SET_POWER_SAVE,
9901 .doit = nl80211_set_power_save,
9902 .policy = nl80211_policy,
9903 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9904 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9905 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9906 },
9907 {
9908 .cmd = NL80211_CMD_GET_POWER_SAVE,
9909 .doit = nl80211_get_power_save,
9910 .policy = nl80211_policy,
9911 /* can be retrieved by unprivileged users */
4c476991
JB		 9912 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9913 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9914 },
d6dc1a38
JO		 9915 {
9916 .cmd = NL80211_CMD_SET_CQM,
9917 .doit = nl80211_set_cqm,
9918 .policy = nl80211_policy,
9919 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9920 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9921 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9922 },
f444de05
JB		 9923 {
9924 .cmd = NL80211_CMD_SET_CHANNEL,
9925 .doit = nl80211_set_channel,
9926 .policy = nl80211_policy,
9927 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9928 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9929 NL80211_FLAG_NEED_RTNL,
f444de05 9930 },
e8347eba
BJ		 9931 {
9932 .cmd = NL80211_CMD_SET_WDS_PEER,
9933 .doit = nl80211_set_wds_peer,
9934 .policy = nl80211_policy,
9935 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9936 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9937 NL80211_FLAG_NEED_RTNL,
e8347eba 9938 },
29cbe68c
JB		 9939 {
9940 .cmd = NL80211_CMD_JOIN_MESH,
9941 .doit = nl80211_join_mesh,
9942 .policy = nl80211_policy,
9943 .flags = GENL_ADMIN_PERM,
9944 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9945 NL80211_FLAG_NEED_RTNL,
9946 },
9947 {
9948 .cmd = NL80211_CMD_LEAVE_MESH,
9949 .doit = nl80211_leave_mesh,
9950 .policy = nl80211_policy,
9951 .flags = GENL_ADMIN_PERM,
9952 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9953 NL80211_FLAG_NEED_RTNL,
9954 },
dfb89c56 9955#ifdef CONFIG_PM
ff1b6e69
JB		 9956 {
9957 .cmd = NL80211_CMD_GET_WOWLAN,
9958 .doit = nl80211_get_wowlan,
9959 .policy = nl80211_policy,
9960 /* can be retrieved by unprivileged users */
9961 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9962 NL80211_FLAG_NEED_RTNL,
9963 },
9964 {
9965 .cmd = NL80211_CMD_SET_WOWLAN,
9966 .doit = nl80211_set_wowlan,
9967 .policy = nl80211_policy,
9968 .flags = GENL_ADMIN_PERM,
9969 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9970 NL80211_FLAG_NEED_RTNL,
9971 },
dfb89c56 9972#endif
e5497d76
JB		 9973 {
9974 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9975 .doit = nl80211_set_rekey_data,
9976 .policy = nl80211_policy,
9977 .flags = GENL_ADMIN_PERM,
9978 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9979 NL80211_FLAG_NEED_RTNL,
9980 },
109086ce
AN		 9981 {
9982 .cmd = NL80211_CMD_TDLS_MGMT,
9983 .doit = nl80211_tdls_mgmt,
9984 .policy = nl80211_policy,
9985 .flags = GENL_ADMIN_PERM,
9986 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9987 NL80211_FLAG_NEED_RTNL,
9988 },
9989 {
9990 .cmd = NL80211_CMD_TDLS_OPER,
9991 .doit = nl80211_tdls_oper,
9992 .policy = nl80211_policy,
9993 .flags = GENL_ADMIN_PERM,
9994 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9995 NL80211_FLAG_NEED_RTNL,
9996 },
28946da7
JB		 9997 {
9998 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9999 .doit = nl80211_register_unexpected_frame,
10000 .policy = nl80211_policy,
10001 .flags = GENL_ADMIN_PERM,
10002 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10003 NL80211_FLAG_NEED_RTNL,
10004 },
7f6cf311
JB		 10005 {
10006 .cmd = NL80211_CMD_PROBE_CLIENT,
10007 .doit = nl80211_probe_client,
10008 .policy = nl80211_policy,
10009 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10010 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 10011 NL80211_FLAG_NEED_RTNL,
10012 },
5e760230
JB		 10013 {
10014 .cmd = NL80211_CMD_REGISTER_BEACONS,
10015 .doit = nl80211_register_beacons,
10016 .policy = nl80211_policy,
10017 .flags = GENL_ADMIN_PERM,
10018 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10019 NL80211_FLAG_NEED_RTNL,
10020 },
1d9d9213
SW		 10021 {
10022 .cmd = NL80211_CMD_SET_NOACK_MAP,
10023 .doit = nl80211_set_noack_map,
10024 .policy = nl80211_policy,
10025 .flags = GENL_ADMIN_PERM,
10026 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10027 NL80211_FLAG_NEED_RTNL,
10028 },
98104fde
JB		 10029 {
10030 .cmd = NL80211_CMD_START_P2P_DEVICE,
10031 .doit = nl80211_start_p2p_device,
10032 .policy = nl80211_policy,
10033 .flags = GENL_ADMIN_PERM,
10034 .internal_flags = NL80211_FLAG_NEED_WDEV |
10035 NL80211_FLAG_NEED_RTNL,
10036 },
10037 {
10038 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10039 .doit = nl80211_stop_p2p_device,
10040 .policy = nl80211_policy,
10041 .flags = GENL_ADMIN_PERM,
10042 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10043 NL80211_FLAG_NEED_RTNL,
10044 },
f4e583c8
AQ		 10045 {
10046 .cmd = NL80211_CMD_SET_MCAST_RATE,
10047 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10048 .policy = nl80211_policy,
10049 .flags = GENL_ADMIN_PERM,
10050 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10051 NL80211_FLAG_NEED_RTNL,
10052 },
10053 {
10054 .cmd = NL80211_CMD_SET_MAC_ACL,
10055 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10056 .policy = nl80211_policy,
10057 .flags = GENL_ADMIN_PERM,
10058 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10059 NL80211_FLAG_NEED_RTNL,
10060 },
04f39047
SW		 10061 {
10062 .cmd = NL80211_CMD_RADAR_DETECT,
10063 .doit = nl80211_start_radar_detection,
10064 .policy = nl80211_policy,
10065 .flags = GENL_ADMIN_PERM,
10066 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10067 NL80211_FLAG_NEED_RTNL,
10068 },
3713b4e3
JB		 10069 {
10070 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10071 .doit = nl80211_get_protocol_features,
10072 .policy = nl80211_policy,
10073 },
355199e0
JM		 10074 {
10075 .cmd = NL80211_CMD_UPDATE_FT_IES,
10076 .doit = nl80211_update_ft_ies,
10077 .policy = nl80211_policy,
10078 .flags = GENL_ADMIN_PERM,
10079 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10080 NL80211_FLAG_NEED_RTNL,
10081 },
5de17984
AS		 10082 {
10083 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10084 .doit = nl80211_crit_protocol_start,
10085 .policy = nl80211_policy,
10086 .flags = GENL_ADMIN_PERM,
10087 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10088 NL80211_FLAG_NEED_RTNL,
10089 },
10090 {
10091 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10092 .doit = nl80211_crit_protocol_stop,
10093 .policy = nl80211_policy,
10094 .flags = GENL_ADMIN_PERM,
10095 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10096 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10097 },
10098 {
10099 .cmd = NL80211_CMD_GET_COALESCE,
10100 .doit = nl80211_get_coalesce,
10101 .policy = nl80211_policy,
10102 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10103 NL80211_FLAG_NEED_RTNL,
10104 },
10105 {
10106 .cmd = NL80211_CMD_SET_COALESCE,
10107 .doit = nl80211_set_coalesce,
10108 .policy = nl80211_policy,
10109 .flags = GENL_ADMIN_PERM,
10110 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10111 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10112 },
10113 {
10114 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10115 .doit = nl80211_channel_switch,
10116 .policy = nl80211_policy,
10117 .flags = GENL_ADMIN_PERM,
10118 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10119 NL80211_FLAG_NEED_RTNL,
10120 },
ad7e718c
JB		 10121 {
10122 .cmd = NL80211_CMD_VENDOR,
10123 .doit = nl80211_vendor_cmd,
10124 .policy = nl80211_policy,
10125 .flags = GENL_ADMIN_PERM,
10126 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10127 NL80211_FLAG_NEED_RTNL,
10128 },
fa9ffc74
KP		 10129 {
10130 .cmd = NL80211_CMD_SET_QOS_MAP,
10131 .doit = nl80211_set_qos_map,
10132 .policy = nl80211_policy,
10133 .flags = GENL_ADMIN_PERM,
10134 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10135 NL80211_FLAG_NEED_RTNL,
10136 },
55682965 10137};
9588bbd5 10138
55682965
JB		 10139/* notification functions */
10140
3bb20556
JB		 10141void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10142 enum nl80211_commands cmd)
55682965
JB		 10143{
10144 struct sk_buff *msg;
86e8cf98 10145 struct nl80211_dump_wiphy_state state = {};
55682965 10146
3bb20556
JB		 10147 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10148 cmd != NL80211_CMD_DEL_WIPHY);
10149
fd2120ca 10150 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10151 if (!msg)
10152 return;
10153
3bb20556 10154 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10155 nlmsg_free(msg);
10156 return;
10157 }
10158
68eb5503 10159 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10160 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10161}
10162
362a415d
JB		 10163static int nl80211_add_scan_req(struct sk_buff *msg,
10164 struct cfg80211_registered_device *rdev)
10165{
10166 struct cfg80211_scan_request *req = rdev->scan_req;
10167 struct nlattr *nest;
10168 int i;
10169
10170 if (WARN_ON(!req))
10171 return 0;
10172
10173 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10174 if (!nest)
10175 goto nla_put_failure;
9360ffd1
DM		 10176 for (i = 0; i < req->n_ssids; i++) {
10177 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10178 goto nla_put_failure;
10179 }
362a415d
JB		 10180 nla_nest_end(msg, nest);
10181
10182 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10183 if (!nest)
10184 goto nla_put_failure;
9360ffd1
DM		 10185 for (i = 0; i < req->n_channels; i++) {
10186 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10187 goto nla_put_failure;
10188 }
362a415d
JB		 10189 nla_nest_end(msg, nest);
10190
9360ffd1
DM		 10191 if (req->ie &&
10192 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10193 goto nla_put_failure;
362a415d 10194
ae917c9f
JB		 10195 if (req->flags &&
10196 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10197 goto nla_put_failure;
ed473771 10198
362a415d
JB		 10199 return 0;
10200 nla_put_failure:
10201 return -ENOBUFS;
10202}
10203
a538e2d5
JB		 10204static int nl80211_send_scan_msg(struct sk_buff *msg,
10205 struct cfg80211_registered_device *rdev,
fd014284 10206 struct wireless_dev *wdev,
15e47304 10207 u32 portid, u32 seq, int flags,
a538e2d5 10208 u32 cmd)
2a519311
JB		 10209{
10210 void *hdr;
10211
15e47304 10212 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10213 if (!hdr)
10214 return -1;
10215
9360ffd1 10216 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10217 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10218 wdev->netdev->ifindex)) ||
10219 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10220 goto nla_put_failure;
2a519311 10221
362a415d
JB		 10222 /* ignore errors and send incomplete event anyway */
10223 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10224
10225 return genlmsg_end(msg, hdr);
10226
10227 nla_put_failure:
10228 genlmsg_cancel(msg, hdr);
10229 return -EMSGSIZE;
10230}
10231
807f8a8c
LC		 10232static int
10233nl80211_send_sched_scan_msg(struct sk_buff *msg,
10234 struct cfg80211_registered_device *rdev,
10235 struct net_device *netdev,
15e47304 10236 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10237{
10238 void *hdr;
10239
15e47304 10240 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10241 if (!hdr)
10242 return -1;
10243
9360ffd1
DM		 10244 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10245 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10246 goto nla_put_failure;
807f8a8c
LC		 10247
10248 return genlmsg_end(msg, hdr);
10249
10250 nla_put_failure:
10251 genlmsg_cancel(msg, hdr);
10252 return -EMSGSIZE;
10253}
10254
a538e2d5 10255void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10256 struct wireless_dev *wdev)
a538e2d5
JB		 10257{
10258 struct sk_buff *msg;
10259
58050fce 10260 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10261 if (!msg)
10262 return;
10263
fd014284 10264 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10265 NL80211_CMD_TRIGGER_SCAN) < 0) {
10266 nlmsg_free(msg);
10267 return;
10268 }
10269
68eb5503 10270 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10271 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10272}
10273
f9d15d16
JB		 10274struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10275 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10276{
10277 struct sk_buff *msg;
10278
fd2120ca 10279 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10280 if (!msg)
f9d15d16 10281 return NULL;
2a519311 10282
fd014284 10283 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10284 aborted ? NL80211_CMD_SCAN_ABORTED :
10285 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10286 nlmsg_free(msg);
f9d15d16 10287 return NULL;
2a519311
JB		 10288 }
10289
f9d15d16 10290 return msg;
2a519311
JB		 10291}
10292
f9d15d16
JB		 10293void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10294 struct sk_buff *msg)
2a519311 10295{
2a519311
JB		 10296 if (!msg)
10297 return;
10298
68eb5503 10299 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10300 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10301}
10302
807f8a8c
LC		 10303void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10304 struct net_device *netdev)
10305{
10306 struct sk_buff *msg;
10307
10308 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10309 if (!msg)
10310 return;
10311
10312 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10313 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10314 nlmsg_free(msg);
10315 return;
10316 }
10317
68eb5503 10318 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10319 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10320}
10321
10322void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10323 struct net_device *netdev, u32 cmd)
10324{
10325 struct sk_buff *msg;
10326
58050fce 10327 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10328 if (!msg)
10329 return;
10330
10331 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10332 nlmsg_free(msg);
10333 return;
10334 }
10335
68eb5503 10336 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10337 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10338}
10339
73d54c9e
LR		 10340/*
10341 * This can happen on global regulatory changes or device specific settings
10342 * based on custom world regulatory domains.
10343 */
10344void nl80211_send_reg_change_event(struct regulatory_request *request)
10345{
10346 struct sk_buff *msg;
10347 void *hdr;
10348
fd2120ca 10349 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10350 if (!msg)
10351 return;
10352
10353 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10354 if (!hdr) {
10355 nlmsg_free(msg);
10356 return;
10357 }
10358
10359 /* Userspace can always count this one always being set */
9360ffd1
DM		 10360 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10361 goto nla_put_failure;
10362
10363 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10364 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10365 NL80211_REGDOM_TYPE_WORLD))
10366 goto nla_put_failure;
10367 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10368 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10369 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10370 goto nla_put_failure;
10371 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10372 request->intersect) {
10373 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10374 NL80211_REGDOM_TYPE_INTERSECTION))
10375 goto nla_put_failure;
10376 } else {
10377 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10378 NL80211_REGDOM_TYPE_COUNTRY) ||
10379 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10380 request->alpha2))
10381 goto nla_put_failure;
10382 }
10383
f4173766 10384 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10385 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10386 goto nla_put_failure;
73d54c9e 10387
3b7b72ee 10388 genlmsg_end(msg, hdr);
73d54c9e 10389
bc43b28c 10390 rcu_read_lock();
68eb5503 10391 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10392 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10393 rcu_read_unlock();
73d54c9e
LR		 10394
10395 return;
10396
10397nla_put_failure:
10398 genlmsg_cancel(msg, hdr);
10399 nlmsg_free(msg);
10400}
10401
6039f6d2
JM		 10402static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10403 struct net_device *netdev,
10404 const u8 *buf, size_t len,
e6d6e342 10405 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 10406{
10407 struct sk_buff *msg;
10408 void *hdr;
10409
e6d6e342 10410 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10411 if (!msg)
10412 return;
10413
10414 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10415 if (!hdr) {
10416 nlmsg_free(msg);
10417 return;
10418 }
10419
9360ffd1
DM		 10420 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10421 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10422 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10423 goto nla_put_failure;
6039f6d2 10424
3b7b72ee 10425 genlmsg_end(msg, hdr);
6039f6d2 10426
68eb5503 10427 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10428 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10429 return;
10430
10431 nla_put_failure:
10432 genlmsg_cancel(msg, hdr);
10433 nlmsg_free(msg);
10434}
10435
10436void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10437 struct net_device *netdev, const u8 *buf,
10438 size_t len, gfp_t gfp)
6039f6d2
JM		 10439{
10440 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10441 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 10442}
10443
10444void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10445 struct net_device *netdev, const u8 *buf,
e6d6e342 10446 size_t len, gfp_t gfp)
6039f6d2 10447{
e6d6e342
JB		 10448 nl80211_send_mlme_event(rdev, netdev, buf, len,
10449 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 10450}
10451
53b46b84 10452void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10453 struct net_device *netdev, const u8 *buf,
10454 size_t len, gfp_t gfp)
6039f6d2
JM		 10455{
10456 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10457 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 10458}
10459
53b46b84
JM		 10460void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10461 struct net_device *netdev, const u8 *buf,
e6d6e342 10462 size_t len, gfp_t gfp)
6039f6d2
JM		 10463{
10464 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10465 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 10466}
10467
6ff57cf8
JB		 10468void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10469 size_t len)
cf4e594e 10470{
947add36
JB		 10471 struct wireless_dev *wdev = dev->ieee80211_ptr;
10472 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10473 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 10474 const struct ieee80211_mgmt *mgmt = (void *)buf;
10475 u32 cmd;
947add36 10476
6ff57cf8
JB		 10477 if (WARN_ON(len < 2))
10478 return;
cf4e594e 10479
6ff57cf8
JB		 10480 if (ieee80211_is_deauth(mgmt->frame_control))
10481 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10482 else
10483 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10484
6ff57cf8
JB		 10485 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10486 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 10487}
6ff57cf8 10488EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10489
1b06bb40
LR		 10490static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10491 struct net_device *netdev, int cmd,
e6d6e342 10492 const u8 *addr, gfp_t gfp)
1965c853
JM		 10493{
10494 struct sk_buff *msg;
10495 void *hdr;
10496
e6d6e342 10497 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 10498 if (!msg)
10499 return;
10500
10501 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10502 if (!hdr) {
10503 nlmsg_free(msg);
10504 return;
10505 }
10506
9360ffd1
DM		 10507 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10508 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10509 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10510 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10511 goto nla_put_failure;
1965c853 10512
3b7b72ee 10513 genlmsg_end(msg, hdr);
1965c853 10514
68eb5503 10515 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10516 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 10517 return;
10518
10519 nla_put_failure:
10520 genlmsg_cancel(msg, hdr);
10521 nlmsg_free(msg);
10522}
10523
10524void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10525 struct net_device *netdev, const u8 *addr,
10526 gfp_t gfp)
1965c853
JM		 10527{
10528 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 10529 addr, gfp);
1965c853
JM		 10530}
10531
10532void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10533 struct net_device *netdev, const u8 *addr,
10534 gfp_t gfp)
1965c853 10535{
e6d6e342
JB		 10536 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10537 addr, gfp);
1965c853
JM		 10538}
10539
b23aa676
SO		 10540void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10541 struct net_device *netdev, const u8 *bssid,
10542 const u8 *req_ie, size_t req_ie_len,
10543 const u8 *resp_ie, size_t resp_ie_len,
10544 u16 status, gfp_t gfp)
10545{
10546 struct sk_buff *msg;
10547 void *hdr;
10548
58050fce 10549 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10550 if (!msg)
10551 return;
10552
10553 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10554 if (!hdr) {
10555 nlmsg_free(msg);
10556 return;
10557 }
10558
9360ffd1
DM		 10559 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10560 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10561 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10562 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10563 (req_ie &&
10564 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10565 (resp_ie &&
10566 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10567 goto nla_put_failure;
b23aa676 10568
3b7b72ee 10569 genlmsg_end(msg, hdr);
b23aa676 10570
68eb5503 10571 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10572 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10573 return;
10574
10575 nla_put_failure:
10576 genlmsg_cancel(msg, hdr);
10577 nlmsg_free(msg);
10578
10579}
10580
10581void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10582 struct net_device *netdev, const u8 *bssid,
10583 const u8 *req_ie, size_t req_ie_len,
10584 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10585{
10586 struct sk_buff *msg;
10587 void *hdr;
10588
58050fce 10589 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10590 if (!msg)
10591 return;
10592
10593 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10594 if (!hdr) {
10595 nlmsg_free(msg);
10596 return;
10597 }
10598
9360ffd1
DM		 10599 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10600 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10601 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10602 (req_ie &&
10603 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10604 (resp_ie &&
10605 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10606 goto nla_put_failure;
b23aa676 10607
3b7b72ee 10608 genlmsg_end(msg, hdr);
b23aa676 10609
68eb5503 10610 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10611 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10612 return;
10613
10614 nla_put_failure:
10615 genlmsg_cancel(msg, hdr);
10616 nlmsg_free(msg);
10617
10618}
10619
10620void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10621 struct net_device *netdev, u16 reason,
667503dd 10622 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10623{
10624 struct sk_buff *msg;
10625 void *hdr;
10626
58050fce 10627 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10628 if (!msg)
10629 return;
10630
10631 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10632 if (!hdr) {
10633 nlmsg_free(msg);
10634 return;
10635 }
10636
9360ffd1
DM		 10637 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10638 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10639 (from_ap && reason &&
10640 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10641 (from_ap &&
10642 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10643 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10644 goto nla_put_failure;
b23aa676 10645
3b7b72ee 10646 genlmsg_end(msg, hdr);
b23aa676 10647
68eb5503 10648 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10649 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 10650 return;
10651
10652 nla_put_failure:
10653 genlmsg_cancel(msg, hdr);
10654 nlmsg_free(msg);
10655
10656}
10657
04a773ad
JB		 10658void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10659 struct net_device *netdev, const u8 *bssid,
10660 gfp_t gfp)
10661{
10662 struct sk_buff *msg;
10663 void *hdr;
10664
fd2120ca 10665 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10666 if (!msg)
10667 return;
10668
10669 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10670 if (!hdr) {
10671 nlmsg_free(msg);
10672 return;
10673 }
10674
9360ffd1
DM		 10675 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10676 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10677 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10678 goto nla_put_failure;
04a773ad 10679
3b7b72ee 10680 genlmsg_end(msg, hdr);
04a773ad 10681
68eb5503 10682 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10683 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 10684 return;
10685
10686 nla_put_failure:
10687 genlmsg_cancel(msg, hdr);
10688 nlmsg_free(msg);
10689}
10690
947add36
JB		 10691void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10692 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10693{
947add36 10694 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10695 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 10696 struct sk_buff *msg;
10697 void *hdr;
10698
947add36
JB		 10699 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10700 return;
10701
10702 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10703
c93b5e71
JC		 10704 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10705 if (!msg)
10706 return;
10707
10708 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10709 if (!hdr) {
10710 nlmsg_free(msg);
10711 return;
10712 }
10713
9360ffd1 10714 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10715 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10716 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10717 (ie_len && ie &&
10718 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10719 goto nla_put_failure;
c93b5e71 10720
3b7b72ee 10721 genlmsg_end(msg, hdr);
c93b5e71 10722
68eb5503 10723 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10724 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 10725 return;
10726
10727 nla_put_failure:
10728 genlmsg_cancel(msg, hdr);
10729 nlmsg_free(msg);
10730}
947add36 10731EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10732
a3b8b056
JM		 10733void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10734 struct net_device *netdev, const u8 *addr,
10735 enum nl80211_key_type key_type, int key_id,
e6d6e342 10736 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 10737{
10738 struct sk_buff *msg;
10739 void *hdr;
10740
e6d6e342 10741 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 10742 if (!msg)
10743 return;
10744
10745 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10746 if (!hdr) {
10747 nlmsg_free(msg);
10748 return;
10749 }
10750
9360ffd1
DM		 10751 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10752 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10753 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10754 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10755 (key_id != -1 &&
10756 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10757 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10758 goto nla_put_failure;
a3b8b056 10759
3b7b72ee 10760 genlmsg_end(msg, hdr);
a3b8b056 10761
68eb5503 10762 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10763 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 10764 return;
10765
10766 nla_put_failure:
10767 genlmsg_cancel(msg, hdr);
10768 nlmsg_free(msg);
10769}
10770
6bad8766
LR		 10771void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10772 struct ieee80211_channel *channel_before,
10773 struct ieee80211_channel *channel_after)
10774{
10775 struct sk_buff *msg;
10776 void *hdr;
10777 struct nlattr *nl_freq;
10778
fd2120ca 10779 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10780 if (!msg)
10781 return;
10782
10783 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10784 if (!hdr) {
10785 nlmsg_free(msg);
10786 return;
10787 }
10788
10789 /*
10790 * Since we are applying the beacon hint to a wiphy we know its
10791 * wiphy_idx is valid
10792 */
9360ffd1
DM		 10793 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10794 goto nla_put_failure;
6bad8766
LR		 10795
10796 /* Before */
10797 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10798 if (!nl_freq)
10799 goto nla_put_failure;
cdc89b97 10800 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10801 goto nla_put_failure;
10802 nla_nest_end(msg, nl_freq);
10803
10804 /* After */
10805 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10806 if (!nl_freq)
10807 goto nla_put_failure;
cdc89b97 10808 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10809 goto nla_put_failure;
10810 nla_nest_end(msg, nl_freq);
10811
3b7b72ee 10812 genlmsg_end(msg, hdr);
6bad8766 10813
463d0183 10814 rcu_read_lock();
68eb5503 10815 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10816 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 10817 rcu_read_unlock();
6bad8766
LR		 10818
10819 return;
10820
10821nla_put_failure:
10822 genlmsg_cancel(msg, hdr);
10823 nlmsg_free(msg);
10824}
10825
9588bbd5
JM		 10826static void nl80211_send_remain_on_chan_event(
10827 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10828 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10829 struct ieee80211_channel *chan,
9588bbd5
JM		 10830 unsigned int duration, gfp_t gfp)
10831{
10832 struct sk_buff *msg;
10833 void *hdr;
10834
10835 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10836 if (!msg)
10837 return;
10838
10839 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10840 if (!hdr) {
10841 nlmsg_free(msg);
10842 return;
10843 }
10844
9360ffd1 10845 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10846 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10847 wdev->netdev->ifindex)) ||
00f53350 10848 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10849 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10850 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10851 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10852 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10853 goto nla_put_failure;
9588bbd5 10854
9360ffd1
DM		 10855 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10856 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10857 goto nla_put_failure;
9588bbd5 10858
3b7b72ee 10859 genlmsg_end(msg, hdr);
9588bbd5 10860
68eb5503 10861 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10862 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 10863 return;
10864
10865 nla_put_failure:
10866 genlmsg_cancel(msg, hdr);
10867 nlmsg_free(msg);
10868}
10869
947add36
JB		 10870void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10871 struct ieee80211_channel *chan,
10872 unsigned int duration, gfp_t gfp)
9588bbd5 10873{
947add36 10874 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10875 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10876
10877 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10878 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10879 rdev, wdev, cookie, chan,
42d97a59 10880 duration, gfp);
9588bbd5 10881}
947add36 10882EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10883
947add36
JB		 10884void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10885 struct ieee80211_channel *chan,
10886 gfp_t gfp)
9588bbd5 10887{
947add36 10888 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10889 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10890
10891 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10892 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10893 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10894}
947add36 10895EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10896
947add36
JB		 10897void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10898 struct station_info *sinfo, gfp_t gfp)
98b62183 10899{
947add36 10900 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10901 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 10902 struct sk_buff *msg;
10903
947add36
JB		 10904 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10905
58050fce 10906 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10907 if (!msg)
10908 return;
10909
66266b3a
JL		 10910 if (nl80211_send_station(msg, 0, 0, 0,
10911 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10912 nlmsg_free(msg);
10913 return;
10914 }
10915
68eb5503 10916 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10917 NL80211_MCGRP_MLME, gfp);
98b62183 10918}
947add36 10919EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10920
947add36 10921void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10922{
947add36 10923 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10924 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 10925 struct sk_buff *msg;
10926 void *hdr;
10927
947add36
JB		 10928 trace_cfg80211_del_sta(dev, mac_addr);
10929
58050fce 10930 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10931 if (!msg)
10932 return;
10933
10934 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10935 if (!hdr) {
10936 nlmsg_free(msg);
10937 return;
10938 }
10939
9360ffd1
DM		 10940 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10941 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10942 goto nla_put_failure;
ec15e68b 10943
3b7b72ee 10944 genlmsg_end(msg, hdr);
ec15e68b 10945
68eb5503 10946 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10947 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 10948 return;
10949
10950 nla_put_failure:
10951 genlmsg_cancel(msg, hdr);
10952 nlmsg_free(msg);
10953}
947add36 10954EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10955
947add36
JB		 10956void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10957 enum nl80211_connect_failed_reason reason,
10958 gfp_t gfp)
ed44a951 10959{
947add36 10960 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10961 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 10962 struct sk_buff *msg;
10963 void *hdr;
10964
10965 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10966 if (!msg)
10967 return;
10968
10969 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10970 if (!hdr) {
10971 nlmsg_free(msg);
10972 return;
10973 }
10974
10975 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10976 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10977 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10978 goto nla_put_failure;
10979
10980 genlmsg_end(msg, hdr);
10981
68eb5503 10982 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10983 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 10984 return;
10985
10986 nla_put_failure:
10987 genlmsg_cancel(msg, hdr);
10988 nlmsg_free(msg);
10989}
947add36 10990EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10991
b92ab5d8
JB		 10992static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10993 const u8 *addr, gfp_t gfp)
28946da7
JB		 10994{
10995 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10996 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 10997 struct sk_buff *msg;
10998 void *hdr;
15e47304 10999 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 11000
15e47304 11001 if (!nlportid)
28946da7
JB		 11002 return false;
11003
11004 msg = nlmsg_new(100, gfp);
11005 if (!msg)
11006 return true;
11007
b92ab5d8 11008 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 11009 if (!hdr) {
11010 nlmsg_free(msg);
11011 return true;
11012 }
11013
9360ffd1
DM		 11014 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11015 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11016 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11017 goto nla_put_failure;
28946da7 11018
9c90a9f6 11019 genlmsg_end(msg, hdr);
15e47304 11020 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 11021 return true;
11022
11023 nla_put_failure:
11024 genlmsg_cancel(msg, hdr);
11025 nlmsg_free(msg);
11026 return true;
11027}
11028
947add36
JB		 11029bool cfg80211_rx_spurious_frame(struct net_device *dev,
11030 const u8 *addr, gfp_t gfp)
b92ab5d8 11031{
947add36
JB		 11032 struct wireless_dev *wdev = dev->ieee80211_ptr;
11033 bool ret;
11034
11035 trace_cfg80211_rx_spurious_frame(dev, addr);
11036
11037 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11038 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11039 trace_cfg80211_return_bool(false);
11040 return false;
11041 }
11042 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11043 addr, gfp);
11044 trace_cfg80211_return_bool(ret);
11045 return ret;
b92ab5d8 11046}
947add36 11047EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11048
947add36
JB		 11049bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11050 const u8 *addr, gfp_t gfp)
b92ab5d8 11051{
947add36
JB		 11052 struct wireless_dev *wdev = dev->ieee80211_ptr;
11053 bool ret;
11054
11055 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11056
11057 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11058 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11059 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11060 trace_cfg80211_return_bool(false);
11061 return false;
11062 }
11063 ret = __nl80211_unexpected_frame(dev,
11064 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11065 addr, gfp);
11066 trace_cfg80211_return_bool(ret);
11067 return ret;
b92ab5d8 11068}
947add36 11069EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11070
2e161f78 11071int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11072 struct wireless_dev *wdev, u32 nlportid,
804483e9 11073 int freq, int sig_dbm,
19504cf5 11074 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11075{
71bbc994 11076 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11077 struct sk_buff *msg;
11078 void *hdr;
026331c4
JM		 11079
11080 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11081 if (!msg)
11082 return -ENOMEM;
11083
2e161f78 11084 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11085 if (!hdr) {
11086 nlmsg_free(msg);
11087 return -ENOMEM;
11088 }
11089
9360ffd1 11090 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11091 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11092 netdev->ifindex)) ||
a838490b 11093 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11094 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11095 (sig_dbm &&
11096 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11097 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11098 (flags &&
11099 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11100 goto nla_put_failure;
026331c4 11101
3b7b72ee 11102 genlmsg_end(msg, hdr);
026331c4 11103
15e47304 11104 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11105
11106 nla_put_failure:
11107 genlmsg_cancel(msg, hdr);
11108 nlmsg_free(msg);
11109 return -ENOBUFS;
11110}
11111
947add36
JB		 11112void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11113 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11114{
947add36 11115 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11116 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11117 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11118 struct sk_buff *msg;
11119 void *hdr;
11120
947add36
JB		 11121 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11122
026331c4
JM		 11123 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11124 if (!msg)
11125 return;
11126
2e161f78 11127 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11128 if (!hdr) {
11129 nlmsg_free(msg);
11130 return;
11131 }
11132
9360ffd1 11133 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11134 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11135 netdev->ifindex)) ||
a838490b 11136 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11137 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11138 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11139 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11140 goto nla_put_failure;
026331c4 11141
3b7b72ee 11142 genlmsg_end(msg, hdr);
026331c4 11143
68eb5503 11144 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11145 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11146 return;
11147
11148 nla_put_failure:
11149 genlmsg_cancel(msg, hdr);
11150 nlmsg_free(msg);
11151}
947add36 11152EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11153
947add36
JB		 11154void cfg80211_cqm_rssi_notify(struct net_device *dev,
11155 enum nl80211_cqm_rssi_threshold_event rssi_event,
11156 gfp_t gfp)
d6dc1a38 11157{
947add36
JB		 11158 struct wireless_dev *wdev = dev->ieee80211_ptr;
11159 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11160 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
d6dc1a38
JO		 11161 struct sk_buff *msg;
11162 struct nlattr *pinfoattr;
11163 void *hdr;
11164
947add36
JB		 11165 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11166
58050fce 11167 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 11168 if (!msg)
11169 return;
11170
11171 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11172 if (!hdr) {
11173 nlmsg_free(msg);
11174 return;
11175 }
11176
9360ffd1 11177 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11178 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11179 goto nla_put_failure;
d6dc1a38
JO		 11180
11181 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11182 if (!pinfoattr)
11183 goto nla_put_failure;
11184
9360ffd1
DM		 11185 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11186 rssi_event))
11187 goto nla_put_failure;
d6dc1a38
JO		 11188
11189 nla_nest_end(msg, pinfoattr);
11190
3b7b72ee 11191 genlmsg_end(msg, hdr);
d6dc1a38 11192
68eb5503 11193 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11194 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 11195 return;
11196
11197 nla_put_failure:
11198 genlmsg_cancel(msg, hdr);
11199 nlmsg_free(msg);
11200}
947add36 11201EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11202
947add36
JB		 11203static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11204 struct net_device *netdev, const u8 *bssid,
11205 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 11206{
11207 struct sk_buff *msg;
11208 struct nlattr *rekey_attr;
11209 void *hdr;
11210
58050fce 11211 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 11212 if (!msg)
11213 return;
11214
11215 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11216 if (!hdr) {
11217 nlmsg_free(msg);
11218 return;
11219 }
11220
9360ffd1
DM		 11221 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11222 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11223 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11224 goto nla_put_failure;
e5497d76
JB		 11225
11226 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11227 if (!rekey_attr)
11228 goto nla_put_failure;
11229
9360ffd1
DM		 11230 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11231 NL80211_REPLAY_CTR_LEN, replay_ctr))
11232 goto nla_put_failure;
e5497d76
JB		 11233
11234 nla_nest_end(msg, rekey_attr);
11235
3b7b72ee 11236 genlmsg_end(msg, hdr);
e5497d76 11237
68eb5503 11238 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11239 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11240 return;
11241
11242 nla_put_failure:
11243 genlmsg_cancel(msg, hdr);
11244 nlmsg_free(msg);
11245}
11246
947add36
JB		 11247void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11248 const u8 *replay_ctr, gfp_t gfp)
11249{
11250 struct wireless_dev *wdev = dev->ieee80211_ptr;
11251 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11252 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11253
11254 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11255 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11256}
11257EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11258
11259static void
11260nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11261 struct net_device *netdev, int index,
11262 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11263{
11264 struct sk_buff *msg;
11265 struct nlattr *attr;
11266 void *hdr;
11267
58050fce 11268 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11269 if (!msg)
11270 return;
11271
11272 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11273 if (!hdr) {
11274 nlmsg_free(msg);
11275 return;
11276 }
11277
9360ffd1
DM		 11278 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11279 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11280 goto nla_put_failure;
c9df56b4
JM		 11281
11282 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11283 if (!attr)
11284 goto nla_put_failure;
11285
9360ffd1
DM		 11286 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11287 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11288 (preauth &&
11289 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11290 goto nla_put_failure;
c9df56b4
JM		 11291
11292 nla_nest_end(msg, attr);
11293
3b7b72ee 11294 genlmsg_end(msg, hdr);
c9df56b4 11295
68eb5503 11296 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11297 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 11298 return;
11299
11300 nla_put_failure:
11301 genlmsg_cancel(msg, hdr);
11302 nlmsg_free(msg);
11303}
11304
947add36
JB		 11305void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11306 const u8 *bssid, bool preauth, gfp_t gfp)
11307{
11308 struct wireless_dev *wdev = dev->ieee80211_ptr;
11309 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11310 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11311
11312 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11313 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11314}
11315EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11316
11317static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11318 struct net_device *netdev,
11319 struct cfg80211_chan_def *chandef,
11320 gfp_t gfp)
5314526b
TP		 11321{
11322 struct sk_buff *msg;
11323 void *hdr;
11324
58050fce 11325 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 11326 if (!msg)
11327 return;
11328
11329 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11330 if (!hdr) {
11331 nlmsg_free(msg);
11332 return;
11333 }
11334
683b6d3b
JB		 11335 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11336 goto nla_put_failure;
11337
11338 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11339 goto nla_put_failure;
5314526b
TP		 11340
11341 genlmsg_end(msg, hdr);
11342
68eb5503 11343 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11344 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11345 return;
11346
11347 nla_put_failure:
11348 genlmsg_cancel(msg, hdr);
11349 nlmsg_free(msg);
11350}
11351
947add36
JB		 11352void cfg80211_ch_switch_notify(struct net_device *dev,
11353 struct cfg80211_chan_def *chandef)
84f10708 11354{
947add36
JB		 11355 struct wireless_dev *wdev = dev->ieee80211_ptr;
11356 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11357 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 11358
e487eaeb 11359 ASSERT_WDEV_LOCK(wdev);
947add36 11360
e487eaeb 11361 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36
JB		 11362
11363 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 11364 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 11365 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11366 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
e487eaeb 11367 return;
947add36 11368
9e0e2961 11369 wdev->chandef = *chandef;
96f55f12 11370 wdev->preset_chandef = *chandef;
947add36 11371 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
947add36
JB		 11372}
11373EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11374
11375void cfg80211_cqm_txe_notify(struct net_device *dev,
11376 const u8 *peer, u32 num_packets,
11377 u32 rate, u32 intvl, gfp_t gfp)
11378{
11379 struct wireless_dev *wdev = dev->ieee80211_ptr;
11380 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11381 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
84f10708
TP		 11382 struct sk_buff *msg;
11383 struct nlattr *pinfoattr;
11384 void *hdr;
11385
11386 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11387 if (!msg)
11388 return;
11389
11390 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11391 if (!hdr) {
11392 nlmsg_free(msg);
11393 return;
11394 }
11395
11396 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11397 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11398 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11399 goto nla_put_failure;
11400
11401 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11402 if (!pinfoattr)
11403 goto nla_put_failure;
11404
11405 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11406 goto nla_put_failure;
11407
11408 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11409 goto nla_put_failure;
11410
11411 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11412 goto nla_put_failure;
11413
11414 nla_nest_end(msg, pinfoattr);
11415
11416 genlmsg_end(msg, hdr);
11417
68eb5503 11418 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11419 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11420 return;
11421
11422 nla_put_failure:
11423 genlmsg_cancel(msg, hdr);
11424 nlmsg_free(msg);
11425}
947add36 11426EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11427
04f39047
SW		 11428void
11429nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11430 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11431 enum nl80211_radar_event event,
11432 struct net_device *netdev, gfp_t gfp)
11433{
11434 struct sk_buff *msg;
11435 void *hdr;
11436
11437 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11438 if (!msg)
11439 return;
11440
11441 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11442 if (!hdr) {
11443 nlmsg_free(msg);
11444 return;
11445 }
11446
11447 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11448 goto nla_put_failure;
11449
11450 /* NOP and radar events don't need a netdev parameter */
11451 if (netdev) {
11452 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11453
11454 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11455 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11456 goto nla_put_failure;
11457 }
11458
11459 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11460 goto nla_put_failure;
11461
11462 if (nl80211_send_chandef(msg, chandef))
11463 goto nla_put_failure;
11464
9c90a9f6 11465 genlmsg_end(msg, hdr);
04f39047 11466
68eb5503 11467 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11468 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11469 return;
11470
11471 nla_put_failure:
11472 genlmsg_cancel(msg, hdr);
11473 nlmsg_free(msg);
11474}
11475
947add36
JB		 11476void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11477 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11478{
947add36
JB		 11479 struct wireless_dev *wdev = dev->ieee80211_ptr;
11480 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11481 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
c063dbf5
JB		 11482 struct sk_buff *msg;
11483 struct nlattr *pinfoattr;
11484 void *hdr;
11485
947add36
JB		 11486 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11487
58050fce 11488 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 11489 if (!msg)
11490 return;
11491
11492 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11493 if (!hdr) {
11494 nlmsg_free(msg);
11495 return;
11496 }
11497
9360ffd1 11498 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11499 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 11500 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11501 goto nla_put_failure;
c063dbf5
JB		 11502
11503 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11504 if (!pinfoattr)
11505 goto nla_put_failure;
11506
9360ffd1
DM		 11507 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11508 goto nla_put_failure;
c063dbf5
JB		 11509
11510 nla_nest_end(msg, pinfoattr);
11511
3b7b72ee 11512 genlmsg_end(msg, hdr);
c063dbf5 11513
68eb5503 11514 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11515 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 11516 return;
11517
11518 nla_put_failure:
11519 genlmsg_cancel(msg, hdr);
11520 nlmsg_free(msg);
11521}
947add36 11522EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 11523
7f6cf311
JB		 11524void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11525 u64 cookie, bool acked, gfp_t gfp)
11526{
11527 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11528 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 11529 struct sk_buff *msg;
11530 void *hdr;
7f6cf311 11531
4ee3e063
BL		 11532 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11533
58050fce 11534 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 11535
7f6cf311
JB		 11536 if (!msg)
11537 return;
11538
11539 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11540 if (!hdr) {
11541 nlmsg_free(msg);
11542 return;
11543 }
11544
9360ffd1
DM		 11545 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11546 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11547 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11548 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11549 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11550 goto nla_put_failure;
7f6cf311 11551
9c90a9f6 11552 genlmsg_end(msg, hdr);
7f6cf311 11553
68eb5503 11554 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11555 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 11556 return;
11557
11558 nla_put_failure:
11559 genlmsg_cancel(msg, hdr);
11560 nlmsg_free(msg);
11561}
11562EXPORT_SYMBOL(cfg80211_probe_status);
11563
5e760230
JB		 11564void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11565 const u8 *frame, size_t len,
37c73b5f 11566 int freq, int sig_dbm)
5e760230 11567{
f26cbf40 11568 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 11569 struct sk_buff *msg;
11570 void *hdr;
37c73b5f 11571 struct cfg80211_beacon_registration *reg;
5e760230 11572
4ee3e063
BL		 11573 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11574
37c73b5f
BG		 11575 spin_lock_bh(&rdev->beacon_registrations_lock);
11576 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11577 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11578 if (!msg) {
11579 spin_unlock_bh(&rdev->beacon_registrations_lock);
11580 return;
11581 }
5e760230 11582
37c73b5f
BG		 11583 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11584 if (!hdr)
11585 goto nla_put_failure;
5e760230 11586
37c73b5f
BG		 11587 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11588 (freq &&
11589 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11590 (sig_dbm &&
11591 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11592 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11593 goto nla_put_failure;
5e760230 11594
37c73b5f 11595 genlmsg_end(msg, hdr);
5e760230 11596
37c73b5f
BG		 11597 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11598 }
11599 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11600 return;
11601
11602 nla_put_failure:
37c73b5f
BG		 11603 spin_unlock_bh(&rdev->beacon_registrations_lock);
11604 if (hdr)
11605 genlmsg_cancel(msg, hdr);
5e760230
JB		 11606 nlmsg_free(msg);
11607}
11608EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11609
cd8f7cb4
JB		 11610#ifdef CONFIG_PM
11611void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11612 struct cfg80211_wowlan_wakeup *wakeup,
11613 gfp_t gfp)
11614{
f26cbf40 11615 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 11616 struct sk_buff *msg;
11617 void *hdr;
9c90a9f6 11618 int size = 200;
cd8f7cb4
JB		 11619
11620 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11621
11622 if (wakeup)
11623 size += wakeup->packet_present_len;
11624
11625 msg = nlmsg_new(size, gfp);
11626 if (!msg)
11627 return;
11628
11629 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11630 if (!hdr)
11631 goto free_msg;
11632
11633 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11634 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11635 goto free_msg;
11636
11637 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11638 wdev->netdev->ifindex))
11639 goto free_msg;
11640
11641 if (wakeup) {
11642 struct nlattr *reasons;
11643
11644 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 11645 if (!reasons)
11646 goto free_msg;
cd8f7cb4
JB		 11647
11648 if (wakeup->disconnect &&
11649 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11650 goto free_msg;
11651 if (wakeup->magic_pkt &&
11652 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11653 goto free_msg;
11654 if (wakeup->gtk_rekey_failure &&
11655 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11656 goto free_msg;
11657 if (wakeup->eap_identity_req &&
11658 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11659 goto free_msg;
11660 if (wakeup->four_way_handshake &&
11661 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11662 goto free_msg;
11663 if (wakeup->rfkill_release &&
11664 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11665 goto free_msg;
11666
11667 if (wakeup->pattern_idx >= 0 &&
11668 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11669 wakeup->pattern_idx))
11670 goto free_msg;
11671
ae917c9f
JB		 11672 if (wakeup->tcp_match &&
11673 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11674 goto free_msg;
2a0e047e 11675
ae917c9f
JB		 11676 if (wakeup->tcp_connlost &&
11677 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11678 goto free_msg;
2a0e047e 11679
ae917c9f
JB		 11680 if (wakeup->tcp_nomoretokens &&
11681 nla_put_flag(msg,
11682 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11683 goto free_msg;
2a0e047e 11684
cd8f7cb4
JB		 11685 if (wakeup->packet) {
11686 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11687 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11688
11689 if (!wakeup->packet_80211) {
11690 pkt_attr =
11691 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11692 len_attr =
11693 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11694 }
11695
11696 if (wakeup->packet_len &&
11697 nla_put_u32(msg, len_attr, wakeup->packet_len))
11698 goto free_msg;
11699
11700 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11701 wakeup->packet))
11702 goto free_msg;
11703 }
11704
11705 nla_nest_end(msg, reasons);
11706 }
11707
9c90a9f6 11708 genlmsg_end(msg, hdr);
cd8f7cb4 11709
68eb5503 11710 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11711 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 11712 return;
11713
11714 free_msg:
11715 nlmsg_free(msg);
11716}
11717EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11718#endif
11719
3475b094
JM		 11720void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11721 enum nl80211_tdls_operation oper,
11722 u16 reason_code, gfp_t gfp)
11723{
11724 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11725 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 11726 struct sk_buff *msg;
11727 void *hdr;
3475b094
JM		 11728
11729 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11730 reason_code);
11731
11732 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11733 if (!msg)
11734 return;
11735
11736 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11737 if (!hdr) {
11738 nlmsg_free(msg);
11739 return;
11740 }
11741
11742 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11743 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11744 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11745 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11746 (reason_code > 0 &&
11747 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11748 goto nla_put_failure;
11749
9c90a9f6 11750 genlmsg_end(msg, hdr);
3475b094 11751
68eb5503 11752 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11753 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 11754 return;
11755
11756 nla_put_failure:
11757 genlmsg_cancel(msg, hdr);
11758 nlmsg_free(msg);
11759}
11760EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11761
026331c4
JM		 11762static int nl80211_netlink_notify(struct notifier_block * nb,
11763 unsigned long state,
11764 void *_notify)
11765{
11766 struct netlink_notify *notify = _notify;
11767 struct cfg80211_registered_device *rdev;
11768 struct wireless_dev *wdev;
37c73b5f 11769 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11770
11771 if (state != NETLINK_URELEASE)
11772 return NOTIFY_DONE;
11773
11774 rcu_read_lock();
11775
5e760230 11776 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 11777 bool schedule_destroy_work = false;
11778
11779 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 11780 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 11781
78f22b6a
JB		 11782 if (wdev->owner_nlportid == notify->portid)
11783 schedule_destroy_work = true;
11784 }
11785
37c73b5f
BG		 11786 spin_lock_bh(&rdev->beacon_registrations_lock);
11787 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11788 list) {
11789 if (reg->nlportid == notify->portid) {
11790 list_del(&reg->list);
11791 kfree(reg);
11792 break;
11793 }
11794 }
11795 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 11796
11797 if (schedule_destroy_work) {
11798 struct cfg80211_iface_destroy *destroy;
11799
11800 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
11801 if (destroy) {
11802 destroy->nlportid = notify->portid;
11803 spin_lock(&rdev->destroy_list_lock);
11804 list_add(&destroy->list, &rdev->destroy_list);
11805 spin_unlock(&rdev->destroy_list_lock);
11806 schedule_work(&rdev->destroy_work);
11807 }
11808 }
5e760230 11809 }
026331c4
JM		 11810
11811 rcu_read_unlock();
11812
6784c7db 11813 return NOTIFY_OK;
026331c4
JM		 11814}
11815
11816static struct notifier_block nl80211_netlink_notifier = {
11817 .notifier_call = nl80211_netlink_notify,
11818};
11819
355199e0
JM		 11820void cfg80211_ft_event(struct net_device *netdev,
11821 struct cfg80211_ft_event_params *ft_event)
11822{
11823 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 11824 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 11825 struct sk_buff *msg;
11826 void *hdr;
355199e0
JM		 11827
11828 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11829
11830 if (!ft_event->target_ap)
11831 return;
11832
11833 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11834 if (!msg)
11835 return;
11836
11837 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 11838 if (!hdr)
11839 goto out;
355199e0 11840
ae917c9f
JB		 11841 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11842 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11843 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11844 goto out;
355199e0 11845
ae917c9f
JB		 11846 if (ft_event->ies &&
11847 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11848 goto out;
11849 if (ft_event->ric_ies &&
11850 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11851 ft_event->ric_ies))
11852 goto out;
355199e0 11853
9c90a9f6 11854 genlmsg_end(msg, hdr);
355199e0 11855
68eb5503 11856 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11857 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 11858 return;
11859 out:
11860 nlmsg_free(msg);
355199e0
JM		 11861}
11862EXPORT_SYMBOL(cfg80211_ft_event);
11863
5de17984
AS		 11864void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11865{
11866 struct cfg80211_registered_device *rdev;
11867 struct sk_buff *msg;
11868 void *hdr;
11869 u32 nlportid;
11870
f26cbf40 11871 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 11872 if (!rdev->crit_proto_nlportid)
11873 return;
11874
11875 nlportid = rdev->crit_proto_nlportid;
11876 rdev->crit_proto_nlportid = 0;
11877
11878 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11879 if (!msg)
11880 return;
11881
11882 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11883 if (!hdr)
11884 goto nla_put_failure;
11885
11886 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11887 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11888 goto nla_put_failure;
11889
11890 genlmsg_end(msg, hdr);
11891
11892 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11893 return;
11894
11895 nla_put_failure:
11896 if (hdr)
11897 genlmsg_cancel(msg, hdr);
11898 nlmsg_free(msg);
11899
11900}
11901EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11902
348baf0e
JB		 11903void nl80211_send_ap_stopped(struct wireless_dev *wdev)
11904{
11905 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11906 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 11907 struct sk_buff *msg;
11908 void *hdr;
11909
11910 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11911 if (!msg)
11912 return;
11913
11914 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
11915 if (!hdr)
11916 goto out;
11917
11918 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11919 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
11920 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11921 goto out;
11922
11923 genlmsg_end(msg, hdr);
11924
11925 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
11926 NL80211_MCGRP_MLME, GFP_KERNEL);
11927 return;
11928 out:
11929 nlmsg_free(msg);
11930}
11931
55682965
JB		 11932/* initialisation/exit functions */
11933
11934int nl80211_init(void)
11935{
0d63cbb5 11936 int err;
55682965 11937
2a94fe48
JB		 11938 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11939 nl80211_mcgrps);
55682965
JB		 11940 if (err)
11941 return err;
11942
026331c4
JM		 11943 err = netlink_register_notifier(&nl80211_netlink_notifier);
11944 if (err)
11945 goto err_out;
11946
55682965
JB		 11947 return 0;
11948 err_out:
11949 genl_unregister_family(&nl80211_fam);
11950 return err;
11951}
11952
11953void nl80211_exit(void)
11954{
026331c4 11955 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11956 genl_unregister_family(&nl80211_fam);
11957}
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